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 5*558fbd03Skcpoon * Common Development and Distribution License (the "License"). 6*558fbd03Skcpoon * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 22*558fbd03Skcpoon * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 277c478bd9Sstevel@tonic-gate 287c478bd9Sstevel@tonic-gate #include <sys/types.h> 297c478bd9Sstevel@tonic-gate #include <sys/systm.h> 307c478bd9Sstevel@tonic-gate #include <sys/stream.h> 317c478bd9Sstevel@tonic-gate #include <sys/cmn_err.h> 327c478bd9Sstevel@tonic-gate #include <sys/tihdr.h> 337c478bd9Sstevel@tonic-gate #include <sys/kmem.h> 347c478bd9Sstevel@tonic-gate #define _SUN_TPI_VERSION 2 357c478bd9Sstevel@tonic-gate #include <sys/tihdr.h> 367c478bd9Sstevel@tonic-gate #include <sys/socket.h> 377c478bd9Sstevel@tonic-gate 387c478bd9Sstevel@tonic-gate #include <netinet/in.h> 397c478bd9Sstevel@tonic-gate #include <netinet/sctp.h> 407c478bd9Sstevel@tonic-gate 417c478bd9Sstevel@tonic-gate #include <inet/common.h> 427c478bd9Sstevel@tonic-gate #include <inet/ip.h> 437c478bd9Sstevel@tonic-gate #include "sctp_impl.h" 447c478bd9Sstevel@tonic-gate 457c478bd9Sstevel@tonic-gate static void 467c478bd9Sstevel@tonic-gate sctp_notify(sctp_t *sctp, mblk_t *emp, size_t len) 477c478bd9Sstevel@tonic-gate { 487c478bd9Sstevel@tonic-gate struct T_unitdata_ind *tudi; 497c478bd9Sstevel@tonic-gate mblk_t *mp; 507c478bd9Sstevel@tonic-gate sctp_faddr_t *fp; 517c478bd9Sstevel@tonic-gate int32_t rwnd = 0; 527c478bd9Sstevel@tonic-gate 537c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*tudi) + sizeof (void *) + 547c478bd9Sstevel@tonic-gate sizeof (struct sockaddr_in6), BPRI_HI)) == NULL) { 557c478bd9Sstevel@tonic-gate /* XXX trouble: don't want to drop events. should queue it. */ 567c478bd9Sstevel@tonic-gate freemsg(emp); 577c478bd9Sstevel@tonic-gate return; 587c478bd9Sstevel@tonic-gate } 597c478bd9Sstevel@tonic-gate dprint(3, ("sctp_notify: event %d\n", (*(uint16_t *)emp->b_rptr))); 607c478bd9Sstevel@tonic-gate 617c478bd9Sstevel@tonic-gate mp->b_datap->db_type = M_PROTO; 627c478bd9Sstevel@tonic-gate mp->b_flag |= MSGMARK; 637c478bd9Sstevel@tonic-gate mp->b_rptr += sizeof (void *); /* pointer worth of padding */ 647c478bd9Sstevel@tonic-gate 657c478bd9Sstevel@tonic-gate tudi = (struct T_unitdata_ind *)mp->b_rptr; 667c478bd9Sstevel@tonic-gate tudi->PRIM_type = T_UNITDATA_IND; 677c478bd9Sstevel@tonic-gate tudi->SRC_offset = sizeof (*tudi); 687c478bd9Sstevel@tonic-gate tudi->OPT_length = 0; 697c478bd9Sstevel@tonic-gate tudi->OPT_offset = 0; 707c478bd9Sstevel@tonic-gate 717c478bd9Sstevel@tonic-gate fp = sctp->sctp_primary; 727c478bd9Sstevel@tonic-gate ASSERT(fp); 737c478bd9Sstevel@tonic-gate 747c478bd9Sstevel@tonic-gate /* 757c478bd9Sstevel@tonic-gate * Fill in primary remote address. 767c478bd9Sstevel@tonic-gate */ 777c478bd9Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED(&fp->faddr)) { 787c478bd9Sstevel@tonic-gate struct sockaddr_in *sin4; 797c478bd9Sstevel@tonic-gate 807c478bd9Sstevel@tonic-gate tudi->SRC_length = sizeof (*sin4); 817c478bd9Sstevel@tonic-gate sin4 = (struct sockaddr_in *)(tudi + 1); 827c478bd9Sstevel@tonic-gate sin4->sin_family = AF_INET; 837c478bd9Sstevel@tonic-gate sin4->sin_port = sctp->sctp_fport; 847c478bd9Sstevel@tonic-gate IN6_V4MAPPED_TO_IPADDR(&fp->faddr, sin4->sin_addr.s_addr); 857c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sin4 + 1); 867c478bd9Sstevel@tonic-gate } else { 877c478bd9Sstevel@tonic-gate struct sockaddr_in6 *sin6; 887c478bd9Sstevel@tonic-gate 897c478bd9Sstevel@tonic-gate tudi->SRC_length = sizeof (*sin6); 907c478bd9Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)(tudi + 1); 917c478bd9Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 927c478bd9Sstevel@tonic-gate sin6->sin6_port = sctp->sctp_fport; 937c478bd9Sstevel@tonic-gate sin6->sin6_addr = fp->faddr; 947c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sin6 + 1); 957c478bd9Sstevel@tonic-gate } 967c478bd9Sstevel@tonic-gate 977c478bd9Sstevel@tonic-gate mp->b_cont = emp; 987c478bd9Sstevel@tonic-gate 997c478bd9Sstevel@tonic-gate /* 1007c478bd9Sstevel@tonic-gate * Notifications are queued regardless of socket rx space. So 1017c478bd9Sstevel@tonic-gate * we do not decrement sctp_rwnd here as this will confuse the 1027c478bd9Sstevel@tonic-gate * other side. 1037c478bd9Sstevel@tonic-gate */ 1047c478bd9Sstevel@tonic-gate #ifdef DEBUG 1057c478bd9Sstevel@tonic-gate for (emp = mp->b_cont; emp; emp = emp->b_cont) { 1067c478bd9Sstevel@tonic-gate rwnd += emp->b_wptr - emp->b_rptr; 1077c478bd9Sstevel@tonic-gate } 1087c478bd9Sstevel@tonic-gate ASSERT(len == rwnd); 1097c478bd9Sstevel@tonic-gate #endif 1107c478bd9Sstevel@tonic-gate 1117c478bd9Sstevel@tonic-gate rwnd = sctp->sctp_ulp_recv(sctp->sctp_ulpd, mp, SCTP_NOTIFICATION); 1127c478bd9Sstevel@tonic-gate if (rwnd > sctp->sctp_rwnd) { 1137c478bd9Sstevel@tonic-gate sctp->sctp_rwnd = rwnd; 1147c478bd9Sstevel@tonic-gate } 1157c478bd9Sstevel@tonic-gate } 1167c478bd9Sstevel@tonic-gate 1177c478bd9Sstevel@tonic-gate void 1187c478bd9Sstevel@tonic-gate sctp_assoc_event(sctp_t *sctp, uint16_t state, uint16_t error, 1197c478bd9Sstevel@tonic-gate sctp_chunk_hdr_t *ch) 1207c478bd9Sstevel@tonic-gate { 1217c478bd9Sstevel@tonic-gate struct sctp_assoc_change *sacp; 1227c478bd9Sstevel@tonic-gate mblk_t *mp; 1237c478bd9Sstevel@tonic-gate uint16_t ch_len; 1247c478bd9Sstevel@tonic-gate 1257c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvassocevnt) { 1267c478bd9Sstevel@tonic-gate return; 1277c478bd9Sstevel@tonic-gate } 1287c478bd9Sstevel@tonic-gate 1297c478bd9Sstevel@tonic-gate ch_len = (ch != NULL) ? ntohs(ch->sch_len) : 0; 1307c478bd9Sstevel@tonic-gate 1317c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*sacp) + ch_len, BPRI_MED)) == NULL) { 1327c478bd9Sstevel@tonic-gate return; 1337c478bd9Sstevel@tonic-gate } 1347c478bd9Sstevel@tonic-gate 1357c478bd9Sstevel@tonic-gate sacp = (struct sctp_assoc_change *)mp->b_rptr; 1367c478bd9Sstevel@tonic-gate sacp->sac_type = SCTP_ASSOC_CHANGE; 1377c478bd9Sstevel@tonic-gate sacp->sac_flags = sctp->sctp_prsctp_aware ? SCTP_PRSCTP_CAPABLE : 0; 1387c478bd9Sstevel@tonic-gate sacp->sac_length = sizeof (*sacp) + ch_len; 1397c478bd9Sstevel@tonic-gate sacp->sac_state = state; 1407c478bd9Sstevel@tonic-gate sacp->sac_error = error; 1417c478bd9Sstevel@tonic-gate sacp->sac_outbound_streams = sctp->sctp_num_ostr; 1427c478bd9Sstevel@tonic-gate sacp->sac_inbound_streams = sctp->sctp_num_istr; 1437c478bd9Sstevel@tonic-gate sacp->sac_assoc_id = 0; 1447c478bd9Sstevel@tonic-gate 1457c478bd9Sstevel@tonic-gate if (ch != NULL) 1467c478bd9Sstevel@tonic-gate bcopy(ch, sacp + 1, ch_len); 1477c478bd9Sstevel@tonic-gate mp->b_wptr += sacp->sac_length; 1487c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, sacp->sac_length); 1497c478bd9Sstevel@tonic-gate } 1507c478bd9Sstevel@tonic-gate 1517c478bd9Sstevel@tonic-gate /* 1527c478bd9Sstevel@tonic-gate * Send failure event. Message is expected to have message header still 1537c478bd9Sstevel@tonic-gate * in place, data follows in subsequent mblk's. 1547c478bd9Sstevel@tonic-gate */ 1557c478bd9Sstevel@tonic-gate static void 1567c478bd9Sstevel@tonic-gate sctp_sendfail(sctp_t *sctp, mblk_t *msghdr, uint16_t flags, int error) 1577c478bd9Sstevel@tonic-gate { 1587c478bd9Sstevel@tonic-gate struct sctp_send_failed *sfp; 1597c478bd9Sstevel@tonic-gate mblk_t *mp; 1607c478bd9Sstevel@tonic-gate sctp_msg_hdr_t *smh; 1617c478bd9Sstevel@tonic-gate 1627c478bd9Sstevel@tonic-gate /* Allocate a mblk for the notification header */ 1637c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*sfp), BPRI_MED)) == NULL) { 1647c478bd9Sstevel@tonic-gate /* give up */ 1657c478bd9Sstevel@tonic-gate freemsg(msghdr); 1667c478bd9Sstevel@tonic-gate return; 1677c478bd9Sstevel@tonic-gate } 1687c478bd9Sstevel@tonic-gate 1697c478bd9Sstevel@tonic-gate smh = (sctp_msg_hdr_t *)msghdr->b_rptr; 1707c478bd9Sstevel@tonic-gate sfp = (struct sctp_send_failed *)mp->b_rptr; 1717c478bd9Sstevel@tonic-gate sfp->ssf_type = SCTP_SEND_FAILED; 1727c478bd9Sstevel@tonic-gate sfp->ssf_flags = flags; 1737c478bd9Sstevel@tonic-gate sfp->ssf_length = smh->smh_msglen + sizeof (*sfp); 1747c478bd9Sstevel@tonic-gate sfp->ssf_error = error; 1757c478bd9Sstevel@tonic-gate sfp->ssf_assoc_id = 0; 1767c478bd9Sstevel@tonic-gate 1777c478bd9Sstevel@tonic-gate bzero(&sfp->ssf_info, sizeof (sfp->ssf_info)); 1787c478bd9Sstevel@tonic-gate sfp->ssf_info.sinfo_stream = smh->smh_sid; 1797c478bd9Sstevel@tonic-gate sfp->ssf_info.sinfo_flags = smh->smh_flags; 1807c478bd9Sstevel@tonic-gate sfp->ssf_info.sinfo_ppid = smh->smh_ppid; 1817c478bd9Sstevel@tonic-gate sfp->ssf_info.sinfo_context = smh->smh_context; 1827c478bd9Sstevel@tonic-gate sfp->ssf_info.sinfo_timetolive = TICK_TO_MSEC(smh->smh_ttl); 1837c478bd9Sstevel@tonic-gate 1847c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sfp + 1); 1857c478bd9Sstevel@tonic-gate mp->b_cont = msghdr->b_cont; 1867c478bd9Sstevel@tonic-gate 1877c478bd9Sstevel@tonic-gate freeb(msghdr); 1887c478bd9Sstevel@tonic-gate 1897c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, sfp->ssf_length); 1907c478bd9Sstevel@tonic-gate 1917c478bd9Sstevel@tonic-gate } 1927c478bd9Sstevel@tonic-gate 1937c478bd9Sstevel@tonic-gate /* 1947c478bd9Sstevel@tonic-gate * Send failure when the message has been fully chunkified. 1957c478bd9Sstevel@tonic-gate */ 1967c478bd9Sstevel@tonic-gate static void 1977c478bd9Sstevel@tonic-gate sctp_sendfail_sent(sctp_t *sctp, mblk_t *meta, int error) 1987c478bd9Sstevel@tonic-gate { 1997c478bd9Sstevel@tonic-gate mblk_t *mp; 2007c478bd9Sstevel@tonic-gate mblk_t *nmp; 2017c478bd9Sstevel@tonic-gate mblk_t *tail; 2027c478bd9Sstevel@tonic-gate uint16_t flags = SCTP_DATA_SENT; 2037c478bd9Sstevel@tonic-gate 2047c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvsendfailevnt) { 2057c478bd9Sstevel@tonic-gate sctp_free_msg(meta); 2067c478bd9Sstevel@tonic-gate return; 2077c478bd9Sstevel@tonic-gate } 2087c478bd9Sstevel@tonic-gate 2097c478bd9Sstevel@tonic-gate /* 2107c478bd9Sstevel@tonic-gate * We need to remove all data_hdr's. 2117c478bd9Sstevel@tonic-gate */ 2127c478bd9Sstevel@tonic-gate nmp = meta->b_cont; 2137c478bd9Sstevel@tonic-gate tail = meta; 2147c478bd9Sstevel@tonic-gate do { 2157c478bd9Sstevel@tonic-gate mp = nmp->b_next; 2167c478bd9Sstevel@tonic-gate nmp->b_next = NULL; 2177c478bd9Sstevel@tonic-gate 2187c478bd9Sstevel@tonic-gate /* 2197c478bd9Sstevel@tonic-gate * If one of the chunks hasn't been sent yet, say that 2207c478bd9Sstevel@tonic-gate * the message hasn't been sent. 2217c478bd9Sstevel@tonic-gate */ 2227c478bd9Sstevel@tonic-gate if (!SCTP_CHUNK_ISSENT(nmp)) { 2237c478bd9Sstevel@tonic-gate flags = SCTP_DATA_UNSENT; 2247c478bd9Sstevel@tonic-gate } 2257c478bd9Sstevel@tonic-gate nmp->b_rptr += sizeof (sctp_data_hdr_t); 2267c478bd9Sstevel@tonic-gate if (nmp->b_rptr == nmp->b_wptr) { 2277c478bd9Sstevel@tonic-gate tail->b_cont = nmp->b_cont; 2287c478bd9Sstevel@tonic-gate freeb(nmp); 2297c478bd9Sstevel@tonic-gate } else { 2307c478bd9Sstevel@tonic-gate tail->b_cont = nmp; 2317c478bd9Sstevel@tonic-gate } 2327c478bd9Sstevel@tonic-gate while (tail->b_cont) { 2337c478bd9Sstevel@tonic-gate tail = tail->b_cont; 2347c478bd9Sstevel@tonic-gate } 2357c478bd9Sstevel@tonic-gate } while ((nmp = mp) != NULL); 2367c478bd9Sstevel@tonic-gate 2377c478bd9Sstevel@tonic-gate sctp_sendfail(sctp, meta, flags, error); 2387c478bd9Sstevel@tonic-gate } 2397c478bd9Sstevel@tonic-gate 2407c478bd9Sstevel@tonic-gate /* 2417c478bd9Sstevel@tonic-gate * Send failure when the message hasn't been fully chunkified. 2427c478bd9Sstevel@tonic-gate */ 2437c478bd9Sstevel@tonic-gate void 2447c478bd9Sstevel@tonic-gate sctp_sendfail_event(sctp_t *sctp, mblk_t *meta, int error, boolean_t chunkified) 2457c478bd9Sstevel@tonic-gate { 2467c478bd9Sstevel@tonic-gate mblk_t *mp; 2477c478bd9Sstevel@tonic-gate mblk_t *nmp; 2487c478bd9Sstevel@tonic-gate mblk_t *tail; 2497c478bd9Sstevel@tonic-gate 2507c478bd9Sstevel@tonic-gate if (meta == NULL) 2517c478bd9Sstevel@tonic-gate return; 2527c478bd9Sstevel@tonic-gate 2537c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvsendfailevnt) { 2547c478bd9Sstevel@tonic-gate sctp_free_msg(meta); 2557c478bd9Sstevel@tonic-gate return; 2567c478bd9Sstevel@tonic-gate } 2577c478bd9Sstevel@tonic-gate 2587c478bd9Sstevel@tonic-gate /* If the message is fully chunkified */ 2597c478bd9Sstevel@tonic-gate if (chunkified) { 2607c478bd9Sstevel@tonic-gate sctp_sendfail_sent(sctp, meta, error); 2617c478bd9Sstevel@tonic-gate return; 2627c478bd9Sstevel@tonic-gate } 2637c478bd9Sstevel@tonic-gate /* 2647c478bd9Sstevel@tonic-gate * Message might be partially chunkified, we need to remove 2657c478bd9Sstevel@tonic-gate * all data_hdr's. 2667c478bd9Sstevel@tonic-gate */ 2677c478bd9Sstevel@tonic-gate mp = meta->b_cont; 2687c478bd9Sstevel@tonic-gate tail = meta; 2697c478bd9Sstevel@tonic-gate while ((nmp = mp->b_next) != NULL) { 2707c478bd9Sstevel@tonic-gate mp->b_next = nmp->b_next; 2717c478bd9Sstevel@tonic-gate nmp->b_next = NULL; 2727c478bd9Sstevel@tonic-gate nmp->b_rptr += sizeof (sctp_data_hdr_t); 2737c478bd9Sstevel@tonic-gate if (nmp->b_rptr == nmp->b_wptr) { 2747c478bd9Sstevel@tonic-gate tail->b_cont = nmp->b_cont; 2757c478bd9Sstevel@tonic-gate freeb(nmp); 2767c478bd9Sstevel@tonic-gate } else { 2777c478bd9Sstevel@tonic-gate tail->b_cont = nmp; 2787c478bd9Sstevel@tonic-gate } 2797c478bd9Sstevel@tonic-gate while (tail->b_cont) { 2807c478bd9Sstevel@tonic-gate tail = tail->b_cont; 2817c478bd9Sstevel@tonic-gate } 2827c478bd9Sstevel@tonic-gate } 2837c478bd9Sstevel@tonic-gate tail->b_cont = mp; 2847c478bd9Sstevel@tonic-gate 2857c478bd9Sstevel@tonic-gate sctp_sendfail(sctp, meta, SCTP_DATA_UNSENT, error); 2867c478bd9Sstevel@tonic-gate } 2877c478bd9Sstevel@tonic-gate 2887c478bd9Sstevel@tonic-gate void 2897c478bd9Sstevel@tonic-gate sctp_regift_xmitlist(sctp_t *sctp) 2907c478bd9Sstevel@tonic-gate { 2917c478bd9Sstevel@tonic-gate mblk_t *mp; 2927c478bd9Sstevel@tonic-gate 2937c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvsendfailevnt) { 2947c478bd9Sstevel@tonic-gate return; 2957c478bd9Sstevel@tonic-gate } 2967c478bd9Sstevel@tonic-gate 2977c478bd9Sstevel@tonic-gate while ((mp = sctp->sctp_xmit_head) != NULL) { 2987c478bd9Sstevel@tonic-gate sctp->sctp_xmit_head = mp->b_next; 2997c478bd9Sstevel@tonic-gate mp->b_next = NULL; 3007c478bd9Sstevel@tonic-gate if (sctp->sctp_xmit_head != NULL) 3017c478bd9Sstevel@tonic-gate sctp->sctp_xmit_head->b_prev = NULL; 3027c478bd9Sstevel@tonic-gate sctp_sendfail_event(sctp, mp, 0, B_TRUE); 3037c478bd9Sstevel@tonic-gate } 3047c478bd9Sstevel@tonic-gate while ((mp = sctp->sctp_xmit_unsent) != NULL) { 3057c478bd9Sstevel@tonic-gate sctp->sctp_xmit_unsent = mp->b_next; 3067c478bd9Sstevel@tonic-gate mp->b_next = NULL; 3077c478bd9Sstevel@tonic-gate sctp_sendfail_event(sctp, mp, 0, B_FALSE); 3087c478bd9Sstevel@tonic-gate } 3097c478bd9Sstevel@tonic-gate sctp->sctp_xmit_tail = sctp->sctp_xmit_unsent_tail = NULL; 3107c478bd9Sstevel@tonic-gate sctp->sctp_unacked = sctp->sctp_unsent = 0; 3117c478bd9Sstevel@tonic-gate } 3127c478bd9Sstevel@tonic-gate 3137c478bd9Sstevel@tonic-gate void 3147c478bd9Sstevel@tonic-gate sctp_intf_event(sctp_t *sctp, in6_addr_t addr, int state, int error) 3157c478bd9Sstevel@tonic-gate { 3167c478bd9Sstevel@tonic-gate struct sctp_paddr_change *spc; 3177c478bd9Sstevel@tonic-gate ipaddr_t addr4; 3187c478bd9Sstevel@tonic-gate struct sockaddr_in *sin; 3197c478bd9Sstevel@tonic-gate struct sockaddr_in6 *sin6; 3207c478bd9Sstevel@tonic-gate mblk_t *mp; 3217c478bd9Sstevel@tonic-gate 3227c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvpathevnt) { 3237c478bd9Sstevel@tonic-gate return; 3247c478bd9Sstevel@tonic-gate } 3257c478bd9Sstevel@tonic-gate 3267c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*spc), BPRI_MED)) == NULL) { 3277c478bd9Sstevel@tonic-gate return; 3287c478bd9Sstevel@tonic-gate } 3297c478bd9Sstevel@tonic-gate 3307c478bd9Sstevel@tonic-gate spc = (struct sctp_paddr_change *)mp->b_rptr; 3317c478bd9Sstevel@tonic-gate spc->spc_type = SCTP_PEER_ADDR_CHANGE; 3327c478bd9Sstevel@tonic-gate spc->spc_flags = 0; 3337c478bd9Sstevel@tonic-gate spc->spc_length = sizeof (*spc); 3347c478bd9Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED(&addr)) { 3357c478bd9Sstevel@tonic-gate IN6_V4MAPPED_TO_IPADDR(&addr, addr4); 3367c478bd9Sstevel@tonic-gate sin = (struct sockaddr_in *)&spc->spc_aaddr; 3377c478bd9Sstevel@tonic-gate sin->sin_family = AF_INET; 3387c478bd9Sstevel@tonic-gate sin->sin_port = 0; 3397c478bd9Sstevel@tonic-gate sin->sin_addr.s_addr = addr4; 3407c478bd9Sstevel@tonic-gate } else { 3417c478bd9Sstevel@tonic-gate sin6 = (struct sockaddr_in6 *)&spc->spc_aaddr; 3427c478bd9Sstevel@tonic-gate sin6->sin6_family = AF_INET6; 3437c478bd9Sstevel@tonic-gate sin6->sin6_port = 0; 3447c478bd9Sstevel@tonic-gate sin6->sin6_addr = addr; 3457c478bd9Sstevel@tonic-gate } 3467c478bd9Sstevel@tonic-gate spc->spc_state = state; 3477c478bd9Sstevel@tonic-gate spc->spc_error = error; 3487c478bd9Sstevel@tonic-gate spc->spc_assoc_id = 0; 3497c478bd9Sstevel@tonic-gate 3507c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(spc + 1); 3517c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, spc->spc_length); 3527c478bd9Sstevel@tonic-gate } 3537c478bd9Sstevel@tonic-gate 3547c478bd9Sstevel@tonic-gate void 3557c478bd9Sstevel@tonic-gate sctp_error_event(sctp_t *sctp, sctp_chunk_hdr_t *ch) 3567c478bd9Sstevel@tonic-gate { 3577c478bd9Sstevel@tonic-gate struct sctp_remote_error *sre; 3587c478bd9Sstevel@tonic-gate mblk_t *mp; 3597c478bd9Sstevel@tonic-gate size_t len; 3607c478bd9Sstevel@tonic-gate sctp_parm_hdr_t *errh; 3617c478bd9Sstevel@tonic-gate uint16_t dlen = 0; 3627c478bd9Sstevel@tonic-gate uint16_t error = 0; 3637c478bd9Sstevel@tonic-gate void *dtail = NULL; 3647c478bd9Sstevel@tonic-gate 3657c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvpeererr) { 3667c478bd9Sstevel@tonic-gate return; 3677c478bd9Sstevel@tonic-gate } 3687c478bd9Sstevel@tonic-gate 3697c478bd9Sstevel@tonic-gate if (ntohs(ch->sch_len) > sizeof (*ch)) { 3707c478bd9Sstevel@tonic-gate errh = (sctp_parm_hdr_t *)(ch + 1); 3717c478bd9Sstevel@tonic-gate error = ntohs(errh->sph_type); 3727c478bd9Sstevel@tonic-gate dlen = ntohs(errh->sph_len) - sizeof (*errh); 3737c478bd9Sstevel@tonic-gate if (dlen > 0) { 3747c478bd9Sstevel@tonic-gate dtail = errh + 1; 3757c478bd9Sstevel@tonic-gate } 3767c478bd9Sstevel@tonic-gate } 3777c478bd9Sstevel@tonic-gate 3787c478bd9Sstevel@tonic-gate len = sizeof (*sre) + dlen; 3797c478bd9Sstevel@tonic-gate if ((mp = allocb(len, BPRI_MED)) == NULL) { 3807c478bd9Sstevel@tonic-gate return; 3817c478bd9Sstevel@tonic-gate } 3827c478bd9Sstevel@tonic-gate 3837c478bd9Sstevel@tonic-gate sre = (struct sctp_remote_error *)mp->b_rptr; 3847c478bd9Sstevel@tonic-gate sre->sre_type = SCTP_REMOTE_ERROR; 3857c478bd9Sstevel@tonic-gate sre->sre_flags = 0; 3867c478bd9Sstevel@tonic-gate sre->sre_length = len; 3877c478bd9Sstevel@tonic-gate sre->sre_assoc_id = 0; 3887c478bd9Sstevel@tonic-gate sre->sre_error = error; 3897c478bd9Sstevel@tonic-gate if (dtail) { 3907c478bd9Sstevel@tonic-gate bcopy(dtail, sre + 1, dlen); 3917c478bd9Sstevel@tonic-gate } 3927c478bd9Sstevel@tonic-gate 3937c478bd9Sstevel@tonic-gate mp->b_wptr = mp->b_rptr + len; 3947c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, len); 3957c478bd9Sstevel@tonic-gate } 3967c478bd9Sstevel@tonic-gate 3977c478bd9Sstevel@tonic-gate void 3987c478bd9Sstevel@tonic-gate sctp_shutdown_event(sctp_t *sctp) 3997c478bd9Sstevel@tonic-gate { 4007c478bd9Sstevel@tonic-gate struct sctp_shutdown_event *sse; 4017c478bd9Sstevel@tonic-gate mblk_t *mp; 4027c478bd9Sstevel@tonic-gate 4037c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvshutdownevnt) { 4047c478bd9Sstevel@tonic-gate return; 4057c478bd9Sstevel@tonic-gate } 4067c478bd9Sstevel@tonic-gate 4077c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*sse), BPRI_MED)) == NULL) { 4087c478bd9Sstevel@tonic-gate return; 4097c478bd9Sstevel@tonic-gate } 4107c478bd9Sstevel@tonic-gate 4117c478bd9Sstevel@tonic-gate sse = (struct sctp_shutdown_event *)mp->b_rptr; 4127c478bd9Sstevel@tonic-gate sse->sse_type = SCTP_SHUTDOWN_EVENT; 4137c478bd9Sstevel@tonic-gate sse->sse_flags = 0; 4147c478bd9Sstevel@tonic-gate sse->sse_length = sizeof (*sse); 4157c478bd9Sstevel@tonic-gate sse->sse_assoc_id = 0; 4167c478bd9Sstevel@tonic-gate 4177c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sse + 1); 4187c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, sse->sse_length); 4197c478bd9Sstevel@tonic-gate } 4207c478bd9Sstevel@tonic-gate 4217c478bd9Sstevel@tonic-gate void 422*558fbd03Skcpoon sctp_adaptation_event(sctp_t *sctp) 4237c478bd9Sstevel@tonic-gate { 424*558fbd03Skcpoon struct sctp_adaptation_event *sai; 4257c478bd9Sstevel@tonic-gate mblk_t *mp; 4267c478bd9Sstevel@tonic-gate 427*558fbd03Skcpoon if (!sctp->sctp_recvalevnt || !sctp->sctp_recv_adaptation) { 4287c478bd9Sstevel@tonic-gate return; 4297c478bd9Sstevel@tonic-gate } 4307c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*sai), BPRI_MED)) == NULL) { 4317c478bd9Sstevel@tonic-gate return; 4327c478bd9Sstevel@tonic-gate } 4337c478bd9Sstevel@tonic-gate 434*558fbd03Skcpoon sai = (struct sctp_adaptation_event *)mp->b_rptr; 435*558fbd03Skcpoon sai->sai_type = SCTP_ADAPTATION_INDICATION; 4367c478bd9Sstevel@tonic-gate sai->sai_flags = 0; 4377c478bd9Sstevel@tonic-gate sai->sai_length = sizeof (*sai); 4387c478bd9Sstevel@tonic-gate sai->sai_assoc_id = 0; 4397c478bd9Sstevel@tonic-gate /* 4407c478bd9Sstevel@tonic-gate * Adaptation code delivered in network byte order. 4417c478bd9Sstevel@tonic-gate */ 442*558fbd03Skcpoon sai->sai_adaptation_ind = sctp->sctp_rx_adaptation_code; 4437c478bd9Sstevel@tonic-gate 4447c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(sai + 1); 4457c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, sai->sai_length); 4467c478bd9Sstevel@tonic-gate 447*558fbd03Skcpoon sctp->sctp_recv_adaptation = 0; /* in case there's a restart later */ 4487c478bd9Sstevel@tonic-gate } 4497c478bd9Sstevel@tonic-gate 4507c478bd9Sstevel@tonic-gate /* Send partial deliver event */ 4517c478bd9Sstevel@tonic-gate void 4527c478bd9Sstevel@tonic-gate sctp_partial_delivery_event(sctp_t *sctp) 4537c478bd9Sstevel@tonic-gate { 4547c478bd9Sstevel@tonic-gate struct sctp_pdapi_event *pdapi; 4557c478bd9Sstevel@tonic-gate mblk_t *mp; 4567c478bd9Sstevel@tonic-gate 4577c478bd9Sstevel@tonic-gate if (!sctp->sctp_recvpdevnt) 4587c478bd9Sstevel@tonic-gate return; 4597c478bd9Sstevel@tonic-gate 4607c478bd9Sstevel@tonic-gate if ((mp = allocb(sizeof (*pdapi), BPRI_MED)) == NULL) 4617c478bd9Sstevel@tonic-gate return; 4627c478bd9Sstevel@tonic-gate 4637c478bd9Sstevel@tonic-gate pdapi = (struct sctp_pdapi_event *)mp->b_rptr; 4647c478bd9Sstevel@tonic-gate pdapi->pdapi_type = SCTP_PARTIAL_DELIVERY_EVENT; 4657c478bd9Sstevel@tonic-gate pdapi->pdapi_flags = 0; 4667c478bd9Sstevel@tonic-gate pdapi->pdapi_length = sizeof (*pdapi); 4677c478bd9Sstevel@tonic-gate pdapi->pdapi_indication = SCTP_PARTIAL_DELIVERY_ABORTED; 4687c478bd9Sstevel@tonic-gate pdapi->pdapi_assoc_id = 0; 4697c478bd9Sstevel@tonic-gate mp->b_wptr = (uchar_t *)(pdapi + 1); 4707c478bd9Sstevel@tonic-gate sctp_notify(sctp, mp, pdapi->pdapi_length); 4717c478bd9Sstevel@tonic-gate } 472