1 /*-
2 * Copyright (c) 2001-2008, 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: releng/7.4/sys/netinet/sctp_usrreq.c 202712 2010-01-20 18:55:40Z tuexen $");
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 #include <netinet/udp.h>
53
54
55
56
57 void
58 sctp_init(void)
59 {
60 u_long sb_max_adj;
61
62 bzero(&SCTP_BASE_STATS, sizeof(struct sctpstat));
63
64 /* Initialize and modify the sysctled variables */
65 sctp_init_sysctls();
66 if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
67 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
68 /*
69 * Allow a user to take no more than 1/2 the number of clusters or
70 * the SB_MAX whichever is smaller for the send window.
71 */
72 sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
73 SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
74 (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
75 /*
76 * Now for the recv window, should we take the same amount? or
77 * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
78 * now I will just copy.
79 */
80 SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
81
82 SCTP_BASE_VAR(first_time) = 0;
83 SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
84 sctp_pcb_init();
85 #if defined(SCTP_PACKET_LOGGING)
86 SCTP_BASE_VAR(packet_log_writers) = 0;
87 SCTP_BASE_VAR(packet_log_end) = 0;
88 bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
89 #endif
90
91
92 }
93
94 void
95 sctp_finish(void)
96 {
97 sctp_pcb_finish();
98 }
99
100
101
102 void
103 sctp_pathmtu_adjustment(struct sctp_inpcb *inp,
104 struct sctp_tcb *stcb,
105 struct sctp_nets *net,
106 uint16_t nxtsz)
107 {
108 struct sctp_tmit_chunk *chk;
109
110 /* Adjust that too */
111 stcb->asoc.smallest_mtu = nxtsz;
112 /* now off to subtract IP_DF flag if needed */
113 #ifdef SCTP_PRINT_FOR_B_AND_M
114 SCTP_PRINTF("sctp_pathmtu_adjust called inp:%p stcb:%p net:%p nxtsz:%d\n",
115 inp, stcb, net, nxtsz);
116 #endif
117 TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
118 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) {
119 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
120 }
121 }
122 TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
123 if ((chk->send_size + IP_HDR_SIZE) > nxtsz) {
124 /*
125 * For this guy we also mark for immediate resend
126 * since we sent to big of chunk
127 */
128 chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
129 if (chk->sent != SCTP_DATAGRAM_RESEND) {
130 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
131 }
132 chk->sent = SCTP_DATAGRAM_RESEND;
133 chk->rec.data.doing_fast_retransmit = 0;
134 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
135 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
136 chk->whoTo->flight_size,
137 chk->book_size,
138 (uintptr_t) chk->whoTo,
139 chk->rec.data.TSN_seq);
140 }
141 /* Clear any time so NO RTT is being done */
142 chk->do_rtt = 0;
143 sctp_flight_size_decrease(chk);
144 sctp_total_flight_decrease(stcb, chk);
145 }
146 }
147 }
148
149 static void
150 sctp_notify_mbuf(struct sctp_inpcb *inp,
151 struct sctp_tcb *stcb,
152 struct sctp_nets *net,
153 struct ip *ip,
154 struct sctphdr *sh)
155 {
156 struct icmp *icmph;
157 int totsz, tmr_stopped = 0;
158 uint16_t nxtsz;
159
160 /* protection */
161 if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
162 (ip == NULL) || (sh == NULL)) {
163 if (stcb != NULL) {
164 SCTP_TCB_UNLOCK(stcb);
165 }
166 return;
167 }
168 /* First job is to verify the vtag matches what I would send */
169 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
170 SCTP_TCB_UNLOCK(stcb);
171 return;
172 }
173 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
174 sizeof(struct ip)));
175 if (icmph->icmp_type != ICMP_UNREACH) {
176 /* We only care about unreachable */
177 SCTP_TCB_UNLOCK(stcb);
178 return;
179 }
180 if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
181 /* not a unreachable message due to frag. */
182 SCTP_TCB_UNLOCK(stcb);
183 return;
184 }
185 totsz = ip->ip_len;
186
187 nxtsz = ntohs(icmph->icmp_nextmtu);
188 if (nxtsz == 0) {
189 /*
190 * old type router that does not tell us what the next size
191 * mtu is. Rats we will have to guess (in a educated fashion
192 * of course)
193 */
194 nxtsz = find_next_best_mtu(totsz);
195 }
196 /* Stop any PMTU timer */
197 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
198 tmr_stopped = 1;
199 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
200 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
201 }
202 /* Adjust destination size limit */
203 if (net->mtu > nxtsz) {
204 net->mtu = nxtsz;
205 if (net->port) {
206 net->mtu -= sizeof(struct udphdr);
207 }
208 }
209 /* now what about the ep? */
210 if (stcb->asoc.smallest_mtu > nxtsz) {
211 #ifdef SCTP_PRINT_FOR_B_AND_M
212 SCTP_PRINTF("notify_mbuf (ICMP) calls sctp_pathmtu_adjust mtu:%d\n",
213 nxtsz);
214 #endif
215 sctp_pathmtu_adjustment(inp, stcb, net, nxtsz);
216 }
217 if (tmr_stopped)
218 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
219
220 SCTP_TCB_UNLOCK(stcb);
221 }
222
223
224 void
225 sctp_notify(struct sctp_inpcb *inp,
226 struct ip *ip,
227 struct sctphdr *sh,
228 struct sockaddr *to,
229 struct sctp_tcb *stcb,
230 struct sctp_nets *net)
231 {
232 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
233 struct socket *so;
234
235 #endif
236 /* protection */
237 int reason;
238 struct icmp *icmph;
239
240
241 if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
242 (sh == NULL) || (to == NULL)) {
243 if (stcb)
244 SCTP_TCB_UNLOCK(stcb);
245 return;
246 }
247 /* First job is to verify the vtag matches what I would send */
248 if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
249 SCTP_TCB_UNLOCK(stcb);
250 return;
251 }
252 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
253 sizeof(struct ip)));
254 if (icmph->icmp_type != ICMP_UNREACH) {
255 /* We only care about unreachable */
256 SCTP_TCB_UNLOCK(stcb);
257 return;
258 }
259 if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
260 (icmph->icmp_code == ICMP_UNREACH_HOST) ||
261 (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
262 (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
263 (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
264 (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
265 (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
266 (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
267
268 /*
269 * Hmm reachablity problems we must examine closely. If its
270 * not reachable, we may have lost a network. Or if there is
271 * NO protocol at the other end named SCTP. well we consider
272 * it a OOTB abort.
273 */
274 if (net->dest_state & SCTP_ADDR_REACHABLE) {
275 /* Ok that destination is NOT reachable */
276 SCTP_PRINTF("ICMP (thresh %d/%d) takes interface %p down\n",
277 net->error_count,
278 net->failure_threshold,
279 net);
280
281 net->dest_state &= ~SCTP_ADDR_REACHABLE;
282 net->dest_state |= SCTP_ADDR_NOT_REACHABLE;
283 /*
284 * JRS 5/14/07 - If a destination is unreachable,
285 * the PF bit is turned off. This allows an
286 * unambiguous use of the PF bit for destinations
287 * that are reachable but potentially failed. If the
288 * destination is set to the unreachable state, also
289 * set the destination to the PF state.
290 */
291 /*
292 * Add debug message here if destination is not in
293 * PF state.
294 */
295 /* Stop any running T3 timers here? */
296 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off) && SCTP_BASE_SYSCTL(sctp_cmt_pf)) {
297 net->dest_state &= ~SCTP_ADDR_PF;
298 SCTPDBG(SCTP_DEBUG_TIMER4, "Destination %p moved from PF to unreachable.\n",
299 net);
300 }
301 net->error_count = net->failure_threshold + 1;
302 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
303 stcb, SCTP_FAILED_THRESHOLD,
304 (void *)net, SCTP_SO_NOT_LOCKED);
305 }
306 SCTP_TCB_UNLOCK(stcb);
307 } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
308 (icmph->icmp_code == ICMP_UNREACH_PORT)) {
309 /*
310 * Here the peer is either playing tricks on us, including
311 * an address that belongs to someone who does not support
312 * SCTP OR was a userland implementation that shutdown and
313 * now is dead. In either case treat it like a OOTB abort
314 * with no TCB
315 */
316 reason = SCTP_PEER_FAULTY;
317 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED);
318 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
319 so = SCTP_INP_SO(inp);
320 atomic_add_int(&stcb->asoc.refcnt, 1);
321 SCTP_TCB_UNLOCK(stcb);
322 SCTP_SOCKET_LOCK(so, 1);
323 SCTP_TCB_LOCK(stcb);
324 atomic_subtract_int(&stcb->asoc.refcnt, 1);
325 #endif
326 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
327 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
328 SCTP_SOCKET_UNLOCK(so, 1);
329 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
330 #endif
331 /* no need to unlock here, since the TCB is gone */
332 } else {
333 SCTP_TCB_UNLOCK(stcb);
334 }
335 }
336
337 void
338 sctp_ctlinput(cmd, sa, vip)
339 int cmd;
340 struct sockaddr *sa;
341 void *vip;
342 {
343 struct ip *ip = vip;
344 struct sctphdr *sh;
345 uint32_t vrf_id;
346
347 /* FIX, for non-bsd is this right? */
348 vrf_id = SCTP_DEFAULT_VRFID;
349 if (sa->sa_family != AF_INET ||
350 ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
351 return;
352 }
353 if (PRC_IS_REDIRECT(cmd)) {
354 ip = 0;
355 } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
356 return;
357 }
358 if (ip) {
359 struct sctp_inpcb *inp = NULL;
360 struct sctp_tcb *stcb = NULL;
361 struct sctp_nets *net = NULL;
362 struct sockaddr_in to, from;
363
364 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
365 bzero(&to, sizeof(to));
366 bzero(&from, sizeof(from));
367 from.sin_family = to.sin_family = AF_INET;
368 from.sin_len = to.sin_len = sizeof(to);
369 from.sin_port = sh->src_port;
370 from.sin_addr = ip->ip_src;
371 to.sin_port = sh->dest_port;
372 to.sin_addr = ip->ip_dst;
373
374 /*
375 * 'to' holds the dest of the packet that failed to be sent.
376 * 'from' holds our local endpoint address. Thus we reverse
377 * the to and the from in the lookup.
378 */
379 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from,
380 (struct sockaddr *)&to,
381 &inp, &net, 1, vrf_id);
382 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
383 if (cmd != PRC_MSGSIZE) {
384 sctp_notify(inp, ip, sh,
385 (struct sockaddr *)&to, stcb,
386 net);
387 } else {
388 /* handle possible ICMP size messages */
389 sctp_notify_mbuf(inp, stcb, net, ip, sh);
390 }
391 } else {
392 if ((stcb == NULL) && (inp != NULL)) {
393 /* reduce ref-count */
394 SCTP_INP_WLOCK(inp);
395 SCTP_INP_DECR_REF(inp);
396 SCTP_INP_WUNLOCK(inp);
397 }
398 }
399 }
400 return;
401 }
402
403 static int
404 sctp_getcred(SYSCTL_HANDLER_ARGS)
405 {
406 struct xucred xuc;
407 struct sockaddr_in addrs[2];
408 struct sctp_inpcb *inp;
409 struct sctp_nets *net;
410 struct sctp_tcb *stcb;
411 int error;
412 uint32_t vrf_id;
413
414 /* FIX, for non-bsd is this right? */
415 vrf_id = SCTP_DEFAULT_VRFID;
416
417 error = priv_check(req->td, PRIV_NETINET_GETCRED);
418
419 if (error)
420 return (error);
421
422 error = SYSCTL_IN(req, addrs, sizeof(addrs));
423 if (error)
424 return (error);
425
426 stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]),
427 sintosa(&addrs[1]),
428 &inp, &net, 1, vrf_id);
429 if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
430 if ((inp != NULL) && (stcb == NULL)) {
431 /* reduce ref-count */
432 SCTP_INP_WLOCK(inp);
433 SCTP_INP_DECR_REF(inp);
434 goto cred_can_cont;
435 }
436 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
437 error = ENOENT;
438 goto out;
439 }
440 SCTP_TCB_UNLOCK(stcb);
441 /*
442 * We use the write lock here, only since in the error leg we need
443 * it. If we used RLOCK, then we would have to
444 * wlock/decr/unlock/rlock. Which in theory could create a hole.
445 * Better to use higher wlock.
446 */
447 SCTP_INP_WLOCK(inp);
448 cred_can_cont:
449 error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
450 if (error) {
451 SCTP_INP_WUNLOCK(inp);
452 goto out;
453 }
454 cru2x(inp->sctp_socket->so_cred, &xuc);
455 SCTP_INP_WUNLOCK(inp);
456 error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
457 out:
458 return (error);
459 }
460
461 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
462 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
463
464
465 static void
466 sctp_abort(struct socket *so)
467 {
468 struct sctp_inpcb *inp;
469 uint32_t flags;
470
471 inp = (struct sctp_inpcb *)so->so_pcb;
472 if (inp == 0) {
473 return;
474 }
475 sctp_must_try_again:
476 flags = inp->sctp_flags;
477 #ifdef SCTP_LOG_CLOSING
478 sctp_log_closing(inp, NULL, 17);
479 #endif
480 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
481 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
482 #ifdef SCTP_LOG_CLOSING
483 sctp_log_closing(inp, NULL, 16);
484 #endif
485 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
486 SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
487 SOCK_LOCK(so);
488 SCTP_SB_CLEAR(so->so_snd);
489 /*
490 * same for the rcv ones, they are only here for the
491 * accounting/select.
492 */
493 SCTP_SB_CLEAR(so->so_rcv);
494
495 /* Now null out the reference, we are completely detached. */
496 so->so_pcb = NULL;
497 SOCK_UNLOCK(so);
498 } else {
499 flags = inp->sctp_flags;
500 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
501 goto sctp_must_try_again;
502 }
503 }
504 return;
505 }
506
507 static int
508 sctp_attach(struct socket *so, int proto, struct thread *p)
509 {
510 struct sctp_inpcb *inp;
511 struct inpcb *ip_inp;
512 int error;
513 uint32_t vrf_id = SCTP_DEFAULT_VRFID;
514
515 #ifdef IPSEC
516 uint32_t flags;
517
518 #endif
519
520 inp = (struct sctp_inpcb *)so->so_pcb;
521 if (inp != 0) {
522 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
523 return EINVAL;
524 }
525 if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
526 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
527 if (error) {
528 return error;
529 }
530 }
531 error = sctp_inpcb_alloc(so, vrf_id);
532 if (error) {
533 return error;
534 }
535 inp = (struct sctp_inpcb *)so->so_pcb;
536 SCTP_INP_WLOCK(inp);
537 inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */
538 ip_inp = &inp->ip_inp.inp;
539 ip_inp->inp_vflag |= INP_IPV4;
540 ip_inp->inp_ip_ttl = MODULE_GLOBAL(MOD_INET, ip_defttl);
541 #ifdef IPSEC
542 error = ipsec_init_policy(so, &ip_inp->inp_sp);
543 #ifdef SCTP_LOG_CLOSING
544 sctp_log_closing(inp, NULL, 17);
545 #endif
546 if (error != 0) {
547 flags = inp->sctp_flags;
548 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
549 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
550 #ifdef SCTP_LOG_CLOSING
551 sctp_log_closing(inp, NULL, 15);
552 #endif
553 SCTP_INP_WUNLOCK(inp);
554 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
555 SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
556 } else {
557 SCTP_INP_WUNLOCK(inp);
558 }
559 return error;
560 }
561 #endif /* IPSEC */
562 SCTP_INP_WUNLOCK(inp);
563 return 0;
564 }
565
566 static int
567 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
568 {
569 struct sctp_inpcb *inp = NULL;
570 int error;
571
572 #ifdef INET6
573 if (addr && addr->sa_family != AF_INET) {
574 /* must be a v4 address! */
575 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
576 return EINVAL;
577 }
578 #endif /* INET6 */
579 if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) {
580 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
581 return EINVAL;
582 }
583 inp = (struct sctp_inpcb *)so->so_pcb;
584 if (inp == 0) {
585 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
586 return EINVAL;
587 }
588 error = sctp_inpcb_bind(so, addr, NULL, p);
589 return error;
590 }
591
592 void
593 sctp_close(struct socket *so)
594 {
595 struct sctp_inpcb *inp;
596 uint32_t flags;
597
598 inp = (struct sctp_inpcb *)so->so_pcb;
599 if (inp == 0)
600 return;
601
602 /*
603 * Inform all the lower layer assoc that we are done.
604 */
605 sctp_must_try_again:
606 flags = inp->sctp_flags;
607 #ifdef SCTP_LOG_CLOSING
608 sctp_log_closing(inp, NULL, 17);
609 #endif
610 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
611 (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
612 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
613 (so->so_rcv.sb_cc > 0)) {
614 #ifdef SCTP_LOG_CLOSING
615 sctp_log_closing(inp, NULL, 13);
616 #endif
617 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
618 SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
619 } else {
620 #ifdef SCTP_LOG_CLOSING
621 sctp_log_closing(inp, NULL, 14);
622 #endif
623 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
624 SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
625 }
626 /*
627 * The socket is now detached, no matter what the state of
628 * the SCTP association.
629 */
630 SOCK_LOCK(so);
631 SCTP_SB_CLEAR(so->so_snd);
632 /*
633 * same for the rcv ones, they are only here for the
634 * accounting/select.
635 */
636 SCTP_SB_CLEAR(so->so_rcv);
637
638 /* Now null out the reference, we are completely detached. */
639 so->so_pcb = NULL;
640 SOCK_UNLOCK(so);
641 } else {
642 flags = inp->sctp_flags;
643 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
644 goto sctp_must_try_again;
645 }
646 }
647 return;
648 }
649
650
651 int
652 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
653 struct mbuf *control, struct thread *p);
654
655
656 int
657 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
658 struct mbuf *control, struct thread *p)
659 {
660 struct sctp_inpcb *inp;
661 int error;
662
663 inp = (struct sctp_inpcb *)so->so_pcb;
664 if (inp == 0) {
665 if (control) {
666 sctp_m_freem(control);
667 control = NULL;
668 }
669 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
670 sctp_m_freem(m);
671 return EINVAL;
672 }
673 /* Got to have an to address if we are NOT a connected socket */
674 if ((addr == NULL) &&
675 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
676 (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))
677 ) {
678 goto connected_type;
679 } else if (addr == NULL) {
680 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
681 error = EDESTADDRREQ;
682 sctp_m_freem(m);
683 if (control) {
684 sctp_m_freem(control);
685 control = NULL;
686 }
687 return (error);
688 }
689 #ifdef INET6
690 if (addr->sa_family != AF_INET) {
691 /* must be a v4 address! */
692 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
693 sctp_m_freem(m);
694 if (control) {
695 sctp_m_freem(control);
696 control = NULL;
697 }
698 error = EDESTADDRREQ;
699 return EDESTADDRREQ;
700 }
701 #endif /* INET6 */
702 connected_type:
703 /* now what about control */
704 if (control) {
705 if (inp->control) {
706 SCTP_PRINTF("huh? control set?\n");
707 sctp_m_freem(inp->control);
708 inp->control = NULL;
709 }
710 inp->control = control;
711 }
712 /* Place the data */
713 if (inp->pkt) {
714 SCTP_BUF_NEXT(inp->pkt_last) = m;
715 inp->pkt_last = m;
716 } else {
717 inp->pkt_last = inp->pkt = m;
718 }
719 if (
720 /* FreeBSD uses a flag passed */
721 ((flags & PRUS_MORETOCOME) == 0)
722 ) {
723 /*
724 * note with the current version this code will only be used
725 * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
726 * re-defining sosend to use the sctp_sosend. One can
727 * optionally switch back to this code (by changing back the
728 * definitions) but this is not advisable. This code is used
729 * by FreeBSD when sending a file with sendfile() though.
730 */
731 int ret;
732
733 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
734 inp->pkt = NULL;
735 inp->control = NULL;
736 return (ret);
737 } else {
738 return (0);
739 }
740 }
741
742 int
743 sctp_disconnect(struct socket *so)
744 {
745 struct sctp_inpcb *inp;
746
747 inp = (struct sctp_inpcb *)so->so_pcb;
748 if (inp == NULL) {
749 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
750 return (ENOTCONN);
751 }
752 SCTP_INP_RLOCK(inp);
753 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
754 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
755 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
756 /* No connection */
757 SCTP_INP_RUNLOCK(inp);
758 return (0);
759 } else {
760 struct sctp_association *asoc;
761 struct sctp_tcb *stcb;
762
763 stcb = LIST_FIRST(&inp->sctp_asoc_list);
764 if (stcb == NULL) {
765 SCTP_INP_RUNLOCK(inp);
766 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
767 return (EINVAL);
768 }
769 SCTP_TCB_LOCK(stcb);
770 asoc = &stcb->asoc;
771 if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
772 /* We are about to be freed, out of here */
773 SCTP_TCB_UNLOCK(stcb);
774 SCTP_INP_RUNLOCK(inp);
775 return (0);
776 }
777 if (((so->so_options & SO_LINGER) &&
778 (so->so_linger == 0)) ||
779 (so->so_rcv.sb_cc > 0)) {
780 if (SCTP_GET_STATE(asoc) !=
781 SCTP_STATE_COOKIE_WAIT) {
782 /* Left with Data unread */
783 struct mbuf *err;
784
785 err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA);
786 if (err) {
787 /*
788 * Fill in the user
789 * initiated abort
790 */
791 struct sctp_paramhdr *ph;
792
793 ph = mtod(err, struct sctp_paramhdr *);
794 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
795 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
796 ph->param_length = htons(SCTP_BUF_LEN(err));
797 }
798 #if defined(SCTP_PANIC_ON_ABORT)
799 panic("disconnect does an abort");
800 #endif
801 sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
802 SCTP_STAT_INCR_COUNTER32(sctps_aborted);
803 }
804 SCTP_INP_RUNLOCK(inp);
805 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
806 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
807 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
808 }
809 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
810 /* No unlock tcb assoc is gone */
811 return (0);
812 }
813 if (TAILQ_EMPTY(&asoc->send_queue) &&
814 TAILQ_EMPTY(&asoc->sent_queue) &&
815 (asoc->stream_queue_cnt == 0)) {
816 /* there is nothing queued to send, so done */
817 if (asoc->locked_on_sending) {
818 goto abort_anyway;
819 }
820 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
821 (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
822 /* only send SHUTDOWN 1st time thru */
823 sctp_stop_timers_for_shutdown(stcb);
824 sctp_send_shutdown(stcb,
825 stcb->asoc.primary_destination);
826 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
827 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
828 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
829 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
830 }
831 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
832 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
833 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
834 stcb->sctp_ep, stcb,
835 asoc->primary_destination);
836 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
837 stcb->sctp_ep, stcb,
838 asoc->primary_destination);
839 }
840 } else {
841 /*
842 * we still got (or just got) data to send,
843 * so set SHUTDOWN_PENDING
844 */
845 /*
846 * XXX sockets draft says that SCTP_EOF
847 * should be sent with no data. currently,
848 * we will allow user data to be sent first
849 * and move to SHUTDOWN-PENDING
850 */
851 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
852 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
853 asoc->primary_destination);
854 if (asoc->locked_on_sending) {
855 /* Locked to send out the data */
856 struct sctp_stream_queue_pending *sp;
857
858 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
859 if (sp == NULL) {
860 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
861 asoc->locked_on_sending->stream_no);
862 } else {
863 if ((sp->length == 0) && (sp->msg_is_complete == 0))
864 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
865 }
866 }
867 if (TAILQ_EMPTY(&asoc->send_queue) &&
868 TAILQ_EMPTY(&asoc->sent_queue) &&
869 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
870 struct mbuf *op_err;
871
872 abort_anyway:
873 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
874 0, M_DONTWAIT, 1, MT_DATA);
875 if (op_err) {
876 /*
877 * Fill in the user
878 * initiated abort
879 */
880 struct sctp_paramhdr *ph;
881 uint32_t *ippp;
882
883 SCTP_BUF_LEN(op_err) =
884 (sizeof(struct sctp_paramhdr) + sizeof(uint32_t));
885 ph = mtod(op_err,
886 struct sctp_paramhdr *);
887 ph->param_type = htons(
888 SCTP_CAUSE_USER_INITIATED_ABT);
889 ph->param_length = htons(SCTP_BUF_LEN(op_err));
890 ippp = (uint32_t *) (ph + 1);
891 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4);
892 }
893 #if defined(SCTP_PANIC_ON_ABORT)
894 panic("disconnect does an abort");
895 #endif
896
897 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
898 sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
899 SCTP_STAT_INCR_COUNTER32(sctps_aborted);
900 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
901 (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
902 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
903 }
904 SCTP_INP_RUNLOCK(inp);
905 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
906 return (0);
907 } else {
908 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
909 }
910 }
911 SCTP_TCB_UNLOCK(stcb);
912 SCTP_INP_RUNLOCK(inp);
913 return (0);
914 }
915 /* not reached */
916 } else {
917 /* UDP model does not support this */
918 SCTP_INP_RUNLOCK(inp);
919 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
920 return EOPNOTSUPP;
921 }
922 }
923
924 int
925 sctp_flush(struct socket *so, int how)
926 {
927 /*
928 * We will just clear out the values and let subsequent close clear
929 * out the data, if any. Note if the user did a shutdown(SHUT_RD)
930 * they will not be able to read the data, the socket will block
931 * that from happening.
932 */
933 if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
934 /*
935 * First make sure the sb will be happy, we don't use these
936 * except maybe the count
937 */
938 so->so_rcv.sb_cc = 0;
939 so->so_rcv.sb_mbcnt = 0;
940 so->so_rcv.sb_mb = NULL;
941 }
942 if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
943 /*
944 * First make sure the sb will be happy, we don't use these
945 * except maybe the count
946 */
947 so->so_snd.sb_cc = 0;
948 so->so_snd.sb_mbcnt = 0;
949 so->so_snd.sb_mb = NULL;
950
951 }
952 return (0);
953 }
954
955 int
956 sctp_shutdown(struct socket *so)
957 {
958 struct sctp_inpcb *inp;
959
960 inp = (struct sctp_inpcb *)so->so_pcb;
961 if (inp == 0) {
962 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
963 return EINVAL;
964 }
965 SCTP_INP_RLOCK(inp);
966 /* For UDP model this is a invalid call */
967 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
968 /* Restore the flags that the soshutdown took away. */
969 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
970 /* This proc will wakeup for read and do nothing (I hope) */
971 SCTP_INP_RUNLOCK(inp);
972 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
973 return (EOPNOTSUPP);
974 }
975 /*
976 * Ok if we reach here its the TCP model and it is either a SHUT_WR
977 * or SHUT_RDWR. This means we put the shutdown flag against it.
978 */
979 {
980 struct sctp_tcb *stcb;
981 struct sctp_association *asoc;
982
983 socantsendmore(so);
984
985 stcb = LIST_FIRST(&inp->sctp_asoc_list);
986 if (stcb == NULL) {
987 /*
988 * Ok we hit the case that the shutdown call was
989 * made after an abort or something. Nothing to do
990 * now.
991 */
992 SCTP_INP_RUNLOCK(inp);
993 return (0);
994 }
995 SCTP_TCB_LOCK(stcb);
996 asoc = &stcb->asoc;
997 if (TAILQ_EMPTY(&asoc->send_queue) &&
998 TAILQ_EMPTY(&asoc->sent_queue) &&
999 (asoc->stream_queue_cnt == 0)) {
1000 if (asoc->locked_on_sending) {
1001 goto abort_anyway;
1002 }
1003 /* there is nothing queued to send, so I'm done... */
1004 if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
1005 /* only send SHUTDOWN the first time through */
1006 sctp_stop_timers_for_shutdown(stcb);
1007 sctp_send_shutdown(stcb,
1008 stcb->asoc.primary_destination);
1009 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1010 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
1011 (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
1012 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
1013 }
1014 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1015 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1016 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1017 stcb->sctp_ep, stcb,
1018 asoc->primary_destination);
1019 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1020 stcb->sctp_ep, stcb,
1021 asoc->primary_destination);
1022 }
1023 } else {
1024 /*
1025 * we still got (or just got) data to send, so set
1026 * SHUTDOWN_PENDING
1027 */
1028 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1029 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1030 asoc->primary_destination);
1031
1032 if (asoc->locked_on_sending) {
1033 /* Locked to send out the data */
1034 struct sctp_stream_queue_pending *sp;
1035
1036 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1037 if (sp == NULL) {
1038 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1039 asoc->locked_on_sending->stream_no);
1040 } else {
1041 if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1042 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1043 }
1044 }
1045 }
1046 if (TAILQ_EMPTY(&asoc->send_queue) &&
1047 TAILQ_EMPTY(&asoc->sent_queue) &&
1048 (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1049 struct mbuf *op_err;
1050
1051 abort_anyway:
1052 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
1053 0, M_DONTWAIT, 1, MT_DATA);
1054 if (op_err) {
1055 /* Fill in the user initiated abort */
1056 struct sctp_paramhdr *ph;
1057 uint32_t *ippp;
1058
1059 SCTP_BUF_LEN(op_err) =
1060 sizeof(struct sctp_paramhdr) + sizeof(uint32_t);
1061 ph = mtod(op_err,
1062 struct sctp_paramhdr *);
1063 ph->param_type = htons(
1064 SCTP_CAUSE_USER_INITIATED_ABT);
1065 ph->param_length = htons(SCTP_BUF_LEN(op_err));
1066 ippp = (uint32_t *) (ph + 1);
1067 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1068 }
1069 #if defined(SCTP_PANIC_ON_ABORT)
1070 panic("shutdown does an abort");
1071 #endif
1072 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1073 sctp_abort_an_association(stcb->sctp_ep, stcb,
1074 SCTP_RESPONSE_TO_USER_REQ,
1075 op_err, SCTP_SO_LOCKED);
1076 goto skip_unlock;
1077 } else {
1078 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1079 }
1080 }
1081 SCTP_TCB_UNLOCK(stcb);
1082 }
1083 skip_unlock:
1084 SCTP_INP_RUNLOCK(inp);
1085 return 0;
1086 }
1087
1088 /*
1089 * copies a "user" presentable address and removes embedded scope, etc.
1090 * returns 0 on success, 1 on error
1091 */
1092 static uint32_t
1093 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1094 {
1095 #ifdef INET6
1096 struct sockaddr_in6 lsa6;
1097
1098 sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1099 &lsa6);
1100 #endif
1101 memcpy(ss, sa, sa->sa_len);
1102 return (0);
1103 }
1104
1105
1106
1107 /*
1108 * NOTE: assumes addr lock is held
1109 */
1110 static size_t
1111 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1112 struct sctp_tcb *stcb,
1113 size_t limit,
1114 struct sockaddr_storage *sas,
1115 uint32_t vrf_id)
1116 {
1117 struct sctp_ifn *sctp_ifn;
1118 struct sctp_ifa *sctp_ifa;
1119 int loopback_scope, ipv4_local_scope, local_scope, site_scope;
1120 size_t actual;
1121 int ipv4_addr_legal, ipv6_addr_legal;
1122 struct sctp_vrf *vrf;
1123
1124 actual = 0;
1125 if (limit <= 0)
1126 return (actual);
1127
1128 if (stcb) {
1129 /* Turn on all the appropriate scope */
1130 loopback_scope = stcb->asoc.loopback_scope;
1131 ipv4_local_scope = stcb->asoc.ipv4_local_scope;
1132 local_scope = stcb->asoc.local_scope;
1133 site_scope = stcb->asoc.site_scope;
1134 } else {
1135 /* Turn on ALL scope, since we look at the EP */
1136 loopback_scope = ipv4_local_scope = local_scope =
1137 site_scope = 1;
1138 }
1139 ipv4_addr_legal = ipv6_addr_legal = 0;
1140 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1141 ipv6_addr_legal = 1;
1142 if (SCTP_IPV6_V6ONLY(inp) == 0) {
1143 ipv4_addr_legal = 1;
1144 }
1145 } else {
1146 ipv4_addr_legal = 1;
1147 }
1148 vrf = sctp_find_vrf(vrf_id);
1149 if (vrf == NULL) {
1150 return (0);
1151 }
1152 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1153 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1154 if ((loopback_scope == 0) &&
1155 SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1156 /* Skip loopback if loopback_scope not set */
1157 continue;
1158 }
1159 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1160 if (stcb) {
1161 /*
1162 * For the BOUND-ALL case, the list
1163 * associated with a TCB is Always
1164 * considered a reverse list.. i.e.
1165 * it lists addresses that are NOT
1166 * part of the association. If this
1167 * is one of those we must skip it.
1168 */
1169 if (sctp_is_addr_restricted(stcb,
1170 sctp_ifa)) {
1171 continue;
1172 }
1173 }
1174 switch (sctp_ifa->address.sa.sa_family) {
1175 case AF_INET:
1176 if (ipv4_addr_legal) {
1177 struct sockaddr_in *sin;
1178
1179 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
1180 if (sin->sin_addr.s_addr == 0) {
1181 /*
1182 * we skip
1183 * unspecifed
1184 * addresses
1185 */
1186 continue;
1187 }
1188 if ((ipv4_local_scope == 0) &&
1189 (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1190 continue;
1191 }
1192 #ifdef INET6
1193 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1194 in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1195 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1196 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1197 actual += sizeof(struct sockaddr_in6);
1198 } else {
1199 #endif
1200 memcpy(sas, sin, sizeof(*sin));
1201 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1202 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1203 actual += sizeof(*sin);
1204 #ifdef INET6
1205 }
1206 #endif
1207 if (actual >= limit) {
1208 return (actual);
1209 }
1210 } else {
1211 continue;
1212 }
1213 break;
1214 #ifdef INET6
1215 case AF_INET6:
1216 if (ipv6_addr_legal) {
1217 struct sockaddr_in6 *sin6;
1218
1219 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
1220 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1221 /*
1222 * we skip
1223 * unspecifed
1224 * addresses
1225 */
1226 continue;
1227 }
1228 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1229 if (local_scope == 0)
1230 continue;
1231 if (sin6->sin6_scope_id == 0) {
1232 if (sa6_recoverscope(sin6) != 0)
1233 /*
1234 *
1235 * bad
1236 *
1237 * li
1238 * nk
1239 *
1240 * loc
1241 * al
1242 *
1243 * add
1244 * re
1245 * ss
1246 * */
1247 continue;
1248 }
1249 }
1250 if ((site_scope == 0) &&
1251 (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1252 continue;
1253 }
1254 memcpy(sas, sin6, sizeof(*sin6));
1255 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1256 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1257 actual += sizeof(*sin6);
1258 if (actual >= limit) {
1259 return (actual);
1260 }
1261 } else {
1262 continue;
1263 }
1264 break;
1265 #endif
1266 default:
1267 /* TSNH */
1268 break;
1269 }
1270 }
1271 }
1272 } else {
1273 struct sctp_laddr *laddr;
1274
1275 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1276 if (stcb) {
1277 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1278 continue;
1279 }
1280 }
1281 if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1282 continue;
1283
1284 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1285 sas = (struct sockaddr_storage *)((caddr_t)sas +
1286 laddr->ifa->address.sa.sa_len);
1287 actual += laddr->ifa->address.sa.sa_len;
1288 if (actual >= limit) {
1289 return (actual);
1290 }
1291 }
1292 }
1293 return (actual);
1294 }
1295
1296 static size_t
1297 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1298 struct sctp_tcb *stcb,
1299 size_t limit,
1300 struct sockaddr_storage *sas)
1301 {
1302 size_t size = 0;
1303
1304 SCTP_IPI_ADDR_RLOCK();
1305 /* fill up addresses for the endpoint's default vrf */
1306 size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1307 inp->def_vrf_id);
1308 SCTP_IPI_ADDR_RUNLOCK();
1309 return (size);
1310 }
1311
1312 /*
1313 * NOTE: assumes addr lock is held
1314 */
1315 static int
1316 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1317 {
1318 int cnt = 0;
1319 struct sctp_vrf *vrf = NULL;
1320
1321 /*
1322 * In both sub-set bound an bound_all cases we return the MAXIMUM
1323 * number of addresses that you COULD get. In reality the sub-set
1324 * bound may have an exclusion list for a given TCB OR in the
1325 * bound-all case a TCB may NOT include the loopback or other
1326 * addresses as well.
1327 */
1328 vrf = sctp_find_vrf(vrf_id);
1329 if (vrf == NULL) {
1330 return (0);
1331 }
1332 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1333 struct sctp_ifn *sctp_ifn;
1334 struct sctp_ifa *sctp_ifa;
1335
1336 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1337 LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1338 /* Count them if they are the right type */
1339 if (sctp_ifa->address.sa.sa_family == AF_INET) {
1340 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1341 cnt += sizeof(struct sockaddr_in6);
1342 else
1343 cnt += sizeof(struct sockaddr_in);
1344
1345 } else if (sctp_ifa->address.sa.sa_family == AF_INET6)
1346 cnt += sizeof(struct sockaddr_in6);
1347 }
1348 }
1349 } else {
1350 struct sctp_laddr *laddr;
1351
1352 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1353 if (laddr->ifa->address.sa.sa_family == AF_INET) {
1354 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1355 cnt += sizeof(struct sockaddr_in6);
1356 else
1357 cnt += sizeof(struct sockaddr_in);
1358
1359 } else if (laddr->ifa->address.sa.sa_family == AF_INET6)
1360 cnt += sizeof(struct sockaddr_in6);
1361 }
1362 }
1363 return (cnt);
1364 }
1365
1366 static int
1367 sctp_count_max_addresses(struct sctp_inpcb *inp)
1368 {
1369 int cnt = 0;
1370
1371 SCTP_IPI_ADDR_RLOCK();
1372 /* count addresses for the endpoint's default VRF */
1373 cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1374 SCTP_IPI_ADDR_RUNLOCK();
1375 return (cnt);
1376 }
1377
1378 static int
1379 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1380 size_t optsize, void *p, int delay)
1381 {
1382 int error = 0;
1383 int creat_lock_on = 0;
1384 struct sctp_tcb *stcb = NULL;
1385 struct sockaddr *sa;
1386 int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1387 int added = 0;
1388 uint32_t vrf_id;
1389 int bad_addresses = 0;
1390 sctp_assoc_t *a_id;
1391
1392 SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1393
1394 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1395 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1396 /* We are already connected AND the TCP model */
1397 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1398 return (EADDRINUSE);
1399 }
1400 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1401 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1402 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1403 return (EINVAL);
1404 }
1405 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1406 SCTP_INP_RLOCK(inp);
1407 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1408 SCTP_INP_RUNLOCK(inp);
1409 }
1410 if (stcb) {
1411 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1412 return (EALREADY);
1413 }
1414 SCTP_INP_INCR_REF(inp);
1415 SCTP_ASOC_CREATE_LOCK(inp);
1416 creat_lock_on = 1;
1417 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1418 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1419 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1420 error = EFAULT;
1421 goto out_now;
1422 }
1423 totaddrp = (int *)optval;
1424 totaddr = *totaddrp;
1425 sa = (struct sockaddr *)(totaddrp + 1);
1426 stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1427 if ((stcb != NULL) || bad_addresses) {
1428 /* Already have or am bring up an association */
1429 SCTP_ASOC_CREATE_UNLOCK(inp);
1430 creat_lock_on = 0;
1431 if (stcb)
1432 SCTP_TCB_UNLOCK(stcb);
1433 if (bad_addresses == 0) {
1434 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1435 error = EALREADY;
1436 }
1437 goto out_now;
1438 }
1439 #ifdef INET6
1440 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1441 (num_v6 > 0)) {
1442 error = EINVAL;
1443 goto out_now;
1444 }
1445 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1446 (num_v4 > 0)) {
1447 struct in6pcb *inp6;
1448
1449 inp6 = (struct in6pcb *)inp;
1450 if (SCTP_IPV6_V6ONLY(inp6)) {
1451 /*
1452 * if IPV6_V6ONLY flag, ignore connections destined
1453 * to a v4 addr or v4-mapped addr
1454 */
1455 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1456 error = EINVAL;
1457 goto out_now;
1458 }
1459 }
1460 #endif /* INET6 */
1461 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1462 SCTP_PCB_FLAGS_UNBOUND) {
1463 /* Bind a ephemeral port */
1464 error = sctp_inpcb_bind(so, NULL, NULL, p);
1465 if (error) {
1466 goto out_now;
1467 }
1468 }
1469 /* FIX ME: do we want to pass in a vrf on the connect call? */
1470 vrf_id = inp->def_vrf_id;
1471
1472
1473 /* We are GOOD to go */
1474 stcb = sctp_aloc_assoc(inp, sa, 1, &error, 0, vrf_id,
1475 (struct thread *)p
1476 );
1477 if (stcb == NULL) {
1478 /* Gak! no memory */
1479 goto out_now;
1480 }
1481 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1482 /* move to second address */
1483 if (sa->sa_family == AF_INET)
1484 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1485 else
1486 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1487
1488 error = 0;
1489 added = sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1490 /* Fill in the return id */
1491 if (error) {
1492 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
1493 goto out_now;
1494 }
1495 a_id = (sctp_assoc_t *) optval;
1496 *a_id = sctp_get_associd(stcb);
1497
1498 /* initialize authentication parameters for the assoc */
1499 sctp_initialize_auth_params(inp, stcb);
1500
1501 if (delay) {
1502 /* doing delayed connection */
1503 stcb->asoc.delayed_connection = 1;
1504 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1505 } else {
1506 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1507 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1508 }
1509 SCTP_TCB_UNLOCK(stcb);
1510 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1511 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1512 /* Set the connected flag so we can queue data */
1513 soisconnecting(so);
1514 }
1515 out_now:
1516 if (creat_lock_on) {
1517 SCTP_ASOC_CREATE_UNLOCK(inp);
1518 }
1519 SCTP_INP_DECR_REF(inp);
1520 return error;
1521 }
1522
1523 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1524 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1525 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1526 SCTP_INP_RLOCK(inp); \
1527 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1528 if (stcb) { \
1529 SCTP_TCB_LOCK(stcb); \
1530 } \
1531 SCTP_INP_RUNLOCK(inp); \
1532 } else if (assoc_id != 0) { \
1533 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1534 if (stcb == NULL) { \
1535 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1536 error = ENOENT; \
1537 break; \
1538 } \
1539 } else { \
1540 stcb = NULL; \
1541 } \
1542 }
1543
1544
1545 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1546 if (size < sizeof(type)) { \
1547 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1548 error = EINVAL; \
1549 break; \
1550 } else { \
1551 destp = (type *)srcp; \
1552 } \
1553 }
1554
1555 static int
1556 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1557 void *p)
1558 {
1559 struct sctp_inpcb *inp = NULL;
1560 int error, val = 0;
1561 struct sctp_tcb *stcb = NULL;
1562
1563 if (optval == NULL) {
1564 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1565 return (EINVAL);
1566 }
1567 inp = (struct sctp_inpcb *)so->so_pcb;
1568 if (inp == 0) {
1569 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1570 return EINVAL;
1571 }
1572 error = 0;
1573
1574 switch (optname) {
1575 case SCTP_NODELAY:
1576 case SCTP_AUTOCLOSE:
1577 case SCTP_EXPLICIT_EOR:
1578 case SCTP_AUTO_ASCONF:
1579 case SCTP_DISABLE_FRAGMENTS:
1580 case SCTP_I_WANT_MAPPED_V4_ADDR:
1581 case SCTP_USE_EXT_RCVINFO:
1582 SCTP_INP_RLOCK(inp);
1583 switch (optname) {
1584 case SCTP_DISABLE_FRAGMENTS:
1585 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1586 break;
1587 case SCTP_I_WANT_MAPPED_V4_ADDR:
1588 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1589 break;
1590 case SCTP_AUTO_ASCONF:
1591 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1592 /* only valid for bound all sockets */
1593 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1594 } else {
1595 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1596 error = EINVAL;
1597 goto flags_out;
1598 }
1599 break;
1600 case SCTP_EXPLICIT_EOR:
1601 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1602 break;
1603 case SCTP_NODELAY:
1604 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1605 break;
1606 case SCTP_USE_EXT_RCVINFO:
1607 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1608 break;
1609 case SCTP_AUTOCLOSE:
1610 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1611 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1612 else
1613 val = 0;
1614 break;
1615
1616 default:
1617 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1618 error = ENOPROTOOPT;
1619 } /* end switch (sopt->sopt_name) */
1620 if (optname != SCTP_AUTOCLOSE) {
1621 /* make it an "on/off" value */
1622 val = (val != 0);
1623 }
1624 if (*optsize < sizeof(val)) {
1625 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1626 error = EINVAL;
1627 }
1628 flags_out:
1629 SCTP_INP_RUNLOCK(inp);
1630 if (error == 0) {
1631 /* return the option value */
1632 *(int *)optval = val;
1633 *optsize = sizeof(val);
1634 }
1635 break;
1636 case SCTP_GET_PACKET_LOG:
1637 {
1638 #ifdef SCTP_PACKET_LOGGING
1639 uint8_t *target;
1640 int ret;
1641
1642 SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1643 ret = sctp_copy_out_packet_log(target, (int)*optsize);
1644 *optsize = ret;
1645 #else
1646 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1647 error = EOPNOTSUPP;
1648 #endif
1649 break;
1650 }
1651 case SCTP_REUSE_PORT:
1652 {
1653 uint32_t *value;
1654
1655 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1656 /* Can't do this for a 1-m socket */
1657 error = EINVAL;
1658 break;
1659 }
1660 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1661 *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1662 *optsize = sizeof(uint32_t);
1663 }
1664 break;
1665 case SCTP_PARTIAL_DELIVERY_POINT:
1666 {
1667 uint32_t *value;
1668
1669 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1670 *value = inp->partial_delivery_point;
1671 *optsize = sizeof(uint32_t);
1672 }
1673 break;
1674 case SCTP_FRAGMENT_INTERLEAVE:
1675 {
1676 uint32_t *value;
1677
1678 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1679 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1680 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1681 *value = SCTP_FRAG_LEVEL_2;
1682 } else {
1683 *value = SCTP_FRAG_LEVEL_1;
1684 }
1685 } else {
1686 *value = SCTP_FRAG_LEVEL_0;
1687 }
1688 *optsize = sizeof(uint32_t);
1689 }
1690 break;
1691 case SCTP_CMT_ON_OFF:
1692 {
1693 struct sctp_assoc_value *av;
1694
1695 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1696 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
1697 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1698 if (stcb) {
1699 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1700 SCTP_TCB_UNLOCK(stcb);
1701
1702 } else {
1703 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1704 error = ENOTCONN;
1705 }
1706 } else {
1707 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1708 error = ENOPROTOOPT;
1709 }
1710 *optsize = sizeof(*av);
1711 }
1712 break;
1713 /* EY - set socket option for nr_sacks */
1714 case SCTP_NR_SACK_ON_OFF:
1715 {
1716 struct sctp_assoc_value *av;
1717
1718 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1719 if (SCTP_BASE_SYSCTL(sctp_nr_sack_on_off)) {
1720 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1721 if (stcb) {
1722 av->assoc_value = stcb->asoc.sctp_nr_sack_on_off;
1723 SCTP_TCB_UNLOCK(stcb);
1724
1725 } else {
1726 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1727 error = ENOTCONN;
1728 }
1729 } else {
1730 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1731 error = ENOPROTOOPT;
1732 }
1733 *optsize = sizeof(*av);
1734 }
1735 break;
1736 /* JRS - Get socket option for pluggable congestion control */
1737 case SCTP_PLUGGABLE_CC:
1738 {
1739 struct sctp_assoc_value *av;
1740
1741 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1742 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1743 if (stcb) {
1744 av->assoc_value = stcb->asoc.congestion_control_module;
1745 SCTP_TCB_UNLOCK(stcb);
1746 } else {
1747 av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1748 }
1749 *optsize = sizeof(*av);
1750 }
1751 break;
1752 case SCTP_GET_ADDR_LEN:
1753 {
1754 struct sctp_assoc_value *av;
1755
1756 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1757 error = EINVAL;
1758 #ifdef INET
1759 if (av->assoc_value == AF_INET) {
1760 av->assoc_value = sizeof(struct sockaddr_in);
1761 error = 0;
1762 }
1763 #endif
1764 #ifdef INET6
1765 if (av->assoc_value == AF_INET6) {
1766 av->assoc_value = sizeof(struct sockaddr_in6);
1767 error = 0;
1768 }
1769 #endif
1770 if (error) {
1771 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1772 }
1773 *optsize = sizeof(*av);
1774 }
1775 break;
1776 case SCTP_GET_ASSOC_NUMBER:
1777 {
1778 uint32_t *value, cnt;
1779
1780 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1781 cnt = 0;
1782 SCTP_INP_RLOCK(inp);
1783 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1784 cnt++;
1785 }
1786 SCTP_INP_RUNLOCK(inp);
1787 *value = cnt;
1788 *optsize = sizeof(uint32_t);
1789 }
1790 break;
1791
1792 case SCTP_GET_ASSOC_ID_LIST:
1793 {
1794 struct sctp_assoc_ids *ids;
1795 unsigned int at, limit;
1796
1797 SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1798 at = 0;
1799 limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1800 SCTP_INP_RLOCK(inp);
1801 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1802 if (at < limit) {
1803 ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1804 } else {
1805 error = EINVAL;
1806 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1807 break;
1808 }
1809 }
1810 SCTP_INP_RUNLOCK(inp);
1811 ids->gaids_number_of_ids = at;
1812 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1813 }
1814 break;
1815 case SCTP_CONTEXT:
1816 {
1817 struct sctp_assoc_value *av;
1818
1819 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1820 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1821
1822 if (stcb) {
1823 av->assoc_value = stcb->asoc.context;
1824 SCTP_TCB_UNLOCK(stcb);
1825 } else {
1826 SCTP_INP_RLOCK(inp);
1827 av->assoc_value = inp->sctp_context;
1828 SCTP_INP_RUNLOCK(inp);
1829 }
1830 *optsize = sizeof(*av);
1831 }
1832 break;
1833 case SCTP_VRF_ID:
1834 {
1835 uint32_t *default_vrfid;
1836
1837 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1838 *default_vrfid = inp->def_vrf_id;
1839 break;
1840 }
1841 case SCTP_GET_ASOC_VRF:
1842 {
1843 struct sctp_assoc_value *id;
1844
1845 SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1846 SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1847 if (stcb == NULL) {
1848 error = EINVAL;
1849 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1850 break;
1851 }
1852 id->assoc_value = stcb->asoc.vrf_id;
1853 break;
1854 }
1855 case SCTP_GET_VRF_IDS:
1856 {
1857 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1858 error = EOPNOTSUPP;
1859 break;
1860 }
1861 case SCTP_GET_NONCE_VALUES:
1862 {
1863 struct sctp_get_nonce_values *gnv;
1864
1865 SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1866 SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1867
1868 if (stcb) {
1869 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1870 gnv->gn_local_tag = stcb->asoc.my_vtag;
1871 SCTP_TCB_UNLOCK(stcb);
1872 } else {
1873 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1874 error = ENOTCONN;
1875 }
1876 *optsize = sizeof(*gnv);
1877 }
1878 break;
1879 case SCTP_DELAYED_SACK:
1880 {
1881 struct sctp_sack_info *sack;
1882
1883 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1884 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1885 if (stcb) {
1886 sack->sack_delay = stcb->asoc.delayed_ack;
1887 sack->sack_freq = stcb->asoc.sack_freq;
1888 SCTP_TCB_UNLOCK(stcb);
1889 } else {
1890 SCTP_INP_RLOCK(inp);
1891 sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
1892 sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
1893 SCTP_INP_RUNLOCK(inp);
1894 }
1895 *optsize = sizeof(*sack);
1896 }
1897 break;
1898
1899 case SCTP_GET_SNDBUF_USE:
1900 {
1901 struct sctp_sockstat *ss;
1902
1903 SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
1904 SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
1905
1906 if (stcb) {
1907 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
1908 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
1909 stcb->asoc.size_on_all_streams);
1910 SCTP_TCB_UNLOCK(stcb);
1911 } else {
1912 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1913 error = ENOTCONN;
1914 }
1915 *optsize = sizeof(struct sctp_sockstat);
1916 }
1917 break;
1918 case SCTP_MAX_BURST:
1919 {
1920 uint8_t *value;
1921
1922 SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize);
1923
1924 SCTP_INP_RLOCK(inp);
1925 *value = inp->sctp_ep.max_burst;
1926 SCTP_INP_RUNLOCK(inp);
1927 *optsize = sizeof(uint8_t);
1928 }
1929 break;
1930 case SCTP_MAXSEG:
1931 {
1932 struct sctp_assoc_value *av;
1933 int ovh;
1934
1935 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1936 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1937
1938 if (stcb) {
1939 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
1940 SCTP_TCB_UNLOCK(stcb);
1941 } else {
1942 SCTP_INP_RLOCK(inp);
1943 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1944 ovh = SCTP_MED_OVERHEAD;
1945 } else {
1946 ovh = SCTP_MED_V4_OVERHEAD;
1947 }
1948 if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
1949 av->assoc_value = 0;
1950 else
1951 av->assoc_value = inp->sctp_frag_point - ovh;
1952 SCTP_INP_RUNLOCK(inp);
1953 }
1954 *optsize = sizeof(struct sctp_assoc_value);
1955 }
1956 break;
1957 case SCTP_GET_STAT_LOG:
1958 error = sctp_fill_stat_log(optval, optsize);
1959 break;
1960 case SCTP_EVENTS:
1961 {
1962 struct sctp_event_subscribe *events;
1963
1964 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
1965 memset(events, 0, sizeof(*events));
1966 SCTP_INP_RLOCK(inp);
1967 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
1968 events->sctp_data_io_event = 1;
1969
1970 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
1971 events->sctp_association_event = 1;
1972
1973 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
1974 events->sctp_address_event = 1;
1975
1976 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
1977 events->sctp_send_failure_event = 1;
1978
1979 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
1980 events->sctp_peer_error_event = 1;
1981
1982 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
1983 events->sctp_shutdown_event = 1;
1984
1985 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
1986 events->sctp_partial_delivery_event = 1;
1987
1988 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
1989 events->sctp_adaptation_layer_event = 1;
1990
1991 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
1992 events->sctp_authentication_event = 1;
1993
1994 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
1995 events->sctp_sender_dry_event = 1;
1996
1997 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
1998 events->sctp_stream_reset_events = 1;
1999 SCTP_INP_RUNLOCK(inp);
2000 *optsize = sizeof(struct sctp_event_subscribe);
2001 }
2002 break;
2003
2004 case SCTP_ADAPTATION_LAYER:
2005 {
2006 uint32_t *value;
2007
2008 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2009
2010 SCTP_INP_RLOCK(inp);
2011 *value = inp->sctp_ep.adaptation_layer_indicator;
2012 SCTP_INP_RUNLOCK(inp);
2013 *optsize = sizeof(uint32_t);
2014 }
2015 break;
2016 case SCTP_SET_INITIAL_DBG_SEQ:
2017 {
2018 uint32_t *value;
2019
2020 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2021 SCTP_INP_RLOCK(inp);
2022 *value = inp->sctp_ep.initial_sequence_debug;
2023 SCTP_INP_RUNLOCK(inp);
2024 *optsize = sizeof(uint32_t);
2025 }
2026 break;
2027 case SCTP_GET_LOCAL_ADDR_SIZE:
2028 {
2029 uint32_t *value;
2030
2031 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2032 SCTP_INP_RLOCK(inp);
2033 *value = sctp_count_max_addresses(inp);
2034 SCTP_INP_RUNLOCK(inp);
2035 *optsize = sizeof(uint32_t);
2036 }
2037 break;
2038 case SCTP_GET_REMOTE_ADDR_SIZE:
2039 {
2040 uint32_t *value;
2041 size_t size;
2042 struct sctp_nets *net;
2043
2044 SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2045 /* FIXME MT: change to sctp_assoc_value? */
2046 SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2047
2048 if (stcb) {
2049 size = 0;
2050 /* Count the sizes */
2051 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2052 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) ||
2053 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) {
2054 size += sizeof(struct sockaddr_in6);
2055 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) {
2056 size += sizeof(struct sockaddr_in);
2057 } else {
2058 /* huh */
2059 break;
2060 }
2061 }
2062 SCTP_TCB_UNLOCK(stcb);
2063 *value = (uint32_t) size;
2064 } else {
2065 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2066 error = ENOTCONN;
2067 }
2068 *optsize = sizeof(uint32_t);
2069 }
2070 break;
2071 case SCTP_GET_PEER_ADDRESSES:
2072 /*
2073 * Get the address information, an array is passed in to
2074 * fill up we pack it.
2075 */
2076 {
2077 size_t cpsz, left;
2078 struct sockaddr_storage *sas;
2079 struct sctp_nets *net;
2080 struct sctp_getaddresses *saddr;
2081
2082 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2083 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2084
2085 if (stcb) {
2086 left = (*optsize) - sizeof(struct sctp_getaddresses);
2087 *optsize = sizeof(struct sctp_getaddresses);
2088 sas = (struct sockaddr_storage *)&saddr->addr[0];
2089
2090 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2091 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) ||
2092 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) {
2093 cpsz = sizeof(struct sockaddr_in6);
2094 } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) {
2095 cpsz = sizeof(struct sockaddr_in);
2096 } else {
2097 /* huh */
2098 break;
2099 }
2100 if (left < cpsz) {
2101 /* not enough room. */
2102 break;
2103 }
2104 #ifdef INET6
2105 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2106 (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) {
2107 /* Must map the address */
2108 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr,
2109 (struct sockaddr_in6 *)sas);
2110 } else {
2111 #endif
2112 memcpy(sas, &net->ro._l_addr, cpsz);
2113 #ifdef INET6
2114 }
2115 #endif
2116 ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2117
2118 sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2119 left -= cpsz;
2120 *optsize += cpsz;
2121 }
2122 SCTP_TCB_UNLOCK(stcb);
2123 } else {
2124 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2125 error = ENOENT;
2126 }
2127 }
2128 break;
2129 case SCTP_GET_LOCAL_ADDRESSES:
2130 {
2131 size_t limit, actual;
2132 struct sockaddr_storage *sas;
2133 struct sctp_getaddresses *saddr;
2134
2135 SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2136 SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2137
2138 sas = (struct sockaddr_storage *)&saddr->addr[0];
2139 limit = *optsize - sizeof(sctp_assoc_t);
2140 actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2141 if (stcb) {
2142 SCTP_TCB_UNLOCK(stcb);
2143 }
2144 *optsize = sizeof(struct sockaddr_storage) + actual;
2145 }
2146 break;
2147 case SCTP_PEER_ADDR_PARAMS:
2148 {
2149 struct sctp_paddrparams *paddrp;
2150 struct sctp_nets *net;
2151
2152 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2153 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2154
2155 net = NULL;
2156 if (stcb) {
2157 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
2158 } else {
2159 /*
2160 * We increment here since
2161 * sctp_findassociation_ep_addr() wil do a
2162 * decrement if it finds the stcb as long as
2163 * the locked tcb (last argument) is NOT a
2164 * TCB.. aka NULL.
2165 */
2166 SCTP_INP_INCR_REF(inp);
2167 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL);
2168 if (stcb == NULL) {
2169 SCTP_INP_DECR_REF(inp);
2170 }
2171 }
2172 if (stcb && (net == NULL)) {
2173 struct sockaddr *sa;
2174
2175 sa = (struct sockaddr *)&paddrp->spp_address;
2176 if (sa->sa_family == AF_INET) {
2177 struct sockaddr_in *sin;
2178
2179 sin = (struct sockaddr_in *)sa;
2180 if (sin->sin_addr.s_addr) {
2181 error = EINVAL;
2182 SCTP_TCB_UNLOCK(stcb);
2183 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2184 break;
2185 }
2186 } else if (sa->sa_family == AF_INET6) {
2187 struct sockaddr_in6 *sin6;
2188
2189 sin6 = (struct sockaddr_in6 *)sa;
2190 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2191 error = EINVAL;
2192 SCTP_TCB_UNLOCK(stcb);
2193 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2194 break;
2195 }
2196 } else {
2197 error = EAFNOSUPPORT;
2198 SCTP_TCB_UNLOCK(stcb);
2199 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2200 break;
2201 }
2202 }
2203 if (stcb) {
2204 /* Applys to the specific association */
2205 paddrp->spp_flags = 0;
2206 if (net) {
2207 int ovh;
2208
2209 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2210 ovh = SCTP_MED_OVERHEAD;
2211 } else {
2212 ovh = SCTP_MED_V4_OVERHEAD;
2213 }
2214
2215
2216 paddrp->spp_pathmaxrxt = net->failure_threshold;
2217 paddrp->spp_pathmtu = net->mtu - ovh;
2218 /* get flags for HB */
2219 if (net->dest_state & SCTP_ADDR_NOHB)
2220 paddrp->spp_flags |= SPP_HB_DISABLE;
2221 else
2222 paddrp->spp_flags |= SPP_HB_ENABLE;
2223 /* get flags for PMTU */
2224 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
2225 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2226 } else {
2227 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2228 }
2229 #ifdef INET
2230 if (net->ro._l_addr.sin.sin_family == AF_INET) {
2231 paddrp->spp_ipv4_tos = net->tos_flowlabel & 0x000000fc;
2232 paddrp->spp_flags |= SPP_IPV4_TOS;
2233 }
2234 #endif
2235 #ifdef INET6
2236 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) {
2237 paddrp->spp_ipv6_flowlabel = net->tos_flowlabel;
2238 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2239 }
2240 #endif
2241 } else {
2242 /*
2243 * No destination so return default
2244 * value
2245 */
2246 int cnt = 0;
2247
2248 paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2249 paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
2250 #ifdef INET
2251 paddrp->spp_ipv4_tos = stcb->asoc.default_tos & 0x000000fc;
2252 paddrp->spp_flags |= SPP_IPV4_TOS;
2253 #endif
2254 #ifdef INET6
2255 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel;
2256 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2257 #endif
2258 /* default settings should be these */
2259 if (stcb->asoc.hb_is_disabled == 0) {
2260 paddrp->spp_flags |= SPP_HB_ENABLE;
2261 } else {
2262 paddrp->spp_flags |= SPP_HB_DISABLE;
2263 }
2264 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2265 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
2266 cnt++;
2267 }
2268 }
2269 if (cnt) {
2270 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2271 }
2272 }
2273 paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2274 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2275 SCTP_TCB_UNLOCK(stcb);
2276 } else {
2277 /* Use endpoint defaults */
2278 SCTP_INP_RLOCK(inp);
2279 paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2280 paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2281 paddrp->spp_assoc_id = (sctp_assoc_t) 0;
2282 /* get inp's default */
2283 #ifdef INET
2284 paddrp->spp_ipv4_tos = inp->ip_inp.inp.inp_ip_tos;
2285 paddrp->spp_flags |= SPP_IPV4_TOS;
2286 #endif
2287 #ifdef INET6
2288 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2289 paddrp->spp_ipv6_flowlabel = ((struct in6pcb *)inp)->in6p_flowinfo;
2290 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2291 }
2292 #endif
2293 /* can't return this */
2294 paddrp->spp_pathmtu = 0;
2295
2296 /* default behavior, no stcb */
2297 paddrp->spp_flags = SPP_PMTUD_ENABLE;
2298
2299 if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2300 paddrp->spp_flags |= SPP_HB_ENABLE;
2301 } else {
2302 paddrp->spp_flags |= SPP_HB_DISABLE;
2303 }
2304 SCTP_INP_RUNLOCK(inp);
2305 }
2306 *optsize = sizeof(struct sctp_paddrparams);
2307 }
2308 break;
2309 case SCTP_GET_PEER_ADDR_INFO:
2310 {
2311 struct sctp_paddrinfo *paddri;
2312 struct sctp_nets *net;
2313
2314 SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2315 SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2316
2317 net = NULL;
2318 if (stcb) {
2319 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
2320 } else {
2321 /*
2322 * We increment here since
2323 * sctp_findassociation_ep_addr() wil do a
2324 * decrement if it finds the stcb as long as
2325 * the locked tcb (last argument) is NOT a
2326 * TCB.. aka NULL.
2327 */
2328 SCTP_INP_INCR_REF(inp);
2329 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
2330 if (stcb == NULL) {
2331 SCTP_INP_DECR_REF(inp);
2332 }
2333 }
2334
2335 if ((stcb) && (net)) {
2336 paddri->spinfo_state = net->dest_state & (SCTP_REACHABLE_MASK | SCTP_ADDR_NOHB);
2337 paddri->spinfo_cwnd = net->cwnd;
2338 paddri->spinfo_srtt = ((net->lastsa >> 2) + net->lastsv) >> 1;
2339 paddri->spinfo_rto = net->RTO;
2340 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2341 SCTP_TCB_UNLOCK(stcb);
2342 } else {
2343 if (stcb) {
2344 SCTP_TCB_UNLOCK(stcb);
2345 }
2346 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2347 error = ENOENT;
2348 }
2349 *optsize = sizeof(struct sctp_paddrinfo);
2350 }
2351 break;
2352 case SCTP_PCB_STATUS:
2353 {
2354 struct sctp_pcbinfo *spcb;
2355
2356 SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2357 sctp_fill_pcbinfo(spcb);
2358 *optsize = sizeof(struct sctp_pcbinfo);
2359 }
2360 break;
2361
2362 case SCTP_STATUS:
2363 {
2364 struct sctp_nets *net;
2365 struct sctp_status *sstat;
2366
2367 SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2368 SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2369
2370 if (stcb == NULL) {
2371 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2372 error = EINVAL;
2373 break;
2374 }
2375 /*
2376 * I think passing the state is fine since
2377 * sctp_constants.h will be available to the user
2378 * land.
2379 */
2380 sstat->sstat_state = stcb->asoc.state;
2381 sstat->sstat_assoc_id = sctp_get_associd(stcb);
2382 sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2383 sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2384 /*
2385 * We can't include chunks that have been passed to
2386 * the socket layer. Only things in queue.
2387 */
2388 sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2389 stcb->asoc.cnt_on_all_streams);
2390
2391
2392 sstat->sstat_instrms = stcb->asoc.streamincnt;
2393 sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2394 sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2395 memcpy(&sstat->sstat_primary.spinfo_address,
2396 &stcb->asoc.primary_destination->ro._l_addr,
2397 ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2398 net = stcb->asoc.primary_destination;
2399 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2400 /*
2401 * Again the user can get info from sctp_constants.h
2402 * for what the state of the network is.
2403 */
2404 sstat->sstat_primary.spinfo_state = net->dest_state & SCTP_REACHABLE_MASK;
2405 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2406 sstat->sstat_primary.spinfo_srtt = net->lastsa;
2407 sstat->sstat_primary.spinfo_rto = net->RTO;
2408 sstat->sstat_primary.spinfo_mtu = net->mtu;
2409 sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2410 SCTP_TCB_UNLOCK(stcb);
2411 *optsize = sizeof(*sstat);
2412 }
2413 break;
2414 case SCTP_RTOINFO:
2415 {
2416 struct sctp_rtoinfo *srto;
2417
2418 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2419 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2420
2421 if (stcb) {
2422 srto->srto_initial = stcb->asoc.initial_rto;
2423 srto->srto_max = stcb->asoc.maxrto;
2424 srto->srto_min = stcb->asoc.minrto;
2425 SCTP_TCB_UNLOCK(stcb);
2426 } else {
2427 SCTP_INP_RLOCK(inp);
2428 srto->srto_initial = inp->sctp_ep.initial_rto;
2429 srto->srto_max = inp->sctp_ep.sctp_maxrto;
2430 srto->srto_min = inp->sctp_ep.sctp_minrto;
2431 SCTP_INP_RUNLOCK(inp);
2432 }
2433 *optsize = sizeof(*srto);
2434 }
2435 break;
2436 case SCTP_ASSOCINFO:
2437 {
2438 struct sctp_assocparams *sasoc;
2439 uint32_t oldval;
2440
2441 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2442 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2443
2444 if (stcb) {
2445 oldval = sasoc->sasoc_cookie_life;
2446 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2447 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2448 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2449 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2450 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2451 SCTP_TCB_UNLOCK(stcb);
2452 } else {
2453 SCTP_INP_RLOCK(inp);
2454 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2455 sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2456 sasoc->sasoc_number_peer_destinations = 0;
2457 sasoc->sasoc_peer_rwnd = 0;
2458 sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2459 SCTP_INP_RUNLOCK(inp);
2460 }
2461 *optsize = sizeof(*sasoc);
2462 }
2463 break;
2464 case SCTP_DEFAULT_SEND_PARAM:
2465 {
2466 struct sctp_sndrcvinfo *s_info;
2467
2468 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2469 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2470
2471 if (stcb) {
2472 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2473 SCTP_TCB_UNLOCK(stcb);
2474 } else {
2475 SCTP_INP_RLOCK(inp);
2476 memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2477 SCTP_INP_RUNLOCK(inp);
2478 }
2479 *optsize = sizeof(*s_info);
2480 }
2481 break;
2482 case SCTP_INITMSG:
2483 {
2484 struct sctp_initmsg *sinit;
2485
2486 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2487 SCTP_INP_RLOCK(inp);
2488 sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2489 sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2490 sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2491 sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2492 SCTP_INP_RUNLOCK(inp);
2493 *optsize = sizeof(*sinit);
2494 }
2495 break;
2496 case SCTP_PRIMARY_ADDR:
2497 /* we allow a "get" operation on this */
2498 {
2499 struct sctp_setprim *ssp;
2500
2501 SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2502 SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2503
2504 if (stcb) {
2505 /* simply copy out the sockaddr_storage... */
2506 int len;
2507
2508 len = *optsize;
2509 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
2510 len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
2511
2512 memcpy(&ssp->ssp_addr,
2513 &stcb->asoc.primary_destination->ro._l_addr,
2514 len);
2515 SCTP_TCB_UNLOCK(stcb);
2516 } else {
2517 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2518 error = EINVAL;
2519 }
2520 *optsize = sizeof(*ssp);
2521 }
2522 break;
2523
2524 case SCTP_HMAC_IDENT:
2525 {
2526 struct sctp_hmacalgo *shmac;
2527 sctp_hmaclist_t *hmaclist;
2528 uint32_t size;
2529 int i;
2530
2531 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2532
2533 SCTP_INP_RLOCK(inp);
2534 hmaclist = inp->sctp_ep.local_hmacs;
2535 if (hmaclist == NULL) {
2536 /* no HMACs to return */
2537 *optsize = sizeof(*shmac);
2538 SCTP_INP_RUNLOCK(inp);
2539 break;
2540 }
2541 /* is there room for all of the hmac ids? */
2542 size = sizeof(*shmac) + (hmaclist->num_algo *
2543 sizeof(shmac->shmac_idents[0]));
2544 if ((size_t)(*optsize) < size) {
2545 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2546 error = EINVAL;
2547 SCTP_INP_RUNLOCK(inp);
2548 break;
2549 }
2550 /* copy in the list */
2551 shmac->shmac_number_of_idents = hmaclist->num_algo;
2552 for (i = 0; i < hmaclist->num_algo; i++) {
2553 shmac->shmac_idents[i] = hmaclist->hmac[i];
2554 }
2555 SCTP_INP_RUNLOCK(inp);
2556 *optsize = size;
2557 break;
2558 }
2559 case SCTP_AUTH_ACTIVE_KEY:
2560 {
2561 struct sctp_authkeyid *scact;
2562
2563 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2564 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2565
2566 if (stcb) {
2567 /* get the active key on the assoc */
2568 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2569 SCTP_TCB_UNLOCK(stcb);
2570 } else {
2571 /* get the endpoint active key */
2572 SCTP_INP_RLOCK(inp);
2573 scact->scact_keynumber = inp->sctp_ep.default_keyid;
2574 SCTP_INP_RUNLOCK(inp);
2575 }
2576 *optsize = sizeof(*scact);
2577 break;
2578 }
2579 case SCTP_LOCAL_AUTH_CHUNKS:
2580 {
2581 struct sctp_authchunks *sac;
2582 sctp_auth_chklist_t *chklist = NULL;
2583 size_t size = 0;
2584
2585 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2586 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2587
2588 if (stcb) {
2589 /* get off the assoc */
2590 chklist = stcb->asoc.local_auth_chunks;
2591 /* is there enough space? */
2592 size = sctp_auth_get_chklist_size(chklist);
2593 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2594 error = EINVAL;
2595 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2596 } else {
2597 /* copy in the chunks */
2598 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2599 }
2600 SCTP_TCB_UNLOCK(stcb);
2601 } else {
2602 /* get off the endpoint */
2603 SCTP_INP_RLOCK(inp);
2604 chklist = inp->sctp_ep.local_auth_chunks;
2605 /* is there enough space? */
2606 size = sctp_auth_get_chklist_size(chklist);
2607 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2608 error = EINVAL;
2609 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2610 } else {
2611 /* copy in the chunks */
2612 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2613 }
2614 SCTP_INP_RUNLOCK(inp);
2615 }
2616 *optsize = sizeof(struct sctp_authchunks) + size;
2617 break;
2618 }
2619 case SCTP_PEER_AUTH_CHUNKS:
2620 {
2621 struct sctp_authchunks *sac;
2622 sctp_auth_chklist_t *chklist = NULL;
2623 size_t size = 0;
2624
2625 SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2626 SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2627
2628 if (stcb) {
2629 /* get off the assoc */
2630 chklist = stcb->asoc.peer_auth_chunks;
2631 /* is there enough space? */
2632 size = sctp_auth_get_chklist_size(chklist);
2633 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2634 error = EINVAL;
2635 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2636 } else {
2637 /* copy in the chunks */
2638 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2639 }
2640 SCTP_TCB_UNLOCK(stcb);
2641 } else {
2642 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2643 error = ENOENT;
2644 }
2645 *optsize = sizeof(struct sctp_authchunks) + size;
2646 break;
2647 }
2648
2649
2650 default:
2651 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
2652 error = ENOPROTOOPT;
2653 *optsize = 0;
2654 break;
2655 } /* end switch (sopt->sopt_name) */
2656 return (error);
2657 }
2658
2659 static int
2660 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
2661 void *p)
2662 {
2663 int error, set_opt;
2664 uint32_t *mopt;
2665 struct sctp_tcb *stcb = NULL;
2666 struct sctp_inpcb *inp = NULL;
2667 uint32_t vrf_id;
2668
2669 if (optval == NULL) {
2670 SCTP_PRINTF("optval is NULL\n");
2671 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2672 return (EINVAL);
2673 }
2674 inp = (struct sctp_inpcb *)so->so_pcb;
2675 if (inp == 0) {
2676 SCTP_PRINTF("inp is NULL?\n");
2677 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2678 return EINVAL;
2679 }
2680 vrf_id = inp->def_vrf_id;
2681
2682 error = 0;
2683 switch (optname) {
2684 case SCTP_NODELAY:
2685 case SCTP_AUTOCLOSE:
2686 case SCTP_AUTO_ASCONF:
2687 case SCTP_EXPLICIT_EOR:
2688 case SCTP_DISABLE_FRAGMENTS:
2689 case SCTP_USE_EXT_RCVINFO:
2690 case SCTP_I_WANT_MAPPED_V4_ADDR:
2691 /* copy in the option value */
2692 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
2693 set_opt = 0;
2694 if (error)
2695 break;
2696 switch (optname) {
2697 case SCTP_DISABLE_FRAGMENTS:
2698 set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
2699 break;
2700 case SCTP_AUTO_ASCONF:
2701 /*
2702 * NOTE: we don't really support this flag
2703 */
2704 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
2705 /* only valid for bound all sockets */
2706 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
2707 } else {
2708 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2709 return (EINVAL);
2710 }
2711 break;
2712 case SCTP_EXPLICIT_EOR:
2713 set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
2714 break;
2715 case SCTP_USE_EXT_RCVINFO:
2716 set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
2717 break;
2718 case SCTP_I_WANT_MAPPED_V4_ADDR:
2719 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2720 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
2721 } else {
2722 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2723 return (EINVAL);
2724 }
2725 break;
2726 case SCTP_NODELAY:
2727 set_opt = SCTP_PCB_FLAGS_NODELAY;
2728 break;
2729 case SCTP_AUTOCLOSE:
2730 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2731 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
2732 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2733 return (EINVAL);
2734 }
2735 set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
2736 /*
2737 * The value is in ticks. Note this does not effect
2738 * old associations, only new ones.
2739 */
2740 inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
2741 break;
2742 }
2743 SCTP_INP_WLOCK(inp);
2744 if (*mopt != 0) {
2745 sctp_feature_on(inp, set_opt);
2746 } else {
2747 sctp_feature_off(inp, set_opt);
2748 }
2749 SCTP_INP_WUNLOCK(inp);
2750 break;
2751 case SCTP_REUSE_PORT:
2752 {
2753 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
2754 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
2755 /* Can't set it after we are bound */
2756 error = EINVAL;
2757 break;
2758 }
2759 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
2760 /* Can't do this for a 1-m socket */
2761 error = EINVAL;
2762 break;
2763 }
2764 if (optval)
2765 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
2766 else
2767 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
2768 }
2769 break;
2770 case SCTP_PARTIAL_DELIVERY_POINT:
2771 {
2772 uint32_t *value;
2773
2774 SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
2775 if (*value > SCTP_SB_LIMIT_RCV(so)) {
2776 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2777 error = EINVAL;
2778 break;
2779 }
2780 inp->partial_delivery_point = *value;
2781 }
2782 break;
2783 case SCTP_FRAGMENT_INTERLEAVE:
2784 /* not yet until we re-write sctp_recvmsg() */
2785 {
2786 uint32_t *level;
2787
2788 SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
2789 if (*level == SCTP_FRAG_LEVEL_2) {
2790 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
2791 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
2792 } else if (*level == SCTP_FRAG_LEVEL_1) {
2793 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
2794 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
2795 } else if (*level == SCTP_FRAG_LEVEL_0) {
2796 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
2797 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
2798
2799 } else {
2800 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2801 error = EINVAL;
2802 }
2803 }
2804 break;
2805 case SCTP_CMT_ON_OFF:
2806 {
2807 struct sctp_assoc_value *av;
2808
2809 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
2810 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
2811 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2812 if (stcb) {
2813 stcb->asoc.sctp_cmt_on_off = (uint8_t) av->assoc_value;
2814 SCTP_TCB_UNLOCK(stcb);
2815 } else {
2816 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2817 error = ENOTCONN;
2818 }
2819 } else {
2820 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
2821 error = ENOPROTOOPT;
2822 }
2823 }
2824 break;
2825 /* EY nr_sack_on_off socket option */
2826 case SCTP_NR_SACK_ON_OFF:
2827 {
2828 struct sctp_assoc_value *av;
2829
2830 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
2831 if (SCTP_BASE_SYSCTL(sctp_nr_sack_on_off)) {
2832 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2833 if (stcb) {
2834 stcb->asoc.sctp_nr_sack_on_off = (uint8_t) av->assoc_value;
2835 SCTP_TCB_UNLOCK(stcb);
2836 } else {
2837 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2838 error = ENOTCONN;
2839 }
2840 } else {
2841 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
2842 error = ENOPROTOOPT;
2843 }
2844 }
2845 break;
2846 /* JRS - Set socket option for pluggable congestion control */
2847 case SCTP_PLUGGABLE_CC:
2848 {
2849 struct sctp_assoc_value *av;
2850
2851 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
2852 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2853 if (stcb) {
2854 switch (av->assoc_value) {
2855 /*
2856 * JRS - Standard TCP congestion
2857 * control
2858 */
2859 case SCTP_CC_RFC2581:
2860 {
2861 stcb->asoc.congestion_control_module = SCTP_CC_RFC2581;
2862 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param;
2863 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_cwnd_update_after_sack;
2864 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_cwnd_update_after_fr;
2865 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout;
2866 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo;
2867 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped;
2868 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output;
2869 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer;
2870 SCTP_TCB_UNLOCK(stcb);
2871 break;
2872 }
2873 /*
2874 * JRS - High Speed TCP congestion
2875 * control (Floyd)
2876 */
2877 case SCTP_CC_HSTCP:
2878 {
2879 stcb->asoc.congestion_control_module = SCTP_CC_HSTCP;
2880 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param;
2881 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_hs_cwnd_update_after_sack;
2882 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_hs_cwnd_update_after_fr;
2883 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout;
2884 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo;
2885 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped;
2886 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output;
2887 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer;
2888 SCTP_TCB_UNLOCK(stcb);
2889 break;
2890 }
2891 /* JRS - HTCP congestion control */
2892 case SCTP_CC_HTCP:
2893 {
2894 stcb->asoc.congestion_control_module = SCTP_CC_HTCP;
2895 stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_htcp_set_initial_cc_param;
2896 stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_htcp_cwnd_update_after_sack;
2897 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_htcp_cwnd_update_after_fr;
2898 stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_htcp_cwnd_update_after_timeout;
2899 stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_htcp_cwnd_update_after_ecn_echo;
2900 stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped;
2901 stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output;
2902 stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_htcp_cwnd_update_after_fr_timer;
2903 SCTP_TCB_UNLOCK(stcb);
2904 break;
2905 }
2906 /*
2907 * JRS - All other values are
2908 * invalid
2909 */
2910 default:
2911 {
2912 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2913 error = EINVAL;
2914 SCTP_TCB_UNLOCK(stcb);
2915 break;
2916 }
2917 }
2918 } else {
2919 switch (av->assoc_value) {
2920 case SCTP_CC_RFC2581:
2921 case SCTP_CC_HSTCP:
2922 case SCTP_CC_HTCP:
2923 inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
2924 break;
2925 default:
2926 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2927 error = EINVAL;
2928 break;
2929 };
2930 }
2931 }
2932 break;
2933 case SCTP_CLR_STAT_LOG:
2934 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2935 error = EOPNOTSUPP;
2936 break;
2937 case SCTP_CONTEXT:
2938 {
2939 struct sctp_assoc_value *av;
2940
2941 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
2942 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2943
2944 if (stcb) {
2945 stcb->asoc.context = av->assoc_value;
2946 SCTP_TCB_UNLOCK(stcb);
2947 } else {
2948 SCTP_INP_WLOCK(inp);
2949 inp->sctp_context = av->assoc_value;
2950 SCTP_INP_WUNLOCK(inp);
2951 }
2952 }
2953 break;
2954 case SCTP_VRF_ID:
2955 {
2956 uint32_t *default_vrfid;
2957
2958 SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
2959 if (*default_vrfid > SCTP_MAX_VRF_ID) {
2960 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2961 error = EINVAL;
2962 break;
2963 }
2964 inp->def_vrf_id = *default_vrfid;
2965 break;
2966 }
2967 case SCTP_DEL_VRF_ID:
2968 {
2969 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2970 error = EOPNOTSUPP;
2971 break;
2972 }
2973 case SCTP_ADD_VRF_ID:
2974 {
2975 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2976 error = EOPNOTSUPP;
2977 break;
2978 }
2979 case SCTP_DELAYED_SACK:
2980 {
2981 struct sctp_sack_info *sack;
2982
2983 SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
2984 SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2985 if (sack->sack_delay) {
2986 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
2987 sack->sack_delay = SCTP_MAX_SACK_DELAY;
2988 }
2989 if (stcb) {
2990 if (sack->sack_delay) {
2991 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
2992 sack->sack_delay = TICKS_TO_MSEC(1);
2993 }
2994 stcb->asoc.delayed_ack = sack->sack_delay;
2995 }
2996 if (sack->sack_freq) {
2997 stcb->asoc.sack_freq = sack->sack_freq;
2998 }
2999 SCTP_TCB_UNLOCK(stcb);
3000 } else {
3001 SCTP_INP_WLOCK(inp);
3002 if (sack->sack_delay) {
3003 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
3004 sack->sack_delay = TICKS_TO_MSEC(1);
3005 }
3006 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
3007 }
3008 if (sack->sack_freq) {
3009 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
3010 }
3011 SCTP_INP_WUNLOCK(inp);
3012 }
3013 break;
3014 }
3015 case SCTP_AUTH_CHUNK:
3016 {
3017 struct sctp_authchunk *sauth;
3018
3019 SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
3020
3021 SCTP_INP_WLOCK(inp);
3022 if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
3023 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3024 error = EINVAL;
3025 }
3026 SCTP_INP_WUNLOCK(inp);
3027 break;
3028 }
3029 case SCTP_AUTH_KEY:
3030 {
3031 struct sctp_authkey *sca;
3032 struct sctp_keyhead *shared_keys;
3033 sctp_sharedkey_t *shared_key;
3034 sctp_key_t *key = NULL;
3035 size_t size;
3036
3037 SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
3038 SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
3039 size = optsize - sizeof(*sca);
3040
3041 if (stcb) {
3042 /* set it on the assoc */
3043 shared_keys = &stcb->asoc.shared_keys;
3044 /* clear the cached keys for this key id */
3045 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3046 /*
3047 * create the new shared key and
3048 * insert/replace it
3049 */
3050 if (size > 0) {
3051 key = sctp_set_key(sca->sca_key, (uint32_t) size);
3052 if (key == NULL) {
3053 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3054 error = ENOMEM;
3055 SCTP_TCB_UNLOCK(stcb);
3056 break;
3057 }
3058 }
3059 shared_key = sctp_alloc_sharedkey();
3060 if (shared_key == NULL) {
3061 sctp_free_key(key);
3062 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3063 error = ENOMEM;
3064 SCTP_TCB_UNLOCK(stcb);
3065 break;
3066 }
3067 shared_key->key = key;
3068 shared_key->keyid = sca->sca_keynumber;
3069 error = sctp_insert_sharedkey(shared_keys, shared_key);
3070 SCTP_TCB_UNLOCK(stcb);
3071 } else {
3072 /* set it on the endpoint */
3073 SCTP_INP_WLOCK(inp);
3074 shared_keys = &inp->sctp_ep.shared_keys;
3075 /*
3076 * clear the cached keys on all assocs for
3077 * this key id
3078 */
3079 sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
3080 /*
3081 * create the new shared key and
3082 * insert/replace it
3083 */
3084 if (size > 0) {
3085 key = sctp_set_key(sca->sca_key, (uint32_t) size);
3086 if (key == NULL) {
3087 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3088 error = ENOMEM;
3089 SCTP_INP_WUNLOCK(inp);
3090 break;
3091 }
3092 }
3093 shared_key = sctp_alloc_sharedkey();
3094 if (shared_key == NULL) {
3095 sctp_free_key(key);
3096 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3097 error = ENOMEM;
3098 SCTP_INP_WUNLOCK(inp);
3099 break;
3100 }
3101 shared_key->key = key;
3102 shared_key->keyid = sca->sca_keynumber;
3103 error = sctp_insert_sharedkey(shared_keys, shared_key);
3104 SCTP_INP_WUNLOCK(inp);
3105 }
3106 break;
3107 }
3108 case SCTP_HMAC_IDENT:
3109 {
3110 struct sctp_hmacalgo *shmac;
3111 sctp_hmaclist_t *hmaclist;
3112 uint16_t hmacid;
3113 uint32_t i;
3114
3115 size_t found;
3116
3117 SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
3118 if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) {
3119 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3120 error = EINVAL;
3121 break;
3122 }
3123 hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents);
3124 if (hmaclist == NULL) {
3125 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3126 error = ENOMEM;
3127 break;
3128 }
3129 for (i = 0; i < shmac->shmac_number_of_idents; i++) {
3130 hmacid = shmac->shmac_idents[i];
3131 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
3132 /* invalid HMACs were found */ ;
3133 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3134 error = EINVAL;
3135 sctp_free_hmaclist(hmaclist);
3136 goto sctp_set_hmac_done;
3137 }
3138 }
3139 found = 0;
3140 for (i = 0; i < hmaclist->num_algo; i++) {
3141 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
3142 /* already in list */
3143 found = 1;
3144 }
3145 }
3146 if (!found) {
3147 sctp_free_hmaclist(hmaclist);
3148 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3149 error = EINVAL;
3150 break;
3151 }
3152 /* set it on the endpoint */
3153 SCTP_INP_WLOCK(inp);
3154 if (inp->sctp_ep.local_hmacs)
3155 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
3156 inp->sctp_ep.local_hmacs = hmaclist;
3157 SCTP_INP_WUNLOCK(inp);
3158 sctp_set_hmac_done:
3159 break;
3160 }
3161 case SCTP_AUTH_ACTIVE_KEY:
3162 {
3163 struct sctp_authkeyid *scact;
3164
3165 SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid,
3166 optsize);
3167 SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
3168
3169 /* set the active key on the right place */
3170 if (stcb) {
3171 /* set the active key on the assoc */
3172 if (sctp_auth_setactivekey(stcb,
3173 scact->scact_keynumber)) {
3174 SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
3175 SCTP_FROM_SCTP_USRREQ,
3176 EINVAL);
3177 error = EINVAL;
3178 }
3179 SCTP_TCB_UNLOCK(stcb);
3180 } else {
3181 /* set the active key on the endpoint */
3182 SCTP_INP_WLOCK(inp);
3183 if (sctp_auth_setactivekey_ep(inp,
3184 scact->scact_keynumber)) {
3185 SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
3186 SCTP_FROM_SCTP_USRREQ,
3187 EINVAL);
3188 error = EINVAL;
3189 }
3190 SCTP_INP_WUNLOCK(inp);
3191 }
3192 break;
3193 }
3194 case SCTP_AUTH_DELETE_KEY:
3195 {
3196 struct sctp_authkeyid *scdel;
3197
3198 SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid,
3199 optsize);
3200 SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
3201
3202 /* delete the key from the right place */
3203 if (stcb) {
3204 if (sctp_delete_sharedkey(stcb,
3205 scdel->scact_keynumber)) {
3206 SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
3207 SCTP_FROM_SCTP_USRREQ,
3208 EINVAL);
3209 error = EINVAL;
3210 }
3211 SCTP_TCB_UNLOCK(stcb);
3212 } else {
3213 SCTP_INP_WLOCK(inp);
3214 if (sctp_delete_sharedkey_ep(inp,
3215 scdel->scact_keynumber)) {
3216 SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
3217 SCTP_FROM_SCTP_USRREQ,
3218 EINVAL);
3219 error = EINVAL;
3220 }
3221 SCTP_INP_WUNLOCK(inp);
3222 }
3223 break;
3224 }
3225 case SCTP_AUTH_DEACTIVATE_KEY:
3226 {
3227 struct sctp_authkeyid *keyid;
3228
3229 SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid,
3230 optsize);
3231 SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
3232
3233 /* deactivate the key from the right place */
3234 if (stcb) {
3235 if (sctp_deact_sharedkey(stcb,
3236 keyid->scact_keynumber)) {
3237 SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
3238 SCTP_FROM_SCTP_USRREQ,
3239 EINVAL);
3240 error = EINVAL;
3241 }
3242 SCTP_TCB_UNLOCK(stcb);
3243 } else {
3244 SCTP_INP_WLOCK(inp);
3245 if (sctp_deact_sharedkey_ep(inp,
3246 keyid->scact_keynumber)) {
3247 SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
3248 SCTP_FROM_SCTP_USRREQ,
3249 EINVAL);
3250 error = EINVAL;
3251 }
3252 SCTP_INP_WUNLOCK(inp);
3253 }
3254 break;
3255 }
3256
3257 case SCTP_RESET_STREAMS:
3258 {
3259 struct sctp_stream_reset *strrst;
3260 uint8_t send_in = 0, send_tsn = 0, send_out = 0;
3261 int i;
3262
3263 SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize);
3264 SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id);
3265
3266 if (stcb == NULL) {
3267 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3268 error = ENOENT;
3269 break;
3270 }
3271 if (stcb->asoc.peer_supports_strreset == 0) {
3272 /*
3273 * Peer does not support it, we return
3274 * protocol not supported since this is true
3275 * for this feature and this peer, not the
3276 * socket request in general.
3277 */
3278 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT);
3279 error = EPROTONOSUPPORT;
3280 SCTP_TCB_UNLOCK(stcb);
3281 break;
3282 }
3283 if (stcb->asoc.stream_reset_outstanding) {
3284 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
3285 error = EALREADY;
3286 SCTP_TCB_UNLOCK(stcb);
3287 break;
3288 }
3289 if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) {
3290 send_in = 1;
3291 } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) {
3292 send_out = 1;
3293 } else if (strrst->strrst_flags == SCTP_RESET_BOTH) {
3294 send_in = 1;
3295 send_out = 1;
3296 } else if (strrst->strrst_flags == SCTP_RESET_TSN) {
3297 send_tsn = 1;
3298 } else {
3299 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3300 error = EINVAL;
3301 SCTP_TCB_UNLOCK(stcb);
3302 break;
3303 }
3304 for (i = 0; i < strrst->strrst_num_streams; i++) {
3305 if ((send_in) &&
3306
3307 (strrst->strrst_list[i] > stcb->asoc.streamincnt)) {
3308 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3309 error = EINVAL;
3310 goto get_out;
3311 }
3312 if ((send_out) &&
3313 (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) {
3314 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3315 error = EINVAL;
3316 goto get_out;
3317 }
3318 }
3319 if (error) {
3320 get_out:
3321 SCTP_TCB_UNLOCK(stcb);
3322 break;
3323 }
3324 error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams,
3325 strrst->strrst_list,
3326 send_out, (stcb->asoc.str_reset_seq_in - 3),
3327 send_in, send_tsn);
3328
3329 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
3330 SCTP_TCB_UNLOCK(stcb);
3331 }
3332 break;
3333
3334 case SCTP_CONNECT_X:
3335 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
3336 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3337 error = EINVAL;
3338 break;
3339 }
3340 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
3341 break;
3342
3343 case SCTP_CONNECT_X_DELAYED:
3344 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
3345 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3346 error = EINVAL;
3347 break;
3348 }
3349 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
3350 break;
3351
3352 case SCTP_CONNECT_X_COMPLETE:
3353 {
3354 struct sockaddr *sa;
3355 struct sctp_nets *net;
3356
3357 /* FIXME MT: check correct? */
3358 SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
3359
3360 /* find tcb */
3361 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
3362 SCTP_INP_RLOCK(inp);
3363 stcb = LIST_FIRST(&inp->sctp_asoc_list);
3364 if (stcb) {
3365 SCTP_TCB_LOCK(stcb);
3366 net = sctp_findnet(stcb, sa);
3367 }
3368 SCTP_INP_RUNLOCK(inp);
3369 } else {
3370 /*
3371 * We increment here since
3372 * sctp_findassociation_ep_addr() wil do a
3373 * decrement if it finds the stcb as long as
3374 * the locked tcb (last argument) is NOT a
3375 * TCB.. aka NULL.
3376 */
3377 SCTP_INP_INCR_REF(inp);
3378 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
3379 if (stcb == NULL) {
3380 SCTP_INP_DECR_REF(inp);
3381 }
3382 }
3383
3384 if (stcb == NULL) {
3385 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3386 error = ENOENT;
3387 break;
3388 }
3389 if (stcb->asoc.delayed_connection == 1) {
3390 stcb->asoc.delayed_connection = 0;
3391 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
3392 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
3393 stcb->asoc.primary_destination,
3394 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
3395 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
3396 } else {
3397 /*
3398 * already expired or did not use delayed
3399 * connectx
3400 */
3401 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
3402 error = EALREADY;
3403 }
3404 SCTP_TCB_UNLOCK(stcb);
3405 }
3406 break;
3407 case SCTP_MAX_BURST:
3408 {
3409 uint8_t *burst;
3410
3411 SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize);
3412
3413 SCTP_INP_WLOCK(inp);
3414 if (*burst) {
3415 inp->sctp_ep.max_burst = *burst;
3416 }
3417 SCTP_INP_WUNLOCK(inp);
3418 }
3419 break;
3420 case SCTP_MAXSEG:
3421 {
3422 struct sctp_assoc_value *av;
3423 int ovh;
3424
3425 SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3426 SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3427
3428 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3429 ovh = SCTP_MED_OVERHEAD;
3430 } else {
3431 ovh = SCTP_MED_V4_OVERHEAD;
3432 }
3433 if (stcb) {
3434 if (av->assoc_value) {
3435 stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
3436 } else {
3437 stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
3438 }
3439 SCTP_TCB_UNLOCK(stcb);
3440 } else {
3441 SCTP_INP_WLOCK(inp);
3442 /*
3443 * FIXME MT: I think this is not in tune
3444 * with the API ID
3445 */
3446 if (av->assoc_value) {
3447 inp->sctp_frag_point = (av->assoc_value + ovh);
3448 } else {
3449 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
3450 }
3451 SCTP_INP_WUNLOCK(inp);
3452 }
3453 }
3454 break;
3455 case SCTP_EVENTS:
3456 {
3457 struct sctp_event_subscribe *events;
3458
3459 SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
3460
3461 SCTP_INP_WLOCK(inp);
3462 if (events->sctp_data_io_event) {
3463 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
3464 } else {
3465 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
3466 }
3467
3468 if (events->sctp_association_event) {
3469 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
3470 } else {
3471 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
3472 }
3473
3474 if (events->sctp_address_event) {
3475 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
3476 } else {
3477 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
3478 }
3479
3480 if (events->sctp_send_failure_event) {
3481 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
3482 } else {
3483 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
3484 }
3485
3486 if (events->sctp_peer_error_event) {
3487 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
3488 } else {
3489 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
3490 }
3491
3492 if (events->sctp_shutdown_event) {
3493 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
3494 } else {
3495 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
3496 }
3497
3498 if (events->sctp_partial_delivery_event) {
3499 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
3500 } else {
3501 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
3502 }
3503
3504 if (events->sctp_adaptation_layer_event) {
3505 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
3506 } else {
3507 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
3508 }
3509
3510 if (events->sctp_authentication_event) {
3511 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
3512 } else {
3513 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
3514 }
3515
3516 if (events->sctp_sender_dry_event) {
3517 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
3518 } else {
3519 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
3520 }
3521
3522 if (events->sctp_stream_reset_events) {
3523 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
3524 } else {
3525 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
3526 }
3527 SCTP_INP_WUNLOCK(inp);
3528 }
3529 break;
3530
3531 case SCTP_ADAPTATION_LAYER:
3532 {
3533 struct sctp_setadaptation *adap_bits;
3534
3535 SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
3536 SCTP_INP_WLOCK(inp);
3537 inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
3538 SCTP_INP_WUNLOCK(inp);
3539 }
3540 break;
3541 #ifdef SCTP_DEBUG
3542 case SCTP_SET_INITIAL_DBG_SEQ:
3543 {
3544 uint32_t *vvv;
3545
3546 SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
3547 SCTP_INP_WLOCK(inp);
3548 inp->sctp_ep.initial_sequence_debug = *vvv;
3549 SCTP_INP_WUNLOCK(inp);
3550 }
3551 break;
3552 #endif
3553 case SCTP_DEFAULT_SEND_PARAM:
3554 {
3555 struct sctp_sndrcvinfo *s_info;
3556
3557 SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
3558 SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
3559
3560 if (stcb) {
3561 if (s_info->sinfo_stream <= stcb->asoc.streamoutcnt) {
3562 memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
3563 } else {
3564 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3565 error = EINVAL;
3566 }
3567 SCTP_TCB_UNLOCK(stcb);
3568 } else {
3569 SCTP_INP_WLOCK(inp);
3570 memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
3571 SCTP_INP_WUNLOCK(inp);
3572 }
3573 }
3574 break;
3575 case SCTP_PEER_ADDR_PARAMS:
3576 /* Applys to the specific association */
3577 {
3578 struct sctp_paddrparams *paddrp;
3579 struct sctp_nets *net;
3580
3581 SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
3582 SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
3583 net = NULL;
3584 if (stcb) {
3585 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
3586 } else {
3587 /*
3588 * We increment here since
3589 * sctp_findassociation_ep_addr() wil do a
3590 * decrement if it finds the stcb as long as
3591 * the locked tcb (last argument) is NOT a
3592 * TCB.. aka NULL.
3593 */
3594 SCTP_INP_INCR_REF(inp);
3595 stcb = sctp_findassociation_ep_addr(&inp,
3596 (struct sockaddr *)&paddrp->spp_address,
3597 &net, NULL, NULL);
3598 if (stcb == NULL) {
3599 SCTP_INP_DECR_REF(inp);
3600 }
3601 }
3602 if (stcb && (net == NULL)) {
3603 struct sockaddr *sa;
3604
3605 sa = (struct sockaddr *)&paddrp->spp_address;
3606 if (sa->sa_family == AF_INET) {
3607 struct sockaddr_in *sin;
3608
3609 sin = (struct sockaddr_in *)sa;
3610 if (sin->sin_addr.s_addr) {
3611 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3612 SCTP_TCB_UNLOCK(stcb);
3613 error = EINVAL;
3614 break;
3615 }
3616 } else if (sa->sa_family == AF_INET6) {
3617 struct sockaddr_in6 *sin6;
3618
3619 sin6 = (struct sockaddr_in6 *)sa;
3620 if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3621 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3622 SCTP_TCB_UNLOCK(stcb);
3623 error = EINVAL;
3624 break;
3625 }
3626 } else {
3627 error = EAFNOSUPPORT;
3628 SCTP_TCB_UNLOCK(stcb);
3629 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3630 break;
3631 }
3632 }
3633 /* sanity checks */
3634 if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
3635 if (stcb)
3636 SCTP_TCB_UNLOCK(stcb);
3637 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3638 return (EINVAL);
3639 }
3640 if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
3641 if (stcb)
3642 SCTP_TCB_UNLOCK(stcb);
3643 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3644 return (EINVAL);
3645 }
3646 if (stcb) {
3647 /************************TCB SPECIFIC SET ******************/
3648 /*
3649 * do we change the timer for HB, we run
3650 * only one?
3651 */
3652 int ovh = 0;
3653
3654 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3655 ovh = SCTP_MED_OVERHEAD;
3656 } else {
3657 ovh = SCTP_MED_V4_OVERHEAD;
3658 }
3659
3660 if (paddrp->spp_hbinterval)
3661 stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
3662 else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
3663 stcb->asoc.heart_beat_delay = 0;
3664
3665 /* network sets ? */
3666 if (net) {
3667 /************************NET SPECIFIC SET ******************/
3668 if (paddrp->spp_flags & SPP_HB_DEMAND) {
3669 /* on demand HB */
3670 if (sctp_send_hb(stcb, 1, net) < 0) {
3671 /* asoc destroyed */
3672 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3673 error = EINVAL;
3674 break;
3675 }
3676 }
3677 if (paddrp->spp_flags & SPP_HB_DISABLE) {
3678 net->dest_state |= SCTP_ADDR_NOHB;
3679 }
3680 if (paddrp->spp_flags & SPP_HB_ENABLE) {
3681 net->dest_state &= ~SCTP_ADDR_NOHB;
3682 }
3683 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
3684 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
3685 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
3686 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
3687 }
3688 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
3689 net->mtu = paddrp->spp_pathmtu + ovh;
3690 if (net->mtu < stcb->asoc.smallest_mtu) {
3691 #ifdef SCTP_PRINT_FOR_B_AND_M
3692 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n",
3693 net->mtu);
3694 #endif
3695 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu);
3696 }
3697 }
3698 }
3699 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
3700 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
3701 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
3702 }
3703 }
3704 if (paddrp->spp_pathmaxrxt)
3705 net->failure_threshold = paddrp->spp_pathmaxrxt;
3706 #ifdef INET
3707 if (paddrp->spp_flags & SPP_IPV4_TOS) {
3708 if (net->ro._l_addr.sin.sin_family == AF_INET) {
3709 net->tos_flowlabel = paddrp->spp_ipv4_tos & 0x000000fc;
3710 }
3711 }
3712 #endif
3713 #ifdef INET6
3714 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
3715 if (net->ro._l_addr.sin6.sin6_family == AF_INET6) {
3716 net->tos_flowlabel = paddrp->spp_ipv6_flowlabel;
3717 }
3718 }
3719 #endif
3720 } else {
3721 /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
3722 if (paddrp->spp_pathmaxrxt)
3723 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
3724
3725 if (paddrp->spp_flags & SPP_HB_ENABLE) {
3726 /* Turn back on the timer */
3727 stcb->asoc.hb_is_disabled = 0;
3728 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
3729 }
3730 if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
3731 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3732 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
3733 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
3734 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
3735 }
3736 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
3737 net->mtu = paddrp->spp_pathmtu + ovh;
3738 if (net->mtu < stcb->asoc.smallest_mtu) {
3739 #ifdef SCTP_PRINT_FOR_B_AND_M
3740 SCTP_PRINTF("SCTP_PMTU_DISABLE calls sctp_pathmtu_adjustment:%d\n",
3741 net->mtu);
3742 #endif
3743 sctp_pathmtu_adjustment(inp, stcb, net, net->mtu);
3744 }
3745 }
3746 }
3747 }
3748 if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
3749 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3750 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
3751 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
3752 }
3753 }
3754 }
3755 if (paddrp->spp_flags & SPP_HB_DISABLE) {
3756 int cnt_of_unconf = 0;
3757 struct sctp_nets *lnet;
3758
3759 stcb->asoc.hb_is_disabled = 1;
3760 TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) {
3761 if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) {
3762 cnt_of_unconf++;
3763 }
3764 }
3765 /*
3766 * stop the timer ONLY if we
3767 * have no unconfirmed
3768 * addresses
3769 */
3770 if (cnt_of_unconf == 0) {
3771 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3772 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
3773 SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
3774 }
3775 }
3776 }
3777 if (paddrp->spp_flags & SPP_HB_ENABLE) {
3778 /* start up the timer. */
3779 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3780 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
3781 }
3782 }
3783 #ifdef INET
3784 if (paddrp->spp_flags & SPP_IPV4_TOS)
3785 stcb->asoc.default_tos = paddrp->spp_ipv4_tos & 0x000000fc;
3786 #endif
3787 #ifdef INET6
3788 if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL)
3789 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel;
3790 #endif
3791
3792 }
3793 SCTP_TCB_UNLOCK(stcb);
3794 } else {
3795 /************************NO TCB, SET TO default stuff ******************/
3796 SCTP_INP_WLOCK(inp);
3797 /*
3798 * For the TOS/FLOWLABEL stuff you set it
3799 * with the options on the socket
3800 */
3801 if (paddrp->spp_pathmaxrxt) {
3802 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
3803 }
3804 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
3805 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
3806 else if (paddrp->spp_hbinterval) {
3807 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
3808 paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
3809 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
3810 }
3811 if (paddrp->spp_flags & SPP_HB_ENABLE) {
3812 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
3813
3814 } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
3815 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
3816 }
3817 SCTP_INP_WUNLOCK(inp);
3818 }
3819 }
3820 break;
3821 case SCTP_RTOINFO:
3822 {
3823 struct sctp_rtoinfo *srto;
3824 uint32_t new_init, new_min, new_max;
3825
3826 SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
3827 SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
3828
3829 if (stcb) {
3830 if (srto->srto_initial)
3831 new_init = srto->srto_initial;
3832 else
3833 new_init = stcb->asoc.initial_rto;
3834 if (srto->srto_max)
3835 new_max = srto->srto_max;
3836 else
3837 new_max = stcb->asoc.maxrto;
3838 if (srto->srto_min)
3839 new_min = srto->srto_min;
3840 else
3841 new_min = stcb->asoc.minrto;
3842 if ((new_min <= new_init) && (new_init <= new_max)) {
3843 stcb->asoc.initial_rto = new_init;
3844 stcb->asoc.maxrto = new_max;
3845 stcb->asoc.minrto = new_min;
3846 } else {
3847 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3848 error = EINVAL;
3849 }
3850 SCTP_TCB_UNLOCK(stcb);
3851 } else {
3852 SCTP_INP_WLOCK(inp);
3853 if (srto->srto_initial)
3854 new_init = srto->srto_initial;
3855 else
3856 new_init = inp->sctp_ep.initial_rto;
3857 if (srto->srto_max)
3858 new_max = srto->srto_max;
3859 else
3860 new_max = inp->sctp_ep.sctp_maxrto;
3861 if (srto->srto_min)
3862 new_min = srto->srto_min;
3863 else
3864 new_min = inp->sctp_ep.sctp_minrto;
3865 if ((new_min <= new_init) && (new_init <= new_max)) {
3866 inp->sctp_ep.initial_rto = new_init;
3867 inp->sctp_ep.sctp_maxrto = new_max;
3868 inp->sctp_ep.sctp_minrto = new_min;
3869 } else {
3870 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3871 error = EINVAL;
3872 }
3873 SCTP_INP_WUNLOCK(inp);
3874 }
3875 }
3876 break;
3877 case SCTP_ASSOCINFO:
3878 {
3879 struct sctp_assocparams *sasoc;
3880
3881 SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
3882 SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
3883 if (sasoc->sasoc_cookie_life) {
3884 /* boundary check the cookie life */
3885 if (sasoc->sasoc_cookie_life < 1000)
3886 sasoc->sasoc_cookie_life = 1000;
3887 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
3888 sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
3889 }
3890 }
3891 if (stcb) {
3892 if (sasoc->sasoc_asocmaxrxt)
3893 stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
3894 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
3895 sasoc->sasoc_peer_rwnd = 0;
3896 sasoc->sasoc_local_rwnd = 0;
3897 if (sasoc->sasoc_cookie_life) {
3898 stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
3899 }
3900 SCTP_TCB_UNLOCK(stcb);
3901 } else {
3902 SCTP_INP_WLOCK(inp);
3903 if (sasoc->sasoc_asocmaxrxt)
3904 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
3905 sasoc->sasoc_number_peer_destinations = 0;
3906 sasoc->sasoc_peer_rwnd = 0;
3907 sasoc->sasoc_local_rwnd = 0;
3908 if (sasoc->sasoc_cookie_life) {
3909 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
3910 }
3911 SCTP_INP_WUNLOCK(inp);
3912 }
3913 }
3914 break;
3915 case SCTP_INITMSG:
3916 {
3917 struct sctp_initmsg *sinit;
3918
3919 SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
3920 SCTP_INP_WLOCK(inp);
3921 if (sinit->sinit_num_ostreams)
3922 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
3923
3924 if (sinit->sinit_max_instreams)
3925 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
3926
3927 if (sinit->sinit_max_attempts)
3928 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
3929
3930 if (sinit->sinit_max_init_timeo)
3931 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
3932 SCTP_INP_WUNLOCK(inp);
3933 }
3934 break;
3935 case SCTP_PRIMARY_ADDR:
3936 {
3937 struct sctp_setprim *spa;
3938 struct sctp_nets *net, *lnet;
3939
3940 SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
3941 SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
3942
3943 net = NULL;
3944 if (stcb) {
3945 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr);
3946 } else {
3947 /*
3948 * We increment here since
3949 * sctp_findassociation_ep_addr() wil do a
3950 * decrement if it finds the stcb as long as
3951 * the locked tcb (last argument) is NOT a
3952 * TCB.. aka NULL.
3953 */
3954 SCTP_INP_INCR_REF(inp);
3955 stcb = sctp_findassociation_ep_addr(&inp,
3956 (struct sockaddr *)&spa->ssp_addr,
3957 &net, NULL, NULL);
3958 if (stcb == NULL) {
3959 SCTP_INP_DECR_REF(inp);
3960 }
3961 }
3962
3963 if ((stcb) && (net)) {
3964 if ((net != stcb->asoc.primary_destination) &&
3965 (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
3966 /* Ok we need to set it */
3967 lnet = stcb->asoc.primary_destination;
3968 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
3969 if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) {
3970 net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH;
3971 }
3972 net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY;
3973 }
3974 }
3975 } else {
3976 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3977 error = EINVAL;
3978 }
3979 if (stcb) {
3980 SCTP_TCB_UNLOCK(stcb);
3981 }
3982 }
3983 break;
3984 case SCTP_SET_DYNAMIC_PRIMARY:
3985 {
3986 union sctp_sockstore *ss;
3987
3988 error = priv_check(curthread,
3989 PRIV_NETINET_RESERVEDPORT);
3990 if (error)
3991 break;
3992
3993 SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
3994 /* SUPER USER CHECK? */
3995 error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
3996 }
3997 break;
3998 case SCTP_SET_PEER_PRIMARY_ADDR:
3999 {
4000 struct sctp_setpeerprim *sspp;
4001
4002 SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
4003 SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
4004 if (stcb != NULL) {
4005 struct sctp_ifa *ifa;
4006
4007 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr,
4008 stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
4009 if (ifa == NULL) {
4010 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4011 error = EINVAL;
4012 goto out_of_it;
4013 }
4014 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
4015 /*
4016 * Must validate the ifa found is in
4017 * our ep
4018 */
4019 struct sctp_laddr *laddr;
4020 int found = 0;
4021
4022 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
4023 if (laddr->ifa == NULL) {
4024 SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
4025 __FUNCTION__);
4026 continue;
4027 }
4028 if (laddr->ifa == ifa) {
4029 found = 1;
4030 break;
4031 }
4032 }
4033 if (!found) {
4034 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4035 error = EINVAL;
4036 goto out_of_it;
4037 }
4038 }
4039 if (sctp_set_primary_ip_address_sa(stcb,
4040 (struct sockaddr *)&sspp->sspp_addr) != 0) {
4041 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4042 error = EINVAL;
4043 }
4044 out_of_it:
4045 SCTP_TCB_UNLOCK(stcb);
4046 } else {
4047 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4048 error = EINVAL;
4049 }
4050
4051 }
4052 break;
4053 case SCTP_BINDX_ADD_ADDR:
4054 {
4055 struct sctp_getaddresses *addrs;
4056 size_t sz;
4057 struct thread *td;
4058
4059 td = (struct thread *)p;
4060 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
4061 optsize);
4062 if (addrs->addr->sa_family == AF_INET) {
4063 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
4064 if (optsize < sz) {
4065 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4066 error = EINVAL;
4067 break;
4068 }
4069 if (td != NULL && prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr))) {
4070 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRNOTAVAIL);
4071 error = EADDRNOTAVAIL;
4072 break;
4073 }
4074 #ifdef INET6
4075 } else if (addrs->addr->sa_family == AF_INET6) {
4076 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
4077 if (optsize < sz) {
4078 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4079 error = EINVAL;
4080 break;
4081 }
4082 if (td != NULL && prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
4083 (SCTP_IPV6_V6ONLY(inp) != 0)) != 0) {
4084 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRNOTAVAIL);
4085 error = EADDRNOTAVAIL;
4086 break;
4087 }
4088 #endif
4089 } else {
4090 error = EAFNOSUPPORT;
4091 break;
4092 }
4093 sctp_bindx_add_address(so, inp, addrs->addr,
4094 addrs->sget_assoc_id, vrf_id,
4095 &error, p);
4096 }
4097 break;
4098 case SCTP_BINDX_REM_ADDR:
4099 {
4100 struct sctp_getaddresses *addrs;
4101 size_t sz;
4102 struct thread *td;
4103
4104 td = (struct thread *)p;
4105
4106 SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
4107 if (addrs->addr->sa_family == AF_INET) {
4108 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
4109 if (optsize < sz) {
4110 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4111 error = EINVAL;
4112 break;
4113 }
4114 if (td != NULL && prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr))) {
4115 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRNOTAVAIL);
4116 error = EADDRNOTAVAIL;
4117 break;
4118 }
4119 #ifdef INET6
4120 } else if (addrs->addr->sa_family == AF_INET6) {
4121 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
4122 if (optsize < sz) {
4123 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4124 error = EINVAL;
4125 break;
4126 }
4127 if (td != NULL && prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
4128 (SCTP_IPV6_V6ONLY(inp) != 0)) != 0) {
4129 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRNOTAVAIL);
4130 error = EADDRNOTAVAIL;
4131 break;
4132 }
4133 #endif
4134 } else {
4135 error = EAFNOSUPPORT;
4136 break;
4137 }
4138 sctp_bindx_delete_address(so, inp, addrs->addr,
4139 addrs->sget_assoc_id, vrf_id,
4140 &error);
4141 }
4142 break;
4143 default:
4144 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
4145 error = ENOPROTOOPT;
4146 break;
4147 } /* end switch (opt) */
4148 return (error);
4149 }
4150
4151 int
4152 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
4153 {
4154 void *optval = NULL;
4155 size_t optsize = 0;
4156 struct sctp_inpcb *inp;
4157 void *p;
4158 int error = 0;
4159
4160 inp = (struct sctp_inpcb *)so->so_pcb;
4161 if (inp == 0) {
4162 /* I made the same as TCP since we are not setup? */
4163 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4164 return (ECONNRESET);
4165 }
4166 if (sopt->sopt_level != IPPROTO_SCTP) {
4167 /* wrong proto level... send back up to IP */
4168 #ifdef INET6
4169 if (INP_CHECK_SOCKAF(so, AF_INET6))
4170 error = ip6_ctloutput(so, sopt);
4171 else
4172 #endif /* INET6 */
4173 error = ip_ctloutput(so, sopt);
4174 return (error);
4175 }
4176 optsize = sopt->sopt_valsize;
4177 if (optsize) {
4178 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
4179 if (optval == NULL) {
4180 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
4181 return (ENOBUFS);
4182 }
4183 error = sooptcopyin(sopt, optval, optsize, optsize);
4184 if (error) {
4185 SCTP_FREE(optval, SCTP_M_SOCKOPT);
4186 goto out;
4187 }
4188 }
4189 p = (void *)sopt->sopt_td;
4190 if (sopt->sopt_dir == SOPT_SET) {
4191 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
4192 } else if (sopt->sopt_dir == SOPT_GET) {
4193 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
4194 } else {
4195 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4196 error = EINVAL;
4197 }
4198 if ((error == 0) && (optval != NULL)) {
4199 error = sooptcopyout(sopt, optval, optsize);
4200 SCTP_FREE(optval, SCTP_M_SOCKOPT);
4201 } else if (optval != NULL) {
4202 SCTP_FREE(optval, SCTP_M_SOCKOPT);
4203 }
4204 out:
4205 return (error);
4206 }
4207
4208
4209 static int
4210 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
4211 {
4212 int error = 0;
4213 int create_lock_on = 0;
4214 uint32_t vrf_id;
4215 struct sctp_inpcb *inp;
4216 struct sctp_tcb *stcb = NULL;
4217
4218 inp = (struct sctp_inpcb *)so->so_pcb;
4219 if (inp == 0) {
4220 /* I made the same as TCP since we are not setup? */
4221 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4222 return (ECONNRESET);
4223 }
4224 if (addr == NULL) {
4225 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4226 return EINVAL;
4227 }
4228 #ifdef INET6
4229 if (addr->sa_family == AF_INET6) {
4230 struct sockaddr_in6 *sin6p;
4231
4232 if (addr->sa_len != sizeof(struct sockaddr_in6)) {
4233 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4234 return (EINVAL);
4235 }
4236 sin6p = (struct sockaddr_in6 *)addr;
4237 if (p != NULL && prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr) != 0) {
4238 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4239 return (EINVAL);
4240 }
4241 } else
4242 #endif
4243 if (addr->sa_family == AF_INET) {
4244 struct sockaddr_in *sinp;
4245
4246 if (addr->sa_len != sizeof(struct sockaddr_in)) {
4247 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4248 return (EINVAL);
4249 }
4250 sinp = (struct sockaddr_in *)addr;
4251 if (p != NULL && prison_remote_ip4(p->td_ucred, &sinp->sin_addr) != 0) {
4252 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4253 return (EINVAL);
4254 }
4255 } else {
4256 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
4257 return (EAFNOSUPPORT);
4258 }
4259 SCTP_INP_INCR_REF(inp);
4260 SCTP_ASOC_CREATE_LOCK(inp);
4261 create_lock_on = 1;
4262
4263 if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
4264 (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
4265 /* Should I really unlock ? */
4266 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
4267 error = EFAULT;
4268 goto out_now;
4269 }
4270 #ifdef INET6
4271 if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
4272 (addr->sa_family == AF_INET6)) {
4273 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4274 error = EINVAL;
4275 goto out_now;
4276 }
4277 #endif /* INET6 */
4278 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
4279 SCTP_PCB_FLAGS_UNBOUND) {
4280 /* Bind a ephemeral port */
4281 error = sctp_inpcb_bind(so, NULL, NULL, p);
4282 if (error) {
4283 goto out_now;
4284 }
4285 }
4286 /* Now do we connect? */
4287 if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
4288 (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
4289 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4290 error = EINVAL;
4291 goto out_now;
4292 }
4293 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
4294 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
4295 /* We are already connected AND the TCP model */
4296 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
4297 error = EADDRINUSE;
4298 goto out_now;
4299 }
4300 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4301 SCTP_INP_RLOCK(inp);
4302 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4303 SCTP_INP_RUNLOCK(inp);
4304 } else {
4305 /*
4306 * We increment here since sctp_findassociation_ep_addr()
4307 * will do a decrement if it finds the stcb as long as the
4308 * locked tcb (last argument) is NOT a TCB.. aka NULL.
4309 */
4310 SCTP_INP_INCR_REF(inp);
4311 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
4312 if (stcb == NULL) {
4313 SCTP_INP_DECR_REF(inp);
4314 } else {
4315 SCTP_TCB_UNLOCK(stcb);
4316 }
4317 }
4318 if (stcb != NULL) {
4319 /* Already have or am bring up an association */
4320 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4321 error = EALREADY;
4322 goto out_now;
4323 }
4324 vrf_id = inp->def_vrf_id;
4325 /* We are GOOD to go */
4326 stcb = sctp_aloc_assoc(inp, addr, 1, &error, 0, vrf_id, p);
4327 if (stcb == NULL) {
4328 /* Gak! no memory */
4329 goto out_now;
4330 }
4331 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
4332 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
4333 /* Set the connected flag so we can queue data */
4334 soisconnecting(so);
4335 }
4336 SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
4337 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4338
4339 /* initialize authentication parameters for the assoc */
4340 sctp_initialize_auth_params(inp, stcb);
4341
4342 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4343 SCTP_TCB_UNLOCK(stcb);
4344 out_now:
4345 if (create_lock_on) {
4346 SCTP_ASOC_CREATE_UNLOCK(inp);
4347 }
4348 SCTP_INP_DECR_REF(inp);
4349 return error;
4350 }
4351
4352 int
4353 sctp_listen(struct socket *so, int backlog, struct thread *p)
4354 {
4355 /*
4356 * Note this module depends on the protocol processing being called
4357 * AFTER any socket level flags and backlog are applied to the
4358 * socket. The traditional way that the socket flags are applied is
4359 * AFTER protocol processing. We have made a change to the
4360 * sys/kern/uipc_socket.c module to reverse this but this MUST be in
4361 * place if the socket API for SCTP is to work properly.
4362 */
4363
4364 int error = 0;
4365 struct sctp_inpcb *inp;
4366
4367 inp = (struct sctp_inpcb *)so->so_pcb;
4368 if (inp == 0) {
4369 /* I made the same as TCP since we are not setup? */
4370 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4371 return (ECONNRESET);
4372 }
4373 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
4374 /* See if we have a listener */
4375 struct sctp_inpcb *tinp;
4376 union sctp_sockstore store, *sp;
4377
4378 sp = &store;
4379 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
4380 /* not bound all */
4381 struct sctp_laddr *laddr;
4382
4383 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
4384 memcpy(&store, &laddr->ifa->address, sizeof(store));
4385 sp->sin.sin_port = inp->sctp_lport;
4386 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
4387 if (tinp && (tinp != inp) &&
4388 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
4389 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
4390 (tinp->sctp_socket->so_qlimit)) {
4391 /*
4392 * we have a listener already and
4393 * its not this inp.
4394 */
4395 SCTP_INP_DECR_REF(tinp);
4396 return (EADDRINUSE);
4397 } else if (tinp) {
4398 SCTP_INP_DECR_REF(tinp);
4399 }
4400 }
4401 } else {
4402 /* Setup a local addr bound all */
4403 memset(&store, 0, sizeof(store));
4404 store.sin.sin_port = inp->sctp_lport;
4405 #ifdef INET6
4406 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4407 store.sa.sa_family = AF_INET6;
4408 store.sa.sa_len = sizeof(struct sockaddr_in6);
4409 }
4410 #endif
4411 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
4412 store.sa.sa_family = AF_INET;
4413 store.sa.sa_len = sizeof(struct sockaddr_in);
4414 }
4415 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
4416 if (tinp && (tinp != inp) &&
4417 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
4418 ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
4419 (tinp->sctp_socket->so_qlimit)) {
4420 /*
4421 * we have a listener already and its not
4422 * this inp.
4423 */
4424 SCTP_INP_DECR_REF(tinp);
4425 return (EADDRINUSE);
4426 } else if (tinp) {
4427 SCTP_INP_DECR_REF(inp);
4428 }
4429 }
4430 }
4431 SCTP_INP_RLOCK(inp);
4432 #ifdef SCTP_LOCK_LOGGING
4433 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
4434 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
4435 }
4436 #endif
4437 SOCK_LOCK(so);
4438 error = solisten_proto_check(so);
4439 if (error) {
4440 SOCK_UNLOCK(so);
4441 SCTP_INP_RUNLOCK(inp);
4442 return (error);
4443 }
4444 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
4445 (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
4446 /*
4447 * The unlucky case - We are in the tcp pool with this guy.
4448 * - Someone else is in the main inp slot. - We must move
4449 * this guy (the listener) to the main slot - We must then
4450 * move the guy that was listener to the TCP Pool.
4451 */
4452 if (sctp_swap_inpcb_for_listen(inp)) {
4453 goto in_use;
4454 }
4455 }
4456 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
4457 (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
4458 /* We are already connected AND the TCP model */
4459 in_use:
4460 SCTP_INP_RUNLOCK(inp);
4461 SOCK_UNLOCK(so);
4462 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
4463 return (EADDRINUSE);
4464 }
4465 SCTP_INP_RUNLOCK(inp);
4466 if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
4467 /* We must do a bind. */
4468 SOCK_UNLOCK(so);
4469 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
4470 /* bind error, probably perm */
4471 return (error);
4472 }
4473 SOCK_LOCK(so);
4474 }
4475 /* It appears for 7.0 and on, we must always call this. */
4476 solisten_proto(so, backlog);
4477 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
4478 /* remove the ACCEPTCONN flag for one-to-many sockets */
4479 so->so_options &= ~SO_ACCEPTCONN;
4480 }
4481 if (backlog == 0) {
4482 /* turning off listen */
4483 so->so_options &= ~SO_ACCEPTCONN;
4484 }
4485 SOCK_UNLOCK(so);
4486 return (error);
4487 }
4488
4489 static int sctp_defered_wakeup_cnt = 0;
4490
4491 int
4492 sctp_accept(struct socket *so, struct sockaddr **addr)
4493 {
4494 struct sctp_tcb *stcb;
4495 struct sctp_inpcb *inp;
4496 union sctp_sockstore store;
4497
4498 #ifdef INET6
4499 int error;
4500
4501 #endif
4502 inp = (struct sctp_inpcb *)so->so_pcb;
4503
4504 if (inp == 0) {
4505 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4506 return (ECONNRESET);
4507 }
4508 SCTP_INP_RLOCK(inp);
4509 if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
4510 SCTP_INP_RUNLOCK(inp);
4511 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4512 return (EOPNOTSUPP);
4513 }
4514 if (so->so_state & SS_ISDISCONNECTED) {
4515 SCTP_INP_RUNLOCK(inp);
4516 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
4517 return (ECONNABORTED);
4518 }
4519 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4520 if (stcb == NULL) {
4521 SCTP_INP_RUNLOCK(inp);
4522 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4523 return (ECONNRESET);
4524 }
4525 SCTP_TCB_LOCK(stcb);
4526 SCTP_INP_RUNLOCK(inp);
4527 store = stcb->asoc.primary_destination->ro._l_addr;
4528 SCTP_TCB_UNLOCK(stcb);
4529 switch (store.sa.sa_family) {
4530 case AF_INET:
4531 {
4532 struct sockaddr_in *sin;
4533
4534 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
4535 sin->sin_family = AF_INET;
4536 sin->sin_len = sizeof(*sin);
4537 sin->sin_port = ((struct sockaddr_in *)&store)->sin_port;
4538 sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr;
4539 *addr = (struct sockaddr *)sin;
4540 break;
4541 }
4542 #ifdef INET6
4543 case AF_INET6:
4544 {
4545 struct sockaddr_in6 *sin6;
4546
4547 SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
4548 sin6->sin6_family = AF_INET6;
4549 sin6->sin6_len = sizeof(*sin6);
4550 sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port;
4551
4552 sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr;
4553 if ((error = sa6_recoverscope(sin6)) != 0) {
4554 SCTP_FREE_SONAME(sin6);
4555 return (error);
4556 }
4557 *addr = (struct sockaddr *)sin6;
4558 break;
4559 }
4560 #endif
4561 default:
4562 /* TSNH */
4563 break;
4564 }
4565 /* Wake any delayed sleep action */
4566 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
4567 SCTP_INP_WLOCK(inp);
4568 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
4569 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
4570 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
4571 SCTP_INP_WUNLOCK(inp);
4572 SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
4573 if (sowriteable(inp->sctp_socket)) {
4574 sowwakeup_locked(inp->sctp_socket);
4575 } else {
4576 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
4577 }
4578 SCTP_INP_WLOCK(inp);
4579 }
4580 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
4581 inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
4582 SCTP_INP_WUNLOCK(inp);
4583 SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
4584 if (soreadable(inp->sctp_socket)) {
4585 sctp_defered_wakeup_cnt++;
4586 sorwakeup_locked(inp->sctp_socket);
4587 } else {
4588 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
4589 }
4590 SCTP_INP_WLOCK(inp);
4591 }
4592 SCTP_INP_WUNLOCK(inp);
4593 }
4594 return (0);
4595 }
4596
4597 int
4598 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
4599 {
4600 struct sockaddr_in *sin;
4601 uint32_t vrf_id;
4602 struct sctp_inpcb *inp;
4603 struct sctp_ifa *sctp_ifa;
4604
4605 /*
4606 * Do the malloc first in case it blocks.
4607 */
4608 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
4609 sin->sin_family = AF_INET;
4610 sin->sin_len = sizeof(*sin);
4611 inp = (struct sctp_inpcb *)so->so_pcb;
4612 if (!inp) {
4613 SCTP_FREE_SONAME(sin);
4614 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4615 return ECONNRESET;
4616 }
4617 SCTP_INP_RLOCK(inp);
4618 sin->sin_port = inp->sctp_lport;
4619 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
4620 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4621 struct sctp_tcb *stcb;
4622 struct sockaddr_in *sin_a;
4623 struct sctp_nets *net;
4624 int fnd;
4625
4626 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4627 if (stcb == NULL) {
4628 goto notConn;
4629 }
4630 fnd = 0;
4631 sin_a = NULL;
4632 SCTP_TCB_LOCK(stcb);
4633 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4634 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
4635 if (sin_a == NULL)
4636 /* this will make coverity happy */
4637 continue;
4638
4639 if (sin_a->sin_family == AF_INET) {
4640 fnd = 1;
4641 break;
4642 }
4643 }
4644 if ((!fnd) || (sin_a == NULL)) {
4645 /* punt */
4646 SCTP_TCB_UNLOCK(stcb);
4647 goto notConn;
4648 }
4649 vrf_id = inp->def_vrf_id;
4650 sctp_ifa = sctp_source_address_selection(inp,
4651 stcb,
4652 (sctp_route_t *) & net->ro,
4653 net, 0, vrf_id);
4654 if (sctp_ifa) {
4655 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
4656 sctp_free_ifa(sctp_ifa);
4657 }
4658 SCTP_TCB_UNLOCK(stcb);
4659 } else {
4660 /* For the bound all case you get back 0 */
4661 notConn:
4662 sin->sin_addr.s_addr = 0;
4663 }
4664
4665 } else {
4666 /* Take the first IPv4 address in the list */
4667 struct sctp_laddr *laddr;
4668 int fnd = 0;
4669
4670 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
4671 if (laddr->ifa->address.sa.sa_family == AF_INET) {
4672 struct sockaddr_in *sin_a;
4673
4674 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa;
4675 sin->sin_addr = sin_a->sin_addr;
4676 fnd = 1;
4677 break;
4678 }
4679 }
4680 if (!fnd) {
4681 SCTP_FREE_SONAME(sin);
4682 SCTP_INP_RUNLOCK(inp);
4683 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4684 return ENOENT;
4685 }
4686 }
4687 SCTP_INP_RUNLOCK(inp);
4688 (*addr) = (struct sockaddr *)sin;
4689 return (0);
4690 }
4691
4692 int
4693 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
4694 {
4695 struct sockaddr_in *sin = (struct sockaddr_in *)*addr;
4696 int fnd;
4697 struct sockaddr_in *sin_a;
4698 struct sctp_inpcb *inp;
4699 struct sctp_tcb *stcb;
4700 struct sctp_nets *net;
4701
4702 /* Do the malloc first in case it blocks. */
4703 inp = (struct sctp_inpcb *)so->so_pcb;
4704 if ((inp == NULL) ||
4705 ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
4706 /* UDP type and listeners will drop out here */
4707 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
4708 return (ENOTCONN);
4709 }
4710 SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
4711 sin->sin_family = AF_INET;
4712 sin->sin_len = sizeof(*sin);
4713
4714 /* We must recapture incase we blocked */
4715 inp = (struct sctp_inpcb *)so->so_pcb;
4716 if (!inp) {
4717 SCTP_FREE_SONAME(sin);
4718 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4719 return ECONNRESET;
4720 }
4721 SCTP_INP_RLOCK(inp);
4722 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4723 if (stcb) {
4724 SCTP_TCB_LOCK(stcb);
4725 }
4726 SCTP_INP_RUNLOCK(inp);
4727 if (stcb == NULL) {
4728 SCTP_FREE_SONAME(sin);
4729 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4730 return ECONNRESET;
4731 }
4732 fnd = 0;
4733 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4734 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
4735 if (sin_a->sin_family == AF_INET) {
4736 fnd = 1;
4737 sin->sin_port = stcb->rport;
4738 sin->sin_addr = sin_a->sin_addr;
4739 break;
4740 }
4741 }
4742 SCTP_TCB_UNLOCK(stcb);
4743 if (!fnd) {
4744 /* No IPv4 address */
4745 SCTP_FREE_SONAME(sin);
4746 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4747 return ENOENT;
4748 }
4749 (*addr) = (struct sockaddr *)sin;
4750 return (0);
4751 }
4752
4753 struct pr_usrreqs sctp_usrreqs = {
4754 .pru_abort = sctp_abort,
4755 .pru_accept = sctp_accept,
4756 .pru_attach = sctp_attach,
4757 .pru_bind = sctp_bind,
4758 .pru_connect = sctp_connect,
4759 .pru_control = in_control,
4760 .pru_close = sctp_close,
4761 .pru_detach = sctp_close,
4762 .pru_sopoll = sopoll_generic,
4763 .pru_flush = sctp_flush,
4764 .pru_disconnect = sctp_disconnect,
4765 .pru_listen = sctp_listen,
4766 .pru_peeraddr = sctp_peeraddr,
4767 .pru_send = sctp_sendm,
4768 .pru_shutdown = sctp_shutdown,
4769 .pru_sockaddr = sctp_ingetaddr,
4770 .pru_sosend = sctp_sosend,
4771 .pru_soreceive = sctp_soreceive
4772 };
Cache object: 4e9eb255185f548bbd5495ba00a22660
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