sctp_usrreq.c revision 211944
1/*- 2 * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * a) Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * 10 * b) Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the distribution. 13 * 14 * c) Neither the name of Cisco Systems, Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31/* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $ */ 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD: head/sys/netinet/sctp_usrreq.c 211944 2010-08-28 17:59:51Z tuexen $"); 35#include <netinet/sctp_os.h> 36#include <sys/proc.h> 37#include <netinet/sctp_pcb.h> 38#include <netinet/sctp_header.h> 39#include <netinet/sctp_var.h> 40#if defined(INET6) 41#endif 42#include <netinet/sctp_sysctl.h> 43#include <netinet/sctp_output.h> 44#include <netinet/sctp_uio.h> 45#include <netinet/sctp_asconf.h> 46#include <netinet/sctputil.h> 47#include <netinet/sctp_indata.h> 48#include <netinet/sctp_timer.h> 49#include <netinet/sctp_auth.h> 50#include <netinet/sctp_bsd_addr.h> 51#include <netinet/sctp_cc_functions.h> 52#include <netinet/udp.h> 53 54 55 56 57void 58sctp_init(void) 59{ 60 u_long sb_max_adj; 61 62 bzero(&SCTP_BASE_STATS, sizeof(struct sctpstat)); 63 64 /* Initialize and modify the sysctled variables */ 65 sctp_init_sysctls(); 66 if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE) 67 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8); 68 /* 69 * Allow a user to take no more than 1/2 the number of clusters or 70 * the SB_MAX whichever is smaller for the send window. 71 */ 72 sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES)); 73 SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj, 74 (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT)); 75 /* 76 * Now for the recv window, should we take the same amount? or 77 * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For 78 * now I will just copy. 79 */ 80 SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace); 81 82 SCTP_BASE_VAR(first_time) = 0; 83 SCTP_BASE_VAR(sctp_pcb_initialized) = 0; 84 sctp_pcb_init(); 85#if defined(SCTP_PACKET_LOGGING) 86 SCTP_BASE_VAR(packet_log_writers) = 0; 87 SCTP_BASE_VAR(packet_log_end) = 0; 88 bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE); 89#endif 90 91 92} 93 94void 95sctp_finish(void) 96{ 97 sctp_pcb_finish(); 98} 99 100 101 102void 103sctp_pathmtu_adjustment(struct sctp_inpcb *inp, 104 struct sctp_tcb *stcb, 105 struct sctp_nets *net, 106 uint16_t nxtsz) 107{ 108 struct sctp_tmit_chunk *chk; 109 uint16_t overhead; 110 111 /* Adjust that too */ 112 stcb->asoc.smallest_mtu = nxtsz; 113 /* now off to subtract IP_DF flag if needed */ 114#ifdef SCTP_PRINT_FOR_B_AND_M 115 SCTP_PRINTF("sctp_pathmtu_adjust called inp:%p stcb:%p net:%p nxtsz:%d\n", 116 inp, stcb, net, nxtsz); 117#endif 118 overhead = IP_HDR_SIZE; 119 if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) { 120 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id); 121 } 122 TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) { 123 if ((chk->send_size + overhead) > nxtsz) { 124 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 125 } 126 } 127 TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { 128 if ((chk->send_size + overhead) > nxtsz) { 129 /* 130 * For this guy we also mark for immediate resend 131 * since we sent to big of chunk 132 */ 133 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 134 if (chk->sent < SCTP_DATAGRAM_RESEND) { 135 sctp_flight_size_decrease(chk); 136 sctp_total_flight_decrease(stcb, chk); 137 } 138 if (chk->sent != SCTP_DATAGRAM_RESEND) { 139 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt); 140 } 141 chk->sent = SCTP_DATAGRAM_RESEND; 142 chk->rec.data.doing_fast_retransmit = 0; 143 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) { 144 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU, 145 chk->whoTo->flight_size, 146 chk->book_size, 147 (uintptr_t) chk->whoTo, 148 chk->rec.data.TSN_seq); 149 } 150 /* Clear any time so NO RTT is being done */ 151 chk->do_rtt = 0; 152 } 153 } 154} 155 156static void 157sctp_notify_mbuf(struct sctp_inpcb *inp, 158 struct sctp_tcb *stcb, 159 struct sctp_nets *net, 160 struct ip *ip, 161 struct sctphdr *sh) 162{ 163 struct icmp *icmph; 164 int totsz, tmr_stopped = 0; 165 uint16_t nxtsz; 166 167 /* protection */ 168 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 169 (ip == NULL) || (sh == NULL)) { 170 if (stcb != NULL) { 171 SCTP_TCB_UNLOCK(stcb); 172 } 173 return; 174 } 175 /* First job is to verify the vtag matches what I would send */ 176 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 177 SCTP_TCB_UNLOCK(stcb); 178 return; 179 } 180 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 181 sizeof(struct ip))); 182 if (icmph->icmp_type != ICMP_UNREACH) { 183 /* We only care about unreachable */ 184 SCTP_TCB_UNLOCK(stcb); 185 return; 186 } 187 if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) { 188 /* not a unreachable message due to frag. */ 189 SCTP_TCB_UNLOCK(stcb); 190 return; 191 } 192 totsz = ip->ip_len; 193 194 nxtsz = ntohs(icmph->icmp_nextmtu); 195 if (nxtsz == 0) { 196 /* 197 * old type router that does not tell us what the next size 198 * mtu is. Rats we will have to guess (in a educated fashion 199 * of course) 200 */ 201 nxtsz = find_next_best_mtu(totsz); 202 } 203 /* Stop any PMTU timer */ 204 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 205 tmr_stopped = 1; 206 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 207 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1); 208 } 209 /* Adjust destination size limit */ 210 if (net->mtu > nxtsz) { 211 net->mtu = nxtsz; 212 if (net->port) { 213 net->mtu -= sizeof(struct udphdr); 214 } 215 } 216 /* now what about the ep? */ 217 if (stcb->asoc.smallest_mtu > nxtsz) { 218#ifdef SCTP_PRINT_FOR_B_AND_M 219 SCTP_PRINTF("notify_mbuf (ICMP) calls sctp_pathmtu_adjust mtu:%d\n", 220 nxtsz); 221#endif 222 sctp_pathmtu_adjustment(inp, stcb, net, nxtsz); 223 } 224 if (tmr_stopped) 225 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 226 227 SCTP_TCB_UNLOCK(stcb); 228} 229 230 231void 232sctp_notify(struct sctp_inpcb *inp, 233 struct ip *ip, 234 struct sctphdr *sh, 235 struct sockaddr *to, 236 struct sctp_tcb *stcb, 237 struct sctp_nets *net) 238{ 239#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 240 struct socket *so; 241 242#endif 243 /* protection */ 244 int reason; 245 struct icmp *icmph; 246 247 248 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 249 (sh == NULL) || (to == NULL)) { 250 if (stcb) 251 SCTP_TCB_UNLOCK(stcb); 252 return; 253 } 254 /* First job is to verify the vtag matches what I would send */ 255 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 256 SCTP_TCB_UNLOCK(stcb); 257 return; 258 } 259 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 260 sizeof(struct ip))); 261 if (icmph->icmp_type != ICMP_UNREACH) { 262 /* We only care about unreachable */ 263 SCTP_TCB_UNLOCK(stcb); 264 return; 265 } 266 if ((icmph->icmp_code == ICMP_UNREACH_NET) || 267 (icmph->icmp_code == ICMP_UNREACH_HOST) || 268 (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) || 269 (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) || 270 (icmph->icmp_code == ICMP_UNREACH_ISOLATED) || 271 (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) || 272 (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) || 273 (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) { 274 275 /* 276 * Hmm reachablity problems we must examine closely. If its 277 * not reachable, we may have lost a network. Or if there is 278 * NO protocol at the other end named SCTP. well we consider 279 * it a OOTB abort. 280 */ 281 if (net->dest_state & SCTP_ADDR_REACHABLE) { 282 /* Ok that destination is NOT reachable */ 283 SCTP_PRINTF("ICMP (thresh %d/%d) takes interface %p down\n", 284 net->error_count, 285 net->failure_threshold, 286 net); 287 288 net->dest_state &= ~SCTP_ADDR_REACHABLE; 289 net->dest_state |= SCTP_ADDR_NOT_REACHABLE; 290 /* 291 * JRS 5/14/07 - If a destination is unreachable, 292 * the PF bit is turned off. This allows an 293 * unambiguous use of the PF bit for destinations 294 * that are reachable but potentially failed. If the 295 * destination is set to the unreachable state, also 296 * set the destination to the PF state. 297 */ 298 /* 299 * Add debug message here if destination is not in 300 * PF state. 301 */ 302 /* Stop any running T3 timers here? */ 303 if ((stcb->asoc.sctp_cmt_on_off == 1) && 304 (stcb->asoc.sctp_cmt_pf > 0)) { 305 net->dest_state &= ~SCTP_ADDR_PF; 306 SCTPDBG(SCTP_DEBUG_TIMER4, "Destination %p moved from PF to unreachable.\n", 307 net); 308 } 309 net->error_count = net->failure_threshold + 1; 310 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, 311 stcb, SCTP_FAILED_THRESHOLD, 312 (void *)net, SCTP_SO_NOT_LOCKED); 313 } 314 SCTP_TCB_UNLOCK(stcb); 315 } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) || 316 (icmph->icmp_code == ICMP_UNREACH_PORT)) { 317 /* 318 * Here the peer is either playing tricks on us, including 319 * an address that belongs to someone who does not support 320 * SCTP OR was a userland implementation that shutdown and 321 * now is dead. In either case treat it like a OOTB abort 322 * with no TCB 323 */ 324 reason = SCTP_PEER_FAULTY; 325 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED); 326#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 327 so = SCTP_INP_SO(inp); 328 atomic_add_int(&stcb->asoc.refcnt, 1); 329 SCTP_TCB_UNLOCK(stcb); 330 SCTP_SOCKET_LOCK(so, 1); 331 SCTP_TCB_LOCK(stcb); 332 atomic_subtract_int(&stcb->asoc.refcnt, 1); 333#endif 334 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2); 335#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 336 SCTP_SOCKET_UNLOCK(so, 1); 337 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */ 338#endif 339 /* no need to unlock here, since the TCB is gone */ 340 } else { 341 SCTP_TCB_UNLOCK(stcb); 342 } 343} 344 345void 346sctp_ctlinput(cmd, sa, vip) 347 int cmd; 348 struct sockaddr *sa; 349 void *vip; 350{ 351 struct ip *ip = vip; 352 struct sctphdr *sh; 353 uint32_t vrf_id; 354 355 /* FIX, for non-bsd is this right? */ 356 vrf_id = SCTP_DEFAULT_VRFID; 357 if (sa->sa_family != AF_INET || 358 ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) { 359 return; 360 } 361 if (PRC_IS_REDIRECT(cmd)) { 362 ip = 0; 363 } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) { 364 return; 365 } 366 if (ip) { 367 struct sctp_inpcb *inp = NULL; 368 struct sctp_tcb *stcb = NULL; 369 struct sctp_nets *net = NULL; 370 struct sockaddr_in to, from; 371 372 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2)); 373 bzero(&to, sizeof(to)); 374 bzero(&from, sizeof(from)); 375 from.sin_family = to.sin_family = AF_INET; 376 from.sin_len = to.sin_len = sizeof(to); 377 from.sin_port = sh->src_port; 378 from.sin_addr = ip->ip_src; 379 to.sin_port = sh->dest_port; 380 to.sin_addr = ip->ip_dst; 381 382 /* 383 * 'to' holds the dest of the packet that failed to be sent. 384 * 'from' holds our local endpoint address. Thus we reverse 385 * the to and the from in the lookup. 386 */ 387 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from, 388 (struct sockaddr *)&to, 389 &inp, &net, 1, vrf_id); 390 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) { 391 if (cmd != PRC_MSGSIZE) { 392 sctp_notify(inp, ip, sh, 393 (struct sockaddr *)&to, stcb, 394 net); 395 } else { 396 /* handle possible ICMP size messages */ 397 sctp_notify_mbuf(inp, stcb, net, ip, sh); 398 } 399 } else { 400 if ((stcb == NULL) && (inp != NULL)) { 401 /* reduce ref-count */ 402 SCTP_INP_WLOCK(inp); 403 SCTP_INP_DECR_REF(inp); 404 SCTP_INP_WUNLOCK(inp); 405 } 406 if (stcb) { 407 SCTP_TCB_UNLOCK(stcb); 408 } 409 } 410 } 411 return; 412} 413 414static int 415sctp_getcred(SYSCTL_HANDLER_ARGS) 416{ 417 struct xucred xuc; 418 struct sockaddr_in addrs[2]; 419 struct sctp_inpcb *inp; 420 struct sctp_nets *net; 421 struct sctp_tcb *stcb; 422 int error; 423 uint32_t vrf_id; 424 425 /* FIX, for non-bsd is this right? */ 426 vrf_id = SCTP_DEFAULT_VRFID; 427 428 error = priv_check(req->td, PRIV_NETINET_GETCRED); 429 430 if (error) 431 return (error); 432 433 error = SYSCTL_IN(req, addrs, sizeof(addrs)); 434 if (error) 435 return (error); 436 437 stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]), 438 sintosa(&addrs[1]), 439 &inp, &net, 1, vrf_id); 440 if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) { 441 if ((inp != NULL) && (stcb == NULL)) { 442 /* reduce ref-count */ 443 SCTP_INP_WLOCK(inp); 444 SCTP_INP_DECR_REF(inp); 445 goto cred_can_cont; 446 } 447 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 448 error = ENOENT; 449 goto out; 450 } 451 SCTP_TCB_UNLOCK(stcb); 452 /* 453 * We use the write lock here, only since in the error leg we need 454 * it. If we used RLOCK, then we would have to 455 * wlock/decr/unlock/rlock. Which in theory could create a hole. 456 * Better to use higher wlock. 457 */ 458 SCTP_INP_WLOCK(inp); 459cred_can_cont: 460 error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket); 461 if (error) { 462 SCTP_INP_WUNLOCK(inp); 463 goto out; 464 } 465 cru2x(inp->sctp_socket->so_cred, &xuc); 466 SCTP_INP_WUNLOCK(inp); 467 error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred)); 468out: 469 return (error); 470} 471 472SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW, 473 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection"); 474 475 476static void 477sctp_abort(struct socket *so) 478{ 479 struct sctp_inpcb *inp; 480 uint32_t flags; 481 482 inp = (struct sctp_inpcb *)so->so_pcb; 483 if (inp == 0) { 484 return; 485 } 486sctp_must_try_again: 487 flags = inp->sctp_flags; 488#ifdef SCTP_LOG_CLOSING 489 sctp_log_closing(inp, NULL, 17); 490#endif 491 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 492 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 493#ifdef SCTP_LOG_CLOSING 494 sctp_log_closing(inp, NULL, 16); 495#endif 496 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 497 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 498 SOCK_LOCK(so); 499 SCTP_SB_CLEAR(so->so_snd); 500 /* 501 * same for the rcv ones, they are only here for the 502 * accounting/select. 503 */ 504 SCTP_SB_CLEAR(so->so_rcv); 505 506 /* Now null out the reference, we are completely detached. */ 507 so->so_pcb = NULL; 508 SOCK_UNLOCK(so); 509 } else { 510 flags = inp->sctp_flags; 511 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 512 goto sctp_must_try_again; 513 } 514 } 515 return; 516} 517 518static int 519sctp_attach(struct socket *so, int proto, struct thread *p) 520{ 521 struct sctp_inpcb *inp; 522 struct inpcb *ip_inp; 523 int error; 524 uint32_t vrf_id = SCTP_DEFAULT_VRFID; 525 526#ifdef IPSEC 527 uint32_t flags; 528 529#endif 530 531 inp = (struct sctp_inpcb *)so->so_pcb; 532 if (inp != 0) { 533 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 534 return EINVAL; 535 } 536 if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { 537 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace)); 538 if (error) { 539 return error; 540 } 541 } 542 error = sctp_inpcb_alloc(so, vrf_id); 543 if (error) { 544 return error; 545 } 546 inp = (struct sctp_inpcb *)so->so_pcb; 547 SCTP_INP_WLOCK(inp); 548 inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */ 549 ip_inp = &inp->ip_inp.inp; 550 ip_inp->inp_vflag |= INP_IPV4; 551 ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl); 552#ifdef IPSEC 553 error = ipsec_init_policy(so, &ip_inp->inp_sp); 554#ifdef SCTP_LOG_CLOSING 555 sctp_log_closing(inp, NULL, 17); 556#endif 557 if (error != 0) { 558try_again: 559 flags = inp->sctp_flags; 560 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 561 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 562#ifdef SCTP_LOG_CLOSING 563 sctp_log_closing(inp, NULL, 15); 564#endif 565 SCTP_INP_WUNLOCK(inp); 566 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 567 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 568 } else { 569 flags = inp->sctp_flags; 570 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 571 goto try_again; 572 } else { 573 SCTP_INP_WUNLOCK(inp); 574 } 575 } 576 return error; 577 } 578#endif /* IPSEC */ 579 SCTP_INP_WUNLOCK(inp); 580 return 0; 581} 582 583static int 584sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p) 585{ 586 struct sctp_inpcb *inp = NULL; 587 int error; 588 589#ifdef INET6 590 if (addr && addr->sa_family != AF_INET) { 591 /* must be a v4 address! */ 592 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 593 return EINVAL; 594 } 595#endif /* INET6 */ 596 if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) { 597 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 598 return EINVAL; 599 } 600 inp = (struct sctp_inpcb *)so->so_pcb; 601 if (inp == 0) { 602 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 603 return EINVAL; 604 } 605 error = sctp_inpcb_bind(so, addr, NULL, p); 606 return error; 607} 608 609void 610sctp_close(struct socket *so) 611{ 612 struct sctp_inpcb *inp; 613 uint32_t flags; 614 615 inp = (struct sctp_inpcb *)so->so_pcb; 616 if (inp == 0) 617 return; 618 619 /* 620 * Inform all the lower layer assoc that we are done. 621 */ 622sctp_must_try_again: 623 flags = inp->sctp_flags; 624#ifdef SCTP_LOG_CLOSING 625 sctp_log_closing(inp, NULL, 17); 626#endif 627 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 628 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 629 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) || 630 (so->so_rcv.sb_cc > 0)) { 631#ifdef SCTP_LOG_CLOSING 632 sctp_log_closing(inp, NULL, 13); 633#endif 634 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 635 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 636 } else { 637#ifdef SCTP_LOG_CLOSING 638 sctp_log_closing(inp, NULL, 14); 639#endif 640 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE, 641 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 642 } 643 /* 644 * The socket is now detached, no matter what the state of 645 * the SCTP association. 646 */ 647 SOCK_LOCK(so); 648 SCTP_SB_CLEAR(so->so_snd); 649 /* 650 * same for the rcv ones, they are only here for the 651 * accounting/select. 652 */ 653 SCTP_SB_CLEAR(so->so_rcv); 654 655 /* Now null out the reference, we are completely detached. */ 656 so->so_pcb = NULL; 657 SOCK_UNLOCK(so); 658 } else { 659 flags = inp->sctp_flags; 660 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 661 goto sctp_must_try_again; 662 } 663 } 664 return; 665} 666 667 668int 669sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 670 struct mbuf *control, struct thread *p); 671 672 673int 674sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 675 struct mbuf *control, struct thread *p) 676{ 677 struct sctp_inpcb *inp; 678 int error; 679 680 inp = (struct sctp_inpcb *)so->so_pcb; 681 if (inp == 0) { 682 if (control) { 683 sctp_m_freem(control); 684 control = NULL; 685 } 686 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 687 sctp_m_freem(m); 688 return EINVAL; 689 } 690 /* Got to have an to address if we are NOT a connected socket */ 691 if ((addr == NULL) && 692 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) || 693 (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE)) 694 ) { 695 goto connected_type; 696 } else if (addr == NULL) { 697 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 698 error = EDESTADDRREQ; 699 sctp_m_freem(m); 700 if (control) { 701 sctp_m_freem(control); 702 control = NULL; 703 } 704 return (error); 705 } 706#ifdef INET6 707 if (addr->sa_family != AF_INET) { 708 /* must be a v4 address! */ 709 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 710 sctp_m_freem(m); 711 if (control) { 712 sctp_m_freem(control); 713 control = NULL; 714 } 715 error = EDESTADDRREQ; 716 return EDESTADDRREQ; 717 } 718#endif /* INET6 */ 719connected_type: 720 /* now what about control */ 721 if (control) { 722 if (inp->control) { 723 SCTP_PRINTF("huh? control set?\n"); 724 sctp_m_freem(inp->control); 725 inp->control = NULL; 726 } 727 inp->control = control; 728 } 729 /* Place the data */ 730 if (inp->pkt) { 731 SCTP_BUF_NEXT(inp->pkt_last) = m; 732 inp->pkt_last = m; 733 } else { 734 inp->pkt_last = inp->pkt = m; 735 } 736 if ( 737 /* FreeBSD uses a flag passed */ 738 ((flags & PRUS_MORETOCOME) == 0) 739 ) { 740 /* 741 * note with the current version this code will only be used 742 * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for 743 * re-defining sosend to use the sctp_sosend. One can 744 * optionally switch back to this code (by changing back the 745 * definitions) but this is not advisable. This code is used 746 * by FreeBSD when sending a file with sendfile() though. 747 */ 748 int ret; 749 750 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags); 751 inp->pkt = NULL; 752 inp->control = NULL; 753 return (ret); 754 } else { 755 return (0); 756 } 757} 758 759int 760sctp_disconnect(struct socket *so) 761{ 762 struct sctp_inpcb *inp; 763 764 inp = (struct sctp_inpcb *)so->so_pcb; 765 if (inp == NULL) { 766 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 767 return (ENOTCONN); 768 } 769 SCTP_INP_RLOCK(inp); 770 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 771 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 772 if (LIST_EMPTY(&inp->sctp_asoc_list)) { 773 /* No connection */ 774 SCTP_INP_RUNLOCK(inp); 775 return (0); 776 } else { 777 struct sctp_association *asoc; 778 struct sctp_tcb *stcb; 779 780 stcb = LIST_FIRST(&inp->sctp_asoc_list); 781 if (stcb == NULL) { 782 SCTP_INP_RUNLOCK(inp); 783 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 784 return (EINVAL); 785 } 786 SCTP_TCB_LOCK(stcb); 787 asoc = &stcb->asoc; 788 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 789 /* We are about to be freed, out of here */ 790 SCTP_TCB_UNLOCK(stcb); 791 SCTP_INP_RUNLOCK(inp); 792 return (0); 793 } 794 if (((so->so_options & SO_LINGER) && 795 (so->so_linger == 0)) || 796 (so->so_rcv.sb_cc > 0)) { 797 if (SCTP_GET_STATE(asoc) != 798 SCTP_STATE_COOKIE_WAIT) { 799 /* Left with Data unread */ 800 struct mbuf *err; 801 802 err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA); 803 if (err) { 804 /* 805 * Fill in the user 806 * initiated abort 807 */ 808 struct sctp_paramhdr *ph; 809 810 ph = mtod(err, struct sctp_paramhdr *); 811 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr); 812 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT); 813 ph->param_length = htons(SCTP_BUF_LEN(err)); 814 } 815#if defined(SCTP_PANIC_ON_ABORT) 816 panic("disconnect does an abort"); 817#endif 818 sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED); 819 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 820 } 821 SCTP_INP_RUNLOCK(inp); 822 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 823 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 824 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 825 } 826 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3); 827 /* No unlock tcb assoc is gone */ 828 return (0); 829 } 830 if (TAILQ_EMPTY(&asoc->send_queue) && 831 TAILQ_EMPTY(&asoc->sent_queue) && 832 (asoc->stream_queue_cnt == 0)) { 833 /* there is nothing queued to send, so done */ 834 if (asoc->locked_on_sending) { 835 goto abort_anyway; 836 } 837 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) && 838 (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) { 839 /* only send SHUTDOWN 1st time thru */ 840 sctp_stop_timers_for_shutdown(stcb); 841 sctp_send_shutdown(stcb, 842 stcb->asoc.primary_destination); 843 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 844 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 845 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 846 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 847 } 848 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 849 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 850 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 851 stcb->sctp_ep, stcb, 852 asoc->primary_destination); 853 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 854 stcb->sctp_ep, stcb, 855 asoc->primary_destination); 856 } 857 } else { 858 /* 859 * we still got (or just got) data to send, 860 * so set SHUTDOWN_PENDING 861 */ 862 /* 863 * XXX sockets draft says that SCTP_EOF 864 * should be sent with no data. currently, 865 * we will allow user data to be sent first 866 * and move to SHUTDOWN-PENDING 867 */ 868 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 869 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 870 asoc->primary_destination); 871 if (asoc->locked_on_sending) { 872 /* Locked to send out the data */ 873 struct sctp_stream_queue_pending *sp; 874 875 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 876 if (sp == NULL) { 877 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 878 asoc->locked_on_sending->stream_no); 879 } else { 880 if ((sp->length == 0) && (sp->msg_is_complete == 0)) 881 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 882 } 883 } 884 if (TAILQ_EMPTY(&asoc->send_queue) && 885 TAILQ_EMPTY(&asoc->sent_queue) && 886 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 887 struct mbuf *op_err; 888 889 abort_anyway: 890 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 891 0, M_DONTWAIT, 1, MT_DATA); 892 if (op_err) { 893 /* 894 * Fill in the user 895 * initiated abort 896 */ 897 struct sctp_paramhdr *ph; 898 uint32_t *ippp; 899 900 SCTP_BUF_LEN(op_err) = 901 (sizeof(struct sctp_paramhdr) + sizeof(uint32_t)); 902 ph = mtod(op_err, 903 struct sctp_paramhdr *); 904 ph->param_type = htons( 905 SCTP_CAUSE_USER_INITIATED_ABT); 906 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 907 ippp = (uint32_t *) (ph + 1); 908 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4); 909 } 910#if defined(SCTP_PANIC_ON_ABORT) 911 panic("disconnect does an abort"); 912#endif 913 914 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4; 915 sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED); 916 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 917 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 918 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 919 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 920 } 921 SCTP_INP_RUNLOCK(inp); 922 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5); 923 return (0); 924 } else { 925 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 926 } 927 } 928 soisdisconnecting(so); 929 SCTP_TCB_UNLOCK(stcb); 930 SCTP_INP_RUNLOCK(inp); 931 return (0); 932 } 933 /* not reached */ 934 } else { 935 /* UDP model does not support this */ 936 SCTP_INP_RUNLOCK(inp); 937 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 938 return EOPNOTSUPP; 939 } 940} 941 942int 943sctp_flush(struct socket *so, int how) 944{ 945 /* 946 * We will just clear out the values and let subsequent close clear 947 * out the data, if any. Note if the user did a shutdown(SHUT_RD) 948 * they will not be able to read the data, the socket will block 949 * that from happening. 950 */ 951 struct sctp_inpcb *inp; 952 953 inp = (struct sctp_inpcb *)so->so_pcb; 954 if (inp == NULL) { 955 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 956 return EINVAL; 957 } 958 SCTP_INP_RLOCK(inp); 959 /* For the 1 to many model this does nothing */ 960 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 961 SCTP_INP_RUNLOCK(inp); 962 return (0); 963 } 964 SCTP_INP_RUNLOCK(inp); 965 if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) { 966 /* 967 * First make sure the sb will be happy, we don't use these 968 * except maybe the count 969 */ 970 SCTP_INP_WLOCK(inp); 971 SCTP_INP_READ_LOCK(inp); 972 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ; 973 SCTP_INP_READ_UNLOCK(inp); 974 SCTP_INP_WUNLOCK(inp); 975 so->so_rcv.sb_cc = 0; 976 so->so_rcv.sb_mbcnt = 0; 977 so->so_rcv.sb_mb = NULL; 978 } 979 if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) { 980 /* 981 * First make sure the sb will be happy, we don't use these 982 * except maybe the count 983 */ 984 so->so_snd.sb_cc = 0; 985 so->so_snd.sb_mbcnt = 0; 986 so->so_snd.sb_mb = NULL; 987 988 } 989 return (0); 990} 991 992int 993sctp_shutdown(struct socket *so) 994{ 995 struct sctp_inpcb *inp; 996 997 inp = (struct sctp_inpcb *)so->so_pcb; 998 if (inp == 0) { 999 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1000 return EINVAL; 1001 } 1002 SCTP_INP_RLOCK(inp); 1003 /* For UDP model this is a invalid call */ 1004 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 1005 /* Restore the flags that the soshutdown took away. */ 1006 SOCKBUF_LOCK(&so->so_rcv); 1007 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; 1008 SOCKBUF_UNLOCK(&so->so_rcv); 1009 /* This proc will wakeup for read and do nothing (I hope) */ 1010 SCTP_INP_RUNLOCK(inp); 1011 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1012 return (EOPNOTSUPP); 1013 } 1014 /* 1015 * Ok if we reach here its the TCP model and it is either a SHUT_WR 1016 * or SHUT_RDWR. This means we put the shutdown flag against it. 1017 */ 1018 { 1019 struct sctp_tcb *stcb; 1020 struct sctp_association *asoc; 1021 1022 if ((so->so_state & 1023 (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) { 1024 SCTP_INP_RUNLOCK(inp); 1025 return (ENOTCONN); 1026 } 1027 socantsendmore(so); 1028 1029 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1030 if (stcb == NULL) { 1031 /* 1032 * Ok we hit the case that the shutdown call was 1033 * made after an abort or something. Nothing to do 1034 * now. 1035 */ 1036 SCTP_INP_RUNLOCK(inp); 1037 return (0); 1038 } 1039 SCTP_TCB_LOCK(stcb); 1040 asoc = &stcb->asoc; 1041 if (TAILQ_EMPTY(&asoc->send_queue) && 1042 TAILQ_EMPTY(&asoc->sent_queue) && 1043 (asoc->stream_queue_cnt == 0)) { 1044 if (asoc->locked_on_sending) { 1045 goto abort_anyway; 1046 } 1047 /* there is nothing queued to send, so I'm done... */ 1048 if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) { 1049 /* only send SHUTDOWN the first time through */ 1050 sctp_stop_timers_for_shutdown(stcb); 1051 sctp_send_shutdown(stcb, 1052 stcb->asoc.primary_destination); 1053 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 1054 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 1055 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 1056 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 1057 } 1058 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 1059 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 1060 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 1061 stcb->sctp_ep, stcb, 1062 asoc->primary_destination); 1063 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 1064 stcb->sctp_ep, stcb, 1065 asoc->primary_destination); 1066 } 1067 } else { 1068 /* 1069 * we still got (or just got) data to send, so set 1070 * SHUTDOWN_PENDING 1071 */ 1072 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 1073 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 1074 asoc->primary_destination); 1075 1076 if (asoc->locked_on_sending) { 1077 /* Locked to send out the data */ 1078 struct sctp_stream_queue_pending *sp; 1079 1080 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 1081 if (sp == NULL) { 1082 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 1083 asoc->locked_on_sending->stream_no); 1084 } else { 1085 if ((sp->length == 0) && (sp->msg_is_complete == 0)) { 1086 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 1087 } 1088 } 1089 } 1090 if (TAILQ_EMPTY(&asoc->send_queue) && 1091 TAILQ_EMPTY(&asoc->sent_queue) && 1092 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 1093 struct mbuf *op_err; 1094 1095 abort_anyway: 1096 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 1097 0, M_DONTWAIT, 1, MT_DATA); 1098 if (op_err) { 1099 /* Fill in the user initiated abort */ 1100 struct sctp_paramhdr *ph; 1101 uint32_t *ippp; 1102 1103 SCTP_BUF_LEN(op_err) = 1104 sizeof(struct sctp_paramhdr) + sizeof(uint32_t); 1105 ph = mtod(op_err, 1106 struct sctp_paramhdr *); 1107 ph->param_type = htons( 1108 SCTP_CAUSE_USER_INITIATED_ABT); 1109 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 1110 ippp = (uint32_t *) (ph + 1); 1111 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1112 } 1113#if defined(SCTP_PANIC_ON_ABORT) 1114 panic("shutdown does an abort"); 1115#endif 1116 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6; 1117 sctp_abort_an_association(stcb->sctp_ep, stcb, 1118 SCTP_RESPONSE_TO_USER_REQ, 1119 op_err, SCTP_SO_LOCKED); 1120 goto skip_unlock; 1121 } else { 1122 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 1123 } 1124 } 1125 SCTP_TCB_UNLOCK(stcb); 1126 } 1127skip_unlock: 1128 SCTP_INP_RUNLOCK(inp); 1129 return 0; 1130} 1131 1132/* 1133 * copies a "user" presentable address and removes embedded scope, etc. 1134 * returns 0 on success, 1 on error 1135 */ 1136static uint32_t 1137sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa) 1138{ 1139#ifdef INET6 1140 struct sockaddr_in6 lsa6; 1141 1142 sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa, 1143 &lsa6); 1144#endif 1145 memcpy(ss, sa, sa->sa_len); 1146 return (0); 1147} 1148 1149 1150 1151/* 1152 * NOTE: assumes addr lock is held 1153 */ 1154static size_t 1155sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp, 1156 struct sctp_tcb *stcb, 1157 size_t limit, 1158 struct sockaddr_storage *sas, 1159 uint32_t vrf_id) 1160{ 1161 struct sctp_ifn *sctp_ifn; 1162 struct sctp_ifa *sctp_ifa; 1163 int loopback_scope, ipv4_local_scope, local_scope, site_scope; 1164 size_t actual; 1165 int ipv4_addr_legal, ipv6_addr_legal; 1166 struct sctp_vrf *vrf; 1167 1168 actual = 0; 1169 if (limit <= 0) 1170 return (actual); 1171 1172 if (stcb) { 1173 /* Turn on all the appropriate scope */ 1174 loopback_scope = stcb->asoc.loopback_scope; 1175 ipv4_local_scope = stcb->asoc.ipv4_local_scope; 1176 local_scope = stcb->asoc.local_scope; 1177 site_scope = stcb->asoc.site_scope; 1178 } else { 1179 /* Turn on ALL scope, since we look at the EP */ 1180 loopback_scope = ipv4_local_scope = local_scope = 1181 site_scope = 1; 1182 } 1183 ipv4_addr_legal = ipv6_addr_legal = 0; 1184 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1185 ipv6_addr_legal = 1; 1186 if (SCTP_IPV6_V6ONLY(inp) == 0) { 1187 ipv4_addr_legal = 1; 1188 } 1189 } else { 1190 ipv4_addr_legal = 1; 1191 } 1192 vrf = sctp_find_vrf(vrf_id); 1193 if (vrf == NULL) { 1194 return (0); 1195 } 1196 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1197 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1198 if ((loopback_scope == 0) && 1199 SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) { 1200 /* Skip loopback if loopback_scope not set */ 1201 continue; 1202 } 1203 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1204 if (stcb) { 1205 /* 1206 * For the BOUND-ALL case, the list 1207 * associated with a TCB is Always 1208 * considered a reverse list.. i.e. 1209 * it lists addresses that are NOT 1210 * part of the association. If this 1211 * is one of those we must skip it. 1212 */ 1213 if (sctp_is_addr_restricted(stcb, 1214 sctp_ifa)) { 1215 continue; 1216 } 1217 } 1218 switch (sctp_ifa->address.sa.sa_family) { 1219 case AF_INET: 1220 if (ipv4_addr_legal) { 1221 struct sockaddr_in *sin; 1222 1223 sin = (struct sockaddr_in *)&sctp_ifa->address.sa; 1224 if (sin->sin_addr.s_addr == 0) { 1225 /* 1226 * we skip 1227 * unspecifed 1228 * addresses 1229 */ 1230 continue; 1231 } 1232 if ((ipv4_local_scope == 0) && 1233 (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) { 1234 continue; 1235 } 1236#ifdef INET6 1237 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) { 1238 in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas); 1239 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1240 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6)); 1241 actual += sizeof(struct sockaddr_in6); 1242 } else { 1243#endif 1244 memcpy(sas, sin, sizeof(*sin)); 1245 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport; 1246 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin)); 1247 actual += sizeof(*sin); 1248#ifdef INET6 1249 } 1250#endif 1251 if (actual >= limit) { 1252 return (actual); 1253 } 1254 } else { 1255 continue; 1256 } 1257 break; 1258#ifdef INET6 1259 case AF_INET6: 1260 if (ipv6_addr_legal) { 1261 struct sockaddr_in6 *sin6; 1262 1263 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa; 1264 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 1265 /* 1266 * we skip 1267 * unspecifed 1268 * addresses 1269 */ 1270 continue; 1271 } 1272 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 1273 if (local_scope == 0) 1274 continue; 1275 if (sin6->sin6_scope_id == 0) { 1276 if (sa6_recoverscope(sin6) != 0) 1277 /* 1278 * 1279 * bad 1280 * 1281 * li 1282 * nk 1283 * 1284 * loc 1285 * al 1286 * 1287 * add 1288 * re 1289 * ss 1290 * */ 1291 continue; 1292 } 1293 } 1294 if ((site_scope == 0) && 1295 (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) { 1296 continue; 1297 } 1298 memcpy(sas, sin6, sizeof(*sin6)); 1299 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1300 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6)); 1301 actual += sizeof(*sin6); 1302 if (actual >= limit) { 1303 return (actual); 1304 } 1305 } else { 1306 continue; 1307 } 1308 break; 1309#endif 1310 default: 1311 /* TSNH */ 1312 break; 1313 } 1314 } 1315 } 1316 } else { 1317 struct sctp_laddr *laddr; 1318 1319 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1320 if (stcb) { 1321 if (sctp_is_addr_restricted(stcb, laddr->ifa)) { 1322 continue; 1323 } 1324 } 1325 if (sctp_fill_user_address(sas, &laddr->ifa->address.sa)) 1326 continue; 1327 1328 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1329 sas = (struct sockaddr_storage *)((caddr_t)sas + 1330 laddr->ifa->address.sa.sa_len); 1331 actual += laddr->ifa->address.sa.sa_len; 1332 if (actual >= limit) { 1333 return (actual); 1334 } 1335 } 1336 } 1337 return (actual); 1338} 1339 1340static size_t 1341sctp_fill_up_addresses(struct sctp_inpcb *inp, 1342 struct sctp_tcb *stcb, 1343 size_t limit, 1344 struct sockaddr_storage *sas) 1345{ 1346 size_t size = 0; 1347 1348 SCTP_IPI_ADDR_RLOCK(); 1349 /* fill up addresses for the endpoint's default vrf */ 1350 size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas, 1351 inp->def_vrf_id); 1352 SCTP_IPI_ADDR_RUNLOCK(); 1353 return (size); 1354} 1355 1356/* 1357 * NOTE: assumes addr lock is held 1358 */ 1359static int 1360sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id) 1361{ 1362 int cnt = 0; 1363 struct sctp_vrf *vrf = NULL; 1364 1365 /* 1366 * In both sub-set bound an bound_all cases we return the MAXIMUM 1367 * number of addresses that you COULD get. In reality the sub-set 1368 * bound may have an exclusion list for a given TCB OR in the 1369 * bound-all case a TCB may NOT include the loopback or other 1370 * addresses as well. 1371 */ 1372 vrf = sctp_find_vrf(vrf_id); 1373 if (vrf == NULL) { 1374 return (0); 1375 } 1376 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1377 struct sctp_ifn *sctp_ifn; 1378 struct sctp_ifa *sctp_ifa; 1379 1380 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1381 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1382 /* Count them if they are the right type */ 1383 if (sctp_ifa->address.sa.sa_family == AF_INET) { 1384 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1385 cnt += sizeof(struct sockaddr_in6); 1386 else 1387 cnt += sizeof(struct sockaddr_in); 1388 1389 } else if (sctp_ifa->address.sa.sa_family == AF_INET6) 1390 cnt += sizeof(struct sockaddr_in6); 1391 } 1392 } 1393 } else { 1394 struct sctp_laddr *laddr; 1395 1396 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1397 if (laddr->ifa->address.sa.sa_family == AF_INET) { 1398 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1399 cnt += sizeof(struct sockaddr_in6); 1400 else 1401 cnt += sizeof(struct sockaddr_in); 1402 1403 } else if (laddr->ifa->address.sa.sa_family == AF_INET6) 1404 cnt += sizeof(struct sockaddr_in6); 1405 } 1406 } 1407 return (cnt); 1408} 1409 1410static int 1411sctp_count_max_addresses(struct sctp_inpcb *inp) 1412{ 1413 int cnt = 0; 1414 1415 SCTP_IPI_ADDR_RLOCK(); 1416 /* count addresses for the endpoint's default VRF */ 1417 cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id); 1418 SCTP_IPI_ADDR_RUNLOCK(); 1419 return (cnt); 1420} 1421 1422static int 1423sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval, 1424 size_t optsize, void *p, int delay) 1425{ 1426 int error = 0; 1427 int creat_lock_on = 0; 1428 struct sctp_tcb *stcb = NULL; 1429 struct sockaddr *sa; 1430 int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr; 1431 int added = 0; 1432 uint32_t vrf_id; 1433 int bad_addresses = 0; 1434 sctp_assoc_t *a_id; 1435 1436 SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n"); 1437 1438 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 1439 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 1440 /* We are already connected AND the TCP model */ 1441 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 1442 return (EADDRINUSE); 1443 } 1444 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) && 1445 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) { 1446 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1447 return (EINVAL); 1448 } 1449 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 1450 SCTP_INP_RLOCK(inp); 1451 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1452 SCTP_INP_RUNLOCK(inp); 1453 } 1454 if (stcb) { 1455 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1456 return (EALREADY); 1457 } 1458 SCTP_INP_INCR_REF(inp); 1459 SCTP_ASOC_CREATE_LOCK(inp); 1460 creat_lock_on = 1; 1461 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 1462 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 1463 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 1464 error = EFAULT; 1465 goto out_now; 1466 } 1467 totaddrp = (int *)optval; 1468 totaddr = *totaddrp; 1469 sa = (struct sockaddr *)(totaddrp + 1); 1470 stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses); 1471 if ((stcb != NULL) || bad_addresses) { 1472 /* Already have or am bring up an association */ 1473 SCTP_ASOC_CREATE_UNLOCK(inp); 1474 creat_lock_on = 0; 1475 if (stcb) 1476 SCTP_TCB_UNLOCK(stcb); 1477 if (bad_addresses == 0) { 1478 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1479 error = EALREADY; 1480 } 1481 goto out_now; 1482 } 1483#ifdef INET6 1484 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 1485 (num_v6 > 0)) { 1486 error = EINVAL; 1487 goto out_now; 1488 } 1489 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && 1490 (num_v4 > 0)) { 1491 struct in6pcb *inp6; 1492 1493 inp6 = (struct in6pcb *)inp; 1494 if (SCTP_IPV6_V6ONLY(inp6)) { 1495 /* 1496 * if IPV6_V6ONLY flag, ignore connections destined 1497 * to a v4 addr or v4-mapped addr 1498 */ 1499 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1500 error = EINVAL; 1501 goto out_now; 1502 } 1503 } 1504#endif /* INET6 */ 1505 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 1506 SCTP_PCB_FLAGS_UNBOUND) { 1507 /* Bind a ephemeral port */ 1508 error = sctp_inpcb_bind(so, NULL, NULL, p); 1509 if (error) { 1510 goto out_now; 1511 } 1512 } 1513 /* FIX ME: do we want to pass in a vrf on the connect call? */ 1514 vrf_id = inp->def_vrf_id; 1515 1516 1517 /* We are GOOD to go */ 1518 stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id, 1519 (struct thread *)p 1520 ); 1521 if (stcb == NULL) { 1522 /* Gak! no memory */ 1523 goto out_now; 1524 } 1525 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 1526 /* move to second address */ 1527 if (sa->sa_family == AF_INET) 1528 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in)); 1529 else 1530 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6)); 1531 1532 error = 0; 1533 added = sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error); 1534 /* Fill in the return id */ 1535 if (error) { 1536 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1537 goto out_now; 1538 } 1539 a_id = (sctp_assoc_t *) optval; 1540 *a_id = sctp_get_associd(stcb); 1541 1542 /* initialize authentication parameters for the assoc */ 1543 sctp_initialize_auth_params(inp, stcb); 1544 1545 if (delay) { 1546 /* doing delayed connection */ 1547 stcb->asoc.delayed_connection = 1; 1548 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination); 1549 } else { 1550 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 1551 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 1552 } 1553 SCTP_TCB_UNLOCK(stcb); 1554 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 1555 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 1556 /* Set the connected flag so we can queue data */ 1557 soisconnecting(so); 1558 } 1559out_now: 1560 if (creat_lock_on) { 1561 SCTP_ASOC_CREATE_UNLOCK(inp); 1562 } 1563 SCTP_INP_DECR_REF(inp); 1564 return error; 1565} 1566 1567#define SCTP_FIND_STCB(inp, stcb, assoc_id) { \ 1568 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\ 1569 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \ 1570 SCTP_INP_RLOCK(inp); \ 1571 stcb = LIST_FIRST(&inp->sctp_asoc_list); \ 1572 if (stcb) { \ 1573 SCTP_TCB_LOCK(stcb); \ 1574 } \ 1575 SCTP_INP_RUNLOCK(inp); \ 1576 } else if (assoc_id != 0) { \ 1577 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \ 1578 if (stcb == NULL) { \ 1579 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \ 1580 error = ENOENT; \ 1581 break; \ 1582 } \ 1583 } else { \ 1584 stcb = NULL; \ 1585 } \ 1586 } 1587 1588 1589#define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\ 1590 if (size < sizeof(type)) { \ 1591 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \ 1592 error = EINVAL; \ 1593 break; \ 1594 } else { \ 1595 destp = (type *)srcp; \ 1596 } \ 1597 } 1598 1599static int 1600sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize, 1601 void *p) 1602{ 1603 struct sctp_inpcb *inp = NULL; 1604 int error, val = 0; 1605 struct sctp_tcb *stcb = NULL; 1606 1607 if (optval == NULL) { 1608 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1609 return (EINVAL); 1610 } 1611 inp = (struct sctp_inpcb *)so->so_pcb; 1612 if (inp == 0) { 1613 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1614 return EINVAL; 1615 } 1616 error = 0; 1617 1618 switch (optname) { 1619 case SCTP_NODELAY: 1620 case SCTP_AUTOCLOSE: 1621 case SCTP_EXPLICIT_EOR: 1622 case SCTP_AUTO_ASCONF: 1623 case SCTP_DISABLE_FRAGMENTS: 1624 case SCTP_I_WANT_MAPPED_V4_ADDR: 1625 case SCTP_USE_EXT_RCVINFO: 1626 SCTP_INP_RLOCK(inp); 1627 switch (optname) { 1628 case SCTP_DISABLE_FRAGMENTS: 1629 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT); 1630 break; 1631 case SCTP_I_WANT_MAPPED_V4_ADDR: 1632 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4); 1633 break; 1634 case SCTP_AUTO_ASCONF: 1635 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1636 /* only valid for bound all sockets */ 1637 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF); 1638 } else { 1639 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1640 error = EINVAL; 1641 goto flags_out; 1642 } 1643 break; 1644 case SCTP_EXPLICIT_EOR: 1645 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR); 1646 break; 1647 case SCTP_NODELAY: 1648 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY); 1649 break; 1650 case SCTP_USE_EXT_RCVINFO: 1651 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO); 1652 break; 1653 case SCTP_AUTOCLOSE: 1654 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE)) 1655 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time); 1656 else 1657 val = 0; 1658 break; 1659 1660 default: 1661 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 1662 error = ENOPROTOOPT; 1663 } /* end switch (sopt->sopt_name) */ 1664 if (optname != SCTP_AUTOCLOSE) { 1665 /* make it an "on/off" value */ 1666 val = (val != 0); 1667 } 1668 if (*optsize < sizeof(val)) { 1669 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1670 error = EINVAL; 1671 } 1672flags_out: 1673 SCTP_INP_RUNLOCK(inp); 1674 if (error == 0) { 1675 /* return the option value */ 1676 *(int *)optval = val; 1677 *optsize = sizeof(val); 1678 } 1679 break; 1680 case SCTP_GET_PACKET_LOG: 1681 { 1682#ifdef SCTP_PACKET_LOGGING 1683 uint8_t *target; 1684 int ret; 1685 1686 SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize); 1687 ret = sctp_copy_out_packet_log(target, (int)*optsize); 1688 *optsize = ret; 1689#else 1690 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1691 error = EOPNOTSUPP; 1692#endif 1693 break; 1694 } 1695 case SCTP_REUSE_PORT: 1696 { 1697 uint32_t *value; 1698 1699 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) { 1700 /* Can't do this for a 1-m socket */ 1701 error = EINVAL; 1702 break; 1703 } 1704 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1705 *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE); 1706 *optsize = sizeof(uint32_t); 1707 } 1708 break; 1709 case SCTP_PARTIAL_DELIVERY_POINT: 1710 { 1711 uint32_t *value; 1712 1713 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1714 *value = inp->partial_delivery_point; 1715 *optsize = sizeof(uint32_t); 1716 } 1717 break; 1718 case SCTP_FRAGMENT_INTERLEAVE: 1719 { 1720 uint32_t *value; 1721 1722 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1723 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) { 1724 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) { 1725 *value = SCTP_FRAG_LEVEL_2; 1726 } else { 1727 *value = SCTP_FRAG_LEVEL_1; 1728 } 1729 } else { 1730 *value = SCTP_FRAG_LEVEL_0; 1731 } 1732 *optsize = sizeof(uint32_t); 1733 } 1734 break; 1735 case SCTP_CMT_ON_OFF: 1736 { 1737 struct sctp_assoc_value *av; 1738 1739 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1740 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1741 if (stcb) { 1742 av->assoc_value = stcb->asoc.sctp_cmt_on_off; 1743 SCTP_TCB_UNLOCK(stcb); 1744 } else { 1745 SCTP_INP_RLOCK(inp); 1746 av->assoc_value = inp->sctp_cmt_on_off; 1747 SCTP_INP_RUNLOCK(inp); 1748 } 1749 *optsize = sizeof(*av); 1750 } 1751 break; 1752 /* JRS - Get socket option for pluggable congestion control */ 1753 case SCTP_PLUGGABLE_CC: 1754 { 1755 struct sctp_assoc_value *av; 1756 1757 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1758 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1759 if (stcb) { 1760 av->assoc_value = stcb->asoc.congestion_control_module; 1761 SCTP_TCB_UNLOCK(stcb); 1762 } else { 1763 av->assoc_value = inp->sctp_ep.sctp_default_cc_module; 1764 } 1765 *optsize = sizeof(*av); 1766 } 1767 break; 1768 case SCTP_GET_ADDR_LEN: 1769 { 1770 struct sctp_assoc_value *av; 1771 1772 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1773 error = EINVAL; 1774#ifdef INET 1775 if (av->assoc_value == AF_INET) { 1776 av->assoc_value = sizeof(struct sockaddr_in); 1777 error = 0; 1778 } 1779#endif 1780#ifdef INET6 1781 if (av->assoc_value == AF_INET6) { 1782 av->assoc_value = sizeof(struct sockaddr_in6); 1783 error = 0; 1784 } 1785#endif 1786 if (error) { 1787 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1788 } 1789 *optsize = sizeof(*av); 1790 } 1791 break; 1792 case SCTP_GET_ASSOC_NUMBER: 1793 { 1794 uint32_t *value, cnt; 1795 1796 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1797 cnt = 0; 1798 SCTP_INP_RLOCK(inp); 1799 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1800 cnt++; 1801 } 1802 SCTP_INP_RUNLOCK(inp); 1803 *value = cnt; 1804 *optsize = sizeof(uint32_t); 1805 } 1806 break; 1807 1808 case SCTP_GET_ASSOC_ID_LIST: 1809 { 1810 struct sctp_assoc_ids *ids; 1811 unsigned int at, limit; 1812 1813 SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize); 1814 at = 0; 1815 limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t); 1816 SCTP_INP_RLOCK(inp); 1817 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1818 if (at < limit) { 1819 ids->gaids_assoc_id[at++] = sctp_get_associd(stcb); 1820 } else { 1821 error = EINVAL; 1822 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1823 break; 1824 } 1825 } 1826 SCTP_INP_RUNLOCK(inp); 1827 ids->gaids_number_of_ids = at; 1828 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t)); 1829 } 1830 break; 1831 case SCTP_CONTEXT: 1832 { 1833 struct sctp_assoc_value *av; 1834 1835 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1836 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1837 1838 if (stcb) { 1839 av->assoc_value = stcb->asoc.context; 1840 SCTP_TCB_UNLOCK(stcb); 1841 } else { 1842 SCTP_INP_RLOCK(inp); 1843 av->assoc_value = inp->sctp_context; 1844 SCTP_INP_RUNLOCK(inp); 1845 } 1846 *optsize = sizeof(*av); 1847 } 1848 break; 1849 case SCTP_VRF_ID: 1850 { 1851 uint32_t *default_vrfid; 1852 1853 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize); 1854 *default_vrfid = inp->def_vrf_id; 1855 break; 1856 } 1857 case SCTP_GET_ASOC_VRF: 1858 { 1859 struct sctp_assoc_value *id; 1860 1861 SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize); 1862 SCTP_FIND_STCB(inp, stcb, id->assoc_id); 1863 if (stcb == NULL) { 1864 error = EINVAL; 1865 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1866 break; 1867 } 1868 id->assoc_value = stcb->asoc.vrf_id; 1869 break; 1870 } 1871 case SCTP_GET_VRF_IDS: 1872 { 1873 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1874 error = EOPNOTSUPP; 1875 break; 1876 } 1877 case SCTP_GET_NONCE_VALUES: 1878 { 1879 struct sctp_get_nonce_values *gnv; 1880 1881 SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize); 1882 SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id); 1883 1884 if (stcb) { 1885 gnv->gn_peers_tag = stcb->asoc.peer_vtag; 1886 gnv->gn_local_tag = stcb->asoc.my_vtag; 1887 SCTP_TCB_UNLOCK(stcb); 1888 } else { 1889 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1890 error = ENOTCONN; 1891 } 1892 *optsize = sizeof(*gnv); 1893 } 1894 break; 1895 case SCTP_DELAYED_SACK: 1896 { 1897 struct sctp_sack_info *sack; 1898 1899 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize); 1900 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 1901 if (stcb) { 1902 sack->sack_delay = stcb->asoc.delayed_ack; 1903 sack->sack_freq = stcb->asoc.sack_freq; 1904 SCTP_TCB_UNLOCK(stcb); 1905 } else { 1906 SCTP_INP_RLOCK(inp); 1907 sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]); 1908 sack->sack_freq = inp->sctp_ep.sctp_sack_freq; 1909 SCTP_INP_RUNLOCK(inp); 1910 } 1911 *optsize = sizeof(*sack); 1912 } 1913 break; 1914 1915 case SCTP_GET_SNDBUF_USE: 1916 { 1917 struct sctp_sockstat *ss; 1918 1919 SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize); 1920 SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id); 1921 1922 if (stcb) { 1923 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size; 1924 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue + 1925 stcb->asoc.size_on_all_streams); 1926 SCTP_TCB_UNLOCK(stcb); 1927 } else { 1928 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1929 error = ENOTCONN; 1930 } 1931 *optsize = sizeof(struct sctp_sockstat); 1932 } 1933 break; 1934 case SCTP_MAX_BURST: 1935 { 1936 uint8_t *value; 1937 1938 SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize); 1939 1940 SCTP_INP_RLOCK(inp); 1941 *value = inp->sctp_ep.max_burst; 1942 SCTP_INP_RUNLOCK(inp); 1943 *optsize = sizeof(uint8_t); 1944 } 1945 break; 1946 case SCTP_MAXSEG: 1947 { 1948 struct sctp_assoc_value *av; 1949 int ovh; 1950 1951 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1952 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1953 1954 if (stcb) { 1955 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc); 1956 SCTP_TCB_UNLOCK(stcb); 1957 } else { 1958 SCTP_INP_RLOCK(inp); 1959 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1960 ovh = SCTP_MED_OVERHEAD; 1961 } else { 1962 ovh = SCTP_MED_V4_OVERHEAD; 1963 } 1964 if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT) 1965 av->assoc_value = 0; 1966 else 1967 av->assoc_value = inp->sctp_frag_point - ovh; 1968 SCTP_INP_RUNLOCK(inp); 1969 } 1970 *optsize = sizeof(struct sctp_assoc_value); 1971 } 1972 break; 1973 case SCTP_GET_STAT_LOG: 1974 error = sctp_fill_stat_log(optval, optsize); 1975 break; 1976 case SCTP_EVENTS: 1977 { 1978 struct sctp_event_subscribe *events; 1979 1980 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize); 1981 memset(events, 0, sizeof(*events)); 1982 SCTP_INP_RLOCK(inp); 1983 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT)) 1984 events->sctp_data_io_event = 1; 1985 1986 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT)) 1987 events->sctp_association_event = 1; 1988 1989 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT)) 1990 events->sctp_address_event = 1; 1991 1992 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT)) 1993 events->sctp_send_failure_event = 1; 1994 1995 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR)) 1996 events->sctp_peer_error_event = 1; 1997 1998 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT)) 1999 events->sctp_shutdown_event = 1; 2000 2001 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT)) 2002 events->sctp_partial_delivery_event = 1; 2003 2004 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT)) 2005 events->sctp_adaptation_layer_event = 1; 2006 2007 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT)) 2008 events->sctp_authentication_event = 1; 2009 2010 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT)) 2011 events->sctp_sender_dry_event = 1; 2012 2013 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT)) 2014 events->sctp_stream_reset_event = 1; 2015 SCTP_INP_RUNLOCK(inp); 2016 *optsize = sizeof(struct sctp_event_subscribe); 2017 } 2018 break; 2019 2020 case SCTP_ADAPTATION_LAYER: 2021 { 2022 uint32_t *value; 2023 2024 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2025 2026 SCTP_INP_RLOCK(inp); 2027 *value = inp->sctp_ep.adaptation_layer_indicator; 2028 SCTP_INP_RUNLOCK(inp); 2029 *optsize = sizeof(uint32_t); 2030 } 2031 break; 2032 case SCTP_SET_INITIAL_DBG_SEQ: 2033 { 2034 uint32_t *value; 2035 2036 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2037 SCTP_INP_RLOCK(inp); 2038 *value = inp->sctp_ep.initial_sequence_debug; 2039 SCTP_INP_RUNLOCK(inp); 2040 *optsize = sizeof(uint32_t); 2041 } 2042 break; 2043 case SCTP_GET_LOCAL_ADDR_SIZE: 2044 { 2045 uint32_t *value; 2046 2047 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2048 SCTP_INP_RLOCK(inp); 2049 *value = sctp_count_max_addresses(inp); 2050 SCTP_INP_RUNLOCK(inp); 2051 *optsize = sizeof(uint32_t); 2052 } 2053 break; 2054 case SCTP_GET_REMOTE_ADDR_SIZE: 2055 { 2056 uint32_t *value; 2057 size_t size; 2058 struct sctp_nets *net; 2059 2060 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2061 /* FIXME MT: change to sctp_assoc_value? */ 2062 SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value); 2063 2064 if (stcb) { 2065 size = 0; 2066 /* Count the sizes */ 2067 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2068 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) || 2069 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 2070 size += sizeof(struct sockaddr_in6); 2071 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 2072 size += sizeof(struct sockaddr_in); 2073 } else { 2074 /* huh */ 2075 break; 2076 } 2077 } 2078 SCTP_TCB_UNLOCK(stcb); 2079 *value = (uint32_t) size; 2080 } else { 2081 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2082 error = ENOTCONN; 2083 } 2084 *optsize = sizeof(uint32_t); 2085 } 2086 break; 2087 case SCTP_GET_PEER_ADDRESSES: 2088 /* 2089 * Get the address information, an array is passed in to 2090 * fill up we pack it. 2091 */ 2092 { 2093 size_t cpsz, left; 2094 struct sockaddr_storage *sas; 2095 struct sctp_nets *net; 2096 struct sctp_getaddresses *saddr; 2097 2098 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2099 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2100 2101 if (stcb) { 2102 left = (*optsize) - sizeof(struct sctp_getaddresses); 2103 *optsize = sizeof(struct sctp_getaddresses); 2104 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2105 2106 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2107 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) || 2108 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 2109 cpsz = sizeof(struct sockaddr_in6); 2110 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 2111 cpsz = sizeof(struct sockaddr_in); 2112 } else { 2113 /* huh */ 2114 break; 2115 } 2116 if (left < cpsz) { 2117 /* not enough room. */ 2118 break; 2119 } 2120#ifdef INET6 2121 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) && 2122 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) { 2123 /* Must map the address */ 2124 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr, 2125 (struct sockaddr_in6 *)sas); 2126 } else { 2127#endif 2128 memcpy(sas, &net->ro._l_addr, cpsz); 2129#ifdef INET6 2130 } 2131#endif 2132 ((struct sockaddr_in *)sas)->sin_port = stcb->rport; 2133 2134 sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz); 2135 left -= cpsz; 2136 *optsize += cpsz; 2137 } 2138 SCTP_TCB_UNLOCK(stcb); 2139 } else { 2140 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2141 error = ENOENT; 2142 } 2143 } 2144 break; 2145 case SCTP_GET_LOCAL_ADDRESSES: 2146 { 2147 size_t limit, actual; 2148 struct sockaddr_storage *sas; 2149 struct sctp_getaddresses *saddr; 2150 2151 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2152 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2153 2154 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2155 limit = *optsize - sizeof(sctp_assoc_t); 2156 actual = sctp_fill_up_addresses(inp, stcb, limit, sas); 2157 if (stcb) { 2158 SCTP_TCB_UNLOCK(stcb); 2159 } 2160 *optsize = sizeof(struct sockaddr_storage) + actual; 2161 } 2162 break; 2163 case SCTP_PEER_ADDR_PARAMS: 2164 { 2165 struct sctp_paddrparams *paddrp; 2166 struct sctp_nets *net; 2167 2168 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize); 2169 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 2170 2171 net = NULL; 2172 if (stcb) { 2173 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 2174 } else { 2175 /* 2176 * We increment here since 2177 * sctp_findassociation_ep_addr() wil do a 2178 * decrement if it finds the stcb as long as 2179 * the locked tcb (last argument) is NOT a 2180 * TCB.. aka NULL. 2181 */ 2182 SCTP_INP_INCR_REF(inp); 2183 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL); 2184 if (stcb == NULL) { 2185 SCTP_INP_DECR_REF(inp); 2186 } 2187 } 2188 if (stcb && (net == NULL)) { 2189 struct sockaddr *sa; 2190 2191 sa = (struct sockaddr *)&paddrp->spp_address; 2192 if (sa->sa_family == AF_INET) { 2193 struct sockaddr_in *sin; 2194 2195 sin = (struct sockaddr_in *)sa; 2196 if (sin->sin_addr.s_addr) { 2197 error = EINVAL; 2198 SCTP_TCB_UNLOCK(stcb); 2199 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2200 break; 2201 } 2202 } else if (sa->sa_family == AF_INET6) { 2203 struct sockaddr_in6 *sin6; 2204 2205 sin6 = (struct sockaddr_in6 *)sa; 2206 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 2207 error = EINVAL; 2208 SCTP_TCB_UNLOCK(stcb); 2209 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2210 break; 2211 } 2212 } else { 2213 error = EAFNOSUPPORT; 2214 SCTP_TCB_UNLOCK(stcb); 2215 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2216 break; 2217 } 2218 } 2219 if (stcb) { 2220 /* Applys to the specific association */ 2221 paddrp->spp_flags = 0; 2222 if (net) { 2223 int ovh; 2224 2225 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2226 ovh = SCTP_MED_OVERHEAD; 2227 } else { 2228 ovh = SCTP_MED_V4_OVERHEAD; 2229 } 2230 2231 2232 paddrp->spp_pathmaxrxt = net->failure_threshold; 2233 paddrp->spp_pathmtu = net->mtu - ovh; 2234 /* get flags for HB */ 2235 if (net->dest_state & SCTP_ADDR_NOHB) 2236 paddrp->spp_flags |= SPP_HB_DISABLE; 2237 else 2238 paddrp->spp_flags |= SPP_HB_ENABLE; 2239 /* get flags for PMTU */ 2240 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2241 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2242 } else { 2243 paddrp->spp_flags |= SPP_PMTUD_DISABLE; 2244 } 2245#ifdef INET 2246 if (net->ro._l_addr.sin.sin_family == AF_INET) { 2247 paddrp->spp_ipv4_tos = net->tos_flowlabel & 0x000000fc; 2248 paddrp->spp_flags |= SPP_IPV4_TOS; 2249 } 2250#endif 2251#ifdef INET6 2252 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 2253 paddrp->spp_ipv6_flowlabel = net->tos_flowlabel; 2254 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2255 } 2256#endif 2257 } else { 2258 /* 2259 * No destination so return default 2260 * value 2261 */ 2262 int cnt = 0; 2263 2264 paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure; 2265 paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc); 2266#ifdef INET 2267 paddrp->spp_ipv4_tos = stcb->asoc.default_tos & 0x000000fc; 2268 paddrp->spp_flags |= SPP_IPV4_TOS; 2269#endif 2270#ifdef INET6 2271 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel; 2272 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2273#endif 2274 /* default settings should be these */ 2275 if (stcb->asoc.hb_is_disabled == 0) { 2276 paddrp->spp_flags |= SPP_HB_ENABLE; 2277 } else { 2278 paddrp->spp_flags |= SPP_HB_DISABLE; 2279 } 2280 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2281 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2282 cnt++; 2283 } 2284 } 2285 if (cnt) { 2286 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2287 } 2288 } 2289 paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay; 2290 paddrp->spp_assoc_id = sctp_get_associd(stcb); 2291 SCTP_TCB_UNLOCK(stcb); 2292 } else { 2293 /* Use endpoint defaults */ 2294 SCTP_INP_RLOCK(inp); 2295 paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure; 2296 paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]); 2297 paddrp->spp_assoc_id = (sctp_assoc_t) 0; 2298 /* get inp's default */ 2299#ifdef INET 2300 paddrp->spp_ipv4_tos = inp->ip_inp.inp.inp_ip_tos; 2301 paddrp->spp_flags |= SPP_IPV4_TOS; 2302#endif 2303#ifdef INET6 2304 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2305 paddrp->spp_ipv6_flowlabel = ((struct in6pcb *)inp)->in6p_flowinfo; 2306 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2307 } 2308#endif 2309 /* can't return this */ 2310 paddrp->spp_pathmtu = 0; 2311 2312 /* default behavior, no stcb */ 2313 paddrp->spp_flags = SPP_PMTUD_ENABLE; 2314 2315 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) { 2316 paddrp->spp_flags |= SPP_HB_ENABLE; 2317 } else { 2318 paddrp->spp_flags |= SPP_HB_DISABLE; 2319 } 2320 SCTP_INP_RUNLOCK(inp); 2321 } 2322 *optsize = sizeof(struct sctp_paddrparams); 2323 } 2324 break; 2325 case SCTP_GET_PEER_ADDR_INFO: 2326 { 2327 struct sctp_paddrinfo *paddri; 2328 struct sctp_nets *net; 2329 2330 SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize); 2331 SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id); 2332 2333 net = NULL; 2334 if (stcb) { 2335 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address); 2336 } else { 2337 /* 2338 * We increment here since 2339 * sctp_findassociation_ep_addr() wil do a 2340 * decrement if it finds the stcb as long as 2341 * the locked tcb (last argument) is NOT a 2342 * TCB.. aka NULL. 2343 */ 2344 SCTP_INP_INCR_REF(inp); 2345 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL); 2346 if (stcb == NULL) { 2347 SCTP_INP_DECR_REF(inp); 2348 } 2349 } 2350 2351 if ((stcb) && (net)) { 2352 paddri->spinfo_state = net->dest_state & (SCTP_REACHABLE_MASK | SCTP_ADDR_NOHB); 2353 paddri->spinfo_cwnd = net->cwnd; 2354 paddri->spinfo_srtt = ((net->lastsa >> 2) + net->lastsv) >> 1; 2355 paddri->spinfo_rto = net->RTO; 2356 paddri->spinfo_assoc_id = sctp_get_associd(stcb); 2357 SCTP_TCB_UNLOCK(stcb); 2358 } else { 2359 if (stcb) { 2360 SCTP_TCB_UNLOCK(stcb); 2361 } 2362 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2363 error = ENOENT; 2364 } 2365 *optsize = sizeof(struct sctp_paddrinfo); 2366 } 2367 break; 2368 case SCTP_PCB_STATUS: 2369 { 2370 struct sctp_pcbinfo *spcb; 2371 2372 SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize); 2373 sctp_fill_pcbinfo(spcb); 2374 *optsize = sizeof(struct sctp_pcbinfo); 2375 } 2376 break; 2377 2378 case SCTP_STATUS: 2379 { 2380 struct sctp_nets *net; 2381 struct sctp_status *sstat; 2382 2383 SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize); 2384 SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id); 2385 2386 if (stcb == NULL) { 2387 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2388 error = EINVAL; 2389 break; 2390 } 2391 /* 2392 * I think passing the state is fine since 2393 * sctp_constants.h will be available to the user 2394 * land. 2395 */ 2396 sstat->sstat_state = stcb->asoc.state; 2397 sstat->sstat_assoc_id = sctp_get_associd(stcb); 2398 sstat->sstat_rwnd = stcb->asoc.peers_rwnd; 2399 sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt; 2400 /* 2401 * We can't include chunks that have been passed to 2402 * the socket layer. Only things in queue. 2403 */ 2404 sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue + 2405 stcb->asoc.cnt_on_all_streams); 2406 2407 2408 sstat->sstat_instrms = stcb->asoc.streamincnt; 2409 sstat->sstat_outstrms = stcb->asoc.streamoutcnt; 2410 sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc); 2411 memcpy(&sstat->sstat_primary.spinfo_address, 2412 &stcb->asoc.primary_destination->ro._l_addr, 2413 ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len); 2414 net = stcb->asoc.primary_destination; 2415 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport; 2416 /* 2417 * Again the user can get info from sctp_constants.h 2418 * for what the state of the network is. 2419 */ 2420 sstat->sstat_primary.spinfo_state = net->dest_state & SCTP_REACHABLE_MASK; 2421 sstat->sstat_primary.spinfo_cwnd = net->cwnd; 2422 sstat->sstat_primary.spinfo_srtt = net->lastsa; 2423 sstat->sstat_primary.spinfo_rto = net->RTO; 2424 sstat->sstat_primary.spinfo_mtu = net->mtu; 2425 sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb); 2426 SCTP_TCB_UNLOCK(stcb); 2427 *optsize = sizeof(*sstat); 2428 } 2429 break; 2430 case SCTP_RTOINFO: 2431 { 2432 struct sctp_rtoinfo *srto; 2433 2434 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize); 2435 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 2436 2437 if (stcb) { 2438 srto->srto_initial = stcb->asoc.initial_rto; 2439 srto->srto_max = stcb->asoc.maxrto; 2440 srto->srto_min = stcb->asoc.minrto; 2441 SCTP_TCB_UNLOCK(stcb); 2442 } else { 2443 SCTP_INP_RLOCK(inp); 2444 srto->srto_initial = inp->sctp_ep.initial_rto; 2445 srto->srto_max = inp->sctp_ep.sctp_maxrto; 2446 srto->srto_min = inp->sctp_ep.sctp_minrto; 2447 SCTP_INP_RUNLOCK(inp); 2448 } 2449 *optsize = sizeof(*srto); 2450 } 2451 break; 2452 case SCTP_ASSOCINFO: 2453 { 2454 struct sctp_assocparams *sasoc; 2455 uint32_t oldval; 2456 2457 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize); 2458 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 2459 2460 if (stcb) { 2461 oldval = sasoc->sasoc_cookie_life; 2462 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life); 2463 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times; 2464 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 2465 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd; 2466 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd; 2467 SCTP_TCB_UNLOCK(stcb); 2468 } else { 2469 SCTP_INP_RLOCK(inp); 2470 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life); 2471 sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times; 2472 sasoc->sasoc_number_peer_destinations = 0; 2473 sasoc->sasoc_peer_rwnd = 0; 2474 sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv); 2475 SCTP_INP_RUNLOCK(inp); 2476 } 2477 *optsize = sizeof(*sasoc); 2478 } 2479 break; 2480 case SCTP_DEFAULT_SEND_PARAM: 2481 { 2482 struct sctp_sndrcvinfo *s_info; 2483 2484 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize); 2485 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 2486 2487 if (stcb) { 2488 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send)); 2489 SCTP_TCB_UNLOCK(stcb); 2490 } else { 2491 SCTP_INP_RLOCK(inp); 2492 memcpy(s_info, &inp->def_send, sizeof(inp->def_send)); 2493 SCTP_INP_RUNLOCK(inp); 2494 } 2495 *optsize = sizeof(*s_info); 2496 } 2497 break; 2498 case SCTP_INITMSG: 2499 { 2500 struct sctp_initmsg *sinit; 2501 2502 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize); 2503 SCTP_INP_RLOCK(inp); 2504 sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count; 2505 sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome; 2506 sinit->sinit_max_attempts = inp->sctp_ep.max_init_times; 2507 sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max; 2508 SCTP_INP_RUNLOCK(inp); 2509 *optsize = sizeof(*sinit); 2510 } 2511 break; 2512 case SCTP_PRIMARY_ADDR: 2513 /* we allow a "get" operation on this */ 2514 { 2515 struct sctp_setprim *ssp; 2516 2517 SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize); 2518 SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id); 2519 2520 if (stcb) { 2521 /* simply copy out the sockaddr_storage... */ 2522 int len; 2523 2524 len = *optsize; 2525 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len) 2526 len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len; 2527 2528 memcpy(&ssp->ssp_addr, 2529 &stcb->asoc.primary_destination->ro._l_addr, 2530 len); 2531 SCTP_TCB_UNLOCK(stcb); 2532 } else { 2533 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2534 error = EINVAL; 2535 } 2536 *optsize = sizeof(*ssp); 2537 } 2538 break; 2539 2540 case SCTP_HMAC_IDENT: 2541 { 2542 struct sctp_hmacalgo *shmac; 2543 sctp_hmaclist_t *hmaclist; 2544 uint32_t size; 2545 int i; 2546 2547 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize); 2548 2549 SCTP_INP_RLOCK(inp); 2550 hmaclist = inp->sctp_ep.local_hmacs; 2551 if (hmaclist == NULL) { 2552 /* no HMACs to return */ 2553 *optsize = sizeof(*shmac); 2554 SCTP_INP_RUNLOCK(inp); 2555 break; 2556 } 2557 /* is there room for all of the hmac ids? */ 2558 size = sizeof(*shmac) + (hmaclist->num_algo * 2559 sizeof(shmac->shmac_idents[0])); 2560 if ((size_t)(*optsize) < size) { 2561 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2562 error = EINVAL; 2563 SCTP_INP_RUNLOCK(inp); 2564 break; 2565 } 2566 /* copy in the list */ 2567 shmac->shmac_number_of_idents = hmaclist->num_algo; 2568 for (i = 0; i < hmaclist->num_algo; i++) { 2569 shmac->shmac_idents[i] = hmaclist->hmac[i]; 2570 } 2571 SCTP_INP_RUNLOCK(inp); 2572 *optsize = size; 2573 break; 2574 } 2575 case SCTP_AUTH_ACTIVE_KEY: 2576 { 2577 struct sctp_authkeyid *scact; 2578 2579 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize); 2580 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 2581 2582 if (stcb) { 2583 /* get the active key on the assoc */ 2584 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid; 2585 SCTP_TCB_UNLOCK(stcb); 2586 } else { 2587 /* get the endpoint active key */ 2588 SCTP_INP_RLOCK(inp); 2589 scact->scact_keynumber = inp->sctp_ep.default_keyid; 2590 SCTP_INP_RUNLOCK(inp); 2591 } 2592 *optsize = sizeof(*scact); 2593 break; 2594 } 2595 case SCTP_LOCAL_AUTH_CHUNKS: 2596 { 2597 struct sctp_authchunks *sac; 2598 sctp_auth_chklist_t *chklist = NULL; 2599 size_t size = 0; 2600 2601 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2602 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2603 2604 if (stcb) { 2605 /* get off the assoc */ 2606 chklist = stcb->asoc.local_auth_chunks; 2607 /* is there enough space? */ 2608 size = sctp_auth_get_chklist_size(chklist); 2609 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2610 error = EINVAL; 2611 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2612 } else { 2613 /* copy in the chunks */ 2614 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2615 } 2616 SCTP_TCB_UNLOCK(stcb); 2617 } else { 2618 /* get off the endpoint */ 2619 SCTP_INP_RLOCK(inp); 2620 chklist = inp->sctp_ep.local_auth_chunks; 2621 /* is there enough space? */ 2622 size = sctp_auth_get_chklist_size(chklist); 2623 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2624 error = EINVAL; 2625 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2626 } else { 2627 /* copy in the chunks */ 2628 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2629 } 2630 SCTP_INP_RUNLOCK(inp); 2631 } 2632 *optsize = sizeof(struct sctp_authchunks) + size; 2633 break; 2634 } 2635 case SCTP_PEER_AUTH_CHUNKS: 2636 { 2637 struct sctp_authchunks *sac; 2638 sctp_auth_chklist_t *chklist = NULL; 2639 size_t size = 0; 2640 2641 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2642 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2643 2644 if (stcb) { 2645 /* get off the assoc */ 2646 chklist = stcb->asoc.peer_auth_chunks; 2647 /* is there enough space? */ 2648 size = sctp_auth_get_chklist_size(chklist); 2649 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2650 error = EINVAL; 2651 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2652 } else { 2653 /* copy in the chunks */ 2654 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2655 } 2656 SCTP_TCB_UNLOCK(stcb); 2657 } else { 2658 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2659 error = ENOENT; 2660 } 2661 *optsize = sizeof(struct sctp_authchunks) + size; 2662 break; 2663 } 2664 2665 2666 default: 2667 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 2668 error = ENOPROTOOPT; 2669 *optsize = 0; 2670 break; 2671 } /* end switch (sopt->sopt_name) */ 2672 return (error); 2673} 2674 2675static int 2676sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize, 2677 void *p) 2678{ 2679 int error, set_opt; 2680 uint32_t *mopt; 2681 struct sctp_tcb *stcb = NULL; 2682 struct sctp_inpcb *inp = NULL; 2683 uint32_t vrf_id; 2684 2685 if (optval == NULL) { 2686 SCTP_PRINTF("optval is NULL\n"); 2687 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2688 return (EINVAL); 2689 } 2690 inp = (struct sctp_inpcb *)so->so_pcb; 2691 if (inp == 0) { 2692 SCTP_PRINTF("inp is NULL?\n"); 2693 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2694 return EINVAL; 2695 } 2696 vrf_id = inp->def_vrf_id; 2697 2698 error = 0; 2699 switch (optname) { 2700 case SCTP_NODELAY: 2701 case SCTP_AUTOCLOSE: 2702 case SCTP_AUTO_ASCONF: 2703 case SCTP_EXPLICIT_EOR: 2704 case SCTP_DISABLE_FRAGMENTS: 2705 case SCTP_USE_EXT_RCVINFO: 2706 case SCTP_I_WANT_MAPPED_V4_ADDR: 2707 /* copy in the option value */ 2708 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 2709 set_opt = 0; 2710 if (error) 2711 break; 2712 switch (optname) { 2713 case SCTP_DISABLE_FRAGMENTS: 2714 set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT; 2715 break; 2716 case SCTP_AUTO_ASCONF: 2717 /* 2718 * NOTE: we don't really support this flag 2719 */ 2720 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 2721 /* only valid for bound all sockets */ 2722 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF; 2723 } else { 2724 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2725 return (EINVAL); 2726 } 2727 break; 2728 case SCTP_EXPLICIT_EOR: 2729 set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR; 2730 break; 2731 case SCTP_USE_EXT_RCVINFO: 2732 set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO; 2733 break; 2734 case SCTP_I_WANT_MAPPED_V4_ADDR: 2735 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2736 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4; 2737 } else { 2738 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2739 return (EINVAL); 2740 } 2741 break; 2742 case SCTP_NODELAY: 2743 set_opt = SCTP_PCB_FLAGS_NODELAY; 2744 break; 2745 case SCTP_AUTOCLOSE: 2746 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2747 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 2748 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2749 return (EINVAL); 2750 } 2751 set_opt = SCTP_PCB_FLAGS_AUTOCLOSE; 2752 /* 2753 * The value is in ticks. Note this does not effect 2754 * old associations, only new ones. 2755 */ 2756 inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt); 2757 break; 2758 } 2759 SCTP_INP_WLOCK(inp); 2760 if (*mopt != 0) { 2761 sctp_feature_on(inp, set_opt); 2762 } else { 2763 sctp_feature_off(inp, set_opt); 2764 } 2765 SCTP_INP_WUNLOCK(inp); 2766 break; 2767 case SCTP_REUSE_PORT: 2768 { 2769 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 2770 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) { 2771 /* Can't set it after we are bound */ 2772 error = EINVAL; 2773 break; 2774 } 2775 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) { 2776 /* Can't do this for a 1-m socket */ 2777 error = EINVAL; 2778 break; 2779 } 2780 if (optval) 2781 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE); 2782 else 2783 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE); 2784 } 2785 break; 2786 case SCTP_PARTIAL_DELIVERY_POINT: 2787 { 2788 uint32_t *value; 2789 2790 SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize); 2791 if (*value > SCTP_SB_LIMIT_RCV(so)) { 2792 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2793 error = EINVAL; 2794 break; 2795 } 2796 inp->partial_delivery_point = *value; 2797 } 2798 break; 2799 case SCTP_FRAGMENT_INTERLEAVE: 2800 /* not yet until we re-write sctp_recvmsg() */ 2801 { 2802 uint32_t *level; 2803 2804 SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize); 2805 if (*level == SCTP_FRAG_LEVEL_2) { 2806 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2807 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2808 } else if (*level == SCTP_FRAG_LEVEL_1) { 2809 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2810 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2811 } else if (*level == SCTP_FRAG_LEVEL_0) { 2812 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2813 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2814 2815 } else { 2816 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2817 error = EINVAL; 2818 } 2819 } 2820 break; 2821 case SCTP_CMT_ON_OFF: 2822 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) { 2823 struct sctp_assoc_value *av; 2824 2825 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2826 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2827 if (stcb) { 2828 if (av->assoc_value != 0) 2829 stcb->asoc.sctp_cmt_on_off = 1; 2830 else 2831 stcb->asoc.sctp_cmt_on_off = 0; 2832 SCTP_TCB_UNLOCK(stcb); 2833 } else { 2834 SCTP_INP_WLOCK(inp); 2835 if (av->assoc_value != 0) 2836 inp->sctp_cmt_on_off = 1; 2837 else 2838 inp->sctp_cmt_on_off = 0; 2839 SCTP_INP_WUNLOCK(inp); 2840 } 2841 } else { 2842 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 2843 error = ENOPROTOOPT; 2844 } 2845 break; 2846 /* JRS - Set socket option for pluggable congestion control */ 2847 case SCTP_PLUGGABLE_CC: 2848 { 2849 struct sctp_assoc_value *av; 2850 2851 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2852 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2853 if (stcb) { 2854 switch (av->assoc_value) { 2855 /* 2856 * JRS - Standard TCP congestion 2857 * control 2858 */ 2859 case SCTP_CC_RFC2581: 2860 { 2861 stcb->asoc.congestion_control_module = SCTP_CC_RFC2581; 2862 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; 2863 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_cwnd_update_after_sack; 2864 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_cwnd_update_after_fr; 2865 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; 2866 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; 2867 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2868 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2869 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; 2870 SCTP_TCB_UNLOCK(stcb); 2871 break; 2872 } 2873 /* 2874 * JRS - High Speed TCP congestion 2875 * control (Floyd) 2876 */ 2877 case SCTP_CC_HSTCP: 2878 { 2879 stcb->asoc.congestion_control_module = SCTP_CC_HSTCP; 2880 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; 2881 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_hs_cwnd_update_after_sack; 2882 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_hs_cwnd_update_after_fr; 2883 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; 2884 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; 2885 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2886 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2887 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; 2888 SCTP_TCB_UNLOCK(stcb); 2889 break; 2890 } 2891 /* JRS - HTCP congestion control */ 2892 case SCTP_CC_HTCP: 2893 { 2894 stcb->asoc.congestion_control_module = SCTP_CC_HTCP; 2895 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_htcp_set_initial_cc_param; 2896 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_htcp_cwnd_update_after_sack; 2897 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_htcp_cwnd_update_after_fr; 2898 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_htcp_cwnd_update_after_timeout; 2899 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_htcp_cwnd_update_after_ecn_echo; 2900 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2901 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2902 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_htcp_cwnd_update_after_fr_timer; 2903 SCTP_TCB_UNLOCK(stcb); 2904 break; 2905 } 2906 /* 2907 * JRS - All other values are 2908 * invalid 2909 */ 2910 default: 2911 { 2912 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2913 error = EINVAL; 2914 SCTP_TCB_UNLOCK(stcb); 2915 break; 2916 } 2917 } 2918 } else { 2919 switch (av->assoc_value) { 2920 case SCTP_CC_RFC2581: 2921 case SCTP_CC_HSTCP: 2922 case SCTP_CC_HTCP: 2923 inp->sctp_ep.sctp_default_cc_module = av->assoc_value; 2924 break; 2925 default: 2926 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2927 error = EINVAL; 2928 break; 2929 }; 2930 } 2931 } 2932 break; 2933 case SCTP_CLR_STAT_LOG: 2934 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2935 error = EOPNOTSUPP; 2936 break; 2937 case SCTP_CONTEXT: 2938 { 2939 struct sctp_assoc_value *av; 2940 2941 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2942 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2943 2944 if (stcb) { 2945 stcb->asoc.context = av->assoc_value; 2946 SCTP_TCB_UNLOCK(stcb); 2947 } else { 2948 SCTP_INP_WLOCK(inp); 2949 inp->sctp_context = av->assoc_value; 2950 SCTP_INP_WUNLOCK(inp); 2951 } 2952 } 2953 break; 2954 case SCTP_VRF_ID: 2955 { 2956 uint32_t *default_vrfid; 2957 2958 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize); 2959 if (*default_vrfid > SCTP_MAX_VRF_ID) { 2960 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2961 error = EINVAL; 2962 break; 2963 } 2964 inp->def_vrf_id = *default_vrfid; 2965 break; 2966 } 2967 case SCTP_DEL_VRF_ID: 2968 { 2969 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2970 error = EOPNOTSUPP; 2971 break; 2972 } 2973 case SCTP_ADD_VRF_ID: 2974 { 2975 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2976 error = EOPNOTSUPP; 2977 break; 2978 } 2979 case SCTP_DELAYED_SACK: 2980 { 2981 struct sctp_sack_info *sack; 2982 2983 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize); 2984 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 2985 if (sack->sack_delay) { 2986 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) 2987 sack->sack_delay = SCTP_MAX_SACK_DELAY; 2988 } 2989 if (stcb) { 2990 if (sack->sack_delay) { 2991 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 2992 sack->sack_delay = TICKS_TO_MSEC(1); 2993 } 2994 stcb->asoc.delayed_ack = sack->sack_delay; 2995 } 2996 if (sack->sack_freq) { 2997 stcb->asoc.sack_freq = sack->sack_freq; 2998 } 2999 SCTP_TCB_UNLOCK(stcb); 3000 } else { 3001 SCTP_INP_WLOCK(inp); 3002 if (sack->sack_delay) { 3003 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 3004 sack->sack_delay = TICKS_TO_MSEC(1); 3005 } 3006 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay); 3007 } 3008 if (sack->sack_freq) { 3009 inp->sctp_ep.sctp_sack_freq = sack->sack_freq; 3010 } 3011 SCTP_INP_WUNLOCK(inp); 3012 } 3013 break; 3014 } 3015 case SCTP_AUTH_CHUNK: 3016 { 3017 struct sctp_authchunk *sauth; 3018 3019 SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize); 3020 3021 SCTP_INP_WLOCK(inp); 3022 if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) { 3023 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3024 error = EINVAL; 3025 } 3026 SCTP_INP_WUNLOCK(inp); 3027 break; 3028 } 3029 case SCTP_AUTH_KEY: 3030 { 3031 struct sctp_authkey *sca; 3032 struct sctp_keyhead *shared_keys; 3033 sctp_sharedkey_t *shared_key; 3034 sctp_key_t *key = NULL; 3035 size_t size; 3036 3037 SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize); 3038 SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id); 3039 size = optsize - sizeof(*sca); 3040 3041 if (stcb) { 3042 /* set it on the assoc */ 3043 shared_keys = &stcb->asoc.shared_keys; 3044 /* clear the cached keys for this key id */ 3045 sctp_clear_cachedkeys(stcb, sca->sca_keynumber); 3046 /* 3047 * create the new shared key and 3048 * insert/replace it 3049 */ 3050 if (size > 0) { 3051 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3052 if (key == NULL) { 3053 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3054 error = ENOMEM; 3055 SCTP_TCB_UNLOCK(stcb); 3056 break; 3057 } 3058 } 3059 shared_key = sctp_alloc_sharedkey(); 3060 if (shared_key == NULL) { 3061 sctp_free_key(key); 3062 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3063 error = ENOMEM; 3064 SCTP_TCB_UNLOCK(stcb); 3065 break; 3066 } 3067 shared_key->key = key; 3068 shared_key->keyid = sca->sca_keynumber; 3069 error = sctp_insert_sharedkey(shared_keys, shared_key); 3070 SCTP_TCB_UNLOCK(stcb); 3071 } else { 3072 /* set it on the endpoint */ 3073 SCTP_INP_WLOCK(inp); 3074 shared_keys = &inp->sctp_ep.shared_keys; 3075 /* 3076 * clear the cached keys on all assocs for 3077 * this key id 3078 */ 3079 sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber); 3080 /* 3081 * create the new shared key and 3082 * insert/replace it 3083 */ 3084 if (size > 0) { 3085 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3086 if (key == NULL) { 3087 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3088 error = ENOMEM; 3089 SCTP_INP_WUNLOCK(inp); 3090 break; 3091 } 3092 } 3093 shared_key = sctp_alloc_sharedkey(); 3094 if (shared_key == NULL) { 3095 sctp_free_key(key); 3096 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3097 error = ENOMEM; 3098 SCTP_INP_WUNLOCK(inp); 3099 break; 3100 } 3101 shared_key->key = key; 3102 shared_key->keyid = sca->sca_keynumber; 3103 error = sctp_insert_sharedkey(shared_keys, shared_key); 3104 SCTP_INP_WUNLOCK(inp); 3105 } 3106 break; 3107 } 3108 case SCTP_HMAC_IDENT: 3109 { 3110 struct sctp_hmacalgo *shmac; 3111 sctp_hmaclist_t *hmaclist; 3112 uint16_t hmacid; 3113 uint32_t i; 3114 3115 size_t found; 3116 3117 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize); 3118 if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) { 3119 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3120 error = EINVAL; 3121 break; 3122 } 3123 hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents); 3124 if (hmaclist == NULL) { 3125 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3126 error = ENOMEM; 3127 break; 3128 } 3129 for (i = 0; i < shmac->shmac_number_of_idents; i++) { 3130 hmacid = shmac->shmac_idents[i]; 3131 if (sctp_auth_add_hmacid(hmaclist, hmacid)) { 3132 /* invalid HMACs were found */ ; 3133 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3134 error = EINVAL; 3135 sctp_free_hmaclist(hmaclist); 3136 goto sctp_set_hmac_done; 3137 } 3138 } 3139 found = 0; 3140 for (i = 0; i < hmaclist->num_algo; i++) { 3141 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) { 3142 /* already in list */ 3143 found = 1; 3144 } 3145 } 3146 if (!found) { 3147 sctp_free_hmaclist(hmaclist); 3148 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3149 error = EINVAL; 3150 break; 3151 } 3152 /* set it on the endpoint */ 3153 SCTP_INP_WLOCK(inp); 3154 if (inp->sctp_ep.local_hmacs) 3155 sctp_free_hmaclist(inp->sctp_ep.local_hmacs); 3156 inp->sctp_ep.local_hmacs = hmaclist; 3157 SCTP_INP_WUNLOCK(inp); 3158 sctp_set_hmac_done: 3159 break; 3160 } 3161 case SCTP_AUTH_ACTIVE_KEY: 3162 { 3163 struct sctp_authkeyid *scact; 3164 3165 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, 3166 optsize); 3167 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 3168 3169 /* set the active key on the right place */ 3170 if (stcb) { 3171 /* set the active key on the assoc */ 3172 if (sctp_auth_setactivekey(stcb, 3173 scact->scact_keynumber)) { 3174 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3175 SCTP_FROM_SCTP_USRREQ, 3176 EINVAL); 3177 error = EINVAL; 3178 } 3179 SCTP_TCB_UNLOCK(stcb); 3180 } else { 3181 /* set the active key on the endpoint */ 3182 SCTP_INP_WLOCK(inp); 3183 if (sctp_auth_setactivekey_ep(inp, 3184 scact->scact_keynumber)) { 3185 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3186 SCTP_FROM_SCTP_USRREQ, 3187 EINVAL); 3188 error = EINVAL; 3189 } 3190 SCTP_INP_WUNLOCK(inp); 3191 } 3192 break; 3193 } 3194 case SCTP_AUTH_DELETE_KEY: 3195 { 3196 struct sctp_authkeyid *scdel; 3197 3198 SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, 3199 optsize); 3200 SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id); 3201 3202 /* delete the key from the right place */ 3203 if (stcb) { 3204 if (sctp_delete_sharedkey(stcb, 3205 scdel->scact_keynumber)) { 3206 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3207 SCTP_FROM_SCTP_USRREQ, 3208 EINVAL); 3209 error = EINVAL; 3210 } 3211 SCTP_TCB_UNLOCK(stcb); 3212 } else { 3213 SCTP_INP_WLOCK(inp); 3214 if (sctp_delete_sharedkey_ep(inp, 3215 scdel->scact_keynumber)) { 3216 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3217 SCTP_FROM_SCTP_USRREQ, 3218 EINVAL); 3219 error = EINVAL; 3220 } 3221 SCTP_INP_WUNLOCK(inp); 3222 } 3223 break; 3224 } 3225 case SCTP_AUTH_DEACTIVATE_KEY: 3226 { 3227 struct sctp_authkeyid *keyid; 3228 3229 SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, 3230 optsize); 3231 SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id); 3232 3233 /* deactivate the key from the right place */ 3234 if (stcb) { 3235 if (sctp_deact_sharedkey(stcb, 3236 keyid->scact_keynumber)) { 3237 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3238 SCTP_FROM_SCTP_USRREQ, 3239 EINVAL); 3240 error = EINVAL; 3241 } 3242 SCTP_TCB_UNLOCK(stcb); 3243 } else { 3244 SCTP_INP_WLOCK(inp); 3245 if (sctp_deact_sharedkey_ep(inp, 3246 keyid->scact_keynumber)) { 3247 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3248 SCTP_FROM_SCTP_USRREQ, 3249 EINVAL); 3250 error = EINVAL; 3251 } 3252 SCTP_INP_WUNLOCK(inp); 3253 } 3254 break; 3255 } 3256 3257 case SCTP_RESET_STREAMS: 3258 { 3259 struct sctp_stream_reset *strrst; 3260 uint8_t send_in = 0, send_tsn = 0, send_out = 0, 3261 addstream = 0; 3262 uint16_t addstrmcnt = 0; 3263 int i; 3264 3265 SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize); 3266 SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id); 3267 3268 if (stcb == NULL) { 3269 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 3270 error = ENOENT; 3271 break; 3272 } 3273 if (stcb->asoc.peer_supports_strreset == 0) { 3274 /* 3275 * Peer does not support it, we return 3276 * protocol not supported since this is true 3277 * for this feature and this peer, not the 3278 * socket request in general. 3279 */ 3280 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT); 3281 error = EPROTONOSUPPORT; 3282 SCTP_TCB_UNLOCK(stcb); 3283 break; 3284 } 3285 if (stcb->asoc.stream_reset_outstanding) { 3286 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 3287 error = EALREADY; 3288 SCTP_TCB_UNLOCK(stcb); 3289 break; 3290 } 3291 if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) { 3292 send_in = 1; 3293 } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) { 3294 send_out = 1; 3295 } else if (strrst->strrst_flags == SCTP_RESET_BOTH) { 3296 send_in = 1; 3297 send_out = 1; 3298 } else if (strrst->strrst_flags == SCTP_RESET_TSN) { 3299 send_tsn = 1; 3300 } else if (strrst->strrst_flags == SCTP_RESET_ADD_STREAMS) { 3301 if (send_tsn || 3302 send_in || 3303 send_out) { 3304 /* We can't do that and add streams */ 3305 error = EINVAL; 3306 goto skip_stuff; 3307 } 3308 if (stcb->asoc.stream_reset_outstanding) { 3309 error = EBUSY; 3310 goto skip_stuff; 3311 } 3312 addstream = 1; 3313 /* We allocate here */ 3314 addstrmcnt = strrst->strrst_num_streams; 3315 if ((int)(addstrmcnt + stcb->asoc.streamoutcnt) > 0xffff) { 3316 /* You can't have more than 64k */ 3317 error = EINVAL; 3318 goto skip_stuff; 3319 } 3320 if ((stcb->asoc.strm_realoutsize - stcb->asoc.streamoutcnt) < addstrmcnt) { 3321 /* Need to allocate more */ 3322 struct sctp_stream_out *oldstream; 3323 struct sctp_stream_queue_pending *sp; 3324 int removed; 3325 3326 oldstream = stcb->asoc.strmout; 3327 /* get some more */ 3328 SCTP_MALLOC(stcb->asoc.strmout, struct sctp_stream_out *, 3329 ((stcb->asoc.streamoutcnt + addstrmcnt) * sizeof(struct sctp_stream_out)), 3330 SCTP_M_STRMO); 3331 if (stcb->asoc.strmout == NULL) { 3332 stcb->asoc.strmout = oldstream; 3333 error = ENOMEM; 3334 goto skip_stuff; 3335 } 3336 /* 3337 * Ok now we proceed with copying 3338 * the old out stuff and 3339 * initializing the new stuff. 3340 */ 3341 SCTP_TCB_SEND_LOCK(stcb); 3342 for (i = 0; i < stcb->asoc.streamoutcnt; i++) { 3343 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); 3344 stcb->asoc.strmout[i].next_sequence_sent = oldstream[i].next_sequence_sent; 3345 stcb->asoc.strmout[i].last_msg_incomplete = oldstream[i].last_msg_incomplete; 3346 stcb->asoc.strmout[i].stream_no = i; 3347 if (oldstream[i].next_spoke.tqe_next) { 3348 sctp_remove_from_wheel(stcb, &stcb->asoc, &oldstream[i], 1); 3349 stcb->asoc.strmout[i].next_spoke.tqe_next = NULL; 3350 stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL; 3351 removed = 1; 3352 } else { 3353 /* not on out wheel */ 3354 stcb->asoc.strmout[i].next_spoke.tqe_next = NULL; 3355 stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL; 3356 removed = 0; 3357 } 3358 /* 3359 * now anything on those 3360 * queues? 3361 */ 3362 while (TAILQ_EMPTY(&oldstream[i].outqueue) == 0) { 3363 sp = TAILQ_FIRST(&oldstream[i].outqueue); 3364 TAILQ_REMOVE(&oldstream[i].outqueue, sp, next); 3365 TAILQ_INSERT_TAIL(&stcb->asoc.strmout[i].outqueue, sp, next); 3366 } 3367 /* Did we disrupt the wheel? */ 3368 if (removed) { 3369 sctp_insert_on_wheel(stcb, 3370 &stcb->asoc, 3371 &stcb->asoc.strmout[i], 3372 1); 3373 } 3374 /* 3375 * Now move assoc pointers 3376 * too 3377 */ 3378 if (stcb->asoc.last_out_stream == &oldstream[i]) { 3379 stcb->asoc.last_out_stream = &stcb->asoc.strmout[i]; 3380 } 3381 if (stcb->asoc.locked_on_sending == &oldstream[i]) { 3382 stcb->asoc.locked_on_sending = &stcb->asoc.strmout[i]; 3383 } 3384 } 3385 /* now the new streams */ 3386 for (i = stcb->asoc.streamoutcnt; i < (stcb->asoc.streamoutcnt + addstrmcnt); i++) { 3387 stcb->asoc.strmout[i].next_sequence_sent = 0x0; 3388 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); 3389 stcb->asoc.strmout[i].stream_no = i; 3390 stcb->asoc.strmout[i].last_msg_incomplete = 0; 3391 stcb->asoc.strmout[i].next_spoke.tqe_next = NULL; 3392 stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL; 3393 } 3394 stcb->asoc.strm_realoutsize = stcb->asoc.streamoutcnt + addstrmcnt; 3395 SCTP_FREE(oldstream, SCTP_M_STRMO); 3396 } 3397 SCTP_TCB_SEND_UNLOCK(stcb); 3398 goto skip_stuff; 3399 } else { 3400 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3401 error = EINVAL; 3402 SCTP_TCB_UNLOCK(stcb); 3403 break; 3404 } 3405 for (i = 0; i < strrst->strrst_num_streams; i++) { 3406 if ((send_in) && 3407 3408 (strrst->strrst_list[i] > stcb->asoc.streamincnt)) { 3409 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3410 error = EINVAL; 3411 goto get_out; 3412 } 3413 if ((send_out) && 3414 (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) { 3415 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3416 error = EINVAL; 3417 goto get_out; 3418 } 3419 } 3420 skip_stuff: 3421 if (error) { 3422 get_out: 3423 SCTP_TCB_UNLOCK(stcb); 3424 break; 3425 } 3426 error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams, 3427 strrst->strrst_list, 3428 send_out, (stcb->asoc.str_reset_seq_in - 3), 3429 send_in, send_tsn, addstream, addstrmcnt); 3430 3431 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED); 3432 SCTP_TCB_UNLOCK(stcb); 3433 } 3434 break; 3435 3436 case SCTP_CONNECT_X: 3437 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 3438 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3439 error = EINVAL; 3440 break; 3441 } 3442 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0); 3443 break; 3444 3445 case SCTP_CONNECT_X_DELAYED: 3446 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 3447 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3448 error = EINVAL; 3449 break; 3450 } 3451 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1); 3452 break; 3453 3454 case SCTP_CONNECT_X_COMPLETE: 3455 { 3456 struct sockaddr *sa; 3457 struct sctp_nets *net; 3458 3459 /* FIXME MT: check correct? */ 3460 SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize); 3461 3462 /* find tcb */ 3463 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 3464 SCTP_INP_RLOCK(inp); 3465 stcb = LIST_FIRST(&inp->sctp_asoc_list); 3466 if (stcb) { 3467 SCTP_TCB_LOCK(stcb); 3468 net = sctp_findnet(stcb, sa); 3469 } 3470 SCTP_INP_RUNLOCK(inp); 3471 } else { 3472 /* 3473 * We increment here since 3474 * sctp_findassociation_ep_addr() wil do a 3475 * decrement if it finds the stcb as long as 3476 * the locked tcb (last argument) is NOT a 3477 * TCB.. aka NULL. 3478 */ 3479 SCTP_INP_INCR_REF(inp); 3480 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL); 3481 if (stcb == NULL) { 3482 SCTP_INP_DECR_REF(inp); 3483 } 3484 } 3485 3486 if (stcb == NULL) { 3487 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 3488 error = ENOENT; 3489 break; 3490 } 3491 if (stcb->asoc.delayed_connection == 1) { 3492 stcb->asoc.delayed_connection = 0; 3493 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 3494 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb, 3495 stcb->asoc.primary_destination, 3496 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9); 3497 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 3498 } else { 3499 /* 3500 * already expired or did not use delayed 3501 * connectx 3502 */ 3503 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 3504 error = EALREADY; 3505 } 3506 SCTP_TCB_UNLOCK(stcb); 3507 } 3508 break; 3509 case SCTP_MAX_BURST: 3510 { 3511 uint8_t *burst; 3512 3513 SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize); 3514 3515 SCTP_INP_WLOCK(inp); 3516 if (*burst) { 3517 inp->sctp_ep.max_burst = *burst; 3518 } 3519 SCTP_INP_WUNLOCK(inp); 3520 } 3521 break; 3522 case SCTP_MAXSEG: 3523 { 3524 struct sctp_assoc_value *av; 3525 int ovh; 3526 3527 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3528 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3529 3530 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3531 ovh = SCTP_MED_OVERHEAD; 3532 } else { 3533 ovh = SCTP_MED_V4_OVERHEAD; 3534 } 3535 if (stcb) { 3536 if (av->assoc_value) { 3537 stcb->asoc.sctp_frag_point = (av->assoc_value + ovh); 3538 } else { 3539 stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3540 } 3541 SCTP_TCB_UNLOCK(stcb); 3542 } else { 3543 SCTP_INP_WLOCK(inp); 3544 /* 3545 * FIXME MT: I think this is not in tune 3546 * with the API ID 3547 */ 3548 if (av->assoc_value) { 3549 inp->sctp_frag_point = (av->assoc_value + ovh); 3550 } else { 3551 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3552 } 3553 SCTP_INP_WUNLOCK(inp); 3554 } 3555 } 3556 break; 3557 case SCTP_EVENTS: 3558 { 3559 struct sctp_event_subscribe *events; 3560 3561 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize); 3562 3563 SCTP_INP_WLOCK(inp); 3564 if (events->sctp_data_io_event) { 3565 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3566 } else { 3567 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3568 } 3569 3570 if (events->sctp_association_event) { 3571 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3572 } else { 3573 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3574 } 3575 3576 if (events->sctp_address_event) { 3577 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3578 } else { 3579 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3580 } 3581 3582 if (events->sctp_send_failure_event) { 3583 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3584 } else { 3585 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3586 } 3587 3588 if (events->sctp_peer_error_event) { 3589 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3590 } else { 3591 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3592 } 3593 3594 if (events->sctp_shutdown_event) { 3595 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3596 } else { 3597 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3598 } 3599 3600 if (events->sctp_partial_delivery_event) { 3601 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3602 } else { 3603 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3604 } 3605 3606 if (events->sctp_adaptation_layer_event) { 3607 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3608 } else { 3609 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3610 } 3611 3612 if (events->sctp_authentication_event) { 3613 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3614 } else { 3615 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3616 } 3617 3618 if (events->sctp_sender_dry_event) { 3619 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT); 3620 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3621 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 3622 stcb = LIST_FIRST(&inp->sctp_asoc_list); 3623 if (stcb) { 3624 SCTP_TCB_LOCK(stcb); 3625 } 3626 if (stcb && 3627 TAILQ_EMPTY(&stcb->asoc.send_queue) && 3628 TAILQ_EMPTY(&stcb->asoc.sent_queue) && 3629 (stcb->asoc.stream_queue_cnt == 0)) { 3630 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED); 3631 } 3632 if (stcb) { 3633 SCTP_TCB_UNLOCK(stcb); 3634 } 3635 } 3636 } else { 3637 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT); 3638 } 3639 3640 if (events->sctp_stream_reset_event) { 3641 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3642 } else { 3643 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3644 } 3645 SCTP_INP_WUNLOCK(inp); 3646 } 3647 break; 3648 3649 case SCTP_ADAPTATION_LAYER: 3650 { 3651 struct sctp_setadaptation *adap_bits; 3652 3653 SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize); 3654 SCTP_INP_WLOCK(inp); 3655 inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind; 3656 SCTP_INP_WUNLOCK(inp); 3657 } 3658 break; 3659#ifdef SCTP_DEBUG 3660 case SCTP_SET_INITIAL_DBG_SEQ: 3661 { 3662 uint32_t *vvv; 3663 3664 SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize); 3665 SCTP_INP_WLOCK(inp); 3666 inp->sctp_ep.initial_sequence_debug = *vvv; 3667 SCTP_INP_WUNLOCK(inp); 3668 } 3669 break; 3670#endif 3671 case SCTP_DEFAULT_SEND_PARAM: 3672 { 3673 struct sctp_sndrcvinfo *s_info; 3674 3675 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize); 3676 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 3677 3678 if (stcb) { 3679 if (s_info->sinfo_stream <= stcb->asoc.streamoutcnt) { 3680 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send))); 3681 } else { 3682 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3683 error = EINVAL; 3684 } 3685 SCTP_TCB_UNLOCK(stcb); 3686 } else { 3687 SCTP_INP_WLOCK(inp); 3688 memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send))); 3689 SCTP_INP_WUNLOCK(inp); 3690 } 3691 } 3692 break; 3693 case SCTP_PEER_ADDR_PARAMS: 3694 /* Applys to the specific association */ 3695 { 3696 struct sctp_paddrparams *paddrp; 3697 struct sctp_nets *net; 3698 3699 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize); 3700 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 3701 net = NULL; 3702 if (stcb) { 3703 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 3704 } else { 3705 /* 3706 * We increment here since 3707 * sctp_findassociation_ep_addr() wil do a 3708 * decrement if it finds the stcb as long as 3709 * the locked tcb (last argument) is NOT a 3710 * TCB.. aka NULL. 3711 */ 3712 SCTP_INP_INCR_REF(inp); 3713 stcb = sctp_findassociation_ep_addr(&inp, 3714 (struct sockaddr *)&paddrp->spp_address, 3715 &net, NULL, NULL); 3716 if (stcb == NULL) { 3717 SCTP_INP_DECR_REF(inp); 3718 } 3719 } 3720 if (stcb && (net == NULL)) { 3721 struct sockaddr *sa; 3722 3723 sa = (struct sockaddr *)&paddrp->spp_address; 3724 if (sa->sa_family == AF_INET) { 3725 struct sockaddr_in *sin; 3726 3727 sin = (struct sockaddr_in *)sa; 3728 if (sin->sin_addr.s_addr) { 3729 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3730 SCTP_TCB_UNLOCK(stcb); 3731 error = EINVAL; 3732 break; 3733 } 3734 } else if (sa->sa_family == AF_INET6) { 3735 struct sockaddr_in6 *sin6; 3736 3737 sin6 = (struct sockaddr_in6 *)sa; 3738 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 3739 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3740 SCTP_TCB_UNLOCK(stcb); 3741 error = EINVAL; 3742 break; 3743 } 3744 } else { 3745 error = EAFNOSUPPORT; 3746 SCTP_TCB_UNLOCK(stcb); 3747 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 3748 break; 3749 } 3750 } 3751 /* sanity checks */ 3752 if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) { 3753 if (stcb) 3754 SCTP_TCB_UNLOCK(stcb); 3755 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3756 return (EINVAL); 3757 } 3758 if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) { 3759 if (stcb) 3760 SCTP_TCB_UNLOCK(stcb); 3761 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3762 return (EINVAL); 3763 } 3764 if (stcb) { 3765 /************************TCB SPECIFIC SET ******************/ 3766 /* 3767 * do we change the timer for HB, we run 3768 * only one? 3769 */ 3770 int ovh = 0; 3771 3772 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3773 ovh = SCTP_MED_OVERHEAD; 3774 } else { 3775 ovh = SCTP_MED_V4_OVERHEAD; 3776 } 3777 3778 if (paddrp->spp_hbinterval) 3779 stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval; 3780 else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 3781 stcb->asoc.heart_beat_delay = 0; 3782 3783 /* network sets ? */ 3784 if (net) { 3785 /************************NET SPECIFIC SET ******************/ 3786 if (paddrp->spp_flags & SPP_HB_DEMAND) { 3787 /* on demand HB */ 3788 if (sctp_send_hb(stcb, 1, net) < 0) { 3789 /* asoc destroyed */ 3790 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3791 error = EINVAL; 3792 break; 3793 } 3794 } 3795 if (paddrp->spp_flags & SPP_HB_DISABLE) { 3796 net->dest_state |= SCTP_ADDR_NOHB; 3797 } 3798 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3799 net->dest_state &= ~SCTP_ADDR_NOHB; 3800 } 3801 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3802 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3803 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3804 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3805 } 3806 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3807 net->mtu = paddrp->spp_pathmtu + ovh; 3808 if (net->mtu < stcb->asoc.smallest_mtu) { 3809#ifdef SCTP_PRINT_FOR_B_AND_M 3810 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n", 3811 net->mtu); 3812#endif 3813 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3814 } 3815 } 3816 } 3817 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3818 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3819 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3820 } 3821 } 3822 if (paddrp->spp_pathmaxrxt) 3823 net->failure_threshold = paddrp->spp_pathmaxrxt; 3824#ifdef INET 3825 if (paddrp->spp_flags & SPP_IPV4_TOS) { 3826 if (net->ro._l_addr.sin.sin_family == AF_INET) { 3827 net->tos_flowlabel = paddrp->spp_ipv4_tos & 0x000000fc; 3828 } 3829 } 3830#endif 3831#ifdef INET6 3832 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) { 3833 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 3834 net->tos_flowlabel = paddrp->spp_ipv6_flowlabel; 3835 } 3836 } 3837#endif 3838 } else { 3839 /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/ 3840 if (paddrp->spp_pathmaxrxt) 3841 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt; 3842 3843 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3844 /* Turn back on the timer */ 3845 stcb->asoc.hb_is_disabled = 0; 3846 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 3847 } 3848 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3849 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3850 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3851 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3852 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3853 } 3854 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3855 net->mtu = paddrp->spp_pathmtu + ovh; 3856 if (net->mtu < stcb->asoc.smallest_mtu) { 3857#ifdef SCTP_PRINT_FOR_B_AND_M 3858 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n", 3859 net->mtu); 3860#endif 3861 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3862 } 3863 } 3864 } 3865 } 3866 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3867 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3868 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3869 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3870 } 3871 } 3872 } 3873 if (paddrp->spp_flags & SPP_HB_DISABLE) { 3874 int cnt_of_unconf = 0; 3875 struct sctp_nets *lnet; 3876 3877 stcb->asoc.hb_is_disabled = 1; 3878 TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) { 3879 if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) { 3880 cnt_of_unconf++; 3881 } 3882 } 3883 /* 3884 * stop the timer ONLY if we 3885 * have no unconfirmed 3886 * addresses 3887 */ 3888 if (cnt_of_unconf == 0) { 3889 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3890 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, 3891 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11); 3892 } 3893 } 3894 } 3895 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3896 /* start up the timer. */ 3897 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3898 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 3899 } 3900 } 3901#ifdef INET 3902 if (paddrp->spp_flags & SPP_IPV4_TOS) 3903 stcb->asoc.default_tos = paddrp->spp_ipv4_tos & 0x000000fc; 3904#endif 3905#ifdef INET6 3906 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) 3907 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel; 3908#endif 3909 3910 } 3911 SCTP_TCB_UNLOCK(stcb); 3912 } else { 3913 /************************NO TCB, SET TO default stuff ******************/ 3914 SCTP_INP_WLOCK(inp); 3915 /* 3916 * For the TOS/FLOWLABEL stuff you set it 3917 * with the options on the socket 3918 */ 3919 if (paddrp->spp_pathmaxrxt) { 3920 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt; 3921 } 3922 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 3923 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0; 3924 else if (paddrp->spp_hbinterval) { 3925 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL) 3926 paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL; 3927 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval); 3928 } 3929 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3930 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 3931 3932 } else if (paddrp->spp_flags & SPP_HB_DISABLE) { 3933 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 3934 } 3935 SCTP_INP_WUNLOCK(inp); 3936 } 3937 } 3938 break; 3939 case SCTP_RTOINFO: 3940 { 3941 struct sctp_rtoinfo *srto; 3942 uint32_t new_init, new_min, new_max; 3943 3944 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize); 3945 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 3946 3947 if (stcb) { 3948 if (srto->srto_initial) 3949 new_init = srto->srto_initial; 3950 else 3951 new_init = stcb->asoc.initial_rto; 3952 if (srto->srto_max) 3953 new_max = srto->srto_max; 3954 else 3955 new_max = stcb->asoc.maxrto; 3956 if (srto->srto_min) 3957 new_min = srto->srto_min; 3958 else 3959 new_min = stcb->asoc.minrto; 3960 if ((new_min <= new_init) && (new_init <= new_max)) { 3961 stcb->asoc.initial_rto = new_init; 3962 stcb->asoc.maxrto = new_max; 3963 stcb->asoc.minrto = new_min; 3964 } else { 3965 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3966 error = EINVAL; 3967 } 3968 SCTP_TCB_UNLOCK(stcb); 3969 } else { 3970 SCTP_INP_WLOCK(inp); 3971 if (srto->srto_initial) 3972 new_init = srto->srto_initial; 3973 else 3974 new_init = inp->sctp_ep.initial_rto; 3975 if (srto->srto_max) 3976 new_max = srto->srto_max; 3977 else 3978 new_max = inp->sctp_ep.sctp_maxrto; 3979 if (srto->srto_min) 3980 new_min = srto->srto_min; 3981 else 3982 new_min = inp->sctp_ep.sctp_minrto; 3983 if ((new_min <= new_init) && (new_init <= new_max)) { 3984 inp->sctp_ep.initial_rto = new_init; 3985 inp->sctp_ep.sctp_maxrto = new_max; 3986 inp->sctp_ep.sctp_minrto = new_min; 3987 } else { 3988 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3989 error = EINVAL; 3990 } 3991 SCTP_INP_WUNLOCK(inp); 3992 } 3993 } 3994 break; 3995 case SCTP_ASSOCINFO: 3996 { 3997 struct sctp_assocparams *sasoc; 3998 3999 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize); 4000 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 4001 if (sasoc->sasoc_cookie_life) { 4002 /* boundary check the cookie life */ 4003 if (sasoc->sasoc_cookie_life < 1000) 4004 sasoc->sasoc_cookie_life = 1000; 4005 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) { 4006 sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE; 4007 } 4008 } 4009 if (stcb) { 4010 if (sasoc->sasoc_asocmaxrxt) 4011 stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt; 4012 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 4013 sasoc->sasoc_peer_rwnd = 0; 4014 sasoc->sasoc_local_rwnd = 0; 4015 if (sasoc->sasoc_cookie_life) { 4016 stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 4017 } 4018 SCTP_TCB_UNLOCK(stcb); 4019 } else { 4020 SCTP_INP_WLOCK(inp); 4021 if (sasoc->sasoc_asocmaxrxt) 4022 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt; 4023 sasoc->sasoc_number_peer_destinations = 0; 4024 sasoc->sasoc_peer_rwnd = 0; 4025 sasoc->sasoc_local_rwnd = 0; 4026 if (sasoc->sasoc_cookie_life) { 4027 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 4028 } 4029 SCTP_INP_WUNLOCK(inp); 4030 } 4031 } 4032 break; 4033 case SCTP_INITMSG: 4034 { 4035 struct sctp_initmsg *sinit; 4036 4037 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize); 4038 SCTP_INP_WLOCK(inp); 4039 if (sinit->sinit_num_ostreams) 4040 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams; 4041 4042 if (sinit->sinit_max_instreams) 4043 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams; 4044 4045 if (sinit->sinit_max_attempts) 4046 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts; 4047 4048 if (sinit->sinit_max_init_timeo) 4049 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo; 4050 SCTP_INP_WUNLOCK(inp); 4051 } 4052 break; 4053 case SCTP_PRIMARY_ADDR: 4054 { 4055 struct sctp_setprim *spa; 4056 struct sctp_nets *net, *lnet; 4057 4058 SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize); 4059 SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id); 4060 4061 net = NULL; 4062 if (stcb) { 4063 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr); 4064 } else { 4065 /* 4066 * We increment here since 4067 * sctp_findassociation_ep_addr() wil do a 4068 * decrement if it finds the stcb as long as 4069 * the locked tcb (last argument) is NOT a 4070 * TCB.. aka NULL. 4071 */ 4072 SCTP_INP_INCR_REF(inp); 4073 stcb = sctp_findassociation_ep_addr(&inp, 4074 (struct sockaddr *)&spa->ssp_addr, 4075 &net, NULL, NULL); 4076 if (stcb == NULL) { 4077 SCTP_INP_DECR_REF(inp); 4078 } 4079 } 4080 4081 if ((stcb) && (net)) { 4082 if ((net != stcb->asoc.primary_destination) && 4083 (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) { 4084 /* Ok we need to set it */ 4085 lnet = stcb->asoc.primary_destination; 4086 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) { 4087 if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) { 4088 net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH; 4089 } 4090 net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY; 4091 } 4092 } 4093 } else { 4094 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4095 error = EINVAL; 4096 } 4097 if (stcb) { 4098 SCTP_TCB_UNLOCK(stcb); 4099 } 4100 } 4101 break; 4102 case SCTP_SET_DYNAMIC_PRIMARY: 4103 { 4104 union sctp_sockstore *ss; 4105 4106 error = priv_check(curthread, 4107 PRIV_NETINET_RESERVEDPORT); 4108 if (error) 4109 break; 4110 4111 SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize); 4112 /* SUPER USER CHECK? */ 4113 error = sctp_dynamic_set_primary(&ss->sa, vrf_id); 4114 } 4115 break; 4116 case SCTP_SET_PEER_PRIMARY_ADDR: 4117 { 4118 struct sctp_setpeerprim *sspp; 4119 4120 SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize); 4121 SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id); 4122 if (stcb != NULL) { 4123 struct sctp_ifa *ifa; 4124 4125 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr, 4126 stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED); 4127 if (ifa == NULL) { 4128 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4129 error = EINVAL; 4130 goto out_of_it; 4131 } 4132 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 4133 /* 4134 * Must validate the ifa found is in 4135 * our ep 4136 */ 4137 struct sctp_laddr *laddr; 4138 int found = 0; 4139 4140 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4141 if (laddr->ifa == NULL) { 4142 SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n", 4143 __FUNCTION__); 4144 continue; 4145 } 4146 if (laddr->ifa == ifa) { 4147 found = 1; 4148 break; 4149 } 4150 } 4151 if (!found) { 4152 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4153 error = EINVAL; 4154 goto out_of_it; 4155 } 4156 } 4157 if (sctp_set_primary_ip_address_sa(stcb, 4158 (struct sockaddr *)&sspp->sspp_addr) != 0) { 4159 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4160 error = EINVAL; 4161 } 4162 out_of_it: 4163 SCTP_TCB_UNLOCK(stcb); 4164 } else { 4165 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4166 error = EINVAL; 4167 } 4168 4169 } 4170 break; 4171 case SCTP_BINDX_ADD_ADDR: 4172 { 4173 struct sctp_getaddresses *addrs; 4174 size_t sz; 4175 struct thread *td; 4176 4177 td = (struct thread *)p; 4178 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, 4179 optsize); 4180 if (addrs->addr->sa_family == AF_INET) { 4181 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 4182 if (optsize < sz) { 4183 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4184 error = EINVAL; 4185 break; 4186 } 4187 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { 4188 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4189 break; 4190 } 4191#ifdef INET6 4192 } else if (addrs->addr->sa_family == AF_INET6) { 4193 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 4194 if (optsize < sz) { 4195 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4196 error = EINVAL; 4197 break; 4198 } 4199 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), 4200 (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { 4201 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4202 break; 4203 } 4204#endif 4205 } else { 4206 error = EAFNOSUPPORT; 4207 break; 4208 } 4209 sctp_bindx_add_address(so, inp, addrs->addr, 4210 addrs->sget_assoc_id, vrf_id, 4211 &error, p); 4212 } 4213 break; 4214 case SCTP_BINDX_REM_ADDR: 4215 { 4216 struct sctp_getaddresses *addrs; 4217 size_t sz; 4218 struct thread *td; 4219 4220 td = (struct thread *)p; 4221 4222 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize); 4223 if (addrs->addr->sa_family == AF_INET) { 4224 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 4225 if (optsize < sz) { 4226 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4227 error = EINVAL; 4228 break; 4229 } 4230 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { 4231 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4232 break; 4233 } 4234#ifdef INET6 4235 } else if (addrs->addr->sa_family == AF_INET6) { 4236 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 4237 if (optsize < sz) { 4238 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4239 error = EINVAL; 4240 break; 4241 } 4242 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), 4243 (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { 4244 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4245 break; 4246 } 4247#endif 4248 } else { 4249 error = EAFNOSUPPORT; 4250 break; 4251 } 4252 sctp_bindx_delete_address(so, inp, addrs->addr, 4253 addrs->sget_assoc_id, vrf_id, 4254 &error); 4255 } 4256 break; 4257 default: 4258 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 4259 error = ENOPROTOOPT; 4260 break; 4261 } /* end switch (opt) */ 4262 return (error); 4263} 4264 4265int 4266sctp_ctloutput(struct socket *so, struct sockopt *sopt) 4267{ 4268 void *optval = NULL; 4269 size_t optsize = 0; 4270 struct sctp_inpcb *inp; 4271 void *p; 4272 int error = 0; 4273 4274 inp = (struct sctp_inpcb *)so->so_pcb; 4275 if (inp == 0) { 4276 /* I made the same as TCP since we are not setup? */ 4277 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4278 return (ECONNRESET); 4279 } 4280 if (sopt->sopt_level != IPPROTO_SCTP) { 4281 /* wrong proto level... send back up to IP */ 4282#ifdef INET6 4283 if (INP_CHECK_SOCKAF(so, AF_INET6)) 4284 error = ip6_ctloutput(so, sopt); 4285 else 4286#endif /* INET6 */ 4287 error = ip_ctloutput(so, sopt); 4288 return (error); 4289 } 4290 optsize = sopt->sopt_valsize; 4291 if (optsize) { 4292 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT); 4293 if (optval == NULL) { 4294 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS); 4295 return (ENOBUFS); 4296 } 4297 error = sooptcopyin(sopt, optval, optsize, optsize); 4298 if (error) { 4299 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4300 goto out; 4301 } 4302 } 4303 p = (void *)sopt->sopt_td; 4304 if (sopt->sopt_dir == SOPT_SET) { 4305 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p); 4306 } else if (sopt->sopt_dir == SOPT_GET) { 4307 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p); 4308 } else { 4309 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4310 error = EINVAL; 4311 } 4312 if ((error == 0) && (optval != NULL)) { 4313 error = sooptcopyout(sopt, optval, optsize); 4314 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4315 } else if (optval != NULL) { 4316 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4317 } 4318out: 4319 return (error); 4320} 4321 4322 4323static int 4324sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p) 4325{ 4326 int error = 0; 4327 int create_lock_on = 0; 4328 uint32_t vrf_id; 4329 struct sctp_inpcb *inp; 4330 struct sctp_tcb *stcb = NULL; 4331 4332 inp = (struct sctp_inpcb *)so->so_pcb; 4333 if (inp == 0) { 4334 /* I made the same as TCP since we are not setup? */ 4335 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4336 return (ECONNRESET); 4337 } 4338 if (addr == NULL) { 4339 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4340 return EINVAL; 4341 } 4342#ifdef INET6 4343 if (addr->sa_family == AF_INET6) { 4344 struct sockaddr_in6 *sin6p; 4345 4346 if (addr->sa_len != sizeof(struct sockaddr_in6)) { 4347 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4348 return (EINVAL); 4349 } 4350 sin6p = (struct sockaddr_in6 *)addr; 4351 if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) { 4352 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 4353 return (error); 4354 } 4355 } else 4356#endif 4357 if (addr->sa_family == AF_INET) { 4358 struct sockaddr_in *sinp; 4359 4360 if (addr->sa_len != sizeof(struct sockaddr_in)) { 4361 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4362 return (EINVAL); 4363 } 4364 sinp = (struct sockaddr_in *)addr; 4365 if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) { 4366 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 4367 return (error); 4368 } 4369 } else { 4370 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT); 4371 return (EAFNOSUPPORT); 4372 } 4373 SCTP_INP_INCR_REF(inp); 4374 SCTP_ASOC_CREATE_LOCK(inp); 4375 create_lock_on = 1; 4376 4377 4378 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 4379 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 4380 /* Should I really unlock ? */ 4381 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 4382 error = EFAULT; 4383 goto out_now; 4384 } 4385#ifdef INET6 4386 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 4387 (addr->sa_family == AF_INET6)) { 4388 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4389 error = EINVAL; 4390 goto out_now; 4391 } 4392#endif /* INET6 */ 4393 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 4394 SCTP_PCB_FLAGS_UNBOUND) { 4395 /* Bind a ephemeral port */ 4396 error = sctp_inpcb_bind(so, NULL, NULL, p); 4397 if (error) { 4398 goto out_now; 4399 } 4400 } 4401 /* Now do we connect? */ 4402 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) && 4403 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) { 4404 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4405 error = EINVAL; 4406 goto out_now; 4407 } 4408 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 4409 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 4410 /* We are already connected AND the TCP model */ 4411 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 4412 error = EADDRINUSE; 4413 goto out_now; 4414 } 4415 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4416 SCTP_INP_RLOCK(inp); 4417 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4418 SCTP_INP_RUNLOCK(inp); 4419 } else { 4420 /* 4421 * We increment here since sctp_findassociation_ep_addr() 4422 * will do a decrement if it finds the stcb as long as the 4423 * locked tcb (last argument) is NOT a TCB.. aka NULL. 4424 */ 4425 SCTP_INP_INCR_REF(inp); 4426 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL); 4427 if (stcb == NULL) { 4428 SCTP_INP_DECR_REF(inp); 4429 } else { 4430 SCTP_TCB_UNLOCK(stcb); 4431 } 4432 } 4433 if (stcb != NULL) { 4434 /* Already have or am bring up an association */ 4435 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 4436 error = EALREADY; 4437 goto out_now; 4438 } 4439 vrf_id = inp->def_vrf_id; 4440 /* We are GOOD to go */ 4441 stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p); 4442 if (stcb == NULL) { 4443 /* Gak! no memory */ 4444 goto out_now; 4445 } 4446 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 4447 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 4448 /* Set the connected flag so we can queue data */ 4449 SOCKBUF_LOCK(&so->so_rcv); 4450 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; 4451 SOCKBUF_UNLOCK(&so->so_rcv); 4452 SOCKBUF_LOCK(&so->so_snd); 4453 so->so_snd.sb_state &= ~SBS_CANTSENDMORE; 4454 SOCKBUF_UNLOCK(&so->so_snd); 4455 SOCK_LOCK(so); 4456 so->so_state &= ~SS_ISDISCONNECTING; 4457 SOCK_UNLOCK(so); 4458 soisconnecting(so); 4459 } 4460 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 4461 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 4462 4463 /* initialize authentication parameters for the assoc */ 4464 sctp_initialize_auth_params(inp, stcb); 4465 4466 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 4467 SCTP_TCB_UNLOCK(stcb); 4468out_now: 4469 if (create_lock_on) { 4470 SCTP_ASOC_CREATE_UNLOCK(inp); 4471 } 4472 SCTP_INP_DECR_REF(inp); 4473 return error; 4474} 4475 4476int 4477sctp_listen(struct socket *so, int backlog, struct thread *p) 4478{ 4479 /* 4480 * Note this module depends on the protocol processing being called 4481 * AFTER any socket level flags and backlog are applied to the 4482 * socket. The traditional way that the socket flags are applied is 4483 * AFTER protocol processing. We have made a change to the 4484 * sys/kern/uipc_socket.c module to reverse this but this MUST be in 4485 * place if the socket API for SCTP is to work properly. 4486 */ 4487 4488 int error = 0; 4489 struct sctp_inpcb *inp; 4490 4491 inp = (struct sctp_inpcb *)so->so_pcb; 4492 if (inp == 0) { 4493 /* I made the same as TCP since we are not setup? */ 4494 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4495 return (ECONNRESET); 4496 } 4497 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) { 4498 /* See if we have a listener */ 4499 struct sctp_inpcb *tinp; 4500 union sctp_sockstore store, *sp; 4501 4502 sp = &store; 4503 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 4504 /* not bound all */ 4505 struct sctp_laddr *laddr; 4506 4507 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4508 memcpy(&store, &laddr->ifa->address, sizeof(store)); 4509 sp->sin.sin_port = inp->sctp_lport; 4510 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id); 4511 if (tinp && (tinp != inp) && 4512 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) && 4513 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 4514 (tinp->sctp_socket->so_qlimit)) { 4515 /* 4516 * we have a listener already and 4517 * its not this inp. 4518 */ 4519 SCTP_INP_DECR_REF(tinp); 4520 return (EADDRINUSE); 4521 } else if (tinp) { 4522 SCTP_INP_DECR_REF(tinp); 4523 } 4524 } 4525 } else { 4526 /* Setup a local addr bound all */ 4527 memset(&store, 0, sizeof(store)); 4528 store.sin.sin_port = inp->sctp_lport; 4529#ifdef INET6 4530 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 4531 store.sa.sa_family = AF_INET6; 4532 store.sa.sa_len = sizeof(struct sockaddr_in6); 4533 } 4534#endif 4535 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) { 4536 store.sa.sa_family = AF_INET; 4537 store.sa.sa_len = sizeof(struct sockaddr_in); 4538 } 4539 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id); 4540 if (tinp && (tinp != inp) && 4541 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) && 4542 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 4543 (tinp->sctp_socket->so_qlimit)) { 4544 /* 4545 * we have a listener already and its not 4546 * this inp. 4547 */ 4548 SCTP_INP_DECR_REF(tinp); 4549 return (EADDRINUSE); 4550 } else if (tinp) { 4551 SCTP_INP_DECR_REF(inp); 4552 } 4553 } 4554 } 4555 SCTP_INP_RLOCK(inp); 4556#ifdef SCTP_LOCK_LOGGING 4557 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) { 4558 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK); 4559 } 4560#endif 4561 SOCK_LOCK(so); 4562 error = solisten_proto_check(so); 4563 if (error) { 4564 SOCK_UNLOCK(so); 4565 SCTP_INP_RUNLOCK(inp); 4566 return (error); 4567 } 4568 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) && 4569 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 4570 /* 4571 * The unlucky case - We are in the tcp pool with this guy. 4572 * - Someone else is in the main inp slot. - We must move 4573 * this guy (the listener) to the main slot - We must then 4574 * move the guy that was listener to the TCP Pool. 4575 */ 4576 if (sctp_swap_inpcb_for_listen(inp)) { 4577 goto in_use; 4578 } 4579 } 4580 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 4581 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 4582 /* We are already connected AND the TCP model */ 4583in_use: 4584 SCTP_INP_RUNLOCK(inp); 4585 SOCK_UNLOCK(so); 4586 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 4587 return (EADDRINUSE); 4588 } 4589 SCTP_INP_RUNLOCK(inp); 4590 if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) { 4591 /* We must do a bind. */ 4592 SOCK_UNLOCK(so); 4593 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) { 4594 /* bind error, probably perm */ 4595 return (error); 4596 } 4597 SOCK_LOCK(so); 4598 } 4599 /* It appears for 7.0 and on, we must always call this. */ 4600 solisten_proto(so, backlog); 4601 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 4602 /* remove the ACCEPTCONN flag for one-to-many sockets */ 4603 so->so_options &= ~SO_ACCEPTCONN; 4604 } 4605 if (backlog == 0) { 4606 /* turning off listen */ 4607 so->so_options &= ~SO_ACCEPTCONN; 4608 } 4609 SOCK_UNLOCK(so); 4610 return (error); 4611} 4612 4613static int sctp_defered_wakeup_cnt = 0; 4614 4615int 4616sctp_accept(struct socket *so, struct sockaddr **addr) 4617{ 4618 struct sctp_tcb *stcb; 4619 struct sctp_inpcb *inp; 4620 union sctp_sockstore store; 4621 4622#ifdef INET6 4623 int error; 4624 4625#endif 4626 inp = (struct sctp_inpcb *)so->so_pcb; 4627 4628 if (inp == 0) { 4629 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4630 return (ECONNRESET); 4631 } 4632 SCTP_INP_RLOCK(inp); 4633 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 4634 SCTP_INP_RUNLOCK(inp); 4635 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 4636 return (EOPNOTSUPP); 4637 } 4638 if (so->so_state & SS_ISDISCONNECTED) { 4639 SCTP_INP_RUNLOCK(inp); 4640 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED); 4641 return (ECONNABORTED); 4642 } 4643 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4644 if (stcb == NULL) { 4645 SCTP_INP_RUNLOCK(inp); 4646 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4647 return (ECONNRESET); 4648 } 4649 SCTP_TCB_LOCK(stcb); 4650 SCTP_INP_RUNLOCK(inp); 4651 store = stcb->asoc.primary_destination->ro._l_addr; 4652 stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE; 4653 SCTP_TCB_UNLOCK(stcb); 4654 switch (store.sa.sa_family) { 4655 case AF_INET: 4656 { 4657 struct sockaddr_in *sin; 4658 4659 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4660 if (sin == NULL) 4661 return (ENOMEM); 4662 sin->sin_family = AF_INET; 4663 sin->sin_len = sizeof(*sin); 4664 sin->sin_port = ((struct sockaddr_in *)&store)->sin_port; 4665 sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr; 4666 *addr = (struct sockaddr *)sin; 4667 break; 4668 } 4669#ifdef INET6 4670 case AF_INET6: 4671 { 4672 struct sockaddr_in6 *sin6; 4673 4674 SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6); 4675 if (sin6 == NULL) 4676 return (ENOMEM); 4677 sin6->sin6_family = AF_INET6; 4678 sin6->sin6_len = sizeof(*sin6); 4679 sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port; 4680 4681 sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr; 4682 if ((error = sa6_recoverscope(sin6)) != 0) { 4683 SCTP_FREE_SONAME(sin6); 4684 return (error); 4685 } 4686 *addr = (struct sockaddr *)sin6; 4687 break; 4688 } 4689#endif 4690 default: 4691 /* TSNH */ 4692 break; 4693 } 4694 /* Wake any delayed sleep action */ 4695 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { 4696 SCTP_INP_WLOCK(inp); 4697 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE; 4698 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) { 4699 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT; 4700 SCTP_INP_WUNLOCK(inp); 4701 SOCKBUF_LOCK(&inp->sctp_socket->so_snd); 4702 if (sowriteable(inp->sctp_socket)) { 4703 sowwakeup_locked(inp->sctp_socket); 4704 } else { 4705 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd); 4706 } 4707 SCTP_INP_WLOCK(inp); 4708 } 4709 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) { 4710 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT; 4711 SCTP_INP_WUNLOCK(inp); 4712 SOCKBUF_LOCK(&inp->sctp_socket->so_rcv); 4713 if (soreadable(inp->sctp_socket)) { 4714 sctp_defered_wakeup_cnt++; 4715 sorwakeup_locked(inp->sctp_socket); 4716 } else { 4717 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv); 4718 } 4719 SCTP_INP_WLOCK(inp); 4720 } 4721 SCTP_INP_WUNLOCK(inp); 4722 } 4723 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 4724 SCTP_TCB_LOCK(stcb); 4725 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7); 4726 } 4727 return (0); 4728} 4729 4730int 4731sctp_ingetaddr(struct socket *so, struct sockaddr **addr) 4732{ 4733 struct sockaddr_in *sin; 4734 uint32_t vrf_id; 4735 struct sctp_inpcb *inp; 4736 struct sctp_ifa *sctp_ifa; 4737 4738 /* 4739 * Do the malloc first in case it blocks. 4740 */ 4741 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4742 if (sin == NULL) 4743 return (ENOMEM); 4744 sin->sin_family = AF_INET; 4745 sin->sin_len = sizeof(*sin); 4746 inp = (struct sctp_inpcb *)so->so_pcb; 4747 if (!inp) { 4748 SCTP_FREE_SONAME(sin); 4749 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4750 return ECONNRESET; 4751 } 4752 SCTP_INP_RLOCK(inp); 4753 sin->sin_port = inp->sctp_lport; 4754 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 4755 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4756 struct sctp_tcb *stcb; 4757 struct sockaddr_in *sin_a; 4758 struct sctp_nets *net; 4759 int fnd; 4760 4761 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4762 if (stcb == NULL) { 4763 goto notConn; 4764 } 4765 fnd = 0; 4766 sin_a = NULL; 4767 SCTP_TCB_LOCK(stcb); 4768 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4769 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 4770 if (sin_a == NULL) 4771 /* this will make coverity happy */ 4772 continue; 4773 4774 if (sin_a->sin_family == AF_INET) { 4775 fnd = 1; 4776 break; 4777 } 4778 } 4779 if ((!fnd) || (sin_a == NULL)) { 4780 /* punt */ 4781 SCTP_TCB_UNLOCK(stcb); 4782 goto notConn; 4783 } 4784 vrf_id = inp->def_vrf_id; 4785 sctp_ifa = sctp_source_address_selection(inp, 4786 stcb, 4787 (sctp_route_t *) & net->ro, 4788 net, 0, vrf_id); 4789 if (sctp_ifa) { 4790 sin->sin_addr = sctp_ifa->address.sin.sin_addr; 4791 sctp_free_ifa(sctp_ifa); 4792 } 4793 SCTP_TCB_UNLOCK(stcb); 4794 } else { 4795 /* For the bound all case you get back 0 */ 4796 notConn: 4797 sin->sin_addr.s_addr = 0; 4798 } 4799 4800 } else { 4801 /* Take the first IPv4 address in the list */ 4802 struct sctp_laddr *laddr; 4803 int fnd = 0; 4804 4805 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4806 if (laddr->ifa->address.sa.sa_family == AF_INET) { 4807 struct sockaddr_in *sin_a; 4808 4809 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa; 4810 sin->sin_addr = sin_a->sin_addr; 4811 fnd = 1; 4812 break; 4813 } 4814 } 4815 if (!fnd) { 4816 SCTP_FREE_SONAME(sin); 4817 SCTP_INP_RUNLOCK(inp); 4818 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4819 return ENOENT; 4820 } 4821 } 4822 SCTP_INP_RUNLOCK(inp); 4823 (*addr) = (struct sockaddr *)sin; 4824 return (0); 4825} 4826 4827int 4828sctp_peeraddr(struct socket *so, struct sockaddr **addr) 4829{ 4830 struct sockaddr_in *sin = (struct sockaddr_in *)*addr; 4831 int fnd; 4832 struct sockaddr_in *sin_a; 4833 struct sctp_inpcb *inp; 4834 struct sctp_tcb *stcb; 4835 struct sctp_nets *net; 4836 4837 /* Do the malloc first in case it blocks. */ 4838 inp = (struct sctp_inpcb *)so->so_pcb; 4839 if ((inp == NULL) || 4840 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { 4841 /* UDP type and listeners will drop out here */ 4842 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 4843 return (ENOTCONN); 4844 } 4845 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4846 if (sin == NULL) 4847 return (ENOMEM); 4848 sin->sin_family = AF_INET; 4849 sin->sin_len = sizeof(*sin); 4850 4851 /* We must recapture incase we blocked */ 4852 inp = (struct sctp_inpcb *)so->so_pcb; 4853 if (!inp) { 4854 SCTP_FREE_SONAME(sin); 4855 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4856 return ECONNRESET; 4857 } 4858 SCTP_INP_RLOCK(inp); 4859 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4860 if (stcb) { 4861 SCTP_TCB_LOCK(stcb); 4862 } 4863 SCTP_INP_RUNLOCK(inp); 4864 if (stcb == NULL) { 4865 SCTP_FREE_SONAME(sin); 4866 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4867 return ECONNRESET; 4868 } 4869 fnd = 0; 4870 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4871 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 4872 if (sin_a->sin_family == AF_INET) { 4873 fnd = 1; 4874 sin->sin_port = stcb->rport; 4875 sin->sin_addr = sin_a->sin_addr; 4876 break; 4877 } 4878 } 4879 SCTP_TCB_UNLOCK(stcb); 4880 if (!fnd) { 4881 /* No IPv4 address */ 4882 SCTP_FREE_SONAME(sin); 4883 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4884 return ENOENT; 4885 } 4886 (*addr) = (struct sockaddr *)sin; 4887 return (0); 4888} 4889 4890struct pr_usrreqs sctp_usrreqs = { 4891 .pru_abort = sctp_abort, 4892 .pru_accept = sctp_accept, 4893 .pru_attach = sctp_attach, 4894 .pru_bind = sctp_bind, 4895 .pru_connect = sctp_connect, 4896 .pru_control = in_control, 4897 .pru_close = sctp_close, 4898 .pru_detach = sctp_close, 4899 .pru_sopoll = sopoll_generic, 4900 .pru_flush = sctp_flush, 4901 .pru_disconnect = sctp_disconnect, 4902 .pru_listen = sctp_listen, 4903 .pru_peeraddr = sctp_peeraddr, 4904 .pru_send = sctp_sendm, 4905 .pru_shutdown = sctp_shutdown, 4906 .pru_sockaddr = sctp_ingetaddr, 4907 .pru_sosend = sctp_sosend, 4908 .pru_soreceive = sctp_soreceive 4909}; 4910