2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2008-2011, by Randall Stewart. All rights reserved.
4 * Copyright (c) 2008-2011, 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("$FreeBSD$");
40 #include <sys/types.h>
41 #include <sys/socket.h>
42 #include <sys/errno.h>
43 #include <sys/syscall.h>
45 #include <netinet/in.h>
46 #include <arpa/inet.h>
47 #include <netinet/sctp_uio.h>
48 #include <netinet/sctp.h>
50 #include <net/if_dl.h>
52 #ifndef IN6_IS_ADDR_V4MAPPED
53 #define IN6_IS_ADDR_V4MAPPED(a) \
54 ((*(const uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
55 (*(const uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
56 (*(const uint32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
60 #define SCTP_CONTROL_VEC_SIZE_SND 8192
61 #define SCTP_CONTROL_VEC_SIZE_RCV 16384
62 #define SCTP_STACK_BUF_SIZE 2048
64 #ifdef SCTP_DEBUG_PRINT_ADDRESS
66 #define SCTP_STRING_BUF_SZ 256
69 SCTPPrintAnAddress(struct sockaddr *a)
71 char stringToPrint[SCTP_STRING_BUF_SZ];
79 if (a->sa_family == AF_INET) {
80 srcaddr = (char *)&((struct sockaddr_in *)a)->sin_addr;
81 txt = "IPv4 Address: ";
82 prt = ntohs(((struct sockaddr_in *)a)->sin_port);
83 } else if (a->sa_family == AF_INET6) {
84 srcaddr = (char *)&((struct sockaddr_in6 *)a)->sin6_addr;
85 prt = ntohs(((struct sockaddr_in6 *)a)->sin6_port);
86 txt = "IPv6 Address: ";
87 } else if (a->sa_family == AF_LINK) {
89 char tbuf[SCTP_STRING_BUF_SZ];
90 u_char adbuf[SCTP_STRING_BUF_SZ];
91 struct sockaddr_dl *dl;
93 dl = (struct sockaddr_dl *)a;
94 strncpy(tbuf, dl->sdl_data, dl->sdl_nlen);
95 tbuf[dl->sdl_nlen] = 0;
96 printf("Intf:%s (len:%d)Interface index:%d type:%x(%d) ll-len:%d ",
104 memcpy(adbuf, LLADDR(dl), dl->sdl_alen);
105 for (i = 0; i < dl->sdl_alen; i++) {
106 printf("%2.2x", adbuf[i]);
107 if (i < (dl->sdl_alen - 1))
115 if (inet_ntop(a->sa_family, srcaddr, stringToPrint, sizeof(stringToPrint))) {
116 if (a->sa_family == AF_INET6) {
117 printf("%s%s:%d scope:%d\n",
118 txt, stringToPrint, prt,
119 ((struct sockaddr_in6 *)a)->sin6_scope_id);
121 printf("%s%s:%d\n", txt, stringToPrint, prt);
125 printf("%s unprintable?\n", txt);
129 #endif /* SCTP_DEBUG_PRINT_ADDRESS */
132 in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6)
134 bzero(sin, sizeof(*sin));
135 sin->sin_len = sizeof(struct sockaddr_in);
136 sin->sin_family = AF_INET;
137 sin->sin_port = sin6->sin6_port;
138 sin->sin_addr.s_addr = sin6->sin6_addr.__u6_addr.__u6_addr32[3];
142 sctp_getaddrlen(sa_family_t family)
146 struct sctp_assoc_value av;
148 av.assoc_value = family;
151 sd = socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP);
152 #elif defined(AF_INET6)
153 sd = socket(AF_INET6, SOCK_SEQPACKET, IPPROTO_SCTP);
160 ret = getsockopt(sd, IPPROTO_SCTP, SCTP_GET_ADDR_LEN, &av, &siz);
163 return ((int)av.assoc_value);
170 sctp_connectx(int sd, const struct sockaddr *addrs, int addrcnt,
173 char buf[SCTP_STACK_BUF_SIZE];
174 int i, ret, cnt, *aa;
176 const struct sockaddr *at;
178 size_t len = sizeof(int);
180 /* validate the address count and list */
181 if ((addrs == NULL) || (addrcnt <= 0)) {
187 cpto = ((caddr_t)buf + sizeof(int));
188 /* validate all the addresses and get the size */
189 for (i = 0; i < addrcnt; i++) {
190 if (at->sa_family == AF_INET) {
191 if (at->sa_len != sizeof(struct sockaddr_in)) {
195 memcpy(cpto, at, at->sa_len);
196 cpto = ((caddr_t)cpto + at->sa_len);
198 } else if (at->sa_family == AF_INET6) {
199 if (at->sa_len != sizeof(struct sockaddr_in6)) {
203 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)at)->sin6_addr)) {
204 len += sizeof(struct sockaddr_in);
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;
251 /* validate the flags */
252 if ((flags != SCTP_BINDX_ADD_ADDR) &&
253 (flags != SCTP_BINDX_REM_ADDR)) {
257 /* validate the address count and list */
258 if ((addrcnt <= 0) || (addrs == NULL)) {
262 argsz = (sizeof(struct sockaddr_storage) +
263 sizeof(struct sctp_getaddresses));
264 gaddrs = (struct sctp_getaddresses *)calloc(1, argsz);
265 if (gaddrs == NULL) {
269 /* First pre-screen the addresses */
271 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 + sz);
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++) {
323 if (sa->sa_family == AF_INET) {
324 if (sa->sa_len != sizeof(struct sockaddr_in))
326 } else if (sa->sa_family == AF_INET6) {
327 if (sa->sa_len != sizeof(struct sockaddr_in6))
330 /* invalid address family specified */
336 memset(gaddrs, 0, argsz);
337 gaddrs->sget_assoc_id = 0;
338 memcpy(gaddrs->addr, sa, sz);
339 if (setsockopt(sd, IPPROTO_SCTP, flags, gaddrs,
340 (socklen_t) argsz) != 0) {
344 sa = (struct sockaddr *)((caddr_t)sa + sz);
352 sctp_opt_info(int sd, sctp_assoc_t id, int opt, void *arg, socklen_t * size)
360 ((struct sctp_rtoinfo *)arg)->srto_assoc_id = id;
363 ((struct sctp_assocparams *)arg)->sasoc_assoc_id = id;
365 case SCTP_DEFAULT_SEND_PARAM:
366 ((struct sctp_assocparams *)arg)->sasoc_assoc_id = id;
368 case SCTP_PRIMARY_ADDR:
369 ((struct sctp_setprim *)arg)->ssp_assoc_id = id;
371 case SCTP_PEER_ADDR_PARAMS:
372 ((struct sctp_paddrparams *)arg)->spp_assoc_id = id;
375 ((struct sctp_assoc_value *)arg)->assoc_id = id;
378 ((struct sctp_authkey *)arg)->sca_assoc_id = id;
380 case SCTP_AUTH_ACTIVE_KEY:
381 ((struct sctp_authkeyid *)arg)->scact_assoc_id = id;
383 case SCTP_DELAYED_SACK:
384 ((struct sctp_sack_info *)arg)->sack_assoc_id = id;
387 ((struct sctp_assoc_value *)arg)->assoc_id = id;
390 ((struct sctp_status *)arg)->sstat_assoc_id = id;
392 case SCTP_GET_PEER_ADDR_INFO:
393 ((struct sctp_paddrinfo *)arg)->spinfo_assoc_id = id;
395 case SCTP_PEER_AUTH_CHUNKS:
396 ((struct sctp_authchunks *)arg)->gauth_assoc_id = id;
398 case SCTP_LOCAL_AUTH_CHUNKS:
399 ((struct sctp_authchunks *)arg)->gauth_assoc_id = id;
402 ((struct sctp_timeouts *)arg)->stimo_assoc_id = id;
405 ((struct sctp_event *)arg)->se_assoc_id = id;
407 case SCTP_DEFAULT_SNDINFO:
408 ((struct sctp_sndinfo *)arg)->snd_assoc_id = id;
410 case SCTP_DEFAULT_PRINFO:
411 ((struct sctp_default_prinfo *)arg)->pr_assoc_id = id;
413 case SCTP_PEER_ADDR_THLDS:
414 ((struct sctp_paddrthlds *)arg)->spt_assoc_id = id;
417 ((struct sctp_assoc_value *)arg)->assoc_id = id;
422 return (getsockopt(sd, IPPROTO_SCTP, opt, arg, size));
426 sctp_getpaddrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
428 struct sctp_getaddresses *addrs;
436 if (raddrs == NULL) {
441 siz = sizeof(sctp_assoc_t);
442 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_REMOTE_ADDR_SIZE,
446 /* size required is returned in 'asoc' */
448 siz += sizeof(struct sctp_getaddresses);
449 addrs = calloc(1, siz);
453 addrs->sget_assoc_id = id;
454 /* Now lets get the array of addresses */
455 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_PEER_ADDRESSES,
460 re = (struct sockaddr *)&addrs->addr[0];
463 sa = (struct sockaddr *)&addrs->addr[0];
464 lim = (caddr_t)addrs + siz;
465 while (((caddr_t)sa < lim) && (sa->sa_len > 0)) {
466 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
473 sctp_freepaddrs(struct sockaddr *addrs)
475 /* Take away the hidden association id */
478 fr_addr = (void *)((caddr_t)addrs - sizeof(sctp_assoc_t));
484 sctp_getladdrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
486 struct sctp_getaddresses *addrs;
490 int size_of_addresses;
494 if (raddrs == NULL) {
498 size_of_addresses = 0;
500 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_LOCAL_ADDR_SIZE,
501 &size_of_addresses, &siz) != 0) {
505 if (size_of_addresses == 0) {
509 siz = size_of_addresses + sizeof(struct sockaddr_storage);
510 siz += sizeof(struct sctp_getaddresses);
511 addrs = calloc(1, siz);
516 addrs->sget_assoc_id = id;
517 /* Now lets get the array of addresses */
518 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_LOCAL_ADDRESSES, addrs,
524 re = (struct sockaddr *)&addrs->addr[0];
527 sa = (struct sockaddr *)&addrs->addr[0];
528 lim = (caddr_t)addrs + siz;
529 while (((caddr_t)sa < lim) && (sa->sa_len > 0)) {
530 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
537 sctp_freeladdrs(struct sockaddr *addrs)
539 /* Take away the hidden association id */
542 fr_addr = (void *)((caddr_t)addrs - sizeof(sctp_assoc_t));
552 const struct sockaddr *to,
560 #ifdef SYS_sctp_generic_sendmsg
561 struct sctp_sndrcvinfo sinfo;
563 sinfo.sinfo_ppid = ppid;
564 sinfo.sinfo_flags = flags;
565 sinfo.sinfo_stream = stream_no;
566 sinfo.sinfo_timetolive = timetolive;
567 sinfo.sinfo_context = context;
568 sinfo.sinfo_assoc_id = 0;
569 return (syscall(SYS_sctp_generic_sendmsg, s,
570 data, len, to, tolen, &sinfo, 0));
574 struct sctp_sndrcvinfo *s_info;
576 char controlVector[SCTP_CONTROL_VEC_SIZE_RCV];
577 struct cmsghdr *cmsg;
578 struct sockaddr *who = NULL;
580 struct sockaddr_in in;
581 struct sockaddr_in6 in6;
585 ((to == NULL) || (tolen < sizeof(struct sockaddr)))) {
589 if (to && (tolen > 0)) {
590 if (to->sa_family == AF_INET) {
591 if (tolen != sizeof(struct sockaddr_in)) {
595 if ((to->sa_len > 0) &&
596 (to->sa_len != sizeof(struct sockaddr_in))) {
600 memcpy(&addr, to, sizeof(struct sockaddr_in));
601 addr.in.sin_len = sizeof(struct sockaddr_in);
602 } else if (to->sa_family == AF_INET6) {
603 if (tolen != sizeof(struct sockaddr_in6)) {
607 if ((to->sa_len > 0) &&
608 (to->sa_len != sizeof(struct sockaddr_in6))) {
612 memcpy(&addr, to, sizeof(struct sockaddr_in6));
613 addr.in6.sin6_len = sizeof(struct sockaddr_in6);
615 errno = EAFNOSUPPORT;
618 who = (struct sockaddr *)&addr;
620 iov.iov_base = (char *)data;
624 msg.msg_name = (caddr_t)who;
625 msg.msg_namelen = who->sa_len;
627 msg.msg_name = (caddr_t)NULL;
632 msg.msg_control = (caddr_t)controlVector;
634 cmsg = (struct cmsghdr *)controlVector;
636 cmsg->cmsg_level = IPPROTO_SCTP;
637 cmsg->cmsg_type = SCTP_SNDRCV;
638 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
639 s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
641 s_info->sinfo_stream = stream_no;
642 s_info->sinfo_ssn = 0;
643 s_info->sinfo_flags = flags;
644 s_info->sinfo_ppid = ppid;
645 s_info->sinfo_context = context;
646 s_info->sinfo_assoc_id = 0;
647 s_info->sinfo_timetolive = timetolive;
649 msg.msg_controllen = cmsg->cmsg_len;
650 sz = sendmsg(s, &msg, 0);
657 sctp_getassocid(int sd, struct sockaddr *sa)
659 struct sctp_paddrinfo sp;
662 /* First get the assoc id */
664 memset(&sp, 0, sizeof(sp));
665 memcpy((caddr_t)&sp.spinfo_address, sa, sa->sa_len);
667 if (getsockopt(sd, IPPROTO_SCTP,
668 SCTP_GET_PEER_ADDR_INFO, &sp, &siz) != 0) {
669 return ((sctp_assoc_t) 0);
671 /* We depend on the fact that 0 can never be returned */
672 return (sp.spinfo_assoc_id);
676 sctp_send(int sd, const void *data, size_t len,
677 const struct sctp_sndrcvinfo *sinfo,
681 #ifdef SYS_sctp_generic_sendmsg
682 struct sockaddr *to = NULL;
684 return (syscall(SYS_sctp_generic_sendmsg, sd,
685 data, len, to, 0, sinfo, flags));
690 struct sctp_sndrcvinfo *s_info;
691 char controlVector[SCTP_CONTROL_VEC_SIZE_SND];
692 struct cmsghdr *cmsg;
698 iov.iov_base = (char *)data;
705 msg.msg_control = (caddr_t)controlVector;
707 cmsg = (struct cmsghdr *)controlVector;
709 cmsg->cmsg_level = IPPROTO_SCTP;
710 cmsg->cmsg_type = SCTP_SNDRCV;
711 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
712 s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
713 /* copy in the data */
716 msg.msg_controllen = cmsg->cmsg_len;
717 sz = sendmsg(sd, &msg, flags);
725 sctp_sendx(int sd, const void *msg, size_t msg_len,
726 struct sockaddr *addrs, int addrcnt,
727 struct sctp_sndrcvinfo *sinfo,
730 struct sctp_sndrcvinfo __sinfo;
732 int i, cnt, *aa, saved_errno;
734 int add_len, len, no_end_cx = 0;
741 #ifdef SYS_sctp_generic_sendmsg
746 * Quick way, we don't need to do a connectx so lets use the
750 return (syscall(SYS_sctp_generic_sendmsg, sd,
751 msg, msg_len, addrs, l, sinfo, flags));
758 /* validate all the addresses and get the size */
759 for (i = 0; i < addrcnt; i++) {
760 if (at->sa_family == AF_INET) {
761 add_len = sizeof(struct sockaddr_in);
762 } else if (at->sa_family == AF_INET6) {
763 add_len = sizeof(struct sockaddr_in6);
769 at = (struct sockaddr *)((caddr_t)at + add_len);
772 /* do we have any? */
784 memcpy((caddr_t)aa, addrs, (len - sizeof(int)));
785 ret = setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_DELAYED, (void *)buf,
790 if (errno == EALREADY) {
799 memset(&__sinfo, 0, sizeof(__sinfo));
801 sinfo->sinfo_assoc_id = sctp_getassocid(sd, addrs);
802 if (sinfo->sinfo_assoc_id == 0) {
803 printf("Huh, can't get associd? TSNH!\n");
804 (void)setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_COMPLETE, (void *)addrs,
805 (socklen_t) addrs->sa_len);
809 ret = sctp_send(sd, msg, msg_len, sinfo, flags);
812 (void)setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_COMPLETE, (void *)addrs,
813 (socklen_t) addrs->sa_len);
820 sctp_sendmsgx(int sd,
823 struct sockaddr *addrs,
831 struct sctp_sndrcvinfo sinfo;
833 memset((void *)&sinfo, 0, sizeof(struct sctp_sndrcvinfo));
834 sinfo.sinfo_ppid = ppid;
835 sinfo.sinfo_flags = flags;
836 sinfo.sinfo_ssn = stream_no;
837 sinfo.sinfo_timetolive = timetolive;
838 sinfo.sinfo_context = context;
839 return sctp_sendx(sd, msg, len, addrs, addrcnt, &sinfo, 0);
846 struct sockaddr *from,
848 struct sctp_sndrcvinfo *sinfo,
851 #ifdef SYS_sctp_generic_recvmsg
856 return (syscall(SYS_sctp_generic_recvmsg, s,
857 &iov, 1, from, fromlen, sinfo, msg_flags));
859 struct sctp_sndrcvinfo *s_info;
864 char controlVector[SCTP_CONTROL_VEC_SIZE_RCV];
865 struct cmsghdr *cmsg;
867 if (msg_flags == NULL) {
874 msg.msg_name = (caddr_t)from;
878 msg.msg_namelen = *fromlen;
881 msg.msg_control = (caddr_t)controlVector;
882 msg.msg_controllen = sizeof(controlVector);
884 sz = recvmsg(s, &msg, *msg_flags);
885 *msg_flags = msg.msg_flags;
892 sinfo->sinfo_assoc_id = 0;
894 if ((msg.msg_controllen) && sinfo) {
896 * parse through and see if we find the sctp_sndrcvinfo (if
897 * the user wants it).
899 cmsg = (struct cmsghdr *)controlVector;
901 if ((cmsg->cmsg_len == 0) || (cmsg->cmsg_len > msg.msg_controllen)) {
904 if (cmsg->cmsg_level == IPPROTO_SCTP) {
905 if (cmsg->cmsg_type == SCTP_SNDRCV) {
907 s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
908 /* Copy it to the user */
913 } else if (cmsg->cmsg_type == SCTP_EXTRCV) {
915 * Got it, presumably the user has
916 * asked for this extra info, so the
917 * structure holds more room :-D
919 s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
920 /* Copy it to the user */
922 memcpy(sinfo, s_info, sizeof(struct sctp_extrcvinfo));
929 cmsg = CMSG_NXTHDR(&msg, cmsg);
938 const struct iovec *iov,
940 struct sockaddr *from,
944 unsigned int *infotype,
947 char ctlbuf[SCTP_CONTROL_VEC_SIZE_RCV];
949 struct cmsghdr *cmsg;
951 struct sctp_rcvinfo *rcvinfo;
952 struct sctp_nxtinfo *nxtinfo;
954 if (((info != NULL) && (infolen == NULL)) |
955 ((info == NULL) && (infolen != NULL) && (*infolen != 0)) ||
956 ((info != NULL) && (infotype == NULL))) {
961 *infotype = SCTP_RECVV_NOINFO;
964 if (fromlen == NULL) {
967 msg.msg_namelen = *fromlen;
969 msg.msg_iov = (struct iovec *)iov;
970 msg.msg_iovlen = iovlen;
971 msg.msg_control = ctlbuf;
972 msg.msg_controllen = sizeof(ctlbuf);
974 n = recvmsg(sd, &msg, *flags);
975 *flags = msg.msg_flags;
977 (msg.msg_controllen > 0) &&
978 (infotype != NULL) &&
983 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
984 if (cmsg->cmsg_level != IPPROTO_SCTP) {
987 if (cmsg->cmsg_type == SCTP_RCVINFO) {
988 rcvinfo = (struct sctp_rcvinfo *)CMSG_DATA(cmsg);
990 if (cmsg->cmsg_type == SCTP_NXTINFO) {
991 nxtinfo = (struct sctp_nxtinfo *)CMSG_DATA(cmsg);
993 if (rcvinfo && nxtinfo) {
999 if (*infolen >= sizeof(struct sctp_recvv_rn)) {
1000 struct sctp_recvv_rn *rn_info;
1002 rn_info = (struct sctp_recvv_rn *)info;
1003 rn_info->recvv_rcvinfo = *rcvinfo;
1004 rn_info->recvv_nxtinfo = *nxtinfo;
1005 *infolen = (socklen_t) sizeof(struct sctp_recvv_rn);
1006 *infotype = SCTP_RECVV_RN;
1009 if (*infolen >= sizeof(struct sctp_rcvinfo)) {
1010 memcpy(info, rcvinfo, sizeof(struct sctp_rcvinfo));
1011 *infolen = (socklen_t) sizeof(struct sctp_rcvinfo);
1012 *infotype = SCTP_RECVV_RCVINFO;
1015 } else if (nxtinfo) {
1016 if (*infolen >= sizeof(struct sctp_rcvinfo)) {
1017 memcpy(info, nxtinfo, sizeof(struct sctp_nxtinfo));
1018 *infolen = (socklen_t) sizeof(struct sctp_nxtinfo);
1019 *infotype = SCTP_RECVV_NXTINFO;
1028 const struct iovec *iov, int iovcnt,
1029 struct sockaddr *addrs, int addrcnt,
1030 void *info, socklen_t infolen, unsigned int infotype,
1038 struct sctp_sendv_spa *spa_info;
1039 struct cmsghdr *cmsg;
1041 struct sockaddr *addr;
1042 struct sockaddr_in *addr_in;
1043 struct sockaddr_in6 *addr_in6;
1045 if ((addrcnt < 0) ||
1047 ((addrs == NULL) && (addrcnt > 0)) ||
1048 ((addrs != NULL) && (addrcnt == 0)) ||
1049 ((iov == NULL) && (iovcnt > 0)) ||
1050 ((iov != NULL) && (iovcnt == 0))) {
1054 cmsgbuf = malloc(CMSG_SPACE(sizeof(struct sctp_sndinfo)) +
1055 CMSG_SPACE(sizeof(struct sctp_prinfo)) +
1056 CMSG_SPACE(sizeof(struct sctp_authinfo)) +
1057 addrcnt * CMSG_SPACE(sizeof(struct in6_addr)));
1058 if (cmsgbuf == NULL) {
1062 msg.msg_control = cmsgbuf;
1063 msg.msg_controllen = 0;
1064 cmsg = (struct cmsghdr *)cmsgbuf;
1066 case SCTP_SENDV_NOINFO:
1067 if ((infolen != 0) || (info != NULL)) {
1073 case SCTP_SENDV_SNDINFO:
1074 if ((info == NULL) || (infolen < sizeof(struct sctp_sndinfo))) {
1079 cmsg->cmsg_level = IPPROTO_SCTP;
1080 cmsg->cmsg_type = SCTP_SNDINFO;
1081 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndinfo));
1082 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_sndinfo));
1083 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_sndinfo));
1084 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_sndinfo)));
1086 case SCTP_SENDV_PRINFO:
1087 if ((info == NULL) || (infolen < sizeof(struct sctp_prinfo))) {
1092 cmsg->cmsg_level = IPPROTO_SCTP;
1093 cmsg->cmsg_type = SCTP_PRINFO;
1094 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_prinfo));
1095 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_prinfo));
1096 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_prinfo));
1097 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_prinfo)));
1099 case SCTP_SENDV_AUTHINFO:
1100 if ((info == NULL) || (infolen < sizeof(struct sctp_authinfo))) {
1105 cmsg->cmsg_level = IPPROTO_SCTP;
1106 cmsg->cmsg_type = SCTP_AUTHINFO;
1107 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_authinfo));
1108 memcpy(CMSG_DATA(cmsg), info, sizeof(struct sctp_authinfo));
1109 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_authinfo));
1110 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_authinfo)));
1112 case SCTP_SENDV_SPA:
1113 if ((info == NULL) || (infolen < sizeof(struct sctp_sendv_spa))) {
1118 spa_info = (struct sctp_sendv_spa *)info;
1119 if (spa_info->sendv_flags & SCTP_SEND_SNDINFO_VALID) {
1120 cmsg->cmsg_level = IPPROTO_SCTP;
1121 cmsg->cmsg_type = SCTP_SNDINFO;
1122 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndinfo));
1123 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_sndinfo, sizeof(struct sctp_sndinfo));
1124 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_sndinfo));
1125 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_sndinfo)));
1127 if (spa_info->sendv_flags & SCTP_SEND_PRINFO_VALID) {
1128 cmsg->cmsg_level = IPPROTO_SCTP;
1129 cmsg->cmsg_type = SCTP_PRINFO;
1130 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_prinfo));
1131 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_prinfo, sizeof(struct sctp_prinfo));
1132 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_prinfo));
1133 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_prinfo)));
1135 if (spa_info->sendv_flags & SCTP_SEND_AUTHINFO_VALID) {
1136 cmsg->cmsg_level = IPPROTO_SCTP;
1137 cmsg->cmsg_type = SCTP_AUTHINFO;
1138 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_authinfo));
1139 memcpy(CMSG_DATA(cmsg), &spa_info->sendv_authinfo, sizeof(struct sctp_authinfo));
1140 msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_authinfo));
1141 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct sctp_authinfo)));
1150 msg.msg_name = NULL;
1151 msg.msg_namelen = 0;
1153 for (i = 0; i < addrcnt; i++) {
1154 switch (addr->sa_family) {
1156 addr_len = (socklen_t) sizeof(struct sockaddr_in);
1157 addr_in = (struct sockaddr_in *)addr;
1158 if (addr_in->sin_len != addr_len) {
1164 port = addr_in->sin_port;
1166 if (port == addr_in->sin_port) {
1167 cmsg->cmsg_level = IPPROTO_SCTP;
1168 cmsg->cmsg_type = SCTP_DSTADDRV4;
1169 cmsg->cmsg_len = CMSG_LEN(sizeof(struct in_addr));
1170 memcpy(CMSG_DATA(cmsg), &addr_in->sin_addr, sizeof(struct in_addr));
1171 msg.msg_controllen += CMSG_SPACE(sizeof(struct in_addr));
1172 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct in_addr)));
1181 addr_len = (socklen_t) sizeof(struct sockaddr_in6);
1182 addr_in6 = (struct sockaddr_in6 *)addr;
1183 if (addr_in6->sin6_len != addr_len) {
1189 port = addr_in6->sin6_port;
1191 if (port == addr_in6->sin6_port) {
1192 cmsg->cmsg_level = IPPROTO_SCTP;
1193 cmsg->cmsg_type = SCTP_DSTADDRV6;
1194 cmsg->cmsg_len = CMSG_LEN(sizeof(struct in6_addr));
1195 memcpy(CMSG_DATA(cmsg), &addr_in6->sin6_addr, sizeof(struct in6_addr));
1196 msg.msg_controllen += CMSG_SPACE(sizeof(struct in6_addr));
1197 cmsg = (struct cmsghdr *)((caddr_t)cmsg + CMSG_SPACE(sizeof(struct in6_addr)));
1211 msg.msg_name = addr;
1212 msg.msg_namelen = addr_len;
1214 addr = (struct sockaddr *)((caddr_t)addr + addr_len);
1216 if (msg.msg_controllen == 0) {
1217 msg.msg_control = NULL;
1219 msg.msg_iov = (struct iovec *)iov;
1220 msg.msg_iovlen = iovcnt;
1222 ret = sendmsg(sd, &msg, flags);
1228 #if !defined(SYS_sctp_peeloff) && !defined(HAVE_SCTP_PEELOFF_SOCKOPT)
1231 sctp_peeloff(int sd, sctp_assoc_t assoc_id)
1233 /* NOT supported, return invalid sd */
1239 #if defined(SYS_sctp_peeloff) && !defined(HAVE_SCTP_PEELOFF_SOCKOPT)
1241 sctp_peeloff(int sd, sctp_assoc_t assoc_id)
1243 return (syscall(SYS_sctp_peeloff, sd, assoc_id));
1249 #undef SCTP_CONTROL_VEC_SIZE_SND
1250 #undef SCTP_CONTROL_VEC_SIZE_RCV
1251 #undef SCTP_STACK_BUF_SIZE