2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
4 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
9 * a) Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
12 * b) Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the distribution.
16 * c) Neither the name of Cisco Systems, Inc. nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
41 #include <sys/types.h>
42 #include <sys/socket.h>
43 #include <sys/errno.h>
44 #include <sys/syscall.h>
46 #include <netinet/in.h>
47 #include <arpa/inet.h>
48 #include <netinet/sctp_uio.h>
49 #include <netinet/sctp.h>
51 #ifndef IN6_IS_ADDR_V4MAPPED
52 #define IN6_IS_ADDR_V4MAPPED(a) \
53 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
54 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
55 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
58 #define SCTP_CONTROL_VEC_SIZE_RCV 16384
62 in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6)
64 bzero(sin, sizeof(*sin));
65 sin->sin_len = sizeof(struct sockaddr_in);
66 sin->sin_family = AF_INET;
67 sin->sin_port = sin6->sin6_port;
68 sin->sin_addr.s_addr = sin6->sin6_addr.__u6_addr.__u6_addr32[3];
72 sctp_getaddrlen(sa_family_t family)
76 struct sctp_assoc_value av;
78 av.assoc_value = family;
81 sd = socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP);
82 #elif defined(AF_INET6)
83 sd = socket(AF_INET6, SOCK_SEQPACKET, IPPROTO_SCTP);
90 ret = getsockopt(sd, IPPROTO_SCTP, SCTP_GET_ADDR_LEN, &av, &siz);
93 return ((int)av.assoc_value);
100 sctp_connectx(int sd, const struct sockaddr *addrs, int addrcnt,
106 const struct sockaddr *at;
109 /* validate the address count and list */
110 if ((addrs == NULL) || (addrcnt <= 0)) {
114 if ((buf = malloc(sizeof(int) + (size_t)addrcnt * sizeof(struct sockaddr_in6))) == NULL) {
120 cpto = buf + sizeof(int);
121 /* validate all the addresses and get the size */
122 for (i = 0; i < addrcnt; i++) {
123 switch (at->sa_family) {
125 if (at->sa_len != sizeof(struct sockaddr_in)) {
130 memcpy(cpto, at, sizeof(struct sockaddr_in));
131 cpto = ((caddr_t)cpto + sizeof(struct sockaddr_in));
132 len += sizeof(struct sockaddr_in);
135 if (at->sa_len != sizeof(struct sockaddr_in6)) {
140 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)at)->sin6_addr)) {
141 in6_sin6_2_sin((struct sockaddr_in *)cpto, (struct sockaddr_in6 *)at);
142 cpto = ((caddr_t)cpto + sizeof(struct sockaddr_in));
143 len += sizeof(struct sockaddr_in);
145 memcpy(cpto, at, sizeof(struct sockaddr_in6));
146 cpto = ((caddr_t)cpto + sizeof(struct sockaddr_in6));
147 len += sizeof(struct sockaddr_in6);
155 at = (struct sockaddr *)((caddr_t)at + at->sa_len);
159 ret = setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X, (void *)buf,
161 if ((ret == 0) && (id != NULL)) {
162 *id = *(sctp_assoc_t *) buf;
169 sctp_bindx(int sd, struct sockaddr *addrs, int addrcnt, int flags)
171 struct sctp_getaddresses *gaddrs;
173 struct sockaddr_in *sin;
174 struct sockaddr_in6 *sin6;
179 /* validate the flags */
180 if ((flags != SCTP_BINDX_ADD_ADDR) &&
181 (flags != SCTP_BINDX_REM_ADDR)) {
185 /* validate the address count and list */
186 if ((addrcnt <= 0) || (addrs == NULL)) {
190 /* First pre-screen the addresses */
192 for (i = 0; i < addrcnt; i++) {
193 switch (sa->sa_family) {
195 if (sa->sa_len != sizeof(struct sockaddr_in)) {
199 sin = (struct sockaddr_in *)sa;
201 /* non-zero port, check or save */
203 /* Check against our port */
204 if (sport != sin->sin_port) {
209 /* save off the port */
210 sport = sin->sin_port;
215 if (sa->sa_len != sizeof(struct sockaddr_in6)) {
219 sin6 = (struct sockaddr_in6 *)sa;
220 if (sin6->sin6_port) {
221 /* non-zero port, check or save */
223 /* Check against our port */
224 if (sport != sin6->sin6_port) {
229 /* save off the port */
230 sport = sin6->sin6_port;
235 /* Invalid address family specified. */
236 errno = EAFNOSUPPORT;
239 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
241 argsz = sizeof(struct sctp_getaddresses) +
242 sizeof(struct sockaddr_storage);
243 if ((gaddrs = (struct sctp_getaddresses *)malloc(argsz)) == NULL) {
248 for (i = 0; i < addrcnt; i++) {
249 memset(gaddrs, 0, argsz);
250 gaddrs->sget_assoc_id = 0;
251 memcpy(gaddrs->addr, sa, sa->sa_len);
253 * Now, if there was a port mentioned, assure that the first
254 * address has that port to make sure it fails or succeeds
257 if ((i == 0) && (sport != 0)) {
258 switch (gaddrs->addr->sa_family) {
260 sin = (struct sockaddr_in *)gaddrs->addr;
261 sin->sin_port = sport;
264 sin6 = (struct sockaddr_in6 *)gaddrs->addr;
265 sin6->sin6_port = sport;
269 if (setsockopt(sd, IPPROTO_SCTP, flags, gaddrs,
270 (socklen_t) argsz) != 0) {
274 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
281 sctp_opt_info(int sd, sctp_assoc_t id, int opt, void *arg, socklen_t * size)
287 if ((id == SCTP_CURRENT_ASSOC) ||
288 (id == SCTP_ALL_ASSOC)) {
294 ((struct sctp_rtoinfo *)arg)->srto_assoc_id = id;
297 ((struct sctp_assocparams *)arg)->sasoc_assoc_id = id;
299 case SCTP_DEFAULT_SEND_PARAM:
300 ((struct sctp_assocparams *)arg)->sasoc_assoc_id = id;
302 case SCTP_PRIMARY_ADDR:
303 ((struct sctp_setprim *)arg)->ssp_assoc_id = id;
305 case SCTP_PEER_ADDR_PARAMS:
306 ((struct sctp_paddrparams *)arg)->spp_assoc_id = id;
309 ((struct sctp_assoc_value *)arg)->assoc_id = id;
312 ((struct sctp_authkey *)arg)->sca_assoc_id = id;
314 case SCTP_AUTH_ACTIVE_KEY:
315 ((struct sctp_authkeyid *)arg)->scact_assoc_id = id;
317 case SCTP_DELAYED_SACK:
318 ((struct sctp_sack_info *)arg)->sack_assoc_id = id;
321 ((struct sctp_assoc_value *)arg)->assoc_id = id;
324 ((struct sctp_status *)arg)->sstat_assoc_id = id;
326 case SCTP_GET_PEER_ADDR_INFO:
327 ((struct sctp_paddrinfo *)arg)->spinfo_assoc_id = id;
329 case SCTP_PEER_AUTH_CHUNKS:
330 ((struct sctp_authchunks *)arg)->gauth_assoc_id = id;
332 case SCTP_LOCAL_AUTH_CHUNKS:
333 ((struct sctp_authchunks *)arg)->gauth_assoc_id = id;
336 ((struct sctp_timeouts *)arg)->stimo_assoc_id = id;
339 ((struct sctp_event *)arg)->se_assoc_id = id;
341 case SCTP_DEFAULT_SNDINFO:
342 ((struct sctp_sndinfo *)arg)->snd_assoc_id = id;
344 case SCTP_DEFAULT_PRINFO:
345 ((struct sctp_default_prinfo *)arg)->pr_assoc_id = id;
347 case SCTP_PEER_ADDR_THLDS:
348 ((struct sctp_paddrthlds *)arg)->spt_assoc_id = id;
350 case SCTP_REMOTE_UDP_ENCAPS_PORT:
351 ((struct sctp_udpencaps *)arg)->sue_assoc_id = id;
353 case SCTP_ECN_SUPPORTED:
354 ((struct sctp_assoc_value *)arg)->assoc_id = id;
356 case SCTP_PR_SUPPORTED:
357 ((struct sctp_assoc_value *)arg)->assoc_id = id;
359 case SCTP_AUTH_SUPPORTED:
360 ((struct sctp_assoc_value *)arg)->assoc_id = id;
362 case SCTP_ASCONF_SUPPORTED:
363 ((struct sctp_assoc_value *)arg)->assoc_id = id;
365 case SCTP_RECONFIG_SUPPORTED:
366 ((struct sctp_assoc_value *)arg)->assoc_id = id;
368 case SCTP_NRSACK_SUPPORTED:
369 ((struct sctp_assoc_value *)arg)->assoc_id = id;
371 case SCTP_PKTDROP_SUPPORTED:
372 ((struct sctp_assoc_value *)arg)->assoc_id = id;
375 ((struct sctp_assoc_value *)arg)->assoc_id = id;
377 case SCTP_ENABLE_STREAM_RESET:
378 ((struct sctp_assoc_value *)arg)->assoc_id = id;
383 return (getsockopt(sd, IPPROTO_SCTP, opt, arg, size));
387 sctp_getpaddrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
389 struct sctp_getaddresses *addrs;
396 if (raddrs == NULL) {
401 opt_len = (socklen_t) sizeof(sctp_assoc_t);
402 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_REMOTE_ADDR_SIZE,
403 &asoc, &opt_len) != 0) {
406 /* size required is returned in 'asoc' */
407 opt_len = (socklen_t) ((size_t)asoc + sizeof(struct sctp_getaddresses));
408 addrs = calloc(1, (size_t)opt_len);
413 addrs->sget_assoc_id = id;
414 /* Now lets get the array of addresses */
415 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_PEER_ADDRESSES,
416 addrs, &opt_len) != 0) {
420 *raddrs = (struct sockaddr *)&addrs->addr[0];
422 sa = (struct sockaddr *)&addrs->addr[0];
423 lim = (caddr_t)addrs + opt_len;
424 while (((caddr_t)sa < lim) && (sa->sa_len > 0)) {
425 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
432 sctp_freepaddrs(struct sockaddr *addrs)
436 /* Take away the hidden association id */
437 fr_addr = (void *)((caddr_t)addrs - sizeof(sctp_assoc_t));
443 sctp_getladdrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
445 struct sctp_getaddresses *addrs;
448 size_t size_of_addresses;
452 if (raddrs == NULL) {
456 size_of_addresses = 0;
457 opt_len = (socklen_t) sizeof(int);
458 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_LOCAL_ADDR_SIZE,
459 &size_of_addresses, &opt_len) != 0) {
463 if (size_of_addresses == 0) {
467 opt_len = (socklen_t) (size_of_addresses +
468 sizeof(struct sockaddr_storage) +
469 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,
483 *raddrs = (struct sockaddr *)&addrs->addr[0];
485 sa = (struct sockaddr *)&addrs->addr[0];
486 lim = (caddr_t)addrs + opt_len;
487 while (((caddr_t)sa < lim) && (sa->sa_len > 0)) {
488 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
495 sctp_freeladdrs(struct sockaddr *addrs)
499 /* Take away the hidden association id */
500 fr_addr = (void *)((caddr_t)addrs - sizeof(sctp_assoc_t));
509 const struct sockaddr *to,
517 #ifdef SYS_sctp_generic_sendmsg
518 struct sctp_sndrcvinfo sinfo;
520 memset(&sinfo, 0, sizeof(struct sctp_sndrcvinfo));
521 sinfo.sinfo_ppid = ppid;
522 sinfo.sinfo_flags = flags;
523 sinfo.sinfo_stream = stream_no;
524 sinfo.sinfo_timetolive = timetolive;
525 sinfo.sinfo_context = context;
526 sinfo.sinfo_assoc_id = 0;
527 return (syscall(SYS_sctp_generic_sendmsg, s,
528 data, len, to, tolen, &sinfo, 0));
531 struct sctp_sndrcvinfo *sinfo;
533 char cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
534 struct cmsghdr *cmsg;
535 struct sockaddr *who = NULL;
537 struct sockaddr_in in;
538 struct sockaddr_in6 in6;
542 ((to == NULL) || (tolen < sizeof(struct sockaddr)))) {
546 if ((to != NULL) && (tolen > 0)) {
547 switch (to->sa_family) {
549 if (tolen != sizeof(struct sockaddr_in)) {
553 if ((to->sa_len > 0) &&
554 (to->sa_len != sizeof(struct sockaddr_in))) {
558 memcpy(&addr, to, sizeof(struct sockaddr_in));
559 addr.in.sin_len = sizeof(struct sockaddr_in);
562 if (tolen != sizeof(struct sockaddr_in6)) {
566 if ((to->sa_len > 0) &&
567 (to->sa_len != sizeof(struct sockaddr_in6))) {
571 memcpy(&addr, to, sizeof(struct sockaddr_in6));
572 addr.in6.sin6_len = sizeof(struct sockaddr_in6);
575 errno = EAFNOSUPPORT;
578 who = (struct sockaddr *)&addr;
580 iov.iov_base = (char *)data;
584 msg.msg_name = (caddr_t)who;
585 msg.msg_namelen = who->sa_len;
587 msg.msg_name = (caddr_t)NULL;
592 msg.msg_control = cmsgbuf;
593 msg.msg_controllen = CMSG_SPACE(sizeof(struct sctp_sndrcvinfo));
594 cmsg = (struct cmsghdr *)cmsgbuf;
595 cmsg->cmsg_level = IPPROTO_SCTP;
596 cmsg->cmsg_type = SCTP_SNDRCV;
597 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
598 sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
599 memset(sinfo, 0, sizeof(struct sctp_sndrcvinfo));
600 sinfo->sinfo_stream = stream_no;
601 sinfo->sinfo_ssn = 0;
602 sinfo->sinfo_flags = flags;
603 sinfo->sinfo_ppid = ppid;
604 sinfo->sinfo_context = context;
605 sinfo->sinfo_assoc_id = 0;
606 sinfo->sinfo_timetolive = timetolive;
607 return (sendmsg(s, &msg, 0));
613 sctp_getassocid(int sd, struct sockaddr *sa)
615 struct sctp_paddrinfo sp;
618 /* First get the assoc id */
620 memset(&sp, 0, sizeof(sp));
621 memcpy((caddr_t)&sp.spinfo_address, sa, sa->sa_len);
622 if (getsockopt(sd, IPPROTO_SCTP,
623 SCTP_GET_PEER_ADDR_INFO, &sp, &siz) != 0) {
624 /* We depend on the fact that 0 can never be returned */
625 return ((sctp_assoc_t) 0);
627 return (sp.spinfo_assoc_id);
631 sctp_send(int sd, const void *data, size_t len,
632 const struct sctp_sndrcvinfo *sinfo,
636 #ifdef SYS_sctp_generic_sendmsg
637 struct sockaddr *to = NULL;
639 return (syscall(SYS_sctp_generic_sendmsg, sd,
640 data, len, to, 0, sinfo, flags));
644 char cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
645 struct cmsghdr *cmsg;
651 iov.iov_base = (char *)data;
658 msg.msg_control = cmsgbuf;
659 msg.msg_controllen = CMSG_SPACE(sizeof(struct sctp_sndrcvinfo));
660 cmsg = (struct cmsghdr *)cmsgbuf;
661 cmsg->cmsg_level = IPPROTO_SCTP;
662 cmsg->cmsg_type = SCTP_SNDRCV;
663 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
664 memcpy(CMSG_DATA(cmsg), sinfo, sizeof(struct sctp_sndrcvinfo));
665 return (sendmsg(sd, &msg, flags));
672 sctp_sendx(int sd, const void *msg, size_t msg_len,
673 struct sockaddr *addrs, int addrcnt,
674 struct sctp_sndrcvinfo *sinfo,
677 struct sctp_sndrcvinfo __sinfo;
679 int i, cnt, *aa, saved_errno;
689 #ifdef SYS_sctp_generic_sendmsg
694 * Quick way, we don't need to do a connectx so lets use the
698 return (syscall(SYS_sctp_generic_sendmsg, sd,
699 msg, msg_len, addrs, l, sinfo, flags));
706 /* validate all the addresses and get the size */
707 for (i = 0; i < addrcnt; i++) {
708 if (at->sa_family == AF_INET) {
709 add_len = sizeof(struct sockaddr_in);
710 } else if (at->sa_family == AF_INET6) {
711 add_len = sizeof(struct sockaddr_in6);
717 at = (struct sockaddr *)((caddr_t)at + add_len);
720 /* do we have any? */
733 memcpy((caddr_t)aa, addrs, (size_t)(len - sizeof(int)));
734 ret = setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_DELAYED, (void *)buf,
739 if (errno == EALREADY) {
748 memset(&__sinfo, 0, sizeof(__sinfo));
750 sinfo->sinfo_assoc_id = sctp_getassocid(sd, addrs);
751 if (sinfo->sinfo_assoc_id == 0) {
752 (void)setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_COMPLETE, (void *)addrs,
753 (socklen_t) addrs->sa_len);
757 ret = sctp_send(sd, msg, msg_len, sinfo, flags);
760 (void)setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_COMPLETE, (void *)addrs,
761 (socklen_t) addrs->sa_len);
768 sctp_sendmsgx(int sd,
771 struct sockaddr *addrs,
779 struct sctp_sndrcvinfo sinfo;
781 memset((void *)&sinfo, 0, sizeof(struct sctp_sndrcvinfo));
782 sinfo.sinfo_ppid = ppid;
783 sinfo.sinfo_flags = flags;
784 sinfo.sinfo_ssn = stream_no;
785 sinfo.sinfo_timetolive = timetolive;
786 sinfo.sinfo_context = context;
787 return (sctp_sendx(sd, msg, len, addrs, addrcnt, &sinfo, 0));
794 struct sockaddr *from,
796 struct sctp_sndrcvinfo *sinfo,
799 #ifdef SYS_sctp_generic_recvmsg
804 return (syscall(SYS_sctp_generic_recvmsg, s,
805 &iov, 1, from, fromlen, sinfo, msg_flags));
810 char cmsgbuf[SCTP_CONTROL_VEC_SIZE_RCV];
811 struct cmsghdr *cmsg;
813 if (msg_flags == NULL) {
820 msg.msg_name = (caddr_t)from;
824 msg.msg_namelen = *fromlen;
827 msg.msg_control = cmsgbuf;
828 msg.msg_controllen = sizeof(cmsgbuf);
829 sz = recvmsg(s, &msg, *msg_flags);
830 *msg_flags = msg.msg_flags;
835 sinfo->sinfo_assoc_id = 0;
837 if ((msg.msg_controllen > 0) && (sinfo != NULL)) {
839 * parse through and see if we find the sctp_sndrcvinfo (if
840 * the user wants it).
842 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
843 if (cmsg->cmsg_level != IPPROTO_SCTP) {
846 if (cmsg->cmsg_type == SCTP_SNDRCV) {
847 memcpy(sinfo, CMSG_DATA(cmsg), sizeof(struct sctp_sndrcvinfo));
850 if (cmsg->cmsg_type == SCTP_EXTRCV) {
852 * Let's hope that the user provided enough
853 * enough memory. At least he asked for more
856 memcpy(sinfo, CMSG_DATA(cmsg), sizeof(struct sctp_extrcvinfo));
867 const struct iovec *iov,
869 struct sockaddr *from,
873 unsigned int *infotype,
876 char cmsgbuf[SCTP_CONTROL_VEC_SIZE_RCV];
878 struct cmsghdr *cmsg;
880 struct sctp_rcvinfo *rcvinfo;
881 struct sctp_nxtinfo *nxtinfo;
883 if (((info != NULL) && (infolen == NULL)) |
884 ((info == NULL) && (infolen != NULL) && (*infolen != 0)) ||
885 ((info != NULL) && (infotype == NULL))) {
890 *infotype = SCTP_RECVV_NOINFO;
893 if (fromlen == NULL) {
896 msg.msg_namelen = *fromlen;
898 msg.msg_iov = (struct iovec *)iov;
899 msg.msg_iovlen = iovlen;
900 msg.msg_control = cmsgbuf;
901 msg.msg_controllen = sizeof(cmsgbuf);
902 ret = recvmsg(sd, &msg, *flags);
903 *flags = msg.msg_flags;
905 (msg.msg_controllen > 0) &&
906 (infotype != NULL) &&
911 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
912 if (cmsg->cmsg_level != IPPROTO_SCTP) {
915 if (cmsg->cmsg_type == SCTP_RCVINFO) {
916 rcvinfo = (struct sctp_rcvinfo *)CMSG_DATA(cmsg);
917 if (nxtinfo != NULL) {
923 if (cmsg->cmsg_type == SCTP_NXTINFO) {
924 nxtinfo = (struct sctp_nxtinfo *)CMSG_DATA(cmsg);
925 if (rcvinfo != NULL) {
932 if (rcvinfo != NULL) {
933 if ((nxtinfo != NULL) && (*infolen >= sizeof(struct sctp_recvv_rn))) {
934 struct sctp_recvv_rn *rn_info;
936 rn_info = (struct sctp_recvv_rn *)info;
937 rn_info->recvv_rcvinfo = *rcvinfo;
938 rn_info->recvv_nxtinfo = *nxtinfo;
939 *infolen = (socklen_t) sizeof(struct sctp_recvv_rn);
940 *infotype = SCTP_RECVV_RN;
941 } else if (*infolen >= sizeof(struct sctp_rcvinfo)) {
942 memcpy(info, rcvinfo, sizeof(struct sctp_rcvinfo));
943 *infolen = (socklen_t) sizeof(struct sctp_rcvinfo);
944 *infotype = SCTP_RECVV_RCVINFO;
946 } else if (nxtinfo != NULL) {
947 if (*infolen >= sizeof(struct sctp_nxtinfo)) {
948 memcpy(info, nxtinfo, sizeof(struct sctp_nxtinfo));
949 *infolen = (socklen_t) sizeof(struct sctp_nxtinfo);
950 *infotype = SCTP_RECVV_NXTINFO;
959 const struct iovec *iov, int iovcnt,
960 struct sockaddr *addrs, int addrcnt,
961 void *info, socklen_t infolen, unsigned int infotype,
969 struct sctp_sendv_spa *spa_info;
970 struct cmsghdr *cmsg;
972 struct sockaddr *addr;
973 struct sockaddr_in *addr_in;
974 struct sockaddr_in6 *addr_in6;
978 ((addrs == NULL) && (addrcnt > 0)) ||
979 ((addrs != NULL) && (addrcnt == 0)) ||
980 ((iov == NULL) && (iovcnt > 0)) ||
981 ((iov != NULL) && (iovcnt == 0))) {
985 cmsgbuf = malloc(CMSG_SPACE(sizeof(struct sctp_sndinfo)) +
986 CMSG_SPACE(sizeof(struct sctp_prinfo)) +
987 CMSG_SPACE(sizeof(struct sctp_authinfo)) +
988 (size_t)addrcnt * CMSG_SPACE(sizeof(struct in6_addr)));
989 if (cmsgbuf == NULL) {
993 msg.msg_control = cmsgbuf;
994 msg.msg_controllen = 0;
995 cmsg = (struct cmsghdr *)cmsgbuf;
997 case SCTP_SENDV_NOINFO:
998 if ((infolen != 0) || (info != NULL)) {
1004 case SCTP_SENDV_SNDINFO:
1005 if ((info == NULL) || (infolen < sizeof(struct sctp_sndinfo))) {
1010 cmsg->cmsg_level = IPPROTO_SCTP;
1011 cmsg->cmsg_type = SCTP_SNDINFO;
1012 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndinfo));
1013 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_sndinfo));
1014 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_sndinfo));
1015 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_sndinfo)));
1017 case SCTP_SENDV_PRINFO:
1018 if ((info == NULL) || (infolen < sizeof(struct sctp_prinfo))) {
1023 cmsg->cmsg_level = IPPROTO_SCTP;
1024 cmsg->cmsg_type = SCTP_PRINFO;
1025 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_prinfo));
1026 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_prinfo));
1027 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_prinfo));
1028 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_prinfo)));
1030 case SCTP_SENDV_AUTHINFO:
1031 if ((info == NULL) || (infolen < sizeof(struct sctp_authinfo))) {
1036 cmsg->cmsg_level = IPPROTO_SCTP;
1037 cmsg->cmsg_type = SCTP_AUTHINFO;
1038 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_authinfo));
1039 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_authinfo));
1040 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_authinfo));
1041 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_authinfo)));
1043 case SCTP_SENDV_SPA:
1044 if ((info == NULL) || (infolen < sizeof(struct sctp_sendv_spa))) {
1049 spa_info = (struct sctp_sendv_spa *)info;
1050 if (spa_info->sendv_flags & SCTP_SEND_SNDINFO_VALID) {
1051 cmsg->cmsg_level = IPPROTO_SCTP;
1052 cmsg->cmsg_type = SCTP_SNDINFO;
1053 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndinfo));
1054 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_sndinfo, sizeof(struct sctp_sndinfo));
1055 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_sndinfo));
1056 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_sndinfo)));
1058 if (spa_info->sendv_flags & SCTP_SEND_PRINFO_VALID) {
1059 cmsg->cmsg_level = IPPROTO_SCTP;
1060 cmsg->cmsg_type = SCTP_PRINFO;
1061 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_prinfo));
1062 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_prinfo, sizeof(struct sctp_prinfo));
1063 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_prinfo));
1064 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_prinfo)));
1066 if (spa_info->sendv_flags & SCTP_SEND_AUTHINFO_VALID) {
1067 cmsg->cmsg_level = IPPROTO_SCTP;
1068 cmsg->cmsg_type = SCTP_AUTHINFO;
1069 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_authinfo));
1070 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_authinfo, sizeof(struct sctp_authinfo));
1071 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_authinfo));
1072 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_authinfo)));
1081 msg.msg_name = NULL;
1082 msg.msg_namelen = 0;
1084 for (i = 0; i < addrcnt; i++) {
1085 switch (addr->sa_family) {
1087 addr_len = (socklen_t) sizeof(struct sockaddr_in);
1088 addr_in = (struct sockaddr_in *)addr;
1089 if (addr_in->sin_len != addr_len) {
1095 port = addr_in->sin_port;
1097 if (port == addr_in->sin_port) {
1098 cmsg->cmsg_level = IPPROTO_SCTP;
1099 cmsg->cmsg_type = SCTP_DSTADDRV4;
1100 cmsg->cmsg_len = CMSG_LEN(sizeof(struct in_addr));
1101 memcpy(CMSG_DATA(cmsg), &addr_in->sin_addr, sizeof(struct in_addr));
1102 msg.msg_controllen += CMSG_SPACE(sizeof(struct in_addr));
1103 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct in_addr)));
1112 addr_len = (socklen_t) sizeof(struct sockaddr_in6);
1113 addr_in6 = (struct sockaddr_in6 *)addr;
1114 if (addr_in6->sin6_len != addr_len) {
1120 port = addr_in6->sin6_port;
1122 if (port == addr_in6->sin6_port) {
1123 cmsg->cmsg_level = IPPROTO_SCTP;
1124 cmsg->cmsg_type = SCTP_DSTADDRV6;
1125 cmsg->cmsg_len = CMSG_LEN(sizeof(struct in6_addr));
1126 memcpy(CMSG_DATA(cmsg), &addr_in6->sin6_addr, sizeof(struct in6_addr));
1127 msg.msg_controllen += CMSG_SPACE(sizeof(struct in6_addr));
1128 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct in6_addr)));
1142 msg.msg_name = addr;
1143 msg.msg_namelen = addr_len;
1145 addr = (struct sockaddr *)((caddr_t)addr + addr_len);
1147 if (msg.msg_controllen == 0) {
1148 msg.msg_control = NULL;
1150 msg.msg_iov = (struct iovec *)iov;
1151 msg.msg_iovlen = iovcnt;
1153 ret = sendmsg(sd, &msg, flags);
1159 #if !defined(SYS_sctp_peeloff) && !defined(HAVE_SCTP_PEELOFF_SOCKOPT)
1162 sctp_peeloff(int sd, sctp_assoc_t assoc_id)
1164 /* NOT supported, return invalid sd */
1170 #if defined(SYS_sctp_peeloff) && !defined(HAVE_SCTP_PEELOFF_SOCKOPT)
1172 sctp_peeloff(int sd, sctp_assoc_t assoc_id)
1174 return (syscall(SYS_sctp_peeloff, sd, assoc_id));
1179 #undef SCTP_CONTROL_VEC_SIZE_RCV