sctp6_usrreq.c revision 228907
1163953Srrs/*- 2169382Srrs * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved. 3218319Srrs * Copyright (c) 2008-2011, by Randall Stewart. All rights reserved. 4218319Srrs * Copyright (c) 2008-2011, by Michael Tuexen. All rights reserved. 5163953Srrs * 6163953Srrs * Redistribution and use in source and binary forms, with or without 7163953Srrs * modification, are permitted provided that the following conditions are met: 8163953Srrs * 9163953Srrs * a) Redistributions of source code must retain the above copyright notice, 10228653Stuexen * this list of conditions and the following disclaimer. 11163953Srrs * 12163953Srrs * b) Redistributions in binary form must reproduce the above copyright 13163953Srrs * notice, this list of conditions and the following disclaimer in 14228653Stuexen * the documentation and/or other materials provided with the distribution. 15163953Srrs * 16163953Srrs * c) Neither the name of Cisco Systems, Inc. nor the names of its 17163953Srrs * contributors may be used to endorse or promote products derived 18163953Srrs * from this software without specific prior written permission. 19163953Srrs * 20163953Srrs * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21163953Srrs * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 22163953Srrs * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23163953Srrs * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24163953Srrs * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25163953Srrs * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26163953Srrs * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27163953Srrs * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28163953Srrs * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29163953Srrs * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30163953Srrs * THE POSSIBILITY OF SUCH DAMAGE. 31163953Srrs */ 32163953Srrs/* $KAME: sctp6_usrreq.c,v 1.38 2005/08/24 08:08:56 suz Exp $ */ 33174510Sobrien 34163954Srrs#include <sys/cdefs.h> 35163953Srrs__FBSDID("$FreeBSD: head/sys/netinet6/sctp6_usrreq.c 228907 2011-12-27 10:16:24Z tuexen $"); 36163953Srrs 37166086Srrs#include <netinet/sctp_os.h> 38163953Srrs#include <sys/proc.h> 39163953Srrs#include <netinet/sctp_pcb.h> 40163953Srrs#include <netinet/sctp_header.h> 41163953Srrs#include <netinet/sctp_var.h> 42168709Srrs#if defined(INET6) 43168709Srrs#include <netinet6/sctp6_var.h> 44168709Srrs#endif 45167598Srrs#include <netinet/sctp_sysctl.h> 46163953Srrs#include <netinet/sctp_output.h> 47166086Srrs#include <netinet/sctp_uio.h> 48163953Srrs#include <netinet/sctp_asconf.h> 49166086Srrs#include <netinet/sctputil.h> 50166086Srrs#include <netinet/sctp_indata.h> 51166086Srrs#include <netinet/sctp_timer.h> 52166086Srrs#include <netinet/sctp_auth.h> 53168709Srrs#include <netinet/sctp_input.h> 54168709Srrs#include <netinet/sctp_output.h> 55170091Srrs#include <netinet/sctp_bsd_addr.h> 56188067Srrs#include <netinet/sctp_crc32.h> 57179783Srrs#include <netinet/udp.h> 58163953Srrs 59171167Sgnn#ifdef IPSEC 60171133Sgnn#include <netipsec/ipsec.h> 61171133Sgnn#if defined(INET6) 62171133Sgnn#include <netipsec/ipsec6.h> 63171440Srrs#endif /* INET6 */ 64171440Srrs#endif /* IPSEC */ 65163953Srrs 66163953Srrsextern struct protosw inetsw[]; 67163953Srrs 68163953Srrsint 69171259Sdelphijsctp6_input(struct mbuf **i_pak, int *offp, int proto) 70163953Srrs{ 71165647Srrs struct mbuf *m; 72163953Srrs struct ip6_hdr *ip6; 73163953Srrs struct sctphdr *sh; 74163953Srrs struct sctp_inpcb *in6p = NULL; 75163953Srrs struct sctp_nets *net; 76163953Srrs int refcount_up = 0; 77170181Srrs uint32_t vrf_id = 0; 78212699Stuexen 79212699Stuexen#ifdef IPSEC 80163953Srrs struct inpcb *in6p_ip; 81212699Stuexen 82212699Stuexen#endif 83163953Srrs struct sctp_chunkhdr *ch; 84188067Srrs int length, offset, iphlen; 85168299Srrs uint8_t ecn_bits; 86163953Srrs struct sctp_tcb *stcb = NULL; 87170056Srrs int pkt_len = 0; 88211969Stuexen 89211969Stuexen#if !defined(SCTP_WITH_NO_CSUM) 90211969Stuexen uint32_t check, calc_check; 91211969Stuexen 92211969Stuexen#endif 93163953Srrs int off = *offp; 94179783Srrs uint16_t port = 0; 95163953Srrs 96169352Srrs /* get the VRF and table id's */ 97169352Srrs if (SCTP_GET_PKT_VRFID(*i_pak, vrf_id)) { 98169352Srrs SCTP_RELEASE_PKT(*i_pak); 99169352Srrs return (-1); 100169352Srrs } 101168709Srrs m = SCTP_HEADER_TO_CHAIN(*i_pak); 102170056Srrs pkt_len = SCTP_HEADER_LEN((*i_pak)); 103165647Srrs 104170091Srrs#ifdef SCTP_PACKET_LOGGING 105170091Srrs sctp_packet_log(m, pkt_len); 106170091Srrs#endif 107163953Srrs ip6 = mtod(m, struct ip6_hdr *); 108163953Srrs /* Ensure that (sctphdr + sctp_chunkhdr) in a row. */ 109170056Srrs IP6_EXTHDR_GET(sh, struct sctphdr *, m, off, 110170056Srrs (int)(sizeof(*sh) + sizeof(*ch))); 111163953Srrs if (sh == NULL) { 112163953Srrs SCTP_STAT_INCR(sctps_hdrops); 113228907Stuexen return (IPPROTO_DONE); 114163953Srrs } 115163953Srrs ch = (struct sctp_chunkhdr *)((caddr_t)sh + sizeof(struct sctphdr)); 116163953Srrs iphlen = off; 117163953Srrs offset = iphlen + sizeof(*sh) + sizeof(*ch); 118170859Srrs SCTPDBG(SCTP_DEBUG_INPUT1, 119170859Srrs "sctp6_input() length:%d iphlen:%d\n", pkt_len, iphlen); 120163953Srrs 121170859Srrs 122163953Srrs#if defined(NFAITH) && NFAITH > 0 123163953Srrs 124163953Srrs if (faithprefix_p != NULL && (*faithprefix_p) (&ip6->ip6_dst)) { 125163953Srrs /* XXX send icmp6 host/port unreach? */ 126163953Srrs goto bad; 127163953Srrs } 128163953Srrs#endif /* NFAITH defined and > 0 */ 129163953Srrs SCTP_STAT_INCR(sctps_recvpackets); 130163953Srrs SCTP_STAT_INCR_COUNTER64(sctps_inpackets); 131169420Srrs SCTPDBG(SCTP_DEBUG_INPUT1, "V6 input gets a packet iphlen:%d pktlen:%d\n", 132170056Srrs iphlen, pkt_len); 133163953Srrs if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst)) { 134163953Srrs /* No multi-cast support in SCTP */ 135163953Srrs goto bad; 136163953Srrs } 137163953Srrs /* destination port of 0 is illegal, based on RFC2960. */ 138163953Srrs if (sh->dest_port == 0) 139163953Srrs goto bad; 140188067Srrs 141188067Srrs SCTPDBG(SCTP_DEBUG_CRCOFFLOAD, 142188067Srrs "sctp_input(): Packet of length %d received on %s with csum_flags 0x%x.\n", 143188067Srrs m->m_pkthdr.len, 144188067Srrs if_name(m->m_pkthdr.rcvif), 145188067Srrs m->m_pkthdr.csum_flags); 146211969Stuexen#if defined(SCTP_WITH_NO_CSUM) 147211969Stuexen SCTP_STAT_INCR(sctps_recvnocrc); 148211969Stuexen#else 149188067Srrs if (m->m_pkthdr.csum_flags & CSUM_SCTP_VALID) { 150188067Srrs SCTP_STAT_INCR(sctps_recvhwcrc); 151188067Srrs goto sctp_skip_csum; 152188067Srrs } 153171990Srrs check = sh->checksum; /* save incoming checksum */ 154179783Srrs if ((check == 0) && (SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback)) && 155171990Srrs (IN6_ARE_ADDR_EQUAL(&ip6->ip6_src, &ip6->ip6_dst))) { 156188067Srrs SCTP_STAT_INCR(sctps_recvnocrc); 157171990Srrs goto sctp_skip_csum; 158171990Srrs } 159171990Srrs sh->checksum = 0; /* prepare for calc */ 160188067Srrs calc_check = sctp_calculate_cksum(m, iphlen); 161188067Srrs SCTP_STAT_INCR(sctps_recvswcrc); 162171990Srrs if (calc_check != check) { 163188067Srrs SCTPDBG(SCTP_DEBUG_INPUT1, "Bad CSUM on SCTP packet calc_check:%x check:%x m:%p phlen:%d\n", 164188067Srrs calc_check, check, m, iphlen); 165228653Stuexen stcb = sctp_findassociation_addr(m, offset - sizeof(*ch), 166171990Srrs sh, ch, &in6p, &net, vrf_id); 167179783Srrs if ((net) && (port)) { 168179783Srrs if (net->port == 0) { 169228653Stuexen sctp_pathmtu_adjustment(stcb, net->mtu - sizeof(struct udphdr)); 170179783Srrs } 171179783Srrs net->port = port; 172179783Srrs } 173218400Stuexen if ((net != NULL) && (m->m_flags & M_FLOWID)) { 174218400Stuexen net->flowid = m->m_pkthdr.flowid; 175218400Stuexen#ifdef INVARIANTS 176218400Stuexen net->flowidset = 1; 177218400Stuexen#endif 178218400Stuexen } 179171990Srrs /* in6p's ref-count increased && stcb locked */ 180171990Srrs if ((in6p) && (stcb)) { 181171990Srrs sctp_send_packet_dropped(stcb, net, m, iphlen, 1); 182172090Srrs sctp_chunk_output((struct sctp_inpcb *)in6p, stcb, SCTP_OUTPUT_FROM_INPUT_ERROR, SCTP_SO_NOT_LOCKED); 183171990Srrs } else if ((in6p != NULL) && (stcb == NULL)) { 184171990Srrs refcount_up = 1; 185163953Srrs } 186171990Srrs SCTP_STAT_INCR(sctps_badsum); 187171990Srrs SCTP_STAT_INCR_COUNTER32(sctps_checksumerrors); 188171990Srrs goto bad; 189165647Srrs } 190171990Srrs sh->checksum = calc_check; 191171990Srrs 192163953Srrssctp_skip_csum: 193211969Stuexen#endif 194163953Srrs net = NULL; 195163953Srrs /* 196163953Srrs * Locate pcb and tcb for datagram sctp_findassociation_addr() wants 197163953Srrs * IP/SCTP/first chunk header... 198163953Srrs */ 199228653Stuexen stcb = sctp_findassociation_addr(m, offset - sizeof(*ch), 200168299Srrs sh, ch, &in6p, &net, vrf_id); 201179783Srrs if ((net) && (port)) { 202179783Srrs if (net->port == 0) { 203228653Stuexen sctp_pathmtu_adjustment(stcb, net->mtu - sizeof(struct udphdr)); 204179783Srrs } 205179783Srrs net->port = port; 206179783Srrs } 207218400Stuexen if ((net != NULL) && (m->m_flags & M_FLOWID)) { 208218400Stuexen net->flowid = m->m_pkthdr.flowid; 209218400Stuexen#ifdef INVARIANTS 210218400Stuexen net->flowidset = 1; 211218400Stuexen#endif 212218400Stuexen } 213163953Srrs /* in6p's ref-count increased */ 214163953Srrs if (in6p == NULL) { 215163953Srrs struct sctp_init_chunk *init_chk, chunk_buf; 216163953Srrs 217163953Srrs SCTP_STAT_INCR(sctps_noport); 218163953Srrs if (ch->chunk_type == SCTP_INITIATION) { 219163953Srrs /* 220163953Srrs * we do a trick here to get the INIT tag, dig in 221163953Srrs * and get the tag from the INIT and put it in the 222163953Srrs * common header. 223163953Srrs */ 224163953Srrs init_chk = (struct sctp_init_chunk *)sctp_m_getptr(m, 225163953Srrs iphlen + sizeof(*sh), sizeof(*init_chk), 226168299Srrs (uint8_t *) & chunk_buf); 227169420Srrs if (init_chk) 228169420Srrs sh->v_tag = init_chk->init.initiate_tag; 229169420Srrs else 230169420Srrs sh->v_tag = 0; 231163953Srrs } 232165220Srrs if (ch->chunk_type == SCTP_SHUTDOWN_ACK) { 233228653Stuexen sctp_send_shutdown_complete2(m, sh, vrf_id, port); 234165220Srrs goto bad; 235165220Srrs } 236165220Srrs if (ch->chunk_type == SCTP_SHUTDOWN_COMPLETE) { 237165220Srrs goto bad; 238165220Srrs } 239165220Srrs if (ch->chunk_type != SCTP_ABORT_ASSOCIATION) 240179783Srrs sctp_send_abort(m, iphlen, sh, 0, NULL, vrf_id, port); 241163953Srrs goto bad; 242163953Srrs } else if (stcb == NULL) { 243163953Srrs refcount_up = 1; 244163953Srrs } 245171167Sgnn#ifdef IPSEC 246163953Srrs /* 247163953Srrs * Check AH/ESP integrity. 248163953Srrs */ 249212699Stuexen in6p_ip = (struct inpcb *)in6p; 250163996Srrs if (in6p_ip && (ipsec6_in_reject(m, in6p_ip))) { 251163953Srrs/* XXX */ 252197288Srrs MODULE_GLOBAL(ipsec6stat).in_polvio++; 253163953Srrs goto bad; 254163996Srrs } 255171440Srrs#endif /* IPSEC */ 256163953Srrs 257163953Srrs /* 258163953Srrs * CONTROL chunk processing 259163953Srrs */ 260163953Srrs offset -= sizeof(*ch); 261163953Srrs ecn_bits = ((ntohl(ip6->ip6_flow) >> 20) & 0x000000ff); 262165647Srrs 263165647Srrs /* Length now holds the total packet length payload + iphlen */ 264165647Srrs length = ntohs(ip6->ip6_plen) + iphlen; 265165647Srrs 266169655Srrs /* sa_ignore NO_NULL_CHK */ 267169378Srrs sctp_common_input_processing(&m, iphlen, offset, length, sh, ch, 268179783Srrs in6p, stcb, net, ecn_bits, vrf_id, port); 269163953Srrs /* inp's ref-count reduced && stcb unlocked */ 270163953Srrs /* XXX this stuff below gets moved to appropriate parts later... */ 271163953Srrs if (m) 272169352Srrs sctp_m_freem(m); 273163953Srrs if ((in6p) && refcount_up) { 274163953Srrs /* reduce ref-count */ 275163953Srrs SCTP_INP_WLOCK(in6p); 276163953Srrs SCTP_INP_DECR_REF(in6p); 277163953Srrs SCTP_INP_WUNLOCK(in6p); 278163953Srrs } 279228907Stuexen return (IPPROTO_DONE); 280163953Srrs 281163953Srrsbad: 282169420Srrs if (stcb) { 283163953Srrs SCTP_TCB_UNLOCK(stcb); 284169420Srrs } 285163953Srrs if ((in6p) && refcount_up) { 286163953Srrs /* reduce ref-count */ 287163953Srrs SCTP_INP_WLOCK(in6p); 288163953Srrs SCTP_INP_DECR_REF(in6p); 289163953Srrs SCTP_INP_WUNLOCK(in6p); 290163953Srrs } 291163953Srrs if (m) 292169352Srrs sctp_m_freem(m); 293228907Stuexen return (IPPROTO_DONE); 294163953Srrs} 295163953Srrs 296163953Srrs 297163953Srrsstatic void 298171259Sdelphijsctp6_notify_mbuf(struct sctp_inpcb *inp, struct icmp6_hdr *icmp6, 299171259Sdelphij struct sctphdr *sh, struct sctp_tcb *stcb, struct sctp_nets *net) 300163953Srrs{ 301168299Srrs uint32_t nxtsz; 302163953Srrs 303163953Srrs if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 304163953Srrs (icmp6 == NULL) || (sh == NULL)) { 305163953Srrs goto out; 306163953Srrs } 307163953Srrs /* First do we even look at it? */ 308163953Srrs if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) 309163953Srrs goto out; 310163953Srrs 311163953Srrs if (icmp6->icmp6_type != ICMP6_PACKET_TOO_BIG) { 312163953Srrs /* not PACKET TO BIG */ 313163953Srrs goto out; 314163953Srrs } 315163953Srrs /* 316163953Srrs * ok we need to look closely. We could even get smarter and look at 317163953Srrs * anyone that we sent to in case we get a different ICMP that tells 318163953Srrs * us there is no way to reach a host, but for this impl, all we 319163953Srrs * care about is MTU discovery. 320163953Srrs */ 321163953Srrs nxtsz = ntohl(icmp6->icmp6_mtu); 322163953Srrs /* Stop any PMTU timer */ 323165220Srrs sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, NULL, SCTP_FROM_SCTP6_USRREQ + SCTP_LOC_1); 324163953Srrs 325163953Srrs /* Adjust destination size limit */ 326163953Srrs if (net->mtu > nxtsz) { 327163953Srrs net->mtu = nxtsz; 328185694Srrs if (net->port) { 329185694Srrs net->mtu -= sizeof(struct udphdr); 330185694Srrs } 331163953Srrs } 332163953Srrs /* now what about the ep? */ 333163953Srrs if (stcb->asoc.smallest_mtu > nxtsz) { 334163953Srrs struct sctp_tmit_chunk *chk; 335163953Srrs 336163953Srrs /* Adjust that too */ 337163953Srrs stcb->asoc.smallest_mtu = nxtsz; 338163953Srrs /* now off to subtract IP_DF flag if needed */ 339163953Srrs 340163953Srrs TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) { 341168299Srrs if ((uint32_t) (chk->send_size + IP_HDR_SIZE) > nxtsz) { 342163953Srrs chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 343163953Srrs } 344163953Srrs } 345163953Srrs TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { 346168299Srrs if ((uint32_t) (chk->send_size + IP_HDR_SIZE) > nxtsz) { 347163953Srrs /* 348163953Srrs * For this guy we also mark for immediate 349163953Srrs * resend since we sent to big of chunk 350163953Srrs */ 351163953Srrs chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 352163953Srrs if (chk->sent != SCTP_DATAGRAM_RESEND) 353163953Srrs stcb->asoc.sent_queue_retran_cnt++; 354163953Srrs chk->sent = SCTP_DATAGRAM_RESEND; 355163953Srrs chk->rec.data.doing_fast_retransmit = 0; 356163953Srrs 357163953Srrs chk->sent = SCTP_DATAGRAM_RESEND; 358163953Srrs /* Clear any time so NO RTT is being done */ 359163953Srrs chk->sent_rcv_time.tv_sec = 0; 360163953Srrs chk->sent_rcv_time.tv_usec = 0; 361163953Srrs stcb->asoc.total_flight -= chk->send_size; 362163953Srrs net->flight_size -= chk->send_size; 363163953Srrs } 364163953Srrs } 365163953Srrs } 366163953Srrs sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, NULL); 367163953Srrsout: 368169420Srrs if (stcb) { 369163953Srrs SCTP_TCB_UNLOCK(stcb); 370169420Srrs } 371163953Srrs} 372163953Srrs 373163953Srrs 374172156Srrsvoid 375172091Srrssctp6_notify(struct sctp_inpcb *inp, 376172091Srrs struct icmp6_hdr *icmph, 377172091Srrs struct sctphdr *sh, 378172091Srrs struct sockaddr *to, 379172091Srrs struct sctp_tcb *stcb, 380172091Srrs struct sctp_nets *net) 381172091Srrs{ 382172091Srrs#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 383172091Srrs struct socket *so; 384172091Srrs 385172091Srrs#endif 386172091Srrs /* protection */ 387172091Srrs int reason; 388172091Srrs 389172091Srrs 390172091Srrs if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 391172091Srrs (sh == NULL) || (to == NULL)) { 392172091Srrs if (stcb) 393172091Srrs SCTP_TCB_UNLOCK(stcb); 394172091Srrs return; 395172091Srrs } 396172091Srrs /* First job is to verify the vtag matches what I would send */ 397172091Srrs if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 398172091Srrs SCTP_TCB_UNLOCK(stcb); 399172091Srrs return; 400172091Srrs } 401172091Srrs if (icmph->icmp6_type != ICMP_UNREACH) { 402172091Srrs /* We only care about unreachable */ 403172091Srrs SCTP_TCB_UNLOCK(stcb); 404172091Srrs return; 405172091Srrs } 406172091Srrs if ((icmph->icmp6_code == ICMP_UNREACH_NET) || 407172091Srrs (icmph->icmp6_code == ICMP_UNREACH_HOST) || 408172091Srrs (icmph->icmp6_code == ICMP_UNREACH_NET_UNKNOWN) || 409172091Srrs (icmph->icmp6_code == ICMP_UNREACH_HOST_UNKNOWN) || 410172091Srrs (icmph->icmp6_code == ICMP_UNREACH_ISOLATED) || 411172091Srrs (icmph->icmp6_code == ICMP_UNREACH_NET_PROHIB) || 412172091Srrs (icmph->icmp6_code == ICMP_UNREACH_HOST_PROHIB) || 413172091Srrs (icmph->icmp6_code == ICMP_UNREACH_FILTER_PROHIB)) { 414172091Srrs 415172091Srrs /* 416172091Srrs * Hmm reachablity problems we must examine closely. If its 417172091Srrs * not reachable, we may have lost a network. Or if there is 418172091Srrs * NO protocol at the other end named SCTP. well we consider 419172091Srrs * it a OOTB abort. 420172091Srrs */ 421172091Srrs if (net->dest_state & SCTP_ADDR_REACHABLE) { 422172091Srrs /* Ok that destination is NOT reachable */ 423172091Srrs net->dest_state &= ~SCTP_ADDR_REACHABLE; 424224641Stuexen net->dest_state &= ~SCTP_ADDR_PF; 425172091Srrs sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, 426172091Srrs stcb, SCTP_FAILED_THRESHOLD, 427172091Srrs (void *)net, SCTP_SO_NOT_LOCKED); 428172091Srrs } 429172091Srrs SCTP_TCB_UNLOCK(stcb); 430172091Srrs } else if ((icmph->icmp6_code == ICMP_UNREACH_PROTOCOL) || 431172091Srrs (icmph->icmp6_code == ICMP_UNREACH_PORT)) { 432172091Srrs /* 433172091Srrs * Here the peer is either playing tricks on us, including 434172091Srrs * an address that belongs to someone who does not support 435172091Srrs * SCTP OR was a userland implementation that shutdown and 436172091Srrs * now is dead. In either case treat it like a OOTB abort 437172091Srrs * with no TCB 438172091Srrs */ 439172091Srrs reason = SCTP_PEER_FAULTY; 440172091Srrs sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED); 441172091Srrs#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 442172091Srrs so = SCTP_INP_SO(inp); 443172091Srrs atomic_add_int(&stcb->asoc.refcnt, 1); 444172091Srrs SCTP_TCB_UNLOCK(stcb); 445172091Srrs SCTP_SOCKET_LOCK(so, 1); 446172091Srrs SCTP_TCB_LOCK(stcb); 447172091Srrs atomic_subtract_int(&stcb->asoc.refcnt, 1); 448172091Srrs#endif 449172091Srrs (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2); 450172091Srrs#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 451172091Srrs SCTP_SOCKET_UNLOCK(so, 1); 452172091Srrs /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */ 453172091Srrs#endif 454172091Srrs /* no need to unlock here, since the TCB is gone */ 455172091Srrs } else { 456172091Srrs SCTP_TCB_UNLOCK(stcb); 457172091Srrs } 458172091Srrs} 459172091Srrs 460172091Srrs 461172091Srrs 462163953Srrsvoid 463171259Sdelphijsctp6_ctlinput(int cmd, struct sockaddr *pktdst, void *d) 464163953Srrs{ 465163953Srrs struct sctphdr sh; 466163953Srrs struct ip6ctlparam *ip6cp = NULL; 467167598Srrs uint32_t vrf_id; 468163953Srrs 469167598Srrs vrf_id = SCTP_DEFAULT_VRFID; 470167598Srrs 471163953Srrs if (pktdst->sa_family != AF_INET6 || 472163953Srrs pktdst->sa_len != sizeof(struct sockaddr_in6)) 473163953Srrs return; 474163953Srrs 475163953Srrs if ((unsigned)cmd >= PRC_NCMDS) 476163953Srrs return; 477163953Srrs if (PRC_IS_REDIRECT(cmd)) { 478163953Srrs d = NULL; 479163953Srrs } else if (inet6ctlerrmap[cmd] == 0) { 480163953Srrs return; 481163953Srrs } 482163953Srrs /* if the parameter is from icmp6, decode it. */ 483163953Srrs if (d != NULL) { 484163953Srrs ip6cp = (struct ip6ctlparam *)d; 485163953Srrs } else { 486163953Srrs ip6cp = (struct ip6ctlparam *)NULL; 487163953Srrs } 488163953Srrs 489163953Srrs if (ip6cp) { 490163953Srrs /* 491163953Srrs * XXX: We assume that when IPV6 is non NULL, M and OFF are 492163953Srrs * valid. 493163953Srrs */ 494163953Srrs /* check if we can safely examine src and dst ports */ 495163953Srrs struct sctp_inpcb *inp = NULL; 496163953Srrs struct sctp_tcb *stcb = NULL; 497163953Srrs struct sctp_nets *net = NULL; 498163953Srrs struct sockaddr_in6 final; 499163953Srrs 500165647Srrs if (ip6cp->ip6c_m == NULL) 501163953Srrs return; 502163953Srrs 503163953Srrs bzero(&sh, sizeof(sh)); 504163953Srrs bzero(&final, sizeof(final)); 505163953Srrs inp = NULL; 506163953Srrs net = NULL; 507163953Srrs m_copydata(ip6cp->ip6c_m, ip6cp->ip6c_off, sizeof(sh), 508163953Srrs (caddr_t)&sh); 509163953Srrs ip6cp->ip6c_src->sin6_port = sh.src_port; 510163953Srrs final.sin6_len = sizeof(final); 511163953Srrs final.sin6_family = AF_INET6; 512163953Srrs final.sin6_addr = ((struct sockaddr_in6 *)pktdst)->sin6_addr; 513163953Srrs final.sin6_port = sh.dest_port; 514163953Srrs stcb = sctp_findassociation_addr_sa((struct sockaddr *)ip6cp->ip6c_src, 515163953Srrs (struct sockaddr *)&final, 516167598Srrs &inp, &net, 1, vrf_id); 517163953Srrs /* inp's ref-count increased && stcb locked */ 518163953Srrs if (stcb != NULL && inp && (inp->sctp_socket != NULL)) { 519163953Srrs if (cmd == PRC_MSGSIZE) { 520163953Srrs sctp6_notify_mbuf(inp, 521163953Srrs ip6cp->ip6c_icmp6, 522163953Srrs &sh, 523163953Srrs stcb, 524163953Srrs net); 525163953Srrs /* inp's ref-count reduced && stcb unlocked */ 526163953Srrs } else { 527172091Srrs sctp6_notify(inp, ip6cp->ip6c_icmp6, &sh, 528163953Srrs (struct sockaddr *)&final, 529163953Srrs stcb, net); 530163953Srrs /* inp's ref-count reduced && stcb unlocked */ 531163953Srrs } 532163953Srrs } else { 533163953Srrs if (PRC_IS_REDIRECT(cmd) && inp) { 534163953Srrs in6_rtchange((struct in6pcb *)inp, 535163953Srrs inet6ctlerrmap[cmd]); 536163953Srrs } 537163953Srrs if (inp) { 538163953Srrs /* reduce inp's ref-count */ 539163953Srrs SCTP_INP_WLOCK(inp); 540163953Srrs SCTP_INP_DECR_REF(inp); 541163953Srrs SCTP_INP_WUNLOCK(inp); 542163953Srrs } 543163953Srrs if (stcb) 544163953Srrs SCTP_TCB_UNLOCK(stcb); 545163953Srrs } 546163953Srrs } 547163953Srrs} 548163953Srrs 549163953Srrs/* 550163953Srrs * this routine can probably be collasped into the one in sctp_userreq.c 551163953Srrs * since they do the same thing and now we lookup with a sockaddr 552163953Srrs */ 553163953Srrsstatic int 554163953Srrssctp6_getcred(SYSCTL_HANDLER_ARGS) 555163953Srrs{ 556164085Srrs struct xucred xuc; 557163953Srrs struct sockaddr_in6 addrs[2]; 558163953Srrs struct sctp_inpcb *inp; 559163953Srrs struct sctp_nets *net; 560163953Srrs struct sctp_tcb *stcb; 561164085Srrs int error; 562167598Srrs uint32_t vrf_id; 563163953Srrs 564167598Srrs vrf_id = SCTP_DEFAULT_VRFID; 565167598Srrs 566170587Srwatson error = priv_check(req->td, PRIV_NETINET_GETCRED); 567163953Srrs if (error) 568163953Srrs return (error); 569163953Srrs 570171943Srrs if (req->newlen != sizeof(addrs)) { 571171943Srrs SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 572163953Srrs return (EINVAL); 573171943Srrs } 574171943Srrs if (req->oldlen != sizeof(struct ucred)) { 575171943Srrs SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 576163953Srrs return (EINVAL); 577171943Srrs } 578163953Srrs error = SYSCTL_IN(req, addrs, sizeof(addrs)); 579163953Srrs if (error) 580163953Srrs return (error); 581163953Srrs 582163953Srrs stcb = sctp_findassociation_addr_sa(sin6tosa(&addrs[0]), 583163953Srrs sin6tosa(&addrs[1]), 584167598Srrs &inp, &net, 1, vrf_id); 585163953Srrs if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) { 586164085Srrs if ((inp != NULL) && (stcb == NULL)) { 587164085Srrs /* reduce ref-count */ 588163953Srrs SCTP_INP_WLOCK(inp); 589163953Srrs SCTP_INP_DECR_REF(inp); 590164085Srrs goto cred_can_cont; 591163953Srrs } 592171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ENOENT); 593164085Srrs error = ENOENT; 594163953Srrs goto out; 595163953Srrs } 596163953Srrs SCTP_TCB_UNLOCK(stcb); 597164085Srrs /* 598164085Srrs * We use the write lock here, only since in the error leg we need 599164085Srrs * it. If we used RLOCK, then we would have to 600164085Srrs * wlock/decr/unlock/rlock. Which in theory could create a hole. 601164085Srrs * Better to use higher wlock. 602164085Srrs */ 603164085Srrs SCTP_INP_WLOCK(inp); 604164085Srrscred_can_cont: 605164085Srrs error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket); 606164085Srrs if (error) { 607164085Srrs SCTP_INP_WUNLOCK(inp); 608164085Srrs goto out; 609164085Srrs } 610164085Srrs cru2x(inp->sctp_socket->so_cred, &xuc); 611164085Srrs SCTP_INP_WUNLOCK(inp); 612164085Srrs error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred)); 613163953Srrsout: 614163953Srrs return (error); 615163953Srrs} 616163953Srrs 617163953SrrsSYSCTL_PROC(_net_inet6_sctp6, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW, 618163953Srrs 0, 0, 619163953Srrs sctp6_getcred, "S,ucred", "Get the ucred of a SCTP6 connection"); 620163953Srrs 621163953Srrs 622163953Srrs/* This is the same as the sctp_abort() could be made common */ 623163953Srrsstatic void 624163953Srrssctp6_abort(struct socket *so) 625163953Srrs{ 626163953Srrs struct sctp_inpcb *inp; 627163953Srrs uint32_t flags; 628163953Srrs 629163953Srrs inp = (struct sctp_inpcb *)so->so_pcb; 630172091Srrs if (inp == 0) { 631172091Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 632163953Srrs return; 633172091Srrs } 634163953Srrssctp_must_try_again: 635163953Srrs flags = inp->sctp_flags; 636163953Srrs#ifdef SCTP_LOG_CLOSING 637163953Srrs sctp_log_closing(inp, NULL, 17); 638163953Srrs#endif 639163953Srrs if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 640163953Srrs (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 641163953Srrs#ifdef SCTP_LOG_CLOSING 642163953Srrs sctp_log_closing(inp, NULL, 16); 643163953Srrs#endif 644169380Srrs sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 645169380Srrs SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 646163953Srrs SOCK_LOCK(so); 647167695Srrs SCTP_SB_CLEAR(so->so_snd); 648163953Srrs /* 649163953Srrs * same for the rcv ones, they are only here for the 650163953Srrs * accounting/select. 651163953Srrs */ 652167695Srrs SCTP_SB_CLEAR(so->so_rcv); 653167695Srrs /* Now null out the reference, we are completely detached. */ 654163953Srrs so->so_pcb = NULL; 655163953Srrs SOCK_UNLOCK(so); 656163953Srrs } else { 657163953Srrs flags = inp->sctp_flags; 658163953Srrs if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 659163953Srrs goto sctp_must_try_again; 660163953Srrs } 661163953Srrs } 662163953Srrs return; 663163953Srrs} 664163953Srrs 665163953Srrsstatic int 666228653Stuexensctp6_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED) 667163953Srrs{ 668163953Srrs struct in6pcb *inp6; 669166086Srrs int error; 670163953Srrs struct sctp_inpcb *inp; 671170205Srrs uint32_t vrf_id = SCTP_DEFAULT_VRFID; 672163953Srrs 673163953Srrs inp = (struct sctp_inpcb *)so->so_pcb; 674171943Srrs if (inp != NULL) { 675171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 676228907Stuexen return (EINVAL); 677171943Srrs } 678163953Srrs if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { 679179783Srrs error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace)); 680163953Srrs if (error) 681228907Stuexen return (error); 682163953Srrs } 683170205Srrs error = sctp_inpcb_alloc(so, vrf_id); 684163953Srrs if (error) 685228907Stuexen return (error); 686163953Srrs inp = (struct sctp_inpcb *)so->so_pcb; 687170205Srrs SCTP_INP_WLOCK(inp); 688163953Srrs inp->sctp_flags |= SCTP_PCB_FLAGS_BOUND_V6; /* I'm v6! */ 689163953Srrs inp6 = (struct in6pcb *)inp; 690163953Srrs 691163953Srrs inp6->inp_vflag |= INP_IPV6; 692163953Srrs inp6->in6p_hops = -1; /* use kernel default */ 693163953Srrs inp6->in6p_cksum = -1; /* just to be sure */ 694163953Srrs#ifdef INET 695163953Srrs /* 696163953Srrs * XXX: ugly!! IPv4 TTL initialization is necessary for an IPv6 697163953Srrs * socket as well, because the socket may be bound to an IPv6 698163953Srrs * wildcard address, which may match an IPv4-mapped IPv6 address. 699163953Srrs */ 700197288Srrs inp6->inp_ip_ttl = MODULE_GLOBAL(ip_defttl); 701163953Srrs#endif 702163953Srrs /* 703163953Srrs * Hmm what about the IPSEC stuff that is missing here but in 704163953Srrs * sctp_attach()? 705163953Srrs */ 706170205Srrs SCTP_INP_WUNLOCK(inp); 707228907Stuexen return (0); 708163953Srrs} 709163953Srrs 710163953Srrsstatic int 711163953Srrssctp6_bind(struct socket *so, struct sockaddr *addr, struct thread *p) 712163953Srrs{ 713163953Srrs struct sctp_inpcb *inp; 714163953Srrs struct in6pcb *inp6; 715166086Srrs int error; 716163953Srrs 717163953Srrs inp = (struct sctp_inpcb *)so->so_pcb; 718171943Srrs if (inp == 0) { 719171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 720228907Stuexen return (EINVAL); 721171943Srrs } 722170056Srrs if (addr) { 723221249Stuexen switch (addr->sa_family) { 724221249Stuexen#ifdef INET 725221249Stuexen case AF_INET: 726221249Stuexen if (addr->sa_len != sizeof(struct sockaddr_in)) { 727221249Stuexen SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 728228907Stuexen return (EINVAL); 729221249Stuexen } 730221249Stuexen break; 731221249Stuexen#endif 732221249Stuexen#ifdef INET6 733221249Stuexen case AF_INET6: 734221249Stuexen if (addr->sa_len != sizeof(struct sockaddr_in6)) { 735221249Stuexen SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 736228907Stuexen return (EINVAL); 737221249Stuexen } 738221249Stuexen break; 739221249Stuexen#endif 740221249Stuexen default: 741171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 742228907Stuexen return (EINVAL); 743170056Srrs } 744170056Srrs } 745163953Srrs inp6 = (struct in6pcb *)inp; 746163953Srrs inp6->inp_vflag &= ~INP_IPV4; 747163953Srrs inp6->inp_vflag |= INP_IPV6; 748166023Srrs if ((addr != NULL) && (SCTP_IPV6_V6ONLY(inp6) == 0)) { 749221249Stuexen switch (addr->sa_family) { 750221249Stuexen#ifdef INET 751221249Stuexen case AF_INET: 752163953Srrs /* binding v4 addr to v6 socket, so reset flags */ 753163953Srrs inp6->inp_vflag |= INP_IPV4; 754163953Srrs inp6->inp_vflag &= ~INP_IPV6; 755221249Stuexen break; 756221249Stuexen#endif 757221249Stuexen#ifdef INET6 758221249Stuexen case AF_INET6: 759221249Stuexen { 760221249Stuexen struct sockaddr_in6 *sin6_p; 761163953Srrs 762221249Stuexen sin6_p = (struct sockaddr_in6 *)addr; 763163953Srrs 764221249Stuexen if (IN6_IS_ADDR_UNSPECIFIED(&sin6_p->sin6_addr)) { 765221249Stuexen inp6->inp_vflag |= INP_IPV4; 766221249Stuexen } 767221249Stuexen#ifdef INET 768221249Stuexen if (IN6_IS_ADDR_V4MAPPED(&sin6_p->sin6_addr)) { 769221249Stuexen struct sockaddr_in sin; 770163953Srrs 771221249Stuexen in6_sin6_2_sin(&sin, sin6_p); 772221249Stuexen inp6->inp_vflag |= INP_IPV4; 773221249Stuexen inp6->inp_vflag &= ~INP_IPV6; 774221249Stuexen error = sctp_inpcb_bind(so, (struct sockaddr *)&sin, NULL, p); 775228907Stuexen return (error); 776221249Stuexen } 777221249Stuexen#endif 778221249Stuexen break; 779163953Srrs } 780221249Stuexen#endif 781221249Stuexen default: 782221249Stuexen break; 783163953Srrs } 784163953Srrs } else if (addr != NULL) { 785221249Stuexen struct sockaddr_in6 *sin6_p; 786221249Stuexen 787163953Srrs /* IPV6_V6ONLY socket */ 788221249Stuexen#ifdef INET 789163953Srrs if (addr->sa_family == AF_INET) { 790163953Srrs /* can't bind v4 addr to v6 only socket! */ 791171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 792228907Stuexen return (EINVAL); 793221249Stuexen } 794221249Stuexen#endif 795221249Stuexen sin6_p = (struct sockaddr_in6 *)addr; 796163953Srrs 797221249Stuexen if (IN6_IS_ADDR_V4MAPPED(&sin6_p->sin6_addr)) { 798221249Stuexen /* can't bind v4-mapped addrs either! */ 799221249Stuexen /* NOTE: we don't support SIIT */ 800221249Stuexen SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 801228907Stuexen return (EINVAL); 802163953Srrs } 803163953Srrs } 804171572Srrs error = sctp_inpcb_bind(so, addr, NULL, p); 805228907Stuexen return (error); 806163953Srrs} 807163953Srrs 808163953Srrs 809163953Srrsstatic void 810163953Srrssctp6_close(struct socket *so) 811163953Srrs{ 812171990Srrs sctp_close(so); 813163953Srrs} 814163953Srrs 815167598Srrs/* This could be made common with sctp_detach() since they are identical */ 816163953Srrs 817168709Srrsstatic 818168709Srrsint 819163953Srrssctp6_disconnect(struct socket *so) 820163953Srrs{ 821171990Srrs return (sctp_disconnect(so)); 822163953Srrs} 823163953Srrs 824168709Srrs 825163953Srrsint 826163953Srrssctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 827163953Srrs struct mbuf *control, struct thread *p); 828163953Srrs 829163953Srrs 830163953Srrsstatic int 831163953Srrssctp6_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 832163953Srrs struct mbuf *control, struct thread *p) 833163953Srrs{ 834163953Srrs struct sctp_inpcb *inp; 835163953Srrs struct in6pcb *inp6; 836163953Srrs 837163953Srrs#ifdef INET 838163953Srrs struct sockaddr_in6 *sin6; 839163953Srrs 840163953Srrs#endif /* INET */ 841163953Srrs /* No SPL needed since sctp_output does this */ 842163953Srrs 843163953Srrs inp = (struct sctp_inpcb *)so->so_pcb; 844163953Srrs if (inp == NULL) { 845163953Srrs if (control) { 846169352Srrs SCTP_RELEASE_PKT(control); 847163953Srrs control = NULL; 848163953Srrs } 849169352Srrs SCTP_RELEASE_PKT(m); 850171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 851228907Stuexen return (EINVAL); 852163953Srrs } 853163953Srrs inp6 = (struct in6pcb *)inp; 854163953Srrs /* 855163953Srrs * For the TCP model we may get a NULL addr, if we are a connected 856163953Srrs * socket thats ok. 857163953Srrs */ 858163953Srrs if ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) && 859163953Srrs (addr == NULL)) { 860163953Srrs goto connected_type; 861163953Srrs } 862163953Srrs if (addr == NULL) { 863169352Srrs SCTP_RELEASE_PKT(m); 864163953Srrs if (control) { 865169352Srrs SCTP_RELEASE_PKT(control); 866163953Srrs control = NULL; 867163953Srrs } 868171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EDESTADDRREQ); 869163953Srrs return (EDESTADDRREQ); 870163953Srrs } 871163953Srrs#ifdef INET 872163953Srrs sin6 = (struct sockaddr_in6 *)addr; 873166023Srrs if (SCTP_IPV6_V6ONLY(inp6)) { 874163953Srrs /* 875163953Srrs * if IPV6_V6ONLY flag, we discard datagrams destined to a 876163953Srrs * v4 addr or v4-mapped addr 877163953Srrs */ 878163953Srrs if (addr->sa_family == AF_INET) { 879171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 880228907Stuexen return (EINVAL); 881163953Srrs } 882163953Srrs if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { 883171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 884228907Stuexen return (EINVAL); 885163953Srrs } 886163953Srrs } 887163953Srrs if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { 888197288Srrs if (!MODULE_GLOBAL(ip6_v6only)) { 889163953Srrs struct sockaddr_in sin; 890163953Srrs 891163953Srrs /* convert v4-mapped into v4 addr and send */ 892163953Srrs in6_sin6_2_sin(&sin, sin6); 893228907Stuexen return (sctp_sendm(so, flags, m, (struct sockaddr *)&sin, 894228907Stuexen control, p)); 895163953Srrs } else { 896163953Srrs /* mapped addresses aren't enabled */ 897171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 898228907Stuexen return (EINVAL); 899163953Srrs } 900163953Srrs } 901163953Srrs#endif /* INET */ 902163953Srrsconnected_type: 903163953Srrs /* now what about control */ 904163953Srrs if (control) { 905163953Srrs if (inp->control) { 906169420Srrs SCTP_PRINTF("huh? control set?\n"); 907169352Srrs SCTP_RELEASE_PKT(inp->control); 908163953Srrs inp->control = NULL; 909163953Srrs } 910163953Srrs inp->control = control; 911163953Srrs } 912163953Srrs /* Place the data */ 913163953Srrs if (inp->pkt) { 914165647Srrs SCTP_BUF_NEXT(inp->pkt_last) = m; 915163953Srrs inp->pkt_last = m; 916163953Srrs } else { 917163953Srrs inp->pkt_last = inp->pkt = m; 918163953Srrs } 919163953Srrs if ( 920163953Srrs /* FreeBSD and MacOSX uses a flag passed */ 921163953Srrs ((flags & PRUS_MORETOCOME) == 0) 922163953Srrs ) { 923163953Srrs /* 924163953Srrs * note with the current version this code will only be used 925163953Srrs * by OpenBSD, NetBSD and FreeBSD have methods for 926163953Srrs * re-defining sosend() to use sctp_sosend(). One can 927163953Srrs * optionaly switch back to this code (by changing back the 928163953Srrs * defininitions but this is not advisable. 929163953Srrs */ 930163953Srrs int ret; 931163953Srrs 932163953Srrs ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags); 933163953Srrs inp->pkt = NULL; 934163953Srrs inp->control = NULL; 935163953Srrs return (ret); 936163953Srrs } else { 937163953Srrs return (0); 938163953Srrs } 939163953Srrs} 940163953Srrs 941163953Srrsstatic int 942163953Srrssctp6_connect(struct socket *so, struct sockaddr *addr, struct thread *p) 943163953Srrs{ 944167598Srrs uint32_t vrf_id; 945163953Srrs int error = 0; 946163953Srrs struct sctp_inpcb *inp; 947163953Srrs struct in6pcb *inp6; 948163953Srrs struct sctp_tcb *stcb; 949163953Srrs 950163953Srrs#ifdef INET 951163953Srrs struct sockaddr_in6 *sin6; 952163953Srrs struct sockaddr_storage ss; 953163953Srrs 954221249Stuexen#endif 955163953Srrs 956163953Srrs inp6 = (struct in6pcb *)so->so_pcb; 957163953Srrs inp = (struct sctp_inpcb *)so->so_pcb; 958163953Srrs if (inp == 0) { 959171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ECONNRESET); 960163953Srrs return (ECONNRESET); /* I made the same as TCP since we are 961163953Srrs * not setup? */ 962163953Srrs } 963170056Srrs if (addr == NULL) { 964171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 965170056Srrs return (EINVAL); 966170056Srrs } 967221249Stuexen switch (addr->sa_family) { 968221249Stuexen#ifdef INET 969221249Stuexen case AF_INET: 970221249Stuexen if (addr->sa_len != sizeof(struct sockaddr_in)) { 971221249Stuexen SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 972221249Stuexen return (EINVAL); 973221249Stuexen } 974221249Stuexen break; 975221249Stuexen#endif 976221249Stuexen#ifdef INET6 977221249Stuexen case AF_INET6: 978221249Stuexen if (addr->sa_len != sizeof(struct sockaddr_in6)) { 979221249Stuexen SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 980221249Stuexen return (EINVAL); 981221249Stuexen } 982221249Stuexen break; 983221249Stuexen#endif 984221249Stuexen default: 985171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 986170056Srrs return (EINVAL); 987170056Srrs } 988221249Stuexen 989168299Srrs vrf_id = inp->def_vrf_id; 990163953Srrs SCTP_ASOC_CREATE_LOCK(inp); 991163953Srrs SCTP_INP_RLOCK(inp); 992163953Srrs if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 993163953Srrs SCTP_PCB_FLAGS_UNBOUND) { 994163953Srrs /* Bind a ephemeral port */ 995163953Srrs SCTP_INP_RUNLOCK(inp); 996163953Srrs error = sctp6_bind(so, NULL, p); 997163953Srrs if (error) { 998163953Srrs SCTP_ASOC_CREATE_UNLOCK(inp); 999163953Srrs 1000163953Srrs return (error); 1001163953Srrs } 1002163953Srrs SCTP_INP_RLOCK(inp); 1003163953Srrs } 1004163953Srrs if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 1005163953Srrs (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 1006163953Srrs /* We are already connected AND the TCP model */ 1007163953Srrs SCTP_INP_RUNLOCK(inp); 1008163953Srrs SCTP_ASOC_CREATE_UNLOCK(inp); 1009171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EADDRINUSE); 1010163953Srrs return (EADDRINUSE); 1011163953Srrs } 1012163953Srrs#ifdef INET 1013163953Srrs sin6 = (struct sockaddr_in6 *)addr; 1014166023Srrs if (SCTP_IPV6_V6ONLY(inp6)) { 1015163953Srrs /* 1016163953Srrs * if IPV6_V6ONLY flag, ignore connections destined to a v4 1017163953Srrs * addr or v4-mapped addr 1018163953Srrs */ 1019163953Srrs if (addr->sa_family == AF_INET) { 1020163953Srrs SCTP_INP_RUNLOCK(inp); 1021163953Srrs SCTP_ASOC_CREATE_UNLOCK(inp); 1022171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 1023228907Stuexen return (EINVAL); 1024163953Srrs } 1025163953Srrs if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { 1026163953Srrs SCTP_INP_RUNLOCK(inp); 1027163953Srrs SCTP_ASOC_CREATE_UNLOCK(inp); 1028171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 1029228907Stuexen return (EINVAL); 1030163953Srrs } 1031163953Srrs } 1032163953Srrs if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { 1033197288Srrs if (!MODULE_GLOBAL(ip6_v6only)) { 1034163953Srrs /* convert v4-mapped into v4 addr */ 1035163953Srrs in6_sin6_2_sin((struct sockaddr_in *)&ss, sin6); 1036163953Srrs addr = (struct sockaddr *)&ss; 1037163953Srrs } else { 1038163953Srrs /* mapped addresses aren't enabled */ 1039163953Srrs SCTP_INP_RUNLOCK(inp); 1040163953Srrs SCTP_ASOC_CREATE_UNLOCK(inp); 1041171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 1042228907Stuexen return (EINVAL); 1043163953Srrs } 1044221411Stuexen } 1045163953Srrs#endif /* INET */ 1046163953Srrs /* Now do we connect? */ 1047163953Srrs if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 1048163953Srrs stcb = LIST_FIRST(&inp->sctp_asoc_list); 1049169420Srrs if (stcb) { 1050163953Srrs SCTP_TCB_UNLOCK(stcb); 1051169420Srrs } 1052163953Srrs SCTP_INP_RUNLOCK(inp); 1053163953Srrs } else { 1054163953Srrs SCTP_INP_RUNLOCK(inp); 1055163953Srrs SCTP_INP_WLOCK(inp); 1056163953Srrs SCTP_INP_INCR_REF(inp); 1057163953Srrs SCTP_INP_WUNLOCK(inp); 1058163953Srrs stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL); 1059163953Srrs if (stcb == NULL) { 1060163953Srrs SCTP_INP_WLOCK(inp); 1061163953Srrs SCTP_INP_DECR_REF(inp); 1062163953Srrs SCTP_INP_WUNLOCK(inp); 1063163953Srrs } 1064163953Srrs } 1065163953Srrs 1066163953Srrs if (stcb != NULL) { 1067163953Srrs /* Already have or am bring up an association */ 1068163953Srrs SCTP_ASOC_CREATE_UNLOCK(inp); 1069163953Srrs SCTP_TCB_UNLOCK(stcb); 1070171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EALREADY); 1071163953Srrs return (EALREADY); 1072163953Srrs } 1073163953Srrs /* We are GOOD to go */ 1074206137Stuexen stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p); 1075163953Srrs SCTP_ASOC_CREATE_UNLOCK(inp); 1076163953Srrs if (stcb == NULL) { 1077163953Srrs /* Gak! no memory */ 1078163953Srrs return (error); 1079163953Srrs } 1080163953Srrs if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 1081163953Srrs stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 1082163953Srrs /* Set the connected flag so we can queue data */ 1083163953Srrs soisconnecting(so); 1084163953Srrs } 1085163953Srrs stcb->asoc.state = SCTP_STATE_COOKIE_WAIT; 1086169420Srrs (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 1087163953Srrs 1088163953Srrs /* initialize authentication parameters for the assoc */ 1089163953Srrs sctp_initialize_auth_params(inp, stcb); 1090163953Srrs 1091172090Srrs sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 1092163953Srrs SCTP_TCB_UNLOCK(stcb); 1093228907Stuexen return (error); 1094163953Srrs} 1095163953Srrs 1096163953Srrsstatic int 1097163953Srrssctp6_getaddr(struct socket *so, struct sockaddr **addr) 1098163953Srrs{ 1099163953Srrs struct sockaddr_in6 *sin6; 1100163953Srrs struct sctp_inpcb *inp; 1101167598Srrs uint32_t vrf_id; 1102167598Srrs struct sctp_ifa *sctp_ifa; 1103163953Srrs 1104163953Srrs int error; 1105163953Srrs 1106163953Srrs /* 1107163953Srrs * Do the malloc first in case it blocks. 1108163953Srrs */ 1109221249Stuexen SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof(*sin6)); 1110211944Stuexen if (sin6 == NULL) 1111228907Stuexen return (ENOMEM); 1112163953Srrs sin6->sin6_family = AF_INET6; 1113163953Srrs sin6->sin6_len = sizeof(*sin6); 1114163953Srrs 1115163953Srrs inp = (struct sctp_inpcb *)so->so_pcb; 1116163953Srrs if (inp == NULL) { 1117163953Srrs SCTP_FREE_SONAME(sin6); 1118171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ECONNRESET); 1119228907Stuexen return (ECONNRESET); 1120163953Srrs } 1121163953Srrs SCTP_INP_RLOCK(inp); 1122163953Srrs sin6->sin6_port = inp->sctp_lport; 1123163953Srrs if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1124163953Srrs /* For the bound all case you get back 0 */ 1125163953Srrs if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 1126163953Srrs struct sctp_tcb *stcb; 1127163953Srrs struct sockaddr_in6 *sin_a6; 1128163953Srrs struct sctp_nets *net; 1129163953Srrs int fnd; 1130163953Srrs 1131163953Srrs stcb = LIST_FIRST(&inp->sctp_asoc_list); 1132163953Srrs if (stcb == NULL) { 1133163953Srrs goto notConn6; 1134163953Srrs } 1135163953Srrs fnd = 0; 1136163953Srrs sin_a6 = NULL; 1137163953Srrs TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 1138163953Srrs sin_a6 = (struct sockaddr_in6 *)&net->ro._l_addr; 1139164085Srrs if (sin_a6 == NULL) 1140164085Srrs /* this will make coverity happy */ 1141164085Srrs continue; 1142164085Srrs 1143163953Srrs if (sin_a6->sin6_family == AF_INET6) { 1144163953Srrs fnd = 1; 1145163953Srrs break; 1146163953Srrs } 1147163953Srrs } 1148163953Srrs if ((!fnd) || (sin_a6 == NULL)) { 1149163953Srrs /* punt */ 1150163953Srrs goto notConn6; 1151163953Srrs } 1152168299Srrs vrf_id = inp->def_vrf_id; 1153168299Srrs sctp_ifa = sctp_source_address_selection(inp, stcb, (sctp_route_t *) & net->ro, net, 0, vrf_id); 1154167598Srrs if (sctp_ifa) { 1155167598Srrs sin6->sin6_addr = sctp_ifa->address.sin6.sin6_addr; 1156167598Srrs } 1157163953Srrs } else { 1158163953Srrs /* For the bound all case you get back 0 */ 1159163953Srrs notConn6: 1160163953Srrs memset(&sin6->sin6_addr, 0, sizeof(sin6->sin6_addr)); 1161163953Srrs } 1162163953Srrs } else { 1163163953Srrs /* Take the first IPv6 address in the list */ 1164163953Srrs struct sctp_laddr *laddr; 1165163953Srrs int fnd = 0; 1166163953Srrs 1167163953Srrs LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1168167598Srrs if (laddr->ifa->address.sa.sa_family == AF_INET6) { 1169163953Srrs struct sockaddr_in6 *sin_a; 1170163953Srrs 1171167598Srrs sin_a = (struct sockaddr_in6 *)&laddr->ifa->address.sin6; 1172163953Srrs sin6->sin6_addr = sin_a->sin6_addr; 1173163953Srrs fnd = 1; 1174163953Srrs break; 1175163953Srrs } 1176163953Srrs } 1177163953Srrs if (!fnd) { 1178163953Srrs SCTP_FREE_SONAME(sin6); 1179163953Srrs SCTP_INP_RUNLOCK(inp); 1180171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ENOENT); 1181228907Stuexen return (ENOENT); 1182163953Srrs } 1183163953Srrs } 1184163953Srrs SCTP_INP_RUNLOCK(inp); 1185163953Srrs /* Scoping things for v6 */ 1186164085Srrs if ((error = sa6_recoverscope(sin6)) != 0) { 1187164085Srrs SCTP_FREE_SONAME(sin6); 1188163953Srrs return (error); 1189164085Srrs } 1190163953Srrs (*addr) = (struct sockaddr *)sin6; 1191163953Srrs return (0); 1192163953Srrs} 1193163953Srrs 1194163953Srrsstatic int 1195163953Srrssctp6_peeraddr(struct socket *so, struct sockaddr **addr) 1196163953Srrs{ 1197163953Srrs struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)*addr; 1198163953Srrs int fnd; 1199163953Srrs struct sockaddr_in6 *sin_a6; 1200163953Srrs struct sctp_inpcb *inp; 1201163953Srrs struct sctp_tcb *stcb; 1202163953Srrs struct sctp_nets *net; 1203163953Srrs int error; 1204163953Srrs 1205228907Stuexen /* Do the malloc first in case it blocks. */ 1206163953Srrs SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6); 1207211944Stuexen if (sin6 == NULL) 1208211944Stuexen return (ENOMEM); 1209163953Srrs sin6->sin6_family = AF_INET6; 1210163953Srrs sin6->sin6_len = sizeof(*sin6); 1211163953Srrs 1212163953Srrs inp = (struct sctp_inpcb *)so->so_pcb; 1213228907Stuexen if ((inp == NULL) || 1214228907Stuexen ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { 1215228907Stuexen /* UDP type and listeners will drop out here */ 1216163953Srrs SCTP_FREE_SONAME(sin6); 1217228907Stuexen SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ENOTCONN); 1218228907Stuexen return (ENOTCONN); 1219163953Srrs } 1220163953Srrs SCTP_INP_RLOCK(inp); 1221163953Srrs stcb = LIST_FIRST(&inp->sctp_asoc_list); 1222169420Srrs if (stcb) { 1223163953Srrs SCTP_TCB_LOCK(stcb); 1224169420Srrs } 1225163953Srrs SCTP_INP_RUNLOCK(inp); 1226163953Srrs if (stcb == NULL) { 1227163953Srrs SCTP_FREE_SONAME(sin6); 1228171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ECONNRESET); 1229228907Stuexen return (ECONNRESET); 1230163953Srrs } 1231163953Srrs fnd = 0; 1232163953Srrs TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 1233163953Srrs sin_a6 = (struct sockaddr_in6 *)&net->ro._l_addr; 1234163953Srrs if (sin_a6->sin6_family == AF_INET6) { 1235163953Srrs fnd = 1; 1236163953Srrs sin6->sin6_port = stcb->rport; 1237163953Srrs sin6->sin6_addr = sin_a6->sin6_addr; 1238163953Srrs break; 1239163953Srrs } 1240163953Srrs } 1241163953Srrs SCTP_TCB_UNLOCK(stcb); 1242163953Srrs if (!fnd) { 1243163953Srrs /* No IPv4 address */ 1244163953Srrs SCTP_FREE_SONAME(sin6); 1245171943Srrs SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ENOENT); 1246228907Stuexen return (ENOENT); 1247163953Srrs } 1248163953Srrs if ((error = sa6_recoverscope(sin6)) != 0) 1249163953Srrs return (error); 1250163953Srrs *addr = (struct sockaddr *)sin6; 1251163953Srrs return (0); 1252163953Srrs} 1253163953Srrs 1254163953Srrsstatic int 1255163953Srrssctp6_in6getaddr(struct socket *so, struct sockaddr **nam) 1256163953Srrs{ 1257221249Stuexen#ifdef INET 1258163953Srrs struct sockaddr *addr; 1259221249Stuexen 1260221249Stuexen#endif 1261163953Srrs struct in6pcb *inp6 = sotoin6pcb(so); 1262166086Srrs int error; 1263163953Srrs 1264171943Srrs if (inp6 == NULL) { 1265171943Srrs SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 1266228907Stuexen return (EINVAL); 1267171943Srrs } 1268163953Srrs /* allow v6 addresses precedence */ 1269163953Srrs error = sctp6_getaddr(so, nam); 1270221249Stuexen#ifdef INET 1271163953Srrs if (error) { 1272163953Srrs /* try v4 next if v6 failed */ 1273163953Srrs error = sctp_ingetaddr(so, nam); 1274163953Srrs if (error) { 1275163953Srrs return (error); 1276163953Srrs } 1277163953Srrs addr = *nam; 1278163953Srrs /* if I'm V6ONLY, convert it to v4-mapped */ 1279166023Srrs if (SCTP_IPV6_V6ONLY(inp6)) { 1280163953Srrs struct sockaddr_in6 sin6; 1281163953Srrs 1282163953Srrs in6_sin_2_v4mapsin6((struct sockaddr_in *)addr, &sin6); 1283163953Srrs memcpy(addr, &sin6, sizeof(struct sockaddr_in6)); 1284163953Srrs } 1285163953Srrs } 1286221249Stuexen#endif 1287163953Srrs return (error); 1288163953Srrs} 1289163953Srrs 1290163953Srrs 1291163953Srrsstatic int 1292163953Srrssctp6_getpeeraddr(struct socket *so, struct sockaddr **nam) 1293163953Srrs{ 1294221249Stuexen#ifdef INET 1295221249Stuexen struct sockaddr *addr; 1296221249Stuexen 1297221249Stuexen#endif 1298163953Srrs struct in6pcb *inp6 = sotoin6pcb(so); 1299166086Srrs int error; 1300163953Srrs 1301171943Srrs if (inp6 == NULL) { 1302171943Srrs SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL); 1303228907Stuexen return (EINVAL); 1304171943Srrs } 1305163953Srrs /* allow v6 addresses precedence */ 1306163953Srrs error = sctp6_peeraddr(so, nam); 1307221249Stuexen#ifdef INET 1308163953Srrs if (error) { 1309163953Srrs /* try v4 next if v6 failed */ 1310163953Srrs error = sctp_peeraddr(so, nam); 1311163953Srrs if (error) { 1312163953Srrs return (error); 1313163953Srrs } 1314221249Stuexen addr = *nam; 1315163953Srrs /* if I'm V6ONLY, convert it to v4-mapped */ 1316166023Srrs if (SCTP_IPV6_V6ONLY(inp6)) { 1317163953Srrs struct sockaddr_in6 sin6; 1318163953Srrs 1319163953Srrs in6_sin_2_v4mapsin6((struct sockaddr_in *)addr, &sin6); 1320163953Srrs memcpy(addr, &sin6, sizeof(struct sockaddr_in6)); 1321163953Srrs } 1322163953Srrs } 1323221249Stuexen#endif 1324228907Stuexen return (error); 1325163953Srrs} 1326163953Srrs 1327163953Srrsstruct pr_usrreqs sctp6_usrreqs = { 1328163953Srrs .pru_abort = sctp6_abort, 1329163953Srrs .pru_accept = sctp_accept, 1330163953Srrs .pru_attach = sctp6_attach, 1331163953Srrs .pru_bind = sctp6_bind, 1332163953Srrs .pru_connect = sctp6_connect, 1333163953Srrs .pru_control = in6_control, 1334163953Srrs .pru_close = sctp6_close, 1335163953Srrs .pru_detach = sctp6_close, 1336163953Srrs .pru_sopoll = sopoll_generic, 1337178201Srrs .pru_flush = sctp_flush, 1338163953Srrs .pru_disconnect = sctp6_disconnect, 1339163953Srrs .pru_listen = sctp_listen, 1340163953Srrs .pru_peeraddr = sctp6_getpeeraddr, 1341163953Srrs .pru_send = sctp6_send, 1342163953Srrs .pru_shutdown = sctp_shutdown, 1343163953Srrs .pru_sockaddr = sctp6_in6getaddr, 1344163953Srrs .pru_sosend = sctp_sosend, 1345163953Srrs .pru_soreceive = sctp_soreceive 1346163953Srrs}; 1347