1 /*- 2 * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. 3 * Copyright (c) 2008-2011, by Randall Stewart. All rights reserved. 4 * Copyright (c) 2008-2011, by Michael Tuexen. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * a) Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * b) Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the distribution. 15 * 16 * c) Neither the name of Cisco Systems, Inc. nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $ */ 34 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 #include <netinet/sctp_os.h> 38 #include <sys/proc.h> 39 #include <netinet/sctp_pcb.h> 40 #include <netinet/sctp_header.h> 41 #include <netinet/sctp_var.h> 42 #if defined(INET6) 43 #endif 44 #include <netinet/sctp_sysctl.h> 45 #include <netinet/sctp_output.h> 46 #include <netinet/sctp_uio.h> 47 #include <netinet/sctp_asconf.h> 48 #include <netinet/sctputil.h> 49 #include <netinet/sctp_indata.h> 50 #include <netinet/sctp_timer.h> 51 #include <netinet/sctp_auth.h> 52 #include <netinet/sctp_bsd_addr.h> 53 #include <netinet/udp.h> 54 55 56 57 extern struct sctp_cc_functions sctp_cc_functions[]; 58 extern struct sctp_ss_functions sctp_ss_functions[]; 59 60 void 61 sctp_init(void) 62 { 63 u_long sb_max_adj; 64 65 /* Initialize and modify the sysctled variables */ 66 sctp_init_sysctls(); 67 if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE) 68 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8); 69 /* 70 * Allow a user to take no more than 1/2 the number of clusters or 71 * the SB_MAX whichever is smaller for the send window. 72 */ 73 sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES)); 74 SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj, 75 (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT)); 76 /* 77 * Now for the recv window, should we take the same amount? or 78 * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For 79 * now I will just copy. 80 */ 81 SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace); 82 83 SCTP_BASE_VAR(first_time) = 0; 84 SCTP_BASE_VAR(sctp_pcb_initialized) = 0; 85 sctp_pcb_init(); 86 #if defined(SCTP_PACKET_LOGGING) 87 SCTP_BASE_VAR(packet_log_writers) = 0; 88 SCTP_BASE_VAR(packet_log_end) = 0; 89 bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE); 90 #endif 91 92 93 } 94 95 void 96 sctp_finish(void) 97 { 98 sctp_pcb_finish(); 99 } 100 101 102 103 void 104 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz) 105 { 106 struct sctp_tmit_chunk *chk; 107 uint16_t overhead; 108 109 /* Adjust that too */ 110 stcb->asoc.smallest_mtu = nxtsz; 111 /* now off to subtract IP_DF flag if needed */ 112 overhead = IP_HDR_SIZE; 113 if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) { 114 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id); 115 } 116 TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) { 117 if ((chk->send_size + overhead) > nxtsz) { 118 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 119 } 120 } 121 TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { 122 if ((chk->send_size + overhead) > nxtsz) { 123 /* 124 * For this guy we also mark for immediate resend 125 * since we sent to big of chunk 126 */ 127 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 128 if (chk->sent < SCTP_DATAGRAM_RESEND) { 129 sctp_flight_size_decrease(chk); 130 sctp_total_flight_decrease(stcb, chk); 131 } 132 if (chk->sent != SCTP_DATAGRAM_RESEND) { 133 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt); 134 } 135 chk->sent = SCTP_DATAGRAM_RESEND; 136 chk->rec.data.doing_fast_retransmit = 0; 137 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) { 138 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU, 139 chk->whoTo->flight_size, 140 chk->book_size, 141 (uintptr_t) chk->whoTo, 142 chk->rec.data.TSN_seq); 143 } 144 /* Clear any time so NO RTT is being done */ 145 chk->do_rtt = 0; 146 } 147 } 148 } 149 150 #ifdef INET 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 = sctp_get_prev_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 sctp_pathmtu_adjustment(stcb, nxtsz); 214 } 215 if (tmr_stopped) 216 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 217 218 SCTP_TCB_UNLOCK(stcb); 219 } 220 221 #endif 222 223 void 224 sctp_notify(struct sctp_inpcb *inp, 225 struct ip *ip, 226 struct sctphdr *sh, 227 struct sockaddr *to, 228 struct sctp_tcb *stcb, 229 struct sctp_nets *net) 230 { 231 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 232 struct socket *so; 233 234 #endif 235 /* protection */ 236 int reason; 237 struct icmp *icmph; 238 239 240 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 241 (sh == NULL) || (to == NULL)) { 242 if (stcb) 243 SCTP_TCB_UNLOCK(stcb); 244 return; 245 } 246 /* First job is to verify the vtag matches what I would send */ 247 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 248 SCTP_TCB_UNLOCK(stcb); 249 return; 250 } 251 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 252 sizeof(struct ip))); 253 if (icmph->icmp_type != ICMP_UNREACH) { 254 /* We only care about unreachable */ 255 SCTP_TCB_UNLOCK(stcb); 256 return; 257 } 258 if ((icmph->icmp_code == ICMP_UNREACH_NET) || 259 (icmph->icmp_code == ICMP_UNREACH_HOST) || 260 (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) || 261 (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) || 262 (icmph->icmp_code == ICMP_UNREACH_ISOLATED) || 263 (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) || 264 (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) || 265 (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) { 266 267 /* 268 * Hmm reachablity problems we must examine closely. If its 269 * not reachable, we may have lost a network. Or if there is 270 * NO protocol at the other end named SCTP. well we consider 271 * it a OOTB abort. 272 */ 273 if (net->dest_state & SCTP_ADDR_REACHABLE) { 274 /* Ok that destination is NOT reachable */ 275 net->dest_state &= ~SCTP_ADDR_REACHABLE; 276 net->dest_state &= ~SCTP_ADDR_PF; 277 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, 278 stcb, SCTP_FAILED_THRESHOLD, 279 (void *)net, SCTP_SO_NOT_LOCKED); 280 } 281 SCTP_TCB_UNLOCK(stcb); 282 } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) || 283 (icmph->icmp_code == ICMP_UNREACH_PORT)) { 284 /* 285 * Here the peer is either playing tricks on us, including 286 * an address that belongs to someone who does not support 287 * SCTP OR was a userland implementation that shutdown and 288 * now is dead. In either case treat it like a OOTB abort 289 * with no TCB 290 */ 291 reason = SCTP_PEER_FAULTY; 292 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED); 293 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 294 so = SCTP_INP_SO(inp); 295 atomic_add_int(&stcb->asoc.refcnt, 1); 296 SCTP_TCB_UNLOCK(stcb); 297 SCTP_SOCKET_LOCK(so, 1); 298 SCTP_TCB_LOCK(stcb); 299 atomic_subtract_int(&stcb->asoc.refcnt, 1); 300 #endif 301 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2); 302 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 303 SCTP_SOCKET_UNLOCK(so, 1); 304 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */ 305 #endif 306 /* no need to unlock here, since the TCB is gone */ 307 } else { 308 SCTP_TCB_UNLOCK(stcb); 309 } 310 } 311 312 #ifdef INET 313 void 314 sctp_ctlinput(cmd, sa, vip) 315 int cmd; 316 struct sockaddr *sa; 317 void *vip; 318 { 319 struct ip *ip = vip; 320 struct sctphdr *sh; 321 uint32_t vrf_id; 322 323 /* FIX, for non-bsd is this right? */ 324 vrf_id = SCTP_DEFAULT_VRFID; 325 if (sa->sa_family != AF_INET || 326 ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) { 327 return; 328 } 329 if (PRC_IS_REDIRECT(cmd)) { 330 ip = 0; 331 } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) { 332 return; 333 } 334 if (ip) { 335 struct sctp_inpcb *inp = NULL; 336 struct sctp_tcb *stcb = NULL; 337 struct sctp_nets *net = NULL; 338 struct sockaddr_in to, from; 339 340 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2)); 341 bzero(&to, sizeof(to)); 342 bzero(&from, sizeof(from)); 343 from.sin_family = to.sin_family = AF_INET; 344 from.sin_len = to.sin_len = sizeof(to); 345 from.sin_port = sh->src_port; 346 from.sin_addr = ip->ip_src; 347 to.sin_port = sh->dest_port; 348 to.sin_addr = ip->ip_dst; 349 350 /* 351 * 'to' holds the dest of the packet that failed to be sent. 352 * 'from' holds our local endpoint address. Thus we reverse 353 * the to and the from in the lookup. 354 */ 355 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from, 356 (struct sockaddr *)&to, 357 &inp, &net, 1, vrf_id); 358 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) { 359 if (cmd != PRC_MSGSIZE) { 360 sctp_notify(inp, ip, sh, 361 (struct sockaddr *)&to, stcb, 362 net); 363 } else { 364 /* handle possible ICMP size messages */ 365 sctp_notify_mbuf(inp, stcb, net, ip, sh); 366 } 367 } else { 368 if ((stcb == NULL) && (inp != NULL)) { 369 /* reduce ref-count */ 370 SCTP_INP_WLOCK(inp); 371 SCTP_INP_DECR_REF(inp); 372 SCTP_INP_WUNLOCK(inp); 373 } 374 if (stcb) { 375 SCTP_TCB_UNLOCK(stcb); 376 } 377 } 378 } 379 return; 380 } 381 382 #endif 383 384 static int 385 sctp_getcred(SYSCTL_HANDLER_ARGS) 386 { 387 struct xucred xuc; 388 struct sockaddr_in addrs[2]; 389 struct sctp_inpcb *inp; 390 struct sctp_nets *net; 391 struct sctp_tcb *stcb; 392 int error; 393 uint32_t vrf_id; 394 395 /* FIX, for non-bsd is this right? */ 396 vrf_id = SCTP_DEFAULT_VRFID; 397 398 error = priv_check(req->td, PRIV_NETINET_GETCRED); 399 400 if (error) 401 return (error); 402 403 error = SYSCTL_IN(req, addrs, sizeof(addrs)); 404 if (error) 405 return (error); 406 407 stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]), 408 sintosa(&addrs[1]), 409 &inp, &net, 1, vrf_id); 410 if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) { 411 if ((inp != NULL) && (stcb == NULL)) { 412 /* reduce ref-count */ 413 SCTP_INP_WLOCK(inp); 414 SCTP_INP_DECR_REF(inp); 415 goto cred_can_cont; 416 } 417 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 418 error = ENOENT; 419 goto out; 420 } 421 SCTP_TCB_UNLOCK(stcb); 422 /* 423 * We use the write lock here, only since in the error leg we need 424 * it. If we used RLOCK, then we would have to 425 * wlock/decr/unlock/rlock. Which in theory could create a hole. 426 * Better to use higher wlock. 427 */ 428 SCTP_INP_WLOCK(inp); 429 cred_can_cont: 430 error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket); 431 if (error) { 432 SCTP_INP_WUNLOCK(inp); 433 goto out; 434 } 435 cru2x(inp->sctp_socket->so_cred, &xuc); 436 SCTP_INP_WUNLOCK(inp); 437 error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred)); 438 out: 439 return (error); 440 } 441 442 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW, 443 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection"); 444 445 446 #ifdef INET 447 static void 448 sctp_abort(struct socket *so) 449 { 450 struct sctp_inpcb *inp; 451 uint32_t flags; 452 453 inp = (struct sctp_inpcb *)so->so_pcb; 454 if (inp == 0) { 455 return; 456 } 457 sctp_must_try_again: 458 flags = inp->sctp_flags; 459 #ifdef SCTP_LOG_CLOSING 460 sctp_log_closing(inp, NULL, 17); 461 #endif 462 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 463 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 464 #ifdef SCTP_LOG_CLOSING 465 sctp_log_closing(inp, NULL, 16); 466 #endif 467 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 468 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 469 SOCK_LOCK(so); 470 SCTP_SB_CLEAR(so->so_snd); 471 /* 472 * same for the rcv ones, they are only here for the 473 * accounting/select. 474 */ 475 SCTP_SB_CLEAR(so->so_rcv); 476 477 /* Now null out the reference, we are completely detached. */ 478 so->so_pcb = NULL; 479 SOCK_UNLOCK(so); 480 } else { 481 flags = inp->sctp_flags; 482 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 483 goto sctp_must_try_again; 484 } 485 } 486 return; 487 } 488 489 static int 490 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED) 491 { 492 struct sctp_inpcb *inp; 493 struct inpcb *ip_inp; 494 int error; 495 uint32_t vrf_id = SCTP_DEFAULT_VRFID; 496 497 #ifdef IPSEC 498 uint32_t flags; 499 500 #endif 501 502 inp = (struct sctp_inpcb *)so->so_pcb; 503 if (inp != 0) { 504 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 505 return EINVAL; 506 } 507 if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { 508 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace)); 509 if (error) { 510 return error; 511 } 512 } 513 error = sctp_inpcb_alloc(so, vrf_id); 514 if (error) { 515 return error; 516 } 517 inp = (struct sctp_inpcb *)so->so_pcb; 518 SCTP_INP_WLOCK(inp); 519 inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */ 520 ip_inp = &inp->ip_inp.inp; 521 ip_inp->inp_vflag |= INP_IPV4; 522 ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl); 523 #ifdef IPSEC 524 error = ipsec_init_policy(so, &ip_inp->inp_sp); 525 #ifdef SCTP_LOG_CLOSING 526 sctp_log_closing(inp, NULL, 17); 527 #endif 528 if (error != 0) { 529 try_again: 530 flags = inp->sctp_flags; 531 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 532 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 533 #ifdef SCTP_LOG_CLOSING 534 sctp_log_closing(inp, NULL, 15); 535 #endif 536 SCTP_INP_WUNLOCK(inp); 537 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 538 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 539 } else { 540 flags = inp->sctp_flags; 541 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 542 goto try_again; 543 } else { 544 SCTP_INP_WUNLOCK(inp); 545 } 546 } 547 return error; 548 } 549 #endif /* IPSEC */ 550 SCTP_INP_WUNLOCK(inp); 551 return 0; 552 } 553 554 static int 555 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p) 556 { 557 struct sctp_inpcb *inp = NULL; 558 int error; 559 560 #ifdef INET 561 if (addr && addr->sa_family != AF_INET) { 562 /* must be a v4 address! */ 563 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 564 return EINVAL; 565 } 566 #endif /* INET6 */ 567 if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) { 568 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 569 return EINVAL; 570 } 571 inp = (struct sctp_inpcb *)so->so_pcb; 572 if (inp == 0) { 573 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 574 return EINVAL; 575 } 576 error = sctp_inpcb_bind(so, addr, NULL, p); 577 return error; 578 } 579 580 #endif 581 void 582 sctp_close(struct socket *so) 583 { 584 struct sctp_inpcb *inp; 585 uint32_t flags; 586 587 inp = (struct sctp_inpcb *)so->so_pcb; 588 if (inp == 0) 589 return; 590 591 /* 592 * Inform all the lower layer assoc that we are done. 593 */ 594 sctp_must_try_again: 595 flags = inp->sctp_flags; 596 #ifdef SCTP_LOG_CLOSING 597 sctp_log_closing(inp, NULL, 17); 598 #endif 599 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 600 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 601 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) || 602 (so->so_rcv.sb_cc > 0)) { 603 #ifdef SCTP_LOG_CLOSING 604 sctp_log_closing(inp, NULL, 13); 605 #endif 606 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 607 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 608 } else { 609 #ifdef SCTP_LOG_CLOSING 610 sctp_log_closing(inp, NULL, 14); 611 #endif 612 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE, 613 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 614 } 615 /* 616 * The socket is now detached, no matter what the state of 617 * the SCTP association. 618 */ 619 SOCK_LOCK(so); 620 SCTP_SB_CLEAR(so->so_snd); 621 /* 622 * same for the rcv ones, they are only here for the 623 * accounting/select. 624 */ 625 SCTP_SB_CLEAR(so->so_rcv); 626 627 /* Now null out the reference, we are completely detached. */ 628 so->so_pcb = NULL; 629 SOCK_UNLOCK(so); 630 } else { 631 flags = inp->sctp_flags; 632 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 633 goto sctp_must_try_again; 634 } 635 } 636 return; 637 } 638 639 640 int 641 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 642 struct mbuf *control, struct thread *p); 643 644 645 int 646 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 647 struct mbuf *control, struct thread *p) 648 { 649 struct sctp_inpcb *inp; 650 int error; 651 652 inp = (struct sctp_inpcb *)so->so_pcb; 653 if (inp == 0) { 654 if (control) { 655 sctp_m_freem(control); 656 control = NULL; 657 } 658 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 659 sctp_m_freem(m); 660 return EINVAL; 661 } 662 /* Got to have an to address if we are NOT a connected socket */ 663 if ((addr == NULL) && 664 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) || 665 (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE)) 666 ) { 667 goto connected_type; 668 } else if (addr == NULL) { 669 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 670 error = EDESTADDRREQ; 671 sctp_m_freem(m); 672 if (control) { 673 sctp_m_freem(control); 674 control = NULL; 675 } 676 return (error); 677 } 678 #ifdef INET6 679 if (addr->sa_family != AF_INET) { 680 /* must be a v4 address! */ 681 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 682 sctp_m_freem(m); 683 if (control) { 684 sctp_m_freem(control); 685 control = NULL; 686 } 687 error = EDESTADDRREQ; 688 return (error); 689 } 690 #endif /* INET6 */ 691 connected_type: 692 /* now what about control */ 693 if (control) { 694 if (inp->control) { 695 SCTP_PRINTF("huh? control set?\n"); 696 sctp_m_freem(inp->control); 697 inp->control = NULL; 698 } 699 inp->control = control; 700 } 701 /* Place the data */ 702 if (inp->pkt) { 703 SCTP_BUF_NEXT(inp->pkt_last) = m; 704 inp->pkt_last = m; 705 } else { 706 inp->pkt_last = inp->pkt = m; 707 } 708 if ( 709 /* FreeBSD uses a flag passed */ 710 ((flags & PRUS_MORETOCOME) == 0) 711 ) { 712 /* 713 * note with the current version this code will only be used 714 * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for 715 * re-defining sosend to use the sctp_sosend. One can 716 * optionally switch back to this code (by changing back the 717 * definitions) but this is not advisable. This code is used 718 * by FreeBSD when sending a file with sendfile() though. 719 */ 720 int ret; 721 722 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags); 723 inp->pkt = NULL; 724 inp->control = NULL; 725 return (ret); 726 } else { 727 return (0); 728 } 729 } 730 731 int 732 sctp_disconnect(struct socket *so) 733 { 734 struct sctp_inpcb *inp; 735 736 inp = (struct sctp_inpcb *)so->so_pcb; 737 if (inp == NULL) { 738 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 739 return (ENOTCONN); 740 } 741 SCTP_INP_RLOCK(inp); 742 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 743 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 744 if (LIST_EMPTY(&inp->sctp_asoc_list)) { 745 /* No connection */ 746 SCTP_INP_RUNLOCK(inp); 747 return (0); 748 } else { 749 struct sctp_association *asoc; 750 struct sctp_tcb *stcb; 751 752 stcb = LIST_FIRST(&inp->sctp_asoc_list); 753 if (stcb == NULL) { 754 SCTP_INP_RUNLOCK(inp); 755 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 756 return (EINVAL); 757 } 758 SCTP_TCB_LOCK(stcb); 759 asoc = &stcb->asoc; 760 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 761 /* We are about to be freed, out of here */ 762 SCTP_TCB_UNLOCK(stcb); 763 SCTP_INP_RUNLOCK(inp); 764 return (0); 765 } 766 if (((so->so_options & SO_LINGER) && 767 (so->so_linger == 0)) || 768 (so->so_rcv.sb_cc > 0)) { 769 if (SCTP_GET_STATE(asoc) != 770 SCTP_STATE_COOKIE_WAIT) { 771 /* Left with Data unread */ 772 struct mbuf *err; 773 774 err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA); 775 if (err) { 776 /* 777 * Fill in the user 778 * initiated abort 779 */ 780 struct sctp_paramhdr *ph; 781 782 ph = mtod(err, struct sctp_paramhdr *); 783 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr); 784 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT); 785 ph->param_length = htons(SCTP_BUF_LEN(err)); 786 } 787 #if defined(SCTP_PANIC_ON_ABORT) 788 panic("disconnect does an abort"); 789 #endif 790 sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED); 791 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 792 } 793 SCTP_INP_RUNLOCK(inp); 794 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 795 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 796 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 797 } 798 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3); 799 /* No unlock tcb assoc is gone */ 800 return (0); 801 } 802 if (TAILQ_EMPTY(&asoc->send_queue) && 803 TAILQ_EMPTY(&asoc->sent_queue) && 804 (asoc->stream_queue_cnt == 0)) { 805 /* there is nothing queued to send, so done */ 806 if (asoc->locked_on_sending) { 807 goto abort_anyway; 808 } 809 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) && 810 (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) { 811 /* only send SHUTDOWN 1st time thru */ 812 struct sctp_nets *netp; 813 814 if (stcb->asoc.alternate) { 815 netp = stcb->asoc.alternate; 816 } else { 817 netp = stcb->asoc.primary_destination; 818 } 819 sctp_stop_timers_for_shutdown(stcb); 820 sctp_send_shutdown(stcb, netp); 821 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 822 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 823 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 824 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 825 } 826 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 827 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 828 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 829 stcb->sctp_ep, stcb, netp); 830 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 831 stcb->sctp_ep, stcb, netp); 832 833 } 834 } else { 835 /* 836 * we still got (or just got) data to send, 837 * so set SHUTDOWN_PENDING 838 */ 839 /* 840 * XXX sockets draft says that SCTP_EOF 841 * should be sent with no data. currently, 842 * we will allow user data to be sent first 843 * and move to SHUTDOWN-PENDING 844 */ 845 struct sctp_nets *netp; 846 847 if (stcb->asoc.alternate) { 848 netp = stcb->asoc.alternate; 849 } else { 850 netp = stcb->asoc.primary_destination; 851 } 852 853 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 854 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 855 netp); 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 struct sctp_inpcb *inp; 937 938 inp = (struct sctp_inpcb *)so->so_pcb; 939 if (inp == NULL) { 940 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 941 return EINVAL; 942 } 943 SCTP_INP_RLOCK(inp); 944 /* For the 1 to many model this does nothing */ 945 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 946 SCTP_INP_RUNLOCK(inp); 947 return (0); 948 } 949 SCTP_INP_RUNLOCK(inp); 950 if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) { 951 /* 952 * First make sure the sb will be happy, we don't use these 953 * except maybe the count 954 */ 955 SCTP_INP_WLOCK(inp); 956 SCTP_INP_READ_LOCK(inp); 957 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ; 958 SCTP_INP_READ_UNLOCK(inp); 959 SCTP_INP_WUNLOCK(inp); 960 so->so_rcv.sb_cc = 0; 961 so->so_rcv.sb_mbcnt = 0; 962 so->so_rcv.sb_mb = NULL; 963 } 964 if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) { 965 /* 966 * First make sure the sb will be happy, we don't use these 967 * except maybe the count 968 */ 969 so->so_snd.sb_cc = 0; 970 so->so_snd.sb_mbcnt = 0; 971 so->so_snd.sb_mb = NULL; 972 973 } 974 return (0); 975 } 976 977 int 978 sctp_shutdown(struct socket *so) 979 { 980 struct sctp_inpcb *inp; 981 982 inp = (struct sctp_inpcb *)so->so_pcb; 983 if (inp == 0) { 984 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 985 return EINVAL; 986 } 987 SCTP_INP_RLOCK(inp); 988 /* For UDP model this is a invalid call */ 989 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 990 /* Restore the flags that the soshutdown took away. */ 991 SOCKBUF_LOCK(&so->so_rcv); 992 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; 993 SOCKBUF_UNLOCK(&so->so_rcv); 994 /* This proc will wakeup for read and do nothing (I hope) */ 995 SCTP_INP_RUNLOCK(inp); 996 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 997 return (EOPNOTSUPP); 998 } 999 /* 1000 * Ok if we reach here its the TCP model and it is either a SHUT_WR 1001 * or SHUT_RDWR. This means we put the shutdown flag against it. 1002 */ 1003 { 1004 struct sctp_tcb *stcb; 1005 struct sctp_association *asoc; 1006 1007 if ((so->so_state & 1008 (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) { 1009 SCTP_INP_RUNLOCK(inp); 1010 return (ENOTCONN); 1011 } 1012 socantsendmore(so); 1013 1014 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1015 if (stcb == NULL) { 1016 /* 1017 * Ok we hit the case that the shutdown call was 1018 * made after an abort or something. Nothing to do 1019 * now. 1020 */ 1021 SCTP_INP_RUNLOCK(inp); 1022 return (0); 1023 } 1024 SCTP_TCB_LOCK(stcb); 1025 asoc = &stcb->asoc; 1026 if (TAILQ_EMPTY(&asoc->send_queue) && 1027 TAILQ_EMPTY(&asoc->sent_queue) && 1028 (asoc->stream_queue_cnt == 0)) { 1029 if (asoc->locked_on_sending) { 1030 goto abort_anyway; 1031 } 1032 /* there is nothing queued to send, so I'm done... */ 1033 if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) { 1034 /* only send SHUTDOWN the first time through */ 1035 struct sctp_nets *netp; 1036 1037 if (stcb->asoc.alternate) { 1038 netp = stcb->asoc.alternate; 1039 } else { 1040 netp = stcb->asoc.primary_destination; 1041 } 1042 sctp_stop_timers_for_shutdown(stcb); 1043 sctp_send_shutdown(stcb, netp); 1044 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 1045 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 1046 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 1047 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 1048 } 1049 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 1050 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 1051 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 1052 stcb->sctp_ep, stcb, netp); 1053 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 1054 stcb->sctp_ep, stcb, netp); 1055 } 1056 } else { 1057 /* 1058 * we still got (or just got) data to send, so set 1059 * SHUTDOWN_PENDING 1060 */ 1061 struct sctp_nets *netp; 1062 1063 if (stcb->asoc.alternate) { 1064 netp = stcb->asoc.alternate; 1065 } else { 1066 netp = stcb->asoc.primary_destination; 1067 } 1068 1069 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 1070 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 1071 netp); 1072 1073 if (asoc->locked_on_sending) { 1074 /* Locked to send out the data */ 1075 struct sctp_stream_queue_pending *sp; 1076 1077 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 1078 if (sp == NULL) { 1079 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 1080 asoc->locked_on_sending->stream_no); 1081 } else { 1082 if ((sp->length == 0) && (sp->msg_is_complete == 0)) { 1083 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 1084 } 1085 } 1086 } 1087 if (TAILQ_EMPTY(&asoc->send_queue) && 1088 TAILQ_EMPTY(&asoc->sent_queue) && 1089 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 1090 struct mbuf *op_err; 1091 1092 abort_anyway: 1093 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 1094 0, M_DONTWAIT, 1, MT_DATA); 1095 if (op_err) { 1096 /* Fill in the user initiated abort */ 1097 struct sctp_paramhdr *ph; 1098 uint32_t *ippp; 1099 1100 SCTP_BUF_LEN(op_err) = 1101 sizeof(struct sctp_paramhdr) + sizeof(uint32_t); 1102 ph = mtod(op_err, 1103 struct sctp_paramhdr *); 1104 ph->param_type = htons( 1105 SCTP_CAUSE_USER_INITIATED_ABT); 1106 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 1107 ippp = (uint32_t *) (ph + 1); 1108 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1109 } 1110 #if defined(SCTP_PANIC_ON_ABORT) 1111 panic("shutdown does an abort"); 1112 #endif 1113 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6; 1114 sctp_abort_an_association(stcb->sctp_ep, stcb, 1115 SCTP_RESPONSE_TO_USER_REQ, 1116 op_err, SCTP_SO_LOCKED); 1117 goto skip_unlock; 1118 } else { 1119 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 1120 } 1121 } 1122 SCTP_TCB_UNLOCK(stcb); 1123 } 1124 skip_unlock: 1125 SCTP_INP_RUNLOCK(inp); 1126 return 0; 1127 } 1128 1129 /* 1130 * copies a "user" presentable address and removes embedded scope, etc. 1131 * returns 0 on success, 1 on error 1132 */ 1133 static uint32_t 1134 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa) 1135 { 1136 #ifdef INET6 1137 struct sockaddr_in6 lsa6; 1138 1139 sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa, 1140 &lsa6); 1141 #endif 1142 memcpy(ss, sa, sa->sa_len); 1143 return (0); 1144 } 1145 1146 1147 1148 /* 1149 * NOTE: assumes addr lock is held 1150 */ 1151 static size_t 1152 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp, 1153 struct sctp_tcb *stcb, 1154 size_t limit, 1155 struct sockaddr_storage *sas, 1156 uint32_t vrf_id) 1157 { 1158 struct sctp_ifn *sctp_ifn; 1159 struct sctp_ifa *sctp_ifa; 1160 int loopback_scope, ipv4_local_scope, local_scope, site_scope; 1161 size_t actual; 1162 int ipv4_addr_legal, ipv6_addr_legal; 1163 struct sctp_vrf *vrf; 1164 1165 actual = 0; 1166 if (limit <= 0) 1167 return (actual); 1168 1169 if (stcb) { 1170 /* Turn on all the appropriate scope */ 1171 loopback_scope = stcb->asoc.loopback_scope; 1172 ipv4_local_scope = stcb->asoc.ipv4_local_scope; 1173 local_scope = stcb->asoc.local_scope; 1174 site_scope = stcb->asoc.site_scope; 1175 } else { 1176 /* Turn on ALL scope, since we look at the EP */ 1177 loopback_scope = ipv4_local_scope = local_scope = 1178 site_scope = 1; 1179 } 1180 ipv4_addr_legal = ipv6_addr_legal = 0; 1181 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1182 ipv6_addr_legal = 1; 1183 if (SCTP_IPV6_V6ONLY(inp) == 0) { 1184 ipv4_addr_legal = 1; 1185 } 1186 } else { 1187 ipv4_addr_legal = 1; 1188 } 1189 vrf = sctp_find_vrf(vrf_id); 1190 if (vrf == NULL) { 1191 return (0); 1192 } 1193 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1194 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1195 if ((loopback_scope == 0) && 1196 SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) { 1197 /* Skip loopback if loopback_scope not set */ 1198 continue; 1199 } 1200 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1201 if (stcb) { 1202 /* 1203 * For the BOUND-ALL case, the list 1204 * associated with a TCB is Always 1205 * considered a reverse list.. i.e. 1206 * it lists addresses that are NOT 1207 * part of the association. If this 1208 * is one of those we must skip it. 1209 */ 1210 if (sctp_is_addr_restricted(stcb, 1211 sctp_ifa)) { 1212 continue; 1213 } 1214 } 1215 switch (sctp_ifa->address.sa.sa_family) { 1216 #ifdef INET 1217 case AF_INET: 1218 if (ipv4_addr_legal) { 1219 struct sockaddr_in *sin; 1220 1221 sin = (struct sockaddr_in *)&sctp_ifa->address.sa; 1222 if (sin->sin_addr.s_addr == 0) { 1223 /* 1224 * we skip 1225 * unspecifed 1226 * addresses 1227 */ 1228 continue; 1229 } 1230 if ((ipv4_local_scope == 0) && 1231 (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) { 1232 continue; 1233 } 1234 #ifdef INET6 1235 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) { 1236 in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas); 1237 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1238 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6)); 1239 actual += sizeof(struct sockaddr_in6); 1240 } else { 1241 #endif 1242 memcpy(sas, sin, sizeof(*sin)); 1243 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport; 1244 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin)); 1245 actual += sizeof(*sin); 1246 #ifdef INET6 1247 } 1248 #endif 1249 if (actual >= limit) { 1250 return (actual); 1251 } 1252 } else { 1253 continue; 1254 } 1255 break; 1256 #endif 1257 #ifdef INET6 1258 case AF_INET6: 1259 if (ipv6_addr_legal) { 1260 struct sockaddr_in6 *sin6; 1261 1262 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa; 1263 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 1264 /* 1265 * we skip 1266 * unspecifed 1267 * addresses 1268 */ 1269 continue; 1270 } 1271 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 1272 if (local_scope == 0) 1273 continue; 1274 if (sin6->sin6_scope_id == 0) { 1275 if (sa6_recoverscope(sin6) != 0) 1276 /* 1277 * 1278 * bad 1279 * 1280 * li 1281 * nk 1282 * 1283 * loc 1284 * al 1285 * 1286 * add 1287 * re 1288 * ss 1289 * */ 1290 continue; 1291 } 1292 } 1293 if ((site_scope == 0) && 1294 (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) { 1295 continue; 1296 } 1297 memcpy(sas, sin6, sizeof(*sin6)); 1298 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1299 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6)); 1300 actual += sizeof(*sin6); 1301 if (actual >= limit) { 1302 return (actual); 1303 } 1304 } else { 1305 continue; 1306 } 1307 break; 1308 #endif 1309 default: 1310 /* TSNH */ 1311 break; 1312 } 1313 } 1314 } 1315 } else { 1316 struct sctp_laddr *laddr; 1317 1318 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1319 if (stcb) { 1320 if (sctp_is_addr_restricted(stcb, laddr->ifa)) { 1321 continue; 1322 } 1323 } 1324 if (sctp_fill_user_address(sas, &laddr->ifa->address.sa)) 1325 continue; 1326 1327 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1328 sas = (struct sockaddr_storage *)((caddr_t)sas + 1329 laddr->ifa->address.sa.sa_len); 1330 actual += laddr->ifa->address.sa.sa_len; 1331 if (actual >= limit) { 1332 return (actual); 1333 } 1334 } 1335 } 1336 return (actual); 1337 } 1338 1339 static size_t 1340 sctp_fill_up_addresses(struct sctp_inpcb *inp, 1341 struct sctp_tcb *stcb, 1342 size_t limit, 1343 struct sockaddr_storage *sas) 1344 { 1345 size_t size = 0; 1346 1347 SCTP_IPI_ADDR_RLOCK(); 1348 /* fill up addresses for the endpoint's default vrf */ 1349 size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas, 1350 inp->def_vrf_id); 1351 SCTP_IPI_ADDR_RUNLOCK(); 1352 return (size); 1353 } 1354 1355 /* 1356 * NOTE: assumes addr lock is held 1357 */ 1358 static int 1359 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id) 1360 { 1361 int cnt = 0; 1362 struct sctp_vrf *vrf = NULL; 1363 1364 /* 1365 * In both sub-set bound an bound_all cases we return the MAXIMUM 1366 * number of addresses that you COULD get. In reality the sub-set 1367 * bound may have an exclusion list for a given TCB OR in the 1368 * bound-all case a TCB may NOT include the loopback or other 1369 * addresses as well. 1370 */ 1371 vrf = sctp_find_vrf(vrf_id); 1372 if (vrf == NULL) { 1373 return (0); 1374 } 1375 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1376 struct sctp_ifn *sctp_ifn; 1377 struct sctp_ifa *sctp_ifa; 1378 1379 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1380 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1381 /* Count them if they are the right type */ 1382 switch (sctp_ifa->address.sa.sa_family) { 1383 #ifdef INET 1384 case AF_INET: 1385 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1386 cnt += sizeof(struct sockaddr_in6); 1387 else 1388 cnt += sizeof(struct sockaddr_in); 1389 break; 1390 #endif 1391 #ifdef INET6 1392 case AF_INET6: 1393 cnt += sizeof(struct sockaddr_in6); 1394 break; 1395 #endif 1396 default: 1397 break; 1398 } 1399 } 1400 } 1401 } else { 1402 struct sctp_laddr *laddr; 1403 1404 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1405 switch (laddr->ifa->address.sa.sa_family) { 1406 #ifdef INET 1407 case AF_INET: 1408 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1409 cnt += sizeof(struct sockaddr_in6); 1410 else 1411 cnt += sizeof(struct sockaddr_in); 1412 break; 1413 #endif 1414 #ifdef INET6 1415 case AF_INET6: 1416 cnt += sizeof(struct sockaddr_in6); 1417 break; 1418 #endif 1419 default: 1420 break; 1421 } 1422 } 1423 } 1424 return (cnt); 1425 } 1426 1427 static int 1428 sctp_count_max_addresses(struct sctp_inpcb *inp) 1429 { 1430 int cnt = 0; 1431 1432 SCTP_IPI_ADDR_RLOCK(); 1433 /* count addresses for the endpoint's default VRF */ 1434 cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id); 1435 SCTP_IPI_ADDR_RUNLOCK(); 1436 return (cnt); 1437 } 1438 1439 static int 1440 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval, 1441 size_t optsize, void *p, int delay) 1442 { 1443 int error = 0; 1444 int creat_lock_on = 0; 1445 struct sctp_tcb *stcb = NULL; 1446 struct sockaddr *sa; 1447 int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr; 1448 uint32_t vrf_id; 1449 int bad_addresses = 0; 1450 sctp_assoc_t *a_id; 1451 1452 SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n"); 1453 1454 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 1455 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 1456 /* We are already connected AND the TCP model */ 1457 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 1458 return (EADDRINUSE); 1459 } 1460 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) && 1461 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) { 1462 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1463 return (EINVAL); 1464 } 1465 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 1466 SCTP_INP_RLOCK(inp); 1467 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1468 SCTP_INP_RUNLOCK(inp); 1469 } 1470 if (stcb) { 1471 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1472 return (EALREADY); 1473 } 1474 SCTP_INP_INCR_REF(inp); 1475 SCTP_ASOC_CREATE_LOCK(inp); 1476 creat_lock_on = 1; 1477 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 1478 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 1479 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 1480 error = EFAULT; 1481 goto out_now; 1482 } 1483 totaddrp = (int *)optval; 1484 totaddr = *totaddrp; 1485 sa = (struct sockaddr *)(totaddrp + 1); 1486 stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses); 1487 if ((stcb != NULL) || bad_addresses) { 1488 /* Already have or am bring up an association */ 1489 SCTP_ASOC_CREATE_UNLOCK(inp); 1490 creat_lock_on = 0; 1491 if (stcb) 1492 SCTP_TCB_UNLOCK(stcb); 1493 if (bad_addresses == 0) { 1494 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1495 error = EALREADY; 1496 } 1497 goto out_now; 1498 } 1499 #ifdef INET6 1500 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 1501 (num_v6 > 0)) { 1502 error = EINVAL; 1503 goto out_now; 1504 } 1505 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && 1506 (num_v4 > 0)) { 1507 struct in6pcb *inp6; 1508 1509 inp6 = (struct in6pcb *)inp; 1510 if (SCTP_IPV6_V6ONLY(inp6)) { 1511 /* 1512 * if IPV6_V6ONLY flag, ignore connections destined 1513 * to a v4 addr or v4-mapped addr 1514 */ 1515 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1516 error = EINVAL; 1517 goto out_now; 1518 } 1519 } 1520 #endif /* INET6 */ 1521 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 1522 SCTP_PCB_FLAGS_UNBOUND) { 1523 /* Bind a ephemeral port */ 1524 error = sctp_inpcb_bind(so, NULL, NULL, p); 1525 if (error) { 1526 goto out_now; 1527 } 1528 } 1529 /* FIX ME: do we want to pass in a vrf on the connect call? */ 1530 vrf_id = inp->def_vrf_id; 1531 1532 1533 /* We are GOOD to go */ 1534 stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id, 1535 (struct thread *)p 1536 ); 1537 if (stcb == NULL) { 1538 /* Gak! no memory */ 1539 goto out_now; 1540 } 1541 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 1542 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 1543 /* Set the connected flag so we can queue data */ 1544 soisconnecting(so); 1545 } 1546 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 1547 /* move to second address */ 1548 switch (sa->sa_family) { 1549 #ifdef INET 1550 case AF_INET: 1551 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in)); 1552 break; 1553 #endif 1554 #ifdef INET6 1555 case AF_INET6: 1556 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6)); 1557 break; 1558 #endif 1559 default: 1560 break; 1561 } 1562 1563 error = 0; 1564 sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error); 1565 /* Fill in the return id */ 1566 if (error) { 1567 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1568 goto out_now; 1569 } 1570 a_id = (sctp_assoc_t *) optval; 1571 *a_id = sctp_get_associd(stcb); 1572 1573 /* initialize authentication parameters for the assoc */ 1574 sctp_initialize_auth_params(inp, stcb); 1575 1576 if (delay) { 1577 /* doing delayed connection */ 1578 stcb->asoc.delayed_connection = 1; 1579 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination); 1580 } else { 1581 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 1582 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 1583 } 1584 SCTP_TCB_UNLOCK(stcb); 1585 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 1586 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 1587 /* Set the connected flag so we can queue data */ 1588 soisconnecting(so); 1589 } 1590 out_now: 1591 if (creat_lock_on) { 1592 SCTP_ASOC_CREATE_UNLOCK(inp); 1593 } 1594 SCTP_INP_DECR_REF(inp); 1595 return error; 1596 } 1597 1598 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \ 1599 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\ 1600 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \ 1601 SCTP_INP_RLOCK(inp); \ 1602 stcb = LIST_FIRST(&inp->sctp_asoc_list); \ 1603 if (stcb) { \ 1604 SCTP_TCB_LOCK(stcb); \ 1605 } \ 1606 SCTP_INP_RUNLOCK(inp); \ 1607 } else if (assoc_id > SCTP_ALL_ASSOC) { \ 1608 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \ 1609 if (stcb == NULL) { \ 1610 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \ 1611 error = ENOENT; \ 1612 break; \ 1613 } \ 1614 } else { \ 1615 stcb = NULL; \ 1616 } \ 1617 } 1618 1619 1620 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\ 1621 if (size < sizeof(type)) { \ 1622 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \ 1623 error = EINVAL; \ 1624 break; \ 1625 } else { \ 1626 destp = (type *)srcp; \ 1627 } \ 1628 } 1629 1630 static int 1631 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize, 1632 void *p) 1633 { 1634 struct sctp_inpcb *inp = NULL; 1635 int error, val = 0; 1636 struct sctp_tcb *stcb = NULL; 1637 1638 if (optval == NULL) { 1639 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1640 return (EINVAL); 1641 } 1642 inp = (struct sctp_inpcb *)so->so_pcb; 1643 if (inp == 0) { 1644 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1645 return EINVAL; 1646 } 1647 error = 0; 1648 1649 switch (optname) { 1650 case SCTP_NODELAY: 1651 case SCTP_AUTOCLOSE: 1652 case SCTP_EXPLICIT_EOR: 1653 case SCTP_AUTO_ASCONF: 1654 case SCTP_DISABLE_FRAGMENTS: 1655 case SCTP_I_WANT_MAPPED_V4_ADDR: 1656 case SCTP_USE_EXT_RCVINFO: 1657 SCTP_INP_RLOCK(inp); 1658 switch (optname) { 1659 case SCTP_DISABLE_FRAGMENTS: 1660 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT); 1661 break; 1662 case SCTP_I_WANT_MAPPED_V4_ADDR: 1663 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4); 1664 break; 1665 case SCTP_AUTO_ASCONF: 1666 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1667 /* only valid for bound all sockets */ 1668 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF); 1669 } else { 1670 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1671 error = EINVAL; 1672 goto flags_out; 1673 } 1674 break; 1675 case SCTP_EXPLICIT_EOR: 1676 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR); 1677 break; 1678 case SCTP_NODELAY: 1679 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY); 1680 break; 1681 case SCTP_USE_EXT_RCVINFO: 1682 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO); 1683 break; 1684 case SCTP_AUTOCLOSE: 1685 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE)) 1686 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time); 1687 else 1688 val = 0; 1689 break; 1690 1691 default: 1692 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 1693 error = ENOPROTOOPT; 1694 } /* end switch (sopt->sopt_name) */ 1695 if (*optsize < sizeof(val)) { 1696 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1697 error = EINVAL; 1698 } 1699 flags_out: 1700 SCTP_INP_RUNLOCK(inp); 1701 if (error == 0) { 1702 /* return the option value */ 1703 *(int *)optval = val; 1704 *optsize = sizeof(val); 1705 } 1706 break; 1707 case SCTP_GET_PACKET_LOG: 1708 { 1709 #ifdef SCTP_PACKET_LOGGING 1710 uint8_t *target; 1711 int ret; 1712 1713 SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize); 1714 ret = sctp_copy_out_packet_log(target, (int)*optsize); 1715 *optsize = ret; 1716 #else 1717 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1718 error = EOPNOTSUPP; 1719 #endif 1720 break; 1721 } 1722 case SCTP_REUSE_PORT: 1723 { 1724 uint32_t *value; 1725 1726 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) { 1727 /* Can't do this for a 1-m socket */ 1728 error = EINVAL; 1729 break; 1730 } 1731 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1732 *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE); 1733 *optsize = sizeof(uint32_t); 1734 break; 1735 } 1736 case SCTP_PARTIAL_DELIVERY_POINT: 1737 { 1738 uint32_t *value; 1739 1740 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1741 *value = inp->partial_delivery_point; 1742 *optsize = sizeof(uint32_t); 1743 break; 1744 } 1745 case SCTP_FRAGMENT_INTERLEAVE: 1746 { 1747 uint32_t *value; 1748 1749 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1750 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) { 1751 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) { 1752 *value = SCTP_FRAG_LEVEL_2; 1753 } else { 1754 *value = SCTP_FRAG_LEVEL_1; 1755 } 1756 } else { 1757 *value = SCTP_FRAG_LEVEL_0; 1758 } 1759 *optsize = sizeof(uint32_t); 1760 break; 1761 } 1762 case SCTP_CMT_ON_OFF: 1763 { 1764 struct sctp_assoc_value *av; 1765 1766 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1767 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1768 if (stcb) { 1769 av->assoc_value = stcb->asoc.sctp_cmt_on_off; 1770 SCTP_TCB_UNLOCK(stcb); 1771 } else { 1772 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 1773 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 1774 (av->assoc_id == SCTP_FUTURE_ASSOC)) { 1775 SCTP_INP_RLOCK(inp); 1776 av->assoc_value = inp->sctp_cmt_on_off; 1777 SCTP_INP_RUNLOCK(inp); 1778 } else { 1779 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1780 error = EINVAL; 1781 } 1782 } 1783 if (error == 0) { 1784 *optsize = sizeof(struct sctp_assoc_value); 1785 } 1786 break; 1787 } 1788 case SCTP_PLUGGABLE_CC: 1789 { 1790 struct sctp_assoc_value *av; 1791 1792 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1793 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1794 if (stcb) { 1795 av->assoc_value = stcb->asoc.congestion_control_module; 1796 SCTP_TCB_UNLOCK(stcb); 1797 } else { 1798 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 1799 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 1800 (av->assoc_id == SCTP_FUTURE_ASSOC)) { 1801 SCTP_INP_RLOCK(inp); 1802 av->assoc_value = inp->sctp_ep.sctp_default_cc_module; 1803 SCTP_INP_RUNLOCK(inp); 1804 } else { 1805 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1806 error = EINVAL; 1807 } 1808 } 1809 if (error == 0) { 1810 *optsize = sizeof(struct sctp_assoc_value); 1811 } 1812 break; 1813 } 1814 case SCTP_CC_OPTION: 1815 { 1816 struct sctp_cc_option *cc_opt; 1817 1818 SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize); 1819 SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id); 1820 if (stcb == NULL) { 1821 error = EINVAL; 1822 } else { 1823 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) { 1824 error = ENOTSUP; 1825 } else { 1826 error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt); 1827 *optsize = sizeof(struct sctp_cc_option); 1828 } 1829 SCTP_TCB_UNLOCK(stcb); 1830 } 1831 break; 1832 } 1833 case SCTP_PLUGGABLE_SS: 1834 { 1835 struct sctp_assoc_value *av; 1836 1837 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1838 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1839 if (stcb) { 1840 av->assoc_value = stcb->asoc.stream_scheduling_module; 1841 SCTP_TCB_UNLOCK(stcb); 1842 } else { 1843 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 1844 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 1845 (av->assoc_id == SCTP_FUTURE_ASSOC)) { 1846 SCTP_INP_RLOCK(inp); 1847 av->assoc_value = inp->sctp_ep.sctp_default_ss_module; 1848 SCTP_INP_RUNLOCK(inp); 1849 } else { 1850 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1851 error = EINVAL; 1852 } 1853 } 1854 if (error == 0) { 1855 *optsize = sizeof(struct sctp_assoc_value); 1856 } 1857 break; 1858 } 1859 case SCTP_SS_VALUE: 1860 { 1861 struct sctp_stream_value *av; 1862 1863 SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize); 1864 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1865 if (stcb) { 1866 if (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id], 1867 &av->stream_value) < 0) { 1868 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1869 error = EINVAL; 1870 } else { 1871 *optsize = sizeof(struct sctp_stream_value); 1872 } 1873 SCTP_TCB_UNLOCK(stcb); 1874 } else { 1875 /* 1876 * Can't get stream value without 1877 * association 1878 */ 1879 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1880 error = EINVAL; 1881 } 1882 break; 1883 } 1884 case SCTP_GET_ADDR_LEN: 1885 { 1886 struct sctp_assoc_value *av; 1887 1888 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1889 error = EINVAL; 1890 #ifdef INET 1891 if (av->assoc_value == AF_INET) { 1892 av->assoc_value = sizeof(struct sockaddr_in); 1893 error = 0; 1894 } 1895 #endif 1896 #ifdef INET6 1897 if (av->assoc_value == AF_INET6) { 1898 av->assoc_value = sizeof(struct sockaddr_in6); 1899 error = 0; 1900 } 1901 #endif 1902 if (error) { 1903 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1904 } else { 1905 *optsize = sizeof(struct sctp_assoc_value); 1906 } 1907 break; 1908 } 1909 case SCTP_GET_ASSOC_NUMBER: 1910 { 1911 uint32_t *value, cnt; 1912 1913 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1914 cnt = 0; 1915 SCTP_INP_RLOCK(inp); 1916 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1917 cnt++; 1918 } 1919 SCTP_INP_RUNLOCK(inp); 1920 *value = cnt; 1921 *optsize = sizeof(uint32_t); 1922 break; 1923 } 1924 case SCTP_GET_ASSOC_ID_LIST: 1925 { 1926 struct sctp_assoc_ids *ids; 1927 unsigned int at, limit; 1928 1929 SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize); 1930 at = 0; 1931 limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t); 1932 SCTP_INP_RLOCK(inp); 1933 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1934 if (at < limit) { 1935 ids->gaids_assoc_id[at++] = sctp_get_associd(stcb); 1936 } else { 1937 error = EINVAL; 1938 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1939 break; 1940 } 1941 } 1942 SCTP_INP_RUNLOCK(inp); 1943 if (error == 0) { 1944 ids->gaids_number_of_ids = at; 1945 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t)); 1946 } 1947 break; 1948 } 1949 case SCTP_CONTEXT: 1950 { 1951 struct sctp_assoc_value *av; 1952 1953 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1954 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1955 1956 if (stcb) { 1957 av->assoc_value = stcb->asoc.context; 1958 SCTP_TCB_UNLOCK(stcb); 1959 } else { 1960 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 1961 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 1962 (av->assoc_id == SCTP_FUTURE_ASSOC)) { 1963 SCTP_INP_RLOCK(inp); 1964 av->assoc_value = inp->sctp_context; 1965 SCTP_INP_RUNLOCK(inp); 1966 } else { 1967 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1968 error = EINVAL; 1969 } 1970 } 1971 if (error == 0) { 1972 *optsize = sizeof(struct sctp_assoc_value); 1973 } 1974 break; 1975 } 1976 case SCTP_VRF_ID: 1977 { 1978 uint32_t *default_vrfid; 1979 1980 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize); 1981 *default_vrfid = inp->def_vrf_id; 1982 *optsize = sizeof(uint32_t); 1983 break; 1984 } 1985 case SCTP_GET_ASOC_VRF: 1986 { 1987 struct sctp_assoc_value *id; 1988 1989 SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize); 1990 SCTP_FIND_STCB(inp, stcb, id->assoc_id); 1991 if (stcb == NULL) { 1992 error = EINVAL; 1993 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1994 } else { 1995 id->assoc_value = stcb->asoc.vrf_id; 1996 *optsize = sizeof(struct sctp_assoc_value); 1997 } 1998 break; 1999 } 2000 case SCTP_GET_VRF_IDS: 2001 { 2002 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2003 error = EOPNOTSUPP; 2004 break; 2005 } 2006 case SCTP_GET_NONCE_VALUES: 2007 { 2008 struct sctp_get_nonce_values *gnv; 2009 2010 SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize); 2011 SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id); 2012 2013 if (stcb) { 2014 gnv->gn_peers_tag = stcb->asoc.peer_vtag; 2015 gnv->gn_local_tag = stcb->asoc.my_vtag; 2016 SCTP_TCB_UNLOCK(stcb); 2017 *optsize = sizeof(struct sctp_get_nonce_values); 2018 } else { 2019 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2020 error = ENOTCONN; 2021 } 2022 break; 2023 } 2024 case SCTP_DELAYED_SACK: 2025 { 2026 struct sctp_sack_info *sack; 2027 2028 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize); 2029 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 2030 if (stcb) { 2031 sack->sack_delay = stcb->asoc.delayed_ack; 2032 sack->sack_freq = stcb->asoc.sack_freq; 2033 SCTP_TCB_UNLOCK(stcb); 2034 } else { 2035 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2036 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 2037 (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) { 2038 SCTP_INP_RLOCK(inp); 2039 sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]); 2040 sack->sack_freq = inp->sctp_ep.sctp_sack_freq; 2041 SCTP_INP_RUNLOCK(inp); 2042 } else { 2043 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2044 error = EINVAL; 2045 } 2046 } 2047 if (error == 0) { 2048 *optsize = sizeof(struct sctp_sack_info); 2049 } 2050 break; 2051 } 2052 case SCTP_GET_SNDBUF_USE: 2053 { 2054 struct sctp_sockstat *ss; 2055 2056 SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize); 2057 SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id); 2058 2059 if (stcb) { 2060 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size; 2061 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue + 2062 stcb->asoc.size_on_all_streams); 2063 SCTP_TCB_UNLOCK(stcb); 2064 *optsize = sizeof(struct sctp_sockstat); 2065 } else { 2066 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2067 error = ENOTCONN; 2068 } 2069 break; 2070 } 2071 case SCTP_MAX_BURST: 2072 { 2073 struct sctp_assoc_value *av; 2074 2075 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 2076 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2077 2078 if (stcb) { 2079 av->assoc_value = stcb->asoc.max_burst; 2080 SCTP_TCB_UNLOCK(stcb); 2081 } else { 2082 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2083 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 2084 (av->assoc_id == SCTP_FUTURE_ASSOC)) { 2085 SCTP_INP_RLOCK(inp); 2086 av->assoc_value = inp->sctp_ep.max_burst; 2087 SCTP_INP_RUNLOCK(inp); 2088 } else { 2089 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2090 error = EINVAL; 2091 } 2092 } 2093 if (error == 0) { 2094 *optsize = sizeof(struct sctp_assoc_value); 2095 } 2096 break; 2097 } 2098 case SCTP_MAXSEG: 2099 { 2100 struct sctp_assoc_value *av; 2101 int ovh; 2102 2103 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 2104 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2105 2106 if (stcb) { 2107 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc); 2108 SCTP_TCB_UNLOCK(stcb); 2109 } else { 2110 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2111 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 2112 (av->assoc_id == SCTP_FUTURE_ASSOC)) { 2113 SCTP_INP_RLOCK(inp); 2114 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2115 ovh = SCTP_MED_OVERHEAD; 2116 } else { 2117 ovh = SCTP_MED_V4_OVERHEAD; 2118 } 2119 if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT) 2120 av->assoc_value = 0; 2121 else 2122 av->assoc_value = inp->sctp_frag_point - ovh; 2123 SCTP_INP_RUNLOCK(inp); 2124 } else { 2125 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2126 error = EINVAL; 2127 } 2128 } 2129 if (error == 0) { 2130 *optsize = sizeof(struct sctp_assoc_value); 2131 } 2132 break; 2133 } 2134 case SCTP_GET_STAT_LOG: 2135 error = sctp_fill_stat_log(optval, optsize); 2136 break; 2137 case SCTP_EVENTS: 2138 { 2139 struct sctp_event_subscribe *events; 2140 2141 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize); 2142 memset(events, 0, sizeof(struct sctp_event_subscribe)); 2143 SCTP_INP_RLOCK(inp); 2144 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT)) 2145 events->sctp_data_io_event = 1; 2146 2147 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT)) 2148 events->sctp_association_event = 1; 2149 2150 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT)) 2151 events->sctp_address_event = 1; 2152 2153 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT)) 2154 events->sctp_send_failure_event = 1; 2155 2156 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR)) 2157 events->sctp_peer_error_event = 1; 2158 2159 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT)) 2160 events->sctp_shutdown_event = 1; 2161 2162 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT)) 2163 events->sctp_partial_delivery_event = 1; 2164 2165 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT)) 2166 events->sctp_adaptation_layer_event = 1; 2167 2168 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT)) 2169 events->sctp_authentication_event = 1; 2170 2171 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT)) 2172 events->sctp_sender_dry_event = 1; 2173 2174 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT)) 2175 events->sctp_stream_reset_event = 1; 2176 SCTP_INP_RUNLOCK(inp); 2177 *optsize = sizeof(struct sctp_event_subscribe); 2178 break; 2179 } 2180 case SCTP_ADAPTATION_LAYER: 2181 { 2182 uint32_t *value; 2183 2184 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2185 2186 SCTP_INP_RLOCK(inp); 2187 *value = inp->sctp_ep.adaptation_layer_indicator; 2188 SCTP_INP_RUNLOCK(inp); 2189 *optsize = sizeof(uint32_t); 2190 break; 2191 } 2192 case SCTP_SET_INITIAL_DBG_SEQ: 2193 { 2194 uint32_t *value; 2195 2196 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2197 SCTP_INP_RLOCK(inp); 2198 *value = inp->sctp_ep.initial_sequence_debug; 2199 SCTP_INP_RUNLOCK(inp); 2200 *optsize = sizeof(uint32_t); 2201 break; 2202 } 2203 case SCTP_GET_LOCAL_ADDR_SIZE: 2204 { 2205 uint32_t *value; 2206 2207 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2208 SCTP_INP_RLOCK(inp); 2209 *value = sctp_count_max_addresses(inp); 2210 SCTP_INP_RUNLOCK(inp); 2211 *optsize = sizeof(uint32_t); 2212 break; 2213 } 2214 case SCTP_GET_REMOTE_ADDR_SIZE: 2215 { 2216 uint32_t *value; 2217 size_t size; 2218 struct sctp_nets *net; 2219 2220 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2221 /* FIXME MT: change to sctp_assoc_value? */ 2222 SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value); 2223 2224 if (stcb) { 2225 size = 0; 2226 /* Count the sizes */ 2227 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2228 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) { 2229 size += sizeof(struct sockaddr_in6); 2230 } else { 2231 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) { 2232 #ifdef INET 2233 case AF_INET: 2234 size += sizeof(struct sockaddr_in); 2235 break; 2236 #endif 2237 #ifdef INET6 2238 case AF_INET6: 2239 size += sizeof(struct sockaddr_in6); 2240 break; 2241 #endif 2242 default: 2243 break; 2244 } 2245 } 2246 } 2247 SCTP_TCB_UNLOCK(stcb); 2248 *value = (uint32_t) size; 2249 *optsize = sizeof(uint32_t); 2250 } else { 2251 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2252 error = ENOTCONN; 2253 } 2254 break; 2255 } 2256 case SCTP_GET_PEER_ADDRESSES: 2257 /* 2258 * Get the address information, an array is passed in to 2259 * fill up we pack it. 2260 */ 2261 { 2262 size_t cpsz, left; 2263 struct sockaddr_storage *sas; 2264 struct sctp_nets *net; 2265 struct sctp_getaddresses *saddr; 2266 2267 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2268 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2269 2270 if (stcb) { 2271 left = (*optsize) - sizeof(struct sctp_getaddresses); 2272 *optsize = sizeof(struct sctp_getaddresses); 2273 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2274 2275 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2276 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) { 2277 cpsz = sizeof(struct sockaddr_in6); 2278 } else { 2279 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) { 2280 #ifdef INET 2281 case AF_INET: 2282 cpsz = sizeof(struct sockaddr_in); 2283 break; 2284 #endif 2285 #ifdef INET6 2286 case AF_INET6: 2287 cpsz = sizeof(struct sockaddr_in6); 2288 break; 2289 #endif 2290 default: 2291 cpsz = 0; 2292 break; 2293 } 2294 } 2295 if (cpsz == 0) { 2296 break; 2297 } 2298 if (left < cpsz) { 2299 /* not enough room. */ 2300 break; 2301 } 2302 #if defined(INET) && defined(INET6) 2303 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) && 2304 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) { 2305 /* Must map the address */ 2306 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr, 2307 (struct sockaddr_in6 *)sas); 2308 } else { 2309 #endif 2310 memcpy(sas, &net->ro._l_addr, cpsz); 2311 #if defined(INET) && defined(INET6) 2312 } 2313 #endif 2314 ((struct sockaddr_in *)sas)->sin_port = stcb->rport; 2315 2316 sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz); 2317 left -= cpsz; 2318 *optsize += cpsz; 2319 } 2320 SCTP_TCB_UNLOCK(stcb); 2321 } else { 2322 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2323 error = ENOENT; 2324 } 2325 break; 2326 } 2327 case SCTP_GET_LOCAL_ADDRESSES: 2328 { 2329 size_t limit, actual; 2330 struct sockaddr_storage *sas; 2331 struct sctp_getaddresses *saddr; 2332 2333 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2334 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2335 2336 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2337 limit = *optsize - sizeof(sctp_assoc_t); 2338 actual = sctp_fill_up_addresses(inp, stcb, limit, sas); 2339 if (stcb) { 2340 SCTP_TCB_UNLOCK(stcb); 2341 } 2342 *optsize = sizeof(struct sockaddr_storage) + actual; 2343 break; 2344 } 2345 case SCTP_PEER_ADDR_PARAMS: 2346 { 2347 struct sctp_paddrparams *paddrp; 2348 struct sctp_nets *net; 2349 2350 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize); 2351 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 2352 2353 net = NULL; 2354 if (stcb) { 2355 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 2356 } else { 2357 /* 2358 * We increment here since 2359 * sctp_findassociation_ep_addr() wil do a 2360 * decrement if it finds the stcb as long as 2361 * the locked tcb (last argument) is NOT a 2362 * TCB.. aka NULL. 2363 */ 2364 SCTP_INP_INCR_REF(inp); 2365 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL); 2366 if (stcb == NULL) { 2367 SCTP_INP_DECR_REF(inp); 2368 } 2369 } 2370 if (stcb && (net == NULL)) { 2371 struct sockaddr *sa; 2372 2373 sa = (struct sockaddr *)&paddrp->spp_address; 2374 #ifdef INET 2375 if (sa->sa_family == AF_INET) { 2376 struct sockaddr_in *sin; 2377 2378 sin = (struct sockaddr_in *)sa; 2379 if (sin->sin_addr.s_addr) { 2380 error = EINVAL; 2381 SCTP_TCB_UNLOCK(stcb); 2382 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2383 break; 2384 } 2385 } else 2386 #endif 2387 #ifdef INET6 2388 if (sa->sa_family == AF_INET6) { 2389 struct sockaddr_in6 *sin6; 2390 2391 sin6 = (struct sockaddr_in6 *)sa; 2392 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 2393 error = EINVAL; 2394 SCTP_TCB_UNLOCK(stcb); 2395 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2396 break; 2397 } 2398 } else 2399 #endif 2400 { 2401 error = EAFNOSUPPORT; 2402 SCTP_TCB_UNLOCK(stcb); 2403 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2404 break; 2405 } 2406 } 2407 if (stcb) { 2408 /* Applies to the specific association */ 2409 paddrp->spp_flags = 0; 2410 if (net) { 2411 int ovh; 2412 2413 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2414 ovh = SCTP_MED_OVERHEAD; 2415 } else { 2416 ovh = SCTP_MED_V4_OVERHEAD; 2417 } 2418 2419 paddrp->spp_hbinterval = net->heart_beat_delay; 2420 paddrp->spp_pathmaxrxt = net->failure_threshold; 2421 paddrp->spp_pathmtu = net->mtu - ovh; 2422 /* get flags for HB */ 2423 if (net->dest_state & SCTP_ADDR_NOHB) { 2424 paddrp->spp_flags |= SPP_HB_DISABLE; 2425 } else { 2426 paddrp->spp_flags |= SPP_HB_ENABLE; 2427 } 2428 /* get flags for PMTU */ 2429 if (net->dest_state & SCTP_ADDR_NO_PMTUD) { 2430 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2431 } else { 2432 paddrp->spp_flags |= SPP_PMTUD_DISABLE; 2433 } 2434 if (net->dscp & 0x01) { 2435 paddrp->spp_dscp = net->dscp & 0xfc; 2436 paddrp->spp_flags |= SPP_DSCP; 2437 } 2438 #ifdef INET6 2439 if ((net->ro._l_addr.sa.sa_family == AF_INET6) && 2440 (net->flowlabel & 0x80000000)) { 2441 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff; 2442 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2443 } 2444 #endif 2445 } else { 2446 /* 2447 * No destination so return default 2448 * value 2449 */ 2450 paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure; 2451 paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc); 2452 if (stcb->asoc.default_dscp & 0x01) { 2453 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc; 2454 paddrp->spp_flags |= SPP_DSCP; 2455 } 2456 #ifdef INET6 2457 if (stcb->asoc.default_flowlabel & 0x80000000) { 2458 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff; 2459 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2460 } 2461 #endif 2462 /* default settings should be these */ 2463 if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) { 2464 paddrp->spp_flags |= SPP_HB_DISABLE; 2465 } else { 2466 paddrp->spp_flags |= SPP_HB_ENABLE; 2467 } 2468 if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) { 2469 paddrp->spp_flags |= SPP_PMTUD_DISABLE; 2470 } else { 2471 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2472 } 2473 paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay; 2474 } 2475 paddrp->spp_assoc_id = sctp_get_associd(stcb); 2476 SCTP_TCB_UNLOCK(stcb); 2477 } else { 2478 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2479 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 2480 (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) { 2481 /* Use endpoint defaults */ 2482 SCTP_INP_RLOCK(inp); 2483 paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure; 2484 paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]); 2485 paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC; 2486 /* get inp's default */ 2487 if (inp->sctp_ep.default_dscp & 0x01) { 2488 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc; 2489 paddrp->spp_flags |= SPP_DSCP; 2490 } 2491 #ifdef INET6 2492 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && 2493 (inp->sctp_ep.default_flowlabel & 0x80000000)) { 2494 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff; 2495 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2496 } 2497 #endif 2498 /* can't return this */ 2499 paddrp->spp_pathmtu = 0; 2500 2501 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) { 2502 paddrp->spp_flags |= SPP_HB_ENABLE; 2503 } else { 2504 paddrp->spp_flags |= SPP_HB_DISABLE; 2505 } 2506 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) { 2507 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2508 } else { 2509 paddrp->spp_flags |= SPP_PMTUD_DISABLE; 2510 } 2511 SCTP_INP_RUNLOCK(inp); 2512 } else { 2513 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2514 error = EINVAL; 2515 } 2516 } 2517 if (error == 0) { 2518 *optsize = sizeof(struct sctp_paddrparams); 2519 } 2520 break; 2521 } 2522 case SCTP_GET_PEER_ADDR_INFO: 2523 { 2524 struct sctp_paddrinfo *paddri; 2525 struct sctp_nets *net; 2526 2527 SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize); 2528 SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id); 2529 2530 net = NULL; 2531 if (stcb) { 2532 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address); 2533 } else { 2534 /* 2535 * We increment here since 2536 * sctp_findassociation_ep_addr() wil do a 2537 * decrement if it finds the stcb as long as 2538 * the locked tcb (last argument) is NOT a 2539 * TCB.. aka NULL. 2540 */ 2541 SCTP_INP_INCR_REF(inp); 2542 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL); 2543 if (stcb == NULL) { 2544 SCTP_INP_DECR_REF(inp); 2545 } 2546 } 2547 2548 if ((stcb) && (net)) { 2549 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) { 2550 /* It's unconfirmed */ 2551 paddri->spinfo_state = SCTP_UNCONFIRMED; 2552 } else if (net->dest_state & SCTP_ADDR_REACHABLE) { 2553 /* It's active */ 2554 paddri->spinfo_state = SCTP_ACTIVE; 2555 } else { 2556 /* It's inactive */ 2557 paddri->spinfo_state = SCTP_INACTIVE; 2558 } 2559 paddri->spinfo_cwnd = net->cwnd; 2560 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT; 2561 paddri->spinfo_rto = net->RTO; 2562 paddri->spinfo_assoc_id = sctp_get_associd(stcb); 2563 paddri->spinfo_mtu = net->mtu; 2564 SCTP_TCB_UNLOCK(stcb); 2565 *optsize = sizeof(struct sctp_paddrinfo); 2566 } else { 2567 if (stcb) { 2568 SCTP_TCB_UNLOCK(stcb); 2569 } 2570 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2571 error = ENOENT; 2572 } 2573 break; 2574 } 2575 case SCTP_PCB_STATUS: 2576 { 2577 struct sctp_pcbinfo *spcb; 2578 2579 SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize); 2580 sctp_fill_pcbinfo(spcb); 2581 *optsize = sizeof(struct sctp_pcbinfo); 2582 break; 2583 } 2584 case SCTP_STATUS: 2585 { 2586 struct sctp_nets *net; 2587 struct sctp_status *sstat; 2588 2589 SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize); 2590 SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id); 2591 2592 if (stcb == NULL) { 2593 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2594 error = EINVAL; 2595 break; 2596 } 2597 /* 2598 * I think passing the state is fine since 2599 * sctp_constants.h will be available to the user 2600 * land. 2601 */ 2602 sstat->sstat_state = stcb->asoc.state; 2603 sstat->sstat_assoc_id = sctp_get_associd(stcb); 2604 sstat->sstat_rwnd = stcb->asoc.peers_rwnd; 2605 sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt; 2606 /* 2607 * We can't include chunks that have been passed to 2608 * the socket layer. Only things in queue. 2609 */ 2610 sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue + 2611 stcb->asoc.cnt_on_all_streams); 2612 2613 2614 sstat->sstat_instrms = stcb->asoc.streamincnt; 2615 sstat->sstat_outstrms = stcb->asoc.streamoutcnt; 2616 sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc); 2617 memcpy(&sstat->sstat_primary.spinfo_address, 2618 &stcb->asoc.primary_destination->ro._l_addr, 2619 ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len); 2620 net = stcb->asoc.primary_destination; 2621 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport; 2622 /* 2623 * Again the user can get info from sctp_constants.h 2624 * for what the state of the network is. 2625 */ 2626 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) { 2627 /* It's unconfirmed */ 2628 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED; 2629 } else if (net->dest_state & SCTP_ADDR_REACHABLE) { 2630 /* It's active */ 2631 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE; 2632 } else { 2633 /* It's inactive */ 2634 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE; 2635 } 2636 sstat->sstat_primary.spinfo_cwnd = net->cwnd; 2637 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT; 2638 sstat->sstat_primary.spinfo_rto = net->RTO; 2639 sstat->sstat_primary.spinfo_mtu = net->mtu; 2640 sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb); 2641 SCTP_TCB_UNLOCK(stcb); 2642 *optsize = sizeof(struct sctp_status); 2643 break; 2644 } 2645 case SCTP_RTOINFO: 2646 { 2647 struct sctp_rtoinfo *srto; 2648 2649 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize); 2650 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 2651 2652 if (stcb) { 2653 srto->srto_initial = stcb->asoc.initial_rto; 2654 srto->srto_max = stcb->asoc.maxrto; 2655 srto->srto_min = stcb->asoc.minrto; 2656 SCTP_TCB_UNLOCK(stcb); 2657 } else { 2658 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2659 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 2660 (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) { 2661 SCTP_INP_RLOCK(inp); 2662 srto->srto_initial = inp->sctp_ep.initial_rto; 2663 srto->srto_max = inp->sctp_ep.sctp_maxrto; 2664 srto->srto_min = inp->sctp_ep.sctp_minrto; 2665 SCTP_INP_RUNLOCK(inp); 2666 } else { 2667 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2668 error = EINVAL; 2669 } 2670 } 2671 if (error == 0) { 2672 *optsize = sizeof(struct sctp_rtoinfo); 2673 } 2674 break; 2675 } 2676 case SCTP_TIMEOUTS: 2677 { 2678 struct sctp_timeouts *stimo; 2679 2680 SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize); 2681 SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id); 2682 2683 if (stcb) { 2684 stimo->stimo_init = stcb->asoc.timoinit; 2685 stimo->stimo_data = stcb->asoc.timodata; 2686 stimo->stimo_sack = stcb->asoc.timosack; 2687 stimo->stimo_shutdown = stcb->asoc.timoshutdown; 2688 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat; 2689 stimo->stimo_cookie = stcb->asoc.timocookie; 2690 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack; 2691 SCTP_TCB_UNLOCK(stcb); 2692 *optsize = sizeof(struct sctp_timeouts); 2693 } else { 2694 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2695 error = EINVAL; 2696 } 2697 break; 2698 } 2699 case SCTP_ASSOCINFO: 2700 { 2701 struct sctp_assocparams *sasoc; 2702 2703 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize); 2704 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 2705 2706 if (stcb) { 2707 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life); 2708 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times; 2709 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 2710 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd; 2711 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd; 2712 SCTP_TCB_UNLOCK(stcb); 2713 } else { 2714 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2715 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 2716 (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) { 2717 SCTP_INP_RLOCK(inp); 2718 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life); 2719 sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times; 2720 sasoc->sasoc_number_peer_destinations = 0; 2721 sasoc->sasoc_peer_rwnd = 0; 2722 sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv); 2723 SCTP_INP_RUNLOCK(inp); 2724 } else { 2725 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2726 error = EINVAL; 2727 } 2728 } 2729 if (error == 0) { 2730 *optsize = sizeof(struct sctp_assocparams); 2731 } 2732 break; 2733 } 2734 case SCTP_DEFAULT_SEND_PARAM: 2735 { 2736 struct sctp_sndrcvinfo *s_info; 2737 2738 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize); 2739 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 2740 2741 if (stcb) { 2742 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send)); 2743 SCTP_TCB_UNLOCK(stcb); 2744 } else { 2745 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2746 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 2747 (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) { 2748 SCTP_INP_RLOCK(inp); 2749 memcpy(s_info, &inp->def_send, sizeof(inp->def_send)); 2750 SCTP_INP_RUNLOCK(inp); 2751 } else { 2752 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2753 error = EINVAL; 2754 } 2755 } 2756 if (error == 0) { 2757 *optsize = sizeof(struct sctp_sndrcvinfo); 2758 } 2759 break; 2760 } 2761 case SCTP_INITMSG: 2762 { 2763 struct sctp_initmsg *sinit; 2764 2765 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize); 2766 SCTP_INP_RLOCK(inp); 2767 sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count; 2768 sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome; 2769 sinit->sinit_max_attempts = inp->sctp_ep.max_init_times; 2770 sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max; 2771 SCTP_INP_RUNLOCK(inp); 2772 *optsize = sizeof(struct sctp_initmsg); 2773 break; 2774 } 2775 case SCTP_PRIMARY_ADDR: 2776 /* we allow a "get" operation on this */ 2777 { 2778 struct sctp_setprim *ssp; 2779 2780 SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize); 2781 SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id); 2782 2783 if (stcb) { 2784 /* simply copy out the sockaddr_storage... */ 2785 int len; 2786 2787 len = *optsize; 2788 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len) 2789 len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len; 2790 2791 memcpy(&ssp->ssp_addr, 2792 &stcb->asoc.primary_destination->ro._l_addr, 2793 len); 2794 SCTP_TCB_UNLOCK(stcb); 2795 *optsize = sizeof(struct sctp_setprim); 2796 } else { 2797 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2798 error = EINVAL; 2799 } 2800 break; 2801 } 2802 case SCTP_HMAC_IDENT: 2803 { 2804 struct sctp_hmacalgo *shmac; 2805 sctp_hmaclist_t *hmaclist; 2806 uint32_t size; 2807 int i; 2808 2809 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize); 2810 2811 SCTP_INP_RLOCK(inp); 2812 hmaclist = inp->sctp_ep.local_hmacs; 2813 if (hmaclist == NULL) { 2814 /* no HMACs to return */ 2815 *optsize = sizeof(*shmac); 2816 SCTP_INP_RUNLOCK(inp); 2817 break; 2818 } 2819 /* is there room for all of the hmac ids? */ 2820 size = sizeof(*shmac) + (hmaclist->num_algo * 2821 sizeof(shmac->shmac_idents[0])); 2822 if ((size_t)(*optsize) < size) { 2823 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2824 error = EINVAL; 2825 SCTP_INP_RUNLOCK(inp); 2826 break; 2827 } 2828 /* copy in the list */ 2829 shmac->shmac_number_of_idents = hmaclist->num_algo; 2830 for (i = 0; i < hmaclist->num_algo; i++) { 2831 shmac->shmac_idents[i] = hmaclist->hmac[i]; 2832 } 2833 SCTP_INP_RUNLOCK(inp); 2834 *optsize = size; 2835 break; 2836 } 2837 case SCTP_AUTH_ACTIVE_KEY: 2838 { 2839 struct sctp_authkeyid *scact; 2840 2841 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize); 2842 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 2843 2844 if (stcb) { 2845 /* get the active key on the assoc */ 2846 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid; 2847 SCTP_TCB_UNLOCK(stcb); 2848 } else { 2849 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2850 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 2851 (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) { 2852 /* get the endpoint active key */ 2853 SCTP_INP_RLOCK(inp); 2854 scact->scact_keynumber = inp->sctp_ep.default_keyid; 2855 SCTP_INP_RUNLOCK(inp); 2856 } else { 2857 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2858 error = EINVAL; 2859 } 2860 } 2861 if (error == 0) { 2862 *optsize = sizeof(struct sctp_authkeyid); 2863 } 2864 break; 2865 } 2866 case SCTP_LOCAL_AUTH_CHUNKS: 2867 { 2868 struct sctp_authchunks *sac; 2869 sctp_auth_chklist_t *chklist = NULL; 2870 size_t size = 0; 2871 2872 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2873 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2874 2875 if (stcb) { 2876 /* get off the assoc */ 2877 chklist = stcb->asoc.local_auth_chunks; 2878 /* is there enough space? */ 2879 size = sctp_auth_get_chklist_size(chklist); 2880 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2881 error = EINVAL; 2882 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2883 } else { 2884 /* copy in the chunks */ 2885 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2886 *optsize = sizeof(struct sctp_authchunks) + size; 2887 } 2888 SCTP_TCB_UNLOCK(stcb); 2889 } else { 2890 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2891 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 2892 (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) { 2893 /* get off the endpoint */ 2894 SCTP_INP_RLOCK(inp); 2895 chklist = inp->sctp_ep.local_auth_chunks; 2896 /* is there enough space? */ 2897 size = sctp_auth_get_chklist_size(chklist); 2898 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2899 error = EINVAL; 2900 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2901 } else { 2902 /* copy in the chunks */ 2903 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2904 *optsize = sizeof(struct sctp_authchunks) + size; 2905 } 2906 SCTP_INP_RUNLOCK(inp); 2907 } else { 2908 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2909 error = EINVAL; 2910 } 2911 } 2912 break; 2913 } 2914 case SCTP_PEER_AUTH_CHUNKS: 2915 { 2916 struct sctp_authchunks *sac; 2917 sctp_auth_chklist_t *chklist = NULL; 2918 size_t size = 0; 2919 2920 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2921 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2922 2923 if (stcb) { 2924 /* get off the assoc */ 2925 chklist = stcb->asoc.peer_auth_chunks; 2926 /* is there enough space? */ 2927 size = sctp_auth_get_chklist_size(chklist); 2928 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2929 error = EINVAL; 2930 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2931 } else { 2932 /* copy in the chunks */ 2933 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2934 *optsize = sizeof(struct sctp_authchunks) + size; 2935 } 2936 SCTP_TCB_UNLOCK(stcb); 2937 } else { 2938 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2939 error = ENOENT; 2940 } 2941 break; 2942 } 2943 case SCTP_EVENT: 2944 { 2945 struct sctp_event *event; 2946 uint32_t event_type; 2947 2948 SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize); 2949 SCTP_FIND_STCB(inp, stcb, event->se_assoc_id); 2950 2951 switch (event->se_type) { 2952 case SCTP_ASSOC_CHANGE: 2953 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT; 2954 break; 2955 case SCTP_PEER_ADDR_CHANGE: 2956 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT; 2957 break; 2958 case SCTP_REMOTE_ERROR: 2959 event_type = SCTP_PCB_FLAGS_RECVPEERERR; 2960 break; 2961 case SCTP_SEND_FAILED: 2962 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT; 2963 break; 2964 case SCTP_SHUTDOWN_EVENT: 2965 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT; 2966 break; 2967 case SCTP_ADAPTATION_INDICATION: 2968 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT; 2969 break; 2970 case SCTP_PARTIAL_DELIVERY_EVENT: 2971 event_type = SCTP_PCB_FLAGS_PDAPIEVNT; 2972 break; 2973 case SCTP_AUTHENTICATION_EVENT: 2974 event_type = SCTP_PCB_FLAGS_AUTHEVNT; 2975 break; 2976 case SCTP_STREAM_RESET_EVENT: 2977 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT; 2978 break; 2979 case SCTP_SENDER_DRY_EVENT: 2980 event_type = SCTP_PCB_FLAGS_DRYEVNT; 2981 break; 2982 case SCTP_NOTIFICATIONS_STOPPED_EVENT: 2983 event_type = 0; 2984 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP); 2985 error = ENOTSUP; 2986 break; 2987 default: 2988 event_type = 0; 2989 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2990 error = EINVAL; 2991 break; 2992 } 2993 if (event_type > 0) { 2994 if (stcb) { 2995 event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type); 2996 SCTP_TCB_UNLOCK(stcb); 2997 } else { 2998 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2999 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 3000 (event->se_assoc_id == SCTP_FUTURE_ASSOC)) { 3001 SCTP_INP_RLOCK(inp); 3002 event->se_on = sctp_is_feature_on(inp, event_type); 3003 SCTP_INP_RUNLOCK(inp); 3004 } else { 3005 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3006 error = EINVAL; 3007 } 3008 } 3009 } 3010 if (error == 0) { 3011 *optsize = sizeof(struct sctp_event); 3012 } 3013 break; 3014 } 3015 case SCTP_RECVRCVINFO: 3016 { 3017 int onoff; 3018 3019 if (*optsize < sizeof(int)) { 3020 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3021 error = EINVAL; 3022 } else { 3023 SCTP_INP_RUNLOCK(inp); 3024 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO); 3025 SCTP_INP_RUNLOCK(inp); 3026 } 3027 if (error == 0) { 3028 /* return the option value */ 3029 *(int *)optval = onoff; 3030 *optsize = sizeof(int); 3031 } 3032 break; 3033 } 3034 case SCTP_RECVNXTINFO: 3035 { 3036 int onoff; 3037 3038 if (*optsize < sizeof(int)) { 3039 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3040 error = EINVAL; 3041 } else { 3042 SCTP_INP_RUNLOCK(inp); 3043 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO); 3044 SCTP_INP_RUNLOCK(inp); 3045 } 3046 if (error == 0) { 3047 /* return the option value */ 3048 *(int *)optval = onoff; 3049 *optsize = sizeof(int); 3050 } 3051 break; 3052 } 3053 case SCTP_DEFAULT_SNDINFO: 3054 { 3055 struct sctp_sndinfo *info; 3056 3057 SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize); 3058 SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id); 3059 3060 if (stcb) { 3061 info->snd_sid = stcb->asoc.def_send.sinfo_stream; 3062 info->snd_flags = stcb->asoc.def_send.sinfo_flags; 3063 info->snd_flags &= 0xfff0; 3064 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid; 3065 info->snd_context = stcb->asoc.def_send.sinfo_context; 3066 SCTP_TCB_UNLOCK(stcb); 3067 } else { 3068 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3069 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 3070 (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) { 3071 SCTP_INP_RLOCK(inp); 3072 info->snd_sid = inp->def_send.sinfo_stream; 3073 info->snd_flags = inp->def_send.sinfo_flags; 3074 info->snd_flags &= 0xfff0; 3075 info->snd_ppid = inp->def_send.sinfo_ppid; 3076 info->snd_context = inp->def_send.sinfo_context; 3077 SCTP_INP_RUNLOCK(inp); 3078 } else { 3079 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3080 error = EINVAL; 3081 } 3082 } 3083 if (error == 0) { 3084 *optsize = sizeof(struct sctp_sndinfo); 3085 } 3086 break; 3087 } 3088 case SCTP_DEFAULT_PRINFO: 3089 { 3090 struct sctp_default_prinfo *info; 3091 3092 SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize); 3093 SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id); 3094 3095 if (stcb) { 3096 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags); 3097 info->pr_value = stcb->asoc.def_send.sinfo_timetolive; 3098 SCTP_TCB_UNLOCK(stcb); 3099 } else { 3100 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3101 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 3102 (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) { 3103 SCTP_INP_RLOCK(inp); 3104 info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags); 3105 info->pr_value = inp->def_send.sinfo_timetolive; 3106 SCTP_INP_RUNLOCK(inp); 3107 } else { 3108 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3109 error = EINVAL; 3110 } 3111 } 3112 if (error == 0) { 3113 *optsize = sizeof(struct sctp_default_prinfo); 3114 } 3115 break; 3116 } 3117 case SCTP_PEER_ADDR_THLDS: 3118 { 3119 struct sctp_paddrthlds *thlds; 3120 struct sctp_nets *net; 3121 3122 SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize); 3123 SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id); 3124 3125 net = NULL; 3126 if (stcb) { 3127 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_address); 3128 } else { 3129 /* 3130 * We increment here since 3131 * sctp_findassociation_ep_addr() wil do a 3132 * decrement if it finds the stcb as long as 3133 * the locked tcb (last argument) is NOT a 3134 * TCB.. aka NULL. 3135 */ 3136 SCTP_INP_INCR_REF(inp); 3137 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&thlds->spt_address, &net, NULL, NULL); 3138 if (stcb == NULL) { 3139 SCTP_INP_DECR_REF(inp); 3140 } 3141 } 3142 if (stcb && (net == NULL)) { 3143 struct sockaddr *sa; 3144 3145 sa = (struct sockaddr *)&thlds->spt_address; 3146 #ifdef INET 3147 if (sa->sa_family == AF_INET) { 3148 struct sockaddr_in *sin; 3149 3150 sin = (struct sockaddr_in *)sa; 3151 if (sin->sin_addr.s_addr) { 3152 error = EINVAL; 3153 SCTP_TCB_UNLOCK(stcb); 3154 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 3155 break; 3156 } 3157 } else 3158 #endif 3159 #ifdef INET6 3160 if (sa->sa_family == AF_INET6) { 3161 struct sockaddr_in6 *sin6; 3162 3163 sin6 = (struct sockaddr_in6 *)sa; 3164 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 3165 error = EINVAL; 3166 SCTP_TCB_UNLOCK(stcb); 3167 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 3168 break; 3169 } 3170 } else 3171 #endif 3172 { 3173 error = EAFNOSUPPORT; 3174 SCTP_TCB_UNLOCK(stcb); 3175 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 3176 break; 3177 } 3178 } 3179 if (stcb) { 3180 if (net) { 3181 thlds->spt_pathmaxrxt = net->failure_threshold; 3182 thlds->spt_pathpfthld = net->pf_threshold; 3183 } else { 3184 thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure; 3185 thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold; 3186 } 3187 thlds->spt_assoc_id = sctp_get_associd(stcb); 3188 SCTP_TCB_UNLOCK(stcb); 3189 } else { 3190 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3191 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 3192 (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) { 3193 /* Use endpoint defaults */ 3194 SCTP_INP_RLOCK(inp); 3195 thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure; 3196 thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold; 3197 SCTP_INP_RUNLOCK(inp); 3198 } else { 3199 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3200 error = EINVAL; 3201 } 3202 } 3203 if (error == 0) { 3204 *optsize = sizeof(struct sctp_paddrthlds); 3205 } 3206 break; 3207 } 3208 case SCTP_REMOTE_UDP_ENCAPS_PORT: 3209 { 3210 struct sctp_udpencaps *encaps; 3211 struct sctp_nets *net; 3212 3213 SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize); 3214 SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id); 3215 3216 if (stcb) { 3217 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address); 3218 } else { 3219 /* 3220 * We increment here since 3221 * sctp_findassociation_ep_addr() wil do a 3222 * decrement if it finds the stcb as long as 3223 * the locked tcb (last argument) is NOT a 3224 * TCB.. aka NULL. 3225 */ 3226 net = NULL; 3227 SCTP_INP_INCR_REF(inp); 3228 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL); 3229 if (stcb == NULL) { 3230 SCTP_INP_DECR_REF(inp); 3231 } 3232 } 3233 if (stcb && (net == NULL)) { 3234 struct sockaddr *sa; 3235 3236 sa = (struct sockaddr *)&encaps->sue_address; 3237 #ifdef INET 3238 if (sa->sa_family == AF_INET) { 3239 struct sockaddr_in *sin; 3240 3241 sin = (struct sockaddr_in *)sa; 3242 if (sin->sin_addr.s_addr) { 3243 error = EINVAL; 3244 SCTP_TCB_UNLOCK(stcb); 3245 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 3246 break; 3247 } 3248 } else 3249 #endif 3250 #ifdef INET6 3251 if (sa->sa_family == AF_INET6) { 3252 struct sockaddr_in6 *sin6; 3253 3254 sin6 = (struct sockaddr_in6 *)sa; 3255 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 3256 error = EINVAL; 3257 SCTP_TCB_UNLOCK(stcb); 3258 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 3259 break; 3260 } 3261 } else 3262 #endif 3263 { 3264 error = EAFNOSUPPORT; 3265 SCTP_TCB_UNLOCK(stcb); 3266 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 3267 break; 3268 } 3269 } 3270 if (stcb) { 3271 if (net) { 3272 encaps->sue_port = net->port; 3273 } else { 3274 encaps->sue_port = stcb->asoc.port; 3275 } 3276 SCTP_TCB_UNLOCK(stcb); 3277 } else { 3278 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3279 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 3280 (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) { 3281 SCTP_INP_RLOCK(inp); 3282 encaps->sue_port = inp->sctp_ep.port; 3283 SCTP_INP_RUNLOCK(inp); 3284 } else { 3285 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3286 error = EINVAL; 3287 } 3288 } 3289 if (error == 0) { 3290 *optsize = sizeof(struct sctp_paddrparams); 3291 } 3292 break; 3293 } 3294 default: 3295 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 3296 error = ENOPROTOOPT; 3297 break; 3298 } /* end switch (sopt->sopt_name) */ 3299 if (error) { 3300 *optsize = 0; 3301 } 3302 return (error); 3303 } 3304 3305 static int 3306 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize, 3307 void *p) 3308 { 3309 int error, set_opt; 3310 uint32_t *mopt; 3311 struct sctp_tcb *stcb = NULL; 3312 struct sctp_inpcb *inp = NULL; 3313 uint32_t vrf_id; 3314 3315 if (optval == NULL) { 3316 SCTP_PRINTF("optval is NULL\n"); 3317 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3318 return (EINVAL); 3319 } 3320 inp = (struct sctp_inpcb *)so->so_pcb; 3321 if (inp == 0) { 3322 SCTP_PRINTF("inp is NULL?\n"); 3323 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3324 return EINVAL; 3325 } 3326 vrf_id = inp->def_vrf_id; 3327 3328 error = 0; 3329 switch (optname) { 3330 case SCTP_NODELAY: 3331 case SCTP_AUTOCLOSE: 3332 case SCTP_AUTO_ASCONF: 3333 case SCTP_EXPLICIT_EOR: 3334 case SCTP_DISABLE_FRAGMENTS: 3335 case SCTP_USE_EXT_RCVINFO: 3336 case SCTP_I_WANT_MAPPED_V4_ADDR: 3337 /* copy in the option value */ 3338 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 3339 set_opt = 0; 3340 if (error) 3341 break; 3342 switch (optname) { 3343 case SCTP_DISABLE_FRAGMENTS: 3344 set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT; 3345 break; 3346 case SCTP_AUTO_ASCONF: 3347 /* 3348 * NOTE: we don't really support this flag 3349 */ 3350 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 3351 /* only valid for bound all sockets */ 3352 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) && 3353 (*mopt != 0)) { 3354 /* forbidden by admin */ 3355 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM); 3356 return (EPERM); 3357 } 3358 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF; 3359 } else { 3360 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3361 return (EINVAL); 3362 } 3363 break; 3364 case SCTP_EXPLICIT_EOR: 3365 set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR; 3366 break; 3367 case SCTP_USE_EXT_RCVINFO: 3368 set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO; 3369 break; 3370 case SCTP_I_WANT_MAPPED_V4_ADDR: 3371 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3372 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4; 3373 } else { 3374 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3375 return (EINVAL); 3376 } 3377 break; 3378 case SCTP_NODELAY: 3379 set_opt = SCTP_PCB_FLAGS_NODELAY; 3380 break; 3381 case SCTP_AUTOCLOSE: 3382 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3383 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 3384 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3385 return (EINVAL); 3386 } 3387 set_opt = SCTP_PCB_FLAGS_AUTOCLOSE; 3388 /* 3389 * The value is in ticks. Note this does not effect 3390 * old associations, only new ones. 3391 */ 3392 inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt); 3393 break; 3394 } 3395 SCTP_INP_WLOCK(inp); 3396 if (*mopt != 0) { 3397 sctp_feature_on(inp, set_opt); 3398 } else { 3399 sctp_feature_off(inp, set_opt); 3400 } 3401 SCTP_INP_WUNLOCK(inp); 3402 break; 3403 case SCTP_REUSE_PORT: 3404 { 3405 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 3406 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) { 3407 /* Can't set it after we are bound */ 3408 error = EINVAL; 3409 break; 3410 } 3411 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) { 3412 /* Can't do this for a 1-m socket */ 3413 error = EINVAL; 3414 break; 3415 } 3416 if (optval) 3417 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE); 3418 else 3419 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE); 3420 break; 3421 } 3422 case SCTP_PARTIAL_DELIVERY_POINT: 3423 { 3424 uint32_t *value; 3425 3426 SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize); 3427 if (*value > SCTP_SB_LIMIT_RCV(so)) { 3428 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3429 error = EINVAL; 3430 break; 3431 } 3432 inp->partial_delivery_point = *value; 3433 break; 3434 } 3435 case SCTP_FRAGMENT_INTERLEAVE: 3436 /* not yet until we re-write sctp_recvmsg() */ 3437 { 3438 uint32_t *level; 3439 3440 SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize); 3441 if (*level == SCTP_FRAG_LEVEL_2) { 3442 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 3443 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 3444 } else if (*level == SCTP_FRAG_LEVEL_1) { 3445 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 3446 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 3447 } else if (*level == SCTP_FRAG_LEVEL_0) { 3448 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 3449 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 3450 3451 } else { 3452 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3453 error = EINVAL; 3454 } 3455 break; 3456 } 3457 case SCTP_CMT_ON_OFF: 3458 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) { 3459 struct sctp_assoc_value *av; 3460 3461 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3462 if (av->assoc_value > SCTP_CMT_MAX) { 3463 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3464 error = EINVAL; 3465 break; 3466 } 3467 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3468 if (stcb) { 3469 stcb->asoc.sctp_cmt_on_off = av->assoc_value; 3470 SCTP_TCB_UNLOCK(stcb); 3471 } else { 3472 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3473 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 3474 (av->assoc_id == SCTP_FUTURE_ASSOC) || 3475 (av->assoc_id == SCTP_ALL_ASSOC)) { 3476 SCTP_INP_WLOCK(inp); 3477 inp->sctp_cmt_on_off = av->assoc_value; 3478 SCTP_INP_WUNLOCK(inp); 3479 } 3480 if ((av->assoc_id == SCTP_CURRENT_ASSOC) || 3481 (av->assoc_id == SCTP_ALL_ASSOC)) { 3482 SCTP_INP_RLOCK(inp); 3483 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3484 SCTP_TCB_LOCK(stcb); 3485 stcb->asoc.sctp_cmt_on_off = av->assoc_value; 3486 SCTP_TCB_UNLOCK(stcb); 3487 } 3488 SCTP_INP_RUNLOCK(inp); 3489 } 3490 } 3491 } else { 3492 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 3493 error = ENOPROTOOPT; 3494 } 3495 break; 3496 case SCTP_PLUGGABLE_CC: 3497 { 3498 struct sctp_assoc_value *av; 3499 struct sctp_nets *net; 3500 3501 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3502 if ((av->assoc_value != SCTP_CC_RFC2581) && 3503 (av->assoc_value != SCTP_CC_HSTCP) && 3504 (av->assoc_value != SCTP_CC_HTCP) && 3505 (av->assoc_value != SCTP_CC_RTCC)) { 3506 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3507 error = EINVAL; 3508 break; 3509 } 3510 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3511 if (stcb) { 3512 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value]; 3513 stcb->asoc.congestion_control_module = av->assoc_value; 3514 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) { 3515 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3516 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net); 3517 } 3518 } 3519 SCTP_TCB_UNLOCK(stcb); 3520 } else { 3521 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3522 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 3523 (av->assoc_id == SCTP_FUTURE_ASSOC) || 3524 (av->assoc_id == SCTP_ALL_ASSOC)) { 3525 SCTP_INP_WLOCK(inp); 3526 inp->sctp_ep.sctp_default_cc_module = av->assoc_value; 3527 SCTP_INP_WUNLOCK(inp); 3528 } 3529 if ((av->assoc_id == SCTP_CURRENT_ASSOC) || 3530 (av->assoc_id == SCTP_ALL_ASSOC)) { 3531 SCTP_INP_RLOCK(inp); 3532 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3533 SCTP_TCB_LOCK(stcb); 3534 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value]; 3535 stcb->asoc.congestion_control_module = av->assoc_value; 3536 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) { 3537 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3538 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net); 3539 } 3540 } 3541 SCTP_TCB_UNLOCK(stcb); 3542 } 3543 SCTP_INP_RUNLOCK(inp); 3544 } 3545 } 3546 break; 3547 } 3548 case SCTP_CC_OPTION: 3549 { 3550 struct sctp_cc_option *cc_opt; 3551 3552 SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize); 3553 SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id); 3554 if (stcb == NULL) { 3555 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) { 3556 SCTP_INP_RLOCK(inp); 3557 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3558 SCTP_TCB_LOCK(stcb); 3559 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) { 3560 (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt); 3561 } 3562 SCTP_TCB_UNLOCK(stcb); 3563 } 3564 SCTP_INP_RUNLOCK(inp); 3565 } else { 3566 error = EINVAL; 3567 } 3568 } else { 3569 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) { 3570 error = ENOTSUP; 3571 } else { 3572 error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, 3573 cc_opt); 3574 } 3575 SCTP_TCB_UNLOCK(stcb); 3576 } 3577 break; 3578 } 3579 case SCTP_PLUGGABLE_SS: 3580 { 3581 struct sctp_assoc_value *av; 3582 3583 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3584 if ((av->assoc_value != SCTP_SS_DEFAULT) && 3585 (av->assoc_value != SCTP_SS_DEFAULT) && 3586 (av->assoc_value != SCTP_SS_ROUND_ROBIN) && 3587 (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) && 3588 (av->assoc_value != SCTP_SS_PRIORITY) && 3589 (av->assoc_value != SCTP_SS_FAIR_BANDWITH) && 3590 (av->assoc_value != SCTP_SS_FIRST_COME)) { 3591 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3592 error = EINVAL; 3593 break; 3594 } 3595 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3596 if (stcb) { 3597 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1); 3598 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value]; 3599 stcb->asoc.stream_scheduling_module = av->assoc_value; 3600 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1); 3601 SCTP_TCB_UNLOCK(stcb); 3602 } else { 3603 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3604 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 3605 (av->assoc_id == SCTP_FUTURE_ASSOC) || 3606 (av->assoc_id == SCTP_ALL_ASSOC)) { 3607 SCTP_INP_WLOCK(inp); 3608 inp->sctp_ep.sctp_default_ss_module = av->assoc_value; 3609 SCTP_INP_WUNLOCK(inp); 3610 } 3611 if ((av->assoc_id == SCTP_CURRENT_ASSOC) || 3612 (av->assoc_id == SCTP_ALL_ASSOC)) { 3613 SCTP_INP_RLOCK(inp); 3614 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3615 SCTP_TCB_LOCK(stcb); 3616 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1); 3617 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value]; 3618 stcb->asoc.stream_scheduling_module = av->assoc_value; 3619 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1); 3620 SCTP_TCB_UNLOCK(stcb); 3621 } 3622 SCTP_INP_RUNLOCK(inp); 3623 } 3624 } 3625 break; 3626 } 3627 case SCTP_SS_VALUE: 3628 { 3629 struct sctp_stream_value *av; 3630 3631 SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize); 3632 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3633 if (stcb) { 3634 if (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id], 3635 av->stream_value) < 0) { 3636 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3637 error = EINVAL; 3638 } 3639 SCTP_TCB_UNLOCK(stcb); 3640 } else { 3641 if (av->assoc_id == SCTP_CURRENT_ASSOC) { 3642 SCTP_INP_RLOCK(inp); 3643 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3644 SCTP_TCB_LOCK(stcb); 3645 stcb->asoc.ss_functions.sctp_ss_set_value(stcb, 3646 &stcb->asoc, 3647 &stcb->asoc.strmout[av->stream_id], 3648 av->stream_value); 3649 SCTP_TCB_UNLOCK(stcb); 3650 } 3651 SCTP_INP_RUNLOCK(inp); 3652 3653 } else { 3654 /* 3655 * Can't set stream value without 3656 * association 3657 */ 3658 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3659 error = EINVAL; 3660 } 3661 } 3662 break; 3663 } 3664 case SCTP_CLR_STAT_LOG: 3665 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 3666 error = EOPNOTSUPP; 3667 break; 3668 case SCTP_CONTEXT: 3669 { 3670 struct sctp_assoc_value *av; 3671 3672 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3673 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3674 3675 if (stcb) { 3676 stcb->asoc.context = av->assoc_value; 3677 SCTP_TCB_UNLOCK(stcb); 3678 } else { 3679 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3680 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 3681 (av->assoc_id == SCTP_FUTURE_ASSOC) || 3682 (av->assoc_id == SCTP_ALL_ASSOC)) { 3683 SCTP_INP_WLOCK(inp); 3684 inp->sctp_context = av->assoc_value; 3685 SCTP_INP_WUNLOCK(inp); 3686 } 3687 if ((av->assoc_id == SCTP_CURRENT_ASSOC) || 3688 (av->assoc_id == SCTP_ALL_ASSOC)) { 3689 SCTP_INP_RLOCK(inp); 3690 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3691 SCTP_TCB_LOCK(stcb); 3692 stcb->asoc.context = av->assoc_value; 3693 SCTP_TCB_UNLOCK(stcb); 3694 } 3695 SCTP_INP_RUNLOCK(inp); 3696 } 3697 } 3698 break; 3699 } 3700 case SCTP_VRF_ID: 3701 { 3702 uint32_t *default_vrfid; 3703 3704 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize); 3705 if (*default_vrfid > SCTP_MAX_VRF_ID) { 3706 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3707 error = EINVAL; 3708 break; 3709 } 3710 inp->def_vrf_id = *default_vrfid; 3711 break; 3712 } 3713 case SCTP_DEL_VRF_ID: 3714 { 3715 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 3716 error = EOPNOTSUPP; 3717 break; 3718 } 3719 case SCTP_ADD_VRF_ID: 3720 { 3721 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 3722 error = EOPNOTSUPP; 3723 break; 3724 } 3725 case SCTP_DELAYED_SACK: 3726 { 3727 struct sctp_sack_info *sack; 3728 3729 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize); 3730 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 3731 if (sack->sack_delay) { 3732 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) 3733 sack->sack_delay = SCTP_MAX_SACK_DELAY; 3734 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 3735 sack->sack_delay = TICKS_TO_MSEC(1); 3736 } 3737 } 3738 if (stcb) { 3739 if (sack->sack_delay) { 3740 stcb->asoc.delayed_ack = sack->sack_delay; 3741 } 3742 if (sack->sack_freq) { 3743 stcb->asoc.sack_freq = sack->sack_freq; 3744 } 3745 SCTP_TCB_UNLOCK(stcb); 3746 } else { 3747 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3748 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 3749 (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) || 3750 (sack->sack_assoc_id == SCTP_ALL_ASSOC)) { 3751 SCTP_INP_WLOCK(inp); 3752 if (sack->sack_delay) { 3753 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay); 3754 } 3755 if (sack->sack_freq) { 3756 inp->sctp_ep.sctp_sack_freq = sack->sack_freq; 3757 } 3758 SCTP_INP_WUNLOCK(inp); 3759 } 3760 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) || 3761 (sack->sack_assoc_id == SCTP_ALL_ASSOC)) { 3762 SCTP_INP_RLOCK(inp); 3763 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3764 SCTP_TCB_LOCK(stcb); 3765 if (sack->sack_delay) { 3766 stcb->asoc.delayed_ack = sack->sack_delay; 3767 } 3768 if (sack->sack_freq) { 3769 stcb->asoc.sack_freq = sack->sack_freq; 3770 } 3771 SCTP_TCB_UNLOCK(stcb); 3772 } 3773 SCTP_INP_RUNLOCK(inp); 3774 } 3775 } 3776 break; 3777 } 3778 case SCTP_AUTH_CHUNK: 3779 { 3780 struct sctp_authchunk *sauth; 3781 3782 SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize); 3783 3784 SCTP_INP_WLOCK(inp); 3785 if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) { 3786 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3787 error = EINVAL; 3788 } 3789 SCTP_INP_WUNLOCK(inp); 3790 break; 3791 } 3792 case SCTP_AUTH_KEY: 3793 { 3794 struct sctp_authkey *sca; 3795 struct sctp_keyhead *shared_keys; 3796 sctp_sharedkey_t *shared_key; 3797 sctp_key_t *key = NULL; 3798 size_t size; 3799 3800 SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize); 3801 if (sca->sca_keylength == 0) { 3802 size = optsize - sizeof(struct sctp_authkey); 3803 } else { 3804 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) { 3805 size = sca->sca_keylength; 3806 } else { 3807 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3808 error = EINVAL; 3809 break; 3810 } 3811 } 3812 SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id); 3813 3814 if (stcb) { 3815 shared_keys = &stcb->asoc.shared_keys; 3816 /* clear the cached keys for this key id */ 3817 sctp_clear_cachedkeys(stcb, sca->sca_keynumber); 3818 /* 3819 * create the new shared key and 3820 * insert/replace it 3821 */ 3822 if (size > 0) { 3823 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3824 if (key == NULL) { 3825 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3826 error = ENOMEM; 3827 SCTP_TCB_UNLOCK(stcb); 3828 break; 3829 } 3830 } 3831 shared_key = sctp_alloc_sharedkey(); 3832 if (shared_key == NULL) { 3833 sctp_free_key(key); 3834 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3835 error = ENOMEM; 3836 SCTP_TCB_UNLOCK(stcb); 3837 break; 3838 } 3839 shared_key->key = key; 3840 shared_key->keyid = sca->sca_keynumber; 3841 error = sctp_insert_sharedkey(shared_keys, shared_key); 3842 SCTP_TCB_UNLOCK(stcb); 3843 } else { 3844 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3845 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 3846 (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) || 3847 (sca->sca_assoc_id == SCTP_ALL_ASSOC)) { 3848 SCTP_INP_WLOCK(inp); 3849 shared_keys = &inp->sctp_ep.shared_keys; 3850 /* 3851 * clear the cached keys on all 3852 * assocs for this key id 3853 */ 3854 sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber); 3855 /* 3856 * create the new shared key and 3857 * insert/replace it 3858 */ 3859 if (size > 0) { 3860 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3861 if (key == NULL) { 3862 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3863 error = ENOMEM; 3864 SCTP_INP_WUNLOCK(inp); 3865 break; 3866 } 3867 } 3868 shared_key = sctp_alloc_sharedkey(); 3869 if (shared_key == NULL) { 3870 sctp_free_key(key); 3871 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3872 error = ENOMEM; 3873 SCTP_INP_WUNLOCK(inp); 3874 break; 3875 } 3876 shared_key->key = key; 3877 shared_key->keyid = sca->sca_keynumber; 3878 error = sctp_insert_sharedkey(shared_keys, shared_key); 3879 SCTP_INP_WUNLOCK(inp); 3880 } 3881 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) || 3882 (sca->sca_assoc_id == SCTP_ALL_ASSOC)) { 3883 SCTP_INP_RLOCK(inp); 3884 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3885 SCTP_TCB_LOCK(stcb); 3886 shared_keys = &stcb->asoc.shared_keys; 3887 /* 3888 * clear the cached keys for 3889 * this key id 3890 */ 3891 sctp_clear_cachedkeys(stcb, sca->sca_keynumber); 3892 /* 3893 * create the new shared key 3894 * and insert/replace it 3895 */ 3896 if (size > 0) { 3897 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3898 if (key == NULL) { 3899 SCTP_TCB_UNLOCK(stcb); 3900 continue; 3901 } 3902 } 3903 shared_key = sctp_alloc_sharedkey(); 3904 if (shared_key == NULL) { 3905 sctp_free_key(key); 3906 SCTP_TCB_UNLOCK(stcb); 3907 continue; 3908 } 3909 shared_key->key = key; 3910 shared_key->keyid = sca->sca_keynumber; 3911 error = sctp_insert_sharedkey(shared_keys, shared_key); 3912 SCTP_TCB_UNLOCK(stcb); 3913 } 3914 SCTP_INP_RUNLOCK(inp); 3915 } 3916 } 3917 break; 3918 } 3919 case SCTP_HMAC_IDENT: 3920 { 3921 struct sctp_hmacalgo *shmac; 3922 sctp_hmaclist_t *hmaclist; 3923 uint16_t hmacid; 3924 uint32_t i; 3925 size_t found; 3926 3927 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize); 3928 if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) { 3929 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3930 error = EINVAL; 3931 break; 3932 } 3933 hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents); 3934 if (hmaclist == NULL) { 3935 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3936 error = ENOMEM; 3937 break; 3938 } 3939 for (i = 0; i < shmac->shmac_number_of_idents; i++) { 3940 hmacid = shmac->shmac_idents[i]; 3941 if (sctp_auth_add_hmacid(hmaclist, hmacid)) { 3942 /* invalid HMACs were found */ ; 3943 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3944 error = EINVAL; 3945 sctp_free_hmaclist(hmaclist); 3946 goto sctp_set_hmac_done; 3947 } 3948 } 3949 found = 0; 3950 for (i = 0; i < hmaclist->num_algo; i++) { 3951 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) { 3952 /* already in list */ 3953 found = 1; 3954 } 3955 } 3956 if (!found) { 3957 sctp_free_hmaclist(hmaclist); 3958 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3959 error = EINVAL; 3960 break; 3961 } 3962 /* set it on the endpoint */ 3963 SCTP_INP_WLOCK(inp); 3964 if (inp->sctp_ep.local_hmacs) 3965 sctp_free_hmaclist(inp->sctp_ep.local_hmacs); 3966 inp->sctp_ep.local_hmacs = hmaclist; 3967 SCTP_INP_WUNLOCK(inp); 3968 sctp_set_hmac_done: 3969 break; 3970 } 3971 case SCTP_AUTH_ACTIVE_KEY: 3972 { 3973 struct sctp_authkeyid *scact; 3974 3975 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize); 3976 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 3977 3978 /* set the active key on the right place */ 3979 if (stcb) { 3980 /* set the active key on the assoc */ 3981 if (sctp_auth_setactivekey(stcb, 3982 scact->scact_keynumber)) { 3983 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3984 SCTP_FROM_SCTP_USRREQ, 3985 EINVAL); 3986 error = EINVAL; 3987 } 3988 SCTP_TCB_UNLOCK(stcb); 3989 } else { 3990 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3991 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 3992 (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) || 3993 (scact->scact_assoc_id == SCTP_ALL_ASSOC)) { 3994 SCTP_INP_WLOCK(inp); 3995 if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) { 3996 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3997 error = EINVAL; 3998 } 3999 SCTP_INP_WUNLOCK(inp); 4000 } 4001 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) || 4002 (scact->scact_assoc_id == SCTP_ALL_ASSOC)) { 4003 SCTP_INP_RLOCK(inp); 4004 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 4005 SCTP_TCB_LOCK(stcb); 4006 sctp_auth_setactivekey(stcb, scact->scact_keynumber); 4007 SCTP_TCB_UNLOCK(stcb); 4008 } 4009 SCTP_INP_RUNLOCK(inp); 4010 } 4011 } 4012 break; 4013 } 4014 case SCTP_AUTH_DELETE_KEY: 4015 { 4016 struct sctp_authkeyid *scdel; 4017 4018 SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize); 4019 SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id); 4020 4021 /* delete the key from the right place */ 4022 if (stcb) { 4023 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) { 4024 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4025 error = EINVAL; 4026 } 4027 SCTP_TCB_UNLOCK(stcb); 4028 } else { 4029 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 4030 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 4031 (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) || 4032 (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) { 4033 SCTP_INP_WLOCK(inp); 4034 if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) { 4035 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4036 error = EINVAL; 4037 } 4038 SCTP_INP_WUNLOCK(inp); 4039 } 4040 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) || 4041 (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) { 4042 SCTP_INP_RLOCK(inp); 4043 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 4044 SCTP_TCB_LOCK(stcb); 4045 sctp_delete_sharedkey(stcb, scdel->scact_keynumber); 4046 SCTP_TCB_UNLOCK(stcb); 4047 } 4048 SCTP_INP_RUNLOCK(inp); 4049 } 4050 } 4051 break; 4052 } 4053 case SCTP_AUTH_DEACTIVATE_KEY: 4054 { 4055 struct sctp_authkeyid *keyid; 4056 4057 SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize); 4058 SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id); 4059 4060 /* deactivate the key from the right place */ 4061 if (stcb) { 4062 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) { 4063 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4064 error = EINVAL; 4065 } 4066 SCTP_TCB_UNLOCK(stcb); 4067 } else { 4068 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 4069 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 4070 (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) || 4071 (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) { 4072 SCTP_INP_WLOCK(inp); 4073 if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) { 4074 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4075 error = EINVAL; 4076 } 4077 SCTP_INP_WUNLOCK(inp); 4078 } 4079 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) || 4080 (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) { 4081 SCTP_INP_RLOCK(inp); 4082 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 4083 SCTP_TCB_LOCK(stcb); 4084 sctp_deact_sharedkey(stcb, keyid->scact_keynumber); 4085 SCTP_TCB_UNLOCK(stcb); 4086 } 4087 SCTP_INP_RUNLOCK(inp); 4088 } 4089 } 4090 break; 4091 } 4092 4093 case SCTP_RESET_STREAMS: 4094 { 4095 struct sctp_stream_reset *strrst; 4096 uint8_t send_in = 0, send_tsn = 0, send_out = 0, 4097 addstream = 0; 4098 uint16_t addstrmcnt = 0; 4099 int i; 4100 4101 SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize); 4102 SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id); 4103 4104 if (stcb == NULL) { 4105 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4106 error = ENOENT; 4107 break; 4108 } 4109 if (stcb->asoc.peer_supports_strreset == 0) { 4110 /* 4111 * Peer does not support it, we return 4112 * protocol not supported since this is true 4113 * for this feature and this peer, not the 4114 * socket request in general. 4115 */ 4116 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT); 4117 error = EPROTONOSUPPORT; 4118 SCTP_TCB_UNLOCK(stcb); 4119 break; 4120 } 4121 if (stcb->asoc.stream_reset_outstanding) { 4122 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 4123 error = EALREADY; 4124 SCTP_TCB_UNLOCK(stcb); 4125 break; 4126 } 4127 if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) { 4128 send_in = 1; 4129 } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) { 4130 send_out = 1; 4131 } else if (strrst->strrst_flags == SCTP_RESET_BOTH) { 4132 send_in = 1; 4133 send_out = 1; 4134 } else if (strrst->strrst_flags == SCTP_RESET_TSN) { 4135 send_tsn = 1; 4136 } else if (strrst->strrst_flags == SCTP_RESET_ADD_STREAMS) { 4137 if (send_tsn || 4138 send_in || 4139 send_out) { 4140 /* We can't do that and add streams */ 4141 error = EINVAL; 4142 goto skip_stuff; 4143 } 4144 if (stcb->asoc.stream_reset_outstanding) { 4145 error = EBUSY; 4146 goto skip_stuff; 4147 } 4148 addstream = 1; 4149 /* We allocate here */ 4150 addstrmcnt = strrst->strrst_num_streams; 4151 if ((int)(addstrmcnt + stcb->asoc.streamoutcnt) > 0xffff) { 4152 /* You can't have more than 64k */ 4153 error = EINVAL; 4154 goto skip_stuff; 4155 } 4156 if ((stcb->asoc.strm_realoutsize - stcb->asoc.streamoutcnt) < addstrmcnt) { 4157 /* Need to allocate more */ 4158 struct sctp_stream_out *oldstream; 4159 struct sctp_stream_queue_pending *sp, 4160 *nsp; 4161 4162 oldstream = stcb->asoc.strmout; 4163 /* get some more */ 4164 SCTP_MALLOC(stcb->asoc.strmout, struct sctp_stream_out *, 4165 ((stcb->asoc.streamoutcnt + addstrmcnt) * sizeof(struct sctp_stream_out)), 4166 SCTP_M_STRMO); 4167 if (stcb->asoc.strmout == NULL) { 4168 stcb->asoc.strmout = oldstream; 4169 error = ENOMEM; 4170 goto skip_stuff; 4171 } 4172 /* 4173 * Ok now we proceed with copying 4174 * the old out stuff and 4175 * initializing the new stuff. 4176 */ 4177 SCTP_TCB_SEND_LOCK(stcb); 4178 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 0, 1); 4179 for (i = 0; i < stcb->asoc.streamoutcnt; i++) { 4180 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); 4181 stcb->asoc.strmout[i].next_sequence_sent = oldstream[i].next_sequence_sent; 4182 stcb->asoc.strmout[i].last_msg_incomplete = oldstream[i].last_msg_incomplete; 4183 stcb->asoc.strmout[i].stream_no = i; 4184 stcb->asoc.ss_functions.sctp_ss_init_stream(&stcb->asoc.strmout[i], &oldstream[i]); 4185 /* 4186 * now anything on those 4187 * queues? 4188 */ 4189 TAILQ_FOREACH_SAFE(sp, &oldstream[i].outqueue, next, nsp) { 4190 TAILQ_REMOVE(&oldstream[i].outqueue, sp, next); 4191 TAILQ_INSERT_TAIL(&stcb->asoc.strmout[i].outqueue, sp, next); 4192 } 4193 /* 4194 * Now move assoc pointers 4195 * too 4196 */ 4197 if (stcb->asoc.last_out_stream == &oldstream[i]) { 4198 stcb->asoc.last_out_stream = &stcb->asoc.strmout[i]; 4199 } 4200 if (stcb->asoc.locked_on_sending == &oldstream[i]) { 4201 stcb->asoc.locked_on_sending = &stcb->asoc.strmout[i]; 4202 } 4203 } 4204 /* now the new streams */ 4205 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1); 4206 for (i = stcb->asoc.streamoutcnt; i < (stcb->asoc.streamoutcnt + addstrmcnt); i++) { 4207 stcb->asoc.strmout[i].next_sequence_sent = 0x0; 4208 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); 4209 stcb->asoc.strmout[i].stream_no = i; 4210 stcb->asoc.strmout[i].last_msg_incomplete = 0; 4211 stcb->asoc.ss_functions.sctp_ss_init_stream(&stcb->asoc.strmout[i], NULL); 4212 } 4213 stcb->asoc.strm_realoutsize = stcb->asoc.streamoutcnt + addstrmcnt; 4214 SCTP_FREE(oldstream, SCTP_M_STRMO); 4215 } 4216 SCTP_TCB_SEND_UNLOCK(stcb); 4217 goto skip_stuff; 4218 } else { 4219 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4220 error = EINVAL; 4221 SCTP_TCB_UNLOCK(stcb); 4222 break; 4223 } 4224 for (i = 0; i < strrst->strrst_num_streams; i++) { 4225 if ((send_in) && 4226 4227 (strrst->strrst_list[i] > stcb->asoc.streamincnt)) { 4228 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4229 error = EINVAL; 4230 goto get_out; 4231 } 4232 if ((send_out) && 4233 (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) { 4234 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4235 error = EINVAL; 4236 goto get_out; 4237 } 4238 } 4239 skip_stuff: 4240 if (error) { 4241 get_out: 4242 SCTP_TCB_UNLOCK(stcb); 4243 break; 4244 } 4245 error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams, 4246 strrst->strrst_list, 4247 send_out, (stcb->asoc.str_reset_seq_in - 3), 4248 send_in, send_tsn, addstream, addstrmcnt); 4249 4250 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED); 4251 SCTP_TCB_UNLOCK(stcb); 4252 break; 4253 } 4254 case SCTP_CONNECT_X: 4255 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 4256 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4257 error = EINVAL; 4258 break; 4259 } 4260 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0); 4261 break; 4262 case SCTP_CONNECT_X_DELAYED: 4263 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 4264 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4265 error = EINVAL; 4266 break; 4267 } 4268 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1); 4269 break; 4270 case SCTP_CONNECT_X_COMPLETE: 4271 { 4272 struct sockaddr *sa; 4273 struct sctp_nets *net; 4274 4275 /* FIXME MT: check correct? */ 4276 SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize); 4277 4278 /* find tcb */ 4279 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4280 SCTP_INP_RLOCK(inp); 4281 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4282 if (stcb) { 4283 SCTP_TCB_LOCK(stcb); 4284 net = sctp_findnet(stcb, sa); 4285 } 4286 SCTP_INP_RUNLOCK(inp); 4287 } else { 4288 /* 4289 * We increment here since 4290 * sctp_findassociation_ep_addr() wil do a 4291 * decrement if it finds the stcb as long as 4292 * the locked tcb (last argument) is NOT a 4293 * TCB.. aka NULL. 4294 */ 4295 SCTP_INP_INCR_REF(inp); 4296 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL); 4297 if (stcb == NULL) { 4298 SCTP_INP_DECR_REF(inp); 4299 } 4300 } 4301 4302 if (stcb == NULL) { 4303 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4304 error = ENOENT; 4305 break; 4306 } 4307 if (stcb->asoc.delayed_connection == 1) { 4308 stcb->asoc.delayed_connection = 0; 4309 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 4310 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb, 4311 stcb->asoc.primary_destination, 4312 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9); 4313 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 4314 } else { 4315 /* 4316 * already expired or did not use delayed 4317 * connectx 4318 */ 4319 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 4320 error = EALREADY; 4321 } 4322 SCTP_TCB_UNLOCK(stcb); 4323 break; 4324 } 4325 case SCTP_MAX_BURST: 4326 { 4327 struct sctp_assoc_value *av; 4328 4329 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 4330 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 4331 4332 if (stcb) { 4333 stcb->asoc.max_burst = av->assoc_value; 4334 SCTP_TCB_UNLOCK(stcb); 4335 } else { 4336 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 4337 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 4338 (av->assoc_id == SCTP_FUTURE_ASSOC) || 4339 (av->assoc_id == SCTP_ALL_ASSOC)) { 4340 SCTP_INP_WLOCK(inp); 4341 inp->sctp_ep.max_burst = av->assoc_value; 4342 SCTP_INP_WUNLOCK(inp); 4343 } 4344 if ((av->assoc_id == SCTP_CURRENT_ASSOC) || 4345 (av->assoc_id == SCTP_ALL_ASSOC)) { 4346 SCTP_INP_RLOCK(inp); 4347 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 4348 SCTP_TCB_LOCK(stcb); 4349 stcb->asoc.max_burst = av->assoc_value; 4350 SCTP_TCB_UNLOCK(stcb); 4351 } 4352 SCTP_INP_RUNLOCK(inp); 4353 } 4354 } 4355 break; 4356 } 4357 case SCTP_MAXSEG: 4358 { 4359 struct sctp_assoc_value *av; 4360 int ovh; 4361 4362 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 4363 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 4364 4365 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 4366 ovh = SCTP_MED_OVERHEAD; 4367 } else { 4368 ovh = SCTP_MED_V4_OVERHEAD; 4369 } 4370 if (stcb) { 4371 if (av->assoc_value) { 4372 stcb->asoc.sctp_frag_point = (av->assoc_value + ovh); 4373 } else { 4374 stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 4375 } 4376 SCTP_TCB_UNLOCK(stcb); 4377 } else { 4378 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 4379 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 4380 (av->assoc_id == SCTP_FUTURE_ASSOC)) { 4381 SCTP_INP_WLOCK(inp); 4382 /* 4383 * FIXME MT: I think this is not in 4384 * tune with the API ID 4385 */ 4386 if (av->assoc_value) { 4387 inp->sctp_frag_point = (av->assoc_value + ovh); 4388 } else { 4389 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 4390 } 4391 SCTP_INP_WUNLOCK(inp); 4392 } else { 4393 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4394 error = EINVAL; 4395 } 4396 } 4397 break; 4398 } 4399 case SCTP_EVENTS: 4400 { 4401 struct sctp_event_subscribe *events; 4402 4403 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize); 4404 4405 SCTP_INP_WLOCK(inp); 4406 if (events->sctp_data_io_event) { 4407 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 4408 } else { 4409 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 4410 } 4411 4412 if (events->sctp_association_event) { 4413 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 4414 } else { 4415 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 4416 } 4417 4418 if (events->sctp_address_event) { 4419 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 4420 } else { 4421 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 4422 } 4423 4424 if (events->sctp_send_failure_event) { 4425 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 4426 } else { 4427 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 4428 } 4429 4430 if (events->sctp_peer_error_event) { 4431 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR); 4432 } else { 4433 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR); 4434 } 4435 4436 if (events->sctp_shutdown_event) { 4437 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 4438 } else { 4439 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 4440 } 4441 4442 if (events->sctp_partial_delivery_event) { 4443 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 4444 } else { 4445 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 4446 } 4447 4448 if (events->sctp_adaptation_layer_event) { 4449 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 4450 } else { 4451 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 4452 } 4453 4454 if (events->sctp_authentication_event) { 4455 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT); 4456 } else { 4457 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT); 4458 } 4459 4460 if (events->sctp_sender_dry_event) { 4461 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT); 4462 } else { 4463 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT); 4464 } 4465 4466 if (events->sctp_stream_reset_event) { 4467 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 4468 } else { 4469 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 4470 } 4471 SCTP_INP_WUNLOCK(inp); 4472 4473 SCTP_INP_RLOCK(inp); 4474 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 4475 SCTP_TCB_LOCK(stcb); 4476 if (events->sctp_association_event) { 4477 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT); 4478 } else { 4479 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT); 4480 } 4481 if (events->sctp_address_event) { 4482 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT); 4483 } else { 4484 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT); 4485 } 4486 if (events->sctp_send_failure_event) { 4487 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 4488 } else { 4489 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 4490 } 4491 if (events->sctp_peer_error_event) { 4492 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR); 4493 } else { 4494 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR); 4495 } 4496 if (events->sctp_shutdown_event) { 4497 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 4498 } else { 4499 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 4500 } 4501 if (events->sctp_partial_delivery_event) { 4502 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT); 4503 } else { 4504 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT); 4505 } 4506 if (events->sctp_adaptation_layer_event) { 4507 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 4508 } else { 4509 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 4510 } 4511 if (events->sctp_authentication_event) { 4512 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT); 4513 } else { 4514 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT); 4515 } 4516 if (events->sctp_sender_dry_event) { 4517 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT); 4518 } else { 4519 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT); 4520 } 4521 if (events->sctp_stream_reset_event) { 4522 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 4523 } else { 4524 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 4525 } 4526 SCTP_TCB_UNLOCK(stcb); 4527 } 4528 /* 4529 * Send up the sender dry event only for 1-to-1 4530 * style sockets. 4531 */ 4532 if (events->sctp_sender_dry_event) { 4533 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 4534 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 4535 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4536 if (stcb) { 4537 SCTP_TCB_LOCK(stcb); 4538 if (TAILQ_EMPTY(&stcb->asoc.send_queue) && 4539 TAILQ_EMPTY(&stcb->asoc.sent_queue) && 4540 (stcb->asoc.stream_queue_cnt == 0)) { 4541 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED); 4542 } 4543 SCTP_TCB_UNLOCK(stcb); 4544 } 4545 } 4546 } 4547 SCTP_INP_RUNLOCK(inp); 4548 break; 4549 } 4550 case SCTP_ADAPTATION_LAYER: 4551 { 4552 struct sctp_setadaptation *adap_bits; 4553 4554 SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize); 4555 SCTP_INP_WLOCK(inp); 4556 inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind; 4557 SCTP_INP_WUNLOCK(inp); 4558 break; 4559 } 4560 #ifdef SCTP_DEBUG 4561 case SCTP_SET_INITIAL_DBG_SEQ: 4562 { 4563 uint32_t *vvv; 4564 4565 SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize); 4566 SCTP_INP_WLOCK(inp); 4567 inp->sctp_ep.initial_sequence_debug = *vvv; 4568 SCTP_INP_WUNLOCK(inp); 4569 break; 4570 } 4571 #endif 4572 case SCTP_DEFAULT_SEND_PARAM: 4573 { 4574 struct sctp_sndrcvinfo *s_info; 4575 4576 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize); 4577 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 4578 4579 if (stcb) { 4580 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) { 4581 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send))); 4582 } else { 4583 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4584 error = EINVAL; 4585 } 4586 SCTP_TCB_UNLOCK(stcb); 4587 } else { 4588 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 4589 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 4590 (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) || 4591 (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) { 4592 SCTP_INP_WLOCK(inp); 4593 memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send))); 4594 SCTP_INP_WUNLOCK(inp); 4595 } 4596 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) || 4597 (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) { 4598 SCTP_INP_RLOCK(inp); 4599 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 4600 SCTP_TCB_LOCK(stcb); 4601 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) { 4602 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send))); 4603 } 4604 SCTP_TCB_UNLOCK(stcb); 4605 } 4606 SCTP_INP_RUNLOCK(inp); 4607 } 4608 } 4609 break; 4610 } 4611 case SCTP_PEER_ADDR_PARAMS: 4612 { 4613 struct sctp_paddrparams *paddrp; 4614 struct sctp_nets *net; 4615 4616 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize); 4617 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 4618 net = NULL; 4619 if (stcb) { 4620 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 4621 } else { 4622 /* 4623 * We increment here since 4624 * sctp_findassociation_ep_addr() wil do a 4625 * decrement if it finds the stcb as long as 4626 * the locked tcb (last argument) is NOT a 4627 * TCB.. aka NULL. 4628 */ 4629 SCTP_INP_INCR_REF(inp); 4630 stcb = sctp_findassociation_ep_addr(&inp, 4631 (struct sockaddr *)&paddrp->spp_address, 4632 &net, NULL, NULL); 4633 if (stcb == NULL) { 4634 SCTP_INP_DECR_REF(inp); 4635 } 4636 } 4637 if (stcb && (net == NULL)) { 4638 struct sockaddr *sa; 4639 4640 sa = (struct sockaddr *)&paddrp->spp_address; 4641 #ifdef INET 4642 if (sa->sa_family == AF_INET) { 4643 4644 struct sockaddr_in *sin; 4645 4646 sin = (struct sockaddr_in *)sa; 4647 if (sin->sin_addr.s_addr) { 4648 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4649 SCTP_TCB_UNLOCK(stcb); 4650 error = EINVAL; 4651 break; 4652 } 4653 } else 4654 #endif 4655 #ifdef INET6 4656 if (sa->sa_family == AF_INET6) { 4657 struct sockaddr_in6 *sin6; 4658 4659 sin6 = (struct sockaddr_in6 *)sa; 4660 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 4661 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4662 SCTP_TCB_UNLOCK(stcb); 4663 error = EINVAL; 4664 break; 4665 } 4666 } else 4667 #endif 4668 { 4669 error = EAFNOSUPPORT; 4670 SCTP_TCB_UNLOCK(stcb); 4671 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 4672 break; 4673 } 4674 } 4675 /* sanity checks */ 4676 if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) { 4677 if (stcb) 4678 SCTP_TCB_UNLOCK(stcb); 4679 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4680 return (EINVAL); 4681 } 4682 if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) { 4683 if (stcb) 4684 SCTP_TCB_UNLOCK(stcb); 4685 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4686 return (EINVAL); 4687 } 4688 if (stcb) { 4689 /************************TCB SPECIFIC SET ******************/ 4690 /* 4691 * do we change the timer for HB, we run 4692 * only one? 4693 */ 4694 int ovh = 0; 4695 4696 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 4697 ovh = SCTP_MED_OVERHEAD; 4698 } else { 4699 ovh = SCTP_MED_V4_OVERHEAD; 4700 } 4701 4702 /* network sets ? */ 4703 if (net) { 4704 /************************NET SPECIFIC SET ******************/ 4705 if (paddrp->spp_flags & SPP_HB_DISABLE) { 4706 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) && 4707 !(net->dest_state & SCTP_ADDR_NOHB)) { 4708 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, 4709 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 4710 } 4711 net->dest_state |= SCTP_ADDR_NOHB; 4712 } 4713 if (paddrp->spp_flags & SPP_HB_ENABLE) { 4714 if (paddrp->spp_hbinterval) { 4715 net->heart_beat_delay = paddrp->spp_hbinterval; 4716 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) { 4717 net->heart_beat_delay = 0; 4718 } 4719 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, 4720 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 4721 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 4722 net->dest_state &= ~SCTP_ADDR_NOHB; 4723 } 4724 if (paddrp->spp_flags & SPP_HB_DEMAND) { 4725 /* on demand HB */ 4726 sctp_send_hb(stcb, net, SCTP_SO_LOCKED); 4727 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED); 4728 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 4729 } 4730 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 4731 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 4732 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 4733 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 4734 } 4735 net->dest_state |= SCTP_ADDR_NO_PMTUD; 4736 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 4737 net->mtu = paddrp->spp_pathmtu + ovh; 4738 if (net->mtu < stcb->asoc.smallest_mtu) { 4739 sctp_pathmtu_adjustment(stcb, net->mtu); 4740 } 4741 } 4742 } 4743 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 4744 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 4745 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 4746 } 4747 net->dest_state &= ~SCTP_ADDR_NO_PMTUD; 4748 } 4749 if (paddrp->spp_pathmaxrxt) { 4750 if (net->dest_state & SCTP_ADDR_PF) { 4751 if (net->error_count > paddrp->spp_pathmaxrxt) { 4752 net->dest_state &= ~SCTP_ADDR_PF; 4753 } 4754 } else { 4755 if ((net->error_count <= paddrp->spp_pathmaxrxt) && 4756 (net->error_count > net->pf_threshold)) { 4757 net->dest_state |= SCTP_ADDR_PF; 4758 sctp_send_hb(stcb, net, SCTP_SO_LOCKED); 4759 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3); 4760 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net); 4761 } 4762 } 4763 if (net->dest_state & SCTP_ADDR_REACHABLE) { 4764 if (net->error_count > paddrp->spp_pathmaxrxt) { 4765 net->dest_state &= ~SCTP_ADDR_REACHABLE; 4766 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED); 4767 } 4768 } else { 4769 if (net->error_count <= paddrp->spp_pathmaxrxt) { 4770 net->dest_state |= SCTP_ADDR_REACHABLE; 4771 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED); 4772 } 4773 } 4774 net->failure_threshold = paddrp->spp_pathmaxrxt; 4775 } 4776 if (paddrp->spp_flags & SPP_DSCP) { 4777 net->dscp = paddrp->spp_dscp & 0xfc; 4778 net->dscp |= 0x01; 4779 } 4780 #ifdef INET6 4781 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) { 4782 if (net->ro._l_addr.sa.sa_family == AF_INET6) { 4783 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff; 4784 net->flowlabel |= 0x80000000; 4785 } 4786 } 4787 #endif 4788 } else { 4789 /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/ 4790 if (paddrp->spp_pathmaxrxt) { 4791 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt; 4792 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4793 if (net->dest_state & SCTP_ADDR_PF) { 4794 if (net->error_count > paddrp->spp_pathmaxrxt) { 4795 net->dest_state &= ~SCTP_ADDR_PF; 4796 } 4797 } else { 4798 if ((net->error_count <= paddrp->spp_pathmaxrxt) && 4799 (net->error_count > net->pf_threshold)) { 4800 net->dest_state |= SCTP_ADDR_PF; 4801 sctp_send_hb(stcb, net, SCTP_SO_LOCKED); 4802 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3); 4803 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net); 4804 } 4805 } 4806 if (net->dest_state & SCTP_ADDR_REACHABLE) { 4807 if (net->error_count > paddrp->spp_pathmaxrxt) { 4808 net->dest_state &= ~SCTP_ADDR_REACHABLE; 4809 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED); 4810 } 4811 } else { 4812 if (net->error_count <= paddrp->spp_pathmaxrxt) { 4813 net->dest_state |= SCTP_ADDR_REACHABLE; 4814 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED); 4815 } 4816 } 4817 net->failure_threshold = paddrp->spp_pathmaxrxt; 4818 } 4819 } 4820 if (paddrp->spp_flags & SPP_HB_ENABLE) { 4821 if (paddrp->spp_hbinterval) { 4822 stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval; 4823 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) { 4824 stcb->asoc.heart_beat_delay = 0; 4825 } 4826 /* Turn back on the timer */ 4827 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4828 if (paddrp->spp_hbinterval) { 4829 net->heart_beat_delay = paddrp->spp_hbinterval; 4830 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) { 4831 net->heart_beat_delay = 0; 4832 } 4833 if (net->dest_state & SCTP_ADDR_NOHB) { 4834 net->dest_state &= ~SCTP_ADDR_NOHB; 4835 } 4836 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, 4837 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 4838 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 4839 } 4840 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 4841 } 4842 if (paddrp->spp_flags & SPP_HB_DISABLE) { 4843 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4844 if (!(net->dest_state & SCTP_ADDR_NOHB)) { 4845 net->dest_state |= SCTP_ADDR_NOHB; 4846 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) { 4847 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 4848 } 4849 } 4850 } 4851 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 4852 } 4853 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 4854 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4855 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 4856 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 4857 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 4858 } 4859 net->dest_state |= SCTP_ADDR_NO_PMTUD; 4860 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 4861 net->mtu = paddrp->spp_pathmtu + ovh; 4862 if (net->mtu < stcb->asoc.smallest_mtu) { 4863 sctp_pathmtu_adjustment(stcb, net->mtu); 4864 } 4865 } 4866 } 4867 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD); 4868 } 4869 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 4870 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4871 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 4872 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 4873 } 4874 net->dest_state &= ~SCTP_ADDR_NO_PMTUD; 4875 } 4876 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD); 4877 } 4878 if (paddrp->spp_flags & SPP_DSCP) { 4879 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4880 net->dscp = paddrp->spp_dscp & 0xfc; 4881 net->dscp |= 0x01; 4882 } 4883 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc; 4884 stcb->asoc.default_dscp |= 0x01; 4885 } 4886 #ifdef INET6 4887 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) { 4888 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4889 if (net->ro._l_addr.sa.sa_family == AF_INET6) { 4890 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff; 4891 net->flowlabel |= 0x80000000; 4892 } 4893 } 4894 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff; 4895 stcb->asoc.default_flowlabel |= 0x80000000; 4896 } 4897 #endif 4898 } 4899 SCTP_TCB_UNLOCK(stcb); 4900 } else { 4901 /************************NO TCB, SET TO default stuff ******************/ 4902 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 4903 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 4904 (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) { 4905 SCTP_INP_WLOCK(inp); 4906 /* 4907 * For the TOS/FLOWLABEL stuff you 4908 * set it with the options on the 4909 * socket 4910 */ 4911 if (paddrp->spp_pathmaxrxt) { 4912 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt; 4913 } 4914 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 4915 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0; 4916 else if (paddrp->spp_hbinterval) { 4917 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL) 4918 paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL; 4919 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval); 4920 } 4921 if (paddrp->spp_flags & SPP_HB_ENABLE) { 4922 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) { 4923 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0; 4924 } else if (paddrp->spp_hbinterval) { 4925 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval); 4926 } 4927 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 4928 } else if (paddrp->spp_flags & SPP_HB_DISABLE) { 4929 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 4930 } 4931 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 4932 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD); 4933 } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) { 4934 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD); 4935 } 4936 if (paddrp->spp_flags & SPP_DSCP) { 4937 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc; 4938 inp->sctp_ep.default_dscp |= 0x01; 4939 } 4940 #ifdef INET6 4941 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) { 4942 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 4943 inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff; 4944 inp->sctp_ep.default_flowlabel |= 0x80000000; 4945 } 4946 } 4947 #endif 4948 SCTP_INP_WUNLOCK(inp); 4949 } else { 4950 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4951 error = EINVAL; 4952 } 4953 } 4954 break; 4955 } 4956 case SCTP_RTOINFO: 4957 { 4958 struct sctp_rtoinfo *srto; 4959 uint32_t new_init, new_min, new_max; 4960 4961 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize); 4962 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 4963 4964 if (stcb) { 4965 if (srto->srto_initial) 4966 new_init = srto->srto_initial; 4967 else 4968 new_init = stcb->asoc.initial_rto; 4969 if (srto->srto_max) 4970 new_max = srto->srto_max; 4971 else 4972 new_max = stcb->asoc.maxrto; 4973 if (srto->srto_min) 4974 new_min = srto->srto_min; 4975 else 4976 new_min = stcb->asoc.minrto; 4977 if ((new_min <= new_init) && (new_init <= new_max)) { 4978 stcb->asoc.initial_rto = new_init; 4979 stcb->asoc.maxrto = new_max; 4980 stcb->asoc.minrto = new_min; 4981 } else { 4982 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4983 error = EINVAL; 4984 } 4985 SCTP_TCB_UNLOCK(stcb); 4986 } else { 4987 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 4988 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 4989 (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) { 4990 SCTP_INP_WLOCK(inp); 4991 if (srto->srto_initial) 4992 new_init = srto->srto_initial; 4993 else 4994 new_init = inp->sctp_ep.initial_rto; 4995 if (srto->srto_max) 4996 new_max = srto->srto_max; 4997 else 4998 new_max = inp->sctp_ep.sctp_maxrto; 4999 if (srto->srto_min) 5000 new_min = srto->srto_min; 5001 else 5002 new_min = inp->sctp_ep.sctp_minrto; 5003 if ((new_min <= new_init) && (new_init <= new_max)) { 5004 inp->sctp_ep.initial_rto = new_init; 5005 inp->sctp_ep.sctp_maxrto = new_max; 5006 inp->sctp_ep.sctp_minrto = new_min; 5007 } else { 5008 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5009 error = EINVAL; 5010 } 5011 SCTP_INP_WUNLOCK(inp); 5012 } else { 5013 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5014 error = EINVAL; 5015 } 5016 } 5017 break; 5018 } 5019 case SCTP_ASSOCINFO: 5020 { 5021 struct sctp_assocparams *sasoc; 5022 5023 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize); 5024 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 5025 if (sasoc->sasoc_cookie_life) { 5026 /* boundary check the cookie life */ 5027 if (sasoc->sasoc_cookie_life < 1000) 5028 sasoc->sasoc_cookie_life = 1000; 5029 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) { 5030 sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE; 5031 } 5032 } 5033 if (stcb) { 5034 if (sasoc->sasoc_asocmaxrxt) 5035 stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt; 5036 if (sasoc->sasoc_cookie_life) { 5037 stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 5038 } 5039 SCTP_TCB_UNLOCK(stcb); 5040 } else { 5041 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 5042 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 5043 (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) { 5044 SCTP_INP_WLOCK(inp); 5045 if (sasoc->sasoc_asocmaxrxt) 5046 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt; 5047 if (sasoc->sasoc_cookie_life) { 5048 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 5049 } 5050 SCTP_INP_WUNLOCK(inp); 5051 } else { 5052 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5053 error = EINVAL; 5054 } 5055 } 5056 break; 5057 } 5058 case SCTP_INITMSG: 5059 { 5060 struct sctp_initmsg *sinit; 5061 5062 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize); 5063 SCTP_INP_WLOCK(inp); 5064 if (sinit->sinit_num_ostreams) 5065 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams; 5066 5067 if (sinit->sinit_max_instreams) 5068 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams; 5069 5070 if (sinit->sinit_max_attempts) 5071 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts; 5072 5073 if (sinit->sinit_max_init_timeo) 5074 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo; 5075 SCTP_INP_WUNLOCK(inp); 5076 break; 5077 } 5078 case SCTP_PRIMARY_ADDR: 5079 { 5080 struct sctp_setprim *spa; 5081 struct sctp_nets *net; 5082 5083 SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize); 5084 SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id); 5085 5086 net = NULL; 5087 if (stcb) { 5088 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr); 5089 } else { 5090 /* 5091 * We increment here since 5092 * sctp_findassociation_ep_addr() wil do a 5093 * decrement if it finds the stcb as long as 5094 * the locked tcb (last argument) is NOT a 5095 * TCB.. aka NULL. 5096 */ 5097 SCTP_INP_INCR_REF(inp); 5098 stcb = sctp_findassociation_ep_addr(&inp, 5099 (struct sockaddr *)&spa->ssp_addr, 5100 &net, NULL, NULL); 5101 if (stcb == NULL) { 5102 SCTP_INP_DECR_REF(inp); 5103 } 5104 } 5105 5106 if ((stcb) && (net)) { 5107 if ((net != stcb->asoc.primary_destination) && 5108 (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) { 5109 /* Ok we need to set it */ 5110 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) { 5111 if ((stcb->asoc.alternate) && 5112 (!(net->dest_state & SCTP_ADDR_PF)) && 5113 (net->dest_state & SCTP_ADDR_REACHABLE)) { 5114 sctp_free_remote_addr(stcb->asoc.alternate); 5115 stcb->asoc.alternate = NULL; 5116 } 5117 } 5118 } 5119 } else { 5120 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5121 error = EINVAL; 5122 } 5123 if (stcb) { 5124 SCTP_TCB_UNLOCK(stcb); 5125 } 5126 break; 5127 } 5128 case SCTP_SET_DYNAMIC_PRIMARY: 5129 { 5130 union sctp_sockstore *ss; 5131 5132 error = priv_check(curthread, 5133 PRIV_NETINET_RESERVEDPORT); 5134 if (error) 5135 break; 5136 5137 SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize); 5138 /* SUPER USER CHECK? */ 5139 error = sctp_dynamic_set_primary(&ss->sa, vrf_id); 5140 break; 5141 } 5142 case SCTP_SET_PEER_PRIMARY_ADDR: 5143 { 5144 struct sctp_setpeerprim *sspp; 5145 5146 SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize); 5147 SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id); 5148 if (stcb != NULL) { 5149 struct sctp_ifa *ifa; 5150 5151 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr, 5152 stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED); 5153 if (ifa == NULL) { 5154 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5155 error = EINVAL; 5156 goto out_of_it; 5157 } 5158 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 5159 /* 5160 * Must validate the ifa found is in 5161 * our ep 5162 */ 5163 struct sctp_laddr *laddr; 5164 int found = 0; 5165 5166 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 5167 if (laddr->ifa == NULL) { 5168 SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n", 5169 __FUNCTION__); 5170 continue; 5171 } 5172 if (laddr->ifa == ifa) { 5173 found = 1; 5174 break; 5175 } 5176 } 5177 if (!found) { 5178 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5179 error = EINVAL; 5180 goto out_of_it; 5181 } 5182 } 5183 if (sctp_set_primary_ip_address_sa(stcb, 5184 (struct sockaddr *)&sspp->sspp_addr) != 0) { 5185 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5186 error = EINVAL; 5187 } 5188 out_of_it: 5189 SCTP_TCB_UNLOCK(stcb); 5190 } else { 5191 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5192 error = EINVAL; 5193 } 5194 break; 5195 } 5196 case SCTP_BINDX_ADD_ADDR: 5197 { 5198 struct sctp_getaddresses *addrs; 5199 size_t sz; 5200 struct thread *td; 5201 5202 td = (struct thread *)p; 5203 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, 5204 optsize); 5205 #ifdef INET 5206 if (addrs->addr->sa_family == AF_INET) { 5207 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 5208 if (optsize < sz) { 5209 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5210 error = EINVAL; 5211 break; 5212 } 5213 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { 5214 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 5215 break; 5216 } 5217 } else 5218 #endif 5219 #ifdef INET6 5220 if (addrs->addr->sa_family == AF_INET6) { 5221 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 5222 if (optsize < sz) { 5223 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5224 error = EINVAL; 5225 break; 5226 } 5227 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), 5228 (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { 5229 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 5230 break; 5231 } 5232 } else 5233 #endif 5234 { 5235 error = EAFNOSUPPORT; 5236 break; 5237 } 5238 sctp_bindx_add_address(so, inp, addrs->addr, 5239 addrs->sget_assoc_id, vrf_id, 5240 &error, p); 5241 break; 5242 } 5243 case SCTP_BINDX_REM_ADDR: 5244 { 5245 struct sctp_getaddresses *addrs; 5246 size_t sz; 5247 struct thread *td; 5248 5249 td = (struct thread *)p; 5250 5251 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize); 5252 #ifdef INET 5253 if (addrs->addr->sa_family == AF_INET) { 5254 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 5255 if (optsize < sz) { 5256 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5257 error = EINVAL; 5258 break; 5259 } 5260 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { 5261 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 5262 break; 5263 } 5264 } else 5265 #endif 5266 #ifdef INET6 5267 if (addrs->addr->sa_family == AF_INET6) { 5268 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 5269 if (optsize < sz) { 5270 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5271 error = EINVAL; 5272 break; 5273 } 5274 if (td != NULL && 5275 (error = prison_local_ip6(td->td_ucred, 5276 &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), 5277 (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { 5278 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 5279 break; 5280 } 5281 } else 5282 #endif 5283 { 5284 error = EAFNOSUPPORT; 5285 break; 5286 } 5287 sctp_bindx_delete_address(inp, addrs->addr, 5288 addrs->sget_assoc_id, vrf_id, 5289 &error); 5290 break; 5291 } 5292 case SCTP_EVENT: 5293 { 5294 struct sctp_event *event; 5295 uint32_t event_type; 5296 5297 SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize); 5298 SCTP_FIND_STCB(inp, stcb, event->se_assoc_id); 5299 switch (event->se_type) { 5300 case SCTP_ASSOC_CHANGE: 5301 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT; 5302 break; 5303 case SCTP_PEER_ADDR_CHANGE: 5304 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT; 5305 break; 5306 case SCTP_REMOTE_ERROR: 5307 event_type = SCTP_PCB_FLAGS_RECVPEERERR; 5308 break; 5309 case SCTP_SEND_FAILED: 5310 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT; 5311 break; 5312 case SCTP_SHUTDOWN_EVENT: 5313 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT; 5314 break; 5315 case SCTP_ADAPTATION_INDICATION: 5316 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT; 5317 break; 5318 case SCTP_PARTIAL_DELIVERY_EVENT: 5319 event_type = SCTP_PCB_FLAGS_PDAPIEVNT; 5320 break; 5321 case SCTP_AUTHENTICATION_EVENT: 5322 event_type = SCTP_PCB_FLAGS_AUTHEVNT; 5323 break; 5324 case SCTP_STREAM_RESET_EVENT: 5325 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT; 5326 break; 5327 case SCTP_SENDER_DRY_EVENT: 5328 event_type = SCTP_PCB_FLAGS_DRYEVNT; 5329 break; 5330 case SCTP_NOTIFICATIONS_STOPPED_EVENT: 5331 event_type = 0; 5332 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP); 5333 error = ENOTSUP; 5334 break; 5335 default: 5336 event_type = 0; 5337 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5338 error = EINVAL; 5339 break; 5340 } 5341 if (event_type > 0) { 5342 if (stcb) { 5343 if (event->se_on) { 5344 sctp_stcb_feature_on(inp, stcb, event_type); 5345 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) { 5346 if (TAILQ_EMPTY(&stcb->asoc.send_queue) && 5347 TAILQ_EMPTY(&stcb->asoc.sent_queue) && 5348 (stcb->asoc.stream_queue_cnt == 0)) { 5349 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED); 5350 } 5351 } 5352 } else { 5353 sctp_stcb_feature_off(inp, stcb, event_type); 5354 } 5355 SCTP_TCB_UNLOCK(stcb); 5356 } else { 5357 /* 5358 * We don't want to send up a storm 5359 * of events, so return an error for 5360 * sender dry events 5361 */ 5362 if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) && 5363 ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) && 5364 ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) && 5365 ((event->se_assoc_id == SCTP_ALL_ASSOC) || 5366 (event->se_assoc_id == SCTP_CURRENT_ASSOC))) { 5367 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP); 5368 error = ENOTSUP; 5369 break; 5370 } 5371 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 5372 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 5373 (event->se_assoc_id == SCTP_FUTURE_ASSOC) || 5374 (event->se_assoc_id == SCTP_ALL_ASSOC)) { 5375 SCTP_INP_WLOCK(inp); 5376 if (event->se_on) { 5377 sctp_feature_on(inp, event_type); 5378 } else { 5379 sctp_feature_off(inp, event_type); 5380 } 5381 SCTP_INP_WUNLOCK(inp); 5382 } 5383 if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) || 5384 (event->se_assoc_id == SCTP_ALL_ASSOC)) { 5385 SCTP_INP_RLOCK(inp); 5386 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 5387 SCTP_TCB_LOCK(stcb); 5388 if (event->se_on) { 5389 sctp_stcb_feature_on(inp, stcb, event_type); 5390 } else { 5391 sctp_stcb_feature_off(inp, stcb, event_type); 5392 } 5393 SCTP_TCB_UNLOCK(stcb); 5394 } 5395 SCTP_INP_RUNLOCK(inp); 5396 } 5397 } 5398 } 5399 break; 5400 } 5401 case SCTP_RECVRCVINFO: 5402 { 5403 int *onoff; 5404 5405 SCTP_CHECK_AND_CAST(onoff, optval, int, optsize); 5406 SCTP_INP_WLOCK(inp); 5407 if (*onoff != 0) { 5408 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO); 5409 } else { 5410 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO); 5411 } 5412 SCTP_INP_WUNLOCK(inp); 5413 break; 5414 } 5415 case SCTP_RECVNXTINFO: 5416 { 5417 int *onoff; 5418 5419 SCTP_CHECK_AND_CAST(onoff, optval, int, optsize); 5420 SCTP_INP_WLOCK(inp); 5421 if (*onoff != 0) { 5422 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO); 5423 } else { 5424 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO); 5425 } 5426 SCTP_INP_WUNLOCK(inp); 5427 break; 5428 } 5429 case SCTP_DEFAULT_SNDINFO: 5430 { 5431 struct sctp_sndinfo *info; 5432 uint16_t policy; 5433 5434 SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize); 5435 SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id); 5436 5437 if (stcb) { 5438 if (info->snd_sid < stcb->asoc.streamoutcnt) { 5439 stcb->asoc.def_send.sinfo_stream = info->snd_sid; 5440 policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags); 5441 stcb->asoc.def_send.sinfo_flags = info->snd_flags; 5442 stcb->asoc.def_send.sinfo_flags |= policy; 5443 stcb->asoc.def_send.sinfo_ppid = info->snd_ppid; 5444 stcb->asoc.def_send.sinfo_context = info->snd_context; 5445 } else { 5446 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5447 error = EINVAL; 5448 } 5449 SCTP_TCB_UNLOCK(stcb); 5450 } else { 5451 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 5452 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 5453 (info->snd_assoc_id == SCTP_FUTURE_ASSOC) || 5454 (info->snd_assoc_id == SCTP_ALL_ASSOC)) { 5455 SCTP_INP_WLOCK(inp); 5456 inp->def_send.sinfo_stream = info->snd_sid; 5457 policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags); 5458 inp->def_send.sinfo_flags = info->snd_flags; 5459 inp->def_send.sinfo_flags |= policy; 5460 inp->def_send.sinfo_ppid = info->snd_ppid; 5461 inp->def_send.sinfo_context = info->snd_context; 5462 SCTP_INP_WUNLOCK(inp); 5463 } 5464 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) || 5465 (info->snd_assoc_id == SCTP_ALL_ASSOC)) { 5466 SCTP_INP_RLOCK(inp); 5467 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 5468 SCTP_TCB_LOCK(stcb); 5469 if (info->snd_sid < stcb->asoc.streamoutcnt) { 5470 stcb->asoc.def_send.sinfo_stream = info->snd_sid; 5471 policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags); 5472 stcb->asoc.def_send.sinfo_flags = info->snd_flags; 5473 stcb->asoc.def_send.sinfo_flags |= policy; 5474 stcb->asoc.def_send.sinfo_ppid = info->snd_ppid; 5475 stcb->asoc.def_send.sinfo_context = info->snd_context; 5476 } 5477 SCTP_TCB_UNLOCK(stcb); 5478 } 5479 SCTP_INP_RUNLOCK(inp); 5480 } 5481 } 5482 break; 5483 } 5484 case SCTP_DEFAULT_PRINFO: 5485 { 5486 struct sctp_default_prinfo *info; 5487 5488 SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize); 5489 SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id); 5490 5491 if (PR_SCTP_INVALID_POLICY(info->pr_policy)) { 5492 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5493 error = EINVAL; 5494 break; 5495 } 5496 if (stcb) { 5497 stcb->asoc.def_send.sinfo_flags &= 0xfff0; 5498 stcb->asoc.def_send.sinfo_flags |= info->pr_policy; 5499 stcb->asoc.def_send.sinfo_timetolive = info->pr_value; 5500 SCTP_TCB_UNLOCK(stcb); 5501 } else { 5502 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 5503 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 5504 (info->pr_assoc_id == SCTP_FUTURE_ASSOC) || 5505 (info->pr_assoc_id == SCTP_ALL_ASSOC)) { 5506 SCTP_INP_WLOCK(inp); 5507 inp->def_send.sinfo_flags &= 0xfff0; 5508 inp->def_send.sinfo_flags |= info->pr_policy; 5509 inp->def_send.sinfo_timetolive = info->pr_value; 5510 SCTP_INP_WUNLOCK(inp); 5511 } 5512 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) || 5513 (info->pr_assoc_id == SCTP_ALL_ASSOC)) { 5514 SCTP_INP_RLOCK(inp); 5515 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 5516 SCTP_TCB_LOCK(stcb); 5517 stcb->asoc.def_send.sinfo_flags &= 0xfff0; 5518 stcb->asoc.def_send.sinfo_flags |= info->pr_policy; 5519 stcb->asoc.def_send.sinfo_timetolive = info->pr_value; 5520 SCTP_TCB_UNLOCK(stcb); 5521 } 5522 SCTP_INP_RUNLOCK(inp); 5523 } 5524 } 5525 break; 5526 } 5527 case SCTP_PEER_ADDR_THLDS: 5528 /* Applies to the specific association */ 5529 { 5530 struct sctp_paddrthlds *thlds; 5531 struct sctp_nets *net; 5532 5533 SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize); 5534 SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id); 5535 net = NULL; 5536 if (stcb) { 5537 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_assoc_id); 5538 } else { 5539 /* 5540 * We increment here since 5541 * sctp_findassociation_ep_addr() wil do a 5542 * decrement if it finds the stcb as long as 5543 * the locked tcb (last argument) is NOT a 5544 * TCB.. aka NULL. 5545 */ 5546 SCTP_INP_INCR_REF(inp); 5547 stcb = sctp_findassociation_ep_addr(&inp, 5548 (struct sockaddr *)&thlds->spt_assoc_id, 5549 &net, NULL, NULL); 5550 if (stcb == NULL) { 5551 SCTP_INP_DECR_REF(inp); 5552 } 5553 } 5554 if (stcb && (net == NULL)) { 5555 struct sockaddr *sa; 5556 5557 sa = (struct sockaddr *)&thlds->spt_assoc_id; 5558 #ifdef INET 5559 if (sa->sa_family == AF_INET) { 5560 5561 struct sockaddr_in *sin; 5562 5563 sin = (struct sockaddr_in *)sa; 5564 if (sin->sin_addr.s_addr) { 5565 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5566 SCTP_TCB_UNLOCK(stcb); 5567 error = EINVAL; 5568 break; 5569 } 5570 } else 5571 #endif 5572 #ifdef INET6 5573 if (sa->sa_family == AF_INET6) { 5574 struct sockaddr_in6 *sin6; 5575 5576 sin6 = (struct sockaddr_in6 *)sa; 5577 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 5578 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5579 SCTP_TCB_UNLOCK(stcb); 5580 error = EINVAL; 5581 break; 5582 } 5583 } else 5584 #endif 5585 { 5586 error = EAFNOSUPPORT; 5587 SCTP_TCB_UNLOCK(stcb); 5588 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 5589 break; 5590 } 5591 } 5592 if (stcb) { 5593 if (net) { 5594 if (net->dest_state & SCTP_ADDR_PF) { 5595 if ((net->failure_threshold > thlds->spt_pathmaxrxt) || 5596 (net->failure_threshold <= thlds->spt_pathpfthld)) { 5597 net->dest_state &= ~SCTP_ADDR_PF; 5598 } 5599 } else { 5600 if ((net->failure_threshold > thlds->spt_pathpfthld) && 5601 (net->failure_threshold <= thlds->spt_pathmaxrxt)) { 5602 net->dest_state |= SCTP_ADDR_PF; 5603 sctp_send_hb(stcb, net, SCTP_SO_LOCKED); 5604 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3); 5605 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net); 5606 } 5607 } 5608 if (net->dest_state & SCTP_ADDR_REACHABLE) { 5609 if (net->failure_threshold > thlds->spt_pathmaxrxt) { 5610 net->dest_state &= ~SCTP_ADDR_REACHABLE; 5611 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED); 5612 } 5613 } else { 5614 if (net->failure_threshold <= thlds->spt_pathmaxrxt) { 5615 net->dest_state |= SCTP_ADDR_REACHABLE; 5616 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED); 5617 } 5618 } 5619 net->failure_threshold = thlds->spt_pathmaxrxt; 5620 net->pf_threshold = thlds->spt_pathpfthld; 5621 } else { 5622 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 5623 if (net->dest_state & SCTP_ADDR_PF) { 5624 if ((net->failure_threshold > thlds->spt_pathmaxrxt) || 5625 (net->failure_threshold <= thlds->spt_pathpfthld)) { 5626 net->dest_state &= ~SCTP_ADDR_PF; 5627 } 5628 } else { 5629 if ((net->failure_threshold > thlds->spt_pathpfthld) && 5630 (net->failure_threshold <= thlds->spt_pathmaxrxt)) { 5631 net->dest_state |= SCTP_ADDR_PF; 5632 sctp_send_hb(stcb, net, SCTP_SO_LOCKED); 5633 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3); 5634 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net); 5635 } 5636 } 5637 if (net->dest_state & SCTP_ADDR_REACHABLE) { 5638 if (net->failure_threshold > thlds->spt_pathmaxrxt) { 5639 net->dest_state &= ~SCTP_ADDR_REACHABLE; 5640 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED); 5641 } 5642 } else { 5643 if (net->failure_threshold <= thlds->spt_pathmaxrxt) { 5644 net->dest_state |= SCTP_ADDR_REACHABLE; 5645 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED); 5646 } 5647 } 5648 net->failure_threshold = thlds->spt_pathmaxrxt; 5649 net->pf_threshold = thlds->spt_pathpfthld; 5650 } 5651 stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt; 5652 stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld; 5653 } 5654 } else { 5655 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 5656 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 5657 (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) { 5658 SCTP_INP_WLOCK(inp); 5659 inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt; 5660 inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld; 5661 SCTP_INP_WUNLOCK(inp); 5662 } else { 5663 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5664 error = EINVAL; 5665 } 5666 } 5667 break; 5668 } 5669 case SCTP_REMOTE_UDP_ENCAPS_PORT: 5670 { 5671 struct sctp_udpencaps *encaps; 5672 struct sctp_nets *net; 5673 5674 SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize); 5675 SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id); 5676 if (stcb) { 5677 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address); 5678 } else { 5679 /* 5680 * We increment here since 5681 * sctp_findassociation_ep_addr() wil do a 5682 * decrement if it finds the stcb as long as 5683 * the locked tcb (last argument) is NOT a 5684 * TCB.. aka NULL. 5685 */ 5686 net = NULL; 5687 SCTP_INP_INCR_REF(inp); 5688 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL); 5689 if (stcb == NULL) { 5690 SCTP_INP_DECR_REF(inp); 5691 } 5692 } 5693 if (stcb && (net == NULL)) { 5694 struct sockaddr *sa; 5695 5696 sa = (struct sockaddr *)&encaps->sue_address; 5697 #ifdef INET 5698 if (sa->sa_family == AF_INET) { 5699 5700 struct sockaddr_in *sin; 5701 5702 sin = (struct sockaddr_in *)sa; 5703 if (sin->sin_addr.s_addr) { 5704 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5705 SCTP_TCB_UNLOCK(stcb); 5706 error = EINVAL; 5707 break; 5708 } 5709 } else 5710 #endif 5711 #ifdef INET6 5712 if (sa->sa_family == AF_INET6) { 5713 struct sockaddr_in6 *sin6; 5714 5715 sin6 = (struct sockaddr_in6 *)sa; 5716 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 5717 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5718 SCTP_TCB_UNLOCK(stcb); 5719 error = EINVAL; 5720 break; 5721 } 5722 } else 5723 #endif 5724 { 5725 error = EAFNOSUPPORT; 5726 SCTP_TCB_UNLOCK(stcb); 5727 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 5728 break; 5729 } 5730 } 5731 if (stcb) { 5732 if (net) { 5733 net->port = encaps->sue_port; 5734 } else { 5735 stcb->asoc.port = encaps->sue_port; 5736 } 5737 SCTP_TCB_UNLOCK(stcb); 5738 } else { 5739 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 5740 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || 5741 (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) { 5742 SCTP_INP_WLOCK(inp); 5743 inp->sctp_ep.port = encaps->sue_port; 5744 SCTP_INP_WUNLOCK(inp); 5745 } else { 5746 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5747 error = EINVAL; 5748 } 5749 } 5750 break; 5751 } 5752 default: 5753 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 5754 error = ENOPROTOOPT; 5755 break; 5756 } /* end switch (opt) */ 5757 return (error); 5758 } 5759 5760 int 5761 sctp_ctloutput(struct socket *so, struct sockopt *sopt) 5762 { 5763 void *optval = NULL; 5764 size_t optsize = 0; 5765 struct sctp_inpcb *inp; 5766 void *p; 5767 int error = 0; 5768 5769 inp = (struct sctp_inpcb *)so->so_pcb; 5770 if (inp == 0) { 5771 /* I made the same as TCP since we are not setup? */ 5772 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5773 return (ECONNRESET); 5774 } 5775 if (sopt->sopt_level != IPPROTO_SCTP) { 5776 /* wrong proto level... send back up to IP */ 5777 #ifdef INET6 5778 if (INP_CHECK_SOCKAF(so, AF_INET6)) 5779 error = ip6_ctloutput(so, sopt); 5780 #endif /* INET6 */ 5781 #if defined(INET) && defined (INET6) 5782 else 5783 #endif 5784 #ifdef INET 5785 error = ip_ctloutput(so, sopt); 5786 #endif 5787 return (error); 5788 } 5789 optsize = sopt->sopt_valsize; 5790 if (optsize) { 5791 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT); 5792 if (optval == NULL) { 5793 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS); 5794 return (ENOBUFS); 5795 } 5796 error = sooptcopyin(sopt, optval, optsize, optsize); 5797 if (error) { 5798 SCTP_FREE(optval, SCTP_M_SOCKOPT); 5799 goto out; 5800 } 5801 } 5802 p = (void *)sopt->sopt_td; 5803 if (sopt->sopt_dir == SOPT_SET) { 5804 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p); 5805 } else if (sopt->sopt_dir == SOPT_GET) { 5806 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p); 5807 } else { 5808 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5809 error = EINVAL; 5810 } 5811 if ((error == 0) && (optval != NULL)) { 5812 error = sooptcopyout(sopt, optval, optsize); 5813 SCTP_FREE(optval, SCTP_M_SOCKOPT); 5814 } else if (optval != NULL) { 5815 SCTP_FREE(optval, SCTP_M_SOCKOPT); 5816 } 5817 out: 5818 return (error); 5819 } 5820 5821 #ifdef INET 5822 static int 5823 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p) 5824 { 5825 int error = 0; 5826 int create_lock_on = 0; 5827 uint32_t vrf_id; 5828 struct sctp_inpcb *inp; 5829 struct sctp_tcb *stcb = NULL; 5830 5831 inp = (struct sctp_inpcb *)so->so_pcb; 5832 if (inp == 0) { 5833 /* I made the same as TCP since we are not setup? */ 5834 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5835 return (ECONNRESET); 5836 } 5837 if (addr == NULL) { 5838 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5839 return EINVAL; 5840 } 5841 switch (addr->sa_family) { 5842 #ifdef INET6 5843 case AF_INET6: 5844 { 5845 struct sockaddr_in6 *sin6p; 5846 5847 if (addr->sa_len != sizeof(struct sockaddr_in6)) { 5848 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5849 return (EINVAL); 5850 } 5851 sin6p = (struct sockaddr_in6 *)addr; 5852 if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) { 5853 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 5854 return (error); 5855 } 5856 break; 5857 } 5858 #endif 5859 #ifdef INET 5860 case AF_INET: 5861 { 5862 struct sockaddr_in *sinp; 5863 5864 if (addr->sa_len != sizeof(struct sockaddr_in)) { 5865 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5866 return (EINVAL); 5867 } 5868 sinp = (struct sockaddr_in *)addr; 5869 if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) { 5870 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 5871 return (error); 5872 } 5873 break; 5874 } 5875 #endif 5876 default: 5877 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT); 5878 return (EAFNOSUPPORT); 5879 } 5880 SCTP_INP_INCR_REF(inp); 5881 SCTP_ASOC_CREATE_LOCK(inp); 5882 create_lock_on = 1; 5883 5884 5885 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 5886 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 5887 /* Should I really unlock ? */ 5888 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 5889 error = EFAULT; 5890 goto out_now; 5891 } 5892 #ifdef INET6 5893 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 5894 (addr->sa_family == AF_INET6)) { 5895 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5896 error = EINVAL; 5897 goto out_now; 5898 } 5899 #endif /* INET6 */ 5900 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 5901 SCTP_PCB_FLAGS_UNBOUND) { 5902 /* Bind a ephemeral port */ 5903 error = sctp_inpcb_bind(so, NULL, NULL, p); 5904 if (error) { 5905 goto out_now; 5906 } 5907 } 5908 /* Now do we connect? */ 5909 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) && 5910 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) { 5911 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5912 error = EINVAL; 5913 goto out_now; 5914 } 5915 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 5916 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 5917 /* We are already connected AND the TCP model */ 5918 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 5919 error = EADDRINUSE; 5920 goto out_now; 5921 } 5922 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 5923 SCTP_INP_RLOCK(inp); 5924 stcb = LIST_FIRST(&inp->sctp_asoc_list); 5925 SCTP_INP_RUNLOCK(inp); 5926 } else { 5927 /* 5928 * We increment here since sctp_findassociation_ep_addr() 5929 * will do a decrement if it finds the stcb as long as the 5930 * locked tcb (last argument) is NOT a TCB.. aka NULL. 5931 */ 5932 SCTP_INP_INCR_REF(inp); 5933 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL); 5934 if (stcb == NULL) { 5935 SCTP_INP_DECR_REF(inp); 5936 } else { 5937 SCTP_TCB_UNLOCK(stcb); 5938 } 5939 } 5940 if (stcb != NULL) { 5941 /* Already have or am bring up an association */ 5942 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 5943 error = EALREADY; 5944 goto out_now; 5945 } 5946 vrf_id = inp->def_vrf_id; 5947 /* We are GOOD to go */ 5948 stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p); 5949 if (stcb == NULL) { 5950 /* Gak! no memory */ 5951 goto out_now; 5952 } 5953 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 5954 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 5955 /* Set the connected flag so we can queue data */ 5956 soisconnecting(so); 5957 } 5958 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 5959 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 5960 5961 /* initialize authentication parameters for the assoc */ 5962 sctp_initialize_auth_params(inp, stcb); 5963 5964 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 5965 SCTP_TCB_UNLOCK(stcb); 5966 out_now: 5967 if (create_lock_on) { 5968 SCTP_ASOC_CREATE_UNLOCK(inp); 5969 } 5970 SCTP_INP_DECR_REF(inp); 5971 return error; 5972 } 5973 5974 #endif 5975 5976 int 5977 sctp_listen(struct socket *so, int backlog, struct thread *p) 5978 { 5979 /* 5980 * Note this module depends on the protocol processing being called 5981 * AFTER any socket level flags and backlog are applied to the 5982 * socket. The traditional way that the socket flags are applied is 5983 * AFTER protocol processing. We have made a change to the 5984 * sys/kern/uipc_socket.c module to reverse this but this MUST be in 5985 * place if the socket API for SCTP is to work properly. 5986 */ 5987 5988 int error = 0; 5989 struct sctp_inpcb *inp; 5990 5991 inp = (struct sctp_inpcb *)so->so_pcb; 5992 if (inp == 0) { 5993 /* I made the same as TCP since we are not setup? */ 5994 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5995 return (ECONNRESET); 5996 } 5997 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) { 5998 /* See if we have a listener */ 5999 struct sctp_inpcb *tinp; 6000 union sctp_sockstore store, *sp; 6001 6002 sp = &store; 6003 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 6004 /* not bound all */ 6005 struct sctp_laddr *laddr; 6006 6007 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 6008 memcpy(&store, &laddr->ifa->address, sizeof(store)); 6009 switch (sp->sa.sa_family) { 6010 #ifdef INET 6011 case AF_INET: 6012 sp->sin.sin_port = inp->sctp_lport; 6013 break; 6014 #endif 6015 #ifdef INET6 6016 case AF_INET6: 6017 sp->sin6.sin6_port = inp->sctp_lport; 6018 break; 6019 #endif 6020 default: 6021 break; 6022 } 6023 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id); 6024 if (tinp && (tinp != inp) && 6025 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) && 6026 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 6027 (tinp->sctp_socket->so_qlimit)) { 6028 /* 6029 * we have a listener already and 6030 * its not this inp. 6031 */ 6032 SCTP_INP_DECR_REF(tinp); 6033 return (EADDRINUSE); 6034 } else if (tinp) { 6035 SCTP_INP_DECR_REF(tinp); 6036 } 6037 } 6038 } else { 6039 /* Setup a local addr bound all */ 6040 memset(&store, 0, sizeof(store)); 6041 switch (sp->sa.sa_family) { 6042 #ifdef INET 6043 case AF_INET: 6044 store.sin.sin_port = inp->sctp_lport; 6045 break; 6046 #endif 6047 #ifdef INET6 6048 case AF_INET6: 6049 sp->sin6.sin6_port = inp->sctp_lport; 6050 break; 6051 #endif 6052 default: 6053 break; 6054 } 6055 #ifdef INET6 6056 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 6057 store.sa.sa_family = AF_INET6; 6058 store.sa.sa_len = sizeof(struct sockaddr_in6); 6059 } 6060 #endif 6061 #ifdef INET 6062 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) { 6063 store.sa.sa_family = AF_INET; 6064 store.sa.sa_len = sizeof(struct sockaddr_in); 6065 } 6066 #endif 6067 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id); 6068 if (tinp && (tinp != inp) && 6069 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) && 6070 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 6071 (tinp->sctp_socket->so_qlimit)) { 6072 /* 6073 * we have a listener already and its not 6074 * this inp. 6075 */ 6076 SCTP_INP_DECR_REF(tinp); 6077 return (EADDRINUSE); 6078 } else if (tinp) { 6079 SCTP_INP_DECR_REF(inp); 6080 } 6081 } 6082 } 6083 SCTP_INP_RLOCK(inp); 6084 #ifdef SCTP_LOCK_LOGGING 6085 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) { 6086 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK); 6087 } 6088 #endif 6089 SOCK_LOCK(so); 6090 error = solisten_proto_check(so); 6091 if (error) { 6092 SOCK_UNLOCK(so); 6093 SCTP_INP_RUNLOCK(inp); 6094 return (error); 6095 } 6096 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) && 6097 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 6098 /* 6099 * The unlucky case - We are in the tcp pool with this guy. 6100 * - Someone else is in the main inp slot. - We must move 6101 * this guy (the listener) to the main slot - We must then 6102 * move the guy that was listener to the TCP Pool. 6103 */ 6104 if (sctp_swap_inpcb_for_listen(inp)) { 6105 goto in_use; 6106 } 6107 } 6108 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 6109 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 6110 /* We are already connected AND the TCP model */ 6111 in_use: 6112 SCTP_INP_RUNLOCK(inp); 6113 SOCK_UNLOCK(so); 6114 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 6115 return (EADDRINUSE); 6116 } 6117 SCTP_INP_RUNLOCK(inp); 6118 if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) { 6119 /* We must do a bind. */ 6120 SOCK_UNLOCK(so); 6121 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) { 6122 /* bind error, probably perm */ 6123 return (error); 6124 } 6125 SOCK_LOCK(so); 6126 } 6127 /* It appears for 7.0 and on, we must always call this. */ 6128 solisten_proto(so, backlog); 6129 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 6130 /* remove the ACCEPTCONN flag for one-to-many sockets */ 6131 so->so_options &= ~SO_ACCEPTCONN; 6132 } 6133 if (backlog == 0) { 6134 /* turning off listen */ 6135 so->so_options &= ~SO_ACCEPTCONN; 6136 } 6137 SOCK_UNLOCK(so); 6138 return (error); 6139 } 6140 6141 static int sctp_defered_wakeup_cnt = 0; 6142 6143 int 6144 sctp_accept(struct socket *so, struct sockaddr **addr) 6145 { 6146 struct sctp_tcb *stcb; 6147 struct sctp_inpcb *inp; 6148 union sctp_sockstore store; 6149 6150 #ifdef INET6 6151 int error; 6152 6153 #endif 6154 inp = (struct sctp_inpcb *)so->so_pcb; 6155 6156 if (inp == 0) { 6157 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 6158 return (ECONNRESET); 6159 } 6160 SCTP_INP_RLOCK(inp); 6161 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 6162 SCTP_INP_RUNLOCK(inp); 6163 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 6164 return (EOPNOTSUPP); 6165 } 6166 if (so->so_state & SS_ISDISCONNECTED) { 6167 SCTP_INP_RUNLOCK(inp); 6168 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED); 6169 return (ECONNABORTED); 6170 } 6171 stcb = LIST_FIRST(&inp->sctp_asoc_list); 6172 if (stcb == NULL) { 6173 SCTP_INP_RUNLOCK(inp); 6174 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 6175 return (ECONNRESET); 6176 } 6177 SCTP_TCB_LOCK(stcb); 6178 SCTP_INP_RUNLOCK(inp); 6179 store = stcb->asoc.primary_destination->ro._l_addr; 6180 stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE; 6181 SCTP_TCB_UNLOCK(stcb); 6182 switch (store.sa.sa_family) { 6183 #ifdef INET 6184 case AF_INET: 6185 { 6186 struct sockaddr_in *sin; 6187 6188 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 6189 if (sin == NULL) 6190 return (ENOMEM); 6191 sin->sin_family = AF_INET; 6192 sin->sin_len = sizeof(*sin); 6193 sin->sin_port = ((struct sockaddr_in *)&store)->sin_port; 6194 sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr; 6195 *addr = (struct sockaddr *)sin; 6196 break; 6197 } 6198 #endif 6199 #ifdef INET6 6200 case AF_INET6: 6201 { 6202 struct sockaddr_in6 *sin6; 6203 6204 SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6); 6205 if (sin6 == NULL) 6206 return (ENOMEM); 6207 sin6->sin6_family = AF_INET6; 6208 sin6->sin6_len = sizeof(*sin6); 6209 sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port; 6210 6211 sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr; 6212 if ((error = sa6_recoverscope(sin6)) != 0) { 6213 SCTP_FREE_SONAME(sin6); 6214 return (error); 6215 } 6216 *addr = (struct sockaddr *)sin6; 6217 break; 6218 } 6219 #endif 6220 default: 6221 /* TSNH */ 6222 break; 6223 } 6224 /* Wake any delayed sleep action */ 6225 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { 6226 SCTP_INP_WLOCK(inp); 6227 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE; 6228 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) { 6229 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT; 6230 SCTP_INP_WUNLOCK(inp); 6231 SOCKBUF_LOCK(&inp->sctp_socket->so_snd); 6232 if (sowriteable(inp->sctp_socket)) { 6233 sowwakeup_locked(inp->sctp_socket); 6234 } else { 6235 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd); 6236 } 6237 SCTP_INP_WLOCK(inp); 6238 } 6239 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) { 6240 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT; 6241 SCTP_INP_WUNLOCK(inp); 6242 SOCKBUF_LOCK(&inp->sctp_socket->so_rcv); 6243 if (soreadable(inp->sctp_socket)) { 6244 sctp_defered_wakeup_cnt++; 6245 sorwakeup_locked(inp->sctp_socket); 6246 } else { 6247 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv); 6248 } 6249 SCTP_INP_WLOCK(inp); 6250 } 6251 SCTP_INP_WUNLOCK(inp); 6252 } 6253 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 6254 SCTP_TCB_LOCK(stcb); 6255 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7); 6256 } 6257 return (0); 6258 } 6259 6260 #ifdef INET 6261 int 6262 sctp_ingetaddr(struct socket *so, struct sockaddr **addr) 6263 { 6264 struct sockaddr_in *sin; 6265 uint32_t vrf_id; 6266 struct sctp_inpcb *inp; 6267 struct sctp_ifa *sctp_ifa; 6268 6269 /* 6270 * Do the malloc first in case it blocks. 6271 */ 6272 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 6273 if (sin == NULL) 6274 return (ENOMEM); 6275 sin->sin_family = AF_INET; 6276 sin->sin_len = sizeof(*sin); 6277 inp = (struct sctp_inpcb *)so->so_pcb; 6278 if (!inp) { 6279 SCTP_FREE_SONAME(sin); 6280 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 6281 return ECONNRESET; 6282 } 6283 SCTP_INP_RLOCK(inp); 6284 sin->sin_port = inp->sctp_lport; 6285 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 6286 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 6287 struct sctp_tcb *stcb; 6288 struct sockaddr_in *sin_a; 6289 struct sctp_nets *net; 6290 int fnd; 6291 6292 stcb = LIST_FIRST(&inp->sctp_asoc_list); 6293 if (stcb == NULL) { 6294 goto notConn; 6295 } 6296 fnd = 0; 6297 sin_a = NULL; 6298 SCTP_TCB_LOCK(stcb); 6299 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 6300 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 6301 if (sin_a == NULL) 6302 /* this will make coverity happy */ 6303 continue; 6304 6305 if (sin_a->sin_family == AF_INET) { 6306 fnd = 1; 6307 break; 6308 } 6309 } 6310 if ((!fnd) || (sin_a == NULL)) { 6311 /* punt */ 6312 SCTP_TCB_UNLOCK(stcb); 6313 goto notConn; 6314 } 6315 vrf_id = inp->def_vrf_id; 6316 sctp_ifa = sctp_source_address_selection(inp, 6317 stcb, 6318 (sctp_route_t *) & net->ro, 6319 net, 0, vrf_id); 6320 if (sctp_ifa) { 6321 sin->sin_addr = sctp_ifa->address.sin.sin_addr; 6322 sctp_free_ifa(sctp_ifa); 6323 } 6324 SCTP_TCB_UNLOCK(stcb); 6325 } else { 6326 /* For the bound all case you get back 0 */ 6327 notConn: 6328 sin->sin_addr.s_addr = 0; 6329 } 6330 6331 } else { 6332 /* Take the first IPv4 address in the list */ 6333 struct sctp_laddr *laddr; 6334 int fnd = 0; 6335 6336 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 6337 if (laddr->ifa->address.sa.sa_family == AF_INET) { 6338 struct sockaddr_in *sin_a; 6339 6340 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa; 6341 sin->sin_addr = sin_a->sin_addr; 6342 fnd = 1; 6343 break; 6344 } 6345 } 6346 if (!fnd) { 6347 SCTP_FREE_SONAME(sin); 6348 SCTP_INP_RUNLOCK(inp); 6349 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 6350 return ENOENT; 6351 } 6352 } 6353 SCTP_INP_RUNLOCK(inp); 6354 (*addr) = (struct sockaddr *)sin; 6355 return (0); 6356 } 6357 6358 int 6359 sctp_peeraddr(struct socket *so, struct sockaddr **addr) 6360 { 6361 struct sockaddr_in *sin = (struct sockaddr_in *)*addr; 6362 int fnd; 6363 struct sockaddr_in *sin_a; 6364 struct sctp_inpcb *inp; 6365 struct sctp_tcb *stcb; 6366 struct sctp_nets *net; 6367 6368 /* Do the malloc first in case it blocks. */ 6369 inp = (struct sctp_inpcb *)so->so_pcb; 6370 if ((inp == NULL) || 6371 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { 6372 /* UDP type and listeners will drop out here */ 6373 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 6374 return (ENOTCONN); 6375 } 6376 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 6377 if (sin == NULL) 6378 return (ENOMEM); 6379 sin->sin_family = AF_INET; 6380 sin->sin_len = sizeof(*sin); 6381 6382 /* We must recapture incase we blocked */ 6383 inp = (struct sctp_inpcb *)so->so_pcb; 6384 if (!inp) { 6385 SCTP_FREE_SONAME(sin); 6386 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 6387 return ECONNRESET; 6388 } 6389 SCTP_INP_RLOCK(inp); 6390 stcb = LIST_FIRST(&inp->sctp_asoc_list); 6391 if (stcb) { 6392 SCTP_TCB_LOCK(stcb); 6393 } 6394 SCTP_INP_RUNLOCK(inp); 6395 if (stcb == NULL) { 6396 SCTP_FREE_SONAME(sin); 6397 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 6398 return ECONNRESET; 6399 } 6400 fnd = 0; 6401 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 6402 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 6403 if (sin_a->sin_family == AF_INET) { 6404 fnd = 1; 6405 sin->sin_port = stcb->rport; 6406 sin->sin_addr = sin_a->sin_addr; 6407 break; 6408 } 6409 } 6410 SCTP_TCB_UNLOCK(stcb); 6411 if (!fnd) { 6412 /* No IPv4 address */ 6413 SCTP_FREE_SONAME(sin); 6414 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 6415 return ENOENT; 6416 } 6417 (*addr) = (struct sockaddr *)sin; 6418 return (0); 6419 } 6420 6421 #ifdef INET 6422 struct pr_usrreqs sctp_usrreqs = { 6423 .pru_abort = sctp_abort, 6424 .pru_accept = sctp_accept, 6425 .pru_attach = sctp_attach, 6426 .pru_bind = sctp_bind, 6427 .pru_connect = sctp_connect, 6428 .pru_control = in_control, 6429 .pru_close = sctp_close, 6430 .pru_detach = sctp_close, 6431 .pru_sopoll = sopoll_generic, 6432 .pru_flush = sctp_flush, 6433 .pru_disconnect = sctp_disconnect, 6434 .pru_listen = sctp_listen, 6435 .pru_peeraddr = sctp_peeraddr, 6436 .pru_send = sctp_sendm, 6437 .pru_shutdown = sctp_shutdown, 6438 .pru_sockaddr = sctp_ingetaddr, 6439 .pru_sosend = sctp_sosend, 6440 .pru_soreceive = sctp_soreceive 6441 }; 6442 6443 #endif 6444 #endif 6445