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 545916cd2Sjpk * Common Development and Distribution License (the "License"). 645916cd2Sjpk * 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 /* 22f4b3ec61Sdh * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 277c478bd9Sstevel@tonic-gate 287c478bd9Sstevel@tonic-gate #include <sys/types.h> 297c478bd9Sstevel@tonic-gate #include <sys/systm.h> 307c478bd9Sstevel@tonic-gate #include <sys/stream.h> 31*1d19ca10Svi #include <sys/cmn_err.h> 327c478bd9Sstevel@tonic-gate #include <sys/ddi.h> 337c478bd9Sstevel@tonic-gate #include <sys/sunddi.h> 347c478bd9Sstevel@tonic-gate #include <sys/kmem.h> 357c478bd9Sstevel@tonic-gate #include <sys/socket.h> 367c478bd9Sstevel@tonic-gate #include <sys/sysmacros.h> 377c478bd9Sstevel@tonic-gate #include <sys/list.h> 387c478bd9Sstevel@tonic-gate 397c478bd9Sstevel@tonic-gate #include <netinet/in.h> 407c478bd9Sstevel@tonic-gate #include <netinet/ip6.h> 417c478bd9Sstevel@tonic-gate #include <netinet/sctp.h> 427c478bd9Sstevel@tonic-gate 437c478bd9Sstevel@tonic-gate #include <inet/common.h> 447c478bd9Sstevel@tonic-gate #include <inet/ip.h> 457c478bd9Sstevel@tonic-gate #include <inet/ip6.h> 467c478bd9Sstevel@tonic-gate #include <inet/ip_if.h> 477c478bd9Sstevel@tonic-gate #include <inet/ipclassifier.h> 487c478bd9Sstevel@tonic-gate #include <inet/sctp_ip.h> 497c478bd9Sstevel@tonic-gate #include "sctp_impl.h" 507c478bd9Sstevel@tonic-gate #include "sctp_addr.h" 517c478bd9Sstevel@tonic-gate 527c478bd9Sstevel@tonic-gate static void sctp_ipif_inactive(sctp_ipif_t *); 537c478bd9Sstevel@tonic-gate static sctp_ipif_t *sctp_lookup_ipif_addr(in6_addr_t *, boolean_t, 54e35d2278Svi zoneid_t, boolean_t, uint_t, uint_t, boolean_t, 55e35d2278Svi sctp_stack_t *); 567c478bd9Sstevel@tonic-gate static int sctp_get_all_ipifs(sctp_t *, int); 57f551bb10Svi static int sctp_ipif_hash_insert(sctp_t *, sctp_ipif_t *, int, 58e35d2278Svi boolean_t, boolean_t); 597c478bd9Sstevel@tonic-gate static void sctp_ipif_hash_remove(sctp_t *, sctp_ipif_t *); 607c478bd9Sstevel@tonic-gate static int sctp_compare_ipif_list(sctp_ipif_hash_t *, 617c478bd9Sstevel@tonic-gate sctp_ipif_hash_t *); 627c478bd9Sstevel@tonic-gate static int sctp_copy_ipifs(sctp_ipif_hash_t *, sctp_t *, int); 63f551bb10Svi 64e35d2278Svi #define SCTP_ADDR4_HASH(addr) \ 65e35d2278Svi (((addr) ^ ((addr) >> 8) ^ ((addr) >> 16) ^ ((addr) >> 24)) & \ 66e35d2278Svi (SCTP_IPIF_HASH - 1)) 67e35d2278Svi 68e35d2278Svi #define SCTP_ADDR6_HASH(addr) \ 69e35d2278Svi (((addr).s6_addr32[3] ^ \ 70e35d2278Svi (((addr).s6_addr32[3] ^ (addr).s6_addr32[2]) >> 12)) & \ 71e35d2278Svi (SCTP_IPIF_HASH - 1)) 72e35d2278Svi 73e35d2278Svi #define SCTP_IPIF_ADDR_HASH(addr, isv6) \ 74e35d2278Svi ((isv6) ? SCTP_ADDR6_HASH((addr)) : \ 75e35d2278Svi SCTP_ADDR4_HASH((addr)._S6_un._S6_u32[3])) 76e35d2278Svi 777c478bd9Sstevel@tonic-gate #define SCTP_IPIF_USABLE(sctp_ipif_state) \ 787c478bd9Sstevel@tonic-gate ((sctp_ipif_state) == SCTP_IPIFS_UP || \ 79f551bb10Svi (sctp_ipif_state) == SCTP_IPIFS_DOWN) 80f551bb10Svi 81f551bb10Svi #define SCTP_IPIF_DISCARD(sctp_ipif_flags) \ 82f551bb10Svi ((sctp_ipif_flags) & (IPIF_PRIVATE | IPIF_DEPRECATED)) 83f551bb10Svi 841d8c4025Svi #define SCTP_IS_IPIF_LOOPBACK(ipif) \ 851d8c4025Svi ((ipif)->sctp_ipif_ill->sctp_ill_flags & PHYI_LOOPBACK) 861d8c4025Svi 871d8c4025Svi #define SCTP_IS_IPIF_LINKLOCAL(ipif) \ 881d8c4025Svi ((ipif)->sctp_ipif_isv6 && \ 891d8c4025Svi IN6_IS_ADDR_LINKLOCAL(&(ipif)->sctp_ipif_saddr)) 90f551bb10Svi 91f551bb10Svi #define SCTP_UNSUPP_AF(ipif, supp_af) \ 92f551bb10Svi ((!(ipif)->sctp_ipif_isv6 && !((supp_af) & PARM_SUPP_V4)) || \ 93f551bb10Svi ((ipif)->sctp_ipif_isv6 && !((supp_af) & PARM_SUPP_V6))) 947c478bd9Sstevel@tonic-gate 955d0bc3edSsommerfe #define SCTP_IPIF_ZONE_MATCH(sctp, ipif) \ 965d0bc3edSsommerfe IPCL_ZONE_MATCH((sctp)->sctp_connp, (ipif)->sctp_ipif_zoneid) 975d0bc3edSsommerfe 987c478bd9Sstevel@tonic-gate #define SCTP_ILL_HASH_FN(index) ((index) % SCTP_ILL_HASH) 997c478bd9Sstevel@tonic-gate #define SCTP_ILL_TO_PHYINDEX(ill) ((ill)->ill_phyint->phyint_ifindex) 1007c478bd9Sstevel@tonic-gate 1017c478bd9Sstevel@tonic-gate /* 1027c478bd9Sstevel@tonic-gate * SCTP Interface list manipulation functions, locking used. 1037c478bd9Sstevel@tonic-gate */ 1047c478bd9Sstevel@tonic-gate 1057c478bd9Sstevel@tonic-gate /* 1067c478bd9Sstevel@tonic-gate * Delete an SCTP IPIF from the list if the refcount goes to 0 and it is 1077c478bd9Sstevel@tonic-gate * marked as condemned. Also, check if the ILL needs to go away. 1087c478bd9Sstevel@tonic-gate */ 1097c478bd9Sstevel@tonic-gate static void 1107c478bd9Sstevel@tonic-gate sctp_ipif_inactive(sctp_ipif_t *sctp_ipif) 1117c478bd9Sstevel@tonic-gate { 1127c478bd9Sstevel@tonic-gate sctp_ill_t *sctp_ill; 113e35d2278Svi uint_t hindex; 1147c478bd9Sstevel@tonic-gate uint_t ill_index; 115f4b3ec61Sdh sctp_stack_t *sctps = sctp_ipif->sctp_ipif_ill-> 116f4b3ec61Sdh sctp_ill_netstack->netstack_sctp; 1177c478bd9Sstevel@tonic-gate 118f4b3ec61Sdh rw_enter(&sctps->sctps_g_ills_lock, RW_READER); 119f4b3ec61Sdh rw_enter(&sctps->sctps_g_ipifs_lock, RW_WRITER); 1207c478bd9Sstevel@tonic-gate 121e35d2278Svi hindex = SCTP_IPIF_ADDR_HASH(sctp_ipif->sctp_ipif_saddr, 122e35d2278Svi sctp_ipif->sctp_ipif_isv6); 123e35d2278Svi 1247c478bd9Sstevel@tonic-gate sctp_ill = sctp_ipif->sctp_ipif_ill; 1257c478bd9Sstevel@tonic-gate ASSERT(sctp_ill != NULL); 1267c478bd9Sstevel@tonic-gate ill_index = SCTP_ILL_HASH_FN(sctp_ill->sctp_ill_index); 1277c478bd9Sstevel@tonic-gate if (sctp_ipif->sctp_ipif_state != SCTP_IPIFS_CONDEMNED || 1287c478bd9Sstevel@tonic-gate sctp_ipif->sctp_ipif_refcnt != 0) { 129f4b3ec61Sdh rw_exit(&sctps->sctps_g_ipifs_lock); 130f4b3ec61Sdh rw_exit(&sctps->sctps_g_ills_lock); 1317c478bd9Sstevel@tonic-gate return; 1327c478bd9Sstevel@tonic-gate } 133e35d2278Svi list_remove(&sctps->sctps_g_ipifs[hindex].sctp_ipif_list, 134f4b3ec61Sdh sctp_ipif); 135e35d2278Svi sctps->sctps_g_ipifs[hindex].ipif_count--; 136f4b3ec61Sdh sctps->sctps_g_ipifs_count--; 1377c478bd9Sstevel@tonic-gate rw_destroy(&sctp_ipif->sctp_ipif_lock); 1387c478bd9Sstevel@tonic-gate kmem_free(sctp_ipif, sizeof (sctp_ipif_t)); 1397c478bd9Sstevel@tonic-gate 1407c478bd9Sstevel@tonic-gate (void) atomic_add_32_nv(&sctp_ill->sctp_ill_ipifcnt, -1); 141f4b3ec61Sdh if (rw_tryupgrade(&sctps->sctps_g_ills_lock) != 0) { 142f4b3ec61Sdh rw_downgrade(&sctps->sctps_g_ipifs_lock); 1437c478bd9Sstevel@tonic-gate if (sctp_ill->sctp_ill_ipifcnt == 0 && 1447c478bd9Sstevel@tonic-gate sctp_ill->sctp_ill_state == SCTP_ILLS_CONDEMNED) { 145f4b3ec61Sdh list_remove(&sctps->sctps_g_ills[ill_index]. 146f4b3ec61Sdh sctp_ill_list, (void *)sctp_ill); 147f4b3ec61Sdh sctps->sctps_g_ills[ill_index].ill_count--; 148f4b3ec61Sdh sctps->sctps_ills_count--; 1497c478bd9Sstevel@tonic-gate kmem_free(sctp_ill->sctp_ill_name, 1507c478bd9Sstevel@tonic-gate sctp_ill->sctp_ill_name_length); 1517c478bd9Sstevel@tonic-gate kmem_free(sctp_ill, sizeof (sctp_ill_t)); 1527c478bd9Sstevel@tonic-gate } 1537c478bd9Sstevel@tonic-gate } 154f4b3ec61Sdh rw_exit(&sctps->sctps_g_ipifs_lock); 155f4b3ec61Sdh rw_exit(&sctps->sctps_g_ills_lock); 1567c478bd9Sstevel@tonic-gate } 1577c478bd9Sstevel@tonic-gate 1587c478bd9Sstevel@tonic-gate /* 1597c478bd9Sstevel@tonic-gate * Lookup an SCTP IPIF given an IP address. Increments sctp_ipif refcnt. 160e35d2278Svi * We are either looking for a IPIF with the given address before 161e35d2278Svi * inserting it into the global list or looking for an IPIF for an 162e35d2278Svi * address given an SCTP. In the former case we always check the zoneid, 163e35d2278Svi * but for the latter case, check_zid could be B_FALSE if the connp 164e35d2278Svi * for the sctp has conn_all_zones set. When looking for an address we 165e35d2278Svi * give preference to one that is up, so even though we may find one that 166e35d2278Svi * is not up we keep looking if there is one up, we hold the down addr 167e35d2278Svi * in backup_ipif in case we don't find one that is up - i.e. we return 168e35d2278Svi * the backup_ipif in that case. Note that if we are looking for. If we 169e35d2278Svi * are specifically looking for an up address, then usable will be set 170e35d2278Svi * to true. 1717c478bd9Sstevel@tonic-gate */ 1727c478bd9Sstevel@tonic-gate static sctp_ipif_t * 173e35d2278Svi sctp_lookup_ipif_addr(in6_addr_t *addr, boolean_t refhold, zoneid_t zoneid, 174e35d2278Svi boolean_t check_zid, uint_t ifindex, uint_t seqid, boolean_t usable, 175e35d2278Svi sctp_stack_t *sctps) 1767c478bd9Sstevel@tonic-gate { 1777c478bd9Sstevel@tonic-gate int j; 1787c478bd9Sstevel@tonic-gate sctp_ipif_t *sctp_ipif; 179e35d2278Svi sctp_ipif_t *backup_ipif = NULL; 180e35d2278Svi int hindex; 181e35d2278Svi 182e35d2278Svi hindex = SCTP_IPIF_ADDR_HASH(*addr, !IN6_IS_ADDR_V4MAPPED(addr)); 1837c478bd9Sstevel@tonic-gate 184f4b3ec61Sdh rw_enter(&sctps->sctps_g_ipifs_lock, RW_READER); 185e35d2278Svi if (sctps->sctps_g_ipifs[hindex].ipif_count == 0) { 186e35d2278Svi rw_exit(&sctps->sctps_g_ipifs_lock); 187e35d2278Svi return (NULL); 188e35d2278Svi } 189e35d2278Svi sctp_ipif = list_head(&sctps->sctps_g_ipifs[hindex].sctp_ipif_list); 190e35d2278Svi for (j = 0; j < sctps->sctps_g_ipifs[hindex].ipif_count; j++) { 191e35d2278Svi rw_enter(&sctp_ipif->sctp_ipif_lock, RW_READER); 192e35d2278Svi if ((!check_zid || 193e35d2278Svi (sctp_ipif->sctp_ipif_zoneid == ALL_ZONES || 194e35d2278Svi zoneid == sctp_ipif->sctp_ipif_zoneid)) && 195e35d2278Svi (ifindex == 0 || ifindex == 196e35d2278Svi sctp_ipif->sctp_ipif_ill->sctp_ill_index) && 197e35d2278Svi ((seqid != 0 && seqid == sctp_ipif->sctp_ipif_id) || 198e35d2278Svi (IN6_ARE_ADDR_EQUAL(&sctp_ipif->sctp_ipif_saddr, 199e35d2278Svi addr)))) { 200e35d2278Svi if (!usable || sctp_ipif->sctp_ipif_state == 201e35d2278Svi SCTP_IPIFS_UP) { 2027c478bd9Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 2037c478bd9Sstevel@tonic-gate if (refhold) 2047c478bd9Sstevel@tonic-gate SCTP_IPIF_REFHOLD(sctp_ipif); 205f4b3ec61Sdh rw_exit(&sctps->sctps_g_ipifs_lock); 2067c478bd9Sstevel@tonic-gate return (sctp_ipif); 207e35d2278Svi } else if (sctp_ipif->sctp_ipif_state == 208e35d2278Svi SCTP_IPIFS_DOWN && backup_ipif == NULL) { 209e35d2278Svi backup_ipif = sctp_ipif; 2107c478bd9Sstevel@tonic-gate } 2117c478bd9Sstevel@tonic-gate } 212e35d2278Svi rw_exit(&sctp_ipif->sctp_ipif_lock); 213e35d2278Svi sctp_ipif = list_next( 214e35d2278Svi &sctps->sctps_g_ipifs[hindex].sctp_ipif_list, sctp_ipif); 215e35d2278Svi } 216e35d2278Svi if (backup_ipif != NULL) { 217e35d2278Svi if (refhold) 218e35d2278Svi SCTP_IPIF_REFHOLD(backup_ipif); 219e35d2278Svi rw_exit(&sctps->sctps_g_ipifs_lock); 220e35d2278Svi return (backup_ipif); 2217c478bd9Sstevel@tonic-gate } 222f4b3ec61Sdh rw_exit(&sctps->sctps_g_ipifs_lock); 2237c478bd9Sstevel@tonic-gate return (NULL); 2247c478bd9Sstevel@tonic-gate } 2257c478bd9Sstevel@tonic-gate 2267c478bd9Sstevel@tonic-gate /* 2277c478bd9Sstevel@tonic-gate * Populate the list with all the SCTP ipifs for a given ipversion. 2287c478bd9Sstevel@tonic-gate * Increments sctp_ipif refcnt. 2297c478bd9Sstevel@tonic-gate * Called with no locks held. 2307c478bd9Sstevel@tonic-gate */ 2317c478bd9Sstevel@tonic-gate static int 2327c478bd9Sstevel@tonic-gate sctp_get_all_ipifs(sctp_t *sctp, int sleep) 2337c478bd9Sstevel@tonic-gate { 2347c478bd9Sstevel@tonic-gate sctp_ipif_t *sctp_ipif; 2357c478bd9Sstevel@tonic-gate int i; 2367c478bd9Sstevel@tonic-gate int j; 2377c478bd9Sstevel@tonic-gate int error = 0; 238f4b3ec61Sdh sctp_stack_t *sctps = sctp->sctp_sctps; 2397c478bd9Sstevel@tonic-gate 240f4b3ec61Sdh rw_enter(&sctps->sctps_g_ipifs_lock, RW_READER); 2417c478bd9Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 242f4b3ec61Sdh if (sctps->sctps_g_ipifs[i].ipif_count == 0) 2437c478bd9Sstevel@tonic-gate continue; 244f4b3ec61Sdh sctp_ipif = list_head(&sctps->sctps_g_ipifs[i].sctp_ipif_list); 245f4b3ec61Sdh for (j = 0; j < sctps->sctps_g_ipifs[i].ipif_count; j++) { 2467c478bd9Sstevel@tonic-gate rw_enter(&sctp_ipif->sctp_ipif_lock, RW_READER); 247f551bb10Svi if (SCTP_IPIF_DISCARD(sctp_ipif->sctp_ipif_flags) || 2487c478bd9Sstevel@tonic-gate !SCTP_IPIF_USABLE(sctp_ipif->sctp_ipif_state) || 2495d0bc3edSsommerfe !SCTP_IPIF_ZONE_MATCH(sctp, sctp_ipif) || 2507c478bd9Sstevel@tonic-gate (sctp->sctp_ipversion == IPV4_VERSION && 251f551bb10Svi sctp_ipif->sctp_ipif_isv6) || 2527c478bd9Sstevel@tonic-gate (sctp->sctp_connp->conn_ipv6_v6only && 253f551bb10Svi !sctp_ipif->sctp_ipif_isv6)) { 2547c478bd9Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 2557c478bd9Sstevel@tonic-gate sctp_ipif = list_next( 256f4b3ec61Sdh &sctps->sctps_g_ipifs[i].sctp_ipif_list, 257f4b3ec61Sdh sctp_ipif); 2587c478bd9Sstevel@tonic-gate continue; 2597c478bd9Sstevel@tonic-gate } 2607c478bd9Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 2617c478bd9Sstevel@tonic-gate SCTP_IPIF_REFHOLD(sctp_ipif); 262f551bb10Svi error = sctp_ipif_hash_insert(sctp, sctp_ipif, sleep, 263e35d2278Svi B_FALSE, B_FALSE); 264e35d2278Svi if (error != 0 && error != EALREADY) 2657c478bd9Sstevel@tonic-gate goto free_stuff; 266f4b3ec61Sdh sctp_ipif = list_next( 267f4b3ec61Sdh &sctps->sctps_g_ipifs[i].sctp_ipif_list, 2687c478bd9Sstevel@tonic-gate sctp_ipif); 2697c478bd9Sstevel@tonic-gate } 2707c478bd9Sstevel@tonic-gate } 271f4b3ec61Sdh rw_exit(&sctps->sctps_g_ipifs_lock); 2727c478bd9Sstevel@tonic-gate return (0); 2737c478bd9Sstevel@tonic-gate free_stuff: 274f4b3ec61Sdh rw_exit(&sctps->sctps_g_ipifs_lock); 2757c478bd9Sstevel@tonic-gate sctp_free_saddrs(sctp); 2767c478bd9Sstevel@tonic-gate return (ENOMEM); 2777c478bd9Sstevel@tonic-gate } 2787c478bd9Sstevel@tonic-gate 2797c478bd9Sstevel@tonic-gate /* 2807c478bd9Sstevel@tonic-gate * Given a list of address, fills in the list of SCTP ipifs if all the addresses 2817c478bd9Sstevel@tonic-gate * are present in the SCTP interface list, return number of addresses filled 2821d8c4025Svi * or error. If the caller wants the list of addresses, it sends a pre-allocated 2831d8c4025Svi * buffer - list. Currently, this list is only used on a clustered node when 2841d8c4025Svi * the SCTP is in the listen state (from sctp_bind_add()). When called on a 2851d8c4025Svi * clustered node, the input is always a list of addresses (even if the 2861d8c4025Svi * original bind() was to INADDR_ANY). 2877c478bd9Sstevel@tonic-gate * Called with no locks held. 2887c478bd9Sstevel@tonic-gate */ 2897c478bd9Sstevel@tonic-gate int 2901d8c4025Svi sctp_valid_addr_list(sctp_t *sctp, const void *addrs, uint32_t addrcnt, 2911d8c4025Svi uchar_t *list, size_t lsize) 2927c478bd9Sstevel@tonic-gate { 2937c478bd9Sstevel@tonic-gate struct sockaddr_in *sin4; 2947c478bd9Sstevel@tonic-gate struct sockaddr_in6 *sin6; 2957c478bd9Sstevel@tonic-gate struct in_addr *addr4; 2967c478bd9Sstevel@tonic-gate in6_addr_t addr; 2977c478bd9Sstevel@tonic-gate int cnt; 2987c478bd9Sstevel@tonic-gate int err = 0; 2997c478bd9Sstevel@tonic-gate int saddr_cnt = 0; 3007c478bd9Sstevel@tonic-gate sctp_ipif_t *ipif; 3017c478bd9Sstevel@tonic-gate boolean_t bind_to_all = B_FALSE; 3027c478bd9Sstevel@tonic-gate boolean_t check_addrs = B_FALSE; 3037c478bd9Sstevel@tonic-gate boolean_t check_lport = B_FALSE; 3041d8c4025Svi uchar_t *p = list; 3057c478bd9Sstevel@tonic-gate 3067c478bd9Sstevel@tonic-gate /* 3077c478bd9Sstevel@tonic-gate * Need to check for port and address depending on the state. 3087c478bd9Sstevel@tonic-gate * After a socket is bound, we need to make sure that subsequent 3097c478bd9Sstevel@tonic-gate * bindx() has correct port. After an association is established, 3107c478bd9Sstevel@tonic-gate * we need to check for changing the bound address to invalid 3117c478bd9Sstevel@tonic-gate * addresses. 3127c478bd9Sstevel@tonic-gate */ 3137c478bd9Sstevel@tonic-gate if (sctp->sctp_state >= SCTPS_BOUND) { 3147c478bd9Sstevel@tonic-gate check_lport = B_TRUE; 3157c478bd9Sstevel@tonic-gate if (sctp->sctp_state > SCTPS_LISTEN) 3167c478bd9Sstevel@tonic-gate check_addrs = B_TRUE; 3177c478bd9Sstevel@tonic-gate } 3181d8c4025Svi 3197c478bd9Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 3207c478bd9Sstevel@tonic-gate mutex_enter(&sctp->sctp_conn_tfp->tf_lock); 3217c478bd9Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 3227c478bd9Sstevel@tonic-gate mutex_enter(&sctp->sctp_listen_tfp->tf_lock); 3237c478bd9Sstevel@tonic-gate for (cnt = 0; cnt < addrcnt; cnt++) { 3247c478bd9Sstevel@tonic-gate boolean_t lookup_saddr = B_TRUE; 3251d8c4025Svi uint_t ifindex = 0; 3267c478bd9Sstevel@tonic-gate 3277c478bd9Sstevel@tonic-gate switch (sctp->sctp_family) { 3287c478bd9Sstevel@tonic-gate case AF_INET: 3297c478bd9Sstevel@tonic-gate sin4 = (struct sockaddr_in *)addrs + cnt; 3307c478bd9Sstevel@tonic-gate if (sin4->sin_family != AF_INET || (check_lport && 3317c478bd9Sstevel@tonic-gate sin4->sin_port != sctp->sctp_lport)) { 3327c478bd9Sstevel@tonic-gate err = EINVAL; 3337c478bd9Sstevel@tonic-gate goto free_ret; 3347c478bd9Sstevel@tonic-gate } 3357c478bd9Sstevel@tonic-gate addr4 = &sin4->sin_addr; 3367c478bd9Sstevel@tonic-gate if (check_addrs && 3377c478bd9Sstevel@tonic-gate (addr4->s_addr == INADDR_ANY || 3387c478bd9Sstevel@tonic-gate addr4->s_addr == INADDR_BROADCAST || 3397c478bd9Sstevel@tonic-gate IN_MULTICAST(addr4->s_addr))) { 3407c478bd9Sstevel@tonic-gate err = EINVAL; 3417c478bd9Sstevel@tonic-gate goto free_ret; 3427c478bd9Sstevel@tonic-gate } 3437c478bd9Sstevel@tonic-gate IN6_INADDR_TO_V4MAPPED(addr4, &addr); 3447c478bd9Sstevel@tonic-gate if (!check_addrs && addr4->s_addr == INADDR_ANY) { 3457c478bd9Sstevel@tonic-gate lookup_saddr = B_FALSE; 3467c478bd9Sstevel@tonic-gate bind_to_all = B_TRUE; 3477c478bd9Sstevel@tonic-gate } 3487c478bd9Sstevel@tonic-gate 3497c478bd9Sstevel@tonic-gate break; 3507c478bd9Sstevel@tonic-gate case AF_INET6: 3517c478bd9Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)addrs + cnt; 3527c478bd9Sstevel@tonic-gate if (sin6->sin6_family != AF_INET6 || (check_lport && 3537c478bd9Sstevel@tonic-gate sin6->sin6_port != sctp->sctp_lport)) { 3547c478bd9Sstevel@tonic-gate err = EINVAL; 3557c478bd9Sstevel@tonic-gate goto free_ret; 3567c478bd9Sstevel@tonic-gate } 3577c478bd9Sstevel@tonic-gate addr = sin6->sin6_addr; 3581d8c4025Svi /* Contains the interface index */ 3591d8c4025Svi ifindex = sin6->sin6_scope_id; 3607c478bd9Sstevel@tonic-gate if (sctp->sctp_connp->conn_ipv6_v6only && 3617c478bd9Sstevel@tonic-gate IN6_IS_ADDR_V4MAPPED(&addr)) { 3627c478bd9Sstevel@tonic-gate err = EAFNOSUPPORT; 3637c478bd9Sstevel@tonic-gate goto free_ret; 3647c478bd9Sstevel@tonic-gate } 3657c478bd9Sstevel@tonic-gate if (check_addrs && 3667c478bd9Sstevel@tonic-gate (IN6_IS_ADDR_LINKLOCAL(&addr) || 3677c478bd9Sstevel@tonic-gate IN6_IS_ADDR_MULTICAST(&addr) || 3687c478bd9Sstevel@tonic-gate IN6_IS_ADDR_UNSPECIFIED(&addr))) { 3697c478bd9Sstevel@tonic-gate err = EINVAL; 3707c478bd9Sstevel@tonic-gate goto free_ret; 3717c478bd9Sstevel@tonic-gate } 3727c478bd9Sstevel@tonic-gate if (!check_addrs && IN6_IS_ADDR_UNSPECIFIED(&addr)) { 3737c478bd9Sstevel@tonic-gate lookup_saddr = B_FALSE; 3747c478bd9Sstevel@tonic-gate bind_to_all = B_TRUE; 3757c478bd9Sstevel@tonic-gate } 3767c478bd9Sstevel@tonic-gate 3777c478bd9Sstevel@tonic-gate break; 3787c478bd9Sstevel@tonic-gate default: 3797c478bd9Sstevel@tonic-gate err = EAFNOSUPPORT; 3807c478bd9Sstevel@tonic-gate goto free_ret; 3817c478bd9Sstevel@tonic-gate } 3827c478bd9Sstevel@tonic-gate if (lookup_saddr) { 383e35d2278Svi ipif = sctp_lookup_ipif_addr(&addr, B_TRUE, 384e35d2278Svi sctp->sctp_zoneid, !sctp->sctp_connp->conn_allzones, 385e35d2278Svi ifindex, 0, B_TRUE, sctp->sctp_sctps); 3867c478bd9Sstevel@tonic-gate if (ipif == NULL) { 3877c478bd9Sstevel@tonic-gate /* Address not in the list */ 3887c478bd9Sstevel@tonic-gate err = EINVAL; 3897c478bd9Sstevel@tonic-gate goto free_ret; 3901d8c4025Svi } else if (check_addrs && SCTP_IS_IPIF_LOOPBACK(ipif) && 3911d8c4025Svi cl_sctp_check_addrs == NULL) { 3927c478bd9Sstevel@tonic-gate SCTP_IPIF_REFRELE(ipif); 3937c478bd9Sstevel@tonic-gate err = EINVAL; 3947c478bd9Sstevel@tonic-gate goto free_ret; 3957c478bd9Sstevel@tonic-gate } 3967c478bd9Sstevel@tonic-gate } 3977c478bd9Sstevel@tonic-gate if (!bind_to_all) { 398f551bb10Svi /* 399f551bb10Svi * If an address is added after association setup, 400f551bb10Svi * we need to wait for the peer to send us an ASCONF 401f551bb10Svi * ACK before we can start using it. 402f551bb10Svi * saddr_ipif_dontsrc will be reset (to 0) when we 403f551bb10Svi * get the ASCONF ACK for this address. 404f551bb10Svi */ 405f551bb10Svi err = sctp_ipif_hash_insert(sctp, ipif, KM_SLEEP, 406e35d2278Svi check_addrs ? B_TRUE : B_FALSE, B_FALSE); 4077c478bd9Sstevel@tonic-gate if (err != 0) { 4087c478bd9Sstevel@tonic-gate SCTP_IPIF_REFRELE(ipif); 4097c478bd9Sstevel@tonic-gate if (check_addrs && err == EALREADY) 4107c478bd9Sstevel@tonic-gate err = EADDRINUSE; 4117c478bd9Sstevel@tonic-gate goto free_ret; 4127c478bd9Sstevel@tonic-gate } 4137c478bd9Sstevel@tonic-gate saddr_cnt++; 4141d8c4025Svi if (lsize >= sizeof (addr)) { 4151d8c4025Svi bcopy(&addr, p, sizeof (addr)); 4161d8c4025Svi p += sizeof (addr); 4171d8c4025Svi lsize -= sizeof (addr); 4181d8c4025Svi } 4197c478bd9Sstevel@tonic-gate } 4207c478bd9Sstevel@tonic-gate } 4217c478bd9Sstevel@tonic-gate if (bind_to_all) { 4227c478bd9Sstevel@tonic-gate /* 4237c478bd9Sstevel@tonic-gate * Free whatever we might have added before encountering 4247c478bd9Sstevel@tonic-gate * inaddr_any. 4257c478bd9Sstevel@tonic-gate */ 4267c478bd9Sstevel@tonic-gate if (sctp->sctp_nsaddrs > 0) { 4277c478bd9Sstevel@tonic-gate sctp_free_saddrs(sctp); 4287c478bd9Sstevel@tonic-gate ASSERT(sctp->sctp_nsaddrs == 0); 4297c478bd9Sstevel@tonic-gate } 4307c478bd9Sstevel@tonic-gate err = sctp_get_all_ipifs(sctp, KM_SLEEP); 4317c478bd9Sstevel@tonic-gate if (err != 0) 4327c478bd9Sstevel@tonic-gate return (err); 4337c478bd9Sstevel@tonic-gate sctp->sctp_bound_to_all = 1; 4347c478bd9Sstevel@tonic-gate } 4357c478bd9Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 4367c478bd9Sstevel@tonic-gate mutex_exit(&sctp->sctp_listen_tfp->tf_lock); 4377c478bd9Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 4387c478bd9Sstevel@tonic-gate mutex_exit(&sctp->sctp_conn_tfp->tf_lock); 4397c478bd9Sstevel@tonic-gate return (0); 4407c478bd9Sstevel@tonic-gate free_ret: 4417c478bd9Sstevel@tonic-gate if (saddr_cnt != 0) 4427c478bd9Sstevel@tonic-gate sctp_del_saddr_list(sctp, addrs, saddr_cnt, B_TRUE); 4437c478bd9Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 4447c478bd9Sstevel@tonic-gate mutex_exit(&sctp->sctp_listen_tfp->tf_lock); 4457c478bd9Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 4467c478bd9Sstevel@tonic-gate mutex_exit(&sctp->sctp_conn_tfp->tf_lock); 4477c478bd9Sstevel@tonic-gate return (err); 4487c478bd9Sstevel@tonic-gate } 4497c478bd9Sstevel@tonic-gate 4507c478bd9Sstevel@tonic-gate static int 451f551bb10Svi sctp_ipif_hash_insert(sctp_t *sctp, sctp_ipif_t *ipif, int sleep, 452e35d2278Svi boolean_t dontsrc, boolean_t allow_dup) 4537c478bd9Sstevel@tonic-gate { 4547c478bd9Sstevel@tonic-gate int cnt; 4557c478bd9Sstevel@tonic-gate sctp_saddr_ipif_t *ipif_obj; 456e35d2278Svi int hindex; 457e35d2278Svi 458e35d2278Svi hindex = SCTP_IPIF_ADDR_HASH(ipif->sctp_ipif_saddr, 459e35d2278Svi ipif->sctp_ipif_isv6); 460e35d2278Svi ipif_obj = list_head(&sctp->sctp_saddrs[hindex].sctp_ipif_list); 461e35d2278Svi for (cnt = 0; cnt < sctp->sctp_saddrs[hindex].ipif_count; cnt++) { 462e35d2278Svi if (IN6_ARE_ADDR_EQUAL(&ipif_obj->saddr_ipifp->sctp_ipif_saddr, 463e35d2278Svi &ipif->sctp_ipif_saddr)) { 464e35d2278Svi if (ipif->sctp_ipif_id != 465e35d2278Svi ipif_obj->saddr_ipifp->sctp_ipif_id && 466e35d2278Svi ipif_obj->saddr_ipifp->sctp_ipif_state == 467e35d2278Svi SCTP_IPIFS_DOWN && ipif->sctp_ipif_state == 468e35d2278Svi SCTP_IPIFS_UP) { 469e35d2278Svi SCTP_IPIF_REFRELE(ipif_obj->saddr_ipifp); 470e35d2278Svi ipif_obj->saddr_ipifp = ipif; 471e35d2278Svi ipif_obj->saddr_ipif_dontsrc = dontsrc ? 1 : 0; 472e35d2278Svi return (0); 473e35d2278Svi } else if (!allow_dup || ipif->sctp_ipif_id == 474e35d2278Svi ipif_obj->saddr_ipifp->sctp_ipif_id) { 475e35d2278Svi return (EALREADY); 476e35d2278Svi } 477e35d2278Svi } 478e35d2278Svi ipif_obj = list_next(&sctp->sctp_saddrs[hindex].sctp_ipif_list, 4797c478bd9Sstevel@tonic-gate ipif_obj); 4807c478bd9Sstevel@tonic-gate } 4817c478bd9Sstevel@tonic-gate ipif_obj = kmem_zalloc(sizeof (sctp_saddr_ipif_t), sleep); 4827c478bd9Sstevel@tonic-gate if (ipif_obj == NULL) { 4837c478bd9Sstevel@tonic-gate /* Need to do something */ 4847c478bd9Sstevel@tonic-gate return (ENOMEM); 4857c478bd9Sstevel@tonic-gate } 4867c478bd9Sstevel@tonic-gate ipif_obj->saddr_ipifp = ipif; 487f551bb10Svi ipif_obj->saddr_ipif_dontsrc = dontsrc ? 1 : 0; 488e35d2278Svi list_insert_tail(&sctp->sctp_saddrs[hindex].sctp_ipif_list, ipif_obj); 489e35d2278Svi sctp->sctp_saddrs[hindex].ipif_count++; 4907c478bd9Sstevel@tonic-gate sctp->sctp_nsaddrs++; 4917c478bd9Sstevel@tonic-gate return (0); 4927c478bd9Sstevel@tonic-gate } 4937c478bd9Sstevel@tonic-gate 4947c478bd9Sstevel@tonic-gate static void 4957c478bd9Sstevel@tonic-gate sctp_ipif_hash_remove(sctp_t *sctp, sctp_ipif_t *ipif) 4967c478bd9Sstevel@tonic-gate { 4977c478bd9Sstevel@tonic-gate int cnt; 4987c478bd9Sstevel@tonic-gate sctp_saddr_ipif_t *ipif_obj; 499e35d2278Svi int hindex; 500e35d2278Svi 501e35d2278Svi hindex = SCTP_IPIF_ADDR_HASH(ipif->sctp_ipif_saddr, 502e35d2278Svi ipif->sctp_ipif_isv6); 503e35d2278Svi ipif_obj = list_head(&sctp->sctp_saddrs[hindex].sctp_ipif_list); 504e35d2278Svi for (cnt = 0; cnt < sctp->sctp_saddrs[hindex].ipif_count; cnt++) { 505e35d2278Svi if (IN6_ARE_ADDR_EQUAL(&ipif_obj->saddr_ipifp->sctp_ipif_saddr, 506e35d2278Svi &ipif->sctp_ipif_saddr)) { 507e35d2278Svi list_remove(&sctp->sctp_saddrs[hindex].sctp_ipif_list, 5087c478bd9Sstevel@tonic-gate ipif_obj); 509e35d2278Svi sctp->sctp_saddrs[hindex].ipif_count--; 5107c478bd9Sstevel@tonic-gate sctp->sctp_nsaddrs--; 5117c478bd9Sstevel@tonic-gate SCTP_IPIF_REFRELE(ipif_obj->saddr_ipifp); 5127c478bd9Sstevel@tonic-gate kmem_free(ipif_obj, sizeof (sctp_saddr_ipif_t)); 5137c478bd9Sstevel@tonic-gate break; 5147c478bd9Sstevel@tonic-gate } 515e35d2278Svi ipif_obj = list_next(&sctp->sctp_saddrs[hindex].sctp_ipif_list, 5167c478bd9Sstevel@tonic-gate ipif_obj); 5177c478bd9Sstevel@tonic-gate } 5187c478bd9Sstevel@tonic-gate } 5197c478bd9Sstevel@tonic-gate 5207c478bd9Sstevel@tonic-gate static int 5217c478bd9Sstevel@tonic-gate sctp_compare_ipif_list(sctp_ipif_hash_t *list1, sctp_ipif_hash_t *list2) 5227c478bd9Sstevel@tonic-gate { 5237c478bd9Sstevel@tonic-gate int i; 5247c478bd9Sstevel@tonic-gate int j; 5257c478bd9Sstevel@tonic-gate sctp_saddr_ipif_t *obj1; 5267c478bd9Sstevel@tonic-gate sctp_saddr_ipif_t *obj2; 5277c478bd9Sstevel@tonic-gate int overlap = 0; 5287c478bd9Sstevel@tonic-gate 5297c478bd9Sstevel@tonic-gate obj1 = list_head(&list1->sctp_ipif_list); 5307c478bd9Sstevel@tonic-gate for (i = 0; i < list1->ipif_count; i++) { 5317c478bd9Sstevel@tonic-gate obj2 = list_head(&list2->sctp_ipif_list); 5327c478bd9Sstevel@tonic-gate for (j = 0; j < list2->ipif_count; j++) { 533e35d2278Svi if (IN6_ARE_ADDR_EQUAL( 534e35d2278Svi &obj1->saddr_ipifp->sctp_ipif_saddr, 535e35d2278Svi &obj2->saddr_ipifp->sctp_ipif_saddr)) { 5367c478bd9Sstevel@tonic-gate overlap++; 5377c478bd9Sstevel@tonic-gate break; 5387c478bd9Sstevel@tonic-gate } 5397c478bd9Sstevel@tonic-gate obj2 = list_next(&list2->sctp_ipif_list, 5407c478bd9Sstevel@tonic-gate obj2); 5417c478bd9Sstevel@tonic-gate } 5427c478bd9Sstevel@tonic-gate obj1 = list_next(&list1->sctp_ipif_list, obj1); 5437c478bd9Sstevel@tonic-gate } 5447c478bd9Sstevel@tonic-gate return (overlap); 5457c478bd9Sstevel@tonic-gate } 5467c478bd9Sstevel@tonic-gate 5477c478bd9Sstevel@tonic-gate int 5487c478bd9Sstevel@tonic-gate sctp_compare_saddrs(sctp_t *sctp1, sctp_t *sctp2) 5497c478bd9Sstevel@tonic-gate { 5507c478bd9Sstevel@tonic-gate int i; 5517c478bd9Sstevel@tonic-gate int overlap = 0; 5527c478bd9Sstevel@tonic-gate 5537c478bd9Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 5547c478bd9Sstevel@tonic-gate overlap += sctp_compare_ipif_list(&sctp1->sctp_saddrs[i], 5557c478bd9Sstevel@tonic-gate &sctp2->sctp_saddrs[i]); 5567c478bd9Sstevel@tonic-gate } 5577c478bd9Sstevel@tonic-gate 5587c478bd9Sstevel@tonic-gate if (sctp1->sctp_nsaddrs == sctp2->sctp_nsaddrs && 5597c478bd9Sstevel@tonic-gate overlap == sctp1->sctp_nsaddrs) { 5607c478bd9Sstevel@tonic-gate return (SCTP_ADDR_EQUAL); 5617c478bd9Sstevel@tonic-gate } 5627c478bd9Sstevel@tonic-gate 5637c478bd9Sstevel@tonic-gate if (overlap == sctp1->sctp_nsaddrs) 5647c478bd9Sstevel@tonic-gate return (SCTP_ADDR_SUBSET); 5657c478bd9Sstevel@tonic-gate 5667c478bd9Sstevel@tonic-gate if (overlap > 0) 5677c478bd9Sstevel@tonic-gate return (SCTP_ADDR_OVERLAP); 5687c478bd9Sstevel@tonic-gate 5697c478bd9Sstevel@tonic-gate return (SCTP_ADDR_DISJOINT); 5707c478bd9Sstevel@tonic-gate } 5717c478bd9Sstevel@tonic-gate 5727c478bd9Sstevel@tonic-gate static int 5737c478bd9Sstevel@tonic-gate sctp_copy_ipifs(sctp_ipif_hash_t *list1, sctp_t *sctp2, int sleep) 5747c478bd9Sstevel@tonic-gate { 5757c478bd9Sstevel@tonic-gate int i; 5767c478bd9Sstevel@tonic-gate sctp_saddr_ipif_t *obj; 5777c478bd9Sstevel@tonic-gate int error = 0; 5787c478bd9Sstevel@tonic-gate 5797c478bd9Sstevel@tonic-gate obj = list_head(&list1->sctp_ipif_list); 5807c478bd9Sstevel@tonic-gate for (i = 0; i < list1->ipif_count; i++) { 5817c478bd9Sstevel@tonic-gate SCTP_IPIF_REFHOLD(obj->saddr_ipifp); 582f551bb10Svi error = sctp_ipif_hash_insert(sctp2, obj->saddr_ipifp, sleep, 583e35d2278Svi B_FALSE, B_FALSE); 584e35d2278Svi ASSERT(error != EALREADY); 5857c478bd9Sstevel@tonic-gate if (error != 0) 5867c478bd9Sstevel@tonic-gate return (error); 5877c478bd9Sstevel@tonic-gate obj = list_next(&list1->sctp_ipif_list, obj); 5887c478bd9Sstevel@tonic-gate } 5897c478bd9Sstevel@tonic-gate return (error); 5907c478bd9Sstevel@tonic-gate } 5917c478bd9Sstevel@tonic-gate 5927c478bd9Sstevel@tonic-gate int 5937c478bd9Sstevel@tonic-gate sctp_dup_saddrs(sctp_t *sctp1, sctp_t *sctp2, int sleep) 5947c478bd9Sstevel@tonic-gate { 5957c478bd9Sstevel@tonic-gate int error = 0; 5967c478bd9Sstevel@tonic-gate int i; 5977c478bd9Sstevel@tonic-gate 598f551bb10Svi if (sctp1 == NULL || sctp1->sctp_bound_to_all == 1) 5997c478bd9Sstevel@tonic-gate return (sctp_get_all_ipifs(sctp2, sleep)); 6007c478bd9Sstevel@tonic-gate 6017c478bd9Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 6027c478bd9Sstevel@tonic-gate if (sctp1->sctp_saddrs[i].ipif_count == 0) 6037c478bd9Sstevel@tonic-gate continue; 6047c478bd9Sstevel@tonic-gate error = sctp_copy_ipifs(&sctp1->sctp_saddrs[i], sctp2, sleep); 6057c478bd9Sstevel@tonic-gate if (error != 0) { 6067c478bd9Sstevel@tonic-gate sctp_free_saddrs(sctp2); 6077c478bd9Sstevel@tonic-gate return (error); 6087c478bd9Sstevel@tonic-gate } 6097c478bd9Sstevel@tonic-gate } 6107c478bd9Sstevel@tonic-gate return (0); 6117c478bd9Sstevel@tonic-gate } 6127c478bd9Sstevel@tonic-gate 6137c478bd9Sstevel@tonic-gate void 6147c478bd9Sstevel@tonic-gate sctp_free_saddrs(sctp_t *sctp) 6157c478bd9Sstevel@tonic-gate { 6167c478bd9Sstevel@tonic-gate int i; 6177c478bd9Sstevel@tonic-gate int l; 6187c478bd9Sstevel@tonic-gate sctp_saddr_ipif_t *obj; 6197c478bd9Sstevel@tonic-gate 6207c478bd9Sstevel@tonic-gate if (sctp->sctp_nsaddrs == 0) 6217c478bd9Sstevel@tonic-gate return; 6227c478bd9Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 6237c478bd9Sstevel@tonic-gate if (sctp->sctp_saddrs[i].ipif_count == 0) 6247c478bd9Sstevel@tonic-gate continue; 6257c478bd9Sstevel@tonic-gate obj = list_tail(&sctp->sctp_saddrs[i].sctp_ipif_list); 6267c478bd9Sstevel@tonic-gate for (l = 0; l < sctp->sctp_saddrs[i].ipif_count; l++) { 6277c478bd9Sstevel@tonic-gate list_remove(&sctp->sctp_saddrs[i].sctp_ipif_list, obj); 6287c478bd9Sstevel@tonic-gate SCTP_IPIF_REFRELE(obj->saddr_ipifp); 6297c478bd9Sstevel@tonic-gate sctp->sctp_nsaddrs--; 6307c478bd9Sstevel@tonic-gate kmem_free(obj, sizeof (sctp_saddr_ipif_t)); 6317c478bd9Sstevel@tonic-gate obj = list_tail(&sctp->sctp_saddrs[i].sctp_ipif_list); 6327c478bd9Sstevel@tonic-gate } 6337c478bd9Sstevel@tonic-gate sctp->sctp_saddrs[i].ipif_count = 0; 6347c478bd9Sstevel@tonic-gate } 635f551bb10Svi if (sctp->sctp_bound_to_all == 1) 636f551bb10Svi sctp->sctp_bound_to_all = 0; 6377c478bd9Sstevel@tonic-gate ASSERT(sctp->sctp_nsaddrs == 0); 6387c478bd9Sstevel@tonic-gate } 6397c478bd9Sstevel@tonic-gate 6407c478bd9Sstevel@tonic-gate /* 6417c478bd9Sstevel@tonic-gate * Add/Delete the given ILL from the SCTP ILL list. Called with no locks 6427c478bd9Sstevel@tonic-gate * held. 6437c478bd9Sstevel@tonic-gate */ 6447c478bd9Sstevel@tonic-gate void 6457c478bd9Sstevel@tonic-gate sctp_update_ill(ill_t *ill, int op) 6467c478bd9Sstevel@tonic-gate { 6477c478bd9Sstevel@tonic-gate int i; 6487c478bd9Sstevel@tonic-gate sctp_ill_t *sctp_ill = NULL; 6497c478bd9Sstevel@tonic-gate uint_t index; 650f4b3ec61Sdh netstack_t *ns = ill->ill_ipst->ips_netstack; 651f4b3ec61Sdh sctp_stack_t *sctps = ns->netstack_sctp; 6527c478bd9Sstevel@tonic-gate 653f4b3ec61Sdh rw_enter(&sctps->sctps_g_ills_lock, RW_WRITER); 6547c478bd9Sstevel@tonic-gate 6557c478bd9Sstevel@tonic-gate index = SCTP_ILL_HASH_FN(SCTP_ILL_TO_PHYINDEX(ill)); 656f4b3ec61Sdh sctp_ill = list_head(&sctps->sctps_g_ills[index].sctp_ill_list); 657f4b3ec61Sdh for (i = 0; i < sctps->sctps_g_ills[index].ill_count; i++) { 658*1d19ca10Svi if ((sctp_ill->sctp_ill_index == SCTP_ILL_TO_PHYINDEX(ill)) && 659*1d19ca10Svi (sctp_ill->sctp_ill_isv6 == ill->ill_isv6)) { 6607c478bd9Sstevel@tonic-gate break; 661*1d19ca10Svi } 662f4b3ec61Sdh sctp_ill = list_next(&sctps->sctps_g_ills[index].sctp_ill_list, 6637c478bd9Sstevel@tonic-gate sctp_ill); 6647c478bd9Sstevel@tonic-gate } 6657c478bd9Sstevel@tonic-gate 6667c478bd9Sstevel@tonic-gate switch (op) { 6677c478bd9Sstevel@tonic-gate case SCTP_ILL_INSERT: 6687c478bd9Sstevel@tonic-gate if (sctp_ill != NULL) { 6697c478bd9Sstevel@tonic-gate /* Unmark it if it is condemned */ 6707c478bd9Sstevel@tonic-gate if (sctp_ill->sctp_ill_state == SCTP_ILLS_CONDEMNED) 6717c478bd9Sstevel@tonic-gate sctp_ill->sctp_ill_state = 0; 672f4b3ec61Sdh rw_exit(&sctps->sctps_g_ills_lock); 6737c478bd9Sstevel@tonic-gate return; 6747c478bd9Sstevel@tonic-gate } 6757c478bd9Sstevel@tonic-gate sctp_ill = kmem_zalloc(sizeof (sctp_ill_t), KM_NOSLEEP); 6767c478bd9Sstevel@tonic-gate /* Need to re-try? */ 6777c478bd9Sstevel@tonic-gate if (sctp_ill == NULL) { 678*1d19ca10Svi cmn_err(CE_WARN, "sctp_update_ill: error adding " 679*1d19ca10Svi "ILL %p to SCTP's ILL list", (void *)ill); 680f4b3ec61Sdh rw_exit(&sctps->sctps_g_ills_lock); 6817c478bd9Sstevel@tonic-gate return; 6827c478bd9Sstevel@tonic-gate } 683e35d2278Svi sctp_ill->sctp_ill_name = kmem_zalloc(ill->ill_name_length, 684e35d2278Svi KM_NOSLEEP); 6857c478bd9Sstevel@tonic-gate if (sctp_ill->sctp_ill_name == NULL) { 686*1d19ca10Svi cmn_err(CE_WARN, "sctp_update_ill: error adding " 687*1d19ca10Svi "ILL %p to SCTP's ILL list", (void *)ill); 6887c478bd9Sstevel@tonic-gate kmem_free(sctp_ill, sizeof (sctp_ill_t)); 689f4b3ec61Sdh rw_exit(&sctps->sctps_g_ills_lock); 6907c478bd9Sstevel@tonic-gate return; 6917c478bd9Sstevel@tonic-gate } 6927c478bd9Sstevel@tonic-gate bcopy(ill->ill_name, sctp_ill->sctp_ill_name, 6937c478bd9Sstevel@tonic-gate ill->ill_name_length); 6947c478bd9Sstevel@tonic-gate sctp_ill->sctp_ill_name_length = ill->ill_name_length; 6957c478bd9Sstevel@tonic-gate sctp_ill->sctp_ill_index = SCTP_ILL_TO_PHYINDEX(ill); 6967c478bd9Sstevel@tonic-gate sctp_ill->sctp_ill_flags = ill->ill_phyint->phyint_flags; 697f4b3ec61Sdh sctp_ill->sctp_ill_netstack = ns; /* No netstack_hold */ 698*1d19ca10Svi sctp_ill->sctp_ill_isv6 = ill->ill_isv6; 699f4b3ec61Sdh list_insert_tail(&sctps->sctps_g_ills[index].sctp_ill_list, 7007c478bd9Sstevel@tonic-gate (void *)sctp_ill); 701f4b3ec61Sdh sctps->sctps_g_ills[index].ill_count++; 702f4b3ec61Sdh sctps->sctps_ills_count++; 7037c478bd9Sstevel@tonic-gate 7047c478bd9Sstevel@tonic-gate break; 7057c478bd9Sstevel@tonic-gate 7067c478bd9Sstevel@tonic-gate case SCTP_ILL_REMOVE: 7077c478bd9Sstevel@tonic-gate 7087c478bd9Sstevel@tonic-gate if (sctp_ill == NULL) { 709f4b3ec61Sdh rw_exit(&sctps->sctps_g_ills_lock); 7107c478bd9Sstevel@tonic-gate return; 7117c478bd9Sstevel@tonic-gate } 7127c478bd9Sstevel@tonic-gate if (sctp_ill->sctp_ill_ipifcnt == 0) { 713f4b3ec61Sdh list_remove(&sctps->sctps_g_ills[index].sctp_ill_list, 7147c478bd9Sstevel@tonic-gate (void *)sctp_ill); 715f4b3ec61Sdh sctps->sctps_g_ills[index].ill_count--; 716f4b3ec61Sdh sctps->sctps_ills_count--; 7177c478bd9Sstevel@tonic-gate kmem_free(sctp_ill->sctp_ill_name, 7187c478bd9Sstevel@tonic-gate ill->ill_name_length); 7197c478bd9Sstevel@tonic-gate kmem_free(sctp_ill, sizeof (sctp_ill_t)); 7207c478bd9Sstevel@tonic-gate } else { 7217c478bd9Sstevel@tonic-gate sctp_ill->sctp_ill_state = SCTP_ILLS_CONDEMNED; 7227c478bd9Sstevel@tonic-gate } 7237c478bd9Sstevel@tonic-gate 7247c478bd9Sstevel@tonic-gate break; 7257c478bd9Sstevel@tonic-gate } 726f4b3ec61Sdh rw_exit(&sctps->sctps_g_ills_lock); 7277c478bd9Sstevel@tonic-gate } 7287c478bd9Sstevel@tonic-gate 729*1d19ca10Svi /* 730*1d19ca10Svi * The ILL's index is being changed, just remove it from the old list, 731*1d19ca10Svi * change the SCTP ILL's index and re-insert using the new index. 732*1d19ca10Svi */ 733*1d19ca10Svi void 734*1d19ca10Svi sctp_ill_reindex(ill_t *ill, uint_t orig_ill_index) 735*1d19ca10Svi { 736*1d19ca10Svi sctp_ill_t *sctp_ill = NULL; 737*1d19ca10Svi sctp_ill_t *nxt_sill; 738*1d19ca10Svi uint_t indx; 739*1d19ca10Svi uint_t nindx; 740*1d19ca10Svi boolean_t once = B_FALSE; 741*1d19ca10Svi netstack_t *ns = ill->ill_ipst->ips_netstack; 742*1d19ca10Svi sctp_stack_t *sctps = ns->netstack_sctp; 743*1d19ca10Svi 744*1d19ca10Svi rw_enter(&sctps->sctps_g_ills_lock, RW_WRITER); 745*1d19ca10Svi 746*1d19ca10Svi indx = SCTP_ILL_HASH_FN(orig_ill_index); 747*1d19ca10Svi nindx = SCTP_ILL_HASH_FN(SCTP_ILL_TO_PHYINDEX(ill)); 748*1d19ca10Svi sctp_ill = list_head(&sctps->sctps_g_ills[indx].sctp_ill_list); 749*1d19ca10Svi while (sctp_ill != NULL) { 750*1d19ca10Svi nxt_sill = list_next(&sctps->sctps_g_ills[indx].sctp_ill_list, 751*1d19ca10Svi sctp_ill); 752*1d19ca10Svi if (sctp_ill->sctp_ill_index == orig_ill_index) { 753*1d19ca10Svi sctp_ill->sctp_ill_index = SCTP_ILL_TO_PHYINDEX(ill); 754*1d19ca10Svi /* 755*1d19ca10Svi * if the new index hashes to the same value, all's 756*1d19ca10Svi * done. 757*1d19ca10Svi */ 758*1d19ca10Svi if (nindx != indx) { 759*1d19ca10Svi list_remove( 760*1d19ca10Svi &sctps->sctps_g_ills[indx].sctp_ill_list, 761*1d19ca10Svi (void *)sctp_ill); 762*1d19ca10Svi sctps->sctps_g_ills[indx].ill_count--; 763*1d19ca10Svi list_insert_tail( 764*1d19ca10Svi &sctps->sctps_g_ills[nindx].sctp_ill_list, 765*1d19ca10Svi (void *)sctp_ill); 766*1d19ca10Svi sctps->sctps_g_ills[nindx].ill_count++; 767*1d19ca10Svi } 768*1d19ca10Svi if (once) 769*1d19ca10Svi break; 770*1d19ca10Svi /* We might have one for v4 and for v6 */ 771*1d19ca10Svi once = B_TRUE; 772*1d19ca10Svi } 773*1d19ca10Svi sctp_ill = nxt_sill; 774*1d19ca10Svi } 775*1d19ca10Svi rw_exit(&sctps->sctps_g_ills_lock); 776*1d19ca10Svi } 777*1d19ca10Svi 7787c478bd9Sstevel@tonic-gate /* move ipif from f_ill to t_ill */ 7797c478bd9Sstevel@tonic-gate void 7807c478bd9Sstevel@tonic-gate sctp_move_ipif(ipif_t *ipif, ill_t *f_ill, ill_t *t_ill) 7817c478bd9Sstevel@tonic-gate { 7827c478bd9Sstevel@tonic-gate sctp_ill_t *fsctp_ill = NULL; 7837c478bd9Sstevel@tonic-gate sctp_ill_t *tsctp_ill = NULL; 7847c478bd9Sstevel@tonic-gate sctp_ipif_t *sctp_ipif; 785e35d2278Svi uint_t hindex; 7867c478bd9Sstevel@tonic-gate int i; 787f4b3ec61Sdh netstack_t *ns = ipif->ipif_ill->ill_ipst->ips_netstack; 788f4b3ec61Sdh sctp_stack_t *sctps = ns->netstack_sctp; 7897c478bd9Sstevel@tonic-gate 790f4b3ec61Sdh rw_enter(&sctps->sctps_g_ills_lock, RW_READER); 791f4b3ec61Sdh rw_enter(&sctps->sctps_g_ipifs_lock, RW_READER); 7927c478bd9Sstevel@tonic-gate 793e35d2278Svi hindex = SCTP_ILL_HASH_FN(SCTP_ILL_TO_PHYINDEX(f_ill)); 794e35d2278Svi fsctp_ill = list_head(&sctps->sctps_g_ills[hindex].sctp_ill_list); 795e35d2278Svi for (i = 0; i < sctps->sctps_g_ills[hindex].ill_count; i++) { 796*1d19ca10Svi if (fsctp_ill->sctp_ill_index == SCTP_ILL_TO_PHYINDEX(f_ill) && 797*1d19ca10Svi fsctp_ill->sctp_ill_isv6 == f_ill->ill_isv6) { 7987c478bd9Sstevel@tonic-gate break; 799*1d19ca10Svi } 800e35d2278Svi fsctp_ill = list_next( 801e35d2278Svi &sctps->sctps_g_ills[hindex].sctp_ill_list, fsctp_ill); 8027c478bd9Sstevel@tonic-gate } 8037c478bd9Sstevel@tonic-gate 804e35d2278Svi hindex = SCTP_ILL_HASH_FN(SCTP_ILL_TO_PHYINDEX(t_ill)); 805e35d2278Svi tsctp_ill = list_head(&sctps->sctps_g_ills[hindex].sctp_ill_list); 806e35d2278Svi for (i = 0; i < sctps->sctps_g_ills[hindex].ill_count; i++) { 807*1d19ca10Svi if (tsctp_ill->sctp_ill_index == SCTP_ILL_TO_PHYINDEX(t_ill) && 808*1d19ca10Svi tsctp_ill->sctp_ill_isv6 == t_ill->ill_isv6) { 8097c478bd9Sstevel@tonic-gate break; 810*1d19ca10Svi } 811e35d2278Svi tsctp_ill = list_next( 812e35d2278Svi &sctps->sctps_g_ills[hindex].sctp_ill_list, tsctp_ill); 8137c478bd9Sstevel@tonic-gate } 8147c478bd9Sstevel@tonic-gate 815e35d2278Svi hindex = SCTP_IPIF_ADDR_HASH(ipif->ipif_v6lcl_addr, 816e35d2278Svi ipif->ipif_ill->ill_isv6); 817e35d2278Svi sctp_ipif = list_head(&sctps->sctps_g_ipifs[hindex].sctp_ipif_list); 818e35d2278Svi for (i = 0; i < sctps->sctps_g_ipifs[hindex].ipif_count; i++) { 8197c478bd9Sstevel@tonic-gate if (sctp_ipif->sctp_ipif_id == ipif->ipif_seqid) 8207c478bd9Sstevel@tonic-gate break; 821f4b3ec61Sdh sctp_ipif = list_next( 822e35d2278Svi &sctps->sctps_g_ipifs[hindex].sctp_ipif_list, sctp_ipif); 8237c478bd9Sstevel@tonic-gate } 8247c478bd9Sstevel@tonic-gate /* Should be an ASSERT? */ 8257c478bd9Sstevel@tonic-gate if (fsctp_ill == NULL || tsctp_ill == NULL || sctp_ipif == NULL) { 8267c478bd9Sstevel@tonic-gate ip1dbg(("sctp_move_ipif: error moving ipif %p from %p to %p\n", 8277c478bd9Sstevel@tonic-gate (void *)ipif, (void *)f_ill, (void *)t_ill)); 828f4b3ec61Sdh rw_exit(&sctps->sctps_g_ipifs_lock); 829f4b3ec61Sdh rw_exit(&sctps->sctps_g_ills_lock); 8307c478bd9Sstevel@tonic-gate return; 8317c478bd9Sstevel@tonic-gate } 8327c478bd9Sstevel@tonic-gate rw_enter(&sctp_ipif->sctp_ipif_lock, RW_WRITER); 8337c478bd9Sstevel@tonic-gate ASSERT(sctp_ipif->sctp_ipif_ill == fsctp_ill); 8347c478bd9Sstevel@tonic-gate sctp_ipif->sctp_ipif_ill = tsctp_ill; 8357c478bd9Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 8367c478bd9Sstevel@tonic-gate (void) atomic_add_32_nv(&fsctp_ill->sctp_ill_ipifcnt, -1); 8377c478bd9Sstevel@tonic-gate atomic_add_32(&tsctp_ill->sctp_ill_ipifcnt, 1); 838f4b3ec61Sdh rw_exit(&sctps->sctps_g_ipifs_lock); 839f4b3ec61Sdh rw_exit(&sctps->sctps_g_ills_lock); 8407c478bd9Sstevel@tonic-gate } 8417c478bd9Sstevel@tonic-gate 842e35d2278Svi /* 843e35d2278Svi * Walk the list of SCTPs and find each that has oipif in it's saddr list, and 844e35d2278Svi * if so replace it with nipif. 845e35d2278Svi */ 846e35d2278Svi void 847e35d2278Svi sctp_update_saddrs(sctp_ipif_t *oipif, sctp_ipif_t *nipif, int idx, 848e35d2278Svi sctp_stack_t *sctps) 849e35d2278Svi { 850e35d2278Svi sctp_t *sctp; 851e35d2278Svi sctp_t *sctp_prev = NULL; 852e35d2278Svi sctp_saddr_ipif_t *sobj; 853e35d2278Svi int count; 854e35d2278Svi 855e35d2278Svi sctp = sctps->sctps_gsctp; 856e35d2278Svi mutex_enter(&sctps->sctps_g_lock); 857e35d2278Svi while (sctp != NULL && oipif->sctp_ipif_refcnt > 0) { 858e35d2278Svi mutex_enter(&sctp->sctp_reflock); 859e35d2278Svi if (sctp->sctp_condemned || 860e35d2278Svi sctp->sctp_saddrs[idx].ipif_count <= 0) { 861e35d2278Svi mutex_exit(&sctp->sctp_reflock); 862e35d2278Svi sctp = list_next(&sctps->sctps_g_list, sctp); 863e35d2278Svi continue; 864e35d2278Svi } 865e35d2278Svi sctp->sctp_refcnt++; 866e35d2278Svi mutex_exit(&sctp->sctp_reflock); 867e35d2278Svi mutex_exit(&sctps->sctps_g_lock); 868e35d2278Svi if (sctp_prev != NULL) 869e35d2278Svi SCTP_REFRELE(sctp_prev); 870e35d2278Svi 871e35d2278Svi RUN_SCTP(sctp); 872e35d2278Svi sobj = list_head(&sctp->sctp_saddrs[idx].sctp_ipif_list); 873e35d2278Svi for (count = 0; count < 874e35d2278Svi sctp->sctp_saddrs[idx].ipif_count; count++) { 875e35d2278Svi if (sobj->saddr_ipifp == oipif) { 876e35d2278Svi SCTP_IPIF_REFHOLD(nipif); 877e35d2278Svi sobj->saddr_ipifp = nipif; 878e35d2278Svi ASSERT(oipif->sctp_ipif_refcnt > 0); 879e35d2278Svi /* We have the writer lock */ 880e35d2278Svi oipif->sctp_ipif_refcnt--; 881e35d2278Svi /* 882e35d2278Svi * Can't have more than one referring 883e35d2278Svi * to the same sctp_ipif. 884e35d2278Svi */ 885e35d2278Svi break; 886e35d2278Svi } 887e35d2278Svi sobj = list_next(&sctp->sctp_saddrs[idx].sctp_ipif_list, 888e35d2278Svi sobj); 889e35d2278Svi } 890e35d2278Svi WAKE_SCTP(sctp); 891e35d2278Svi sctp_prev = sctp; 892e35d2278Svi mutex_enter(&sctps->sctps_g_lock); 893e35d2278Svi sctp = list_next(&sctps->sctps_g_list, sctp); 894e35d2278Svi } 895e35d2278Svi mutex_exit(&sctps->sctps_g_lock); 896e35d2278Svi if (sctp_prev != NULL) 897e35d2278Svi SCTP_REFRELE(sctp_prev); 898e35d2278Svi } 899e35d2278Svi 900e35d2278Svi /* 901e35d2278Svi * Given an ipif, walk the hash list in the global ipif table and for 902e35d2278Svi * any other SCTP ipif with the same address and non-zero reference, walk 903e35d2278Svi * the SCTP list and update the saddr list, if required, to point to the 904e35d2278Svi * new SCTP ipif. 905e35d2278Svi */ 906e35d2278Svi void 907e35d2278Svi sctp_chk_and_updt_saddr(int hindex, sctp_ipif_t *ipif, sctp_stack_t *sctps) 908e35d2278Svi { 909e35d2278Svi int cnt; 910e35d2278Svi sctp_ipif_t *sipif; 911e35d2278Svi 912e35d2278Svi ASSERT(sctps->sctps_g_ipifs[hindex].ipif_count > 0); 913e35d2278Svi ASSERT(ipif->sctp_ipif_state == SCTP_IPIFS_UP); 914e35d2278Svi 915e35d2278Svi sipif = list_head(&sctps->sctps_g_ipifs[hindex].sctp_ipif_list); 916e35d2278Svi for (cnt = 0; cnt < sctps->sctps_g_ipifs[hindex].ipif_count; cnt++) { 917e35d2278Svi rw_enter(&sipif->sctp_ipif_lock, RW_WRITER); 918e35d2278Svi if (sipif->sctp_ipif_id != ipif->sctp_ipif_id && 919e35d2278Svi IN6_ARE_ADDR_EQUAL(&sipif->sctp_ipif_saddr, 920e35d2278Svi &ipif->sctp_ipif_saddr) && sipif->sctp_ipif_refcnt > 0) { 921e35d2278Svi /* 922e35d2278Svi * There can only be one address up at any time 923e35d2278Svi * and we are here because ipif has been brought 924e35d2278Svi * up. 925e35d2278Svi */ 926e35d2278Svi ASSERT(sipif->sctp_ipif_state != SCTP_IPIFS_UP); 927e35d2278Svi /* 928e35d2278Svi * Someone has a reference to this we need to update to 929e35d2278Svi * point to the new sipif. 930e35d2278Svi */ 931e35d2278Svi sctp_update_saddrs(sipif, ipif, hindex, sctps); 932e35d2278Svi } 933e35d2278Svi rw_exit(&sipif->sctp_ipif_lock); 934e35d2278Svi sipif = list_next(&sctps->sctps_g_ipifs[hindex].sctp_ipif_list, 935e35d2278Svi sipif); 936e35d2278Svi } 937e35d2278Svi } 938e35d2278Svi 939e35d2278Svi /* 940e35d2278Svi * Insert a new SCTP ipif using 'ipif'. v6addr is the address that existed 941e35d2278Svi * prior to the current address in 'ipif'. Only when an existing address 942e35d2278Svi * is changed on an IPIF, will v6addr be specified. If the IPIF already 943e35d2278Svi * exists in the global SCTP ipif table, then we either removed it, if 944e35d2278Svi * it doesn't have any existing reference, or mark it condemned otherwise. 945e35d2278Svi * If an address is being brought up (IPIF_UP), then we need to scan 946e35d2278Svi * the SCTP list to check if there is any SCTP that points to the *same* 947e35d2278Svi * address on a different SCTP ipif and update in that case. 948e35d2278Svi */ 949e35d2278Svi void 950e35d2278Svi sctp_update_ipif_addr(ipif_t *ipif, in6_addr_t v6addr) 951e35d2278Svi { 952e35d2278Svi ill_t *ill = ipif->ipif_ill; 953e35d2278Svi int i; 954e35d2278Svi sctp_ill_t *sctp_ill; 955e35d2278Svi sctp_ill_t *osctp_ill; 956e35d2278Svi sctp_ipif_t *sctp_ipif = NULL; 957e35d2278Svi sctp_ipif_t *osctp_ipif = NULL; 958e35d2278Svi uint_t ill_index; 959e35d2278Svi int hindex; 960e35d2278Svi sctp_stack_t *sctps; 961e35d2278Svi 962e35d2278Svi 963e35d2278Svi sctps = ipif->ipif_ill->ill_ipst->ips_netstack->netstack_sctp; 964e35d2278Svi 965e35d2278Svi /* Index for new address */ 966e35d2278Svi hindex = SCTP_IPIF_ADDR_HASH(ipif->ipif_v6lcl_addr, ill->ill_isv6); 967e35d2278Svi 968e35d2278Svi /* 969e35d2278Svi * The address on this IPIF is changing, we need to look for 970e35d2278Svi * this old address and mark it condemned, before creating 971e35d2278Svi * one for the new address. 972e35d2278Svi */ 973e35d2278Svi osctp_ipif = sctp_lookup_ipif_addr(&v6addr, B_FALSE, 974e35d2278Svi ipif->ipif_zoneid, B_TRUE, SCTP_ILL_TO_PHYINDEX(ill), 975e35d2278Svi ipif->ipif_seqid, B_FALSE, sctps); 976e35d2278Svi 977e35d2278Svi rw_enter(&sctps->sctps_g_ills_lock, RW_READER); 978e35d2278Svi rw_enter(&sctps->sctps_g_ipifs_lock, RW_WRITER); 979e35d2278Svi 980e35d2278Svi ill_index = SCTP_ILL_HASH_FN(SCTP_ILL_TO_PHYINDEX(ill)); 981e35d2278Svi sctp_ill = list_head(&sctps->sctps_g_ills[ill_index].sctp_ill_list); 982e35d2278Svi for (i = 0; i < sctps->sctps_g_ills[ill_index].ill_count; i++) { 983*1d19ca10Svi if (sctp_ill->sctp_ill_index == SCTP_ILL_TO_PHYINDEX(ill) && 984*1d19ca10Svi sctp_ill->sctp_ill_isv6 == ill->ill_isv6) { 985e35d2278Svi break; 986*1d19ca10Svi } 987e35d2278Svi sctp_ill = list_next( 988e35d2278Svi &sctps->sctps_g_ills[ill_index].sctp_ill_list, sctp_ill); 989e35d2278Svi } 990e35d2278Svi 991e35d2278Svi if (sctp_ill == NULL) { 992*1d19ca10Svi ip1dbg(("sctp_update_ipif_addr: ill not found ..\n")); 993e35d2278Svi rw_exit(&sctps->sctps_g_ipifs_lock); 994e35d2278Svi rw_exit(&sctps->sctps_g_ills_lock); 995*1d19ca10Svi return; 996e35d2278Svi } 997e35d2278Svi 998e35d2278Svi if (osctp_ipif != NULL) { 999e35d2278Svi 1000e35d2278Svi /* The address is the same? */ 1001e35d2278Svi if (IN6_ARE_ADDR_EQUAL(&ipif->ipif_v6lcl_addr, &v6addr)) { 1002e35d2278Svi boolean_t chk_n_updt = B_FALSE; 1003e35d2278Svi 1004e35d2278Svi rw_downgrade(&sctps->sctps_g_ipifs_lock); 1005e35d2278Svi rw_enter(&osctp_ipif->sctp_ipif_lock, RW_WRITER); 1006e35d2278Svi if (ipif->ipif_flags & IPIF_UP && 1007e35d2278Svi osctp_ipif->sctp_ipif_state != SCTP_IPIFS_UP) { 1008e35d2278Svi osctp_ipif->sctp_ipif_state = SCTP_IPIFS_UP; 1009e35d2278Svi chk_n_updt = B_TRUE; 1010e35d2278Svi } else { 1011e35d2278Svi osctp_ipif->sctp_ipif_state = SCTP_IPIFS_DOWN; 1012e35d2278Svi } 1013e35d2278Svi osctp_ipif->sctp_ipif_flags = ipif->ipif_flags; 1014e35d2278Svi rw_exit(&osctp_ipif->sctp_ipif_lock); 1015e35d2278Svi if (chk_n_updt) { 1016e35d2278Svi sctp_chk_and_updt_saddr(hindex, osctp_ipif, 1017e35d2278Svi sctps); 1018e35d2278Svi } 1019e35d2278Svi rw_exit(&sctps->sctps_g_ipifs_lock); 1020e35d2278Svi rw_exit(&sctps->sctps_g_ills_lock); 1021e35d2278Svi return; 1022e35d2278Svi } 1023e35d2278Svi /* 1024e35d2278Svi * We are effectively removing this address from the ILL. 1025e35d2278Svi */ 1026e35d2278Svi if (osctp_ipif->sctp_ipif_refcnt != 0) { 1027e35d2278Svi osctp_ipif->sctp_ipif_state = SCTP_IPIFS_CONDEMNED; 1028e35d2278Svi } else { 1029e35d2278Svi list_t *ipif_list; 1030e35d2278Svi int ohindex; 1031e35d2278Svi 1032e35d2278Svi osctp_ill = osctp_ipif->sctp_ipif_ill; 1033e35d2278Svi /* hash index for the old one */ 1034e35d2278Svi ohindex = SCTP_IPIF_ADDR_HASH( 1035e35d2278Svi osctp_ipif->sctp_ipif_saddr, 1036e35d2278Svi osctp_ipif->sctp_ipif_isv6); 1037e35d2278Svi 1038e35d2278Svi ipif_list = 1039e35d2278Svi &sctps->sctps_g_ipifs[ohindex].sctp_ipif_list; 1040e35d2278Svi 1041e35d2278Svi list_remove(ipif_list, (void *)osctp_ipif); 1042e35d2278Svi sctps->sctps_g_ipifs[ohindex].ipif_count--; 1043e35d2278Svi sctps->sctps_g_ipifs_count--; 1044e35d2278Svi rw_destroy(&osctp_ipif->sctp_ipif_lock); 1045e35d2278Svi kmem_free(osctp_ipif, sizeof (sctp_ipif_t)); 1046e35d2278Svi (void) atomic_add_32_nv(&osctp_ill->sctp_ill_ipifcnt, 1047e35d2278Svi -1); 1048e35d2278Svi } 1049e35d2278Svi } 1050e35d2278Svi 1051e35d2278Svi sctp_ipif = kmem_zalloc(sizeof (sctp_ipif_t), KM_NOSLEEP); 1052e35d2278Svi /* Try again? */ 1053e35d2278Svi if (sctp_ipif == NULL) { 1054*1d19ca10Svi cmn_err(CE_WARN, "sctp_update_ipif_addr: error adding " 1055*1d19ca10Svi "IPIF %p to SCTP's IPIF list", (void *)ipif); 1056e35d2278Svi rw_exit(&sctps->sctps_g_ipifs_lock); 1057e35d2278Svi rw_exit(&sctps->sctps_g_ills_lock); 1058e35d2278Svi return; 1059e35d2278Svi } 1060e35d2278Svi sctps->sctps_g_ipifs_count++; 1061e35d2278Svi rw_init(&sctp_ipif->sctp_ipif_lock, NULL, RW_DEFAULT, NULL); 1062e35d2278Svi sctp_ipif->sctp_ipif_saddr = ipif->ipif_v6lcl_addr; 1063e35d2278Svi sctp_ipif->sctp_ipif_ill = sctp_ill; 1064e35d2278Svi sctp_ipif->sctp_ipif_isv6 = ill->ill_isv6; 1065e35d2278Svi sctp_ipif->sctp_ipif_zoneid = ipif->ipif_zoneid; 1066e35d2278Svi sctp_ipif->sctp_ipif_id = ipif->ipif_seqid; 1067e35d2278Svi if (ipif->ipif_flags & IPIF_UP) 1068e35d2278Svi sctp_ipif->sctp_ipif_state = SCTP_IPIFS_UP; 1069e35d2278Svi else 1070e35d2278Svi sctp_ipif->sctp_ipif_state = SCTP_IPIFS_DOWN; 1071e35d2278Svi sctp_ipif->sctp_ipif_flags = ipif->ipif_flags; 1072e35d2278Svi /* 1073e35d2278Svi * We add it to the head so that it is quicker to find good/recent 1074e35d2278Svi * additions. 1075e35d2278Svi */ 1076e35d2278Svi list_insert_head(&sctps->sctps_g_ipifs[hindex].sctp_ipif_list, 1077e35d2278Svi (void *)sctp_ipif); 1078e35d2278Svi sctps->sctps_g_ipifs[hindex].ipif_count++; 1079e35d2278Svi atomic_add_32(&sctp_ill->sctp_ill_ipifcnt, 1); 1080e35d2278Svi if (sctp_ipif->sctp_ipif_state == SCTP_IPIFS_UP) 1081e35d2278Svi sctp_chk_and_updt_saddr(hindex, sctp_ipif, sctps); 1082e35d2278Svi rw_exit(&sctps->sctps_g_ipifs_lock); 1083e35d2278Svi rw_exit(&sctps->sctps_g_ills_lock); 1084e35d2278Svi } 1085e35d2278Svi 10867c478bd9Sstevel@tonic-gate /* Insert, Remove, Mark up or Mark down the ipif */ 10877c478bd9Sstevel@tonic-gate void 10887c478bd9Sstevel@tonic-gate sctp_update_ipif(ipif_t *ipif, int op) 10897c478bd9Sstevel@tonic-gate { 10907c478bd9Sstevel@tonic-gate ill_t *ill = ipif->ipif_ill; 10917c478bd9Sstevel@tonic-gate int i; 10927c478bd9Sstevel@tonic-gate sctp_ill_t *sctp_ill; 10937c478bd9Sstevel@tonic-gate sctp_ipif_t *sctp_ipif; 10947c478bd9Sstevel@tonic-gate uint_t ill_index; 1095e35d2278Svi uint_t hindex; 1096f4b3ec61Sdh netstack_t *ns = ipif->ipif_ill->ill_ipst->ips_netstack; 1097f4b3ec61Sdh sctp_stack_t *sctps = ns->netstack_sctp; 10987c478bd9Sstevel@tonic-gate 10997c478bd9Sstevel@tonic-gate ip2dbg(("sctp_update_ipif: %s %d\n", ill->ill_name, ipif->ipif_seqid)); 11007c478bd9Sstevel@tonic-gate 1101f4b3ec61Sdh rw_enter(&sctps->sctps_g_ills_lock, RW_READER); 1102f4b3ec61Sdh rw_enter(&sctps->sctps_g_ipifs_lock, RW_WRITER); 11037c478bd9Sstevel@tonic-gate 11047c478bd9Sstevel@tonic-gate ill_index = SCTP_ILL_HASH_FN(SCTP_ILL_TO_PHYINDEX(ill)); 1105f4b3ec61Sdh sctp_ill = list_head(&sctps->sctps_g_ills[ill_index].sctp_ill_list); 1106f4b3ec61Sdh for (i = 0; i < sctps->sctps_g_ills[ill_index].ill_count; i++) { 1107*1d19ca10Svi if (sctp_ill->sctp_ill_index == SCTP_ILL_TO_PHYINDEX(ill) && 1108*1d19ca10Svi sctp_ill->sctp_ill_isv6 == ill->ill_isv6) { 11097c478bd9Sstevel@tonic-gate break; 1110*1d19ca10Svi } 1111f4b3ec61Sdh sctp_ill = list_next( 1112f4b3ec61Sdh &sctps->sctps_g_ills[ill_index].sctp_ill_list, sctp_ill); 11137c478bd9Sstevel@tonic-gate } 11147c478bd9Sstevel@tonic-gate if (sctp_ill == NULL) { 1115f4b3ec61Sdh rw_exit(&sctps->sctps_g_ipifs_lock); 1116f4b3ec61Sdh rw_exit(&sctps->sctps_g_ills_lock); 11177c478bd9Sstevel@tonic-gate return; 11187c478bd9Sstevel@tonic-gate } 11197c478bd9Sstevel@tonic-gate 1120e35d2278Svi hindex = SCTP_IPIF_ADDR_HASH(ipif->ipif_v6lcl_addr, 1121e35d2278Svi ipif->ipif_ill->ill_isv6); 1122e35d2278Svi sctp_ipif = list_head(&sctps->sctps_g_ipifs[hindex].sctp_ipif_list); 1123e35d2278Svi for (i = 0; i < sctps->sctps_g_ipifs[hindex].ipif_count; i++) { 1124e35d2278Svi if (sctp_ipif->sctp_ipif_id == ipif->ipif_seqid) { 1125e35d2278Svi ASSERT(IN6_ARE_ADDR_EQUAL(&sctp_ipif->sctp_ipif_saddr, 1126e35d2278Svi &ipif->ipif_v6lcl_addr)); 11277c478bd9Sstevel@tonic-gate break; 1128e35d2278Svi } 1129f4b3ec61Sdh sctp_ipif = list_next( 1130e35d2278Svi &sctps->sctps_g_ipifs[hindex].sctp_ipif_list, 11317c478bd9Sstevel@tonic-gate sctp_ipif); 11327c478bd9Sstevel@tonic-gate } 1133e35d2278Svi if (sctp_ipif == NULL) { 11347c478bd9Sstevel@tonic-gate ip1dbg(("sctp_update_ipif: null sctp_ipif for %d\n", op)); 1135f4b3ec61Sdh rw_exit(&sctps->sctps_g_ipifs_lock); 1136f4b3ec61Sdh rw_exit(&sctps->sctps_g_ills_lock); 11377c478bd9Sstevel@tonic-gate return; 11387c478bd9Sstevel@tonic-gate } 1139e35d2278Svi ASSERT(sctp_ill == sctp_ipif->sctp_ipif_ill); 11407c478bd9Sstevel@tonic-gate switch (op) { 11417c478bd9Sstevel@tonic-gate case SCTP_IPIF_REMOVE: 11427c478bd9Sstevel@tonic-gate { 11437c478bd9Sstevel@tonic-gate list_t *ipif_list; 11447c478bd9Sstevel@tonic-gate list_t *ill_list; 11457c478bd9Sstevel@tonic-gate 1146f4b3ec61Sdh ill_list = &sctps->sctps_g_ills[ill_index].sctp_ill_list; 1147e35d2278Svi ipif_list = &sctps->sctps_g_ipifs[hindex].sctp_ipif_list; 11487c478bd9Sstevel@tonic-gate if (sctp_ipif->sctp_ipif_refcnt != 0) { 11497c478bd9Sstevel@tonic-gate sctp_ipif->sctp_ipif_state = SCTP_IPIFS_CONDEMNED; 1150f4b3ec61Sdh rw_exit(&sctps->sctps_g_ipifs_lock); 1151f4b3ec61Sdh rw_exit(&sctps->sctps_g_ills_lock); 11527c478bd9Sstevel@tonic-gate return; 11537c478bd9Sstevel@tonic-gate } 11547c478bd9Sstevel@tonic-gate list_remove(ipif_list, (void *)sctp_ipif); 1155e35d2278Svi sctps->sctps_g_ipifs[hindex].ipif_count--; 1156f4b3ec61Sdh sctps->sctps_g_ipifs_count--; 11577c478bd9Sstevel@tonic-gate rw_destroy(&sctp_ipif->sctp_ipif_lock); 11587c478bd9Sstevel@tonic-gate kmem_free(sctp_ipif, sizeof (sctp_ipif_t)); 11597c478bd9Sstevel@tonic-gate (void) atomic_add_32_nv(&sctp_ill->sctp_ill_ipifcnt, -1); 1160f4b3ec61Sdh if (rw_tryupgrade(&sctps->sctps_g_ills_lock) != 0) { 1161f4b3ec61Sdh rw_downgrade(&sctps->sctps_g_ipifs_lock); 11627c478bd9Sstevel@tonic-gate if (sctp_ill->sctp_ill_ipifcnt == 0 && 11637c478bd9Sstevel@tonic-gate sctp_ill->sctp_ill_state == SCTP_ILLS_CONDEMNED) { 11647c478bd9Sstevel@tonic-gate list_remove(ill_list, (void *)sctp_ill); 1165f4b3ec61Sdh sctps->sctps_ills_count--; 1166f4b3ec61Sdh sctps->sctps_g_ills[ill_index].ill_count--; 11677c478bd9Sstevel@tonic-gate kmem_free(sctp_ill->sctp_ill_name, 11687c478bd9Sstevel@tonic-gate sctp_ill->sctp_ill_name_length); 11697c478bd9Sstevel@tonic-gate kmem_free(sctp_ill, sizeof (sctp_ill_t)); 11707c478bd9Sstevel@tonic-gate } 11717c478bd9Sstevel@tonic-gate } 11727c478bd9Sstevel@tonic-gate break; 11737c478bd9Sstevel@tonic-gate } 11747c478bd9Sstevel@tonic-gate 11757c478bd9Sstevel@tonic-gate case SCTP_IPIF_UP: 11767c478bd9Sstevel@tonic-gate 1177f4b3ec61Sdh rw_downgrade(&sctps->sctps_g_ipifs_lock); 11787c478bd9Sstevel@tonic-gate rw_enter(&sctp_ipif->sctp_ipif_lock, RW_WRITER); 11797c478bd9Sstevel@tonic-gate sctp_ipif->sctp_ipif_state = SCTP_IPIFS_UP; 1180f551bb10Svi sctp_ipif->sctp_ipif_mtu = ipif->ipif_mtu; 1181e35d2278Svi sctp_ipif->sctp_ipif_flags = ipif->ipif_flags; 11827c478bd9Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 1183e35d2278Svi sctp_chk_and_updt_saddr(hindex, sctp_ipif, 1184e35d2278Svi ipif->ipif_ill->ill_ipst->ips_netstack->netstack_sctp); 11857c478bd9Sstevel@tonic-gate 11867c478bd9Sstevel@tonic-gate break; 11877c478bd9Sstevel@tonic-gate 11887c478bd9Sstevel@tonic-gate case SCTP_IPIF_UPDATE: 11897c478bd9Sstevel@tonic-gate 1190f4b3ec61Sdh rw_downgrade(&sctps->sctps_g_ipifs_lock); 11917c478bd9Sstevel@tonic-gate rw_enter(&sctp_ipif->sctp_ipif_lock, RW_WRITER); 11927c478bd9Sstevel@tonic-gate sctp_ipif->sctp_ipif_mtu = ipif->ipif_mtu; 11937c478bd9Sstevel@tonic-gate sctp_ipif->sctp_ipif_zoneid = ipif->ipif_zoneid; 1194f551bb10Svi sctp_ipif->sctp_ipif_flags = ipif->ipif_flags; 11957c478bd9Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 11967c478bd9Sstevel@tonic-gate 11977c478bd9Sstevel@tonic-gate break; 11987c478bd9Sstevel@tonic-gate 11997c478bd9Sstevel@tonic-gate case SCTP_IPIF_DOWN: 12007c478bd9Sstevel@tonic-gate 1201f4b3ec61Sdh rw_downgrade(&sctps->sctps_g_ipifs_lock); 12027c478bd9Sstevel@tonic-gate rw_enter(&sctp_ipif->sctp_ipif_lock, RW_WRITER); 12037c478bd9Sstevel@tonic-gate sctp_ipif->sctp_ipif_state = SCTP_IPIFS_DOWN; 1204e35d2278Svi sctp_ipif->sctp_ipif_mtu = ipif->ipif_mtu; 1205e35d2278Svi sctp_ipif->sctp_ipif_flags = ipif->ipif_flags; 12067c478bd9Sstevel@tonic-gate rw_exit(&sctp_ipif->sctp_ipif_lock); 12077c478bd9Sstevel@tonic-gate 12087c478bd9Sstevel@tonic-gate break; 12097c478bd9Sstevel@tonic-gate } 1210f4b3ec61Sdh rw_exit(&sctps->sctps_g_ipifs_lock); 1211f4b3ec61Sdh rw_exit(&sctps->sctps_g_ills_lock); 12127c478bd9Sstevel@tonic-gate } 12137c478bd9Sstevel@tonic-gate 12147c478bd9Sstevel@tonic-gate /* 12157c478bd9Sstevel@tonic-gate * SCTP source address list manipulaton, locking not used (except for 12167c478bd9Sstevel@tonic-gate * sctp locking by the caller. 12177c478bd9Sstevel@tonic-gate */ 12187c478bd9Sstevel@tonic-gate 12197c478bd9Sstevel@tonic-gate /* Remove a specific saddr from the list */ 12207c478bd9Sstevel@tonic-gate void 12217c478bd9Sstevel@tonic-gate sctp_del_saddr(sctp_t *sctp, sctp_saddr_ipif_t *sp) 12227c478bd9Sstevel@tonic-gate { 12237c478bd9Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 12247c478bd9Sstevel@tonic-gate mutex_enter(&sctp->sctp_conn_tfp->tf_lock); 12257c478bd9Sstevel@tonic-gate 12267c478bd9Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 12277c478bd9Sstevel@tonic-gate mutex_enter(&sctp->sctp_listen_tfp->tf_lock); 12287c478bd9Sstevel@tonic-gate 12297c478bd9Sstevel@tonic-gate sctp_ipif_hash_remove(sctp, sp->saddr_ipifp); 12307c478bd9Sstevel@tonic-gate 1231f551bb10Svi if (sctp->sctp_bound_to_all == 1) 12327c478bd9Sstevel@tonic-gate sctp->sctp_bound_to_all = 0; 12337c478bd9Sstevel@tonic-gate 12347c478bd9Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 12357c478bd9Sstevel@tonic-gate mutex_exit(&sctp->sctp_conn_tfp->tf_lock); 12367c478bd9Sstevel@tonic-gate 12377c478bd9Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 12387c478bd9Sstevel@tonic-gate mutex_exit(&sctp->sctp_listen_tfp->tf_lock); 12397c478bd9Sstevel@tonic-gate } 12407c478bd9Sstevel@tonic-gate 12417c478bd9Sstevel@tonic-gate /* 12427c478bd9Sstevel@tonic-gate * Delete source address from the existing list. No error checking done here 12437c478bd9Sstevel@tonic-gate * Called with no locks held. 12447c478bd9Sstevel@tonic-gate */ 12457c478bd9Sstevel@tonic-gate void 12467c478bd9Sstevel@tonic-gate sctp_del_saddr_list(sctp_t *sctp, const void *addrs, int addcnt, 12477c478bd9Sstevel@tonic-gate boolean_t fanout_locked) 12487c478bd9Sstevel@tonic-gate { 12497c478bd9Sstevel@tonic-gate struct sockaddr_in *sin4; 12507c478bd9Sstevel@tonic-gate struct sockaddr_in6 *sin6; 12517c478bd9Sstevel@tonic-gate int cnt; 12527c478bd9Sstevel@tonic-gate in6_addr_t addr; 12537c478bd9Sstevel@tonic-gate sctp_ipif_t *sctp_ipif; 12541d8c4025Svi int ifindex = 0; 12557c478bd9Sstevel@tonic-gate 12561d8c4025Svi ASSERT(sctp->sctp_nsaddrs >= addcnt); 12577c478bd9Sstevel@tonic-gate 12587c478bd9Sstevel@tonic-gate if (!fanout_locked) { 12597c478bd9Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 12607c478bd9Sstevel@tonic-gate mutex_enter(&sctp->sctp_conn_tfp->tf_lock); 12617c478bd9Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 12627c478bd9Sstevel@tonic-gate mutex_enter(&sctp->sctp_listen_tfp->tf_lock); 12637c478bd9Sstevel@tonic-gate } 12647c478bd9Sstevel@tonic-gate 12657c478bd9Sstevel@tonic-gate for (cnt = 0; cnt < addcnt; cnt++) { 12667c478bd9Sstevel@tonic-gate switch (sctp->sctp_family) { 12677c478bd9Sstevel@tonic-gate case AF_INET: 12687c478bd9Sstevel@tonic-gate sin4 = (struct sockaddr_in *)addrs + cnt; 12697c478bd9Sstevel@tonic-gate IN6_INADDR_TO_V4MAPPED(&sin4->sin_addr, &addr); 12707c478bd9Sstevel@tonic-gate break; 12717c478bd9Sstevel@tonic-gate 12727c478bd9Sstevel@tonic-gate case AF_INET6: 12737c478bd9Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)addrs + cnt; 12747c478bd9Sstevel@tonic-gate addr = sin6->sin6_addr; 12751d8c4025Svi ifindex = sin6->sin6_scope_id; 12767c478bd9Sstevel@tonic-gate break; 12777c478bd9Sstevel@tonic-gate } 1278e35d2278Svi sctp_ipif = sctp_lookup_ipif_addr(&addr, B_FALSE, 1279e35d2278Svi sctp->sctp_zoneid, !sctp->sctp_connp->conn_allzones, 1280e35d2278Svi ifindex, 0, B_TRUE, sctp->sctp_sctps); 12817c478bd9Sstevel@tonic-gate ASSERT(sctp_ipif != NULL); 12827c478bd9Sstevel@tonic-gate sctp_ipif_hash_remove(sctp, sctp_ipif); 12837c478bd9Sstevel@tonic-gate } 1284f551bb10Svi if (sctp->sctp_bound_to_all == 1) 12857c478bd9Sstevel@tonic-gate sctp->sctp_bound_to_all = 0; 12867c478bd9Sstevel@tonic-gate 12877c478bd9Sstevel@tonic-gate if (!fanout_locked) { 12887c478bd9Sstevel@tonic-gate if (sctp->sctp_conn_tfp != NULL) 12897c478bd9Sstevel@tonic-gate mutex_exit(&sctp->sctp_conn_tfp->tf_lock); 12907c478bd9Sstevel@tonic-gate if (sctp->sctp_listen_tfp != NULL) 12917c478bd9Sstevel@tonic-gate mutex_exit(&sctp->sctp_listen_tfp->tf_lock); 12927c478bd9Sstevel@tonic-gate } 12937c478bd9Sstevel@tonic-gate } 12947c478bd9Sstevel@tonic-gate 12957c478bd9Sstevel@tonic-gate /* 12967c478bd9Sstevel@tonic-gate * Given an address get the corresponding entry from the list 12977c478bd9Sstevel@tonic-gate * Called with no locks held. 12987c478bd9Sstevel@tonic-gate */ 12997c478bd9Sstevel@tonic-gate sctp_saddr_ipif_t * 13001d8c4025Svi sctp_saddr_lookup(sctp_t *sctp, in6_addr_t *addr, uint_t ifindex) 13017c478bd9Sstevel@tonic-gate { 1302e35d2278Svi int cnt; 1303e35d2278Svi sctp_saddr_ipif_t *ipif_obj; 1304e35d2278Svi int hindex; 13057c478bd9Sstevel@tonic-gate sctp_ipif_t *sctp_ipif; 13067c478bd9Sstevel@tonic-gate 1307e35d2278Svi hindex = SCTP_IPIF_ADDR_HASH(*addr, !IN6_IS_ADDR_V4MAPPED(addr)); 1308e35d2278Svi if (sctp->sctp_saddrs[hindex].ipif_count == 0) 13097c478bd9Sstevel@tonic-gate return (NULL); 13107c478bd9Sstevel@tonic-gate 1311e35d2278Svi ipif_obj = list_head(&sctp->sctp_saddrs[hindex].sctp_ipif_list); 1312e35d2278Svi for (cnt = 0; cnt < sctp->sctp_saddrs[hindex].ipif_count; cnt++) { 1313e35d2278Svi sctp_ipif = ipif_obj->saddr_ipifp; 1314e35d2278Svi /* 1315e35d2278Svi * Zone check shouldn't be needed. 1316e35d2278Svi */ 1317e35d2278Svi if (IN6_ARE_ADDR_EQUAL(addr, &sctp_ipif->sctp_ipif_saddr) && 1318e35d2278Svi (ifindex == 0 || 1319e35d2278Svi ifindex == sctp_ipif->sctp_ipif_ill->sctp_ill_index) && 1320e35d2278Svi SCTP_IPIF_USABLE(sctp_ipif->sctp_ipif_state)) { 1321e35d2278Svi return (ipif_obj); 1322e35d2278Svi } 1323e35d2278Svi ipif_obj = list_next(&sctp->sctp_saddrs[hindex].sctp_ipif_list, 1324e35d2278Svi ipif_obj); 1325e35d2278Svi } 1326e35d2278Svi return (NULL); 13277c478bd9Sstevel@tonic-gate } 13287c478bd9Sstevel@tonic-gate 1329f551bb10Svi /* Given an address, add it to the source address list */ 1330f551bb10Svi int 13311d8c4025Svi sctp_saddr_add_addr(sctp_t *sctp, in6_addr_t *addr, uint_t ifindex) 1332f551bb10Svi { 1333f551bb10Svi sctp_ipif_t *sctp_ipif; 1334f551bb10Svi 1335e35d2278Svi sctp_ipif = sctp_lookup_ipif_addr(addr, B_TRUE, sctp->sctp_zoneid, 1336e35d2278Svi !sctp->sctp_connp->conn_allzones, ifindex, 0, B_TRUE, 1337e35d2278Svi sctp->sctp_sctps); 1338f551bb10Svi if (sctp_ipif == NULL) 1339f551bb10Svi return (EINVAL); 1340f551bb10Svi 1341e35d2278Svi if (sctp_ipif_hash_insert(sctp, sctp_ipif, KM_NOSLEEP, B_FALSE, 1342e35d2278Svi B_FALSE) != 0) { 1343f551bb10Svi SCTP_IPIF_REFRELE(sctp_ipif); 1344f551bb10Svi return (EINVAL); 1345f551bb10Svi } 1346f551bb10Svi return (0); 1347f551bb10Svi } 1348f551bb10Svi 1349f551bb10Svi /* 1350f551bb10Svi * Remove or mark as dontsrc addresses that are currently not part of the 1351f551bb10Svi * association. One would delete addresses when processing an INIT and 1352f551bb10Svi * mark as dontsrc when processing an INIT-ACK. 1353f551bb10Svi */ 1354f551bb10Svi void 1355f551bb10Svi sctp_check_saddr(sctp_t *sctp, int supp_af, boolean_t delete) 1356f551bb10Svi { 1357f551bb10Svi int i; 1358f551bb10Svi int l; 1359f551bb10Svi sctp_saddr_ipif_t *obj; 1360f551bb10Svi int scanned = 0; 1361f551bb10Svi int naddr; 1362f551bb10Svi int nsaddr; 1363f551bb10Svi 1364f551bb10Svi ASSERT(!sctp->sctp_loopback && !sctp->sctp_linklocal && supp_af != 0); 1365f551bb10Svi 1366f551bb10Svi /* 1367f551bb10Svi * Irregardless of the supported address in the INIT, v4 1368f551bb10Svi * must be supported. 1369f551bb10Svi */ 1370f551bb10Svi if (sctp->sctp_family == AF_INET) 1371f551bb10Svi supp_af = PARM_SUPP_V4; 1372f551bb10Svi 1373f551bb10Svi nsaddr = sctp->sctp_nsaddrs; 1374f551bb10Svi for (i = 0; i < SCTP_IPIF_HASH; i++) { 1375f551bb10Svi if (sctp->sctp_saddrs[i].ipif_count == 0) 1376f551bb10Svi continue; 1377f551bb10Svi obj = list_head(&sctp->sctp_saddrs[i].sctp_ipif_list); 1378f551bb10Svi naddr = sctp->sctp_saddrs[i].ipif_count; 1379f551bb10Svi for (l = 0; l < naddr; l++) { 1380f551bb10Svi sctp_ipif_t *ipif; 1381f551bb10Svi 1382f551bb10Svi ipif = obj->saddr_ipifp; 1383f551bb10Svi scanned++; 1384f551bb10Svi 1385f551bb10Svi /* 1386f551bb10Svi * Delete/mark dontsrc loopback/linklocal addresses and 1387f551bb10Svi * unsupported address. 13881d8c4025Svi * On a clustered node, we trust the clustering module 13891d8c4025Svi * to do the right thing w.r.t loopback addresses, so 13901d8c4025Svi * we ignore loopback addresses in this check. 1391f551bb10Svi */ 13921d8c4025Svi if ((SCTP_IS_IPIF_LOOPBACK(ipif) && 13931d8c4025Svi cl_sctp_check_addrs == NULL) || 13941d8c4025Svi SCTP_IS_IPIF_LINKLOCAL(ipif) || 1395f551bb10Svi SCTP_UNSUPP_AF(ipif, supp_af)) { 1396f551bb10Svi if (!delete) { 1397f551bb10Svi obj->saddr_ipif_unconfirmed = 1; 1398f551bb10Svi goto next_obj; 1399f551bb10Svi } 1400f551bb10Svi if (sctp->sctp_bound_to_all == 1) 1401f551bb10Svi sctp->sctp_bound_to_all = 0; 1402f551bb10Svi if (scanned < nsaddr) { 1403f551bb10Svi obj = list_next(&sctp->sctp_saddrs[i]. 1404f551bb10Svi sctp_ipif_list, obj); 1405f551bb10Svi sctp_ipif_hash_remove(sctp, ipif); 1406f551bb10Svi continue; 1407f551bb10Svi } 1408f551bb10Svi sctp_ipif_hash_remove(sctp, ipif); 1409f551bb10Svi } 1410f551bb10Svi next_obj: 1411f551bb10Svi if (scanned >= nsaddr) 1412f551bb10Svi return; 1413f551bb10Svi obj = list_next(&sctp->sctp_saddrs[i].sctp_ipif_list, 1414f551bb10Svi obj); 1415f551bb10Svi } 1416f551bb10Svi } 1417f551bb10Svi } 1418f551bb10Svi 1419f551bb10Svi 14207c478bd9Sstevel@tonic-gate /* Get the first valid address from the list. Called with no locks held */ 14217c478bd9Sstevel@tonic-gate in6_addr_t 14227c478bd9Sstevel@tonic-gate sctp_get_valid_addr(sctp_t *sctp, boolean_t isv6) 14237c478bd9Sstevel@tonic-gate { 14247c478bd9Sstevel@tonic-gate int i; 14257c478bd9Sstevel@tonic-gate int l; 14267c478bd9Sstevel@tonic-gate sctp_saddr_ipif_t *obj; 14277c478bd9Sstevel@tonic-gate int scanned = 0; 14287c478bd9Sstevel@tonic-gate in6_addr_t addr; 14297c478bd9Sstevel@tonic-gate 14307c478bd9Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 14317c478bd9Sstevel@tonic-gate if (sctp->sctp_saddrs[i].ipif_count == 0) 14327c478bd9Sstevel@tonic-gate continue; 14337c478bd9Sstevel@tonic-gate obj = list_head(&sctp->sctp_saddrs[i].sctp_ipif_list); 14347c478bd9Sstevel@tonic-gate for (l = 0; l < sctp->sctp_saddrs[i].ipif_count; l++) { 14357c478bd9Sstevel@tonic-gate sctp_ipif_t *ipif; 14367c478bd9Sstevel@tonic-gate 14377c478bd9Sstevel@tonic-gate ipif = obj->saddr_ipifp; 1438f551bb10Svi if (!SCTP_DONT_SRC(obj) && 14397c478bd9Sstevel@tonic-gate ipif->sctp_ipif_isv6 == isv6 && 1440f551bb10Svi ipif->sctp_ipif_state == SCTP_IPIFS_UP) { 14417c478bd9Sstevel@tonic-gate return (ipif->sctp_ipif_saddr); 14427c478bd9Sstevel@tonic-gate } 14437c478bd9Sstevel@tonic-gate scanned++; 14447c478bd9Sstevel@tonic-gate if (scanned >= sctp->sctp_nsaddrs) 14457c478bd9Sstevel@tonic-gate goto got_none; 14467c478bd9Sstevel@tonic-gate obj = list_next(&sctp->sctp_saddrs[i].sctp_ipif_list, 14477c478bd9Sstevel@tonic-gate obj); 14487c478bd9Sstevel@tonic-gate } 14497c478bd9Sstevel@tonic-gate } 14507c478bd9Sstevel@tonic-gate got_none: 14517c478bd9Sstevel@tonic-gate /* Need to double check this */ 14527c478bd9Sstevel@tonic-gate if (isv6 == B_TRUE) 14537c478bd9Sstevel@tonic-gate addr = ipv6_all_zeros; 14547c478bd9Sstevel@tonic-gate else 14557c478bd9Sstevel@tonic-gate IN6_IPADDR_TO_V4MAPPED(0, &addr); 14567c478bd9Sstevel@tonic-gate 14577c478bd9Sstevel@tonic-gate return (addr); 14587c478bd9Sstevel@tonic-gate } 14597c478bd9Sstevel@tonic-gate 14607c478bd9Sstevel@tonic-gate /* 14617c478bd9Sstevel@tonic-gate * Return the list of local addresses of an association. The parameter 14627c478bd9Sstevel@tonic-gate * myaddrs is supposed to be either (struct sockaddr_in *) or (struct 14637c478bd9Sstevel@tonic-gate * sockaddr_in6 *) depending on the address family. 14647c478bd9Sstevel@tonic-gate */ 14657c478bd9Sstevel@tonic-gate int 14667c478bd9Sstevel@tonic-gate sctp_getmyaddrs(void *conn, void *myaddrs, int *addrcnt) 14677c478bd9Sstevel@tonic-gate { 14687c478bd9Sstevel@tonic-gate int i; 14697c478bd9Sstevel@tonic-gate int l; 14707c478bd9Sstevel@tonic-gate sctp_saddr_ipif_t *obj; 14717c478bd9Sstevel@tonic-gate sctp_t *sctp = (sctp_t *)conn; 14727c478bd9Sstevel@tonic-gate int family = sctp->sctp_family; 14737c478bd9Sstevel@tonic-gate int max = *addrcnt; 14747c478bd9Sstevel@tonic-gate size_t added = 0; 14757c478bd9Sstevel@tonic-gate struct sockaddr_in6 *sin6; 14767c478bd9Sstevel@tonic-gate struct sockaddr_in *sin4; 14777c478bd9Sstevel@tonic-gate int scanned = 0; 14787c478bd9Sstevel@tonic-gate boolean_t skip_lback = B_FALSE; 14797c478bd9Sstevel@tonic-gate 14807c478bd9Sstevel@tonic-gate if (sctp->sctp_nsaddrs == 0) 14817c478bd9Sstevel@tonic-gate return (EINVAL); 14827c478bd9Sstevel@tonic-gate 14831d8c4025Svi /* 14841d8c4025Svi * Skip loopback addresses for non-loopback assoc., ignore 14851d8c4025Svi * this on a clustered node. 14861d8c4025Svi */ 14871d8c4025Svi if (sctp->sctp_state >= SCTPS_ESTABLISHED && !sctp->sctp_loopback && 14881d8c4025Svi (cl_sctp_check_addrs == NULL)) { 14897c478bd9Sstevel@tonic-gate skip_lback = B_TRUE; 14901d8c4025Svi } 14911d8c4025Svi 14927c478bd9Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 14937c478bd9Sstevel@tonic-gate if (sctp->sctp_saddrs[i].ipif_count == 0) 14947c478bd9Sstevel@tonic-gate continue; 14957c478bd9Sstevel@tonic-gate obj = list_head(&sctp->sctp_saddrs[i].sctp_ipif_list); 14967c478bd9Sstevel@tonic-gate for (l = 0; l < sctp->sctp_saddrs[i].ipif_count; l++) { 14977c478bd9Sstevel@tonic-gate sctp_ipif_t *ipif = obj->saddr_ipifp; 14987c478bd9Sstevel@tonic-gate in6_addr_t addr = ipif->sctp_ipif_saddr; 14997c478bd9Sstevel@tonic-gate 15007c478bd9Sstevel@tonic-gate scanned++; 15017c478bd9Sstevel@tonic-gate if ((ipif->sctp_ipif_state == SCTP_IPIFS_CONDEMNED) || 1502f551bb10Svi SCTP_DONT_SRC(obj) || 15031d8c4025Svi (SCTP_IS_IPIF_LOOPBACK(ipif) && skip_lback)) { 15047c478bd9Sstevel@tonic-gate if (scanned >= sctp->sctp_nsaddrs) 15057c478bd9Sstevel@tonic-gate goto done; 15067c478bd9Sstevel@tonic-gate obj = list_next(&sctp->sctp_saddrs[i]. 15077c478bd9Sstevel@tonic-gate sctp_ipif_list, obj); 15087c478bd9Sstevel@tonic-gate continue; 15097c478bd9Sstevel@tonic-gate } 15107c478bd9Sstevel@tonic-gate switch (family) { 15117c478bd9Sstevel@tonic-gate case AF_INET: 15127c478bd9Sstevel@tonic-gate sin4 = (struct sockaddr_in *)myaddrs + added; 15137c478bd9Sstevel@tonic-gate sin4->sin_family = AF_INET; 15147c478bd9Sstevel@tonic-gate sin4->sin_port = sctp->sctp_lport; 15157c478bd9Sstevel@tonic-gate IN6_V4MAPPED_TO_INADDR(&addr, &sin4->sin_addr); 15167c478bd9Sstevel@tonic-gate break; 15177c478bd9Sstevel@tonic-gate 15187c478bd9Sstevel@tonic-gate case AF_INET6: 15197c478bd9Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)myaddrs + added; 15207c478bd9Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 15217c478bd9Sstevel@tonic-gate sin6->sin6_port = sctp->sctp_lport; 15227c478bd9Sstevel@tonic-gate sin6->sin6_addr = addr; 15237c478bd9Sstevel@tonic-gate break; 15247c478bd9Sstevel@tonic-gate } 15257c478bd9Sstevel@tonic-gate added++; 15267c478bd9Sstevel@tonic-gate if (added >= max || scanned >= sctp->sctp_nsaddrs) 15277c478bd9Sstevel@tonic-gate goto done; 15287c478bd9Sstevel@tonic-gate obj = list_next(&sctp->sctp_saddrs[i].sctp_ipif_list, 15297c478bd9Sstevel@tonic-gate obj); 15307c478bd9Sstevel@tonic-gate } 15317c478bd9Sstevel@tonic-gate } 15327c478bd9Sstevel@tonic-gate done: 15337c478bd9Sstevel@tonic-gate *addrcnt = added; 15347c478bd9Sstevel@tonic-gate return (0); 15357c478bd9Sstevel@tonic-gate } 15367c478bd9Sstevel@tonic-gate 15377c478bd9Sstevel@tonic-gate /* 1538df19b344Svi * Given the supported address family, walk through the source address list 1539df19b344Svi * and return the total length of the available addresses. If 'p' is not 1540df19b344Svi * null, construct the parameter list for the addresses in 'p'. 1541f551bb10Svi * 'modify' will only be set when we want the source address list to 1542f551bb10Svi * be modified. The source address list will be modified only when 1543f551bb10Svi * generating an INIT chunk. For generating an INIT-ACK 'modify' will 1544f551bb10Svi * be false since the 'sctp' will be that of the listener. 15457c478bd9Sstevel@tonic-gate */ 15467c478bd9Sstevel@tonic-gate size_t 1547f551bb10Svi sctp_saddr_info(sctp_t *sctp, int supp_af, uchar_t *p, boolean_t modify) 15487c478bd9Sstevel@tonic-gate { 15497c478bd9Sstevel@tonic-gate int i; 15507c478bd9Sstevel@tonic-gate int l; 15517c478bd9Sstevel@tonic-gate sctp_saddr_ipif_t *obj; 1552df19b344Svi size_t paramlen = 0; 15537c478bd9Sstevel@tonic-gate sctp_parm_hdr_t *hdr; 15547c478bd9Sstevel@tonic-gate int scanned = 0; 1555f551bb10Svi int naddr; 1556f551bb10Svi int nsaddr; 15571d8c4025Svi boolean_t del_ll = B_FALSE; 15581d8c4025Svi boolean_t del_lb = B_FALSE; 15591d8c4025Svi 15601d8c4025Svi 15611d8c4025Svi /* 15621d8c4025Svi * On a clustered node don't bother changing anything 15631d8c4025Svi * on the loopback interface. 15641d8c4025Svi */ 15651d8c4025Svi if (modify && !sctp->sctp_loopback && (cl_sctp_check_addrs == NULL)) 15661d8c4025Svi del_lb = B_TRUE; 1567f551bb10Svi 15681d8c4025Svi if (modify && !sctp->sctp_linklocal) 15691d8c4025Svi del_ll = B_TRUE; 15707c478bd9Sstevel@tonic-gate 1571f551bb10Svi nsaddr = sctp->sctp_nsaddrs; 15727c478bd9Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 15737c478bd9Sstevel@tonic-gate if (sctp->sctp_saddrs[i].ipif_count == 0) 15747c478bd9Sstevel@tonic-gate continue; 15757c478bd9Sstevel@tonic-gate obj = list_head(&sctp->sctp_saddrs[i].sctp_ipif_list); 1576f551bb10Svi naddr = sctp->sctp_saddrs[i].ipif_count; 1577f551bb10Svi for (l = 0; l < naddr; l++) { 15787c478bd9Sstevel@tonic-gate in6_addr_t addr; 15797c478bd9Sstevel@tonic-gate sctp_ipif_t *ipif; 15801d8c4025Svi boolean_t ipif_lb; 15811d8c4025Svi boolean_t ipif_ll; 1582f551bb10Svi boolean_t unsupp_af; 15837c478bd9Sstevel@tonic-gate 15847c478bd9Sstevel@tonic-gate ipif = obj->saddr_ipifp; 15857c478bd9Sstevel@tonic-gate scanned++; 1586f551bb10Svi 15871d8c4025Svi ipif_lb = SCTP_IS_IPIF_LOOPBACK(ipif); 15881d8c4025Svi ipif_ll = SCTP_IS_IPIF_LINKLOCAL(ipif); 1589f551bb10Svi unsupp_af = SCTP_UNSUPP_AF(ipif, supp_af); 1590f551bb10Svi /* 1591f551bb10Svi * We need to either delete or skip loopback/linklocal 15921d8c4025Svi * or unsupported addresses, if required. 1593f551bb10Svi */ 15941d8c4025Svi if ((ipif_ll && del_ll) || (ipif_lb && del_lb) || 15951d8c4025Svi (unsupp_af && modify)) { 1596f551bb10Svi if (sctp->sctp_bound_to_all == 1) 1597f551bb10Svi sctp->sctp_bound_to_all = 0; 1598f551bb10Svi if (scanned < nsaddr) { 1599f551bb10Svi obj = list_next(&sctp->sctp_saddrs[i]. 1600f551bb10Svi sctp_ipif_list, obj); 1601f551bb10Svi sctp_ipif_hash_remove(sctp, ipif); 1602f551bb10Svi continue; 1603f551bb10Svi } 1604f551bb10Svi sctp_ipif_hash_remove(sctp, ipif); 1605f551bb10Svi goto next_addr; 16061d8c4025Svi } else if (ipif_ll || unsupp_af || 16071d8c4025Svi (ipif_lb && (cl_sctp_check_addrs == NULL))) { 1608df19b344Svi goto next_addr; 16097c478bd9Sstevel@tonic-gate } 1610f551bb10Svi 1611f551bb10Svi if (!SCTP_IPIF_USABLE(ipif->sctp_ipif_state)) 1612f551bb10Svi goto next_addr; 1613df19b344Svi if (p != NULL) 1614df19b344Svi hdr = (sctp_parm_hdr_t *)(p + paramlen); 16157c478bd9Sstevel@tonic-gate addr = ipif->sctp_ipif_saddr; 1616f551bb10Svi if (!ipif->sctp_ipif_isv6) { 16177c478bd9Sstevel@tonic-gate struct in_addr *v4; 16187c478bd9Sstevel@tonic-gate 1619df19b344Svi if (p != NULL) { 1620df19b344Svi hdr->sph_type = htons(PARM_ADDR4); 1621df19b344Svi hdr->sph_len = htons(PARM_ADDR4_LEN); 1622df19b344Svi v4 = (struct in_addr *)(hdr + 1); 1623df19b344Svi IN6_V4MAPPED_TO_INADDR(&addr, v4); 1624df19b344Svi } 1625df19b344Svi paramlen += PARM_ADDR4_LEN; 1626f551bb10Svi } else { 1627df19b344Svi if (p != NULL) { 1628df19b344Svi hdr->sph_type = htons(PARM_ADDR6); 1629df19b344Svi hdr->sph_len = htons(PARM_ADDR6_LEN); 1630df19b344Svi bcopy(&addr, hdr + 1, sizeof (addr)); 1631df19b344Svi } 1632df19b344Svi paramlen += PARM_ADDR6_LEN; 16337c478bd9Sstevel@tonic-gate } 1634df19b344Svi next_addr: 1635f551bb10Svi if (scanned >= nsaddr) 1636df19b344Svi return (paramlen); 16377c478bd9Sstevel@tonic-gate obj = list_next(&sctp->sctp_saddrs[i].sctp_ipif_list, 16387c478bd9Sstevel@tonic-gate obj); 16397c478bd9Sstevel@tonic-gate } 16407c478bd9Sstevel@tonic-gate } 1641df19b344Svi return (paramlen); 16427c478bd9Sstevel@tonic-gate } 16437c478bd9Sstevel@tonic-gate 16441d8c4025Svi /* 16451d8c4025Svi * This is used on a clustered node to obtain a list of addresses, the list 16461d8c4025Svi * consists of sockaddr_in structs for v4 and sockaddr_in6 for v6. The list 16471d8c4025Svi * is then passed onto the clustering module which sends back the correct 16481d8c4025Svi * list based on the port info. Regardless of the input, i.e INADDR_ANY 16491d8c4025Svi * or specific address(es), we create the list since it could be modified by 16501d8c4025Svi * the clustering module. When given a list of addresses, we simply 16511d8c4025Svi * create the list of sockaddr_in or sockaddr_in6 structs using those 16521d8c4025Svi * addresses. If there is an INADDR_ANY in the input list, or if the 16531d8c4025Svi * input is INADDR_ANY, we create a list of sockaddr_in or sockaddr_in6 16541d8c4025Svi * structs consisting all the addresses in the global interface list 16551d8c4025Svi * except those that are hosted on the loopback interface. We create 16561d8c4025Svi * a list of sockaddr_in[6] structs just so that it can be directly input 16571d8c4025Svi * to sctp_valid_addr_list() once the clustering module has processed it. 16581d8c4025Svi */ 16591d8c4025Svi int 16601d8c4025Svi sctp_get_addrlist(sctp_t *sctp, const void *addrs, uint32_t *addrcnt, 16611d8c4025Svi uchar_t **addrlist, int *uspec, size_t *size) 16621d8c4025Svi { 16631d8c4025Svi int cnt; 16641d8c4025Svi int icnt; 16651d8c4025Svi sctp_ipif_t *sctp_ipif; 16661d8c4025Svi struct sockaddr_in *s4; 16671d8c4025Svi struct sockaddr_in6 *s6; 16681d8c4025Svi uchar_t *p; 16691d8c4025Svi int err = 0; 1670f4b3ec61Sdh sctp_stack_t *sctps = sctp->sctp_sctps; 16711d8c4025Svi 16721d8c4025Svi *addrlist = NULL; 16731d8c4025Svi *size = 0; 16741d8c4025Svi 16751d8c4025Svi /* 16761d8c4025Svi * Create a list of sockaddr_in[6] structs using the input list. 16771d8c4025Svi */ 16781d8c4025Svi if (sctp->sctp_family == AF_INET) { 16791d8c4025Svi *size = sizeof (struct sockaddr_in) * *addrcnt; 16801d8c4025Svi *addrlist = kmem_zalloc(*size, KM_SLEEP); 16811d8c4025Svi p = *addrlist; 16821d8c4025Svi for (cnt = 0; cnt < *addrcnt; cnt++) { 16831d8c4025Svi s4 = (struct sockaddr_in *)addrs + cnt; 16841d8c4025Svi /* 16851d8c4025Svi * We need to create a list of all the available 16861d8c4025Svi * addresses if there is an INADDR_ANY. However, 16871d8c4025Svi * if we are beyond LISTEN, then this is invalid 16881d8c4025Svi * (see sctp_valid_addr_list(). So, we just fail 16891d8c4025Svi * it here rather than wait till it fails in 16901d8c4025Svi * sctp_valid_addr_list(). 16911d8c4025Svi */ 16921d8c4025Svi if (s4->sin_addr.s_addr == INADDR_ANY) { 16931d8c4025Svi kmem_free(*addrlist, *size); 16941d8c4025Svi *addrlist = NULL; 16951d8c4025Svi *size = 0; 16961d8c4025Svi if (sctp->sctp_state > SCTPS_LISTEN) { 16971d8c4025Svi *addrcnt = 0; 16981d8c4025Svi return (EINVAL); 16991d8c4025Svi } 17001d8c4025Svi if (uspec != NULL) 17011d8c4025Svi *uspec = 1; 17021d8c4025Svi goto get_all_addrs; 17031d8c4025Svi } else { 17041d8c4025Svi bcopy(s4, p, sizeof (*s4)); 17051d8c4025Svi p += sizeof (*s4); 17061d8c4025Svi } 17071d8c4025Svi } 17081d8c4025Svi } else { 17091d8c4025Svi *size = sizeof (struct sockaddr_in6) * *addrcnt; 17101d8c4025Svi *addrlist = kmem_zalloc(*size, KM_SLEEP); 17111d8c4025Svi p = *addrlist; 17121d8c4025Svi for (cnt = 0; cnt < *addrcnt; cnt++) { 17131d8c4025Svi s6 = (struct sockaddr_in6 *)addrs + cnt; 17141d8c4025Svi /* 17151d8c4025Svi * Comments for INADDR_ANY, above, apply here too. 17161d8c4025Svi */ 17171d8c4025Svi if (IN6_IS_ADDR_UNSPECIFIED(&s6->sin6_addr)) { 17181d8c4025Svi kmem_free(*addrlist, *size); 17191d8c4025Svi *size = 0; 17201d8c4025Svi *addrlist = NULL; 17211d8c4025Svi if (sctp->sctp_state > SCTPS_LISTEN) { 17221d8c4025Svi *addrcnt = 0; 17231d8c4025Svi return (EINVAL); 17241d8c4025Svi } 17251d8c4025Svi if (uspec != NULL) 17261d8c4025Svi *uspec = 1; 17271d8c4025Svi goto get_all_addrs; 17281d8c4025Svi } else { 17291d8c4025Svi bcopy(addrs, p, sizeof (*s6)); 17301d8c4025Svi p += sizeof (*s6); 17311d8c4025Svi } 17321d8c4025Svi } 17331d8c4025Svi } 17341d8c4025Svi return (err); 17351d8c4025Svi get_all_addrs: 17361d8c4025Svi 17371d8c4025Svi /* 17381d8c4025Svi * Allocate max possible size. We allocate the max. size here because 17391d8c4025Svi * the clustering module could end up adding addresses to the list. 17401d8c4025Svi * We allocate upfront so that the clustering module need to bother 17411d8c4025Svi * re-sizing the list. 17421d8c4025Svi */ 1743f4b3ec61Sdh if (sctp->sctp_family == AF_INET) { 1744f4b3ec61Sdh *size = sizeof (struct sockaddr_in) * 1745f4b3ec61Sdh sctps->sctps_g_ipifs_count; 1746f4b3ec61Sdh } else { 1747f4b3ec61Sdh *size = sizeof (struct sockaddr_in6) * 1748f4b3ec61Sdh sctps->sctps_g_ipifs_count; 1749f4b3ec61Sdh } 17501d8c4025Svi *addrlist = kmem_zalloc(*size, KM_SLEEP); 17511d8c4025Svi *addrcnt = 0; 17521d8c4025Svi p = *addrlist; 1753f4b3ec61Sdh rw_enter(&sctps->sctps_g_ipifs_lock, RW_READER); 17541d8c4025Svi 17551d8c4025Svi /* 17561d8c4025Svi * Walk through the global interface list and add all addresses, 17571d8c4025Svi * except those that are hosted on loopback interfaces. 17581d8c4025Svi */ 17591d8c4025Svi for (cnt = 0; cnt < SCTP_IPIF_HASH; cnt++) { 1760f4b3ec61Sdh if (sctps->sctps_g_ipifs[cnt].ipif_count == 0) 17611d8c4025Svi continue; 1762f4b3ec61Sdh sctp_ipif = list_head( 1763f4b3ec61Sdh &sctps->sctps_g_ipifs[cnt].sctp_ipif_list); 1764f4b3ec61Sdh for (icnt = 0; 1765f4b3ec61Sdh icnt < sctps->sctps_g_ipifs[cnt].ipif_count; 1766f4b3ec61Sdh icnt++) { 17671d8c4025Svi in6_addr_t addr; 17681d8c4025Svi 17691d8c4025Svi rw_enter(&sctp_ipif->sctp_ipif_lock, RW_READER); 17701d8c4025Svi addr = sctp_ipif->sctp_ipif_saddr; 17711d8c4025Svi if (SCTP_IPIF_DISCARD(sctp_ipif->sctp_ipif_flags) || 17721d8c4025Svi !SCTP_IPIF_USABLE(sctp_ipif->sctp_ipif_state) || 17731d8c4025Svi SCTP_IS_IPIF_LOOPBACK(sctp_ipif) || 17741d8c4025Svi SCTP_IS_IPIF_LINKLOCAL(sctp_ipif) || 17755d0bc3edSsommerfe !SCTP_IPIF_ZONE_MATCH(sctp, sctp_ipif) || 17761d8c4025Svi (sctp->sctp_ipversion == IPV4_VERSION && 17771d8c4025Svi sctp_ipif->sctp_ipif_isv6) || 17781d8c4025Svi (sctp->sctp_connp->conn_ipv6_v6only && 17791d8c4025Svi !sctp_ipif->sctp_ipif_isv6)) { 17801d8c4025Svi rw_exit(&sctp_ipif->sctp_ipif_lock); 17811d8c4025Svi sctp_ipif = list_next( 1782f4b3ec61Sdh &sctps->sctps_g_ipifs[cnt].sctp_ipif_list, 17831d8c4025Svi sctp_ipif); 17841d8c4025Svi continue; 17851d8c4025Svi } 17861d8c4025Svi rw_exit(&sctp_ipif->sctp_ipif_lock); 17871d8c4025Svi if (sctp->sctp_family == AF_INET) { 17881d8c4025Svi s4 = (struct sockaddr_in *)p; 17891d8c4025Svi IN6_V4MAPPED_TO_INADDR(&addr, &s4->sin_addr); 17901d8c4025Svi s4->sin_family = AF_INET; 17911d8c4025Svi p += sizeof (*s4); 17921d8c4025Svi } else { 17931d8c4025Svi s6 = (struct sockaddr_in6 *)p; 17941d8c4025Svi s6->sin6_addr = addr; 17951d8c4025Svi s6->sin6_family = AF_INET6; 17961d8c4025Svi s6->sin6_scope_id = 17971d8c4025Svi sctp_ipif->sctp_ipif_ill->sctp_ill_index; 17981d8c4025Svi p += sizeof (*s6); 17991d8c4025Svi } 18001d8c4025Svi (*addrcnt)++; 1801f4b3ec61Sdh sctp_ipif = list_next( 1802f4b3ec61Sdh &sctps->sctps_g_ipifs[cnt].sctp_ipif_list, 18031d8c4025Svi sctp_ipif); 18041d8c4025Svi } 18051d8c4025Svi } 1806f4b3ec61Sdh rw_exit(&sctps->sctps_g_ipifs_lock); 18071d8c4025Svi return (err); 18081d8c4025Svi } 18091d8c4025Svi 18101d8c4025Svi /* 18111d8c4025Svi * Get a list of addresses from the source address list. The caller is 18121d8c4025Svi * responsible for allocating sufficient buffer for this. 18131d8c4025Svi */ 18141d8c4025Svi void 18151d8c4025Svi sctp_get_saddr_list(sctp_t *sctp, uchar_t *p, size_t psize) 18161d8c4025Svi { 18171d8c4025Svi int cnt; 18181d8c4025Svi int icnt; 18191d8c4025Svi sctp_saddr_ipif_t *obj; 18201d8c4025Svi int naddr; 18211d8c4025Svi int scanned = 0; 18221d8c4025Svi 18231d8c4025Svi for (cnt = 0; cnt < SCTP_IPIF_HASH; cnt++) { 18241d8c4025Svi if (sctp->sctp_saddrs[cnt].ipif_count == 0) 18251d8c4025Svi continue; 18261d8c4025Svi obj = list_head(&sctp->sctp_saddrs[cnt].sctp_ipif_list); 18271d8c4025Svi naddr = sctp->sctp_saddrs[cnt].ipif_count; 18281d8c4025Svi for (icnt = 0; icnt < naddr; icnt++) { 18291d8c4025Svi sctp_ipif_t *ipif; 18301d8c4025Svi 18311d8c4025Svi if (psize < sizeof (ipif->sctp_ipif_saddr)) 18321d8c4025Svi return; 18331d8c4025Svi 18341d8c4025Svi scanned++; 18351d8c4025Svi ipif = obj->saddr_ipifp; 18361d8c4025Svi bcopy(&ipif->sctp_ipif_saddr, p, 18371d8c4025Svi sizeof (ipif->sctp_ipif_saddr)); 18381d8c4025Svi p += sizeof (ipif->sctp_ipif_saddr); 18391d8c4025Svi psize -= sizeof (ipif->sctp_ipif_saddr); 18401d8c4025Svi if (scanned >= sctp->sctp_nsaddrs) 18411d8c4025Svi return; 1842f4b3ec61Sdh obj = list_next( 1843f4b3ec61Sdh &sctp->sctp_saddrs[icnt].sctp_ipif_list, 18441d8c4025Svi obj); 18451d8c4025Svi } 18461d8c4025Svi } 18471d8c4025Svi } 18481d8c4025Svi 18491d8c4025Svi /* 18501d8c4025Svi * Get a list of addresses from the remote address list. The caller is 18511d8c4025Svi * responsible for allocating sufficient buffer for this. 18521d8c4025Svi */ 18531d8c4025Svi void 18541d8c4025Svi sctp_get_faddr_list(sctp_t *sctp, uchar_t *p, size_t psize) 18551d8c4025Svi { 18561d8c4025Svi sctp_faddr_t *fp; 18571d8c4025Svi 18581d8c4025Svi for (fp = sctp->sctp_faddrs; fp != NULL; fp = fp->next) { 18591d8c4025Svi if (psize < sizeof (fp->faddr)) 18601d8c4025Svi return; 18611d8c4025Svi bcopy(&fp->faddr, p, sizeof (fp->faddr)); 18621d8c4025Svi p += sizeof (fp->faddr); 18631d8c4025Svi psize -= sizeof (fp->faddr); 18641d8c4025Svi } 18651d8c4025Svi } 18667c478bd9Sstevel@tonic-gate 1867f4b3ec61Sdh static void 1868f4b3ec61Sdh sctp_free_ills(sctp_stack_t *sctps) 1869f4b3ec61Sdh { 1870f4b3ec61Sdh int i; 1871f4b3ec61Sdh int l; 1872f4b3ec61Sdh sctp_ill_t *sctp_ill; 1873f4b3ec61Sdh 1874f4b3ec61Sdh if (sctps->sctps_ills_count == 0) 1875f4b3ec61Sdh return; 1876f4b3ec61Sdh 1877f4b3ec61Sdh for (i = 0; i < SCTP_ILL_HASH; i++) { 1878f4b3ec61Sdh sctp_ill = list_tail(&sctps->sctps_g_ills[i].sctp_ill_list); 1879f4b3ec61Sdh for (l = 0; l < sctps->sctps_g_ills[i].ill_count; l++) { 1880f4b3ec61Sdh ASSERT(sctp_ill->sctp_ill_ipifcnt == 0); 1881f4b3ec61Sdh list_remove(&sctps->sctps_g_ills[i].sctp_ill_list, 1882f4b3ec61Sdh sctp_ill); 1883f4b3ec61Sdh sctps->sctps_ills_count--; 1884f4b3ec61Sdh kmem_free(sctp_ill->sctp_ill_name, 1885f4b3ec61Sdh sctp_ill->sctp_ill_name_length); 1886f4b3ec61Sdh kmem_free(sctp_ill, sizeof (sctp_ill_t)); 1887f4b3ec61Sdh sctp_ill = 1888f4b3ec61Sdh list_tail(&sctps->sctps_g_ills[i].sctp_ill_list); 1889f4b3ec61Sdh } 1890f4b3ec61Sdh sctps->sctps_g_ills[i].ill_count = 0; 1891f4b3ec61Sdh } 1892f4b3ec61Sdh ASSERT(sctps->sctps_ills_count == 0); 1893f4b3ec61Sdh } 1894f4b3ec61Sdh 1895f4b3ec61Sdh static void 1896f4b3ec61Sdh sctp_free_ipifs(sctp_stack_t *sctps) 1897f4b3ec61Sdh { 1898f4b3ec61Sdh int i; 1899f4b3ec61Sdh int l; 1900f4b3ec61Sdh sctp_ipif_t *sctp_ipif; 1901f4b3ec61Sdh sctp_ill_t *sctp_ill; 1902f4b3ec61Sdh 1903f4b3ec61Sdh if (sctps->sctps_g_ipifs_count == 0) 1904f4b3ec61Sdh return; 1905f4b3ec61Sdh 1906f4b3ec61Sdh for (i = 0; i < SCTP_IPIF_HASH; i++) { 1907f4b3ec61Sdh sctp_ipif = list_tail(&sctps->sctps_g_ipifs[i].sctp_ipif_list); 1908f4b3ec61Sdh for (l = 0; l < sctps->sctps_g_ipifs[i].ipif_count; l++) { 1909f4b3ec61Sdh sctp_ill = sctp_ipif->sctp_ipif_ill; 1910f4b3ec61Sdh 1911f4b3ec61Sdh list_remove(&sctps->sctps_g_ipifs[i].sctp_ipif_list, 1912f4b3ec61Sdh sctp_ipif); 1913f4b3ec61Sdh sctps->sctps_g_ipifs_count--; 1914f4b3ec61Sdh (void) atomic_add_32_nv(&sctp_ill->sctp_ill_ipifcnt, 1915f4b3ec61Sdh -1); 1916f4b3ec61Sdh kmem_free(sctp_ipif, sizeof (sctp_ipif_t)); 1917f4b3ec61Sdh sctp_ipif = 1918f4b3ec61Sdh list_tail(&sctps->sctps_g_ipifs[i].sctp_ipif_list); 1919f4b3ec61Sdh } 1920f4b3ec61Sdh sctps->sctps_g_ipifs[i].ipif_count = 0; 1921f4b3ec61Sdh } 1922f4b3ec61Sdh ASSERT(sctps->sctps_g_ipifs_count == 0); 1923f4b3ec61Sdh } 1924f4b3ec61Sdh 1925f4b3ec61Sdh 19267c478bd9Sstevel@tonic-gate /* Initialize the SCTP ILL list and lock */ 19277c478bd9Sstevel@tonic-gate void 1928f4b3ec61Sdh sctp_saddr_init(sctp_stack_t *sctps) 19297c478bd9Sstevel@tonic-gate { 19307c478bd9Sstevel@tonic-gate int i; 19317c478bd9Sstevel@tonic-gate 1932f4b3ec61Sdh sctps->sctps_g_ills = kmem_zalloc(sizeof (sctp_ill_hash_t) * 1933f4b3ec61Sdh SCTP_ILL_HASH, KM_SLEEP); 1934f4b3ec61Sdh sctps->sctps_g_ipifs = kmem_zalloc(sizeof (sctp_ipif_hash_t) * 1935f4b3ec61Sdh SCTP_IPIF_HASH, KM_SLEEP); 1936f4b3ec61Sdh 1937f4b3ec61Sdh rw_init(&sctps->sctps_g_ills_lock, NULL, RW_DEFAULT, NULL); 1938f4b3ec61Sdh rw_init(&sctps->sctps_g_ipifs_lock, NULL, RW_DEFAULT, NULL); 19397c478bd9Sstevel@tonic-gate 19407c478bd9Sstevel@tonic-gate for (i = 0; i < SCTP_ILL_HASH; i++) { 1941f4b3ec61Sdh sctps->sctps_g_ills[i].ill_count = 0; 1942f4b3ec61Sdh list_create(&sctps->sctps_g_ills[i].sctp_ill_list, 1943f4b3ec61Sdh sizeof (sctp_ill_t), 19447c478bd9Sstevel@tonic-gate offsetof(sctp_ill_t, sctp_ills)); 19457c478bd9Sstevel@tonic-gate } 19467c478bd9Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) { 1947f4b3ec61Sdh sctps->sctps_g_ipifs[i].ipif_count = 0; 1948f4b3ec61Sdh list_create(&sctps->sctps_g_ipifs[i].sctp_ipif_list, 19497c478bd9Sstevel@tonic-gate sizeof (sctp_ipif_t), offsetof(sctp_ipif_t, sctp_ipifs)); 19507c478bd9Sstevel@tonic-gate } 19517c478bd9Sstevel@tonic-gate } 19527c478bd9Sstevel@tonic-gate 19537c478bd9Sstevel@tonic-gate void 1954f4b3ec61Sdh sctp_saddr_fini(sctp_stack_t *sctps) 19557c478bd9Sstevel@tonic-gate { 19567c478bd9Sstevel@tonic-gate int i; 19577c478bd9Sstevel@tonic-gate 1958f4b3ec61Sdh sctp_free_ipifs(sctps); 1959f4b3ec61Sdh sctp_free_ills(sctps); 1960f4b3ec61Sdh 19617c478bd9Sstevel@tonic-gate for (i = 0; i < SCTP_ILL_HASH; i++) 1962f4b3ec61Sdh list_destroy(&sctps->sctps_g_ills[i].sctp_ill_list); 19637c478bd9Sstevel@tonic-gate for (i = 0; i < SCTP_IPIF_HASH; i++) 1964f4b3ec61Sdh list_destroy(&sctps->sctps_g_ipifs[i].sctp_ipif_list); 1965f4b3ec61Sdh 1966f4b3ec61Sdh ASSERT(sctps->sctps_ills_count == 0 && sctps->sctps_g_ipifs_count == 0); 1967f4b3ec61Sdh kmem_free(sctps->sctps_g_ills, sizeof (sctp_ill_hash_t) * 1968f4b3ec61Sdh SCTP_ILL_HASH); 1969f4b3ec61Sdh sctps->sctps_g_ills = NULL; 1970f4b3ec61Sdh kmem_free(sctps->sctps_g_ipifs, sizeof (sctp_ipif_hash_t) * 1971f4b3ec61Sdh SCTP_IPIF_HASH); 1972f4b3ec61Sdh sctps->sctps_g_ipifs = NULL; 1973f4b3ec61Sdh rw_destroy(&sctps->sctps_g_ills_lock); 1974f4b3ec61Sdh rw_destroy(&sctps->sctps_g_ipifs_lock); 19757c478bd9Sstevel@tonic-gate } 1976