1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25
26 #include <sys/types.h>
27 #include <sys/stream.h>
28 #define _SUN_TPI_VERSION 2
29 #include <sys/tihdr.h>
30 #include <sys/socket.h>
31 #include <sys/xti_inet.h>
32 #include <sys/systm.h>
33 #include <sys/ddi.h>
34 #include <sys/sunddi.h>
35 #include <sys/kmem.h>
36 #include <sys/strsubr.h>
37 #include <sys/strsun.h>
38 #include <sys/policy.h>
39
40 #include <inet/common.h>
41 #include <netinet/ip6.h>
42 #include <inet/ip.h>
43 #include <inet/ip_ire.h>
44 #include <inet/ip_if.h>
45 #include <inet/proto_set.h>
46 #include <inet/ipclassifier.h>
47 #include <inet/ipsec_impl.h>
48
49 #include <netinet/in.h>
50 #include <netinet/ip.h>
51 #include <netinet/tcp.h>
52
53 #include <inet/common.h>
54 #include <inet/ip.h>
55 #include <inet/ip6.h>
56 #include <inet/sctp_itf.h>
57 #include "sctp_impl.h"
58 #include "sctp_asconf.h"
59 #include "sctp_addr.h"
60
61 static int sctp_getpeeraddrs(sctp_t *, void *, int *);
62
63 static int
64 sctp_get_status(sctp_t *sctp, void *ptr)
65 {
66 struct sctp_status *sstat = ptr;
67 sctp_faddr_t *fp;
68 struct sockaddr_in *sin;
69 struct sockaddr_in6 *sin6;
70 struct sctp_paddrinfo *sp;
71 mblk_t *meta, *mp;
72 int i;
73 conn_t *connp = sctp->sctp_connp;
74
75 sstat->sstat_state = sctp->sctp_state;
76 sstat->sstat_rwnd = sctp->sctp_frwnd;
77
78 sp = &sstat->sstat_primary;
79 if (!sctp->sctp_primary) {
80 bzero(sp, sizeof (*sp));
81 goto noprim;
82 }
83 fp = sctp->sctp_primary;
84
85 if (fp->sf_isv4) {
86 sin = (struct sockaddr_in *)&sp->spinfo_address;
87 sin->sin_family = AF_INET;
88 sin->sin_port = connp->conn_fport;
89 IN6_V4MAPPED_TO_INADDR(&fp->sf_faddr, &sin->sin_addr);
90 sp->spinfo_mtu = sctp->sctp_hdr_len;
91 } else {
92 sin6 = (struct sockaddr_in6 *)&sp->spinfo_address;
93 sin6->sin6_family = AF_INET6;
94 sin6->sin6_port = connp->conn_fport;
95 sin6->sin6_addr = fp->sf_faddr;
96 sp->spinfo_mtu = sctp->sctp_hdr6_len;
97 }
98 sp->spinfo_state = fp->sf_state == SCTP_FADDRS_ALIVE ? SCTP_ACTIVE :
99 SCTP_INACTIVE;
100 sp->spinfo_cwnd = fp->sf_cwnd;
101 sp->spinfo_srtt = fp->sf_srtt;
102 sp->spinfo_rto = fp->sf_rto;
103 sp->spinfo_mtu += fp->sf_pmss;
104
105 noprim:
106 sstat->sstat_unackdata = 0;
107 sstat->sstat_penddata = 0;
108 sstat->sstat_instrms = sctp->sctp_num_istr;
109 sstat->sstat_outstrms = sctp->sctp_num_ostr;
110 sstat->sstat_fragmentation_point = sctp->sctp_mss -
111 sizeof (sctp_data_hdr_t);
112
113 /* count unack'd */
114 for (meta = sctp->sctp_xmit_head; meta; meta = meta->b_next) {
115 for (mp = meta->b_cont; mp; mp = mp->b_next) {
116 if (!SCTP_CHUNK_ISSENT(mp)) {
117 break;
118 }
119 if (!SCTP_CHUNK_ISACKED(mp)) {
120 sstat->sstat_unackdata++;
121 }
122 }
123 }
124
125 /*
126 * Count penddata chunks. We can only count chunks in SCTP (not
127 * data already delivered to socket layer).
128 */
129 if (sctp->sctp_instr != NULL) {
130 for (i = 0; i < sctp->sctp_num_istr; i++) {
131 for (meta = sctp->sctp_instr[i].istr_reass;
132 meta != NULL; meta = meta->b_next) {
133 for (mp = meta->b_cont; mp; mp = mp->b_cont) {
134 if (DB_TYPE(mp) != M_CTL) {
135 sstat->sstat_penddata++;
136 }
137 }
138 }
139 }
140 }
141 /* Un-Ordered Frag list */
142 for (meta = sctp->sctp_uo_frags; meta != NULL; meta = meta->b_next)
143 sstat->sstat_penddata++;
144
145 return (sizeof (*sstat));
146 }
147
148 /*
149 * SCTP_GET_PEER_ADDR_INFO
150 */
151 static int
152 sctp_get_paddrinfo(sctp_t *sctp, void *ptr, socklen_t *optlen)
153 {
154 struct sctp_paddrinfo *infop = ptr;
155 struct sockaddr_in *sin4;
156 struct sockaddr_in6 *sin6;
157 in6_addr_t faddr;
158 sctp_faddr_t *fp;
159
160 switch (infop->spinfo_address.ss_family) {
161 case AF_INET:
162 sin4 = (struct sockaddr_in *)&infop->spinfo_address;
163 IN6_INADDR_TO_V4MAPPED(&sin4->sin_addr, &faddr);
164 break;
165 case AF_INET6:
166 sin6 = (struct sockaddr_in6 *)&infop->spinfo_address;
167 faddr = sin6->sin6_addr;
168 break;
169 default:
170 return (EAFNOSUPPORT);
171 }
172
173 if ((fp = sctp_lookup_faddr(sctp, &faddr)) == NULL)
174 return (EINVAL);
175
176 infop->spinfo_state = (fp->sf_state == SCTP_FADDRS_ALIVE) ?
177 SCTP_ACTIVE : SCTP_INACTIVE;
178 infop->spinfo_cwnd = fp->sf_cwnd;
179 infop->spinfo_srtt = TICK_TO_MSEC(fp->sf_srtt);
180 infop->spinfo_rto = TICK_TO_MSEC(fp->sf_rto);
181 infop->spinfo_mtu = fp->sf_pmss;
182
183 *optlen = sizeof (struct sctp_paddrinfo);
184 return (0);
185 }
186
187 /*
188 * SCTP_RTOINFO
189 */
190 static int
191 sctp_get_rtoinfo(sctp_t *sctp, void *ptr)
192 {
193 struct sctp_rtoinfo *srto = ptr;
194
195 srto->srto_initial = TICK_TO_MSEC(sctp->sctp_rto_initial);
196 srto->srto_max = TICK_TO_MSEC(sctp->sctp_rto_max);
197 srto->srto_min = TICK_TO_MSEC(sctp->sctp_rto_min);
198
199 return (sizeof (*srto));
200 }
201
202 static int
203 sctp_set_rtoinfo(sctp_t *sctp, const void *invalp)
204 {
205 const struct sctp_rtoinfo *srto;
206 boolean_t ispriv;
207 sctp_stack_t *sctps = sctp->sctp_sctps;
208 conn_t *connp = sctp->sctp_connp;
209 uint32_t new_min, new_max;
210
211 srto = invalp;
212
213 ispriv = secpolicy_ip_config(connp->conn_cred, B_TRUE) == 0;
214
215 /*
216 * Bounds checking. Priviledged user can set the RTO initial
217 * outside the ndd boundary.
218 */
219 if (srto->srto_initial != 0 &&
220 (!ispriv && (srto->srto_initial < sctps->sctps_rto_initialg_low ||
221 srto->srto_initial > sctps->sctps_rto_initialg_high))) {
222 return (EINVAL);
223 }
224 if (srto->srto_max != 0 &&
225 (!ispriv && (srto->srto_max < sctps->sctps_rto_maxg_low ||
226 srto->srto_max > sctps->sctps_rto_maxg_high))) {
227 return (EINVAL);
228 }
229 if (srto->srto_min != 0 &&
230 (!ispriv && (srto->srto_min < sctps->sctps_rto_ming_low ||
231 srto->srto_min > sctps->sctps_rto_ming_high))) {
232 return (EINVAL);
233 }
234
235 new_min = (srto->srto_min != 0) ? srto->srto_min : sctp->sctp_rto_min;
236 new_max = (srto->srto_max != 0) ? srto->srto_max : sctp->sctp_rto_max;
237 if (new_max < new_min) {
238 return (EINVAL);
239 }
240
241 if (srto->srto_initial != 0) {
242 sctp->sctp_rto_initial = MSEC_TO_TICK(srto->srto_initial);
243 }
244
245 /* Ensure that sctp_rto_max will never be zero. */
246 if (srto->srto_max != 0) {
247 sctp->sctp_rto_max = MAX(MSEC_TO_TICK(srto->srto_max), 1);
248 }
249 if (srto->srto_min != 0) {
250 sctp->sctp_rto_min = MSEC_TO_TICK(srto->srto_min);
251 }
252
253 return (0);
254 }
255
256 /*
257 * SCTP_ASSOCINFO
258 */
259 static int
260 sctp_get_assocparams(sctp_t *sctp, void *ptr)
261 {
262 struct sctp_assocparams *sap = ptr;
263 sctp_faddr_t *fp;
264 uint16_t i;
265
266 sap->sasoc_asocmaxrxt = sctp->sctp_pa_max_rxt;
267
268 /*
269 * Count the number of peer addresses
270 */
271 for (i = 0, fp = sctp->sctp_faddrs; fp != NULL; fp = fp->sf_next) {
272 i++;
273 }
274 sap->sasoc_number_peer_destinations = i;
275 sap->sasoc_peer_rwnd = sctp->sctp_frwnd;
276 sap->sasoc_local_rwnd = sctp->sctp_rwnd;
277 sap->sasoc_cookie_life = TICK_TO_MSEC(sctp->sctp_cookie_lifetime);
278
279 return (sizeof (*sap));
280 }
281
282 static int
283 sctp_set_assocparams(sctp_t *sctp, const void *invalp)
284 {
285 const struct sctp_assocparams *sap = invalp;
286 uint32_t sum = 0;
287 sctp_faddr_t *fp;
288 sctp_stack_t *sctps = sctp->sctp_sctps;
289
290 if (sap->sasoc_asocmaxrxt) {
291 if (sctp->sctp_faddrs) {
292 /*
293 * Bounds check: as per rfc2960, assoc max retr cannot
294 * exceed the sum of all individual path max retr's.
295 */
296 for (fp = sctp->sctp_faddrs; fp; fp = fp->sf_next) {
297 sum += fp->sf_max_retr;
298 }
299 if (sap->sasoc_asocmaxrxt > sum) {
300 return (EINVAL);
301 }
302 }
303 if (sap->sasoc_asocmaxrxt < sctps->sctps_pa_max_retr_low ||
304 sap->sasoc_asocmaxrxt > sctps->sctps_pa_max_retr_high) {
305 /*
306 * Out of bounds.
307 */
308 return (EINVAL);
309 }
310 }
311 if (sap->sasoc_cookie_life != 0 &&
312 (sap->sasoc_cookie_life < sctps->sctps_cookie_life_low ||
313 sap->sasoc_cookie_life > sctps->sctps_cookie_life_high)) {
314 return (EINVAL);
315 }
316
317 if (sap->sasoc_asocmaxrxt > 0) {
318 sctp->sctp_pa_max_rxt = sap->sasoc_asocmaxrxt;
319 }
320 if (sap->sasoc_cookie_life > 0) {
321 sctp->sctp_cookie_lifetime = MSEC_TO_TICK(
322 sap->sasoc_cookie_life);
323 }
324 return (0);
325 }
326
327 /*
328 * SCTP_INITMSG
329 */
330 static int
331 sctp_get_initmsg(sctp_t *sctp, void *ptr)
332 {
333 struct sctp_initmsg *si = ptr;
334
335 si->sinit_num_ostreams = sctp->sctp_num_ostr;
336 si->sinit_max_instreams = sctp->sctp_num_istr;
337 si->sinit_max_attempts = sctp->sctp_max_init_rxt;
338 si->sinit_max_init_timeo = TICK_TO_MSEC(sctp->sctp_rto_max_init);
339
340 return (sizeof (*si));
341 }
342
343 static int
344 sctp_set_initmsg(sctp_t *sctp, const void *invalp, uint_t inlen)
345 {
346 const struct sctp_initmsg *si = invalp;
347 sctp_stack_t *sctps = sctp->sctp_sctps;
348 conn_t *connp = sctp->sctp_connp;
349
350 if (sctp->sctp_state > SCTPS_LISTEN) {
351 return (EINVAL);
352 }
353 if (inlen < sizeof (*si)) {
354 return (EINVAL);
355 }
356 if (si->sinit_num_ostreams != 0 &&
357 (si->sinit_num_ostreams < sctps->sctps_initial_out_streams_low ||
358 si->sinit_num_ostreams >
359 sctps->sctps_initial_out_streams_high)) {
360 /*
361 * Out of bounds.
362 */
363 return (EINVAL);
364 }
365 if (si->sinit_max_instreams != 0 &&
366 (si->sinit_max_instreams < sctps->sctps_max_in_streams_low ||
367 si->sinit_max_instreams > sctps->sctps_max_in_streams_high)) {
368 return (EINVAL);
369 }
370 if (si->sinit_max_attempts != 0 &&
371 (si->sinit_max_attempts < sctps->sctps_max_init_retr_low ||
372 si->sinit_max_attempts > sctps->sctps_max_init_retr_high)) {
373 return (EINVAL);
374 }
375 if (si->sinit_max_init_timeo != 0 &&
376 (secpolicy_ip_config(connp->conn_cred, B_TRUE) != 0 &&
377 (si->sinit_max_init_timeo < sctps->sctps_rto_maxg_low ||
378 si->sinit_max_init_timeo > sctps->sctps_rto_maxg_high))) {
379 return (EINVAL);
380 }
381 if (si->sinit_num_ostreams != 0)
382 sctp->sctp_num_ostr = si->sinit_num_ostreams;
383
384 if (si->sinit_max_instreams != 0)
385 sctp->sctp_num_istr = si->sinit_max_instreams;
386
387 if (si->sinit_max_attempts != 0)
388 sctp->sctp_max_init_rxt = si->sinit_max_attempts;
389
390 if (si->sinit_max_init_timeo != 0) {
391 sctp->sctp_rto_max_init =
392 MSEC_TO_TICK(si->sinit_max_init_timeo);
393 }
394 return (0);
395 }
396
397 /*
398 * SCTP_PEER_ADDR_PARAMS
399 */
400 static int
401 sctp_find_peer_fp(sctp_t *sctp, const struct sockaddr_storage *ss,
402 sctp_faddr_t **fpp)
403 {
404 struct sockaddr_in *sin;
405 struct sockaddr_in6 *sin6;
406 in6_addr_t addr;
407
408 if (ss->ss_family == AF_INET) {
409 sin = (struct sockaddr_in *)ss;
410 IN6_IPADDR_TO_V4MAPPED(sin->sin_addr.s_addr, &addr);
411 } else if (ss->ss_family == AF_INET6) {
412 sin6 = (struct sockaddr_in6 *)ss;
413 addr = sin6->sin6_addr;
414 } else if (ss->ss_family) {
415 return (EAFNOSUPPORT);
416 }
417
418 if (!ss->ss_family ||
419 SCTP_IS_ADDR_UNSPEC(IN6_IS_ADDR_V4MAPPED(&addr), addr)) {
420 *fpp = NULL;
421 } else {
422 *fpp = sctp_lookup_faddr(sctp, &addr);
423 if (*fpp == NULL) {
424 return (EINVAL);
425 }
426 }
427 return (0);
428 }
429
430 static int
431 sctp_get_peer_addr_params(sctp_t *sctp, void *ptr)
432 {
433 struct sctp_paddrparams *spp = ptr;
434 sctp_faddr_t *fp;
435 int retval;
436
437 retval = sctp_find_peer_fp(sctp, &spp->spp_address, &fp);
438 if (retval) {
439 return (retval);
440 }
441 if (fp) {
442 spp->spp_hbinterval = TICK_TO_MSEC(fp->sf_hb_interval);
443 spp->spp_pathmaxrxt = fp->sf_max_retr;
444 } else {
445 spp->spp_hbinterval = TICK_TO_MSEC(sctp->sctp_hb_interval);
446 spp->spp_pathmaxrxt = sctp->sctp_pp_max_rxt;
447 }
448 return (sizeof (*spp));
449 }
450
451 static int
452 sctp_set_peer_addr_params(sctp_t *sctp, const void *invalp)
453 {
454 const struct sctp_paddrparams *spp = invalp;
455 sctp_faddr_t *fp, *fp2;
456 int retval;
457 uint32_t sum = 0;
458 int64_t now;
459 sctp_stack_t *sctps = sctp->sctp_sctps;
460
461 retval = sctp_find_peer_fp(sctp, &spp->spp_address, &fp);
462 if (retval != 0) {
463 return (retval);
464 }
465
466 if (spp->spp_hbinterval && spp->spp_hbinterval != UINT32_MAX &&
467 (spp->spp_hbinterval < sctps->sctps_heartbeat_interval_low ||
468 spp->spp_hbinterval > sctps->sctps_heartbeat_interval_high)) {
469 return (EINVAL);
470 }
471 if (spp->spp_pathmaxrxt &&
472 (spp->spp_pathmaxrxt < sctps->sctps_pp_max_retr_low ||
473 spp->spp_pathmaxrxt > sctps->sctps_pp_max_retr_high)) {
474 return (EINVAL);
475 }
476 if (spp->spp_pathmaxrxt && sctp->sctp_faddrs) {
477 for (fp2 = sctp->sctp_faddrs; fp2; fp2 = fp2->sf_next) {
478 if (!fp || fp2 == fp) {
479 sum += spp->spp_pathmaxrxt;
480 } else {
481 sum += fp2->sf_max_retr;
482 }
483 }
484 if (sctp->sctp_pa_max_rxt > sum) {
485 return (EINVAL);
486 }
487 }
488
489 now = ddi_get_lbolt64();
490 if (fp != NULL) {
491 if (spp->spp_hbinterval == UINT32_MAX) {
492 /*
493 * Send heartbeat immediatelly, don't modify the
494 * current setting.
495 */
496 sctp_send_heartbeat(sctp, fp);
497 } else {
498 fp->sf_hb_interval = MSEC_TO_TICK(spp->spp_hbinterval);
499 fp->sf_hb_expiry = now + SET_HB_INTVL(fp);
500 /*
501 * Restart the heartbeat timer using the new intrvl.
502 * We need to call sctp_heartbeat_timer() to set
503 * the earliest heartbeat expiry time.
504 */
505 sctp_heartbeat_timer(sctp);
506 }
507 if (spp->spp_pathmaxrxt) {
508 fp->sf_max_retr = spp->spp_pathmaxrxt;
509 }
510 } else {
511 for (fp2 = sctp->sctp_faddrs; fp2 != NULL; fp2 = fp2->sf_next) {
512 if (spp->spp_hbinterval == UINT32_MAX) {
513 /*
514 * Send heartbeat immediatelly, don't modify
515 * the current setting.
516 */
517 sctp_send_heartbeat(sctp, fp2);
518 } else {
519 fp2->sf_hb_interval = MSEC_TO_TICK(
520 spp->spp_hbinterval);
521 fp2->sf_hb_expiry = now + SET_HB_INTVL(fp2);
522 }
523 if (spp->spp_pathmaxrxt) {
524 fp2->sf_max_retr = spp->spp_pathmaxrxt;
525 }
526 }
527 if (spp->spp_hbinterval != UINT32_MAX) {
528 sctp->sctp_hb_interval = MSEC_TO_TICK(
529 spp->spp_hbinterval);
530 /* Restart the heartbeat timer using the new intrvl. */
531 sctp_timer(sctp, sctp->sctp_heartbeat_mp,
532 sctp->sctp_hb_interval);
533 }
534 if (spp->spp_pathmaxrxt) {
535 sctp->sctp_pp_max_rxt = spp->spp_pathmaxrxt;
536 }
537 }
538 return (0);
539 }
540
541 /*
542 * SCTP_DEFAULT_SEND_PARAM
543 */
544 static int
545 sctp_get_def_send_params(sctp_t *sctp, void *ptr)
546 {
547 struct sctp_sndrcvinfo *sinfo = ptr;
548
549 sinfo->sinfo_stream = sctp->sctp_def_stream;
550 sinfo->sinfo_ssn = 0;
551 sinfo->sinfo_flags = sctp->sctp_def_flags;
552 sinfo->sinfo_ppid = sctp->sctp_def_ppid;
553 sinfo->sinfo_context = sctp->sctp_def_context;
554 sinfo->sinfo_timetolive = sctp->sctp_def_timetolive;
555 sinfo->sinfo_tsn = 0;
556 sinfo->sinfo_cumtsn = 0;
557
558 return (sizeof (*sinfo));
559 }
560
561 static int
562 sctp_set_def_send_params(sctp_t *sctp, const void *invalp)
563 {
564 const struct sctp_sndrcvinfo *sinfo = invalp;
565
566 if (sinfo->sinfo_stream >= sctp->sctp_num_ostr) {
567 return (EINVAL);
568 }
569
570 sctp->sctp_def_stream = sinfo->sinfo_stream;
571 sctp->sctp_def_flags = sinfo->sinfo_flags;
572 sctp->sctp_def_ppid = sinfo->sinfo_ppid;
573 sctp->sctp_def_context = sinfo->sinfo_context;
574 sctp->sctp_def_timetolive = sinfo->sinfo_timetolive;
575
576 return (0);
577 }
578
579 static int
580 sctp_set_prim(sctp_t *sctp, const void *invalp)
581 {
582 const struct sctp_setpeerprim *pp = invalp;
583 int retval;
584 sctp_faddr_t *fp;
585
586 retval = sctp_find_peer_fp(sctp, &pp->sspp_addr, &fp);
587 if (retval)
588 return (retval);
589
590 if (fp == NULL)
591 return (EINVAL);
592 if (fp == sctp->sctp_primary)
593 return (0);
594 sctp->sctp_primary = fp;
595
596 /* Only switch current if fp is alive */
597 if (fp->sf_state != SCTP_FADDRS_ALIVE || fp == sctp->sctp_current) {
598 return (0);
599 }
600 sctp_set_faddr_current(sctp, fp);
601
602 return (0);
603 }
604
605 /*
606 * Table of all known options handled on a SCTP protocol stack.
607 *
608 * Note: This table contains options processed by both SCTP and IP levels
609 * and is the superset of options that can be performed on a SCTP and IP
610 * stack.
611 */
612 opdes_t sctp_opt_arr[] = {
613
614 { SO_LINGER, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0,
615 sizeof (struct linger), {0}},
616
617 { SO_DEBUG, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
618 { SO_KEEPALIVE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
619 { SO_DONTROUTE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
620 { SO_USELOOPBACK, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}
621 },
622 { SO_BROADCAST, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
623 { SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
624 { SO_OOBINLINE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
625 { SO_TYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), {0}},
626 { SO_SNDBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
627 { SO_RCVBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
628 { SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}
629 },
630 { SO_SND_COPYAVOID, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
631 { SO_ANON_MLP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int),
632 {0}},
633 { SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int),
634 {0}},
635 { SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, 0, sizeof (int),
636 {0}},
637 { SO_EXCLBIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
638
639 { SO_DOMAIN, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), {0}},
640
641 { SO_PROTOTYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), {0}},
642
643 { SCTP_ADAPTATION_LAYER, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
644 sizeof (struct sctp_setadaptation), {0}},
645 { SCTP_ADD_ADDR, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, OP_VARLEN,
646 sizeof (int), {0}},
647 { SCTP_ASSOCINFO, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
648 sizeof (struct sctp_assocparams), {0}},
649 { SCTP_AUTOCLOSE, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
650 { SCTP_DEFAULT_SEND_PARAM, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
651 sizeof (struct sctp_sndrcvinfo), {0}},
652 { SCTP_DISABLE_FRAGMENTS, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
653 sizeof (int), {0}},
654 { SCTP_EVENTS, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
655 sizeof (struct sctp_event_subscribe), {0}},
656 { SCTP_GET_LADDRS, IPPROTO_SCTP, OA_R, OA_R, OP_NP, OP_VARLEN,
657 sizeof (int), {0}},
658 { SCTP_GET_NLADDRS, IPPROTO_SCTP, OA_R, OA_R, OP_NP, 0, sizeof (int), {0}},
659 { SCTP_GET_NPADDRS, IPPROTO_SCTP, OA_R, OA_R, OP_NP, 0, sizeof (int), {0}},
660 { SCTP_GET_PADDRS, IPPROTO_SCTP, OA_R, OA_R, OP_NP, OP_VARLEN,
661 sizeof (int), {0}},
662 { SCTP_GET_PEER_ADDR_INFO, IPPROTO_SCTP, OA_R, OA_R, OP_NP, 0,
663 sizeof (struct sctp_paddrinfo), {0}},
664 { SCTP_INITMSG, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
665 sizeof (struct sctp_initmsg), {0}},
666 { SCTP_I_WANT_MAPPED_V4_ADDR, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
667 sizeof (int), {0}},
668 { SCTP_MAXSEG, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
669 { SCTP_NODELAY, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
670 { SCTP_PEER_ADDR_PARAMS, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
671 sizeof (struct sctp_paddrparams), {0}},
672 { SCTP_PRIMARY_ADDR, IPPROTO_SCTP, OA_W, OA_W, OP_NP, 0,
673 sizeof (struct sctp_setpeerprim), {0}},
674 { SCTP_PRSCTP, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
675 { SCTP_GET_ASSOC_STATS, IPPROTO_SCTP, OA_R, OA_R, OP_NP, 0,
676 sizeof (sctp_assoc_stats_t), {0}},
677 { SCTP_REM_ADDR, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, OP_VARLEN,
678 sizeof (int), {0}},
679 { SCTP_RTOINFO, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
680 sizeof (struct sctp_rtoinfo), {0}},
681 { SCTP_SET_PEER_PRIMARY_ADDR, IPPROTO_SCTP, OA_W, OA_W, OP_NP, 0,
682 sizeof (struct sctp_setprim), {0}},
683 { SCTP_STATUS, IPPROTO_SCTP, OA_R, OA_R, OP_NP, 0,
684 sizeof (struct sctp_status), {0}},
685 { SCTP_UC_SWAP, IPPROTO_SCTP, OA_W, OA_W, OP_NP, 0,
686 sizeof (struct sctp_uc_swap), {0}},
687
688 { IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP,
689 (OP_VARLEN|OP_NODEFAULT),
690 40, {-1} /* not initialized */ },
691 { T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP,
692 (OP_VARLEN|OP_NODEFAULT),
693 40, {-1} /* not initialized */ },
694
695 { IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
696 { T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
697 { IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_DEF_FN,
698 sizeof (int), {-1}/* not initialized */ },
699
700 { IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_NODEFAULT,
701 sizeof (ipsec_req_t), {-1}/* not initialized */ },
702
703 { IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0,
704 sizeof (int), {0}/* no ifindex */ },
705
706 { IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0,
707 sizeof (int), {0}},
708
709 { IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_DEF_FN,
710 sizeof (int), {-1}/* not initialized */ },
711
712 { IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
713 sizeof (int), {0}/* no ifindex */ },
714
715 { IP_DONTFRAG, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), {0}},
716
717 { IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, 0,
718 sizeof (in_addr_t), {-1}/* not initialized */ },
719
720 { IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, 0,
721 sizeof (int), {0}},
722
723 { IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
724 (OP_NODEFAULT|OP_VARLEN),
725 sizeof (struct in6_pktinfo), {-1}/* not initialized */ },
726 { IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
727 OP_NODEFAULT,
728 sizeof (sin6_t), {-1}/* not initialized */ },
729 { IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
730 (OP_VARLEN|OP_NODEFAULT), 255*8,
731 {-1}/* not initialized */ },
732 { IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
733 (OP_VARLEN|OP_NODEFAULT), 255*8,
734 {-1}/* not initialized */ },
735 { IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
736 (OP_VARLEN|OP_NODEFAULT), 255*8,
737 {-1}/* not initialized */ },
738 { IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
739 (OP_VARLEN|OP_NODEFAULT), 255*8,
740 {-1}/* not initialized */ },
741 { IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
742 OP_NODEFAULT,
743 sizeof (int), {-1}/* not initialized */ },
744 { IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
745 OP_NODEFAULT,
746 sizeof (struct ip6_mtuinfo), {-1}/* not initialized */ },
747 { IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
748 sizeof (int), {0}},
749 { IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
750 sizeof (int), {0}},
751 { IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
752 sizeof (int), {0}},
753
754 /* Enable receipt of ancillary data */
755 { IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
756 sizeof (int), {0}},
757 { IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
758 sizeof (int), {0}},
759 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
760 sizeof (int), {0}},
761 { IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
762 sizeof (int), {0}},
763 { _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
764 sizeof (int), {0}},
765 { IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
766 sizeof (int), {0}},
767 { IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
768 sizeof (int), {0}},
769 { IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
770 sizeof (int), {0}},
771 { IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
772 sizeof (int), {0}},
773
774 { IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_NODEFAULT,
775 sizeof (ipsec_req_t), {-1}/* not initialized */ },
776 { IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
777 sizeof (uint32_t), {IPV6_PREFER_SRC_DEFAULT} },
778 };
779
780 uint_t sctp_opt_arr_size = A_CNT(sctp_opt_arr);
781
782 /* Handy on off switch for socket option processing. */
783 #define ONOFF(x) ((x) == 0 ? 0 : 1)
784
785 /*
786 * SCTP routine to get the values of options.
787 */
788 int
789 sctp_get_opt(sctp_t *sctp, int level, int name, void *ptr, socklen_t *optlen)
790 {
791 int *i1 = (int *)ptr;
792 int retval = 0;
793 int buflen = *optlen;
794 conn_t *connp = sctp->sctp_connp;
795 conn_opt_arg_t coas;
796
797 coas.coa_connp = connp;
798 coas.coa_ixa = connp->conn_ixa;
799 coas.coa_ipp = &connp->conn_xmit_ipp;
800
801 /* In most cases, the return buffer is just an int */
802 *optlen = sizeof (int32_t);
803
804 RUN_SCTP(sctp);
805
806 if (connp->conn_state_flags & CONN_CLOSING) {
807 WAKE_SCTP(sctp);
808 return (EINVAL);
809 }
810
811 /*
812 * Check that the level and name are supported by SCTP, and that
813 * the length and credentials are ok.
814 */
815 retval = proto_opt_check(level, name, buflen, NULL, sctp_opt_arr,
816 sctp_opt_arr_size, B_FALSE, B_TRUE, connp->conn_cred);
817 if (retval != 0) {
818 WAKE_SCTP(sctp);
819 if (retval < 0) {
820 retval = proto_tlitosyserr(-retval);
821 }
822 return (retval);
823 }
824
825 switch (level) {
826 case IPPROTO_SCTP:
827 switch (name) {
828 case SCTP_RTOINFO:
829 *optlen = sctp_get_rtoinfo(sctp, ptr);
830 break;
831 case SCTP_ASSOCINFO:
832 *optlen = sctp_get_assocparams(sctp, ptr);
833 break;
834 case SCTP_INITMSG:
835 *optlen = sctp_get_initmsg(sctp, ptr);
836 break;
837 case SCTP_NODELAY:
838 *i1 = sctp->sctp_ndelay;
839 break;
840 case SCTP_AUTOCLOSE:
841 *i1 = TICK_TO_SEC(sctp->sctp_autoclose);
842 break;
843 case SCTP_ADAPTATION_LAYER:
844 ((struct sctp_setadaptation *)ptr)->ssb_adaptation_ind =
845 sctp->sctp_tx_adaptation_code;
846 break;
847 case SCTP_PEER_ADDR_PARAMS:
848 *optlen = sctp_get_peer_addr_params(sctp, ptr);
849 break;
850 case SCTP_DEFAULT_SEND_PARAM:
851 *optlen = sctp_get_def_send_params(sctp, ptr);
852 break;
853 case SCTP_EVENTS: {
854 struct sctp_event_subscribe *ev;
855
856 ev = (struct sctp_event_subscribe *)ptr;
857 ev->sctp_data_io_event =
858 ONOFF(sctp->sctp_recvsndrcvinfo);
859 ev->sctp_association_event =
860 ONOFF(sctp->sctp_recvassocevnt);
861 ev->sctp_address_event =
862 ONOFF(sctp->sctp_recvpathevnt);
863 ev->sctp_send_failure_event =
864 ONOFF(sctp->sctp_recvsendfailevnt);
865 ev->sctp_peer_error_event =
866 ONOFF(sctp->sctp_recvpeererr);
867 ev->sctp_shutdown_event =
868 ONOFF(sctp->sctp_recvshutdownevnt);
869 ev->sctp_partial_delivery_event =
870 ONOFF(sctp->sctp_recvpdevnt);
871 ev->sctp_adaptation_layer_event =
872 ONOFF(sctp->sctp_recvalevnt);
873 *optlen = sizeof (struct sctp_event_subscribe);
874 break;
875 }
876 case SCTP_STATUS:
877 *optlen = sctp_get_status(sctp, ptr);
878 break;
879 case SCTP_GET_PEER_ADDR_INFO:
880 retval = sctp_get_paddrinfo(sctp, ptr, optlen);
881 break;
882 case SCTP_GET_NLADDRS:
883 *(int32_t *)ptr = sctp->sctp_nsaddrs;
884 break;
885 case SCTP_GET_LADDRS: {
886 int addr_cnt;
887 int addr_size;
888
889 if (connp->conn_family == AF_INET)
890 addr_size = sizeof (struct sockaddr_in);
891 else
892 addr_size = sizeof (struct sockaddr_in6);
893 addr_cnt = buflen / addr_size;
894 retval = sctp_getmyaddrs(sctp, ptr, &addr_cnt);
895 if (retval == 0)
896 *optlen = addr_cnt * addr_size;
897 break;
898 }
899 case SCTP_GET_NPADDRS: {
900 int i;
901 sctp_faddr_t *fp;
902
903 for (i = 0, fp = sctp->sctp_faddrs; fp != NULL;
904 i++, fp = fp->sf_next)
905 ;
906 *(int32_t *)ptr = i;
907 break;
908 }
909 case SCTP_GET_PADDRS: {
910 int addr_cnt;
911 int addr_size;
912
913 if (connp->conn_family == AF_INET)
914 addr_size = sizeof (struct sockaddr_in);
915 else
916 addr_size = sizeof (struct sockaddr_in6);
917 addr_cnt = buflen / addr_size;
918 retval = sctp_getpeeraddrs(sctp, ptr, &addr_cnt);
919 if (retval == 0)
920 *optlen = addr_cnt * addr_size;
921 break;
922 }
923 case SCTP_PRSCTP:
924 *i1 = sctp->sctp_prsctp_aware ? 1 : 0;
925 break;
926
927 case SCTP_GET_ASSOC_STATS: {
928 sctp_assoc_stats_t *sas;
929
930 sas = (sctp_assoc_stats_t *)ptr;
931
932 /*
933 * Copy the current stats to the stats struct.
934 * For stats which can be reset by snmp users
935 * add the cumulative and current stats for
936 * the raw totals to output to the user.
937 */
938 sas->sas_gapcnt = sctp->sctp_gapcnt;
939 sas->sas_outseqtsns = sctp->sctp_outseqtsns;
940 sas->sas_osacks = sctp->sctp_osacks;
941 sas->sas_isacks = sctp->sctp_isacks;
942 sas->sas_idupchunks = sctp->sctp_idupchunks;
943 sas->sas_rtxchunks = sctp->sctp_rxtchunks +
944 sctp->sctp_cum_rxtchunks;
945 sas->sas_octrlchunks = sctp->sctp_obchunks +
946 sctp->sctp_cum_obchunks;
947 sas->sas_ictrlchunks = sctp->sctp_ibchunks +
948 sctp->sctp_cum_ibchunks;
949 sas->sas_oodchunks = sctp->sctp_odchunks +
950 sctp->sctp_cum_odchunks;
951 sas->sas_iodchunks = sctp->sctp_idchunks +
952 sctp->sctp_cum_idchunks;
953 sas->sas_ouodchunks = sctp->sctp_oudchunks +
954 sctp->sctp_cum_oudchunks;
955 sas->sas_iuodchunks = sctp->sctp_iudchunks +
956 sctp->sctp_cum_iudchunks;
957
958 /*
959 * Copy out the maximum observed RTO since the
960 * time this data was last requested
961 */
962 if (sctp->sctp_maxrto == 0) {
963 /* unchanged during obervation period */
964 sas->sas_maxrto = sctp->sctp_prev_maxrto;
965 } else {
966 /* record new period maximum */
967 sas->sas_maxrto = sctp->sctp_maxrto;
968 }
969 /* Record the value sent to the user this period */
970 sctp->sctp_prev_maxrto = sas->sas_maxrto;
971
972 /* Mark beginning of a new observation period */
973 sctp->sctp_maxrto = 0;
974
975 *optlen = sizeof (sctp_assoc_stats_t);
976 break;
977 }
978 case SCTP_I_WANT_MAPPED_V4_ADDR:
979 case SCTP_MAXSEG:
980 case SCTP_DISABLE_FRAGMENTS:
981 default:
982 /* Not yet supported. */
983 retval = ENOPROTOOPT;
984 break;
985 }
986 WAKE_SCTP(sctp);
987 return (retval);
988 case IPPROTO_IP:
989 if (connp->conn_family != AF_INET) {
990 retval = EINVAL;
991 break;
992 }
993 switch (name) {
994 case IP_OPTIONS:
995 case T_IP_OPTIONS: {
996 /*
997 * This is compatible with BSD in that in only return
998 * the reverse source route with the final destination
999 * as the last entry. The first 4 bytes of the option
1000 * will contain the final destination. Allocate a
1001 * buffer large enough to hold all the options, we
1002 * add IP_ADDR_LEN to SCTP_MAX_IP_OPTIONS_LENGTH since
1003 * ip_opt_get_user() adds the final destination
1004 * at the start.
1005 */
1006 int opt_len;
1007 uchar_t obuf[SCTP_MAX_IP_OPTIONS_LENGTH + IP_ADDR_LEN];
1008
1009 opt_len = ip_opt_get_user(connp, obuf);
1010 ASSERT(opt_len <= sizeof (obuf));
1011
1012 if (buflen < opt_len) {
1013 /* Silently truncate */
1014 opt_len = buflen;
1015 }
1016 *optlen = opt_len;
1017 bcopy(obuf, ptr, opt_len);
1018 WAKE_SCTP(sctp);
1019 return (0);
1020 }
1021 default:
1022 break;
1023 }
1024 break;
1025 }
1026 mutex_enter(&connp->conn_lock);
1027 retval = conn_opt_get(&coas, level, name, ptr);
1028 mutex_exit(&connp->conn_lock);
1029 WAKE_SCTP(sctp);
1030 if (retval == -1)
1031 return (EINVAL);
1032 *optlen = retval;
1033 return (0);
1034 }
1035
1036 int
1037 sctp_set_opt(sctp_t *sctp, int level, int name, const void *invalp,
1038 socklen_t inlen)
1039 {
1040 int *i1 = (int *)invalp;
1041 boolean_t onoff;
1042 int retval = 0, addrcnt;
1043 conn_t *connp = sctp->sctp_connp;
1044 sctp_stack_t *sctps = sctp->sctp_sctps;
1045 conn_opt_arg_t coas;
1046
1047 coas.coa_connp = connp;
1048 coas.coa_ixa = connp->conn_ixa;
1049 coas.coa_ipp = &connp->conn_xmit_ipp;
1050 coas.coa_ancillary = B_FALSE;
1051 coas.coa_changed = 0;
1052
1053 /* In all cases, the size of the option must be bigger than int */
1054 if (inlen >= sizeof (int32_t)) {
1055 onoff = ONOFF(*i1);
1056 }
1057 retval = 0;
1058
1059 RUN_SCTP(sctp);
1060
1061 if (connp->conn_state_flags & CONN_CLOSING) {
1062 WAKE_SCTP(sctp);
1063 return (EINVAL);
1064 }
1065
1066 /*
1067 * Check that the level and name are supported by SCTP, and that
1068 * the length an credentials are ok.
1069 */
1070 retval = proto_opt_check(level, name, inlen, NULL, sctp_opt_arr,
1071 sctp_opt_arr_size, B_TRUE, B_FALSE, connp->conn_cred);
1072 if (retval != 0) {
1073 if (retval < 0) {
1074 retval = proto_tlitosyserr(-retval);
1075 }
1076 goto done;
1077 }
1078
1079 /* Note: both SCTP and TCP interpret l_linger as being in seconds */
1080 switch (level) {
1081 case SOL_SOCKET:
1082 switch (name) {
1083 case SO_SNDBUF:
1084 if (*i1 > sctps->sctps_max_buf) {
1085 retval = ENOBUFS;
1086 goto done;
1087 }
1088 if (*i1 < 0) {
1089 retval = EINVAL;
1090 goto done;
1091 }
1092 connp->conn_sndbuf = *i1;
1093 if (sctps->sctps_snd_lowat_fraction != 0) {
1094 connp->conn_sndlowat = connp->conn_sndbuf /
1095 sctps->sctps_snd_lowat_fraction;
1096 }
1097 goto done;
1098 case SO_RCVBUF:
1099 if (*i1 > sctps->sctps_max_buf) {
1100 retval = ENOBUFS;
1101 goto done;
1102 }
1103 /* Silently ignore zero */
1104 if (*i1 != 0) {
1105 struct sock_proto_props sopp;
1106
1107 /*
1108 * Insist on a receive window that is at least
1109 * sctp_recv_hiwat_minmss * MSS (default 4*MSS)
1110 * to avoid funny interactions of Nagle
1111 * algorithm, SWS avoidance and delayed
1112 * acknowledgement.
1113 */
1114 *i1 = MAX(*i1,
1115 sctps->sctps_recv_hiwat_minmss *
1116 sctp->sctp_mss);
1117 /*
1118 * Note that sctp_rwnd is modified by the
1119 * protocol and here we just whack it.
1120 */
1121 connp->conn_rcvbuf = sctp->sctp_rwnd = *i1;
1122 sctp->sctp_arwnd = sctp->sctp_rwnd;
1123 sctp->sctp_pd_point = sctp->sctp_rwnd;
1124
1125 sopp.sopp_flags = SOCKOPT_RCVHIWAT;
1126 sopp.sopp_rxhiwat = connp->conn_rcvbuf;
1127 sctp->sctp_ulp_prop(sctp->sctp_ulpd, &sopp);
1128
1129 }
1130 /*
1131 * XXX should we return the rwnd here
1132 * and sctp_opt_get ?
1133 */
1134 goto done;
1135 case SO_ALLZONES:
1136 if (sctp->sctp_state >= SCTPS_BOUND) {
1137 retval = EINVAL;
1138 goto done;
1139 }
1140 break;
1141 case SO_MAC_EXEMPT:
1142 if (sctp->sctp_state >= SCTPS_BOUND) {
1143 retval = EINVAL;
1144 goto done;
1145 }
1146 break;
1147 }
1148 break;
1149
1150 case IPPROTO_SCTP:
1151 switch (name) {
1152 case SCTP_RTOINFO:
1153 retval = sctp_set_rtoinfo(sctp, invalp);
1154 break;
1155 case SCTP_ASSOCINFO:
1156 retval = sctp_set_assocparams(sctp, invalp);
1157 break;
1158 case SCTP_INITMSG:
1159 retval = sctp_set_initmsg(sctp, invalp, inlen);
1160 break;
1161 case SCTP_NODELAY:
1162 sctp->sctp_ndelay = ONOFF(*i1);
1163 break;
1164 case SCTP_AUTOCLOSE:
1165 if (SEC_TO_TICK(*i1) < 0) {
1166 retval = EINVAL;
1167 break;
1168 }
1169 /* Convert the number of seconds to ticks. */
1170 sctp->sctp_autoclose = SEC_TO_TICK(*i1);
1171 sctp_heartbeat_timer(sctp);
1172 break;
1173 case SCTP_SET_PEER_PRIMARY_ADDR:
1174 retval = sctp_set_peerprim(sctp, invalp);
1175 break;
1176 case SCTP_PRIMARY_ADDR:
1177 retval = sctp_set_prim(sctp, invalp);
1178 break;
1179 case SCTP_ADAPTATION_LAYER: {
1180 struct sctp_setadaptation *ssb;
1181
1182 ssb = (struct sctp_setadaptation *)invalp;
1183 sctp->sctp_send_adaptation = 1;
1184 sctp->sctp_tx_adaptation_code = ssb->ssb_adaptation_ind;
1185 break;
1186 }
1187 case SCTP_PEER_ADDR_PARAMS:
1188 retval = sctp_set_peer_addr_params(sctp, invalp);
1189 break;
1190 case SCTP_DEFAULT_SEND_PARAM:
1191 retval = sctp_set_def_send_params(sctp, invalp);
1192 break;
1193 case SCTP_EVENTS: {
1194 struct sctp_event_subscribe *ev;
1195
1196 ev = (struct sctp_event_subscribe *)invalp;
1197 sctp->sctp_recvsndrcvinfo =
1198 ONOFF(ev->sctp_data_io_event);
1199 sctp->sctp_recvassocevnt =
1200 ONOFF(ev->sctp_association_event);
1201 sctp->sctp_recvpathevnt =
1202 ONOFF(ev->sctp_address_event);
1203 sctp->sctp_recvsendfailevnt =
1204 ONOFF(ev->sctp_send_failure_event);
1205 sctp->sctp_recvpeererr =
1206 ONOFF(ev->sctp_peer_error_event);
1207 sctp->sctp_recvshutdownevnt =
1208 ONOFF(ev->sctp_shutdown_event);
1209 sctp->sctp_recvpdevnt =
1210 ONOFF(ev->sctp_partial_delivery_event);
1211 sctp->sctp_recvalevnt =
1212 ONOFF(ev->sctp_adaptation_layer_event);
1213 break;
1214 }
1215 case SCTP_ADD_ADDR:
1216 case SCTP_REM_ADDR:
1217 /*
1218 * The sctp_t has to be bound first before
1219 * the address list can be changed.
1220 */
1221 if (sctp->sctp_state < SCTPS_BOUND) {
1222 retval = EINVAL;
1223 break;
1224 }
1225 if (connp->conn_family == AF_INET) {
1226 addrcnt = inlen / sizeof (struct sockaddr_in);
1227 } else {
1228 ASSERT(connp->conn_family == AF_INET6);
1229 addrcnt = inlen / sizeof (struct sockaddr_in6);
1230 }
1231 if (name == SCTP_ADD_ADDR) {
1232 retval = sctp_bind_add(sctp, invalp, addrcnt,
1233 B_TRUE, connp->conn_lport);
1234 } else {
1235 retval = sctp_bind_del(sctp, invalp, addrcnt,
1236 B_TRUE);
1237 }
1238 break;
1239 case SCTP_UC_SWAP: {
1240 struct sctp_uc_swap *us;
1241
1242 /*
1243 * Change handle & upcalls.
1244 */
1245 us = (struct sctp_uc_swap *)invalp;
1246 sctp->sctp_ulpd = us->sus_handle;
1247 sctp->sctp_upcalls = us->sus_upcalls;
1248 break;
1249 }
1250 case SCTP_PRSCTP:
1251 sctp->sctp_prsctp_aware = onoff;
1252 break;
1253 case SCTP_I_WANT_MAPPED_V4_ADDR:
1254 case SCTP_MAXSEG:
1255 case SCTP_DISABLE_FRAGMENTS:
1256 /* Not yet supported. */
1257 retval = ENOPROTOOPT;
1258 break;
1259 }
1260 goto done;
1261
1262 case IPPROTO_IP:
1263 if (connp->conn_family != AF_INET) {
1264 retval = ENOPROTOOPT;
1265 goto done;
1266 }
1267 switch (name) {
1268 case IP_SEC_OPT:
1269 /*
1270 * We should not allow policy setting after
1271 * we start listening for connections.
1272 */
1273 if (sctp->sctp_state >= SCTPS_LISTEN) {
1274 retval = EINVAL;
1275 goto done;
1276 }
1277 break;
1278 }
1279 break;
1280 case IPPROTO_IPV6:
1281 if (connp->conn_family != AF_INET6) {
1282 retval = EINVAL;
1283 goto done;
1284 }
1285
1286 switch (name) {
1287 case IPV6_RECVPKTINFO:
1288 /* Send it with the next msg */
1289 sctp->sctp_recvifindex = 0;
1290 break;
1291 case IPV6_RECVTCLASS:
1292 /* Force it to be sent up with the next msg */
1293 sctp->sctp_recvtclass = 0xffffffffU;
1294 break;
1295 case IPV6_RECVHOPLIMIT:
1296 /* Force it to be sent up with the next msg */
1297 sctp->sctp_recvhops = 0xffffffffU;
1298 break;
1299 case IPV6_SEC_OPT:
1300 /*
1301 * We should not allow policy setting after
1302 * we start listening for connections.
1303 */
1304 if (sctp->sctp_state >= SCTPS_LISTEN) {
1305 retval = EINVAL;
1306 goto done;
1307 }
1308 break;
1309 case IPV6_V6ONLY:
1310 /*
1311 * After the bound state, setting the v6only option
1312 * is too late.
1313 */
1314 if (sctp->sctp_state >= SCTPS_BOUND) {
1315 retval = EINVAL;
1316 goto done;
1317 }
1318 break;
1319 }
1320 break;
1321 }
1322
1323 retval = conn_opt_set(&coas, level, name, inlen, (uchar_t *)invalp,
1324 B_FALSE, connp->conn_cred);
1325 if (retval != 0)
1326 goto done;
1327
1328 if (coas.coa_changed & COA_ROUTE_CHANGED) {
1329 sctp_faddr_t *fp;
1330 /*
1331 * We recache the information which might pick a different
1332 * source and redo IPsec as a result.
1333 */
1334 for (fp = sctp->sctp_faddrs; fp != NULL; fp = fp->sf_next)
1335 sctp_get_dest(sctp, fp);
1336 }
1337 if (coas.coa_changed & COA_HEADER_CHANGED) {
1338 retval = sctp_build_hdrs(sctp, KM_NOSLEEP);
1339 if (retval != 0)
1340 goto done;
1341 }
1342 if (coas.coa_changed & COA_WROFF_CHANGED) {
1343 connp->conn_wroff = connp->conn_ht_iphc_allocated +
1344 sctps->sctps_wroff_xtra;
1345 if (sctp->sctp_current != NULL) {
1346 /*
1347 * Could be setting options before setting up
1348 * connection.
1349 */
1350 sctp_set_ulp_prop(sctp);
1351 }
1352 }
1353 done:
1354 WAKE_SCTP(sctp);
1355 return (retval);
1356 }
1357
1358 /*
1359 * SCTP exported kernel interface for geting the first source address of
1360 * a sctp_t. The parameter addr is assumed to have enough space to hold
1361 * one socket address.
1362 */
1363 int
1364 sctp_getsockname(sctp_t *sctp, struct sockaddr *addr, socklen_t *addrlen)
1365 {
1366 int err = 0;
1367 int addrcnt = 1;
1368 sin_t *sin4;
1369 sin6_t *sin6;
1370 conn_t *connp = sctp->sctp_connp;
1371
1372 ASSERT(sctp != NULL);
1373
1374 RUN_SCTP(sctp);
1375 addr->sa_family = connp->conn_family;
1376 switch (connp->conn_family) {
1377 case AF_INET:
1378 sin4 = (sin_t *)addr;
1379 if ((sctp->sctp_state <= SCTPS_LISTEN) &&
1380 sctp->sctp_bound_to_all) {
1381 sin4->sin_addr.s_addr = INADDR_ANY;
1382 sin4->sin_port = connp->conn_lport;
1383 } else {
1384 err = sctp_getmyaddrs(sctp, sin4, &addrcnt);
1385 if (err != 0) {
1386 *addrlen = 0;
1387 break;
1388 }
1389 }
1390 *addrlen = sizeof (struct sockaddr_in);
1391 break;
1392 case AF_INET6:
1393 sin6 = (sin6_t *)addr;
1394 if ((sctp->sctp_state <= SCTPS_LISTEN) &&
1395 sctp->sctp_bound_to_all) {
1396 bzero(&sin6->sin6_addr, sizeof (sin6->sin6_addr));
1397 sin6->sin6_port = connp->conn_lport;
1398 } else {
1399 err = sctp_getmyaddrs(sctp, sin6, &addrcnt);
1400 if (err != 0) {
1401 *addrlen = 0;
1402 break;
1403 }
1404 }
1405 *addrlen = sizeof (struct sockaddr_in6);
1406 /* Note that flowinfo is only returned for getpeername */
1407 break;
1408 }
1409 WAKE_SCTP(sctp);
1410 return (err);
1411 }
1412
1413 /*
1414 * SCTP exported kernel interface for geting the primary peer address of
1415 * a sctp_t. The parameter addr is assumed to have enough space to hold
1416 * one socket address.
1417 */
1418 int
1419 sctp_getpeername(sctp_t *sctp, struct sockaddr *addr, socklen_t *addrlen)
1420 {
1421 int err = 0;
1422 int addrcnt = 1;
1423 sin6_t *sin6;
1424 conn_t *connp = sctp->sctp_connp;
1425
1426 ASSERT(sctp != NULL);
1427
1428 RUN_SCTP(sctp);
1429 addr->sa_family = connp->conn_family;
1430 switch (connp->conn_family) {
1431 case AF_INET:
1432 err = sctp_getpeeraddrs(sctp, addr, &addrcnt);
1433 if (err != 0) {
1434 *addrlen = 0;
1435 break;
1436 }
1437 *addrlen = sizeof (struct sockaddr_in);
1438 break;
1439 case AF_INET6:
1440 sin6 = (sin6_t *)addr;
1441 err = sctp_getpeeraddrs(sctp, sin6, &addrcnt);
1442 if (err != 0) {
1443 *addrlen = 0;
1444 break;
1445 }
1446 *addrlen = sizeof (struct sockaddr_in6);
1447 break;
1448 }
1449 WAKE_SCTP(sctp);
1450 return (err);
1451 }
1452
1453 /*
1454 * Return a list of IP addresses of the peer endpoint of this sctp_t.
1455 * The parameter paddrs is supposed to be either (struct sockaddr_in *) or
1456 * (struct sockaddr_in6 *) depending on the address family of the sctp_t.
1457 */
1458 int
1459 sctp_getpeeraddrs(sctp_t *sctp, void *paddrs, int *addrcnt)
1460 {
1461 int family;
1462 struct sockaddr_in *sin4;
1463 struct sockaddr_in6 *sin6;
1464 int max;
1465 int cnt;
1466 sctp_faddr_t *fp = sctp->sctp_faddrs;
1467 in6_addr_t addr;
1468 conn_t *connp = sctp->sctp_connp;
1469
1470 ASSERT(sctp != NULL);
1471
1472 if (sctp->sctp_faddrs == NULL)
1473 return (ENOTCONN);
1474
1475 family = connp->conn_family;
1476 max = *addrcnt;
1477
1478 /* If we want only one, give the primary */
1479 if (max == 1) {
1480 addr = sctp->sctp_primary->sf_faddr;
1481 switch (family) {
1482 case AF_INET:
1483 sin4 = paddrs;
1484 IN6_V4MAPPED_TO_INADDR(&addr, &sin4->sin_addr);
1485 sin4->sin_port = connp->conn_fport;
1486 sin4->sin_family = AF_INET;
1487 break;
1488
1489 case AF_INET6:
1490 sin6 = paddrs;
1491 sin6->sin6_addr = addr;
1492 sin6->sin6_port = connp->conn_fport;
1493 sin6->sin6_family = AF_INET6;
1494 sin6->sin6_flowinfo = connp->conn_flowinfo;
1495 if (IN6_IS_ADDR_LINKSCOPE(&addr) &&
1496 sctp->sctp_primary != NULL &&
1497 (sctp->sctp_primary->sf_ixa->ixa_flags &
1498 IXAF_SCOPEID_SET)) {
1499 sin6->sin6_scope_id =
1500 sctp->sctp_primary->sf_ixa->ixa_scopeid;
1501 } else {
1502 sin6->sin6_scope_id = 0;
1503 }
1504 sin6->__sin6_src_id = 0;
1505 break;
1506 }
1507 return (0);
1508 }
1509
1510 for (cnt = 0; cnt < max && fp != NULL; cnt++, fp = fp->sf_next) {
1511 addr = fp->sf_faddr;
1512 switch (family) {
1513 case AF_INET:
1514 ASSERT(IN6_IS_ADDR_V4MAPPED(&addr));
1515 sin4 = (struct sockaddr_in *)paddrs + cnt;
1516 IN6_V4MAPPED_TO_INADDR(&addr, &sin4->sin_addr);
1517 sin4->sin_port = connp->conn_fport;
1518 sin4->sin_family = AF_INET;
1519 break;
1520 case AF_INET6:
1521 sin6 = (struct sockaddr_in6 *)paddrs + cnt;
1522 sin6->sin6_addr = addr;
1523 sin6->sin6_port = connp->conn_fport;
1524 sin6->sin6_family = AF_INET6;
1525 sin6->sin6_flowinfo = connp->conn_flowinfo;
1526 if (IN6_IS_ADDR_LINKSCOPE(&addr) &&
1527 (fp->sf_ixa->ixa_flags & IXAF_SCOPEID_SET))
1528 sin6->sin6_scope_id = fp->sf_ixa->ixa_scopeid;
1529 else
1530 sin6->sin6_scope_id = 0;
1531 sin6->__sin6_src_id = 0;
1532 break;
1533 }
1534 }
1535 *addrcnt = cnt;
1536 return (0);
1537 }