sctp_usrreq.c revision 171858
1/*- 2 * Copyright (c) 2001-2007, 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 171858 2007-08-16 01:51:22Z rrs $"); 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#include <netinet6/sctp6_var.h> 42#endif 43#include <netinet/sctp_sysctl.h> 44#include <netinet/sctp_output.h> 45#include <netinet/sctp_uio.h> 46#include <netinet/sctp_asconf.h> 47#include <netinet/sctputil.h> 48#include <netinet/sctp_indata.h> 49#include <netinet/sctp_timer.h> 50#include <netinet/sctp_auth.h> 51#include <netinet/sctp_bsd_addr.h> 52#include <netinet/sctp_cc_functions.h> 53 54 55 56 57void 58sctp_init(void) 59{ 60 /* Init the SCTP pcb in sctp_pcb.c */ 61 u_long sb_max_adj; 62 63 sctp_pcb_init(); 64 65 66 if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE) 67 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_sendspace = min((min(SB_MAX, 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_recvspace = sctp_sendspace; 81 82} 83 84 85 86/* 87 * cleanup of the sctppcbinfo structure. 88 * Assumes that the sctppcbinfo lock is held. 89 */ 90void 91sctp_pcbinfo_cleanup(void) 92{ 93 /* free the hash tables */ 94 if (sctppcbinfo.sctp_asochash != NULL) 95 SCTP_HASH_FREE(sctppcbinfo.sctp_asochash, sctppcbinfo.hashasocmark); 96 if (sctppcbinfo.sctp_ephash != NULL) 97 SCTP_HASH_FREE(sctppcbinfo.sctp_ephash, sctppcbinfo.hashmark); 98 if (sctppcbinfo.sctp_tcpephash != NULL) 99 SCTP_HASH_FREE(sctppcbinfo.sctp_tcpephash, sctppcbinfo.hashtcpmark); 100 if (sctppcbinfo.sctp_restarthash != NULL) 101 SCTP_HASH_FREE(sctppcbinfo.sctp_restarthash, sctppcbinfo.hashrestartmark); 102} 103 104 105static void 106sctp_pathmtu_adjustment(struct sctp_inpcb *inp, 107 struct sctp_tcb *stcb, 108 struct sctp_nets *net, 109 uint16_t nxtsz) 110{ 111 struct sctp_tmit_chunk *chk; 112 113 /* Adjust that too */ 114 stcb->asoc.smallest_mtu = nxtsz; 115 /* now off to subtract IP_DF flag if needed */ 116#ifdef SCTP_PRINT_FOR_B_AND_M 117 SCTP_PRINTF("sctp_pathmtu_adjust called inp:%p stcb:%p net:%p nxtsz:%d\n", 118 inp, stcb, net, nxtsz); 119#endif 120 TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) { 121 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) { 122 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 123 } 124 } 125 TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { 126 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) { 127 /* 128 * For this guy we also mark for immediate resend 129 * since we sent to big of chunk 130 */ 131 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 132 if (chk->sent != SCTP_DATAGRAM_RESEND) { 133 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt); 134 } 135 chk->sent = SCTP_DATAGRAM_RESEND; 136 chk->rec.data.doing_fast_retransmit = 0; 137 if (sctp_logging_level & SCTP_FLIGHT_LOGGING_ENABLE) { 138 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU, 139 chk->whoTo->flight_size, 140 chk->book_size, 141 (uintptr_t) chk->whoTo, 142 chk->rec.data.TSN_seq); 143 } 144 /* Clear any time so NO RTT is being done */ 145 chk->do_rtt = 0; 146 sctp_flight_size_decrease(chk); 147 sctp_total_flight_decrease(stcb, chk); 148 } 149 } 150} 151 152static void 153sctp_notify_mbuf(struct sctp_inpcb *inp, 154 struct sctp_tcb *stcb, 155 struct sctp_nets *net, 156 struct ip *ip, 157 struct sctphdr *sh) 158{ 159 struct icmp *icmph; 160 int totsz, tmr_stopped = 0; 161 uint16_t nxtsz; 162 163 /* protection */ 164 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 165 (ip == NULL) || (sh == NULL)) { 166 if (stcb != NULL) { 167 SCTP_TCB_UNLOCK(stcb); 168 } 169 return; 170 } 171 /* First job is to verify the vtag matches what I would send */ 172 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 173 SCTP_TCB_UNLOCK(stcb); 174 return; 175 } 176 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 177 sizeof(struct ip))); 178 if (icmph->icmp_type != ICMP_UNREACH) { 179 /* We only care about unreachable */ 180 SCTP_TCB_UNLOCK(stcb); 181 return; 182 } 183 if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) { 184 /* not a unreachable message due to frag. */ 185 SCTP_TCB_UNLOCK(stcb); 186 return; 187 } 188 totsz = ip->ip_len; 189 190 nxtsz = ntohs(icmph->icmp_seq); 191 if (nxtsz == 0) { 192 /* 193 * old type router that does not tell us what the next size 194 * mtu is. Rats we will have to guess (in a educated fashion 195 * of course) 196 */ 197 nxtsz = find_next_best_mtu(totsz); 198 } 199 /* Stop any PMTU timer */ 200 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 201 tmr_stopped = 1; 202 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 203 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1); 204 } 205 /* Adjust destination size limit */ 206 if (net->mtu > nxtsz) { 207 net->mtu = nxtsz; 208 } 209 /* now what about the ep? */ 210 if (stcb->asoc.smallest_mtu > nxtsz) { 211#ifdef SCTP_PRINT_FOR_B_AND_M 212 SCTP_PRINTF("notify_mbuf (ICMP) calls sctp_pathmtu_adjust mtu:%d\n", 213 nxtsz); 214#endif 215 sctp_pathmtu_adjustment(inp, stcb, net, nxtsz); 216 } 217 if (tmr_stopped) 218 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 219 220 SCTP_TCB_UNLOCK(stcb); 221} 222 223 224void 225sctp_notify(struct sctp_inpcb *inp, 226 int error, 227 struct sctphdr *sh, 228 struct sockaddr *to, 229 struct sctp_tcb *stcb, 230 struct sctp_nets *net) 231{ 232 /* protection */ 233 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 234 (sh == NULL) || (to == NULL)) { 235 return; 236 } 237 /* First job is to verify the vtag matches what I would send */ 238 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 239 return; 240 } 241 /* FIX ME FIX ME PROTOPT i.e. no SCTP should ALWAYS be an ABORT */ 242 243 if ((error == EHOSTUNREACH) || /* Host is not reachable */ 244 (error == EHOSTDOWN) || /* Host is down */ 245 (error == ECONNREFUSED) || /* Host refused the connection, (not 246 * an abort?) */ 247 (error == ENOPROTOOPT) /* SCTP is not present on host */ 248 ) { 249 /* 250 * Hmm reachablity problems we must examine closely. If its 251 * not reachable, we may have lost a network. Or if there is 252 * NO protocol at the other end named SCTP. well we consider 253 * it a OOTB abort. 254 */ 255 if ((error == EHOSTUNREACH) || (error == EHOSTDOWN)) { 256 if (net->dest_state & SCTP_ADDR_REACHABLE) { 257 /* Ok that destination is NOT reachable */ 258 SCTP_PRINTF("ICMP (thresh %d/%d) takes interface %p down\n", 259 net->error_count, 260 net->failure_threshold, 261 net); 262 263 net->dest_state &= ~SCTP_ADDR_REACHABLE; 264 net->dest_state |= SCTP_ADDR_NOT_REACHABLE; 265 /* 266 * JRS 5/14/07 - If a destination is 267 * unreachable, the PF bit is turned off. 268 * This allows an unambiguous use of the PF 269 * bit for destinations that are reachable 270 * but potentially failed. If the 271 * destination is set to the unreachable 272 * state, also set the destination to the PF 273 * state. 274 */ 275 /* 276 * Add debug message here if destination is 277 * not in PF state. 278 */ 279 /* Stop any running T3 timers here? */ 280 if (sctp_cmt_on_off && sctp_cmt_pf) { 281 net->dest_state &= ~SCTP_ADDR_PF; 282 SCTPDBG(SCTP_DEBUG_TIMER4, "Destination %p moved from PF to unreachable.\n", 283 net); 284 } 285 net->error_count = net->failure_threshold + 1; 286 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, 287 stcb, SCTP_FAILED_THRESHOLD, 288 (void *)net); 289 } 290 if (stcb) { 291 SCTP_TCB_UNLOCK(stcb); 292 } 293 } else { 294 /* 295 * Here the peer is either playing tricks on us, 296 * including an address that belongs to someone who 297 * does not support SCTP OR was a userland 298 * implementation that shutdown and now is dead. In 299 * either case treat it like a OOTB abort with no 300 * TCB 301 */ 302 sctp_abort_notification(stcb, SCTP_PEER_FAULTY); 303 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2); 304 /* no need to unlock here, since the TCB is gone */ 305 } 306 } else { 307 /* Send all others to the app */ 308 if (stcb) { 309 SCTP_TCB_UNLOCK(stcb); 310 } 311 if (inp->sctp_socket) { 312#ifdef SCTP_LOCK_LOGGING 313 if (sctp_logging_level & SCTP_LOCK_LOGGING_ENABLE) { 314 sctp_log_lock(inp, stcb, SCTP_LOG_LOCK_SOCK); 315 } 316#endif 317 SOCK_LOCK(inp->sctp_socket); 318 inp->sctp_socket->so_error = error; 319 sctp_sowwakeup(inp, inp->sctp_socket); 320 SOCK_UNLOCK(inp->sctp_socket); 321 } 322 } 323} 324 325void 326sctp_ctlinput(cmd, sa, vip) 327 int cmd; 328 struct sockaddr *sa; 329 void *vip; 330{ 331 struct ip *ip = vip; 332 struct sctphdr *sh; 333 uint32_t vrf_id; 334 335 /* FIX, for non-bsd is this right? */ 336 vrf_id = SCTP_DEFAULT_VRFID; 337 if (sa->sa_family != AF_INET || 338 ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) { 339 return; 340 } 341 if (PRC_IS_REDIRECT(cmd)) { 342 ip = 0; 343 } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) { 344 return; 345 } 346 if (ip) { 347 struct sctp_inpcb *inp = NULL; 348 struct sctp_tcb *stcb = NULL; 349 struct sctp_nets *net = NULL; 350 struct sockaddr_in to, from; 351 352 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2)); 353 bzero(&to, sizeof(to)); 354 bzero(&from, sizeof(from)); 355 from.sin_family = to.sin_family = AF_INET; 356 from.sin_len = to.sin_len = sizeof(to); 357 from.sin_port = sh->src_port; 358 from.sin_addr = ip->ip_src; 359 to.sin_port = sh->dest_port; 360 to.sin_addr = ip->ip_dst; 361 362 /* 363 * 'to' holds the dest of the packet that failed to be sent. 364 * 'from' holds our local endpoint address. Thus we reverse 365 * the to and the from in the lookup. 366 */ 367 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from, 368 (struct sockaddr *)&to, 369 &inp, &net, 1, vrf_id); 370 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) { 371 if (cmd != PRC_MSGSIZE) { 372 int cm; 373 374 if (cmd == PRC_HOSTDEAD) { 375 cm = EHOSTUNREACH; 376 } else { 377 cm = inetctlerrmap[cmd]; 378 } 379 sctp_notify(inp, cm, sh, 380 (struct sockaddr *)&to, stcb, 381 net); 382 } else { 383 /* handle possible ICMP size messages */ 384 sctp_notify_mbuf(inp, stcb, net, ip, sh); 385 } 386 } else { 387 if ((stcb == NULL) && (inp != NULL)) { 388 /* reduce ref-count */ 389 SCTP_INP_WLOCK(inp); 390 SCTP_INP_DECR_REF(inp); 391 SCTP_INP_WUNLOCK(inp); 392 } 393 } 394 } 395 return; 396} 397 398static int 399sctp_getcred(SYSCTL_HANDLER_ARGS) 400{ 401 struct xucred xuc; 402 struct sockaddr_in addrs[2]; 403 struct sctp_inpcb *inp; 404 struct sctp_nets *net; 405 struct sctp_tcb *stcb; 406 int error; 407 uint32_t vrf_id; 408 409 /* FIX, for non-bsd is this right? */ 410 vrf_id = SCTP_DEFAULT_VRFID; 411 412 error = priv_check(req->td, PRIV_NETINET_GETCRED); 413 414 if (error) 415 return (error); 416 417 error = SYSCTL_IN(req, addrs, sizeof(addrs)); 418 if (error) 419 return (error); 420 421 stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]), 422 sintosa(&addrs[1]), 423 &inp, &net, 1, vrf_id); 424 if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) { 425 if ((inp != NULL) && (stcb == NULL)) { 426 /* reduce ref-count */ 427 SCTP_INP_WLOCK(inp); 428 SCTP_INP_DECR_REF(inp); 429 goto cred_can_cont; 430 } 431 error = ENOENT; 432 goto out; 433 } 434 SCTP_TCB_UNLOCK(stcb); 435 /* 436 * We use the write lock here, only since in the error leg we need 437 * it. If we used RLOCK, then we would have to 438 * wlock/decr/unlock/rlock. Which in theory could create a hole. 439 * Better to use higher wlock. 440 */ 441 SCTP_INP_WLOCK(inp); 442cred_can_cont: 443 error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket); 444 if (error) { 445 SCTP_INP_WUNLOCK(inp); 446 goto out; 447 } 448 cru2x(inp->sctp_socket->so_cred, &xuc); 449 SCTP_INP_WUNLOCK(inp); 450 error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred)); 451out: 452 return (error); 453} 454 455SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW, 456 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection"); 457 458 459static void 460sctp_abort(struct socket *so) 461{ 462 struct sctp_inpcb *inp; 463 uint32_t flags; 464 465 inp = (struct sctp_inpcb *)so->so_pcb; 466 if (inp == 0) 467 return; 468 469sctp_must_try_again: 470 flags = inp->sctp_flags; 471#ifdef SCTP_LOG_CLOSING 472 sctp_log_closing(inp, NULL, 17); 473#endif 474 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 475 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 476#ifdef SCTP_LOG_CLOSING 477 sctp_log_closing(inp, NULL, 16); 478#endif 479 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 480 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 481 SOCK_LOCK(so); 482 SCTP_SB_CLEAR(so->so_snd); 483 /* 484 * same for the rcv ones, they are only here for the 485 * accounting/select. 486 */ 487 SCTP_SB_CLEAR(so->so_rcv); 488 489 /* Now null out the reference, we are completely detached. */ 490 so->so_pcb = NULL; 491 SOCK_UNLOCK(so); 492 } else { 493 flags = inp->sctp_flags; 494 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 495 goto sctp_must_try_again; 496 } 497 } 498 return; 499} 500 501static int 502sctp_attach(struct socket *so, int proto, struct thread *p) 503{ 504 struct sctp_inpcb *inp; 505 struct inpcb *ip_inp; 506 int error; 507 uint32_t vrf_id = SCTP_DEFAULT_VRFID; 508 509#ifdef IPSEC 510 uint32_t flags; 511 512#endif 513 inp = (struct sctp_inpcb *)so->so_pcb; 514 if (inp != 0) { 515 return EINVAL; 516 } 517 error = SCTP_SORESERVE(so, sctp_sendspace, sctp_recvspace); 518 if (error) { 519 return error; 520 } 521 error = sctp_inpcb_alloc(so, vrf_id); 522 if (error) { 523 return error; 524 } 525 inp = (struct sctp_inpcb *)so->so_pcb; 526 SCTP_INP_WLOCK(inp); 527 528 inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */ 529 ip_inp = &inp->ip_inp.inp; 530 ip_inp->inp_vflag |= INP_IPV4; 531 ip_inp->inp_ip_ttl = ip_defttl; 532 533#ifdef IPSEC 534 error = ipsec_init_policy(so, &ip_inp->inp_sp); 535#ifdef SCTP_LOG_CLOSING 536 sctp_log_closing(inp, NULL, 17); 537#endif 538 if (error != 0) { 539 flags = inp->sctp_flags; 540 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 541 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 542#ifdef SCTP_LOG_CLOSING 543 sctp_log_closing(inp, NULL, 15); 544#endif 545 SCTP_INP_WUNLOCK(inp); 546 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 547 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 548 } else { 549 SCTP_INP_WUNLOCK(inp); 550 } 551 return error; 552 } 553#endif /* IPSEC */ 554 SCTP_INP_WUNLOCK(inp); 555 return 0; 556} 557 558static int 559sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p) 560{ 561 struct sctp_inpcb *inp; 562 int error; 563 564#ifdef INET6 565 if (addr && addr->sa_family != AF_INET) 566 /* must be a v4 address! */ 567 return EINVAL; 568#endif /* INET6 */ 569 if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) { 570 return EINVAL; 571 } 572 inp = (struct sctp_inpcb *)so->so_pcb; 573 if (inp == 0) 574 return EINVAL; 575 576 error = sctp_inpcb_bind(so, addr, NULL, p); 577 return error; 578} 579 580static void 581sctp_close(struct socket *so) 582{ 583 struct sctp_inpcb *inp; 584 uint32_t flags; 585 586 inp = (struct sctp_inpcb *)so->so_pcb; 587 if (inp == 0) 588 return; 589 590 /* 591 * Inform all the lower layer assoc that we are done. 592 */ 593sctp_must_try_again: 594 flags = inp->sctp_flags; 595#ifdef SCTP_LOG_CLOSING 596 sctp_log_closing(inp, NULL, 17); 597#endif 598 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 599 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 600 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) || 601 (so->so_rcv.sb_cc > 0)) { 602#ifdef SCTP_LOG_CLOSING 603 sctp_log_closing(inp, NULL, 13); 604#endif 605 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 606 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 607 } else { 608#ifdef SCTP_LOG_CLOSING 609 sctp_log_closing(inp, NULL, 14); 610#endif 611 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE, 612 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 613 } 614 /* 615 * The socket is now detached, no matter what the state of 616 * the SCTP association. 617 */ 618 SOCK_LOCK(so); 619 SCTP_SB_CLEAR(so->so_snd); 620 /* 621 * same for the rcv ones, they are only here for the 622 * accounting/select. 623 */ 624 SCTP_SB_CLEAR(so->so_rcv); 625 626 /* Now null out the reference, we are completely detached. */ 627 so->so_pcb = NULL; 628 SOCK_UNLOCK(so); 629 } else { 630 flags = inp->sctp_flags; 631 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 632 goto sctp_must_try_again; 633 } 634 } 635 return; 636} 637 638 639int 640sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 641 struct mbuf *control, struct thread *p); 642 643 644int 645sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 646 struct mbuf *control, struct thread *p) 647{ 648 struct sctp_inpcb *inp; 649 int error; 650 651 inp = (struct sctp_inpcb *)so->so_pcb; 652 if (inp == 0) { 653 if (control) { 654 sctp_m_freem(control); 655 control = NULL; 656 } 657 sctp_m_freem(m); 658 return EINVAL; 659 } 660 /* Got to have an to address if we are NOT a connected socket */ 661 if ((addr == NULL) && 662 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) || 663 (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE)) 664 ) { 665 goto connected_type; 666 } else if (addr == NULL) { 667 error = EDESTADDRREQ; 668 sctp_m_freem(m); 669 if (control) { 670 sctp_m_freem(control); 671 control = NULL; 672 } 673 return (error); 674 } 675#ifdef INET6 676 if (addr->sa_family != AF_INET) { 677 /* must be a v4 address! */ 678 sctp_m_freem(m); 679 if (control) { 680 sctp_m_freem(control); 681 control = NULL; 682 } 683 error = EDESTADDRREQ; 684 return EINVAL; 685 } 686#endif /* INET6 */ 687connected_type: 688 /* now what about control */ 689 if (control) { 690 if (inp->control) { 691 SCTP_PRINTF("huh? control set?\n"); 692 sctp_m_freem(inp->control); 693 inp->control = NULL; 694 } 695 inp->control = control; 696 } 697 /* Place the data */ 698 if (inp->pkt) { 699 SCTP_BUF_NEXT(inp->pkt_last) = m; 700 inp->pkt_last = m; 701 } else { 702 inp->pkt_last = inp->pkt = m; 703 } 704 if ( 705 /* FreeBSD uses a flag passed */ 706 ((flags & PRUS_MORETOCOME) == 0) 707 ) { 708 /* 709 * note with the current version this code will only be used 710 * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for 711 * re-defining sosend to use the sctp_sosend. One can 712 * optionally switch back to this code (by changing back the 713 * definitions) but this is not advisable. This code is used 714 * by FreeBSD when sending a file with sendfile() though. 715 */ 716 int ret; 717 718 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags); 719 inp->pkt = NULL; 720 inp->control = NULL; 721 return (ret); 722 } else { 723 return (0); 724 } 725} 726 727static int 728sctp_disconnect(struct socket *so) 729{ 730 struct sctp_inpcb *inp; 731 732 inp = (struct sctp_inpcb *)so->so_pcb; 733 if (inp == NULL) { 734 return (ENOTCONN); 735 } 736 SCTP_INP_RLOCK(inp); 737 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 738 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 739 if (SCTP_LIST_EMPTY(&inp->sctp_asoc_list)) { 740 /* No connection */ 741 SCTP_INP_RUNLOCK(inp); 742 return (0); 743 } else { 744 struct sctp_association *asoc; 745 struct sctp_tcb *stcb; 746 747 stcb = LIST_FIRST(&inp->sctp_asoc_list); 748 if (stcb == NULL) { 749 SCTP_INP_RUNLOCK(inp); 750 return (EINVAL); 751 } 752 SCTP_TCB_LOCK(stcb); 753 asoc = &stcb->asoc; 754 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 755 /* We are about to be freed, out of here */ 756 SCTP_TCB_UNLOCK(stcb); 757 SCTP_INP_RUNLOCK(inp); 758 return (0); 759 } 760 if (((so->so_options & SO_LINGER) && 761 (so->so_linger == 0)) || 762 (so->so_rcv.sb_cc > 0)) { 763 if (SCTP_GET_STATE(asoc) != 764 SCTP_STATE_COOKIE_WAIT) { 765 /* Left with Data unread */ 766 struct mbuf *err; 767 768 err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA); 769 if (err) { 770 /* 771 * Fill in the user 772 * initiated abort 773 */ 774 struct sctp_paramhdr *ph; 775 776 ph = mtod(err, struct sctp_paramhdr *); 777 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr); 778 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT); 779 ph->param_length = htons(SCTP_BUF_LEN(err)); 780 } 781 sctp_send_abort_tcb(stcb, err); 782 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 783 } 784 SCTP_INP_RUNLOCK(inp); 785 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 786 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 787 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 788 } 789 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3); 790 /* No unlock tcb assoc is gone */ 791 return (0); 792 } 793 if (TAILQ_EMPTY(&asoc->send_queue) && 794 TAILQ_EMPTY(&asoc->sent_queue) && 795 (asoc->stream_queue_cnt == 0)) { 796 /* there is nothing queued to send, so done */ 797 if (asoc->locked_on_sending) { 798 goto abort_anyway; 799 } 800 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) && 801 (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) { 802 /* only send SHUTDOWN 1st time thru */ 803 sctp_stop_timers_for_shutdown(stcb); 804 sctp_send_shutdown(stcb, 805 stcb->asoc.primary_destination); 806 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3); 807 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 808 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 809 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 810 } 811 asoc->state = SCTP_STATE_SHUTDOWN_SENT; 812 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 813 stcb->sctp_ep, stcb, 814 asoc->primary_destination); 815 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 816 stcb->sctp_ep, stcb, 817 asoc->primary_destination); 818 } 819 } else { 820 /* 821 * we still got (or just got) data to send, 822 * so set SHUTDOWN_PENDING 823 */ 824 /* 825 * XXX sockets draft says that SCTP_EOF 826 * should be sent with no data. currently, 827 * we will allow user data to be sent first 828 * and move to SHUTDOWN-PENDING 829 */ 830 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 831 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 832 asoc->primary_destination); 833 if (asoc->locked_on_sending) { 834 /* Locked to send out the data */ 835 struct sctp_stream_queue_pending *sp; 836 837 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 838 if (sp == NULL) { 839 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 840 asoc->locked_on_sending->stream_no); 841 } else { 842 if ((sp->length == 0) && (sp->msg_is_complete == 0)) 843 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 844 } 845 } 846 if (TAILQ_EMPTY(&asoc->send_queue) && 847 TAILQ_EMPTY(&asoc->sent_queue) && 848 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 849 struct mbuf *op_err; 850 851 abort_anyway: 852 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 853 0, M_DONTWAIT, 1, MT_DATA); 854 if (op_err) { 855 /* 856 * Fill in the user 857 * initiated abort 858 */ 859 struct sctp_paramhdr *ph; 860 uint32_t *ippp; 861 862 SCTP_BUF_LEN(op_err) = 863 (sizeof(struct sctp_paramhdr) + sizeof(uint32_t)); 864 ph = mtod(op_err, 865 struct sctp_paramhdr *); 866 ph->param_type = htons( 867 SCTP_CAUSE_USER_INITIATED_ABT); 868 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 869 ippp = (uint32_t *) (ph + 1); 870 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4); 871 } 872 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4; 873 sctp_send_abort_tcb(stcb, op_err); 874 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 875 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 876 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 877 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 878 } 879 SCTP_INP_RUNLOCK(inp); 880 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5); 881 return (0); 882 } 883 } 884 SCTP_TCB_UNLOCK(stcb); 885 SCTP_INP_RUNLOCK(inp); 886 return (0); 887 } 888 /* not reached */ 889 } else { 890 /* UDP model does not support this */ 891 SCTP_INP_RUNLOCK(inp); 892 return EOPNOTSUPP; 893 } 894} 895 896int 897sctp_shutdown(struct socket *so) 898{ 899 struct sctp_inpcb *inp; 900 901 inp = (struct sctp_inpcb *)so->so_pcb; 902 if (inp == 0) { 903 return EINVAL; 904 } 905 SCTP_INP_RLOCK(inp); 906 /* For UDP model this is a invalid call */ 907 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 908 /* Restore the flags that the soshutdown took away. */ 909 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; 910 /* This proc will wakeup for read and do nothing (I hope) */ 911 SCTP_INP_RUNLOCK(inp); 912 return (EOPNOTSUPP); 913 } 914 /* 915 * Ok if we reach here its the TCP model and it is either a SHUT_WR 916 * or SHUT_RDWR. This means we put the shutdown flag against it. 917 */ 918 { 919 struct sctp_tcb *stcb; 920 struct sctp_association *asoc; 921 922 socantsendmore(so); 923 924 stcb = LIST_FIRST(&inp->sctp_asoc_list); 925 if (stcb == NULL) { 926 /* 927 * Ok we hit the case that the shutdown call was 928 * made after an abort or something. Nothing to do 929 * now. 930 */ 931 SCTP_INP_RUNLOCK(inp); 932 return (0); 933 } 934 SCTP_TCB_LOCK(stcb); 935 asoc = &stcb->asoc; 936 if (TAILQ_EMPTY(&asoc->send_queue) && 937 TAILQ_EMPTY(&asoc->sent_queue) && 938 (asoc->stream_queue_cnt == 0)) { 939 if (asoc->locked_on_sending) { 940 goto abort_anyway; 941 } 942 /* there is nothing queued to send, so I'm done... */ 943 if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) { 944 /* only send SHUTDOWN the first time through */ 945 sctp_stop_timers_for_shutdown(stcb); 946 sctp_send_shutdown(stcb, 947 stcb->asoc.primary_destination); 948 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3); 949 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 950 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 951 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 952 } 953 asoc->state = SCTP_STATE_SHUTDOWN_SENT; 954 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 955 stcb->sctp_ep, stcb, 956 asoc->primary_destination); 957 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 958 stcb->sctp_ep, stcb, 959 asoc->primary_destination); 960 } 961 } else { 962 /* 963 * we still got (or just got) data to send, so set 964 * SHUTDOWN_PENDING 965 */ 966 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 967 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 968 asoc->primary_destination); 969 970 if (asoc->locked_on_sending) { 971 /* Locked to send out the data */ 972 struct sctp_stream_queue_pending *sp; 973 974 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 975 if (sp == NULL) { 976 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 977 asoc->locked_on_sending->stream_no); 978 } else { 979 if ((sp->length == 0) && (sp->msg_is_complete == 0)) { 980 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 981 } 982 } 983 } 984 if (TAILQ_EMPTY(&asoc->send_queue) && 985 TAILQ_EMPTY(&asoc->sent_queue) && 986 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 987 struct mbuf *op_err; 988 989 abort_anyway: 990 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 991 0, M_DONTWAIT, 1, MT_DATA); 992 if (op_err) { 993 /* Fill in the user initiated abort */ 994 struct sctp_paramhdr *ph; 995 uint32_t *ippp; 996 997 SCTP_BUF_LEN(op_err) = 998 sizeof(struct sctp_paramhdr) + sizeof(uint32_t); 999 ph = mtod(op_err, 1000 struct sctp_paramhdr *); 1001 ph->param_type = htons( 1002 SCTP_CAUSE_USER_INITIATED_ABT); 1003 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 1004 ippp = (uint32_t *) (ph + 1); 1005 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1006 } 1007 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6; 1008 sctp_abort_an_association(stcb->sctp_ep, stcb, 1009 SCTP_RESPONSE_TO_USER_REQ, 1010 op_err); 1011 goto skip_unlock; 1012 } 1013 } 1014 SCTP_TCB_UNLOCK(stcb); 1015 } 1016skip_unlock: 1017 SCTP_INP_RUNLOCK(inp); 1018 return 0; 1019} 1020 1021/* 1022 * copies a "user" presentable address and removes embedded scope, etc. 1023 * returns 0 on success, 1 on error 1024 */ 1025static uint32_t 1026sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa) 1027{ 1028 struct sockaddr_in6 lsa6; 1029 1030 sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa, 1031 &lsa6); 1032 memcpy(ss, sa, sa->sa_len); 1033 return (0); 1034} 1035 1036 1037 1038static size_t 1039sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp, 1040 struct sctp_tcb *stcb, 1041 size_t limit, 1042 struct sockaddr_storage *sas, 1043 uint32_t vrf_id) 1044{ 1045 struct sctp_ifn *sctp_ifn; 1046 struct sctp_ifa *sctp_ifa; 1047 int loopback_scope, ipv4_local_scope, local_scope, site_scope; 1048 size_t actual; 1049 int ipv4_addr_legal, ipv6_addr_legal; 1050 struct sctp_vrf *vrf; 1051 1052 actual = 0; 1053 if (limit <= 0) 1054 return (actual); 1055 1056 if (stcb) { 1057 /* Turn on all the appropriate scope */ 1058 loopback_scope = stcb->asoc.loopback_scope; 1059 ipv4_local_scope = stcb->asoc.ipv4_local_scope; 1060 local_scope = stcb->asoc.local_scope; 1061 site_scope = stcb->asoc.site_scope; 1062 } else { 1063 /* Turn on ALL scope, since we look at the EP */ 1064 loopback_scope = ipv4_local_scope = local_scope = 1065 site_scope = 1; 1066 } 1067 ipv4_addr_legal = ipv6_addr_legal = 0; 1068 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1069 ipv6_addr_legal = 1; 1070 if (SCTP_IPV6_V6ONLY(inp) == 0) { 1071 ipv4_addr_legal = 1; 1072 } 1073 } else { 1074 ipv4_addr_legal = 1; 1075 } 1076 vrf = sctp_find_vrf(vrf_id); 1077 if (vrf == NULL) { 1078 return (0); 1079 } 1080 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1081 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1082 if ((loopback_scope == 0) && 1083 SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) { 1084 /* Skip loopback if loopback_scope not set */ 1085 continue; 1086 } 1087 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1088 if (stcb) { 1089 /* 1090 * For the BOUND-ALL case, the list 1091 * associated with a TCB is Always 1092 * considered a reverse list.. i.e. 1093 * it lists addresses that are NOT 1094 * part of the association. If this 1095 * is one of those we must skip it. 1096 */ 1097 if (sctp_is_addr_restricted(stcb, 1098 sctp_ifa)) { 1099 continue; 1100 } 1101 } 1102 if ((sctp_ifa->address.sa.sa_family == AF_INET) && 1103 (ipv4_addr_legal)) { 1104 struct sockaddr_in *sin; 1105 1106 sin = (struct sockaddr_in *)&sctp_ifa->address.sa; 1107 if (sin->sin_addr.s_addr == 0) { 1108 /* 1109 * we skip unspecifed 1110 * addresses 1111 */ 1112 continue; 1113 } 1114 if ((ipv4_local_scope == 0) && 1115 (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) { 1116 continue; 1117 } 1118 if (inp->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) { 1119 in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas); 1120 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1121 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6)); 1122 actual += sizeof(struct sockaddr_in6); 1123 } else { 1124 memcpy(sas, sin, sizeof(*sin)); 1125 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport; 1126 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin)); 1127 actual += sizeof(*sin); 1128 } 1129 if (actual >= limit) { 1130 return (actual); 1131 } 1132 } else if ((sctp_ifa->address.sa.sa_family == AF_INET6) && 1133 (ipv6_addr_legal)) { 1134 struct sockaddr_in6 *sin6; 1135 1136 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa; 1137 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 1138 /* 1139 * we skip unspecifed 1140 * addresses 1141 */ 1142 continue; 1143 } 1144 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 1145 if (local_scope == 0) 1146 continue; 1147 if (sin6->sin6_scope_id == 0) { 1148 if (sa6_recoverscope(sin6) != 0) 1149 /* 1150 * bad link 1151 * local 1152 * address 1153 */ 1154 continue; 1155 } 1156 } 1157 if ((site_scope == 0) && 1158 (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) { 1159 continue; 1160 } 1161 memcpy(sas, sin6, sizeof(*sin6)); 1162 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1163 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6)); 1164 actual += sizeof(*sin6); 1165 if (actual >= limit) { 1166 return (actual); 1167 } 1168 } 1169 } 1170 } 1171 } else { 1172 struct sctp_laddr *laddr; 1173 1174 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1175 if (stcb) { 1176 if (sctp_is_addr_restricted(stcb, laddr->ifa)) { 1177 continue; 1178 } 1179 } 1180 if (sctp_fill_user_address(sas, &laddr->ifa->address.sa)) 1181 continue; 1182 1183 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1184 sas = (struct sockaddr_storage *)((caddr_t)sas + 1185 laddr->ifa->address.sa.sa_len); 1186 actual += laddr->ifa->address.sa.sa_len; 1187 if (actual >= limit) { 1188 return (actual); 1189 } 1190 } 1191 } 1192 return (actual); 1193} 1194 1195static size_t 1196sctp_fill_up_addresses(struct sctp_inpcb *inp, 1197 struct sctp_tcb *stcb, 1198 size_t limit, 1199 struct sockaddr_storage *sas) 1200{ 1201 size_t size = 0; 1202 1203 /* fill up addresses for the endpoint's default vrf */ 1204 size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas, 1205 inp->def_vrf_id); 1206 return (size); 1207} 1208 1209static int 1210sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id) 1211{ 1212 int cnt = 0; 1213 struct sctp_vrf *vrf = NULL; 1214 1215 /* 1216 * In both sub-set bound an bound_all cases we return the MAXIMUM 1217 * number of addresses that you COULD get. In reality the sub-set 1218 * bound may have an exclusion list for a given TCB OR in the 1219 * bound-all case a TCB may NOT include the loopback or other 1220 * addresses as well. 1221 */ 1222 vrf = sctp_find_vrf(vrf_id); 1223 if (vrf == NULL) { 1224 return (0); 1225 } 1226 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1227 struct sctp_ifn *sctp_ifn; 1228 struct sctp_ifa *sctp_ifa; 1229 1230 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1231 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1232 /* Count them if they are the right type */ 1233 if (sctp_ifa->address.sa.sa_family == AF_INET) { 1234 if (inp->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) 1235 cnt += sizeof(struct sockaddr_in6); 1236 else 1237 cnt += sizeof(struct sockaddr_in); 1238 1239 } else if (sctp_ifa->address.sa.sa_family == AF_INET6) 1240 cnt += sizeof(struct sockaddr_in6); 1241 } 1242 } 1243 } else { 1244 struct sctp_laddr *laddr; 1245 1246 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1247 if (laddr->ifa->address.sa.sa_family == AF_INET) { 1248 if (inp->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) 1249 cnt += sizeof(struct sockaddr_in6); 1250 else 1251 cnt += sizeof(struct sockaddr_in); 1252 1253 } else if (laddr->ifa->address.sa.sa_family == AF_INET6) 1254 cnt += sizeof(struct sockaddr_in6); 1255 } 1256 } 1257 return (cnt); 1258} 1259 1260static int 1261sctp_count_max_addresses(struct sctp_inpcb *inp) 1262{ 1263 int cnt = 0; 1264 1265 /* count addresses for the endpoint's default VRF */ 1266 cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id); 1267 return (cnt); 1268} 1269 1270static int 1271sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval, 1272 size_t optsize, void *p, int delay) 1273{ 1274 int error = 0; 1275 int creat_lock_on = 0; 1276 struct sctp_tcb *stcb = NULL; 1277 struct sockaddr *sa; 1278 int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr; 1279 int added = 0; 1280 uint32_t vrf_id; 1281 int bad_addresses = 0; 1282 sctp_assoc_t *a_id; 1283 1284 SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n"); 1285 1286 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 1287 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 1288 /* We are already connected AND the TCP model */ 1289 return (EADDRINUSE); 1290 } 1291 if (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) { 1292 return (EINVAL); 1293 } 1294 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 1295 SCTP_INP_RLOCK(inp); 1296 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1297 SCTP_INP_RUNLOCK(inp); 1298 } 1299 if (stcb) { 1300 return (EALREADY); 1301 } 1302 SCTP_INP_INCR_REF(inp); 1303 SCTP_ASOC_CREATE_LOCK(inp); 1304 creat_lock_on = 1; 1305 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 1306 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 1307 error = EFAULT; 1308 goto out_now; 1309 } 1310 totaddrp = (int *)optval; 1311 totaddr = *totaddrp; 1312 sa = (struct sockaddr *)(totaddrp + 1); 1313 stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses); 1314 if ((stcb != NULL) || bad_addresses) { 1315 /* Already have or am bring up an association */ 1316 SCTP_ASOC_CREATE_UNLOCK(inp); 1317 creat_lock_on = 0; 1318 if (stcb) 1319 SCTP_TCB_UNLOCK(stcb); 1320 if (bad_addresses == 0) 1321 error = EALREADY; 1322 goto out_now; 1323 } 1324#ifdef INET6 1325 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 1326 (num_v6 > 0)) { 1327 error = EINVAL; 1328 goto out_now; 1329 } 1330 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && 1331 (num_v4 > 0)) { 1332 struct in6pcb *inp6; 1333 1334 inp6 = (struct in6pcb *)inp; 1335 if (SCTP_IPV6_V6ONLY(inp6)) { 1336 /* 1337 * if IPV6_V6ONLY flag, ignore connections destined 1338 * to a v4 addr or v4-mapped addr 1339 */ 1340 error = EINVAL; 1341 goto out_now; 1342 } 1343 } 1344#endif /* INET6 */ 1345 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 1346 SCTP_PCB_FLAGS_UNBOUND) { 1347 /* Bind a ephemeral port */ 1348 error = sctp_inpcb_bind(so, NULL, NULL, p); 1349 if (error) { 1350 goto out_now; 1351 } 1352 } 1353 /* FIX ME: do we want to pass in a vrf on the connect call? */ 1354 vrf_id = inp->def_vrf_id; 1355 1356 /* We are GOOD to go */ 1357 stcb = sctp_aloc_assoc(inp, sa, 1, &error, 0, vrf_id, 1358 (struct thread *)p 1359 ); 1360 if (stcb == NULL) { 1361 /* Gak! no memory */ 1362 goto out_now; 1363 } 1364 stcb->asoc.state = SCTP_STATE_COOKIE_WAIT; 1365 /* move to second address */ 1366 if (sa->sa_family == AF_INET) 1367 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in)); 1368 else 1369 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6)); 1370 1371 error = 0; 1372 added = sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error); 1373 /* Fill in the return id */ 1374 if (error) { 1375 sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12); 1376 goto out_now; 1377 } 1378 a_id = (sctp_assoc_t *) optval; 1379 *a_id = sctp_get_associd(stcb); 1380 1381 /* initialize authentication parameters for the assoc */ 1382 sctp_initialize_auth_params(inp, stcb); 1383 1384 if (delay) { 1385 /* doing delayed connection */ 1386 stcb->asoc.delayed_connection = 1; 1387 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination); 1388 } else { 1389 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 1390 sctp_send_initiate(inp, stcb); 1391 } 1392 SCTP_TCB_UNLOCK(stcb); 1393 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 1394 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 1395 /* Set the connected flag so we can queue data */ 1396 soisconnecting(so); 1397 } 1398out_now: 1399 if (creat_lock_on) { 1400 SCTP_ASOC_CREATE_UNLOCK(inp); 1401 } 1402 SCTP_INP_DECR_REF(inp); 1403 return error; 1404} 1405 1406#define SCTP_FIND_STCB(inp, stcb, assoc_id) { \ 1407 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\ 1408 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \ 1409 SCTP_INP_RLOCK(inp); \ 1410 stcb = LIST_FIRST(&inp->sctp_asoc_list); \ 1411 if (stcb) { \ 1412 SCTP_TCB_LOCK(stcb); \ 1413 } \ 1414 SCTP_INP_RUNLOCK(inp); \ 1415 } else if (assoc_id != 0) { \ 1416 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \ 1417 if (stcb == NULL) { \ 1418 error = ENOENT; \ 1419 break; \ 1420 } \ 1421 } else { \ 1422 stcb = NULL; \ 1423 } \ 1424 } 1425 1426 1427#define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\ 1428 if (size < sizeof(type)) { \ 1429 error = EINVAL; \ 1430 break; \ 1431 } else { \ 1432 destp = (type *)srcp; \ 1433 } \ 1434 } 1435 1436static int 1437sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize, 1438 void *p) 1439{ 1440 struct sctp_inpcb *inp; 1441 int error, val = 0; 1442 struct sctp_tcb *stcb = NULL; 1443 1444 if (optval == NULL) { 1445 return (EINVAL); 1446 } 1447 inp = (struct sctp_inpcb *)so->so_pcb; 1448 if (inp == 0) 1449 return EINVAL; 1450 error = 0; 1451 1452 switch (optname) { 1453 case SCTP_NODELAY: 1454 case SCTP_AUTOCLOSE: 1455 case SCTP_EXPLICIT_EOR: 1456 case SCTP_AUTO_ASCONF: 1457 case SCTP_DISABLE_FRAGMENTS: 1458 case SCTP_I_WANT_MAPPED_V4_ADDR: 1459 case SCTP_USE_EXT_RCVINFO: 1460 SCTP_INP_RLOCK(inp); 1461 switch (optname) { 1462 case SCTP_DISABLE_FRAGMENTS: 1463 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT); 1464 break; 1465 case SCTP_I_WANT_MAPPED_V4_ADDR: 1466 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4); 1467 break; 1468 case SCTP_AUTO_ASCONF: 1469 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF); 1470 break; 1471 case SCTP_EXPLICIT_EOR: 1472 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR); 1473 break; 1474 case SCTP_NODELAY: 1475 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY); 1476 break; 1477 case SCTP_USE_EXT_RCVINFO: 1478 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO); 1479 break; 1480 case SCTP_AUTOCLOSE: 1481 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE)) 1482 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time); 1483 else 1484 val = 0; 1485 break; 1486 1487 default: 1488 error = ENOPROTOOPT; 1489 } /* end switch (sopt->sopt_name) */ 1490 if (optname != SCTP_AUTOCLOSE) { 1491 /* make it an "on/off" value */ 1492 val = (val != 0); 1493 } 1494 if (*optsize < sizeof(val)) { 1495 error = EINVAL; 1496 } 1497 SCTP_INP_RUNLOCK(inp); 1498 if (error == 0) { 1499 /* return the option value */ 1500 *(int *)optval = val; 1501 *optsize = sizeof(val); 1502 } 1503 break; 1504 case SCTP_GET_PACKET_LOG: 1505 { 1506#ifdef SCTP_PACKET_LOGGING 1507 uint8_t *target; 1508 int ret; 1509 1510 SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize); 1511 ret = sctp_copy_out_packet_log(target, (int)*optsize); 1512 *optsize = ret; 1513#else 1514 error = EOPNOTSUPP; 1515#endif 1516 break; 1517 } 1518 case SCTP_PARTIAL_DELIVERY_POINT: 1519 { 1520 uint32_t *value; 1521 1522 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1523 *value = inp->partial_delivery_point; 1524 *optsize = sizeof(uint32_t); 1525 } 1526 break; 1527 case SCTP_FRAGMENT_INTERLEAVE: 1528 { 1529 uint32_t *value; 1530 1531 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1532 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) { 1533 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) { 1534 *value = SCTP_FRAG_LEVEL_2; 1535 } else { 1536 *value = SCTP_FRAG_LEVEL_1; 1537 } 1538 } else { 1539 *value = SCTP_FRAG_LEVEL_0; 1540 } 1541 *optsize = sizeof(uint32_t); 1542 } 1543 break; 1544 case SCTP_CMT_ON_OFF: 1545 { 1546 struct sctp_assoc_value *av; 1547 1548 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1549 if (sctp_cmt_on_off) { 1550 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1551 if (stcb) { 1552 av->assoc_value = stcb->asoc.sctp_cmt_on_off; 1553 SCTP_TCB_UNLOCK(stcb); 1554 1555 } else { 1556 error = ENOTCONN; 1557 } 1558 } else { 1559 error = ENOPROTOOPT; 1560 } 1561 *optsize = sizeof(*av); 1562 } 1563 break; 1564 /* JRS - Get socket option for pluggable congestion control */ 1565 case SCTP_PLUGGABLE_CC: 1566 { 1567 struct sctp_assoc_value *av; 1568 1569 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1570 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1571 if (stcb) { 1572 av->assoc_value = stcb->asoc.congestion_control_module; 1573 SCTP_TCB_UNLOCK(stcb); 1574 } else { 1575 av->assoc_value = inp->sctp_ep.sctp_default_cc_module; 1576 } 1577 *optsize = sizeof(*av); 1578 } 1579 break; 1580 case SCTP_GET_ADDR_LEN: 1581 { 1582 struct sctp_assoc_value *av; 1583 1584 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1585 error = EINVAL; 1586#ifdef INET 1587 if (av->assoc_value == AF_INET) { 1588 av->assoc_value = sizeof(struct sockaddr_in); 1589 error = 0; 1590 } 1591#endif 1592#ifdef INET6 1593 if (av->assoc_value == AF_INET6) { 1594 av->assoc_value = sizeof(struct sockaddr_in6); 1595 error = 0; 1596 } 1597#endif 1598 *optsize = sizeof(*av); 1599 } 1600 break; 1601 case SCTP_GET_ASSOC_NUMBER: 1602 { 1603 uint32_t *value, cnt; 1604 1605 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1606 cnt = 0; 1607 SCTP_INP_RLOCK(inp); 1608 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1609 cnt++; 1610 } 1611 SCTP_INP_RUNLOCK(inp); 1612 *value = cnt; 1613 *optsize = sizeof(uint32_t); 1614 } 1615 break; 1616 1617 case SCTP_GET_ASSOC_ID_LIST: 1618 { 1619 struct sctp_assoc_ids *ids; 1620 unsigned int at, limit; 1621 1622 SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize); 1623 at = 0; 1624 limit = *optsize / sizeof(sctp_assoc_t); 1625 SCTP_INP_RLOCK(inp); 1626 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1627 if (at < limit) { 1628 ids->gaids_assoc_id[at++] = sctp_get_associd(stcb); 1629 } else { 1630 error = EINVAL; 1631 break; 1632 } 1633 } 1634 SCTP_INP_RUNLOCK(inp); 1635 *optsize = at * sizeof(sctp_assoc_t); 1636 } 1637 break; 1638 case SCTP_CONTEXT: 1639 { 1640 struct sctp_assoc_value *av; 1641 1642 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1643 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1644 1645 if (stcb) { 1646 av->assoc_value = stcb->asoc.context; 1647 SCTP_TCB_UNLOCK(stcb); 1648 } else { 1649 SCTP_INP_RLOCK(inp); 1650 av->assoc_value = inp->sctp_context; 1651 SCTP_INP_RUNLOCK(inp); 1652 } 1653 *optsize = sizeof(*av); 1654 } 1655 break; 1656 case SCTP_VRF_ID: 1657 { 1658 uint32_t *default_vrfid; 1659 1660 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize); 1661 *default_vrfid = inp->def_vrf_id; 1662 break; 1663 } 1664 case SCTP_GET_ASOC_VRF: 1665 { 1666 struct sctp_assoc_value *id; 1667 1668 SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize); 1669 SCTP_FIND_STCB(inp, stcb, id->assoc_id); 1670 if (stcb == NULL) { 1671 error = EINVAL; 1672 break; 1673 } 1674 id->assoc_value = stcb->asoc.vrf_id; 1675 break; 1676 } 1677 case SCTP_GET_VRF_IDS: 1678 { 1679 error = EOPNOTSUPP; 1680 break; 1681 } 1682 case SCTP_GET_NONCE_VALUES: 1683 { 1684 struct sctp_get_nonce_values *gnv; 1685 1686 SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize); 1687 SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id); 1688 1689 if (stcb) { 1690 gnv->gn_peers_tag = stcb->asoc.peer_vtag; 1691 gnv->gn_local_tag = stcb->asoc.my_vtag; 1692 SCTP_TCB_UNLOCK(stcb); 1693 } else { 1694 error = ENOTCONN; 1695 } 1696 *optsize = sizeof(*gnv); 1697 } 1698 break; 1699 case SCTP_DELAYED_SACK: 1700 { 1701 struct sctp_sack_info *sack; 1702 1703 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize); 1704 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 1705 if (stcb) { 1706 sack->sack_delay = stcb->asoc.delayed_ack; 1707 sack->sack_freq = stcb->asoc.sack_freq; 1708 SCTP_TCB_UNLOCK(stcb); 1709 } else { 1710 SCTP_INP_RLOCK(inp); 1711 sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]); 1712 sack->sack_freq = inp->sctp_ep.sctp_sack_freq; 1713 SCTP_INP_RUNLOCK(inp); 1714 } 1715 *optsize = sizeof(*sack); 1716 } 1717 break; 1718 1719 case SCTP_GET_SNDBUF_USE: 1720 { 1721 struct sctp_sockstat *ss; 1722 1723 SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize); 1724 SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id); 1725 1726 if (stcb) { 1727 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size; 1728 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue + 1729 stcb->asoc.size_on_all_streams); 1730 SCTP_TCB_UNLOCK(stcb); 1731 } else { 1732 error = ENOTCONN; 1733 } 1734 *optsize = sizeof(struct sctp_sockstat); 1735 } 1736 break; 1737 case SCTP_MAX_BURST: 1738 { 1739 uint8_t *value; 1740 1741 SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize); 1742 1743 SCTP_INP_RLOCK(inp); 1744 *value = inp->sctp_ep.max_burst; 1745 SCTP_INP_RUNLOCK(inp); 1746 *optsize = sizeof(uint8_t); 1747 } 1748 break; 1749 case SCTP_MAXSEG: 1750 { 1751 struct sctp_assoc_value *av; 1752 int ovh; 1753 1754 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1755 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1756 1757 if (stcb) { 1758 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc); 1759 SCTP_TCB_UNLOCK(stcb); 1760 } else { 1761 SCTP_INP_RLOCK(inp); 1762 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1763 ovh = SCTP_MED_OVERHEAD; 1764 } else { 1765 ovh = SCTP_MED_V4_OVERHEAD; 1766 } 1767 if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT) 1768 av->assoc_value = 0; 1769 else 1770 av->assoc_value = inp->sctp_frag_point - ovh; 1771 SCTP_INP_RUNLOCK(inp); 1772 } 1773 *optsize = sizeof(struct sctp_assoc_value); 1774 } 1775 break; 1776 case SCTP_GET_STAT_LOG: 1777 error = sctp_fill_stat_log(optval, optsize); 1778 break; 1779 case SCTP_EVENTS: 1780 { 1781 struct sctp_event_subscribe *events; 1782 1783 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize); 1784 memset(events, 0, sizeof(*events)); 1785 SCTP_INP_RLOCK(inp); 1786 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT)) 1787 events->sctp_data_io_event = 1; 1788 1789 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT)) 1790 events->sctp_association_event = 1; 1791 1792 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT)) 1793 events->sctp_address_event = 1; 1794 1795 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT)) 1796 events->sctp_send_failure_event = 1; 1797 1798 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR)) 1799 events->sctp_peer_error_event = 1; 1800 1801 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT)) 1802 events->sctp_shutdown_event = 1; 1803 1804 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT)) 1805 events->sctp_partial_delivery_event = 1; 1806 1807 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT)) 1808 events->sctp_adaptation_layer_event = 1; 1809 1810 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT)) 1811 events->sctp_authentication_event = 1; 1812 1813 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT)) 1814 events->sctp_stream_reset_events = 1; 1815 SCTP_INP_RUNLOCK(inp); 1816 *optsize = sizeof(struct sctp_event_subscribe); 1817 } 1818 break; 1819 1820 case SCTP_ADAPTATION_LAYER: 1821 { 1822 uint32_t *value; 1823 1824 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1825 1826 SCTP_INP_RLOCK(inp); 1827 *value = inp->sctp_ep.adaptation_layer_indicator; 1828 SCTP_INP_RUNLOCK(inp); 1829 *optsize = sizeof(uint32_t); 1830 } 1831 break; 1832 case SCTP_SET_INITIAL_DBG_SEQ: 1833 { 1834 uint32_t *value; 1835 1836 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1837 SCTP_INP_RLOCK(inp); 1838 *value = inp->sctp_ep.initial_sequence_debug; 1839 SCTP_INP_RUNLOCK(inp); 1840 *optsize = sizeof(uint32_t); 1841 } 1842 break; 1843 case SCTP_GET_LOCAL_ADDR_SIZE: 1844 { 1845 uint32_t *value; 1846 1847 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1848 SCTP_INP_RLOCK(inp); 1849 *value = sctp_count_max_addresses(inp); 1850 SCTP_INP_RUNLOCK(inp); 1851 *optsize = sizeof(uint32_t); 1852 } 1853 break; 1854 case SCTP_GET_REMOTE_ADDR_SIZE: 1855 { 1856 uint32_t *value; 1857 size_t size; 1858 struct sctp_nets *net; 1859 1860 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1861 /* FIXME MT: change to sctp_assoc_value? */ 1862 SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value); 1863 1864 if (stcb) { 1865 size = 0; 1866 /* Count the sizes */ 1867 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 1868 if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) || 1869 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 1870 size += sizeof(struct sockaddr_in6); 1871 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 1872 size += sizeof(struct sockaddr_in); 1873 } else { 1874 /* huh */ 1875 break; 1876 } 1877 } 1878 SCTP_TCB_UNLOCK(stcb); 1879 *value = (uint32_t) size; 1880 } else { 1881 error = ENOTCONN; 1882 } 1883 *optsize = sizeof(uint32_t); 1884 } 1885 break; 1886 case SCTP_GET_PEER_ADDRESSES: 1887 /* 1888 * Get the address information, an array is passed in to 1889 * fill up we pack it. 1890 */ 1891 { 1892 size_t cpsz, left; 1893 struct sockaddr_storage *sas; 1894 struct sctp_nets *net; 1895 struct sctp_getaddresses *saddr; 1896 1897 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 1898 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 1899 1900 if (stcb) { 1901 left = (*optsize) - sizeof(struct sctp_getaddresses); 1902 *optsize = sizeof(struct sctp_getaddresses); 1903 sas = (struct sockaddr_storage *)&saddr->addr[0]; 1904 1905 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 1906 if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) || 1907 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 1908 cpsz = sizeof(struct sockaddr_in6); 1909 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 1910 cpsz = sizeof(struct sockaddr_in); 1911 } else { 1912 /* huh */ 1913 break; 1914 } 1915 if (left < cpsz) { 1916 /* not enough room. */ 1917 break; 1918 } 1919 if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) && 1920 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) { 1921 /* Must map the address */ 1922 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr, 1923 (struct sockaddr_in6 *)sas); 1924 } else { 1925 memcpy(sas, &net->ro._l_addr, cpsz); 1926 } 1927 ((struct sockaddr_in *)sas)->sin_port = stcb->rport; 1928 1929 sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz); 1930 left -= cpsz; 1931 *optsize += cpsz; 1932 } 1933 SCTP_TCB_UNLOCK(stcb); 1934 } else { 1935 error = ENOENT; 1936 } 1937 } 1938 break; 1939 case SCTP_GET_LOCAL_ADDRESSES: 1940 { 1941 size_t limit, actual; 1942 struct sockaddr_storage *sas; 1943 struct sctp_getaddresses *saddr; 1944 1945 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 1946 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 1947 1948 sas = (struct sockaddr_storage *)&saddr->addr[0]; 1949 limit = *optsize - sizeof(sctp_assoc_t); 1950 actual = sctp_fill_up_addresses(inp, stcb, limit, sas); 1951 if (stcb) { 1952 SCTP_TCB_UNLOCK(stcb); 1953 } 1954 *optsize = sizeof(struct sockaddr_storage) + actual; 1955 } 1956 break; 1957 case SCTP_PEER_ADDR_PARAMS: 1958 { 1959 struct sctp_paddrparams *paddrp; 1960 struct sctp_nets *net; 1961 1962 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize); 1963 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 1964 1965 net = NULL; 1966 if (stcb) { 1967 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 1968 } else { 1969 /* 1970 * We increment here since 1971 * sctp_findassociation_ep_addr() wil do a 1972 * decrement if it finds the stcb as long as 1973 * the locked tcb (last argument) is NOT a 1974 * TCB.. aka NULL. 1975 */ 1976 SCTP_INP_INCR_REF(inp); 1977 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL); 1978 if (stcb == NULL) { 1979 SCTP_INP_DECR_REF(inp); 1980 } 1981 } 1982 1983 if (stcb) { 1984 /* Applys to the specific association */ 1985 paddrp->spp_flags = 0; 1986 if (net) { 1987 int ovh; 1988 1989 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1990 ovh = SCTP_MED_OVERHEAD; 1991 } else { 1992 ovh = SCTP_MED_V4_OVERHEAD; 1993 } 1994 1995 1996 paddrp->spp_pathmaxrxt = net->failure_threshold; 1997 paddrp->spp_pathmtu = net->mtu - ovh; 1998 /* get flags for HB */ 1999 if (net->dest_state & SCTP_ADDR_NOHB) 2000 paddrp->spp_flags |= SPP_HB_DISABLE; 2001 else 2002 paddrp->spp_flags |= SPP_HB_ENABLE; 2003 /* get flags for PMTU */ 2004 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2005 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2006 } else { 2007 paddrp->spp_flags |= SPP_PMTUD_DISABLE; 2008 } 2009#ifdef INET 2010 if (net->ro._l_addr.sin.sin_family == AF_INET) { 2011 paddrp->spp_ipv4_tos = net->tos_flowlabel & 0x000000fc; 2012 paddrp->spp_flags |= SPP_IPV4_TOS; 2013 } 2014#endif 2015#ifdef INET6 2016 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 2017 paddrp->spp_ipv6_flowlabel = net->tos_flowlabel; 2018 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2019 } 2020#endif 2021 } else { 2022 /* 2023 * No destination so return default 2024 * value 2025 */ 2026 int cnt = 0; 2027 2028 paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure; 2029 paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc); 2030#ifdef INET 2031 paddrp->spp_ipv4_tos = stcb->asoc.default_tos & 0x000000fc; 2032 paddrp->spp_flags |= SPP_IPV4_TOS; 2033#endif 2034#ifdef INET6 2035 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel; 2036 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2037#endif 2038 /* default settings should be these */ 2039 if (stcb->asoc.hb_is_disabled == 0) { 2040 paddrp->spp_flags |= SPP_HB_ENABLE; 2041 } else { 2042 paddrp->spp_flags |= SPP_HB_DISABLE; 2043 } 2044 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2045 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2046 cnt++; 2047 } 2048 } 2049 if (cnt) { 2050 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2051 } 2052 } 2053 paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay; 2054 paddrp->spp_assoc_id = sctp_get_associd(stcb); 2055 SCTP_TCB_UNLOCK(stcb); 2056 } else { 2057 /* Use endpoint defaults */ 2058 SCTP_INP_RLOCK(inp); 2059 paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure; 2060 paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]); 2061 paddrp->spp_assoc_id = (sctp_assoc_t) 0; 2062 /* get inp's default */ 2063#ifdef INET 2064 paddrp->spp_ipv4_tos = inp->ip_inp.inp.inp_ip_tos; 2065 paddrp->spp_flags |= SPP_IPV4_TOS; 2066#endif 2067#ifdef INET6 2068 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2069 paddrp->spp_ipv6_flowlabel = ((struct in6pcb *)inp)->in6p_flowinfo; 2070 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2071 } 2072#endif 2073 /* can't return this */ 2074 paddrp->spp_pathmtu = 0; 2075 2076 /* default behavior, no stcb */ 2077 paddrp->spp_flags = SPP_PMTUD_ENABLE; 2078 2079 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) { 2080 paddrp->spp_flags |= SPP_HB_ENABLE; 2081 } else { 2082 paddrp->spp_flags |= SPP_HB_DISABLE; 2083 } 2084 SCTP_INP_RUNLOCK(inp); 2085 } 2086 *optsize = sizeof(struct sctp_paddrparams); 2087 } 2088 break; 2089 case SCTP_GET_PEER_ADDR_INFO: 2090 { 2091 struct sctp_paddrinfo *paddri; 2092 struct sctp_nets *net; 2093 2094 SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize); 2095 SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id); 2096 2097 net = NULL; 2098 if (stcb) { 2099 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address); 2100 } else { 2101 /* 2102 * We increment here since 2103 * sctp_findassociation_ep_addr() wil do a 2104 * decrement if it finds the stcb as long as 2105 * the locked tcb (last argument) is NOT a 2106 * TCB.. aka NULL. 2107 */ 2108 SCTP_INP_INCR_REF(inp); 2109 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL); 2110 if (stcb == NULL) { 2111 SCTP_INP_DECR_REF(inp); 2112 } 2113 } 2114 2115 if ((stcb) && (net)) { 2116 paddri->spinfo_state = net->dest_state & (SCTP_REACHABLE_MASK | SCTP_ADDR_NOHB); 2117 paddri->spinfo_cwnd = net->cwnd; 2118 paddri->spinfo_srtt = ((net->lastsa >> 2) + net->lastsv) >> 1; 2119 paddri->spinfo_rto = net->RTO; 2120 paddri->spinfo_assoc_id = sctp_get_associd(stcb); 2121 SCTP_TCB_UNLOCK(stcb); 2122 } else { 2123 if (stcb) { 2124 SCTP_TCB_UNLOCK(stcb); 2125 } 2126 error = ENOENT; 2127 } 2128 *optsize = sizeof(struct sctp_paddrinfo); 2129 } 2130 break; 2131 case SCTP_PCB_STATUS: 2132 { 2133 struct sctp_pcbinfo *spcb; 2134 2135 SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize); 2136 sctp_fill_pcbinfo(spcb); 2137 *optsize = sizeof(struct sctp_pcbinfo); 2138 } 2139 break; 2140 2141 case SCTP_STATUS: 2142 { 2143 struct sctp_nets *net; 2144 struct sctp_status *sstat; 2145 2146 SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize); 2147 SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id); 2148 2149 if (stcb == NULL) { 2150 error = EINVAL; 2151 break; 2152 } 2153 /* 2154 * I think passing the state is fine since 2155 * sctp_constants.h will be available to the user 2156 * land. 2157 */ 2158 sstat->sstat_state = stcb->asoc.state; 2159 sstat->sstat_rwnd = stcb->asoc.peers_rwnd; 2160 sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt; 2161 /* 2162 * We can't include chunks that have been passed to 2163 * the socket layer. Only things in queue. 2164 */ 2165 sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue + 2166 stcb->asoc.cnt_on_all_streams); 2167 2168 2169 sstat->sstat_instrms = stcb->asoc.streamincnt; 2170 sstat->sstat_outstrms = stcb->asoc.streamoutcnt; 2171 sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc); 2172 memcpy(&sstat->sstat_primary.spinfo_address, 2173 &stcb->asoc.primary_destination->ro._l_addr, 2174 ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len); 2175 net = stcb->asoc.primary_destination; 2176 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport; 2177 /* 2178 * Again the user can get info from sctp_constants.h 2179 * for what the state of the network is. 2180 */ 2181 sstat->sstat_primary.spinfo_state = net->dest_state & SCTP_REACHABLE_MASK; 2182 sstat->sstat_primary.spinfo_cwnd = net->cwnd; 2183 sstat->sstat_primary.spinfo_srtt = net->lastsa; 2184 sstat->sstat_primary.spinfo_rto = net->RTO; 2185 sstat->sstat_primary.spinfo_mtu = net->mtu; 2186 sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb); 2187 SCTP_TCB_UNLOCK(stcb); 2188 *optsize = sizeof(*sstat); 2189 } 2190 break; 2191 case SCTP_RTOINFO: 2192 { 2193 struct sctp_rtoinfo *srto; 2194 2195 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize); 2196 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 2197 2198 if (stcb) { 2199 srto->srto_initial = stcb->asoc.initial_rto; 2200 srto->srto_max = stcb->asoc.maxrto; 2201 srto->srto_min = stcb->asoc.minrto; 2202 SCTP_TCB_UNLOCK(stcb); 2203 } else { 2204 SCTP_INP_RLOCK(inp); 2205 srto->srto_initial = inp->sctp_ep.initial_rto; 2206 srto->srto_max = inp->sctp_ep.sctp_maxrto; 2207 srto->srto_min = inp->sctp_ep.sctp_minrto; 2208 SCTP_INP_RUNLOCK(inp); 2209 } 2210 *optsize = sizeof(*srto); 2211 } 2212 break; 2213 case SCTP_ASSOCINFO: 2214 { 2215 struct sctp_assocparams *sasoc; 2216 uint32_t oldval; 2217 2218 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize); 2219 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 2220 2221 if (stcb) { 2222 oldval = sasoc->sasoc_cookie_life; 2223 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life); 2224 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times; 2225 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 2226 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd; 2227 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd; 2228 SCTP_TCB_UNLOCK(stcb); 2229 } else { 2230 SCTP_INP_RLOCK(inp); 2231 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life); 2232 sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times; 2233 sasoc->sasoc_number_peer_destinations = 0; 2234 sasoc->sasoc_peer_rwnd = 0; 2235 sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv); 2236 SCTP_INP_RUNLOCK(inp); 2237 } 2238 *optsize = sizeof(*sasoc); 2239 } 2240 break; 2241 case SCTP_DEFAULT_SEND_PARAM: 2242 { 2243 struct sctp_sndrcvinfo *s_info; 2244 2245 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize); 2246 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 2247 2248 if (stcb) { 2249 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send)); 2250 SCTP_TCB_UNLOCK(stcb); 2251 } else { 2252 SCTP_INP_RLOCK(inp); 2253 memcpy(s_info, &inp->def_send, sizeof(inp->def_send)); 2254 SCTP_INP_RUNLOCK(inp); 2255 } 2256 *optsize = sizeof(*s_info); 2257 } 2258 break; 2259 case SCTP_INITMSG: 2260 { 2261 struct sctp_initmsg *sinit; 2262 2263 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize); 2264 SCTP_INP_RLOCK(inp); 2265 sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count; 2266 sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome; 2267 sinit->sinit_max_attempts = inp->sctp_ep.max_init_times; 2268 sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max; 2269 SCTP_INP_RUNLOCK(inp); 2270 *optsize = sizeof(*sinit); 2271 } 2272 break; 2273 case SCTP_PRIMARY_ADDR: 2274 /* we allow a "get" operation on this */ 2275 { 2276 struct sctp_setprim *ssp; 2277 2278 SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize); 2279 SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id); 2280 2281 if (stcb) { 2282 /* simply copy out the sockaddr_storage... */ 2283 int len; 2284 2285 len = *optsize; 2286 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len) 2287 len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len; 2288 2289 memcpy(&ssp->ssp_addr, 2290 &stcb->asoc.primary_destination->ro._l_addr, 2291 len); 2292 SCTP_TCB_UNLOCK(stcb); 2293 } else { 2294 error = EINVAL; 2295 } 2296 *optsize = sizeof(*ssp); 2297 } 2298 break; 2299 2300 case SCTP_HMAC_IDENT: 2301 { 2302 struct sctp_hmacalgo *shmac; 2303 sctp_hmaclist_t *hmaclist; 2304 uint32_t size; 2305 int i; 2306 2307 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize); 2308 2309 SCTP_INP_RLOCK(inp); 2310 hmaclist = inp->sctp_ep.local_hmacs; 2311 if (hmaclist == NULL) { 2312 /* no HMACs to return */ 2313 *optsize = sizeof(*shmac); 2314 SCTP_INP_RUNLOCK(inp); 2315 break; 2316 } 2317 /* is there room for all of the hmac ids? */ 2318 size = sizeof(*shmac) + (hmaclist->num_algo * 2319 sizeof(shmac->shmac_idents[0])); 2320 if ((size_t)(*optsize) < size) { 2321 error = EINVAL; 2322 SCTP_INP_RUNLOCK(inp); 2323 break; 2324 } 2325 /* copy in the list */ 2326 for (i = 0; i < hmaclist->num_algo; i++) 2327 shmac->shmac_idents[i] = hmaclist->hmac[i]; 2328 SCTP_INP_RUNLOCK(inp); 2329 *optsize = size; 2330 break; 2331 } 2332 case SCTP_AUTH_ACTIVE_KEY: 2333 { 2334 struct sctp_authkeyid *scact; 2335 2336 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize); 2337 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 2338 2339 if (stcb) { 2340 /* get the active key on the assoc */ 2341 scact->scact_keynumber = stcb->asoc.authinfo.assoc_keyid; 2342 SCTP_TCB_UNLOCK(stcb); 2343 } else { 2344 /* get the endpoint active key */ 2345 SCTP_INP_RLOCK(inp); 2346 scact->scact_keynumber = inp->sctp_ep.default_keyid; 2347 SCTP_INP_RUNLOCK(inp); 2348 } 2349 *optsize = sizeof(*scact); 2350 break; 2351 } 2352 case SCTP_LOCAL_AUTH_CHUNKS: 2353 { 2354 struct sctp_authchunks *sac; 2355 sctp_auth_chklist_t *chklist = NULL; 2356 size_t size = 0; 2357 2358 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2359 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2360 2361 if (stcb) { 2362 /* get off the assoc */ 2363 chklist = stcb->asoc.local_auth_chunks; 2364 /* is there enough space? */ 2365 size = sctp_auth_get_chklist_size(chklist); 2366 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2367 error = EINVAL; 2368 } else { 2369 /* copy in the chunks */ 2370 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2371 } 2372 SCTP_TCB_UNLOCK(stcb); 2373 } else { 2374 /* get off the endpoint */ 2375 SCTP_INP_RLOCK(inp); 2376 chklist = inp->sctp_ep.local_auth_chunks; 2377 /* is there enough space? */ 2378 size = sctp_auth_get_chklist_size(chklist); 2379 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2380 error = EINVAL; 2381 } else { 2382 /* copy in the chunks */ 2383 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2384 } 2385 SCTP_INP_RUNLOCK(inp); 2386 } 2387 *optsize = sizeof(struct sctp_authchunks) + size; 2388 break; 2389 } 2390 case SCTP_PEER_AUTH_CHUNKS: 2391 { 2392 struct sctp_authchunks *sac; 2393 sctp_auth_chklist_t *chklist = NULL; 2394 size_t size = 0; 2395 2396 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2397 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2398 2399 if (stcb) { 2400 /* get off the assoc */ 2401 chklist = stcb->asoc.peer_auth_chunks; 2402 /* is there enough space? */ 2403 size = sctp_auth_get_chklist_size(chklist); 2404 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2405 error = EINVAL; 2406 } else { 2407 /* copy in the chunks */ 2408 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2409 } 2410 SCTP_TCB_UNLOCK(stcb); 2411 } else { 2412 error = ENOENT; 2413 } 2414 *optsize = sizeof(struct sctp_authchunks) + size; 2415 break; 2416 } 2417 2418 2419 default: 2420 error = ENOPROTOOPT; 2421 *optsize = 0; 2422 break; 2423 } /* end switch (sopt->sopt_name) */ 2424 return (error); 2425} 2426 2427static int 2428sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize, 2429 void *p) 2430{ 2431 int error, set_opt; 2432 uint32_t *mopt; 2433 struct sctp_tcb *stcb = NULL; 2434 struct sctp_inpcb *inp; 2435 uint32_t vrf_id; 2436 2437 if (optval == NULL) { 2438 SCTP_PRINTF("optval is NULL\n"); 2439 return (EINVAL); 2440 } 2441 inp = (struct sctp_inpcb *)so->so_pcb; 2442 if (inp == 0) { 2443 SCTP_PRINTF("inp is NULL?\n"); 2444 return EINVAL; 2445 } 2446 vrf_id = inp->def_vrf_id; 2447 2448 error = 0; 2449 switch (optname) { 2450 case SCTP_NODELAY: 2451 case SCTP_AUTOCLOSE: 2452 case SCTP_AUTO_ASCONF: 2453 case SCTP_EXPLICIT_EOR: 2454 case SCTP_DISABLE_FRAGMENTS: 2455 case SCTP_USE_EXT_RCVINFO: 2456 case SCTP_I_WANT_MAPPED_V4_ADDR: 2457 /* copy in the option value */ 2458 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 2459 set_opt = 0; 2460 if (error) 2461 break; 2462 switch (optname) { 2463 case SCTP_DISABLE_FRAGMENTS: 2464 set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT; 2465 break; 2466 case SCTP_AUTO_ASCONF: 2467 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF; 2468 break; 2469 case SCTP_EXPLICIT_EOR: 2470 set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR; 2471 break; 2472 case SCTP_USE_EXT_RCVINFO: 2473 set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO; 2474 break; 2475 case SCTP_I_WANT_MAPPED_V4_ADDR: 2476 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2477 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4; 2478 } else { 2479 return (EINVAL); 2480 } 2481 break; 2482 case SCTP_NODELAY: 2483 set_opt = SCTP_PCB_FLAGS_NODELAY; 2484 break; 2485 case SCTP_AUTOCLOSE: 2486 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2487 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 2488 return (EINVAL); 2489 } 2490 set_opt = SCTP_PCB_FLAGS_AUTOCLOSE; 2491 /* 2492 * The value is in ticks. Note this does not effect 2493 * old associations, only new ones. 2494 */ 2495 inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt); 2496 break; 2497 } 2498 SCTP_INP_WLOCK(inp); 2499 if (*mopt != 0) { 2500 sctp_feature_on(inp, set_opt); 2501 } else { 2502 sctp_feature_off(inp, set_opt); 2503 } 2504 SCTP_INP_WUNLOCK(inp); 2505 break; 2506 case SCTP_PARTIAL_DELIVERY_POINT: 2507 { 2508 uint32_t *value; 2509 2510 SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize); 2511 if (*value > SCTP_SB_LIMIT_RCV(so)) { 2512 error = EINVAL; 2513 break; 2514 } 2515 inp->partial_delivery_point = *value; 2516 } 2517 break; 2518 case SCTP_FRAGMENT_INTERLEAVE: 2519 /* not yet until we re-write sctp_recvmsg() */ 2520 { 2521 uint32_t *level; 2522 2523 SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize); 2524 if (*level == SCTP_FRAG_LEVEL_2) { 2525 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2526 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2527 } else if (*level == SCTP_FRAG_LEVEL_1) { 2528 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2529 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2530 } else if (*level == SCTP_FRAG_LEVEL_0) { 2531 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2532 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2533 2534 } else { 2535 error = EINVAL; 2536 } 2537 } 2538 break; 2539 case SCTP_CMT_ON_OFF: 2540 { 2541 struct sctp_assoc_value *av; 2542 2543 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2544 if (sctp_cmt_on_off) { 2545 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2546 if (stcb) { 2547 stcb->asoc.sctp_cmt_on_off = (uint8_t) av->assoc_value; 2548 SCTP_TCB_UNLOCK(stcb); 2549 } else { 2550 error = ENOTCONN; 2551 } 2552 } else { 2553 error = ENOPROTOOPT; 2554 } 2555 } 2556 break; 2557 /* JRS - Set socket option for pluggable congestion control */ 2558 case SCTP_PLUGGABLE_CC: 2559 { 2560 struct sctp_assoc_value *av; 2561 2562 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2563 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2564 if (stcb) { 2565 switch (av->assoc_value) { 2566 /* 2567 * JRS - Standard TCP congestion 2568 * control 2569 */ 2570 case SCTP_CC_RFC2581: 2571 { 2572 stcb->asoc.congestion_control_module = SCTP_CC_RFC2581; 2573 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; 2574 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_cwnd_update_after_sack; 2575 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_cwnd_update_after_fr; 2576 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; 2577 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; 2578 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2579 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2580 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; 2581 SCTP_TCB_UNLOCK(stcb); 2582 break; 2583 } 2584 /* 2585 * JRS - High Speed TCP congestion 2586 * control (Floyd) 2587 */ 2588 case SCTP_CC_HSTCP: 2589 { 2590 stcb->asoc.congestion_control_module = SCTP_CC_HSTCP; 2591 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; 2592 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_hs_cwnd_update_after_sack; 2593 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_hs_cwnd_update_after_fr; 2594 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; 2595 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; 2596 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2597 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2598 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; 2599 SCTP_TCB_UNLOCK(stcb); 2600 break; 2601 } 2602 /* JRS - HTCP congestion control */ 2603 case SCTP_CC_HTCP: 2604 { 2605 stcb->asoc.congestion_control_module = SCTP_CC_HTCP; 2606 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_htcp_set_initial_cc_param; 2607 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_htcp_cwnd_update_after_sack; 2608 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_htcp_cwnd_update_after_fr; 2609 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_htcp_cwnd_update_after_timeout; 2610 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_htcp_cwnd_update_after_ecn_echo; 2611 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2612 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2613 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_htcp_cwnd_update_after_fr_timer; 2614 SCTP_TCB_UNLOCK(stcb); 2615 break; 2616 } 2617 /* 2618 * JRS - All other values are 2619 * invalid 2620 */ 2621 default: 2622 { 2623 error = EINVAL; 2624 SCTP_TCB_UNLOCK(stcb); 2625 break; 2626 } 2627 } 2628 } else { 2629 switch (av->assoc_value) { 2630 case SCTP_CC_RFC2581: 2631 case SCTP_CC_HSTCP: 2632 case SCTP_CC_HTCP: 2633 inp->sctp_ep.sctp_default_cc_module = av->assoc_value; 2634 break; 2635 default: 2636 error = EINVAL; 2637 break; 2638 }; 2639 } 2640 } 2641 break; 2642 case SCTP_CLR_STAT_LOG: 2643 error = EOPNOTSUPP; 2644 break; 2645 case SCTP_CONTEXT: 2646 { 2647 struct sctp_assoc_value *av; 2648 2649 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2650 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2651 2652 if (stcb) { 2653 stcb->asoc.context = av->assoc_value; 2654 SCTP_TCB_UNLOCK(stcb); 2655 } else { 2656 SCTP_INP_WLOCK(inp); 2657 inp->sctp_context = av->assoc_value; 2658 SCTP_INP_WUNLOCK(inp); 2659 } 2660 } 2661 break; 2662 case SCTP_VRF_ID: 2663 { 2664 uint32_t *default_vrfid; 2665 2666 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize); 2667 if (*default_vrfid > SCTP_MAX_VRF_ID) { 2668 error = EINVAL; 2669 break; 2670 } 2671 inp->def_vrf_id = *default_vrfid; 2672 break; 2673 } 2674 case SCTP_DEL_VRF_ID: 2675 { 2676 error = EOPNOTSUPP; 2677 break; 2678 } 2679 case SCTP_ADD_VRF_ID: 2680 { 2681 error = EOPNOTSUPP; 2682 break; 2683 } 2684 case SCTP_DELAYED_SACK: 2685 { 2686 struct sctp_sack_info *sack; 2687 2688 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize); 2689 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 2690 if (sack->sack_delay) { 2691 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) 2692 sack->sack_delay = SCTP_MAX_SACK_DELAY; 2693 } 2694 if (stcb) { 2695 if (sack->sack_delay) { 2696 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 2697 sack->sack_delay = TICKS_TO_MSEC(1); 2698 } 2699 stcb->asoc.delayed_ack = sack->sack_delay; 2700 } 2701 if (sack->sack_freq) { 2702 stcb->asoc.sack_freq = sack->sack_freq; 2703 } 2704 SCTP_TCB_UNLOCK(stcb); 2705 } else { 2706 SCTP_INP_WLOCK(inp); 2707 if (sack->sack_delay) { 2708 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 2709 sack->sack_delay = TICKS_TO_MSEC(1); 2710 } 2711 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay); 2712 } 2713 if (sack->sack_freq) { 2714 inp->sctp_ep.sctp_sack_freq = sack->sack_freq; 2715 } 2716 SCTP_INP_WUNLOCK(inp); 2717 } 2718 break; 2719 } 2720 case SCTP_AUTH_CHUNK: 2721 { 2722 struct sctp_authchunk *sauth; 2723 2724 SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize); 2725 2726 SCTP_INP_WLOCK(inp); 2727 if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) 2728 error = EINVAL; 2729 SCTP_INP_WUNLOCK(inp); 2730 break; 2731 } 2732 case SCTP_AUTH_KEY: 2733 { 2734 struct sctp_authkey *sca; 2735 struct sctp_keyhead *shared_keys; 2736 sctp_sharedkey_t *shared_key; 2737 sctp_key_t *key = NULL; 2738 size_t size; 2739 2740 SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize); 2741 SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id); 2742 size = optsize - sizeof(*sca); 2743 2744 if (stcb) { 2745 /* set it on the assoc */ 2746 shared_keys = &stcb->asoc.shared_keys; 2747 /* clear the cached keys for this key id */ 2748 sctp_clear_cachedkeys(stcb, sca->sca_keynumber); 2749 /* 2750 * create the new shared key and 2751 * insert/replace it 2752 */ 2753 if (size > 0) { 2754 key = sctp_set_key(sca->sca_key, (uint32_t) size); 2755 if (key == NULL) { 2756 error = ENOMEM; 2757 SCTP_TCB_UNLOCK(stcb); 2758 break; 2759 } 2760 } 2761 shared_key = sctp_alloc_sharedkey(); 2762 if (shared_key == NULL) { 2763 sctp_free_key(key); 2764 error = ENOMEM; 2765 SCTP_TCB_UNLOCK(stcb); 2766 break; 2767 } 2768 shared_key->key = key; 2769 shared_key->keyid = sca->sca_keynumber; 2770 sctp_insert_sharedkey(shared_keys, shared_key); 2771 SCTP_TCB_UNLOCK(stcb); 2772 } else { 2773 /* set it on the endpoint */ 2774 SCTP_INP_WLOCK(inp); 2775 shared_keys = &inp->sctp_ep.shared_keys; 2776 /* 2777 * clear the cached keys on all assocs for 2778 * this key id 2779 */ 2780 sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber); 2781 /* 2782 * create the new shared key and 2783 * insert/replace it 2784 */ 2785 if (size > 0) { 2786 key = sctp_set_key(sca->sca_key, (uint32_t) size); 2787 if (key == NULL) { 2788 error = ENOMEM; 2789 SCTP_INP_WUNLOCK(inp); 2790 break; 2791 } 2792 } 2793 shared_key = sctp_alloc_sharedkey(); 2794 if (shared_key == NULL) { 2795 sctp_free_key(key); 2796 error = ENOMEM; 2797 SCTP_INP_WUNLOCK(inp); 2798 break; 2799 } 2800 shared_key->key = key; 2801 shared_key->keyid = sca->sca_keynumber; 2802 sctp_insert_sharedkey(shared_keys, shared_key); 2803 SCTP_INP_WUNLOCK(inp); 2804 } 2805 break; 2806 } 2807 case SCTP_HMAC_IDENT: 2808 { 2809 struct sctp_hmacalgo *shmac; 2810 sctp_hmaclist_t *hmaclist; 2811 uint32_t hmacid; 2812 size_t size, i, found; 2813 2814 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize); 2815 size = (optsize - sizeof(*shmac)) / sizeof(shmac->shmac_idents[0]); 2816 hmaclist = sctp_alloc_hmaclist(size); 2817 if (hmaclist == NULL) { 2818 error = ENOMEM; 2819 break; 2820 } 2821 for (i = 0; i < size; i++) { 2822 hmacid = shmac->shmac_idents[i]; 2823 if (sctp_auth_add_hmacid(hmaclist, (uint16_t) hmacid)) { 2824 /* invalid HMACs were found */ ; 2825 error = EINVAL; 2826 sctp_free_hmaclist(hmaclist); 2827 goto sctp_set_hmac_done; 2828 } 2829 } 2830 found = 0; 2831 for (i = 0; i < hmaclist->num_algo; i++) { 2832 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) { 2833 /* already in list */ 2834 found = 1; 2835 } 2836 } 2837 if (!found) { 2838 sctp_free_hmaclist(hmaclist); 2839 error = EINVAL; 2840 break; 2841 } 2842 /* set it on the endpoint */ 2843 SCTP_INP_WLOCK(inp); 2844 if (inp->sctp_ep.local_hmacs) 2845 sctp_free_hmaclist(inp->sctp_ep.local_hmacs); 2846 inp->sctp_ep.local_hmacs = hmaclist; 2847 SCTP_INP_WUNLOCK(inp); 2848 sctp_set_hmac_done: 2849 break; 2850 } 2851 case SCTP_AUTH_ACTIVE_KEY: 2852 { 2853 struct sctp_authkeyid *scact; 2854 2855 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize); 2856 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 2857 2858 /* set the active key on the right place */ 2859 if (stcb) { 2860 /* set the active key on the assoc */ 2861 if (sctp_auth_setactivekey(stcb, scact->scact_keynumber)) 2862 error = EINVAL; 2863 SCTP_TCB_UNLOCK(stcb); 2864 } else { 2865 /* set the active key on the endpoint */ 2866 SCTP_INP_WLOCK(inp); 2867 if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) 2868 error = EINVAL; 2869 SCTP_INP_WUNLOCK(inp); 2870 } 2871 break; 2872 } 2873 case SCTP_AUTH_DELETE_KEY: 2874 { 2875 struct sctp_authkeyid *scdel; 2876 2877 SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize); 2878 SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id); 2879 2880 /* delete the key from the right place */ 2881 if (stcb) { 2882 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) 2883 error = EINVAL; 2884 SCTP_TCB_UNLOCK(stcb); 2885 } else { 2886 SCTP_INP_WLOCK(inp); 2887 if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) 2888 error = EINVAL; 2889 SCTP_INP_WUNLOCK(inp); 2890 } 2891 break; 2892 } 2893 2894 case SCTP_RESET_STREAMS: 2895 { 2896 struct sctp_stream_reset *strrst; 2897 uint8_t send_in = 0, send_tsn = 0, send_out = 0; 2898 int i; 2899 2900 SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize); 2901 SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id); 2902 2903 if (stcb == NULL) { 2904 error = ENOENT; 2905 break; 2906 } 2907 if (stcb->asoc.peer_supports_strreset == 0) { 2908 /* 2909 * Peer does not support it, we return 2910 * protocol not supported since this is true 2911 * for this feature and this peer, not the 2912 * socket request in general. 2913 */ 2914 error = EPROTONOSUPPORT; 2915 SCTP_TCB_UNLOCK(stcb); 2916 break; 2917 } 2918 if (stcb->asoc.stream_reset_outstanding) { 2919 error = EALREADY; 2920 SCTP_TCB_UNLOCK(stcb); 2921 break; 2922 } 2923 if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) { 2924 send_in = 1; 2925 } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) { 2926 send_out = 1; 2927 } else if (strrst->strrst_flags == SCTP_RESET_BOTH) { 2928 send_in = 1; 2929 send_out = 1; 2930 } else if (strrst->strrst_flags == SCTP_RESET_TSN) { 2931 send_tsn = 1; 2932 } else { 2933 error = EINVAL; 2934 SCTP_TCB_UNLOCK(stcb); 2935 break; 2936 } 2937 for (i = 0; i < strrst->strrst_num_streams; i++) { 2938 if ((send_in) && 2939 2940 (strrst->strrst_list[i] > stcb->asoc.streamincnt)) { 2941 error = EINVAL; 2942 goto get_out; 2943 } 2944 if ((send_out) && 2945 (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) { 2946 error = EINVAL; 2947 goto get_out; 2948 } 2949 } 2950 if (error) { 2951 get_out: 2952 SCTP_TCB_UNLOCK(stcb); 2953 break; 2954 } 2955 error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams, 2956 strrst->strrst_list, 2957 send_out, (stcb->asoc.str_reset_seq_in - 3), 2958 send_in, send_tsn); 2959 2960 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ); 2961 SCTP_TCB_UNLOCK(stcb); 2962 } 2963 break; 2964 2965 case SCTP_CONNECT_X: 2966 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 2967 error = EINVAL; 2968 break; 2969 } 2970 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0); 2971 break; 2972 2973 case SCTP_CONNECT_X_DELAYED: 2974 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 2975 error = EINVAL; 2976 break; 2977 } 2978 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1); 2979 break; 2980 2981 case SCTP_CONNECT_X_COMPLETE: 2982 { 2983 struct sockaddr *sa; 2984 struct sctp_nets *net; 2985 2986 /* FIXME MT: check correct? */ 2987 SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize); 2988 2989 /* find tcb */ 2990 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 2991 SCTP_INP_RLOCK(inp); 2992 stcb = LIST_FIRST(&inp->sctp_asoc_list); 2993 if (stcb) { 2994 SCTP_TCB_LOCK(stcb); 2995 net = sctp_findnet(stcb, sa); 2996 } 2997 SCTP_INP_RUNLOCK(inp); 2998 } else { 2999 /* 3000 * We increment here since 3001 * sctp_findassociation_ep_addr() wil do a 3002 * decrement if it finds the stcb as long as 3003 * the locked tcb (last argument) is NOT a 3004 * TCB.. aka NULL. 3005 */ 3006 SCTP_INP_INCR_REF(inp); 3007 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL); 3008 if (stcb == NULL) { 3009 SCTP_INP_DECR_REF(inp); 3010 } 3011 } 3012 3013 if (stcb == NULL) { 3014 error = ENOENT; 3015 break; 3016 } 3017 if (stcb->asoc.delayed_connection == 1) { 3018 stcb->asoc.delayed_connection = 0; 3019 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 3020 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb, 3021 stcb->asoc.primary_destination, 3022 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9); 3023 sctp_send_initiate(inp, stcb); 3024 } else { 3025 /* 3026 * already expired or did not use delayed 3027 * connectx 3028 */ 3029 error = EALREADY; 3030 } 3031 SCTP_TCB_UNLOCK(stcb); 3032 } 3033 break; 3034 case SCTP_MAX_BURST: 3035 { 3036 uint8_t *burst; 3037 3038 SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize); 3039 3040 SCTP_INP_WLOCK(inp); 3041 if (*burst) { 3042 inp->sctp_ep.max_burst = *burst; 3043 } 3044 SCTP_INP_WUNLOCK(inp); 3045 } 3046 break; 3047 case SCTP_MAXSEG: 3048 { 3049 struct sctp_assoc_value *av; 3050 int ovh; 3051 3052 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3053 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3054 3055 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3056 ovh = SCTP_MED_OVERHEAD; 3057 } else { 3058 ovh = SCTP_MED_V4_OVERHEAD; 3059 } 3060 if (stcb) { 3061 if (av->assoc_value) { 3062 stcb->asoc.sctp_frag_point = (av->assoc_value + ovh); 3063 } else { 3064 stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3065 } 3066 SCTP_TCB_UNLOCK(stcb); 3067 } else { 3068 SCTP_INP_WLOCK(inp); 3069 /* 3070 * FIXME MT: I think this is not in tune 3071 * with the API ID 3072 */ 3073 if (av->assoc_value) { 3074 inp->sctp_frag_point = (av->assoc_value + ovh); 3075 } else { 3076 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3077 } 3078 SCTP_INP_WUNLOCK(inp); 3079 } 3080 } 3081 break; 3082 case SCTP_EVENTS: 3083 { 3084 struct sctp_event_subscribe *events; 3085 3086 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize); 3087 3088 SCTP_INP_WLOCK(inp); 3089 if (events->sctp_data_io_event) { 3090 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3091 } else { 3092 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3093 } 3094 3095 if (events->sctp_association_event) { 3096 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3097 } else { 3098 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3099 } 3100 3101 if (events->sctp_address_event) { 3102 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3103 } else { 3104 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3105 } 3106 3107 if (events->sctp_send_failure_event) { 3108 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3109 } else { 3110 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3111 } 3112 3113 if (events->sctp_peer_error_event) { 3114 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3115 } else { 3116 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3117 } 3118 3119 if (events->sctp_shutdown_event) { 3120 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3121 } else { 3122 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3123 } 3124 3125 if (events->sctp_partial_delivery_event) { 3126 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3127 } else { 3128 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3129 } 3130 3131 if (events->sctp_adaptation_layer_event) { 3132 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3133 } else { 3134 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3135 } 3136 3137 if (events->sctp_authentication_event) { 3138 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3139 } else { 3140 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3141 } 3142 3143 if (events->sctp_stream_reset_events) { 3144 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3145 } else { 3146 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3147 } 3148 SCTP_INP_WUNLOCK(inp); 3149 } 3150 break; 3151 3152 case SCTP_ADAPTATION_LAYER: 3153 { 3154 struct sctp_setadaptation *adap_bits; 3155 3156 SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize); 3157 SCTP_INP_WLOCK(inp); 3158 inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind; 3159 SCTP_INP_WUNLOCK(inp); 3160 } 3161 break; 3162#ifdef SCTP_DEBUG 3163 case SCTP_SET_INITIAL_DBG_SEQ: 3164 { 3165 uint32_t *vvv; 3166 3167 SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize); 3168 SCTP_INP_WLOCK(inp); 3169 inp->sctp_ep.initial_sequence_debug = *vvv; 3170 SCTP_INP_WUNLOCK(inp); 3171 } 3172 break; 3173#endif 3174 case SCTP_DEFAULT_SEND_PARAM: 3175 { 3176 struct sctp_sndrcvinfo *s_info; 3177 3178 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize); 3179 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 3180 3181 if (stcb) { 3182 if (s_info->sinfo_stream <= stcb->asoc.streamoutcnt) { 3183 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send))); 3184 } else { 3185 error = EINVAL; 3186 } 3187 SCTP_TCB_UNLOCK(stcb); 3188 } else { 3189 SCTP_INP_WLOCK(inp); 3190 memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send))); 3191 SCTP_INP_WUNLOCK(inp); 3192 } 3193 } 3194 break; 3195 case SCTP_PEER_ADDR_PARAMS: 3196 /* Applys to the specific association */ 3197 { 3198 struct sctp_paddrparams *paddrp; 3199 struct sctp_nets *net; 3200 3201 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize); 3202 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 3203 net = NULL; 3204 if (stcb) { 3205 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 3206 } else { 3207 /* 3208 * We increment here since 3209 * sctp_findassociation_ep_addr() wil do a 3210 * decrement if it finds the stcb as long as 3211 * the locked tcb (last argument) is NOT a 3212 * TCB.. aka NULL. 3213 */ 3214 SCTP_INP_INCR_REF(inp); 3215 stcb = sctp_findassociation_ep_addr(&inp, 3216 (struct sockaddr *)&paddrp->spp_address, 3217 &net, NULL, NULL); 3218 if (stcb == NULL) { 3219 SCTP_INP_DECR_REF(inp); 3220 } 3221 } 3222 /* sanity checks */ 3223 if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) { 3224 if (stcb) 3225 SCTP_TCB_UNLOCK(stcb); 3226 return (EINVAL); 3227 } 3228 if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) { 3229 if (stcb) 3230 SCTP_TCB_UNLOCK(stcb); 3231 return (EINVAL); 3232 } 3233 if (stcb) { 3234 /************************TCB SPECIFIC SET ******************/ 3235 /* 3236 * do we change the timer for HB, we run 3237 * only one? 3238 */ 3239 int ovh = 0; 3240 3241 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3242 ovh = SCTP_MED_OVERHEAD; 3243 } else { 3244 ovh = SCTP_MED_V4_OVERHEAD; 3245 } 3246 3247 if (paddrp->spp_hbinterval) 3248 stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval; 3249 else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 3250 stcb->asoc.heart_beat_delay = 0; 3251 3252 /* network sets ? */ 3253 if (net) { 3254 /************************NET SPECIFIC SET ******************/ 3255 if (paddrp->spp_flags & SPP_HB_DEMAND) { 3256 /* on demand HB */ 3257 if (sctp_send_hb(stcb, 1, net) < 0) { 3258 /* asoc destroyed */ 3259 error = EINVAL; 3260 break; 3261 } 3262 } 3263 if (paddrp->spp_flags & SPP_HB_DISABLE) { 3264 net->dest_state |= SCTP_ADDR_NOHB; 3265 } 3266 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3267 net->dest_state &= ~SCTP_ADDR_NOHB; 3268 } 3269 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3270 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3271 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3272 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3273 } 3274 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3275 net->mtu = paddrp->spp_pathmtu + ovh; 3276 if (net->mtu < stcb->asoc.smallest_mtu) { 3277#ifdef SCTP_PRINT_FOR_B_AND_M 3278 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n", 3279 net->mtu); 3280#endif 3281 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3282 } 3283 } 3284 } 3285 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3286 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3287 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3288 } 3289 } 3290 if (paddrp->spp_pathmaxrxt) 3291 net->failure_threshold = paddrp->spp_pathmaxrxt; 3292#ifdef INET 3293 if (paddrp->spp_flags & SPP_IPV4_TOS) { 3294 if (net->ro._l_addr.sin.sin_family == AF_INET) { 3295 net->tos_flowlabel = paddrp->spp_ipv4_tos & 0x000000fc; 3296 } 3297 } 3298#endif 3299#ifdef INET6 3300 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) { 3301 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 3302 net->tos_flowlabel = paddrp->spp_ipv6_flowlabel; 3303 } 3304 } 3305#endif 3306 } else { 3307 /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/ 3308 if (paddrp->spp_pathmaxrxt) 3309 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt; 3310 3311 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3312 /* Turn back on the timer */ 3313 stcb->asoc.hb_is_disabled = 0; 3314 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 3315 } 3316 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3317 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3318 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3319 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3320 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3321 } 3322 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3323 net->mtu = paddrp->spp_pathmtu + ovh; 3324 if (net->mtu < stcb->asoc.smallest_mtu) { 3325#ifdef SCTP_PRINT_FOR_B_AND_M 3326 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n", 3327 net->mtu); 3328#endif 3329 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3330 } 3331 } 3332 } 3333 } 3334 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3335 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3336 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3337 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3338 } 3339 } 3340 } 3341 if (paddrp->spp_flags & SPP_HB_DISABLE) { 3342 int cnt_of_unconf = 0; 3343 struct sctp_nets *lnet; 3344 3345 stcb->asoc.hb_is_disabled = 1; 3346 TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) { 3347 if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) { 3348 cnt_of_unconf++; 3349 } 3350 } 3351 /* 3352 * stop the timer ONLY if we 3353 * have no unconfirmed 3354 * addresses 3355 */ 3356 if (cnt_of_unconf == 0) { 3357 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3358 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, 3359 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11); 3360 } 3361 } 3362 } 3363 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3364 /* start up the timer. */ 3365 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3366 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 3367 } 3368 } 3369#ifdef INET 3370 if (paddrp->spp_flags & SPP_IPV4_TOS) 3371 stcb->asoc.default_tos = paddrp->spp_ipv4_tos & 0x000000fc; 3372#endif 3373#ifdef INET6 3374 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) 3375 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel; 3376#endif 3377 3378 } 3379 SCTP_TCB_UNLOCK(stcb); 3380 } else { 3381 /************************NO TCB, SET TO default stuff ******************/ 3382 SCTP_INP_WLOCK(inp); 3383 /* 3384 * For the TOS/FLOWLABEL stuff you set it 3385 * with the options on the socket 3386 */ 3387 if (paddrp->spp_pathmaxrxt) { 3388 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt; 3389 } 3390 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 3391 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0; 3392 else if (paddrp->spp_hbinterval) { 3393 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL) 3394 paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL; 3395 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval); 3396 } 3397 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3398 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 3399 3400 } else if (paddrp->spp_flags & SPP_HB_DISABLE) { 3401 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 3402 } 3403 SCTP_INP_WUNLOCK(inp); 3404 } 3405 } 3406 break; 3407 case SCTP_RTOINFO: 3408 { 3409 struct sctp_rtoinfo *srto; 3410 uint32_t new_init, new_min, new_max; 3411 3412 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize); 3413 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 3414 3415 if (stcb) { 3416 if (srto->srto_initial) 3417 new_init = srto->srto_initial; 3418 else 3419 new_init = stcb->asoc.initial_rto; 3420 if (srto->srto_max) 3421 new_max = srto->srto_max; 3422 else 3423 new_max = stcb->asoc.maxrto; 3424 if (srto->srto_min) 3425 new_min = srto->srto_min; 3426 else 3427 new_min = stcb->asoc.minrto; 3428 if ((new_min <= new_init) && (new_init <= new_max)) { 3429 stcb->asoc.initial_rto = new_init; 3430 stcb->asoc.maxrto = new_max; 3431 stcb->asoc.minrto = new_min; 3432 } else { 3433 error = EDOM; 3434 } 3435 SCTP_TCB_UNLOCK(stcb); 3436 } else { 3437 SCTP_INP_WLOCK(inp); 3438 if (srto->srto_initial) 3439 new_init = srto->srto_initial; 3440 else 3441 new_init = inp->sctp_ep.initial_rto; 3442 if (srto->srto_max) 3443 new_max = srto->srto_max; 3444 else 3445 new_max = inp->sctp_ep.sctp_maxrto; 3446 if (srto->srto_min) 3447 new_min = srto->srto_min; 3448 else 3449 new_min = inp->sctp_ep.sctp_minrto; 3450 if ((new_min <= new_init) && (new_init <= new_max)) { 3451 inp->sctp_ep.initial_rto = new_init; 3452 inp->sctp_ep.sctp_maxrto = new_max; 3453 inp->sctp_ep.sctp_minrto = new_min; 3454 } else { 3455 error = EDOM; 3456 } 3457 SCTP_INP_WUNLOCK(inp); 3458 } 3459 } 3460 break; 3461 case SCTP_ASSOCINFO: 3462 { 3463 struct sctp_assocparams *sasoc; 3464 3465 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize); 3466 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 3467 if (sasoc->sasoc_cookie_life) { 3468 /* boundary check the cookie life */ 3469 if (sasoc->sasoc_cookie_life < 1000) 3470 sasoc->sasoc_cookie_life = 1000; 3471 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) { 3472 sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE; 3473 } 3474 } 3475 if (stcb) { 3476 if (sasoc->sasoc_asocmaxrxt) 3477 stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt; 3478 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 3479 sasoc->sasoc_peer_rwnd = 0; 3480 sasoc->sasoc_local_rwnd = 0; 3481 if (sasoc->sasoc_cookie_life) { 3482 stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 3483 } 3484 SCTP_TCB_UNLOCK(stcb); 3485 } else { 3486 SCTP_INP_WLOCK(inp); 3487 if (sasoc->sasoc_asocmaxrxt) 3488 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt; 3489 sasoc->sasoc_number_peer_destinations = 0; 3490 sasoc->sasoc_peer_rwnd = 0; 3491 sasoc->sasoc_local_rwnd = 0; 3492 if (sasoc->sasoc_cookie_life) { 3493 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 3494 } 3495 SCTP_INP_WUNLOCK(inp); 3496 } 3497 } 3498 break; 3499 case SCTP_INITMSG: 3500 { 3501 struct sctp_initmsg *sinit; 3502 3503 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize); 3504 SCTP_INP_WLOCK(inp); 3505 if (sinit->sinit_num_ostreams) 3506 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams; 3507 3508 if (sinit->sinit_max_instreams) 3509 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams; 3510 3511 if (sinit->sinit_max_attempts) 3512 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts; 3513 3514 if (sinit->sinit_max_init_timeo) 3515 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo; 3516 SCTP_INP_WUNLOCK(inp); 3517 } 3518 break; 3519 case SCTP_PRIMARY_ADDR: 3520 { 3521 struct sctp_setprim *spa; 3522 struct sctp_nets *net, *lnet; 3523 3524 SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize); 3525 SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id); 3526 3527 net = NULL; 3528 if (stcb) { 3529 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr); 3530 } else { 3531 /* 3532 * We increment here since 3533 * sctp_findassociation_ep_addr() wil do a 3534 * decrement if it finds the stcb as long as 3535 * the locked tcb (last argument) is NOT a 3536 * TCB.. aka NULL. 3537 */ 3538 SCTP_INP_INCR_REF(inp); 3539 stcb = sctp_findassociation_ep_addr(&inp, 3540 (struct sockaddr *)&spa->ssp_addr, 3541 &net, NULL, NULL); 3542 if (stcb == NULL) { 3543 SCTP_INP_DECR_REF(inp); 3544 } 3545 } 3546 3547 if ((stcb) && (net)) { 3548 if ((net != stcb->asoc.primary_destination) && 3549 (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) { 3550 /* Ok we need to set it */ 3551 lnet = stcb->asoc.primary_destination; 3552 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) { 3553 if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) { 3554 net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH; 3555 } 3556 net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY; 3557 } 3558 } 3559 } else { 3560 error = EINVAL; 3561 } 3562 if (stcb) { 3563 SCTP_TCB_UNLOCK(stcb); 3564 } 3565 } 3566 break; 3567 case SCTP_SET_DYNAMIC_PRIMARY: 3568 { 3569 union sctp_sockstore *ss; 3570 3571 error = priv_check(curthread, 3572 PRIV_NETINET_RESERVEDPORT); 3573 if (error) 3574 break; 3575 3576 SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize); 3577 /* SUPER USER CHECK? */ 3578 error = sctp_dynamic_set_primary(&ss->sa, vrf_id); 3579 } 3580 break; 3581 case SCTP_SET_PEER_PRIMARY_ADDR: 3582 { 3583 struct sctp_setpeerprim *sspp; 3584 3585 SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize); 3586 SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id); 3587 if (stcb != NULL) { 3588 struct sctp_ifa *ifa; 3589 3590 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr, 3591 stcb->asoc.vrf_id, 0); 3592 if (ifa == NULL) { 3593 error = EINVAL; 3594 goto out_of_it; 3595 } 3596 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 3597 /* 3598 * Must validate the ifa found is in 3599 * our ep 3600 */ 3601 struct sctp_laddr *laddr; 3602 int found = 0; 3603 3604 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 3605 if (laddr->ifa == NULL) { 3606 SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n", 3607 __FUNCTION__); 3608 continue; 3609 } 3610 if (laddr->ifa == ifa) { 3611 found = 1; 3612 break; 3613 } 3614 } 3615 if (!found) { 3616 error = EINVAL; 3617 goto out_of_it; 3618 } 3619 } 3620 if (sctp_set_primary_ip_address_sa(stcb, 3621 (struct sockaddr *)&sspp->sspp_addr) != 0) { 3622 error = EINVAL; 3623 } 3624 out_of_it: 3625 SCTP_TCB_UNLOCK(stcb); 3626 } else { 3627 error = EINVAL; 3628 } 3629 3630 } 3631 break; 3632 case SCTP_BINDX_ADD_ADDR: 3633 { 3634 struct sctp_getaddresses *addrs; 3635 size_t sz; 3636 struct thread *td; 3637 int prison = 0; 3638 3639 td = (struct thread *)p; 3640 if (jailed(td->td_ucred)) { 3641 prison = 1; 3642 } 3643 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, 3644 optsize); 3645 if (addrs->addr->sa_family == AF_INET) { 3646 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 3647 if (optsize < sz) { 3648 error = EINVAL; 3649 break; 3650 } 3651 if (prison && prison_ip(td->td_ucred, 0, &(((struct sockaddr_in *)(addrs->addr))->sin_addr.s_addr))) { 3652 error = EADDRNOTAVAIL; 3653 } 3654 } else if (addrs->addr->sa_family == AF_INET6) { 3655 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 3656 if (optsize < sz) { 3657 error = EINVAL; 3658 break; 3659 } 3660 /* JAIL XXXX Add else here for V6 */ 3661 } 3662 sctp_bindx_add_address(so, inp, addrs->addr, 3663 addrs->sget_assoc_id, vrf_id, 3664 &error, p); 3665 } 3666 break; 3667 case SCTP_BINDX_REM_ADDR: 3668 { 3669 struct sctp_getaddresses *addrs; 3670 size_t sz; 3671 struct thread *td; 3672 int prison = 0; 3673 3674 td = (struct thread *)p; 3675 if (jailed(td->td_ucred)) { 3676 prison = 1; 3677 } 3678 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize); 3679 if (addrs->addr->sa_family == AF_INET) { 3680 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 3681 if (optsize < sz) { 3682 error = EINVAL; 3683 break; 3684 } 3685 if (prison && prison_ip(td->td_ucred, 0, &(((struct sockaddr_in *)(addrs->addr))->sin_addr.s_addr))) { 3686 error = EADDRNOTAVAIL; 3687 } 3688 } else if (addrs->addr->sa_family == AF_INET6) { 3689 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 3690 if (optsize < sz) { 3691 error = EINVAL; 3692 break; 3693 } 3694 /* JAIL XXXX Add else here for V6 */ 3695 } 3696 sctp_bindx_delete_address(so, inp, addrs->addr, 3697 addrs->sget_assoc_id, vrf_id, 3698 &error); 3699 } 3700 break; 3701 default: 3702 error = ENOPROTOOPT; 3703 break; 3704 } /* end switch (opt) */ 3705 return (error); 3706} 3707 3708 3709int 3710sctp_ctloutput(struct socket *so, struct sockopt *sopt) 3711{ 3712 void *optval = NULL; 3713 size_t optsize = 0; 3714 struct sctp_inpcb *inp; 3715 void *p; 3716 int error = 0; 3717 3718 inp = (struct sctp_inpcb *)so->so_pcb; 3719 if (inp == 0) { 3720 /* I made the same as TCP since we are not setup? */ 3721 return (ECONNRESET); 3722 } 3723 if (sopt->sopt_level != IPPROTO_SCTP) { 3724 /* wrong proto level... send back up to IP */ 3725#ifdef INET6 3726 if (INP_CHECK_SOCKAF(so, AF_INET6)) 3727 error = ip6_ctloutput(so, sopt); 3728 else 3729#endif /* INET6 */ 3730 error = ip_ctloutput(so, sopt); 3731 return (error); 3732 } 3733 optsize = sopt->sopt_valsize; 3734 if (optsize) { 3735 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT); 3736 if (optval == NULL) { 3737 return (ENOBUFS); 3738 } 3739 error = sooptcopyin(sopt, optval, optsize, optsize); 3740 if (error) { 3741 SCTP_FREE(optval, SCTP_M_SOCKOPT); 3742 goto out; 3743 } 3744 } 3745 p = (void *)sopt->sopt_td; 3746 if (sopt->sopt_dir == SOPT_SET) { 3747 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p); 3748 } else if (sopt->sopt_dir == SOPT_GET) { 3749 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p); 3750 } else { 3751 error = EINVAL; 3752 } 3753 if ((error == 0) && (optval != NULL)) { 3754 error = sooptcopyout(sopt, optval, optsize); 3755 SCTP_FREE(optval, SCTP_M_SOCKOPT); 3756 } else if (optval != NULL) { 3757 SCTP_FREE(optval, SCTP_M_SOCKOPT); 3758 } 3759out: 3760 return (error); 3761} 3762 3763 3764static int 3765sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p) 3766{ 3767 int error = 0; 3768 int create_lock_on = 0; 3769 uint32_t vrf_id; 3770 struct sctp_inpcb *inp; 3771 struct sctp_tcb *stcb = NULL; 3772 3773 inp = (struct sctp_inpcb *)so->so_pcb; 3774 if (inp == 0) { 3775 /* I made the same as TCP since we are not setup? */ 3776 return (ECONNRESET); 3777 } 3778 if (addr == NULL) 3779 return EINVAL; 3780 3781 if ((addr->sa_family == AF_INET6) && (addr->sa_len != sizeof(struct sockaddr_in6))) { 3782 return (EINVAL); 3783 } 3784 if ((addr->sa_family == AF_INET) && (addr->sa_len != sizeof(struct sockaddr_in))) { 3785 return (EINVAL); 3786 } 3787 SCTP_ASOC_CREATE_LOCK(inp); 3788 create_lock_on = 1; 3789 3790 SCTP_INP_INCR_REF(inp); 3791 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 3792 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 3793 /* Should I really unlock ? */ 3794 error = EFAULT; 3795 goto out_now; 3796 } 3797#ifdef INET6 3798 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 3799 (addr->sa_family == AF_INET6)) { 3800 error = EINVAL; 3801 goto out_now; 3802 } 3803#endif /* INET6 */ 3804 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 3805 SCTP_PCB_FLAGS_UNBOUND) { 3806 /* Bind a ephemeral port */ 3807 error = sctp_inpcb_bind(so, NULL, NULL, p); 3808 if (error) { 3809 goto out_now; 3810 } 3811 } 3812 /* Now do we connect? */ 3813 if (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) { 3814 error = EINVAL; 3815 goto out_now; 3816 } 3817 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 3818 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 3819 /* We are already connected AND the TCP model */ 3820 error = EADDRINUSE; 3821 goto out_now; 3822 } 3823 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 3824 SCTP_INP_RLOCK(inp); 3825 stcb = LIST_FIRST(&inp->sctp_asoc_list); 3826 SCTP_INP_RUNLOCK(inp); 3827 } else { 3828 /* 3829 * We increment here since sctp_findassociation_ep_addr() 3830 * wil do a decrement if it finds the stcb as long as the 3831 * locked tcb (last argument) is NOT a TCB.. aka NULL. 3832 */ 3833 SCTP_INP_INCR_REF(inp); 3834 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL); 3835 if (stcb == NULL) { 3836 SCTP_INP_DECR_REF(inp); 3837 } else { 3838 SCTP_TCB_LOCK(stcb); 3839 } 3840 } 3841 if (stcb != NULL) { 3842 /* Already have or am bring up an association */ 3843 error = EALREADY; 3844 goto out_now; 3845 } 3846 vrf_id = inp->def_vrf_id; 3847 /* We are GOOD to go */ 3848 stcb = sctp_aloc_assoc(inp, addr, 1, &error, 0, vrf_id, p); 3849 if (stcb == NULL) { 3850 /* Gak! no memory */ 3851 goto out_now; 3852 } 3853 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 3854 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 3855 /* Set the connected flag so we can queue data */ 3856 soisconnecting(so); 3857 } 3858 stcb->asoc.state = SCTP_STATE_COOKIE_WAIT; 3859 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 3860 3861 /* initialize authentication parameters for the assoc */ 3862 sctp_initialize_auth_params(inp, stcb); 3863 3864 sctp_send_initiate(inp, stcb); 3865 SCTP_TCB_UNLOCK(stcb); 3866out_now: 3867 if (create_lock_on) { 3868 SCTP_ASOC_CREATE_UNLOCK(inp); 3869 } 3870 SCTP_INP_DECR_REF(inp); 3871 return error; 3872} 3873 3874int 3875sctp_listen(struct socket *so, int backlog, struct thread *p) 3876{ 3877 /* 3878 * Note this module depends on the protocol processing being called 3879 * AFTER any socket level flags and backlog are applied to the 3880 * socket. The traditional way that the socket flags are applied is 3881 * AFTER protocol processing. We have made a change to the 3882 * sys/kern/uipc_socket.c module to reverse this but this MUST be in 3883 * place if the socket API for SCTP is to work properly. 3884 */ 3885 3886 int error = 0; 3887 struct sctp_inpcb *inp; 3888 3889 inp = (struct sctp_inpcb *)so->so_pcb; 3890 if (inp == 0) { 3891 /* I made the same as TCP since we are not setup? */ 3892 return (ECONNRESET); 3893 } 3894 SCTP_INP_RLOCK(inp); 3895#ifdef SCTP_LOCK_LOGGING 3896 if (sctp_logging_level & SCTP_LOCK_LOGGING_ENABLE) { 3897 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK); 3898 } 3899#endif 3900 SOCK_LOCK(so); 3901 error = solisten_proto_check(so); 3902 if (error) { 3903 SOCK_UNLOCK(so); 3904 SCTP_INP_RUNLOCK(inp); 3905 return (error); 3906 } 3907 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 3908 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 3909 /* We are already connected AND the TCP model */ 3910 SCTP_INP_RUNLOCK(inp); 3911 SOCK_UNLOCK(so); 3912 return (EADDRINUSE); 3913 } 3914 if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) { 3915 /* We must do a bind. */ 3916 SOCK_UNLOCK(so); 3917 SCTP_INP_RUNLOCK(inp); 3918 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) { 3919 /* bind error, probably perm */ 3920 return (error); 3921 } 3922 SOCK_LOCK(so); 3923 } else { 3924 SCTP_INP_RUNLOCK(inp); 3925 } 3926 /* It appears for 7.0 and on, we must always call this. */ 3927 solisten_proto(so, backlog); 3928 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 3929 /* remove the ACCEPTCONN flag for one-to-many sockets */ 3930 so->so_options &= ~SO_ACCEPTCONN; 3931 } 3932 if (backlog == 0) { 3933 /* turning off listen */ 3934 so->so_options &= ~SO_ACCEPTCONN; 3935 } 3936 SOCK_UNLOCK(so); 3937 return (error); 3938} 3939 3940static int sctp_defered_wakeup_cnt = 0; 3941 3942int 3943sctp_accept(struct socket *so, struct sockaddr **addr) 3944{ 3945 struct sctp_tcb *stcb; 3946 struct sctp_inpcb *inp; 3947 union sctp_sockstore store; 3948 3949 int error; 3950 3951 inp = (struct sctp_inpcb *)so->so_pcb; 3952 3953 if (inp == 0) { 3954 return (ECONNRESET); 3955 } 3956 SCTP_INP_RLOCK(inp); 3957 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 3958 SCTP_INP_RUNLOCK(inp); 3959 return (ENOTSUP); 3960 } 3961 if (so->so_state & SS_ISDISCONNECTED) { 3962 SCTP_INP_RUNLOCK(inp); 3963 return (ECONNABORTED); 3964 } 3965 stcb = LIST_FIRST(&inp->sctp_asoc_list); 3966 if (stcb == NULL) { 3967 SCTP_INP_RUNLOCK(inp); 3968 return (ECONNRESET); 3969 } 3970 SCTP_TCB_LOCK(stcb); 3971 SCTP_INP_RUNLOCK(inp); 3972 store = stcb->asoc.primary_destination->ro._l_addr; 3973 SCTP_TCB_UNLOCK(stcb); 3974 if (store.sa.sa_family == AF_INET) { 3975 struct sockaddr_in *sin; 3976 3977 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 3978 sin->sin_family = AF_INET; 3979 sin->sin_len = sizeof(*sin); 3980 sin->sin_port = ((struct sockaddr_in *)&store)->sin_port; 3981 sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr; 3982 *addr = (struct sockaddr *)sin; 3983 } else { 3984 struct sockaddr_in6 *sin6; 3985 3986 SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6); 3987 sin6->sin6_family = AF_INET6; 3988 sin6->sin6_len = sizeof(*sin6); 3989 sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port; 3990 3991 sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr; 3992 if ((error = sa6_recoverscope(sin6)) != 0) { 3993 SCTP_FREE_SONAME(sin6); 3994 return (error); 3995 } 3996 *addr = (struct sockaddr *)sin6; 3997 } 3998 /* Wake any delayed sleep action */ 3999 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { 4000 SCTP_INP_WLOCK(inp); 4001 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE; 4002 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) { 4003 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT; 4004 SCTP_INP_WUNLOCK(inp); 4005 SOCKBUF_LOCK(&inp->sctp_socket->so_snd); 4006 if (sowriteable(inp->sctp_socket)) { 4007 sowwakeup_locked(inp->sctp_socket); 4008 } else { 4009 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd); 4010 } 4011 SCTP_INP_WLOCK(inp); 4012 } 4013 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) { 4014 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT; 4015 SCTP_INP_WUNLOCK(inp); 4016 SOCKBUF_LOCK(&inp->sctp_socket->so_rcv); 4017 if (soreadable(inp->sctp_socket)) { 4018 sctp_defered_wakeup_cnt++; 4019 sorwakeup_locked(inp->sctp_socket); 4020 } else { 4021 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv); 4022 } 4023 SCTP_INP_WLOCK(inp); 4024 } 4025 SCTP_INP_WUNLOCK(inp); 4026 } 4027 return (0); 4028} 4029 4030int 4031sctp_ingetaddr(struct socket *so, struct sockaddr **addr) 4032{ 4033 struct sockaddr_in *sin; 4034 uint32_t vrf_id; 4035 struct sctp_inpcb *inp; 4036 struct sctp_ifa *sctp_ifa; 4037 4038 /* 4039 * Do the malloc first in case it blocks. 4040 */ 4041 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4042 sin->sin_family = AF_INET; 4043 sin->sin_len = sizeof(*sin); 4044 inp = (struct sctp_inpcb *)so->so_pcb; 4045 if (!inp) { 4046 SCTP_FREE_SONAME(sin); 4047 return ECONNRESET; 4048 } 4049 SCTP_INP_RLOCK(inp); 4050 sin->sin_port = inp->sctp_lport; 4051 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 4052 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4053 struct sctp_tcb *stcb; 4054 struct sockaddr_in *sin_a; 4055 struct sctp_nets *net; 4056 int fnd; 4057 4058 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4059 if (stcb == NULL) { 4060 goto notConn; 4061 } 4062 fnd = 0; 4063 sin_a = NULL; 4064 SCTP_TCB_LOCK(stcb); 4065 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4066 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 4067 if (sin_a == NULL) 4068 /* this will make coverity happy */ 4069 continue; 4070 4071 if (sin_a->sin_family == AF_INET) { 4072 fnd = 1; 4073 break; 4074 } 4075 } 4076 if ((!fnd) || (sin_a == NULL)) { 4077 /* punt */ 4078 SCTP_TCB_UNLOCK(stcb); 4079 goto notConn; 4080 } 4081 vrf_id = inp->def_vrf_id; 4082 sctp_ifa = sctp_source_address_selection(inp, 4083 stcb, 4084 (sctp_route_t *) & net->ro, 4085 net, 0, vrf_id); 4086 if (sctp_ifa) { 4087 sin->sin_addr = sctp_ifa->address.sin.sin_addr; 4088 sctp_free_ifa(sctp_ifa); 4089 } 4090 SCTP_TCB_UNLOCK(stcb); 4091 } else { 4092 /* For the bound all case you get back 0 */ 4093 notConn: 4094 sin->sin_addr.s_addr = 0; 4095 } 4096 4097 } else { 4098 /* Take the first IPv4 address in the list */ 4099 struct sctp_laddr *laddr; 4100 int fnd = 0; 4101 4102 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4103 if (laddr->ifa->address.sa.sa_family == AF_INET) { 4104 struct sockaddr_in *sin_a; 4105 4106 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa; 4107 sin->sin_addr = sin_a->sin_addr; 4108 fnd = 1; 4109 break; 4110 } 4111 } 4112 if (!fnd) { 4113 SCTP_FREE_SONAME(sin); 4114 SCTP_INP_RUNLOCK(inp); 4115 return ENOENT; 4116 } 4117 } 4118 SCTP_INP_RUNLOCK(inp); 4119 (*addr) = (struct sockaddr *)sin; 4120 return (0); 4121} 4122 4123int 4124sctp_peeraddr(struct socket *so, struct sockaddr **addr) 4125{ 4126 struct sockaddr_in *sin = (struct sockaddr_in *)*addr; 4127 int fnd; 4128 struct sockaddr_in *sin_a; 4129 struct sctp_inpcb *inp; 4130 struct sctp_tcb *stcb; 4131 struct sctp_nets *net; 4132 4133 /* Do the malloc first in case it blocks. */ 4134 inp = (struct sctp_inpcb *)so->so_pcb; 4135 if ((inp == NULL) || 4136 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { 4137 /* UDP type and listeners will drop out here */ 4138 return (ENOTCONN); 4139 } 4140 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4141 sin->sin_family = AF_INET; 4142 sin->sin_len = sizeof(*sin); 4143 4144 /* We must recapture incase we blocked */ 4145 inp = (struct sctp_inpcb *)so->so_pcb; 4146 if (!inp) { 4147 SCTP_FREE_SONAME(sin); 4148 return ECONNRESET; 4149 } 4150 SCTP_INP_RLOCK(inp); 4151 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4152 if (stcb) { 4153 SCTP_TCB_LOCK(stcb); 4154 } 4155 SCTP_INP_RUNLOCK(inp); 4156 if (stcb == NULL) { 4157 SCTP_FREE_SONAME(sin); 4158 return ECONNRESET; 4159 } 4160 fnd = 0; 4161 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4162 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 4163 if (sin_a->sin_family == AF_INET) { 4164 fnd = 1; 4165 sin->sin_port = stcb->rport; 4166 sin->sin_addr = sin_a->sin_addr; 4167 break; 4168 } 4169 } 4170 SCTP_TCB_UNLOCK(stcb); 4171 if (!fnd) { 4172 /* No IPv4 address */ 4173 SCTP_FREE_SONAME(sin); 4174 return ENOENT; 4175 } 4176 (*addr) = (struct sockaddr *)sin; 4177 return (0); 4178} 4179 4180struct pr_usrreqs sctp_usrreqs = { 4181 .pru_abort = sctp_abort, 4182 .pru_accept = sctp_accept, 4183 .pru_attach = sctp_attach, 4184 .pru_bind = sctp_bind, 4185 .pru_connect = sctp_connect, 4186 .pru_control = in_control, 4187 .pru_close = sctp_close, 4188 .pru_detach = sctp_close, 4189 .pru_sopoll = sopoll_generic, 4190 .pru_disconnect = sctp_disconnect, 4191 .pru_listen = sctp_listen, 4192 .pru_peeraddr = sctp_peeraddr, 4193 .pru_send = sctp_sendm, 4194 .pru_shutdown = sctp_shutdown, 4195 .pru_sockaddr = sctp_ingetaddr, 4196 .pru_sosend = sctp_sosend, 4197 .pru_soreceive = sctp_soreceive 4198}; 4199