2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
5 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
6 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
11 * a) Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
14 * b) Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the distribution.
18 * c) Neither the name of Cisco Systems, Inc. nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
24 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
45 #include <sys/types.h>
46 #include <sys/socket.h>
47 #include <sys/errno.h>
48 #include <sys/syscall.h>
50 #include <netinet/in.h>
51 #include <arpa/inet.h>
52 #include <netinet/sctp_uio.h>
53 #include <netinet/sctp.h>
55 #ifndef IN6_IS_ADDR_V4MAPPED
56 #define IN6_IS_ADDR_V4MAPPED(a) \
57 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
58 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
59 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
62 #define SCTP_CONTROL_VEC_SIZE_RCV 16384
66 in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6)
68 bzero(sin, sizeof(*sin));
69 sin->sin_len = sizeof(struct sockaddr_in);
70 sin->sin_family = AF_INET;
71 sin->sin_port = sin6->sin6_port;
72 sin->sin_addr.s_addr = sin6->sin6_addr.__u6_addr.__u6_addr32[3];
76 sctp_getaddrlen(sa_family_t family)
80 struct sctp_assoc_value av;
82 av.assoc_value = family;
85 sd = socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP);
86 #elif defined(AF_INET6)
87 sd = socket(AF_INET6, SOCK_SEQPACKET, IPPROTO_SCTP);
94 ret = getsockopt(sd, IPPROTO_SCTP, SCTP_GET_ADDR_LEN, &av, &siz);
97 return ((int)av.assoc_value);
104 sctp_connectx(int sd, const struct sockaddr *addrs, int addrcnt,
110 const struct sockaddr *at;
113 /* validate the address count and list */
114 if ((addrs == NULL) || (addrcnt <= 0)) {
118 if ((buf = malloc(sizeof(int) + (size_t)addrcnt * sizeof(struct sockaddr_in6))) == NULL) {
124 cpto = buf + sizeof(int);
125 /* validate all the addresses and get the size */
126 for (i = 0; i < addrcnt; i++) {
127 switch (at->sa_family) {
129 if (at->sa_len != sizeof(struct sockaddr_in)) {
134 memcpy(cpto, at, sizeof(struct sockaddr_in));
135 cpto = ((caddr_t)cpto + sizeof(struct sockaddr_in));
136 len += sizeof(struct sockaddr_in);
139 if (at->sa_len != sizeof(struct sockaddr_in6)) {
144 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)at)->sin6_addr)) {
145 in6_sin6_2_sin((struct sockaddr_in *)cpto, (struct sockaddr_in6 *)at);
146 cpto = ((caddr_t)cpto + sizeof(struct sockaddr_in));
147 len += sizeof(struct sockaddr_in);
149 memcpy(cpto, at, sizeof(struct sockaddr_in6));
150 cpto = ((caddr_t)cpto + sizeof(struct sockaddr_in6));
151 len += sizeof(struct sockaddr_in6);
159 at = (struct sockaddr *)((caddr_t)at + at->sa_len);
163 ret = setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X, (void *)buf,
165 if ((ret == 0) && (id != NULL)) {
166 *id = *(sctp_assoc_t *)buf;
173 sctp_bindx(int sd, struct sockaddr *addrs, int addrcnt, int flags)
176 struct sockaddr_in *sin;
177 struct sockaddr_in6 *sin6;
182 /* validate the flags */
183 if ((flags != SCTP_BINDX_ADD_ADDR) &&
184 (flags != SCTP_BINDX_REM_ADDR)) {
188 /* validate the address count and list */
189 if ((addrcnt <= 0) || (addrs == NULL)) {
195 /* First pre-screen the addresses */
197 for (i = 0; i < addrcnt; i++) {
198 switch (sa->sa_family) {
200 if (sa->sa_len != sizeof(struct sockaddr_in)) {
204 sin = (struct sockaddr_in *)sa;
206 /* non-zero port, check or save */
208 /* Check against our port */
209 if (sport != sin->sin_port) {
214 /* save off the port */
215 sport = sin->sin_port;
221 if (sa->sa_len != sizeof(struct sockaddr_in6)) {
225 sin6 = (struct sockaddr_in6 *)sa;
226 if (sin6->sin6_port) {
227 /* non-zero port, check or save */
229 /* Check against our port */
230 if (sport != sin6->sin6_port) {
235 /* save off the port */
236 sport = sin6->sin6_port;
242 /* Invalid address family specified. */
243 errno = EAFNOSUPPORT;
246 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
249 for (i = 0; i < addrcnt; i++) {
251 * Now, if there was a port mentioned, assure that the first
252 * address has that port to make sure it fails or succeeds
256 switch (sa->sa_family) {
258 ((struct sockaddr_in *)sa)->sin_port = sport;
261 ((struct sockaddr_in6 *)sa)->sin6_port = sport;
266 if (setsockopt(sd, IPPROTO_SCTP, flags, sa, sa->sa_len) != 0) {
269 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
275 sctp_opt_info(int sd, sctp_assoc_t id, int opt, void *arg, socklen_t *size)
281 if ((id == SCTP_CURRENT_ASSOC) ||
282 (id == SCTP_ALL_ASSOC)) {
288 ((struct sctp_rtoinfo *)arg)->srto_assoc_id = id;
291 ((struct sctp_assocparams *)arg)->sasoc_assoc_id = id;
293 case SCTP_DEFAULT_SEND_PARAM:
294 ((struct sctp_assocparams *)arg)->sasoc_assoc_id = id;
296 case SCTP_PRIMARY_ADDR:
297 ((struct sctp_setprim *)arg)->ssp_assoc_id = id;
299 case SCTP_PEER_ADDR_PARAMS:
300 ((struct sctp_paddrparams *)arg)->spp_assoc_id = id;
303 ((struct sctp_assoc_value *)arg)->assoc_id = id;
306 ((struct sctp_authkey *)arg)->sca_assoc_id = id;
308 case SCTP_AUTH_ACTIVE_KEY:
309 ((struct sctp_authkeyid *)arg)->scact_assoc_id = id;
311 case SCTP_DELAYED_SACK:
312 ((struct sctp_sack_info *)arg)->sack_assoc_id = id;
315 ((struct sctp_assoc_value *)arg)->assoc_id = id;
318 ((struct sctp_status *)arg)->sstat_assoc_id = id;
320 case SCTP_GET_PEER_ADDR_INFO:
321 ((struct sctp_paddrinfo *)arg)->spinfo_assoc_id = id;
323 case SCTP_PEER_AUTH_CHUNKS:
324 ((struct sctp_authchunks *)arg)->gauth_assoc_id = id;
326 case SCTP_LOCAL_AUTH_CHUNKS:
327 ((struct sctp_authchunks *)arg)->gauth_assoc_id = id;
330 ((struct sctp_timeouts *)arg)->stimo_assoc_id = id;
333 ((struct sctp_event *)arg)->se_assoc_id = id;
335 case SCTP_DEFAULT_SNDINFO:
336 ((struct sctp_sndinfo *)arg)->snd_assoc_id = id;
338 case SCTP_DEFAULT_PRINFO:
339 ((struct sctp_default_prinfo *)arg)->pr_assoc_id = id;
341 case SCTP_PEER_ADDR_THLDS:
342 ((struct sctp_paddrthlds *)arg)->spt_assoc_id = id;
344 case SCTP_REMOTE_UDP_ENCAPS_PORT:
345 ((struct sctp_udpencaps *)arg)->sue_assoc_id = id;
347 case SCTP_ECN_SUPPORTED:
348 ((struct sctp_assoc_value *)arg)->assoc_id = id;
350 case SCTP_PR_SUPPORTED:
351 ((struct sctp_assoc_value *)arg)->assoc_id = id;
353 case SCTP_AUTH_SUPPORTED:
354 ((struct sctp_assoc_value *)arg)->assoc_id = id;
356 case SCTP_ASCONF_SUPPORTED:
357 ((struct sctp_assoc_value *)arg)->assoc_id = id;
359 case SCTP_RECONFIG_SUPPORTED:
360 ((struct sctp_assoc_value *)arg)->assoc_id = id;
362 case SCTP_NRSACK_SUPPORTED:
363 ((struct sctp_assoc_value *)arg)->assoc_id = id;
365 case SCTP_PKTDROP_SUPPORTED:
366 ((struct sctp_assoc_value *)arg)->assoc_id = id;
369 ((struct sctp_assoc_value *)arg)->assoc_id = id;
371 case SCTP_ENABLE_STREAM_RESET:
372 ((struct sctp_assoc_value *)arg)->assoc_id = id;
374 case SCTP_PR_STREAM_STATUS:
375 ((struct sctp_prstatus *)arg)->sprstat_assoc_id = id;
377 case SCTP_PR_ASSOC_STATUS:
378 ((struct sctp_prstatus *)arg)->sprstat_assoc_id = id;
381 ((struct sctp_assoc_value *)arg)->assoc_id = id;
386 return (getsockopt(sd, IPPROTO_SCTP, opt, arg, size));
390 sctp_getpaddrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
392 struct sctp_getaddresses *addrs;
396 uint32_t size_of_addresses;
399 if (raddrs == NULL) {
403 /* When calling getsockopt(), the value contains the assoc_id. */
404 size_of_addresses = (uint32_t)id;
405 opt_len = (socklen_t)sizeof(uint32_t);
406 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_REMOTE_ADDR_SIZE,
407 &size_of_addresses, &opt_len) != 0) {
408 if (errno == ENOENT) {
414 opt_len = (socklen_t)((size_t)size_of_addresses + sizeof(struct sctp_getaddresses));
415 addrs = calloc(1, (size_t)opt_len);
420 addrs->sget_assoc_id = id;
421 /* Now lets get the array of addresses */
422 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_PEER_ADDRESSES,
423 addrs, &opt_len) != 0) {
427 *raddrs = &addrs->addr[0].sa;
429 sa = &addrs->addr[0].sa;
430 lim = (caddr_t)addrs + opt_len;
431 while (((caddr_t)sa < lim) && (sa->sa_len > 0)) {
432 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
439 sctp_freepaddrs(struct sockaddr *addrs)
443 /* Take away the hidden association id */
444 fr_addr = (void *)((caddr_t)addrs - offsetof(struct sctp_getaddresses, addr));
450 sctp_getladdrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
452 struct sctp_getaddresses *addrs;
456 uint32_t size_of_addresses;
459 if (raddrs == NULL) {
463 size_of_addresses = 0;
464 opt_len = (socklen_t)sizeof(uint32_t);
465 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_LOCAL_ADDR_SIZE,
466 &size_of_addresses, &opt_len) != 0) {
469 opt_len = (socklen_t)((size_t)size_of_addresses + sizeof(struct sctp_getaddresses));
470 addrs = calloc(1, (size_t)opt_len);
475 addrs->sget_assoc_id = id;
476 /* Now lets get the array of addresses */
477 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_LOCAL_ADDRESSES, addrs,
482 if (size_of_addresses == 0) {
486 *raddrs = &addrs->addr[0].sa;
488 sa = &addrs->addr[0].sa;
489 lim = (caddr_t)addrs + opt_len;
490 while (((caddr_t)sa < lim) && (sa->sa_len > 0)) {
491 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
498 sctp_freeladdrs(struct sockaddr *addrs)
502 /* Take away the hidden association id */
503 fr_addr = (void *)((caddr_t)addrs - offsetof(struct sctp_getaddresses, addr));
512 const struct sockaddr *to,
520 #ifdef SYS_sctp_generic_sendmsg
521 struct sctp_sndrcvinfo sinfo;
523 memset(&sinfo, 0, sizeof(struct sctp_sndrcvinfo));
524 sinfo.sinfo_ppid = ppid;
525 sinfo.sinfo_flags = flags;
526 sinfo.sinfo_stream = stream_no;
527 sinfo.sinfo_timetolive = timetolive;
528 sinfo.sinfo_context = context;
529 sinfo.sinfo_assoc_id = 0;
530 return (syscall(SYS_sctp_generic_sendmsg, s,
531 data, len, to, tolen, &sinfo, 0));
534 struct sctp_sndrcvinfo *sinfo;
536 char cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
537 struct cmsghdr *cmsg;
538 struct sockaddr *who = NULL;
540 struct sockaddr_in in;
541 struct sockaddr_in6 in6;
545 ((to == NULL) || (tolen < sizeof(struct sockaddr)))) {
549 if ((to != NULL) && (tolen > 0)) {
550 switch (to->sa_family) {
552 if (tolen != sizeof(struct sockaddr_in)) {
556 if ((to->sa_len > 0) &&
557 (to->sa_len != sizeof(struct sockaddr_in))) {
561 memcpy(&addr, to, sizeof(struct sockaddr_in));
562 addr.in.sin_len = sizeof(struct sockaddr_in);
565 if (tolen != sizeof(struct sockaddr_in6)) {
569 if ((to->sa_len > 0) &&
570 (to->sa_len != sizeof(struct sockaddr_in6))) {
574 memcpy(&addr, to, sizeof(struct sockaddr_in6));
575 addr.in6.sin6_len = sizeof(struct sockaddr_in6);
578 errno = EAFNOSUPPORT;
581 who = (struct sockaddr *)&addr;
584 iov.iov_base = (char *)data;
588 msg.msg_name = (caddr_t)who;
589 msg.msg_namelen = who->sa_len;
591 msg.msg_name = (caddr_t)NULL;
596 msg.msg_control = cmsgbuf;
597 msg.msg_controllen = CMSG_SPACE(sizeof(struct sctp_sndrcvinfo));
599 cmsg = (struct cmsghdr *)cmsgbuf;
600 cmsg->cmsg_level = IPPROTO_SCTP;
601 cmsg->cmsg_type = SCTP_SNDRCV;
602 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
603 sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
604 memset(sinfo, 0, sizeof(struct sctp_sndrcvinfo));
605 sinfo->sinfo_stream = stream_no;
606 sinfo->sinfo_ssn = 0;
607 sinfo->sinfo_flags = flags;
608 sinfo->sinfo_ppid = ppid;
609 sinfo->sinfo_context = context;
610 sinfo->sinfo_assoc_id = 0;
611 sinfo->sinfo_timetolive = timetolive;
612 return (sendmsg(s, &msg, 0));
618 sctp_getassocid(int sd, struct sockaddr *sa)
620 struct sctp_paddrinfo sp;
623 /* First get the assoc id */
625 memset(&sp, 0, sizeof(sp));
626 memcpy((caddr_t)&sp.spinfo_address, sa, sa->sa_len);
627 if (getsockopt(sd, IPPROTO_SCTP,
628 SCTP_GET_PEER_ADDR_INFO, &sp, &siz) != 0) {
629 /* We depend on the fact that 0 can never be returned */
630 return ((sctp_assoc_t)0);
632 return (sp.spinfo_assoc_id);
636 sctp_send(int sd, const void *data, size_t len,
637 const struct sctp_sndrcvinfo *sinfo,
641 #ifdef SYS_sctp_generic_sendmsg
642 struct sockaddr *to = NULL;
644 return (syscall(SYS_sctp_generic_sendmsg, sd,
645 data, len, to, 0, sinfo, flags));
649 char cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
650 struct cmsghdr *cmsg;
656 iov.iov_base = (char *)data;
663 msg.msg_control = cmsgbuf;
664 msg.msg_controllen = CMSG_SPACE(sizeof(struct sctp_sndrcvinfo));
666 cmsg = (struct cmsghdr *)cmsgbuf;
667 cmsg->cmsg_level = IPPROTO_SCTP;
668 cmsg->cmsg_type = SCTP_SNDRCV;
669 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
670 memcpy(CMSG_DATA(cmsg), sinfo, sizeof(struct sctp_sndrcvinfo));
671 return (sendmsg(sd, &msg, flags));
678 sctp_sendx(int sd, const void *msg, size_t msg_len,
679 struct sockaddr *addrs, int addrcnt,
680 struct sctp_sndrcvinfo *sinfo,
683 struct sctp_sndrcvinfo __sinfo;
685 int i, cnt, *aa, saved_errno;
695 #ifdef SYS_sctp_generic_sendmsg
701 * Quick way, we don't need to do a connectx so lets use the
705 ret = syscall(SYS_sctp_generic_sendmsg, sd,
706 msg, msg_len, addrs, l, sinfo, flags);
707 if ((ret >= 0) && (sinfo != NULL)) {
708 sinfo->sinfo_assoc_id = sctp_getassocid(sd, addrs);
717 /* validate all the addresses and get the size */
718 for (i = 0; i < addrcnt; i++) {
719 if (at->sa_family == AF_INET) {
720 add_len = sizeof(struct sockaddr_in);
721 } else if (at->sa_family == AF_INET6) {
722 add_len = sizeof(struct sockaddr_in6);
728 at = (struct sockaddr *)((caddr_t)at + add_len);
731 /* do we have any? */
744 memcpy((caddr_t)aa, addrs, (size_t)(len - sizeof(int)));
745 ret = setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_DELAYED, (void *)buf,
750 if (errno == EALREADY) {
759 memset(&__sinfo, 0, sizeof(__sinfo));
761 sinfo->sinfo_assoc_id = sctp_getassocid(sd, addrs);
762 if (sinfo->sinfo_assoc_id == 0) {
763 (void)setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_COMPLETE, (void *)addrs,
764 (socklen_t)addrs->sa_len);
768 ret = sctp_send(sd, msg, msg_len, sinfo, flags);
771 (void)setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_COMPLETE, (void *)addrs,
772 (socklen_t)addrs->sa_len);
779 sctp_sendmsgx(int sd,
782 struct sockaddr *addrs,
790 struct sctp_sndrcvinfo sinfo;
792 memset((void *)&sinfo, 0, sizeof(struct sctp_sndrcvinfo));
793 sinfo.sinfo_ppid = ppid;
794 sinfo.sinfo_flags = flags;
795 sinfo.sinfo_stream = stream_no;
796 sinfo.sinfo_timetolive = timetolive;
797 sinfo.sinfo_context = context;
798 return (sctp_sendx(sd, msg, len, addrs, addrcnt, &sinfo, 0));
805 struct sockaddr *from,
807 struct sctp_sndrcvinfo *sinfo,
810 #ifdef SYS_sctp_generic_recvmsg
815 return (syscall(SYS_sctp_generic_recvmsg, s,
816 &iov, 1, from, fromlen, sinfo, msg_flags));
821 char cmsgbuf[SCTP_CONTROL_VEC_SIZE_RCV];
822 struct cmsghdr *cmsg;
824 if (msg_flags == NULL) {
830 msg.msg_name = (caddr_t)from;
834 msg.msg_namelen = *fromlen;
837 msg.msg_control = cmsgbuf;
838 msg.msg_controllen = sizeof(cmsgbuf);
840 sz = recvmsg(s, &msg, *msg_flags);
841 *msg_flags = msg.msg_flags;
846 sinfo->sinfo_assoc_id = 0;
848 if ((msg.msg_controllen > 0) && (sinfo != NULL)) {
850 * parse through and see if we find the sctp_sndrcvinfo (if
851 * the user wants it).
853 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
854 if (cmsg->cmsg_level != IPPROTO_SCTP) {
857 if (cmsg->cmsg_type == SCTP_SNDRCV) {
858 memcpy(sinfo, CMSG_DATA(cmsg), sizeof(struct sctp_sndrcvinfo));
861 if (cmsg->cmsg_type == SCTP_EXTRCV) {
863 * Let's hope that the user provided enough
864 * enough memory. At least he asked for more
867 memcpy(sinfo, CMSG_DATA(cmsg), sizeof(struct sctp_extrcvinfo));
878 const struct iovec *iov,
880 struct sockaddr *from,
884 unsigned int *infotype,
887 char cmsgbuf[SCTP_CONTROL_VEC_SIZE_RCV];
889 struct cmsghdr *cmsg;
891 struct sctp_rcvinfo *rcvinfo;
892 struct sctp_nxtinfo *nxtinfo;
894 if (((info != NULL) && (infolen == NULL)) ||
895 ((info == NULL) && (infolen != NULL) && (*infolen != 0)) ||
896 ((info != NULL) && (infotype == NULL))) {
901 *infotype = SCTP_RECVV_NOINFO;
904 if (fromlen == NULL) {
907 msg.msg_namelen = *fromlen;
909 msg.msg_iov = (struct iovec *)iov;
910 msg.msg_iovlen = iovlen;
911 msg.msg_control = cmsgbuf;
912 msg.msg_controllen = sizeof(cmsgbuf);
914 ret = recvmsg(sd, &msg, *flags);
915 *flags = msg.msg_flags;
917 (msg.msg_controllen > 0) &&
918 (infotype != NULL) &&
923 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
924 if (cmsg->cmsg_level != IPPROTO_SCTP) {
927 if (cmsg->cmsg_type == SCTP_RCVINFO) {
928 rcvinfo = (struct sctp_rcvinfo *)CMSG_DATA(cmsg);
929 if (nxtinfo != NULL) {
935 if (cmsg->cmsg_type == SCTP_NXTINFO) {
936 nxtinfo = (struct sctp_nxtinfo *)CMSG_DATA(cmsg);
937 if (rcvinfo != NULL) {
944 if (rcvinfo != NULL) {
945 if ((nxtinfo != NULL) && (*infolen >= sizeof(struct sctp_recvv_rn))) {
946 struct sctp_recvv_rn *rn_info;
948 rn_info = (struct sctp_recvv_rn *)info;
949 rn_info->recvv_rcvinfo = *rcvinfo;
950 rn_info->recvv_nxtinfo = *nxtinfo;
951 *infolen = (socklen_t)sizeof(struct sctp_recvv_rn);
952 *infotype = SCTP_RECVV_RN;
953 } else if (*infolen >= sizeof(struct sctp_rcvinfo)) {
954 memcpy(info, rcvinfo, sizeof(struct sctp_rcvinfo));
955 *infolen = (socklen_t)sizeof(struct sctp_rcvinfo);
956 *infotype = SCTP_RECVV_RCVINFO;
958 } else if (nxtinfo != NULL) {
959 if (*infolen >= sizeof(struct sctp_nxtinfo)) {
960 memcpy(info, nxtinfo, sizeof(struct sctp_nxtinfo));
961 *infolen = (socklen_t)sizeof(struct sctp_nxtinfo);
962 *infotype = SCTP_RECVV_NXTINFO;
971 const struct iovec *iov, int iovcnt,
972 struct sockaddr *addrs, int addrcnt,
973 void *info, socklen_t infolen, unsigned int infotype,
981 struct sctp_sendv_spa *spa_info;
982 struct cmsghdr *cmsg;
984 struct sockaddr *addr;
985 struct sockaddr_in *addr_in;
986 struct sockaddr_in6 *addr_in6;
987 sctp_assoc_t *assoc_id;
991 ((addrs == NULL) && (addrcnt > 0)) ||
992 ((addrs != NULL) && (addrcnt == 0)) ||
993 ((iov == NULL) && (iovcnt > 0)) ||
994 ((iov != NULL) && (iovcnt == 0))) {
998 cmsgbuf = malloc(CMSG_SPACE(sizeof(struct sctp_sndinfo)) +
999 CMSG_SPACE(sizeof(struct sctp_prinfo)) +
1000 CMSG_SPACE(sizeof(struct sctp_authinfo)) +
1001 (size_t)addrcnt * CMSG_SPACE(sizeof(struct in6_addr)));
1002 if (cmsgbuf == NULL) {
1007 msg.msg_control = cmsgbuf;
1008 msg.msg_controllen = 0;
1009 cmsg = (struct cmsghdr *)cmsgbuf;
1011 case SCTP_SENDV_NOINFO:
1012 if ((infolen != 0) || (info != NULL)) {
1018 case SCTP_SENDV_SNDINFO:
1019 if ((info == NULL) || (infolen < sizeof(struct sctp_sndinfo))) {
1024 cmsg->cmsg_level = IPPROTO_SCTP;
1025 cmsg->cmsg_type = SCTP_SNDINFO;
1026 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndinfo));
1027 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_sndinfo));
1028 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_sndinfo));
1029 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_sndinfo)));
1030 assoc_id = &(((struct sctp_sndinfo *)info)->snd_assoc_id);
1032 case SCTP_SENDV_PRINFO:
1033 if ((info == NULL) || (infolen < sizeof(struct sctp_prinfo))) {
1038 cmsg->cmsg_level = IPPROTO_SCTP;
1039 cmsg->cmsg_type = SCTP_PRINFO;
1040 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_prinfo));
1041 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_prinfo));
1042 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_prinfo));
1043 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_prinfo)));
1045 case SCTP_SENDV_AUTHINFO:
1046 if ((info == NULL) || (infolen < sizeof(struct sctp_authinfo))) {
1051 cmsg->cmsg_level = IPPROTO_SCTP;
1052 cmsg->cmsg_type = SCTP_AUTHINFO;
1053 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_authinfo));
1054 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_authinfo));
1055 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_authinfo));
1056 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_authinfo)));
1058 case SCTP_SENDV_SPA:
1059 if ((info == NULL) || (infolen < sizeof(struct sctp_sendv_spa))) {
1064 spa_info = (struct sctp_sendv_spa *)info;
1065 if (spa_info->sendv_flags & SCTP_SEND_SNDINFO_VALID) {
1066 cmsg->cmsg_level = IPPROTO_SCTP;
1067 cmsg->cmsg_type = SCTP_SNDINFO;
1068 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndinfo));
1069 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_sndinfo, sizeof(struct sctp_sndinfo));
1070 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_sndinfo));
1071 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_sndinfo)));
1072 assoc_id = &(spa_info->sendv_sndinfo.snd_assoc_id);
1074 if (spa_info->sendv_flags & SCTP_SEND_PRINFO_VALID) {
1075 cmsg->cmsg_level = IPPROTO_SCTP;
1076 cmsg->cmsg_type = SCTP_PRINFO;
1077 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_prinfo));
1078 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_prinfo, sizeof(struct sctp_prinfo));
1079 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_prinfo));
1080 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_prinfo)));
1082 if (spa_info->sendv_flags & SCTP_SEND_AUTHINFO_VALID) {
1083 cmsg->cmsg_level = IPPROTO_SCTP;
1084 cmsg->cmsg_type = SCTP_AUTHINFO;
1085 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_authinfo));
1086 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_authinfo, sizeof(struct sctp_authinfo));
1087 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_authinfo));
1088 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_authinfo)));
1097 msg.msg_name = NULL;
1098 msg.msg_namelen = 0;
1100 for (i = 0; i < addrcnt; i++) {
1101 switch (addr->sa_family) {
1103 addr_len = (socklen_t)sizeof(struct sockaddr_in);
1104 addr_in = (struct sockaddr_in *)addr;
1105 if (addr_in->sin_len != addr_len) {
1111 port = addr_in->sin_port;
1113 if (port == addr_in->sin_port) {
1114 cmsg->cmsg_level = IPPROTO_SCTP;
1115 cmsg->cmsg_type = SCTP_DSTADDRV4;
1116 cmsg->cmsg_len = CMSG_LEN(sizeof(struct in_addr));
1117 memcpy(CMSG_DATA(cmsg), &addr_in->sin_addr, sizeof(struct in_addr));
1118 msg.msg_controllen += CMSG_SPACE(sizeof(struct in_addr));
1119 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct in_addr)));
1128 addr_len = (socklen_t)sizeof(struct sockaddr_in6);
1129 addr_in6 = (struct sockaddr_in6 *)addr;
1130 if (addr_in6->sin6_len != addr_len) {
1136 port = addr_in6->sin6_port;
1138 if (port == addr_in6->sin6_port) {
1139 cmsg->cmsg_level = IPPROTO_SCTP;
1140 cmsg->cmsg_type = SCTP_DSTADDRV6;
1141 cmsg->cmsg_len = CMSG_LEN(sizeof(struct in6_addr));
1142 memcpy(CMSG_DATA(cmsg), &addr_in6->sin6_addr, sizeof(struct in6_addr));
1143 msg.msg_controllen += CMSG_SPACE(sizeof(struct in6_addr));
1144 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct in6_addr)));
1158 msg.msg_name = addr;
1159 msg.msg_namelen = addr_len;
1161 addr = (struct sockaddr *)((caddr_t)addr + addr_len);
1163 if (msg.msg_controllen == 0) {
1164 msg.msg_control = NULL;
1166 msg.msg_iov = (struct iovec *)iov;
1167 msg.msg_iovlen = iovcnt;
1169 ret = sendmsg(sd, &msg, flags);
1171 if ((ret >= 0) && (addrs != NULL) && (assoc_id != NULL)) {
1172 *assoc_id = sctp_getassocid(sd, addrs);
1178 #if !defined(SYS_sctp_peeloff) && !defined(HAVE_SCTP_PEELOFF_SOCKOPT)
1181 sctp_peeloff(int sd, sctp_assoc_t assoc_id)
1183 /* NOT supported, return invalid sd */
1189 #if defined(SYS_sctp_peeloff) && !defined(HAVE_SCTP_PEELOFF_SOCKOPT)
1191 sctp_peeloff(int sd, sctp_assoc_t assoc_id)
1193 return (syscall(SYS_sctp_peeloff, sd, assoc_id));
1198 #undef SCTP_CONTROL_VEC_SIZE_RCV