sctp_usrreq.c revision 178251
1/*- 2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * a) Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * 10 * b) Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the distribution. 13 * 14 * c) Neither the name of Cisco Systems, Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31/* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $ */ 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD: head/sys/netinet/sctp_usrreq.c 178251 2008-04-16 17:24:18Z rrs $"); 35#include <netinet/sctp_os.h> 36#include <sys/proc.h> 37#include <netinet/sctp_pcb.h> 38#include <netinet/sctp_header.h> 39#include <netinet/sctp_var.h> 40#if defined(INET6) 41#include <netinet6/sctp6_var.h> 42#endif 43#include <netinet/sctp_sysctl.h> 44#include <netinet/sctp_output.h> 45#include <netinet/sctp_uio.h> 46#include <netinet/sctp_asconf.h> 47#include <netinet/sctputil.h> 48#include <netinet/sctp_indata.h> 49#include <netinet/sctp_timer.h> 50#include <netinet/sctp_auth.h> 51#include <netinet/sctp_bsd_addr.h> 52#include <netinet/sctp_cc_functions.h> 53 54 55 56 57void 58sctp_init(void) 59{ 60 /* Init the SCTP pcb in sctp_pcb.c */ 61 u_long sb_max_adj; 62 63 sctp_pcb_init(); 64 65 66 if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE) 67 sctp_max_chunks_on_queue = (nmbclusters / 8); 68 /* 69 * Allow a user to take no more than 1/2 the number of clusters or 70 * the SB_MAX whichever is smaller for the send window. 71 */ 72 sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES)); 73 sctp_sendspace = min(sb_max_adj, 74 (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT)); 75 /* 76 * Now for the recv window, should we take the same amount? or 77 * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For 78 * now I will just copy. 79 */ 80 sctp_recvspace = sctp_sendspace; 81 82} 83 84 85 86/* 87 * cleanup of the sctppcbinfo structure. 88 * Assumes that the sctppcbinfo lock is held. 89 */ 90void 91sctp_pcbinfo_cleanup(void) 92{ 93 /* free the hash tables */ 94 if (sctppcbinfo.sctp_asochash != NULL) 95 SCTP_HASH_FREE(sctppcbinfo.sctp_asochash, sctppcbinfo.hashasocmark); 96 if (sctppcbinfo.sctp_ephash != NULL) 97 SCTP_HASH_FREE(sctppcbinfo.sctp_ephash, sctppcbinfo.hashmark); 98 if (sctppcbinfo.sctp_tcpephash != NULL) 99 SCTP_HASH_FREE(sctppcbinfo.sctp_tcpephash, sctppcbinfo.hashtcpmark); 100 if (sctppcbinfo.sctp_restarthash != NULL) 101 SCTP_HASH_FREE(sctppcbinfo.sctp_restarthash, sctppcbinfo.hashrestartmark); 102} 103 104 105static void 106sctp_pathmtu_adjustment(struct sctp_inpcb *inp, 107 struct sctp_tcb *stcb, 108 struct sctp_nets *net, 109 uint16_t nxtsz) 110{ 111 struct sctp_tmit_chunk *chk; 112 113 /* Adjust that too */ 114 stcb->asoc.smallest_mtu = nxtsz; 115 /* now off to subtract IP_DF flag if needed */ 116#ifdef SCTP_PRINT_FOR_B_AND_M 117 SCTP_PRINTF("sctp_pathmtu_adjust called inp:%p stcb:%p net:%p nxtsz:%d\n", 118 inp, stcb, net, nxtsz); 119#endif 120 TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) { 121 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) { 122 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 123 } 124 } 125 TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { 126 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) { 127 /* 128 * For this guy we also mark for immediate resend 129 * since we sent to big of chunk 130 */ 131 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 132 if (chk->sent != SCTP_DATAGRAM_RESEND) { 133 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt); 134 } 135 chk->sent = SCTP_DATAGRAM_RESEND; 136 chk->rec.data.doing_fast_retransmit = 0; 137 if (sctp_logging_level & SCTP_FLIGHT_LOGGING_ENABLE) { 138 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU, 139 chk->whoTo->flight_size, 140 chk->book_size, 141 (uintptr_t) chk->whoTo, 142 chk->rec.data.TSN_seq); 143 } 144 /* Clear any time so NO RTT is being done */ 145 chk->do_rtt = 0; 146 sctp_flight_size_decrease(chk); 147 sctp_total_flight_decrease(stcb, chk); 148 } 149 } 150} 151 152static void 153sctp_notify_mbuf(struct sctp_inpcb *inp, 154 struct sctp_tcb *stcb, 155 struct sctp_nets *net, 156 struct ip *ip, 157 struct sctphdr *sh) 158{ 159 struct icmp *icmph; 160 int totsz, tmr_stopped = 0; 161 uint16_t nxtsz; 162 163 /* protection */ 164 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 165 (ip == NULL) || (sh == NULL)) { 166 if (stcb != NULL) { 167 SCTP_TCB_UNLOCK(stcb); 168 } 169 return; 170 } 171 /* First job is to verify the vtag matches what I would send */ 172 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 173 SCTP_TCB_UNLOCK(stcb); 174 return; 175 } 176 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 177 sizeof(struct ip))); 178 if (icmph->icmp_type != ICMP_UNREACH) { 179 /* We only care about unreachable */ 180 SCTP_TCB_UNLOCK(stcb); 181 return; 182 } 183 if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) { 184 /* not a unreachable message due to frag. */ 185 SCTP_TCB_UNLOCK(stcb); 186 return; 187 } 188 totsz = ip->ip_len; 189 190 nxtsz = ntohs(icmph->icmp_nextmtu); 191 if (nxtsz == 0) { 192 /* 193 * old type router that does not tell us what the next size 194 * mtu is. Rats we will have to guess (in a educated fashion 195 * of course) 196 */ 197 nxtsz = find_next_best_mtu(totsz); 198 } 199 /* Stop any PMTU timer */ 200 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 201 tmr_stopped = 1; 202 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 203 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1); 204 } 205 /* Adjust destination size limit */ 206 if (net->mtu > nxtsz) { 207 net->mtu = nxtsz; 208 } 209 /* now what about the ep? */ 210 if (stcb->asoc.smallest_mtu > nxtsz) { 211#ifdef SCTP_PRINT_FOR_B_AND_M 212 SCTP_PRINTF("notify_mbuf (ICMP) calls sctp_pathmtu_adjust mtu:%d\n", 213 nxtsz); 214#endif 215 sctp_pathmtu_adjustment(inp, stcb, net, nxtsz); 216 } 217 if (tmr_stopped) 218 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 219 220 SCTP_TCB_UNLOCK(stcb); 221} 222 223 224void 225sctp_notify(struct sctp_inpcb *inp, 226 struct ip *ip, 227 struct sctphdr *sh, 228 struct sockaddr *to, 229 struct sctp_tcb *stcb, 230 struct sctp_nets *net) 231{ 232#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 233 struct socket *so; 234 235#endif 236 /* protection */ 237 int reason; 238 struct icmp *icmph; 239 240 241 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 242 (sh == NULL) || (to == NULL)) { 243 if (stcb) 244 SCTP_TCB_UNLOCK(stcb); 245 return; 246 } 247 /* First job is to verify the vtag matches what I would send */ 248 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 249 SCTP_TCB_UNLOCK(stcb); 250 return; 251 } 252 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 253 sizeof(struct ip))); 254 if (icmph->icmp_type != ICMP_UNREACH) { 255 /* We only care about unreachable */ 256 SCTP_TCB_UNLOCK(stcb); 257 return; 258 } 259 if ((icmph->icmp_code == ICMP_UNREACH_NET) || 260 (icmph->icmp_code == ICMP_UNREACH_HOST) || 261 (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) || 262 (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) || 263 (icmph->icmp_code == ICMP_UNREACH_ISOLATED) || 264 (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) || 265 (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) || 266 (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) { 267 268 /* 269 * Hmm reachablity problems we must examine closely. If its 270 * not reachable, we may have lost a network. Or if there is 271 * NO protocol at the other end named SCTP. well we consider 272 * it a OOTB abort. 273 */ 274 if (net->dest_state & SCTP_ADDR_REACHABLE) { 275 /* Ok that destination is NOT reachable */ 276 SCTP_PRINTF("ICMP (thresh %d/%d) takes interface %p down\n", 277 net->error_count, 278 net->failure_threshold, 279 net); 280 281 net->dest_state &= ~SCTP_ADDR_REACHABLE; 282 net->dest_state |= SCTP_ADDR_NOT_REACHABLE; 283 /* 284 * JRS 5/14/07 - If a destination is unreachable, 285 * the PF bit is turned off. This allows an 286 * unambiguous use of the PF bit for destinations 287 * that are reachable but potentially failed. If the 288 * destination is set to the unreachable state, also 289 * set the destination to the PF state. 290 */ 291 /* 292 * Add debug message here if destination is not in 293 * PF state. 294 */ 295 /* Stop any running T3 timers here? */ 296 if (sctp_cmt_on_off && sctp_cmt_pf) { 297 net->dest_state &= ~SCTP_ADDR_PF; 298 SCTPDBG(SCTP_DEBUG_TIMER4, "Destination %p moved from PF to unreachable.\n", 299 net); 300 } 301 net->error_count = net->failure_threshold + 1; 302 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, 303 stcb, SCTP_FAILED_THRESHOLD, 304 (void *)net, SCTP_SO_NOT_LOCKED); 305 } 306 SCTP_TCB_UNLOCK(stcb); 307 } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) || 308 (icmph->icmp_code == ICMP_UNREACH_PORT)) { 309 /* 310 * Here the peer is either playing tricks on us, including 311 * an address that belongs to someone who does not support 312 * SCTP OR was a userland implementation that shutdown and 313 * now is dead. In either case treat it like a OOTB abort 314 * with no TCB 315 */ 316 reason = SCTP_PEER_FAULTY; 317 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED); 318#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 319 so = SCTP_INP_SO(inp); 320 atomic_add_int(&stcb->asoc.refcnt, 1); 321 SCTP_TCB_UNLOCK(stcb); 322 SCTP_SOCKET_LOCK(so, 1); 323 SCTP_TCB_LOCK(stcb); 324 atomic_subtract_int(&stcb->asoc.refcnt, 1); 325#endif 326 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2); 327#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 328 SCTP_SOCKET_UNLOCK(so, 1); 329 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */ 330#endif 331 /* no need to unlock here, since the TCB is gone */ 332 } else { 333 SCTP_TCB_UNLOCK(stcb); 334 } 335} 336 337void 338sctp_ctlinput(cmd, sa, vip) 339 int cmd; 340 struct sockaddr *sa; 341 void *vip; 342{ 343 struct ip *ip = vip; 344 struct sctphdr *sh; 345 uint32_t vrf_id; 346 347 /* FIX, for non-bsd is this right? */ 348 vrf_id = SCTP_DEFAULT_VRFID; 349 if (sa->sa_family != AF_INET || 350 ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) { 351 return; 352 } 353 if (PRC_IS_REDIRECT(cmd)) { 354 ip = 0; 355 } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) { 356 return; 357 } 358 if (ip) { 359 struct sctp_inpcb *inp = NULL; 360 struct sctp_tcb *stcb = NULL; 361 struct sctp_nets *net = NULL; 362 struct sockaddr_in to, from; 363 364 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2)); 365 bzero(&to, sizeof(to)); 366 bzero(&from, sizeof(from)); 367 from.sin_family = to.sin_family = AF_INET; 368 from.sin_len = to.sin_len = sizeof(to); 369 from.sin_port = sh->src_port; 370 from.sin_addr = ip->ip_src; 371 to.sin_port = sh->dest_port; 372 to.sin_addr = ip->ip_dst; 373 374 /* 375 * 'to' holds the dest of the packet that failed to be sent. 376 * 'from' holds our local endpoint address. Thus we reverse 377 * the to and the from in the lookup. 378 */ 379 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from, 380 (struct sockaddr *)&to, 381 &inp, &net, 1, vrf_id); 382 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) { 383 if (cmd != PRC_MSGSIZE) { 384 sctp_notify(inp, ip, sh, 385 (struct sockaddr *)&to, stcb, 386 net); 387 } else { 388 /* handle possible ICMP size messages */ 389 sctp_notify_mbuf(inp, stcb, net, ip, sh); 390 } 391 } else { 392 if ((stcb == NULL) && (inp != NULL)) { 393 /* reduce ref-count */ 394 SCTP_INP_WLOCK(inp); 395 SCTP_INP_DECR_REF(inp); 396 SCTP_INP_WUNLOCK(inp); 397 } 398 } 399 } 400 return; 401} 402 403static int 404sctp_getcred(SYSCTL_HANDLER_ARGS) 405{ 406 struct xucred xuc; 407 struct sockaddr_in addrs[2]; 408 struct sctp_inpcb *inp; 409 struct sctp_nets *net; 410 struct sctp_tcb *stcb; 411 int error; 412 uint32_t vrf_id; 413 414 /* FIX, for non-bsd is this right? */ 415 vrf_id = SCTP_DEFAULT_VRFID; 416 417 error = priv_check(req->td, PRIV_NETINET_GETCRED); 418 419 if (error) 420 return (error); 421 422 error = SYSCTL_IN(req, addrs, sizeof(addrs)); 423 if (error) 424 return (error); 425 426 stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]), 427 sintosa(&addrs[1]), 428 &inp, &net, 1, vrf_id); 429 if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) { 430 if ((inp != NULL) && (stcb == NULL)) { 431 /* reduce ref-count */ 432 SCTP_INP_WLOCK(inp); 433 SCTP_INP_DECR_REF(inp); 434 goto cred_can_cont; 435 } 436 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 437 error = ENOENT; 438 goto out; 439 } 440 SCTP_TCB_UNLOCK(stcb); 441 /* 442 * We use the write lock here, only since in the error leg we need 443 * it. If we used RLOCK, then we would have to 444 * wlock/decr/unlock/rlock. Which in theory could create a hole. 445 * Better to use higher wlock. 446 */ 447 SCTP_INP_WLOCK(inp); 448cred_can_cont: 449 error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket); 450 if (error) { 451 SCTP_INP_WUNLOCK(inp); 452 goto out; 453 } 454 cru2x(inp->sctp_socket->so_cred, &xuc); 455 SCTP_INP_WUNLOCK(inp); 456 error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred)); 457out: 458 return (error); 459} 460 461SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW, 462 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection"); 463 464 465static void 466sctp_abort(struct socket *so) 467{ 468 struct sctp_inpcb *inp; 469 uint32_t flags; 470 471 inp = (struct sctp_inpcb *)so->so_pcb; 472 if (inp == 0) { 473 return; 474 } 475sctp_must_try_again: 476 flags = inp->sctp_flags; 477#ifdef SCTP_LOG_CLOSING 478 sctp_log_closing(inp, NULL, 17); 479#endif 480 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 481 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 482#ifdef SCTP_LOG_CLOSING 483 sctp_log_closing(inp, NULL, 16); 484#endif 485 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 486 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 487 SOCK_LOCK(so); 488 SCTP_SB_CLEAR(so->so_snd); 489 /* 490 * same for the rcv ones, they are only here for the 491 * accounting/select. 492 */ 493 SCTP_SB_CLEAR(so->so_rcv); 494 495 /* Now null out the reference, we are completely detached. */ 496 so->so_pcb = NULL; 497 SOCK_UNLOCK(so); 498 } else { 499 flags = inp->sctp_flags; 500 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 501 goto sctp_must_try_again; 502 } 503 } 504 return; 505} 506 507static int 508sctp_attach(struct socket *so, int proto, struct thread *p) 509{ 510 struct sctp_inpcb *inp; 511 struct inpcb *ip_inp; 512 int error; 513 uint32_t vrf_id = SCTP_DEFAULT_VRFID; 514 515#ifdef IPSEC 516 uint32_t flags; 517 518#endif 519 inp = (struct sctp_inpcb *)so->so_pcb; 520 if (inp != 0) { 521 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 522 return EINVAL; 523 } 524 error = SCTP_SORESERVE(so, sctp_sendspace, sctp_recvspace); 525 if (error) { 526 return error; 527 } 528 error = sctp_inpcb_alloc(so, vrf_id); 529 if (error) { 530 return error; 531 } 532 inp = (struct sctp_inpcb *)so->so_pcb; 533 SCTP_INP_WLOCK(inp); 534 inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */ 535 ip_inp = &inp->ip_inp.inp; 536 ip_inp->inp_vflag |= INP_IPV4; 537 ip_inp->inp_ip_ttl = ip_defttl; 538#ifdef IPSEC 539 error = ipsec_init_policy(so, &ip_inp->inp_sp); 540#ifdef SCTP_LOG_CLOSING 541 sctp_log_closing(inp, NULL, 17); 542#endif 543 if (error != 0) { 544 flags = inp->sctp_flags; 545 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 546 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 547#ifdef SCTP_LOG_CLOSING 548 sctp_log_closing(inp, NULL, 15); 549#endif 550 SCTP_INP_WUNLOCK(inp); 551 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 552 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 553 } else { 554 SCTP_INP_WUNLOCK(inp); 555 } 556 return error; 557 } 558#endif /* IPSEC */ 559 SCTP_INP_WUNLOCK(inp); 560 return 0; 561} 562 563static int 564sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p) 565{ 566 struct sctp_inpcb *inp = NULL; 567 int error; 568 569#ifdef INET6 570 if (addr && addr->sa_family != AF_INET) { 571 /* must be a v4 address! */ 572 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 573 return EINVAL; 574 } 575#endif /* INET6 */ 576 if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) { 577 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 578 return EINVAL; 579 } 580 inp = (struct sctp_inpcb *)so->so_pcb; 581 if (inp == 0) { 582 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 583 return EINVAL; 584 } 585 error = sctp_inpcb_bind(so, addr, NULL, p); 586 return error; 587} 588 589void 590sctp_close(struct socket *so) 591{ 592 struct sctp_inpcb *inp; 593 uint32_t flags; 594 595 inp = (struct sctp_inpcb *)so->so_pcb; 596 if (inp == 0) 597 return; 598 599 /* 600 * Inform all the lower layer assoc that we are done. 601 */ 602sctp_must_try_again: 603 flags = inp->sctp_flags; 604#ifdef SCTP_LOG_CLOSING 605 sctp_log_closing(inp, NULL, 17); 606#endif 607 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 608 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 609 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) || 610 (so->so_rcv.sb_cc > 0)) { 611#ifdef SCTP_LOG_CLOSING 612 sctp_log_closing(inp, NULL, 13); 613#endif 614 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 615 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 616 } else { 617#ifdef SCTP_LOG_CLOSING 618 sctp_log_closing(inp, NULL, 14); 619#endif 620 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE, 621 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 622 } 623 /* 624 * The socket is now detached, no matter what the state of 625 * the SCTP association. 626 */ 627 SOCK_LOCK(so); 628 SCTP_SB_CLEAR(so->so_snd); 629 /* 630 * same for the rcv ones, they are only here for the 631 * accounting/select. 632 */ 633 SCTP_SB_CLEAR(so->so_rcv); 634 635 /* Now null out the reference, we are completely detached. */ 636 so->so_pcb = NULL; 637 SOCK_UNLOCK(so); 638 } else { 639 flags = inp->sctp_flags; 640 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 641 goto sctp_must_try_again; 642 } 643 } 644 return; 645} 646 647 648int 649sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 650 struct mbuf *control, struct thread *p); 651 652 653int 654sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 655 struct mbuf *control, struct thread *p) 656{ 657 struct sctp_inpcb *inp; 658 int error; 659 660 inp = (struct sctp_inpcb *)so->so_pcb; 661 if (inp == 0) { 662 if (control) { 663 sctp_m_freem(control); 664 control = NULL; 665 } 666 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 667 sctp_m_freem(m); 668 return EINVAL; 669 } 670 /* Got to have an to address if we are NOT a connected socket */ 671 if ((addr == NULL) && 672 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) || 673 (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE)) 674 ) { 675 goto connected_type; 676 } else if (addr == NULL) { 677 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 678 error = EDESTADDRREQ; 679 sctp_m_freem(m); 680 if (control) { 681 sctp_m_freem(control); 682 control = NULL; 683 } 684 return (error); 685 } 686#ifdef INET6 687 if (addr->sa_family != AF_INET) { 688 /* must be a v4 address! */ 689 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 690 sctp_m_freem(m); 691 if (control) { 692 sctp_m_freem(control); 693 control = NULL; 694 } 695 error = EDESTADDRREQ; 696 return EDESTADDRREQ; 697 } 698#endif /* INET6 */ 699connected_type: 700 /* now what about control */ 701 if (control) { 702 if (inp->control) { 703 SCTP_PRINTF("huh? control set?\n"); 704 sctp_m_freem(inp->control); 705 inp->control = NULL; 706 } 707 inp->control = control; 708 } 709 /* Place the data */ 710 if (inp->pkt) { 711 SCTP_BUF_NEXT(inp->pkt_last) = m; 712 inp->pkt_last = m; 713 } else { 714 inp->pkt_last = inp->pkt = m; 715 } 716 if ( 717 /* FreeBSD uses a flag passed */ 718 ((flags & PRUS_MORETOCOME) == 0) 719 ) { 720 /* 721 * note with the current version this code will only be used 722 * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for 723 * re-defining sosend to use the sctp_sosend. One can 724 * optionally switch back to this code (by changing back the 725 * definitions) but this is not advisable. This code is used 726 * by FreeBSD when sending a file with sendfile() though. 727 */ 728 int ret; 729 730 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags); 731 inp->pkt = NULL; 732 inp->control = NULL; 733 return (ret); 734 } else { 735 return (0); 736 } 737} 738 739int 740sctp_disconnect(struct socket *so) 741{ 742 struct sctp_inpcb *inp; 743 744 inp = (struct sctp_inpcb *)so->so_pcb; 745 if (inp == NULL) { 746 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 747 return (ENOTCONN); 748 } 749 SCTP_INP_RLOCK(inp); 750 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 751 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 752 if (SCTP_LIST_EMPTY(&inp->sctp_asoc_list)) { 753 /* No connection */ 754 SCTP_INP_RUNLOCK(inp); 755 return (0); 756 } else { 757 struct sctp_association *asoc; 758 struct sctp_tcb *stcb; 759 760 stcb = LIST_FIRST(&inp->sctp_asoc_list); 761 if (stcb == NULL) { 762 SCTP_INP_RUNLOCK(inp); 763 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 764 return (EINVAL); 765 } 766 SCTP_TCB_LOCK(stcb); 767 asoc = &stcb->asoc; 768 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 769 /* We are about to be freed, out of here */ 770 SCTP_TCB_UNLOCK(stcb); 771 SCTP_INP_RUNLOCK(inp); 772 return (0); 773 } 774 if (((so->so_options & SO_LINGER) && 775 (so->so_linger == 0)) || 776 (so->so_rcv.sb_cc > 0)) { 777 if (SCTP_GET_STATE(asoc) != 778 SCTP_STATE_COOKIE_WAIT) { 779 /* Left with Data unread */ 780 struct mbuf *err; 781 782 err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA); 783 if (err) { 784 /* 785 * Fill in the user 786 * initiated abort 787 */ 788 struct sctp_paramhdr *ph; 789 790 ph = mtod(err, struct sctp_paramhdr *); 791 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr); 792 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT); 793 ph->param_length = htons(SCTP_BUF_LEN(err)); 794 } 795#if defined(SCTP_PANIC_ON_ABORT) 796 panic("disconnect does an abort"); 797#endif 798 sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED); 799 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 800 } 801 SCTP_INP_RUNLOCK(inp); 802 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 803 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 804 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 805 } 806 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3); 807 /* No unlock tcb assoc is gone */ 808 return (0); 809 } 810 if (TAILQ_EMPTY(&asoc->send_queue) && 811 TAILQ_EMPTY(&asoc->sent_queue) && 812 (asoc->stream_queue_cnt == 0)) { 813 /* there is nothing queued to send, so done */ 814 if (asoc->locked_on_sending) { 815 goto abort_anyway; 816 } 817 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) && 818 (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) { 819 /* only send SHUTDOWN 1st time thru */ 820 sctp_stop_timers_for_shutdown(stcb); 821 sctp_send_shutdown(stcb, 822 stcb->asoc.primary_destination); 823 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 824 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 825 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 826 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 827 } 828 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 829 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 830 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 831 stcb->sctp_ep, stcb, 832 asoc->primary_destination); 833 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 834 stcb->sctp_ep, stcb, 835 asoc->primary_destination); 836 } 837 } else { 838 /* 839 * we still got (or just got) data to send, 840 * so set SHUTDOWN_PENDING 841 */ 842 /* 843 * XXX sockets draft says that SCTP_EOF 844 * should be sent with no data. currently, 845 * we will allow user data to be sent first 846 * and move to SHUTDOWN-PENDING 847 */ 848 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 849 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 850 asoc->primary_destination); 851 if (asoc->locked_on_sending) { 852 /* Locked to send out the data */ 853 struct sctp_stream_queue_pending *sp; 854 855 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 856 if (sp == NULL) { 857 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 858 asoc->locked_on_sending->stream_no); 859 } else { 860 if ((sp->length == 0) && (sp->msg_is_complete == 0)) 861 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 862 } 863 } 864 if (TAILQ_EMPTY(&asoc->send_queue) && 865 TAILQ_EMPTY(&asoc->sent_queue) && 866 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 867 struct mbuf *op_err; 868 869 abort_anyway: 870 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 871 0, M_DONTWAIT, 1, MT_DATA); 872 if (op_err) { 873 /* 874 * Fill in the user 875 * initiated abort 876 */ 877 struct sctp_paramhdr *ph; 878 uint32_t *ippp; 879 880 SCTP_BUF_LEN(op_err) = 881 (sizeof(struct sctp_paramhdr) + sizeof(uint32_t)); 882 ph = mtod(op_err, 883 struct sctp_paramhdr *); 884 ph->param_type = htons( 885 SCTP_CAUSE_USER_INITIATED_ABT); 886 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 887 ippp = (uint32_t *) (ph + 1); 888 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4); 889 } 890#if defined(SCTP_PANIC_ON_ABORT) 891 panic("disconnect does an abort"); 892#endif 893 894 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4; 895 sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED); 896 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 897 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 898 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 899 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 900 } 901 SCTP_INP_RUNLOCK(inp); 902 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5); 903 return (0); 904 } else { 905 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 906 } 907 } 908 SCTP_TCB_UNLOCK(stcb); 909 SCTP_INP_RUNLOCK(inp); 910 return (0); 911 } 912 /* not reached */ 913 } else { 914 /* UDP model does not support this */ 915 SCTP_INP_RUNLOCK(inp); 916 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 917 return EOPNOTSUPP; 918 } 919} 920 921int 922sctp_flush(struct socket *so, int how) 923{ 924 /* 925 * We will just clear out the values and let subsequent close clear 926 * out the data, if any. Note if the user did a shutdown(SHUT_RD) 927 * they will not be able to read the data, the socket will block 928 * that from happening. 929 */ 930 if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) { 931 /* 932 * First make sure the sb will be happy, we don't use these 933 * except maybe the count 934 */ 935 so->so_rcv.sb_cc = 0; 936 so->so_rcv.sb_mbcnt = 0; 937 so->so_rcv.sb_mb = NULL; 938 } 939 if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) { 940 /* 941 * First make sure the sb will be happy, we don't use these 942 * except maybe the count 943 */ 944 so->so_snd.sb_cc = 0; 945 so->so_snd.sb_mbcnt = 0; 946 so->so_snd.sb_mb = NULL; 947 948 } 949 return (0); 950} 951 952int 953sctp_shutdown(struct socket *so) 954{ 955 struct sctp_inpcb *inp; 956 957 inp = (struct sctp_inpcb *)so->so_pcb; 958 if (inp == 0) { 959 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 960 return EINVAL; 961 } 962 SCTP_INP_RLOCK(inp); 963 /* For UDP model this is a invalid call */ 964 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 965 /* Restore the flags that the soshutdown took away. */ 966 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; 967 /* This proc will wakeup for read and do nothing (I hope) */ 968 SCTP_INP_RUNLOCK(inp); 969 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 970 return (EOPNOTSUPP); 971 } 972 /* 973 * Ok if we reach here its the TCP model and it is either a SHUT_WR 974 * or SHUT_RDWR. This means we put the shutdown flag against it. 975 */ 976 { 977 struct sctp_tcb *stcb; 978 struct sctp_association *asoc; 979 980 socantsendmore(so); 981 982 stcb = LIST_FIRST(&inp->sctp_asoc_list); 983 if (stcb == NULL) { 984 /* 985 * Ok we hit the case that the shutdown call was 986 * made after an abort or something. Nothing to do 987 * now. 988 */ 989 SCTP_INP_RUNLOCK(inp); 990 return (0); 991 } 992 SCTP_TCB_LOCK(stcb); 993 asoc = &stcb->asoc; 994 if (TAILQ_EMPTY(&asoc->send_queue) && 995 TAILQ_EMPTY(&asoc->sent_queue) && 996 (asoc->stream_queue_cnt == 0)) { 997 if (asoc->locked_on_sending) { 998 goto abort_anyway; 999 } 1000 /* there is nothing queued to send, so I'm done... */ 1001 if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) { 1002 /* only send SHUTDOWN the first time through */ 1003 sctp_stop_timers_for_shutdown(stcb); 1004 sctp_send_shutdown(stcb, 1005 stcb->asoc.primary_destination); 1006 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 1007 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 1008 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 1009 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 1010 } 1011 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 1012 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 1013 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 1014 stcb->sctp_ep, stcb, 1015 asoc->primary_destination); 1016 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 1017 stcb->sctp_ep, stcb, 1018 asoc->primary_destination); 1019 } 1020 } else { 1021 /* 1022 * we still got (or just got) data to send, so set 1023 * SHUTDOWN_PENDING 1024 */ 1025 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 1026 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 1027 asoc->primary_destination); 1028 1029 if (asoc->locked_on_sending) { 1030 /* Locked to send out the data */ 1031 struct sctp_stream_queue_pending *sp; 1032 1033 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 1034 if (sp == NULL) { 1035 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 1036 asoc->locked_on_sending->stream_no); 1037 } else { 1038 if ((sp->length == 0) && (sp->msg_is_complete == 0)) { 1039 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 1040 } 1041 } 1042 } 1043 if (TAILQ_EMPTY(&asoc->send_queue) && 1044 TAILQ_EMPTY(&asoc->sent_queue) && 1045 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 1046 struct mbuf *op_err; 1047 1048 abort_anyway: 1049 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 1050 0, M_DONTWAIT, 1, MT_DATA); 1051 if (op_err) { 1052 /* Fill in the user initiated abort */ 1053 struct sctp_paramhdr *ph; 1054 uint32_t *ippp; 1055 1056 SCTP_BUF_LEN(op_err) = 1057 sizeof(struct sctp_paramhdr) + sizeof(uint32_t); 1058 ph = mtod(op_err, 1059 struct sctp_paramhdr *); 1060 ph->param_type = htons( 1061 SCTP_CAUSE_USER_INITIATED_ABT); 1062 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 1063 ippp = (uint32_t *) (ph + 1); 1064 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1065 } 1066#if defined(SCTP_PANIC_ON_ABORT) 1067 panic("shutdown does an abort"); 1068#endif 1069 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6; 1070 sctp_abort_an_association(stcb->sctp_ep, stcb, 1071 SCTP_RESPONSE_TO_USER_REQ, 1072 op_err, SCTP_SO_LOCKED); 1073 goto skip_unlock; 1074 } else { 1075 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 1076 } 1077 } 1078 SCTP_TCB_UNLOCK(stcb); 1079 } 1080skip_unlock: 1081 SCTP_INP_RUNLOCK(inp); 1082 return 0; 1083} 1084 1085/* 1086 * copies a "user" presentable address and removes embedded scope, etc. 1087 * returns 0 on success, 1 on error 1088 */ 1089static uint32_t 1090sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa) 1091{ 1092#ifdef INET6 1093 struct sockaddr_in6 lsa6; 1094 1095 sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa, 1096 &lsa6); 1097#endif 1098 memcpy(ss, sa, sa->sa_len); 1099 return (0); 1100} 1101 1102 1103 1104/* 1105 * NOTE: assumes addr lock is held 1106 */ 1107static size_t 1108sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp, 1109 struct sctp_tcb *stcb, 1110 size_t limit, 1111 struct sockaddr_storage *sas, 1112 uint32_t vrf_id) 1113{ 1114 struct sctp_ifn *sctp_ifn; 1115 struct sctp_ifa *sctp_ifa; 1116 int loopback_scope, ipv4_local_scope, local_scope, site_scope; 1117 size_t actual; 1118 int ipv4_addr_legal, ipv6_addr_legal; 1119 struct sctp_vrf *vrf; 1120 1121 actual = 0; 1122 if (limit <= 0) 1123 return (actual); 1124 1125 if (stcb) { 1126 /* Turn on all the appropriate scope */ 1127 loopback_scope = stcb->asoc.loopback_scope; 1128 ipv4_local_scope = stcb->asoc.ipv4_local_scope; 1129 local_scope = stcb->asoc.local_scope; 1130 site_scope = stcb->asoc.site_scope; 1131 } else { 1132 /* Turn on ALL scope, since we look at the EP */ 1133 loopback_scope = ipv4_local_scope = local_scope = 1134 site_scope = 1; 1135 } 1136 ipv4_addr_legal = ipv6_addr_legal = 0; 1137 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1138 ipv6_addr_legal = 1; 1139 if (SCTP_IPV6_V6ONLY(inp) == 0) { 1140 ipv4_addr_legal = 1; 1141 } 1142 } else { 1143 ipv4_addr_legal = 1; 1144 } 1145 vrf = sctp_find_vrf(vrf_id); 1146 if (vrf == NULL) { 1147 return (0); 1148 } 1149 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1150 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1151 if ((loopback_scope == 0) && 1152 SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) { 1153 /* Skip loopback if loopback_scope not set */ 1154 continue; 1155 } 1156 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1157 if (stcb) { 1158 /* 1159 * For the BOUND-ALL case, the list 1160 * associated with a TCB is Always 1161 * considered a reverse list.. i.e. 1162 * it lists addresses that are NOT 1163 * part of the association. If this 1164 * is one of those we must skip it. 1165 */ 1166 if (sctp_is_addr_restricted(stcb, 1167 sctp_ifa)) { 1168 continue; 1169 } 1170 } 1171 switch (sctp_ifa->address.sa.sa_family) { 1172 case AF_INET: 1173 if (ipv4_addr_legal) { 1174 struct sockaddr_in *sin; 1175 1176 sin = (struct sockaddr_in *)&sctp_ifa->address.sa; 1177 if (sin->sin_addr.s_addr == 0) { 1178 /* 1179 * we skip 1180 * unspecifed 1181 * addresses 1182 */ 1183 continue; 1184 } 1185 if ((ipv4_local_scope == 0) && 1186 (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) { 1187 continue; 1188 } 1189#ifdef INET6 1190 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) { 1191 in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas); 1192 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1193 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6)); 1194 actual += sizeof(struct sockaddr_in6); 1195 } else { 1196#endif 1197 memcpy(sas, sin, sizeof(*sin)); 1198 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport; 1199 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin)); 1200 actual += sizeof(*sin); 1201#ifdef INET6 1202 } 1203#endif 1204 if (actual >= limit) { 1205 return (actual); 1206 } 1207 } else { 1208 continue; 1209 } 1210 break; 1211#ifdef INET6 1212 case AF_INET6: 1213 if (ipv6_addr_legal) { 1214 struct sockaddr_in6 *sin6; 1215 1216 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa; 1217 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 1218 /* 1219 * we skip 1220 * unspecifed 1221 * addresses 1222 */ 1223 continue; 1224 } 1225 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 1226 if (local_scope == 0) 1227 continue; 1228 if (sin6->sin6_scope_id == 0) { 1229 if (sa6_recoverscope(sin6) != 0) 1230 /* 1231 * 1232 * bad 1233 * 1234 * li 1235 * nk 1236 * 1237 * loc 1238 * al 1239 * 1240 * add 1241 * re 1242 * ss 1243 * */ 1244 continue; 1245 } 1246 } 1247 if ((site_scope == 0) && 1248 (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) { 1249 continue; 1250 } 1251 memcpy(sas, sin6, sizeof(*sin6)); 1252 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1253 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6)); 1254 actual += sizeof(*sin6); 1255 if (actual >= limit) { 1256 return (actual); 1257 } 1258 } else { 1259 continue; 1260 } 1261 break; 1262#endif 1263 default: 1264 /* TSNH */ 1265 break; 1266 } 1267 } 1268 } 1269 } else { 1270 struct sctp_laddr *laddr; 1271 1272 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1273 if (stcb) { 1274 if (sctp_is_addr_restricted(stcb, laddr->ifa)) { 1275 continue; 1276 } 1277 } 1278 if (sctp_fill_user_address(sas, &laddr->ifa->address.sa)) 1279 continue; 1280 1281 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1282 sas = (struct sockaddr_storage *)((caddr_t)sas + 1283 laddr->ifa->address.sa.sa_len); 1284 actual += laddr->ifa->address.sa.sa_len; 1285 if (actual >= limit) { 1286 return (actual); 1287 } 1288 } 1289 } 1290 return (actual); 1291} 1292 1293static size_t 1294sctp_fill_up_addresses(struct sctp_inpcb *inp, 1295 struct sctp_tcb *stcb, 1296 size_t limit, 1297 struct sockaddr_storage *sas) 1298{ 1299 size_t size = 0; 1300 1301 SCTP_IPI_ADDR_RLOCK(); 1302 /* fill up addresses for the endpoint's default vrf */ 1303 size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas, 1304 inp->def_vrf_id); 1305 SCTP_IPI_ADDR_RUNLOCK(); 1306 return (size); 1307} 1308 1309/* 1310 * NOTE: assumes addr lock is held 1311 */ 1312static int 1313sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id) 1314{ 1315 int cnt = 0; 1316 struct sctp_vrf *vrf = NULL; 1317 1318 /* 1319 * In both sub-set bound an bound_all cases we return the MAXIMUM 1320 * number of addresses that you COULD get. In reality the sub-set 1321 * bound may have an exclusion list for a given TCB OR in the 1322 * bound-all case a TCB may NOT include the loopback or other 1323 * addresses as well. 1324 */ 1325 vrf = sctp_find_vrf(vrf_id); 1326 if (vrf == NULL) { 1327 return (0); 1328 } 1329 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1330 struct sctp_ifn *sctp_ifn; 1331 struct sctp_ifa *sctp_ifa; 1332 1333 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1334 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1335 /* Count them if they are the right type */ 1336 if (sctp_ifa->address.sa.sa_family == AF_INET) { 1337 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1338 cnt += sizeof(struct sockaddr_in6); 1339 else 1340 cnt += sizeof(struct sockaddr_in); 1341 1342 } else if (sctp_ifa->address.sa.sa_family == AF_INET6) 1343 cnt += sizeof(struct sockaddr_in6); 1344 } 1345 } 1346 } else { 1347 struct sctp_laddr *laddr; 1348 1349 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1350 if (laddr->ifa->address.sa.sa_family == AF_INET) { 1351 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1352 cnt += sizeof(struct sockaddr_in6); 1353 else 1354 cnt += sizeof(struct sockaddr_in); 1355 1356 } else if (laddr->ifa->address.sa.sa_family == AF_INET6) 1357 cnt += sizeof(struct sockaddr_in6); 1358 } 1359 } 1360 return (cnt); 1361} 1362 1363static int 1364sctp_count_max_addresses(struct sctp_inpcb *inp) 1365{ 1366 int cnt = 0; 1367 1368 SCTP_IPI_ADDR_RLOCK(); 1369 /* count addresses for the endpoint's default VRF */ 1370 cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id); 1371 SCTP_IPI_ADDR_RUNLOCK(); 1372 return (cnt); 1373} 1374 1375static int 1376sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval, 1377 size_t optsize, void *p, int delay) 1378{ 1379 int error = 0; 1380 int creat_lock_on = 0; 1381 struct sctp_tcb *stcb = NULL; 1382 struct sockaddr *sa; 1383 int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr; 1384 int added = 0; 1385 uint32_t vrf_id; 1386 int bad_addresses = 0; 1387 sctp_assoc_t *a_id; 1388 1389 SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n"); 1390 1391 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 1392 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 1393 /* We are already connected AND the TCP model */ 1394 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 1395 return (EADDRINUSE); 1396 } 1397 if (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) { 1398 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1399 return (EINVAL); 1400 } 1401 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 1402 SCTP_INP_RLOCK(inp); 1403 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1404 SCTP_INP_RUNLOCK(inp); 1405 } 1406 if (stcb) { 1407 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1408 return (EALREADY); 1409 } 1410 SCTP_INP_INCR_REF(inp); 1411 SCTP_ASOC_CREATE_LOCK(inp); 1412 creat_lock_on = 1; 1413 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 1414 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 1415 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 1416 error = EFAULT; 1417 goto out_now; 1418 } 1419 totaddrp = (int *)optval; 1420 totaddr = *totaddrp; 1421 sa = (struct sockaddr *)(totaddrp + 1); 1422 stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses); 1423 if ((stcb != NULL) || bad_addresses) { 1424 /* Already have or am bring up an association */ 1425 SCTP_ASOC_CREATE_UNLOCK(inp); 1426 creat_lock_on = 0; 1427 if (stcb) 1428 SCTP_TCB_UNLOCK(stcb); 1429 if (bad_addresses == 0) { 1430 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1431 error = EALREADY; 1432 } 1433 goto out_now; 1434 } 1435#ifdef INET6 1436 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 1437 (num_v6 > 0)) { 1438 error = EINVAL; 1439 goto out_now; 1440 } 1441 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && 1442 (num_v4 > 0)) { 1443 struct in6pcb *inp6; 1444 1445 inp6 = (struct in6pcb *)inp; 1446 if (SCTP_IPV6_V6ONLY(inp6)) { 1447 /* 1448 * if IPV6_V6ONLY flag, ignore connections destined 1449 * to a v4 addr or v4-mapped addr 1450 */ 1451 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1452 error = EINVAL; 1453 goto out_now; 1454 } 1455 } 1456#endif /* INET6 */ 1457 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 1458 SCTP_PCB_FLAGS_UNBOUND) { 1459 /* Bind a ephemeral port */ 1460 error = sctp_inpcb_bind(so, NULL, NULL, p); 1461 if (error) { 1462 goto out_now; 1463 } 1464 } 1465 /* FIX ME: do we want to pass in a vrf on the connect call? */ 1466 vrf_id = inp->def_vrf_id; 1467 1468 /* We are GOOD to go */ 1469 stcb = sctp_aloc_assoc(inp, sa, 1, &error, 0, vrf_id, 1470 (struct thread *)p 1471 ); 1472 if (stcb == NULL) { 1473 /* Gak! no memory */ 1474 goto out_now; 1475 } 1476 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 1477 /* move to second address */ 1478 if (sa->sa_family == AF_INET) 1479 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in)); 1480 else 1481 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6)); 1482 1483 error = 0; 1484 added = sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error); 1485 /* Fill in the return id */ 1486 if (error) { 1487 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12); 1488 goto out_now; 1489 } 1490 a_id = (sctp_assoc_t *) optval; 1491 *a_id = sctp_get_associd(stcb); 1492 1493 /* initialize authentication parameters for the assoc */ 1494 sctp_initialize_auth_params(inp, stcb); 1495 1496 if (delay) { 1497 /* doing delayed connection */ 1498 stcb->asoc.delayed_connection = 1; 1499 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination); 1500 } else { 1501 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 1502 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 1503 } 1504 SCTP_TCB_UNLOCK(stcb); 1505 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 1506 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 1507 /* Set the connected flag so we can queue data */ 1508 soisconnecting(so); 1509 } 1510out_now: 1511 if (creat_lock_on) { 1512 SCTP_ASOC_CREATE_UNLOCK(inp); 1513 } 1514 SCTP_INP_DECR_REF(inp); 1515 return error; 1516} 1517 1518#define SCTP_FIND_STCB(inp, stcb, assoc_id) { \ 1519 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\ 1520 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \ 1521 SCTP_INP_RLOCK(inp); \ 1522 stcb = LIST_FIRST(&inp->sctp_asoc_list); \ 1523 if (stcb) { \ 1524 SCTP_TCB_LOCK(stcb); \ 1525 } \ 1526 SCTP_INP_RUNLOCK(inp); \ 1527 } else if (assoc_id != 0) { \ 1528 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \ 1529 if (stcb == NULL) { \ 1530 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \ 1531 error = ENOENT; \ 1532 break; \ 1533 } \ 1534 } else { \ 1535 stcb = NULL; \ 1536 } \ 1537 } 1538 1539 1540#define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\ 1541 if (size < sizeof(type)) { \ 1542 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \ 1543 error = EINVAL; \ 1544 break; \ 1545 } else { \ 1546 destp = (type *)srcp; \ 1547 } \ 1548 } 1549 1550static int 1551sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize, 1552 void *p) 1553{ 1554 struct sctp_inpcb *inp = NULL; 1555 int error, val = 0; 1556 struct sctp_tcb *stcb = NULL; 1557 1558 if (optval == NULL) { 1559 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1560 return (EINVAL); 1561 } 1562 inp = (struct sctp_inpcb *)so->so_pcb; 1563 if (inp == 0) { 1564 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1565 return EINVAL; 1566 } 1567 error = 0; 1568 1569 switch (optname) { 1570 case SCTP_NODELAY: 1571 case SCTP_AUTOCLOSE: 1572 case SCTP_EXPLICIT_EOR: 1573 case SCTP_AUTO_ASCONF: 1574 case SCTP_DISABLE_FRAGMENTS: 1575 case SCTP_I_WANT_MAPPED_V4_ADDR: 1576 case SCTP_USE_EXT_RCVINFO: 1577 SCTP_INP_RLOCK(inp); 1578 switch (optname) { 1579 case SCTP_DISABLE_FRAGMENTS: 1580 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT); 1581 break; 1582 case SCTP_I_WANT_MAPPED_V4_ADDR: 1583 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4); 1584 break; 1585 case SCTP_AUTO_ASCONF: 1586 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1587 /* only valid for bound all sockets */ 1588 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF); 1589 } else { 1590 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1591 error = EINVAL; 1592 goto flags_out; 1593 } 1594 break; 1595 case SCTP_EXPLICIT_EOR: 1596 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR); 1597 break; 1598 case SCTP_NODELAY: 1599 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY); 1600 break; 1601 case SCTP_USE_EXT_RCVINFO: 1602 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO); 1603 break; 1604 case SCTP_AUTOCLOSE: 1605 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE)) 1606 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time); 1607 else 1608 val = 0; 1609 break; 1610 1611 default: 1612 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 1613 error = ENOPROTOOPT; 1614 } /* end switch (sopt->sopt_name) */ 1615 if (optname != SCTP_AUTOCLOSE) { 1616 /* make it an "on/off" value */ 1617 val = (val != 0); 1618 } 1619 if (*optsize < sizeof(val)) { 1620 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1621 error = EINVAL; 1622 } 1623flags_out: 1624 SCTP_INP_RUNLOCK(inp); 1625 if (error == 0) { 1626 /* return the option value */ 1627 *(int *)optval = val; 1628 *optsize = sizeof(val); 1629 } 1630 break; 1631 case SCTP_GET_PACKET_LOG: 1632 { 1633#ifdef SCTP_PACKET_LOGGING 1634 uint8_t *target; 1635 int ret; 1636 1637 SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize); 1638 ret = sctp_copy_out_packet_log(target, (int)*optsize); 1639 *optsize = ret; 1640#else 1641 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1642 error = EOPNOTSUPP; 1643#endif 1644 break; 1645 } 1646 case SCTP_PARTIAL_DELIVERY_POINT: 1647 { 1648 uint32_t *value; 1649 1650 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1651 *value = inp->partial_delivery_point; 1652 *optsize = sizeof(uint32_t); 1653 } 1654 break; 1655 case SCTP_FRAGMENT_INTERLEAVE: 1656 { 1657 uint32_t *value; 1658 1659 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1660 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) { 1661 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) { 1662 *value = SCTP_FRAG_LEVEL_2; 1663 } else { 1664 *value = SCTP_FRAG_LEVEL_1; 1665 } 1666 } else { 1667 *value = SCTP_FRAG_LEVEL_0; 1668 } 1669 *optsize = sizeof(uint32_t); 1670 } 1671 break; 1672 case SCTP_CMT_ON_OFF: 1673 { 1674 struct sctp_assoc_value *av; 1675 1676 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1677 if (sctp_cmt_on_off) { 1678 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1679 if (stcb) { 1680 av->assoc_value = stcb->asoc.sctp_cmt_on_off; 1681 SCTP_TCB_UNLOCK(stcb); 1682 1683 } else { 1684 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1685 error = ENOTCONN; 1686 } 1687 } else { 1688 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 1689 error = ENOPROTOOPT; 1690 } 1691 *optsize = sizeof(*av); 1692 } 1693 break; 1694 /* JRS - Get socket option for pluggable congestion control */ 1695 case SCTP_PLUGGABLE_CC: 1696 { 1697 struct sctp_assoc_value *av; 1698 1699 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1700 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1701 if (stcb) { 1702 av->assoc_value = stcb->asoc.congestion_control_module; 1703 SCTP_TCB_UNLOCK(stcb); 1704 } else { 1705 av->assoc_value = inp->sctp_ep.sctp_default_cc_module; 1706 } 1707 *optsize = sizeof(*av); 1708 } 1709 break; 1710 case SCTP_GET_ADDR_LEN: 1711 { 1712 struct sctp_assoc_value *av; 1713 1714 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1715 error = EINVAL; 1716#ifdef INET 1717 if (av->assoc_value == AF_INET) { 1718 av->assoc_value = sizeof(struct sockaddr_in); 1719 error = 0; 1720 } 1721#endif 1722#ifdef INET6 1723 if (av->assoc_value == AF_INET6) { 1724 av->assoc_value = sizeof(struct sockaddr_in6); 1725 error = 0; 1726 } 1727#endif 1728 if (error) { 1729 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1730 } 1731 *optsize = sizeof(*av); 1732 } 1733 break; 1734 case SCTP_GET_ASSOC_NUMBER: 1735 { 1736 uint32_t *value, cnt; 1737 1738 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1739 cnt = 0; 1740 SCTP_INP_RLOCK(inp); 1741 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1742 cnt++; 1743 } 1744 SCTP_INP_RUNLOCK(inp); 1745 *value = cnt; 1746 *optsize = sizeof(uint32_t); 1747 } 1748 break; 1749 1750 case SCTP_GET_ASSOC_ID_LIST: 1751 { 1752 struct sctp_assoc_ids *ids; 1753 unsigned int at, limit; 1754 1755 SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize); 1756 at = 0; 1757 limit = *optsize / sizeof(sctp_assoc_t); 1758 SCTP_INP_RLOCK(inp); 1759 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1760 if (at < limit) { 1761 ids->gaids_assoc_id[at++] = sctp_get_associd(stcb); 1762 } else { 1763 error = EINVAL; 1764 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1765 break; 1766 } 1767 } 1768 SCTP_INP_RUNLOCK(inp); 1769 *optsize = at * sizeof(sctp_assoc_t); 1770 } 1771 break; 1772 case SCTP_CONTEXT: 1773 { 1774 struct sctp_assoc_value *av; 1775 1776 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1777 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1778 1779 if (stcb) { 1780 av->assoc_value = stcb->asoc.context; 1781 SCTP_TCB_UNLOCK(stcb); 1782 } else { 1783 SCTP_INP_RLOCK(inp); 1784 av->assoc_value = inp->sctp_context; 1785 SCTP_INP_RUNLOCK(inp); 1786 } 1787 *optsize = sizeof(*av); 1788 } 1789 break; 1790 case SCTP_VRF_ID: 1791 { 1792 uint32_t *default_vrfid; 1793 1794 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize); 1795 *default_vrfid = inp->def_vrf_id; 1796 break; 1797 } 1798 case SCTP_GET_ASOC_VRF: 1799 { 1800 struct sctp_assoc_value *id; 1801 1802 SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize); 1803 SCTP_FIND_STCB(inp, stcb, id->assoc_id); 1804 if (stcb == NULL) { 1805 error = EINVAL; 1806 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1807 break; 1808 } 1809 id->assoc_value = stcb->asoc.vrf_id; 1810 break; 1811 } 1812 case SCTP_GET_VRF_IDS: 1813 { 1814 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1815 error = EOPNOTSUPP; 1816 break; 1817 } 1818 case SCTP_GET_NONCE_VALUES: 1819 { 1820 struct sctp_get_nonce_values *gnv; 1821 1822 SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize); 1823 SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id); 1824 1825 if (stcb) { 1826 gnv->gn_peers_tag = stcb->asoc.peer_vtag; 1827 gnv->gn_local_tag = stcb->asoc.my_vtag; 1828 SCTP_TCB_UNLOCK(stcb); 1829 } else { 1830 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1831 error = ENOTCONN; 1832 } 1833 *optsize = sizeof(*gnv); 1834 } 1835 break; 1836 case SCTP_DELAYED_SACK: 1837 { 1838 struct sctp_sack_info *sack; 1839 1840 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize); 1841 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 1842 if (stcb) { 1843 sack->sack_delay = stcb->asoc.delayed_ack; 1844 sack->sack_freq = stcb->asoc.sack_freq; 1845 SCTP_TCB_UNLOCK(stcb); 1846 } else { 1847 SCTP_INP_RLOCK(inp); 1848 sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]); 1849 sack->sack_freq = inp->sctp_ep.sctp_sack_freq; 1850 SCTP_INP_RUNLOCK(inp); 1851 } 1852 *optsize = sizeof(*sack); 1853 } 1854 break; 1855 1856 case SCTP_GET_SNDBUF_USE: 1857 { 1858 struct sctp_sockstat *ss; 1859 1860 SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize); 1861 SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id); 1862 1863 if (stcb) { 1864 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size; 1865 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue + 1866 stcb->asoc.size_on_all_streams); 1867 SCTP_TCB_UNLOCK(stcb); 1868 } else { 1869 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 1870 error = ENOTCONN; 1871 } 1872 *optsize = sizeof(struct sctp_sockstat); 1873 } 1874 break; 1875 case SCTP_MAX_BURST: 1876 { 1877 uint8_t *value; 1878 1879 SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize); 1880 1881 SCTP_INP_RLOCK(inp); 1882 *value = inp->sctp_ep.max_burst; 1883 SCTP_INP_RUNLOCK(inp); 1884 *optsize = sizeof(uint8_t); 1885 } 1886 break; 1887 case SCTP_MAXSEG: 1888 { 1889 struct sctp_assoc_value *av; 1890 int ovh; 1891 1892 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1893 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1894 1895 if (stcb) { 1896 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc); 1897 SCTP_TCB_UNLOCK(stcb); 1898 } else { 1899 SCTP_INP_RLOCK(inp); 1900 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1901 ovh = SCTP_MED_OVERHEAD; 1902 } else { 1903 ovh = SCTP_MED_V4_OVERHEAD; 1904 } 1905 if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT) 1906 av->assoc_value = 0; 1907 else 1908 av->assoc_value = inp->sctp_frag_point - ovh; 1909 SCTP_INP_RUNLOCK(inp); 1910 } 1911 *optsize = sizeof(struct sctp_assoc_value); 1912 } 1913 break; 1914 case SCTP_GET_STAT_LOG: 1915 error = sctp_fill_stat_log(optval, optsize); 1916 break; 1917 case SCTP_EVENTS: 1918 { 1919 struct sctp_event_subscribe *events; 1920 1921 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize); 1922 memset(events, 0, sizeof(*events)); 1923 SCTP_INP_RLOCK(inp); 1924 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT)) 1925 events->sctp_data_io_event = 1; 1926 1927 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT)) 1928 events->sctp_association_event = 1; 1929 1930 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT)) 1931 events->sctp_address_event = 1; 1932 1933 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT)) 1934 events->sctp_send_failure_event = 1; 1935 1936 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR)) 1937 events->sctp_peer_error_event = 1; 1938 1939 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT)) 1940 events->sctp_shutdown_event = 1; 1941 1942 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT)) 1943 events->sctp_partial_delivery_event = 1; 1944 1945 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT)) 1946 events->sctp_adaptation_layer_event = 1; 1947 1948 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT)) 1949 events->sctp_authentication_event = 1; 1950 1951 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT)) 1952 events->sctp_stream_reset_events = 1; 1953 SCTP_INP_RUNLOCK(inp); 1954 *optsize = sizeof(struct sctp_event_subscribe); 1955 } 1956 break; 1957 1958 case SCTP_ADAPTATION_LAYER: 1959 { 1960 uint32_t *value; 1961 1962 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1963 1964 SCTP_INP_RLOCK(inp); 1965 *value = inp->sctp_ep.adaptation_layer_indicator; 1966 SCTP_INP_RUNLOCK(inp); 1967 *optsize = sizeof(uint32_t); 1968 } 1969 break; 1970 case SCTP_SET_INITIAL_DBG_SEQ: 1971 { 1972 uint32_t *value; 1973 1974 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1975 SCTP_INP_RLOCK(inp); 1976 *value = inp->sctp_ep.initial_sequence_debug; 1977 SCTP_INP_RUNLOCK(inp); 1978 *optsize = sizeof(uint32_t); 1979 } 1980 break; 1981 case SCTP_GET_LOCAL_ADDR_SIZE: 1982 { 1983 uint32_t *value; 1984 1985 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1986 SCTP_INP_RLOCK(inp); 1987 *value = sctp_count_max_addresses(inp); 1988 SCTP_INP_RUNLOCK(inp); 1989 *optsize = sizeof(uint32_t); 1990 } 1991 break; 1992 case SCTP_GET_REMOTE_ADDR_SIZE: 1993 { 1994 uint32_t *value; 1995 size_t size; 1996 struct sctp_nets *net; 1997 1998 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1999 /* FIXME MT: change to sctp_assoc_value? */ 2000 SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value); 2001 2002 if (stcb) { 2003 size = 0; 2004 /* Count the sizes */ 2005 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2006 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) || 2007 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 2008 size += sizeof(struct sockaddr_in6); 2009 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 2010 size += sizeof(struct sockaddr_in); 2011 } else { 2012 /* huh */ 2013 break; 2014 } 2015 } 2016 SCTP_TCB_UNLOCK(stcb); 2017 *value = (uint32_t) size; 2018 } else { 2019 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2020 error = ENOTCONN; 2021 } 2022 *optsize = sizeof(uint32_t); 2023 } 2024 break; 2025 case SCTP_GET_PEER_ADDRESSES: 2026 /* 2027 * Get the address information, an array is passed in to 2028 * fill up we pack it. 2029 */ 2030 { 2031 size_t cpsz, left; 2032 struct sockaddr_storage *sas; 2033 struct sctp_nets *net; 2034 struct sctp_getaddresses *saddr; 2035 2036 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2037 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2038 2039 if (stcb) { 2040 left = (*optsize) - sizeof(struct sctp_getaddresses); 2041 *optsize = sizeof(struct sctp_getaddresses); 2042 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2043 2044 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2045 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) || 2046 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { 2047 cpsz = sizeof(struct sockaddr_in6); 2048 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { 2049 cpsz = sizeof(struct sockaddr_in); 2050 } else { 2051 /* huh */ 2052 break; 2053 } 2054 if (left < cpsz) { 2055 /* not enough room. */ 2056 break; 2057 } 2058#ifdef INET6 2059 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) && 2060 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) { 2061 /* Must map the address */ 2062 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr, 2063 (struct sockaddr_in6 *)sas); 2064 } else { 2065#endif 2066 memcpy(sas, &net->ro._l_addr, cpsz); 2067#ifdef INET6 2068 } 2069#endif 2070 ((struct sockaddr_in *)sas)->sin_port = stcb->rport; 2071 2072 sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz); 2073 left -= cpsz; 2074 *optsize += cpsz; 2075 } 2076 SCTP_TCB_UNLOCK(stcb); 2077 } else { 2078 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2079 error = ENOENT; 2080 } 2081 } 2082 break; 2083 case SCTP_GET_LOCAL_ADDRESSES: 2084 { 2085 size_t limit, actual; 2086 struct sockaddr_storage *sas; 2087 struct sctp_getaddresses *saddr; 2088 2089 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2090 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2091 2092 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2093 limit = *optsize - sizeof(sctp_assoc_t); 2094 actual = sctp_fill_up_addresses(inp, stcb, limit, sas); 2095 if (stcb) { 2096 SCTP_TCB_UNLOCK(stcb); 2097 } 2098 *optsize = sizeof(struct sockaddr_storage) + actual; 2099 } 2100 break; 2101 case SCTP_PEER_ADDR_PARAMS: 2102 { 2103 struct sctp_paddrparams *paddrp; 2104 struct sctp_nets *net; 2105 2106 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize); 2107 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 2108 2109 net = NULL; 2110 if (stcb) { 2111 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 2112 } else { 2113 /* 2114 * We increment here since 2115 * sctp_findassociation_ep_addr() wil do a 2116 * decrement if it finds the stcb as long as 2117 * the locked tcb (last argument) is NOT a 2118 * TCB.. aka NULL. 2119 */ 2120 SCTP_INP_INCR_REF(inp); 2121 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL); 2122 if (stcb == NULL) { 2123 SCTP_INP_DECR_REF(inp); 2124 } 2125 } 2126 if (stcb && (net == NULL)) { 2127 struct sockaddr *sa; 2128 2129 sa = (struct sockaddr *)&paddrp->spp_address; 2130 if (sa->sa_family == AF_INET) { 2131 struct sockaddr_in *sin; 2132 2133 sin = (struct sockaddr_in *)sa; 2134 if (sin->sin_addr.s_addr) { 2135 error = EINVAL; 2136 SCTP_TCB_UNLOCK(stcb); 2137 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2138 break; 2139 } 2140 } else if (sa->sa_family == AF_INET6) { 2141 struct sockaddr_in6 *sin6; 2142 2143 sin6 = (struct sockaddr_in6 *)sa; 2144 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 2145 error = EINVAL; 2146 SCTP_TCB_UNLOCK(stcb); 2147 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2148 break; 2149 } 2150 } else { 2151 error = EAFNOSUPPORT; 2152 SCTP_TCB_UNLOCK(stcb); 2153 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2154 break; 2155 } 2156 } 2157 if (stcb) { 2158 /* Applys to the specific association */ 2159 paddrp->spp_flags = 0; 2160 if (net) { 2161 int ovh; 2162 2163 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2164 ovh = SCTP_MED_OVERHEAD; 2165 } else { 2166 ovh = SCTP_MED_V4_OVERHEAD; 2167 } 2168 2169 2170 paddrp->spp_pathmaxrxt = net->failure_threshold; 2171 paddrp->spp_pathmtu = net->mtu - ovh; 2172 /* get flags for HB */ 2173 if (net->dest_state & SCTP_ADDR_NOHB) 2174 paddrp->spp_flags |= SPP_HB_DISABLE; 2175 else 2176 paddrp->spp_flags |= SPP_HB_ENABLE; 2177 /* get flags for PMTU */ 2178 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2179 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2180 } else { 2181 paddrp->spp_flags |= SPP_PMTUD_DISABLE; 2182 } 2183#ifdef INET 2184 if (net->ro._l_addr.sin.sin_family == AF_INET) { 2185 paddrp->spp_ipv4_tos = net->tos_flowlabel & 0x000000fc; 2186 paddrp->spp_flags |= SPP_IPV4_TOS; 2187 } 2188#endif 2189#ifdef INET6 2190 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 2191 paddrp->spp_ipv6_flowlabel = net->tos_flowlabel; 2192 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2193 } 2194#endif 2195 } else { 2196 /* 2197 * No destination so return default 2198 * value 2199 */ 2200 int cnt = 0; 2201 2202 paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure; 2203 paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc); 2204#ifdef INET 2205 paddrp->spp_ipv4_tos = stcb->asoc.default_tos & 0x000000fc; 2206 paddrp->spp_flags |= SPP_IPV4_TOS; 2207#endif 2208#ifdef INET6 2209 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel; 2210 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2211#endif 2212 /* default settings should be these */ 2213 if (stcb->asoc.hb_is_disabled == 0) { 2214 paddrp->spp_flags |= SPP_HB_ENABLE; 2215 } else { 2216 paddrp->spp_flags |= SPP_HB_DISABLE; 2217 } 2218 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2219 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2220 cnt++; 2221 } 2222 } 2223 if (cnt) { 2224 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2225 } 2226 } 2227 paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay; 2228 paddrp->spp_assoc_id = sctp_get_associd(stcb); 2229 SCTP_TCB_UNLOCK(stcb); 2230 } else { 2231 /* Use endpoint defaults */ 2232 SCTP_INP_RLOCK(inp); 2233 paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure; 2234 paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]); 2235 paddrp->spp_assoc_id = (sctp_assoc_t) 0; 2236 /* get inp's default */ 2237#ifdef INET 2238 paddrp->spp_ipv4_tos = inp->ip_inp.inp.inp_ip_tos; 2239 paddrp->spp_flags |= SPP_IPV4_TOS; 2240#endif 2241#ifdef INET6 2242 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2243 paddrp->spp_ipv6_flowlabel = ((struct in6pcb *)inp)->in6p_flowinfo; 2244 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2245 } 2246#endif 2247 /* can't return this */ 2248 paddrp->spp_pathmtu = 0; 2249 2250 /* default behavior, no stcb */ 2251 paddrp->spp_flags = SPP_PMTUD_ENABLE; 2252 2253 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) { 2254 paddrp->spp_flags |= SPP_HB_ENABLE; 2255 } else { 2256 paddrp->spp_flags |= SPP_HB_DISABLE; 2257 } 2258 SCTP_INP_RUNLOCK(inp); 2259 } 2260 *optsize = sizeof(struct sctp_paddrparams); 2261 } 2262 break; 2263 case SCTP_GET_PEER_ADDR_INFO: 2264 { 2265 struct sctp_paddrinfo *paddri; 2266 struct sctp_nets *net; 2267 2268 SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize); 2269 SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id); 2270 2271 net = NULL; 2272 if (stcb) { 2273 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address); 2274 } else { 2275 /* 2276 * We increment here since 2277 * sctp_findassociation_ep_addr() wil do a 2278 * decrement if it finds the stcb as long as 2279 * the locked tcb (last argument) is NOT a 2280 * TCB.. aka NULL. 2281 */ 2282 SCTP_INP_INCR_REF(inp); 2283 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL); 2284 if (stcb == NULL) { 2285 SCTP_INP_DECR_REF(inp); 2286 } 2287 } 2288 2289 if ((stcb) && (net)) { 2290 paddri->spinfo_state = net->dest_state & (SCTP_REACHABLE_MASK | SCTP_ADDR_NOHB); 2291 paddri->spinfo_cwnd = net->cwnd; 2292 paddri->spinfo_srtt = ((net->lastsa >> 2) + net->lastsv) >> 1; 2293 paddri->spinfo_rto = net->RTO; 2294 paddri->spinfo_assoc_id = sctp_get_associd(stcb); 2295 SCTP_TCB_UNLOCK(stcb); 2296 } else { 2297 if (stcb) { 2298 SCTP_TCB_UNLOCK(stcb); 2299 } 2300 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2301 error = ENOENT; 2302 } 2303 *optsize = sizeof(struct sctp_paddrinfo); 2304 } 2305 break; 2306 case SCTP_PCB_STATUS: 2307 { 2308 struct sctp_pcbinfo *spcb; 2309 2310 SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize); 2311 sctp_fill_pcbinfo(spcb); 2312 *optsize = sizeof(struct sctp_pcbinfo); 2313 } 2314 break; 2315 2316 case SCTP_STATUS: 2317 { 2318 struct sctp_nets *net; 2319 struct sctp_status *sstat; 2320 2321 SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize); 2322 SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id); 2323 2324 if (stcb == NULL) { 2325 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2326 error = EINVAL; 2327 break; 2328 } 2329 /* 2330 * I think passing the state is fine since 2331 * sctp_constants.h will be available to the user 2332 * land. 2333 */ 2334 sstat->sstat_state = stcb->asoc.state; 2335 sstat->sstat_assoc_id = sctp_get_associd(stcb); 2336 sstat->sstat_rwnd = stcb->asoc.peers_rwnd; 2337 sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt; 2338 /* 2339 * We can't include chunks that have been passed to 2340 * the socket layer. Only things in queue. 2341 */ 2342 sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue + 2343 stcb->asoc.cnt_on_all_streams); 2344 2345 2346 sstat->sstat_instrms = stcb->asoc.streamincnt; 2347 sstat->sstat_outstrms = stcb->asoc.streamoutcnt; 2348 sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc); 2349 memcpy(&sstat->sstat_primary.spinfo_address, 2350 &stcb->asoc.primary_destination->ro._l_addr, 2351 ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len); 2352 net = stcb->asoc.primary_destination; 2353 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport; 2354 /* 2355 * Again the user can get info from sctp_constants.h 2356 * for what the state of the network is. 2357 */ 2358 sstat->sstat_primary.spinfo_state = net->dest_state & SCTP_REACHABLE_MASK; 2359 sstat->sstat_primary.spinfo_cwnd = net->cwnd; 2360 sstat->sstat_primary.spinfo_srtt = net->lastsa; 2361 sstat->sstat_primary.spinfo_rto = net->RTO; 2362 sstat->sstat_primary.spinfo_mtu = net->mtu; 2363 sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb); 2364 SCTP_TCB_UNLOCK(stcb); 2365 *optsize = sizeof(*sstat); 2366 } 2367 break; 2368 case SCTP_RTOINFO: 2369 { 2370 struct sctp_rtoinfo *srto; 2371 2372 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize); 2373 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 2374 2375 if (stcb) { 2376 srto->srto_initial = stcb->asoc.initial_rto; 2377 srto->srto_max = stcb->asoc.maxrto; 2378 srto->srto_min = stcb->asoc.minrto; 2379 SCTP_TCB_UNLOCK(stcb); 2380 } else { 2381 SCTP_INP_RLOCK(inp); 2382 srto->srto_initial = inp->sctp_ep.initial_rto; 2383 srto->srto_max = inp->sctp_ep.sctp_maxrto; 2384 srto->srto_min = inp->sctp_ep.sctp_minrto; 2385 SCTP_INP_RUNLOCK(inp); 2386 } 2387 *optsize = sizeof(*srto); 2388 } 2389 break; 2390 case SCTP_ASSOCINFO: 2391 { 2392 struct sctp_assocparams *sasoc; 2393 uint32_t oldval; 2394 2395 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize); 2396 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 2397 2398 if (stcb) { 2399 oldval = sasoc->sasoc_cookie_life; 2400 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life); 2401 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times; 2402 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 2403 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd; 2404 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd; 2405 SCTP_TCB_UNLOCK(stcb); 2406 } else { 2407 SCTP_INP_RLOCK(inp); 2408 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life); 2409 sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times; 2410 sasoc->sasoc_number_peer_destinations = 0; 2411 sasoc->sasoc_peer_rwnd = 0; 2412 sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv); 2413 SCTP_INP_RUNLOCK(inp); 2414 } 2415 *optsize = sizeof(*sasoc); 2416 } 2417 break; 2418 case SCTP_DEFAULT_SEND_PARAM: 2419 { 2420 struct sctp_sndrcvinfo *s_info; 2421 2422 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize); 2423 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 2424 2425 if (stcb) { 2426 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send)); 2427 SCTP_TCB_UNLOCK(stcb); 2428 } else { 2429 SCTP_INP_RLOCK(inp); 2430 memcpy(s_info, &inp->def_send, sizeof(inp->def_send)); 2431 SCTP_INP_RUNLOCK(inp); 2432 } 2433 *optsize = sizeof(*s_info); 2434 } 2435 break; 2436 case SCTP_INITMSG: 2437 { 2438 struct sctp_initmsg *sinit; 2439 2440 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize); 2441 SCTP_INP_RLOCK(inp); 2442 sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count; 2443 sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome; 2444 sinit->sinit_max_attempts = inp->sctp_ep.max_init_times; 2445 sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max; 2446 SCTP_INP_RUNLOCK(inp); 2447 *optsize = sizeof(*sinit); 2448 } 2449 break; 2450 case SCTP_PRIMARY_ADDR: 2451 /* we allow a "get" operation on this */ 2452 { 2453 struct sctp_setprim *ssp; 2454 2455 SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize); 2456 SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id); 2457 2458 if (stcb) { 2459 /* simply copy out the sockaddr_storage... */ 2460 int len; 2461 2462 len = *optsize; 2463 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len) 2464 len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len; 2465 2466 memcpy(&ssp->ssp_addr, 2467 &stcb->asoc.primary_destination->ro._l_addr, 2468 len); 2469 SCTP_TCB_UNLOCK(stcb); 2470 } else { 2471 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2472 error = EINVAL; 2473 } 2474 *optsize = sizeof(*ssp); 2475 } 2476 break; 2477 2478 case SCTP_HMAC_IDENT: 2479 { 2480 struct sctp_hmacalgo *shmac; 2481 sctp_hmaclist_t *hmaclist; 2482 uint32_t size; 2483 int i; 2484 2485 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize); 2486 2487 SCTP_INP_RLOCK(inp); 2488 hmaclist = inp->sctp_ep.local_hmacs; 2489 if (hmaclist == NULL) { 2490 /* no HMACs to return */ 2491 *optsize = sizeof(*shmac); 2492 SCTP_INP_RUNLOCK(inp); 2493 break; 2494 } 2495 /* is there room for all of the hmac ids? */ 2496 size = sizeof(*shmac) + (hmaclist->num_algo * 2497 sizeof(shmac->shmac_idents[0])); 2498 if ((size_t)(*optsize) < size) { 2499 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2500 error = EINVAL; 2501 SCTP_INP_RUNLOCK(inp); 2502 break; 2503 } 2504 /* copy in the list */ 2505 for (i = 0; i < hmaclist->num_algo; i++) 2506 shmac->shmac_idents[i] = hmaclist->hmac[i]; 2507 SCTP_INP_RUNLOCK(inp); 2508 *optsize = size; 2509 break; 2510 } 2511 case SCTP_AUTH_ACTIVE_KEY: 2512 { 2513 struct sctp_authkeyid *scact; 2514 2515 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize); 2516 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 2517 2518 if (stcb) { 2519 /* get the active key on the assoc */ 2520 scact->scact_keynumber = stcb->asoc.authinfo.assoc_keyid; 2521 SCTP_TCB_UNLOCK(stcb); 2522 } else { 2523 /* get the endpoint active key */ 2524 SCTP_INP_RLOCK(inp); 2525 scact->scact_keynumber = inp->sctp_ep.default_keyid; 2526 SCTP_INP_RUNLOCK(inp); 2527 } 2528 *optsize = sizeof(*scact); 2529 break; 2530 } 2531 case SCTP_LOCAL_AUTH_CHUNKS: 2532 { 2533 struct sctp_authchunks *sac; 2534 sctp_auth_chklist_t *chklist = NULL; 2535 size_t size = 0; 2536 2537 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2538 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2539 2540 if (stcb) { 2541 /* get off the assoc */ 2542 chklist = stcb->asoc.local_auth_chunks; 2543 /* is there enough space? */ 2544 size = sctp_auth_get_chklist_size(chklist); 2545 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2546 error = EINVAL; 2547 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2548 } else { 2549 /* copy in the chunks */ 2550 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2551 } 2552 SCTP_TCB_UNLOCK(stcb); 2553 } else { 2554 /* get off the endpoint */ 2555 SCTP_INP_RLOCK(inp); 2556 chklist = inp->sctp_ep.local_auth_chunks; 2557 /* is there enough space? */ 2558 size = sctp_auth_get_chklist_size(chklist); 2559 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2560 error = EINVAL; 2561 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2562 } else { 2563 /* copy in the chunks */ 2564 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2565 } 2566 SCTP_INP_RUNLOCK(inp); 2567 } 2568 *optsize = sizeof(struct sctp_authchunks) + size; 2569 break; 2570 } 2571 case SCTP_PEER_AUTH_CHUNKS: 2572 { 2573 struct sctp_authchunks *sac; 2574 sctp_auth_chklist_t *chklist = NULL; 2575 size_t size = 0; 2576 2577 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2578 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2579 2580 if (stcb) { 2581 /* get off the assoc */ 2582 chklist = stcb->asoc.peer_auth_chunks; 2583 /* is there enough space? */ 2584 size = sctp_auth_get_chklist_size(chklist); 2585 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2586 error = EINVAL; 2587 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2588 } else { 2589 /* copy in the chunks */ 2590 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2591 } 2592 SCTP_TCB_UNLOCK(stcb); 2593 } else { 2594 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2595 error = ENOENT; 2596 } 2597 *optsize = sizeof(struct sctp_authchunks) + size; 2598 break; 2599 } 2600 2601 2602 default: 2603 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 2604 error = ENOPROTOOPT; 2605 *optsize = 0; 2606 break; 2607 } /* end switch (sopt->sopt_name) */ 2608 return (error); 2609} 2610 2611static int 2612sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize, 2613 void *p) 2614{ 2615 int error, set_opt; 2616 uint32_t *mopt; 2617 struct sctp_tcb *stcb = NULL; 2618 struct sctp_inpcb *inp = NULL; 2619 uint32_t vrf_id; 2620 2621 if (optval == NULL) { 2622 SCTP_PRINTF("optval is NULL\n"); 2623 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2624 return (EINVAL); 2625 } 2626 inp = (struct sctp_inpcb *)so->so_pcb; 2627 if (inp == 0) { 2628 SCTP_PRINTF("inp is NULL?\n"); 2629 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2630 return EINVAL; 2631 } 2632 vrf_id = inp->def_vrf_id; 2633 2634 error = 0; 2635 switch (optname) { 2636 case SCTP_NODELAY: 2637 case SCTP_AUTOCLOSE: 2638 case SCTP_AUTO_ASCONF: 2639 case SCTP_EXPLICIT_EOR: 2640 case SCTP_DISABLE_FRAGMENTS: 2641 case SCTP_USE_EXT_RCVINFO: 2642 case SCTP_I_WANT_MAPPED_V4_ADDR: 2643 /* copy in the option value */ 2644 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 2645 set_opt = 0; 2646 if (error) 2647 break; 2648 switch (optname) { 2649 case SCTP_DISABLE_FRAGMENTS: 2650 set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT; 2651 break; 2652 case SCTP_AUTO_ASCONF: 2653 /* 2654 * NOTE: we don't really support this flag 2655 */ 2656 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 2657 /* only valid for bound all sockets */ 2658 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF; 2659 } else { 2660 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2661 return (EINVAL); 2662 } 2663 break; 2664 case SCTP_EXPLICIT_EOR: 2665 set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR; 2666 break; 2667 case SCTP_USE_EXT_RCVINFO: 2668 set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO; 2669 break; 2670 case SCTP_I_WANT_MAPPED_V4_ADDR: 2671 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2672 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4; 2673 } else { 2674 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2675 return (EINVAL); 2676 } 2677 break; 2678 case SCTP_NODELAY: 2679 set_opt = SCTP_PCB_FLAGS_NODELAY; 2680 break; 2681 case SCTP_AUTOCLOSE: 2682 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 2683 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 2684 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2685 return (EINVAL); 2686 } 2687 set_opt = SCTP_PCB_FLAGS_AUTOCLOSE; 2688 /* 2689 * The value is in ticks. Note this does not effect 2690 * old associations, only new ones. 2691 */ 2692 inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt); 2693 break; 2694 } 2695 SCTP_INP_WLOCK(inp); 2696 if (*mopt != 0) { 2697 sctp_feature_on(inp, set_opt); 2698 } else { 2699 sctp_feature_off(inp, set_opt); 2700 } 2701 SCTP_INP_WUNLOCK(inp); 2702 break; 2703 case SCTP_PARTIAL_DELIVERY_POINT: 2704 { 2705 uint32_t *value; 2706 2707 SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize); 2708 if (*value > SCTP_SB_LIMIT_RCV(so)) { 2709 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2710 error = EINVAL; 2711 break; 2712 } 2713 inp->partial_delivery_point = *value; 2714 } 2715 break; 2716 case SCTP_FRAGMENT_INTERLEAVE: 2717 /* not yet until we re-write sctp_recvmsg() */ 2718 { 2719 uint32_t *level; 2720 2721 SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize); 2722 if (*level == SCTP_FRAG_LEVEL_2) { 2723 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2724 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2725 } else if (*level == SCTP_FRAG_LEVEL_1) { 2726 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2727 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2728 } else if (*level == SCTP_FRAG_LEVEL_0) { 2729 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 2730 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 2731 2732 } else { 2733 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2734 error = EINVAL; 2735 } 2736 } 2737 break; 2738 case SCTP_CMT_ON_OFF: 2739 { 2740 struct sctp_assoc_value *av; 2741 2742 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2743 if (sctp_cmt_on_off) { 2744 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2745 if (stcb) { 2746 stcb->asoc.sctp_cmt_on_off = (uint8_t) av->assoc_value; 2747 SCTP_TCB_UNLOCK(stcb); 2748 } else { 2749 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2750 error = ENOTCONN; 2751 } 2752 } else { 2753 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 2754 error = ENOPROTOOPT; 2755 } 2756 } 2757 break; 2758 /* JRS - Set socket option for pluggable congestion control */ 2759 case SCTP_PLUGGABLE_CC: 2760 { 2761 struct sctp_assoc_value *av; 2762 2763 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2764 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2765 if (stcb) { 2766 switch (av->assoc_value) { 2767 /* 2768 * JRS - Standard TCP congestion 2769 * control 2770 */ 2771 case SCTP_CC_RFC2581: 2772 { 2773 stcb->asoc.congestion_control_module = SCTP_CC_RFC2581; 2774 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; 2775 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_cwnd_update_after_sack; 2776 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_cwnd_update_after_fr; 2777 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; 2778 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; 2779 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2780 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2781 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; 2782 SCTP_TCB_UNLOCK(stcb); 2783 break; 2784 } 2785 /* 2786 * JRS - High Speed TCP congestion 2787 * control (Floyd) 2788 */ 2789 case SCTP_CC_HSTCP: 2790 { 2791 stcb->asoc.congestion_control_module = SCTP_CC_HSTCP; 2792 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; 2793 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_hs_cwnd_update_after_sack; 2794 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_hs_cwnd_update_after_fr; 2795 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; 2796 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; 2797 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2798 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2799 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; 2800 SCTP_TCB_UNLOCK(stcb); 2801 break; 2802 } 2803 /* JRS - HTCP congestion control */ 2804 case SCTP_CC_HTCP: 2805 { 2806 stcb->asoc.congestion_control_module = SCTP_CC_HTCP; 2807 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_htcp_set_initial_cc_param; 2808 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_htcp_cwnd_update_after_sack; 2809 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_htcp_cwnd_update_after_fr; 2810 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_htcp_cwnd_update_after_timeout; 2811 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_htcp_cwnd_update_after_ecn_echo; 2812 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; 2813 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; 2814 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_htcp_cwnd_update_after_fr_timer; 2815 SCTP_TCB_UNLOCK(stcb); 2816 break; 2817 } 2818 /* 2819 * JRS - All other values are 2820 * invalid 2821 */ 2822 default: 2823 { 2824 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2825 error = EINVAL; 2826 SCTP_TCB_UNLOCK(stcb); 2827 break; 2828 } 2829 } 2830 } else { 2831 switch (av->assoc_value) { 2832 case SCTP_CC_RFC2581: 2833 case SCTP_CC_HSTCP: 2834 case SCTP_CC_HTCP: 2835 inp->sctp_ep.sctp_default_cc_module = av->assoc_value; 2836 break; 2837 default: 2838 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2839 error = EINVAL; 2840 break; 2841 }; 2842 } 2843 } 2844 break; 2845 case SCTP_CLR_STAT_LOG: 2846 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2847 error = EOPNOTSUPP; 2848 break; 2849 case SCTP_CONTEXT: 2850 { 2851 struct sctp_assoc_value *av; 2852 2853 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 2854 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2855 2856 if (stcb) { 2857 stcb->asoc.context = av->assoc_value; 2858 SCTP_TCB_UNLOCK(stcb); 2859 } else { 2860 SCTP_INP_WLOCK(inp); 2861 inp->sctp_context = av->assoc_value; 2862 SCTP_INP_WUNLOCK(inp); 2863 } 2864 } 2865 break; 2866 case SCTP_VRF_ID: 2867 { 2868 uint32_t *default_vrfid; 2869 2870 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize); 2871 if (*default_vrfid > SCTP_MAX_VRF_ID) { 2872 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2873 error = EINVAL; 2874 break; 2875 } 2876 inp->def_vrf_id = *default_vrfid; 2877 break; 2878 } 2879 case SCTP_DEL_VRF_ID: 2880 { 2881 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2882 error = EOPNOTSUPP; 2883 break; 2884 } 2885 case SCTP_ADD_VRF_ID: 2886 { 2887 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 2888 error = EOPNOTSUPP; 2889 break; 2890 } 2891 case SCTP_DELAYED_SACK: 2892 { 2893 struct sctp_sack_info *sack; 2894 2895 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize); 2896 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 2897 if (sack->sack_delay) { 2898 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) 2899 sack->sack_delay = SCTP_MAX_SACK_DELAY; 2900 } 2901 if (stcb) { 2902 if (sack->sack_delay) { 2903 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 2904 sack->sack_delay = TICKS_TO_MSEC(1); 2905 } 2906 stcb->asoc.delayed_ack = sack->sack_delay; 2907 } 2908 if (sack->sack_freq) { 2909 stcb->asoc.sack_freq = sack->sack_freq; 2910 } 2911 SCTP_TCB_UNLOCK(stcb); 2912 } else { 2913 SCTP_INP_WLOCK(inp); 2914 if (sack->sack_delay) { 2915 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 2916 sack->sack_delay = TICKS_TO_MSEC(1); 2917 } 2918 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay); 2919 } 2920 if (sack->sack_freq) { 2921 inp->sctp_ep.sctp_sack_freq = sack->sack_freq; 2922 } 2923 SCTP_INP_WUNLOCK(inp); 2924 } 2925 break; 2926 } 2927 case SCTP_AUTH_CHUNK: 2928 { 2929 struct sctp_authchunk *sauth; 2930 2931 SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize); 2932 2933 SCTP_INP_WLOCK(inp); 2934 if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) { 2935 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2936 error = EINVAL; 2937 } 2938 SCTP_INP_WUNLOCK(inp); 2939 break; 2940 } 2941 case SCTP_AUTH_KEY: 2942 { 2943 struct sctp_authkey *sca; 2944 struct sctp_keyhead *shared_keys; 2945 sctp_sharedkey_t *shared_key; 2946 sctp_key_t *key = NULL; 2947 size_t size; 2948 2949 SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize); 2950 SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id); 2951 size = optsize - sizeof(*sca); 2952 2953 if (stcb) { 2954 /* set it on the assoc */ 2955 shared_keys = &stcb->asoc.shared_keys; 2956 /* clear the cached keys for this key id */ 2957 sctp_clear_cachedkeys(stcb, sca->sca_keynumber); 2958 /* 2959 * create the new shared key and 2960 * insert/replace it 2961 */ 2962 if (size > 0) { 2963 key = sctp_set_key(sca->sca_key, (uint32_t) size); 2964 if (key == NULL) { 2965 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 2966 error = ENOMEM; 2967 SCTP_TCB_UNLOCK(stcb); 2968 break; 2969 } 2970 } 2971 shared_key = sctp_alloc_sharedkey(); 2972 if (shared_key == NULL) { 2973 sctp_free_key(key); 2974 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 2975 error = ENOMEM; 2976 SCTP_TCB_UNLOCK(stcb); 2977 break; 2978 } 2979 shared_key->key = key; 2980 shared_key->keyid = sca->sca_keynumber; 2981 sctp_insert_sharedkey(shared_keys, shared_key); 2982 SCTP_TCB_UNLOCK(stcb); 2983 } else { 2984 /* set it on the endpoint */ 2985 SCTP_INP_WLOCK(inp); 2986 shared_keys = &inp->sctp_ep.shared_keys; 2987 /* 2988 * clear the cached keys on all assocs for 2989 * this key id 2990 */ 2991 sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber); 2992 /* 2993 * create the new shared key and 2994 * insert/replace it 2995 */ 2996 if (size > 0) { 2997 key = sctp_set_key(sca->sca_key, (uint32_t) size); 2998 if (key == NULL) { 2999 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3000 error = ENOMEM; 3001 SCTP_INP_WUNLOCK(inp); 3002 break; 3003 } 3004 } 3005 shared_key = sctp_alloc_sharedkey(); 3006 if (shared_key == NULL) { 3007 sctp_free_key(key); 3008 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3009 error = ENOMEM; 3010 SCTP_INP_WUNLOCK(inp); 3011 break; 3012 } 3013 shared_key->key = key; 3014 shared_key->keyid = sca->sca_keynumber; 3015 sctp_insert_sharedkey(shared_keys, shared_key); 3016 SCTP_INP_WUNLOCK(inp); 3017 } 3018 break; 3019 } 3020 case SCTP_HMAC_IDENT: 3021 { 3022 struct sctp_hmacalgo *shmac; 3023 sctp_hmaclist_t *hmaclist; 3024 uint32_t hmacid; 3025 size_t size, i, found; 3026 3027 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize); 3028 size = (optsize - sizeof(*shmac)) / sizeof(shmac->shmac_idents[0]); 3029 hmaclist = sctp_alloc_hmaclist(size); 3030 if (hmaclist == NULL) { 3031 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3032 error = ENOMEM; 3033 break; 3034 } 3035 for (i = 0; i < size; i++) { 3036 hmacid = shmac->shmac_idents[i]; 3037 if (sctp_auth_add_hmacid(hmaclist, (uint16_t) hmacid)) { 3038 /* invalid HMACs were found */ ; 3039 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3040 error = EINVAL; 3041 sctp_free_hmaclist(hmaclist); 3042 goto sctp_set_hmac_done; 3043 } 3044 } 3045 found = 0; 3046 for (i = 0; i < hmaclist->num_algo; i++) { 3047 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) { 3048 /* already in list */ 3049 found = 1; 3050 } 3051 } 3052 if (!found) { 3053 sctp_free_hmaclist(hmaclist); 3054 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3055 error = EINVAL; 3056 break; 3057 } 3058 /* set it on the endpoint */ 3059 SCTP_INP_WLOCK(inp); 3060 if (inp->sctp_ep.local_hmacs) 3061 sctp_free_hmaclist(inp->sctp_ep.local_hmacs); 3062 inp->sctp_ep.local_hmacs = hmaclist; 3063 SCTP_INP_WUNLOCK(inp); 3064 sctp_set_hmac_done: 3065 break; 3066 } 3067 case SCTP_AUTH_ACTIVE_KEY: 3068 { 3069 struct sctp_authkeyid *scact; 3070 3071 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize); 3072 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 3073 3074 /* set the active key on the right place */ 3075 if (stcb) { 3076 /* set the active key on the assoc */ 3077 if (sctp_auth_setactivekey(stcb, scact->scact_keynumber)) { 3078 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3079 error = EINVAL; 3080 } 3081 SCTP_TCB_UNLOCK(stcb); 3082 } else { 3083 /* set the active key on the endpoint */ 3084 SCTP_INP_WLOCK(inp); 3085 if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) { 3086 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3087 error = EINVAL; 3088 } 3089 SCTP_INP_WUNLOCK(inp); 3090 } 3091 break; 3092 } 3093 case SCTP_AUTH_DELETE_KEY: 3094 { 3095 struct sctp_authkeyid *scdel; 3096 3097 SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize); 3098 SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id); 3099 3100 /* delete the key from the right place */ 3101 if (stcb) { 3102 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) { 3103 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3104 error = EINVAL; 3105 } 3106 SCTP_TCB_UNLOCK(stcb); 3107 } else { 3108 SCTP_INP_WLOCK(inp); 3109 if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) { 3110 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3111 error = EINVAL; 3112 } 3113 SCTP_INP_WUNLOCK(inp); 3114 } 3115 break; 3116 } 3117 3118 case SCTP_RESET_STREAMS: 3119 { 3120 struct sctp_stream_reset *strrst; 3121 uint8_t send_in = 0, send_tsn = 0, send_out = 0; 3122 int i; 3123 3124 SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize); 3125 SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id); 3126 3127 if (stcb == NULL) { 3128 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 3129 error = ENOENT; 3130 break; 3131 } 3132 if (stcb->asoc.peer_supports_strreset == 0) { 3133 /* 3134 * Peer does not support it, we return 3135 * protocol not supported since this is true 3136 * for this feature and this peer, not the 3137 * socket request in general. 3138 */ 3139 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT); 3140 error = EPROTONOSUPPORT; 3141 SCTP_TCB_UNLOCK(stcb); 3142 break; 3143 } 3144 if (stcb->asoc.stream_reset_outstanding) { 3145 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 3146 error = EALREADY; 3147 SCTP_TCB_UNLOCK(stcb); 3148 break; 3149 } 3150 if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) { 3151 send_in = 1; 3152 } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) { 3153 send_out = 1; 3154 } else if (strrst->strrst_flags == SCTP_RESET_BOTH) { 3155 send_in = 1; 3156 send_out = 1; 3157 } else if (strrst->strrst_flags == SCTP_RESET_TSN) { 3158 send_tsn = 1; 3159 } else { 3160 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3161 error = EINVAL; 3162 SCTP_TCB_UNLOCK(stcb); 3163 break; 3164 } 3165 for (i = 0; i < strrst->strrst_num_streams; i++) { 3166 if ((send_in) && 3167 3168 (strrst->strrst_list[i] > stcb->asoc.streamincnt)) { 3169 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3170 error = EINVAL; 3171 goto get_out; 3172 } 3173 if ((send_out) && 3174 (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) { 3175 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3176 error = EINVAL; 3177 goto get_out; 3178 } 3179 } 3180 if (error) { 3181 get_out: 3182 SCTP_TCB_UNLOCK(stcb); 3183 break; 3184 } 3185 error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams, 3186 strrst->strrst_list, 3187 send_out, (stcb->asoc.str_reset_seq_in - 3), 3188 send_in, send_tsn); 3189 3190 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED); 3191 SCTP_TCB_UNLOCK(stcb); 3192 } 3193 break; 3194 3195 case SCTP_CONNECT_X: 3196 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 3197 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3198 error = EINVAL; 3199 break; 3200 } 3201 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0); 3202 break; 3203 3204 case SCTP_CONNECT_X_DELAYED: 3205 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 3206 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3207 error = EINVAL; 3208 break; 3209 } 3210 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1); 3211 break; 3212 3213 case SCTP_CONNECT_X_COMPLETE: 3214 { 3215 struct sockaddr *sa; 3216 struct sctp_nets *net; 3217 3218 /* FIXME MT: check correct? */ 3219 SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize); 3220 3221 /* find tcb */ 3222 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 3223 SCTP_INP_RLOCK(inp); 3224 stcb = LIST_FIRST(&inp->sctp_asoc_list); 3225 if (stcb) { 3226 SCTP_TCB_LOCK(stcb); 3227 net = sctp_findnet(stcb, sa); 3228 } 3229 SCTP_INP_RUNLOCK(inp); 3230 } else { 3231 /* 3232 * We increment here since 3233 * sctp_findassociation_ep_addr() wil do a 3234 * decrement if it finds the stcb as long as 3235 * the locked tcb (last argument) is NOT a 3236 * TCB.. aka NULL. 3237 */ 3238 SCTP_INP_INCR_REF(inp); 3239 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL); 3240 if (stcb == NULL) { 3241 SCTP_INP_DECR_REF(inp); 3242 } 3243 } 3244 3245 if (stcb == NULL) { 3246 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 3247 error = ENOENT; 3248 break; 3249 } 3250 if (stcb->asoc.delayed_connection == 1) { 3251 stcb->asoc.delayed_connection = 0; 3252 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 3253 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb, 3254 stcb->asoc.primary_destination, 3255 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9); 3256 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 3257 } else { 3258 /* 3259 * already expired or did not use delayed 3260 * connectx 3261 */ 3262 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 3263 error = EALREADY; 3264 } 3265 SCTP_TCB_UNLOCK(stcb); 3266 } 3267 break; 3268 case SCTP_MAX_BURST: 3269 { 3270 uint8_t *burst; 3271 3272 SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize); 3273 3274 SCTP_INP_WLOCK(inp); 3275 if (*burst) { 3276 inp->sctp_ep.max_burst = *burst; 3277 } 3278 SCTP_INP_WUNLOCK(inp); 3279 } 3280 break; 3281 case SCTP_MAXSEG: 3282 { 3283 struct sctp_assoc_value *av; 3284 int ovh; 3285 3286 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3287 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3288 3289 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3290 ovh = SCTP_MED_OVERHEAD; 3291 } else { 3292 ovh = SCTP_MED_V4_OVERHEAD; 3293 } 3294 if (stcb) { 3295 if (av->assoc_value) { 3296 stcb->asoc.sctp_frag_point = (av->assoc_value + ovh); 3297 } else { 3298 stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3299 } 3300 SCTP_TCB_UNLOCK(stcb); 3301 } else { 3302 SCTP_INP_WLOCK(inp); 3303 /* 3304 * FIXME MT: I think this is not in tune 3305 * with the API ID 3306 */ 3307 if (av->assoc_value) { 3308 inp->sctp_frag_point = (av->assoc_value + ovh); 3309 } else { 3310 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 3311 } 3312 SCTP_INP_WUNLOCK(inp); 3313 } 3314 } 3315 break; 3316 case SCTP_EVENTS: 3317 { 3318 struct sctp_event_subscribe *events; 3319 3320 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize); 3321 3322 SCTP_INP_WLOCK(inp); 3323 if (events->sctp_data_io_event) { 3324 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3325 } else { 3326 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 3327 } 3328 3329 if (events->sctp_association_event) { 3330 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3331 } else { 3332 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 3333 } 3334 3335 if (events->sctp_address_event) { 3336 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3337 } else { 3338 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 3339 } 3340 3341 if (events->sctp_send_failure_event) { 3342 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3343 } else { 3344 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 3345 } 3346 3347 if (events->sctp_peer_error_event) { 3348 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3349 } else { 3350 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR); 3351 } 3352 3353 if (events->sctp_shutdown_event) { 3354 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3355 } else { 3356 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 3357 } 3358 3359 if (events->sctp_partial_delivery_event) { 3360 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3361 } else { 3362 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 3363 } 3364 3365 if (events->sctp_adaptation_layer_event) { 3366 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3367 } else { 3368 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 3369 } 3370 3371 if (events->sctp_authentication_event) { 3372 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3373 } else { 3374 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT); 3375 } 3376 3377 if (events->sctp_stream_reset_events) { 3378 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3379 } else { 3380 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 3381 } 3382 SCTP_INP_WUNLOCK(inp); 3383 } 3384 break; 3385 3386 case SCTP_ADAPTATION_LAYER: 3387 { 3388 struct sctp_setadaptation *adap_bits; 3389 3390 SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize); 3391 SCTP_INP_WLOCK(inp); 3392 inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind; 3393 SCTP_INP_WUNLOCK(inp); 3394 } 3395 break; 3396#ifdef SCTP_DEBUG 3397 case SCTP_SET_INITIAL_DBG_SEQ: 3398 { 3399 uint32_t *vvv; 3400 3401 SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize); 3402 SCTP_INP_WLOCK(inp); 3403 inp->sctp_ep.initial_sequence_debug = *vvv; 3404 SCTP_INP_WUNLOCK(inp); 3405 } 3406 break; 3407#endif 3408 case SCTP_DEFAULT_SEND_PARAM: 3409 { 3410 struct sctp_sndrcvinfo *s_info; 3411 3412 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize); 3413 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 3414 3415 if (stcb) { 3416 if (s_info->sinfo_stream <= stcb->asoc.streamoutcnt) { 3417 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send))); 3418 } else { 3419 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3420 error = EINVAL; 3421 } 3422 SCTP_TCB_UNLOCK(stcb); 3423 } else { 3424 SCTP_INP_WLOCK(inp); 3425 memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send))); 3426 SCTP_INP_WUNLOCK(inp); 3427 } 3428 } 3429 break; 3430 case SCTP_PEER_ADDR_PARAMS: 3431 /* Applys to the specific association */ 3432 { 3433 struct sctp_paddrparams *paddrp; 3434 struct sctp_nets *net; 3435 3436 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize); 3437 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 3438 net = NULL; 3439 if (stcb) { 3440 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 3441 } else { 3442 /* 3443 * We increment here since 3444 * sctp_findassociation_ep_addr() wil do a 3445 * decrement if it finds the stcb as long as 3446 * the locked tcb (last argument) is NOT a 3447 * TCB.. aka NULL. 3448 */ 3449 SCTP_INP_INCR_REF(inp); 3450 stcb = sctp_findassociation_ep_addr(&inp, 3451 (struct sockaddr *)&paddrp->spp_address, 3452 &net, NULL, NULL); 3453 if (stcb == NULL) { 3454 SCTP_INP_DECR_REF(inp); 3455 } 3456 } 3457 if (stcb && (net == NULL)) { 3458 struct sockaddr *sa; 3459 3460 sa = (struct sockaddr *)&paddrp->spp_address; 3461 if (sa->sa_family == AF_INET) { 3462 struct sockaddr_in *sin; 3463 3464 sin = (struct sockaddr_in *)sa; 3465 if (sin->sin_addr.s_addr) { 3466 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3467 SCTP_TCB_UNLOCK(stcb); 3468 error = EINVAL; 3469 break; 3470 } 3471 } else if (sa->sa_family == AF_INET6) { 3472 struct sockaddr_in6 *sin6; 3473 3474 sin6 = (struct sockaddr_in6 *)sa; 3475 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 3476 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3477 SCTP_TCB_UNLOCK(stcb); 3478 error = EINVAL; 3479 break; 3480 } 3481 } else { 3482 error = EAFNOSUPPORT; 3483 SCTP_TCB_UNLOCK(stcb); 3484 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 3485 break; 3486 } 3487 } 3488 /* sanity checks */ 3489 if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) { 3490 if (stcb) 3491 SCTP_TCB_UNLOCK(stcb); 3492 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3493 return (EINVAL); 3494 } 3495 if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) { 3496 if (stcb) 3497 SCTP_TCB_UNLOCK(stcb); 3498 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3499 return (EINVAL); 3500 } 3501 if (stcb) { 3502 /************************TCB SPECIFIC SET ******************/ 3503 /* 3504 * do we change the timer for HB, we run 3505 * only one? 3506 */ 3507 int ovh = 0; 3508 3509 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3510 ovh = SCTP_MED_OVERHEAD; 3511 } else { 3512 ovh = SCTP_MED_V4_OVERHEAD; 3513 } 3514 3515 if (paddrp->spp_hbinterval) 3516 stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval; 3517 else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 3518 stcb->asoc.heart_beat_delay = 0; 3519 3520 /* network sets ? */ 3521 if (net) { 3522 /************************NET SPECIFIC SET ******************/ 3523 if (paddrp->spp_flags & SPP_HB_DEMAND) { 3524 /* on demand HB */ 3525 if (sctp_send_hb(stcb, 1, net) < 0) { 3526 /* asoc destroyed */ 3527 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3528 error = EINVAL; 3529 break; 3530 } 3531 } 3532 if (paddrp->spp_flags & SPP_HB_DISABLE) { 3533 net->dest_state |= SCTP_ADDR_NOHB; 3534 } 3535 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3536 net->dest_state &= ~SCTP_ADDR_NOHB; 3537 } 3538 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3539 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3540 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3541 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3542 } 3543 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3544 net->mtu = paddrp->spp_pathmtu + ovh; 3545 if (net->mtu < stcb->asoc.smallest_mtu) { 3546#ifdef SCTP_PRINT_FOR_B_AND_M 3547 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n", 3548 net->mtu); 3549#endif 3550 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3551 } 3552 } 3553 } 3554 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3555 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3556 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3557 } 3558 } 3559 if (paddrp->spp_pathmaxrxt) 3560 net->failure_threshold = paddrp->spp_pathmaxrxt; 3561#ifdef INET 3562 if (paddrp->spp_flags & SPP_IPV4_TOS) { 3563 if (net->ro._l_addr.sin.sin_family == AF_INET) { 3564 net->tos_flowlabel = paddrp->spp_ipv4_tos & 0x000000fc; 3565 } 3566 } 3567#endif 3568#ifdef INET6 3569 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) { 3570 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 3571 net->tos_flowlabel = paddrp->spp_ipv6_flowlabel; 3572 } 3573 } 3574#endif 3575 } else { 3576 /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/ 3577 if (paddrp->spp_pathmaxrxt) 3578 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt; 3579 3580 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3581 /* Turn back on the timer */ 3582 stcb->asoc.hb_is_disabled = 0; 3583 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 3584 } 3585 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 3586 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3587 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3588 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 3589 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 3590 } 3591 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 3592 net->mtu = paddrp->spp_pathmtu + ovh; 3593 if (net->mtu < stcb->asoc.smallest_mtu) { 3594#ifdef SCTP_PRINT_FOR_B_AND_M 3595 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n", 3596 net->mtu); 3597#endif 3598 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 3599 } 3600 } 3601 } 3602 } 3603 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 3604 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3605 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 3606 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 3607 } 3608 } 3609 } 3610 if (paddrp->spp_flags & SPP_HB_DISABLE) { 3611 int cnt_of_unconf = 0; 3612 struct sctp_nets *lnet; 3613 3614 stcb->asoc.hb_is_disabled = 1; 3615 TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) { 3616 if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) { 3617 cnt_of_unconf++; 3618 } 3619 } 3620 /* 3621 * stop the timer ONLY if we 3622 * have no unconfirmed 3623 * addresses 3624 */ 3625 if (cnt_of_unconf == 0) { 3626 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3627 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, 3628 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11); 3629 } 3630 } 3631 } 3632 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3633 /* start up the timer. */ 3634 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3635 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 3636 } 3637 } 3638#ifdef INET 3639 if (paddrp->spp_flags & SPP_IPV4_TOS) 3640 stcb->asoc.default_tos = paddrp->spp_ipv4_tos & 0x000000fc; 3641#endif 3642#ifdef INET6 3643 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) 3644 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel; 3645#endif 3646 3647 } 3648 SCTP_TCB_UNLOCK(stcb); 3649 } else { 3650 /************************NO TCB, SET TO default stuff ******************/ 3651 SCTP_INP_WLOCK(inp); 3652 /* 3653 * For the TOS/FLOWLABEL stuff you set it 3654 * with the options on the socket 3655 */ 3656 if (paddrp->spp_pathmaxrxt) { 3657 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt; 3658 } 3659 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 3660 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0; 3661 else if (paddrp->spp_hbinterval) { 3662 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL) 3663 paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL; 3664 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval); 3665 } 3666 if (paddrp->spp_flags & SPP_HB_ENABLE) { 3667 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 3668 3669 } else if (paddrp->spp_flags & SPP_HB_DISABLE) { 3670 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 3671 } 3672 SCTP_INP_WUNLOCK(inp); 3673 } 3674 } 3675 break; 3676 case SCTP_RTOINFO: 3677 { 3678 struct sctp_rtoinfo *srto; 3679 uint32_t new_init, new_min, new_max; 3680 3681 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize); 3682 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 3683 3684 if (stcb) { 3685 if (srto->srto_initial) 3686 new_init = srto->srto_initial; 3687 else 3688 new_init = stcb->asoc.initial_rto; 3689 if (srto->srto_max) 3690 new_max = srto->srto_max; 3691 else 3692 new_max = stcb->asoc.maxrto; 3693 if (srto->srto_min) 3694 new_min = srto->srto_min; 3695 else 3696 new_min = stcb->asoc.minrto; 3697 if ((new_min <= new_init) && (new_init <= new_max)) { 3698 stcb->asoc.initial_rto = new_init; 3699 stcb->asoc.maxrto = new_max; 3700 stcb->asoc.minrto = new_min; 3701 } else { 3702 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDOM); 3703 error = EDOM; 3704 } 3705 SCTP_TCB_UNLOCK(stcb); 3706 } else { 3707 SCTP_INP_WLOCK(inp); 3708 if (srto->srto_initial) 3709 new_init = srto->srto_initial; 3710 else 3711 new_init = inp->sctp_ep.initial_rto; 3712 if (srto->srto_max) 3713 new_max = srto->srto_max; 3714 else 3715 new_max = inp->sctp_ep.sctp_maxrto; 3716 if (srto->srto_min) 3717 new_min = srto->srto_min; 3718 else 3719 new_min = inp->sctp_ep.sctp_minrto; 3720 if ((new_min <= new_init) && (new_init <= new_max)) { 3721 inp->sctp_ep.initial_rto = new_init; 3722 inp->sctp_ep.sctp_maxrto = new_max; 3723 inp->sctp_ep.sctp_minrto = new_min; 3724 } else { 3725 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDOM); 3726 error = EDOM; 3727 } 3728 SCTP_INP_WUNLOCK(inp); 3729 } 3730 } 3731 break; 3732 case SCTP_ASSOCINFO: 3733 { 3734 struct sctp_assocparams *sasoc; 3735 3736 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize); 3737 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 3738 if (sasoc->sasoc_cookie_life) { 3739 /* boundary check the cookie life */ 3740 if (sasoc->sasoc_cookie_life < 1000) 3741 sasoc->sasoc_cookie_life = 1000; 3742 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) { 3743 sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE; 3744 } 3745 } 3746 if (stcb) { 3747 if (sasoc->sasoc_asocmaxrxt) 3748 stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt; 3749 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 3750 sasoc->sasoc_peer_rwnd = 0; 3751 sasoc->sasoc_local_rwnd = 0; 3752 if (sasoc->sasoc_cookie_life) { 3753 stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 3754 } 3755 SCTP_TCB_UNLOCK(stcb); 3756 } else { 3757 SCTP_INP_WLOCK(inp); 3758 if (sasoc->sasoc_asocmaxrxt) 3759 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt; 3760 sasoc->sasoc_number_peer_destinations = 0; 3761 sasoc->sasoc_peer_rwnd = 0; 3762 sasoc->sasoc_local_rwnd = 0; 3763 if (sasoc->sasoc_cookie_life) { 3764 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 3765 } 3766 SCTP_INP_WUNLOCK(inp); 3767 } 3768 } 3769 break; 3770 case SCTP_INITMSG: 3771 { 3772 struct sctp_initmsg *sinit; 3773 3774 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize); 3775 SCTP_INP_WLOCK(inp); 3776 if (sinit->sinit_num_ostreams) 3777 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams; 3778 3779 if (sinit->sinit_max_instreams) 3780 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams; 3781 3782 if (sinit->sinit_max_attempts) 3783 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts; 3784 3785 if (sinit->sinit_max_init_timeo) 3786 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo; 3787 SCTP_INP_WUNLOCK(inp); 3788 } 3789 break; 3790 case SCTP_PRIMARY_ADDR: 3791 { 3792 struct sctp_setprim *spa; 3793 struct sctp_nets *net, *lnet; 3794 3795 SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize); 3796 SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id); 3797 3798 net = NULL; 3799 if (stcb) { 3800 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr); 3801 } else { 3802 /* 3803 * We increment here since 3804 * sctp_findassociation_ep_addr() wil do a 3805 * decrement if it finds the stcb as long as 3806 * the locked tcb (last argument) is NOT a 3807 * TCB.. aka NULL. 3808 */ 3809 SCTP_INP_INCR_REF(inp); 3810 stcb = sctp_findassociation_ep_addr(&inp, 3811 (struct sockaddr *)&spa->ssp_addr, 3812 &net, NULL, NULL); 3813 if (stcb == NULL) { 3814 SCTP_INP_DECR_REF(inp); 3815 } 3816 } 3817 3818 if ((stcb) && (net)) { 3819 if ((net != stcb->asoc.primary_destination) && 3820 (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) { 3821 /* Ok we need to set it */ 3822 lnet = stcb->asoc.primary_destination; 3823 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) { 3824 if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) { 3825 net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH; 3826 } 3827 net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY; 3828 } 3829 } 3830 } else { 3831 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3832 error = EINVAL; 3833 } 3834 if (stcb) { 3835 SCTP_TCB_UNLOCK(stcb); 3836 } 3837 } 3838 break; 3839 case SCTP_SET_DYNAMIC_PRIMARY: 3840 { 3841 union sctp_sockstore *ss; 3842 3843 error = priv_check(curthread, 3844 PRIV_NETINET_RESERVEDPORT); 3845 if (error) 3846 break; 3847 3848 SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize); 3849 /* SUPER USER CHECK? */ 3850 error = sctp_dynamic_set_primary(&ss->sa, vrf_id); 3851 } 3852 break; 3853 case SCTP_SET_PEER_PRIMARY_ADDR: 3854 { 3855 struct sctp_setpeerprim *sspp; 3856 3857 SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize); 3858 SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id); 3859 if (stcb != NULL) { 3860 struct sctp_ifa *ifa; 3861 3862 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr, 3863 stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED); 3864 if (ifa == NULL) { 3865 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3866 error = EINVAL; 3867 goto out_of_it; 3868 } 3869 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 3870 /* 3871 * Must validate the ifa found is in 3872 * our ep 3873 */ 3874 struct sctp_laddr *laddr; 3875 int found = 0; 3876 3877 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 3878 if (laddr->ifa == NULL) { 3879 SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n", 3880 __FUNCTION__); 3881 continue; 3882 } 3883 if (laddr->ifa == ifa) { 3884 found = 1; 3885 break; 3886 } 3887 } 3888 if (!found) { 3889 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3890 error = EINVAL; 3891 goto out_of_it; 3892 } 3893 } 3894 if (sctp_set_primary_ip_address_sa(stcb, 3895 (struct sockaddr *)&sspp->sspp_addr) != 0) { 3896 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3897 error = EINVAL; 3898 } 3899 out_of_it: 3900 SCTP_TCB_UNLOCK(stcb); 3901 } else { 3902 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3903 error = EINVAL; 3904 } 3905 3906 } 3907 break; 3908 case SCTP_BINDX_ADD_ADDR: 3909 { 3910 struct sctp_getaddresses *addrs; 3911 size_t sz; 3912 struct thread *td; 3913 int prison = 0; 3914 3915 td = (struct thread *)p; 3916 if (jailed(td->td_ucred)) { 3917 prison = 1; 3918 } 3919 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, 3920 optsize); 3921 if (addrs->addr->sa_family == AF_INET) { 3922 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 3923 if (optsize < sz) { 3924 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3925 error = EINVAL; 3926 break; 3927 } 3928 if (prison && prison_ip(td->td_ucred, 0, &(((struct sockaddr_in *)(addrs->addr))->sin_addr.s_addr))) { 3929 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRNOTAVAIL); 3930 error = EADDRNOTAVAIL; 3931 } 3932 } else if (addrs->addr->sa_family == AF_INET6) { 3933 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 3934 if (optsize < sz) { 3935 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3936 error = EINVAL; 3937 break; 3938 } 3939 /* JAIL XXXX Add else here for V6 */ 3940 } 3941 sctp_bindx_add_address(so, inp, addrs->addr, 3942 addrs->sget_assoc_id, vrf_id, 3943 &error, p); 3944 } 3945 break; 3946 case SCTP_BINDX_REM_ADDR: 3947 { 3948 struct sctp_getaddresses *addrs; 3949 size_t sz; 3950 struct thread *td; 3951 int prison = 0; 3952 3953 td = (struct thread *)p; 3954 if (jailed(td->td_ucred)) { 3955 prison = 1; 3956 } 3957 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize); 3958 if (addrs->addr->sa_family == AF_INET) { 3959 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 3960 if (optsize < sz) { 3961 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3962 error = EINVAL; 3963 break; 3964 } 3965 if (prison && prison_ip(td->td_ucred, 0, &(((struct sockaddr_in *)(addrs->addr))->sin_addr.s_addr))) { 3966 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRNOTAVAIL); 3967 error = EADDRNOTAVAIL; 3968 } 3969 } else if (addrs->addr->sa_family == AF_INET6) { 3970 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 3971 if (optsize < sz) { 3972 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3973 error = EINVAL; 3974 break; 3975 } 3976 /* JAIL XXXX Add else here for V6 */ 3977 } 3978 sctp_bindx_delete_address(so, inp, addrs->addr, 3979 addrs->sget_assoc_id, vrf_id, 3980 &error); 3981 } 3982 break; 3983 default: 3984 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 3985 error = ENOPROTOOPT; 3986 break; 3987 } /* end switch (opt) */ 3988 return (error); 3989} 3990 3991 3992int 3993sctp_ctloutput(struct socket *so, struct sockopt *sopt) 3994{ 3995 void *optval = NULL; 3996 size_t optsize = 0; 3997 struct sctp_inpcb *inp; 3998 void *p; 3999 int error = 0; 4000 4001 inp = (struct sctp_inpcb *)so->so_pcb; 4002 if (inp == 0) { 4003 /* I made the same as TCP since we are not setup? */ 4004 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4005 return (ECONNRESET); 4006 } 4007 if (sopt->sopt_level != IPPROTO_SCTP) { 4008 /* wrong proto level... send back up to IP */ 4009#ifdef INET6 4010 if (INP_CHECK_SOCKAF(so, AF_INET6)) 4011 error = ip6_ctloutput(so, sopt); 4012 else 4013#endif /* INET6 */ 4014 error = ip_ctloutput(so, sopt); 4015 return (error); 4016 } 4017 optsize = sopt->sopt_valsize; 4018 if (optsize) { 4019 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT); 4020 if (optval == NULL) { 4021 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS); 4022 return (ENOBUFS); 4023 } 4024 error = sooptcopyin(sopt, optval, optsize, optsize); 4025 if (error) { 4026 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4027 goto out; 4028 } 4029 } 4030 p = (void *)sopt->sopt_td; 4031 if (sopt->sopt_dir == SOPT_SET) { 4032 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p); 4033 } else if (sopt->sopt_dir == SOPT_GET) { 4034 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p); 4035 } else { 4036 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4037 error = EINVAL; 4038 } 4039 if ((error == 0) && (optval != NULL)) { 4040 error = sooptcopyout(sopt, optval, optsize); 4041 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4042 } else if (optval != NULL) { 4043 SCTP_FREE(optval, SCTP_M_SOCKOPT); 4044 } 4045out: 4046 return (error); 4047} 4048 4049 4050static int 4051sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p) 4052{ 4053 int error = 0; 4054 int create_lock_on = 0; 4055 uint32_t vrf_id; 4056 struct sctp_inpcb *inp; 4057 struct sctp_tcb *stcb = NULL; 4058 4059 inp = (struct sctp_inpcb *)so->so_pcb; 4060 if (inp == 0) { 4061 /* I made the same as TCP since we are not setup? */ 4062 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4063 return (ECONNRESET); 4064 } 4065 if (addr == NULL) { 4066 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4067 return EINVAL; 4068 } 4069 if ((addr->sa_family == AF_INET6) && (addr->sa_len != sizeof(struct sockaddr_in6))) { 4070 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4071 return (EINVAL); 4072 } 4073 if ((addr->sa_family == AF_INET) && (addr->sa_len != sizeof(struct sockaddr_in))) { 4074 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4075 return (EINVAL); 4076 } 4077 SCTP_INP_INCR_REF(inp); 4078 SCTP_ASOC_CREATE_LOCK(inp); 4079 create_lock_on = 1; 4080 4081 4082 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 4083 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 4084 /* Should I really unlock ? */ 4085 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 4086 error = EFAULT; 4087 goto out_now; 4088 } 4089#ifdef INET6 4090 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 4091 (addr->sa_family == AF_INET6)) { 4092 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4093 error = EINVAL; 4094 goto out_now; 4095 } 4096#endif /* INET6 */ 4097 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 4098 SCTP_PCB_FLAGS_UNBOUND) { 4099 /* Bind a ephemeral port */ 4100 error = sctp_inpcb_bind(so, NULL, NULL, p); 4101 if (error) { 4102 goto out_now; 4103 } 4104 } 4105 /* Now do we connect? */ 4106 if (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) { 4107 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4108 error = EINVAL; 4109 goto out_now; 4110 } 4111 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 4112 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 4113 /* We are already connected AND the TCP model */ 4114 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 4115 error = EADDRINUSE; 4116 goto out_now; 4117 } 4118 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4119 SCTP_INP_RLOCK(inp); 4120 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4121 SCTP_INP_RUNLOCK(inp); 4122 } else { 4123 /* 4124 * We increment here since sctp_findassociation_ep_addr() 4125 * wil do a decrement if it finds the stcb as long as the 4126 * locked tcb (last argument) is NOT a TCB.. aka NULL. 4127 */ 4128 SCTP_INP_INCR_REF(inp); 4129 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL); 4130 if (stcb == NULL) { 4131 SCTP_INP_DECR_REF(inp); 4132 } else { 4133 SCTP_TCB_UNLOCK(stcb); 4134 } 4135 } 4136 if (stcb != NULL) { 4137 /* Already have or am bring up an association */ 4138 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 4139 error = EALREADY; 4140 goto out_now; 4141 } 4142 vrf_id = inp->def_vrf_id; 4143 /* We are GOOD to go */ 4144 stcb = sctp_aloc_assoc(inp, addr, 1, &error, 0, vrf_id, p); 4145 if (stcb == NULL) { 4146 /* Gak! no memory */ 4147 goto out_now; 4148 } 4149 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 4150 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 4151 /* Set the connected flag so we can queue data */ 4152 soisconnecting(so); 4153 } 4154 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 4155 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 4156 4157 /* initialize authentication parameters for the assoc */ 4158 sctp_initialize_auth_params(inp, stcb); 4159 4160 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 4161 SCTP_TCB_UNLOCK(stcb); 4162out_now: 4163 if (create_lock_on) { 4164 SCTP_ASOC_CREATE_UNLOCK(inp); 4165 } 4166 SCTP_INP_DECR_REF(inp); 4167 return error; 4168} 4169 4170int 4171sctp_listen(struct socket *so, int backlog, struct thread *p) 4172{ 4173 /* 4174 * Note this module depends on the protocol processing being called 4175 * AFTER any socket level flags and backlog are applied to the 4176 * socket. The traditional way that the socket flags are applied is 4177 * AFTER protocol processing. We have made a change to the 4178 * sys/kern/uipc_socket.c module to reverse this but this MUST be in 4179 * place if the socket API for SCTP is to work properly. 4180 */ 4181 4182 int error = 0; 4183 struct sctp_inpcb *inp; 4184 4185 inp = (struct sctp_inpcb *)so->so_pcb; 4186 if (inp == 0) { 4187 /* I made the same as TCP since we are not setup? */ 4188 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4189 return (ECONNRESET); 4190 } 4191 SCTP_INP_RLOCK(inp); 4192#ifdef SCTP_LOCK_LOGGING 4193 if (sctp_logging_level & SCTP_LOCK_LOGGING_ENABLE) { 4194 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK); 4195 } 4196#endif 4197 SOCK_LOCK(so); 4198 error = solisten_proto_check(so); 4199 if (error) { 4200 SOCK_UNLOCK(so); 4201 SCTP_INP_RUNLOCK(inp); 4202 return (error); 4203 } 4204 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 4205 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 4206 /* We are already connected AND the TCP model */ 4207 SCTP_INP_RUNLOCK(inp); 4208 SOCK_UNLOCK(so); 4209 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 4210 return (EADDRINUSE); 4211 } 4212 if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) { 4213 /* We must do a bind. */ 4214 SOCK_UNLOCK(so); 4215 SCTP_INP_RUNLOCK(inp); 4216 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) { 4217 /* bind error, probably perm */ 4218 return (error); 4219 } 4220 SOCK_LOCK(so); 4221 } else { 4222 if (backlog != 0) { 4223 inp->sctp_flags |= SCTP_PCB_FLAGS_LISTENING; 4224 } else { 4225 inp->sctp_flags &= ~SCTP_PCB_FLAGS_LISTENING; 4226 } 4227 SCTP_INP_RUNLOCK(inp); 4228 } 4229 /* It appears for 7.0 and on, we must always call this. */ 4230 solisten_proto(so, backlog); 4231 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 4232 /* remove the ACCEPTCONN flag for one-to-many sockets */ 4233 so->so_options &= ~SO_ACCEPTCONN; 4234 } 4235 if (backlog == 0) { 4236 /* turning off listen */ 4237 so->so_options &= ~SO_ACCEPTCONN; 4238 } 4239 SOCK_UNLOCK(so); 4240 return (error); 4241} 4242 4243static int sctp_defered_wakeup_cnt = 0; 4244 4245int 4246sctp_accept(struct socket *so, struct sockaddr **addr) 4247{ 4248 struct sctp_tcb *stcb; 4249 struct sctp_inpcb *inp; 4250 union sctp_sockstore store; 4251 4252#ifdef INET6 4253 int error; 4254 4255#endif 4256 inp = (struct sctp_inpcb *)so->so_pcb; 4257 4258 if (inp == 0) { 4259 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4260 return (ECONNRESET); 4261 } 4262 SCTP_INP_RLOCK(inp); 4263 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 4264 SCTP_INP_RUNLOCK(inp); 4265 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 4266 return (EOPNOTSUPP); 4267 } 4268 if (so->so_state & SS_ISDISCONNECTED) { 4269 SCTP_INP_RUNLOCK(inp); 4270 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED); 4271 return (ECONNABORTED); 4272 } 4273 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4274 if (stcb == NULL) { 4275 SCTP_INP_RUNLOCK(inp); 4276 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4277 return (ECONNRESET); 4278 } 4279 SCTP_TCB_LOCK(stcb); 4280 SCTP_INP_RUNLOCK(inp); 4281 store = stcb->asoc.primary_destination->ro._l_addr; 4282 SCTP_TCB_UNLOCK(stcb); 4283 switch (store.sa.sa_family) { 4284 case AF_INET: 4285 { 4286 struct sockaddr_in *sin; 4287 4288 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4289 sin->sin_family = AF_INET; 4290 sin->sin_len = sizeof(*sin); 4291 sin->sin_port = ((struct sockaddr_in *)&store)->sin_port; 4292 sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr; 4293 *addr = (struct sockaddr *)sin; 4294 break; 4295 } 4296#ifdef INET6 4297 case AF_INET6: 4298 { 4299 struct sockaddr_in6 *sin6; 4300 4301 SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6); 4302 sin6->sin6_family = AF_INET6; 4303 sin6->sin6_len = sizeof(*sin6); 4304 sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port; 4305 4306 sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr; 4307 if ((error = sa6_recoverscope(sin6)) != 0) { 4308 SCTP_FREE_SONAME(sin6); 4309 return (error); 4310 } 4311 *addr = (struct sockaddr *)sin6; 4312 break; 4313 } 4314#endif 4315 default: 4316 /* TSNH */ 4317 break; 4318 } 4319 /* Wake any delayed sleep action */ 4320 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { 4321 SCTP_INP_WLOCK(inp); 4322 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE; 4323 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) { 4324 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT; 4325 SCTP_INP_WUNLOCK(inp); 4326 SOCKBUF_LOCK(&inp->sctp_socket->so_snd); 4327 if (sowriteable(inp->sctp_socket)) { 4328 sowwakeup_locked(inp->sctp_socket); 4329 } else { 4330 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd); 4331 } 4332 SCTP_INP_WLOCK(inp); 4333 } 4334 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) { 4335 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT; 4336 SCTP_INP_WUNLOCK(inp); 4337 SOCKBUF_LOCK(&inp->sctp_socket->so_rcv); 4338 if (soreadable(inp->sctp_socket)) { 4339 sctp_defered_wakeup_cnt++; 4340 sorwakeup_locked(inp->sctp_socket); 4341 } else { 4342 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv); 4343 } 4344 SCTP_INP_WLOCK(inp); 4345 } 4346 SCTP_INP_WUNLOCK(inp); 4347 } 4348 return (0); 4349} 4350 4351int 4352sctp_ingetaddr(struct socket *so, struct sockaddr **addr) 4353{ 4354 struct sockaddr_in *sin; 4355 uint32_t vrf_id; 4356 struct sctp_inpcb *inp; 4357 struct sctp_ifa *sctp_ifa; 4358 4359 /* 4360 * Do the malloc first in case it blocks. 4361 */ 4362 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4363 sin->sin_family = AF_INET; 4364 sin->sin_len = sizeof(*sin); 4365 inp = (struct sctp_inpcb *)so->so_pcb; 4366 if (!inp) { 4367 SCTP_FREE_SONAME(sin); 4368 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4369 return ECONNRESET; 4370 } 4371 SCTP_INP_RLOCK(inp); 4372 sin->sin_port = inp->sctp_lport; 4373 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 4374 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4375 struct sctp_tcb *stcb; 4376 struct sockaddr_in *sin_a; 4377 struct sctp_nets *net; 4378 int fnd; 4379 4380 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4381 if (stcb == NULL) { 4382 goto notConn; 4383 } 4384 fnd = 0; 4385 sin_a = NULL; 4386 SCTP_TCB_LOCK(stcb); 4387 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4388 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 4389 if (sin_a == NULL) 4390 /* this will make coverity happy */ 4391 continue; 4392 4393 if (sin_a->sin_family == AF_INET) { 4394 fnd = 1; 4395 break; 4396 } 4397 } 4398 if ((!fnd) || (sin_a == NULL)) { 4399 /* punt */ 4400 SCTP_TCB_UNLOCK(stcb); 4401 goto notConn; 4402 } 4403 vrf_id = inp->def_vrf_id; 4404 sctp_ifa = sctp_source_address_selection(inp, 4405 stcb, 4406 (sctp_route_t *) & net->ro, 4407 net, 0, vrf_id); 4408 if (sctp_ifa) { 4409 sin->sin_addr = sctp_ifa->address.sin.sin_addr; 4410 sctp_free_ifa(sctp_ifa); 4411 } 4412 SCTP_TCB_UNLOCK(stcb); 4413 } else { 4414 /* For the bound all case you get back 0 */ 4415 notConn: 4416 sin->sin_addr.s_addr = 0; 4417 } 4418 4419 } else { 4420 /* Take the first IPv4 address in the list */ 4421 struct sctp_laddr *laddr; 4422 int fnd = 0; 4423 4424 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4425 if (laddr->ifa->address.sa.sa_family == AF_INET) { 4426 struct sockaddr_in *sin_a; 4427 4428 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa; 4429 sin->sin_addr = sin_a->sin_addr; 4430 fnd = 1; 4431 break; 4432 } 4433 } 4434 if (!fnd) { 4435 SCTP_FREE_SONAME(sin); 4436 SCTP_INP_RUNLOCK(inp); 4437 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4438 return ENOENT; 4439 } 4440 } 4441 SCTP_INP_RUNLOCK(inp); 4442 (*addr) = (struct sockaddr *)sin; 4443 return (0); 4444} 4445 4446int 4447sctp_peeraddr(struct socket *so, struct sockaddr **addr) 4448{ 4449 struct sockaddr_in *sin = (struct sockaddr_in *)*addr; 4450 int fnd; 4451 struct sockaddr_in *sin_a; 4452 struct sctp_inpcb *inp; 4453 struct sctp_tcb *stcb; 4454 struct sctp_nets *net; 4455 4456 /* Do the malloc first in case it blocks. */ 4457 inp = (struct sctp_inpcb *)so->so_pcb; 4458 if ((inp == NULL) || 4459 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { 4460 /* UDP type and listeners will drop out here */ 4461 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 4462 return (ENOTCONN); 4463 } 4464 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 4465 sin->sin_family = AF_INET; 4466 sin->sin_len = sizeof(*sin); 4467 4468 /* We must recapture incase we blocked */ 4469 inp = (struct sctp_inpcb *)so->so_pcb; 4470 if (!inp) { 4471 SCTP_FREE_SONAME(sin); 4472 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4473 return ECONNRESET; 4474 } 4475 SCTP_INP_RLOCK(inp); 4476 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4477 if (stcb) { 4478 SCTP_TCB_LOCK(stcb); 4479 } 4480 SCTP_INP_RUNLOCK(inp); 4481 if (stcb == NULL) { 4482 SCTP_FREE_SONAME(sin); 4483 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4484 return ECONNRESET; 4485 } 4486 fnd = 0; 4487 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4488 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 4489 if (sin_a->sin_family == AF_INET) { 4490 fnd = 1; 4491 sin->sin_port = stcb->rport; 4492 sin->sin_addr = sin_a->sin_addr; 4493 break; 4494 } 4495 } 4496 SCTP_TCB_UNLOCK(stcb); 4497 if (!fnd) { 4498 /* No IPv4 address */ 4499 SCTP_FREE_SONAME(sin); 4500 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4501 return ENOENT; 4502 } 4503 (*addr) = (struct sockaddr *)sin; 4504 return (0); 4505} 4506 4507struct pr_usrreqs sctp_usrreqs = { 4508 .pru_abort = sctp_abort, 4509 .pru_accept = sctp_accept, 4510 .pru_attach = sctp_attach, 4511 .pru_bind = sctp_bind, 4512 .pru_connect = sctp_connect, 4513 .pru_control = in_control, 4514 .pru_close = sctp_close, 4515 .pru_detach = sctp_close, 4516 .pru_sopoll = sopoll_generic, 4517 .pru_flush = sctp_flush, 4518 .pru_disconnect = sctp_disconnect, 4519 .pru_listen = sctp_listen, 4520 .pru_peeraddr = sctp_peeraddr, 4521 .pru_send = sctp_sendm, 4522 .pru_shutdown = sctp_shutdown, 4523 .pru_sockaddr = sctp_ingetaddr, 4524 .pru_sosend = sctp_sosend, 4525 .pru_soreceive = sctp_soreceive 4526}; 4527