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 /* 231c25cdbdSkcpoon * Copyright 2007 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 #pragma ident "%Z%%M% %I% %E% SMI" 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate #include <sys/inttypes.h> 337c478bd9Sstevel@tonic-gate #include <sys/taskq.h> 347c478bd9Sstevel@tonic-gate #include <sys/list.h> 357c478bd9Sstevel@tonic-gate #include <sys/strsun.h> 3645916cd2Sjpk #include <sys/zone.h> 377c478bd9Sstevel@tonic-gate #include <netinet/ip6.h> 387c478bd9Sstevel@tonic-gate #include <inet/optcom.h> 397c478bd9Sstevel@tonic-gate #include <netinet/sctp.h> 407c478bd9Sstevel@tonic-gate #include <inet/sctp_itf.h> 41f4b3ec61Sdh #include "sctp_stack.h" 42f4b3ec61Sdh 43f4b3ec61Sdh #ifdef __cplusplus 44f4b3ec61Sdh extern "C" { 45f4b3ec61Sdh #endif 467c478bd9Sstevel@tonic-gate 477c478bd9Sstevel@tonic-gate /* Streams device identifying info and version */ 487c478bd9Sstevel@tonic-gate #define SCTP_DEV_IDINFO "SCTP Streams device 1.0" 497c478bd9Sstevel@tonic-gate 507c478bd9Sstevel@tonic-gate #define SSN_GT(a, b) ((int16_t)((a)-(b)) > 0) 517c478bd9Sstevel@tonic-gate #define SSN_GE(a, b) ((int16_t)((a)-(b)) >= 0) 527c478bd9Sstevel@tonic-gate 537c478bd9Sstevel@tonic-gate /* Default buffer size and flow control wake up threshold. */ 547c478bd9Sstevel@tonic-gate #define SCTP_XMIT_LOWATER 8192 557c478bd9Sstevel@tonic-gate #define SCTP_XMIT_HIWATER 102400 567c478bd9Sstevel@tonic-gate #define SCTP_RECV_LOWATER 8192 577c478bd9Sstevel@tonic-gate #define SCTP_RECV_HIWATER 102400 587c478bd9Sstevel@tonic-gate 597c478bd9Sstevel@tonic-gate /* SCTP Timer control structure */ 607c478bd9Sstevel@tonic-gate typedef struct sctpt_s { 617c478bd9Sstevel@tonic-gate pfv_t sctpt_pfv; /* The routine we are to call */ 627c478bd9Sstevel@tonic-gate struct sctp_s *sctpt_sctp; /* The parameter we are to pass in */ 637c478bd9Sstevel@tonic-gate struct sctp_faddr_s *sctpt_faddr; 647c478bd9Sstevel@tonic-gate } sctpt_t; 657c478bd9Sstevel@tonic-gate 667c478bd9Sstevel@tonic-gate /* 677c478bd9Sstevel@tonic-gate * Maximum number of duplicate TSNs we can report. This is currently 687c478bd9Sstevel@tonic-gate * static, and governs the size of the mblk used to hold the duplicate 697c478bd9Sstevel@tonic-gate * reports. The use of duplcate TSN reports is currently experimental, 707c478bd9Sstevel@tonic-gate * so for now a static limit should suffice. 717c478bd9Sstevel@tonic-gate */ 727c478bd9Sstevel@tonic-gate #define SCTP_DUP_MBLK_SZ 64 737c478bd9Sstevel@tonic-gate 747c478bd9Sstevel@tonic-gate #define SCTP_IS_ADDR_UNSPEC(isv4, addr) \ 757c478bd9Sstevel@tonic-gate ((isv4) ? IN6_IS_ADDR_V4MAPPED_ANY(&(addr)) : \ 767c478bd9Sstevel@tonic-gate IN6_IS_ADDR_UNSPECIFIED(&(addr))) 777c478bd9Sstevel@tonic-gate 787c478bd9Sstevel@tonic-gate /* 797c478bd9Sstevel@tonic-gate * SCTP parameters 807c478bd9Sstevel@tonic-gate */ 817c478bd9Sstevel@tonic-gate /* Named Dispatch Parameter Management Structure */ 827c478bd9Sstevel@tonic-gate typedef struct sctpparam_s { 837c478bd9Sstevel@tonic-gate uint32_t sctp_param_min; 847c478bd9Sstevel@tonic-gate uint32_t sctp_param_max; 857c478bd9Sstevel@tonic-gate uint32_t sctp_param_val; 867c478bd9Sstevel@tonic-gate char *sctp_param_name; 877c478bd9Sstevel@tonic-gate } sctpparam_t; 887c478bd9Sstevel@tonic-gate 89f4b3ec61Sdh #define sctps_max_init_retr sctps_params[0].sctp_param_val 90f4b3ec61Sdh #define sctps_max_init_retr_high sctps_params[0].sctp_param_max 91f4b3ec61Sdh #define sctps_max_init_retr_low sctps_params[0].sctp_param_min 92f4b3ec61Sdh #define sctps_pa_max_retr sctps_params[1].sctp_param_val 93f4b3ec61Sdh #define sctps_pa_max_retr_high sctps_params[1].sctp_param_max 94f4b3ec61Sdh #define sctps_pa_max_retr_low sctps_params[1].sctp_param_min 95f4b3ec61Sdh #define sctps_pp_max_retr sctps_params[2].sctp_param_val 96f4b3ec61Sdh #define sctps_pp_max_retr_high sctps_params[2].sctp_param_max 97f4b3ec61Sdh #define sctps_pp_max_retr_low sctps_params[2].sctp_param_min 98f4b3ec61Sdh #define sctps_cwnd_max_ sctps_params[3].sctp_param_val 99f4b3ec61Sdh #define __sctps_not_used1 sctps_params[4].sctp_param_val 100f4b3ec61Sdh #define sctps_smallest_nonpriv_port sctps_params[5].sctp_param_val 101f4b3ec61Sdh #define sctps_ipv4_ttl sctps_params[6].sctp_param_val 102f4b3ec61Sdh #define sctps_heartbeat_interval sctps_params[7].sctp_param_val 103f4b3ec61Sdh #define sctps_heartbeat_interval_high sctps_params[7].sctp_param_max 104f4b3ec61Sdh #define sctps_heartbeat_interval_low sctps_params[7].sctp_param_min 105f4b3ec61Sdh #define sctps_initial_mtu sctps_params[8].sctp_param_val 106f4b3ec61Sdh #define sctps_mtu_probe_interval sctps_params[9].sctp_param_val 107f4b3ec61Sdh #define sctps_new_secret_interval sctps_params[10].sctp_param_val 108f4b3ec61Sdh #define sctps_deferred_ack_interval sctps_params[11].sctp_param_val 109f4b3ec61Sdh #define sctps_snd_lowat_fraction sctps_params[12].sctp_param_val 110f4b3ec61Sdh #define sctps_ignore_path_mtu sctps_params[13].sctp_param_val 111f4b3ec61Sdh #define sctps_initial_ssthresh sctps_params[14].sctp_param_val 112f4b3ec61Sdh #define sctps_smallest_anon_port sctps_params[15].sctp_param_val 113f4b3ec61Sdh #define sctps_largest_anon_port sctps_params[16].sctp_param_val 114f4b3ec61Sdh #define sctps_xmit_hiwat sctps_params[17].sctp_param_val 115f4b3ec61Sdh #define sctps_xmit_lowat sctps_params[18].sctp_param_val 116f4b3ec61Sdh #define sctps_recv_hiwat sctps_params[19].sctp_param_val 117f4b3ec61Sdh #define sctps_max_buf sctps_params[20].sctp_param_val 118f4b3ec61Sdh #define sctps_rtt_updates sctps_params[21].sctp_param_val 119f4b3ec61Sdh #define sctps_ipv6_hoplimit sctps_params[22].sctp_param_val 120f4b3ec61Sdh #define sctps_rto_ming sctps_params[23].sctp_param_val 121f4b3ec61Sdh #define sctps_rto_ming_high sctps_params[23].sctp_param_max 122f4b3ec61Sdh #define sctps_rto_ming_low sctps_params[23].sctp_param_min 123f4b3ec61Sdh #define sctps_rto_maxg sctps_params[24].sctp_param_val 124f4b3ec61Sdh #define sctps_rto_maxg_high sctps_params[24].sctp_param_max 125f4b3ec61Sdh #define sctps_rto_maxg_low sctps_params[24].sctp_param_min 126f4b3ec61Sdh #define sctps_rto_initialg sctps_params[25].sctp_param_val 127f4b3ec61Sdh #define sctps_rto_initialg_high sctps_params[25].sctp_param_max 128f4b3ec61Sdh #define sctps_rto_initialg_low sctps_params[25].sctp_param_min 129f4b3ec61Sdh #define sctps_cookie_life sctps_params[26].sctp_param_val 130f4b3ec61Sdh #define sctps_cookie_life_high sctps_params[26].sctp_param_max 131f4b3ec61Sdh #define sctps_cookie_life_low sctps_params[26].sctp_param_min 132f4b3ec61Sdh #define sctps_max_in_streams sctps_params[27].sctp_param_val 133f4b3ec61Sdh #define sctps_max_in_streams_high sctps_params[27].sctp_param_max 134f4b3ec61Sdh #define sctps_max_in_streams_low sctps_params[27].sctp_param_min 135f4b3ec61Sdh #define sctps_initial_out_streams sctps_params[28].sctp_param_val 136f4b3ec61Sdh #define sctps_initial_out_streams_high sctps_params[28].sctp_param_max 137f4b3ec61Sdh #define sctps_initial_out_streams_low sctps_params[28].sctp_param_min 138f4b3ec61Sdh #define sctps_shutack_wait_bound sctps_params[29].sctp_param_val 139f4b3ec61Sdh #define sctps_maxburst sctps_params[30].sctp_param_val 140f4b3ec61Sdh #define sctps_addip_enabled sctps_params[31].sctp_param_val 141f4b3ec61Sdh #define sctps_recv_hiwat_minmss sctps_params[32].sctp_param_val 142f4b3ec61Sdh #define sctps_slow_start_initial sctps_params[33].sctp_param_val 143f4b3ec61Sdh #define sctps_slow_start_after_idle sctps_params[34].sctp_param_val 144f4b3ec61Sdh #define sctps_prsctp_enabled sctps_params[35].sctp_param_val 145f4b3ec61Sdh #define sctps_fast_rxt_thresh sctps_params[36].sctp_param_val 146f4b3ec61Sdh #define sctps_deferred_acks_max sctps_params[37].sctp_param_val 147f4b3ec61Sdh 1487c478bd9Sstevel@tonic-gate /* 1497c478bd9Sstevel@tonic-gate * sctp_wroff_xtra is the extra space in front of SCTP/IP header for link 1507c478bd9Sstevel@tonic-gate * layer header. It has to be a multiple of 4. 1517c478bd9Sstevel@tonic-gate */ 152f4b3ec61Sdh #define sctps_wroff_xtra sctps_wroff_xtra_param->sctp_param_val 1537c478bd9Sstevel@tonic-gate 15477c67f2fSkcpoon /* 15577c67f2fSkcpoon * Retransmission timer start and stop macro for a given faddr. 15677c67f2fSkcpoon */ 15777c67f2fSkcpoon #define SCTP_FADDR_TIMER_RESTART(sctp, fp, intvl) \ 15877c67f2fSkcpoon { \ 15977c67f2fSkcpoon dprint(3, ("faddr_timer_restart: fp=%p %x:%x:%x:%x %d\n", \ 16077c67f2fSkcpoon (void *)(fp), SCTP_PRINTADDR((fp)->faddr), (int)(intvl))); \ 16177c67f2fSkcpoon sctp_timer((sctp), (fp)->timer_mp, (intvl)); \ 16277c67f2fSkcpoon (fp)->timer_running = 1; \ 16377c67f2fSkcpoon } 16477c67f2fSkcpoon 16577c67f2fSkcpoon #define SCTP_FADDR_TIMER_STOP(fp) \ 16677c67f2fSkcpoon ASSERT((fp)->timer_mp != NULL); \ 16777c67f2fSkcpoon if ((fp)->timer_running) { \ 16877c67f2fSkcpoon sctp_timer_stop((fp)->timer_mp); \ 16977c67f2fSkcpoon (fp)->timer_running = 0; \ 17077c67f2fSkcpoon } 17177c67f2fSkcpoon 17277c67f2fSkcpoon #define SCTP_CALC_RXT(fp, max) \ 17377c67f2fSkcpoon { \ 17477c67f2fSkcpoon if (((fp)->rto <<= 1) > (max)) \ 17577c67f2fSkcpoon (fp)->rto = (max); \ 17677c67f2fSkcpoon } 17777c67f2fSkcpoon 17877c67f2fSkcpoon 1797c478bd9Sstevel@tonic-gate #define SCTP_MAX_COMBINED_HEADER_LENGTH (60 + 12) /* Maxed out ip + sctp */ 1807c478bd9Sstevel@tonic-gate #define SCTP_MAX_IP_OPTIONS_LENGTH (60 - IP_SIMPLE_HDR_LENGTH) 1817c478bd9Sstevel@tonic-gate #define SCTP_MAX_HDR_LENGTH 60 1827c478bd9Sstevel@tonic-gate 1837c478bd9Sstevel@tonic-gate #define SCTP_SECRET_LEN 16 1847c478bd9Sstevel@tonic-gate 1857c478bd9Sstevel@tonic-gate #define SCTP_REFHOLD(sctp) { \ 1867c478bd9Sstevel@tonic-gate mutex_enter(&(sctp)->sctp_reflock); \ 1877c478bd9Sstevel@tonic-gate (sctp)->sctp_refcnt++; \ 1887c478bd9Sstevel@tonic-gate ASSERT((sctp)->sctp_refcnt != 0); \ 1897c478bd9Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_reflock); \ 1907c478bd9Sstevel@tonic-gate } 1917c478bd9Sstevel@tonic-gate 1927c478bd9Sstevel@tonic-gate #define SCTP_REFRELE(sctp) { \ 1937c478bd9Sstevel@tonic-gate mutex_enter(&(sctp)->sctp_reflock); \ 1947c478bd9Sstevel@tonic-gate ASSERT((sctp)->sctp_refcnt != 0); \ 1957c478bd9Sstevel@tonic-gate if (--(sctp)->sctp_refcnt == 0) { \ 1967c478bd9Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_reflock); \ 1977c478bd9Sstevel@tonic-gate CONN_DEC_REF((sctp)->sctp_connp); \ 1987c478bd9Sstevel@tonic-gate } else { \ 1997c478bd9Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_reflock); \ 2007c478bd9Sstevel@tonic-gate } \ 2017c478bd9Sstevel@tonic-gate } 2027c478bd9Sstevel@tonic-gate 203f4b3ec61Sdh #define SCTP_G_Q_REFHOLD(sctps) { \ 204f4b3ec61Sdh atomic_add_32(&(sctps)->sctps_g_q_ref, 1); \ 205f4b3ec61Sdh ASSERT((sctps)->sctps_g_q_ref != 0); \ 206f4b3ec61Sdh DTRACE_PROBE1(sctp__g__q__refhold, sctp_stack_t, sctps); \ 207f4b3ec61Sdh } 208f4b3ec61Sdh 209f4b3ec61Sdh /* 210f4b3ec61Sdh * Decrement the reference count on sctp_g_q 211f4b3ec61Sdh * In architectures e.g sun4u, where atomic_add_32_nv is just 212f4b3ec61Sdh * a cas, we need to maintain the right memory barrier semantics 213f4b3ec61Sdh * as that of mutex_exit i.e all the loads and stores should complete 214f4b3ec61Sdh * before the cas is executed. membar_exit() does that here. 215f4b3ec61Sdh */ 216f4b3ec61Sdh #define SCTP_G_Q_REFRELE(sctps) { \ 217f4b3ec61Sdh ASSERT((sctps)->sctps_g_q_ref != 0); \ 218f4b3ec61Sdh membar_exit(); \ 219f4b3ec61Sdh DTRACE_PROBE1(sctp__g__q__refrele, sctp_stack_t, sctps); \ 220f4b3ec61Sdh if (atomic_add_32_nv(&(sctps)->sctps_g_q_ref, -1) == 0) \ 221f4b3ec61Sdh sctp_g_q_inactive(sctps); \ 222f4b3ec61Sdh } 223f4b3ec61Sdh 2247c478bd9Sstevel@tonic-gate #define SCTP_PRINTADDR(a) (a).s6_addr32[0], (a).s6_addr32[1],\ 2257c478bd9Sstevel@tonic-gate (a).s6_addr32[2], (a).s6_addr32[3] 2267c478bd9Sstevel@tonic-gate 2277c478bd9Sstevel@tonic-gate #define CONN2SCTP(conn) ((sctp_t *)(&((conn_t *)conn)[1])) 2287c478bd9Sstevel@tonic-gate 2297c478bd9Sstevel@tonic-gate /* 2307c478bd9Sstevel@tonic-gate * Outbound data, flags and macros for per-message, per-chunk info 2317c478bd9Sstevel@tonic-gate */ 2327c478bd9Sstevel@tonic-gate typedef struct { 2337c478bd9Sstevel@tonic-gate int64_t smh_ttl; /* Time to Live */ 2347c478bd9Sstevel@tonic-gate int64_t smh_tob; /* Time of Birth */ 2357c478bd9Sstevel@tonic-gate uint32_t smh_context; 2367c478bd9Sstevel@tonic-gate uint16_t smh_sid; 2377c478bd9Sstevel@tonic-gate uint16_t smh_ssn; 2387c478bd9Sstevel@tonic-gate uint32_t smh_ppid; 2397c478bd9Sstevel@tonic-gate uint16_t smh_flags; 2407c478bd9Sstevel@tonic-gate uint32_t smh_msglen; 2417c478bd9Sstevel@tonic-gate } sctp_msg_hdr_t; 2427c478bd9Sstevel@tonic-gate 2437c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_FLAG_SENT 0x01 2447c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_FLAG_REXMIT 0x02 2457c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_FLAG_ACKED 0x04 2467c478bd9Sstevel@tonic-gate #define SCTP_MSG_FLAG_CHUNKED 0x08 2477c478bd9Sstevel@tonic-gate #define SCTP_MSG_FLAG_ABANDONED 0x10 2487c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_FLAG_ABANDONED 0x20 2497c478bd9Sstevel@tonic-gate 2507c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_CLEAR_FLAGS(mp) ((mp)->b_flag = 0) 2517c478bd9Sstevel@tonic-gate /* 2527c478bd9Sstevel@tonic-gate * If we are transmitting the chunk for the first time we assign the TSN and 2537c478bd9Sstevel@tonic-gate * SSN here. The reason we assign the SSN here (as opposed to doing it in 2547c478bd9Sstevel@tonic-gate * sctp_chunkify()) is that the chunk may expire, if PRSCTP is enabled, before 2557c478bd9Sstevel@tonic-gate * we get a chance to send it out. If we assign the SSN in sctp_chunkify() 2567c478bd9Sstevel@tonic-gate * and this happens, then we need to send a Forward TSN to the peer, which 2577c478bd9Sstevel@tonic-gate * will be expecting this SSN, assuming ordered. If we assign it here we 2587c478bd9Sstevel@tonic-gate * can just take out the chunk from the transmit list without having to 2597c478bd9Sstevel@tonic-gate * send a Forward TSN chunk. While assigning the SSN we use (meta)->b_cont 2607c478bd9Sstevel@tonic-gate * to determine if it needs a new SSN (i.e. the next SSN for the stream), 2617c478bd9Sstevel@tonic-gate * since (meta)->b_cont signifies the first chunk of a message (if the message 2627c478bd9Sstevel@tonic-gate * is unordered, then the SSN is 0). 2637c478bd9Sstevel@tonic-gate * 2647c478bd9Sstevel@tonic-gate */ 2657c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_SENT(sctp, mp, sdc, fp, chunkdata, meta) { \ 2667c478bd9Sstevel@tonic-gate if (!SCTP_CHUNK_ISSENT(mp)) { \ 2677c478bd9Sstevel@tonic-gate sctp_msg_hdr_t *mhdr = (sctp_msg_hdr_t *)(meta)->b_rptr; \ 2687c478bd9Sstevel@tonic-gate ASSERT(!SCTP_CHUNK_ABANDONED(mp)); \ 2697c478bd9Sstevel@tonic-gate (mp)->b_flag = SCTP_CHUNK_FLAG_SENT; \ 2707c478bd9Sstevel@tonic-gate (sdc)->sdh_tsn = htonl((sctp)->sctp_ltsn++); \ 2717c478bd9Sstevel@tonic-gate if ((mhdr)->smh_flags & MSG_UNORDERED) { \ 2727c478bd9Sstevel@tonic-gate (sdc)->sdh_ssn = 0; \ 2737c478bd9Sstevel@tonic-gate SCTP_DATA_SET_UBIT(sdc); \ 2747c478bd9Sstevel@tonic-gate BUMP_LOCAL((sctp)->sctp_oudchunks); \ 2757c478bd9Sstevel@tonic-gate } else { \ 2767c478bd9Sstevel@tonic-gate BUMP_LOCAL((sctp)->sctp_odchunks); \ 2777c478bd9Sstevel@tonic-gate if ((mp) == (meta)->b_cont) { \ 2787c478bd9Sstevel@tonic-gate mhdr->smh_ssn = htons( \ 2797c478bd9Sstevel@tonic-gate (sctp)->sctp_ostrcntrs[mhdr->smh_sid]++); \ 2807c478bd9Sstevel@tonic-gate } \ 2817c478bd9Sstevel@tonic-gate (sdc)->sdh_ssn = mhdr->smh_ssn; \ 2827c478bd9Sstevel@tonic-gate } \ 2837c478bd9Sstevel@tonic-gate (sctp)->sctp_unacked += (chunkdata); \ 2847c478bd9Sstevel@tonic-gate (sctp)->sctp_unsent -= (chunkdata); \ 2857c478bd9Sstevel@tonic-gate (sctp)->sctp_frwnd -= (chunkdata); \ 2867c478bd9Sstevel@tonic-gate } else { \ 2877c478bd9Sstevel@tonic-gate if (SCTP_CHUNK_ISACKED(mp)) { \ 2887c478bd9Sstevel@tonic-gate (sctp)->sctp_unacked += (chunkdata); \ 2897c478bd9Sstevel@tonic-gate } else { \ 2907c478bd9Sstevel@tonic-gate ASSERT(SCTP_CHUNK_DEST(mp)->suna >= ((chunkdata) + \ 2917c478bd9Sstevel@tonic-gate sizeof (*sdc))); \ 2927c478bd9Sstevel@tonic-gate SCTP_CHUNK_DEST(mp)->suna -= ((chunkdata) + \ 2937c478bd9Sstevel@tonic-gate sizeof (*sdc)); \ 2947c478bd9Sstevel@tonic-gate } \ 2957c478bd9Sstevel@tonic-gate (mp)->b_flag &= ~(SCTP_CHUNK_FLAG_REXMIT | \ 2967c478bd9Sstevel@tonic-gate SCTP_CHUNK_FLAG_ACKED); \ 2977c478bd9Sstevel@tonic-gate SCTP_CHUNK_SET_SACKCNT(mp, 0); \ 2987c478bd9Sstevel@tonic-gate BUMP_LOCAL(sctp->sctp_rxtchunks); \ 2997c478bd9Sstevel@tonic-gate BUMP_LOCAL((sctp)->sctp_T3expire); \ 3007c478bd9Sstevel@tonic-gate BUMP_LOCAL((fp)->T3expire); \ 3017c478bd9Sstevel@tonic-gate } \ 3027c478bd9Sstevel@tonic-gate SCTP_SET_CHUNK_DEST(mp, fp); \ 3037c478bd9Sstevel@tonic-gate (fp)->suna += ((chunkdata) + sizeof (*sdc)); \ 3047c478bd9Sstevel@tonic-gate } 3057c478bd9Sstevel@tonic-gate 3067c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_ISSENT(mp) ((mp)->b_flag & SCTP_CHUNK_FLAG_SENT) 3077c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_CANSEND(mp) \ 3087c478bd9Sstevel@tonic-gate (!(SCTP_CHUNK_ABANDONED(mp)) && \ 3097c478bd9Sstevel@tonic-gate (((mp)->b_flag & (SCTP_CHUNK_FLAG_REXMIT|SCTP_CHUNK_FLAG_SENT)) != \ 3107c478bd9Sstevel@tonic-gate SCTP_CHUNK_FLAG_SENT)) 3117c478bd9Sstevel@tonic-gate 3127c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_DEST(mp) ((sctp_faddr_t *)(mp)->b_queue) 3137c478bd9Sstevel@tonic-gate #define SCTP_SET_CHUNK_DEST(mp, fp) ((mp)->b_queue = (queue_t *)fp) 3147c478bd9Sstevel@tonic-gate 3157c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_REXMIT(mp) ((mp)->b_flag |= SCTP_CHUNK_FLAG_REXMIT) 3167c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_CLEAR_REXMIT(mp) ((mp)->b_flag &= ~SCTP_CHUNK_FLAG_REXMIT) 3177c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_WANT_REXMIT(mp) ((mp)->b_flag & SCTP_CHUNK_FLAG_REXMIT) 3187c478bd9Sstevel@tonic-gate 3197c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_ACKED(mp) \ 3207c478bd9Sstevel@tonic-gate ((mp)->b_flag = (SCTP_CHUNK_FLAG_SENT|SCTP_CHUNK_FLAG_ACKED)) 3217c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_ISACKED(mp) ((mp)->b_flag & SCTP_CHUNK_FLAG_ACKED) 3227c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_CLEAR_ACKED(mp) ((mp)->b_flag &= ~SCTP_CHUNK_FLAG_ACKED) 3237c478bd9Sstevel@tonic-gate 3247c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_SACKCNT(mp) ((intptr_t)((mp)->b_prev)) 3257c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_SET_SACKCNT(mp, val) ((mp)->b_prev = \ 3267c478bd9Sstevel@tonic-gate (mblk_t *)(uintptr_t)(val)) 3277c478bd9Sstevel@tonic-gate 3287c478bd9Sstevel@tonic-gate #define SCTP_MSG_SET_CHUNKED(mp) ((mp)->b_flag |= SCTP_MSG_FLAG_CHUNKED) 3297c478bd9Sstevel@tonic-gate #define SCTP_MSG_CLEAR_CHUNKED(mp)((mp)->b_flag &= ~SCTP_MSG_FLAG_CHUNKED) 3307c478bd9Sstevel@tonic-gate #define SCTP_IS_MSG_CHUNKED(mp) ((mp)->b_flag & SCTP_MSG_FLAG_CHUNKED) 3317c478bd9Sstevel@tonic-gate 3327c478bd9Sstevel@tonic-gate /* For PR-SCTP */ 3337c478bd9Sstevel@tonic-gate #define SCTP_ABANDON_CHUNK(mp) ((mp)->b_flag |= SCTP_CHUNK_FLAG_ABANDONED) 3347c478bd9Sstevel@tonic-gate #define SCTP_CHUNK_ABANDONED(mp) \ 3357c478bd9Sstevel@tonic-gate ((mp)->b_flag & SCTP_CHUNK_FLAG_ABANDONED) 3367c478bd9Sstevel@tonic-gate 3377c478bd9Sstevel@tonic-gate #define SCTP_MSG_SET_ABANDONED(mp) \ 3387c478bd9Sstevel@tonic-gate ((mp)->b_flag |= SCTP_MSG_FLAG_ABANDONED) 3397c478bd9Sstevel@tonic-gate #define SCTP_MSG_CLEAR_ABANDONED(mp)((mp)->b_flag &= ~SCTP_MSG_FLAG_ABANDONED) 3407c478bd9Sstevel@tonic-gate #define SCTP_IS_MSG_ABANDONED(mp) ((mp)->b_flag & SCTP_MSG_FLAG_ABANDONED) 3417c478bd9Sstevel@tonic-gate 3427c478bd9Sstevel@tonic-gate /* 3437c478bd9Sstevel@tonic-gate * Check if a message has expired. A message is expired if 3447c478bd9Sstevel@tonic-gate * 1. It has a non-zero time to live value and has not been sent before 3457c478bd9Sstevel@tonic-gate * that time expires. 3467c478bd9Sstevel@tonic-gate * 2. It is sent using PRSCTP and it has not been SACK'ed before 3477c478bd9Sstevel@tonic-gate * its lifetime expires. 3487c478bd9Sstevel@tonic-gate */ 3497c478bd9Sstevel@tonic-gate #define SCTP_MSG_TO_BE_ABANDONED(meta, mhdr, sctp) \ 3507c478bd9Sstevel@tonic-gate (((!SCTP_CHUNK_ISSENT((meta)->b_cont) && (mhdr)->smh_ttl > 0) || \ 3517c478bd9Sstevel@tonic-gate ((sctp)->sctp_prsctp_aware && ((mhdr)->smh_flags & MSG_PR_SCTP))) && \ 3527c478bd9Sstevel@tonic-gate ((lbolt64 - (mhdr)->smh_tob) > (mhdr)->smh_ttl)) 3537c478bd9Sstevel@tonic-gate 3547c478bd9Sstevel@tonic-gate /* SCTP association hash function. */ 355f4b3ec61Sdh #define SCTP_CONN_HASH(sctps, ports) \ 356f4b3ec61Sdh ((((ports) ^ ((ports) >> 16)) * 31) & \ 357f4b3ec61Sdh ((sctps)->sctps_conn_hash_size - 1)) 3587c478bd9Sstevel@tonic-gate 3597c478bd9Sstevel@tonic-gate /* 3607c478bd9Sstevel@tonic-gate * Bind hash array size and hash function. The size must be a power 3617c478bd9Sstevel@tonic-gate * of 2 and lport must be in host byte order. 3627c478bd9Sstevel@tonic-gate */ 3637c478bd9Sstevel@tonic-gate #define SCTP_BIND_FANOUT_SIZE 2048 3647c478bd9Sstevel@tonic-gate #define SCTP_BIND_HASH(lport) (((lport) * 31) & (SCTP_BIND_FANOUT_SIZE - 1)) 3657c478bd9Sstevel@tonic-gate 3667c478bd9Sstevel@tonic-gate /* options that SCTP negotiates during association establishment */ 3677c478bd9Sstevel@tonic-gate #define SCTP_PRSCTP_OPTION 0x01 3687c478bd9Sstevel@tonic-gate 3697c478bd9Sstevel@tonic-gate /* 3707c478bd9Sstevel@tonic-gate * Listener hash array size and hash function. The size must be a power 3717c478bd9Sstevel@tonic-gate * of 2 and lport must be in host byte order. 3727c478bd9Sstevel@tonic-gate */ 3737c478bd9Sstevel@tonic-gate #define SCTP_LISTEN_FANOUT_SIZE 512 3747c478bd9Sstevel@tonic-gate #define SCTP_LISTEN_HASH(lport) (((lport) * 31) & (SCTP_LISTEN_FANOUT_SIZE - 1)) 3757c478bd9Sstevel@tonic-gate 3767c478bd9Sstevel@tonic-gate typedef struct sctp_tf_s { 3777c478bd9Sstevel@tonic-gate struct sctp_s *tf_sctp; 3787c478bd9Sstevel@tonic-gate kmutex_t tf_lock; 3797c478bd9Sstevel@tonic-gate } sctp_tf_t; 3807c478bd9Sstevel@tonic-gate 3817c478bd9Sstevel@tonic-gate /* Round up the value to the nearest mss. */ 3827c478bd9Sstevel@tonic-gate #define MSS_ROUNDUP(value, mss) ((((value) - 1) / (mss) + 1) * (mss)) 3837c478bd9Sstevel@tonic-gate 3847c478bd9Sstevel@tonic-gate extern sin_t sctp_sin_null; /* Zero address for quick clears */ 3857c478bd9Sstevel@tonic-gate extern sin6_t sctp_sin6_null; /* Zero address for quick clears */ 3867c478bd9Sstevel@tonic-gate 3877c478bd9Sstevel@tonic-gate #define SCTP_IS_DETACHED(sctp) ((sctp)->sctp_detached) 3887c478bd9Sstevel@tonic-gate 3897c478bd9Sstevel@tonic-gate /* 3907c478bd9Sstevel@tonic-gate * Object to represent database of options to search passed to 3917c478bd9Sstevel@tonic-gate * {sock,tpi}optcom_req() interface routine to take care of option 3927c478bd9Sstevel@tonic-gate * management and associated methods. 3937c478bd9Sstevel@tonic-gate * XXX These and other externs should ideally move to a SCTP header 3947c478bd9Sstevel@tonic-gate */ 3957c478bd9Sstevel@tonic-gate extern optdb_obj_t sctp_opt_obj; 3967c478bd9Sstevel@tonic-gate extern uint_t sctp_max_optbuf_len; 3977c478bd9Sstevel@tonic-gate 3987c478bd9Sstevel@tonic-gate /* Data structure used to track received TSNs */ 3997c478bd9Sstevel@tonic-gate typedef struct sctp_set_s { 4007c478bd9Sstevel@tonic-gate struct sctp_set_s *next; 4017c478bd9Sstevel@tonic-gate struct sctp_set_s *prev; 4027c478bd9Sstevel@tonic-gate uint32_t begin; 4037c478bd9Sstevel@tonic-gate uint32_t end; 4047c478bd9Sstevel@tonic-gate } sctp_set_t; 4057c478bd9Sstevel@tonic-gate 4067c478bd9Sstevel@tonic-gate /* Data structure used to track TSNs for PR-SCTP */ 4077c478bd9Sstevel@tonic-gate typedef struct sctp_ftsn_set_s { 4087c478bd9Sstevel@tonic-gate struct sctp_ftsn_set_s *next; 4097c478bd9Sstevel@tonic-gate ftsn_entry_t ftsn_entries; 4107c478bd9Sstevel@tonic-gate } sctp_ftsn_set_t; 4117c478bd9Sstevel@tonic-gate 4127c478bd9Sstevel@tonic-gate /* Data structure used to track incoming SCTP streams */ 4137c478bd9Sstevel@tonic-gate typedef struct sctp_instr_s { 4147c478bd9Sstevel@tonic-gate mblk_t *istr_msgs; 4157c478bd9Sstevel@tonic-gate int istr_nmsgs; 4167c478bd9Sstevel@tonic-gate uint16_t nextseq; 4177c478bd9Sstevel@tonic-gate struct sctp_s *sctp; 4187c478bd9Sstevel@tonic-gate mblk_t *istr_reass; 4197c478bd9Sstevel@tonic-gate } sctp_instr_t; 4207c478bd9Sstevel@tonic-gate 4217c478bd9Sstevel@tonic-gate /* Reassembly data structure (per-stream) */ 4227c478bd9Sstevel@tonic-gate typedef struct sctp_reass_s { 4237c478bd9Sstevel@tonic-gate uint16_t ssn; 4247c478bd9Sstevel@tonic-gate uint16_t needed; 4257c478bd9Sstevel@tonic-gate uint16_t got; 426*7d546a59Svi uint16_t msglen; /* len of consecutive fragments */ 427*7d546a59Svi /* from the begining (B-bit) */ 4287c478bd9Sstevel@tonic-gate mblk_t *tail; 429*7d546a59Svi boolean_t hasBchunk; /* If the fragment list begins with */ 430*7d546a59Svi /* a B-bit set chunk */ 431*7d546a59Svi uint32_t nexttsn; /* TSN of the next fragment we */ 432*7d546a59Svi /* are expecting */ 4337c478bd9Sstevel@tonic-gate boolean_t partial_delivered; 4347c478bd9Sstevel@tonic-gate } sctp_reass_t; 4357c478bd9Sstevel@tonic-gate 4367c478bd9Sstevel@tonic-gate /* debugging */ 4377c478bd9Sstevel@tonic-gate #undef dprint 43845916cd2Sjpk #ifdef DEBUG 4397c478bd9Sstevel@tonic-gate extern int sctpdebug; 4407c478bd9Sstevel@tonic-gate #define dprint(level, args) { if (sctpdebug > (level)) printf args; } 44145916cd2Sjpk #else 4427c478bd9Sstevel@tonic-gate #define dprint(level, args) {} 44345916cd2Sjpk #endif 4447c478bd9Sstevel@tonic-gate 4457c478bd9Sstevel@tonic-gate 4467c478bd9Sstevel@tonic-gate /* Peer address tracking */ 4477c478bd9Sstevel@tonic-gate 4487c478bd9Sstevel@tonic-gate /* 4497c478bd9Sstevel@tonic-gate * States for peer addresses 4507c478bd9Sstevel@tonic-gate * 4517c478bd9Sstevel@tonic-gate * SCTP_FADDRS_UNCONFIRMED: we have not communicated with this peer address 4527c478bd9Sstevel@tonic-gate * before, mark it as unconfirmed so that we will not send data to it. 4537c478bd9Sstevel@tonic-gate * All addresses initially are in unconfirmed state and required 4547c478bd9Sstevel@tonic-gate * validation. SCTP sends a heartbeat to each of them and when it gets 4557c478bd9Sstevel@tonic-gate * back a heartbeat ACK, the address will be marked as alive. This 4567c478bd9Sstevel@tonic-gate * validation fixes a security issue with multihoming. If an attacker 4577c478bd9Sstevel@tonic-gate * establishes an association with us and tells us that it has addresses 4587c478bd9Sstevel@tonic-gate * belonging to another host A, this will prevent A from communicating 4597c478bd9Sstevel@tonic-gate * with us. This is fixed by peer address validation. In the above case, 4607c478bd9Sstevel@tonic-gate * A will respond with an abort. 4617c478bd9Sstevel@tonic-gate * 4627c478bd9Sstevel@tonic-gate * SCTP_FADDRS_ALIVE: this peer address is alive and we can communicate with 4637c478bd9Sstevel@tonic-gate * it with no problem. 4647c478bd9Sstevel@tonic-gate * 4657c478bd9Sstevel@tonic-gate * SCTP_FADDRS_DOWN: we have exceeded the retransmission limit to this 4667c478bd9Sstevel@tonic-gate * peer address. Once an address is marked down, we will only send 4677c478bd9Sstevel@tonic-gate * a heartbeat to it every hb_interval in case it becomes alive now. 4687c478bd9Sstevel@tonic-gate * 4697c478bd9Sstevel@tonic-gate * SCTP_FADDRS_UNREACH: there is no suitable source address to send to 4707c478bd9Sstevel@tonic-gate * this peer address. For example, the peer address is v6 but we only 4717c478bd9Sstevel@tonic-gate * have v4 addresses. It is marked unreachable until there is an 4727c478bd9Sstevel@tonic-gate * address configuration change. At that time, mark these addresses 4737c478bd9Sstevel@tonic-gate * as unconfirmed and try again to see if those unreachable addresses 4747c478bd9Sstevel@tonic-gate * are OK as we may have more source addresses. 4757c478bd9Sstevel@tonic-gate */ 4767c478bd9Sstevel@tonic-gate typedef enum { 4777c478bd9Sstevel@tonic-gate SCTP_FADDRS_UNREACH, 4787c478bd9Sstevel@tonic-gate SCTP_FADDRS_DOWN, 4797c478bd9Sstevel@tonic-gate SCTP_FADDRS_ALIVE, 4807c478bd9Sstevel@tonic-gate SCTP_FADDRS_UNCONFIRMED 4817c478bd9Sstevel@tonic-gate } faddr_state_t; 4827c478bd9Sstevel@tonic-gate 4837c478bd9Sstevel@tonic-gate typedef struct sctp_faddr_s { 4847c478bd9Sstevel@tonic-gate struct sctp_faddr_s *next; 4857c478bd9Sstevel@tonic-gate faddr_state_t state; 4867c478bd9Sstevel@tonic-gate 4877c478bd9Sstevel@tonic-gate in6_addr_t faddr; 4887c478bd9Sstevel@tonic-gate in6_addr_t saddr; 4897c478bd9Sstevel@tonic-gate 4907c478bd9Sstevel@tonic-gate int64_t hb_expiry; /* time to retransmit heartbeat */ 4917c478bd9Sstevel@tonic-gate uint32_t hb_interval; /* the heartbeat interval */ 4927c478bd9Sstevel@tonic-gate 4937c478bd9Sstevel@tonic-gate int rto; /* RTO in tick */ 4947c478bd9Sstevel@tonic-gate int srtt; /* Smoothed RTT in tick */ 4957c478bd9Sstevel@tonic-gate int rttvar; /* RTT variance in tick */ 4967c478bd9Sstevel@tonic-gate uint32_t rtt_updates; 4977c478bd9Sstevel@tonic-gate int strikes; 4987c478bd9Sstevel@tonic-gate int max_retr; 4997c478bd9Sstevel@tonic-gate uint32_t sfa_pmss; 5007c478bd9Sstevel@tonic-gate uint32_t cwnd; 5017c478bd9Sstevel@tonic-gate uint32_t ssthresh; 5027c478bd9Sstevel@tonic-gate uint32_t suna; /* sent - unack'ed */ 5037c478bd9Sstevel@tonic-gate uint32_t pba; /* partial bytes acked */ 5047c478bd9Sstevel@tonic-gate uint32_t acked; 5057c478bd9Sstevel@tonic-gate int64_t lastactive; 5067c478bd9Sstevel@tonic-gate mblk_t *timer_mp; /* retransmission timer control */ 5077c478bd9Sstevel@tonic-gate uint32_t 5087c478bd9Sstevel@tonic-gate hb_pending : 1, 5097c478bd9Sstevel@tonic-gate timer_running : 1, 5107c478bd9Sstevel@tonic-gate df : 1, 5117c478bd9Sstevel@tonic-gate pmtu_discovered : 1, 5127c478bd9Sstevel@tonic-gate 5137c478bd9Sstevel@tonic-gate rc_timer_running : 1, 5147c478bd9Sstevel@tonic-gate isv4 : 1; 5157c478bd9Sstevel@tonic-gate 5167c478bd9Sstevel@tonic-gate mblk_t *rc_timer_mp; /* reliable control chunk timer */ 5177c478bd9Sstevel@tonic-gate ire_t *ire; /* cached IRE */ 5187c478bd9Sstevel@tonic-gate uint32_t T3expire; /* # of times T3 timer expired */ 5197c478bd9Sstevel@tonic-gate 5207c478bd9Sstevel@tonic-gate uint64_t hb_secret; /* per addr "secret" in heartbeat */ 52112f47623Skcpoon uint32_t rxt_unacked; /* # unack'ed retransmitted bytes */ 5227c478bd9Sstevel@tonic-gate } sctp_faddr_t; 5237c478bd9Sstevel@tonic-gate 5247c478bd9Sstevel@tonic-gate /* Flags to indicate supported address type in the PARM_SUP_ADDRS. */ 5257c478bd9Sstevel@tonic-gate #define PARM_SUPP_V6 0x1 5267c478bd9Sstevel@tonic-gate #define PARM_SUPP_V4 0x2 5277c478bd9Sstevel@tonic-gate 5287c478bd9Sstevel@tonic-gate /* 5297c478bd9Sstevel@tonic-gate * Set heartbeat interval plus jitter. The jitter is supposed to be random, 5307c478bd9Sstevel@tonic-gate * up to +/- 50% of the RTO. We use gethrtime() here for performance reason 5317c478bd9Sstevel@tonic-gate * as the jitter does not really need to be "very" random. 5327c478bd9Sstevel@tonic-gate */ 5337c478bd9Sstevel@tonic-gate #define SET_HB_INTVL(fp) \ 5347c478bd9Sstevel@tonic-gate ((fp)->hb_interval + (fp)->rto + ((fp)->rto >> 1) - \ 5357c478bd9Sstevel@tonic-gate (uint_t)gethrtime() % (fp)->rto); 5367c478bd9Sstevel@tonic-gate 5377c478bd9Sstevel@tonic-gate #define SCTP_IPIF_HASH 16 5387c478bd9Sstevel@tonic-gate 5397c478bd9Sstevel@tonic-gate typedef struct sctp_ipif_hash_s { 5407c478bd9Sstevel@tonic-gate list_t sctp_ipif_list; 5417c478bd9Sstevel@tonic-gate int ipif_count; 5427c478bd9Sstevel@tonic-gate } sctp_ipif_hash_t; 5437c478bd9Sstevel@tonic-gate 54412f47623Skcpoon 54512f47623Skcpoon /* 54612f47623Skcpoon * Initialize cwnd according to RFC 3390. def_max_init_cwnd is 54712f47623Skcpoon * either sctp_slow_start_initial or sctp_slow_start_after idle 54812f47623Skcpoon * depending on the caller. 54912f47623Skcpoon */ 55012f47623Skcpoon #define SET_CWND(fp, mss, def_max_init_cwnd) \ 55112f47623Skcpoon { \ 55212f47623Skcpoon (fp)->cwnd = MIN(def_max_init_cwnd * (mss), \ 55312f47623Skcpoon MIN(4 * (mss), MAX(2 * (mss), 4380 / (mss) * (mss)))); \ 55412f47623Skcpoon } 55512f47623Skcpoon 55612f47623Skcpoon 5577c478bd9Sstevel@tonic-gate struct sctp_s; 5587c478bd9Sstevel@tonic-gate 5597c478bd9Sstevel@tonic-gate /* 5607c478bd9Sstevel@tonic-gate * Control structure for each open SCTP stream, 5617c478bd9Sstevel@tonic-gate * defined only within the kernel or for a kmem user. 5627c478bd9Sstevel@tonic-gate * NOTE: sctp_reinit_values MUST have a line for each field in this structure! 5637c478bd9Sstevel@tonic-gate */ 5647c478bd9Sstevel@tonic-gate #if (defined(_KERNEL) || defined(_KMEMUSER)) 5657c478bd9Sstevel@tonic-gate 5667c478bd9Sstevel@tonic-gate typedef struct sctp_s { 5677c478bd9Sstevel@tonic-gate 5687c478bd9Sstevel@tonic-gate /* 5697c478bd9Sstevel@tonic-gate * The following is shared with (and duplicated) in IP, so if you 5707c478bd9Sstevel@tonic-gate * make changes, make sure you also change things in ip_sctp.c. 5717c478bd9Sstevel@tonic-gate */ 5727c478bd9Sstevel@tonic-gate struct sctp_s *sctp_conn_hash_next; 5737c478bd9Sstevel@tonic-gate struct sctp_s *sctp_conn_hash_prev; 5747c478bd9Sstevel@tonic-gate 5757c478bd9Sstevel@tonic-gate struct sctp_s *sctp_listen_hash_next; 5767c478bd9Sstevel@tonic-gate struct sctp_s *sctp_listen_hash_prev; 5777c478bd9Sstevel@tonic-gate 5787c478bd9Sstevel@tonic-gate sctp_tf_t *sctp_listen_tfp; /* Ptr to tf */ 5797c478bd9Sstevel@tonic-gate sctp_tf_t *sctp_conn_tfp; /* Ptr to tf */ 5807c478bd9Sstevel@tonic-gate 5817c478bd9Sstevel@tonic-gate /* Global list of sctp */ 5827c478bd9Sstevel@tonic-gate list_node_t sctp_list; 5837c478bd9Sstevel@tonic-gate 5847c478bd9Sstevel@tonic-gate sctp_faddr_t *sctp_faddrs; 5851d8c4025Svi int sctp_nfaddrs; 5867c478bd9Sstevel@tonic-gate sctp_ipif_hash_t sctp_saddrs[SCTP_IPIF_HASH]; 5877c478bd9Sstevel@tonic-gate int sctp_nsaddrs; 5887c478bd9Sstevel@tonic-gate 5897c478bd9Sstevel@tonic-gate /* 5907c478bd9Sstevel@tonic-gate * These fields contain the same information as sctp_sctph->th_*port. 5917c478bd9Sstevel@tonic-gate * However, the lookup functions can not use the header fields 5927c478bd9Sstevel@tonic-gate * since during IP option manipulation the sctp_sctph pointer 5937c478bd9Sstevel@tonic-gate * changes. 5947c478bd9Sstevel@tonic-gate */ 5957c478bd9Sstevel@tonic-gate union { 5967c478bd9Sstevel@tonic-gate struct { 5977c478bd9Sstevel@tonic-gate in_port_t sctpu_fport; /* Remote port */ 5987c478bd9Sstevel@tonic-gate in_port_t sctpu_lport; /* Local port */ 5997c478bd9Sstevel@tonic-gate } sctpu_ports1; 6007c478bd9Sstevel@tonic-gate uint32_t sctpu_ports2; /* Rem port, */ 6017c478bd9Sstevel@tonic-gate /* local port */ 6027c478bd9Sstevel@tonic-gate /* Used for SCTP_MATCH performance */ 6037c478bd9Sstevel@tonic-gate } sctp_sctpu; 6047c478bd9Sstevel@tonic-gate #define sctp_fport sctp_sctpu.sctpu_ports1.sctpu_fport 6057c478bd9Sstevel@tonic-gate #define sctp_lport sctp_sctpu.sctpu_ports1.sctpu_lport 6067c478bd9Sstevel@tonic-gate #define sctp_ports sctp_sctpu.sctpu_ports2 6077c478bd9Sstevel@tonic-gate 6087c478bd9Sstevel@tonic-gate kmutex_t sctp_lock; 6097c478bd9Sstevel@tonic-gate kcondvar_t sctp_cv; 6107c478bd9Sstevel@tonic-gate boolean_t sctp_running; 6117c478bd9Sstevel@tonic-gate 6127c478bd9Sstevel@tonic-gate void *sctp_ulpd; /* SCTP upper layer desc. */ 6137c478bd9Sstevel@tonic-gate 6147c478bd9Sstevel@tonic-gate struct sctp_upcalls_s sctp_upcalls; /* upcalls for sctp_ulpd */ 6157c478bd9Sstevel@tonic-gate #define sctp_ulp_newconn sctp_upcalls.su_newconn 6167c478bd9Sstevel@tonic-gate #define sctp_ulp_connected sctp_upcalls.su_connected 6177c478bd9Sstevel@tonic-gate #define sctp_ulp_disconnected sctp_upcalls.su_disconnected 6187c478bd9Sstevel@tonic-gate #define sctp_ulp_disconnecting sctp_upcalls.su_disconnecting 6197c478bd9Sstevel@tonic-gate #define sctp_ulp_recv sctp_upcalls.su_recv 6207c478bd9Sstevel@tonic-gate #define sctp_ulp_xmitted sctp_upcalls.su_xmitted 6217c478bd9Sstevel@tonic-gate #define sctp_ulp_prop sctp_upcalls.su_properties 6227c478bd9Sstevel@tonic-gate 6237c478bd9Sstevel@tonic-gate int32_t sctp_state; 6247c478bd9Sstevel@tonic-gate 6257c478bd9Sstevel@tonic-gate conn_t *sctp_connp; /* conn_t stuff */ 6267c478bd9Sstevel@tonic-gate #define sctp_zoneid sctp_connp->conn_zoneid 6275d0bc3edSsommerfe #define sctp_allzones sctp_connp->conn_allzones 6285d0bc3edSsommerfe #define sctp_mac_exempt sctp_connp->conn_mac_exempt 6297c478bd9Sstevel@tonic-gate #define sctp_credp sctp_connp->conn_cred 6305d0bc3edSsommerfe #define sctp_reuseaddr sctp_connp->conn_reuseaddr 6317c478bd9Sstevel@tonic-gate 632f4b3ec61Sdh sctp_stack_t *sctp_sctps; 633f4b3ec61Sdh 6347c478bd9Sstevel@tonic-gate /* Peer address tracking */ 6357c478bd9Sstevel@tonic-gate sctp_faddr_t *sctp_lastfaddr; /* last faddr in list */ 6367c478bd9Sstevel@tonic-gate sctp_faddr_t *sctp_primary; /* primary faddr */ 6377c478bd9Sstevel@tonic-gate sctp_faddr_t *sctp_current; /* current faddr */ 6387c478bd9Sstevel@tonic-gate sctp_faddr_t *sctp_lastdata; /* last data seen from this */ 6397c478bd9Sstevel@tonic-gate 6407c478bd9Sstevel@tonic-gate /* Outbound data tracking */ 6417c478bd9Sstevel@tonic-gate mblk_t *sctp_xmit_head; 6427c478bd9Sstevel@tonic-gate mblk_t *sctp_xmit_tail; 6437c478bd9Sstevel@tonic-gate mblk_t *sctp_xmit_unsent; 6447c478bd9Sstevel@tonic-gate mblk_t *sctp_xmit_unsent_tail; 6457c478bd9Sstevel@tonic-gate mblk_t *sctp_xmit_unacked; 6467c478bd9Sstevel@tonic-gate 6477c478bd9Sstevel@tonic-gate int32_t sctp_unacked; /* # of unacked bytes */ 6487c478bd9Sstevel@tonic-gate int32_t sctp_unsent; /* # of unsent bytes in hand */ 6497c478bd9Sstevel@tonic-gate 6507c478bd9Sstevel@tonic-gate uint32_t sctp_ltsn; /* Local instance TSN */ 6517c478bd9Sstevel@tonic-gate uint32_t sctp_lastack_rxd; /* Last rx'd cumtsn */ 6527c478bd9Sstevel@tonic-gate uint32_t sctp_recovery_tsn; /* Exit from fast recovery */ 6537c478bd9Sstevel@tonic-gate uint32_t sctp_adv_pap; /* Adv. Peer Ack Point */ 6547c478bd9Sstevel@tonic-gate 6557c478bd9Sstevel@tonic-gate uint16_t sctp_num_ostr; 6567c478bd9Sstevel@tonic-gate uint16_t *sctp_ostrcntrs; 6577c478bd9Sstevel@tonic-gate 6587c478bd9Sstevel@tonic-gate /* sendmsg() default parameters */ 6597c478bd9Sstevel@tonic-gate uint16_t sctp_def_stream; /* default stream id */ 6607c478bd9Sstevel@tonic-gate uint16_t sctp_def_flags; /* default xmit flags */ 6617c478bd9Sstevel@tonic-gate uint32_t sctp_def_ppid; /* default payload id */ 6627c478bd9Sstevel@tonic-gate uint32_t sctp_def_context; /* default context */ 6637c478bd9Sstevel@tonic-gate uint32_t sctp_def_timetolive; /* default msg TTL */ 6647c478bd9Sstevel@tonic-gate 6657c478bd9Sstevel@tonic-gate /* Inbound data tracking */ 6667c478bd9Sstevel@tonic-gate sctp_set_t *sctp_sack_info; /* Sack tracking */ 6677c478bd9Sstevel@tonic-gate mblk_t *sctp_ack_mp; /* Delayed ACK timer block */ 6687c478bd9Sstevel@tonic-gate sctp_instr_t *sctp_instr; /* Instream trackers */ 6697c478bd9Sstevel@tonic-gate mblk_t *sctp_uo_frags; /* Un-ordered msg. fragments */ 6707c478bd9Sstevel@tonic-gate uint32_t sctp_ftsn; /* Peer's TSN */ 6717c478bd9Sstevel@tonic-gate uint32_t sctp_lastacked; /* last cumtsn SACKd */ 6727c478bd9Sstevel@tonic-gate uint16_t sctp_num_istr; /* No. of instreams */ 6737c478bd9Sstevel@tonic-gate int32_t sctp_istr_nmsgs; /* No. of chunks in instreams */ 6747c478bd9Sstevel@tonic-gate int32_t sctp_sack_gaps; /* No. of received gaps */ 6757c478bd9Sstevel@tonic-gate int32_t sctp_sack_toggle; /* SACK every other pkt */ 6767c478bd9Sstevel@tonic-gate 6777c478bd9Sstevel@tonic-gate /* RTT calculation */ 6787c478bd9Sstevel@tonic-gate uint32_t sctp_rtt_tsn; 6797c478bd9Sstevel@tonic-gate int64_t sctp_out_time; 6807c478bd9Sstevel@tonic-gate 6817c478bd9Sstevel@tonic-gate /* Stats */ 6827c478bd9Sstevel@tonic-gate uint64_t sctp_opkts; /* sent pkts */ 6837c478bd9Sstevel@tonic-gate uint64_t sctp_obchunks; /* sent control chunks */ 6847c478bd9Sstevel@tonic-gate uint64_t sctp_odchunks; /* sent ordered data chunks */ 6857c478bd9Sstevel@tonic-gate uint64_t sctp_oudchunks; /* sent unord data chunks */ 6867c478bd9Sstevel@tonic-gate uint64_t sctp_rxtchunks; /* retransmitted chunks */ 6877c478bd9Sstevel@tonic-gate uint64_t sctp_ipkts; /* recv pkts */ 6887c478bd9Sstevel@tonic-gate uint64_t sctp_ibchunks; /* recv control chunks */ 6897c478bd9Sstevel@tonic-gate uint64_t sctp_idchunks; /* recv ordered data chunks */ 6907c478bd9Sstevel@tonic-gate uint64_t sctp_iudchunks; /* recv unord data chunks */ 6917c478bd9Sstevel@tonic-gate uint64_t sctp_fragdmsgs; 6927c478bd9Sstevel@tonic-gate uint64_t sctp_reassmsgs; 6937c478bd9Sstevel@tonic-gate uint32_t sctp_T1expire; /* # of times T1timer expired */ 6947c478bd9Sstevel@tonic-gate uint32_t sctp_T2expire; /* # of times T2timer expired */ 6957c478bd9Sstevel@tonic-gate uint32_t sctp_T3expire; /* # of times T3timer expired */ 6967c478bd9Sstevel@tonic-gate uint32_t sctp_assoc_start_time; /* time when assoc was est. */ 6977c478bd9Sstevel@tonic-gate 6987c478bd9Sstevel@tonic-gate /* Outbound flow control */ 6997c478bd9Sstevel@tonic-gate int32_t sctp_xmit_hiwater; /* Send high water mark */ 7007c478bd9Sstevel@tonic-gate int32_t sctp_xmit_lowater; /* Send low water mark */ 7017c478bd9Sstevel@tonic-gate uint32_t sctp_frwnd; /* Peer RWND */ 7027c478bd9Sstevel@tonic-gate uint32_t sctp_cwnd_max; 7037c478bd9Sstevel@tonic-gate 7047c478bd9Sstevel@tonic-gate /* Inbound flow control */ 7057c478bd9Sstevel@tonic-gate int32_t sctp_rwnd; /* Current receive window */ 7061d8c4025Svi int32_t sctp_irwnd; /* Initial receive window */ 7077c478bd9Sstevel@tonic-gate int32_t sctp_rxqueued; /* No. of bytes in RX q's */ 7087c478bd9Sstevel@tonic-gate 7097c478bd9Sstevel@tonic-gate /* Pre-initialized composite headers */ 7107c478bd9Sstevel@tonic-gate char *sctp_iphc; /* v4 sctp/ip hdr template buffer */ 7117c478bd9Sstevel@tonic-gate char *sctp_iphc6; /* v6 sctp/ip hdr template buffer */ 7127c478bd9Sstevel@tonic-gate 7137c478bd9Sstevel@tonic-gate int32_t sctp_iphc_len; /* actual allocated v4 buffer size */ 7147c478bd9Sstevel@tonic-gate int32_t sctp_iphc6_len; /* actual allocated v6 buffer size */ 7157c478bd9Sstevel@tonic-gate 7167c478bd9Sstevel@tonic-gate int32_t sctp_hdr_len; /* len of combined SCTP/IP v4 hdr */ 7177c478bd9Sstevel@tonic-gate int32_t sctp_hdr6_len; /* len of combined SCTP/IP v6 hdr */ 7187c478bd9Sstevel@tonic-gate 7197c478bd9Sstevel@tonic-gate ipha_t *sctp_ipha; /* IPv4 header in the buffer */ 7207c478bd9Sstevel@tonic-gate ip6_t *sctp_ip6h; /* IPv6 header in the buffer */ 7217c478bd9Sstevel@tonic-gate 7227c478bd9Sstevel@tonic-gate int32_t sctp_ip_hdr_len; /* Byte len of our current v4 hdr */ 7237c478bd9Sstevel@tonic-gate int32_t sctp_ip_hdr6_len; /* Byte len of our current v6 hdr */ 7247c478bd9Sstevel@tonic-gate 7257c478bd9Sstevel@tonic-gate sctp_hdr_t *sctp_sctph; /* sctp header in combined v4 hdr */ 7267c478bd9Sstevel@tonic-gate sctp_hdr_t *sctp_sctph6; /* sctp header in combined v6 hdr */ 7277c478bd9Sstevel@tonic-gate 7287c478bd9Sstevel@tonic-gate uint32_t sctp_lvtag; /* local SCTP instance verf tag */ 7297c478bd9Sstevel@tonic-gate uint32_t sctp_fvtag; /* Peer's SCTP verf tag */ 7307c478bd9Sstevel@tonic-gate 7317c478bd9Sstevel@tonic-gate /* Path MTU Discovery */ 7327c478bd9Sstevel@tonic-gate int64_t sctp_last_mtu_probe; 7337c478bd9Sstevel@tonic-gate clock_t sctp_mtu_probe_intvl; 7347c478bd9Sstevel@tonic-gate uint32_t sctp_mss; /* Max send size (not TCP MSS!) */ 7357c478bd9Sstevel@tonic-gate 7367c478bd9Sstevel@tonic-gate /* structs sctp_bits, sctp_events are for clearing all bits at once */ 7377c478bd9Sstevel@tonic-gate struct { 7387c478bd9Sstevel@tonic-gate uint32_t 7397c478bd9Sstevel@tonic-gate 7407c478bd9Sstevel@tonic-gate sctp_understands_asconf : 1, /* Peer handles ASCONF chunks */ 7417c478bd9Sstevel@tonic-gate sctp_debug : 1, /* SO_DEBUG "socket" option. */ 7427c478bd9Sstevel@tonic-gate sctp_cchunk_pend : 1, /* Control chunk in flight. */ 7437c478bd9Sstevel@tonic-gate sctp_dgram_errind : 1, /* SO_DGRAM_ERRIND option */ 7447c478bd9Sstevel@tonic-gate 7457c478bd9Sstevel@tonic-gate sctp_linger : 1, /* SO_LINGER turned on */ 7467c478bd9Sstevel@tonic-gate sctp_lingering : 1, /* Lingering in close */ 7477c478bd9Sstevel@tonic-gate sctp_loopback: 1, /* src and dst are the same machine */ 7487c478bd9Sstevel@tonic-gate sctp_force_sack : 1, 7497c478bd9Sstevel@tonic-gate 7507c478bd9Sstevel@tonic-gate sctp_ack_timer_running: 1, /* Delayed ACK timer running */ 7517c478bd9Sstevel@tonic-gate sctp_recvdstaddr : 1, /* return T_EXTCONN_IND with dstaddr */ 7527c478bd9Sstevel@tonic-gate sctp_hwcksum : 1, /* The NIC is capable of hwcksum */ 7537c478bd9Sstevel@tonic-gate sctp_understands_addip : 1, 7547c478bd9Sstevel@tonic-gate 7557c478bd9Sstevel@tonic-gate sctp_bound_to_all : 1, 7567c478bd9Sstevel@tonic-gate sctp_cansleep : 1, /* itf routines can sleep */ 7577c478bd9Sstevel@tonic-gate sctp_detached : 1, /* If we're detached from a stream */ 7587c478bd9Sstevel@tonic-gate sctp_send_adaption : 1, /* send adaption layer ind */ 7597c478bd9Sstevel@tonic-gate 7607c478bd9Sstevel@tonic-gate sctp_recv_adaption : 1, /* received adaption layer ind */ 7617c478bd9Sstevel@tonic-gate sctp_ndelay : 1, /* turn off Nagle */ 7627c478bd9Sstevel@tonic-gate sctp_condemned : 1, /* this sctp is about to disappear */ 7637c478bd9Sstevel@tonic-gate sctp_chk_fast_rexmit : 1, /* check for fast rexmit message */ 764f551bb10Svi 765f551bb10Svi sctp_prsctp_aware : 1, /* is peer PR-SCTP aware? */ 76645916cd2Sjpk sctp_linklocal : 1, /* is linklocal assoc. */ 76777c67f2fSkcpoon sctp_rexmitting : 1, /* SCTP is retransmitting */ 768769b977dSvi sctp_zero_win_probe : 1, /* doing zero win probe */ 76977c67f2fSkcpoon 7705d0bc3edSsommerfe sctp_dummy : 8; 7717c478bd9Sstevel@tonic-gate } sctp_bits; 7727c478bd9Sstevel@tonic-gate struct { 7737c478bd9Sstevel@tonic-gate uint32_t 7747c478bd9Sstevel@tonic-gate 7757c478bd9Sstevel@tonic-gate sctp_recvsndrcvinfo : 1, 7767c478bd9Sstevel@tonic-gate sctp_recvassocevnt : 1, 7777c478bd9Sstevel@tonic-gate sctp_recvpathevnt : 1, 7787c478bd9Sstevel@tonic-gate sctp_recvsendfailevnt : 1, 7797c478bd9Sstevel@tonic-gate 7807c478bd9Sstevel@tonic-gate sctp_recvpeererr : 1, 7817c478bd9Sstevel@tonic-gate sctp_recvshutdownevnt : 1, 7827c478bd9Sstevel@tonic-gate sctp_recvpdevnt : 1, 7837c478bd9Sstevel@tonic-gate sctp_recvalevnt : 1; 7847c478bd9Sstevel@tonic-gate } sctp_events; 7857c478bd9Sstevel@tonic-gate #define sctp_priv_stream sctp_bits.sctp_priv_stream 7867c478bd9Sstevel@tonic-gate #define sctp_understands_asconf sctp_bits.sctp_understands_asconf 7877c478bd9Sstevel@tonic-gate #define sctp_debug sctp_bits.sctp_debug 7887c478bd9Sstevel@tonic-gate #define sctp_cchunk_pend sctp_bits.sctp_cchunk_pend 7897c478bd9Sstevel@tonic-gate #define sctp_dgram_errind sctp_bits.sctp_dgram_errind 7907c478bd9Sstevel@tonic-gate #define sctp_linger sctp_bits.sctp_linger 7917c478bd9Sstevel@tonic-gate #define sctp_lingering sctp_bits.sctp_lingering 7927c478bd9Sstevel@tonic-gate #define sctp_loopback sctp_bits.sctp_loopback 7937c478bd9Sstevel@tonic-gate #define sctp_force_sack sctp_bits.sctp_force_sack 7947c478bd9Sstevel@tonic-gate #define sctp_ack_timer_running sctp_bits.sctp_ack_timer_running 7957c478bd9Sstevel@tonic-gate #define sctp_recvdstaddr sctp_bits.sctp_recvdstaddr 7967c478bd9Sstevel@tonic-gate #define sctp_hwcksum sctp_bits.sctp_hwcksum 7977c478bd9Sstevel@tonic-gate #define sctp_understands_addip sctp_bits.sctp_understands_addip 7987c478bd9Sstevel@tonic-gate #define sctp_bound_to_all sctp_bits.sctp_bound_to_all 7997c478bd9Sstevel@tonic-gate #define sctp_cansleep sctp_bits.sctp_cansleep 8007c478bd9Sstevel@tonic-gate #define sctp_detached sctp_bits.sctp_detached 8017c478bd9Sstevel@tonic-gate #define sctp_send_adaption sctp_bits.sctp_send_adaption 8027c478bd9Sstevel@tonic-gate #define sctp_recv_adaption sctp_bits.sctp_recv_adaption 8037c478bd9Sstevel@tonic-gate #define sctp_ndelay sctp_bits.sctp_ndelay 8047c478bd9Sstevel@tonic-gate #define sctp_condemned sctp_bits.sctp_condemned 8057c478bd9Sstevel@tonic-gate #define sctp_chk_fast_rexmit sctp_bits.sctp_chk_fast_rexmit 8067c478bd9Sstevel@tonic-gate #define sctp_prsctp_aware sctp_bits.sctp_prsctp_aware 807f551bb10Svi #define sctp_linklocal sctp_bits.sctp_linklocal 80877c67f2fSkcpoon #define sctp_rexmitting sctp_bits.sctp_rexmitting 809769b977dSvi #define sctp_zero_win_probe sctp_bits.sctp_zero_win_probe 8107c478bd9Sstevel@tonic-gate 8117c478bd9Sstevel@tonic-gate #define sctp_recvsndrcvinfo sctp_events.sctp_recvsndrcvinfo 8127c478bd9Sstevel@tonic-gate #define sctp_recvassocevnt sctp_events.sctp_recvassocevnt 8137c478bd9Sstevel@tonic-gate #define sctp_recvpathevnt sctp_events.sctp_recvpathevnt 8147c478bd9Sstevel@tonic-gate #define sctp_recvsendfailevnt sctp_events.sctp_recvsendfailevnt 8157c478bd9Sstevel@tonic-gate #define sctp_recvpeererr sctp_events.sctp_recvpeererr 8167c478bd9Sstevel@tonic-gate #define sctp_recvshutdownevnt sctp_events.sctp_recvshutdownevnt 8177c478bd9Sstevel@tonic-gate #define sctp_recvpdevnt sctp_events.sctp_recvpdevnt 8187c478bd9Sstevel@tonic-gate #define sctp_recvalevnt sctp_events.sctp_recvalevnt 8197c478bd9Sstevel@tonic-gate 8207c478bd9Sstevel@tonic-gate /* Retransmit info */ 8217c478bd9Sstevel@tonic-gate mblk_t *sctp_cookie_mp; /* cookie chunk, if rxt needed */ 8227c478bd9Sstevel@tonic-gate int32_t sctp_strikes; /* Total number of assoc strikes */ 8237c478bd9Sstevel@tonic-gate int32_t sctp_max_init_rxt; 8247c478bd9Sstevel@tonic-gate int32_t sctp_pa_max_rxt; /* Max per-assoc retransmit cnt */ 8257c478bd9Sstevel@tonic-gate int32_t sctp_pp_max_rxt; /* Max per-path retransmit cnt */ 8267c478bd9Sstevel@tonic-gate uint32_t sctp_rto_max; 8277c478bd9Sstevel@tonic-gate uint32_t sctp_init_rto_max; 8287c478bd9Sstevel@tonic-gate uint32_t sctp_rto_min; 8297c478bd9Sstevel@tonic-gate uint32_t sctp_rto_initial; 8307c478bd9Sstevel@tonic-gate 8317c478bd9Sstevel@tonic-gate int64_t sctp_last_secret_update; 8327c478bd9Sstevel@tonic-gate uint8_t sctp_secret[SCTP_SECRET_LEN]; /* for cookie auth */ 8337c478bd9Sstevel@tonic-gate uint8_t sctp_old_secret[SCTP_SECRET_LEN]; 83412f47623Skcpoon uint32_t sctp_cookie_lifetime; /* cookie lifetime in tick */ 8357c478bd9Sstevel@tonic-gate 8367c478bd9Sstevel@tonic-gate /* 8377c478bd9Sstevel@tonic-gate * Address family that app wishes returned addrsses to be in. 8387c478bd9Sstevel@tonic-gate * Currently taken from address family used in T_BIND_REQ, but 8397c478bd9Sstevel@tonic-gate * should really come from family used in original socket() call. 8407c478bd9Sstevel@tonic-gate * Value can be AF_INET or AF_INET6. 8417c478bd9Sstevel@tonic-gate */ 8427c478bd9Sstevel@tonic-gate uint_t sctp_family; 8437c478bd9Sstevel@tonic-gate ushort_t sctp_ipversion; 8447c478bd9Sstevel@tonic-gate 8457c478bd9Sstevel@tonic-gate /* Bind hash tables */ 8467c478bd9Sstevel@tonic-gate kmutex_t *sctp_bind_lockp; /* Ptr to tf_lock */ 8477c478bd9Sstevel@tonic-gate struct sctp_s *sctp_bind_hash; 8487c478bd9Sstevel@tonic-gate struct sctp_s **sctp_ptpbhn; 8497c478bd9Sstevel@tonic-gate 8507c478bd9Sstevel@tonic-gate /* Shutdown / cleanup */ 8517c478bd9Sstevel@tonic-gate sctp_faddr_t *sctp_shutdown_faddr; /* rotate faddr during shutd */ 8527c478bd9Sstevel@tonic-gate int32_t sctp_client_errno; /* How the client screwed up */ 8537c478bd9Sstevel@tonic-gate int sctp_lingertime; /* Close linger time (in seconds) */ 8547c478bd9Sstevel@tonic-gate kmutex_t sctp_reflock; /* Protects sctp_refcnt & timer mp */ 8557c478bd9Sstevel@tonic-gate ushort_t sctp_refcnt; /* No. of pending upstream msg */ 8567c478bd9Sstevel@tonic-gate mblk_t *sctp_timer_mp; /* List of fired timers. */ 8577c478bd9Sstevel@tonic-gate 8587c478bd9Sstevel@tonic-gate /* Misc */ 8597c478bd9Sstevel@tonic-gate uint_t sctp_bound_if; /* IPV6_BOUND_IF */ 8607c478bd9Sstevel@tonic-gate 8617c478bd9Sstevel@tonic-gate mblk_t *sctp_heartbeat_mp; /* Timer block for heartbeats */ 8627c478bd9Sstevel@tonic-gate uint32_t sctp_hb_interval; /* Default hb_interval */ 8637c478bd9Sstevel@tonic-gate 8647c478bd9Sstevel@tonic-gate int32_t sctp_autoclose; /* Auto disconnect in ticks */ 8657c478bd9Sstevel@tonic-gate int64_t sctp_active; /* Last time data/sack on this conn */ 8667c478bd9Sstevel@tonic-gate uint32_t sctp_tx_adaption_code; /* TX adaptation code */ 8677c478bd9Sstevel@tonic-gate uint32_t sctp_rx_adaption_code; /* RX adaptation code */ 8687c478bd9Sstevel@tonic-gate 8697c478bd9Sstevel@tonic-gate /* Reliable control chunks */ 8707c478bd9Sstevel@tonic-gate mblk_t *sctp_cxmit_list; /* Xmit list for control chunks */ 8717c478bd9Sstevel@tonic-gate uint32_t sctp_lcsn; /* Our serial number */ 8727c478bd9Sstevel@tonic-gate uint32_t sctp_fcsn; /* Peer serial number */ 8737c478bd9Sstevel@tonic-gate 8747c478bd9Sstevel@tonic-gate /* Per association receive queue */ 8757c478bd9Sstevel@tonic-gate kmutex_t sctp_recvq_lock; 8767c478bd9Sstevel@tonic-gate mblk_t *sctp_recvq; 8777c478bd9Sstevel@tonic-gate mblk_t *sctp_recvq_tail; 8787c478bd9Sstevel@tonic-gate taskq_t *sctp_recvq_tq; 8797c478bd9Sstevel@tonic-gate 8807c478bd9Sstevel@tonic-gate /* Send queue to IP */ 8817c478bd9Sstevel@tonic-gate kmutex_t sctp_sendq_lock; 8827c478bd9Sstevel@tonic-gate mblk_t *sctp_sendq; 8837c478bd9Sstevel@tonic-gate mblk_t *sctp_sendq_tail; 8847c478bd9Sstevel@tonic-gate boolean_t sctp_sendq_sending; 8857c478bd9Sstevel@tonic-gate 8867c478bd9Sstevel@tonic-gate /* IPv6 ancillary data */ 8877c478bd9Sstevel@tonic-gate uint_t sctp_ipv6_recvancillary; /* flags */ 8887c478bd9Sstevel@tonic-gate #define SCTP_IPV6_RECVPKTINFO 0x01 /* IPV6_RECVPKTINFO opt */ 8897c478bd9Sstevel@tonic-gate #define SCTP_IPV6_RECVHOPLIMIT 0x02 /* IPV6_RECVHOPLIMIT opt */ 8907c478bd9Sstevel@tonic-gate #define SCTP_IPV6_RECVHOPOPTS 0x04 /* IPV6_RECVHOPOPTS opt */ 8917c478bd9Sstevel@tonic-gate #define SCTP_IPV6_RECVDSTOPTS 0x08 /* IPV6_RECVDSTOPTS opt */ 8927c478bd9Sstevel@tonic-gate #define SCTP_IPV6_RECVRTHDR 0x10 /* IPV6_RECVRTHDR opt */ 8937c478bd9Sstevel@tonic-gate #define SCTP_IPV6_RECVRTDSTOPTS 0x20 /* IPV6_RECVRTHDRDSTOPTS opt */ 8947c478bd9Sstevel@tonic-gate 8957c478bd9Sstevel@tonic-gate uint_t sctp_recvifindex; /* last rcvd IPV6_RCVPKTINFO */ 8967c478bd9Sstevel@tonic-gate uint_t sctp_recvhops; /* " IPV6_RECVHOPLIMIT */ 8977c478bd9Sstevel@tonic-gate ip6_hbh_t *sctp_hopopts; /* " IPV6_RECVHOPOPTS */ 8987c478bd9Sstevel@tonic-gate ip6_dest_t *sctp_dstopts; /* " IPV6_RECVDSTOPTS */ 8997c478bd9Sstevel@tonic-gate ip6_dest_t *sctp_rtdstopts; /* " IPV6_RECVRTHDRDSTOPTS */ 9007c478bd9Sstevel@tonic-gate ip6_rthdr_t *sctp_rthdr; /* " IPV6_RECVRTHDR */ 9017c478bd9Sstevel@tonic-gate uint_t sctp_hopoptslen; 9027c478bd9Sstevel@tonic-gate uint_t sctp_dstoptslen; 9037c478bd9Sstevel@tonic-gate uint_t sctp_rtdstoptslen; 9047c478bd9Sstevel@tonic-gate uint_t sctp_rthdrlen; 9057c478bd9Sstevel@tonic-gate 9067c478bd9Sstevel@tonic-gate ip6_pkt_t sctp_sticky_ipp; /* Sticky options */ 9077c478bd9Sstevel@tonic-gate #define sctp_ipp_fields sctp_sticky_ipp.ipp_fields 9087c478bd9Sstevel@tonic-gate #define sctp_ipp_ifindex sctp_sticky_ipp.ipp_ifindex 9097c478bd9Sstevel@tonic-gate #define sctp_ipp_addr sctp_sticky_ipp.ipp_addr 9107c478bd9Sstevel@tonic-gate #define sctp_ipp_hoplimit sctp_sticky_ipp.ipp_hoplimit 9117c478bd9Sstevel@tonic-gate #define sctp_ipp_hopoptslen sctp_sticky_ipp.ipp_hopoptslen 9127c478bd9Sstevel@tonic-gate #define sctp_ipp_rtdstoptslen sctp_sticky_ipp.ipp_rtdstoptslen 9137c478bd9Sstevel@tonic-gate #define sctp_ipp_rthdrlen sctp_sticky_ipp.ipp_rthdrlen 9147c478bd9Sstevel@tonic-gate #define sctp_ipp_dstoptslen sctp_sticky_ipp.ipp_dstoptslen 9157c478bd9Sstevel@tonic-gate #define sctp_ipp_hopopts sctp_sticky_ipp.ipp_hopopts 9167c478bd9Sstevel@tonic-gate #define sctp_ipp_rtdstopts sctp_sticky_ipp.ipp_rtdstopts 9177c478bd9Sstevel@tonic-gate #define sctp_ipp_rthdr sctp_sticky_ipp.ipp_rthdr 9187c478bd9Sstevel@tonic-gate #define sctp_ipp_dstopts sctp_sticky_ipp.ipp_dstopts 9197f99e6fcSkp #define sctp_ipp_pathmtu sctp_sticky_ipp.ipp_pathmtu 9207c478bd9Sstevel@tonic-gate #define sctp_ipp_nexthop sctp_sticky_ipp.ipp_nexthop 9217c478bd9Sstevel@tonic-gate /* Stats */ 9227c478bd9Sstevel@tonic-gate uint64_t sctp_msgcount; 9237c478bd9Sstevel@tonic-gate uint64_t sctp_prsctpdrop; 92445916cd2Sjpk 92545916cd2Sjpk uint_t sctp_v4label_len; /* length of cached v4 label */ 92645916cd2Sjpk uint_t sctp_v6label_len; /* length of cached v6 label */ 92777c67f2fSkcpoon uint32_t sctp_rxt_nxttsn; /* Next TSN to be rexmitted */ 92877c67f2fSkcpoon uint32_t sctp_rxt_maxtsn; /* Max TSN sent at time out */ 929*7d546a59Svi 930*7d546a59Svi int sctp_pd_point; /* Partial delivery point */ 9317c478bd9Sstevel@tonic-gate } sctp_t; 9327c478bd9Sstevel@tonic-gate 9337c478bd9Sstevel@tonic-gate #endif /* (defined(_KERNEL) || defined(_KMEMUSER)) */ 9347c478bd9Sstevel@tonic-gate 9357c478bd9Sstevel@tonic-gate extern void sctp_ack_timer(sctp_t *); 9367c478bd9Sstevel@tonic-gate extern size_t sctp_adaption_code_param(sctp_t *, uchar_t *); 9377c478bd9Sstevel@tonic-gate extern void sctp_adaption_event(sctp_t *); 93877c67f2fSkcpoon extern int sctp_add_faddr(sctp_t *, in6_addr_t *, int, boolean_t); 9397c478bd9Sstevel@tonic-gate extern boolean_t sctp_add_ftsn_set(sctp_ftsn_set_t **, sctp_faddr_t *, mblk_t *, 9407c478bd9Sstevel@tonic-gate uint_t *, uint32_t *); 9417c478bd9Sstevel@tonic-gate extern boolean_t sctp_add_recvq(sctp_t *, mblk_t *, boolean_t); 9427c478bd9Sstevel@tonic-gate extern void sctp_add_sendq(sctp_t *, mblk_t *); 9437c478bd9Sstevel@tonic-gate extern void sctp_add_unrec_parm(sctp_parm_hdr_t *, mblk_t **); 94412f47623Skcpoon extern size_t sctp_addr_params(sctp_t *, int, uchar_t *, boolean_t); 945df19b344Svi extern mblk_t *sctp_add_proto_hdr(sctp_t *, sctp_faddr_t *, mblk_t *, int, 946df19b344Svi int *); 9477c478bd9Sstevel@tonic-gate extern void sctp_addr_req(sctp_t *, mblk_t *); 9487c478bd9Sstevel@tonic-gate extern sctp_t *sctp_addrlist2sctp(mblk_t *, sctp_hdr_t *, sctp_chunk_hdr_t *, 949e35d2278Svi zoneid_t, sctp_stack_t *); 9507c478bd9Sstevel@tonic-gate extern void sctp_add_hdr(sctp_t *, uchar_t *, size_t); 9517c478bd9Sstevel@tonic-gate extern void sctp_check_adv_ack_pt(sctp_t *, mblk_t *, mblk_t *); 9527c478bd9Sstevel@tonic-gate extern void sctp_assoc_event(sctp_t *, uint16_t, uint16_t, 9537c478bd9Sstevel@tonic-gate sctp_chunk_hdr_t *); 9547c478bd9Sstevel@tonic-gate 9557c478bd9Sstevel@tonic-gate extern void sctp_bind_hash_insert(sctp_tf_t *, sctp_t *, int); 9567c478bd9Sstevel@tonic-gate extern void sctp_bind_hash_remove(sctp_t *); 95745916cd2Sjpk extern int sctp_bindi(sctp_t *, in_port_t, boolean_t, int, in_port_t *); 9581d8c4025Svi extern int sctp_bind_add(sctp_t *, const void *, uint32_t, boolean_t, 9591d8c4025Svi in_port_t); 9607c478bd9Sstevel@tonic-gate extern int sctp_bind_del(sctp_t *, const void *, uint32_t, boolean_t); 9617c478bd9Sstevel@tonic-gate extern int sctp_build_hdrs(sctp_t *); 9627c478bd9Sstevel@tonic-gate 9637c478bd9Sstevel@tonic-gate extern int sctp_check_abandoned_msg(sctp_t *, mblk_t *); 9647c478bd9Sstevel@tonic-gate extern void sctp_chunkify(sctp_t *, int, int); 9657c478bd9Sstevel@tonic-gate extern void sctp_clean_death(sctp_t *, int); 9667c478bd9Sstevel@tonic-gate extern void sctp_close_eager(sctp_t *); 9677c478bd9Sstevel@tonic-gate extern int sctp_compare_faddrsets(sctp_faddr_t *, sctp_faddr_t *); 9687c478bd9Sstevel@tonic-gate extern void sctp_congest_reset(sctp_t *); 9697c478bd9Sstevel@tonic-gate extern void sctp_conn_hash_insert(sctp_tf_t *, sctp_t *, int); 9707c478bd9Sstevel@tonic-gate extern void sctp_conn_hash_remove(sctp_t *); 971e35d2278Svi extern sctp_t *sctp_conn_match(in6_addr_t *, in6_addr_t *, uint32_t, 972f4b3ec61Sdh zoneid_t, sctp_stack_t *); 9737c478bd9Sstevel@tonic-gate extern sctp_t *sctp_conn_request(sctp_t *, mblk_t *, uint_t, uint_t, 9747c478bd9Sstevel@tonic-gate sctp_init_chunk_t *, mblk_t *); 9757c478bd9Sstevel@tonic-gate extern int sctp_conprim_opt_process(queue_t *, mblk_t *, int *, int *, 9767c478bd9Sstevel@tonic-gate int *); 9777c478bd9Sstevel@tonic-gate extern uint32_t sctp_cumack(sctp_t *, uint32_t, mblk_t **); 9787c478bd9Sstevel@tonic-gate extern sctp_t *sctp_create_eager(sctp_t *); 9797c478bd9Sstevel@tonic-gate 9807c478bd9Sstevel@tonic-gate extern void sctp_dispatch_rput(queue_t *, sctp_t *, sctp_hdr_t *, mblk_t *, 9817c478bd9Sstevel@tonic-gate uint_t, uint_t, in6_addr_t); 9827c478bd9Sstevel@tonic-gate extern char *sctp_display(sctp_t *, char *); 983f4b3ec61Sdh extern void sctp_display_all(sctp_stack_t *); 9847c478bd9Sstevel@tonic-gate 9857c478bd9Sstevel@tonic-gate extern void sctp_error_event(sctp_t *, sctp_chunk_hdr_t *); 9867c478bd9Sstevel@tonic-gate 9877c478bd9Sstevel@tonic-gate extern void sctp_faddr_alive(sctp_t *, sctp_faddr_t *); 9887c478bd9Sstevel@tonic-gate extern int sctp_faddr_dead(sctp_t *, sctp_faddr_t *, int); 98945916cd2Sjpk extern void sctp_faddr_fini(void); 99045916cd2Sjpk extern void sctp_faddr_init(void); 9917c478bd9Sstevel@tonic-gate extern void sctp_fast_rexmit(sctp_t *); 9927c478bd9Sstevel@tonic-gate extern void sctp_fill_sack(sctp_t *, unsigned char *, int); 9937c478bd9Sstevel@tonic-gate extern void sctp_free_faddr_timers(sctp_t *); 9947c478bd9Sstevel@tonic-gate extern void sctp_free_ftsn_set(sctp_ftsn_set_t *); 9957c478bd9Sstevel@tonic-gate extern void sctp_free_msg(mblk_t *); 9967c478bd9Sstevel@tonic-gate extern void sctp_free_reass(sctp_instr_t *); 9977c478bd9Sstevel@tonic-gate extern void sctp_free_set(sctp_set_t *); 9987c478bd9Sstevel@tonic-gate extern void sctp_ftsn_sets_fini(void); 9997c478bd9Sstevel@tonic-gate extern void sctp_ftsn_sets_init(void); 10007c478bd9Sstevel@tonic-gate 10011d8c4025Svi extern int sctp_get_addrlist(sctp_t *, const void *, uint32_t *, 10021d8c4025Svi uchar_t **, int *, size_t *); 1003f4b3ec61Sdh extern void sctp_g_q_inactive(sctp_stack_t *); 10047c478bd9Sstevel@tonic-gate extern int sctp_get_addrparams(sctp_t *, sctp_t *, mblk_t *, 10057c478bd9Sstevel@tonic-gate sctp_chunk_hdr_t *, uint_t *); 100677c67f2fSkcpoon extern void sctp_get_ire(sctp_t *, sctp_faddr_t *); 10071d8c4025Svi extern void sctp_get_faddr_list(sctp_t *, uchar_t *, size_t); 10087c478bd9Sstevel@tonic-gate extern mblk_t *sctp_get_first_sent(sctp_t *); 10097c478bd9Sstevel@tonic-gate extern mblk_t *sctp_get_msg_to_send(sctp_t *, mblk_t **, mblk_t *, int *, 10107c478bd9Sstevel@tonic-gate int32_t, uint32_t, sctp_faddr_t *); 10111d8c4025Svi extern void sctp_get_saddr_list(sctp_t *, uchar_t *, size_t); 10127c478bd9Sstevel@tonic-gate 10137c478bd9Sstevel@tonic-gate extern int sctp_handle_error(sctp_t *, sctp_hdr_t *, sctp_chunk_hdr_t *, 10147c478bd9Sstevel@tonic-gate mblk_t *); 1015f4b3ec61Sdh extern void sctp_hash_destroy(sctp_stack_t *); 1016f4b3ec61Sdh extern void sctp_hash_init(sctp_stack_t *); 10177c478bd9Sstevel@tonic-gate extern int sctp_header_init_ipv4(sctp_t *, int); 10187c478bd9Sstevel@tonic-gate extern int sctp_header_init_ipv6(sctp_t *, int); 10197c478bd9Sstevel@tonic-gate extern void sctp_heartbeat_timer(sctp_t *); 10207c478bd9Sstevel@tonic-gate 10217c478bd9Sstevel@tonic-gate extern void sctp_icmp_error(sctp_t *, mblk_t *); 1022f4b3ec61Sdh extern void sctp_inc_taskq(sctp_stack_t *); 10237c478bd9Sstevel@tonic-gate extern void sctp_info_req(sctp_t *, mblk_t *); 10247c478bd9Sstevel@tonic-gate extern mblk_t *sctp_init_mp(sctp_t *); 10257c478bd9Sstevel@tonic-gate extern boolean_t sctp_initialize_params(sctp_t *, sctp_init_chunk_t *, 10267c478bd9Sstevel@tonic-gate sctp_init_chunk_t *); 10277c478bd9Sstevel@tonic-gate extern uint32_t sctp_init2vtag(sctp_chunk_hdr_t *); 10287c478bd9Sstevel@tonic-gate extern void sctp_intf_event(sctp_t *, in6_addr_t, int, int); 10297c478bd9Sstevel@tonic-gate extern void sctp_input_data(sctp_t *, mblk_t *, mblk_t *); 10307c478bd9Sstevel@tonic-gate extern void sctp_instream_cleanup(sctp_t *, boolean_t); 10317c478bd9Sstevel@tonic-gate extern int sctp_is_a_faddr_clean(sctp_t *); 10327c478bd9Sstevel@tonic-gate 1033f4b3ec61Sdh extern void *sctp_kstat_init(netstackid_t); 1034f4b3ec61Sdh extern void sctp_kstat_fini(netstackid_t, kstat_t *); 1035f4b3ec61Sdh extern void *sctp_kstat2_init(netstackid_t, sctp_kstat_t *); 1036f4b3ec61Sdh extern void sctp_kstat2_fini(netstackid_t, kstat_t *); 10377c478bd9Sstevel@tonic-gate 10387c478bd9Sstevel@tonic-gate extern ssize_t sctp_link_abort(mblk_t *, uint16_t, char *, size_t, int, 10397c478bd9Sstevel@tonic-gate boolean_t); 10407c478bd9Sstevel@tonic-gate extern void sctp_listen_hash_insert(sctp_tf_t *, sctp_t *); 10417c478bd9Sstevel@tonic-gate extern void sctp_listen_hash_remove(sctp_t *); 10427c478bd9Sstevel@tonic-gate extern sctp_t *sctp_lookup(sctp_t *, in6_addr_t *, sctp_tf_t *, uint32_t *, 10437c478bd9Sstevel@tonic-gate int); 10447c478bd9Sstevel@tonic-gate extern sctp_faddr_t *sctp_lookup_faddr(sctp_t *, in6_addr_t *); 10457c478bd9Sstevel@tonic-gate 10467c478bd9Sstevel@tonic-gate extern mblk_t *sctp_make_err(sctp_t *, uint16_t, void *, size_t); 10477c478bd9Sstevel@tonic-gate extern mblk_t *sctp_make_ftsn_chunk(sctp_t *, sctp_faddr_t *, 10487c478bd9Sstevel@tonic-gate sctp_ftsn_set_t *, uint_t, uint32_t); 10497c478bd9Sstevel@tonic-gate extern void sctp_make_ftsns(sctp_t *, mblk_t *, mblk_t *, mblk_t **, 10507c478bd9Sstevel@tonic-gate sctp_faddr_t *, uint32_t *); 10517c478bd9Sstevel@tonic-gate extern mblk_t *sctp_make_mp(sctp_t *, sctp_faddr_t *, int); 10527c478bd9Sstevel@tonic-gate extern mblk_t *sctp_make_sack(sctp_t *, sctp_faddr_t *, mblk_t *); 10537c478bd9Sstevel@tonic-gate extern void sctp_maxpsz_set(sctp_t *); 10547c478bd9Sstevel@tonic-gate extern void sctp_move_faddr_timers(queue_t *, sctp_t *); 10557c478bd9Sstevel@tonic-gate 1056f4b3ec61Sdh extern void sctp_nd_free(sctp_stack_t *); 10577c478bd9Sstevel@tonic-gate extern int sctp_nd_getset(queue_t *, MBLKP); 1058f4b3ec61Sdh extern boolean_t sctp_nd_init(sctp_stack_t *); 10597c478bd9Sstevel@tonic-gate extern sctp_parm_hdr_t *sctp_next_parm(sctp_parm_hdr_t *, ssize_t *); 10607c478bd9Sstevel@tonic-gate 10617c478bd9Sstevel@tonic-gate extern void sctp_ootb_shutdown_ack(sctp_t *, mblk_t *, uint_t); 10627c478bd9Sstevel@tonic-gate extern size_t sctp_options_param(const sctp_t *, void *, int); 10637c478bd9Sstevel@tonic-gate extern size_t sctp_options_param_len(const sctp_t *, int); 106412f47623Skcpoon extern void sctp_output(sctp_t *, uint_t); 10657c478bd9Sstevel@tonic-gate 1066f4b3ec61Sdh extern boolean_t sctp_param_register(IDP *, sctpparam_t *, int, sctp_stack_t *); 10677c478bd9Sstevel@tonic-gate extern void sctp_partial_delivery_event(sctp_t *); 10687c478bd9Sstevel@tonic-gate extern int sctp_process_cookie(sctp_t *, sctp_chunk_hdr_t *, mblk_t *, 10697c478bd9Sstevel@tonic-gate sctp_init_chunk_t **, sctp_hdr_t *, int *, in6_addr_t *); 10707c478bd9Sstevel@tonic-gate extern void sctp_process_heartbeat(sctp_t *, sctp_chunk_hdr_t *); 10717c478bd9Sstevel@tonic-gate extern void sctp_process_sendq(sctp_t *); 10727c478bd9Sstevel@tonic-gate extern void sctp_process_timer(sctp_t *); 10737c478bd9Sstevel@tonic-gate 10747c478bd9Sstevel@tonic-gate extern void sctp_redo_faddr_srcs(sctp_t *); 10757c478bd9Sstevel@tonic-gate extern void sctp_regift_xmitlist(sctp_t *); 10767c478bd9Sstevel@tonic-gate extern void sctp_return_heartbeat(sctp_t *, sctp_chunk_hdr_t *, mblk_t *); 10777c478bd9Sstevel@tonic-gate extern void sctp_rexmit(sctp_t *, sctp_faddr_t *); 1078769b977dSvi extern mblk_t *sctp_rexmit_packet(sctp_t *, mblk_t **, mblk_t **, 1079769b977dSvi sctp_faddr_t *, uint_t *); 10807c478bd9Sstevel@tonic-gate extern void sctp_rexmit_timer(sctp_t *, sctp_faddr_t *); 10817c478bd9Sstevel@tonic-gate extern sctp_faddr_t *sctp_rotate_faddr(sctp_t *, sctp_faddr_t *); 10827c478bd9Sstevel@tonic-gate 10837c478bd9Sstevel@tonic-gate extern void sctp_sack(sctp_t *, mblk_t *); 10847c478bd9Sstevel@tonic-gate extern int sctp_secure_restart_check(mblk_t *, sctp_chunk_hdr_t *, 1085f4b3ec61Sdh uint32_t, int, sctp_stack_t *); 10867c478bd9Sstevel@tonic-gate extern void sctp_send_abort(sctp_t *, uint32_t, uint16_t, char *, size_t, 10877c478bd9Sstevel@tonic-gate mblk_t *, int, boolean_t); 10887c478bd9Sstevel@tonic-gate extern void sctp_send_cookie_ack(sctp_t *); 10897c478bd9Sstevel@tonic-gate extern void sctp_send_cookie_echo(sctp_t *, sctp_chunk_hdr_t *, mblk_t *); 10907c478bd9Sstevel@tonic-gate extern void sctp_send_err(sctp_t *, mblk_t *, sctp_faddr_t *); 1091d7ab25acSkp extern void sctp_send_initack(sctp_t *, sctp_hdr_t *, sctp_chunk_hdr_t *, 1092d7ab25acSkp mblk_t *); 10937c478bd9Sstevel@tonic-gate extern void sctp_send_shutdown(sctp_t *, int); 10947c478bd9Sstevel@tonic-gate extern void sctp_send_heartbeat(sctp_t *, sctp_faddr_t *); 10957c478bd9Sstevel@tonic-gate extern void sctp_sendfail_event(sctp_t *, mblk_t *, int, boolean_t); 109677c67f2fSkcpoon extern void sctp_set_faddr_current(sctp_t *, sctp_faddr_t *); 109777c67f2fSkcpoon extern int sctp_set_hdraddrs(sctp_t *); 1098769b977dSvi extern void sctp_set_saddr(sctp_t *, sctp_faddr_t *); 109945916cd2Sjpk extern void sctp_sets_init(void); 110045916cd2Sjpk extern void sctp_sets_fini(void); 11017c478bd9Sstevel@tonic-gate extern void sctp_shutdown_event(sctp_t *); 11027c478bd9Sstevel@tonic-gate extern void sctp_stop_faddr_timers(sctp_t *); 110377c67f2fSkcpoon extern int sctp_shutdown_received(sctp_t *, sctp_chunk_hdr_t *, boolean_t, 110477c67f2fSkcpoon boolean_t, sctp_faddr_t *); 11057c478bd9Sstevel@tonic-gate extern void sctp_shutdown_complete(sctp_t *); 11067c478bd9Sstevel@tonic-gate extern void sctp_set_if_mtu(sctp_t *); 11077c478bd9Sstevel@tonic-gate extern void sctp_set_iplen(sctp_t *, mblk_t *); 11087c478bd9Sstevel@tonic-gate extern void sctp_set_ulp_prop(sctp_t *); 110977c67f2fSkcpoon extern void sctp_ss_rexmit(sctp_t *); 11107c478bd9Sstevel@tonic-gate extern size_t sctp_supaddr_param_len(sctp_t *); 11117c478bd9Sstevel@tonic-gate extern size_t sctp_supaddr_param(sctp_t *, uchar_t *); 11127c478bd9Sstevel@tonic-gate 11137c478bd9Sstevel@tonic-gate extern void sctp_timer(sctp_t *, mblk_t *, clock_t); 11147c478bd9Sstevel@tonic-gate extern mblk_t *sctp_timer_alloc(sctp_t *, pfv_t); 11157c478bd9Sstevel@tonic-gate extern void sctp_timer_call(sctp_t *sctp, mblk_t *); 11167c478bd9Sstevel@tonic-gate extern void sctp_timer_free(mblk_t *); 11177c478bd9Sstevel@tonic-gate extern void sctp_timer_stop(mblk_t *); 11187c478bd9Sstevel@tonic-gate extern void sctp_unlink_faddr(sctp_t *, sctp_faddr_t *); 11197c478bd9Sstevel@tonic-gate 112077c67f2fSkcpoon extern void sctp_update_ire(sctp_t *sctp); 1121f4b3ec61Sdh extern in_port_t sctp_update_next_port(in_port_t, zone_t *zone, sctp_stack_t *); 11227c478bd9Sstevel@tonic-gate extern void sctp_update_rtt(sctp_t *, sctp_faddr_t *, clock_t); 11237c478bd9Sstevel@tonic-gate extern void sctp_user_abort(sctp_t *, mblk_t *, boolean_t); 11247c478bd9Sstevel@tonic-gate 11257c478bd9Sstevel@tonic-gate extern void sctp_validate_peer(sctp_t *); 11267c478bd9Sstevel@tonic-gate 11277c478bd9Sstevel@tonic-gate extern void sctp_wput_ioctl(queue_t *, mblk_t *); 11287c478bd9Sstevel@tonic-gate 11297c478bd9Sstevel@tonic-gate extern int sctp_xmit_list_clean(sctp_t *, ssize_t); 11307c478bd9Sstevel@tonic-gate 11317c478bd9Sstevel@tonic-gate extern void sctp_zap_addrs(sctp_t *); 11327c478bd9Sstevel@tonic-gate extern void sctp_zap_faddrs(sctp_t *, int); 11337c478bd9Sstevel@tonic-gate 11341d8c4025Svi /* Contract private interface between SCTP and Clustering - PSARC/2005/602 */ 11351d8c4025Svi 11361d8c4025Svi extern void (*cl_sctp_listen)(sa_family_t, uchar_t *, uint_t, in_port_t); 11371d8c4025Svi extern void (*cl_sctp_unlisten)(sa_family_t, uchar_t *, uint_t, in_port_t); 11381d8c4025Svi extern void (*cl_sctp_connect)(sa_family_t, uchar_t *, uint_t, in_port_t, 11391d8c4025Svi uchar_t *, uint_t, in_port_t, boolean_t, cl_sctp_handle_t); 11401d8c4025Svi extern void (*cl_sctp_disconnect)(sa_family_t, cl_sctp_handle_t); 11411d8c4025Svi extern void (*cl_sctp_assoc_change)(sa_family_t, uchar_t *, size_t, uint_t, 11421d8c4025Svi uchar_t *, size_t, uint_t, int, cl_sctp_handle_t); 11431d8c4025Svi extern void (*cl_sctp_check_addrs)(sa_family_t, in_port_t, uchar_t **, 11441d8c4025Svi size_t, uint_t *, boolean_t); 11451d8c4025Svi 11467c478bd9Sstevel@tonic-gate /* Send a mp to IP. */ 11477c478bd9Sstevel@tonic-gate #define IP_PUT(mp, conn, isv4) \ 11487c478bd9Sstevel@tonic-gate { \ 1149f4b3ec61Sdh sctp_stack_t *sctps = conn->conn_netstack->netstack_sctp; \ 1150f4b3ec61Sdh \ 11517c478bd9Sstevel@tonic-gate if ((isv4)) \ 1152f4b3ec61Sdh ip_output((conn), (mp), WR(sctps->sctps_g_q), IP_WPUT); \ 11537c478bd9Sstevel@tonic-gate else \ 1154f4b3ec61Sdh ip_output_v6((conn), (mp), WR(sctps->sctps_g_q), IP_WPUT);\ 11557c478bd9Sstevel@tonic-gate } 11567c478bd9Sstevel@tonic-gate 11577c478bd9Sstevel@tonic-gate #define RUN_SCTP(sctp) \ 11587c478bd9Sstevel@tonic-gate { \ 11597c478bd9Sstevel@tonic-gate mutex_enter(&(sctp)->sctp_lock); \ 11607c478bd9Sstevel@tonic-gate while ((sctp)->sctp_running) \ 11617c478bd9Sstevel@tonic-gate cv_wait(&(sctp)->sctp_cv, &(sctp)->sctp_lock); \ 11627c478bd9Sstevel@tonic-gate (sctp)->sctp_running = B_TRUE; \ 11637c478bd9Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_lock); \ 11647c478bd9Sstevel@tonic-gate } 11657c478bd9Sstevel@tonic-gate 11667c478bd9Sstevel@tonic-gate /* Wake up recvq taskq */ 11677c478bd9Sstevel@tonic-gate #define WAKE_SCTP(sctp) \ 11687c478bd9Sstevel@tonic-gate { \ 11697c478bd9Sstevel@tonic-gate mutex_enter(&(sctp)->sctp_lock); \ 11707c478bd9Sstevel@tonic-gate if ((sctp)->sctp_timer_mp != NULL) \ 11717c478bd9Sstevel@tonic-gate sctp_process_timer(sctp); \ 11727c478bd9Sstevel@tonic-gate (sctp)->sctp_running = B_FALSE; \ 11737c478bd9Sstevel@tonic-gate cv_broadcast(&(sctp)->sctp_cv); \ 11747c478bd9Sstevel@tonic-gate mutex_exit(&(sctp)->sctp_lock); \ 11757c478bd9Sstevel@tonic-gate } 11767c478bd9Sstevel@tonic-gate 11777c478bd9Sstevel@tonic-gate #ifdef __cplusplus 11787c478bd9Sstevel@tonic-gate } 11797c478bd9Sstevel@tonic-gate #endif 11807c478bd9Sstevel@tonic-gate 11817c478bd9Sstevel@tonic-gate #endif /* _INET_SCTP_SCTP_IMPL_H */ 1182