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Ignore machine-check MSRs
[freebsd-src/fkvm-freebsd.git] / sys / netinet / sctp_usrreq.c
blob2f2418147627b75a016fb30df9f5b5db187b5530
1 /*-
2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * a) Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 *
10 * b) Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the distribution.
13 *
14 * c) Neither the name of Cisco Systems, Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived
16 * from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28 * THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 /* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $ */
32
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
35 #include <netinet/sctp_os.h>
36 #include <sys/proc.h>
37 #include <netinet/sctp_pcb.h>
38 #include <netinet/sctp_header.h>
39 #include <netinet/sctp_var.h>
40 #if defined(INET6)
41 #endif
42 #include <netinet/sctp_sysctl.h>
43 #include <netinet/sctp_output.h>
44 #include <netinet/sctp_uio.h>
45 #include <netinet/sctp_asconf.h>
46 #include <netinet/sctputil.h>
47 #include <netinet/sctp_indata.h>
48 #include <netinet/sctp_timer.h>
49 #include <netinet/sctp_auth.h>
50 #include <netinet/sctp_bsd_addr.h>
51 #include <netinet/sctp_cc_functions.h>
52
53
54
55
56 void
57 sctp_init(void)
58 {
59 u_long sb_max_adj;
60
61 bzero(&SCTP_BASE_STATS, sizeof(struct sctpstat));
62
63 /* Initialize and modify the sysctled variables */
64 sctp_init_sysctls();
65 if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
66 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
67 /*
68 * Allow a user to take no more than 1/2 the number of clusters or
69 * the SB_MAX whichever is smaller for the send window.
70 */
71 sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
72 SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
73 (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
74 /*
75 * Now for the recv window, should we take the same amount? or
76 * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
77 * now I will just copy.
78 */
79 SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
80
81 SCTP_BASE_VAR(first_time) = 0;
82 SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
83 sctp_pcb_init();
84 #if defined(SCTP_PACKET_LOGGING)
85 SCTP_BASE_VAR(packet_log_writers) = 0;
86 SCTP_BASE_VAR(packet_log_end) = 0;
87 bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
88 #endif
89
90
91 }
92
93 void
94 sctp_finish(void)
95 {
96 sctp_pcb_finish();
97 }
98
99
100
101 void
102 sctp_pathmtu_adjustment(struct sctp_inpcb *inp,
103 struct sctp_tcb *stcb,
104 struct sctp_nets *net,
105 uint16_t nxtsz)
106 {
107 struct sctp_tmit_chunk *chk;
108
109 /* Adjust that too */
110 stcb->asoc.smallest_mtu = nxtsz;
111 /* now off to subtract IP_DF flag if needed */
112 #ifdef SCTP_PRINT_FOR_B_AND_M
113 SCTP_PRINTF("sctp_pathmtu_adjust called inp:%p stcb:%p net:%p nxtsz:%d\n",
114 inp, stcb, net, nxtsz);
115 #endif
116 TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
117 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) {
118 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
119 }
120 }
121 TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
122 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) {
123 /*
124 * For this guy we also mark for immediate resend
125 * since we sent to big of chunk
126 */
127 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
128 if (chk->sent != SCTP_DATAGRAM_RESEND) {
129 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
130 }
131 chk->sent = SCTP_DATAGRAM_RESEND;
132 chk->rec.data.doing_fast_retransmit = 0;
133 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
134 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
135 chk->whoTo->flight_size,
136 chk->book_size,
137 (uintptr_t) chk->whoTo,
138 chk->rec.data.TSN_seq);
139 }
140 /* Clear any time so NO RTT is being done */
141 chk->do_rtt = 0;
142 sctp_flight_size_decrease(chk);
143 sctp_total_flight_decrease(stcb, chk);
144 }
145 }
146 }
147
148 static void
149 sctp_notify_mbuf(struct sctp_inpcb *inp,
150 struct sctp_tcb *stcb,
151 struct sctp_nets *net,
152 struct ip *ip,
153 struct sctphdr *sh)
154 {
155 struct icmp *icmph;
156 int totsz, tmr_stopped = 0;
157 uint16_t nxtsz;
158
159 /* protection */
160 if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
161 (ip == NULL) || (sh == NULL)) {
162 if (stcb != NULL) {
163 SCTP_TCB_UNLOCK(stcb);
164 }
165 return;
166 }
167 /* First job is to verify the vtag matches what I would send */
168 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
169 SCTP_TCB_UNLOCK(stcb);
170 return;
171 }
172 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
173 sizeof(struct ip)));
174 if (icmph->icmp_type != ICMP_UNREACH) {
175 /* We only care about unreachable */
176 SCTP_TCB_UNLOCK(stcb);
177 return;
178 }
179 if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
180 /* not a unreachable message due to frag. */
181 SCTP_TCB_UNLOCK(stcb);
182 return;
183 }
184 totsz = ip->ip_len;
185
186 nxtsz = ntohs(icmph->icmp_nextmtu);
187 if (nxtsz == 0) {
188 /*
189 * old type router that does not tell us what the next size
190 * mtu is. Rats we will have to guess (in a educated fashion
191 * of course)
192 */
193 nxtsz = find_next_best_mtu(totsz);
194 }
195 /* Stop any PMTU timer */
196 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
197 tmr_stopped = 1;
198 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
199 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
200 }
201 /* Adjust destination size limit */
202 if (net->mtu > nxtsz) {
203 net->mtu = nxtsz;
204 }
205 /* now what about the ep? */
206 if (stcb->asoc.smallest_mtu > nxtsz) {
207 #ifdef SCTP_PRINT_FOR_B_AND_M
208 SCTP_PRINTF("notify_mbuf (ICMP) calls sctp_pathmtu_adjust mtu:%d\n",
209 nxtsz);
210 #endif
211 sctp_pathmtu_adjustment(inp, stcb, net, nxtsz);
212 }
213 if (tmr_stopped)
214 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
215
216 SCTP_TCB_UNLOCK(stcb);
217 }
218
219
220 void
221 sctp_notify(struct sctp_inpcb *inp,
222 struct ip *ip,
223 struct sctphdr *sh,
224 struct sockaddr *to,
225 struct sctp_tcb *stcb,
226 struct sctp_nets *net)
227 {
228 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
229 struct socket *so;
230
231 #endif
232 /* protection */
233 int reason;
234 struct icmp *icmph;
235
236
237 if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
238 (sh == NULL) || (to == NULL)) {
239 if (stcb)
240 SCTP_TCB_UNLOCK(stcb);
241 return;
242 }
243 /* First job is to verify the vtag matches what I would send */
244 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
245 SCTP_TCB_UNLOCK(stcb);
246 return;
247 }
248 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
249 sizeof(struct ip)));
250 if (icmph->icmp_type != ICMP_UNREACH) {
251 /* We only care about unreachable */
252 SCTP_TCB_UNLOCK(stcb);
253 return;
254 }
255 if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
256 (icmph->icmp_code == ICMP_UNREACH_HOST) ||
257 (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
258 (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
259 (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
260 (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
261 (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
262 (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
263
264 /*
265 * Hmm reachablity problems we must examine closely. If its
266 * not reachable, we may have lost a network. Or if there is
267 * NO protocol at the other end named SCTP. well we consider
268 * it a OOTB abort.
269 */
270 if (net->dest_state & SCTP_ADDR_REACHABLE) {
271 /* Ok that destination is NOT reachable */
272 SCTP_PRINTF("ICMP (thresh %d/%d) takes interface %p down\n",
273 net->error_count,
274 net->failure_threshold,
275 net);
276
277 net->dest_state &= ~SCTP_ADDR_REACHABLE;
278 net->dest_state |= SCTP_ADDR_NOT_REACHABLE;
279 /*
280 * JRS 5/14/07 - If a destination is unreachable,
281 * the PF bit is turned off. This allows an
282 * unambiguous use of the PF bit for destinations
283 * that are reachable but potentially failed. If the
284 * destination is set to the unreachable state, also
285 * set the destination to the PF state.
286 */
287 /*
288 * Add debug message here if destination is not in
289 * PF state.
290 */
291 /* Stop any running T3 timers here? */
292 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off) && SCTP_BASE_SYSCTL(sctp_cmt_pf)) {
293 net->dest_state &= ~SCTP_ADDR_PF;
294 SCTPDBG(SCTP_DEBUG_TIMER4, "Destination %p moved from PF to unreachable.\n",
295 net);
296 }
297 net->error_count = net->failure_threshold + 1;
298 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
299 stcb, SCTP_FAILED_THRESHOLD,
300 (void *)net, SCTP_SO_NOT_LOCKED);
301 }
302 SCTP_TCB_UNLOCK(stcb);
303 } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
304 (icmph->icmp_code == ICMP_UNREACH_PORT)) {
305 /*
306 * Here the peer is either playing tricks on us, including
307 * an address that belongs to someone who does not support
308 * SCTP OR was a userland implementation that shutdown and
309 * now is dead. In either case treat it like a OOTB abort
310 * with no TCB
311 */
312 reason = SCTP_PEER_FAULTY;
313 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED);
314 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
315 so = SCTP_INP_SO(inp);
316 atomic_add_int(&stcb->asoc.refcnt, 1);
317 SCTP_TCB_UNLOCK(stcb);
318 SCTP_SOCKET_LOCK(so, 1);
319 SCTP_TCB_LOCK(stcb);
320 atomic_subtract_int(&stcb->asoc.refcnt, 1);
321 #endif
322 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
323 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
324 SCTP_SOCKET_UNLOCK(so, 1);
325 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
326 #endif
327 /* no need to unlock here, since the TCB is gone */
328 } else {
329 SCTP_TCB_UNLOCK(stcb);
330 }
331 }
332
333 void
334 sctp_ctlinput(cmd, sa, vip)
335 int cmd;
336 struct sockaddr *sa;
337 void *vip;
338 {
339 struct ip *ip = vip;
340 struct sctphdr *sh;
341 uint32_t vrf_id;
342
343 /* FIX, for non-bsd is this right? */
344 vrf_id = SCTP_DEFAULT_VRFID;
345 if (sa->sa_family != AF_INET ||
346 ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
347 return;
348 }
349 if (PRC_IS_REDIRECT(cmd)) {
350 ip = 0;
351 } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
352 return;
353 }
354 if (ip) {
355 struct sctp_inpcb *inp = NULL;
356 struct sctp_tcb *stcb = NULL;
357 struct sctp_nets *net = NULL;
358 struct sockaddr_in to, from;
359
360 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
361 bzero(&to, sizeof(to));
362 bzero(&from, sizeof(from));
363 from.sin_family = to.sin_family = AF_INET;
364 from.sin_len = to.sin_len = sizeof(to);
365 from.sin_port = sh->src_port;
366 from.sin_addr = ip->ip_src;
367 to.sin_port = sh->dest_port;
368 to.sin_addr = ip->ip_dst;
369
370 /*
371 * 'to' holds the dest of the packet that failed to be sent.
372 * 'from' holds our local endpoint address. Thus we reverse
373 * the to and the from in the lookup.
374 */
375 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from,
376 (struct sockaddr *)&to,
377 &inp, &net, 1, vrf_id);
378 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
379 if (cmd != PRC_MSGSIZE) {
380 sctp_notify(inp, ip, sh,
381 (struct sockaddr *)&to, stcb,
382 net);
383 } else {
384 /* handle possible ICMP size messages */
385 sctp_notify_mbuf(inp, stcb, net, ip, sh);
386 }
387 } else {
388 if ((stcb == NULL) && (inp != NULL)) {
389 /* reduce ref-count */
390 SCTP_INP_WLOCK(inp);
391 SCTP_INP_DECR_REF(inp);
392 SCTP_INP_WUNLOCK(inp);
393 }
394 }
395 }
396 return;
397 }
398
399 static int
400 sctp_getcred(SYSCTL_HANDLER_ARGS)
401 {
402 struct xucred xuc;
403 struct sockaddr_in addrs[2];
404 struct sctp_inpcb *inp;
405 struct sctp_nets *net;
406 struct sctp_tcb *stcb;
407 int error;
408 uint32_t vrf_id;
409
410 /* FIX, for non-bsd is this right? */
411 vrf_id = SCTP_DEFAULT_VRFID;
412
413 error = priv_check(req->td, PRIV_NETINET_GETCRED);
414
415 if (error)
416 return (error);
417
418 error = SYSCTL_IN(req, addrs, sizeof(addrs));
419 if (error)
420 return (error);
421
422 stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]),
423 sintosa(&addrs[1]),
424 &inp, &net, 1, vrf_id);
425 if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
426 if ((inp != NULL) && (stcb == NULL)) {
427 /* reduce ref-count */
428 SCTP_INP_WLOCK(inp);
429 SCTP_INP_DECR_REF(inp);
430 goto cred_can_cont;
431 }
432 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
433 error = ENOENT;
434 goto out;
435 }
436 SCTP_TCB_UNLOCK(stcb);
437 /*
438 * We use the write lock here, only since in the error leg we need
439 * it. If we used RLOCK, then we would have to
440 * wlock/decr/unlock/rlock. Which in theory could create a hole.
441 * Better to use higher wlock.
442 */
443 SCTP_INP_WLOCK(inp);
444 cred_can_cont:
445 error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
446 if (error) {
447 SCTP_INP_WUNLOCK(inp);
448 goto out;
449 }
450 cru2x(inp->sctp_socket->so_cred, &xuc);
451 SCTP_INP_WUNLOCK(inp);
452 error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
453 out:
454 return (error);
455 }
456
457 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
458 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
459
460
461 static void
462 sctp_abort(struct socket *so)
463 {
464 struct sctp_inpcb *inp;
465 uint32_t flags;
466
467 inp = (struct sctp_inpcb *)so->so_pcb;
468 if (inp == 0) {
469 return;
470 }
471 sctp_must_try_again:
472 flags = inp->sctp_flags;
473 #ifdef SCTP_LOG_CLOSING
474 sctp_log_closing(inp, NULL, 17);
475 #endif
476 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
477 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
478 #ifdef SCTP_LOG_CLOSING
479 sctp_log_closing(inp, NULL, 16);
480 #endif
481 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
482 SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
483 SOCK_LOCK(so);
484 SCTP_SB_CLEAR(so->so_snd);
485 /*
486 * same for the rcv ones, they are only here for the
487 * accounting/select.
488 */
489 SCTP_SB_CLEAR(so->so_rcv);
490
491 /* Now null out the reference, we are completely detached. */
492 so->so_pcb = NULL;
493 SOCK_UNLOCK(so);
494 } else {
495 flags = inp->sctp_flags;
496 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
497 goto sctp_must_try_again;
498 }
499 }
500 return;
501 }
502
503 static int
504 sctp_attach(struct socket *so, int proto, struct thread *p)
505 {
506 struct sctp_inpcb *inp;
507 struct inpcb *ip_inp;
508 int error;
509 uint32_t vrf_id = SCTP_DEFAULT_VRFID;
510
511 #ifdef IPSEC
512 uint32_t flags;
513
514 #endif
515 inp = (struct sctp_inpcb *)so->so_pcb;
516 if (inp != 0) {
517 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
518 return EINVAL;
519 }
520 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
521 if (error) {
522 return error;
523 }
524 error = sctp_inpcb_alloc(so, vrf_id);
525 if (error) {
526 return error;
527 }
528 inp = (struct sctp_inpcb *)so->so_pcb;
529 SCTP_INP_WLOCK(inp);
530 inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */
531 ip_inp = &inp->ip_inp.inp;
532 ip_inp->inp_vflag |= INP_IPV4;
533 ip_inp->inp_ip_ttl = MODULE_GLOBAL(MOD_INET, ip_defttl);
534 #ifdef IPSEC
535 error = ipsec_init_policy(so, &ip_inp->inp_sp);
536 #ifdef SCTP_LOG_CLOSING
537 sctp_log_closing(inp, NULL, 17);
538 #endif
539 if (error != 0) {
540 flags = inp->sctp_flags;
541 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
542 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
543 #ifdef SCTP_LOG_CLOSING
544 sctp_log_closing(inp, NULL, 15);
545 #endif
546 SCTP_INP_WUNLOCK(inp);
547 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
548 SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
549 } else {
550 SCTP_INP_WUNLOCK(inp);
551 }
552 return error;
553 }
554 #endif /* IPSEC */
555 SCTP_INP_WUNLOCK(inp);
556 return 0;
557 }
558
559 static int
560 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
561 {
562 struct sctp_inpcb *inp = NULL;
563 int error;
564
565 #ifdef INET6
566 if (addr && addr->sa_family != AF_INET) {
567 /* must be a v4 address! */
568 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
569 return EINVAL;
570 }
571 #endif /* INET6 */
572 if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) {
573 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
574 return EINVAL;
575 }
576 inp = (struct sctp_inpcb *)so->so_pcb;
577 if (inp == 0) {
578 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
579 return EINVAL;
580 }
581 error = sctp_inpcb_bind(so, addr, NULL, p);
582 return error;
583 }
584
585 void
586 sctp_close(struct socket *so)
587 {
588 struct sctp_inpcb *inp;
589 uint32_t flags;
590
591 inp = (struct sctp_inpcb *)so->so_pcb;
592 if (inp == 0)
593 return;
594
595 /*
596 * Inform all the lower layer assoc that we are done.
597 */
598 sctp_must_try_again:
599 flags = inp->sctp_flags;
600 #ifdef SCTP_LOG_CLOSING
601 sctp_log_closing(inp, NULL, 17);
602 #endif
603 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
604 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
605 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
606 (so->so_rcv.sb_cc > 0)) {
607 #ifdef SCTP_LOG_CLOSING
608 sctp_log_closing(inp, NULL, 13);
609 #endif
610 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
611 SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
612 } else {
613 #ifdef SCTP_LOG_CLOSING
614 sctp_log_closing(inp, NULL, 14);
615 #endif
616 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
617 SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
618 }
619 /*
620 * The socket is now detached, no matter what the state of
621 * the SCTP association.
622 */
623 SOCK_LOCK(so);
624 SCTP_SB_CLEAR(so->so_snd);
625 /*
626 * same for the rcv ones, they are only here for the
627 * accounting/select.
628 */
629 SCTP_SB_CLEAR(so->so_rcv);
630
631 /* Now null out the reference, we are completely detached. */
632 so->so_pcb = NULL;
633 SOCK_UNLOCK(so);
634 } else {
635 flags = inp->sctp_flags;
636 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
637 goto sctp_must_try_again;
638 }
639 }
640 return;
641 }
642
643
644 int
645 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
646 struct mbuf *control, struct thread *p);
647
648
649 int
650 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
651 struct mbuf *control, struct thread *p)
652 {
653 struct sctp_inpcb *inp;
654 int error;
655
656 inp = (struct sctp_inpcb *)so->so_pcb;
657 if (inp == 0) {
658 if (control) {
659 sctp_m_freem(control);
660 control = NULL;
661 }
662 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
663 sctp_m_freem(m);
664 return EINVAL;
665 }
666 /* Got to have an to address if we are NOT a connected socket */
667 if ((addr == NULL) &&
668 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
669 (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))
670 ) {
671 goto connected_type;
672 } else if (addr == NULL) {
673 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
674 error = EDESTADDRREQ;
675 sctp_m_freem(m);
676 if (control) {
677 sctp_m_freem(control);
678 control = NULL;
679 }
680 return (error);
681 }
682 #ifdef INET6
683 if (addr->sa_family != AF_INET) {
684 /* must be a v4 address! */
685 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
686 sctp_m_freem(m);
687 if (control) {
688 sctp_m_freem(control);
689 control = NULL;
690 }
691 error = EDESTADDRREQ;
692 return EDESTADDRREQ;
693 }
694 #endif /* INET6 */
695 connected_type:
696 /* now what about control */
697 if (control) {
698 if (inp->control) {
699 SCTP_PRINTF("huh? control set?\n");
700 sctp_m_freem(inp->control);
701 inp->control = NULL;
702 }
703 inp->control = control;
704 }
705 /* Place the data */
706 if (inp->pkt) {
707 SCTP_BUF_NEXT(inp->pkt_last) = m;
708 inp->pkt_last = m;
709 } else {
710 inp->pkt_last = inp->pkt = m;
711 }
712 if (
713 /* FreeBSD uses a flag passed */
714 ((flags & PRUS_MORETOCOME) == 0)
715 ) {
716 /*
717 * note with the current version this code will only be used
718 * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
719 * re-defining sosend to use the sctp_sosend. One can
720 * optionally switch back to this code (by changing back the
721 * definitions) but this is not advisable. This code is used
722 * by FreeBSD when sending a file with sendfile() though.
723 */
724 int ret;
725
726 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
727 inp->pkt = NULL;
728 inp->control = NULL;
729 return (ret);
730 } else {
731 return (0);
732 }
733 }
734
735 int
736 sctp_disconnect(struct socket *so)
737 {
738 struct sctp_inpcb *inp;
739
740 inp = (struct sctp_inpcb *)so->so_pcb;
741 if (inp == NULL) {
742 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
743 return (ENOTCONN);
744 }
745 SCTP_INP_RLOCK(inp);
746 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
747 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
748 if (SCTP_LIST_EMPTY(&inp->sctp_asoc_list)) {
749 /* No connection */
750 SCTP_INP_RUNLOCK(inp);
751 return (0);
752 } else {
753 struct sctp_association *asoc;
754 struct sctp_tcb *stcb;
755
756 stcb = LIST_FIRST(&inp->sctp_asoc_list);
757 if (stcb == NULL) {
758 SCTP_INP_RUNLOCK(inp);
759 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
760 return (EINVAL);
761 }
762 SCTP_TCB_LOCK(stcb);
763 asoc = &stcb->asoc;
764 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
765 /* We are about to be freed, out of here */
766 SCTP_TCB_UNLOCK(stcb);
767 SCTP_INP_RUNLOCK(inp);
768 return (0);
769 }
770 if (((so->so_options & SO_LINGER) &&
771 (so->so_linger == 0)) ||
772 (so->so_rcv.sb_cc > 0)) {
773 if (SCTP_GET_STATE(asoc) !=
774 SCTP_STATE_COOKIE_WAIT) {
775 /* Left with Data unread */
776 struct mbuf *err;
777
778 err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA);
779 if (err) {
780 /*
781 * Fill in the user
782 * initiated abort
783 */
784 struct sctp_paramhdr *ph;
785
786 ph = mtod(err, struct sctp_paramhdr *);
787 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
788 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
789 ph->param_length = htons(SCTP_BUF_LEN(err));
790 }
791 #if defined(SCTP_PANIC_ON_ABORT)
792 panic("disconnect does an abort");
793 #endif
794 sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
795 SCTP_STAT_INCR_COUNTER32(sctps_aborted);
796 }
797 SCTP_INP_RUNLOCK(inp);
798 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
799 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
800 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
801 }
802 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
803 /* No unlock tcb assoc is gone */
804 return (0);
805 }
806 if (TAILQ_EMPTY(&asoc->send_queue) &&
807 TAILQ_EMPTY(&asoc->sent_queue) &&
808 (asoc->stream_queue_cnt == 0)) {
809 /* there is nothing queued to send, so done */
810 if (asoc->locked_on_sending) {
811 goto abort_anyway;
812 }
813 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
814 (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
815 /* only send SHUTDOWN 1st time thru */
816 sctp_stop_timers_for_shutdown(stcb);
817 sctp_send_shutdown(stcb,
818 stcb->asoc.primary_destination);
819 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
820 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
821 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
822 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
823 }
824 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
825 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
826 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
827 stcb->sctp_ep, stcb,
828 asoc->primary_destination);
829 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
830 stcb->sctp_ep, stcb,
831 asoc->primary_destination);
832 }
833 } else {
834 /*
835 * we still got (or just got) data to send,
836 * so set SHUTDOWN_PENDING
837 */
838 /*
839 * XXX sockets draft says that SCTP_EOF
840 * should be sent with no data. currently,
841 * we will allow user data to be sent first
842 * and move to SHUTDOWN-PENDING
843 */
844 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
845 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
846 asoc->primary_destination);
847 if (asoc->locked_on_sending) {
848 /* Locked to send out the data */
849 struct sctp_stream_queue_pending *sp;
850
851 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
852 if (sp == NULL) {
853 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
854 asoc->locked_on_sending->stream_no);
855 } else {
856 if ((sp->length == 0) && (sp->msg_is_complete == 0))
857 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
858 }
859 }
860 if (TAILQ_EMPTY(&asoc->send_queue) &&
861 TAILQ_EMPTY(&asoc->sent_queue) &&
862 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
863 struct mbuf *op_err;
864
865 abort_anyway:
866 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
867 0, M_DONTWAIT, 1, MT_DATA);
868 if (op_err) {
869 /*
870 * Fill in the user
871 * initiated abort
872 */
873 struct sctp_paramhdr *ph;
874 uint32_t *ippp;
875
876 SCTP_BUF_LEN(op_err) =
877 (sizeof(struct sctp_paramhdr) + sizeof(uint32_t));
878 ph = mtod(op_err,
879 struct sctp_paramhdr *);
880 ph->param_type = htons(
881 SCTP_CAUSE_USER_INITIATED_ABT);
882 ph->param_length = htons(SCTP_BUF_LEN(op_err));
883 ippp = (uint32_t *) (ph + 1);
884 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4);
885 }
886 #if defined(SCTP_PANIC_ON_ABORT)
887 panic("disconnect does an abort");
888 #endif
889
890 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
891 sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
892 SCTP_STAT_INCR_COUNTER32(sctps_aborted);
893 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
894 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
895 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
896 }
897 SCTP_INP_RUNLOCK(inp);
898 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
899 return (0);
900 } else {
901 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
902 }
903 }
904 SCTP_TCB_UNLOCK(stcb);
905 SCTP_INP_RUNLOCK(inp);
906 return (0);
907 }
908 /* not reached */
909 } else {
910 /* UDP model does not support this */
911 SCTP_INP_RUNLOCK(inp);
912 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
913 return EOPNOTSUPP;
914 }
915 }
916
917 int
918 sctp_flush(struct socket *so, int how)
919 {
920 /*
921 * We will just clear out the values and let subsequent close clear
922 * out the data, if any. Note if the user did a shutdown(SHUT_RD)
923 * they will not be able to read the data, the socket will block
924 * that from happening.
925 */
926 if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
927 /*
928 * First make sure the sb will be happy, we don't use these
929 * except maybe the count
930 */
931 so->so_rcv.sb_cc = 0;
932 so->so_rcv.sb_mbcnt = 0;
933 so->so_rcv.sb_mb = NULL;
934 }
935 if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
936 /*
937 * First make sure the sb will be happy, we don't use these
938 * except maybe the count
939 */
940 so->so_snd.sb_cc = 0;
941 so->so_snd.sb_mbcnt = 0;
942 so->so_snd.sb_mb = NULL;
943
944 }
945 return (0);
946 }
947
948 int
949 sctp_shutdown(struct socket *so)
950 {
951 struct sctp_inpcb *inp;
952
953 inp = (struct sctp_inpcb *)so->so_pcb;
954 if (inp == 0) {
955 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
956 return EINVAL;
957 }
958 SCTP_INP_RLOCK(inp);
959 /* For UDP model this is a invalid call */
960 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
961 /* Restore the flags that the soshutdown took away. */
962 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
963 /* This proc will wakeup for read and do nothing (I hope) */
964 SCTP_INP_RUNLOCK(inp);
965 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
966 return (EOPNOTSUPP);
967 }
968 /*
969 * Ok if we reach here its the TCP model and it is either a SHUT_WR
970 * or SHUT_RDWR. This means we put the shutdown flag against it.
971 */
972 {
973 struct sctp_tcb *stcb;
974 struct sctp_association *asoc;
975
976 socantsendmore(so);
977
978 stcb = LIST_FIRST(&inp->sctp_asoc_list);
979 if (stcb == NULL) {
980 /*
981 * Ok we hit the case that the shutdown call was
982 * made after an abort or something. Nothing to do
983 * now.
984 */
985 SCTP_INP_RUNLOCK(inp);
986 return (0);
987 }
988 SCTP_TCB_LOCK(stcb);
989 asoc = &stcb->asoc;
990 if (TAILQ_EMPTY(&asoc->send_queue) &&
991 TAILQ_EMPTY(&asoc->sent_queue) &&
992 (asoc->stream_queue_cnt == 0)) {
993 if (asoc->locked_on_sending) {
994 goto abort_anyway;
995 }
996 /* there is nothing queued to send, so I'm done... */
997 if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
998 /* only send SHUTDOWN the first time through */
999 sctp_stop_timers_for_shutdown(stcb);
1000 sctp_send_shutdown(stcb,
1001 stcb->asoc.primary_destination);
1002 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1003 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
1004 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
1005 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
1006 }
1007 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1008 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1009 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1010 stcb->sctp_ep, stcb,
1011 asoc->primary_destination);
1012 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1013 stcb->sctp_ep, stcb,
1014 asoc->primary_destination);
1015 }
1016 } else {
1017 /*
1018 * we still got (or just got) data to send, so set
1019 * SHUTDOWN_PENDING
1020 */
1021 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1022 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1023 asoc->primary_destination);
1024
1025 if (asoc->locked_on_sending) {
1026 /* Locked to send out the data */
1027 struct sctp_stream_queue_pending *sp;
1028
1029 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1030 if (sp == NULL) {
1031 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1032 asoc->locked_on_sending->stream_no);
1033 } else {
1034 if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1035 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1036 }
1037 }
1038 }
1039 if (TAILQ_EMPTY(&asoc->send_queue) &&
1040 TAILQ_EMPTY(&asoc->sent_queue) &&
1041 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1042 struct mbuf *op_err;
1043
1044 abort_anyway:
1045 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
1046 0, M_DONTWAIT, 1, MT_DATA);
1047 if (op_err) {
1048 /* Fill in the user initiated abort */
1049 struct sctp_paramhdr *ph;
1050 uint32_t *ippp;
1051
1052 SCTP_BUF_LEN(op_err) =
1053 sizeof(struct sctp_paramhdr) + sizeof(uint32_t);
1054 ph = mtod(op_err,
1055 struct sctp_paramhdr *);
1056 ph->param_type = htons(
1057 SCTP_CAUSE_USER_INITIATED_ABT);
1058 ph->param_length = htons(SCTP_BUF_LEN(op_err));
1059 ippp = (uint32_t *) (ph + 1);
1060 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1061 }
1062 #if defined(SCTP_PANIC_ON_ABORT)
1063 panic("shutdown does an abort");
1064 #endif
1065 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1066 sctp_abort_an_association(stcb->sctp_ep, stcb,
1067 SCTP_RESPONSE_TO_USER_REQ,
1068 op_err, SCTP_SO_LOCKED);
1069 goto skip_unlock;
1070 } else {
1071 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1072 }
1073 }
1074 SCTP_TCB_UNLOCK(stcb);
1075 }
1076 skip_unlock:
1077 SCTP_INP_RUNLOCK(inp);
1078 return 0;
1079 }
1080
1081 /*
1082 * copies a "user" presentable address and removes embedded scope, etc.
1083 * returns 0 on success, 1 on error
1084 */
1085 static uint32_t
1086 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1087 {
1088 #ifdef INET6
1089 struct sockaddr_in6 lsa6;
1090
1091 sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1092 &lsa6);
1093 #endif
1094 memcpy(ss, sa, sa->sa_len);
1095 return (0);
1096 }
1097
1098
1099
1100 /*
1101 * NOTE: assumes addr lock is held
1102 */
1103 static size_t
1104 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1105 struct sctp_tcb *stcb,
1106 size_t limit,
1107 struct sockaddr_storage *sas,
1108 uint32_t vrf_id)
1109 {
1110 struct sctp_ifn *sctp_ifn;
1111 struct sctp_ifa *sctp_ifa;
1112 int loopback_scope, ipv4_local_scope, local_scope, site_scope;
1113 size_t actual;
1114 int ipv4_addr_legal, ipv6_addr_legal;
1115 struct sctp_vrf *vrf;
1116
1117 actual = 0;
1118 if (limit <= 0)
1119 return (actual);
1120
1121 if (stcb) {
1122 /* Turn on all the appropriate scope */
1123 loopback_scope = stcb->asoc.loopback_scope;
1124 ipv4_local_scope = stcb->asoc.ipv4_local_scope;
1125 local_scope = stcb->asoc.local_scope;
1126 site_scope = stcb->asoc.site_scope;
1127 } else {
1128 /* Turn on ALL scope, since we look at the EP */
1129 loopback_scope = ipv4_local_scope = local_scope =
1130 site_scope = 1;
1131 }
1132 ipv4_addr_legal = ipv6_addr_legal = 0;
1133 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1134 ipv6_addr_legal = 1;
1135 if (SCTP_IPV6_V6ONLY(inp) == 0) {
1136 ipv4_addr_legal = 1;
1137 }
1138 } else {
1139 ipv4_addr_legal = 1;
1140 }
1141 vrf = sctp_find_vrf(vrf_id);
1142 if (vrf == NULL) {
1143 return (0);
1144 }
1145 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1146 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1147 if ((loopback_scope == 0) &&
1148 SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1149 /* Skip loopback if loopback_scope not set */
1150 continue;
1151 }
1152 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1153 if (stcb) {
1154 /*
1155 * For the BOUND-ALL case, the list
1156 * associated with a TCB is Always
1157 * considered a reverse list.. i.e.
1158 * it lists addresses that are NOT
1159 * part of the association. If this
1160 * is one of those we must skip it.
1161 */
1162 if (sctp_is_addr_restricted(stcb,
1163 sctp_ifa)) {
1164 continue;
1165 }
1166 }
1167 switch (sctp_ifa->address.sa.sa_family) {
1168 case AF_INET:
1169 if (ipv4_addr_legal) {
1170 struct sockaddr_in *sin;
1171
1172 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
1173 if (sin->sin_addr.s_addr == 0) {
1174 /*
1175 * we skip
1176 * unspecifed
1177 * addresses
1178 */
1179 continue;
1180 }
1181 if ((ipv4_local_scope == 0) &&
1182 (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1183 continue;
1184 }
1185 #ifdef INET6
1186 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1187 in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1188 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1189 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1190 actual += sizeof(struct sockaddr_in6);
1191 } else {
1192 #endif
1193 memcpy(sas, sin, sizeof(*sin));
1194 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1195 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1196 actual += sizeof(*sin);
1197 #ifdef INET6
1198 }
1199 #endif
1200 if (actual >= limit) {
1201 return (actual);
1202 }
1203 } else {
1204 continue;
1205 }
1206 break;
1207 #ifdef INET6
1208 case AF_INET6:
1209 if (ipv6_addr_legal) {
1210 struct sockaddr_in6 *sin6;
1211
1212 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
1213 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1214 /*
1215 * we skip
1216 * unspecifed
1217 * addresses
1218 */
1219 continue;
1220 }
1221 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1222 if (local_scope == 0)
1223 continue;
1224 if (sin6->sin6_scope_id == 0) {
1225 if (sa6_recoverscope(sin6) != 0)
1226 /*
1227 *
1228 * bad
1229 *
1230 * li
1231 * nk
1232 *
1233 * loc
1234 * al
1235 *
1236 * add
1237 * re
1238 * ss
1239 * */
1240 continue;
1241 }
1242 }
1243 if ((site_scope == 0) &&
1244 (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1245 continue;
1246 }
1247 memcpy(sas, sin6, sizeof(*sin6));
1248 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1249 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1250 actual += sizeof(*sin6);
1251 if (actual >= limit) {
1252 return (actual);
1253 }
1254 } else {
1255 continue;
1256 }
1257 break;
1258 #endif
1259 default:
1260 /* TSNH */
1261 break;
1262 }
1263 }
1264 }
1265 } else {
1266 struct sctp_laddr *laddr;
1267
1268 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1269 if (stcb) {
1270 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1271 continue;
1272 }
1273 }
1274 if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1275 continue;
1276
1277 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1278 sas = (struct sockaddr_storage *)((caddr_t)sas +
1279 laddr->ifa->address.sa.sa_len);
1280 actual += laddr->ifa->address.sa.sa_len;
1281 if (actual >= limit) {
1282 return (actual);
1283 }
1284 }
1285 }
1286 return (actual);
1287 }
1288
1289 static size_t
1290 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1291 struct sctp_tcb *stcb,
1292 size_t limit,
1293 struct sockaddr_storage *sas)
1294 {
1295 size_t size = 0;
1296
1297 SCTP_IPI_ADDR_RLOCK();
1298 /* fill up addresses for the endpoint's default vrf */
1299 size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1300 inp->def_vrf_id);
1301 SCTP_IPI_ADDR_RUNLOCK();
1302 return (size);
1303 }
1304
1305 /*
1306 * NOTE: assumes addr lock is held
1307 */
1308 static int
1309 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1310 {
1311 int cnt = 0;
1312 struct sctp_vrf *vrf = NULL;
1313
1314 /*
1315 * In both sub-set bound an bound_all cases we return the MAXIMUM
1316 * number of addresses that you COULD get. In reality the sub-set
1317 * bound may have an exclusion list for a given TCB OR in the
1318 * bound-all case a TCB may NOT include the loopback or other
1319 * addresses as well.
1320 */
1321 vrf = sctp_find_vrf(vrf_id);
1322 if (vrf == NULL) {
1323 return (0);
1324 }
1325 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1326 struct sctp_ifn *sctp_ifn;
1327 struct sctp_ifa *sctp_ifa;
1328
1329 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1330 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1331 /* Count them if they are the right type */
1332 if (sctp_ifa->address.sa.sa_family == AF_INET) {
1333 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1334 cnt += sizeof(struct sockaddr_in6);
1335 else
1336 cnt += sizeof(struct sockaddr_in);
1337
1338 } else if (sctp_ifa->address.sa.sa_family == AF_INET6)
1339 cnt += sizeof(struct sockaddr_in6);
1340 }
1341 }
1342 } else {
1343 struct sctp_laddr *laddr;
1344
1345 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1346 if (laddr->ifa->address.sa.sa_family == AF_INET) {
1347 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1348 cnt += sizeof(struct sockaddr_in6);
1349 else
1350 cnt += sizeof(struct sockaddr_in);
1351
1352 } else if (laddr->ifa->address.sa.sa_family == AF_INET6)
1353 cnt += sizeof(struct sockaddr_in6);
1354 }
1355 }
1356 return (cnt);
1357 }
1358
1359 static int
1360 sctp_count_max_addresses(struct sctp_inpcb *inp)
1361 {
1362 int cnt = 0;
1363
1364 SCTP_IPI_ADDR_RLOCK();
1365 /* count addresses for the endpoint's default VRF */
1366 cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1367 SCTP_IPI_ADDR_RUNLOCK();
1368 return (cnt);
1369 }
1370
1371 static int
1372 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1373 size_t optsize, void *p, int delay)
1374 {
1375 int error = 0;
1376 int creat_lock_on = 0;
1377 struct sctp_tcb *stcb = NULL;
1378 struct sockaddr *sa;
1379 int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1380 int added = 0;
1381 uint32_t vrf_id;
1382 int bad_addresses = 0;
1383 sctp_assoc_t *a_id;
1384
1385 SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1386
1387 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1388 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1389 /* We are already connected AND the TCP model */
1390 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1391 return (EADDRINUSE);
1392 }
1393 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1394 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1395 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1396 return (EINVAL);
1397 }
1398 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1399 SCTP_INP_RLOCK(inp);
1400 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1401 SCTP_INP_RUNLOCK(inp);
1402 }
1403 if (stcb) {
1404 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1405 return (EALREADY);
1406 }
1407 SCTP_INP_INCR_REF(inp);
1408 SCTP_ASOC_CREATE_LOCK(inp);
1409 creat_lock_on = 1;
1410 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1411 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1412 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1413 error = EFAULT;
1414 goto out_now;
1415 }
1416 totaddrp = (int *)optval;
1417 totaddr = *totaddrp;
1418 sa = (struct sockaddr *)(totaddrp + 1);
1419 stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1420 if ((stcb != NULL) || bad_addresses) {
1421 /* Already have or am bring up an association */
1422 SCTP_ASOC_CREATE_UNLOCK(inp);
1423 creat_lock_on = 0;
1424 if (stcb)
1425 SCTP_TCB_UNLOCK(stcb);
1426 if (bad_addresses == 0) {
1427 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1428 error = EALREADY;
1429 }
1430 goto out_now;
1431 }
1432 #ifdef INET6
1433 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1434 (num_v6 > 0)) {
1435 error = EINVAL;
1436 goto out_now;
1437 }
1438 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1439 (num_v4 > 0)) {
1440 struct in6pcb *inp6;
1441
1442 inp6 = (struct in6pcb *)inp;
1443 if (SCTP_IPV6_V6ONLY(inp6)) {
1444 /*
1445 * if IPV6_V6ONLY flag, ignore connections destined
1446 * to a v4 addr or v4-mapped addr
1447 */
1448 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1449 error = EINVAL;
1450 goto out_now;
1451 }
1452 }
1453 #endif /* INET6 */
1454 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1455 SCTP_PCB_FLAGS_UNBOUND) {
1456 /* Bind a ephemeral port */
1457 error = sctp_inpcb_bind(so, NULL, NULL, p);
1458 if (error) {
1459 goto out_now;
1460 }
1461 }
1462 /* FIX ME: do we want to pass in a vrf on the connect call? */
1463 vrf_id = inp->def_vrf_id;
1464
1465
1466 /* We are GOOD to go */
1467 stcb = sctp_aloc_assoc(inp, sa, 1, &error, 0, vrf_id,
1468 (struct thread *)p
1469 );
1470 if (stcb == NULL) {
1471 /* Gak! no memory */
1472 goto out_now;
1473 }
1474 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1475 /* move to second address */
1476 if (sa->sa_family == AF_INET)
1477 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1478 else
1479 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1480
1481 error = 0;
1482 added = sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1483 /* Fill in the return id */
1484 if (error) {
1485 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
1486 goto out_now;
1487 }
1488 a_id = (sctp_assoc_t *) optval;
1489 *a_id = sctp_get_associd(stcb);
1490
1491 /* initialize authentication parameters for the assoc */
1492 sctp_initialize_auth_params(inp, stcb);
1493
1494 if (delay) {
1495 /* doing delayed connection */
1496 stcb->asoc.delayed_connection = 1;
1497 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1498 } else {
1499 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1500 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1501 }
1502 SCTP_TCB_UNLOCK(stcb);
1503 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1504 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1505 /* Set the connected flag so we can queue data */
1506 soisconnecting(so);
1507 }
1508 out_now:
1509 if (creat_lock_on) {
1510 SCTP_ASOC_CREATE_UNLOCK(inp);
1511 }
1512 SCTP_INP_DECR_REF(inp);
1513 return error;
1514 }
1515
1516 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1517 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1518 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1519 SCTP_INP_RLOCK(inp); \
1520 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1521 if (stcb) { \
1522 SCTP_TCB_LOCK(stcb); \
1523 } \
1524 SCTP_INP_RUNLOCK(inp); \
1525 } else if (assoc_id != 0) { \
1526 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1527 if (stcb == NULL) { \
1528 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1529 error = ENOENT; \
1530 break; \
1531 } \
1532 } else { \
1533 stcb = NULL; \
1534 } \
1535 }
1536
1537
1538 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1539 if (size < sizeof(type)) { \
1540 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1541 error = EINVAL; \
1542 break; \
1543 } else { \
1544 destp = (type *)srcp; \
1545 } \
1546 }
1547
1548 static int
1549 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1550 void *p)
1551 {
1552 struct sctp_inpcb *inp = NULL;
1553 int error, val = 0;
1554 struct sctp_tcb *stcb = NULL;
1555
1556 if (optval == NULL) {
1557 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1558 return (EINVAL);
1559 }
1560 inp = (struct sctp_inpcb *)so->so_pcb;
1561 if (inp == 0) {
1562 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1563 return EINVAL;
1564 }
1565 error = 0;
1566
1567 switch (optname) {
1568 case SCTP_NODELAY:
1569 case SCTP_AUTOCLOSE:
1570 case SCTP_EXPLICIT_EOR:
1571 case SCTP_AUTO_ASCONF:
1572 case SCTP_DISABLE_FRAGMENTS:
1573 case SCTP_I_WANT_MAPPED_V4_ADDR:
1574 case SCTP_USE_EXT_RCVINFO:
1575 SCTP_INP_RLOCK(inp);
1576 switch (optname) {
1577 case SCTP_DISABLE_FRAGMENTS:
1578 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1579 break;
1580 case SCTP_I_WANT_MAPPED_V4_ADDR:
1581 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1582 break;
1583 case SCTP_AUTO_ASCONF:
1584 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1585 /* only valid for bound all sockets */
1586 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1587 } else {
1588 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1589 error = EINVAL;
1590 goto flags_out;
1591 }
1592 break;
1593 case SCTP_EXPLICIT_EOR:
1594 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1595 break;
1596 case SCTP_NODELAY:
1597 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1598 break;
1599 case SCTP_USE_EXT_RCVINFO:
1600 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1601 break;
1602 case SCTP_AUTOCLOSE:
1603 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1604 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1605 else
1606 val = 0;
1607 break;
1608
1609 default:
1610 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1611 error = ENOPROTOOPT;
1612 } /* end switch (sopt->sopt_name) */
1613 if (optname != SCTP_AUTOCLOSE) {
1614 /* make it an "on/off" value */
1615 val = (val != 0);
1616 }
1617 if (*optsize < sizeof(val)) {
1618 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1619 error = EINVAL;
1620 }
1621 flags_out:
1622 SCTP_INP_RUNLOCK(inp);
1623 if (error == 0) {
1624 /* return the option value */
1625 *(int *)optval = val;
1626 *optsize = sizeof(val);
1627 }
1628 break;
1629 case SCTP_GET_PACKET_LOG:
1630 {
1631 #ifdef SCTP_PACKET_LOGGING
1632 uint8_t *target;
1633 int ret;
1634
1635 SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1636 ret = sctp_copy_out_packet_log(target, (int)*optsize);
1637 *optsize = ret;
1638 #else
1639 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1640 error = EOPNOTSUPP;
1641 #endif
1642 break;
1643 }
1644 case SCTP_REUSE_PORT:
1645 {
1646 uint32_t *value;
1647
1648 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1649 /* Can't do this for a 1-m socket */
1650 error = EINVAL;
1651 break;
1652 }
1653 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1654 *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1655 *optsize = sizeof(uint32_t);
1656 }
1657 break;
1658 case SCTP_PARTIAL_DELIVERY_POINT:
1659 {
1660 uint32_t *value;
1661
1662 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1663 *value = inp->partial_delivery_point;
1664 *optsize = sizeof(uint32_t);
1665 }
1666 break;
1667 case SCTP_FRAGMENT_INTERLEAVE:
1668 {
1669 uint32_t *value;
1670
1671 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1672 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1673 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1674 *value = SCTP_FRAG_LEVEL_2;
1675 } else {
1676 *value = SCTP_FRAG_LEVEL_1;
1677 }
1678 } else {
1679 *value = SCTP_FRAG_LEVEL_0;
1680 }
1681 *optsize = sizeof(uint32_t);
1682 }
1683 break;
1684 case SCTP_CMT_ON_OFF:
1685 {
1686 struct sctp_assoc_value *av;
1687
1688 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1689 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
1690 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1691 if (stcb) {
1692 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1693 SCTP_TCB_UNLOCK(stcb);
1694
1695 } else {
1696 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1697 error = ENOTCONN;
1698 }
1699 } else {
1700 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1701 error = ENOPROTOOPT;
1702 }
1703 *optsize = sizeof(*av);
1704 }
1705 break;
1706 /* JRS - Get socket option for pluggable congestion control */
1707 case SCTP_PLUGGABLE_CC:
1708 {
1709 struct sctp_assoc_value *av;
1710
1711 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1712 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1713 if (stcb) {
1714 av->assoc_value = stcb->asoc.congestion_control_module;
1715 SCTP_TCB_UNLOCK(stcb);
1716 } else {
1717 av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1718 }
1719 *optsize = sizeof(*av);
1720 }
1721 break;
1722 case SCTP_GET_ADDR_LEN:
1723 {
1724 struct sctp_assoc_value *av;
1725
1726 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1727 error = EINVAL;
1728 #ifdef INET
1729 if (av->assoc_value == AF_INET) {
1730 av->assoc_value = sizeof(struct sockaddr_in);
1731 error = 0;
1732 }
1733 #endif
1734 #ifdef INET6
1735 if (av->assoc_value == AF_INET6) {
1736 av->assoc_value = sizeof(struct sockaddr_in6);
1737 error = 0;
1738 }
1739 #endif
1740 if (error) {
1741 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1742 }
1743 *optsize = sizeof(*av);
1744 }
1745 break;
1746 case SCTP_GET_ASSOC_NUMBER:
1747 {
1748 uint32_t *value, cnt;
1749
1750 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1751 cnt = 0;
1752 SCTP_INP_RLOCK(inp);
1753 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1754 cnt++;
1755 }
1756 SCTP_INP_RUNLOCK(inp);
1757 *value = cnt;
1758 *optsize = sizeof(uint32_t);
1759 }
1760 break;
1761
1762 case SCTP_GET_ASSOC_ID_LIST:
1763 {
1764 struct sctp_assoc_ids *ids;
1765 unsigned int at, limit;
1766
1767 SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1768 at = 0;
1769 limit = *optsize / sizeof(sctp_assoc_t);
1770 SCTP_INP_RLOCK(inp);
1771 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1772 if (at < limit) {
1773 ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1774 } else {
1775 error = EINVAL;
1776 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1777 break;
1778 }
1779 }
1780 SCTP_INP_RUNLOCK(inp);
1781 *optsize = at * sizeof(sctp_assoc_t);
1782 }
1783 break;
1784 case SCTP_CONTEXT:
1785 {
1786 struct sctp_assoc_value *av;
1787
1788 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1789 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1790
1791 if (stcb) {
1792 av->assoc_value = stcb->asoc.context;
1793 SCTP_TCB_UNLOCK(stcb);
1794 } else {
1795 SCTP_INP_RLOCK(inp);
1796 av->assoc_value = inp->sctp_context;
1797 SCTP_INP_RUNLOCK(inp);
1798 }
1799 *optsize = sizeof(*av);
1800 }
1801 break;
1802 case SCTP_VRF_ID:
1803 {
1804 uint32_t *default_vrfid;
1805
1806 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1807 *default_vrfid = inp->def_vrf_id;
1808 break;
1809 }
1810 case SCTP_GET_ASOC_VRF:
1811 {
1812 struct sctp_assoc_value *id;
1813
1814 SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1815 SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1816 if (stcb == NULL) {
1817 error = EINVAL;
1818 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1819 break;
1820 }
1821 id->assoc_value = stcb->asoc.vrf_id;
1822 break;
1823 }
1824 case SCTP_GET_VRF_IDS:
1825 {
1826 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1827 error = EOPNOTSUPP;
1828 break;
1829 }
1830 case SCTP_GET_NONCE_VALUES:
1831 {
1832 struct sctp_get_nonce_values *gnv;
1833
1834 SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1835 SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1836
1837 if (stcb) {
1838 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1839 gnv->gn_local_tag = stcb->asoc.my_vtag;
1840 SCTP_TCB_UNLOCK(stcb);
1841 } else {
1842 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1843 error = ENOTCONN;
1844 }
1845 *optsize = sizeof(*gnv);
1846 }
1847 break;
1848 case SCTP_DELAYED_SACK:
1849 {
1850 struct sctp_sack_info *sack;
1851
1852 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1853 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1854 if (stcb) {
1855 sack->sack_delay = stcb->asoc.delayed_ack;
1856 sack->sack_freq = stcb->asoc.sack_freq;
1857 SCTP_TCB_UNLOCK(stcb);
1858 } else {
1859 SCTP_INP_RLOCK(inp);
1860 sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
1861 sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
1862 SCTP_INP_RUNLOCK(inp);
1863 }
1864 *optsize = sizeof(*sack);
1865 }
1866 break;
1867
1868 case SCTP_GET_SNDBUF_USE:
1869 {
1870 struct sctp_sockstat *ss;
1871
1872 SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
1873 SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
1874
1875 if (stcb) {
1876 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
1877 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
1878 stcb->asoc.size_on_all_streams);
1879 SCTP_TCB_UNLOCK(stcb);
1880 } else {
1881 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1882 error = ENOTCONN;
1883 }
1884 *optsize = sizeof(struct sctp_sockstat);
1885 }
1886 break;
1887 case SCTP_MAX_BURST:
1888 {
1889 uint8_t *value;
1890
1891 SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize);
1892
1893 SCTP_INP_RLOCK(inp);
1894 *value = inp->sctp_ep.max_burst;
1895 SCTP_INP_RUNLOCK(inp);
1896 *optsize = sizeof(uint8_t);
1897 }
1898 break;
1899 case SCTP_MAXSEG:
1900 {
1901 struct sctp_assoc_value *av;
1902 int ovh;
1903
1904 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1905 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1906
1907 if (stcb) {
1908 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
1909 SCTP_TCB_UNLOCK(stcb);
1910 } else {
1911 SCTP_INP_RLOCK(inp);
1912 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1913 ovh = SCTP_MED_OVERHEAD;
1914 } else {
1915 ovh = SCTP_MED_V4_OVERHEAD;
1916 }
1917 if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
1918 av->assoc_value = 0;
1919 else
1920 av->assoc_value = inp->sctp_frag_point - ovh;
1921 SCTP_INP_RUNLOCK(inp);
1922 }
1923 *optsize = sizeof(struct sctp_assoc_value);
1924 }
1925 break;
1926 case SCTP_GET_STAT_LOG:
1927 error = sctp_fill_stat_log(optval, optsize);
1928 break;
1929 case SCTP_EVENTS:
1930 {
1931 struct sctp_event_subscribe *events;
1932
1933 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
1934 memset(events, 0, sizeof(*events));
1935 SCTP_INP_RLOCK(inp);
1936 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
1937 events->sctp_data_io_event = 1;
1938
1939 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
1940 events->sctp_association_event = 1;
1941
1942 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
1943 events->sctp_address_event = 1;
1944
1945 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
1946 events->sctp_send_failure_event = 1;
1947
1948 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
1949 events->sctp_peer_error_event = 1;
1950
1951 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
1952 events->sctp_shutdown_event = 1;
1953
1954 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
1955 events->sctp_partial_delivery_event = 1;
1956
1957 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
1958 events->sctp_adaptation_layer_event = 1;
1959
1960 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
1961 events->sctp_authentication_event = 1;
1962
1963 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
1964 events->sctp_stream_reset_events = 1;
1965 SCTP_INP_RUNLOCK(inp);
1966 *optsize = sizeof(struct sctp_event_subscribe);
1967 }
1968 break;
1969
1970 case SCTP_ADAPTATION_LAYER:
1971 {
1972 uint32_t *value;
1973
1974 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1975
1976 SCTP_INP_RLOCK(inp);
1977 *value = inp->sctp_ep.adaptation_layer_indicator;
1978 SCTP_INP_RUNLOCK(inp);
1979 *optsize = sizeof(uint32_t);
1980 }
1981 break;
1982 case SCTP_SET_INITIAL_DBG_SEQ:
1983 {
1984 uint32_t *value;
1985
1986 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1987 SCTP_INP_RLOCK(inp);
1988 *value = inp->sctp_ep.initial_sequence_debug;
1989 SCTP_INP_RUNLOCK(inp);
1990 *optsize = sizeof(uint32_t);
1991 }
1992 break;
1993 case SCTP_GET_LOCAL_ADDR_SIZE:
1994 {
1995 uint32_t *value;
1996
1997 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1998 SCTP_INP_RLOCK(inp);
1999 *value = sctp_count_max_addresses(inp);
2000 SCTP_INP_RUNLOCK(inp);
2001 *optsize = sizeof(uint32_t);
2002 }
2003 break;
2004 case SCTP_GET_REMOTE_ADDR_SIZE:
2005 {
2006 uint32_t *value;
2007 size_t size;
2008 struct sctp_nets *net;
2009
2010 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2011 /* FIXME MT: change to sctp_assoc_value? */
2012 SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2013
2014 if (stcb) {
2015 size = 0;
2016 /* Count the sizes */
2017 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2018 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) ||
2019 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) {
2020 size += sizeof(struct sockaddr_in6);
2021 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) {
2022 size += sizeof(struct sockaddr_in);
2023 } else {
2024 /* huh */
2025 break;
2026 }
2027 }
2028 SCTP_TCB_UNLOCK(stcb);
2029 *value = (uint32_t) size;
2030 } else {
2031 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2032 error = ENOTCONN;
2033 }
2034 *optsize = sizeof(uint32_t);
2035 }
2036 break;
2037 case SCTP_GET_PEER_ADDRESSES:
2038 /*
2039 * Get the address information, an array is passed in to
2040 * fill up we pack it.
2041 */
2042 {
2043 size_t cpsz, left;
2044 struct sockaddr_storage *sas;
2045 struct sctp_nets *net;
2046 struct sctp_getaddresses *saddr;
2047
2048 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2049 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2050
2051 if (stcb) {
2052 left = (*optsize) - sizeof(struct sctp_getaddresses);
2053 *optsize = sizeof(struct sctp_getaddresses);
2054 sas = (struct sockaddr_storage *)&saddr->addr[0];
2055
2056 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2057 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) ||
2058 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) {
2059 cpsz = sizeof(struct sockaddr_in6);
2060 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) {
2061 cpsz = sizeof(struct sockaddr_in);
2062 } else {
2063 /* huh */
2064 break;
2065 }
2066 if (left < cpsz) {
2067 /* not enough room. */
2068 break;
2069 }
2070 #ifdef INET6
2071 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2072 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) {
2073 /* Must map the address */
2074 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr,
2075 (struct sockaddr_in6 *)sas);
2076 } else {
2077 #endif
2078 memcpy(sas, &net->ro._l_addr, cpsz);
2079 #ifdef INET6
2080 }
2081 #endif
2082 ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2083
2084 sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2085 left -= cpsz;
2086 *optsize += cpsz;
2087 }
2088 SCTP_TCB_UNLOCK(stcb);
2089 } else {
2090 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2091 error = ENOENT;
2092 }
2093 }
2094 break;
2095 case SCTP_GET_LOCAL_ADDRESSES:
2096 {
2097 size_t limit, actual;
2098 struct sockaddr_storage *sas;
2099 struct sctp_getaddresses *saddr;
2100
2101 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2102 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2103
2104 sas = (struct sockaddr_storage *)&saddr->addr[0];
2105 limit = *optsize - sizeof(sctp_assoc_t);
2106 actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2107 if (stcb) {
2108 SCTP_TCB_UNLOCK(stcb);
2109 }
2110 *optsize = sizeof(struct sockaddr_storage) + actual;
2111 }
2112 break;
2113 case SCTP_PEER_ADDR_PARAMS:
2114 {
2115 struct sctp_paddrparams *paddrp;
2116 struct sctp_nets *net;
2117
2118 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2119 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2120
2121 net = NULL;
2122 if (stcb) {
2123 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
2124 } else {
2125 /*
2126 * We increment here since
2127 * sctp_findassociation_ep_addr() wil do a
2128 * decrement if it finds the stcb as long as
2129 * the locked tcb (last argument) is NOT a
2130 * TCB.. aka NULL.
2131 */
2132 SCTP_INP_INCR_REF(inp);
2133 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL);
2134 if (stcb == NULL) {
2135 SCTP_INP_DECR_REF(inp);
2136 }
2137 }
2138 if (stcb && (net == NULL)) {
2139 struct sockaddr *sa;
2140
2141 sa = (struct sockaddr *)&paddrp->spp_address;
2142 if (sa->sa_family == AF_INET) {
2143 struct sockaddr_in *sin;
2144
2145 sin = (struct sockaddr_in *)sa;
2146 if (sin->sin_addr.s_addr) {
2147 error = EINVAL;
2148 SCTP_TCB_UNLOCK(stcb);
2149 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2150 break;
2151 }
2152 } else if (sa->sa_family == AF_INET6) {
2153 struct sockaddr_in6 *sin6;
2154
2155 sin6 = (struct sockaddr_in6 *)sa;
2156 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2157 error = EINVAL;
2158 SCTP_TCB_UNLOCK(stcb);
2159 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2160 break;
2161 }
2162 } else {
2163 error = EAFNOSUPPORT;
2164 SCTP_TCB_UNLOCK(stcb);
2165 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2166 break;
2167 }
2168 }
2169 if (stcb) {
2170 /* Applys to the specific association */
2171 paddrp->spp_flags = 0;
2172 if (net) {
2173 int ovh;
2174
2175 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2176 ovh = SCTP_MED_OVERHEAD;
2177 } else {
2178 ovh = SCTP_MED_V4_OVERHEAD;
2179 }
2180
2181
2182 paddrp->spp_pathmaxrxt = net->failure_threshold;
2183 paddrp->spp_pathmtu = net->mtu - ovh;
2184 /* get flags for HB */
2185 if (net->dest_state & SCTP_ADDR_NOHB)
2186 paddrp->spp_flags |= SPP_HB_DISABLE;
2187 else
2188 paddrp->spp_flags |= SPP_HB_ENABLE;
2189 /* get flags for PMTU */
2190 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
2191 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2192 } else {
2193 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2194 }
2195 #ifdef INET
2196 if (net->ro._l_addr.sin.sin_family == AF_INET) {
2197 paddrp->spp_ipv4_tos = net->tos_flowlabel & 0x000000fc;
2198 paddrp->spp_flags |= SPP_IPV4_TOS;
2199 }
2200 #endif
2201 #ifdef INET6
2202 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) {
2203 paddrp->spp_ipv6_flowlabel = net->tos_flowlabel;
2204 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2205 }
2206 #endif
2207 } else {
2208 /*
2209 * No destination so return default
2210 * value
2211 */
2212 int cnt = 0;
2213
2214 paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2215 paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
2216 #ifdef INET
2217 paddrp->spp_ipv4_tos = stcb->asoc.default_tos & 0x000000fc;
2218 paddrp->spp_flags |= SPP_IPV4_TOS;
2219 #endif
2220 #ifdef INET6
2221 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel;
2222 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2223 #endif
2224 /* default settings should be these */
2225 if (stcb->asoc.hb_is_disabled == 0) {
2226 paddrp->spp_flags |= SPP_HB_ENABLE;
2227 } else {
2228 paddrp->spp_flags |= SPP_HB_DISABLE;
2229 }
2230 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2231 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
2232 cnt++;
2233 }
2234 }
2235 if (cnt) {
2236 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2237 }
2238 }
2239 paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2240 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2241 SCTP_TCB_UNLOCK(stcb);
2242 } else {
2243 /* Use endpoint defaults */
2244 SCTP_INP_RLOCK(inp);
2245 paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2246 paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2247 paddrp->spp_assoc_id = (sctp_assoc_t) 0;
2248 /* get inp's default */
2249 #ifdef INET
2250 paddrp->spp_ipv4_tos = inp->ip_inp.inp.inp_ip_tos;
2251 paddrp->spp_flags |= SPP_IPV4_TOS;
2252 #endif
2253 #ifdef INET6
2254 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2255 paddrp->spp_ipv6_flowlabel = ((struct in6pcb *)inp)->in6p_flowinfo;
2256 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2257 }
2258 #endif
2259 /* can't return this */
2260 paddrp->spp_pathmtu = 0;
2261
2262 /* default behavior, no stcb */
2263 paddrp->spp_flags = SPP_PMTUD_ENABLE;
2264
2265 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2266 paddrp->spp_flags |= SPP_HB_ENABLE;
2267 } else {
2268 paddrp->spp_flags |= SPP_HB_DISABLE;
2269 }
2270 SCTP_INP_RUNLOCK(inp);
2271 }
2272 *optsize = sizeof(struct sctp_paddrparams);
2273 }
2274 break;
2275 case SCTP_GET_PEER_ADDR_INFO:
2276 {
2277 struct sctp_paddrinfo *paddri;
2278 struct sctp_nets *net;
2279
2280 SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2281 SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2282
2283 net = NULL;
2284 if (stcb) {
2285 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
2286 } else {
2287 /*
2288 * We increment here since
2289 * sctp_findassociation_ep_addr() wil do a
2290 * decrement if it finds the stcb as long as
2291 * the locked tcb (last argument) is NOT a
2292 * TCB.. aka NULL.
2293 */
2294 SCTP_INP_INCR_REF(inp);
2295 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
2296 if (stcb == NULL) {
2297 SCTP_INP_DECR_REF(inp);
2298 }
2299 }
2300
2301 if ((stcb) && (net)) {
2302 paddri->spinfo_state = net->dest_state & (SCTP_REACHABLE_MASK | SCTP_ADDR_NOHB);
2303 paddri->spinfo_cwnd = net->cwnd;
2304 paddri->spinfo_srtt = ((net->lastsa >> 2) + net->lastsv) >> 1;
2305 paddri->spinfo_rto = net->RTO;
2306 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2307 SCTP_TCB_UNLOCK(stcb);
2308 } else {
2309 if (stcb) {
2310 SCTP_TCB_UNLOCK(stcb);
2311 }
2312 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2313 error = ENOENT;
2314 }
2315 *optsize = sizeof(struct sctp_paddrinfo);
2316 }
2317 break;
2318 case SCTP_PCB_STATUS:
2319 {
2320 struct sctp_pcbinfo *spcb;
2321
2322 SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2323 sctp_fill_pcbinfo(spcb);
2324 *optsize = sizeof(struct sctp_pcbinfo);
2325 }
2326 break;
2327
2328 case SCTP_STATUS:
2329 {
2330 struct sctp_nets *net;
2331 struct sctp_status *sstat;
2332
2333 SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2334 SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2335
2336 if (stcb == NULL) {
2337 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2338 error = EINVAL;
2339 break;
2340 }
2341 /*
2342 * I think passing the state is fine since
2343 * sctp_constants.h will be available to the user
2344 * land.
2345 */
2346 sstat->sstat_state = stcb->asoc.state;
2347 sstat->sstat_assoc_id = sctp_get_associd(stcb);
2348 sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2349 sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2350 /*
2351 * We can't include chunks that have been passed to
2352 * the socket layer. Only things in queue.
2353 */
2354 sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2355 stcb->asoc.cnt_on_all_streams);
2356
2357
2358 sstat->sstat_instrms = stcb->asoc.streamincnt;
2359 sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2360 sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2361 memcpy(&sstat->sstat_primary.spinfo_address,
2362 &stcb->asoc.primary_destination->ro._l_addr,
2363 ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2364 net = stcb->asoc.primary_destination;
2365 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2366 /*
2367 * Again the user can get info from sctp_constants.h
2368 * for what the state of the network is.
2369 */
2370 sstat->sstat_primary.spinfo_state = net->dest_state & SCTP_REACHABLE_MASK;
2371 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2372 sstat->sstat_primary.spinfo_srtt = net->lastsa;
2373 sstat->sstat_primary.spinfo_rto = net->RTO;
2374 sstat->sstat_primary.spinfo_mtu = net->mtu;
2375 sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2376 SCTP_TCB_UNLOCK(stcb);
2377 *optsize = sizeof(*sstat);
2378 }
2379 break;
2380 case SCTP_RTOINFO:
2381 {
2382 struct sctp_rtoinfo *srto;
2383
2384 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2385 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2386
2387 if (stcb) {
2388 srto->srto_initial = stcb->asoc.initial_rto;
2389 srto->srto_max = stcb->asoc.maxrto;
2390 srto->srto_min = stcb->asoc.minrto;
2391 SCTP_TCB_UNLOCK(stcb);
2392 } else {
2393 SCTP_INP_RLOCK(inp);
2394 srto->srto_initial = inp->sctp_ep.initial_rto;
2395 srto->srto_max = inp->sctp_ep.sctp_maxrto;
2396 srto->srto_min = inp->sctp_ep.sctp_minrto;
2397 SCTP_INP_RUNLOCK(inp);
2398 }
2399 *optsize = sizeof(*srto);
2400 }
2401 break;
2402 case SCTP_ASSOCINFO:
2403 {
2404 struct sctp_assocparams *sasoc;
2405 uint32_t oldval;
2406
2407 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2408 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2409
2410 if (stcb) {
2411 oldval = sasoc->sasoc_cookie_life;
2412 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2413 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2414 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2415 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2416 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2417 SCTP_TCB_UNLOCK(stcb);
2418 } else {
2419 SCTP_INP_RLOCK(inp);
2420 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2421 sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2422 sasoc->sasoc_number_peer_destinations = 0;
2423 sasoc->sasoc_peer_rwnd = 0;
2424 sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2425 SCTP_INP_RUNLOCK(inp);
2426 }
2427 *optsize = sizeof(*sasoc);
2428 }
2429 break;
2430 case SCTP_DEFAULT_SEND_PARAM:
2431 {
2432 struct sctp_sndrcvinfo *s_info;
2433
2434 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2435 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2436
2437 if (stcb) {
2438 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2439 SCTP_TCB_UNLOCK(stcb);
2440 } else {
2441 SCTP_INP_RLOCK(inp);
2442 memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2443 SCTP_INP_RUNLOCK(inp);
2444 }
2445 *optsize = sizeof(*s_info);
2446 }
2447 break;
2448 case SCTP_INITMSG:
2449 {
2450 struct sctp_initmsg *sinit;
2451
2452 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2453 SCTP_INP_RLOCK(inp);
2454 sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2455 sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2456 sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2457 sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2458 SCTP_INP_RUNLOCK(inp);
2459 *optsize = sizeof(*sinit);
2460 }
2461 break;
2462 case SCTP_PRIMARY_ADDR:
2463 /* we allow a "get" operation on this */
2464 {
2465 struct sctp_setprim *ssp;
2466
2467 SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2468 SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2469
2470 if (stcb) {
2471 /* simply copy out the sockaddr_storage... */
2472 int len;
2473
2474 len = *optsize;
2475 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
2476 len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
2477
2478 memcpy(&ssp->ssp_addr,
2479 &stcb->asoc.primary_destination->ro._l_addr,
2480 len);
2481 SCTP_TCB_UNLOCK(stcb);
2482 } else {
2483 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2484 error = EINVAL;
2485 }
2486 *optsize = sizeof(*ssp);
2487 }
2488 break;
2489
2490 case SCTP_HMAC_IDENT:
2491 {
2492 struct sctp_hmacalgo *shmac;
2493 sctp_hmaclist_t *hmaclist;
2494 uint32_t size;
2495 int i;
2496
2497 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2498
2499 SCTP_INP_RLOCK(inp);
2500 hmaclist = inp->sctp_ep.local_hmacs;
2501 if (hmaclist == NULL) {
2502 /* no HMACs to return */
2503 *optsize = sizeof(*shmac);
2504 SCTP_INP_RUNLOCK(inp);
2505 break;
2506 }
2507 /* is there room for all of the hmac ids? */
2508 size = sizeof(*shmac) + (hmaclist->num_algo *
2509 sizeof(shmac->shmac_idents[0]));
2510 if ((size_t)(*optsize) < size) {
2511 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2512 error = EINVAL;
2513 SCTP_INP_RUNLOCK(inp);
2514 break;
2515 }
2516 /* copy in the list */
2517 shmac->shmac_number_of_idents = hmaclist->num_algo;
2518 for (i = 0; i < hmaclist->num_algo; i++) {
2519 shmac->shmac_idents[i] = hmaclist->hmac[i];
2520 }
2521 SCTP_INP_RUNLOCK(inp);
2522 *optsize = size;
2523 break;
2524 }
2525 case SCTP_AUTH_ACTIVE_KEY:
2526 {
2527 struct sctp_authkeyid *scact;
2528
2529 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2530 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2531
2532 if (stcb) {
2533 /* get the active key on the assoc */
2534 scact->scact_keynumber = stcb->asoc.authinfo.assoc_keyid;
2535 SCTP_TCB_UNLOCK(stcb);
2536 } else {
2537 /* get the endpoint active key */
2538 SCTP_INP_RLOCK(inp);
2539 scact->scact_keynumber = inp->sctp_ep.default_keyid;
2540 SCTP_INP_RUNLOCK(inp);
2541 }
2542 *optsize = sizeof(*scact);
2543 break;
2544 }
2545 case SCTP_LOCAL_AUTH_CHUNKS:
2546 {
2547 struct sctp_authchunks *sac;
2548 sctp_auth_chklist_t *chklist = NULL;
2549 size_t size = 0;
2550
2551 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2552 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2553
2554 if (stcb) {
2555 /* get off the assoc */
2556 chklist = stcb->asoc.local_auth_chunks;
2557 /* is there enough space? */
2558 size = sctp_auth_get_chklist_size(chklist);
2559 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2560 error = EINVAL;
2561 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2562 } else {
2563 /* copy in the chunks */
2564 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2565 }
2566 SCTP_TCB_UNLOCK(stcb);
2567 } else {
2568 /* get off the endpoint */
2569 SCTP_INP_RLOCK(inp);
2570 chklist = inp->sctp_ep.local_auth_chunks;
2571 /* is there enough space? */
2572 size = sctp_auth_get_chklist_size(chklist);
2573 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2574 error = EINVAL;
2575 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2576 } else {
2577 /* copy in the chunks */
2578 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2579 }
2580 SCTP_INP_RUNLOCK(inp);
2581 }
2582 *optsize = sizeof(struct sctp_authchunks) + size;
2583 break;
2584 }
2585 case SCTP_PEER_AUTH_CHUNKS:
2586 {
2587 struct sctp_authchunks *sac;
2588 sctp_auth_chklist_t *chklist = NULL;
2589 size_t size = 0;
2590
2591 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2592 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2593
2594 if (stcb) {
2595 /* get off the assoc */
2596 chklist = stcb->asoc.peer_auth_chunks;
2597 /* is there enough space? */
2598 size = sctp_auth_get_chklist_size(chklist);
2599 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2600 error = EINVAL;
2601 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2602 } else {
2603 /* copy in the chunks */
2604 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2605 }
2606 SCTP_TCB_UNLOCK(stcb);
2607 } else {
2608 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2609 error = ENOENT;
2610 }
2611 *optsize = sizeof(struct sctp_authchunks) + size;
2612 break;
2613 }
2614
2615
2616 default:
2617 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
2618 error = ENOPROTOOPT;
2619 *optsize = 0;
2620 break;
2621 } /* end switch (sopt->sopt_name) */
2622 return (error);
2623 }
2624
2625 static int
2626 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
2627 void *p)
2628 {
2629 int error, set_opt;
2630 uint32_t *mopt;
2631 struct sctp_tcb *stcb = NULL;
2632 struct sctp_inpcb *inp = NULL;
2633 uint32_t vrf_id;
2634
2635 if (optval == NULL) {
2636 SCTP_PRINTF("optval is NULL\n");
2637 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2638 return (EINVAL);
2639 }
2640 inp = (struct sctp_inpcb *)so->so_pcb;
2641 if (inp == 0) {
2642 SCTP_PRINTF("inp is NULL?\n");
2643 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2644 return EINVAL;
2645 }
2646 vrf_id = inp->def_vrf_id;
2647
2648 error = 0;
2649 switch (optname) {
2650 case SCTP_NODELAY:
2651 case SCTP_AUTOCLOSE:
2652 case SCTP_AUTO_ASCONF:
2653 case SCTP_EXPLICIT_EOR:
2654 case SCTP_DISABLE_FRAGMENTS:
2655 case SCTP_USE_EXT_RCVINFO:
2656 case SCTP_I_WANT_MAPPED_V4_ADDR:
2657 /* copy in the option value */
2658 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
2659 set_opt = 0;
2660 if (error)
2661 break;
2662 switch (optname) {
2663 case SCTP_DISABLE_FRAGMENTS:
2664 set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
2665 break;
2666 case SCTP_AUTO_ASCONF:
2667 /*
2668 * NOTE: we don't really support this flag
2669 */
2670 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
2671 /* only valid for bound all sockets */
2672 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
2673 } else {
2674 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2675 return (EINVAL);
2676 }
2677 break;
2678 case SCTP_EXPLICIT_EOR:
2679 set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
2680 break;
2681 case SCTP_USE_EXT_RCVINFO:
2682 set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
2683 break;
2684 case SCTP_I_WANT_MAPPED_V4_ADDR:
2685 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2686 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
2687 } else {
2688 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2689 return (EINVAL);
2690 }
2691 break;
2692 case SCTP_NODELAY:
2693 set_opt = SCTP_PCB_FLAGS_NODELAY;
2694 break;
2695 case SCTP_AUTOCLOSE:
2696 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2697 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
2698 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2699 return (EINVAL);
2700 }
2701 set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
2702 /*
2703 * The value is in ticks. Note this does not effect
2704 * old associations, only new ones.
2705 */
2706 inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
2707 break;
2708 }
2709 SCTP_INP_WLOCK(inp);
2710 if (*mopt != 0) {
2711 sctp_feature_on(inp, set_opt);
2712 } else {
2713 sctp_feature_off(inp, set_opt);
2714 }
2715 SCTP_INP_WUNLOCK(inp);
2716 break;
2717 case SCTP_REUSE_PORT:
2718 {
2719 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
2720 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
2721 /* Can't set it after we are bound */
2722 error = EINVAL;
2723 break;
2724 }
2725 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
2726 /* Can't do this for a 1-m socket */
2727 error = EINVAL;
2728 break;
2729 }
2730 if (optval)
2731 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
2732 else
2733 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
2734 }
2735 break;
2736 case SCTP_PARTIAL_DELIVERY_POINT:
2737 {
2738 uint32_t *value;
2739
2740 SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
2741 if (*value > SCTP_SB_LIMIT_RCV(so)) {
2742 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2743 error = EINVAL;
2744 break;
2745 }
2746 inp->partial_delivery_point = *value;
2747 }
2748 break;
2749 case SCTP_FRAGMENT_INTERLEAVE:
2750 /* not yet until we re-write sctp_recvmsg() */
2751 {
2752 uint32_t *level;
2753
2754 SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
2755 if (*level == SCTP_FRAG_LEVEL_2) {
2756 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
2757 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
2758 } else if (*level == SCTP_FRAG_LEVEL_1) {
2759 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
2760 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
2761 } else if (*level == SCTP_FRAG_LEVEL_0) {
2762 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
2763 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
2764
2765 } else {
2766 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2767 error = EINVAL;
2768 }
2769 }
2770 break;
2771 case SCTP_CMT_ON_OFF:
2772 {
2773 struct sctp_assoc_value *av;
2774
2775 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
2776 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
2777 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2778 if (stcb) {
2779 stcb->asoc.sctp_cmt_on_off = (uint8_t) av->assoc_value;
2780 SCTP_TCB_UNLOCK(stcb);
2781 } else {
2782 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2783 error = ENOTCONN;
2784 }
2785 } else {
2786 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
2787 error = ENOPROTOOPT;
2788 }
2789 }
2790 break;
2791 /* JRS - Set socket option for pluggable congestion control */
2792 case SCTP_PLUGGABLE_CC:
2793 {
2794 struct sctp_assoc_value *av;
2795
2796 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
2797 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2798 if (stcb) {
2799 switch (av->assoc_value) {
2800 /*
2801 * JRS - Standard TCP congestion
2802 * control
2803 */
2804 case SCTP_CC_RFC2581:
2805 {
2806 stcb->asoc.congestion_control_module = SCTP_CC_RFC2581;
2807 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param;
2808 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_cwnd_update_after_sack;
2809 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_cwnd_update_after_fr;
2810 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout;
2811 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo;
2812 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped;
2813 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output;
2814 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer;
2815 SCTP_TCB_UNLOCK(stcb);
2816 break;
2817 }
2818 /*
2819 * JRS - High Speed TCP congestion
2820 * control (Floyd)
2821 */
2822 case SCTP_CC_HSTCP:
2823 {
2824 stcb->asoc.congestion_control_module = SCTP_CC_HSTCP;
2825 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param;
2826 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_hs_cwnd_update_after_sack;
2827 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_hs_cwnd_update_after_fr;
2828 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout;
2829 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo;
2830 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped;
2831 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output;
2832 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer;
2833 SCTP_TCB_UNLOCK(stcb);
2834 break;
2835 }
2836 /* JRS - HTCP congestion control */
2837 case SCTP_CC_HTCP:
2838 {
2839 stcb->asoc.congestion_control_module = SCTP_CC_HTCP;
2840 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_htcp_set_initial_cc_param;
2841 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_htcp_cwnd_update_after_sack;
2842 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_htcp_cwnd_update_after_fr;
2843 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_htcp_cwnd_update_after_timeout;
2844 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_htcp_cwnd_update_after_ecn_echo;
2845 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped;
2846 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output;
2847 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_htcp_cwnd_update_after_fr_timer;
2848 SCTP_TCB_UNLOCK(stcb);
2849 break;
2850 }
2851 /*
2852 * JRS - All other values are
2853 * invalid
2854 */
2855 default:
2856 {
2857 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2858 error = EINVAL;
2859 SCTP_TCB_UNLOCK(stcb);
2860 break;
2861 }
2862 }
2863 } else {
2864 switch (av->assoc_value) {
2865 case SCTP_CC_RFC2581:
2866 case SCTP_CC_HSTCP:
2867 case SCTP_CC_HTCP:
2868 inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
2869 break;
2870 default:
2871 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2872 error = EINVAL;
2873 break;
2874 };
2875 }
2876 }
2877 break;
2878 case SCTP_CLR_STAT_LOG:
2879 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2880 error = EOPNOTSUPP;
2881 break;
2882 case SCTP_CONTEXT:
2883 {
2884 struct sctp_assoc_value *av;
2885
2886 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
2887 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2888
2889 if (stcb) {
2890 stcb->asoc.context = av->assoc_value;
2891 SCTP_TCB_UNLOCK(stcb);
2892 } else {
2893 SCTP_INP_WLOCK(inp);
2894 inp->sctp_context = av->assoc_value;
2895 SCTP_INP_WUNLOCK(inp);
2896 }
2897 }
2898 break;
2899 case SCTP_VRF_ID:
2900 {
2901 uint32_t *default_vrfid;
2902
2903 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
2904 if (*default_vrfid > SCTP_MAX_VRF_ID) {
2905 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2906 error = EINVAL;
2907 break;
2908 }
2909 inp->def_vrf_id = *default_vrfid;
2910 break;
2911 }
2912 case SCTP_DEL_VRF_ID:
2913 {
2914 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2915 error = EOPNOTSUPP;
2916 break;
2917 }
2918 case SCTP_ADD_VRF_ID:
2919 {
2920 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2921 error = EOPNOTSUPP;
2922 break;
2923 }
2924 case SCTP_DELAYED_SACK:
2925 {
2926 struct sctp_sack_info *sack;
2927
2928 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
2929 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2930 if (sack->sack_delay) {
2931 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
2932 sack->sack_delay = SCTP_MAX_SACK_DELAY;
2933 }
2934 if (stcb) {
2935 if (sack->sack_delay) {
2936 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
2937 sack->sack_delay = TICKS_TO_MSEC(1);
2938 }
2939 stcb->asoc.delayed_ack = sack->sack_delay;
2940 }
2941 if (sack->sack_freq) {
2942 stcb->asoc.sack_freq = sack->sack_freq;
2943 }
2944 SCTP_TCB_UNLOCK(stcb);
2945 } else {
2946 SCTP_INP_WLOCK(inp);
2947 if (sack->sack_delay) {
2948 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
2949 sack->sack_delay = TICKS_TO_MSEC(1);
2950 }
2951 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
2952 }
2953 if (sack->sack_freq) {
2954 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
2955 }
2956 SCTP_INP_WUNLOCK(inp);
2957 }
2958 break;
2959 }
2960 case SCTP_AUTH_CHUNK:
2961 {
2962 struct sctp_authchunk *sauth;
2963
2964 SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
2965
2966 SCTP_INP_WLOCK(inp);
2967 if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
2968 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2969 error = EINVAL;
2970 }
2971 SCTP_INP_WUNLOCK(inp);
2972 break;
2973 }
2974 case SCTP_AUTH_KEY:
2975 {
2976 struct sctp_authkey *sca;
2977 struct sctp_keyhead *shared_keys;
2978 sctp_sharedkey_t *shared_key;
2979 sctp_key_t *key = NULL;
2980 size_t size;
2981
2982 SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
2983 SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
2984 size = optsize - sizeof(*sca);
2985
2986 if (stcb) {
2987 /* set it on the assoc */
2988 shared_keys = &stcb->asoc.shared_keys;
2989 /* clear the cached keys for this key id */
2990 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
2991 /*
2992 * create the new shared key and
2993 * insert/replace it
2994 */
2995 if (size > 0) {
2996 key = sctp_set_key(sca->sca_key, (uint32_t) size);
2997 if (key == NULL) {
2998 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
2999 error = ENOMEM;
3000 SCTP_TCB_UNLOCK(stcb);
3001 break;
3002 }
3003 }
3004 shared_key = sctp_alloc_sharedkey();
3005 if (shared_key == NULL) {
3006 sctp_free_key(key);
3007 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3008 error = ENOMEM;
3009 SCTP_TCB_UNLOCK(stcb);
3010 break;
3011 }
3012 shared_key->key = key;
3013 shared_key->keyid = sca->sca_keynumber;
3014 sctp_insert_sharedkey(shared_keys, shared_key);
3015 SCTP_TCB_UNLOCK(stcb);
3016 } else {
3017 /* set it on the endpoint */
3018 SCTP_INP_WLOCK(inp);
3019 shared_keys = &inp->sctp_ep.shared_keys;
3020 /*
3021 * clear the cached keys on all assocs for
3022 * this key id
3023 */
3024 sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
3025 /*
3026 * create the new shared key and
3027 * insert/replace it
3028 */
3029 if (size > 0) {
3030 key = sctp_set_key(sca->sca_key, (uint32_t) size);
3031 if (key == NULL) {
3032 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3033 error = ENOMEM;
3034 SCTP_INP_WUNLOCK(inp);
3035 break;
3036 }
3037 }
3038 shared_key = sctp_alloc_sharedkey();
3039 if (shared_key == NULL) {
3040 sctp_free_key(key);
3041 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3042 error = ENOMEM;
3043 SCTP_INP_WUNLOCK(inp);
3044 break;
3045 }
3046 shared_key->key = key;
3047 shared_key->keyid = sca->sca_keynumber;
3048 sctp_insert_sharedkey(shared_keys, shared_key);
3049 SCTP_INP_WUNLOCK(inp);
3050 }
3051 break;
3052 }
3053 case SCTP_HMAC_IDENT:
3054 {
3055 struct sctp_hmacalgo *shmac;
3056 sctp_hmaclist_t *hmaclist;
3057 uint16_t hmacid;
3058 uint32_t i;
3059
3060 size_t found;
3061
3062 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
3063 if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) {
3064 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3065 error = EINVAL;
3066 break;
3067 }
3068 hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents);
3069 if (hmaclist == NULL) {
3070 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3071 error = ENOMEM;
3072 break;
3073 }
3074 for (i = 0; i < shmac->shmac_number_of_idents; i++) {
3075 hmacid = shmac->shmac_idents[i];
3076 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
3077 /* invalid HMACs were found */ ;
3078 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3079 error = EINVAL;
3080 sctp_free_hmaclist(hmaclist);
3081 goto sctp_set_hmac_done;
3082 }
3083 }
3084 found = 0;
3085 for (i = 0; i < hmaclist->num_algo; i++) {
3086 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
3087 /* already in list */
3088 found = 1;
3089 }
3090 }
3091 if (!found) {
3092 sctp_free_hmaclist(hmaclist);
3093 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3094 error = EINVAL;
3095 break;
3096 }
3097 /* set it on the endpoint */
3098 SCTP_INP_WLOCK(inp);
3099 if (inp->sctp_ep.local_hmacs)
3100 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
3101 inp->sctp_ep.local_hmacs = hmaclist;
3102 SCTP_INP_WUNLOCK(inp);
3103 sctp_set_hmac_done:
3104 break;
3105 }
3106 case SCTP_AUTH_ACTIVE_KEY:
3107 {
3108 struct sctp_authkeyid *scact;
3109
3110 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
3111 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
3112
3113 /* set the active key on the right place */
3114 if (stcb) {
3115 /* set the active key on the assoc */
3116 if (sctp_auth_setactivekey(stcb, scact->scact_keynumber)) {
3117 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3118 error = EINVAL;
3119 }
3120 SCTP_TCB_UNLOCK(stcb);
3121 } else {
3122 /* set the active key on the endpoint */
3123 SCTP_INP_WLOCK(inp);
3124 if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
3125 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3126 error = EINVAL;
3127 }
3128 SCTP_INP_WUNLOCK(inp);
3129 }
3130 break;
3131 }
3132 case SCTP_AUTH_DELETE_KEY:
3133 {
3134 struct sctp_authkeyid *scdel;
3135
3136 SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
3137 SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
3138
3139 /* delete the key from the right place */
3140 if (stcb) {
3141 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
3142 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3143 error = EINVAL;
3144 }
3145 SCTP_TCB_UNLOCK(stcb);
3146 } else {
3147 SCTP_INP_WLOCK(inp);
3148 if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
3149 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3150 error = EINVAL;
3151 }
3152 SCTP_INP_WUNLOCK(inp);
3153 }
3154 break;
3155 }
3156
3157 case SCTP_RESET_STREAMS:
3158 {
3159 struct sctp_stream_reset *strrst;
3160 uint8_t send_in = 0, send_tsn = 0, send_out = 0;
3161 int i;
3162
3163 SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize);
3164 SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id);
3165
3166 if (stcb == NULL) {
3167 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3168 error = ENOENT;
3169 break;
3170 }
3171 if (stcb->asoc.peer_supports_strreset == 0) {
3172 /*
3173 * Peer does not support it, we return
3174 * protocol not supported since this is true
3175 * for this feature and this peer, not the
3176 * socket request in general.
3177 */
3178 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT);
3179 error = EPROTONOSUPPORT;
3180 SCTP_TCB_UNLOCK(stcb);
3181 break;
3182 }
3183 if (stcb->asoc.stream_reset_outstanding) {
3184 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
3185 error = EALREADY;
3186 SCTP_TCB_UNLOCK(stcb);
3187 break;
3188 }
3189 if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) {
3190 send_in = 1;
3191 } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) {
3192 send_out = 1;
3193 } else if (strrst->strrst_flags == SCTP_RESET_BOTH) {
3194 send_in = 1;
3195 send_out = 1;
3196 } else if (strrst->strrst_flags == SCTP_RESET_TSN) {
3197 send_tsn = 1;
3198 } else {
3199 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3200 error = EINVAL;
3201 SCTP_TCB_UNLOCK(stcb);
3202 break;
3203 }
3204 for (i = 0; i < strrst->strrst_num_streams; i++) {
3205 if ((send_in) &&
3206
3207 (strrst->strrst_list[i] > stcb->asoc.streamincnt)) {
3208 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3209 error = EINVAL;
3210 goto get_out;
3211 }
3212 if ((send_out) &&
3213 (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) {
3214 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3215 error = EINVAL;
3216 goto get_out;
3217 }
3218 }
3219 if (error) {
3220 get_out:
3221 SCTP_TCB_UNLOCK(stcb);
3222 break;
3223 }
3224 error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams,
3225 strrst->strrst_list,
3226 send_out, (stcb->asoc.str_reset_seq_in - 3),
3227 send_in, send_tsn);
3228
3229 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
3230 SCTP_TCB_UNLOCK(stcb);
3231 }
3232 break;
3233
3234 case SCTP_CONNECT_X:
3235 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
3236 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3237 error = EINVAL;
3238 break;
3239 }
3240 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
3241 break;
3242
3243 case SCTP_CONNECT_X_DELAYED:
3244 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
3245 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3246 error = EINVAL;
3247 break;
3248 }
3249 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
3250 break;
3251
3252 case SCTP_CONNECT_X_COMPLETE:
3253 {
3254 struct sockaddr *sa;
3255 struct sctp_nets *net;
3256
3257 /* FIXME MT: check correct? */
3258 SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
3259
3260 /* find tcb */
3261 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
3262 SCTP_INP_RLOCK(inp);
3263 stcb = LIST_FIRST(&inp->sctp_asoc_list);
3264 if (stcb) {
3265 SCTP_TCB_LOCK(stcb);
3266 net = sctp_findnet(stcb, sa);
3267 }
3268 SCTP_INP_RUNLOCK(inp);
3269 } else {
3270 /*
3271 * We increment here since
3272 * sctp_findassociation_ep_addr() wil do a
3273 * decrement if it finds the stcb as long as
3274 * the locked tcb (last argument) is NOT a
3275 * TCB.. aka NULL.
3276 */
3277 SCTP_INP_INCR_REF(inp);
3278 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
3279 if (stcb == NULL) {
3280 SCTP_INP_DECR_REF(inp);
3281 }
3282 }
3283
3284 if (stcb == NULL) {
3285 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3286 error = ENOENT;
3287 break;
3288 }
3289 if (stcb->asoc.delayed_connection == 1) {
3290 stcb->asoc.delayed_connection = 0;
3291 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
3292 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
3293 stcb->asoc.primary_destination,
3294 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
3295 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
3296 } else {
3297 /*
3298 * already expired or did not use delayed
3299 * connectx
3300 */
3301 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
3302 error = EALREADY;
3303 }
3304 SCTP_TCB_UNLOCK(stcb);
3305 }
3306 break;
3307 case SCTP_MAX_BURST:
3308 {
3309 uint8_t *burst;
3310
3311 SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize);
3312
3313 SCTP_INP_WLOCK(inp);
3314 if (*burst) {
3315 inp->sctp_ep.max_burst = *burst;
3316 }
3317 SCTP_INP_WUNLOCK(inp);
3318 }
3319 break;
3320 case SCTP_MAXSEG:
3321 {
3322 struct sctp_assoc_value *av;
3323 int ovh;
3324
3325 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3326 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3327
3328 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3329 ovh = SCTP_MED_OVERHEAD;
3330 } else {
3331 ovh = SCTP_MED_V4_OVERHEAD;
3332 }
3333 if (stcb) {
3334 if (av->assoc_value) {
3335 stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
3336 } else {
3337 stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
3338 }
3339 SCTP_TCB_UNLOCK(stcb);
3340 } else {
3341 SCTP_INP_WLOCK(inp);
3342 /*
3343 * FIXME MT: I think this is not in tune
3344 * with the API ID
3345 */
3346 if (av->assoc_value) {
3347 inp->sctp_frag_point = (av->assoc_value + ovh);
3348 } else {
3349 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
3350 }
3351 SCTP_INP_WUNLOCK(inp);
3352 }
3353 }
3354 break;
3355 case SCTP_EVENTS:
3356 {
3357 struct sctp_event_subscribe *events;
3358
3359 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
3360
3361 SCTP_INP_WLOCK(inp);
3362 if (events->sctp_data_io_event) {
3363 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
3364 } else {
3365 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
3366 }
3367
3368 if (events->sctp_association_event) {
3369 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
3370 } else {
3371 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
3372 }
3373
3374 if (events->sctp_address_event) {
3375 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
3376 } else {
3377 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
3378 }
3379
3380 if (events->sctp_send_failure_event) {
3381 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
3382 } else {
3383 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
3384 }
3385
3386 if (events->sctp_peer_error_event) {
3387 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
3388 } else {
3389 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
3390 }
3391
3392 if (events->sctp_shutdown_event) {
3393 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
3394 } else {
3395 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
3396 }
3397
3398 if (events->sctp_partial_delivery_event) {
3399 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
3400 } else {
3401 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
3402 }
3403
3404 if (events->sctp_adaptation_layer_event) {
3405 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
3406 } else {
3407 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
3408 }
3409
3410 if (events->sctp_authentication_event) {
3411 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
3412 } else {
3413 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
3414 }
3415
3416 if (events->sctp_stream_reset_events) {
3417 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
3418 } else {
3419 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
3420 }
3421 SCTP_INP_WUNLOCK(inp);
3422 }
3423 break;
3424
3425 case SCTP_ADAPTATION_LAYER:
3426 {
3427 struct sctp_setadaptation *adap_bits;
3428
3429 SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
3430 SCTP_INP_WLOCK(inp);
3431 inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
3432 SCTP_INP_WUNLOCK(inp);
3433 }
3434 break;
3435 #ifdef SCTP_DEBUG
3436 case SCTP_SET_INITIAL_DBG_SEQ:
3437 {
3438 uint32_t *vvv;
3439
3440 SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
3441 SCTP_INP_WLOCK(inp);
3442 inp->sctp_ep.initial_sequence_debug = *vvv;
3443 SCTP_INP_WUNLOCK(inp);
3444 }
3445 break;
3446 #endif
3447 case SCTP_DEFAULT_SEND_PARAM:
3448 {
3449 struct sctp_sndrcvinfo *s_info;
3450
3451 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
3452 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
3453
3454 if (stcb) {
3455 if (s_info->sinfo_stream <= stcb->asoc.streamoutcnt) {
3456 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
3457 } else {
3458 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3459 error = EINVAL;
3460 }
3461 SCTP_TCB_UNLOCK(stcb);
3462 } else {
3463 SCTP_INP_WLOCK(inp);
3464 memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
3465 SCTP_INP_WUNLOCK(inp);
3466 }
3467 }
3468 break;
3469 case SCTP_PEER_ADDR_PARAMS:
3470 /* Applys to the specific association */
3471 {
3472 struct sctp_paddrparams *paddrp;
3473 struct sctp_nets *net;
3474
3475 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
3476 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
3477 net = NULL;
3478 if (stcb) {
3479 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
3480 } else {
3481 /*
3482 * We increment here since
3483 * sctp_findassociation_ep_addr() wil do a
3484 * decrement if it finds the stcb as long as
3485 * the locked tcb (last argument) is NOT a
3486 * TCB.. aka NULL.
3487 */
3488 SCTP_INP_INCR_REF(inp);
3489 stcb = sctp_findassociation_ep_addr(&inp,
3490 (struct sockaddr *)&paddrp->spp_address,
3491 &net, NULL, NULL);
3492 if (stcb == NULL) {
3493 SCTP_INP_DECR_REF(inp);
3494 }
3495 }
3496 if (stcb && (net == NULL)) {
3497 struct sockaddr *sa;
3498
3499 sa = (struct sockaddr *)&paddrp->spp_address;
3500 if (sa->sa_family == AF_INET) {
3501 struct sockaddr_in *sin;
3502
3503 sin = (struct sockaddr_in *)sa;
3504 if (sin->sin_addr.s_addr) {
3505 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3506 SCTP_TCB_UNLOCK(stcb);
3507 error = EINVAL;
3508 break;
3509 }
3510 } else if (sa->sa_family == AF_INET6) {
3511 struct sockaddr_in6 *sin6;
3512
3513 sin6 = (struct sockaddr_in6 *)sa;
3514 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3515 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3516 SCTP_TCB_UNLOCK(stcb);
3517 error = EINVAL;
3518 break;
3519 }
3520 } else {
3521 error = EAFNOSUPPORT;
3522 SCTP_TCB_UNLOCK(stcb);
3523 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3524 break;
3525 }
3526 }
3527 /* sanity checks */
3528 if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
3529 if (stcb)
3530 SCTP_TCB_UNLOCK(stcb);
3531 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3532 return (EINVAL);
3533 }
3534 if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
3535 if (stcb)
3536 SCTP_TCB_UNLOCK(stcb);
3537 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3538 return (EINVAL);
3539 }
3540 if (stcb) {
3541 /************************TCB SPECIFIC SET ******************/
3542 /*
3543 * do we change the timer for HB, we run
3544 * only one?
3545 */
3546 int ovh = 0;
3547
3548 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3549 ovh = SCTP_MED_OVERHEAD;
3550 } else {
3551 ovh = SCTP_MED_V4_OVERHEAD;
3552 }
3553
3554 if (paddrp->spp_hbinterval)
3555 stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
3556 else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
3557 stcb->asoc.heart_beat_delay = 0;
3558
3559 /* network sets ? */
3560 if (net) {
3561 /************************NET SPECIFIC SET ******************/
3562 if (paddrp->spp_flags & SPP_HB_DEMAND) {
3563 /* on demand HB */
3564 if (sctp_send_hb(stcb, 1, net) < 0) {
3565 /* asoc destroyed */
3566 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3567 error = EINVAL;
3568 break;
3569 }
3570 }
3571 if (paddrp->spp_flags & SPP_HB_DISABLE) {
3572 net->dest_state |= SCTP_ADDR_NOHB;
3573 }
3574 if (paddrp->spp_flags & SPP_HB_ENABLE) {
3575 net->dest_state &= ~SCTP_ADDR_NOHB;
3576 }
3577 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
3578 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
3579 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
3580 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
3581 }
3582 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
3583 net->mtu = paddrp->spp_pathmtu + ovh;
3584 if (net->mtu < stcb->asoc.smallest_mtu) {
3585 #ifdef SCTP_PRINT_FOR_B_AND_M
3586 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n",
3587 net->mtu);
3588 #endif
3589 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu);
3590 }
3591 }
3592 }
3593 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
3594 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
3595 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
3596 }
3597 }
3598 if (paddrp->spp_pathmaxrxt)
3599 net->failure_threshold = paddrp->spp_pathmaxrxt;
3600 #ifdef INET
3601 if (paddrp->spp_flags & SPP_IPV4_TOS) {
3602 if (net->ro._l_addr.sin.sin_family == AF_INET) {
3603 net->tos_flowlabel = paddrp->spp_ipv4_tos & 0x000000fc;
3604 }
3605 }
3606 #endif
3607 #ifdef INET6
3608 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
3609 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) {
3610 net->tos_flowlabel = paddrp->spp_ipv6_flowlabel;
3611 }
3612 }
3613 #endif
3614 } else {
3615 /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
3616 if (paddrp->spp_pathmaxrxt)
3617 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
3618
3619 if (paddrp->spp_flags & SPP_HB_ENABLE) {
3620 /* Turn back on the timer */
3621 stcb->asoc.hb_is_disabled = 0;
3622 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
3623 }
3624 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
3625 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3626 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
3627 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
3628 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
3629 }
3630 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
3631 net->mtu = paddrp->spp_pathmtu + ovh;
3632 if (net->mtu < stcb->asoc.smallest_mtu) {
3633 #ifdef SCTP_PRINT_FOR_B_AND_M
3634 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n",
3635 net->mtu);
3636 #endif
3637 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu);
3638 }
3639 }
3640 }
3641 }
3642 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
3643 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3644 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
3645 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
3646 }
3647 }
3648 }
3649 if (paddrp->spp_flags & SPP_HB_DISABLE) {
3650 int cnt_of_unconf = 0;
3651 struct sctp_nets *lnet;
3652
3653 stcb->asoc.hb_is_disabled = 1;
3654 TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) {
3655 if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) {
3656 cnt_of_unconf++;
3657 }
3658 }
3659 /*
3660 * stop the timer ONLY if we
3661 * have no unconfirmed
3662 * addresses
3663 */
3664 if (cnt_of_unconf == 0) {
3665 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3666 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
3667 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
3668 }
3669 }
3670 }
3671 if (paddrp->spp_flags & SPP_HB_ENABLE) {
3672 /* start up the timer. */
3673 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3674 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
3675 }
3676 }
3677 #ifdef INET
3678 if (paddrp->spp_flags & SPP_IPV4_TOS)
3679 stcb->asoc.default_tos = paddrp->spp_ipv4_tos & 0x000000fc;
3680 #endif
3681 #ifdef INET6
3682 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL)
3683 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel;
3684 #endif
3685
3686 }
3687 SCTP_TCB_UNLOCK(stcb);
3688 } else {
3689 /************************NO TCB, SET TO default stuff ******************/
3690 SCTP_INP_WLOCK(inp);
3691 /*
3692 * For the TOS/FLOWLABEL stuff you set it
3693 * with the options on the socket
3694 */
3695 if (paddrp->spp_pathmaxrxt) {
3696 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
3697 }
3698 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
3699 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
3700 else if (paddrp->spp_hbinterval) {
3701 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
3702 paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
3703 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
3704 }
3705 if (paddrp->spp_flags & SPP_HB_ENABLE) {
3706 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
3707
3708 } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
3709 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
3710 }
3711 SCTP_INP_WUNLOCK(inp);
3712 }
3713 }
3714 break;
3715 case SCTP_RTOINFO:
3716 {
3717 struct sctp_rtoinfo *srto;
3718 uint32_t new_init, new_min, new_max;
3719
3720 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
3721 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
3722
3723 if (stcb) {
3724 if (srto->srto_initial)
3725 new_init = srto->srto_initial;
3726 else
3727 new_init = stcb->asoc.initial_rto;
3728 if (srto->srto_max)
3729 new_max = srto->srto_max;
3730 else
3731 new_max = stcb->asoc.maxrto;
3732 if (srto->srto_min)
3733 new_min = srto->srto_min;
3734 else
3735 new_min = stcb->asoc.minrto;
3736 if ((new_min <= new_init) && (new_init <= new_max)) {
3737 stcb->asoc.initial_rto = new_init;
3738 stcb->asoc.maxrto = new_max;
3739 stcb->asoc.minrto = new_min;
3740 } else {
3741 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3742 error = EINVAL;
3743 }
3744 SCTP_TCB_UNLOCK(stcb);
3745 } else {
3746 SCTP_INP_WLOCK(inp);
3747 if (srto->srto_initial)
3748 new_init = srto->srto_initial;
3749 else
3750 new_init = inp->sctp_ep.initial_rto;
3751 if (srto->srto_max)
3752 new_max = srto->srto_max;
3753 else
3754 new_max = inp->sctp_ep.sctp_maxrto;
3755 if (srto->srto_min)
3756 new_min = srto->srto_min;
3757 else
3758 new_min = inp->sctp_ep.sctp_minrto;
3759 if ((new_min <= new_init) && (new_init <= new_max)) {
3760 inp->sctp_ep.initial_rto = new_init;
3761 inp->sctp_ep.sctp_maxrto = new_max;
3762 inp->sctp_ep.sctp_minrto = new_min;
3763 } else {
3764 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3765 error = EINVAL;
3766 }
3767 SCTP_INP_WUNLOCK(inp);
3768 }
3769 }
3770 break;
3771 case SCTP_ASSOCINFO:
3772 {
3773 struct sctp_assocparams *sasoc;
3774
3775 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
3776 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
3777 if (sasoc->sasoc_cookie_life) {
3778 /* boundary check the cookie life */
3779 if (sasoc->sasoc_cookie_life < 1000)
3780 sasoc->sasoc_cookie_life = 1000;
3781 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
3782 sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
3783 }
3784 }
3785 if (stcb) {
3786 if (sasoc->sasoc_asocmaxrxt)
3787 stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
3788 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
3789 sasoc->sasoc_peer_rwnd = 0;
3790 sasoc->sasoc_local_rwnd = 0;
3791 if (sasoc->sasoc_cookie_life) {
3792 stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
3793 }
3794 SCTP_TCB_UNLOCK(stcb);
3795 } else {
3796 SCTP_INP_WLOCK(inp);
3797 if (sasoc->sasoc_asocmaxrxt)
3798 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
3799 sasoc->sasoc_number_peer_destinations = 0;
3800 sasoc->sasoc_peer_rwnd = 0;
3801 sasoc->sasoc_local_rwnd = 0;
3802 if (sasoc->sasoc_cookie_life) {
3803 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
3804 }
3805 SCTP_INP_WUNLOCK(inp);
3806 }
3807 }
3808 break;
3809 case SCTP_INITMSG:
3810 {
3811 struct sctp_initmsg *sinit;
3812
3813 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
3814 SCTP_INP_WLOCK(inp);
3815 if (sinit->sinit_num_ostreams)
3816 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
3817
3818 if (sinit->sinit_max_instreams)
3819 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
3820
3821 if (sinit->sinit_max_attempts)
3822 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
3823
3824 if (sinit->sinit_max_init_timeo)
3825 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
3826 SCTP_INP_WUNLOCK(inp);
3827 }
3828 break;
3829 case SCTP_PRIMARY_ADDR:
3830 {
3831 struct sctp_setprim *spa;
3832 struct sctp_nets *net, *lnet;
3833
3834 SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
3835 SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
3836
3837 net = NULL;
3838 if (stcb) {
3839 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr);
3840 } else {
3841 /*
3842 * We increment here since
3843 * sctp_findassociation_ep_addr() wil do a
3844 * decrement if it finds the stcb as long as
3845 * the locked tcb (last argument) is NOT a
3846 * TCB.. aka NULL.
3847 */
3848 SCTP_INP_INCR_REF(inp);
3849 stcb = sctp_findassociation_ep_addr(&inp,
3850 (struct sockaddr *)&spa->ssp_addr,
3851 &net, NULL, NULL);
3852 if (stcb == NULL) {
3853 SCTP_INP_DECR_REF(inp);
3854 }
3855 }
3856
3857 if ((stcb) && (net)) {
3858 if ((net != stcb->asoc.primary_destination) &&
3859 (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
3860 /* Ok we need to set it */
3861 lnet = stcb->asoc.primary_destination;
3862 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
3863 if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) {
3864 net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH;
3865 }
3866 net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY;
3867 }
3868 }
3869 } else {
3870 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3871 error = EINVAL;
3872 }
3873 if (stcb) {
3874 SCTP_TCB_UNLOCK(stcb);
3875 }
3876 }
3877 break;
3878 case SCTP_SET_DYNAMIC_PRIMARY:
3879 {
3880 union sctp_sockstore *ss;
3881
3882 error = priv_check(curthread,
3883 PRIV_NETINET_RESERVEDPORT);
3884 if (error)
3885 break;
3886
3887 SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
3888 /* SUPER USER CHECK? */
3889 error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
3890 }
3891 break;
3892 case SCTP_SET_PEER_PRIMARY_ADDR:
3893 {
3894 struct sctp_setpeerprim *sspp;
3895
3896 SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
3897 SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
3898 if (stcb != NULL) {
3899 struct sctp_ifa *ifa;
3900
3901 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr,
3902 stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
3903 if (ifa == NULL) {
3904 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3905 error = EINVAL;
3906 goto out_of_it;
3907 }
3908 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
3909 /*
3910 * Must validate the ifa found is in
3911 * our ep
3912 */
3913 struct sctp_laddr *laddr;
3914 int found = 0;
3915
3916 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
3917 if (laddr->ifa == NULL) {
3918 SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
3919 __FUNCTION__);
3920 continue;
3921 }
3922 if (laddr->ifa == ifa) {
3923 found = 1;
3924 break;
3925 }
3926 }
3927 if (!found) {
3928 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3929 error = EINVAL;
3930 goto out_of_it;
3931 }
3932 }
3933 if (sctp_set_primary_ip_address_sa(stcb,
3934 (struct sockaddr *)&sspp->sspp_addr) != 0) {
3935 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3936 error = EINVAL;
3937 }
3938 out_of_it:
3939 SCTP_TCB_UNLOCK(stcb);
3940 } else {
3941 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3942 error = EINVAL;
3943 }
3944
3945 }
3946 break;
3947 case SCTP_BINDX_ADD_ADDR:
3948 {
3949 struct sctp_getaddresses *addrs;
3950 size_t sz;
3951 struct thread *td;
3952 int prison = 0;
3953
3954 td = (struct thread *)p;
3955 if (jailed(td->td_ucred)) {
3956 prison = 1;
3957 }
3958 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
3959 optsize);
3960 if (addrs->addr->sa_family == AF_INET) {
3961 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
3962 if (optsize < sz) {
3963 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3964 error = EINVAL;
3965 break;
3966 }
3967 if (prison && prison_ip(td->td_ucred, 0, &(((struct sockaddr_in *)(addrs->addr))->sin_addr.s_addr))) {
3968 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRNOTAVAIL);
3969 error = EADDRNOTAVAIL;
3970 }
3971 } else if (addrs->addr->sa_family == AF_INET6) {
3972 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
3973 if (optsize < sz) {
3974 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3975 error = EINVAL;
3976 break;
3977 }
3978 /* JAIL XXXX Add else here for V6 */
3979 }
3980 sctp_bindx_add_address(so, inp, addrs->addr,
3981 addrs->sget_assoc_id, vrf_id,
3982 &error, p);
3983 }
3984 break;
3985 case SCTP_BINDX_REM_ADDR:
3986 {
3987 struct sctp_getaddresses *addrs;
3988 size_t sz;
3989 struct thread *td;
3990 int prison = 0;
3991
3992 td = (struct thread *)p;
3993 if (jailed(td->td_ucred)) {
3994 prison = 1;
3995 }
3996 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
3997 if (addrs->addr->sa_family == AF_INET) {
3998 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
3999 if (optsize < sz) {
4000 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4001 error = EINVAL;
4002 break;
4003 }
4004 if (prison && prison_ip(td->td_ucred, 0, &(((struct sockaddr_in *)(addrs->addr))->sin_addr.s_addr))) {
4005 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRNOTAVAIL);
4006 error = EADDRNOTAVAIL;
4007 }
4008 } else if (addrs->addr->sa_family == AF_INET6) {
4009 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
4010 if (optsize < sz) {
4011 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4012 error = EINVAL;
4013 break;
4014 }
4015 /* JAIL XXXX Add else here for V6 */
4016 }
4017 sctp_bindx_delete_address(so, inp, addrs->addr,
4018 addrs->sget_assoc_id, vrf_id,
4019 &error);
4020 }
4021 break;
4022 default:
4023 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
4024 error = ENOPROTOOPT;
4025 break;
4026 } /* end switch (opt) */
4027 return (error);
4028 }
4029
4030 int
4031 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
4032 {
4033 void *optval = NULL;
4034 size_t optsize = 0;
4035 struct sctp_inpcb *inp;
4036 void *p;
4037 int error = 0;
4038
4039 inp = (struct sctp_inpcb *)so->so_pcb;
4040 if (inp == 0) {
4041 /* I made the same as TCP since we are not setup? */
4042 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4043 return (ECONNRESET);
4044 }
4045 if (sopt->sopt_level != IPPROTO_SCTP) {
4046 /* wrong proto level... send back up to IP */
4047 #ifdef INET6
4048 if (INP_CHECK_SOCKAF(so, AF_INET6))
4049 error = ip6_ctloutput(so, sopt);
4050 else
4051 #endif /* INET6 */
4052 error = ip_ctloutput(so, sopt);
4053 return (error);
4054 }
4055 optsize = sopt->sopt_valsize;
4056 if (optsize) {
4057 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
4058 if (optval == NULL) {
4059 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
4060 return (ENOBUFS);
4061 }
4062 error = sooptcopyin(sopt, optval, optsize, optsize);
4063 if (error) {
4064 SCTP_FREE(optval, SCTP_M_SOCKOPT);
4065 goto out;
4066 }
4067 }
4068 p = (void *)sopt->sopt_td;
4069 if (sopt->sopt_dir == SOPT_SET) {
4070 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
4071 } else if (sopt->sopt_dir == SOPT_GET) {
4072 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
4073 } else {
4074 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4075 error = EINVAL;
4076 }
4077 if ((error == 0) && (optval != NULL)) {
4078 error = sooptcopyout(sopt, optval, optsize);
4079 SCTP_FREE(optval, SCTP_M_SOCKOPT);
4080 } else if (optval != NULL) {
4081 SCTP_FREE(optval, SCTP_M_SOCKOPT);
4082 }
4083 out:
4084 return (error);
4085 }
4086
4087
4088 static int
4089 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
4090 {
4091 int error = 0;
4092 int create_lock_on = 0;
4093 uint32_t vrf_id;
4094 struct sctp_inpcb *inp;
4095 struct sctp_tcb *stcb = NULL;
4096
4097 inp = (struct sctp_inpcb *)so->so_pcb;
4098 if (inp == 0) {
4099 /* I made the same as TCP since we are not setup? */
4100 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4101 return (ECONNRESET);
4102 }
4103 if (addr == NULL) {
4104 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4105 return EINVAL;
4106 }
4107 if ((addr->sa_family == AF_INET6) && (addr->sa_len != sizeof(struct sockaddr_in6))) {
4108 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4109 return (EINVAL);
4110 }
4111 if ((addr->sa_family == AF_INET) && (addr->sa_len != sizeof(struct sockaddr_in))) {
4112 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4113 return (EINVAL);
4114 }
4115 SCTP_INP_INCR_REF(inp);
4116 SCTP_ASOC_CREATE_LOCK(inp);
4117 create_lock_on = 1;
4118
4119
4120 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
4121 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
4122 /* Should I really unlock ? */
4123 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
4124 error = EFAULT;
4125 goto out_now;
4126 }
4127 #ifdef INET6
4128 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
4129 (addr->sa_family == AF_INET6)) {
4130 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4131 error = EINVAL;
4132 goto out_now;
4133 }
4134 #endif /* INET6 */
4135 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
4136 SCTP_PCB_FLAGS_UNBOUND) {
4137 /* Bind a ephemeral port */
4138 error = sctp_inpcb_bind(so, NULL, NULL, p);
4139 if (error) {
4140 goto out_now;
4141 }
4142 }
4143 /* Now do we connect? */
4144 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
4145 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
4146 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4147 error = EINVAL;
4148 goto out_now;
4149 }
4150 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
4151 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
4152 /* We are already connected AND the TCP model */
4153 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
4154 error = EADDRINUSE;
4155 goto out_now;
4156 }
4157 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4158 SCTP_INP_RLOCK(inp);
4159 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4160 SCTP_INP_RUNLOCK(inp);
4161 } else {
4162 /*
4163 * We increment here since sctp_findassociation_ep_addr()
4164 * will do a decrement if it finds the stcb as long as the
4165 * locked tcb (last argument) is NOT a TCB.. aka NULL.
4166 */
4167 SCTP_INP_INCR_REF(inp);
4168 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
4169 if (stcb == NULL) {
4170 SCTP_INP_DECR_REF(inp);
4171 } else {
4172 SCTP_TCB_UNLOCK(stcb);
4173 }
4174 }
4175 if (stcb != NULL) {
4176 /* Already have or am bring up an association */
4177 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4178 error = EALREADY;
4179 goto out_now;
4180 }
4181 vrf_id = inp->def_vrf_id;
4182 /* We are GOOD to go */
4183 stcb = sctp_aloc_assoc(inp, addr, 1, &error, 0, vrf_id, p);
4184 if (stcb == NULL) {
4185 /* Gak! no memory */
4186 goto out_now;
4187 }
4188 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
4189 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
4190 /* Set the connected flag so we can queue data */
4191 soisconnecting(so);
4192 }
4193 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
4194 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4195
4196 /* initialize authentication parameters for the assoc */
4197 sctp_initialize_auth_params(inp, stcb);
4198
4199 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4200 SCTP_TCB_UNLOCK(stcb);
4201 out_now:
4202 if (create_lock_on) {
4203 SCTP_ASOC_CREATE_UNLOCK(inp);
4204 }
4205 SCTP_INP_DECR_REF(inp);
4206 return error;
4207 }
4208
4209 int
4210 sctp_listen(struct socket *so, int backlog, struct thread *p)
4211 {
4212 /*
4213 * Note this module depends on the protocol processing being called
4214 * AFTER any socket level flags and backlog are applied to the
4215 * socket. The traditional way that the socket flags are applied is
4216 * AFTER protocol processing. We have made a change to the
4217 * sys/kern/uipc_socket.c module to reverse this but this MUST be in
4218 * place if the socket API for SCTP is to work properly.
4219 */
4220
4221 int error = 0;
4222 struct sctp_inpcb *inp;
4223
4224 inp = (struct sctp_inpcb *)so->so_pcb;
4225 if (inp == 0) {
4226 /* I made the same as TCP since we are not setup? */
4227 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4228 return (ECONNRESET);
4229 }
4230 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
4231 /* See if we have a listener */
4232 struct sctp_inpcb *tinp;
4233 union sctp_sockstore store, *sp;
4234
4235 sp = &store;
4236 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
4237 /* not bound all */
4238 struct sctp_laddr *laddr;
4239
4240 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
4241 memcpy(&store, &laddr->ifa->address, sizeof(store));
4242 sp->sin.sin_port = inp->sctp_lport;
4243 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
4244 if (tinp && (tinp != inp) &&
4245 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
4246 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
4247 (tinp->sctp_socket->so_qlimit)) {
4248 /*
4249 * we have a listener already and
4250 * its not this inp.
4251 */
4252 SCTP_INP_DECR_REF(tinp);
4253 return (EADDRINUSE);
4254 } else if (tinp) {
4255 SCTP_INP_DECR_REF(tinp);
4256 }
4257 }
4258 } else {
4259 /* Setup a local addr bound all */
4260 memset(&store, 0, sizeof(store));
4261 store.sin.sin_port = inp->sctp_lport;
4262 #ifdef INET6
4263 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4264 store.sa.sa_family = AF_INET6;
4265 store.sa.sa_len = sizeof(struct sockaddr_in6);
4266 }
4267 #endif
4268 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
4269 store.sa.sa_family = AF_INET;
4270 store.sa.sa_len = sizeof(struct sockaddr_in);
4271 }
4272 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
4273 if (tinp && (tinp != inp) &&
4274 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
4275 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
4276 (tinp->sctp_socket->so_qlimit)) {
4277 /*
4278 * we have a listener already and its not
4279 * this inp.
4280 */
4281 SCTP_INP_DECR_REF(tinp);
4282 return (EADDRINUSE);
4283 } else if (tinp) {
4284 SCTP_INP_DECR_REF(inp);
4285 }
4286 }
4287 }
4288 SCTP_INP_RLOCK(inp);
4289 #ifdef SCTP_LOCK_LOGGING
4290 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
4291 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
4292 }
4293 #endif
4294 SOCK_LOCK(so);
4295 error = solisten_proto_check(so);
4296 if (error) {
4297 SOCK_UNLOCK(so);
4298 SCTP_INP_RUNLOCK(inp);
4299 return (error);
4300 }
4301 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
4302 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
4303 /*
4304 * The unlucky case - We are in the tcp pool with this guy.
4305 * - Someone else is in the main inp slot. - We must move
4306 * this guy (the listener) to the main slot - We must then
4307 * move the guy that was listener to the TCP Pool.
4308 */
4309 if (sctp_swap_inpcb_for_listen(inp)) {
4310 goto in_use;
4311 }
4312 }
4313 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
4314 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
4315 /* We are already connected AND the TCP model */
4316 in_use:
4317 SCTP_INP_RUNLOCK(inp);
4318 SOCK_UNLOCK(so);
4319 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
4320 return (EADDRINUSE);
4321 }
4322 SCTP_INP_RUNLOCK(inp);
4323 if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
4324 /* We must do a bind. */
4325 SOCK_UNLOCK(so);
4326 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
4327 /* bind error, probably perm */
4328 return (error);
4329 }
4330 SOCK_LOCK(so);
4331 }
4332 /* It appears for 7.0 and on, we must always call this. */
4333 solisten_proto(so, backlog);
4334 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
4335 /* remove the ACCEPTCONN flag for one-to-many sockets */
4336 so->so_options &= ~SO_ACCEPTCONN;
4337 }
4338 if (backlog == 0) {
4339 /* turning off listen */
4340 so->so_options &= ~SO_ACCEPTCONN;
4341 }
4342 SOCK_UNLOCK(so);
4343 return (error);
4344 }
4345
4346 static int sctp_defered_wakeup_cnt = 0;
4347
4348 int
4349 sctp_accept(struct socket *so, struct sockaddr **addr)
4350 {
4351 struct sctp_tcb *stcb;
4352 struct sctp_inpcb *inp;
4353 union sctp_sockstore store;
4354
4355 #ifdef INET6
4356 int error;
4357
4358 #endif
4359 inp = (struct sctp_inpcb *)so->so_pcb;
4360
4361 if (inp == 0) {
4362 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4363 return (ECONNRESET);
4364 }
4365 SCTP_INP_RLOCK(inp);
4366 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
4367 SCTP_INP_RUNLOCK(inp);
4368 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4369 return (EOPNOTSUPP);
4370 }
4371 if (so->so_state & SS_ISDISCONNECTED) {
4372 SCTP_INP_RUNLOCK(inp);
4373 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
4374 return (ECONNABORTED);
4375 }
4376 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4377 if (stcb == NULL) {
4378 SCTP_INP_RUNLOCK(inp);
4379 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4380 return (ECONNRESET);
4381 }
4382 SCTP_TCB_LOCK(stcb);
4383 SCTP_INP_RUNLOCK(inp);
4384 store = stcb->asoc.primary_destination->ro._l_addr;
4385 SCTP_TCB_UNLOCK(stcb);
4386 switch (store.sa.sa_family) {
4387 case AF_INET:
4388 {
4389 struct sockaddr_in *sin;
4390
4391 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
4392 sin->sin_family = AF_INET;
4393 sin->sin_len = sizeof(*sin);
4394 sin->sin_port = ((struct sockaddr_in *)&store)->sin_port;
4395 sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr;
4396 *addr = (struct sockaddr *)sin;
4397 break;
4398 }
4399 #ifdef INET6
4400 case AF_INET6:
4401 {
4402 struct sockaddr_in6 *sin6;
4403
4404 SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
4405 sin6->sin6_family = AF_INET6;
4406 sin6->sin6_len = sizeof(*sin6);
4407 sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port;
4408
4409 sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr;
4410 if ((error = sa6_recoverscope(sin6)) != 0) {
4411 SCTP_FREE_SONAME(sin6);
4412 return (error);
4413 }
4414 *addr = (struct sockaddr *)sin6;
4415 break;
4416 }
4417 #endif
4418 default:
4419 /* TSNH */
4420 break;
4421 }
4422 /* Wake any delayed sleep action */
4423 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
4424 SCTP_INP_WLOCK(inp);
4425 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
4426 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
4427 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
4428 SCTP_INP_WUNLOCK(inp);
4429 SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
4430 if (sowriteable(inp->sctp_socket)) {
4431 sowwakeup_locked(inp->sctp_socket);
4432 } else {
4433 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
4434 }
4435 SCTP_INP_WLOCK(inp);
4436 }
4437 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
4438 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
4439 SCTP_INP_WUNLOCK(inp);
4440 SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
4441 if (soreadable(inp->sctp_socket)) {
4442 sctp_defered_wakeup_cnt++;
4443 sorwakeup_locked(inp->sctp_socket);
4444 } else {
4445 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
4446 }
4447 SCTP_INP_WLOCK(inp);
4448 }
4449 SCTP_INP_WUNLOCK(inp);
4450 }
4451 return (0);
4452 }
4453
4454 int
4455 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
4456 {
4457 struct sockaddr_in *sin;
4458 uint32_t vrf_id;
4459 struct sctp_inpcb *inp;
4460 struct sctp_ifa *sctp_ifa;
4461
4462 /*
4463 * Do the malloc first in case it blocks.
4464 */
4465 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
4466 sin->sin_family = AF_INET;
4467 sin->sin_len = sizeof(*sin);
4468 inp = (struct sctp_inpcb *)so->so_pcb;
4469 if (!inp) {
4470 SCTP_FREE_SONAME(sin);
4471 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4472 return ECONNRESET;
4473 }
4474 SCTP_INP_RLOCK(inp);
4475 sin->sin_port = inp->sctp_lport;
4476 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
4477 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4478 struct sctp_tcb *stcb;
4479 struct sockaddr_in *sin_a;
4480 struct sctp_nets *net;
4481 int fnd;
4482
4483 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4484 if (stcb == NULL) {
4485 goto notConn;
4486 }
4487 fnd = 0;
4488 sin_a = NULL;
4489 SCTP_TCB_LOCK(stcb);
4490 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4491 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
4492 if (sin_a == NULL)
4493 /* this will make coverity happy */
4494 continue;
4495
4496 if (sin_a->sin_family == AF_INET) {
4497 fnd = 1;
4498 break;
4499 }
4500 }
4501 if ((!fnd) || (sin_a == NULL)) {
4502 /* punt */
4503 SCTP_TCB_UNLOCK(stcb);
4504 goto notConn;
4505 }
4506 vrf_id = inp->def_vrf_id;
4507 sctp_ifa = sctp_source_address_selection(inp,
4508 stcb,
4509 (sctp_route_t *) & net->ro,
4510 net, 0, vrf_id);
4511 if (sctp_ifa) {
4512 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
4513 sctp_free_ifa(sctp_ifa);
4514 }
4515 SCTP_TCB_UNLOCK(stcb);
4516 } else {
4517 /* For the bound all case you get back 0 */
4518 notConn:
4519 sin->sin_addr.s_addr = 0;
4520 }
4521
4522 } else {
4523 /* Take the first IPv4 address in the list */
4524 struct sctp_laddr *laddr;
4525 int fnd = 0;
4526
4527 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
4528 if (laddr->ifa->address.sa.sa_family == AF_INET) {
4529 struct sockaddr_in *sin_a;
4530
4531 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa;
4532 sin->sin_addr = sin_a->sin_addr;
4533 fnd = 1;
4534 break;
4535 }
4536 }
4537 if (!fnd) {
4538 SCTP_FREE_SONAME(sin);
4539 SCTP_INP_RUNLOCK(inp);
4540 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4541 return ENOENT;
4542 }
4543 }
4544 SCTP_INP_RUNLOCK(inp);
4545 (*addr) = (struct sockaddr *)sin;
4546 return (0);
4547 }
4548
4549 int
4550 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
4551 {
4552 struct sockaddr_in *sin = (struct sockaddr_in *)*addr;
4553 int fnd;
4554 struct sockaddr_in *sin_a;
4555 struct sctp_inpcb *inp;
4556 struct sctp_tcb *stcb;
4557 struct sctp_nets *net;
4558
4559 /* Do the malloc first in case it blocks. */
4560 inp = (struct sctp_inpcb *)so->so_pcb;
4561 if ((inp == NULL) ||
4562 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
4563 /* UDP type and listeners will drop out here */
4564 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
4565 return (ENOTCONN);
4566 }
4567 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
4568 sin->sin_family = AF_INET;
4569 sin->sin_len = sizeof(*sin);
4570
4571 /* We must recapture incase we blocked */
4572 inp = (struct sctp_inpcb *)so->so_pcb;
4573 if (!inp) {
4574 SCTP_FREE_SONAME(sin);
4575 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4576 return ECONNRESET;
4577 }
4578 SCTP_INP_RLOCK(inp);
4579 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4580 if (stcb) {
4581 SCTP_TCB_LOCK(stcb);
4582 }
4583 SCTP_INP_RUNLOCK(inp);
4584 if (stcb == NULL) {
4585 SCTP_FREE_SONAME(sin);
4586 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4587 return ECONNRESET;
4588 }
4589 fnd = 0;
4590 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4591 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
4592 if (sin_a->sin_family == AF_INET) {
4593 fnd = 1;
4594 sin->sin_port = stcb->rport;
4595 sin->sin_addr = sin_a->sin_addr;
4596 break;
4597 }
4598 }
4599 SCTP_TCB_UNLOCK(stcb);
4600 if (!fnd) {
4601 /* No IPv4 address */
4602 SCTP_FREE_SONAME(sin);
4603 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4604 return ENOENT;
4605 }
4606 (*addr) = (struct sockaddr *)sin;
4607 return (0);
4608 }
4609
4610 struct pr_usrreqs sctp_usrreqs = {
4611 .pru_abort = sctp_abort,
4612 .pru_accept = sctp_accept,
4613 .pru_attach = sctp_attach,
4614 .pru_bind = sctp_bind,
4615 .pru_connect = sctp_connect,
4616 .pru_control = in_control,
4617 .pru_close = sctp_close,
4618 .pru_detach = sctp_close,
4619 .pru_sopoll = sopoll_generic,
4620 .pru_flush = sctp_flush,
4621 .pru_disconnect = sctp_disconnect,
4622 .pru_listen = sctp_listen,
4623 .pru_peeraddr = sctp_peeraddr,
4624 .pru_send = sctp_sendm,
4625 .pru_shutdown = sctp_shutdown,
4626 .pru_sockaddr = sctp_ingetaddr,
4627 .pru_sosend = sctp_sosend,
4628 .pru_soreceive = sctp_soreceive
4629 };
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