1 /*- 2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * a) Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * 10 * b) Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the distribution. 13 * 14 * c) Neither the name of Cisco Systems, Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $ */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 #include <netinet/sctp_os.h> 36 #include <sys/proc.h> 37 #include <netinet/sctp_pcb.h> 38 #include <netinet/sctp_header.h> 39 #include <netinet/sctp_var.h> 40 #if defined(INET6) 41 #include <netinet6/sctp6_var.h> 42 #endif 43 #include <netinet/sctp_sysctl.h> 44 #include <netinet/sctp_output.h> 45 #include <netinet/sctp_uio.h> 46 #include <netinet/sctp_asconf.h> 47 #include <netinet/sctputil.h> 48 #include <netinet/sctp_indata.h> 49 #include <netinet/sctp_timer.h> 50 #include <netinet/sctp_auth.h> 51 #include <netinet/sctp_bsd_addr.h> 52 #include <netinet/sctp_cc_functions.h> 53 54 55 56 57 void 58 sctp_init(void) 59 { 60 /* Init the SCTP pcb in sctp_pcb.c */ 61 u_long sb_max_adj; 62 63 sctp_pcb_init(); 64 65 66 if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE) 67 sctp_max_chunks_on_queue = (nmbclusters / 8); 68 /* 69 * Allow a user to take no more than 1/2 the number of clusters or 70 * the SB_MAX whichever is smaller for the send window. 71 */ 72 sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES)); 73 sctp_sendspace = min(sb_max_adj, 74 (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT)); 75 /* 76 * Now for the recv window, should we take the same amount? or 77 * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For 78 * now I will just copy. 79 */ 80 sctp_recvspace = sctp_sendspace; 81 82 } 83 84 85 86 /* 87 * cleanup of the sctppcbinfo structure. 88 * Assumes that the sctppcbinfo lock is held. 89 */ 90 void 91 sctp_pcbinfo_cleanup(void) 92 { 93 /* free the hash tables */ 94 if (sctppcbinfo.sctp_asochash != NULL) 95 SCTP_HASH_FREE(sctppcbinfo.sctp_asochash, sctppcbinfo.hashasocmark); 96 if (sctppcbinfo.sctp_ephash != NULL) 97 SCTP_HASH_FREE(sctppcbinfo.sctp_ephash, sctppcbinfo.hashmark); 98 if (sctppcbinfo.sctp_tcpephash != NULL) 99 SCTP_HASH_FREE(sctppcbinfo.sctp_tcpephash, sctppcbinfo.hashtcpmark); 100 if (sctppcbinfo.sctp_restarthash != NULL) 101 SCTP_HASH_FREE(sctppcbinfo.sctp_restarthash, sctppcbinfo.hashrestartmark); 102 } 103 104 105 static void 106 sctp_pathmtu_adjustment(struct sctp_inpcb *inp, 107 struct sctp_tcb *stcb, 108 struct sctp_nets *net, 109 uint16_t nxtsz) 110 { 111 struct sctp_tmit_chunk *chk; 112 113 /* Adjust that too */ 114 stcb->asoc.smallest_mtu = nxtsz; 115 /* now off to subtract IP_DF flag if needed */ 116 #ifdef SCTP_PRINT_FOR_B_AND_M 117 SCTP_PRINTF("sctp_pathmtu_adjust called inp:%p stcb:%p net:%p nxtsz:%d\n", 118 inp, stcb, net, nxtsz); 119 #endif 120 TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) { 121 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) { 122 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 123 } 124 } 125 TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { 126 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) { 127 /* 128 * For this guy we also mark for immediate resend 129 * since we sent to big of chunk 130 */ 131 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 132 if (chk->sent != SCTP_DATAGRAM_RESEND) { 133 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt); 134 } 135 chk->sent = SCTP_DATAGRAM_RESEND; 136 chk->rec.data.doing_fast_retransmit = 0; 137 if (sctp_logging_level & SCTP_FLIGHT_LOGGING_ENABLE) { 138 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU, 139 chk->whoTo->flight_size, 140 chk->book_size, 141 (uintptr_t) chk->whoTo, 142 chk->rec.data.TSN_seq); 143 } 144 /* Clear any time so NO RTT is being done */ 145 chk->do_rtt = 0; 146 sctp_flight_size_decrease(chk); 147 sctp_total_flight_decrease(stcb, chk); 148 } 149 } 150 } 151 152 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 = find_next_best_mtu(totsz); 198 } 199 /* Stop any PMTU timer */ 200 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 201 tmr_stopped = 1; 202 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 203 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1); 204 } 205 /* Adjust destination size limit */ 206 if (net->mtu > nxtsz) { 207 net->mtu = nxtsz; 208 } 209 /* now what about the ep? */ 210 if (stcb->asoc.smallest_mtu > nxtsz) { 211 #ifdef SCTP_PRINT_FOR_B_AND_M 212 SCTP_PRINTF("notify_mbuf (ICMP) calls sctp_pathmtu_adjust mtu:%d\n", 213 nxtsz); 214 #endif 215 sctp_pathmtu_adjustment(inp, stcb, net, nxtsz); 216 } 217 if (tmr_stopped) 218 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 219 220 SCTP_TCB_UNLOCK(stcb); 221 } 222 223 224 void 225 sctp_notify(struct sctp_inpcb *inp, 226 struct ip *ip, 227 struct sctphdr *sh, 228 struct sockaddr *to, 229 struct sctp_tcb *stcb, 230 struct sctp_nets *net) 231 { 232 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 233 struct socket *so; 234 235 #endif 236 /* protection */ 237 int reason; 238 struct icmp *icmph; 239 240 241 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 242 (sh == NULL) || (to == NULL)) { 243 if (stcb) 244 SCTP_TCB_UNLOCK(stcb); 245 return; 246 } 247 /* First job is to verify the vtag matches what I would send */ 248 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 249 SCTP_TCB_UNLOCK(stcb); 250 return; 251 } 252 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 253 sizeof(struct ip))); 254 if (icmph->icmp_type != ICMP_UNREACH) { 255 /* We only care about unreachable */ 256 SCTP_TCB_UNLOCK(stcb); 257 return; 258 } 259 if ((icmph->icmp_code == ICMP_UNREACH_NET) || 260 (icmph->icmp_code == ICMP_UNREACH_HOST) || 261 (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) || 262 (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) || 263 (icmph->icmp_code == ICMP_UNREACH_ISOLATED) || 264 (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) || 265 (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) || 266 (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) { 267 268 /* 269 * Hmm reachablity problems we must examine closely. If its 270 * not reachable, we may have lost a network. Or if there is 271 * NO protocol at the other end named SCTP. well we consider 272 * it a OOTB abort. 273 */ 274 if (net->dest_state & SCTP_ADDR_REACHABLE) { 275 /* Ok that destination is NOT reachable */ 276 SCTP_PRINTF("ICMP (thresh %d/%d) takes interface %p down\n", 277 net->error_count, 278 net->failure_threshold, 279 net); 280 281 net->dest_state &= ~SCTP_ADDR_REACHABLE; 282 net->dest_state |= SCTP_ADDR_NOT_REACHABLE; 283 /* 284 * JRS 5/14/07 - If a destination is unreachable, 285 * the PF bit is turned off. This allows an 286 * unambiguous use of the PF bit for destinations 287 * that are reachable but potentially failed. If the 288 * destination is set to the unreachable state, also 289 * set the destination to the PF state. 290 */ 291 /* 292 * Add debug message here if destination is not in 293 * PF state. 294 */ 295 /* Stop any running T3 timers here? */ 296 if (sctp_cmt_on_off && sctp_cmt_pf) { 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 } 399 } 400 return; 401 } 402 403 static int 404 sctp_getcred(SYSCTL_HANDLER_ARGS) 405 { 406 struct xucred xuc; 407 struct sockaddr_in addrs[2]; 408 struct sctp_inpcb *inp; 409 struct sctp_nets *net; 410 struct sctp_tcb *stcb; 411 int error; 412 uint32_t vrf_id; 413 414 /* FIX, for non-bsd is this right? */ 415 vrf_id = SCTP_DEFAULT_VRFID; 416 417 error = priv_check(req->td, PRIV_NETINET_GETCRED); 418 419 if (error) 420 return (error); 421 422 error = SYSCTL_IN(req, addrs, sizeof(addrs)); 423 if (error) 424 return (error); 425 426 stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]), 427 sintosa(&addrs[1]), 428 &inp, &net, 1, vrf_id); 429 if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) { 430 if ((inp != NULL) && (stcb == NULL)) { 431 /* reduce ref-count */ 432 SCTP_INP_WLOCK(inp); 433 SCTP_INP_DECR_REF(inp); 434 goto cred_can_cont; 435 } 436 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 437 error = ENOENT; 438 goto out; 439 } 440 SCTP_TCB_UNLOCK(stcb); 441 /* 442 * We use the write lock here, only since in the error leg we need 443 * it. If we used RLOCK, then we would have to 444 * wlock/decr/unlock/rlock. Which in theory could create a hole. 445 * Better to use higher wlock. 446 */ 447 SCTP_INP_WLOCK(inp); 448 cred_can_cont: 449 error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket); 450 if (error) { 451 SCTP_INP_WUNLOCK(inp); 452 goto out; 453 } 454 cru2x(inp->sctp_socket->so_cred, &xuc); 455 SCTP_INP_WUNLOCK(inp); 456 error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred)); 457 out: 458 return (error); 459 } 460 461 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW, 462 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection"); 463 464 465 static void 466 sctp_abort(struct socket *so) 467 { 468 struct sctp_inpcb *inp; 469 uint32_t flags; 470 471 inp = (struct sctp_inpcb *)so->so_pcb; 472 if (inp == 0) { 473 return; 474 } 475 sctp_must_try_again: 476 flags = inp->sctp_flags; 477 #ifdef SCTP_LOG_CLOSING 478 sctp_log_closing(inp, NULL, 17); 479 #endif 480 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 481 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 482 #ifdef SCTP_LOG_CLOSING 483 sctp_log_closing(inp, NULL, 16); 484 #endif 485 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 486 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 487 SOCK_LOCK(so); 488 SCTP_SB_CLEAR(so->so_snd); 489 /* 490 * same for the rcv ones, they are only here for the 491 * accounting/select. 492 */ 493 SCTP_SB_CLEAR(so->so_rcv); 494 495 /* Now null out the reference, we are completely detached. */ 496 so->so_pcb = NULL; 497 SOCK_UNLOCK(so); 498 } else { 499 flags = inp->sctp_flags; 500 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 501 goto sctp_must_try_again; 502 } 503 } 504 return; 505 } 506 507 static int 508 sctp_attach(struct socket *so, int proto, struct thread *p) 509 { 510 struct sctp_inpcb *inp; 511 struct inpcb *ip_inp; 512 int error; 513 uint32_t vrf_id = SCTP_DEFAULT_VRFID; 514 515 #ifdef IPSEC 516 uint32_t flags; 517 518 #endif 519 inp = (struct sctp_inpcb *)so->so_pcb; 520 if (inp != 0) { 521 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 522 return EINVAL; 523 } 524 error = SCTP_SORESERVE(so, sctp_sendspace, sctp_recvspace); 525 if (error) { 526 return error; 527 } 528 error = sctp_inpcb_alloc(so, vrf_id); 529 if (error) { 530 return error; 531 } 532 inp = (struct sctp_inpcb *)so->so_pcb; 533 SCTP_INP_WLOCK(inp); 534 inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */ 535 ip_inp = &inp->ip_inp.inp; 536 ip_inp->inp_vflag |= INP_IPV4; 537 ip_inp->inp_ip_ttl = ip_defttl; 538 #ifdef IPSEC 539 error = ipsec_init_policy(so, &ip_inp->inp_sp); 540 #ifdef SCTP_LOG_CLOSING 541 sctp_log_closing(inp, NULL, 17); 542 #endif 543 if (error != 0) { 544 flags = inp->sctp_flags; 545 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 546 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 547 #ifdef SCTP_LOG_CLOSING 548 sctp_log_closing(inp, NULL, 15); 549 #endif 550 SCTP_INP_WUNLOCK(inp); 551 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 552 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 553 } else { 554 SCTP_INP_WUNLOCK(inp); 555 } 556 return error; 557 } 558 #endif /* IPSEC */ 559 SCTP_INP_WUNLOCK(inp); 560 return 0; 561 } 562 563 static int 564 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p) 565 { 566 struct sctp_inpcb *inp = NULL; 567 int error; 568 569 #ifdef INET6 570 if (addr && addr->sa_family != AF_INET) { 571 /* must be a v4 address! */ 572 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 573 return EINVAL; 574 } 575 #endif /* INET6 */ 576 if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) { 577 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 578 return EINVAL; 579 } 580 inp = (struct sctp_inpcb *)so->so_pcb; 581 if (inp == 0) { 582 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 583 return EINVAL; 584 } 585 error = sctp_inpcb_bind(so, addr, NULL, p); 586 return error; 587 } 588 589 void 590 sctp_close(struct socket *so) 591 { 592 struct sctp_inpcb *inp; 593 uint32_t flags; 594 595 inp = (struct sctp_inpcb *)so->so_pcb; 596 if (inp == 0) 597 return; 598 599 /* 600 * Inform all the lower layer assoc that we are done. 601 */ 602 sctp_must_try_again: 603 flags = inp->sctp_flags; 604 #ifdef SCTP_LOG_CLOSING 605 sctp_log_closing(inp, NULL, 17); 606 #endif 607 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 608 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 609 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) || 610 (so->so_rcv.sb_cc > 0)) { 611 #ifdef SCTP_LOG_CLOSING 612 sctp_log_closing(inp, NULL, 13); 613 #endif 614 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 615 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 616 } else { 617 #ifdef SCTP_LOG_CLOSING 618 sctp_log_closing(inp, NULL, 14); 619 #endif 620 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE, 621 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 622 } 623 /* 624 * The socket is now detached, no matter what the state of 625 * the SCTP association. 626 */ 627 SOCK_LOCK(so); 628 SCTP_SB_CLEAR(so->so_snd); 629 /* 630 * same for the rcv ones, they are only here for the 631 * accounting/select. 632 */ 633 SCTP_SB_CLEAR(so->so_rcv); 634 635 /* Now null out the reference, we are completely detached. */ 636 so->so_pcb = NULL; 637 SOCK_UNLOCK(so); 638 } else { 639 flags = inp->sctp_flags; 640 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 641 goto sctp_must_try_again; 642 } 643 } 644 return; 645 } 646 647 648 int 649 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 650 struct mbuf *control, struct thread *p); 651 652 653 int 654 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 655 struct mbuf *control, struct thread *p) 656 { 657 struct sctp_inpcb *inp; 658 int error; 659 660 inp = (struct sctp_inpcb *)so->so_pcb; 661 if (inp == 0) { 662 if (control) { 663 sctp_m_freem(control); 664 control = NULL; 665 } 666 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 667 sctp_m_freem(m); 668 return EINVAL; 669 } 670 /* Got to have an to address if we are NOT a connected socket */ 671 if ((addr == NULL) && 672 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) || 673 (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE)) 674 ) { 675 goto connected_type; 676 } else if (addr == NULL) { 677 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 678 error = EDESTADDRREQ; 679 sctp_m_freem(m); 680 if (control) { 681 sctp_m_freem(control); 682 control = NULL; 683 } 684 return (error); 685 } 686 #ifdef INET6 687 if (addr->sa_family != AF_INET) { 688 /* must be a v4 address! */ 689 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 690 sctp_m_freem(m); 691 if (control) { 692 sctp_m_freem(control); 693 control = NULL; 694 } 695 error = EDESTADDRREQ; 696 return EDESTADDRREQ; 697 } 698 #endif /* INET6 */ 699 connected_type: 700 /* now what about control */ 701 if (control) { 702 if (inp->control) { 703 SCTP_PRINTF("huh? control set?\n"); 704 sctp_m_freem(inp->control); 705 inp->control = NULL; 706 } 707 inp->control = control; 708 } 709 /* Place the data */ 710 if (inp->pkt) { 711 SCTP_BUF_NEXT(inp->pkt_last) = m; 712 inp->pkt_last = m; 713 } else { 714 inp->pkt_last = inp->pkt = m; 715 } 716 if ( 717 /* FreeBSD uses a flag passed */ 718 ((flags & PRUS_MORETOCOME) == 0) 719 ) { 720 /* 721 * note with the current version this code will only be used 722 * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for 723 * re-defining sosend to use the sctp_sosend. One can 724 * optionally switch back to this code (by changing back the 725 * definitions) but this is not advisable. This code is used 726 * by FreeBSD when sending a file with sendfile() though. 727 */ 728 int ret; 729 730 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags); 731 inp->pkt = NULL; 732 inp->control = NULL; 733 return (ret); 734 } else { 735 return (0); 736 } 737 } 738 739 int 740 sctp_disconnect(struct socket *so) 741 { 742 struct sctp_inpcb *inp; 743 744 inp = (struct sctp_inpcb *)so->so_pcb; 745 if (inp == NULL) { 746 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 747 return (ENOTCONN); 748 } 749 SCTP_INP_RLOCK(inp); 750 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 751 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 752 if (SCTP_LIST_EMPTY(&inp->sctp_asoc_list)) { 753 /* No connection */ 754 SCTP_INP_RUNLOCK(inp); 755 return (0); 756 } else { 757 struct sctp_association *asoc; 758 struct sctp_tcb *stcb; 759 760 stcb = LIST_FIRST(&inp->sctp_asoc_list); 761 if (stcb == NULL) { 762 SCTP_INP_RUNLOCK(inp); 763 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 764 return (EINVAL); 765 } 766 SCTP_TCB_LOCK(stcb); 767 asoc = &stcb->asoc; 768 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 769 /* We are about to be freed, out of here */ 770 SCTP_TCB_UNLOCK(stcb); 771 SCTP_INP_RUNLOCK(inp); 772 return (0); 773 } 774 if (((so->so_options & SO_LINGER) && 775 (so->so_linger == 0)) || 776 (so->so_rcv.sb_cc > 0)) { 777 if (SCTP_GET_STATE(asoc) != 778 SCTP_STATE_COOKIE_WAIT) { 779 /* Left with Data unread */ 780 struct mbuf *err; 781 782 err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA); 783 if (err) { 784 /* 785 * Fill in the user 786 * initiated abort 787 */ 788 struct sctp_paramhdr *ph; 789 790 ph = mtod(err, struct sctp_paramhdr *); 791 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr); 792 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT); 793 ph->param_length = htons(SCTP_BUF_LEN(err)); 794 } 795 #if defined(SCTP_PANIC_ON_ABORT) 796 panic("disconnect does an abort"); 797 #endif 798 sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED); 799 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 800 } 801 SCTP_INP_RUNLOCK(inp); 802 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 803 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 804 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 805 } 806 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3); 807 /* No unlock tcb assoc is gone */ 808 return (0); 809 } 810 if (TAILQ_EMPTY(&asoc->send_queue) && 811 TAILQ_EMPTY(&asoc->sent_queue) && 812 (asoc->stream_queue_cnt == 0)) { 813 /* there is nothing queued to send, so done */ 814 if (asoc->locked_on_sending) { 815 goto abort_anyway; 816 } 817 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) && 818 (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) { 819 /* only send SHUTDOWN 1st time thru */ 820 sctp_stop_timers_for_shutdown(stcb); 821 sctp_send_shutdown(stcb, 822 stcb->asoc.primary_destination); 823 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 824 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 825 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 826 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 827 } 828 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 829 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 830 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 831 stcb->sctp_ep, stcb, 832 asoc->primary_destination); 833 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 834 stcb->sctp_ep, stcb, 835 asoc->primary_destination); 836 } 837 } else { 838 /* 839 * we still got (or just got) data to send, 840 * so set SHUTDOWN_PENDING 841 */ 842 /* 843 * XXX sockets draft says that SCTP_EOF 844 * should be sent with no data. currently, 845 * we will allow user data to be sent first 846 * and move to SHUTDOWN-PENDING 847 */ 848 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 849 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 850 asoc->primary_destination); 851 if (asoc->locked_on_sending) { 852 /* Locked to send out the data */ 853 struct sctp_stream_queue_pending *sp; 854 855 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 856 if (sp == NULL) { 857 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 858 asoc->locked_on_sending->stream_no); 859 } else { 860 if ((sp->length == 0) && (sp->msg_is_complete == 0)) 861 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 862 } 863 } 864 if (TAILQ_EMPTY(&asoc->send_queue) && 865 TAILQ_EMPTY(&asoc->sent_queue) && 866 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 867 struct mbuf *op_err; 868 869 abort_anyway: 870 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 871 0, M_DONTWAIT, 1, MT_DATA); 872 if (op_err) { 873 /* 874 * Fill in the user 875 * initiated abort 876 */ 877 struct sctp_paramhdr *ph; 878 uint32_t *ippp; 879 880 SCTP_BUF_LEN(op_err) = 881 (sizeof(struct sctp_paramhdr) + sizeof(uint32_t)); 882 ph = mtod(op_err, 883 struct sctp_paramhdr *); 884 ph->param_type = htons( 885 SCTP_CAUSE_USER_INITIATED_ABT); 886 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 887 ippp = (uint32_t *) (ph + 1); 888 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4); 889 } 890 #if defined(SCTP_PANIC_ON_ABORT) 891 panic("disconnect does an abort"); 892 #endif 893 894 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4; 895 sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED); 896 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 897 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 898 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 899 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 900 } 901 SCTP_INP_RUNLOCK(inp); 902 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5); 903 return (0); 904 } else { 905 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 906 } 907 } 908 SCTP_TCB_UNLOCK(stcb); 909 SCTP_INP_RUNLOCK(inp); 910 return (0); 911 } 912 /* not reached */ 913 } else { 914 /* UDP model does not support this */ 915 SCTP_INP_RUNLOCK(inp); 916 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 917 return EOPNOTSUPP; 918 } 919 } 920 921 int 922 sctp_shutdown(struct socket *so) 923 { 924 struct sctp_inpcb *inp; 925 926 inp = (struct sctp_inpcb *)so->so_pcb; 927 if (inp == 0) { 928 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 929 return EINVAL; 930 } 931 SCTP_INP_RLOCK(inp); 932 /* For UDP model this is a invalid call */ 933 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 934 /* Restore the flags that the soshutdown took away. */ 935 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; 936 /* This proc will wakeup for read and do nothing (I hope) */ 937 SCTP_INP_RUNLOCK(inp); 938 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 939 return (EOPNOTSUPP); 940 } 941 /* 942 * Ok if we reach here its the TCP model and it is either a SHUT_WR 943 * or SHUT_RDWR. This means we put the shutdown flag against it. 944 */ 945 { 946 struct sctp_tcb *stcb; 947 struct sctp_association *asoc; 948 949 socantsendmore(so); 950 951 stcb = LIST_FIRST(&inp->sctp_asoc_list); 952 if (stcb == NULL) { 953 /* 954 * Ok we hit the case that the shutdown call was 955 * made after an abort or something. Nothing to do 956 * now. 957 */ 958 SCTP_INP_RUNLOCK(inp); 959 return (0); 960 } 961 SCTP_TCB_LOCK(stcb); 962 asoc = &stcb->asoc; 963 if (TAILQ_EMPTY(&asoc->send_queue) && 964 TAILQ_EMPTY(&asoc->sent_queue) && 965 (asoc->stream_queue_cnt == 0)) { 966 if (asoc->locked_on_sending) { 967 goto abort_anyway; 968 } 969 /* there is nothing queued to send, so I'm done... */ 970 if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) { 971 /* only send SHUTDOWN the first time through */ 972 sctp_stop_timers_for_shutdown(stcb); 973 sctp_send_shutdown(stcb, 974 stcb->asoc.primary_destination); 975 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 976 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 977 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 978 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 979 } 980 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 981 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 982 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 983 stcb->sctp_ep, stcb, 984 asoc->primary_destination); 985 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 986 stcb->sctp_ep, stcb, 987 asoc->primary_destination); 988 } 989 } else { 990 /* 991 * we still got (or just got) data to send, so set 992 * SHUTDOWN_PENDING 993 */ 994 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 995 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 996 asoc->primary_destination); 997 998 if (asoc->locked_on_sending) { 999 /* Locked to send out the data */ 1000 struct sctp_stream_queue_pending *sp; 1001 1002 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 1003 if (sp == NULL) { 1004 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 1005 asoc->locked_on_sending->stream_no); 1006 } else { 1007 if ((sp->length == 0) && (sp->msg_is_complete == 0)) { 1008 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 1009 } 1010 } 1011 } 1012 if (TAILQ_EMPTY(&asoc->send_queue) && 1013 TAILQ_EMPTY(&asoc->sent_queue) && 1014 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 1015 struct mbuf *op_err; 1016 1017 abort_anyway: 1018 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 1019 0, M_DONTWAIT, 1, MT_DATA); 1020 if (op_err) { 1021 /* Fill in the user initiated abort */ 1022 struct sctp_paramhdr *ph; 1023 uint32_t *ippp; 1024 1025 SCTP_BUF_LEN(op_err) = 1026 sizeof(struct sctp_paramhdr) + sizeof(uint32_t); 1027 ph = mtod(op_err, 1028 struct sctp_paramhdr *); 1029 ph->param_type = htons( 1030 SCTP_CAUSE_USER_INITIATED_ABT); 1031 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 1032 ippp = (uint32_t *) (ph + 1); 1033 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1034 } 1035 #if defined(SCTP_PANIC_ON_ABORT) 1036 panic("shutdown does an abort"); 1037 #endif 1038 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6; 1039 sctp_abort_an_association(stcb->sctp_ep, stcb, 1040 SCTP_RESPONSE_TO_USER_REQ, 1041 op_err, SCTP_SO_LOCKED); 1042 goto skip_unlock; 1043 } else { 1044 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 1045 } 1046 } 1047 SCTP_TCB_UNLOCK(stcb); 1048 } 1049 skip_unlock: 1050 SCTP_INP_RUNLOCK(inp); 1051 return 0; 1052 } 1053 1054 /* 1055 * copies a "user" presentable address and removes embedded scope, etc. 1056 * returns 0 on success, 1 on error 1057 */ 1058 static uint32_t 1059 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa) 1060 { 1061 struct sockaddr_in6 lsa6; 1062 1063 sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa, 1064 &lsa6); 1065 memcpy(ss, sa, sa->sa_len); 1066 return (0); 1067 } 1068 1069 1070 1071 /* 1072 * NOTE: assumes addr lock is held 1073 */ 1074 static size_t 1075 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp, 1076 struct sctp_tcb *stcb, 1077 size_t limit, 1078 struct sockaddr_storage *sas, 1079 uint32_t vrf_id) 1080 { 1081 struct sctp_ifn *sctp_ifn; 1082 struct sctp_ifa *sctp_ifa; 1083 int loopback_scope, ipv4_local_scope, local_scope, site_scope; 1084 size_t actual; 1085 int ipv4_addr_legal, ipv6_addr_legal; 1086 struct sctp_vrf *vrf; 1087 1088 actual = 0; 1089 if (limit <= 0) 1090 return (actual); 1091 1092 if (stcb) { 1093 /* Turn on all the appropriate scope */ 1094 loopback_scope = stcb->asoc.loopback_scope; 1095 ipv4_local_scope = stcb->asoc.ipv4_local_scope; 1096 local_scope = stcb->asoc.local_scope; 1097 site_scope = stcb->asoc.site_scope; 1098 } else { 1099 /* Turn on ALL scope, since we look at the EP */ 1100 loopback_scope = ipv4_local_scope = local_scope = 1101 site_scope = 1; 1102 } 1103 ipv4_addr_legal = ipv6_addr_legal = 0; 1104 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1105 ipv6_addr_legal = 1; 1106 if (SCTP_IPV6_V6ONLY(inp) == 0) { 1107 ipv4_addr_legal = 1; 1108 } 1109 } else { 1110 ipv4_addr_legal = 1; 1111 } 1112 vrf = sctp_find_vrf(vrf_id); 1113 if (vrf == NULL) { 1114 return (0); 1115 } 1116 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1117 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1118 if ((loopback_scope == 0) && 1119 SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) { 1120 /* Skip loopback if loopback_scope not set */ 1121 continue; 1122 } 1123 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1124 if (stcb) { 1125 /* 1126 * For the BOUND-ALL case, the list 1127 * associated with a TCB is Always 1128 * considered a reverse list.. i.e. 1129 * it lists addresses that are NOT 1130 * part of the association. If this 1131 * is one of those we must skip it. 1132 */ 1133 if (sctp_is_addr_restricted(stcb, 1134 sctp_ifa)) { 1135 continue; 1136 } 1137 } 1138 if ((sctp_ifa->address.sa.sa_family == AF_INET) && 1139 (ipv4_addr_legal)) { 1140 struct sockaddr_in *sin; 1141 1142 sin = (struct sockaddr_in *)&sctp_ifa->address.sa; 1143 if (sin->sin_addr.s_addr == 0) { 1144 /* 1145 * we skip unspecifed 1146 * addresses 1147 */ 1148 continue; 1149 } 1150 if ((ipv4_local_scope == 0) && 1151 (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) { 1152 continue; 1153 } 1154 if (inp->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) { 1155 in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas); 1156 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1157 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6)); 1158 actual += sizeof(struct sockaddr_in6); 1159 } else { 1160 memcpy(sas, sin, sizeof(*sin)); 1161 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport; 1162 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin)); 1163 actual += sizeof(*sin); 1164 } 1165 if (actual >= limit) { 1166 return (actual); 1167 } 1168 } else if ((sctp_ifa->address.sa.sa_family == AF_INET6) && 1169 (ipv6_addr_legal)) { 1170 struct sockaddr_in6 *sin6; 1171 1172 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa; 1173 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 1174 /* 1175 * we skip unspecifed 1176 * addresses 1177 */ 1178 continue; 1179 } 1180 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 1181 if (local_scope == 0) 1182 continue; 1183 if (sin6->sin6_scope_id == 0) { 1184 if (sa6_recoverscope(sin6) != 0) 1185 /* 1186 * bad link 1187 * local 1188 * address 1189 */ 1190 continue; 1191 } 1192 } 1193 if ((site_scope == 0) && 1194 (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) { 1195 continue; 1196 } 1197 memcpy(sas, sin6, sizeof(*sin6)); 1198 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1199 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6)); 1200 actual += sizeof(*sin6); 1201 if (actual >= limit) { 1202 return (actual); 1203 } 1204 } 1205 } 1206 } 1207 } else { 1208 struct sctp_laddr *laddr; 1209 1210 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1211 if (stcb) { 1212 if (sctp_is_addr_restricted(stcb, laddr->ifa)) { 1213 continue; 1214 } 1215 } 1216 if (sctp_fill_user_address(sas, &laddr->ifa->address.sa)) 1217 continue; 1218 1219 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1220 sas = (struct sockaddr_storage *)((caddr_t)sas + 1221 laddr->ifa->address.sa.sa_len); 1222 actual += laddr->ifa->address.sa.sa_len; 1223 if (actual >= limit) { 1224 return (actual); 1225 } 1226 } 1227 } 1228 return (actual); 1229 } 1230 1231 static size_t 1232 sctp_fill_up_addresses(struct sctp_inpcb *inp, 1233 struct sctp_tcb *stcb, 1234 size_t limit, 1235 struct sockaddr_storage *sas) 1236 { 1237 size_t size = 0; 1238 1239 SCTP_IPI_ADDR_RLOCK(); 1240 /* fill up addresses for the endpoint's default vrf */ 1241 size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas, 1242 inp->def_vrf_id); 1243 SCTP_IPI_ADDR_RUNLOCK(); 1244 return (size); 1245 } 1246 1247 /* 1248 * NOTE: assumes addr lock is held 1249 */ 1250 static int 1251 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id) 1252 { 1253 int cnt = 0; 1254 struct sctp_vrf *vrf = NULL; 1255 1256 /* 1257 * In both sub-set bound an bound_all cases we return the MAXIMUM 1258 * number of addresses that you COULD get. In reality the sub-set 1259 * bound may have an exclusion list for a given TCB OR in the 1260 * bound-all case a TCB may NOT include the loopback or other 1261 * addresses as well. 1262 */ 1263 vrf = sctp_find_vrf(vrf_id); 1264 if (vrf == NULL) { 1265 return (0); 1266 } 1267 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1268 struct sctp_ifn *sctp_ifn; 1269 struct sctp_ifa *sctp_ifa; 1270 1271 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1272 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1273 /* Count them if they are the right type */ 1274 if (sctp_ifa->address.sa.sa_family == AF_INET) { 1275 if (inp->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) 1276 cnt += sizeof(struct sockaddr_in6); 1277 else 1278 cnt += sizeof(struct sockaddr_in); 1279 1280 } else if (sctp_ifa->address.sa.sa_family == AF_INET6) 1281 cnt += sizeof(struct sockaddr_in6); 1282 } 1283 } 1284 } else { 1285 struct sctp_laddr *laddr; 1286 1287 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1288 if (laddr->ifa->address.sa.sa_family == AF_INET) { 1289 if (inp->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) 1290 cnt += sizeof(struct sockaddr_in6); 1291 else 1292 cnt += sizeof(struct sockaddr_in); 1293 1294 } else if (laddr->ifa->address.sa.sa_family == AF_INET6) 1295 cnt += sizeof(struct sockaddr_in6); 1296 } 1297 } 1298 return (cnt); 1299 } 1300 1301 static int 1302 sctp_count_max_addresses(struct sctp_inpcb *inp) 1303 { 1304 int cnt = 0; 1305 1306 SCTP_IPI_ADDR_RLOCK(); 1307 /* count addresses for the endpoint's default VRF */ 1308 cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id); 1309 SCTP_IPI_ADDR_RUNLOCK(); 1310 return (cnt); 1311 } 1312 1313 static int 1314 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval, 1315 size_t optsize, void *p, int delay) 1316 { 1317 int error = 0; 1318 int creat_lock_on = 0; 1319 struct sctp_tcb *stcb = NULL; 1320 struct sockaddr *sa; 1321 int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr; 1322 int added = 0; 1323 uint32_t vrf_id; 1324 int bad_addresses = 0; 1325 sctp_assoc_t *a_id; 1326 1327 SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n"); 1328 1329 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 1330 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 1331 /* We are already connected AND the TCP model */ 1332 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 1333 return (EADDRINUSE); 1334 } 1335 if (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) { 1336 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1337 return (EINVAL); 1338 } 1339 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 1340 SCTP_INP_RLOCK(inp); 1341 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1342 SCTP_INP_RUNLOCK(inp); 1343 } 1344 if (stcb) { 1345 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1346 return (EALREADY); 1347 } 1348 SCTP_INP_INCR_REF(inp); 1349 SCTP_ASOC_CREATE_LOCK(inp); 1350 creat_lock_on = 1; 1351 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 1352 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 1353 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 1354 error = EFAULT; 1355 goto out_now; 1356 } 1357 totaddrp = (int *)optval; 1358 totaddr = *totaddrp; 1359 sa = (struct sockaddr *)(totaddrp + 1); 1360 stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses); 1361 if ((stcb != NULL) || bad_addresses) { 1362 /* Already have or am bring up an association */ 1363 SCTP_ASOC_CREATE_UNLOCK(inp); 1364 creat_lock_on = 0; 1365 if (stcb) 1366 SCTP_TCB_UNLOCK(stcb); 1367 if (bad_addresses == 0) { 1368 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1369 error = EALREADY; 1370 } 1371 goto out_now; 1372 } 1373 #ifdef INET6 1374 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 1375 (num_v6 > 0)) { 1376 error = EINVAL; 1377 goto out_now; 1378 } 1379 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && 1380 (num_v4 > 0)) { 1381 struct in6pcb *inp6; 1382 1383 inp6 = (struct in6pcb *)inp; 1384 if (SCTP_IPV6_V6ONLY(inp6)) { 1385 /* 1386 * if IPV6_V6ONLY flag, ignore connections destined 1387 * to a v4 addr or v4-mapped addr 1388 */ 1389 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1390 error = EINVAL; 1391 goto out_now; 1392 } 1393 } 1394 #endif /* INET6 */ 1395 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 1396 SCTP_PCB_FLAGS_UNBOUND) { 1397 /* Bind a ephemeral port */ 1398 error = sctp_inpcb_bind(so, NULL, NULL, p); 1399 if (error) { 1400 goto out_now; 1401 } 1402 } 1403 /* FIX ME: do we want to pass in a vrf on the connect call? */ 1404 vrf_id = inp->def_vrf_id; 1405 1406 /* We are GOOD to go */ 1407 stcb = sctp_aloc_assoc(inp, sa, 1, &error, 0, vrf_id, 1408 (struct thread *)p 1409 ); 1410 if (stcb == NULL) { 1411 /* Gak! no memory */ 1412 goto out_now; 1413 } 1414 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 1415 /* move to second address */ 1416 if (sa->sa_family == AF_INET) 1417 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in)); 1418 else 1419 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6)); 1420 1421 error = 0; 1422 added = sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error); 1423 /* Fill in the return id */ 1424 if (error) { 1425 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12); 1426 goto out_now; 1427 } 1428 a_id = (sctp_assoc_t *) optval; 1429 *a_id = sctp_get_associd(stcb); 1430 1431 /* initialize authentication parameters for the assoc */ 1432 sctp_initialize_auth_params(inp, stcb); 1433 1434 if (delay) { 1435 /* doing delayed connection */ 1436 stcb->asoc.delayed_connection = 1; 1437 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination); 1438 } else { 1439 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 1440 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 1441 } 1442 SCTP_TCB_UNLOCK(stcb); 1443 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 1444 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 1445 /* Set the connected flag so we can queue data */ 1446 soisconnecting(so); 1447 } 1448 out_now: 1449 if (creat_lock_on) { 1450 SCTP_ASOC_CREATE_UNLOCK(inp); 1451 } 1452 SCTP_INP_DECR_REF(inp); 1453 return error; 1454 } 1455 1456 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \ 1457 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\ 1458 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \ 1459 SCTP_INP_RLOCK(inp); \ 1460 stcb = LIST_FIRST(&inp->sctp_asoc_list); \ 1461 if (stcb) { \ 1462 SCTP_TCB_LOCK(stcb); \ 1463 } \ 1464 SCTP_INP_RUNLOCK(inp); \ 1465 } else if (assoc_id != 0) { \ 1466 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \ 1467 if (stcb == NULL) { \ 1468 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \ 1469 error = ENOENT; \ 1470 break; \ 1471 } \ 1472 } else { \ 1473 stcb = NULL; \ 1474 } \ 1475 } 1476 1477 1478 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\ 1479 if (size < sizeof(type)) { \ 1480 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \ 1481 error = EINVAL; \ 1482 break; \ 1483 } else { \ 1484 destp = (type *)srcp; \ 1485 } \ 1486 } 1487 1488 static int 1489 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize, 1490 void *p) 1491 { 1492 struct sctp_inpcb *inp = NULL; 1493 int error, val = 0; 1494 struct sctp_tcb *stcb = NULL; 1495 1496 if (optval == NULL) { 1497 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1498 return (EINVAL); 1499 } 1500 inp = (struct sctp_inpcb *)so->so_pcb; 1501 if (inp == 0) { 1502 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1503 return EINVAL; 1504 } 1505 error = 0; 1506 1507 switch (optname) { 1508 case SCTP_NODELAY: 1509 case SCTP_AUTOCLOSE: 1510 case SCTP_EXPLICIT_EOR: 1511 case SCTP_AUTO_ASCONF: 1512 case SCTP_DISABLE_FRAGMENTS: 1513 case SCTP_I_WANT_MAPPED_V4_ADDR: 1514 case SCTP_USE_EXT_RCVINFO: 1515 SCTP_INP_RLOCK(inp); 1516 switch (optname) { 1517 case SCTP_DISABLE_FRAGMENTS: 1518 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT); 1519 break; 1520 case SCTP_I_WANT_MAPPED_V4_ADDR: 1521 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4); 1522 break; 1523 case SCTP_AUTO_ASCONF: 1524 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1525 /* only valid for bound all sockets */ 1526 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF); 1527 } else { 1528 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1529 error = EINVAL; 1530 goto flags_out; 1531 } 1532 break; 1533 case SCTP_EXPLICIT_EOR: 1534 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR); 1535 break; 1536 case SCTP_NODELAY: 1537 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY); 1538 break; 1539 case SCTP_USE_EXT_RCVINFO: 1540 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO); 1541 break; 1542 case SCTP_AUTOCLOSE: 1543 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE)) 1544 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time); 1545 else 1546 val = 0; 1547 break; 1548 1549 default: 1550 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 1551 error = ENOPROTOOPT; 1552 } /* end switch (sopt->sopt_name) */ 1553 if (optname != SCTP_AUTOCLOSE) { 1554 /* make it an "on/off" value */ 1555 val = (val != 0); 1556 } 1557 if (*optsize < sizeof(val)) { 1558 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1559 error = EINVAL; 1560 } 1561 flags_out: 1562 SCTP_INP_RUNLOCK(inp); 1563 if (error == 0) { 1564 /* return the option value */ 1565 *(int *)optval = val; 1566 *optsize = sizeof(val); 1567 } 1568 break; 1569 case SCTP_GET_PACKET_LOG: 1570 { 1571 #ifdef SCTP_PACKET_LOGGING 1572 uint8_t *target; 1573 int ret; 1574 1575 SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize); 1576 ret = sctp_copy_out_packet_log(target, (int)*optsize); 1577 *optsize = ret; 1578 #else 1579 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1580 error = EOPNOTSUPP; 1581 #endif 1582 break; 1583 } 1584 case SCTP_PARTIAL_DELIVERY_POINT: 1585 { 1586 uint32_t *value; 1587 1588 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1589 *value = inp->partial_delivery_point; 1590 *optsize = sizeof(uint32_t); 1591 } 1592 break; 1593 case SCTP_FRAGMENT_INTERLEAVE: 1594 { 1595 uint32_t *value; 1596 1597 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1598 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) { 1599 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) { 1600 *value = SCTP_FRAG_LEVEL_2; 1601 } else { 1602 *value = SCTP_FRAG_LEVEL_1; 1603 } 1604 } else { 1605 *value = SCTP_FRAG_LEVEL_0; 1606 } 1607 *optsize = sizeof(uint32_t); 1608 } 1609 break; 1610 case SCTP_CMT_ON_OFF: 1611 { 1612 struct sctp_assoc_value *av; 1613 1614 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1615 if (sctp_cmt_on_off) { 1616 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1617 if (stcb) { 1618 av->assoc_value = stcb->asoc.sctp_cmt_on_off; 1619 SCTP_TCB_UNLOCK(stcb); 1620 1621 } else { 1622 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1623 error = ENOTCONN; 1624 } 1625 } else { 1626 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 1627 error = ENOPROTOOPT; 1628 } 1629 *optsize = sizeof(*av); 1630 } 1631 break; 1632 /* JRS - Get socket option for pluggable congestion control */ 1633 case SCTP_PLUGGABLE_CC: 1634 { 1635 struct sctp_assoc_value *av; 1636 1637 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1638 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1639 if (stcb) { 1640 av->assoc_value = stcb->asoc.congestion_control_module; 1641 SCTP_TCB_UNLOCK(stcb); 1642 } else { 1643 av->assoc_value = inp->sctp_ep.sctp_default_cc_module; 1644 } 1645 *optsize = sizeof(*av); 1646 } 1647 break; 1648 case SCTP_GET_ADDR_LEN: 1649 { 1650 struct sctp_assoc_value *av; 1651 1652 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1653 error = EINVAL; 1654 #ifdef INET 1655 if (av->assoc_value == AF_INET) { 1656 av->assoc_value = sizeof(struct sockaddr_in); 1657 error = 0; 1658 } 1659 #endif 1660 #ifdef INET6 1661 if (av->assoc_value == AF_INET6) { 1662 av->assoc_value = sizeof(struct sockaddr_in6); 1663 error = 0; 1664 } 1665 #endif 1666 if (error) { 1667 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1668 } 1669 *optsize = sizeof(*av); 1670 } 1671 break; 1672 case SCTP_GET_ASSOC_NUMBER: 1673 { 1674 uint32_t *value, cnt; 1675 1676 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1677 cnt = 0; 1678 SCTP_INP_RLOCK(inp); 1679 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1680 cnt++; 1681 } 1682 SCTP_INP_RUNLOCK(inp); 1683 *value = cnt; 1684 *optsize = sizeof(uint32_t); 1685 } 1686 break; 1687 1688 case SCTP_GET_ASSOC_ID_LIST: 1689 { 1690 struct sctp_assoc_ids *ids; 1691 unsigned int at, limit; 1692 1693 SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize); 1694 at = 0; 1695 limit = *optsize / sizeof(sctp_assoc_t); 1696 SCTP_INP_RLOCK(inp); 1697 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1698 if (at < limit) { 1699 ids->gaids_assoc_id[at++] = sctp_get_associd(stcb); 1700 } else { 1701 error = EINVAL; 1702 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1703 break; 1704 } 1705 } 1706 SCTP_INP_RUNLOCK(inp); 1707 *optsize = at * sizeof(sctp_assoc_t); 1708 } 1709 break; 1710 case SCTP_CONTEXT: 1711 { 1712 struct sctp_assoc_value *av; 1713 1714 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1715 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1716 1717 if (stcb) { 1718 av->assoc_value = stcb->asoc.context; 1719 SCTP_TCB_UNLOCK(stcb); 1720 } else { 1721 SCTP_INP_RLOCK(inp); 1722 av->assoc_value = inp->sctp_context; 1723 SCTP_INP_RUNLOCK(inp); 1724 } 1725 *optsize = sizeof(*av); 1726 } 1727 break; 1728 case SCTP_VRF_ID: 1729 { 1730 uint32_t *default_vrfid; 1731 1732 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize); 1733 *default_vrfid = inp->def_vrf_id; 1734 break; 1735 } 1736 case SCTP_GET_ASOC_VRF: 1737 { 1738 struct sctp_assoc_value *id; 1739 1740 SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize); 1741 SCTP_FIND_STCB(inp, stcb, id->assoc_id); 1742 if (stcb == NULL) { 1743 error = EINVAL; 1744 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1745 break; 1746 } 1747 id->assoc_value = stcb->asoc.vrf_id; 1748 break; 1749 } 1750 case SCTP_GET_VRF_IDS: 1751 { 1752 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1753 error = EOPNOTSUPP; 1754 break; 1755 } 1756 case SCTP_GET_NONCE_VALUES: 1757 { 1758 struct sctp_get_nonce_values *gnv; 1759 1760 SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize); 1761 SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id); 1762 1763 if (stcb) { 1764 gnv->gn_peers_tag = stcb->asoc.peer_vtag; 1765 gnv->gn_local_tag = stcb->asoc.my_vtag; 1766 SCTP_TCB_UNLOCK(stcb); 1767 } else { 1768 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1769 error = ENOTCONN; 1770 } 1771 *optsize = sizeof(*gnv); 1772 } 1773 break; 1774 case SCTP_DELAYED_SACK: 1775 { 1776 struct sctp_sack_info *sack; 1777 1778 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize); 1779 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 1780 if (stcb) { 1781 sack->sack_delay = stcb->asoc.delayed_ack; 1782 sack->sack_freq = stcb->asoc.sack_freq; 1783 SCTP_TCB_UNLOCK(stcb); 1784 } else { 1785 SCTP_INP_RLOCK(inp); 1786 sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]); 1787 sack->sack_freq = inp->sctp_ep.sctp_sack_freq; 1788 SCTP_INP_RUNLOCK(inp); 1789 } 1790 *optsize = sizeof(*sack); 1791 } 1792 break; 1793 1794 case SCTP_GET_SNDBUF_USE: 1795 { 1796 struct sctp_sockstat *ss; 1797 1798 SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize); 1799 SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id); 1800 1801 if (stcb) { 1802 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size; 1803 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue + 1804 stcb->asoc.size_on_all_streams); 1805 SCTP_TCB_UNLOCK(stcb); 1806 } else { 1807 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1808 error = ENOTCONN; 1809 } 1810 *optsize = sizeof(struct sctp_sockstat); 1811 } 1812 break; 1813 case SCTP_MAX_BURST: 1814 { 1815 uint8_t *value; 1816 1817 SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize); 1818 1819 SCTP_INP_RLOCK(inp); 1820 *value = inp->sctp_ep.max_burst; 1821 SCTP_INP_RUNLOCK(inp); 1822 *optsize = sizeof(uint8_t); 1823 } 1824 break; 1825 case SCTP_MAXSEG: 1826 { 1827 struct sctp_assoc_value *av; 1828 int ovh; 1829 1830 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1831 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1832 1833 if (stcb) { 1834 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc); 1835 SCTP_TCB_UNLOCK(stcb); 1836 } else { 1837 SCTP_INP_RLOCK(inp); 1838 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1839 ovh = SCTP_MED_OVERHEAD; 1840 } else { 1841 ovh = SCTP_MED_V4_OVERHEAD; 1842 } 1843 if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT) 1844 av->assoc_value = 0; 1845 else 1846 av->assoc_value = inp->sctp_frag_point - ovh; 1847 SCTP_INP_RUNLOCK(inp); 1848 } 1849 *optsize = sizeof(struct sctp_assoc_value); 1850 } 1851 break; 1852 case SCTP_GET_STAT_LOG: 1853 error = sctp_fill_stat_log(optval, optsize); 1854 break; 1855 case SCTP_EVENTS: 1856 { 1857 struct sctp_event_subscribe *events; 1858 1859 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize); 1860 memset(events, 0, sizeof(*events)); 1861 SCTP_INP_RLOCK(inp); 1862 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT)) 1863 events->sctp_data_io_event = 1; 1864 1865 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT)) 1866 events->sctp_association_event = 1; 1867 1868 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT)) 1869 events->sctp_address_event = 1; 1870 1871 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT)) 1872 events->sctp_send_failure_event = 1; 1873 1874 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR)) 1875 events->sctp_peer_error_event = 1; 1876 1877 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT)) 1878 events->sctp_shutdown_event = 1; 1879 1880 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT)) 1881 events->sctp_partial_delivery_event = 1; 1882 1883 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT)) 1884 events->sctp_adaptation_layer_event = 1; 1885 1886 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT)) 1887 events->sctp_authentication_event = 1; 1888 1889 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT)) 1890 events->sctp_stream_reset_events = 1; 1891 SCTP_INP_RUNLOCK(inp); 1892 *optsize = sizeof(struct sctp_event_subscribe); 1893 } 1894 break; 1895 1896 case SCTP_ADAPTATION_LAYER: 1897 { 1898 uint32_t *value; 1899 1900 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1901 1902 SCTP_INP_RLOCK(inp); 1903 *value = inp->sctp_ep.adaptation_layer_indicator; 1904 SCTP_INP_RUNLOCK(inp); 1905 *optsize = sizeof(uint32_t); 1906 } 1907 break; 1908 case SCTP_SET_INITIAL_DBG_SEQ: 1909 { 1910 uint32_t *value; 1911 1912 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1913 SCTP_INP_RLOCK(inp); 1914 *value = inp->sctp_ep.initial_sequence_debug; 1915 SCTP_INP_RUNLOCK(inp); 1916 *optsize = sizeof(uint32_t); 1917 } 1918 break; 1919 case SCTP_GET_LOCAL_ADDR_SIZE: 1920 { 1921 uint32_t *value; 1922 1923 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1924 SCTP_INP_RLOCK(inp); 1925 *value = sctp_count_max_addresses(inp); 1926 SCTP_INP_RUNLOCK(inp); 1927 *optsize = sizeof(uint32_t); 1928 } 1929 break; 1930 case SCTP_GET_REMOTE_ADDR_SIZE: 1931 { 1932 uint32_t *value; 1933 size_t size; 1934 struct sctp_nets *net; 1935 1936 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1937 /* FIXME MT: change to sctp_assoc_value? */ 1938 SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value); 1939 1940 if (stcb) { 1941 size = 0; 1942 /* Count the sizes */ 1943 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 1944 if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) || 1945 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 1946 size += sizeof(struct sockaddr_in6); 1947 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 1948 size += sizeof(struct sockaddr_in); 1949 } else { 1950 /* huh */ 1951 break; 1952 } 1953 } 1954 SCTP_TCB_UNLOCK(stcb); 1955 *value = (uint32_t) size; 1956 } else { 1957 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1958 error = ENOTCONN; 1959 } 1960 *optsize = sizeof(uint32_t); 1961 } 1962 break; 1963 case SCTP_GET_PEER_ADDRESSES: 1964 /* 1965 * Get the address information, an array is passed in to 1966 * fill up we pack it. 1967 */ 1968 { 1969 size_t cpsz, left; 1970 struct sockaddr_storage *sas; 1971 struct sctp_nets *net; 1972 struct sctp_getaddresses *saddr; 1973 1974 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 1975 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 1976 1977 if (stcb) { 1978 left = (*optsize) - sizeof(struct sctp_getaddresses); 1979 *optsize = sizeof(struct sctp_getaddresses); 1980 sas = (struct sockaddr_storage *)&saddr->addr[0]; 1981 1982 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 1983 if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) || 1984 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 1985 cpsz = sizeof(struct sockaddr_in6); 1986 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 1987 cpsz = sizeof(struct sockaddr_in); 1988 } else { 1989 /* huh */ 1990 break; 1991 } 1992 if (left < cpsz) { 1993 /* not enough room. */ 1994 break; 1995 } 1996 if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) && 1997 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) { 1998 /* Must map the address */ 1999 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr, 2000 (struct sockaddr_in6 *)sas); 2001 } else { 2002 memcpy(sas, &net->ro._l_addr, cpsz); 2003 } 2004 ((struct sockaddr_in *)sas)->sin_port = stcb->rport; 2005 2006 sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz); 2007 left -= cpsz; 2008 *optsize += cpsz; 2009 } 2010 SCTP_TCB_UNLOCK(stcb); 2011 } else { 2012 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2013 error = ENOENT; 2014 } 2015 } 2016 break; 2017 case SCTP_GET_LOCAL_ADDRESSES: 2018 { 2019 size_t limit, actual; 2020 struct sockaddr_storage *sas; 2021 struct sctp_getaddresses *saddr; 2022 2023 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2024 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2025 2026 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2027 limit = *optsize - sizeof(sctp_assoc_t); 2028 actual = sctp_fill_up_addresses(inp, stcb, limit, sas); 2029 if (stcb) { 2030 SCTP_TCB_UNLOCK(stcb); 2031 } 2032 *optsize = sizeof(struct sockaddr_storage) + actual; 2033 } 2034 break; 2035 case SCTP_PEER_ADDR_PARAMS: 2036 { 2037 struct sctp_paddrparams *paddrp; 2038 struct sctp_nets *net; 2039 2040 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize); 2041 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 2042 2043 net = NULL; 2044 if (stcb) { 2045 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 2046 } else { 2047 /* 2048 * We increment here since 2049 * sctp_findassociation_ep_addr() wil do a 2050 * decrement if it finds the stcb as long as 2051 * the locked tcb (last argument) is NOT a 2052 * TCB.. aka NULL. 2053 */ 2054 SCTP_INP_INCR_REF(inp); 2055 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL); 2056 if (stcb == NULL) { 2057 SCTP_INP_DECR_REF(inp); 2058 } 2059 } 2060 if (stcb && (net == NULL)) { 2061 struct sockaddr *sa; 2062 2063 sa = (struct sockaddr *)&paddrp->spp_address; 2064 if (sa->sa_family == AF_INET) { 2065 struct sockaddr_in *sin; 2066 2067 sin = (struct sockaddr_in *)sa; 2068 if (sin->sin_addr.s_addr) { 2069 error = EINVAL; 2070 SCTP_TCB_UNLOCK(stcb); 2071 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2072 break; 2073 } 2074 } else if (sa->sa_family == AF_INET6) { 2075 struct sockaddr_in6 *sin6; 2076 2077 sin6 = (struct sockaddr_in6 *)sa; 2078 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 2079 error = EINVAL; 2080 SCTP_TCB_UNLOCK(stcb); 2081 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2082 break; 2083 } 2084 } else { 2085 error = EAFNOSUPPORT; 2086 SCTP_TCB_UNLOCK(stcb); 2087 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2088 break; 2089 } 2090 } 2091 if (stcb) { 2092 /* Applys to the specific association */ 2093 paddrp->spp_flags = 0; 2094 if (net) { 2095 int ovh; 2096 2097 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2098 ovh = SCTP_MED_OVERHEAD; 2099 } else { 2100 ovh = SCTP_MED_V4_OVERHEAD; 2101 } 2102 2103 2104 paddrp->spp_pathmaxrxt = net->failure_threshold; 2105 paddrp->spp_pathmtu = net->mtu - ovh; 2106 /* get flags for HB */ 2107 if (net->dest_state & SCTP_ADDR_NOHB) 2108 paddrp->spp_flags |= SPP_HB_DISABLE; 2109 else 2110 paddrp->spp_flags |= SPP_HB_ENABLE; 2111 /* get flags for PMTU */ 2112 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2113 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2114 } else { 2115 paddrp->spp_flags |= SPP_PMTUD_DISABLE; 2116 } 2117 #ifdef INET 2118 if (net->ro._l_addr.sin.sin_family == AF_INET) { 2119 paddrp->spp_ipv4_tos = net->tos_flowlabel & 0x000000fc; 2120 paddrp->spp_flags |= SPP_IPV4_TOS; 2121 } 2122 #endif 2123 #ifdef INET6 2124 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 2125 paddrp->spp_ipv6_flowlabel = net->tos_flowlabel; 2126 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2127 } 2128 #endif 2129 } else { 2130 /* 2131 * No destination so return default 2132 * value 2133 */ 2134 int cnt = 0; 2135 2136 paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure; 2137 paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc); 2138 #ifdef INET 2139 paddrp->spp_ipv4_tos = stcb->asoc.default_tos & 0x000000fc; 2140 paddrp->spp_flags |= SPP_IPV4_TOS; 2141 #endif 2142 #ifdef INET6 2143 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel; 2144 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2145 #endif 2146 /* default settings should be these */ 2147 if (stcb->asoc.hb_is_disabled == 0) { 2148 paddrp->spp_flags |= SPP_HB_ENABLE; 2149 } else { 2150 paddrp->spp_flags |= SPP_HB_DISABLE; 2151 } 2152 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2153 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2154 cnt++; 2155 } 2156 } 2157 if (cnt) { 2158 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2159 } 2160 } 2161 paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay; 2162 paddrp->spp_assoc_id = sctp_get_associd(stcb); 2163 SCTP_TCB_UNLOCK(stcb); 2164 } else { 2165 /* Use endpoint defaults */ 2166 SCTP_INP_RLOCK(inp); 2167 paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure; 2168 paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]); 2169 paddrp->spp_assoc_id = (sctp_assoc_t) 0; 2170 /* get inp's default */ 2171 #ifdef INET 2172 paddrp->spp_ipv4_tos = inp->ip_inp.inp.inp_ip_tos; 2173 paddrp->spp_flags |= SPP_IPV4_TOS; 2174 #endif 2175 #ifdef INET6 2176 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2177 paddrp->spp_ipv6_flowlabel = ((struct in6pcb *)inp)->in6p_flowinfo; 2178 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2179 } 2180 #endif 2181 /* can't return this */ 2182 paddrp->spp_pathmtu = 0; 2183 2184 /* default behavior, no stcb */ 2185 paddrp->spp_flags = SPP_PMTUD_ENABLE; 2186 2187 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) { 2188 paddrp->spp_flags |= SPP_HB_ENABLE; 2189 } else { 2190 paddrp->spp_flags |= SPP_HB_DISABLE; 2191 } 2192 SCTP_INP_RUNLOCK(inp); 2193 } 2194 *optsize = sizeof(struct sctp_paddrparams); 2195 } 2196 break; 2197 case SCTP_GET_PEER_ADDR_INFO: 2198 { 2199 struct sctp_paddrinfo *paddri; 2200 struct sctp_nets *net; 2201 2202 SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize); 2203 SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id); 2204 2205 net = NULL; 2206 if (stcb) { 2207 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address); 2208 } else { 2209 /* 2210 * We increment here since 2211 * sctp_findassociation_ep_addr() wil do a 2212 * decrement if it finds the stcb as long as 2213 * the locked tcb (last argument) is NOT a 2214 * TCB.. aka NULL. 2215 */ 2216 SCTP_INP_INCR_REF(inp); 2217 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL); 2218 if (stcb == NULL) { 2219 SCTP_INP_DECR_REF(inp); 2220 } 2221 } 2222 2223 if ((stcb) && (net)) { 2224 paddri->spinfo_state = net->dest_state & (SCTP_REACHABLE_MASK | SCTP_ADDR_NOHB); 2225 paddri->spinfo_cwnd = net->cwnd; 2226 paddri->spinfo_srtt = ((net->lastsa >> 2) + net->lastsv) >> 1; 2227 paddri->spinfo_rto = net->RTO; 2228 paddri->spinfo_assoc_id = sctp_get_associd(stcb); 2229 SCTP_TCB_UNLOCK(stcb); 2230 } else { 2231 if (stcb) { 2232 SCTP_TCB_UNLOCK(stcb); 2233 } 2234 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2235 error = ENOENT; 2236 } 2237 *optsize = sizeof(struct sctp_paddrinfo); 2238 } 2239 break; 2240 case SCTP_PCB_STATUS: 2241 { 2242 struct sctp_pcbinfo *spcb; 2243 2244 SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize); 2245 sctp_fill_pcbinfo(spcb); 2246 *optsize = sizeof(struct sctp_pcbinfo); 2247 } 2248 break; 2249 2250 case SCTP_STATUS: 2251 { 2252 struct sctp_nets *net; 2253 struct sctp_status *sstat; 2254 2255 SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize); 2256 SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id); 2257 2258 if (stcb == NULL) { 2259 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2260 error = EINVAL; 2261 break; 2262 } 2263 /* 2264 * I think passing the state is fine since 2265 * sctp_constants.h will be available to the user 2266 * land. 2267 */ 2268 sstat->sstat_state = stcb->asoc.state; 2269 sstat->sstat_assoc_id = sctp_get_associd(stcb); 2270 sstat->sstat_rwnd = stcb->asoc.peers_rwnd; 2271 sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt; 2272 /* 2273 * We can't include chunks that have been passed to 2274 * the socket layer. Only things in queue. 2275 */ 2276 sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue + 2277 stcb->asoc.cnt_on_all_streams); 2278 2279 2280 sstat->sstat_instrms = stcb->asoc.streamincnt; 2281 sstat->sstat_outstrms = stcb->asoc.streamoutcnt; 2282 sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc); 2283 memcpy(&sstat->sstat_primary.spinfo_address, 2284 &stcb->asoc.primary_destination->ro._l_addr, 2285 ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len); 2286 net = stcb->asoc.primary_destination; 2287 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport; 2288 /* 2289 * Again the user can get info from sctp_constants.h 2290 * for what the state of the network is. 2291 */ 2292 sstat->sstat_primary.spinfo_state = net->dest_state & SCTP_REACHABLE_MASK; 2293 sstat->sstat_primary.spinfo_cwnd = net->cwnd; 2294 sstat->sstat_primary.spinfo_srtt = net->lastsa; 2295 sstat->sstat_primary.spinfo_rto = net->RTO; 2296 sstat->sstat_primary.spinfo_mtu = net->mtu; 2297 sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb); 2298 SCTP_TCB_UNLOCK(stcb); 2299 *optsize = sizeof(*sstat); 2300 } 2301 break; 2302 case SCTP_RTOINFO: 2303 { 2304 struct sctp_rtoinfo *srto; 2305 2306 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize); 2307 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 2308 2309 if (stcb) { 2310 srto->srto_initial = stcb->asoc.initial_rto; 2311 srto->srto_max = stcb->asoc.maxrto; 2312 srto->srto_min = stcb->asoc.minrto; 2313 SCTP_TCB_UNLOCK(stcb); 2314 } else { 2315 SCTP_INP_RLOCK(inp); 2316 srto->srto_initial = inp->sctp_ep.initial_rto; 2317 srto->srto_max = inp->sctp_ep.sctp_maxrto; 2318 srto->srto_min = inp->sctp_ep.sctp_minrto; 2319 SCTP_INP_RUNLOCK(inp); 2320 } 2321 *optsize = sizeof(*srto); 2322 } 2323 break; 2324 case SCTP_ASSOCINFO: 2325 { 2326 struct sctp_assocparams *sasoc; 2327 uint32_t oldval; 2328 2329 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize); 2330 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 2331 2332 if (stcb) { 2333 oldval = sasoc->sasoc_cookie_life; 2334 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life); 2335 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times; 2336 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 2337 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd; 2338 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd; 2339 SCTP_TCB_UNLOCK(stcb); 2340 } else { 2341 SCTP_INP_RLOCK(inp); 2342 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life); 2343 sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times; 2344 sasoc->sasoc_number_peer_destinations = 0; 2345 sasoc->sasoc_peer_rwnd = 0; 2346 sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv); 2347 SCTP_INP_RUNLOCK(inp); 2348 } 2349 *optsize = sizeof(*sasoc); 2350 } 2351 break; 2352 case SCTP_DEFAULT_SEND_PARAM: 2353 { 2354 struct sctp_sndrcvinfo *s_info; 2355 2356 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize); 2357 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 2358 2359 if (stcb) { 2360 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send)); 2361 SCTP_TCB_UNLOCK(stcb); 2362 } else { 2363 SCTP_INP_RLOCK(inp); 2364 memcpy(s_info, &inp->def_send, sizeof(inp->def_send)); 2365 SCTP_INP_RUNLOCK(inp); 2366 } 2367 *optsize = sizeof(*s_info); 2368 } 2369 break; 2370 case SCTP_INITMSG: 2371 { 2372 struct sctp_initmsg *sinit; 2373 2374 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize); 2375 SCTP_INP_RLOCK(inp); 2376 sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count; 2377 sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome; 2378 sinit->sinit_max_attempts = inp->sctp_ep.max_init_times; 2379 sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max; 2380 SCTP_INP_RUNLOCK(inp); 2381 *optsize = sizeof(*sinit); 2382 } 2383 break; 2384 case SCTP_PRIMARY_ADDR: 2385 /* we allow a "get" operation on this */ 2386 { 2387 struct sctp_setprim *ssp; 2388 2389 SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize); 2390 SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id); 2391 2392 if (stcb) { 2393 /* simply copy out the sockaddr_storage... */ 2394 int len; 2395 2396 len = *optsize; 2397 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len) 2398 len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len; 2399 2400 memcpy(&ssp->ssp_addr, 2401 &stcb->asoc.primary_destination->ro._l_addr, 2402 len); 2403 SCTP_TCB_UNLOCK(stcb); 2404 } else { 2405 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2406 error = EINVAL; 2407 } 2408 *optsize = sizeof(*ssp); 2409 } 2410 break; 2411 2412 case SCTP_HMAC_IDENT: 2413 { 2414 struct sctp_hmacalgo *shmac; 2415 sctp_hmaclist_t *hmaclist; 2416 uint32_t size; 2417 int i; 2418 2419 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize); 2420 2421 SCTP_INP_RLOCK(inp); 2422 hmaclist = inp->sctp_ep.local_hmacs; 2423 if (hmaclist == NULL) { 2424 /* no HMACs to return */ 2425 *optsize = sizeof(*shmac); 2426 SCTP_INP_RUNLOCK(inp); 2427 break; 2428 } 2429 /* is there room for all of the hmac ids? */ 2430 size = sizeof(*shmac) + (hmaclist->num_algo * 2431 sizeof(shmac->shmac_idents[0])); 2432 if ((size_t)(*optsize) < size) { 2433 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2434 error = EINVAL; 2435 SCTP_INP_RUNLOCK(inp); 2436 break; 2437 } 2438 /* copy in the list */ 2439 for (i = 0; i < hmaclist->num_algo; i++) 2440 shmac->shmac_idents[i] = hmaclist->hmac[i]; 2441 SCTP_INP_RUNLOCK(inp); 2442 *optsize = size; 2443 break; 2444 } 2445 case SCTP_AUTH_ACTIVE_KEY: 2446 { 2447 struct sctp_authkeyid *scact; 2448 2449 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize); 2450 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 2451 2452 if (stcb) { 2453 /* get the active key on the assoc */ 2454 scact->scact_keynumber = stcb->asoc.authinfo.assoc_keyid; 2455 SCTP_TCB_UNLOCK(stcb); 2456 } else { 2457 /* get the endpoint active key */ 2458 SCTP_INP_RLOCK(inp); 2459 scact->scact_keynumber = inp->sctp_ep.default_keyid; 2460 SCTP_INP_RUNLOCK(inp); 2461 } 2462 *optsize = sizeof(*scact); 2463 break; 2464 } 2465 case SCTP_LOCAL_AUTH_CHUNKS: 2466 { 2467 struct sctp_authchunks *sac; 2468 sctp_auth_chklist_t *chklist = NULL; 2469 size_t size = 0; 2470 2471 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2472 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2473 2474 if (stcb) { 2475 /* get off the assoc */ 2476 chklist = stcb->asoc.local_auth_chunks; 2477 /* is there enough space? */ 2478 size = sctp_auth_get_chklist_size(chklist); 2479 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2480 error = EINVAL; 2481 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2482 } else { 2483 /* copy in the chunks */ 2484 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2485 } 2486 SCTP_TCB_UNLOCK(stcb); 2487 } else { 2488 /* get off the endpoint */ 2489 SCTP_INP_RLOCK(inp); 2490 chklist = inp->sctp_ep.local_auth_chunks; 2491 /* is there enough space? */ 2492 size = sctp_auth_get_chklist_size(chklist); 2493 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2494 error = EINVAL; 2495 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2496 } else { 2497 /* copy in the chunks */ 2498 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2499 } 2500 SCTP_INP_RUNLOCK(inp); 2501 } 2502 *optsize = sizeof(struct sctp_authchunks) + size; 2503 break; 2504 } 2505 case SCTP_PEER_AUTH_CHUNKS: 2506 { 2507 struct sctp_authchunks *sac; 2508 sctp_auth_chklist_t *chklist = NULL; 2509 size_t size = 0; 2510 2511 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2512 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2513 2514 if (stcb) { 2515 /* get off the assoc */ 2516 chklist = stcb->asoc.peer_auth_chunks; 2517 /* is there enough space? */ 2518 size = sctp_auth_get_chklist_size(chklist); 2519 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2520 error = EINVAL; 2521 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2522 } else { 2523 /* copy in the chunks */ 2524 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2525 } 2526 SCTP_TCB_UNLOCK(stcb); 2527 } else { 2528 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2529 error = ENOENT; 2530 } 2531 *optsize = sizeof(struct sctp_authchunks) + size; 2532 break; 2533 } 2534 2535 2536 default: 2537 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 2538 error = ENOPROTOOPT; 2539 *optsize = 0; 2540 break; 2541 } /* end switch (sopt->sopt_name) */ 2542 return (error); 2543 } 2544 2545 static int 2546 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize, 2547 void *p) 2548 { 2549 int error, set_opt; 2550 uint32_t *mopt; 2551 struct sctp_tcb *stcb = NULL; 2552 struct sctp_inpcb *inp = NULL; 2553 uint32_t vrf_id; 2554 2555 if (optval == NULL) { 2556 SCTP_PRINTF("optval is NULL\n"); 2557 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2558 return (EINVAL); 2559 } 2560 inp = (struct sctp_inpcb *)so->so_pcb; 2561 if (inp == 0) { 2562 SCTP_PRINTF("inp is NULL?\n"); 2563 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2564 return EINVAL; 2565 } 2566 vrf_id = inp->def_vrf_id; 2567 2568 error = 0; 2569 switch (optname) { 2570 case SCTP_NODELAY: 2571 case SCTP_AUTOCLOSE: 2572 case SCTP_AUTO_ASCONF: 2573 case SCTP_EXPLICIT_EOR: 2574 case SCTP_DISABLE_FRAGMENTS: 2575 case SCTP_USE_EXT_RCVINFO: 2576 case SCTP_I_WANT_MAPPED_V4_ADDR: 2577 /* copy in the option value */ 2578 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 2579 set_opt = 0; 2580 if (error) 2581 break; 2582 switch (optname) { 2583 case SCTP_DISABLE_FRAGMENTS: 2584 set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT; 2585 break; 2586 case SCTP_AUTO_ASCONF: 2587 /* 2588 * NOTE: we don't really support this flag 2589 */ 2590 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 2591 /* only valid for bound all sockets */ 2592 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF; 2593 } else { 2594 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2595 return (EINVAL); 2596 } 2597 break; 2598 case SCTP_EXPLICIT_EOR: 2599 set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR; 2600 break; 2601 case SCTP_USE_EXT_RCVINFO: 2602 set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO; 2603 break; 2604 case SCTP_I_WANT_MAPPED_V4_ADDR: 2605 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2606 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4; 2607 } else { 2608 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2609 return (EINVAL); 2610 } 2611 break; 2612 case SCTP_NODELAY: 2613 set_opt = SCTP_PCB_FLAGS_NODELAY; 2614 break; 2615 case SCTP_AUTOCLOSE: 2616 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2617 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 2618 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2619 return (EINVAL); 2620 } 2621 set_opt = SCTP_PCB_FLAGS_AUTOCLOSE; 2622 /* 2623 * The value is in ticks. Note this does not effect 2624 * old associations, only new ones. 2625 */ 2626 inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt); 2627 break; 2628 } 2629 SCTP_INP_WLOCK(inp); 2630 if (*mopt != 0) { 2631 sctp_feature_on(inp, set_opt); 2632 } else { 2633 sctp_feature_off(inp, set_opt); 2634 } 2635 SCTP_INP_WUNLOCK(inp); 2636 break; 2637 case SCTP_PARTIAL_DELIVERY_POINT: 2638 { 2639 uint32_t *value; 2640 2641 SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize); 2642 if (*value > SCTP_SB_LIMIT_RCV(so)) { 2643 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2644 error = EINVAL; 2645 break; 2646 } 2647 inp->partial_delivery_point = *value; 2648 } 2649 break; 2650 case SCTP_FRAGMENT_INTERLEAVE: 2651 /* not yet until we re-write sctp_recvmsg() */ 2652 { 2653 uint32_t *level; 2654 2655 SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize); 2656 if (*level == SCTP_FRAG_LEVEL_2) { 2657 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2658 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2659 } else if (*level == SCTP_FRAG_LEVEL_1) { 2660 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2661 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2662 } else if (*level == SCTP_FRAG_LEVEL_0) { 2663 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2664 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2665 2666 } else { 2667 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2668 error = EINVAL; 2669 } 2670 } 2671 break; 2672 case SCTP_CMT_ON_OFF: 2673 { 2674 struct sctp_assoc_value *av; 2675 2676 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2677 if (sctp_cmt_on_off) { 2678 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2679 if (stcb) { 2680 stcb->asoc.sctp_cmt_on_off = (uint8_t) av->assoc_value; 2681 SCTP_TCB_UNLOCK(stcb); 2682 } else { 2683 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2684 error = ENOTCONN; 2685 } 2686 } else { 2687 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 2688 error = ENOPROTOOPT; 2689 } 2690 } 2691 break; 2692 /* JRS - Set socket option for pluggable congestion control */ 2693 case SCTP_PLUGGABLE_CC: 2694 { 2695 struct sctp_assoc_value *av; 2696 2697 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2698 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2699 if (stcb) { 2700 switch (av->assoc_value) { 2701 /* 2702 * JRS - Standard TCP congestion 2703 * control 2704 */ 2705 case SCTP_CC_RFC2581: 2706 { 2707 stcb->asoc.congestion_control_module = SCTP_CC_RFC2581; 2708 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; 2709 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_cwnd_update_after_sack; 2710 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_cwnd_update_after_fr; 2711 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; 2712 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; 2713 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2714 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2715 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; 2716 SCTP_TCB_UNLOCK(stcb); 2717 break; 2718 } 2719 /* 2720 * JRS - High Speed TCP congestion 2721 * control (Floyd) 2722 */ 2723 case SCTP_CC_HSTCP: 2724 { 2725 stcb->asoc.congestion_control_module = SCTP_CC_HSTCP; 2726 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; 2727 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_hs_cwnd_update_after_sack; 2728 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_hs_cwnd_update_after_fr; 2729 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; 2730 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; 2731 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2732 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2733 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; 2734 SCTP_TCB_UNLOCK(stcb); 2735 break; 2736 } 2737 /* JRS - HTCP congestion control */ 2738 case SCTP_CC_HTCP: 2739 { 2740 stcb->asoc.congestion_control_module = SCTP_CC_HTCP; 2741 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_htcp_set_initial_cc_param; 2742 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_htcp_cwnd_update_after_sack; 2743 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_htcp_cwnd_update_after_fr; 2744 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_htcp_cwnd_update_after_timeout; 2745 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_htcp_cwnd_update_after_ecn_echo; 2746 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2747 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2748 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_htcp_cwnd_update_after_fr_timer; 2749 SCTP_TCB_UNLOCK(stcb); 2750 break; 2751 } 2752 /* 2753 * JRS - All other values are 2754 * invalid 2755 */ 2756 default: 2757 { 2758 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2759 error = EINVAL; 2760 SCTP_TCB_UNLOCK(stcb); 2761 break; 2762 } 2763 } 2764 } else { 2765 switch (av->assoc_value) { 2766 case SCTP_CC_RFC2581: 2767 case SCTP_CC_HSTCP: 2768 case SCTP_CC_HTCP: 2769 inp->sctp_ep.sctp_default_cc_module = av->assoc_value; 2770 break; 2771 default: 2772 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2773 error = EINVAL; 2774 break; 2775 }; 2776 } 2777 } 2778 break; 2779 case SCTP_CLR_STAT_LOG: 2780 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2781 error = EOPNOTSUPP; 2782 break; 2783 case SCTP_CONTEXT: 2784 { 2785 struct sctp_assoc_value *av; 2786 2787 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2788 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2789 2790 if (stcb) { 2791 stcb->asoc.context = av->assoc_value; 2792 SCTP_TCB_UNLOCK(stcb); 2793 } else { 2794 SCTP_INP_WLOCK(inp); 2795 inp->sctp_context = av->assoc_value; 2796 SCTP_INP_WUNLOCK(inp); 2797 } 2798 } 2799 break; 2800 case SCTP_VRF_ID: 2801 { 2802 uint32_t *default_vrfid; 2803 2804 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize); 2805 if (*default_vrfid > SCTP_MAX_VRF_ID) { 2806 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2807 error = EINVAL; 2808 break; 2809 } 2810 inp->def_vrf_id = *default_vrfid; 2811 break; 2812 } 2813 case SCTP_DEL_VRF_ID: 2814 { 2815 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2816 error = EOPNOTSUPP; 2817 break; 2818 } 2819 case SCTP_ADD_VRF_ID: 2820 { 2821 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2822 error = EOPNOTSUPP; 2823 break; 2824 } 2825 case SCTP_DELAYED_SACK: 2826 { 2827 struct sctp_sack_info *sack; 2828 2829 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize); 2830 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 2831 if (sack->sack_delay) { 2832 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) 2833 sack->sack_delay = SCTP_MAX_SACK_DELAY; 2834 } 2835 if (stcb) { 2836 if (sack->sack_delay) { 2837 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 2838 sack->sack_delay = TICKS_TO_MSEC(1); 2839 } 2840 stcb->asoc.delayed_ack = sack->sack_delay; 2841 } 2842 if (sack->sack_freq) { 2843 stcb->asoc.sack_freq = sack->sack_freq; 2844 } 2845 SCTP_TCB_UNLOCK(stcb); 2846 } else { 2847 SCTP_INP_WLOCK(inp); 2848 if (sack->sack_delay) { 2849 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 2850 sack->sack_delay = TICKS_TO_MSEC(1); 2851 } 2852 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay); 2853 } 2854 if (sack->sack_freq) { 2855 inp->sctp_ep.sctp_sack_freq = sack->sack_freq; 2856 } 2857 SCTP_INP_WUNLOCK(inp); 2858 } 2859 break; 2860 } 2861 case SCTP_AUTH_CHUNK: 2862 { 2863 struct sctp_authchunk *sauth; 2864 2865 SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize); 2866 2867 SCTP_INP_WLOCK(inp); 2868 if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) { 2869 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2870 error = EINVAL; 2871 } 2872 SCTP_INP_WUNLOCK(inp); 2873 break; 2874 } 2875 case SCTP_AUTH_KEY: 2876 { 2877 struct sctp_authkey *sca; 2878 struct sctp_keyhead *shared_keys; 2879 sctp_sharedkey_t *shared_key; 2880 sctp_key_t *key = NULL; 2881 size_t size; 2882 2883 SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize); 2884 SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id); 2885 size = optsize - sizeof(*sca); 2886 2887 if (stcb) { 2888 /* set it on the assoc */ 2889 shared_keys = &stcb->asoc.shared_keys; 2890 /* clear the cached keys for this key id */ 2891 sctp_clear_cachedkeys(stcb, sca->sca_keynumber); 2892 /* 2893 * create the new shared key and 2894 * insert/replace it 2895 */ 2896 if (size > 0) { 2897 key = sctp_set_key(sca->sca_key, (uint32_t) size); 2898 if (key == NULL) { 2899 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 2900 error = ENOMEM; 2901 SCTP_TCB_UNLOCK(stcb); 2902 break; 2903 } 2904 } 2905 shared_key = sctp_alloc_sharedkey(); 2906 if (shared_key == NULL) { 2907 sctp_free_key(key); 2908 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 2909 error = ENOMEM; 2910 SCTP_TCB_UNLOCK(stcb); 2911 break; 2912 } 2913 shared_key->key = key; 2914 shared_key->keyid = sca->sca_keynumber; 2915 sctp_insert_sharedkey(shared_keys, shared_key); 2916 SCTP_TCB_UNLOCK(stcb); 2917 } else { 2918 /* set it on the endpoint */ 2919 SCTP_INP_WLOCK(inp); 2920 shared_keys = &inp->sctp_ep.shared_keys; 2921 /* 2922 * clear the cached keys on all assocs for 2923 * this key id 2924 */ 2925 sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber); 2926 /* 2927 * create the new shared key and 2928 * insert/replace it 2929 */ 2930 if (size > 0) { 2931 key = sctp_set_key(sca->sca_key, (uint32_t) size); 2932 if (key == NULL) { 2933 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 2934 error = ENOMEM; 2935 SCTP_INP_WUNLOCK(inp); 2936 break; 2937 } 2938 } 2939 shared_key = sctp_alloc_sharedkey(); 2940 if (shared_key == NULL) { 2941 sctp_free_key(key); 2942 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 2943 error = ENOMEM; 2944 SCTP_INP_WUNLOCK(inp); 2945 break; 2946 } 2947 shared_key->key = key; 2948 shared_key->keyid = sca->sca_keynumber; 2949 sctp_insert_sharedkey(shared_keys, shared_key); 2950 SCTP_INP_WUNLOCK(inp); 2951 } 2952 break; 2953 } 2954 case SCTP_HMAC_IDENT: 2955 { 2956 struct sctp_hmacalgo *shmac; 2957 sctp_hmaclist_t *hmaclist; 2958 uint32_t hmacid; 2959 size_t size, i, found; 2960 2961 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize); 2962 size = (optsize - sizeof(*shmac)) / sizeof(shmac->shmac_idents[0]); 2963 hmaclist = sctp_alloc_hmaclist(size); 2964 if (hmaclist == NULL) { 2965 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 2966 error = ENOMEM; 2967 break; 2968 } 2969 for (i = 0; i < size; i++) { 2970 hmacid = shmac->shmac_idents[i]; 2971 if (sctp_auth_add_hmacid(hmaclist, (uint16_t) hmacid)) { 2972 /* invalid HMACs were found */ ; 2973 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2974 error = EINVAL; 2975 sctp_free_hmaclist(hmaclist); 2976 goto sctp_set_hmac_done; 2977 } 2978 } 2979 found = 0; 2980 for (i = 0; i < hmaclist->num_algo; i++) { 2981 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) { 2982 /* already in list */ 2983 found = 1; 2984 } 2985 } 2986 if (!found) { 2987 sctp_free_hmaclist(hmaclist); 2988 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2989 error = EINVAL; 2990 break; 2991 } 2992 /* set it on the endpoint */ 2993 SCTP_INP_WLOCK(inp); 2994 if (inp->sctp_ep.local_hmacs) 2995 sctp_free_hmaclist(inp->sctp_ep.local_hmacs); 2996 inp->sctp_ep.local_hmacs = hmaclist; 2997 SCTP_INP_WUNLOCK(inp); 2998 sctp_set_hmac_done: 2999 break; 3000 } 3001 case SCTP_AUTH_ACTIVE_KEY: 3002 { 3003 struct sctp_authkeyid *scact; 3004 3005 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize); 3006 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 3007 3008 /* set the active key on the right place */ 3009 if (stcb) { 3010 /* set the active key on the assoc */ 3011 if (sctp_auth_setactivekey(stcb, scact->scact_keynumber)) { 3012 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3013 error = EINVAL; 3014 } 3015 SCTP_TCB_UNLOCK(stcb); 3016 } else { 3017 /* set the active key on the endpoint */ 3018 SCTP_INP_WLOCK(inp); 3019 if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) { 3020 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3021 error = EINVAL; 3022 } 3023 SCTP_INP_WUNLOCK(inp); 3024 } 3025 break; 3026 } 3027 case SCTP_AUTH_DELETE_KEY: 3028 { 3029 struct sctp_authkeyid *scdel; 3030 3031 SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize); 3032 SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id); 3033 3034 /* delete the key from the right place */ 3035 if (stcb) { 3036 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) { 3037 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3038 error = EINVAL; 3039 } 3040 SCTP_TCB_UNLOCK(stcb); 3041 } else { 3042 SCTP_INP_WLOCK(inp); 3043 if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) { 3044 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3045 error = EINVAL; 3046 } 3047 SCTP_INP_WUNLOCK(inp); 3048 } 3049 break; 3050 } 3051 3052 case SCTP_RESET_STREAMS: 3053 { 3054 struct sctp_stream_reset *strrst; 3055 uint8_t send_in = 0, send_tsn = 0, send_out = 0; 3056 int i; 3057 3058 SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize); 3059 SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id); 3060 3061 if (stcb == NULL) { 3062 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 3063 error = ENOENT; 3064 break; 3065 } 3066 if (stcb->asoc.peer_supports_strreset == 0) { 3067 /* 3068 * Peer does not support it, we return 3069 * protocol not supported since this is true 3070 * for this feature and this peer, not the 3071 * socket request in general. 3072 */ 3073 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT); 3074 error = EPROTONOSUPPORT; 3075 SCTP_TCB_UNLOCK(stcb); 3076 break; 3077 } 3078 if (stcb->asoc.stream_reset_outstanding) { 3079 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 3080 error = EALREADY; 3081 SCTP_TCB_UNLOCK(stcb); 3082 break; 3083 } 3084 if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) { 3085 send_in = 1; 3086 } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) { 3087 send_out = 1; 3088 } else if (strrst->strrst_flags == SCTP_RESET_BOTH) { 3089 send_in = 1; 3090 send_out = 1; 3091 } else if (strrst->strrst_flags == SCTP_RESET_TSN) { 3092 send_tsn = 1; 3093 } else { 3094 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3095 error = EINVAL; 3096 SCTP_TCB_UNLOCK(stcb); 3097 break; 3098 } 3099 for (i = 0; i < strrst->strrst_num_streams; i++) { 3100 if ((send_in) && 3101 3102 (strrst->strrst_list[i] > stcb->asoc.streamincnt)) { 3103 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3104 error = EINVAL; 3105 goto get_out; 3106 } 3107 if ((send_out) && 3108 (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) { 3109 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3110 error = EINVAL; 3111 goto get_out; 3112 } 3113 } 3114 if (error) { 3115 get_out: 3116 SCTP_TCB_UNLOCK(stcb); 3117 break; 3118 } 3119 error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams, 3120 strrst->strrst_list, 3121 send_out, (stcb->asoc.str_reset_seq_in - 3), 3122 send_in, send_tsn); 3123 3124 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED); 3125 SCTP_TCB_UNLOCK(stcb); 3126 } 3127 break; 3128 3129 case SCTP_CONNECT_X: 3130 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 3131 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3132 error = EINVAL; 3133 break; 3134 } 3135 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0); 3136 break; 3137 3138 case SCTP_CONNECT_X_DELAYED: 3139 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 3140 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3141 error = EINVAL; 3142 break; 3143 } 3144 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1); 3145 break; 3146 3147 case SCTP_CONNECT_X_COMPLETE: 3148 { 3149 struct sockaddr *sa; 3150 struct sctp_nets *net; 3151 3152 /* FIXME MT: check correct? */ 3153 SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize); 3154 3155 /* find tcb */ 3156 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 3157 SCTP_INP_RLOCK(inp); 3158 stcb = LIST_FIRST(&inp->sctp_asoc_list); 3159 if (stcb) { 3160 SCTP_TCB_LOCK(stcb); 3161 net = sctp_findnet(stcb, sa); 3162 } 3163 SCTP_INP_RUNLOCK(inp); 3164 } else { 3165 /* 3166 * We increment here since 3167 * sctp_findassociation_ep_addr() wil do a 3168 * decrement if it finds the stcb as long as 3169 * the locked tcb (last argument) is NOT a 3170 * TCB.. aka NULL. 3171 */ 3172 SCTP_INP_INCR_REF(inp); 3173 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL); 3174 if (stcb == NULL) { 3175 SCTP_INP_DECR_REF(inp); 3176 } 3177 } 3178 3179 if (stcb == NULL) { 3180 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 3181 error = ENOENT; 3182 break; 3183 } 3184 if (stcb->asoc.delayed_connection == 1) { 3185 stcb->asoc.delayed_connection = 0; 3186 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 3187 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb, 3188 stcb->asoc.primary_destination, 3189 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9); 3190 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 3191 } else { 3192 /* 3193 * already expired or did not use delayed 3194 * connectx 3195 */ 3196 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 3197 error = EALREADY; 3198 } 3199 SCTP_TCB_UNLOCK(stcb); 3200 } 3201 break; 3202 case SCTP_MAX_BURST: 3203 { 3204 uint8_t *burst; 3205 3206 SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize); 3207 3208 SCTP_INP_WLOCK(inp); 3209 if (*burst) { 3210 inp->sctp_ep.max_burst = *burst; 3211 } 3212 SCTP_INP_WUNLOCK(inp); 3213 } 3214 break; 3215 case SCTP_MAXSEG: 3216 { 3217 struct sctp_assoc_value *av; 3218 int ovh; 3219 3220 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3221 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3222 3223 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3224 ovh = SCTP_MED_OVERHEAD; 3225 } else { 3226 ovh = SCTP_MED_V4_OVERHEAD; 3227 } 3228 if (stcb) { 3229 if (av->assoc_value) { 3230 stcb->asoc.sctp_frag_point = (av->assoc_value + ovh); 3231 } else { 3232 stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3233 } 3234 SCTP_TCB_UNLOCK(stcb); 3235 } else { 3236 SCTP_INP_WLOCK(inp); 3237 /* 3238 * FIXME MT: I think this is not in tune 3239 * with the API ID 3240 */ 3241 if (av->assoc_value) { 3242 inp->sctp_frag_point = (av->assoc_value + ovh); 3243 } else { 3244 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3245 } 3246 SCTP_INP_WUNLOCK(inp); 3247 } 3248 } 3249 break; 3250 case SCTP_EVENTS: 3251 { 3252 struct sctp_event_subscribe *events; 3253 3254 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize); 3255 3256 SCTP_INP_WLOCK(inp); 3257 if (events->sctp_data_io_event) { 3258 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3259 } else { 3260 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3261 } 3262 3263 if (events->sctp_association_event) { 3264 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3265 } else { 3266 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3267 } 3268 3269 if (events->sctp_address_event) { 3270 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3271 } else { 3272 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3273 } 3274 3275 if (events->sctp_send_failure_event) { 3276 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3277 } else { 3278 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3279 } 3280 3281 if (events->sctp_peer_error_event) { 3282 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3283 } else { 3284 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3285 } 3286 3287 if (events->sctp_shutdown_event) { 3288 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3289 } else { 3290 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3291 } 3292 3293 if (events->sctp_partial_delivery_event) { 3294 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3295 } else { 3296 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3297 } 3298 3299 if (events->sctp_adaptation_layer_event) { 3300 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3301 } else { 3302 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3303 } 3304 3305 if (events->sctp_authentication_event) { 3306 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3307 } else { 3308 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3309 } 3310 3311 if (events->sctp_stream_reset_events) { 3312 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3313 } else { 3314 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3315 } 3316 SCTP_INP_WUNLOCK(inp); 3317 } 3318 break; 3319 3320 case SCTP_ADAPTATION_LAYER: 3321 { 3322 struct sctp_setadaptation *adap_bits; 3323 3324 SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize); 3325 SCTP_INP_WLOCK(inp); 3326 inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind; 3327 SCTP_INP_WUNLOCK(inp); 3328 } 3329 break; 3330 #ifdef SCTP_DEBUG 3331 case SCTP_SET_INITIAL_DBG_SEQ: 3332 { 3333 uint32_t *vvv; 3334 3335 SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize); 3336 SCTP_INP_WLOCK(inp); 3337 inp->sctp_ep.initial_sequence_debug = *vvv; 3338 SCTP_INP_WUNLOCK(inp); 3339 } 3340 break; 3341 #endif 3342 case SCTP_DEFAULT_SEND_PARAM: 3343 { 3344 struct sctp_sndrcvinfo *s_info; 3345 3346 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize); 3347 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 3348 3349 if (stcb) { 3350 if (s_info->sinfo_stream <= stcb->asoc.streamoutcnt) { 3351 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send))); 3352 } else { 3353 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3354 error = EINVAL; 3355 } 3356 SCTP_TCB_UNLOCK(stcb); 3357 } else { 3358 SCTP_INP_WLOCK(inp); 3359 memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send))); 3360 SCTP_INP_WUNLOCK(inp); 3361 } 3362 } 3363 break; 3364 case SCTP_PEER_ADDR_PARAMS: 3365 /* Applys to the specific association */ 3366 { 3367 struct sctp_paddrparams *paddrp; 3368 struct sctp_nets *net; 3369 3370 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize); 3371 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 3372 net = NULL; 3373 if (stcb) { 3374 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 3375 } else { 3376 /* 3377 * We increment here since 3378 * sctp_findassociation_ep_addr() wil do a 3379 * decrement if it finds the stcb as long as 3380 * the locked tcb (last argument) is NOT a 3381 * TCB.. aka NULL. 3382 */ 3383 SCTP_INP_INCR_REF(inp); 3384 stcb = sctp_findassociation_ep_addr(&inp, 3385 (struct sockaddr *)&paddrp->spp_address, 3386 &net, NULL, NULL); 3387 if (stcb == NULL) { 3388 SCTP_INP_DECR_REF(inp); 3389 } 3390 } 3391 if (stcb && (net == NULL)) { 3392 struct sockaddr *sa; 3393 3394 sa = (struct sockaddr *)&paddrp->spp_address; 3395 if (sa->sa_family == AF_INET) { 3396 struct sockaddr_in *sin; 3397 3398 sin = (struct sockaddr_in *)sa; 3399 if (sin->sin_addr.s_addr) { 3400 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3401 SCTP_TCB_UNLOCK(stcb); 3402 error = EINVAL; 3403 break; 3404 } 3405 } else if (sa->sa_family == AF_INET6) { 3406 struct sockaddr_in6 *sin6; 3407 3408 sin6 = (struct sockaddr_in6 *)sa; 3409 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 3410 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3411 SCTP_TCB_UNLOCK(stcb); 3412 error = EINVAL; 3413 break; 3414 } 3415 } else { 3416 error = EAFNOSUPPORT; 3417 SCTP_TCB_UNLOCK(stcb); 3418 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 3419 break; 3420 } 3421 } 3422 /* sanity checks */ 3423 if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) { 3424 if (stcb) 3425 SCTP_TCB_UNLOCK(stcb); 3426 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3427 return (EINVAL); 3428 } 3429 if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) { 3430 if (stcb) 3431 SCTP_TCB_UNLOCK(stcb); 3432 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3433 return (EINVAL); 3434 } 3435 if (stcb) { 3436 /************************TCB SPECIFIC SET ******************/ 3437 /* 3438 * do we change the timer for HB, we run 3439 * only one? 3440 */ 3441 int ovh = 0; 3442 3443 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3444 ovh = SCTP_MED_OVERHEAD; 3445 } else { 3446 ovh = SCTP_MED_V4_OVERHEAD; 3447 } 3448 3449 if (paddrp->spp_hbinterval) 3450 stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval; 3451 else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 3452 stcb->asoc.heart_beat_delay = 0; 3453 3454 /* network sets ? */ 3455 if (net) { 3456 /************************NET SPECIFIC SET ******************/ 3457 if (paddrp->spp_flags & SPP_HB_DEMAND) { 3458 /* on demand HB */ 3459 if (sctp_send_hb(stcb, 1, net) < 0) { 3460 /* asoc destroyed */ 3461 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3462 error = EINVAL; 3463 break; 3464 } 3465 } 3466 if (paddrp->spp_flags & SPP_HB_DISABLE) { 3467 net->dest_state |= SCTP_ADDR_NOHB; 3468 } 3469 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3470 net->dest_state &= ~SCTP_ADDR_NOHB; 3471 } 3472 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3473 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3474 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3475 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3476 } 3477 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3478 net->mtu = paddrp->spp_pathmtu + ovh; 3479 if (net->mtu < stcb->asoc.smallest_mtu) { 3480 #ifdef SCTP_PRINT_FOR_B_AND_M 3481 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n", 3482 net->mtu); 3483 #endif 3484 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3485 } 3486 } 3487 } 3488 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3489 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3490 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3491 } 3492 } 3493 if (paddrp->spp_pathmaxrxt) 3494 net->failure_threshold = paddrp->spp_pathmaxrxt; 3495 #ifdef INET 3496 if (paddrp->spp_flags & SPP_IPV4_TOS) { 3497 if (net->ro._l_addr.sin.sin_family == AF_INET) { 3498 net->tos_flowlabel = paddrp->spp_ipv4_tos & 0x000000fc; 3499 } 3500 } 3501 #endif 3502 #ifdef INET6 3503 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) { 3504 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 3505 net->tos_flowlabel = paddrp->spp_ipv6_flowlabel; 3506 } 3507 } 3508 #endif 3509 } else { 3510 /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/ 3511 if (paddrp->spp_pathmaxrxt) 3512 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt; 3513 3514 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3515 /* Turn back on the timer */ 3516 stcb->asoc.hb_is_disabled = 0; 3517 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 3518 } 3519 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3520 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3521 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3522 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3523 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3524 } 3525 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3526 net->mtu = paddrp->spp_pathmtu + ovh; 3527 if (net->mtu < stcb->asoc.smallest_mtu) { 3528 #ifdef SCTP_PRINT_FOR_B_AND_M 3529 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n", 3530 net->mtu); 3531 #endif 3532 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3533 } 3534 } 3535 } 3536 } 3537 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3538 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3539 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3540 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3541 } 3542 } 3543 } 3544 if (paddrp->spp_flags & SPP_HB_DISABLE) { 3545 int cnt_of_unconf = 0; 3546 struct sctp_nets *lnet; 3547 3548 stcb->asoc.hb_is_disabled = 1; 3549 TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) { 3550 if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) { 3551 cnt_of_unconf++; 3552 } 3553 } 3554 /* 3555 * stop the timer ONLY if we 3556 * have no unconfirmed 3557 * addresses 3558 */ 3559 if (cnt_of_unconf == 0) { 3560 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3561 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, 3562 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11); 3563 } 3564 } 3565 } 3566 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3567 /* start up the timer. */ 3568 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3569 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 3570 } 3571 } 3572 #ifdef INET 3573 if (paddrp->spp_flags & SPP_IPV4_TOS) 3574 stcb->asoc.default_tos = paddrp->spp_ipv4_tos & 0x000000fc; 3575 #endif 3576 #ifdef INET6 3577 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) 3578 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel; 3579 #endif 3580 3581 } 3582 SCTP_TCB_UNLOCK(stcb); 3583 } else { 3584 /************************NO TCB, SET TO default stuff ******************/ 3585 SCTP_INP_WLOCK(inp); 3586 /* 3587 * For the TOS/FLOWLABEL stuff you set it 3588 * with the options on the socket 3589 */ 3590 if (paddrp->spp_pathmaxrxt) { 3591 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt; 3592 } 3593 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 3594 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0; 3595 else if (paddrp->spp_hbinterval) { 3596 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL) 3597 paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL; 3598 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval); 3599 } 3600 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3601 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 3602 3603 } else if (paddrp->spp_flags & SPP_HB_DISABLE) { 3604 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 3605 } 3606 SCTP_INP_WUNLOCK(inp); 3607 } 3608 } 3609 break; 3610 case SCTP_RTOINFO: 3611 { 3612 struct sctp_rtoinfo *srto; 3613 uint32_t new_init, new_min, new_max; 3614 3615 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize); 3616 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 3617 3618 if (stcb) { 3619 if (srto->srto_initial) 3620 new_init = srto->srto_initial; 3621 else 3622 new_init = stcb->asoc.initial_rto; 3623 if (srto->srto_max) 3624 new_max = srto->srto_max; 3625 else 3626 new_max = stcb->asoc.maxrto; 3627 if (srto->srto_min) 3628 new_min = srto->srto_min; 3629 else 3630 new_min = stcb->asoc.minrto; 3631 if ((new_min <= new_init) && (new_init <= new_max)) { 3632 stcb->asoc.initial_rto = new_init; 3633 stcb->asoc.maxrto = new_max; 3634 stcb->asoc.minrto = new_min; 3635 } else { 3636 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDOM); 3637 error = EDOM; 3638 } 3639 SCTP_TCB_UNLOCK(stcb); 3640 } else { 3641 SCTP_INP_WLOCK(inp); 3642 if (srto->srto_initial) 3643 new_init = srto->srto_initial; 3644 else 3645 new_init = inp->sctp_ep.initial_rto; 3646 if (srto->srto_max) 3647 new_max = srto->srto_max; 3648 else 3649 new_max = inp->sctp_ep.sctp_maxrto; 3650 if (srto->srto_min) 3651 new_min = srto->srto_min; 3652 else 3653 new_min = inp->sctp_ep.sctp_minrto; 3654 if ((new_min <= new_init) && (new_init <= new_max)) { 3655 inp->sctp_ep.initial_rto = new_init; 3656 inp->sctp_ep.sctp_maxrto = new_max; 3657 inp->sctp_ep.sctp_minrto = new_min; 3658 } else { 3659 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDOM); 3660 error = EDOM; 3661 } 3662 SCTP_INP_WUNLOCK(inp); 3663 } 3664 } 3665 break; 3666 case SCTP_ASSOCINFO: 3667 { 3668 struct sctp_assocparams *sasoc; 3669 3670 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize); 3671 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 3672 if (sasoc->sasoc_cookie_life) { 3673 /* boundary check the cookie life */ 3674 if (sasoc->sasoc_cookie_life < 1000) 3675 sasoc->sasoc_cookie_life = 1000; 3676 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) { 3677 sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE; 3678 } 3679 } 3680 if (stcb) { 3681 if (sasoc->sasoc_asocmaxrxt) 3682 stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt; 3683 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 3684 sasoc->sasoc_peer_rwnd = 0; 3685 sasoc->sasoc_local_rwnd = 0; 3686 if (sasoc->sasoc_cookie_life) { 3687 stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 3688 } 3689 SCTP_TCB_UNLOCK(stcb); 3690 } else { 3691 SCTP_INP_WLOCK(inp); 3692 if (sasoc->sasoc_asocmaxrxt) 3693 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt; 3694 sasoc->sasoc_number_peer_destinations = 0; 3695 sasoc->sasoc_peer_rwnd = 0; 3696 sasoc->sasoc_local_rwnd = 0; 3697 if (sasoc->sasoc_cookie_life) { 3698 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 3699 } 3700 SCTP_INP_WUNLOCK(inp); 3701 } 3702 } 3703 break; 3704 case SCTP_INITMSG: 3705 { 3706 struct sctp_initmsg *sinit; 3707 3708 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize); 3709 SCTP_INP_WLOCK(inp); 3710 if (sinit->sinit_num_ostreams) 3711 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams; 3712 3713 if (sinit->sinit_max_instreams) 3714 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams; 3715 3716 if (sinit->sinit_max_attempts) 3717 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts; 3718 3719 if (sinit->sinit_max_init_timeo) 3720 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo; 3721 SCTP_INP_WUNLOCK(inp); 3722 } 3723 break; 3724 case SCTP_PRIMARY_ADDR: 3725 { 3726 struct sctp_setprim *spa; 3727 struct sctp_nets *net, *lnet; 3728 3729 SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize); 3730 SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id); 3731 3732 net = NULL; 3733 if (stcb) { 3734 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr); 3735 } else { 3736 /* 3737 * We increment here since 3738 * sctp_findassociation_ep_addr() wil do a 3739 * decrement if it finds the stcb as long as 3740 * the locked tcb (last argument) is NOT a 3741 * TCB.. aka NULL. 3742 */ 3743 SCTP_INP_INCR_REF(inp); 3744 stcb = sctp_findassociation_ep_addr(&inp, 3745 (struct sockaddr *)&spa->ssp_addr, 3746 &net, NULL, NULL); 3747 if (stcb == NULL) { 3748 SCTP_INP_DECR_REF(inp); 3749 } 3750 } 3751 3752 if ((stcb) && (net)) { 3753 if ((net != stcb->asoc.primary_destination) && 3754 (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) { 3755 /* Ok we need to set it */ 3756 lnet = stcb->asoc.primary_destination; 3757 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) { 3758 if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) { 3759 net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH; 3760 } 3761 net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY; 3762 } 3763 } 3764 } else { 3765 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3766 error = EINVAL; 3767 } 3768 if (stcb) { 3769 SCTP_TCB_UNLOCK(stcb); 3770 } 3771 } 3772 break; 3773 case SCTP_SET_DYNAMIC_PRIMARY: 3774 { 3775 union sctp_sockstore *ss; 3776 3777 error = priv_check(curthread, 3778 PRIV_NETINET_RESERVEDPORT); 3779 if (error) 3780 break; 3781 3782 SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize); 3783 /* SUPER USER CHECK? */ 3784 error = sctp_dynamic_set_primary(&ss->sa, vrf_id); 3785 } 3786 break; 3787 case SCTP_SET_PEER_PRIMARY_ADDR: 3788 { 3789 struct sctp_setpeerprim *sspp; 3790 3791 SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize); 3792 SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id); 3793 if (stcb != NULL) { 3794 struct sctp_ifa *ifa; 3795 3796 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr, 3797 stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED); 3798 if (ifa == NULL) { 3799 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3800 error = EINVAL; 3801 goto out_of_it; 3802 } 3803 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 3804 /* 3805 * Must validate the ifa found is in 3806 * our ep 3807 */ 3808 struct sctp_laddr *laddr; 3809 int found = 0; 3810 3811 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 3812 if (laddr->ifa == NULL) { 3813 SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n", 3814 __FUNCTION__); 3815 continue; 3816 } 3817 if (laddr->ifa == ifa) { 3818 found = 1; 3819 break; 3820 } 3821 } 3822 if (!found) { 3823 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3824 error = EINVAL; 3825 goto out_of_it; 3826 } 3827 } 3828 if (sctp_set_primary_ip_address_sa(stcb, 3829 (struct sockaddr *)&sspp->sspp_addr) != 0) { 3830 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3831 error = EINVAL; 3832 } 3833 out_of_it: 3834 SCTP_TCB_UNLOCK(stcb); 3835 } else { 3836 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3837 error = EINVAL; 3838 } 3839 3840 } 3841 break; 3842 case SCTP_BINDX_ADD_ADDR: 3843 { 3844 struct sctp_getaddresses *addrs; 3845 size_t sz; 3846 struct thread *td; 3847 int prison = 0; 3848 3849 td = (struct thread *)p; 3850 if (jailed(td->td_ucred)) { 3851 prison = 1; 3852 } 3853 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, 3854 optsize); 3855 if (addrs->addr->sa_family == AF_INET) { 3856 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 3857 if (optsize < sz) { 3858 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3859 error = EINVAL; 3860 break; 3861 } 3862 if (prison && prison_ip(td->td_ucred, 0, &(((struct sockaddr_in *)(addrs->addr))->sin_addr.s_addr))) { 3863 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRNOTAVAIL); 3864 error = EADDRNOTAVAIL; 3865 } 3866 } else if (addrs->addr->sa_family == AF_INET6) { 3867 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 3868 if (optsize < sz) { 3869 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3870 error = EINVAL; 3871 break; 3872 } 3873 /* JAIL XXXX Add else here for V6 */ 3874 } 3875 sctp_bindx_add_address(so, inp, addrs->addr, 3876 addrs->sget_assoc_id, vrf_id, 3877 &error, p); 3878 } 3879 break; 3880 case SCTP_BINDX_REM_ADDR: 3881 { 3882 struct sctp_getaddresses *addrs; 3883 size_t sz; 3884 struct thread *td; 3885 int prison = 0; 3886 3887 td = (struct thread *)p; 3888 if (jailed(td->td_ucred)) { 3889 prison = 1; 3890 } 3891 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize); 3892 if (addrs->addr->sa_family == AF_INET) { 3893 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 3894 if (optsize < sz) { 3895 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3896 error = EINVAL; 3897 break; 3898 } 3899 if (prison && prison_ip(td->td_ucred, 0, &(((struct sockaddr_in *)(addrs->addr))->sin_addr.s_addr))) { 3900 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRNOTAVAIL); 3901 error = EADDRNOTAVAIL; 3902 } 3903 } else if (addrs->addr->sa_family == AF_INET6) { 3904 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 3905 if (optsize < sz) { 3906 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3907 error = EINVAL; 3908 break; 3909 } 3910 /* JAIL XXXX Add else here for V6 */ 3911 } 3912 sctp_bindx_delete_address(so, inp, addrs->addr, 3913 addrs->sget_assoc_id, vrf_id, 3914 &error); 3915 } 3916 break; 3917 default: 3918 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 3919 error = ENOPROTOOPT; 3920 break; 3921 } /* end switch (opt) */ 3922 return (error); 3923 } 3924 3925 3926 int 3927 sctp_ctloutput(struct socket *so, struct sockopt *sopt) 3928 { 3929 void *optval = NULL; 3930 size_t optsize = 0; 3931 struct sctp_inpcb *inp; 3932 void *p; 3933 int error = 0; 3934 3935 inp = (struct sctp_inpcb *)so->so_pcb; 3936 if (inp == 0) { 3937 /* I made the same as TCP since we are not setup? */ 3938 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3939 return (ECONNRESET); 3940 } 3941 if (sopt->sopt_level != IPPROTO_SCTP) { 3942 /* wrong proto level... send back up to IP */ 3943 #ifdef INET6 3944 if (INP_CHECK_SOCKAF(so, AF_INET6)) 3945 error = ip6_ctloutput(so, sopt); 3946 else 3947 #endif /* INET6 */ 3948 error = ip_ctloutput(so, sopt); 3949 return (error); 3950 } 3951 optsize = sopt->sopt_valsize; 3952 if (optsize) { 3953 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT); 3954 if (optval == NULL) { 3955 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS); 3956 return (ENOBUFS); 3957 } 3958 error = sooptcopyin(sopt, optval, optsize, optsize); 3959 if (error) { 3960 SCTP_FREE(optval, SCTP_M_SOCKOPT); 3961 goto out; 3962 } 3963 } 3964 p = (void *)sopt->sopt_td; 3965 if (sopt->sopt_dir == SOPT_SET) { 3966 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p); 3967 } else if (sopt->sopt_dir == SOPT_GET) { 3968 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p); 3969 } else { 3970 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3971 error = EINVAL; 3972 } 3973 if ((error == 0) && (optval != NULL)) { 3974 error = sooptcopyout(sopt, optval, optsize); 3975 SCTP_FREE(optval, SCTP_M_SOCKOPT); 3976 } else if (optval != NULL) { 3977 SCTP_FREE(optval, SCTP_M_SOCKOPT); 3978 } 3979 out: 3980 return (error); 3981 } 3982 3983 3984 static int 3985 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p) 3986 { 3987 int error = 0; 3988 int create_lock_on = 0; 3989 uint32_t vrf_id; 3990 struct sctp_inpcb *inp; 3991 struct sctp_tcb *stcb = NULL; 3992 3993 inp = (struct sctp_inpcb *)so->so_pcb; 3994 if (inp == 0) { 3995 /* I made the same as TCP since we are not setup? */ 3996 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3997 return (ECONNRESET); 3998 } 3999 if (addr == NULL) { 4000 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4001 return EINVAL; 4002 } 4003 if ((addr->sa_family == AF_INET6) && (addr->sa_len != sizeof(struct sockaddr_in6))) { 4004 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4005 return (EINVAL); 4006 } 4007 if ((addr->sa_family == AF_INET) && (addr->sa_len != sizeof(struct sockaddr_in))) { 4008 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4009 return (EINVAL); 4010 } 4011 SCTP_ASOC_CREATE_LOCK(inp); 4012 create_lock_on = 1; 4013 4014 SCTP_INP_INCR_REF(inp); 4015 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 4016 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 4017 /* Should I really unlock ? */ 4018 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 4019 error = EFAULT; 4020 goto out_now; 4021 } 4022 #ifdef INET6 4023 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 4024 (addr->sa_family == AF_INET6)) { 4025 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4026 error = EINVAL; 4027 goto out_now; 4028 } 4029 #endif /* INET6 */ 4030 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 4031 SCTP_PCB_FLAGS_UNBOUND) { 4032 /* Bind a ephemeral port */ 4033 error = sctp_inpcb_bind(so, NULL, NULL, p); 4034 if (error) { 4035 goto out_now; 4036 } 4037 } 4038 /* Now do we connect? */ 4039 if (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) { 4040 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4041 error = EINVAL; 4042 goto out_now; 4043 } 4044 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 4045 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 4046 /* We are already connected AND the TCP model */ 4047 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 4048 error = EADDRINUSE; 4049 goto out_now; 4050 } 4051 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4052 SCTP_INP_RLOCK(inp); 4053 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4054 SCTP_INP_RUNLOCK(inp); 4055 } else { 4056 /* 4057 * We increment here since sctp_findassociation_ep_addr() 4058 * wil do a decrement if it finds the stcb as long as the 4059 * locked tcb (last argument) is NOT a TCB.. aka NULL. 4060 */ 4061 SCTP_INP_INCR_REF(inp); 4062 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL); 4063 if (stcb == NULL) { 4064 SCTP_INP_DECR_REF(inp); 4065 } else { 4066 SCTP_TCB_LOCK(stcb); 4067 } 4068 } 4069 if (stcb != NULL) { 4070 /* Already have or am bring up an association */ 4071 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 4072 error = EALREADY; 4073 goto out_now; 4074 } 4075 vrf_id = inp->def_vrf_id; 4076 /* We are GOOD to go */ 4077 stcb = sctp_aloc_assoc(inp, addr, 1, &error, 0, vrf_id, p); 4078 if (stcb == NULL) { 4079 /* Gak! no memory */ 4080 goto out_now; 4081 } 4082 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 4083 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 4084 /* Set the connected flag so we can queue data */ 4085 soisconnecting(so); 4086 } 4087 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 4088 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 4089 4090 /* initialize authentication parameters for the assoc */ 4091 sctp_initialize_auth_params(inp, stcb); 4092 4093 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 4094 SCTP_TCB_UNLOCK(stcb); 4095 out_now: 4096 if (create_lock_on) { 4097 SCTP_ASOC_CREATE_UNLOCK(inp); 4098 } 4099 SCTP_INP_DECR_REF(inp); 4100 return error; 4101 } 4102 4103 int 4104 sctp_listen(struct socket *so, int backlog, struct thread *p) 4105 { 4106 /* 4107 * Note this module depends on the protocol processing being called 4108 * AFTER any socket level flags and backlog are applied to the 4109 * socket. The traditional way that the socket flags are applied is 4110 * AFTER protocol processing. We have made a change to the 4111 * sys/kern/uipc_socket.c module to reverse this but this MUST be in 4112 * place if the socket API for SCTP is to work properly. 4113 */ 4114 4115 int error = 0; 4116 struct sctp_inpcb *inp; 4117 4118 inp = (struct sctp_inpcb *)so->so_pcb; 4119 if (inp == 0) { 4120 /* I made the same as TCP since we are not setup? */ 4121 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4122 return (ECONNRESET); 4123 } 4124 SCTP_INP_RLOCK(inp); 4125 #ifdef SCTP_LOCK_LOGGING 4126 if (sctp_logging_level & SCTP_LOCK_LOGGING_ENABLE) { 4127 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK); 4128 } 4129 #endif 4130 SOCK_LOCK(so); 4131 error = solisten_proto_check(so); 4132 if (error) { 4133 SOCK_UNLOCK(so); 4134 SCTP_INP_RUNLOCK(inp); 4135 return (error); 4136 } 4137 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 4138 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 4139 /* We are already connected AND the TCP model */ 4140 SCTP_INP_RUNLOCK(inp); 4141 SOCK_UNLOCK(so); 4142 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 4143 return (EADDRINUSE); 4144 } 4145 if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) { 4146 /* We must do a bind. */ 4147 SOCK_UNLOCK(so); 4148 SCTP_INP_RUNLOCK(inp); 4149 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) { 4150 /* bind error, probably perm */ 4151 return (error); 4152 } 4153 SOCK_LOCK(so); 4154 } else { 4155 if (backlog != 0) { 4156 inp->sctp_flags |= SCTP_PCB_FLAGS_LISTENING; 4157 } else { 4158 inp->sctp_flags &= ~SCTP_PCB_FLAGS_LISTENING; 4159 } 4160 SCTP_INP_RUNLOCK(inp); 4161 } 4162 /* It appears for 7.0 and on, we must always call this. */ 4163 solisten_proto(so, backlog); 4164 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 4165 /* remove the ACCEPTCONN flag for one-to-many sockets */ 4166 so->so_options &= ~SO_ACCEPTCONN; 4167 } 4168 if (backlog == 0) { 4169 /* turning off listen */ 4170 so->so_options &= ~SO_ACCEPTCONN; 4171 } 4172 SOCK_UNLOCK(so); 4173 return (error); 4174 } 4175 4176 static int sctp_defered_wakeup_cnt = 0; 4177 4178 int 4179 sctp_accept(struct socket *so, struct sockaddr **addr) 4180 { 4181 struct sctp_tcb *stcb; 4182 struct sctp_inpcb *inp; 4183 union sctp_sockstore store; 4184 4185 int error; 4186 4187 inp = (struct sctp_inpcb *)so->so_pcb; 4188 4189 if (inp == 0) { 4190 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4191 return (ECONNRESET); 4192 } 4193 SCTP_INP_RLOCK(inp); 4194 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 4195 SCTP_INP_RUNLOCK(inp); 4196 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 4197 return (EOPNOTSUPP); 4198 } 4199 if (so->so_state & SS_ISDISCONNECTED) { 4200 SCTP_INP_RUNLOCK(inp); 4201 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED); 4202 return (ECONNABORTED); 4203 } 4204 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4205 if (stcb == NULL) { 4206 SCTP_INP_RUNLOCK(inp); 4207 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4208 return (ECONNRESET); 4209 } 4210 SCTP_TCB_LOCK(stcb); 4211 SCTP_INP_RUNLOCK(inp); 4212 store = stcb->asoc.primary_destination->ro._l_addr; 4213 SCTP_TCB_UNLOCK(stcb); 4214 if (store.sa.sa_family == AF_INET) { 4215 struct sockaddr_in *sin; 4216 4217 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4218 sin->sin_family = AF_INET; 4219 sin->sin_len = sizeof(*sin); 4220 sin->sin_port = ((struct sockaddr_in *)&store)->sin_port; 4221 sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr; 4222 *addr = (struct sockaddr *)sin; 4223 } else { 4224 struct sockaddr_in6 *sin6; 4225 4226 SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6); 4227 sin6->sin6_family = AF_INET6; 4228 sin6->sin6_len = sizeof(*sin6); 4229 sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port; 4230 4231 sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr; 4232 if ((error = sa6_recoverscope(sin6)) != 0) { 4233 SCTP_FREE_SONAME(sin6); 4234 return (error); 4235 } 4236 *addr = (struct sockaddr *)sin6; 4237 } 4238 /* Wake any delayed sleep action */ 4239 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { 4240 SCTP_INP_WLOCK(inp); 4241 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE; 4242 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) { 4243 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT; 4244 SCTP_INP_WUNLOCK(inp); 4245 SOCKBUF_LOCK(&inp->sctp_socket->so_snd); 4246 if (sowriteable(inp->sctp_socket)) { 4247 sowwakeup_locked(inp->sctp_socket); 4248 } else { 4249 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd); 4250 } 4251 SCTP_INP_WLOCK(inp); 4252 } 4253 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) { 4254 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT; 4255 SCTP_INP_WUNLOCK(inp); 4256 SOCKBUF_LOCK(&inp->sctp_socket->so_rcv); 4257 if (soreadable(inp->sctp_socket)) { 4258 sctp_defered_wakeup_cnt++; 4259 sorwakeup_locked(inp->sctp_socket); 4260 } else { 4261 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv); 4262 } 4263 SCTP_INP_WLOCK(inp); 4264 } 4265 SCTP_INP_WUNLOCK(inp); 4266 } 4267 return (0); 4268 } 4269 4270 int 4271 sctp_ingetaddr(struct socket *so, struct sockaddr **addr) 4272 { 4273 struct sockaddr_in *sin; 4274 uint32_t vrf_id; 4275 struct sctp_inpcb *inp; 4276 struct sctp_ifa *sctp_ifa; 4277 4278 /* 4279 * Do the malloc first in case it blocks. 4280 */ 4281 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4282 sin->sin_family = AF_INET; 4283 sin->sin_len = sizeof(*sin); 4284 inp = (struct sctp_inpcb *)so->so_pcb; 4285 if (!inp) { 4286 SCTP_FREE_SONAME(sin); 4287 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4288 return ECONNRESET; 4289 } 4290 SCTP_INP_RLOCK(inp); 4291 sin->sin_port = inp->sctp_lport; 4292 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 4293 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4294 struct sctp_tcb *stcb; 4295 struct sockaddr_in *sin_a; 4296 struct sctp_nets *net; 4297 int fnd; 4298 4299 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4300 if (stcb == NULL) { 4301 goto notConn; 4302 } 4303 fnd = 0; 4304 sin_a = NULL; 4305 SCTP_TCB_LOCK(stcb); 4306 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4307 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 4308 if (sin_a == NULL) 4309 /* this will make coverity happy */ 4310 continue; 4311 4312 if (sin_a->sin_family == AF_INET) { 4313 fnd = 1; 4314 break; 4315 } 4316 } 4317 if ((!fnd) || (sin_a == NULL)) { 4318 /* punt */ 4319 SCTP_TCB_UNLOCK(stcb); 4320 goto notConn; 4321 } 4322 vrf_id = inp->def_vrf_id; 4323 sctp_ifa = sctp_source_address_selection(inp, 4324 stcb, 4325 (sctp_route_t *) & net->ro, 4326 net, 0, vrf_id); 4327 if (sctp_ifa) { 4328 sin->sin_addr = sctp_ifa->address.sin.sin_addr; 4329 sctp_free_ifa(sctp_ifa); 4330 } 4331 SCTP_TCB_UNLOCK(stcb); 4332 } else { 4333 /* For the bound all case you get back 0 */ 4334 notConn: 4335 sin->sin_addr.s_addr = 0; 4336 } 4337 4338 } else { 4339 /* Take the first IPv4 address in the list */ 4340 struct sctp_laddr *laddr; 4341 int fnd = 0; 4342 4343 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4344 if (laddr->ifa->address.sa.sa_family == AF_INET) { 4345 struct sockaddr_in *sin_a; 4346 4347 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa; 4348 sin->sin_addr = sin_a->sin_addr; 4349 fnd = 1; 4350 break; 4351 } 4352 } 4353 if (!fnd) { 4354 SCTP_FREE_SONAME(sin); 4355 SCTP_INP_RUNLOCK(inp); 4356 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4357 return ENOENT; 4358 } 4359 } 4360 SCTP_INP_RUNLOCK(inp); 4361 (*addr) = (struct sockaddr *)sin; 4362 return (0); 4363 } 4364 4365 int 4366 sctp_peeraddr(struct socket *so, struct sockaddr **addr) 4367 { 4368 struct sockaddr_in *sin = (struct sockaddr_in *)*addr; 4369 int fnd; 4370 struct sockaddr_in *sin_a; 4371 struct sctp_inpcb *inp; 4372 struct sctp_tcb *stcb; 4373 struct sctp_nets *net; 4374 4375 /* Do the malloc first in case it blocks. */ 4376 inp = (struct sctp_inpcb *)so->so_pcb; 4377 if ((inp == NULL) || 4378 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { 4379 /* UDP type and listeners will drop out here */ 4380 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 4381 return (ENOTCONN); 4382 } 4383 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4384 sin->sin_family = AF_INET; 4385 sin->sin_len = sizeof(*sin); 4386 4387 /* We must recapture incase we blocked */ 4388 inp = (struct sctp_inpcb *)so->so_pcb; 4389 if (!inp) { 4390 SCTP_FREE_SONAME(sin); 4391 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4392 return ECONNRESET; 4393 } 4394 SCTP_INP_RLOCK(inp); 4395 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4396 if (stcb) { 4397 SCTP_TCB_LOCK(stcb); 4398 } 4399 SCTP_INP_RUNLOCK(inp); 4400 if (stcb == NULL) { 4401 SCTP_FREE_SONAME(sin); 4402 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4403 return ECONNRESET; 4404 } 4405 fnd = 0; 4406 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4407 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 4408 if (sin_a->sin_family == AF_INET) { 4409 fnd = 1; 4410 sin->sin_port = stcb->rport; 4411 sin->sin_addr = sin_a->sin_addr; 4412 break; 4413 } 4414 } 4415 SCTP_TCB_UNLOCK(stcb); 4416 if (!fnd) { 4417 /* No IPv4 address */ 4418 SCTP_FREE_SONAME(sin); 4419 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4420 return ENOENT; 4421 } 4422 (*addr) = (struct sockaddr *)sin; 4423 return (0); 4424 } 4425 4426 struct pr_usrreqs sctp_usrreqs = { 4427 .pru_abort = sctp_abort, 4428 .pru_accept = sctp_accept, 4429 .pru_attach = sctp_attach, 4430 .pru_bind = sctp_bind, 4431 .pru_connect = sctp_connect, 4432 .pru_control = in_control, 4433 .pru_close = sctp_close, 4434 .pru_detach = sctp_close, 4435 .pru_sopoll = sopoll_generic, 4436 .pru_disconnect = sctp_disconnect, 4437 .pru_listen = sctp_listen, 4438 .pru_peeraddr = sctp_peeraddr, 4439 .pru_send = sctp_sendm, 4440 .pru_shutdown = sctp_shutdown, 4441 .pru_sockaddr = sctp_ingetaddr, 4442 .pru_sosend = sctp_sosend, 4443 .pru_soreceive = sctp_soreceive 4444 }; 4445