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("$FreeBSD$");
43 #include <sys/types.h>
44 #include <sys/socket.h>
45 #include <sys/errno.h>
46 #include <sys/syscall.h>
48 #include <netinet/in.h>
49 #include <arpa/inet.h>
50 #include <netinet/sctp_uio.h>
51 #include <netinet/sctp.h>
53 #ifndef IN6_IS_ADDR_V4MAPPED
54 #define IN6_IS_ADDR_V4MAPPED(a) \
55 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
56 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
57 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
60 #define SCTP_CONTROL_VEC_SIZE_RCV 16384
64 in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6)
66 bzero(sin, sizeof(*sin));
67 sin->sin_len = sizeof(struct sockaddr_in);
68 sin->sin_family = AF_INET;
69 sin->sin_port = sin6->sin6_port;
70 sin->sin_addr.s_addr = sin6->sin6_addr.__u6_addr.__u6_addr32[3];
74 sctp_getaddrlen(sa_family_t family)
78 struct sctp_assoc_value av;
80 av.assoc_value = family;
83 sd = socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP);
84 #elif defined(AF_INET6)
85 sd = socket(AF_INET6, SOCK_SEQPACKET, IPPROTO_SCTP);
92 ret = getsockopt(sd, IPPROTO_SCTP, SCTP_GET_ADDR_LEN, &av, &siz);
95 return ((int)av.assoc_value);
102 sctp_connectx(int sd, const struct sockaddr *addrs, int addrcnt,
108 const struct sockaddr *at;
111 /* validate the address count and list */
112 if ((addrs == NULL) || (addrcnt <= 0)) {
116 if ((buf = malloc(sizeof(int) + (size_t)addrcnt * sizeof(struct sockaddr_in6))) == NULL) {
122 cpto = buf + sizeof(int);
123 /* validate all the addresses and get the size */
124 for (i = 0; i < addrcnt; i++) {
125 switch (at->sa_family) {
127 if (at->sa_len != sizeof(struct sockaddr_in)) {
132 memcpy(cpto, at, sizeof(struct sockaddr_in));
133 cpto = ((caddr_t)cpto + sizeof(struct sockaddr_in));
134 len += sizeof(struct sockaddr_in);
137 if (at->sa_len != sizeof(struct sockaddr_in6)) {
142 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)at)->sin6_addr)) {
143 in6_sin6_2_sin((struct sockaddr_in *)cpto, (struct sockaddr_in6 *)at);
144 cpto = ((caddr_t)cpto + sizeof(struct sockaddr_in));
145 len += sizeof(struct sockaddr_in);
147 memcpy(cpto, at, sizeof(struct sockaddr_in6));
148 cpto = ((caddr_t)cpto + sizeof(struct sockaddr_in6));
149 len += sizeof(struct sockaddr_in6);
157 at = (struct sockaddr *)((caddr_t)at + at->sa_len);
161 ret = setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X, (void *)buf,
163 if ((ret == 0) && (id != NULL)) {
164 *id = *(sctp_assoc_t *) buf;
171 sctp_bindx(int sd, struct sockaddr *addrs, int addrcnt, int flags)
173 struct sctp_getaddresses *gaddrs;
175 struct sockaddr_in *sin;
176 struct sockaddr_in6 *sin6;
181 /* validate the flags */
182 if ((flags != SCTP_BINDX_ADD_ADDR) &&
183 (flags != SCTP_BINDX_REM_ADDR)) {
187 /* validate the address count and list */
188 if ((addrcnt <= 0) || (addrs == NULL)) {
192 /* First pre-screen the addresses */
194 for (i = 0; i < addrcnt; i++) {
195 switch (sa->sa_family) {
197 if (sa->sa_len != sizeof(struct sockaddr_in)) {
201 sin = (struct sockaddr_in *)sa;
203 /* non-zero port, check or save */
205 /* Check against our port */
206 if (sport != sin->sin_port) {
211 /* save off the port */
212 sport = sin->sin_port;
217 if (sa->sa_len != sizeof(struct sockaddr_in6)) {
221 sin6 = (struct sockaddr_in6 *)sa;
222 if (sin6->sin6_port) {
223 /* non-zero port, check or save */
225 /* Check against our port */
226 if (sport != sin6->sin6_port) {
231 /* save off the port */
232 sport = sin6->sin6_port;
237 /* Invalid address family specified. */
238 errno = EAFNOSUPPORT;
241 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
243 argsz = sizeof(struct sctp_getaddresses) +
244 sizeof(struct sockaddr_storage);
245 if ((gaddrs = (struct sctp_getaddresses *)malloc(argsz)) == NULL) {
250 for (i = 0; i < addrcnt; i++) {
251 memset(gaddrs, 0, argsz);
252 gaddrs->sget_assoc_id = 0;
253 memcpy(gaddrs->addr, sa, sa->sa_len);
255 * Now, if there was a port mentioned, assure that the first
256 * address has that port to make sure it fails or succeeds
259 if ((i == 0) && (sport != 0)) {
260 switch (gaddrs->addr->sa_family) {
262 sin = (struct sockaddr_in *)gaddrs->addr;
263 sin->sin_port = sport;
266 sin6 = (struct sockaddr_in6 *)gaddrs->addr;
267 sin6->sin6_port = sport;
271 if (setsockopt(sd, IPPROTO_SCTP, flags, gaddrs,
272 (socklen_t) argsz) != 0) {
276 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
283 sctp_opt_info(int sd, sctp_assoc_t id, int opt, void *arg, socklen_t * size)
289 if ((id == SCTP_CURRENT_ASSOC) ||
290 (id == SCTP_ALL_ASSOC)) {
296 ((struct sctp_rtoinfo *)arg)->srto_assoc_id = id;
299 ((struct sctp_assocparams *)arg)->sasoc_assoc_id = id;
301 case SCTP_DEFAULT_SEND_PARAM:
302 ((struct sctp_assocparams *)arg)->sasoc_assoc_id = id;
304 case SCTP_PRIMARY_ADDR:
305 ((struct sctp_setprim *)arg)->ssp_assoc_id = id;
307 case SCTP_PEER_ADDR_PARAMS:
308 ((struct sctp_paddrparams *)arg)->spp_assoc_id = id;
311 ((struct sctp_assoc_value *)arg)->assoc_id = id;
314 ((struct sctp_authkey *)arg)->sca_assoc_id = id;
316 case SCTP_AUTH_ACTIVE_KEY:
317 ((struct sctp_authkeyid *)arg)->scact_assoc_id = id;
319 case SCTP_DELAYED_SACK:
320 ((struct sctp_sack_info *)arg)->sack_assoc_id = id;
323 ((struct sctp_assoc_value *)arg)->assoc_id = id;
326 ((struct sctp_status *)arg)->sstat_assoc_id = id;
328 case SCTP_GET_PEER_ADDR_INFO:
329 ((struct sctp_paddrinfo *)arg)->spinfo_assoc_id = id;
331 case SCTP_PEER_AUTH_CHUNKS:
332 ((struct sctp_authchunks *)arg)->gauth_assoc_id = id;
334 case SCTP_LOCAL_AUTH_CHUNKS:
335 ((struct sctp_authchunks *)arg)->gauth_assoc_id = id;
338 ((struct sctp_timeouts *)arg)->stimo_assoc_id = id;
341 ((struct sctp_event *)arg)->se_assoc_id = id;
343 case SCTP_DEFAULT_SNDINFO:
344 ((struct sctp_sndinfo *)arg)->snd_assoc_id = id;
346 case SCTP_DEFAULT_PRINFO:
347 ((struct sctp_default_prinfo *)arg)->pr_assoc_id = id;
349 case SCTP_PEER_ADDR_THLDS:
350 ((struct sctp_paddrthlds *)arg)->spt_assoc_id = id;
352 case SCTP_REMOTE_UDP_ENCAPS_PORT:
353 ((struct sctp_udpencaps *)arg)->sue_assoc_id = id;
355 case SCTP_ECN_SUPPORTED:
356 ((struct sctp_assoc_value *)arg)->assoc_id = id;
358 case SCTP_PR_SUPPORTED:
359 ((struct sctp_assoc_value *)arg)->assoc_id = id;
361 case SCTP_AUTH_SUPPORTED:
362 ((struct sctp_assoc_value *)arg)->assoc_id = id;
364 case SCTP_ASCONF_SUPPORTED:
365 ((struct sctp_assoc_value *)arg)->assoc_id = id;
367 case SCTP_RECONFIG_SUPPORTED:
368 ((struct sctp_assoc_value *)arg)->assoc_id = id;
370 case SCTP_NRSACK_SUPPORTED:
371 ((struct sctp_assoc_value *)arg)->assoc_id = id;
373 case SCTP_PKTDROP_SUPPORTED:
374 ((struct sctp_assoc_value *)arg)->assoc_id = id;
377 ((struct sctp_assoc_value *)arg)->assoc_id = id;
379 case SCTP_ENABLE_STREAM_RESET:
380 ((struct sctp_assoc_value *)arg)->assoc_id = id;
382 case SCTP_PR_STREAM_STATUS:
383 ((struct sctp_prstatus *)arg)->sprstat_assoc_id = id;
385 case SCTP_PR_ASSOC_STATUS:
386 ((struct sctp_prstatus *)arg)->sprstat_assoc_id = id;
389 ((struct sctp_assoc_value *)arg)->assoc_id = id;
394 return (getsockopt(sd, IPPROTO_SCTP, opt, arg, size));
398 sctp_getpaddrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
400 struct sctp_getaddresses *addrs;
407 if (raddrs == NULL) {
412 opt_len = (socklen_t) sizeof(sctp_assoc_t);
413 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_REMOTE_ADDR_SIZE,
414 &asoc, &opt_len) != 0) {
417 /* size required is returned in 'asoc' */
418 opt_len = (socklen_t) ((size_t)asoc + sizeof(struct sctp_getaddresses));
419 addrs = calloc(1, (size_t)opt_len);
424 addrs->sget_assoc_id = id;
425 /* Now lets get the array of addresses */
426 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_PEER_ADDRESSES,
427 addrs, &opt_len) != 0) {
431 *raddrs = (struct sockaddr *)&addrs->addr[0];
433 sa = (struct sockaddr *)&addrs->addr[0];
434 lim = (caddr_t)addrs + opt_len;
435 while (((caddr_t)sa < lim) && (sa->sa_len > 0)) {
436 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
443 sctp_freepaddrs(struct sockaddr *addrs)
447 /* Take away the hidden association id */
448 fr_addr = (void *)((caddr_t)addrs - sizeof(sctp_assoc_t));
454 sctp_getladdrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
456 struct sctp_getaddresses *addrs;
459 size_t size_of_addresses;
463 if (raddrs == NULL) {
467 size_of_addresses = 0;
468 opt_len = (socklen_t) sizeof(int);
469 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_LOCAL_ADDR_SIZE,
470 &size_of_addresses, &opt_len) != 0) {
474 if (size_of_addresses == 0) {
478 opt_len = (socklen_t) (size_of_addresses +
479 sizeof(struct sockaddr_storage) +
480 sizeof(struct sctp_getaddresses));
481 addrs = calloc(1, (size_t)opt_len);
486 addrs->sget_assoc_id = id;
487 /* Now lets get the array of addresses */
488 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_LOCAL_ADDRESSES, addrs,
494 *raddrs = (struct sockaddr *)&addrs->addr[0];
496 sa = (struct sockaddr *)&addrs->addr[0];
497 lim = (caddr_t)addrs + opt_len;
498 while (((caddr_t)sa < lim) && (sa->sa_len > 0)) {
499 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
506 sctp_freeladdrs(struct sockaddr *addrs)
510 /* Take away the hidden association id */
511 fr_addr = (void *)((caddr_t)addrs - sizeof(sctp_assoc_t));
520 const struct sockaddr *to,
528 #ifdef SYS_sctp_generic_sendmsg
529 struct sctp_sndrcvinfo sinfo;
531 memset(&sinfo, 0, sizeof(struct sctp_sndrcvinfo));
532 sinfo.sinfo_ppid = ppid;
533 sinfo.sinfo_flags = flags;
534 sinfo.sinfo_stream = stream_no;
535 sinfo.sinfo_timetolive = timetolive;
536 sinfo.sinfo_context = context;
537 sinfo.sinfo_assoc_id = 0;
538 return (syscall(SYS_sctp_generic_sendmsg, s,
539 data, len, to, tolen, &sinfo, 0));
542 struct sctp_sndrcvinfo *sinfo;
544 char cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
545 struct cmsghdr *cmsg;
546 struct sockaddr *who = NULL;
548 struct sockaddr_in in;
549 struct sockaddr_in6 in6;
553 ((to == NULL) || (tolen < sizeof(struct sockaddr)))) {
557 if ((to != NULL) && (tolen > 0)) {
558 switch (to->sa_family) {
560 if (tolen != sizeof(struct sockaddr_in)) {
564 if ((to->sa_len > 0) &&
565 (to->sa_len != sizeof(struct sockaddr_in))) {
569 memcpy(&addr, to, sizeof(struct sockaddr_in));
570 addr.in.sin_len = sizeof(struct sockaddr_in);
573 if (tolen != sizeof(struct sockaddr_in6)) {
577 if ((to->sa_len > 0) &&
578 (to->sa_len != sizeof(struct sockaddr_in6))) {
582 memcpy(&addr, to, sizeof(struct sockaddr_in6));
583 addr.in6.sin6_len = sizeof(struct sockaddr_in6);
586 errno = EAFNOSUPPORT;
589 who = (struct sockaddr *)&addr;
591 iov.iov_base = (char *)data;
595 msg.msg_name = (caddr_t)who;
596 msg.msg_namelen = who->sa_len;
598 msg.msg_name = (caddr_t)NULL;
603 msg.msg_control = cmsgbuf;
604 msg.msg_controllen = CMSG_SPACE(sizeof(struct sctp_sndrcvinfo));
606 cmsg = (struct cmsghdr *)cmsgbuf;
607 cmsg->cmsg_level = IPPROTO_SCTP;
608 cmsg->cmsg_type = SCTP_SNDRCV;
609 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
610 sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
611 memset(sinfo, 0, sizeof(struct sctp_sndrcvinfo));
612 sinfo->sinfo_stream = stream_no;
613 sinfo->sinfo_ssn = 0;
614 sinfo->sinfo_flags = flags;
615 sinfo->sinfo_ppid = ppid;
616 sinfo->sinfo_context = context;
617 sinfo->sinfo_assoc_id = 0;
618 sinfo->sinfo_timetolive = timetolive;
619 return (sendmsg(s, &msg, 0));
625 sctp_getassocid(int sd, struct sockaddr *sa)
627 struct sctp_paddrinfo sp;
630 /* First get the assoc id */
632 memset(&sp, 0, sizeof(sp));
633 memcpy((caddr_t)&sp.spinfo_address, sa, sa->sa_len);
634 if (getsockopt(sd, IPPROTO_SCTP,
635 SCTP_GET_PEER_ADDR_INFO, &sp, &siz) != 0) {
636 /* We depend on the fact that 0 can never be returned */
637 return ((sctp_assoc_t) 0);
639 return (sp.spinfo_assoc_id);
643 sctp_send(int sd, const void *data, size_t len,
644 const struct sctp_sndrcvinfo *sinfo,
648 #ifdef SYS_sctp_generic_sendmsg
649 struct sockaddr *to = NULL;
651 return (syscall(SYS_sctp_generic_sendmsg, sd,
652 data, len, to, 0, sinfo, flags));
656 char cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
657 struct cmsghdr *cmsg;
663 iov.iov_base = (char *)data;
670 msg.msg_control = cmsgbuf;
671 msg.msg_controllen = CMSG_SPACE(sizeof(struct sctp_sndrcvinfo));
673 cmsg = (struct cmsghdr *)cmsgbuf;
674 cmsg->cmsg_level = IPPROTO_SCTP;
675 cmsg->cmsg_type = SCTP_SNDRCV;
676 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
677 memcpy(CMSG_DATA(cmsg), sinfo, sizeof(struct sctp_sndrcvinfo));
678 return (sendmsg(sd, &msg, flags));
685 sctp_sendx(int sd, const void *msg, size_t msg_len,
686 struct sockaddr *addrs, int addrcnt,
687 struct sctp_sndrcvinfo *sinfo,
690 struct sctp_sndrcvinfo __sinfo;
692 int i, cnt, *aa, saved_errno;
702 #ifdef SYS_sctp_generic_sendmsg
708 * Quick way, we don't need to do a connectx so lets use the
712 ret = syscall(SYS_sctp_generic_sendmsg, sd,
713 msg, msg_len, addrs, l, sinfo, flags);
714 if ((ret >= 0) && (sinfo != NULL)) {
715 sinfo->sinfo_assoc_id = sctp_getassocid(sd, addrs);
724 /* validate all the addresses and get the size */
725 for (i = 0; i < addrcnt; i++) {
726 if (at->sa_family == AF_INET) {
727 add_len = sizeof(struct sockaddr_in);
728 } else if (at->sa_family == AF_INET6) {
729 add_len = sizeof(struct sockaddr_in6);
735 at = (struct sockaddr *)((caddr_t)at + add_len);
738 /* do we have any? */
751 memcpy((caddr_t)aa, addrs, (size_t)(len - sizeof(int)));
752 ret = setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_DELAYED, (void *)buf,
757 if (errno == EALREADY) {
766 memset(&__sinfo, 0, sizeof(__sinfo));
768 sinfo->sinfo_assoc_id = sctp_getassocid(sd, addrs);
769 if (sinfo->sinfo_assoc_id == 0) {
770 (void)setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_COMPLETE, (void *)addrs,
771 (socklen_t) addrs->sa_len);
775 ret = sctp_send(sd, msg, msg_len, sinfo, flags);
778 (void)setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_COMPLETE, (void *)addrs,
779 (socklen_t) addrs->sa_len);
786 sctp_sendmsgx(int sd,
789 struct sockaddr *addrs,
797 struct sctp_sndrcvinfo sinfo;
799 memset((void *)&sinfo, 0, sizeof(struct sctp_sndrcvinfo));
800 sinfo.sinfo_ppid = ppid;
801 sinfo.sinfo_flags = flags;
802 sinfo.sinfo_stream = stream_no;
803 sinfo.sinfo_timetolive = timetolive;
804 sinfo.sinfo_context = context;
805 return (sctp_sendx(sd, msg, len, addrs, addrcnt, &sinfo, 0));
812 struct sockaddr *from,
814 struct sctp_sndrcvinfo *sinfo,
817 #ifdef SYS_sctp_generic_recvmsg
822 return (syscall(SYS_sctp_generic_recvmsg, s,
823 &iov, 1, from, fromlen, sinfo, msg_flags));
828 char cmsgbuf[SCTP_CONTROL_VEC_SIZE_RCV];
829 struct cmsghdr *cmsg;
831 if (msg_flags == NULL) {
837 msg.msg_name = (caddr_t)from;
841 msg.msg_namelen = *fromlen;
844 msg.msg_control = cmsgbuf;
845 msg.msg_controllen = sizeof(cmsgbuf);
847 sz = recvmsg(s, &msg, *msg_flags);
848 *msg_flags = msg.msg_flags;
853 sinfo->sinfo_assoc_id = 0;
855 if ((msg.msg_controllen > 0) && (sinfo != NULL)) {
857 * parse through and see if we find the sctp_sndrcvinfo (if
858 * the user wants it).
860 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
861 if (cmsg->cmsg_level != IPPROTO_SCTP) {
864 if (cmsg->cmsg_type == SCTP_SNDRCV) {
865 memcpy(sinfo, CMSG_DATA(cmsg), sizeof(struct sctp_sndrcvinfo));
868 if (cmsg->cmsg_type == SCTP_EXTRCV) {
870 * Let's hope that the user provided enough
871 * enough memory. At least he asked for more
874 memcpy(sinfo, CMSG_DATA(cmsg), sizeof(struct sctp_extrcvinfo));
885 const struct iovec *iov,
887 struct sockaddr *from,
891 unsigned int *infotype,
894 char cmsgbuf[SCTP_CONTROL_VEC_SIZE_RCV];
896 struct cmsghdr *cmsg;
898 struct sctp_rcvinfo *rcvinfo;
899 struct sctp_nxtinfo *nxtinfo;
901 if (((info != NULL) && (infolen == NULL)) ||
902 ((info == NULL) && (infolen != NULL) && (*infolen != 0)) ||
903 ((info != NULL) && (infotype == NULL))) {
908 *infotype = SCTP_RECVV_NOINFO;
911 if (fromlen == NULL) {
914 msg.msg_namelen = *fromlen;
916 msg.msg_iov = (struct iovec *)iov;
917 msg.msg_iovlen = iovlen;
918 msg.msg_control = cmsgbuf;
919 msg.msg_controllen = sizeof(cmsgbuf);
921 ret = recvmsg(sd, &msg, *flags);
922 *flags = msg.msg_flags;
924 (msg.msg_controllen > 0) &&
925 (infotype != NULL) &&
930 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
931 if (cmsg->cmsg_level != IPPROTO_SCTP) {
934 if (cmsg->cmsg_type == SCTP_RCVINFO) {
935 rcvinfo = (struct sctp_rcvinfo *)CMSG_DATA(cmsg);
936 if (nxtinfo != NULL) {
942 if (cmsg->cmsg_type == SCTP_NXTINFO) {
943 nxtinfo = (struct sctp_nxtinfo *)CMSG_DATA(cmsg);
944 if (rcvinfo != NULL) {
951 if (rcvinfo != NULL) {
952 if ((nxtinfo != NULL) && (*infolen >= sizeof(struct sctp_recvv_rn))) {
953 struct sctp_recvv_rn *rn_info;
955 rn_info = (struct sctp_recvv_rn *)info;
956 rn_info->recvv_rcvinfo = *rcvinfo;
957 rn_info->recvv_nxtinfo = *nxtinfo;
958 *infolen = (socklen_t) sizeof(struct sctp_recvv_rn);
959 *infotype = SCTP_RECVV_RN;
960 } else if (*infolen >= sizeof(struct sctp_rcvinfo)) {
961 memcpy(info, rcvinfo, sizeof(struct sctp_rcvinfo));
962 *infolen = (socklen_t) sizeof(struct sctp_rcvinfo);
963 *infotype = SCTP_RECVV_RCVINFO;
965 } else if (nxtinfo != NULL) {
966 if (*infolen >= sizeof(struct sctp_nxtinfo)) {
967 memcpy(info, nxtinfo, sizeof(struct sctp_nxtinfo));
968 *infolen = (socklen_t) sizeof(struct sctp_nxtinfo);
969 *infotype = SCTP_RECVV_NXTINFO;
978 const struct iovec *iov, int iovcnt,
979 struct sockaddr *addrs, int addrcnt,
980 void *info, socklen_t infolen, unsigned int infotype,
988 struct sctp_sendv_spa *spa_info;
989 struct cmsghdr *cmsg;
991 struct sockaddr *addr;
992 struct sockaddr_in *addr_in;
993 struct sockaddr_in6 *addr_in6;
994 sctp_assoc_t *assoc_id;
998 ((addrs == NULL) && (addrcnt > 0)) ||
999 ((addrs != NULL) && (addrcnt == 0)) ||
1000 ((iov == NULL) && (iovcnt > 0)) ||
1001 ((iov != NULL) && (iovcnt == 0))) {
1005 cmsgbuf = malloc(CMSG_SPACE(sizeof(struct sctp_sndinfo)) +
1006 CMSG_SPACE(sizeof(struct sctp_prinfo)) +
1007 CMSG_SPACE(sizeof(struct sctp_authinfo)) +
1008 (size_t)addrcnt * CMSG_SPACE(sizeof(struct in6_addr)));
1009 if (cmsgbuf == NULL) {
1014 msg.msg_control = cmsgbuf;
1015 msg.msg_controllen = 0;
1016 cmsg = (struct cmsghdr *)cmsgbuf;
1018 case SCTP_SENDV_NOINFO:
1019 if ((infolen != 0) || (info != NULL)) {
1025 case SCTP_SENDV_SNDINFO:
1026 if ((info == NULL) || (infolen < sizeof(struct sctp_sndinfo))) {
1031 cmsg->cmsg_level = IPPROTO_SCTP;
1032 cmsg->cmsg_type = SCTP_SNDINFO;
1033 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndinfo));
1034 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_sndinfo));
1035 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_sndinfo));
1036 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_sndinfo)));
1037 assoc_id = &(((struct sctp_sndinfo *)info)->snd_assoc_id);
1039 case SCTP_SENDV_PRINFO:
1040 if ((info == NULL) || (infolen < sizeof(struct sctp_prinfo))) {
1045 cmsg->cmsg_level = IPPROTO_SCTP;
1046 cmsg->cmsg_type = SCTP_PRINFO;
1047 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_prinfo));
1048 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_prinfo));
1049 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_prinfo));
1050 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_prinfo)));
1052 case SCTP_SENDV_AUTHINFO:
1053 if ((info == NULL) || (infolen < sizeof(struct sctp_authinfo))) {
1058 cmsg->cmsg_level = IPPROTO_SCTP;
1059 cmsg->cmsg_type = SCTP_AUTHINFO;
1060 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_authinfo));
1061 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_authinfo));
1062 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_authinfo));
1063 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_authinfo)));
1065 case SCTP_SENDV_SPA:
1066 if ((info == NULL) || (infolen < sizeof(struct sctp_sendv_spa))) {
1071 spa_info = (struct sctp_sendv_spa *)info;
1072 if (spa_info->sendv_flags & SCTP_SEND_SNDINFO_VALID) {
1073 cmsg->cmsg_level = IPPROTO_SCTP;
1074 cmsg->cmsg_type = SCTP_SNDINFO;
1075 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndinfo));
1076 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_sndinfo, sizeof(struct sctp_sndinfo));
1077 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_sndinfo));
1078 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_sndinfo)));
1079 assoc_id = &(spa_info->sendv_sndinfo.snd_assoc_id);
1081 if (spa_info->sendv_flags & SCTP_SEND_PRINFO_VALID) {
1082 cmsg->cmsg_level = IPPROTO_SCTP;
1083 cmsg->cmsg_type = SCTP_PRINFO;
1084 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_prinfo));
1085 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_prinfo, sizeof(struct sctp_prinfo));
1086 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_prinfo));
1087 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_prinfo)));
1089 if (spa_info->sendv_flags & SCTP_SEND_AUTHINFO_VALID) {
1090 cmsg->cmsg_level = IPPROTO_SCTP;
1091 cmsg->cmsg_type = SCTP_AUTHINFO;
1092 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_authinfo));
1093 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_authinfo, sizeof(struct sctp_authinfo));
1094 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_authinfo));
1095 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_authinfo)));
1104 msg.msg_name = NULL;
1105 msg.msg_namelen = 0;
1107 for (i = 0; i < addrcnt; i++) {
1108 switch (addr->sa_family) {
1110 addr_len = (socklen_t) sizeof(struct sockaddr_in);
1111 addr_in = (struct sockaddr_in *)addr;
1112 if (addr_in->sin_len != addr_len) {
1118 port = addr_in->sin_port;
1120 if (port == addr_in->sin_port) {
1121 cmsg->cmsg_level = IPPROTO_SCTP;
1122 cmsg->cmsg_type = SCTP_DSTADDRV4;
1123 cmsg->cmsg_len = CMSG_LEN(sizeof(struct in_addr));
1124 memcpy(CMSG_DATA(cmsg), &addr_in->sin_addr, sizeof(struct in_addr));
1125 msg.msg_controllen += CMSG_SPACE(sizeof(struct in_addr));
1126 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct in_addr)));
1135 addr_len = (socklen_t) sizeof(struct sockaddr_in6);
1136 addr_in6 = (struct sockaddr_in6 *)addr;
1137 if (addr_in6->sin6_len != addr_len) {
1143 port = addr_in6->sin6_port;
1145 if (port == addr_in6->sin6_port) {
1146 cmsg->cmsg_level = IPPROTO_SCTP;
1147 cmsg->cmsg_type = SCTP_DSTADDRV6;
1148 cmsg->cmsg_len = CMSG_LEN(sizeof(struct in6_addr));
1149 memcpy(CMSG_DATA(cmsg), &addr_in6->sin6_addr, sizeof(struct in6_addr));
1150 msg.msg_controllen += CMSG_SPACE(sizeof(struct in6_addr));
1151 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct in6_addr)));
1165 msg.msg_name = addr;
1166 msg.msg_namelen = addr_len;
1168 addr = (struct sockaddr *)((caddr_t)addr + addr_len);
1170 if (msg.msg_controllen == 0) {
1171 msg.msg_control = NULL;
1173 msg.msg_iov = (struct iovec *)iov;
1174 msg.msg_iovlen = iovcnt;
1176 ret = sendmsg(sd, &msg, flags);
1178 if ((ret >= 0) && (addrs != NULL) && (assoc_id != NULL)) {
1179 *assoc_id = sctp_getassocid(sd, addrs);
1185 #if !defined(SYS_sctp_peeloff) && !defined(HAVE_SCTP_PEELOFF_SOCKOPT)
1188 sctp_peeloff(int sd, sctp_assoc_t assoc_id)
1190 /* NOT supported, return invalid sd */
1196 #if defined(SYS_sctp_peeloff) && !defined(HAVE_SCTP_PEELOFF_SOCKOPT)
1198 sctp_peeloff(int sd, sctp_assoc_t assoc_id)
1200 return (syscall(SYS_sctp_peeloff, sd, assoc_id));
1205 #undef SCTP_CONTROL_VEC_SIZE_RCV