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 #include <net/if_dl.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)))
61 #define SCTP_CONTROL_VEC_SIZE_SND 8192
62 #define SCTP_CONTROL_VEC_SIZE_RCV 16384
63 #define SCTP_STACK_BUF_SIZE 2048
65 #ifdef SCTP_DEBUG_PRINT_ADDRESS
67 #define SCTP_STRING_BUF_SZ 256
70 SCTPPrintAnAddress(struct sockaddr *a)
72 char stringToPrint[SCTP_STRING_BUF_SZ];
80 if (a->sa_family == AF_INET) {
81 srcaddr = (char *)&((struct sockaddr_in *)a)->sin_addr;
82 txt = "IPv4 Address: ";
83 prt = ntohs(((struct sockaddr_in *)a)->sin_port);
84 } else if (a->sa_family == AF_INET6) {
85 srcaddr = (char *)&((struct sockaddr_in6 *)a)->sin6_addr;
86 prt = ntohs(((struct sockaddr_in6 *)a)->sin6_port);
87 txt = "IPv6 Address: ";
88 } else if (a->sa_family == AF_LINK) {
90 char tbuf[SCTP_STRING_BUF_SZ];
91 u_char adbuf[SCTP_STRING_BUF_SZ];
92 struct sockaddr_dl *dl;
94 dl = (struct sockaddr_dl *)a;
95 strncpy(tbuf, dl->sdl_data, dl->sdl_nlen);
96 tbuf[dl->sdl_nlen] = 0;
97 printf("Intf:%s (len:%d)Interface index:%d type:%x(%d) ll-len:%d ",
105 memcpy(adbuf, LLADDR(dl), dl->sdl_alen);
106 for (i = 0; i < dl->sdl_alen; i++) {
107 printf("%2.2x", adbuf[i]);
108 if (i < (dl->sdl_alen - 1))
116 if (inet_ntop(a->sa_family, srcaddr, stringToPrint, sizeof(stringToPrint))) {
117 if (a->sa_family == AF_INET6) {
118 printf("%s%s:%d scope:%d\n",
119 txt, stringToPrint, prt,
120 ((struct sockaddr_in6 *)a)->sin6_scope_id);
122 printf("%s%s:%d\n", txt, stringToPrint, prt);
126 printf("%s unprintable?\n", txt);
130 #endif /* SCTP_DEBUG_PRINT_ADDRESS */
133 in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6)
135 bzero(sin, sizeof(*sin));
136 sin->sin_len = sizeof(struct sockaddr_in);
137 sin->sin_family = AF_INET;
138 sin->sin_port = sin6->sin6_port;
139 sin->sin_addr.s_addr = sin6->sin6_addr.__u6_addr.__u6_addr32[3];
143 sctp_getaddrlen(sa_family_t family)
147 struct sctp_assoc_value av;
149 av.assoc_value = family;
152 sd = socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP);
153 #elif defined(AF_INET6)
154 sd = socket(AF_INET6, SOCK_SEQPACKET, IPPROTO_SCTP);
161 ret = getsockopt(sd, IPPROTO_SCTP, SCTP_GET_ADDR_LEN, &av, &siz);
164 return ((int)av.assoc_value);
171 sctp_connectx(int sd, const struct sockaddr *addrs, int addrcnt,
174 char buf[SCTP_STACK_BUF_SIZE];
175 int i, ret, cnt, *aa;
177 const struct sockaddr *at;
179 size_t len = sizeof(int);
181 /* validate the address count and list */
182 if ((addrs == NULL) || (addrcnt <= 0)) {
188 cpto = ((caddr_t)buf + sizeof(int));
189 /* validate all the addresses and get the size */
190 for (i = 0; i < addrcnt; i++) {
191 if (at->sa_family == AF_INET) {
192 if (at->sa_len != sizeof(struct sockaddr_in)) {
196 memcpy(cpto, at, at->sa_len);
197 cpto = ((caddr_t)cpto + at->sa_len);
199 } else if (at->sa_family == AF_INET6) {
200 if (at->sa_len != sizeof(struct sockaddr_in6)) {
204 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)at)->sin6_addr)) {
205 in6_sin6_2_sin((struct sockaddr_in *)cpto, (struct sockaddr_in6 *)at);
206 cpto = ((caddr_t)cpto + sizeof(struct sockaddr_in));
207 len += sizeof(struct sockaddr_in);
209 memcpy(cpto, at, at->sa_len);
210 cpto = ((caddr_t)cpto + at->sa_len);
217 if (len > (sizeof(buf) - sizeof(int))) {
218 /* Never enough memory */
222 at = (struct sockaddr *)((caddr_t)at + at->sa_len);
225 /* do we have any? */
232 ret = setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X, (void *)buf,
234 if ((ret == 0) && id) {
235 p_id = (sctp_assoc_t *) buf;
242 sctp_bindx(int sd, struct sockaddr *addrs, int addrcnt, int flags)
244 struct sctp_getaddresses *gaddrs;
246 struct sockaddr_in *sin;
247 struct sockaddr_in6 *sin6;
252 /* validate the flags */
253 if ((flags != SCTP_BINDX_ADD_ADDR) &&
254 (flags != SCTP_BINDX_REM_ADDR)) {
258 /* validate the address count and list */
259 if ((addrcnt <= 0) || (addrs == NULL)) {
263 argsz = (sizeof(struct sockaddr_storage) +
264 sizeof(struct sctp_getaddresses));
265 gaddrs = (struct sctp_getaddresses *)calloc(1, argsz);
266 if (gaddrs == NULL) {
270 /* First pre-screen the addresses */
272 for (i = 0; i < addrcnt; i++) {
273 if (sa->sa_family == AF_INET) {
274 if (sa->sa_len != sizeof(struct sockaddr_in))
276 sin = (struct sockaddr_in *)sa;
278 /* non-zero port, check or save */
280 /* Check against our port */
281 if (sport != sin->sin_port) {
285 /* save off the port */
286 sport = sin->sin_port;
289 } else if (sa->sa_family == AF_INET6) {
290 if (sa->sa_len != sizeof(struct sockaddr_in6))
292 sin6 = (struct sockaddr_in6 *)sa;
293 if (sin6->sin6_port) {
294 /* non-zero port, check or save */
296 /* Check against our port */
297 if (sport != sin6->sin6_port) {
301 /* save off the port */
302 sport = sin6->sin6_port;
306 /* invalid address family specified */
310 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
314 * Now if there was a port mentioned, assure that the first address
315 * has that port to make sure it fails or succeeds correctly.
318 sin = (struct sockaddr_in *)sa;
319 sin->sin_port = sport;
321 for (i = 0; i < addrcnt; i++) {
322 if (sa->sa_family == AF_INET) {
323 if (sa->sa_len != sizeof(struct sockaddr_in))
325 } else if (sa->sa_family == AF_INET6) {
326 if (sa->sa_len != sizeof(struct sockaddr_in6))
329 /* invalid address family specified */
335 memset(gaddrs, 0, argsz);
336 gaddrs->sget_assoc_id = 0;
337 memcpy(gaddrs->addr, sa, sa->sa_len);
338 if (setsockopt(sd, IPPROTO_SCTP, flags, gaddrs,
339 (socklen_t) argsz) != 0) {
343 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
351 sctp_opt_info(int sd, sctp_assoc_t id, int opt, void *arg, socklen_t * size)
359 ((struct sctp_rtoinfo *)arg)->srto_assoc_id = id;
362 ((struct sctp_assocparams *)arg)->sasoc_assoc_id = id;
364 case SCTP_DEFAULT_SEND_PARAM:
365 ((struct sctp_assocparams *)arg)->sasoc_assoc_id = id;
367 case SCTP_PRIMARY_ADDR:
368 ((struct sctp_setprim *)arg)->ssp_assoc_id = id;
370 case SCTP_PEER_ADDR_PARAMS:
371 ((struct sctp_paddrparams *)arg)->spp_assoc_id = id;
374 ((struct sctp_assoc_value *)arg)->assoc_id = id;
377 ((struct sctp_authkey *)arg)->sca_assoc_id = id;
379 case SCTP_AUTH_ACTIVE_KEY:
380 ((struct sctp_authkeyid *)arg)->scact_assoc_id = id;
382 case SCTP_DELAYED_SACK:
383 ((struct sctp_sack_info *)arg)->sack_assoc_id = id;
386 ((struct sctp_assoc_value *)arg)->assoc_id = id;
389 ((struct sctp_status *)arg)->sstat_assoc_id = id;
391 case SCTP_GET_PEER_ADDR_INFO:
392 ((struct sctp_paddrinfo *)arg)->spinfo_assoc_id = id;
394 case SCTP_PEER_AUTH_CHUNKS:
395 ((struct sctp_authchunks *)arg)->gauth_assoc_id = id;
397 case SCTP_LOCAL_AUTH_CHUNKS:
398 ((struct sctp_authchunks *)arg)->gauth_assoc_id = id;
401 ((struct sctp_timeouts *)arg)->stimo_assoc_id = id;
404 ((struct sctp_event *)arg)->se_assoc_id = id;
406 case SCTP_DEFAULT_SNDINFO:
407 ((struct sctp_sndinfo *)arg)->snd_assoc_id = id;
409 case SCTP_DEFAULT_PRINFO:
410 ((struct sctp_default_prinfo *)arg)->pr_assoc_id = id;
412 case SCTP_PEER_ADDR_THLDS:
413 ((struct sctp_paddrthlds *)arg)->spt_assoc_id = id;
415 case SCTP_REMOTE_UDP_ENCAPS_PORT:
416 ((struct sctp_udpencaps *)arg)->sue_assoc_id = id;
421 return (getsockopt(sd, IPPROTO_SCTP, opt, arg, size));
425 sctp_getpaddrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
427 struct sctp_getaddresses *addrs;
434 if (raddrs == NULL) {
439 opt_len = (socklen_t) sizeof(sctp_assoc_t);
440 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_REMOTE_ADDR_SIZE,
441 &asoc, &opt_len) != 0) {
444 /* size required is returned in 'asoc' */
445 opt_len = (socklen_t) ((size_t)asoc + sizeof(struct sctp_getaddresses));
446 addrs = calloc(1, (size_t)opt_len);
451 addrs->sget_assoc_id = id;
452 /* Now lets get the array of addresses */
453 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_PEER_ADDRESSES,
454 addrs, &opt_len) != 0) {
458 *raddrs = (struct sockaddr *)&addrs->addr[0];
460 sa = (struct sockaddr *)&addrs->addr[0];
461 lim = (caddr_t)addrs + opt_len;
462 while (((caddr_t)sa < lim) && (sa->sa_len > 0)) {
463 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
470 sctp_freepaddrs(struct sockaddr *addrs)
472 /* Take away the hidden association id */
475 fr_addr = (void *)((caddr_t)addrs - sizeof(sctp_assoc_t));
481 sctp_getladdrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
483 struct sctp_getaddresses *addrs;
486 size_t size_of_addresses;
490 if (raddrs == NULL) {
494 size_of_addresses = 0;
495 opt_len = (socklen_t) sizeof(int);
496 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_LOCAL_ADDR_SIZE,
497 &size_of_addresses, &opt_len) != 0) {
501 if (size_of_addresses == 0) {
505 opt_len = (socklen_t) (size_of_addresses +
506 sizeof(struct sockaddr_storage) +
507 sizeof(struct sctp_getaddresses));
508 addrs = calloc(1, (size_t)opt_len);
513 addrs->sget_assoc_id = id;
514 /* Now lets get the array of addresses */
515 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_LOCAL_ADDRESSES, addrs,
521 *raddrs = (struct sockaddr *)&addrs->addr[0];
523 sa = (struct sockaddr *)&addrs->addr[0];
524 lim = (caddr_t)addrs + opt_len;
525 while (((caddr_t)sa < lim) && (sa->sa_len > 0)) {
526 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
533 sctp_freeladdrs(struct sockaddr *addrs)
535 /* Take away the hidden association id */
538 fr_addr = (void *)((caddr_t)addrs - sizeof(sctp_assoc_t));
548 const struct sockaddr *to,
556 #ifdef SYS_sctp_generic_sendmsg
557 struct sctp_sndrcvinfo sinfo;
559 memset(&sinfo, 0, sizeof(struct sctp_sndrcvinfo));
560 sinfo.sinfo_ppid = ppid;
561 sinfo.sinfo_flags = flags;
562 sinfo.sinfo_stream = stream_no;
563 sinfo.sinfo_timetolive = timetolive;
564 sinfo.sinfo_context = context;
565 sinfo.sinfo_assoc_id = 0;
566 return (syscall(SYS_sctp_generic_sendmsg, s,
567 data, len, to, tolen, &sinfo, 0));
571 struct sctp_sndrcvinfo *s_info;
573 char controlVector[SCTP_CONTROL_VEC_SIZE_RCV];
574 struct cmsghdr *cmsg;
575 struct sockaddr *who = NULL;
577 struct sockaddr_in in;
578 struct sockaddr_in6 in6;
582 ((to == NULL) || (tolen < sizeof(struct sockaddr)))) {
586 if (to && (tolen > 0)) {
587 if (to->sa_family == AF_INET) {
588 if (tolen != sizeof(struct sockaddr_in)) {
592 if ((to->sa_len > 0) &&
593 (to->sa_len != sizeof(struct sockaddr_in))) {
597 memcpy(&addr, to, sizeof(struct sockaddr_in));
598 addr.in.sin_len = sizeof(struct sockaddr_in);
599 } else if (to->sa_family == AF_INET6) {
600 if (tolen != sizeof(struct sockaddr_in6)) {
604 if ((to->sa_len > 0) &&
605 (to->sa_len != sizeof(struct sockaddr_in6))) {
609 memcpy(&addr, to, sizeof(struct sockaddr_in6));
610 addr.in6.sin6_len = sizeof(struct sockaddr_in6);
612 errno = EAFNOSUPPORT;
615 who = (struct sockaddr *)&addr;
617 iov.iov_base = (char *)data;
621 msg.msg_name = (caddr_t)who;
622 msg.msg_namelen = who->sa_len;
624 msg.msg_name = (caddr_t)NULL;
629 msg.msg_control = (caddr_t)controlVector;
631 cmsg = (struct cmsghdr *)controlVector;
633 cmsg->cmsg_level = IPPROTO_SCTP;
634 cmsg->cmsg_type = SCTP_SNDRCV;
635 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
636 s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
638 s_info->sinfo_stream = stream_no;
639 s_info->sinfo_ssn = 0;
640 s_info->sinfo_flags = flags;
641 s_info->sinfo_ppid = ppid;
642 s_info->sinfo_context = context;
643 s_info->sinfo_assoc_id = 0;
644 s_info->sinfo_timetolive = timetolive;
646 msg.msg_controllen = cmsg->cmsg_len;
647 sz = sendmsg(s, &msg, 0);
654 sctp_getassocid(int sd, struct sockaddr *sa)
656 struct sctp_paddrinfo sp;
659 /* First get the assoc id */
661 memset(&sp, 0, sizeof(sp));
662 memcpy((caddr_t)&sp.spinfo_address, sa, sa->sa_len);
664 if (getsockopt(sd, IPPROTO_SCTP,
665 SCTP_GET_PEER_ADDR_INFO, &sp, &siz) != 0) {
666 return ((sctp_assoc_t) 0);
668 /* We depend on the fact that 0 can never be returned */
669 return (sp.spinfo_assoc_id);
673 sctp_send(int sd, const void *data, size_t len,
674 const struct sctp_sndrcvinfo *sinfo,
678 #ifdef SYS_sctp_generic_sendmsg
679 struct sockaddr *to = NULL;
681 return (syscall(SYS_sctp_generic_sendmsg, sd,
682 data, len, to, 0, sinfo, flags));
687 struct sctp_sndrcvinfo *s_info;
688 char controlVector[SCTP_CONTROL_VEC_SIZE_SND];
689 struct cmsghdr *cmsg;
695 iov.iov_base = (char *)data;
702 msg.msg_control = (caddr_t)controlVector;
704 cmsg = (struct cmsghdr *)controlVector;
706 cmsg->cmsg_level = IPPROTO_SCTP;
707 cmsg->cmsg_type = SCTP_SNDRCV;
708 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
709 s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
710 /* copy in the data */
713 msg.msg_controllen = cmsg->cmsg_len;
714 sz = sendmsg(sd, &msg, flags);
722 sctp_sendx(int sd, const void *msg, size_t msg_len,
723 struct sockaddr *addrs, int addrcnt,
724 struct sctp_sndrcvinfo *sinfo,
727 struct sctp_sndrcvinfo __sinfo;
729 int i, cnt, *aa, saved_errno;
739 #ifdef SYS_sctp_generic_sendmsg
744 * Quick way, we don't need to do a connectx so lets use the
748 return (syscall(SYS_sctp_generic_sendmsg, sd,
749 msg, msg_len, addrs, l, sinfo, flags));
756 /* validate all the addresses and get the size */
757 for (i = 0; i < addrcnt; i++) {
758 if (at->sa_family == AF_INET) {
759 add_len = sizeof(struct sockaddr_in);
760 } else if (at->sa_family == AF_INET6) {
761 add_len = sizeof(struct sockaddr_in6);
767 at = (struct sockaddr *)((caddr_t)at + add_len);
770 /* do we have any? */
783 memcpy((caddr_t)aa, addrs, (size_t)(len - sizeof(int)));
784 ret = setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_DELAYED, (void *)buf,
789 if (errno == EALREADY) {
798 memset(&__sinfo, 0, sizeof(__sinfo));
800 sinfo->sinfo_assoc_id = sctp_getassocid(sd, addrs);
801 if (sinfo->sinfo_assoc_id == 0) {
802 (void)setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_COMPLETE, (void *)addrs,
803 (socklen_t) addrs->sa_len);
807 ret = sctp_send(sd, msg, msg_len, sinfo, flags);
810 (void)setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_COMPLETE, (void *)addrs,
811 (socklen_t) addrs->sa_len);
818 sctp_sendmsgx(int sd,
821 struct sockaddr *addrs,
829 struct sctp_sndrcvinfo sinfo;
831 memset((void *)&sinfo, 0, sizeof(struct sctp_sndrcvinfo));
832 sinfo.sinfo_ppid = ppid;
833 sinfo.sinfo_flags = flags;
834 sinfo.sinfo_ssn = stream_no;
835 sinfo.sinfo_timetolive = timetolive;
836 sinfo.sinfo_context = context;
837 return sctp_sendx(sd, msg, len, addrs, addrcnt, &sinfo, 0);
844 struct sockaddr *from,
846 struct sctp_sndrcvinfo *sinfo,
849 #ifdef SYS_sctp_generic_recvmsg
854 return (syscall(SYS_sctp_generic_recvmsg, s,
855 &iov, 1, from, fromlen, sinfo, msg_flags));
857 struct sctp_sndrcvinfo *s_info;
861 char controlVector[SCTP_CONTROL_VEC_SIZE_RCV];
862 struct cmsghdr *cmsg;
864 if (msg_flags == NULL) {
871 msg.msg_name = (caddr_t)from;
875 msg.msg_namelen = *fromlen;
878 msg.msg_control = (caddr_t)controlVector;
879 msg.msg_controllen = sizeof(controlVector);
881 sz = recvmsg(s, &msg, *msg_flags);
882 *msg_flags = msg.msg_flags;
888 sinfo->sinfo_assoc_id = 0;
890 if ((msg.msg_controllen) && sinfo) {
892 * parse through and see if we find the sctp_sndrcvinfo (if
893 * the user wants it).
895 cmsg = (struct cmsghdr *)controlVector;
897 if ((cmsg->cmsg_len == 0) || (cmsg->cmsg_len > msg.msg_controllen)) {
900 if (cmsg->cmsg_level == IPPROTO_SCTP) {
901 if (cmsg->cmsg_type == SCTP_SNDRCV) {
903 s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
904 /* Copy it to the user */
908 } else if (cmsg->cmsg_type == SCTP_EXTRCV) {
910 * Got it, presumably the user has
911 * asked for this extra info, so the
912 * structure holds more room :-D
914 s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
915 /* Copy it to the user */
917 memcpy(sinfo, s_info, sizeof(struct sctp_extrcvinfo));
923 cmsg = CMSG_NXTHDR(&msg, cmsg);
932 const struct iovec *iov,
934 struct sockaddr *from,
938 unsigned int *infotype,
941 char ctlbuf[SCTP_CONTROL_VEC_SIZE_RCV];
943 struct cmsghdr *cmsg;
945 struct sctp_rcvinfo *rcvinfo;
946 struct sctp_nxtinfo *nxtinfo;
948 if (((info != NULL) && (infolen == NULL)) |
949 ((info == NULL) && (infolen != NULL) && (*infolen != 0)) ||
950 ((info != NULL) && (infotype == NULL))) {
955 *infotype = SCTP_RECVV_NOINFO;
958 if (fromlen == NULL) {
961 msg.msg_namelen = *fromlen;
963 msg.msg_iov = (struct iovec *)iov;
964 msg.msg_iovlen = iovlen;
965 msg.msg_control = ctlbuf;
966 msg.msg_controllen = sizeof(ctlbuf);
968 n = recvmsg(sd, &msg, *flags);
969 *flags = msg.msg_flags;
971 (msg.msg_controllen > 0) &&
972 (infotype != NULL) &&
977 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
978 if (cmsg->cmsg_level != IPPROTO_SCTP) {
981 if (cmsg->cmsg_type == SCTP_RCVINFO) {
982 rcvinfo = (struct sctp_rcvinfo *)CMSG_DATA(cmsg);
984 if (cmsg->cmsg_type == SCTP_NXTINFO) {
985 nxtinfo = (struct sctp_nxtinfo *)CMSG_DATA(cmsg);
987 if (rcvinfo && nxtinfo) {
993 if (*infolen >= sizeof(struct sctp_recvv_rn)) {
994 struct sctp_recvv_rn *rn_info;
996 rn_info = (struct sctp_recvv_rn *)info;
997 rn_info->recvv_rcvinfo = *rcvinfo;
998 rn_info->recvv_nxtinfo = *nxtinfo;
999 *infolen = (socklen_t) sizeof(struct sctp_recvv_rn);
1000 *infotype = SCTP_RECVV_RN;
1003 if (*infolen >= sizeof(struct sctp_rcvinfo)) {
1004 memcpy(info, rcvinfo, sizeof(struct sctp_rcvinfo));
1005 *infolen = (socklen_t) sizeof(struct sctp_rcvinfo);
1006 *infotype = SCTP_RECVV_RCVINFO;
1009 } else if (nxtinfo) {
1010 if (*infolen >= sizeof(struct sctp_rcvinfo)) {
1011 memcpy(info, nxtinfo, sizeof(struct sctp_nxtinfo));
1012 *infolen = (socklen_t) sizeof(struct sctp_nxtinfo);
1013 *infotype = SCTP_RECVV_NXTINFO;
1022 const struct iovec *iov, int iovcnt,
1023 struct sockaddr *addrs, int addrcnt,
1024 void *info, socklen_t infolen, unsigned int infotype,
1032 struct sctp_sendv_spa *spa_info;
1033 struct cmsghdr *cmsg;
1035 struct sockaddr *addr;
1036 struct sockaddr_in *addr_in;
1037 struct sockaddr_in6 *addr_in6;
1039 if ((addrcnt < 0) ||
1041 ((addrs == NULL) && (addrcnt > 0)) ||
1042 ((addrs != NULL) && (addrcnt == 0)) ||
1043 ((iov == NULL) && (iovcnt > 0)) ||
1044 ((iov != NULL) && (iovcnt == 0))) {
1048 cmsgbuf = malloc(CMSG_SPACE(sizeof(struct sctp_sndinfo)) +
1049 CMSG_SPACE(sizeof(struct sctp_prinfo)) +
1050 CMSG_SPACE(sizeof(struct sctp_authinfo)) +
1051 (size_t)addrcnt * CMSG_SPACE(sizeof(struct in6_addr)));
1052 if (cmsgbuf == NULL) {
1056 msg.msg_control = cmsgbuf;
1057 msg.msg_controllen = 0;
1058 cmsg = (struct cmsghdr *)cmsgbuf;
1060 case SCTP_SENDV_NOINFO:
1061 if ((infolen != 0) || (info != NULL)) {
1067 case SCTP_SENDV_SNDINFO:
1068 if ((info == NULL) || (infolen < sizeof(struct sctp_sndinfo))) {
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), info, 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)));
1080 case SCTP_SENDV_PRINFO:
1081 if ((info == NULL) || (infolen < sizeof(struct sctp_prinfo))) {
1086 cmsg->cmsg_level = IPPROTO_SCTP;
1087 cmsg->cmsg_type = SCTP_PRINFO;
1088 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_prinfo));
1089 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_prinfo));
1090 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_prinfo));
1091 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_prinfo)));
1093 case SCTP_SENDV_AUTHINFO:
1094 if ((info == NULL) || (infolen < sizeof(struct sctp_authinfo))) {
1099 cmsg->cmsg_level = IPPROTO_SCTP;
1100 cmsg->cmsg_type = SCTP_AUTHINFO;
1101 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_authinfo));
1102 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_authinfo));
1103 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_authinfo));
1104 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_authinfo)));
1106 case SCTP_SENDV_SPA:
1107 if ((info == NULL) || (infolen < sizeof(struct sctp_sendv_spa))) {
1112 spa_info = (struct sctp_sendv_spa *)info;
1113 if (spa_info->sendv_flags & SCTP_SEND_SNDINFO_VALID) {
1114 cmsg->cmsg_level = IPPROTO_SCTP;
1115 cmsg->cmsg_type = SCTP_SNDINFO;
1116 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndinfo));
1117 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_sndinfo, sizeof(struct sctp_sndinfo));
1118 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_sndinfo));
1119 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_sndinfo)));
1121 if (spa_info->sendv_flags & SCTP_SEND_PRINFO_VALID) {
1122 cmsg->cmsg_level = IPPROTO_SCTP;
1123 cmsg->cmsg_type = SCTP_PRINFO;
1124 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_prinfo));
1125 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_prinfo, sizeof(struct sctp_prinfo));
1126 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_prinfo));
1127 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_prinfo)));
1129 if (spa_info->sendv_flags & SCTP_SEND_AUTHINFO_VALID) {
1130 cmsg->cmsg_level = IPPROTO_SCTP;
1131 cmsg->cmsg_type = SCTP_AUTHINFO;
1132 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_authinfo));
1133 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_authinfo, sizeof(struct sctp_authinfo));
1134 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_authinfo));
1135 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_authinfo)));
1144 msg.msg_name = NULL;
1145 msg.msg_namelen = 0;
1147 for (i = 0; i < addrcnt; i++) {
1148 switch (addr->sa_family) {
1150 addr_len = (socklen_t) sizeof(struct sockaddr_in);
1151 addr_in = (struct sockaddr_in *)addr;
1152 if (addr_in->sin_len != addr_len) {
1158 port = addr_in->sin_port;
1160 if (port == addr_in->sin_port) {
1161 cmsg->cmsg_level = IPPROTO_SCTP;
1162 cmsg->cmsg_type = SCTP_DSTADDRV4;
1163 cmsg->cmsg_len = CMSG_LEN(sizeof(struct in_addr));
1164 memcpy(CMSG_DATA(cmsg), &addr_in->sin_addr, sizeof(struct in_addr));
1165 msg.msg_controllen += CMSG_SPACE(sizeof(struct in_addr));
1166 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct in_addr)));
1175 addr_len = (socklen_t) sizeof(struct sockaddr_in6);
1176 addr_in6 = (struct sockaddr_in6 *)addr;
1177 if (addr_in6->sin6_len != addr_len) {
1183 port = addr_in6->sin6_port;
1185 if (port == addr_in6->sin6_port) {
1186 cmsg->cmsg_level = IPPROTO_SCTP;
1187 cmsg->cmsg_type = SCTP_DSTADDRV6;
1188 cmsg->cmsg_len = CMSG_LEN(sizeof(struct in6_addr));
1189 memcpy(CMSG_DATA(cmsg), &addr_in6->sin6_addr, sizeof(struct in6_addr));
1190 msg.msg_controllen += CMSG_SPACE(sizeof(struct in6_addr));
1191 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct in6_addr)));
1205 msg.msg_name = addr;
1206 msg.msg_namelen = addr_len;
1208 addr = (struct sockaddr *)((caddr_t)addr + addr_len);
1210 if (msg.msg_controllen == 0) {
1211 msg.msg_control = NULL;
1213 msg.msg_iov = (struct iovec *)iov;
1214 msg.msg_iovlen = iovcnt;
1216 ret = sendmsg(sd, &msg, flags);
1222 #if !defined(SYS_sctp_peeloff) && !defined(HAVE_SCTP_PEELOFF_SOCKOPT)
1225 sctp_peeloff(int sd, sctp_assoc_t assoc_id)
1227 /* NOT supported, return invalid sd */
1233 #if defined(SYS_sctp_peeloff) && !defined(HAVE_SCTP_PEELOFF_SOCKOPT)
1235 sctp_peeloff(int sd, sctp_assoc_t assoc_id)
1237 return (syscall(SYS_sctp_peeloff, sd, assoc_id));
1243 #undef SCTP_CONTROL_VEC_SIZE_SND
1244 #undef SCTP_CONTROL_VEC_SIZE_RCV
1245 #undef SCTP_STACK_BUF_SIZE