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