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 */ 2177c67f2fSkcpoon 227c478bd9Sstevel@tonic-gate /* 23c513743fSGeorge Shepherd * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #ifndef _INET_SCTP_SCTP_IMPL_H 287c478bd9Sstevel@tonic-gate #define _INET_SCTP_SCTP_IMPL_H 297c478bd9Sstevel@tonic-gate 307c478bd9Sstevel@tonic-gate #include <sys/inttypes.h> 317c478bd9Sstevel@tonic-gate #include <sys/taskq.h> 327c478bd9Sstevel@tonic-gate #include <sys/list.h> 337c478bd9Sstevel@tonic-gate #include <sys/strsun.h> 3445916cd2Sjpk #include <sys/zone.h> 357c478bd9Sstevel@tonic-gate #include <netinet/ip6.h> 367c478bd9Sstevel@tonic-gate #include <inet/optcom.h> 377c478bd9Sstevel@tonic-gate #include <netinet/sctp.h> 387c478bd9Sstevel@tonic-gate #include <inet/sctp_itf.h> 39f4b3ec61Sdh #include "sctp_stack.h" 40f4b3ec61Sdh 41f4b3ec61Sdh #ifdef __cplusplus 42f4b3ec61Sdh extern "C" { 43f4b3ec61Sdh #endif 447c478bd9Sstevel@tonic-gate 457c478bd9Sstevel@tonic-gate /* Streams device identifying info and version */ 467c478bd9Sstevel@tonic-gate #define SCTP_DEV_IDINFO "SCTP Streams device 1.0" 477c478bd9Sstevel@tonic-gate 487c478bd9Sstevel@tonic-gate #define SSN_GT(a, b) ((int16_t)((a)-(b)) > 0) 497c478bd9Sstevel@tonic-gate #define SSN_GE(a, b) ((int16_t)((a)-(b)) >= 0) 507c478bd9Sstevel@tonic-gate 517c478bd9Sstevel@tonic-gate /* Default buffer size and flow control wake up threshold. */ 527c478bd9Sstevel@tonic-gate #define SCTP_XMIT_LOWATER 8192 537c478bd9Sstevel@tonic-gate #define SCTP_XMIT_HIWATER 102400 547c478bd9Sstevel@tonic-gate #define SCTP_RECV_LOWATER 8192 557c478bd9Sstevel@tonic-gate #define SCTP_RECV_HIWATER 102400 567c478bd9Sstevel@tonic-gate 577c478bd9Sstevel@tonic-gate /* SCTP Timer control structure */ 587c478bd9Sstevel@tonic-gate typedef struct sctpt_s { 597c478bd9Sstevel@tonic-gate pfv_t sctpt_pfv; /* The routine we are to call */ 607c478bd9Sstevel@tonic-gate struct sctp_s *sctpt_sctp; /* The parameter we are to pass in */ 617c478bd9Sstevel@tonic-gate struct sctp_faddr_s *sctpt_faddr; 627c478bd9Sstevel@tonic-gate } sctpt_t; 637c478bd9Sstevel@tonic-gate 647c478bd9Sstevel@tonic-gate /* 657c478bd9Sstevel@tonic-gate * Maximum number of duplicate TSNs we can report. This is currently 667c478bd9Sstevel@tonic-gate * static, and governs the size of the mblk used to hold the duplicate 677c478bd9Sstevel@tonic-gate * reports. The use of duplcate TSN reports is currently experimental, 687c478bd9Sstevel@tonic-gate * so for now a static limit should suffice. 697c478bd9Sstevel@tonic-gate */ 707c478bd9Sstevel@tonic-gate #define SCTP_DUP_MBLK_SZ 64 717c478bd9Sstevel@tonic-gate 727c478bd9Sstevel@tonic-gate #define SCTP_IS_ADDR_UNSPEC(isv4, addr) \ 737c478bd9Sstevel@tonic-gate ((isv4) ? IN6_IS_ADDR_V4MAPPED_ANY(&(addr)) : \ 747c478bd9Sstevel@tonic-gate IN6_IS_ADDR_UNSPECIFIED(&(addr))) 757c478bd9Sstevel@tonic-gate 767c478bd9Sstevel@tonic-gate /* 777c478bd9Sstevel@tonic-gate * SCTP parameters 787c478bd9Sstevel@tonic-gate */ 797c478bd9Sstevel@tonic-gate /* Named Dispatch Parameter Management Structure */ 807c478bd9Sstevel@tonic-gate typedef struct sctpparam_s { 817c478bd9Sstevel@tonic-gate uint32_t sctp_param_min; 827c478bd9Sstevel@tonic-gate uint32_t sctp_param_max; 837c478bd9Sstevel@tonic-gate uint32_t sctp_param_val; 847c478bd9Sstevel@tonic-gate char *sctp_param_name; 857c478bd9Sstevel@tonic-gate } sctpparam_t; 867c478bd9Sstevel@tonic-gate 87f4b3ec61Sdh #define sctps_max_init_retr sctps_params[0].sctp_param_val 88f4b3ec61Sdh #define sctps_max_init_retr_high sctps_params[0].sctp_param_max 89f4b3ec61Sdh #define sctps_max_init_retr_low sctps_params[0].sctp_param_min 90f4b3ec61Sdh #define sctps_pa_max_retr sctps_params[1].sctp_param_val 91f4b3ec61Sdh #define sctps_pa_max_retr_high sctps_params[1].sctp_param_max 92f4b3ec61Sdh #define sctps_pa_max_retr_low sctps_params[1].sctp_param_min 93f4b3ec61Sdh #define sctps_pp_max_retr sctps_params[2].sctp_param_val 94f4b3ec61Sdh #define sctps_pp_max_retr_high sctps_params[2].sctp_param_max 95f4b3ec61Sdh #define sctps_pp_max_retr_low sctps_params[2].sctp_param_min 96f4b3ec61Sdh #define sctps_cwnd_max_ sctps_params[3].sctp_param_val 97f4b3ec61Sdh #define __sctps_not_used1 sctps_params[4].sctp_param_val 98f4b3ec61Sdh #define sctps_smallest_nonpriv_port sctps_params[5].sctp_param_val 99f4b3ec61Sdh #define sctps_ipv4_ttl sctps_params[6].sctp_param_val 100f4b3ec61Sdh #define sctps_heartbeat_interval sctps_params[7].sctp_param_val 101f4b3ec61Sdh #define sctps_heartbeat_interval_high sctps_params[7].sctp_param_max 102f4b3ec61Sdh #define sctps_heartbeat_interval_low sctps_params[7].sctp_param_min 103f4b3ec61Sdh #define sctps_initial_mtu sctps_params[8].sctp_param_val 104f4b3ec61Sdh #define sctps_mtu_probe_interval sctps_params[9].sctp_param_val 105f4b3ec61Sdh #define sctps_new_secret_interval sctps_params[10].sctp_param_val 106f4b3ec61Sdh #define sctps_deferred_ack_interval sctps_params[11].sctp_param_val 107f4b3ec61Sdh #define sctps_snd_lowat_fraction sctps_params[12].sctp_param_val 108f4b3ec61Sdh #define sctps_ignore_path_mtu sctps_params[13].sctp_param_val 109f4b3ec61Sdh #define sctps_initial_ssthresh sctps_params[14].sctp_param_val 110f4b3ec61Sdh #define sctps_smallest_anon_port sctps_params[15].sctp_param_val 111f4b3ec61Sdh #define sctps_largest_anon_port sctps_params[16].sctp_param_val 112f4b3ec61Sdh #define sctps_xmit_hiwat sctps_params[17].sctp_param_val 113f4b3ec61Sdh #define sctps_xmit_lowat sctps_params[18].sctp_param_val 114f4b3ec61Sdh #define sctps_recv_hiwat sctps_params[19].sctp_param_val 115f4b3ec61Sdh #define sctps_max_buf sctps_params[20].sctp_param_val 116f4b3ec61Sdh #define sctps_rtt_updates sctps_params[21].sctp_param_val 117f4b3ec61Sdh #define sctps_ipv6_hoplimit sctps_params[22].sctp_param_val 118f4b3ec61Sdh #define sctps_rto_ming sctps_params[23].sctp_param_val 119f4b3ec61Sdh #define sctps_rto_ming_high sctps_params[23].sctp_param_max 120f4b3ec61Sdh #define sctps_rto_ming_low sctps_params[23].sctp_param_min 121f4b3ec61Sdh #define sctps_rto_maxg sctps_params[24].sctp_param_val 122f4b3ec61Sdh #define sctps_rto_maxg_high sctps_params[24].sctp_param_max 123f4b3ec61Sdh #define sctps_rto_maxg_low sctps_params[24].sctp_param_min 124f4b3ec61Sdh #define sctps_rto_initialg sctps_params[25].sctp_param_val 125f4b3ec61Sdh #define sctps_rto_initialg_high sctps_params[25].sctp_param_max 126f4b3ec61Sdh #define sctps_rto_initialg_low sctps_params[25].sctp_param_min 127f4b3ec61Sdh #define sctps_cookie_life sctps_params[26].sctp_param_val 128f4b3ec61Sdh #define sctps_cookie_life_high sctps_params[26].sctp_param_max 129f4b3ec61Sdh #define sctps_cookie_life_low sctps_params[26].sctp_param_min 130f4b3ec61Sdh #define sctps_max_in_streams sctps_params[27].sctp_param_val 131f4b3ec61Sdh #define sctps_max_in_streams_high sctps_params[27].sctp_param_max 132f4b3ec61Sdh #define sctps_max_in_streams_low sctps_params[27].sctp_param_min 133f4b3ec61Sdh #define sctps_initial_out_streams sctps_params[28].sctp_param_val 134f4b3ec61Sdh #define sctps_initial_out_streams_high sctps_params[28].sctp_param_max 135f4b3ec61Sdh #define sctps_initial_out_streams_low sctps_params[28].sctp_param_min 136f4b3ec61Sdh #define sctps_shutack_wait_bound sctps_params[29].sctp_param_val 137f4b3ec61Sdh #define sctps_maxburst sctps_params[30].sctp_param_val 138f4b3ec61Sdh #define sctps_addip_enabled sctps_params[31].sctp_param_val 139f4b3ec61Sdh #define sctps_recv_hiwat_minmss sctps_params[32].sctp_param_val 140f4b3ec61Sdh #define sctps_slow_start_initial sctps_params[33].sctp_param_val 141f4b3ec61Sdh #define sctps_slow_start_after_idle sctps_params[34].sctp_param_val 142f4b3ec61Sdh #define sctps_prsctp_enabled sctps_params[35].sctp_param_val 143f4b3ec61Sdh #define sctps_fast_rxt_thresh sctps_params[36].sctp_param_val 144f4b3ec61Sdh #define sctps_deferred_acks_max sctps_params[37].sctp_param_val 145f4b3ec61Sdh 1467c478bd9Sstevel@tonic-gate /* 1477c478bd9Sstevel@tonic-gate * sctp_wroff_xtra is the extra space in front of SCTP/IP header for link 1487c478bd9Sstevel@tonic-gate * layer header. It has to be a multiple of 4. 1497c478bd9Sstevel@tonic-gate */ 150f4b3ec61Sdh #define sctps_wroff_xtra sctps_wroff_xtra_param->sctp_param_val 1517c478bd9Sstevel@tonic-gate 15277c67f2fSkcpoon /* 15377c67f2fSkcpoon * Retransmission timer start and stop macro for a given faddr. 15477c67f2fSkcpoon */ 15577c67f2fSkcpoon #define SCTP_FADDR_TIMER_RESTART(sctp, fp, intvl) \ 15677c67f2fSkcpoon { \ 15777c67f2fSkcpoon dprint(3, ("faddr_timer_restart: fp=%p %x:%x:%x:%x %d\n", \ 15877c67f2fSkcpoon (void *)(fp), SCTP_PRINTADDR((fp)->faddr), (int)(intvl))); \ 15977c67f2fSkcpoon sctp_timer((sctp), (fp)->timer_mp, (intvl)); \ 16077c67f2fSkcpoon (fp)->timer_running = 1; \ 16177c67f2fSkcpoon } 16277c67f2fSkcpoon 16377c67f2fSkcpoon #define SCTP_FADDR_TIMER_STOP(fp) \ 16477c67f2fSkcpoon ASSERT((fp)->timer_mp != NULL); \ 16577c67f2fSkcpoon if ((fp)->timer_running) { \ 16677c67f2fSkcpoon sctp_timer_stop((fp)->timer_mp); \ 16777c67f2fSkcpoon (fp)->timer_running = 0; \ 16877c67f2fSkcpoon } 16977c67f2fSkcpoon 1709f13099eSGeorge Shepherd /* For per endpoint association statistics */ 1719f13099eSGeorge Shepherd #define SCTP_MAX_RTO(sctp, fp) { \ 1729f13099eSGeorge Shepherd /* \ 1739f13099eSGeorge Shepherd * Record the maximum observed RTO, \ 1749f13099eSGeorge Shepherd * sctp_maxrto is zeroed elsewhere \ 1759f13099eSGeorge Shepherd * at the end of each stats request. \ 1769f13099eSGeorge Shepherd */ \ 1779f13099eSGeorge Shepherd (sctp)->sctp_maxrto = \ 1789f13099eSGeorge Shepherd MAX((sctp)->sctp_maxrto, (fp)->rto); \ 1799f13099eSGeorge Shepherd DTRACE_PROBE2(sctp__maxrto, sctp_t *, \ 1809f13099eSGeorge Shepherd sctp, struct sctp_faddr_s, fp); \ 1819f13099eSGeorge Shepherd } 1829f13099eSGeorge Shepherd 1839f13099eSGeorge Shepherd #define SCTP_CALC_RXT(sctp, fp) \ 1849f13099eSGeorge Shepherd { \ 1859f13099eSGeorge Shepherd if (((fp)->rto <<= 1) > (sctp)->sctp_rto_max) \ 1869f13099eSGeorge Shepherd (fp)->rto = (sctp)->sctp_rto_max; \ 1879f13099eSGeorge Shepherd SCTP_MAX_RTO(sctp, fp); \ 18877c67f2fSkcpoon } 18977c67f2fSkcpoon 19077c67f2fSkcpoon 1917c478bd9Sstevel@tonic-gate #define SCTP_MAX_COMBINED_HEADER_LENGTH (60 + 12) /* Maxed out ip + sctp */ 1927c478bd9Sstevel@tonic-gate #define SCTP_MAX_IP_OPTIONS_LENGTH (60 - IP_SIMPLE_HDR_LENGTH) 1937c478bd9Sstevel@tonic-gate #define SCTP_MAX_HDR_LENGTH 60 1947c478bd9Sstevel@tonic-gate 1957c478bd9Sstevel@tonic-gate #define SCTP_SECRET_LEN 16 1967c478bd9Sstevel@tonic-gate 1977c478bd9Sstevel@tonic-gate #define SCTP_REFHOLD(sctp) { \ 1987c478bd9Sstevel@tonic-gate mutex_enter(&(sctp)->sctp_reflock); \ 1997c478bd9Sstevel@tonic-gate (sctp)->sctp_refcnt++; \ 2007c478bd9Sstevel@tonic-gate ASSERT((sctp)->sctp_refcnt != 0); \ 2017c478bd9Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_reflock); \ 2027c478bd9Sstevel@tonic-gate } 2037c478bd9Sstevel@tonic-gate 2047c478bd9Sstevel@tonic-gate #define SCTP_REFRELE(sctp) { \ 2057c478bd9Sstevel@tonic-gate mutex_enter(&(sctp)->sctp_reflock); \ 2067c478bd9Sstevel@tonic-gate ASSERT((sctp)->sctp_refcnt != 0); \ 2077c478bd9Sstevel@tonic-gate if (--(sctp)->sctp_refcnt == 0) { \ 2087c478bd9Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_reflock); \ 2097c478bd9Sstevel@tonic-gate CONN_DEC_REF((sctp)->sctp_connp); \ 2107c478bd9Sstevel@tonic-gate } else { \ 2117c478bd9Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_reflock); \ 2127c478bd9Sstevel@tonic-gate } \ 2137c478bd9Sstevel@tonic-gate } 2147c478bd9Sstevel@tonic-gate 215f4b3ec61Sdh #define SCTP_G_Q_REFHOLD(sctps) { \ 216f4b3ec61Sdh atomic_add_32(&(sctps)->sctps_g_q_ref, 1); \ 217f4b3ec61Sdh ASSERT((sctps)->sctps_g_q_ref != 0); \ 218f4b3ec61Sdh DTRACE_PROBE1(sctp__g__q__refhold, sctp_stack_t, sctps); \ 219f4b3ec61Sdh } 220f4b3ec61Sdh 221f4b3ec61Sdh /* 222f4b3ec61Sdh * Decrement the reference count on sctp_g_q 223f4b3ec61Sdh * In architectures e.g sun4u, where atomic_add_32_nv is just 224f4b3ec61Sdh * a cas, we need to maintain the right memory barrier semantics 225f4b3ec61Sdh * as that of mutex_exit i.e all the loads and stores should complete 226f4b3ec61Sdh * before the cas is executed. membar_exit() does that here. 227f4b3ec61Sdh */ 228f4b3ec61Sdh #define SCTP_G_Q_REFRELE(sctps) { \ 229f4b3ec61Sdh ASSERT((sctps)->sctps_g_q_ref != 0); \ 230f4b3ec61Sdh membar_exit(); \ 231f4b3ec61Sdh DTRACE_PROBE1(sctp__g__q__refrele, sctp_stack_t, sctps); \ 232f4b3ec61Sdh if (atomic_add_32_nv(&(sctps)->sctps_g_q_ref, -1) == 0) \ 233f4b3ec61Sdh sctp_g_q_inactive(sctps); \ 234f4b3ec61Sdh } 235f4b3ec61Sdh 2367c478bd9Sstevel@tonic-gate #define SCTP_PRINTADDR(a) (a).s6_addr32[0], (a).s6_addr32[1],\ 2377c478bd9Sstevel@tonic-gate (a).s6_addr32[2], (a).s6_addr32[3] 2387c478bd9Sstevel@tonic-gate 2397c478bd9Sstevel@tonic-gate #define CONN2SCTP(conn) ((sctp_t *)(&((conn_t *)conn)[1])) 2407c478bd9Sstevel@tonic-gate 2417c478bd9Sstevel@tonic-gate /* 2427c478bd9Sstevel@tonic-gate * Outbound data, flags and macros for per-message, per-chunk info 2437c478bd9Sstevel@tonic-gate */ 2447c478bd9Sstevel@tonic-gate typedef struct { 2457c478bd9Sstevel@tonic-gate int64_t smh_ttl; /* Time to Live */ 2467c478bd9Sstevel@tonic-gate int64_t smh_tob; /* Time of Birth */ 2477c478bd9Sstevel@tonic-gate uint32_t smh_context; 2487c478bd9Sstevel@tonic-gate uint16_t smh_sid; 2497c478bd9Sstevel@tonic-gate uint16_t smh_ssn; 2507c478bd9Sstevel@tonic-gate uint32_t smh_ppid; 2517c478bd9Sstevel@tonic-gate uint16_t smh_flags; 2527c478bd9Sstevel@tonic-gate uint32_t smh_msglen; 2537c478bd9Sstevel@tonic-gate } sctp_msg_hdr_t; 2547c478bd9Sstevel@tonic-gate 2557c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_FLAG_SENT 0x01 2567c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_FLAG_REXMIT 0x02 2577c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_FLAG_ACKED 0x04 2587c478bd9Sstevel@tonic-gate #define SCTP_MSG_FLAG_CHUNKED 0x08 2597c478bd9Sstevel@tonic-gate #define SCTP_MSG_FLAG_ABANDONED 0x10 2607c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_FLAG_ABANDONED 0x20 2617c478bd9Sstevel@tonic-gate 2627c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_CLEAR_FLAGS(mp) ((mp)->b_flag = 0) 2637c478bd9Sstevel@tonic-gate /* 2647c478bd9Sstevel@tonic-gate * If we are transmitting the chunk for the first time we assign the TSN and 2657c478bd9Sstevel@tonic-gate * SSN here. The reason we assign the SSN here (as opposed to doing it in 2667c478bd9Sstevel@tonic-gate * sctp_chunkify()) is that the chunk may expire, if PRSCTP is enabled, before 2677c478bd9Sstevel@tonic-gate * we get a chance to send it out. If we assign the SSN in sctp_chunkify() 2687c478bd9Sstevel@tonic-gate * and this happens, then we need to send a Forward TSN to the peer, which 2697c478bd9Sstevel@tonic-gate * will be expecting this SSN, assuming ordered. If we assign it here we 2707c478bd9Sstevel@tonic-gate * can just take out the chunk from the transmit list without having to 2717c478bd9Sstevel@tonic-gate * send a Forward TSN chunk. While assigning the SSN we use (meta)->b_cont 2727c478bd9Sstevel@tonic-gate * to determine if it needs a new SSN (i.e. the next SSN for the stream), 2737c478bd9Sstevel@tonic-gate * since (meta)->b_cont signifies the first chunk of a message (if the message 2747c478bd9Sstevel@tonic-gate * is unordered, then the SSN is 0). 2757c478bd9Sstevel@tonic-gate * 2767c478bd9Sstevel@tonic-gate */ 2777c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_SENT(sctp, mp, sdc, fp, chunkdata, meta) { \ 2787c478bd9Sstevel@tonic-gate if (!SCTP_CHUNK_ISSENT(mp)) { \ 2797c478bd9Sstevel@tonic-gate sctp_msg_hdr_t *mhdr = (sctp_msg_hdr_t *)(meta)->b_rptr; \ 2807c478bd9Sstevel@tonic-gate ASSERT(!SCTP_CHUNK_ABANDONED(mp)); \ 2817c478bd9Sstevel@tonic-gate (mp)->b_flag = SCTP_CHUNK_FLAG_SENT; \ 2827c478bd9Sstevel@tonic-gate (sdc)->sdh_tsn = htonl((sctp)->sctp_ltsn++); \ 2837c478bd9Sstevel@tonic-gate if ((mhdr)->smh_flags & MSG_UNORDERED) { \ 2847c478bd9Sstevel@tonic-gate (sdc)->sdh_ssn = 0; \ 2857c478bd9Sstevel@tonic-gate SCTP_DATA_SET_UBIT(sdc); \ 2867c478bd9Sstevel@tonic-gate BUMP_LOCAL((sctp)->sctp_oudchunks); \ 2877c478bd9Sstevel@tonic-gate } else { \ 2887c478bd9Sstevel@tonic-gate BUMP_LOCAL((sctp)->sctp_odchunks); \ 2897c478bd9Sstevel@tonic-gate if ((mp) == (meta)->b_cont) { \ 2907c478bd9Sstevel@tonic-gate mhdr->smh_ssn = htons( \ 2917c478bd9Sstevel@tonic-gate (sctp)->sctp_ostrcntrs[mhdr->smh_sid]++); \ 2927c478bd9Sstevel@tonic-gate } \ 2937c478bd9Sstevel@tonic-gate (sdc)->sdh_ssn = mhdr->smh_ssn; \ 2947c478bd9Sstevel@tonic-gate } \ 2957c478bd9Sstevel@tonic-gate (sctp)->sctp_unacked += (chunkdata); \ 2967c478bd9Sstevel@tonic-gate (sctp)->sctp_unsent -= (chunkdata); \ 2977c478bd9Sstevel@tonic-gate (sctp)->sctp_frwnd -= (chunkdata); \ 2987c478bd9Sstevel@tonic-gate } else { \ 2997c478bd9Sstevel@tonic-gate if (SCTP_CHUNK_ISACKED(mp)) { \ 3007c478bd9Sstevel@tonic-gate (sctp)->sctp_unacked += (chunkdata); \ 3017c478bd9Sstevel@tonic-gate } else { \ 3027c478bd9Sstevel@tonic-gate ASSERT(SCTP_CHUNK_DEST(mp)->suna >= ((chunkdata) + \ 3037c478bd9Sstevel@tonic-gate sizeof (*sdc))); \ 3047c478bd9Sstevel@tonic-gate SCTP_CHUNK_DEST(mp)->suna -= ((chunkdata) + \ 3057c478bd9Sstevel@tonic-gate sizeof (*sdc)); \ 3067c478bd9Sstevel@tonic-gate } \ 3077c478bd9Sstevel@tonic-gate (mp)->b_flag &= ~(SCTP_CHUNK_FLAG_REXMIT | \ 3087c478bd9Sstevel@tonic-gate SCTP_CHUNK_FLAG_ACKED); \ 3097c478bd9Sstevel@tonic-gate SCTP_CHUNK_SET_SACKCNT(mp, 0); \ 3107c478bd9Sstevel@tonic-gate BUMP_LOCAL(sctp->sctp_rxtchunks); \ 3117c478bd9Sstevel@tonic-gate BUMP_LOCAL((sctp)->sctp_T3expire); \ 3127c478bd9Sstevel@tonic-gate BUMP_LOCAL((fp)->T3expire); \ 3137c478bd9Sstevel@tonic-gate } \ 3147c478bd9Sstevel@tonic-gate SCTP_SET_CHUNK_DEST(mp, fp); \ 3157c478bd9Sstevel@tonic-gate (fp)->suna += ((chunkdata) + sizeof (*sdc)); \ 3167c478bd9Sstevel@tonic-gate } 3177c478bd9Sstevel@tonic-gate 3187c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_ISSENT(mp) ((mp)->b_flag & SCTP_CHUNK_FLAG_SENT) 3197c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_CANSEND(mp) \ 3207c478bd9Sstevel@tonic-gate (!(SCTP_CHUNK_ABANDONED(mp)) && \ 3217c478bd9Sstevel@tonic-gate (((mp)->b_flag & (SCTP_CHUNK_FLAG_REXMIT|SCTP_CHUNK_FLAG_SENT)) != \ 3227c478bd9Sstevel@tonic-gate SCTP_CHUNK_FLAG_SENT)) 3237c478bd9Sstevel@tonic-gate 3247c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_DEST(mp) ((sctp_faddr_t *)(mp)->b_queue) 3257c478bd9Sstevel@tonic-gate #define SCTP_SET_CHUNK_DEST(mp, fp) ((mp)->b_queue = (queue_t *)fp) 3267c478bd9Sstevel@tonic-gate 3277c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_REXMIT(mp) ((mp)->b_flag |= SCTP_CHUNK_FLAG_REXMIT) 3287c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_CLEAR_REXMIT(mp) ((mp)->b_flag &= ~SCTP_CHUNK_FLAG_REXMIT) 3297c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_WANT_REXMIT(mp) ((mp)->b_flag & SCTP_CHUNK_FLAG_REXMIT) 3307c478bd9Sstevel@tonic-gate 3317c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_ACKED(mp) \ 3327c478bd9Sstevel@tonic-gate ((mp)->b_flag = (SCTP_CHUNK_FLAG_SENT|SCTP_CHUNK_FLAG_ACKED)) 3337c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_ISACKED(mp) ((mp)->b_flag & SCTP_CHUNK_FLAG_ACKED) 3347c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_CLEAR_ACKED(mp) ((mp)->b_flag &= ~SCTP_CHUNK_FLAG_ACKED) 3357c478bd9Sstevel@tonic-gate 3367c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_SACKCNT(mp) ((intptr_t)((mp)->b_prev)) 3377c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_SET_SACKCNT(mp, val) ((mp)->b_prev = \ 3387c478bd9Sstevel@tonic-gate (mblk_t *)(uintptr_t)(val)) 3397c478bd9Sstevel@tonic-gate 3407c478bd9Sstevel@tonic-gate #define SCTP_MSG_SET_CHUNKED(mp) ((mp)->b_flag |= SCTP_MSG_FLAG_CHUNKED) 3417c478bd9Sstevel@tonic-gate #define SCTP_MSG_CLEAR_CHUNKED(mp)((mp)->b_flag &= ~SCTP_MSG_FLAG_CHUNKED) 3427c478bd9Sstevel@tonic-gate #define SCTP_IS_MSG_CHUNKED(mp) ((mp)->b_flag & SCTP_MSG_FLAG_CHUNKED) 3437c478bd9Sstevel@tonic-gate 3447c478bd9Sstevel@tonic-gate /* For PR-SCTP */ 3457c478bd9Sstevel@tonic-gate #define SCTP_ABANDON_CHUNK(mp) ((mp)->b_flag |= SCTP_CHUNK_FLAG_ABANDONED) 3467c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_ABANDONED(mp) \ 3477c478bd9Sstevel@tonic-gate ((mp)->b_flag & SCTP_CHUNK_FLAG_ABANDONED) 3487c478bd9Sstevel@tonic-gate 3497c478bd9Sstevel@tonic-gate #define SCTP_MSG_SET_ABANDONED(mp) \ 3507c478bd9Sstevel@tonic-gate ((mp)->b_flag |= SCTP_MSG_FLAG_ABANDONED) 3517c478bd9Sstevel@tonic-gate #define SCTP_MSG_CLEAR_ABANDONED(mp)((mp)->b_flag &= ~SCTP_MSG_FLAG_ABANDONED) 3527c478bd9Sstevel@tonic-gate #define SCTP_IS_MSG_ABANDONED(mp) ((mp)->b_flag & SCTP_MSG_FLAG_ABANDONED) 3537c478bd9Sstevel@tonic-gate 3547c478bd9Sstevel@tonic-gate /* 3557c478bd9Sstevel@tonic-gate * Check if a message has expired. A message is expired if 3567c478bd9Sstevel@tonic-gate * 1. It has a non-zero time to live value and has not been sent before 3577c478bd9Sstevel@tonic-gate * that time expires. 3587c478bd9Sstevel@tonic-gate * 2. It is sent using PRSCTP and it has not been SACK'ed before 3597c478bd9Sstevel@tonic-gate * its lifetime expires. 3607c478bd9Sstevel@tonic-gate */ 3617c478bd9Sstevel@tonic-gate #define SCTP_MSG_TO_BE_ABANDONED(meta, mhdr, sctp) \ 3627c478bd9Sstevel@tonic-gate (((!SCTP_CHUNK_ISSENT((meta)->b_cont) && (mhdr)->smh_ttl > 0) || \ 3637c478bd9Sstevel@tonic-gate ((sctp)->sctp_prsctp_aware && ((mhdr)->smh_flags & MSG_PR_SCTP))) && \ 3647c478bd9Sstevel@tonic-gate ((lbolt64 - (mhdr)->smh_tob) > (mhdr)->smh_ttl)) 3657c478bd9Sstevel@tonic-gate 3667c478bd9Sstevel@tonic-gate /* SCTP association hash function. */ 367f4b3ec61Sdh #define SCTP_CONN_HASH(sctps, ports) \ 368f4b3ec61Sdh ((((ports) ^ ((ports) >> 16)) * 31) & \ 369f4b3ec61Sdh ((sctps)->sctps_conn_hash_size - 1)) 3707c478bd9Sstevel@tonic-gate 3717c478bd9Sstevel@tonic-gate /* 3727c478bd9Sstevel@tonic-gate * Bind hash array size and hash function. The size must be a power 3737c478bd9Sstevel@tonic-gate * of 2 and lport must be in host byte order. 3747c478bd9Sstevel@tonic-gate */ 3757c478bd9Sstevel@tonic-gate #define SCTP_BIND_FANOUT_SIZE 2048 3767c478bd9Sstevel@tonic-gate #define SCTP_BIND_HASH(lport) (((lport) * 31) & (SCTP_BIND_FANOUT_SIZE - 1)) 3777c478bd9Sstevel@tonic-gate 3787c478bd9Sstevel@tonic-gate /* options that SCTP negotiates during association establishment */ 3797c478bd9Sstevel@tonic-gate #define SCTP_PRSCTP_OPTION 0x01 3807c478bd9Sstevel@tonic-gate 3817c478bd9Sstevel@tonic-gate /* 3827c478bd9Sstevel@tonic-gate * Listener hash array size and hash function. The size must be a power 3837c478bd9Sstevel@tonic-gate * of 2 and lport must be in host byte order. 3847c478bd9Sstevel@tonic-gate */ 3857c478bd9Sstevel@tonic-gate #define SCTP_LISTEN_FANOUT_SIZE 512 3867c478bd9Sstevel@tonic-gate #define SCTP_LISTEN_HASH(lport) (((lport) * 31) & (SCTP_LISTEN_FANOUT_SIZE - 1)) 3877c478bd9Sstevel@tonic-gate 3887c478bd9Sstevel@tonic-gate typedef struct sctp_tf_s { 3897c478bd9Sstevel@tonic-gate struct sctp_s *tf_sctp; 3907c478bd9Sstevel@tonic-gate kmutex_t tf_lock; 3917c478bd9Sstevel@tonic-gate } sctp_tf_t; 3927c478bd9Sstevel@tonic-gate 3937c478bd9Sstevel@tonic-gate /* Round up the value to the nearest mss. */ 3947c478bd9Sstevel@tonic-gate #define MSS_ROUNDUP(value, mss) ((((value) - 1) / (mss) + 1) * (mss)) 3957c478bd9Sstevel@tonic-gate 3967c478bd9Sstevel@tonic-gate extern sin_t sctp_sin_null; /* Zero address for quick clears */ 3977c478bd9Sstevel@tonic-gate extern sin6_t sctp_sin6_null; /* Zero address for quick clears */ 3987c478bd9Sstevel@tonic-gate 3997c478bd9Sstevel@tonic-gate #define SCTP_IS_DETACHED(sctp) ((sctp)->sctp_detached) 4007c478bd9Sstevel@tonic-gate 4017c478bd9Sstevel@tonic-gate /* 4027c478bd9Sstevel@tonic-gate * Object to represent database of options to search passed to 4037c478bd9Sstevel@tonic-gate * {sock,tpi}optcom_req() interface routine to take care of option 4047c478bd9Sstevel@tonic-gate * management and associated methods. 4057c478bd9Sstevel@tonic-gate * XXX These and other externs should ideally move to a SCTP header 4067c478bd9Sstevel@tonic-gate */ 4077c478bd9Sstevel@tonic-gate extern optdb_obj_t sctp_opt_obj; 4087c478bd9Sstevel@tonic-gate extern uint_t sctp_max_optbuf_len; 4097c478bd9Sstevel@tonic-gate 4107c478bd9Sstevel@tonic-gate /* Data structure used to track received TSNs */ 4117c478bd9Sstevel@tonic-gate typedef struct sctp_set_s { 4127c478bd9Sstevel@tonic-gate struct sctp_set_s *next; 4137c478bd9Sstevel@tonic-gate struct sctp_set_s *prev; 4147c478bd9Sstevel@tonic-gate uint32_t begin; 4157c478bd9Sstevel@tonic-gate uint32_t end; 4167c478bd9Sstevel@tonic-gate } sctp_set_t; 4177c478bd9Sstevel@tonic-gate 4187c478bd9Sstevel@tonic-gate /* Data structure used to track TSNs for PR-SCTP */ 4197c478bd9Sstevel@tonic-gate typedef struct sctp_ftsn_set_s { 4207c478bd9Sstevel@tonic-gate struct sctp_ftsn_set_s *next; 4217c478bd9Sstevel@tonic-gate ftsn_entry_t ftsn_entries; 4227c478bd9Sstevel@tonic-gate } sctp_ftsn_set_t; 4237c478bd9Sstevel@tonic-gate 4247c478bd9Sstevel@tonic-gate /* Data structure used to track incoming SCTP streams */ 4257c478bd9Sstevel@tonic-gate typedef struct sctp_instr_s { 4267c478bd9Sstevel@tonic-gate mblk_t *istr_msgs; 4277c478bd9Sstevel@tonic-gate int istr_nmsgs; 4287c478bd9Sstevel@tonic-gate uint16_t nextseq; 4297c478bd9Sstevel@tonic-gate struct sctp_s *sctp; 4307c478bd9Sstevel@tonic-gate mblk_t *istr_reass; 4317c478bd9Sstevel@tonic-gate } sctp_instr_t; 4327c478bd9Sstevel@tonic-gate 4337c478bd9Sstevel@tonic-gate /* Reassembly data structure (per-stream) */ 4347c478bd9Sstevel@tonic-gate typedef struct sctp_reass_s { 4357c478bd9Sstevel@tonic-gate uint16_t ssn; 4367c478bd9Sstevel@tonic-gate uint16_t needed; 4377c478bd9Sstevel@tonic-gate uint16_t got; 4387d546a59Svi uint16_t msglen; /* len of consecutive fragments */ 4397d546a59Svi /* from the begining (B-bit) */ 4407c478bd9Sstevel@tonic-gate mblk_t *tail; 4417d546a59Svi boolean_t hasBchunk; /* If the fragment list begins with */ 4427d546a59Svi /* a B-bit set chunk */ 4437d546a59Svi uint32_t nexttsn; /* TSN of the next fragment we */ 4447d546a59Svi /* are expecting */ 4457c478bd9Sstevel@tonic-gate boolean_t partial_delivered; 4467c478bd9Sstevel@tonic-gate } sctp_reass_t; 4477c478bd9Sstevel@tonic-gate 4487c478bd9Sstevel@tonic-gate /* debugging */ 4497c478bd9Sstevel@tonic-gate #undef dprint 45045916cd2Sjpk #ifdef DEBUG 4517c478bd9Sstevel@tonic-gate extern int sctpdebug; 4527c478bd9Sstevel@tonic-gate #define dprint(level, args) { if (sctpdebug > (level)) printf args; } 45345916cd2Sjpk #else 4547c478bd9Sstevel@tonic-gate #define dprint(level, args) {} 45545916cd2Sjpk #endif 4567c478bd9Sstevel@tonic-gate 4577c478bd9Sstevel@tonic-gate 4587c478bd9Sstevel@tonic-gate /* Peer address tracking */ 4597c478bd9Sstevel@tonic-gate 4607c478bd9Sstevel@tonic-gate /* 4617c478bd9Sstevel@tonic-gate * States for peer addresses 4627c478bd9Sstevel@tonic-gate * 4637c478bd9Sstevel@tonic-gate * SCTP_FADDRS_UNCONFIRMED: we have not communicated with this peer address 4647c478bd9Sstevel@tonic-gate * before, mark it as unconfirmed so that we will not send data to it. 4657c478bd9Sstevel@tonic-gate * All addresses initially are in unconfirmed state and required 4667c478bd9Sstevel@tonic-gate * validation. SCTP sends a heartbeat to each of them and when it gets 4677c478bd9Sstevel@tonic-gate * back a heartbeat ACK, the address will be marked as alive. This 4687c478bd9Sstevel@tonic-gate * validation fixes a security issue with multihoming. If an attacker 4697c478bd9Sstevel@tonic-gate * establishes an association with us and tells us that it has addresses 4707c478bd9Sstevel@tonic-gate * belonging to another host A, this will prevent A from communicating 4717c478bd9Sstevel@tonic-gate * with us. This is fixed by peer address validation. In the above case, 4727c478bd9Sstevel@tonic-gate * A will respond with an abort. 4737c478bd9Sstevel@tonic-gate * 4747c478bd9Sstevel@tonic-gate * SCTP_FADDRS_ALIVE: this peer address is alive and we can communicate with 4757c478bd9Sstevel@tonic-gate * it with no problem. 4767c478bd9Sstevel@tonic-gate * 4777c478bd9Sstevel@tonic-gate * SCTP_FADDRS_DOWN: we have exceeded the retransmission limit to this 4787c478bd9Sstevel@tonic-gate * peer address. Once an address is marked down, we will only send 4797c478bd9Sstevel@tonic-gate * a heartbeat to it every hb_interval in case it becomes alive now. 4807c478bd9Sstevel@tonic-gate * 4817c478bd9Sstevel@tonic-gate * SCTP_FADDRS_UNREACH: there is no suitable source address to send to 4827c478bd9Sstevel@tonic-gate * this peer address. For example, the peer address is v6 but we only 4837c478bd9Sstevel@tonic-gate * have v4 addresses. It is marked unreachable until there is an 4847c478bd9Sstevel@tonic-gate * address configuration change. At that time, mark these addresses 4857c478bd9Sstevel@tonic-gate * as unconfirmed and try again to see if those unreachable addresses 4867c478bd9Sstevel@tonic-gate * are OK as we may have more source addresses. 4877c478bd9Sstevel@tonic-gate */ 4887c478bd9Sstevel@tonic-gate typedef enum { 4897c478bd9Sstevel@tonic-gate SCTP_FADDRS_UNREACH, 4907c478bd9Sstevel@tonic-gate SCTP_FADDRS_DOWN, 4917c478bd9Sstevel@tonic-gate SCTP_FADDRS_ALIVE, 4927c478bd9Sstevel@tonic-gate SCTP_FADDRS_UNCONFIRMED 4937c478bd9Sstevel@tonic-gate } faddr_state_t; 4947c478bd9Sstevel@tonic-gate 4957c478bd9Sstevel@tonic-gate typedef struct sctp_faddr_s { 4967c478bd9Sstevel@tonic-gate struct sctp_faddr_s *next; 4977c478bd9Sstevel@tonic-gate faddr_state_t state; 4987c478bd9Sstevel@tonic-gate 4997c478bd9Sstevel@tonic-gate in6_addr_t faddr; 5007c478bd9Sstevel@tonic-gate in6_addr_t saddr; 5017c478bd9Sstevel@tonic-gate 5027c478bd9Sstevel@tonic-gate int64_t hb_expiry; /* time to retransmit heartbeat */ 5037c478bd9Sstevel@tonic-gate uint32_t hb_interval; /* the heartbeat interval */ 5047c478bd9Sstevel@tonic-gate 5057c478bd9Sstevel@tonic-gate int rto; /* RTO in tick */ 5067c478bd9Sstevel@tonic-gate int srtt; /* Smoothed RTT in tick */ 5077c478bd9Sstevel@tonic-gate int rttvar; /* RTT variance in tick */ 5087c478bd9Sstevel@tonic-gate uint32_t rtt_updates; 5097c478bd9Sstevel@tonic-gate int strikes; 5107c478bd9Sstevel@tonic-gate int max_retr; 5117c478bd9Sstevel@tonic-gate uint32_t sfa_pmss; 5127c478bd9Sstevel@tonic-gate uint32_t cwnd; 5137c478bd9Sstevel@tonic-gate uint32_t ssthresh; 5147c478bd9Sstevel@tonic-gate uint32_t suna; /* sent - unack'ed */ 5157c478bd9Sstevel@tonic-gate uint32_t pba; /* partial bytes acked */ 5167c478bd9Sstevel@tonic-gate uint32_t acked; 5177c478bd9Sstevel@tonic-gate int64_t lastactive; 5187c478bd9Sstevel@tonic-gate mblk_t *timer_mp; /* retransmission timer control */ 5197c478bd9Sstevel@tonic-gate uint32_t 5207c478bd9Sstevel@tonic-gate hb_pending : 1, 5217c478bd9Sstevel@tonic-gate timer_running : 1, 5227c478bd9Sstevel@tonic-gate df : 1, 5237c478bd9Sstevel@tonic-gate pmtu_discovered : 1, 5247c478bd9Sstevel@tonic-gate 5257c478bd9Sstevel@tonic-gate rc_timer_running : 1, 526c31292eeSkcpoon isv4 : 1, 527c31292eeSkcpoon hb_enabled : 1; 5287c478bd9Sstevel@tonic-gate 5297c478bd9Sstevel@tonic-gate mblk_t *rc_timer_mp; /* reliable control chunk timer */ 5307c478bd9Sstevel@tonic-gate ire_t *ire; /* cached IRE */ 5317c478bd9Sstevel@tonic-gate uint32_t T3expire; /* # of times T3 timer expired */ 5327c478bd9Sstevel@tonic-gate 5337c478bd9Sstevel@tonic-gate uint64_t hb_secret; /* per addr "secret" in heartbeat */ 53412f47623Skcpoon uint32_t rxt_unacked; /* # unack'ed retransmitted bytes */ 5357c478bd9Sstevel@tonic-gate } sctp_faddr_t; 5367c478bd9Sstevel@tonic-gate 5377c478bd9Sstevel@tonic-gate /* Flags to indicate supported address type in the PARM_SUP_ADDRS. */ 5387c478bd9Sstevel@tonic-gate #define PARM_SUPP_V6 0x1 5397c478bd9Sstevel@tonic-gate #define PARM_SUPP_V4 0x2 5407c478bd9Sstevel@tonic-gate 5417c478bd9Sstevel@tonic-gate /* 5427c478bd9Sstevel@tonic-gate * Set heartbeat interval plus jitter. The jitter is supposed to be random, 5437c478bd9Sstevel@tonic-gate * up to +/- 50% of the RTO. We use gethrtime() here for performance reason 5447c478bd9Sstevel@tonic-gate * as the jitter does not really need to be "very" random. 5457c478bd9Sstevel@tonic-gate */ 5467c478bd9Sstevel@tonic-gate #define SET_HB_INTVL(fp) \ 5477c478bd9Sstevel@tonic-gate ((fp)->hb_interval + (fp)->rto + ((fp)->rto >> 1) - \ 548c31292eeSkcpoon (uint_t)gethrtime() % (fp)->rto) 5497c478bd9Sstevel@tonic-gate 5507c478bd9Sstevel@tonic-gate #define SCTP_IPIF_HASH 16 5517c478bd9Sstevel@tonic-gate 5527c478bd9Sstevel@tonic-gate typedef struct sctp_ipif_hash_s { 5537c478bd9Sstevel@tonic-gate list_t sctp_ipif_list; 5547c478bd9Sstevel@tonic-gate int ipif_count; 5557c478bd9Sstevel@tonic-gate } sctp_ipif_hash_t; 5567c478bd9Sstevel@tonic-gate 55712f47623Skcpoon 55812f47623Skcpoon /* 55912f47623Skcpoon * Initialize cwnd according to RFC 3390. def_max_init_cwnd is 56012f47623Skcpoon * either sctp_slow_start_initial or sctp_slow_start_after idle 56112f47623Skcpoon * depending on the caller. 56212f47623Skcpoon */ 56312f47623Skcpoon #define SET_CWND(fp, mss, def_max_init_cwnd) \ 56412f47623Skcpoon { \ 56512f47623Skcpoon (fp)->cwnd = MIN(def_max_init_cwnd * (mss), \ 56612f47623Skcpoon MIN(4 * (mss), MAX(2 * (mss), 4380 / (mss) * (mss)))); \ 56712f47623Skcpoon } 56812f47623Skcpoon 56912f47623Skcpoon 5707c478bd9Sstevel@tonic-gate struct sctp_s; 5717c478bd9Sstevel@tonic-gate 5727c478bd9Sstevel@tonic-gate /* 5737c478bd9Sstevel@tonic-gate * Control structure for each open SCTP stream, 5747c478bd9Sstevel@tonic-gate * defined only within the kernel or for a kmem user. 5757c478bd9Sstevel@tonic-gate * NOTE: sctp_reinit_values MUST have a line for each field in this structure! 5767c478bd9Sstevel@tonic-gate */ 5777c478bd9Sstevel@tonic-gate #if (defined(_KERNEL) || defined(_KMEMUSER)) 5787c478bd9Sstevel@tonic-gate 5797c478bd9Sstevel@tonic-gate typedef struct sctp_s { 5807c478bd9Sstevel@tonic-gate 5817c478bd9Sstevel@tonic-gate /* 5827c478bd9Sstevel@tonic-gate * The following is shared with (and duplicated) in IP, so if you 5837c478bd9Sstevel@tonic-gate * make changes, make sure you also change things in ip_sctp.c. 5847c478bd9Sstevel@tonic-gate */ 5857c478bd9Sstevel@tonic-gate struct sctp_s *sctp_conn_hash_next; 5867c478bd9Sstevel@tonic-gate struct sctp_s *sctp_conn_hash_prev; 5877c478bd9Sstevel@tonic-gate 5887c478bd9Sstevel@tonic-gate struct sctp_s *sctp_listen_hash_next; 5897c478bd9Sstevel@tonic-gate struct sctp_s *sctp_listen_hash_prev; 5907c478bd9Sstevel@tonic-gate 5917c478bd9Sstevel@tonic-gate sctp_tf_t *sctp_listen_tfp; /* Ptr to tf */ 5927c478bd9Sstevel@tonic-gate sctp_tf_t *sctp_conn_tfp; /* Ptr to tf */ 5937c478bd9Sstevel@tonic-gate 5947c478bd9Sstevel@tonic-gate /* Global list of sctp */ 5957c478bd9Sstevel@tonic-gate list_node_t sctp_list; 5967c478bd9Sstevel@tonic-gate 5977c478bd9Sstevel@tonic-gate sctp_faddr_t *sctp_faddrs; 5981d8c4025Svi int sctp_nfaddrs; 5997c478bd9Sstevel@tonic-gate sctp_ipif_hash_t sctp_saddrs[SCTP_IPIF_HASH]; 6007c478bd9Sstevel@tonic-gate int sctp_nsaddrs; 6017c478bd9Sstevel@tonic-gate 6027c478bd9Sstevel@tonic-gate /* 6037c478bd9Sstevel@tonic-gate * These fields contain the same information as sctp_sctph->th_*port. 6047c478bd9Sstevel@tonic-gate * However, the lookup functions can not use the header fields 6057c478bd9Sstevel@tonic-gate * since during IP option manipulation the sctp_sctph pointer 6067c478bd9Sstevel@tonic-gate * changes. 6077c478bd9Sstevel@tonic-gate */ 6087c478bd9Sstevel@tonic-gate union { 6097c478bd9Sstevel@tonic-gate struct { 6107c478bd9Sstevel@tonic-gate in_port_t sctpu_fport; /* Remote port */ 6117c478bd9Sstevel@tonic-gate in_port_t sctpu_lport; /* Local port */ 6127c478bd9Sstevel@tonic-gate } sctpu_ports1; 6137c478bd9Sstevel@tonic-gate uint32_t sctpu_ports2; /* Rem port, */ 6147c478bd9Sstevel@tonic-gate /* local port */ 6157c478bd9Sstevel@tonic-gate /* Used for SCTP_MATCH performance */ 6167c478bd9Sstevel@tonic-gate } sctp_sctpu; 6177c478bd9Sstevel@tonic-gate #define sctp_fport sctp_sctpu.sctpu_ports1.sctpu_fport 6187c478bd9Sstevel@tonic-gate #define sctp_lport sctp_sctpu.sctpu_ports1.sctpu_lport 6197c478bd9Sstevel@tonic-gate #define sctp_ports sctp_sctpu.sctpu_ports2 6207c478bd9Sstevel@tonic-gate 6217c478bd9Sstevel@tonic-gate kmutex_t sctp_lock; 6227c478bd9Sstevel@tonic-gate kcondvar_t sctp_cv; 6237c478bd9Sstevel@tonic-gate boolean_t sctp_running; 6247c478bd9Sstevel@tonic-gate 6250f1702c5SYu Xiangning #define sctp_ulpd sctp_connp->conn_upper_handle 6260f1702c5SYu Xiangning #define sctp_upcalls sctp_connp->conn_upcalls 6277c478bd9Sstevel@tonic-gate 6280f1702c5SYu Xiangning #define sctp_ulp_newconn sctp_upcalls->su_newconn 6290f1702c5SYu Xiangning #define sctp_ulp_connected sctp_upcalls->su_connected 6300f1702c5SYu Xiangning #define sctp_ulp_disconnected sctp_upcalls->su_disconnected 6310f1702c5SYu Xiangning #define sctp_ulp_opctl sctp_upcalls->su_opctl 6320f1702c5SYu Xiangning #define sctp_ulp_recv sctp_upcalls->su_recv 6330f1702c5SYu Xiangning #define sctp_ulp_xmitted sctp_upcalls->su_txq_full 6340f1702c5SYu Xiangning #define sctp_ulp_prop sctp_upcalls->su_set_proto_props 6357c478bd9Sstevel@tonic-gate 6367c478bd9Sstevel@tonic-gate int32_t sctp_state; 6377c478bd9Sstevel@tonic-gate 6387c478bd9Sstevel@tonic-gate conn_t *sctp_connp; /* conn_t stuff */ 6397c478bd9Sstevel@tonic-gate #define sctp_zoneid sctp_connp->conn_zoneid 6405d0bc3edSsommerfe #define sctp_allzones sctp_connp->conn_allzones 6415d0bc3edSsommerfe #define sctp_mac_exempt sctp_connp->conn_mac_exempt 6427c478bd9Sstevel@tonic-gate #define sctp_credp sctp_connp->conn_cred 6435d0bc3edSsommerfe #define sctp_reuseaddr sctp_connp->conn_reuseaddr 6447c478bd9Sstevel@tonic-gate 645f4b3ec61Sdh sctp_stack_t *sctp_sctps; 646f4b3ec61Sdh 6477c478bd9Sstevel@tonic-gate /* Peer address tracking */ 6487c478bd9Sstevel@tonic-gate sctp_faddr_t *sctp_lastfaddr; /* last faddr in list */ 6497c478bd9Sstevel@tonic-gate sctp_faddr_t *sctp_primary; /* primary faddr */ 6507c478bd9Sstevel@tonic-gate sctp_faddr_t *sctp_current; /* current faddr */ 6517c478bd9Sstevel@tonic-gate sctp_faddr_t *sctp_lastdata; /* last data seen from this */ 6527c478bd9Sstevel@tonic-gate 6537c478bd9Sstevel@tonic-gate /* Outbound data tracking */ 6547c478bd9Sstevel@tonic-gate mblk_t *sctp_xmit_head; 6557c478bd9Sstevel@tonic-gate mblk_t *sctp_xmit_tail; 6567c478bd9Sstevel@tonic-gate mblk_t *sctp_xmit_unsent; 6577c478bd9Sstevel@tonic-gate mblk_t *sctp_xmit_unsent_tail; 6587c478bd9Sstevel@tonic-gate mblk_t *sctp_xmit_unacked; 6597c478bd9Sstevel@tonic-gate 6607c478bd9Sstevel@tonic-gate int32_t sctp_unacked; /* # of unacked bytes */ 6617c478bd9Sstevel@tonic-gate int32_t sctp_unsent; /* # of unsent bytes in hand */ 6627c478bd9Sstevel@tonic-gate 6637c478bd9Sstevel@tonic-gate uint32_t sctp_ltsn; /* Local instance TSN */ 6647c478bd9Sstevel@tonic-gate uint32_t sctp_lastack_rxd; /* Last rx'd cumtsn */ 6657c478bd9Sstevel@tonic-gate uint32_t sctp_recovery_tsn; /* Exit from fast recovery */ 6667c478bd9Sstevel@tonic-gate uint32_t sctp_adv_pap; /* Adv. Peer Ack Point */ 6677c478bd9Sstevel@tonic-gate 6687c478bd9Sstevel@tonic-gate uint16_t sctp_num_ostr; 6697c478bd9Sstevel@tonic-gate uint16_t *sctp_ostrcntrs; 6707c478bd9Sstevel@tonic-gate 671121e5416Skcpoon mblk_t *sctp_pad_mp; /* pad unaligned data chunks */ 672121e5416Skcpoon 6737c478bd9Sstevel@tonic-gate /* sendmsg() default parameters */ 6747c478bd9Sstevel@tonic-gate uint16_t sctp_def_stream; /* default stream id */ 6757c478bd9Sstevel@tonic-gate uint16_t sctp_def_flags; /* default xmit flags */ 6767c478bd9Sstevel@tonic-gate uint32_t sctp_def_ppid; /* default payload id */ 6777c478bd9Sstevel@tonic-gate uint32_t sctp_def_context; /* default context */ 6787c478bd9Sstevel@tonic-gate uint32_t sctp_def_timetolive; /* default msg TTL */ 6797c478bd9Sstevel@tonic-gate 6807c478bd9Sstevel@tonic-gate /* Inbound data tracking */ 6817c478bd9Sstevel@tonic-gate sctp_set_t *sctp_sack_info; /* Sack tracking */ 6827c478bd9Sstevel@tonic-gate mblk_t *sctp_ack_mp; /* Delayed ACK timer block */ 6837c478bd9Sstevel@tonic-gate sctp_instr_t *sctp_instr; /* Instream trackers */ 6847c478bd9Sstevel@tonic-gate mblk_t *sctp_uo_frags; /* Un-ordered msg. fragments */ 6857c478bd9Sstevel@tonic-gate uint32_t sctp_ftsn; /* Peer's TSN */ 6867c478bd9Sstevel@tonic-gate uint32_t sctp_lastacked; /* last cumtsn SACKd */ 6877c478bd9Sstevel@tonic-gate uint16_t sctp_num_istr; /* No. of instreams */ 6887c478bd9Sstevel@tonic-gate int32_t sctp_istr_nmsgs; /* No. of chunks in instreams */ 6897c478bd9Sstevel@tonic-gate int32_t sctp_sack_gaps; /* No. of received gaps */ 6907c478bd9Sstevel@tonic-gate int32_t sctp_sack_toggle; /* SACK every other pkt */ 6917c478bd9Sstevel@tonic-gate 6927c478bd9Sstevel@tonic-gate /* RTT calculation */ 6937c478bd9Sstevel@tonic-gate uint32_t sctp_rtt_tsn; 6947c478bd9Sstevel@tonic-gate int64_t sctp_out_time; 6957c478bd9Sstevel@tonic-gate 696*35e12f9cSGeorge Shepherd /* Stats can be reset by snmp users kstat, netstat and snmp agents */ 6977c478bd9Sstevel@tonic-gate uint64_t sctp_opkts; /* sent pkts */ 6987c478bd9Sstevel@tonic-gate uint64_t sctp_obchunks; /* sent control chunks */ 6997c478bd9Sstevel@tonic-gate uint64_t sctp_odchunks; /* sent ordered data chunks */ 7007c478bd9Sstevel@tonic-gate uint64_t sctp_oudchunks; /* sent unord data chunks */ 7017c478bd9Sstevel@tonic-gate uint64_t sctp_rxtchunks; /* retransmitted chunks */ 7027c478bd9Sstevel@tonic-gate uint64_t sctp_ipkts; /* recv pkts */ 7037c478bd9Sstevel@tonic-gate uint64_t sctp_ibchunks; /* recv control chunks */ 7047c478bd9Sstevel@tonic-gate uint64_t sctp_idchunks; /* recv ordered data chunks */ 7057c478bd9Sstevel@tonic-gate uint64_t sctp_iudchunks; /* recv unord data chunks */ 7067c478bd9Sstevel@tonic-gate uint64_t sctp_fragdmsgs; 7077c478bd9Sstevel@tonic-gate uint64_t sctp_reassmsgs; 7087c478bd9Sstevel@tonic-gate uint32_t sctp_T1expire; /* # of times T1timer expired */ 7097c478bd9Sstevel@tonic-gate uint32_t sctp_T2expire; /* # of times T2timer expired */ 7107c478bd9Sstevel@tonic-gate uint32_t sctp_T3expire; /* # of times T3timer expired */ 7117c478bd9Sstevel@tonic-gate uint32_t sctp_assoc_start_time; /* time when assoc was est. */ 7127c478bd9Sstevel@tonic-gate 7137c478bd9Sstevel@tonic-gate /* Outbound flow control */ 7147c478bd9Sstevel@tonic-gate int32_t sctp_xmit_hiwater; /* Send high water mark */ 7157c478bd9Sstevel@tonic-gate int32_t sctp_xmit_lowater; /* Send low water mark */ 7167c478bd9Sstevel@tonic-gate uint32_t sctp_frwnd; /* Peer RWND */ 7177c478bd9Sstevel@tonic-gate uint32_t sctp_cwnd_max; 7187c478bd9Sstevel@tonic-gate 7197c478bd9Sstevel@tonic-gate /* Inbound flow control */ 7207c478bd9Sstevel@tonic-gate int32_t sctp_rwnd; /* Current receive window */ 7211d8c4025Svi int32_t sctp_irwnd; /* Initial receive window */ 7227c478bd9Sstevel@tonic-gate int32_t sctp_rxqueued; /* No. of bytes in RX q's */ 7237c478bd9Sstevel@tonic-gate 7247c478bd9Sstevel@tonic-gate /* Pre-initialized composite headers */ 7257c478bd9Sstevel@tonic-gate char *sctp_iphc; /* v4 sctp/ip hdr template buffer */ 7267c478bd9Sstevel@tonic-gate char *sctp_iphc6; /* v6 sctp/ip hdr template buffer */ 7277c478bd9Sstevel@tonic-gate 7287c478bd9Sstevel@tonic-gate int32_t sctp_iphc_len; /* actual allocated v4 buffer size */ 7297c478bd9Sstevel@tonic-gate int32_t sctp_iphc6_len; /* actual allocated v6 buffer size */ 7307c478bd9Sstevel@tonic-gate 7317c478bd9Sstevel@tonic-gate int32_t sctp_hdr_len; /* len of combined SCTP/IP v4 hdr */ 7327c478bd9Sstevel@tonic-gate int32_t sctp_hdr6_len; /* len of combined SCTP/IP v6 hdr */ 7337c478bd9Sstevel@tonic-gate 7347c478bd9Sstevel@tonic-gate ipha_t *sctp_ipha; /* IPv4 header in the buffer */ 7357c478bd9Sstevel@tonic-gate ip6_t *sctp_ip6h; /* IPv6 header in the buffer */ 7367c478bd9Sstevel@tonic-gate 7377c478bd9Sstevel@tonic-gate int32_t sctp_ip_hdr_len; /* Byte len of our current v4 hdr */ 7387c478bd9Sstevel@tonic-gate int32_t sctp_ip_hdr6_len; /* Byte len of our current v6 hdr */ 7397c478bd9Sstevel@tonic-gate 7407c478bd9Sstevel@tonic-gate sctp_hdr_t *sctp_sctph; /* sctp header in combined v4 hdr */ 7417c478bd9Sstevel@tonic-gate sctp_hdr_t *sctp_sctph6; /* sctp header in combined v6 hdr */ 7427c478bd9Sstevel@tonic-gate 7437c478bd9Sstevel@tonic-gate uint32_t sctp_lvtag; /* local SCTP instance verf tag */ 7447c478bd9Sstevel@tonic-gate uint32_t sctp_fvtag; /* Peer's SCTP verf tag */ 7457c478bd9Sstevel@tonic-gate 7467c478bd9Sstevel@tonic-gate /* Path MTU Discovery */ 7477c478bd9Sstevel@tonic-gate int64_t sctp_last_mtu_probe; 7487c478bd9Sstevel@tonic-gate clock_t sctp_mtu_probe_intvl; 7497c478bd9Sstevel@tonic-gate uint32_t sctp_mss; /* Max send size (not TCP MSS!) */ 7507c478bd9Sstevel@tonic-gate 7517c478bd9Sstevel@tonic-gate /* structs sctp_bits, sctp_events are for clearing all bits at once */ 7527c478bd9Sstevel@tonic-gate struct { 7537c478bd9Sstevel@tonic-gate uint32_t 7547c478bd9Sstevel@tonic-gate 7557c478bd9Sstevel@tonic-gate sctp_understands_asconf : 1, /* Peer handles ASCONF chunks */ 7567c478bd9Sstevel@tonic-gate sctp_debug : 1, /* SO_DEBUG "socket" option. */ 7577c478bd9Sstevel@tonic-gate sctp_cchunk_pend : 1, /* Control chunk in flight. */ 7587c478bd9Sstevel@tonic-gate sctp_dgram_errind : 1, /* SO_DGRAM_ERRIND option */ 7597c478bd9Sstevel@tonic-gate 7607c478bd9Sstevel@tonic-gate sctp_linger : 1, /* SO_LINGER turned on */ 7617c478bd9Sstevel@tonic-gate sctp_lingering : 1, /* Lingering in close */ 7627c478bd9Sstevel@tonic-gate sctp_loopback: 1, /* src and dst are the same machine */ 7637c478bd9Sstevel@tonic-gate sctp_force_sack : 1, 7647c478bd9Sstevel@tonic-gate 7657c478bd9Sstevel@tonic-gate sctp_ack_timer_running: 1, /* Delayed ACK timer running */ 7667c478bd9Sstevel@tonic-gate sctp_recvdstaddr : 1, /* return T_EXTCONN_IND with dstaddr */ 7677c478bd9Sstevel@tonic-gate sctp_hwcksum : 1, /* The NIC is capable of hwcksum */ 7687c478bd9Sstevel@tonic-gate sctp_understands_addip : 1, 7697c478bd9Sstevel@tonic-gate 7707c478bd9Sstevel@tonic-gate sctp_bound_to_all : 1, 7717c478bd9Sstevel@tonic-gate sctp_cansleep : 1, /* itf routines can sleep */ 7727c478bd9Sstevel@tonic-gate sctp_detached : 1, /* If we're detached from a stream */ 773558fbd03Skcpoon sctp_send_adaptation : 1, /* send adaptation layer ind */ 7747c478bd9Sstevel@tonic-gate 775558fbd03Skcpoon sctp_recv_adaptation : 1, /* recv adaptation layer ind */ 7767c478bd9Sstevel@tonic-gate sctp_ndelay : 1, /* turn off Nagle */ 7777c478bd9Sstevel@tonic-gate sctp_condemned : 1, /* this sctp is about to disappear */ 7787c478bd9Sstevel@tonic-gate sctp_chk_fast_rexmit : 1, /* check for fast rexmit message */ 779f551bb10Svi 780f551bb10Svi sctp_prsctp_aware : 1, /* is peer PR-SCTP aware? */ 78145916cd2Sjpk sctp_linklocal : 1, /* is linklocal assoc. */ 78277c67f2fSkcpoon sctp_rexmitting : 1, /* SCTP is retransmitting */ 783769b977dSvi sctp_zero_win_probe : 1, /* doing zero win probe */ 78477c67f2fSkcpoon 7850f1702c5SYu Xiangning sctp_txq_full : 1, /* the tx queue is full */ 786c31292eeSkcpoon sctp_ulp_discon_done : 1, /* ulp_disconnecting done */ 7870f1702c5SYu Xiangning sctp_dummy : 6; 7887c478bd9Sstevel@tonic-gate } sctp_bits; 7897c478bd9Sstevel@tonic-gate struct { 7907c478bd9Sstevel@tonic-gate uint32_t 7917c478bd9Sstevel@tonic-gate 7927c478bd9Sstevel@tonic-gate sctp_recvsndrcvinfo : 1, 7937c478bd9Sstevel@tonic-gate sctp_recvassocevnt : 1, 7947c478bd9Sstevel@tonic-gate sctp_recvpathevnt : 1, 7957c478bd9Sstevel@tonic-gate sctp_recvsendfailevnt : 1, 7967c478bd9Sstevel@tonic-gate 7977c478bd9Sstevel@tonic-gate sctp_recvpeererr : 1, 7987c478bd9Sstevel@tonic-gate sctp_recvshutdownevnt : 1, 7997c478bd9Sstevel@tonic-gate sctp_recvpdevnt : 1, 8007c478bd9Sstevel@tonic-gate sctp_recvalevnt : 1; 8017c478bd9Sstevel@tonic-gate } sctp_events; 8027c478bd9Sstevel@tonic-gate #define sctp_priv_stream sctp_bits.sctp_priv_stream 8037c478bd9Sstevel@tonic-gate #define sctp_understands_asconf sctp_bits.sctp_understands_asconf 8047c478bd9Sstevel@tonic-gate #define sctp_debug sctp_bits.sctp_debug 8057c478bd9Sstevel@tonic-gate #define sctp_cchunk_pend sctp_bits.sctp_cchunk_pend 8067c478bd9Sstevel@tonic-gate #define sctp_dgram_errind sctp_bits.sctp_dgram_errind 8077c478bd9Sstevel@tonic-gate #define sctp_linger sctp_bits.sctp_linger 8087c478bd9Sstevel@tonic-gate #define sctp_lingering sctp_bits.sctp_lingering 8097c478bd9Sstevel@tonic-gate #define sctp_loopback sctp_bits.sctp_loopback 8107c478bd9Sstevel@tonic-gate #define sctp_force_sack sctp_bits.sctp_force_sack 8117c478bd9Sstevel@tonic-gate #define sctp_ack_timer_running sctp_bits.sctp_ack_timer_running 8127c478bd9Sstevel@tonic-gate #define sctp_recvdstaddr sctp_bits.sctp_recvdstaddr 8137c478bd9Sstevel@tonic-gate #define sctp_hwcksum sctp_bits.sctp_hwcksum 8147c478bd9Sstevel@tonic-gate #define sctp_understands_addip sctp_bits.sctp_understands_addip 8157c478bd9Sstevel@tonic-gate #define sctp_bound_to_all sctp_bits.sctp_bound_to_all 8167c478bd9Sstevel@tonic-gate #define sctp_cansleep sctp_bits.sctp_cansleep 8177c478bd9Sstevel@tonic-gate #define sctp_detached sctp_bits.sctp_detached 818558fbd03Skcpoon #define sctp_send_adaptation sctp_bits.sctp_send_adaptation 819558fbd03Skcpoon #define sctp_recv_adaptation sctp_bits.sctp_recv_adaptation 8207c478bd9Sstevel@tonic-gate #define sctp_ndelay sctp_bits.sctp_ndelay 8217c478bd9Sstevel@tonic-gate #define sctp_condemned sctp_bits.sctp_condemned 8227c478bd9Sstevel@tonic-gate #define sctp_chk_fast_rexmit sctp_bits.sctp_chk_fast_rexmit 8237c478bd9Sstevel@tonic-gate #define sctp_prsctp_aware sctp_bits.sctp_prsctp_aware 824f551bb10Svi #define sctp_linklocal sctp_bits.sctp_linklocal 82577c67f2fSkcpoon #define sctp_rexmitting sctp_bits.sctp_rexmitting 826769b977dSvi #define sctp_zero_win_probe sctp_bits.sctp_zero_win_probe 8270f1702c5SYu Xiangning #define sctp_txq_full sctp_bits.sctp_txq_full 828c31292eeSkcpoon #define sctp_ulp_discon_done sctp_bits.sctp_ulp_discon_done 8297c478bd9Sstevel@tonic-gate 8307c478bd9Sstevel@tonic-gate #define sctp_recvsndrcvinfo sctp_events.sctp_recvsndrcvinfo 8317c478bd9Sstevel@tonic-gate #define sctp_recvassocevnt sctp_events.sctp_recvassocevnt 8327c478bd9Sstevel@tonic-gate #define sctp_recvpathevnt sctp_events.sctp_recvpathevnt 8337c478bd9Sstevel@tonic-gate #define sctp_recvsendfailevnt sctp_events.sctp_recvsendfailevnt 8347c478bd9Sstevel@tonic-gate #define sctp_recvpeererr sctp_events.sctp_recvpeererr 8357c478bd9Sstevel@tonic-gate #define sctp_recvshutdownevnt sctp_events.sctp_recvshutdownevnt 8367c478bd9Sstevel@tonic-gate #define sctp_recvpdevnt sctp_events.sctp_recvpdevnt 8377c478bd9Sstevel@tonic-gate #define sctp_recvalevnt sctp_events.sctp_recvalevnt 8387c478bd9Sstevel@tonic-gate 8397c478bd9Sstevel@tonic-gate /* Retransmit info */ 8407c478bd9Sstevel@tonic-gate mblk_t *sctp_cookie_mp; /* cookie chunk, if rxt needed */ 8417c478bd9Sstevel@tonic-gate int32_t sctp_strikes; /* Total number of assoc strikes */ 8427c478bd9Sstevel@tonic-gate int32_t sctp_max_init_rxt; 8437c478bd9Sstevel@tonic-gate int32_t sctp_pa_max_rxt; /* Max per-assoc retransmit cnt */ 8447c478bd9Sstevel@tonic-gate int32_t sctp_pp_max_rxt; /* Max per-path retransmit cnt */ 8457c478bd9Sstevel@tonic-gate uint32_t sctp_rto_max; 8467c478bd9Sstevel@tonic-gate uint32_t sctp_init_rto_max; 8477c478bd9Sstevel@tonic-gate uint32_t sctp_rto_min; 8487c478bd9Sstevel@tonic-gate uint32_t sctp_rto_initial; 8497c478bd9Sstevel@tonic-gate 8507c478bd9Sstevel@tonic-gate int64_t sctp_last_secret_update; 8517c478bd9Sstevel@tonic-gate uint8_t sctp_secret[SCTP_SECRET_LEN]; /* for cookie auth */ 8527c478bd9Sstevel@tonic-gate uint8_t sctp_old_secret[SCTP_SECRET_LEN]; 85312f47623Skcpoon uint32_t sctp_cookie_lifetime; /* cookie lifetime in tick */ 8547c478bd9Sstevel@tonic-gate 8557c478bd9Sstevel@tonic-gate /* 8567c478bd9Sstevel@tonic-gate * Address family that app wishes returned addrsses to be in. 8577c478bd9Sstevel@tonic-gate * Currently taken from address family used in T_BIND_REQ, but 8587c478bd9Sstevel@tonic-gate * should really come from family used in original socket() call. 8597c478bd9Sstevel@tonic-gate * Value can be AF_INET or AF_INET6. 8607c478bd9Sstevel@tonic-gate */ 8617c478bd9Sstevel@tonic-gate uint_t sctp_family; 8627c478bd9Sstevel@tonic-gate ushort_t sctp_ipversion; 8637c478bd9Sstevel@tonic-gate 8647c478bd9Sstevel@tonic-gate /* Bind hash tables */ 8657c478bd9Sstevel@tonic-gate kmutex_t *sctp_bind_lockp; /* Ptr to tf_lock */ 8667c478bd9Sstevel@tonic-gate struct sctp_s *sctp_bind_hash; 8677c478bd9Sstevel@tonic-gate struct sctp_s **sctp_ptpbhn; 8687c478bd9Sstevel@tonic-gate 8697c478bd9Sstevel@tonic-gate /* Shutdown / cleanup */ 8707c478bd9Sstevel@tonic-gate sctp_faddr_t *sctp_shutdown_faddr; /* rotate faddr during shutd */ 8717c478bd9Sstevel@tonic-gate int32_t sctp_client_errno; /* How the client screwed up */ 8727c478bd9Sstevel@tonic-gate int sctp_lingertime; /* Close linger time (in seconds) */ 8737c478bd9Sstevel@tonic-gate kmutex_t sctp_reflock; /* Protects sctp_refcnt & timer mp */ 8747c478bd9Sstevel@tonic-gate ushort_t sctp_refcnt; /* No. of pending upstream msg */ 8757c478bd9Sstevel@tonic-gate mblk_t *sctp_timer_mp; /* List of fired timers. */ 8767c478bd9Sstevel@tonic-gate 8777c478bd9Sstevel@tonic-gate /* Misc */ 8787c478bd9Sstevel@tonic-gate uint_t sctp_bound_if; /* IPV6_BOUND_IF */ 8797c478bd9Sstevel@tonic-gate 8807c478bd9Sstevel@tonic-gate mblk_t *sctp_heartbeat_mp; /* Timer block for heartbeats */ 8817c478bd9Sstevel@tonic-gate uint32_t sctp_hb_interval; /* Default hb_interval */ 8827c478bd9Sstevel@tonic-gate 8837c478bd9Sstevel@tonic-gate int32_t sctp_autoclose; /* Auto disconnect in ticks */ 8847c478bd9Sstevel@tonic-gate int64_t sctp_active; /* Last time data/sack on this conn */ 885558fbd03Skcpoon uint32_t sctp_tx_adaptation_code; /* TX adaptation code */ 886558fbd03Skcpoon uint32_t sctp_rx_adaptation_code; /* RX adaptation code */ 8877c478bd9Sstevel@tonic-gate 8887c478bd9Sstevel@tonic-gate /* Reliable control chunks */ 8897c478bd9Sstevel@tonic-gate mblk_t *sctp_cxmit_list; /* Xmit list for control chunks */ 8907c478bd9Sstevel@tonic-gate uint32_t sctp_lcsn; /* Our serial number */ 8917c478bd9Sstevel@tonic-gate uint32_t sctp_fcsn; /* Peer serial number */ 8927c478bd9Sstevel@tonic-gate 8937c478bd9Sstevel@tonic-gate /* Per association receive queue */ 8947c478bd9Sstevel@tonic-gate kmutex_t sctp_recvq_lock; 8957c478bd9Sstevel@tonic-gate mblk_t *sctp_recvq; 8967c478bd9Sstevel@tonic-gate mblk_t *sctp_recvq_tail; 8977c478bd9Sstevel@tonic-gate taskq_t *sctp_recvq_tq; 8987c478bd9Sstevel@tonic-gate 8997c478bd9Sstevel@tonic-gate /* Send queue to IP */ 9007c478bd9Sstevel@tonic-gate kmutex_t sctp_sendq_lock; 9017c478bd9Sstevel@tonic-gate mblk_t *sctp_sendq; 9027c478bd9Sstevel@tonic-gate mblk_t *sctp_sendq_tail; 9037c478bd9Sstevel@tonic-gate boolean_t sctp_sendq_sending; 9047c478bd9Sstevel@tonic-gate 9057c478bd9Sstevel@tonic-gate /* IPv6 ancillary data */ 9067c478bd9Sstevel@tonic-gate uint_t sctp_ipv6_recvancillary; /* flags */ 9077c478bd9Sstevel@tonic-gate #define SCTP_IPV6_RECVPKTINFO 0x01 /* IPV6_RECVPKTINFO opt */ 9087c478bd9Sstevel@tonic-gate #define SCTP_IPV6_RECVHOPLIMIT 0x02 /* IPV6_RECVHOPLIMIT opt */ 9097c478bd9Sstevel@tonic-gate #define SCTP_IPV6_RECVHOPOPTS 0x04 /* IPV6_RECVHOPOPTS opt */ 9107c478bd9Sstevel@tonic-gate #define SCTP_IPV6_RECVDSTOPTS 0x08 /* IPV6_RECVDSTOPTS opt */ 9117c478bd9Sstevel@tonic-gate #define SCTP_IPV6_RECVRTHDR 0x10 /* IPV6_RECVRTHDR opt */ 9127c478bd9Sstevel@tonic-gate #define SCTP_IPV6_RECVRTDSTOPTS 0x20 /* IPV6_RECVRTHDRDSTOPTS opt */ 9137c478bd9Sstevel@tonic-gate 9147c478bd9Sstevel@tonic-gate uint_t sctp_recvifindex; /* last rcvd IPV6_RCVPKTINFO */ 9157c478bd9Sstevel@tonic-gate uint_t sctp_recvhops; /* " IPV6_RECVHOPLIMIT */ 9167c478bd9Sstevel@tonic-gate ip6_hbh_t *sctp_hopopts; /* " IPV6_RECVHOPOPTS */ 9177c478bd9Sstevel@tonic-gate ip6_dest_t *sctp_dstopts; /* " IPV6_RECVDSTOPTS */ 9187c478bd9Sstevel@tonic-gate ip6_dest_t *sctp_rtdstopts; /* " IPV6_RECVRTHDRDSTOPTS */ 9197c478bd9Sstevel@tonic-gate ip6_rthdr_t *sctp_rthdr; /* " IPV6_RECVRTHDR */ 9207c478bd9Sstevel@tonic-gate uint_t sctp_hopoptslen; 9217c478bd9Sstevel@tonic-gate uint_t sctp_dstoptslen; 9227c478bd9Sstevel@tonic-gate uint_t sctp_rtdstoptslen; 9237c478bd9Sstevel@tonic-gate uint_t sctp_rthdrlen; 9247c478bd9Sstevel@tonic-gate 9257c478bd9Sstevel@tonic-gate ip6_pkt_t sctp_sticky_ipp; /* Sticky options */ 9267c478bd9Sstevel@tonic-gate #define sctp_ipp_fields sctp_sticky_ipp.ipp_fields 9277c478bd9Sstevel@tonic-gate #define sctp_ipp_ifindex sctp_sticky_ipp.ipp_ifindex 9287c478bd9Sstevel@tonic-gate #define sctp_ipp_addr sctp_sticky_ipp.ipp_addr 9297c478bd9Sstevel@tonic-gate #define sctp_ipp_hoplimit sctp_sticky_ipp.ipp_hoplimit 9307c478bd9Sstevel@tonic-gate #define sctp_ipp_hopoptslen sctp_sticky_ipp.ipp_hopoptslen 9317c478bd9Sstevel@tonic-gate #define sctp_ipp_rtdstoptslen sctp_sticky_ipp.ipp_rtdstoptslen 9327c478bd9Sstevel@tonic-gate #define sctp_ipp_rthdrlen sctp_sticky_ipp.ipp_rthdrlen 9337c478bd9Sstevel@tonic-gate #define sctp_ipp_dstoptslen sctp_sticky_ipp.ipp_dstoptslen 9347c478bd9Sstevel@tonic-gate #define sctp_ipp_hopopts sctp_sticky_ipp.ipp_hopopts 9357c478bd9Sstevel@tonic-gate #define sctp_ipp_rtdstopts sctp_sticky_ipp.ipp_rtdstopts 9367c478bd9Sstevel@tonic-gate #define sctp_ipp_rthdr sctp_sticky_ipp.ipp_rthdr 9377c478bd9Sstevel@tonic-gate #define sctp_ipp_dstopts sctp_sticky_ipp.ipp_dstopts 9387f99e6fcSkp #define sctp_ipp_pathmtu sctp_sticky_ipp.ipp_pathmtu 9397c478bd9Sstevel@tonic-gate #define sctp_ipp_nexthop sctp_sticky_ipp.ipp_nexthop 9407c478bd9Sstevel@tonic-gate /* Stats */ 9417c478bd9Sstevel@tonic-gate uint64_t sctp_msgcount; 9427c478bd9Sstevel@tonic-gate uint64_t sctp_prsctpdrop; 94345916cd2Sjpk 94445916cd2Sjpk uint_t sctp_v4label_len; /* length of cached v4 label */ 94545916cd2Sjpk uint_t sctp_v6label_len; /* length of cached v6 label */ 94677c67f2fSkcpoon uint32_t sctp_rxt_nxttsn; /* Next TSN to be rexmitted */ 94777c67f2fSkcpoon uint32_t sctp_rxt_maxtsn; /* Max TSN sent at time out */ 9487d546a59Svi 9497d546a59Svi int sctp_pd_point; /* Partial delivery point */ 9507f093707Skcpoon mblk_t *sctp_err_chunks; /* Error chunks */ 9517f093707Skcpoon uint32_t sctp_err_len; /* Total error chunks length */ 952de8c4a14SErik Nordmark 953de8c4a14SErik Nordmark pid_t sctp_cpid; /* Process id when this was opened */ 954de8c4a14SErik Nordmark uint64_t sctp_open_time; /* time when this was opened */ 9559f13099eSGeorge Shepherd 9569f13099eSGeorge Shepherd /* additional source data for per endpoint association statistics */ 9579f13099eSGeorge Shepherd uint64_t sctp_outseqtsns; /* TSN rx > expected TSN */ 9589f13099eSGeorge Shepherd uint64_t sctp_osacks; /* total sacks sent */ 9599f13099eSGeorge Shepherd uint64_t sctp_isacks; /* total sacks received */ 9609f13099eSGeorge Shepherd uint64_t sctp_idupchunks; /* rx dups, ord or unord */ 9619f13099eSGeorge Shepherd uint64_t sctp_gapcnt; /* total gap acks rx */ 962*35e12f9cSGeorge Shepherd /* 963*35e12f9cSGeorge Shepherd * Add the current data from the counters which are reset by snmp 964*35e12f9cSGeorge Shepherd * to these cumulative counters to use in per endpoint statistics. 965*35e12f9cSGeorge Shepherd */ 966*35e12f9cSGeorge Shepherd uint64_t sctp_cum_obchunks; /* sent control chunks */ 967*35e12f9cSGeorge Shepherd uint64_t sctp_cum_odchunks; /* sent ordered data chunks */ 968*35e12f9cSGeorge Shepherd uint64_t sctp_cum_oudchunks; /* sent unord data chunks */ 969*35e12f9cSGeorge Shepherd uint64_t sctp_cum_rxtchunks; /* retransmitted chunks */ 970*35e12f9cSGeorge Shepherd uint64_t sctp_cum_ibchunks; /* recv control chunks */ 971*35e12f9cSGeorge Shepherd uint64_t sctp_cum_idchunks; /* recv ordered data chunks */ 972*35e12f9cSGeorge Shepherd uint64_t sctp_cum_iudchunks; /* recv unord data chunks */ 9739f13099eSGeorge Shepherd 9749f13099eSGeorge Shepherd /* 9759f13099eSGeorge Shepherd * When non-zero, this is the maximum observed RTO since assoc stats 9769f13099eSGeorge Shepherd * were last requested. When zero, no RTO update has occurred since 9779f13099eSGeorge Shepherd * the previous user request for stats on this endpoint. 9789f13099eSGeorge Shepherd */ 9799f13099eSGeorge Shepherd int sctp_maxrto; 9809f13099eSGeorge Shepherd /* 9819f13099eSGeorge Shepherd * The stored value of sctp_maxrto passed to user during the previous 9829f13099eSGeorge Shepherd * user request for stats on this endpoint. 9839f13099eSGeorge Shepherd */ 9849f13099eSGeorge Shepherd int sctp_prev_maxrto; 9857c478bd9Sstevel@tonic-gate } sctp_t; 9867c478bd9Sstevel@tonic-gate 9870f1702c5SYu Xiangning #define SCTP_TXQ_LEN(sctp) ((sctp)->sctp_unsent + (sctp)->sctp_unacked) 9880f1702c5SYu Xiangning #define SCTP_TXQ_UPDATE(sctp) \ 9890f1702c5SYu Xiangning if ((sctp)->sctp_txq_full && SCTP_TXQ_LEN(sctp) <= \ 9900f1702c5SYu Xiangning (sctp)->sctp_xmit_lowater) { \ 9910f1702c5SYu Xiangning (sctp)->sctp_txq_full = 0; \ 9920f1702c5SYu Xiangning (sctp)->sctp_ulp_xmitted((sctp)->sctp_ulpd, \ 9930f1702c5SYu Xiangning B_FALSE); \ 9940f1702c5SYu Xiangning } 9950f1702c5SYu Xiangning 9967c478bd9Sstevel@tonic-gate #endif /* (defined(_KERNEL) || defined(_KMEMUSER)) */ 9977c478bd9Sstevel@tonic-gate 9987c478bd9Sstevel@tonic-gate extern void sctp_ack_timer(sctp_t *); 999558fbd03Skcpoon extern size_t sctp_adaptation_code_param(sctp_t *, uchar_t *); 1000558fbd03Skcpoon extern void sctp_adaptation_event(sctp_t *); 10017f093707Skcpoon extern void sctp_add_err(sctp_t *, uint16_t, void *, size_t, 10027f093707Skcpoon sctp_faddr_t *); 100377c67f2fSkcpoon extern int sctp_add_faddr(sctp_t *, in6_addr_t *, int, boolean_t); 10047c478bd9Sstevel@tonic-gate extern boolean_t sctp_add_ftsn_set(sctp_ftsn_set_t **, sctp_faddr_t *, mblk_t *, 10057c478bd9Sstevel@tonic-gate uint_t *, uint32_t *); 10067c478bd9Sstevel@tonic-gate extern boolean_t sctp_add_recvq(sctp_t *, mblk_t *, boolean_t); 10077c478bd9Sstevel@tonic-gate extern void sctp_add_sendq(sctp_t *, mblk_t *); 1008c513743fSGeorge Shepherd extern void sctp_add_unrec_parm(sctp_parm_hdr_t *, mblk_t **, boolean_t); 100912f47623Skcpoon extern size_t sctp_addr_params(sctp_t *, int, uchar_t *, boolean_t); 1010df19b344Svi extern mblk_t *sctp_add_proto_hdr(sctp_t *, sctp_faddr_t *, mblk_t *, int, 1011df19b344Svi int *); 10127c478bd9Sstevel@tonic-gate extern void sctp_addr_req(sctp_t *, mblk_t *); 10137c478bd9Sstevel@tonic-gate extern sctp_t *sctp_addrlist2sctp(mblk_t *, sctp_hdr_t *, sctp_chunk_hdr_t *, 1014e35d2278Svi zoneid_t, sctp_stack_t *); 10157c478bd9Sstevel@tonic-gate extern void sctp_add_hdr(sctp_t *, uchar_t *, size_t); 10167c478bd9Sstevel@tonic-gate extern void sctp_check_adv_ack_pt(sctp_t *, mblk_t *, mblk_t *); 10177c478bd9Sstevel@tonic-gate extern void sctp_assoc_event(sctp_t *, uint16_t, uint16_t, 10187c478bd9Sstevel@tonic-gate sctp_chunk_hdr_t *); 10197c478bd9Sstevel@tonic-gate 10207c478bd9Sstevel@tonic-gate extern void sctp_bind_hash_insert(sctp_tf_t *, sctp_t *, int); 10217c478bd9Sstevel@tonic-gate extern void sctp_bind_hash_remove(sctp_t *); 102245916cd2Sjpk extern int sctp_bindi(sctp_t *, in_port_t, boolean_t, int, in_port_t *); 10231d8c4025Svi extern int sctp_bind_add(sctp_t *, const void *, uint32_t, boolean_t, 10241d8c4025Svi in_port_t); 10257c478bd9Sstevel@tonic-gate extern int sctp_bind_del(sctp_t *, const void *, uint32_t, boolean_t); 10267c478bd9Sstevel@tonic-gate extern int sctp_build_hdrs(sctp_t *); 10277c478bd9Sstevel@tonic-gate 10287c478bd9Sstevel@tonic-gate extern int sctp_check_abandoned_msg(sctp_t *, mblk_t *); 10297c478bd9Sstevel@tonic-gate extern void sctp_clean_death(sctp_t *, int); 10307c478bd9Sstevel@tonic-gate extern void sctp_close_eager(sctp_t *); 10317c478bd9Sstevel@tonic-gate extern int sctp_compare_faddrsets(sctp_faddr_t *, sctp_faddr_t *); 10327c478bd9Sstevel@tonic-gate extern void sctp_congest_reset(sctp_t *); 10337c478bd9Sstevel@tonic-gate extern void sctp_conn_hash_insert(sctp_tf_t *, sctp_t *, int); 10347c478bd9Sstevel@tonic-gate extern void sctp_conn_hash_remove(sctp_t *); 1035121e5416Skcpoon extern void sctp_conn_init(conn_t *); 1036e35d2278Svi extern sctp_t *sctp_conn_match(in6_addr_t *, in6_addr_t *, uint32_t, 1037f4b3ec61Sdh zoneid_t, sctp_stack_t *); 10387c478bd9Sstevel@tonic-gate extern sctp_t *sctp_conn_request(sctp_t *, mblk_t *, uint_t, uint_t, 10397c478bd9Sstevel@tonic-gate sctp_init_chunk_t *, mblk_t *); 10407c478bd9Sstevel@tonic-gate extern int sctp_conprim_opt_process(queue_t *, mblk_t *, int *, int *, 10417c478bd9Sstevel@tonic-gate int *); 10427c478bd9Sstevel@tonic-gate extern uint32_t sctp_cumack(sctp_t *, uint32_t, mblk_t **); 10437c478bd9Sstevel@tonic-gate extern sctp_t *sctp_create_eager(sctp_t *); 10447c478bd9Sstevel@tonic-gate 10457c478bd9Sstevel@tonic-gate extern void sctp_dispatch_rput(queue_t *, sctp_t *, sctp_hdr_t *, mblk_t *, 10467c478bd9Sstevel@tonic-gate uint_t, uint_t, in6_addr_t); 10477c478bd9Sstevel@tonic-gate extern char *sctp_display(sctp_t *, char *); 1048f4b3ec61Sdh extern void sctp_display_all(sctp_stack_t *); 10497c478bd9Sstevel@tonic-gate 10507c478bd9Sstevel@tonic-gate extern void sctp_error_event(sctp_t *, sctp_chunk_hdr_t *); 10517c478bd9Sstevel@tonic-gate 10527c478bd9Sstevel@tonic-gate extern void sctp_faddr_alive(sctp_t *, sctp_faddr_t *); 10537c478bd9Sstevel@tonic-gate extern int sctp_faddr_dead(sctp_t *, sctp_faddr_t *, int); 105445916cd2Sjpk extern void sctp_faddr_fini(void); 105545916cd2Sjpk extern void sctp_faddr_init(void); 10567c478bd9Sstevel@tonic-gate extern void sctp_fast_rexmit(sctp_t *); 10577c478bd9Sstevel@tonic-gate extern void sctp_fill_sack(sctp_t *, unsigned char *, int); 10587c478bd9Sstevel@tonic-gate extern void sctp_free_faddr_timers(sctp_t *); 10597c478bd9Sstevel@tonic-gate extern void sctp_free_ftsn_set(sctp_ftsn_set_t *); 10607c478bd9Sstevel@tonic-gate extern void sctp_free_msg(mblk_t *); 10617c478bd9Sstevel@tonic-gate extern void sctp_free_reass(sctp_instr_t *); 10627c478bd9Sstevel@tonic-gate extern void sctp_free_set(sctp_set_t *); 10637c478bd9Sstevel@tonic-gate extern void sctp_ftsn_sets_fini(void); 10647c478bd9Sstevel@tonic-gate extern void sctp_ftsn_sets_init(void); 10657c478bd9Sstevel@tonic-gate 10661d8c4025Svi extern int sctp_get_addrlist(sctp_t *, const void *, uint32_t *, 10671d8c4025Svi uchar_t **, int *, size_t *); 1068f4b3ec61Sdh extern void sctp_g_q_inactive(sctp_stack_t *); 10697c478bd9Sstevel@tonic-gate extern int sctp_get_addrparams(sctp_t *, sctp_t *, mblk_t *, 10707c478bd9Sstevel@tonic-gate sctp_chunk_hdr_t *, uint_t *); 107177c67f2fSkcpoon extern void sctp_get_ire(sctp_t *, sctp_faddr_t *); 10721d8c4025Svi extern void sctp_get_faddr_list(sctp_t *, uchar_t *, size_t); 10737c478bd9Sstevel@tonic-gate extern mblk_t *sctp_get_first_sent(sctp_t *); 10747c478bd9Sstevel@tonic-gate extern mblk_t *sctp_get_msg_to_send(sctp_t *, mblk_t **, mblk_t *, int *, 10757c478bd9Sstevel@tonic-gate int32_t, uint32_t, sctp_faddr_t *); 10761d8c4025Svi extern void sctp_get_saddr_list(sctp_t *, uchar_t *, size_t); 10777c478bd9Sstevel@tonic-gate 10787c478bd9Sstevel@tonic-gate extern int sctp_handle_error(sctp_t *, sctp_hdr_t *, sctp_chunk_hdr_t *, 10797c478bd9Sstevel@tonic-gate mblk_t *); 1080f4b3ec61Sdh extern void sctp_hash_destroy(sctp_stack_t *); 1081f4b3ec61Sdh extern void sctp_hash_init(sctp_stack_t *); 10827c478bd9Sstevel@tonic-gate extern int sctp_header_init_ipv4(sctp_t *, int); 10837c478bd9Sstevel@tonic-gate extern int sctp_header_init_ipv6(sctp_t *, int); 10847c478bd9Sstevel@tonic-gate extern void sctp_heartbeat_timer(sctp_t *); 10857c478bd9Sstevel@tonic-gate 10867c478bd9Sstevel@tonic-gate extern void sctp_icmp_error(sctp_t *, mblk_t *); 1087f4b3ec61Sdh extern void sctp_inc_taskq(sctp_stack_t *); 10887c478bd9Sstevel@tonic-gate extern void sctp_info_req(sctp_t *, mblk_t *); 10897c478bd9Sstevel@tonic-gate extern mblk_t *sctp_init_mp(sctp_t *); 10907c478bd9Sstevel@tonic-gate extern boolean_t sctp_initialize_params(sctp_t *, sctp_init_chunk_t *, 10917c478bd9Sstevel@tonic-gate sctp_init_chunk_t *); 10927c478bd9Sstevel@tonic-gate extern uint32_t sctp_init2vtag(sctp_chunk_hdr_t *); 10937c478bd9Sstevel@tonic-gate extern void sctp_intf_event(sctp_t *, in6_addr_t, int, int); 10947c478bd9Sstevel@tonic-gate extern void sctp_input_data(sctp_t *, mblk_t *, mblk_t *); 10957c478bd9Sstevel@tonic-gate extern void sctp_instream_cleanup(sctp_t *, boolean_t); 10967c478bd9Sstevel@tonic-gate extern int sctp_is_a_faddr_clean(sctp_t *); 10977c478bd9Sstevel@tonic-gate 1098f4b3ec61Sdh extern void *sctp_kstat_init(netstackid_t); 1099f4b3ec61Sdh extern void sctp_kstat_fini(netstackid_t, kstat_t *); 1100f4b3ec61Sdh extern void *sctp_kstat2_init(netstackid_t, sctp_kstat_t *); 1101f4b3ec61Sdh extern void sctp_kstat2_fini(netstackid_t, kstat_t *); 11027c478bd9Sstevel@tonic-gate 11037c478bd9Sstevel@tonic-gate extern ssize_t sctp_link_abort(mblk_t *, uint16_t, char *, size_t, int, 11047c478bd9Sstevel@tonic-gate boolean_t); 11057c478bd9Sstevel@tonic-gate extern void sctp_listen_hash_insert(sctp_tf_t *, sctp_t *); 11067c478bd9Sstevel@tonic-gate extern void sctp_listen_hash_remove(sctp_t *); 11077c478bd9Sstevel@tonic-gate extern sctp_t *sctp_lookup(sctp_t *, in6_addr_t *, sctp_tf_t *, uint32_t *, 11087c478bd9Sstevel@tonic-gate int); 11097c478bd9Sstevel@tonic-gate extern sctp_faddr_t *sctp_lookup_faddr(sctp_t *, in6_addr_t *); 11107c478bd9Sstevel@tonic-gate 11117c478bd9Sstevel@tonic-gate extern mblk_t *sctp_make_err(sctp_t *, uint16_t, void *, size_t); 11127c478bd9Sstevel@tonic-gate extern mblk_t *sctp_make_ftsn_chunk(sctp_t *, sctp_faddr_t *, 11137c478bd9Sstevel@tonic-gate sctp_ftsn_set_t *, uint_t, uint32_t); 11147c478bd9Sstevel@tonic-gate extern void sctp_make_ftsns(sctp_t *, mblk_t *, mblk_t *, mblk_t **, 11157c478bd9Sstevel@tonic-gate sctp_faddr_t *, uint32_t *); 11167c478bd9Sstevel@tonic-gate extern mblk_t *sctp_make_mp(sctp_t *, sctp_faddr_t *, int); 11177c478bd9Sstevel@tonic-gate extern mblk_t *sctp_make_sack(sctp_t *, sctp_faddr_t *, mblk_t *); 11187c478bd9Sstevel@tonic-gate extern void sctp_maxpsz_set(sctp_t *); 11197c478bd9Sstevel@tonic-gate extern void sctp_move_faddr_timers(queue_t *, sctp_t *); 11207c478bd9Sstevel@tonic-gate 1121f4b3ec61Sdh extern void sctp_nd_free(sctp_stack_t *); 11227c478bd9Sstevel@tonic-gate extern int sctp_nd_getset(queue_t *, MBLKP); 1123f4b3ec61Sdh extern boolean_t sctp_nd_init(sctp_stack_t *); 11247c478bd9Sstevel@tonic-gate extern sctp_parm_hdr_t *sctp_next_parm(sctp_parm_hdr_t *, ssize_t *); 11257c478bd9Sstevel@tonic-gate 11267c478bd9Sstevel@tonic-gate extern void sctp_ootb_shutdown_ack(sctp_t *, mblk_t *, uint_t); 11277c478bd9Sstevel@tonic-gate extern size_t sctp_options_param(const sctp_t *, void *, int); 11287c478bd9Sstevel@tonic-gate extern size_t sctp_options_param_len(const sctp_t *, int); 112912f47623Skcpoon extern void sctp_output(sctp_t *, uint_t); 11307c478bd9Sstevel@tonic-gate 1131f4b3ec61Sdh extern boolean_t sctp_param_register(IDP *, sctpparam_t *, int, sctp_stack_t *); 11327c478bd9Sstevel@tonic-gate extern void sctp_partial_delivery_event(sctp_t *); 11337c478bd9Sstevel@tonic-gate extern int sctp_process_cookie(sctp_t *, sctp_chunk_hdr_t *, mblk_t *, 11347c478bd9Sstevel@tonic-gate sctp_init_chunk_t **, sctp_hdr_t *, int *, in6_addr_t *); 11357f093707Skcpoon extern void sctp_process_err(sctp_t *); 11367c478bd9Sstevel@tonic-gate extern void sctp_process_heartbeat(sctp_t *, sctp_chunk_hdr_t *); 11377c478bd9Sstevel@tonic-gate extern void sctp_process_sendq(sctp_t *); 11387c478bd9Sstevel@tonic-gate extern void sctp_process_timer(sctp_t *); 11397c478bd9Sstevel@tonic-gate 11407c478bd9Sstevel@tonic-gate extern void sctp_redo_faddr_srcs(sctp_t *); 11417c478bd9Sstevel@tonic-gate extern void sctp_regift_xmitlist(sctp_t *); 11427c478bd9Sstevel@tonic-gate extern void sctp_return_heartbeat(sctp_t *, sctp_chunk_hdr_t *, mblk_t *); 11437c478bd9Sstevel@tonic-gate extern void sctp_rexmit(sctp_t *, sctp_faddr_t *); 1144769b977dSvi extern mblk_t *sctp_rexmit_packet(sctp_t *, mblk_t **, mblk_t **, 1145769b977dSvi sctp_faddr_t *, uint_t *); 11467c478bd9Sstevel@tonic-gate extern void sctp_rexmit_timer(sctp_t *, sctp_faddr_t *); 11477c478bd9Sstevel@tonic-gate extern sctp_faddr_t *sctp_rotate_faddr(sctp_t *, sctp_faddr_t *); 11487c478bd9Sstevel@tonic-gate 11497f093707Skcpoon extern boolean_t sctp_sack(sctp_t *, mblk_t *); 11507c478bd9Sstevel@tonic-gate extern int sctp_secure_restart_check(mblk_t *, sctp_chunk_hdr_t *, 1151f4b3ec61Sdh uint32_t, int, sctp_stack_t *); 11527c478bd9Sstevel@tonic-gate extern void sctp_send_abort(sctp_t *, uint32_t, uint16_t, char *, size_t, 11537c478bd9Sstevel@tonic-gate mblk_t *, int, boolean_t); 11547c478bd9Sstevel@tonic-gate extern void sctp_send_cookie_ack(sctp_t *); 11557c478bd9Sstevel@tonic-gate extern void sctp_send_cookie_echo(sctp_t *, sctp_chunk_hdr_t *, mblk_t *); 1156d7ab25acSkp extern void sctp_send_initack(sctp_t *, sctp_hdr_t *, sctp_chunk_hdr_t *, 1157d7ab25acSkp mblk_t *); 11587c478bd9Sstevel@tonic-gate extern void sctp_send_shutdown(sctp_t *, int); 11597c478bd9Sstevel@tonic-gate extern void sctp_send_heartbeat(sctp_t *, sctp_faddr_t *); 11607c478bd9Sstevel@tonic-gate extern void sctp_sendfail_event(sctp_t *, mblk_t *, int, boolean_t); 116177c67f2fSkcpoon extern void sctp_set_faddr_current(sctp_t *, sctp_faddr_t *); 116277c67f2fSkcpoon extern int sctp_set_hdraddrs(sctp_t *); 1163769b977dSvi extern void sctp_set_saddr(sctp_t *, sctp_faddr_t *); 116445916cd2Sjpk extern void sctp_sets_init(void); 116545916cd2Sjpk extern void sctp_sets_fini(void); 11667c478bd9Sstevel@tonic-gate extern void sctp_shutdown_event(sctp_t *); 11677c478bd9Sstevel@tonic-gate extern void sctp_stop_faddr_timers(sctp_t *); 116877c67f2fSkcpoon extern int sctp_shutdown_received(sctp_t *, sctp_chunk_hdr_t *, boolean_t, 116977c67f2fSkcpoon boolean_t, sctp_faddr_t *); 11707c478bd9Sstevel@tonic-gate extern void sctp_shutdown_complete(sctp_t *); 11717c478bd9Sstevel@tonic-gate extern void sctp_set_if_mtu(sctp_t *); 11727c478bd9Sstevel@tonic-gate extern void sctp_set_iplen(sctp_t *, mblk_t *); 11737c478bd9Sstevel@tonic-gate extern void sctp_set_ulp_prop(sctp_t *); 117477c67f2fSkcpoon extern void sctp_ss_rexmit(sctp_t *); 11757c478bd9Sstevel@tonic-gate extern size_t sctp_supaddr_param_len(sctp_t *); 11767c478bd9Sstevel@tonic-gate extern size_t sctp_supaddr_param(sctp_t *, uchar_t *); 11777c478bd9Sstevel@tonic-gate 11787c478bd9Sstevel@tonic-gate extern void sctp_timer(sctp_t *, mblk_t *, clock_t); 1179121e5416Skcpoon extern mblk_t *sctp_timer_alloc(sctp_t *, pfv_t, int); 11807c478bd9Sstevel@tonic-gate extern void sctp_timer_call(sctp_t *sctp, mblk_t *); 11817c478bd9Sstevel@tonic-gate extern void sctp_timer_free(mblk_t *); 11827c478bd9Sstevel@tonic-gate extern void sctp_timer_stop(mblk_t *); 11837c478bd9Sstevel@tonic-gate extern void sctp_unlink_faddr(sctp_t *, sctp_faddr_t *); 11847c478bd9Sstevel@tonic-gate 118577c67f2fSkcpoon extern void sctp_update_ire(sctp_t *sctp); 1186f4b3ec61Sdh extern in_port_t sctp_update_next_port(in_port_t, zone_t *zone, sctp_stack_t *); 11877c478bd9Sstevel@tonic-gate extern void sctp_update_rtt(sctp_t *, sctp_faddr_t *, clock_t); 1188e6f13f86SKacheong Poon extern void sctp_user_abort(sctp_t *, mblk_t *); 11897c478bd9Sstevel@tonic-gate 11907c478bd9Sstevel@tonic-gate extern void sctp_validate_peer(sctp_t *); 11917c478bd9Sstevel@tonic-gate 11927c478bd9Sstevel@tonic-gate extern void sctp_wput_ioctl(queue_t *, mblk_t *); 11937c478bd9Sstevel@tonic-gate 11947c478bd9Sstevel@tonic-gate extern int sctp_xmit_list_clean(sctp_t *, ssize_t); 11957c478bd9Sstevel@tonic-gate 11967c478bd9Sstevel@tonic-gate extern void sctp_zap_addrs(sctp_t *); 11977c478bd9Sstevel@tonic-gate extern void sctp_zap_faddrs(sctp_t *, int); 11987c478bd9Sstevel@tonic-gate 11991d8c4025Svi /* Contract private interface between SCTP and Clustering - PSARC/2005/602 */ 12001d8c4025Svi 12011d8c4025Svi extern void (*cl_sctp_listen)(sa_family_t, uchar_t *, uint_t, in_port_t); 12021d8c4025Svi extern void (*cl_sctp_unlisten)(sa_family_t, uchar_t *, uint_t, in_port_t); 12031d8c4025Svi extern void (*cl_sctp_connect)(sa_family_t, uchar_t *, uint_t, in_port_t, 12041d8c4025Svi uchar_t *, uint_t, in_port_t, boolean_t, cl_sctp_handle_t); 12051d8c4025Svi extern void (*cl_sctp_disconnect)(sa_family_t, cl_sctp_handle_t); 12061d8c4025Svi extern void (*cl_sctp_assoc_change)(sa_family_t, uchar_t *, size_t, uint_t, 12071d8c4025Svi uchar_t *, size_t, uint_t, int, cl_sctp_handle_t); 12081d8c4025Svi extern void (*cl_sctp_check_addrs)(sa_family_t, in_port_t, uchar_t **, 12091d8c4025Svi size_t, uint_t *, boolean_t); 12101d8c4025Svi 12117c478bd9Sstevel@tonic-gate /* Send a mp to IP. */ 12127c478bd9Sstevel@tonic-gate #define IP_PUT(mp, conn, isv4) \ 12137c478bd9Sstevel@tonic-gate { \ 1214f4b3ec61Sdh sctp_stack_t *sctps = conn->conn_netstack->netstack_sctp; \ 1215f4b3ec61Sdh \ 12167c478bd9Sstevel@tonic-gate if ((isv4)) \ 1217f4b3ec61Sdh ip_output((conn), (mp), WR(sctps->sctps_g_q), IP_WPUT); \ 12187c478bd9Sstevel@tonic-gate else \ 1219f4b3ec61Sdh ip_output_v6((conn), (mp), WR(sctps->sctps_g_q), IP_WPUT);\ 12207c478bd9Sstevel@tonic-gate } 12217c478bd9Sstevel@tonic-gate 12227c478bd9Sstevel@tonic-gate #define RUN_SCTP(sctp) \ 12237c478bd9Sstevel@tonic-gate { \ 12247c478bd9Sstevel@tonic-gate mutex_enter(&(sctp)->sctp_lock); \ 12257c478bd9Sstevel@tonic-gate while ((sctp)->sctp_running) \ 12267c478bd9Sstevel@tonic-gate cv_wait(&(sctp)->sctp_cv, &(sctp)->sctp_lock); \ 12277c478bd9Sstevel@tonic-gate (sctp)->sctp_running = B_TRUE; \ 12287c478bd9Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_lock); \ 12297c478bd9Sstevel@tonic-gate } 12307c478bd9Sstevel@tonic-gate 12317c478bd9Sstevel@tonic-gate /* Wake up recvq taskq */ 12327c478bd9Sstevel@tonic-gate #define WAKE_SCTP(sctp) \ 12337c478bd9Sstevel@tonic-gate { \ 12347c478bd9Sstevel@tonic-gate mutex_enter(&(sctp)->sctp_lock); \ 12357c478bd9Sstevel@tonic-gate if ((sctp)->sctp_timer_mp != NULL) \ 12367c478bd9Sstevel@tonic-gate sctp_process_timer(sctp); \ 12377c478bd9Sstevel@tonic-gate (sctp)->sctp_running = B_FALSE; \ 12387c478bd9Sstevel@tonic-gate cv_broadcast(&(sctp)->sctp_cv); \ 12397c478bd9Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_lock); \ 12407c478bd9Sstevel@tonic-gate } 12417c478bd9Sstevel@tonic-gate 12427c478bd9Sstevel@tonic-gate #ifdef __cplusplus 12437c478bd9Sstevel@tonic-gate } 12447c478bd9Sstevel@tonic-gate #endif 12457c478bd9Sstevel@tonic-gate 12467c478bd9Sstevel@tonic-gate #endif /* _INET_SCTP_SCTP_IMPL_H */ 1247