2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * a) Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
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11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the distribution.
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15 * contributors may be used to endorse or promote products derived
16 * from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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28 * THE POSSIBILITY OF SUCH DAMAGE.
31 /* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $ */
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
35 #include <netinet/sctp_os.h>
37 #include <netinet/sctp_pcb.h>
38 #include <netinet/sctp_header.h>
39 #include <netinet/sctp_var.h>
41 #include <netinet6/sctp6_var.h>
43 #include <netinet/sctp_sysctl.h>
44 #include <netinet/sctp_output.h>
45 #include <netinet/sctp_uio.h>
46 #include <netinet/sctp_asconf.h>
47 #include <netinet/sctputil.h>
48 #include <netinet/sctp_indata.h>
49 #include <netinet/sctp_timer.h>
50 #include <netinet/sctp_auth.h>
51 #include <netinet/sctp_bsd_addr.h>
59 /* Init the SCTP pcb in sctp_pcb.c */
64 if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
65 sctp_max_chunks_on_queue = (nmbclusters / 8);
67 * Allow a user to take no more than 1/2 the number of clusters or
68 * the SB_MAX whichever is smaller for the send window.
70 sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
71 sctp_sendspace = min((min(SB_MAX, sb_max_adj)),
72 (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
74 * Now for the recv window, should we take the same amount? or
75 * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
76 * now I will just copy.
78 sctp_recvspace = sctp_sendspace;
86 * cleanup of the sctppcbinfo structure.
87 * Assumes that the sctppcbinfo lock is held.
90 sctp_pcbinfo_cleanup(void)
92 /* free the hash tables */
93 if (sctppcbinfo.sctp_asochash != NULL)
94 SCTP_HASH_FREE(sctppcbinfo.sctp_asochash, sctppcbinfo.hashasocmark);
95 if (sctppcbinfo.sctp_ephash != NULL)
96 SCTP_HASH_FREE(sctppcbinfo.sctp_ephash, sctppcbinfo.hashmark);
97 if (sctppcbinfo.sctp_tcpephash != NULL)
98 SCTP_HASH_FREE(sctppcbinfo.sctp_tcpephash, sctppcbinfo.hashtcpmark);
99 if (sctppcbinfo.sctp_restarthash != NULL)
100 SCTP_HASH_FREE(sctppcbinfo.sctp_restarthash, sctppcbinfo.hashrestartmark);
105 sctp_pathmtu_adjustment(struct sctp_inpcb *inp,
106 struct sctp_tcb *stcb,
107 struct sctp_nets *net,
110 struct sctp_tmit_chunk *chk;
112 /* Adjust that too */
113 stcb->asoc.smallest_mtu = nxtsz;
114 /* now off to subtract IP_DF flag if needed */
115 #ifdef SCTP_PRINT_FOR_B_AND_M
116 SCTP_PRINTF("sctp_pathmtu_adjust called inp:%p stcb:%p net:%p nxtsz:%d\n",
117 inp, stcb, net, nxtsz);
119 TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
120 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) {
121 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
124 TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
125 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) {
127 * For this guy we also mark for immediate resend
128 * since we sent to big of chunk
130 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
131 if (chk->sent != SCTP_DATAGRAM_RESEND) {
132 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
134 chk->sent = SCTP_DATAGRAM_RESEND;
135 chk->rec.data.doing_fast_retransmit = 0;
136 if (sctp_logging_level & SCTP_FLIGHT_LOGGING_ENABLE) {
137 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
138 chk->whoTo->flight_size,
140 (uintptr_t) chk->whoTo,
141 chk->rec.data.TSN_seq);
143 /* Clear any time so NO RTT is being done */
145 sctp_flight_size_decrease(chk);
146 sctp_total_flight_decrease(stcb, chk);
152 sctp_notify_mbuf(struct sctp_inpcb *inp,
153 struct sctp_tcb *stcb,
154 struct sctp_nets *net,
159 int totsz, tmr_stopped = 0;
163 if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
164 (ip == NULL) || (sh == NULL)) {
166 SCTP_TCB_UNLOCK(stcb);
170 /* First job is to verify the vtag matches what I would send */
171 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
172 SCTP_TCB_UNLOCK(stcb);
175 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
177 if (icmph->icmp_type != ICMP_UNREACH) {
178 /* We only care about unreachable */
179 SCTP_TCB_UNLOCK(stcb);
182 if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
183 /* not a unreachable message due to frag. */
184 SCTP_TCB_UNLOCK(stcb);
189 nxtsz = ntohs(icmph->icmp_seq);
192 * old type router that does not tell us what the next size
193 * mtu is. Rats we will have to guess (in a educated fashion
196 nxtsz = find_next_best_mtu(totsz);
198 /* Stop any PMTU timer */
199 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
201 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
202 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
204 /* Adjust destination size limit */
205 if (net->mtu > nxtsz) {
208 /* now what about the ep? */
209 if (stcb->asoc.smallest_mtu > nxtsz) {
210 #ifdef SCTP_PRINT_FOR_B_AND_M
211 SCTP_PRINTF("notify_mbuf (ICMP) calls sctp_pathmtu_adjust mtu:%d\n",
214 sctp_pathmtu_adjustment(inp, stcb, net, nxtsz);
217 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
219 SCTP_TCB_UNLOCK(stcb);
224 sctp_notify(struct sctp_inpcb *inp,
228 struct sctp_tcb *stcb,
229 struct sctp_nets *net)
232 if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
233 (sh == NULL) || (to == NULL)) {
236 /* First job is to verify the vtag matches what I would send */
237 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
240 /* FIX ME FIX ME PROTOPT i.e. no SCTP should ALWAYS be an ABORT */
242 if ((error == EHOSTUNREACH) || /* Host is not reachable */
243 (error == EHOSTDOWN) || /* Host is down */
244 (error == ECONNREFUSED) || /* Host refused the connection, (not
246 (error == ENOPROTOOPT) /* SCTP is not present on host */
249 * Hmm reachablity problems we must examine closely. If its
250 * not reachable, we may have lost a network. Or if there is
251 * NO protocol at the other end named SCTP. well we consider
254 if ((error == EHOSTUNREACH) || (error == EHOSTDOWN)) {
255 if (net->dest_state & SCTP_ADDR_REACHABLE) {
256 /* Ok that destination is NOT reachable */
257 SCTP_PRINTF("ICMP (thresh %d/%d) takes interface %p down\n",
259 net->failure_threshold,
262 net->dest_state &= ~SCTP_ADDR_REACHABLE;
263 net->dest_state |= SCTP_ADDR_NOT_REACHABLE;
264 net->error_count = net->failure_threshold + 1;
265 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
266 stcb, SCTP_FAILED_THRESHOLD,
270 SCTP_TCB_UNLOCK(stcb);
274 * Here the peer is either playing tricks on us,
275 * including an address that belongs to someone who
276 * does not support SCTP OR was a userland
277 * implementation that shutdown and now is dead. In
278 * either case treat it like a OOTB abort with no
281 sctp_abort_notification(stcb, SCTP_PEER_FAULTY);
282 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
283 /* no need to unlock here, since the TCB is gone */
286 /* Send all others to the app */
288 SCTP_TCB_UNLOCK(stcb);
290 if (inp->sctp_socket) {
291 #ifdef SCTP_LOCK_LOGGING
292 if (sctp_logging_level & SCTP_LOCK_LOGGING_ENABLE) {
293 sctp_log_lock(inp, stcb, SCTP_LOG_LOCK_SOCK);
296 SOCK_LOCK(inp->sctp_socket);
297 inp->sctp_socket->so_error = error;
298 sctp_sowwakeup(inp, inp->sctp_socket);
299 SOCK_UNLOCK(inp->sctp_socket);
305 sctp_ctlinput(cmd, sa, vip)
314 /* FIX, for non-bsd is this right? */
315 vrf_id = SCTP_DEFAULT_VRFID;
316 if (sa->sa_family != AF_INET ||
317 ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
320 if (PRC_IS_REDIRECT(cmd)) {
322 } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
326 struct sctp_inpcb *inp = NULL;
327 struct sctp_tcb *stcb = NULL;
328 struct sctp_nets *net = NULL;
329 struct sockaddr_in to, from;
331 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
332 bzero(&to, sizeof(to));
333 bzero(&from, sizeof(from));
334 from.sin_family = to.sin_family = AF_INET;
335 from.sin_len = to.sin_len = sizeof(to);
336 from.sin_port = sh->src_port;
337 from.sin_addr = ip->ip_src;
338 to.sin_port = sh->dest_port;
339 to.sin_addr = ip->ip_dst;
342 * 'to' holds the dest of the packet that failed to be sent.
343 * 'from' holds our local endpoint address. Thus we reverse
344 * the to and the from in the lookup.
346 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from,
347 (struct sockaddr *)&to,
348 &inp, &net, 1, vrf_id);
349 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
350 if (cmd != PRC_MSGSIZE) {
353 if (cmd == PRC_HOSTDEAD) {
356 cm = inetctlerrmap[cmd];
358 sctp_notify(inp, cm, sh,
359 (struct sockaddr *)&to, stcb,
362 /* handle possible ICMP size messages */
363 sctp_notify_mbuf(inp, stcb, net, ip, sh);
366 if ((stcb == NULL) && (inp != NULL)) {
367 /* reduce ref-count */
369 SCTP_INP_DECR_REF(inp);
370 SCTP_INP_WUNLOCK(inp);
378 sctp_getcred(SYSCTL_HANDLER_ARGS)
381 struct sockaddr_in addrs[2];
382 struct sctp_inpcb *inp;
383 struct sctp_nets *net;
384 struct sctp_tcb *stcb;
388 /* FIX, for non-bsd is this right? */
389 vrf_id = SCTP_DEFAULT_VRFID;
391 error = priv_check(req->td, PRIV_NETINET_GETCRED);
396 error = SYSCTL_IN(req, addrs, sizeof(addrs));
400 stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]),
402 &inp, &net, 1, vrf_id);
403 if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
404 if ((inp != NULL) && (stcb == NULL)) {
405 /* reduce ref-count */
407 SCTP_INP_DECR_REF(inp);
413 SCTP_TCB_UNLOCK(stcb);
415 * We use the write lock here, only since in the error leg we need
416 * it. If we used RLOCK, then we would have to
417 * wlock/decr/unlock/rlock. Which in theory could create a hole.
418 * Better to use higher wlock.
422 error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
424 SCTP_INP_WUNLOCK(inp);
427 cru2x(inp->sctp_socket->so_cred, &xuc);
428 SCTP_INP_WUNLOCK(inp);
429 error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
434 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
435 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
439 sctp_abort(struct socket *so)
441 struct sctp_inpcb *inp;
444 inp = (struct sctp_inpcb *)so->so_pcb;
449 flags = inp->sctp_flags;
450 #ifdef SCTP_LOG_CLOSING
451 sctp_log_closing(inp, NULL, 17);
453 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
454 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
455 #ifdef SCTP_LOG_CLOSING
456 sctp_log_closing(inp, NULL, 16);
458 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
459 SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
461 SCTP_SB_CLEAR(so->so_snd);
463 * same for the rcv ones, they are only here for the
466 SCTP_SB_CLEAR(so->so_rcv);
468 /* Now null out the reference, we are completely detached. */
472 flags = inp->sctp_flags;
473 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
474 goto sctp_must_try_again;
481 sctp_attach(struct socket *so, int proto, struct thread *p)
483 struct sctp_inpcb *inp;
484 struct inpcb *ip_inp;
486 uint32_t vrf_id = SCTP_DEFAULT_VRFID;
492 inp = (struct sctp_inpcb *)so->so_pcb;
496 error = SCTP_SORESERVE(so, sctp_sendspace, sctp_recvspace);
500 error = sctp_inpcb_alloc(so, vrf_id);
504 inp = (struct sctp_inpcb *)so->so_pcb;
507 inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */
508 ip_inp = &inp->ip_inp.inp;
509 ip_inp->inp_vflag |= INP_IPV4;
510 ip_inp->inp_ip_ttl = ip_defttl;
513 error = ipsec_init_pcbpolicy(so, &ip_inp->inp_sp);
514 #ifdef SCTP_LOG_CLOSING
515 sctp_log_closing(inp, NULL, 17);
518 flags = inp->sctp_flags;
519 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
520 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
521 #ifdef SCTP_LOG_CLOSING
522 sctp_log_closing(inp, NULL, 15);
524 SCTP_INP_WUNLOCK(inp);
525 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
526 SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
528 SCTP_INP_WUNLOCK(inp);
533 SCTP_INP_WUNLOCK(inp);
538 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
540 struct sctp_inpcb *inp;
544 if (addr && addr->sa_family != AF_INET)
545 /* must be a v4 address! */
548 if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) {
551 inp = (struct sctp_inpcb *)so->so_pcb;
555 error = sctp_inpcb_bind(so, addr, NULL, p);
560 sctp_close(struct socket *so)
562 struct sctp_inpcb *inp;
565 inp = (struct sctp_inpcb *)so->so_pcb;
570 * Inform all the lower layer assoc that we are done.
573 flags = inp->sctp_flags;
574 #ifdef SCTP_LOG_CLOSING
575 sctp_log_closing(inp, NULL, 17);
577 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
578 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
579 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
580 (so->so_rcv.sb_cc > 0)) {
581 #ifdef SCTP_LOG_CLOSING
582 sctp_log_closing(inp, NULL, 13);
584 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
585 SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
587 #ifdef SCTP_LOG_CLOSING
588 sctp_log_closing(inp, NULL, 14);
590 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
591 SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
594 * The socket is now detached, no matter what the state of
595 * the SCTP association.
598 SCTP_SB_CLEAR(so->so_snd);
600 * same for the rcv ones, they are only here for the
603 SCTP_SB_CLEAR(so->so_rcv);
605 /* Now null out the reference, we are completely detached. */
609 flags = inp->sctp_flags;
610 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
611 goto sctp_must_try_again;
619 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
620 struct mbuf *control, struct thread *p);
624 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
625 struct mbuf *control, struct thread *p)
627 struct sctp_inpcb *inp;
630 inp = (struct sctp_inpcb *)so->so_pcb;
633 sctp_m_freem(control);
639 /* Got to have an to address if we are NOT a connected socket */
640 if ((addr == NULL) &&
641 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
642 (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))
645 } else if (addr == NULL) {
646 error = EDESTADDRREQ;
649 sctp_m_freem(control);
655 if (addr->sa_family != AF_INET) {
656 /* must be a v4 address! */
659 sctp_m_freem(control);
662 error = EDESTADDRREQ;
667 /* now what about control */
670 SCTP_PRINTF("huh? control set?\n");
671 sctp_m_freem(inp->control);
674 inp->control = control;
678 SCTP_BUF_NEXT(inp->pkt_last) = m;
681 inp->pkt_last = inp->pkt = m;
684 /* FreeBSD uses a flag passed */
685 ((flags & PRUS_MORETOCOME) == 0)
688 * note with the current version this code will only be used
689 * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
690 * re-defining sosend to use the sctp_sosend. One can
691 * optionally switch back to this code (by changing back the
692 * definitions) but this is not advisable. This code is used
693 * by FreeBSD when sending a file with sendfile() though.
697 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
707 sctp_disconnect(struct socket *so)
709 struct sctp_inpcb *inp;
711 inp = (struct sctp_inpcb *)so->so_pcb;
716 if (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
717 if (SCTP_LIST_EMPTY(&inp->sctp_asoc_list)) {
719 SCTP_INP_RUNLOCK(inp);
722 struct sctp_association *asoc;
723 struct sctp_tcb *stcb;
725 stcb = LIST_FIRST(&inp->sctp_asoc_list);
727 SCTP_INP_RUNLOCK(inp);
732 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
733 /* We are about to be freed, out of here */
734 SCTP_TCB_UNLOCK(stcb);
735 SCTP_INP_RUNLOCK(inp);
738 if (((so->so_options & SO_LINGER) &&
739 (so->so_linger == 0)) ||
740 (so->so_rcv.sb_cc > 0)) {
741 if (SCTP_GET_STATE(asoc) !=
742 SCTP_STATE_COOKIE_WAIT) {
743 /* Left with Data unread */
746 err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA);
752 struct sctp_paramhdr *ph;
754 ph = mtod(err, struct sctp_paramhdr *);
755 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
756 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
757 ph->param_length = htons(SCTP_BUF_LEN(err));
759 sctp_send_abort_tcb(stcb, err);
760 SCTP_STAT_INCR_COUNTER32(sctps_aborted);
762 SCTP_INP_RUNLOCK(inp);
763 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
764 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
765 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
767 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
768 /* No unlock tcb assoc is gone */
771 if (TAILQ_EMPTY(&asoc->send_queue) &&
772 TAILQ_EMPTY(&asoc->sent_queue) &&
773 (asoc->stream_queue_cnt == 0)) {
774 /* there is nothing queued to send, so done */
775 if (asoc->locked_on_sending) {
778 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
779 (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
780 /* only send SHUTDOWN 1st time thru */
781 sctp_stop_timers_for_shutdown(stcb);
782 sctp_send_shutdown(stcb,
783 stcb->asoc.primary_destination);
784 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3);
785 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
786 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
787 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
789 asoc->state = SCTP_STATE_SHUTDOWN_SENT;
790 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
792 asoc->primary_destination);
793 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
795 asoc->primary_destination);
799 * we still got (or just got) data to send,
800 * so set SHUTDOWN_PENDING
803 * XXX sockets draft says that SCTP_EOF
804 * should be sent with no data. currently,
805 * we will allow user data to be sent first
806 * and move to SHUTDOWN-PENDING
808 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
809 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
810 asoc->primary_destination);
811 if (asoc->locked_on_sending) {
812 /* Locked to send out the data */
813 struct sctp_stream_queue_pending *sp;
815 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
817 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
818 asoc->locked_on_sending->stream_no);
820 if ((sp->length == 0) && (sp->msg_is_complete == 0))
821 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
824 if (TAILQ_EMPTY(&asoc->send_queue) &&
825 TAILQ_EMPTY(&asoc->sent_queue) &&
826 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
830 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
831 0, M_DONTWAIT, 1, MT_DATA);
837 struct sctp_paramhdr *ph;
840 SCTP_BUF_LEN(op_err) =
841 (sizeof(struct sctp_paramhdr) + sizeof(uint32_t));
843 struct sctp_paramhdr *);
844 ph->param_type = htons(
845 SCTP_CAUSE_USER_INITIATED_ABT);
846 ph->param_length = htons(SCTP_BUF_LEN(op_err));
847 ippp = (uint32_t *) (ph + 1);
848 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4);
850 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
851 sctp_send_abort_tcb(stcb, op_err);
852 SCTP_STAT_INCR_COUNTER32(sctps_aborted);
853 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
854 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
855 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
857 SCTP_INP_RUNLOCK(inp);
858 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
862 SCTP_TCB_UNLOCK(stcb);
863 SCTP_INP_RUNLOCK(inp);
868 /* UDP model does not support this */
869 SCTP_INP_RUNLOCK(inp);
875 sctp_shutdown(struct socket *so)
877 struct sctp_inpcb *inp;
879 inp = (struct sctp_inpcb *)so->so_pcb;
884 /* For UDP model this is a invalid call */
885 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
886 /* Restore the flags that the soshutdown took away. */
887 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
888 /* This proc will wakeup for read and do nothing (I hope) */
889 SCTP_INP_RUNLOCK(inp);
893 * Ok if we reach here its the TCP model and it is either a SHUT_WR
894 * or SHUT_RDWR. This means we put the shutdown flag against it.
897 struct sctp_tcb *stcb;
898 struct sctp_association *asoc;
902 stcb = LIST_FIRST(&inp->sctp_asoc_list);
905 * Ok we hit the case that the shutdown call was
906 * made after an abort or something. Nothing to do
909 SCTP_INP_RUNLOCK(inp);
914 if (TAILQ_EMPTY(&asoc->send_queue) &&
915 TAILQ_EMPTY(&asoc->sent_queue) &&
916 (asoc->stream_queue_cnt == 0)) {
917 if (asoc->locked_on_sending) {
920 /* there is nothing queued to send, so I'm done... */
921 if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
922 /* only send SHUTDOWN the first time through */
923 sctp_stop_timers_for_shutdown(stcb);
924 sctp_send_shutdown(stcb,
925 stcb->asoc.primary_destination);
926 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3);
927 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
928 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
929 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
931 asoc->state = SCTP_STATE_SHUTDOWN_SENT;
932 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
934 asoc->primary_destination);
935 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
937 asoc->primary_destination);
941 * we still got (or just got) data to send, so set
944 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
945 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
946 asoc->primary_destination);
948 if (asoc->locked_on_sending) {
949 /* Locked to send out the data */
950 struct sctp_stream_queue_pending *sp;
952 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
954 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
955 asoc->locked_on_sending->stream_no);
957 if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
958 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
962 if (TAILQ_EMPTY(&asoc->send_queue) &&
963 TAILQ_EMPTY(&asoc->sent_queue) &&
964 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
968 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
969 0, M_DONTWAIT, 1, MT_DATA);
971 /* Fill in the user initiated abort */
972 struct sctp_paramhdr *ph;
975 SCTP_BUF_LEN(op_err) =
976 sizeof(struct sctp_paramhdr) + sizeof(uint32_t);
978 struct sctp_paramhdr *);
979 ph->param_type = htons(
980 SCTP_CAUSE_USER_INITIATED_ABT);
981 ph->param_length = htons(SCTP_BUF_LEN(op_err));
982 ippp = (uint32_t *) (ph + 1);
983 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
985 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
986 sctp_abort_an_association(stcb->sctp_ep, stcb,
987 SCTP_RESPONSE_TO_USER_REQ,
992 SCTP_TCB_UNLOCK(stcb);
995 SCTP_INP_RUNLOCK(inp);
1000 * copies a "user" presentable address and removes embedded scope, etc.
1001 * returns 0 on success, 1 on error
1004 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1006 struct sockaddr_in6 lsa6;
1008 sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1010 memcpy(ss, sa, sa->sa_len);
1017 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1018 struct sctp_tcb *stcb,
1020 struct sockaddr_storage *sas,
1023 struct sctp_ifn *sctp_ifn;
1024 struct sctp_ifa *sctp_ifa;
1025 int loopback_scope, ipv4_local_scope, local_scope, site_scope;
1027 int ipv4_addr_legal, ipv6_addr_legal;
1028 struct sctp_vrf *vrf;
1035 /* Turn on all the appropriate scope */
1036 loopback_scope = stcb->asoc.loopback_scope;
1037 ipv4_local_scope = stcb->asoc.ipv4_local_scope;
1038 local_scope = stcb->asoc.local_scope;
1039 site_scope = stcb->asoc.site_scope;
1041 /* Turn on ALL scope, since we look at the EP */
1042 loopback_scope = ipv4_local_scope = local_scope =
1045 ipv4_addr_legal = ipv6_addr_legal = 0;
1046 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1047 ipv6_addr_legal = 1;
1048 if (SCTP_IPV6_V6ONLY(inp) == 0) {
1049 ipv4_addr_legal = 1;
1052 ipv4_addr_legal = 1;
1054 vrf = sctp_find_vrf(vrf_id);
1058 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1059 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1060 if ((loopback_scope == 0) &&
1061 SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1062 /* Skip loopback if loopback_scope not set */
1065 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1068 * For the BOUND-ALL case, the list
1069 * associated with a TCB is Always
1070 * considered a reverse list.. i.e.
1071 * it lists addresses that are NOT
1072 * part of the association. If this
1073 * is one of those we must skip it.
1075 if (sctp_is_addr_restricted(stcb,
1080 if ((sctp_ifa->address.sa.sa_family == AF_INET) &&
1081 (ipv4_addr_legal)) {
1082 struct sockaddr_in *sin;
1084 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
1085 if (sin->sin_addr.s_addr == 0) {
1087 * we skip unspecifed
1092 if ((ipv4_local_scope == 0) &&
1093 (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1096 if (inp->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) {
1097 in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1098 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1099 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1100 actual += sizeof(sizeof(struct sockaddr_in6));
1102 memcpy(sas, sin, sizeof(*sin));
1103 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1104 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1105 actual += sizeof(*sin);
1107 if (actual >= limit) {
1110 } else if ((sctp_ifa->address.sa.sa_family == AF_INET6) &&
1111 (ipv6_addr_legal)) {
1112 struct sockaddr_in6 *sin6;
1114 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
1115 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1117 * we skip unspecifed
1122 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1123 if (local_scope == 0)
1125 if (sin6->sin6_scope_id == 0) {
1126 if (sa6_recoverscope(sin6) != 0)
1135 if ((site_scope == 0) &&
1136 (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1139 memcpy(sas, sin6, sizeof(*sin6));
1140 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1141 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1142 actual += sizeof(*sin6);
1143 if (actual >= limit) {
1150 struct sctp_laddr *laddr;
1152 /* The list is a NEGATIVE list */
1153 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1155 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1159 if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1162 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1163 sas = (struct sockaddr_storage *)((caddr_t)sas +
1164 laddr->ifa->address.sa.sa_len);
1165 actual += laddr->ifa->address.sa.sa_len;
1166 if (actual >= limit) {
1175 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1176 struct sctp_tcb *stcb,
1178 struct sockaddr_storage *sas)
1182 /* fill up addresses for the endpoint's default vrf */
1183 size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1189 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1192 struct sctp_vrf *vrf = NULL;
1195 * In both sub-set bound an bound_all cases we return the MAXIMUM
1196 * number of addresses that you COULD get. In reality the sub-set
1197 * bound may have an exclusion list for a given TCB OR in the
1198 * bound-all case a TCB may NOT include the loopback or other
1199 * addresses as well.
1201 vrf = sctp_find_vrf(vrf_id);
1205 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1206 struct sctp_ifn *sctp_ifn;
1207 struct sctp_ifa *sctp_ifa;
1209 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1210 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1211 /* Count them if they are the right type */
1212 if (sctp_ifa->address.sa.sa_family == AF_INET) {
1213 if (inp->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)
1214 cnt += sizeof(struct sockaddr_in6);
1216 cnt += sizeof(struct sockaddr_in);
1218 } else if (sctp_ifa->address.sa.sa_family == AF_INET6)
1219 cnt += sizeof(struct sockaddr_in6);
1223 struct sctp_laddr *laddr;
1225 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1226 if (laddr->ifa->address.sa.sa_family == AF_INET) {
1227 if (inp->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)
1228 cnt += sizeof(struct sockaddr_in6);
1230 cnt += sizeof(struct sockaddr_in);
1232 } else if (laddr->ifa->address.sa.sa_family == AF_INET6)
1233 cnt += sizeof(struct sockaddr_in6);
1240 sctp_count_max_addresses(struct sctp_inpcb *inp)
1244 /* count addresses for the endpoint's default VRF */
1245 cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1250 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1251 size_t optsize, void *p, int delay)
1254 int creat_lock_on = 0;
1255 struct sctp_tcb *stcb = NULL;
1256 struct sockaddr *sa;
1257 int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1260 int bad_addresses = 0;
1263 SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1265 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1266 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1267 /* We are already connected AND the TCP model */
1268 return (EADDRINUSE);
1270 if (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) {
1273 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1274 SCTP_INP_RLOCK(inp);
1275 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1276 SCTP_INP_RUNLOCK(inp);
1281 SCTP_INP_INCR_REF(inp);
1282 SCTP_ASOC_CREATE_LOCK(inp);
1284 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1285 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1289 totaddrp = (int *)optval;
1290 totaddr = *totaddrp;
1291 sa = (struct sockaddr *)(totaddrp + 1);
1292 stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1293 if ((stcb != NULL) || bad_addresses) {
1294 /* Already have or am bring up an association */
1295 SCTP_ASOC_CREATE_UNLOCK(inp);
1297 SCTP_TCB_UNLOCK(stcb);
1298 if (bad_addresses == 0)
1303 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1308 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1310 struct in6pcb *inp6;
1312 inp6 = (struct in6pcb *)inp;
1313 if (SCTP_IPV6_V6ONLY(inp6)) {
1315 * if IPV6_V6ONLY flag, ignore connections destined
1316 * to a v4 addr or v4-mapped addr
1323 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1324 SCTP_PCB_FLAGS_UNBOUND) {
1325 /* Bind a ephemeral port */
1326 error = sctp_inpcb_bind(so, NULL, NULL, p);
1331 /* FIX ME: do we want to pass in a vrf on the connect call? */
1332 vrf_id = inp->def_vrf_id;
1334 /* We are GOOD to go */
1335 stcb = sctp_aloc_assoc(inp, sa, 1, &error, 0, vrf_id);
1337 /* Gak! no memory */
1340 stcb->asoc.state = SCTP_STATE_COOKIE_WAIT;
1341 /* move to second address */
1342 if (sa->sa_family == AF_INET)
1343 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1345 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1348 added = sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1349 /* Fill in the return id */
1351 sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
1354 a_id = (sctp_assoc_t *) optval;
1355 *a_id = sctp_get_associd(stcb);
1357 /* initialize authentication parameters for the assoc */
1358 sctp_initialize_auth_params(inp, stcb);
1361 /* doing delayed connection */
1362 stcb->asoc.delayed_connection = 1;
1363 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1365 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1366 sctp_send_initiate(inp, stcb);
1368 SCTP_TCB_UNLOCK(stcb);
1369 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1370 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1371 /* Set the connected flag so we can queue data */
1375 if (creat_lock_on) {
1376 SCTP_ASOC_CREATE_UNLOCK(inp);
1378 SCTP_INP_DECR_REF(inp);
1382 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1383 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1384 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1385 SCTP_INP_RLOCK(inp); \
1386 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1388 SCTP_TCB_LOCK(stcb); \
1390 SCTP_INP_RUNLOCK(inp); \
1391 } else if (assoc_id != 0) { \
1392 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1393 if (stcb == NULL) { \
1403 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1404 if (size < sizeof(type)) { \
1408 destp = (type *)srcp; \
1413 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1416 struct sctp_inpcb *inp;
1418 struct sctp_tcb *stcb = NULL;
1420 if (optval == NULL) {
1423 inp = (struct sctp_inpcb *)so->so_pcb;
1430 case SCTP_AUTOCLOSE:
1431 case SCTP_EXPLICIT_EOR:
1432 case SCTP_AUTO_ASCONF:
1433 case SCTP_DISABLE_FRAGMENTS:
1434 case SCTP_I_WANT_MAPPED_V4_ADDR:
1435 case SCTP_USE_EXT_RCVINFO:
1436 SCTP_INP_RLOCK(inp);
1438 case SCTP_DISABLE_FRAGMENTS:
1439 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1441 case SCTP_I_WANT_MAPPED_V4_ADDR:
1442 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1444 case SCTP_AUTO_ASCONF:
1445 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1447 case SCTP_EXPLICIT_EOR:
1448 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1451 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1453 case SCTP_USE_EXT_RCVINFO:
1454 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1456 case SCTP_AUTOCLOSE:
1457 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1458 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1464 error = ENOPROTOOPT;
1465 } /* end switch (sopt->sopt_name) */
1466 if (optname != SCTP_AUTOCLOSE) {
1467 /* make it an "on/off" value */
1470 if (*optsize < sizeof(val)) {
1473 SCTP_INP_RUNLOCK(inp);
1475 /* return the option value */
1476 *(int *)optval = val;
1477 *optsize = sizeof(val);
1480 case SCTP_GET_PACKET_LOG:
1482 #ifdef SCTP_PACKET_LOGGING
1486 SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1487 ret = sctp_copy_out_packet_log(target, (int)*optsize);
1494 case SCTP_PARTIAL_DELIVERY_POINT:
1498 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1499 *value = inp->partial_delivery_point;
1500 *optsize = sizeof(uint32_t);
1503 case SCTP_FRAGMENT_INTERLEAVE:
1507 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1508 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1509 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1510 *value = SCTP_FRAG_LEVEL_2;
1512 *value = SCTP_FRAG_LEVEL_1;
1515 *value = SCTP_FRAG_LEVEL_0;
1517 *optsize = sizeof(uint32_t);
1520 case SCTP_CMT_ON_OFF:
1522 struct sctp_assoc_value *av;
1524 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1525 if (sctp_cmt_on_off) {
1526 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1528 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1529 SCTP_TCB_UNLOCK(stcb);
1535 error = ENOPROTOOPT;
1537 *optsize = sizeof(*av);
1540 case SCTP_GET_ADDR_LEN:
1542 struct sctp_assoc_value *av;
1544 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1547 if (av->assoc_value == AF_INET) {
1548 av->assoc_value = sizeof(struct sockaddr_in);
1553 if (av->assoc_value == AF_INET6) {
1554 av->assoc_value = sizeof(struct sockaddr_in6);
1558 *optsize = sizeof(*av);
1561 case SCTP_GET_ASSOC_NUMBER:
1563 uint32_t *value, cnt;
1565 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1567 SCTP_INP_RLOCK(inp);
1568 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1571 SCTP_INP_RUNLOCK(inp);
1573 *optsize = sizeof(uint32_t);
1577 case SCTP_GET_ASSOC_ID_LIST:
1579 struct sctp_assoc_ids *ids;
1580 unsigned int at, limit;
1582 SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1584 limit = *optsize / sizeof(sctp_assoc_t);
1585 SCTP_INP_RLOCK(inp);
1586 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1588 ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1594 SCTP_INP_RUNLOCK(inp);
1595 *optsize = at * sizeof(sctp_assoc_t);
1600 struct sctp_assoc_value *av;
1602 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1603 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1606 av->assoc_value = stcb->asoc.context;
1607 SCTP_TCB_UNLOCK(stcb);
1609 SCTP_INP_RLOCK(inp);
1610 av->assoc_value = inp->sctp_context;
1611 SCTP_INP_RUNLOCK(inp);
1613 *optsize = sizeof(*av);
1618 uint32_t *default_vrfid;
1620 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1621 *default_vrfid = inp->def_vrf_id;
1624 case SCTP_GET_ASOC_VRF:
1626 struct sctp_assoc_value *id;
1628 SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1629 SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1634 id->assoc_value = stcb->asoc.vrf_id;
1637 case SCTP_GET_VRF_IDS:
1642 case SCTP_GET_NONCE_VALUES:
1644 struct sctp_get_nonce_values *gnv;
1646 SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1647 SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1650 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1651 gnv->gn_local_tag = stcb->asoc.my_vtag;
1652 SCTP_TCB_UNLOCK(stcb);
1656 *optsize = sizeof(*gnv);
1659 case SCTP_DELAYED_SACK:
1661 struct sctp_sack_info *sack;
1663 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1664 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1666 sack->sack_delay = stcb->asoc.delayed_ack;
1667 sack->sack_freq = stcb->asoc.sack_freq;
1668 SCTP_TCB_UNLOCK(stcb);
1670 SCTP_INP_RLOCK(inp);
1671 sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
1672 sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
1673 SCTP_INP_RUNLOCK(inp);
1675 *optsize = sizeof(*sack);
1679 case SCTP_GET_SNDBUF_USE:
1681 struct sctp_sockstat *ss;
1683 SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
1684 SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
1687 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
1688 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
1689 stcb->asoc.size_on_all_streams);
1690 SCTP_TCB_UNLOCK(stcb);
1694 *optsize = sizeof(struct sctp_sockstat);
1697 case SCTP_MAX_BURST:
1701 SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize);
1703 SCTP_INP_RLOCK(inp);
1704 *value = inp->sctp_ep.max_burst;
1705 SCTP_INP_RUNLOCK(inp);
1706 *optsize = sizeof(uint8_t);
1711 struct sctp_assoc_value *av;
1714 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1715 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1718 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
1719 SCTP_TCB_UNLOCK(stcb);
1721 SCTP_INP_RLOCK(inp);
1722 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1723 ovh = SCTP_MED_OVERHEAD;
1725 ovh = SCTP_MED_V4_OVERHEAD;
1727 if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
1728 av->assoc_value = 0;
1730 av->assoc_value = inp->sctp_frag_point - ovh;
1731 SCTP_INP_RUNLOCK(inp);
1733 *optsize = sizeof(struct sctp_assoc_value);
1736 case SCTP_GET_STAT_LOG:
1737 error = sctp_fill_stat_log(optval, optsize);
1741 struct sctp_event_subscribe *events;
1743 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
1744 memset(events, 0, sizeof(*events));
1745 SCTP_INP_RLOCK(inp);
1746 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
1747 events->sctp_data_io_event = 1;
1749 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
1750 events->sctp_association_event = 1;
1752 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
1753 events->sctp_address_event = 1;
1755 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
1756 events->sctp_send_failure_event = 1;
1758 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
1759 events->sctp_peer_error_event = 1;
1761 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
1762 events->sctp_shutdown_event = 1;
1764 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
1765 events->sctp_partial_delivery_event = 1;
1767 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
1768 events->sctp_adaptation_layer_event = 1;
1770 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
1771 events->sctp_authentication_event = 1;
1773 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
1774 events->sctp_stream_reset_events = 1;
1775 SCTP_INP_RUNLOCK(inp);
1776 *optsize = sizeof(struct sctp_event_subscribe);
1780 case SCTP_ADAPTATION_LAYER:
1784 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1786 SCTP_INP_RLOCK(inp);
1787 *value = inp->sctp_ep.adaptation_layer_indicator;
1788 SCTP_INP_RUNLOCK(inp);
1789 *optsize = sizeof(uint32_t);
1792 case SCTP_SET_INITIAL_DBG_SEQ:
1796 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1797 SCTP_INP_RLOCK(inp);
1798 *value = inp->sctp_ep.initial_sequence_debug;
1799 SCTP_INP_RUNLOCK(inp);
1800 *optsize = sizeof(uint32_t);
1803 case SCTP_GET_LOCAL_ADDR_SIZE:
1807 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1808 SCTP_INP_RLOCK(inp);
1809 *value = sctp_count_max_addresses(inp);
1810 SCTP_INP_RUNLOCK(inp);
1811 *optsize = sizeof(uint32_t);
1814 case SCTP_GET_REMOTE_ADDR_SIZE:
1818 struct sctp_nets *net;
1820 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1821 /* FIXME MT: change to sctp_assoc_value? */
1822 SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
1826 /* Count the sizes */
1827 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
1828 if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) ||
1829 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) {
1830 size += sizeof(struct sockaddr_in6);
1831 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) {
1832 size += sizeof(struct sockaddr_in);
1838 SCTP_TCB_UNLOCK(stcb);
1839 *value = (uint32_t) size;
1843 *optsize = sizeof(uint32_t);
1846 case SCTP_GET_PEER_ADDRESSES:
1848 * Get the address information, an array is passed in to
1849 * fill up we pack it.
1853 struct sockaddr_storage *sas;
1854 struct sctp_nets *net;
1855 struct sctp_getaddresses *saddr;
1857 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
1858 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
1861 left = (*optsize) - sizeof(struct sctp_getaddresses);
1862 *optsize = sizeof(struct sctp_getaddresses);
1863 sas = (struct sockaddr_storage *)&saddr->addr[0];
1865 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
1866 if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) ||
1867 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) {
1868 cpsz = sizeof(struct sockaddr_in6);
1869 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) {
1870 cpsz = sizeof(struct sockaddr_in);
1876 /* not enough room. */
1879 if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_NEEDS_MAPPED_V4) &&
1880 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) {
1881 /* Must map the address */
1882 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr,
1883 (struct sockaddr_in6 *)sas);
1885 memcpy(sas, &net->ro._l_addr, cpsz);
1887 ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
1889 sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
1893 SCTP_TCB_UNLOCK(stcb);
1899 case SCTP_GET_LOCAL_ADDRESSES:
1901 size_t limit, actual;
1902 struct sockaddr_storage *sas;
1903 struct sctp_getaddresses *saddr;
1905 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
1906 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
1908 sas = (struct sockaddr_storage *)&saddr->addr[0];
1909 limit = *optsize - sizeof(sctp_assoc_t);
1910 actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
1912 SCTP_TCB_UNLOCK(stcb);
1914 *optsize = sizeof(struct sockaddr_storage) + actual;
1917 case SCTP_PEER_ADDR_PARAMS:
1919 struct sctp_paddrparams *paddrp;
1920 struct sctp_nets *net;
1922 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
1923 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
1927 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
1930 * We increment here since
1931 * sctp_findassociation_ep_addr() wil do a
1932 * decrement if it finds the stcb as long as
1933 * the locked tcb (last argument) is NOT a
1936 SCTP_INP_INCR_REF(inp);
1937 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL);
1939 SCTP_INP_DECR_REF(inp);
1944 /* Applys to the specific association */
1945 paddrp->spp_flags = 0;
1949 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1950 ovh = SCTP_MED_OVERHEAD;
1952 ovh = SCTP_MED_V4_OVERHEAD;
1956 paddrp->spp_pathmaxrxt = net->failure_threshold;
1957 paddrp->spp_pathmtu = net->mtu - ovh;
1958 /* get flags for HB */
1959 if (net->dest_state & SCTP_ADDR_NOHB)
1960 paddrp->spp_flags |= SPP_HB_DISABLE;
1962 paddrp->spp_flags |= SPP_HB_ENABLE;
1963 /* get flags for PMTU */
1964 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
1965 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
1967 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
1970 if (net->ro._l_addr.sin.sin_family == AF_INET) {
1971 paddrp->spp_ipv4_tos = net->tos_flowlabel & 0x000000fc;
1972 paddrp->spp_flags |= SPP_IPV4_TOS;
1976 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) {
1977 paddrp->spp_ipv6_flowlabel = net->tos_flowlabel;
1978 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
1983 * No destination so return default
1988 paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
1989 paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
1991 paddrp->spp_ipv4_tos = stcb->asoc.default_tos & 0x000000fc;
1992 paddrp->spp_flags |= SPP_IPV4_TOS;
1995 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel;
1996 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
1998 /* default settings should be these */
1999 if (stcb->asoc.hb_is_disabled == 0) {
2000 paddrp->spp_flags |= SPP_HB_ENABLE;
2002 paddrp->spp_flags |= SPP_HB_DISABLE;
2004 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2005 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
2010 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2013 paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2014 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2015 SCTP_TCB_UNLOCK(stcb);
2017 /* Use endpoint defaults */
2018 SCTP_INP_RLOCK(inp);
2019 paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2020 paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2021 paddrp->spp_assoc_id = (sctp_assoc_t) 0;
2022 /* get inp's default */
2024 paddrp->spp_ipv4_tos = inp->ip_inp.inp.inp_ip_tos;
2025 paddrp->spp_flags |= SPP_IPV4_TOS;
2028 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2029 paddrp->spp_ipv6_flowlabel = ((struct in6pcb *)inp)->in6p_flowinfo;
2030 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2033 /* can't return this */
2034 paddrp->spp_pathmtu = 0;
2036 /* default behavior, no stcb */
2037 paddrp->spp_flags = SPP_PMTUD_ENABLE;
2039 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2040 paddrp->spp_flags |= SPP_HB_ENABLE;
2042 paddrp->spp_flags |= SPP_HB_DISABLE;
2044 SCTP_INP_RUNLOCK(inp);
2046 *optsize = sizeof(struct sctp_paddrparams);
2049 case SCTP_GET_PEER_ADDR_INFO:
2051 struct sctp_paddrinfo *paddri;
2052 struct sctp_nets *net;
2054 SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2055 SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2059 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
2062 * We increment here since
2063 * sctp_findassociation_ep_addr() wil do a
2064 * decrement if it finds the stcb as long as
2065 * the locked tcb (last argument) is NOT a
2068 SCTP_INP_INCR_REF(inp);
2069 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
2071 SCTP_INP_DECR_REF(inp);
2075 if ((stcb) && (net)) {
2076 paddri->spinfo_state = net->dest_state & (SCTP_REACHABLE_MASK | SCTP_ADDR_NOHB);
2077 paddri->spinfo_cwnd = net->cwnd;
2078 paddri->spinfo_srtt = ((net->lastsa >> 2) + net->lastsv) >> 1;
2079 paddri->spinfo_rto = net->RTO;
2080 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2081 SCTP_TCB_UNLOCK(stcb);
2084 SCTP_TCB_UNLOCK(stcb);
2088 *optsize = sizeof(struct sctp_paddrinfo);
2091 case SCTP_PCB_STATUS:
2093 struct sctp_pcbinfo *spcb;
2095 SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2096 sctp_fill_pcbinfo(spcb);
2097 *optsize = sizeof(struct sctp_pcbinfo);
2103 struct sctp_nets *net;
2104 struct sctp_status *sstat;
2106 SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2107 SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2114 * I think passing the state is fine since
2115 * sctp_constants.h will be available to the user
2118 sstat->sstat_state = stcb->asoc.state;
2119 sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2120 sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2122 * We can't include chunks that have been passed to
2123 * the socket layer. Only things in queue.
2125 sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2126 stcb->asoc.cnt_on_all_streams);
2129 sstat->sstat_instrms = stcb->asoc.streamincnt;
2130 sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2131 sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2132 memcpy(&sstat->sstat_primary.spinfo_address,
2133 &stcb->asoc.primary_destination->ro._l_addr,
2134 ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2135 net = stcb->asoc.primary_destination;
2136 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2138 * Again the user can get info from sctp_constants.h
2139 * for what the state of the network is.
2141 sstat->sstat_primary.spinfo_state = net->dest_state & SCTP_REACHABLE_MASK;
2142 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2143 sstat->sstat_primary.spinfo_srtt = net->lastsa;
2144 sstat->sstat_primary.spinfo_rto = net->RTO;
2145 sstat->sstat_primary.spinfo_mtu = net->mtu;
2146 sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2147 SCTP_TCB_UNLOCK(stcb);
2148 *optsize = sizeof(*sstat);
2153 struct sctp_rtoinfo *srto;
2155 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2156 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2159 srto->srto_initial = stcb->asoc.initial_rto;
2160 srto->srto_max = stcb->asoc.maxrto;
2161 srto->srto_min = stcb->asoc.minrto;
2162 SCTP_TCB_UNLOCK(stcb);
2164 SCTP_INP_RLOCK(inp);
2165 srto->srto_initial = inp->sctp_ep.initial_rto;
2166 srto->srto_max = inp->sctp_ep.sctp_maxrto;
2167 srto->srto_min = inp->sctp_ep.sctp_minrto;
2168 SCTP_INP_RUNLOCK(inp);
2170 *optsize = sizeof(*srto);
2173 case SCTP_ASSOCINFO:
2175 struct sctp_assocparams *sasoc;
2177 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2178 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2181 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2182 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2183 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2184 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2185 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2186 SCTP_TCB_UNLOCK(stcb);
2188 SCTP_INP_RLOCK(inp);
2189 sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2190 sasoc->sasoc_number_peer_destinations = 0;
2191 sasoc->sasoc_peer_rwnd = 0;
2192 sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2193 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2194 SCTP_INP_RUNLOCK(inp);
2196 *optsize = sizeof(*sasoc);
2199 case SCTP_DEFAULT_SEND_PARAM:
2201 struct sctp_sndrcvinfo *s_info;
2203 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2204 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2207 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2208 SCTP_TCB_UNLOCK(stcb);
2210 SCTP_INP_RLOCK(inp);
2211 memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2212 SCTP_INP_RUNLOCK(inp);
2214 *optsize = sizeof(*s_info);
2219 struct sctp_initmsg *sinit;
2221 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2222 SCTP_INP_RLOCK(inp);
2223 sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2224 sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2225 sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2226 sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2227 SCTP_INP_RUNLOCK(inp);
2228 *optsize = sizeof(*sinit);
2231 case SCTP_PRIMARY_ADDR:
2232 /* we allow a "get" operation on this */
2234 struct sctp_setprim *ssp;
2236 SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2237 SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2240 /* simply copy out the sockaddr_storage... */
2244 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
2245 len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
2247 memcpy(&ssp->ssp_addr,
2248 &stcb->asoc.primary_destination->ro._l_addr,
2250 SCTP_TCB_UNLOCK(stcb);
2254 *optsize = sizeof(*ssp);
2258 case SCTP_HMAC_IDENT:
2260 struct sctp_hmacalgo *shmac;
2261 sctp_hmaclist_t *hmaclist;
2265 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2267 SCTP_INP_RLOCK(inp);
2268 hmaclist = inp->sctp_ep.local_hmacs;
2269 if (hmaclist == NULL) {
2270 /* no HMACs to return */
2271 *optsize = sizeof(*shmac);
2272 SCTP_INP_RUNLOCK(inp);
2275 /* is there room for all of the hmac ids? */
2276 size = sizeof(*shmac) + (hmaclist->num_algo *
2277 sizeof(shmac->shmac_idents[0]));
2278 if ((size_t)(*optsize) < size) {
2280 SCTP_INP_RUNLOCK(inp);
2283 /* copy in the list */
2284 for (i = 0; i < hmaclist->num_algo; i++)
2285 shmac->shmac_idents[i] = hmaclist->hmac[i];
2286 SCTP_INP_RUNLOCK(inp);
2290 case SCTP_AUTH_ACTIVE_KEY:
2292 struct sctp_authkeyid *scact;
2294 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2295 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2298 /* get the active key on the assoc */
2299 scact->scact_keynumber = stcb->asoc.authinfo.assoc_keyid;
2300 SCTP_TCB_UNLOCK(stcb);
2302 /* get the endpoint active key */
2303 SCTP_INP_RLOCK(inp);
2304 scact->scact_keynumber = inp->sctp_ep.default_keyid;
2305 SCTP_INP_RUNLOCK(inp);
2307 *optsize = sizeof(*scact);
2310 case SCTP_LOCAL_AUTH_CHUNKS:
2312 struct sctp_authchunks *sac;
2313 sctp_auth_chklist_t *chklist = NULL;
2316 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2317 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2320 /* get off the assoc */
2321 chklist = stcb->asoc.local_auth_chunks;
2322 /* is there enough space? */
2323 size = sctp_auth_get_chklist_size(chklist);
2324 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2327 /* copy in the chunks */
2328 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2330 SCTP_TCB_UNLOCK(stcb);
2332 /* get off the endpoint */
2333 SCTP_INP_RLOCK(inp);
2334 chklist = inp->sctp_ep.local_auth_chunks;
2335 /* is there enough space? */
2336 size = sctp_auth_get_chklist_size(chklist);
2337 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2340 /* copy in the chunks */
2341 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2343 SCTP_INP_RUNLOCK(inp);
2345 *optsize = sizeof(struct sctp_authchunks) + size;
2348 case SCTP_PEER_AUTH_CHUNKS:
2350 struct sctp_authchunks *sac;
2351 sctp_auth_chklist_t *chklist = NULL;
2354 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2355 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2358 /* get off the assoc */
2359 chklist = stcb->asoc.peer_auth_chunks;
2360 /* is there enough space? */
2361 size = sctp_auth_get_chklist_size(chklist);
2362 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2365 /* copy in the chunks */
2366 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2368 SCTP_TCB_UNLOCK(stcb);
2372 *optsize = sizeof(struct sctp_authchunks) + size;
2378 error = ENOPROTOOPT;
2381 } /* end switch (sopt->sopt_name) */
2386 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
2391 struct sctp_tcb *stcb = NULL;
2392 struct sctp_inpcb *inp;
2395 if (optval == NULL) {
2396 SCTP_PRINTF("optval is NULL\n");
2399 inp = (struct sctp_inpcb *)so->so_pcb;
2401 SCTP_PRINTF("inp is NULL?\n");
2404 vrf_id = inp->def_vrf_id;
2409 case SCTP_AUTOCLOSE:
2410 case SCTP_AUTO_ASCONF:
2411 case SCTP_EXPLICIT_EOR:
2412 case SCTP_DISABLE_FRAGMENTS:
2413 case SCTP_USE_EXT_RCVINFO:
2414 case SCTP_I_WANT_MAPPED_V4_ADDR:
2415 /* copy in the option value */
2416 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
2421 case SCTP_DISABLE_FRAGMENTS:
2422 set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
2424 case SCTP_AUTO_ASCONF:
2425 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
2427 case SCTP_EXPLICIT_EOR:
2428 set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
2430 case SCTP_USE_EXT_RCVINFO:
2431 set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
2433 case SCTP_I_WANT_MAPPED_V4_ADDR:
2434 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2435 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
2441 set_opt = SCTP_PCB_FLAGS_NODELAY;
2443 case SCTP_AUTOCLOSE:
2444 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2445 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
2448 set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
2450 * The value is in ticks. Note this does not effect
2451 * old associations, only new ones.
2453 inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
2456 SCTP_INP_WLOCK(inp);
2458 sctp_feature_on(inp, set_opt);
2460 sctp_feature_off(inp, set_opt);
2462 SCTP_INP_WUNLOCK(inp);
2464 case SCTP_PARTIAL_DELIVERY_POINT:
2468 SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
2469 if (*value > SCTP_SB_LIMIT_RCV(so)) {
2473 inp->partial_delivery_point = *value;
2476 case SCTP_FRAGMENT_INTERLEAVE:
2477 /* not yet until we re-write sctp_recvmsg() */
2481 SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
2482 if (*level == SCTP_FRAG_LEVEL_2) {
2483 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
2484 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
2485 } else if (*level == SCTP_FRAG_LEVEL_1) {
2486 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
2487 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
2488 } else if (*level == SCTP_FRAG_LEVEL_0) {
2489 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
2490 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
2497 case SCTP_CMT_ON_OFF:
2499 struct sctp_assoc_value *av;
2501 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
2502 if (sctp_cmt_on_off) {
2503 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2505 stcb->asoc.sctp_cmt_on_off = (uint8_t) av->assoc_value;
2506 SCTP_TCB_UNLOCK(stcb);
2511 error = ENOPROTOOPT;
2515 case SCTP_CLR_STAT_LOG:
2520 struct sctp_assoc_value *av;
2522 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
2523 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2526 stcb->asoc.context = av->assoc_value;
2527 SCTP_TCB_UNLOCK(stcb);
2529 SCTP_INP_WLOCK(inp);
2530 inp->sctp_context = av->assoc_value;
2531 SCTP_INP_WUNLOCK(inp);
2537 uint32_t *default_vrfid;
2539 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
2540 if (*default_vrfid > SCTP_MAX_VRF_ID) {
2544 inp->def_vrf_id = *default_vrfid;
2547 case SCTP_DEL_VRF_ID:
2552 case SCTP_ADD_VRF_ID:
2557 case SCTP_DELAYED_SACK:
2559 struct sctp_sack_info *sack;
2561 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
2562 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2564 if (sack->sack_delay) {
2565 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
2566 sack->sack_delay = TICKS_TO_MSEC(1);
2568 stcb->asoc.delayed_ack = sack->sack_delay;
2570 if (sack->sack_freq) {
2571 stcb->asoc.sack_freq = sack->sack_freq;
2573 SCTP_TCB_UNLOCK(stcb);
2575 SCTP_INP_WLOCK(inp);
2576 if (sack->sack_delay) {
2577 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
2578 sack->sack_delay = TICKS_TO_MSEC(1);
2580 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
2582 if (sack->sack_freq) {
2583 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
2585 SCTP_INP_WUNLOCK(inp);
2589 case SCTP_AUTH_CHUNK:
2591 struct sctp_authchunk *sauth;
2593 SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
2595 SCTP_INP_WLOCK(inp);
2596 if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks))
2598 SCTP_INP_WUNLOCK(inp);
2603 struct sctp_authkey *sca;
2604 struct sctp_keyhead *shared_keys;
2605 sctp_sharedkey_t *shared_key;
2606 sctp_key_t *key = NULL;
2609 SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
2610 SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
2611 size = optsize - sizeof(*sca);
2614 /* set it on the assoc */
2615 shared_keys = &stcb->asoc.shared_keys;
2616 /* clear the cached keys for this key id */
2617 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
2619 * create the new shared key and
2623 key = sctp_set_key(sca->sca_key, (uint32_t) size);
2626 SCTP_TCB_UNLOCK(stcb);
2630 shared_key = sctp_alloc_sharedkey();
2631 if (shared_key == NULL) {
2634 SCTP_TCB_UNLOCK(stcb);
2637 shared_key->key = key;
2638 shared_key->keyid = sca->sca_keynumber;
2639 sctp_insert_sharedkey(shared_keys, shared_key);
2640 SCTP_TCB_UNLOCK(stcb);
2642 /* set it on the endpoint */
2643 SCTP_INP_WLOCK(inp);
2644 shared_keys = &inp->sctp_ep.shared_keys;
2646 * clear the cached keys on all assocs for
2649 sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
2651 * create the new shared key and
2655 key = sctp_set_key(sca->sca_key, (uint32_t) size);
2658 SCTP_INP_WUNLOCK(inp);
2662 shared_key = sctp_alloc_sharedkey();
2663 if (shared_key == NULL) {
2666 SCTP_INP_WUNLOCK(inp);
2669 shared_key->key = key;
2670 shared_key->keyid = sca->sca_keynumber;
2671 sctp_insert_sharedkey(shared_keys, shared_key);
2672 SCTP_INP_WUNLOCK(inp);
2676 case SCTP_HMAC_IDENT:
2678 struct sctp_hmacalgo *shmac;
2679 sctp_hmaclist_t *hmaclist;
2681 size_t size, i, found;
2683 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
2684 size = (optsize - sizeof(*shmac)) / sizeof(shmac->shmac_idents[0]);
2685 hmaclist = sctp_alloc_hmaclist(size);
2686 if (hmaclist == NULL) {
2690 for (i = 0; i < size; i++) {
2691 hmacid = shmac->shmac_idents[i];
2692 if (sctp_auth_add_hmacid(hmaclist, (uint16_t) hmacid)) {
2693 /* invalid HMACs were found */ ;
2695 sctp_free_hmaclist(hmaclist);
2696 goto sctp_set_hmac_done;
2700 for (i = 0; i < hmaclist->num_algo; i++) {
2701 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
2702 /* already in list */
2707 sctp_free_hmaclist(hmaclist);
2711 /* set it on the endpoint */
2712 SCTP_INP_WLOCK(inp);
2713 if (inp->sctp_ep.local_hmacs)
2714 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
2715 inp->sctp_ep.local_hmacs = hmaclist;
2716 SCTP_INP_WUNLOCK(inp);
2720 case SCTP_AUTH_ACTIVE_KEY:
2722 struct sctp_authkeyid *scact;
2724 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
2725 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2727 /* set the active key on the right place */
2729 /* set the active key on the assoc */
2730 if (sctp_auth_setactivekey(stcb, scact->scact_keynumber))
2732 SCTP_TCB_UNLOCK(stcb);
2734 /* set the active key on the endpoint */
2735 SCTP_INP_WLOCK(inp);
2736 if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber))
2738 SCTP_INP_WUNLOCK(inp);
2742 case SCTP_AUTH_DELETE_KEY:
2744 struct sctp_authkeyid *scdel;
2746 SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
2747 SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
2749 /* delete the key from the right place */
2751 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber))
2753 SCTP_TCB_UNLOCK(stcb);
2755 SCTP_INP_WLOCK(inp);
2756 if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber))
2758 SCTP_INP_WUNLOCK(inp);
2763 case SCTP_RESET_STREAMS:
2765 struct sctp_stream_reset *strrst;
2766 uint8_t send_in = 0, send_tsn = 0, send_out = 0;
2769 SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize);
2770 SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id);
2776 if (stcb->asoc.peer_supports_strreset == 0) {
2778 * Peer does not support it, we return
2779 * protocol not supported since this is true
2780 * for this feature and this peer, not the
2781 * socket request in general.
2783 error = EPROTONOSUPPORT;
2784 SCTP_TCB_UNLOCK(stcb);
2787 if (stcb->asoc.stream_reset_outstanding) {
2789 SCTP_TCB_UNLOCK(stcb);
2792 if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) {
2794 } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) {
2796 } else if (strrst->strrst_flags == SCTP_RESET_BOTH) {
2799 } else if (strrst->strrst_flags == SCTP_RESET_TSN) {
2803 SCTP_TCB_UNLOCK(stcb);
2806 for (i = 0; i < strrst->strrst_num_streams; i++) {
2809 (strrst->strrst_list[i] > stcb->asoc.streamincnt)) {
2814 (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) {
2821 SCTP_TCB_UNLOCK(stcb);
2824 error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams,
2825 strrst->strrst_list,
2826 send_out, (stcb->asoc.str_reset_seq_in - 3),
2829 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ);
2830 SCTP_TCB_UNLOCK(stcb);
2834 case SCTP_CONNECT_X:
2835 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
2839 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
2842 case SCTP_CONNECT_X_DELAYED:
2843 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
2847 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
2850 case SCTP_CONNECT_X_COMPLETE:
2852 struct sockaddr *sa;
2853 struct sctp_nets *net;
2855 /* FIXME MT: check correct? */
2856 SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
2859 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
2860 SCTP_INP_RLOCK(inp);
2861 stcb = LIST_FIRST(&inp->sctp_asoc_list);
2863 SCTP_TCB_LOCK(stcb);
2864 net = sctp_findnet(stcb, sa);
2866 SCTP_INP_RUNLOCK(inp);
2869 * We increment here since
2870 * sctp_findassociation_ep_addr() wil do a
2871 * decrement if it finds the stcb as long as
2872 * the locked tcb (last argument) is NOT a
2875 SCTP_INP_INCR_REF(inp);
2876 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
2878 SCTP_INP_DECR_REF(inp);
2886 if (stcb->asoc.delayed_connection == 1) {
2887 stcb->asoc.delayed_connection = 0;
2888 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
2889 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
2890 stcb->asoc.primary_destination,
2891 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
2892 sctp_send_initiate(inp, stcb);
2895 * already expired or did not use delayed
2900 SCTP_TCB_UNLOCK(stcb);
2903 case SCTP_MAX_BURST:
2907 SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize);
2909 SCTP_INP_WLOCK(inp);
2911 inp->sctp_ep.max_burst = *burst;
2913 SCTP_INP_WUNLOCK(inp);
2918 struct sctp_assoc_value *av;
2921 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
2922 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2924 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2925 ovh = SCTP_MED_OVERHEAD;
2927 ovh = SCTP_MED_V4_OVERHEAD;
2930 if (av->assoc_value) {
2931 stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
2933 stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
2935 SCTP_TCB_UNLOCK(stcb);
2937 SCTP_INP_WLOCK(inp);
2939 * FIXME MT: I think this is not in tune
2942 if (av->assoc_value) {
2943 inp->sctp_frag_point = (av->assoc_value + ovh);
2945 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
2947 SCTP_INP_WUNLOCK(inp);
2953 struct sctp_event_subscribe *events;
2955 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
2957 SCTP_INP_WLOCK(inp);
2958 if (events->sctp_data_io_event) {
2959 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
2961 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
2964 if (events->sctp_association_event) {
2965 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
2967 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
2970 if (events->sctp_address_event) {
2971 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
2973 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
2976 if (events->sctp_send_failure_event) {
2977 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
2979 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
2982 if (events->sctp_peer_error_event) {
2983 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
2985 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
2988 if (events->sctp_shutdown_event) {
2989 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
2991 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
2994 if (events->sctp_partial_delivery_event) {
2995 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
2997 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
3000 if (events->sctp_adaptation_layer_event) {
3001 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
3003 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
3006 if (events->sctp_authentication_event) {
3007 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
3009 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
3012 if (events->sctp_stream_reset_events) {
3013 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
3015 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
3017 SCTP_INP_WUNLOCK(inp);
3021 case SCTP_ADAPTATION_LAYER:
3023 struct sctp_setadaptation *adap_bits;
3025 SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
3026 SCTP_INP_WLOCK(inp);
3027 inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
3028 SCTP_INP_WUNLOCK(inp);
3032 case SCTP_SET_INITIAL_DBG_SEQ:
3036 SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
3037 SCTP_INP_WLOCK(inp);
3038 inp->sctp_ep.initial_sequence_debug = *vvv;
3039 SCTP_INP_WUNLOCK(inp);
3043 case SCTP_DEFAULT_SEND_PARAM:
3045 struct sctp_sndrcvinfo *s_info;
3047 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
3048 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
3051 if (s_info->sinfo_stream <= stcb->asoc.streamoutcnt) {
3052 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
3056 SCTP_TCB_UNLOCK(stcb);
3058 SCTP_INP_WLOCK(inp);
3059 memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
3060 SCTP_INP_WUNLOCK(inp);
3064 case SCTP_PEER_ADDR_PARAMS:
3065 /* Applys to the specific association */
3067 struct sctp_paddrparams *paddrp;
3068 struct sctp_nets *net;
3070 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
3071 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
3074 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
3077 * We increment here since
3078 * sctp_findassociation_ep_addr() wil do a
3079 * decrement if it finds the stcb as long as
3080 * the locked tcb (last argument) is NOT a
3083 SCTP_INP_INCR_REF(inp);
3084 stcb = sctp_findassociation_ep_addr(&inp,
3085 (struct sockaddr *)&paddrp->spp_address,
3088 SCTP_INP_DECR_REF(inp);
3092 if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
3094 SCTP_TCB_UNLOCK(stcb);
3097 if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
3099 SCTP_TCB_UNLOCK(stcb);
3103 /************************TCB SPECIFIC SET ******************/
3105 * do we change the timer for HB, we run
3110 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3111 ovh = SCTP_MED_OVERHEAD;
3113 ovh = SCTP_MED_V4_OVERHEAD;
3116 if (paddrp->spp_hbinterval)
3117 stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
3118 else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
3119 stcb->asoc.heart_beat_delay = 0;
3121 /* network sets ? */
3123 /************************NET SPECIFIC SET ******************/
3124 if (paddrp->spp_flags & SPP_HB_DEMAND) {
3126 (void)sctp_send_hb(stcb, 1, net);
3128 if (paddrp->spp_flags & SPP_HB_DISABLE) {
3129 net->dest_state |= SCTP_ADDR_NOHB;
3131 if (paddrp->spp_flags & SPP_HB_ENABLE) {
3132 net->dest_state &= ~SCTP_ADDR_NOHB;
3134 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
3135 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
3136 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
3137 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
3139 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
3140 net->mtu = paddrp->spp_pathmtu + ovh;
3141 if (net->mtu < stcb->asoc.smallest_mtu) {
3142 #ifdef SCTP_PRINT_FOR_B_AND_M
3143 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n",
3146 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu);
3150 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
3151 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
3152 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
3155 if (paddrp->spp_pathmaxrxt)
3156 net->failure_threshold = paddrp->spp_pathmaxrxt;
3158 if (paddrp->spp_flags & SPP_IPV4_TOS) {
3159 if (net->ro._l_addr.sin.sin_family == AF_INET) {
3160 net->tos_flowlabel = paddrp->spp_ipv4_tos & 0x000000fc;
3165 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
3166 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) {
3167 net->tos_flowlabel = paddrp->spp_ipv6_flowlabel;
3172 /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
3173 if (paddrp->spp_pathmaxrxt)
3174 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
3176 if (paddrp->spp_flags & SPP_HB_ENABLE) {
3177 /* Turn back on the timer */
3178 stcb->asoc.hb_is_disabled = 0;
3179 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
3181 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
3182 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3183 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
3184 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
3185 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
3187 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
3188 net->mtu = paddrp->spp_pathmtu + ovh;
3189 if (net->mtu < stcb->asoc.smallest_mtu) {
3190 #ifdef SCTP_PRINT_FOR_B_AND_M
3191 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n",
3194 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu);
3199 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
3200 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3201 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
3202 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
3206 if (paddrp->spp_flags & SPP_HB_DISABLE) {
3207 int cnt_of_unconf = 0;
3208 struct sctp_nets *lnet;
3210 stcb->asoc.hb_is_disabled = 1;
3211 TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) {
3212 if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) {
3217 * stop the timer ONLY if we
3218 * have no unconfirmed
3221 if (cnt_of_unconf == 0) {
3222 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3223 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
3224 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
3228 if (paddrp->spp_flags & SPP_HB_ENABLE) {
3229 /* start up the timer. */
3230 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3231 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
3235 if (paddrp->spp_flags & SPP_IPV4_TOS)
3236 stcb->asoc.default_tos = paddrp->spp_ipv4_tos & 0x000000fc;
3239 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL)
3240 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel;
3244 SCTP_TCB_UNLOCK(stcb);
3246 /************************NO TCB, SET TO default stuff ******************/
3247 SCTP_INP_WLOCK(inp);
3249 * For the TOS/FLOWLABEL stuff you set it
3250 * with the options on the socket
3252 if (paddrp->spp_pathmaxrxt) {
3253 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
3255 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
3256 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
3257 else if (paddrp->spp_hbinterval)
3258 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
3260 if (paddrp->spp_flags & SPP_HB_ENABLE) {
3261 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
3263 } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
3264 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
3266 SCTP_INP_WUNLOCK(inp);
3272 struct sctp_rtoinfo *srto;
3273 uint32_t new_init, new_min, new_max;
3275 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
3276 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
3279 if (srto->srto_initial)
3280 new_init = srto->srto_initial;
3282 new_init = stcb->asoc.initial_rto;
3284 new_max = srto->srto_max;
3286 new_max = stcb->asoc.maxrto;
3288 new_min = srto->srto_min;
3290 new_min = stcb->asoc.minrto;
3291 if ((new_min <= new_init) && (new_init <= new_max)) {
3292 stcb->asoc.initial_rto = new_init;
3293 stcb->asoc.maxrto = new_max;
3294 stcb->asoc.minrto = new_min;
3298 SCTP_TCB_UNLOCK(stcb);
3300 SCTP_INP_WLOCK(inp);
3301 if (srto->srto_initial)
3302 new_init = srto->srto_initial;
3304 new_init = inp->sctp_ep.initial_rto;
3306 new_max = srto->srto_max;
3308 new_max = inp->sctp_ep.sctp_maxrto;
3310 new_min = srto->srto_min;
3312 new_min = inp->sctp_ep.sctp_minrto;
3313 if ((new_min <= new_init) && (new_init <= new_max)) {
3314 inp->sctp_ep.initial_rto = new_init;
3315 inp->sctp_ep.sctp_maxrto = new_max;
3316 inp->sctp_ep.sctp_minrto = new_min;
3320 SCTP_INP_WUNLOCK(inp);
3324 case SCTP_ASSOCINFO:
3326 struct sctp_assocparams *sasoc;
3328 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
3329 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
3332 if (sasoc->sasoc_asocmaxrxt)
3333 stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
3334 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
3335 sasoc->sasoc_peer_rwnd = 0;
3336 sasoc->sasoc_local_rwnd = 0;
3337 if (sasoc->sasoc_cookie_life) {
3338 if (sasoc->sasoc_cookie_life < 1000)
3339 sasoc->sasoc_cookie_life = 1000;
3340 stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
3342 SCTP_TCB_UNLOCK(stcb);
3344 SCTP_INP_WLOCK(inp);
3345 if (sasoc->sasoc_asocmaxrxt)
3346 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
3347 sasoc->sasoc_number_peer_destinations = 0;
3348 sasoc->sasoc_peer_rwnd = 0;
3349 sasoc->sasoc_local_rwnd = 0;
3350 if (sasoc->sasoc_cookie_life) {
3351 if (sasoc->sasoc_cookie_life < 1000)
3352 sasoc->sasoc_cookie_life = 1000;
3353 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
3355 SCTP_INP_WUNLOCK(inp);
3361 struct sctp_initmsg *sinit;
3363 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
3364 SCTP_INP_WLOCK(inp);
3365 if (sinit->sinit_num_ostreams)
3366 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
3368 if (sinit->sinit_max_instreams)
3369 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
3371 if (sinit->sinit_max_attempts)
3372 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
3374 if (sinit->sinit_max_init_timeo)
3375 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
3376 SCTP_INP_WUNLOCK(inp);
3379 case SCTP_PRIMARY_ADDR:
3381 struct sctp_setprim *spa;
3382 struct sctp_nets *net, *lnet;
3384 SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
3385 SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
3389 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr);
3392 * We increment here since
3393 * sctp_findassociation_ep_addr() wil do a
3394 * decrement if it finds the stcb as long as
3395 * the locked tcb (last argument) is NOT a
3398 SCTP_INP_INCR_REF(inp);
3399 stcb = sctp_findassociation_ep_addr(&inp,
3400 (struct sockaddr *)&spa->ssp_addr,
3403 SCTP_INP_DECR_REF(inp);
3407 if ((stcb) && (net)) {
3408 if ((net != stcb->asoc.primary_destination) &&
3409 (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
3410 /* Ok we need to set it */
3411 lnet = stcb->asoc.primary_destination;
3412 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
3413 if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) {
3414 net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH;
3416 net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY;
3423 SCTP_TCB_UNLOCK(stcb);
3427 case SCTP_SET_DYNAMIC_PRIMARY:
3429 union sctp_sockstore *ss;
3431 error = priv_check(curthread,
3432 PRIV_NETINET_RESERVEDPORT);
3436 SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
3437 /* SUPER USER CHECK? */
3438 error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
3441 case SCTP_SET_PEER_PRIMARY_ADDR:
3443 struct sctp_setpeerprim *sspp;
3445 SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
3446 SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
3448 struct sctp_ifa *ifa;
3450 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr,
3451 stcb->asoc.vrf_id, 0);
3456 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
3458 * Must validate the ifa found is in
3461 struct sctp_laddr *laddr;
3464 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
3465 if (laddr->ifa == NULL) {
3466 SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
3470 if (laddr->ifa == ifa) {
3480 if (sctp_set_primary_ip_address_sa(stcb,
3481 (struct sockaddr *)&sspp->sspp_addr) != 0) {
3485 SCTP_TCB_UNLOCK(stcb);
3492 case SCTP_BINDX_ADD_ADDR:
3494 struct sctp_getaddresses *addrs;
3496 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
3498 sctp_bindx_add_address(so, inp, addrs->addr,
3499 addrs->sget_assoc_id, vrf_id,
3503 case SCTP_BINDX_REM_ADDR:
3505 struct sctp_getaddresses *addrs;
3507 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
3508 sctp_bindx_delete_address(so, inp, addrs->addr,
3509 addrs->sget_assoc_id, vrf_id,
3514 error = ENOPROTOOPT;
3516 } /* end switch (opt) */
3522 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
3524 void *optval = NULL;
3526 struct sctp_inpcb *inp;
3530 inp = (struct sctp_inpcb *)so->so_pcb;
3532 /* I made the same as TCP since we are not setup? */
3533 return (ECONNRESET);
3535 if (sopt->sopt_level != IPPROTO_SCTP) {
3536 /* wrong proto level... send back up to IP */
3538 if (INP_CHECK_SOCKAF(so, AF_INET6))
3539 error = ip6_ctloutput(so, sopt);
3542 error = ip_ctloutput(so, sopt);
3545 optsize = sopt->sopt_valsize;
3547 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
3548 if (optval == NULL) {
3551 error = sooptcopyin(sopt, optval, optsize, optsize);
3553 SCTP_FREE(optval, SCTP_M_SOCKOPT);
3557 p = (void *)sopt->sopt_td;
3558 if (sopt->sopt_dir == SOPT_SET) {
3559 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
3560 } else if (sopt->sopt_dir == SOPT_GET) {
3561 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
3565 if ((error == 0) && (optval != NULL)) {
3566 error = sooptcopyout(sopt, optval, optsize);
3567 SCTP_FREE(optval, SCTP_M_SOCKOPT);
3568 } else if (optval != NULL) {
3569 SCTP_FREE(optval, SCTP_M_SOCKOPT);
3577 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
3580 int create_lock_on = 0;
3582 struct sctp_inpcb *inp;
3583 struct sctp_tcb *stcb = NULL;
3585 inp = (struct sctp_inpcb *)so->so_pcb;
3587 /* I made the same as TCP since we are not setup? */
3588 return (ECONNRESET);
3593 if ((addr->sa_family == AF_INET6) && (addr->sa_len != sizeof(struct sockaddr_in6))) {
3596 if ((addr->sa_family == AF_INET) && (addr->sa_len != sizeof(struct sockaddr_in))) {
3599 SCTP_ASOC_CREATE_LOCK(inp);
3602 SCTP_INP_INCR_REF(inp);
3603 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
3604 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
3605 /* Should I really unlock ? */
3610 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
3611 (addr->sa_family == AF_INET6)) {
3616 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
3617 SCTP_PCB_FLAGS_UNBOUND) {
3618 /* Bind a ephemeral port */
3619 error = sctp_inpcb_bind(so, NULL, NULL, p);
3624 /* Now do we connect? */
3625 if (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) {
3629 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
3630 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
3631 /* We are already connected AND the TCP model */
3635 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
3636 SCTP_INP_RLOCK(inp);
3637 stcb = LIST_FIRST(&inp->sctp_asoc_list);
3638 SCTP_INP_RUNLOCK(inp);
3641 * We increment here since sctp_findassociation_ep_addr()
3642 * wil do a decrement if it finds the stcb as long as the
3643 * locked tcb (last argument) is NOT a TCB.. aka NULL.
3645 SCTP_INP_INCR_REF(inp);
3646 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
3648 SCTP_INP_DECR_REF(inp);
3650 SCTP_TCB_LOCK(stcb);
3654 /* Already have or am bring up an association */
3658 vrf_id = inp->def_vrf_id;
3659 /* We are GOOD to go */
3660 stcb = sctp_aloc_assoc(inp, addr, 1, &error, 0, vrf_id);
3662 /* Gak! no memory */
3665 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
3666 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
3667 /* Set the connected flag so we can queue data */
3670 stcb->asoc.state = SCTP_STATE_COOKIE_WAIT;
3671 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
3673 /* initialize authentication parameters for the assoc */
3674 sctp_initialize_auth_params(inp, stcb);
3676 sctp_send_initiate(inp, stcb);
3677 SCTP_TCB_UNLOCK(stcb);
3679 if (create_lock_on) {
3680 SCTP_ASOC_CREATE_UNLOCK(inp);
3682 SCTP_INP_DECR_REF(inp);
3687 sctp_listen(struct socket *so, int backlog, struct thread *p)
3690 * Note this module depends on the protocol processing being called
3691 * AFTER any socket level flags and backlog are applied to the
3692 * socket. The traditional way that the socket flags are applied is
3693 * AFTER protocol processing. We have made a change to the
3694 * sys/kern/uipc_socket.c module to reverse this but this MUST be in
3695 * place if the socket API for SCTP is to work properly.
3699 struct sctp_inpcb *inp;
3701 inp = (struct sctp_inpcb *)so->so_pcb;
3703 /* I made the same as TCP since we are not setup? */
3704 return (ECONNRESET);
3706 SCTP_INP_RLOCK(inp);
3707 #ifdef SCTP_LOCK_LOGGING
3708 if (sctp_logging_level & SCTP_LOCK_LOGGING_ENABLE) {
3709 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
3713 error = solisten_proto_check(so);
3716 SCTP_INP_RUNLOCK(inp);
3719 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
3720 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
3721 /* We are already connected AND the TCP model */
3722 SCTP_INP_RUNLOCK(inp);
3724 return (EADDRINUSE);
3726 if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
3727 /* We must do a bind. */
3729 SCTP_INP_RUNLOCK(inp);
3730 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
3731 /* bind error, probably perm */
3736 SCTP_INP_RUNLOCK(inp);
3738 /* It appears for 7.0 and on, we must always call this. */
3739 solisten_proto(so, backlog);
3740 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
3741 /* remove the ACCEPTCONN flag for one-to-many sockets */
3742 so->so_options &= ~SO_ACCEPTCONN;
3745 /* turning off listen */
3746 so->so_options &= ~SO_ACCEPTCONN;
3752 static int sctp_defered_wakeup_cnt = 0;
3755 sctp_accept(struct socket *so, struct sockaddr **addr)
3757 struct sctp_tcb *stcb;
3758 struct sctp_inpcb *inp;
3759 union sctp_sockstore store;
3763 inp = (struct sctp_inpcb *)so->so_pcb;
3766 return (ECONNRESET);
3768 SCTP_INP_RLOCK(inp);
3769 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
3770 SCTP_INP_RUNLOCK(inp);
3773 if (so->so_state & SS_ISDISCONNECTED) {
3774 SCTP_INP_RUNLOCK(inp);
3775 return (ECONNABORTED);
3777 stcb = LIST_FIRST(&inp->sctp_asoc_list);
3779 SCTP_INP_RUNLOCK(inp);
3780 return (ECONNRESET);
3782 SCTP_TCB_LOCK(stcb);
3783 SCTP_INP_RUNLOCK(inp);
3784 store = stcb->asoc.primary_destination->ro._l_addr;
3785 SCTP_TCB_UNLOCK(stcb);
3786 if (store.sa.sa_family == AF_INET) {
3787 struct sockaddr_in *sin;
3789 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
3790 sin->sin_family = AF_INET;
3791 sin->sin_len = sizeof(*sin);
3792 sin->sin_port = ((struct sockaddr_in *)&store)->sin_port;
3793 sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr;
3794 *addr = (struct sockaddr *)sin;
3796 struct sockaddr_in6 *sin6;
3798 SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
3799 sin6->sin6_family = AF_INET6;
3800 sin6->sin6_len = sizeof(*sin6);
3801 sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port;
3803 sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr;
3804 if ((error = sa6_recoverscope(sin6)) != 0) {
3805 SCTP_FREE_SONAME(sin6);
3808 *addr = (struct sockaddr *)sin6;
3810 /* Wake any delayed sleep action */
3811 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
3812 SCTP_INP_WLOCK(inp);
3813 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
3814 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
3815 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
3816 SCTP_INP_WUNLOCK(inp);
3817 SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
3818 if (sowriteable(inp->sctp_socket)) {
3819 sowwakeup_locked(inp->sctp_socket);
3821 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
3823 SCTP_INP_WLOCK(inp);
3825 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
3826 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
3827 SCTP_INP_WUNLOCK(inp);
3828 SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
3829 if (soreadable(inp->sctp_socket)) {
3830 sctp_defered_wakeup_cnt++;
3831 sorwakeup_locked(inp->sctp_socket);
3833 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
3835 SCTP_INP_WLOCK(inp);
3837 SCTP_INP_WUNLOCK(inp);
3843 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
3845 struct sockaddr_in *sin;
3847 struct sctp_inpcb *inp;
3848 struct sctp_ifa *sctp_ifa;
3851 * Do the malloc first in case it blocks.
3853 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
3854 sin->sin_family = AF_INET;
3855 sin->sin_len = sizeof(*sin);
3856 inp = (struct sctp_inpcb *)so->so_pcb;
3858 SCTP_FREE_SONAME(sin);
3861 SCTP_INP_RLOCK(inp);
3862 sin->sin_port = inp->sctp_lport;
3863 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3864 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
3865 struct sctp_tcb *stcb;
3866 struct sockaddr_in *sin_a;
3867 struct sctp_nets *net;
3870 stcb = LIST_FIRST(&inp->sctp_asoc_list);
3876 SCTP_TCB_LOCK(stcb);
3877 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3878 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
3880 /* this will make coverity happy */
3883 if (sin_a->sin_family == AF_INET) {
3888 if ((!fnd) || (sin_a == NULL)) {
3890 SCTP_TCB_UNLOCK(stcb);
3893 vrf_id = inp->def_vrf_id;
3894 sctp_ifa = sctp_source_address_selection(inp,
3896 (sctp_route_t *) & net->ro,
3899 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
3900 sctp_free_ifa(sctp_ifa);
3902 SCTP_TCB_UNLOCK(stcb);
3904 /* For the bound all case you get back 0 */
3906 sin->sin_addr.s_addr = 0;
3910 /* Take the first IPv4 address in the list */
3911 struct sctp_laddr *laddr;
3914 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
3915 if (laddr->ifa->address.sa.sa_family == AF_INET) {
3916 struct sockaddr_in *sin_a;
3918 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa;
3919 sin->sin_addr = sin_a->sin_addr;
3925 SCTP_FREE_SONAME(sin);
3926 SCTP_INP_RUNLOCK(inp);
3930 SCTP_INP_RUNLOCK(inp);
3931 (*addr) = (struct sockaddr *)sin;
3936 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
3938 struct sockaddr_in *sin = (struct sockaddr_in *)*addr;
3940 struct sockaddr_in *sin_a;
3941 struct sctp_inpcb *inp;
3942 struct sctp_tcb *stcb;
3943 struct sctp_nets *net;
3945 /* Do the malloc first in case it blocks. */
3946 inp = (struct sctp_inpcb *)so->so_pcb;
3947 if ((inp == NULL) ||
3948 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
3949 /* UDP type and listeners will drop out here */
3952 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
3953 sin->sin_family = AF_INET;
3954 sin->sin_len = sizeof(*sin);
3956 /* We must recapture incase we blocked */
3957 inp = (struct sctp_inpcb *)so->so_pcb;
3959 SCTP_FREE_SONAME(sin);
3962 SCTP_INP_RLOCK(inp);
3963 stcb = LIST_FIRST(&inp->sctp_asoc_list);
3965 SCTP_TCB_LOCK(stcb);
3967 SCTP_INP_RUNLOCK(inp);
3969 SCTP_FREE_SONAME(sin);
3973 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3974 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
3975 if (sin_a->sin_family == AF_INET) {
3977 sin->sin_port = stcb->rport;
3978 sin->sin_addr = sin_a->sin_addr;
3982 SCTP_TCB_UNLOCK(stcb);
3984 /* No IPv4 address */
3985 SCTP_FREE_SONAME(sin);
3988 (*addr) = (struct sockaddr *)sin;
3992 struct pr_usrreqs sctp_usrreqs = {
3993 .pru_abort = sctp_abort,
3994 .pru_accept = sctp_accept,
3995 .pru_attach = sctp_attach,
3996 .pru_bind = sctp_bind,
3997 .pru_connect = sctp_connect,
3998 .pru_control = in_control,
3999 .pru_close = sctp_close,
4000 .pru_detach = sctp_close,
4001 .pru_sopoll = sopoll_generic,
4002 .pru_disconnect = sctp_disconnect,
4003 .pru_listen = sctp_listen,
4004 .pru_peeraddr = sctp_peeraddr,
4005 .pru_send = sctp_sendm,
4006 .pru_shutdown = sctp_shutdown,
4007 .pru_sockaddr = sctp_ingetaddr,
4008 .pru_sosend = sctp_sosend,
4009 .pru_soreceive = sctp_soreceive