1 /*- 2 * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * a) Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * 10 * b) Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the distribution. 13 * 14 * c) Neither the name of Cisco Systems, Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $ */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 #include <netinet/sctp_os.h> 36 #include <sys/proc.h> 37 #include <netinet/sctp_pcb.h> 38 #include <netinet/sctp_header.h> 39 #include <netinet/sctp_var.h> 40 #if defined(INET6) 41 #endif 42 #include <netinet/sctp_sysctl.h> 43 #include <netinet/sctp_output.h> 44 #include <netinet/sctp_uio.h> 45 #include <netinet/sctp_asconf.h> 46 #include <netinet/sctputil.h> 47 #include <netinet/sctp_indata.h> 48 #include <netinet/sctp_timer.h> 49 #include <netinet/sctp_auth.h> 50 #include <netinet/sctp_bsd_addr.h> 51 #include <netinet/sctp_cc_functions.h> 52 #include <netinet/udp.h> 53 54 55 56 57 void 58 sctp_init(void) 59 { 60 u_long sb_max_adj; 61 62 bzero(&SCTP_BASE_STATS, sizeof(struct sctpstat)); 63 64 /* Initialize and modify the sysctled variables */ 65 sctp_init_sysctls(); 66 if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE) 67 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8); 68 /* 69 * Allow a user to take no more than 1/2 the number of clusters or 70 * the SB_MAX whichever is smaller for the send window. 71 */ 72 sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES)); 73 SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj, 74 (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT)); 75 /* 76 * Now for the recv window, should we take the same amount? or 77 * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For 78 * now I will just copy. 79 */ 80 SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace); 81 82 SCTP_BASE_VAR(first_time) = 0; 83 SCTP_BASE_VAR(sctp_pcb_initialized) = 0; 84 sctp_pcb_init(); 85 #if defined(SCTP_PACKET_LOGGING) 86 SCTP_BASE_VAR(packet_log_writers) = 0; 87 SCTP_BASE_VAR(packet_log_end) = 0; 88 bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE); 89 #endif 90 91 92 } 93 94 void 95 sctp_finish(void) 96 { 97 sctp_pcb_finish(); 98 } 99 100 101 102 void 103 sctp_pathmtu_adjustment(struct sctp_inpcb *inp, 104 struct sctp_tcb *stcb, 105 struct sctp_nets *net, 106 uint16_t nxtsz) 107 { 108 struct sctp_tmit_chunk *chk; 109 110 /* Adjust that too */ 111 stcb->asoc.smallest_mtu = nxtsz; 112 /* now off to subtract IP_DF flag if needed */ 113 #ifdef SCTP_PRINT_FOR_B_AND_M 114 SCTP_PRINTF("sctp_pathmtu_adjust called inp:%p stcb:%p net:%p nxtsz:%d\n", 115 inp, stcb, net, nxtsz); 116 #endif 117 TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) { 118 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) { 119 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 120 } 121 } 122 TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { 123 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) { 124 /* 125 * For this guy we also mark for immediate resend 126 * since we sent to big of chunk 127 */ 128 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 129 if (chk->sent < SCTP_DATAGRAM_RESEND) { 130 sctp_flight_size_decrease(chk); 131 sctp_total_flight_decrease(stcb, chk); 132 } 133 if (chk->sent != SCTP_DATAGRAM_RESEND) { 134 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt); 135 } 136 chk->sent = SCTP_DATAGRAM_RESEND; 137 chk->rec.data.doing_fast_retransmit = 0; 138 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) { 139 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU, 140 chk->whoTo->flight_size, 141 chk->book_size, 142 (uintptr_t) chk->whoTo, 143 chk->rec.data.TSN_seq); 144 } 145 /* Clear any time so NO RTT is being done */ 146 chk->do_rtt = 0; 147 } 148 } 149 } 150 151 static void 152 sctp_notify_mbuf(struct sctp_inpcb *inp, 153 struct sctp_tcb *stcb, 154 struct sctp_nets *net, 155 struct ip *ip, 156 struct sctphdr *sh) 157 { 158 struct icmp *icmph; 159 int totsz, tmr_stopped = 0; 160 uint16_t nxtsz; 161 162 /* protection */ 163 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 164 (ip == NULL) || (sh == NULL)) { 165 if (stcb != NULL) { 166 SCTP_TCB_UNLOCK(stcb); 167 } 168 return; 169 } 170 /* First job is to verify the vtag matches what I would send */ 171 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 172 SCTP_TCB_UNLOCK(stcb); 173 return; 174 } 175 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 176 sizeof(struct ip))); 177 if (icmph->icmp_type != ICMP_UNREACH) { 178 /* We only care about unreachable */ 179 SCTP_TCB_UNLOCK(stcb); 180 return; 181 } 182 if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) { 183 /* not a unreachable message due to frag. */ 184 SCTP_TCB_UNLOCK(stcb); 185 return; 186 } 187 totsz = ip->ip_len; 188 189 nxtsz = ntohs(icmph->icmp_nextmtu); 190 if (nxtsz == 0) { 191 /* 192 * old type router that does not tell us what the next size 193 * mtu is. Rats we will have to guess (in a educated fashion 194 * of course) 195 */ 196 nxtsz = find_next_best_mtu(totsz); 197 } 198 /* Stop any PMTU timer */ 199 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 200 tmr_stopped = 1; 201 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 202 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1); 203 } 204 /* Adjust destination size limit */ 205 if (net->mtu > nxtsz) { 206 net->mtu = nxtsz; 207 if (net->port) { 208 net->mtu -= sizeof(struct udphdr); 209 } 210 } 211 /* now what about the ep? */ 212 if (stcb->asoc.smallest_mtu > nxtsz) { 213 #ifdef SCTP_PRINT_FOR_B_AND_M 214 SCTP_PRINTF("notify_mbuf (ICMP) calls sctp_pathmtu_adjust mtu:%d\n", 215 nxtsz); 216 #endif 217 sctp_pathmtu_adjustment(inp, stcb, net, nxtsz); 218 } 219 if (tmr_stopped) 220 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 221 222 SCTP_TCB_UNLOCK(stcb); 223 } 224 225 226 void 227 sctp_notify(struct sctp_inpcb *inp, 228 struct ip *ip, 229 struct sctphdr *sh, 230 struct sockaddr *to, 231 struct sctp_tcb *stcb, 232 struct sctp_nets *net) 233 { 234 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 235 struct socket *so; 236 237 #endif 238 /* protection */ 239 int reason; 240 struct icmp *icmph; 241 242 243 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 244 (sh == NULL) || (to == NULL)) { 245 if (stcb) 246 SCTP_TCB_UNLOCK(stcb); 247 return; 248 } 249 /* First job is to verify the vtag matches what I would send */ 250 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 251 SCTP_TCB_UNLOCK(stcb); 252 return; 253 } 254 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 255 sizeof(struct ip))); 256 if (icmph->icmp_type != ICMP_UNREACH) { 257 /* We only care about unreachable */ 258 SCTP_TCB_UNLOCK(stcb); 259 return; 260 } 261 if ((icmph->icmp_code == ICMP_UNREACH_NET) || 262 (icmph->icmp_code == ICMP_UNREACH_HOST) || 263 (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) || 264 (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) || 265 (icmph->icmp_code == ICMP_UNREACH_ISOLATED) || 266 (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) || 267 (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) || 268 (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) { 269 270 /* 271 * Hmm reachablity problems we must examine closely. If its 272 * not reachable, we may have lost a network. Or if there is 273 * NO protocol at the other end named SCTP. well we consider 274 * it a OOTB abort. 275 */ 276 if (net->dest_state & SCTP_ADDR_REACHABLE) { 277 /* Ok that destination is NOT reachable */ 278 SCTP_PRINTF("ICMP (thresh %d/%d) takes interface %p down\n", 279 net->error_count, 280 net->failure_threshold, 281 net); 282 283 net->dest_state &= ~SCTP_ADDR_REACHABLE; 284 net->dest_state |= SCTP_ADDR_NOT_REACHABLE; 285 /* 286 * JRS 5/14/07 - If a destination is unreachable, 287 * the PF bit is turned off. This allows an 288 * unambiguous use of the PF bit for destinations 289 * that are reachable but potentially failed. If the 290 * destination is set to the unreachable state, also 291 * set the destination to the PF state. 292 */ 293 /* 294 * Add debug message here if destination is not in 295 * PF state. 296 */ 297 /* Stop any running T3 timers here? */ 298 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off) && SCTP_BASE_SYSCTL(sctp_cmt_pf)) { 299 net->dest_state &= ~SCTP_ADDR_PF; 300 SCTPDBG(SCTP_DEBUG_TIMER4, "Destination %p moved from PF to unreachable.\n", 301 net); 302 } 303 net->error_count = net->failure_threshold + 1; 304 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, 305 stcb, SCTP_FAILED_THRESHOLD, 306 (void *)net, SCTP_SO_NOT_LOCKED); 307 } 308 SCTP_TCB_UNLOCK(stcb); 309 } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) || 310 (icmph->icmp_code == ICMP_UNREACH_PORT)) { 311 /* 312 * Here the peer is either playing tricks on us, including 313 * an address that belongs to someone who does not support 314 * SCTP OR was a userland implementation that shutdown and 315 * now is dead. In either case treat it like a OOTB abort 316 * with no TCB 317 */ 318 reason = SCTP_PEER_FAULTY; 319 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED); 320 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 321 so = SCTP_INP_SO(inp); 322 atomic_add_int(&stcb->asoc.refcnt, 1); 323 SCTP_TCB_UNLOCK(stcb); 324 SCTP_SOCKET_LOCK(so, 1); 325 SCTP_TCB_LOCK(stcb); 326 atomic_subtract_int(&stcb->asoc.refcnt, 1); 327 #endif 328 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2); 329 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 330 SCTP_SOCKET_UNLOCK(so, 1); 331 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */ 332 #endif 333 /* no need to unlock here, since the TCB is gone */ 334 } else { 335 SCTP_TCB_UNLOCK(stcb); 336 } 337 } 338 339 void 340 sctp_ctlinput(cmd, sa, vip) 341 int cmd; 342 struct sockaddr *sa; 343 void *vip; 344 { 345 struct ip *ip = vip; 346 struct sctphdr *sh; 347 uint32_t vrf_id; 348 349 /* FIX, for non-bsd is this right? */ 350 vrf_id = SCTP_DEFAULT_VRFID; 351 if (sa->sa_family != AF_INET || 352 ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) { 353 return; 354 } 355 if (PRC_IS_REDIRECT(cmd)) { 356 ip = 0; 357 } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) { 358 return; 359 } 360 if (ip) { 361 struct sctp_inpcb *inp = NULL; 362 struct sctp_tcb *stcb = NULL; 363 struct sctp_nets *net = NULL; 364 struct sockaddr_in to, from; 365 366 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2)); 367 bzero(&to, sizeof(to)); 368 bzero(&from, sizeof(from)); 369 from.sin_family = to.sin_family = AF_INET; 370 from.sin_len = to.sin_len = sizeof(to); 371 from.sin_port = sh->src_port; 372 from.sin_addr = ip->ip_src; 373 to.sin_port = sh->dest_port; 374 to.sin_addr = ip->ip_dst; 375 376 /* 377 * 'to' holds the dest of the packet that failed to be sent. 378 * 'from' holds our local endpoint address. Thus we reverse 379 * the to and the from in the lookup. 380 */ 381 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from, 382 (struct sockaddr *)&to, 383 &inp, &net, 1, vrf_id); 384 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) { 385 if (cmd != PRC_MSGSIZE) { 386 sctp_notify(inp, ip, sh, 387 (struct sockaddr *)&to, stcb, 388 net); 389 } else { 390 /* handle possible ICMP size messages */ 391 sctp_notify_mbuf(inp, stcb, net, ip, sh); 392 } 393 } else { 394 if ((stcb == NULL) && (inp != NULL)) { 395 /* reduce ref-count */ 396 SCTP_INP_WLOCK(inp); 397 SCTP_INP_DECR_REF(inp); 398 SCTP_INP_WUNLOCK(inp); 399 } 400 } 401 } 402 return; 403 } 404 405 static int 406 sctp_getcred(SYSCTL_HANDLER_ARGS) 407 { 408 struct xucred xuc; 409 struct sockaddr_in addrs[2]; 410 struct sctp_inpcb *inp; 411 struct sctp_nets *net; 412 struct sctp_tcb *stcb; 413 int error; 414 uint32_t vrf_id; 415 416 /* FIX, for non-bsd is this right? */ 417 vrf_id = SCTP_DEFAULT_VRFID; 418 419 error = priv_check(req->td, PRIV_NETINET_GETCRED); 420 421 if (error) 422 return (error); 423 424 error = SYSCTL_IN(req, addrs, sizeof(addrs)); 425 if (error) 426 return (error); 427 428 stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]), 429 sintosa(&addrs[1]), 430 &inp, &net, 1, vrf_id); 431 if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) { 432 if ((inp != NULL) && (stcb == NULL)) { 433 /* reduce ref-count */ 434 SCTP_INP_WLOCK(inp); 435 SCTP_INP_DECR_REF(inp); 436 goto cred_can_cont; 437 } 438 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 439 error = ENOENT; 440 goto out; 441 } 442 SCTP_TCB_UNLOCK(stcb); 443 /* 444 * We use the write lock here, only since in the error leg we need 445 * it. If we used RLOCK, then we would have to 446 * wlock/decr/unlock/rlock. Which in theory could create a hole. 447 * Better to use higher wlock. 448 */ 449 SCTP_INP_WLOCK(inp); 450 cred_can_cont: 451 error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket); 452 if (error) { 453 SCTP_INP_WUNLOCK(inp); 454 goto out; 455 } 456 cru2x(inp->sctp_socket->so_cred, &xuc); 457 SCTP_INP_WUNLOCK(inp); 458 error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred)); 459 out: 460 return (error); 461 } 462 463 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW, 464 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection"); 465 466 467 static void 468 sctp_abort(struct socket *so) 469 { 470 struct sctp_inpcb *inp; 471 uint32_t flags; 472 473 inp = (struct sctp_inpcb *)so->so_pcb; 474 if (inp == 0) { 475 return; 476 } 477 sctp_must_try_again: 478 flags = inp->sctp_flags; 479 #ifdef SCTP_LOG_CLOSING 480 sctp_log_closing(inp, NULL, 17); 481 #endif 482 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 483 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 484 #ifdef SCTP_LOG_CLOSING 485 sctp_log_closing(inp, NULL, 16); 486 #endif 487 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 488 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 489 SOCK_LOCK(so); 490 SCTP_SB_CLEAR(so->so_snd); 491 /* 492 * same for the rcv ones, they are only here for the 493 * accounting/select. 494 */ 495 SCTP_SB_CLEAR(so->so_rcv); 496 497 /* Now null out the reference, we are completely detached. */ 498 so->so_pcb = NULL; 499 SOCK_UNLOCK(so); 500 } else { 501 flags = inp->sctp_flags; 502 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 503 goto sctp_must_try_again; 504 } 505 } 506 return; 507 } 508 509 static int 510 sctp_attach(struct socket *so, int proto, struct thread *p) 511 { 512 struct sctp_inpcb *inp; 513 struct inpcb *ip_inp; 514 int error; 515 uint32_t vrf_id = SCTP_DEFAULT_VRFID; 516 517 #ifdef IPSEC 518 uint32_t flags; 519 520 #endif 521 522 inp = (struct sctp_inpcb *)so->so_pcb; 523 if (inp != 0) { 524 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 525 return EINVAL; 526 } 527 if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { 528 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace)); 529 if (error) { 530 return error; 531 } 532 } 533 error = sctp_inpcb_alloc(so, vrf_id); 534 if (error) { 535 return error; 536 } 537 inp = (struct sctp_inpcb *)so->so_pcb; 538 SCTP_INP_WLOCK(inp); 539 inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */ 540 ip_inp = &inp->ip_inp.inp; 541 ip_inp->inp_vflag |= INP_IPV4; 542 ip_inp->inp_ip_ttl = MODULE_GLOBAL(MOD_INET, ip_defttl); 543 #ifdef IPSEC 544 error = ipsec_init_policy(so, &ip_inp->inp_sp); 545 #ifdef SCTP_LOG_CLOSING 546 sctp_log_closing(inp, NULL, 17); 547 #endif 548 if (error != 0) { 549 flags = inp->sctp_flags; 550 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 551 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 552 #ifdef SCTP_LOG_CLOSING 553 sctp_log_closing(inp, NULL, 15); 554 #endif 555 SCTP_INP_WUNLOCK(inp); 556 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 557 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 558 } else { 559 SCTP_INP_WUNLOCK(inp); 560 } 561 return error; 562 } 563 #endif /* IPSEC */ 564 SCTP_INP_WUNLOCK(inp); 565 return 0; 566 } 567 568 static int 569 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p) 570 { 571 struct sctp_inpcb *inp = NULL; 572 int error; 573 574 #ifdef INET6 575 if (addr && addr->sa_family != AF_INET) { 576 /* must be a v4 address! */ 577 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 578 return EINVAL; 579 } 580 #endif /* INET6 */ 581 if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) { 582 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 583 return EINVAL; 584 } 585 inp = (struct sctp_inpcb *)so->so_pcb; 586 if (inp == 0) { 587 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 588 return EINVAL; 589 } 590 error = sctp_inpcb_bind(so, addr, NULL, p); 591 return error; 592 } 593 594 void 595 sctp_close(struct socket *so) 596 { 597 struct sctp_inpcb *inp; 598 uint32_t flags; 599 600 inp = (struct sctp_inpcb *)so->so_pcb; 601 if (inp == 0) 602 return; 603 604 /* 605 * Inform all the lower layer assoc that we are done. 606 */ 607 sctp_must_try_again: 608 flags = inp->sctp_flags; 609 #ifdef SCTP_LOG_CLOSING 610 sctp_log_closing(inp, NULL, 17); 611 #endif 612 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 613 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 614 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) || 615 (so->so_rcv.sb_cc > 0)) { 616 #ifdef SCTP_LOG_CLOSING 617 sctp_log_closing(inp, NULL, 13); 618 #endif 619 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 620 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 621 } else { 622 #ifdef SCTP_LOG_CLOSING 623 sctp_log_closing(inp, NULL, 14); 624 #endif 625 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE, 626 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 627 } 628 /* 629 * The socket is now detached, no matter what the state of 630 * the SCTP association. 631 */ 632 SOCK_LOCK(so); 633 SCTP_SB_CLEAR(so->so_snd); 634 /* 635 * same for the rcv ones, they are only here for the 636 * accounting/select. 637 */ 638 SCTP_SB_CLEAR(so->so_rcv); 639 640 /* Now null out the reference, we are completely detached. */ 641 so->so_pcb = NULL; 642 SOCK_UNLOCK(so); 643 } else { 644 flags = inp->sctp_flags; 645 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 646 goto sctp_must_try_again; 647 } 648 } 649 return; 650 } 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); 656 657 658 int 659 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 660 struct mbuf *control, struct thread *p) 661 { 662 struct sctp_inpcb *inp; 663 int error; 664 665 inp = (struct sctp_inpcb *)so->so_pcb; 666 if (inp == 0) { 667 if (control) { 668 sctp_m_freem(control); 669 control = NULL; 670 } 671 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 672 sctp_m_freem(m); 673 return EINVAL; 674 } 675 /* Got to have an to address if we are NOT a connected socket */ 676 if ((addr == NULL) && 677 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) || 678 (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE)) 679 ) { 680 goto connected_type; 681 } else if (addr == NULL) { 682 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 683 error = EDESTADDRREQ; 684 sctp_m_freem(m); 685 if (control) { 686 sctp_m_freem(control); 687 control = NULL; 688 } 689 return (error); 690 } 691 #ifdef INET6 692 if (addr->sa_family != AF_INET) { 693 /* must be a v4 address! */ 694 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 695 sctp_m_freem(m); 696 if (control) { 697 sctp_m_freem(control); 698 control = NULL; 699 } 700 error = EDESTADDRREQ; 701 return EDESTADDRREQ; 702 } 703 #endif /* INET6 */ 704 connected_type: 705 /* now what about control */ 706 if (control) { 707 if (inp->control) { 708 SCTP_PRINTF("huh? control set?\n"); 709 sctp_m_freem(inp->control); 710 inp->control = NULL; 711 } 712 inp->control = control; 713 } 714 /* Place the data */ 715 if (inp->pkt) { 716 SCTP_BUF_NEXT(inp->pkt_last) = m; 717 inp->pkt_last = m; 718 } else { 719 inp->pkt_last = inp->pkt = m; 720 } 721 if ( 722 /* FreeBSD uses a flag passed */ 723 ((flags & PRUS_MORETOCOME) == 0) 724 ) { 725 /* 726 * note with the current version this code will only be used 727 * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for 728 * re-defining sosend to use the sctp_sosend. One can 729 * optionally switch back to this code (by changing back the 730 * definitions) but this is not advisable. This code is used 731 * by FreeBSD when sending a file with sendfile() though. 732 */ 733 int ret; 734 735 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags); 736 inp->pkt = NULL; 737 inp->control = NULL; 738 return (ret); 739 } else { 740 return (0); 741 } 742 } 743 744 int 745 sctp_disconnect(struct socket *so) 746 { 747 struct sctp_inpcb *inp; 748 749 inp = (struct sctp_inpcb *)so->so_pcb; 750 if (inp == NULL) { 751 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 752 return (ENOTCONN); 753 } 754 SCTP_INP_RLOCK(inp); 755 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 756 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 757 if (SCTP_LIST_EMPTY(&inp->sctp_asoc_list)) { 758 /* No connection */ 759 SCTP_INP_RUNLOCK(inp); 760 return (0); 761 } else { 762 struct sctp_association *asoc; 763 struct sctp_tcb *stcb; 764 765 stcb = LIST_FIRST(&inp->sctp_asoc_list); 766 if (stcb == NULL) { 767 SCTP_INP_RUNLOCK(inp); 768 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 769 return (EINVAL); 770 } 771 SCTP_TCB_LOCK(stcb); 772 asoc = &stcb->asoc; 773 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 774 /* We are about to be freed, out of here */ 775 SCTP_TCB_UNLOCK(stcb); 776 SCTP_INP_RUNLOCK(inp); 777 return (0); 778 } 779 if (((so->so_options & SO_LINGER) && 780 (so->so_linger == 0)) || 781 (so->so_rcv.sb_cc > 0)) { 782 if (SCTP_GET_STATE(asoc) != 783 SCTP_STATE_COOKIE_WAIT) { 784 /* Left with Data unread */ 785 struct mbuf *err; 786 787 err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA); 788 if (err) { 789 /* 790 * Fill in the user 791 * initiated abort 792 */ 793 struct sctp_paramhdr *ph; 794 795 ph = mtod(err, struct sctp_paramhdr *); 796 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr); 797 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT); 798 ph->param_length = htons(SCTP_BUF_LEN(err)); 799 } 800 #if defined(SCTP_PANIC_ON_ABORT) 801 panic("disconnect does an abort"); 802 #endif 803 sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED); 804 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 805 } 806 SCTP_INP_RUNLOCK(inp); 807 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 808 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 809 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 810 } 811 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3); 812 /* No unlock tcb assoc is gone */ 813 return (0); 814 } 815 if (TAILQ_EMPTY(&asoc->send_queue) && 816 TAILQ_EMPTY(&asoc->sent_queue) && 817 (asoc->stream_queue_cnt == 0)) { 818 /* there is nothing queued to send, so done */ 819 if (asoc->locked_on_sending) { 820 goto abort_anyway; 821 } 822 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) && 823 (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) { 824 /* only send SHUTDOWN 1st time thru */ 825 sctp_stop_timers_for_shutdown(stcb); 826 sctp_send_shutdown(stcb, 827 stcb->asoc.primary_destination); 828 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 829 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 830 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 831 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 832 } 833 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 834 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 835 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 836 stcb->sctp_ep, stcb, 837 asoc->primary_destination); 838 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 839 stcb->sctp_ep, stcb, 840 asoc->primary_destination); 841 } 842 } else { 843 /* 844 * we still got (or just got) data to send, 845 * so set SHUTDOWN_PENDING 846 */ 847 /* 848 * XXX sockets draft says that SCTP_EOF 849 * should be sent with no data. currently, 850 * we will allow user data to be sent first 851 * and move to SHUTDOWN-PENDING 852 */ 853 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 854 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 855 asoc->primary_destination); 856 if (asoc->locked_on_sending) { 857 /* Locked to send out the data */ 858 struct sctp_stream_queue_pending *sp; 859 860 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 861 if (sp == NULL) { 862 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 863 asoc->locked_on_sending->stream_no); 864 } else { 865 if ((sp->length == 0) && (sp->msg_is_complete == 0)) 866 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 867 } 868 } 869 if (TAILQ_EMPTY(&asoc->send_queue) && 870 TAILQ_EMPTY(&asoc->sent_queue) && 871 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 872 struct mbuf *op_err; 873 874 abort_anyway: 875 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 876 0, M_DONTWAIT, 1, MT_DATA); 877 if (op_err) { 878 /* 879 * Fill in the user 880 * initiated abort 881 */ 882 struct sctp_paramhdr *ph; 883 uint32_t *ippp; 884 885 SCTP_BUF_LEN(op_err) = 886 (sizeof(struct sctp_paramhdr) + sizeof(uint32_t)); 887 ph = mtod(op_err, 888 struct sctp_paramhdr *); 889 ph->param_type = htons( 890 SCTP_CAUSE_USER_INITIATED_ABT); 891 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 892 ippp = (uint32_t *) (ph + 1); 893 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4); 894 } 895 #if defined(SCTP_PANIC_ON_ABORT) 896 panic("disconnect does an abort"); 897 #endif 898 899 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4; 900 sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED); 901 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 902 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 903 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 904 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 905 } 906 SCTP_INP_RUNLOCK(inp); 907 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5); 908 return (0); 909 } else { 910 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 911 } 912 } 913 soisdisconnecting(so); 914 SCTP_TCB_UNLOCK(stcb); 915 SCTP_INP_RUNLOCK(inp); 916 return (0); 917 } 918 /* not reached */ 919 } else { 920 /* UDP model does not support this */ 921 SCTP_INP_RUNLOCK(inp); 922 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 923 return EOPNOTSUPP; 924 } 925 } 926 927 int 928 sctp_flush(struct socket *so, int how) 929 { 930 /* 931 * We will just clear out the values and let subsequent close clear 932 * out the data, if any. Note if the user did a shutdown(SHUT_RD) 933 * they will not be able to read the data, the socket will block 934 * that from happening. 935 */ 936 if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) { 937 /* 938 * First make sure the sb will be happy, we don't use these 939 * except maybe the count 940 */ 941 so->so_rcv.sb_cc = 0; 942 so->so_rcv.sb_mbcnt = 0; 943 so->so_rcv.sb_mb = NULL; 944 } 945 if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) { 946 /* 947 * First make sure the sb will be happy, we don't use these 948 * except maybe the count 949 */ 950 so->so_snd.sb_cc = 0; 951 so->so_snd.sb_mbcnt = 0; 952 so->so_snd.sb_mb = NULL; 953 954 } 955 return (0); 956 } 957 958 int 959 sctp_shutdown(struct socket *so) 960 { 961 struct sctp_inpcb *inp; 962 963 inp = (struct sctp_inpcb *)so->so_pcb; 964 if (inp == 0) { 965 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 966 return EINVAL; 967 } 968 SCTP_INP_RLOCK(inp); 969 /* For UDP model this is a invalid call */ 970 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 971 /* Restore the flags that the soshutdown took away. */ 972 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; 973 /* This proc will wakeup for read and do nothing (I hope) */ 974 SCTP_INP_RUNLOCK(inp); 975 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 976 return (EOPNOTSUPP); 977 } 978 /* 979 * Ok if we reach here its the TCP model and it is either a SHUT_WR 980 * or SHUT_RDWR. This means we put the shutdown flag against it. 981 */ 982 { 983 struct sctp_tcb *stcb; 984 struct sctp_association *asoc; 985 986 if ((so->so_state & 987 (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) { 988 SCTP_INP_RUNLOCK(inp); 989 return (ENOTCONN); 990 } 991 socantsendmore(so); 992 993 stcb = LIST_FIRST(&inp->sctp_asoc_list); 994 if (stcb == NULL) { 995 /* 996 * Ok we hit the case that the shutdown call was 997 * made after an abort or something. Nothing to do 998 * now. 999 */ 1000 SCTP_INP_RUNLOCK(inp); 1001 return (0); 1002 } 1003 SCTP_TCB_LOCK(stcb); 1004 asoc = &stcb->asoc; 1005 if (TAILQ_EMPTY(&asoc->send_queue) && 1006 TAILQ_EMPTY(&asoc->sent_queue) && 1007 (asoc->stream_queue_cnt == 0)) { 1008 if (asoc->locked_on_sending) { 1009 goto abort_anyway; 1010 } 1011 /* there is nothing queued to send, so I'm done... */ 1012 if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) { 1013 /* only send SHUTDOWN the first time through */ 1014 sctp_stop_timers_for_shutdown(stcb); 1015 sctp_send_shutdown(stcb, 1016 stcb->asoc.primary_destination); 1017 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 1018 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 1019 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 1020 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 1021 } 1022 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 1023 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 1024 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 1025 stcb->sctp_ep, stcb, 1026 asoc->primary_destination); 1027 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 1028 stcb->sctp_ep, stcb, 1029 asoc->primary_destination); 1030 } 1031 } else { 1032 /* 1033 * we still got (or just got) data to send, so set 1034 * SHUTDOWN_PENDING 1035 */ 1036 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 1037 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 1038 asoc->primary_destination); 1039 1040 if (asoc->locked_on_sending) { 1041 /* Locked to send out the data */ 1042 struct sctp_stream_queue_pending *sp; 1043 1044 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 1045 if (sp == NULL) { 1046 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 1047 asoc->locked_on_sending->stream_no); 1048 } else { 1049 if ((sp->length == 0) && (sp->msg_is_complete == 0)) { 1050 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 1051 } 1052 } 1053 } 1054 if (TAILQ_EMPTY(&asoc->send_queue) && 1055 TAILQ_EMPTY(&asoc->sent_queue) && 1056 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 1057 struct mbuf *op_err; 1058 1059 abort_anyway: 1060 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 1061 0, M_DONTWAIT, 1, MT_DATA); 1062 if (op_err) { 1063 /* Fill in the user initiated abort */ 1064 struct sctp_paramhdr *ph; 1065 uint32_t *ippp; 1066 1067 SCTP_BUF_LEN(op_err) = 1068 sizeof(struct sctp_paramhdr) + sizeof(uint32_t); 1069 ph = mtod(op_err, 1070 struct sctp_paramhdr *); 1071 ph->param_type = htons( 1072 SCTP_CAUSE_USER_INITIATED_ABT); 1073 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 1074 ippp = (uint32_t *) (ph + 1); 1075 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1076 } 1077 #if defined(SCTP_PANIC_ON_ABORT) 1078 panic("shutdown does an abort"); 1079 #endif 1080 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6; 1081 sctp_abort_an_association(stcb->sctp_ep, stcb, 1082 SCTP_RESPONSE_TO_USER_REQ, 1083 op_err, SCTP_SO_LOCKED); 1084 goto skip_unlock; 1085 } else { 1086 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 1087 } 1088 } 1089 SCTP_TCB_UNLOCK(stcb); 1090 } 1091 skip_unlock: 1092 SCTP_INP_RUNLOCK(inp); 1093 return 0; 1094 } 1095 1096 /* 1097 * copies a "user" presentable address and removes embedded scope, etc. 1098 * returns 0 on success, 1 on error 1099 */ 1100 static uint32_t 1101 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa) 1102 { 1103 #ifdef INET6 1104 struct sockaddr_in6 lsa6; 1105 1106 sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa, 1107 &lsa6); 1108 #endif 1109 memcpy(ss, sa, sa->sa_len); 1110 return (0); 1111 } 1112 1113 1114 1115 /* 1116 * NOTE: assumes addr lock is held 1117 */ 1118 static size_t 1119 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp, 1120 struct sctp_tcb *stcb, 1121 size_t limit, 1122 struct sockaddr_storage *sas, 1123 uint32_t vrf_id) 1124 { 1125 struct sctp_ifn *sctp_ifn; 1126 struct sctp_ifa *sctp_ifa; 1127 int loopback_scope, ipv4_local_scope, local_scope, site_scope; 1128 size_t actual; 1129 int ipv4_addr_legal, ipv6_addr_legal; 1130 struct sctp_vrf *vrf; 1131 1132 actual = 0; 1133 if (limit <= 0) 1134 return (actual); 1135 1136 if (stcb) { 1137 /* Turn on all the appropriate scope */ 1138 loopback_scope = stcb->asoc.loopback_scope; 1139 ipv4_local_scope = stcb->asoc.ipv4_local_scope; 1140 local_scope = stcb->asoc.local_scope; 1141 site_scope = stcb->asoc.site_scope; 1142 } else { 1143 /* Turn on ALL scope, since we look at the EP */ 1144 loopback_scope = ipv4_local_scope = local_scope = 1145 site_scope = 1; 1146 } 1147 ipv4_addr_legal = ipv6_addr_legal = 0; 1148 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1149 ipv6_addr_legal = 1; 1150 if (SCTP_IPV6_V6ONLY(inp) == 0) { 1151 ipv4_addr_legal = 1; 1152 } 1153 } else { 1154 ipv4_addr_legal = 1; 1155 } 1156 vrf = sctp_find_vrf(vrf_id); 1157 if (vrf == NULL) { 1158 return (0); 1159 } 1160 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1161 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1162 if ((loopback_scope == 0) && 1163 SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) { 1164 /* Skip loopback if loopback_scope not set */ 1165 continue; 1166 } 1167 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1168 if (stcb) { 1169 /* 1170 * For the BOUND-ALL case, the list 1171 * associated with a TCB is Always 1172 * considered a reverse list.. i.e. 1173 * it lists addresses that are NOT 1174 * part of the association. If this 1175 * is one of those we must skip it. 1176 */ 1177 if (sctp_is_addr_restricted(stcb, 1178 sctp_ifa)) { 1179 continue; 1180 } 1181 } 1182 switch (sctp_ifa->address.sa.sa_family) { 1183 case AF_INET: 1184 if (ipv4_addr_legal) { 1185 struct sockaddr_in *sin; 1186 1187 sin = (struct sockaddr_in *)&sctp_ifa->address.sa; 1188 if (sin->sin_addr.s_addr == 0) { 1189 /* 1190 * we skip 1191 * unspecifed 1192 * addresses 1193 */ 1194 continue; 1195 } 1196 if ((ipv4_local_scope == 0) && 1197 (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) { 1198 continue; 1199 } 1200 #ifdef INET6 1201 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) { 1202 in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas); 1203 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1204 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6)); 1205 actual += sizeof(struct sockaddr_in6); 1206 } else { 1207 #endif 1208 memcpy(sas, sin, sizeof(*sin)); 1209 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport; 1210 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin)); 1211 actual += sizeof(*sin); 1212 #ifdef INET6 1213 } 1214 #endif 1215 if (actual >= limit) { 1216 return (actual); 1217 } 1218 } else { 1219 continue; 1220 } 1221 break; 1222 #ifdef INET6 1223 case AF_INET6: 1224 if (ipv6_addr_legal) { 1225 struct sockaddr_in6 *sin6; 1226 1227 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa; 1228 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 1229 /* 1230 * we skip 1231 * unspecifed 1232 * addresses 1233 */ 1234 continue; 1235 } 1236 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 1237 if (local_scope == 0) 1238 continue; 1239 if (sin6->sin6_scope_id == 0) { 1240 if (sa6_recoverscope(sin6) != 0) 1241 /* 1242 * 1243 * bad 1244 * 1245 * li 1246 * nk 1247 * 1248 * loc 1249 * al 1250 * 1251 * add 1252 * re 1253 * ss 1254 * */ 1255 continue; 1256 } 1257 } 1258 if ((site_scope == 0) && 1259 (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) { 1260 continue; 1261 } 1262 memcpy(sas, sin6, sizeof(*sin6)); 1263 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1264 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6)); 1265 actual += sizeof(*sin6); 1266 if (actual >= limit) { 1267 return (actual); 1268 } 1269 } else { 1270 continue; 1271 } 1272 break; 1273 #endif 1274 default: 1275 /* TSNH */ 1276 break; 1277 } 1278 } 1279 } 1280 } else { 1281 struct sctp_laddr *laddr; 1282 1283 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1284 if (stcb) { 1285 if (sctp_is_addr_restricted(stcb, laddr->ifa)) { 1286 continue; 1287 } 1288 } 1289 if (sctp_fill_user_address(sas, &laddr->ifa->address.sa)) 1290 continue; 1291 1292 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1293 sas = (struct sockaddr_storage *)((caddr_t)sas + 1294 laddr->ifa->address.sa.sa_len); 1295 actual += laddr->ifa->address.sa.sa_len; 1296 if (actual >= limit) { 1297 return (actual); 1298 } 1299 } 1300 } 1301 return (actual); 1302 } 1303 1304 static size_t 1305 sctp_fill_up_addresses(struct sctp_inpcb *inp, 1306 struct sctp_tcb *stcb, 1307 size_t limit, 1308 struct sockaddr_storage *sas) 1309 { 1310 size_t size = 0; 1311 1312 SCTP_IPI_ADDR_RLOCK(); 1313 /* fill up addresses for the endpoint's default vrf */ 1314 size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas, 1315 inp->def_vrf_id); 1316 SCTP_IPI_ADDR_RUNLOCK(); 1317 return (size); 1318 } 1319 1320 /* 1321 * NOTE: assumes addr lock is held 1322 */ 1323 static int 1324 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id) 1325 { 1326 int cnt = 0; 1327 struct sctp_vrf *vrf = NULL; 1328 1329 /* 1330 * In both sub-set bound an bound_all cases we return the MAXIMUM 1331 * number of addresses that you COULD get. In reality the sub-set 1332 * bound may have an exclusion list for a given TCB OR in the 1333 * bound-all case a TCB may NOT include the loopback or other 1334 * addresses as well. 1335 */ 1336 vrf = sctp_find_vrf(vrf_id); 1337 if (vrf == NULL) { 1338 return (0); 1339 } 1340 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1341 struct sctp_ifn *sctp_ifn; 1342 struct sctp_ifa *sctp_ifa; 1343 1344 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1345 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1346 /* Count them if they are the right type */ 1347 if (sctp_ifa->address.sa.sa_family == AF_INET) { 1348 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1349 cnt += sizeof(struct sockaddr_in6); 1350 else 1351 cnt += sizeof(struct sockaddr_in); 1352 1353 } else if (sctp_ifa->address.sa.sa_family == AF_INET6) 1354 cnt += sizeof(struct sockaddr_in6); 1355 } 1356 } 1357 } else { 1358 struct sctp_laddr *laddr; 1359 1360 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1361 if (laddr->ifa->address.sa.sa_family == AF_INET) { 1362 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1363 cnt += sizeof(struct sockaddr_in6); 1364 else 1365 cnt += sizeof(struct sockaddr_in); 1366 1367 } else if (laddr->ifa->address.sa.sa_family == AF_INET6) 1368 cnt += sizeof(struct sockaddr_in6); 1369 } 1370 } 1371 return (cnt); 1372 } 1373 1374 static int 1375 sctp_count_max_addresses(struct sctp_inpcb *inp) 1376 { 1377 int cnt = 0; 1378 1379 SCTP_IPI_ADDR_RLOCK(); 1380 /* count addresses for the endpoint's default VRF */ 1381 cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id); 1382 SCTP_IPI_ADDR_RUNLOCK(); 1383 return (cnt); 1384 } 1385 1386 static int 1387 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval, 1388 size_t optsize, void *p, int delay) 1389 { 1390 int error = 0; 1391 int creat_lock_on = 0; 1392 struct sctp_tcb *stcb = NULL; 1393 struct sockaddr *sa; 1394 int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr; 1395 int added = 0; 1396 uint32_t vrf_id; 1397 int bad_addresses = 0; 1398 sctp_assoc_t *a_id; 1399 1400 SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n"); 1401 1402 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 1403 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 1404 /* We are already connected AND the TCP model */ 1405 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 1406 return (EADDRINUSE); 1407 } 1408 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) && 1409 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) { 1410 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1411 return (EINVAL); 1412 } 1413 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 1414 SCTP_INP_RLOCK(inp); 1415 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1416 SCTP_INP_RUNLOCK(inp); 1417 } 1418 if (stcb) { 1419 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1420 return (EALREADY); 1421 } 1422 SCTP_INP_INCR_REF(inp); 1423 SCTP_ASOC_CREATE_LOCK(inp); 1424 creat_lock_on = 1; 1425 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 1426 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 1427 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 1428 error = EFAULT; 1429 goto out_now; 1430 } 1431 totaddrp = (int *)optval; 1432 totaddr = *totaddrp; 1433 sa = (struct sockaddr *)(totaddrp + 1); 1434 stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses); 1435 if ((stcb != NULL) || bad_addresses) { 1436 /* Already have or am bring up an association */ 1437 SCTP_ASOC_CREATE_UNLOCK(inp); 1438 creat_lock_on = 0; 1439 if (stcb) 1440 SCTP_TCB_UNLOCK(stcb); 1441 if (bad_addresses == 0) { 1442 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1443 error = EALREADY; 1444 } 1445 goto out_now; 1446 } 1447 #ifdef INET6 1448 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 1449 (num_v6 > 0)) { 1450 error = EINVAL; 1451 goto out_now; 1452 } 1453 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && 1454 (num_v4 > 0)) { 1455 struct in6pcb *inp6; 1456 1457 inp6 = (struct in6pcb *)inp; 1458 if (SCTP_IPV6_V6ONLY(inp6)) { 1459 /* 1460 * if IPV6_V6ONLY flag, ignore connections destined 1461 * to a v4 addr or v4-mapped addr 1462 */ 1463 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1464 error = EINVAL; 1465 goto out_now; 1466 } 1467 } 1468 #endif /* INET6 */ 1469 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 1470 SCTP_PCB_FLAGS_UNBOUND) { 1471 /* Bind a ephemeral port */ 1472 error = sctp_inpcb_bind(so, NULL, NULL, p); 1473 if (error) { 1474 goto out_now; 1475 } 1476 } 1477 /* FIX ME: do we want to pass in a vrf on the connect call? */ 1478 vrf_id = inp->def_vrf_id; 1479 1480 1481 /* We are GOOD to go */ 1482 stcb = sctp_aloc_assoc(inp, sa, 1, &error, 0, vrf_id, 1483 (struct thread *)p 1484 ); 1485 if (stcb == NULL) { 1486 /* Gak! no memory */ 1487 goto out_now; 1488 } 1489 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 1490 /* move to second address */ 1491 if (sa->sa_family == AF_INET) 1492 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in)); 1493 else 1494 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6)); 1495 1496 error = 0; 1497 added = sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error); 1498 /* Fill in the return id */ 1499 if (error) { 1500 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12); 1501 goto out_now; 1502 } 1503 a_id = (sctp_assoc_t *) optval; 1504 *a_id = sctp_get_associd(stcb); 1505 1506 /* initialize authentication parameters for the assoc */ 1507 sctp_initialize_auth_params(inp, stcb); 1508 1509 if (delay) { 1510 /* doing delayed connection */ 1511 stcb->asoc.delayed_connection = 1; 1512 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination); 1513 } else { 1514 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 1515 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 1516 } 1517 SCTP_TCB_UNLOCK(stcb); 1518 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 1519 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 1520 /* Set the connected flag so we can queue data */ 1521 soisconnecting(so); 1522 } 1523 out_now: 1524 if (creat_lock_on) { 1525 SCTP_ASOC_CREATE_UNLOCK(inp); 1526 } 1527 SCTP_INP_DECR_REF(inp); 1528 return error; 1529 } 1530 1531 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \ 1532 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\ 1533 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \ 1534 SCTP_INP_RLOCK(inp); \ 1535 stcb = LIST_FIRST(&inp->sctp_asoc_list); \ 1536 if (stcb) { \ 1537 SCTP_TCB_LOCK(stcb); \ 1538 } \ 1539 SCTP_INP_RUNLOCK(inp); \ 1540 } else if (assoc_id != 0) { \ 1541 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \ 1542 if (stcb == NULL) { \ 1543 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \ 1544 error = ENOENT; \ 1545 break; \ 1546 } \ 1547 } else { \ 1548 stcb = NULL; \ 1549 } \ 1550 } 1551 1552 1553 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\ 1554 if (size < sizeof(type)) { \ 1555 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \ 1556 error = EINVAL; \ 1557 break; \ 1558 } else { \ 1559 destp = (type *)srcp; \ 1560 } \ 1561 } 1562 1563 static int 1564 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize, 1565 void *p) 1566 { 1567 struct sctp_inpcb *inp = NULL; 1568 int error, val = 0; 1569 struct sctp_tcb *stcb = NULL; 1570 1571 if (optval == NULL) { 1572 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1573 return (EINVAL); 1574 } 1575 inp = (struct sctp_inpcb *)so->so_pcb; 1576 if (inp == 0) { 1577 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1578 return EINVAL; 1579 } 1580 error = 0; 1581 1582 switch (optname) { 1583 case SCTP_NODELAY: 1584 case SCTP_AUTOCLOSE: 1585 case SCTP_EXPLICIT_EOR: 1586 case SCTP_AUTO_ASCONF: 1587 case SCTP_DISABLE_FRAGMENTS: 1588 case SCTP_I_WANT_MAPPED_V4_ADDR: 1589 case SCTP_USE_EXT_RCVINFO: 1590 SCTP_INP_RLOCK(inp); 1591 switch (optname) { 1592 case SCTP_DISABLE_FRAGMENTS: 1593 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT); 1594 break; 1595 case SCTP_I_WANT_MAPPED_V4_ADDR: 1596 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4); 1597 break; 1598 case SCTP_AUTO_ASCONF: 1599 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1600 /* only valid for bound all sockets */ 1601 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF); 1602 } else { 1603 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1604 error = EINVAL; 1605 goto flags_out; 1606 } 1607 break; 1608 case SCTP_EXPLICIT_EOR: 1609 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR); 1610 break; 1611 case SCTP_NODELAY: 1612 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY); 1613 break; 1614 case SCTP_USE_EXT_RCVINFO: 1615 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO); 1616 break; 1617 case SCTP_AUTOCLOSE: 1618 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE)) 1619 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time); 1620 else 1621 val = 0; 1622 break; 1623 1624 default: 1625 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 1626 error = ENOPROTOOPT; 1627 } /* end switch (sopt->sopt_name) */ 1628 if (optname != SCTP_AUTOCLOSE) { 1629 /* make it an "on/off" value */ 1630 val = (val != 0); 1631 } 1632 if (*optsize < sizeof(val)) { 1633 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1634 error = EINVAL; 1635 } 1636 flags_out: 1637 SCTP_INP_RUNLOCK(inp); 1638 if (error == 0) { 1639 /* return the option value */ 1640 *(int *)optval = val; 1641 *optsize = sizeof(val); 1642 } 1643 break; 1644 case SCTP_GET_PACKET_LOG: 1645 { 1646 #ifdef SCTP_PACKET_LOGGING 1647 uint8_t *target; 1648 int ret; 1649 1650 SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize); 1651 ret = sctp_copy_out_packet_log(target, (int)*optsize); 1652 *optsize = ret; 1653 #else 1654 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1655 error = EOPNOTSUPP; 1656 #endif 1657 break; 1658 } 1659 case SCTP_REUSE_PORT: 1660 { 1661 uint32_t *value; 1662 1663 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) { 1664 /* Can't do this for a 1-m socket */ 1665 error = EINVAL; 1666 break; 1667 } 1668 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1669 *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE); 1670 *optsize = sizeof(uint32_t); 1671 } 1672 break; 1673 case SCTP_PARTIAL_DELIVERY_POINT: 1674 { 1675 uint32_t *value; 1676 1677 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1678 *value = inp->partial_delivery_point; 1679 *optsize = sizeof(uint32_t); 1680 } 1681 break; 1682 case SCTP_FRAGMENT_INTERLEAVE: 1683 { 1684 uint32_t *value; 1685 1686 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1687 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) { 1688 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) { 1689 *value = SCTP_FRAG_LEVEL_2; 1690 } else { 1691 *value = SCTP_FRAG_LEVEL_1; 1692 } 1693 } else { 1694 *value = SCTP_FRAG_LEVEL_0; 1695 } 1696 *optsize = sizeof(uint32_t); 1697 } 1698 break; 1699 case SCTP_CMT_ON_OFF: 1700 { 1701 struct sctp_assoc_value *av; 1702 1703 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1704 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) { 1705 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1706 if (stcb) { 1707 av->assoc_value = stcb->asoc.sctp_cmt_on_off; 1708 SCTP_TCB_UNLOCK(stcb); 1709 1710 } else { 1711 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1712 error = ENOTCONN; 1713 } 1714 } else { 1715 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 1716 error = ENOPROTOOPT; 1717 } 1718 *optsize = sizeof(*av); 1719 } 1720 break; 1721 /* EY - set socket option for nr_sacks */ 1722 case SCTP_NR_SACK_ON_OFF: 1723 { 1724 struct sctp_assoc_value *av; 1725 1726 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1727 if (SCTP_BASE_SYSCTL(sctp_nr_sack_on_off)) { 1728 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1729 if (stcb) { 1730 av->assoc_value = stcb->asoc.sctp_nr_sack_on_off; 1731 SCTP_TCB_UNLOCK(stcb); 1732 1733 } else { 1734 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1735 error = ENOTCONN; 1736 } 1737 } else { 1738 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 1739 error = ENOPROTOOPT; 1740 } 1741 *optsize = sizeof(*av); 1742 } 1743 break; 1744 /* JRS - Get socket option for pluggable congestion control */ 1745 case SCTP_PLUGGABLE_CC: 1746 { 1747 struct sctp_assoc_value *av; 1748 1749 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1750 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1751 if (stcb) { 1752 av->assoc_value = stcb->asoc.congestion_control_module; 1753 SCTP_TCB_UNLOCK(stcb); 1754 } else { 1755 av->assoc_value = inp->sctp_ep.sctp_default_cc_module; 1756 } 1757 *optsize = sizeof(*av); 1758 } 1759 break; 1760 case SCTP_GET_ADDR_LEN: 1761 { 1762 struct sctp_assoc_value *av; 1763 1764 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1765 error = EINVAL; 1766 #ifdef INET 1767 if (av->assoc_value == AF_INET) { 1768 av->assoc_value = sizeof(struct sockaddr_in); 1769 error = 0; 1770 } 1771 #endif 1772 #ifdef INET6 1773 if (av->assoc_value == AF_INET6) { 1774 av->assoc_value = sizeof(struct sockaddr_in6); 1775 error = 0; 1776 } 1777 #endif 1778 if (error) { 1779 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1780 } 1781 *optsize = sizeof(*av); 1782 } 1783 break; 1784 case SCTP_GET_ASSOC_NUMBER: 1785 { 1786 uint32_t *value, cnt; 1787 1788 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1789 cnt = 0; 1790 SCTP_INP_RLOCK(inp); 1791 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1792 cnt++; 1793 } 1794 SCTP_INP_RUNLOCK(inp); 1795 *value = cnt; 1796 *optsize = sizeof(uint32_t); 1797 } 1798 break; 1799 1800 case SCTP_GET_ASSOC_ID_LIST: 1801 { 1802 struct sctp_assoc_ids *ids; 1803 unsigned int at, limit; 1804 1805 SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize); 1806 at = 0; 1807 limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t); 1808 SCTP_INP_RLOCK(inp); 1809 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1810 if (at < limit) { 1811 ids->gaids_assoc_id[at++] = sctp_get_associd(stcb); 1812 } else { 1813 error = EINVAL; 1814 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1815 break; 1816 } 1817 } 1818 SCTP_INP_RUNLOCK(inp); 1819 ids->gaids_number_of_ids = at; 1820 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t)); 1821 } 1822 break; 1823 case SCTP_CONTEXT: 1824 { 1825 struct sctp_assoc_value *av; 1826 1827 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1828 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1829 1830 if (stcb) { 1831 av->assoc_value = stcb->asoc.context; 1832 SCTP_TCB_UNLOCK(stcb); 1833 } else { 1834 SCTP_INP_RLOCK(inp); 1835 av->assoc_value = inp->sctp_context; 1836 SCTP_INP_RUNLOCK(inp); 1837 } 1838 *optsize = sizeof(*av); 1839 } 1840 break; 1841 case SCTP_VRF_ID: 1842 { 1843 uint32_t *default_vrfid; 1844 1845 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize); 1846 *default_vrfid = inp->def_vrf_id; 1847 break; 1848 } 1849 case SCTP_GET_ASOC_VRF: 1850 { 1851 struct sctp_assoc_value *id; 1852 1853 SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize); 1854 SCTP_FIND_STCB(inp, stcb, id->assoc_id); 1855 if (stcb == NULL) { 1856 error = EINVAL; 1857 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1858 break; 1859 } 1860 id->assoc_value = stcb->asoc.vrf_id; 1861 break; 1862 } 1863 case SCTP_GET_VRF_IDS: 1864 { 1865 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1866 error = EOPNOTSUPP; 1867 break; 1868 } 1869 case SCTP_GET_NONCE_VALUES: 1870 { 1871 struct sctp_get_nonce_values *gnv; 1872 1873 SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize); 1874 SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id); 1875 1876 if (stcb) { 1877 gnv->gn_peers_tag = stcb->asoc.peer_vtag; 1878 gnv->gn_local_tag = stcb->asoc.my_vtag; 1879 SCTP_TCB_UNLOCK(stcb); 1880 } else { 1881 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1882 error = ENOTCONN; 1883 } 1884 *optsize = sizeof(*gnv); 1885 } 1886 break; 1887 case SCTP_DELAYED_SACK: 1888 { 1889 struct sctp_sack_info *sack; 1890 1891 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize); 1892 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 1893 if (stcb) { 1894 sack->sack_delay = stcb->asoc.delayed_ack; 1895 sack->sack_freq = stcb->asoc.sack_freq; 1896 SCTP_TCB_UNLOCK(stcb); 1897 } else { 1898 SCTP_INP_RLOCK(inp); 1899 sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]); 1900 sack->sack_freq = inp->sctp_ep.sctp_sack_freq; 1901 SCTP_INP_RUNLOCK(inp); 1902 } 1903 *optsize = sizeof(*sack); 1904 } 1905 break; 1906 1907 case SCTP_GET_SNDBUF_USE: 1908 { 1909 struct sctp_sockstat *ss; 1910 1911 SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize); 1912 SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id); 1913 1914 if (stcb) { 1915 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size; 1916 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue + 1917 stcb->asoc.size_on_all_streams); 1918 SCTP_TCB_UNLOCK(stcb); 1919 } else { 1920 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1921 error = ENOTCONN; 1922 } 1923 *optsize = sizeof(struct sctp_sockstat); 1924 } 1925 break; 1926 case SCTP_MAX_BURST: 1927 { 1928 uint8_t *value; 1929 1930 SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize); 1931 1932 SCTP_INP_RLOCK(inp); 1933 *value = inp->sctp_ep.max_burst; 1934 SCTP_INP_RUNLOCK(inp); 1935 *optsize = sizeof(uint8_t); 1936 } 1937 break; 1938 case SCTP_MAXSEG: 1939 { 1940 struct sctp_assoc_value *av; 1941 int ovh; 1942 1943 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1944 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1945 1946 if (stcb) { 1947 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc); 1948 SCTP_TCB_UNLOCK(stcb); 1949 } else { 1950 SCTP_INP_RLOCK(inp); 1951 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1952 ovh = SCTP_MED_OVERHEAD; 1953 } else { 1954 ovh = SCTP_MED_V4_OVERHEAD; 1955 } 1956 if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT) 1957 av->assoc_value = 0; 1958 else 1959 av->assoc_value = inp->sctp_frag_point - ovh; 1960 SCTP_INP_RUNLOCK(inp); 1961 } 1962 *optsize = sizeof(struct sctp_assoc_value); 1963 } 1964 break; 1965 case SCTP_GET_STAT_LOG: 1966 error = sctp_fill_stat_log(optval, optsize); 1967 break; 1968 case SCTP_EVENTS: 1969 { 1970 struct sctp_event_subscribe *events; 1971 1972 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize); 1973 memset(events, 0, sizeof(*events)); 1974 SCTP_INP_RLOCK(inp); 1975 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT)) 1976 events->sctp_data_io_event = 1; 1977 1978 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT)) 1979 events->sctp_association_event = 1; 1980 1981 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT)) 1982 events->sctp_address_event = 1; 1983 1984 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT)) 1985 events->sctp_send_failure_event = 1; 1986 1987 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR)) 1988 events->sctp_peer_error_event = 1; 1989 1990 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT)) 1991 events->sctp_shutdown_event = 1; 1992 1993 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT)) 1994 events->sctp_partial_delivery_event = 1; 1995 1996 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT)) 1997 events->sctp_adaptation_layer_event = 1; 1998 1999 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT)) 2000 events->sctp_authentication_event = 1; 2001 2002 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT)) 2003 events->sctp_sender_dry_event = 1; 2004 2005 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT)) 2006 events->sctp_stream_reset_events = 1; 2007 SCTP_INP_RUNLOCK(inp); 2008 *optsize = sizeof(struct sctp_event_subscribe); 2009 } 2010 break; 2011 2012 case SCTP_ADAPTATION_LAYER: 2013 { 2014 uint32_t *value; 2015 2016 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2017 2018 SCTP_INP_RLOCK(inp); 2019 *value = inp->sctp_ep.adaptation_layer_indicator; 2020 SCTP_INP_RUNLOCK(inp); 2021 *optsize = sizeof(uint32_t); 2022 } 2023 break; 2024 case SCTP_SET_INITIAL_DBG_SEQ: 2025 { 2026 uint32_t *value; 2027 2028 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2029 SCTP_INP_RLOCK(inp); 2030 *value = inp->sctp_ep.initial_sequence_debug; 2031 SCTP_INP_RUNLOCK(inp); 2032 *optsize = sizeof(uint32_t); 2033 } 2034 break; 2035 case SCTP_GET_LOCAL_ADDR_SIZE: 2036 { 2037 uint32_t *value; 2038 2039 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2040 SCTP_INP_RLOCK(inp); 2041 *value = sctp_count_max_addresses(inp); 2042 SCTP_INP_RUNLOCK(inp); 2043 *optsize = sizeof(uint32_t); 2044 } 2045 break; 2046 case SCTP_GET_REMOTE_ADDR_SIZE: 2047 { 2048 uint32_t *value; 2049 size_t size; 2050 struct sctp_nets *net; 2051 2052 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2053 /* FIXME MT: change to sctp_assoc_value? */ 2054 SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value); 2055 2056 if (stcb) { 2057 size = 0; 2058 /* Count the sizes */ 2059 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2060 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) || 2061 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 2062 size += sizeof(struct sockaddr_in6); 2063 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 2064 size += sizeof(struct sockaddr_in); 2065 } else { 2066 /* huh */ 2067 break; 2068 } 2069 } 2070 SCTP_TCB_UNLOCK(stcb); 2071 *value = (uint32_t) size; 2072 } else { 2073 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2074 error = ENOTCONN; 2075 } 2076 *optsize = sizeof(uint32_t); 2077 } 2078 break; 2079 case SCTP_GET_PEER_ADDRESSES: 2080 /* 2081 * Get the address information, an array is passed in to 2082 * fill up we pack it. 2083 */ 2084 { 2085 size_t cpsz, left; 2086 struct sockaddr_storage *sas; 2087 struct sctp_nets *net; 2088 struct sctp_getaddresses *saddr; 2089 2090 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2091 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2092 2093 if (stcb) { 2094 left = (*optsize) - sizeof(struct sctp_getaddresses); 2095 *optsize = sizeof(struct sctp_getaddresses); 2096 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2097 2098 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2099 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) || 2100 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 2101 cpsz = sizeof(struct sockaddr_in6); 2102 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 2103 cpsz = sizeof(struct sockaddr_in); 2104 } else { 2105 /* huh */ 2106 break; 2107 } 2108 if (left < cpsz) { 2109 /* not enough room. */ 2110 break; 2111 } 2112 #ifdef INET6 2113 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) && 2114 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) { 2115 /* Must map the address */ 2116 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr, 2117 (struct sockaddr_in6 *)sas); 2118 } else { 2119 #endif 2120 memcpy(sas, &net->ro._l_addr, cpsz); 2121 #ifdef INET6 2122 } 2123 #endif 2124 ((struct sockaddr_in *)sas)->sin_port = stcb->rport; 2125 2126 sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz); 2127 left -= cpsz; 2128 *optsize += cpsz; 2129 } 2130 SCTP_TCB_UNLOCK(stcb); 2131 } else { 2132 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2133 error = ENOENT; 2134 } 2135 } 2136 break; 2137 case SCTP_GET_LOCAL_ADDRESSES: 2138 { 2139 size_t limit, actual; 2140 struct sockaddr_storage *sas; 2141 struct sctp_getaddresses *saddr; 2142 2143 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2144 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2145 2146 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2147 limit = *optsize - sizeof(sctp_assoc_t); 2148 actual = sctp_fill_up_addresses(inp, stcb, limit, sas); 2149 if (stcb) { 2150 SCTP_TCB_UNLOCK(stcb); 2151 } 2152 *optsize = sizeof(struct sockaddr_storage) + actual; 2153 } 2154 break; 2155 case SCTP_PEER_ADDR_PARAMS: 2156 { 2157 struct sctp_paddrparams *paddrp; 2158 struct sctp_nets *net; 2159 2160 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize); 2161 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 2162 2163 net = NULL; 2164 if (stcb) { 2165 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 2166 } else { 2167 /* 2168 * We increment here since 2169 * sctp_findassociation_ep_addr() wil do a 2170 * decrement if it finds the stcb as long as 2171 * the locked tcb (last argument) is NOT a 2172 * TCB.. aka NULL. 2173 */ 2174 SCTP_INP_INCR_REF(inp); 2175 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL); 2176 if (stcb == NULL) { 2177 SCTP_INP_DECR_REF(inp); 2178 } 2179 } 2180 if (stcb && (net == NULL)) { 2181 struct sockaddr *sa; 2182 2183 sa = (struct sockaddr *)&paddrp->spp_address; 2184 if (sa->sa_family == AF_INET) { 2185 struct sockaddr_in *sin; 2186 2187 sin = (struct sockaddr_in *)sa; 2188 if (sin->sin_addr.s_addr) { 2189 error = EINVAL; 2190 SCTP_TCB_UNLOCK(stcb); 2191 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2192 break; 2193 } 2194 } else if (sa->sa_family == AF_INET6) { 2195 struct sockaddr_in6 *sin6; 2196 2197 sin6 = (struct sockaddr_in6 *)sa; 2198 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 2199 error = EINVAL; 2200 SCTP_TCB_UNLOCK(stcb); 2201 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2202 break; 2203 } 2204 } else { 2205 error = EAFNOSUPPORT; 2206 SCTP_TCB_UNLOCK(stcb); 2207 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2208 break; 2209 } 2210 } 2211 if (stcb) { 2212 /* Applys to the specific association */ 2213 paddrp->spp_flags = 0; 2214 if (net) { 2215 int ovh; 2216 2217 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2218 ovh = SCTP_MED_OVERHEAD; 2219 } else { 2220 ovh = SCTP_MED_V4_OVERHEAD; 2221 } 2222 2223 2224 paddrp->spp_pathmaxrxt = net->failure_threshold; 2225 paddrp->spp_pathmtu = net->mtu - ovh; 2226 /* get flags for HB */ 2227 if (net->dest_state & SCTP_ADDR_NOHB) 2228 paddrp->spp_flags |= SPP_HB_DISABLE; 2229 else 2230 paddrp->spp_flags |= SPP_HB_ENABLE; 2231 /* get flags for PMTU */ 2232 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2233 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2234 } else { 2235 paddrp->spp_flags |= SPP_PMTUD_DISABLE; 2236 } 2237 #ifdef INET 2238 if (net->ro._l_addr.sin.sin_family == AF_INET) { 2239 paddrp->spp_ipv4_tos = net->tos_flowlabel & 0x000000fc; 2240 paddrp->spp_flags |= SPP_IPV4_TOS; 2241 } 2242 #endif 2243 #ifdef INET6 2244 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 2245 paddrp->spp_ipv6_flowlabel = net->tos_flowlabel; 2246 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2247 } 2248 #endif 2249 } else { 2250 /* 2251 * No destination so return default 2252 * value 2253 */ 2254 int cnt = 0; 2255 2256 paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure; 2257 paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc); 2258 #ifdef INET 2259 paddrp->spp_ipv4_tos = stcb->asoc.default_tos & 0x000000fc; 2260 paddrp->spp_flags |= SPP_IPV4_TOS; 2261 #endif 2262 #ifdef INET6 2263 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel; 2264 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2265 #endif 2266 /* default settings should be these */ 2267 if (stcb->asoc.hb_is_disabled == 0) { 2268 paddrp->spp_flags |= SPP_HB_ENABLE; 2269 } else { 2270 paddrp->spp_flags |= SPP_HB_DISABLE; 2271 } 2272 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2273 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2274 cnt++; 2275 } 2276 } 2277 if (cnt) { 2278 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2279 } 2280 } 2281 paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay; 2282 paddrp->spp_assoc_id = sctp_get_associd(stcb); 2283 SCTP_TCB_UNLOCK(stcb); 2284 } else { 2285 /* Use endpoint defaults */ 2286 SCTP_INP_RLOCK(inp); 2287 paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure; 2288 paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]); 2289 paddrp->spp_assoc_id = (sctp_assoc_t) 0; 2290 /* get inp's default */ 2291 #ifdef INET 2292 paddrp->spp_ipv4_tos = inp->ip_inp.inp.inp_ip_tos; 2293 paddrp->spp_flags |= SPP_IPV4_TOS; 2294 #endif 2295 #ifdef INET6 2296 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2297 paddrp->spp_ipv6_flowlabel = ((struct in6pcb *)inp)->in6p_flowinfo; 2298 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2299 } 2300 #endif 2301 /* can't return this */ 2302 paddrp->spp_pathmtu = 0; 2303 2304 /* default behavior, no stcb */ 2305 paddrp->spp_flags = SPP_PMTUD_ENABLE; 2306 2307 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) { 2308 paddrp->spp_flags |= SPP_HB_ENABLE; 2309 } else { 2310 paddrp->spp_flags |= SPP_HB_DISABLE; 2311 } 2312 SCTP_INP_RUNLOCK(inp); 2313 } 2314 *optsize = sizeof(struct sctp_paddrparams); 2315 } 2316 break; 2317 case SCTP_GET_PEER_ADDR_INFO: 2318 { 2319 struct sctp_paddrinfo *paddri; 2320 struct sctp_nets *net; 2321 2322 SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize); 2323 SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id); 2324 2325 net = NULL; 2326 if (stcb) { 2327 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address); 2328 } else { 2329 /* 2330 * We increment here since 2331 * sctp_findassociation_ep_addr() wil do a 2332 * decrement if it finds the stcb as long as 2333 * the locked tcb (last argument) is NOT a 2334 * TCB.. aka NULL. 2335 */ 2336 SCTP_INP_INCR_REF(inp); 2337 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL); 2338 if (stcb == NULL) { 2339 SCTP_INP_DECR_REF(inp); 2340 } 2341 } 2342 2343 if ((stcb) && (net)) { 2344 paddri->spinfo_state = net->dest_state & (SCTP_REACHABLE_MASK | SCTP_ADDR_NOHB); 2345 paddri->spinfo_cwnd = net->cwnd; 2346 paddri->spinfo_srtt = ((net->lastsa >> 2) + net->lastsv) >> 1; 2347 paddri->spinfo_rto = net->RTO; 2348 paddri->spinfo_assoc_id = sctp_get_associd(stcb); 2349 SCTP_TCB_UNLOCK(stcb); 2350 } else { 2351 if (stcb) { 2352 SCTP_TCB_UNLOCK(stcb); 2353 } 2354 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2355 error = ENOENT; 2356 } 2357 *optsize = sizeof(struct sctp_paddrinfo); 2358 } 2359 break; 2360 case SCTP_PCB_STATUS: 2361 { 2362 struct sctp_pcbinfo *spcb; 2363 2364 SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize); 2365 sctp_fill_pcbinfo(spcb); 2366 *optsize = sizeof(struct sctp_pcbinfo); 2367 } 2368 break; 2369 2370 case SCTP_STATUS: 2371 { 2372 struct sctp_nets *net; 2373 struct sctp_status *sstat; 2374 2375 SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize); 2376 SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id); 2377 2378 if (stcb == NULL) { 2379 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2380 error = EINVAL; 2381 break; 2382 } 2383 /* 2384 * I think passing the state is fine since 2385 * sctp_constants.h will be available to the user 2386 * land. 2387 */ 2388 sstat->sstat_state = stcb->asoc.state; 2389 sstat->sstat_assoc_id = sctp_get_associd(stcb); 2390 sstat->sstat_rwnd = stcb->asoc.peers_rwnd; 2391 sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt; 2392 /* 2393 * We can't include chunks that have been passed to 2394 * the socket layer. Only things in queue. 2395 */ 2396 sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue + 2397 stcb->asoc.cnt_on_all_streams); 2398 2399 2400 sstat->sstat_instrms = stcb->asoc.streamincnt; 2401 sstat->sstat_outstrms = stcb->asoc.streamoutcnt; 2402 sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc); 2403 memcpy(&sstat->sstat_primary.spinfo_address, 2404 &stcb->asoc.primary_destination->ro._l_addr, 2405 ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len); 2406 net = stcb->asoc.primary_destination; 2407 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport; 2408 /* 2409 * Again the user can get info from sctp_constants.h 2410 * for what the state of the network is. 2411 */ 2412 sstat->sstat_primary.spinfo_state = net->dest_state & SCTP_REACHABLE_MASK; 2413 sstat->sstat_primary.spinfo_cwnd = net->cwnd; 2414 sstat->sstat_primary.spinfo_srtt = net->lastsa; 2415 sstat->sstat_primary.spinfo_rto = net->RTO; 2416 sstat->sstat_primary.spinfo_mtu = net->mtu; 2417 sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb); 2418 SCTP_TCB_UNLOCK(stcb); 2419 *optsize = sizeof(*sstat); 2420 } 2421 break; 2422 case SCTP_RTOINFO: 2423 { 2424 struct sctp_rtoinfo *srto; 2425 2426 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize); 2427 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 2428 2429 if (stcb) { 2430 srto->srto_initial = stcb->asoc.initial_rto; 2431 srto->srto_max = stcb->asoc.maxrto; 2432 srto->srto_min = stcb->asoc.minrto; 2433 SCTP_TCB_UNLOCK(stcb); 2434 } else { 2435 SCTP_INP_RLOCK(inp); 2436 srto->srto_initial = inp->sctp_ep.initial_rto; 2437 srto->srto_max = inp->sctp_ep.sctp_maxrto; 2438 srto->srto_min = inp->sctp_ep.sctp_minrto; 2439 SCTP_INP_RUNLOCK(inp); 2440 } 2441 *optsize = sizeof(*srto); 2442 } 2443 break; 2444 case SCTP_ASSOCINFO: 2445 { 2446 struct sctp_assocparams *sasoc; 2447 uint32_t oldval; 2448 2449 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize); 2450 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 2451 2452 if (stcb) { 2453 oldval = sasoc->sasoc_cookie_life; 2454 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life); 2455 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times; 2456 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 2457 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd; 2458 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd; 2459 SCTP_TCB_UNLOCK(stcb); 2460 } else { 2461 SCTP_INP_RLOCK(inp); 2462 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life); 2463 sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times; 2464 sasoc->sasoc_number_peer_destinations = 0; 2465 sasoc->sasoc_peer_rwnd = 0; 2466 sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv); 2467 SCTP_INP_RUNLOCK(inp); 2468 } 2469 *optsize = sizeof(*sasoc); 2470 } 2471 break; 2472 case SCTP_DEFAULT_SEND_PARAM: 2473 { 2474 struct sctp_sndrcvinfo *s_info; 2475 2476 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize); 2477 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 2478 2479 if (stcb) { 2480 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send)); 2481 SCTP_TCB_UNLOCK(stcb); 2482 } else { 2483 SCTP_INP_RLOCK(inp); 2484 memcpy(s_info, &inp->def_send, sizeof(inp->def_send)); 2485 SCTP_INP_RUNLOCK(inp); 2486 } 2487 *optsize = sizeof(*s_info); 2488 } 2489 break; 2490 case SCTP_INITMSG: 2491 { 2492 struct sctp_initmsg *sinit; 2493 2494 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize); 2495 SCTP_INP_RLOCK(inp); 2496 sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count; 2497 sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome; 2498 sinit->sinit_max_attempts = inp->sctp_ep.max_init_times; 2499 sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max; 2500 SCTP_INP_RUNLOCK(inp); 2501 *optsize = sizeof(*sinit); 2502 } 2503 break; 2504 case SCTP_PRIMARY_ADDR: 2505 /* we allow a "get" operation on this */ 2506 { 2507 struct sctp_setprim *ssp; 2508 2509 SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize); 2510 SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id); 2511 2512 if (stcb) { 2513 /* simply copy out the sockaddr_storage... */ 2514 int len; 2515 2516 len = *optsize; 2517 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len) 2518 len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len; 2519 2520 memcpy(&ssp->ssp_addr, 2521 &stcb->asoc.primary_destination->ro._l_addr, 2522 len); 2523 SCTP_TCB_UNLOCK(stcb); 2524 } else { 2525 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2526 error = EINVAL; 2527 } 2528 *optsize = sizeof(*ssp); 2529 } 2530 break; 2531 2532 case SCTP_HMAC_IDENT: 2533 { 2534 struct sctp_hmacalgo *shmac; 2535 sctp_hmaclist_t *hmaclist; 2536 uint32_t size; 2537 int i; 2538 2539 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize); 2540 2541 SCTP_INP_RLOCK(inp); 2542 hmaclist = inp->sctp_ep.local_hmacs; 2543 if (hmaclist == NULL) { 2544 /* no HMACs to return */ 2545 *optsize = sizeof(*shmac); 2546 SCTP_INP_RUNLOCK(inp); 2547 break; 2548 } 2549 /* is there room for all of the hmac ids? */ 2550 size = sizeof(*shmac) + (hmaclist->num_algo * 2551 sizeof(shmac->shmac_idents[0])); 2552 if ((size_t)(*optsize) < size) { 2553 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2554 error = EINVAL; 2555 SCTP_INP_RUNLOCK(inp); 2556 break; 2557 } 2558 /* copy in the list */ 2559 shmac->shmac_number_of_idents = hmaclist->num_algo; 2560 for (i = 0; i < hmaclist->num_algo; i++) { 2561 shmac->shmac_idents[i] = hmaclist->hmac[i]; 2562 } 2563 SCTP_INP_RUNLOCK(inp); 2564 *optsize = size; 2565 break; 2566 } 2567 case SCTP_AUTH_ACTIVE_KEY: 2568 { 2569 struct sctp_authkeyid *scact; 2570 2571 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize); 2572 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 2573 2574 if (stcb) { 2575 /* get the active key on the assoc */ 2576 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid; 2577 SCTP_TCB_UNLOCK(stcb); 2578 } else { 2579 /* get the endpoint active key */ 2580 SCTP_INP_RLOCK(inp); 2581 scact->scact_keynumber = inp->sctp_ep.default_keyid; 2582 SCTP_INP_RUNLOCK(inp); 2583 } 2584 *optsize = sizeof(*scact); 2585 break; 2586 } 2587 case SCTP_LOCAL_AUTH_CHUNKS: 2588 { 2589 struct sctp_authchunks *sac; 2590 sctp_auth_chklist_t *chklist = NULL; 2591 size_t size = 0; 2592 2593 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2594 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2595 2596 if (stcb) { 2597 /* get off the assoc */ 2598 chklist = stcb->asoc.local_auth_chunks; 2599 /* is there enough space? */ 2600 size = sctp_auth_get_chklist_size(chklist); 2601 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2602 error = EINVAL; 2603 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2604 } else { 2605 /* copy in the chunks */ 2606 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2607 } 2608 SCTP_TCB_UNLOCK(stcb); 2609 } else { 2610 /* get off the endpoint */ 2611 SCTP_INP_RLOCK(inp); 2612 chklist = inp->sctp_ep.local_auth_chunks; 2613 /* is there enough space? */ 2614 size = sctp_auth_get_chklist_size(chklist); 2615 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2616 error = EINVAL; 2617 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2618 } else { 2619 /* copy in the chunks */ 2620 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2621 } 2622 SCTP_INP_RUNLOCK(inp); 2623 } 2624 *optsize = sizeof(struct sctp_authchunks) + size; 2625 break; 2626 } 2627 case SCTP_PEER_AUTH_CHUNKS: 2628 { 2629 struct sctp_authchunks *sac; 2630 sctp_auth_chklist_t *chklist = NULL; 2631 size_t size = 0; 2632 2633 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2634 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2635 2636 if (stcb) { 2637 /* get off the assoc */ 2638 chklist = stcb->asoc.peer_auth_chunks; 2639 /* is there enough space? */ 2640 size = sctp_auth_get_chklist_size(chklist); 2641 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2642 error = EINVAL; 2643 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2644 } else { 2645 /* copy in the chunks */ 2646 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2647 } 2648 SCTP_TCB_UNLOCK(stcb); 2649 } else { 2650 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2651 error = ENOENT; 2652 } 2653 *optsize = sizeof(struct sctp_authchunks) + size; 2654 break; 2655 } 2656 2657 2658 default: 2659 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 2660 error = ENOPROTOOPT; 2661 *optsize = 0; 2662 break; 2663 } /* end switch (sopt->sopt_name) */ 2664 return (error); 2665 } 2666 2667 static int 2668 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize, 2669 void *p) 2670 { 2671 int error, set_opt; 2672 uint32_t *mopt; 2673 struct sctp_tcb *stcb = NULL; 2674 struct sctp_inpcb *inp = NULL; 2675 uint32_t vrf_id; 2676 2677 if (optval == NULL) { 2678 SCTP_PRINTF("optval is NULL\n"); 2679 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2680 return (EINVAL); 2681 } 2682 inp = (struct sctp_inpcb *)so->so_pcb; 2683 if (inp == 0) { 2684 SCTP_PRINTF("inp is NULL?\n"); 2685 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2686 return EINVAL; 2687 } 2688 vrf_id = inp->def_vrf_id; 2689 2690 error = 0; 2691 switch (optname) { 2692 case SCTP_NODELAY: 2693 case SCTP_AUTOCLOSE: 2694 case SCTP_AUTO_ASCONF: 2695 case SCTP_EXPLICIT_EOR: 2696 case SCTP_DISABLE_FRAGMENTS: 2697 case SCTP_USE_EXT_RCVINFO: 2698 case SCTP_I_WANT_MAPPED_V4_ADDR: 2699 /* copy in the option value */ 2700 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 2701 set_opt = 0; 2702 if (error) 2703 break; 2704 switch (optname) { 2705 case SCTP_DISABLE_FRAGMENTS: 2706 set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT; 2707 break; 2708 case SCTP_AUTO_ASCONF: 2709 /* 2710 * NOTE: we don't really support this flag 2711 */ 2712 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 2713 /* only valid for bound all sockets */ 2714 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF; 2715 } else { 2716 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2717 return (EINVAL); 2718 } 2719 break; 2720 case SCTP_EXPLICIT_EOR: 2721 set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR; 2722 break; 2723 case SCTP_USE_EXT_RCVINFO: 2724 set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO; 2725 break; 2726 case SCTP_I_WANT_MAPPED_V4_ADDR: 2727 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2728 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4; 2729 } else { 2730 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2731 return (EINVAL); 2732 } 2733 break; 2734 case SCTP_NODELAY: 2735 set_opt = SCTP_PCB_FLAGS_NODELAY; 2736 break; 2737 case SCTP_AUTOCLOSE: 2738 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2739 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 2740 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2741 return (EINVAL); 2742 } 2743 set_opt = SCTP_PCB_FLAGS_AUTOCLOSE; 2744 /* 2745 * The value is in ticks. Note this does not effect 2746 * old associations, only new ones. 2747 */ 2748 inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt); 2749 break; 2750 } 2751 SCTP_INP_WLOCK(inp); 2752 if (*mopt != 0) { 2753 sctp_feature_on(inp, set_opt); 2754 } else { 2755 sctp_feature_off(inp, set_opt); 2756 } 2757 SCTP_INP_WUNLOCK(inp); 2758 break; 2759 case SCTP_REUSE_PORT: 2760 { 2761 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 2762 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) { 2763 /* Can't set it after we are bound */ 2764 error = EINVAL; 2765 break; 2766 } 2767 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) { 2768 /* Can't do this for a 1-m socket */ 2769 error = EINVAL; 2770 break; 2771 } 2772 if (optval) 2773 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE); 2774 else 2775 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE); 2776 } 2777 break; 2778 case SCTP_PARTIAL_DELIVERY_POINT: 2779 { 2780 uint32_t *value; 2781 2782 SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize); 2783 if (*value > SCTP_SB_LIMIT_RCV(so)) { 2784 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2785 error = EINVAL; 2786 break; 2787 } 2788 inp->partial_delivery_point = *value; 2789 } 2790 break; 2791 case SCTP_FRAGMENT_INTERLEAVE: 2792 /* not yet until we re-write sctp_recvmsg() */ 2793 { 2794 uint32_t *level; 2795 2796 SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize); 2797 if (*level == SCTP_FRAG_LEVEL_2) { 2798 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2799 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2800 } else if (*level == SCTP_FRAG_LEVEL_1) { 2801 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2802 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2803 } else if (*level == SCTP_FRAG_LEVEL_0) { 2804 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2805 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2806 2807 } else { 2808 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2809 error = EINVAL; 2810 } 2811 } 2812 break; 2813 case SCTP_CMT_ON_OFF: 2814 { 2815 struct sctp_assoc_value *av; 2816 2817 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2818 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) { 2819 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2820 if (stcb) { 2821 stcb->asoc.sctp_cmt_on_off = (uint8_t) av->assoc_value; 2822 SCTP_TCB_UNLOCK(stcb); 2823 } else { 2824 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2825 error = ENOTCONN; 2826 } 2827 } else { 2828 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 2829 error = ENOPROTOOPT; 2830 } 2831 } 2832 break; 2833 /* EY nr_sack_on_off socket option */ 2834 case SCTP_NR_SACK_ON_OFF: 2835 { 2836 struct sctp_assoc_value *av; 2837 2838 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2839 if (SCTP_BASE_SYSCTL(sctp_nr_sack_on_off)) { 2840 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2841 if (stcb) { 2842 stcb->asoc.sctp_nr_sack_on_off = (uint8_t) av->assoc_value; 2843 SCTP_TCB_UNLOCK(stcb); 2844 } else { 2845 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2846 error = ENOTCONN; 2847 } 2848 } else { 2849 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 2850 error = ENOPROTOOPT; 2851 } 2852 } 2853 break; 2854 /* JRS - Set socket option for pluggable congestion control */ 2855 case SCTP_PLUGGABLE_CC: 2856 { 2857 struct sctp_assoc_value *av; 2858 2859 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2860 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2861 if (stcb) { 2862 switch (av->assoc_value) { 2863 /* 2864 * JRS - Standard TCP congestion 2865 * control 2866 */ 2867 case SCTP_CC_RFC2581: 2868 { 2869 stcb->asoc.congestion_control_module = SCTP_CC_RFC2581; 2870 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; 2871 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_cwnd_update_after_sack; 2872 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_cwnd_update_after_fr; 2873 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; 2874 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; 2875 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2876 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2877 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; 2878 SCTP_TCB_UNLOCK(stcb); 2879 break; 2880 } 2881 /* 2882 * JRS - High Speed TCP congestion 2883 * control (Floyd) 2884 */ 2885 case SCTP_CC_HSTCP: 2886 { 2887 stcb->asoc.congestion_control_module = SCTP_CC_HSTCP; 2888 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; 2889 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_hs_cwnd_update_after_sack; 2890 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_hs_cwnd_update_after_fr; 2891 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; 2892 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; 2893 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2894 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2895 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; 2896 SCTP_TCB_UNLOCK(stcb); 2897 break; 2898 } 2899 /* JRS - HTCP congestion control */ 2900 case SCTP_CC_HTCP: 2901 { 2902 stcb->asoc.congestion_control_module = SCTP_CC_HTCP; 2903 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_htcp_set_initial_cc_param; 2904 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_htcp_cwnd_update_after_sack; 2905 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_htcp_cwnd_update_after_fr; 2906 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_htcp_cwnd_update_after_timeout; 2907 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_htcp_cwnd_update_after_ecn_echo; 2908 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2909 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2910 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_htcp_cwnd_update_after_fr_timer; 2911 SCTP_TCB_UNLOCK(stcb); 2912 break; 2913 } 2914 /* 2915 * JRS - All other values are 2916 * invalid 2917 */ 2918 default: 2919 { 2920 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2921 error = EINVAL; 2922 SCTP_TCB_UNLOCK(stcb); 2923 break; 2924 } 2925 } 2926 } else { 2927 switch (av->assoc_value) { 2928 case SCTP_CC_RFC2581: 2929 case SCTP_CC_HSTCP: 2930 case SCTP_CC_HTCP: 2931 inp->sctp_ep.sctp_default_cc_module = av->assoc_value; 2932 break; 2933 default: 2934 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2935 error = EINVAL; 2936 break; 2937 }; 2938 } 2939 } 2940 break; 2941 case SCTP_CLR_STAT_LOG: 2942 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2943 error = EOPNOTSUPP; 2944 break; 2945 case SCTP_CONTEXT: 2946 { 2947 struct sctp_assoc_value *av; 2948 2949 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2950 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2951 2952 if (stcb) { 2953 stcb->asoc.context = av->assoc_value; 2954 SCTP_TCB_UNLOCK(stcb); 2955 } else { 2956 SCTP_INP_WLOCK(inp); 2957 inp->sctp_context = av->assoc_value; 2958 SCTP_INP_WUNLOCK(inp); 2959 } 2960 } 2961 break; 2962 case SCTP_VRF_ID: 2963 { 2964 uint32_t *default_vrfid; 2965 2966 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize); 2967 if (*default_vrfid > SCTP_MAX_VRF_ID) { 2968 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2969 error = EINVAL; 2970 break; 2971 } 2972 inp->def_vrf_id = *default_vrfid; 2973 break; 2974 } 2975 case SCTP_DEL_VRF_ID: 2976 { 2977 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2978 error = EOPNOTSUPP; 2979 break; 2980 } 2981 case SCTP_ADD_VRF_ID: 2982 { 2983 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2984 error = EOPNOTSUPP; 2985 break; 2986 } 2987 case SCTP_DELAYED_SACK: 2988 { 2989 struct sctp_sack_info *sack; 2990 2991 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize); 2992 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 2993 if (sack->sack_delay) { 2994 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) 2995 sack->sack_delay = SCTP_MAX_SACK_DELAY; 2996 } 2997 if (stcb) { 2998 if (sack->sack_delay) { 2999 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 3000 sack->sack_delay = TICKS_TO_MSEC(1); 3001 } 3002 stcb->asoc.delayed_ack = sack->sack_delay; 3003 } 3004 if (sack->sack_freq) { 3005 stcb->asoc.sack_freq = sack->sack_freq; 3006 } 3007 SCTP_TCB_UNLOCK(stcb); 3008 } else { 3009 SCTP_INP_WLOCK(inp); 3010 if (sack->sack_delay) { 3011 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 3012 sack->sack_delay = TICKS_TO_MSEC(1); 3013 } 3014 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay); 3015 } 3016 if (sack->sack_freq) { 3017 inp->sctp_ep.sctp_sack_freq = sack->sack_freq; 3018 } 3019 SCTP_INP_WUNLOCK(inp); 3020 } 3021 break; 3022 } 3023 case SCTP_AUTH_CHUNK: 3024 { 3025 struct sctp_authchunk *sauth; 3026 3027 SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize); 3028 3029 SCTP_INP_WLOCK(inp); 3030 if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) { 3031 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3032 error = EINVAL; 3033 } 3034 SCTP_INP_WUNLOCK(inp); 3035 break; 3036 } 3037 case SCTP_AUTH_KEY: 3038 { 3039 struct sctp_authkey *sca; 3040 struct sctp_keyhead *shared_keys; 3041 sctp_sharedkey_t *shared_key; 3042 sctp_key_t *key = NULL; 3043 size_t size; 3044 3045 SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize); 3046 SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id); 3047 size = optsize - sizeof(*sca); 3048 3049 if (stcb) { 3050 /* set it on the assoc */ 3051 shared_keys = &stcb->asoc.shared_keys; 3052 /* clear the cached keys for this key id */ 3053 sctp_clear_cachedkeys(stcb, sca->sca_keynumber); 3054 /* 3055 * create the new shared key and 3056 * insert/replace it 3057 */ 3058 if (size > 0) { 3059 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3060 if (key == NULL) { 3061 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3062 error = ENOMEM; 3063 SCTP_TCB_UNLOCK(stcb); 3064 break; 3065 } 3066 } 3067 shared_key = sctp_alloc_sharedkey(); 3068 if (shared_key == NULL) { 3069 sctp_free_key(key); 3070 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3071 error = ENOMEM; 3072 SCTP_TCB_UNLOCK(stcb); 3073 break; 3074 } 3075 shared_key->key = key; 3076 shared_key->keyid = sca->sca_keynumber; 3077 error = sctp_insert_sharedkey(shared_keys, shared_key); 3078 SCTP_TCB_UNLOCK(stcb); 3079 } else { 3080 /* set it on the endpoint */ 3081 SCTP_INP_WLOCK(inp); 3082 shared_keys = &inp->sctp_ep.shared_keys; 3083 /* 3084 * clear the cached keys on all assocs for 3085 * this key id 3086 */ 3087 sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber); 3088 /* 3089 * create the new shared key and 3090 * insert/replace it 3091 */ 3092 if (size > 0) { 3093 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3094 if (key == NULL) { 3095 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3096 error = ENOMEM; 3097 SCTP_INP_WUNLOCK(inp); 3098 break; 3099 } 3100 } 3101 shared_key = sctp_alloc_sharedkey(); 3102 if (shared_key == NULL) { 3103 sctp_free_key(key); 3104 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3105 error = ENOMEM; 3106 SCTP_INP_WUNLOCK(inp); 3107 break; 3108 } 3109 shared_key->key = key; 3110 shared_key->keyid = sca->sca_keynumber; 3111 error = sctp_insert_sharedkey(shared_keys, shared_key); 3112 SCTP_INP_WUNLOCK(inp); 3113 } 3114 break; 3115 } 3116 case SCTP_HMAC_IDENT: 3117 { 3118 struct sctp_hmacalgo *shmac; 3119 sctp_hmaclist_t *hmaclist; 3120 uint16_t hmacid; 3121 uint32_t i; 3122 3123 size_t found; 3124 3125 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize); 3126 if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) { 3127 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3128 error = EINVAL; 3129 break; 3130 } 3131 hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents); 3132 if (hmaclist == NULL) { 3133 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3134 error = ENOMEM; 3135 break; 3136 } 3137 for (i = 0; i < shmac->shmac_number_of_idents; i++) { 3138 hmacid = shmac->shmac_idents[i]; 3139 if (sctp_auth_add_hmacid(hmaclist, hmacid)) { 3140 /* invalid HMACs were found */ ; 3141 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3142 error = EINVAL; 3143 sctp_free_hmaclist(hmaclist); 3144 goto sctp_set_hmac_done; 3145 } 3146 } 3147 found = 0; 3148 for (i = 0; i < hmaclist->num_algo; i++) { 3149 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) { 3150 /* already in list */ 3151 found = 1; 3152 } 3153 } 3154 if (!found) { 3155 sctp_free_hmaclist(hmaclist); 3156 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3157 error = EINVAL; 3158 break; 3159 } 3160 /* set it on the endpoint */ 3161 SCTP_INP_WLOCK(inp); 3162 if (inp->sctp_ep.local_hmacs) 3163 sctp_free_hmaclist(inp->sctp_ep.local_hmacs); 3164 inp->sctp_ep.local_hmacs = hmaclist; 3165 SCTP_INP_WUNLOCK(inp); 3166 sctp_set_hmac_done: 3167 break; 3168 } 3169 case SCTP_AUTH_ACTIVE_KEY: 3170 { 3171 struct sctp_authkeyid *scact; 3172 3173 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, 3174 optsize); 3175 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 3176 3177 /* set the active key on the right place */ 3178 if (stcb) { 3179 /* set the active key on the assoc */ 3180 if (sctp_auth_setactivekey(stcb, 3181 scact->scact_keynumber)) { 3182 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3183 SCTP_FROM_SCTP_USRREQ, 3184 EINVAL); 3185 error = EINVAL; 3186 } 3187 SCTP_TCB_UNLOCK(stcb); 3188 } else { 3189 /* set the active key on the endpoint */ 3190 SCTP_INP_WLOCK(inp); 3191 if (sctp_auth_setactivekey_ep(inp, 3192 scact->scact_keynumber)) { 3193 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3194 SCTP_FROM_SCTP_USRREQ, 3195 EINVAL); 3196 error = EINVAL; 3197 } 3198 SCTP_INP_WUNLOCK(inp); 3199 } 3200 break; 3201 } 3202 case SCTP_AUTH_DELETE_KEY: 3203 { 3204 struct sctp_authkeyid *scdel; 3205 3206 SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, 3207 optsize); 3208 SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id); 3209 3210 /* delete the key from the right place */ 3211 if (stcb) { 3212 if (sctp_delete_sharedkey(stcb, 3213 scdel->scact_keynumber)) { 3214 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3215 SCTP_FROM_SCTP_USRREQ, 3216 EINVAL); 3217 error = EINVAL; 3218 } 3219 SCTP_TCB_UNLOCK(stcb); 3220 } else { 3221 SCTP_INP_WLOCK(inp); 3222 if (sctp_delete_sharedkey_ep(inp, 3223 scdel->scact_keynumber)) { 3224 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3225 SCTP_FROM_SCTP_USRREQ, 3226 EINVAL); 3227 error = EINVAL; 3228 } 3229 SCTP_INP_WUNLOCK(inp); 3230 } 3231 break; 3232 } 3233 case SCTP_AUTH_DEACTIVATE_KEY: 3234 { 3235 struct sctp_authkeyid *keyid; 3236 3237 SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, 3238 optsize); 3239 SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id); 3240 3241 /* deactivate the key from the right place */ 3242 if (stcb) { 3243 if (sctp_deact_sharedkey(stcb, 3244 keyid->scact_keynumber)) { 3245 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3246 SCTP_FROM_SCTP_USRREQ, 3247 EINVAL); 3248 error = EINVAL; 3249 } 3250 SCTP_TCB_UNLOCK(stcb); 3251 } else { 3252 SCTP_INP_WLOCK(inp); 3253 if (sctp_deact_sharedkey_ep(inp, 3254 keyid->scact_keynumber)) { 3255 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3256 SCTP_FROM_SCTP_USRREQ, 3257 EINVAL); 3258 error = EINVAL; 3259 } 3260 SCTP_INP_WUNLOCK(inp); 3261 } 3262 break; 3263 } 3264 3265 case SCTP_RESET_STREAMS: 3266 { 3267 struct sctp_stream_reset *strrst; 3268 uint8_t send_in = 0, send_tsn = 0, send_out = 0, 3269 addstream = 0; 3270 uint16_t addstrmcnt = 0; 3271 int i; 3272 3273 SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize); 3274 SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id); 3275 3276 if (stcb == NULL) { 3277 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 3278 error = ENOENT; 3279 break; 3280 } 3281 if (stcb->asoc.peer_supports_strreset == 0) { 3282 /* 3283 * Peer does not support it, we return 3284 * protocol not supported since this is true 3285 * for this feature and this peer, not the 3286 * socket request in general. 3287 */ 3288 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT); 3289 error = EPROTONOSUPPORT; 3290 SCTP_TCB_UNLOCK(stcb); 3291 break; 3292 } 3293 if (stcb->asoc.stream_reset_outstanding) { 3294 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 3295 error = EALREADY; 3296 SCTP_TCB_UNLOCK(stcb); 3297 break; 3298 } 3299 if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) { 3300 send_in = 1; 3301 } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) { 3302 send_out = 1; 3303 } else if (strrst->strrst_flags == SCTP_RESET_BOTH) { 3304 send_in = 1; 3305 send_out = 1; 3306 } else if (strrst->strrst_flags == SCTP_RESET_TSN) { 3307 send_tsn = 1; 3308 } else if (strrst->strrst_flags == SCTP_RESET_ADD_STREAMS) { 3309 if (send_tsn || 3310 send_in || 3311 send_out) { 3312 /* We can't do that and add streams */ 3313 error = EINVAL; 3314 goto skip_stuff; 3315 } 3316 if (stcb->asoc.stream_reset_outstanding) { 3317 error = EBUSY; 3318 goto skip_stuff; 3319 } 3320 addstream = 1; 3321 /* We allocate here */ 3322 addstrmcnt = strrst->strrst_num_streams; 3323 if ((int)(addstrmcnt + stcb->asoc.streamoutcnt) > 0xffff) { 3324 /* You can't have more than 64k */ 3325 error = EINVAL; 3326 goto skip_stuff; 3327 } 3328 if ((stcb->asoc.strm_realoutsize - stcb->asoc.streamoutcnt) < addstrmcnt) { 3329 /* Need to allocate more */ 3330 struct sctp_stream_out *oldstream; 3331 struct sctp_stream_queue_pending *sp; 3332 int removed; 3333 3334 oldstream = stcb->asoc.strmout; 3335 /* get some more */ 3336 SCTP_MALLOC(stcb->asoc.strmout, struct sctp_stream_out *, 3337 ((stcb->asoc.streamoutcnt + addstrmcnt) * sizeof(struct sctp_stream_out)), 3338 SCTP_M_STRMO); 3339 if (stcb->asoc.strmout == NULL) { 3340 stcb->asoc.strmout = oldstream; 3341 error = ENOMEM; 3342 goto skip_stuff; 3343 } 3344 /* 3345 * Ok now we proceed with copying 3346 * the old out stuff and 3347 * initializing the new stuff. 3348 */ 3349 SCTP_TCB_SEND_LOCK(stcb); 3350 for (i = 0; i < stcb->asoc.streamoutcnt; i++) { 3351 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); 3352 stcb->asoc.strmout[i].next_sequence_sent = oldstream[i].next_sequence_sent; 3353 stcb->asoc.strmout[i].last_msg_incomplete = oldstream[i].last_msg_incomplete; 3354 stcb->asoc.strmout[i].stream_no = i; 3355 if (oldstream[i].next_spoke.tqe_next) { 3356 sctp_remove_from_wheel(stcb, &stcb->asoc, &oldstream[i], 1); 3357 stcb->asoc.strmout[i].next_spoke.tqe_next = NULL; 3358 stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL; 3359 removed = 1; 3360 } else { 3361 /* not on out wheel */ 3362 stcb->asoc.strmout[i].next_spoke.tqe_next = NULL; 3363 stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL; 3364 removed = 0; 3365 } 3366 /* 3367 * now anything on those 3368 * queues? 3369 */ 3370 while (TAILQ_EMPTY(&oldstream[i].outqueue) == 0) { 3371 sp = TAILQ_FIRST(&oldstream[i].outqueue); 3372 TAILQ_REMOVE(&oldstream[i].outqueue, sp, next); 3373 TAILQ_INSERT_TAIL(&stcb->asoc.strmout[i].outqueue, sp, next); 3374 } 3375 /* Did we disrupt the wheel? */ 3376 if (removed) { 3377 sctp_insert_on_wheel(stcb, 3378 &stcb->asoc, 3379 &stcb->asoc.strmout[i], 3380 1); 3381 } 3382 /* 3383 * Now move assoc pointers 3384 * too 3385 */ 3386 if (stcb->asoc.last_out_stream == &oldstream[i]) { 3387 stcb->asoc.last_out_stream = &stcb->asoc.strmout[i]; 3388 } 3389 if (stcb->asoc.locked_on_sending == &oldstream[i]) { 3390 stcb->asoc.locked_on_sending = &stcb->asoc.strmout[i]; 3391 } 3392 } 3393 /* now the new streams */ 3394 for (i = stcb->asoc.streamoutcnt; i < (stcb->asoc.streamoutcnt + addstrmcnt); i++) { 3395 stcb->asoc.strmout[i].next_sequence_sent = 0x0; 3396 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); 3397 stcb->asoc.strmout[i].stream_no = i; 3398 stcb->asoc.strmout[i].last_msg_incomplete = 0; 3399 stcb->asoc.strmout[i].next_spoke.tqe_next = NULL; 3400 stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL; 3401 } 3402 stcb->asoc.strm_realoutsize = stcb->asoc.streamoutcnt + addstrmcnt; 3403 SCTP_FREE(oldstream, SCTP_M_STRMO); 3404 } 3405 SCTP_TCB_SEND_UNLOCK(stcb); 3406 goto skip_stuff; 3407 } else { 3408 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3409 error = EINVAL; 3410 SCTP_TCB_UNLOCK(stcb); 3411 break; 3412 } 3413 for (i = 0; i < strrst->strrst_num_streams; i++) { 3414 if ((send_in) && 3415 3416 (strrst->strrst_list[i] > stcb->asoc.streamincnt)) { 3417 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3418 error = EINVAL; 3419 goto get_out; 3420 } 3421 if ((send_out) && 3422 (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) { 3423 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3424 error = EINVAL; 3425 goto get_out; 3426 } 3427 } 3428 skip_stuff: 3429 if (error) { 3430 get_out: 3431 SCTP_TCB_UNLOCK(stcb); 3432 break; 3433 } 3434 error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams, 3435 strrst->strrst_list, 3436 send_out, (stcb->asoc.str_reset_seq_in - 3), 3437 send_in, send_tsn, addstream, addstrmcnt); 3438 3439 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED); 3440 SCTP_TCB_UNLOCK(stcb); 3441 } 3442 break; 3443 3444 case SCTP_CONNECT_X: 3445 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 3446 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3447 error = EINVAL; 3448 break; 3449 } 3450 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0); 3451 break; 3452 3453 case SCTP_CONNECT_X_DELAYED: 3454 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 3455 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3456 error = EINVAL; 3457 break; 3458 } 3459 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1); 3460 break; 3461 3462 case SCTP_CONNECT_X_COMPLETE: 3463 { 3464 struct sockaddr *sa; 3465 struct sctp_nets *net; 3466 3467 /* FIXME MT: check correct? */ 3468 SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize); 3469 3470 /* find tcb */ 3471 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 3472 SCTP_INP_RLOCK(inp); 3473 stcb = LIST_FIRST(&inp->sctp_asoc_list); 3474 if (stcb) { 3475 SCTP_TCB_LOCK(stcb); 3476 net = sctp_findnet(stcb, sa); 3477 } 3478 SCTP_INP_RUNLOCK(inp); 3479 } else { 3480 /* 3481 * We increment here since 3482 * sctp_findassociation_ep_addr() wil do a 3483 * decrement if it finds the stcb as long as 3484 * the locked tcb (last argument) is NOT a 3485 * TCB.. aka NULL. 3486 */ 3487 SCTP_INP_INCR_REF(inp); 3488 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL); 3489 if (stcb == NULL) { 3490 SCTP_INP_DECR_REF(inp); 3491 } 3492 } 3493 3494 if (stcb == NULL) { 3495 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 3496 error = ENOENT; 3497 break; 3498 } 3499 if (stcb->asoc.delayed_connection == 1) { 3500 stcb->asoc.delayed_connection = 0; 3501 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 3502 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb, 3503 stcb->asoc.primary_destination, 3504 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9); 3505 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 3506 } else { 3507 /* 3508 * already expired or did not use delayed 3509 * connectx 3510 */ 3511 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 3512 error = EALREADY; 3513 } 3514 SCTP_TCB_UNLOCK(stcb); 3515 } 3516 break; 3517 case SCTP_MAX_BURST: 3518 { 3519 uint8_t *burst; 3520 3521 SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize); 3522 3523 SCTP_INP_WLOCK(inp); 3524 if (*burst) { 3525 inp->sctp_ep.max_burst = *burst; 3526 } 3527 SCTP_INP_WUNLOCK(inp); 3528 } 3529 break; 3530 case SCTP_MAXSEG: 3531 { 3532 struct sctp_assoc_value *av; 3533 int ovh; 3534 3535 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3536 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3537 3538 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3539 ovh = SCTP_MED_OVERHEAD; 3540 } else { 3541 ovh = SCTP_MED_V4_OVERHEAD; 3542 } 3543 if (stcb) { 3544 if (av->assoc_value) { 3545 stcb->asoc.sctp_frag_point = (av->assoc_value + ovh); 3546 } else { 3547 stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3548 } 3549 SCTP_TCB_UNLOCK(stcb); 3550 } else { 3551 SCTP_INP_WLOCK(inp); 3552 /* 3553 * FIXME MT: I think this is not in tune 3554 * with the API ID 3555 */ 3556 if (av->assoc_value) { 3557 inp->sctp_frag_point = (av->assoc_value + ovh); 3558 } else { 3559 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3560 } 3561 SCTP_INP_WUNLOCK(inp); 3562 } 3563 } 3564 break; 3565 case SCTP_EVENTS: 3566 { 3567 struct sctp_event_subscribe *events; 3568 3569 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize); 3570 3571 SCTP_INP_WLOCK(inp); 3572 if (events->sctp_data_io_event) { 3573 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3574 } else { 3575 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3576 } 3577 3578 if (events->sctp_association_event) { 3579 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3580 } else { 3581 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3582 } 3583 3584 if (events->sctp_address_event) { 3585 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3586 } else { 3587 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3588 } 3589 3590 if (events->sctp_send_failure_event) { 3591 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3592 } else { 3593 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3594 } 3595 3596 if (events->sctp_peer_error_event) { 3597 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3598 } else { 3599 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3600 } 3601 3602 if (events->sctp_shutdown_event) { 3603 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3604 } else { 3605 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3606 } 3607 3608 if (events->sctp_partial_delivery_event) { 3609 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3610 } else { 3611 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3612 } 3613 3614 if (events->sctp_adaptation_layer_event) { 3615 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3616 } else { 3617 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3618 } 3619 3620 if (events->sctp_authentication_event) { 3621 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3622 } else { 3623 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3624 } 3625 3626 if (events->sctp_sender_dry_event) { 3627 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT); 3628 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3629 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 3630 stcb = LIST_FIRST(&inp->sctp_asoc_list); 3631 if (stcb) { 3632 SCTP_TCB_LOCK(stcb); 3633 } 3634 if (stcb && 3635 TAILQ_EMPTY(&stcb->asoc.send_queue) && 3636 TAILQ_EMPTY(&stcb->asoc.sent_queue) && 3637 (stcb->asoc.stream_queue_cnt == 0)) { 3638 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED); 3639 } 3640 if (stcb) { 3641 SCTP_TCB_UNLOCK(stcb); 3642 } 3643 } 3644 } else { 3645 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT); 3646 } 3647 3648 if (events->sctp_stream_reset_events) { 3649 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3650 } else { 3651 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3652 } 3653 SCTP_INP_WUNLOCK(inp); 3654 } 3655 break; 3656 3657 case SCTP_ADAPTATION_LAYER: 3658 { 3659 struct sctp_setadaptation *adap_bits; 3660 3661 SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize); 3662 SCTP_INP_WLOCK(inp); 3663 inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind; 3664 SCTP_INP_WUNLOCK(inp); 3665 } 3666 break; 3667 #ifdef SCTP_DEBUG 3668 case SCTP_SET_INITIAL_DBG_SEQ: 3669 { 3670 uint32_t *vvv; 3671 3672 SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize); 3673 SCTP_INP_WLOCK(inp); 3674 inp->sctp_ep.initial_sequence_debug = *vvv; 3675 SCTP_INP_WUNLOCK(inp); 3676 } 3677 break; 3678 #endif 3679 case SCTP_DEFAULT_SEND_PARAM: 3680 { 3681 struct sctp_sndrcvinfo *s_info; 3682 3683 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize); 3684 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 3685 3686 if (stcb) { 3687 if (s_info->sinfo_stream <= stcb->asoc.streamoutcnt) { 3688 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send))); 3689 } else { 3690 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3691 error = EINVAL; 3692 } 3693 SCTP_TCB_UNLOCK(stcb); 3694 } else { 3695 SCTP_INP_WLOCK(inp); 3696 memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send))); 3697 SCTP_INP_WUNLOCK(inp); 3698 } 3699 } 3700 break; 3701 case SCTP_PEER_ADDR_PARAMS: 3702 /* Applys to the specific association */ 3703 { 3704 struct sctp_paddrparams *paddrp; 3705 struct sctp_nets *net; 3706 3707 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize); 3708 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 3709 net = NULL; 3710 if (stcb) { 3711 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 3712 } else { 3713 /* 3714 * We increment here since 3715 * sctp_findassociation_ep_addr() wil do a 3716 * decrement if it finds the stcb as long as 3717 * the locked tcb (last argument) is NOT a 3718 * TCB.. aka NULL. 3719 */ 3720 SCTP_INP_INCR_REF(inp); 3721 stcb = sctp_findassociation_ep_addr(&inp, 3722 (struct sockaddr *)&paddrp->spp_address, 3723 &net, NULL, NULL); 3724 if (stcb == NULL) { 3725 SCTP_INP_DECR_REF(inp); 3726 } 3727 } 3728 if (stcb && (net == NULL)) { 3729 struct sockaddr *sa; 3730 3731 sa = (struct sockaddr *)&paddrp->spp_address; 3732 if (sa->sa_family == AF_INET) { 3733 struct sockaddr_in *sin; 3734 3735 sin = (struct sockaddr_in *)sa; 3736 if (sin->sin_addr.s_addr) { 3737 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3738 SCTP_TCB_UNLOCK(stcb); 3739 error = EINVAL; 3740 break; 3741 } 3742 } else if (sa->sa_family == AF_INET6) { 3743 struct sockaddr_in6 *sin6; 3744 3745 sin6 = (struct sockaddr_in6 *)sa; 3746 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 3747 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3748 SCTP_TCB_UNLOCK(stcb); 3749 error = EINVAL; 3750 break; 3751 } 3752 } else { 3753 error = EAFNOSUPPORT; 3754 SCTP_TCB_UNLOCK(stcb); 3755 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 3756 break; 3757 } 3758 } 3759 /* sanity checks */ 3760 if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) { 3761 if (stcb) 3762 SCTP_TCB_UNLOCK(stcb); 3763 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3764 return (EINVAL); 3765 } 3766 if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) { 3767 if (stcb) 3768 SCTP_TCB_UNLOCK(stcb); 3769 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3770 return (EINVAL); 3771 } 3772 if (stcb) { 3773 /************************TCB SPECIFIC SET ******************/ 3774 /* 3775 * do we change the timer for HB, we run 3776 * only one? 3777 */ 3778 int ovh = 0; 3779 3780 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3781 ovh = SCTP_MED_OVERHEAD; 3782 } else { 3783 ovh = SCTP_MED_V4_OVERHEAD; 3784 } 3785 3786 if (paddrp->spp_hbinterval) 3787 stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval; 3788 else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 3789 stcb->asoc.heart_beat_delay = 0; 3790 3791 /* network sets ? */ 3792 if (net) { 3793 /************************NET SPECIFIC SET ******************/ 3794 if (paddrp->spp_flags & SPP_HB_DEMAND) { 3795 /* on demand HB */ 3796 if (sctp_send_hb(stcb, 1, net) < 0) { 3797 /* asoc destroyed */ 3798 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3799 error = EINVAL; 3800 break; 3801 } 3802 } 3803 if (paddrp->spp_flags & SPP_HB_DISABLE) { 3804 net->dest_state |= SCTP_ADDR_NOHB; 3805 } 3806 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3807 net->dest_state &= ~SCTP_ADDR_NOHB; 3808 } 3809 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3810 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3811 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3812 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3813 } 3814 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3815 net->mtu = paddrp->spp_pathmtu + ovh; 3816 if (net->mtu < stcb->asoc.smallest_mtu) { 3817 #ifdef SCTP_PRINT_FOR_B_AND_M 3818 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n", 3819 net->mtu); 3820 #endif 3821 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3822 } 3823 } 3824 } 3825 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3826 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3827 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3828 } 3829 } 3830 if (paddrp->spp_pathmaxrxt) 3831 net->failure_threshold = paddrp->spp_pathmaxrxt; 3832 #ifdef INET 3833 if (paddrp->spp_flags & SPP_IPV4_TOS) { 3834 if (net->ro._l_addr.sin.sin_family == AF_INET) { 3835 net->tos_flowlabel = paddrp->spp_ipv4_tos & 0x000000fc; 3836 } 3837 } 3838 #endif 3839 #ifdef INET6 3840 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) { 3841 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 3842 net->tos_flowlabel = paddrp->spp_ipv6_flowlabel; 3843 } 3844 } 3845 #endif 3846 } else { 3847 /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/ 3848 if (paddrp->spp_pathmaxrxt) 3849 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt; 3850 3851 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3852 /* Turn back on the timer */ 3853 stcb->asoc.hb_is_disabled = 0; 3854 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 3855 } 3856 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3857 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3858 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3859 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3860 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3861 } 3862 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3863 net->mtu = paddrp->spp_pathmtu + ovh; 3864 if (net->mtu < stcb->asoc.smallest_mtu) { 3865 #ifdef SCTP_PRINT_FOR_B_AND_M 3866 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n", 3867 net->mtu); 3868 #endif 3869 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3870 } 3871 } 3872 } 3873 } 3874 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3875 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3876 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3877 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3878 } 3879 } 3880 } 3881 if (paddrp->spp_flags & SPP_HB_DISABLE) { 3882 int cnt_of_unconf = 0; 3883 struct sctp_nets *lnet; 3884 3885 stcb->asoc.hb_is_disabled = 1; 3886 TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) { 3887 if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) { 3888 cnt_of_unconf++; 3889 } 3890 } 3891 /* 3892 * stop the timer ONLY if we 3893 * have no unconfirmed 3894 * addresses 3895 */ 3896 if (cnt_of_unconf == 0) { 3897 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3898 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, 3899 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11); 3900 } 3901 } 3902 } 3903 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3904 /* start up the timer. */ 3905 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3906 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 3907 } 3908 } 3909 #ifdef INET 3910 if (paddrp->spp_flags & SPP_IPV4_TOS) 3911 stcb->asoc.default_tos = paddrp->spp_ipv4_tos & 0x000000fc; 3912 #endif 3913 #ifdef INET6 3914 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) 3915 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel; 3916 #endif 3917 3918 } 3919 SCTP_TCB_UNLOCK(stcb); 3920 } else { 3921 /************************NO TCB, SET TO default stuff ******************/ 3922 SCTP_INP_WLOCK(inp); 3923 /* 3924 * For the TOS/FLOWLABEL stuff you set it 3925 * with the options on the socket 3926 */ 3927 if (paddrp->spp_pathmaxrxt) { 3928 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt; 3929 } 3930 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 3931 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0; 3932 else if (paddrp->spp_hbinterval) { 3933 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL) 3934 paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL; 3935 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval); 3936 } 3937 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3938 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 3939 3940 } else if (paddrp->spp_flags & SPP_HB_DISABLE) { 3941 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 3942 } 3943 SCTP_INP_WUNLOCK(inp); 3944 } 3945 } 3946 break; 3947 case SCTP_RTOINFO: 3948 { 3949 struct sctp_rtoinfo *srto; 3950 uint32_t new_init, new_min, new_max; 3951 3952 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize); 3953 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 3954 3955 if (stcb) { 3956 if (srto->srto_initial) 3957 new_init = srto->srto_initial; 3958 else 3959 new_init = stcb->asoc.initial_rto; 3960 if (srto->srto_max) 3961 new_max = srto->srto_max; 3962 else 3963 new_max = stcb->asoc.maxrto; 3964 if (srto->srto_min) 3965 new_min = srto->srto_min; 3966 else 3967 new_min = stcb->asoc.minrto; 3968 if ((new_min <= new_init) && (new_init <= new_max)) { 3969 stcb->asoc.initial_rto = new_init; 3970 stcb->asoc.maxrto = new_max; 3971 stcb->asoc.minrto = new_min; 3972 } else { 3973 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3974 error = EINVAL; 3975 } 3976 SCTP_TCB_UNLOCK(stcb); 3977 } else { 3978 SCTP_INP_WLOCK(inp); 3979 if (srto->srto_initial) 3980 new_init = srto->srto_initial; 3981 else 3982 new_init = inp->sctp_ep.initial_rto; 3983 if (srto->srto_max) 3984 new_max = srto->srto_max; 3985 else 3986 new_max = inp->sctp_ep.sctp_maxrto; 3987 if (srto->srto_min) 3988 new_min = srto->srto_min; 3989 else 3990 new_min = inp->sctp_ep.sctp_minrto; 3991 if ((new_min <= new_init) && (new_init <= new_max)) { 3992 inp->sctp_ep.initial_rto = new_init; 3993 inp->sctp_ep.sctp_maxrto = new_max; 3994 inp->sctp_ep.sctp_minrto = new_min; 3995 } else { 3996 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3997 error = EINVAL; 3998 } 3999 SCTP_INP_WUNLOCK(inp); 4000 } 4001 } 4002 break; 4003 case SCTP_ASSOCINFO: 4004 { 4005 struct sctp_assocparams *sasoc; 4006 4007 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize); 4008 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 4009 if (sasoc->sasoc_cookie_life) { 4010 /* boundary check the cookie life */ 4011 if (sasoc->sasoc_cookie_life < 1000) 4012 sasoc->sasoc_cookie_life = 1000; 4013 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) { 4014 sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE; 4015 } 4016 } 4017 if (stcb) { 4018 if (sasoc->sasoc_asocmaxrxt) 4019 stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt; 4020 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 4021 sasoc->sasoc_peer_rwnd = 0; 4022 sasoc->sasoc_local_rwnd = 0; 4023 if (sasoc->sasoc_cookie_life) { 4024 stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 4025 } 4026 SCTP_TCB_UNLOCK(stcb); 4027 } else { 4028 SCTP_INP_WLOCK(inp); 4029 if (sasoc->sasoc_asocmaxrxt) 4030 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt; 4031 sasoc->sasoc_number_peer_destinations = 0; 4032 sasoc->sasoc_peer_rwnd = 0; 4033 sasoc->sasoc_local_rwnd = 0; 4034 if (sasoc->sasoc_cookie_life) { 4035 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 4036 } 4037 SCTP_INP_WUNLOCK(inp); 4038 } 4039 } 4040 break; 4041 case SCTP_INITMSG: 4042 { 4043 struct sctp_initmsg *sinit; 4044 4045 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize); 4046 SCTP_INP_WLOCK(inp); 4047 if (sinit->sinit_num_ostreams) 4048 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams; 4049 4050 if (sinit->sinit_max_instreams) 4051 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams; 4052 4053 if (sinit->sinit_max_attempts) 4054 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts; 4055 4056 if (sinit->sinit_max_init_timeo) 4057 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo; 4058 SCTP_INP_WUNLOCK(inp); 4059 } 4060 break; 4061 case SCTP_PRIMARY_ADDR: 4062 { 4063 struct sctp_setprim *spa; 4064 struct sctp_nets *net, *lnet; 4065 4066 SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize); 4067 SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id); 4068 4069 net = NULL; 4070 if (stcb) { 4071 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr); 4072 } else { 4073 /* 4074 * We increment here since 4075 * sctp_findassociation_ep_addr() wil do a 4076 * decrement if it finds the stcb as long as 4077 * the locked tcb (last argument) is NOT a 4078 * TCB.. aka NULL. 4079 */ 4080 SCTP_INP_INCR_REF(inp); 4081 stcb = sctp_findassociation_ep_addr(&inp, 4082 (struct sockaddr *)&spa->ssp_addr, 4083 &net, NULL, NULL); 4084 if (stcb == NULL) { 4085 SCTP_INP_DECR_REF(inp); 4086 } 4087 } 4088 4089 if ((stcb) && (net)) { 4090 if ((net != stcb->asoc.primary_destination) && 4091 (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) { 4092 /* Ok we need to set it */ 4093 lnet = stcb->asoc.primary_destination; 4094 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) { 4095 if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) { 4096 net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH; 4097 } 4098 net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY; 4099 } 4100 } 4101 } else { 4102 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4103 error = EINVAL; 4104 } 4105 if (stcb) { 4106 SCTP_TCB_UNLOCK(stcb); 4107 } 4108 } 4109 break; 4110 case SCTP_SET_DYNAMIC_PRIMARY: 4111 { 4112 union sctp_sockstore *ss; 4113 4114 error = priv_check(curthread, 4115 PRIV_NETINET_RESERVEDPORT); 4116 if (error) 4117 break; 4118 4119 SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize); 4120 /* SUPER USER CHECK? */ 4121 error = sctp_dynamic_set_primary(&ss->sa, vrf_id); 4122 } 4123 break; 4124 case SCTP_SET_PEER_PRIMARY_ADDR: 4125 { 4126 struct sctp_setpeerprim *sspp; 4127 4128 SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize); 4129 SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id); 4130 if (stcb != NULL) { 4131 struct sctp_ifa *ifa; 4132 4133 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr, 4134 stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED); 4135 if (ifa == NULL) { 4136 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4137 error = EINVAL; 4138 goto out_of_it; 4139 } 4140 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 4141 /* 4142 * Must validate the ifa found is in 4143 * our ep 4144 */ 4145 struct sctp_laddr *laddr; 4146 int found = 0; 4147 4148 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4149 if (laddr->ifa == NULL) { 4150 SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n", 4151 __FUNCTION__); 4152 continue; 4153 } 4154 if (laddr->ifa == ifa) { 4155 found = 1; 4156 break; 4157 } 4158 } 4159 if (!found) { 4160 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4161 error = EINVAL; 4162 goto out_of_it; 4163 } 4164 } 4165 if (sctp_set_primary_ip_address_sa(stcb, 4166 (struct sockaddr *)&sspp->sspp_addr) != 0) { 4167 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4168 error = EINVAL; 4169 } 4170 out_of_it: 4171 SCTP_TCB_UNLOCK(stcb); 4172 } else { 4173 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4174 error = EINVAL; 4175 } 4176 4177 } 4178 break; 4179 case SCTP_BINDX_ADD_ADDR: 4180 { 4181 struct sctp_getaddresses *addrs; 4182 size_t sz; 4183 struct thread *td; 4184 4185 td = (struct thread *)p; 4186 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, 4187 optsize); 4188 if (addrs->addr->sa_family == AF_INET) { 4189 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 4190 if (optsize < sz) { 4191 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4192 error = EINVAL; 4193 break; 4194 } 4195 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { 4196 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4197 break; 4198 } 4199 #ifdef INET6 4200 } else if (addrs->addr->sa_family == AF_INET6) { 4201 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 4202 if (optsize < sz) { 4203 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4204 error = EINVAL; 4205 break; 4206 } 4207 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), 4208 (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { 4209 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4210 break; 4211 } 4212 #endif 4213 } else { 4214 error = EAFNOSUPPORT; 4215 break; 4216 } 4217 sctp_bindx_add_address(so, inp, addrs->addr, 4218 addrs->sget_assoc_id, vrf_id, 4219 &error, p); 4220 } 4221 break; 4222 case SCTP_BINDX_REM_ADDR: 4223 { 4224 struct sctp_getaddresses *addrs; 4225 size_t sz; 4226 struct thread *td; 4227 4228 td = (struct thread *)p; 4229 4230 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize); 4231 if (addrs->addr->sa_family == AF_INET) { 4232 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 4233 if (optsize < sz) { 4234 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4235 error = EINVAL; 4236 break; 4237 } 4238 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { 4239 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4240 break; 4241 } 4242 #ifdef INET6 4243 } else if (addrs->addr->sa_family == AF_INET6) { 4244 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 4245 if (optsize < sz) { 4246 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4247 error = EINVAL; 4248 break; 4249 } 4250 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), 4251 (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { 4252 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4253 break; 4254 } 4255 #endif 4256 } else { 4257 error = EAFNOSUPPORT; 4258 break; 4259 } 4260 sctp_bindx_delete_address(so, inp, addrs->addr, 4261 addrs->sget_assoc_id, vrf_id, 4262 &error); 4263 } 4264 break; 4265 default: 4266 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 4267 error = ENOPROTOOPT; 4268 break; 4269 } /* end switch (opt) */ 4270 return (error); 4271 } 4272 4273 int 4274 sctp_ctloutput(struct socket *so, struct sockopt *sopt) 4275 { 4276 void *optval = NULL; 4277 size_t optsize = 0; 4278 struct sctp_inpcb *inp; 4279 void *p; 4280 int error = 0; 4281 4282 inp = (struct sctp_inpcb *)so->so_pcb; 4283 if (inp == 0) { 4284 /* I made the same as TCP since we are not setup? */ 4285 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4286 return (ECONNRESET); 4287 } 4288 if (sopt->sopt_level != IPPROTO_SCTP) { 4289 /* wrong proto level... send back up to IP */ 4290 #ifdef INET6 4291 if (INP_CHECK_SOCKAF(so, AF_INET6)) 4292 error = ip6_ctloutput(so, sopt); 4293 else 4294 #endif /* INET6 */ 4295 error = ip_ctloutput(so, sopt); 4296 return (error); 4297 } 4298 optsize = sopt->sopt_valsize; 4299 if (optsize) { 4300 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT); 4301 if (optval == NULL) { 4302 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS); 4303 return (ENOBUFS); 4304 } 4305 error = sooptcopyin(sopt, optval, optsize, optsize); 4306 if (error) { 4307 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4308 goto out; 4309 } 4310 } 4311 p = (void *)sopt->sopt_td; 4312 if (sopt->sopt_dir == SOPT_SET) { 4313 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p); 4314 } else if (sopt->sopt_dir == SOPT_GET) { 4315 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p); 4316 } else { 4317 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4318 error = EINVAL; 4319 } 4320 if ((error == 0) && (optval != NULL)) { 4321 error = sooptcopyout(sopt, optval, optsize); 4322 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4323 } else if (optval != NULL) { 4324 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4325 } 4326 out: 4327 return (error); 4328 } 4329 4330 4331 static int 4332 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p) 4333 { 4334 int error = 0; 4335 int create_lock_on = 0; 4336 uint32_t vrf_id; 4337 struct sctp_inpcb *inp; 4338 struct sctp_tcb *stcb = NULL; 4339 4340 inp = (struct sctp_inpcb *)so->so_pcb; 4341 if (inp == 0) { 4342 /* I made the same as TCP since we are not setup? */ 4343 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4344 return (ECONNRESET); 4345 } 4346 if (addr == NULL) { 4347 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4348 return EINVAL; 4349 } 4350 #ifdef INET6 4351 if (addr->sa_family == AF_INET6) { 4352 struct sockaddr_in6 *sin6p; 4353 4354 if (addr->sa_len != sizeof(struct sockaddr_in6)) { 4355 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4356 return (EINVAL); 4357 } 4358 sin6p = (struct sockaddr_in6 *)addr; 4359 if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) { 4360 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 4361 return (error); 4362 } 4363 } else 4364 #endif 4365 if (addr->sa_family == AF_INET) { 4366 struct sockaddr_in *sinp; 4367 4368 if (addr->sa_len != sizeof(struct sockaddr_in)) { 4369 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4370 return (EINVAL); 4371 } 4372 sinp = (struct sockaddr_in *)addr; 4373 if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) { 4374 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 4375 return (error); 4376 } 4377 } else { 4378 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT); 4379 return (EAFNOSUPPORT); 4380 } 4381 SCTP_INP_INCR_REF(inp); 4382 SCTP_ASOC_CREATE_LOCK(inp); 4383 create_lock_on = 1; 4384 4385 4386 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 4387 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 4388 /* Should I really unlock ? */ 4389 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 4390 error = EFAULT; 4391 goto out_now; 4392 } 4393 #ifdef INET6 4394 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 4395 (addr->sa_family == AF_INET6)) { 4396 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4397 error = EINVAL; 4398 goto out_now; 4399 } 4400 #endif /* INET6 */ 4401 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 4402 SCTP_PCB_FLAGS_UNBOUND) { 4403 /* Bind a ephemeral port */ 4404 error = sctp_inpcb_bind(so, NULL, NULL, p); 4405 if (error) { 4406 goto out_now; 4407 } 4408 } 4409 /* Now do we connect? */ 4410 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) && 4411 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) { 4412 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4413 error = EINVAL; 4414 goto out_now; 4415 } 4416 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 4417 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 4418 /* We are already connected AND the TCP model */ 4419 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 4420 error = EADDRINUSE; 4421 goto out_now; 4422 } 4423 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4424 SCTP_INP_RLOCK(inp); 4425 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4426 SCTP_INP_RUNLOCK(inp); 4427 } else { 4428 /* 4429 * We increment here since sctp_findassociation_ep_addr() 4430 * will do a decrement if it finds the stcb as long as the 4431 * locked tcb (last argument) is NOT a TCB.. aka NULL. 4432 */ 4433 SCTP_INP_INCR_REF(inp); 4434 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL); 4435 if (stcb == NULL) { 4436 SCTP_INP_DECR_REF(inp); 4437 } else { 4438 SCTP_TCB_UNLOCK(stcb); 4439 } 4440 } 4441 if (stcb != NULL) { 4442 /* Already have or am bring up an association */ 4443 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 4444 error = EALREADY; 4445 goto out_now; 4446 } 4447 vrf_id = inp->def_vrf_id; 4448 /* We are GOOD to go */ 4449 stcb = sctp_aloc_assoc(inp, addr, 1, &error, 0, vrf_id, p); 4450 if (stcb == NULL) { 4451 /* Gak! no memory */ 4452 goto out_now; 4453 } 4454 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 4455 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 4456 /* Set the connected flag so we can queue data */ 4457 soisconnecting(so); 4458 } 4459 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 4460 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 4461 4462 /* initialize authentication parameters for the assoc */ 4463 sctp_initialize_auth_params(inp, stcb); 4464 4465 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 4466 SCTP_TCB_UNLOCK(stcb); 4467 out_now: 4468 if (create_lock_on) { 4469 SCTP_ASOC_CREATE_UNLOCK(inp); 4470 } 4471 SCTP_INP_DECR_REF(inp); 4472 return error; 4473 } 4474 4475 int 4476 sctp_listen(struct socket *so, int backlog, struct thread *p) 4477 { 4478 /* 4479 * Note this module depends on the protocol processing being called 4480 * AFTER any socket level flags and backlog are applied to the 4481 * socket. The traditional way that the socket flags are applied is 4482 * AFTER protocol processing. We have made a change to the 4483 * sys/kern/uipc_socket.c module to reverse this but this MUST be in 4484 * place if the socket API for SCTP is to work properly. 4485 */ 4486 4487 int error = 0; 4488 struct sctp_inpcb *inp; 4489 4490 inp = (struct sctp_inpcb *)so->so_pcb; 4491 if (inp == 0) { 4492 /* I made the same as TCP since we are not setup? */ 4493 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4494 return (ECONNRESET); 4495 } 4496 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) { 4497 /* See if we have a listener */ 4498 struct sctp_inpcb *tinp; 4499 union sctp_sockstore store, *sp; 4500 4501 sp = &store; 4502 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 4503 /* not bound all */ 4504 struct sctp_laddr *laddr; 4505 4506 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4507 memcpy(&store, &laddr->ifa->address, sizeof(store)); 4508 sp->sin.sin_port = inp->sctp_lport; 4509 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id); 4510 if (tinp && (tinp != inp) && 4511 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) && 4512 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 4513 (tinp->sctp_socket->so_qlimit)) { 4514 /* 4515 * we have a listener already and 4516 * its not this inp. 4517 */ 4518 SCTP_INP_DECR_REF(tinp); 4519 return (EADDRINUSE); 4520 } else if (tinp) { 4521 SCTP_INP_DECR_REF(tinp); 4522 } 4523 } 4524 } else { 4525 /* Setup a local addr bound all */ 4526 memset(&store, 0, sizeof(store)); 4527 store.sin.sin_port = inp->sctp_lport; 4528 #ifdef INET6 4529 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 4530 store.sa.sa_family = AF_INET6; 4531 store.sa.sa_len = sizeof(struct sockaddr_in6); 4532 } 4533 #endif 4534 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) { 4535 store.sa.sa_family = AF_INET; 4536 store.sa.sa_len = sizeof(struct sockaddr_in); 4537 } 4538 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id); 4539 if (tinp && (tinp != inp) && 4540 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) && 4541 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 4542 (tinp->sctp_socket->so_qlimit)) { 4543 /* 4544 * we have a listener already and its not 4545 * this inp. 4546 */ 4547 SCTP_INP_DECR_REF(tinp); 4548 return (EADDRINUSE); 4549 } else if (tinp) { 4550 SCTP_INP_DECR_REF(inp); 4551 } 4552 } 4553 } 4554 SCTP_INP_RLOCK(inp); 4555 #ifdef SCTP_LOCK_LOGGING 4556 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) { 4557 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK); 4558 } 4559 #endif 4560 SOCK_LOCK(so); 4561 error = solisten_proto_check(so); 4562 if (error) { 4563 SOCK_UNLOCK(so); 4564 SCTP_INP_RUNLOCK(inp); 4565 return (error); 4566 } 4567 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) && 4568 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 4569 /* 4570 * The unlucky case - We are in the tcp pool with this guy. 4571 * - Someone else is in the main inp slot. - We must move 4572 * this guy (the listener) to the main slot - We must then 4573 * move the guy that was listener to the TCP Pool. 4574 */ 4575 if (sctp_swap_inpcb_for_listen(inp)) { 4576 goto in_use; 4577 } 4578 } 4579 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 4580 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 4581 /* We are already connected AND the TCP model */ 4582 in_use: 4583 SCTP_INP_RUNLOCK(inp); 4584 SOCK_UNLOCK(so); 4585 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 4586 return (EADDRINUSE); 4587 } 4588 SCTP_INP_RUNLOCK(inp); 4589 if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) { 4590 /* We must do a bind. */ 4591 SOCK_UNLOCK(so); 4592 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) { 4593 /* bind error, probably perm */ 4594 return (error); 4595 } 4596 SOCK_LOCK(so); 4597 } 4598 /* It appears for 7.0 and on, we must always call this. */ 4599 solisten_proto(so, backlog); 4600 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 4601 /* remove the ACCEPTCONN flag for one-to-many sockets */ 4602 so->so_options &= ~SO_ACCEPTCONN; 4603 } 4604 if (backlog == 0) { 4605 /* turning off listen */ 4606 so->so_options &= ~SO_ACCEPTCONN; 4607 } 4608 SOCK_UNLOCK(so); 4609 return (error); 4610 } 4611 4612 static int sctp_defered_wakeup_cnt = 0; 4613 4614 int 4615 sctp_accept(struct socket *so, struct sockaddr **addr) 4616 { 4617 struct sctp_tcb *stcb; 4618 struct sctp_inpcb *inp; 4619 union sctp_sockstore store; 4620 4621 #ifdef INET6 4622 int error; 4623 4624 #endif 4625 inp = (struct sctp_inpcb *)so->so_pcb; 4626 4627 if (inp == 0) { 4628 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4629 return (ECONNRESET); 4630 } 4631 SCTP_INP_RLOCK(inp); 4632 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 4633 SCTP_INP_RUNLOCK(inp); 4634 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 4635 return (EOPNOTSUPP); 4636 } 4637 if (so->so_state & SS_ISDISCONNECTED) { 4638 SCTP_INP_RUNLOCK(inp); 4639 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED); 4640 return (ECONNABORTED); 4641 } 4642 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4643 if (stcb == NULL) { 4644 SCTP_INP_RUNLOCK(inp); 4645 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4646 return (ECONNRESET); 4647 } 4648 SCTP_TCB_LOCK(stcb); 4649 SCTP_INP_RUNLOCK(inp); 4650 store = stcb->asoc.primary_destination->ro._l_addr; 4651 SCTP_TCB_UNLOCK(stcb); 4652 switch (store.sa.sa_family) { 4653 case AF_INET: 4654 { 4655 struct sockaddr_in *sin; 4656 4657 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4658 sin->sin_family = AF_INET; 4659 sin->sin_len = sizeof(*sin); 4660 sin->sin_port = ((struct sockaddr_in *)&store)->sin_port; 4661 sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr; 4662 *addr = (struct sockaddr *)sin; 4663 break; 4664 } 4665 #ifdef INET6 4666 case AF_INET6: 4667 { 4668 struct sockaddr_in6 *sin6; 4669 4670 SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6); 4671 sin6->sin6_family = AF_INET6; 4672 sin6->sin6_len = sizeof(*sin6); 4673 sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port; 4674 4675 sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr; 4676 if ((error = sa6_recoverscope(sin6)) != 0) { 4677 SCTP_FREE_SONAME(sin6); 4678 return (error); 4679 } 4680 *addr = (struct sockaddr *)sin6; 4681 break; 4682 } 4683 #endif 4684 default: 4685 /* TSNH */ 4686 break; 4687 } 4688 /* Wake any delayed sleep action */ 4689 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { 4690 SCTP_INP_WLOCK(inp); 4691 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE; 4692 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) { 4693 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT; 4694 SCTP_INP_WUNLOCK(inp); 4695 SOCKBUF_LOCK(&inp->sctp_socket->so_snd); 4696 if (sowriteable(inp->sctp_socket)) { 4697 sowwakeup_locked(inp->sctp_socket); 4698 } else { 4699 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd); 4700 } 4701 SCTP_INP_WLOCK(inp); 4702 } 4703 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) { 4704 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT; 4705 SCTP_INP_WUNLOCK(inp); 4706 SOCKBUF_LOCK(&inp->sctp_socket->so_rcv); 4707 if (soreadable(inp->sctp_socket)) { 4708 sctp_defered_wakeup_cnt++; 4709 sorwakeup_locked(inp->sctp_socket); 4710 } else { 4711 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv); 4712 } 4713 SCTP_INP_WLOCK(inp); 4714 } 4715 SCTP_INP_WUNLOCK(inp); 4716 } 4717 return (0); 4718 } 4719 4720 int 4721 sctp_ingetaddr(struct socket *so, struct sockaddr **addr) 4722 { 4723 struct sockaddr_in *sin; 4724 uint32_t vrf_id; 4725 struct sctp_inpcb *inp; 4726 struct sctp_ifa *sctp_ifa; 4727 4728 /* 4729 * Do the malloc first in case it blocks. 4730 */ 4731 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4732 sin->sin_family = AF_INET; 4733 sin->sin_len = sizeof(*sin); 4734 inp = (struct sctp_inpcb *)so->so_pcb; 4735 if (!inp) { 4736 SCTP_FREE_SONAME(sin); 4737 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4738 return ECONNRESET; 4739 } 4740 SCTP_INP_RLOCK(inp); 4741 sin->sin_port = inp->sctp_lport; 4742 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 4743 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4744 struct sctp_tcb *stcb; 4745 struct sockaddr_in *sin_a; 4746 struct sctp_nets *net; 4747 int fnd; 4748 4749 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4750 if (stcb == NULL) { 4751 goto notConn; 4752 } 4753 fnd = 0; 4754 sin_a = NULL; 4755 SCTP_TCB_LOCK(stcb); 4756 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4757 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 4758 if (sin_a == NULL) 4759 /* this will make coverity happy */ 4760 continue; 4761 4762 if (sin_a->sin_family == AF_INET) { 4763 fnd = 1; 4764 break; 4765 } 4766 } 4767 if ((!fnd) || (sin_a == NULL)) { 4768 /* punt */ 4769 SCTP_TCB_UNLOCK(stcb); 4770 goto notConn; 4771 } 4772 vrf_id = inp->def_vrf_id; 4773 sctp_ifa = sctp_source_address_selection(inp, 4774 stcb, 4775 (sctp_route_t *) & net->ro, 4776 net, 0, vrf_id); 4777 if (sctp_ifa) { 4778 sin->sin_addr = sctp_ifa->address.sin.sin_addr; 4779 sctp_free_ifa(sctp_ifa); 4780 } 4781 SCTP_TCB_UNLOCK(stcb); 4782 } else { 4783 /* For the bound all case you get back 0 */ 4784 notConn: 4785 sin->sin_addr.s_addr = 0; 4786 } 4787 4788 } else { 4789 /* Take the first IPv4 address in the list */ 4790 struct sctp_laddr *laddr; 4791 int fnd = 0; 4792 4793 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4794 if (laddr->ifa->address.sa.sa_family == AF_INET) { 4795 struct sockaddr_in *sin_a; 4796 4797 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa; 4798 sin->sin_addr = sin_a->sin_addr; 4799 fnd = 1; 4800 break; 4801 } 4802 } 4803 if (!fnd) { 4804 SCTP_FREE_SONAME(sin); 4805 SCTP_INP_RUNLOCK(inp); 4806 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4807 return ENOENT; 4808 } 4809 } 4810 SCTP_INP_RUNLOCK(inp); 4811 (*addr) = (struct sockaddr *)sin; 4812 return (0); 4813 } 4814 4815 int 4816 sctp_peeraddr(struct socket *so, struct sockaddr **addr) 4817 { 4818 struct sockaddr_in *sin = (struct sockaddr_in *)*addr; 4819 int fnd; 4820 struct sockaddr_in *sin_a; 4821 struct sctp_inpcb *inp; 4822 struct sctp_tcb *stcb; 4823 struct sctp_nets *net; 4824 4825 /* Do the malloc first in case it blocks. */ 4826 inp = (struct sctp_inpcb *)so->so_pcb; 4827 if ((inp == NULL) || 4828 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { 4829 /* UDP type and listeners will drop out here */ 4830 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 4831 return (ENOTCONN); 4832 } 4833 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4834 sin->sin_family = AF_INET; 4835 sin->sin_len = sizeof(*sin); 4836 4837 /* We must recapture incase we blocked */ 4838 inp = (struct sctp_inpcb *)so->so_pcb; 4839 if (!inp) { 4840 SCTP_FREE_SONAME(sin); 4841 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4842 return ECONNRESET; 4843 } 4844 SCTP_INP_RLOCK(inp); 4845 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4846 if (stcb) { 4847 SCTP_TCB_LOCK(stcb); 4848 } 4849 SCTP_INP_RUNLOCK(inp); 4850 if (stcb == NULL) { 4851 SCTP_FREE_SONAME(sin); 4852 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4853 return ECONNRESET; 4854 } 4855 fnd = 0; 4856 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4857 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 4858 if (sin_a->sin_family == AF_INET) { 4859 fnd = 1; 4860 sin->sin_port = stcb->rport; 4861 sin->sin_addr = sin_a->sin_addr; 4862 break; 4863 } 4864 } 4865 SCTP_TCB_UNLOCK(stcb); 4866 if (!fnd) { 4867 /* No IPv4 address */ 4868 SCTP_FREE_SONAME(sin); 4869 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4870 return ENOENT; 4871 } 4872 (*addr) = (struct sockaddr *)sin; 4873 return (0); 4874 } 4875 4876 struct pr_usrreqs sctp_usrreqs = { 4877 .pru_abort = sctp_abort, 4878 .pru_accept = sctp_accept, 4879 .pru_attach = sctp_attach, 4880 .pru_bind = sctp_bind, 4881 .pru_connect = sctp_connect, 4882 .pru_control = in_control, 4883 .pru_close = sctp_close, 4884 .pru_detach = sctp_close, 4885 .pru_sopoll = sopoll_generic, 4886 .pru_flush = sctp_flush, 4887 .pru_disconnect = sctp_disconnect, 4888 .pru_listen = sctp_listen, 4889 .pru_peeraddr = sctp_peeraddr, 4890 .pru_send = sctp_sendm, 4891 .pru_shutdown = sctp_shutdown, 4892 .pru_sockaddr = sctp_ingetaddr, 4893 .pru_sosend = sctp_sosend, 4894 .pru_soreceive = sctp_soreceive 4895 }; 4896