17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 595579064Sja * Common Development and Distribution License (the "License"). 695579064Sja * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 22*aa92d85bSgt * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate /* Copyright (c) 1990 Mentat Inc. */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate const char udp_version[] = "%Z%%M% %I% %E% SMI"; 307c478bd9Sstevel@tonic-gate 317c478bd9Sstevel@tonic-gate #include <sys/types.h> 327c478bd9Sstevel@tonic-gate #include <sys/stream.h> 33ff550d0eSmasputra #include <sys/dlpi.h> 34ff550d0eSmasputra #include <sys/pattr.h> 357c478bd9Sstevel@tonic-gate #include <sys/stropts.h> 367c478bd9Sstevel@tonic-gate #include <sys/strlog.h> 377c478bd9Sstevel@tonic-gate #include <sys/strsun.h> 38e4f35dbaSgt #include <sys/time.h> 397c478bd9Sstevel@tonic-gate #define _SUN_TPI_VERSION 2 407c478bd9Sstevel@tonic-gate #include <sys/tihdr.h> 417c478bd9Sstevel@tonic-gate #include <sys/timod.h> 427c478bd9Sstevel@tonic-gate #include <sys/ddi.h> 437c478bd9Sstevel@tonic-gate #include <sys/sunddi.h> 447c478bd9Sstevel@tonic-gate #include <sys/strsubr.h> 457c478bd9Sstevel@tonic-gate #include <sys/suntpi.h> 467c478bd9Sstevel@tonic-gate #include <sys/xti_inet.h> 477c478bd9Sstevel@tonic-gate #include <sys/cmn_err.h> 487c478bd9Sstevel@tonic-gate #include <sys/kmem.h> 497c478bd9Sstevel@tonic-gate #include <sys/policy.h> 507c478bd9Sstevel@tonic-gate #include <sys/ucred.h> 517c478bd9Sstevel@tonic-gate #include <sys/zone.h> 527c478bd9Sstevel@tonic-gate 537c478bd9Sstevel@tonic-gate #include <sys/socket.h> 54ff550d0eSmasputra #include <sys/sockio.h> 557c478bd9Sstevel@tonic-gate #include <sys/vtrace.h> 56381a2a9aSdr #include <sys/sdt.h> 577c478bd9Sstevel@tonic-gate #include <sys/debug.h> 587c478bd9Sstevel@tonic-gate #include <sys/isa_defs.h> 597c478bd9Sstevel@tonic-gate #include <sys/random.h> 607c478bd9Sstevel@tonic-gate #include <netinet/in.h> 617c478bd9Sstevel@tonic-gate #include <netinet/ip6.h> 627c478bd9Sstevel@tonic-gate #include <netinet/icmp6.h> 637c478bd9Sstevel@tonic-gate #include <netinet/udp.h> 647c478bd9Sstevel@tonic-gate #include <net/if.h> 65ff550d0eSmasputra #include <net/route.h> 667c478bd9Sstevel@tonic-gate 677c478bd9Sstevel@tonic-gate #include <inet/common.h> 687c478bd9Sstevel@tonic-gate #include <inet/ip.h> 69ff550d0eSmasputra #include <inet/ip_impl.h> 707c478bd9Sstevel@tonic-gate #include <inet/ip6.h> 717c478bd9Sstevel@tonic-gate #include <inet/ip_ire.h> 72ff550d0eSmasputra #include <inet/ip_if.h> 73ff550d0eSmasputra #include <inet/ip_multi.h> 74c793af95Ssangeeta #include <inet/ip_ndp.h> 757c478bd9Sstevel@tonic-gate #include <inet/mi.h> 767c478bd9Sstevel@tonic-gate #include <inet/mib2.h> 777c478bd9Sstevel@tonic-gate #include <inet/nd.h> 787c478bd9Sstevel@tonic-gate #include <inet/optcom.h> 797c478bd9Sstevel@tonic-gate #include <inet/snmpcom.h> 807c478bd9Sstevel@tonic-gate #include <inet/kstatcom.h> 817c478bd9Sstevel@tonic-gate #include <inet/udp_impl.h> 82ff550d0eSmasputra #include <inet/ipclassifier.h> 83ff550d0eSmasputra #include <inet/ipsec_impl.h> 84ff550d0eSmasputra #include <inet/ipp_common.h> 857c478bd9Sstevel@tonic-gate 867c478bd9Sstevel@tonic-gate /* 87ff550d0eSmasputra * The ipsec_info.h header file is here since it has the definition for the 887c478bd9Sstevel@tonic-gate * M_CTL message types used by IP to convey information to the ULP. The 8945916cd2Sjpk * ipsec_info.h needs the pfkeyv2.h, hence the latter's presence. 907c478bd9Sstevel@tonic-gate */ 917c478bd9Sstevel@tonic-gate #include <net/pfkeyv2.h> 927c478bd9Sstevel@tonic-gate #include <inet/ipsec_info.h> 937c478bd9Sstevel@tonic-gate 9445916cd2Sjpk #include <sys/tsol/label.h> 9545916cd2Sjpk #include <sys/tsol/tnet.h> 9645916cd2Sjpk #include <rpc/pmap_prot.h> 9745916cd2Sjpk 987c478bd9Sstevel@tonic-gate /* 997c478bd9Sstevel@tonic-gate * Synchronization notes: 1007c478bd9Sstevel@tonic-gate * 101fc80c0dfSnordmark * UDP is MT and uses the usual kernel synchronization primitives. There are 2 102fc80c0dfSnordmark * locks, the fanout lock (uf_lock) and the udp endpoint lock udp_rwlock. 103fc80c0dfSnordmark * We also use conn_lock when updating things that affect the IP classifier 104fc80c0dfSnordmark * lookup. 105fc80c0dfSnordmark * The lock order is udp_rwlock -> uf_lock and is udp_rwlock -> conn_lock. 1067c478bd9Sstevel@tonic-gate * 107fc80c0dfSnordmark * The fanout lock uf_lock: 108ff550d0eSmasputra * When a UDP endpoint is bound to a local port, it is inserted into 1097c478bd9Sstevel@tonic-gate * a bind hash list. The list consists of an array of udp_fanout_t buckets. 1107c478bd9Sstevel@tonic-gate * The size of the array is controlled by the udp_bind_fanout_size variable. 1117c478bd9Sstevel@tonic-gate * This variable can be changed in /etc/system if the default value is 112ff550d0eSmasputra * not large enough. Each bind hash bucket is protected by a per bucket 113ff550d0eSmasputra * lock. It protects the udp_bind_hash and udp_ptpbhn fields in the udp_t 114fc80c0dfSnordmark * structure and a few other fields in the udp_t. A UDP endpoint is removed 115fc80c0dfSnordmark * from the bind hash list only when it is being unbound or being closed. 116fc80c0dfSnordmark * The per bucket lock also protects a UDP endpoint's state changes. 117ff550d0eSmasputra * 118fc80c0dfSnordmark * The udp_rwlock: 119fc80c0dfSnordmark * This protects most of the other fields in the udp_t. The exact list of 120fc80c0dfSnordmark * fields which are protected by each of the above locks is documented in 121fc80c0dfSnordmark * the udp_t structure definition. 122ff550d0eSmasputra * 123fc80c0dfSnordmark * Plumbing notes: 124fc80c0dfSnordmark * UDP is always a device driver. For compatibility with mibopen() code 125fc80c0dfSnordmark * it is possible to I_PUSH "udp", but that results in pushing a passthrough 126fc80c0dfSnordmark * dummy module. 127ff550d0eSmasputra * 128fc80c0dfSnordmark * The above implies that we don't support any intermediate module to 129ff550d0eSmasputra * reside in between /dev/ip and udp -- in fact, we never supported such 130ff550d0eSmasputra * scenario in the past as the inter-layer communication semantics have 131fc80c0dfSnordmark * always been private. 1327c478bd9Sstevel@tonic-gate */ 1337c478bd9Sstevel@tonic-gate 134f4b3ec61Sdh /* For /etc/system control */ 1357c478bd9Sstevel@tonic-gate uint_t udp_bind_fanout_size = UDP_BIND_FANOUT_SIZE; 1367c478bd9Sstevel@tonic-gate 1377c478bd9Sstevel@tonic-gate #define NDD_TOO_QUICK_MSG \ 13845916cd2Sjpk "ndd get info rate too high for non-privileged users, try again " \ 1397c478bd9Sstevel@tonic-gate "later.\n" 1407c478bd9Sstevel@tonic-gate #define NDD_OUT_OF_BUF_MSG "<< Out of buffer >>\n" 1417c478bd9Sstevel@tonic-gate 14245916cd2Sjpk /* Option processing attrs */ 14345916cd2Sjpk typedef struct udpattrs_s { 14419a30e1aSrshoaib union { 14519a30e1aSrshoaib ip6_pkt_t *udpattr_ipp6; /* For V6 */ 14619a30e1aSrshoaib ip4_pkt_t *udpattr_ipp4; /* For V4 */ 14719a30e1aSrshoaib } udpattr_ippu; 14819a30e1aSrshoaib #define udpattr_ipp6 udpattr_ippu.udpattr_ipp6 14919a30e1aSrshoaib #define udpattr_ipp4 udpattr_ippu.udpattr_ipp4 15045916cd2Sjpk mblk_t *udpattr_mb; 15145916cd2Sjpk boolean_t udpattr_credset; 15245916cd2Sjpk } udpattrs_t; 15345916cd2Sjpk 1547c478bd9Sstevel@tonic-gate static void udp_addr_req(queue_t *q, mblk_t *mp); 1557c478bd9Sstevel@tonic-gate static void udp_bind(queue_t *q, mblk_t *mp); 1567c478bd9Sstevel@tonic-gate static void udp_bind_hash_insert(udp_fanout_t *uf, udp_t *udp); 1577c478bd9Sstevel@tonic-gate static void udp_bind_hash_remove(udp_t *udp, boolean_t caller_holds_lock); 158fc80c0dfSnordmark static void udp_bind_result(conn_t *, mblk_t *); 159fc80c0dfSnordmark static void udp_bind_ack(conn_t *, mblk_t *mp); 160fc80c0dfSnordmark static void udp_bind_error(conn_t *, mblk_t *mp); 161fc80c0dfSnordmark static int udp_build_hdrs(udp_t *udp); 1627c478bd9Sstevel@tonic-gate static void udp_capability_req(queue_t *q, mblk_t *mp); 1637c478bd9Sstevel@tonic-gate static int udp_close(queue_t *q); 1647c478bd9Sstevel@tonic-gate static void udp_connect(queue_t *q, mblk_t *mp); 1657c478bd9Sstevel@tonic-gate static void udp_disconnect(queue_t *q, mblk_t *mp); 1667c478bd9Sstevel@tonic-gate static void udp_err_ack(queue_t *q, mblk_t *mp, t_scalar_t t_error, 1677c478bd9Sstevel@tonic-gate int sys_error); 1687c478bd9Sstevel@tonic-gate static void udp_err_ack_prim(queue_t *q, mblk_t *mp, int primitive, 1697c478bd9Sstevel@tonic-gate t_scalar_t tlierr, int unixerr); 1707c478bd9Sstevel@tonic-gate static int udp_extra_priv_ports_get(queue_t *q, mblk_t *mp, caddr_t cp, 1717c478bd9Sstevel@tonic-gate cred_t *cr); 1727c478bd9Sstevel@tonic-gate static int udp_extra_priv_ports_add(queue_t *q, mblk_t *mp, 1737c478bd9Sstevel@tonic-gate char *value, caddr_t cp, cred_t *cr); 1747c478bd9Sstevel@tonic-gate static int udp_extra_priv_ports_del(queue_t *q, mblk_t *mp, 1757c478bd9Sstevel@tonic-gate char *value, caddr_t cp, cred_t *cr); 1767c478bd9Sstevel@tonic-gate static void udp_icmp_error(queue_t *q, mblk_t *mp); 1777c478bd9Sstevel@tonic-gate static void udp_icmp_error_ipv6(queue_t *q, mblk_t *mp); 1787c478bd9Sstevel@tonic-gate static void udp_info_req(queue_t *q, mblk_t *mp); 179fc80c0dfSnordmark static void udp_input(void *, mblk_t *, void *); 1807c478bd9Sstevel@tonic-gate static mblk_t *udp_ip_bind_mp(udp_t *udp, t_scalar_t bind_prim, 1817c478bd9Sstevel@tonic-gate t_scalar_t addr_length); 182fc80c0dfSnordmark static void udp_lrput(queue_t *, mblk_t *); 183fc80c0dfSnordmark static void udp_lwput(queue_t *, mblk_t *); 1847c478bd9Sstevel@tonic-gate static int udp_open(queue_t *q, dev_t *devp, int flag, int sflag, 185fc80c0dfSnordmark cred_t *credp, boolean_t isv6); 186fc80c0dfSnordmark static int udp_openv4(queue_t *q, dev_t *devp, int flag, int sflag, 187fc80c0dfSnordmark cred_t *credp); 188fc80c0dfSnordmark static int udp_openv6(queue_t *q, dev_t *devp, int flag, int sflag, 1897c478bd9Sstevel@tonic-gate cred_t *credp); 1907c478bd9Sstevel@tonic-gate static int udp_unitdata_opt_process(queue_t *q, mblk_t *mp, 19145916cd2Sjpk int *errorp, udpattrs_t *udpattrs); 1927c478bd9Sstevel@tonic-gate static boolean_t udp_opt_allow_udr_set(t_scalar_t level, t_scalar_t name); 1937c478bd9Sstevel@tonic-gate static int udp_param_get(queue_t *q, mblk_t *mp, caddr_t cp, cred_t *cr); 194f4b3ec61Sdh static boolean_t udp_param_register(IDP *ndp, udpparam_t *udppa, int cnt); 1957c478bd9Sstevel@tonic-gate static int udp_param_set(queue_t *q, mblk_t *mp, char *value, caddr_t cp, 1967c478bd9Sstevel@tonic-gate cred_t *cr); 1977c478bd9Sstevel@tonic-gate static void udp_report_item(mblk_t *mp, udp_t *udp); 198ff550d0eSmasputra static int udp_rinfop(queue_t *q, infod_t *dp); 199ff550d0eSmasputra static int udp_rrw(queue_t *q, struiod_t *dp); 2007c478bd9Sstevel@tonic-gate static int udp_status_report(queue_t *q, mblk_t *mp, caddr_t cp, 2017c478bd9Sstevel@tonic-gate cred_t *cr); 202437220cdSdanmcd static void udp_send_data(udp_t *, queue_t *, mblk_t *, ipha_t *); 203ff550d0eSmasputra static void udp_ud_err(queue_t *q, mblk_t *mp, uchar_t *destaddr, 204ff550d0eSmasputra t_scalar_t destlen, t_scalar_t err); 2057c478bd9Sstevel@tonic-gate static void udp_unbind(queue_t *q, mblk_t *mp); 20645916cd2Sjpk static in_port_t udp_update_next_port(udp_t *udp, in_port_t port, 20745916cd2Sjpk boolean_t random); 208437220cdSdanmcd static mblk_t *udp_output_v4(conn_t *, mblk_t *, ipaddr_t, uint16_t, uint_t, 209437220cdSdanmcd int *, boolean_t); 210ff550d0eSmasputra static mblk_t *udp_output_v6(conn_t *connp, mblk_t *mp, sin6_t *sin6, 21145916cd2Sjpk int *error); 2127c478bd9Sstevel@tonic-gate static void udp_wput_other(queue_t *q, mblk_t *mp); 2137c478bd9Sstevel@tonic-gate static void udp_wput_iocdata(queue_t *q, mblk_t *mp); 214ff550d0eSmasputra static size_t udp_set_rcv_hiwat(udp_t *udp, size_t size); 2157c478bd9Sstevel@tonic-gate 216f4b3ec61Sdh static void *udp_stack_init(netstackid_t stackid, netstack_t *ns); 217f4b3ec61Sdh static void udp_stack_fini(netstackid_t stackid, void *arg); 218f4b3ec61Sdh 219f4b3ec61Sdh static void *udp_kstat_init(netstackid_t stackid); 220f4b3ec61Sdh static void udp_kstat_fini(netstackid_t stackid, kstat_t *ksp); 221f4b3ec61Sdh static void *udp_kstat2_init(netstackid_t, udp_stat_t *); 222f4b3ec61Sdh static void udp_kstat2_fini(netstackid_t, kstat_t *); 2237c478bd9Sstevel@tonic-gate static int udp_kstat_update(kstat_t *kp, int rw); 224ff550d0eSmasputra 225ff550d0eSmasputra static void udp_rcv_enqueue(queue_t *q, udp_t *udp, mblk_t *mp, 226ff550d0eSmasputra uint_t pkt_len); 227ff550d0eSmasputra static void udp_rcv_drain(queue_t *q, udp_t *udp, boolean_t closing); 228fc80c0dfSnordmark static void udp_xmit(queue_t *, mblk_t *, ire_t *ire, conn_t *, zoneid_t); 229ff550d0eSmasputra 230ff550d0eSmasputra #define UDP_RECV_HIWATER (56 * 1024) 231ff550d0eSmasputra #define UDP_RECV_LOWATER 128 232ff550d0eSmasputra #define UDP_XMIT_HIWATER (56 * 1024) 233ff550d0eSmasputra #define UDP_XMIT_LOWATER 1024 234ff550d0eSmasputra 235fc80c0dfSnordmark static struct module_info udp_mod_info = { 236ff550d0eSmasputra UDP_MOD_ID, UDP_MOD_NAME, 1, INFPSZ, UDP_RECV_HIWATER, UDP_RECV_LOWATER 237ff550d0eSmasputra }; 2387c478bd9Sstevel@tonic-gate 239fc80c0dfSnordmark /* 240fc80c0dfSnordmark * Entry points for UDP as a device. 241fc80c0dfSnordmark * We have separate open functions for the /dev/udp and /dev/udp6 devices. 242fc80c0dfSnordmark */ 243fc80c0dfSnordmark static struct qinit udp_rinitv4 = { 244fc80c0dfSnordmark NULL, NULL, udp_openv4, udp_close, NULL, 245fc80c0dfSnordmark &udp_mod_info, NULL, udp_rrw, udp_rinfop, STRUIOT_STANDARD 246fc80c0dfSnordmark }; 247fc80c0dfSnordmark 248fc80c0dfSnordmark static struct qinit udp_rinitv6 = { 249fc80c0dfSnordmark NULL, NULL, udp_openv6, udp_close, NULL, 250fc80c0dfSnordmark &udp_mod_info, NULL, udp_rrw, udp_rinfop, STRUIOT_STANDARD 251ff550d0eSmasputra }; 2527c478bd9Sstevel@tonic-gate 253ff550d0eSmasputra static struct qinit udp_winit = { 254a9737be2Snordmark (pfi_t)udp_wput, (pfi_t)ip_wsrv, NULL, NULL, NULL, 255fc80c0dfSnordmark &udp_mod_info, NULL, NULL, NULL, STRUIOT_NONE 256fc80c0dfSnordmark }; 257fc80c0dfSnordmark 258fc80c0dfSnordmark /* 259fc80c0dfSnordmark * UDP needs to handle I_LINK and I_PLINK since ifconfig 260fc80c0dfSnordmark * likes to use it as a place to hang the various streams. 261fc80c0dfSnordmark */ 262fc80c0dfSnordmark static struct qinit udp_lrinit = { 263fc80c0dfSnordmark (pfi_t)udp_lrput, NULL, udp_openv4, udp_close, NULL, 264fc80c0dfSnordmark &udp_mod_info 2657c478bd9Sstevel@tonic-gate }; 2667c478bd9Sstevel@tonic-gate 267fc80c0dfSnordmark static struct qinit udp_lwinit = { 268fc80c0dfSnordmark (pfi_t)udp_lwput, NULL, udp_openv4, udp_close, NULL, 269fc80c0dfSnordmark &udp_mod_info 2707c478bd9Sstevel@tonic-gate }; 2717c478bd9Sstevel@tonic-gate 272fc80c0dfSnordmark /* For AF_INET aka /dev/udp */ 273fc80c0dfSnordmark struct streamtab udpinfov4 = { 274fc80c0dfSnordmark &udp_rinitv4, &udp_winit, &udp_lrinit, &udp_lwinit 2757c478bd9Sstevel@tonic-gate }; 2767c478bd9Sstevel@tonic-gate 277fc80c0dfSnordmark /* For AF_INET6 aka /dev/udp6 */ 278fc80c0dfSnordmark struct streamtab udpinfov6 = { 279fc80c0dfSnordmark &udp_rinitv6, &udp_winit, &udp_lrinit, &udp_lwinit 2807c478bd9Sstevel@tonic-gate }; 2817c478bd9Sstevel@tonic-gate 2827c478bd9Sstevel@tonic-gate static sin_t sin_null; /* Zero address for quick clears */ 2837c478bd9Sstevel@tonic-gate static sin6_t sin6_null; /* Zero address for quick clears */ 2847c478bd9Sstevel@tonic-gate 285ff550d0eSmasputra #define UDP_MAXPACKET_IPV4 (IP_MAXPACKET - UDPH_SIZE - IP_SIMPLE_HDR_LENGTH) 2867c478bd9Sstevel@tonic-gate 2877c478bd9Sstevel@tonic-gate /* Default structure copied into T_INFO_ACK messages */ 2887c478bd9Sstevel@tonic-gate static struct T_info_ack udp_g_t_info_ack_ipv4 = { 2897c478bd9Sstevel@tonic-gate T_INFO_ACK, 2907c478bd9Sstevel@tonic-gate UDP_MAXPACKET_IPV4, /* TSDU_size. Excl. headers */ 2917c478bd9Sstevel@tonic-gate T_INVALID, /* ETSU_size. udp does not support expedited data. */ 2927c478bd9Sstevel@tonic-gate T_INVALID, /* CDATA_size. udp does not support connect data. */ 2937c478bd9Sstevel@tonic-gate T_INVALID, /* DDATA_size. udp does not support disconnect data. */ 2947c478bd9Sstevel@tonic-gate sizeof (sin_t), /* ADDR_size. */ 2957c478bd9Sstevel@tonic-gate 0, /* OPT_size - not initialized here */ 2967c478bd9Sstevel@tonic-gate UDP_MAXPACKET_IPV4, /* TIDU_size. Excl. headers */ 2977c478bd9Sstevel@tonic-gate T_CLTS, /* SERV_type. udp supports connection-less. */ 2987c478bd9Sstevel@tonic-gate TS_UNBND, /* CURRENT_state. This is set from udp_state. */ 2997c478bd9Sstevel@tonic-gate (XPG4_1|SENDZERO) /* PROVIDER_flag */ 3007c478bd9Sstevel@tonic-gate }; 3017c478bd9Sstevel@tonic-gate 302ff550d0eSmasputra #define UDP_MAXPACKET_IPV6 (IP_MAXPACKET - UDPH_SIZE - IPV6_HDR_LEN) 303ff550d0eSmasputra 3047c478bd9Sstevel@tonic-gate static struct T_info_ack udp_g_t_info_ack_ipv6 = { 3057c478bd9Sstevel@tonic-gate T_INFO_ACK, 3067c478bd9Sstevel@tonic-gate UDP_MAXPACKET_IPV6, /* TSDU_size. Excl. headers */ 3077c478bd9Sstevel@tonic-gate T_INVALID, /* ETSU_size. udp does not support expedited data. */ 3087c478bd9Sstevel@tonic-gate T_INVALID, /* CDATA_size. udp does not support connect data. */ 3097c478bd9Sstevel@tonic-gate T_INVALID, /* DDATA_size. udp does not support disconnect data. */ 3107c478bd9Sstevel@tonic-gate sizeof (sin6_t), /* ADDR_size. */ 3117c478bd9Sstevel@tonic-gate 0, /* OPT_size - not initialized here */ 3127c478bd9Sstevel@tonic-gate UDP_MAXPACKET_IPV6, /* TIDU_size. Excl. headers */ 3137c478bd9Sstevel@tonic-gate T_CLTS, /* SERV_type. udp supports connection-less. */ 3147c478bd9Sstevel@tonic-gate TS_UNBND, /* CURRENT_state. This is set from udp_state. */ 3157c478bd9Sstevel@tonic-gate (XPG4_1|SENDZERO) /* PROVIDER_flag */ 3167c478bd9Sstevel@tonic-gate }; 3177c478bd9Sstevel@tonic-gate 3187c478bd9Sstevel@tonic-gate /* largest UDP port number */ 3197c478bd9Sstevel@tonic-gate #define UDP_MAX_PORT 65535 3207c478bd9Sstevel@tonic-gate 3217c478bd9Sstevel@tonic-gate /* 322f4b3ec61Sdh * Table of ND variables supported by udp. These are loaded into us_nd 3237c478bd9Sstevel@tonic-gate * in udp_open. 3247c478bd9Sstevel@tonic-gate * All of these are alterable, within the min/max values given, at run time. 3257c478bd9Sstevel@tonic-gate */ 326ff550d0eSmasputra /* BEGIN CSTYLED */ 327ff550d0eSmasputra udpparam_t udp_param_arr[] = { 328ff550d0eSmasputra /*min max value name */ 329ff550d0eSmasputra { 0L, 256, 32, "udp_wroff_extra" }, 330ff550d0eSmasputra { 1L, 255, 255, "udp_ipv4_ttl" }, 331ff550d0eSmasputra { 0, IPV6_MAX_HOPS, IPV6_DEFAULT_HOPS, "udp_ipv6_hoplimit"}, 332ff550d0eSmasputra { 1024, (32 * 1024), 1024, "udp_smallest_nonpriv_port" }, 333ff550d0eSmasputra { 0, 1, 1, "udp_do_checksum" }, 334ff550d0eSmasputra { 1024, UDP_MAX_PORT, (32 * 1024), "udp_smallest_anon_port" }, 335ff550d0eSmasputra { 1024, UDP_MAX_PORT, UDP_MAX_PORT, "udp_largest_anon_port" }, 336ff550d0eSmasputra { UDP_XMIT_LOWATER, (1<<30), UDP_XMIT_HIWATER, "udp_xmit_hiwat"}, 337ff550d0eSmasputra { 0, (1<<30), UDP_XMIT_LOWATER, "udp_xmit_lowat"}, 338ff550d0eSmasputra { UDP_RECV_LOWATER, (1<<30), UDP_RECV_HIWATER, "udp_recv_hiwat"}, 339ff550d0eSmasputra { 65536, (1<<30), 2*1024*1024, "udp_max_buf"}, 340ff550d0eSmasputra { 100, 60000, 1000, "udp_ndd_get_info_interval"}, 3417c478bd9Sstevel@tonic-gate }; 342ff550d0eSmasputra /* END CSTYLED */ 3437c478bd9Sstevel@tonic-gate 344f4b3ec61Sdh /* Setable in /etc/system */ 3457c478bd9Sstevel@tonic-gate /* If set to 0, pick ephemeral port sequentially; otherwise randomly. */ 3467c478bd9Sstevel@tonic-gate uint32_t udp_random_anon_port = 1; 3477c478bd9Sstevel@tonic-gate 3487c478bd9Sstevel@tonic-gate /* 3497c478bd9Sstevel@tonic-gate * Hook functions to enable cluster networking. 3507c478bd9Sstevel@tonic-gate * On non-clustered systems these vectors must always be NULL 3517c478bd9Sstevel@tonic-gate */ 3527c478bd9Sstevel@tonic-gate 3537c478bd9Sstevel@tonic-gate void (*cl_inet_bind)(uchar_t protocol, sa_family_t addr_family, 354ff550d0eSmasputra uint8_t *laddrp, in_port_t lport) = NULL; 3557c478bd9Sstevel@tonic-gate void (*cl_inet_unbind)(uint8_t protocol, sa_family_t addr_family, 356ff550d0eSmasputra uint8_t *laddrp, in_port_t lport) = NULL; 357ff550d0eSmasputra 358ff550d0eSmasputra typedef union T_primitives *t_primp_t; 359ff550d0eSmasputra 3607c478bd9Sstevel@tonic-gate /* 36145916cd2Sjpk * Return the next anonymous port in the privileged port range for 3627c478bd9Sstevel@tonic-gate * bind checking. 36345916cd2Sjpk * 36445916cd2Sjpk * Trusted Extension (TX) notes: TX allows administrator to mark or 36545916cd2Sjpk * reserve ports as Multilevel ports (MLP). MLP has special function 36645916cd2Sjpk * on TX systems. Once a port is made MLP, it's not available as 36745916cd2Sjpk * ordinary port. This creates "holes" in the port name space. It 36845916cd2Sjpk * may be necessary to skip the "holes" find a suitable anon port. 3697c478bd9Sstevel@tonic-gate */ 3707c478bd9Sstevel@tonic-gate static in_port_t 37145916cd2Sjpk udp_get_next_priv_port(udp_t *udp) 3727c478bd9Sstevel@tonic-gate { 3737c478bd9Sstevel@tonic-gate static in_port_t next_priv_port = IPPORT_RESERVED - 1; 37445916cd2Sjpk in_port_t nextport; 37545916cd2Sjpk boolean_t restart = B_FALSE; 376f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 3777c478bd9Sstevel@tonic-gate 37845916cd2Sjpk retry: 379f4b3ec61Sdh if (next_priv_port < us->us_min_anonpriv_port || 38045916cd2Sjpk next_priv_port >= IPPORT_RESERVED) { 3817c478bd9Sstevel@tonic-gate next_priv_port = IPPORT_RESERVED - 1; 38245916cd2Sjpk if (restart) 38345916cd2Sjpk return (0); 38445916cd2Sjpk restart = B_TRUE; 38545916cd2Sjpk } 38645916cd2Sjpk 38745916cd2Sjpk if (is_system_labeled() && 38845916cd2Sjpk (nextport = tsol_next_port(crgetzone(udp->udp_connp->conn_cred), 38945916cd2Sjpk next_priv_port, IPPROTO_UDP, B_FALSE)) != 0) { 39045916cd2Sjpk next_priv_port = nextport; 39145916cd2Sjpk goto retry; 3927c478bd9Sstevel@tonic-gate } 39345916cd2Sjpk 3947c478bd9Sstevel@tonic-gate return (next_priv_port--); 3957c478bd9Sstevel@tonic-gate } 3967c478bd9Sstevel@tonic-gate 3977c478bd9Sstevel@tonic-gate /* UDP bind hash report triggered via the Named Dispatch mechanism. */ 3987c478bd9Sstevel@tonic-gate /* ARGSUSED */ 3997c478bd9Sstevel@tonic-gate static int 4007c478bd9Sstevel@tonic-gate udp_bind_hash_report(queue_t *q, mblk_t *mp, caddr_t cp, cred_t *cr) 4017c478bd9Sstevel@tonic-gate { 4027c478bd9Sstevel@tonic-gate udp_fanout_t *udpf; 4037c478bd9Sstevel@tonic-gate int i; 4047c478bd9Sstevel@tonic-gate zoneid_t zoneid; 405ff550d0eSmasputra conn_t *connp; 406ff550d0eSmasputra udp_t *udp; 407f4b3ec61Sdh udp_stack_t *us; 408ff550d0eSmasputra 409ff550d0eSmasputra connp = Q_TO_CONN(q); 410ff550d0eSmasputra udp = connp->conn_udp; 411f4b3ec61Sdh us = udp->udp_us; 4127c478bd9Sstevel@tonic-gate 4137c478bd9Sstevel@tonic-gate /* Refer to comments in udp_status_report(). */ 414f4b3ec61Sdh if (cr == NULL || secpolicy_ip_config(cr, B_TRUE) != 0) { 415f4b3ec61Sdh if (ddi_get_lbolt() - us->us_last_ndd_get_info_time < 416f4b3ec61Sdh drv_usectohz(us->us_ndd_get_info_interval * 1000)) { 4177c478bd9Sstevel@tonic-gate (void) mi_mpprintf(mp, NDD_TOO_QUICK_MSG); 4187c478bd9Sstevel@tonic-gate return (0); 4197c478bd9Sstevel@tonic-gate } 4207c478bd9Sstevel@tonic-gate } 4217c478bd9Sstevel@tonic-gate if ((mp->b_cont = allocb(ND_MAX_BUF_LEN, BPRI_HI)) == NULL) { 4227c478bd9Sstevel@tonic-gate /* The following may work even if we cannot get a large buf. */ 4237c478bd9Sstevel@tonic-gate (void) mi_mpprintf(mp, NDD_OUT_OF_BUF_MSG); 4247c478bd9Sstevel@tonic-gate return (0); 4257c478bd9Sstevel@tonic-gate } 4267c478bd9Sstevel@tonic-gate 4277c478bd9Sstevel@tonic-gate (void) mi_mpprintf(mp, 4287c478bd9Sstevel@tonic-gate "UDP " MI_COL_HDRPAD_STR 4297c478bd9Sstevel@tonic-gate /* 12345678[89ABCDEF] */ 4307c478bd9Sstevel@tonic-gate " zone lport src addr dest addr port state"); 4317c478bd9Sstevel@tonic-gate /* 1234 12345 xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx 12345 UNBOUND */ 4327c478bd9Sstevel@tonic-gate 433ff550d0eSmasputra zoneid = connp->conn_zoneid; 4347c478bd9Sstevel@tonic-gate 435f4b3ec61Sdh for (i = 0; i < us->us_bind_fanout_size; i++) { 436f4b3ec61Sdh udpf = &us->us_bind_fanout[i]; 4377c478bd9Sstevel@tonic-gate mutex_enter(&udpf->uf_lock); 4387c478bd9Sstevel@tonic-gate 4397c478bd9Sstevel@tonic-gate /* Print the hash index. */ 4407c478bd9Sstevel@tonic-gate udp = udpf->uf_udp; 4417c478bd9Sstevel@tonic-gate if (zoneid != GLOBAL_ZONEID) { 4427c478bd9Sstevel@tonic-gate /* skip to first entry in this zone; might be none */ 4437c478bd9Sstevel@tonic-gate while (udp != NULL && 444ff550d0eSmasputra udp->udp_connp->conn_zoneid != zoneid) 4457c478bd9Sstevel@tonic-gate udp = udp->udp_bind_hash; 4467c478bd9Sstevel@tonic-gate } 4477c478bd9Sstevel@tonic-gate if (udp != NULL) { 4487c478bd9Sstevel@tonic-gate uint_t print_len, buf_len; 4497c478bd9Sstevel@tonic-gate 4507c478bd9Sstevel@tonic-gate buf_len = mp->b_cont->b_datap->db_lim - 4517c478bd9Sstevel@tonic-gate mp->b_cont->b_wptr; 4527c478bd9Sstevel@tonic-gate print_len = snprintf((char *)mp->b_cont->b_wptr, 4537c478bd9Sstevel@tonic-gate buf_len, "%d\n", i); 4547c478bd9Sstevel@tonic-gate if (print_len < buf_len) { 4557c478bd9Sstevel@tonic-gate mp->b_cont->b_wptr += print_len; 4567c478bd9Sstevel@tonic-gate } else { 4577c478bd9Sstevel@tonic-gate mp->b_cont->b_wptr += buf_len; 4587c478bd9Sstevel@tonic-gate } 4597c478bd9Sstevel@tonic-gate for (; udp != NULL; udp = udp->udp_bind_hash) { 4607c478bd9Sstevel@tonic-gate if (zoneid == GLOBAL_ZONEID || 461ff550d0eSmasputra zoneid == udp->udp_connp->conn_zoneid) 4627c478bd9Sstevel@tonic-gate udp_report_item(mp->b_cont, udp); 4637c478bd9Sstevel@tonic-gate } 4647c478bd9Sstevel@tonic-gate } 4657c478bd9Sstevel@tonic-gate mutex_exit(&udpf->uf_lock); 4667c478bd9Sstevel@tonic-gate } 467f4b3ec61Sdh us->us_last_ndd_get_info_time = ddi_get_lbolt(); 4687c478bd9Sstevel@tonic-gate return (0); 4697c478bd9Sstevel@tonic-gate } 4707c478bd9Sstevel@tonic-gate 4717c478bd9Sstevel@tonic-gate /* 4727c478bd9Sstevel@tonic-gate * Hash list removal routine for udp_t structures. 4737c478bd9Sstevel@tonic-gate */ 4747c478bd9Sstevel@tonic-gate static void 4757c478bd9Sstevel@tonic-gate udp_bind_hash_remove(udp_t *udp, boolean_t caller_holds_lock) 4767c478bd9Sstevel@tonic-gate { 4777c478bd9Sstevel@tonic-gate udp_t *udpnext; 4787c478bd9Sstevel@tonic-gate kmutex_t *lockp; 479f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 4807c478bd9Sstevel@tonic-gate 4817c478bd9Sstevel@tonic-gate if (udp->udp_ptpbhn == NULL) 4827c478bd9Sstevel@tonic-gate return; 4837c478bd9Sstevel@tonic-gate 4847c478bd9Sstevel@tonic-gate /* 4857c478bd9Sstevel@tonic-gate * Extract the lock pointer in case there are concurrent 4867c478bd9Sstevel@tonic-gate * hash_remove's for this instance. 4877c478bd9Sstevel@tonic-gate */ 4887c478bd9Sstevel@tonic-gate ASSERT(udp->udp_port != 0); 4897c478bd9Sstevel@tonic-gate if (!caller_holds_lock) { 490f4b3ec61Sdh lockp = &us->us_bind_fanout[UDP_BIND_HASH(udp->udp_port, 491437220cdSdanmcd us->us_bind_fanout_size)].uf_lock; 4927c478bd9Sstevel@tonic-gate ASSERT(lockp != NULL); 4937c478bd9Sstevel@tonic-gate mutex_enter(lockp); 4947c478bd9Sstevel@tonic-gate } 4957c478bd9Sstevel@tonic-gate if (udp->udp_ptpbhn != NULL) { 4967c478bd9Sstevel@tonic-gate udpnext = udp->udp_bind_hash; 4977c478bd9Sstevel@tonic-gate if (udpnext != NULL) { 4987c478bd9Sstevel@tonic-gate udpnext->udp_ptpbhn = udp->udp_ptpbhn; 4997c478bd9Sstevel@tonic-gate udp->udp_bind_hash = NULL; 5007c478bd9Sstevel@tonic-gate } 5017c478bd9Sstevel@tonic-gate *udp->udp_ptpbhn = udpnext; 5027c478bd9Sstevel@tonic-gate udp->udp_ptpbhn = NULL; 5037c478bd9Sstevel@tonic-gate } 5047c478bd9Sstevel@tonic-gate if (!caller_holds_lock) { 5057c478bd9Sstevel@tonic-gate mutex_exit(lockp); 5067c478bd9Sstevel@tonic-gate } 5077c478bd9Sstevel@tonic-gate } 5087c478bd9Sstevel@tonic-gate 5097c478bd9Sstevel@tonic-gate static void 5107c478bd9Sstevel@tonic-gate udp_bind_hash_insert(udp_fanout_t *uf, udp_t *udp) 5117c478bd9Sstevel@tonic-gate { 5127c478bd9Sstevel@tonic-gate udp_t **udpp; 5137c478bd9Sstevel@tonic-gate udp_t *udpnext; 5147c478bd9Sstevel@tonic-gate 5157c478bd9Sstevel@tonic-gate ASSERT(MUTEX_HELD(&uf->uf_lock)); 516fc80c0dfSnordmark ASSERT(udp->udp_ptpbhn == NULL); 5177c478bd9Sstevel@tonic-gate udpp = &uf->uf_udp; 5187c478bd9Sstevel@tonic-gate udpnext = udpp[0]; 5197c478bd9Sstevel@tonic-gate if (udpnext != NULL) { 5207c478bd9Sstevel@tonic-gate /* 5217c478bd9Sstevel@tonic-gate * If the new udp bound to the INADDR_ANY address 5227c478bd9Sstevel@tonic-gate * and the first one in the list is not bound to 5237c478bd9Sstevel@tonic-gate * INADDR_ANY we skip all entries until we find the 5247c478bd9Sstevel@tonic-gate * first one bound to INADDR_ANY. 5257c478bd9Sstevel@tonic-gate * This makes sure that applications binding to a 5267c478bd9Sstevel@tonic-gate * specific address get preference over those binding to 5277c478bd9Sstevel@tonic-gate * INADDR_ANY. 5287c478bd9Sstevel@tonic-gate */ 5297c478bd9Sstevel@tonic-gate if (V6_OR_V4_INADDR_ANY(udp->udp_bound_v6src) && 5307c478bd9Sstevel@tonic-gate !V6_OR_V4_INADDR_ANY(udpnext->udp_bound_v6src)) { 5317c478bd9Sstevel@tonic-gate while ((udpnext = udpp[0]) != NULL && 5327c478bd9Sstevel@tonic-gate !V6_OR_V4_INADDR_ANY( 5337c478bd9Sstevel@tonic-gate udpnext->udp_bound_v6src)) { 5347c478bd9Sstevel@tonic-gate udpp = &(udpnext->udp_bind_hash); 5357c478bd9Sstevel@tonic-gate } 5367c478bd9Sstevel@tonic-gate if (udpnext != NULL) 5377c478bd9Sstevel@tonic-gate udpnext->udp_ptpbhn = &udp->udp_bind_hash; 5387c478bd9Sstevel@tonic-gate } else { 5397c478bd9Sstevel@tonic-gate udpnext->udp_ptpbhn = &udp->udp_bind_hash; 5407c478bd9Sstevel@tonic-gate } 5417c478bd9Sstevel@tonic-gate } 5427c478bd9Sstevel@tonic-gate udp->udp_bind_hash = udpnext; 5437c478bd9Sstevel@tonic-gate udp->udp_ptpbhn = udpp; 5447c478bd9Sstevel@tonic-gate udpp[0] = udp; 5457c478bd9Sstevel@tonic-gate } 5467c478bd9Sstevel@tonic-gate 5477c478bd9Sstevel@tonic-gate /* 5487c478bd9Sstevel@tonic-gate * This routine is called to handle each O_T_BIND_REQ/T_BIND_REQ message 5497c478bd9Sstevel@tonic-gate * passed to udp_wput. 5507c478bd9Sstevel@tonic-gate * It associates a port number and local address with the stream. 5517c478bd9Sstevel@tonic-gate * The O_T_BIND_REQ/T_BIND_REQ is passed downstream to ip with the UDP 5527c478bd9Sstevel@tonic-gate * protocol type (IPPROTO_UDP) placed in the message following the address. 5537c478bd9Sstevel@tonic-gate * A T_BIND_ACK message is passed upstream when ip acknowledges the request. 5547c478bd9Sstevel@tonic-gate * (Called as writer.) 5557c478bd9Sstevel@tonic-gate * 5567c478bd9Sstevel@tonic-gate * Note that UDP over IPv4 and IPv6 sockets can use the same port number 5577c478bd9Sstevel@tonic-gate * without setting SO_REUSEADDR. This is needed so that they 5587c478bd9Sstevel@tonic-gate * can be viewed as two independent transport protocols. 5597c478bd9Sstevel@tonic-gate * However, anonymouns ports are allocated from the same range to avoid 560f4b3ec61Sdh * duplicating the us->us_next_port_to_try. 5617c478bd9Sstevel@tonic-gate */ 5627c478bd9Sstevel@tonic-gate static void 5637c478bd9Sstevel@tonic-gate udp_bind(queue_t *q, mblk_t *mp) 5647c478bd9Sstevel@tonic-gate { 5657c478bd9Sstevel@tonic-gate sin_t *sin; 5667c478bd9Sstevel@tonic-gate sin6_t *sin6; 5677c478bd9Sstevel@tonic-gate mblk_t *mp1; 5687c478bd9Sstevel@tonic-gate in_port_t port; /* Host byte order */ 5697c478bd9Sstevel@tonic-gate in_port_t requested_port; /* Host byte order */ 5707c478bd9Sstevel@tonic-gate struct T_bind_req *tbr; 5717c478bd9Sstevel@tonic-gate int count; 5727c478bd9Sstevel@tonic-gate in6_addr_t v6src; 5737c478bd9Sstevel@tonic-gate boolean_t bind_to_req_port_only; 5747c478bd9Sstevel@tonic-gate int loopmax; 5757c478bd9Sstevel@tonic-gate udp_fanout_t *udpf; 5767c478bd9Sstevel@tonic-gate in_port_t lport; /* Network byte order */ 5777c478bd9Sstevel@tonic-gate zoneid_t zoneid; 578ff550d0eSmasputra conn_t *connp; 579ff550d0eSmasputra udp_t *udp; 58045916cd2Sjpk boolean_t is_inaddr_any; 58145916cd2Sjpk mlp_type_t addrtype, mlptype; 582f4b3ec61Sdh udp_stack_t *us; 5837c478bd9Sstevel@tonic-gate 584ff550d0eSmasputra connp = Q_TO_CONN(q); 585ff550d0eSmasputra udp = connp->conn_udp; 586f4b3ec61Sdh us = udp->udp_us; 5877c478bd9Sstevel@tonic-gate if ((mp->b_wptr - mp->b_rptr) < sizeof (*tbr)) { 5887c478bd9Sstevel@tonic-gate (void) mi_strlog(q, 1, SL_ERROR|SL_TRACE, 5897c478bd9Sstevel@tonic-gate "udp_bind: bad req, len %u", 5907c478bd9Sstevel@tonic-gate (uint_t)(mp->b_wptr - mp->b_rptr)); 5917c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TPROTO, 0); 5927c478bd9Sstevel@tonic-gate return; 5937c478bd9Sstevel@tonic-gate } 5947c478bd9Sstevel@tonic-gate if (udp->udp_state != TS_UNBND) { 5957c478bd9Sstevel@tonic-gate (void) mi_strlog(q, 1, SL_ERROR|SL_TRACE, 5967c478bd9Sstevel@tonic-gate "udp_bind: bad state, %u", udp->udp_state); 5977c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TOUTSTATE, 0); 5987c478bd9Sstevel@tonic-gate return; 5997c478bd9Sstevel@tonic-gate } 6007c478bd9Sstevel@tonic-gate /* 6017c478bd9Sstevel@tonic-gate * Reallocate the message to make sure we have enough room for an 6027c478bd9Sstevel@tonic-gate * address and the protocol type. 6037c478bd9Sstevel@tonic-gate */ 6047c478bd9Sstevel@tonic-gate mp1 = reallocb(mp, sizeof (struct T_bind_ack) + sizeof (sin6_t) + 1, 1); 6057c478bd9Sstevel@tonic-gate if (!mp1) { 6067c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TSYSERR, ENOMEM); 6077c478bd9Sstevel@tonic-gate return; 6087c478bd9Sstevel@tonic-gate } 6097c478bd9Sstevel@tonic-gate 6107c478bd9Sstevel@tonic-gate mp = mp1; 6117c478bd9Sstevel@tonic-gate tbr = (struct T_bind_req *)mp->b_rptr; 6127c478bd9Sstevel@tonic-gate switch (tbr->ADDR_length) { 6137c478bd9Sstevel@tonic-gate case 0: /* Request for a generic port */ 6147c478bd9Sstevel@tonic-gate tbr->ADDR_offset = sizeof (struct T_bind_req); 6157c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) { 6167c478bd9Sstevel@tonic-gate tbr->ADDR_length = sizeof (sin_t); 6177c478bd9Sstevel@tonic-gate sin = (sin_t *)&tbr[1]; 6187c478bd9Sstevel@tonic-gate *sin = sin_null; 6197c478bd9Sstevel@tonic-gate sin->sin_family = AF_INET; 6207c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)&sin[1]; 6217c478bd9Sstevel@tonic-gate } else { 6227c478bd9Sstevel@tonic-gate ASSERT(udp->udp_family == AF_INET6); 6237c478bd9Sstevel@tonic-gate tbr->ADDR_length = sizeof (sin6_t); 6247c478bd9Sstevel@tonic-gate sin6 = (sin6_t *)&tbr[1]; 6257c478bd9Sstevel@tonic-gate *sin6 = sin6_null; 6267c478bd9Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 6277c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)&sin6[1]; 6287c478bd9Sstevel@tonic-gate } 6297c478bd9Sstevel@tonic-gate port = 0; 6307c478bd9Sstevel@tonic-gate break; 6317c478bd9Sstevel@tonic-gate 6327c478bd9Sstevel@tonic-gate case sizeof (sin_t): /* Complete IPv4 address */ 6337c478bd9Sstevel@tonic-gate sin = (sin_t *)mi_offset_param(mp, tbr->ADDR_offset, 6347c478bd9Sstevel@tonic-gate sizeof (sin_t)); 6357c478bd9Sstevel@tonic-gate if (sin == NULL || !OK_32PTR((char *)sin)) { 6367c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TSYSERR, EINVAL); 6377c478bd9Sstevel@tonic-gate return; 6387c478bd9Sstevel@tonic-gate } 6397c478bd9Sstevel@tonic-gate if (udp->udp_family != AF_INET || 6407c478bd9Sstevel@tonic-gate sin->sin_family != AF_INET) { 6417c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TSYSERR, EAFNOSUPPORT); 6427c478bd9Sstevel@tonic-gate return; 6437c478bd9Sstevel@tonic-gate } 6447c478bd9Sstevel@tonic-gate port = ntohs(sin->sin_port); 6457c478bd9Sstevel@tonic-gate break; 6467c478bd9Sstevel@tonic-gate 6477c478bd9Sstevel@tonic-gate case sizeof (sin6_t): /* complete IPv6 address */ 6487c478bd9Sstevel@tonic-gate sin6 = (sin6_t *)mi_offset_param(mp, tbr->ADDR_offset, 6497c478bd9Sstevel@tonic-gate sizeof (sin6_t)); 6507c478bd9Sstevel@tonic-gate if (sin6 == NULL || !OK_32PTR((char *)sin6)) { 6517c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TSYSERR, EINVAL); 6527c478bd9Sstevel@tonic-gate return; 6537c478bd9Sstevel@tonic-gate } 6547c478bd9Sstevel@tonic-gate if (udp->udp_family != AF_INET6 || 6557c478bd9Sstevel@tonic-gate sin6->sin6_family != AF_INET6) { 6567c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TSYSERR, EAFNOSUPPORT); 6577c478bd9Sstevel@tonic-gate return; 6587c478bd9Sstevel@tonic-gate } 6597c478bd9Sstevel@tonic-gate port = ntohs(sin6->sin6_port); 6607c478bd9Sstevel@tonic-gate break; 6617c478bd9Sstevel@tonic-gate 6627c478bd9Sstevel@tonic-gate default: /* Invalid request */ 6637c478bd9Sstevel@tonic-gate (void) mi_strlog(q, 1, SL_ERROR|SL_TRACE, 6647c478bd9Sstevel@tonic-gate "udp_bind: bad ADDR_length length %u", tbr->ADDR_length); 6657c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TBADADDR, 0); 6667c478bd9Sstevel@tonic-gate return; 6677c478bd9Sstevel@tonic-gate } 6687c478bd9Sstevel@tonic-gate 6697c478bd9Sstevel@tonic-gate requested_port = port; 6707c478bd9Sstevel@tonic-gate 6717c478bd9Sstevel@tonic-gate if (requested_port == 0 || tbr->PRIM_type == O_T_BIND_REQ) 6727c478bd9Sstevel@tonic-gate bind_to_req_port_only = B_FALSE; 6737c478bd9Sstevel@tonic-gate else /* T_BIND_REQ and requested_port != 0 */ 6747c478bd9Sstevel@tonic-gate bind_to_req_port_only = B_TRUE; 6757c478bd9Sstevel@tonic-gate 6767c478bd9Sstevel@tonic-gate if (requested_port == 0) { 6777c478bd9Sstevel@tonic-gate /* 6787c478bd9Sstevel@tonic-gate * If the application passed in zero for the port number, it 6797c478bd9Sstevel@tonic-gate * doesn't care which port number we bind to. Get one in the 6807c478bd9Sstevel@tonic-gate * valid range. 6817c478bd9Sstevel@tonic-gate */ 6827c478bd9Sstevel@tonic-gate if (udp->udp_anon_priv_bind) { 68345916cd2Sjpk port = udp_get_next_priv_port(udp); 6847c478bd9Sstevel@tonic-gate } else { 68545916cd2Sjpk port = udp_update_next_port(udp, 686f4b3ec61Sdh us->us_next_port_to_try, B_TRUE); 6877c478bd9Sstevel@tonic-gate } 6887c478bd9Sstevel@tonic-gate } else { 6897c478bd9Sstevel@tonic-gate /* 6907c478bd9Sstevel@tonic-gate * If the port is in the well-known privileged range, 6917c478bd9Sstevel@tonic-gate * make sure the caller was privileged. 6927c478bd9Sstevel@tonic-gate */ 6937c478bd9Sstevel@tonic-gate int i; 6947c478bd9Sstevel@tonic-gate boolean_t priv = B_FALSE; 6957c478bd9Sstevel@tonic-gate 696f4b3ec61Sdh if (port < us->us_smallest_nonpriv_port) { 6977c478bd9Sstevel@tonic-gate priv = B_TRUE; 6987c478bd9Sstevel@tonic-gate } else { 699f4b3ec61Sdh for (i = 0; i < us->us_num_epriv_ports; i++) { 700f4b3ec61Sdh if (port == us->us_epriv_ports[i]) { 7017c478bd9Sstevel@tonic-gate priv = B_TRUE; 7027c478bd9Sstevel@tonic-gate break; 7037c478bd9Sstevel@tonic-gate } 7047c478bd9Sstevel@tonic-gate } 7057c478bd9Sstevel@tonic-gate } 7067c478bd9Sstevel@tonic-gate 7077c478bd9Sstevel@tonic-gate if (priv) { 708ff550d0eSmasputra cred_t *cr = DB_CREDDEF(mp, connp->conn_cred); 7097c478bd9Sstevel@tonic-gate 7107c478bd9Sstevel@tonic-gate if (secpolicy_net_privaddr(cr, port) != 0) { 7117c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TACCES, 0); 7127c478bd9Sstevel@tonic-gate return; 7137c478bd9Sstevel@tonic-gate } 7147c478bd9Sstevel@tonic-gate } 7157c478bd9Sstevel@tonic-gate } 7167c478bd9Sstevel@tonic-gate 71745916cd2Sjpk if (port == 0) { 71845916cd2Sjpk udp_err_ack(q, mp, TNOADDR, 0); 71945916cd2Sjpk return; 72045916cd2Sjpk } 72145916cd2Sjpk 722fc80c0dfSnordmark /* 723fc80c0dfSnordmark * The state must be TS_UNBND. TPI mandates that users must send 724fc80c0dfSnordmark * TPI primitives only 1 at a time and wait for the response before 725fc80c0dfSnordmark * sending the next primitive. 726fc80c0dfSnordmark */ 727fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 728fc80c0dfSnordmark if (udp->udp_state != TS_UNBND || udp->udp_pending_op != -1) { 729fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 730fc80c0dfSnordmark (void) mi_strlog(q, 1, SL_ERROR|SL_TRACE, 731fc80c0dfSnordmark "udp_bind: bad state, %u", udp->udp_state); 732fc80c0dfSnordmark udp_err_ack(q, mp, TOUTSTATE, 0); 733fc80c0dfSnordmark return; 734fc80c0dfSnordmark } 735fc80c0dfSnordmark udp->udp_pending_op = tbr->PRIM_type; 7367c478bd9Sstevel@tonic-gate /* 7377c478bd9Sstevel@tonic-gate * Copy the source address into our udp structure. This address 7387c478bd9Sstevel@tonic-gate * may still be zero; if so, IP will fill in the correct address 739fc80c0dfSnordmark * each time an outbound packet is passed to it. Since the udp is 740fc80c0dfSnordmark * not yet in the bind hash list, we don't grab the uf_lock to 741fc80c0dfSnordmark * change udp_ipversion 7427c478bd9Sstevel@tonic-gate */ 7437c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) { 7447c478bd9Sstevel@tonic-gate ASSERT(sin != NULL); 7457c478bd9Sstevel@tonic-gate ASSERT(udp->udp_ipversion == IPV4_VERSION); 7467c478bd9Sstevel@tonic-gate udp->udp_max_hdr_len = IP_SIMPLE_HDR_LENGTH + UDPH_SIZE + 7477c478bd9Sstevel@tonic-gate udp->udp_ip_snd_options_len; 7487c478bd9Sstevel@tonic-gate IN6_IPADDR_TO_V4MAPPED(sin->sin_addr.s_addr, &v6src); 7497c478bd9Sstevel@tonic-gate } else { 7507c478bd9Sstevel@tonic-gate ASSERT(sin6 != NULL); 7517c478bd9Sstevel@tonic-gate v6src = sin6->sin6_addr; 7527c478bd9Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED(&v6src)) { 753fc80c0dfSnordmark /* 754fc80c0dfSnordmark * no need to hold the uf_lock to set the udp_ipversion 755fc80c0dfSnordmark * since we are not yet in the fanout list 756fc80c0dfSnordmark */ 7577c478bd9Sstevel@tonic-gate udp->udp_ipversion = IPV4_VERSION; 7587c478bd9Sstevel@tonic-gate udp->udp_max_hdr_len = IP_SIMPLE_HDR_LENGTH + 7597c478bd9Sstevel@tonic-gate UDPH_SIZE + udp->udp_ip_snd_options_len; 7607c478bd9Sstevel@tonic-gate } else { 7617c478bd9Sstevel@tonic-gate udp->udp_ipversion = IPV6_VERSION; 7627c478bd9Sstevel@tonic-gate udp->udp_max_hdr_len = udp->udp_sticky_hdrs_len; 7637c478bd9Sstevel@tonic-gate } 7647c478bd9Sstevel@tonic-gate } 7657c478bd9Sstevel@tonic-gate 7667c478bd9Sstevel@tonic-gate /* 7677c478bd9Sstevel@tonic-gate * If udp_reuseaddr is not set, then we have to make sure that 7687c478bd9Sstevel@tonic-gate * the IP address and port number the application requested 7697c478bd9Sstevel@tonic-gate * (or we selected for the application) is not being used by 7707c478bd9Sstevel@tonic-gate * another stream. If another stream is already using the 7717c478bd9Sstevel@tonic-gate * requested IP address and port, the behavior depends on 7727c478bd9Sstevel@tonic-gate * "bind_to_req_port_only". If set the bind fails; otherwise we 7737c478bd9Sstevel@tonic-gate * search for any an unused port to bind to the the stream. 7747c478bd9Sstevel@tonic-gate * 7757c478bd9Sstevel@tonic-gate * As per the BSD semantics, as modified by the Deering multicast 7767c478bd9Sstevel@tonic-gate * changes, if udp_reuseaddr is set, then we allow multiple binds 7777c478bd9Sstevel@tonic-gate * to the same port independent of the local IP address. 7787c478bd9Sstevel@tonic-gate * 7797c478bd9Sstevel@tonic-gate * This is slightly different than in SunOS 4.X which did not 7807c478bd9Sstevel@tonic-gate * support IP multicast. Note that the change implemented by the 7817c478bd9Sstevel@tonic-gate * Deering multicast code effects all binds - not only binding 7827c478bd9Sstevel@tonic-gate * to IP multicast addresses. 7837c478bd9Sstevel@tonic-gate * 7847c478bd9Sstevel@tonic-gate * Note that when binding to port zero we ignore SO_REUSEADDR in 7857c478bd9Sstevel@tonic-gate * order to guarantee a unique port. 7867c478bd9Sstevel@tonic-gate */ 7877c478bd9Sstevel@tonic-gate 7887c478bd9Sstevel@tonic-gate count = 0; 7897c478bd9Sstevel@tonic-gate if (udp->udp_anon_priv_bind) { 790f4b3ec61Sdh /* 791f4b3ec61Sdh * loopmax = (IPPORT_RESERVED-1) - 792f4b3ec61Sdh * us->us_min_anonpriv_port + 1 793f4b3ec61Sdh */ 794f4b3ec61Sdh loopmax = IPPORT_RESERVED - us->us_min_anonpriv_port; 7957c478bd9Sstevel@tonic-gate } else { 796f4b3ec61Sdh loopmax = us->us_largest_anon_port - 797f4b3ec61Sdh us->us_smallest_anon_port + 1; 7987c478bd9Sstevel@tonic-gate } 7997c478bd9Sstevel@tonic-gate 80045916cd2Sjpk is_inaddr_any = V6_OR_V4_INADDR_ANY(v6src); 801ff550d0eSmasputra zoneid = connp->conn_zoneid; 80245916cd2Sjpk 8037c478bd9Sstevel@tonic-gate for (;;) { 8047c478bd9Sstevel@tonic-gate udp_t *udp1; 8057c478bd9Sstevel@tonic-gate boolean_t found_exclbind = B_FALSE; 8067c478bd9Sstevel@tonic-gate 8077c478bd9Sstevel@tonic-gate /* 8087c478bd9Sstevel@tonic-gate * Walk through the list of udp streams bound to 8097c478bd9Sstevel@tonic-gate * requested port with the same IP address. 8107c478bd9Sstevel@tonic-gate */ 8117c478bd9Sstevel@tonic-gate lport = htons(port); 812f4b3ec61Sdh udpf = &us->us_bind_fanout[UDP_BIND_HASH(lport, 813f4b3ec61Sdh us->us_bind_fanout_size)]; 8147c478bd9Sstevel@tonic-gate mutex_enter(&udpf->uf_lock); 8157c478bd9Sstevel@tonic-gate for (udp1 = udpf->uf_udp; udp1 != NULL; 8167c478bd9Sstevel@tonic-gate udp1 = udp1->udp_bind_hash) { 81745916cd2Sjpk if (lport != udp1->udp_port) 81845916cd2Sjpk continue; 81945916cd2Sjpk 82045916cd2Sjpk /* 82145916cd2Sjpk * On a labeled system, we must treat bindings to ports 82245916cd2Sjpk * on shared IP addresses by sockets with MAC exemption 82345916cd2Sjpk * privilege as being in all zones, as there's 82445916cd2Sjpk * otherwise no way to identify the right receiver. 82545916cd2Sjpk */ 82655e77fafSrk if (!(IPCL_ZONE_MATCH(udp1->udp_connp, zoneid) || 82755e77fafSrk IPCL_ZONE_MATCH(connp, 82855e77fafSrk udp1->udp_connp->conn_zoneid)) && 82945916cd2Sjpk !udp->udp_mac_exempt && !udp1->udp_mac_exempt) 8307c478bd9Sstevel@tonic-gate continue; 8317c478bd9Sstevel@tonic-gate 8327c478bd9Sstevel@tonic-gate /* 8337c478bd9Sstevel@tonic-gate * If UDP_EXCLBIND is set for either the bound or 8347c478bd9Sstevel@tonic-gate * binding endpoint, the semantics of bind 8357c478bd9Sstevel@tonic-gate * is changed according to the following chart. 8367c478bd9Sstevel@tonic-gate * 8377c478bd9Sstevel@tonic-gate * spec = specified address (v4 or v6) 8387c478bd9Sstevel@tonic-gate * unspec = unspecified address (v4 or v6) 8397c478bd9Sstevel@tonic-gate * A = specified addresses are different for endpoints 8407c478bd9Sstevel@tonic-gate * 8417c478bd9Sstevel@tonic-gate * bound bind to allowed? 8427c478bd9Sstevel@tonic-gate * ------------------------------------- 8437c478bd9Sstevel@tonic-gate * unspec unspec no 8447c478bd9Sstevel@tonic-gate * unspec spec no 8457c478bd9Sstevel@tonic-gate * spec unspec no 8467c478bd9Sstevel@tonic-gate * spec spec yes if A 84745916cd2Sjpk * 84845916cd2Sjpk * For labeled systems, SO_MAC_EXEMPT behaves the same 84945916cd2Sjpk * as UDP_EXCLBIND, except that zoneid is ignored. 8507c478bd9Sstevel@tonic-gate */ 85145916cd2Sjpk if (udp1->udp_exclbind || udp->udp_exclbind || 85245916cd2Sjpk udp1->udp_mac_exempt || udp->udp_mac_exempt) { 8537c478bd9Sstevel@tonic-gate if (V6_OR_V4_INADDR_ANY( 8547c478bd9Sstevel@tonic-gate udp1->udp_bound_v6src) || 8557c478bd9Sstevel@tonic-gate is_inaddr_any || 8567c478bd9Sstevel@tonic-gate IN6_ARE_ADDR_EQUAL(&udp1->udp_bound_v6src, 8577c478bd9Sstevel@tonic-gate &v6src)) { 8587c478bd9Sstevel@tonic-gate found_exclbind = B_TRUE; 8597c478bd9Sstevel@tonic-gate break; 8607c478bd9Sstevel@tonic-gate } 8617c478bd9Sstevel@tonic-gate continue; 8627c478bd9Sstevel@tonic-gate } 8637c478bd9Sstevel@tonic-gate 8647c478bd9Sstevel@tonic-gate /* 8657c478bd9Sstevel@tonic-gate * Check ipversion to allow IPv4 and IPv6 sockets to 866738d543bSdduvall * have disjoint port number spaces. 8677c478bd9Sstevel@tonic-gate */ 868f952bcd5Sse if (udp->udp_ipversion != udp1->udp_ipversion) { 869f952bcd5Sse 870f952bcd5Sse /* 871f952bcd5Sse * On the first time through the loop, if the 872f952bcd5Sse * the user intentionally specified a 873f952bcd5Sse * particular port number, then ignore any 874f952bcd5Sse * bindings of the other protocol that may 875f952bcd5Sse * conflict. This allows the user to bind IPv6 876f952bcd5Sse * alone and get both v4 and v6, or bind both 877f952bcd5Sse * both and get each seperately. On subsequent 878f952bcd5Sse * times through the loop, we're checking a 879f952bcd5Sse * port that we chose (not the user) and thus 880f952bcd5Sse * we do not allow casual duplicate bindings. 881f952bcd5Sse */ 882f952bcd5Sse if (count == 0 && requested_port != 0) 883f952bcd5Sse continue; 884f952bcd5Sse } 8857c478bd9Sstevel@tonic-gate 8867c478bd9Sstevel@tonic-gate /* 8877c478bd9Sstevel@tonic-gate * No difference depending on SO_REUSEADDR. 8887c478bd9Sstevel@tonic-gate * 8897c478bd9Sstevel@tonic-gate * If existing port is bound to a 8907c478bd9Sstevel@tonic-gate * non-wildcard IP address and 8917c478bd9Sstevel@tonic-gate * the requesting stream is bound to 8927c478bd9Sstevel@tonic-gate * a distinct different IP addresses 8937c478bd9Sstevel@tonic-gate * (non-wildcard, also), keep going. 8947c478bd9Sstevel@tonic-gate */ 8957c478bd9Sstevel@tonic-gate if (!is_inaddr_any && 8967c478bd9Sstevel@tonic-gate !V6_OR_V4_INADDR_ANY(udp1->udp_bound_v6src) && 8977c478bd9Sstevel@tonic-gate !IN6_ARE_ADDR_EQUAL(&udp1->udp_bound_v6src, 8987c478bd9Sstevel@tonic-gate &v6src)) { 8997c478bd9Sstevel@tonic-gate continue; 9007c478bd9Sstevel@tonic-gate } 9017c478bd9Sstevel@tonic-gate break; 9027c478bd9Sstevel@tonic-gate } 9037c478bd9Sstevel@tonic-gate 9047c478bd9Sstevel@tonic-gate if (!found_exclbind && 9057c478bd9Sstevel@tonic-gate (udp->udp_reuseaddr && requested_port != 0)) { 9067c478bd9Sstevel@tonic-gate break; 9077c478bd9Sstevel@tonic-gate } 9087c478bd9Sstevel@tonic-gate 9097c478bd9Sstevel@tonic-gate if (udp1 == NULL) { 9107c478bd9Sstevel@tonic-gate /* 9117c478bd9Sstevel@tonic-gate * No other stream has this IP address 9127c478bd9Sstevel@tonic-gate * and port number. We can use it. 9137c478bd9Sstevel@tonic-gate */ 9147c478bd9Sstevel@tonic-gate break; 9157c478bd9Sstevel@tonic-gate } 9167c478bd9Sstevel@tonic-gate mutex_exit(&udpf->uf_lock); 9177c478bd9Sstevel@tonic-gate if (bind_to_req_port_only) { 9187c478bd9Sstevel@tonic-gate /* 9197c478bd9Sstevel@tonic-gate * We get here only when requested port 9207c478bd9Sstevel@tonic-gate * is bound (and only first of the for() 9217c478bd9Sstevel@tonic-gate * loop iteration). 9227c478bd9Sstevel@tonic-gate * 9237c478bd9Sstevel@tonic-gate * The semantics of this bind request 9247c478bd9Sstevel@tonic-gate * require it to fail so we return from 9257c478bd9Sstevel@tonic-gate * the routine (and exit the loop). 9267c478bd9Sstevel@tonic-gate * 9277c478bd9Sstevel@tonic-gate */ 928fc80c0dfSnordmark udp->udp_pending_op = -1; 929fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 9307c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TADDRBUSY, 0); 9317c478bd9Sstevel@tonic-gate return; 9327c478bd9Sstevel@tonic-gate } 9337c478bd9Sstevel@tonic-gate 9347c478bd9Sstevel@tonic-gate if (udp->udp_anon_priv_bind) { 93545916cd2Sjpk port = udp_get_next_priv_port(udp); 9367c478bd9Sstevel@tonic-gate } else { 9377c478bd9Sstevel@tonic-gate if ((count == 0) && (requested_port != 0)) { 9387c478bd9Sstevel@tonic-gate /* 9397c478bd9Sstevel@tonic-gate * If the application wants us to find 9407c478bd9Sstevel@tonic-gate * a port, get one to start with. Set 9417c478bd9Sstevel@tonic-gate * requested_port to 0, so that we will 942f4b3ec61Sdh * update us->us_next_port_to_try below. 9437c478bd9Sstevel@tonic-gate */ 94445916cd2Sjpk port = udp_update_next_port(udp, 945f4b3ec61Sdh us->us_next_port_to_try, B_TRUE); 9467c478bd9Sstevel@tonic-gate requested_port = 0; 9477c478bd9Sstevel@tonic-gate } else { 94845916cd2Sjpk port = udp_update_next_port(udp, port + 1, 94945916cd2Sjpk B_FALSE); 9507c478bd9Sstevel@tonic-gate } 9517c478bd9Sstevel@tonic-gate } 9527c478bd9Sstevel@tonic-gate 95345916cd2Sjpk if (port == 0 || ++count >= loopmax) { 9547c478bd9Sstevel@tonic-gate /* 9557c478bd9Sstevel@tonic-gate * We've tried every possible port number and 9567c478bd9Sstevel@tonic-gate * there are none available, so send an error 9577c478bd9Sstevel@tonic-gate * to the user. 9587c478bd9Sstevel@tonic-gate */ 959fc80c0dfSnordmark udp->udp_pending_op = -1; 960fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 9617c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TNOADDR, 0); 9627c478bd9Sstevel@tonic-gate return; 9637c478bd9Sstevel@tonic-gate } 9647c478bd9Sstevel@tonic-gate } 9657c478bd9Sstevel@tonic-gate 9667c478bd9Sstevel@tonic-gate /* 9677c478bd9Sstevel@tonic-gate * Copy the source address into our udp structure. This address 9687c478bd9Sstevel@tonic-gate * may still be zero; if so, ip will fill in the correct address 9697c478bd9Sstevel@tonic-gate * each time an outbound packet is passed to it. 970fc80c0dfSnordmark * If we are binding to a broadcast or multicast address then 971fc80c0dfSnordmark * udp_bind_ack will clear the source address when it receives 972fc80c0dfSnordmark * the T_BIND_ACK. 9737c478bd9Sstevel@tonic-gate */ 9747c478bd9Sstevel@tonic-gate udp->udp_v6src = udp->udp_bound_v6src = v6src; 9757c478bd9Sstevel@tonic-gate udp->udp_port = lport; 9767c478bd9Sstevel@tonic-gate /* 9777c478bd9Sstevel@tonic-gate * Now reset the the next anonymous port if the application requested 9787c478bd9Sstevel@tonic-gate * an anonymous port, or we handed out the next anonymous port. 9797c478bd9Sstevel@tonic-gate */ 9807c478bd9Sstevel@tonic-gate if ((requested_port == 0) && (!udp->udp_anon_priv_bind)) { 981f4b3ec61Sdh us->us_next_port_to_try = port + 1; 9827c478bd9Sstevel@tonic-gate } 9837c478bd9Sstevel@tonic-gate 9847c478bd9Sstevel@tonic-gate /* Initialize the O_T_BIND_REQ/T_BIND_REQ for ip. */ 9857c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) { 9867c478bd9Sstevel@tonic-gate sin->sin_port = udp->udp_port; 9877c478bd9Sstevel@tonic-gate } else { 9887c478bd9Sstevel@tonic-gate int error; 9897c478bd9Sstevel@tonic-gate 9907c478bd9Sstevel@tonic-gate sin6->sin6_port = udp->udp_port; 9917c478bd9Sstevel@tonic-gate /* Rebuild the header template */ 992fc80c0dfSnordmark error = udp_build_hdrs(udp); 9937c478bd9Sstevel@tonic-gate if (error != 0) { 994fc80c0dfSnordmark udp->udp_pending_op = -1; 995fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 9967c478bd9Sstevel@tonic-gate mutex_exit(&udpf->uf_lock); 9977c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TSYSERR, error); 9987c478bd9Sstevel@tonic-gate return; 9997c478bd9Sstevel@tonic-gate } 10007c478bd9Sstevel@tonic-gate } 10017c478bd9Sstevel@tonic-gate udp->udp_state = TS_IDLE; 10027c478bd9Sstevel@tonic-gate udp_bind_hash_insert(udpf, udp); 10037c478bd9Sstevel@tonic-gate mutex_exit(&udpf->uf_lock); 1004fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 10057c478bd9Sstevel@tonic-gate 10067c478bd9Sstevel@tonic-gate if (cl_inet_bind) { 10077c478bd9Sstevel@tonic-gate /* 10087c478bd9Sstevel@tonic-gate * Running in cluster mode - register bind information 10097c478bd9Sstevel@tonic-gate */ 10107c478bd9Sstevel@tonic-gate if (udp->udp_ipversion == IPV4_VERSION) { 10117c478bd9Sstevel@tonic-gate (*cl_inet_bind)(IPPROTO_UDP, AF_INET, 10127c478bd9Sstevel@tonic-gate (uint8_t *)(&V4_PART_OF_V6(udp->udp_v6src)), 10137c478bd9Sstevel@tonic-gate (in_port_t)udp->udp_port); 10147c478bd9Sstevel@tonic-gate } else { 10157c478bd9Sstevel@tonic-gate (*cl_inet_bind)(IPPROTO_UDP, AF_INET6, 10167c478bd9Sstevel@tonic-gate (uint8_t *)&(udp->udp_v6src), 10177c478bd9Sstevel@tonic-gate (in_port_t)udp->udp_port); 10187c478bd9Sstevel@tonic-gate } 10197c478bd9Sstevel@tonic-gate 10207c478bd9Sstevel@tonic-gate } 10217c478bd9Sstevel@tonic-gate 102245916cd2Sjpk connp->conn_anon_port = (is_system_labeled() && requested_port == 0); 102345916cd2Sjpk if (is_system_labeled() && (!connp->conn_anon_port || 102445916cd2Sjpk connp->conn_anon_mlp)) { 102545916cd2Sjpk uint16_t mlpport; 102645916cd2Sjpk cred_t *cr = connp->conn_cred; 102745916cd2Sjpk zone_t *zone; 102845916cd2Sjpk 1029f4b3ec61Sdh zone = crgetzone(cr); 103045916cd2Sjpk connp->conn_mlp_type = udp->udp_recvucred ? mlptBoth : 103145916cd2Sjpk mlptSingle; 1032f4b3ec61Sdh addrtype = tsol_mlp_addr_type(zone->zone_id, IPV6_VERSION, 1033fc80c0dfSnordmark &v6src, us->us_netstack->netstack_ip); 103445916cd2Sjpk if (addrtype == mlptSingle) { 1035fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 1036fc80c0dfSnordmark udp->udp_pending_op = -1; 1037fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 103845916cd2Sjpk udp_err_ack(q, mp, TNOADDR, 0); 103945916cd2Sjpk connp->conn_anon_port = B_FALSE; 104045916cd2Sjpk connp->conn_mlp_type = mlptSingle; 104145916cd2Sjpk return; 104245916cd2Sjpk } 104345916cd2Sjpk mlpport = connp->conn_anon_port ? PMAPPORT : port; 104445916cd2Sjpk mlptype = tsol_mlp_port_type(zone, IPPROTO_UDP, mlpport, 104545916cd2Sjpk addrtype); 104645916cd2Sjpk if (mlptype != mlptSingle && 104745916cd2Sjpk (connp->conn_mlp_type == mlptSingle || 104845916cd2Sjpk secpolicy_net_bindmlp(cr) != 0)) { 104945916cd2Sjpk if (udp->udp_debug) { 105045916cd2Sjpk (void) strlog(UDP_MOD_ID, 0, 1, 105145916cd2Sjpk SL_ERROR|SL_TRACE, 105245916cd2Sjpk "udp_bind: no priv for multilevel port %d", 105345916cd2Sjpk mlpport); 105445916cd2Sjpk } 1055fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 1056fc80c0dfSnordmark udp->udp_pending_op = -1; 1057fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 105845916cd2Sjpk udp_err_ack(q, mp, TACCES, 0); 105945916cd2Sjpk connp->conn_anon_port = B_FALSE; 106045916cd2Sjpk connp->conn_mlp_type = mlptSingle; 106145916cd2Sjpk return; 106245916cd2Sjpk } 106345916cd2Sjpk 106445916cd2Sjpk /* 106545916cd2Sjpk * If we're specifically binding a shared IP address and the 106645916cd2Sjpk * port is MLP on shared addresses, then check to see if this 106745916cd2Sjpk * zone actually owns the MLP. Reject if not. 106845916cd2Sjpk */ 106945916cd2Sjpk if (mlptype == mlptShared && addrtype == mlptShared) { 1070f4b3ec61Sdh /* 1071f4b3ec61Sdh * No need to handle exclusive-stack zones since 1072f4b3ec61Sdh * ALL_ZONES only applies to the shared stack. 1073f4b3ec61Sdh */ 107445916cd2Sjpk zoneid_t mlpzone; 107545916cd2Sjpk 107645916cd2Sjpk mlpzone = tsol_mlp_findzone(IPPROTO_UDP, 107745916cd2Sjpk htons(mlpport)); 107845916cd2Sjpk if (connp->conn_zoneid != mlpzone) { 107945916cd2Sjpk if (udp->udp_debug) { 108045916cd2Sjpk (void) strlog(UDP_MOD_ID, 0, 1, 108145916cd2Sjpk SL_ERROR|SL_TRACE, 108245916cd2Sjpk "udp_bind: attempt to bind port " 108345916cd2Sjpk "%d on shared addr in zone %d " 108445916cd2Sjpk "(should be %d)", 108545916cd2Sjpk mlpport, connp->conn_zoneid, 108645916cd2Sjpk mlpzone); 108745916cd2Sjpk } 1088fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 1089fc80c0dfSnordmark udp->udp_pending_op = -1; 1090fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 109145916cd2Sjpk udp_err_ack(q, mp, TACCES, 0); 109245916cd2Sjpk connp->conn_anon_port = B_FALSE; 109345916cd2Sjpk connp->conn_mlp_type = mlptSingle; 109445916cd2Sjpk return; 109545916cd2Sjpk } 109645916cd2Sjpk } 109745916cd2Sjpk if (connp->conn_anon_port) { 109845916cd2Sjpk int error; 109945916cd2Sjpk 110045916cd2Sjpk error = tsol_mlp_anon(zone, mlptype, connp->conn_ulp, 110145916cd2Sjpk port, B_TRUE); 110245916cd2Sjpk if (error != 0) { 110345916cd2Sjpk if (udp->udp_debug) { 110445916cd2Sjpk (void) strlog(UDP_MOD_ID, 0, 1, 110545916cd2Sjpk SL_ERROR|SL_TRACE, 110645916cd2Sjpk "udp_bind: cannot establish anon " 110745916cd2Sjpk "MLP for port %d", port); 110845916cd2Sjpk } 1109fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 1110fc80c0dfSnordmark udp->udp_pending_op = -1; 1111fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 111245916cd2Sjpk udp_err_ack(q, mp, TACCES, 0); 111345916cd2Sjpk connp->conn_anon_port = B_FALSE; 111445916cd2Sjpk connp->conn_mlp_type = mlptSingle; 111545916cd2Sjpk return; 111645916cd2Sjpk } 111745916cd2Sjpk } 111845916cd2Sjpk connp->conn_mlp_type = mlptype; 111945916cd2Sjpk } 112045916cd2Sjpk 11217c478bd9Sstevel@tonic-gate /* Pass the protocol number in the message following the address. */ 11227c478bd9Sstevel@tonic-gate *mp->b_wptr++ = IPPROTO_UDP; 11237c478bd9Sstevel@tonic-gate if (!V6_OR_V4_INADDR_ANY(udp->udp_v6src)) { 11247c478bd9Sstevel@tonic-gate /* 11257c478bd9Sstevel@tonic-gate * Append a request for an IRE if udp_v6src not 11267c478bd9Sstevel@tonic-gate * zero (IPv4 - INADDR_ANY, or IPv6 - all-zeroes address). 11277c478bd9Sstevel@tonic-gate */ 11287c478bd9Sstevel@tonic-gate mp->b_cont = allocb(sizeof (ire_t), BPRI_HI); 11297c478bd9Sstevel@tonic-gate if (!mp->b_cont) { 1130fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 1131fc80c0dfSnordmark udp->udp_pending_op = -1; 1132fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 11337c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TSYSERR, ENOMEM); 11347c478bd9Sstevel@tonic-gate return; 11357c478bd9Sstevel@tonic-gate } 11367c478bd9Sstevel@tonic-gate mp->b_cont->b_wptr += sizeof (ire_t); 11377c478bd9Sstevel@tonic-gate mp->b_cont->b_datap->db_type = IRE_DB_REQ_TYPE; 11387c478bd9Sstevel@tonic-gate } 1139ff550d0eSmasputra if (udp->udp_family == AF_INET6) 1140ff550d0eSmasputra mp = ip_bind_v6(q, mp, connp, NULL); 1141ff550d0eSmasputra else 1142ff550d0eSmasputra mp = ip_bind_v4(q, mp, connp); 1143ff550d0eSmasputra 1144fc80c0dfSnordmark /* The above return NULL if the bind needs to be deferred */ 1145ff550d0eSmasputra if (mp != NULL) 1146fc80c0dfSnordmark udp_bind_result(connp, mp); 1147ff550d0eSmasputra else 1148ff550d0eSmasputra CONN_INC_REF(connp); 1149ff550d0eSmasputra } 1150ff550d0eSmasputra 1151ff550d0eSmasputra /* 1152fc80c0dfSnordmark * This is called from ip_wput_nondata to handle the results of a 1153fc80c0dfSnordmark * deferred UDP bind. It is called once the bind has been completed. 1154ff550d0eSmasputra */ 1155fc80c0dfSnordmark void 1156fc80c0dfSnordmark udp_resume_bind(conn_t *connp, mblk_t *mp) 1157ff550d0eSmasputra { 1158ff550d0eSmasputra ASSERT(connp != NULL && IPCL_IS_UDP(connp)); 1159ff550d0eSmasputra 1160fc80c0dfSnordmark udp_bind_result(connp, mp); 1161ff550d0eSmasputra 1162ff550d0eSmasputra CONN_OPER_PENDING_DONE(connp); 11637c478bd9Sstevel@tonic-gate } 11647c478bd9Sstevel@tonic-gate 11657c478bd9Sstevel@tonic-gate /* 11667c478bd9Sstevel@tonic-gate * This routine handles each T_CONN_REQ message passed to udp. It 11677c478bd9Sstevel@tonic-gate * associates a default destination address with the stream. 11687c478bd9Sstevel@tonic-gate * 11697c478bd9Sstevel@tonic-gate * This routine sends down a T_BIND_REQ to IP with the following mblks: 11707c478bd9Sstevel@tonic-gate * T_BIND_REQ - specifying local and remote address/port 11717c478bd9Sstevel@tonic-gate * IRE_DB_REQ_TYPE - to get an IRE back containing ire_type and src 11727c478bd9Sstevel@tonic-gate * T_OK_ACK - for the T_CONN_REQ 11737c478bd9Sstevel@tonic-gate * T_CONN_CON - to keep the TPI user happy 11747c478bd9Sstevel@tonic-gate * 1175fc80c0dfSnordmark * The connect completes in udp_bind_result. 11767c478bd9Sstevel@tonic-gate * When a T_BIND_ACK is received information is extracted from the IRE 11777c478bd9Sstevel@tonic-gate * and the two appended messages are sent to the TPI user. 1178fc80c0dfSnordmark * Should udp_bind_result receive T_ERROR_ACK for the T_BIND_REQ it will 1179fc80c0dfSnordmark * convert it to an error ack for the appropriate primitive. 11807c478bd9Sstevel@tonic-gate */ 11817c478bd9Sstevel@tonic-gate static void 11827c478bd9Sstevel@tonic-gate udp_connect(queue_t *q, mblk_t *mp) 11837c478bd9Sstevel@tonic-gate { 11847c478bd9Sstevel@tonic-gate sin6_t *sin6; 11857c478bd9Sstevel@tonic-gate sin_t *sin; 11867c478bd9Sstevel@tonic-gate struct T_conn_req *tcr; 11877c478bd9Sstevel@tonic-gate in6_addr_t v6dst; 11887c478bd9Sstevel@tonic-gate ipaddr_t v4dst; 11897c478bd9Sstevel@tonic-gate uint16_t dstport; 11907c478bd9Sstevel@tonic-gate uint32_t flowinfo; 11917c478bd9Sstevel@tonic-gate mblk_t *mp1, *mp2; 11927c478bd9Sstevel@tonic-gate udp_fanout_t *udpf; 1193ff550d0eSmasputra udp_t *udp, *udp1; 1194fc80c0dfSnordmark ushort_t ipversion; 1195f4b3ec61Sdh udp_stack_t *us; 1196fc80c0dfSnordmark conn_t *connp = Q_TO_CONN(q); 1197ff550d0eSmasputra 1198fc80c0dfSnordmark udp = connp->conn_udp; 11997c478bd9Sstevel@tonic-gate tcr = (struct T_conn_req *)mp->b_rptr; 1200f4b3ec61Sdh us = udp->udp_us; 12017c478bd9Sstevel@tonic-gate 12027c478bd9Sstevel@tonic-gate /* A bit of sanity checking */ 12037c478bd9Sstevel@tonic-gate if ((mp->b_wptr - mp->b_rptr) < sizeof (struct T_conn_req)) { 12047c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TPROTO, 0); 12057c478bd9Sstevel@tonic-gate return; 12067c478bd9Sstevel@tonic-gate } 12077c478bd9Sstevel@tonic-gate 12087c478bd9Sstevel@tonic-gate if (tcr->OPT_length != 0) { 12097c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TBADOPT, 0); 12107c478bd9Sstevel@tonic-gate return; 12117c478bd9Sstevel@tonic-gate } 12127c478bd9Sstevel@tonic-gate 12137c478bd9Sstevel@tonic-gate /* 12147c478bd9Sstevel@tonic-gate * Determine packet type based on type of address passed in 12157c478bd9Sstevel@tonic-gate * the request should contain an IPv4 or IPv6 address. 12167c478bd9Sstevel@tonic-gate * Make sure that address family matches the type of 12177c478bd9Sstevel@tonic-gate * family of the the address passed down 12187c478bd9Sstevel@tonic-gate */ 12197c478bd9Sstevel@tonic-gate switch (tcr->DEST_length) { 12207c478bd9Sstevel@tonic-gate default: 12217c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TBADADDR, 0); 12227c478bd9Sstevel@tonic-gate return; 12237c478bd9Sstevel@tonic-gate 12247c478bd9Sstevel@tonic-gate case sizeof (sin_t): 12257c478bd9Sstevel@tonic-gate sin = (sin_t *)mi_offset_param(mp, tcr->DEST_offset, 12267c478bd9Sstevel@tonic-gate sizeof (sin_t)); 12277c478bd9Sstevel@tonic-gate if (sin == NULL || !OK_32PTR((char *)sin)) { 12287c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TSYSERR, EINVAL); 12297c478bd9Sstevel@tonic-gate return; 12307c478bd9Sstevel@tonic-gate } 12317c478bd9Sstevel@tonic-gate if (udp->udp_family != AF_INET || 12327c478bd9Sstevel@tonic-gate sin->sin_family != AF_INET) { 12337c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TSYSERR, EAFNOSUPPORT); 12347c478bd9Sstevel@tonic-gate return; 12357c478bd9Sstevel@tonic-gate } 12367c478bd9Sstevel@tonic-gate v4dst = sin->sin_addr.s_addr; 12377c478bd9Sstevel@tonic-gate dstport = sin->sin_port; 12387c478bd9Sstevel@tonic-gate IN6_IPADDR_TO_V4MAPPED(v4dst, &v6dst); 12397c478bd9Sstevel@tonic-gate ASSERT(udp->udp_ipversion == IPV4_VERSION); 1240fc80c0dfSnordmark ipversion = IPV4_VERSION; 12417c478bd9Sstevel@tonic-gate break; 12427c478bd9Sstevel@tonic-gate 12437c478bd9Sstevel@tonic-gate case sizeof (sin6_t): 12447c478bd9Sstevel@tonic-gate sin6 = (sin6_t *)mi_offset_param(mp, tcr->DEST_offset, 12457c478bd9Sstevel@tonic-gate sizeof (sin6_t)); 12467c478bd9Sstevel@tonic-gate if (sin6 == NULL || !OK_32PTR((char *)sin6)) { 12477c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TSYSERR, EINVAL); 12487c478bd9Sstevel@tonic-gate return; 12497c478bd9Sstevel@tonic-gate } 12507c478bd9Sstevel@tonic-gate if (udp->udp_family != AF_INET6 || 12517c478bd9Sstevel@tonic-gate sin6->sin6_family != AF_INET6) { 12527c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TSYSERR, EAFNOSUPPORT); 12537c478bd9Sstevel@tonic-gate return; 12547c478bd9Sstevel@tonic-gate } 12557c478bd9Sstevel@tonic-gate v6dst = sin6->sin6_addr; 1256fc80c0dfSnordmark dstport = sin6->sin6_port; 12577c478bd9Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED(&v6dst)) { 12587c478bd9Sstevel@tonic-gate IN6_V4MAPPED_TO_IPADDR(&v6dst, v4dst); 1259fc80c0dfSnordmark ipversion = IPV4_VERSION; 12607c478bd9Sstevel@tonic-gate flowinfo = 0; 12617c478bd9Sstevel@tonic-gate } else { 1262fc80c0dfSnordmark ipversion = IPV6_VERSION; 12637c478bd9Sstevel@tonic-gate flowinfo = sin6->sin6_flowinfo; 12647c478bd9Sstevel@tonic-gate } 12657c478bd9Sstevel@tonic-gate break; 12667c478bd9Sstevel@tonic-gate } 12677c478bd9Sstevel@tonic-gate if (dstport == 0) { 12687c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TBADADDR, 0); 12697c478bd9Sstevel@tonic-gate return; 12707c478bd9Sstevel@tonic-gate } 12717c478bd9Sstevel@tonic-gate 1272fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 1273fc80c0dfSnordmark 1274fc80c0dfSnordmark /* 1275fc80c0dfSnordmark * This UDP must have bound to a port already before doing a connect. 1276fc80c0dfSnordmark * TPI mandates that users must send TPI primitives only 1 at a time 1277fc80c0dfSnordmark * and wait for the response before sending the next primitive. 1278fc80c0dfSnordmark */ 1279fc80c0dfSnordmark if (udp->udp_state == TS_UNBND || udp->udp_pending_op != -1) { 1280fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 1281fc80c0dfSnordmark (void) mi_strlog(q, 1, SL_ERROR|SL_TRACE, 1282fc80c0dfSnordmark "udp_connect: bad state, %u", udp->udp_state); 1283fc80c0dfSnordmark udp_err_ack(q, mp, TOUTSTATE, 0); 1284fc80c0dfSnordmark return; 1285fc80c0dfSnordmark } 1286fc80c0dfSnordmark udp->udp_pending_op = T_CONN_REQ; 1287fc80c0dfSnordmark ASSERT(udp->udp_port != 0 && udp->udp_ptpbhn != NULL); 1288fc80c0dfSnordmark 1289fc80c0dfSnordmark if (ipversion == IPV4_VERSION) { 1290fc80c0dfSnordmark udp->udp_max_hdr_len = IP_SIMPLE_HDR_LENGTH + UDPH_SIZE + 1291fc80c0dfSnordmark udp->udp_ip_snd_options_len; 1292fc80c0dfSnordmark } else { 1293fc80c0dfSnordmark udp->udp_max_hdr_len = udp->udp_sticky_hdrs_len; 1294fc80c0dfSnordmark } 1295fc80c0dfSnordmark 1296fc80c0dfSnordmark udpf = &us->us_bind_fanout[UDP_BIND_HASH(udp->udp_port, 1297fc80c0dfSnordmark us->us_bind_fanout_size)]; 1298fc80c0dfSnordmark 1299fc80c0dfSnordmark mutex_enter(&udpf->uf_lock); 1300fc80c0dfSnordmark if (udp->udp_state == TS_DATA_XFER) { 1301fc80c0dfSnordmark /* Already connected - clear out state */ 1302fc80c0dfSnordmark udp->udp_v6src = udp->udp_bound_v6src; 1303fc80c0dfSnordmark udp->udp_state = TS_IDLE; 1304fc80c0dfSnordmark } 1305fc80c0dfSnordmark 13067c478bd9Sstevel@tonic-gate /* 13077c478bd9Sstevel@tonic-gate * Create a default IP header with no IP options. 13087c478bd9Sstevel@tonic-gate */ 13097c478bd9Sstevel@tonic-gate udp->udp_dstport = dstport; 1310fc80c0dfSnordmark udp->udp_ipversion = ipversion; 1311fc80c0dfSnordmark if (ipversion == IPV4_VERSION) { 13127c478bd9Sstevel@tonic-gate /* 13137c478bd9Sstevel@tonic-gate * Interpret a zero destination to mean loopback. 13147c478bd9Sstevel@tonic-gate * Update the T_CONN_REQ (sin/sin6) since it is used to 13157c478bd9Sstevel@tonic-gate * generate the T_CONN_CON. 13167c478bd9Sstevel@tonic-gate */ 13177c478bd9Sstevel@tonic-gate if (v4dst == INADDR_ANY) { 13187c478bd9Sstevel@tonic-gate v4dst = htonl(INADDR_LOOPBACK); 13197c478bd9Sstevel@tonic-gate IN6_IPADDR_TO_V4MAPPED(v4dst, &v6dst); 13207c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) { 13217c478bd9Sstevel@tonic-gate sin->sin_addr.s_addr = v4dst; 13227c478bd9Sstevel@tonic-gate } else { 13237c478bd9Sstevel@tonic-gate sin6->sin6_addr = v6dst; 13247c478bd9Sstevel@tonic-gate } 13257c478bd9Sstevel@tonic-gate } 13267c478bd9Sstevel@tonic-gate udp->udp_v6dst = v6dst; 13277c478bd9Sstevel@tonic-gate udp->udp_flowinfo = 0; 13287c478bd9Sstevel@tonic-gate 13297c478bd9Sstevel@tonic-gate /* 13307c478bd9Sstevel@tonic-gate * If the destination address is multicast and 13317c478bd9Sstevel@tonic-gate * an outgoing multicast interface has been set, 13327c478bd9Sstevel@tonic-gate * use the address of that interface as our 13337c478bd9Sstevel@tonic-gate * source address if no source address has been set. 13347c478bd9Sstevel@tonic-gate */ 13357c478bd9Sstevel@tonic-gate if (V4_PART_OF_V6(udp->udp_v6src) == INADDR_ANY && 13367c478bd9Sstevel@tonic-gate CLASSD(v4dst) && 13377c478bd9Sstevel@tonic-gate udp->udp_multicast_if_addr != INADDR_ANY) { 13387c478bd9Sstevel@tonic-gate IN6_IPADDR_TO_V4MAPPED(udp->udp_multicast_if_addr, 13397c478bd9Sstevel@tonic-gate &udp->udp_v6src); 13407c478bd9Sstevel@tonic-gate } 13417c478bd9Sstevel@tonic-gate } else { 13427c478bd9Sstevel@tonic-gate ASSERT(udp->udp_ipversion == IPV6_VERSION); 13437c478bd9Sstevel@tonic-gate /* 13447c478bd9Sstevel@tonic-gate * Interpret a zero destination to mean loopback. 13457c478bd9Sstevel@tonic-gate * Update the T_CONN_REQ (sin/sin6) since it is used to 13467c478bd9Sstevel@tonic-gate * generate the T_CONN_CON. 13477c478bd9Sstevel@tonic-gate */ 13487c478bd9Sstevel@tonic-gate if (IN6_IS_ADDR_UNSPECIFIED(&v6dst)) { 13497c478bd9Sstevel@tonic-gate v6dst = ipv6_loopback; 13507c478bd9Sstevel@tonic-gate sin6->sin6_addr = v6dst; 13517c478bd9Sstevel@tonic-gate } 13527c478bd9Sstevel@tonic-gate udp->udp_v6dst = v6dst; 13537c478bd9Sstevel@tonic-gate udp->udp_flowinfo = flowinfo; 13547c478bd9Sstevel@tonic-gate /* 13557c478bd9Sstevel@tonic-gate * If the destination address is multicast and 13567c478bd9Sstevel@tonic-gate * an outgoing multicast interface has been set, 13577c478bd9Sstevel@tonic-gate * then the ip bind logic will pick the correct source 13587c478bd9Sstevel@tonic-gate * address (i.e. matching the outgoing multicast interface). 13597c478bd9Sstevel@tonic-gate */ 13607c478bd9Sstevel@tonic-gate } 13617c478bd9Sstevel@tonic-gate 13627c478bd9Sstevel@tonic-gate /* 1363fc80c0dfSnordmark * Verify that the src/port/dst/port is unique for all 13647c478bd9Sstevel@tonic-gate * connections in TS_DATA_XFER 13657c478bd9Sstevel@tonic-gate */ 13667c478bd9Sstevel@tonic-gate for (udp1 = udpf->uf_udp; udp1 != NULL; udp1 = udp1->udp_bind_hash) { 13677c478bd9Sstevel@tonic-gate if (udp1->udp_state != TS_DATA_XFER) 13687c478bd9Sstevel@tonic-gate continue; 13697c478bd9Sstevel@tonic-gate if (udp->udp_port != udp1->udp_port || 13707c478bd9Sstevel@tonic-gate udp->udp_ipversion != udp1->udp_ipversion || 13717c478bd9Sstevel@tonic-gate dstport != udp1->udp_dstport || 13727c478bd9Sstevel@tonic-gate !IN6_ARE_ADDR_EQUAL(&udp->udp_v6src, &udp1->udp_v6src) || 13739b3fddaeSrk !IN6_ARE_ADDR_EQUAL(&v6dst, &udp1->udp_v6dst) || 137455e77fafSrk !(IPCL_ZONE_MATCH(udp->udp_connp, 137555e77fafSrk udp1->udp_connp->conn_zoneid) || 137655e77fafSrk IPCL_ZONE_MATCH(udp1->udp_connp, 137755e77fafSrk udp->udp_connp->conn_zoneid))) 13787c478bd9Sstevel@tonic-gate continue; 13797c478bd9Sstevel@tonic-gate mutex_exit(&udpf->uf_lock); 1380fc80c0dfSnordmark udp->udp_pending_op = -1; 1381fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 13827c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TBADADDR, 0); 13837c478bd9Sstevel@tonic-gate return; 13847c478bd9Sstevel@tonic-gate } 13857c478bd9Sstevel@tonic-gate udp->udp_state = TS_DATA_XFER; 13867c478bd9Sstevel@tonic-gate mutex_exit(&udpf->uf_lock); 13877c478bd9Sstevel@tonic-gate 13887c478bd9Sstevel@tonic-gate /* 13897c478bd9Sstevel@tonic-gate * Send down bind to IP to verify that there is a route 13907c478bd9Sstevel@tonic-gate * and to determine the source address. 13917c478bd9Sstevel@tonic-gate * This will come back as T_BIND_ACK with an IRE_DB_TYPE in rput. 13927c478bd9Sstevel@tonic-gate */ 13937c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) 13947c478bd9Sstevel@tonic-gate mp1 = udp_ip_bind_mp(udp, O_T_BIND_REQ, sizeof (ipa_conn_t)); 13957c478bd9Sstevel@tonic-gate else 13967c478bd9Sstevel@tonic-gate mp1 = udp_ip_bind_mp(udp, O_T_BIND_REQ, sizeof (ipa6_conn_t)); 13977c478bd9Sstevel@tonic-gate if (mp1 == NULL) { 13987c478bd9Sstevel@tonic-gate bind_failed: 13997c478bd9Sstevel@tonic-gate mutex_enter(&udpf->uf_lock); 14007c478bd9Sstevel@tonic-gate udp->udp_state = TS_IDLE; 1401fc80c0dfSnordmark udp->udp_pending_op = -1; 14027c478bd9Sstevel@tonic-gate mutex_exit(&udpf->uf_lock); 1403fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 1404fc80c0dfSnordmark udp_err_ack(q, mp, TSYSERR, ENOMEM); 14057c478bd9Sstevel@tonic-gate return; 14067c478bd9Sstevel@tonic-gate } 14077c478bd9Sstevel@tonic-gate 1408fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 14097c478bd9Sstevel@tonic-gate /* 14107c478bd9Sstevel@tonic-gate * We also have to send a connection confirmation to 1411fc80c0dfSnordmark * keep TLI happy. Prepare it for udp_bind_result. 14127c478bd9Sstevel@tonic-gate */ 14137c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) 14147c478bd9Sstevel@tonic-gate mp2 = mi_tpi_conn_con(NULL, (char *)sin, 14157c478bd9Sstevel@tonic-gate sizeof (*sin), NULL, 0); 14167c478bd9Sstevel@tonic-gate else 14177c478bd9Sstevel@tonic-gate mp2 = mi_tpi_conn_con(NULL, (char *)sin6, 14187c478bd9Sstevel@tonic-gate sizeof (*sin6), NULL, 0); 14197c478bd9Sstevel@tonic-gate if (mp2 == NULL) { 14207c478bd9Sstevel@tonic-gate freemsg(mp1); 1421fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 14227c478bd9Sstevel@tonic-gate goto bind_failed; 14237c478bd9Sstevel@tonic-gate } 14247c478bd9Sstevel@tonic-gate 14257c478bd9Sstevel@tonic-gate mp = mi_tpi_ok_ack_alloc(mp); 14267c478bd9Sstevel@tonic-gate if (mp == NULL) { 14277c478bd9Sstevel@tonic-gate /* Unable to reuse the T_CONN_REQ for the ack. */ 14287c478bd9Sstevel@tonic-gate freemsg(mp2); 1429fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 1430fc80c0dfSnordmark mutex_enter(&udpf->uf_lock); 1431fc80c0dfSnordmark udp->udp_state = TS_IDLE; 1432fc80c0dfSnordmark udp->udp_pending_op = -1; 1433fc80c0dfSnordmark mutex_exit(&udpf->uf_lock); 1434fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 14357c478bd9Sstevel@tonic-gate udp_err_ack_prim(q, mp1, T_CONN_REQ, TSYSERR, ENOMEM); 1436fc80c0dfSnordmark return; 14377c478bd9Sstevel@tonic-gate } 14387c478bd9Sstevel@tonic-gate 14397c478bd9Sstevel@tonic-gate /* Hang onto the T_OK_ACK and T_CONN_CON for later. */ 14407c478bd9Sstevel@tonic-gate linkb(mp1, mp); 14417c478bd9Sstevel@tonic-gate linkb(mp1, mp2); 14427c478bd9Sstevel@tonic-gate 1443fc80c0dfSnordmark mblk_setcred(mp1, connp->conn_cred); 1444ff550d0eSmasputra if (udp->udp_family == AF_INET) 1445fc80c0dfSnordmark mp1 = ip_bind_v4(q, mp1, connp); 1446ff550d0eSmasputra else 1447fc80c0dfSnordmark mp1 = ip_bind_v6(q, mp1, connp, NULL); 1448ff550d0eSmasputra 1449fc80c0dfSnordmark /* The above return NULL if the bind needs to be deferred */ 1450ff550d0eSmasputra if (mp1 != NULL) 1451fc80c0dfSnordmark udp_bind_result(connp, mp1); 1452ff550d0eSmasputra else 1453fc80c0dfSnordmark CONN_INC_REF(connp); 14547c478bd9Sstevel@tonic-gate } 14557c478bd9Sstevel@tonic-gate 14567c478bd9Sstevel@tonic-gate static int 14577c478bd9Sstevel@tonic-gate udp_close(queue_t *q) 14587c478bd9Sstevel@tonic-gate { 1459fc80c0dfSnordmark conn_t *connp = (conn_t *)q->q_ptr; 1460ff550d0eSmasputra udp_t *udp; 14617c478bd9Sstevel@tonic-gate 1462ff550d0eSmasputra ASSERT(connp != NULL && IPCL_IS_UDP(connp)); 1463ff550d0eSmasputra udp = connp->conn_udp; 1464ff550d0eSmasputra 1465fc80c0dfSnordmark udp_quiesce_conn(connp); 1466ff550d0eSmasputra ip_quiesce_conn(connp); 1467ff550d0eSmasputra /* 1468ff550d0eSmasputra * Disable read-side synchronous stream 1469ff550d0eSmasputra * interface and drain any queued data. 1470ff550d0eSmasputra */ 1471ff550d0eSmasputra udp_rcv_drain(q, udp, B_TRUE); 1472ff550d0eSmasputra ASSERT(!udp->udp_direct_sockfs); 14737c478bd9Sstevel@tonic-gate 14747c478bd9Sstevel@tonic-gate qprocsoff(q); 14757c478bd9Sstevel@tonic-gate 1476ff550d0eSmasputra ASSERT(udp->udp_rcv_cnt == 0); 1477ff550d0eSmasputra ASSERT(udp->udp_rcv_msgcnt == 0); 1478ff550d0eSmasputra ASSERT(udp->udp_rcv_list_head == NULL); 1479ff550d0eSmasputra ASSERT(udp->udp_rcv_list_tail == NULL); 1480ff550d0eSmasputra 1481ff550d0eSmasputra udp_close_free(connp); 1482c62a497dSgeorges 1483ff550d0eSmasputra /* 1484fc80c0dfSnordmark * Now we are truly single threaded on this stream, and can 1485fc80c0dfSnordmark * delete the things hanging off the connp, and finally the connp. 1486fc80c0dfSnordmark * We removed this connp from the fanout list, it cannot be 1487fc80c0dfSnordmark * accessed thru the fanouts, and we already waited for the 1488fc80c0dfSnordmark * conn_ref to drop to 0. We are already in close, so 1489fc80c0dfSnordmark * there cannot be any other thread from the top. qprocsoff 1490fc80c0dfSnordmark * has completed, and service has completed or won't run in 1491fc80c0dfSnordmark * future. 1492ff550d0eSmasputra */ 1493fc80c0dfSnordmark ASSERT(connp->conn_ref == 1); 1494*aa92d85bSgt inet_minor_free(connp->conn_minor_arena, connp->conn_dev); 1495fc80c0dfSnordmark connp->conn_ref--; 1496fc80c0dfSnordmark ipcl_conn_destroy(connp); 1497fc80c0dfSnordmark 1498fc80c0dfSnordmark q->q_ptr = WR(q)->q_ptr = NULL; 1499ff550d0eSmasputra return (0); 1500ff550d0eSmasputra } 1501ff550d0eSmasputra 1502ff550d0eSmasputra /* 1503fc80c0dfSnordmark * Called in the close path to quiesce the conn 1504ff550d0eSmasputra */ 1505ff550d0eSmasputra void 1506ff550d0eSmasputra udp_quiesce_conn(conn_t *connp) 1507ff550d0eSmasputra { 1508ff550d0eSmasputra udp_t *udp = connp->conn_udp; 1509ff550d0eSmasputra 15107c478bd9Sstevel@tonic-gate if (cl_inet_unbind != NULL && udp->udp_state == TS_IDLE) { 15117c478bd9Sstevel@tonic-gate /* 15127c478bd9Sstevel@tonic-gate * Running in cluster mode - register unbind information 15137c478bd9Sstevel@tonic-gate */ 15147c478bd9Sstevel@tonic-gate if (udp->udp_ipversion == IPV4_VERSION) { 15157c478bd9Sstevel@tonic-gate (*cl_inet_unbind)(IPPROTO_UDP, AF_INET, 15167c478bd9Sstevel@tonic-gate (uint8_t *)(&(V4_PART_OF_V6(udp->udp_v6src))), 15177c478bd9Sstevel@tonic-gate (in_port_t)udp->udp_port); 15187c478bd9Sstevel@tonic-gate } else { 15197c478bd9Sstevel@tonic-gate (*cl_inet_unbind)(IPPROTO_UDP, AF_INET6, 15207c478bd9Sstevel@tonic-gate (uint8_t *)(&(udp->udp_v6src)), 15217c478bd9Sstevel@tonic-gate (in_port_t)udp->udp_port); 15227c478bd9Sstevel@tonic-gate } 15237c478bd9Sstevel@tonic-gate } 15247c478bd9Sstevel@tonic-gate 15257c478bd9Sstevel@tonic-gate udp_bind_hash_remove(udp, B_FALSE); 1526ff550d0eSmasputra 1527ff550d0eSmasputra } 1528ff550d0eSmasputra 1529ff550d0eSmasputra void 1530ff550d0eSmasputra udp_close_free(conn_t *connp) 1531ff550d0eSmasputra { 1532ff550d0eSmasputra udp_t *udp = connp->conn_udp; 1533ff550d0eSmasputra 15347c478bd9Sstevel@tonic-gate /* If there are any options associated with the stream, free them. */ 1535e845e33dSnordmark if (udp->udp_ip_snd_options != NULL) { 15367c478bd9Sstevel@tonic-gate mi_free((char *)udp->udp_ip_snd_options); 1537ff550d0eSmasputra udp->udp_ip_snd_options = NULL; 1538e845e33dSnordmark udp->udp_ip_snd_options_len = 0; 1539ff550d0eSmasputra } 15407c478bd9Sstevel@tonic-gate 1541e845e33dSnordmark if (udp->udp_ip_rcv_options != NULL) { 15427c478bd9Sstevel@tonic-gate mi_free((char *)udp->udp_ip_rcv_options); 1543ff550d0eSmasputra udp->udp_ip_rcv_options = NULL; 1544e845e33dSnordmark udp->udp_ip_rcv_options_len = 0; 1545ff550d0eSmasputra } 15467c478bd9Sstevel@tonic-gate 15477c478bd9Sstevel@tonic-gate /* Free memory associated with sticky options */ 15487c478bd9Sstevel@tonic-gate if (udp->udp_sticky_hdrs_len != 0) { 15497c478bd9Sstevel@tonic-gate kmem_free(udp->udp_sticky_hdrs, 15507c478bd9Sstevel@tonic-gate udp->udp_sticky_hdrs_len); 15517c478bd9Sstevel@tonic-gate udp->udp_sticky_hdrs = NULL; 15527c478bd9Sstevel@tonic-gate udp->udp_sticky_hdrs_len = 0; 15537c478bd9Sstevel@tonic-gate } 1554ff550d0eSmasputra 155545916cd2Sjpk ip6_pkt_free(&udp->udp_sticky_ipp); 1556e845e33dSnordmark 1557e845e33dSnordmark /* 1558e845e33dSnordmark * Clear any fields which the kmem_cache constructor clears. 1559e845e33dSnordmark * Only udp_connp needs to be preserved. 1560e845e33dSnordmark * TBD: We should make this more efficient to avoid clearing 1561e845e33dSnordmark * everything. 1562e845e33dSnordmark */ 1563e845e33dSnordmark ASSERT(udp->udp_connp == connp); 1564e845e33dSnordmark bzero(udp, sizeof (udp_t)); 1565e845e33dSnordmark udp->udp_connp = connp; 15667c478bd9Sstevel@tonic-gate } 15677c478bd9Sstevel@tonic-gate 15687c478bd9Sstevel@tonic-gate /* 15697c478bd9Sstevel@tonic-gate * This routine handles each T_DISCON_REQ message passed to udp 15707c478bd9Sstevel@tonic-gate * as an indicating that UDP is no longer connected. This results 15717c478bd9Sstevel@tonic-gate * in sending a T_BIND_REQ to IP to restore the binding to just 15727c478bd9Sstevel@tonic-gate * the local address/port. 15737c478bd9Sstevel@tonic-gate * 15747c478bd9Sstevel@tonic-gate * This routine sends down a T_BIND_REQ to IP with the following mblks: 15757c478bd9Sstevel@tonic-gate * T_BIND_REQ - specifying just the local address/port 15767c478bd9Sstevel@tonic-gate * T_OK_ACK - for the T_DISCON_REQ 15777c478bd9Sstevel@tonic-gate * 1578fc80c0dfSnordmark * The disconnect completes in udp_bind_result. 15797c478bd9Sstevel@tonic-gate * When a T_BIND_ACK is received the appended T_OK_ACK is sent to the TPI user. 1580fc80c0dfSnordmark * Should udp_bind_result receive T_ERROR_ACK for the T_BIND_REQ it will 1581fc80c0dfSnordmark * convert it to an error ack for the appropriate primitive. 15827c478bd9Sstevel@tonic-gate */ 15837c478bd9Sstevel@tonic-gate static void 15847c478bd9Sstevel@tonic-gate udp_disconnect(queue_t *q, mblk_t *mp) 15857c478bd9Sstevel@tonic-gate { 1586fc80c0dfSnordmark udp_t *udp; 15877c478bd9Sstevel@tonic-gate mblk_t *mp1; 15887c478bd9Sstevel@tonic-gate udp_fanout_t *udpf; 1589f4b3ec61Sdh udp_stack_t *us; 1590fc80c0dfSnordmark conn_t *connp = Q_TO_CONN(q); 15917c478bd9Sstevel@tonic-gate 1592fc80c0dfSnordmark udp = connp->conn_udp; 1593f4b3ec61Sdh us = udp->udp_us; 1594fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 1595fc80c0dfSnordmark if (udp->udp_state != TS_DATA_XFER || udp->udp_pending_op != -1) { 1596fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 15977c478bd9Sstevel@tonic-gate (void) mi_strlog(q, 1, SL_ERROR|SL_TRACE, 15987c478bd9Sstevel@tonic-gate "udp_disconnect: bad state, %u", udp->udp_state); 15997c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TOUTSTATE, 0); 16007c478bd9Sstevel@tonic-gate return; 16017c478bd9Sstevel@tonic-gate } 1602fc80c0dfSnordmark udp->udp_pending_op = T_DISCON_REQ; 1603f4b3ec61Sdh udpf = &us->us_bind_fanout[UDP_BIND_HASH(udp->udp_port, 1604f4b3ec61Sdh us->us_bind_fanout_size)]; 16057c478bd9Sstevel@tonic-gate mutex_enter(&udpf->uf_lock); 16067c478bd9Sstevel@tonic-gate udp->udp_v6src = udp->udp_bound_v6src; 16077c478bd9Sstevel@tonic-gate udp->udp_state = TS_IDLE; 16087c478bd9Sstevel@tonic-gate mutex_exit(&udpf->uf_lock); 16097c478bd9Sstevel@tonic-gate 16107c478bd9Sstevel@tonic-gate /* 16117c478bd9Sstevel@tonic-gate * Send down bind to IP to remove the full binding and revert 16127c478bd9Sstevel@tonic-gate * to the local address binding. 16137c478bd9Sstevel@tonic-gate */ 16147c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) 16157c478bd9Sstevel@tonic-gate mp1 = udp_ip_bind_mp(udp, O_T_BIND_REQ, sizeof (sin_t)); 16167c478bd9Sstevel@tonic-gate else 16177c478bd9Sstevel@tonic-gate mp1 = udp_ip_bind_mp(udp, O_T_BIND_REQ, sizeof (sin6_t)); 16187c478bd9Sstevel@tonic-gate if (mp1 == NULL) { 1619fc80c0dfSnordmark udp->udp_pending_op = -1; 1620fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 16217c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TSYSERR, ENOMEM); 16227c478bd9Sstevel@tonic-gate return; 16237c478bd9Sstevel@tonic-gate } 16247c478bd9Sstevel@tonic-gate mp = mi_tpi_ok_ack_alloc(mp); 16257c478bd9Sstevel@tonic-gate if (mp == NULL) { 16267c478bd9Sstevel@tonic-gate /* Unable to reuse the T_DISCON_REQ for the ack. */ 1627fc80c0dfSnordmark udp->udp_pending_op = -1; 1628fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 16297c478bd9Sstevel@tonic-gate udp_err_ack_prim(q, mp1, T_DISCON_REQ, TSYSERR, ENOMEM); 16307c478bd9Sstevel@tonic-gate return; 16317c478bd9Sstevel@tonic-gate } 16327c478bd9Sstevel@tonic-gate 16337c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET6) { 16347c478bd9Sstevel@tonic-gate int error; 16357c478bd9Sstevel@tonic-gate 16367c478bd9Sstevel@tonic-gate /* Rebuild the header template */ 1637fc80c0dfSnordmark error = udp_build_hdrs(udp); 16387c478bd9Sstevel@tonic-gate if (error != 0) { 1639fc80c0dfSnordmark udp->udp_pending_op = -1; 1640fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 16417c478bd9Sstevel@tonic-gate udp_err_ack_prim(q, mp, T_DISCON_REQ, TSYSERR, error); 16427c478bd9Sstevel@tonic-gate freemsg(mp1); 16437c478bd9Sstevel@tonic-gate return; 16447c478bd9Sstevel@tonic-gate } 16457c478bd9Sstevel@tonic-gate } 16467c478bd9Sstevel@tonic-gate 1647fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 1648fc80c0dfSnordmark /* Append the T_OK_ACK to the T_BIND_REQ for udp_bind_ack */ 16497c478bd9Sstevel@tonic-gate linkb(mp1, mp); 1650ff550d0eSmasputra 1651ff550d0eSmasputra if (udp->udp_family == AF_INET6) 1652fc80c0dfSnordmark mp1 = ip_bind_v6(q, mp1, connp, NULL); 1653ff550d0eSmasputra else 1654fc80c0dfSnordmark mp1 = ip_bind_v4(q, mp1, connp); 1655ff550d0eSmasputra 1656fc80c0dfSnordmark /* The above return NULL if the bind needs to be deferred */ 1657ff550d0eSmasputra if (mp1 != NULL) 1658fc80c0dfSnordmark udp_bind_result(connp, mp1); 1659ff550d0eSmasputra else 1660fc80c0dfSnordmark CONN_INC_REF(connp); 16617c478bd9Sstevel@tonic-gate } 16627c478bd9Sstevel@tonic-gate 16637c478bd9Sstevel@tonic-gate /* This routine creates a T_ERROR_ACK message and passes it upstream. */ 16647c478bd9Sstevel@tonic-gate static void 16657c478bd9Sstevel@tonic-gate udp_err_ack(queue_t *q, mblk_t *mp, t_scalar_t t_error, int sys_error) 16667c478bd9Sstevel@tonic-gate { 16677c478bd9Sstevel@tonic-gate if ((mp = mi_tpi_err_ack_alloc(mp, t_error, sys_error)) != NULL) 1668fc80c0dfSnordmark qreply(q, mp); 16697c478bd9Sstevel@tonic-gate } 16707c478bd9Sstevel@tonic-gate 16717c478bd9Sstevel@tonic-gate /* Shorthand to generate and send TPI error acks to our client */ 16727c478bd9Sstevel@tonic-gate static void 16737c478bd9Sstevel@tonic-gate udp_err_ack_prim(queue_t *q, mblk_t *mp, int primitive, t_scalar_t t_error, 16747c478bd9Sstevel@tonic-gate int sys_error) 16757c478bd9Sstevel@tonic-gate { 16767c478bd9Sstevel@tonic-gate struct T_error_ack *teackp; 16777c478bd9Sstevel@tonic-gate 16787c478bd9Sstevel@tonic-gate if ((mp = tpi_ack_alloc(mp, sizeof (struct T_error_ack), 16797c478bd9Sstevel@tonic-gate M_PCPROTO, T_ERROR_ACK)) != NULL) { 16807c478bd9Sstevel@tonic-gate teackp = (struct T_error_ack *)mp->b_rptr; 16817c478bd9Sstevel@tonic-gate teackp->ERROR_prim = primitive; 16827c478bd9Sstevel@tonic-gate teackp->TLI_error = t_error; 16837c478bd9Sstevel@tonic-gate teackp->UNIX_error = sys_error; 1684fc80c0dfSnordmark qreply(q, mp); 16857c478bd9Sstevel@tonic-gate } 16867c478bd9Sstevel@tonic-gate } 16877c478bd9Sstevel@tonic-gate 16887c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 16897c478bd9Sstevel@tonic-gate static int 16907c478bd9Sstevel@tonic-gate udp_extra_priv_ports_get(queue_t *q, mblk_t *mp, caddr_t cp, cred_t *cr) 16917c478bd9Sstevel@tonic-gate { 16927c478bd9Sstevel@tonic-gate int i; 1693f4b3ec61Sdh udp_t *udp = Q_TO_UDP(q); 1694f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 16957c478bd9Sstevel@tonic-gate 1696f4b3ec61Sdh for (i = 0; i < us->us_num_epriv_ports; i++) { 1697f4b3ec61Sdh if (us->us_epriv_ports[i] != 0) 1698f4b3ec61Sdh (void) mi_mpprintf(mp, "%d ", us->us_epriv_ports[i]); 16997c478bd9Sstevel@tonic-gate } 17007c478bd9Sstevel@tonic-gate return (0); 17017c478bd9Sstevel@tonic-gate } 17027c478bd9Sstevel@tonic-gate 17037c478bd9Sstevel@tonic-gate /* ARGSUSED */ 17047c478bd9Sstevel@tonic-gate static int 17057c478bd9Sstevel@tonic-gate udp_extra_priv_ports_add(queue_t *q, mblk_t *mp, char *value, caddr_t cp, 17067c478bd9Sstevel@tonic-gate cred_t *cr) 17077c478bd9Sstevel@tonic-gate { 17087c478bd9Sstevel@tonic-gate long new_value; 17097c478bd9Sstevel@tonic-gate int i; 1710f4b3ec61Sdh udp_t *udp = Q_TO_UDP(q); 1711f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 17127c478bd9Sstevel@tonic-gate 17137c478bd9Sstevel@tonic-gate /* 17147c478bd9Sstevel@tonic-gate * Fail the request if the new value does not lie within the 17157c478bd9Sstevel@tonic-gate * port number limits. 17167c478bd9Sstevel@tonic-gate */ 17177c478bd9Sstevel@tonic-gate if (ddi_strtol(value, NULL, 10, &new_value) != 0 || 17187c478bd9Sstevel@tonic-gate new_value <= 0 || new_value >= 65536) { 17197c478bd9Sstevel@tonic-gate return (EINVAL); 17207c478bd9Sstevel@tonic-gate } 17217c478bd9Sstevel@tonic-gate 17227c478bd9Sstevel@tonic-gate /* Check if the value is already in the list */ 1723f4b3ec61Sdh for (i = 0; i < us->us_num_epriv_ports; i++) { 1724f4b3ec61Sdh if (new_value == us->us_epriv_ports[i]) { 17257c478bd9Sstevel@tonic-gate return (EEXIST); 17267c478bd9Sstevel@tonic-gate } 17277c478bd9Sstevel@tonic-gate } 17287c478bd9Sstevel@tonic-gate /* Find an empty slot */ 1729f4b3ec61Sdh for (i = 0; i < us->us_num_epriv_ports; i++) { 1730f4b3ec61Sdh if (us->us_epriv_ports[i] == 0) 17317c478bd9Sstevel@tonic-gate break; 17327c478bd9Sstevel@tonic-gate } 1733f4b3ec61Sdh if (i == us->us_num_epriv_ports) { 17347c478bd9Sstevel@tonic-gate return (EOVERFLOW); 17357c478bd9Sstevel@tonic-gate } 17367c478bd9Sstevel@tonic-gate 17377c478bd9Sstevel@tonic-gate /* Set the new value */ 1738f4b3ec61Sdh us->us_epriv_ports[i] = (in_port_t)new_value; 17397c478bd9Sstevel@tonic-gate return (0); 17407c478bd9Sstevel@tonic-gate } 17417c478bd9Sstevel@tonic-gate 17427c478bd9Sstevel@tonic-gate /* ARGSUSED */ 17437c478bd9Sstevel@tonic-gate static int 17447c478bd9Sstevel@tonic-gate udp_extra_priv_ports_del(queue_t *q, mblk_t *mp, char *value, caddr_t cp, 17457c478bd9Sstevel@tonic-gate cred_t *cr) 17467c478bd9Sstevel@tonic-gate { 17477c478bd9Sstevel@tonic-gate long new_value; 17487c478bd9Sstevel@tonic-gate int i; 1749f4b3ec61Sdh udp_t *udp = Q_TO_UDP(q); 1750f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 17517c478bd9Sstevel@tonic-gate 17527c478bd9Sstevel@tonic-gate /* 17537c478bd9Sstevel@tonic-gate * Fail the request if the new value does not lie within the 17547c478bd9Sstevel@tonic-gate * port number limits. 17557c478bd9Sstevel@tonic-gate */ 17567c478bd9Sstevel@tonic-gate if (ddi_strtol(value, NULL, 10, &new_value) != 0 || 17577c478bd9Sstevel@tonic-gate new_value <= 0 || new_value >= 65536) { 17587c478bd9Sstevel@tonic-gate return (EINVAL); 17597c478bd9Sstevel@tonic-gate } 17607c478bd9Sstevel@tonic-gate 17617c478bd9Sstevel@tonic-gate /* Check that the value is already in the list */ 1762f4b3ec61Sdh for (i = 0; i < us->us_num_epriv_ports; i++) { 1763f4b3ec61Sdh if (us->us_epriv_ports[i] == new_value) 17647c478bd9Sstevel@tonic-gate break; 17657c478bd9Sstevel@tonic-gate } 1766f4b3ec61Sdh if (i == us->us_num_epriv_ports) { 17677c478bd9Sstevel@tonic-gate return (ESRCH); 17687c478bd9Sstevel@tonic-gate } 17697c478bd9Sstevel@tonic-gate 17707c478bd9Sstevel@tonic-gate /* Clear the value */ 1771f4b3ec61Sdh us->us_epriv_ports[i] = 0; 17727c478bd9Sstevel@tonic-gate return (0); 17737c478bd9Sstevel@tonic-gate } 17747c478bd9Sstevel@tonic-gate 17757c478bd9Sstevel@tonic-gate /* At minimum we need 4 bytes of UDP header */ 17767c478bd9Sstevel@tonic-gate #define ICMP_MIN_UDP_HDR 4 17777c478bd9Sstevel@tonic-gate 17787c478bd9Sstevel@tonic-gate /* 1779fc80c0dfSnordmark * udp_icmp_error is called by udp_input to process ICMP msgs. passed up by IP. 17807c478bd9Sstevel@tonic-gate * Generates the appropriate T_UDERROR_IND for permanent (non-transient) errors. 17817c478bd9Sstevel@tonic-gate * Assumes that IP has pulled up everything up to and including the ICMP header. 17827c478bd9Sstevel@tonic-gate */ 17837c478bd9Sstevel@tonic-gate static void 17847c478bd9Sstevel@tonic-gate udp_icmp_error(queue_t *q, mblk_t *mp) 17857c478bd9Sstevel@tonic-gate { 17867c478bd9Sstevel@tonic-gate icmph_t *icmph; 17877c478bd9Sstevel@tonic-gate ipha_t *ipha; 17887c478bd9Sstevel@tonic-gate int iph_hdr_length; 17897c478bd9Sstevel@tonic-gate udpha_t *udpha; 17907c478bd9Sstevel@tonic-gate sin_t sin; 17917c478bd9Sstevel@tonic-gate sin6_t sin6; 17927c478bd9Sstevel@tonic-gate mblk_t *mp1; 17937c478bd9Sstevel@tonic-gate int error = 0; 1794ff550d0eSmasputra udp_t *udp = Q_TO_UDP(q); 17957c478bd9Sstevel@tonic-gate 1796fc80c0dfSnordmark ipha = (ipha_t *)mp->b_rptr; 17977c478bd9Sstevel@tonic-gate 1798fc80c0dfSnordmark ASSERT(OK_32PTR(mp->b_rptr)); 17997c478bd9Sstevel@tonic-gate 1800fc80c0dfSnordmark if (IPH_HDR_VERSION(ipha) != IPV4_VERSION) { 1801fc80c0dfSnordmark ASSERT(IPH_HDR_VERSION(ipha) == IPV6_VERSION); 18027c478bd9Sstevel@tonic-gate udp_icmp_error_ipv6(q, mp); 18037c478bd9Sstevel@tonic-gate return; 18047c478bd9Sstevel@tonic-gate } 1805fc80c0dfSnordmark ASSERT(IPH_HDR_VERSION(ipha) == IPV4_VERSION); 18067c478bd9Sstevel@tonic-gate 18077c478bd9Sstevel@tonic-gate /* Skip past the outer IP and ICMP headers */ 18087c478bd9Sstevel@tonic-gate iph_hdr_length = IPH_HDR_LENGTH(ipha); 18097c478bd9Sstevel@tonic-gate icmph = (icmph_t *)&mp->b_rptr[iph_hdr_length]; 18107c478bd9Sstevel@tonic-gate ipha = (ipha_t *)&icmph[1]; 18117c478bd9Sstevel@tonic-gate 18127c478bd9Sstevel@tonic-gate /* Skip past the inner IP and find the ULP header */ 18137c478bd9Sstevel@tonic-gate iph_hdr_length = IPH_HDR_LENGTH(ipha); 18147c478bd9Sstevel@tonic-gate udpha = (udpha_t *)((char *)ipha + iph_hdr_length); 18157c478bd9Sstevel@tonic-gate 18167c478bd9Sstevel@tonic-gate switch (icmph->icmph_type) { 18177c478bd9Sstevel@tonic-gate case ICMP_DEST_UNREACHABLE: 18187c478bd9Sstevel@tonic-gate switch (icmph->icmph_code) { 18197c478bd9Sstevel@tonic-gate case ICMP_FRAGMENTATION_NEEDED: 18207c478bd9Sstevel@tonic-gate /* 18217c478bd9Sstevel@tonic-gate * IP has already adjusted the path MTU. 18227c478bd9Sstevel@tonic-gate */ 18237c478bd9Sstevel@tonic-gate break; 18247c478bd9Sstevel@tonic-gate case ICMP_PORT_UNREACHABLE: 18257c478bd9Sstevel@tonic-gate case ICMP_PROTOCOL_UNREACHABLE: 18267c478bd9Sstevel@tonic-gate error = ECONNREFUSED; 18277c478bd9Sstevel@tonic-gate break; 18287c478bd9Sstevel@tonic-gate default: 18297c478bd9Sstevel@tonic-gate /* Transient errors */ 18307c478bd9Sstevel@tonic-gate break; 18317c478bd9Sstevel@tonic-gate } 18327c478bd9Sstevel@tonic-gate break; 18337c478bd9Sstevel@tonic-gate default: 18347c478bd9Sstevel@tonic-gate /* Transient errors */ 18357c478bd9Sstevel@tonic-gate break; 18367c478bd9Sstevel@tonic-gate } 18377c478bd9Sstevel@tonic-gate if (error == 0) { 18387c478bd9Sstevel@tonic-gate freemsg(mp); 18397c478bd9Sstevel@tonic-gate return; 18407c478bd9Sstevel@tonic-gate } 18417c478bd9Sstevel@tonic-gate 1842fc80c0dfSnordmark /* 1843fc80c0dfSnordmark * Deliver T_UDERROR_IND when the application has asked for it. 1844fc80c0dfSnordmark * The socket layer enables this automatically when connected. 1845fc80c0dfSnordmark */ 1846fc80c0dfSnordmark if (!udp->udp_dgram_errind) { 1847fc80c0dfSnordmark freemsg(mp); 1848fc80c0dfSnordmark return; 1849fc80c0dfSnordmark } 1850fc80c0dfSnordmark 18517c478bd9Sstevel@tonic-gate switch (udp->udp_family) { 18527c478bd9Sstevel@tonic-gate case AF_INET: 18537c478bd9Sstevel@tonic-gate sin = sin_null; 18547c478bd9Sstevel@tonic-gate sin.sin_family = AF_INET; 18557c478bd9Sstevel@tonic-gate sin.sin_addr.s_addr = ipha->ipha_dst; 18567c478bd9Sstevel@tonic-gate sin.sin_port = udpha->uha_dst_port; 18577c478bd9Sstevel@tonic-gate mp1 = mi_tpi_uderror_ind((char *)&sin, sizeof (sin_t), NULL, 0, 18587c478bd9Sstevel@tonic-gate error); 18597c478bd9Sstevel@tonic-gate break; 18607c478bd9Sstevel@tonic-gate case AF_INET6: 18617c478bd9Sstevel@tonic-gate sin6 = sin6_null; 18627c478bd9Sstevel@tonic-gate sin6.sin6_family = AF_INET6; 18637c478bd9Sstevel@tonic-gate IN6_IPADDR_TO_V4MAPPED(ipha->ipha_dst, &sin6.sin6_addr); 18647c478bd9Sstevel@tonic-gate sin6.sin6_port = udpha->uha_dst_port; 18657c478bd9Sstevel@tonic-gate 18667c478bd9Sstevel@tonic-gate mp1 = mi_tpi_uderror_ind((char *)&sin6, sizeof (sin6_t), 18677c478bd9Sstevel@tonic-gate NULL, 0, error); 18687c478bd9Sstevel@tonic-gate break; 18697c478bd9Sstevel@tonic-gate } 18707c478bd9Sstevel@tonic-gate if (mp1) 1871fc80c0dfSnordmark putnext(q, mp1); 18727c478bd9Sstevel@tonic-gate freemsg(mp); 18737c478bd9Sstevel@tonic-gate } 18747c478bd9Sstevel@tonic-gate 18757c478bd9Sstevel@tonic-gate /* 18767c478bd9Sstevel@tonic-gate * udp_icmp_error_ipv6 is called by udp_icmp_error to process ICMP for IPv6. 18777c478bd9Sstevel@tonic-gate * Generates the appropriate T_UDERROR_IND for permanent (non-transient) errors. 18787c478bd9Sstevel@tonic-gate * Assumes that IP has pulled up all the extension headers as well as the 18797c478bd9Sstevel@tonic-gate * ICMPv6 header. 18807c478bd9Sstevel@tonic-gate */ 18817c478bd9Sstevel@tonic-gate static void 18827c478bd9Sstevel@tonic-gate udp_icmp_error_ipv6(queue_t *q, mblk_t *mp) 18837c478bd9Sstevel@tonic-gate { 18847c478bd9Sstevel@tonic-gate icmp6_t *icmp6; 18857c478bd9Sstevel@tonic-gate ip6_t *ip6h, *outer_ip6h; 1886fc80c0dfSnordmark uint16_t iph_hdr_length; 18877c478bd9Sstevel@tonic-gate uint8_t *nexthdrp; 18887c478bd9Sstevel@tonic-gate udpha_t *udpha; 18897c478bd9Sstevel@tonic-gate sin6_t sin6; 18907c478bd9Sstevel@tonic-gate mblk_t *mp1; 18917c478bd9Sstevel@tonic-gate int error = 0; 1892ff550d0eSmasputra udp_t *udp = Q_TO_UDP(q); 1893fc80c0dfSnordmark udp_stack_t *us = udp->udp_us; 18947c478bd9Sstevel@tonic-gate 18957c478bd9Sstevel@tonic-gate outer_ip6h = (ip6_t *)mp->b_rptr; 1896fc80c0dfSnordmark if (outer_ip6h->ip6_nxt != IPPROTO_ICMPV6) 1897fc80c0dfSnordmark iph_hdr_length = ip_hdr_length_v6(mp, outer_ip6h); 1898fc80c0dfSnordmark else 1899fc80c0dfSnordmark iph_hdr_length = IPV6_HDR_LEN; 1900fc80c0dfSnordmark icmp6 = (icmp6_t *)&mp->b_rptr[iph_hdr_length]; 19017c478bd9Sstevel@tonic-gate ip6h = (ip6_t *)&icmp6[1]; 1902fc80c0dfSnordmark if (!ip_hdr_length_nexthdr_v6(mp, ip6h, &iph_hdr_length, &nexthdrp)) { 1903fc80c0dfSnordmark freemsg(mp); 1904fc80c0dfSnordmark return; 19057c478bd9Sstevel@tonic-gate } 1906fc80c0dfSnordmark udpha = (udpha_t *)((char *)ip6h + iph_hdr_length); 19077c478bd9Sstevel@tonic-gate 19087c478bd9Sstevel@tonic-gate switch (icmp6->icmp6_type) { 19097c478bd9Sstevel@tonic-gate case ICMP6_DST_UNREACH: 19107c478bd9Sstevel@tonic-gate switch (icmp6->icmp6_code) { 19117c478bd9Sstevel@tonic-gate case ICMP6_DST_UNREACH_NOPORT: 19127c478bd9Sstevel@tonic-gate error = ECONNREFUSED; 19137c478bd9Sstevel@tonic-gate break; 19147c478bd9Sstevel@tonic-gate case ICMP6_DST_UNREACH_ADMIN: 19157c478bd9Sstevel@tonic-gate case ICMP6_DST_UNREACH_NOROUTE: 19167c478bd9Sstevel@tonic-gate case ICMP6_DST_UNREACH_BEYONDSCOPE: 19177c478bd9Sstevel@tonic-gate case ICMP6_DST_UNREACH_ADDR: 19187c478bd9Sstevel@tonic-gate /* Transient errors */ 19197c478bd9Sstevel@tonic-gate break; 19207c478bd9Sstevel@tonic-gate default: 19217c478bd9Sstevel@tonic-gate break; 19227c478bd9Sstevel@tonic-gate } 19237c478bd9Sstevel@tonic-gate break; 19247c478bd9Sstevel@tonic-gate case ICMP6_PACKET_TOO_BIG: { 19257c478bd9Sstevel@tonic-gate struct T_unitdata_ind *tudi; 19267c478bd9Sstevel@tonic-gate struct T_opthdr *toh; 19277c478bd9Sstevel@tonic-gate size_t udi_size; 19287c478bd9Sstevel@tonic-gate mblk_t *newmp; 19297c478bd9Sstevel@tonic-gate t_scalar_t opt_length = sizeof (struct T_opthdr) + 19307c478bd9Sstevel@tonic-gate sizeof (struct ip6_mtuinfo); 19317c478bd9Sstevel@tonic-gate sin6_t *sin6; 19327c478bd9Sstevel@tonic-gate struct ip6_mtuinfo *mtuinfo; 19337c478bd9Sstevel@tonic-gate 19347c478bd9Sstevel@tonic-gate /* 19357c478bd9Sstevel@tonic-gate * If the application has requested to receive path mtu 19367c478bd9Sstevel@tonic-gate * information, send up an empty message containing an 19377c478bd9Sstevel@tonic-gate * IPV6_PATHMTU ancillary data item. 19387c478bd9Sstevel@tonic-gate */ 19397c478bd9Sstevel@tonic-gate if (!udp->udp_ipv6_recvpathmtu) 19407c478bd9Sstevel@tonic-gate break; 19417c478bd9Sstevel@tonic-gate 19427c478bd9Sstevel@tonic-gate udi_size = sizeof (struct T_unitdata_ind) + sizeof (sin6_t) + 19437c478bd9Sstevel@tonic-gate opt_length; 19447c478bd9Sstevel@tonic-gate if ((newmp = allocb(udi_size, BPRI_MED)) == NULL) { 1945fc80c0dfSnordmark BUMP_MIB(&us->us_udp_mib, udpInErrors); 19467c478bd9Sstevel@tonic-gate break; 19477c478bd9Sstevel@tonic-gate } 19487c478bd9Sstevel@tonic-gate 19497c478bd9Sstevel@tonic-gate /* 19507c478bd9Sstevel@tonic-gate * newmp->b_cont is left to NULL on purpose. This is an 19517c478bd9Sstevel@tonic-gate * empty message containing only ancillary data. 19527c478bd9Sstevel@tonic-gate */ 19537c478bd9Sstevel@tonic-gate newmp->b_datap->db_type = M_PROTO; 19547c478bd9Sstevel@tonic-gate tudi = (struct T_unitdata_ind *)newmp->b_rptr; 19557c478bd9Sstevel@tonic-gate newmp->b_wptr = (uchar_t *)tudi + udi_size; 19567c478bd9Sstevel@tonic-gate tudi->PRIM_type = T_UNITDATA_IND; 19577c478bd9Sstevel@tonic-gate tudi->SRC_length = sizeof (sin6_t); 19587c478bd9Sstevel@tonic-gate tudi->SRC_offset = sizeof (struct T_unitdata_ind); 19597c478bd9Sstevel@tonic-gate tudi->OPT_offset = tudi->SRC_offset + sizeof (sin6_t); 19607c478bd9Sstevel@tonic-gate tudi->OPT_length = opt_length; 19617c478bd9Sstevel@tonic-gate 19627c478bd9Sstevel@tonic-gate sin6 = (sin6_t *)&tudi[1]; 19637c478bd9Sstevel@tonic-gate bzero(sin6, sizeof (sin6_t)); 19647c478bd9Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 19657c478bd9Sstevel@tonic-gate sin6->sin6_addr = udp->udp_v6dst; 19667c478bd9Sstevel@tonic-gate 19677c478bd9Sstevel@tonic-gate toh = (struct T_opthdr *)&sin6[1]; 19687c478bd9Sstevel@tonic-gate toh->level = IPPROTO_IPV6; 19697c478bd9Sstevel@tonic-gate toh->name = IPV6_PATHMTU; 19707c478bd9Sstevel@tonic-gate toh->len = opt_length; 19717c478bd9Sstevel@tonic-gate toh->status = 0; 19727c478bd9Sstevel@tonic-gate 19737c478bd9Sstevel@tonic-gate mtuinfo = (struct ip6_mtuinfo *)&toh[1]; 19747c478bd9Sstevel@tonic-gate bzero(mtuinfo, sizeof (struct ip6_mtuinfo)); 19757c478bd9Sstevel@tonic-gate mtuinfo->ip6m_addr.sin6_family = AF_INET6; 19767c478bd9Sstevel@tonic-gate mtuinfo->ip6m_addr.sin6_addr = ip6h->ip6_dst; 19777c478bd9Sstevel@tonic-gate mtuinfo->ip6m_mtu = icmp6->icmp6_mtu; 19787c478bd9Sstevel@tonic-gate /* 19797c478bd9Sstevel@tonic-gate * We've consumed everything we need from the original 19807c478bd9Sstevel@tonic-gate * message. Free it, then send our empty message. 19817c478bd9Sstevel@tonic-gate */ 19827c478bd9Sstevel@tonic-gate freemsg(mp); 1983fc80c0dfSnordmark putnext(q, newmp); 19847c478bd9Sstevel@tonic-gate return; 19857c478bd9Sstevel@tonic-gate } 19867c478bd9Sstevel@tonic-gate case ICMP6_TIME_EXCEEDED: 19877c478bd9Sstevel@tonic-gate /* Transient errors */ 19887c478bd9Sstevel@tonic-gate break; 19897c478bd9Sstevel@tonic-gate case ICMP6_PARAM_PROB: 19907c478bd9Sstevel@tonic-gate /* If this corresponds to an ICMP_PROTOCOL_UNREACHABLE */ 19917c478bd9Sstevel@tonic-gate if (icmp6->icmp6_code == ICMP6_PARAMPROB_NEXTHEADER && 19927c478bd9Sstevel@tonic-gate (uchar_t *)ip6h + icmp6->icmp6_pptr == 19937c478bd9Sstevel@tonic-gate (uchar_t *)nexthdrp) { 19947c478bd9Sstevel@tonic-gate error = ECONNREFUSED; 19957c478bd9Sstevel@tonic-gate break; 19967c478bd9Sstevel@tonic-gate } 19977c478bd9Sstevel@tonic-gate break; 19987c478bd9Sstevel@tonic-gate } 19997c478bd9Sstevel@tonic-gate if (error == 0) { 20007c478bd9Sstevel@tonic-gate freemsg(mp); 20017c478bd9Sstevel@tonic-gate return; 20027c478bd9Sstevel@tonic-gate } 20037c478bd9Sstevel@tonic-gate 2004fc80c0dfSnordmark /* 2005fc80c0dfSnordmark * Deliver T_UDERROR_IND when the application has asked for it. 2006fc80c0dfSnordmark * The socket layer enables this automatically when connected. 2007fc80c0dfSnordmark */ 2008fc80c0dfSnordmark if (!udp->udp_dgram_errind) { 2009fc80c0dfSnordmark freemsg(mp); 2010fc80c0dfSnordmark return; 2011fc80c0dfSnordmark } 2012fc80c0dfSnordmark 20137c478bd9Sstevel@tonic-gate sin6 = sin6_null; 20147c478bd9Sstevel@tonic-gate sin6.sin6_family = AF_INET6; 20157c478bd9Sstevel@tonic-gate sin6.sin6_addr = ip6h->ip6_dst; 20167c478bd9Sstevel@tonic-gate sin6.sin6_port = udpha->uha_dst_port; 20177c478bd9Sstevel@tonic-gate sin6.sin6_flowinfo = ip6h->ip6_vcf & ~IPV6_VERS_AND_FLOW_MASK; 20187c478bd9Sstevel@tonic-gate 20197c478bd9Sstevel@tonic-gate mp1 = mi_tpi_uderror_ind((char *)&sin6, sizeof (sin6_t), NULL, 0, 20207c478bd9Sstevel@tonic-gate error); 20217c478bd9Sstevel@tonic-gate if (mp1) 2022fc80c0dfSnordmark putnext(q, mp1); 20237c478bd9Sstevel@tonic-gate freemsg(mp); 20247c478bd9Sstevel@tonic-gate } 20257c478bd9Sstevel@tonic-gate 20267c478bd9Sstevel@tonic-gate /* 20277c478bd9Sstevel@tonic-gate * This routine responds to T_ADDR_REQ messages. It is called by udp_wput. 20287c478bd9Sstevel@tonic-gate * The local address is filled in if endpoint is bound. The remote address 20297c478bd9Sstevel@tonic-gate * is filled in if remote address has been precified ("connected endpoint") 20307c478bd9Sstevel@tonic-gate * (The concept of connected CLTS sockets is alien to published TPI 20317c478bd9Sstevel@tonic-gate * but we support it anyway). 20327c478bd9Sstevel@tonic-gate */ 20337c478bd9Sstevel@tonic-gate static void 20347c478bd9Sstevel@tonic-gate udp_addr_req(queue_t *q, mblk_t *mp) 20357c478bd9Sstevel@tonic-gate { 20367c478bd9Sstevel@tonic-gate sin_t *sin; 20377c478bd9Sstevel@tonic-gate sin6_t *sin6; 20387c478bd9Sstevel@tonic-gate mblk_t *ackmp; 20397c478bd9Sstevel@tonic-gate struct T_addr_ack *taa; 2040ff550d0eSmasputra udp_t *udp = Q_TO_UDP(q); 20417c478bd9Sstevel@tonic-gate 20427c478bd9Sstevel@tonic-gate /* Make it large enough for worst case */ 20437c478bd9Sstevel@tonic-gate ackmp = reallocb(mp, sizeof (struct T_addr_ack) + 20447c478bd9Sstevel@tonic-gate 2 * sizeof (sin6_t), 1); 20457c478bd9Sstevel@tonic-gate if (ackmp == NULL) { 20467c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TSYSERR, ENOMEM); 20477c478bd9Sstevel@tonic-gate return; 20487c478bd9Sstevel@tonic-gate } 20497c478bd9Sstevel@tonic-gate taa = (struct T_addr_ack *)ackmp->b_rptr; 20507c478bd9Sstevel@tonic-gate 20517c478bd9Sstevel@tonic-gate bzero(taa, sizeof (struct T_addr_ack)); 20527c478bd9Sstevel@tonic-gate ackmp->b_wptr = (uchar_t *)&taa[1]; 20537c478bd9Sstevel@tonic-gate 20547c478bd9Sstevel@tonic-gate taa->PRIM_type = T_ADDR_ACK; 20557c478bd9Sstevel@tonic-gate ackmp->b_datap->db_type = M_PCPROTO; 2056fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_READER); 20577c478bd9Sstevel@tonic-gate /* 20587c478bd9Sstevel@tonic-gate * Note: Following code assumes 32 bit alignment of basic 20597c478bd9Sstevel@tonic-gate * data structures like sin_t and struct T_addr_ack. 20607c478bd9Sstevel@tonic-gate */ 20617c478bd9Sstevel@tonic-gate if (udp->udp_state != TS_UNBND) { 20627c478bd9Sstevel@tonic-gate /* 20637c478bd9Sstevel@tonic-gate * Fill in local address first 20647c478bd9Sstevel@tonic-gate */ 20657c478bd9Sstevel@tonic-gate taa->LOCADDR_offset = sizeof (*taa); 20667c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) { 20677c478bd9Sstevel@tonic-gate taa->LOCADDR_length = sizeof (sin_t); 20687c478bd9Sstevel@tonic-gate sin = (sin_t *)&taa[1]; 20697c478bd9Sstevel@tonic-gate /* Fill zeroes and then initialize non-zero fields */ 20707c478bd9Sstevel@tonic-gate *sin = sin_null; 20717c478bd9Sstevel@tonic-gate sin->sin_family = AF_INET; 20727c478bd9Sstevel@tonic-gate if (!IN6_IS_ADDR_V4MAPPED_ANY(&udp->udp_v6src) && 20737c478bd9Sstevel@tonic-gate !IN6_IS_ADDR_UNSPECIFIED(&udp->udp_v6src)) { 20747c478bd9Sstevel@tonic-gate IN6_V4MAPPED_TO_IPADDR(&udp->udp_v6src, 20757c478bd9Sstevel@tonic-gate sin->sin_addr.s_addr); 20767c478bd9Sstevel@tonic-gate } else { 20777c478bd9Sstevel@tonic-gate /* 20787c478bd9Sstevel@tonic-gate * INADDR_ANY 20797c478bd9Sstevel@tonic-gate * udp_v6src is not set, we might be bound to 20807c478bd9Sstevel@tonic-gate * broadcast/multicast. Use udp_bound_v6src as 20817c478bd9Sstevel@tonic-gate * local address instead (that could 20827c478bd9Sstevel@tonic-gate * also still be INADDR_ANY) 20837c478bd9Sstevel@tonic-gate */ 20847c478bd9Sstevel@tonic-gate IN6_V4MAPPED_TO_IPADDR(&udp->udp_bound_v6src, 20857c478bd9Sstevel@tonic-gate sin->sin_addr.s_addr); 20867c478bd9Sstevel@tonic-gate } 20877c478bd9Sstevel@tonic-gate sin->sin_port = udp->udp_port; 20887c478bd9Sstevel@tonic-gate ackmp->b_wptr = (uchar_t *)&sin[1]; 20897c478bd9Sstevel@tonic-gate if (udp->udp_state == TS_DATA_XFER) { 20907c478bd9Sstevel@tonic-gate /* 20917c478bd9Sstevel@tonic-gate * connected, fill remote address too 20927c478bd9Sstevel@tonic-gate */ 20937c478bd9Sstevel@tonic-gate taa->REMADDR_length = sizeof (sin_t); 20947c478bd9Sstevel@tonic-gate /* assumed 32-bit alignment */ 20957c478bd9Sstevel@tonic-gate taa->REMADDR_offset = taa->LOCADDR_offset + 20967c478bd9Sstevel@tonic-gate taa->LOCADDR_length; 20977c478bd9Sstevel@tonic-gate 20987c478bd9Sstevel@tonic-gate sin = (sin_t *)(ackmp->b_rptr + 20997c478bd9Sstevel@tonic-gate taa->REMADDR_offset); 21007c478bd9Sstevel@tonic-gate /* initialize */ 21017c478bd9Sstevel@tonic-gate *sin = sin_null; 21027c478bd9Sstevel@tonic-gate sin->sin_family = AF_INET; 21037c478bd9Sstevel@tonic-gate sin->sin_addr.s_addr = 21047c478bd9Sstevel@tonic-gate V4_PART_OF_V6(udp->udp_v6dst); 21057c478bd9Sstevel@tonic-gate sin->sin_port = udp->udp_dstport; 21067c478bd9Sstevel@tonic-gate ackmp->b_wptr = (uchar_t *)&sin[1]; 21077c478bd9Sstevel@tonic-gate } 21087c478bd9Sstevel@tonic-gate } else { 21097c478bd9Sstevel@tonic-gate taa->LOCADDR_length = sizeof (sin6_t); 21107c478bd9Sstevel@tonic-gate sin6 = (sin6_t *)&taa[1]; 21117c478bd9Sstevel@tonic-gate /* Fill zeroes and then initialize non-zero fields */ 21127c478bd9Sstevel@tonic-gate *sin6 = sin6_null; 21137c478bd9Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 21147c478bd9Sstevel@tonic-gate if (!IN6_IS_ADDR_UNSPECIFIED(&udp->udp_v6src)) { 21157c478bd9Sstevel@tonic-gate sin6->sin6_addr = udp->udp_v6src; 21167c478bd9Sstevel@tonic-gate } else { 21177c478bd9Sstevel@tonic-gate /* 21187c478bd9Sstevel@tonic-gate * UNSPECIFIED 21197c478bd9Sstevel@tonic-gate * udp_v6src is not set, we might be bound to 21207c478bd9Sstevel@tonic-gate * broadcast/multicast. Use udp_bound_v6src as 21217c478bd9Sstevel@tonic-gate * local address instead (that could 21227c478bd9Sstevel@tonic-gate * also still be UNSPECIFIED) 21237c478bd9Sstevel@tonic-gate */ 21247c478bd9Sstevel@tonic-gate sin6->sin6_addr = 21257c478bd9Sstevel@tonic-gate udp->udp_bound_v6src; 21267c478bd9Sstevel@tonic-gate } 21277c478bd9Sstevel@tonic-gate sin6->sin6_port = udp->udp_port; 21287c478bd9Sstevel@tonic-gate ackmp->b_wptr = (uchar_t *)&sin6[1]; 21297c478bd9Sstevel@tonic-gate if (udp->udp_state == TS_DATA_XFER) { 21307c478bd9Sstevel@tonic-gate /* 21317c478bd9Sstevel@tonic-gate * connected, fill remote address too 21327c478bd9Sstevel@tonic-gate */ 21337c478bd9Sstevel@tonic-gate taa->REMADDR_length = sizeof (sin6_t); 21347c478bd9Sstevel@tonic-gate /* assumed 32-bit alignment */ 21357c478bd9Sstevel@tonic-gate taa->REMADDR_offset = taa->LOCADDR_offset + 21367c478bd9Sstevel@tonic-gate taa->LOCADDR_length; 21377c478bd9Sstevel@tonic-gate 21387c478bd9Sstevel@tonic-gate sin6 = (sin6_t *)(ackmp->b_rptr + 21397c478bd9Sstevel@tonic-gate taa->REMADDR_offset); 21407c478bd9Sstevel@tonic-gate /* initialize */ 21417c478bd9Sstevel@tonic-gate *sin6 = sin6_null; 21427c478bd9Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 21437c478bd9Sstevel@tonic-gate sin6->sin6_addr = udp->udp_v6dst; 21447c478bd9Sstevel@tonic-gate sin6->sin6_port = udp->udp_dstport; 21457c478bd9Sstevel@tonic-gate ackmp->b_wptr = (uchar_t *)&sin6[1]; 21467c478bd9Sstevel@tonic-gate } 21477c478bd9Sstevel@tonic-gate ackmp->b_wptr = (uchar_t *)&sin6[1]; 21487c478bd9Sstevel@tonic-gate } 21497c478bd9Sstevel@tonic-gate } 2150fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 21517c478bd9Sstevel@tonic-gate ASSERT(ackmp->b_wptr <= ackmp->b_datap->db_lim); 2152fc80c0dfSnordmark qreply(q, ackmp); 21537c478bd9Sstevel@tonic-gate } 21547c478bd9Sstevel@tonic-gate 21557c478bd9Sstevel@tonic-gate static void 21567c478bd9Sstevel@tonic-gate udp_copy_info(struct T_info_ack *tap, udp_t *udp) 21577c478bd9Sstevel@tonic-gate { 21587c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) { 21597c478bd9Sstevel@tonic-gate *tap = udp_g_t_info_ack_ipv4; 21607c478bd9Sstevel@tonic-gate } else { 21617c478bd9Sstevel@tonic-gate *tap = udp_g_t_info_ack_ipv6; 21627c478bd9Sstevel@tonic-gate } 21637c478bd9Sstevel@tonic-gate tap->CURRENT_state = udp->udp_state; 21647c478bd9Sstevel@tonic-gate tap->OPT_size = udp_max_optsize; 21657c478bd9Sstevel@tonic-gate } 21667c478bd9Sstevel@tonic-gate 21677c478bd9Sstevel@tonic-gate /* 21687c478bd9Sstevel@tonic-gate * This routine responds to T_CAPABILITY_REQ messages. It is called by 21697c478bd9Sstevel@tonic-gate * udp_wput. Much of the T_CAPABILITY_ACK information is copied from 21707c478bd9Sstevel@tonic-gate * udp_g_t_info_ack. The current state of the stream is copied from 21717c478bd9Sstevel@tonic-gate * udp_state. 21727c478bd9Sstevel@tonic-gate */ 21737c478bd9Sstevel@tonic-gate static void 21747c478bd9Sstevel@tonic-gate udp_capability_req(queue_t *q, mblk_t *mp) 21757c478bd9Sstevel@tonic-gate { 21767c478bd9Sstevel@tonic-gate t_uscalar_t cap_bits1; 21777c478bd9Sstevel@tonic-gate struct T_capability_ack *tcap; 2178ff550d0eSmasputra udp_t *udp = Q_TO_UDP(q); 21797c478bd9Sstevel@tonic-gate 21807c478bd9Sstevel@tonic-gate cap_bits1 = ((struct T_capability_req *)mp->b_rptr)->CAP_bits1; 21817c478bd9Sstevel@tonic-gate 21827c478bd9Sstevel@tonic-gate mp = tpi_ack_alloc(mp, sizeof (struct T_capability_ack), 21837c478bd9Sstevel@tonic-gate mp->b_datap->db_type, T_CAPABILITY_ACK); 21847c478bd9Sstevel@tonic-gate if (!mp) 21857c478bd9Sstevel@tonic-gate return; 21867c478bd9Sstevel@tonic-gate 21877c478bd9Sstevel@tonic-gate tcap = (struct T_capability_ack *)mp->b_rptr; 21887c478bd9Sstevel@tonic-gate tcap->CAP_bits1 = 0; 21897c478bd9Sstevel@tonic-gate 21907c478bd9Sstevel@tonic-gate if (cap_bits1 & TC1_INFO) { 21917c478bd9Sstevel@tonic-gate udp_copy_info(&tcap->INFO_ack, udp); 21927c478bd9Sstevel@tonic-gate tcap->CAP_bits1 |= TC1_INFO; 21937c478bd9Sstevel@tonic-gate } 21947c478bd9Sstevel@tonic-gate 2195fc80c0dfSnordmark qreply(q, mp); 21967c478bd9Sstevel@tonic-gate } 21977c478bd9Sstevel@tonic-gate 21987c478bd9Sstevel@tonic-gate /* 21997c478bd9Sstevel@tonic-gate * This routine responds to T_INFO_REQ messages. It is called by udp_wput. 22007c478bd9Sstevel@tonic-gate * Most of the T_INFO_ACK information is copied from udp_g_t_info_ack. 22017c478bd9Sstevel@tonic-gate * The current state of the stream is copied from udp_state. 22027c478bd9Sstevel@tonic-gate */ 22037c478bd9Sstevel@tonic-gate static void 22047c478bd9Sstevel@tonic-gate udp_info_req(queue_t *q, mblk_t *mp) 22057c478bd9Sstevel@tonic-gate { 2206ff550d0eSmasputra udp_t *udp = Q_TO_UDP(q); 22077c478bd9Sstevel@tonic-gate 22087c478bd9Sstevel@tonic-gate /* Create a T_INFO_ACK message. */ 22097c478bd9Sstevel@tonic-gate mp = tpi_ack_alloc(mp, sizeof (struct T_info_ack), M_PCPROTO, 22107c478bd9Sstevel@tonic-gate T_INFO_ACK); 22117c478bd9Sstevel@tonic-gate if (!mp) 22127c478bd9Sstevel@tonic-gate return; 22137c478bd9Sstevel@tonic-gate udp_copy_info((struct T_info_ack *)mp->b_rptr, udp); 2214fc80c0dfSnordmark qreply(q, mp); 22157c478bd9Sstevel@tonic-gate } 22167c478bd9Sstevel@tonic-gate 22177c478bd9Sstevel@tonic-gate /* 22187c478bd9Sstevel@tonic-gate * IP recognizes seven kinds of bind requests: 22197c478bd9Sstevel@tonic-gate * 22207c478bd9Sstevel@tonic-gate * - A zero-length address binds only to the protocol number. 22217c478bd9Sstevel@tonic-gate * 22227c478bd9Sstevel@tonic-gate * - A 4-byte address is treated as a request to 22237c478bd9Sstevel@tonic-gate * validate that the address is a valid local IPv4 22247c478bd9Sstevel@tonic-gate * address, appropriate for an application to bind to. 22257c478bd9Sstevel@tonic-gate * IP does the verification, but does not make any note 22267c478bd9Sstevel@tonic-gate * of the address at this time. 22277c478bd9Sstevel@tonic-gate * 22287c478bd9Sstevel@tonic-gate * - A 16-byte address contains is treated as a request 22297c478bd9Sstevel@tonic-gate * to validate a local IPv6 address, as the 4-byte 22307c478bd9Sstevel@tonic-gate * address case above. 22317c478bd9Sstevel@tonic-gate * 22327c478bd9Sstevel@tonic-gate * - A 16-byte sockaddr_in to validate the local IPv4 address and also 22337c478bd9Sstevel@tonic-gate * use it for the inbound fanout of packets. 22347c478bd9Sstevel@tonic-gate * 22357c478bd9Sstevel@tonic-gate * - A 24-byte sockaddr_in6 to validate the local IPv6 address and also 22367c478bd9Sstevel@tonic-gate * use it for the inbound fanout of packets. 22377c478bd9Sstevel@tonic-gate * 22387c478bd9Sstevel@tonic-gate * - A 12-byte address (ipa_conn_t) containing complete IPv4 fanout 22397c478bd9Sstevel@tonic-gate * information consisting of local and remote addresses 22407c478bd9Sstevel@tonic-gate * and ports. In this case, the addresses are both 22417c478bd9Sstevel@tonic-gate * validated as appropriate for this operation, and, if 22427c478bd9Sstevel@tonic-gate * so, the information is retained for use in the 22437c478bd9Sstevel@tonic-gate * inbound fanout. 22447c478bd9Sstevel@tonic-gate * 22457c478bd9Sstevel@tonic-gate * - A 36-byte address address (ipa6_conn_t) containing complete IPv6 22467c478bd9Sstevel@tonic-gate * fanout information, like the 12-byte case above. 22477c478bd9Sstevel@tonic-gate * 22487c478bd9Sstevel@tonic-gate * IP will also fill in the IRE request mblk with information 22497c478bd9Sstevel@tonic-gate * regarding our peer. In all cases, we notify IP of our protocol 22507c478bd9Sstevel@tonic-gate * type by appending a single protocol byte to the bind request. 22517c478bd9Sstevel@tonic-gate */ 22527c478bd9Sstevel@tonic-gate static mblk_t * 22537c478bd9Sstevel@tonic-gate udp_ip_bind_mp(udp_t *udp, t_scalar_t bind_prim, t_scalar_t addr_length) 22547c478bd9Sstevel@tonic-gate { 22557c478bd9Sstevel@tonic-gate char *cp; 22567c478bd9Sstevel@tonic-gate mblk_t *mp; 22577c478bd9Sstevel@tonic-gate struct T_bind_req *tbr; 22587c478bd9Sstevel@tonic-gate ipa_conn_t *ac; 22597c478bd9Sstevel@tonic-gate ipa6_conn_t *ac6; 22607c478bd9Sstevel@tonic-gate sin_t *sin; 22617c478bd9Sstevel@tonic-gate sin6_t *sin6; 22627c478bd9Sstevel@tonic-gate 22637c478bd9Sstevel@tonic-gate ASSERT(bind_prim == O_T_BIND_REQ || bind_prim == T_BIND_REQ); 2264fc80c0dfSnordmark ASSERT(RW_LOCK_HELD(&udp->udp_rwlock)); 22657c478bd9Sstevel@tonic-gate mp = allocb(sizeof (*tbr) + addr_length + 1, BPRI_HI); 22667c478bd9Sstevel@tonic-gate if (!mp) 22677c478bd9Sstevel@tonic-gate return (mp); 22687c478bd9Sstevel@tonic-gate mp->b_datap->db_type = M_PROTO; 22697c478bd9Sstevel@tonic-gate tbr = (struct T_bind_req *)mp->b_rptr; 22707c478bd9Sstevel@tonic-gate tbr->PRIM_type = bind_prim; 22717c478bd9Sstevel@tonic-gate tbr->ADDR_offset = sizeof (*tbr); 22727c478bd9Sstevel@tonic-gate tbr->CONIND_number = 0; 22737c478bd9Sstevel@tonic-gate tbr->ADDR_length = addr_length; 22747c478bd9Sstevel@tonic-gate cp = (char *)&tbr[1]; 22757c478bd9Sstevel@tonic-gate switch (addr_length) { 22767c478bd9Sstevel@tonic-gate case sizeof (ipa_conn_t): 22777c478bd9Sstevel@tonic-gate ASSERT(udp->udp_family == AF_INET); 22787c478bd9Sstevel@tonic-gate /* Append a request for an IRE */ 22797c478bd9Sstevel@tonic-gate mp->b_cont = allocb(sizeof (ire_t), BPRI_HI); 22807c478bd9Sstevel@tonic-gate if (!mp->b_cont) { 22817c478bd9Sstevel@tonic-gate freemsg(mp); 22827c478bd9Sstevel@tonic-gate return (NULL); 22837c478bd9Sstevel@tonic-gate } 22847c478bd9Sstevel@tonic-gate mp->b_cont->b_wptr += sizeof (ire_t); 22857c478bd9Sstevel@tonic-gate mp->b_cont->b_datap->db_type = IRE_DB_REQ_TYPE; 22867c478bd9Sstevel@tonic-gate 22877c478bd9Sstevel@tonic-gate /* cp known to be 32 bit aligned */ 22887c478bd9Sstevel@tonic-gate ac = (ipa_conn_t *)cp; 22897c478bd9Sstevel@tonic-gate ac->ac_laddr = V4_PART_OF_V6(udp->udp_v6src); 22907c478bd9Sstevel@tonic-gate ac->ac_faddr = V4_PART_OF_V6(udp->udp_v6dst); 22917c478bd9Sstevel@tonic-gate ac->ac_fport = udp->udp_dstport; 22927c478bd9Sstevel@tonic-gate ac->ac_lport = udp->udp_port; 22937c478bd9Sstevel@tonic-gate break; 22947c478bd9Sstevel@tonic-gate 22957c478bd9Sstevel@tonic-gate case sizeof (ipa6_conn_t): 22967c478bd9Sstevel@tonic-gate ASSERT(udp->udp_family == AF_INET6); 22977c478bd9Sstevel@tonic-gate /* Append a request for an IRE */ 22987c478bd9Sstevel@tonic-gate mp->b_cont = allocb(sizeof (ire_t), BPRI_HI); 22997c478bd9Sstevel@tonic-gate if (!mp->b_cont) { 23007c478bd9Sstevel@tonic-gate freemsg(mp); 23017c478bd9Sstevel@tonic-gate return (NULL); 23027c478bd9Sstevel@tonic-gate } 23037c478bd9Sstevel@tonic-gate mp->b_cont->b_wptr += sizeof (ire_t); 23047c478bd9Sstevel@tonic-gate mp->b_cont->b_datap->db_type = IRE_DB_REQ_TYPE; 23057c478bd9Sstevel@tonic-gate 23067c478bd9Sstevel@tonic-gate /* cp known to be 32 bit aligned */ 23077c478bd9Sstevel@tonic-gate ac6 = (ipa6_conn_t *)cp; 23087c478bd9Sstevel@tonic-gate ac6->ac6_laddr = udp->udp_v6src; 23097c478bd9Sstevel@tonic-gate ac6->ac6_faddr = udp->udp_v6dst; 23107c478bd9Sstevel@tonic-gate ac6->ac6_fport = udp->udp_dstport; 23117c478bd9Sstevel@tonic-gate ac6->ac6_lport = udp->udp_port; 23127c478bd9Sstevel@tonic-gate break; 23137c478bd9Sstevel@tonic-gate 23147c478bd9Sstevel@tonic-gate case sizeof (sin_t): 23157c478bd9Sstevel@tonic-gate ASSERT(udp->udp_family == AF_INET); 23167c478bd9Sstevel@tonic-gate /* Append a request for an IRE */ 23177c478bd9Sstevel@tonic-gate mp->b_cont = allocb(sizeof (ire_t), BPRI_HI); 23187c478bd9Sstevel@tonic-gate if (!mp->b_cont) { 23197c478bd9Sstevel@tonic-gate freemsg(mp); 23207c478bd9Sstevel@tonic-gate return (NULL); 23217c478bd9Sstevel@tonic-gate } 23227c478bd9Sstevel@tonic-gate mp->b_cont->b_wptr += sizeof (ire_t); 23237c478bd9Sstevel@tonic-gate mp->b_cont->b_datap->db_type = IRE_DB_REQ_TYPE; 23247c478bd9Sstevel@tonic-gate 23257c478bd9Sstevel@tonic-gate sin = (sin_t *)cp; 23267c478bd9Sstevel@tonic-gate *sin = sin_null; 23277c478bd9Sstevel@tonic-gate sin->sin_family = AF_INET; 23287c478bd9Sstevel@tonic-gate sin->sin_addr.s_addr = V4_PART_OF_V6(udp->udp_bound_v6src); 23297c478bd9Sstevel@tonic-gate sin->sin_port = udp->udp_port; 23307c478bd9Sstevel@tonic-gate break; 23317c478bd9Sstevel@tonic-gate 23327c478bd9Sstevel@tonic-gate case sizeof (sin6_t): 23337c478bd9Sstevel@tonic-gate ASSERT(udp->udp_family == AF_INET6); 23347c478bd9Sstevel@tonic-gate /* Append a request for an IRE */ 23357c478bd9Sstevel@tonic-gate mp->b_cont = allocb(sizeof (ire_t), BPRI_HI); 23367c478bd9Sstevel@tonic-gate if (!mp->b_cont) { 23377c478bd9Sstevel@tonic-gate freemsg(mp); 23387c478bd9Sstevel@tonic-gate return (NULL); 23397c478bd9Sstevel@tonic-gate } 23407c478bd9Sstevel@tonic-gate mp->b_cont->b_wptr += sizeof (ire_t); 23417c478bd9Sstevel@tonic-gate mp->b_cont->b_datap->db_type = IRE_DB_REQ_TYPE; 23427c478bd9Sstevel@tonic-gate 23437c478bd9Sstevel@tonic-gate sin6 = (sin6_t *)cp; 23447c478bd9Sstevel@tonic-gate *sin6 = sin6_null; 23457c478bd9Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 23467c478bd9Sstevel@tonic-gate sin6->sin6_addr = udp->udp_bound_v6src; 23477c478bd9Sstevel@tonic-gate sin6->sin6_port = udp->udp_port; 23487c478bd9Sstevel@tonic-gate break; 23497c478bd9Sstevel@tonic-gate } 23507c478bd9Sstevel@tonic-gate /* Add protocol number to end */ 23517c478bd9Sstevel@tonic-gate cp[addr_length] = (char)IPPROTO_UDP; 23527c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)&cp[addr_length + 1]; 23537c478bd9Sstevel@tonic-gate return (mp); 23547c478bd9Sstevel@tonic-gate } 23557c478bd9Sstevel@tonic-gate 2356fc80c0dfSnordmark /* For /dev/udp aka AF_INET open */ 2357fc80c0dfSnordmark static int 2358fc80c0dfSnordmark udp_openv4(queue_t *q, dev_t *devp, int flag, int sflag, cred_t *credp) 2359fc80c0dfSnordmark { 2360fc80c0dfSnordmark return (udp_open(q, devp, flag, sflag, credp, B_FALSE)); 2361fc80c0dfSnordmark } 2362fc80c0dfSnordmark 2363fc80c0dfSnordmark /* For /dev/udp6 aka AF_INET6 open */ 2364fc80c0dfSnordmark static int 2365fc80c0dfSnordmark udp_openv6(queue_t *q, dev_t *devp, int flag, int sflag, cred_t *credp) 2366fc80c0dfSnordmark { 2367fc80c0dfSnordmark return (udp_open(q, devp, flag, sflag, credp, B_TRUE)); 2368fc80c0dfSnordmark } 2369fc80c0dfSnordmark 23707c478bd9Sstevel@tonic-gate /* 23717c478bd9Sstevel@tonic-gate * This is the open routine for udp. It allocates a udp_t structure for 23727c478bd9Sstevel@tonic-gate * the stream and, on the first open of the module, creates an ND table. 23737c478bd9Sstevel@tonic-gate */ 2374fc80c0dfSnordmark /*ARGSUSED2*/ 23757c478bd9Sstevel@tonic-gate static int 2376fc80c0dfSnordmark udp_open(queue_t *q, dev_t *devp, int flag, int sflag, cred_t *credp, 2377fc80c0dfSnordmark boolean_t isv6) 23787c478bd9Sstevel@tonic-gate { 2379*aa92d85bSgt int err; 2380*aa92d85bSgt udp_t *udp; 2381*aa92d85bSgt conn_t *connp; 2382*aa92d85bSgt dev_t conn_dev; 2383*aa92d85bSgt zoneid_t zoneid; 2384*aa92d85bSgt netstack_t *ns; 2385*aa92d85bSgt udp_stack_t *us; 2386*aa92d85bSgt vmem_t *minor_arena; 23877c478bd9Sstevel@tonic-gate 23887c478bd9Sstevel@tonic-gate TRACE_1(TR_FAC_UDP, TR_UDP_OPEN, "udp_open: q %p", q); 23897c478bd9Sstevel@tonic-gate 23907c478bd9Sstevel@tonic-gate /* If the stream is already open, return immediately. */ 23917c478bd9Sstevel@tonic-gate if (q->q_ptr != NULL) 23927c478bd9Sstevel@tonic-gate return (0); 23937c478bd9Sstevel@tonic-gate 2394fc80c0dfSnordmark if (sflag == MODOPEN) 23957c478bd9Sstevel@tonic-gate return (EINVAL); 23967c478bd9Sstevel@tonic-gate 2397f4b3ec61Sdh ns = netstack_find_by_cred(credp); 2398f4b3ec61Sdh ASSERT(ns != NULL); 2399f4b3ec61Sdh us = ns->netstack_udp; 2400f4b3ec61Sdh ASSERT(us != NULL); 2401f4b3ec61Sdh 2402f4b3ec61Sdh /* 2403f4b3ec61Sdh * For exclusive stacks we set the zoneid to zero 2404f4b3ec61Sdh * to make UDP operate as if in the global zone. 2405f4b3ec61Sdh */ 2406fc80c0dfSnordmark if (ns->netstack_stackid != GLOBAL_NETSTACKID) 2407f4b3ec61Sdh zoneid = GLOBAL_ZONEID; 2408f4b3ec61Sdh else 2409f4b3ec61Sdh zoneid = crgetzoneid(credp); 2410f4b3ec61Sdh 2411*aa92d85bSgt if ((ip_minor_arena_la != NULL) && (flag & SO_SOCKSTR) && 2412*aa92d85bSgt ((conn_dev = inet_minor_alloc(ip_minor_arena_la)) != 0)) { 2413*aa92d85bSgt minor_arena = ip_minor_arena_la; 2414*aa92d85bSgt } else { 2415*aa92d85bSgt /* 2416*aa92d85bSgt * Either minor numbers in the large arena were exhausted 2417*aa92d85bSgt * or a non socket application is doing the open. 2418*aa92d85bSgt * Try to allocate from the small arena. 2419*aa92d85bSgt */ 2420*aa92d85bSgt if ((conn_dev = inet_minor_alloc(ip_minor_arena_sa)) == 0) { 2421*aa92d85bSgt netstack_rele(ns); 2422*aa92d85bSgt return (EBUSY); 2423*aa92d85bSgt } 2424*aa92d85bSgt minor_arena = ip_minor_arena_sa; 2425fc80c0dfSnordmark } 2426*aa92d85bSgt 2427fc80c0dfSnordmark *devp = makedevice(getemajor(*devp), (minor_t)conn_dev); 2428ff550d0eSmasputra 2429fc80c0dfSnordmark connp = ipcl_conn_create(IPCL_UDPCONN, KM_SLEEP, ns); 2430fc80c0dfSnordmark connp->conn_dev = conn_dev; 2431*aa92d85bSgt connp->conn_minor_arena = minor_arena; 2432fc80c0dfSnordmark udp = connp->conn_udp; 2433ff550d0eSmasputra 2434ff550d0eSmasputra /* 2435fc80c0dfSnordmark * ipcl_conn_create did a netstack_hold. Undo the hold that was 2436fc80c0dfSnordmark * done by netstack_find_by_cred() 2437ff550d0eSmasputra */ 2438fc80c0dfSnordmark netstack_rele(ns); 2439ff550d0eSmasputra 24407c478bd9Sstevel@tonic-gate /* 2441ff550d0eSmasputra * Initialize the udp_t structure for this stream. 24427c478bd9Sstevel@tonic-gate */ 2443fc80c0dfSnordmark q->q_ptr = connp; 2444fc80c0dfSnordmark WR(q)->q_ptr = connp; 2445fc80c0dfSnordmark connp->conn_rq = q; 2446fc80c0dfSnordmark connp->conn_wq = WR(q); 2447fc80c0dfSnordmark 2448fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 2449fc80c0dfSnordmark ASSERT(connp->conn_ulp == IPPROTO_UDP); 2450fc80c0dfSnordmark ASSERT(connp->conn_udp == udp); 2451fc80c0dfSnordmark ASSERT(udp->udp_connp == connp); 24527c478bd9Sstevel@tonic-gate 24537c478bd9Sstevel@tonic-gate /* Set the initial state of the stream and the privilege status. */ 24547c478bd9Sstevel@tonic-gate udp->udp_state = TS_UNBND; 2455fc80c0dfSnordmark if (isv6) { 24567c478bd9Sstevel@tonic-gate udp->udp_family = AF_INET6; 24577c478bd9Sstevel@tonic-gate udp->udp_ipversion = IPV6_VERSION; 24587c478bd9Sstevel@tonic-gate udp->udp_max_hdr_len = IPV6_HDR_LEN + UDPH_SIZE; 2459f4b3ec61Sdh udp->udp_ttl = us->us_ipv6_hoplimit; 2460ff550d0eSmasputra connp->conn_af_isv6 = B_TRUE; 2461ff550d0eSmasputra connp->conn_flags |= IPCL_ISV6; 24627c478bd9Sstevel@tonic-gate } else { 24637c478bd9Sstevel@tonic-gate udp->udp_family = AF_INET; 24647c478bd9Sstevel@tonic-gate udp->udp_ipversion = IPV4_VERSION; 24657c478bd9Sstevel@tonic-gate udp->udp_max_hdr_len = IP_SIMPLE_HDR_LENGTH + UDPH_SIZE; 2466f4b3ec61Sdh udp->udp_ttl = us->us_ipv4_ttl; 2467ff550d0eSmasputra connp->conn_af_isv6 = B_FALSE; 2468ff550d0eSmasputra connp->conn_flags &= ~IPCL_ISV6; 24697c478bd9Sstevel@tonic-gate } 24707c478bd9Sstevel@tonic-gate 24717c478bd9Sstevel@tonic-gate udp->udp_multicast_ttl = IP_DEFAULT_MULTICAST_TTL; 2472fc80c0dfSnordmark udp->udp_pending_op = -1; 2473ff550d0eSmasputra connp->conn_multicast_loop = IP_DEFAULT_MULTICAST_LOOP; 2474ff550d0eSmasputra connp->conn_zoneid = zoneid; 24757c478bd9Sstevel@tonic-gate 24763173664eSapersson udp->udp_open_time = lbolt64; 24773173664eSapersson udp->udp_open_pid = curproc->p_pid; 24783173664eSapersson 247945916cd2Sjpk /* 248045916cd2Sjpk * If the caller has the process-wide flag set, then default to MAC 248145916cd2Sjpk * exempt mode. This allows read-down to unlabeled hosts. 248245916cd2Sjpk */ 248345916cd2Sjpk if (getpflags(NET_MAC_AWARE, credp) != 0) 248445916cd2Sjpk udp->udp_mac_exempt = B_TRUE; 248545916cd2Sjpk 2486fc80c0dfSnordmark if (flag & SO_SOCKSTR) { 2487fc80c0dfSnordmark connp->conn_flags |= IPCL_SOCKET; 2488ff550d0eSmasputra udp->udp_issocket = B_TRUE; 2489ff550d0eSmasputra udp->udp_direct_sockfs = B_TRUE; 2490ff550d0eSmasputra } 249145916cd2Sjpk 249245916cd2Sjpk connp->conn_ulp_labeled = is_system_labeled(); 249345916cd2Sjpk 2494f4b3ec61Sdh udp->udp_us = us; 24957c478bd9Sstevel@tonic-gate 2496f4b3ec61Sdh q->q_hiwat = us->us_recv_hiwat; 2497f4b3ec61Sdh WR(q)->q_hiwat = us->us_xmit_hiwat; 2498f4b3ec61Sdh WR(q)->q_lowat = us->us_xmit_lowat; 24997c478bd9Sstevel@tonic-gate 2500fc80c0dfSnordmark connp->conn_recv = udp_input; 2501fc80c0dfSnordmark crhold(credp); 2502fc80c0dfSnordmark connp->conn_cred = credp; 2503fc80c0dfSnordmark 2504fc80c0dfSnordmark mutex_enter(&connp->conn_lock); 2505fc80c0dfSnordmark connp->conn_state_flags &= ~CONN_INCIPIENT; 2506fc80c0dfSnordmark mutex_exit(&connp->conn_lock); 2507fc80c0dfSnordmark 2508fc80c0dfSnordmark qprocson(q); 2509fc80c0dfSnordmark 25107c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET6) { 25117c478bd9Sstevel@tonic-gate /* Build initial header template for transmit */ 2512fc80c0dfSnordmark if ((err = udp_build_hdrs(udp)) != 0) { 2513fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 2514fc80c0dfSnordmark qprocsoff(q); 2515fc80c0dfSnordmark ipcl_conn_destroy(connp); 2516ff550d0eSmasputra return (err); 25177c478bd9Sstevel@tonic-gate } 25187c478bd9Sstevel@tonic-gate } 2519fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 25207c478bd9Sstevel@tonic-gate 2521ff550d0eSmasputra /* Set the Stream head write offset and high watermark. */ 2522fc80c0dfSnordmark (void) mi_set_sth_wroff(q, 2523f4b3ec61Sdh udp->udp_max_hdr_len + us->us_wroff_extra); 2524fc80c0dfSnordmark (void) mi_set_sth_hiwat(q, udp_set_rcv_hiwat(udp, q->q_hiwat)); 25257c478bd9Sstevel@tonic-gate 2526ff550d0eSmasputra return (0); 25277c478bd9Sstevel@tonic-gate } 25287c478bd9Sstevel@tonic-gate 25297c478bd9Sstevel@tonic-gate /* 25307c478bd9Sstevel@tonic-gate * Which UDP options OK to set through T_UNITDATA_REQ... 25317c478bd9Sstevel@tonic-gate */ 25327c478bd9Sstevel@tonic-gate /* ARGSUSED */ 25337c478bd9Sstevel@tonic-gate static boolean_t 25347c478bd9Sstevel@tonic-gate udp_opt_allow_udr_set(t_scalar_t level, t_scalar_t name) 25357c478bd9Sstevel@tonic-gate { 25367c478bd9Sstevel@tonic-gate return (B_TRUE); 25377c478bd9Sstevel@tonic-gate } 25387c478bd9Sstevel@tonic-gate 25397c478bd9Sstevel@tonic-gate /* 25407c478bd9Sstevel@tonic-gate * This routine gets default values of certain options whose default 25417c478bd9Sstevel@tonic-gate * values are maintained by protcol specific code 25427c478bd9Sstevel@tonic-gate */ 25437c478bd9Sstevel@tonic-gate /* ARGSUSED */ 25447c478bd9Sstevel@tonic-gate int 2545fc80c0dfSnordmark udp_opt_default(queue_t *q, t_scalar_t level, t_scalar_t name, uchar_t *ptr) 25467c478bd9Sstevel@tonic-gate { 2547f4b3ec61Sdh udp_t *udp = Q_TO_UDP(q); 2548f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 25497c478bd9Sstevel@tonic-gate int *i1 = (int *)ptr; 25507c478bd9Sstevel@tonic-gate 25517c478bd9Sstevel@tonic-gate switch (level) { 25527c478bd9Sstevel@tonic-gate case IPPROTO_IP: 25537c478bd9Sstevel@tonic-gate switch (name) { 25547c478bd9Sstevel@tonic-gate case IP_MULTICAST_TTL: 25557c478bd9Sstevel@tonic-gate *ptr = (uchar_t)IP_DEFAULT_MULTICAST_TTL; 25567c478bd9Sstevel@tonic-gate return (sizeof (uchar_t)); 25577c478bd9Sstevel@tonic-gate case IP_MULTICAST_LOOP: 25587c478bd9Sstevel@tonic-gate *ptr = (uchar_t)IP_DEFAULT_MULTICAST_LOOP; 25597c478bd9Sstevel@tonic-gate return (sizeof (uchar_t)); 25607c478bd9Sstevel@tonic-gate } 25617c478bd9Sstevel@tonic-gate break; 25627c478bd9Sstevel@tonic-gate case IPPROTO_IPV6: 25637c478bd9Sstevel@tonic-gate switch (name) { 25647c478bd9Sstevel@tonic-gate case IPV6_MULTICAST_HOPS: 25657c478bd9Sstevel@tonic-gate *i1 = IP_DEFAULT_MULTICAST_TTL; 25667c478bd9Sstevel@tonic-gate return (sizeof (int)); 25677c478bd9Sstevel@tonic-gate case IPV6_MULTICAST_LOOP: 25687c478bd9Sstevel@tonic-gate *i1 = IP_DEFAULT_MULTICAST_LOOP; 25697c478bd9Sstevel@tonic-gate return (sizeof (int)); 25707c478bd9Sstevel@tonic-gate case IPV6_UNICAST_HOPS: 2571f4b3ec61Sdh *i1 = us->us_ipv6_hoplimit; 25727c478bd9Sstevel@tonic-gate return (sizeof (int)); 25737c478bd9Sstevel@tonic-gate } 25747c478bd9Sstevel@tonic-gate break; 25757c478bd9Sstevel@tonic-gate } 25767c478bd9Sstevel@tonic-gate return (-1); 25777c478bd9Sstevel@tonic-gate } 25787c478bd9Sstevel@tonic-gate 25797c478bd9Sstevel@tonic-gate /* 2580fc80c0dfSnordmark * This routine retrieves the current status of socket options. 2581fc80c0dfSnordmark * It returns the size of the option retrieved. 25827c478bd9Sstevel@tonic-gate */ 25837c478bd9Sstevel@tonic-gate int 2584fc80c0dfSnordmark udp_opt_get_locked(queue_t *q, t_scalar_t level, t_scalar_t name, uchar_t *ptr) 25857c478bd9Sstevel@tonic-gate { 25867c478bd9Sstevel@tonic-gate int *i1 = (int *)ptr; 2587ff550d0eSmasputra conn_t *connp; 2588ff550d0eSmasputra udp_t *udp; 2589ff550d0eSmasputra ip6_pkt_t *ipp; 259045916cd2Sjpk int len; 2591f4b3ec61Sdh udp_stack_t *us; 2592ff550d0eSmasputra 2593ff550d0eSmasputra connp = Q_TO_CONN(q); 2594ff550d0eSmasputra udp = connp->conn_udp; 2595ff550d0eSmasputra ipp = &udp->udp_sticky_ipp; 2596f4b3ec61Sdh us = udp->udp_us; 25977c478bd9Sstevel@tonic-gate 25987c478bd9Sstevel@tonic-gate switch (level) { 25997c478bd9Sstevel@tonic-gate case SOL_SOCKET: 26007c478bd9Sstevel@tonic-gate switch (name) { 26017c478bd9Sstevel@tonic-gate case SO_DEBUG: 26027c478bd9Sstevel@tonic-gate *i1 = udp->udp_debug; 26037c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 26047c478bd9Sstevel@tonic-gate case SO_REUSEADDR: 26057c478bd9Sstevel@tonic-gate *i1 = udp->udp_reuseaddr; 26067c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 26077c478bd9Sstevel@tonic-gate case SO_TYPE: 26087c478bd9Sstevel@tonic-gate *i1 = SOCK_DGRAM; 26097c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 26107c478bd9Sstevel@tonic-gate 26117c478bd9Sstevel@tonic-gate /* 26127c478bd9Sstevel@tonic-gate * The following three items are available here, 26137c478bd9Sstevel@tonic-gate * but are only meaningful to IP. 26147c478bd9Sstevel@tonic-gate */ 26157c478bd9Sstevel@tonic-gate case SO_DONTROUTE: 26167c478bd9Sstevel@tonic-gate *i1 = udp->udp_dontroute; 26177c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 26187c478bd9Sstevel@tonic-gate case SO_USELOOPBACK: 26197c478bd9Sstevel@tonic-gate *i1 = udp->udp_useloopback; 26207c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 26217c478bd9Sstevel@tonic-gate case SO_BROADCAST: 26227c478bd9Sstevel@tonic-gate *i1 = udp->udp_broadcast; 26237c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 26247c478bd9Sstevel@tonic-gate 26257c478bd9Sstevel@tonic-gate case SO_SNDBUF: 26267c478bd9Sstevel@tonic-gate *i1 = q->q_hiwat; 26277c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 26287c478bd9Sstevel@tonic-gate case SO_RCVBUF: 26297c478bd9Sstevel@tonic-gate *i1 = RD(q)->q_hiwat; 26307c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 26317c478bd9Sstevel@tonic-gate case SO_DGRAM_ERRIND: 26327c478bd9Sstevel@tonic-gate *i1 = udp->udp_dgram_errind; 26337c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 26347c478bd9Sstevel@tonic-gate case SO_RECVUCRED: 26357c478bd9Sstevel@tonic-gate *i1 = udp->udp_recvucred; 26367c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 2637e4f35dbaSgt case SO_TIMESTAMP: 2638e4f35dbaSgt *i1 = udp->udp_timestamp; 26395d0bc3edSsommerfe break; /* goto sizeof (int) option return */ 264045916cd2Sjpk case SO_ANON_MLP: 264145916cd2Sjpk *i1 = udp->udp_anon_mlp; 264245916cd2Sjpk break; /* goto sizeof (int) option return */ 264345916cd2Sjpk case SO_MAC_EXEMPT: 264445916cd2Sjpk *i1 = udp->udp_mac_exempt; 264545916cd2Sjpk break; /* goto sizeof (int) option return */ 26465d0bc3edSsommerfe case SO_ALLZONES: 26475d0bc3edSsommerfe *i1 = connp->conn_allzones; 26485d0bc3edSsommerfe break; /* goto sizeof (int) option return */ 2649ae347574Skcpoon case SO_EXCLBIND: 2650ae347574Skcpoon *i1 = udp->udp_exclbind ? SO_EXCLBIND : 0; 2651ae347574Skcpoon break; 265288cda078Skcpoon case SO_PROTOTYPE: 265388cda078Skcpoon *i1 = IPPROTO_UDP; 265488cda078Skcpoon break; 265588cda078Skcpoon case SO_DOMAIN: 265688cda078Skcpoon *i1 = udp->udp_family; 265788cda078Skcpoon break; 26587c478bd9Sstevel@tonic-gate default: 26597c478bd9Sstevel@tonic-gate return (-1); 26607c478bd9Sstevel@tonic-gate } 26617c478bd9Sstevel@tonic-gate break; 26627c478bd9Sstevel@tonic-gate case IPPROTO_IP: 26637c478bd9Sstevel@tonic-gate if (udp->udp_family != AF_INET) 26647c478bd9Sstevel@tonic-gate return (-1); 26657c478bd9Sstevel@tonic-gate switch (name) { 26667c478bd9Sstevel@tonic-gate case IP_OPTIONS: 26677c478bd9Sstevel@tonic-gate case T_IP_OPTIONS: 266845916cd2Sjpk len = udp->udp_ip_rcv_options_len - udp->udp_label_len; 266945916cd2Sjpk if (len > 0) { 267045916cd2Sjpk bcopy(udp->udp_ip_rcv_options + 267145916cd2Sjpk udp->udp_label_len, ptr, len); 267245916cd2Sjpk } 267345916cd2Sjpk return (len); 26747c478bd9Sstevel@tonic-gate case IP_TOS: 26757c478bd9Sstevel@tonic-gate case T_IP_TOS: 26767c478bd9Sstevel@tonic-gate *i1 = (int)udp->udp_type_of_service; 26777c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 26787c478bd9Sstevel@tonic-gate case IP_TTL: 26797c478bd9Sstevel@tonic-gate *i1 = (int)udp->udp_ttl; 26807c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 2681e704a8f2Smeem case IP_DHCPINIT_IF: 2682e704a8f2Smeem return (-EINVAL); 268343d18f1cSpriyanka case IP_NEXTHOP: 268419a30e1aSrshoaib case IP_RECVPKTINFO: 268519a30e1aSrshoaib /* 268619a30e1aSrshoaib * This also handles IP_PKTINFO. 268719a30e1aSrshoaib * IP_PKTINFO and IP_RECVPKTINFO have the same value. 268819a30e1aSrshoaib * Differentiation is based on the size of the argument 268919a30e1aSrshoaib * passed in. 269019a30e1aSrshoaib * This option is handled in IP which will return an 269119a30e1aSrshoaib * error for IP_PKTINFO as it's not supported as a 269219a30e1aSrshoaib * sticky option. 269319a30e1aSrshoaib */ 269443d18f1cSpriyanka return (-EINVAL); 26957c478bd9Sstevel@tonic-gate case IP_MULTICAST_IF: 26967c478bd9Sstevel@tonic-gate /* 0 address if not set */ 26977c478bd9Sstevel@tonic-gate *(ipaddr_t *)ptr = udp->udp_multicast_if_addr; 26987c478bd9Sstevel@tonic-gate return (sizeof (ipaddr_t)); 26997c478bd9Sstevel@tonic-gate case IP_MULTICAST_TTL: 27007c478bd9Sstevel@tonic-gate *(uchar_t *)ptr = udp->udp_multicast_ttl; 27017c478bd9Sstevel@tonic-gate return (sizeof (uchar_t)); 27027c478bd9Sstevel@tonic-gate case IP_MULTICAST_LOOP: 2703ff550d0eSmasputra *ptr = connp->conn_multicast_loop; 27047c478bd9Sstevel@tonic-gate return (sizeof (uint8_t)); 27057c478bd9Sstevel@tonic-gate case IP_RECVOPTS: 27067c478bd9Sstevel@tonic-gate *i1 = udp->udp_recvopts; 27077c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27087c478bd9Sstevel@tonic-gate case IP_RECVDSTADDR: 27097c478bd9Sstevel@tonic-gate *i1 = udp->udp_recvdstaddr; 27107c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27117c478bd9Sstevel@tonic-gate case IP_RECVIF: 27127c478bd9Sstevel@tonic-gate *i1 = udp->udp_recvif; 27137c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27147c478bd9Sstevel@tonic-gate case IP_RECVSLLA: 27157c478bd9Sstevel@tonic-gate *i1 = udp->udp_recvslla; 27167c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27177c478bd9Sstevel@tonic-gate case IP_RECVTTL: 27187c478bd9Sstevel@tonic-gate *i1 = udp->udp_recvttl; 27197c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27207c478bd9Sstevel@tonic-gate case IP_ADD_MEMBERSHIP: 27217c478bd9Sstevel@tonic-gate case IP_DROP_MEMBERSHIP: 27227c478bd9Sstevel@tonic-gate case IP_BLOCK_SOURCE: 27237c478bd9Sstevel@tonic-gate case IP_UNBLOCK_SOURCE: 27247c478bd9Sstevel@tonic-gate case IP_ADD_SOURCE_MEMBERSHIP: 27257c478bd9Sstevel@tonic-gate case IP_DROP_SOURCE_MEMBERSHIP: 27267c478bd9Sstevel@tonic-gate case MCAST_JOIN_GROUP: 27277c478bd9Sstevel@tonic-gate case MCAST_LEAVE_GROUP: 27287c478bd9Sstevel@tonic-gate case MCAST_BLOCK_SOURCE: 27297c478bd9Sstevel@tonic-gate case MCAST_UNBLOCK_SOURCE: 27307c478bd9Sstevel@tonic-gate case MCAST_JOIN_SOURCE_GROUP: 27317c478bd9Sstevel@tonic-gate case MCAST_LEAVE_SOURCE_GROUP: 27327c478bd9Sstevel@tonic-gate case IP_DONTFAILOVER_IF: 27337c478bd9Sstevel@tonic-gate /* cannot "get" the value for these */ 27347c478bd9Sstevel@tonic-gate return (-1); 27357c478bd9Sstevel@tonic-gate case IP_BOUND_IF: 27367c478bd9Sstevel@tonic-gate /* Zero if not set */ 27377c478bd9Sstevel@tonic-gate *i1 = udp->udp_bound_if; 27387c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27397c478bd9Sstevel@tonic-gate case IP_UNSPEC_SRC: 27407c478bd9Sstevel@tonic-gate *i1 = udp->udp_unspec_source; 27417c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 2742a7107231Smeem case IP_BROADCAST_TTL: 2743a7107231Smeem *(uchar_t *)ptr = connp->conn_broadcast_ttl; 2744a7107231Smeem return (sizeof (uchar_t)); 27457c478bd9Sstevel@tonic-gate default: 27467c478bd9Sstevel@tonic-gate return (-1); 27477c478bd9Sstevel@tonic-gate } 27487c478bd9Sstevel@tonic-gate break; 27497c478bd9Sstevel@tonic-gate case IPPROTO_IPV6: 27507c478bd9Sstevel@tonic-gate if (udp->udp_family != AF_INET6) 27517c478bd9Sstevel@tonic-gate return (-1); 27527c478bd9Sstevel@tonic-gate switch (name) { 27537c478bd9Sstevel@tonic-gate case IPV6_UNICAST_HOPS: 27547c478bd9Sstevel@tonic-gate *i1 = (unsigned int)udp->udp_ttl; 27557c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27567c478bd9Sstevel@tonic-gate case IPV6_MULTICAST_IF: 27577c478bd9Sstevel@tonic-gate /* 0 index if not set */ 27587c478bd9Sstevel@tonic-gate *i1 = udp->udp_multicast_if_index; 27597c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27607c478bd9Sstevel@tonic-gate case IPV6_MULTICAST_HOPS: 27617c478bd9Sstevel@tonic-gate *i1 = udp->udp_multicast_ttl; 27627c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27637c478bd9Sstevel@tonic-gate case IPV6_MULTICAST_LOOP: 2764ff550d0eSmasputra *i1 = connp->conn_multicast_loop; 27657c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27667c478bd9Sstevel@tonic-gate case IPV6_JOIN_GROUP: 27677c478bd9Sstevel@tonic-gate case IPV6_LEAVE_GROUP: 27687c478bd9Sstevel@tonic-gate case MCAST_JOIN_GROUP: 27697c478bd9Sstevel@tonic-gate case MCAST_LEAVE_GROUP: 27707c478bd9Sstevel@tonic-gate case MCAST_BLOCK_SOURCE: 27717c478bd9Sstevel@tonic-gate case MCAST_UNBLOCK_SOURCE: 27727c478bd9Sstevel@tonic-gate case MCAST_JOIN_SOURCE_GROUP: 27737c478bd9Sstevel@tonic-gate case MCAST_LEAVE_SOURCE_GROUP: 27747c478bd9Sstevel@tonic-gate /* cannot "get" the value for these */ 27757c478bd9Sstevel@tonic-gate return (-1); 27767c478bd9Sstevel@tonic-gate case IPV6_BOUND_IF: 27777c478bd9Sstevel@tonic-gate /* Zero if not set */ 27787c478bd9Sstevel@tonic-gate *i1 = udp->udp_bound_if; 27797c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27807c478bd9Sstevel@tonic-gate case IPV6_UNSPEC_SRC: 27817c478bd9Sstevel@tonic-gate *i1 = udp->udp_unspec_source; 27827c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27837c478bd9Sstevel@tonic-gate case IPV6_RECVPKTINFO: 278419a30e1aSrshoaib *i1 = udp->udp_ip_recvpktinfo; 27857c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27867c478bd9Sstevel@tonic-gate case IPV6_RECVTCLASS: 27877c478bd9Sstevel@tonic-gate *i1 = udp->udp_ipv6_recvtclass; 27887c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27897c478bd9Sstevel@tonic-gate case IPV6_RECVPATHMTU: 27907c478bd9Sstevel@tonic-gate *i1 = udp->udp_ipv6_recvpathmtu; 27917c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27927c478bd9Sstevel@tonic-gate case IPV6_RECVHOPLIMIT: 27937c478bd9Sstevel@tonic-gate *i1 = udp->udp_ipv6_recvhoplimit; 27947c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27957c478bd9Sstevel@tonic-gate case IPV6_RECVHOPOPTS: 27967c478bd9Sstevel@tonic-gate *i1 = udp->udp_ipv6_recvhopopts; 27977c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 27987c478bd9Sstevel@tonic-gate case IPV6_RECVDSTOPTS: 27997c478bd9Sstevel@tonic-gate *i1 = udp->udp_ipv6_recvdstopts; 28007c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 28017c478bd9Sstevel@tonic-gate case _OLD_IPV6_RECVDSTOPTS: 28027c478bd9Sstevel@tonic-gate *i1 = udp->udp_old_ipv6_recvdstopts; 28037c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 28047c478bd9Sstevel@tonic-gate case IPV6_RECVRTHDRDSTOPTS: 28057c478bd9Sstevel@tonic-gate *i1 = udp->udp_ipv6_recvrthdrdstopts; 28067c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 28077c478bd9Sstevel@tonic-gate case IPV6_RECVRTHDR: 28087c478bd9Sstevel@tonic-gate *i1 = udp->udp_ipv6_recvrthdr; 28097c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 28107c478bd9Sstevel@tonic-gate case IPV6_PKTINFO: { 28117c478bd9Sstevel@tonic-gate /* XXX assumes that caller has room for max size! */ 28127c478bd9Sstevel@tonic-gate struct in6_pktinfo *pkti; 28137c478bd9Sstevel@tonic-gate 28147c478bd9Sstevel@tonic-gate pkti = (struct in6_pktinfo *)ptr; 28157c478bd9Sstevel@tonic-gate if (ipp->ipp_fields & IPPF_IFINDEX) 28167c478bd9Sstevel@tonic-gate pkti->ipi6_ifindex = ipp->ipp_ifindex; 28177c478bd9Sstevel@tonic-gate else 28187c478bd9Sstevel@tonic-gate pkti->ipi6_ifindex = 0; 28197c478bd9Sstevel@tonic-gate if (ipp->ipp_fields & IPPF_ADDR) 28207c478bd9Sstevel@tonic-gate pkti->ipi6_addr = ipp->ipp_addr; 28217c478bd9Sstevel@tonic-gate else 28227c478bd9Sstevel@tonic-gate pkti->ipi6_addr = ipv6_all_zeros; 28237c478bd9Sstevel@tonic-gate return (sizeof (struct in6_pktinfo)); 28247c478bd9Sstevel@tonic-gate } 28257c478bd9Sstevel@tonic-gate case IPV6_TCLASS: 28267c478bd9Sstevel@tonic-gate if (ipp->ipp_fields & IPPF_TCLASS) 28277c478bd9Sstevel@tonic-gate *i1 = ipp->ipp_tclass; 28287c478bd9Sstevel@tonic-gate else 28297c478bd9Sstevel@tonic-gate *i1 = IPV6_FLOW_TCLASS( 28307c478bd9Sstevel@tonic-gate IPV6_DEFAULT_VERS_AND_FLOW); 28317c478bd9Sstevel@tonic-gate break; /* goto sizeof (int) option return */ 28327c478bd9Sstevel@tonic-gate case IPV6_NEXTHOP: { 28337c478bd9Sstevel@tonic-gate sin6_t *sin6 = (sin6_t *)ptr; 28347c478bd9Sstevel@tonic-gate 28357c478bd9Sstevel@tonic-gate if (!(ipp->ipp_fields & IPPF_NEXTHOP)) 28367c478bd9Sstevel@tonic-gate return (0); 28377c478bd9Sstevel@tonic-gate *sin6 = sin6_null; 28387c478bd9Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 28397c478bd9Sstevel@tonic-gate sin6->sin6_addr = ipp->ipp_nexthop; 28407c478bd9Sstevel@tonic-gate return (sizeof (sin6_t)); 28417c478bd9Sstevel@tonic-gate } 28427c478bd9Sstevel@tonic-gate case IPV6_HOPOPTS: 28437c478bd9Sstevel@tonic-gate if (!(ipp->ipp_fields & IPPF_HOPOPTS)) 28447c478bd9Sstevel@tonic-gate return (0); 284545916cd2Sjpk if (ipp->ipp_hopoptslen <= udp->udp_label_len_v6) 284645916cd2Sjpk return (0); 284745916cd2Sjpk /* 284845916cd2Sjpk * The cipso/label option is added by kernel. 284945916cd2Sjpk * User is not usually aware of this option. 285045916cd2Sjpk * We copy out the hbh opt after the label option. 285145916cd2Sjpk */ 285245916cd2Sjpk bcopy((char *)ipp->ipp_hopopts + udp->udp_label_len_v6, 285345916cd2Sjpk ptr, ipp->ipp_hopoptslen - udp->udp_label_len_v6); 285445916cd2Sjpk if (udp->udp_label_len_v6 > 0) { 285545916cd2Sjpk ptr[0] = ((char *)ipp->ipp_hopopts)[0]; 285645916cd2Sjpk ptr[1] = (ipp->ipp_hopoptslen - 285745916cd2Sjpk udp->udp_label_len_v6 + 7) / 8 - 1; 285845916cd2Sjpk } 285945916cd2Sjpk return (ipp->ipp_hopoptslen - udp->udp_label_len_v6); 28607c478bd9Sstevel@tonic-gate case IPV6_RTHDRDSTOPTS: 28617c478bd9Sstevel@tonic-gate if (!(ipp->ipp_fields & IPPF_RTDSTOPTS)) 28627c478bd9Sstevel@tonic-gate return (0); 28637c478bd9Sstevel@tonic-gate bcopy(ipp->ipp_rtdstopts, ptr, ipp->ipp_rtdstoptslen); 28647c478bd9Sstevel@tonic-gate return (ipp->ipp_rtdstoptslen); 28657c478bd9Sstevel@tonic-gate case IPV6_RTHDR: 28667c478bd9Sstevel@tonic-gate if (!(ipp->ipp_fields & IPPF_RTHDR)) 28677c478bd9Sstevel@tonic-gate return (0); 28687c478bd9Sstevel@tonic-gate bcopy(ipp->ipp_rthdr, ptr, ipp->ipp_rthdrlen); 28697c478bd9Sstevel@tonic-gate return (ipp->ipp_rthdrlen); 28707c478bd9Sstevel@tonic-gate case IPV6_DSTOPTS: 28717c478bd9Sstevel@tonic-gate if (!(ipp->ipp_fields & IPPF_DSTOPTS)) 28727c478bd9Sstevel@tonic-gate return (0); 28737c478bd9Sstevel@tonic-gate bcopy(ipp->ipp_dstopts, ptr, ipp->ipp_dstoptslen); 28747c478bd9Sstevel@tonic-gate return (ipp->ipp_dstoptslen); 28757c478bd9Sstevel@tonic-gate case IPV6_PATHMTU: 28767c478bd9Sstevel@tonic-gate return (ip_fill_mtuinfo(&udp->udp_v6dst, 2877437220cdSdanmcd udp->udp_dstport, (struct ip6_mtuinfo *)ptr, 2878437220cdSdanmcd us->us_netstack)); 28797c478bd9Sstevel@tonic-gate default: 28807c478bd9Sstevel@tonic-gate return (-1); 28817c478bd9Sstevel@tonic-gate } 28827c478bd9Sstevel@tonic-gate break; 28837c478bd9Sstevel@tonic-gate case IPPROTO_UDP: 28847c478bd9Sstevel@tonic-gate switch (name) { 28857c478bd9Sstevel@tonic-gate case UDP_ANONPRIVBIND: 28867c478bd9Sstevel@tonic-gate *i1 = udp->udp_anon_priv_bind; 28877c478bd9Sstevel@tonic-gate break; 28887c478bd9Sstevel@tonic-gate case UDP_EXCLBIND: 28897c478bd9Sstevel@tonic-gate *i1 = udp->udp_exclbind ? UDP_EXCLBIND : 0; 28907c478bd9Sstevel@tonic-gate break; 28917c478bd9Sstevel@tonic-gate case UDP_RCVHDR: 28927c478bd9Sstevel@tonic-gate *i1 = udp->udp_rcvhdr ? 1 : 0; 28937c478bd9Sstevel@tonic-gate break; 2894437220cdSdanmcd case UDP_NAT_T_ENDPOINT: 2895437220cdSdanmcd *i1 = udp->udp_nat_t_endpoint; 2896437220cdSdanmcd break; 28977c478bd9Sstevel@tonic-gate default: 28987c478bd9Sstevel@tonic-gate return (-1); 28997c478bd9Sstevel@tonic-gate } 29007c478bd9Sstevel@tonic-gate break; 29017c478bd9Sstevel@tonic-gate default: 29027c478bd9Sstevel@tonic-gate return (-1); 29037c478bd9Sstevel@tonic-gate } 29047c478bd9Sstevel@tonic-gate return (sizeof (int)); 29057c478bd9Sstevel@tonic-gate } 29067c478bd9Sstevel@tonic-gate 2907fc80c0dfSnordmark int 2908fc80c0dfSnordmark udp_opt_get(queue_t *q, t_scalar_t level, t_scalar_t name, uchar_t *ptr) 2909fc80c0dfSnordmark { 2910fc80c0dfSnordmark udp_t *udp; 2911fc80c0dfSnordmark int err; 2912fc80c0dfSnordmark 2913fc80c0dfSnordmark udp = Q_TO_UDP(q); 2914fc80c0dfSnordmark 2915fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_READER); 2916fc80c0dfSnordmark err = udp_opt_get_locked(q, level, name, ptr); 2917fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 2918fc80c0dfSnordmark return (err); 2919fc80c0dfSnordmark } 2920fc80c0dfSnordmark 2921ff550d0eSmasputra /* 2922fc80c0dfSnordmark * This routine sets socket options. 2923ff550d0eSmasputra */ 29247c478bd9Sstevel@tonic-gate /* ARGSUSED */ 29257c478bd9Sstevel@tonic-gate int 2926fc80c0dfSnordmark udp_opt_set_locked(queue_t *q, uint_t optset_context, int level, 29277c478bd9Sstevel@tonic-gate int name, uint_t inlen, uchar_t *invalp, uint_t *outlenp, 29287c478bd9Sstevel@tonic-gate uchar_t *outvalp, void *thisdg_attrs, cred_t *cr, mblk_t *mblk) 29297c478bd9Sstevel@tonic-gate { 293045916cd2Sjpk udpattrs_t *attrs = thisdg_attrs; 29317c478bd9Sstevel@tonic-gate int *i1 = (int *)invalp; 29327c478bd9Sstevel@tonic-gate boolean_t onoff = (*i1 == 0) ? 0 : 1; 29337c478bd9Sstevel@tonic-gate boolean_t checkonly; 29347c478bd9Sstevel@tonic-gate int error; 2935ff550d0eSmasputra conn_t *connp; 2936ff550d0eSmasputra udp_t *udp; 293745916cd2Sjpk uint_t newlen; 2938f4b3ec61Sdh udp_stack_t *us; 2939fc80c0dfSnordmark size_t sth_wroff; 2940ff550d0eSmasputra 2941ff550d0eSmasputra connp = Q_TO_CONN(q); 2942ff550d0eSmasputra udp = connp->conn_udp; 2943f4b3ec61Sdh us = udp->udp_us; 29447c478bd9Sstevel@tonic-gate 29457c478bd9Sstevel@tonic-gate switch (optset_context) { 29467c478bd9Sstevel@tonic-gate case SETFN_OPTCOM_CHECKONLY: 29477c478bd9Sstevel@tonic-gate checkonly = B_TRUE; 29487c478bd9Sstevel@tonic-gate /* 29497c478bd9Sstevel@tonic-gate * Note: Implies T_CHECK semantics for T_OPTCOM_REQ 29507c478bd9Sstevel@tonic-gate * inlen != 0 implies value supplied and 29517c478bd9Sstevel@tonic-gate * we have to "pretend" to set it. 29527c478bd9Sstevel@tonic-gate * inlen == 0 implies that there is no 29537c478bd9Sstevel@tonic-gate * value part in T_CHECK request and just validation 29547c478bd9Sstevel@tonic-gate * done elsewhere should be enough, we just return here. 29557c478bd9Sstevel@tonic-gate */ 29567c478bd9Sstevel@tonic-gate if (inlen == 0) { 29577c478bd9Sstevel@tonic-gate *outlenp = 0; 29587c478bd9Sstevel@tonic-gate return (0); 29597c478bd9Sstevel@tonic-gate } 29607c478bd9Sstevel@tonic-gate break; 29617c478bd9Sstevel@tonic-gate case SETFN_OPTCOM_NEGOTIATE: 29627c478bd9Sstevel@tonic-gate checkonly = B_FALSE; 29637c478bd9Sstevel@tonic-gate break; 29647c478bd9Sstevel@tonic-gate case SETFN_UD_NEGOTIATE: 29657c478bd9Sstevel@tonic-gate case SETFN_CONN_NEGOTIATE: 29667c478bd9Sstevel@tonic-gate checkonly = B_FALSE; 29677c478bd9Sstevel@tonic-gate /* 29687c478bd9Sstevel@tonic-gate * Negotiating local and "association-related" options 29697c478bd9Sstevel@tonic-gate * through T_UNITDATA_REQ. 29707c478bd9Sstevel@tonic-gate * 29717c478bd9Sstevel@tonic-gate * Following routine can filter out ones we do not 29727c478bd9Sstevel@tonic-gate * want to be "set" this way. 29737c478bd9Sstevel@tonic-gate */ 29747c478bd9Sstevel@tonic-gate if (!udp_opt_allow_udr_set(level, name)) { 29757c478bd9Sstevel@tonic-gate *outlenp = 0; 29767c478bd9Sstevel@tonic-gate return (EINVAL); 29777c478bd9Sstevel@tonic-gate } 29787c478bd9Sstevel@tonic-gate break; 29797c478bd9Sstevel@tonic-gate default: 29807c478bd9Sstevel@tonic-gate /* 29817c478bd9Sstevel@tonic-gate * We should never get here 29827c478bd9Sstevel@tonic-gate */ 29837c478bd9Sstevel@tonic-gate *outlenp = 0; 29847c478bd9Sstevel@tonic-gate return (EINVAL); 29857c478bd9Sstevel@tonic-gate } 29867c478bd9Sstevel@tonic-gate 29877c478bd9Sstevel@tonic-gate ASSERT((optset_context != SETFN_OPTCOM_CHECKONLY) || 29887c478bd9Sstevel@tonic-gate (optset_context == SETFN_OPTCOM_CHECKONLY && inlen != 0)); 29897c478bd9Sstevel@tonic-gate 29907c478bd9Sstevel@tonic-gate /* 29917c478bd9Sstevel@tonic-gate * For fixed length options, no sanity check 29927c478bd9Sstevel@tonic-gate * of passed in length is done. It is assumed *_optcom_req() 29937c478bd9Sstevel@tonic-gate * routines do the right thing. 29947c478bd9Sstevel@tonic-gate */ 29957c478bd9Sstevel@tonic-gate 29967c478bd9Sstevel@tonic-gate switch (level) { 29977c478bd9Sstevel@tonic-gate case SOL_SOCKET: 29987c478bd9Sstevel@tonic-gate switch (name) { 29997c478bd9Sstevel@tonic-gate case SO_REUSEADDR: 30007c478bd9Sstevel@tonic-gate if (!checkonly) 30017c478bd9Sstevel@tonic-gate udp->udp_reuseaddr = onoff; 30027c478bd9Sstevel@tonic-gate break; 30037c478bd9Sstevel@tonic-gate case SO_DEBUG: 30047c478bd9Sstevel@tonic-gate if (!checkonly) 30057c478bd9Sstevel@tonic-gate udp->udp_debug = onoff; 30067c478bd9Sstevel@tonic-gate break; 30077c478bd9Sstevel@tonic-gate /* 30087c478bd9Sstevel@tonic-gate * The following three items are available here, 30097c478bd9Sstevel@tonic-gate * but are only meaningful to IP. 30107c478bd9Sstevel@tonic-gate */ 30117c478bd9Sstevel@tonic-gate case SO_DONTROUTE: 30127c478bd9Sstevel@tonic-gate if (!checkonly) 30137c478bd9Sstevel@tonic-gate udp->udp_dontroute = onoff; 30147c478bd9Sstevel@tonic-gate break; 30157c478bd9Sstevel@tonic-gate case SO_USELOOPBACK: 30167c478bd9Sstevel@tonic-gate if (!checkonly) 30177c478bd9Sstevel@tonic-gate udp->udp_useloopback = onoff; 30187c478bd9Sstevel@tonic-gate break; 30197c478bd9Sstevel@tonic-gate case SO_BROADCAST: 30207c478bd9Sstevel@tonic-gate if (!checkonly) 30217c478bd9Sstevel@tonic-gate udp->udp_broadcast = onoff; 30227c478bd9Sstevel@tonic-gate break; 30237c478bd9Sstevel@tonic-gate 30247c478bd9Sstevel@tonic-gate case SO_SNDBUF: 3025f4b3ec61Sdh if (*i1 > us->us_max_buf) { 30267c478bd9Sstevel@tonic-gate *outlenp = 0; 30277c478bd9Sstevel@tonic-gate return (ENOBUFS); 30287c478bd9Sstevel@tonic-gate } 30297c478bd9Sstevel@tonic-gate if (!checkonly) { 30307c478bd9Sstevel@tonic-gate q->q_hiwat = *i1; 30317c478bd9Sstevel@tonic-gate } 30327c478bd9Sstevel@tonic-gate break; 30337c478bd9Sstevel@tonic-gate case SO_RCVBUF: 3034f4b3ec61Sdh if (*i1 > us->us_max_buf) { 30357c478bd9Sstevel@tonic-gate *outlenp = 0; 30367c478bd9Sstevel@tonic-gate return (ENOBUFS); 30377c478bd9Sstevel@tonic-gate } 30387c478bd9Sstevel@tonic-gate if (!checkonly) { 30397c478bd9Sstevel@tonic-gate RD(q)->q_hiwat = *i1; 3040fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 3041fc80c0dfSnordmark (void) mi_set_sth_hiwat(RD(q), 3042ff550d0eSmasputra udp_set_rcv_hiwat(udp, *i1)); 3043fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 30447c478bd9Sstevel@tonic-gate } 30457c478bd9Sstevel@tonic-gate break; 30467c478bd9Sstevel@tonic-gate case SO_DGRAM_ERRIND: 30477c478bd9Sstevel@tonic-gate if (!checkonly) 30487c478bd9Sstevel@tonic-gate udp->udp_dgram_errind = onoff; 30497c478bd9Sstevel@tonic-gate break; 30507c478bd9Sstevel@tonic-gate case SO_RECVUCRED: 30517c478bd9Sstevel@tonic-gate if (!checkonly) 30527c478bd9Sstevel@tonic-gate udp->udp_recvucred = onoff; 30537c478bd9Sstevel@tonic-gate break; 30545d0bc3edSsommerfe case SO_ALLZONES: 30555d0bc3edSsommerfe /* 30565d0bc3edSsommerfe * "soft" error (negative) 30575d0bc3edSsommerfe * option not handled at this level 30585d0bc3edSsommerfe * Do not modify *outlenp. 30595d0bc3edSsommerfe */ 30605d0bc3edSsommerfe return (-EINVAL); 3061e4f35dbaSgt case SO_TIMESTAMP: 3062e4f35dbaSgt if (!checkonly) 3063e4f35dbaSgt udp->udp_timestamp = onoff; 3064e4f35dbaSgt break; 306545916cd2Sjpk case SO_ANON_MLP: 306645916cd2Sjpk if (!checkonly) 306745916cd2Sjpk udp->udp_anon_mlp = onoff; 306845916cd2Sjpk break; 306945916cd2Sjpk case SO_MAC_EXEMPT: 307045916cd2Sjpk if (secpolicy_net_mac_aware(cr) != 0 || 307145916cd2Sjpk udp->udp_state != TS_UNBND) 307245916cd2Sjpk return (EACCES); 307345916cd2Sjpk if (!checkonly) 307445916cd2Sjpk udp->udp_mac_exempt = onoff; 307545916cd2Sjpk break; 307645916cd2Sjpk case SCM_UCRED: { 307745916cd2Sjpk struct ucred_s *ucr; 307845916cd2Sjpk cred_t *cr, *newcr; 307945916cd2Sjpk ts_label_t *tsl; 308045916cd2Sjpk 308145916cd2Sjpk /* 308245916cd2Sjpk * Only sockets that have proper privileges and are 308345916cd2Sjpk * bound to MLPs will have any other value here, so 308445916cd2Sjpk * this implicitly tests for privilege to set label. 308545916cd2Sjpk */ 308645916cd2Sjpk if (connp->conn_mlp_type == mlptSingle) 308745916cd2Sjpk break; 308845916cd2Sjpk ucr = (struct ucred_s *)invalp; 308945916cd2Sjpk if (inlen != ucredsize || 309045916cd2Sjpk ucr->uc_labeloff < sizeof (*ucr) || 309145916cd2Sjpk ucr->uc_labeloff + sizeof (bslabel_t) > inlen) 309245916cd2Sjpk return (EINVAL); 309345916cd2Sjpk if (!checkonly) { 309445916cd2Sjpk mblk_t *mb; 309545916cd2Sjpk 309645916cd2Sjpk if (attrs == NULL || 309745916cd2Sjpk (mb = attrs->udpattr_mb) == NULL) 309845916cd2Sjpk return (EINVAL); 309945916cd2Sjpk if ((cr = DB_CRED(mb)) == NULL) 310045916cd2Sjpk cr = udp->udp_connp->conn_cred; 310145916cd2Sjpk ASSERT(cr != NULL); 310245916cd2Sjpk if ((tsl = crgetlabel(cr)) == NULL) 310345916cd2Sjpk return (EINVAL); 310445916cd2Sjpk newcr = copycred_from_bslabel(cr, UCLABEL(ucr), 310545916cd2Sjpk tsl->tsl_doi, KM_NOSLEEP); 310645916cd2Sjpk if (newcr == NULL) 310745916cd2Sjpk return (ENOSR); 310845916cd2Sjpk mblk_setcred(mb, newcr); 310945916cd2Sjpk attrs->udpattr_credset = B_TRUE; 311045916cd2Sjpk crfree(newcr); 311145916cd2Sjpk } 311245916cd2Sjpk break; 311345916cd2Sjpk } 3114ae347574Skcpoon case SO_EXCLBIND: 3115ae347574Skcpoon if (!checkonly) 3116ae347574Skcpoon udp->udp_exclbind = onoff; 3117ae347574Skcpoon break; 31187c478bd9Sstevel@tonic-gate default: 31197c478bd9Sstevel@tonic-gate *outlenp = 0; 31207c478bd9Sstevel@tonic-gate return (EINVAL); 31217c478bd9Sstevel@tonic-gate } 31227c478bd9Sstevel@tonic-gate break; 31237c478bd9Sstevel@tonic-gate case IPPROTO_IP: 31247c478bd9Sstevel@tonic-gate if (udp->udp_family != AF_INET) { 31257c478bd9Sstevel@tonic-gate *outlenp = 0; 31267c478bd9Sstevel@tonic-gate return (ENOPROTOOPT); 31277c478bd9Sstevel@tonic-gate } 31287c478bd9Sstevel@tonic-gate switch (name) { 31297c478bd9Sstevel@tonic-gate case IP_OPTIONS: 31307c478bd9Sstevel@tonic-gate case T_IP_OPTIONS: 31317c478bd9Sstevel@tonic-gate /* Save options for use by IP. */ 313245916cd2Sjpk newlen = inlen + udp->udp_label_len; 313345916cd2Sjpk if ((inlen & 0x3) || newlen > IP_MAX_OPT_LENGTH) { 31347c478bd9Sstevel@tonic-gate *outlenp = 0; 31357c478bd9Sstevel@tonic-gate return (EINVAL); 31367c478bd9Sstevel@tonic-gate } 31377c478bd9Sstevel@tonic-gate if (checkonly) 31387c478bd9Sstevel@tonic-gate break; 31397c478bd9Sstevel@tonic-gate 3140fc80c0dfSnordmark /* 3141fc80c0dfSnordmark * Update the stored options taking into account 3142fc80c0dfSnordmark * any CIPSO option which we should not overwrite. 3143fc80c0dfSnordmark */ 314445916cd2Sjpk if (!tsol_option_set(&udp->udp_ip_snd_options, 314545916cd2Sjpk &udp->udp_ip_snd_options_len, 314645916cd2Sjpk udp->udp_label_len, invalp, inlen)) { 314745916cd2Sjpk *outlenp = 0; 314845916cd2Sjpk return (ENOMEM); 31497c478bd9Sstevel@tonic-gate } 315045916cd2Sjpk 31517c478bd9Sstevel@tonic-gate udp->udp_max_hdr_len = IP_SIMPLE_HDR_LENGTH + 31527c478bd9Sstevel@tonic-gate UDPH_SIZE + udp->udp_ip_snd_options_len; 3153fc80c0dfSnordmark sth_wroff = udp->udp_max_hdr_len + us->us_wroff_extra; 3154fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 3155fc80c0dfSnordmark (void) mi_set_sth_wroff(RD(q), sth_wroff); 3156fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 31577c478bd9Sstevel@tonic-gate break; 315845916cd2Sjpk 31597c478bd9Sstevel@tonic-gate case IP_TTL: 31607c478bd9Sstevel@tonic-gate if (!checkonly) { 31617c478bd9Sstevel@tonic-gate udp->udp_ttl = (uchar_t)*i1; 31627c478bd9Sstevel@tonic-gate } 31637c478bd9Sstevel@tonic-gate break; 31647c478bd9Sstevel@tonic-gate case IP_TOS: 31657c478bd9Sstevel@tonic-gate case T_IP_TOS: 31667c478bd9Sstevel@tonic-gate if (!checkonly) { 31677c478bd9Sstevel@tonic-gate udp->udp_type_of_service = (uchar_t)*i1; 31687c478bd9Sstevel@tonic-gate } 31697c478bd9Sstevel@tonic-gate break; 31707c478bd9Sstevel@tonic-gate case IP_MULTICAST_IF: { 31717c478bd9Sstevel@tonic-gate /* 31727c478bd9Sstevel@tonic-gate * TODO should check OPTMGMT reply and undo this if 31737c478bd9Sstevel@tonic-gate * there is an error. 31747c478bd9Sstevel@tonic-gate */ 31757c478bd9Sstevel@tonic-gate struct in_addr *inap = (struct in_addr *)invalp; 31767c478bd9Sstevel@tonic-gate if (!checkonly) { 31777c478bd9Sstevel@tonic-gate udp->udp_multicast_if_addr = 31787c478bd9Sstevel@tonic-gate inap->s_addr; 31797c478bd9Sstevel@tonic-gate } 31807c478bd9Sstevel@tonic-gate break; 31817c478bd9Sstevel@tonic-gate } 31827c478bd9Sstevel@tonic-gate case IP_MULTICAST_TTL: 31837c478bd9Sstevel@tonic-gate if (!checkonly) 31847c478bd9Sstevel@tonic-gate udp->udp_multicast_ttl = *invalp; 31857c478bd9Sstevel@tonic-gate break; 31867c478bd9Sstevel@tonic-gate case IP_MULTICAST_LOOP: 31877c478bd9Sstevel@tonic-gate if (!checkonly) 3188ff550d0eSmasputra connp->conn_multicast_loop = *invalp; 31897c478bd9Sstevel@tonic-gate break; 31907c478bd9Sstevel@tonic-gate case IP_RECVOPTS: 31917c478bd9Sstevel@tonic-gate if (!checkonly) 31927c478bd9Sstevel@tonic-gate udp->udp_recvopts = onoff; 31937c478bd9Sstevel@tonic-gate break; 31947c478bd9Sstevel@tonic-gate case IP_RECVDSTADDR: 31957c478bd9Sstevel@tonic-gate if (!checkonly) 31967c478bd9Sstevel@tonic-gate udp->udp_recvdstaddr = onoff; 31977c478bd9Sstevel@tonic-gate break; 31987c478bd9Sstevel@tonic-gate case IP_RECVIF: 31997c478bd9Sstevel@tonic-gate if (!checkonly) 32007c478bd9Sstevel@tonic-gate udp->udp_recvif = onoff; 32017c478bd9Sstevel@tonic-gate break; 32027c478bd9Sstevel@tonic-gate case IP_RECVSLLA: 32037c478bd9Sstevel@tonic-gate if (!checkonly) 32047c478bd9Sstevel@tonic-gate udp->udp_recvslla = onoff; 32057c478bd9Sstevel@tonic-gate break; 32067c478bd9Sstevel@tonic-gate case IP_RECVTTL: 32077c478bd9Sstevel@tonic-gate if (!checkonly) 32087c478bd9Sstevel@tonic-gate udp->udp_recvttl = onoff; 32097c478bd9Sstevel@tonic-gate break; 321019a30e1aSrshoaib case IP_PKTINFO: { 321119a30e1aSrshoaib /* 321219a30e1aSrshoaib * This also handles IP_RECVPKTINFO. 321319a30e1aSrshoaib * IP_PKTINFO and IP_RECVPKTINFO have same value. 321419a30e1aSrshoaib * Differentiation is based on the size of the 321519a30e1aSrshoaib * argument passed in. 321619a30e1aSrshoaib */ 321719a30e1aSrshoaib struct in_pktinfo *pktinfop; 321819a30e1aSrshoaib ip4_pkt_t *attr_pktinfop; 321919a30e1aSrshoaib 322019a30e1aSrshoaib if (checkonly) 322119a30e1aSrshoaib break; 322219a30e1aSrshoaib 322319a30e1aSrshoaib if (inlen == sizeof (int)) { 322419a30e1aSrshoaib /* 322519a30e1aSrshoaib * This is IP_RECVPKTINFO option. 322619a30e1aSrshoaib * Keep a local copy of whether this option is 322719a30e1aSrshoaib * set or not and pass it down to IP for 322819a30e1aSrshoaib * processing. 322919a30e1aSrshoaib */ 323019a30e1aSrshoaib 323119a30e1aSrshoaib udp->udp_ip_recvpktinfo = onoff; 323219a30e1aSrshoaib return (-EINVAL); 323319a30e1aSrshoaib } 323419a30e1aSrshoaib 323519a30e1aSrshoaib if (attrs == NULL || 323619a30e1aSrshoaib (attr_pktinfop = attrs->udpattr_ipp4) == NULL) { 323719a30e1aSrshoaib /* 323819a30e1aSrshoaib * sticky option or no buffer to return 323919a30e1aSrshoaib * the results. 324019a30e1aSrshoaib */ 324119a30e1aSrshoaib return (EINVAL); 324219a30e1aSrshoaib } 324319a30e1aSrshoaib 324419a30e1aSrshoaib if (inlen != sizeof (struct in_pktinfo)) 324519a30e1aSrshoaib return (EINVAL); 324619a30e1aSrshoaib 324719a30e1aSrshoaib pktinfop = (struct in_pktinfo *)invalp; 324819a30e1aSrshoaib 324919a30e1aSrshoaib /* 325019a30e1aSrshoaib * At least one of the values should be specified 325119a30e1aSrshoaib */ 325219a30e1aSrshoaib if (pktinfop->ipi_ifindex == 0 && 325319a30e1aSrshoaib pktinfop->ipi_spec_dst.s_addr == INADDR_ANY) { 325419a30e1aSrshoaib return (EINVAL); 325519a30e1aSrshoaib } 325619a30e1aSrshoaib 325719a30e1aSrshoaib attr_pktinfop->ip4_addr = pktinfop->ipi_spec_dst.s_addr; 325819a30e1aSrshoaib attr_pktinfop->ip4_ill_index = pktinfop->ipi_ifindex; 325919a30e1aSrshoaib 326019a30e1aSrshoaib break; 326119a30e1aSrshoaib } 32627c478bd9Sstevel@tonic-gate case IP_ADD_MEMBERSHIP: 32637c478bd9Sstevel@tonic-gate case IP_DROP_MEMBERSHIP: 32647c478bd9Sstevel@tonic-gate case IP_BLOCK_SOURCE: 32657c478bd9Sstevel@tonic-gate case IP_UNBLOCK_SOURCE: 32667c478bd9Sstevel@tonic-gate case IP_ADD_SOURCE_MEMBERSHIP: 32677c478bd9Sstevel@tonic-gate case IP_DROP_SOURCE_MEMBERSHIP: 32687c478bd9Sstevel@tonic-gate case MCAST_JOIN_GROUP: 32697c478bd9Sstevel@tonic-gate case MCAST_LEAVE_GROUP: 32707c478bd9Sstevel@tonic-gate case MCAST_BLOCK_SOURCE: 32717c478bd9Sstevel@tonic-gate case MCAST_UNBLOCK_SOURCE: 32727c478bd9Sstevel@tonic-gate case MCAST_JOIN_SOURCE_GROUP: 32737c478bd9Sstevel@tonic-gate case MCAST_LEAVE_SOURCE_GROUP: 32747c478bd9Sstevel@tonic-gate case IP_SEC_OPT: 327543d18f1cSpriyanka case IP_NEXTHOP: 3276e704a8f2Smeem case IP_DHCPINIT_IF: 32777c478bd9Sstevel@tonic-gate /* 32787c478bd9Sstevel@tonic-gate * "soft" error (negative) 32797c478bd9Sstevel@tonic-gate * option not handled at this level 32807c478bd9Sstevel@tonic-gate * Do not modify *outlenp. 32817c478bd9Sstevel@tonic-gate */ 32827c478bd9Sstevel@tonic-gate return (-EINVAL); 32837c478bd9Sstevel@tonic-gate case IP_BOUND_IF: 32847c478bd9Sstevel@tonic-gate if (!checkonly) 32857c478bd9Sstevel@tonic-gate udp->udp_bound_if = *i1; 32867c478bd9Sstevel@tonic-gate break; 32877c478bd9Sstevel@tonic-gate case IP_UNSPEC_SRC: 32887c478bd9Sstevel@tonic-gate if (!checkonly) 32897c478bd9Sstevel@tonic-gate udp->udp_unspec_source = onoff; 32907c478bd9Sstevel@tonic-gate break; 3291a7107231Smeem case IP_BROADCAST_TTL: 3292a7107231Smeem if (!checkonly) 3293a7107231Smeem connp->conn_broadcast_ttl = *invalp; 3294a7107231Smeem break; 32957c478bd9Sstevel@tonic-gate default: 32967c478bd9Sstevel@tonic-gate *outlenp = 0; 32977c478bd9Sstevel@tonic-gate return (EINVAL); 32987c478bd9Sstevel@tonic-gate } 32997c478bd9Sstevel@tonic-gate break; 33007c478bd9Sstevel@tonic-gate case IPPROTO_IPV6: { 33017c478bd9Sstevel@tonic-gate ip6_pkt_t *ipp; 33027c478bd9Sstevel@tonic-gate boolean_t sticky; 33037c478bd9Sstevel@tonic-gate 33047c478bd9Sstevel@tonic-gate if (udp->udp_family != AF_INET6) { 33057c478bd9Sstevel@tonic-gate *outlenp = 0; 33067c478bd9Sstevel@tonic-gate return (ENOPROTOOPT); 33077c478bd9Sstevel@tonic-gate } 33087c478bd9Sstevel@tonic-gate /* 33097c478bd9Sstevel@tonic-gate * Deal with both sticky options and ancillary data 33107c478bd9Sstevel@tonic-gate */ 331145916cd2Sjpk sticky = B_FALSE; 331219a30e1aSrshoaib if (attrs == NULL || (ipp = attrs->udpattr_ipp6) == 331319a30e1aSrshoaib NULL) { 33147c478bd9Sstevel@tonic-gate /* sticky options, or none */ 33157c478bd9Sstevel@tonic-gate ipp = &udp->udp_sticky_ipp; 33167c478bd9Sstevel@tonic-gate sticky = B_TRUE; 33177c478bd9Sstevel@tonic-gate } 33187c478bd9Sstevel@tonic-gate 33197c478bd9Sstevel@tonic-gate switch (name) { 33207c478bd9Sstevel@tonic-gate case IPV6_MULTICAST_IF: 33217c478bd9Sstevel@tonic-gate if (!checkonly) 33227c478bd9Sstevel@tonic-gate udp->udp_multicast_if_index = *i1; 33237c478bd9Sstevel@tonic-gate break; 33247c478bd9Sstevel@tonic-gate case IPV6_UNICAST_HOPS: 33257c478bd9Sstevel@tonic-gate /* -1 means use default */ 33267c478bd9Sstevel@tonic-gate if (*i1 < -1 || *i1 > IPV6_MAX_HOPS) { 33277c478bd9Sstevel@tonic-gate *outlenp = 0; 33287c478bd9Sstevel@tonic-gate return (EINVAL); 33297c478bd9Sstevel@tonic-gate } 33307c478bd9Sstevel@tonic-gate if (!checkonly) { 33317c478bd9Sstevel@tonic-gate if (*i1 == -1) { 3332b3d0fa4fSseb udp->udp_ttl = ipp->ipp_unicast_hops = 3333f4b3ec61Sdh us->us_ipv6_hoplimit; 3334b3d0fa4fSseb ipp->ipp_fields &= ~IPPF_UNICAST_HOPS; 33357c478bd9Sstevel@tonic-gate /* Pass modified value to IP. */ 33367c478bd9Sstevel@tonic-gate *i1 = udp->udp_ttl; 33377c478bd9Sstevel@tonic-gate } else { 3338b3d0fa4fSseb udp->udp_ttl = ipp->ipp_unicast_hops = 33397c478bd9Sstevel@tonic-gate (uint8_t)*i1; 3340b3d0fa4fSseb ipp->ipp_fields |= IPPF_UNICAST_HOPS; 33417c478bd9Sstevel@tonic-gate } 33427c478bd9Sstevel@tonic-gate /* Rebuild the header template */ 3343fc80c0dfSnordmark error = udp_build_hdrs(udp); 33447c478bd9Sstevel@tonic-gate if (error != 0) { 33457c478bd9Sstevel@tonic-gate *outlenp = 0; 33467c478bd9Sstevel@tonic-gate return (error); 33477c478bd9Sstevel@tonic-gate } 33487c478bd9Sstevel@tonic-gate } 33497c478bd9Sstevel@tonic-gate break; 33507c478bd9Sstevel@tonic-gate case IPV6_MULTICAST_HOPS: 33517c478bd9Sstevel@tonic-gate /* -1 means use default */ 33527c478bd9Sstevel@tonic-gate if (*i1 < -1 || *i1 > IPV6_MAX_HOPS) { 33537c478bd9Sstevel@tonic-gate *outlenp = 0; 33547c478bd9Sstevel@tonic-gate return (EINVAL); 33557c478bd9Sstevel@tonic-gate } 33567c478bd9Sstevel@tonic-gate if (!checkonly) { 33577c478bd9Sstevel@tonic-gate if (*i1 == -1) { 33587c478bd9Sstevel@tonic-gate udp->udp_multicast_ttl = 3359b3d0fa4fSseb ipp->ipp_multicast_hops = 33607c478bd9Sstevel@tonic-gate IP_DEFAULT_MULTICAST_TTL; 3361b3d0fa4fSseb ipp->ipp_fields &= ~IPPF_MULTICAST_HOPS; 33627c478bd9Sstevel@tonic-gate /* Pass modified value to IP. */ 33637c478bd9Sstevel@tonic-gate *i1 = udp->udp_multicast_ttl; 33647c478bd9Sstevel@tonic-gate } else { 33657c478bd9Sstevel@tonic-gate udp->udp_multicast_ttl = 3366b3d0fa4fSseb ipp->ipp_multicast_hops = 33677c478bd9Sstevel@tonic-gate (uint8_t)*i1; 3368b3d0fa4fSseb ipp->ipp_fields |= IPPF_MULTICAST_HOPS; 33697c478bd9Sstevel@tonic-gate } 33707c478bd9Sstevel@tonic-gate } 33717c478bd9Sstevel@tonic-gate break; 33727c478bd9Sstevel@tonic-gate case IPV6_MULTICAST_LOOP: 33737c478bd9Sstevel@tonic-gate if (*i1 != 0 && *i1 != 1) { 33747c478bd9Sstevel@tonic-gate *outlenp = 0; 33757c478bd9Sstevel@tonic-gate return (EINVAL); 33767c478bd9Sstevel@tonic-gate } 33777c478bd9Sstevel@tonic-gate if (!checkonly) 3378ff550d0eSmasputra connp->conn_multicast_loop = *i1; 33797c478bd9Sstevel@tonic-gate break; 33807c478bd9Sstevel@tonic-gate case IPV6_JOIN_GROUP: 33817c478bd9Sstevel@tonic-gate case IPV6_LEAVE_GROUP: 33827c478bd9Sstevel@tonic-gate case MCAST_JOIN_GROUP: 33837c478bd9Sstevel@tonic-gate case MCAST_LEAVE_GROUP: 33847c478bd9Sstevel@tonic-gate case MCAST_BLOCK_SOURCE: 33857c478bd9Sstevel@tonic-gate case MCAST_UNBLOCK_SOURCE: 33867c478bd9Sstevel@tonic-gate case MCAST_JOIN_SOURCE_GROUP: 33877c478bd9Sstevel@tonic-gate case MCAST_LEAVE_SOURCE_GROUP: 33887c478bd9Sstevel@tonic-gate /* 33897c478bd9Sstevel@tonic-gate * "soft" error (negative) 33907c478bd9Sstevel@tonic-gate * option not handled at this level 33917c478bd9Sstevel@tonic-gate * Note: Do not modify *outlenp 33927c478bd9Sstevel@tonic-gate */ 33937c478bd9Sstevel@tonic-gate return (-EINVAL); 33947c478bd9Sstevel@tonic-gate case IPV6_BOUND_IF: 33957c478bd9Sstevel@tonic-gate if (!checkonly) 33967c478bd9Sstevel@tonic-gate udp->udp_bound_if = *i1; 33977c478bd9Sstevel@tonic-gate break; 33987c478bd9Sstevel@tonic-gate case IPV6_UNSPEC_SRC: 33997c478bd9Sstevel@tonic-gate if (!checkonly) 34007c478bd9Sstevel@tonic-gate udp->udp_unspec_source = onoff; 34017c478bd9Sstevel@tonic-gate break; 34027c478bd9Sstevel@tonic-gate /* 34037c478bd9Sstevel@tonic-gate * Set boolean switches for ancillary data delivery 34047c478bd9Sstevel@tonic-gate */ 34057c478bd9Sstevel@tonic-gate case IPV6_RECVPKTINFO: 34067c478bd9Sstevel@tonic-gate if (!checkonly) 340719a30e1aSrshoaib udp->udp_ip_recvpktinfo = onoff; 34087c478bd9Sstevel@tonic-gate break; 34097c478bd9Sstevel@tonic-gate case IPV6_RECVTCLASS: 34107c478bd9Sstevel@tonic-gate if (!checkonly) { 34117c478bd9Sstevel@tonic-gate udp->udp_ipv6_recvtclass = onoff; 34127c478bd9Sstevel@tonic-gate } 34137c478bd9Sstevel@tonic-gate break; 34147c478bd9Sstevel@tonic-gate case IPV6_RECVPATHMTU: 34157c478bd9Sstevel@tonic-gate if (!checkonly) { 34167c478bd9Sstevel@tonic-gate udp->udp_ipv6_recvpathmtu = onoff; 34177c478bd9Sstevel@tonic-gate } 34187c478bd9Sstevel@tonic-gate break; 34197c478bd9Sstevel@tonic-gate case IPV6_RECVHOPLIMIT: 34207c478bd9Sstevel@tonic-gate if (!checkonly) 34217c478bd9Sstevel@tonic-gate udp->udp_ipv6_recvhoplimit = onoff; 34227c478bd9Sstevel@tonic-gate break; 34237c478bd9Sstevel@tonic-gate case IPV6_RECVHOPOPTS: 34247c478bd9Sstevel@tonic-gate if (!checkonly) 34257c478bd9Sstevel@tonic-gate udp->udp_ipv6_recvhopopts = onoff; 34267c478bd9Sstevel@tonic-gate break; 34277c478bd9Sstevel@tonic-gate case IPV6_RECVDSTOPTS: 34287c478bd9Sstevel@tonic-gate if (!checkonly) 34297c478bd9Sstevel@tonic-gate udp->udp_ipv6_recvdstopts = onoff; 34307c478bd9Sstevel@tonic-gate break; 34317c478bd9Sstevel@tonic-gate case _OLD_IPV6_RECVDSTOPTS: 34327c478bd9Sstevel@tonic-gate if (!checkonly) 34337c478bd9Sstevel@tonic-gate udp->udp_old_ipv6_recvdstopts = onoff; 34347c478bd9Sstevel@tonic-gate break; 34357c478bd9Sstevel@tonic-gate case IPV6_RECVRTHDRDSTOPTS: 34367c478bd9Sstevel@tonic-gate if (!checkonly) 34377c478bd9Sstevel@tonic-gate udp->udp_ipv6_recvrthdrdstopts = onoff; 34387c478bd9Sstevel@tonic-gate break; 34397c478bd9Sstevel@tonic-gate case IPV6_RECVRTHDR: 34407c478bd9Sstevel@tonic-gate if (!checkonly) 34417c478bd9Sstevel@tonic-gate udp->udp_ipv6_recvrthdr = onoff; 34427c478bd9Sstevel@tonic-gate break; 34437c478bd9Sstevel@tonic-gate /* 34447c478bd9Sstevel@tonic-gate * Set sticky options or ancillary data. 34457c478bd9Sstevel@tonic-gate * If sticky options, (re)build any extension headers 34467c478bd9Sstevel@tonic-gate * that might be needed as a result. 34477c478bd9Sstevel@tonic-gate */ 34487c478bd9Sstevel@tonic-gate case IPV6_PKTINFO: 34497c478bd9Sstevel@tonic-gate /* 34507c478bd9Sstevel@tonic-gate * The source address and ifindex are verified 34517c478bd9Sstevel@tonic-gate * in ip_opt_set(). For ancillary data the 34527c478bd9Sstevel@tonic-gate * source address is checked in ip_wput_v6. 34537c478bd9Sstevel@tonic-gate */ 34547c478bd9Sstevel@tonic-gate if (inlen != 0 && inlen != sizeof (struct in6_pktinfo)) 34557c478bd9Sstevel@tonic-gate return (EINVAL); 34567c478bd9Sstevel@tonic-gate if (checkonly) 34577c478bd9Sstevel@tonic-gate break; 34587c478bd9Sstevel@tonic-gate 34597c478bd9Sstevel@tonic-gate if (inlen == 0) { 34607c478bd9Sstevel@tonic-gate ipp->ipp_fields &= ~(IPPF_IFINDEX|IPPF_ADDR); 34617c478bd9Sstevel@tonic-gate ipp->ipp_sticky_ignored |= 34627c478bd9Sstevel@tonic-gate (IPPF_IFINDEX|IPPF_ADDR); 34637c478bd9Sstevel@tonic-gate } else { 34647c478bd9Sstevel@tonic-gate struct in6_pktinfo *pkti; 34657c478bd9Sstevel@tonic-gate 34667c478bd9Sstevel@tonic-gate pkti = (struct in6_pktinfo *)invalp; 34677c478bd9Sstevel@tonic-gate ipp->ipp_ifindex = pkti->ipi6_ifindex; 34687c478bd9Sstevel@tonic-gate ipp->ipp_addr = pkti->ipi6_addr; 34697c478bd9Sstevel@tonic-gate if (ipp->ipp_ifindex != 0) 34707c478bd9Sstevel@tonic-gate ipp->ipp_fields |= IPPF_IFINDEX; 34717c478bd9Sstevel@tonic-gate else 34727c478bd9Sstevel@tonic-gate ipp->ipp_fields &= ~IPPF_IFINDEX; 34737c478bd9Sstevel@tonic-gate if (!IN6_IS_ADDR_UNSPECIFIED( 34747c478bd9Sstevel@tonic-gate &ipp->ipp_addr)) 34757c478bd9Sstevel@tonic-gate ipp->ipp_fields |= IPPF_ADDR; 34767c478bd9Sstevel@tonic-gate else 34777c478bd9Sstevel@tonic-gate ipp->ipp_fields &= ~IPPF_ADDR; 34787c478bd9Sstevel@tonic-gate } 34797c478bd9Sstevel@tonic-gate if (sticky) { 3480fc80c0dfSnordmark error = udp_build_hdrs(udp); 34817c478bd9Sstevel@tonic-gate if (error != 0) 34827c478bd9Sstevel@tonic-gate return (error); 34837c478bd9Sstevel@tonic-gate } 34847c478bd9Sstevel@tonic-gate break; 34857c478bd9Sstevel@tonic-gate case IPV6_HOPLIMIT: 3486b3d0fa4fSseb if (sticky) 3487b3d0fa4fSseb return (EINVAL); 34887c478bd9Sstevel@tonic-gate if (inlen != 0 && inlen != sizeof (int)) 34897c478bd9Sstevel@tonic-gate return (EINVAL); 34907c478bd9Sstevel@tonic-gate if (checkonly) 34917c478bd9Sstevel@tonic-gate break; 34927c478bd9Sstevel@tonic-gate 34937c478bd9Sstevel@tonic-gate if (inlen == 0) { 34947c478bd9Sstevel@tonic-gate ipp->ipp_fields &= ~IPPF_HOPLIMIT; 34957c478bd9Sstevel@tonic-gate ipp->ipp_sticky_ignored |= IPPF_HOPLIMIT; 34967c478bd9Sstevel@tonic-gate } else { 34977c478bd9Sstevel@tonic-gate if (*i1 > 255 || *i1 < -1) 34987c478bd9Sstevel@tonic-gate return (EINVAL); 34997c478bd9Sstevel@tonic-gate if (*i1 == -1) 3500f4b3ec61Sdh ipp->ipp_hoplimit = 3501f4b3ec61Sdh us->us_ipv6_hoplimit; 35027c478bd9Sstevel@tonic-gate else 35037c478bd9Sstevel@tonic-gate ipp->ipp_hoplimit = *i1; 35047c478bd9Sstevel@tonic-gate ipp->ipp_fields |= IPPF_HOPLIMIT; 35057c478bd9Sstevel@tonic-gate } 35067c478bd9Sstevel@tonic-gate break; 35077c478bd9Sstevel@tonic-gate case IPV6_TCLASS: 35087c478bd9Sstevel@tonic-gate if (inlen != 0 && inlen != sizeof (int)) 35097c478bd9Sstevel@tonic-gate return (EINVAL); 35107c478bd9Sstevel@tonic-gate if (checkonly) 35117c478bd9Sstevel@tonic-gate break; 35127c478bd9Sstevel@tonic-gate 35137c478bd9Sstevel@tonic-gate if (inlen == 0) { 35147c478bd9Sstevel@tonic-gate ipp->ipp_fields &= ~IPPF_TCLASS; 35157c478bd9Sstevel@tonic-gate ipp->ipp_sticky_ignored |= IPPF_TCLASS; 35167c478bd9Sstevel@tonic-gate } else { 35177c478bd9Sstevel@tonic-gate if (*i1 > 255 || *i1 < -1) 35187c478bd9Sstevel@tonic-gate return (EINVAL); 35197c478bd9Sstevel@tonic-gate if (*i1 == -1) 35207c478bd9Sstevel@tonic-gate ipp->ipp_tclass = 0; 35217c478bd9Sstevel@tonic-gate else 35227c478bd9Sstevel@tonic-gate ipp->ipp_tclass = *i1; 35237c478bd9Sstevel@tonic-gate ipp->ipp_fields |= IPPF_TCLASS; 35247c478bd9Sstevel@tonic-gate } 35257c478bd9Sstevel@tonic-gate if (sticky) { 3526fc80c0dfSnordmark error = udp_build_hdrs(udp); 35277c478bd9Sstevel@tonic-gate if (error != 0) 35287c478bd9Sstevel@tonic-gate return (error); 35297c478bd9Sstevel@tonic-gate } 35307c478bd9Sstevel@tonic-gate break; 35317c478bd9Sstevel@tonic-gate case IPV6_NEXTHOP: 35327c478bd9Sstevel@tonic-gate /* 35337c478bd9Sstevel@tonic-gate * IP will verify that the nexthop is reachable 35347c478bd9Sstevel@tonic-gate * and fail for sticky options. 35357c478bd9Sstevel@tonic-gate */ 35367c478bd9Sstevel@tonic-gate if (inlen != 0 && inlen != sizeof (sin6_t)) 35377c478bd9Sstevel@tonic-gate return (EINVAL); 35387c478bd9Sstevel@tonic-gate if (checkonly) 35397c478bd9Sstevel@tonic-gate break; 35407c478bd9Sstevel@tonic-gate 35417c478bd9Sstevel@tonic-gate if (inlen == 0) { 35427c478bd9Sstevel@tonic-gate ipp->ipp_fields &= ~IPPF_NEXTHOP; 35437c478bd9Sstevel@tonic-gate ipp->ipp_sticky_ignored |= IPPF_NEXTHOP; 35447c478bd9Sstevel@tonic-gate } else { 35457c478bd9Sstevel@tonic-gate sin6_t *sin6 = (sin6_t *)invalp; 35467c478bd9Sstevel@tonic-gate 35477c478bd9Sstevel@tonic-gate if (sin6->sin6_family != AF_INET6) 35487c478bd9Sstevel@tonic-gate return (EAFNOSUPPORT); 35497c478bd9Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED( 35507c478bd9Sstevel@tonic-gate &sin6->sin6_addr)) 35517c478bd9Sstevel@tonic-gate return (EADDRNOTAVAIL); 35527c478bd9Sstevel@tonic-gate ipp->ipp_nexthop = sin6->sin6_addr; 35537c478bd9Sstevel@tonic-gate if (!IN6_IS_ADDR_UNSPECIFIED( 35547c478bd9Sstevel@tonic-gate &ipp->ipp_nexthop)) 35557c478bd9Sstevel@tonic-gate ipp->ipp_fields |= IPPF_NEXTHOP; 35567c478bd9Sstevel@tonic-gate else 35577c478bd9Sstevel@tonic-gate ipp->ipp_fields &= ~IPPF_NEXTHOP; 35587c478bd9Sstevel@tonic-gate } 35597c478bd9Sstevel@tonic-gate if (sticky) { 3560fc80c0dfSnordmark error = udp_build_hdrs(udp); 35617c478bd9Sstevel@tonic-gate if (error != 0) 35627c478bd9Sstevel@tonic-gate return (error); 35637c478bd9Sstevel@tonic-gate } 35647c478bd9Sstevel@tonic-gate break; 35657c478bd9Sstevel@tonic-gate case IPV6_HOPOPTS: { 35667c478bd9Sstevel@tonic-gate ip6_hbh_t *hopts = (ip6_hbh_t *)invalp; 35677c478bd9Sstevel@tonic-gate /* 35687c478bd9Sstevel@tonic-gate * Sanity checks - minimum size, size a multiple of 35697c478bd9Sstevel@tonic-gate * eight bytes, and matching size passed in. 35707c478bd9Sstevel@tonic-gate */ 35717c478bd9Sstevel@tonic-gate if (inlen != 0 && 35727c478bd9Sstevel@tonic-gate inlen != (8 * (hopts->ip6h_len + 1))) 35737c478bd9Sstevel@tonic-gate return (EINVAL); 35747c478bd9Sstevel@tonic-gate 35757c478bd9Sstevel@tonic-gate if (checkonly) 35767c478bd9Sstevel@tonic-gate break; 35777c478bd9Sstevel@tonic-gate 357845916cd2Sjpk error = optcom_pkt_set(invalp, inlen, sticky, 357945916cd2Sjpk (uchar_t **)&ipp->ipp_hopopts, 358045916cd2Sjpk &ipp->ipp_hopoptslen, 358145916cd2Sjpk sticky ? udp->udp_label_len_v6 : 0); 358245916cd2Sjpk if (error != 0) 358345916cd2Sjpk return (error); 358445916cd2Sjpk if (ipp->ipp_hopoptslen == 0) { 35857c478bd9Sstevel@tonic-gate ipp->ipp_fields &= ~IPPF_HOPOPTS; 35867c478bd9Sstevel@tonic-gate ipp->ipp_sticky_ignored |= IPPF_HOPOPTS; 35877c478bd9Sstevel@tonic-gate } else { 35887c478bd9Sstevel@tonic-gate ipp->ipp_fields |= IPPF_HOPOPTS; 35897c478bd9Sstevel@tonic-gate } 35907c478bd9Sstevel@tonic-gate if (sticky) { 3591fc80c0dfSnordmark error = udp_build_hdrs(udp); 35927c478bd9Sstevel@tonic-gate if (error != 0) 35937c478bd9Sstevel@tonic-gate return (error); 35947c478bd9Sstevel@tonic-gate } 35957c478bd9Sstevel@tonic-gate break; 35967c478bd9Sstevel@tonic-gate } 35977c478bd9Sstevel@tonic-gate case IPV6_RTHDRDSTOPTS: { 35987c478bd9Sstevel@tonic-gate ip6_dest_t *dopts = (ip6_dest_t *)invalp; 35997c478bd9Sstevel@tonic-gate 36007c478bd9Sstevel@tonic-gate /* 36017c478bd9Sstevel@tonic-gate * Sanity checks - minimum size, size a multiple of 36027c478bd9Sstevel@tonic-gate * eight bytes, and matching size passed in. 36037c478bd9Sstevel@tonic-gate */ 36047c478bd9Sstevel@tonic-gate if (inlen != 0 && 36057c478bd9Sstevel@tonic-gate inlen != (8 * (dopts->ip6d_len + 1))) 36067c478bd9Sstevel@tonic-gate return (EINVAL); 36077c478bd9Sstevel@tonic-gate 36087c478bd9Sstevel@tonic-gate if (checkonly) 36097c478bd9Sstevel@tonic-gate break; 36107c478bd9Sstevel@tonic-gate 36117c478bd9Sstevel@tonic-gate if (inlen == 0) { 36127c478bd9Sstevel@tonic-gate if (sticky && 36137c478bd9Sstevel@tonic-gate (ipp->ipp_fields & IPPF_RTDSTOPTS) != 0) { 36147c478bd9Sstevel@tonic-gate kmem_free(ipp->ipp_rtdstopts, 36157c478bd9Sstevel@tonic-gate ipp->ipp_rtdstoptslen); 36167c478bd9Sstevel@tonic-gate ipp->ipp_rtdstopts = NULL; 36177c478bd9Sstevel@tonic-gate ipp->ipp_rtdstoptslen = 0; 36187c478bd9Sstevel@tonic-gate } 3619ff550d0eSmasputra 36207c478bd9Sstevel@tonic-gate ipp->ipp_fields &= ~IPPF_RTDSTOPTS; 36217c478bd9Sstevel@tonic-gate ipp->ipp_sticky_ignored |= IPPF_RTDSTOPTS; 36227c478bd9Sstevel@tonic-gate } else { 362345916cd2Sjpk error = optcom_pkt_set(invalp, inlen, sticky, 36247c478bd9Sstevel@tonic-gate (uchar_t **)&ipp->ipp_rtdstopts, 362545916cd2Sjpk &ipp->ipp_rtdstoptslen, 0); 36267c478bd9Sstevel@tonic-gate if (error != 0) 36277c478bd9Sstevel@tonic-gate return (error); 36287c478bd9Sstevel@tonic-gate ipp->ipp_fields |= IPPF_RTDSTOPTS; 36297c478bd9Sstevel@tonic-gate } 36307c478bd9Sstevel@tonic-gate if (sticky) { 3631fc80c0dfSnordmark error = udp_build_hdrs(udp); 36327c478bd9Sstevel@tonic-gate if (error != 0) 36337c478bd9Sstevel@tonic-gate return (error); 36347c478bd9Sstevel@tonic-gate } 36357c478bd9Sstevel@tonic-gate break; 36367c478bd9Sstevel@tonic-gate } 36377c478bd9Sstevel@tonic-gate case IPV6_DSTOPTS: { 36387c478bd9Sstevel@tonic-gate ip6_dest_t *dopts = (ip6_dest_t *)invalp; 36397c478bd9Sstevel@tonic-gate 36407c478bd9Sstevel@tonic-gate /* 36417c478bd9Sstevel@tonic-gate * Sanity checks - minimum size, size a multiple of 36427c478bd9Sstevel@tonic-gate * eight bytes, and matching size passed in. 36437c478bd9Sstevel@tonic-gate */ 36447c478bd9Sstevel@tonic-gate if (inlen != 0 && 36457c478bd9Sstevel@tonic-gate inlen != (8 * (dopts->ip6d_len + 1))) 36467c478bd9Sstevel@tonic-gate return (EINVAL); 36477c478bd9Sstevel@tonic-gate 36487c478bd9Sstevel@tonic-gate if (checkonly) 36497c478bd9Sstevel@tonic-gate break; 36507c478bd9Sstevel@tonic-gate 36517c478bd9Sstevel@tonic-gate if (inlen == 0) { 36527c478bd9Sstevel@tonic-gate if (sticky && 36537c478bd9Sstevel@tonic-gate (ipp->ipp_fields & IPPF_DSTOPTS) != 0) { 36547c478bd9Sstevel@tonic-gate kmem_free(ipp->ipp_dstopts, 36557c478bd9Sstevel@tonic-gate ipp->ipp_dstoptslen); 36567c478bd9Sstevel@tonic-gate ipp->ipp_dstopts = NULL; 36577c478bd9Sstevel@tonic-gate ipp->ipp_dstoptslen = 0; 36587c478bd9Sstevel@tonic-gate } 36597c478bd9Sstevel@tonic-gate ipp->ipp_fields &= ~IPPF_DSTOPTS; 36607c478bd9Sstevel@tonic-gate ipp->ipp_sticky_ignored |= IPPF_DSTOPTS; 36617c478bd9Sstevel@tonic-gate } else { 366245916cd2Sjpk error = optcom_pkt_set(invalp, inlen, sticky, 36637c478bd9Sstevel@tonic-gate (uchar_t **)&ipp->ipp_dstopts, 366445916cd2Sjpk &ipp->ipp_dstoptslen, 0); 36657c478bd9Sstevel@tonic-gate if (error != 0) 36667c478bd9Sstevel@tonic-gate return (error); 36677c478bd9Sstevel@tonic-gate ipp->ipp_fields |= IPPF_DSTOPTS; 36687c478bd9Sstevel@tonic-gate } 36697c478bd9Sstevel@tonic-gate if (sticky) { 3670fc80c0dfSnordmark error = udp_build_hdrs(udp); 36717c478bd9Sstevel@tonic-gate if (error != 0) 36727c478bd9Sstevel@tonic-gate return (error); 36737c478bd9Sstevel@tonic-gate } 36747c478bd9Sstevel@tonic-gate break; 36757c478bd9Sstevel@tonic-gate } 36767c478bd9Sstevel@tonic-gate case IPV6_RTHDR: { 36777c478bd9Sstevel@tonic-gate ip6_rthdr_t *rt = (ip6_rthdr_t *)invalp; 36787c478bd9Sstevel@tonic-gate 36797c478bd9Sstevel@tonic-gate /* 36807c478bd9Sstevel@tonic-gate * Sanity checks - minimum size, size a multiple of 36817c478bd9Sstevel@tonic-gate * eight bytes, and matching size passed in. 36827c478bd9Sstevel@tonic-gate */ 36837c478bd9Sstevel@tonic-gate if (inlen != 0 && 36847c478bd9Sstevel@tonic-gate inlen != (8 * (rt->ip6r_len + 1))) 36857c478bd9Sstevel@tonic-gate return (EINVAL); 36867c478bd9Sstevel@tonic-gate 36877c478bd9Sstevel@tonic-gate if (checkonly) 36887c478bd9Sstevel@tonic-gate break; 36897c478bd9Sstevel@tonic-gate 36907c478bd9Sstevel@tonic-gate if (inlen == 0) { 36917c478bd9Sstevel@tonic-gate if (sticky && 36927c478bd9Sstevel@tonic-gate (ipp->ipp_fields & IPPF_RTHDR) != 0) { 36937c478bd9Sstevel@tonic-gate kmem_free(ipp->ipp_rthdr, 36947c478bd9Sstevel@tonic-gate ipp->ipp_rthdrlen); 36957c478bd9Sstevel@tonic-gate ipp->ipp_rthdr = NULL; 36967c478bd9Sstevel@tonic-gate ipp->ipp_rthdrlen = 0; 36977c478bd9Sstevel@tonic-gate } 36987c478bd9Sstevel@tonic-gate ipp->ipp_fields &= ~IPPF_RTHDR; 36997c478bd9Sstevel@tonic-gate ipp->ipp_sticky_ignored |= IPPF_RTHDR; 37007c478bd9Sstevel@tonic-gate } else { 370145916cd2Sjpk error = optcom_pkt_set(invalp, inlen, sticky, 37027c478bd9Sstevel@tonic-gate (uchar_t **)&ipp->ipp_rthdr, 370345916cd2Sjpk &ipp->ipp_rthdrlen, 0); 37047c478bd9Sstevel@tonic-gate if (error != 0) 37057c478bd9Sstevel@tonic-gate return (error); 37067c478bd9Sstevel@tonic-gate ipp->ipp_fields |= IPPF_RTHDR; 37077c478bd9Sstevel@tonic-gate } 37087c478bd9Sstevel@tonic-gate if (sticky) { 3709fc80c0dfSnordmark error = udp_build_hdrs(udp); 37107c478bd9Sstevel@tonic-gate if (error != 0) 37117c478bd9Sstevel@tonic-gate return (error); 37127c478bd9Sstevel@tonic-gate } 37137c478bd9Sstevel@tonic-gate break; 37147c478bd9Sstevel@tonic-gate } 37157c478bd9Sstevel@tonic-gate 37167c478bd9Sstevel@tonic-gate case IPV6_DONTFRAG: 37177c478bd9Sstevel@tonic-gate if (checkonly) 37187c478bd9Sstevel@tonic-gate break; 37197c478bd9Sstevel@tonic-gate 37207c478bd9Sstevel@tonic-gate if (onoff) { 37217c478bd9Sstevel@tonic-gate ipp->ipp_fields |= IPPF_DONTFRAG; 37227c478bd9Sstevel@tonic-gate } else { 37237c478bd9Sstevel@tonic-gate ipp->ipp_fields &= ~IPPF_DONTFRAG; 37247c478bd9Sstevel@tonic-gate } 37257c478bd9Sstevel@tonic-gate break; 37267c478bd9Sstevel@tonic-gate 37277c478bd9Sstevel@tonic-gate case IPV6_USE_MIN_MTU: 37287c478bd9Sstevel@tonic-gate if (inlen != sizeof (int)) 37297c478bd9Sstevel@tonic-gate return (EINVAL); 37307c478bd9Sstevel@tonic-gate 37317c478bd9Sstevel@tonic-gate if (*i1 < -1 || *i1 > 1) 37327c478bd9Sstevel@tonic-gate return (EINVAL); 37337c478bd9Sstevel@tonic-gate 37347c478bd9Sstevel@tonic-gate if (checkonly) 37357c478bd9Sstevel@tonic-gate break; 37367c478bd9Sstevel@tonic-gate 37377c478bd9Sstevel@tonic-gate ipp->ipp_fields |= IPPF_USE_MIN_MTU; 37387c478bd9Sstevel@tonic-gate ipp->ipp_use_min_mtu = *i1; 37397c478bd9Sstevel@tonic-gate break; 37407c478bd9Sstevel@tonic-gate 37417c478bd9Sstevel@tonic-gate case IPV6_BOUND_PIF: 37427c478bd9Sstevel@tonic-gate case IPV6_SEC_OPT: 37437c478bd9Sstevel@tonic-gate case IPV6_DONTFAILOVER_IF: 37447c478bd9Sstevel@tonic-gate case IPV6_SRC_PREFERENCES: 37457c478bd9Sstevel@tonic-gate case IPV6_V6ONLY: 37467c478bd9Sstevel@tonic-gate /* Handled at the IP level */ 37477c478bd9Sstevel@tonic-gate return (-EINVAL); 37487c478bd9Sstevel@tonic-gate default: 37497c478bd9Sstevel@tonic-gate *outlenp = 0; 37507c478bd9Sstevel@tonic-gate return (EINVAL); 37517c478bd9Sstevel@tonic-gate } 37527c478bd9Sstevel@tonic-gate break; 37537c478bd9Sstevel@tonic-gate } /* end IPPROTO_IPV6 */ 37547c478bd9Sstevel@tonic-gate case IPPROTO_UDP: 37557c478bd9Sstevel@tonic-gate switch (name) { 37567c478bd9Sstevel@tonic-gate case UDP_ANONPRIVBIND: 37577c478bd9Sstevel@tonic-gate if ((error = secpolicy_net_privaddr(cr, 0)) != 0) { 37587c478bd9Sstevel@tonic-gate *outlenp = 0; 37597c478bd9Sstevel@tonic-gate return (error); 37607c478bd9Sstevel@tonic-gate } 37617c478bd9Sstevel@tonic-gate if (!checkonly) { 37627c478bd9Sstevel@tonic-gate udp->udp_anon_priv_bind = onoff; 37637c478bd9Sstevel@tonic-gate } 37647c478bd9Sstevel@tonic-gate break; 37657c478bd9Sstevel@tonic-gate case UDP_EXCLBIND: 37667c478bd9Sstevel@tonic-gate if (!checkonly) 37677c478bd9Sstevel@tonic-gate udp->udp_exclbind = onoff; 37687c478bd9Sstevel@tonic-gate break; 37697c478bd9Sstevel@tonic-gate case UDP_RCVHDR: 37707c478bd9Sstevel@tonic-gate if (!checkonly) 37717c478bd9Sstevel@tonic-gate udp->udp_rcvhdr = onoff; 37727c478bd9Sstevel@tonic-gate break; 3773437220cdSdanmcd case UDP_NAT_T_ENDPOINT: 3774437220cdSdanmcd if ((error = secpolicy_ip_config(cr, B_FALSE)) != 0) { 3775437220cdSdanmcd *outlenp = 0; 3776437220cdSdanmcd return (error); 3777437220cdSdanmcd } 3778437220cdSdanmcd 3779437220cdSdanmcd /* 3780437220cdSdanmcd * Use udp_family instead so we can avoid ambiguitites 3781437220cdSdanmcd * with AF_INET6 sockets that may switch from IPv4 3782437220cdSdanmcd * to IPv6. 3783437220cdSdanmcd */ 3784437220cdSdanmcd if (udp->udp_family != AF_INET) { 3785437220cdSdanmcd *outlenp = 0; 3786437220cdSdanmcd return (EAFNOSUPPORT); 3787437220cdSdanmcd } 3788437220cdSdanmcd 3789437220cdSdanmcd if (!checkonly) { 3790437220cdSdanmcd udp->udp_nat_t_endpoint = onoff; 3791437220cdSdanmcd 3792437220cdSdanmcd udp->udp_max_hdr_len = IP_SIMPLE_HDR_LENGTH + 3793437220cdSdanmcd UDPH_SIZE + udp->udp_ip_snd_options_len; 3794437220cdSdanmcd 3795437220cdSdanmcd /* Also, adjust wroff */ 3796437220cdSdanmcd if (onoff) { 3797437220cdSdanmcd udp->udp_max_hdr_len += 3798437220cdSdanmcd sizeof (uint32_t); 3799437220cdSdanmcd } 3800437220cdSdanmcd (void) mi_set_sth_wroff(RD(q), 3801437220cdSdanmcd udp->udp_max_hdr_len + us->us_wroff_extra); 3802437220cdSdanmcd } 3803437220cdSdanmcd break; 38047c478bd9Sstevel@tonic-gate default: 38057c478bd9Sstevel@tonic-gate *outlenp = 0; 38067c478bd9Sstevel@tonic-gate return (EINVAL); 38077c478bd9Sstevel@tonic-gate } 38087c478bd9Sstevel@tonic-gate break; 38097c478bd9Sstevel@tonic-gate default: 38107c478bd9Sstevel@tonic-gate *outlenp = 0; 38117c478bd9Sstevel@tonic-gate return (EINVAL); 38127c478bd9Sstevel@tonic-gate } 38137c478bd9Sstevel@tonic-gate /* 38147c478bd9Sstevel@tonic-gate * Common case of OK return with outval same as inval. 38157c478bd9Sstevel@tonic-gate */ 38167c478bd9Sstevel@tonic-gate if (invalp != outvalp) { 38177c478bd9Sstevel@tonic-gate /* don't trust bcopy for identical src/dst */ 38187c478bd9Sstevel@tonic-gate (void) bcopy(invalp, outvalp, inlen); 38197c478bd9Sstevel@tonic-gate } 38207c478bd9Sstevel@tonic-gate *outlenp = inlen; 38217c478bd9Sstevel@tonic-gate return (0); 38227c478bd9Sstevel@tonic-gate } 38237c478bd9Sstevel@tonic-gate 3824fc80c0dfSnordmark int 3825fc80c0dfSnordmark udp_opt_set(queue_t *q, uint_t optset_context, int level, 3826fc80c0dfSnordmark int name, uint_t inlen, uchar_t *invalp, uint_t *outlenp, 3827fc80c0dfSnordmark uchar_t *outvalp, void *thisdg_attrs, cred_t *cr, mblk_t *mblk) 3828fc80c0dfSnordmark { 3829fc80c0dfSnordmark udp_t *udp; 3830fc80c0dfSnordmark int err; 3831fc80c0dfSnordmark 3832fc80c0dfSnordmark udp = Q_TO_UDP(q); 3833fc80c0dfSnordmark 3834fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 3835fc80c0dfSnordmark err = udp_opt_set_locked(q, optset_context, level, name, inlen, invalp, 3836fc80c0dfSnordmark outlenp, outvalp, thisdg_attrs, cr, mblk); 3837fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 3838fc80c0dfSnordmark return (err); 3839fc80c0dfSnordmark } 3840fc80c0dfSnordmark 38417c478bd9Sstevel@tonic-gate /* 38427c478bd9Sstevel@tonic-gate * Update udp_sticky_hdrs based on udp_sticky_ipp, udp_v6src, and udp_ttl. 38437c478bd9Sstevel@tonic-gate * The headers include ip6i_t (if needed), ip6_t, any sticky extension 38447c478bd9Sstevel@tonic-gate * headers, and the udp header. 38457c478bd9Sstevel@tonic-gate * Returns failure if can't allocate memory. 38467c478bd9Sstevel@tonic-gate */ 38477c478bd9Sstevel@tonic-gate static int 3848fc80c0dfSnordmark udp_build_hdrs(udp_t *udp) 38497c478bd9Sstevel@tonic-gate { 3850f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 38517c478bd9Sstevel@tonic-gate uchar_t *hdrs; 38527c478bd9Sstevel@tonic-gate uint_t hdrs_len; 38537c478bd9Sstevel@tonic-gate ip6_t *ip6h; 38547c478bd9Sstevel@tonic-gate ip6i_t *ip6i; 38557c478bd9Sstevel@tonic-gate udpha_t *udpha; 38567c478bd9Sstevel@tonic-gate ip6_pkt_t *ipp = &udp->udp_sticky_ipp; 3857fc80c0dfSnordmark size_t sth_wroff; 38587c478bd9Sstevel@tonic-gate 3859fc80c0dfSnordmark ASSERT(RW_WRITE_HELD(&udp->udp_rwlock)); 38607c478bd9Sstevel@tonic-gate hdrs_len = ip_total_hdrs_len_v6(ipp) + UDPH_SIZE; 38617c478bd9Sstevel@tonic-gate ASSERT(hdrs_len != 0); 38627c478bd9Sstevel@tonic-gate if (hdrs_len != udp->udp_sticky_hdrs_len) { 38637c478bd9Sstevel@tonic-gate /* Need to reallocate */ 38647c478bd9Sstevel@tonic-gate hdrs = kmem_alloc(hdrs_len, KM_NOSLEEP); 38657c478bd9Sstevel@tonic-gate if (hdrs == NULL) 38667c478bd9Sstevel@tonic-gate return (ENOMEM); 38677c478bd9Sstevel@tonic-gate 38687c478bd9Sstevel@tonic-gate if (udp->udp_sticky_hdrs_len != 0) { 38697c478bd9Sstevel@tonic-gate kmem_free(udp->udp_sticky_hdrs, 38707c478bd9Sstevel@tonic-gate udp->udp_sticky_hdrs_len); 38717c478bd9Sstevel@tonic-gate } 38727c478bd9Sstevel@tonic-gate udp->udp_sticky_hdrs = hdrs; 38737c478bd9Sstevel@tonic-gate udp->udp_sticky_hdrs_len = hdrs_len; 38747c478bd9Sstevel@tonic-gate } 38757c478bd9Sstevel@tonic-gate ip_build_hdrs_v6(udp->udp_sticky_hdrs, 38767c478bd9Sstevel@tonic-gate udp->udp_sticky_hdrs_len - UDPH_SIZE, ipp, IPPROTO_UDP); 38777c478bd9Sstevel@tonic-gate 38787c478bd9Sstevel@tonic-gate /* Set header fields not in ipp */ 38797c478bd9Sstevel@tonic-gate if (ipp->ipp_fields & IPPF_HAS_IP6I) { 38807c478bd9Sstevel@tonic-gate ip6i = (ip6i_t *)udp->udp_sticky_hdrs; 38817c478bd9Sstevel@tonic-gate ip6h = (ip6_t *)&ip6i[1]; 38827c478bd9Sstevel@tonic-gate } else { 38837c478bd9Sstevel@tonic-gate ip6h = (ip6_t *)udp->udp_sticky_hdrs; 38847c478bd9Sstevel@tonic-gate } 38857c478bd9Sstevel@tonic-gate 38867c478bd9Sstevel@tonic-gate if (!(ipp->ipp_fields & IPPF_ADDR)) 38877c478bd9Sstevel@tonic-gate ip6h->ip6_src = udp->udp_v6src; 38887c478bd9Sstevel@tonic-gate 38897c478bd9Sstevel@tonic-gate udpha = (udpha_t *)(udp->udp_sticky_hdrs + hdrs_len - UDPH_SIZE); 38907c478bd9Sstevel@tonic-gate udpha->uha_src_port = udp->udp_port; 38917c478bd9Sstevel@tonic-gate 38927c478bd9Sstevel@tonic-gate /* Try to get everything in a single mblk */ 38937c478bd9Sstevel@tonic-gate if (hdrs_len > udp->udp_max_hdr_len) { 38947c478bd9Sstevel@tonic-gate udp->udp_max_hdr_len = hdrs_len; 3895fc80c0dfSnordmark sth_wroff = udp->udp_max_hdr_len + us->us_wroff_extra; 3896fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 3897fc80c0dfSnordmark (void) mi_set_sth_wroff(udp->udp_connp->conn_rq, sth_wroff); 3898fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 38997c478bd9Sstevel@tonic-gate } 39007c478bd9Sstevel@tonic-gate return (0); 39017c478bd9Sstevel@tonic-gate } 39027c478bd9Sstevel@tonic-gate 39037c478bd9Sstevel@tonic-gate /* 39047c478bd9Sstevel@tonic-gate * This routine retrieves the value of an ND variable in a udpparam_t 39057c478bd9Sstevel@tonic-gate * structure. It is called through nd_getset when a user reads the 39067c478bd9Sstevel@tonic-gate * variable. 39077c478bd9Sstevel@tonic-gate */ 39087c478bd9Sstevel@tonic-gate /* ARGSUSED */ 39097c478bd9Sstevel@tonic-gate static int 39107c478bd9Sstevel@tonic-gate udp_param_get(queue_t *q, mblk_t *mp, caddr_t cp, cred_t *cr) 39117c478bd9Sstevel@tonic-gate { 39127c478bd9Sstevel@tonic-gate udpparam_t *udppa = (udpparam_t *)cp; 39137c478bd9Sstevel@tonic-gate 39147c478bd9Sstevel@tonic-gate (void) mi_mpprintf(mp, "%d", udppa->udp_param_value); 39157c478bd9Sstevel@tonic-gate return (0); 39167c478bd9Sstevel@tonic-gate } 39177c478bd9Sstevel@tonic-gate 39187c478bd9Sstevel@tonic-gate /* 39197c478bd9Sstevel@tonic-gate * Walk through the param array specified registering each element with the 39207c478bd9Sstevel@tonic-gate * named dispatch (ND) handler. 39217c478bd9Sstevel@tonic-gate */ 39227c478bd9Sstevel@tonic-gate static boolean_t 3923f4b3ec61Sdh udp_param_register(IDP *ndp, udpparam_t *udppa, int cnt) 39247c478bd9Sstevel@tonic-gate { 39257c478bd9Sstevel@tonic-gate for (; cnt-- > 0; udppa++) { 39267c478bd9Sstevel@tonic-gate if (udppa->udp_param_name && udppa->udp_param_name[0]) { 3927f4b3ec61Sdh if (!nd_load(ndp, udppa->udp_param_name, 39287c478bd9Sstevel@tonic-gate udp_param_get, udp_param_set, 39297c478bd9Sstevel@tonic-gate (caddr_t)udppa)) { 3930f4b3ec61Sdh nd_free(ndp); 39317c478bd9Sstevel@tonic-gate return (B_FALSE); 39327c478bd9Sstevel@tonic-gate } 39337c478bd9Sstevel@tonic-gate } 39347c478bd9Sstevel@tonic-gate } 3935f4b3ec61Sdh if (!nd_load(ndp, "udp_extra_priv_ports", 39367c478bd9Sstevel@tonic-gate udp_extra_priv_ports_get, NULL, NULL)) { 3937f4b3ec61Sdh nd_free(ndp); 39387c478bd9Sstevel@tonic-gate return (B_FALSE); 39397c478bd9Sstevel@tonic-gate } 3940f4b3ec61Sdh if (!nd_load(ndp, "udp_extra_priv_ports_add", 39417c478bd9Sstevel@tonic-gate NULL, udp_extra_priv_ports_add, NULL)) { 3942f4b3ec61Sdh nd_free(ndp); 39437c478bd9Sstevel@tonic-gate return (B_FALSE); 39447c478bd9Sstevel@tonic-gate } 3945f4b3ec61Sdh if (!nd_load(ndp, "udp_extra_priv_ports_del", 39467c478bd9Sstevel@tonic-gate NULL, udp_extra_priv_ports_del, NULL)) { 3947f4b3ec61Sdh nd_free(ndp); 39487c478bd9Sstevel@tonic-gate return (B_FALSE); 39497c478bd9Sstevel@tonic-gate } 3950f4b3ec61Sdh if (!nd_load(ndp, "udp_status", udp_status_report, NULL, 39517c478bd9Sstevel@tonic-gate NULL)) { 3952f4b3ec61Sdh nd_free(ndp); 39537c478bd9Sstevel@tonic-gate return (B_FALSE); 39547c478bd9Sstevel@tonic-gate } 3955f4b3ec61Sdh if (!nd_load(ndp, "udp_bind_hash", udp_bind_hash_report, NULL, 39567c478bd9Sstevel@tonic-gate NULL)) { 3957f4b3ec61Sdh nd_free(ndp); 39587c478bd9Sstevel@tonic-gate return (B_FALSE); 39597c478bd9Sstevel@tonic-gate } 39607c478bd9Sstevel@tonic-gate return (B_TRUE); 39617c478bd9Sstevel@tonic-gate } 39627c478bd9Sstevel@tonic-gate 39637c478bd9Sstevel@tonic-gate /* This routine sets an ND variable in a udpparam_t structure. */ 39647c478bd9Sstevel@tonic-gate /* ARGSUSED */ 39657c478bd9Sstevel@tonic-gate static int 39667c478bd9Sstevel@tonic-gate udp_param_set(queue_t *q, mblk_t *mp, char *value, caddr_t cp, cred_t *cr) 39677c478bd9Sstevel@tonic-gate { 39687c478bd9Sstevel@tonic-gate long new_value; 39697c478bd9Sstevel@tonic-gate udpparam_t *udppa = (udpparam_t *)cp; 39707c478bd9Sstevel@tonic-gate 39717c478bd9Sstevel@tonic-gate /* 39727c478bd9Sstevel@tonic-gate * Fail the request if the new value does not lie within the 39737c478bd9Sstevel@tonic-gate * required bounds. 39747c478bd9Sstevel@tonic-gate */ 39757c478bd9Sstevel@tonic-gate if (ddi_strtol(value, NULL, 10, &new_value) != 0 || 39767c478bd9Sstevel@tonic-gate new_value < udppa->udp_param_min || 39777c478bd9Sstevel@tonic-gate new_value > udppa->udp_param_max) { 39787c478bd9Sstevel@tonic-gate return (EINVAL); 39797c478bd9Sstevel@tonic-gate } 39807c478bd9Sstevel@tonic-gate 39817c478bd9Sstevel@tonic-gate /* Set the new value */ 39827c478bd9Sstevel@tonic-gate udppa->udp_param_value = new_value; 39837c478bd9Sstevel@tonic-gate return (0); 39847c478bd9Sstevel@tonic-gate } 39857c478bd9Sstevel@tonic-gate 398645916cd2Sjpk /* 398745916cd2Sjpk * Copy hop-by-hop option from ipp->ipp_hopopts to the buffer provided (with 398845916cd2Sjpk * T_opthdr) and return the number of bytes copied. 'dbuf' may be NULL to 398945916cd2Sjpk * just count the length needed for allocation. If 'dbuf' is non-NULL, 399045916cd2Sjpk * then it's assumed to be allocated to be large enough. 399145916cd2Sjpk * 399245916cd2Sjpk * Returns zero if trimming of the security option causes all options to go 399345916cd2Sjpk * away. 399445916cd2Sjpk */ 399545916cd2Sjpk static size_t 399645916cd2Sjpk copy_hop_opts(const ip6_pkt_t *ipp, uchar_t *dbuf) 399745916cd2Sjpk { 399845916cd2Sjpk struct T_opthdr *toh; 399945916cd2Sjpk size_t hol = ipp->ipp_hopoptslen; 400045916cd2Sjpk ip6_hbh_t *dstopt = NULL; 400145916cd2Sjpk const ip6_hbh_t *srcopt = ipp->ipp_hopopts; 400245916cd2Sjpk size_t tlen, olen, plen; 400345916cd2Sjpk boolean_t deleting; 400445916cd2Sjpk const struct ip6_opt *sopt, *lastpad; 400545916cd2Sjpk struct ip6_opt *dopt; 400645916cd2Sjpk 400745916cd2Sjpk if ((toh = (struct T_opthdr *)dbuf) != NULL) { 400845916cd2Sjpk toh->level = IPPROTO_IPV6; 400945916cd2Sjpk toh->name = IPV6_HOPOPTS; 401045916cd2Sjpk toh->status = 0; 401145916cd2Sjpk dstopt = (ip6_hbh_t *)(toh + 1); 401245916cd2Sjpk } 401345916cd2Sjpk 401445916cd2Sjpk /* 401545916cd2Sjpk * If labeling is enabled, then skip the label option 401645916cd2Sjpk * but get other options if there are any. 401745916cd2Sjpk */ 401845916cd2Sjpk if (is_system_labeled()) { 401945916cd2Sjpk dopt = NULL; 402045916cd2Sjpk if (dstopt != NULL) { 402145916cd2Sjpk /* will fill in ip6h_len later */ 402245916cd2Sjpk dstopt->ip6h_nxt = srcopt->ip6h_nxt; 402345916cd2Sjpk dopt = (struct ip6_opt *)(dstopt + 1); 402445916cd2Sjpk } 402545916cd2Sjpk sopt = (const struct ip6_opt *)(srcopt + 1); 402645916cd2Sjpk hol -= sizeof (*srcopt); 402745916cd2Sjpk tlen = sizeof (*dstopt); 402845916cd2Sjpk lastpad = NULL; 402945916cd2Sjpk deleting = B_FALSE; 403045916cd2Sjpk /* 403145916cd2Sjpk * This loop finds the first (lastpad pointer) of any number of 403245916cd2Sjpk * pads that preceeds the security option, then treats the 403345916cd2Sjpk * security option as though it were a pad, and then finds the 403445916cd2Sjpk * next non-pad option (or end of list). 403545916cd2Sjpk * 403645916cd2Sjpk * It then treats the entire block as one big pad. To preserve 403745916cd2Sjpk * alignment of any options that follow, or just the end of the 403845916cd2Sjpk * list, it computes a minimal new padding size that keeps the 403945916cd2Sjpk * same alignment for the next option. 404045916cd2Sjpk * 404145916cd2Sjpk * If it encounters just a sequence of pads with no security 404245916cd2Sjpk * option, those are copied as-is rather than collapsed. 404345916cd2Sjpk * 404445916cd2Sjpk * Note that to handle the end of list case, the code makes one 404545916cd2Sjpk * loop with 'hol' set to zero. 404645916cd2Sjpk */ 404745916cd2Sjpk for (;;) { 404845916cd2Sjpk if (hol > 0) { 404945916cd2Sjpk if (sopt->ip6o_type == IP6OPT_PAD1) { 405045916cd2Sjpk if (lastpad == NULL) 405145916cd2Sjpk lastpad = sopt; 405245916cd2Sjpk sopt = (const struct ip6_opt *) 405345916cd2Sjpk &sopt->ip6o_len; 405445916cd2Sjpk hol--; 405545916cd2Sjpk continue; 405645916cd2Sjpk } 405745916cd2Sjpk olen = sopt->ip6o_len + sizeof (*sopt); 405845916cd2Sjpk if (olen > hol) 405945916cd2Sjpk olen = hol; 406045916cd2Sjpk if (sopt->ip6o_type == IP6OPT_PADN || 406145916cd2Sjpk sopt->ip6o_type == ip6opt_ls) { 406245916cd2Sjpk if (sopt->ip6o_type == ip6opt_ls) 406345916cd2Sjpk deleting = B_TRUE; 406445916cd2Sjpk if (lastpad == NULL) 406545916cd2Sjpk lastpad = sopt; 406645916cd2Sjpk sopt = (const struct ip6_opt *) 406745916cd2Sjpk ((const char *)sopt + olen); 406845916cd2Sjpk hol -= olen; 406945916cd2Sjpk continue; 407045916cd2Sjpk } 407145916cd2Sjpk } else { 407245916cd2Sjpk /* if nothing was copied at all, then delete */ 407345916cd2Sjpk if (tlen == sizeof (*dstopt)) 407445916cd2Sjpk return (0); 407545916cd2Sjpk /* last pass; pick up any trailing padding */ 407645916cd2Sjpk olen = 0; 407745916cd2Sjpk } 407845916cd2Sjpk if (deleting) { 407945916cd2Sjpk /* 408045916cd2Sjpk * compute aligning effect of deleted material 408145916cd2Sjpk * to reproduce with pad. 408245916cd2Sjpk */ 408345916cd2Sjpk plen = ((const char *)sopt - 408445916cd2Sjpk (const char *)lastpad) & 7; 408545916cd2Sjpk tlen += plen; 408645916cd2Sjpk if (dopt != NULL) { 408745916cd2Sjpk if (plen == 1) { 408845916cd2Sjpk dopt->ip6o_type = IP6OPT_PAD1; 408945916cd2Sjpk } else if (plen > 1) { 409045916cd2Sjpk plen -= sizeof (*dopt); 409145916cd2Sjpk dopt->ip6o_type = IP6OPT_PADN; 409245916cd2Sjpk dopt->ip6o_len = plen; 409345916cd2Sjpk if (plen > 0) 409445916cd2Sjpk bzero(dopt + 1, plen); 409545916cd2Sjpk } 409645916cd2Sjpk dopt = (struct ip6_opt *) 409745916cd2Sjpk ((char *)dopt + plen); 409845916cd2Sjpk } 409945916cd2Sjpk deleting = B_FALSE; 410045916cd2Sjpk lastpad = NULL; 410145916cd2Sjpk } 410245916cd2Sjpk /* if there's uncopied padding, then copy that now */ 410345916cd2Sjpk if (lastpad != NULL) { 410445916cd2Sjpk olen += (const char *)sopt - 410545916cd2Sjpk (const char *)lastpad; 410645916cd2Sjpk sopt = lastpad; 410745916cd2Sjpk lastpad = NULL; 410845916cd2Sjpk } 410945916cd2Sjpk if (dopt != NULL && olen > 0) { 411045916cd2Sjpk bcopy(sopt, dopt, olen); 411145916cd2Sjpk dopt = (struct ip6_opt *)((char *)dopt + olen); 411245916cd2Sjpk } 411345916cd2Sjpk if (hol == 0) 411445916cd2Sjpk break; 411545916cd2Sjpk tlen += olen; 411645916cd2Sjpk sopt = (const struct ip6_opt *) 411745916cd2Sjpk ((const char *)sopt + olen); 411845916cd2Sjpk hol -= olen; 411945916cd2Sjpk } 412045916cd2Sjpk /* go back and patch up the length value, rounded upward */ 412145916cd2Sjpk if (dstopt != NULL) 412245916cd2Sjpk dstopt->ip6h_len = (tlen - 1) >> 3; 412345916cd2Sjpk } else { 412445916cd2Sjpk tlen = hol; 412545916cd2Sjpk if (dstopt != NULL) 412645916cd2Sjpk bcopy(srcopt, dstopt, hol); 412745916cd2Sjpk } 412845916cd2Sjpk 412945916cd2Sjpk tlen += sizeof (*toh); 413045916cd2Sjpk if (toh != NULL) 413145916cd2Sjpk toh->len = tlen; 413245916cd2Sjpk 413345916cd2Sjpk return (tlen); 413445916cd2Sjpk } 413545916cd2Sjpk 4136fc80c0dfSnordmark /* 4137fc80c0dfSnordmark * Update udp_rcv_opt_len from the packet. 4138fc80c0dfSnordmark * Called when options received, and when no options received but 4139fc80c0dfSnordmark * udp_ip_recv_opt_len has previously recorded options. 4140fc80c0dfSnordmark */ 41417c478bd9Sstevel@tonic-gate static void 4142fc80c0dfSnordmark udp_save_ip_rcv_opt(udp_t *udp, void *opt, int opt_len) 41437c478bd9Sstevel@tonic-gate { 4144fc80c0dfSnordmark /* Save the options if any */ 4145fc80c0dfSnordmark if (opt_len > 0) { 4146fc80c0dfSnordmark if (opt_len > udp->udp_ip_rcv_options_len) { 4147fc80c0dfSnordmark /* Need to allocate larger buffer */ 4148fc80c0dfSnordmark if (udp->udp_ip_rcv_options_len != 0) 4149fc80c0dfSnordmark mi_free((char *)udp->udp_ip_rcv_options); 4150fc80c0dfSnordmark udp->udp_ip_rcv_options_len = 0; 4151fc80c0dfSnordmark udp->udp_ip_rcv_options = 4152fc80c0dfSnordmark (uchar_t *)mi_alloc(opt_len, BPRI_HI); 4153fc80c0dfSnordmark if (udp->udp_ip_rcv_options != NULL) 4154fc80c0dfSnordmark udp->udp_ip_rcv_options_len = opt_len; 4155fc80c0dfSnordmark } 4156fc80c0dfSnordmark if (udp->udp_ip_rcv_options_len != 0) { 4157fc80c0dfSnordmark bcopy(opt, udp->udp_ip_rcv_options, opt_len); 4158fc80c0dfSnordmark /* Adjust length if we are resusing the space */ 4159fc80c0dfSnordmark udp->udp_ip_rcv_options_len = opt_len; 4160fc80c0dfSnordmark } 4161fc80c0dfSnordmark } else if (udp->udp_ip_rcv_options_len != 0) { 4162fc80c0dfSnordmark /* Clear out previously recorded options */ 4163fc80c0dfSnordmark mi_free((char *)udp->udp_ip_rcv_options); 4164fc80c0dfSnordmark udp->udp_ip_rcv_options = NULL; 4165fc80c0dfSnordmark udp->udp_ip_rcv_options_len = 0; 4166fc80c0dfSnordmark } 4167fc80c0dfSnordmark } 4168fc80c0dfSnordmark 4169fc80c0dfSnordmark /* ARGSUSED2 */ 4170fc80c0dfSnordmark static void 4171fc80c0dfSnordmark udp_input(void *arg1, mblk_t *mp, void *arg2) 4172fc80c0dfSnordmark { 4173fc80c0dfSnordmark conn_t *connp = (conn_t *)arg1; 41747c478bd9Sstevel@tonic-gate struct T_unitdata_ind *tudi; 4175ff550d0eSmasputra uchar_t *rptr; /* Pointer to IP header */ 4176ff550d0eSmasputra int hdr_length; /* Length of IP+UDP headers */ 4177fc80c0dfSnordmark int opt_len; 41787c478bd9Sstevel@tonic-gate int udi_size; /* Size of T_unitdata_ind */ 4179ff550d0eSmasputra int mp_len; 41807c478bd9Sstevel@tonic-gate udp_t *udp; 41817c478bd9Sstevel@tonic-gate udpha_t *udpha; 41827c478bd9Sstevel@tonic-gate int ipversion; 41837c478bd9Sstevel@tonic-gate ip6_pkt_t ipp; 41847c478bd9Sstevel@tonic-gate ip6_t *ip6h; 41857c478bd9Sstevel@tonic-gate ip6i_t *ip6i; 41867c478bd9Sstevel@tonic-gate mblk_t *mp1; 41877c478bd9Sstevel@tonic-gate mblk_t *options_mp = NULL; 418819a30e1aSrshoaib ip_pktinfo_t *pinfo = NULL; 41897c478bd9Sstevel@tonic-gate cred_t *cr = NULL; 41907c478bd9Sstevel@tonic-gate pid_t cpid; 4191fc80c0dfSnordmark uint32_t udp_ip_rcv_options_len; 4192fc80c0dfSnordmark udp_bits_t udp_bits; 419345916cd2Sjpk cred_t *rcr = connp->conn_cred; 4194f4b3ec61Sdh udp_stack_t *us; 41957c478bd9Sstevel@tonic-gate 4196fc80c0dfSnordmark ASSERT(connp->conn_flags & IPCL_UDPCONN); 41977c478bd9Sstevel@tonic-gate 4198ff550d0eSmasputra udp = connp->conn_udp; 4199f4b3ec61Sdh us = udp->udp_us; 42007c478bd9Sstevel@tonic-gate rptr = mp->b_rptr; 4201ff550d0eSmasputra ASSERT(DB_TYPE(mp) == M_DATA || DB_TYPE(mp) == M_CTL); 4202ff550d0eSmasputra ASSERT(OK_32PTR(rptr)); 42037c478bd9Sstevel@tonic-gate 4204ff550d0eSmasputra /* 4205ff550d0eSmasputra * IP should have prepended the options data in an M_CTL 4206ff550d0eSmasputra * Check M_CTL "type" to make sure are not here bcos of 4207ff550d0eSmasputra * a valid ICMP message 4208ff550d0eSmasputra */ 4209ff550d0eSmasputra if (DB_TYPE(mp) == M_CTL) { 421019a30e1aSrshoaib if (MBLKL(mp) == sizeof (ip_pktinfo_t) && 421119a30e1aSrshoaib ((ip_pktinfo_t *)mp->b_rptr)->ip_pkt_ulp_type == 4212ff550d0eSmasputra IN_PKTINFO) { 42137c478bd9Sstevel@tonic-gate /* 421419a30e1aSrshoaib * IP_RECVIF or IP_RECVSLLA or IPF_RECVADDR information 4215fc80c0dfSnordmark * has been prepended to the packet by IP. We need to 4216ff550d0eSmasputra * extract the mblk and adjust the rptr 42177c478bd9Sstevel@tonic-gate */ 421819a30e1aSrshoaib pinfo = (ip_pktinfo_t *)mp->b_rptr; 4219ff550d0eSmasputra options_mp = mp; 4220ff550d0eSmasputra mp = mp->b_cont; 4221ff550d0eSmasputra rptr = mp->b_rptr; 4222f4b3ec61Sdh UDP_STAT(us, udp_in_pktinfo); 4223ff550d0eSmasputra } else { 4224ff550d0eSmasputra /* 4225ff550d0eSmasputra * ICMP messages. 4226ff550d0eSmasputra */ 4227fc80c0dfSnordmark udp_icmp_error(connp->conn_rq, mp); 4228ff550d0eSmasputra return; 42297c478bd9Sstevel@tonic-gate } 42307c478bd9Sstevel@tonic-gate } 42317c478bd9Sstevel@tonic-gate 4232ff550d0eSmasputra mp_len = msgdsize(mp); 42337c478bd9Sstevel@tonic-gate /* 42347c478bd9Sstevel@tonic-gate * This is the inbound data path. 42357c478bd9Sstevel@tonic-gate * First, we check to make sure the IP version number is correct, 42367c478bd9Sstevel@tonic-gate * and then pull the IP and UDP headers into the first mblk. 42377c478bd9Sstevel@tonic-gate */ 42387c478bd9Sstevel@tonic-gate 42397c478bd9Sstevel@tonic-gate /* Initialize regardless if ipversion is IPv4 or IPv6 */ 42407c478bd9Sstevel@tonic-gate ipp.ipp_fields = 0; 42417c478bd9Sstevel@tonic-gate 42427c478bd9Sstevel@tonic-gate ipversion = IPH_HDR_VERSION(rptr); 4243fc80c0dfSnordmark 4244fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_READER); 4245fc80c0dfSnordmark udp_ip_rcv_options_len = udp->udp_ip_rcv_options_len; 4246fc80c0dfSnordmark udp_bits = udp->udp_bits; 4247fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 4248fc80c0dfSnordmark 42497c478bd9Sstevel@tonic-gate switch (ipversion) { 42507c478bd9Sstevel@tonic-gate case IPV4_VERSION: 4251ff550d0eSmasputra ASSERT(MBLKL(mp) >= sizeof (ipha_t)); 4252ff550d0eSmasputra ASSERT(((ipha_t *)rptr)->ipha_protocol == IPPROTO_UDP); 42537c478bd9Sstevel@tonic-gate hdr_length = IPH_HDR_LENGTH(rptr) + UDPH_SIZE; 4254fc80c0dfSnordmark opt_len = hdr_length - (IP_SIMPLE_HDR_LENGTH + UDPH_SIZE); 4255fc80c0dfSnordmark if ((opt_len > 0 || udp_ip_rcv_options_len > 0) && 4256fc80c0dfSnordmark udp->udp_family == AF_INET) { 42577c478bd9Sstevel@tonic-gate /* 4258fc80c0dfSnordmark * Record/update udp_ip_rcv_options with the lock 4259fc80c0dfSnordmark * held. Not needed for AF_INET6 sockets 42607c478bd9Sstevel@tonic-gate * since they don't support a getsockopt of IP_OPTIONS. 42617c478bd9Sstevel@tonic-gate */ 4262fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 4263fc80c0dfSnordmark udp_save_ip_rcv_opt(udp, rptr + IP_SIMPLE_HDR_LENGTH, 4264fc80c0dfSnordmark opt_len); 4265fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 42667c478bd9Sstevel@tonic-gate } 4267fc80c0dfSnordmark /* Handle IPV6_RECVPKTINFO even for IPv4 packet. */ 4268ff550d0eSmasputra if ((udp->udp_family == AF_INET6) && (pinfo != NULL) && 426919a30e1aSrshoaib udp->udp_ip_recvpktinfo) { 427019a30e1aSrshoaib if (pinfo->ip_pkt_flags & IPF_RECVIF) { 42717c478bd9Sstevel@tonic-gate ipp.ipp_fields |= IPPF_IFINDEX; 427219a30e1aSrshoaib ipp.ipp_ifindex = pinfo->ip_pkt_ifindex; 42737c478bd9Sstevel@tonic-gate } 42747c478bd9Sstevel@tonic-gate } 42757c478bd9Sstevel@tonic-gate break; 42767c478bd9Sstevel@tonic-gate case IPV6_VERSION: 42777c478bd9Sstevel@tonic-gate /* 42787c478bd9Sstevel@tonic-gate * IPv6 packets can only be received by applications 42797c478bd9Sstevel@tonic-gate * that are prepared to receive IPv6 addresses. 42807c478bd9Sstevel@tonic-gate * The IP fanout must ensure this. 42817c478bd9Sstevel@tonic-gate */ 42827c478bd9Sstevel@tonic-gate ASSERT(udp->udp_family == AF_INET6); 42837c478bd9Sstevel@tonic-gate 42847c478bd9Sstevel@tonic-gate ip6h = (ip6_t *)rptr; 4285ff550d0eSmasputra ASSERT((uchar_t *)&ip6h[1] <= mp->b_wptr); 42867c478bd9Sstevel@tonic-gate 42877c478bd9Sstevel@tonic-gate if (ip6h->ip6_nxt != IPPROTO_UDP) { 42887c478bd9Sstevel@tonic-gate uint8_t nexthdrp; 42897c478bd9Sstevel@tonic-gate /* Look for ifindex information */ 42907c478bd9Sstevel@tonic-gate if (ip6h->ip6_nxt == IPPROTO_RAW) { 42917c478bd9Sstevel@tonic-gate ip6i = (ip6i_t *)ip6h; 42927c478bd9Sstevel@tonic-gate if ((uchar_t *)&ip6i[1] > mp->b_wptr) 42937c478bd9Sstevel@tonic-gate goto tossit; 42947c478bd9Sstevel@tonic-gate 42957c478bd9Sstevel@tonic-gate if (ip6i->ip6i_flags & IP6I_IFINDEX) { 42967c478bd9Sstevel@tonic-gate ASSERT(ip6i->ip6i_ifindex != 0); 42977c478bd9Sstevel@tonic-gate ipp.ipp_fields |= IPPF_IFINDEX; 42987c478bd9Sstevel@tonic-gate ipp.ipp_ifindex = ip6i->ip6i_ifindex; 42997c478bd9Sstevel@tonic-gate } 43007c478bd9Sstevel@tonic-gate rptr = (uchar_t *)&ip6i[1]; 43017c478bd9Sstevel@tonic-gate mp->b_rptr = rptr; 43027c478bd9Sstevel@tonic-gate if (rptr == mp->b_wptr) { 43037c478bd9Sstevel@tonic-gate mp1 = mp->b_cont; 43047c478bd9Sstevel@tonic-gate freeb(mp); 43057c478bd9Sstevel@tonic-gate mp = mp1; 43067c478bd9Sstevel@tonic-gate rptr = mp->b_rptr; 43077c478bd9Sstevel@tonic-gate } 43087c478bd9Sstevel@tonic-gate if (MBLKL(mp) < (IPV6_HDR_LEN + UDPH_SIZE)) 43097c478bd9Sstevel@tonic-gate goto tossit; 43107c478bd9Sstevel@tonic-gate ip6h = (ip6_t *)rptr; 4311ff550d0eSmasputra mp_len = msgdsize(mp); 43127c478bd9Sstevel@tonic-gate } 43137c478bd9Sstevel@tonic-gate /* 43147c478bd9Sstevel@tonic-gate * Find any potentially interesting extension headers 43157c478bd9Sstevel@tonic-gate * as well as the length of the IPv6 + extension 43167c478bd9Sstevel@tonic-gate * headers. 43177c478bd9Sstevel@tonic-gate */ 43187c478bd9Sstevel@tonic-gate hdr_length = ip_find_hdr_v6(mp, ip6h, &ipp, &nexthdrp) + 43197c478bd9Sstevel@tonic-gate UDPH_SIZE; 4320ff550d0eSmasputra ASSERT(nexthdrp == IPPROTO_UDP); 43217c478bd9Sstevel@tonic-gate } else { 43227c478bd9Sstevel@tonic-gate hdr_length = IPV6_HDR_LEN + UDPH_SIZE; 43237c478bd9Sstevel@tonic-gate ip6i = NULL; 43247c478bd9Sstevel@tonic-gate } 43257c478bd9Sstevel@tonic-gate break; 43267c478bd9Sstevel@tonic-gate default: 4327ff550d0eSmasputra ASSERT(0); 43287c478bd9Sstevel@tonic-gate } 43297c478bd9Sstevel@tonic-gate 43307c478bd9Sstevel@tonic-gate /* 43317c478bd9Sstevel@tonic-gate * IP inspected the UDP header thus all of it must be in the mblk. 43327c478bd9Sstevel@tonic-gate * UDP length check is performed for IPv6 packets and IPv4 packets 4333fc80c0dfSnordmark * to check if the size of the packet as specified 43347c478bd9Sstevel@tonic-gate * by the header is the same as the physical size of the packet. 4335fc80c0dfSnordmark * FIXME? Didn't IP already check this? 43367c478bd9Sstevel@tonic-gate */ 43377c478bd9Sstevel@tonic-gate udpha = (udpha_t *)(rptr + (hdr_length - UDPH_SIZE)); 43387c478bd9Sstevel@tonic-gate if ((MBLKL(mp) < hdr_length) || 4339ff550d0eSmasputra (mp_len != (ntohs(udpha->uha_length) + hdr_length - UDPH_SIZE))) { 43407c478bd9Sstevel@tonic-gate goto tossit; 43417c478bd9Sstevel@tonic-gate } 43427c478bd9Sstevel@tonic-gate 4343fc80c0dfSnordmark 4344fc80c0dfSnordmark /* Walk past the headers unless IP_RECVHDR was set. */ 4345fc80c0dfSnordmark if (!udp_bits.udpb_rcvhdr) { 43467c478bd9Sstevel@tonic-gate mp->b_rptr = rptr + hdr_length; 4347ff550d0eSmasputra mp_len -= hdr_length; 4348ff550d0eSmasputra } 43497c478bd9Sstevel@tonic-gate 43507c478bd9Sstevel@tonic-gate /* 43517c478bd9Sstevel@tonic-gate * This is the inbound data path. Packets are passed upstream as 43527c478bd9Sstevel@tonic-gate * T_UNITDATA_IND messages with full IP headers still attached. 43537c478bd9Sstevel@tonic-gate */ 43547c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) { 43557c478bd9Sstevel@tonic-gate sin_t *sin; 43567c478bd9Sstevel@tonic-gate 43577c478bd9Sstevel@tonic-gate ASSERT(IPH_HDR_VERSION((ipha_t *)rptr) == IPV4_VERSION); 43587c478bd9Sstevel@tonic-gate 43597c478bd9Sstevel@tonic-gate /* 4360fc80c0dfSnordmark * Normally only send up the source address. 43617c478bd9Sstevel@tonic-gate * If IP_RECVDSTADDR is set we include the destination IP 43627c478bd9Sstevel@tonic-gate * address as an option. With IP_RECVOPTS we include all 4363fc80c0dfSnordmark * the IP options. 43647c478bd9Sstevel@tonic-gate */ 43657c478bd9Sstevel@tonic-gate udi_size = sizeof (struct T_unitdata_ind) + sizeof (sin_t); 4366fc80c0dfSnordmark if (udp_bits.udpb_recvdstaddr) { 43677c478bd9Sstevel@tonic-gate udi_size += sizeof (struct T_opthdr) + 43687c478bd9Sstevel@tonic-gate sizeof (struct in_addr); 4369f4b3ec61Sdh UDP_STAT(us, udp_in_recvdstaddr); 43707c478bd9Sstevel@tonic-gate } 43717c478bd9Sstevel@tonic-gate 4372fc80c0dfSnordmark if (udp_bits.udpb_ip_recvpktinfo && (pinfo != NULL) && 437319a30e1aSrshoaib (pinfo->ip_pkt_flags & IPF_RECVADDR)) { 437419a30e1aSrshoaib udi_size += sizeof (struct T_opthdr) + 437519a30e1aSrshoaib sizeof (struct in_pktinfo); 4376fc80c0dfSnordmark UDP_STAT(us, udp_ip_rcvpktinfo); 4377fc80c0dfSnordmark } 4378fc80c0dfSnordmark 4379fc80c0dfSnordmark if ((udp_bits.udpb_recvopts) && opt_len > 0) { 4380fc80c0dfSnordmark udi_size += sizeof (struct T_opthdr) + opt_len; 4381fc80c0dfSnordmark UDP_STAT(us, udp_in_recvopts); 438219a30e1aSrshoaib } 438319a30e1aSrshoaib 43847c478bd9Sstevel@tonic-gate /* 43857c478bd9Sstevel@tonic-gate * If the IP_RECVSLLA or the IP_RECVIF is set then allocate 43867c478bd9Sstevel@tonic-gate * space accordingly 43877c478bd9Sstevel@tonic-gate */ 4388fc80c0dfSnordmark if ((udp_bits.udpb_recvif) && (pinfo != NULL) && 438919a30e1aSrshoaib (pinfo->ip_pkt_flags & IPF_RECVIF)) { 4390ff550d0eSmasputra udi_size += sizeof (struct T_opthdr) + sizeof (uint_t); 4391f4b3ec61Sdh UDP_STAT(us, udp_in_recvif); 43927c478bd9Sstevel@tonic-gate } 43937c478bd9Sstevel@tonic-gate 4394fc80c0dfSnordmark if ((udp_bits.udpb_recvslla) && (pinfo != NULL) && 439519a30e1aSrshoaib (pinfo->ip_pkt_flags & IPF_RECVSLLA)) { 43967c478bd9Sstevel@tonic-gate udi_size += sizeof (struct T_opthdr) + 4397ff550d0eSmasputra sizeof (struct sockaddr_dl); 4398f4b3ec61Sdh UDP_STAT(us, udp_in_recvslla); 43997c478bd9Sstevel@tonic-gate } 44007c478bd9Sstevel@tonic-gate 4401fc80c0dfSnordmark if ((udp_bits.udpb_recvucred) && 4402fc80c0dfSnordmark (cr = DB_CRED(mp)) != NULL) { 44037c478bd9Sstevel@tonic-gate udi_size += sizeof (struct T_opthdr) + ucredsize; 44047c478bd9Sstevel@tonic-gate cpid = DB_CPID(mp); 4405f4b3ec61Sdh UDP_STAT(us, udp_in_recvucred); 44067c478bd9Sstevel@tonic-gate } 4407d6287788Srshoaib 4408e4f35dbaSgt /* 4409e4f35dbaSgt * If SO_TIMESTAMP is set allocate the appropriate sized 4410e4f35dbaSgt * buffer. Since gethrestime() expects a pointer aligned 4411e4f35dbaSgt * argument, we allocate space necessary for extra 4412e4f35dbaSgt * alignment (even though it might not be used). 4413e4f35dbaSgt */ 4414fc80c0dfSnordmark if (udp_bits.udpb_timestamp) { 4415e4f35dbaSgt udi_size += sizeof (struct T_opthdr) + 4416e4f35dbaSgt sizeof (timestruc_t) + _POINTER_ALIGNMENT; 4417f4b3ec61Sdh UDP_STAT(us, udp_in_timestamp); 4418e4f35dbaSgt } 4419d6287788Srshoaib 4420d6287788Srshoaib /* 4421d6287788Srshoaib * If IP_RECVTTL is set allocate the appropriate sized buffer 4422d6287788Srshoaib */ 4423fc80c0dfSnordmark if (udp_bits.udpb_recvttl) { 4424d6287788Srshoaib udi_size += sizeof (struct T_opthdr) + sizeof (uint8_t); 4425f4b3ec61Sdh UDP_STAT(us, udp_in_recvttl); 4426d6287788Srshoaib } 44277c478bd9Sstevel@tonic-gate 44287c478bd9Sstevel@tonic-gate /* Allocate a message block for the T_UNITDATA_IND structure. */ 44297c478bd9Sstevel@tonic-gate mp1 = allocb(udi_size, BPRI_MED); 44307c478bd9Sstevel@tonic-gate if (mp1 == NULL) { 44317c478bd9Sstevel@tonic-gate freemsg(mp); 44327c478bd9Sstevel@tonic-gate if (options_mp != NULL) 44337c478bd9Sstevel@tonic-gate freeb(options_mp); 4434fc80c0dfSnordmark BUMP_MIB(&us->us_udp_mib, udpInErrors); 44357c478bd9Sstevel@tonic-gate return; 44367c478bd9Sstevel@tonic-gate } 44377c478bd9Sstevel@tonic-gate mp1->b_cont = mp; 44387c478bd9Sstevel@tonic-gate mp = mp1; 44397c478bd9Sstevel@tonic-gate mp->b_datap->db_type = M_PROTO; 44407c478bd9Sstevel@tonic-gate tudi = (struct T_unitdata_ind *)mp->b_rptr; 44417c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)tudi + udi_size; 44427c478bd9Sstevel@tonic-gate tudi->PRIM_type = T_UNITDATA_IND; 44437c478bd9Sstevel@tonic-gate tudi->SRC_length = sizeof (sin_t); 44447c478bd9Sstevel@tonic-gate tudi->SRC_offset = sizeof (struct T_unitdata_ind); 44457c478bd9Sstevel@tonic-gate tudi->OPT_offset = sizeof (struct T_unitdata_ind) + 44467c478bd9Sstevel@tonic-gate sizeof (sin_t); 44477c478bd9Sstevel@tonic-gate udi_size -= (sizeof (struct T_unitdata_ind) + sizeof (sin_t)); 44487c478bd9Sstevel@tonic-gate tudi->OPT_length = udi_size; 44497c478bd9Sstevel@tonic-gate sin = (sin_t *)&tudi[1]; 44507c478bd9Sstevel@tonic-gate sin->sin_addr.s_addr = ((ipha_t *)rptr)->ipha_src; 44517c478bd9Sstevel@tonic-gate sin->sin_port = udpha->uha_src_port; 44527c478bd9Sstevel@tonic-gate sin->sin_family = udp->udp_family; 44537c478bd9Sstevel@tonic-gate *(uint32_t *)&sin->sin_zero[0] = 0; 44547c478bd9Sstevel@tonic-gate *(uint32_t *)&sin->sin_zero[4] = 0; 44557c478bd9Sstevel@tonic-gate 44567c478bd9Sstevel@tonic-gate /* 44577c478bd9Sstevel@tonic-gate * Add options if IP_RECVDSTADDR, IP_RECVIF, IP_RECVSLLA or 44587c478bd9Sstevel@tonic-gate * IP_RECVTTL has been set. 44597c478bd9Sstevel@tonic-gate */ 44607c478bd9Sstevel@tonic-gate if (udi_size != 0) { 44617c478bd9Sstevel@tonic-gate /* 44627c478bd9Sstevel@tonic-gate * Copy in destination address before options to avoid 44637c478bd9Sstevel@tonic-gate * any padding issues. 44647c478bd9Sstevel@tonic-gate */ 44657c478bd9Sstevel@tonic-gate char *dstopt; 44667c478bd9Sstevel@tonic-gate 44677c478bd9Sstevel@tonic-gate dstopt = (char *)&sin[1]; 4468fc80c0dfSnordmark if (udp_bits.udpb_recvdstaddr) { 44697c478bd9Sstevel@tonic-gate struct T_opthdr *toh; 44707c478bd9Sstevel@tonic-gate ipaddr_t *dstptr; 44717c478bd9Sstevel@tonic-gate 44727c478bd9Sstevel@tonic-gate toh = (struct T_opthdr *)dstopt; 44737c478bd9Sstevel@tonic-gate toh->level = IPPROTO_IP; 44747c478bd9Sstevel@tonic-gate toh->name = IP_RECVDSTADDR; 44757c478bd9Sstevel@tonic-gate toh->len = sizeof (struct T_opthdr) + 44767c478bd9Sstevel@tonic-gate sizeof (ipaddr_t); 44777c478bd9Sstevel@tonic-gate toh->status = 0; 44787c478bd9Sstevel@tonic-gate dstopt += sizeof (struct T_opthdr); 44797c478bd9Sstevel@tonic-gate dstptr = (ipaddr_t *)dstopt; 44807c478bd9Sstevel@tonic-gate *dstptr = ((ipha_t *)rptr)->ipha_dst; 4481fc80c0dfSnordmark dstopt += sizeof (ipaddr_t); 4482fc80c0dfSnordmark udi_size -= toh->len; 4483fc80c0dfSnordmark } 4484fc80c0dfSnordmark 4485fc80c0dfSnordmark if (udp_bits.udpb_recvopts && opt_len > 0) { 4486fc80c0dfSnordmark struct T_opthdr *toh; 4487fc80c0dfSnordmark 4488fc80c0dfSnordmark toh = (struct T_opthdr *)dstopt; 4489fc80c0dfSnordmark toh->level = IPPROTO_IP; 4490fc80c0dfSnordmark toh->name = IP_RECVOPTS; 4491fc80c0dfSnordmark toh->len = sizeof (struct T_opthdr) + opt_len; 4492fc80c0dfSnordmark toh->status = 0; 4493fc80c0dfSnordmark dstopt += sizeof (struct T_opthdr); 4494fc80c0dfSnordmark bcopy(rptr + IP_SIMPLE_HDR_LENGTH, dstopt, 4495fc80c0dfSnordmark opt_len); 4496fc80c0dfSnordmark dstopt += opt_len; 44977c478bd9Sstevel@tonic-gate udi_size -= toh->len; 44987c478bd9Sstevel@tonic-gate } 44997c478bd9Sstevel@tonic-gate 4500fc80c0dfSnordmark if ((udp_bits.udpb_ip_recvpktinfo) && (pinfo != NULL) && 450119a30e1aSrshoaib (pinfo->ip_pkt_flags & IPF_RECVADDR)) { 450219a30e1aSrshoaib struct T_opthdr *toh; 450319a30e1aSrshoaib struct in_pktinfo *pktinfop; 450419a30e1aSrshoaib 450519a30e1aSrshoaib toh = (struct T_opthdr *)dstopt; 450619a30e1aSrshoaib toh->level = IPPROTO_IP; 450719a30e1aSrshoaib toh->name = IP_PKTINFO; 450819a30e1aSrshoaib toh->len = sizeof (struct T_opthdr) + 450919a30e1aSrshoaib sizeof (*pktinfop); 451019a30e1aSrshoaib toh->status = 0; 451119a30e1aSrshoaib dstopt += sizeof (struct T_opthdr); 451219a30e1aSrshoaib pktinfop = (struct in_pktinfo *)dstopt; 451319a30e1aSrshoaib pktinfop->ipi_ifindex = pinfo->ip_pkt_ifindex; 451419a30e1aSrshoaib pktinfop->ipi_spec_dst = 451519a30e1aSrshoaib pinfo->ip_pkt_match_addr; 451619a30e1aSrshoaib pktinfop->ipi_addr.s_addr = 451719a30e1aSrshoaib ((ipha_t *)rptr)->ipha_dst; 451819a30e1aSrshoaib 451919a30e1aSrshoaib dstopt += sizeof (struct in_pktinfo); 452019a30e1aSrshoaib udi_size -= toh->len; 452119a30e1aSrshoaib } 452219a30e1aSrshoaib 4523fc80c0dfSnordmark if ((udp_bits.udpb_recvslla) && (pinfo != NULL) && 452419a30e1aSrshoaib (pinfo->ip_pkt_flags & IPF_RECVSLLA)) { 45257c478bd9Sstevel@tonic-gate 45267c478bd9Sstevel@tonic-gate struct T_opthdr *toh; 45277c478bd9Sstevel@tonic-gate struct sockaddr_dl *dstptr; 45287c478bd9Sstevel@tonic-gate 45297c478bd9Sstevel@tonic-gate toh = (struct T_opthdr *)dstopt; 45307c478bd9Sstevel@tonic-gate toh->level = IPPROTO_IP; 45317c478bd9Sstevel@tonic-gate toh->name = IP_RECVSLLA; 45327c478bd9Sstevel@tonic-gate toh->len = sizeof (struct T_opthdr) + 4533437220cdSdanmcd sizeof (struct sockaddr_dl); 45347c478bd9Sstevel@tonic-gate toh->status = 0; 45357c478bd9Sstevel@tonic-gate dstopt += sizeof (struct T_opthdr); 45367c478bd9Sstevel@tonic-gate dstptr = (struct sockaddr_dl *)dstopt; 453719a30e1aSrshoaib bcopy(&pinfo->ip_pkt_slla, dstptr, 45387c478bd9Sstevel@tonic-gate sizeof (struct sockaddr_dl)); 4539fc80c0dfSnordmark dstopt += sizeof (struct sockaddr_dl); 45407c478bd9Sstevel@tonic-gate udi_size -= toh->len; 45417c478bd9Sstevel@tonic-gate } 45427c478bd9Sstevel@tonic-gate 4543fc80c0dfSnordmark if ((udp_bits.udpb_recvif) && (pinfo != NULL) && 454419a30e1aSrshoaib (pinfo->ip_pkt_flags & IPF_RECVIF)) { 45457c478bd9Sstevel@tonic-gate 45467c478bd9Sstevel@tonic-gate struct T_opthdr *toh; 45477c478bd9Sstevel@tonic-gate uint_t *dstptr; 45487c478bd9Sstevel@tonic-gate 45497c478bd9Sstevel@tonic-gate toh = (struct T_opthdr *)dstopt; 45507c478bd9Sstevel@tonic-gate toh->level = IPPROTO_IP; 45517c478bd9Sstevel@tonic-gate toh->name = IP_RECVIF; 45527c478bd9Sstevel@tonic-gate toh->len = sizeof (struct T_opthdr) + 4553437220cdSdanmcd sizeof (uint_t); 45547c478bd9Sstevel@tonic-gate toh->status = 0; 45557c478bd9Sstevel@tonic-gate dstopt += sizeof (struct T_opthdr); 45567c478bd9Sstevel@tonic-gate dstptr = (uint_t *)dstopt; 455719a30e1aSrshoaib *dstptr = pinfo->ip_pkt_ifindex; 4558fc80c0dfSnordmark dstopt += sizeof (uint_t); 45597c478bd9Sstevel@tonic-gate udi_size -= toh->len; 45607c478bd9Sstevel@tonic-gate } 45617c478bd9Sstevel@tonic-gate 45627c478bd9Sstevel@tonic-gate if (cr != NULL) { 45637c478bd9Sstevel@tonic-gate struct T_opthdr *toh; 45647c478bd9Sstevel@tonic-gate 45657c478bd9Sstevel@tonic-gate toh = (struct T_opthdr *)dstopt; 45667c478bd9Sstevel@tonic-gate toh->level = SOL_SOCKET; 45677c478bd9Sstevel@tonic-gate toh->name = SCM_UCRED; 45687c478bd9Sstevel@tonic-gate toh->len = sizeof (struct T_opthdr) + ucredsize; 45697c478bd9Sstevel@tonic-gate toh->status = 0; 4570fc80c0dfSnordmark dstopt += sizeof (struct T_opthdr); 4571fc80c0dfSnordmark (void) cred2ucred(cr, cpid, dstopt, rcr); 4572fc80c0dfSnordmark dstopt += ucredsize; 45737c478bd9Sstevel@tonic-gate udi_size -= toh->len; 45747c478bd9Sstevel@tonic-gate } 45757c478bd9Sstevel@tonic-gate 4576fc80c0dfSnordmark if (udp_bits.udpb_timestamp) { 4577e4f35dbaSgt struct T_opthdr *toh; 4578e4f35dbaSgt 4579e4f35dbaSgt toh = (struct T_opthdr *)dstopt; 4580e4f35dbaSgt toh->level = SOL_SOCKET; 4581e4f35dbaSgt toh->name = SCM_TIMESTAMP; 4582e4f35dbaSgt toh->len = sizeof (struct T_opthdr) + 4583e4f35dbaSgt sizeof (timestruc_t) + _POINTER_ALIGNMENT; 4584e4f35dbaSgt toh->status = 0; 4585e4f35dbaSgt dstopt += sizeof (struct T_opthdr); 4586e4f35dbaSgt /* Align for gethrestime() */ 4587e4f35dbaSgt dstopt = (char *)P2ROUNDUP((intptr_t)dstopt, 4588e4f35dbaSgt sizeof (intptr_t)); 4589e4f35dbaSgt gethrestime((timestruc_t *)dstopt); 4590d6287788Srshoaib dstopt = (char *)toh + toh->len; 4591d6287788Srshoaib udi_size -= toh->len; 4592d6287788Srshoaib } 4593d6287788Srshoaib 4594d6287788Srshoaib /* 4595d6287788Srshoaib * CAUTION: 4596d6287788Srshoaib * Due to aligment issues 4597d6287788Srshoaib * Processing of IP_RECVTTL option 4598d6287788Srshoaib * should always be the last. Adding 4599d6287788Srshoaib * any option processing after this will 4600d6287788Srshoaib * cause alignment panic. 4601d6287788Srshoaib */ 4602fc80c0dfSnordmark if (udp_bits.udpb_recvttl) { 4603d6287788Srshoaib struct T_opthdr *toh; 4604d6287788Srshoaib uint8_t *dstptr; 4605d6287788Srshoaib 4606d6287788Srshoaib toh = (struct T_opthdr *)dstopt; 4607d6287788Srshoaib toh->level = IPPROTO_IP; 4608d6287788Srshoaib toh->name = IP_RECVTTL; 4609d6287788Srshoaib toh->len = sizeof (struct T_opthdr) + 4610d6287788Srshoaib sizeof (uint8_t); 4611d6287788Srshoaib toh->status = 0; 4612d6287788Srshoaib dstopt += sizeof (struct T_opthdr); 4613d6287788Srshoaib dstptr = (uint8_t *)dstopt; 4614d6287788Srshoaib *dstptr = ((ipha_t *)rptr)->ipha_ttl; 4615fc80c0dfSnordmark dstopt += sizeof (uint8_t); 4616e4f35dbaSgt udi_size -= toh->len; 4617e4f35dbaSgt } 46187c478bd9Sstevel@tonic-gate 46197c478bd9Sstevel@tonic-gate /* Consumed all of allocated space */ 46207c478bd9Sstevel@tonic-gate ASSERT(udi_size == 0); 46217c478bd9Sstevel@tonic-gate } 46227c478bd9Sstevel@tonic-gate } else { 46237c478bd9Sstevel@tonic-gate sin6_t *sin6; 46247c478bd9Sstevel@tonic-gate 46257c478bd9Sstevel@tonic-gate /* 46267c478bd9Sstevel@tonic-gate * Handle both IPv4 and IPv6 packets for IPv6 sockets. 46277c478bd9Sstevel@tonic-gate * 46287c478bd9Sstevel@tonic-gate * Normally we only send up the address. If receiving of any 46297c478bd9Sstevel@tonic-gate * optional receive side information is enabled, we also send 46307c478bd9Sstevel@tonic-gate * that up as options. 46317c478bd9Sstevel@tonic-gate */ 46327c478bd9Sstevel@tonic-gate udi_size = sizeof (struct T_unitdata_ind) + sizeof (sin6_t); 46337c478bd9Sstevel@tonic-gate 46347c478bd9Sstevel@tonic-gate if (ipp.ipp_fields & (IPPF_HOPOPTS|IPPF_DSTOPTS|IPPF_RTDSTOPTS| 46357c478bd9Sstevel@tonic-gate IPPF_RTHDR|IPPF_IFINDEX)) { 4636fc80c0dfSnordmark if ((udp_bits.udpb_ipv6_recvhopopts) && 46377c478bd9Sstevel@tonic-gate (ipp.ipp_fields & IPPF_HOPOPTS)) { 463845916cd2Sjpk size_t hlen; 463945916cd2Sjpk 4640f4b3ec61Sdh UDP_STAT(us, udp_in_recvhopopts); 464145916cd2Sjpk hlen = copy_hop_opts(&ipp, NULL); 464245916cd2Sjpk if (hlen == 0) 464345916cd2Sjpk ipp.ipp_fields &= ~IPPF_HOPOPTS; 464445916cd2Sjpk udi_size += hlen; 46457c478bd9Sstevel@tonic-gate } 4646fc80c0dfSnordmark if (((udp_bits.udpb_ipv6_recvdstopts) || 4647fc80c0dfSnordmark udp_bits.udpb_old_ipv6_recvdstopts) && 46487c478bd9Sstevel@tonic-gate (ipp.ipp_fields & IPPF_DSTOPTS)) { 46497c478bd9Sstevel@tonic-gate udi_size += sizeof (struct T_opthdr) + 46507c478bd9Sstevel@tonic-gate ipp.ipp_dstoptslen; 4651f4b3ec61Sdh UDP_STAT(us, udp_in_recvdstopts); 46527c478bd9Sstevel@tonic-gate } 4653fc80c0dfSnordmark if ((((udp_bits.udpb_ipv6_recvdstopts) && 4654fc80c0dfSnordmark udp_bits.udpb_ipv6_recvrthdr && 46557c478bd9Sstevel@tonic-gate (ipp.ipp_fields & IPPF_RTHDR)) || 4656fc80c0dfSnordmark (udp_bits.udpb_ipv6_recvrthdrdstopts)) && 46577c478bd9Sstevel@tonic-gate (ipp.ipp_fields & IPPF_RTDSTOPTS)) { 46587c478bd9Sstevel@tonic-gate udi_size += sizeof (struct T_opthdr) + 46597c478bd9Sstevel@tonic-gate ipp.ipp_rtdstoptslen; 4660f4b3ec61Sdh UDP_STAT(us, udp_in_recvrtdstopts); 46617c478bd9Sstevel@tonic-gate } 4662fc80c0dfSnordmark if ((udp_bits.udpb_ipv6_recvrthdr) && 46637c478bd9Sstevel@tonic-gate (ipp.ipp_fields & IPPF_RTHDR)) { 46647c478bd9Sstevel@tonic-gate udi_size += sizeof (struct T_opthdr) + 46657c478bd9Sstevel@tonic-gate ipp.ipp_rthdrlen; 4666f4b3ec61Sdh UDP_STAT(us, udp_in_recvrthdr); 46677c478bd9Sstevel@tonic-gate } 4668fc80c0dfSnordmark if ((udp_bits.udpb_ip_recvpktinfo) && 46697c478bd9Sstevel@tonic-gate (ipp.ipp_fields & IPPF_IFINDEX)) { 46707c478bd9Sstevel@tonic-gate udi_size += sizeof (struct T_opthdr) + 46717c478bd9Sstevel@tonic-gate sizeof (struct in6_pktinfo); 4672f4b3ec61Sdh UDP_STAT(us, udp_in_recvpktinfo); 46737c478bd9Sstevel@tonic-gate } 46747c478bd9Sstevel@tonic-gate 46757c478bd9Sstevel@tonic-gate } 4676fc80c0dfSnordmark if ((udp_bits.udpb_recvucred) && 4677fc80c0dfSnordmark (cr = DB_CRED(mp)) != NULL) { 46787c478bd9Sstevel@tonic-gate udi_size += sizeof (struct T_opthdr) + ucredsize; 46797c478bd9Sstevel@tonic-gate cpid = DB_CPID(mp); 4680f4b3ec61Sdh UDP_STAT(us, udp_in_recvucred); 46817c478bd9Sstevel@tonic-gate } 46827c478bd9Sstevel@tonic-gate 4683ae43f94fSnordmark /* 4684ae43f94fSnordmark * If SO_TIMESTAMP is set allocate the appropriate sized 4685ae43f94fSnordmark * buffer. Since gethrestime() expects a pointer aligned 4686ae43f94fSnordmark * argument, we allocate space necessary for extra 4687ae43f94fSnordmark * alignment (even though it might not be used). 4688ae43f94fSnordmark */ 4689ae43f94fSnordmark if (udp_bits.udpb_timestamp) { 4690ae43f94fSnordmark udi_size += sizeof (struct T_opthdr) + 4691ae43f94fSnordmark sizeof (timestruc_t) + _POINTER_ALIGNMENT; 4692ae43f94fSnordmark UDP_STAT(us, udp_in_timestamp); 4693ae43f94fSnordmark } 4694ae43f94fSnordmark 4695fc80c0dfSnordmark if (udp_bits.udpb_ipv6_recvhoplimit) { 46967c478bd9Sstevel@tonic-gate udi_size += sizeof (struct T_opthdr) + sizeof (int); 4697f4b3ec61Sdh UDP_STAT(us, udp_in_recvhoplimit); 4698ff550d0eSmasputra } 46997c478bd9Sstevel@tonic-gate 4700fc80c0dfSnordmark if (udp_bits.udpb_ipv6_recvtclass) { 47017c478bd9Sstevel@tonic-gate udi_size += sizeof (struct T_opthdr) + sizeof (int); 4702f4b3ec61Sdh UDP_STAT(us, udp_in_recvtclass); 4703ff550d0eSmasputra } 47047c478bd9Sstevel@tonic-gate 47057c478bd9Sstevel@tonic-gate mp1 = allocb(udi_size, BPRI_MED); 47067c478bd9Sstevel@tonic-gate if (mp1 == NULL) { 47077c478bd9Sstevel@tonic-gate freemsg(mp); 47087c478bd9Sstevel@tonic-gate if (options_mp != NULL) 47097c478bd9Sstevel@tonic-gate freeb(options_mp); 4710fc80c0dfSnordmark BUMP_MIB(&us->us_udp_mib, udpInErrors); 47117c478bd9Sstevel@tonic-gate return; 47127c478bd9Sstevel@tonic-gate } 47137c478bd9Sstevel@tonic-gate mp1->b_cont = mp; 47147c478bd9Sstevel@tonic-gate mp = mp1; 47157c478bd9Sstevel@tonic-gate mp->b_datap->db_type = M_PROTO; 47167c478bd9Sstevel@tonic-gate tudi = (struct T_unitdata_ind *)mp->b_rptr; 47177c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)tudi + udi_size; 47187c478bd9Sstevel@tonic-gate tudi->PRIM_type = T_UNITDATA_IND; 47197c478bd9Sstevel@tonic-gate tudi->SRC_length = sizeof (sin6_t); 47207c478bd9Sstevel@tonic-gate tudi->SRC_offset = sizeof (struct T_unitdata_ind); 47217c478bd9Sstevel@tonic-gate tudi->OPT_offset = sizeof (struct T_unitdata_ind) + 47227c478bd9Sstevel@tonic-gate sizeof (sin6_t); 47237c478bd9Sstevel@tonic-gate udi_size -= (sizeof (struct T_unitdata_ind) + sizeof (sin6_t)); 47247c478bd9Sstevel@tonic-gate tudi->OPT_length = udi_size; 47257c478bd9Sstevel@tonic-gate sin6 = (sin6_t *)&tudi[1]; 47267c478bd9Sstevel@tonic-gate if (ipversion == IPV4_VERSION) { 47277c478bd9Sstevel@tonic-gate in6_addr_t v6dst; 47287c478bd9Sstevel@tonic-gate 47297c478bd9Sstevel@tonic-gate IN6_IPADDR_TO_V4MAPPED(((ipha_t *)rptr)->ipha_src, 47307c478bd9Sstevel@tonic-gate &sin6->sin6_addr); 47317c478bd9Sstevel@tonic-gate IN6_IPADDR_TO_V4MAPPED(((ipha_t *)rptr)->ipha_dst, 47327c478bd9Sstevel@tonic-gate &v6dst); 47337c478bd9Sstevel@tonic-gate sin6->sin6_flowinfo = 0; 47347c478bd9Sstevel@tonic-gate sin6->sin6_scope_id = 0; 47357c478bd9Sstevel@tonic-gate sin6->__sin6_src_id = ip_srcid_find_addr(&v6dst, 4736f4b3ec61Sdh connp->conn_zoneid, us->us_netstack); 47377c478bd9Sstevel@tonic-gate } else { 47387c478bd9Sstevel@tonic-gate sin6->sin6_addr = ip6h->ip6_src; 47397c478bd9Sstevel@tonic-gate /* No sin6_flowinfo per API */ 47407c478bd9Sstevel@tonic-gate sin6->sin6_flowinfo = 0; 47417c478bd9Sstevel@tonic-gate /* For link-scope source pass up scope id */ 47427c478bd9Sstevel@tonic-gate if ((ipp.ipp_fields & IPPF_IFINDEX) && 47437c478bd9Sstevel@tonic-gate IN6_IS_ADDR_LINKSCOPE(&ip6h->ip6_src)) 47447c478bd9Sstevel@tonic-gate sin6->sin6_scope_id = ipp.ipp_ifindex; 47457c478bd9Sstevel@tonic-gate else 47467c478bd9Sstevel@tonic-gate sin6->sin6_scope_id = 0; 4747ff550d0eSmasputra sin6->__sin6_src_id = ip_srcid_find_addr( 4748f4b3ec61Sdh &ip6h->ip6_dst, connp->conn_zoneid, 4749f4b3ec61Sdh us->us_netstack); 47507c478bd9Sstevel@tonic-gate } 47517c478bd9Sstevel@tonic-gate sin6->sin6_port = udpha->uha_src_port; 47527c478bd9Sstevel@tonic-gate sin6->sin6_family = udp->udp_family; 47537c478bd9Sstevel@tonic-gate 47547c478bd9Sstevel@tonic-gate if (udi_size != 0) { 47557c478bd9Sstevel@tonic-gate uchar_t *dstopt; 47567c478bd9Sstevel@tonic-gate 47577c478bd9Sstevel@tonic-gate dstopt = (uchar_t *)&sin6[1]; 4758fc80c0dfSnordmark if ((udp_bits.udpb_ip_recvpktinfo) && 47597c478bd9Sstevel@tonic-gate (ipp.ipp_fields & IPPF_IFINDEX)) { 47607c478bd9Sstevel@tonic-gate struct T_opthdr *toh; 47617c478bd9Sstevel@tonic-gate struct in6_pktinfo *pkti; 47627c478bd9Sstevel@tonic-gate 47637c478bd9Sstevel@tonic-gate toh = (struct T_opthdr *)dstopt; 47647c478bd9Sstevel@tonic-gate toh->level = IPPROTO_IPV6; 47657c478bd9Sstevel@tonic-gate toh->name = IPV6_PKTINFO; 47667c478bd9Sstevel@tonic-gate toh->len = sizeof (struct T_opthdr) + 47677c478bd9Sstevel@tonic-gate sizeof (*pkti); 47687c478bd9Sstevel@tonic-gate toh->status = 0; 47697c478bd9Sstevel@tonic-gate dstopt += sizeof (struct T_opthdr); 47707c478bd9Sstevel@tonic-gate pkti = (struct in6_pktinfo *)dstopt; 47717c478bd9Sstevel@tonic-gate if (ipversion == IPV6_VERSION) 47727c478bd9Sstevel@tonic-gate pkti->ipi6_addr = ip6h->ip6_dst; 47737c478bd9Sstevel@tonic-gate else 47747c478bd9Sstevel@tonic-gate IN6_IPADDR_TO_V4MAPPED( 4775437220cdSdanmcd ((ipha_t *)rptr)->ipha_dst, 4776437220cdSdanmcd &pkti->ipi6_addr); 47777c478bd9Sstevel@tonic-gate pkti->ipi6_ifindex = ipp.ipp_ifindex; 47787c478bd9Sstevel@tonic-gate dstopt += sizeof (*pkti); 47797c478bd9Sstevel@tonic-gate udi_size -= toh->len; 47807c478bd9Sstevel@tonic-gate } 4781fc80c0dfSnordmark if (udp_bits.udpb_ipv6_recvhoplimit) { 47827c478bd9Sstevel@tonic-gate struct T_opthdr *toh; 47837c478bd9Sstevel@tonic-gate 47847c478bd9Sstevel@tonic-gate toh = (struct T_opthdr *)dstopt; 47857c478bd9Sstevel@tonic-gate toh->level = IPPROTO_IPV6; 47867c478bd9Sstevel@tonic-gate toh->name = IPV6_HOPLIMIT; 47877c478bd9Sstevel@tonic-gate toh->len = sizeof (struct T_opthdr) + 47887c478bd9Sstevel@tonic-gate sizeof (uint_t); 47897c478bd9Sstevel@tonic-gate toh->status = 0; 47907c478bd9Sstevel@tonic-gate dstopt += sizeof (struct T_opthdr); 47917c478bd9Sstevel@tonic-gate if (ipversion == IPV6_VERSION) 47927c478bd9Sstevel@tonic-gate *(uint_t *)dstopt = ip6h->ip6_hops; 47937c478bd9Sstevel@tonic-gate else 47947c478bd9Sstevel@tonic-gate *(uint_t *)dstopt = 47957c478bd9Sstevel@tonic-gate ((ipha_t *)rptr)->ipha_ttl; 47967c478bd9Sstevel@tonic-gate dstopt += sizeof (uint_t); 47977c478bd9Sstevel@tonic-gate udi_size -= toh->len; 47987c478bd9Sstevel@tonic-gate } 4799fc80c0dfSnordmark if (udp_bits.udpb_ipv6_recvtclass) { 48007c478bd9Sstevel@tonic-gate struct T_opthdr *toh; 48017c478bd9Sstevel@tonic-gate 48027c478bd9Sstevel@tonic-gate toh = (struct T_opthdr *)dstopt; 48037c478bd9Sstevel@tonic-gate toh->level = IPPROTO_IPV6; 48047c478bd9Sstevel@tonic-gate toh->name = IPV6_TCLASS; 48057c478bd9Sstevel@tonic-gate toh->len = sizeof (struct T_opthdr) + 48067c478bd9Sstevel@tonic-gate sizeof (uint_t); 48077c478bd9Sstevel@tonic-gate toh->status = 0; 48087c478bd9Sstevel@tonic-gate dstopt += sizeof (struct T_opthdr); 48097c478bd9Sstevel@tonic-gate if (ipversion == IPV6_VERSION) { 48107c478bd9Sstevel@tonic-gate *(uint_t *)dstopt = 4811437220cdSdanmcd IPV6_FLOW_TCLASS(ip6h->ip6_flow); 48127c478bd9Sstevel@tonic-gate } else { 48137c478bd9Sstevel@tonic-gate ipha_t *ipha = (ipha_t *)rptr; 48147c478bd9Sstevel@tonic-gate *(uint_t *)dstopt = 48157c478bd9Sstevel@tonic-gate ipha->ipha_type_of_service; 48167c478bd9Sstevel@tonic-gate } 48177c478bd9Sstevel@tonic-gate dstopt += sizeof (uint_t); 48187c478bd9Sstevel@tonic-gate udi_size -= toh->len; 48197c478bd9Sstevel@tonic-gate } 4820fc80c0dfSnordmark if ((udp_bits.udpb_ipv6_recvhopopts) && 48217c478bd9Sstevel@tonic-gate (ipp.ipp_fields & IPPF_HOPOPTS)) { 482245916cd2Sjpk size_t hlen; 48237c478bd9Sstevel@tonic-gate 482445916cd2Sjpk hlen = copy_hop_opts(&ipp, dstopt); 482545916cd2Sjpk dstopt += hlen; 482645916cd2Sjpk udi_size -= hlen; 48277c478bd9Sstevel@tonic-gate } 4828fc80c0dfSnordmark if ((udp_bits.udpb_ipv6_recvdstopts) && 4829fc80c0dfSnordmark (udp_bits.udpb_ipv6_recvrthdr) && 48307c478bd9Sstevel@tonic-gate (ipp.ipp_fields & IPPF_RTHDR) && 48317c478bd9Sstevel@tonic-gate (ipp.ipp_fields & IPPF_RTDSTOPTS)) { 48327c478bd9Sstevel@tonic-gate struct T_opthdr *toh; 48337c478bd9Sstevel@tonic-gate 48347c478bd9Sstevel@tonic-gate toh = (struct T_opthdr *)dstopt; 48357c478bd9Sstevel@tonic-gate toh->level = IPPROTO_IPV6; 48367c478bd9Sstevel@tonic-gate toh->name = IPV6_DSTOPTS; 48377c478bd9Sstevel@tonic-gate toh->len = sizeof (struct T_opthdr) + 48387c478bd9Sstevel@tonic-gate ipp.ipp_rtdstoptslen; 48397c478bd9Sstevel@tonic-gate toh->status = 0; 48407c478bd9Sstevel@tonic-gate dstopt += sizeof (struct T_opthdr); 48417c478bd9Sstevel@tonic-gate bcopy(ipp.ipp_rtdstopts, dstopt, 48427c478bd9Sstevel@tonic-gate ipp.ipp_rtdstoptslen); 48437c478bd9Sstevel@tonic-gate dstopt += ipp.ipp_rtdstoptslen; 48447c478bd9Sstevel@tonic-gate udi_size -= toh->len; 48457c478bd9Sstevel@tonic-gate } 4846fc80c0dfSnordmark if ((udp_bits.udpb_ipv6_recvrthdr) && 48477c478bd9Sstevel@tonic-gate (ipp.ipp_fields & IPPF_RTHDR)) { 48487c478bd9Sstevel@tonic-gate struct T_opthdr *toh; 48497c478bd9Sstevel@tonic-gate 48507c478bd9Sstevel@tonic-gate toh = (struct T_opthdr *)dstopt; 48517c478bd9Sstevel@tonic-gate toh->level = IPPROTO_IPV6; 48527c478bd9Sstevel@tonic-gate toh->name = IPV6_RTHDR; 48537c478bd9Sstevel@tonic-gate toh->len = sizeof (struct T_opthdr) + 48547c478bd9Sstevel@tonic-gate ipp.ipp_rthdrlen; 48557c478bd9Sstevel@tonic-gate toh->status = 0; 48567c478bd9Sstevel@tonic-gate dstopt += sizeof (struct T_opthdr); 48577c478bd9Sstevel@tonic-gate bcopy(ipp.ipp_rthdr, dstopt, ipp.ipp_rthdrlen); 48587c478bd9Sstevel@tonic-gate dstopt += ipp.ipp_rthdrlen; 48597c478bd9Sstevel@tonic-gate udi_size -= toh->len; 48607c478bd9Sstevel@tonic-gate } 4861fc80c0dfSnordmark if ((udp_bits.udpb_ipv6_recvdstopts) && 48627c478bd9Sstevel@tonic-gate (ipp.ipp_fields & IPPF_DSTOPTS)) { 48637c478bd9Sstevel@tonic-gate struct T_opthdr *toh; 48647c478bd9Sstevel@tonic-gate 48657c478bd9Sstevel@tonic-gate toh = (struct T_opthdr *)dstopt; 48667c478bd9Sstevel@tonic-gate toh->level = IPPROTO_IPV6; 48677c478bd9Sstevel@tonic-gate toh->name = IPV6_DSTOPTS; 48687c478bd9Sstevel@tonic-gate toh->len = sizeof (struct T_opthdr) + 48697c478bd9Sstevel@tonic-gate ipp.ipp_dstoptslen; 48707c478bd9Sstevel@tonic-gate toh->status = 0; 48717c478bd9Sstevel@tonic-gate dstopt += sizeof (struct T_opthdr); 48727c478bd9Sstevel@tonic-gate bcopy(ipp.ipp_dstopts, dstopt, 48737c478bd9Sstevel@tonic-gate ipp.ipp_dstoptslen); 48747c478bd9Sstevel@tonic-gate dstopt += ipp.ipp_dstoptslen; 48757c478bd9Sstevel@tonic-gate udi_size -= toh->len; 48767c478bd9Sstevel@tonic-gate } 48777c478bd9Sstevel@tonic-gate 48787c478bd9Sstevel@tonic-gate if (cr != NULL) { 48797c478bd9Sstevel@tonic-gate struct T_opthdr *toh; 48807c478bd9Sstevel@tonic-gate 48817c478bd9Sstevel@tonic-gate toh = (struct T_opthdr *)dstopt; 48827c478bd9Sstevel@tonic-gate toh->level = SOL_SOCKET; 48837c478bd9Sstevel@tonic-gate toh->name = SCM_UCRED; 48847c478bd9Sstevel@tonic-gate toh->len = sizeof (struct T_opthdr) + ucredsize; 48857c478bd9Sstevel@tonic-gate toh->status = 0; 488645916cd2Sjpk (void) cred2ucred(cr, cpid, &toh[1], rcr); 48877c478bd9Sstevel@tonic-gate dstopt += toh->len; 48887c478bd9Sstevel@tonic-gate udi_size -= toh->len; 48897c478bd9Sstevel@tonic-gate } 4890ae43f94fSnordmark if (udp_bits.udpb_timestamp) { 4891ae43f94fSnordmark struct T_opthdr *toh; 4892ae43f94fSnordmark 4893ae43f94fSnordmark toh = (struct T_opthdr *)dstopt; 4894ae43f94fSnordmark toh->level = SOL_SOCKET; 4895ae43f94fSnordmark toh->name = SCM_TIMESTAMP; 4896ae43f94fSnordmark toh->len = sizeof (struct T_opthdr) + 4897ae43f94fSnordmark sizeof (timestruc_t) + _POINTER_ALIGNMENT; 4898ae43f94fSnordmark toh->status = 0; 4899ae43f94fSnordmark dstopt += sizeof (struct T_opthdr); 4900ae43f94fSnordmark /* Align for gethrestime() */ 4901ae43f94fSnordmark dstopt = (uchar_t *)P2ROUNDUP((intptr_t)dstopt, 4902ae43f94fSnordmark sizeof (intptr_t)); 4903ae43f94fSnordmark gethrestime((timestruc_t *)dstopt); 4904ae43f94fSnordmark dstopt = (uchar_t *)toh + toh->len; 4905ae43f94fSnordmark udi_size -= toh->len; 4906ae43f94fSnordmark } 4907ae43f94fSnordmark 49087c478bd9Sstevel@tonic-gate /* Consumed all of allocated space */ 49097c478bd9Sstevel@tonic-gate ASSERT(udi_size == 0); 49107c478bd9Sstevel@tonic-gate } 49117c478bd9Sstevel@tonic-gate #undef sin6 49127c478bd9Sstevel@tonic-gate /* No IP_RECVDSTADDR for IPv6. */ 49137c478bd9Sstevel@tonic-gate } 49147c478bd9Sstevel@tonic-gate 4915fc80c0dfSnordmark BUMP_MIB(&us->us_udp_mib, udpHCInDatagrams); 49167c478bd9Sstevel@tonic-gate if (options_mp != NULL) 49177c478bd9Sstevel@tonic-gate freeb(options_mp); 4918ff550d0eSmasputra 4919fc80c0dfSnordmark if (udp_bits.udpb_direct_sockfs) { 4920ff550d0eSmasputra /* 4921ff550d0eSmasputra * There is nothing above us except for the stream head; 4922ff550d0eSmasputra * use the read-side synchronous stream interface in 4923ff550d0eSmasputra * order to reduce the time spent in interrupt thread. 4924ff550d0eSmasputra */ 4925ff550d0eSmasputra ASSERT(udp->udp_issocket); 4926fc80c0dfSnordmark udp_rcv_enqueue(connp->conn_rq, udp, mp, mp_len); 4927ff550d0eSmasputra } else { 4928ff550d0eSmasputra /* 4929ff550d0eSmasputra * Use regular STREAMS interface to pass data upstream 4930ff550d0eSmasputra * if this is not a socket endpoint, or if we have 4931ff550d0eSmasputra * switched over to the slow mode due to sockmod being 4932ff550d0eSmasputra * popped or a module being pushed on top of us. 4933ff550d0eSmasputra */ 4934fc80c0dfSnordmark putnext(connp->conn_rq, mp); 4935ff550d0eSmasputra } 4936ff550d0eSmasputra return; 4937ff550d0eSmasputra 4938ff550d0eSmasputra tossit: 4939ff550d0eSmasputra freemsg(mp); 4940ff550d0eSmasputra if (options_mp != NULL) 4941ff550d0eSmasputra freeb(options_mp); 4942fc80c0dfSnordmark BUMP_MIB(&us->us_udp_mib, udpInErrors); 49437c478bd9Sstevel@tonic-gate } 49447c478bd9Sstevel@tonic-gate 49457c478bd9Sstevel@tonic-gate /* 4946fc80c0dfSnordmark * Handle the results of a T_BIND_REQ whether deferred by IP or handled 4947fc80c0dfSnordmark * immediately. 49487c478bd9Sstevel@tonic-gate */ 49497c478bd9Sstevel@tonic-gate static void 4950fc80c0dfSnordmark udp_bind_result(conn_t *connp, mblk_t *mp) 49517c478bd9Sstevel@tonic-gate { 49527c478bd9Sstevel@tonic-gate struct T_error_ack *tea; 49537c478bd9Sstevel@tonic-gate 49547c478bd9Sstevel@tonic-gate switch (mp->b_datap->db_type) { 49557c478bd9Sstevel@tonic-gate case M_PROTO: 49567c478bd9Sstevel@tonic-gate case M_PCPROTO: 49577c478bd9Sstevel@tonic-gate /* M_PROTO messages contain some type of TPI message. */ 4958fc80c0dfSnordmark ASSERT((uintptr_t)(mp->b_wptr - mp->b_rptr) <= 4959fc80c0dfSnordmark (uintptr_t)INT_MAX); 4960fc80c0dfSnordmark if (mp->b_wptr - mp->b_rptr < sizeof (t_scalar_t)) { 49617c478bd9Sstevel@tonic-gate freemsg(mp); 49627c478bd9Sstevel@tonic-gate return; 49637c478bd9Sstevel@tonic-gate } 4964fc80c0dfSnordmark tea = (struct T_error_ack *)mp->b_rptr; 49657c478bd9Sstevel@tonic-gate 49667c478bd9Sstevel@tonic-gate switch (tea->PRIM_type) { 49677c478bd9Sstevel@tonic-gate case T_ERROR_ACK: 49687c478bd9Sstevel@tonic-gate switch (tea->ERROR_prim) { 49697c478bd9Sstevel@tonic-gate case O_T_BIND_REQ: 4970fc80c0dfSnordmark case T_BIND_REQ: 4971fc80c0dfSnordmark udp_bind_error(connp, mp); 4972fc80c0dfSnordmark return; 49737c478bd9Sstevel@tonic-gate default: 49747c478bd9Sstevel@tonic-gate break; 49757c478bd9Sstevel@tonic-gate } 4976fc80c0dfSnordmark ASSERT(0); 49777c478bd9Sstevel@tonic-gate freemsg(mp); 49787c478bd9Sstevel@tonic-gate return; 49797c478bd9Sstevel@tonic-gate 4980fc80c0dfSnordmark case T_BIND_ACK: 4981fc80c0dfSnordmark udp_bind_ack(connp, mp); 49827c478bd9Sstevel@tonic-gate return; 49837c478bd9Sstevel@tonic-gate 4984fc80c0dfSnordmark default: 4985fc80c0dfSnordmark break; 49867c478bd9Sstevel@tonic-gate } 49877c478bd9Sstevel@tonic-gate freemsg(mp); 4988fc80c0dfSnordmark return; 4989fc80c0dfSnordmark default: 4990fc80c0dfSnordmark /* FIXME: other cases? */ 4991fc80c0dfSnordmark ASSERT(0); 4992fc80c0dfSnordmark freemsg(mp); 49937c478bd9Sstevel@tonic-gate return; 49947c478bd9Sstevel@tonic-gate } 49957c478bd9Sstevel@tonic-gate } 49967c478bd9Sstevel@tonic-gate 49977c478bd9Sstevel@tonic-gate /* 49987c478bd9Sstevel@tonic-gate * Process a T_BIND_ACK 49997c478bd9Sstevel@tonic-gate */ 50007c478bd9Sstevel@tonic-gate static void 5001fc80c0dfSnordmark udp_bind_ack(conn_t *connp, mblk_t *mp) 50027c478bd9Sstevel@tonic-gate { 5003fc80c0dfSnordmark udp_t *udp = connp->conn_udp; 50047c478bd9Sstevel@tonic-gate mblk_t *mp1; 50057c478bd9Sstevel@tonic-gate ire_t *ire; 50067c478bd9Sstevel@tonic-gate struct T_bind_ack *tba; 50077c478bd9Sstevel@tonic-gate uchar_t *addrp; 50087c478bd9Sstevel@tonic-gate ipa_conn_t *ac; 50097c478bd9Sstevel@tonic-gate ipa6_conn_t *ac6; 5010fc80c0dfSnordmark udp_fanout_t *udpf; 5011fc80c0dfSnordmark udp_stack_t *us = udp->udp_us; 50127c478bd9Sstevel@tonic-gate 5013fc80c0dfSnordmark ASSERT(udp->udp_pending_op != -1); 5014fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 50157c478bd9Sstevel@tonic-gate /* 50167c478bd9Sstevel@tonic-gate * If a broadcast/multicast address was bound set 50177c478bd9Sstevel@tonic-gate * the source address to 0. 50187c478bd9Sstevel@tonic-gate * This ensures no datagrams with broadcast address 50197c478bd9Sstevel@tonic-gate * as source address are emitted (which would violate 50207c478bd9Sstevel@tonic-gate * RFC1122 - Hosts requirements) 50217c478bd9Sstevel@tonic-gate * 50227c478bd9Sstevel@tonic-gate * Note that when connecting the returned IRE is 50237c478bd9Sstevel@tonic-gate * for the destination address and we only perform 50247c478bd9Sstevel@tonic-gate * the broadcast check for the source address (it 50257c478bd9Sstevel@tonic-gate * is OK to connect to a broadcast/multicast address.) 50267c478bd9Sstevel@tonic-gate */ 50277c478bd9Sstevel@tonic-gate mp1 = mp->b_cont; 50287c478bd9Sstevel@tonic-gate if (mp1 != NULL && mp1->b_datap->db_type == IRE_DB_TYPE) { 50297c478bd9Sstevel@tonic-gate ire = (ire_t *)mp1->b_rptr; 50307c478bd9Sstevel@tonic-gate 50317c478bd9Sstevel@tonic-gate /* 50327c478bd9Sstevel@tonic-gate * Note: we get IRE_BROADCAST for IPv6 to "mark" a multicast 50337c478bd9Sstevel@tonic-gate * local address. 50347c478bd9Sstevel@tonic-gate */ 5035fc80c0dfSnordmark udpf = &us->us_bind_fanout[UDP_BIND_HASH(udp->udp_port, 5036fc80c0dfSnordmark us->us_bind_fanout_size)]; 50377c478bd9Sstevel@tonic-gate if (ire->ire_type == IRE_BROADCAST && 50387c478bd9Sstevel@tonic-gate udp->udp_state != TS_DATA_XFER) { 5039fc80c0dfSnordmark ASSERT(udp->udp_pending_op == T_BIND_REQ || 5040fc80c0dfSnordmark udp->udp_pending_op == O_T_BIND_REQ); 50417c478bd9Sstevel@tonic-gate /* This was just a local bind to a broadcast addr */ 5042fc80c0dfSnordmark mutex_enter(&udpf->uf_lock); 50437c478bd9Sstevel@tonic-gate V6_SET_ZERO(udp->udp_v6src); 5044fc80c0dfSnordmark mutex_exit(&udpf->uf_lock); 50457c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET6) 5046fc80c0dfSnordmark (void) udp_build_hdrs(udp); 50477c478bd9Sstevel@tonic-gate } else if (V6_OR_V4_INADDR_ANY(udp->udp_v6src)) { 50487c478bd9Sstevel@tonic-gate /* 50497c478bd9Sstevel@tonic-gate * Local address not yet set - pick it from the 50507c478bd9Sstevel@tonic-gate * T_bind_ack 50517c478bd9Sstevel@tonic-gate */ 50527c478bd9Sstevel@tonic-gate tba = (struct T_bind_ack *)mp->b_rptr; 50537c478bd9Sstevel@tonic-gate addrp = &mp->b_rptr[tba->ADDR_offset]; 50547c478bd9Sstevel@tonic-gate switch (udp->udp_family) { 50557c478bd9Sstevel@tonic-gate case AF_INET: 50567c478bd9Sstevel@tonic-gate if (tba->ADDR_length == sizeof (ipa_conn_t)) { 50577c478bd9Sstevel@tonic-gate ac = (ipa_conn_t *)addrp; 50587c478bd9Sstevel@tonic-gate } else { 50597c478bd9Sstevel@tonic-gate ASSERT(tba->ADDR_length == 50607c478bd9Sstevel@tonic-gate sizeof (ipa_conn_x_t)); 50617c478bd9Sstevel@tonic-gate ac = &((ipa_conn_x_t *)addrp)->acx_conn; 50627c478bd9Sstevel@tonic-gate } 5063fc80c0dfSnordmark mutex_enter(&udpf->uf_lock); 50647c478bd9Sstevel@tonic-gate IN6_IPADDR_TO_V4MAPPED(ac->ac_laddr, 50657c478bd9Sstevel@tonic-gate &udp->udp_v6src); 5066fc80c0dfSnordmark mutex_exit(&udpf->uf_lock); 50677c478bd9Sstevel@tonic-gate break; 50687c478bd9Sstevel@tonic-gate case AF_INET6: 50697c478bd9Sstevel@tonic-gate if (tba->ADDR_length == sizeof (ipa6_conn_t)) { 50707c478bd9Sstevel@tonic-gate ac6 = (ipa6_conn_t *)addrp; 50717c478bd9Sstevel@tonic-gate } else { 50727c478bd9Sstevel@tonic-gate ASSERT(tba->ADDR_length == 50737c478bd9Sstevel@tonic-gate sizeof (ipa6_conn_x_t)); 50747c478bd9Sstevel@tonic-gate ac6 = &((ipa6_conn_x_t *) 50757c478bd9Sstevel@tonic-gate addrp)->ac6x_conn; 50767c478bd9Sstevel@tonic-gate } 5077fc80c0dfSnordmark mutex_enter(&udpf->uf_lock); 50787c478bd9Sstevel@tonic-gate udp->udp_v6src = ac6->ac6_laddr; 5079fc80c0dfSnordmark mutex_exit(&udpf->uf_lock); 5080fc80c0dfSnordmark (void) udp_build_hdrs(udp); 50817c478bd9Sstevel@tonic-gate break; 50827c478bd9Sstevel@tonic-gate } 50837c478bd9Sstevel@tonic-gate } 50847c478bd9Sstevel@tonic-gate mp1 = mp1->b_cont; 50857c478bd9Sstevel@tonic-gate } 5086fc80c0dfSnordmark udp->udp_pending_op = -1; 5087fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 50887c478bd9Sstevel@tonic-gate /* 50897c478bd9Sstevel@tonic-gate * Look for one or more appended ACK message added by 50907c478bd9Sstevel@tonic-gate * udp_connect or udp_disconnect. 50917c478bd9Sstevel@tonic-gate * If none found just send up the T_BIND_ACK. 50927c478bd9Sstevel@tonic-gate * udp_connect has appended a T_OK_ACK and a T_CONN_CON. 50937c478bd9Sstevel@tonic-gate * udp_disconnect has appended a T_OK_ACK. 50947c478bd9Sstevel@tonic-gate */ 50957c478bd9Sstevel@tonic-gate if (mp1 != NULL) { 50967c478bd9Sstevel@tonic-gate if (mp->b_cont == mp1) 50977c478bd9Sstevel@tonic-gate mp->b_cont = NULL; 50987c478bd9Sstevel@tonic-gate else { 50997c478bd9Sstevel@tonic-gate ASSERT(mp->b_cont->b_cont == mp1); 51007c478bd9Sstevel@tonic-gate mp->b_cont->b_cont = NULL; 51017c478bd9Sstevel@tonic-gate } 51027c478bd9Sstevel@tonic-gate freemsg(mp); 51037c478bd9Sstevel@tonic-gate mp = mp1; 51047c478bd9Sstevel@tonic-gate while (mp != NULL) { 51057c478bd9Sstevel@tonic-gate mp1 = mp->b_cont; 51067c478bd9Sstevel@tonic-gate mp->b_cont = NULL; 5107fc80c0dfSnordmark putnext(connp->conn_rq, mp); 51087c478bd9Sstevel@tonic-gate mp = mp1; 51097c478bd9Sstevel@tonic-gate } 51107c478bd9Sstevel@tonic-gate return; 51117c478bd9Sstevel@tonic-gate } 51127c478bd9Sstevel@tonic-gate freemsg(mp->b_cont); 51137c478bd9Sstevel@tonic-gate mp->b_cont = NULL; 5114fc80c0dfSnordmark putnext(connp->conn_rq, mp); 5115fc80c0dfSnordmark } 5116fc80c0dfSnordmark 5117fc80c0dfSnordmark static void 5118fc80c0dfSnordmark udp_bind_error(conn_t *connp, mblk_t *mp) 5119fc80c0dfSnordmark { 5120fc80c0dfSnordmark udp_t *udp = connp->conn_udp; 5121fc80c0dfSnordmark struct T_error_ack *tea; 5122fc80c0dfSnordmark udp_fanout_t *udpf; 5123fc80c0dfSnordmark udp_stack_t *us = udp->udp_us; 5124fc80c0dfSnordmark 5125fc80c0dfSnordmark tea = (struct T_error_ack *)mp->b_rptr; 5126fc80c0dfSnordmark 5127fc80c0dfSnordmark /* 5128fc80c0dfSnordmark * If our O_T_BIND_REQ/T_BIND_REQ fails, 5129fc80c0dfSnordmark * clear out the associated port and source 5130fc80c0dfSnordmark * address before passing the message 5131fc80c0dfSnordmark * upstream. If this was caused by a T_CONN_REQ 5132fc80c0dfSnordmark * revert back to bound state. 5133fc80c0dfSnordmark */ 5134fc80c0dfSnordmark 5135fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 5136fc80c0dfSnordmark ASSERT(udp->udp_pending_op != -1); 5137fc80c0dfSnordmark tea->ERROR_prim = udp->udp_pending_op; 5138fc80c0dfSnordmark udp->udp_pending_op = -1; 5139fc80c0dfSnordmark udpf = &us->us_bind_fanout[ 5140fc80c0dfSnordmark UDP_BIND_HASH(udp->udp_port, 5141fc80c0dfSnordmark us->us_bind_fanout_size)]; 5142fc80c0dfSnordmark mutex_enter(&udpf->uf_lock); 5143fc80c0dfSnordmark 5144fc80c0dfSnordmark switch (tea->ERROR_prim) { 5145fc80c0dfSnordmark case T_CONN_REQ: 5146fc80c0dfSnordmark ASSERT(udp->udp_state == TS_DATA_XFER); 5147fc80c0dfSnordmark /* Connect failed */ 5148fc80c0dfSnordmark /* Revert back to the bound source */ 5149fc80c0dfSnordmark udp->udp_v6src = udp->udp_bound_v6src; 5150fc80c0dfSnordmark udp->udp_state = TS_IDLE; 5151fc80c0dfSnordmark mutex_exit(&udpf->uf_lock); 5152fc80c0dfSnordmark if (udp->udp_family == AF_INET6) 5153fc80c0dfSnordmark (void) udp_build_hdrs(udp); 5154fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 5155fc80c0dfSnordmark break; 5156fc80c0dfSnordmark 5157fc80c0dfSnordmark case T_DISCON_REQ: 5158fc80c0dfSnordmark case T_BIND_REQ: 5159fc80c0dfSnordmark case O_T_BIND_REQ: 5160fc80c0dfSnordmark V6_SET_ZERO(udp->udp_v6src); 5161fc80c0dfSnordmark V6_SET_ZERO(udp->udp_bound_v6src); 5162fc80c0dfSnordmark udp->udp_state = TS_UNBND; 5163fc80c0dfSnordmark udp_bind_hash_remove(udp, B_TRUE); 5164fc80c0dfSnordmark udp->udp_port = 0; 5165fc80c0dfSnordmark mutex_exit(&udpf->uf_lock); 5166fc80c0dfSnordmark if (udp->udp_family == AF_INET6) 5167fc80c0dfSnordmark (void) udp_build_hdrs(udp); 5168fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 5169fc80c0dfSnordmark break; 5170fc80c0dfSnordmark 5171fc80c0dfSnordmark default: 5172fc80c0dfSnordmark mutex_exit(&udpf->uf_lock); 5173fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 5174fc80c0dfSnordmark (void) mi_strlog(connp->conn_rq, 1, 5175fc80c0dfSnordmark SL_ERROR|SL_TRACE, 5176fc80c0dfSnordmark "udp_input_other: bad ERROR_prim, " 5177fc80c0dfSnordmark "len %d", tea->ERROR_prim); 5178fc80c0dfSnordmark } 5179fc80c0dfSnordmark putnext(connp->conn_rq, mp); 51807c478bd9Sstevel@tonic-gate } 51817c478bd9Sstevel@tonic-gate 51827c478bd9Sstevel@tonic-gate /* 5183fc80c0dfSnordmark * return SNMP stuff in buffer in mpdata. We don't hold any lock and report 5184fc80c0dfSnordmark * information that can be changing beneath us. 51857c478bd9Sstevel@tonic-gate */ 5186fc80c0dfSnordmark mblk_t * 51877c478bd9Sstevel@tonic-gate udp_snmp_get(queue_t *q, mblk_t *mpctl) 51887c478bd9Sstevel@tonic-gate { 51897c478bd9Sstevel@tonic-gate mblk_t *mpdata; 51907c478bd9Sstevel@tonic-gate mblk_t *mp_conn_ctl; 519145916cd2Sjpk mblk_t *mp_attr_ctl; 51927c478bd9Sstevel@tonic-gate mblk_t *mp6_conn_ctl; 519345916cd2Sjpk mblk_t *mp6_attr_ctl; 519445916cd2Sjpk mblk_t *mp_conn_tail; 519545916cd2Sjpk mblk_t *mp_attr_tail; 519645916cd2Sjpk mblk_t *mp6_conn_tail; 519745916cd2Sjpk mblk_t *mp6_attr_tail; 51987c478bd9Sstevel@tonic-gate struct opthdr *optp; 51997c478bd9Sstevel@tonic-gate mib2_udpEntry_t ude; 52007c478bd9Sstevel@tonic-gate mib2_udp6Entry_t ude6; 520145916cd2Sjpk mib2_transportMLPEntry_t mlp; 52027c478bd9Sstevel@tonic-gate int state; 52037c478bd9Sstevel@tonic-gate zoneid_t zoneid; 5204ff550d0eSmasputra int i; 5205ff550d0eSmasputra connf_t *connfp; 5206ff550d0eSmasputra conn_t *connp = Q_TO_CONN(q); 520745916cd2Sjpk int v4_conn_idx; 520845916cd2Sjpk int v6_conn_idx; 520945916cd2Sjpk boolean_t needattr; 5210fc80c0dfSnordmark udp_t *udp; 5211f4b3ec61Sdh ip_stack_t *ipst = connp->conn_netstack->netstack_ip; 5212fc80c0dfSnordmark udp_stack_t *us = connp->conn_netstack->netstack_udp; 5213fc80c0dfSnordmark mblk_t *mp2ctl; 5214fc80c0dfSnordmark 5215fc80c0dfSnordmark /* 5216fc80c0dfSnordmark * make a copy of the original message 5217fc80c0dfSnordmark */ 5218fc80c0dfSnordmark mp2ctl = copymsg(mpctl); 52197c478bd9Sstevel@tonic-gate 522045916cd2Sjpk mp_conn_ctl = mp_attr_ctl = mp6_conn_ctl = NULL; 52217c478bd9Sstevel@tonic-gate if (mpctl == NULL || 52227c478bd9Sstevel@tonic-gate (mpdata = mpctl->b_cont) == NULL || 52237c478bd9Sstevel@tonic-gate (mp_conn_ctl = copymsg(mpctl)) == NULL || 522445916cd2Sjpk (mp_attr_ctl = copymsg(mpctl)) == NULL || 522545916cd2Sjpk (mp6_conn_ctl = copymsg(mpctl)) == NULL || 522645916cd2Sjpk (mp6_attr_ctl = copymsg(mpctl)) == NULL) { 52277c478bd9Sstevel@tonic-gate freemsg(mp_conn_ctl); 522845916cd2Sjpk freemsg(mp_attr_ctl); 522945916cd2Sjpk freemsg(mp6_conn_ctl); 5230fc80c0dfSnordmark freemsg(mpctl); 5231fc80c0dfSnordmark freemsg(mp2ctl); 52327c478bd9Sstevel@tonic-gate return (0); 52337c478bd9Sstevel@tonic-gate } 52347c478bd9Sstevel@tonic-gate 5235ff550d0eSmasputra zoneid = connp->conn_zoneid; 52367c478bd9Sstevel@tonic-gate 52377c478bd9Sstevel@tonic-gate /* fixed length structure for IPv4 and IPv6 counters */ 5238fc80c0dfSnordmark SET_MIB(us->us_udp_mib.udpEntrySize, sizeof (mib2_udpEntry_t)); 5239fc80c0dfSnordmark SET_MIB(us->us_udp_mib.udp6EntrySize, sizeof (mib2_udp6Entry_t)); 52403173664eSapersson /* synchronize 64- and 32-bit counters */ 5241fc80c0dfSnordmark SYNC32_MIB(&us->us_udp_mib, udpInDatagrams, udpHCInDatagrams); 5242fc80c0dfSnordmark SYNC32_MIB(&us->us_udp_mib, udpOutDatagrams, udpHCOutDatagrams); 52433173664eSapersson 52447c478bd9Sstevel@tonic-gate optp = (struct opthdr *)&mpctl->b_rptr[sizeof (struct T_optmgmt_ack)]; 52457c478bd9Sstevel@tonic-gate optp->level = MIB2_UDP; 52467c478bd9Sstevel@tonic-gate optp->name = 0; 5247fc80c0dfSnordmark (void) snmp_append_data(mpdata, (char *)&us->us_udp_mib, 5248fc80c0dfSnordmark sizeof (us->us_udp_mib)); 52497c478bd9Sstevel@tonic-gate optp->len = msgdsize(mpdata); 52507c478bd9Sstevel@tonic-gate qreply(q, mpctl); 52517c478bd9Sstevel@tonic-gate 525245916cd2Sjpk mp_conn_tail = mp_attr_tail = mp6_conn_tail = mp6_attr_tail = NULL; 525345916cd2Sjpk v4_conn_idx = v6_conn_idx = 0; 525445916cd2Sjpk 5255ff550d0eSmasputra for (i = 0; i < CONN_G_HASH_SIZE; i++) { 5256f4b3ec61Sdh connfp = &ipst->ips_ipcl_globalhash_fanout[i]; 5257ff550d0eSmasputra connp = NULL; 52587c478bd9Sstevel@tonic-gate 5259ff550d0eSmasputra while ((connp = ipcl_get_next_conn(connfp, connp, 5260fc80c0dfSnordmark IPCL_UDPCONN))) { 5261ff550d0eSmasputra udp = connp->conn_udp; 5262ff550d0eSmasputra if (zoneid != connp->conn_zoneid) 5263ff550d0eSmasputra continue; 52647c478bd9Sstevel@tonic-gate 5265ff550d0eSmasputra /* 5266ff550d0eSmasputra * Note that the port numbers are sent in 5267ff550d0eSmasputra * host byte order 5268ff550d0eSmasputra */ 52697c478bd9Sstevel@tonic-gate 5270ff550d0eSmasputra if (udp->udp_state == TS_UNBND) 5271ff550d0eSmasputra state = MIB2_UDP_unbound; 5272ff550d0eSmasputra else if (udp->udp_state == TS_IDLE) 5273ff550d0eSmasputra state = MIB2_UDP_idle; 5274ff550d0eSmasputra else if (udp->udp_state == TS_DATA_XFER) 5275ff550d0eSmasputra state = MIB2_UDP_connected; 5276ff550d0eSmasputra else 5277ff550d0eSmasputra state = MIB2_UDP_unknown; 52787c478bd9Sstevel@tonic-gate 527945916cd2Sjpk needattr = B_FALSE; 528045916cd2Sjpk bzero(&mlp, sizeof (mlp)); 528145916cd2Sjpk if (connp->conn_mlp_type != mlptSingle) { 528245916cd2Sjpk if (connp->conn_mlp_type == mlptShared || 528345916cd2Sjpk connp->conn_mlp_type == mlptBoth) 528445916cd2Sjpk mlp.tme_flags |= MIB2_TMEF_SHARED; 528545916cd2Sjpk if (connp->conn_mlp_type == mlptPrivate || 528645916cd2Sjpk connp->conn_mlp_type == mlptBoth) 528745916cd2Sjpk mlp.tme_flags |= MIB2_TMEF_PRIVATE; 528845916cd2Sjpk needattr = B_TRUE; 528945916cd2Sjpk } 529045916cd2Sjpk 5291ff550d0eSmasputra /* 5292ff550d0eSmasputra * Create an IPv4 table entry for IPv4 entries and also 5293ff550d0eSmasputra * any IPv6 entries which are bound to in6addr_any 5294ff550d0eSmasputra * (i.e. anything a IPv4 peer could connect/send to). 5295ff550d0eSmasputra */ 5296ff550d0eSmasputra if (udp->udp_ipversion == IPV4_VERSION || 5297ff550d0eSmasputra (udp->udp_state <= TS_IDLE && 5298ff550d0eSmasputra IN6_IS_ADDR_UNSPECIFIED(&udp->udp_v6src))) { 5299ff550d0eSmasputra ude.udpEntryInfo.ue_state = state; 53007c478bd9Sstevel@tonic-gate /* 5301ff550d0eSmasputra * If in6addr_any this will set it to 5302ff550d0eSmasputra * INADDR_ANY 53037c478bd9Sstevel@tonic-gate */ 5304ff550d0eSmasputra ude.udpLocalAddress = 5305ff550d0eSmasputra V4_PART_OF_V6(udp->udp_v6src); 5306ff550d0eSmasputra ude.udpLocalPort = ntohs(udp->udp_port); 5307ff550d0eSmasputra if (udp->udp_state == TS_DATA_XFER) { 5308ff550d0eSmasputra /* 5309ff550d0eSmasputra * Can potentially get here for 5310ff550d0eSmasputra * v6 socket if another process 5311ff550d0eSmasputra * (say, ping) has just done a 5312ff550d0eSmasputra * sendto(), changing the state 5313ff550d0eSmasputra * from the TS_IDLE above to 5314ff550d0eSmasputra * TS_DATA_XFER by the time we hit 5315ff550d0eSmasputra * this part of the code. 5316ff550d0eSmasputra */ 5317ff550d0eSmasputra ude.udpEntryInfo.ue_RemoteAddress = 5318ff550d0eSmasputra V4_PART_OF_V6(udp->udp_v6dst); 5319ff550d0eSmasputra ude.udpEntryInfo.ue_RemotePort = 5320ff550d0eSmasputra ntohs(udp->udp_dstport); 5321ff550d0eSmasputra } else { 5322ff550d0eSmasputra ude.udpEntryInfo.ue_RemoteAddress = 0; 5323ff550d0eSmasputra ude.udpEntryInfo.ue_RemotePort = 0; 5324ff550d0eSmasputra } 53253173664eSapersson 53263173664eSapersson /* 53273173664eSapersson * We make the assumption that all udp_t 53283173664eSapersson * structs will be created within an address 53293173664eSapersson * region no larger than 32-bits. 53303173664eSapersson */ 53313173664eSapersson ude.udpInstance = (uint32_t)(uintptr_t)udp; 53323173664eSapersson ude.udpCreationProcess = 53333173664eSapersson (udp->udp_open_pid < 0) ? 53343173664eSapersson MIB2_UNKNOWN_PROCESS : 53353173664eSapersson udp->udp_open_pid; 53363173664eSapersson ude.udpCreationTime = udp->udp_open_time; 53373173664eSapersson 533845916cd2Sjpk (void) snmp_append_data2(mp_conn_ctl->b_cont, 5339ff550d0eSmasputra &mp_conn_tail, (char *)&ude, sizeof (ude)); 534045916cd2Sjpk mlp.tme_connidx = v4_conn_idx++; 534145916cd2Sjpk if (needattr) 534245916cd2Sjpk (void) snmp_append_data2( 534345916cd2Sjpk mp_attr_ctl->b_cont, &mp_attr_tail, 534445916cd2Sjpk (char *)&mlp, sizeof (mlp)); 53457c478bd9Sstevel@tonic-gate } 5346ff550d0eSmasputra if (udp->udp_ipversion == IPV6_VERSION) { 5347ff550d0eSmasputra ude6.udp6EntryInfo.ue_state = state; 5348ff550d0eSmasputra ude6.udp6LocalAddress = udp->udp_v6src; 5349ff550d0eSmasputra ude6.udp6LocalPort = ntohs(udp->udp_port); 5350ff550d0eSmasputra ude6.udp6IfIndex = udp->udp_bound_if; 5351ff550d0eSmasputra if (udp->udp_state == TS_DATA_XFER) { 5352ff550d0eSmasputra ude6.udp6EntryInfo.ue_RemoteAddress = 5353ff550d0eSmasputra udp->udp_v6dst; 5354ff550d0eSmasputra ude6.udp6EntryInfo.ue_RemotePort = 5355ff550d0eSmasputra ntohs(udp->udp_dstport); 5356ff550d0eSmasputra } else { 5357ff550d0eSmasputra ude6.udp6EntryInfo.ue_RemoteAddress = 5358ff550d0eSmasputra sin6_null.sin6_addr; 5359ff550d0eSmasputra ude6.udp6EntryInfo.ue_RemotePort = 0; 5360ff550d0eSmasputra } 53613173664eSapersson /* 53623173664eSapersson * We make the assumption that all udp_t 53633173664eSapersson * structs will be created within an address 53643173664eSapersson * region no larger than 32-bits. 53653173664eSapersson */ 53663173664eSapersson ude6.udp6Instance = (uint32_t)(uintptr_t)udp; 53673173664eSapersson ude6.udp6CreationProcess = 53683173664eSapersson (udp->udp_open_pid < 0) ? 53693173664eSapersson MIB2_UNKNOWN_PROCESS : 53703173664eSapersson udp->udp_open_pid; 53713173664eSapersson ude6.udp6CreationTime = udp->udp_open_time; 53723173664eSapersson 537345916cd2Sjpk (void) snmp_append_data2(mp6_conn_ctl->b_cont, 5374ff550d0eSmasputra &mp6_conn_tail, (char *)&ude6, 5375ff550d0eSmasputra sizeof (ude6)); 537645916cd2Sjpk mlp.tme_connidx = v6_conn_idx++; 537745916cd2Sjpk if (needattr) 537845916cd2Sjpk (void) snmp_append_data2( 537945916cd2Sjpk mp6_attr_ctl->b_cont, 538045916cd2Sjpk &mp6_attr_tail, (char *)&mlp, 538145916cd2Sjpk sizeof (mlp)); 53827c478bd9Sstevel@tonic-gate } 53837c478bd9Sstevel@tonic-gate } 53847c478bd9Sstevel@tonic-gate } 53857c478bd9Sstevel@tonic-gate 53867c478bd9Sstevel@tonic-gate /* IPv4 UDP endpoints */ 53877c478bd9Sstevel@tonic-gate optp = (struct opthdr *)&mp_conn_ctl->b_rptr[ 53887c478bd9Sstevel@tonic-gate sizeof (struct T_optmgmt_ack)]; 53897c478bd9Sstevel@tonic-gate optp->level = MIB2_UDP; 53907c478bd9Sstevel@tonic-gate optp->name = MIB2_UDP_ENTRY; 539145916cd2Sjpk optp->len = msgdsize(mp_conn_ctl->b_cont); 53927c478bd9Sstevel@tonic-gate qreply(q, mp_conn_ctl); 53937c478bd9Sstevel@tonic-gate 539445916cd2Sjpk /* table of MLP attributes... */ 539545916cd2Sjpk optp = (struct opthdr *)&mp_attr_ctl->b_rptr[ 539645916cd2Sjpk sizeof (struct T_optmgmt_ack)]; 539745916cd2Sjpk optp->level = MIB2_UDP; 539845916cd2Sjpk optp->name = EXPER_XPORT_MLP; 539945916cd2Sjpk optp->len = msgdsize(mp_attr_ctl->b_cont); 540045916cd2Sjpk if (optp->len == 0) 540145916cd2Sjpk freemsg(mp_attr_ctl); 540245916cd2Sjpk else 540345916cd2Sjpk qreply(q, mp_attr_ctl); 540445916cd2Sjpk 54057c478bd9Sstevel@tonic-gate /* IPv6 UDP endpoints */ 54067c478bd9Sstevel@tonic-gate optp = (struct opthdr *)&mp6_conn_ctl->b_rptr[ 54077c478bd9Sstevel@tonic-gate sizeof (struct T_optmgmt_ack)]; 54087c478bd9Sstevel@tonic-gate optp->level = MIB2_UDP6; 54097c478bd9Sstevel@tonic-gate optp->name = MIB2_UDP6_ENTRY; 541045916cd2Sjpk optp->len = msgdsize(mp6_conn_ctl->b_cont); 54117c478bd9Sstevel@tonic-gate qreply(q, mp6_conn_ctl); 54127c478bd9Sstevel@tonic-gate 541345916cd2Sjpk /* table of MLP attributes... */ 541445916cd2Sjpk optp = (struct opthdr *)&mp6_attr_ctl->b_rptr[ 541545916cd2Sjpk sizeof (struct T_optmgmt_ack)]; 541645916cd2Sjpk optp->level = MIB2_UDP6; 541745916cd2Sjpk optp->name = EXPER_XPORT_MLP; 541845916cd2Sjpk optp->len = msgdsize(mp6_attr_ctl->b_cont); 541945916cd2Sjpk if (optp->len == 0) 542045916cd2Sjpk freemsg(mp6_attr_ctl); 542145916cd2Sjpk else 542245916cd2Sjpk qreply(q, mp6_attr_ctl); 542345916cd2Sjpk 5424fc80c0dfSnordmark return (mp2ctl); 54257c478bd9Sstevel@tonic-gate } 54267c478bd9Sstevel@tonic-gate 54277c478bd9Sstevel@tonic-gate /* 54287c478bd9Sstevel@tonic-gate * Return 0 if invalid set request, 1 otherwise, including non-udp requests. 54297c478bd9Sstevel@tonic-gate * NOTE: Per MIB-II, UDP has no writable data. 54307c478bd9Sstevel@tonic-gate * TODO: If this ever actually tries to set anything, it needs to be 54317c478bd9Sstevel@tonic-gate * to do the appropriate locking. 54327c478bd9Sstevel@tonic-gate */ 54337c478bd9Sstevel@tonic-gate /* ARGSUSED */ 5434ff550d0eSmasputra int 54357c478bd9Sstevel@tonic-gate udp_snmp_set(queue_t *q, t_scalar_t level, t_scalar_t name, 54367c478bd9Sstevel@tonic-gate uchar_t *ptr, int len) 54377c478bd9Sstevel@tonic-gate { 54387c478bd9Sstevel@tonic-gate switch (level) { 54397c478bd9Sstevel@tonic-gate case MIB2_UDP: 54407c478bd9Sstevel@tonic-gate return (0); 54417c478bd9Sstevel@tonic-gate default: 54427c478bd9Sstevel@tonic-gate return (1); 54437c478bd9Sstevel@tonic-gate } 54447c478bd9Sstevel@tonic-gate } 54457c478bd9Sstevel@tonic-gate 54467c478bd9Sstevel@tonic-gate static void 54477c478bd9Sstevel@tonic-gate udp_report_item(mblk_t *mp, udp_t *udp) 54487c478bd9Sstevel@tonic-gate { 54497c478bd9Sstevel@tonic-gate char *state; 54507c478bd9Sstevel@tonic-gate char addrbuf1[INET6_ADDRSTRLEN]; 54517c478bd9Sstevel@tonic-gate char addrbuf2[INET6_ADDRSTRLEN]; 54527c478bd9Sstevel@tonic-gate uint_t print_len, buf_len; 54537c478bd9Sstevel@tonic-gate 54547c478bd9Sstevel@tonic-gate buf_len = mp->b_datap->db_lim - mp->b_wptr; 54557c478bd9Sstevel@tonic-gate ASSERT(buf_len >= 0); 54567c478bd9Sstevel@tonic-gate if (buf_len == 0) 54577c478bd9Sstevel@tonic-gate return; 54587c478bd9Sstevel@tonic-gate 54597c478bd9Sstevel@tonic-gate if (udp->udp_state == TS_UNBND) 54607c478bd9Sstevel@tonic-gate state = "UNBOUND"; 54617c478bd9Sstevel@tonic-gate else if (udp->udp_state == TS_IDLE) 54627c478bd9Sstevel@tonic-gate state = "IDLE"; 54637c478bd9Sstevel@tonic-gate else if (udp->udp_state == TS_DATA_XFER) 54647c478bd9Sstevel@tonic-gate state = "CONNECTED"; 54657c478bd9Sstevel@tonic-gate else 54667c478bd9Sstevel@tonic-gate state = "UnkState"; 54677c478bd9Sstevel@tonic-gate print_len = snprintf((char *)mp->b_wptr, buf_len, 54687c478bd9Sstevel@tonic-gate MI_COL_PTRFMT_STR "%4d %5u %s %s %5u %s\n", 5469ff550d0eSmasputra (void *)udp, udp->udp_connp->conn_zoneid, ntohs(udp->udp_port), 5470437220cdSdanmcd inet_ntop(AF_INET6, &udp->udp_v6src, addrbuf1, sizeof (addrbuf1)), 5471437220cdSdanmcd inet_ntop(AF_INET6, &udp->udp_v6dst, addrbuf2, sizeof (addrbuf2)), 54727c478bd9Sstevel@tonic-gate ntohs(udp->udp_dstport), state); 54737c478bd9Sstevel@tonic-gate if (print_len < buf_len) { 54747c478bd9Sstevel@tonic-gate mp->b_wptr += print_len; 54757c478bd9Sstevel@tonic-gate } else { 54767c478bd9Sstevel@tonic-gate mp->b_wptr += buf_len; 54777c478bd9Sstevel@tonic-gate } 54787c478bd9Sstevel@tonic-gate } 54797c478bd9Sstevel@tonic-gate 54807c478bd9Sstevel@tonic-gate /* Report for ndd "udp_status" */ 54817c478bd9Sstevel@tonic-gate /* ARGSUSED */ 54827c478bd9Sstevel@tonic-gate static int 54837c478bd9Sstevel@tonic-gate udp_status_report(queue_t *q, mblk_t *mp, caddr_t cp, cred_t *cr) 54847c478bd9Sstevel@tonic-gate { 54857c478bd9Sstevel@tonic-gate zoneid_t zoneid; 5486ff550d0eSmasputra connf_t *connfp; 5487ff550d0eSmasputra conn_t *connp = Q_TO_CONN(q); 5488ff550d0eSmasputra udp_t *udp = connp->conn_udp; 5489ff550d0eSmasputra int i; 5490f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 5491f4b3ec61Sdh ip_stack_t *ipst = connp->conn_netstack->netstack_ip; 54927c478bd9Sstevel@tonic-gate 54937c478bd9Sstevel@tonic-gate /* 54947c478bd9Sstevel@tonic-gate * Because of the ndd constraint, at most we can have 64K buffer 54957c478bd9Sstevel@tonic-gate * to put in all UDP info. So to be more efficient, just 54967c478bd9Sstevel@tonic-gate * allocate a 64K buffer here, assuming we need that large buffer. 54977c478bd9Sstevel@tonic-gate * This may be a problem as any user can read udp_status. Therefore 5498f4b3ec61Sdh * we limit the rate of doing this using us_ndd_get_info_interval. 54997c478bd9Sstevel@tonic-gate * This should be OK as normal users should not do this too often. 55007c478bd9Sstevel@tonic-gate */ 5501f4b3ec61Sdh if (cr == NULL || secpolicy_ip_config(cr, B_TRUE) != 0) { 5502f4b3ec61Sdh if (ddi_get_lbolt() - us->us_last_ndd_get_info_time < 5503f4b3ec61Sdh drv_usectohz(us->us_ndd_get_info_interval * 1000)) { 55047c478bd9Sstevel@tonic-gate (void) mi_mpprintf(mp, NDD_TOO_QUICK_MSG); 55057c478bd9Sstevel@tonic-gate return (0); 55067c478bd9Sstevel@tonic-gate } 55077c478bd9Sstevel@tonic-gate } 55087c478bd9Sstevel@tonic-gate if ((mp->b_cont = allocb(ND_MAX_BUF_LEN, BPRI_HI)) == NULL) { 55097c478bd9Sstevel@tonic-gate /* The following may work even if we cannot get a large buf. */ 55107c478bd9Sstevel@tonic-gate (void) mi_mpprintf(mp, NDD_OUT_OF_BUF_MSG); 55117c478bd9Sstevel@tonic-gate return (0); 55127c478bd9Sstevel@tonic-gate } 55137c478bd9Sstevel@tonic-gate (void) mi_mpprintf(mp, 55147c478bd9Sstevel@tonic-gate "UDP " MI_COL_HDRPAD_STR 55157c478bd9Sstevel@tonic-gate /* 12345678[89ABCDEF] */ 55167c478bd9Sstevel@tonic-gate " zone lport src addr dest addr port state"); 55177c478bd9Sstevel@tonic-gate /* 1234 12345 xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx 12345 UNBOUND */ 55187c478bd9Sstevel@tonic-gate 5519ff550d0eSmasputra zoneid = connp->conn_zoneid; 55207c478bd9Sstevel@tonic-gate 5521ff550d0eSmasputra for (i = 0; i < CONN_G_HASH_SIZE; i++) { 5522f4b3ec61Sdh connfp = &ipst->ips_ipcl_globalhash_fanout[i]; 5523ff550d0eSmasputra connp = NULL; 55247c478bd9Sstevel@tonic-gate 5525ff550d0eSmasputra while ((connp = ipcl_get_next_conn(connfp, connp, 5526fc80c0dfSnordmark IPCL_UDPCONN))) { 5527ff550d0eSmasputra udp = connp->conn_udp; 5528ff550d0eSmasputra if (zoneid != GLOBAL_ZONEID && 5529ff550d0eSmasputra zoneid != connp->conn_zoneid) 5530ff550d0eSmasputra continue; 55317c478bd9Sstevel@tonic-gate 5532ff550d0eSmasputra udp_report_item(mp->b_cont, udp); 5533ff550d0eSmasputra } 55347c478bd9Sstevel@tonic-gate } 5535f4b3ec61Sdh us->us_last_ndd_get_info_time = ddi_get_lbolt(); 55367c478bd9Sstevel@tonic-gate return (0); 55377c478bd9Sstevel@tonic-gate } 55387c478bd9Sstevel@tonic-gate 55397c478bd9Sstevel@tonic-gate /* 55407c478bd9Sstevel@tonic-gate * This routine creates a T_UDERROR_IND message and passes it upstream. 55417c478bd9Sstevel@tonic-gate * The address and options are copied from the T_UNITDATA_REQ message 55427c478bd9Sstevel@tonic-gate * passed in mp. This message is freed. 55437c478bd9Sstevel@tonic-gate */ 55447c478bd9Sstevel@tonic-gate static void 5545ff550d0eSmasputra udp_ud_err(queue_t *q, mblk_t *mp, uchar_t *destaddr, t_scalar_t destlen, 5546ff550d0eSmasputra t_scalar_t err) 55477c478bd9Sstevel@tonic-gate { 5548ff550d0eSmasputra struct T_unitdata_req *tudr; 55497c478bd9Sstevel@tonic-gate mblk_t *mp1; 5550ff550d0eSmasputra uchar_t *optaddr; 5551ff550d0eSmasputra t_scalar_t optlen; 55527c478bd9Sstevel@tonic-gate 5553ff550d0eSmasputra if (DB_TYPE(mp) == M_DATA) { 5554ff550d0eSmasputra ASSERT(destaddr != NULL && destlen != 0); 5555ff550d0eSmasputra optaddr = NULL; 5556ff550d0eSmasputra optlen = 0; 5557ff550d0eSmasputra } else { 5558ff550d0eSmasputra if ((mp->b_wptr < mp->b_rptr) || 5559ff550d0eSmasputra (MBLKL(mp)) < sizeof (struct T_unitdata_req)) { 5560ff550d0eSmasputra goto done; 5561ff550d0eSmasputra } 5562ff550d0eSmasputra tudr = (struct T_unitdata_req *)mp->b_rptr; 5563ff550d0eSmasputra destaddr = mp->b_rptr + tudr->DEST_offset; 5564ff550d0eSmasputra if (destaddr < mp->b_rptr || destaddr >= mp->b_wptr || 5565ff550d0eSmasputra destaddr + tudr->DEST_length < mp->b_rptr || 5566ff550d0eSmasputra destaddr + tudr->DEST_length > mp->b_wptr) { 5567ff550d0eSmasputra goto done; 5568ff550d0eSmasputra } 5569ff550d0eSmasputra optaddr = mp->b_rptr + tudr->OPT_offset; 5570ff550d0eSmasputra if (optaddr < mp->b_rptr || optaddr >= mp->b_wptr || 5571ff550d0eSmasputra optaddr + tudr->OPT_length < mp->b_rptr || 5572ff550d0eSmasputra optaddr + tudr->OPT_length > mp->b_wptr) { 5573ff550d0eSmasputra goto done; 5574ff550d0eSmasputra } 5575ff550d0eSmasputra destlen = tudr->DEST_length; 5576ff550d0eSmasputra optlen = tudr->OPT_length; 55777c478bd9Sstevel@tonic-gate } 5578ff550d0eSmasputra 5579ff550d0eSmasputra mp1 = mi_tpi_uderror_ind((char *)destaddr, destlen, 5580ff550d0eSmasputra (char *)optaddr, optlen, err); 5581ff550d0eSmasputra if (mp1 != NULL) 5582fc80c0dfSnordmark qreply(q, mp1); 55837c478bd9Sstevel@tonic-gate 55847c478bd9Sstevel@tonic-gate done: 55857c478bd9Sstevel@tonic-gate freemsg(mp); 55867c478bd9Sstevel@tonic-gate } 55877c478bd9Sstevel@tonic-gate 55887c478bd9Sstevel@tonic-gate /* 55897c478bd9Sstevel@tonic-gate * This routine removes a port number association from a stream. It 55907c478bd9Sstevel@tonic-gate * is called by udp_wput to handle T_UNBIND_REQ messages. 55917c478bd9Sstevel@tonic-gate */ 55927c478bd9Sstevel@tonic-gate static void 55937c478bd9Sstevel@tonic-gate udp_unbind(queue_t *q, mblk_t *mp) 55947c478bd9Sstevel@tonic-gate { 5595ff550d0eSmasputra udp_t *udp = Q_TO_UDP(q); 5596fc80c0dfSnordmark udp_fanout_t *udpf; 5597fc80c0dfSnordmark udp_stack_t *us = udp->udp_us; 55987c478bd9Sstevel@tonic-gate 55997c478bd9Sstevel@tonic-gate if (cl_inet_unbind != NULL) { 56007c478bd9Sstevel@tonic-gate /* 56017c478bd9Sstevel@tonic-gate * Running in cluster mode - register unbind information 56027c478bd9Sstevel@tonic-gate */ 56037c478bd9Sstevel@tonic-gate if (udp->udp_ipversion == IPV4_VERSION) { 56047c478bd9Sstevel@tonic-gate (*cl_inet_unbind)(IPPROTO_UDP, AF_INET, 56057c478bd9Sstevel@tonic-gate (uint8_t *)(&V4_PART_OF_V6(udp->udp_v6src)), 56067c478bd9Sstevel@tonic-gate (in_port_t)udp->udp_port); 56077c478bd9Sstevel@tonic-gate } else { 56087c478bd9Sstevel@tonic-gate (*cl_inet_unbind)(IPPROTO_UDP, AF_INET6, 56097c478bd9Sstevel@tonic-gate (uint8_t *)&(udp->udp_v6src), 56107c478bd9Sstevel@tonic-gate (in_port_t)udp->udp_port); 56117c478bd9Sstevel@tonic-gate } 56127c478bd9Sstevel@tonic-gate } 56137c478bd9Sstevel@tonic-gate 5614fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 5615fc80c0dfSnordmark if (udp->udp_state == TS_UNBND || udp->udp_pending_op != -1) { 5616fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 5617fc80c0dfSnordmark udp_err_ack(q, mp, TOUTSTATE, 0); 5618fc80c0dfSnordmark return; 56197c478bd9Sstevel@tonic-gate } 5620fc80c0dfSnordmark udp->udp_pending_op = T_UNBIND_REQ; 5621fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 5622fc80c0dfSnordmark 5623ff550d0eSmasputra /* 5624ff550d0eSmasputra * Pass the unbind to IP; T_UNBIND_REQ is larger than T_OK_ACK 5625ff550d0eSmasputra * and therefore ip_unbind must never return NULL. 5626ff550d0eSmasputra */ 5627ff550d0eSmasputra mp = ip_unbind(q, mp); 5628ff550d0eSmasputra ASSERT(mp != NULL); 5629fc80c0dfSnordmark ASSERT(((struct T_ok_ack *)mp->b_rptr)->PRIM_type == T_OK_ACK); 5630fc80c0dfSnordmark 5631fc80c0dfSnordmark /* 5632fc80c0dfSnordmark * Once we're unbound from IP, the pending operation may be cleared 5633fc80c0dfSnordmark * here. 5634fc80c0dfSnordmark */ 5635fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_WRITER); 5636fc80c0dfSnordmark udpf = &us->us_bind_fanout[UDP_BIND_HASH(udp->udp_port, 5637fc80c0dfSnordmark us->us_bind_fanout_size)]; 5638fc80c0dfSnordmark mutex_enter(&udpf->uf_lock); 5639fc80c0dfSnordmark udp_bind_hash_remove(udp, B_TRUE); 5640fc80c0dfSnordmark V6_SET_ZERO(udp->udp_v6src); 5641fc80c0dfSnordmark V6_SET_ZERO(udp->udp_bound_v6src); 5642fc80c0dfSnordmark udp->udp_port = 0; 5643fc80c0dfSnordmark mutex_exit(&udpf->uf_lock); 5644fc80c0dfSnordmark 5645fc80c0dfSnordmark udp->udp_pending_op = -1; 5646fc80c0dfSnordmark udp->udp_state = TS_UNBND; 5647fc80c0dfSnordmark if (udp->udp_family == AF_INET6) 5648fc80c0dfSnordmark (void) udp_build_hdrs(udp); 5649fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 5650fc80c0dfSnordmark 5651fc80c0dfSnordmark qreply(q, mp); 56527c478bd9Sstevel@tonic-gate } 56537c478bd9Sstevel@tonic-gate 56547c478bd9Sstevel@tonic-gate /* 56557c478bd9Sstevel@tonic-gate * Don't let port fall into the privileged range. 565645916cd2Sjpk * Since the extra privileged ports can be arbitrary we also 56577c478bd9Sstevel@tonic-gate * ensure that we exclude those from consideration. 5658f4b3ec61Sdh * us->us_epriv_ports is not sorted thus we loop over it until 56597c478bd9Sstevel@tonic-gate * there are no changes. 56607c478bd9Sstevel@tonic-gate */ 56617c478bd9Sstevel@tonic-gate static in_port_t 566245916cd2Sjpk udp_update_next_port(udp_t *udp, in_port_t port, boolean_t random) 56637c478bd9Sstevel@tonic-gate { 56647c478bd9Sstevel@tonic-gate int i; 566545916cd2Sjpk in_port_t nextport; 566645916cd2Sjpk boolean_t restart = B_FALSE; 5667f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 56687c478bd9Sstevel@tonic-gate 56697c478bd9Sstevel@tonic-gate if (random && udp_random_anon_port != 0) { 56707c478bd9Sstevel@tonic-gate (void) random_get_pseudo_bytes((uint8_t *)&port, 56717c478bd9Sstevel@tonic-gate sizeof (in_port_t)); 56727c478bd9Sstevel@tonic-gate /* 56737c478bd9Sstevel@tonic-gate * Unless changed by a sys admin, the smallest anon port 56747c478bd9Sstevel@tonic-gate * is 32768 and the largest anon port is 65535. It is 56757c478bd9Sstevel@tonic-gate * very likely (50%) for the random port to be smaller 56767c478bd9Sstevel@tonic-gate * than the smallest anon port. When that happens, 56777c478bd9Sstevel@tonic-gate * add port % (anon port range) to the smallest anon 56787c478bd9Sstevel@tonic-gate * port to get the random port. It should fall into the 56797c478bd9Sstevel@tonic-gate * valid anon port range. 56807c478bd9Sstevel@tonic-gate */ 5681f4b3ec61Sdh if (port < us->us_smallest_anon_port) { 5682f4b3ec61Sdh port = us->us_smallest_anon_port + 5683f4b3ec61Sdh port % (us->us_largest_anon_port - 5684f4b3ec61Sdh us->us_smallest_anon_port); 56857c478bd9Sstevel@tonic-gate } 56867c478bd9Sstevel@tonic-gate } 56877c478bd9Sstevel@tonic-gate 56887c478bd9Sstevel@tonic-gate retry: 5689f4b3ec61Sdh if (port < us->us_smallest_anon_port) 5690f4b3ec61Sdh port = us->us_smallest_anon_port; 56917c478bd9Sstevel@tonic-gate 5692f4b3ec61Sdh if (port > us->us_largest_anon_port) { 5693f4b3ec61Sdh port = us->us_smallest_anon_port; 569445916cd2Sjpk if (restart) 569545916cd2Sjpk return (0); 569645916cd2Sjpk restart = B_TRUE; 569745916cd2Sjpk } 569845916cd2Sjpk 5699f4b3ec61Sdh if (port < us->us_smallest_nonpriv_port) 5700f4b3ec61Sdh port = us->us_smallest_nonpriv_port; 57017c478bd9Sstevel@tonic-gate 5702f4b3ec61Sdh for (i = 0; i < us->us_num_epriv_ports; i++) { 5703f4b3ec61Sdh if (port == us->us_epriv_ports[i]) { 57047c478bd9Sstevel@tonic-gate port++; 57057c478bd9Sstevel@tonic-gate /* 57067c478bd9Sstevel@tonic-gate * Make sure that the port is in the 57077c478bd9Sstevel@tonic-gate * valid range. 57087c478bd9Sstevel@tonic-gate */ 57097c478bd9Sstevel@tonic-gate goto retry; 57107c478bd9Sstevel@tonic-gate } 57117c478bd9Sstevel@tonic-gate } 571245916cd2Sjpk 571345916cd2Sjpk if (is_system_labeled() && 571445916cd2Sjpk (nextport = tsol_next_port(crgetzone(udp->udp_connp->conn_cred), 571545916cd2Sjpk port, IPPROTO_UDP, B_TRUE)) != 0) { 571645916cd2Sjpk port = nextport; 571745916cd2Sjpk goto retry; 571845916cd2Sjpk } 571945916cd2Sjpk 57207c478bd9Sstevel@tonic-gate return (port); 57217c478bd9Sstevel@tonic-gate } 57227c478bd9Sstevel@tonic-gate 572345916cd2Sjpk static int 572445916cd2Sjpk udp_update_label(queue_t *wq, mblk_t *mp, ipaddr_t dst) 572545916cd2Sjpk { 572645916cd2Sjpk int err; 572745916cd2Sjpk uchar_t opt_storage[IP_MAX_OPT_LENGTH]; 572845916cd2Sjpk udp_t *udp = Q_TO_UDP(wq); 5729fc80c0dfSnordmark udp_stack_t *us = udp->udp_us; 573045916cd2Sjpk 573145916cd2Sjpk err = tsol_compute_label(DB_CREDDEF(mp, udp->udp_connp->conn_cred), dst, 5732f4b3ec61Sdh opt_storage, udp->udp_mac_exempt, 5733fc80c0dfSnordmark us->us_netstack->netstack_ip); 573445916cd2Sjpk if (err == 0) { 573545916cd2Sjpk err = tsol_update_options(&udp->udp_ip_snd_options, 573645916cd2Sjpk &udp->udp_ip_snd_options_len, &udp->udp_label_len, 573745916cd2Sjpk opt_storage); 573845916cd2Sjpk } 573945916cd2Sjpk if (err != 0) { 574045916cd2Sjpk DTRACE_PROBE4( 574145916cd2Sjpk tx__ip__log__info__updatelabel__udp, 574245916cd2Sjpk char *, "queue(1) failed to update options(2) on mp(3)", 574345916cd2Sjpk queue_t *, wq, char *, opt_storage, mblk_t *, mp); 574445916cd2Sjpk } else { 574545916cd2Sjpk IN6_IPADDR_TO_V4MAPPED(dst, &udp->udp_v6lastdst); 574645916cd2Sjpk } 574745916cd2Sjpk return (err); 574845916cd2Sjpk } 574945916cd2Sjpk 5750ff550d0eSmasputra static mblk_t * 5751ff550d0eSmasputra udp_output_v4(conn_t *connp, mblk_t *mp, ipaddr_t v4dst, uint16_t port, 5752437220cdSdanmcd uint_t srcid, int *error, boolean_t insert_spi) 57537c478bd9Sstevel@tonic-gate { 5754ff550d0eSmasputra udp_t *udp = connp->conn_udp; 5755ff550d0eSmasputra queue_t *q = connp->conn_wq; 575645916cd2Sjpk mblk_t *mp1 = mp; 5757ff550d0eSmasputra mblk_t *mp2; 5758ff550d0eSmasputra ipha_t *ipha; 5759ff550d0eSmasputra int ip_hdr_length; 5760ff550d0eSmasputra uint32_t ip_len; 5761ff550d0eSmasputra udpha_t *udpha; 5762fc80c0dfSnordmark boolean_t lock_held = B_FALSE; 5763fc80c0dfSnordmark in_port_t uha_src_port; 576445916cd2Sjpk udpattrs_t attrs; 5765dc3879f9Sjarrett uchar_t ip_snd_opt[IP_MAX_OPT_LENGTH]; 5766dc3879f9Sjarrett uint32_t ip_snd_opt_len = 0; 576719a30e1aSrshoaib ip4_pkt_t pktinfo; 576819a30e1aSrshoaib ip4_pkt_t *pktinfop = &pktinfo; 576919a30e1aSrshoaib ip_opt_info_t optinfo; 5770f4b3ec61Sdh ip_stack_t *ipst = connp->conn_netstack->netstack_ip; 5771f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 5772f4b3ec61Sdh ipsec_stack_t *ipss = ipst->ips_netstack->netstack_ipsec; 577319a30e1aSrshoaib 57747c478bd9Sstevel@tonic-gate 5775ff550d0eSmasputra *error = 0; 577619a30e1aSrshoaib pktinfop->ip4_ill_index = 0; 577719a30e1aSrshoaib pktinfop->ip4_addr = INADDR_ANY; 577819a30e1aSrshoaib optinfo.ip_opt_flags = 0; 577919a30e1aSrshoaib optinfo.ip_opt_ill_index = 0; 57807c478bd9Sstevel@tonic-gate 578145916cd2Sjpk if (v4dst == INADDR_ANY) 578245916cd2Sjpk v4dst = htonl(INADDR_LOOPBACK); 578345916cd2Sjpk 578445916cd2Sjpk /* 578545916cd2Sjpk * If options passed in, feed it for verification and handling 578645916cd2Sjpk */ 578745916cd2Sjpk attrs.udpattr_credset = B_FALSE; 578845916cd2Sjpk if (DB_TYPE(mp) != M_DATA) { 578945916cd2Sjpk mp1 = mp->b_cont; 579045916cd2Sjpk if (((struct T_unitdata_req *)mp->b_rptr)->OPT_length != 0) { 579119a30e1aSrshoaib attrs.udpattr_ipp4 = pktinfop; 579245916cd2Sjpk attrs.udpattr_mb = mp; 579345916cd2Sjpk if (udp_unitdata_opt_process(q, mp, error, &attrs) < 0) 579445916cd2Sjpk goto done; 579545916cd2Sjpk /* 579645916cd2Sjpk * Note: success in processing options. 579745916cd2Sjpk * mp option buffer represented by 579845916cd2Sjpk * OPT_length/offset now potentially modified 579945916cd2Sjpk * and contain option setting results 580045916cd2Sjpk */ 580145916cd2Sjpk ASSERT(*error == 0); 580245916cd2Sjpk } 580345916cd2Sjpk } 580445916cd2Sjpk 5805ff550d0eSmasputra /* mp1 points to the M_DATA mblk carrying the packet */ 5806ff550d0eSmasputra ASSERT(mp1 != NULL && DB_TYPE(mp1) == M_DATA); 58077c478bd9Sstevel@tonic-gate 5808fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_READER); 5809fc80c0dfSnordmark lock_held = B_TRUE; 5810dc3879f9Sjarrett /* 581103986916Sjarrett * Check if our saved options are valid; update if not. 5812dc3879f9Sjarrett * TSOL Note: Since we are not in WRITER mode, UDP packets 581303986916Sjarrett * to different destination may require different labels, 581403986916Sjarrett * or worse, UDP packets to same IP address may require 581503986916Sjarrett * different labels due to use of shared all-zones address. 5816dc3879f9Sjarrett * We use conn_lock to ensure that lastdst, ip_snd_options, 5817dc3879f9Sjarrett * and ip_snd_options_len are consistent for the current 5818dc3879f9Sjarrett * destination and are updated atomically. 5819dc3879f9Sjarrett */ 5820dc3879f9Sjarrett mutex_enter(&connp->conn_lock); 582145916cd2Sjpk if (is_system_labeled()) { 582245916cd2Sjpk /* Using UDP MLP requires SCM_UCRED from user */ 582345916cd2Sjpk if (connp->conn_mlp_type != mlptSingle && 582445916cd2Sjpk !attrs.udpattr_credset) { 5825dc3879f9Sjarrett mutex_exit(&connp->conn_lock); 582645916cd2Sjpk DTRACE_PROBE4( 582745916cd2Sjpk tx__ip__log__info__output__udp, 582845916cd2Sjpk char *, "MLP mp(1) lacks SCM_UCRED attr(2) on q(3)", 582945916cd2Sjpk mblk_t *, mp1, udpattrs_t *, &attrs, queue_t *, q); 583045916cd2Sjpk *error = ECONNREFUSED; 583145916cd2Sjpk goto done; 583245916cd2Sjpk } 583303986916Sjarrett /* 583403986916Sjarrett * update label option for this UDP socket if 583503986916Sjarrett * - the destination has changed, or 583603986916Sjarrett * - the UDP socket is MLP 583703986916Sjarrett */ 583845916cd2Sjpk if ((!IN6_IS_ADDR_V4MAPPED(&udp->udp_v6lastdst) || 583903986916Sjarrett V4_PART_OF_V6(udp->udp_v6lastdst) != v4dst || 584003986916Sjarrett connp->conn_mlp_type != mlptSingle) && 5841dc3879f9Sjarrett (*error = udp_update_label(q, mp, v4dst)) != 0) { 5842dc3879f9Sjarrett mutex_exit(&connp->conn_lock); 584345916cd2Sjpk goto done; 5844dc3879f9Sjarrett } 584545916cd2Sjpk } 5846dc3879f9Sjarrett if (udp->udp_ip_snd_options_len > 0) { 5847dc3879f9Sjarrett ip_snd_opt_len = udp->udp_ip_snd_options_len; 5848dc3879f9Sjarrett bcopy(udp->udp_ip_snd_options, ip_snd_opt, ip_snd_opt_len); 5849dc3879f9Sjarrett } 5850dc3879f9Sjarrett mutex_exit(&connp->conn_lock); 585145916cd2Sjpk 5852ff550d0eSmasputra /* Add an IP header */ 5853437220cdSdanmcd ip_hdr_length = IP_SIMPLE_HDR_LENGTH + UDPH_SIZE + ip_snd_opt_len + 5854437220cdSdanmcd (insert_spi ? sizeof (uint32_t) : 0); 5855ff550d0eSmasputra ipha = (ipha_t *)&mp1->b_rptr[-ip_hdr_length]; 5856ff550d0eSmasputra if (DB_REF(mp1) != 1 || (uchar_t *)ipha < DB_BASE(mp1) || 5857ff550d0eSmasputra !OK_32PTR(ipha)) { 5858f4b3ec61Sdh mp2 = allocb(ip_hdr_length + us->us_wroff_extra, BPRI_LO); 5859ff550d0eSmasputra if (mp2 == NULL) { 5860ff550d0eSmasputra TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_END, 5861ff550d0eSmasputra "udp_wput_end: q %p (%S)", q, "allocbfail2"); 5862ff550d0eSmasputra *error = ENOMEM; 5863ff550d0eSmasputra goto done; 5864ff550d0eSmasputra } 5865ff550d0eSmasputra mp2->b_wptr = DB_LIM(mp2); 5866ff550d0eSmasputra mp2->b_cont = mp1; 5867ff550d0eSmasputra mp1 = mp2; 5868ff550d0eSmasputra if (DB_TYPE(mp) != M_DATA) 5869ff550d0eSmasputra mp->b_cont = mp1; 5870ff550d0eSmasputra else 5871ff550d0eSmasputra mp = mp1; 58727c478bd9Sstevel@tonic-gate 5873ff550d0eSmasputra ipha = (ipha_t *)(mp1->b_wptr - ip_hdr_length); 58747c478bd9Sstevel@tonic-gate } 5875437220cdSdanmcd ip_hdr_length -= (UDPH_SIZE + (insert_spi ? sizeof (uint32_t) : 0)); 5876ff550d0eSmasputra #ifdef _BIG_ENDIAN 5877ff550d0eSmasputra /* Set version, header length, and tos */ 5878ff550d0eSmasputra *(uint16_t *)&ipha->ipha_version_and_hdr_length = 5879ff550d0eSmasputra ((((IP_VERSION << 4) | (ip_hdr_length>>2)) << 8) | 5880437220cdSdanmcd udp->udp_type_of_service); 5881ff550d0eSmasputra /* Set ttl and protocol */ 5882ff550d0eSmasputra *(uint16_t *)&ipha->ipha_ttl = (udp->udp_ttl << 8) | IPPROTO_UDP; 5883ff550d0eSmasputra #else 5884ff550d0eSmasputra /* Set version, header length, and tos */ 5885ff550d0eSmasputra *(uint16_t *)&ipha->ipha_version_and_hdr_length = 5886437220cdSdanmcd ((udp->udp_type_of_service << 8) | 5887437220cdSdanmcd ((IP_VERSION << 4) | (ip_hdr_length>>2))); 5888ff550d0eSmasputra /* Set ttl and protocol */ 5889ff550d0eSmasputra *(uint16_t *)&ipha->ipha_ttl = (IPPROTO_UDP << 8) | udp->udp_ttl; 5890ff550d0eSmasputra #endif 589119a30e1aSrshoaib if (pktinfop->ip4_addr != INADDR_ANY) { 589219a30e1aSrshoaib ipha->ipha_src = pktinfop->ip4_addr; 589319a30e1aSrshoaib optinfo.ip_opt_flags = IP_VERIFY_SRC; 589419a30e1aSrshoaib } else { 589519a30e1aSrshoaib /* 589619a30e1aSrshoaib * Copy our address into the packet. If this is zero, 589719a30e1aSrshoaib * first look at __sin6_src_id for a hint. If we leave the 589819a30e1aSrshoaib * source as INADDR_ANY then ip will fill in the real source 589919a30e1aSrshoaib * address. 590019a30e1aSrshoaib */ 590119a30e1aSrshoaib IN6_V4MAPPED_TO_IPADDR(&udp->udp_v6src, ipha->ipha_src); 590219a30e1aSrshoaib if (srcid != 0 && ipha->ipha_src == INADDR_ANY) { 590319a30e1aSrshoaib in6_addr_t v6src; 59047c478bd9Sstevel@tonic-gate 5905f4b3ec61Sdh ip_srcid_find_id(srcid, &v6src, connp->conn_zoneid, 5906f4b3ec61Sdh us->us_netstack); 590719a30e1aSrshoaib IN6_V4MAPPED_TO_IPADDR(&v6src, ipha->ipha_src); 590819a30e1aSrshoaib } 590919a30e1aSrshoaib } 5910fc80c0dfSnordmark uha_src_port = udp->udp_port; 5911fc80c0dfSnordmark if (ip_hdr_length == IP_SIMPLE_HDR_LENGTH) { 5912fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 5913fc80c0dfSnordmark lock_held = B_FALSE; 5914fc80c0dfSnordmark } 591519a30e1aSrshoaib 591619a30e1aSrshoaib if (pktinfop->ip4_ill_index != 0) { 591719a30e1aSrshoaib optinfo.ip_opt_ill_index = pktinfop->ip4_ill_index; 59187c478bd9Sstevel@tonic-gate } 59197c478bd9Sstevel@tonic-gate 5920ff550d0eSmasputra ipha->ipha_fragment_offset_and_flags = 0; 5921ff550d0eSmasputra ipha->ipha_ident = 0; 59227c478bd9Sstevel@tonic-gate 5923ff550d0eSmasputra mp1->b_rptr = (uchar_t *)ipha; 59247c478bd9Sstevel@tonic-gate 59257c478bd9Sstevel@tonic-gate ASSERT((uintptr_t)(mp1->b_wptr - (uchar_t *)ipha) <= 59267c478bd9Sstevel@tonic-gate (uintptr_t)UINT_MAX); 59277c478bd9Sstevel@tonic-gate 59287c478bd9Sstevel@tonic-gate /* Determine length of packet */ 59297c478bd9Sstevel@tonic-gate ip_len = (uint32_t)(mp1->b_wptr - (uchar_t *)ipha); 5930ff550d0eSmasputra if ((mp2 = mp1->b_cont) != NULL) { 5931ff550d0eSmasputra do { 5932ff550d0eSmasputra ASSERT((uintptr_t)MBLKL(mp2) <= (uintptr_t)UINT_MAX); 5933ff550d0eSmasputra ip_len += (uint32_t)MBLKL(mp2); 5934ff550d0eSmasputra } while ((mp2 = mp2->b_cont) != NULL); 59357c478bd9Sstevel@tonic-gate } 59367c478bd9Sstevel@tonic-gate /* 59377c478bd9Sstevel@tonic-gate * If the size of the packet is greater than the maximum allowed by 59387c478bd9Sstevel@tonic-gate * ip, return an error. Passing this down could cause panics because 59397c478bd9Sstevel@tonic-gate * the size will have wrapped and be inconsistent with the msg size. 59407c478bd9Sstevel@tonic-gate */ 59417c478bd9Sstevel@tonic-gate if (ip_len > IP_MAXPACKET) { 59427c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_END, 59437c478bd9Sstevel@tonic-gate "udp_wput_end: q %p (%S)", q, "IP length exceeded"); 5944ff550d0eSmasputra *error = EMSGSIZE; 5945ff550d0eSmasputra goto done; 59467c478bd9Sstevel@tonic-gate } 59477c478bd9Sstevel@tonic-gate ipha->ipha_length = htons((uint16_t)ip_len); 59487c478bd9Sstevel@tonic-gate ip_len -= ip_hdr_length; 59497c478bd9Sstevel@tonic-gate ip_len = htons((uint16_t)ip_len); 59507c478bd9Sstevel@tonic-gate udpha = (udpha_t *)(((uchar_t *)ipha) + ip_hdr_length); 5951ff550d0eSmasputra 5952437220cdSdanmcd /* Insert all-0s SPI now. */ 5953437220cdSdanmcd if (insert_spi) 5954437220cdSdanmcd *((uint32_t *)(udpha + 1)) = 0; 5955437220cdSdanmcd 59567c478bd9Sstevel@tonic-gate /* 5957ff550d0eSmasputra * Copy in the destination address 59587c478bd9Sstevel@tonic-gate */ 595945916cd2Sjpk ipha->ipha_dst = v4dst; 59607c478bd9Sstevel@tonic-gate 59617c478bd9Sstevel@tonic-gate /* 59627c478bd9Sstevel@tonic-gate * Set ttl based on IP_MULTICAST_TTL to match IPv6 logic. 59637c478bd9Sstevel@tonic-gate */ 59647c478bd9Sstevel@tonic-gate if (CLASSD(v4dst)) 59657c478bd9Sstevel@tonic-gate ipha->ipha_ttl = udp->udp_multicast_ttl; 59667c478bd9Sstevel@tonic-gate 59677c478bd9Sstevel@tonic-gate udpha->uha_dst_port = port; 5968fc80c0dfSnordmark udpha->uha_src_port = uha_src_port; 59697c478bd9Sstevel@tonic-gate 5970437220cdSdanmcd if (ip_snd_opt_len > 0) { 59717c478bd9Sstevel@tonic-gate uint32_t cksum; 59727c478bd9Sstevel@tonic-gate 5973dc3879f9Sjarrett bcopy(ip_snd_opt, &ipha[1], ip_snd_opt_len); 5974fc80c0dfSnordmark lock_held = B_FALSE; 5975fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 59767c478bd9Sstevel@tonic-gate /* 59777c478bd9Sstevel@tonic-gate * Massage source route putting first source route in ipha_dst. 59787c478bd9Sstevel@tonic-gate * Ignore the destination in T_unitdata_req. 59797c478bd9Sstevel@tonic-gate * Create a checksum adjustment for a source route, if any. 59807c478bd9Sstevel@tonic-gate */ 5981f4b3ec61Sdh cksum = ip_massage_options(ipha, us->us_netstack); 59827c478bd9Sstevel@tonic-gate cksum = (cksum & 0xFFFF) + (cksum >> 16); 59837c478bd9Sstevel@tonic-gate cksum -= ((ipha->ipha_dst >> 16) & 0xFFFF) + 59847c478bd9Sstevel@tonic-gate (ipha->ipha_dst & 0xFFFF); 59857c478bd9Sstevel@tonic-gate if ((int)cksum < 0) 59867c478bd9Sstevel@tonic-gate cksum--; 59877c478bd9Sstevel@tonic-gate cksum = (cksum & 0xFFFF) + (cksum >> 16); 59887c478bd9Sstevel@tonic-gate /* 59897c478bd9Sstevel@tonic-gate * IP does the checksum if uha_checksum is non-zero, 59907c478bd9Sstevel@tonic-gate * We make it easy for IP to include our pseudo header 59917c478bd9Sstevel@tonic-gate * by putting our length in uha_checksum. 59927c478bd9Sstevel@tonic-gate */ 59937c478bd9Sstevel@tonic-gate cksum += ip_len; 59947c478bd9Sstevel@tonic-gate cksum = (cksum & 0xFFFF) + (cksum >> 16); 59957c478bd9Sstevel@tonic-gate /* There might be a carry. */ 59967c478bd9Sstevel@tonic-gate cksum = (cksum & 0xFFFF) + (cksum >> 16); 59977c478bd9Sstevel@tonic-gate #ifdef _LITTLE_ENDIAN 5998f4b3ec61Sdh if (us->us_do_checksum) 59997c478bd9Sstevel@tonic-gate ip_len = (cksum << 16) | ip_len; 60007c478bd9Sstevel@tonic-gate #else 6001f4b3ec61Sdh if (us->us_do_checksum) 60027c478bd9Sstevel@tonic-gate ip_len = (ip_len << 16) | cksum; 60037c478bd9Sstevel@tonic-gate else 60047c478bd9Sstevel@tonic-gate ip_len <<= 16; 60057c478bd9Sstevel@tonic-gate #endif 60067c478bd9Sstevel@tonic-gate } else { 60077c478bd9Sstevel@tonic-gate /* 60087c478bd9Sstevel@tonic-gate * IP does the checksum if uha_checksum is non-zero, 60097c478bd9Sstevel@tonic-gate * We make it easy for IP to include our pseudo header 60107c478bd9Sstevel@tonic-gate * by putting our length in uha_checksum. 60117c478bd9Sstevel@tonic-gate */ 6012f4b3ec61Sdh if (us->us_do_checksum) 60137c478bd9Sstevel@tonic-gate ip_len |= (ip_len << 16); 60147c478bd9Sstevel@tonic-gate #ifndef _LITTLE_ENDIAN 60157c478bd9Sstevel@tonic-gate else 60167c478bd9Sstevel@tonic-gate ip_len <<= 16; 60177c478bd9Sstevel@tonic-gate #endif 60187c478bd9Sstevel@tonic-gate } 6019fc80c0dfSnordmark ASSERT(!lock_held); 60207c478bd9Sstevel@tonic-gate /* Set UDP length and checksum */ 60217c478bd9Sstevel@tonic-gate *((uint32_t *)&udpha->uha_length) = ip_len; 602245916cd2Sjpk if (DB_CRED(mp) != NULL) 602345916cd2Sjpk mblk_setcred(mp1, DB_CRED(mp)); 60247c478bd9Sstevel@tonic-gate 6025ff550d0eSmasputra if (DB_TYPE(mp) != M_DATA) { 6026ff550d0eSmasputra ASSERT(mp != mp1); 6027ff550d0eSmasputra freeb(mp); 6028ff550d0eSmasputra } 6029ff550d0eSmasputra 6030ff550d0eSmasputra /* mp has been consumed and we'll return success */ 6031ff550d0eSmasputra ASSERT(*error == 0); 6032ff550d0eSmasputra mp = NULL; 60337c478bd9Sstevel@tonic-gate 60347c478bd9Sstevel@tonic-gate /* We're done. Pass the packet to ip. */ 6035fc80c0dfSnordmark BUMP_MIB(&us->us_udp_mib, udpHCOutDatagrams); 60367c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_END, 6037437220cdSdanmcd "udp_wput_end: q %p (%S)", q, "end"); 6038ff550d0eSmasputra 6039ff550d0eSmasputra if ((connp->conn_flags & IPCL_CHECK_POLICY) != 0 || 6040f4b3ec61Sdh CONN_OUTBOUND_POLICY_PRESENT(connp, ipss) || 6041e704a8f2Smeem connp->conn_dontroute || 6042ff550d0eSmasputra connp->conn_nofailover_ill != NULL || 604319a30e1aSrshoaib connp->conn_outgoing_ill != NULL || optinfo.ip_opt_flags != 0 || 604419a30e1aSrshoaib optinfo.ip_opt_ill_index != 0 || 6045ff550d0eSmasputra ipha->ipha_version_and_hdr_length != IP_SIMPLE_HDR_VERSION || 6046f4b3ec61Sdh IPP_ENABLED(IPP_LOCAL_OUT, ipst) || 6047f4b3ec61Sdh ipst->ips_ip_g_mrouter != NULL) { 6048f4b3ec61Sdh UDP_STAT(us, udp_ip_send); 604919a30e1aSrshoaib ip_output_options(connp, mp1, connp->conn_wq, IP_WPUT, 605019a30e1aSrshoaib &optinfo); 6051ff550d0eSmasputra } else { 6052ff550d0eSmasputra udp_send_data(udp, connp->conn_wq, mp1, ipha); 6053ff550d0eSmasputra } 6054ff550d0eSmasputra 6055ff550d0eSmasputra done: 6056fc80c0dfSnordmark if (lock_held) 6057fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 6058ff550d0eSmasputra if (*error != 0) { 6059ff550d0eSmasputra ASSERT(mp != NULL); 6060fc80c0dfSnordmark BUMP_MIB(&us->us_udp_mib, udpOutErrors); 6061ff550d0eSmasputra } 6062ff550d0eSmasputra return (mp); 6063ff550d0eSmasputra } 6064ff550d0eSmasputra 6065ff550d0eSmasputra static void 6066ff550d0eSmasputra udp_send_data(udp_t *udp, queue_t *q, mblk_t *mp, ipha_t *ipha) 6067ff550d0eSmasputra { 6068ff550d0eSmasputra conn_t *connp = udp->udp_connp; 6069ff550d0eSmasputra ipaddr_t src, dst; 6070ff550d0eSmasputra ire_t *ire; 6071ff550d0eSmasputra ipif_t *ipif = NULL; 6072ff550d0eSmasputra mblk_t *ire_fp_mp; 6073ff550d0eSmasputra boolean_t retry_caching; 6074f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 6075f4b3ec61Sdh ip_stack_t *ipst = connp->conn_netstack->netstack_ip; 6076ff550d0eSmasputra 6077ff550d0eSmasputra dst = ipha->ipha_dst; 6078ff550d0eSmasputra src = ipha->ipha_src; 6079ff550d0eSmasputra ASSERT(ipha->ipha_ident == 0); 6080ff550d0eSmasputra 6081ff550d0eSmasputra if (CLASSD(dst)) { 6082ff550d0eSmasputra int err; 6083ff550d0eSmasputra 6084ff550d0eSmasputra ipif = conn_get_held_ipif(connp, 6085ff550d0eSmasputra &connp->conn_multicast_ipif, &err); 6086ff550d0eSmasputra 6087ff550d0eSmasputra if (ipif == NULL || ipif->ipif_isv6 || 6088ff550d0eSmasputra (ipif->ipif_ill->ill_phyint->phyint_flags & 6089ff550d0eSmasputra PHYI_LOOPBACK)) { 6090ff550d0eSmasputra if (ipif != NULL) 6091ff550d0eSmasputra ipif_refrele(ipif); 6092f4b3ec61Sdh UDP_STAT(us, udp_ip_send); 6093ff550d0eSmasputra ip_output(connp, mp, q, IP_WPUT); 6094ff550d0eSmasputra return; 6095ff550d0eSmasputra } 6096ff550d0eSmasputra } 6097ff550d0eSmasputra 6098ff550d0eSmasputra retry_caching = B_FALSE; 6099ff550d0eSmasputra mutex_enter(&connp->conn_lock); 6100ff550d0eSmasputra ire = connp->conn_ire_cache; 6101ff550d0eSmasputra ASSERT(!(connp->conn_state_flags & CONN_INCIPIENT)); 6102ff550d0eSmasputra 6103ff550d0eSmasputra if (ire == NULL || ire->ire_addr != dst || 6104ff550d0eSmasputra (ire->ire_marks & IRE_MARK_CONDEMNED)) { 6105ff550d0eSmasputra retry_caching = B_TRUE; 6106ff550d0eSmasputra } else if (CLASSD(dst) && (ire->ire_type & IRE_CACHE)) { 6107ff550d0eSmasputra ill_t *stq_ill = (ill_t *)ire->ire_stq->q_ptr; 6108ff550d0eSmasputra 6109ff550d0eSmasputra ASSERT(ipif != NULL); 6110ff550d0eSmasputra if (stq_ill != ipif->ipif_ill && (stq_ill->ill_group == NULL || 6111ff550d0eSmasputra stq_ill->ill_group != ipif->ipif_ill->ill_group)) 6112ff550d0eSmasputra retry_caching = B_TRUE; 6113ff550d0eSmasputra } 6114ff550d0eSmasputra 6115ff550d0eSmasputra if (!retry_caching) { 6116ff550d0eSmasputra ASSERT(ire != NULL); 6117ff550d0eSmasputra IRE_REFHOLD(ire); 6118ff550d0eSmasputra mutex_exit(&connp->conn_lock); 6119ff550d0eSmasputra } else { 6120ff550d0eSmasputra boolean_t cached = B_FALSE; 6121ff550d0eSmasputra 6122ff550d0eSmasputra connp->conn_ire_cache = NULL; 6123ff550d0eSmasputra mutex_exit(&connp->conn_lock); 6124ff550d0eSmasputra 6125ff550d0eSmasputra /* Release the old ire */ 6126ff550d0eSmasputra if (ire != NULL) { 6127ff550d0eSmasputra IRE_REFRELE_NOTR(ire); 6128ff550d0eSmasputra ire = NULL; 6129ff550d0eSmasputra } 6130ff550d0eSmasputra 6131ff550d0eSmasputra if (CLASSD(dst)) { 6132ff550d0eSmasputra ASSERT(ipif != NULL); 6133ff550d0eSmasputra ire = ire_ctable_lookup(dst, 0, 0, ipif, 613445916cd2Sjpk connp->conn_zoneid, MBLK_GETLABEL(mp), 6135f4b3ec61Sdh MATCH_IRE_ILL_GROUP, ipst); 6136ff550d0eSmasputra } else { 6137ff550d0eSmasputra ASSERT(ipif == NULL); 613845916cd2Sjpk ire = ire_cache_lookup(dst, connp->conn_zoneid, 6139f4b3ec61Sdh MBLK_GETLABEL(mp), ipst); 6140ff550d0eSmasputra } 6141ff550d0eSmasputra 6142ff550d0eSmasputra if (ire == NULL) { 6143ff550d0eSmasputra if (ipif != NULL) 6144ff550d0eSmasputra ipif_refrele(ipif); 6145f4b3ec61Sdh UDP_STAT(us, udp_ire_null); 6146ff550d0eSmasputra ip_output(connp, mp, q, IP_WPUT); 6147ff550d0eSmasputra return; 6148ff550d0eSmasputra } 6149ff550d0eSmasputra IRE_REFHOLD_NOTR(ire); 6150ff550d0eSmasputra 6151ff550d0eSmasputra mutex_enter(&connp->conn_lock); 61529a09d68dSja if (CONN_CACHE_IRE(connp) && connp->conn_ire_cache == NULL && 61539a09d68dSja !(ire->ire_marks & IRE_MARK_CONDEMNED)) { 61549a09d68dSja irb_t *irb = ire->ire_bucket; 61559a09d68dSja 61569a09d68dSja /* 61579a09d68dSja * IRE's created for non-connection oriented transports 61589a09d68dSja * are normally initialized with IRE_MARK_TEMPORARY set 61599a09d68dSja * in the ire_marks. These IRE's are preferentially 61609a09d68dSja * reaped when the hash chain length in the cache 61619a09d68dSja * bucket exceeds the maximum value specified in 61629a09d68dSja * ip[6]_ire_max_bucket_cnt. This can severely affect 61639a09d68dSja * UDP performance if IRE cache entries that we need 61649a09d68dSja * to reuse are continually removed. To remedy this, 61659a09d68dSja * when we cache the IRE in the conn_t, we remove the 61669a09d68dSja * IRE_MARK_TEMPORARY bit from the ire_marks if it was 61679a09d68dSja * set. 61689a09d68dSja */ 61699a09d68dSja if (ire->ire_marks & IRE_MARK_TEMPORARY) { 61709a09d68dSja rw_enter(&irb->irb_lock, RW_WRITER); 61719a09d68dSja if (ire->ire_marks & IRE_MARK_TEMPORARY) { 61729a09d68dSja ire->ire_marks &= ~IRE_MARK_TEMPORARY; 61739a09d68dSja irb->irb_tmp_ire_cnt--; 61749a09d68dSja } 61759a09d68dSja rw_exit(&irb->irb_lock); 6176ff550d0eSmasputra } 61779a09d68dSja connp->conn_ire_cache = ire; 61789a09d68dSja cached = B_TRUE; 6179ff550d0eSmasputra } 6180ff550d0eSmasputra mutex_exit(&connp->conn_lock); 6181ff550d0eSmasputra 6182ff550d0eSmasputra /* 6183ff550d0eSmasputra * We can continue to use the ire but since it was not 6184ff550d0eSmasputra * cached, we should drop the extra reference. 6185ff550d0eSmasputra */ 6186ff550d0eSmasputra if (!cached) 6187ff550d0eSmasputra IRE_REFRELE_NOTR(ire); 6188ff550d0eSmasputra } 6189ff550d0eSmasputra ASSERT(ire != NULL && ire->ire_ipversion == IPV4_VERSION); 6190ff550d0eSmasputra ASSERT(!CLASSD(dst) || ipif != NULL); 6191ff550d0eSmasputra 6192c793af95Ssangeeta /* 6193c793af95Ssangeeta * Check if we can take the fast-path. 6194c793af95Ssangeeta * Note that "incomplete" ire's (where the link-layer for next hop 6195c793af95Ssangeeta * is not resolved, or where the fast-path header in nce_fp_mp is not 6196c793af95Ssangeeta * available yet) are sent down the legacy (slow) path 6197c793af95Ssangeeta */ 6198ff550d0eSmasputra if ((ire->ire_type & (IRE_BROADCAST|IRE_LOCAL|IRE_LOOPBACK)) || 61998347601bSyl (ire->ire_flags & RTF_MULTIRT) || (ire->ire_stq == NULL) || 62008347601bSyl (ire->ire_max_frag < ntohs(ipha->ipha_length)) || 6201fc80c0dfSnordmark ((ire->ire_nce == NULL) || 6202fc80c0dfSnordmark ((ire_fp_mp = ire->ire_nce->nce_fp_mp) == NULL)) || 6203fc80c0dfSnordmark connp->conn_nexthop_set || (MBLKL(ire_fp_mp) > MBLKHEAD(mp))) { 6204ff550d0eSmasputra if (ipif != NULL) 6205ff550d0eSmasputra ipif_refrele(ipif); 6206f4b3ec61Sdh UDP_STAT(us, udp_ip_ire_send); 6207ff550d0eSmasputra IRE_REFRELE(ire); 6208ff550d0eSmasputra ip_output(connp, mp, q, IP_WPUT); 6209ff550d0eSmasputra return; 6210ff550d0eSmasputra } 6211ff550d0eSmasputra 6212fc80c0dfSnordmark if (src == INADDR_ANY && !connp->conn_unspec_src) { 6213fc80c0dfSnordmark if (CLASSD(dst) && !(ire->ire_flags & RTF_SETSRC)) 6214fc80c0dfSnordmark ipha->ipha_src = ipif->ipif_src_addr; 6215fc80c0dfSnordmark else 6216fc80c0dfSnordmark ipha->ipha_src = ire->ire_src_addr; 6217fc80c0dfSnordmark } 6218ff550d0eSmasputra 6219fc80c0dfSnordmark if (ipif != NULL) 6220fc80c0dfSnordmark ipif_refrele(ipif); 6221fc80c0dfSnordmark 6222fc80c0dfSnordmark udp_xmit(connp->conn_wq, mp, ire, connp, connp->conn_zoneid); 6223fc80c0dfSnordmark } 6224fc80c0dfSnordmark 6225fc80c0dfSnordmark static void 6226fc80c0dfSnordmark udp_xmit(queue_t *q, mblk_t *mp, ire_t *ire, conn_t *connp, zoneid_t zoneid) 6227fc80c0dfSnordmark { 6228fc80c0dfSnordmark ipaddr_t src, dst; 6229fc80c0dfSnordmark ill_t *ill; 6230fc80c0dfSnordmark mblk_t *ire_fp_mp; 6231fc80c0dfSnordmark uint_t ire_fp_mp_len; 6232fc80c0dfSnordmark uint16_t *up; 6233fc80c0dfSnordmark uint32_t cksum, hcksum_txflags; 6234fc80c0dfSnordmark queue_t *dev_q; 6235fc80c0dfSnordmark udp_t *udp = connp->conn_udp; 6236fc80c0dfSnordmark ipha_t *ipha = (ipha_t *)mp->b_rptr; 6237fc80c0dfSnordmark udp_stack_t *us = udp->udp_us; 6238fc80c0dfSnordmark ip_stack_t *ipst = connp->conn_netstack->netstack_ip; 62393173664eSapersson 6240ff550d0eSmasputra dev_q = ire->ire_stq->q_next; 6241ff550d0eSmasputra ASSERT(dev_q != NULL); 6242fc80c0dfSnordmark 6243fc80c0dfSnordmark 6244fc80c0dfSnordmark if (DEV_Q_IS_FLOW_CTLED(dev_q)) { 6245fc80c0dfSnordmark BUMP_MIB(&ipst->ips_ip_mib, ipIfStatsHCOutRequests); 6246fc80c0dfSnordmark BUMP_MIB(&ipst->ips_ip_mib, ipIfStatsOutDiscards); 62475c54b31dSnordmark if (ipst->ips_ip_output_queue) 62485c54b31dSnordmark (void) putq(connp->conn_wq, mp); 62495c54b31dSnordmark else 62505c54b31dSnordmark freemsg(mp); 6251fc80c0dfSnordmark ire_refrele(ire); 6252ff550d0eSmasputra return; 6253ff550d0eSmasputra } 6254ff550d0eSmasputra 6255fc80c0dfSnordmark ire_fp_mp = ire->ire_nce->nce_fp_mp; 6256fc80c0dfSnordmark ire_fp_mp_len = MBLKL(ire_fp_mp); 6257fc80c0dfSnordmark ASSERT(MBLKHEAD(mp) >= ire_fp_mp_len); 6258fc80c0dfSnordmark 6259fc80c0dfSnordmark dst = ipha->ipha_dst; 6260fc80c0dfSnordmark src = ipha->ipha_src; 6261fc80c0dfSnordmark 6262fc80c0dfSnordmark ill = ire_to_ill(ire); 6263fc80c0dfSnordmark ASSERT(ill != NULL); 6264fc80c0dfSnordmark 6265fc80c0dfSnordmark BUMP_MIB(ill->ill_ip_mib, ipIfStatsHCOutRequests); 6266fc80c0dfSnordmark 6267ff550d0eSmasputra ipha->ipha_ident = (uint16_t)atomic_add_32_nv(&ire->ire_ident, 1); 6268ff550d0eSmasputra #ifndef _BIG_ENDIAN 6269ff550d0eSmasputra ipha->ipha_ident = (ipha->ipha_ident << 8) | (ipha->ipha_ident >> 8); 6270ff550d0eSmasputra #endif 6271ff550d0eSmasputra 6272ff550d0eSmasputra if (ILL_HCKSUM_CAPABLE(ill) && dohwcksum) { 6273ff550d0eSmasputra ASSERT(ill->ill_hcksum_capab != NULL); 6274ff550d0eSmasputra hcksum_txflags = ill->ill_hcksum_capab->ill_hcksum_txflags; 6275ff550d0eSmasputra } else { 6276ff550d0eSmasputra hcksum_txflags = 0; 6277ff550d0eSmasputra } 6278ff550d0eSmasputra 6279ff550d0eSmasputra /* pseudo-header checksum (do it in parts for IP header checksum) */ 6280ff550d0eSmasputra cksum = (dst >> 16) + (dst & 0xFFFF) + (src >> 16) + (src & 0xFFFF); 6281ff550d0eSmasputra 6282ff550d0eSmasputra ASSERT(ipha->ipha_version_and_hdr_length == IP_SIMPLE_HDR_VERSION); 6283ff550d0eSmasputra up = IPH_UDPH_CHECKSUMP(ipha, IP_SIMPLE_HDR_LENGTH); 6284ff550d0eSmasputra if (*up != 0) { 6285ff550d0eSmasputra IP_CKSUM_XMIT_FAST(ire->ire_ipversion, hcksum_txflags, 6286ff550d0eSmasputra mp, ipha, up, IPPROTO_UDP, IP_SIMPLE_HDR_LENGTH, 6287ff550d0eSmasputra ntohs(ipha->ipha_length), cksum); 6288ff550d0eSmasputra 6289ff550d0eSmasputra /* Software checksum? */ 6290ff550d0eSmasputra if (DB_CKSUMFLAGS(mp) == 0) { 6291f4b3ec61Sdh UDP_STAT(us, udp_out_sw_cksum); 6292f4b3ec61Sdh UDP_STAT_UPDATE(us, udp_out_sw_cksum_bytes, 6293ff550d0eSmasputra ntohs(ipha->ipha_length) - IP_SIMPLE_HDR_LENGTH); 6294ff550d0eSmasputra } 6295ff550d0eSmasputra } 6296ff550d0eSmasputra 6297a1165259Sblu if (!CLASSD(dst)) { 6298a1165259Sblu ipha->ipha_fragment_offset_and_flags |= 6299a1165259Sblu (uint32_t)htons(ire->ire_frag_flag); 6300a1165259Sblu } 6301ff550d0eSmasputra 6302ff550d0eSmasputra /* Calculate IP header checksum if hardware isn't capable */ 6303ff550d0eSmasputra if (!(DB_CKSUMFLAGS(mp) & HCK_IPV4_HDRCKSUM)) { 6304ff550d0eSmasputra IP_HDR_CKSUM(ipha, cksum, ((uint32_t *)ipha)[0], 6305ff550d0eSmasputra ((uint16_t *)ipha)[4]); 6306ff550d0eSmasputra } 6307ff550d0eSmasputra 6308ff550d0eSmasputra if (CLASSD(dst)) { 6309ff550d0eSmasputra ilm_t *ilm; 6310ff550d0eSmasputra 6311ff550d0eSmasputra ILM_WALKER_HOLD(ill); 6312ff550d0eSmasputra ilm = ilm_lookup_ill(ill, dst, ALL_ZONES); 6313ff550d0eSmasputra ILM_WALKER_RELE(ill); 6314ff550d0eSmasputra if (ilm != NULL) { 6315ff550d0eSmasputra ip_multicast_loopback(q, ill, mp, 6316ff550d0eSmasputra connp->conn_multicast_loop ? 0 : 6317fc80c0dfSnordmark IP_FF_NO_MCAST_LOOP, zoneid); 6318ff550d0eSmasputra } 6319ff550d0eSmasputra 6320ff550d0eSmasputra /* If multicast TTL is 0 then we are done */ 6321ff550d0eSmasputra if (ipha->ipha_ttl == 0) { 6322ff550d0eSmasputra freemsg(mp); 6323fc80c0dfSnordmark ire_refrele(ire); 6324ff550d0eSmasputra return; 6325ff550d0eSmasputra } 6326ff550d0eSmasputra } 6327ff550d0eSmasputra 6328ff550d0eSmasputra ASSERT(DB_TYPE(ire_fp_mp) == M_DATA); 6329ff550d0eSmasputra mp->b_rptr = (uchar_t *)ipha - ire_fp_mp_len; 6330ff550d0eSmasputra bcopy(ire_fp_mp->b_rptr, mp->b_rptr, ire_fp_mp_len); 6331ff550d0eSmasputra 6332ff550d0eSmasputra UPDATE_OB_PKT_COUNT(ire); 6333ff550d0eSmasputra ire->ire_last_used_time = lbolt; 6334ff550d0eSmasputra 63353173664eSapersson BUMP_MIB(ill->ill_ip_mib, ipIfStatsHCOutTransmits); 63363173664eSapersson UPDATE_MIB(ill->ill_ip_mib, ipIfStatsHCOutOctets, 63373173664eSapersson ntohs(ipha->ipha_length)); 63383173664eSapersson 63394b46d1efSkrgopi if (ILL_DLS_CAPABLE(ill)) { 6340ff550d0eSmasputra /* 6341ff550d0eSmasputra * Send the packet directly to DLD, where it may be queued 6342ff550d0eSmasputra * depending on the availability of transmit resources at 6343ff550d0eSmasputra * the media layer. 6344ff550d0eSmasputra */ 6345f4b3ec61Sdh IP_DLS_ILL_TX(ill, ipha, mp, ipst); 6346ff550d0eSmasputra } else { 6347381a2a9aSdr DTRACE_PROBE4(ip4__physical__out__start, 6348381a2a9aSdr ill_t *, NULL, ill_t *, ill, 6349381a2a9aSdr ipha_t *, ipha, mblk_t *, mp); 6350f4b3ec61Sdh FW_HOOKS(ipst->ips_ip4_physical_out_event, 6351f4b3ec61Sdh ipst->ips_ipv4firewall_physical_out, 6352f4b3ec61Sdh NULL, ill, ipha, mp, mp, ipst); 6353381a2a9aSdr DTRACE_PROBE1(ip4__physical__out__end, mblk_t *, mp); 6354381a2a9aSdr if (mp != NULL) 6355381a2a9aSdr putnext(ire->ire_stq, mp); 6356ff550d0eSmasputra } 6357ff550d0eSmasputra 6358ff550d0eSmasputra IRE_REFRELE(ire); 63597c478bd9Sstevel@tonic-gate } 63607c478bd9Sstevel@tonic-gate 636145916cd2Sjpk static boolean_t 636245916cd2Sjpk udp_update_label_v6(queue_t *wq, mblk_t *mp, in6_addr_t *dst) 636345916cd2Sjpk { 636445916cd2Sjpk udp_t *udp = Q_TO_UDP(wq); 636545916cd2Sjpk int err; 636645916cd2Sjpk uchar_t opt_storage[TSOL_MAX_IPV6_OPTION]; 6367fc80c0dfSnordmark udp_stack_t *us = udp->udp_us; 636845916cd2Sjpk 636945916cd2Sjpk err = tsol_compute_label_v6(DB_CREDDEF(mp, udp->udp_connp->conn_cred), 6370f4b3ec61Sdh dst, opt_storage, udp->udp_mac_exempt, 6371fc80c0dfSnordmark us->us_netstack->netstack_ip); 637245916cd2Sjpk if (err == 0) { 637345916cd2Sjpk err = tsol_update_sticky(&udp->udp_sticky_ipp, 637445916cd2Sjpk &udp->udp_label_len_v6, opt_storage); 637545916cd2Sjpk } 637645916cd2Sjpk if (err != 0) { 637745916cd2Sjpk DTRACE_PROBE4( 637845916cd2Sjpk tx__ip__log__drop__updatelabel__udp6, 637945916cd2Sjpk char *, "queue(1) failed to update options(2) on mp(3)", 638045916cd2Sjpk queue_t *, wq, char *, opt_storage, mblk_t *, mp); 638145916cd2Sjpk } else { 638245916cd2Sjpk udp->udp_v6lastdst = *dst; 638345916cd2Sjpk } 638445916cd2Sjpk return (err); 638545916cd2Sjpk } 638645916cd2Sjpk 6387fc80c0dfSnordmark void 6388fc80c0dfSnordmark udp_output_connected(void *arg, mblk_t *mp) 6389fc80c0dfSnordmark { 6390fc80c0dfSnordmark conn_t *connp = (conn_t *)arg; 6391fc80c0dfSnordmark udp_t *udp = connp->conn_udp; 6392fc80c0dfSnordmark udp_stack_t *us = udp->udp_us; 6393fc80c0dfSnordmark ipaddr_t v4dst; 6394fc80c0dfSnordmark in_port_t dstport; 6395fc80c0dfSnordmark boolean_t mapped_addr; 6396fc80c0dfSnordmark struct sockaddr_storage ss; 6397fc80c0dfSnordmark sin_t *sin; 6398fc80c0dfSnordmark sin6_t *sin6; 6399fc80c0dfSnordmark struct sockaddr *addr; 6400fc80c0dfSnordmark socklen_t addrlen; 6401fc80c0dfSnordmark int error; 6402fc80c0dfSnordmark boolean_t insert_spi = udp->udp_nat_t_endpoint; 6403fc80c0dfSnordmark 6404fc80c0dfSnordmark /* M_DATA for connected socket */ 6405fc80c0dfSnordmark 6406fc80c0dfSnordmark ASSERT(udp->udp_issocket); 6407fc80c0dfSnordmark UDP_DBGSTAT(us, udp_data_conn); 6408fc80c0dfSnordmark 6409fc80c0dfSnordmark mutex_enter(&connp->conn_lock); 6410fc80c0dfSnordmark if (udp->udp_state != TS_DATA_XFER) { 6411fc80c0dfSnordmark mutex_exit(&connp->conn_lock); 6412fc80c0dfSnordmark BUMP_MIB(&us->us_udp_mib, udpOutErrors); 6413fc80c0dfSnordmark UDP_STAT(us, udp_out_err_notconn); 6414fc80c0dfSnordmark freemsg(mp); 6415fc80c0dfSnordmark TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_END, 6416fc80c0dfSnordmark "udp_wput_end: connp %p (%S)", connp, 6417fc80c0dfSnordmark "not-connected; address required"); 6418fc80c0dfSnordmark return; 6419fc80c0dfSnordmark } 6420fc80c0dfSnordmark 6421fc80c0dfSnordmark mapped_addr = IN6_IS_ADDR_V4MAPPED(&udp->udp_v6dst); 6422fc80c0dfSnordmark if (mapped_addr) 6423fc80c0dfSnordmark IN6_V4MAPPED_TO_IPADDR(&udp->udp_v6dst, v4dst); 6424fc80c0dfSnordmark 6425fc80c0dfSnordmark /* Initialize addr and addrlen as if they're passed in */ 6426fc80c0dfSnordmark if (udp->udp_family == AF_INET) { 6427fc80c0dfSnordmark sin = (sin_t *)&ss; 6428fc80c0dfSnordmark sin->sin_family = AF_INET; 6429fc80c0dfSnordmark dstport = sin->sin_port = udp->udp_dstport; 6430fc80c0dfSnordmark ASSERT(mapped_addr); 6431fc80c0dfSnordmark sin->sin_addr.s_addr = v4dst; 6432fc80c0dfSnordmark addr = (struct sockaddr *)sin; 6433fc80c0dfSnordmark addrlen = sizeof (*sin); 6434fc80c0dfSnordmark } else { 6435fc80c0dfSnordmark sin6 = (sin6_t *)&ss; 6436fc80c0dfSnordmark sin6->sin6_family = AF_INET6; 6437fc80c0dfSnordmark dstport = sin6->sin6_port = udp->udp_dstport; 6438fc80c0dfSnordmark sin6->sin6_flowinfo = udp->udp_flowinfo; 6439fc80c0dfSnordmark sin6->sin6_addr = udp->udp_v6dst; 6440fc80c0dfSnordmark sin6->sin6_scope_id = 0; 6441fc80c0dfSnordmark sin6->__sin6_src_id = 0; 6442fc80c0dfSnordmark addr = (struct sockaddr *)sin6; 6443fc80c0dfSnordmark addrlen = sizeof (*sin6); 6444fc80c0dfSnordmark } 6445fc80c0dfSnordmark mutex_exit(&connp->conn_lock); 6446fc80c0dfSnordmark 6447fc80c0dfSnordmark if (mapped_addr) { 6448fc80c0dfSnordmark /* 6449fc80c0dfSnordmark * Handle both AF_INET and AF_INET6; the latter 6450fc80c0dfSnordmark * for IPV4 mapped destination addresses. Note 6451fc80c0dfSnordmark * here that both addr and addrlen point to the 6452fc80c0dfSnordmark * corresponding struct depending on the address 6453fc80c0dfSnordmark * family of the socket. 6454fc80c0dfSnordmark */ 6455fc80c0dfSnordmark mp = udp_output_v4(connp, mp, v4dst, dstport, 0, &error, 6456fc80c0dfSnordmark insert_spi); 6457fc80c0dfSnordmark } else { 6458fc80c0dfSnordmark mp = udp_output_v6(connp, mp, sin6, &error); 6459fc80c0dfSnordmark } 6460fc80c0dfSnordmark if (error == 0) { 6461fc80c0dfSnordmark ASSERT(mp == NULL); 6462fc80c0dfSnordmark return; 6463fc80c0dfSnordmark } 6464fc80c0dfSnordmark 6465fc80c0dfSnordmark UDP_STAT(us, udp_out_err_output); 6466fc80c0dfSnordmark ASSERT(mp != NULL); 6467fc80c0dfSnordmark /* mp is freed by the following routine */ 6468fc80c0dfSnordmark udp_ud_err(connp->conn_wq, mp, (uchar_t *)addr, (t_scalar_t)addrlen, 6469fc80c0dfSnordmark (t_scalar_t)error); 6470fc80c0dfSnordmark } 6471fc80c0dfSnordmark 64727c478bd9Sstevel@tonic-gate /* 6473ff550d0eSmasputra * This routine handles all messages passed downstream. It either 6474ff550d0eSmasputra * consumes the message or passes it downstream; it never queues a 6475ff550d0eSmasputra * a message. 6476fc80c0dfSnordmark * 6477fc80c0dfSnordmark * Also entry point for sockfs when udp is in "direct sockfs" mode. This mode 6478fc80c0dfSnordmark * is valid when we are directly beneath the stream head, and thus sockfs 6479fc80c0dfSnordmark * is able to bypass STREAMS and directly call us, passing along the sockaddr 6480fc80c0dfSnordmark * structure without the cumbersome T_UNITDATA_REQ interface for the case of 6481fc80c0dfSnordmark * connected endpoints. 64827c478bd9Sstevel@tonic-gate */ 6483fc80c0dfSnordmark void 6484fc80c0dfSnordmark udp_wput(queue_t *q, mblk_t *mp) 64857c478bd9Sstevel@tonic-gate { 6486ff550d0eSmasputra sin6_t *sin6; 6487ff550d0eSmasputra sin_t *sin; 6488ff550d0eSmasputra ipaddr_t v4dst; 6489ff550d0eSmasputra uint16_t port; 6490ff550d0eSmasputra uint_t srcid; 6491fc80c0dfSnordmark conn_t *connp = Q_TO_CONN(q); 6492ff550d0eSmasputra udp_t *udp = connp->conn_udp; 6493ff550d0eSmasputra int error = 0; 6494fc80c0dfSnordmark struct sockaddr *addr; 6495fc80c0dfSnordmark socklen_t addrlen; 6496f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 6497437220cdSdanmcd boolean_t insert_spi = udp->udp_nat_t_endpoint; 64987c478bd9Sstevel@tonic-gate 6499ff550d0eSmasputra TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_START, 6500fc80c0dfSnordmark "udp_wput_start: queue %p mp %p", q, mp); 6501ff550d0eSmasputra 6502ff550d0eSmasputra /* 6503ff550d0eSmasputra * We directly handle several cases here: T_UNITDATA_REQ message 6504fc80c0dfSnordmark * coming down as M_PROTO/M_PCPROTO and M_DATA messages for connected 6505fc80c0dfSnordmark * socket. 6506ff550d0eSmasputra */ 6507ff550d0eSmasputra switch (DB_TYPE(mp)) { 6508ff550d0eSmasputra case M_DATA: 6509fc80c0dfSnordmark /* 6510fc80c0dfSnordmark * Quick check for error cases. Checks will be done again 6511fc80c0dfSnordmark * under the lock later on 6512fc80c0dfSnordmark */ 6513ff550d0eSmasputra if (!udp->udp_direct_sockfs || udp->udp_state != TS_DATA_XFER) { 6514fc80c0dfSnordmark /* Not connected; address is required */ 6515fc80c0dfSnordmark BUMP_MIB(&us->us_udp_mib, udpOutErrors); 6516fc80c0dfSnordmark UDP_STAT(us, udp_out_err_notconn); 6517fc80c0dfSnordmark freemsg(mp); 6518fc80c0dfSnordmark TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_END, 6519fc80c0dfSnordmark "udp_wput_end: connp %p (%S)", connp, 6520fc80c0dfSnordmark "not-connected; address required"); 6521fc80c0dfSnordmark return; 6522ff550d0eSmasputra } 6523fc80c0dfSnordmark udp_output_connected(connp, mp); 6524ff550d0eSmasputra return; 6525fc80c0dfSnordmark 6526ff550d0eSmasputra case M_PROTO: 6527ff550d0eSmasputra case M_PCPROTO: { 6528ff550d0eSmasputra struct T_unitdata_req *tudr; 6529ff550d0eSmasputra 6530ff550d0eSmasputra ASSERT((uintptr_t)MBLKL(mp) <= (uintptr_t)INT_MAX); 6531ff550d0eSmasputra tudr = (struct T_unitdata_req *)mp->b_rptr; 6532ff550d0eSmasputra 6533ff550d0eSmasputra /* Handle valid T_UNITDATA_REQ here */ 6534ff550d0eSmasputra if (MBLKL(mp) >= sizeof (*tudr) && 6535ff550d0eSmasputra ((t_primp_t)mp->b_rptr)->type == T_UNITDATA_REQ) { 6536ff550d0eSmasputra if (mp->b_cont == NULL) { 6537ff550d0eSmasputra TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_END, 6538ff550d0eSmasputra "udp_wput_end: q %p (%S)", q, "badaddr"); 6539ff550d0eSmasputra error = EPROTO; 6540ff550d0eSmasputra goto ud_error; 6541ff550d0eSmasputra } 6542ff550d0eSmasputra 6543ff550d0eSmasputra if (!MBLKIN(mp, 0, tudr->DEST_offset + 6544ff550d0eSmasputra tudr->DEST_length)) { 6545ff550d0eSmasputra TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_END, 6546ff550d0eSmasputra "udp_wput_end: q %p (%S)", q, "badaddr"); 6547ff550d0eSmasputra error = EADDRNOTAVAIL; 6548ff550d0eSmasputra goto ud_error; 6549ff550d0eSmasputra } 6550ff550d0eSmasputra /* 6551ff550d0eSmasputra * If a port has not been bound to the stream, fail. 6552ff550d0eSmasputra * This is not a problem when sockfs is directly 6553ff550d0eSmasputra * above us, because it will ensure that the socket 6554ff550d0eSmasputra * is first bound before allowing data to be sent. 6555ff550d0eSmasputra */ 6556ff550d0eSmasputra if (udp->udp_state == TS_UNBND) { 6557ff550d0eSmasputra TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_END, 6558ff550d0eSmasputra "udp_wput_end: q %p (%S)", q, "outstate"); 6559ff550d0eSmasputra error = EPROTO; 6560ff550d0eSmasputra goto ud_error; 6561ff550d0eSmasputra } 6562ff550d0eSmasputra addr = (struct sockaddr *) 6563ff550d0eSmasputra &mp->b_rptr[tudr->DEST_offset]; 6564ff550d0eSmasputra addrlen = tudr->DEST_length; 656545916cd2Sjpk if (tudr->OPT_length != 0) 6566f4b3ec61Sdh UDP_STAT(us, udp_out_opt); 6567ff550d0eSmasputra break; 6568ff550d0eSmasputra } 6569ff550d0eSmasputra /* FALLTHRU */ 6570ff550d0eSmasputra } 6571ff550d0eSmasputra default: 6572fc80c0dfSnordmark udp_wput_other(q, mp); 6573ff550d0eSmasputra return; 6574ff550d0eSmasputra } 6575ff550d0eSmasputra ASSERT(addr != NULL); 6576ff550d0eSmasputra 6577ff550d0eSmasputra switch (udp->udp_family) { 6578ff550d0eSmasputra case AF_INET6: 6579ff550d0eSmasputra sin6 = (sin6_t *)addr; 6580fc80c0dfSnordmark if (!OK_32PTR((char *)sin6) || (addrlen != sizeof (sin6_t)) || 6581fc80c0dfSnordmark (sin6->sin6_family != AF_INET6)) { 6582ff550d0eSmasputra TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_END, 6583ff550d0eSmasputra "udp_wput_end: q %p (%S)", q, "badaddr"); 6584ff550d0eSmasputra error = EADDRNOTAVAIL; 6585ff550d0eSmasputra goto ud_error; 6586ff550d0eSmasputra } 6587ff550d0eSmasputra 6588ff550d0eSmasputra if (!IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { 6589ff550d0eSmasputra /* 6590ff550d0eSmasputra * Destination is a non-IPv4-compatible IPv6 address. 6591ff550d0eSmasputra * Send out an IPv6 format packet. 6592ff550d0eSmasputra */ 659345916cd2Sjpk mp = udp_output_v6(connp, mp, sin6, &error); 6594ff550d0eSmasputra if (error != 0) 6595ff550d0eSmasputra goto ud_error; 6596ff550d0eSmasputra 6597ff550d0eSmasputra TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_END, 6598ff550d0eSmasputra "udp_wput_end: q %p (%S)", q, "udp_output_v6"); 6599ff550d0eSmasputra return; 6600ff550d0eSmasputra } 6601ff550d0eSmasputra /* 6602ff550d0eSmasputra * If the local address is not zero or a mapped address 6603ff550d0eSmasputra * return an error. It would be possible to send an IPv4 6604ff550d0eSmasputra * packet but the response would never make it back to the 6605ff550d0eSmasputra * application since it is bound to a non-mapped address. 6606ff550d0eSmasputra */ 6607ff550d0eSmasputra if (!IN6_IS_ADDR_V4MAPPED(&udp->udp_v6src) && 6608ff550d0eSmasputra !IN6_IS_ADDR_UNSPECIFIED(&udp->udp_v6src)) { 6609ff550d0eSmasputra TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_END, 6610ff550d0eSmasputra "udp_wput_end: q %p (%S)", q, "badaddr"); 6611ff550d0eSmasputra error = EADDRNOTAVAIL; 6612ff550d0eSmasputra goto ud_error; 6613ff550d0eSmasputra } 6614ff550d0eSmasputra /* Send IPv4 packet without modifying udp_ipversion */ 6615ff550d0eSmasputra /* Extract port and ipaddr */ 6616ff550d0eSmasputra port = sin6->sin6_port; 6617ff550d0eSmasputra IN6_V4MAPPED_TO_IPADDR(&sin6->sin6_addr, v4dst); 6618ff550d0eSmasputra srcid = sin6->__sin6_src_id; 6619ff550d0eSmasputra break; 6620ff550d0eSmasputra 6621ff550d0eSmasputra case AF_INET: 6622ff550d0eSmasputra sin = (sin_t *)addr; 6623fc80c0dfSnordmark if ((!OK_32PTR((char *)sin) || addrlen != sizeof (sin_t)) || 6624fc80c0dfSnordmark (sin->sin_family != AF_INET)) { 6625ff550d0eSmasputra TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_END, 6626ff550d0eSmasputra "udp_wput_end: q %p (%S)", q, "badaddr"); 6627ff550d0eSmasputra error = EADDRNOTAVAIL; 6628ff550d0eSmasputra goto ud_error; 6629ff550d0eSmasputra } 6630ff550d0eSmasputra /* Extract port and ipaddr */ 6631ff550d0eSmasputra port = sin->sin_port; 6632ff550d0eSmasputra v4dst = sin->sin_addr.s_addr; 6633ff550d0eSmasputra srcid = 0; 6634ff550d0eSmasputra break; 6635ff550d0eSmasputra } 6636ff550d0eSmasputra 6637437220cdSdanmcd mp = udp_output_v4(connp, mp, v4dst, port, srcid, &error, insert_spi); 6638ff550d0eSmasputra if (error != 0) { 6639ff550d0eSmasputra ud_error: 6640f4b3ec61Sdh UDP_STAT(us, udp_out_err_output); 6641ff550d0eSmasputra ASSERT(mp != NULL); 6642ff550d0eSmasputra /* mp is freed by the following routine */ 6643ff550d0eSmasputra udp_ud_err(q, mp, (uchar_t *)addr, (t_scalar_t)addrlen, 6644ff550d0eSmasputra (t_scalar_t)error); 6645ff550d0eSmasputra } 6646ff550d0eSmasputra } 6647ff550d0eSmasputra 6648ff550d0eSmasputra /* 6649ff550d0eSmasputra * udp_output_v6(): 6650ff550d0eSmasputra * Assumes that udp_wput did some sanity checking on the destination 6651ff550d0eSmasputra * address. 6652ff550d0eSmasputra */ 6653ff550d0eSmasputra static mblk_t * 665445916cd2Sjpk udp_output_v6(conn_t *connp, mblk_t *mp, sin6_t *sin6, int *error) 6655ff550d0eSmasputra { 6656ff550d0eSmasputra ip6_t *ip6h; 6657ff550d0eSmasputra ip6i_t *ip6i; /* mp1->b_rptr even if no ip6i_t */ 665845916cd2Sjpk mblk_t *mp1 = mp; 6659ff550d0eSmasputra mblk_t *mp2; 6660ff550d0eSmasputra int udp_ip_hdr_len = IPV6_HDR_LEN + UDPH_SIZE; 6661ff550d0eSmasputra size_t ip_len; 6662ff550d0eSmasputra udpha_t *udph; 6663ff550d0eSmasputra udp_t *udp = connp->conn_udp; 6664ff550d0eSmasputra queue_t *q = connp->conn_wq; 6665ff550d0eSmasputra ip6_pkt_t ipp_s; /* For ancillary data options */ 6666ff550d0eSmasputra ip6_pkt_t *ipp = &ipp_s; 6667ff550d0eSmasputra ip6_pkt_t *tipp; /* temporary ipp */ 6668ff550d0eSmasputra uint32_t csum = 0; 6669ff550d0eSmasputra uint_t ignore = 0; 6670ff550d0eSmasputra uint_t option_exists = 0, is_sticky = 0; 6671ff550d0eSmasputra uint8_t *cp; 6672ff550d0eSmasputra uint8_t *nxthdr_ptr; 667345916cd2Sjpk in6_addr_t ip6_dst; 667445916cd2Sjpk udpattrs_t attrs; 667545916cd2Sjpk boolean_t opt_present; 6676dc3879f9Sjarrett ip6_hbh_t *hopoptsptr = NULL; 6677dc3879f9Sjarrett uint_t hopoptslen = 0; 6678dc3879f9Sjarrett boolean_t is_ancillary = B_FALSE; 6679f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 6680fc80c0dfSnordmark size_t sth_wroff = 0; 6681ff550d0eSmasputra 6682ff550d0eSmasputra *error = 0; 6683ff550d0eSmasputra 66847c478bd9Sstevel@tonic-gate /* 66857c478bd9Sstevel@tonic-gate * If the local address is a mapped address return 66867c478bd9Sstevel@tonic-gate * an error. 66877c478bd9Sstevel@tonic-gate * It would be possible to send an IPv6 packet but the 66887c478bd9Sstevel@tonic-gate * response would never make it back to the application 66897c478bd9Sstevel@tonic-gate * since it is bound to a mapped address. 66907c478bd9Sstevel@tonic-gate */ 66917c478bd9Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED(&udp->udp_v6src)) { 6692ff550d0eSmasputra *error = EADDRNOTAVAIL; 6693ff550d0eSmasputra goto done; 66947c478bd9Sstevel@tonic-gate } 66957c478bd9Sstevel@tonic-gate 66967c478bd9Sstevel@tonic-gate ipp->ipp_fields = 0; 66977c478bd9Sstevel@tonic-gate ipp->ipp_sticky_ignored = 0; 66987c478bd9Sstevel@tonic-gate 66997c478bd9Sstevel@tonic-gate /* 67007c478bd9Sstevel@tonic-gate * If TPI options passed in, feed it for verification and handling 67017c478bd9Sstevel@tonic-gate */ 670245916cd2Sjpk attrs.udpattr_credset = B_FALSE; 670345916cd2Sjpk opt_present = B_FALSE; 670445916cd2Sjpk if (DB_TYPE(mp) != M_DATA) { 670545916cd2Sjpk mp1 = mp->b_cont; 670645916cd2Sjpk if (((struct T_unitdata_req *)mp->b_rptr)->OPT_length != 0) { 670719a30e1aSrshoaib attrs.udpattr_ipp6 = ipp; 670845916cd2Sjpk attrs.udpattr_mb = mp; 6709fc80c0dfSnordmark if (udp_unitdata_opt_process(q, mp, error, 6710fc80c0dfSnordmark &attrs) < 0) { 671145916cd2Sjpk goto done; 6712fc80c0dfSnordmark } 671345916cd2Sjpk ASSERT(*error == 0); 671445916cd2Sjpk opt_present = B_TRUE; 67157c478bd9Sstevel@tonic-gate } 67167c478bd9Sstevel@tonic-gate } 6717fc80c0dfSnordmark rw_enter(&udp->udp_rwlock, RW_READER); 671845916cd2Sjpk ignore = ipp->ipp_sticky_ignored; 671945916cd2Sjpk 672045916cd2Sjpk /* mp1 points to the M_DATA mblk carrying the packet */ 672145916cd2Sjpk ASSERT(mp1 != NULL && DB_TYPE(mp1) == M_DATA); 67227c478bd9Sstevel@tonic-gate 67237c478bd9Sstevel@tonic-gate if (sin6->sin6_scope_id != 0 && 67247c478bd9Sstevel@tonic-gate IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 67257c478bd9Sstevel@tonic-gate /* 67267c478bd9Sstevel@tonic-gate * IPPF_SCOPE_ID is special. It's neither a sticky 67277c478bd9Sstevel@tonic-gate * option nor ancillary data. It needs to be 67287c478bd9Sstevel@tonic-gate * explicitly set in options_exists. 67297c478bd9Sstevel@tonic-gate */ 67307c478bd9Sstevel@tonic-gate option_exists |= IPPF_SCOPE_ID; 67317c478bd9Sstevel@tonic-gate } 67327c478bd9Sstevel@tonic-gate 673345916cd2Sjpk /* 673445916cd2Sjpk * Compute the destination address 673545916cd2Sjpk */ 673645916cd2Sjpk ip6_dst = sin6->sin6_addr; 673745916cd2Sjpk if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) 673845916cd2Sjpk ip6_dst = ipv6_loopback; 673945916cd2Sjpk 674045916cd2Sjpk /* 674145916cd2Sjpk * If we're not going to the same destination as last time, then 674245916cd2Sjpk * recompute the label required. This is done in a separate routine to 674345916cd2Sjpk * avoid blowing up our stack here. 6744dc3879f9Sjarrett * 6745dc3879f9Sjarrett * TSOL Note: Since we are not in WRITER mode, UDP packets 674603986916Sjarrett * to different destination may require different labels, 674703986916Sjarrett * or worse, UDP packets to same IP address may require 674803986916Sjarrett * different labels due to use of shared all-zones address. 6749dc3879f9Sjarrett * We use conn_lock to ensure that lastdst, sticky ipp_hopopts, 6750dc3879f9Sjarrett * and sticky ipp_hopoptslen are consistent for the current 6751dc3879f9Sjarrett * destination and are updated atomically. 675245916cd2Sjpk */ 6753dc3879f9Sjarrett mutex_enter(&connp->conn_lock); 675445916cd2Sjpk if (is_system_labeled()) { 675545916cd2Sjpk /* Using UDP MLP requires SCM_UCRED from user */ 675645916cd2Sjpk if (connp->conn_mlp_type != mlptSingle && 675745916cd2Sjpk !attrs.udpattr_credset) { 675845916cd2Sjpk DTRACE_PROBE4( 675945916cd2Sjpk tx__ip__log__info__output__udp6, 676045916cd2Sjpk char *, "MLP mp(1) lacks SCM_UCRED attr(2) on q(3)", 676145916cd2Sjpk mblk_t *, mp1, udpattrs_t *, &attrs, queue_t *, q); 676245916cd2Sjpk *error = ECONNREFUSED; 6763fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 6764dc3879f9Sjarrett mutex_exit(&connp->conn_lock); 676545916cd2Sjpk goto done; 676645916cd2Sjpk } 676703986916Sjarrett /* 676803986916Sjarrett * update label option for this UDP socket if 676903986916Sjarrett * - the destination has changed, or 677003986916Sjarrett * - the UDP socket is MLP 677103986916Sjarrett */ 677245916cd2Sjpk if ((opt_present || 677303986916Sjarrett !IN6_ARE_ADDR_EQUAL(&udp->udp_v6lastdst, &ip6_dst) || 677403986916Sjarrett connp->conn_mlp_type != mlptSingle) && 6775dc3879f9Sjarrett (*error = udp_update_label_v6(q, mp, &ip6_dst)) != 0) { 6776fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 6777dc3879f9Sjarrett mutex_exit(&connp->conn_lock); 677845916cd2Sjpk goto done; 6779dc3879f9Sjarrett } 678045916cd2Sjpk } 678145916cd2Sjpk 678245916cd2Sjpk /* 678345916cd2Sjpk * If there's a security label here, then we ignore any options the 678445916cd2Sjpk * user may try to set. We keep the peer's label as a hidden sticky 6785dc3879f9Sjarrett * option. We make a private copy of this label before releasing the 6786dc3879f9Sjarrett * lock so that label is kept consistent with the destination addr. 678745916cd2Sjpk */ 678845916cd2Sjpk if (udp->udp_label_len_v6 > 0) { 678945916cd2Sjpk ignore &= ~IPPF_HOPOPTS; 679045916cd2Sjpk ipp->ipp_fields &= ~IPPF_HOPOPTS; 679145916cd2Sjpk } 679245916cd2Sjpk 6793ff550d0eSmasputra if ((udp->udp_sticky_ipp.ipp_fields == 0) && (ipp->ipp_fields == 0)) { 67947c478bd9Sstevel@tonic-gate /* No sticky options nor ancillary data. */ 6795dc3879f9Sjarrett mutex_exit(&connp->conn_lock); 67967c478bd9Sstevel@tonic-gate goto no_options; 67977c478bd9Sstevel@tonic-gate } 67987c478bd9Sstevel@tonic-gate 67997c478bd9Sstevel@tonic-gate /* 68007c478bd9Sstevel@tonic-gate * Go through the options figuring out where each is going to 68017c478bd9Sstevel@tonic-gate * come from and build two masks. The first mask indicates if 68027c478bd9Sstevel@tonic-gate * the option exists at all. The second mask indicates if the 68037c478bd9Sstevel@tonic-gate * option is sticky or ancillary. 68047c478bd9Sstevel@tonic-gate */ 68057c478bd9Sstevel@tonic-gate if (!(ignore & IPPF_HOPOPTS)) { 68067c478bd9Sstevel@tonic-gate if (ipp->ipp_fields & IPPF_HOPOPTS) { 68077c478bd9Sstevel@tonic-gate option_exists |= IPPF_HOPOPTS; 68087c478bd9Sstevel@tonic-gate udp_ip_hdr_len += ipp->ipp_hopoptslen; 68097c478bd9Sstevel@tonic-gate } else if (udp->udp_sticky_ipp.ipp_fields & IPPF_HOPOPTS) { 68107c478bd9Sstevel@tonic-gate option_exists |= IPPF_HOPOPTS; 68117c478bd9Sstevel@tonic-gate is_sticky |= IPPF_HOPOPTS; 6812dc3879f9Sjarrett ASSERT(udp->udp_sticky_ipp.ipp_hopoptslen != 0); 6813dc3879f9Sjarrett hopoptsptr = kmem_alloc( 6814dc3879f9Sjarrett udp->udp_sticky_ipp.ipp_hopoptslen, KM_NOSLEEP); 6815dc3879f9Sjarrett if (hopoptsptr == NULL) { 6816dc3879f9Sjarrett *error = ENOMEM; 6817dc3879f9Sjarrett mutex_exit(&connp->conn_lock); 6818dc3879f9Sjarrett goto done; 6819dc3879f9Sjarrett } 6820dc3879f9Sjarrett hopoptslen = udp->udp_sticky_ipp.ipp_hopoptslen; 6821dc3879f9Sjarrett bcopy(udp->udp_sticky_ipp.ipp_hopopts, hopoptsptr, 6822dc3879f9Sjarrett hopoptslen); 6823dc3879f9Sjarrett udp_ip_hdr_len += hopoptslen; 68247c478bd9Sstevel@tonic-gate } 68257c478bd9Sstevel@tonic-gate } 6826dc3879f9Sjarrett mutex_exit(&connp->conn_lock); 68277c478bd9Sstevel@tonic-gate 68287c478bd9Sstevel@tonic-gate if (!(ignore & IPPF_RTHDR)) { 68297c478bd9Sstevel@tonic-gate if (ipp->ipp_fields & IPPF_RTHDR) { 68307c478bd9Sstevel@tonic-gate option_exists |= IPPF_RTHDR; 68317c478bd9Sstevel@tonic-gate udp_ip_hdr_len += ipp->ipp_rthdrlen; 68327c478bd9Sstevel@tonic-gate } else if (udp->udp_sticky_ipp.ipp_fields & IPPF_RTHDR) { 68337c478bd9Sstevel@tonic-gate option_exists |= IPPF_RTHDR; 68347c478bd9Sstevel@tonic-gate is_sticky |= IPPF_RTHDR; 68357c478bd9Sstevel@tonic-gate udp_ip_hdr_len += udp->udp_sticky_ipp.ipp_rthdrlen; 68367c478bd9Sstevel@tonic-gate } 68377c478bd9Sstevel@tonic-gate } 68387c478bd9Sstevel@tonic-gate 68397c478bd9Sstevel@tonic-gate if (!(ignore & IPPF_RTDSTOPTS) && (option_exists & IPPF_RTHDR)) { 68407c478bd9Sstevel@tonic-gate if (ipp->ipp_fields & IPPF_RTDSTOPTS) { 68417c478bd9Sstevel@tonic-gate option_exists |= IPPF_RTDSTOPTS; 68427c478bd9Sstevel@tonic-gate udp_ip_hdr_len += ipp->ipp_rtdstoptslen; 68437c478bd9Sstevel@tonic-gate } else if (udp->udp_sticky_ipp.ipp_fields & IPPF_RTDSTOPTS) { 68447c478bd9Sstevel@tonic-gate option_exists |= IPPF_RTDSTOPTS; 68457c478bd9Sstevel@tonic-gate is_sticky |= IPPF_RTDSTOPTS; 68467c478bd9Sstevel@tonic-gate udp_ip_hdr_len += udp->udp_sticky_ipp.ipp_rtdstoptslen; 68477c478bd9Sstevel@tonic-gate } 68487c478bd9Sstevel@tonic-gate } 68497c478bd9Sstevel@tonic-gate 68507c478bd9Sstevel@tonic-gate if (!(ignore & IPPF_DSTOPTS)) { 68517c478bd9Sstevel@tonic-gate if (ipp->ipp_fields & IPPF_DSTOPTS) { 68527c478bd9Sstevel@tonic-gate option_exists |= IPPF_DSTOPTS; 68537c478bd9Sstevel@tonic-gate udp_ip_hdr_len += ipp->ipp_dstoptslen; 68547c478bd9Sstevel@tonic-gate } else if (udp->udp_sticky_ipp.ipp_fields & IPPF_DSTOPTS) { 68557c478bd9Sstevel@tonic-gate option_exists |= IPPF_DSTOPTS; 68567c478bd9Sstevel@tonic-gate is_sticky |= IPPF_DSTOPTS; 68577c478bd9Sstevel@tonic-gate udp_ip_hdr_len += udp->udp_sticky_ipp.ipp_dstoptslen; 68587c478bd9Sstevel@tonic-gate } 68597c478bd9Sstevel@tonic-gate } 68607c478bd9Sstevel@tonic-gate 68617c478bd9Sstevel@tonic-gate if (!(ignore & IPPF_IFINDEX)) { 68627c478bd9Sstevel@tonic-gate if (ipp->ipp_fields & IPPF_IFINDEX) { 68637c478bd9Sstevel@tonic-gate option_exists |= IPPF_IFINDEX; 68647c478bd9Sstevel@tonic-gate } else if (udp->udp_sticky_ipp.ipp_fields & IPPF_IFINDEX) { 68657c478bd9Sstevel@tonic-gate option_exists |= IPPF_IFINDEX; 68667c478bd9Sstevel@tonic-gate is_sticky |= IPPF_IFINDEX; 68677c478bd9Sstevel@tonic-gate } 68687c478bd9Sstevel@tonic-gate } 68697c478bd9Sstevel@tonic-gate 68707c478bd9Sstevel@tonic-gate if (!(ignore & IPPF_ADDR)) { 68717c478bd9Sstevel@tonic-gate if (ipp->ipp_fields & IPPF_ADDR) { 68727c478bd9Sstevel@tonic-gate option_exists |= IPPF_ADDR; 68737c478bd9Sstevel@tonic-gate } else if (udp->udp_sticky_ipp.ipp_fields & IPPF_ADDR) { 68747c478bd9Sstevel@tonic-gate option_exists |= IPPF_ADDR; 68757c478bd9Sstevel@tonic-gate is_sticky |= IPPF_ADDR; 68767c478bd9Sstevel@tonic-gate } 68777c478bd9Sstevel@tonic-gate } 68787c478bd9Sstevel@tonic-gate 68797c478bd9Sstevel@tonic-gate if (!(ignore & IPPF_DONTFRAG)) { 68807c478bd9Sstevel@tonic-gate if (ipp->ipp_fields & IPPF_DONTFRAG) { 68817c478bd9Sstevel@tonic-gate option_exists |= IPPF_DONTFRAG; 68827c478bd9Sstevel@tonic-gate } else if (udp->udp_sticky_ipp.ipp_fields & IPPF_DONTFRAG) { 68837c478bd9Sstevel@tonic-gate option_exists |= IPPF_DONTFRAG; 68847c478bd9Sstevel@tonic-gate is_sticky |= IPPF_DONTFRAG; 68857c478bd9Sstevel@tonic-gate } 68867c478bd9Sstevel@tonic-gate } 68877c478bd9Sstevel@tonic-gate 68887c478bd9Sstevel@tonic-gate if (!(ignore & IPPF_USE_MIN_MTU)) { 68897c478bd9Sstevel@tonic-gate if (ipp->ipp_fields & IPPF_USE_MIN_MTU) { 68907c478bd9Sstevel@tonic-gate option_exists |= IPPF_USE_MIN_MTU; 6891ff550d0eSmasputra } else if (udp->udp_sticky_ipp.ipp_fields & 6892ff550d0eSmasputra IPPF_USE_MIN_MTU) { 68937c478bd9Sstevel@tonic-gate option_exists |= IPPF_USE_MIN_MTU; 68947c478bd9Sstevel@tonic-gate is_sticky |= IPPF_USE_MIN_MTU; 68957c478bd9Sstevel@tonic-gate } 68967c478bd9Sstevel@tonic-gate } 68977c478bd9Sstevel@tonic-gate 6898b3d0fa4fSseb if (!(ignore & IPPF_HOPLIMIT) && (ipp->ipp_fields & IPPF_HOPLIMIT)) 6899b3d0fa4fSseb option_exists |= IPPF_HOPLIMIT; 6900b3d0fa4fSseb /* IPV6_HOPLIMIT can never be sticky */ 6901b3d0fa4fSseb ASSERT(!(udp->udp_sticky_ipp.ipp_fields & IPPF_HOPLIMIT)); 6902b3d0fa4fSseb 6903b3d0fa4fSseb if (!(ignore & IPPF_UNICAST_HOPS) && 6904b3d0fa4fSseb (udp->udp_sticky_ipp.ipp_fields & IPPF_UNICAST_HOPS)) { 6905b3d0fa4fSseb option_exists |= IPPF_UNICAST_HOPS; 6906b3d0fa4fSseb is_sticky |= IPPF_UNICAST_HOPS; 6907b3d0fa4fSseb } 6908b3d0fa4fSseb 6909b3d0fa4fSseb if (!(ignore & IPPF_MULTICAST_HOPS) && 6910b3d0fa4fSseb (udp->udp_sticky_ipp.ipp_fields & IPPF_MULTICAST_HOPS)) { 6911b3d0fa4fSseb option_exists |= IPPF_MULTICAST_HOPS; 6912b3d0fa4fSseb is_sticky |= IPPF_MULTICAST_HOPS; 69137c478bd9Sstevel@tonic-gate } 69147c478bd9Sstevel@tonic-gate 69157c478bd9Sstevel@tonic-gate if (!(ignore & IPPF_TCLASS)) { 69167c478bd9Sstevel@tonic-gate if (ipp->ipp_fields & IPPF_TCLASS) { 69177c478bd9Sstevel@tonic-gate option_exists |= IPPF_TCLASS; 69187c478bd9Sstevel@tonic-gate } else if (udp->udp_sticky_ipp.ipp_fields & IPPF_TCLASS) { 69197c478bd9Sstevel@tonic-gate option_exists |= IPPF_TCLASS; 69207c478bd9Sstevel@tonic-gate is_sticky |= IPPF_TCLASS; 69217c478bd9Sstevel@tonic-gate } 69227c478bd9Sstevel@tonic-gate } 69237c478bd9Sstevel@tonic-gate 69244c10bc16Spwernau if (!(ignore & IPPF_NEXTHOP) && 69254c10bc16Spwernau (udp->udp_sticky_ipp.ipp_fields & IPPF_NEXTHOP)) { 69264c10bc16Spwernau option_exists |= IPPF_NEXTHOP; 69274c10bc16Spwernau is_sticky |= IPPF_NEXTHOP; 69284c10bc16Spwernau } 69294c10bc16Spwernau 69307c478bd9Sstevel@tonic-gate no_options: 69317c478bd9Sstevel@tonic-gate 69327c478bd9Sstevel@tonic-gate /* 69337c478bd9Sstevel@tonic-gate * If any options carried in the ip6i_t were specified, we 69347c478bd9Sstevel@tonic-gate * need to account for the ip6i_t in the data we'll be sending 69357c478bd9Sstevel@tonic-gate * down. 69367c478bd9Sstevel@tonic-gate */ 69377c478bd9Sstevel@tonic-gate if (option_exists & IPPF_HAS_IP6I) 69387c478bd9Sstevel@tonic-gate udp_ip_hdr_len += sizeof (ip6i_t); 69397c478bd9Sstevel@tonic-gate 69407c478bd9Sstevel@tonic-gate /* check/fix buffer config, setup pointers into it */ 69417c478bd9Sstevel@tonic-gate ip6h = (ip6_t *)&mp1->b_rptr[-udp_ip_hdr_len]; 6942ff550d0eSmasputra if (DB_REF(mp1) != 1 || ((unsigned char *)ip6h < DB_BASE(mp1)) || 69437c478bd9Sstevel@tonic-gate !OK_32PTR(ip6h)) { 6944fc80c0dfSnordmark 69457c478bd9Sstevel@tonic-gate /* Try to get everything in a single mblk next time */ 69467c478bd9Sstevel@tonic-gate if (udp_ip_hdr_len > udp->udp_max_hdr_len) { 69477c478bd9Sstevel@tonic-gate udp->udp_max_hdr_len = udp_ip_hdr_len; 6948fc80c0dfSnordmark sth_wroff = udp->udp_max_hdr_len + us->us_wroff_extra; 69497c478bd9Sstevel@tonic-gate } 6950fc80c0dfSnordmark 6951f4b3ec61Sdh mp2 = allocb(udp_ip_hdr_len + us->us_wroff_extra, BPRI_LO); 6952ff550d0eSmasputra if (mp2 == NULL) { 6953ff550d0eSmasputra *error = ENOMEM; 6954fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 6955ff550d0eSmasputra goto done; 69567c478bd9Sstevel@tonic-gate } 6957ff550d0eSmasputra mp2->b_wptr = DB_LIM(mp2); 6958ff550d0eSmasputra mp2->b_cont = mp1; 6959ff550d0eSmasputra mp1 = mp2; 6960ff550d0eSmasputra if (DB_TYPE(mp) != M_DATA) 6961ff550d0eSmasputra mp->b_cont = mp1; 6962ff550d0eSmasputra else 6963ff550d0eSmasputra mp = mp1; 6964ff550d0eSmasputra 69657c478bd9Sstevel@tonic-gate ip6h = (ip6_t *)(mp1->b_wptr - udp_ip_hdr_len); 69667c478bd9Sstevel@tonic-gate } 69677c478bd9Sstevel@tonic-gate mp1->b_rptr = (unsigned char *)ip6h; 69687c478bd9Sstevel@tonic-gate ip6i = (ip6i_t *)ip6h; 69697c478bd9Sstevel@tonic-gate 69707c478bd9Sstevel@tonic-gate #define ANCIL_OR_STICKY_PTR(f) ((is_sticky & f) ? &udp->udp_sticky_ipp : ipp) 69717c478bd9Sstevel@tonic-gate if (option_exists & IPPF_HAS_IP6I) { 69727c478bd9Sstevel@tonic-gate ip6h = (ip6_t *)&ip6i[1]; 69737c478bd9Sstevel@tonic-gate ip6i->ip6i_flags = 0; 69747c478bd9Sstevel@tonic-gate ip6i->ip6i_vcf = IPV6_DEFAULT_VERS_AND_FLOW; 69757c478bd9Sstevel@tonic-gate 69767c478bd9Sstevel@tonic-gate /* sin6_scope_id takes precendence over IPPF_IFINDEX */ 69777c478bd9Sstevel@tonic-gate if (option_exists & IPPF_SCOPE_ID) { 69787c478bd9Sstevel@tonic-gate ip6i->ip6i_flags |= IP6I_IFINDEX; 69797c478bd9Sstevel@tonic-gate ip6i->ip6i_ifindex = sin6->sin6_scope_id; 69807c478bd9Sstevel@tonic-gate } else if (option_exists & IPPF_IFINDEX) { 69817c478bd9Sstevel@tonic-gate tipp = ANCIL_OR_STICKY_PTR(IPPF_IFINDEX); 69827c478bd9Sstevel@tonic-gate ASSERT(tipp->ipp_ifindex != 0); 69837c478bd9Sstevel@tonic-gate ip6i->ip6i_flags |= IP6I_IFINDEX; 69847c478bd9Sstevel@tonic-gate ip6i->ip6i_ifindex = tipp->ipp_ifindex; 69857c478bd9Sstevel@tonic-gate } 69867c478bd9Sstevel@tonic-gate 69877c478bd9Sstevel@tonic-gate if (option_exists & IPPF_ADDR) { 69887c478bd9Sstevel@tonic-gate /* 69897c478bd9Sstevel@tonic-gate * Enable per-packet source address verification if 69907c478bd9Sstevel@tonic-gate * IPV6_PKTINFO specified the source address. 69917c478bd9Sstevel@tonic-gate * ip6_src is set in the transport's _wput function. 69927c478bd9Sstevel@tonic-gate */ 69937c478bd9Sstevel@tonic-gate ip6i->ip6i_flags |= IP6I_VERIFY_SRC; 69947c478bd9Sstevel@tonic-gate } 69957c478bd9Sstevel@tonic-gate 69967c478bd9Sstevel@tonic-gate if (option_exists & IPPF_DONTFRAG) { 69977c478bd9Sstevel@tonic-gate ip6i->ip6i_flags |= IP6I_DONTFRAG; 69987c478bd9Sstevel@tonic-gate } 69997c478bd9Sstevel@tonic-gate 70007c478bd9Sstevel@tonic-gate if (option_exists & IPPF_USE_MIN_MTU) { 70017c478bd9Sstevel@tonic-gate ip6i->ip6i_flags = IP6I_API_USE_MIN_MTU( 70027c478bd9Sstevel@tonic-gate ip6i->ip6i_flags, ipp->ipp_use_min_mtu); 70037c478bd9Sstevel@tonic-gate } 70047c478bd9Sstevel@tonic-gate 70057c478bd9Sstevel@tonic-gate if (option_exists & IPPF_NEXTHOP) { 70067c478bd9Sstevel@tonic-gate tipp = ANCIL_OR_STICKY_PTR(IPPF_NEXTHOP); 70077c478bd9Sstevel@tonic-gate ASSERT(!IN6_IS_ADDR_UNSPECIFIED(&tipp->ipp_nexthop)); 70087c478bd9Sstevel@tonic-gate ip6i->ip6i_flags |= IP6I_NEXTHOP; 70097c478bd9Sstevel@tonic-gate ip6i->ip6i_nexthop = tipp->ipp_nexthop; 70107c478bd9Sstevel@tonic-gate } 70117c478bd9Sstevel@tonic-gate 70127c478bd9Sstevel@tonic-gate /* 70137c478bd9Sstevel@tonic-gate * tell IP this is an ip6i_t private header 70147c478bd9Sstevel@tonic-gate */ 70157c478bd9Sstevel@tonic-gate ip6i->ip6i_nxt = IPPROTO_RAW; 70167c478bd9Sstevel@tonic-gate } 70177c478bd9Sstevel@tonic-gate 70187c478bd9Sstevel@tonic-gate /* Initialize IPv6 header */ 70197c478bd9Sstevel@tonic-gate ip6h->ip6_vcf = IPV6_DEFAULT_VERS_AND_FLOW; 70207c478bd9Sstevel@tonic-gate bzero(&ip6h->ip6_src, sizeof (ip6h->ip6_src)); 70217c478bd9Sstevel@tonic-gate 7022b3d0fa4fSseb /* Set the hoplimit of the outgoing packet. */ 70237c478bd9Sstevel@tonic-gate if (option_exists & IPPF_HOPLIMIT) { 7024b3d0fa4fSseb /* IPV6_HOPLIMIT ancillary data overrides all other settings. */ 7025b3d0fa4fSseb ip6h->ip6_hops = ipp->ipp_hoplimit; 70267c478bd9Sstevel@tonic-gate ip6i->ip6i_flags |= IP6I_HOPLIMIT; 7027b3d0fa4fSseb } else if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr)) { 7028b3d0fa4fSseb ip6h->ip6_hops = udp->udp_multicast_ttl; 7029b3d0fa4fSseb if (option_exists & IPPF_MULTICAST_HOPS) 7030b3d0fa4fSseb ip6i->ip6i_flags |= IP6I_HOPLIMIT; 70317c478bd9Sstevel@tonic-gate } else { 70327c478bd9Sstevel@tonic-gate ip6h->ip6_hops = udp->udp_ttl; 7033b3d0fa4fSseb if (option_exists & IPPF_UNICAST_HOPS) 7034b3d0fa4fSseb ip6i->ip6i_flags |= IP6I_HOPLIMIT; 70357c478bd9Sstevel@tonic-gate } 70367c478bd9Sstevel@tonic-gate 70377c478bd9Sstevel@tonic-gate if (option_exists & IPPF_ADDR) { 70387c478bd9Sstevel@tonic-gate tipp = ANCIL_OR_STICKY_PTR(IPPF_ADDR); 70397c478bd9Sstevel@tonic-gate ASSERT(!IN6_IS_ADDR_UNSPECIFIED(&tipp->ipp_addr)); 70407c478bd9Sstevel@tonic-gate ip6h->ip6_src = tipp->ipp_addr; 70417c478bd9Sstevel@tonic-gate } else { 70427c478bd9Sstevel@tonic-gate /* 70437c478bd9Sstevel@tonic-gate * The source address was not set using IPV6_PKTINFO. 70447c478bd9Sstevel@tonic-gate * First look at the bound source. 70457c478bd9Sstevel@tonic-gate * If unspecified fallback to __sin6_src_id. 70467c478bd9Sstevel@tonic-gate */ 70477c478bd9Sstevel@tonic-gate ip6h->ip6_src = udp->udp_v6src; 70487c478bd9Sstevel@tonic-gate if (sin6->__sin6_src_id != 0 && 70497c478bd9Sstevel@tonic-gate IN6_IS_ADDR_UNSPECIFIED(&ip6h->ip6_src)) { 70507c478bd9Sstevel@tonic-gate ip_srcid_find_id(sin6->__sin6_src_id, 7051f4b3ec61Sdh &ip6h->ip6_src, connp->conn_zoneid, 7052f4b3ec61Sdh us->us_netstack); 70537c478bd9Sstevel@tonic-gate } 70547c478bd9Sstevel@tonic-gate } 70557c478bd9Sstevel@tonic-gate 70567c478bd9Sstevel@tonic-gate nxthdr_ptr = (uint8_t *)&ip6h->ip6_nxt; 70577c478bd9Sstevel@tonic-gate cp = (uint8_t *)&ip6h[1]; 70587c478bd9Sstevel@tonic-gate 70597c478bd9Sstevel@tonic-gate /* 70607c478bd9Sstevel@tonic-gate * Here's where we have to start stringing together 70617c478bd9Sstevel@tonic-gate * any extension headers in the right order: 70627c478bd9Sstevel@tonic-gate * Hop-by-hop, destination, routing, and final destination opts. 70637c478bd9Sstevel@tonic-gate */ 70647c478bd9Sstevel@tonic-gate if (option_exists & IPPF_HOPOPTS) { 70657c478bd9Sstevel@tonic-gate /* Hop-by-hop options */ 70667c478bd9Sstevel@tonic-gate ip6_hbh_t *hbh = (ip6_hbh_t *)cp; 70677c478bd9Sstevel@tonic-gate tipp = ANCIL_OR_STICKY_PTR(IPPF_HOPOPTS); 7068dc3879f9Sjarrett if (hopoptslen == 0) { 7069dc3879f9Sjarrett hopoptsptr = tipp->ipp_hopopts; 7070dc3879f9Sjarrett hopoptslen = tipp->ipp_hopoptslen; 7071dc3879f9Sjarrett is_ancillary = B_TRUE; 7072dc3879f9Sjarrett } 70737c478bd9Sstevel@tonic-gate 70747c478bd9Sstevel@tonic-gate *nxthdr_ptr = IPPROTO_HOPOPTS; 70757c478bd9Sstevel@tonic-gate nxthdr_ptr = &hbh->ip6h_nxt; 70767c478bd9Sstevel@tonic-gate 7077dc3879f9Sjarrett bcopy(hopoptsptr, cp, hopoptslen); 7078dc3879f9Sjarrett cp += hopoptslen; 7079dc3879f9Sjarrett 7080dc3879f9Sjarrett if (hopoptsptr != NULL && !is_ancillary) { 7081dc3879f9Sjarrett kmem_free(hopoptsptr, hopoptslen); 7082dc3879f9Sjarrett hopoptsptr = NULL; 7083dc3879f9Sjarrett hopoptslen = 0; 7084dc3879f9Sjarrett } 70857c478bd9Sstevel@tonic-gate } 70867c478bd9Sstevel@tonic-gate /* 70877c478bd9Sstevel@tonic-gate * En-route destination options 70887c478bd9Sstevel@tonic-gate * Only do them if there's a routing header as well 70897c478bd9Sstevel@tonic-gate */ 70907c478bd9Sstevel@tonic-gate if (option_exists & IPPF_RTDSTOPTS) { 70917c478bd9Sstevel@tonic-gate ip6_dest_t *dst = (ip6_dest_t *)cp; 70927c478bd9Sstevel@tonic-gate tipp = ANCIL_OR_STICKY_PTR(IPPF_RTDSTOPTS); 70937c478bd9Sstevel@tonic-gate 70947c478bd9Sstevel@tonic-gate *nxthdr_ptr = IPPROTO_DSTOPTS; 70957c478bd9Sstevel@tonic-gate nxthdr_ptr = &dst->ip6d_nxt; 70967c478bd9Sstevel@tonic-gate 70977c478bd9Sstevel@tonic-gate bcopy(tipp->ipp_rtdstopts, cp, tipp->ipp_rtdstoptslen); 70987c478bd9Sstevel@tonic-gate cp += tipp->ipp_rtdstoptslen; 70997c478bd9Sstevel@tonic-gate } 71007c478bd9Sstevel@tonic-gate /* 71017c478bd9Sstevel@tonic-gate * Routing header next 71027c478bd9Sstevel@tonic-gate */ 71037c478bd9Sstevel@tonic-gate if (option_exists & IPPF_RTHDR) { 71047c478bd9Sstevel@tonic-gate ip6_rthdr_t *rt = (ip6_rthdr_t *)cp; 71057c478bd9Sstevel@tonic-gate tipp = ANCIL_OR_STICKY_PTR(IPPF_RTHDR); 71067c478bd9Sstevel@tonic-gate 71077c478bd9Sstevel@tonic-gate *nxthdr_ptr = IPPROTO_ROUTING; 71087c478bd9Sstevel@tonic-gate nxthdr_ptr = &rt->ip6r_nxt; 71097c478bd9Sstevel@tonic-gate 71107c478bd9Sstevel@tonic-gate bcopy(tipp->ipp_rthdr, cp, tipp->ipp_rthdrlen); 71117c478bd9Sstevel@tonic-gate cp += tipp->ipp_rthdrlen; 71127c478bd9Sstevel@tonic-gate } 71137c478bd9Sstevel@tonic-gate /* 71147c478bd9Sstevel@tonic-gate * Do ultimate destination options 71157c478bd9Sstevel@tonic-gate */ 71167c478bd9Sstevel@tonic-gate if (option_exists & IPPF_DSTOPTS) { 71177c478bd9Sstevel@tonic-gate ip6_dest_t *dest = (ip6_dest_t *)cp; 71187c478bd9Sstevel@tonic-gate tipp = ANCIL_OR_STICKY_PTR(IPPF_DSTOPTS); 71197c478bd9Sstevel@tonic-gate 71207c478bd9Sstevel@tonic-gate *nxthdr_ptr = IPPROTO_DSTOPTS; 71217c478bd9Sstevel@tonic-gate nxthdr_ptr = &dest->ip6d_nxt; 71227c478bd9Sstevel@tonic-gate 71237c478bd9Sstevel@tonic-gate bcopy(tipp->ipp_dstopts, cp, tipp->ipp_dstoptslen); 71247c478bd9Sstevel@tonic-gate cp += tipp->ipp_dstoptslen; 71257c478bd9Sstevel@tonic-gate } 71267c478bd9Sstevel@tonic-gate /* 71277c478bd9Sstevel@tonic-gate * Now set the last header pointer to the proto passed in 71287c478bd9Sstevel@tonic-gate */ 71297c478bd9Sstevel@tonic-gate ASSERT((int)(cp - (uint8_t *)ip6i) == (udp_ip_hdr_len - UDPH_SIZE)); 71307c478bd9Sstevel@tonic-gate *nxthdr_ptr = IPPROTO_UDP; 71317c478bd9Sstevel@tonic-gate 71327c478bd9Sstevel@tonic-gate /* Update UDP header */ 71337c478bd9Sstevel@tonic-gate udph = (udpha_t *)((uchar_t *)ip6i + udp_ip_hdr_len - UDPH_SIZE); 71347c478bd9Sstevel@tonic-gate udph->uha_dst_port = sin6->sin6_port; 71357c478bd9Sstevel@tonic-gate udph->uha_src_port = udp->udp_port; 71367c478bd9Sstevel@tonic-gate 71377c478bd9Sstevel@tonic-gate /* 71387c478bd9Sstevel@tonic-gate * Copy in the destination address 71397c478bd9Sstevel@tonic-gate */ 714045916cd2Sjpk ip6h->ip6_dst = ip6_dst; 71417c478bd9Sstevel@tonic-gate 71427c478bd9Sstevel@tonic-gate ip6h->ip6_vcf = 71437c478bd9Sstevel@tonic-gate (IPV6_DEFAULT_VERS_AND_FLOW & IPV6_VERS_AND_FLOW_MASK) | 71447c478bd9Sstevel@tonic-gate (sin6->sin6_flowinfo & ~IPV6_VERS_AND_FLOW_MASK); 71457c478bd9Sstevel@tonic-gate 71467c478bd9Sstevel@tonic-gate if (option_exists & IPPF_TCLASS) { 71477c478bd9Sstevel@tonic-gate tipp = ANCIL_OR_STICKY_PTR(IPPF_TCLASS); 71487c478bd9Sstevel@tonic-gate ip6h->ip6_vcf = IPV6_TCLASS_FLOW(ip6h->ip6_vcf, 71497c478bd9Sstevel@tonic-gate tipp->ipp_tclass); 71507c478bd9Sstevel@tonic-gate } 7151fc80c0dfSnordmark rw_exit(&udp->udp_rwlock); 71527c478bd9Sstevel@tonic-gate 71537c478bd9Sstevel@tonic-gate if (option_exists & IPPF_RTHDR) { 71547c478bd9Sstevel@tonic-gate ip6_rthdr_t *rth; 71557c478bd9Sstevel@tonic-gate 71567c478bd9Sstevel@tonic-gate /* 71577c478bd9Sstevel@tonic-gate * Perform any processing needed for source routing. 71587c478bd9Sstevel@tonic-gate * We know that all extension headers will be in the same mblk 71597c478bd9Sstevel@tonic-gate * as the IPv6 header. 71607c478bd9Sstevel@tonic-gate */ 71617c478bd9Sstevel@tonic-gate rth = ip_find_rthdr_v6(ip6h, mp1->b_wptr); 71627c478bd9Sstevel@tonic-gate if (rth != NULL && rth->ip6r_segleft != 0) { 71637c478bd9Sstevel@tonic-gate if (rth->ip6r_type != IPV6_RTHDR_TYPE_0) { 71647c478bd9Sstevel@tonic-gate /* 71657c478bd9Sstevel@tonic-gate * Drop packet - only support Type 0 routing. 71667c478bd9Sstevel@tonic-gate * Notify the application as well. 71677c478bd9Sstevel@tonic-gate */ 7168ff550d0eSmasputra *error = EPROTO; 7169ff550d0eSmasputra goto done; 71707c478bd9Sstevel@tonic-gate } 71717c478bd9Sstevel@tonic-gate 71727c478bd9Sstevel@tonic-gate /* 71737c478bd9Sstevel@tonic-gate * rth->ip6r_len is twice the number of 71747c478bd9Sstevel@tonic-gate * addresses in the header. Thus it must be even. 71757c478bd9Sstevel@tonic-gate */ 71767c478bd9Sstevel@tonic-gate if (rth->ip6r_len & 0x1) { 7177ff550d0eSmasputra *error = EPROTO; 7178ff550d0eSmasputra goto done; 71797c478bd9Sstevel@tonic-gate } 71807c478bd9Sstevel@tonic-gate /* 71817c478bd9Sstevel@tonic-gate * Shuffle the routing header and ip6_dst 71827c478bd9Sstevel@tonic-gate * addresses, and get the checksum difference 71837c478bd9Sstevel@tonic-gate * between the first hop (in ip6_dst) and 71847c478bd9Sstevel@tonic-gate * the destination (in the last routing hdr entry). 71857c478bd9Sstevel@tonic-gate */ 7186f4b3ec61Sdh csum = ip_massage_options_v6(ip6h, rth, 7187f4b3ec61Sdh us->us_netstack); 71887c478bd9Sstevel@tonic-gate /* 71897c478bd9Sstevel@tonic-gate * Verify that the first hop isn't a mapped address. 71907c478bd9Sstevel@tonic-gate * Routers along the path need to do this verification 71917c478bd9Sstevel@tonic-gate * for subsequent hops. 71927c478bd9Sstevel@tonic-gate */ 71937c478bd9Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED(&ip6h->ip6_dst)) { 7194ff550d0eSmasputra *error = EADDRNOTAVAIL; 7195ff550d0eSmasputra goto done; 71967c478bd9Sstevel@tonic-gate } 71977c478bd9Sstevel@tonic-gate 71987c478bd9Sstevel@tonic-gate cp += (rth->ip6r_len + 1)*8; 71997c478bd9Sstevel@tonic-gate } 72007c478bd9Sstevel@tonic-gate } 72017c478bd9Sstevel@tonic-gate 72027c478bd9Sstevel@tonic-gate /* count up length of UDP packet */ 72037c478bd9Sstevel@tonic-gate ip_len = (mp1->b_wptr - (unsigned char *)ip6h) - IPV6_HDR_LEN; 7204ff550d0eSmasputra if ((mp2 = mp1->b_cont) != NULL) { 7205ff550d0eSmasputra do { 7206ff550d0eSmasputra ASSERT((uintptr_t)MBLKL(mp2) <= (uintptr_t)UINT_MAX); 7207ff550d0eSmasputra ip_len += (uint32_t)MBLKL(mp2); 7208ff550d0eSmasputra } while ((mp2 = mp2->b_cont) != NULL); 72097c478bd9Sstevel@tonic-gate } 72107c478bd9Sstevel@tonic-gate 72117c478bd9Sstevel@tonic-gate /* 72127c478bd9Sstevel@tonic-gate * If the size of the packet is greater than the maximum allowed by 72137c478bd9Sstevel@tonic-gate * ip, return an error. Passing this down could cause panics because 72147c478bd9Sstevel@tonic-gate * the size will have wrapped and be inconsistent with the msg size. 72157c478bd9Sstevel@tonic-gate */ 72167c478bd9Sstevel@tonic-gate if (ip_len > IP_MAXPACKET) { 7217ff550d0eSmasputra *error = EMSGSIZE; 7218ff550d0eSmasputra goto done; 72197c478bd9Sstevel@tonic-gate } 72207c478bd9Sstevel@tonic-gate 72217c478bd9Sstevel@tonic-gate /* Store the UDP length. Subtract length of extension hdrs */ 72227c478bd9Sstevel@tonic-gate udph->uha_length = htons(ip_len + IPV6_HDR_LEN - 72237c478bd9Sstevel@tonic-gate (int)((uchar_t *)udph - (uchar_t *)ip6h)); 72247c478bd9Sstevel@tonic-gate 72257c478bd9Sstevel@tonic-gate /* 72267c478bd9Sstevel@tonic-gate * We make it easy for IP to include our pseudo header 72277c478bd9Sstevel@tonic-gate * by putting our length in uh_checksum, modified (if 72287c478bd9Sstevel@tonic-gate * we have a routing header) by the checksum difference 72297c478bd9Sstevel@tonic-gate * between the ultimate destination and first hop addresses. 72307c478bd9Sstevel@tonic-gate * Note: UDP over IPv6 must always checksum the packet. 72317c478bd9Sstevel@tonic-gate */ 72327c478bd9Sstevel@tonic-gate csum += udph->uha_length; 72337c478bd9Sstevel@tonic-gate csum = (csum & 0xFFFF) + (csum >> 16); 72347c478bd9Sstevel@tonic-gate udph->uha_checksum = (uint16_t)csum; 72357c478bd9Sstevel@tonic-gate 72367c478bd9Sstevel@tonic-gate #ifdef _LITTLE_ENDIAN 72377c478bd9Sstevel@tonic-gate ip_len = htons(ip_len); 72387c478bd9Sstevel@tonic-gate #endif 72397c478bd9Sstevel@tonic-gate ip6h->ip6_plen = ip_len; 724045916cd2Sjpk if (DB_CRED(mp) != NULL) 724145916cd2Sjpk mblk_setcred(mp1, DB_CRED(mp)); 72427c478bd9Sstevel@tonic-gate 7243ff550d0eSmasputra if (DB_TYPE(mp) != M_DATA) { 7244ff550d0eSmasputra ASSERT(mp != mp1); 7245ff550d0eSmasputra freeb(mp); 7246ff550d0eSmasputra } 7247ff550d0eSmasputra 7248ff550d0eSmasputra /* mp has been consumed and we'll return success */ 7249ff550d0eSmasputra ASSERT(*error == 0); 7250ff550d0eSmasputra mp = NULL; 72517c478bd9Sstevel@tonic-gate 72527c478bd9Sstevel@tonic-gate /* We're done. Pass the packet to IP */ 7253fc80c0dfSnordmark BUMP_MIB(&us->us_udp_mib, udpHCOutDatagrams); 7254ff550d0eSmasputra ip_output_v6(connp, mp1, q, IP_WPUT); 7255ff550d0eSmasputra 7256ff550d0eSmasputra done: 7257fc80c0dfSnordmark if (sth_wroff != 0) { 7258fc80c0dfSnordmark (void) mi_set_sth_wroff(RD(q), 7259fc80c0dfSnordmark udp->udp_max_hdr_len + us->us_wroff_extra); 7260fc80c0dfSnordmark } 7261dc3879f9Sjarrett if (hopoptsptr != NULL && !is_ancillary) { 7262dc3879f9Sjarrett kmem_free(hopoptsptr, hopoptslen); 7263dc3879f9Sjarrett hopoptsptr = NULL; 7264dc3879f9Sjarrett } 7265ff550d0eSmasputra if (*error != 0) { 7266ff550d0eSmasputra ASSERT(mp != NULL); 7267fc80c0dfSnordmark BUMP_MIB(&us->us_udp_mib, udpOutErrors); 7268ff550d0eSmasputra } 7269ff550d0eSmasputra return (mp); 72707c478bd9Sstevel@tonic-gate } 72717c478bd9Sstevel@tonic-gate 72727c478bd9Sstevel@tonic-gate static void 72737c478bd9Sstevel@tonic-gate udp_wput_other(queue_t *q, mblk_t *mp) 72747c478bd9Sstevel@tonic-gate { 72757c478bd9Sstevel@tonic-gate uchar_t *rptr = mp->b_rptr; 72767c478bd9Sstevel@tonic-gate struct datab *db; 72777c478bd9Sstevel@tonic-gate struct iocblk *iocp; 72787c478bd9Sstevel@tonic-gate cred_t *cr; 7279ff550d0eSmasputra conn_t *connp = Q_TO_CONN(q); 7280ff550d0eSmasputra udp_t *udp = connp->conn_udp; 7281f4b3ec61Sdh udp_stack_t *us; 72827c478bd9Sstevel@tonic-gate 72837c478bd9Sstevel@tonic-gate TRACE_1(TR_FAC_UDP, TR_UDP_WPUT_OTHER_START, 7284437220cdSdanmcd "udp_wput_other_start: q %p", q); 72857c478bd9Sstevel@tonic-gate 7286f4b3ec61Sdh us = udp->udp_us; 72877c478bd9Sstevel@tonic-gate db = mp->b_datap; 72887c478bd9Sstevel@tonic-gate 7289ff550d0eSmasputra cr = DB_CREDDEF(mp, connp->conn_cred); 72907c478bd9Sstevel@tonic-gate 72917c478bd9Sstevel@tonic-gate switch (db->db_type) { 72927c478bd9Sstevel@tonic-gate case M_PROTO: 72937c478bd9Sstevel@tonic-gate case M_PCPROTO: 72947c478bd9Sstevel@tonic-gate if (mp->b_wptr - rptr < sizeof (t_scalar_t)) { 72957c478bd9Sstevel@tonic-gate freemsg(mp); 72967c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7297437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "protoshort"); 72987c478bd9Sstevel@tonic-gate return; 72997c478bd9Sstevel@tonic-gate } 7300ff550d0eSmasputra switch (((t_primp_t)rptr)->type) { 73017c478bd9Sstevel@tonic-gate case T_ADDR_REQ: 73027c478bd9Sstevel@tonic-gate udp_addr_req(q, mp); 73037c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7304437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "addrreq"); 73057c478bd9Sstevel@tonic-gate return; 73067c478bd9Sstevel@tonic-gate case O_T_BIND_REQ: 73077c478bd9Sstevel@tonic-gate case T_BIND_REQ: 73087c478bd9Sstevel@tonic-gate udp_bind(q, mp); 73097c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7310437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "bindreq"); 73117c478bd9Sstevel@tonic-gate return; 73127c478bd9Sstevel@tonic-gate case T_CONN_REQ: 73137c478bd9Sstevel@tonic-gate udp_connect(q, mp); 73147c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7315437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "connreq"); 73167c478bd9Sstevel@tonic-gate return; 73177c478bd9Sstevel@tonic-gate case T_CAPABILITY_REQ: 73187c478bd9Sstevel@tonic-gate udp_capability_req(q, mp); 73197c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7320437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "capabreq"); 73217c478bd9Sstevel@tonic-gate return; 73227c478bd9Sstevel@tonic-gate case T_INFO_REQ: 73237c478bd9Sstevel@tonic-gate udp_info_req(q, mp); 73247c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7325437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "inforeq"); 73267c478bd9Sstevel@tonic-gate return; 73277c478bd9Sstevel@tonic-gate case T_UNITDATA_REQ: 73287c478bd9Sstevel@tonic-gate /* 73297c478bd9Sstevel@tonic-gate * If a T_UNITDATA_REQ gets here, the address must 73307c478bd9Sstevel@tonic-gate * be bad. Valid T_UNITDATA_REQs are handled 73317c478bd9Sstevel@tonic-gate * in udp_wput. 73327c478bd9Sstevel@tonic-gate */ 7333ff550d0eSmasputra udp_ud_err(q, mp, NULL, 0, EADDRNOTAVAIL); 73347c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7335437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "unitdatareq"); 73367c478bd9Sstevel@tonic-gate return; 73377c478bd9Sstevel@tonic-gate case T_UNBIND_REQ: 73387c478bd9Sstevel@tonic-gate udp_unbind(q, mp); 73397c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 73407c478bd9Sstevel@tonic-gate "udp_wput_other_end: q %p (%S)", q, "unbindreq"); 73417c478bd9Sstevel@tonic-gate return; 73427c478bd9Sstevel@tonic-gate case T_SVR4_OPTMGMT_REQ: 7343fc80c0dfSnordmark if (!snmpcom_req(q, mp, udp_snmp_set, ip_snmp_get, 7344fc80c0dfSnordmark cr)) { 7345fc80c0dfSnordmark (void) svr4_optcom_req(q, 7346fc80c0dfSnordmark mp, cr, &udp_opt_obj, B_TRUE); 7347fc80c0dfSnordmark } 73487c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7349437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "optmgmtreq"); 73507c478bd9Sstevel@tonic-gate return; 73517c478bd9Sstevel@tonic-gate 73527c478bd9Sstevel@tonic-gate case T_OPTMGMT_REQ: 7353fc80c0dfSnordmark (void) tpi_optcom_req(q, mp, cr, &udp_opt_obj, B_TRUE); 73547c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7355437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "optmgmtreq"); 73567c478bd9Sstevel@tonic-gate return; 73577c478bd9Sstevel@tonic-gate 73587c478bd9Sstevel@tonic-gate case T_DISCON_REQ: 73597c478bd9Sstevel@tonic-gate udp_disconnect(q, mp); 73607c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7361437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "disconreq"); 73627c478bd9Sstevel@tonic-gate return; 73637c478bd9Sstevel@tonic-gate 73647c478bd9Sstevel@tonic-gate /* The following TPI message is not supported by udp. */ 73657c478bd9Sstevel@tonic-gate case O_T_CONN_RES: 73667c478bd9Sstevel@tonic-gate case T_CONN_RES: 73677c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TNOTSUPPORT, 0); 73687c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7369437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, 7370437220cdSdanmcd "connres/disconreq"); 73717c478bd9Sstevel@tonic-gate return; 73727c478bd9Sstevel@tonic-gate 73737c478bd9Sstevel@tonic-gate /* The following 3 TPI messages are illegal for udp. */ 73747c478bd9Sstevel@tonic-gate case T_DATA_REQ: 73757c478bd9Sstevel@tonic-gate case T_EXDATA_REQ: 73767c478bd9Sstevel@tonic-gate case T_ORDREL_REQ: 73777c478bd9Sstevel@tonic-gate udp_err_ack(q, mp, TNOTSUPPORT, 0); 73787c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7379437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, 7380437220cdSdanmcd "data/exdata/ordrel"); 73817c478bd9Sstevel@tonic-gate return; 73827c478bd9Sstevel@tonic-gate default: 73837c478bd9Sstevel@tonic-gate break; 73847c478bd9Sstevel@tonic-gate } 73857c478bd9Sstevel@tonic-gate break; 73867c478bd9Sstevel@tonic-gate case M_FLUSH: 73877c478bd9Sstevel@tonic-gate if (*rptr & FLUSHW) 73887c478bd9Sstevel@tonic-gate flushq(q, FLUSHDATA); 73897c478bd9Sstevel@tonic-gate break; 73907c478bd9Sstevel@tonic-gate case M_IOCTL: 73917c478bd9Sstevel@tonic-gate iocp = (struct iocblk *)mp->b_rptr; 73927c478bd9Sstevel@tonic-gate switch (iocp->ioc_cmd) { 73937c478bd9Sstevel@tonic-gate case TI_GETPEERNAME: 73947c478bd9Sstevel@tonic-gate if (udp->udp_state != TS_DATA_XFER) { 73957c478bd9Sstevel@tonic-gate /* 73967c478bd9Sstevel@tonic-gate * If a default destination address has not 73977c478bd9Sstevel@tonic-gate * been associated with the stream, then we 73987c478bd9Sstevel@tonic-gate * don't know the peer's name. 73997c478bd9Sstevel@tonic-gate */ 74007c478bd9Sstevel@tonic-gate iocp->ioc_error = ENOTCONN; 74017c478bd9Sstevel@tonic-gate iocp->ioc_count = 0; 74027c478bd9Sstevel@tonic-gate mp->b_datap->db_type = M_IOCACK; 7403fc80c0dfSnordmark qreply(q, mp); 74047c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7405437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, 7406437220cdSdanmcd "getpeername"); 74077c478bd9Sstevel@tonic-gate return; 74087c478bd9Sstevel@tonic-gate } 74097c478bd9Sstevel@tonic-gate /* FALLTHRU */ 74107c478bd9Sstevel@tonic-gate case TI_GETMYNAME: { 74117c478bd9Sstevel@tonic-gate /* 74127c478bd9Sstevel@tonic-gate * For TI_GETPEERNAME and TI_GETMYNAME, we first 74137c478bd9Sstevel@tonic-gate * need to copyin the user's strbuf structure. 74147c478bd9Sstevel@tonic-gate * Processing will continue in the M_IOCDATA case 74157c478bd9Sstevel@tonic-gate * below. 74167c478bd9Sstevel@tonic-gate */ 74177c478bd9Sstevel@tonic-gate mi_copyin(q, mp, NULL, 74187c478bd9Sstevel@tonic-gate SIZEOF_STRUCT(strbuf, iocp->ioc_flag)); 74197c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7420437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "getmyname"); 74217c478bd9Sstevel@tonic-gate return; 74227c478bd9Sstevel@tonic-gate } 74237c478bd9Sstevel@tonic-gate case ND_SET: 74247c478bd9Sstevel@tonic-gate /* nd_getset performs the necessary checking */ 74257c478bd9Sstevel@tonic-gate case ND_GET: 7426f4b3ec61Sdh if (nd_getset(q, us->us_nd, mp)) { 7427fc80c0dfSnordmark qreply(q, mp); 74287c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7429437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "get"); 74307c478bd9Sstevel@tonic-gate return; 74317c478bd9Sstevel@tonic-gate } 74327c478bd9Sstevel@tonic-gate break; 7433ff550d0eSmasputra case _SIOCSOCKFALLBACK: 7434ff550d0eSmasputra /* 7435ff550d0eSmasputra * Either sockmod is about to be popped and the 7436ff550d0eSmasputra * socket would now be treated as a plain stream, 7437ff550d0eSmasputra * or a module is about to be pushed so we could 7438ff550d0eSmasputra * no longer use read-side synchronous stream. 7439ff550d0eSmasputra * Drain any queued data and disable direct sockfs 7440ff550d0eSmasputra * interface from now on. 7441ff550d0eSmasputra */ 7442ff550d0eSmasputra if (!udp->udp_issocket) { 7443ff550d0eSmasputra DB_TYPE(mp) = M_IOCNAK; 7444ff550d0eSmasputra iocp->ioc_error = EINVAL; 7445ff550d0eSmasputra } else { 7446ff550d0eSmasputra udp->udp_issocket = B_FALSE; 7447ff550d0eSmasputra if (udp->udp_direct_sockfs) { 7448ff550d0eSmasputra /* 7449ff550d0eSmasputra * Disable read-side synchronous 7450ff550d0eSmasputra * stream interface and drain any 7451ff550d0eSmasputra * queued data. 7452ff550d0eSmasputra */ 7453fc80c0dfSnordmark udp_rcv_drain(RD(q), udp, 7454ff550d0eSmasputra B_FALSE); 7455ff550d0eSmasputra ASSERT(!udp->udp_direct_sockfs); 7456f4b3ec61Sdh UDP_STAT(us, udp_sock_fallback); 7457ff550d0eSmasputra } 7458ff550d0eSmasputra DB_TYPE(mp) = M_IOCACK; 7459ff550d0eSmasputra iocp->ioc_error = 0; 7460ff550d0eSmasputra } 7461ff550d0eSmasputra iocp->ioc_count = 0; 7462ff550d0eSmasputra iocp->ioc_rval = 0; 7463fc80c0dfSnordmark qreply(q, mp); 7464ff550d0eSmasputra return; 74657c478bd9Sstevel@tonic-gate default: 74667c478bd9Sstevel@tonic-gate break; 74677c478bd9Sstevel@tonic-gate } 74687c478bd9Sstevel@tonic-gate break; 74697c478bd9Sstevel@tonic-gate case M_IOCDATA: 74707c478bd9Sstevel@tonic-gate udp_wput_iocdata(q, mp); 74717c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7472437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "iocdata"); 74737c478bd9Sstevel@tonic-gate return; 74747c478bd9Sstevel@tonic-gate default: 74757c478bd9Sstevel@tonic-gate /* Unrecognized messages are passed through without change. */ 74767c478bd9Sstevel@tonic-gate break; 74777c478bd9Sstevel@tonic-gate } 74787c478bd9Sstevel@tonic-gate TRACE_2(TR_FAC_UDP, TR_UDP_WPUT_OTHER_END, 7479437220cdSdanmcd "udp_wput_other_end: q %p (%S)", q, "end"); 7480ff550d0eSmasputra ip_output(connp, mp, q, IP_WPUT); 7481ff550d0eSmasputra } 7482ff550d0eSmasputra 74837c478bd9Sstevel@tonic-gate /* 74847c478bd9Sstevel@tonic-gate * udp_wput_iocdata is called by udp_wput_other to handle all M_IOCDATA 74857c478bd9Sstevel@tonic-gate * messages. 74867c478bd9Sstevel@tonic-gate */ 74877c478bd9Sstevel@tonic-gate static void 74887c478bd9Sstevel@tonic-gate udp_wput_iocdata(queue_t *q, mblk_t *mp) 74897c478bd9Sstevel@tonic-gate { 74907c478bd9Sstevel@tonic-gate mblk_t *mp1; 74917c478bd9Sstevel@tonic-gate STRUCT_HANDLE(strbuf, sb); 74927c478bd9Sstevel@tonic-gate uint16_t port; 74937c478bd9Sstevel@tonic-gate in6_addr_t v6addr; 74947c478bd9Sstevel@tonic-gate ipaddr_t v4addr; 74957c478bd9Sstevel@tonic-gate uint32_t flowinfo = 0; 74967c478bd9Sstevel@tonic-gate int addrlen; 7497ff550d0eSmasputra udp_t *udp = Q_TO_UDP(q); 74987c478bd9Sstevel@tonic-gate 74997c478bd9Sstevel@tonic-gate /* Make sure it is one of ours. */ 75007c478bd9Sstevel@tonic-gate switch (((struct iocblk *)mp->b_rptr)->ioc_cmd) { 75017c478bd9Sstevel@tonic-gate case TI_GETMYNAME: 75027c478bd9Sstevel@tonic-gate case TI_GETPEERNAME: 75037c478bd9Sstevel@tonic-gate break; 75047c478bd9Sstevel@tonic-gate default: 75055597b60aSnordmark ip_output(udp->udp_connp, mp, q, IP_WPUT); 75067c478bd9Sstevel@tonic-gate return; 75077c478bd9Sstevel@tonic-gate } 7508ff550d0eSmasputra 75097c478bd9Sstevel@tonic-gate switch (mi_copy_state(q, mp, &mp1)) { 75107c478bd9Sstevel@tonic-gate case -1: 75117c478bd9Sstevel@tonic-gate return; 75127c478bd9Sstevel@tonic-gate case MI_COPY_CASE(MI_COPY_IN, 1): 75137c478bd9Sstevel@tonic-gate break; 75147c478bd9Sstevel@tonic-gate case MI_COPY_CASE(MI_COPY_OUT, 1): 75157c478bd9Sstevel@tonic-gate /* 75167c478bd9Sstevel@tonic-gate * The address has been copied out, so now 75177c478bd9Sstevel@tonic-gate * copyout the strbuf. 75187c478bd9Sstevel@tonic-gate */ 75197c478bd9Sstevel@tonic-gate mi_copyout(q, mp); 75207c478bd9Sstevel@tonic-gate return; 75217c478bd9Sstevel@tonic-gate case MI_COPY_CASE(MI_COPY_OUT, 2): 75227c478bd9Sstevel@tonic-gate /* 75237c478bd9Sstevel@tonic-gate * The address and strbuf have been copied out. 75247c478bd9Sstevel@tonic-gate * We're done, so just acknowledge the original 75257c478bd9Sstevel@tonic-gate * M_IOCTL. 75267c478bd9Sstevel@tonic-gate */ 75277c478bd9Sstevel@tonic-gate mi_copy_done(q, mp, 0); 75287c478bd9Sstevel@tonic-gate return; 75297c478bd9Sstevel@tonic-gate default: 75307c478bd9Sstevel@tonic-gate /* 75317c478bd9Sstevel@tonic-gate * Something strange has happened, so acknowledge 75327c478bd9Sstevel@tonic-gate * the original M_IOCTL with an EPROTO error. 75337c478bd9Sstevel@tonic-gate */ 75347c478bd9Sstevel@tonic-gate mi_copy_done(q, mp, EPROTO); 75357c478bd9Sstevel@tonic-gate return; 75367c478bd9Sstevel@tonic-gate } 75377c478bd9Sstevel@tonic-gate 75387c478bd9Sstevel@tonic-gate /* 75397c478bd9Sstevel@tonic-gate * Now we have the strbuf structure for TI_GETMYNAME 75407c478bd9Sstevel@tonic-gate * and TI_GETPEERNAME. Next we copyout the requested 75417c478bd9Sstevel@tonic-gate * address and then we'll copyout the strbuf. 75427c478bd9Sstevel@tonic-gate */ 75437c478bd9Sstevel@tonic-gate STRUCT_SET_HANDLE(sb, ((struct iocblk *)mp->b_rptr)->ioc_flag, 75447c478bd9Sstevel@tonic-gate (void *)mp1->b_rptr); 75457c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) 75467c478bd9Sstevel@tonic-gate addrlen = sizeof (sin_t); 75477c478bd9Sstevel@tonic-gate else 75487c478bd9Sstevel@tonic-gate addrlen = sizeof (sin6_t); 75497c478bd9Sstevel@tonic-gate 75507c478bd9Sstevel@tonic-gate if (STRUCT_FGET(sb, maxlen) < addrlen) { 75517c478bd9Sstevel@tonic-gate mi_copy_done(q, mp, EINVAL); 75527c478bd9Sstevel@tonic-gate return; 75537c478bd9Sstevel@tonic-gate } 75547c478bd9Sstevel@tonic-gate switch (((struct iocblk *)mp->b_rptr)->ioc_cmd) { 75557c478bd9Sstevel@tonic-gate case TI_GETMYNAME: 75567c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) { 75577c478bd9Sstevel@tonic-gate ASSERT(udp->udp_ipversion == IPV4_VERSION); 75587c478bd9Sstevel@tonic-gate if (!IN6_IS_ADDR_V4MAPPED_ANY(&udp->udp_v6src) && 75597c478bd9Sstevel@tonic-gate !IN6_IS_ADDR_UNSPECIFIED(&udp->udp_v6src)) { 75607c478bd9Sstevel@tonic-gate v4addr = V4_PART_OF_V6(udp->udp_v6src); 75617c478bd9Sstevel@tonic-gate } else { 75627c478bd9Sstevel@tonic-gate /* 75637c478bd9Sstevel@tonic-gate * INADDR_ANY 75647c478bd9Sstevel@tonic-gate * udp_v6src is not set, we might be bound to 75657c478bd9Sstevel@tonic-gate * broadcast/multicast. Use udp_bound_v6src as 75667c478bd9Sstevel@tonic-gate * local address instead (that could 75677c478bd9Sstevel@tonic-gate * also still be INADDR_ANY) 75687c478bd9Sstevel@tonic-gate */ 75697c478bd9Sstevel@tonic-gate v4addr = V4_PART_OF_V6(udp->udp_bound_v6src); 75707c478bd9Sstevel@tonic-gate } 75717c478bd9Sstevel@tonic-gate } else { 75727c478bd9Sstevel@tonic-gate /* udp->udp_family == AF_INET6 */ 75737c478bd9Sstevel@tonic-gate if (!IN6_IS_ADDR_UNSPECIFIED(&udp->udp_v6src)) { 75747c478bd9Sstevel@tonic-gate v6addr = udp->udp_v6src; 75757c478bd9Sstevel@tonic-gate } else { 75767c478bd9Sstevel@tonic-gate /* 75777c478bd9Sstevel@tonic-gate * UNSPECIFIED 75787c478bd9Sstevel@tonic-gate * udp_v6src is not set, we might be bound to 75797c478bd9Sstevel@tonic-gate * broadcast/multicast. Use udp_bound_v6src as 75807c478bd9Sstevel@tonic-gate * local address instead (that could 75817c478bd9Sstevel@tonic-gate * also still be UNSPECIFIED) 75827c478bd9Sstevel@tonic-gate */ 75837c478bd9Sstevel@tonic-gate v6addr = udp->udp_bound_v6src; 75847c478bd9Sstevel@tonic-gate } 75857c478bd9Sstevel@tonic-gate } 75867c478bd9Sstevel@tonic-gate port = udp->udp_port; 75877c478bd9Sstevel@tonic-gate break; 75887c478bd9Sstevel@tonic-gate case TI_GETPEERNAME: 7589ff550d0eSmasputra if (udp->udp_state != TS_DATA_XFER) { 7590ff550d0eSmasputra mi_copy_done(q, mp, ENOTCONN); 7591ff550d0eSmasputra return; 7592ff550d0eSmasputra } 75937c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) { 75947c478bd9Sstevel@tonic-gate ASSERT(udp->udp_ipversion == IPV4_VERSION); 75957c478bd9Sstevel@tonic-gate v4addr = V4_PART_OF_V6(udp->udp_v6dst); 75967c478bd9Sstevel@tonic-gate } else { 75977c478bd9Sstevel@tonic-gate /* udp->udp_family == AF_INET6) */ 75987c478bd9Sstevel@tonic-gate v6addr = udp->udp_v6dst; 75997c478bd9Sstevel@tonic-gate flowinfo = udp->udp_flowinfo; 76007c478bd9Sstevel@tonic-gate } 76017c478bd9Sstevel@tonic-gate port = udp->udp_dstport; 76027c478bd9Sstevel@tonic-gate break; 76037c478bd9Sstevel@tonic-gate default: 76047c478bd9Sstevel@tonic-gate mi_copy_done(q, mp, EPROTO); 76057c478bd9Sstevel@tonic-gate return; 76067c478bd9Sstevel@tonic-gate } 76077c478bd9Sstevel@tonic-gate mp1 = mi_copyout_alloc(q, mp, STRUCT_FGETP(sb, buf), addrlen, B_TRUE); 76087c478bd9Sstevel@tonic-gate if (!mp1) 76097c478bd9Sstevel@tonic-gate return; 76107c478bd9Sstevel@tonic-gate 76117c478bd9Sstevel@tonic-gate if (udp->udp_family == AF_INET) { 76127c478bd9Sstevel@tonic-gate sin_t *sin; 76137c478bd9Sstevel@tonic-gate 76147c478bd9Sstevel@tonic-gate STRUCT_FSET(sb, len, (int)sizeof (sin_t)); 76157c478bd9Sstevel@tonic-gate sin = (sin_t *)mp1->b_rptr; 76167c478bd9Sstevel@tonic-gate mp1->b_wptr = (uchar_t *)&sin[1]; 76177c478bd9Sstevel@tonic-gate *sin = sin_null; 76187c478bd9Sstevel@tonic-gate sin->sin_family = AF_INET; 76197c478bd9Sstevel@tonic-gate sin->sin_addr.s_addr = v4addr; 76207c478bd9Sstevel@tonic-gate sin->sin_port = port; 76217c478bd9Sstevel@tonic-gate } else { 76227c478bd9Sstevel@tonic-gate /* udp->udp_family == AF_INET6 */ 76237c478bd9Sstevel@tonic-gate sin6_t *sin6; 76247c478bd9Sstevel@tonic-gate 76257c478bd9Sstevel@tonic-gate STRUCT_FSET(sb, len, (int)sizeof (sin6_t)); 76267c478bd9Sstevel@tonic-gate sin6 = (sin6_t *)mp1->b_rptr; 76277c478bd9Sstevel@tonic-gate mp1->b_wptr = (uchar_t *)&sin6[1]; 76287c478bd9Sstevel@tonic-gate *sin6 = sin6_null; 76297c478bd9Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 76307c478bd9Sstevel@tonic-gate sin6->sin6_flowinfo = flowinfo; 76317c478bd9Sstevel@tonic-gate sin6->sin6_addr = v6addr; 76327c478bd9Sstevel@tonic-gate sin6->sin6_port = port; 76337c478bd9Sstevel@tonic-gate } 76347c478bd9Sstevel@tonic-gate /* Copy out the address */ 76357c478bd9Sstevel@tonic-gate mi_copyout(q, mp); 76367c478bd9Sstevel@tonic-gate } 76377c478bd9Sstevel@tonic-gate 76387c478bd9Sstevel@tonic-gate 76397c478bd9Sstevel@tonic-gate static int 76407c478bd9Sstevel@tonic-gate udp_unitdata_opt_process(queue_t *q, mblk_t *mp, int *errorp, 764145916cd2Sjpk udpattrs_t *udpattrs) 76427c478bd9Sstevel@tonic-gate { 76437c478bd9Sstevel@tonic-gate struct T_unitdata_req *udreqp; 76447c478bd9Sstevel@tonic-gate int is_absreq_failure; 76457c478bd9Sstevel@tonic-gate cred_t *cr; 7646ff550d0eSmasputra conn_t *connp = Q_TO_CONN(q); 76477c478bd9Sstevel@tonic-gate 7648ff550d0eSmasputra ASSERT(((t_primp_t)mp->b_rptr)->type); 76497c478bd9Sstevel@tonic-gate 7650ff550d0eSmasputra cr = DB_CREDDEF(mp, connp->conn_cred); 76517c478bd9Sstevel@tonic-gate 76527c478bd9Sstevel@tonic-gate udreqp = (struct T_unitdata_req *)mp->b_rptr; 76537c478bd9Sstevel@tonic-gate 7654fc80c0dfSnordmark *errorp = tpi_optcom_buf(q, mp, &udreqp->OPT_length, 76557c478bd9Sstevel@tonic-gate udreqp->OPT_offset, cr, &udp_opt_obj, 765645916cd2Sjpk udpattrs, &is_absreq_failure); 76577c478bd9Sstevel@tonic-gate 76587c478bd9Sstevel@tonic-gate if (*errorp != 0) { 76597c478bd9Sstevel@tonic-gate /* 76607c478bd9Sstevel@tonic-gate * Note: No special action needed in this 76617c478bd9Sstevel@tonic-gate * module for "is_absreq_failure" 76627c478bd9Sstevel@tonic-gate */ 76637c478bd9Sstevel@tonic-gate return (-1); /* failure */ 76647c478bd9Sstevel@tonic-gate } 76657c478bd9Sstevel@tonic-gate ASSERT(is_absreq_failure == 0); 76667c478bd9Sstevel@tonic-gate return (0); /* success */ 76677c478bd9Sstevel@tonic-gate } 76687c478bd9Sstevel@tonic-gate 76697c478bd9Sstevel@tonic-gate void 76707c478bd9Sstevel@tonic-gate udp_ddi_init(void) 76717c478bd9Sstevel@tonic-gate { 76727c478bd9Sstevel@tonic-gate udp_max_optsize = optcom_max_optsize(udp_opt_obj.odb_opt_des_arr, 76737c478bd9Sstevel@tonic-gate udp_opt_obj.odb_opt_arr_cnt); 76747c478bd9Sstevel@tonic-gate 7675f4b3ec61Sdh /* 7676f4b3ec61Sdh * We want to be informed each time a stack is created or 7677f4b3ec61Sdh * destroyed in the kernel, so we can maintain the 7678f4b3ec61Sdh * set of udp_stack_t's. 7679f4b3ec61Sdh */ 7680f4b3ec61Sdh netstack_register(NS_UDP, udp_stack_init, NULL, udp_stack_fini); 7681f4b3ec61Sdh } 7682f4b3ec61Sdh 7683f4b3ec61Sdh void 7684f4b3ec61Sdh udp_ddi_destroy(void) 7685f4b3ec61Sdh { 7686f4b3ec61Sdh netstack_unregister(NS_UDP); 7687f4b3ec61Sdh } 7688f4b3ec61Sdh 7689f4b3ec61Sdh /* 7690f4b3ec61Sdh * Initialize the UDP stack instance. 7691f4b3ec61Sdh */ 7692f4b3ec61Sdh static void * 7693f4b3ec61Sdh udp_stack_init(netstackid_t stackid, netstack_t *ns) 7694f4b3ec61Sdh { 7695f4b3ec61Sdh udp_stack_t *us; 7696f4b3ec61Sdh udpparam_t *pa; 7697f4b3ec61Sdh int i; 7698f4b3ec61Sdh 7699f4b3ec61Sdh us = (udp_stack_t *)kmem_zalloc(sizeof (*us), KM_SLEEP); 7700f4b3ec61Sdh us->us_netstack = ns; 7701f4b3ec61Sdh 7702f4b3ec61Sdh us->us_num_epriv_ports = UDP_NUM_EPRIV_PORTS; 7703f4b3ec61Sdh us->us_epriv_ports[0] = 2049; 7704f4b3ec61Sdh us->us_epriv_ports[1] = 4045; 7705f4b3ec61Sdh 7706f4b3ec61Sdh /* 7707f4b3ec61Sdh * The smallest anonymous port in the priviledged port range which UDP 7708f4b3ec61Sdh * looks for free port. Use in the option UDP_ANONPRIVBIND. 7709f4b3ec61Sdh */ 7710f4b3ec61Sdh us->us_min_anonpriv_port = 512; 7711f4b3ec61Sdh 7712f4b3ec61Sdh us->us_bind_fanout_size = udp_bind_fanout_size; 7713f4b3ec61Sdh 7714f4b3ec61Sdh /* Roundup variable that might have been modified in /etc/system */ 7715f4b3ec61Sdh if (us->us_bind_fanout_size & (us->us_bind_fanout_size - 1)) { 77167c478bd9Sstevel@tonic-gate /* Not a power of two. Round up to nearest power of two */ 77177c478bd9Sstevel@tonic-gate for (i = 0; i < 31; i++) { 7718f4b3ec61Sdh if (us->us_bind_fanout_size < (1 << i)) 77197c478bd9Sstevel@tonic-gate break; 77207c478bd9Sstevel@tonic-gate } 7721f4b3ec61Sdh us->us_bind_fanout_size = 1 << i; 77227c478bd9Sstevel@tonic-gate } 7723f4b3ec61Sdh us->us_bind_fanout = kmem_zalloc(us->us_bind_fanout_size * 77247c478bd9Sstevel@tonic-gate sizeof (udp_fanout_t), KM_SLEEP); 7725f4b3ec61Sdh for (i = 0; i < us->us_bind_fanout_size; i++) { 7726f4b3ec61Sdh mutex_init(&us->us_bind_fanout[i].uf_lock, NULL, MUTEX_DEFAULT, 77277c478bd9Sstevel@tonic-gate NULL); 77287c478bd9Sstevel@tonic-gate } 7729ff550d0eSmasputra 7730f4b3ec61Sdh pa = (udpparam_t *)kmem_alloc(sizeof (udp_param_arr), KM_SLEEP); 7731ff550d0eSmasputra 7732f4b3ec61Sdh us->us_param_arr = pa; 7733f4b3ec61Sdh bcopy(udp_param_arr, us->us_param_arr, sizeof (udp_param_arr)); 7734f4b3ec61Sdh 7735f4b3ec61Sdh (void) udp_param_register(&us->us_nd, 7736f4b3ec61Sdh us->us_param_arr, A_CNT(udp_param_arr)); 7737f4b3ec61Sdh 7738f4b3ec61Sdh us->us_kstat = udp_kstat2_init(stackid, &us->us_statistics); 7739f4b3ec61Sdh us->us_mibkp = udp_kstat_init(stackid); 7740f4b3ec61Sdh return (us); 77417c478bd9Sstevel@tonic-gate } 77427c478bd9Sstevel@tonic-gate 7743f4b3ec61Sdh /* 7744f4b3ec61Sdh * Free the UDP stack instance. 7745f4b3ec61Sdh */ 7746f4b3ec61Sdh static void 7747f4b3ec61Sdh udp_stack_fini(netstackid_t stackid, void *arg) 77487c478bd9Sstevel@tonic-gate { 7749f4b3ec61Sdh udp_stack_t *us = (udp_stack_t *)arg; 77507c478bd9Sstevel@tonic-gate int i; 77517c478bd9Sstevel@tonic-gate 7752f4b3ec61Sdh for (i = 0; i < us->us_bind_fanout_size; i++) { 7753f4b3ec61Sdh mutex_destroy(&us->us_bind_fanout[i].uf_lock); 77547c478bd9Sstevel@tonic-gate } 7755ff550d0eSmasputra 7756f4b3ec61Sdh kmem_free(us->us_bind_fanout, us->us_bind_fanout_size * 77577c478bd9Sstevel@tonic-gate sizeof (udp_fanout_t)); 7758ff550d0eSmasputra 7759f4b3ec61Sdh us->us_bind_fanout = NULL; 77607c478bd9Sstevel@tonic-gate 7761f4b3ec61Sdh nd_free(&us->us_nd); 7762f4b3ec61Sdh kmem_free(us->us_param_arr, sizeof (udp_param_arr)); 7763f4b3ec61Sdh us->us_param_arr = NULL; 7764f4b3ec61Sdh 7765f4b3ec61Sdh udp_kstat_fini(stackid, us->us_mibkp); 7766f4b3ec61Sdh us->us_mibkp = NULL; 7767f4b3ec61Sdh 7768f4b3ec61Sdh udp_kstat2_fini(stackid, us->us_kstat); 7769f4b3ec61Sdh us->us_kstat = NULL; 7770f4b3ec61Sdh bzero(&us->us_statistics, sizeof (us->us_statistics)); 7771f4b3ec61Sdh kmem_free(us, sizeof (*us)); 7772f4b3ec61Sdh } 7773f4b3ec61Sdh 7774f4b3ec61Sdh static void * 7775f4b3ec61Sdh udp_kstat2_init(netstackid_t stackid, udp_stat_t *us_statisticsp) 7776f4b3ec61Sdh { 7777f4b3ec61Sdh kstat_t *ksp; 7778f4b3ec61Sdh 7779f4b3ec61Sdh udp_stat_t template = { 7780f4b3ec61Sdh { "udp_ip_send", KSTAT_DATA_UINT64 }, 7781f4b3ec61Sdh { "udp_ip_ire_send", KSTAT_DATA_UINT64 }, 7782f4b3ec61Sdh { "udp_ire_null", KSTAT_DATA_UINT64 }, 7783f4b3ec61Sdh { "udp_drain", KSTAT_DATA_UINT64 }, 7784f4b3ec61Sdh { "udp_sock_fallback", KSTAT_DATA_UINT64 }, 7785f4b3ec61Sdh { "udp_rrw_busy", KSTAT_DATA_UINT64 }, 7786f4b3ec61Sdh { "udp_rrw_msgcnt", KSTAT_DATA_UINT64 }, 7787f4b3ec61Sdh { "udp_out_sw_cksum", KSTAT_DATA_UINT64 }, 7788f4b3ec61Sdh { "udp_out_sw_cksum_bytes", KSTAT_DATA_UINT64 }, 7789f4b3ec61Sdh { "udp_out_opt", KSTAT_DATA_UINT64 }, 7790f4b3ec61Sdh { "udp_out_err_notconn", KSTAT_DATA_UINT64 }, 7791f4b3ec61Sdh { "udp_out_err_output", KSTAT_DATA_UINT64 }, 7792f4b3ec61Sdh { "udp_out_err_tudr", KSTAT_DATA_UINT64 }, 7793f4b3ec61Sdh { "udp_in_pktinfo", KSTAT_DATA_UINT64 }, 7794f4b3ec61Sdh { "udp_in_recvdstaddr", KSTAT_DATA_UINT64 }, 7795f4b3ec61Sdh { "udp_in_recvopts", KSTAT_DATA_UINT64 }, 7796f4b3ec61Sdh { "udp_in_recvif", KSTAT_DATA_UINT64 }, 7797f4b3ec61Sdh { "udp_in_recvslla", KSTAT_DATA_UINT64 }, 7798f4b3ec61Sdh { "udp_in_recvucred", KSTAT_DATA_UINT64 }, 7799f4b3ec61Sdh { "udp_in_recvttl", KSTAT_DATA_UINT64 }, 7800f4b3ec61Sdh { "udp_in_recvhopopts", KSTAT_DATA_UINT64 }, 7801f4b3ec61Sdh { "udp_in_recvhoplimit", KSTAT_DATA_UINT64 }, 7802f4b3ec61Sdh { "udp_in_recvdstopts", KSTAT_DATA_UINT64 }, 7803f4b3ec61Sdh { "udp_in_recvrtdstopts", KSTAT_DATA_UINT64 }, 7804f4b3ec61Sdh { "udp_in_recvrthdr", KSTAT_DATA_UINT64 }, 7805f4b3ec61Sdh { "udp_in_recvpktinfo", KSTAT_DATA_UINT64 }, 7806f4b3ec61Sdh { "udp_in_recvtclass", KSTAT_DATA_UINT64 }, 7807f4b3ec61Sdh { "udp_in_timestamp", KSTAT_DATA_UINT64 }, 7808f4b3ec61Sdh #ifdef DEBUG 7809f4b3ec61Sdh { "udp_data_conn", KSTAT_DATA_UINT64 }, 7810f4b3ec61Sdh { "udp_data_notconn", KSTAT_DATA_UINT64 }, 7811f4b3ec61Sdh #endif 7812f4b3ec61Sdh }; 7813f4b3ec61Sdh 7814f4b3ec61Sdh ksp = kstat_create_netstack(UDP_MOD_NAME, 0, "udpstat", "net", 7815f4b3ec61Sdh KSTAT_TYPE_NAMED, sizeof (template) / sizeof (kstat_named_t), 7816f4b3ec61Sdh KSTAT_FLAG_VIRTUAL, stackid); 7817f4b3ec61Sdh 7818f4b3ec61Sdh if (ksp == NULL) 7819f4b3ec61Sdh return (NULL); 7820f4b3ec61Sdh 7821f4b3ec61Sdh bcopy(&template, us_statisticsp, sizeof (template)); 7822f4b3ec61Sdh ksp->ks_data = (void *)us_statisticsp; 7823f4b3ec61Sdh ksp->ks_private = (void *)(uintptr_t)stackid; 7824f4b3ec61Sdh 7825f4b3ec61Sdh kstat_install(ksp); 7826f4b3ec61Sdh return (ksp); 78277c478bd9Sstevel@tonic-gate } 78287c478bd9Sstevel@tonic-gate 78297c478bd9Sstevel@tonic-gate static void 7830f4b3ec61Sdh udp_kstat2_fini(netstackid_t stackid, kstat_t *ksp) 78317c478bd9Sstevel@tonic-gate { 7832f4b3ec61Sdh if (ksp != NULL) { 7833f4b3ec61Sdh ASSERT(stackid == (netstackid_t)(uintptr_t)ksp->ks_private); 7834f4b3ec61Sdh kstat_delete_netstack(ksp, stackid); 7835f4b3ec61Sdh } 7836f4b3ec61Sdh } 7837f4b3ec61Sdh 7838f4b3ec61Sdh static void * 7839f4b3ec61Sdh udp_kstat_init(netstackid_t stackid) 7840f4b3ec61Sdh { 7841f4b3ec61Sdh kstat_t *ksp; 7842f4b3ec61Sdh 78437c478bd9Sstevel@tonic-gate udp_named_kstat_t template = { 78443173664eSapersson { "inDatagrams", KSTAT_DATA_UINT64, 0 }, 78457c478bd9Sstevel@tonic-gate { "inErrors", KSTAT_DATA_UINT32, 0 }, 78463173664eSapersson { "outDatagrams", KSTAT_DATA_UINT64, 0 }, 78477c478bd9Sstevel@tonic-gate { "entrySize", KSTAT_DATA_INT32, 0 }, 78487c478bd9Sstevel@tonic-gate { "entry6Size", KSTAT_DATA_INT32, 0 }, 78497c478bd9Sstevel@tonic-gate { "outErrors", KSTAT_DATA_UINT32, 0 }, 78507c478bd9Sstevel@tonic-gate }; 78517c478bd9Sstevel@tonic-gate 7852f4b3ec61Sdh ksp = kstat_create_netstack(UDP_MOD_NAME, 0, UDP_MOD_NAME, "mib2", 7853f4b3ec61Sdh KSTAT_TYPE_NAMED, 7854f4b3ec61Sdh NUM_OF_FIELDS(udp_named_kstat_t), 0, stackid); 7855ff550d0eSmasputra 7856f4b3ec61Sdh if (ksp == NULL || ksp->ks_data == NULL) 7857f4b3ec61Sdh return (NULL); 78587c478bd9Sstevel@tonic-gate 78597c478bd9Sstevel@tonic-gate template.entrySize.value.ui32 = sizeof (mib2_udpEntry_t); 78607c478bd9Sstevel@tonic-gate template.entry6Size.value.ui32 = sizeof (mib2_udp6Entry_t); 78617c478bd9Sstevel@tonic-gate 7862f4b3ec61Sdh bcopy(&template, ksp->ks_data, sizeof (template)); 7863f4b3ec61Sdh ksp->ks_update = udp_kstat_update; 7864f4b3ec61Sdh ksp->ks_private = (void *)(uintptr_t)stackid; 78657c478bd9Sstevel@tonic-gate 7866f4b3ec61Sdh kstat_install(ksp); 7867f4b3ec61Sdh return (ksp); 78687c478bd9Sstevel@tonic-gate } 78697c478bd9Sstevel@tonic-gate 78707c478bd9Sstevel@tonic-gate static void 7871f4b3ec61Sdh udp_kstat_fini(netstackid_t stackid, kstat_t *ksp) 78727c478bd9Sstevel@tonic-gate { 7873f4b3ec61Sdh if (ksp != NULL) { 7874f4b3ec61Sdh ASSERT(stackid == (netstackid_t)(uintptr_t)ksp->ks_private); 7875f4b3ec61Sdh kstat_delete_netstack(ksp, stackid); 78767c478bd9Sstevel@tonic-gate } 78777c478bd9Sstevel@tonic-gate } 78787c478bd9Sstevel@tonic-gate 78797c478bd9Sstevel@tonic-gate static int 78807c478bd9Sstevel@tonic-gate udp_kstat_update(kstat_t *kp, int rw) 78817c478bd9Sstevel@tonic-gate { 78827c478bd9Sstevel@tonic-gate udp_named_kstat_t *udpkp; 7883f4b3ec61Sdh netstackid_t stackid = (netstackid_t)(uintptr_t)kp->ks_private; 7884f4b3ec61Sdh netstack_t *ns; 7885f4b3ec61Sdh udp_stack_t *us; 78867c478bd9Sstevel@tonic-gate 78877c478bd9Sstevel@tonic-gate if ((kp == NULL) || (kp->ks_data == NULL)) 78887c478bd9Sstevel@tonic-gate return (EIO); 78897c478bd9Sstevel@tonic-gate 78907c478bd9Sstevel@tonic-gate if (rw == KSTAT_WRITE) 78917c478bd9Sstevel@tonic-gate return (EACCES); 78927c478bd9Sstevel@tonic-gate 7893f4b3ec61Sdh ns = netstack_find_by_stackid(stackid); 7894f4b3ec61Sdh if (ns == NULL) 7895f4b3ec61Sdh return (-1); 7896f4b3ec61Sdh us = ns->netstack_udp; 7897f4b3ec61Sdh if (us == NULL) { 7898f4b3ec61Sdh netstack_rele(ns); 7899f4b3ec61Sdh return (-1); 7900f4b3ec61Sdh } 79017c478bd9Sstevel@tonic-gate udpkp = (udp_named_kstat_t *)kp->ks_data; 79027c478bd9Sstevel@tonic-gate 790327c48ed9Snordmark udpkp->inDatagrams.value.ui64 = us->us_udp_mib.udpHCInDatagrams; 7904f4b3ec61Sdh udpkp->inErrors.value.ui32 = us->us_udp_mib.udpInErrors; 790527c48ed9Snordmark udpkp->outDatagrams.value.ui64 = us->us_udp_mib.udpHCOutDatagrams; 7906f4b3ec61Sdh udpkp->outErrors.value.ui32 = us->us_udp_mib.udpOutErrors; 7907f4b3ec61Sdh netstack_rele(ns); 79087c478bd9Sstevel@tonic-gate return (0); 79097c478bd9Sstevel@tonic-gate } 79107c478bd9Sstevel@tonic-gate 7911ff550d0eSmasputra /* 7912ff550d0eSmasputra * Read-side synchronous stream info entry point, called as a 7913ff550d0eSmasputra * result of handling certain STREAMS ioctl operations. 7914ff550d0eSmasputra */ 7915ff550d0eSmasputra static int 7916ff550d0eSmasputra udp_rinfop(queue_t *q, infod_t *dp) 7917ff550d0eSmasputra { 7918ff550d0eSmasputra mblk_t *mp; 7919ff550d0eSmasputra uint_t cmd = dp->d_cmd; 7920ff550d0eSmasputra int res = 0; 7921ff550d0eSmasputra int error = 0; 7922fc80c0dfSnordmark udp_t *udp = Q_TO_UDP(q); 7923ff550d0eSmasputra struct stdata *stp = STREAM(q); 7924ff550d0eSmasputra 7925ff550d0eSmasputra mutex_enter(&udp->udp_drain_lock); 7926ff550d0eSmasputra /* If shutdown on read has happened, return nothing */ 7927ff550d0eSmasputra mutex_enter(&stp->sd_lock); 7928ff550d0eSmasputra if (stp->sd_flag & STREOF) { 7929ff550d0eSmasputra mutex_exit(&stp->sd_lock); 7930ff550d0eSmasputra goto done; 7931ff550d0eSmasputra } 7932ff550d0eSmasputra mutex_exit(&stp->sd_lock); 7933ff550d0eSmasputra 7934ff550d0eSmasputra if ((mp = udp->udp_rcv_list_head) == NULL) 7935ff550d0eSmasputra goto done; 7936ff550d0eSmasputra 7937ff550d0eSmasputra ASSERT(DB_TYPE(mp) != M_DATA && mp->b_cont != NULL); 7938ff550d0eSmasputra 7939ff550d0eSmasputra if (cmd & INFOD_COUNT) { 7940ff550d0eSmasputra /* 7941ff550d0eSmasputra * Return the number of messages. 7942ff550d0eSmasputra */ 7943ff550d0eSmasputra dp->d_count += udp->udp_rcv_msgcnt; 7944ff550d0eSmasputra res |= INFOD_COUNT; 7945ff550d0eSmasputra } 7946ff550d0eSmasputra if (cmd & INFOD_BYTES) { 7947ff550d0eSmasputra /* 7948ff550d0eSmasputra * Return size of all data messages. 7949ff550d0eSmasputra */ 7950ff550d0eSmasputra dp->d_bytes += udp->udp_rcv_cnt; 7951ff550d0eSmasputra res |= INFOD_BYTES; 7952ff550d0eSmasputra } 7953ff550d0eSmasputra if (cmd & INFOD_FIRSTBYTES) { 7954ff550d0eSmasputra /* 7955ff550d0eSmasputra * Return size of first data message. 7956ff550d0eSmasputra */ 7957ff550d0eSmasputra dp->d_bytes = msgdsize(mp); 7958ff550d0eSmasputra res |= INFOD_FIRSTBYTES; 7959ff550d0eSmasputra dp->d_cmd &= ~INFOD_FIRSTBYTES; 7960ff550d0eSmasputra } 7961ff550d0eSmasputra if (cmd & INFOD_COPYOUT) { 7962ff550d0eSmasputra mblk_t *mp1 = mp->b_cont; 7963ff550d0eSmasputra int n; 7964ff550d0eSmasputra /* 7965ff550d0eSmasputra * Return data contents of first message. 7966ff550d0eSmasputra */ 7967ff550d0eSmasputra ASSERT(DB_TYPE(mp1) == M_DATA); 7968ff550d0eSmasputra while (mp1 != NULL && dp->d_uiop->uio_resid > 0) { 7969ff550d0eSmasputra n = MIN(dp->d_uiop->uio_resid, MBLKL(mp1)); 7970ff550d0eSmasputra if (n != 0 && (error = uiomove((char *)mp1->b_rptr, n, 7971ff550d0eSmasputra UIO_READ, dp->d_uiop)) != 0) { 7972ff550d0eSmasputra goto done; 7973ff550d0eSmasputra } 7974ff550d0eSmasputra mp1 = mp1->b_cont; 7975ff550d0eSmasputra } 7976ff550d0eSmasputra res |= INFOD_COPYOUT; 7977ff550d0eSmasputra dp->d_cmd &= ~INFOD_COPYOUT; 7978ff550d0eSmasputra } 7979ff550d0eSmasputra done: 7980ff550d0eSmasputra mutex_exit(&udp->udp_drain_lock); 7981ff550d0eSmasputra 7982ff550d0eSmasputra dp->d_res |= res; 7983ff550d0eSmasputra 7984ff550d0eSmasputra return (error); 7985ff550d0eSmasputra } 7986ff550d0eSmasputra 7987ff550d0eSmasputra /* 7988ff550d0eSmasputra * Read-side synchronous stream entry point. This is called as a result 7989ff550d0eSmasputra * of recv/read operation done at sockfs, and is guaranteed to execute 7990ff550d0eSmasputra * outside of the interrupt thread context. It returns a single datagram 7991ff550d0eSmasputra * (b_cont chain of T_UNITDATA_IND plus data) to the upper layer. 7992ff550d0eSmasputra */ 7993ff550d0eSmasputra static int 7994ff550d0eSmasputra udp_rrw(queue_t *q, struiod_t *dp) 7995ff550d0eSmasputra { 7996ff550d0eSmasputra mblk_t *mp; 7997fc80c0dfSnordmark udp_t *udp = Q_TO_UDP(q); 7998f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 7999ff550d0eSmasputra 8000ff550d0eSmasputra /* 8001ff550d0eSmasputra * Dequeue datagram from the head of the list and return 8002ff550d0eSmasputra * it to caller; also ensure that RSLEEP sd_wakeq flag is 8003ff550d0eSmasputra * set/cleared depending on whether or not there's data 8004ff550d0eSmasputra * remaining in the list. 8005ff550d0eSmasputra */ 8006ff550d0eSmasputra mutex_enter(&udp->udp_drain_lock); 8007ff550d0eSmasputra if (!udp->udp_direct_sockfs) { 8008ff550d0eSmasputra mutex_exit(&udp->udp_drain_lock); 8009f4b3ec61Sdh UDP_STAT(us, udp_rrw_busy); 8010ff550d0eSmasputra return (EBUSY); 8011ff550d0eSmasputra } 8012ff550d0eSmasputra if ((mp = udp->udp_rcv_list_head) != NULL) { 8013ff550d0eSmasputra uint_t size = msgdsize(mp); 8014ff550d0eSmasputra 8015ff550d0eSmasputra /* Last datagram in the list? */ 8016ff550d0eSmasputra if ((udp->udp_rcv_list_head = mp->b_next) == NULL) 8017ff550d0eSmasputra udp->udp_rcv_list_tail = NULL; 8018ff550d0eSmasputra mp->b_next = NULL; 8019ff550d0eSmasputra 8020ff550d0eSmasputra udp->udp_rcv_cnt -= size; 8021ff550d0eSmasputra udp->udp_rcv_msgcnt--; 8022f4b3ec61Sdh UDP_STAT(us, udp_rrw_msgcnt); 8023ff550d0eSmasputra 8024ff550d0eSmasputra /* No longer flow-controlling? */ 8025ff550d0eSmasputra if (udp->udp_rcv_cnt < udp->udp_rcv_hiwat && 8026ff550d0eSmasputra udp->udp_rcv_msgcnt < udp->udp_rcv_hiwat) 8027ff550d0eSmasputra udp->udp_drain_qfull = B_FALSE; 8028ff550d0eSmasputra } 8029ff550d0eSmasputra if (udp->udp_rcv_list_head == NULL) { 8030ff550d0eSmasputra /* 8031ff550d0eSmasputra * Either we just dequeued the last datagram or 8032ff550d0eSmasputra * we get here from sockfs and have nothing to 8033ff550d0eSmasputra * return; in this case clear RSLEEP. 8034ff550d0eSmasputra */ 8035ff550d0eSmasputra ASSERT(udp->udp_rcv_cnt == 0); 8036ff550d0eSmasputra ASSERT(udp->udp_rcv_msgcnt == 0); 8037ff550d0eSmasputra ASSERT(udp->udp_rcv_list_tail == NULL); 8038ff550d0eSmasputra STR_WAKEUP_CLEAR(STREAM(q)); 8039ff550d0eSmasputra } else { 8040ff550d0eSmasputra /* 8041ff550d0eSmasputra * More data follows; we need udp_rrw() to be 8042ff550d0eSmasputra * called in future to pick up the rest. 8043ff550d0eSmasputra */ 8044ff550d0eSmasputra STR_WAKEUP_SET(STREAM(q)); 8045ff550d0eSmasputra } 8046ff550d0eSmasputra mutex_exit(&udp->udp_drain_lock); 8047ff550d0eSmasputra dp->d_mp = mp; 8048ff550d0eSmasputra return (0); 8049ff550d0eSmasputra } 8050ff550d0eSmasputra 8051ff550d0eSmasputra /* 8052ff550d0eSmasputra * Enqueue a completely-built T_UNITDATA_IND message into the receive 8053ff550d0eSmasputra * list; this is typically executed within the interrupt thread context 8054ff550d0eSmasputra * and so we do things as quickly as possible. 8055ff550d0eSmasputra */ 8056ff550d0eSmasputra static void 8057ff550d0eSmasputra udp_rcv_enqueue(queue_t *q, udp_t *udp, mblk_t *mp, uint_t pkt_len) 8058ff550d0eSmasputra { 8059ff550d0eSmasputra ASSERT(q == RD(q)); 8060ff550d0eSmasputra ASSERT(pkt_len == msgdsize(mp)); 8061ff550d0eSmasputra ASSERT(mp->b_next == NULL && mp->b_cont != NULL); 8062ff550d0eSmasputra ASSERT(DB_TYPE(mp) == M_PROTO && DB_TYPE(mp->b_cont) == M_DATA); 8063ff550d0eSmasputra ASSERT(MBLKL(mp) >= sizeof (struct T_unitdata_ind)); 8064ff550d0eSmasputra 8065ff550d0eSmasputra mutex_enter(&udp->udp_drain_lock); 8066ff550d0eSmasputra /* 8067ff550d0eSmasputra * Wake up and signal the receiving app; it is okay to do this 8068ff550d0eSmasputra * before enqueueing the mp because we are holding the drain lock. 8069ff550d0eSmasputra * One of the advantages of synchronous stream is the ability for 8070ff550d0eSmasputra * us to find out when the application performs a read on the 8071ff550d0eSmasputra * socket by way of udp_rrw() entry point being called. We need 8072ff550d0eSmasputra * to generate SIGPOLL/SIGIO for each received data in the case 8073ff550d0eSmasputra * of asynchronous socket just as in the strrput() case. However, 8074ff550d0eSmasputra * we only wake the application up when necessary, i.e. during the 8075ff550d0eSmasputra * first enqueue. When udp_rrw() is called, we send up a single 8076ff550d0eSmasputra * datagram upstream and call STR_WAKEUP_SET() again when there 8077ff550d0eSmasputra * are still data remaining in our receive queue. 8078ff550d0eSmasputra */ 8079ff550d0eSmasputra if (udp->udp_rcv_list_head == NULL) { 8080ff550d0eSmasputra STR_WAKEUP_SET(STREAM(q)); 8081ff550d0eSmasputra udp->udp_rcv_list_head = mp; 8082ff550d0eSmasputra } else { 8083ff550d0eSmasputra udp->udp_rcv_list_tail->b_next = mp; 8084ff550d0eSmasputra } 8085ff550d0eSmasputra udp->udp_rcv_list_tail = mp; 8086ff550d0eSmasputra udp->udp_rcv_cnt += pkt_len; 8087ff550d0eSmasputra udp->udp_rcv_msgcnt++; 8088ff550d0eSmasputra 8089ff550d0eSmasputra /* Need to flow-control? */ 8090ff550d0eSmasputra if (udp->udp_rcv_cnt >= udp->udp_rcv_hiwat || 8091ff550d0eSmasputra udp->udp_rcv_msgcnt >= udp->udp_rcv_hiwat) 8092ff550d0eSmasputra udp->udp_drain_qfull = B_TRUE; 8093ff550d0eSmasputra 8094ff550d0eSmasputra /* Update poll events and send SIGPOLL/SIGIO if necessary */ 8095ff550d0eSmasputra STR_SENDSIG(STREAM(q)); 8096ff550d0eSmasputra mutex_exit(&udp->udp_drain_lock); 8097ff550d0eSmasputra } 8098ff550d0eSmasputra 8099ff550d0eSmasputra /* 8100ff550d0eSmasputra * Drain the contents of receive list to the module upstream; we do 8101ff550d0eSmasputra * this during close or when we fallback to the slow mode due to 8102ff550d0eSmasputra * sockmod being popped or a module being pushed on top of us. 8103ff550d0eSmasputra */ 8104ff550d0eSmasputra static void 8105ff550d0eSmasputra udp_rcv_drain(queue_t *q, udp_t *udp, boolean_t closing) 8106ff550d0eSmasputra { 8107ff550d0eSmasputra mblk_t *mp; 8108f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 8109ff550d0eSmasputra 8110ff550d0eSmasputra ASSERT(q == RD(q)); 8111ff550d0eSmasputra 8112ff550d0eSmasputra mutex_enter(&udp->udp_drain_lock); 8113ff550d0eSmasputra /* 8114ff550d0eSmasputra * There is no race with a concurrent udp_input() sending 8115ff550d0eSmasputra * up packets using putnext() after we have cleared the 8116ff550d0eSmasputra * udp_direct_sockfs flag but before we have completed 8117ff550d0eSmasputra * sending up the packets in udp_rcv_list, since we are 8118ff550d0eSmasputra * either a writer or we have quiesced the conn. 8119ff550d0eSmasputra */ 8120ff550d0eSmasputra udp->udp_direct_sockfs = B_FALSE; 8121ff550d0eSmasputra mutex_exit(&udp->udp_drain_lock); 8122ff550d0eSmasputra 8123ff550d0eSmasputra if (udp->udp_rcv_list_head != NULL) 8124f4b3ec61Sdh UDP_STAT(us, udp_drain); 8125ff550d0eSmasputra 8126ff550d0eSmasputra /* 8127ff550d0eSmasputra * Send up everything via putnext(); note here that we 8128ff550d0eSmasputra * don't need the udp_drain_lock to protect us since 8129ff550d0eSmasputra * nothing can enter udp_rrw() and that we currently 8130ff550d0eSmasputra * have exclusive access to this udp. 8131ff550d0eSmasputra */ 8132ff550d0eSmasputra while ((mp = udp->udp_rcv_list_head) != NULL) { 8133ff550d0eSmasputra udp->udp_rcv_list_head = mp->b_next; 8134ff550d0eSmasputra mp->b_next = NULL; 8135ff550d0eSmasputra udp->udp_rcv_cnt -= msgdsize(mp); 8136ff550d0eSmasputra udp->udp_rcv_msgcnt--; 8137ff550d0eSmasputra if (closing) { 8138ff550d0eSmasputra freemsg(mp); 8139ff550d0eSmasputra } else { 8140ff550d0eSmasputra putnext(q, mp); 8141ff550d0eSmasputra } 8142ff550d0eSmasputra } 8143ff550d0eSmasputra ASSERT(udp->udp_rcv_cnt == 0); 8144ff550d0eSmasputra ASSERT(udp->udp_rcv_msgcnt == 0); 8145ff550d0eSmasputra ASSERT(udp->udp_rcv_list_head == NULL); 8146ff550d0eSmasputra udp->udp_rcv_list_tail = NULL; 8147ff550d0eSmasputra udp->udp_drain_qfull = B_FALSE; 8148ff550d0eSmasputra } 8149ff550d0eSmasputra 8150ff550d0eSmasputra static size_t 8151ff550d0eSmasputra udp_set_rcv_hiwat(udp_t *udp, size_t size) 8152ff550d0eSmasputra { 8153f4b3ec61Sdh udp_stack_t *us = udp->udp_us; 8154f4b3ec61Sdh 8155ff550d0eSmasputra /* We add a bit of extra buffering */ 8156ff550d0eSmasputra size += size >> 1; 8157f4b3ec61Sdh if (size > us->us_max_buf) 8158f4b3ec61Sdh size = us->us_max_buf; 8159ff550d0eSmasputra 8160ff550d0eSmasputra udp->udp_rcv_hiwat = size; 8161ff550d0eSmasputra return (size); 8162ff550d0eSmasputra } 8163fc80c0dfSnordmark 8164fc80c0dfSnordmark /* 8165fc80c0dfSnordmark * For the lower queue so that UDP can be a dummy mux. 8166fc80c0dfSnordmark * Nobody should be sending 8167fc80c0dfSnordmark * packets up this stream 8168fc80c0dfSnordmark */ 8169fc80c0dfSnordmark static void 8170fc80c0dfSnordmark udp_lrput(queue_t *q, mblk_t *mp) 8171fc80c0dfSnordmark { 8172fc80c0dfSnordmark mblk_t *mp1; 8173fc80c0dfSnordmark 8174fc80c0dfSnordmark switch (mp->b_datap->db_type) { 8175fc80c0dfSnordmark case M_FLUSH: 8176fc80c0dfSnordmark /* Turn around */ 8177fc80c0dfSnordmark if (*mp->b_rptr & FLUSHW) { 8178fc80c0dfSnordmark *mp->b_rptr &= ~FLUSHR; 8179fc80c0dfSnordmark qreply(q, mp); 8180fc80c0dfSnordmark return; 8181fc80c0dfSnordmark } 8182fc80c0dfSnordmark break; 8183fc80c0dfSnordmark } 8184fc80c0dfSnordmark /* Could receive messages that passed through ar_rput */ 8185fc80c0dfSnordmark for (mp1 = mp; mp1; mp1 = mp1->b_cont) 8186fc80c0dfSnordmark mp1->b_prev = mp1->b_next = NULL; 8187fc80c0dfSnordmark freemsg(mp); 8188fc80c0dfSnordmark } 8189fc80c0dfSnordmark 8190fc80c0dfSnordmark /* 8191fc80c0dfSnordmark * For the lower queue so that UDP can be a dummy mux. 8192fc80c0dfSnordmark * Nobody should be sending packets down this stream. 8193fc80c0dfSnordmark */ 8194fc80c0dfSnordmark /* ARGSUSED */ 8195fc80c0dfSnordmark void 8196fc80c0dfSnordmark udp_lwput(queue_t *q, mblk_t *mp) 8197fc80c0dfSnordmark { 8198fc80c0dfSnordmark freemsg(mp); 8199fc80c0dfSnordmark } 8200