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_inpcb *inp, 105 struct sctp_tcb *stcb, 106 struct sctp_nets *net, 107 uint16_t nxtsz) 108 { 109 struct sctp_tmit_chunk *chk; 110 uint16_t overhead; 111 112 /* Adjust that too */ 113 stcb->asoc.smallest_mtu = nxtsz; 114 /* now off to subtract IP_DF flag if needed */ 115 overhead = IP_HDR_SIZE; 116 if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) { 117 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id); 118 } 119 TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) { 120 if ((chk->send_size + overhead) > nxtsz) { 121 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 122 } 123 } 124 TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { 125 if ((chk->send_size + overhead) > nxtsz) { 126 /* 127 * For this guy we also mark for immediate resend 128 * since we sent to big of chunk 129 */ 130 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 131 if (chk->sent < SCTP_DATAGRAM_RESEND) { 132 sctp_flight_size_decrease(chk); 133 sctp_total_flight_decrease(stcb, chk); 134 } 135 if (chk->sent != SCTP_DATAGRAM_RESEND) { 136 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt); 137 } 138 chk->sent = SCTP_DATAGRAM_RESEND; 139 chk->rec.data.doing_fast_retransmit = 0; 140 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) { 141 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU, 142 chk->whoTo->flight_size, 143 chk->book_size, 144 (uintptr_t) chk->whoTo, 145 chk->rec.data.TSN_seq); 146 } 147 /* Clear any time so NO RTT is being done */ 148 chk->do_rtt = 0; 149 } 150 } 151 } 152 153 static void 154 sctp_notify_mbuf(struct sctp_inpcb *inp, 155 struct sctp_tcb *stcb, 156 struct sctp_nets *net, 157 struct ip *ip, 158 struct sctphdr *sh) 159 { 160 struct icmp *icmph; 161 int totsz, tmr_stopped = 0; 162 uint16_t nxtsz; 163 164 /* protection */ 165 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 166 (ip == NULL) || (sh == NULL)) { 167 if (stcb != NULL) { 168 SCTP_TCB_UNLOCK(stcb); 169 } 170 return; 171 } 172 /* First job is to verify the vtag matches what I would send */ 173 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 174 SCTP_TCB_UNLOCK(stcb); 175 return; 176 } 177 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 178 sizeof(struct ip))); 179 if (icmph->icmp_type != ICMP_UNREACH) { 180 /* We only care about unreachable */ 181 SCTP_TCB_UNLOCK(stcb); 182 return; 183 } 184 if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) { 185 /* not a unreachable message due to frag. */ 186 SCTP_TCB_UNLOCK(stcb); 187 return; 188 } 189 totsz = ip->ip_len; 190 191 nxtsz = ntohs(icmph->icmp_nextmtu); 192 if (nxtsz == 0) { 193 /* 194 * old type router that does not tell us what the next size 195 * mtu is. Rats we will have to guess (in a educated fashion 196 * of course) 197 */ 198 nxtsz = sctp_get_prev_mtu(totsz); 199 } 200 /* Stop any PMTU timer */ 201 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 202 tmr_stopped = 1; 203 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 204 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1); 205 } 206 /* Adjust destination size limit */ 207 if (net->mtu > nxtsz) { 208 net->mtu = nxtsz; 209 if (net->port) { 210 net->mtu -= sizeof(struct udphdr); 211 } 212 } 213 /* now what about the ep? */ 214 if (stcb->asoc.smallest_mtu > nxtsz) { 215 sctp_pathmtu_adjustment(inp, stcb, net, nxtsz); 216 } 217 if (tmr_stopped) 218 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 219 220 SCTP_TCB_UNLOCK(stcb); 221 } 222 223 224 void 225 sctp_notify(struct sctp_inpcb *inp, 226 struct ip *ip, 227 struct sctphdr *sh, 228 struct sockaddr *to, 229 struct sctp_tcb *stcb, 230 struct sctp_nets *net) 231 { 232 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 233 struct socket *so; 234 235 #endif 236 /* protection */ 237 int reason; 238 struct icmp *icmph; 239 240 241 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 242 (sh == NULL) || (to == NULL)) { 243 if (stcb) 244 SCTP_TCB_UNLOCK(stcb); 245 return; 246 } 247 /* First job is to verify the vtag matches what I would send */ 248 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 249 SCTP_TCB_UNLOCK(stcb); 250 return; 251 } 252 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 253 sizeof(struct ip))); 254 if (icmph->icmp_type != ICMP_UNREACH) { 255 /* We only care about unreachable */ 256 SCTP_TCB_UNLOCK(stcb); 257 return; 258 } 259 if ((icmph->icmp_code == ICMP_UNREACH_NET) || 260 (icmph->icmp_code == ICMP_UNREACH_HOST) || 261 (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) || 262 (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) || 263 (icmph->icmp_code == ICMP_UNREACH_ISOLATED) || 264 (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) || 265 (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) || 266 (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) { 267 268 /* 269 * Hmm reachablity problems we must examine closely. If its 270 * not reachable, we may have lost a network. Or if there is 271 * NO protocol at the other end named SCTP. well we consider 272 * it a OOTB abort. 273 */ 274 if (net->dest_state & SCTP_ADDR_REACHABLE) { 275 /* Ok that destination is NOT reachable */ 276 SCTP_PRINTF("ICMP (thresh %d/%d) takes interface %p down\n", 277 net->error_count, 278 net->failure_threshold, 279 net); 280 281 net->dest_state &= ~SCTP_ADDR_REACHABLE; 282 net->dest_state |= SCTP_ADDR_NOT_REACHABLE; 283 /* 284 * JRS 5/14/07 - If a destination is unreachable, 285 * the PF bit is turned off. This allows an 286 * unambiguous use of the PF bit for destinations 287 * that are reachable but potentially failed. If the 288 * destination is set to the unreachable state, also 289 * set the destination to the PF state. 290 */ 291 /* 292 * Add debug message here if destination is not in 293 * PF state. 294 */ 295 /* Stop any running T3 timers here? */ 296 if ((stcb->asoc.sctp_cmt_on_off > 0) && 297 (stcb->asoc.sctp_cmt_pf > 0)) { 298 net->dest_state &= ~SCTP_ADDR_PF; 299 SCTPDBG(SCTP_DEBUG_TIMER4, "Destination %p moved from PF to unreachable.\n", 300 net); 301 } 302 net->error_count = net->failure_threshold + 1; 303 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, 304 stcb, SCTP_FAILED_THRESHOLD, 305 (void *)net, SCTP_SO_NOT_LOCKED); 306 } 307 SCTP_TCB_UNLOCK(stcb); 308 } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) || 309 (icmph->icmp_code == ICMP_UNREACH_PORT)) { 310 /* 311 * Here the peer is either playing tricks on us, including 312 * an address that belongs to someone who does not support 313 * SCTP OR was a userland implementation that shutdown and 314 * now is dead. In either case treat it like a OOTB abort 315 * with no TCB 316 */ 317 reason = SCTP_PEER_FAULTY; 318 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED); 319 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 320 so = SCTP_INP_SO(inp); 321 atomic_add_int(&stcb->asoc.refcnt, 1); 322 SCTP_TCB_UNLOCK(stcb); 323 SCTP_SOCKET_LOCK(so, 1); 324 SCTP_TCB_LOCK(stcb); 325 atomic_subtract_int(&stcb->asoc.refcnt, 1); 326 #endif 327 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2); 328 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 329 SCTP_SOCKET_UNLOCK(so, 1); 330 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */ 331 #endif 332 /* no need to unlock here, since the TCB is gone */ 333 } else { 334 SCTP_TCB_UNLOCK(stcb); 335 } 336 } 337 338 void 339 sctp_ctlinput(cmd, sa, vip) 340 int cmd; 341 struct sockaddr *sa; 342 void *vip; 343 { 344 struct ip *ip = vip; 345 struct sctphdr *sh; 346 uint32_t vrf_id; 347 348 /* FIX, for non-bsd is this right? */ 349 vrf_id = SCTP_DEFAULT_VRFID; 350 if (sa->sa_family != AF_INET || 351 ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) { 352 return; 353 } 354 if (PRC_IS_REDIRECT(cmd)) { 355 ip = 0; 356 } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) { 357 return; 358 } 359 if (ip) { 360 struct sctp_inpcb *inp = NULL; 361 struct sctp_tcb *stcb = NULL; 362 struct sctp_nets *net = NULL; 363 struct sockaddr_in to, from; 364 365 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2)); 366 bzero(&to, sizeof(to)); 367 bzero(&from, sizeof(from)); 368 from.sin_family = to.sin_family = AF_INET; 369 from.sin_len = to.sin_len = sizeof(to); 370 from.sin_port = sh->src_port; 371 from.sin_addr = ip->ip_src; 372 to.sin_port = sh->dest_port; 373 to.sin_addr = ip->ip_dst; 374 375 /* 376 * 'to' holds the dest of the packet that failed to be sent. 377 * 'from' holds our local endpoint address. Thus we reverse 378 * the to and the from in the lookup. 379 */ 380 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from, 381 (struct sockaddr *)&to, 382 &inp, &net, 1, vrf_id); 383 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) { 384 if (cmd != PRC_MSGSIZE) { 385 sctp_notify(inp, ip, sh, 386 (struct sockaddr *)&to, stcb, 387 net); 388 } else { 389 /* handle possible ICMP size messages */ 390 sctp_notify_mbuf(inp, stcb, net, ip, sh); 391 } 392 } else { 393 if ((stcb == NULL) && (inp != NULL)) { 394 /* reduce ref-count */ 395 SCTP_INP_WLOCK(inp); 396 SCTP_INP_DECR_REF(inp); 397 SCTP_INP_WUNLOCK(inp); 398 } 399 if (stcb) { 400 SCTP_TCB_UNLOCK(stcb); 401 } 402 } 403 } 404 return; 405 } 406 407 static int 408 sctp_getcred(SYSCTL_HANDLER_ARGS) 409 { 410 struct xucred xuc; 411 struct sockaddr_in addrs[2]; 412 struct sctp_inpcb *inp; 413 struct sctp_nets *net; 414 struct sctp_tcb *stcb; 415 int error; 416 uint32_t vrf_id; 417 418 /* FIX, for non-bsd is this right? */ 419 vrf_id = SCTP_DEFAULT_VRFID; 420 421 error = priv_check(req->td, PRIV_NETINET_GETCRED); 422 423 if (error) 424 return (error); 425 426 error = SYSCTL_IN(req, addrs, sizeof(addrs)); 427 if (error) 428 return (error); 429 430 stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]), 431 sintosa(&addrs[1]), 432 &inp, &net, 1, vrf_id); 433 if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) { 434 if ((inp != NULL) && (stcb == NULL)) { 435 /* reduce ref-count */ 436 SCTP_INP_WLOCK(inp); 437 SCTP_INP_DECR_REF(inp); 438 goto cred_can_cont; 439 } 440 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 441 error = ENOENT; 442 goto out; 443 } 444 SCTP_TCB_UNLOCK(stcb); 445 /* 446 * We use the write lock here, only since in the error leg we need 447 * it. If we used RLOCK, then we would have to 448 * wlock/decr/unlock/rlock. Which in theory could create a hole. 449 * Better to use higher wlock. 450 */ 451 SCTP_INP_WLOCK(inp); 452 cred_can_cont: 453 error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket); 454 if (error) { 455 SCTP_INP_WUNLOCK(inp); 456 goto out; 457 } 458 cru2x(inp->sctp_socket->so_cred, &xuc); 459 SCTP_INP_WUNLOCK(inp); 460 error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred)); 461 out: 462 return (error); 463 } 464 465 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW, 466 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection"); 467 468 469 static void 470 sctp_abort(struct socket *so) 471 { 472 struct sctp_inpcb *inp; 473 uint32_t flags; 474 475 inp = (struct sctp_inpcb *)so->so_pcb; 476 if (inp == 0) { 477 return; 478 } 479 sctp_must_try_again: 480 flags = inp->sctp_flags; 481 #ifdef SCTP_LOG_CLOSING 482 sctp_log_closing(inp, NULL, 17); 483 #endif 484 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 485 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 486 #ifdef SCTP_LOG_CLOSING 487 sctp_log_closing(inp, NULL, 16); 488 #endif 489 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 490 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 491 SOCK_LOCK(so); 492 SCTP_SB_CLEAR(so->so_snd); 493 /* 494 * same for the rcv ones, they are only here for the 495 * accounting/select. 496 */ 497 SCTP_SB_CLEAR(so->so_rcv); 498 499 /* Now null out the reference, we are completely detached. */ 500 so->so_pcb = NULL; 501 SOCK_UNLOCK(so); 502 } else { 503 flags = inp->sctp_flags; 504 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 505 goto sctp_must_try_again; 506 } 507 } 508 return; 509 } 510 511 static int 512 sctp_attach(struct socket *so, int proto, struct thread *p) 513 { 514 struct sctp_inpcb *inp; 515 struct inpcb *ip_inp; 516 int error; 517 uint32_t vrf_id = SCTP_DEFAULT_VRFID; 518 519 #ifdef IPSEC 520 uint32_t flags; 521 522 #endif 523 524 inp = (struct sctp_inpcb *)so->so_pcb; 525 if (inp != 0) { 526 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 527 return EINVAL; 528 } 529 if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { 530 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace)); 531 if (error) { 532 return error; 533 } 534 } 535 error = sctp_inpcb_alloc(so, vrf_id); 536 if (error) { 537 return error; 538 } 539 inp = (struct sctp_inpcb *)so->so_pcb; 540 SCTP_INP_WLOCK(inp); 541 inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */ 542 ip_inp = &inp->ip_inp.inp; 543 ip_inp->inp_vflag |= INP_IPV4; 544 ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl); 545 #ifdef IPSEC 546 error = ipsec_init_policy(so, &ip_inp->inp_sp); 547 #ifdef SCTP_LOG_CLOSING 548 sctp_log_closing(inp, NULL, 17); 549 #endif 550 if (error != 0) { 551 try_again: 552 flags = inp->sctp_flags; 553 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 554 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 555 #ifdef SCTP_LOG_CLOSING 556 sctp_log_closing(inp, NULL, 15); 557 #endif 558 SCTP_INP_WUNLOCK(inp); 559 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 560 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 561 } else { 562 flags = inp->sctp_flags; 563 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 564 goto try_again; 565 } else { 566 SCTP_INP_WUNLOCK(inp); 567 } 568 } 569 return error; 570 } 571 #endif /* IPSEC */ 572 SCTP_INP_WUNLOCK(inp); 573 return 0; 574 } 575 576 static int 577 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p) 578 { 579 struct sctp_inpcb *inp = NULL; 580 int error; 581 582 #ifdef INET6 583 if (addr && addr->sa_family != AF_INET) { 584 /* must be a v4 address! */ 585 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 586 return EINVAL; 587 } 588 #endif /* INET6 */ 589 if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) { 590 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 591 return EINVAL; 592 } 593 inp = (struct sctp_inpcb *)so->so_pcb; 594 if (inp == 0) { 595 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 596 return EINVAL; 597 } 598 error = sctp_inpcb_bind(so, addr, NULL, p); 599 return error; 600 } 601 602 void 603 sctp_close(struct socket *so) 604 { 605 struct sctp_inpcb *inp; 606 uint32_t flags; 607 608 inp = (struct sctp_inpcb *)so->so_pcb; 609 if (inp == 0) 610 return; 611 612 /* 613 * Inform all the lower layer assoc that we are done. 614 */ 615 sctp_must_try_again: 616 flags = inp->sctp_flags; 617 #ifdef SCTP_LOG_CLOSING 618 sctp_log_closing(inp, NULL, 17); 619 #endif 620 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 621 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 622 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) || 623 (so->so_rcv.sb_cc > 0)) { 624 #ifdef SCTP_LOG_CLOSING 625 sctp_log_closing(inp, NULL, 13); 626 #endif 627 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 628 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 629 } else { 630 #ifdef SCTP_LOG_CLOSING 631 sctp_log_closing(inp, NULL, 14); 632 #endif 633 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE, 634 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 635 } 636 /* 637 * The socket is now detached, no matter what the state of 638 * the SCTP association. 639 */ 640 SOCK_LOCK(so); 641 SCTP_SB_CLEAR(so->so_snd); 642 /* 643 * same for the rcv ones, they are only here for the 644 * accounting/select. 645 */ 646 SCTP_SB_CLEAR(so->so_rcv); 647 648 /* Now null out the reference, we are completely detached. */ 649 so->so_pcb = NULL; 650 SOCK_UNLOCK(so); 651 } else { 652 flags = inp->sctp_flags; 653 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 654 goto sctp_must_try_again; 655 } 656 } 657 return; 658 } 659 660 661 int 662 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 663 struct mbuf *control, struct thread *p); 664 665 666 int 667 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 668 struct mbuf *control, struct thread *p) 669 { 670 struct sctp_inpcb *inp; 671 int error; 672 673 inp = (struct sctp_inpcb *)so->so_pcb; 674 if (inp == 0) { 675 if (control) { 676 sctp_m_freem(control); 677 control = NULL; 678 } 679 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 680 sctp_m_freem(m); 681 return EINVAL; 682 } 683 /* Got to have an to address if we are NOT a connected socket */ 684 if ((addr == NULL) && 685 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) || 686 (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE)) 687 ) { 688 goto connected_type; 689 } else if (addr == NULL) { 690 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 691 error = EDESTADDRREQ; 692 sctp_m_freem(m); 693 if (control) { 694 sctp_m_freem(control); 695 control = NULL; 696 } 697 return (error); 698 } 699 #ifdef INET6 700 if (addr->sa_family != AF_INET) { 701 /* must be a v4 address! */ 702 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 703 sctp_m_freem(m); 704 if (control) { 705 sctp_m_freem(control); 706 control = NULL; 707 } 708 error = EDESTADDRREQ; 709 return EDESTADDRREQ; 710 } 711 #endif /* INET6 */ 712 connected_type: 713 /* now what about control */ 714 if (control) { 715 if (inp->control) { 716 SCTP_PRINTF("huh? control set?\n"); 717 sctp_m_freem(inp->control); 718 inp->control = NULL; 719 } 720 inp->control = control; 721 } 722 /* Place the data */ 723 if (inp->pkt) { 724 SCTP_BUF_NEXT(inp->pkt_last) = m; 725 inp->pkt_last = m; 726 } else { 727 inp->pkt_last = inp->pkt = m; 728 } 729 if ( 730 /* FreeBSD uses a flag passed */ 731 ((flags & PRUS_MORETOCOME) == 0) 732 ) { 733 /* 734 * note with the current version this code will only be used 735 * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for 736 * re-defining sosend to use the sctp_sosend. One can 737 * optionally switch back to this code (by changing back the 738 * definitions) but this is not advisable. This code is used 739 * by FreeBSD when sending a file with sendfile() though. 740 */ 741 int ret; 742 743 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags); 744 inp->pkt = NULL; 745 inp->control = NULL; 746 return (ret); 747 } else { 748 return (0); 749 } 750 } 751 752 int 753 sctp_disconnect(struct socket *so) 754 { 755 struct sctp_inpcb *inp; 756 757 inp = (struct sctp_inpcb *)so->so_pcb; 758 if (inp == NULL) { 759 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 760 return (ENOTCONN); 761 } 762 SCTP_INP_RLOCK(inp); 763 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 764 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 765 if (LIST_EMPTY(&inp->sctp_asoc_list)) { 766 /* No connection */ 767 SCTP_INP_RUNLOCK(inp); 768 return (0); 769 } else { 770 struct sctp_association *asoc; 771 struct sctp_tcb *stcb; 772 773 stcb = LIST_FIRST(&inp->sctp_asoc_list); 774 if (stcb == NULL) { 775 SCTP_INP_RUNLOCK(inp); 776 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 777 return (EINVAL); 778 } 779 SCTP_TCB_LOCK(stcb); 780 asoc = &stcb->asoc; 781 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 782 /* We are about to be freed, out of here */ 783 SCTP_TCB_UNLOCK(stcb); 784 SCTP_INP_RUNLOCK(inp); 785 return (0); 786 } 787 if (((so->so_options & SO_LINGER) && 788 (so->so_linger == 0)) || 789 (so->so_rcv.sb_cc > 0)) { 790 if (SCTP_GET_STATE(asoc) != 791 SCTP_STATE_COOKIE_WAIT) { 792 /* Left with Data unread */ 793 struct mbuf *err; 794 795 err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA); 796 if (err) { 797 /* 798 * Fill in the user 799 * initiated abort 800 */ 801 struct sctp_paramhdr *ph; 802 803 ph = mtod(err, struct sctp_paramhdr *); 804 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr); 805 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT); 806 ph->param_length = htons(SCTP_BUF_LEN(err)); 807 } 808 #if defined(SCTP_PANIC_ON_ABORT) 809 panic("disconnect does an abort"); 810 #endif 811 sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED); 812 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 813 } 814 SCTP_INP_RUNLOCK(inp); 815 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 816 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 817 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 818 } 819 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3); 820 /* No unlock tcb assoc is gone */ 821 return (0); 822 } 823 if (TAILQ_EMPTY(&asoc->send_queue) && 824 TAILQ_EMPTY(&asoc->sent_queue) && 825 (asoc->stream_queue_cnt == 0)) { 826 /* there is nothing queued to send, so done */ 827 if (asoc->locked_on_sending) { 828 goto abort_anyway; 829 } 830 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) && 831 (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) { 832 /* only send SHUTDOWN 1st time thru */ 833 sctp_stop_timers_for_shutdown(stcb); 834 sctp_send_shutdown(stcb, 835 stcb->asoc.primary_destination); 836 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 837 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 838 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 839 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 840 } 841 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 842 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 843 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 844 stcb->sctp_ep, stcb, 845 asoc->primary_destination); 846 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 847 stcb->sctp_ep, stcb, 848 asoc->primary_destination); 849 } 850 } else { 851 /* 852 * we still got (or just got) data to send, 853 * so set SHUTDOWN_PENDING 854 */ 855 /* 856 * XXX sockets draft says that SCTP_EOF 857 * should be sent with no data. currently, 858 * we will allow user data to be sent first 859 * and move to SHUTDOWN-PENDING 860 */ 861 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 862 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 863 asoc->primary_destination); 864 if (asoc->locked_on_sending) { 865 /* Locked to send out the data */ 866 struct sctp_stream_queue_pending *sp; 867 868 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 869 if (sp == NULL) { 870 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 871 asoc->locked_on_sending->stream_no); 872 } else { 873 if ((sp->length == 0) && (sp->msg_is_complete == 0)) 874 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 875 } 876 } 877 if (TAILQ_EMPTY(&asoc->send_queue) && 878 TAILQ_EMPTY(&asoc->sent_queue) && 879 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 880 struct mbuf *op_err; 881 882 abort_anyway: 883 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 884 0, M_DONTWAIT, 1, MT_DATA); 885 if (op_err) { 886 /* 887 * Fill in the user 888 * initiated abort 889 */ 890 struct sctp_paramhdr *ph; 891 uint32_t *ippp; 892 893 SCTP_BUF_LEN(op_err) = 894 (sizeof(struct sctp_paramhdr) + sizeof(uint32_t)); 895 ph = mtod(op_err, 896 struct sctp_paramhdr *); 897 ph->param_type = htons( 898 SCTP_CAUSE_USER_INITIATED_ABT); 899 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 900 ippp = (uint32_t *) (ph + 1); 901 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4); 902 } 903 #if defined(SCTP_PANIC_ON_ABORT) 904 panic("disconnect does an abort"); 905 #endif 906 907 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4; 908 sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED); 909 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 910 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 911 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 912 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 913 } 914 SCTP_INP_RUNLOCK(inp); 915 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5); 916 return (0); 917 } else { 918 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 919 } 920 } 921 soisdisconnecting(so); 922 SCTP_TCB_UNLOCK(stcb); 923 SCTP_INP_RUNLOCK(inp); 924 return (0); 925 } 926 /* not reached */ 927 } else { 928 /* UDP model does not support this */ 929 SCTP_INP_RUNLOCK(inp); 930 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 931 return EOPNOTSUPP; 932 } 933 } 934 935 int 936 sctp_flush(struct socket *so, int how) 937 { 938 /* 939 * We will just clear out the values and let subsequent close clear 940 * out the data, if any. Note if the user did a shutdown(SHUT_RD) 941 * they will not be able to read the data, the socket will block 942 * that from happening. 943 */ 944 struct sctp_inpcb *inp; 945 946 inp = (struct sctp_inpcb *)so->so_pcb; 947 if (inp == NULL) { 948 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 949 return EINVAL; 950 } 951 SCTP_INP_RLOCK(inp); 952 /* For the 1 to many model this does nothing */ 953 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 954 SCTP_INP_RUNLOCK(inp); 955 return (0); 956 } 957 SCTP_INP_RUNLOCK(inp); 958 if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) { 959 /* 960 * First make sure the sb will be happy, we don't use these 961 * except maybe the count 962 */ 963 SCTP_INP_WLOCK(inp); 964 SCTP_INP_READ_LOCK(inp); 965 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ; 966 SCTP_INP_READ_UNLOCK(inp); 967 SCTP_INP_WUNLOCK(inp); 968 so->so_rcv.sb_cc = 0; 969 so->so_rcv.sb_mbcnt = 0; 970 so->so_rcv.sb_mb = NULL; 971 } 972 if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) { 973 /* 974 * First make sure the sb will be happy, we don't use these 975 * except maybe the count 976 */ 977 so->so_snd.sb_cc = 0; 978 so->so_snd.sb_mbcnt = 0; 979 so->so_snd.sb_mb = NULL; 980 981 } 982 return (0); 983 } 984 985 int 986 sctp_shutdown(struct socket *so) 987 { 988 struct sctp_inpcb *inp; 989 990 inp = (struct sctp_inpcb *)so->so_pcb; 991 if (inp == 0) { 992 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 993 return EINVAL; 994 } 995 SCTP_INP_RLOCK(inp); 996 /* For UDP model this is a invalid call */ 997 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 998 /* Restore the flags that the soshutdown took away. */ 999 SOCKBUF_LOCK(&so->so_rcv); 1000 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; 1001 SOCKBUF_UNLOCK(&so->so_rcv); 1002 /* This proc will wakeup for read and do nothing (I hope) */ 1003 SCTP_INP_RUNLOCK(inp); 1004 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1005 return (EOPNOTSUPP); 1006 } 1007 /* 1008 * Ok if we reach here its the TCP model and it is either a SHUT_WR 1009 * or SHUT_RDWR. This means we put the shutdown flag against it. 1010 */ 1011 { 1012 struct sctp_tcb *stcb; 1013 struct sctp_association *asoc; 1014 1015 if ((so->so_state & 1016 (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) { 1017 SCTP_INP_RUNLOCK(inp); 1018 return (ENOTCONN); 1019 } 1020 socantsendmore(so); 1021 1022 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1023 if (stcb == NULL) { 1024 /* 1025 * Ok we hit the case that the shutdown call was 1026 * made after an abort or something. Nothing to do 1027 * now. 1028 */ 1029 SCTP_INP_RUNLOCK(inp); 1030 return (0); 1031 } 1032 SCTP_TCB_LOCK(stcb); 1033 asoc = &stcb->asoc; 1034 if (TAILQ_EMPTY(&asoc->send_queue) && 1035 TAILQ_EMPTY(&asoc->sent_queue) && 1036 (asoc->stream_queue_cnt == 0)) { 1037 if (asoc->locked_on_sending) { 1038 goto abort_anyway; 1039 } 1040 /* there is nothing queued to send, so I'm done... */ 1041 if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) { 1042 /* only send SHUTDOWN the first time through */ 1043 sctp_stop_timers_for_shutdown(stcb); 1044 sctp_send_shutdown(stcb, 1045 stcb->asoc.primary_destination); 1046 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 1047 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 1048 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 1049 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 1050 } 1051 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 1052 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 1053 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 1054 stcb->sctp_ep, stcb, 1055 asoc->primary_destination); 1056 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 1057 stcb->sctp_ep, stcb, 1058 asoc->primary_destination); 1059 } 1060 } else { 1061 /* 1062 * we still got (or just got) data to send, so set 1063 * SHUTDOWN_PENDING 1064 */ 1065 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 1066 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 1067 asoc->primary_destination); 1068 1069 if (asoc->locked_on_sending) { 1070 /* Locked to send out the data */ 1071 struct sctp_stream_queue_pending *sp; 1072 1073 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 1074 if (sp == NULL) { 1075 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 1076 asoc->locked_on_sending->stream_no); 1077 } else { 1078 if ((sp->length == 0) && (sp->msg_is_complete == 0)) { 1079 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 1080 } 1081 } 1082 } 1083 if (TAILQ_EMPTY(&asoc->send_queue) && 1084 TAILQ_EMPTY(&asoc->sent_queue) && 1085 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 1086 struct mbuf *op_err; 1087 1088 abort_anyway: 1089 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 1090 0, M_DONTWAIT, 1, MT_DATA); 1091 if (op_err) { 1092 /* Fill in the user initiated abort */ 1093 struct sctp_paramhdr *ph; 1094 uint32_t *ippp; 1095 1096 SCTP_BUF_LEN(op_err) = 1097 sizeof(struct sctp_paramhdr) + sizeof(uint32_t); 1098 ph = mtod(op_err, 1099 struct sctp_paramhdr *); 1100 ph->param_type = htons( 1101 SCTP_CAUSE_USER_INITIATED_ABT); 1102 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 1103 ippp = (uint32_t *) (ph + 1); 1104 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1105 } 1106 #if defined(SCTP_PANIC_ON_ABORT) 1107 panic("shutdown does an abort"); 1108 #endif 1109 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6; 1110 sctp_abort_an_association(stcb->sctp_ep, stcb, 1111 SCTP_RESPONSE_TO_USER_REQ, 1112 op_err, SCTP_SO_LOCKED); 1113 goto skip_unlock; 1114 } else { 1115 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 1116 } 1117 } 1118 SCTP_TCB_UNLOCK(stcb); 1119 } 1120 skip_unlock: 1121 SCTP_INP_RUNLOCK(inp); 1122 return 0; 1123 } 1124 1125 /* 1126 * copies a "user" presentable address and removes embedded scope, etc. 1127 * returns 0 on success, 1 on error 1128 */ 1129 static uint32_t 1130 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa) 1131 { 1132 #ifdef INET6 1133 struct sockaddr_in6 lsa6; 1134 1135 sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa, 1136 &lsa6); 1137 #endif 1138 memcpy(ss, sa, sa->sa_len); 1139 return (0); 1140 } 1141 1142 1143 1144 /* 1145 * NOTE: assumes addr lock is held 1146 */ 1147 static size_t 1148 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp, 1149 struct sctp_tcb *stcb, 1150 size_t limit, 1151 struct sockaddr_storage *sas, 1152 uint32_t vrf_id) 1153 { 1154 struct sctp_ifn *sctp_ifn; 1155 struct sctp_ifa *sctp_ifa; 1156 int loopback_scope, ipv4_local_scope, local_scope, site_scope; 1157 size_t actual; 1158 int ipv4_addr_legal, ipv6_addr_legal; 1159 struct sctp_vrf *vrf; 1160 1161 actual = 0; 1162 if (limit <= 0) 1163 return (actual); 1164 1165 if (stcb) { 1166 /* Turn on all the appropriate scope */ 1167 loopback_scope = stcb->asoc.loopback_scope; 1168 ipv4_local_scope = stcb->asoc.ipv4_local_scope; 1169 local_scope = stcb->asoc.local_scope; 1170 site_scope = stcb->asoc.site_scope; 1171 } else { 1172 /* Turn on ALL scope, since we look at the EP */ 1173 loopback_scope = ipv4_local_scope = local_scope = 1174 site_scope = 1; 1175 } 1176 ipv4_addr_legal = ipv6_addr_legal = 0; 1177 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1178 ipv6_addr_legal = 1; 1179 if (SCTP_IPV6_V6ONLY(inp) == 0) { 1180 ipv4_addr_legal = 1; 1181 } 1182 } else { 1183 ipv4_addr_legal = 1; 1184 } 1185 vrf = sctp_find_vrf(vrf_id); 1186 if (vrf == NULL) { 1187 return (0); 1188 } 1189 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1190 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1191 if ((loopback_scope == 0) && 1192 SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) { 1193 /* Skip loopback if loopback_scope not set */ 1194 continue; 1195 } 1196 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1197 if (stcb) { 1198 /* 1199 * For the BOUND-ALL case, the list 1200 * associated with a TCB is Always 1201 * considered a reverse list.. i.e. 1202 * it lists addresses that are NOT 1203 * part of the association. If this 1204 * is one of those we must skip it. 1205 */ 1206 if (sctp_is_addr_restricted(stcb, 1207 sctp_ifa)) { 1208 continue; 1209 } 1210 } 1211 switch (sctp_ifa->address.sa.sa_family) { 1212 case AF_INET: 1213 if (ipv4_addr_legal) { 1214 struct sockaddr_in *sin; 1215 1216 sin = (struct sockaddr_in *)&sctp_ifa->address.sa; 1217 if (sin->sin_addr.s_addr == 0) { 1218 /* 1219 * we skip 1220 * unspecifed 1221 * addresses 1222 */ 1223 continue; 1224 } 1225 if ((ipv4_local_scope == 0) && 1226 (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) { 1227 continue; 1228 } 1229 #ifdef INET6 1230 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) { 1231 in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas); 1232 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1233 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6)); 1234 actual += sizeof(struct sockaddr_in6); 1235 } else { 1236 #endif 1237 memcpy(sas, sin, sizeof(*sin)); 1238 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport; 1239 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin)); 1240 actual += sizeof(*sin); 1241 #ifdef INET6 1242 } 1243 #endif 1244 if (actual >= limit) { 1245 return (actual); 1246 } 1247 } else { 1248 continue; 1249 } 1250 break; 1251 #ifdef INET6 1252 case AF_INET6: 1253 if (ipv6_addr_legal) { 1254 struct sockaddr_in6 *sin6; 1255 1256 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa; 1257 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 1258 /* 1259 * we skip 1260 * unspecifed 1261 * addresses 1262 */ 1263 continue; 1264 } 1265 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 1266 if (local_scope == 0) 1267 continue; 1268 if (sin6->sin6_scope_id == 0) { 1269 if (sa6_recoverscope(sin6) != 0) 1270 /* 1271 * 1272 * bad 1273 * 1274 * li 1275 * nk 1276 * 1277 * loc 1278 * al 1279 * 1280 * add 1281 * re 1282 * ss 1283 * */ 1284 continue; 1285 } 1286 } 1287 if ((site_scope == 0) && 1288 (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) { 1289 continue; 1290 } 1291 memcpy(sas, sin6, sizeof(*sin6)); 1292 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1293 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6)); 1294 actual += sizeof(*sin6); 1295 if (actual >= limit) { 1296 return (actual); 1297 } 1298 } else { 1299 continue; 1300 } 1301 break; 1302 #endif 1303 default: 1304 /* TSNH */ 1305 break; 1306 } 1307 } 1308 } 1309 } else { 1310 struct sctp_laddr *laddr; 1311 1312 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1313 if (stcb) { 1314 if (sctp_is_addr_restricted(stcb, laddr->ifa)) { 1315 continue; 1316 } 1317 } 1318 if (sctp_fill_user_address(sas, &laddr->ifa->address.sa)) 1319 continue; 1320 1321 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1322 sas = (struct sockaddr_storage *)((caddr_t)sas + 1323 laddr->ifa->address.sa.sa_len); 1324 actual += laddr->ifa->address.sa.sa_len; 1325 if (actual >= limit) { 1326 return (actual); 1327 } 1328 } 1329 } 1330 return (actual); 1331 } 1332 1333 static size_t 1334 sctp_fill_up_addresses(struct sctp_inpcb *inp, 1335 struct sctp_tcb *stcb, 1336 size_t limit, 1337 struct sockaddr_storage *sas) 1338 { 1339 size_t size = 0; 1340 1341 SCTP_IPI_ADDR_RLOCK(); 1342 /* fill up addresses for the endpoint's default vrf */ 1343 size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas, 1344 inp->def_vrf_id); 1345 SCTP_IPI_ADDR_RUNLOCK(); 1346 return (size); 1347 } 1348 1349 /* 1350 * NOTE: assumes addr lock is held 1351 */ 1352 static int 1353 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id) 1354 { 1355 int cnt = 0; 1356 struct sctp_vrf *vrf = NULL; 1357 1358 /* 1359 * In both sub-set bound an bound_all cases we return the MAXIMUM 1360 * number of addresses that you COULD get. In reality the sub-set 1361 * bound may have an exclusion list for a given TCB OR in the 1362 * bound-all case a TCB may NOT include the loopback or other 1363 * addresses as well. 1364 */ 1365 vrf = sctp_find_vrf(vrf_id); 1366 if (vrf == NULL) { 1367 return (0); 1368 } 1369 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1370 struct sctp_ifn *sctp_ifn; 1371 struct sctp_ifa *sctp_ifa; 1372 1373 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1374 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1375 /* Count them if they are the right type */ 1376 if (sctp_ifa->address.sa.sa_family == AF_INET) { 1377 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1378 cnt += sizeof(struct sockaddr_in6); 1379 else 1380 cnt += sizeof(struct sockaddr_in); 1381 1382 } else if (sctp_ifa->address.sa.sa_family == AF_INET6) 1383 cnt += sizeof(struct sockaddr_in6); 1384 } 1385 } 1386 } else { 1387 struct sctp_laddr *laddr; 1388 1389 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1390 if (laddr->ifa->address.sa.sa_family == AF_INET) { 1391 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1392 cnt += sizeof(struct sockaddr_in6); 1393 else 1394 cnt += sizeof(struct sockaddr_in); 1395 1396 } else if (laddr->ifa->address.sa.sa_family == AF_INET6) 1397 cnt += sizeof(struct sockaddr_in6); 1398 } 1399 } 1400 return (cnt); 1401 } 1402 1403 static int 1404 sctp_count_max_addresses(struct sctp_inpcb *inp) 1405 { 1406 int cnt = 0; 1407 1408 SCTP_IPI_ADDR_RLOCK(); 1409 /* count addresses for the endpoint's default VRF */ 1410 cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id); 1411 SCTP_IPI_ADDR_RUNLOCK(); 1412 return (cnt); 1413 } 1414 1415 static int 1416 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval, 1417 size_t optsize, void *p, int delay) 1418 { 1419 int error = 0; 1420 int creat_lock_on = 0; 1421 struct sctp_tcb *stcb = NULL; 1422 struct sockaddr *sa; 1423 int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr; 1424 int added = 0; 1425 uint32_t vrf_id; 1426 int bad_addresses = 0; 1427 sctp_assoc_t *a_id; 1428 1429 SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n"); 1430 1431 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 1432 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 1433 /* We are already connected AND the TCP model */ 1434 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 1435 return (EADDRINUSE); 1436 } 1437 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) && 1438 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) { 1439 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1440 return (EINVAL); 1441 } 1442 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 1443 SCTP_INP_RLOCK(inp); 1444 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1445 SCTP_INP_RUNLOCK(inp); 1446 } 1447 if (stcb) { 1448 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1449 return (EALREADY); 1450 } 1451 SCTP_INP_INCR_REF(inp); 1452 SCTP_ASOC_CREATE_LOCK(inp); 1453 creat_lock_on = 1; 1454 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 1455 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 1456 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 1457 error = EFAULT; 1458 goto out_now; 1459 } 1460 totaddrp = (int *)optval; 1461 totaddr = *totaddrp; 1462 sa = (struct sockaddr *)(totaddrp + 1); 1463 stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses); 1464 if ((stcb != NULL) || bad_addresses) { 1465 /* Already have or am bring up an association */ 1466 SCTP_ASOC_CREATE_UNLOCK(inp); 1467 creat_lock_on = 0; 1468 if (stcb) 1469 SCTP_TCB_UNLOCK(stcb); 1470 if (bad_addresses == 0) { 1471 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1472 error = EALREADY; 1473 } 1474 goto out_now; 1475 } 1476 #ifdef INET6 1477 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 1478 (num_v6 > 0)) { 1479 error = EINVAL; 1480 goto out_now; 1481 } 1482 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && 1483 (num_v4 > 0)) { 1484 struct in6pcb *inp6; 1485 1486 inp6 = (struct in6pcb *)inp; 1487 if (SCTP_IPV6_V6ONLY(inp6)) { 1488 /* 1489 * if IPV6_V6ONLY flag, ignore connections destined 1490 * to a v4 addr or v4-mapped addr 1491 */ 1492 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1493 error = EINVAL; 1494 goto out_now; 1495 } 1496 } 1497 #endif /* INET6 */ 1498 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 1499 SCTP_PCB_FLAGS_UNBOUND) { 1500 /* Bind a ephemeral port */ 1501 error = sctp_inpcb_bind(so, NULL, NULL, p); 1502 if (error) { 1503 goto out_now; 1504 } 1505 } 1506 /* FIX ME: do we want to pass in a vrf on the connect call? */ 1507 vrf_id = inp->def_vrf_id; 1508 1509 1510 /* We are GOOD to go */ 1511 stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id, 1512 (struct thread *)p 1513 ); 1514 if (stcb == NULL) { 1515 /* Gak! no memory */ 1516 goto out_now; 1517 } 1518 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 1519 /* move to second address */ 1520 if (sa->sa_family == AF_INET) 1521 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in)); 1522 else 1523 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6)); 1524 1525 error = 0; 1526 added = sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error); 1527 /* Fill in the return id */ 1528 if (error) { 1529 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1530 goto out_now; 1531 } 1532 a_id = (sctp_assoc_t *) optval; 1533 *a_id = sctp_get_associd(stcb); 1534 1535 /* initialize authentication parameters for the assoc */ 1536 sctp_initialize_auth_params(inp, stcb); 1537 1538 if (delay) { 1539 /* doing delayed connection */ 1540 stcb->asoc.delayed_connection = 1; 1541 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination); 1542 } else { 1543 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 1544 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 1545 } 1546 SCTP_TCB_UNLOCK(stcb); 1547 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 1548 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 1549 /* Set the connected flag so we can queue data */ 1550 soisconnecting(so); 1551 } 1552 out_now: 1553 if (creat_lock_on) { 1554 SCTP_ASOC_CREATE_UNLOCK(inp); 1555 } 1556 SCTP_INP_DECR_REF(inp); 1557 return error; 1558 } 1559 1560 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \ 1561 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\ 1562 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \ 1563 SCTP_INP_RLOCK(inp); \ 1564 stcb = LIST_FIRST(&inp->sctp_asoc_list); \ 1565 if (stcb) { \ 1566 SCTP_TCB_LOCK(stcb); \ 1567 } \ 1568 SCTP_INP_RUNLOCK(inp); \ 1569 } else if (assoc_id != 0) { \ 1570 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \ 1571 if (stcb == NULL) { \ 1572 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \ 1573 error = ENOENT; \ 1574 break; \ 1575 } \ 1576 } else { \ 1577 stcb = NULL; \ 1578 } \ 1579 } 1580 1581 1582 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\ 1583 if (size < sizeof(type)) { \ 1584 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \ 1585 error = EINVAL; \ 1586 break; \ 1587 } else { \ 1588 destp = (type *)srcp; \ 1589 } \ 1590 } 1591 1592 static int 1593 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize, 1594 void *p) 1595 { 1596 struct sctp_inpcb *inp = NULL; 1597 int error, val = 0; 1598 struct sctp_tcb *stcb = NULL; 1599 1600 if (optval == NULL) { 1601 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1602 return (EINVAL); 1603 } 1604 inp = (struct sctp_inpcb *)so->so_pcb; 1605 if (inp == 0) { 1606 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1607 return EINVAL; 1608 } 1609 error = 0; 1610 1611 switch (optname) { 1612 case SCTP_NODELAY: 1613 case SCTP_AUTOCLOSE: 1614 case SCTP_EXPLICIT_EOR: 1615 case SCTP_AUTO_ASCONF: 1616 case SCTP_DISABLE_FRAGMENTS: 1617 case SCTP_I_WANT_MAPPED_V4_ADDR: 1618 case SCTP_USE_EXT_RCVINFO: 1619 SCTP_INP_RLOCK(inp); 1620 switch (optname) { 1621 case SCTP_DISABLE_FRAGMENTS: 1622 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT); 1623 break; 1624 case SCTP_I_WANT_MAPPED_V4_ADDR: 1625 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4); 1626 break; 1627 case SCTP_AUTO_ASCONF: 1628 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1629 /* only valid for bound all sockets */ 1630 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF); 1631 } else { 1632 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1633 error = EINVAL; 1634 goto flags_out; 1635 } 1636 break; 1637 case SCTP_EXPLICIT_EOR: 1638 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR); 1639 break; 1640 case SCTP_NODELAY: 1641 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY); 1642 break; 1643 case SCTP_USE_EXT_RCVINFO: 1644 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO); 1645 break; 1646 case SCTP_AUTOCLOSE: 1647 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE)) 1648 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time); 1649 else 1650 val = 0; 1651 break; 1652 1653 default: 1654 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 1655 error = ENOPROTOOPT; 1656 } /* end switch (sopt->sopt_name) */ 1657 if (optname != SCTP_AUTOCLOSE) { 1658 /* make it an "on/off" value */ 1659 val = (val != 0); 1660 } 1661 if (*optsize < sizeof(val)) { 1662 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1663 error = EINVAL; 1664 } 1665 flags_out: 1666 SCTP_INP_RUNLOCK(inp); 1667 if (error == 0) { 1668 /* return the option value */ 1669 *(int *)optval = val; 1670 *optsize = sizeof(val); 1671 } 1672 break; 1673 case SCTP_GET_PACKET_LOG: 1674 { 1675 #ifdef SCTP_PACKET_LOGGING 1676 uint8_t *target; 1677 int ret; 1678 1679 SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize); 1680 ret = sctp_copy_out_packet_log(target, (int)*optsize); 1681 *optsize = ret; 1682 #else 1683 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1684 error = EOPNOTSUPP; 1685 #endif 1686 break; 1687 } 1688 case SCTP_REUSE_PORT: 1689 { 1690 uint32_t *value; 1691 1692 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) { 1693 /* Can't do this for a 1-m socket */ 1694 error = EINVAL; 1695 break; 1696 } 1697 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1698 *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE); 1699 *optsize = sizeof(uint32_t); 1700 } 1701 break; 1702 case SCTP_PARTIAL_DELIVERY_POINT: 1703 { 1704 uint32_t *value; 1705 1706 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1707 *value = inp->partial_delivery_point; 1708 *optsize = sizeof(uint32_t); 1709 } 1710 break; 1711 case SCTP_FRAGMENT_INTERLEAVE: 1712 { 1713 uint32_t *value; 1714 1715 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1716 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) { 1717 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) { 1718 *value = SCTP_FRAG_LEVEL_2; 1719 } else { 1720 *value = SCTP_FRAG_LEVEL_1; 1721 } 1722 } else { 1723 *value = SCTP_FRAG_LEVEL_0; 1724 } 1725 *optsize = sizeof(uint32_t); 1726 } 1727 break; 1728 case SCTP_CMT_ON_OFF: 1729 { 1730 struct sctp_assoc_value *av; 1731 1732 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1733 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1734 if (stcb) { 1735 av->assoc_value = stcb->asoc.sctp_cmt_on_off; 1736 SCTP_TCB_UNLOCK(stcb); 1737 } else { 1738 SCTP_INP_RLOCK(inp); 1739 av->assoc_value = inp->sctp_cmt_on_off; 1740 SCTP_INP_RUNLOCK(inp); 1741 } 1742 *optsize = sizeof(*av); 1743 } 1744 break; 1745 /* JRS - Get socket option for pluggable congestion control */ 1746 case SCTP_PLUGGABLE_CC: 1747 { 1748 struct sctp_assoc_value *av; 1749 1750 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1751 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1752 if (stcb) { 1753 av->assoc_value = stcb->asoc.congestion_control_module; 1754 SCTP_TCB_UNLOCK(stcb); 1755 } else { 1756 av->assoc_value = inp->sctp_ep.sctp_default_cc_module; 1757 } 1758 *optsize = sizeof(*av); 1759 } 1760 break; 1761 case SCTP_CC_OPTION: 1762 { 1763 struct sctp_cc_option *cc_opt; 1764 1765 SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize); 1766 SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id); 1767 if (stcb == NULL) { 1768 error = EINVAL; 1769 } else { 1770 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) { 1771 error = ENOTSUP; 1772 } else { 1773 error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, 1774 cc_opt); 1775 *optsize = sizeof(*cc_opt); 1776 } 1777 SCTP_TCB_UNLOCK(stcb); 1778 } 1779 } 1780 break; 1781 /* RS - Get socket option for pluggable stream scheduling */ 1782 case SCTP_PLUGGABLE_SS: 1783 { 1784 struct sctp_assoc_value *av; 1785 1786 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1787 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1788 if (stcb) { 1789 av->assoc_value = stcb->asoc.stream_scheduling_module; 1790 SCTP_TCB_UNLOCK(stcb); 1791 } else { 1792 av->assoc_value = inp->sctp_ep.sctp_default_ss_module; 1793 } 1794 *optsize = sizeof(*av); 1795 } 1796 break; 1797 case SCTP_SS_VALUE: 1798 { 1799 struct sctp_stream_value *av; 1800 1801 SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize); 1802 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1803 if (stcb) { 1804 if (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id], 1805 &av->stream_value) < 0) { 1806 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1807 error = EINVAL; 1808 } else { 1809 *optsize = sizeof(*av); 1810 } 1811 SCTP_TCB_UNLOCK(stcb); 1812 } else { 1813 /* 1814 * Can't get stream value without 1815 * association 1816 */ 1817 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1818 error = EINVAL; 1819 } 1820 } 1821 break; 1822 case SCTP_GET_ADDR_LEN: 1823 { 1824 struct sctp_assoc_value *av; 1825 1826 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1827 error = EINVAL; 1828 #ifdef INET 1829 if (av->assoc_value == AF_INET) { 1830 av->assoc_value = sizeof(struct sockaddr_in); 1831 error = 0; 1832 } 1833 #endif 1834 #ifdef INET6 1835 if (av->assoc_value == AF_INET6) { 1836 av->assoc_value = sizeof(struct sockaddr_in6); 1837 error = 0; 1838 } 1839 #endif 1840 if (error) { 1841 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1842 } 1843 *optsize = sizeof(*av); 1844 } 1845 break; 1846 case SCTP_GET_ASSOC_NUMBER: 1847 { 1848 uint32_t *value, cnt; 1849 1850 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1851 cnt = 0; 1852 SCTP_INP_RLOCK(inp); 1853 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1854 cnt++; 1855 } 1856 SCTP_INP_RUNLOCK(inp); 1857 *value = cnt; 1858 *optsize = sizeof(uint32_t); 1859 } 1860 break; 1861 1862 case SCTP_GET_ASSOC_ID_LIST: 1863 { 1864 struct sctp_assoc_ids *ids; 1865 unsigned int at, limit; 1866 1867 SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize); 1868 at = 0; 1869 limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t); 1870 SCTP_INP_RLOCK(inp); 1871 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1872 if (at < limit) { 1873 ids->gaids_assoc_id[at++] = sctp_get_associd(stcb); 1874 } else { 1875 error = EINVAL; 1876 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1877 break; 1878 } 1879 } 1880 SCTP_INP_RUNLOCK(inp); 1881 ids->gaids_number_of_ids = at; 1882 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t)); 1883 } 1884 break; 1885 case SCTP_CONTEXT: 1886 { 1887 struct sctp_assoc_value *av; 1888 1889 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1890 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1891 1892 if (stcb) { 1893 av->assoc_value = stcb->asoc.context; 1894 SCTP_TCB_UNLOCK(stcb); 1895 } else { 1896 SCTP_INP_RLOCK(inp); 1897 av->assoc_value = inp->sctp_context; 1898 SCTP_INP_RUNLOCK(inp); 1899 } 1900 *optsize = sizeof(*av); 1901 } 1902 break; 1903 case SCTP_VRF_ID: 1904 { 1905 uint32_t *default_vrfid; 1906 1907 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize); 1908 *default_vrfid = inp->def_vrf_id; 1909 break; 1910 } 1911 case SCTP_GET_ASOC_VRF: 1912 { 1913 struct sctp_assoc_value *id; 1914 1915 SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize); 1916 SCTP_FIND_STCB(inp, stcb, id->assoc_id); 1917 if (stcb == NULL) { 1918 error = EINVAL; 1919 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1920 break; 1921 } 1922 id->assoc_value = stcb->asoc.vrf_id; 1923 break; 1924 } 1925 case SCTP_GET_VRF_IDS: 1926 { 1927 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1928 error = EOPNOTSUPP; 1929 break; 1930 } 1931 case SCTP_GET_NONCE_VALUES: 1932 { 1933 struct sctp_get_nonce_values *gnv; 1934 1935 SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize); 1936 SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id); 1937 1938 if (stcb) { 1939 gnv->gn_peers_tag = stcb->asoc.peer_vtag; 1940 gnv->gn_local_tag = stcb->asoc.my_vtag; 1941 SCTP_TCB_UNLOCK(stcb); 1942 } else { 1943 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1944 error = ENOTCONN; 1945 } 1946 *optsize = sizeof(*gnv); 1947 } 1948 break; 1949 case SCTP_DELAYED_SACK: 1950 { 1951 struct sctp_sack_info *sack; 1952 1953 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize); 1954 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 1955 if (stcb) { 1956 sack->sack_delay = stcb->asoc.delayed_ack; 1957 sack->sack_freq = stcb->asoc.sack_freq; 1958 SCTP_TCB_UNLOCK(stcb); 1959 } else { 1960 SCTP_INP_RLOCK(inp); 1961 sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]); 1962 sack->sack_freq = inp->sctp_ep.sctp_sack_freq; 1963 SCTP_INP_RUNLOCK(inp); 1964 } 1965 *optsize = sizeof(*sack); 1966 } 1967 break; 1968 1969 case SCTP_GET_SNDBUF_USE: 1970 { 1971 struct sctp_sockstat *ss; 1972 1973 SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize); 1974 SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id); 1975 1976 if (stcb) { 1977 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size; 1978 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue + 1979 stcb->asoc.size_on_all_streams); 1980 SCTP_TCB_UNLOCK(stcb); 1981 } else { 1982 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1983 error = ENOTCONN; 1984 } 1985 *optsize = sizeof(struct sctp_sockstat); 1986 } 1987 break; 1988 case SCTP_MAX_BURST: 1989 { 1990 struct sctp_assoc_value *av; 1991 1992 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1993 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1994 1995 if (stcb) { 1996 av->assoc_value = stcb->asoc.max_burst; 1997 SCTP_TCB_UNLOCK(stcb); 1998 } else { 1999 SCTP_INP_RLOCK(inp); 2000 av->assoc_value = inp->sctp_ep.max_burst; 2001 SCTP_INP_RUNLOCK(inp); 2002 } 2003 *optsize = sizeof(struct sctp_assoc_value); 2004 2005 } 2006 break; 2007 case SCTP_MAXSEG: 2008 { 2009 struct sctp_assoc_value *av; 2010 int ovh; 2011 2012 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 2013 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2014 2015 if (stcb) { 2016 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc); 2017 SCTP_TCB_UNLOCK(stcb); 2018 } else { 2019 SCTP_INP_RLOCK(inp); 2020 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2021 ovh = SCTP_MED_OVERHEAD; 2022 } else { 2023 ovh = SCTP_MED_V4_OVERHEAD; 2024 } 2025 if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT) 2026 av->assoc_value = 0; 2027 else 2028 av->assoc_value = inp->sctp_frag_point - ovh; 2029 SCTP_INP_RUNLOCK(inp); 2030 } 2031 *optsize = sizeof(struct sctp_assoc_value); 2032 } 2033 break; 2034 case SCTP_GET_STAT_LOG: 2035 error = sctp_fill_stat_log(optval, optsize); 2036 break; 2037 case SCTP_EVENTS: 2038 { 2039 struct sctp_event_subscribe *events; 2040 2041 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize); 2042 memset(events, 0, sizeof(*events)); 2043 SCTP_INP_RLOCK(inp); 2044 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT)) 2045 events->sctp_data_io_event = 1; 2046 2047 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT)) 2048 events->sctp_association_event = 1; 2049 2050 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT)) 2051 events->sctp_address_event = 1; 2052 2053 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT)) 2054 events->sctp_send_failure_event = 1; 2055 2056 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR)) 2057 events->sctp_peer_error_event = 1; 2058 2059 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT)) 2060 events->sctp_shutdown_event = 1; 2061 2062 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT)) 2063 events->sctp_partial_delivery_event = 1; 2064 2065 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT)) 2066 events->sctp_adaptation_layer_event = 1; 2067 2068 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT)) 2069 events->sctp_authentication_event = 1; 2070 2071 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT)) 2072 events->sctp_sender_dry_event = 1; 2073 2074 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT)) 2075 events->sctp_stream_reset_event = 1; 2076 SCTP_INP_RUNLOCK(inp); 2077 *optsize = sizeof(struct sctp_event_subscribe); 2078 } 2079 break; 2080 2081 case SCTP_ADAPTATION_LAYER: 2082 { 2083 uint32_t *value; 2084 2085 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2086 2087 SCTP_INP_RLOCK(inp); 2088 *value = inp->sctp_ep.adaptation_layer_indicator; 2089 SCTP_INP_RUNLOCK(inp); 2090 *optsize = sizeof(uint32_t); 2091 } 2092 break; 2093 case SCTP_SET_INITIAL_DBG_SEQ: 2094 { 2095 uint32_t *value; 2096 2097 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2098 SCTP_INP_RLOCK(inp); 2099 *value = inp->sctp_ep.initial_sequence_debug; 2100 SCTP_INP_RUNLOCK(inp); 2101 *optsize = sizeof(uint32_t); 2102 } 2103 break; 2104 case SCTP_GET_LOCAL_ADDR_SIZE: 2105 { 2106 uint32_t *value; 2107 2108 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2109 SCTP_INP_RLOCK(inp); 2110 *value = sctp_count_max_addresses(inp); 2111 SCTP_INP_RUNLOCK(inp); 2112 *optsize = sizeof(uint32_t); 2113 } 2114 break; 2115 case SCTP_GET_REMOTE_ADDR_SIZE: 2116 { 2117 uint32_t *value; 2118 size_t size; 2119 struct sctp_nets *net; 2120 2121 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2122 /* FIXME MT: change to sctp_assoc_value? */ 2123 SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value); 2124 2125 if (stcb) { 2126 size = 0; 2127 /* Count the sizes */ 2128 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2129 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) || 2130 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 2131 size += sizeof(struct sockaddr_in6); 2132 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 2133 size += sizeof(struct sockaddr_in); 2134 } else { 2135 /* huh */ 2136 break; 2137 } 2138 } 2139 SCTP_TCB_UNLOCK(stcb); 2140 *value = (uint32_t) size; 2141 } else { 2142 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2143 error = ENOTCONN; 2144 } 2145 *optsize = sizeof(uint32_t); 2146 } 2147 break; 2148 case SCTP_GET_PEER_ADDRESSES: 2149 /* 2150 * Get the address information, an array is passed in to 2151 * fill up we pack it. 2152 */ 2153 { 2154 size_t cpsz, left; 2155 struct sockaddr_storage *sas; 2156 struct sctp_nets *net; 2157 struct sctp_getaddresses *saddr; 2158 2159 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2160 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2161 2162 if (stcb) { 2163 left = (*optsize) - sizeof(struct sctp_getaddresses); 2164 *optsize = sizeof(struct sctp_getaddresses); 2165 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2166 2167 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2168 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) || 2169 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 2170 cpsz = sizeof(struct sockaddr_in6); 2171 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 2172 cpsz = sizeof(struct sockaddr_in); 2173 } else { 2174 /* huh */ 2175 break; 2176 } 2177 if (left < cpsz) { 2178 /* not enough room. */ 2179 break; 2180 } 2181 #ifdef INET6 2182 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) && 2183 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) { 2184 /* Must map the address */ 2185 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr, 2186 (struct sockaddr_in6 *)sas); 2187 } else { 2188 #endif 2189 memcpy(sas, &net->ro._l_addr, cpsz); 2190 #ifdef INET6 2191 } 2192 #endif 2193 ((struct sockaddr_in *)sas)->sin_port = stcb->rport; 2194 2195 sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz); 2196 left -= cpsz; 2197 *optsize += cpsz; 2198 } 2199 SCTP_TCB_UNLOCK(stcb); 2200 } else { 2201 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2202 error = ENOENT; 2203 } 2204 } 2205 break; 2206 case SCTP_GET_LOCAL_ADDRESSES: 2207 { 2208 size_t limit, actual; 2209 struct sockaddr_storage *sas; 2210 struct sctp_getaddresses *saddr; 2211 2212 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2213 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2214 2215 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2216 limit = *optsize - sizeof(sctp_assoc_t); 2217 actual = sctp_fill_up_addresses(inp, stcb, limit, sas); 2218 if (stcb) { 2219 SCTP_TCB_UNLOCK(stcb); 2220 } 2221 *optsize = sizeof(struct sockaddr_storage) + actual; 2222 } 2223 break; 2224 case SCTP_PEER_ADDR_PARAMS: 2225 { 2226 struct sctp_paddrparams *paddrp; 2227 struct sctp_nets *net; 2228 2229 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize); 2230 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 2231 2232 net = NULL; 2233 if (stcb) { 2234 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 2235 } else { 2236 /* 2237 * We increment here since 2238 * sctp_findassociation_ep_addr() wil do a 2239 * decrement if it finds the stcb as long as 2240 * the locked tcb (last argument) is NOT a 2241 * TCB.. aka NULL. 2242 */ 2243 SCTP_INP_INCR_REF(inp); 2244 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL); 2245 if (stcb == NULL) { 2246 SCTP_INP_DECR_REF(inp); 2247 } 2248 } 2249 if (stcb && (net == NULL)) { 2250 struct sockaddr *sa; 2251 2252 sa = (struct sockaddr *)&paddrp->spp_address; 2253 if (sa->sa_family == AF_INET) { 2254 struct sockaddr_in *sin; 2255 2256 sin = (struct sockaddr_in *)sa; 2257 if (sin->sin_addr.s_addr) { 2258 error = EINVAL; 2259 SCTP_TCB_UNLOCK(stcb); 2260 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2261 break; 2262 } 2263 } else if (sa->sa_family == AF_INET6) { 2264 struct sockaddr_in6 *sin6; 2265 2266 sin6 = (struct sockaddr_in6 *)sa; 2267 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 2268 error = EINVAL; 2269 SCTP_TCB_UNLOCK(stcb); 2270 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2271 break; 2272 } 2273 } else { 2274 error = EAFNOSUPPORT; 2275 SCTP_TCB_UNLOCK(stcb); 2276 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2277 break; 2278 } 2279 } 2280 if (stcb) { 2281 /* Applys to the specific association */ 2282 paddrp->spp_flags = 0; 2283 if (net) { 2284 int ovh; 2285 2286 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2287 ovh = SCTP_MED_OVERHEAD; 2288 } else { 2289 ovh = SCTP_MED_V4_OVERHEAD; 2290 } 2291 2292 2293 paddrp->spp_pathmaxrxt = net->failure_threshold; 2294 paddrp->spp_pathmtu = net->mtu - ovh; 2295 /* get flags for HB */ 2296 if (net->dest_state & SCTP_ADDR_NOHB) 2297 paddrp->spp_flags |= SPP_HB_DISABLE; 2298 else 2299 paddrp->spp_flags |= SPP_HB_ENABLE; 2300 /* get flags for PMTU */ 2301 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2302 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2303 } else { 2304 paddrp->spp_flags |= SPP_PMTUD_DISABLE; 2305 } 2306 #ifdef INET 2307 if (net->ro._l_addr.sin.sin_family == AF_INET) { 2308 paddrp->spp_ipv4_tos = net->tos_flowlabel & 0x000000fc; 2309 paddrp->spp_flags |= SPP_IPV4_TOS; 2310 } 2311 #endif 2312 #ifdef INET6 2313 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 2314 paddrp->spp_ipv6_flowlabel = net->tos_flowlabel; 2315 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2316 } 2317 #endif 2318 } else { 2319 /* 2320 * No destination so return default 2321 * value 2322 */ 2323 int cnt = 0; 2324 2325 paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure; 2326 paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc); 2327 #ifdef INET 2328 paddrp->spp_ipv4_tos = stcb->asoc.default_tos & 0x000000fc; 2329 paddrp->spp_flags |= SPP_IPV4_TOS; 2330 #endif 2331 #ifdef INET6 2332 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel; 2333 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2334 #endif 2335 /* default settings should be these */ 2336 if (stcb->asoc.hb_is_disabled == 0) { 2337 paddrp->spp_flags |= SPP_HB_ENABLE; 2338 } else { 2339 paddrp->spp_flags |= SPP_HB_DISABLE; 2340 } 2341 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2342 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2343 cnt++; 2344 } 2345 } 2346 if (cnt) { 2347 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2348 } 2349 } 2350 paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay; 2351 paddrp->spp_assoc_id = sctp_get_associd(stcb); 2352 SCTP_TCB_UNLOCK(stcb); 2353 } else { 2354 /* Use endpoint defaults */ 2355 SCTP_INP_RLOCK(inp); 2356 paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure; 2357 paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]); 2358 paddrp->spp_assoc_id = (sctp_assoc_t) 0; 2359 /* get inp's default */ 2360 #ifdef INET 2361 paddrp->spp_ipv4_tos = inp->ip_inp.inp.inp_ip_tos; 2362 paddrp->spp_flags |= SPP_IPV4_TOS; 2363 #endif 2364 #ifdef INET6 2365 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2366 paddrp->spp_ipv6_flowlabel = ((struct in6pcb *)inp)->in6p_flowinfo; 2367 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2368 } 2369 #endif 2370 /* can't return this */ 2371 paddrp->spp_pathmtu = 0; 2372 2373 /* default behavior, no stcb */ 2374 paddrp->spp_flags = SPP_PMTUD_ENABLE; 2375 2376 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) { 2377 paddrp->spp_flags |= SPP_HB_ENABLE; 2378 } else { 2379 paddrp->spp_flags |= SPP_HB_DISABLE; 2380 } 2381 SCTP_INP_RUNLOCK(inp); 2382 } 2383 *optsize = sizeof(struct sctp_paddrparams); 2384 } 2385 break; 2386 case SCTP_GET_PEER_ADDR_INFO: 2387 { 2388 struct sctp_paddrinfo *paddri; 2389 struct sctp_nets *net; 2390 2391 SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize); 2392 SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id); 2393 2394 net = NULL; 2395 if (stcb) { 2396 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address); 2397 } else { 2398 /* 2399 * We increment here since 2400 * sctp_findassociation_ep_addr() wil do a 2401 * decrement if it finds the stcb as long as 2402 * the locked tcb (last argument) is NOT a 2403 * TCB.. aka NULL. 2404 */ 2405 SCTP_INP_INCR_REF(inp); 2406 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL); 2407 if (stcb == NULL) { 2408 SCTP_INP_DECR_REF(inp); 2409 } 2410 } 2411 2412 if ((stcb) && (net)) { 2413 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) { 2414 /* It's unconfirmed */ 2415 paddri->spinfo_state = SCTP_UNCONFIRMED; 2416 } else if (net->dest_state & SCTP_ADDR_REACHABLE) { 2417 /* It's active */ 2418 paddri->spinfo_state = SCTP_ACTIVE; 2419 } else { 2420 /* It's inactive */ 2421 paddri->spinfo_state = SCTP_INACTIVE; 2422 } 2423 paddri->spinfo_cwnd = net->cwnd; 2424 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT; 2425 paddri->spinfo_rto = net->RTO; 2426 paddri->spinfo_assoc_id = sctp_get_associd(stcb); 2427 SCTP_TCB_UNLOCK(stcb); 2428 } else { 2429 if (stcb) { 2430 SCTP_TCB_UNLOCK(stcb); 2431 } 2432 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2433 error = ENOENT; 2434 } 2435 *optsize = sizeof(struct sctp_paddrinfo); 2436 } 2437 break; 2438 case SCTP_PCB_STATUS: 2439 { 2440 struct sctp_pcbinfo *spcb; 2441 2442 SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize); 2443 sctp_fill_pcbinfo(spcb); 2444 *optsize = sizeof(struct sctp_pcbinfo); 2445 } 2446 break; 2447 2448 case SCTP_STATUS: 2449 { 2450 struct sctp_nets *net; 2451 struct sctp_status *sstat; 2452 2453 SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize); 2454 SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id); 2455 2456 if (stcb == NULL) { 2457 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2458 error = EINVAL; 2459 break; 2460 } 2461 /* 2462 * I think passing the state is fine since 2463 * sctp_constants.h will be available to the user 2464 * land. 2465 */ 2466 sstat->sstat_state = stcb->asoc.state; 2467 sstat->sstat_assoc_id = sctp_get_associd(stcb); 2468 sstat->sstat_rwnd = stcb->asoc.peers_rwnd; 2469 sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt; 2470 /* 2471 * We can't include chunks that have been passed to 2472 * the socket layer. Only things in queue. 2473 */ 2474 sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue + 2475 stcb->asoc.cnt_on_all_streams); 2476 2477 2478 sstat->sstat_instrms = stcb->asoc.streamincnt; 2479 sstat->sstat_outstrms = stcb->asoc.streamoutcnt; 2480 sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc); 2481 memcpy(&sstat->sstat_primary.spinfo_address, 2482 &stcb->asoc.primary_destination->ro._l_addr, 2483 ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len); 2484 net = stcb->asoc.primary_destination; 2485 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport; 2486 /* 2487 * Again the user can get info from sctp_constants.h 2488 * for what the state of the network is. 2489 */ 2490 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) { 2491 /* It's unconfirmed */ 2492 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED; 2493 } else if (net->dest_state & SCTP_ADDR_REACHABLE) { 2494 /* It's active */ 2495 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE; 2496 } else { 2497 /* It's inactive */ 2498 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE; 2499 } 2500 sstat->sstat_primary.spinfo_cwnd = net->cwnd; 2501 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT; 2502 sstat->sstat_primary.spinfo_rto = net->RTO; 2503 sstat->sstat_primary.spinfo_mtu = net->mtu; 2504 sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb); 2505 SCTP_TCB_UNLOCK(stcb); 2506 *optsize = sizeof(*sstat); 2507 } 2508 break; 2509 case SCTP_RTOINFO: 2510 { 2511 struct sctp_rtoinfo *srto; 2512 2513 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize); 2514 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 2515 2516 if (stcb) { 2517 srto->srto_initial = stcb->asoc.initial_rto; 2518 srto->srto_max = stcb->asoc.maxrto; 2519 srto->srto_min = stcb->asoc.minrto; 2520 SCTP_TCB_UNLOCK(stcb); 2521 } else { 2522 SCTP_INP_RLOCK(inp); 2523 srto->srto_initial = inp->sctp_ep.initial_rto; 2524 srto->srto_max = inp->sctp_ep.sctp_maxrto; 2525 srto->srto_min = inp->sctp_ep.sctp_minrto; 2526 SCTP_INP_RUNLOCK(inp); 2527 } 2528 *optsize = sizeof(*srto); 2529 } 2530 break; 2531 case SCTP_TIMEOUTS: 2532 { 2533 struct sctp_timeouts *stimo; 2534 2535 SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize); 2536 SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id); 2537 2538 if (stcb) { 2539 stimo->stimo_init = stcb->asoc.timoinit; 2540 stimo->stimo_data = stcb->asoc.timodata; 2541 stimo->stimo_sack = stcb->asoc.timosack; 2542 stimo->stimo_shutdown = stcb->asoc.timoshutdown; 2543 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat; 2544 stimo->stimo_cookie = stcb->asoc.timocookie; 2545 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack; 2546 SCTP_TCB_UNLOCK(stcb); 2547 } else { 2548 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2549 error = EINVAL; 2550 } 2551 *optsize = sizeof(*stimo); 2552 } 2553 break; 2554 case SCTP_ASSOCINFO: 2555 { 2556 struct sctp_assocparams *sasoc; 2557 uint32_t oldval; 2558 2559 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize); 2560 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 2561 2562 if (stcb) { 2563 oldval = sasoc->sasoc_cookie_life; 2564 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life); 2565 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times; 2566 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 2567 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd; 2568 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd; 2569 SCTP_TCB_UNLOCK(stcb); 2570 } else { 2571 SCTP_INP_RLOCK(inp); 2572 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life); 2573 sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times; 2574 sasoc->sasoc_number_peer_destinations = 0; 2575 sasoc->sasoc_peer_rwnd = 0; 2576 sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv); 2577 SCTP_INP_RUNLOCK(inp); 2578 } 2579 *optsize = sizeof(*sasoc); 2580 } 2581 break; 2582 case SCTP_DEFAULT_SEND_PARAM: 2583 { 2584 struct sctp_sndrcvinfo *s_info; 2585 2586 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize); 2587 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 2588 2589 if (stcb) { 2590 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send)); 2591 SCTP_TCB_UNLOCK(stcb); 2592 } else { 2593 SCTP_INP_RLOCK(inp); 2594 memcpy(s_info, &inp->def_send, sizeof(inp->def_send)); 2595 SCTP_INP_RUNLOCK(inp); 2596 } 2597 *optsize = sizeof(*s_info); 2598 } 2599 break; 2600 case SCTP_INITMSG: 2601 { 2602 struct sctp_initmsg *sinit; 2603 2604 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize); 2605 SCTP_INP_RLOCK(inp); 2606 sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count; 2607 sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome; 2608 sinit->sinit_max_attempts = inp->sctp_ep.max_init_times; 2609 sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max; 2610 SCTP_INP_RUNLOCK(inp); 2611 *optsize = sizeof(*sinit); 2612 } 2613 break; 2614 case SCTP_PRIMARY_ADDR: 2615 /* we allow a "get" operation on this */ 2616 { 2617 struct sctp_setprim *ssp; 2618 2619 SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize); 2620 SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id); 2621 2622 if (stcb) { 2623 /* simply copy out the sockaddr_storage... */ 2624 int len; 2625 2626 len = *optsize; 2627 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len) 2628 len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len; 2629 2630 memcpy(&ssp->ssp_addr, 2631 &stcb->asoc.primary_destination->ro._l_addr, 2632 len); 2633 SCTP_TCB_UNLOCK(stcb); 2634 } else { 2635 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2636 error = EINVAL; 2637 } 2638 *optsize = sizeof(*ssp); 2639 } 2640 break; 2641 2642 case SCTP_HMAC_IDENT: 2643 { 2644 struct sctp_hmacalgo *shmac; 2645 sctp_hmaclist_t *hmaclist; 2646 uint32_t size; 2647 int i; 2648 2649 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize); 2650 2651 SCTP_INP_RLOCK(inp); 2652 hmaclist = inp->sctp_ep.local_hmacs; 2653 if (hmaclist == NULL) { 2654 /* no HMACs to return */ 2655 *optsize = sizeof(*shmac); 2656 SCTP_INP_RUNLOCK(inp); 2657 break; 2658 } 2659 /* is there room for all of the hmac ids? */ 2660 size = sizeof(*shmac) + (hmaclist->num_algo * 2661 sizeof(shmac->shmac_idents[0])); 2662 if ((size_t)(*optsize) < size) { 2663 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2664 error = EINVAL; 2665 SCTP_INP_RUNLOCK(inp); 2666 break; 2667 } 2668 /* copy in the list */ 2669 shmac->shmac_number_of_idents = hmaclist->num_algo; 2670 for (i = 0; i < hmaclist->num_algo; i++) { 2671 shmac->shmac_idents[i] = hmaclist->hmac[i]; 2672 } 2673 SCTP_INP_RUNLOCK(inp); 2674 *optsize = size; 2675 break; 2676 } 2677 case SCTP_AUTH_ACTIVE_KEY: 2678 { 2679 struct sctp_authkeyid *scact; 2680 2681 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize); 2682 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 2683 2684 if (stcb) { 2685 /* get the active key on the assoc */ 2686 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid; 2687 SCTP_TCB_UNLOCK(stcb); 2688 } else { 2689 /* get the endpoint active key */ 2690 SCTP_INP_RLOCK(inp); 2691 scact->scact_keynumber = inp->sctp_ep.default_keyid; 2692 SCTP_INP_RUNLOCK(inp); 2693 } 2694 *optsize = sizeof(*scact); 2695 break; 2696 } 2697 case SCTP_LOCAL_AUTH_CHUNKS: 2698 { 2699 struct sctp_authchunks *sac; 2700 sctp_auth_chklist_t *chklist = NULL; 2701 size_t size = 0; 2702 2703 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2704 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2705 2706 if (stcb) { 2707 /* get off the assoc */ 2708 chklist = stcb->asoc.local_auth_chunks; 2709 /* is there enough space? */ 2710 size = sctp_auth_get_chklist_size(chklist); 2711 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2712 error = EINVAL; 2713 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2714 } else { 2715 /* copy in the chunks */ 2716 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2717 } 2718 SCTP_TCB_UNLOCK(stcb); 2719 } else { 2720 /* get off the endpoint */ 2721 SCTP_INP_RLOCK(inp); 2722 chklist = inp->sctp_ep.local_auth_chunks; 2723 /* is there enough space? */ 2724 size = sctp_auth_get_chklist_size(chklist); 2725 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2726 error = EINVAL; 2727 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2728 } else { 2729 /* copy in the chunks */ 2730 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2731 } 2732 SCTP_INP_RUNLOCK(inp); 2733 } 2734 *optsize = sizeof(struct sctp_authchunks) + size; 2735 break; 2736 } 2737 case SCTP_PEER_AUTH_CHUNKS: 2738 { 2739 struct sctp_authchunks *sac; 2740 sctp_auth_chklist_t *chklist = NULL; 2741 size_t size = 0; 2742 2743 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2744 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2745 2746 if (stcb) { 2747 /* get off the assoc */ 2748 chklist = stcb->asoc.peer_auth_chunks; 2749 /* is there enough space? */ 2750 size = sctp_auth_get_chklist_size(chklist); 2751 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2752 error = EINVAL; 2753 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2754 } else { 2755 /* copy in the chunks */ 2756 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2757 } 2758 SCTP_TCB_UNLOCK(stcb); 2759 } else { 2760 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2761 error = ENOENT; 2762 } 2763 *optsize = sizeof(struct sctp_authchunks) + size; 2764 break; 2765 } 2766 2767 2768 default: 2769 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 2770 error = ENOPROTOOPT; 2771 *optsize = 0; 2772 break; 2773 } /* end switch (sopt->sopt_name) */ 2774 return (error); 2775 } 2776 2777 static int 2778 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize, 2779 void *p) 2780 { 2781 int error, set_opt; 2782 uint32_t *mopt; 2783 struct sctp_tcb *stcb = NULL; 2784 struct sctp_inpcb *inp = NULL; 2785 uint32_t vrf_id; 2786 2787 if (optval == NULL) { 2788 SCTP_PRINTF("optval is NULL\n"); 2789 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2790 return (EINVAL); 2791 } 2792 inp = (struct sctp_inpcb *)so->so_pcb; 2793 if (inp == 0) { 2794 SCTP_PRINTF("inp is NULL?\n"); 2795 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2796 return EINVAL; 2797 } 2798 vrf_id = inp->def_vrf_id; 2799 2800 error = 0; 2801 switch (optname) { 2802 case SCTP_NODELAY: 2803 case SCTP_AUTOCLOSE: 2804 case SCTP_AUTO_ASCONF: 2805 case SCTP_EXPLICIT_EOR: 2806 case SCTP_DISABLE_FRAGMENTS: 2807 case SCTP_USE_EXT_RCVINFO: 2808 case SCTP_I_WANT_MAPPED_V4_ADDR: 2809 /* copy in the option value */ 2810 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 2811 set_opt = 0; 2812 if (error) 2813 break; 2814 switch (optname) { 2815 case SCTP_DISABLE_FRAGMENTS: 2816 set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT; 2817 break; 2818 case SCTP_AUTO_ASCONF: 2819 /* 2820 * NOTE: we don't really support this flag 2821 */ 2822 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 2823 /* only valid for bound all sockets */ 2824 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF; 2825 } else { 2826 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2827 return (EINVAL); 2828 } 2829 break; 2830 case SCTP_EXPLICIT_EOR: 2831 set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR; 2832 break; 2833 case SCTP_USE_EXT_RCVINFO: 2834 set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO; 2835 break; 2836 case SCTP_I_WANT_MAPPED_V4_ADDR: 2837 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2838 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4; 2839 } else { 2840 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2841 return (EINVAL); 2842 } 2843 break; 2844 case SCTP_NODELAY: 2845 set_opt = SCTP_PCB_FLAGS_NODELAY; 2846 break; 2847 case SCTP_AUTOCLOSE: 2848 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2849 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 2850 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2851 return (EINVAL); 2852 } 2853 set_opt = SCTP_PCB_FLAGS_AUTOCLOSE; 2854 /* 2855 * The value is in ticks. Note this does not effect 2856 * old associations, only new ones. 2857 */ 2858 inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt); 2859 break; 2860 } 2861 SCTP_INP_WLOCK(inp); 2862 if (*mopt != 0) { 2863 sctp_feature_on(inp, set_opt); 2864 } else { 2865 sctp_feature_off(inp, set_opt); 2866 } 2867 SCTP_INP_WUNLOCK(inp); 2868 break; 2869 case SCTP_REUSE_PORT: 2870 { 2871 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 2872 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) { 2873 /* Can't set it after we are bound */ 2874 error = EINVAL; 2875 break; 2876 } 2877 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) { 2878 /* Can't do this for a 1-m socket */ 2879 error = EINVAL; 2880 break; 2881 } 2882 if (optval) 2883 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE); 2884 else 2885 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE); 2886 } 2887 break; 2888 case SCTP_PARTIAL_DELIVERY_POINT: 2889 { 2890 uint32_t *value; 2891 2892 SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize); 2893 if (*value > SCTP_SB_LIMIT_RCV(so)) { 2894 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2895 error = EINVAL; 2896 break; 2897 } 2898 inp->partial_delivery_point = *value; 2899 } 2900 break; 2901 case SCTP_FRAGMENT_INTERLEAVE: 2902 /* not yet until we re-write sctp_recvmsg() */ 2903 { 2904 uint32_t *level; 2905 2906 SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize); 2907 if (*level == SCTP_FRAG_LEVEL_2) { 2908 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2909 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2910 } else if (*level == SCTP_FRAG_LEVEL_1) { 2911 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2912 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2913 } else if (*level == SCTP_FRAG_LEVEL_0) { 2914 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2915 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2916 2917 } else { 2918 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2919 error = EINVAL; 2920 } 2921 } 2922 break; 2923 case SCTP_CMT_ON_OFF: 2924 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) { 2925 struct sctp_assoc_value *av; 2926 2927 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2928 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2929 if (stcb) { 2930 stcb->asoc.sctp_cmt_on_off = av->assoc_value; 2931 if (stcb->asoc.sctp_cmt_on_off > 2) { 2932 stcb->asoc.sctp_cmt_on_off = 2; 2933 } 2934 SCTP_TCB_UNLOCK(stcb); 2935 } else { 2936 SCTP_INP_WLOCK(inp); 2937 inp->sctp_cmt_on_off = av->assoc_value; 2938 if (inp->sctp_cmt_on_off > 2) { 2939 inp->sctp_cmt_on_off = 2; 2940 } 2941 SCTP_INP_WUNLOCK(inp); 2942 } 2943 } else { 2944 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 2945 error = ENOPROTOOPT; 2946 } 2947 break; 2948 /* JRS - Set socket option for pluggable congestion control */ 2949 case SCTP_PLUGGABLE_CC: 2950 { 2951 struct sctp_assoc_value *av; 2952 struct sctp_nets *net; 2953 2954 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2955 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2956 if (stcb) { 2957 switch (av->assoc_value) { 2958 case SCTP_CC_RFC2581: 2959 case SCTP_CC_HSTCP: 2960 case SCTP_CC_HTCP: 2961 case SCTP_CC_RTCC: 2962 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value]; 2963 stcb->asoc.congestion_control_module = av->assoc_value; 2964 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) { 2965 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2966 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net); 2967 } 2968 } 2969 break; 2970 default: 2971 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2972 error = EINVAL; 2973 break; 2974 } 2975 SCTP_TCB_UNLOCK(stcb); 2976 } else { 2977 switch (av->assoc_value) { 2978 case SCTP_CC_RFC2581: 2979 case SCTP_CC_HSTCP: 2980 case SCTP_CC_HTCP: 2981 case SCTP_CC_RTCC: 2982 SCTP_INP_WLOCK(inp); 2983 inp->sctp_ep.sctp_default_cc_module = av->assoc_value; 2984 SCTP_INP_WUNLOCK(inp); 2985 break; 2986 default: 2987 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2988 error = EINVAL; 2989 break; 2990 } 2991 } 2992 } 2993 break; 2994 case SCTP_CC_OPTION: 2995 { 2996 struct sctp_cc_option *cc_opt; 2997 2998 SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize); 2999 SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id); 3000 if (stcb == NULL) { 3001 error = EINVAL; 3002 } else { 3003 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) { 3004 error = ENOTSUP; 3005 } else { 3006 error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, 3007 cc_opt); 3008 } 3009 SCTP_TCB_UNLOCK(stcb); 3010 } 3011 } 3012 break; 3013 /* RS - Set socket option for pluggable stream scheduling */ 3014 case SCTP_PLUGGABLE_SS: 3015 { 3016 struct sctp_assoc_value *av; 3017 3018 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3019 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3020 if (stcb) { 3021 switch (av->assoc_value) { 3022 case SCTP_SS_DEFAULT: 3023 case SCTP_SS_ROUND_ROBIN: 3024 case SCTP_SS_ROUND_ROBIN_PACKET: 3025 case SCTP_SS_PRIORITY: 3026 case SCTP_SS_FAIR_BANDWITH: 3027 case SCTP_SS_FIRST_COME: 3028 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1); 3029 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value]; 3030 stcb->asoc.stream_scheduling_module = av->assoc_value; 3031 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1); 3032 break; 3033 default: 3034 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3035 error = EINVAL; 3036 break; 3037 } 3038 SCTP_TCB_UNLOCK(stcb); 3039 } else { 3040 switch (av->assoc_value) { 3041 case SCTP_SS_DEFAULT: 3042 case SCTP_SS_ROUND_ROBIN: 3043 case SCTP_SS_ROUND_ROBIN_PACKET: 3044 case SCTP_SS_PRIORITY: 3045 case SCTP_SS_FAIR_BANDWITH: 3046 case SCTP_SS_FIRST_COME: 3047 SCTP_INP_WLOCK(inp); 3048 inp->sctp_ep.sctp_default_ss_module = av->assoc_value; 3049 SCTP_INP_WUNLOCK(inp); 3050 break; 3051 default: 3052 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3053 error = EINVAL; 3054 break; 3055 } 3056 } 3057 } 3058 break; 3059 case SCTP_SS_VALUE: 3060 { 3061 struct sctp_stream_value *av; 3062 3063 SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize); 3064 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3065 if (stcb) { 3066 if (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id], 3067 av->stream_value) < 0) { 3068 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3069 error = EINVAL; 3070 } 3071 SCTP_TCB_UNLOCK(stcb); 3072 } else { 3073 /* 3074 * Can't set stream value without 3075 * association 3076 */ 3077 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3078 error = EINVAL; 3079 } 3080 } 3081 break; 3082 case SCTP_CLR_STAT_LOG: 3083 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 3084 error = EOPNOTSUPP; 3085 break; 3086 case SCTP_CONTEXT: 3087 { 3088 struct sctp_assoc_value *av; 3089 3090 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3091 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3092 3093 if (stcb) { 3094 stcb->asoc.context = av->assoc_value; 3095 SCTP_TCB_UNLOCK(stcb); 3096 } else { 3097 SCTP_INP_WLOCK(inp); 3098 inp->sctp_context = av->assoc_value; 3099 SCTP_INP_WUNLOCK(inp); 3100 } 3101 } 3102 break; 3103 case SCTP_VRF_ID: 3104 { 3105 uint32_t *default_vrfid; 3106 3107 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize); 3108 if (*default_vrfid > SCTP_MAX_VRF_ID) { 3109 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3110 error = EINVAL; 3111 break; 3112 } 3113 inp->def_vrf_id = *default_vrfid; 3114 break; 3115 } 3116 case SCTP_DEL_VRF_ID: 3117 { 3118 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 3119 error = EOPNOTSUPP; 3120 break; 3121 } 3122 case SCTP_ADD_VRF_ID: 3123 { 3124 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 3125 error = EOPNOTSUPP; 3126 break; 3127 } 3128 case SCTP_DELAYED_SACK: 3129 { 3130 struct sctp_sack_info *sack; 3131 3132 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize); 3133 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 3134 if (sack->sack_delay) { 3135 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) 3136 sack->sack_delay = SCTP_MAX_SACK_DELAY; 3137 } 3138 if (stcb) { 3139 if (sack->sack_delay) { 3140 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 3141 sack->sack_delay = TICKS_TO_MSEC(1); 3142 } 3143 stcb->asoc.delayed_ack = sack->sack_delay; 3144 } 3145 if (sack->sack_freq) { 3146 stcb->asoc.sack_freq = sack->sack_freq; 3147 } 3148 SCTP_TCB_UNLOCK(stcb); 3149 } else { 3150 SCTP_INP_WLOCK(inp); 3151 if (sack->sack_delay) { 3152 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 3153 sack->sack_delay = TICKS_TO_MSEC(1); 3154 } 3155 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay); 3156 } 3157 if (sack->sack_freq) { 3158 inp->sctp_ep.sctp_sack_freq = sack->sack_freq; 3159 } 3160 SCTP_INP_WUNLOCK(inp); 3161 } 3162 break; 3163 } 3164 case SCTP_AUTH_CHUNK: 3165 { 3166 struct sctp_authchunk *sauth; 3167 3168 SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize); 3169 3170 SCTP_INP_WLOCK(inp); 3171 if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) { 3172 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3173 error = EINVAL; 3174 } 3175 SCTP_INP_WUNLOCK(inp); 3176 break; 3177 } 3178 case SCTP_AUTH_KEY: 3179 { 3180 struct sctp_authkey *sca; 3181 struct sctp_keyhead *shared_keys; 3182 sctp_sharedkey_t *shared_key; 3183 sctp_key_t *key = NULL; 3184 size_t size; 3185 3186 SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize); 3187 SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id); 3188 size = optsize - sizeof(*sca); 3189 3190 if (stcb) { 3191 /* set it on the assoc */ 3192 shared_keys = &stcb->asoc.shared_keys; 3193 /* clear the cached keys for this key id */ 3194 sctp_clear_cachedkeys(stcb, sca->sca_keynumber); 3195 /* 3196 * create the new shared key and 3197 * insert/replace it 3198 */ 3199 if (size > 0) { 3200 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3201 if (key == NULL) { 3202 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3203 error = ENOMEM; 3204 SCTP_TCB_UNLOCK(stcb); 3205 break; 3206 } 3207 } 3208 shared_key = sctp_alloc_sharedkey(); 3209 if (shared_key == NULL) { 3210 sctp_free_key(key); 3211 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3212 error = ENOMEM; 3213 SCTP_TCB_UNLOCK(stcb); 3214 break; 3215 } 3216 shared_key->key = key; 3217 shared_key->keyid = sca->sca_keynumber; 3218 error = sctp_insert_sharedkey(shared_keys, shared_key); 3219 SCTP_TCB_UNLOCK(stcb); 3220 } else { 3221 /* set it on the endpoint */ 3222 SCTP_INP_WLOCK(inp); 3223 shared_keys = &inp->sctp_ep.shared_keys; 3224 /* 3225 * clear the cached keys on all assocs for 3226 * this key id 3227 */ 3228 sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber); 3229 /* 3230 * create the new shared key and 3231 * insert/replace it 3232 */ 3233 if (size > 0) { 3234 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3235 if (key == NULL) { 3236 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3237 error = ENOMEM; 3238 SCTP_INP_WUNLOCK(inp); 3239 break; 3240 } 3241 } 3242 shared_key = sctp_alloc_sharedkey(); 3243 if (shared_key == NULL) { 3244 sctp_free_key(key); 3245 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3246 error = ENOMEM; 3247 SCTP_INP_WUNLOCK(inp); 3248 break; 3249 } 3250 shared_key->key = key; 3251 shared_key->keyid = sca->sca_keynumber; 3252 error = sctp_insert_sharedkey(shared_keys, shared_key); 3253 SCTP_INP_WUNLOCK(inp); 3254 } 3255 break; 3256 } 3257 case SCTP_HMAC_IDENT: 3258 { 3259 struct sctp_hmacalgo *shmac; 3260 sctp_hmaclist_t *hmaclist; 3261 uint16_t hmacid; 3262 uint32_t i; 3263 3264 size_t found; 3265 3266 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize); 3267 if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) { 3268 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3269 error = EINVAL; 3270 break; 3271 } 3272 hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents); 3273 if (hmaclist == NULL) { 3274 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3275 error = ENOMEM; 3276 break; 3277 } 3278 for (i = 0; i < shmac->shmac_number_of_idents; i++) { 3279 hmacid = shmac->shmac_idents[i]; 3280 if (sctp_auth_add_hmacid(hmaclist, hmacid)) { 3281 /* invalid HMACs were found */ ; 3282 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3283 error = EINVAL; 3284 sctp_free_hmaclist(hmaclist); 3285 goto sctp_set_hmac_done; 3286 } 3287 } 3288 found = 0; 3289 for (i = 0; i < hmaclist->num_algo; i++) { 3290 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) { 3291 /* already in list */ 3292 found = 1; 3293 } 3294 } 3295 if (!found) { 3296 sctp_free_hmaclist(hmaclist); 3297 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3298 error = EINVAL; 3299 break; 3300 } 3301 /* set it on the endpoint */ 3302 SCTP_INP_WLOCK(inp); 3303 if (inp->sctp_ep.local_hmacs) 3304 sctp_free_hmaclist(inp->sctp_ep.local_hmacs); 3305 inp->sctp_ep.local_hmacs = hmaclist; 3306 SCTP_INP_WUNLOCK(inp); 3307 sctp_set_hmac_done: 3308 break; 3309 } 3310 case SCTP_AUTH_ACTIVE_KEY: 3311 { 3312 struct sctp_authkeyid *scact; 3313 3314 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, 3315 optsize); 3316 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 3317 3318 /* set the active key on the right place */ 3319 if (stcb) { 3320 /* set the active key on the assoc */ 3321 if (sctp_auth_setactivekey(stcb, 3322 scact->scact_keynumber)) { 3323 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3324 SCTP_FROM_SCTP_USRREQ, 3325 EINVAL); 3326 error = EINVAL; 3327 } 3328 SCTP_TCB_UNLOCK(stcb); 3329 } else { 3330 /* set the active key on the endpoint */ 3331 SCTP_INP_WLOCK(inp); 3332 if (sctp_auth_setactivekey_ep(inp, 3333 scact->scact_keynumber)) { 3334 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3335 SCTP_FROM_SCTP_USRREQ, 3336 EINVAL); 3337 error = EINVAL; 3338 } 3339 SCTP_INP_WUNLOCK(inp); 3340 } 3341 break; 3342 } 3343 case SCTP_AUTH_DELETE_KEY: 3344 { 3345 struct sctp_authkeyid *scdel; 3346 3347 SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, 3348 optsize); 3349 SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id); 3350 3351 /* delete the key from the right place */ 3352 if (stcb) { 3353 if (sctp_delete_sharedkey(stcb, 3354 scdel->scact_keynumber)) { 3355 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3356 SCTP_FROM_SCTP_USRREQ, 3357 EINVAL); 3358 error = EINVAL; 3359 } 3360 SCTP_TCB_UNLOCK(stcb); 3361 } else { 3362 SCTP_INP_WLOCK(inp); 3363 if (sctp_delete_sharedkey_ep(inp, 3364 scdel->scact_keynumber)) { 3365 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3366 SCTP_FROM_SCTP_USRREQ, 3367 EINVAL); 3368 error = EINVAL; 3369 } 3370 SCTP_INP_WUNLOCK(inp); 3371 } 3372 break; 3373 } 3374 case SCTP_AUTH_DEACTIVATE_KEY: 3375 { 3376 struct sctp_authkeyid *keyid; 3377 3378 SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, 3379 optsize); 3380 SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id); 3381 3382 /* deactivate the key from the right place */ 3383 if (stcb) { 3384 if (sctp_deact_sharedkey(stcb, 3385 keyid->scact_keynumber)) { 3386 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3387 SCTP_FROM_SCTP_USRREQ, 3388 EINVAL); 3389 error = EINVAL; 3390 } 3391 SCTP_TCB_UNLOCK(stcb); 3392 } else { 3393 SCTP_INP_WLOCK(inp); 3394 if (sctp_deact_sharedkey_ep(inp, 3395 keyid->scact_keynumber)) { 3396 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3397 SCTP_FROM_SCTP_USRREQ, 3398 EINVAL); 3399 error = EINVAL; 3400 } 3401 SCTP_INP_WUNLOCK(inp); 3402 } 3403 break; 3404 } 3405 3406 case SCTP_RESET_STREAMS: 3407 { 3408 struct sctp_stream_reset *strrst; 3409 uint8_t send_in = 0, send_tsn = 0, send_out = 0, 3410 addstream = 0; 3411 uint16_t addstrmcnt = 0; 3412 int i; 3413 3414 SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize); 3415 SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id); 3416 3417 if (stcb == NULL) { 3418 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 3419 error = ENOENT; 3420 break; 3421 } 3422 if (stcb->asoc.peer_supports_strreset == 0) { 3423 /* 3424 * Peer does not support it, we return 3425 * protocol not supported since this is true 3426 * for this feature and this peer, not the 3427 * socket request in general. 3428 */ 3429 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT); 3430 error = EPROTONOSUPPORT; 3431 SCTP_TCB_UNLOCK(stcb); 3432 break; 3433 } 3434 if (stcb->asoc.stream_reset_outstanding) { 3435 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 3436 error = EALREADY; 3437 SCTP_TCB_UNLOCK(stcb); 3438 break; 3439 } 3440 if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) { 3441 send_in = 1; 3442 } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) { 3443 send_out = 1; 3444 } else if (strrst->strrst_flags == SCTP_RESET_BOTH) { 3445 send_in = 1; 3446 send_out = 1; 3447 } else if (strrst->strrst_flags == SCTP_RESET_TSN) { 3448 send_tsn = 1; 3449 } else if (strrst->strrst_flags == SCTP_RESET_ADD_STREAMS) { 3450 if (send_tsn || 3451 send_in || 3452 send_out) { 3453 /* We can't do that and add streams */ 3454 error = EINVAL; 3455 goto skip_stuff; 3456 } 3457 if (stcb->asoc.stream_reset_outstanding) { 3458 error = EBUSY; 3459 goto skip_stuff; 3460 } 3461 addstream = 1; 3462 /* We allocate here */ 3463 addstrmcnt = strrst->strrst_num_streams; 3464 if ((int)(addstrmcnt + stcb->asoc.streamoutcnt) > 0xffff) { 3465 /* You can't have more than 64k */ 3466 error = EINVAL; 3467 goto skip_stuff; 3468 } 3469 if ((stcb->asoc.strm_realoutsize - stcb->asoc.streamoutcnt) < addstrmcnt) { 3470 /* Need to allocate more */ 3471 struct sctp_stream_out *oldstream; 3472 struct sctp_stream_queue_pending *sp, 3473 *nsp; 3474 3475 oldstream = stcb->asoc.strmout; 3476 /* get some more */ 3477 SCTP_MALLOC(stcb->asoc.strmout, struct sctp_stream_out *, 3478 ((stcb->asoc.streamoutcnt + addstrmcnt) * sizeof(struct sctp_stream_out)), 3479 SCTP_M_STRMO); 3480 if (stcb->asoc.strmout == NULL) { 3481 stcb->asoc.strmout = oldstream; 3482 error = ENOMEM; 3483 goto skip_stuff; 3484 } 3485 /* 3486 * Ok now we proceed with copying 3487 * the old out stuff and 3488 * initializing the new stuff. 3489 */ 3490 SCTP_TCB_SEND_LOCK(stcb); 3491 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 0, 1); 3492 for (i = 0; i < stcb->asoc.streamoutcnt; i++) { 3493 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); 3494 stcb->asoc.strmout[i].next_sequence_sent = oldstream[i].next_sequence_sent; 3495 stcb->asoc.strmout[i].last_msg_incomplete = oldstream[i].last_msg_incomplete; 3496 stcb->asoc.strmout[i].stream_no = i; 3497 stcb->asoc.ss_functions.sctp_ss_init_stream(&stcb->asoc.strmout[i], &oldstream[i]); 3498 /* 3499 * now anything on those 3500 * queues? 3501 */ 3502 TAILQ_FOREACH_SAFE(sp, &oldstream[i].outqueue, next, nsp) { 3503 TAILQ_REMOVE(&oldstream[i].outqueue, sp, next); 3504 TAILQ_INSERT_TAIL(&stcb->asoc.strmout[i].outqueue, sp, next); 3505 } 3506 /* 3507 * Now move assoc pointers 3508 * too 3509 */ 3510 if (stcb->asoc.last_out_stream == &oldstream[i]) { 3511 stcb->asoc.last_out_stream = &stcb->asoc.strmout[i]; 3512 } 3513 if (stcb->asoc.locked_on_sending == &oldstream[i]) { 3514 stcb->asoc.locked_on_sending = &stcb->asoc.strmout[i]; 3515 } 3516 } 3517 /* now the new streams */ 3518 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1); 3519 for (i = stcb->asoc.streamoutcnt; i < (stcb->asoc.streamoutcnt + addstrmcnt); i++) { 3520 stcb->asoc.strmout[i].next_sequence_sent = 0x0; 3521 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); 3522 stcb->asoc.strmout[i].stream_no = i; 3523 stcb->asoc.strmout[i].last_msg_incomplete = 0; 3524 stcb->asoc.ss_functions.sctp_ss_init_stream(&stcb->asoc.strmout[i], NULL); 3525 } 3526 stcb->asoc.strm_realoutsize = stcb->asoc.streamoutcnt + addstrmcnt; 3527 SCTP_FREE(oldstream, SCTP_M_STRMO); 3528 } 3529 SCTP_TCB_SEND_UNLOCK(stcb); 3530 goto skip_stuff; 3531 } else { 3532 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3533 error = EINVAL; 3534 SCTP_TCB_UNLOCK(stcb); 3535 break; 3536 } 3537 for (i = 0; i < strrst->strrst_num_streams; i++) { 3538 if ((send_in) && 3539 3540 (strrst->strrst_list[i] > stcb->asoc.streamincnt)) { 3541 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3542 error = EINVAL; 3543 goto get_out; 3544 } 3545 if ((send_out) && 3546 (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) { 3547 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3548 error = EINVAL; 3549 goto get_out; 3550 } 3551 } 3552 skip_stuff: 3553 if (error) { 3554 get_out: 3555 SCTP_TCB_UNLOCK(stcb); 3556 break; 3557 } 3558 error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams, 3559 strrst->strrst_list, 3560 send_out, (stcb->asoc.str_reset_seq_in - 3), 3561 send_in, send_tsn, addstream, addstrmcnt); 3562 3563 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED); 3564 SCTP_TCB_UNLOCK(stcb); 3565 } 3566 break; 3567 3568 case SCTP_CONNECT_X: 3569 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 3570 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3571 error = EINVAL; 3572 break; 3573 } 3574 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0); 3575 break; 3576 3577 case SCTP_CONNECT_X_DELAYED: 3578 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 3579 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3580 error = EINVAL; 3581 break; 3582 } 3583 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1); 3584 break; 3585 3586 case SCTP_CONNECT_X_COMPLETE: 3587 { 3588 struct sockaddr *sa; 3589 struct sctp_nets *net; 3590 3591 /* FIXME MT: check correct? */ 3592 SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize); 3593 3594 /* find tcb */ 3595 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 3596 SCTP_INP_RLOCK(inp); 3597 stcb = LIST_FIRST(&inp->sctp_asoc_list); 3598 if (stcb) { 3599 SCTP_TCB_LOCK(stcb); 3600 net = sctp_findnet(stcb, sa); 3601 } 3602 SCTP_INP_RUNLOCK(inp); 3603 } else { 3604 /* 3605 * We increment here since 3606 * sctp_findassociation_ep_addr() wil do a 3607 * decrement if it finds the stcb as long as 3608 * the locked tcb (last argument) is NOT a 3609 * TCB.. aka NULL. 3610 */ 3611 SCTP_INP_INCR_REF(inp); 3612 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL); 3613 if (stcb == NULL) { 3614 SCTP_INP_DECR_REF(inp); 3615 } 3616 } 3617 3618 if (stcb == NULL) { 3619 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 3620 error = ENOENT; 3621 break; 3622 } 3623 if (stcb->asoc.delayed_connection == 1) { 3624 stcb->asoc.delayed_connection = 0; 3625 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 3626 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb, 3627 stcb->asoc.primary_destination, 3628 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9); 3629 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 3630 } else { 3631 /* 3632 * already expired or did not use delayed 3633 * connectx 3634 */ 3635 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 3636 error = EALREADY; 3637 } 3638 SCTP_TCB_UNLOCK(stcb); 3639 } 3640 break; 3641 case SCTP_MAX_BURST: 3642 { 3643 struct sctp_assoc_value *av; 3644 3645 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3646 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3647 3648 if (stcb) { 3649 stcb->asoc.max_burst = av->assoc_value; 3650 SCTP_TCB_UNLOCK(stcb); 3651 } else { 3652 SCTP_INP_WLOCK(inp); 3653 inp->sctp_ep.max_burst = av->assoc_value; 3654 SCTP_INP_WUNLOCK(inp); 3655 } 3656 } 3657 break; 3658 case SCTP_MAXSEG: 3659 { 3660 struct sctp_assoc_value *av; 3661 int ovh; 3662 3663 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3664 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3665 3666 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3667 ovh = SCTP_MED_OVERHEAD; 3668 } else { 3669 ovh = SCTP_MED_V4_OVERHEAD; 3670 } 3671 if (stcb) { 3672 if (av->assoc_value) { 3673 stcb->asoc.sctp_frag_point = (av->assoc_value + ovh); 3674 } else { 3675 stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3676 } 3677 SCTP_TCB_UNLOCK(stcb); 3678 } else { 3679 SCTP_INP_WLOCK(inp); 3680 /* 3681 * FIXME MT: I think this is not in tune 3682 * with the API ID 3683 */ 3684 if (av->assoc_value) { 3685 inp->sctp_frag_point = (av->assoc_value + ovh); 3686 } else { 3687 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3688 } 3689 SCTP_INP_WUNLOCK(inp); 3690 } 3691 } 3692 break; 3693 case SCTP_EVENTS: 3694 { 3695 struct sctp_event_subscribe *events; 3696 3697 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize); 3698 3699 SCTP_INP_WLOCK(inp); 3700 if (events->sctp_data_io_event) { 3701 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3702 } else { 3703 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3704 } 3705 3706 if (events->sctp_association_event) { 3707 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3708 } else { 3709 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3710 } 3711 3712 if (events->sctp_address_event) { 3713 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3714 } else { 3715 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3716 } 3717 3718 if (events->sctp_send_failure_event) { 3719 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3720 } else { 3721 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3722 } 3723 3724 if (events->sctp_peer_error_event) { 3725 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3726 } else { 3727 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3728 } 3729 3730 if (events->sctp_shutdown_event) { 3731 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3732 } else { 3733 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3734 } 3735 3736 if (events->sctp_partial_delivery_event) { 3737 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3738 } else { 3739 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3740 } 3741 3742 if (events->sctp_adaptation_layer_event) { 3743 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3744 } else { 3745 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3746 } 3747 3748 if (events->sctp_authentication_event) { 3749 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3750 } else { 3751 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3752 } 3753 3754 if (events->sctp_sender_dry_event) { 3755 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT); 3756 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3757 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 3758 stcb = LIST_FIRST(&inp->sctp_asoc_list); 3759 if (stcb) { 3760 SCTP_TCB_LOCK(stcb); 3761 } 3762 if (stcb && 3763 TAILQ_EMPTY(&stcb->asoc.send_queue) && 3764 TAILQ_EMPTY(&stcb->asoc.sent_queue) && 3765 (stcb->asoc.stream_queue_cnt == 0)) { 3766 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED); 3767 } 3768 if (stcb) { 3769 SCTP_TCB_UNLOCK(stcb); 3770 } 3771 } 3772 } else { 3773 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT); 3774 } 3775 3776 if (events->sctp_stream_reset_event) { 3777 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3778 } else { 3779 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3780 } 3781 SCTP_INP_WUNLOCK(inp); 3782 } 3783 break; 3784 3785 case SCTP_ADAPTATION_LAYER: 3786 { 3787 struct sctp_setadaptation *adap_bits; 3788 3789 SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize); 3790 SCTP_INP_WLOCK(inp); 3791 inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind; 3792 SCTP_INP_WUNLOCK(inp); 3793 } 3794 break; 3795 #ifdef SCTP_DEBUG 3796 case SCTP_SET_INITIAL_DBG_SEQ: 3797 { 3798 uint32_t *vvv; 3799 3800 SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize); 3801 SCTP_INP_WLOCK(inp); 3802 inp->sctp_ep.initial_sequence_debug = *vvv; 3803 SCTP_INP_WUNLOCK(inp); 3804 } 3805 break; 3806 #endif 3807 case SCTP_DEFAULT_SEND_PARAM: 3808 { 3809 struct sctp_sndrcvinfo *s_info; 3810 3811 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize); 3812 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 3813 3814 if (stcb) { 3815 if (s_info->sinfo_stream <= stcb->asoc.streamoutcnt) { 3816 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send))); 3817 } else { 3818 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3819 error = EINVAL; 3820 } 3821 SCTP_TCB_UNLOCK(stcb); 3822 } else { 3823 SCTP_INP_WLOCK(inp); 3824 memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send))); 3825 SCTP_INP_WUNLOCK(inp); 3826 } 3827 } 3828 break; 3829 case SCTP_PEER_ADDR_PARAMS: 3830 /* Applys to the specific association */ 3831 { 3832 struct sctp_paddrparams *paddrp; 3833 struct sctp_nets *net; 3834 3835 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize); 3836 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 3837 net = NULL; 3838 if (stcb) { 3839 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 3840 } else { 3841 /* 3842 * We increment here since 3843 * sctp_findassociation_ep_addr() wil do a 3844 * decrement if it finds the stcb as long as 3845 * the locked tcb (last argument) is NOT a 3846 * TCB.. aka NULL. 3847 */ 3848 SCTP_INP_INCR_REF(inp); 3849 stcb = sctp_findassociation_ep_addr(&inp, 3850 (struct sockaddr *)&paddrp->spp_address, 3851 &net, NULL, NULL); 3852 if (stcb == NULL) { 3853 SCTP_INP_DECR_REF(inp); 3854 } 3855 } 3856 if (stcb && (net == NULL)) { 3857 struct sockaddr *sa; 3858 3859 sa = (struct sockaddr *)&paddrp->spp_address; 3860 if (sa->sa_family == AF_INET) { 3861 struct sockaddr_in *sin; 3862 3863 sin = (struct sockaddr_in *)sa; 3864 if (sin->sin_addr.s_addr) { 3865 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3866 SCTP_TCB_UNLOCK(stcb); 3867 error = EINVAL; 3868 break; 3869 } 3870 } else if (sa->sa_family == AF_INET6) { 3871 struct sockaddr_in6 *sin6; 3872 3873 sin6 = (struct sockaddr_in6 *)sa; 3874 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 3875 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3876 SCTP_TCB_UNLOCK(stcb); 3877 error = EINVAL; 3878 break; 3879 } 3880 } else { 3881 error = EAFNOSUPPORT; 3882 SCTP_TCB_UNLOCK(stcb); 3883 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 3884 break; 3885 } 3886 } 3887 /* sanity checks */ 3888 if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) { 3889 if (stcb) 3890 SCTP_TCB_UNLOCK(stcb); 3891 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3892 return (EINVAL); 3893 } 3894 if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) { 3895 if (stcb) 3896 SCTP_TCB_UNLOCK(stcb); 3897 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3898 return (EINVAL); 3899 } 3900 if (stcb) { 3901 /************************TCB SPECIFIC SET ******************/ 3902 /* 3903 * do we change the timer for HB, we run 3904 * only one? 3905 */ 3906 int ovh = 0; 3907 3908 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3909 ovh = SCTP_MED_OVERHEAD; 3910 } else { 3911 ovh = SCTP_MED_V4_OVERHEAD; 3912 } 3913 3914 if (paddrp->spp_hbinterval) 3915 stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval; 3916 else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 3917 stcb->asoc.heart_beat_delay = 0; 3918 3919 /* network sets ? */ 3920 if (net) { 3921 /************************NET SPECIFIC SET ******************/ 3922 if (paddrp->spp_flags & SPP_HB_DEMAND) { 3923 /* on demand HB */ 3924 if (sctp_send_hb(stcb, 1, net) < 0) { 3925 /* asoc destroyed */ 3926 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3927 error = EINVAL; 3928 break; 3929 } 3930 } 3931 if (paddrp->spp_flags & SPP_HB_DISABLE) { 3932 net->dest_state |= SCTP_ADDR_NOHB; 3933 } 3934 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3935 net->dest_state &= ~SCTP_ADDR_NOHB; 3936 } 3937 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3938 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3939 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3940 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3941 } 3942 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3943 net->mtu = paddrp->spp_pathmtu + ovh; 3944 if (net->mtu < stcb->asoc.smallest_mtu) { 3945 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3946 } 3947 } 3948 } 3949 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3950 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3951 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3952 } 3953 } 3954 if (paddrp->spp_pathmaxrxt) 3955 net->failure_threshold = paddrp->spp_pathmaxrxt; 3956 #ifdef INET 3957 if (paddrp->spp_flags & SPP_IPV4_TOS) { 3958 if (net->ro._l_addr.sin.sin_family == AF_INET) { 3959 net->tos_flowlabel = paddrp->spp_ipv4_tos & 0x000000fc; 3960 } 3961 } 3962 #endif 3963 #ifdef INET6 3964 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) { 3965 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 3966 net->tos_flowlabel = paddrp->spp_ipv6_flowlabel; 3967 } 3968 } 3969 #endif 3970 } else { 3971 /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/ 3972 if (paddrp->spp_pathmaxrxt) 3973 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt; 3974 3975 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3976 /* Turn back on the timer */ 3977 stcb->asoc.hb_is_disabled = 0; 3978 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 3979 } 3980 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3981 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3982 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3983 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3984 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3985 } 3986 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3987 net->mtu = paddrp->spp_pathmtu + ovh; 3988 if (net->mtu < stcb->asoc.smallest_mtu) { 3989 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3990 } 3991 } 3992 } 3993 } 3994 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3995 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3996 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3997 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3998 } 3999 } 4000 } 4001 if (paddrp->spp_flags & SPP_HB_DISABLE) { 4002 int cnt_of_unconf = 0; 4003 struct sctp_nets *lnet; 4004 4005 stcb->asoc.hb_is_disabled = 1; 4006 TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) { 4007 if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) { 4008 cnt_of_unconf++; 4009 } 4010 } 4011 /* 4012 * stop the timer ONLY if we 4013 * have no unconfirmed 4014 * addresses 4015 */ 4016 if (cnt_of_unconf == 0) { 4017 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4018 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, 4019 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11); 4020 } 4021 } 4022 } 4023 if (paddrp->spp_flags & SPP_HB_ENABLE) { 4024 /* start up the timer. */ 4025 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4026 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 4027 } 4028 } 4029 #ifdef INET 4030 if (paddrp->spp_flags & SPP_IPV4_TOS) 4031 stcb->asoc.default_tos = paddrp->spp_ipv4_tos & 0x000000fc; 4032 #endif 4033 #ifdef INET6 4034 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) 4035 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel; 4036 #endif 4037 4038 } 4039 SCTP_TCB_UNLOCK(stcb); 4040 } else { 4041 /************************NO TCB, SET TO default stuff ******************/ 4042 SCTP_INP_WLOCK(inp); 4043 /* 4044 * For the TOS/FLOWLABEL stuff you set it 4045 * with the options on the socket 4046 */ 4047 if (paddrp->spp_pathmaxrxt) { 4048 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt; 4049 } 4050 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 4051 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0; 4052 else if (paddrp->spp_hbinterval) { 4053 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL) 4054 paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL; 4055 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval); 4056 } 4057 if (paddrp->spp_flags & SPP_HB_ENABLE) { 4058 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 4059 4060 } else if (paddrp->spp_flags & SPP_HB_DISABLE) { 4061 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 4062 } 4063 SCTP_INP_WUNLOCK(inp); 4064 } 4065 } 4066 break; 4067 case SCTP_RTOINFO: 4068 { 4069 struct sctp_rtoinfo *srto; 4070 uint32_t new_init, new_min, new_max; 4071 4072 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize); 4073 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 4074 4075 if (stcb) { 4076 if (srto->srto_initial) 4077 new_init = srto->srto_initial; 4078 else 4079 new_init = stcb->asoc.initial_rto; 4080 if (srto->srto_max) 4081 new_max = srto->srto_max; 4082 else 4083 new_max = stcb->asoc.maxrto; 4084 if (srto->srto_min) 4085 new_min = srto->srto_min; 4086 else 4087 new_min = stcb->asoc.minrto; 4088 if ((new_min <= new_init) && (new_init <= new_max)) { 4089 stcb->asoc.initial_rto = new_init; 4090 stcb->asoc.maxrto = new_max; 4091 stcb->asoc.minrto = new_min; 4092 } else { 4093 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4094 error = EINVAL; 4095 } 4096 SCTP_TCB_UNLOCK(stcb); 4097 } else { 4098 SCTP_INP_WLOCK(inp); 4099 if (srto->srto_initial) 4100 new_init = srto->srto_initial; 4101 else 4102 new_init = inp->sctp_ep.initial_rto; 4103 if (srto->srto_max) 4104 new_max = srto->srto_max; 4105 else 4106 new_max = inp->sctp_ep.sctp_maxrto; 4107 if (srto->srto_min) 4108 new_min = srto->srto_min; 4109 else 4110 new_min = inp->sctp_ep.sctp_minrto; 4111 if ((new_min <= new_init) && (new_init <= new_max)) { 4112 inp->sctp_ep.initial_rto = new_init; 4113 inp->sctp_ep.sctp_maxrto = new_max; 4114 inp->sctp_ep.sctp_minrto = new_min; 4115 } else { 4116 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4117 error = EINVAL; 4118 } 4119 SCTP_INP_WUNLOCK(inp); 4120 } 4121 } 4122 break; 4123 case SCTP_ASSOCINFO: 4124 { 4125 struct sctp_assocparams *sasoc; 4126 4127 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize); 4128 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 4129 if (sasoc->sasoc_cookie_life) { 4130 /* boundary check the cookie life */ 4131 if (sasoc->sasoc_cookie_life < 1000) 4132 sasoc->sasoc_cookie_life = 1000; 4133 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) { 4134 sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE; 4135 } 4136 } 4137 if (stcb) { 4138 if (sasoc->sasoc_asocmaxrxt) 4139 stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt; 4140 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 4141 sasoc->sasoc_peer_rwnd = 0; 4142 sasoc->sasoc_local_rwnd = 0; 4143 if (sasoc->sasoc_cookie_life) { 4144 stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 4145 } 4146 SCTP_TCB_UNLOCK(stcb); 4147 } else { 4148 SCTP_INP_WLOCK(inp); 4149 if (sasoc->sasoc_asocmaxrxt) 4150 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt; 4151 sasoc->sasoc_number_peer_destinations = 0; 4152 sasoc->sasoc_peer_rwnd = 0; 4153 sasoc->sasoc_local_rwnd = 0; 4154 if (sasoc->sasoc_cookie_life) { 4155 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 4156 } 4157 SCTP_INP_WUNLOCK(inp); 4158 } 4159 } 4160 break; 4161 case SCTP_INITMSG: 4162 { 4163 struct sctp_initmsg *sinit; 4164 4165 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize); 4166 SCTP_INP_WLOCK(inp); 4167 if (sinit->sinit_num_ostreams) 4168 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams; 4169 4170 if (sinit->sinit_max_instreams) 4171 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams; 4172 4173 if (sinit->sinit_max_attempts) 4174 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts; 4175 4176 if (sinit->sinit_max_init_timeo) 4177 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo; 4178 SCTP_INP_WUNLOCK(inp); 4179 } 4180 break; 4181 case SCTP_PRIMARY_ADDR: 4182 { 4183 struct sctp_setprim *spa; 4184 struct sctp_nets *net, *lnet; 4185 4186 SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize); 4187 SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id); 4188 4189 net = NULL; 4190 if (stcb) { 4191 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr); 4192 } else { 4193 /* 4194 * We increment here since 4195 * sctp_findassociation_ep_addr() wil do a 4196 * decrement if it finds the stcb as long as 4197 * the locked tcb (last argument) is NOT a 4198 * TCB.. aka NULL. 4199 */ 4200 SCTP_INP_INCR_REF(inp); 4201 stcb = sctp_findassociation_ep_addr(&inp, 4202 (struct sockaddr *)&spa->ssp_addr, 4203 &net, NULL, NULL); 4204 if (stcb == NULL) { 4205 SCTP_INP_DECR_REF(inp); 4206 } 4207 } 4208 4209 if ((stcb) && (net)) { 4210 if ((net != stcb->asoc.primary_destination) && 4211 (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) { 4212 /* Ok we need to set it */ 4213 lnet = stcb->asoc.primary_destination; 4214 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) { 4215 if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) { 4216 net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH; 4217 } 4218 net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY; 4219 } 4220 } 4221 } else { 4222 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4223 error = EINVAL; 4224 } 4225 if (stcb) { 4226 SCTP_TCB_UNLOCK(stcb); 4227 } 4228 } 4229 break; 4230 case SCTP_SET_DYNAMIC_PRIMARY: 4231 { 4232 union sctp_sockstore *ss; 4233 4234 error = priv_check(curthread, 4235 PRIV_NETINET_RESERVEDPORT); 4236 if (error) 4237 break; 4238 4239 SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize); 4240 /* SUPER USER CHECK? */ 4241 error = sctp_dynamic_set_primary(&ss->sa, vrf_id); 4242 } 4243 break; 4244 case SCTP_SET_PEER_PRIMARY_ADDR: 4245 { 4246 struct sctp_setpeerprim *sspp; 4247 4248 SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize); 4249 SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id); 4250 if (stcb != NULL) { 4251 struct sctp_ifa *ifa; 4252 4253 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr, 4254 stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED); 4255 if (ifa == NULL) { 4256 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4257 error = EINVAL; 4258 goto out_of_it; 4259 } 4260 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 4261 /* 4262 * Must validate the ifa found is in 4263 * our ep 4264 */ 4265 struct sctp_laddr *laddr; 4266 int found = 0; 4267 4268 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4269 if (laddr->ifa == NULL) { 4270 SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n", 4271 __FUNCTION__); 4272 continue; 4273 } 4274 if (laddr->ifa == ifa) { 4275 found = 1; 4276 break; 4277 } 4278 } 4279 if (!found) { 4280 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4281 error = EINVAL; 4282 goto out_of_it; 4283 } 4284 } 4285 if (sctp_set_primary_ip_address_sa(stcb, 4286 (struct sockaddr *)&sspp->sspp_addr) != 0) { 4287 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4288 error = EINVAL; 4289 } 4290 out_of_it: 4291 SCTP_TCB_UNLOCK(stcb); 4292 } else { 4293 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4294 error = EINVAL; 4295 } 4296 4297 } 4298 break; 4299 case SCTP_BINDX_ADD_ADDR: 4300 { 4301 struct sctp_getaddresses *addrs; 4302 size_t sz; 4303 struct thread *td; 4304 4305 td = (struct thread *)p; 4306 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, 4307 optsize); 4308 if (addrs->addr->sa_family == AF_INET) { 4309 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 4310 if (optsize < sz) { 4311 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4312 error = EINVAL; 4313 break; 4314 } 4315 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { 4316 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4317 break; 4318 } 4319 #ifdef INET6 4320 } else if (addrs->addr->sa_family == AF_INET6) { 4321 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 4322 if (optsize < sz) { 4323 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4324 error = EINVAL; 4325 break; 4326 } 4327 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), 4328 (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { 4329 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4330 break; 4331 } 4332 #endif 4333 } else { 4334 error = EAFNOSUPPORT; 4335 break; 4336 } 4337 sctp_bindx_add_address(so, inp, addrs->addr, 4338 addrs->sget_assoc_id, vrf_id, 4339 &error, p); 4340 } 4341 break; 4342 case SCTP_BINDX_REM_ADDR: 4343 { 4344 struct sctp_getaddresses *addrs; 4345 size_t sz; 4346 struct thread *td; 4347 4348 td = (struct thread *)p; 4349 4350 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize); 4351 if (addrs->addr->sa_family == AF_INET) { 4352 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 4353 if (optsize < sz) { 4354 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4355 error = EINVAL; 4356 break; 4357 } 4358 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { 4359 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4360 break; 4361 } 4362 #ifdef INET6 4363 } else if (addrs->addr->sa_family == AF_INET6) { 4364 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 4365 if (optsize < sz) { 4366 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4367 error = EINVAL; 4368 break; 4369 } 4370 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), 4371 (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { 4372 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4373 break; 4374 } 4375 #endif 4376 } else { 4377 error = EAFNOSUPPORT; 4378 break; 4379 } 4380 sctp_bindx_delete_address(so, inp, addrs->addr, 4381 addrs->sget_assoc_id, vrf_id, 4382 &error); 4383 } 4384 break; 4385 default: 4386 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 4387 error = ENOPROTOOPT; 4388 break; 4389 } /* end switch (opt) */ 4390 return (error); 4391 } 4392 4393 int 4394 sctp_ctloutput(struct socket *so, struct sockopt *sopt) 4395 { 4396 void *optval = NULL; 4397 size_t optsize = 0; 4398 struct sctp_inpcb *inp; 4399 void *p; 4400 int error = 0; 4401 4402 inp = (struct sctp_inpcb *)so->so_pcb; 4403 if (inp == 0) { 4404 /* I made the same as TCP since we are not setup? */ 4405 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4406 return (ECONNRESET); 4407 } 4408 if (sopt->sopt_level != IPPROTO_SCTP) { 4409 /* wrong proto level... send back up to IP */ 4410 #ifdef INET6 4411 if (INP_CHECK_SOCKAF(so, AF_INET6)) 4412 error = ip6_ctloutput(so, sopt); 4413 else 4414 #endif /* INET6 */ 4415 error = ip_ctloutput(so, sopt); 4416 return (error); 4417 } 4418 optsize = sopt->sopt_valsize; 4419 if (optsize) { 4420 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT); 4421 if (optval == NULL) { 4422 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS); 4423 return (ENOBUFS); 4424 } 4425 error = sooptcopyin(sopt, optval, optsize, optsize); 4426 if (error) { 4427 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4428 goto out; 4429 } 4430 } 4431 p = (void *)sopt->sopt_td; 4432 if (sopt->sopt_dir == SOPT_SET) { 4433 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p); 4434 } else if (sopt->sopt_dir == SOPT_GET) { 4435 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p); 4436 } else { 4437 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4438 error = EINVAL; 4439 } 4440 if ((error == 0) && (optval != NULL)) { 4441 error = sooptcopyout(sopt, optval, optsize); 4442 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4443 } else if (optval != NULL) { 4444 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4445 } 4446 out: 4447 return (error); 4448 } 4449 4450 4451 static int 4452 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p) 4453 { 4454 int error = 0; 4455 int create_lock_on = 0; 4456 uint32_t vrf_id; 4457 struct sctp_inpcb *inp; 4458 struct sctp_tcb *stcb = NULL; 4459 4460 inp = (struct sctp_inpcb *)so->so_pcb; 4461 if (inp == 0) { 4462 /* I made the same as TCP since we are not setup? */ 4463 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4464 return (ECONNRESET); 4465 } 4466 if (addr == NULL) { 4467 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4468 return EINVAL; 4469 } 4470 #ifdef INET6 4471 if (addr->sa_family == AF_INET6) { 4472 struct sockaddr_in6 *sin6p; 4473 4474 if (addr->sa_len != sizeof(struct sockaddr_in6)) { 4475 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4476 return (EINVAL); 4477 } 4478 sin6p = (struct sockaddr_in6 *)addr; 4479 if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) { 4480 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 4481 return (error); 4482 } 4483 } else 4484 #endif 4485 if (addr->sa_family == AF_INET) { 4486 struct sockaddr_in *sinp; 4487 4488 if (addr->sa_len != sizeof(struct sockaddr_in)) { 4489 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4490 return (EINVAL); 4491 } 4492 sinp = (struct sockaddr_in *)addr; 4493 if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) { 4494 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 4495 return (error); 4496 } 4497 } else { 4498 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT); 4499 return (EAFNOSUPPORT); 4500 } 4501 SCTP_INP_INCR_REF(inp); 4502 SCTP_ASOC_CREATE_LOCK(inp); 4503 create_lock_on = 1; 4504 4505 4506 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 4507 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 4508 /* Should I really unlock ? */ 4509 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 4510 error = EFAULT; 4511 goto out_now; 4512 } 4513 #ifdef INET6 4514 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 4515 (addr->sa_family == AF_INET6)) { 4516 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4517 error = EINVAL; 4518 goto out_now; 4519 } 4520 #endif /* INET6 */ 4521 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 4522 SCTP_PCB_FLAGS_UNBOUND) { 4523 /* Bind a ephemeral port */ 4524 error = sctp_inpcb_bind(so, NULL, NULL, p); 4525 if (error) { 4526 goto out_now; 4527 } 4528 } 4529 /* Now do we connect? */ 4530 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) && 4531 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) { 4532 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4533 error = EINVAL; 4534 goto out_now; 4535 } 4536 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 4537 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 4538 /* We are already connected AND the TCP model */ 4539 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 4540 error = EADDRINUSE; 4541 goto out_now; 4542 } 4543 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4544 SCTP_INP_RLOCK(inp); 4545 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4546 SCTP_INP_RUNLOCK(inp); 4547 } else { 4548 /* 4549 * We increment here since sctp_findassociation_ep_addr() 4550 * will do a decrement if it finds the stcb as long as the 4551 * locked tcb (last argument) is NOT a TCB.. aka NULL. 4552 */ 4553 SCTP_INP_INCR_REF(inp); 4554 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL); 4555 if (stcb == NULL) { 4556 SCTP_INP_DECR_REF(inp); 4557 } else { 4558 SCTP_TCB_UNLOCK(stcb); 4559 } 4560 } 4561 if (stcb != NULL) { 4562 /* Already have or am bring up an association */ 4563 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 4564 error = EALREADY; 4565 goto out_now; 4566 } 4567 vrf_id = inp->def_vrf_id; 4568 /* We are GOOD to go */ 4569 stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p); 4570 if (stcb == NULL) { 4571 /* Gak! no memory */ 4572 goto out_now; 4573 } 4574 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 4575 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 4576 /* Set the connected flag so we can queue data */ 4577 SOCKBUF_LOCK(&so->so_rcv); 4578 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; 4579 SOCKBUF_UNLOCK(&so->so_rcv); 4580 SOCKBUF_LOCK(&so->so_snd); 4581 so->so_snd.sb_state &= ~SBS_CANTSENDMORE; 4582 SOCKBUF_UNLOCK(&so->so_snd); 4583 SOCK_LOCK(so); 4584 so->so_state &= ~SS_ISDISCONNECTING; 4585 SOCK_UNLOCK(so); 4586 soisconnecting(so); 4587 } 4588 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 4589 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 4590 4591 /* initialize authentication parameters for the assoc */ 4592 sctp_initialize_auth_params(inp, stcb); 4593 4594 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 4595 SCTP_TCB_UNLOCK(stcb); 4596 out_now: 4597 if (create_lock_on) { 4598 SCTP_ASOC_CREATE_UNLOCK(inp); 4599 } 4600 SCTP_INP_DECR_REF(inp); 4601 return error; 4602 } 4603 4604 int 4605 sctp_listen(struct socket *so, int backlog, struct thread *p) 4606 { 4607 /* 4608 * Note this module depends on the protocol processing being called 4609 * AFTER any socket level flags and backlog are applied to the 4610 * socket. The traditional way that the socket flags are applied is 4611 * AFTER protocol processing. We have made a change to the 4612 * sys/kern/uipc_socket.c module to reverse this but this MUST be in 4613 * place if the socket API for SCTP is to work properly. 4614 */ 4615 4616 int error = 0; 4617 struct sctp_inpcb *inp; 4618 4619 inp = (struct sctp_inpcb *)so->so_pcb; 4620 if (inp == 0) { 4621 /* I made the same as TCP since we are not setup? */ 4622 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4623 return (ECONNRESET); 4624 } 4625 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) { 4626 /* See if we have a listener */ 4627 struct sctp_inpcb *tinp; 4628 union sctp_sockstore store, *sp; 4629 4630 sp = &store; 4631 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 4632 /* not bound all */ 4633 struct sctp_laddr *laddr; 4634 4635 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4636 memcpy(&store, &laddr->ifa->address, sizeof(store)); 4637 sp->sin.sin_port = inp->sctp_lport; 4638 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id); 4639 if (tinp && (tinp != inp) && 4640 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) && 4641 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 4642 (tinp->sctp_socket->so_qlimit)) { 4643 /* 4644 * we have a listener already and 4645 * its not this inp. 4646 */ 4647 SCTP_INP_DECR_REF(tinp); 4648 return (EADDRINUSE); 4649 } else if (tinp) { 4650 SCTP_INP_DECR_REF(tinp); 4651 } 4652 } 4653 } else { 4654 /* Setup a local addr bound all */ 4655 memset(&store, 0, sizeof(store)); 4656 store.sin.sin_port = inp->sctp_lport; 4657 #ifdef INET6 4658 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 4659 store.sa.sa_family = AF_INET6; 4660 store.sa.sa_len = sizeof(struct sockaddr_in6); 4661 } 4662 #endif 4663 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) { 4664 store.sa.sa_family = AF_INET; 4665 store.sa.sa_len = sizeof(struct sockaddr_in); 4666 } 4667 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id); 4668 if (tinp && (tinp != inp) && 4669 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) && 4670 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 4671 (tinp->sctp_socket->so_qlimit)) { 4672 /* 4673 * we have a listener already and its not 4674 * this inp. 4675 */ 4676 SCTP_INP_DECR_REF(tinp); 4677 return (EADDRINUSE); 4678 } else if (tinp) { 4679 SCTP_INP_DECR_REF(inp); 4680 } 4681 } 4682 } 4683 SCTP_INP_RLOCK(inp); 4684 #ifdef SCTP_LOCK_LOGGING 4685 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) { 4686 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK); 4687 } 4688 #endif 4689 SOCK_LOCK(so); 4690 error = solisten_proto_check(so); 4691 if (error) { 4692 SOCK_UNLOCK(so); 4693 SCTP_INP_RUNLOCK(inp); 4694 return (error); 4695 } 4696 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) && 4697 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 4698 /* 4699 * The unlucky case - We are in the tcp pool with this guy. 4700 * - Someone else is in the main inp slot. - We must move 4701 * this guy (the listener) to the main slot - We must then 4702 * move the guy that was listener to the TCP Pool. 4703 */ 4704 if (sctp_swap_inpcb_for_listen(inp)) { 4705 goto in_use; 4706 } 4707 } 4708 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 4709 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 4710 /* We are already connected AND the TCP model */ 4711 in_use: 4712 SCTP_INP_RUNLOCK(inp); 4713 SOCK_UNLOCK(so); 4714 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 4715 return (EADDRINUSE); 4716 } 4717 SCTP_INP_RUNLOCK(inp); 4718 if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) { 4719 /* We must do a bind. */ 4720 SOCK_UNLOCK(so); 4721 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) { 4722 /* bind error, probably perm */ 4723 return (error); 4724 } 4725 SOCK_LOCK(so); 4726 } 4727 /* It appears for 7.0 and on, we must always call this. */ 4728 solisten_proto(so, backlog); 4729 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 4730 /* remove the ACCEPTCONN flag for one-to-many sockets */ 4731 so->so_options &= ~SO_ACCEPTCONN; 4732 } 4733 if (backlog == 0) { 4734 /* turning off listen */ 4735 so->so_options &= ~SO_ACCEPTCONN; 4736 } 4737 SOCK_UNLOCK(so); 4738 return (error); 4739 } 4740 4741 static int sctp_defered_wakeup_cnt = 0; 4742 4743 int 4744 sctp_accept(struct socket *so, struct sockaddr **addr) 4745 { 4746 struct sctp_tcb *stcb; 4747 struct sctp_inpcb *inp; 4748 union sctp_sockstore store; 4749 4750 #ifdef INET6 4751 int error; 4752 4753 #endif 4754 inp = (struct sctp_inpcb *)so->so_pcb; 4755 4756 if (inp == 0) { 4757 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4758 return (ECONNRESET); 4759 } 4760 SCTP_INP_RLOCK(inp); 4761 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 4762 SCTP_INP_RUNLOCK(inp); 4763 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 4764 return (EOPNOTSUPP); 4765 } 4766 if (so->so_state & SS_ISDISCONNECTED) { 4767 SCTP_INP_RUNLOCK(inp); 4768 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED); 4769 return (ECONNABORTED); 4770 } 4771 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4772 if (stcb == NULL) { 4773 SCTP_INP_RUNLOCK(inp); 4774 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4775 return (ECONNRESET); 4776 } 4777 SCTP_TCB_LOCK(stcb); 4778 SCTP_INP_RUNLOCK(inp); 4779 store = stcb->asoc.primary_destination->ro._l_addr; 4780 stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE; 4781 SCTP_TCB_UNLOCK(stcb); 4782 switch (store.sa.sa_family) { 4783 case AF_INET: 4784 { 4785 struct sockaddr_in *sin; 4786 4787 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4788 if (sin == NULL) 4789 return (ENOMEM); 4790 sin->sin_family = AF_INET; 4791 sin->sin_len = sizeof(*sin); 4792 sin->sin_port = ((struct sockaddr_in *)&store)->sin_port; 4793 sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr; 4794 *addr = (struct sockaddr *)sin; 4795 break; 4796 } 4797 #ifdef INET6 4798 case AF_INET6: 4799 { 4800 struct sockaddr_in6 *sin6; 4801 4802 SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6); 4803 if (sin6 == NULL) 4804 return (ENOMEM); 4805 sin6->sin6_family = AF_INET6; 4806 sin6->sin6_len = sizeof(*sin6); 4807 sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port; 4808 4809 sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr; 4810 if ((error = sa6_recoverscope(sin6)) != 0) { 4811 SCTP_FREE_SONAME(sin6); 4812 return (error); 4813 } 4814 *addr = (struct sockaddr *)sin6; 4815 break; 4816 } 4817 #endif 4818 default: 4819 /* TSNH */ 4820 break; 4821 } 4822 /* Wake any delayed sleep action */ 4823 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { 4824 SCTP_INP_WLOCK(inp); 4825 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE; 4826 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) { 4827 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT; 4828 SCTP_INP_WUNLOCK(inp); 4829 SOCKBUF_LOCK(&inp->sctp_socket->so_snd); 4830 if (sowriteable(inp->sctp_socket)) { 4831 sowwakeup_locked(inp->sctp_socket); 4832 } else { 4833 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd); 4834 } 4835 SCTP_INP_WLOCK(inp); 4836 } 4837 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) { 4838 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT; 4839 SCTP_INP_WUNLOCK(inp); 4840 SOCKBUF_LOCK(&inp->sctp_socket->so_rcv); 4841 if (soreadable(inp->sctp_socket)) { 4842 sctp_defered_wakeup_cnt++; 4843 sorwakeup_locked(inp->sctp_socket); 4844 } else { 4845 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv); 4846 } 4847 SCTP_INP_WLOCK(inp); 4848 } 4849 SCTP_INP_WUNLOCK(inp); 4850 } 4851 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 4852 SCTP_TCB_LOCK(stcb); 4853 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7); 4854 } 4855 return (0); 4856 } 4857 4858 int 4859 sctp_ingetaddr(struct socket *so, struct sockaddr **addr) 4860 { 4861 struct sockaddr_in *sin; 4862 uint32_t vrf_id; 4863 struct sctp_inpcb *inp; 4864 struct sctp_ifa *sctp_ifa; 4865 4866 /* 4867 * Do the malloc first in case it blocks. 4868 */ 4869 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4870 if (sin == NULL) 4871 return (ENOMEM); 4872 sin->sin_family = AF_INET; 4873 sin->sin_len = sizeof(*sin); 4874 inp = (struct sctp_inpcb *)so->so_pcb; 4875 if (!inp) { 4876 SCTP_FREE_SONAME(sin); 4877 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4878 return ECONNRESET; 4879 } 4880 SCTP_INP_RLOCK(inp); 4881 sin->sin_port = inp->sctp_lport; 4882 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 4883 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4884 struct sctp_tcb *stcb; 4885 struct sockaddr_in *sin_a; 4886 struct sctp_nets *net; 4887 int fnd; 4888 4889 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4890 if (stcb == NULL) { 4891 goto notConn; 4892 } 4893 fnd = 0; 4894 sin_a = NULL; 4895 SCTP_TCB_LOCK(stcb); 4896 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4897 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 4898 if (sin_a == NULL) 4899 /* this will make coverity happy */ 4900 continue; 4901 4902 if (sin_a->sin_family == AF_INET) { 4903 fnd = 1; 4904 break; 4905 } 4906 } 4907 if ((!fnd) || (sin_a == NULL)) { 4908 /* punt */ 4909 SCTP_TCB_UNLOCK(stcb); 4910 goto notConn; 4911 } 4912 vrf_id = inp->def_vrf_id; 4913 sctp_ifa = sctp_source_address_selection(inp, 4914 stcb, 4915 (sctp_route_t *) & net->ro, 4916 net, 0, vrf_id); 4917 if (sctp_ifa) { 4918 sin->sin_addr = sctp_ifa->address.sin.sin_addr; 4919 sctp_free_ifa(sctp_ifa); 4920 } 4921 SCTP_TCB_UNLOCK(stcb); 4922 } else { 4923 /* For the bound all case you get back 0 */ 4924 notConn: 4925 sin->sin_addr.s_addr = 0; 4926 } 4927 4928 } else { 4929 /* Take the first IPv4 address in the list */ 4930 struct sctp_laddr *laddr; 4931 int fnd = 0; 4932 4933 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4934 if (laddr->ifa->address.sa.sa_family == AF_INET) { 4935 struct sockaddr_in *sin_a; 4936 4937 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa; 4938 sin->sin_addr = sin_a->sin_addr; 4939 fnd = 1; 4940 break; 4941 } 4942 } 4943 if (!fnd) { 4944 SCTP_FREE_SONAME(sin); 4945 SCTP_INP_RUNLOCK(inp); 4946 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4947 return ENOENT; 4948 } 4949 } 4950 SCTP_INP_RUNLOCK(inp); 4951 (*addr) = (struct sockaddr *)sin; 4952 return (0); 4953 } 4954 4955 int 4956 sctp_peeraddr(struct socket *so, struct sockaddr **addr) 4957 { 4958 struct sockaddr_in *sin = (struct sockaddr_in *)*addr; 4959 int fnd; 4960 struct sockaddr_in *sin_a; 4961 struct sctp_inpcb *inp; 4962 struct sctp_tcb *stcb; 4963 struct sctp_nets *net; 4964 4965 /* Do the malloc first in case it blocks. */ 4966 inp = (struct sctp_inpcb *)so->so_pcb; 4967 if ((inp == NULL) || 4968 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { 4969 /* UDP type and listeners will drop out here */ 4970 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 4971 return (ENOTCONN); 4972 } 4973 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4974 if (sin == NULL) 4975 return (ENOMEM); 4976 sin->sin_family = AF_INET; 4977 sin->sin_len = sizeof(*sin); 4978 4979 /* We must recapture incase we blocked */ 4980 inp = (struct sctp_inpcb *)so->so_pcb; 4981 if (!inp) { 4982 SCTP_FREE_SONAME(sin); 4983 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4984 return ECONNRESET; 4985 } 4986 SCTP_INP_RLOCK(inp); 4987 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4988 if (stcb) { 4989 SCTP_TCB_LOCK(stcb); 4990 } 4991 SCTP_INP_RUNLOCK(inp); 4992 if (stcb == NULL) { 4993 SCTP_FREE_SONAME(sin); 4994 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4995 return ECONNRESET; 4996 } 4997 fnd = 0; 4998 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4999 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 5000 if (sin_a->sin_family == AF_INET) { 5001 fnd = 1; 5002 sin->sin_port = stcb->rport; 5003 sin->sin_addr = sin_a->sin_addr; 5004 break; 5005 } 5006 } 5007 SCTP_TCB_UNLOCK(stcb); 5008 if (!fnd) { 5009 /* No IPv4 address */ 5010 SCTP_FREE_SONAME(sin); 5011 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 5012 return ENOENT; 5013 } 5014 (*addr) = (struct sockaddr *)sin; 5015 return (0); 5016 } 5017 5018 struct pr_usrreqs sctp_usrreqs = { 5019 .pru_abort = sctp_abort, 5020 .pru_accept = sctp_accept, 5021 .pru_attach = sctp_attach, 5022 .pru_bind = sctp_bind, 5023 .pru_connect = sctp_connect, 5024 .pru_control = in_control, 5025 .pru_close = sctp_close, 5026 .pru_detach = sctp_close, 5027 .pru_sopoll = sopoll_generic, 5028 .pru_flush = sctp_flush, 5029 .pru_disconnect = sctp_disconnect, 5030 .pru_listen = sctp_listen, 5031 .pru_peeraddr = sctp_peeraddr, 5032 .pru_send = sctp_sendm, 5033 .pru_shutdown = sctp_shutdown, 5034 .pru_sockaddr = sctp_ingetaddr, 5035 .pru_sosend = sctp_sosend, 5036 .pru_soreceive = sctp_soreceive 5037 }; 5038