sctp_usrreq.c revision 223697
1/*- 2 * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. 3 * Copyright (c) 2008-2011, by Randall Stewart. All rights reserved. 4 * Copyright (c) 2008-2011, by Michael Tuexen. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * a) Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * b) Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the distribution. 15 * 16 * c) Neither the name of Cisco Systems, Inc. nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33/* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $ */ 34 35#include <sys/cdefs.h> 36__FBSDID("$FreeBSD: head/sys/netinet/sctp_usrreq.c 223697 2011-06-30 16:56:55Z tuexen $"); 37#include <netinet/sctp_os.h> 38#include <sys/proc.h> 39#include <netinet/sctp_pcb.h> 40#include <netinet/sctp_header.h> 41#include <netinet/sctp_var.h> 42#if defined(INET6) 43#endif 44#include <netinet/sctp_sysctl.h> 45#include <netinet/sctp_output.h> 46#include <netinet/sctp_uio.h> 47#include <netinet/sctp_asconf.h> 48#include <netinet/sctputil.h> 49#include <netinet/sctp_indata.h> 50#include <netinet/sctp_timer.h> 51#include <netinet/sctp_auth.h> 52#include <netinet/sctp_bsd_addr.h> 53#include <netinet/udp.h> 54 55 56 57extern struct sctp_cc_functions sctp_cc_functions[]; 58extern struct sctp_ss_functions sctp_ss_functions[]; 59 60void 61sctp_init(void) 62{ 63 u_long sb_max_adj; 64 65 /* Initialize and modify the sysctled variables */ 66 sctp_init_sysctls(); 67 if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE) 68 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8); 69 /* 70 * Allow a user to take no more than 1/2 the number of clusters or 71 * the SB_MAX whichever is smaller for the send window. 72 */ 73 sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES)); 74 SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj, 75 (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT)); 76 /* 77 * Now for the recv window, should we take the same amount? or 78 * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For 79 * now I will just copy. 80 */ 81 SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace); 82 83 SCTP_BASE_VAR(first_time) = 0; 84 SCTP_BASE_VAR(sctp_pcb_initialized) = 0; 85 sctp_pcb_init(); 86#if defined(SCTP_PACKET_LOGGING) 87 SCTP_BASE_VAR(packet_log_writers) = 0; 88 SCTP_BASE_VAR(packet_log_end) = 0; 89 bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE); 90#endif 91 92 93} 94 95void 96sctp_finish(void) 97{ 98 sctp_pcb_finish(); 99} 100 101 102 103void 104sctp_pathmtu_adjustment(struct sctp_inpcb *inp, 105 struct sctp_tcb *stcb, 106 struct sctp_nets *net, 107 uint16_t nxtsz) 108{ 109 struct sctp_tmit_chunk *chk; 110 uint16_t overhead; 111 112 /* Adjust that too */ 113 stcb->asoc.smallest_mtu = nxtsz; 114 /* now off to subtract IP_DF flag if needed */ 115 overhead = IP_HDR_SIZE; 116 if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) { 117 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id); 118 } 119 TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) { 120 if ((chk->send_size + overhead) > nxtsz) { 121 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 122 } 123 } 124 TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { 125 if ((chk->send_size + overhead) > nxtsz) { 126 /* 127 * For this guy we also mark for immediate resend 128 * since we sent to big of chunk 129 */ 130 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK; 131 if (chk->sent < SCTP_DATAGRAM_RESEND) { 132 sctp_flight_size_decrease(chk); 133 sctp_total_flight_decrease(stcb, chk); 134 } 135 if (chk->sent != SCTP_DATAGRAM_RESEND) { 136 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt); 137 } 138 chk->sent = SCTP_DATAGRAM_RESEND; 139 chk->rec.data.doing_fast_retransmit = 0; 140 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) { 141 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU, 142 chk->whoTo->flight_size, 143 chk->book_size, 144 (uintptr_t) chk->whoTo, 145 chk->rec.data.TSN_seq); 146 } 147 /* Clear any time so NO RTT is being done */ 148 chk->do_rtt = 0; 149 } 150 } 151} 152 153#ifdef INET 154static void 155sctp_notify_mbuf(struct sctp_inpcb *inp, 156 struct sctp_tcb *stcb, 157 struct sctp_nets *net, 158 struct ip *ip, 159 struct sctphdr *sh) 160{ 161 struct icmp *icmph; 162 int totsz, tmr_stopped = 0; 163 uint16_t nxtsz; 164 165 /* protection */ 166 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 167 (ip == NULL) || (sh == NULL)) { 168 if (stcb != NULL) { 169 SCTP_TCB_UNLOCK(stcb); 170 } 171 return; 172 } 173 /* First job is to verify the vtag matches what I would send */ 174 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 175 SCTP_TCB_UNLOCK(stcb); 176 return; 177 } 178 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 179 sizeof(struct ip))); 180 if (icmph->icmp_type != ICMP_UNREACH) { 181 /* We only care about unreachable */ 182 SCTP_TCB_UNLOCK(stcb); 183 return; 184 } 185 if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) { 186 /* not a unreachable message due to frag. */ 187 SCTP_TCB_UNLOCK(stcb); 188 return; 189 } 190 totsz = ip->ip_len; 191 192 nxtsz = ntohs(icmph->icmp_nextmtu); 193 if (nxtsz == 0) { 194 /* 195 * old type router that does not tell us what the next size 196 * mtu is. Rats we will have to guess (in a educated fashion 197 * of course) 198 */ 199 nxtsz = sctp_get_prev_mtu(totsz); 200 } 201 /* Stop any PMTU timer */ 202 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 203 tmr_stopped = 1; 204 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 205 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1); 206 } 207 /* Adjust destination size limit */ 208 if (net->mtu > nxtsz) { 209 net->mtu = nxtsz; 210 if (net->port) { 211 net->mtu -= sizeof(struct udphdr); 212 } 213 } 214 /* now what about the ep? */ 215 if (stcb->asoc.smallest_mtu > nxtsz) { 216 sctp_pathmtu_adjustment(inp, stcb, net, nxtsz); 217 } 218 if (tmr_stopped) 219 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 220 221 SCTP_TCB_UNLOCK(stcb); 222} 223 224#endif 225 226void 227sctp_notify(struct sctp_inpcb *inp, 228 struct ip *ip, 229 struct sctphdr *sh, 230 struct sockaddr *to, 231 struct sctp_tcb *stcb, 232 struct sctp_nets *net) 233{ 234#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 235 struct socket *so; 236 237#endif 238 /* protection */ 239 int reason; 240 struct icmp *icmph; 241 242 243 if ((inp == NULL) || (stcb == NULL) || (net == NULL) || 244 (sh == NULL) || (to == NULL)) { 245 if (stcb) 246 SCTP_TCB_UNLOCK(stcb); 247 return; 248 } 249 /* First job is to verify the vtag matches what I would send */ 250 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { 251 SCTP_TCB_UNLOCK(stcb); 252 return; 253 } 254 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - 255 sizeof(struct ip))); 256 if (icmph->icmp_type != ICMP_UNREACH) { 257 /* We only care about unreachable */ 258 SCTP_TCB_UNLOCK(stcb); 259 return; 260 } 261 if ((icmph->icmp_code == ICMP_UNREACH_NET) || 262 (icmph->icmp_code == ICMP_UNREACH_HOST) || 263 (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) || 264 (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) || 265 (icmph->icmp_code == ICMP_UNREACH_ISOLATED) || 266 (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) || 267 (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) || 268 (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) { 269 270 /* 271 * Hmm reachablity problems we must examine closely. If its 272 * not reachable, we may have lost a network. Or if there is 273 * NO protocol at the other end named SCTP. well we consider 274 * it a OOTB abort. 275 */ 276 if (net->dest_state & SCTP_ADDR_REACHABLE) { 277 /* Ok that destination is NOT reachable */ 278 SCTP_PRINTF("ICMP (thresh %d/%d) takes interface %p down\n", 279 net->error_count, 280 net->failure_threshold, 281 net); 282 283 net->dest_state &= ~SCTP_ADDR_REACHABLE; 284 net->dest_state |= SCTP_ADDR_NOT_REACHABLE; 285 /* 286 * JRS 5/14/07 - If a destination is unreachable, 287 * the PF bit is turned off. This allows an 288 * unambiguous use of the PF bit for destinations 289 * that are reachable but potentially failed. If the 290 * destination is set to the unreachable state, also 291 * set the destination to the PF state. 292 */ 293 /* 294 * Add debug message here if destination is not in 295 * PF state. 296 */ 297 /* Stop any running T3 timers here? */ 298 if ((stcb->asoc.sctp_cmt_on_off > 0) && 299 (stcb->asoc.sctp_cmt_pf > 0)) { 300 net->dest_state &= ~SCTP_ADDR_PF; 301 SCTPDBG(SCTP_DEBUG_TIMER4, "Destination %p moved from PF to unreachable.\n", 302 net); 303 } 304 net->error_count = net->failure_threshold + 1; 305 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, 306 stcb, SCTP_FAILED_THRESHOLD, 307 (void *)net, SCTP_SO_NOT_LOCKED); 308 } 309 SCTP_TCB_UNLOCK(stcb); 310 } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) || 311 (icmph->icmp_code == ICMP_UNREACH_PORT)) { 312 /* 313 * Here the peer is either playing tricks on us, including 314 * an address that belongs to someone who does not support 315 * SCTP OR was a userland implementation that shutdown and 316 * now is dead. In either case treat it like a OOTB abort 317 * with no TCB 318 */ 319 reason = SCTP_PEER_FAULTY; 320 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED); 321#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 322 so = SCTP_INP_SO(inp); 323 atomic_add_int(&stcb->asoc.refcnt, 1); 324 SCTP_TCB_UNLOCK(stcb); 325 SCTP_SOCKET_LOCK(so, 1); 326 SCTP_TCB_LOCK(stcb); 327 atomic_subtract_int(&stcb->asoc.refcnt, 1); 328#endif 329 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2); 330#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) 331 SCTP_SOCKET_UNLOCK(so, 1); 332 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */ 333#endif 334 /* no need to unlock here, since the TCB is gone */ 335 } else { 336 SCTP_TCB_UNLOCK(stcb); 337 } 338} 339 340#ifdef INET 341void 342sctp_ctlinput(cmd, sa, vip) 343 int cmd; 344 struct sockaddr *sa; 345 void *vip; 346{ 347 struct ip *ip = vip; 348 struct sctphdr *sh; 349 uint32_t vrf_id; 350 351 /* FIX, for non-bsd is this right? */ 352 vrf_id = SCTP_DEFAULT_VRFID; 353 if (sa->sa_family != AF_INET || 354 ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) { 355 return; 356 } 357 if (PRC_IS_REDIRECT(cmd)) { 358 ip = 0; 359 } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) { 360 return; 361 } 362 if (ip) { 363 struct sctp_inpcb *inp = NULL; 364 struct sctp_tcb *stcb = NULL; 365 struct sctp_nets *net = NULL; 366 struct sockaddr_in to, from; 367 368 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2)); 369 bzero(&to, sizeof(to)); 370 bzero(&from, sizeof(from)); 371 from.sin_family = to.sin_family = AF_INET; 372 from.sin_len = to.sin_len = sizeof(to); 373 from.sin_port = sh->src_port; 374 from.sin_addr = ip->ip_src; 375 to.sin_port = sh->dest_port; 376 to.sin_addr = ip->ip_dst; 377 378 /* 379 * 'to' holds the dest of the packet that failed to be sent. 380 * 'from' holds our local endpoint address. Thus we reverse 381 * the to and the from in the lookup. 382 */ 383 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from, 384 (struct sockaddr *)&to, 385 &inp, &net, 1, vrf_id); 386 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) { 387 if (cmd != PRC_MSGSIZE) { 388 sctp_notify(inp, ip, sh, 389 (struct sockaddr *)&to, stcb, 390 net); 391 } else { 392 /* handle possible ICMP size messages */ 393 sctp_notify_mbuf(inp, stcb, net, ip, sh); 394 } 395 } else { 396 if ((stcb == NULL) && (inp != NULL)) { 397 /* reduce ref-count */ 398 SCTP_INP_WLOCK(inp); 399 SCTP_INP_DECR_REF(inp); 400 SCTP_INP_WUNLOCK(inp); 401 } 402 if (stcb) { 403 SCTP_TCB_UNLOCK(stcb); 404 } 405 } 406 } 407 return; 408} 409 410#endif 411 412static int 413sctp_getcred(SYSCTL_HANDLER_ARGS) 414{ 415 struct xucred xuc; 416 struct sockaddr_in addrs[2]; 417 struct sctp_inpcb *inp; 418 struct sctp_nets *net; 419 struct sctp_tcb *stcb; 420 int error; 421 uint32_t vrf_id; 422 423 /* FIX, for non-bsd is this right? */ 424 vrf_id = SCTP_DEFAULT_VRFID; 425 426 error = priv_check(req->td, PRIV_NETINET_GETCRED); 427 428 if (error) 429 return (error); 430 431 error = SYSCTL_IN(req, addrs, sizeof(addrs)); 432 if (error) 433 return (error); 434 435 stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]), 436 sintosa(&addrs[1]), 437 &inp, &net, 1, vrf_id); 438 if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) { 439 if ((inp != NULL) && (stcb == NULL)) { 440 /* reduce ref-count */ 441 SCTP_INP_WLOCK(inp); 442 SCTP_INP_DECR_REF(inp); 443 goto cred_can_cont; 444 } 445 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 446 error = ENOENT; 447 goto out; 448 } 449 SCTP_TCB_UNLOCK(stcb); 450 /* 451 * We use the write lock here, only since in the error leg we need 452 * it. If we used RLOCK, then we would have to 453 * wlock/decr/unlock/rlock. Which in theory could create a hole. 454 * Better to use higher wlock. 455 */ 456 SCTP_INP_WLOCK(inp); 457cred_can_cont: 458 error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket); 459 if (error) { 460 SCTP_INP_WUNLOCK(inp); 461 goto out; 462 } 463 cru2x(inp->sctp_socket->so_cred, &xuc); 464 SCTP_INP_WUNLOCK(inp); 465 error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred)); 466out: 467 return (error); 468} 469 470SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW, 471 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection"); 472 473 474#ifdef INET 475static void 476sctp_abort(struct socket *so) 477{ 478 struct sctp_inpcb *inp; 479 uint32_t flags; 480 481 inp = (struct sctp_inpcb *)so->so_pcb; 482 if (inp == 0) { 483 return; 484 } 485sctp_must_try_again: 486 flags = inp->sctp_flags; 487#ifdef SCTP_LOG_CLOSING 488 sctp_log_closing(inp, NULL, 17); 489#endif 490 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 491 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 492#ifdef SCTP_LOG_CLOSING 493 sctp_log_closing(inp, NULL, 16); 494#endif 495 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 496 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 497 SOCK_LOCK(so); 498 SCTP_SB_CLEAR(so->so_snd); 499 /* 500 * same for the rcv ones, they are only here for the 501 * accounting/select. 502 */ 503 SCTP_SB_CLEAR(so->so_rcv); 504 505 /* Now null out the reference, we are completely detached. */ 506 so->so_pcb = NULL; 507 SOCK_UNLOCK(so); 508 } else { 509 flags = inp->sctp_flags; 510 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 511 goto sctp_must_try_again; 512 } 513 } 514 return; 515} 516 517static int 518sctp_attach(struct socket *so, int proto, struct thread *p) 519{ 520 struct sctp_inpcb *inp; 521 struct inpcb *ip_inp; 522 int error; 523 uint32_t vrf_id = SCTP_DEFAULT_VRFID; 524 525#ifdef IPSEC 526 uint32_t flags; 527 528#endif 529 530 inp = (struct sctp_inpcb *)so->so_pcb; 531 if (inp != 0) { 532 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 533 return EINVAL; 534 } 535 if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { 536 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace)); 537 if (error) { 538 return error; 539 } 540 } 541 error = sctp_inpcb_alloc(so, vrf_id); 542 if (error) { 543 return error; 544 } 545 inp = (struct sctp_inpcb *)so->so_pcb; 546 SCTP_INP_WLOCK(inp); 547 inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */ 548 ip_inp = &inp->ip_inp.inp; 549 ip_inp->inp_vflag |= INP_IPV4; 550 ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl); 551#ifdef IPSEC 552 error = ipsec_init_policy(so, &ip_inp->inp_sp); 553#ifdef SCTP_LOG_CLOSING 554 sctp_log_closing(inp, NULL, 17); 555#endif 556 if (error != 0) { 557try_again: 558 flags = inp->sctp_flags; 559 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 560 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 561#ifdef SCTP_LOG_CLOSING 562 sctp_log_closing(inp, NULL, 15); 563#endif 564 SCTP_INP_WUNLOCK(inp); 565 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 566 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 567 } else { 568 flags = inp->sctp_flags; 569 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 570 goto try_again; 571 } else { 572 SCTP_INP_WUNLOCK(inp); 573 } 574 } 575 return error; 576 } 577#endif /* IPSEC */ 578 SCTP_INP_WUNLOCK(inp); 579 return 0; 580} 581 582static int 583sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p) 584{ 585 struct sctp_inpcb *inp = NULL; 586 int error; 587 588#ifdef INET6 589 if (addr && addr->sa_family != AF_INET) { 590 /* must be a v4 address! */ 591 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 592 return EINVAL; 593 } 594#endif /* INET6 */ 595 if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) { 596 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 597 return EINVAL; 598 } 599 inp = (struct sctp_inpcb *)so->so_pcb; 600 if (inp == 0) { 601 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 602 return EINVAL; 603 } 604 error = sctp_inpcb_bind(so, addr, NULL, p); 605 return error; 606} 607 608#endif 609void 610sctp_close(struct socket *so) 611{ 612 struct sctp_inpcb *inp; 613 uint32_t flags; 614 615 inp = (struct sctp_inpcb *)so->so_pcb; 616 if (inp == 0) 617 return; 618 619 /* 620 * Inform all the lower layer assoc that we are done. 621 */ 622sctp_must_try_again: 623 flags = inp->sctp_flags; 624#ifdef SCTP_LOG_CLOSING 625 sctp_log_closing(inp, NULL, 17); 626#endif 627 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 628 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) { 629 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) || 630 (so->so_rcv.sb_cc > 0)) { 631#ifdef SCTP_LOG_CLOSING 632 sctp_log_closing(inp, NULL, 13); 633#endif 634 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, 635 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 636 } else { 637#ifdef SCTP_LOG_CLOSING 638 sctp_log_closing(inp, NULL, 14); 639#endif 640 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE, 641 SCTP_CALLED_AFTER_CMPSET_OFCLOSE); 642 } 643 /* 644 * The socket is now detached, no matter what the state of 645 * the SCTP association. 646 */ 647 SOCK_LOCK(so); 648 SCTP_SB_CLEAR(so->so_snd); 649 /* 650 * same for the rcv ones, they are only here for the 651 * accounting/select. 652 */ 653 SCTP_SB_CLEAR(so->so_rcv); 654 655 /* Now null out the reference, we are completely detached. */ 656 so->so_pcb = NULL; 657 SOCK_UNLOCK(so); 658 } else { 659 flags = inp->sctp_flags; 660 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { 661 goto sctp_must_try_again; 662 } 663 } 664 return; 665} 666 667 668int 669sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 670 struct mbuf *control, struct thread *p); 671 672 673int 674sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, 675 struct mbuf *control, struct thread *p) 676{ 677 struct sctp_inpcb *inp; 678 int error; 679 680 inp = (struct sctp_inpcb *)so->so_pcb; 681 if (inp == 0) { 682 if (control) { 683 sctp_m_freem(control); 684 control = NULL; 685 } 686 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 687 sctp_m_freem(m); 688 return EINVAL; 689 } 690 /* Got to have an to address if we are NOT a connected socket */ 691 if ((addr == NULL) && 692 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) || 693 (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE)) 694 ) { 695 goto connected_type; 696 } else if (addr == NULL) { 697 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 698 error = EDESTADDRREQ; 699 sctp_m_freem(m); 700 if (control) { 701 sctp_m_freem(control); 702 control = NULL; 703 } 704 return (error); 705 } 706#ifdef INET6 707 if (addr->sa_family != AF_INET) { 708 /* must be a v4 address! */ 709 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ); 710 sctp_m_freem(m); 711 if (control) { 712 sctp_m_freem(control); 713 control = NULL; 714 } 715 error = EDESTADDRREQ; 716 return (error); 717 } 718#endif /* INET6 */ 719connected_type: 720 /* now what about control */ 721 if (control) { 722 if (inp->control) { 723 SCTP_PRINTF("huh? control set?\n"); 724 sctp_m_freem(inp->control); 725 inp->control = NULL; 726 } 727 inp->control = control; 728 } 729 /* Place the data */ 730 if (inp->pkt) { 731 SCTP_BUF_NEXT(inp->pkt_last) = m; 732 inp->pkt_last = m; 733 } else { 734 inp->pkt_last = inp->pkt = m; 735 } 736 if ( 737 /* FreeBSD uses a flag passed */ 738 ((flags & PRUS_MORETOCOME) == 0) 739 ) { 740 /* 741 * note with the current version this code will only be used 742 * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for 743 * re-defining sosend to use the sctp_sosend. One can 744 * optionally switch back to this code (by changing back the 745 * definitions) but this is not advisable. This code is used 746 * by FreeBSD when sending a file with sendfile() though. 747 */ 748 int ret; 749 750 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags); 751 inp->pkt = NULL; 752 inp->control = NULL; 753 return (ret); 754 } else { 755 return (0); 756 } 757} 758 759int 760sctp_disconnect(struct socket *so) 761{ 762 struct sctp_inpcb *inp; 763 764 inp = (struct sctp_inpcb *)so->so_pcb; 765 if (inp == NULL) { 766 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 767 return (ENOTCONN); 768 } 769 SCTP_INP_RLOCK(inp); 770 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 771 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 772 if (LIST_EMPTY(&inp->sctp_asoc_list)) { 773 /* No connection */ 774 SCTP_INP_RUNLOCK(inp); 775 return (0); 776 } else { 777 struct sctp_association *asoc; 778 struct sctp_tcb *stcb; 779 780 stcb = LIST_FIRST(&inp->sctp_asoc_list); 781 if (stcb == NULL) { 782 SCTP_INP_RUNLOCK(inp); 783 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 784 return (EINVAL); 785 } 786 SCTP_TCB_LOCK(stcb); 787 asoc = &stcb->asoc; 788 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 789 /* We are about to be freed, out of here */ 790 SCTP_TCB_UNLOCK(stcb); 791 SCTP_INP_RUNLOCK(inp); 792 return (0); 793 } 794 if (((so->so_options & SO_LINGER) && 795 (so->so_linger == 0)) || 796 (so->so_rcv.sb_cc > 0)) { 797 if (SCTP_GET_STATE(asoc) != 798 SCTP_STATE_COOKIE_WAIT) { 799 /* Left with Data unread */ 800 struct mbuf *err; 801 802 err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA); 803 if (err) { 804 /* 805 * Fill in the user 806 * initiated abort 807 */ 808 struct sctp_paramhdr *ph; 809 810 ph = mtod(err, struct sctp_paramhdr *); 811 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr); 812 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT); 813 ph->param_length = htons(SCTP_BUF_LEN(err)); 814 } 815#if defined(SCTP_PANIC_ON_ABORT) 816 panic("disconnect does an abort"); 817#endif 818 sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED); 819 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 820 } 821 SCTP_INP_RUNLOCK(inp); 822 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 823 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 824 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 825 } 826 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3); 827 /* No unlock tcb assoc is gone */ 828 return (0); 829 } 830 if (TAILQ_EMPTY(&asoc->send_queue) && 831 TAILQ_EMPTY(&asoc->sent_queue) && 832 (asoc->stream_queue_cnt == 0)) { 833 /* there is nothing queued to send, so done */ 834 if (asoc->locked_on_sending) { 835 goto abort_anyway; 836 } 837 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) && 838 (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) { 839 /* only send SHUTDOWN 1st time thru */ 840 sctp_stop_timers_for_shutdown(stcb); 841 sctp_send_shutdown(stcb, 842 stcb->asoc.primary_destination); 843 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 844 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 845 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 846 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 847 } 848 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 849 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 850 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 851 stcb->sctp_ep, stcb, 852 asoc->primary_destination); 853 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 854 stcb->sctp_ep, stcb, 855 asoc->primary_destination); 856 } 857 } else { 858 /* 859 * we still got (or just got) data to send, 860 * so set SHUTDOWN_PENDING 861 */ 862 /* 863 * XXX sockets draft says that SCTP_EOF 864 * should be sent with no data. currently, 865 * we will allow user data to be sent first 866 * and move to SHUTDOWN-PENDING 867 */ 868 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 869 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 870 asoc->primary_destination); 871 if (asoc->locked_on_sending) { 872 /* Locked to send out the data */ 873 struct sctp_stream_queue_pending *sp; 874 875 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 876 if (sp == NULL) { 877 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 878 asoc->locked_on_sending->stream_no); 879 } else { 880 if ((sp->length == 0) && (sp->msg_is_complete == 0)) 881 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 882 } 883 } 884 if (TAILQ_EMPTY(&asoc->send_queue) && 885 TAILQ_EMPTY(&asoc->sent_queue) && 886 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 887 struct mbuf *op_err; 888 889 abort_anyway: 890 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 891 0, M_DONTWAIT, 1, MT_DATA); 892 if (op_err) { 893 /* 894 * Fill in the user 895 * initiated abort 896 */ 897 struct sctp_paramhdr *ph; 898 uint32_t *ippp; 899 900 SCTP_BUF_LEN(op_err) = 901 (sizeof(struct sctp_paramhdr) + sizeof(uint32_t)); 902 ph = mtod(op_err, 903 struct sctp_paramhdr *); 904 ph->param_type = htons( 905 SCTP_CAUSE_USER_INITIATED_ABT); 906 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 907 ippp = (uint32_t *) (ph + 1); 908 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4); 909 } 910#if defined(SCTP_PANIC_ON_ABORT) 911 panic("disconnect does an abort"); 912#endif 913 914 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4; 915 sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED); 916 SCTP_STAT_INCR_COUNTER32(sctps_aborted); 917 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || 918 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 919 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 920 } 921 SCTP_INP_RUNLOCK(inp); 922 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5); 923 return (0); 924 } else { 925 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 926 } 927 } 928 soisdisconnecting(so); 929 SCTP_TCB_UNLOCK(stcb); 930 SCTP_INP_RUNLOCK(inp); 931 return (0); 932 } 933 /* not reached */ 934 } else { 935 /* UDP model does not support this */ 936 SCTP_INP_RUNLOCK(inp); 937 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 938 return EOPNOTSUPP; 939 } 940} 941 942int 943sctp_flush(struct socket *so, int how) 944{ 945 /* 946 * We will just clear out the values and let subsequent close clear 947 * out the data, if any. Note if the user did a shutdown(SHUT_RD) 948 * they will not be able to read the data, the socket will block 949 * that from happening. 950 */ 951 struct sctp_inpcb *inp; 952 953 inp = (struct sctp_inpcb *)so->so_pcb; 954 if (inp == NULL) { 955 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 956 return EINVAL; 957 } 958 SCTP_INP_RLOCK(inp); 959 /* For the 1 to many model this does nothing */ 960 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 961 SCTP_INP_RUNLOCK(inp); 962 return (0); 963 } 964 SCTP_INP_RUNLOCK(inp); 965 if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) { 966 /* 967 * First make sure the sb will be happy, we don't use these 968 * except maybe the count 969 */ 970 SCTP_INP_WLOCK(inp); 971 SCTP_INP_READ_LOCK(inp); 972 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ; 973 SCTP_INP_READ_UNLOCK(inp); 974 SCTP_INP_WUNLOCK(inp); 975 so->so_rcv.sb_cc = 0; 976 so->so_rcv.sb_mbcnt = 0; 977 so->so_rcv.sb_mb = NULL; 978 } 979 if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) { 980 /* 981 * First make sure the sb will be happy, we don't use these 982 * except maybe the count 983 */ 984 so->so_snd.sb_cc = 0; 985 so->so_snd.sb_mbcnt = 0; 986 so->so_snd.sb_mb = NULL; 987 988 } 989 return (0); 990} 991 992int 993sctp_shutdown(struct socket *so) 994{ 995 struct sctp_inpcb *inp; 996 997 inp = (struct sctp_inpcb *)so->so_pcb; 998 if (inp == 0) { 999 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1000 return EINVAL; 1001 } 1002 SCTP_INP_RLOCK(inp); 1003 /* For UDP model this is a invalid call */ 1004 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 1005 /* Restore the flags that the soshutdown took away. */ 1006 SOCKBUF_LOCK(&so->so_rcv); 1007 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; 1008 SOCKBUF_UNLOCK(&so->so_rcv); 1009 /* This proc will wakeup for read and do nothing (I hope) */ 1010 SCTP_INP_RUNLOCK(inp); 1011 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1012 return (EOPNOTSUPP); 1013 } 1014 /* 1015 * Ok if we reach here its the TCP model and it is either a SHUT_WR 1016 * or SHUT_RDWR. This means we put the shutdown flag against it. 1017 */ 1018 { 1019 struct sctp_tcb *stcb; 1020 struct sctp_association *asoc; 1021 1022 if ((so->so_state & 1023 (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) { 1024 SCTP_INP_RUNLOCK(inp); 1025 return (ENOTCONN); 1026 } 1027 socantsendmore(so); 1028 1029 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1030 if (stcb == NULL) { 1031 /* 1032 * Ok we hit the case that the shutdown call was 1033 * made after an abort or something. Nothing to do 1034 * now. 1035 */ 1036 SCTP_INP_RUNLOCK(inp); 1037 return (0); 1038 } 1039 SCTP_TCB_LOCK(stcb); 1040 asoc = &stcb->asoc; 1041 if (TAILQ_EMPTY(&asoc->send_queue) && 1042 TAILQ_EMPTY(&asoc->sent_queue) && 1043 (asoc->stream_queue_cnt == 0)) { 1044 if (asoc->locked_on_sending) { 1045 goto abort_anyway; 1046 } 1047 /* there is nothing queued to send, so I'm done... */ 1048 if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) { 1049 /* only send SHUTDOWN the first time through */ 1050 sctp_stop_timers_for_shutdown(stcb); 1051 sctp_send_shutdown(stcb, 1052 stcb->asoc.primary_destination); 1053 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); 1054 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || 1055 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { 1056 SCTP_STAT_DECR_GAUGE32(sctps_currestab); 1057 } 1058 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); 1059 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); 1060 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, 1061 stcb->sctp_ep, stcb, 1062 asoc->primary_destination); 1063 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, 1064 stcb->sctp_ep, stcb, 1065 asoc->primary_destination); 1066 } 1067 } else { 1068 /* 1069 * we still got (or just got) data to send, so set 1070 * SHUTDOWN_PENDING 1071 */ 1072 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; 1073 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, 1074 asoc->primary_destination); 1075 1076 if (asoc->locked_on_sending) { 1077 /* Locked to send out the data */ 1078 struct sctp_stream_queue_pending *sp; 1079 1080 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); 1081 if (sp == NULL) { 1082 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", 1083 asoc->locked_on_sending->stream_no); 1084 } else { 1085 if ((sp->length == 0) && (sp->msg_is_complete == 0)) { 1086 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT; 1087 } 1088 } 1089 } 1090 if (TAILQ_EMPTY(&asoc->send_queue) && 1091 TAILQ_EMPTY(&asoc->sent_queue) && 1092 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) { 1093 struct mbuf *op_err; 1094 1095 abort_anyway: 1096 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), 1097 0, M_DONTWAIT, 1, MT_DATA); 1098 if (op_err) { 1099 /* Fill in the user initiated abort */ 1100 struct sctp_paramhdr *ph; 1101 uint32_t *ippp; 1102 1103 SCTP_BUF_LEN(op_err) = 1104 sizeof(struct sctp_paramhdr) + sizeof(uint32_t); 1105 ph = mtod(op_err, 1106 struct sctp_paramhdr *); 1107 ph->param_type = htons( 1108 SCTP_CAUSE_USER_INITIATED_ABT); 1109 ph->param_length = htons(SCTP_BUF_LEN(op_err)); 1110 ippp = (uint32_t *) (ph + 1); 1111 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1112 } 1113#if defined(SCTP_PANIC_ON_ABORT) 1114 panic("shutdown does an abort"); 1115#endif 1116 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6; 1117 sctp_abort_an_association(stcb->sctp_ep, stcb, 1118 SCTP_RESPONSE_TO_USER_REQ, 1119 op_err, SCTP_SO_LOCKED); 1120 goto skip_unlock; 1121 } else { 1122 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); 1123 } 1124 } 1125 SCTP_TCB_UNLOCK(stcb); 1126 } 1127skip_unlock: 1128 SCTP_INP_RUNLOCK(inp); 1129 return 0; 1130} 1131 1132/* 1133 * copies a "user" presentable address and removes embedded scope, etc. 1134 * returns 0 on success, 1 on error 1135 */ 1136static uint32_t 1137sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa) 1138{ 1139#ifdef INET6 1140 struct sockaddr_in6 lsa6; 1141 1142 sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa, 1143 &lsa6); 1144#endif 1145 memcpy(ss, sa, sa->sa_len); 1146 return (0); 1147} 1148 1149 1150 1151/* 1152 * NOTE: assumes addr lock is held 1153 */ 1154static size_t 1155sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp, 1156 struct sctp_tcb *stcb, 1157 size_t limit, 1158 struct sockaddr_storage *sas, 1159 uint32_t vrf_id) 1160{ 1161 struct sctp_ifn *sctp_ifn; 1162 struct sctp_ifa *sctp_ifa; 1163 int loopback_scope, ipv4_local_scope, local_scope, site_scope; 1164 size_t actual; 1165 int ipv4_addr_legal, ipv6_addr_legal; 1166 struct sctp_vrf *vrf; 1167 1168 actual = 0; 1169 if (limit <= 0) 1170 return (actual); 1171 1172 if (stcb) { 1173 /* Turn on all the appropriate scope */ 1174 loopback_scope = stcb->asoc.loopback_scope; 1175 ipv4_local_scope = stcb->asoc.ipv4_local_scope; 1176 local_scope = stcb->asoc.local_scope; 1177 site_scope = stcb->asoc.site_scope; 1178 } else { 1179 /* Turn on ALL scope, since we look at the EP */ 1180 loopback_scope = ipv4_local_scope = local_scope = 1181 site_scope = 1; 1182 } 1183 ipv4_addr_legal = ipv6_addr_legal = 0; 1184 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 1185 ipv6_addr_legal = 1; 1186 if (SCTP_IPV6_V6ONLY(inp) == 0) { 1187 ipv4_addr_legal = 1; 1188 } 1189 } else { 1190 ipv4_addr_legal = 1; 1191 } 1192 vrf = sctp_find_vrf(vrf_id); 1193 if (vrf == NULL) { 1194 return (0); 1195 } 1196 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1197 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1198 if ((loopback_scope == 0) && 1199 SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) { 1200 /* Skip loopback if loopback_scope not set */ 1201 continue; 1202 } 1203 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1204 if (stcb) { 1205 /* 1206 * For the BOUND-ALL case, the list 1207 * associated with a TCB is Always 1208 * considered a reverse list.. i.e. 1209 * it lists addresses that are NOT 1210 * part of the association. If this 1211 * is one of those we must skip it. 1212 */ 1213 if (sctp_is_addr_restricted(stcb, 1214 sctp_ifa)) { 1215 continue; 1216 } 1217 } 1218 switch (sctp_ifa->address.sa.sa_family) { 1219#ifdef INET 1220 case AF_INET: 1221 if (ipv4_addr_legal) { 1222 struct sockaddr_in *sin; 1223 1224 sin = (struct sockaddr_in *)&sctp_ifa->address.sa; 1225 if (sin->sin_addr.s_addr == 0) { 1226 /* 1227 * we skip 1228 * unspecifed 1229 * addresses 1230 */ 1231 continue; 1232 } 1233 if ((ipv4_local_scope == 0) && 1234 (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) { 1235 continue; 1236 } 1237#ifdef INET6 1238 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) { 1239 in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas); 1240 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1241 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6)); 1242 actual += sizeof(struct sockaddr_in6); 1243 } else { 1244#endif 1245 memcpy(sas, sin, sizeof(*sin)); 1246 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport; 1247 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin)); 1248 actual += sizeof(*sin); 1249#ifdef INET6 1250 } 1251#endif 1252 if (actual >= limit) { 1253 return (actual); 1254 } 1255 } else { 1256 continue; 1257 } 1258 break; 1259#endif 1260#ifdef INET6 1261 case AF_INET6: 1262 if (ipv6_addr_legal) { 1263 struct sockaddr_in6 *sin6; 1264 1265 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa; 1266 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 1267 /* 1268 * we skip 1269 * unspecifed 1270 * addresses 1271 */ 1272 continue; 1273 } 1274 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 1275 if (local_scope == 0) 1276 continue; 1277 if (sin6->sin6_scope_id == 0) { 1278 if (sa6_recoverscope(sin6) != 0) 1279 /* 1280 * 1281 * bad 1282 * 1283 * li 1284 * nk 1285 * 1286 * loc 1287 * al 1288 * 1289 * add 1290 * re 1291 * ss 1292 * */ 1293 continue; 1294 } 1295 } 1296 if ((site_scope == 0) && 1297 (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) { 1298 continue; 1299 } 1300 memcpy(sas, sin6, sizeof(*sin6)); 1301 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1302 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6)); 1303 actual += sizeof(*sin6); 1304 if (actual >= limit) { 1305 return (actual); 1306 } 1307 } else { 1308 continue; 1309 } 1310 break; 1311#endif 1312 default: 1313 /* TSNH */ 1314 break; 1315 } 1316 } 1317 } 1318 } else { 1319 struct sctp_laddr *laddr; 1320 1321 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1322 if (stcb) { 1323 if (sctp_is_addr_restricted(stcb, laddr->ifa)) { 1324 continue; 1325 } 1326 } 1327 if (sctp_fill_user_address(sas, &laddr->ifa->address.sa)) 1328 continue; 1329 1330 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; 1331 sas = (struct sockaddr_storage *)((caddr_t)sas + 1332 laddr->ifa->address.sa.sa_len); 1333 actual += laddr->ifa->address.sa.sa_len; 1334 if (actual >= limit) { 1335 return (actual); 1336 } 1337 } 1338 } 1339 return (actual); 1340} 1341 1342static size_t 1343sctp_fill_up_addresses(struct sctp_inpcb *inp, 1344 struct sctp_tcb *stcb, 1345 size_t limit, 1346 struct sockaddr_storage *sas) 1347{ 1348 size_t size = 0; 1349 1350 SCTP_IPI_ADDR_RLOCK(); 1351 /* fill up addresses for the endpoint's default vrf */ 1352 size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas, 1353 inp->def_vrf_id); 1354 SCTP_IPI_ADDR_RUNLOCK(); 1355 return (size); 1356} 1357 1358/* 1359 * NOTE: assumes addr lock is held 1360 */ 1361static int 1362sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id) 1363{ 1364 int cnt = 0; 1365 struct sctp_vrf *vrf = NULL; 1366 1367 /* 1368 * In both sub-set bound an bound_all cases we return the MAXIMUM 1369 * number of addresses that you COULD get. In reality the sub-set 1370 * bound may have an exclusion list for a given TCB OR in the 1371 * bound-all case a TCB may NOT include the loopback or other 1372 * addresses as well. 1373 */ 1374 vrf = sctp_find_vrf(vrf_id); 1375 if (vrf == NULL) { 1376 return (0); 1377 } 1378 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1379 struct sctp_ifn *sctp_ifn; 1380 struct sctp_ifa *sctp_ifa; 1381 1382 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { 1383 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { 1384 /* Count them if they are the right type */ 1385 switch (sctp_ifa->address.sa.sa_family) { 1386#ifdef INET 1387 case AF_INET: 1388 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1389 cnt += sizeof(struct sockaddr_in6); 1390 else 1391 cnt += sizeof(struct sockaddr_in); 1392 break; 1393#endif 1394#ifdef INET6 1395 case AF_INET6: 1396 cnt += sizeof(struct sockaddr_in6); 1397 break; 1398#endif 1399 default: 1400 break; 1401 } 1402 } 1403 } 1404 } else { 1405 struct sctp_laddr *laddr; 1406 1407 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 1408 switch (laddr->ifa->address.sa.sa_family) { 1409#ifdef INET 1410 case AF_INET: 1411 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) 1412 cnt += sizeof(struct sockaddr_in6); 1413 else 1414 cnt += sizeof(struct sockaddr_in); 1415 break; 1416#endif 1417#ifdef INET6 1418 case AF_INET6: 1419 cnt += sizeof(struct sockaddr_in6); 1420 break; 1421#endif 1422 default: 1423 break; 1424 } 1425 } 1426 } 1427 return (cnt); 1428} 1429 1430static int 1431sctp_count_max_addresses(struct sctp_inpcb *inp) 1432{ 1433 int cnt = 0; 1434 1435 SCTP_IPI_ADDR_RLOCK(); 1436 /* count addresses for the endpoint's default VRF */ 1437 cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id); 1438 SCTP_IPI_ADDR_RUNLOCK(); 1439 return (cnt); 1440} 1441 1442static int 1443sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval, 1444 size_t optsize, void *p, int delay) 1445{ 1446 int error = 0; 1447 int creat_lock_on = 0; 1448 struct sctp_tcb *stcb = NULL; 1449 struct sockaddr *sa; 1450 int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr; 1451 uint32_t vrf_id; 1452 int bad_addresses = 0; 1453 sctp_assoc_t *a_id; 1454 1455 SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n"); 1456 1457 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 1458 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 1459 /* We are already connected AND the TCP model */ 1460 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 1461 return (EADDRINUSE); 1462 } 1463 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) && 1464 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) { 1465 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1466 return (EINVAL); 1467 } 1468 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 1469 SCTP_INP_RLOCK(inp); 1470 stcb = LIST_FIRST(&inp->sctp_asoc_list); 1471 SCTP_INP_RUNLOCK(inp); 1472 } 1473 if (stcb) { 1474 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1475 return (EALREADY); 1476 } 1477 SCTP_INP_INCR_REF(inp); 1478 SCTP_ASOC_CREATE_LOCK(inp); 1479 creat_lock_on = 1; 1480 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 1481 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 1482 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 1483 error = EFAULT; 1484 goto out_now; 1485 } 1486 totaddrp = (int *)optval; 1487 totaddr = *totaddrp; 1488 sa = (struct sockaddr *)(totaddrp + 1); 1489 stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses); 1490 if ((stcb != NULL) || bad_addresses) { 1491 /* Already have or am bring up an association */ 1492 SCTP_ASOC_CREATE_UNLOCK(inp); 1493 creat_lock_on = 0; 1494 if (stcb) 1495 SCTP_TCB_UNLOCK(stcb); 1496 if (bad_addresses == 0) { 1497 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 1498 error = EALREADY; 1499 } 1500 goto out_now; 1501 } 1502#ifdef INET6 1503 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 1504 (num_v6 > 0)) { 1505 error = EINVAL; 1506 goto out_now; 1507 } 1508 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && 1509 (num_v4 > 0)) { 1510 struct in6pcb *inp6; 1511 1512 inp6 = (struct in6pcb *)inp; 1513 if (SCTP_IPV6_V6ONLY(inp6)) { 1514 /* 1515 * if IPV6_V6ONLY flag, ignore connections destined 1516 * to a v4 addr or v4-mapped addr 1517 */ 1518 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1519 error = EINVAL; 1520 goto out_now; 1521 } 1522 } 1523#endif /* INET6 */ 1524 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 1525 SCTP_PCB_FLAGS_UNBOUND) { 1526 /* Bind a ephemeral port */ 1527 error = sctp_inpcb_bind(so, NULL, NULL, p); 1528 if (error) { 1529 goto out_now; 1530 } 1531 } 1532 /* FIX ME: do we want to pass in a vrf on the connect call? */ 1533 vrf_id = inp->def_vrf_id; 1534 1535 1536 /* We are GOOD to go */ 1537 stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id, 1538 (struct thread *)p 1539 ); 1540 if (stcb == NULL) { 1541 /* Gak! no memory */ 1542 goto out_now; 1543 } 1544 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 1545 /* move to second address */ 1546 switch (sa->sa_family) { 1547#ifdef INET 1548 case AF_INET: 1549 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in)); 1550 break; 1551#endif 1552#ifdef INET6 1553 case AF_INET6: 1554 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6)); 1555 break; 1556#endif 1557 default: 1558 break; 1559 } 1560 1561 error = 0; 1562 sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error); 1563 /* Fill in the return id */ 1564 if (error) { 1565 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); 1566 goto out_now; 1567 } 1568 a_id = (sctp_assoc_t *) optval; 1569 *a_id = sctp_get_associd(stcb); 1570 1571 /* initialize authentication parameters for the assoc */ 1572 sctp_initialize_auth_params(inp, stcb); 1573 1574 if (delay) { 1575 /* doing delayed connection */ 1576 stcb->asoc.delayed_connection = 1; 1577 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination); 1578 } else { 1579 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 1580 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 1581 } 1582 SCTP_TCB_UNLOCK(stcb); 1583 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 1584 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 1585 /* Set the connected flag so we can queue data */ 1586 soisconnecting(so); 1587 } 1588out_now: 1589 if (creat_lock_on) { 1590 SCTP_ASOC_CREATE_UNLOCK(inp); 1591 } 1592 SCTP_INP_DECR_REF(inp); 1593 return error; 1594} 1595 1596#define SCTP_FIND_STCB(inp, stcb, assoc_id) { \ 1597 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\ 1598 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \ 1599 SCTP_INP_RLOCK(inp); \ 1600 stcb = LIST_FIRST(&inp->sctp_asoc_list); \ 1601 if (stcb) { \ 1602 SCTP_TCB_LOCK(stcb); \ 1603 } \ 1604 SCTP_INP_RUNLOCK(inp); \ 1605 } else if (assoc_id > SCTP_ALL_ASSOC) { \ 1606 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \ 1607 if (stcb == NULL) { \ 1608 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \ 1609 error = ENOENT; \ 1610 break; \ 1611 } \ 1612 } else { \ 1613 stcb = NULL; \ 1614 } \ 1615 } 1616 1617 1618#define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\ 1619 if (size < sizeof(type)) { \ 1620 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \ 1621 error = EINVAL; \ 1622 break; \ 1623 } else { \ 1624 destp = (type *)srcp; \ 1625 } \ 1626 } 1627 1628static int 1629sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize, 1630 void *p) 1631{ 1632 struct sctp_inpcb *inp = NULL; 1633 int error, val = 0; 1634 struct sctp_tcb *stcb = NULL; 1635 1636 if (optval == NULL) { 1637 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1638 return (EINVAL); 1639 } 1640 inp = (struct sctp_inpcb *)so->so_pcb; 1641 if (inp == 0) { 1642 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1643 return EINVAL; 1644 } 1645 error = 0; 1646 1647 switch (optname) { 1648 case SCTP_NODELAY: 1649 case SCTP_AUTOCLOSE: 1650 case SCTP_EXPLICIT_EOR: 1651 case SCTP_AUTO_ASCONF: 1652 case SCTP_DISABLE_FRAGMENTS: 1653 case SCTP_I_WANT_MAPPED_V4_ADDR: 1654 case SCTP_USE_EXT_RCVINFO: 1655 SCTP_INP_RLOCK(inp); 1656 switch (optname) { 1657 case SCTP_DISABLE_FRAGMENTS: 1658 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT); 1659 break; 1660 case SCTP_I_WANT_MAPPED_V4_ADDR: 1661 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4); 1662 break; 1663 case SCTP_AUTO_ASCONF: 1664 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 1665 /* only valid for bound all sockets */ 1666 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF); 1667 } else { 1668 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1669 error = EINVAL; 1670 goto flags_out; 1671 } 1672 break; 1673 case SCTP_EXPLICIT_EOR: 1674 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR); 1675 break; 1676 case SCTP_NODELAY: 1677 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY); 1678 break; 1679 case SCTP_USE_EXT_RCVINFO: 1680 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO); 1681 break; 1682 case SCTP_AUTOCLOSE: 1683 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE)) 1684 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time); 1685 else 1686 val = 0; 1687 break; 1688 1689 default: 1690 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 1691 error = ENOPROTOOPT; 1692 } /* end switch (sopt->sopt_name) */ 1693 if (*optsize < sizeof(val)) { 1694 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1695 error = EINVAL; 1696 } 1697flags_out: 1698 SCTP_INP_RUNLOCK(inp); 1699 if (error == 0) { 1700 /* return the option value */ 1701 *(int *)optval = val; 1702 *optsize = sizeof(val); 1703 } 1704 break; 1705 case SCTP_GET_PACKET_LOG: 1706 { 1707#ifdef SCTP_PACKET_LOGGING 1708 uint8_t *target; 1709 int ret; 1710 1711 SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize); 1712 ret = sctp_copy_out_packet_log(target, (int)*optsize); 1713 *optsize = ret; 1714#else 1715 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1716 error = EOPNOTSUPP; 1717#endif 1718 break; 1719 } 1720 case SCTP_REUSE_PORT: 1721 { 1722 uint32_t *value; 1723 1724 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) { 1725 /* Can't do this for a 1-m socket */ 1726 error = EINVAL; 1727 break; 1728 } 1729 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1730 *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE); 1731 *optsize = sizeof(uint32_t); 1732 break; 1733 } 1734 case SCTP_PARTIAL_DELIVERY_POINT: 1735 { 1736 uint32_t *value; 1737 1738 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1739 *value = inp->partial_delivery_point; 1740 *optsize = sizeof(uint32_t); 1741 break; 1742 } 1743 case SCTP_FRAGMENT_INTERLEAVE: 1744 { 1745 uint32_t *value; 1746 1747 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1748 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) { 1749 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) { 1750 *value = SCTP_FRAG_LEVEL_2; 1751 } else { 1752 *value = SCTP_FRAG_LEVEL_1; 1753 } 1754 } else { 1755 *value = SCTP_FRAG_LEVEL_0; 1756 } 1757 *optsize = sizeof(uint32_t); 1758 break; 1759 } 1760 case SCTP_CMT_ON_OFF: 1761 { 1762 struct sctp_assoc_value *av; 1763 1764 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1765 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1766 if (stcb) { 1767 av->assoc_value = stcb->asoc.sctp_cmt_on_off; 1768 SCTP_TCB_UNLOCK(stcb); 1769 } else { 1770 if (av->assoc_id == SCTP_FUTURE_ASSOC) { 1771 SCTP_INP_RLOCK(inp); 1772 av->assoc_value = inp->sctp_cmt_on_off; 1773 SCTP_INP_RUNLOCK(inp); 1774 } else { 1775 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1776 error = EINVAL; 1777 } 1778 } 1779 if (error == 0) { 1780 *optsize = sizeof(struct sctp_assoc_value); 1781 } 1782 break; 1783 } 1784 case SCTP_PLUGGABLE_CC: 1785 { 1786 struct sctp_assoc_value *av; 1787 1788 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1789 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1790 if (stcb) { 1791 av->assoc_value = stcb->asoc.congestion_control_module; 1792 SCTP_TCB_UNLOCK(stcb); 1793 } else { 1794 if (av->assoc_id == SCTP_FUTURE_ASSOC) { 1795 SCTP_INP_RLOCK(inp); 1796 av->assoc_value = inp->sctp_ep.sctp_default_cc_module; 1797 SCTP_INP_RUNLOCK(inp); 1798 } else { 1799 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1800 error = EINVAL; 1801 } 1802 } 1803 if (error == 0) { 1804 *optsize = sizeof(struct sctp_assoc_value); 1805 } 1806 break; 1807 } 1808 case SCTP_CC_OPTION: 1809 { 1810 struct sctp_cc_option *cc_opt; 1811 1812 SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize); 1813 SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id); 1814 if (stcb == NULL) { 1815 error = EINVAL; 1816 } else { 1817 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) { 1818 error = ENOTSUP; 1819 } else { 1820 error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt); 1821 *optsize = sizeof(struct sctp_cc_option); 1822 } 1823 SCTP_TCB_UNLOCK(stcb); 1824 } 1825 break; 1826 } 1827 case SCTP_PLUGGABLE_SS: 1828 { 1829 struct sctp_assoc_value *av; 1830 1831 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1832 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1833 if (stcb) { 1834 av->assoc_value = stcb->asoc.stream_scheduling_module; 1835 SCTP_TCB_UNLOCK(stcb); 1836 } else { 1837 if (av->assoc_id == SCTP_FUTURE_ASSOC) { 1838 SCTP_INP_RLOCK(inp); 1839 av->assoc_value = inp->sctp_ep.sctp_default_ss_module; 1840 SCTP_INP_RUNLOCK(inp); 1841 } else { 1842 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1843 error = EINVAL; 1844 } 1845 } 1846 if (error == 0) { 1847 *optsize = sizeof(struct sctp_assoc_value); 1848 } 1849 break; 1850 } 1851 case SCTP_SS_VALUE: 1852 { 1853 struct sctp_stream_value *av; 1854 1855 SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize); 1856 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1857 if (stcb) { 1858 if (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id], 1859 &av->stream_value) < 0) { 1860 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1861 error = EINVAL; 1862 } else { 1863 *optsize = sizeof(struct sctp_stream_value); 1864 } 1865 SCTP_TCB_UNLOCK(stcb); 1866 } else { 1867 /* 1868 * Can't get stream value without 1869 * association 1870 */ 1871 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1872 error = EINVAL; 1873 } 1874 break; 1875 } 1876 case SCTP_GET_ADDR_LEN: 1877 { 1878 struct sctp_assoc_value *av; 1879 1880 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1881 error = EINVAL; 1882#ifdef INET 1883 if (av->assoc_value == AF_INET) { 1884 av->assoc_value = sizeof(struct sockaddr_in); 1885 error = 0; 1886 } 1887#endif 1888#ifdef INET6 1889 if (av->assoc_value == AF_INET6) { 1890 av->assoc_value = sizeof(struct sockaddr_in6); 1891 error = 0; 1892 } 1893#endif 1894 if (error) { 1895 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1896 } else { 1897 *optsize = sizeof(struct sctp_assoc_value); 1898 } 1899 break; 1900 } 1901 case SCTP_GET_ASSOC_NUMBER: 1902 { 1903 uint32_t *value, cnt; 1904 1905 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 1906 cnt = 0; 1907 SCTP_INP_RLOCK(inp); 1908 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1909 cnt++; 1910 } 1911 SCTP_INP_RUNLOCK(inp); 1912 *value = cnt; 1913 *optsize = sizeof(uint32_t); 1914 break; 1915 } 1916 case SCTP_GET_ASSOC_ID_LIST: 1917 { 1918 struct sctp_assoc_ids *ids; 1919 unsigned int at, limit; 1920 1921 SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize); 1922 at = 0; 1923 limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t); 1924 SCTP_INP_RLOCK(inp); 1925 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 1926 if (at < limit) { 1927 ids->gaids_assoc_id[at++] = sctp_get_associd(stcb); 1928 } else { 1929 error = EINVAL; 1930 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1931 break; 1932 } 1933 } 1934 SCTP_INP_RUNLOCK(inp); 1935 if (error == 0) { 1936 ids->gaids_number_of_ids = at; 1937 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t)); 1938 } 1939 break; 1940 } 1941 case SCTP_CONTEXT: 1942 { 1943 struct sctp_assoc_value *av; 1944 1945 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 1946 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 1947 1948 if (stcb) { 1949 av->assoc_value = stcb->asoc.context; 1950 SCTP_TCB_UNLOCK(stcb); 1951 } else { 1952 if (av->assoc_id == SCTP_FUTURE_ASSOC) { 1953 SCTP_INP_RLOCK(inp); 1954 av->assoc_value = inp->sctp_context; 1955 SCTP_INP_RUNLOCK(inp); 1956 } else { 1957 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 1958 error = EINVAL; 1959 } 1960 } 1961 if (error == 0) { 1962 *optsize = sizeof(struct sctp_assoc_value); 1963 } 1964 break; 1965 } 1966 case SCTP_VRF_ID: 1967 { 1968 uint32_t *default_vrfid; 1969 1970 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize); 1971 *default_vrfid = inp->def_vrf_id; 1972 *optsize = sizeof(uint32_t); 1973 break; 1974 } 1975 case SCTP_GET_ASOC_VRF: 1976 { 1977 struct sctp_assoc_value *id; 1978 1979 SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize); 1980 SCTP_FIND_STCB(inp, stcb, id->assoc_id); 1981 if (stcb == NULL) { 1982 error = EINVAL; 1983 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 1984 } else { 1985 id->assoc_value = stcb->asoc.vrf_id; 1986 *optsize = sizeof(struct sctp_assoc_value); 1987 } 1988 break; 1989 } 1990 case SCTP_GET_VRF_IDS: 1991 { 1992 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 1993 error = EOPNOTSUPP; 1994 break; 1995 } 1996 case SCTP_GET_NONCE_VALUES: 1997 { 1998 struct sctp_get_nonce_values *gnv; 1999 2000 SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize); 2001 SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id); 2002 2003 if (stcb) { 2004 gnv->gn_peers_tag = stcb->asoc.peer_vtag; 2005 gnv->gn_local_tag = stcb->asoc.my_vtag; 2006 SCTP_TCB_UNLOCK(stcb); 2007 *optsize = sizeof(struct sctp_get_nonce_values); 2008 } else { 2009 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2010 error = ENOTCONN; 2011 } 2012 break; 2013 } 2014 case SCTP_DELAYED_SACK: 2015 { 2016 struct sctp_sack_info *sack; 2017 2018 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize); 2019 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 2020 if (stcb) { 2021 sack->sack_delay = stcb->asoc.delayed_ack; 2022 sack->sack_freq = stcb->asoc.sack_freq; 2023 SCTP_TCB_UNLOCK(stcb); 2024 } else { 2025 if (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) { 2026 SCTP_INP_RLOCK(inp); 2027 sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]); 2028 sack->sack_freq = inp->sctp_ep.sctp_sack_freq; 2029 SCTP_INP_RUNLOCK(inp); 2030 } else { 2031 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2032 error = EINVAL; 2033 } 2034 } 2035 if (error == 0) { 2036 *optsize = sizeof(struct sctp_sack_info); 2037 } 2038 break; 2039 } 2040 case SCTP_GET_SNDBUF_USE: 2041 { 2042 struct sctp_sockstat *ss; 2043 2044 SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize); 2045 SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id); 2046 2047 if (stcb) { 2048 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size; 2049 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue + 2050 stcb->asoc.size_on_all_streams); 2051 SCTP_TCB_UNLOCK(stcb); 2052 *optsize = sizeof(struct sctp_sockstat); 2053 } else { 2054 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2055 error = ENOTCONN; 2056 } 2057 break; 2058 } 2059 case SCTP_MAX_BURST: 2060 { 2061 struct sctp_assoc_value *av; 2062 2063 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 2064 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2065 2066 if (stcb) { 2067 av->assoc_value = stcb->asoc.max_burst; 2068 SCTP_TCB_UNLOCK(stcb); 2069 } else { 2070 if (av->assoc_id == SCTP_FUTURE_ASSOC) { 2071 SCTP_INP_RLOCK(inp); 2072 av->assoc_value = inp->sctp_ep.max_burst; 2073 SCTP_INP_RUNLOCK(inp); 2074 } else { 2075 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2076 error = EINVAL; 2077 } 2078 } 2079 if (error == 0) { 2080 *optsize = sizeof(struct sctp_assoc_value); 2081 } 2082 break; 2083 } 2084 case SCTP_MAXSEG: 2085 { 2086 struct sctp_assoc_value *av; 2087 int ovh; 2088 2089 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize); 2090 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 2091 2092 if (stcb) { 2093 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc); 2094 SCTP_TCB_UNLOCK(stcb); 2095 } else { 2096 if (av->assoc_id == SCTP_FUTURE_ASSOC) { 2097 SCTP_INP_RLOCK(inp); 2098 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2099 ovh = SCTP_MED_OVERHEAD; 2100 } else { 2101 ovh = SCTP_MED_V4_OVERHEAD; 2102 } 2103 if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT) 2104 av->assoc_value = 0; 2105 else 2106 av->assoc_value = inp->sctp_frag_point - ovh; 2107 SCTP_INP_RUNLOCK(inp); 2108 } else { 2109 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2110 error = EINVAL; 2111 } 2112 } 2113 if (error == 0) { 2114 *optsize = sizeof(struct sctp_assoc_value); 2115 } 2116 break; 2117 } 2118 case SCTP_GET_STAT_LOG: 2119 error = sctp_fill_stat_log(optval, optsize); 2120 break; 2121 case SCTP_EVENTS: 2122 { 2123 struct sctp_event_subscribe *events; 2124 2125 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize); 2126 memset(events, 0, sizeof(struct sctp_event_subscribe)); 2127 SCTP_INP_RLOCK(inp); 2128 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT)) 2129 events->sctp_data_io_event = 1; 2130 2131 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT)) 2132 events->sctp_association_event = 1; 2133 2134 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT)) 2135 events->sctp_address_event = 1; 2136 2137 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT)) 2138 events->sctp_send_failure_event = 1; 2139 2140 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR)) 2141 events->sctp_peer_error_event = 1; 2142 2143 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT)) 2144 events->sctp_shutdown_event = 1; 2145 2146 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT)) 2147 events->sctp_partial_delivery_event = 1; 2148 2149 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT)) 2150 events->sctp_adaptation_layer_event = 1; 2151 2152 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT)) 2153 events->sctp_authentication_event = 1; 2154 2155 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT)) 2156 events->sctp_sender_dry_event = 1; 2157 2158 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT)) 2159 events->sctp_stream_reset_event = 1; 2160 SCTP_INP_RUNLOCK(inp); 2161 *optsize = sizeof(struct sctp_event_subscribe); 2162 break; 2163 } 2164 case SCTP_ADAPTATION_LAYER: 2165 { 2166 uint32_t *value; 2167 2168 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2169 2170 SCTP_INP_RLOCK(inp); 2171 *value = inp->sctp_ep.adaptation_layer_indicator; 2172 SCTP_INP_RUNLOCK(inp); 2173 *optsize = sizeof(uint32_t); 2174 break; 2175 } 2176 case SCTP_SET_INITIAL_DBG_SEQ: 2177 { 2178 uint32_t *value; 2179 2180 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2181 SCTP_INP_RLOCK(inp); 2182 *value = inp->sctp_ep.initial_sequence_debug; 2183 SCTP_INP_RUNLOCK(inp); 2184 *optsize = sizeof(uint32_t); 2185 break; 2186 } 2187 case SCTP_GET_LOCAL_ADDR_SIZE: 2188 { 2189 uint32_t *value; 2190 2191 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2192 SCTP_INP_RLOCK(inp); 2193 *value = sctp_count_max_addresses(inp); 2194 SCTP_INP_RUNLOCK(inp); 2195 *optsize = sizeof(uint32_t); 2196 break; 2197 } 2198 case SCTP_GET_REMOTE_ADDR_SIZE: 2199 { 2200 uint32_t *value; 2201 size_t size; 2202 struct sctp_nets *net; 2203 2204 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); 2205 /* FIXME MT: change to sctp_assoc_value? */ 2206 SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value); 2207 2208 if (stcb) { 2209 size = 0; 2210 /* Count the sizes */ 2211 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2212 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) { 2213 size += sizeof(struct sockaddr_in6); 2214 } else { 2215 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) { 2216#ifdef INET 2217 case AF_INET: 2218 size += sizeof(struct sockaddr_in); 2219 break; 2220#endif 2221#ifdef INET6 2222 case AF_INET6: 2223 size += sizeof(struct sockaddr_in6); 2224 break; 2225#endif 2226 default: 2227 break; 2228 } 2229 } 2230 } 2231 SCTP_TCB_UNLOCK(stcb); 2232 *value = (uint32_t) size; 2233 *optsize = sizeof(uint32_t); 2234 } else { 2235 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 2236 error = ENOTCONN; 2237 } 2238 break; 2239 } 2240 case SCTP_GET_PEER_ADDRESSES: 2241 /* 2242 * Get the address information, an array is passed in to 2243 * fill up we pack it. 2244 */ 2245 { 2246 size_t cpsz, left; 2247 struct sockaddr_storage *sas; 2248 struct sctp_nets *net; 2249 struct sctp_getaddresses *saddr; 2250 2251 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2252 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2253 2254 if (stcb) { 2255 left = (*optsize) - sizeof(struct sctp_getaddresses); 2256 *optsize = sizeof(struct sctp_getaddresses); 2257 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2258 2259 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2260 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) { 2261 cpsz = sizeof(struct sockaddr_in6); 2262 } else { 2263 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) { 2264#ifdef INET 2265 case AF_INET: 2266 cpsz = sizeof(struct sockaddr_in); 2267 break; 2268#endif 2269#ifdef INET6 2270 case AF_INET6: 2271 cpsz = sizeof(struct sockaddr_in6); 2272 break; 2273#endif 2274 default: 2275 cpsz = 0; 2276 break; 2277 } 2278 } 2279 if (cpsz == 0) { 2280 break; 2281 } 2282 if (left < cpsz) { 2283 /* not enough room. */ 2284 break; 2285 } 2286#if defined(INET) && defined(INET6) 2287 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) && 2288 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) { 2289 /* Must map the address */ 2290 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr, 2291 (struct sockaddr_in6 *)sas); 2292 } else { 2293#endif 2294 memcpy(sas, &net->ro._l_addr, cpsz); 2295#if defined(INET) && defined(INET6) 2296 } 2297#endif 2298 ((struct sockaddr_in *)sas)->sin_port = stcb->rport; 2299 2300 sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz); 2301 left -= cpsz; 2302 *optsize += cpsz; 2303 } 2304 SCTP_TCB_UNLOCK(stcb); 2305 } else { 2306 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2307 error = ENOENT; 2308 } 2309 break; 2310 } 2311 case SCTP_GET_LOCAL_ADDRESSES: 2312 { 2313 size_t limit, actual; 2314 struct sockaddr_storage *sas; 2315 struct sctp_getaddresses *saddr; 2316 2317 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); 2318 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); 2319 2320 sas = (struct sockaddr_storage *)&saddr->addr[0]; 2321 limit = *optsize - sizeof(sctp_assoc_t); 2322 actual = sctp_fill_up_addresses(inp, stcb, limit, sas); 2323 if (stcb) { 2324 SCTP_TCB_UNLOCK(stcb); 2325 } 2326 *optsize = sizeof(struct sockaddr_storage) + actual; 2327 break; 2328 } 2329 case SCTP_PEER_ADDR_PARAMS: 2330 { 2331 struct sctp_paddrparams *paddrp; 2332 struct sctp_nets *net; 2333 2334 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize); 2335 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 2336 2337 net = NULL; 2338 if (stcb) { 2339 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 2340 } else { 2341 /* 2342 * We increment here since 2343 * sctp_findassociation_ep_addr() wil do a 2344 * decrement if it finds the stcb as long as 2345 * the locked tcb (last argument) is NOT a 2346 * TCB.. aka NULL. 2347 */ 2348 SCTP_INP_INCR_REF(inp); 2349 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL); 2350 if (stcb == NULL) { 2351 SCTP_INP_DECR_REF(inp); 2352 } 2353 } 2354 if (stcb && (net == NULL)) { 2355 struct sockaddr *sa; 2356 2357 sa = (struct sockaddr *)&paddrp->spp_address; 2358#ifdef INET 2359 if (sa->sa_family == AF_INET) { 2360 struct sockaddr_in *sin; 2361 2362 sin = (struct sockaddr_in *)sa; 2363 if (sin->sin_addr.s_addr) { 2364 error = EINVAL; 2365 SCTP_TCB_UNLOCK(stcb); 2366 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2367 break; 2368 } 2369 } else 2370#endif 2371#ifdef INET6 2372 if (sa->sa_family == AF_INET6) { 2373 struct sockaddr_in6 *sin6; 2374 2375 sin6 = (struct sockaddr_in6 *)sa; 2376 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 2377 error = EINVAL; 2378 SCTP_TCB_UNLOCK(stcb); 2379 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2380 break; 2381 } 2382 } else 2383#endif 2384 { 2385 error = EAFNOSUPPORT; 2386 SCTP_TCB_UNLOCK(stcb); 2387 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2388 break; 2389 } 2390 } 2391 if (stcb) { 2392 /* Applys to the specific association */ 2393 paddrp->spp_flags = 0; 2394 if (net) { 2395 int ovh; 2396 2397 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2398 ovh = SCTP_MED_OVERHEAD; 2399 } else { 2400 ovh = SCTP_MED_V4_OVERHEAD; 2401 } 2402 2403 2404 paddrp->spp_pathmaxrxt = net->failure_threshold; 2405 paddrp->spp_pathmtu = net->mtu - ovh; 2406 /* get flags for HB */ 2407 if (net->dest_state & SCTP_ADDR_NOHB) 2408 paddrp->spp_flags |= SPP_HB_DISABLE; 2409 else 2410 paddrp->spp_flags |= SPP_HB_ENABLE; 2411 /* get flags for PMTU */ 2412 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2413 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2414 } else { 2415 paddrp->spp_flags |= SPP_PMTUD_DISABLE; 2416 } 2417#ifdef INET 2418 if (net->ro._l_addr.sin.sin_family == AF_INET) { 2419 paddrp->spp_ipv4_tos = net->tos_flowlabel & 0x000000fc; 2420 paddrp->spp_flags |= SPP_IPV4_TOS; 2421 } 2422#endif 2423#ifdef INET6 2424 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 2425 paddrp->spp_ipv6_flowlabel = net->tos_flowlabel; 2426 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2427 } 2428#endif 2429 } else { 2430 /* 2431 * No destination so return default 2432 * value 2433 */ 2434 int cnt = 0; 2435 2436 paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure; 2437 paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc); 2438#ifdef INET 2439 paddrp->spp_ipv4_tos = stcb->asoc.default_tos & 0x000000fc; 2440 paddrp->spp_flags |= SPP_IPV4_TOS; 2441#endif 2442#ifdef INET6 2443 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel; 2444 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2445#endif 2446 /* default settings should be these */ 2447 if (stcb->asoc.hb_is_disabled == 0) { 2448 paddrp->spp_flags |= SPP_HB_ENABLE; 2449 } else { 2450 paddrp->spp_flags |= SPP_HB_DISABLE; 2451 } 2452 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 2453 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 2454 cnt++; 2455 } 2456 } 2457 if (cnt) { 2458 paddrp->spp_flags |= SPP_PMTUD_ENABLE; 2459 } 2460 } 2461 paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay; 2462 paddrp->spp_assoc_id = sctp_get_associd(stcb); 2463 SCTP_TCB_UNLOCK(stcb); 2464 } else { 2465 if (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC) { 2466 /* Use endpoint defaults */ 2467 SCTP_INP_RLOCK(inp); 2468 paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure; 2469 paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]); 2470 paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC; 2471 /* get inp's default */ 2472#ifdef INET 2473 paddrp->spp_ipv4_tos = inp->ip_inp.inp.inp_ip_tos; 2474 paddrp->spp_flags |= SPP_IPV4_TOS; 2475#endif 2476#ifdef INET6 2477 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 2478 paddrp->spp_ipv6_flowlabel = ((struct in6pcb *)inp)->in6p_flowinfo; 2479 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; 2480 } 2481#endif 2482 /* can't return this */ 2483 paddrp->spp_pathmtu = 0; 2484 2485 /* default behavior, no stcb */ 2486 paddrp->spp_flags = SPP_PMTUD_ENABLE; 2487 2488 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) { 2489 paddrp->spp_flags |= SPP_HB_ENABLE; 2490 } else { 2491 paddrp->spp_flags |= SPP_HB_DISABLE; 2492 } 2493 SCTP_INP_RUNLOCK(inp); 2494 } else { 2495 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2496 error = EINVAL; 2497 } 2498 } 2499 if (error == 0) { 2500 *optsize = sizeof(struct sctp_paddrparams); 2501 } 2502 break; 2503 } 2504 case SCTP_GET_PEER_ADDR_INFO: 2505 { 2506 struct sctp_paddrinfo *paddri; 2507 struct sctp_nets *net; 2508 2509 SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize); 2510 SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id); 2511 2512 net = NULL; 2513 if (stcb) { 2514 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address); 2515 } else { 2516 /* 2517 * We increment here since 2518 * sctp_findassociation_ep_addr() wil do a 2519 * decrement if it finds the stcb as long as 2520 * the locked tcb (last argument) is NOT a 2521 * TCB.. aka NULL. 2522 */ 2523 SCTP_INP_INCR_REF(inp); 2524 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL); 2525 if (stcb == NULL) { 2526 SCTP_INP_DECR_REF(inp); 2527 } 2528 } 2529 2530 if ((stcb) && (net)) { 2531 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) { 2532 /* It's unconfirmed */ 2533 paddri->spinfo_state = SCTP_UNCONFIRMED; 2534 } else if (net->dest_state & SCTP_ADDR_REACHABLE) { 2535 /* It's active */ 2536 paddri->spinfo_state = SCTP_ACTIVE; 2537 } else { 2538 /* It's inactive */ 2539 paddri->spinfo_state = SCTP_INACTIVE; 2540 } 2541 paddri->spinfo_cwnd = net->cwnd; 2542 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT; 2543 paddri->spinfo_rto = net->RTO; 2544 paddri->spinfo_assoc_id = sctp_get_associd(stcb); 2545 paddri->spinfo_mtu = net->mtu; 2546 SCTP_TCB_UNLOCK(stcb); 2547 *optsize = sizeof(struct sctp_paddrinfo); 2548 } else { 2549 if (stcb) { 2550 SCTP_TCB_UNLOCK(stcb); 2551 } 2552 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2553 error = ENOENT; 2554 } 2555 break; 2556 } 2557 case SCTP_PCB_STATUS: 2558 { 2559 struct sctp_pcbinfo *spcb; 2560 2561 SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize); 2562 sctp_fill_pcbinfo(spcb); 2563 *optsize = sizeof(struct sctp_pcbinfo); 2564 break; 2565 } 2566 case SCTP_STATUS: 2567 { 2568 struct sctp_nets *net; 2569 struct sctp_status *sstat; 2570 2571 SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize); 2572 SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id); 2573 2574 if (stcb == NULL) { 2575 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2576 error = EINVAL; 2577 break; 2578 } 2579 /* 2580 * I think passing the state is fine since 2581 * sctp_constants.h will be available to the user 2582 * land. 2583 */ 2584 sstat->sstat_state = stcb->asoc.state; 2585 sstat->sstat_assoc_id = sctp_get_associd(stcb); 2586 sstat->sstat_rwnd = stcb->asoc.peers_rwnd; 2587 sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt; 2588 /* 2589 * We can't include chunks that have been passed to 2590 * the socket layer. Only things in queue. 2591 */ 2592 sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue + 2593 stcb->asoc.cnt_on_all_streams); 2594 2595 2596 sstat->sstat_instrms = stcb->asoc.streamincnt; 2597 sstat->sstat_outstrms = stcb->asoc.streamoutcnt; 2598 sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc); 2599 memcpy(&sstat->sstat_primary.spinfo_address, 2600 &stcb->asoc.primary_destination->ro._l_addr, 2601 ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len); 2602 net = stcb->asoc.primary_destination; 2603 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport; 2604 /* 2605 * Again the user can get info from sctp_constants.h 2606 * for what the state of the network is. 2607 */ 2608 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) { 2609 /* It's unconfirmed */ 2610 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED; 2611 } else if (net->dest_state & SCTP_ADDR_REACHABLE) { 2612 /* It's active */ 2613 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE; 2614 } else { 2615 /* It's inactive */ 2616 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE; 2617 } 2618 sstat->sstat_primary.spinfo_cwnd = net->cwnd; 2619 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT; 2620 sstat->sstat_primary.spinfo_rto = net->RTO; 2621 sstat->sstat_primary.spinfo_mtu = net->mtu; 2622 sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb); 2623 SCTP_TCB_UNLOCK(stcb); 2624 *optsize = sizeof(struct sctp_status); 2625 break; 2626 } 2627 case SCTP_RTOINFO: 2628 { 2629 struct sctp_rtoinfo *srto; 2630 2631 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize); 2632 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 2633 2634 if (stcb) { 2635 srto->srto_initial = stcb->asoc.initial_rto; 2636 srto->srto_max = stcb->asoc.maxrto; 2637 srto->srto_min = stcb->asoc.minrto; 2638 SCTP_TCB_UNLOCK(stcb); 2639 } else { 2640 if (srto->srto_assoc_id == SCTP_FUTURE_ASSOC) { 2641 SCTP_INP_RLOCK(inp); 2642 srto->srto_initial = inp->sctp_ep.initial_rto; 2643 srto->srto_max = inp->sctp_ep.sctp_maxrto; 2644 srto->srto_min = inp->sctp_ep.sctp_minrto; 2645 SCTP_INP_RUNLOCK(inp); 2646 } else { 2647 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2648 error = EINVAL; 2649 } 2650 } 2651 if (error == 0) { 2652 *optsize = sizeof(struct sctp_rtoinfo); 2653 } 2654 break; 2655 } 2656 case SCTP_TIMEOUTS: 2657 { 2658 struct sctp_timeouts *stimo; 2659 2660 SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize); 2661 SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id); 2662 2663 if (stcb) { 2664 stimo->stimo_init = stcb->asoc.timoinit; 2665 stimo->stimo_data = stcb->asoc.timodata; 2666 stimo->stimo_sack = stcb->asoc.timosack; 2667 stimo->stimo_shutdown = stcb->asoc.timoshutdown; 2668 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat; 2669 stimo->stimo_cookie = stcb->asoc.timocookie; 2670 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack; 2671 SCTP_TCB_UNLOCK(stcb); 2672 *optsize = sizeof(struct sctp_timeouts); 2673 } else { 2674 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2675 error = EINVAL; 2676 } 2677 break; 2678 } 2679 case SCTP_ASSOCINFO: 2680 { 2681 struct sctp_assocparams *sasoc; 2682 2683 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize); 2684 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 2685 2686 if (stcb) { 2687 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life); 2688 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times; 2689 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; 2690 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd; 2691 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd; 2692 SCTP_TCB_UNLOCK(stcb); 2693 } else { 2694 if (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC) { 2695 SCTP_INP_RLOCK(inp); 2696 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life); 2697 sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times; 2698 sasoc->sasoc_number_peer_destinations = 0; 2699 sasoc->sasoc_peer_rwnd = 0; 2700 sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv); 2701 SCTP_INP_RUNLOCK(inp); 2702 } else { 2703 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2704 error = EINVAL; 2705 } 2706 } 2707 if (error == 0) { 2708 *optsize = sizeof(struct sctp_assocparams); 2709 } 2710 break; 2711 } 2712 case SCTP_DEFAULT_SEND_PARAM: 2713 { 2714 struct sctp_sndrcvinfo *s_info; 2715 2716 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize); 2717 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 2718 2719 if (stcb) { 2720 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send)); 2721 SCTP_TCB_UNLOCK(stcb); 2722 } else { 2723 if (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) { 2724 SCTP_INP_RLOCK(inp); 2725 memcpy(s_info, &inp->def_send, sizeof(inp->def_send)); 2726 SCTP_INP_RUNLOCK(inp); 2727 } else { 2728 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2729 error = EINVAL; 2730 } 2731 } 2732 if (error == 0) { 2733 *optsize = sizeof(struct sctp_sndrcvinfo); 2734 } 2735 break; 2736 } 2737 case SCTP_INITMSG: 2738 { 2739 struct sctp_initmsg *sinit; 2740 2741 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize); 2742 SCTP_INP_RLOCK(inp); 2743 sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count; 2744 sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome; 2745 sinit->sinit_max_attempts = inp->sctp_ep.max_init_times; 2746 sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max; 2747 SCTP_INP_RUNLOCK(inp); 2748 *optsize = sizeof(struct sctp_initmsg); 2749 break; 2750 } 2751 case SCTP_PRIMARY_ADDR: 2752 /* we allow a "get" operation on this */ 2753 { 2754 struct sctp_setprim *ssp; 2755 2756 SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize); 2757 SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id); 2758 2759 if (stcb) { 2760 /* simply copy out the sockaddr_storage... */ 2761 int len; 2762 2763 len = *optsize; 2764 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len) 2765 len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len; 2766 2767 memcpy(&ssp->ssp_addr, 2768 &stcb->asoc.primary_destination->ro._l_addr, 2769 len); 2770 SCTP_TCB_UNLOCK(stcb); 2771 *optsize = sizeof(struct sctp_setprim); 2772 } else { 2773 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2774 error = EINVAL; 2775 } 2776 break; 2777 } 2778 case SCTP_HMAC_IDENT: 2779 { 2780 struct sctp_hmacalgo *shmac; 2781 sctp_hmaclist_t *hmaclist; 2782 uint32_t size; 2783 int i; 2784 2785 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize); 2786 2787 SCTP_INP_RLOCK(inp); 2788 hmaclist = inp->sctp_ep.local_hmacs; 2789 if (hmaclist == NULL) { 2790 /* no HMACs to return */ 2791 *optsize = sizeof(*shmac); 2792 SCTP_INP_RUNLOCK(inp); 2793 break; 2794 } 2795 /* is there room for all of the hmac ids? */ 2796 size = sizeof(*shmac) + (hmaclist->num_algo * 2797 sizeof(shmac->shmac_idents[0])); 2798 if ((size_t)(*optsize) < size) { 2799 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2800 error = EINVAL; 2801 SCTP_INP_RUNLOCK(inp); 2802 break; 2803 } 2804 /* copy in the list */ 2805 shmac->shmac_number_of_idents = hmaclist->num_algo; 2806 for (i = 0; i < hmaclist->num_algo; i++) { 2807 shmac->shmac_idents[i] = hmaclist->hmac[i]; 2808 } 2809 SCTP_INP_RUNLOCK(inp); 2810 *optsize = size; 2811 break; 2812 } 2813 case SCTP_AUTH_ACTIVE_KEY: 2814 { 2815 struct sctp_authkeyid *scact; 2816 2817 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize); 2818 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 2819 2820 if (stcb) { 2821 /* get the active key on the assoc */ 2822 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid; 2823 SCTP_TCB_UNLOCK(stcb); 2824 } else { 2825 if (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) { 2826 /* get the endpoint active key */ 2827 SCTP_INP_RLOCK(inp); 2828 scact->scact_keynumber = inp->sctp_ep.default_keyid; 2829 SCTP_INP_RUNLOCK(inp); 2830 } else { 2831 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2832 error = EINVAL; 2833 } 2834 } 2835 if (error == 0) { 2836 *optsize = sizeof(struct sctp_authkeyid); 2837 } 2838 break; 2839 } 2840 case SCTP_LOCAL_AUTH_CHUNKS: 2841 { 2842 struct sctp_authchunks *sac; 2843 sctp_auth_chklist_t *chklist = NULL; 2844 size_t size = 0; 2845 2846 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2847 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2848 2849 if (stcb) { 2850 /* get off the assoc */ 2851 chklist = stcb->asoc.local_auth_chunks; 2852 /* is there enough space? */ 2853 size = sctp_auth_get_chklist_size(chklist); 2854 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2855 error = EINVAL; 2856 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2857 } else { 2858 /* copy in the chunks */ 2859 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2860 *optsize = sizeof(struct sctp_authchunks) + size; 2861 } 2862 SCTP_TCB_UNLOCK(stcb); 2863 } else { 2864 if (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC) { 2865 /* get off the endpoint */ 2866 SCTP_INP_RLOCK(inp); 2867 chklist = inp->sctp_ep.local_auth_chunks; 2868 /* is there enough space? */ 2869 size = sctp_auth_get_chklist_size(chklist); 2870 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2871 error = EINVAL; 2872 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2873 } else { 2874 /* copy in the chunks */ 2875 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2876 *optsize = sizeof(struct sctp_authchunks) + size; 2877 } 2878 SCTP_INP_RUNLOCK(inp); 2879 } else { 2880 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2881 error = EINVAL; 2882 } 2883 } 2884 break; 2885 } 2886 case SCTP_PEER_AUTH_CHUNKS: 2887 { 2888 struct sctp_authchunks *sac; 2889 sctp_auth_chklist_t *chklist = NULL; 2890 size_t size = 0; 2891 2892 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize); 2893 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id); 2894 2895 if (stcb) { 2896 /* get off the assoc */ 2897 chklist = stcb->asoc.peer_auth_chunks; 2898 /* is there enough space? */ 2899 size = sctp_auth_get_chklist_size(chklist); 2900 if (*optsize < (sizeof(struct sctp_authchunks) + size)) { 2901 error = EINVAL; 2902 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 2903 } else { 2904 /* copy in the chunks */ 2905 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks); 2906 *optsize = sizeof(struct sctp_authchunks) + size; 2907 } 2908 SCTP_TCB_UNLOCK(stcb); 2909 } else { 2910 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 2911 error = ENOENT; 2912 } 2913 break; 2914 } 2915 case SCTP_EVENT: 2916 { 2917 struct sctp_event *event; 2918 uint32_t event_type; 2919 2920 SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize); 2921 SCTP_FIND_STCB(inp, stcb, event->se_assoc_id); 2922 2923 switch (event->se_type) { 2924 case SCTP_ASSOC_CHANGE: 2925 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT; 2926 break; 2927 case SCTP_PEER_ADDR_CHANGE: 2928 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT; 2929 break; 2930 case SCTP_REMOTE_ERROR: 2931 event_type = SCTP_PCB_FLAGS_RECVPEERERR; 2932 break; 2933 case SCTP_SEND_FAILED: 2934 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT; 2935 break; 2936 case SCTP_SHUTDOWN_EVENT: 2937 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT; 2938 break; 2939 case SCTP_ADAPTATION_INDICATION: 2940 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT; 2941 break; 2942 case SCTP_PARTIAL_DELIVERY_EVENT: 2943 event_type = SCTP_PCB_FLAGS_PDAPIEVNT; 2944 break; 2945 case SCTP_AUTHENTICATION_EVENT: 2946 event_type = SCTP_PCB_FLAGS_AUTHEVNT; 2947 break; 2948 case SCTP_STREAM_RESET_EVENT: 2949 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT; 2950 break; 2951 case SCTP_SENDER_DRY_EVENT: 2952 event_type = SCTP_PCB_FLAGS_DRYEVNT; 2953 break; 2954 case SCTP_NOTIFICATIONS_STOPPED_EVENT: 2955 event_type = 0; 2956 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP); 2957 error = ENOTSUP; 2958 break; 2959 default: 2960 event_type = 0; 2961 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2962 error = EINVAL; 2963 break; 2964 } 2965 if (event_type > 0) { 2966 if (stcb) { 2967 event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type); 2968 SCTP_TCB_UNLOCK(stcb); 2969 } else { 2970 if (event->se_assoc_id == SCTP_FUTURE_ASSOC) { 2971 SCTP_INP_RLOCK(inp); 2972 event->se_on = sctp_is_feature_on(inp, event_type); 2973 SCTP_INP_RUNLOCK(inp); 2974 } else { 2975 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2976 error = EINVAL; 2977 } 2978 } 2979 } 2980 if (error == 0) { 2981 *optsize = sizeof(struct sctp_event); 2982 } 2983 break; 2984 } 2985 case SCTP_RECVRCVINFO: 2986 { 2987 int onoff; 2988 2989 if (*optsize < sizeof(int)) { 2990 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 2991 error = EINVAL; 2992 } else { 2993 SCTP_INP_RUNLOCK(inp); 2994 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO); 2995 SCTP_INP_RUNLOCK(inp); 2996 } 2997 if (error == 0) { 2998 /* return the option value */ 2999 *(int *)optval = onoff; 3000 *optsize = sizeof(int); 3001 } 3002 break; 3003 } 3004 case SCTP_RECVNXTINFO: 3005 { 3006 int onoff; 3007 3008 if (*optsize < sizeof(int)) { 3009 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3010 error = EINVAL; 3011 } else { 3012 SCTP_INP_RUNLOCK(inp); 3013 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO); 3014 SCTP_INP_RUNLOCK(inp); 3015 } 3016 if (error == 0) { 3017 /* return the option value */ 3018 *(int *)optval = onoff; 3019 *optsize = sizeof(int); 3020 } 3021 break; 3022 } 3023 case SCTP_DEFAULT_SNDINFO: 3024 { 3025 struct sctp_sndinfo *info; 3026 3027 SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize); 3028 SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id); 3029 3030 if (stcb) { 3031 info->snd_sid = stcb->asoc.def_send.sinfo_stream; 3032 info->snd_flags = stcb->asoc.def_send.sinfo_flags; 3033 info->snd_flags &= 0xfff0; 3034 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid; 3035 info->snd_context = stcb->asoc.def_send.sinfo_context; 3036 SCTP_TCB_UNLOCK(stcb); 3037 } else { 3038 if (info->snd_assoc_id == SCTP_FUTURE_ASSOC) { 3039 SCTP_INP_RLOCK(inp); 3040 info->snd_sid = inp->def_send.sinfo_stream; 3041 info->snd_flags = inp->def_send.sinfo_flags; 3042 info->snd_flags &= 0xfff0; 3043 info->snd_ppid = inp->def_send.sinfo_ppid; 3044 info->snd_context = inp->def_send.sinfo_context; 3045 SCTP_INP_RUNLOCK(inp); 3046 } else { 3047 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3048 error = EINVAL; 3049 } 3050 } 3051 if (error == 0) { 3052 *optsize = sizeof(struct sctp_sndinfo); 3053 } 3054 break; 3055 } 3056 case SCTP_DEFAULT_PRINFO: 3057 { 3058 struct sctp_default_prinfo *info; 3059 3060 SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize); 3061 SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id); 3062 3063 if (stcb) { 3064 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags); 3065 info->pr_value = stcb->asoc.def_send.sinfo_timetolive; 3066 SCTP_TCB_UNLOCK(stcb); 3067 } else { 3068 if (info->pr_assoc_id == SCTP_FUTURE_ASSOC) { 3069 SCTP_INP_RLOCK(inp); 3070 info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags); 3071 info->pr_value = inp->def_send.sinfo_timetolive; 3072 SCTP_INP_RUNLOCK(inp); 3073 } else { 3074 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3075 error = EINVAL; 3076 } 3077 } 3078 if (error == 0) { 3079 *optsize = sizeof(struct sctp_default_prinfo); 3080 } 3081 break; 3082 } 3083 default: 3084 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 3085 error = ENOPROTOOPT; 3086 break; 3087 } /* end switch (sopt->sopt_name) */ 3088 if (error) { 3089 *optsize = 0; 3090 } 3091 return (error); 3092} 3093 3094static int 3095sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize, 3096 void *p) 3097{ 3098 int error, set_opt; 3099 uint32_t *mopt; 3100 struct sctp_tcb *stcb = NULL; 3101 struct sctp_inpcb *inp = NULL; 3102 uint32_t vrf_id; 3103 3104 if (optval == NULL) { 3105 SCTP_PRINTF("optval is NULL\n"); 3106 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3107 return (EINVAL); 3108 } 3109 inp = (struct sctp_inpcb *)so->so_pcb; 3110 if (inp == 0) { 3111 SCTP_PRINTF("inp is NULL?\n"); 3112 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3113 return EINVAL; 3114 } 3115 vrf_id = inp->def_vrf_id; 3116 3117 error = 0; 3118 switch (optname) { 3119 case SCTP_NODELAY: 3120 case SCTP_AUTOCLOSE: 3121 case SCTP_AUTO_ASCONF: 3122 case SCTP_EXPLICIT_EOR: 3123 case SCTP_DISABLE_FRAGMENTS: 3124 case SCTP_USE_EXT_RCVINFO: 3125 case SCTP_I_WANT_MAPPED_V4_ADDR: 3126 /* copy in the option value */ 3127 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 3128 set_opt = 0; 3129 if (error) 3130 break; 3131 switch (optname) { 3132 case SCTP_DISABLE_FRAGMENTS: 3133 set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT; 3134 break; 3135 case SCTP_AUTO_ASCONF: 3136 /* 3137 * NOTE: we don't really support this flag 3138 */ 3139 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 3140 /* only valid for bound all sockets */ 3141 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF; 3142 } else { 3143 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3144 return (EINVAL); 3145 } 3146 break; 3147 case SCTP_EXPLICIT_EOR: 3148 set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR; 3149 break; 3150 case SCTP_USE_EXT_RCVINFO: 3151 set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO; 3152 break; 3153 case SCTP_I_WANT_MAPPED_V4_ADDR: 3154 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 3155 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4; 3156 } else { 3157 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3158 return (EINVAL); 3159 } 3160 break; 3161 case SCTP_NODELAY: 3162 set_opt = SCTP_PCB_FLAGS_NODELAY; 3163 break; 3164 case SCTP_AUTOCLOSE: 3165 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 3166 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 3167 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3168 return (EINVAL); 3169 } 3170 set_opt = SCTP_PCB_FLAGS_AUTOCLOSE; 3171 /* 3172 * The value is in ticks. Note this does not effect 3173 * old associations, only new ones. 3174 */ 3175 inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt); 3176 break; 3177 } 3178 SCTP_INP_WLOCK(inp); 3179 if (*mopt != 0) { 3180 sctp_feature_on(inp, set_opt); 3181 } else { 3182 sctp_feature_off(inp, set_opt); 3183 } 3184 SCTP_INP_WUNLOCK(inp); 3185 break; 3186 case SCTP_REUSE_PORT: 3187 { 3188 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize); 3189 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) { 3190 /* Can't set it after we are bound */ 3191 error = EINVAL; 3192 break; 3193 } 3194 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) { 3195 /* Can't do this for a 1-m socket */ 3196 error = EINVAL; 3197 break; 3198 } 3199 if (optval) 3200 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE); 3201 else 3202 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE); 3203 break; 3204 } 3205 case SCTP_PARTIAL_DELIVERY_POINT: 3206 { 3207 uint32_t *value; 3208 3209 SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize); 3210 if (*value > SCTP_SB_LIMIT_RCV(so)) { 3211 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3212 error = EINVAL; 3213 break; 3214 } 3215 inp->partial_delivery_point = *value; 3216 break; 3217 } 3218 case SCTP_FRAGMENT_INTERLEAVE: 3219 /* not yet until we re-write sctp_recvmsg() */ 3220 { 3221 uint32_t *level; 3222 3223 SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize); 3224 if (*level == SCTP_FRAG_LEVEL_2) { 3225 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 3226 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 3227 } else if (*level == SCTP_FRAG_LEVEL_1) { 3228 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 3229 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 3230 } else if (*level == SCTP_FRAG_LEVEL_0) { 3231 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE); 3232 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS); 3233 3234 } else { 3235 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3236 error = EINVAL; 3237 } 3238 break; 3239 } 3240 case SCTP_CMT_ON_OFF: 3241 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) { 3242 struct sctp_assoc_value *av; 3243 3244 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3245 if (av->assoc_value > SCTP_CMT_MAX) { 3246 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3247 error = EINVAL; 3248 break; 3249 } 3250 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3251 if (stcb) { 3252 stcb->asoc.sctp_cmt_on_off = av->assoc_value; 3253 SCTP_TCB_UNLOCK(stcb); 3254 } else { 3255 if ((av->assoc_id == SCTP_FUTURE_ASSOC) || 3256 (av->assoc_id == SCTP_ALL_ASSOC)) { 3257 SCTP_INP_WLOCK(inp); 3258 inp->sctp_cmt_on_off = av->assoc_value; 3259 SCTP_INP_WUNLOCK(inp); 3260 } 3261 if ((av->assoc_id == SCTP_CURRENT_ASSOC) || 3262 (av->assoc_id == SCTP_ALL_ASSOC)) { 3263 SCTP_INP_RLOCK(inp); 3264 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3265 SCTP_TCB_LOCK(stcb); 3266 stcb->asoc.sctp_cmt_on_off = av->assoc_value; 3267 SCTP_TCB_UNLOCK(stcb); 3268 SCTP_INP_RUNLOCK(inp); 3269 } 3270 } 3271 } 3272 } else { 3273 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 3274 error = ENOPROTOOPT; 3275 } 3276 break; 3277 case SCTP_PLUGGABLE_CC: 3278 { 3279 struct sctp_assoc_value *av; 3280 struct sctp_nets *net; 3281 3282 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3283 if ((av->assoc_value != SCTP_CC_RFC2581) && 3284 (av->assoc_value != SCTP_CC_HSTCP) && 3285 (av->assoc_value != SCTP_CC_HTCP) && 3286 (av->assoc_value != SCTP_CC_RTCC)) { 3287 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3288 error = EINVAL; 3289 break; 3290 } 3291 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3292 if (stcb) { 3293 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value]; 3294 stcb->asoc.congestion_control_module = av->assoc_value; 3295 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) { 3296 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3297 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net); 3298 } 3299 } 3300 SCTP_TCB_UNLOCK(stcb); 3301 } else { 3302 if ((av->assoc_id == SCTP_FUTURE_ASSOC) || 3303 (av->assoc_id == SCTP_ALL_ASSOC)) { 3304 SCTP_INP_WLOCK(inp); 3305 inp->sctp_ep.sctp_default_cc_module = av->assoc_value; 3306 SCTP_INP_WUNLOCK(inp); 3307 } 3308 if ((av->assoc_id == SCTP_CURRENT_ASSOC) || 3309 (av->assoc_id == SCTP_ALL_ASSOC)) { 3310 SCTP_INP_RLOCK(inp); 3311 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3312 SCTP_TCB_LOCK(stcb); 3313 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value]; 3314 stcb->asoc.congestion_control_module = av->assoc_value; 3315 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) { 3316 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 3317 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net); 3318 } 3319 } 3320 SCTP_TCB_UNLOCK(stcb); 3321 } 3322 SCTP_INP_RUNLOCK(inp); 3323 } 3324 } 3325 break; 3326 } 3327 case SCTP_CC_OPTION: 3328 { 3329 struct sctp_cc_option *cc_opt; 3330 3331 SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize); 3332 SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id); 3333 if (stcb == NULL) { 3334 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) { 3335 SCTP_INP_RLOCK(inp); 3336 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3337 SCTP_TCB_LOCK(stcb); 3338 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) { 3339 (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt); 3340 } 3341 SCTP_TCB_UNLOCK(stcb); 3342 } 3343 SCTP_INP_RUNLOCK(inp); 3344 } else { 3345 error = EINVAL; 3346 } 3347 } else { 3348 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) { 3349 error = ENOTSUP; 3350 } else { 3351 error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, 3352 cc_opt); 3353 } 3354 SCTP_TCB_UNLOCK(stcb); 3355 } 3356 break; 3357 } 3358 case SCTP_PLUGGABLE_SS: 3359 { 3360 struct sctp_assoc_value *av; 3361 3362 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3363 if ((av->assoc_value != SCTP_SS_DEFAULT) && 3364 (av->assoc_value != SCTP_SS_DEFAULT) && 3365 (av->assoc_value != SCTP_SS_ROUND_ROBIN) && 3366 (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) && 3367 (av->assoc_value != SCTP_SS_PRIORITY) && 3368 (av->assoc_value != SCTP_SS_FAIR_BANDWITH) && 3369 (av->assoc_value != SCTP_SS_FIRST_COME)) { 3370 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3371 error = EINVAL; 3372 break; 3373 } 3374 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3375 if (stcb) { 3376 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1); 3377 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value]; 3378 stcb->asoc.stream_scheduling_module = av->assoc_value; 3379 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1); 3380 SCTP_TCB_UNLOCK(stcb); 3381 } else { 3382 if ((av->assoc_id == SCTP_FUTURE_ASSOC) || 3383 (av->assoc_id == SCTP_ALL_ASSOC)) { 3384 SCTP_INP_WLOCK(inp); 3385 inp->sctp_ep.sctp_default_ss_module = av->assoc_value; 3386 SCTP_INP_WUNLOCK(inp); 3387 } 3388 if ((av->assoc_id == SCTP_CURRENT_ASSOC) || 3389 (av->assoc_id == SCTP_ALL_ASSOC)) { 3390 SCTP_INP_RLOCK(inp); 3391 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3392 SCTP_TCB_LOCK(stcb); 3393 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1); 3394 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value]; 3395 stcb->asoc.stream_scheduling_module = av->assoc_value; 3396 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1); 3397 SCTP_TCB_UNLOCK(stcb); 3398 } 3399 SCTP_INP_RUNLOCK(inp); 3400 } 3401 } 3402 break; 3403 } 3404 case SCTP_SS_VALUE: 3405 { 3406 struct sctp_stream_value *av; 3407 3408 SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize); 3409 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3410 if (stcb) { 3411 if (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id], 3412 av->stream_value) < 0) { 3413 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3414 error = EINVAL; 3415 } 3416 SCTP_TCB_UNLOCK(stcb); 3417 } else { 3418 if (av->assoc_id == SCTP_CURRENT_ASSOC) { 3419 SCTP_INP_RLOCK(inp); 3420 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3421 SCTP_TCB_LOCK(stcb); 3422 stcb->asoc.ss_functions.sctp_ss_set_value(stcb, 3423 &stcb->asoc, 3424 &stcb->asoc.strmout[av->stream_id], 3425 av->stream_value); 3426 SCTP_TCB_UNLOCK(stcb); 3427 } 3428 SCTP_INP_RUNLOCK(inp); 3429 3430 } else { 3431 /* 3432 * Can't set stream value without 3433 * association 3434 */ 3435 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3436 error = EINVAL; 3437 } 3438 } 3439 break; 3440 } 3441 case SCTP_CLR_STAT_LOG: 3442 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 3443 error = EOPNOTSUPP; 3444 break; 3445 case SCTP_CONTEXT: 3446 { 3447 struct sctp_assoc_value *av; 3448 3449 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 3450 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 3451 3452 if (stcb) { 3453 stcb->asoc.context = av->assoc_value; 3454 SCTP_TCB_UNLOCK(stcb); 3455 } else { 3456 if ((av->assoc_id == SCTP_FUTURE_ASSOC) || 3457 (av->assoc_id == SCTP_ALL_ASSOC)) { 3458 SCTP_INP_WLOCK(inp); 3459 inp->sctp_context = av->assoc_value; 3460 SCTP_INP_WUNLOCK(inp); 3461 } 3462 if ((av->assoc_id == SCTP_CURRENT_ASSOC) || 3463 (av->assoc_id == SCTP_ALL_ASSOC)) { 3464 SCTP_INP_RLOCK(inp); 3465 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3466 SCTP_TCB_LOCK(stcb); 3467 stcb->asoc.context = av->assoc_value; 3468 SCTP_TCB_UNLOCK(stcb); 3469 } 3470 SCTP_INP_RUNLOCK(inp); 3471 } 3472 } 3473 break; 3474 } 3475 case SCTP_VRF_ID: 3476 { 3477 uint32_t *default_vrfid; 3478 3479 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize); 3480 if (*default_vrfid > SCTP_MAX_VRF_ID) { 3481 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3482 error = EINVAL; 3483 break; 3484 } 3485 inp->def_vrf_id = *default_vrfid; 3486 break; 3487 } 3488 case SCTP_DEL_VRF_ID: 3489 { 3490 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 3491 error = EOPNOTSUPP; 3492 break; 3493 } 3494 case SCTP_ADD_VRF_ID: 3495 { 3496 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 3497 error = EOPNOTSUPP; 3498 break; 3499 } 3500 case SCTP_DELAYED_SACK: 3501 { 3502 struct sctp_sack_info *sack; 3503 3504 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize); 3505 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id); 3506 if (sack->sack_delay) { 3507 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) 3508 sack->sack_delay = SCTP_MAX_SACK_DELAY; 3509 if (MSEC_TO_TICKS(sack->sack_delay) < 1) { 3510 sack->sack_delay = TICKS_TO_MSEC(1); 3511 } 3512 } 3513 if (stcb) { 3514 if (sack->sack_delay) { 3515 stcb->asoc.delayed_ack = sack->sack_delay; 3516 } 3517 if (sack->sack_freq) { 3518 stcb->asoc.sack_freq = sack->sack_freq; 3519 } 3520 SCTP_TCB_UNLOCK(stcb); 3521 } else { 3522 if ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) || 3523 (sack->sack_assoc_id == SCTP_ALL_ASSOC)) { 3524 SCTP_INP_WLOCK(inp); 3525 if (sack->sack_delay) { 3526 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay); 3527 } 3528 if (sack->sack_freq) { 3529 inp->sctp_ep.sctp_sack_freq = sack->sack_freq; 3530 } 3531 SCTP_INP_WUNLOCK(inp); 3532 } 3533 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) || 3534 (sack->sack_assoc_id == SCTP_ALL_ASSOC)) { 3535 SCTP_INP_RLOCK(inp); 3536 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3537 SCTP_TCB_LOCK(stcb); 3538 if (sack->sack_delay) { 3539 stcb->asoc.delayed_ack = sack->sack_delay; 3540 } 3541 if (sack->sack_freq) { 3542 stcb->asoc.sack_freq = sack->sack_freq; 3543 } 3544 SCTP_TCB_UNLOCK(stcb); 3545 } 3546 SCTP_INP_RUNLOCK(inp); 3547 } 3548 } 3549 break; 3550 } 3551 case SCTP_AUTH_CHUNK: 3552 { 3553 struct sctp_authchunk *sauth; 3554 3555 SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize); 3556 3557 SCTP_INP_WLOCK(inp); 3558 if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) { 3559 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3560 error = EINVAL; 3561 } 3562 SCTP_INP_WUNLOCK(inp); 3563 break; 3564 } 3565 case SCTP_AUTH_KEY: 3566 { 3567 struct sctp_authkey *sca; 3568 struct sctp_keyhead *shared_keys; 3569 sctp_sharedkey_t *shared_key; 3570 sctp_key_t *key = NULL; 3571 size_t size; 3572 3573 SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize); 3574 if (sca->sca_keylength == 0) { 3575 size = optsize - sizeof(struct sctp_authkey); 3576 } else { 3577 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) { 3578 size = sca->sca_keylength; 3579 } else { 3580 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3581 error = EINVAL; 3582 break; 3583 } 3584 } 3585 SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id); 3586 3587 if (stcb) { 3588 shared_keys = &stcb->asoc.shared_keys; 3589 /* clear the cached keys for this key id */ 3590 sctp_clear_cachedkeys(stcb, sca->sca_keynumber); 3591 /* 3592 * create the new shared key and 3593 * insert/replace it 3594 */ 3595 if (size > 0) { 3596 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3597 if (key == NULL) { 3598 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3599 error = ENOMEM; 3600 SCTP_TCB_UNLOCK(stcb); 3601 break; 3602 } 3603 } 3604 shared_key = sctp_alloc_sharedkey(); 3605 if (shared_key == NULL) { 3606 sctp_free_key(key); 3607 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3608 error = ENOMEM; 3609 SCTP_TCB_UNLOCK(stcb); 3610 break; 3611 } 3612 shared_key->key = key; 3613 shared_key->keyid = sca->sca_keynumber; 3614 error = sctp_insert_sharedkey(shared_keys, shared_key); 3615 SCTP_TCB_UNLOCK(stcb); 3616 } else { 3617 if ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) || 3618 (sca->sca_assoc_id == SCTP_ALL_ASSOC)) { 3619 SCTP_INP_WLOCK(inp); 3620 shared_keys = &inp->sctp_ep.shared_keys; 3621 /* 3622 * clear the cached keys on all 3623 * assocs for this key id 3624 */ 3625 sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber); 3626 /* 3627 * create the new shared key and 3628 * insert/replace it 3629 */ 3630 if (size > 0) { 3631 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3632 if (key == NULL) { 3633 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3634 error = ENOMEM; 3635 SCTP_INP_WUNLOCK(inp); 3636 break; 3637 } 3638 } 3639 shared_key = sctp_alloc_sharedkey(); 3640 if (shared_key == NULL) { 3641 sctp_free_key(key); 3642 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3643 error = ENOMEM; 3644 SCTP_INP_WUNLOCK(inp); 3645 break; 3646 } 3647 shared_key->key = key; 3648 shared_key->keyid = sca->sca_keynumber; 3649 error = sctp_insert_sharedkey(shared_keys, shared_key); 3650 SCTP_INP_WUNLOCK(inp); 3651 } 3652 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) || 3653 (sca->sca_assoc_id == SCTP_ALL_ASSOC)) { 3654 SCTP_INP_RLOCK(inp); 3655 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3656 SCTP_TCB_LOCK(stcb); 3657 shared_keys = &stcb->asoc.shared_keys; 3658 /* 3659 * clear the cached keys for 3660 * this key id 3661 */ 3662 sctp_clear_cachedkeys(stcb, sca->sca_keynumber); 3663 /* 3664 * create the new shared key 3665 * and insert/replace it 3666 */ 3667 if (size > 0) { 3668 key = sctp_set_key(sca->sca_key, (uint32_t) size); 3669 if (key == NULL) { 3670 SCTP_TCB_UNLOCK(stcb); 3671 continue; 3672 } 3673 } 3674 shared_key = sctp_alloc_sharedkey(); 3675 if (shared_key == NULL) { 3676 sctp_free_key(key); 3677 SCTP_TCB_UNLOCK(stcb); 3678 continue; 3679 } 3680 shared_key->key = key; 3681 shared_key->keyid = sca->sca_keynumber; 3682 error = sctp_insert_sharedkey(shared_keys, shared_key); 3683 SCTP_TCB_UNLOCK(stcb); 3684 } 3685 SCTP_INP_RUNLOCK(inp); 3686 } 3687 } 3688 break; 3689 } 3690 case SCTP_HMAC_IDENT: 3691 { 3692 struct sctp_hmacalgo *shmac; 3693 sctp_hmaclist_t *hmaclist; 3694 uint16_t hmacid; 3695 uint32_t i; 3696 size_t found; 3697 3698 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize); 3699 if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) { 3700 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3701 error = EINVAL; 3702 break; 3703 } 3704 hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents); 3705 if (hmaclist == NULL) { 3706 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM); 3707 error = ENOMEM; 3708 break; 3709 } 3710 for (i = 0; i < shmac->shmac_number_of_idents; i++) { 3711 hmacid = shmac->shmac_idents[i]; 3712 if (sctp_auth_add_hmacid(hmaclist, hmacid)) { 3713 /* invalid HMACs were found */ ; 3714 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3715 error = EINVAL; 3716 sctp_free_hmaclist(hmaclist); 3717 goto sctp_set_hmac_done; 3718 } 3719 } 3720 found = 0; 3721 for (i = 0; i < hmaclist->num_algo; i++) { 3722 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) { 3723 /* already in list */ 3724 found = 1; 3725 } 3726 } 3727 if (!found) { 3728 sctp_free_hmaclist(hmaclist); 3729 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3730 error = EINVAL; 3731 break; 3732 } 3733 /* set it on the endpoint */ 3734 SCTP_INP_WLOCK(inp); 3735 if (inp->sctp_ep.local_hmacs) 3736 sctp_free_hmaclist(inp->sctp_ep.local_hmacs); 3737 inp->sctp_ep.local_hmacs = hmaclist; 3738 SCTP_INP_WUNLOCK(inp); 3739 sctp_set_hmac_done: 3740 break; 3741 } 3742 case SCTP_AUTH_ACTIVE_KEY: 3743 { 3744 struct sctp_authkeyid *scact; 3745 3746 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize); 3747 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id); 3748 3749 /* set the active key on the right place */ 3750 if (stcb) { 3751 /* set the active key on the assoc */ 3752 if (sctp_auth_setactivekey(stcb, 3753 scact->scact_keynumber)) { 3754 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, 3755 SCTP_FROM_SCTP_USRREQ, 3756 EINVAL); 3757 error = EINVAL; 3758 } 3759 SCTP_TCB_UNLOCK(stcb); 3760 } else { 3761 if ((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) || 3762 (scact->scact_assoc_id == SCTP_ALL_ASSOC)) { 3763 SCTP_INP_WLOCK(inp); 3764 if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) { 3765 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3766 error = EINVAL; 3767 } 3768 SCTP_INP_WUNLOCK(inp); 3769 } 3770 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) || 3771 (scact->scact_assoc_id == SCTP_ALL_ASSOC)) { 3772 SCTP_INP_RLOCK(inp); 3773 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3774 SCTP_TCB_LOCK(stcb); 3775 sctp_auth_setactivekey(stcb, scact->scact_keynumber); 3776 SCTP_TCB_UNLOCK(stcb); 3777 } 3778 SCTP_INP_RUNLOCK(inp); 3779 } 3780 } 3781 break; 3782 } 3783 case SCTP_AUTH_DELETE_KEY: 3784 { 3785 struct sctp_authkeyid *scdel; 3786 3787 SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize); 3788 SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id); 3789 3790 /* delete the key from the right place */ 3791 if (stcb) { 3792 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) { 3793 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3794 error = EINVAL; 3795 } 3796 SCTP_TCB_UNLOCK(stcb); 3797 } else { 3798 if ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) || 3799 (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) { 3800 SCTP_INP_WLOCK(inp); 3801 if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) { 3802 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3803 error = EINVAL; 3804 } 3805 SCTP_INP_WUNLOCK(inp); 3806 } 3807 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) || 3808 (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) { 3809 SCTP_INP_RLOCK(inp); 3810 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3811 SCTP_TCB_LOCK(stcb); 3812 sctp_delete_sharedkey(stcb, scdel->scact_keynumber); 3813 SCTP_TCB_UNLOCK(stcb); 3814 } 3815 SCTP_INP_RUNLOCK(inp); 3816 } 3817 } 3818 break; 3819 } 3820 case SCTP_AUTH_DEACTIVATE_KEY: 3821 { 3822 struct sctp_authkeyid *keyid; 3823 3824 SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize); 3825 SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id); 3826 3827 /* deactivate the key from the right place */ 3828 if (stcb) { 3829 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) { 3830 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3831 error = EINVAL; 3832 } 3833 SCTP_TCB_UNLOCK(stcb); 3834 } else { 3835 if ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) || 3836 (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) { 3837 SCTP_INP_WLOCK(inp); 3838 if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) { 3839 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3840 error = EINVAL; 3841 } 3842 SCTP_INP_WUNLOCK(inp); 3843 } 3844 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) || 3845 (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) { 3846 SCTP_INP_RLOCK(inp); 3847 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 3848 SCTP_TCB_LOCK(stcb); 3849 sctp_deact_sharedkey(stcb, keyid->scact_keynumber); 3850 SCTP_TCB_UNLOCK(stcb); 3851 } 3852 SCTP_INP_RUNLOCK(inp); 3853 } 3854 } 3855 break; 3856 } 3857 3858 case SCTP_RESET_STREAMS: 3859 { 3860 struct sctp_stream_reset *strrst; 3861 uint8_t send_in = 0, send_tsn = 0, send_out = 0, 3862 addstream = 0; 3863 uint16_t addstrmcnt = 0; 3864 int i; 3865 3866 SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize); 3867 SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id); 3868 3869 if (stcb == NULL) { 3870 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 3871 error = ENOENT; 3872 break; 3873 } 3874 if (stcb->asoc.peer_supports_strreset == 0) { 3875 /* 3876 * Peer does not support it, we return 3877 * protocol not supported since this is true 3878 * for this feature and this peer, not the 3879 * socket request in general. 3880 */ 3881 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT); 3882 error = EPROTONOSUPPORT; 3883 SCTP_TCB_UNLOCK(stcb); 3884 break; 3885 } 3886 if (stcb->asoc.stream_reset_outstanding) { 3887 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 3888 error = EALREADY; 3889 SCTP_TCB_UNLOCK(stcb); 3890 break; 3891 } 3892 if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) { 3893 send_in = 1; 3894 } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) { 3895 send_out = 1; 3896 } else if (strrst->strrst_flags == SCTP_RESET_BOTH) { 3897 send_in = 1; 3898 send_out = 1; 3899 } else if (strrst->strrst_flags == SCTP_RESET_TSN) { 3900 send_tsn = 1; 3901 } else if (strrst->strrst_flags == SCTP_RESET_ADD_STREAMS) { 3902 if (send_tsn || 3903 send_in || 3904 send_out) { 3905 /* We can't do that and add streams */ 3906 error = EINVAL; 3907 goto skip_stuff; 3908 } 3909 if (stcb->asoc.stream_reset_outstanding) { 3910 error = EBUSY; 3911 goto skip_stuff; 3912 } 3913 addstream = 1; 3914 /* We allocate here */ 3915 addstrmcnt = strrst->strrst_num_streams; 3916 if ((int)(addstrmcnt + stcb->asoc.streamoutcnt) > 0xffff) { 3917 /* You can't have more than 64k */ 3918 error = EINVAL; 3919 goto skip_stuff; 3920 } 3921 if ((stcb->asoc.strm_realoutsize - stcb->asoc.streamoutcnt) < addstrmcnt) { 3922 /* Need to allocate more */ 3923 struct sctp_stream_out *oldstream; 3924 struct sctp_stream_queue_pending *sp, 3925 *nsp; 3926 3927 oldstream = stcb->asoc.strmout; 3928 /* get some more */ 3929 SCTP_MALLOC(stcb->asoc.strmout, struct sctp_stream_out *, 3930 ((stcb->asoc.streamoutcnt + addstrmcnt) * sizeof(struct sctp_stream_out)), 3931 SCTP_M_STRMO); 3932 if (stcb->asoc.strmout == NULL) { 3933 stcb->asoc.strmout = oldstream; 3934 error = ENOMEM; 3935 goto skip_stuff; 3936 } 3937 /* 3938 * Ok now we proceed with copying 3939 * the old out stuff and 3940 * initializing the new stuff. 3941 */ 3942 SCTP_TCB_SEND_LOCK(stcb); 3943 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 0, 1); 3944 for (i = 0; i < stcb->asoc.streamoutcnt; i++) { 3945 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); 3946 stcb->asoc.strmout[i].next_sequence_sent = oldstream[i].next_sequence_sent; 3947 stcb->asoc.strmout[i].last_msg_incomplete = oldstream[i].last_msg_incomplete; 3948 stcb->asoc.strmout[i].stream_no = i; 3949 stcb->asoc.ss_functions.sctp_ss_init_stream(&stcb->asoc.strmout[i], &oldstream[i]); 3950 /* 3951 * now anything on those 3952 * queues? 3953 */ 3954 TAILQ_FOREACH_SAFE(sp, &oldstream[i].outqueue, next, nsp) { 3955 TAILQ_REMOVE(&oldstream[i].outqueue, sp, next); 3956 TAILQ_INSERT_TAIL(&stcb->asoc.strmout[i].outqueue, sp, next); 3957 } 3958 /* 3959 * Now move assoc pointers 3960 * too 3961 */ 3962 if (stcb->asoc.last_out_stream == &oldstream[i]) { 3963 stcb->asoc.last_out_stream = &stcb->asoc.strmout[i]; 3964 } 3965 if (stcb->asoc.locked_on_sending == &oldstream[i]) { 3966 stcb->asoc.locked_on_sending = &stcb->asoc.strmout[i]; 3967 } 3968 } 3969 /* now the new streams */ 3970 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1); 3971 for (i = stcb->asoc.streamoutcnt; i < (stcb->asoc.streamoutcnt + addstrmcnt); i++) { 3972 stcb->asoc.strmout[i].next_sequence_sent = 0x0; 3973 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); 3974 stcb->asoc.strmout[i].stream_no = i; 3975 stcb->asoc.strmout[i].last_msg_incomplete = 0; 3976 stcb->asoc.ss_functions.sctp_ss_init_stream(&stcb->asoc.strmout[i], NULL); 3977 } 3978 stcb->asoc.strm_realoutsize = stcb->asoc.streamoutcnt + addstrmcnt; 3979 SCTP_FREE(oldstream, SCTP_M_STRMO); 3980 } 3981 SCTP_TCB_SEND_UNLOCK(stcb); 3982 goto skip_stuff; 3983 } else { 3984 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3985 error = EINVAL; 3986 SCTP_TCB_UNLOCK(stcb); 3987 break; 3988 } 3989 for (i = 0; i < strrst->strrst_num_streams; i++) { 3990 if ((send_in) && 3991 3992 (strrst->strrst_list[i] > stcb->asoc.streamincnt)) { 3993 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 3994 error = EINVAL; 3995 goto get_out; 3996 } 3997 if ((send_out) && 3998 (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) { 3999 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4000 error = EINVAL; 4001 goto get_out; 4002 } 4003 } 4004 skip_stuff: 4005 if (error) { 4006 get_out: 4007 SCTP_TCB_UNLOCK(stcb); 4008 break; 4009 } 4010 error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams, 4011 strrst->strrst_list, 4012 send_out, (stcb->asoc.str_reset_seq_in - 3), 4013 send_in, send_tsn, addstream, addstrmcnt); 4014 4015 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED); 4016 SCTP_TCB_UNLOCK(stcb); 4017 break; 4018 } 4019 case SCTP_CONNECT_X: 4020 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 4021 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4022 error = EINVAL; 4023 break; 4024 } 4025 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0); 4026 break; 4027 case SCTP_CONNECT_X_DELAYED: 4028 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) { 4029 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4030 error = EINVAL; 4031 break; 4032 } 4033 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1); 4034 break; 4035 case SCTP_CONNECT_X_COMPLETE: 4036 { 4037 struct sockaddr *sa; 4038 struct sctp_nets *net; 4039 4040 /* FIXME MT: check correct? */ 4041 SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize); 4042 4043 /* find tcb */ 4044 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 4045 SCTP_INP_RLOCK(inp); 4046 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4047 if (stcb) { 4048 SCTP_TCB_LOCK(stcb); 4049 net = sctp_findnet(stcb, sa); 4050 } 4051 SCTP_INP_RUNLOCK(inp); 4052 } else { 4053 /* 4054 * We increment here since 4055 * sctp_findassociation_ep_addr() wil do a 4056 * decrement if it finds the stcb as long as 4057 * the locked tcb (last argument) is NOT a 4058 * TCB.. aka NULL. 4059 */ 4060 SCTP_INP_INCR_REF(inp); 4061 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL); 4062 if (stcb == NULL) { 4063 SCTP_INP_DECR_REF(inp); 4064 } 4065 } 4066 4067 if (stcb == NULL) { 4068 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 4069 error = ENOENT; 4070 break; 4071 } 4072 if (stcb->asoc.delayed_connection == 1) { 4073 stcb->asoc.delayed_connection = 0; 4074 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 4075 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb, 4076 stcb->asoc.primary_destination, 4077 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9); 4078 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 4079 } else { 4080 /* 4081 * already expired or did not use delayed 4082 * connectx 4083 */ 4084 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 4085 error = EALREADY; 4086 } 4087 SCTP_TCB_UNLOCK(stcb); 4088 break; 4089 } 4090 case SCTP_MAX_BURST: 4091 { 4092 struct sctp_assoc_value *av; 4093 4094 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 4095 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 4096 4097 if (stcb) { 4098 stcb->asoc.max_burst = av->assoc_value; 4099 SCTP_TCB_UNLOCK(stcb); 4100 } else { 4101 if ((av->assoc_id == SCTP_FUTURE_ASSOC) || 4102 (av->assoc_id == SCTP_ALL_ASSOC)) { 4103 SCTP_INP_WLOCK(inp); 4104 inp->sctp_ep.max_burst = av->assoc_value; 4105 SCTP_INP_WUNLOCK(inp); 4106 } 4107 if ((av->assoc_id == SCTP_CURRENT_ASSOC) || 4108 (av->assoc_id == SCTP_ALL_ASSOC)) { 4109 SCTP_INP_RLOCK(inp); 4110 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 4111 SCTP_TCB_LOCK(stcb); 4112 stcb->asoc.max_burst = av->assoc_value; 4113 SCTP_TCB_UNLOCK(stcb); 4114 } 4115 SCTP_INP_RUNLOCK(inp); 4116 } 4117 } 4118 break; 4119 } 4120 case SCTP_MAXSEG: 4121 { 4122 struct sctp_assoc_value *av; 4123 int ovh; 4124 4125 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize); 4126 SCTP_FIND_STCB(inp, stcb, av->assoc_id); 4127 4128 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 4129 ovh = SCTP_MED_OVERHEAD; 4130 } else { 4131 ovh = SCTP_MED_V4_OVERHEAD; 4132 } 4133 if (stcb) { 4134 if (av->assoc_value) { 4135 stcb->asoc.sctp_frag_point = (av->assoc_value + ovh); 4136 } else { 4137 stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 4138 } 4139 SCTP_TCB_UNLOCK(stcb); 4140 } else { 4141 if (av->assoc_id == SCTP_FUTURE_ASSOC) { 4142 SCTP_INP_WLOCK(inp); 4143 /* 4144 * FIXME MT: I think this is not in 4145 * tune with the API ID 4146 */ 4147 if (av->assoc_value) { 4148 inp->sctp_frag_point = (av->assoc_value + ovh); 4149 } else { 4150 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT; 4151 } 4152 SCTP_INP_WUNLOCK(inp); 4153 } else { 4154 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4155 error = EINVAL; 4156 } 4157 } 4158 break; 4159 } 4160 case SCTP_EVENTS: 4161 { 4162 struct sctp_event_subscribe *events; 4163 4164 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize); 4165 4166 SCTP_INP_WLOCK(inp); 4167 if (events->sctp_data_io_event) { 4168 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 4169 } else { 4170 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT); 4171 } 4172 4173 if (events->sctp_association_event) { 4174 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 4175 } else { 4176 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT); 4177 } 4178 4179 if (events->sctp_address_event) { 4180 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 4181 } else { 4182 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT); 4183 } 4184 4185 if (events->sctp_send_failure_event) { 4186 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 4187 } else { 4188 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 4189 } 4190 4191 if (events->sctp_peer_error_event) { 4192 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR); 4193 } else { 4194 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR); 4195 } 4196 4197 if (events->sctp_shutdown_event) { 4198 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 4199 } else { 4200 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 4201 } 4202 4203 if (events->sctp_partial_delivery_event) { 4204 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 4205 } else { 4206 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT); 4207 } 4208 4209 if (events->sctp_adaptation_layer_event) { 4210 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 4211 } else { 4212 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 4213 } 4214 4215 if (events->sctp_authentication_event) { 4216 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT); 4217 } else { 4218 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT); 4219 } 4220 4221 if (events->sctp_sender_dry_event) { 4222 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT); 4223 } else { 4224 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT); 4225 } 4226 4227 if (events->sctp_stream_reset_event) { 4228 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 4229 } else { 4230 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 4231 } 4232 SCTP_INP_WUNLOCK(inp); 4233 4234 SCTP_INP_RLOCK(inp); 4235 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 4236 SCTP_TCB_LOCK(stcb); 4237 if (events->sctp_association_event) { 4238 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT); 4239 } else { 4240 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT); 4241 } 4242 if (events->sctp_address_event) { 4243 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT); 4244 } else { 4245 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT); 4246 } 4247 if (events->sctp_send_failure_event) { 4248 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 4249 } else { 4250 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT); 4251 } 4252 if (events->sctp_peer_error_event) { 4253 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR); 4254 } else { 4255 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR); 4256 } 4257 if (events->sctp_shutdown_event) { 4258 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 4259 } else { 4260 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT); 4261 } 4262 if (events->sctp_partial_delivery_event) { 4263 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT); 4264 } else { 4265 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT); 4266 } 4267 if (events->sctp_adaptation_layer_event) { 4268 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 4269 } else { 4270 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT); 4271 } 4272 if (events->sctp_authentication_event) { 4273 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT); 4274 } else { 4275 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT); 4276 } 4277 if (events->sctp_sender_dry_event) { 4278 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT); 4279 } else { 4280 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT); 4281 } 4282 if (events->sctp_stream_reset_event) { 4283 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 4284 } else { 4285 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT); 4286 } 4287 SCTP_TCB_UNLOCK(stcb); 4288 } 4289 /* 4290 * Send up the sender dry event only for 1-to-1 4291 * style sockets. 4292 */ 4293 if (events->sctp_sender_dry_event) { 4294 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || 4295 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 4296 stcb = LIST_FIRST(&inp->sctp_asoc_list); 4297 if (stcb) { 4298 SCTP_TCB_LOCK(stcb); 4299 if (TAILQ_EMPTY(&stcb->asoc.send_queue) && 4300 TAILQ_EMPTY(&stcb->asoc.sent_queue) && 4301 (stcb->asoc.stream_queue_cnt == 0)) { 4302 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED); 4303 } 4304 SCTP_TCB_UNLOCK(stcb); 4305 } 4306 } 4307 } 4308 SCTP_INP_RUNLOCK(inp); 4309 break; 4310 } 4311 case SCTP_ADAPTATION_LAYER: 4312 { 4313 struct sctp_setadaptation *adap_bits; 4314 4315 SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize); 4316 SCTP_INP_WLOCK(inp); 4317 inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind; 4318 SCTP_INP_WUNLOCK(inp); 4319 break; 4320 } 4321#ifdef SCTP_DEBUG 4322 case SCTP_SET_INITIAL_DBG_SEQ: 4323 { 4324 uint32_t *vvv; 4325 4326 SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize); 4327 SCTP_INP_WLOCK(inp); 4328 inp->sctp_ep.initial_sequence_debug = *vvv; 4329 SCTP_INP_WUNLOCK(inp); 4330 break; 4331 } 4332#endif 4333 case SCTP_DEFAULT_SEND_PARAM: 4334 { 4335 struct sctp_sndrcvinfo *s_info; 4336 4337 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize); 4338 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id); 4339 4340 if (stcb) { 4341 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) { 4342 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send))); 4343 } else { 4344 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4345 error = EINVAL; 4346 } 4347 SCTP_TCB_UNLOCK(stcb); 4348 } else { 4349 if ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) || 4350 (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) { 4351 SCTP_INP_WLOCK(inp); 4352 memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send))); 4353 SCTP_INP_WUNLOCK(inp); 4354 } 4355 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) || 4356 (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) { 4357 SCTP_INP_RLOCK(inp); 4358 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 4359 SCTP_TCB_LOCK(stcb); 4360 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) { 4361 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send))); 4362 } 4363 SCTP_TCB_UNLOCK(stcb); 4364 } 4365 SCTP_INP_RUNLOCK(inp); 4366 } 4367 } 4368 break; 4369 } 4370 case SCTP_PEER_ADDR_PARAMS: 4371 /* Applys to the specific association */ 4372 { 4373 struct sctp_paddrparams *paddrp; 4374 struct sctp_nets *net; 4375 4376 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize); 4377 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); 4378 net = NULL; 4379 if (stcb) { 4380 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); 4381 } else { 4382 /* 4383 * We increment here since 4384 * sctp_findassociation_ep_addr() wil do a 4385 * decrement if it finds the stcb as long as 4386 * the locked tcb (last argument) is NOT a 4387 * TCB.. aka NULL. 4388 */ 4389 SCTP_INP_INCR_REF(inp); 4390 stcb = sctp_findassociation_ep_addr(&inp, 4391 (struct sockaddr *)&paddrp->spp_address, 4392 &net, NULL, NULL); 4393 if (stcb == NULL) { 4394 SCTP_INP_DECR_REF(inp); 4395 } 4396 } 4397 if (stcb && (net == NULL)) { 4398 struct sockaddr *sa; 4399 4400 sa = (struct sockaddr *)&paddrp->spp_address; 4401#ifdef INET 4402 if (sa->sa_family == AF_INET) { 4403 4404 struct sockaddr_in *sin; 4405 4406 sin = (struct sockaddr_in *)sa; 4407 if (sin->sin_addr.s_addr) { 4408 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4409 SCTP_TCB_UNLOCK(stcb); 4410 error = EINVAL; 4411 break; 4412 } 4413 } else 4414#endif 4415#ifdef INET6 4416 if (sa->sa_family == AF_INET6) { 4417 struct sockaddr_in6 *sin6; 4418 4419 sin6 = (struct sockaddr_in6 *)sa; 4420 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { 4421 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4422 SCTP_TCB_UNLOCK(stcb); 4423 error = EINVAL; 4424 break; 4425 } 4426 } else 4427#endif 4428 { 4429 error = EAFNOSUPPORT; 4430 SCTP_TCB_UNLOCK(stcb); 4431 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 4432 break; 4433 } 4434 } 4435 /* sanity checks */ 4436 if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) { 4437 if (stcb) 4438 SCTP_TCB_UNLOCK(stcb); 4439 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4440 return (EINVAL); 4441 } 4442 if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) { 4443 if (stcb) 4444 SCTP_TCB_UNLOCK(stcb); 4445 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4446 return (EINVAL); 4447 } 4448 if (stcb) { 4449 /************************TCB SPECIFIC SET ******************/ 4450 /* 4451 * do we change the timer for HB, we run 4452 * only one? 4453 */ 4454 int ovh = 0; 4455 4456 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 4457 ovh = SCTP_MED_OVERHEAD; 4458 } else { 4459 ovh = SCTP_MED_V4_OVERHEAD; 4460 } 4461 4462 if (paddrp->spp_hbinterval) 4463 stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval; 4464 else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 4465 stcb->asoc.heart_beat_delay = 0; 4466 4467 /* network sets ? */ 4468 if (net) { 4469 /************************NET SPECIFIC SET ******************/ 4470 if (paddrp->spp_flags & SPP_HB_DEMAND) { 4471 /* on demand HB */ 4472 if (sctp_send_hb(stcb, 1, net, SCTP_SO_LOCKED) < 0) { 4473 /* asoc destroyed */ 4474 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4475 error = EINVAL; 4476 break; 4477 } 4478 } 4479 if (paddrp->spp_flags & SPP_HB_DISABLE) { 4480 net->dest_state |= SCTP_ADDR_NOHB; 4481 } 4482 if (paddrp->spp_flags & SPP_HB_ENABLE) { 4483 net->dest_state &= ~SCTP_ADDR_NOHB; 4484 } 4485 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 4486 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 4487 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 4488 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 4489 } 4490 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 4491 net->mtu = paddrp->spp_pathmtu + ovh; 4492 if (net->mtu < stcb->asoc.smallest_mtu) { 4493 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 4494 } 4495 } 4496 } 4497 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 4498 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 4499 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 4500 } 4501 } 4502 if (paddrp->spp_pathmaxrxt) 4503 net->failure_threshold = paddrp->spp_pathmaxrxt; 4504#ifdef INET 4505 if (paddrp->spp_flags & SPP_IPV4_TOS) { 4506 if (net->ro._l_addr.sin.sin_family == AF_INET) { 4507 net->tos_flowlabel = paddrp->spp_ipv4_tos & 0x000000fc; 4508 } 4509 } 4510#endif 4511#ifdef INET6 4512 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) { 4513 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { 4514 net->tos_flowlabel = paddrp->spp_ipv6_flowlabel; 4515 } 4516 } 4517#endif 4518 } else { 4519 /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/ 4520 if (paddrp->spp_pathmaxrxt) 4521 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt; 4522 4523 if (paddrp->spp_flags & SPP_HB_ENABLE) { 4524 /* Turn back on the timer */ 4525 stcb->asoc.hb_is_disabled = 0; 4526 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 4527 } 4528 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { 4529 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4530 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 4531 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, 4532 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10); 4533 } 4534 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { 4535 net->mtu = paddrp->spp_pathmtu + ovh; 4536 if (net->mtu < stcb->asoc.smallest_mtu) { 4537 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); 4538 } 4539 } 4540 } 4541 } 4542 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) { 4543 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4544 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { 4545 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); 4546 } 4547 } 4548 } 4549 if (paddrp->spp_flags & SPP_HB_DISABLE) { 4550 int cnt_of_unconf = 0; 4551 struct sctp_nets *lnet; 4552 4553 stcb->asoc.hb_is_disabled = 1; 4554 TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) { 4555 if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) { 4556 cnt_of_unconf++; 4557 } 4558 } 4559 /* 4560 * stop the timer ONLY if we 4561 * have no unconfirmed 4562 * addresses 4563 */ 4564 if (cnt_of_unconf == 0) { 4565 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4566 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, 4567 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11); 4568 } 4569 } 4570 } 4571 if (paddrp->spp_flags & SPP_HB_ENABLE) { 4572 /* start up the timer. */ 4573 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 4574 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); 4575 } 4576 } 4577#ifdef INET 4578 if (paddrp->spp_flags & SPP_IPV4_TOS) 4579 stcb->asoc.default_tos = paddrp->spp_ipv4_tos & 0x000000fc; 4580#endif 4581#ifdef INET6 4582 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) 4583 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel; 4584#endif 4585 4586 } 4587 SCTP_TCB_UNLOCK(stcb); 4588 } else { 4589 /************************NO TCB, SET TO default stuff ******************/ 4590 if (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC) { 4591 SCTP_INP_WLOCK(inp); 4592 /* 4593 * For the TOS/FLOWLABEL stuff you 4594 * set it with the options on the 4595 * socket 4596 */ 4597 if (paddrp->spp_pathmaxrxt) { 4598 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt; 4599 } 4600 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) 4601 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0; 4602 else if (paddrp->spp_hbinterval) { 4603 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL) 4604 paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL; 4605 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval); 4606 } 4607 if (paddrp->spp_flags & SPP_HB_ENABLE) { 4608 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 4609 4610 } else if (paddrp->spp_flags & SPP_HB_DISABLE) { 4611 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT); 4612 } 4613 SCTP_INP_WUNLOCK(inp); 4614 } else { 4615 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4616 error = EINVAL; 4617 } 4618 } 4619 break; 4620 } 4621 case SCTP_RTOINFO: 4622 { 4623 struct sctp_rtoinfo *srto; 4624 uint32_t new_init, new_min, new_max; 4625 4626 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize); 4627 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id); 4628 4629 if (stcb) { 4630 if (srto->srto_initial) 4631 new_init = srto->srto_initial; 4632 else 4633 new_init = stcb->asoc.initial_rto; 4634 if (srto->srto_max) 4635 new_max = srto->srto_max; 4636 else 4637 new_max = stcb->asoc.maxrto; 4638 if (srto->srto_min) 4639 new_min = srto->srto_min; 4640 else 4641 new_min = stcb->asoc.minrto; 4642 if ((new_min <= new_init) && (new_init <= new_max)) { 4643 stcb->asoc.initial_rto = new_init; 4644 stcb->asoc.maxrto = new_max; 4645 stcb->asoc.minrto = new_min; 4646 } else { 4647 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4648 error = EINVAL; 4649 } 4650 SCTP_TCB_UNLOCK(stcb); 4651 } else { 4652 if (srto->srto_assoc_id == SCTP_FUTURE_ASSOC) { 4653 SCTP_INP_WLOCK(inp); 4654 if (srto->srto_initial) 4655 new_init = srto->srto_initial; 4656 else 4657 new_init = inp->sctp_ep.initial_rto; 4658 if (srto->srto_max) 4659 new_max = srto->srto_max; 4660 else 4661 new_max = inp->sctp_ep.sctp_maxrto; 4662 if (srto->srto_min) 4663 new_min = srto->srto_min; 4664 else 4665 new_min = inp->sctp_ep.sctp_minrto; 4666 if ((new_min <= new_init) && (new_init <= new_max)) { 4667 inp->sctp_ep.initial_rto = new_init; 4668 inp->sctp_ep.sctp_maxrto = new_max; 4669 inp->sctp_ep.sctp_minrto = new_min; 4670 } else { 4671 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4672 error = EINVAL; 4673 } 4674 SCTP_INP_WUNLOCK(inp); 4675 } else { 4676 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4677 error = EINVAL; 4678 } 4679 } 4680 break; 4681 } 4682 case SCTP_ASSOCINFO: 4683 { 4684 struct sctp_assocparams *sasoc; 4685 4686 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize); 4687 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); 4688 if (sasoc->sasoc_cookie_life) { 4689 /* boundary check the cookie life */ 4690 if (sasoc->sasoc_cookie_life < 1000) 4691 sasoc->sasoc_cookie_life = 1000; 4692 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) { 4693 sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE; 4694 } 4695 } 4696 if (stcb) { 4697 if (sasoc->sasoc_asocmaxrxt) 4698 stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt; 4699 if (sasoc->sasoc_cookie_life) { 4700 stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 4701 } 4702 SCTP_TCB_UNLOCK(stcb); 4703 } else { 4704 if (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC) { 4705 SCTP_INP_WLOCK(inp); 4706 if (sasoc->sasoc_asocmaxrxt) 4707 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt; 4708 if (sasoc->sasoc_cookie_life) { 4709 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); 4710 } 4711 SCTP_INP_WUNLOCK(inp); 4712 } else { 4713 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4714 error = EINVAL; 4715 } 4716 } 4717 break; 4718 } 4719 case SCTP_INITMSG: 4720 { 4721 struct sctp_initmsg *sinit; 4722 4723 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize); 4724 SCTP_INP_WLOCK(inp); 4725 if (sinit->sinit_num_ostreams) 4726 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams; 4727 4728 if (sinit->sinit_max_instreams) 4729 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams; 4730 4731 if (sinit->sinit_max_attempts) 4732 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts; 4733 4734 if (sinit->sinit_max_init_timeo) 4735 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo; 4736 SCTP_INP_WUNLOCK(inp); 4737 break; 4738 } 4739 case SCTP_PRIMARY_ADDR: 4740 { 4741 struct sctp_setprim *spa; 4742 struct sctp_nets *net; 4743 4744 SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize); 4745 SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id); 4746 4747 net = NULL; 4748 if (stcb) { 4749 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr); 4750 } else { 4751 /* 4752 * We increment here since 4753 * sctp_findassociation_ep_addr() wil do a 4754 * decrement if it finds the stcb as long as 4755 * the locked tcb (last argument) is NOT a 4756 * TCB.. aka NULL. 4757 */ 4758 SCTP_INP_INCR_REF(inp); 4759 stcb = sctp_findassociation_ep_addr(&inp, 4760 (struct sockaddr *)&spa->ssp_addr, 4761 &net, NULL, NULL); 4762 if (stcb == NULL) { 4763 SCTP_INP_DECR_REF(inp); 4764 } 4765 } 4766 4767 if ((stcb) && (net)) { 4768 if ((net != stcb->asoc.primary_destination) && 4769 (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) { 4770 /* Ok we need to set it */ 4771 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) { 4772 if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) { 4773 net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH; 4774 } 4775 net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY; 4776 } 4777 } 4778 } else { 4779 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4780 error = EINVAL; 4781 } 4782 if (stcb) { 4783 SCTP_TCB_UNLOCK(stcb); 4784 } 4785 break; 4786 } 4787 case SCTP_SET_DYNAMIC_PRIMARY: 4788 { 4789 union sctp_sockstore *ss; 4790 4791 error = priv_check(curthread, 4792 PRIV_NETINET_RESERVEDPORT); 4793 if (error) 4794 break; 4795 4796 SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize); 4797 /* SUPER USER CHECK? */ 4798 error = sctp_dynamic_set_primary(&ss->sa, vrf_id); 4799 break; 4800 } 4801 case SCTP_SET_PEER_PRIMARY_ADDR: 4802 { 4803 struct sctp_setpeerprim *sspp; 4804 4805 SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize); 4806 SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id); 4807 if (stcb != NULL) { 4808 struct sctp_ifa *ifa; 4809 4810 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr, 4811 stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED); 4812 if (ifa == NULL) { 4813 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4814 error = EINVAL; 4815 goto out_of_it; 4816 } 4817 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 4818 /* 4819 * Must validate the ifa found is in 4820 * our ep 4821 */ 4822 struct sctp_laddr *laddr; 4823 int found = 0; 4824 4825 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 4826 if (laddr->ifa == NULL) { 4827 SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n", 4828 __FUNCTION__); 4829 continue; 4830 } 4831 if (laddr->ifa == ifa) { 4832 found = 1; 4833 break; 4834 } 4835 } 4836 if (!found) { 4837 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4838 error = EINVAL; 4839 goto out_of_it; 4840 } 4841 } 4842 if (sctp_set_primary_ip_address_sa(stcb, 4843 (struct sockaddr *)&sspp->sspp_addr) != 0) { 4844 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4845 error = EINVAL; 4846 } 4847 out_of_it: 4848 SCTP_TCB_UNLOCK(stcb); 4849 } else { 4850 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4851 error = EINVAL; 4852 } 4853 break; 4854 } 4855 case SCTP_BINDX_ADD_ADDR: 4856 { 4857 struct sctp_getaddresses *addrs; 4858 size_t sz; 4859 struct thread *td; 4860 4861 td = (struct thread *)p; 4862 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, 4863 optsize); 4864#ifdef INET 4865 if (addrs->addr->sa_family == AF_INET) { 4866 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 4867 if (optsize < sz) { 4868 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4869 error = EINVAL; 4870 break; 4871 } 4872 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { 4873 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4874 break; 4875 } 4876 } else 4877#endif 4878#ifdef INET6 4879 if (addrs->addr->sa_family == AF_INET6) { 4880 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 4881 if (optsize < sz) { 4882 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4883 error = EINVAL; 4884 break; 4885 } 4886 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), 4887 (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { 4888 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4889 break; 4890 } 4891 } else 4892#endif 4893 { 4894 error = EAFNOSUPPORT; 4895 break; 4896 } 4897 sctp_bindx_add_address(so, inp, addrs->addr, 4898 addrs->sget_assoc_id, vrf_id, 4899 &error, p); 4900 break; 4901 } 4902 case SCTP_BINDX_REM_ADDR: 4903 { 4904 struct sctp_getaddresses *addrs; 4905 size_t sz; 4906 struct thread *td; 4907 4908 td = (struct thread *)p; 4909 4910 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize); 4911#ifdef INET 4912 if (addrs->addr->sa_family == AF_INET) { 4913 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); 4914 if (optsize < sz) { 4915 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4916 error = EINVAL; 4917 break; 4918 } 4919 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { 4920 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4921 break; 4922 } 4923 } else 4924#endif 4925#ifdef INET6 4926 if (addrs->addr->sa_family == AF_INET6) { 4927 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); 4928 if (optsize < sz) { 4929 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4930 error = EINVAL; 4931 break; 4932 } 4933 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), 4934 (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { 4935 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); 4936 break; 4937 } 4938 } else 4939#endif 4940 { 4941 error = EAFNOSUPPORT; 4942 break; 4943 } 4944 sctp_bindx_delete_address(so, inp, addrs->addr, 4945 addrs->sget_assoc_id, vrf_id, 4946 &error); 4947 break; 4948 } 4949 case SCTP_EVENT: 4950 { 4951 struct sctp_event *event; 4952 uint32_t event_type; 4953 4954 SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize); 4955 SCTP_FIND_STCB(inp, stcb, event->se_assoc_id); 4956 switch (event->se_type) { 4957 case SCTP_ASSOC_CHANGE: 4958 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT; 4959 break; 4960 case SCTP_PEER_ADDR_CHANGE: 4961 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT; 4962 break; 4963 case SCTP_REMOTE_ERROR: 4964 event_type = SCTP_PCB_FLAGS_RECVPEERERR; 4965 break; 4966 case SCTP_SEND_FAILED: 4967 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT; 4968 break; 4969 case SCTP_SHUTDOWN_EVENT: 4970 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT; 4971 break; 4972 case SCTP_ADAPTATION_INDICATION: 4973 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT; 4974 break; 4975 case SCTP_PARTIAL_DELIVERY_EVENT: 4976 event_type = SCTP_PCB_FLAGS_PDAPIEVNT; 4977 break; 4978 case SCTP_AUTHENTICATION_EVENT: 4979 event_type = SCTP_PCB_FLAGS_AUTHEVNT; 4980 break; 4981 case SCTP_STREAM_RESET_EVENT: 4982 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT; 4983 break; 4984 case SCTP_SENDER_DRY_EVENT: 4985 event_type = SCTP_PCB_FLAGS_DRYEVNT; 4986 break; 4987 case SCTP_NOTIFICATIONS_STOPPED_EVENT: 4988 event_type = 0; 4989 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP); 4990 error = ENOTSUP; 4991 break; 4992 default: 4993 event_type = 0; 4994 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 4995 error = EINVAL; 4996 break; 4997 } 4998 if (event_type > 0) { 4999 if (stcb) { 5000 if (event->se_on) { 5001 sctp_stcb_feature_on(inp, stcb, event_type); 5002 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) { 5003 if (TAILQ_EMPTY(&stcb->asoc.send_queue) && 5004 TAILQ_EMPTY(&stcb->asoc.sent_queue) && 5005 (stcb->asoc.stream_queue_cnt == 0)) { 5006 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED); 5007 } 5008 } 5009 } else { 5010 sctp_stcb_feature_off(inp, stcb, event_type); 5011 } 5012 SCTP_TCB_UNLOCK(stcb); 5013 } else { 5014 /* 5015 * We don't want to send up a storm 5016 * of events, so return an error for 5017 * sender dry events 5018 */ 5019 if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) && 5020 ((event->se_assoc_id == SCTP_ALL_ASSOC) || 5021 (event->se_assoc_id == SCTP_CURRENT_ASSOC))) { 5022 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP); 5023 error = ENOTSUP; 5024 break; 5025 } 5026 if ((event->se_assoc_id == SCTP_FUTURE_ASSOC) || 5027 (event->se_assoc_id == SCTP_ALL_ASSOC)) { 5028 SCTP_INP_WLOCK(inp); 5029 if (event->se_on) { 5030 sctp_feature_on(inp, event_type); 5031 } else { 5032 sctp_feature_off(inp, event_type); 5033 } 5034 SCTP_INP_WUNLOCK(inp); 5035 } 5036 if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) || 5037 (event->se_assoc_id == SCTP_ALL_ASSOC)) { 5038 SCTP_INP_RLOCK(inp); 5039 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 5040 SCTP_TCB_LOCK(stcb); 5041 if (event->se_on) { 5042 sctp_stcb_feature_on(inp, stcb, event_type); 5043 } else { 5044 sctp_stcb_feature_off(inp, stcb, event_type); 5045 } 5046 SCTP_TCB_UNLOCK(stcb); 5047 } 5048 SCTP_INP_RUNLOCK(inp); 5049 } 5050 } 5051 } 5052 break; 5053 } 5054 case SCTP_RECVRCVINFO: 5055 { 5056 int *onoff; 5057 5058 SCTP_CHECK_AND_CAST(onoff, optval, int, optsize); 5059 SCTP_INP_WLOCK(inp); 5060 if (*onoff != 0) { 5061 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO); 5062 } else { 5063 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO); 5064 } 5065 SCTP_INP_WUNLOCK(inp); 5066 break; 5067 } 5068 case SCTP_RECVNXTINFO: 5069 { 5070 int *onoff; 5071 5072 SCTP_CHECK_AND_CAST(onoff, optval, int, optsize); 5073 SCTP_INP_WLOCK(inp); 5074 if (*onoff != 0) { 5075 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO); 5076 } else { 5077 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO); 5078 } 5079 SCTP_INP_WUNLOCK(inp); 5080 break; 5081 } 5082 case SCTP_DEFAULT_SNDINFO: 5083 { 5084 struct sctp_sndinfo *info; 5085 uint16_t policy; 5086 5087 SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize); 5088 SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id); 5089 5090 if (stcb) { 5091 if (info->snd_sid < stcb->asoc.streamoutcnt) { 5092 stcb->asoc.def_send.sinfo_stream = info->snd_sid; 5093 policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags); 5094 stcb->asoc.def_send.sinfo_flags = info->snd_flags; 5095 stcb->asoc.def_send.sinfo_flags |= policy; 5096 stcb->asoc.def_send.sinfo_ppid = info->snd_ppid; 5097 stcb->asoc.def_send.sinfo_context = info->snd_context; 5098 } else { 5099 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5100 error = EINVAL; 5101 } 5102 SCTP_TCB_UNLOCK(stcb); 5103 } else { 5104 if ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) || 5105 (info->snd_assoc_id == SCTP_ALL_ASSOC)) { 5106 SCTP_INP_WLOCK(inp); 5107 inp->def_send.sinfo_stream = info->snd_sid; 5108 policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags); 5109 inp->def_send.sinfo_flags = info->snd_flags; 5110 inp->def_send.sinfo_flags |= policy; 5111 inp->def_send.sinfo_ppid = info->snd_ppid; 5112 inp->def_send.sinfo_context = info->snd_context; 5113 SCTP_INP_WUNLOCK(inp); 5114 } 5115 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) || 5116 (info->snd_assoc_id == SCTP_ALL_ASSOC)) { 5117 SCTP_INP_RLOCK(inp); 5118 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 5119 SCTP_TCB_LOCK(stcb); 5120 if (info->snd_sid < stcb->asoc.streamoutcnt) { 5121 stcb->asoc.def_send.sinfo_stream = info->snd_sid; 5122 policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags); 5123 stcb->asoc.def_send.sinfo_flags = info->snd_flags; 5124 stcb->asoc.def_send.sinfo_flags |= policy; 5125 stcb->asoc.def_send.sinfo_ppid = info->snd_ppid; 5126 stcb->asoc.def_send.sinfo_context = info->snd_context; 5127 } 5128 SCTP_TCB_UNLOCK(stcb); 5129 } 5130 SCTP_INP_RUNLOCK(inp); 5131 } 5132 } 5133 break; 5134 } 5135 case SCTP_DEFAULT_PRINFO: 5136 { 5137 struct sctp_default_prinfo *info; 5138 5139 SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize); 5140 SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id); 5141 5142 if (PR_SCTP_INVALID_POLICY(info->pr_policy)) { 5143 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5144 error = EINVAL; 5145 break; 5146 } 5147 if (stcb) { 5148 stcb->asoc.def_send.sinfo_flags &= 0xfff0; 5149 stcb->asoc.def_send.sinfo_flags |= info->pr_policy; 5150 SCTP_TCB_UNLOCK(stcb); 5151 } else { 5152 if ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) || 5153 (info->pr_assoc_id == SCTP_ALL_ASSOC)) { 5154 SCTP_INP_WLOCK(inp); 5155 inp->def_send.sinfo_flags &= 0xfff0; 5156 inp->def_send.sinfo_flags |= info->pr_policy; 5157 SCTP_INP_WUNLOCK(inp); 5158 } 5159 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) || 5160 (info->pr_assoc_id == SCTP_ALL_ASSOC)) { 5161 SCTP_INP_RLOCK(inp); 5162 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { 5163 SCTP_TCB_LOCK(stcb); 5164 stcb->asoc.def_send.sinfo_flags &= 0xfff0; 5165 stcb->asoc.def_send.sinfo_flags |= info->pr_policy; 5166 SCTP_TCB_UNLOCK(stcb); 5167 } 5168 SCTP_INP_RUNLOCK(inp); 5169 } 5170 } 5171 break; 5172 } 5173 default: 5174 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); 5175 error = ENOPROTOOPT; 5176 break; 5177 } /* end switch (opt) */ 5178 return (error); 5179} 5180 5181int 5182sctp_ctloutput(struct socket *so, struct sockopt *sopt) 5183{ 5184 void *optval = NULL; 5185 size_t optsize = 0; 5186 struct sctp_inpcb *inp; 5187 void *p; 5188 int error = 0; 5189 5190 inp = (struct sctp_inpcb *)so->so_pcb; 5191 if (inp == 0) { 5192 /* I made the same as TCP since we are not setup? */ 5193 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5194 return (ECONNRESET); 5195 } 5196 if (sopt->sopt_level != IPPROTO_SCTP) { 5197 /* wrong proto level... send back up to IP */ 5198#ifdef INET6 5199 if (INP_CHECK_SOCKAF(so, AF_INET6)) 5200 error = ip6_ctloutput(so, sopt); 5201#endif /* INET6 */ 5202#if defined(INET) && defined (INET6) 5203 else 5204#endif 5205#ifdef INET 5206 error = ip_ctloutput(so, sopt); 5207#endif 5208 return (error); 5209 } 5210 optsize = sopt->sopt_valsize; 5211 if (optsize) { 5212 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT); 5213 if (optval == NULL) { 5214 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS); 5215 return (ENOBUFS); 5216 } 5217 error = sooptcopyin(sopt, optval, optsize, optsize); 5218 if (error) { 5219 SCTP_FREE(optval, SCTP_M_SOCKOPT); 5220 goto out; 5221 } 5222 } 5223 p = (void *)sopt->sopt_td; 5224 if (sopt->sopt_dir == SOPT_SET) { 5225 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p); 5226 } else if (sopt->sopt_dir == SOPT_GET) { 5227 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p); 5228 } else { 5229 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5230 error = EINVAL; 5231 } 5232 if ((error == 0) && (optval != NULL)) { 5233 error = sooptcopyout(sopt, optval, optsize); 5234 SCTP_FREE(optval, SCTP_M_SOCKOPT); 5235 } else if (optval != NULL) { 5236 SCTP_FREE(optval, SCTP_M_SOCKOPT); 5237 } 5238out: 5239 return (error); 5240} 5241 5242#ifdef INET 5243static int 5244sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p) 5245{ 5246 int error = 0; 5247 int create_lock_on = 0; 5248 uint32_t vrf_id; 5249 struct sctp_inpcb *inp; 5250 struct sctp_tcb *stcb = NULL; 5251 5252 inp = (struct sctp_inpcb *)so->so_pcb; 5253 if (inp == 0) { 5254 /* I made the same as TCP since we are not setup? */ 5255 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5256 return (ECONNRESET); 5257 } 5258 if (addr == NULL) { 5259 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5260 return EINVAL; 5261 } 5262 switch (addr->sa_family) { 5263#ifdef INET6 5264 case AF_INET6: 5265 { 5266 struct sockaddr_in6 *sin6p; 5267 5268 if (addr->sa_len != sizeof(struct sockaddr_in6)) { 5269 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5270 return (EINVAL); 5271 } 5272 sin6p = (struct sockaddr_in6 *)addr; 5273 if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) { 5274 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 5275 return (error); 5276 } 5277 break; 5278 } 5279#endif 5280#ifdef INET 5281 case AF_INET: 5282 { 5283 struct sockaddr_in *sinp; 5284 5285 if (addr->sa_len != sizeof(struct sockaddr_in)) { 5286 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5287 return (EINVAL); 5288 } 5289 sinp = (struct sockaddr_in *)addr; 5290 if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) { 5291 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); 5292 return (error); 5293 } 5294 break; 5295 } 5296#endif 5297 default: 5298 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT); 5299 return (EAFNOSUPPORT); 5300 } 5301 SCTP_INP_INCR_REF(inp); 5302 SCTP_ASOC_CREATE_LOCK(inp); 5303 create_lock_on = 1; 5304 5305 5306 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || 5307 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { 5308 /* Should I really unlock ? */ 5309 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT); 5310 error = EFAULT; 5311 goto out_now; 5312 } 5313#ifdef INET6 5314 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) && 5315 (addr->sa_family == AF_INET6)) { 5316 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5317 error = EINVAL; 5318 goto out_now; 5319 } 5320#endif /* INET6 */ 5321 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 5322 SCTP_PCB_FLAGS_UNBOUND) { 5323 /* Bind a ephemeral port */ 5324 error = sctp_inpcb_bind(so, NULL, NULL, p); 5325 if (error) { 5326 goto out_now; 5327 } 5328 } 5329 /* Now do we connect? */ 5330 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) && 5331 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) { 5332 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5333 error = EINVAL; 5334 goto out_now; 5335 } 5336 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 5337 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 5338 /* We are already connected AND the TCP model */ 5339 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 5340 error = EADDRINUSE; 5341 goto out_now; 5342 } 5343 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 5344 SCTP_INP_RLOCK(inp); 5345 stcb = LIST_FIRST(&inp->sctp_asoc_list); 5346 SCTP_INP_RUNLOCK(inp); 5347 } else { 5348 /* 5349 * We increment here since sctp_findassociation_ep_addr() 5350 * will do a decrement if it finds the stcb as long as the 5351 * locked tcb (last argument) is NOT a TCB.. aka NULL. 5352 */ 5353 SCTP_INP_INCR_REF(inp); 5354 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL); 5355 if (stcb == NULL) { 5356 SCTP_INP_DECR_REF(inp); 5357 } else { 5358 SCTP_TCB_UNLOCK(stcb); 5359 } 5360 } 5361 if (stcb != NULL) { 5362 /* Already have or am bring up an association */ 5363 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); 5364 error = EALREADY; 5365 goto out_now; 5366 } 5367 vrf_id = inp->def_vrf_id; 5368 /* We are GOOD to go */ 5369 stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p); 5370 if (stcb == NULL) { 5371 /* Gak! no memory */ 5372 goto out_now; 5373 } 5374 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) { 5375 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED; 5376 /* Set the connected flag so we can queue data */ 5377 SOCKBUF_LOCK(&so->so_rcv); 5378 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; 5379 SOCKBUF_UNLOCK(&so->so_rcv); 5380 SOCKBUF_LOCK(&so->so_snd); 5381 so->so_snd.sb_state &= ~SBS_CANTSENDMORE; 5382 SOCKBUF_UNLOCK(&so->so_snd); 5383 SOCK_LOCK(so); 5384 so->so_state &= ~SS_ISDISCONNECTING; 5385 SOCK_UNLOCK(so); 5386 soisconnecting(so); 5387 } 5388 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); 5389 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); 5390 5391 /* initialize authentication parameters for the assoc */ 5392 sctp_initialize_auth_params(inp, stcb); 5393 5394 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED); 5395 SCTP_TCB_UNLOCK(stcb); 5396out_now: 5397 if (create_lock_on) { 5398 SCTP_ASOC_CREATE_UNLOCK(inp); 5399 } 5400 SCTP_INP_DECR_REF(inp); 5401 return error; 5402} 5403 5404#endif 5405 5406int 5407sctp_listen(struct socket *so, int backlog, struct thread *p) 5408{ 5409 /* 5410 * Note this module depends on the protocol processing being called 5411 * AFTER any socket level flags and backlog are applied to the 5412 * socket. The traditional way that the socket flags are applied is 5413 * AFTER protocol processing. We have made a change to the 5414 * sys/kern/uipc_socket.c module to reverse this but this MUST be in 5415 * place if the socket API for SCTP is to work properly. 5416 */ 5417 5418 int error = 0; 5419 struct sctp_inpcb *inp; 5420 5421 inp = (struct sctp_inpcb *)so->so_pcb; 5422 if (inp == 0) { 5423 /* I made the same as TCP since we are not setup? */ 5424 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5425 return (ECONNRESET); 5426 } 5427 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) { 5428 /* See if we have a listener */ 5429 struct sctp_inpcb *tinp; 5430 union sctp_sockstore store, *sp; 5431 5432 sp = &store; 5433 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) { 5434 /* not bound all */ 5435 struct sctp_laddr *laddr; 5436 5437 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 5438 memcpy(&store, &laddr->ifa->address, sizeof(store)); 5439 switch (sp->sa.sa_family) { 5440#ifdef INET 5441 case AF_INET: 5442 sp->sin.sin_port = inp->sctp_lport; 5443 break; 5444#endif 5445#ifdef INET6 5446 case AF_INET6: 5447 sp->sin6.sin6_port = inp->sctp_lport; 5448 break; 5449#endif 5450 default: 5451 break; 5452 } 5453 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id); 5454 if (tinp && (tinp != inp) && 5455 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) && 5456 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 5457 (tinp->sctp_socket->so_qlimit)) { 5458 /* 5459 * we have a listener already and 5460 * its not this inp. 5461 */ 5462 SCTP_INP_DECR_REF(tinp); 5463 return (EADDRINUSE); 5464 } else if (tinp) { 5465 SCTP_INP_DECR_REF(tinp); 5466 } 5467 } 5468 } else { 5469 /* Setup a local addr bound all */ 5470 memset(&store, 0, sizeof(store)); 5471 switch (sp->sa.sa_family) { 5472#ifdef INET 5473 case AF_INET: 5474 store.sin.sin_port = inp->sctp_lport; 5475 break; 5476#endif 5477#ifdef INET6 5478 case AF_INET6: 5479 sp->sin6.sin6_port = inp->sctp_lport; 5480 break; 5481#endif 5482 default: 5483 break; 5484 } 5485#ifdef INET6 5486 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { 5487 store.sa.sa_family = AF_INET6; 5488 store.sa.sa_len = sizeof(struct sockaddr_in6); 5489 } 5490#endif 5491#ifdef INET 5492 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) { 5493 store.sa.sa_family = AF_INET; 5494 store.sa.sa_len = sizeof(struct sockaddr_in); 5495 } 5496#endif 5497 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id); 5498 if (tinp && (tinp != inp) && 5499 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) && 5500 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && 5501 (tinp->sctp_socket->so_qlimit)) { 5502 /* 5503 * we have a listener already and its not 5504 * this inp. 5505 */ 5506 SCTP_INP_DECR_REF(tinp); 5507 return (EADDRINUSE); 5508 } else if (tinp) { 5509 SCTP_INP_DECR_REF(inp); 5510 } 5511 } 5512 } 5513 SCTP_INP_RLOCK(inp); 5514#ifdef SCTP_LOCK_LOGGING 5515 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) { 5516 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK); 5517 } 5518#endif 5519 SOCK_LOCK(so); 5520 error = solisten_proto_check(so); 5521 if (error) { 5522 SOCK_UNLOCK(so); 5523 SCTP_INP_RUNLOCK(inp); 5524 return (error); 5525 } 5526 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) && 5527 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { 5528 /* 5529 * The unlucky case - We are in the tcp pool with this guy. 5530 * - Someone else is in the main inp slot. - We must move 5531 * this guy (the listener) to the main slot - We must then 5532 * move the guy that was listener to the TCP Pool. 5533 */ 5534 if (sctp_swap_inpcb_for_listen(inp)) { 5535 goto in_use; 5536 } 5537 } 5538 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && 5539 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { 5540 /* We are already connected AND the TCP model */ 5541in_use: 5542 SCTP_INP_RUNLOCK(inp); 5543 SOCK_UNLOCK(so); 5544 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE); 5545 return (EADDRINUSE); 5546 } 5547 SCTP_INP_RUNLOCK(inp); 5548 if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) { 5549 /* We must do a bind. */ 5550 SOCK_UNLOCK(so); 5551 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) { 5552 /* bind error, probably perm */ 5553 return (error); 5554 } 5555 SOCK_LOCK(so); 5556 } 5557 /* It appears for 7.0 and on, we must always call this. */ 5558 solisten_proto(so, backlog); 5559 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 5560 /* remove the ACCEPTCONN flag for one-to-many sockets */ 5561 so->so_options &= ~SO_ACCEPTCONN; 5562 } 5563 if (backlog == 0) { 5564 /* turning off listen */ 5565 so->so_options &= ~SO_ACCEPTCONN; 5566 } 5567 SOCK_UNLOCK(so); 5568 return (error); 5569} 5570 5571static int sctp_defered_wakeup_cnt = 0; 5572 5573int 5574sctp_accept(struct socket *so, struct sockaddr **addr) 5575{ 5576 struct sctp_tcb *stcb; 5577 struct sctp_inpcb *inp; 5578 union sctp_sockstore store; 5579 5580#ifdef INET6 5581 int error; 5582 5583#endif 5584 inp = (struct sctp_inpcb *)so->so_pcb; 5585 5586 if (inp == 0) { 5587 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5588 return (ECONNRESET); 5589 } 5590 SCTP_INP_RLOCK(inp); 5591 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { 5592 SCTP_INP_RUNLOCK(inp); 5593 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); 5594 return (EOPNOTSUPP); 5595 } 5596 if (so->so_state & SS_ISDISCONNECTED) { 5597 SCTP_INP_RUNLOCK(inp); 5598 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED); 5599 return (ECONNABORTED); 5600 } 5601 stcb = LIST_FIRST(&inp->sctp_asoc_list); 5602 if (stcb == NULL) { 5603 SCTP_INP_RUNLOCK(inp); 5604 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5605 return (ECONNRESET); 5606 } 5607 SCTP_TCB_LOCK(stcb); 5608 SCTP_INP_RUNLOCK(inp); 5609 store = stcb->asoc.primary_destination->ro._l_addr; 5610 stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE; 5611 SCTP_TCB_UNLOCK(stcb); 5612 switch (store.sa.sa_family) { 5613#ifdef INET 5614 case AF_INET: 5615 { 5616 struct sockaddr_in *sin; 5617 5618 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 5619 if (sin == NULL) 5620 return (ENOMEM); 5621 sin->sin_family = AF_INET; 5622 sin->sin_len = sizeof(*sin); 5623 sin->sin_port = ((struct sockaddr_in *)&store)->sin_port; 5624 sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr; 5625 *addr = (struct sockaddr *)sin; 5626 break; 5627 } 5628#endif 5629#ifdef INET6 5630 case AF_INET6: 5631 { 5632 struct sockaddr_in6 *sin6; 5633 5634 SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6); 5635 if (sin6 == NULL) 5636 return (ENOMEM); 5637 sin6->sin6_family = AF_INET6; 5638 sin6->sin6_len = sizeof(*sin6); 5639 sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port; 5640 5641 sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr; 5642 if ((error = sa6_recoverscope(sin6)) != 0) { 5643 SCTP_FREE_SONAME(sin6); 5644 return (error); 5645 } 5646 *addr = (struct sockaddr *)sin6; 5647 break; 5648 } 5649#endif 5650 default: 5651 /* TSNH */ 5652 break; 5653 } 5654 /* Wake any delayed sleep action */ 5655 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { 5656 SCTP_INP_WLOCK(inp); 5657 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE; 5658 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) { 5659 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT; 5660 SCTP_INP_WUNLOCK(inp); 5661 SOCKBUF_LOCK(&inp->sctp_socket->so_snd); 5662 if (sowriteable(inp->sctp_socket)) { 5663 sowwakeup_locked(inp->sctp_socket); 5664 } else { 5665 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd); 5666 } 5667 SCTP_INP_WLOCK(inp); 5668 } 5669 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) { 5670 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT; 5671 SCTP_INP_WUNLOCK(inp); 5672 SOCKBUF_LOCK(&inp->sctp_socket->so_rcv); 5673 if (soreadable(inp->sctp_socket)) { 5674 sctp_defered_wakeup_cnt++; 5675 sorwakeup_locked(inp->sctp_socket); 5676 } else { 5677 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv); 5678 } 5679 SCTP_INP_WLOCK(inp); 5680 } 5681 SCTP_INP_WUNLOCK(inp); 5682 } 5683 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { 5684 SCTP_TCB_LOCK(stcb); 5685 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7); 5686 } 5687 return (0); 5688} 5689 5690#ifdef INET 5691int 5692sctp_ingetaddr(struct socket *so, struct sockaddr **addr) 5693{ 5694 struct sockaddr_in *sin; 5695 uint32_t vrf_id; 5696 struct sctp_inpcb *inp; 5697 struct sctp_ifa *sctp_ifa; 5698 5699 /* 5700 * Do the malloc first in case it blocks. 5701 */ 5702 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 5703 if (sin == NULL) 5704 return (ENOMEM); 5705 sin->sin_family = AF_INET; 5706 sin->sin_len = sizeof(*sin); 5707 inp = (struct sctp_inpcb *)so->so_pcb; 5708 if (!inp) { 5709 SCTP_FREE_SONAME(sin); 5710 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5711 return ECONNRESET; 5712 } 5713 SCTP_INP_RLOCK(inp); 5714 sin->sin_port = inp->sctp_lport; 5715 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { 5716 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) { 5717 struct sctp_tcb *stcb; 5718 struct sockaddr_in *sin_a; 5719 struct sctp_nets *net; 5720 int fnd; 5721 5722 stcb = LIST_FIRST(&inp->sctp_asoc_list); 5723 if (stcb == NULL) { 5724 goto notConn; 5725 } 5726 fnd = 0; 5727 sin_a = NULL; 5728 SCTP_TCB_LOCK(stcb); 5729 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 5730 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 5731 if (sin_a == NULL) 5732 /* this will make coverity happy */ 5733 continue; 5734 5735 if (sin_a->sin_family == AF_INET) { 5736 fnd = 1; 5737 break; 5738 } 5739 } 5740 if ((!fnd) || (sin_a == NULL)) { 5741 /* punt */ 5742 SCTP_TCB_UNLOCK(stcb); 5743 goto notConn; 5744 } 5745 vrf_id = inp->def_vrf_id; 5746 sctp_ifa = sctp_source_address_selection(inp, 5747 stcb, 5748 (sctp_route_t *) & net->ro, 5749 net, 0, vrf_id); 5750 if (sctp_ifa) { 5751 sin->sin_addr = sctp_ifa->address.sin.sin_addr; 5752 sctp_free_ifa(sctp_ifa); 5753 } 5754 SCTP_TCB_UNLOCK(stcb); 5755 } else { 5756 /* For the bound all case you get back 0 */ 5757 notConn: 5758 sin->sin_addr.s_addr = 0; 5759 } 5760 5761 } else { 5762 /* Take the first IPv4 address in the list */ 5763 struct sctp_laddr *laddr; 5764 int fnd = 0; 5765 5766 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { 5767 if (laddr->ifa->address.sa.sa_family == AF_INET) { 5768 struct sockaddr_in *sin_a; 5769 5770 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa; 5771 sin->sin_addr = sin_a->sin_addr; 5772 fnd = 1; 5773 break; 5774 } 5775 } 5776 if (!fnd) { 5777 SCTP_FREE_SONAME(sin); 5778 SCTP_INP_RUNLOCK(inp); 5779 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 5780 return ENOENT; 5781 } 5782 } 5783 SCTP_INP_RUNLOCK(inp); 5784 (*addr) = (struct sockaddr *)sin; 5785 return (0); 5786} 5787 5788int 5789sctp_peeraddr(struct socket *so, struct sockaddr **addr) 5790{ 5791 struct sockaddr_in *sin = (struct sockaddr_in *)*addr; 5792 int fnd; 5793 struct sockaddr_in *sin_a; 5794 struct sctp_inpcb *inp; 5795 struct sctp_tcb *stcb; 5796 struct sctp_nets *net; 5797 5798 /* Do the malloc first in case it blocks. */ 5799 inp = (struct sctp_inpcb *)so->so_pcb; 5800 if ((inp == NULL) || 5801 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) { 5802 /* UDP type and listeners will drop out here */ 5803 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); 5804 return (ENOTCONN); 5805 } 5806 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); 5807 if (sin == NULL) 5808 return (ENOMEM); 5809 sin->sin_family = AF_INET; 5810 sin->sin_len = sizeof(*sin); 5811 5812 /* We must recapture incase we blocked */ 5813 inp = (struct sctp_inpcb *)so->so_pcb; 5814 if (!inp) { 5815 SCTP_FREE_SONAME(sin); 5816 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5817 return ECONNRESET; 5818 } 5819 SCTP_INP_RLOCK(inp); 5820 stcb = LIST_FIRST(&inp->sctp_asoc_list); 5821 if (stcb) { 5822 SCTP_TCB_LOCK(stcb); 5823 } 5824 SCTP_INP_RUNLOCK(inp); 5825 if (stcb == NULL) { 5826 SCTP_FREE_SONAME(sin); 5827 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); 5828 return ECONNRESET; 5829 } 5830 fnd = 0; 5831 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { 5832 sin_a = (struct sockaddr_in *)&net->ro._l_addr; 5833 if (sin_a->sin_family == AF_INET) { 5834 fnd = 1; 5835 sin->sin_port = stcb->rport; 5836 sin->sin_addr = sin_a->sin_addr; 5837 break; 5838 } 5839 } 5840 SCTP_TCB_UNLOCK(stcb); 5841 if (!fnd) { 5842 /* No IPv4 address */ 5843 SCTP_FREE_SONAME(sin); 5844 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); 5845 return ENOENT; 5846 } 5847 (*addr) = (struct sockaddr *)sin; 5848 return (0); 5849} 5850 5851#ifdef INET 5852struct pr_usrreqs sctp_usrreqs = { 5853 .pru_abort = sctp_abort, 5854 .pru_accept = sctp_accept, 5855 .pru_attach = sctp_attach, 5856 .pru_bind = sctp_bind, 5857 .pru_connect = sctp_connect, 5858 .pru_control = in_control, 5859 .pru_close = sctp_close, 5860 .pru_detach = sctp_close, 5861 .pru_sopoll = sopoll_generic, 5862 .pru_flush = sctp_flush, 5863 .pru_disconnect = sctp_disconnect, 5864 .pru_listen = sctp_listen, 5865 .pru_peeraddr = sctp_peeraddr, 5866 .pru_send = sctp_sendm, 5867 .pru_shutdown = sctp_shutdown, 5868 .pru_sockaddr = sctp_ingetaddr, 5869 .pru_sosend = sctp_sosend, 5870 .pru_soreceive = sctp_soreceive 5871}; 5872 5873#endif 5874#endif 5875