1 /*- 2 * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * a) Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * 10 * b) Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the distribution. 13 * 14 * c) Neither the name of Cisco Systems, Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $ */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 #include <netinet/sctp_os.h> 36 #include <sys/proc.h> 37 #include <netinet/sctp_pcb.h> 38 #include <netinet/sctp_header.h> 39 #include <netinet/sctp_var.h> 40 #if defined(INET6) 41 #endif 42 #include <netinet/sctp_sysctl.h> 43 #include <netinet/sctp_output.h> 44 #include <netinet/sctp_uio.h> 45 #include <netinet/sctp_asconf.h> 46 #include <netinet/sctputil.h> 47 #include <netinet/sctp_indata.h> 48 #include <netinet/sctp_timer.h> 49 #include <netinet/sctp_auth.h> 50 #include <netinet/sctp_bsd_addr.h> 51 #include <netinet/sctp_cc_functions.h> 52 #include <netinet/udp.h> 53 54 55 56 57 void 58 sctp_init(void) 59 { 60 u_long sb_max_adj; 61 62 bzero(&SCTP_BASE_STATS, sizeof(struct sctpstat)); 63 64 /* Initialize and modify the sysctled variables */ 65 sctp_init_sysctls(); 66 if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE) 67 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8); 68 /* 69 * Allow a user to take no more than 1/2 the number of clusters or 70 * the SB_MAX whichever is smaller for the send window. 71 */ 72 sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES)); 73 SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj, 74 (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT)); 75 /* 76 * Now for the recv window, should we take the same amount? or 77 * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For 78 * now I will just copy. 79 */ 80 SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace); 81 82 SCTP_BASE_VAR(first_time) = 0; 83 SCTP_BASE_VAR(sctp_pcb_initialized) = 0; 84 sctp_pcb_init(); 85 #if defined(SCTP_PACKET_LOGGING) 86 SCTP_BASE_VAR(packet_log_writers) = 0; 87 SCTP_BASE_VAR(packet_log_end) = 0; 88 bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE); 89 #endif 90 91 92 } 93 94 void 95 sctp_finish(void) 96 { 97 sctp_pcb_finish(); 98 } 99 100 101 102 void 103 sctp_pathmtu_adjustment(struct sctp_inpcb *inp, 104 struct sctp_tcb *stcb, 105 struct sctp_nets *net, 106 uint16_t nxtsz) 107 { 108 struct sctp_tmit_chunk *chk; 109 uint16_t overhead; 110 111 /* Adjust that too */ 112 stcb->asoc.smallest_mtu = nxtsz; 113 /* now off to subtract IP_DF flag if needed */ 114 overhead = IP_HDR_SIZE; 115 if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) { 116 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id); 117 } 118 TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) { 119 if ((chk->send_size + overhead) > nxtsz) { 120 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 121 } 122 } 123 TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { 124 if ((chk->send_size + overhead) > nxtsz) { 125 /* 126 * For this guy we also mark for immediate resend 127 * since we sent to big of chunk 128 */ 129 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 130 if (chk->sent < SCTP_DATAGRAM_RESEND) { 131 sctp_flight_size_decrease(chk); 132 sctp_total_flight_decrease(stcb, chk); 133 } 134 if (chk->sent != SCTP_DATAGRAM_RESEND) { 135 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt); 136 } 137 chk->sent = SCTP_DATAGRAM_RESEND; 138 chk->rec.data.doing_fast_retransmit = 0; 139 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) { 140 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU, 141 chk->whoTo->flight_size, 142 chk->book_size, 143 (uintptr_t) chk->whoTo, 144 chk->rec.data.TSN_seq); 145 } 146 /* Clear any time so NO RTT is being done */ 147 chk->do_rtt = 0; 148 } 149 } 150 } 151 152 static void 153 sctp_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_nextmtu); 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 = sctp_get_prev_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 if (net->port) { 209 net->mtu -= sizeof(struct udphdr); 210 } 211 } 212 /* now what about the ep? */ 213 if (stcb->asoc.smallest_mtu > nxtsz) { 214 sctp_pathmtu_adjustment(inp, stcb, net, nxtsz); 215 } 216 if (tmr_stopped) 217 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 218 219 SCTP_TCB_UNLOCK(stcb); 220 } 221 222 223 void 224 sctp_notify(struct sctp_inpcb *inp, 225 struct ip *ip, 226 struct sctphdr *sh, 227 struct sockaddr *to, 228 struct sctp_tcb *stcb, 229 struct sctp_nets *net) 230 { 231 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 232 struct socket *so; 233 234 #endif 235 /* protection */ 236 int reason; 237 struct icmp *icmph; 238 239 240 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 241 (sh == NULL) || (to == NULL)) { 242 if (stcb) 243 SCTP_TCB_UNLOCK(stcb); 244 return; 245 } 246 /* First job is to verify the vtag matches what I would send */ 247 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 248 SCTP_TCB_UNLOCK(stcb); 249 return; 250 } 251 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 252 sizeof(struct ip))); 253 if (icmph->icmp_type != ICMP_UNREACH) { 254 /* We only care about unreachable */ 255 SCTP_TCB_UNLOCK(stcb); 256 return; 257 } 258 if ((icmph->icmp_code == ICMP_UNREACH_NET) || 259 (icmph->icmp_code == ICMP_UNREACH_HOST) || 260 (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) || 261 (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) || 262 (icmph->icmp_code == ICMP_UNREACH_ISOLATED) || 263 (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) || 264 (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) || 265 (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) { 266 267 /* 268 * Hmm reachablity problems we must examine closely. If its 269 * not reachable, we may have lost a network. Or if there is 270 * NO protocol at the other end named SCTP. well we consider 271 * it a OOTB abort. 272 */ 273 if (net->dest_state & SCTP_ADDR_REACHABLE) { 274 /* Ok that destination is NOT reachable */ 275 SCTP_PRINTF("ICMP (thresh %d/%d) takes interface %p down\n", 276 net->error_count, 277 net->failure_threshold, 278 net); 279 280 net->dest_state &= ~SCTP_ADDR_REACHABLE; 281 net->dest_state |= SCTP_ADDR_NOT_REACHABLE; 282 /* 283 * JRS 5/14/07 - If a destination is unreachable, 284 * the PF bit is turned off. This allows an 285 * unambiguous use of the PF bit for destinations 286 * that are reachable but potentially failed. If the 287 * destination is set to the unreachable state, also 288 * set the destination to the PF state. 289 */ 290 /* 291 * Add debug message here if destination is not in 292 * PF state. 293 */ 294 /* Stop any running T3 timers here? */ 295 if ((stcb->asoc.sctp_cmt_on_off > 0) && 296 (stcb->asoc.sctp_cmt_pf > 0)) { 297 net->dest_state &= ~SCTP_ADDR_PF; 298 SCTPDBG(SCTP_DEBUG_TIMER4, "Destination %p moved from PF to unreachable.\n", 299 net); 300 } 301 net->error_count = net->failure_threshold + 1; 302 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, 303 stcb, SCTP_FAILED_THRESHOLD, 304 (void *)net, SCTP_SO_NOT_LOCKED); 305 } 306 SCTP_TCB_UNLOCK(stcb); 307 } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) || 308 (icmph->icmp_code == ICMP_UNREACH_PORT)) { 309 /* 310 * Here the peer is either playing tricks on us, including 311 * an address that belongs to someone who does not support 312 * SCTP OR was a userland implementation that shutdown and 313 * now is dead. In either case treat it like a OOTB abort 314 * with no TCB 315 */ 316 reason = SCTP_PEER_FAULTY; 317 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED); 318 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 319 so = SCTP_INP_SO(inp); 320 atomic_add_int(&stcb->asoc.refcnt, 1); 321 SCTP_TCB_UNLOCK(stcb); 322 SCTP_SOCKET_LOCK(so, 1); 323 SCTP_TCB_LOCK(stcb); 324 atomic_subtract_int(&stcb->asoc.refcnt, 1); 325 #endif 326 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2); 327 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 328 SCTP_SOCKET_UNLOCK(so, 1); 329 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */ 330 #endif 331 /* no need to unlock here, since the TCB is gone */ 332 } else { 333 SCTP_TCB_UNLOCK(stcb); 334 } 335 } 336 337 void 338 sctp_ctlinput(cmd, sa, vip) 339 int cmd; 340 struct sockaddr *sa; 341 void *vip; 342 { 343 struct ip *ip = vip; 344 struct sctphdr *sh; 345 uint32_t vrf_id; 346 347 /* FIX, for non-bsd is this right? */ 348 vrf_id = SCTP_DEFAULT_VRFID; 349 if (sa->sa_family != AF_INET || 350 ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) { 351 return; 352 } 353 if (PRC_IS_REDIRECT(cmd)) { 354 ip = 0; 355 } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) { 356 return; 357 } 358 if (ip) { 359 struct sctp_inpcb *inp = NULL; 360 struct sctp_tcb *stcb = NULL; 361 struct sctp_nets *net = NULL; 362 struct sockaddr_in to, from; 363 364 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2)); 365 bzero(&to, sizeof(to)); 366 bzero(&from, sizeof(from)); 367 from.sin_family = to.sin_family = AF_INET; 368 from.sin_len = to.sin_len = sizeof(to); 369 from.sin_port = sh->src_port; 370 from.sin_addr = ip->ip_src; 371 to.sin_port = sh->dest_port; 372 to.sin_addr = ip->ip_dst; 373 374 /* 375 * 'to' holds the dest of the packet that failed to be sent. 376 * 'from' holds our local endpoint address. Thus we reverse 377 * the to and the from in the lookup. 378 */ 379 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from, 380 (struct sockaddr *)&to, 381 &inp, &net, 1, vrf_id); 382 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) { 383 if (cmd != PRC_MSGSIZE) { 384 sctp_notify(inp, ip, sh, 385 (struct sockaddr *)&to, stcb, 386 net); 387 } else { 388 /* handle possible ICMP size messages */ 389 sctp_notify_mbuf(inp, stcb, net, ip, sh); 390 } 391 } else { 392 if ((stcb == NULL) && (inp != NULL)) { 393 /* reduce ref-count */ 394 SCTP_INP_WLOCK(inp); 395 SCTP_INP_DECR_REF(inp); 396 SCTP_INP_WUNLOCK(inp); 397 } 398 if (stcb) { 399 SCTP_TCB_UNLOCK(stcb); 400 } 401 } 402 } 403 return; 404 } 405 406 static int 407 sctp_getcred(SYSCTL_HANDLER_ARGS) 408 { 409 struct xucred xuc; 410 struct sockaddr_in addrs[2]; 411 struct sctp_inpcb *inp; 412 struct sctp_nets *net; 413 struct sctp_tcb *stcb; 414 int error; 415 uint32_t vrf_id; 416 417 /* FIX, for non-bsd is this right? */ 418 vrf_id = SCTP_DEFAULT_VRFID; 419 420 error = priv_check(req->td, PRIV_NETINET_GETCRED); 421 422 if (error) 423 return (error); 424 425 error = SYSCTL_IN(req, addrs, sizeof(addrs)); 426 if (error) 427 return (error); 428 429 stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]), 430 sintosa(&addrs[1]), 431 &inp, &net, 1, vrf_id); 432 if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) { 433 if ((inp != NULL) && (stcb == NULL)) { 434 /* reduce ref-count */ 435 SCTP_INP_WLOCK(inp); 436 SCTP_INP_DECR_REF(inp); 437 goto cred_can_cont; 438 } 439 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 440 error = ENOENT; 441 goto out; 442 } 443 SCTP_TCB_UNLOCK(stcb); 444 /* 445 * We use the write lock here, only since in the error leg we need 446 * it. If we used RLOCK, then we would have to 447 * wlock/decr/unlock/rlock. Which in theory could create a hole. 448 * Better to use higher wlock. 449 */ 450 SCTP_INP_WLOCK(inp); 451 cred_can_cont: 452 error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket); 453 if (error) { 454 SCTP_INP_WUNLOCK(inp); 455 goto out; 456 } 457 cru2x(inp->sctp_socket->so_cred, &xuc); 458 SCTP_INP_WUNLOCK(inp); 459 error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred)); 460 out: 461 return (error); 462 } 463 464 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW, 465 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection"); 466 467 468 static void 469 sctp_abort(struct socket *so) 470 { 471 struct sctp_inpcb *inp; 472 uint32_t flags; 473 474 inp = (struct sctp_inpcb *)so->so_pcb; 475 if (inp == 0) { 476 return; 477 } 478 sctp_must_try_again: 479 flags = inp->sctp_flags; 480 #ifdef SCTP_LOG_CLOSING 481 sctp_log_closing(inp, NULL, 17); 482 #endif 483 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 484 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 485 #ifdef SCTP_LOG_CLOSING 486 sctp_log_closing(inp, NULL, 16); 487 #endif 488 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 489 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 490 SOCK_LOCK(so); 491 SCTP_SB_CLEAR(so->so_snd); 492 /* 493 * same for the rcv ones, they are only here for the 494 * accounting/select. 495 */ 496 SCTP_SB_CLEAR(so->so_rcv); 497 498 /* Now null out the reference, we are completely detached. */ 499 so->so_pcb = NULL; 500 SOCK_UNLOCK(so); 501 } else { 502 flags = inp->sctp_flags; 503 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 504 goto sctp_must_try_again; 505 } 506 } 507 return; 508 } 509 510 static int 511 sctp_attach(struct socket *so, int proto, struct thread *p) 512 { 513 struct sctp_inpcb *inp; 514 struct inpcb *ip_inp; 515 int error; 516 uint32_t vrf_id = SCTP_DEFAULT_VRFID; 517 518 #ifdef IPSEC 519 uint32_t flags; 520 521 #endif 522 523 inp = (struct sctp_inpcb *)so->so_pcb; 524 if (inp != 0) { 525 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 526 return EINVAL; 527 } 528 if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { 529 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace)); 530 if (error) { 531 return error; 532 } 533 } 534 error = sctp_inpcb_alloc(so, vrf_id); 535 if (error) { 536 return error; 537 } 538 inp = (struct sctp_inpcb *)so->so_pcb; 539 SCTP_INP_WLOCK(inp); 540 inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */ 541 ip_inp = &inp->ip_inp.inp; 542 ip_inp->inp_vflag |= INP_IPV4; 543 ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl); 544 #ifdef IPSEC 545 error = ipsec_init_policy(so, &ip_inp->inp_sp); 546 #ifdef SCTP_LOG_CLOSING 547 sctp_log_closing(inp, NULL, 17); 548 #endif 549 if (error != 0) { 550 try_again: 551 flags = inp->sctp_flags; 552 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 553 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 554 #ifdef SCTP_LOG_CLOSING 555 sctp_log_closing(inp, NULL, 15); 556 #endif 557 SCTP_INP_WUNLOCK(inp); 558 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 559 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 560 } else { 561 flags = inp->sctp_flags; 562 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 563 goto try_again; 564 } else { 565 SCTP_INP_WUNLOCK(inp); 566 } 567 } 568 return error; 569 } 570 #endif /* IPSEC */ 571 SCTP_INP_WUNLOCK(inp); 572 return 0; 573 } 574 575 static int 576 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p) 577 { 578 struct sctp_inpcb *inp = NULL; 579 int error; 580 581 #ifdef INET6 582 if (addr && addr->sa_family != AF_INET) { 583 /* must be a v4 address! */ 584 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 585 return EINVAL; 586 } 587 #endif /* INET6 */ 588 if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) { 589 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 590 return EINVAL; 591 } 592 inp = (struct sctp_inpcb *)so->so_pcb; 593 if (inp == 0) { 594 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 595 return EINVAL; 596 } 597 error = sctp_inpcb_bind(so, addr, NULL, p); 598 return error; 599 } 600 601 void 602 sctp_close(struct socket *so) 603 { 604 struct sctp_inpcb *inp; 605 uint32_t flags; 606 607 inp = (struct sctp_inpcb *)so->so_pcb; 608 if (inp == 0) 609 return; 610 611 /* 612 * Inform all the lower layer assoc that we are done. 613 */ 614 sctp_must_try_again: 615 flags = inp->sctp_flags; 616 #ifdef SCTP_LOG_CLOSING 617 sctp_log_closing(inp, NULL, 17); 618 #endif 619 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 620 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 621 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) || 622 (so->so_rcv.sb_cc > 0)) { 623 #ifdef SCTP_LOG_CLOSING 624 sctp_log_closing(inp, NULL, 13); 625 #endif 626 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 627 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 628 } else { 629 #ifdef SCTP_LOG_CLOSING 630 sctp_log_closing(inp, NULL, 14); 631 #endif 632 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE, 633 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 634 } 635 /* 636 * The socket is now detached, no matter what the state of 637 * the SCTP association. 638 */ 639 SOCK_LOCK(so); 640 SCTP_SB_CLEAR(so->so_snd); 641 /* 642 * same for the rcv ones, they are only here for the 643 * accounting/select. 644 */ 645 SCTP_SB_CLEAR(so->so_rcv); 646 647 /* Now null out the reference, we are completely detached. */ 648 so->so_pcb = NULL; 649 SOCK_UNLOCK(so); 650 } else { 651 flags = inp->sctp_flags; 652 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 653 goto sctp_must_try_again; 654 } 655 } 656 return; 657 } 658 659 660 int 661 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 662 struct mbuf *control, struct thread *p); 663 664 665 int 666 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 667 struct mbuf *control, struct thread *p) 668 { 669 struct sctp_inpcb *inp; 670 int error; 671 672 inp = (struct sctp_inpcb *)so->so_pcb; 673 if (inp == 0) { 674 if (control) { 675 sctp_m_freem(control); 676 control = NULL; 677 } 678 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 679 sctp_m_freem(m); 680 return EINVAL; 681 } 682 /* Got to have an to address if we are NOT a connected socket */ 683 if ((addr == NULL) && 684 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) || 685 (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE)) 686 ) { 687 goto connected_type; 688 } else if (addr == NULL) { 689 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 690 error = EDESTADDRREQ; 691 sctp_m_freem(m); 692 if (control) { 693 sctp_m_freem(control); 694 control = NULL; 695 } 696 return (error); 697 } 698 #ifdef INET6 699 if (addr->sa_family != AF_INET) { 700 /* must be a v4 address! */ 701 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 702 sctp_m_freem(m); 703 if (control) { 704 sctp_m_freem(control); 705 control = NULL; 706 } 707 error = EDESTADDRREQ; 708 return EDESTADDRREQ; 709 } 710 #endif /* INET6 */ 711 connected_type: 712 /* now what about control */ 713 if (control) { 714 if (inp->control) { 715 SCTP_PRINTF("huh? control set?\n"); 716 sctp_m_freem(inp->control); 717 inp->control = NULL; 718 } 719 inp->control = control; 720 } 721 /* Place the data */ 722 if (inp->pkt) { 723 SCTP_BUF_NEXT(inp->pkt_last) = m; 724 inp->pkt_last = m; 725 } else { 726 inp->pkt_last = inp->pkt = m; 727 } 728 if ( 729 /* FreeBSD uses a flag passed */ 730 ((flags & PRUS_MORETOCOME) == 0) 731 ) { 732 /* 733 * note with the current version this code will only be used 734 * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for 735 * re-defining sosend to use the sctp_sosend. One can 736 * optionally switch back to this code (by changing back the 737 * definitions) but this is not advisable. This code is used 738 * by FreeBSD when sending a file with sendfile() though. 739 */ 740 int ret; 741 742 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags); 743 inp->pkt = NULL; 744 inp->control = NULL; 745 return (ret); 746 } else { 747 return (0); 748 } 749 } 750 751 int 752 sctp_disconnect(struct socket *so) 753 { 754 struct sctp_inpcb *inp; 755 756 inp = (struct sctp_inpcb *)so->so_pcb; 757 if (inp == NULL) { 758 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 759 return (ENOTCONN); 760 } 761 SCTP_INP_RLOCK(inp); 762 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 763 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 764 if (LIST_EMPTY(&inp->sctp_asoc_list)) { 765 /* No connection */ 766 SCTP_INP_RUNLOCK(inp); 767 return (0); 768 } else { 769 struct sctp_association *asoc; 770 struct sctp_tcb *stcb; 771 772 stcb = LIST_FIRST(&inp->sctp_asoc_list); 773 if (stcb == NULL) { 774 SCTP_INP_RUNLOCK(inp); 775 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 776 return (EINVAL); 777 } 778 SCTP_TCB_LOCK(stcb); 779 asoc = &stcb->asoc; 780 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 781 /* We are about to be freed, out of here */ 782 SCTP_TCB_UNLOCK(stcb); 783 SCTP_INP_RUNLOCK(inp); 784 return (0); 785 } 786 if (((so->so_options & SO_LINGER) && 787 (so->so_linger == 0)) || 788 (so->so_rcv.sb_cc > 0)) { 789 if (SCTP_GET_STATE(asoc) != 790 SCTP_STATE_COOKIE_WAIT) { 791 /* Left with Data unread */ 792 struct mbuf *err; 793 794 err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA); 795 if (err) { 796 /* 797 * Fill in the user 798 * initiated abort 799 */ 800 struct sctp_paramhdr *ph; 801 802 ph = mtod(err, struct sctp_paramhdr *); 803 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr); 804 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT); 805 ph->param_length = htons(SCTP_BUF_LEN(err)); 806 } 807 #if defined(SCTP_PANIC_ON_ABORT) 808 panic("disconnect does an abort"); 809 #endif 810 sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED); 811 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 812 } 813 SCTP_INP_RUNLOCK(inp); 814 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 815 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 816 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 817 } 818 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3); 819 /* No unlock tcb assoc is gone */ 820 return (0); 821 } 822 if (TAILQ_EMPTY(&asoc->send_queue) && 823 TAILQ_EMPTY(&asoc->sent_queue) && 824 (asoc->stream_queue_cnt == 0)) { 825 /* there is nothing queued to send, so done */ 826 if (asoc->locked_on_sending) { 827 goto abort_anyway; 828 } 829 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) && 830 (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) { 831 /* only send SHUTDOWN 1st time thru */ 832 sctp_stop_timers_for_shutdown(stcb); 833 sctp_send_shutdown(stcb, 834 stcb->asoc.primary_destination); 835 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 836 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 837 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 838 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 839 } 840 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 841 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 842 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 843 stcb->sctp_ep, stcb, 844 asoc->primary_destination); 845 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 846 stcb->sctp_ep, stcb, 847 asoc->primary_destination); 848 } 849 } else { 850 /* 851 * we still got (or just got) data to send, 852 * so set SHUTDOWN_PENDING 853 */ 854 /* 855 * XXX sockets draft says that SCTP_EOF 856 * should be sent with no data. currently, 857 * we will allow user data to be sent first 858 * and move to SHUTDOWN-PENDING 859 */ 860 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 861 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 862 asoc->primary_destination); 863 if (asoc->locked_on_sending) { 864 /* Locked to send out the data */ 865 struct sctp_stream_queue_pending *sp; 866 867 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 868 if (sp == NULL) { 869 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 870 asoc->locked_on_sending->stream_no); 871 } else { 872 if ((sp->length == 0) && (sp->msg_is_complete == 0)) 873 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 874 } 875 } 876 if (TAILQ_EMPTY(&asoc->send_queue) && 877 TAILQ_EMPTY(&asoc->sent_queue) && 878 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 879 struct mbuf *op_err; 880 881 abort_anyway: 882 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 883 0, M_DONTWAIT, 1, MT_DATA); 884 if (op_err) { 885 /* 886 * Fill in the user 887 * initiated abort 888 */ 889 struct sctp_paramhdr *ph; 890 uint32_t *ippp; 891 892 SCTP_BUF_LEN(op_err) = 893 (sizeof(struct sctp_paramhdr) + sizeof(uint32_t)); 894 ph = mtod(op_err, 895 struct sctp_paramhdr *); 896 ph->param_type = htons( 897 SCTP_CAUSE_USER_INITIATED_ABT); 898 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 899 ippp = (uint32_t *) (ph + 1); 900 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4); 901 } 902 #if defined(SCTP_PANIC_ON_ABORT) 903 panic("disconnect does an abort"); 904 #endif 905 906 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4; 907 sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED); 908 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 909 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 910 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 911 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 912 } 913 SCTP_INP_RUNLOCK(inp); 914 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5); 915 return (0); 916 } else { 917 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 918 } 919 } 920 soisdisconnecting(so); 921 SCTP_TCB_UNLOCK(stcb); 922 SCTP_INP_RUNLOCK(inp); 923 return (0); 924 } 925 /* not reached */ 926 } else { 927 /* UDP model does not support this */ 928 SCTP_INP_RUNLOCK(inp); 929 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 930 return EOPNOTSUPP; 931 } 932 } 933 934 int 935 sctp_flush(struct socket *so, int how) 936 { 937 /* 938 * We will just clear out the values and let subsequent close clear 939 * out the data, if any. Note if the user did a shutdown(SHUT_RD) 940 * they will not be able to read the data, the socket will block 941 * that from happening. 942 */ 943 struct sctp_inpcb *inp; 944 945 inp = (struct sctp_inpcb *)so->so_pcb; 946 if (inp == NULL) { 947 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 948 return EINVAL; 949 } 950 SCTP_INP_RLOCK(inp); 951 /* For the 1 to many model this does nothing */ 952 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 953 SCTP_INP_RUNLOCK(inp); 954 return (0); 955 } 956 SCTP_INP_RUNLOCK(inp); 957 if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) { 958 /* 959 * First make sure the sb will be happy, we don't use these 960 * except maybe the count 961 */ 962 SCTP_INP_WLOCK(inp); 963 SCTP_INP_READ_LOCK(inp); 964 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ; 965 SCTP_INP_READ_UNLOCK(inp); 966 SCTP_INP_WUNLOCK(inp); 967 so->so_rcv.sb_cc = 0; 968 so->so_rcv.sb_mbcnt = 0; 969 so->so_rcv.sb_mb = NULL; 970 } 971 if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) { 972 /* 973 * First make sure the sb will be happy, we don't use these 974 * except maybe the count 975 */ 976 so->so_snd.sb_cc = 0; 977 so->so_snd.sb_mbcnt = 0; 978 so->so_snd.sb_mb = NULL; 979 980 } 981 return (0); 982 } 983 984 int 985 sctp_shutdown(struct socket *so) 986 { 987 struct sctp_inpcb *inp; 988 989 inp = (struct sctp_inpcb *)so->so_pcb; 990 if (inp == 0) { 991 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 992 return EINVAL; 993 } 994 SCTP_INP_RLOCK(inp); 995 /* For UDP model this is a invalid call */ 996 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 997 /* Restore the flags that the soshutdown took away. */ 998 SOCKBUF_LOCK(&so->so_rcv); 999 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; 1000 SOCKBUF_UNLOCK(&so->so_rcv); 1001 /* This proc will wakeup for read and do nothing (I hope) */ 1002 SCTP_INP_RUNLOCK(inp); 1003 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1004 return (EOPNOTSUPP); 1005 } 1006 /* 1007 * Ok if we reach here its the TCP model and it is either a SHUT_WR 1008 * or SHUT_RDWR. This means we put the shutdown flag against it. 1009 */ 1010 { 1011 struct sctp_tcb *stcb; 1012 struct sctp_association *asoc; 1013 1014 if ((so->so_state & 1015 (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) { 1016 SCTP_INP_RUNLOCK(inp); 1017 return (ENOTCONN); 1018 } 1019 socantsendmore(so); 1020 1021 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1022 if (stcb == NULL) { 1023 /* 1024 * Ok we hit the case that the shutdown call was 1025 * made after an abort or something. Nothing to do 1026 * now. 1027 */ 1028 SCTP_INP_RUNLOCK(inp); 1029 return (0); 1030 } 1031 SCTP_TCB_LOCK(stcb); 1032 asoc = &stcb->asoc; 1033 if (TAILQ_EMPTY(&asoc->send_queue) && 1034 TAILQ_EMPTY(&asoc->sent_queue) && 1035 (asoc->stream_queue_cnt == 0)) { 1036 if (asoc->locked_on_sending) { 1037 goto abort_anyway; 1038 } 1039 /* there is nothing queued to send, so I'm done... */ 1040 if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) { 1041 /* only send SHUTDOWN the first time through */ 1042 sctp_stop_timers_for_shutdown(stcb); 1043 sctp_send_shutdown(stcb, 1044 stcb->asoc.primary_destination); 1045 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 1046 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 1047 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 1048 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 1049 } 1050 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 1051 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 1052 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 1053 stcb->sctp_ep, stcb, 1054 asoc->primary_destination); 1055 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 1056 stcb->sctp_ep, stcb, 1057 asoc->primary_destination); 1058 } 1059 } else { 1060 /* 1061 * we still got (or just got) data to send, so set 1062 * SHUTDOWN_PENDING 1063 */ 1064 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 1065 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 1066 asoc->primary_destination); 1067 1068 if (asoc->locked_on_sending) { 1069 /* Locked to send out the data */ 1070 struct sctp_stream_queue_pending *sp; 1071 1072 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 1073 if (sp == NULL) { 1074 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 1075 asoc->locked_on_sending->stream_no); 1076 } else { 1077 if ((sp->length == 0) && (sp->msg_is_complete == 0)) { 1078 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 1079 } 1080 } 1081 } 1082 if (TAILQ_EMPTY(&asoc->send_queue) && 1083 TAILQ_EMPTY(&asoc->sent_queue) && 1084 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 1085 struct mbuf *op_err; 1086 1087 abort_anyway: 1088 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 1089 0, M_DONTWAIT, 1, MT_DATA); 1090 if (op_err) { 1091 /* Fill in the user initiated abort */ 1092 struct sctp_paramhdr *ph; 1093 uint32_t *ippp; 1094 1095 SCTP_BUF_LEN(op_err) = 1096 sizeof(struct sctp_paramhdr) + sizeof(uint32_t); 1097 ph = mtod(op_err, 1098 struct sctp_paramhdr *); 1099 ph->param_type = htons( 1100 SCTP_CAUSE_USER_INITIATED_ABT); 1101 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 1102 ippp = (uint32_t *) (ph + 1); 1103 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1104 } 1105 #if defined(SCTP_PANIC_ON_ABORT) 1106 panic("shutdown does an abort"); 1107 #endif 1108 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6; 1109 sctp_abort_an_association(stcb->sctp_ep, stcb, 1110 SCTP_RESPONSE_TO_USER_REQ, 1111 op_err, SCTP_SO_LOCKED); 1112 goto skip_unlock; 1113 } else { 1114 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 1115 } 1116 } 1117 SCTP_TCB_UNLOCK(stcb); 1118 } 1119 skip_unlock: 1120 SCTP_INP_RUNLOCK(inp); 1121 return 0; 1122 } 1123 1124 /* 1125 * copies a "user" presentable address and removes embedded scope, etc. 1126 * returns 0 on success, 1 on error 1127 */ 1128 static uint32_t 1129 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa) 1130 { 1131 #ifdef INET6 1132 struct sockaddr_in6 lsa6; 1133 1134 sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa, 1135 &lsa6); 1136 #endif 1137 memcpy(ss, sa, sa->sa_len); 1138 return (0); 1139 } 1140 1141 1142 1143 /* 1144 * NOTE: assumes addr lock is held 1145 */ 1146 static size_t 1147 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp, 1148 struct sctp_tcb *stcb, 1149 size_t limit, 1150 struct sockaddr_storage *sas, 1151 uint32_t vrf_id) 1152 { 1153 struct sctp_ifn *sctp_ifn; 1154 struct sctp_ifa *sctp_ifa; 1155 int loopback_scope, ipv4_local_scope, local_scope, site_scope; 1156 size_t actual; 1157 int ipv4_addr_legal, ipv6_addr_legal; 1158 struct sctp_vrf *vrf; 1159 1160 actual = 0; 1161 if (limit <= 0) 1162 return (actual); 1163 1164 if (stcb) { 1165 /* Turn on all the appropriate scope */ 1166 loopback_scope = stcb->asoc.loopback_scope; 1167 ipv4_local_scope = stcb->asoc.ipv4_local_scope; 1168 local_scope = stcb->asoc.local_scope; 1169 site_scope = stcb->asoc.site_scope; 1170 } else { 1171 /* Turn on ALL scope, since we look at the EP */ 1172 loopback_scope = ipv4_local_scope = local_scope = 1173 site_scope = 1; 1174 } 1175 ipv4_addr_legal = ipv6_addr_legal = 0; 1176 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1177 ipv6_addr_legal = 1; 1178 if (SCTP_IPV6_V6ONLY(inp) == 0) { 1179 ipv4_addr_legal = 1; 1180 } 1181 } else { 1182 ipv4_addr_legal = 1; 1183 } 1184 vrf = sctp_find_vrf(vrf_id); 1185 if (vrf == NULL) { 1186 return (0); 1187 } 1188 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1189 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1190 if ((loopback_scope == 0) && 1191 SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) { 1192 /* Skip loopback if loopback_scope not set */ 1193 continue; 1194 } 1195 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1196 if (stcb) { 1197 /* 1198 * For the BOUND-ALL case, the list 1199 * associated with a TCB is Always 1200 * considered a reverse list.. i.e. 1201 * it lists addresses that are NOT 1202 * part of the association. If this 1203 * is one of those we must skip it. 1204 */ 1205 if (sctp_is_addr_restricted(stcb, 1206 sctp_ifa)) { 1207 continue; 1208 } 1209 } 1210 switch (sctp_ifa->address.sa.sa_family) { 1211 case AF_INET: 1212 if (ipv4_addr_legal) { 1213 struct sockaddr_in *sin; 1214 1215 sin = (struct sockaddr_in *)&sctp_ifa->address.sa; 1216 if (sin->sin_addr.s_addr == 0) { 1217 /* 1218 * we skip 1219 * unspecifed 1220 * addresses 1221 */ 1222 continue; 1223 } 1224 if ((ipv4_local_scope == 0) && 1225 (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) { 1226 continue; 1227 } 1228 #ifdef INET6 1229 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) { 1230 in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas); 1231 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1232 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6)); 1233 actual += sizeof(struct sockaddr_in6); 1234 } else { 1235 #endif 1236 memcpy(sas, sin, sizeof(*sin)); 1237 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport; 1238 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin)); 1239 actual += sizeof(*sin); 1240 #ifdef INET6 1241 } 1242 #endif 1243 if (actual >= limit) { 1244 return (actual); 1245 } 1246 } else { 1247 continue; 1248 } 1249 break; 1250 #ifdef INET6 1251 case AF_INET6: 1252 if (ipv6_addr_legal) { 1253 struct sockaddr_in6 *sin6; 1254 1255 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa; 1256 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 1257 /* 1258 * we skip 1259 * unspecifed 1260 * addresses 1261 */ 1262 continue; 1263 } 1264 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 1265 if (local_scope == 0) 1266 continue; 1267 if (sin6->sin6_scope_id == 0) { 1268 if (sa6_recoverscope(sin6) != 0) 1269 /* 1270 * 1271 * bad 1272 * 1273 * li 1274 * nk 1275 * 1276 * loc 1277 * al 1278 * 1279 * add 1280 * re 1281 * ss 1282 * */ 1283 continue; 1284 } 1285 } 1286 if ((site_scope == 0) && 1287 (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) { 1288 continue; 1289 } 1290 memcpy(sas, sin6, sizeof(*sin6)); 1291 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1292 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6)); 1293 actual += sizeof(*sin6); 1294 if (actual >= limit) { 1295 return (actual); 1296 } 1297 } else { 1298 continue; 1299 } 1300 break; 1301 #endif 1302 default: 1303 /* TSNH */ 1304 break; 1305 } 1306 } 1307 } 1308 } else { 1309 struct sctp_laddr *laddr; 1310 1311 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1312 if (stcb) { 1313 if (sctp_is_addr_restricted(stcb, laddr->ifa)) { 1314 continue; 1315 } 1316 } 1317 if (sctp_fill_user_address(sas, &laddr->ifa->address.sa)) 1318 continue; 1319 1320 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1321 sas = (struct sockaddr_storage *)((caddr_t)sas + 1322 laddr->ifa->address.sa.sa_len); 1323 actual += laddr->ifa->address.sa.sa_len; 1324 if (actual >= limit) { 1325 return (actual); 1326 } 1327 } 1328 } 1329 return (actual); 1330 } 1331 1332 static size_t 1333 sctp_fill_up_addresses(struct sctp_inpcb *inp, 1334 struct sctp_tcb *stcb, 1335 size_t limit, 1336 struct sockaddr_storage *sas) 1337 { 1338 size_t size = 0; 1339 1340 SCTP_IPI_ADDR_RLOCK(); 1341 /* fill up addresses for the endpoint's default vrf */ 1342 size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas, 1343 inp->def_vrf_id); 1344 SCTP_IPI_ADDR_RUNLOCK(); 1345 return (size); 1346 } 1347 1348 /* 1349 * NOTE: assumes addr lock is held 1350 */ 1351 static int 1352 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id) 1353 { 1354 int cnt = 0; 1355 struct sctp_vrf *vrf = NULL; 1356 1357 /* 1358 * In both sub-set bound an bound_all cases we return the MAXIMUM 1359 * number of addresses that you COULD get. In reality the sub-set 1360 * bound may have an exclusion list for a given TCB OR in the 1361 * bound-all case a TCB may NOT include the loopback or other 1362 * addresses as well. 1363 */ 1364 vrf = sctp_find_vrf(vrf_id); 1365 if (vrf == NULL) { 1366 return (0); 1367 } 1368 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1369 struct sctp_ifn *sctp_ifn; 1370 struct sctp_ifa *sctp_ifa; 1371 1372 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1373 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1374 /* Count them if they are the right type */ 1375 if (sctp_ifa->address.sa.sa_family == AF_INET) { 1376 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1377 cnt += sizeof(struct sockaddr_in6); 1378 else 1379 cnt += sizeof(struct sockaddr_in); 1380 1381 } else if (sctp_ifa->address.sa.sa_family == AF_INET6) 1382 cnt += sizeof(struct sockaddr_in6); 1383 } 1384 } 1385 } else { 1386 struct sctp_laddr *laddr; 1387 1388 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1389 if (laddr->ifa->address.sa.sa_family == AF_INET) { 1390 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1391 cnt += sizeof(struct sockaddr_in6); 1392 else 1393 cnt += sizeof(struct sockaddr_in); 1394 1395 } else if (laddr->ifa->address.sa.sa_family == AF_INET6) 1396 cnt += sizeof(struct sockaddr_in6); 1397 } 1398 } 1399 return (cnt); 1400 } 1401 1402 static int 1403 sctp_count_max_addresses(struct sctp_inpcb *inp) 1404 { 1405 int cnt = 0; 1406 1407 SCTP_IPI_ADDR_RLOCK(); 1408 /* count addresses for the endpoint's default VRF */ 1409 cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id); 1410 SCTP_IPI_ADDR_RUNLOCK(); 1411 return (cnt); 1412 } 1413 1414 static int 1415 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval, 1416 size_t optsize, void *p, int delay) 1417 { 1418 int error = 0; 1419 int creat_lock_on = 0; 1420 struct sctp_tcb *stcb = NULL; 1421 struct sockaddr *sa; 1422 int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr; 1423 int added = 0; 1424 uint32_t vrf_id; 1425 int bad_addresses = 0; 1426 sctp_assoc_t *a_id; 1427 1428 SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n"); 1429 1430 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 1431 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 1432 /* We are already connected AND the TCP model */ 1433 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 1434 return (EADDRINUSE); 1435 } 1436 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) && 1437 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) { 1438 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1439 return (EINVAL); 1440 } 1441 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 1442 SCTP_INP_RLOCK(inp); 1443 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1444 SCTP_INP_RUNLOCK(inp); 1445 } 1446 if (stcb) { 1447 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1448 return (EALREADY); 1449 } 1450 SCTP_INP_INCR_REF(inp); 1451 SCTP_ASOC_CREATE_LOCK(inp); 1452 creat_lock_on = 1; 1453 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 1454 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 1455 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 1456 error = EFAULT; 1457 goto out_now; 1458 } 1459 totaddrp = (int *)optval; 1460 totaddr = *totaddrp; 1461 sa = (struct sockaddr *)(totaddrp + 1); 1462 stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses); 1463 if ((stcb != NULL) || bad_addresses) { 1464 /* Already have or am bring up an association */ 1465 SCTP_ASOC_CREATE_UNLOCK(inp); 1466 creat_lock_on = 0; 1467 if (stcb) 1468 SCTP_TCB_UNLOCK(stcb); 1469 if (bad_addresses == 0) { 1470 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1471 error = EALREADY; 1472 } 1473 goto out_now; 1474 } 1475 #ifdef INET6 1476 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 1477 (num_v6 > 0)) { 1478 error = EINVAL; 1479 goto out_now; 1480 } 1481 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && 1482 (num_v4 > 0)) { 1483 struct in6pcb *inp6; 1484 1485 inp6 = (struct in6pcb *)inp; 1486 if (SCTP_IPV6_V6ONLY(inp6)) { 1487 /* 1488 * if IPV6_V6ONLY flag, ignore connections destined 1489 * to a v4 addr or v4-mapped addr 1490 */ 1491 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1492 error = EINVAL; 1493 goto out_now; 1494 } 1495 } 1496 #endif /* INET6 */ 1497 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 1498 SCTP_PCB_FLAGS_UNBOUND) { 1499 /* Bind a ephemeral port */ 1500 error = sctp_inpcb_bind(so, NULL, NULL, p); 1501 if (error) { 1502 goto out_now; 1503 } 1504 } 1505 /* FIX ME: do we want to pass in a vrf on the connect call? */ 1506 vrf_id = inp->def_vrf_id; 1507 1508 1509 /* We are GOOD to go */ 1510 stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id, 1511 (struct thread *)p 1512 ); 1513 if (stcb == NULL) { 1514 /* Gak! no memory */ 1515 goto out_now; 1516 } 1517 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 1518 /* move to second address */ 1519 if (sa->sa_family == AF_INET) 1520 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in)); 1521 else 1522 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6)); 1523 1524 error = 0; 1525 added = sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error); 1526 /* Fill in the return id */ 1527 if (error) { 1528 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1529 goto out_now; 1530 } 1531 a_id = (sctp_assoc_t *) optval; 1532 *a_id = sctp_get_associd(stcb); 1533 1534 /* initialize authentication parameters for the assoc */ 1535 sctp_initialize_auth_params(inp, stcb); 1536 1537 if (delay) { 1538 /* doing delayed connection */ 1539 stcb->asoc.delayed_connection = 1; 1540 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination); 1541 } else { 1542 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 1543 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 1544 } 1545 SCTP_TCB_UNLOCK(stcb); 1546 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 1547 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 1548 /* Set the connected flag so we can queue data */ 1549 soisconnecting(so); 1550 } 1551 out_now: 1552 if (creat_lock_on) { 1553 SCTP_ASOC_CREATE_UNLOCK(inp); 1554 } 1555 SCTP_INP_DECR_REF(inp); 1556 return error; 1557 } 1558 1559 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \ 1560 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\ 1561 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \ 1562 SCTP_INP_RLOCK(inp); \ 1563 stcb = LIST_FIRST(&inp->sctp_asoc_list); \ 1564 if (stcb) { \ 1565 SCTP_TCB_LOCK(stcb); \ 1566 } \ 1567 SCTP_INP_RUNLOCK(inp); \ 1568 } else if (assoc_id != 0) { \ 1569 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \ 1570 if (stcb == NULL) { \ 1571 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \ 1572 error = ENOENT; \ 1573 break; \ 1574 } \ 1575 } else { \ 1576 stcb = NULL; \ 1577 } \ 1578 } 1579 1580 1581 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\ 1582 if (size < sizeof(type)) { \ 1583 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \ 1584 error = EINVAL; \ 1585 break; \ 1586 } else { \ 1587 destp = (type *)srcp; \ 1588 } \ 1589 } 1590 1591 static int 1592 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize, 1593 void *p) 1594 { 1595 struct sctp_inpcb *inp = NULL; 1596 int error, val = 0; 1597 struct sctp_tcb *stcb = NULL; 1598 1599 if (optval == NULL) { 1600 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1601 return (EINVAL); 1602 } 1603 inp = (struct sctp_inpcb *)so->so_pcb; 1604 if (inp == 0) { 1605 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1606 return EINVAL; 1607 } 1608 error = 0; 1609 1610 switch (optname) { 1611 case SCTP_NODELAY: 1612 case SCTP_AUTOCLOSE: 1613 case SCTP_EXPLICIT_EOR: 1614 case SCTP_AUTO_ASCONF: 1615 case SCTP_DISABLE_FRAGMENTS: 1616 case SCTP_I_WANT_MAPPED_V4_ADDR: 1617 case SCTP_USE_EXT_RCVINFO: 1618 SCTP_INP_RLOCK(inp); 1619 switch (optname) { 1620 case SCTP_DISABLE_FRAGMENTS: 1621 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT); 1622 break; 1623 case SCTP_I_WANT_MAPPED_V4_ADDR: 1624 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4); 1625 break; 1626 case SCTP_AUTO_ASCONF: 1627 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1628 /* only valid for bound all sockets */ 1629 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF); 1630 } else { 1631 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1632 error = EINVAL; 1633 goto flags_out; 1634 } 1635 break; 1636 case SCTP_EXPLICIT_EOR: 1637 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR); 1638 break; 1639 case SCTP_NODELAY: 1640 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY); 1641 break; 1642 case SCTP_USE_EXT_RCVINFO: 1643 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO); 1644 break; 1645 case SCTP_AUTOCLOSE: 1646 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE)) 1647 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time); 1648 else 1649 val = 0; 1650 break; 1651 1652 default: 1653 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 1654 error = ENOPROTOOPT; 1655 } /* end switch (sopt->sopt_name) */ 1656 if (optname != SCTP_AUTOCLOSE) { 1657 /* make it an "on/off" value */ 1658 val = (val != 0); 1659 } 1660 if (*optsize < sizeof(val)) { 1661 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1662 error = EINVAL; 1663 } 1664 flags_out: 1665 SCTP_INP_RUNLOCK(inp); 1666 if (error == 0) { 1667 /* return the option value */ 1668 *(int *)optval = val; 1669 *optsize = sizeof(val); 1670 } 1671 break; 1672 case SCTP_GET_PACKET_LOG: 1673 { 1674 #ifdef SCTP_PACKET_LOGGING 1675 uint8_t *target; 1676 int ret; 1677 1678 SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize); 1679 ret = sctp_copy_out_packet_log(target, (int)*optsize); 1680 *optsize = ret; 1681 #else 1682 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1683 error = EOPNOTSUPP; 1684 #endif 1685 break; 1686 } 1687 case SCTP_REUSE_PORT: 1688 { 1689 uint32_t *value; 1690 1691 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) { 1692 /* Can't do this for a 1-m socket */ 1693 error = EINVAL; 1694 break; 1695 } 1696 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1697 *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE); 1698 *optsize = sizeof(uint32_t); 1699 } 1700 break; 1701 case SCTP_PARTIAL_DELIVERY_POINT: 1702 { 1703 uint32_t *value; 1704 1705 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1706 *value = inp->partial_delivery_point; 1707 *optsize = sizeof(uint32_t); 1708 } 1709 break; 1710 case SCTP_FRAGMENT_INTERLEAVE: 1711 { 1712 uint32_t *value; 1713 1714 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1715 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) { 1716 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) { 1717 *value = SCTP_FRAG_LEVEL_2; 1718 } else { 1719 *value = SCTP_FRAG_LEVEL_1; 1720 } 1721 } else { 1722 *value = SCTP_FRAG_LEVEL_0; 1723 } 1724 *optsize = sizeof(uint32_t); 1725 } 1726 break; 1727 case SCTP_CMT_ON_OFF: 1728 { 1729 struct sctp_assoc_value *av; 1730 1731 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1732 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1733 if (stcb) { 1734 av->assoc_value = stcb->asoc.sctp_cmt_on_off; 1735 SCTP_TCB_UNLOCK(stcb); 1736 } else { 1737 SCTP_INP_RLOCK(inp); 1738 av->assoc_value = inp->sctp_cmt_on_off; 1739 SCTP_INP_RUNLOCK(inp); 1740 } 1741 *optsize = sizeof(*av); 1742 } 1743 break; 1744 /* JRS - Get socket option for pluggable congestion control */ 1745 case SCTP_PLUGGABLE_CC: 1746 { 1747 struct sctp_assoc_value *av; 1748 1749 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1750 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1751 if (stcb) { 1752 av->assoc_value = stcb->asoc.congestion_control_module; 1753 SCTP_TCB_UNLOCK(stcb); 1754 } else { 1755 av->assoc_value = inp->sctp_ep.sctp_default_cc_module; 1756 } 1757 *optsize = sizeof(*av); 1758 } 1759 break; 1760 case SCTP_GET_ADDR_LEN: 1761 { 1762 struct sctp_assoc_value *av; 1763 1764 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1765 error = EINVAL; 1766 #ifdef INET 1767 if (av->assoc_value == AF_INET) { 1768 av->assoc_value = sizeof(struct sockaddr_in); 1769 error = 0; 1770 } 1771 #endif 1772 #ifdef INET6 1773 if (av->assoc_value == AF_INET6) { 1774 av->assoc_value = sizeof(struct sockaddr_in6); 1775 error = 0; 1776 } 1777 #endif 1778 if (error) { 1779 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1780 } 1781 *optsize = sizeof(*av); 1782 } 1783 break; 1784 case SCTP_GET_ASSOC_NUMBER: 1785 { 1786 uint32_t *value, cnt; 1787 1788 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1789 cnt = 0; 1790 SCTP_INP_RLOCK(inp); 1791 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1792 cnt++; 1793 } 1794 SCTP_INP_RUNLOCK(inp); 1795 *value = cnt; 1796 *optsize = sizeof(uint32_t); 1797 } 1798 break; 1799 1800 case SCTP_GET_ASSOC_ID_LIST: 1801 { 1802 struct sctp_assoc_ids *ids; 1803 unsigned int at, limit; 1804 1805 SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize); 1806 at = 0; 1807 limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t); 1808 SCTP_INP_RLOCK(inp); 1809 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1810 if (at < limit) { 1811 ids->gaids_assoc_id[at++] = sctp_get_associd(stcb); 1812 } else { 1813 error = EINVAL; 1814 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1815 break; 1816 } 1817 } 1818 SCTP_INP_RUNLOCK(inp); 1819 ids->gaids_number_of_ids = at; 1820 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t)); 1821 } 1822 break; 1823 case SCTP_CONTEXT: 1824 { 1825 struct sctp_assoc_value *av; 1826 1827 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1828 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1829 1830 if (stcb) { 1831 av->assoc_value = stcb->asoc.context; 1832 SCTP_TCB_UNLOCK(stcb); 1833 } else { 1834 SCTP_INP_RLOCK(inp); 1835 av->assoc_value = inp->sctp_context; 1836 SCTP_INP_RUNLOCK(inp); 1837 } 1838 *optsize = sizeof(*av); 1839 } 1840 break; 1841 case SCTP_VRF_ID: 1842 { 1843 uint32_t *default_vrfid; 1844 1845 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize); 1846 *default_vrfid = inp->def_vrf_id; 1847 break; 1848 } 1849 case SCTP_GET_ASOC_VRF: 1850 { 1851 struct sctp_assoc_value *id; 1852 1853 SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize); 1854 SCTP_FIND_STCB(inp, stcb, id->assoc_id); 1855 if (stcb == NULL) { 1856 error = EINVAL; 1857 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1858 break; 1859 } 1860 id->assoc_value = stcb->asoc.vrf_id; 1861 break; 1862 } 1863 case SCTP_GET_VRF_IDS: 1864 { 1865 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1866 error = EOPNOTSUPP; 1867 break; 1868 } 1869 case SCTP_GET_NONCE_VALUES: 1870 { 1871 struct sctp_get_nonce_values *gnv; 1872 1873 SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize); 1874 SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id); 1875 1876 if (stcb) { 1877 gnv->gn_peers_tag = stcb->asoc.peer_vtag; 1878 gnv->gn_local_tag = stcb->asoc.my_vtag; 1879 SCTP_TCB_UNLOCK(stcb); 1880 } else { 1881 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1882 error = ENOTCONN; 1883 } 1884 *optsize = sizeof(*gnv); 1885 } 1886 break; 1887 case SCTP_DELAYED_SACK: 1888 { 1889 struct sctp_sack_info *sack; 1890 1891 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize); 1892 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 1893 if (stcb) { 1894 sack->sack_delay = stcb->asoc.delayed_ack; 1895 sack->sack_freq = stcb->asoc.sack_freq; 1896 SCTP_TCB_UNLOCK(stcb); 1897 } else { 1898 SCTP_INP_RLOCK(inp); 1899 sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]); 1900 sack->sack_freq = inp->sctp_ep.sctp_sack_freq; 1901 SCTP_INP_RUNLOCK(inp); 1902 } 1903 *optsize = sizeof(*sack); 1904 } 1905 break; 1906 1907 case SCTP_GET_SNDBUF_USE: 1908 { 1909 struct sctp_sockstat *ss; 1910 1911 SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize); 1912 SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id); 1913 1914 if (stcb) { 1915 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size; 1916 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue + 1917 stcb->asoc.size_on_all_streams); 1918 SCTP_TCB_UNLOCK(stcb); 1919 } else { 1920 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1921 error = ENOTCONN; 1922 } 1923 *optsize = sizeof(struct sctp_sockstat); 1924 } 1925 break; 1926 case SCTP_MAX_BURST: 1927 { 1928 uint8_t *value; 1929 1930 SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize); 1931 1932 SCTP_INP_RLOCK(inp); 1933 *value = inp->sctp_ep.max_burst; 1934 SCTP_INP_RUNLOCK(inp); 1935 *optsize = sizeof(uint8_t); 1936 } 1937 break; 1938 case SCTP_MAXSEG: 1939 { 1940 struct sctp_assoc_value *av; 1941 int ovh; 1942 1943 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1944 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1945 1946 if (stcb) { 1947 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc); 1948 SCTP_TCB_UNLOCK(stcb); 1949 } else { 1950 SCTP_INP_RLOCK(inp); 1951 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1952 ovh = SCTP_MED_OVERHEAD; 1953 } else { 1954 ovh = SCTP_MED_V4_OVERHEAD; 1955 } 1956 if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT) 1957 av->assoc_value = 0; 1958 else 1959 av->assoc_value = inp->sctp_frag_point - ovh; 1960 SCTP_INP_RUNLOCK(inp); 1961 } 1962 *optsize = sizeof(struct sctp_assoc_value); 1963 } 1964 break; 1965 case SCTP_GET_STAT_LOG: 1966 error = sctp_fill_stat_log(optval, optsize); 1967 break; 1968 case SCTP_EVENTS: 1969 { 1970 struct sctp_event_subscribe *events; 1971 1972 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize); 1973 memset(events, 0, sizeof(*events)); 1974 SCTP_INP_RLOCK(inp); 1975 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT)) 1976 events->sctp_data_io_event = 1; 1977 1978 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT)) 1979 events->sctp_association_event = 1; 1980 1981 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT)) 1982 events->sctp_address_event = 1; 1983 1984 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT)) 1985 events->sctp_send_failure_event = 1; 1986 1987 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR)) 1988 events->sctp_peer_error_event = 1; 1989 1990 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT)) 1991 events->sctp_shutdown_event = 1; 1992 1993 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT)) 1994 events->sctp_partial_delivery_event = 1; 1995 1996 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT)) 1997 events->sctp_adaptation_layer_event = 1; 1998 1999 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT)) 2000 events->sctp_authentication_event = 1; 2001 2002 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT)) 2003 events->sctp_sender_dry_event = 1; 2004 2005 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT)) 2006 events->sctp_stream_reset_event = 1; 2007 SCTP_INP_RUNLOCK(inp); 2008 *optsize = sizeof(struct sctp_event_subscribe); 2009 } 2010 break; 2011 2012 case SCTP_ADAPTATION_LAYER: 2013 { 2014 uint32_t *value; 2015 2016 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2017 2018 SCTP_INP_RLOCK(inp); 2019 *value = inp->sctp_ep.adaptation_layer_indicator; 2020 SCTP_INP_RUNLOCK(inp); 2021 *optsize = sizeof(uint32_t); 2022 } 2023 break; 2024 case SCTP_SET_INITIAL_DBG_SEQ: 2025 { 2026 uint32_t *value; 2027 2028 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2029 SCTP_INP_RLOCK(inp); 2030 *value = inp->sctp_ep.initial_sequence_debug; 2031 SCTP_INP_RUNLOCK(inp); 2032 *optsize = sizeof(uint32_t); 2033 } 2034 break; 2035 case SCTP_GET_LOCAL_ADDR_SIZE: 2036 { 2037 uint32_t *value; 2038 2039 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2040 SCTP_INP_RLOCK(inp); 2041 *value = sctp_count_max_addresses(inp); 2042 SCTP_INP_RUNLOCK(inp); 2043 *optsize = sizeof(uint32_t); 2044 } 2045 break; 2046 case SCTP_GET_REMOTE_ADDR_SIZE: 2047 { 2048 uint32_t *value; 2049 size_t size; 2050 struct sctp_nets *net; 2051 2052 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2053 /* FIXME MT: change to sctp_assoc_value? */ 2054 SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value); 2055 2056 if (stcb) { 2057 size = 0; 2058 /* Count the sizes */ 2059 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2060 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) || 2061 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 2062 size += sizeof(struct sockaddr_in6); 2063 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 2064 size += sizeof(struct sockaddr_in); 2065 } else { 2066 /* huh */ 2067 break; 2068 } 2069 } 2070 SCTP_TCB_UNLOCK(stcb); 2071 *value = (uint32_t) size; 2072 } else { 2073 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2074 error = ENOTCONN; 2075 } 2076 *optsize = sizeof(uint32_t); 2077 } 2078 break; 2079 case SCTP_GET_PEER_ADDRESSES: 2080 /* 2081 * Get the address information, an array is passed in to 2082 * fill up we pack it. 2083 */ 2084 { 2085 size_t cpsz, left; 2086 struct sockaddr_storage *sas; 2087 struct sctp_nets *net; 2088 struct sctp_getaddresses *saddr; 2089 2090 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2091 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2092 2093 if (stcb) { 2094 left = (*optsize) - sizeof(struct sctp_getaddresses); 2095 *optsize = sizeof(struct sctp_getaddresses); 2096 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2097 2098 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2099 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) || 2100 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 2101 cpsz = sizeof(struct sockaddr_in6); 2102 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 2103 cpsz = sizeof(struct sockaddr_in); 2104 } else { 2105 /* huh */ 2106 break; 2107 } 2108 if (left < cpsz) { 2109 /* not enough room. */ 2110 break; 2111 } 2112 #ifdef INET6 2113 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) && 2114 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) { 2115 /* Must map the address */ 2116 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr, 2117 (struct sockaddr_in6 *)sas); 2118 } else { 2119 #endif 2120 memcpy(sas, &net->ro._l_addr, cpsz); 2121 #ifdef INET6 2122 } 2123 #endif 2124 ((struct sockaddr_in *)sas)->sin_port = stcb->rport; 2125 2126 sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz); 2127 left -= cpsz; 2128 *optsize += cpsz; 2129 } 2130 SCTP_TCB_UNLOCK(stcb); 2131 } else { 2132 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2133 error = ENOENT; 2134 } 2135 } 2136 break; 2137 case SCTP_GET_LOCAL_ADDRESSES: 2138 { 2139 size_t limit, actual; 2140 struct sockaddr_storage *sas; 2141 struct sctp_getaddresses *saddr; 2142 2143 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2144 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2145 2146 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2147 limit = *optsize - sizeof(sctp_assoc_t); 2148 actual = sctp_fill_up_addresses(inp, stcb, limit, sas); 2149 if (stcb) { 2150 SCTP_TCB_UNLOCK(stcb); 2151 } 2152 *optsize = sizeof(struct sockaddr_storage) + actual; 2153 } 2154 break; 2155 case SCTP_PEER_ADDR_PARAMS: 2156 { 2157 struct sctp_paddrparams *paddrp; 2158 struct sctp_nets *net; 2159 2160 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize); 2161 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 2162 2163 net = NULL; 2164 if (stcb) { 2165 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 2166 } else { 2167 /* 2168 * We increment here since 2169 * sctp_findassociation_ep_addr() wil do a 2170 * decrement if it finds the stcb as long as 2171 * the locked tcb (last argument) is NOT a 2172 * TCB.. aka NULL. 2173 */ 2174 SCTP_INP_INCR_REF(inp); 2175 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL); 2176 if (stcb == NULL) { 2177 SCTP_INP_DECR_REF(inp); 2178 } 2179 } 2180 if (stcb && (net == NULL)) { 2181 struct sockaddr *sa; 2182 2183 sa = (struct sockaddr *)&paddrp->spp_address; 2184 if (sa->sa_family == AF_INET) { 2185 struct sockaddr_in *sin; 2186 2187 sin = (struct sockaddr_in *)sa; 2188 if (sin->sin_addr.s_addr) { 2189 error = EINVAL; 2190 SCTP_TCB_UNLOCK(stcb); 2191 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2192 break; 2193 } 2194 } else if (sa->sa_family == AF_INET6) { 2195 struct sockaddr_in6 *sin6; 2196 2197 sin6 = (struct sockaddr_in6 *)sa; 2198 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 2199 error = EINVAL; 2200 SCTP_TCB_UNLOCK(stcb); 2201 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2202 break; 2203 } 2204 } else { 2205 error = EAFNOSUPPORT; 2206 SCTP_TCB_UNLOCK(stcb); 2207 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2208 break; 2209 } 2210 } 2211 if (stcb) { 2212 /* Applys to the specific association */ 2213 paddrp->spp_flags = 0; 2214 if (net) { 2215 int ovh; 2216 2217 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2218 ovh = SCTP_MED_OVERHEAD; 2219 } else { 2220 ovh = SCTP_MED_V4_OVERHEAD; 2221 } 2222 2223 2224 paddrp->spp_pathmaxrxt = net->failure_threshold; 2225 paddrp->spp_pathmtu = net->mtu - ovh; 2226 /* get flags for HB */ 2227 if (net->dest_state & SCTP_ADDR_NOHB) 2228 paddrp->spp_flags |= SPP_HB_DISABLE; 2229 else 2230 paddrp->spp_flags |= SPP_HB_ENABLE; 2231 /* get flags for PMTU */ 2232 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2233 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2234 } else { 2235 paddrp->spp_flags |= SPP_PMTUD_DISABLE; 2236 } 2237 #ifdef INET 2238 if (net->ro._l_addr.sin.sin_family == AF_INET) { 2239 paddrp->spp_ipv4_tos = net->tos_flowlabel & 0x000000fc; 2240 paddrp->spp_flags |= SPP_IPV4_TOS; 2241 } 2242 #endif 2243 #ifdef INET6 2244 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 2245 paddrp->spp_ipv6_flowlabel = net->tos_flowlabel; 2246 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2247 } 2248 #endif 2249 } else { 2250 /* 2251 * No destination so return default 2252 * value 2253 */ 2254 int cnt = 0; 2255 2256 paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure; 2257 paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc); 2258 #ifdef INET 2259 paddrp->spp_ipv4_tos = stcb->asoc.default_tos & 0x000000fc; 2260 paddrp->spp_flags |= SPP_IPV4_TOS; 2261 #endif 2262 #ifdef INET6 2263 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel; 2264 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2265 #endif 2266 /* default settings should be these */ 2267 if (stcb->asoc.hb_is_disabled == 0) { 2268 paddrp->spp_flags |= SPP_HB_ENABLE; 2269 } else { 2270 paddrp->spp_flags |= SPP_HB_DISABLE; 2271 } 2272 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2273 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2274 cnt++; 2275 } 2276 } 2277 if (cnt) { 2278 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2279 } 2280 } 2281 paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay; 2282 paddrp->spp_assoc_id = sctp_get_associd(stcb); 2283 SCTP_TCB_UNLOCK(stcb); 2284 } else { 2285 /* Use endpoint defaults */ 2286 SCTP_INP_RLOCK(inp); 2287 paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure; 2288 paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]); 2289 paddrp->spp_assoc_id = (sctp_assoc_t) 0; 2290 /* get inp's default */ 2291 #ifdef INET 2292 paddrp->spp_ipv4_tos = inp->ip_inp.inp.inp_ip_tos; 2293 paddrp->spp_flags |= SPP_IPV4_TOS; 2294 #endif 2295 #ifdef INET6 2296 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2297 paddrp->spp_ipv6_flowlabel = ((struct in6pcb *)inp)->in6p_flowinfo; 2298 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2299 } 2300 #endif 2301 /* can't return this */ 2302 paddrp->spp_pathmtu = 0; 2303 2304 /* default behavior, no stcb */ 2305 paddrp->spp_flags = SPP_PMTUD_ENABLE; 2306 2307 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) { 2308 paddrp->spp_flags |= SPP_HB_ENABLE; 2309 } else { 2310 paddrp->spp_flags |= SPP_HB_DISABLE; 2311 } 2312 SCTP_INP_RUNLOCK(inp); 2313 } 2314 *optsize = sizeof(struct sctp_paddrparams); 2315 } 2316 break; 2317 case SCTP_GET_PEER_ADDR_INFO: 2318 { 2319 struct sctp_paddrinfo *paddri; 2320 struct sctp_nets *net; 2321 2322 SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize); 2323 SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id); 2324 2325 net = NULL; 2326 if (stcb) { 2327 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address); 2328 } else { 2329 /* 2330 * We increment here since 2331 * sctp_findassociation_ep_addr() wil do a 2332 * decrement if it finds the stcb as long as 2333 * the locked tcb (last argument) is NOT a 2334 * TCB.. aka NULL. 2335 */ 2336 SCTP_INP_INCR_REF(inp); 2337 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL); 2338 if (stcb == NULL) { 2339 SCTP_INP_DECR_REF(inp); 2340 } 2341 } 2342 2343 if ((stcb) && (net)) { 2344 paddri->spinfo_state = net->dest_state & (SCTP_REACHABLE_MASK | SCTP_ADDR_NOHB); 2345 paddri->spinfo_cwnd = net->cwnd; 2346 paddri->spinfo_srtt = ((net->lastsa >> 2) + net->lastsv) >> 1; 2347 paddri->spinfo_rto = net->RTO; 2348 paddri->spinfo_assoc_id = sctp_get_associd(stcb); 2349 SCTP_TCB_UNLOCK(stcb); 2350 } else { 2351 if (stcb) { 2352 SCTP_TCB_UNLOCK(stcb); 2353 } 2354 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2355 error = ENOENT; 2356 } 2357 *optsize = sizeof(struct sctp_paddrinfo); 2358 } 2359 break; 2360 case SCTP_PCB_STATUS: 2361 { 2362 struct sctp_pcbinfo *spcb; 2363 2364 SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize); 2365 sctp_fill_pcbinfo(spcb); 2366 *optsize = sizeof(struct sctp_pcbinfo); 2367 } 2368 break; 2369 2370 case SCTP_STATUS: 2371 { 2372 struct sctp_nets *net; 2373 struct sctp_status *sstat; 2374 2375 SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize); 2376 SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id); 2377 2378 if (stcb == NULL) { 2379 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2380 error = EINVAL; 2381 break; 2382 } 2383 /* 2384 * I think passing the state is fine since 2385 * sctp_constants.h will be available to the user 2386 * land. 2387 */ 2388 sstat->sstat_state = stcb->asoc.state; 2389 sstat->sstat_assoc_id = sctp_get_associd(stcb); 2390 sstat->sstat_rwnd = stcb->asoc.peers_rwnd; 2391 sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt; 2392 /* 2393 * We can't include chunks that have been passed to 2394 * the socket layer. Only things in queue. 2395 */ 2396 sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue + 2397 stcb->asoc.cnt_on_all_streams); 2398 2399 2400 sstat->sstat_instrms = stcb->asoc.streamincnt; 2401 sstat->sstat_outstrms = stcb->asoc.streamoutcnt; 2402 sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc); 2403 memcpy(&sstat->sstat_primary.spinfo_address, 2404 &stcb->asoc.primary_destination->ro._l_addr, 2405 ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len); 2406 net = stcb->asoc.primary_destination; 2407 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport; 2408 /* 2409 * Again the user can get info from sctp_constants.h 2410 * for what the state of the network is. 2411 */ 2412 sstat->sstat_primary.spinfo_state = net->dest_state & SCTP_REACHABLE_MASK; 2413 sstat->sstat_primary.spinfo_cwnd = net->cwnd; 2414 sstat->sstat_primary.spinfo_srtt = net->lastsa; 2415 sstat->sstat_primary.spinfo_rto = net->RTO; 2416 sstat->sstat_primary.spinfo_mtu = net->mtu; 2417 sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb); 2418 SCTP_TCB_UNLOCK(stcb); 2419 *optsize = sizeof(*sstat); 2420 } 2421 break; 2422 case SCTP_RTOINFO: 2423 { 2424 struct sctp_rtoinfo *srto; 2425 2426 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize); 2427 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 2428 2429 if (stcb) { 2430 srto->srto_initial = stcb->asoc.initial_rto; 2431 srto->srto_max = stcb->asoc.maxrto; 2432 srto->srto_min = stcb->asoc.minrto; 2433 SCTP_TCB_UNLOCK(stcb); 2434 } else { 2435 SCTP_INP_RLOCK(inp); 2436 srto->srto_initial = inp->sctp_ep.initial_rto; 2437 srto->srto_max = inp->sctp_ep.sctp_maxrto; 2438 srto->srto_min = inp->sctp_ep.sctp_minrto; 2439 SCTP_INP_RUNLOCK(inp); 2440 } 2441 *optsize = sizeof(*srto); 2442 } 2443 break; 2444 case SCTP_TIMEOUTS: 2445 { 2446 struct sctp_timeouts *stimo; 2447 2448 SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize); 2449 SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id); 2450 2451 if (stcb) { 2452 stimo->stimo_init = stcb->asoc.timoinit; 2453 stimo->stimo_data = stcb->asoc.timodata; 2454 stimo->stimo_sack = stcb->asoc.timosack; 2455 stimo->stimo_shutdown = stcb->asoc.timoshutdown; 2456 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat; 2457 stimo->stimo_cookie = stcb->asoc.timocookie; 2458 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack; 2459 SCTP_TCB_UNLOCK(stcb); 2460 } else { 2461 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2462 error = EINVAL; 2463 } 2464 *optsize = sizeof(*stimo); 2465 } 2466 break; 2467 case SCTP_ASSOCINFO: 2468 { 2469 struct sctp_assocparams *sasoc; 2470 uint32_t oldval; 2471 2472 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize); 2473 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 2474 2475 if (stcb) { 2476 oldval = sasoc->sasoc_cookie_life; 2477 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life); 2478 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times; 2479 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 2480 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd; 2481 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd; 2482 SCTP_TCB_UNLOCK(stcb); 2483 } else { 2484 SCTP_INP_RLOCK(inp); 2485 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life); 2486 sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times; 2487 sasoc->sasoc_number_peer_destinations = 0; 2488 sasoc->sasoc_peer_rwnd = 0; 2489 sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv); 2490 SCTP_INP_RUNLOCK(inp); 2491 } 2492 *optsize = sizeof(*sasoc); 2493 } 2494 break; 2495 case SCTP_DEFAULT_SEND_PARAM: 2496 { 2497 struct sctp_sndrcvinfo *s_info; 2498 2499 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize); 2500 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 2501 2502 if (stcb) { 2503 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send)); 2504 SCTP_TCB_UNLOCK(stcb); 2505 } else { 2506 SCTP_INP_RLOCK(inp); 2507 memcpy(s_info, &inp->def_send, sizeof(inp->def_send)); 2508 SCTP_INP_RUNLOCK(inp); 2509 } 2510 *optsize = sizeof(*s_info); 2511 } 2512 break; 2513 case SCTP_INITMSG: 2514 { 2515 struct sctp_initmsg *sinit; 2516 2517 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize); 2518 SCTP_INP_RLOCK(inp); 2519 sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count; 2520 sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome; 2521 sinit->sinit_max_attempts = inp->sctp_ep.max_init_times; 2522 sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max; 2523 SCTP_INP_RUNLOCK(inp); 2524 *optsize = sizeof(*sinit); 2525 } 2526 break; 2527 case SCTP_PRIMARY_ADDR: 2528 /* we allow a "get" operation on this */ 2529 { 2530 struct sctp_setprim *ssp; 2531 2532 SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize); 2533 SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id); 2534 2535 if (stcb) { 2536 /* simply copy out the sockaddr_storage... */ 2537 int len; 2538 2539 len = *optsize; 2540 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len) 2541 len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len; 2542 2543 memcpy(&ssp->ssp_addr, 2544 &stcb->asoc.primary_destination->ro._l_addr, 2545 len); 2546 SCTP_TCB_UNLOCK(stcb); 2547 } else { 2548 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2549 error = EINVAL; 2550 } 2551 *optsize = sizeof(*ssp); 2552 } 2553 break; 2554 2555 case SCTP_HMAC_IDENT: 2556 { 2557 struct sctp_hmacalgo *shmac; 2558 sctp_hmaclist_t *hmaclist; 2559 uint32_t size; 2560 int i; 2561 2562 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize); 2563 2564 SCTP_INP_RLOCK(inp); 2565 hmaclist = inp->sctp_ep.local_hmacs; 2566 if (hmaclist == NULL) { 2567 /* no HMACs to return */ 2568 *optsize = sizeof(*shmac); 2569 SCTP_INP_RUNLOCK(inp); 2570 break; 2571 } 2572 /* is there room for all of the hmac ids? */ 2573 size = sizeof(*shmac) + (hmaclist->num_algo * 2574 sizeof(shmac->shmac_idents[0])); 2575 if ((size_t)(*optsize) < size) { 2576 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2577 error = EINVAL; 2578 SCTP_INP_RUNLOCK(inp); 2579 break; 2580 } 2581 /* copy in the list */ 2582 shmac->shmac_number_of_idents = hmaclist->num_algo; 2583 for (i = 0; i < hmaclist->num_algo; i++) { 2584 shmac->shmac_idents[i] = hmaclist->hmac[i]; 2585 } 2586 SCTP_INP_RUNLOCK(inp); 2587 *optsize = size; 2588 break; 2589 } 2590 case SCTP_AUTH_ACTIVE_KEY: 2591 { 2592 struct sctp_authkeyid *scact; 2593 2594 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize); 2595 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 2596 2597 if (stcb) { 2598 /* get the active key on the assoc */ 2599 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid; 2600 SCTP_TCB_UNLOCK(stcb); 2601 } else { 2602 /* get the endpoint active key */ 2603 SCTP_INP_RLOCK(inp); 2604 scact->scact_keynumber = inp->sctp_ep.default_keyid; 2605 SCTP_INP_RUNLOCK(inp); 2606 } 2607 *optsize = sizeof(*scact); 2608 break; 2609 } 2610 case SCTP_LOCAL_AUTH_CHUNKS: 2611 { 2612 struct sctp_authchunks *sac; 2613 sctp_auth_chklist_t *chklist = NULL; 2614 size_t size = 0; 2615 2616 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2617 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2618 2619 if (stcb) { 2620 /* get off the assoc */ 2621 chklist = stcb->asoc.local_auth_chunks; 2622 /* is there enough space? */ 2623 size = sctp_auth_get_chklist_size(chklist); 2624 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2625 error = EINVAL; 2626 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2627 } else { 2628 /* copy in the chunks */ 2629 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2630 } 2631 SCTP_TCB_UNLOCK(stcb); 2632 } else { 2633 /* get off the endpoint */ 2634 SCTP_INP_RLOCK(inp); 2635 chklist = inp->sctp_ep.local_auth_chunks; 2636 /* is there enough space? */ 2637 size = sctp_auth_get_chklist_size(chklist); 2638 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2639 error = EINVAL; 2640 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2641 } else { 2642 /* copy in the chunks */ 2643 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2644 } 2645 SCTP_INP_RUNLOCK(inp); 2646 } 2647 *optsize = sizeof(struct sctp_authchunks) + size; 2648 break; 2649 } 2650 case SCTP_PEER_AUTH_CHUNKS: 2651 { 2652 struct sctp_authchunks *sac; 2653 sctp_auth_chklist_t *chklist = NULL; 2654 size_t size = 0; 2655 2656 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2657 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2658 2659 if (stcb) { 2660 /* get off the assoc */ 2661 chklist = stcb->asoc.peer_auth_chunks; 2662 /* is there enough space? */ 2663 size = sctp_auth_get_chklist_size(chklist); 2664 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2665 error = EINVAL; 2666 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2667 } else { 2668 /* copy in the chunks */ 2669 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2670 } 2671 SCTP_TCB_UNLOCK(stcb); 2672 } else { 2673 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2674 error = ENOENT; 2675 } 2676 *optsize = sizeof(struct sctp_authchunks) + size; 2677 break; 2678 } 2679 2680 2681 default: 2682 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 2683 error = ENOPROTOOPT; 2684 *optsize = 0; 2685 break; 2686 } /* end switch (sopt->sopt_name) */ 2687 return (error); 2688 } 2689 2690 static int 2691 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize, 2692 void *p) 2693 { 2694 int error, set_opt; 2695 uint32_t *mopt; 2696 struct sctp_tcb *stcb = NULL; 2697 struct sctp_inpcb *inp = NULL; 2698 uint32_t vrf_id; 2699 2700 if (optval == NULL) { 2701 SCTP_PRINTF("optval is NULL\n"); 2702 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2703 return (EINVAL); 2704 } 2705 inp = (struct sctp_inpcb *)so->so_pcb; 2706 if (inp == 0) { 2707 SCTP_PRINTF("inp is NULL?\n"); 2708 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2709 return EINVAL; 2710 } 2711 vrf_id = inp->def_vrf_id; 2712 2713 error = 0; 2714 switch (optname) { 2715 case SCTP_NODELAY: 2716 case SCTP_AUTOCLOSE: 2717 case SCTP_AUTO_ASCONF: 2718 case SCTP_EXPLICIT_EOR: 2719 case SCTP_DISABLE_FRAGMENTS: 2720 case SCTP_USE_EXT_RCVINFO: 2721 case SCTP_I_WANT_MAPPED_V4_ADDR: 2722 /* copy in the option value */ 2723 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 2724 set_opt = 0; 2725 if (error) 2726 break; 2727 switch (optname) { 2728 case SCTP_DISABLE_FRAGMENTS: 2729 set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT; 2730 break; 2731 case SCTP_AUTO_ASCONF: 2732 /* 2733 * NOTE: we don't really support this flag 2734 */ 2735 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 2736 /* only valid for bound all sockets */ 2737 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF; 2738 } else { 2739 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2740 return (EINVAL); 2741 } 2742 break; 2743 case SCTP_EXPLICIT_EOR: 2744 set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR; 2745 break; 2746 case SCTP_USE_EXT_RCVINFO: 2747 set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO; 2748 break; 2749 case SCTP_I_WANT_MAPPED_V4_ADDR: 2750 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2751 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4; 2752 } else { 2753 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2754 return (EINVAL); 2755 } 2756 break; 2757 case SCTP_NODELAY: 2758 set_opt = SCTP_PCB_FLAGS_NODELAY; 2759 break; 2760 case SCTP_AUTOCLOSE: 2761 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2762 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 2763 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2764 return (EINVAL); 2765 } 2766 set_opt = SCTP_PCB_FLAGS_AUTOCLOSE; 2767 /* 2768 * The value is in ticks. Note this does not effect 2769 * old associations, only new ones. 2770 */ 2771 inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt); 2772 break; 2773 } 2774 SCTP_INP_WLOCK(inp); 2775 if (*mopt != 0) { 2776 sctp_feature_on(inp, set_opt); 2777 } else { 2778 sctp_feature_off(inp, set_opt); 2779 } 2780 SCTP_INP_WUNLOCK(inp); 2781 break; 2782 case SCTP_REUSE_PORT: 2783 { 2784 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 2785 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) { 2786 /* Can't set it after we are bound */ 2787 error = EINVAL; 2788 break; 2789 } 2790 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) { 2791 /* Can't do this for a 1-m socket */ 2792 error = EINVAL; 2793 break; 2794 } 2795 if (optval) 2796 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE); 2797 else 2798 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE); 2799 } 2800 break; 2801 case SCTP_PARTIAL_DELIVERY_POINT: 2802 { 2803 uint32_t *value; 2804 2805 SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize); 2806 if (*value > SCTP_SB_LIMIT_RCV(so)) { 2807 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2808 error = EINVAL; 2809 break; 2810 } 2811 inp->partial_delivery_point = *value; 2812 } 2813 break; 2814 case SCTP_FRAGMENT_INTERLEAVE: 2815 /* not yet until we re-write sctp_recvmsg() */ 2816 { 2817 uint32_t *level; 2818 2819 SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize); 2820 if (*level == SCTP_FRAG_LEVEL_2) { 2821 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2822 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2823 } else if (*level == SCTP_FRAG_LEVEL_1) { 2824 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2825 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2826 } else if (*level == SCTP_FRAG_LEVEL_0) { 2827 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2828 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2829 2830 } else { 2831 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2832 error = EINVAL; 2833 } 2834 } 2835 break; 2836 case SCTP_CMT_ON_OFF: 2837 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) { 2838 struct sctp_assoc_value *av; 2839 2840 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2841 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2842 if (stcb) { 2843 stcb->asoc.sctp_cmt_on_off = av->assoc_value; 2844 if (stcb->asoc.sctp_cmt_on_off > 2) { 2845 stcb->asoc.sctp_cmt_on_off = 2; 2846 } 2847 SCTP_TCB_UNLOCK(stcb); 2848 } else { 2849 SCTP_INP_WLOCK(inp); 2850 inp->sctp_cmt_on_off = av->assoc_value; 2851 if (inp->sctp_cmt_on_off > 2) { 2852 inp->sctp_cmt_on_off = 2; 2853 } 2854 SCTP_INP_WUNLOCK(inp); 2855 } 2856 } else { 2857 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 2858 error = ENOPROTOOPT; 2859 } 2860 break; 2861 /* JRS - Set socket option for pluggable congestion control */ 2862 case SCTP_PLUGGABLE_CC: 2863 { 2864 struct sctp_assoc_value *av; 2865 2866 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2867 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2868 if (stcb) { 2869 switch (av->assoc_value) { 2870 /* 2871 * JRS - Standard TCP congestion 2872 * control 2873 */ 2874 case SCTP_CC_RFC2581: 2875 { 2876 stcb->asoc.congestion_control_module = SCTP_CC_RFC2581; 2877 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; 2878 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_cwnd_update_after_sack; 2879 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_cwnd_update_after_fr; 2880 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; 2881 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; 2882 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2883 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2884 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; 2885 SCTP_TCB_UNLOCK(stcb); 2886 break; 2887 } 2888 /* 2889 * JRS - High Speed TCP congestion 2890 * control (Floyd) 2891 */ 2892 case SCTP_CC_HSTCP: 2893 { 2894 stcb->asoc.congestion_control_module = SCTP_CC_HSTCP; 2895 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; 2896 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_hs_cwnd_update_after_sack; 2897 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_hs_cwnd_update_after_fr; 2898 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; 2899 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; 2900 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2901 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2902 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; 2903 SCTP_TCB_UNLOCK(stcb); 2904 break; 2905 } 2906 /* JRS - HTCP congestion control */ 2907 case SCTP_CC_HTCP: 2908 { 2909 stcb->asoc.congestion_control_module = SCTP_CC_HTCP; 2910 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_htcp_set_initial_cc_param; 2911 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_htcp_cwnd_update_after_sack; 2912 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_htcp_cwnd_update_after_fr; 2913 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_htcp_cwnd_update_after_timeout; 2914 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_htcp_cwnd_update_after_ecn_echo; 2915 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2916 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2917 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_htcp_cwnd_update_after_fr_timer; 2918 SCTP_TCB_UNLOCK(stcb); 2919 break; 2920 } 2921 /* 2922 * JRS - All other values are 2923 * invalid 2924 */ 2925 default: 2926 { 2927 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2928 error = EINVAL; 2929 SCTP_TCB_UNLOCK(stcb); 2930 break; 2931 } 2932 } 2933 } else { 2934 switch (av->assoc_value) { 2935 case SCTP_CC_RFC2581: 2936 case SCTP_CC_HSTCP: 2937 case SCTP_CC_HTCP: 2938 inp->sctp_ep.sctp_default_cc_module = av->assoc_value; 2939 break; 2940 default: 2941 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2942 error = EINVAL; 2943 break; 2944 }; 2945 } 2946 } 2947 break; 2948 case SCTP_CLR_STAT_LOG: 2949 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2950 error = EOPNOTSUPP; 2951 break; 2952 case SCTP_CONTEXT: 2953 { 2954 struct sctp_assoc_value *av; 2955 2956 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2957 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2958 2959 if (stcb) { 2960 stcb->asoc.context = av->assoc_value; 2961 SCTP_TCB_UNLOCK(stcb); 2962 } else { 2963 SCTP_INP_WLOCK(inp); 2964 inp->sctp_context = av->assoc_value; 2965 SCTP_INP_WUNLOCK(inp); 2966 } 2967 } 2968 break; 2969 case SCTP_VRF_ID: 2970 { 2971 uint32_t *default_vrfid; 2972 2973 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize); 2974 if (*default_vrfid > SCTP_MAX_VRF_ID) { 2975 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2976 error = EINVAL; 2977 break; 2978 } 2979 inp->def_vrf_id = *default_vrfid; 2980 break; 2981 } 2982 case SCTP_DEL_VRF_ID: 2983 { 2984 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2985 error = EOPNOTSUPP; 2986 break; 2987 } 2988 case SCTP_ADD_VRF_ID: 2989 { 2990 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2991 error = EOPNOTSUPP; 2992 break; 2993 } 2994 case SCTP_DELAYED_SACK: 2995 { 2996 struct sctp_sack_info *sack; 2997 2998 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize); 2999 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 3000 if (sack->sack_delay) { 3001 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) 3002 sack->sack_delay = SCTP_MAX_SACK_DELAY; 3003 } 3004 if (stcb) { 3005 if (sack->sack_delay) { 3006 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 3007 sack->sack_delay = TICKS_TO_MSEC(1); 3008 } 3009 stcb->asoc.delayed_ack = sack->sack_delay; 3010 } 3011 if (sack->sack_freq) { 3012 stcb->asoc.sack_freq = sack->sack_freq; 3013 } 3014 SCTP_TCB_UNLOCK(stcb); 3015 } else { 3016 SCTP_INP_WLOCK(inp); 3017 if (sack->sack_delay) { 3018 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 3019 sack->sack_delay = TICKS_TO_MSEC(1); 3020 } 3021 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay); 3022 } 3023 if (sack->sack_freq) { 3024 inp->sctp_ep.sctp_sack_freq = sack->sack_freq; 3025 } 3026 SCTP_INP_WUNLOCK(inp); 3027 } 3028 break; 3029 } 3030 case SCTP_AUTH_CHUNK: 3031 { 3032 struct sctp_authchunk *sauth; 3033 3034 SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize); 3035 3036 SCTP_INP_WLOCK(inp); 3037 if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) { 3038 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3039 error = EINVAL; 3040 } 3041 SCTP_INP_WUNLOCK(inp); 3042 break; 3043 } 3044 case SCTP_AUTH_KEY: 3045 { 3046 struct sctp_authkey *sca; 3047 struct sctp_keyhead *shared_keys; 3048 sctp_sharedkey_t *shared_key; 3049 sctp_key_t *key = NULL; 3050 size_t size; 3051 3052 SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize); 3053 SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id); 3054 size = optsize - sizeof(*sca); 3055 3056 if (stcb) { 3057 /* set it on the assoc */ 3058 shared_keys = &stcb->asoc.shared_keys; 3059 /* clear the cached keys for this key id */ 3060 sctp_clear_cachedkeys(stcb, sca->sca_keynumber); 3061 /* 3062 * create the new shared key and 3063 * insert/replace it 3064 */ 3065 if (size > 0) { 3066 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3067 if (key == NULL) { 3068 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3069 error = ENOMEM; 3070 SCTP_TCB_UNLOCK(stcb); 3071 break; 3072 } 3073 } 3074 shared_key = sctp_alloc_sharedkey(); 3075 if (shared_key == NULL) { 3076 sctp_free_key(key); 3077 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3078 error = ENOMEM; 3079 SCTP_TCB_UNLOCK(stcb); 3080 break; 3081 } 3082 shared_key->key = key; 3083 shared_key->keyid = sca->sca_keynumber; 3084 error = sctp_insert_sharedkey(shared_keys, shared_key); 3085 SCTP_TCB_UNLOCK(stcb); 3086 } else { 3087 /* set it on the endpoint */ 3088 SCTP_INP_WLOCK(inp); 3089 shared_keys = &inp->sctp_ep.shared_keys; 3090 /* 3091 * clear the cached keys on all assocs for 3092 * this key id 3093 */ 3094 sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber); 3095 /* 3096 * create the new shared key and 3097 * insert/replace it 3098 */ 3099 if (size > 0) { 3100 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3101 if (key == NULL) { 3102 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3103 error = ENOMEM; 3104 SCTP_INP_WUNLOCK(inp); 3105 break; 3106 } 3107 } 3108 shared_key = sctp_alloc_sharedkey(); 3109 if (shared_key == NULL) { 3110 sctp_free_key(key); 3111 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3112 error = ENOMEM; 3113 SCTP_INP_WUNLOCK(inp); 3114 break; 3115 } 3116 shared_key->key = key; 3117 shared_key->keyid = sca->sca_keynumber; 3118 error = sctp_insert_sharedkey(shared_keys, shared_key); 3119 SCTP_INP_WUNLOCK(inp); 3120 } 3121 break; 3122 } 3123 case SCTP_HMAC_IDENT: 3124 { 3125 struct sctp_hmacalgo *shmac; 3126 sctp_hmaclist_t *hmaclist; 3127 uint16_t hmacid; 3128 uint32_t i; 3129 3130 size_t found; 3131 3132 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize); 3133 if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) { 3134 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3135 error = EINVAL; 3136 break; 3137 } 3138 hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents); 3139 if (hmaclist == NULL) { 3140 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3141 error = ENOMEM; 3142 break; 3143 } 3144 for (i = 0; i < shmac->shmac_number_of_idents; i++) { 3145 hmacid = shmac->shmac_idents[i]; 3146 if (sctp_auth_add_hmacid(hmaclist, hmacid)) { 3147 /* invalid HMACs were found */ ; 3148 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3149 error = EINVAL; 3150 sctp_free_hmaclist(hmaclist); 3151 goto sctp_set_hmac_done; 3152 } 3153 } 3154 found = 0; 3155 for (i = 0; i < hmaclist->num_algo; i++) { 3156 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) { 3157 /* already in list */ 3158 found = 1; 3159 } 3160 } 3161 if (!found) { 3162 sctp_free_hmaclist(hmaclist); 3163 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3164 error = EINVAL; 3165 break; 3166 } 3167 /* set it on the endpoint */ 3168 SCTP_INP_WLOCK(inp); 3169 if (inp->sctp_ep.local_hmacs) 3170 sctp_free_hmaclist(inp->sctp_ep.local_hmacs); 3171 inp->sctp_ep.local_hmacs = hmaclist; 3172 SCTP_INP_WUNLOCK(inp); 3173 sctp_set_hmac_done: 3174 break; 3175 } 3176 case SCTP_AUTH_ACTIVE_KEY: 3177 { 3178 struct sctp_authkeyid *scact; 3179 3180 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, 3181 optsize); 3182 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 3183 3184 /* set the active key on the right place */ 3185 if (stcb) { 3186 /* set the active key on the assoc */ 3187 if (sctp_auth_setactivekey(stcb, 3188 scact->scact_keynumber)) { 3189 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3190 SCTP_FROM_SCTP_USRREQ, 3191 EINVAL); 3192 error = EINVAL; 3193 } 3194 SCTP_TCB_UNLOCK(stcb); 3195 } else { 3196 /* set the active key on the endpoint */ 3197 SCTP_INP_WLOCK(inp); 3198 if (sctp_auth_setactivekey_ep(inp, 3199 scact->scact_keynumber)) { 3200 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3201 SCTP_FROM_SCTP_USRREQ, 3202 EINVAL); 3203 error = EINVAL; 3204 } 3205 SCTP_INP_WUNLOCK(inp); 3206 } 3207 break; 3208 } 3209 case SCTP_AUTH_DELETE_KEY: 3210 { 3211 struct sctp_authkeyid *scdel; 3212 3213 SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, 3214 optsize); 3215 SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id); 3216 3217 /* delete the key from the right place */ 3218 if (stcb) { 3219 if (sctp_delete_sharedkey(stcb, 3220 scdel->scact_keynumber)) { 3221 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3222 SCTP_FROM_SCTP_USRREQ, 3223 EINVAL); 3224 error = EINVAL; 3225 } 3226 SCTP_TCB_UNLOCK(stcb); 3227 } else { 3228 SCTP_INP_WLOCK(inp); 3229 if (sctp_delete_sharedkey_ep(inp, 3230 scdel->scact_keynumber)) { 3231 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3232 SCTP_FROM_SCTP_USRREQ, 3233 EINVAL); 3234 error = EINVAL; 3235 } 3236 SCTP_INP_WUNLOCK(inp); 3237 } 3238 break; 3239 } 3240 case SCTP_AUTH_DEACTIVATE_KEY: 3241 { 3242 struct sctp_authkeyid *keyid; 3243 3244 SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, 3245 optsize); 3246 SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id); 3247 3248 /* deactivate the key from the right place */ 3249 if (stcb) { 3250 if (sctp_deact_sharedkey(stcb, 3251 keyid->scact_keynumber)) { 3252 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3253 SCTP_FROM_SCTP_USRREQ, 3254 EINVAL); 3255 error = EINVAL; 3256 } 3257 SCTP_TCB_UNLOCK(stcb); 3258 } else { 3259 SCTP_INP_WLOCK(inp); 3260 if (sctp_deact_sharedkey_ep(inp, 3261 keyid->scact_keynumber)) { 3262 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3263 SCTP_FROM_SCTP_USRREQ, 3264 EINVAL); 3265 error = EINVAL; 3266 } 3267 SCTP_INP_WUNLOCK(inp); 3268 } 3269 break; 3270 } 3271 3272 case SCTP_RESET_STREAMS: 3273 { 3274 struct sctp_stream_reset *strrst; 3275 uint8_t send_in = 0, send_tsn = 0, send_out = 0, 3276 addstream = 0; 3277 uint16_t addstrmcnt = 0; 3278 int i; 3279 3280 SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize); 3281 SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id); 3282 3283 if (stcb == NULL) { 3284 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 3285 error = ENOENT; 3286 break; 3287 } 3288 if (stcb->asoc.peer_supports_strreset == 0) { 3289 /* 3290 * Peer does not support it, we return 3291 * protocol not supported since this is true 3292 * for this feature and this peer, not the 3293 * socket request in general. 3294 */ 3295 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT); 3296 error = EPROTONOSUPPORT; 3297 SCTP_TCB_UNLOCK(stcb); 3298 break; 3299 } 3300 if (stcb->asoc.stream_reset_outstanding) { 3301 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 3302 error = EALREADY; 3303 SCTP_TCB_UNLOCK(stcb); 3304 break; 3305 } 3306 if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) { 3307 send_in = 1; 3308 } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) { 3309 send_out = 1; 3310 } else if (strrst->strrst_flags == SCTP_RESET_BOTH) { 3311 send_in = 1; 3312 send_out = 1; 3313 } else if (strrst->strrst_flags == SCTP_RESET_TSN) { 3314 send_tsn = 1; 3315 } else if (strrst->strrst_flags == SCTP_RESET_ADD_STREAMS) { 3316 if (send_tsn || 3317 send_in || 3318 send_out) { 3319 /* We can't do that and add streams */ 3320 error = EINVAL; 3321 goto skip_stuff; 3322 } 3323 if (stcb->asoc.stream_reset_outstanding) { 3324 error = EBUSY; 3325 goto skip_stuff; 3326 } 3327 addstream = 1; 3328 /* We allocate here */ 3329 addstrmcnt = strrst->strrst_num_streams; 3330 if ((int)(addstrmcnt + stcb->asoc.streamoutcnt) > 0xffff) { 3331 /* You can't have more than 64k */ 3332 error = EINVAL; 3333 goto skip_stuff; 3334 } 3335 if ((stcb->asoc.strm_realoutsize - stcb->asoc.streamoutcnt) < addstrmcnt) { 3336 /* Need to allocate more */ 3337 struct sctp_stream_out *oldstream; 3338 struct sctp_stream_queue_pending *sp, 3339 *nsp; 3340 int removed; 3341 3342 oldstream = stcb->asoc.strmout; 3343 /* get some more */ 3344 SCTP_MALLOC(stcb->asoc.strmout, struct sctp_stream_out *, 3345 ((stcb->asoc.streamoutcnt + addstrmcnt) * sizeof(struct sctp_stream_out)), 3346 SCTP_M_STRMO); 3347 if (stcb->asoc.strmout == NULL) { 3348 stcb->asoc.strmout = oldstream; 3349 error = ENOMEM; 3350 goto skip_stuff; 3351 } 3352 /* 3353 * Ok now we proceed with copying 3354 * the old out stuff and 3355 * initializing the new stuff. 3356 */ 3357 SCTP_TCB_SEND_LOCK(stcb); 3358 for (i = 0; i < stcb->asoc.streamoutcnt; i++) { 3359 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); 3360 stcb->asoc.strmout[i].next_sequence_sent = oldstream[i].next_sequence_sent; 3361 stcb->asoc.strmout[i].last_msg_incomplete = oldstream[i].last_msg_incomplete; 3362 stcb->asoc.strmout[i].stream_no = i; 3363 if (oldstream[i].next_spoke.tqe_next) { 3364 sctp_remove_from_wheel(stcb, &stcb->asoc, &oldstream[i], 1); 3365 stcb->asoc.strmout[i].next_spoke.tqe_next = NULL; 3366 stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL; 3367 removed = 1; 3368 } else { 3369 /* not on out wheel */ 3370 stcb->asoc.strmout[i].next_spoke.tqe_next = NULL; 3371 stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL; 3372 removed = 0; 3373 } 3374 /* 3375 * now anything on those 3376 * queues? 3377 */ 3378 TAILQ_FOREACH_SAFE(sp, &oldstream[i].outqueue, next, nsp) { 3379 TAILQ_REMOVE(&oldstream[i].outqueue, sp, next); 3380 TAILQ_INSERT_TAIL(&stcb->asoc.strmout[i].outqueue, sp, next); 3381 } 3382 /* Did we disrupt the wheel? */ 3383 if (removed) { 3384 sctp_insert_on_wheel(stcb, 3385 &stcb->asoc, 3386 &stcb->asoc.strmout[i], 3387 1); 3388 } 3389 /* 3390 * Now move assoc pointers 3391 * too 3392 */ 3393 if (stcb->asoc.last_out_stream == &oldstream[i]) { 3394 stcb->asoc.last_out_stream = &stcb->asoc.strmout[i]; 3395 } 3396 if (stcb->asoc.locked_on_sending == &oldstream[i]) { 3397 stcb->asoc.locked_on_sending = &stcb->asoc.strmout[i]; 3398 } 3399 } 3400 /* now the new streams */ 3401 for (i = stcb->asoc.streamoutcnt; i < (stcb->asoc.streamoutcnt + addstrmcnt); i++) { 3402 stcb->asoc.strmout[i].next_sequence_sent = 0x0; 3403 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); 3404 stcb->asoc.strmout[i].stream_no = i; 3405 stcb->asoc.strmout[i].last_msg_incomplete = 0; 3406 stcb->asoc.strmout[i].next_spoke.tqe_next = NULL; 3407 stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL; 3408 } 3409 stcb->asoc.strm_realoutsize = stcb->asoc.streamoutcnt + addstrmcnt; 3410 SCTP_FREE(oldstream, SCTP_M_STRMO); 3411 } 3412 SCTP_TCB_SEND_UNLOCK(stcb); 3413 goto skip_stuff; 3414 } else { 3415 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3416 error = EINVAL; 3417 SCTP_TCB_UNLOCK(stcb); 3418 break; 3419 } 3420 for (i = 0; i < strrst->strrst_num_streams; i++) { 3421 if ((send_in) && 3422 3423 (strrst->strrst_list[i] > stcb->asoc.streamincnt)) { 3424 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3425 error = EINVAL; 3426 goto get_out; 3427 } 3428 if ((send_out) && 3429 (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) { 3430 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3431 error = EINVAL; 3432 goto get_out; 3433 } 3434 } 3435 skip_stuff: 3436 if (error) { 3437 get_out: 3438 SCTP_TCB_UNLOCK(stcb); 3439 break; 3440 } 3441 error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams, 3442 strrst->strrst_list, 3443 send_out, (stcb->asoc.str_reset_seq_in - 3), 3444 send_in, send_tsn, addstream, addstrmcnt); 3445 3446 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED); 3447 SCTP_TCB_UNLOCK(stcb); 3448 } 3449 break; 3450 3451 case SCTP_CONNECT_X: 3452 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 3453 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3454 error = EINVAL; 3455 break; 3456 } 3457 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0); 3458 break; 3459 3460 case SCTP_CONNECT_X_DELAYED: 3461 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 3462 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3463 error = EINVAL; 3464 break; 3465 } 3466 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1); 3467 break; 3468 3469 case SCTP_CONNECT_X_COMPLETE: 3470 { 3471 struct sockaddr *sa; 3472 struct sctp_nets *net; 3473 3474 /* FIXME MT: check correct? */ 3475 SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize); 3476 3477 /* find tcb */ 3478 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 3479 SCTP_INP_RLOCK(inp); 3480 stcb = LIST_FIRST(&inp->sctp_asoc_list); 3481 if (stcb) { 3482 SCTP_TCB_LOCK(stcb); 3483 net = sctp_findnet(stcb, sa); 3484 } 3485 SCTP_INP_RUNLOCK(inp); 3486 } else { 3487 /* 3488 * We increment here since 3489 * sctp_findassociation_ep_addr() wil do a 3490 * decrement if it finds the stcb as long as 3491 * the locked tcb (last argument) is NOT a 3492 * TCB.. aka NULL. 3493 */ 3494 SCTP_INP_INCR_REF(inp); 3495 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL); 3496 if (stcb == NULL) { 3497 SCTP_INP_DECR_REF(inp); 3498 } 3499 } 3500 3501 if (stcb == NULL) { 3502 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 3503 error = ENOENT; 3504 break; 3505 } 3506 if (stcb->asoc.delayed_connection == 1) { 3507 stcb->asoc.delayed_connection = 0; 3508 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 3509 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb, 3510 stcb->asoc.primary_destination, 3511 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9); 3512 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 3513 } else { 3514 /* 3515 * already expired or did not use delayed 3516 * connectx 3517 */ 3518 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 3519 error = EALREADY; 3520 } 3521 SCTP_TCB_UNLOCK(stcb); 3522 } 3523 break; 3524 case SCTP_MAX_BURST: 3525 { 3526 uint8_t *burst; 3527 3528 SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize); 3529 3530 SCTP_INP_WLOCK(inp); 3531 if (*burst) { 3532 inp->sctp_ep.max_burst = *burst; 3533 } 3534 SCTP_INP_WUNLOCK(inp); 3535 } 3536 break; 3537 case SCTP_MAXSEG: 3538 { 3539 struct sctp_assoc_value *av; 3540 int ovh; 3541 3542 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3543 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3544 3545 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3546 ovh = SCTP_MED_OVERHEAD; 3547 } else { 3548 ovh = SCTP_MED_V4_OVERHEAD; 3549 } 3550 if (stcb) { 3551 if (av->assoc_value) { 3552 stcb->asoc.sctp_frag_point = (av->assoc_value + ovh); 3553 } else { 3554 stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3555 } 3556 SCTP_TCB_UNLOCK(stcb); 3557 } else { 3558 SCTP_INP_WLOCK(inp); 3559 /* 3560 * FIXME MT: I think this is not in tune 3561 * with the API ID 3562 */ 3563 if (av->assoc_value) { 3564 inp->sctp_frag_point = (av->assoc_value + ovh); 3565 } else { 3566 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3567 } 3568 SCTP_INP_WUNLOCK(inp); 3569 } 3570 } 3571 break; 3572 case SCTP_EVENTS: 3573 { 3574 struct sctp_event_subscribe *events; 3575 3576 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize); 3577 3578 SCTP_INP_WLOCK(inp); 3579 if (events->sctp_data_io_event) { 3580 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3581 } else { 3582 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3583 } 3584 3585 if (events->sctp_association_event) { 3586 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3587 } else { 3588 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3589 } 3590 3591 if (events->sctp_address_event) { 3592 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3593 } else { 3594 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3595 } 3596 3597 if (events->sctp_send_failure_event) { 3598 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3599 } else { 3600 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3601 } 3602 3603 if (events->sctp_peer_error_event) { 3604 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3605 } else { 3606 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3607 } 3608 3609 if (events->sctp_shutdown_event) { 3610 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3611 } else { 3612 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3613 } 3614 3615 if (events->sctp_partial_delivery_event) { 3616 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3617 } else { 3618 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3619 } 3620 3621 if (events->sctp_adaptation_layer_event) { 3622 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3623 } else { 3624 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3625 } 3626 3627 if (events->sctp_authentication_event) { 3628 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3629 } else { 3630 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3631 } 3632 3633 if (events->sctp_sender_dry_event) { 3634 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT); 3635 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3636 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 3637 stcb = LIST_FIRST(&inp->sctp_asoc_list); 3638 if (stcb) { 3639 SCTP_TCB_LOCK(stcb); 3640 } 3641 if (stcb && 3642 TAILQ_EMPTY(&stcb->asoc.send_queue) && 3643 TAILQ_EMPTY(&stcb->asoc.sent_queue) && 3644 (stcb->asoc.stream_queue_cnt == 0)) { 3645 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED); 3646 } 3647 if (stcb) { 3648 SCTP_TCB_UNLOCK(stcb); 3649 } 3650 } 3651 } else { 3652 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT); 3653 } 3654 3655 if (events->sctp_stream_reset_event) { 3656 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3657 } else { 3658 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3659 } 3660 SCTP_INP_WUNLOCK(inp); 3661 } 3662 break; 3663 3664 case SCTP_ADAPTATION_LAYER: 3665 { 3666 struct sctp_setadaptation *adap_bits; 3667 3668 SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize); 3669 SCTP_INP_WLOCK(inp); 3670 inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind; 3671 SCTP_INP_WUNLOCK(inp); 3672 } 3673 break; 3674 #ifdef SCTP_DEBUG 3675 case SCTP_SET_INITIAL_DBG_SEQ: 3676 { 3677 uint32_t *vvv; 3678 3679 SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize); 3680 SCTP_INP_WLOCK(inp); 3681 inp->sctp_ep.initial_sequence_debug = *vvv; 3682 SCTP_INP_WUNLOCK(inp); 3683 } 3684 break; 3685 #endif 3686 case SCTP_DEFAULT_SEND_PARAM: 3687 { 3688 struct sctp_sndrcvinfo *s_info; 3689 3690 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize); 3691 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 3692 3693 if (stcb) { 3694 if (s_info->sinfo_stream <= stcb->asoc.streamoutcnt) { 3695 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send))); 3696 } else { 3697 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3698 error = EINVAL; 3699 } 3700 SCTP_TCB_UNLOCK(stcb); 3701 } else { 3702 SCTP_INP_WLOCK(inp); 3703 memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send))); 3704 SCTP_INP_WUNLOCK(inp); 3705 } 3706 } 3707 break; 3708 case SCTP_PEER_ADDR_PARAMS: 3709 /* Applys to the specific association */ 3710 { 3711 struct sctp_paddrparams *paddrp; 3712 struct sctp_nets *net; 3713 3714 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize); 3715 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 3716 net = NULL; 3717 if (stcb) { 3718 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 3719 } else { 3720 /* 3721 * We increment here since 3722 * sctp_findassociation_ep_addr() wil do a 3723 * decrement if it finds the stcb as long as 3724 * the locked tcb (last argument) is NOT a 3725 * TCB.. aka NULL. 3726 */ 3727 SCTP_INP_INCR_REF(inp); 3728 stcb = sctp_findassociation_ep_addr(&inp, 3729 (struct sockaddr *)&paddrp->spp_address, 3730 &net, NULL, NULL); 3731 if (stcb == NULL) { 3732 SCTP_INP_DECR_REF(inp); 3733 } 3734 } 3735 if (stcb && (net == NULL)) { 3736 struct sockaddr *sa; 3737 3738 sa = (struct sockaddr *)&paddrp->spp_address; 3739 if (sa->sa_family == AF_INET) { 3740 struct sockaddr_in *sin; 3741 3742 sin = (struct sockaddr_in *)sa; 3743 if (sin->sin_addr.s_addr) { 3744 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3745 SCTP_TCB_UNLOCK(stcb); 3746 error = EINVAL; 3747 break; 3748 } 3749 } else if (sa->sa_family == AF_INET6) { 3750 struct sockaddr_in6 *sin6; 3751 3752 sin6 = (struct sockaddr_in6 *)sa; 3753 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 3754 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3755 SCTP_TCB_UNLOCK(stcb); 3756 error = EINVAL; 3757 break; 3758 } 3759 } else { 3760 error = EAFNOSUPPORT; 3761 SCTP_TCB_UNLOCK(stcb); 3762 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 3763 break; 3764 } 3765 } 3766 /* sanity checks */ 3767 if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) { 3768 if (stcb) 3769 SCTP_TCB_UNLOCK(stcb); 3770 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3771 return (EINVAL); 3772 } 3773 if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) { 3774 if (stcb) 3775 SCTP_TCB_UNLOCK(stcb); 3776 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3777 return (EINVAL); 3778 } 3779 if (stcb) { 3780 /************************TCB SPECIFIC SET ******************/ 3781 /* 3782 * do we change the timer for HB, we run 3783 * only one? 3784 */ 3785 int ovh = 0; 3786 3787 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3788 ovh = SCTP_MED_OVERHEAD; 3789 } else { 3790 ovh = SCTP_MED_V4_OVERHEAD; 3791 } 3792 3793 if (paddrp->spp_hbinterval) 3794 stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval; 3795 else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 3796 stcb->asoc.heart_beat_delay = 0; 3797 3798 /* network sets ? */ 3799 if (net) { 3800 /************************NET SPECIFIC SET ******************/ 3801 if (paddrp->spp_flags & SPP_HB_DEMAND) { 3802 /* on demand HB */ 3803 if (sctp_send_hb(stcb, 1, net) < 0) { 3804 /* asoc destroyed */ 3805 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3806 error = EINVAL; 3807 break; 3808 } 3809 } 3810 if (paddrp->spp_flags & SPP_HB_DISABLE) { 3811 net->dest_state |= SCTP_ADDR_NOHB; 3812 } 3813 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3814 net->dest_state &= ~SCTP_ADDR_NOHB; 3815 } 3816 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3817 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3818 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3819 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3820 } 3821 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3822 net->mtu = paddrp->spp_pathmtu + ovh; 3823 if (net->mtu < stcb->asoc.smallest_mtu) { 3824 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3825 } 3826 } 3827 } 3828 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3829 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3830 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3831 } 3832 } 3833 if (paddrp->spp_pathmaxrxt) 3834 net->failure_threshold = paddrp->spp_pathmaxrxt; 3835 #ifdef INET 3836 if (paddrp->spp_flags & SPP_IPV4_TOS) { 3837 if (net->ro._l_addr.sin.sin_family == AF_INET) { 3838 net->tos_flowlabel = paddrp->spp_ipv4_tos & 0x000000fc; 3839 } 3840 } 3841 #endif 3842 #ifdef INET6 3843 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) { 3844 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 3845 net->tos_flowlabel = paddrp->spp_ipv6_flowlabel; 3846 } 3847 } 3848 #endif 3849 } else { 3850 /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/ 3851 if (paddrp->spp_pathmaxrxt) 3852 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt; 3853 3854 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3855 /* Turn back on the timer */ 3856 stcb->asoc.hb_is_disabled = 0; 3857 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 3858 } 3859 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3860 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3861 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3862 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3863 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3864 } 3865 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3866 net->mtu = paddrp->spp_pathmtu + ovh; 3867 if (net->mtu < stcb->asoc.smallest_mtu) { 3868 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3869 } 3870 } 3871 } 3872 } 3873 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3874 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3875 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3876 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3877 } 3878 } 3879 } 3880 if (paddrp->spp_flags & SPP_HB_DISABLE) { 3881 int cnt_of_unconf = 0; 3882 struct sctp_nets *lnet; 3883 3884 stcb->asoc.hb_is_disabled = 1; 3885 TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) { 3886 if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) { 3887 cnt_of_unconf++; 3888 } 3889 } 3890 /* 3891 * stop the timer ONLY if we 3892 * have no unconfirmed 3893 * addresses 3894 */ 3895 if (cnt_of_unconf == 0) { 3896 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3897 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, 3898 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11); 3899 } 3900 } 3901 } 3902 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3903 /* start up the timer. */ 3904 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3905 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 3906 } 3907 } 3908 #ifdef INET 3909 if (paddrp->spp_flags & SPP_IPV4_TOS) 3910 stcb->asoc.default_tos = paddrp->spp_ipv4_tos & 0x000000fc; 3911 #endif 3912 #ifdef INET6 3913 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) 3914 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel; 3915 #endif 3916 3917 } 3918 SCTP_TCB_UNLOCK(stcb); 3919 } else { 3920 /************************NO TCB, SET TO default stuff ******************/ 3921 SCTP_INP_WLOCK(inp); 3922 /* 3923 * For the TOS/FLOWLABEL stuff you set it 3924 * with the options on the socket 3925 */ 3926 if (paddrp->spp_pathmaxrxt) { 3927 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt; 3928 } 3929 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 3930 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0; 3931 else if (paddrp->spp_hbinterval) { 3932 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL) 3933 paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL; 3934 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval); 3935 } 3936 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3937 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 3938 3939 } else if (paddrp->spp_flags & SPP_HB_DISABLE) { 3940 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 3941 } 3942 SCTP_INP_WUNLOCK(inp); 3943 } 3944 } 3945 break; 3946 case SCTP_RTOINFO: 3947 { 3948 struct sctp_rtoinfo *srto; 3949 uint32_t new_init, new_min, new_max; 3950 3951 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize); 3952 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 3953 3954 if (stcb) { 3955 if (srto->srto_initial) 3956 new_init = srto->srto_initial; 3957 else 3958 new_init = stcb->asoc.initial_rto; 3959 if (srto->srto_max) 3960 new_max = srto->srto_max; 3961 else 3962 new_max = stcb->asoc.maxrto; 3963 if (srto->srto_min) 3964 new_min = srto->srto_min; 3965 else 3966 new_min = stcb->asoc.minrto; 3967 if ((new_min <= new_init) && (new_init <= new_max)) { 3968 stcb->asoc.initial_rto = new_init; 3969 stcb->asoc.maxrto = new_max; 3970 stcb->asoc.minrto = new_min; 3971 } else { 3972 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3973 error = EINVAL; 3974 } 3975 SCTP_TCB_UNLOCK(stcb); 3976 } else { 3977 SCTP_INP_WLOCK(inp); 3978 if (srto->srto_initial) 3979 new_init = srto->srto_initial; 3980 else 3981 new_init = inp->sctp_ep.initial_rto; 3982 if (srto->srto_max) 3983 new_max = srto->srto_max; 3984 else 3985 new_max = inp->sctp_ep.sctp_maxrto; 3986 if (srto->srto_min) 3987 new_min = srto->srto_min; 3988 else 3989 new_min = inp->sctp_ep.sctp_minrto; 3990 if ((new_min <= new_init) && (new_init <= new_max)) { 3991 inp->sctp_ep.initial_rto = new_init; 3992 inp->sctp_ep.sctp_maxrto = new_max; 3993 inp->sctp_ep.sctp_minrto = new_min; 3994 } else { 3995 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3996 error = EINVAL; 3997 } 3998 SCTP_INP_WUNLOCK(inp); 3999 } 4000 } 4001 break; 4002 case SCTP_ASSOCINFO: 4003 { 4004 struct sctp_assocparams *sasoc; 4005 4006 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize); 4007 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 4008 if (sasoc->sasoc_cookie_life) { 4009 /* boundary check the cookie life */ 4010 if (sasoc->sasoc_cookie_life < 1000) 4011 sasoc->sasoc_cookie_life = 1000; 4012 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) { 4013 sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE; 4014 } 4015 } 4016 if (stcb) { 4017 if (sasoc->sasoc_asocmaxrxt) 4018 stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt; 4019 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 4020 sasoc->sasoc_peer_rwnd = 0; 4021 sasoc->sasoc_local_rwnd = 0; 4022 if (sasoc->sasoc_cookie_life) { 4023 stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 4024 } 4025 SCTP_TCB_UNLOCK(stcb); 4026 } else { 4027 SCTP_INP_WLOCK(inp); 4028 if (sasoc->sasoc_asocmaxrxt) 4029 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt; 4030 sasoc->sasoc_number_peer_destinations = 0; 4031 sasoc->sasoc_peer_rwnd = 0; 4032 sasoc->sasoc_local_rwnd = 0; 4033 if (sasoc->sasoc_cookie_life) { 4034 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 4035 } 4036 SCTP_INP_WUNLOCK(inp); 4037 } 4038 } 4039 break; 4040 case SCTP_INITMSG: 4041 { 4042 struct sctp_initmsg *sinit; 4043 4044 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize); 4045 SCTP_INP_WLOCK(inp); 4046 if (sinit->sinit_num_ostreams) 4047 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams; 4048 4049 if (sinit->sinit_max_instreams) 4050 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams; 4051 4052 if (sinit->sinit_max_attempts) 4053 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts; 4054 4055 if (sinit->sinit_max_init_timeo) 4056 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo; 4057 SCTP_INP_WUNLOCK(inp); 4058 } 4059 break; 4060 case SCTP_PRIMARY_ADDR: 4061 { 4062 struct sctp_setprim *spa; 4063 struct sctp_nets *net, *lnet; 4064 4065 SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize); 4066 SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id); 4067 4068 net = NULL; 4069 if (stcb) { 4070 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr); 4071 } else { 4072 /* 4073 * We increment here since 4074 * sctp_findassociation_ep_addr() wil do a 4075 * decrement if it finds the stcb as long as 4076 * the locked tcb (last argument) is NOT a 4077 * TCB.. aka NULL. 4078 */ 4079 SCTP_INP_INCR_REF(inp); 4080 stcb = sctp_findassociation_ep_addr(&inp, 4081 (struct sockaddr *)&spa->ssp_addr, 4082 &net, NULL, NULL); 4083 if (stcb == NULL) { 4084 SCTP_INP_DECR_REF(inp); 4085 } 4086 } 4087 4088 if ((stcb) && (net)) { 4089 if ((net != stcb->asoc.primary_destination) && 4090 (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) { 4091 /* Ok we need to set it */ 4092 lnet = stcb->asoc.primary_destination; 4093 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) { 4094 if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) { 4095 net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH; 4096 } 4097 net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY; 4098 } 4099 } 4100 } else { 4101 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4102 error = EINVAL; 4103 } 4104 if (stcb) { 4105 SCTP_TCB_UNLOCK(stcb); 4106 } 4107 } 4108 break; 4109 case SCTP_SET_DYNAMIC_PRIMARY: 4110 { 4111 union sctp_sockstore *ss; 4112 4113 error = priv_check(curthread, 4114 PRIV_NETINET_RESERVEDPORT); 4115 if (error) 4116 break; 4117 4118 SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize); 4119 /* SUPER USER CHECK? */ 4120 error = sctp_dynamic_set_primary(&ss->sa, vrf_id); 4121 } 4122 break; 4123 case SCTP_SET_PEER_PRIMARY_ADDR: 4124 { 4125 struct sctp_setpeerprim *sspp; 4126 4127 SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize); 4128 SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id); 4129 if (stcb != NULL) { 4130 struct sctp_ifa *ifa; 4131 4132 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr, 4133 stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED); 4134 if (ifa == NULL) { 4135 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4136 error = EINVAL; 4137 goto out_of_it; 4138 } 4139 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 4140 /* 4141 * Must validate the ifa found is in 4142 * our ep 4143 */ 4144 struct sctp_laddr *laddr; 4145 int found = 0; 4146 4147 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4148 if (laddr->ifa == NULL) { 4149 SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n", 4150 __FUNCTION__); 4151 continue; 4152 } 4153 if (laddr->ifa == ifa) { 4154 found = 1; 4155 break; 4156 } 4157 } 4158 if (!found) { 4159 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4160 error = EINVAL; 4161 goto out_of_it; 4162 } 4163 } 4164 if (sctp_set_primary_ip_address_sa(stcb, 4165 (struct sockaddr *)&sspp->sspp_addr) != 0) { 4166 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4167 error = EINVAL; 4168 } 4169 out_of_it: 4170 SCTP_TCB_UNLOCK(stcb); 4171 } else { 4172 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4173 error = EINVAL; 4174 } 4175 4176 } 4177 break; 4178 case SCTP_BINDX_ADD_ADDR: 4179 { 4180 struct sctp_getaddresses *addrs; 4181 size_t sz; 4182 struct thread *td; 4183 4184 td = (struct thread *)p; 4185 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, 4186 optsize); 4187 if (addrs->addr->sa_family == AF_INET) { 4188 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 4189 if (optsize < sz) { 4190 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4191 error = EINVAL; 4192 break; 4193 } 4194 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { 4195 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4196 break; 4197 } 4198 #ifdef INET6 4199 } else if (addrs->addr->sa_family == AF_INET6) { 4200 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 4201 if (optsize < sz) { 4202 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4203 error = EINVAL; 4204 break; 4205 } 4206 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), 4207 (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { 4208 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4209 break; 4210 } 4211 #endif 4212 } else { 4213 error = EAFNOSUPPORT; 4214 break; 4215 } 4216 sctp_bindx_add_address(so, inp, addrs->addr, 4217 addrs->sget_assoc_id, vrf_id, 4218 &error, p); 4219 } 4220 break; 4221 case SCTP_BINDX_REM_ADDR: 4222 { 4223 struct sctp_getaddresses *addrs; 4224 size_t sz; 4225 struct thread *td; 4226 4227 td = (struct thread *)p; 4228 4229 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize); 4230 if (addrs->addr->sa_family == AF_INET) { 4231 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 4232 if (optsize < sz) { 4233 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4234 error = EINVAL; 4235 break; 4236 } 4237 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { 4238 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4239 break; 4240 } 4241 #ifdef INET6 4242 } else if (addrs->addr->sa_family == AF_INET6) { 4243 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 4244 if (optsize < sz) { 4245 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4246 error = EINVAL; 4247 break; 4248 } 4249 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), 4250 (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { 4251 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4252 break; 4253 } 4254 #endif 4255 } else { 4256 error = EAFNOSUPPORT; 4257 break; 4258 } 4259 sctp_bindx_delete_address(so, inp, addrs->addr, 4260 addrs->sget_assoc_id, vrf_id, 4261 &error); 4262 } 4263 break; 4264 default: 4265 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 4266 error = ENOPROTOOPT; 4267 break; 4268 } /* end switch (opt) */ 4269 return (error); 4270 } 4271 4272 int 4273 sctp_ctloutput(struct socket *so, struct sockopt *sopt) 4274 { 4275 void *optval = NULL; 4276 size_t optsize = 0; 4277 struct sctp_inpcb *inp; 4278 void *p; 4279 int error = 0; 4280 4281 inp = (struct sctp_inpcb *)so->so_pcb; 4282 if (inp == 0) { 4283 /* I made the same as TCP since we are not setup? */ 4284 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4285 return (ECONNRESET); 4286 } 4287 if (sopt->sopt_level != IPPROTO_SCTP) { 4288 /* wrong proto level... send back up to IP */ 4289 #ifdef INET6 4290 if (INP_CHECK_SOCKAF(so, AF_INET6)) 4291 error = ip6_ctloutput(so, sopt); 4292 else 4293 #endif /* INET6 */ 4294 error = ip_ctloutput(so, sopt); 4295 return (error); 4296 } 4297 optsize = sopt->sopt_valsize; 4298 if (optsize) { 4299 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT); 4300 if (optval == NULL) { 4301 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS); 4302 return (ENOBUFS); 4303 } 4304 error = sooptcopyin(sopt, optval, optsize, optsize); 4305 if (error) { 4306 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4307 goto out; 4308 } 4309 } 4310 p = (void *)sopt->sopt_td; 4311 if (sopt->sopt_dir == SOPT_SET) { 4312 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p); 4313 } else if (sopt->sopt_dir == SOPT_GET) { 4314 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p); 4315 } else { 4316 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4317 error = EINVAL; 4318 } 4319 if ((error == 0) && (optval != NULL)) { 4320 error = sooptcopyout(sopt, optval, optsize); 4321 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4322 } else if (optval != NULL) { 4323 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4324 } 4325 out: 4326 return (error); 4327 } 4328 4329 4330 static int 4331 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p) 4332 { 4333 int error = 0; 4334 int create_lock_on = 0; 4335 uint32_t vrf_id; 4336 struct sctp_inpcb *inp; 4337 struct sctp_tcb *stcb = NULL; 4338 4339 inp = (struct sctp_inpcb *)so->so_pcb; 4340 if (inp == 0) { 4341 /* I made the same as TCP since we are not setup? */ 4342 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4343 return (ECONNRESET); 4344 } 4345 if (addr == NULL) { 4346 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4347 return EINVAL; 4348 } 4349 #ifdef INET6 4350 if (addr->sa_family == AF_INET6) { 4351 struct sockaddr_in6 *sin6p; 4352 4353 if (addr->sa_len != sizeof(struct sockaddr_in6)) { 4354 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4355 return (EINVAL); 4356 } 4357 sin6p = (struct sockaddr_in6 *)addr; 4358 if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) { 4359 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 4360 return (error); 4361 } 4362 } else 4363 #endif 4364 if (addr->sa_family == AF_INET) { 4365 struct sockaddr_in *sinp; 4366 4367 if (addr->sa_len != sizeof(struct sockaddr_in)) { 4368 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4369 return (EINVAL); 4370 } 4371 sinp = (struct sockaddr_in *)addr; 4372 if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) { 4373 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 4374 return (error); 4375 } 4376 } else { 4377 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT); 4378 return (EAFNOSUPPORT); 4379 } 4380 SCTP_INP_INCR_REF(inp); 4381 SCTP_ASOC_CREATE_LOCK(inp); 4382 create_lock_on = 1; 4383 4384 4385 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 4386 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 4387 /* Should I really unlock ? */ 4388 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 4389 error = EFAULT; 4390 goto out_now; 4391 } 4392 #ifdef INET6 4393 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 4394 (addr->sa_family == AF_INET6)) { 4395 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4396 error = EINVAL; 4397 goto out_now; 4398 } 4399 #endif /* INET6 */ 4400 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 4401 SCTP_PCB_FLAGS_UNBOUND) { 4402 /* Bind a ephemeral port */ 4403 error = sctp_inpcb_bind(so, NULL, NULL, p); 4404 if (error) { 4405 goto out_now; 4406 } 4407 } 4408 /* Now do we connect? */ 4409 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) && 4410 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) { 4411 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4412 error = EINVAL; 4413 goto out_now; 4414 } 4415 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 4416 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 4417 /* We are already connected AND the TCP model */ 4418 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 4419 error = EADDRINUSE; 4420 goto out_now; 4421 } 4422 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4423 SCTP_INP_RLOCK(inp); 4424 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4425 SCTP_INP_RUNLOCK(inp); 4426 } else { 4427 /* 4428 * We increment here since sctp_findassociation_ep_addr() 4429 * will do a decrement if it finds the stcb as long as the 4430 * locked tcb (last argument) is NOT a TCB.. aka NULL. 4431 */ 4432 SCTP_INP_INCR_REF(inp); 4433 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL); 4434 if (stcb == NULL) { 4435 SCTP_INP_DECR_REF(inp); 4436 } else { 4437 SCTP_TCB_UNLOCK(stcb); 4438 } 4439 } 4440 if (stcb != NULL) { 4441 /* Already have or am bring up an association */ 4442 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 4443 error = EALREADY; 4444 goto out_now; 4445 } 4446 vrf_id = inp->def_vrf_id; 4447 /* We are GOOD to go */ 4448 stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p); 4449 if (stcb == NULL) { 4450 /* Gak! no memory */ 4451 goto out_now; 4452 } 4453 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 4454 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 4455 /* Set the connected flag so we can queue data */ 4456 SOCKBUF_LOCK(&so->so_rcv); 4457 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; 4458 SOCKBUF_UNLOCK(&so->so_rcv); 4459 SOCKBUF_LOCK(&so->so_snd); 4460 so->so_snd.sb_state &= ~SBS_CANTSENDMORE; 4461 SOCKBUF_UNLOCK(&so->so_snd); 4462 SOCK_LOCK(so); 4463 so->so_state &= ~SS_ISDISCONNECTING; 4464 SOCK_UNLOCK(so); 4465 soisconnecting(so); 4466 } 4467 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 4468 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 4469 4470 /* initialize authentication parameters for the assoc */ 4471 sctp_initialize_auth_params(inp, stcb); 4472 4473 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 4474 SCTP_TCB_UNLOCK(stcb); 4475 out_now: 4476 if (create_lock_on) { 4477 SCTP_ASOC_CREATE_UNLOCK(inp); 4478 } 4479 SCTP_INP_DECR_REF(inp); 4480 return error; 4481 } 4482 4483 int 4484 sctp_listen(struct socket *so, int backlog, struct thread *p) 4485 { 4486 /* 4487 * Note this module depends on the protocol processing being called 4488 * AFTER any socket level flags and backlog are applied to the 4489 * socket. The traditional way that the socket flags are applied is 4490 * AFTER protocol processing. We have made a change to the 4491 * sys/kern/uipc_socket.c module to reverse this but this MUST be in 4492 * place if the socket API for SCTP is to work properly. 4493 */ 4494 4495 int error = 0; 4496 struct sctp_inpcb *inp; 4497 4498 inp = (struct sctp_inpcb *)so->so_pcb; 4499 if (inp == 0) { 4500 /* I made the same as TCP since we are not setup? */ 4501 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4502 return (ECONNRESET); 4503 } 4504 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) { 4505 /* See if we have a listener */ 4506 struct sctp_inpcb *tinp; 4507 union sctp_sockstore store, *sp; 4508 4509 sp = &store; 4510 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 4511 /* not bound all */ 4512 struct sctp_laddr *laddr; 4513 4514 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4515 memcpy(&store, &laddr->ifa->address, sizeof(store)); 4516 sp->sin.sin_port = inp->sctp_lport; 4517 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id); 4518 if (tinp && (tinp != inp) && 4519 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) && 4520 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 4521 (tinp->sctp_socket->so_qlimit)) { 4522 /* 4523 * we have a listener already and 4524 * its not this inp. 4525 */ 4526 SCTP_INP_DECR_REF(tinp); 4527 return (EADDRINUSE); 4528 } else if (tinp) { 4529 SCTP_INP_DECR_REF(tinp); 4530 } 4531 } 4532 } else { 4533 /* Setup a local addr bound all */ 4534 memset(&store, 0, sizeof(store)); 4535 store.sin.sin_port = inp->sctp_lport; 4536 #ifdef INET6 4537 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 4538 store.sa.sa_family = AF_INET6; 4539 store.sa.sa_len = sizeof(struct sockaddr_in6); 4540 } 4541 #endif 4542 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) { 4543 store.sa.sa_family = AF_INET; 4544 store.sa.sa_len = sizeof(struct sockaddr_in); 4545 } 4546 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id); 4547 if (tinp && (tinp != inp) && 4548 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) && 4549 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 4550 (tinp->sctp_socket->so_qlimit)) { 4551 /* 4552 * we have a listener already and its not 4553 * this inp. 4554 */ 4555 SCTP_INP_DECR_REF(tinp); 4556 return (EADDRINUSE); 4557 } else if (tinp) { 4558 SCTP_INP_DECR_REF(inp); 4559 } 4560 } 4561 } 4562 SCTP_INP_RLOCK(inp); 4563 #ifdef SCTP_LOCK_LOGGING 4564 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) { 4565 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK); 4566 } 4567 #endif 4568 SOCK_LOCK(so); 4569 error = solisten_proto_check(so); 4570 if (error) { 4571 SOCK_UNLOCK(so); 4572 SCTP_INP_RUNLOCK(inp); 4573 return (error); 4574 } 4575 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) && 4576 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 4577 /* 4578 * The unlucky case - We are in the tcp pool with this guy. 4579 * - Someone else is in the main inp slot. - We must move 4580 * this guy (the listener) to the main slot - We must then 4581 * move the guy that was listener to the TCP Pool. 4582 */ 4583 if (sctp_swap_inpcb_for_listen(inp)) { 4584 goto in_use; 4585 } 4586 } 4587 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 4588 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 4589 /* We are already connected AND the TCP model */ 4590 in_use: 4591 SCTP_INP_RUNLOCK(inp); 4592 SOCK_UNLOCK(so); 4593 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 4594 return (EADDRINUSE); 4595 } 4596 SCTP_INP_RUNLOCK(inp); 4597 if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) { 4598 /* We must do a bind. */ 4599 SOCK_UNLOCK(so); 4600 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) { 4601 /* bind error, probably perm */ 4602 return (error); 4603 } 4604 SOCK_LOCK(so); 4605 } 4606 /* It appears for 7.0 and on, we must always call this. */ 4607 solisten_proto(so, backlog); 4608 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 4609 /* remove the ACCEPTCONN flag for one-to-many sockets */ 4610 so->so_options &= ~SO_ACCEPTCONN; 4611 } 4612 if (backlog == 0) { 4613 /* turning off listen */ 4614 so->so_options &= ~SO_ACCEPTCONN; 4615 } 4616 SOCK_UNLOCK(so); 4617 return (error); 4618 } 4619 4620 static int sctp_defered_wakeup_cnt = 0; 4621 4622 int 4623 sctp_accept(struct socket *so, struct sockaddr **addr) 4624 { 4625 struct sctp_tcb *stcb; 4626 struct sctp_inpcb *inp; 4627 union sctp_sockstore store; 4628 4629 #ifdef INET6 4630 int error; 4631 4632 #endif 4633 inp = (struct sctp_inpcb *)so->so_pcb; 4634 4635 if (inp == 0) { 4636 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4637 return (ECONNRESET); 4638 } 4639 SCTP_INP_RLOCK(inp); 4640 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 4641 SCTP_INP_RUNLOCK(inp); 4642 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 4643 return (EOPNOTSUPP); 4644 } 4645 if (so->so_state & SS_ISDISCONNECTED) { 4646 SCTP_INP_RUNLOCK(inp); 4647 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED); 4648 return (ECONNABORTED); 4649 } 4650 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4651 if (stcb == NULL) { 4652 SCTP_INP_RUNLOCK(inp); 4653 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4654 return (ECONNRESET); 4655 } 4656 SCTP_TCB_LOCK(stcb); 4657 SCTP_INP_RUNLOCK(inp); 4658 store = stcb->asoc.primary_destination->ro._l_addr; 4659 stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE; 4660 SCTP_TCB_UNLOCK(stcb); 4661 switch (store.sa.sa_family) { 4662 case AF_INET: 4663 { 4664 struct sockaddr_in *sin; 4665 4666 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4667 if (sin == NULL) 4668 return (ENOMEM); 4669 sin->sin_family = AF_INET; 4670 sin->sin_len = sizeof(*sin); 4671 sin->sin_port = ((struct sockaddr_in *)&store)->sin_port; 4672 sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr; 4673 *addr = (struct sockaddr *)sin; 4674 break; 4675 } 4676 #ifdef INET6 4677 case AF_INET6: 4678 { 4679 struct sockaddr_in6 *sin6; 4680 4681 SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6); 4682 if (sin6 == NULL) 4683 return (ENOMEM); 4684 sin6->sin6_family = AF_INET6; 4685 sin6->sin6_len = sizeof(*sin6); 4686 sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port; 4687 4688 sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr; 4689 if ((error = sa6_recoverscope(sin6)) != 0) { 4690 SCTP_FREE_SONAME(sin6); 4691 return (error); 4692 } 4693 *addr = (struct sockaddr *)sin6; 4694 break; 4695 } 4696 #endif 4697 default: 4698 /* TSNH */ 4699 break; 4700 } 4701 /* Wake any delayed sleep action */ 4702 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { 4703 SCTP_INP_WLOCK(inp); 4704 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE; 4705 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) { 4706 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT; 4707 SCTP_INP_WUNLOCK(inp); 4708 SOCKBUF_LOCK(&inp->sctp_socket->so_snd); 4709 if (sowriteable(inp->sctp_socket)) { 4710 sowwakeup_locked(inp->sctp_socket); 4711 } else { 4712 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd); 4713 } 4714 SCTP_INP_WLOCK(inp); 4715 } 4716 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) { 4717 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT; 4718 SCTP_INP_WUNLOCK(inp); 4719 SOCKBUF_LOCK(&inp->sctp_socket->so_rcv); 4720 if (soreadable(inp->sctp_socket)) { 4721 sctp_defered_wakeup_cnt++; 4722 sorwakeup_locked(inp->sctp_socket); 4723 } else { 4724 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv); 4725 } 4726 SCTP_INP_WLOCK(inp); 4727 } 4728 SCTP_INP_WUNLOCK(inp); 4729 } 4730 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 4731 SCTP_TCB_LOCK(stcb); 4732 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7); 4733 } 4734 return (0); 4735 } 4736 4737 int 4738 sctp_ingetaddr(struct socket *so, struct sockaddr **addr) 4739 { 4740 struct sockaddr_in *sin; 4741 uint32_t vrf_id; 4742 struct sctp_inpcb *inp; 4743 struct sctp_ifa *sctp_ifa; 4744 4745 /* 4746 * Do the malloc first in case it blocks. 4747 */ 4748 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4749 if (sin == NULL) 4750 return (ENOMEM); 4751 sin->sin_family = AF_INET; 4752 sin->sin_len = sizeof(*sin); 4753 inp = (struct sctp_inpcb *)so->so_pcb; 4754 if (!inp) { 4755 SCTP_FREE_SONAME(sin); 4756 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4757 return ECONNRESET; 4758 } 4759 SCTP_INP_RLOCK(inp); 4760 sin->sin_port = inp->sctp_lport; 4761 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 4762 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4763 struct sctp_tcb *stcb; 4764 struct sockaddr_in *sin_a; 4765 struct sctp_nets *net; 4766 int fnd; 4767 4768 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4769 if (stcb == NULL) { 4770 goto notConn; 4771 } 4772 fnd = 0; 4773 sin_a = NULL; 4774 SCTP_TCB_LOCK(stcb); 4775 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4776 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 4777 if (sin_a == NULL) 4778 /* this will make coverity happy */ 4779 continue; 4780 4781 if (sin_a->sin_family == AF_INET) { 4782 fnd = 1; 4783 break; 4784 } 4785 } 4786 if ((!fnd) || (sin_a == NULL)) { 4787 /* punt */ 4788 SCTP_TCB_UNLOCK(stcb); 4789 goto notConn; 4790 } 4791 vrf_id = inp->def_vrf_id; 4792 sctp_ifa = sctp_source_address_selection(inp, 4793 stcb, 4794 (sctp_route_t *) & net->ro, 4795 net, 0, vrf_id); 4796 if (sctp_ifa) { 4797 sin->sin_addr = sctp_ifa->address.sin.sin_addr; 4798 sctp_free_ifa(sctp_ifa); 4799 } 4800 SCTP_TCB_UNLOCK(stcb); 4801 } else { 4802 /* For the bound all case you get back 0 */ 4803 notConn: 4804 sin->sin_addr.s_addr = 0; 4805 } 4806 4807 } else { 4808 /* Take the first IPv4 address in the list */ 4809 struct sctp_laddr *laddr; 4810 int fnd = 0; 4811 4812 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4813 if (laddr->ifa->address.sa.sa_family == AF_INET) { 4814 struct sockaddr_in *sin_a; 4815 4816 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa; 4817 sin->sin_addr = sin_a->sin_addr; 4818 fnd = 1; 4819 break; 4820 } 4821 } 4822 if (!fnd) { 4823 SCTP_FREE_SONAME(sin); 4824 SCTP_INP_RUNLOCK(inp); 4825 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4826 return ENOENT; 4827 } 4828 } 4829 SCTP_INP_RUNLOCK(inp); 4830 (*addr) = (struct sockaddr *)sin; 4831 return (0); 4832 } 4833 4834 int 4835 sctp_peeraddr(struct socket *so, struct sockaddr **addr) 4836 { 4837 struct sockaddr_in *sin = (struct sockaddr_in *)*addr; 4838 int fnd; 4839 struct sockaddr_in *sin_a; 4840 struct sctp_inpcb *inp; 4841 struct sctp_tcb *stcb; 4842 struct sctp_nets *net; 4843 4844 /* Do the malloc first in case it blocks. */ 4845 inp = (struct sctp_inpcb *)so->so_pcb; 4846 if ((inp == NULL) || 4847 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { 4848 /* UDP type and listeners will drop out here */ 4849 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 4850 return (ENOTCONN); 4851 } 4852 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4853 if (sin == NULL) 4854 return (ENOMEM); 4855 sin->sin_family = AF_INET; 4856 sin->sin_len = sizeof(*sin); 4857 4858 /* We must recapture incase we blocked */ 4859 inp = (struct sctp_inpcb *)so->so_pcb; 4860 if (!inp) { 4861 SCTP_FREE_SONAME(sin); 4862 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4863 return ECONNRESET; 4864 } 4865 SCTP_INP_RLOCK(inp); 4866 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4867 if (stcb) { 4868 SCTP_TCB_LOCK(stcb); 4869 } 4870 SCTP_INP_RUNLOCK(inp); 4871 if (stcb == NULL) { 4872 SCTP_FREE_SONAME(sin); 4873 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4874 return ECONNRESET; 4875 } 4876 fnd = 0; 4877 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4878 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 4879 if (sin_a->sin_family == AF_INET) { 4880 fnd = 1; 4881 sin->sin_port = stcb->rport; 4882 sin->sin_addr = sin_a->sin_addr; 4883 break; 4884 } 4885 } 4886 SCTP_TCB_UNLOCK(stcb); 4887 if (!fnd) { 4888 /* No IPv4 address */ 4889 SCTP_FREE_SONAME(sin); 4890 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4891 return ENOENT; 4892 } 4893 (*addr) = (struct sockaddr *)sin; 4894 return (0); 4895 } 4896 4897 struct pr_usrreqs sctp_usrreqs = { 4898 .pru_abort = sctp_abort, 4899 .pru_accept = sctp_accept, 4900 .pru_attach = sctp_attach, 4901 .pru_bind = sctp_bind, 4902 .pru_connect = sctp_connect, 4903 .pru_control = in_control, 4904 .pru_close = sctp_close, 4905 .pru_detach = sctp_close, 4906 .pru_sopoll = sopoll_generic, 4907 .pru_flush = sctp_flush, 4908 .pru_disconnect = sctp_disconnect, 4909 .pru_listen = sctp_listen, 4910 .pru_peeraddr = sctp_peeraddr, 4911 .pru_send = sctp_sendm, 4912 .pru_shutdown = sctp_shutdown, 4913 .pru_sockaddr = sctp_ingetaddr, 4914 .pru_sosend = sctp_sosend, 4915 .pru_soreceive = sctp_soreceive 4916 }; 4917