1 /* $KAME: sctp_sys_calls.c,v 1.9 2004/08/17 06:08:53 itojun Exp $ */
4 * Copyright (C) 2002-2007 Cisco Systems Inc,
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the project nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
38 #include <sys/types.h>
39 #include <sys/socket.h>
40 #include <sys/errno.h>
41 #include <sys/syscall.h>
43 #include <netinet/in.h>
44 #include <arpa/inet.h>
45 #include <netinet/sctp_uio.h>
46 #include <netinet/sctp.h>
48 #include <net/if_dl.h>
50 #ifndef IN6_IS_ADDR_V4MAPPED
51 #define IN6_IS_ADDR_V4MAPPED(a) \
52 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
53 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
54 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
58 #define SCTP_CONTROL_VEC_SIZE_SND 8192
59 #define SCTP_CONTROL_VEC_SIZE_RCV 16384
60 #define SCTP_STACK_BUF_SIZE 2048
61 #define SCTP_SMALL_IOVEC_SIZE 2
63 #ifdef SCTP_DEBUG_PRINT_ADDRESS
65 #define SCTP_STRING_BUF_SZ 256
68 SCTPPrintAnAddress(struct sockaddr *a)
70 char stringToPrint[SCTP_STRING_BUF_SZ];
78 if (a->sa_family == AF_INET) {
79 srcaddr = (char *)&((struct sockaddr_in *)a)->sin_addr;
80 txt = "IPv4 Address: ";
81 prt = ntohs(((struct sockaddr_in *)a)->sin_port);
82 } else if (a->sa_family == AF_INET6) {
83 srcaddr = (char *)&((struct sockaddr_in6 *)a)->sin6_addr;
84 prt = ntohs(((struct sockaddr_in6 *)a)->sin6_port);
85 txt = "IPv6 Address: ";
86 } else if (a->sa_family == AF_LINK) {
88 char tbuf[SCTP_STRING_BUF_SZ];
89 u_char adbuf[SCTP_STRING_BUF_SZ];
90 struct sockaddr_dl *dl;
92 dl = (struct sockaddr_dl *)a;
93 strncpy(tbuf, dl->sdl_data, dl->sdl_nlen);
94 tbuf[dl->sdl_nlen] = 0;
95 printf("Intf:%s (len:%d)Interface index:%d type:%x(%d) ll-len:%d ",
103 memcpy(adbuf, LLADDR(dl), dl->sdl_alen);
104 for (i = 0; i < dl->sdl_alen; i++) {
105 printf("%2.2x", adbuf[i]);
106 if (i < (dl->sdl_alen - 1))
114 if (inet_ntop(a->sa_family, srcaddr, stringToPrint, sizeof(stringToPrint))) {
115 if (a->sa_family == AF_INET6) {
116 printf("%s%s:%d scope:%d\n",
117 txt, stringToPrint, prt,
118 ((struct sockaddr_in6 *)a)->sin6_scope_id);
120 printf("%s%s:%d\n", txt, stringToPrint, prt);
124 printf("%s unprintable?\n", txt);
128 #endif /* SCTP_DEBUG_PRINT_ADDRESS */
131 in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6)
133 bzero(sin, sizeof(*sin));
134 sin->sin_len = sizeof(struct sockaddr_in);
135 sin->sin_family = AF_INET;
136 sin->sin_port = sin6->sin6_port;
137 sin->sin_addr.s_addr = sin6->sin6_addr.__u6_addr.__u6_addr32[3];
141 sctp_getaddrlen(sa_family_t family)
145 struct sctp_assoc_value av;
147 av.assoc_value = family;
150 sd = socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP);
151 #elif defined(AF_INET6)
152 sd = socket(AF_INET6, SOCK_SEQPACKET, IPPROTO_SCTP);
157 error = getsockopt(sd, IPPROTO_SCTP, SCTP_GET_ADDR_LEN, &av, &siz);
160 return ((int)av.assoc_value);
167 sctp_connectx(int sd, const struct sockaddr *addrs, int addrcnt,
170 char buf[SCTP_STACK_BUF_SIZE];
171 int i, ret, cnt, *aa;
173 const struct sockaddr *at;
175 size_t len = sizeof(int);
177 /* validate the address count and list */
178 if ((addrs == NULL) || (addrcnt <= 0)) {
184 cpto = ((caddr_t)buf + sizeof(int));
185 /* validate all the addresses and get the size */
186 for (i = 0; i < addrcnt; i++) {
187 if (at->sa_family == AF_INET) {
188 if (at->sa_len != sizeof(struct sockaddr_in)) {
192 memcpy(cpto, at, at->sa_len);
193 cpto = ((caddr_t)cpto + at->sa_len);
195 } else if (at->sa_family == AF_INET6) {
196 if (at->sa_len != sizeof(struct sockaddr_in6)) {
200 if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)at)->sin6_addr)) {
201 len += sizeof(struct sockaddr_in);
202 in6_sin6_2_sin((struct sockaddr_in *)cpto, (struct sockaddr_in6 *)at);
203 cpto = ((caddr_t)cpto + sizeof(struct sockaddr_in));
204 len += sizeof(struct sockaddr_in);
206 memcpy(cpto, at, at->sa_len);
207 cpto = ((caddr_t)cpto + at->sa_len);
214 if (len > (sizeof(buf) - sizeof(int))) {
215 /* Never enough memory */
219 at = (struct sockaddr *)((caddr_t)at + at->sa_len);
222 /* do we have any? */
229 ret = setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X, (void *)buf,
231 if ((ret == 0) && id) {
232 p_id = (sctp_assoc_t *) buf;
239 sctp_bindx(int sd, struct sockaddr *addrs, int addrcnt, int flags)
241 struct sctp_getaddresses *gaddrs;
243 struct sockaddr_in *sin;
244 struct sockaddr_in6 *sin6;
248 /* validate the flags */
249 if ((flags != SCTP_BINDX_ADD_ADDR) &&
250 (flags != SCTP_BINDX_REM_ADDR)) {
254 /* validate the address count and list */
255 if ((addrcnt <= 0) || (addrs == NULL)) {
259 argsz = (sizeof(struct sockaddr_storage) +
260 sizeof(struct sctp_getaddresses));
261 gaddrs = (struct sctp_getaddresses *)calloc(1, argsz);
262 if (gaddrs == NULL) {
266 /* First pre-screen the addresses */
268 for (i = 0; i < addrcnt; i++) {
270 if (sa->sa_family == AF_INET) {
271 if (sa->sa_len != sizeof(struct sockaddr_in))
273 sin = (struct sockaddr_in *)sa;
275 /* non-zero port, check or save */
277 /* Check against our port */
278 if (sport != sin->sin_port) {
282 /* save off the port */
283 sport = sin->sin_port;
286 } else if (sa->sa_family == AF_INET6) {
287 if (sa->sa_len != sizeof(struct sockaddr_in6))
289 sin6 = (struct sockaddr_in6 *)sa;
290 if (sin6->sin6_port) {
291 /* non-zero port, check or save */
293 /* Check against our port */
294 if (sport != sin6->sin6_port) {
298 /* save off the port */
299 sport = sin6->sin6_port;
303 /* invalid address family specified */
311 * Now if there was a port mentioned, assure that the first address
312 * has that port to make sure it fails or succeeds correctly.
315 sin = (struct sockaddr_in *)sa;
316 sin->sin_port = sport;
318 for (i = 0; i < addrcnt; i++) {
320 if (sa->sa_family == AF_INET) {
321 if (sa->sa_len != sizeof(struct sockaddr_in))
323 } else if (sa->sa_family == AF_INET6) {
324 if (sa->sa_len != sizeof(struct sockaddr_in6))
327 /* invalid address family specified */
333 memset(gaddrs, 0, argsz);
334 gaddrs->sget_assoc_id = 0;
335 memcpy(gaddrs->addr, sa, sz);
336 if (setsockopt(sd, IPPROTO_SCTP, flags, gaddrs,
337 (socklen_t) argsz) != 0) {
341 sa = (struct sockaddr *)((caddr_t)sa + sz);
349 sctp_opt_info(int sd, sctp_assoc_t id, int opt, void *arg, socklen_t * size)
357 ((struct sctp_rtoinfo *)arg)->srto_assoc_id = id;
360 ((struct sctp_assocparams *)arg)->sasoc_assoc_id = id;
362 case SCTP_DEFAULT_SEND_PARAM:
363 ((struct sctp_assocparams *)arg)->sasoc_assoc_id = id;
365 case SCTP_SET_PEER_PRIMARY_ADDR:
366 ((struct sctp_setpeerprim *)arg)->sspp_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;
404 return (getsockopt(sd, IPPROTO_SCTP, opt, arg, size));
408 sctp_getpaddrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
410 struct sctp_getaddresses *addrs;
418 if (raddrs == NULL) {
423 siz = sizeof(sctp_assoc_t);
424 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_REMOTE_ADDR_SIZE,
428 /* size required is returned in 'asoc' */
430 siz += sizeof(struct sctp_getaddresses);
431 addrs = calloc(1, siz);
435 addrs->sget_assoc_id = id;
436 /* Now lets get the array of addresses */
437 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_PEER_ADDRESSES,
442 re = (struct sockaddr *)&addrs->addr[0];
445 sa = (struct sockaddr *)&addrs->addr[0];
446 lim = (caddr_t)addrs + siz;
447 while (((caddr_t)sa < lim) && (sa->sa_len > 0)) {
448 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
455 sctp_freepaddrs(struct sockaddr *addrs)
457 /* Take away the hidden association id */
460 fr_addr = (void *)((caddr_t)addrs - sizeof(sctp_assoc_t));
466 sctp_getladdrs(int sd, sctp_assoc_t id, struct sockaddr **raddrs)
468 struct sctp_getaddresses *addrs;
472 int size_of_addresses;
476 if (raddrs == NULL) {
480 size_of_addresses = 0;
482 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_LOCAL_ADDR_SIZE,
483 &size_of_addresses, &siz) != 0) {
487 if (size_of_addresses == 0) {
491 siz = size_of_addresses + sizeof(struct sockaddr_storage);
492 siz += sizeof(struct sctp_getaddresses);
493 addrs = calloc(1, siz);
498 addrs->sget_assoc_id = id;
499 /* Now lets get the array of addresses */
500 if (getsockopt(sd, IPPROTO_SCTP, SCTP_GET_LOCAL_ADDRESSES, addrs,
506 re = (struct sockaddr *)&addrs->addr[0];
509 sa = (struct sockaddr *)&addrs->addr[0];
510 lim = (caddr_t)addrs + siz;
511 while (((caddr_t)sa < lim) && (sa->sa_len > 0)) {
512 sa = (struct sockaddr *)((caddr_t)sa + sa->sa_len);
519 sctp_freeladdrs(struct sockaddr *addrs)
521 /* Take away the hidden association id */
524 fr_addr = (void *)((caddr_t)addrs - sizeof(sctp_assoc_t));
534 const struct sockaddr *to,
539 u_int32_t timetolive,
542 #ifdef SYS_sctp_generic_sendmsg
543 struct sctp_sndrcvinfo sinfo;
545 sinfo.sinfo_ppid = ppid;
546 sinfo.sinfo_flags = flags;
547 sinfo.sinfo_stream = stream_no;
548 sinfo.sinfo_timetolive = timetolive;
549 sinfo.sinfo_context = context;
550 sinfo.sinfo_assoc_id = 0;
551 return (syscall(SYS_sctp_generic_sendmsg, s,
552 data, len, to, tolen, &sinfo, 0));
557 struct sctp_sndrcvinfo *s_info;
558 struct iovec iov[SCTP_SMALL_IOVEC_SIZE];
559 char controlVector[SCTP_CONTROL_VEC_SIZE_RCV];
560 struct cmsghdr *cmsg;
561 struct sockaddr *who = NULL;
563 struct sockaddr_in in;
564 struct sockaddr_in6 in6;
568 fprintf(io, "sctp_sendmsg(sd:%d, data:%x, len:%d, to:%x, tolen:%d, ppid:%x, flags:%x str:%d ttl:%d ctx:%x\n",
580 if ((tolen > 0) && ((to == NULL) || (tolen < sizeof(struct sockaddr)))) {
584 if (to && (tolen > 0)) {
585 if (to->sa_family == AF_INET) {
586 if (tolen != sizeof(struct sockaddr_in)) {
590 if ((to->sa_len > 0) && (to->sa_len != sizeof(struct sockaddr_in))) {
594 memcpy(&addr, to, sizeof(struct sockaddr_in));
595 addr.in.sin_len = sizeof(struct sockaddr_in);
596 } else if (to->sa_family == AF_INET6) {
597 if (tolen != sizeof(struct sockaddr_in6)) {
601 if ((to->sa_len > 0) && (to->sa_len != sizeof(struct sockaddr_in6))) {
605 memcpy(&addr, to, sizeof(struct sockaddr_in6));
606 addr.in6.sin6_len = sizeof(struct sockaddr_in6);
608 errno = EAFNOSUPPORT;
611 who = (struct sockaddr *)&addr;
613 iov[0].iov_base = (char *)data;
614 iov[0].iov_len = len;
615 iov[1].iov_base = NULL;
619 msg.msg_name = (caddr_t)who;
620 msg.msg_namelen = who->sa_len;
622 msg.msg_name = (caddr_t)NULL;
627 msg.msg_control = (caddr_t)controlVector;
629 cmsg = (struct cmsghdr *)controlVector;
631 cmsg->cmsg_level = IPPROTO_SCTP;
632 cmsg->cmsg_type = SCTP_SNDRCV;
633 cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
634 s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
636 s_info->sinfo_stream = stream_no;
637 s_info->sinfo_ssn = 0;
638 s_info->sinfo_flags = flags;
639 s_info->sinfo_ppid = ppid;
640 s_info->sinfo_context = context;
641 s_info->sinfo_assoc_id = 0;
642 s_info->sinfo_timetolive = timetolive;
644 msg.msg_controllen = cmsg->cmsg_len;
645 sz = sendmsg(s, &msg, 0);
652 sctp_getassocid(int sd, struct sockaddr *sa)
654 struct sctp_paddrinfo sp;
657 /* First get the assoc id */
659 memset(&sp, 0, sizeof(sp));
660 memcpy((caddr_t)&sp.spinfo_address, sa, sa->sa_len);
662 if (getsockopt(sd, IPPROTO_SCTP,
663 SCTP_GET_PEER_ADDR_INFO, &sp, &siz) != 0) {
664 return ((sctp_assoc_t) 0);
666 /* We depend on the fact that 0 can never be returned */
667 return (sp.spinfo_assoc_id);
671 sctp_send(int sd, const void *data, size_t len,
672 const struct sctp_sndrcvinfo *sinfo,
676 #ifdef SYS_sctp_generic_sendmsg
677 struct sockaddr *to = NULL;
679 return (syscall(SYS_sctp_generic_sendmsg, sd,
680 data, len, to, 0, sinfo, flags));
684 struct iovec iov[SCTP_SMALL_IOVEC_SIZE];
685 struct sctp_sndrcvinfo *s_info;
686 char controlVector[SCTP_CONTROL_VEC_SIZE_SND];
687 struct cmsghdr *cmsg;
693 iov[0].iov_base = (char *)data;
694 iov[0].iov_len = len;
695 iov[1].iov_base = NULL;
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,
728 int i, cnt, *aa, saved_errno;
730 int add_len, len, no_end_cx = 0;
737 #ifdef SYS_sctp_generic_sendmsg
738 if (addrcnt < SCTP_SMALL_IOVEC_SIZE) {
742 * Quick way, we don't need to do a connectx so lets use the
746 return (syscall(SYS_sctp_generic_sendmsg, sd,
747 msg, msg_len, addrs, l, sinfo, flags));
754 /* validate all the addresses and get the size */
755 for (i = 0; i < addrcnt; i++) {
756 if (at->sa_family == AF_INET) {
757 add_len = sizeof(struct sockaddr_in);
758 } else if (at->sa_family == AF_INET6) {
759 add_len = sizeof(struct sockaddr_in6);
765 at = (struct sockaddr *)((caddr_t)at + add_len);
768 /* do we have any? */
780 memcpy((caddr_t)aa, addrs, (len - sizeof(int)));
781 ret = setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_DELAYED, (void *)buf,
786 if (errno == EALREADY) {
793 sinfo->sinfo_assoc_id = sctp_getassocid(sd, addrs);
794 if (sinfo->sinfo_assoc_id == 0) {
795 printf("Huh, can't get associd? TSNH!\n");
796 (void)setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_COMPLETE, (void *)addrs,
797 (socklen_t) addrs->sa_len);
801 ret = sctp_send(sd, msg, msg_len, sinfo, flags);
804 (void)setsockopt(sd, IPPROTO_SCTP, SCTP_CONNECT_X_COMPLETE, (void *)addrs,
805 (socklen_t) addrs->sa_len);
812 sctp_sendmsgx(int sd,
815 struct sockaddr *addrs,
820 u_int32_t timetolive,
823 struct sctp_sndrcvinfo sinfo;
825 memset((void *)&sinfo, 0, sizeof(struct sctp_sndrcvinfo));
826 sinfo.sinfo_ppid = ppid;
827 sinfo.sinfo_flags = flags;
828 sinfo.sinfo_ssn = stream_no;
829 sinfo.sinfo_timetolive = timetolive;
830 sinfo.sinfo_context = context;
831 return sctp_sendx(sd, msg, len, addrs, addrcnt, &sinfo, 0);
838 struct sockaddr *from,
840 struct sctp_sndrcvinfo *sinfo,
843 #ifdef SYS_sctp_generic_recvmsg
844 struct iovec iov[SCTP_SMALL_IOVEC_SIZE];
846 iov[0].iov_base = dbuf;
847 iov[0].iov_len = len;
848 return (syscall(SYS_sctp_generic_recvmsg, s,
849 iov, 1, from, fromlen, sinfo, msg_flags));
851 struct sctp_sndrcvinfo *s_info;
855 struct iovec iov[SCTP_SMALL_IOVEC_SIZE];
856 char controlVector[SCTP_CONTROL_VEC_SIZE_RCV];
857 struct cmsghdr *cmsg;
859 if (msg_flags == NULL) {
864 iov[0].iov_base = dbuf;
865 iov[0].iov_len = len;
866 iov[1].iov_base = NULL;
868 msg.msg_name = (caddr_t)from;
872 msg.msg_namelen = *fromlen;
875 msg.msg_control = (caddr_t)controlVector;
876 msg.msg_controllen = sizeof(controlVector);
878 sz = recvmsg(s, &msg, *msg_flags);
884 *msg_flags = msg.msg_flags;
886 sinfo->sinfo_assoc_id = 0;
888 if ((msg.msg_controllen) && sinfo) {
890 * parse through and see if we find the sctp_sndrcvinfo (if
891 * the user wants it).
893 cmsg = (struct cmsghdr *)controlVector;
895 if ((cmsg->cmsg_len == 0) || (cmsg->cmsg_len > msg.msg_controllen)) {
898 if (cmsg->cmsg_level == IPPROTO_SCTP) {
899 if (cmsg->cmsg_type == SCTP_SNDRCV) {
901 s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
902 /* Copy it to the user */
907 } else if (cmsg->cmsg_type == SCTP_EXTRCV) {
909 * Got it, presumably the user has
910 * asked for this extra info, so the
911 * structure holds more room :-D
913 s_info = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
914 /* Copy it to the user */
916 memcpy(sinfo, s_info, sizeof(struct sctp_extrcvinfo));
923 cmsg = CMSG_NXTHDR(&msg, cmsg);
931 #if defined(HAVE_SCTP_PEELOFF_SOCKOPT)
932 #include <netinet/sctp_peeloff.h>
935 sctp_peeloff(int sd, sctp_assoc_t assoc_id)
937 struct sctp_peeloff_opt peeloff;
941 /* set in the socket option params */
942 memset(&peeloff, 0, sizeof(peeloff));
944 peeloff.assoc_id = assoc_id;
945 optlen = sizeof(peeloff);
946 error = getsockopt(sd, IPPROTO_SCTP, SCTP_PEELOFF, (void *)&peeloff,
952 return (peeloff.new_sd);
958 #if !defined(SYS_sctp_peeloff) && !defined(HAVE_SCTP_PEELOFF_SOCKOPT)
961 sctp_peeloff(int sd, sctp_assoc_t assoc_id)
963 /* NOT supported, return invalid sd */
969 #if defined(SYS_sctp_peeloff) && !defined(HAVE_SCTP_PEELOFF_SOCKOPT)
971 sctp_peeloff(int sd, sctp_assoc_t assoc_id)
973 return (syscall(SYS_sctp_peeloff, sd, assoc_id));
979 #undef SCTP_CONTROL_VEC_SIZE_SND
980 #undef SCTP_CONTROL_VEC_SIZE_RCV
981 #undef SCTP_STACK_BUF_SIZE
982 #undef SCTP_SMALL_IOVEC_SIZE