Squashed 'third_party/rawrtc/usrsctp/' content from commit bd1a92db3
Change-Id: If227cd6edd3243ac26044056b7427ae5bca71ef8
git-subtree-dir: third_party/rawrtc/usrsctp
git-subtree-split: bd1a92db338ba1e57453637959a127032bb566ff
diff --git a/usrsctplib/netinet6/sctp6_usrreq.c b/usrsctplib/netinet6/sctp6_usrreq.c
new file mode 100644
index 0000000..faa7d47
--- /dev/null
+++ b/usrsctplib/netinet6/sctp6_usrreq.c
@@ -0,0 +1,1877 @@
+/*-
+ * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
+ * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * a) Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * b) Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the distribution.
+ *
+ * c) Neither the name of Cisco Systems, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef __FreeBSD__
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: head/sys/netinet6/sctp6_usrreq.c 310590 2016-12-26 11:06:41Z tuexen $");
+#endif
+
+#include <netinet/sctp_os.h>
+#ifdef INET6
+#ifdef __FreeBSD__
+#include <sys/proc.h>
+#endif
+#include <netinet/sctp_pcb.h>
+#include <netinet/sctp_header.h>
+#include <netinet/sctp_var.h>
+#include <netinet6/sctp6_var.h>
+#include <netinet/sctp_sysctl.h>
+#include <netinet/sctp_output.h>
+#include <netinet/sctp_uio.h>
+#include <netinet/sctp_asconf.h>
+#include <netinet/sctputil.h>
+#include <netinet/sctp_indata.h>
+#include <netinet/sctp_timer.h>
+#include <netinet/sctp_auth.h>
+#include <netinet/sctp_input.h>
+#include <netinet/sctp_output.h>
+#include <netinet/sctp_bsd_addr.h>
+#include <netinet/sctp_crc32.h>
+#if !defined(__Userspace_os_Windows)
+#include <netinet/icmp6.h>
+#include <netinet/udp.h>
+#endif
+
+#if defined(__APPLE__)
+#define APPLE_FILE_NO 9
+#endif
+#ifdef IPSEC
+#include <netipsec/ipsec.h>
+#include <netipsec/ipsec6.h>
+#endif /* IPSEC */
+
+#if !defined(__Userspace__)
+extern struct protosw inetsw[];
+#endif
+#if defined(__Panda__) || defined(__Userspace__)
+int ip6_v6only=0;
+#endif
+#if defined(__Userspace__)
+#ifdef INET
+void
+in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6)
+{
+#if defined(__Userspace_os_Windows)
+ uint32_t temp;
+#endif
+ bzero(sin, sizeof(*sin));
+#ifdef HAVE_SIN_LEN
+ sin->sin_len = sizeof(struct sockaddr_in);
+#endif
+ sin->sin_family = AF_INET;
+ sin->sin_port = sin6->sin6_port;
+#if defined(__Userspace_os_Windows)
+ temp = sin6->sin6_addr.s6_addr16[7];
+ temp = temp << 16;
+ temp = temp | sin6->sin6_addr.s6_addr16[6];
+ sin->sin_addr.s_addr = temp;
+#else
+ sin->sin_addr.s_addr = sin6->sin6_addr.s6_addr32[3];
+#endif
+}
+
+void
+in6_sin6_2_sin_in_sock(struct sockaddr *nam)
+{
+ struct sockaddr_in *sin_p;
+ struct sockaddr_in6 sin6;
+
+ /* save original sockaddr_in6 addr and convert it to sockaddr_in */
+ sin6 = *(struct sockaddr_in6 *)nam;
+ sin_p = (struct sockaddr_in *)nam;
+ in6_sin6_2_sin(sin_p, &sin6);
+}
+
+void
+in6_sin_2_v4mapsin6(struct sockaddr_in *sin, struct sockaddr_in6 *sin6)
+{
+ bzero(sin6, sizeof(struct sockaddr_in6));
+ sin6->sin6_family = AF_INET6;
+#ifdef HAVE_SIN6_LEN
+ sin6->sin6_len = sizeof(struct sockaddr_in6);
+#endif
+ sin6->sin6_port = sin->sin_port;
+#if defined(__Userspace_os_Windows)
+ ((uint32_t *)&sin6->sin6_addr)[0] = 0;
+ ((uint32_t *)&sin6->sin6_addr)[1] = 0;
+ ((uint32_t *)&sin6->sin6_addr)[2] = htonl(0xffff);
+ ((uint32_t *)&sin6->sin6_addr)[3] = sin->sin_addr.s_addr;
+#else
+ sin6->sin6_addr.s6_addr32[0] = 0;
+ sin6->sin6_addr.s6_addr32[1] = 0;
+ sin6->sin6_addr.s6_addr32[2] = htonl(0xffff);
+ sin6->sin6_addr.s6_addr32[3] = sin->sin_addr.s_addr;
+#endif
+}
+#endif
+#endif
+
+#if !defined(__Userspace__)
+int
+#if defined(__APPLE__) || defined(__FreeBSD__)
+sctp6_input_with_port(struct mbuf **i_pak, int *offp, uint16_t port)
+#elif defined( __Panda__)
+sctp6_input(pakhandle_type *i_pak)
+#else
+sctp6_input(struct mbuf **i_pak, int *offp, int proto)
+#endif
+{
+ struct mbuf *m;
+ int iphlen;
+ uint32_t vrf_id;
+ uint8_t ecn_bits;
+ struct sockaddr_in6 src, dst;
+ struct ip6_hdr *ip6;
+ struct sctphdr *sh;
+ struct sctp_chunkhdr *ch;
+ int length, offset;
+#if !defined(SCTP_WITH_NO_CSUM)
+ uint8_t compute_crc;
+#endif
+#if defined(__FreeBSD__)
+ uint32_t mflowid;
+ uint8_t mflowtype;
+ uint16_t fibnum;
+#endif
+#if !(defined(__APPLE__) || defined (__FreeBSD__))
+ uint16_t port = 0;
+#endif
+
+#if defined(__Panda__)
+ /* This is Evil, but its the only way to make panda work right. */
+ iphlen = sizeof(struct ip6_hdr);
+#else
+ iphlen = *offp;
+#endif
+ if (SCTP_GET_PKT_VRFID(*i_pak, vrf_id)) {
+ SCTP_RELEASE_PKT(*i_pak);
+ return (IPPROTO_DONE);
+ }
+ m = SCTP_HEADER_TO_CHAIN(*i_pak);
+#ifdef __Panda__
+ SCTP_DETACH_HEADER_FROM_CHAIN(*i_pak);
+ (void)SCTP_RELEASE_HEADER(*i_pak);
+#endif
+#ifdef SCTP_MBUF_LOGGING
+ /* Log in any input mbufs */
+ if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_MBUF_LOGGING_ENABLE) {
+ sctp_log_mbc(m, SCTP_MBUF_INPUT);
+ }
+#endif
+#ifdef SCTP_PACKET_LOGGING
+ if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LAST_PACKET_TRACING) {
+ sctp_packet_log(m);
+ }
+#endif
+#if defined(__FreeBSD__)
+#if __FreeBSD_version > 1000049
+ SCTPDBG(SCTP_DEBUG_CRCOFFLOAD,
+ "sctp6_input(): Packet of length %d received on %s with csum_flags 0x%b.\n",
+ m->m_pkthdr.len,
+ if_name(m->m_pkthdr.rcvif),
+ (int)m->m_pkthdr.csum_flags, CSUM_BITS);
+#elif __FreeBSD_version >= 800000
+ SCTPDBG(SCTP_DEBUG_CRCOFFLOAD,
+ "sctp6_input(): Packet of length %d received on %s with csum_flags 0x%x.\n",
+ m->m_pkthdr.len,
+ if_name(m->m_pkthdr.rcvif),
+ m->m_pkthdr.csum_flags);
+#else
+ SCTPDBG(SCTP_DEBUG_CRCOFFLOAD,
+ "sctp6_input(): Packet of length %d received on %s with csum_flags 0x%x.\n",
+ m->m_pkthdr.len,
+ m->m_pkthdr.rcvif->if_xname,
+ m->m_pkthdr.csum_flags);
+#endif
+#endif
+#if defined(__APPLE__)
+ SCTPDBG(SCTP_DEBUG_CRCOFFLOAD,
+ "sctp6_input(): Packet of length %d received on %s%d with csum_flags 0x%x.\n",
+ m->m_pkthdr.len,
+ m->m_pkthdr.rcvif->if_name,
+ m->m_pkthdr.rcvif->if_unit,
+ m->m_pkthdr.csum_flags);
+#endif
+#if defined(__Windows__)
+ SCTPDBG(SCTP_DEBUG_CRCOFFLOAD,
+ "sctp6_input(): Packet of length %d received on %s with csum_flags 0x%x.\n",
+ m->m_pkthdr.len,
+ m->m_pkthdr.rcvif->if_xname,
+ m->m_pkthdr.csum_flags);
+#endif
+#if defined(__FreeBSD__)
+ mflowid = m->m_pkthdr.flowid;
+ mflowtype = M_HASHTYPE_GET(m);
+ fibnum = M_GETFIB(m);
+#endif
+ SCTP_STAT_INCR(sctps_recvpackets);
+ SCTP_STAT_INCR_COUNTER64(sctps_inpackets);
+ /* Get IP, SCTP, and first chunk header together in the first mbuf. */
+ offset = iphlen + sizeof(struct sctphdr) + sizeof(struct sctp_chunkhdr);
+ ip6 = mtod(m, struct ip6_hdr *);
+ IP6_EXTHDR_GET(sh, struct sctphdr *, m, iphlen,
+ (int)(sizeof(struct sctphdr) + sizeof(struct sctp_chunkhdr)));
+ if (sh == NULL) {
+ SCTP_STAT_INCR(sctps_hdrops);
+ return (IPPROTO_DONE);
+ }
+ ch = (struct sctp_chunkhdr *)((caddr_t)sh + sizeof(struct sctphdr));
+ offset -= sizeof(struct sctp_chunkhdr);
+ memset(&src, 0, sizeof(struct sockaddr_in6));
+ src.sin6_family = AF_INET6;
+#ifdef HAVE_SIN6_LEN
+ src.sin6_len = sizeof(struct sockaddr_in6);
+#endif
+ src.sin6_port = sh->src_port;
+ src.sin6_addr = ip6->ip6_src;
+#if defined(__FreeBSD__)
+#if defined(__APPLE__)
+ /* XXX: This code should also be used on Apple */
+#endif
+ if (in6_setscope(&src.sin6_addr, m->m_pkthdr.rcvif, NULL) != 0) {
+ goto out;
+ }
+#endif
+ memset(&dst, 0, sizeof(struct sockaddr_in6));
+ dst.sin6_family = AF_INET6;
+#ifdef HAVE_SIN6_LEN
+ dst.sin6_len = sizeof(struct sockaddr_in6);
+#endif
+ dst.sin6_port = sh->dest_port;
+ dst.sin6_addr = ip6->ip6_dst;
+#if defined(__FreeBSD__)
+#if defined(__APPLE__)
+ /* XXX: This code should also be used on Apple */
+#endif
+ if (in6_setscope(&dst.sin6_addr, m->m_pkthdr.rcvif, NULL) != 0) {
+ goto out;
+ }
+#endif
+#if defined(__APPLE__)
+#if defined(NFAITH) && 0 < NFAITH
+ if (faithprefix(&dst.sin6_addr)) {
+ goto out;
+ }
+#endif
+#endif
+ length = ntohs(ip6->ip6_plen) + iphlen;
+ /* Validate mbuf chain length with IP payload length. */
+ if (SCTP_HEADER_LEN(m) != length) {
+ SCTPDBG(SCTP_DEBUG_INPUT1,
+ "sctp6_input() length:%d reported length:%d\n", length, SCTP_HEADER_LEN(m));
+ SCTP_STAT_INCR(sctps_hdrops);
+ goto out;
+ }
+ if (IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst)) {
+ goto out;
+ }
+ ecn_bits = ((ntohl(ip6->ip6_flow) >> 20) & 0x000000ff);
+#if defined(SCTP_WITH_NO_CSUM)
+ SCTP_STAT_INCR(sctps_recvnocrc);
+#else
+#if defined(__FreeBSD__) && __FreeBSD_version >= 800000
+ if (m->m_pkthdr.csum_flags & CSUM_SCTP_VALID) {
+ SCTP_STAT_INCR(sctps_recvhwcrc);
+ compute_crc = 0;
+ } else {
+#else
+ if (SCTP_BASE_SYSCTL(sctp_no_csum_on_loopback) &&
+ (IN6_ARE_ADDR_EQUAL(&src.sin6_addr, &dst.sin6_addr))) {
+ SCTP_STAT_INCR(sctps_recvnocrc);
+ compute_crc = 0;
+ } else {
+#endif
+ SCTP_STAT_INCR(sctps_recvswcrc);
+ compute_crc = 1;
+ }
+#endif
+ sctp_common_input_processing(&m, iphlen, offset, length,
+ (struct sockaddr *)&src,
+ (struct sockaddr *)&dst,
+ sh, ch,
+#if !defined(SCTP_WITH_NO_CSUM)
+ compute_crc,
+#endif
+ ecn_bits,
+#if defined(__FreeBSD__)
+ mflowtype, mflowid, fibnum,
+#endif
+ vrf_id, port);
+ out:
+ if (m) {
+ sctp_m_freem(m);
+ }
+ return (IPPROTO_DONE);
+}
+
+#if defined(__APPLE__)
+int
+sctp6_input(struct mbuf **i_pak, int *offp)
+{
+ return (sctp6_input_with_port(i_pak, offp, 0));
+}
+#endif
+
+#if defined(__FreeBSD__)
+int
+sctp6_input(struct mbuf **i_pak, int *offp, int proto SCTP_UNUSED)
+{
+ return (sctp6_input_with_port(i_pak, offp, 0));
+}
+#endif
+
+void
+sctp6_notify(struct sctp_inpcb *inp,
+ struct sctp_tcb *stcb,
+ struct sctp_nets *net,
+ uint8_t icmp6_type,
+ uint8_t icmp6_code,
+ uint16_t next_mtu)
+{
+#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
+ struct socket *so;
+#endif
+ int timer_stopped;
+
+ switch (icmp6_type) {
+ case ICMP6_DST_UNREACH:
+ if ((icmp6_code == ICMP6_DST_UNREACH_NOROUTE) ||
+ (icmp6_code == ICMP6_DST_UNREACH_ADMIN) ||
+ (icmp6_code == ICMP6_DST_UNREACH_BEYONDSCOPE) ||
+ (icmp6_code == ICMP6_DST_UNREACH_ADDR)) {
+ /* Mark the net unreachable. */
+ if (net->dest_state & SCTP_ADDR_REACHABLE) {
+ /* Ok that destination is not reachable */
+ net->dest_state &= ~SCTP_ADDR_REACHABLE;
+ net->dest_state &= ~SCTP_ADDR_PF;
+ sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
+ stcb, 0, (void *)net, SCTP_SO_NOT_LOCKED);
+ }
+ }
+ SCTP_TCB_UNLOCK(stcb);
+ break;
+ case ICMP6_PARAM_PROB:
+ /* Treat it like an ABORT. */
+ if (icmp6_code == ICMP6_PARAMPROB_NEXTHEADER) {
+ sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
+#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
+ so = SCTP_INP_SO(inp);
+ atomic_add_int(&stcb->asoc.refcnt, 1);
+ SCTP_TCB_UNLOCK(stcb);
+ SCTP_SOCKET_LOCK(so, 1);
+ SCTP_TCB_LOCK(stcb);
+ atomic_subtract_int(&stcb->asoc.refcnt, 1);
+#endif
+ (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
+ SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
+#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
+ SCTP_SOCKET_UNLOCK(so, 1);
+#endif
+ } else {
+ SCTP_TCB_UNLOCK(stcb);
+ }
+ break;
+ case ICMP6_PACKET_TOO_BIG:
+ if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
+ timer_stopped = 1;
+ sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
+ SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
+ } else {
+ timer_stopped = 0;
+ }
+ /* Update the path MTU. */
+ if (net->mtu > next_mtu) {
+ net->mtu = next_mtu;
+ if (net->port) {
+ net->mtu -= sizeof(struct udphdr);
+ }
+ }
+ /* Update the association MTU */
+ if (stcb->asoc.smallest_mtu > next_mtu) {
+ sctp_pathmtu_adjustment(stcb, next_mtu);
+ }
+ /* Finally, start the PMTU timer if it was running before. */
+ if (timer_stopped) {
+ sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
+ }
+ SCTP_TCB_UNLOCK(stcb);
+ break;
+ default:
+ SCTP_TCB_UNLOCK(stcb);
+ break;
+ }
+}
+
+void
+sctp6_ctlinput(int cmd, struct sockaddr *pktdst, void *d)
+{
+ struct ip6ctlparam *ip6cp;
+ struct sctp_inpcb *inp;
+ struct sctp_tcb *stcb;
+ struct sctp_nets *net;
+ struct sctphdr sh;
+ struct sockaddr_in6 src, dst;
+
+#ifdef HAVE_SA_LEN
+ if (pktdst->sa_family != AF_INET6 ||
+ pktdst->sa_len != sizeof(struct sockaddr_in6)) {
+#else
+ if (pktdst->sa_family != AF_INET6) {
+#endif
+ return;
+ }
+
+ if ((unsigned)cmd >= PRC_NCMDS) {
+ return;
+ }
+ if (PRC_IS_REDIRECT(cmd)) {
+ d = NULL;
+ } else if (inet6ctlerrmap[cmd] == 0) {
+ return;
+ }
+ /* If the parameter is from icmp6, decode it. */
+ if (d != NULL) {
+ ip6cp = (struct ip6ctlparam *)d;
+ } else {
+ ip6cp = (struct ip6ctlparam *)NULL;
+ }
+
+ if (ip6cp != NULL) {
+ /*
+ * XXX: We assume that when IPV6 is non NULL, M and OFF are
+ * valid.
+ */
+ if (ip6cp->ip6c_m == NULL) {
+ return;
+ }
+
+ /* Check if we can safely examine the ports and the
+ * verification tag of the SCTP common header.
+ */
+ if (ip6cp->ip6c_m->m_pkthdr.len <
+ (int32_t)(ip6cp->ip6c_off + offsetof(struct sctphdr, checksum))) {
+ return;
+ }
+
+ /* Copy out the port numbers and the verification tag. */
+ bzero(&sh, sizeof(sh));
+ m_copydata(ip6cp->ip6c_m,
+ ip6cp->ip6c_off,
+ sizeof(uint16_t) + sizeof(uint16_t) + sizeof(uint32_t),
+ (caddr_t)&sh);
+ memset(&src, 0, sizeof(struct sockaddr_in6));
+ src.sin6_family = AF_INET6;
+#ifdef HAVE_SIN6_LEN
+ src.sin6_len = sizeof(struct sockaddr_in6);
+#endif
+ src.sin6_port = sh.src_port;
+ src.sin6_addr = ip6cp->ip6c_ip6->ip6_src;
+#if defined(__FreeBSD__)
+ if (in6_setscope(&src.sin6_addr, ip6cp->ip6c_m->m_pkthdr.rcvif, NULL) != 0) {
+ return;
+ }
+#endif
+ memset(&dst, 0, sizeof(struct sockaddr_in6));
+ dst.sin6_family = AF_INET6;
+#ifdef HAVE_SIN6_LEN
+ dst.sin6_len = sizeof(struct sockaddr_in6);
+#endif
+ dst.sin6_port = sh.dest_port;
+ dst.sin6_addr = ip6cp->ip6c_ip6->ip6_dst;
+#if defined(__FreeBSD__)
+ if (in6_setscope(&dst.sin6_addr, ip6cp->ip6c_m->m_pkthdr.rcvif, NULL) != 0) {
+ return;
+ }
+#endif
+ inp = NULL;
+ net = NULL;
+ stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
+ (struct sockaddr *)&src,
+ &inp, &net, 1, SCTP_DEFAULT_VRFID);
+ if ((stcb != NULL) &&
+ (net != NULL) &&
+ (inp != NULL)) {
+ /* Check the verification tag */
+ if (ntohl(sh.v_tag) != 0) {
+ /*
+ * This must be the verification tag used for
+ * sending out packets. We don't consider
+ * packets reflecting the verification tag.
+ */
+ if (ntohl(sh.v_tag) != stcb->asoc.peer_vtag) {
+ SCTP_TCB_UNLOCK(stcb);
+ return;
+ }
+ } else {
+#if defined(__FreeBSD__)
+ if (ip6cp->ip6c_m->m_pkthdr.len >=
+ ip6cp->ip6c_off + sizeof(struct sctphdr) +
+ sizeof(struct sctp_chunkhdr) +
+ offsetof(struct sctp_init, a_rwnd)) {
+ /*
+ * In this case we can check if we
+ * got an INIT chunk and if the
+ * initiate tag matches.
+ */
+ uint32_t initiate_tag;
+ uint8_t chunk_type;
+
+ m_copydata(ip6cp->ip6c_m,
+ ip6cp->ip6c_off +
+ sizeof(struct sctphdr),
+ sizeof(uint8_t),
+ (caddr_t)&chunk_type);
+ m_copydata(ip6cp->ip6c_m,
+ ip6cp->ip6c_off +
+ sizeof(struct sctphdr) +
+ sizeof(struct sctp_chunkhdr),
+ sizeof(uint32_t),
+ (caddr_t)&initiate_tag);
+ if ((chunk_type != SCTP_INITIATION) ||
+ (ntohl(initiate_tag) != stcb->asoc.my_vtag)) {
+ SCTP_TCB_UNLOCK(stcb);
+ return;
+ }
+ } else {
+ SCTP_TCB_UNLOCK(stcb);
+ return;
+ }
+#else
+ SCTP_TCB_UNLOCK(stcb);
+ return;
+#endif
+ }
+ sctp6_notify(inp, stcb, net,
+ ip6cp->ip6c_icmp6->icmp6_type,
+ ip6cp->ip6c_icmp6->icmp6_code,
+ (uint16_t)ntohl(ip6cp->ip6c_icmp6->icmp6_mtu));
+ } else {
+#if defined(__FreeBSD__) && __FreeBSD_version < 500000
+ if (PRC_IS_REDIRECT(cmd) && (inp != NULL)) {
+ in6_rtchange((struct in6pcb *)inp,
+ inet6ctlerrmap[cmd]);
+ }
+#endif
+ if ((stcb == NULL) && (inp != NULL)) {
+ /* reduce inp's ref-count */
+ SCTP_INP_WLOCK(inp);
+ SCTP_INP_DECR_REF(inp);
+ SCTP_INP_WUNLOCK(inp);
+ }
+ if (stcb) {
+ SCTP_TCB_UNLOCK(stcb);
+ }
+ }
+ }
+}
+#endif
+
+/*
+ * this routine can probably be collasped into the one in sctp_userreq.c
+ * since they do the same thing and now we lookup with a sockaddr
+ */
+#ifdef __FreeBSD__
+static int
+sctp6_getcred(SYSCTL_HANDLER_ARGS)
+{
+ struct xucred xuc;
+ struct sockaddr_in6 addrs[2];
+ struct sctp_inpcb *inp;
+ struct sctp_nets *net;
+ struct sctp_tcb *stcb;
+ int error;
+ uint32_t vrf_id;
+
+#if defined(__FreeBSD__) || defined(__APPLE__)
+ vrf_id = SCTP_DEFAULT_VRFID;
+#else
+ vrf_id = panda_get_vrf_from_call(); /* from connectx call? */
+#endif
+
+#if defined(__FreeBSD__) && __FreeBSD_version > 602000
+ error = priv_check(req->td, PRIV_NETINET_GETCRED);
+#elif defined(__FreeBSD__) && __FreeBSD_version >= 500000
+ error = suser(req->td);
+#else
+ error = suser(req->p);
+#endif
+ if (error)
+ return (error);
+
+ if (req->newlen != sizeof(addrs)) {
+ SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+ if (req->oldlen != sizeof(struct ucred)) {
+ SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+ error = SYSCTL_IN(req, addrs, sizeof(addrs));
+ if (error)
+ return (error);
+
+ stcb = sctp_findassociation_addr_sa(sin6tosa(&addrs[1]),
+ sin6tosa(&addrs[0]),
+ &inp, &net, 1, vrf_id);
+ if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
+ if ((inp != NULL) && (stcb == NULL)) {
+ /* reduce ref-count */
+ SCTP_INP_WLOCK(inp);
+ SCTP_INP_DECR_REF(inp);
+ goto cred_can_cont;
+ }
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ENOENT);
+ error = ENOENT;
+ goto out;
+ }
+ SCTP_TCB_UNLOCK(stcb);
+ /* We use the write lock here, only
+ * since in the error leg we need it.
+ * If we used RLOCK, then we would have
+ * to wlock/decr/unlock/rlock. Which
+ * in theory could create a hole. Better
+ * to use higher wlock.
+ */
+ SCTP_INP_WLOCK(inp);
+ cred_can_cont:
+ error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
+ if (error) {
+ SCTP_INP_WUNLOCK(inp);
+ goto out;
+ }
+ cru2x(inp->sctp_socket->so_cred, &xuc);
+ SCTP_INP_WUNLOCK(inp);
+ error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
+out:
+ return (error);
+}
+
+SYSCTL_PROC(_net_inet6_sctp6, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
+ 0, 0,
+ sctp6_getcred, "S,ucred", "Get the ucred of a SCTP6 connection");
+
+#endif
+
+/* This is the same as the sctp_abort() could be made common */
+#if (defined(__FreeBSD__) && __FreeBSD_version > 690000) || defined(__Windows__)
+static void
+#elif defined(__Panda__) || defined(__Userspace__)
+int
+#else
+static int
+#endif
+sctp6_abort(struct socket *so)
+{
+ struct sctp_inpcb *inp;
+ uint32_t flags;
+
+ inp = (struct sctp_inpcb *)so->so_pcb;
+ if (inp == NULL) {
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+#if (defined(__FreeBSD__) && __FreeBSD_version > 690000) || defined(__Windows__)
+ return;
+#else
+ return (EINVAL);
+#endif
+ }
+ sctp_must_try_again:
+ flags = inp->sctp_flags;
+#ifdef SCTP_LOG_CLOSING
+ sctp_log_closing(inp, NULL, 17);
+#endif
+ if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
+ (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
+#ifdef SCTP_LOG_CLOSING
+ sctp_log_closing(inp, NULL, 16);
+#endif
+ sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
+ SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
+ SOCK_LOCK(so);
+ SCTP_SB_CLEAR(so->so_snd);
+ /* same for the rcv ones, they are only
+ * here for the accounting/select.
+ */
+ SCTP_SB_CLEAR(so->so_rcv);
+#if defined(__APPLE__)
+ so->so_usecount--;
+#else
+ /* Now null out the reference, we are completely detached. */
+ so->so_pcb = NULL;
+#endif
+ SOCK_UNLOCK(so);
+ } else {
+ flags = inp->sctp_flags;
+ if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
+ goto sctp_must_try_again;
+ }
+ }
+#if (defined(__FreeBSD__) && __FreeBSD_version > 690000) || defined(__Windows__)
+ return;
+#else
+ return (0);
+#endif
+}
+
+#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
+static int
+sctp6_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
+#elif defined(__Panda__) || defined(__Userspace__)
+int
+sctp6_attach(struct socket *so, int proto SCTP_UNUSED, uint32_t vrf_id)
+#elif defined(__Windows__)
+static int
+sctp6_attach(struct socket *so, int proto SCTP_UNUSED, PKTHREAD p SCTP_UNUSED)
+#else
+static int
+sctp6_attach(struct socket *so, int proto SCTP_UNUSED, struct proc *p SCTP_UNUSED)
+#endif
+{
+ struct in6pcb *inp6;
+ int error;
+ struct sctp_inpcb *inp;
+#if !defined(__Panda__) && !defined(__Userspace__)
+ uint32_t vrf_id = SCTP_DEFAULT_VRFID;
+#endif
+
+ inp = (struct sctp_inpcb *)so->so_pcb;
+ if (inp != NULL) {
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+
+ if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
+ error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
+ if (error)
+ return (error);
+ }
+ error = sctp_inpcb_alloc(so, vrf_id);
+ if (error)
+ return (error);
+ inp = (struct sctp_inpcb *)so->so_pcb;
+ SCTP_INP_WLOCK(inp);
+ inp->sctp_flags |= SCTP_PCB_FLAGS_BOUND_V6; /* I'm v6! */
+ inp6 = (struct in6pcb *)inp;
+
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__) || defined(__Userspace__)
+ inp6->inp_vflag |= INP_IPV6;
+#else
+ inp->inp_vflag |= INP_IPV6;
+#endif
+#if !defined(__Panda__)
+ inp6->in6p_hops = -1; /* use kernel default */
+ inp6->in6p_cksum = -1; /* just to be sure */
+#endif
+#ifdef INET
+ /*
+ * XXX: ugly!! IPv4 TTL initialization is necessary for an IPv6
+ * socket as well, because the socket may be bound to an IPv6
+ * wildcard address, which may match an IPv4-mapped IPv6 address.
+ */
+ inp6->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
+#endif
+ /*
+ * Hmm what about the IPSEC stuff that is missing here but in
+ * sctp_attach()?
+ */
+ SCTP_INP_WUNLOCK(inp);
+ return (0);
+}
+
+#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
+static int
+sctp6_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
+{
+#elif defined(__FreeBSD__) || defined(__APPLE__)
+static int
+sctp6_bind(struct socket *so, struct sockaddr *addr, struct proc *p)
+{
+#elif defined(__Panda__) || defined(__Userspace__)
+int
+sctp6_bind(struct socket *so, struct sockaddr *addr, void * p)
+{
+#elif defined(__Windows__)
+static int
+sctp6_bind(struct socket *so, struct sockaddr *addr, PKTHREAD p)
+{
+#else
+static int
+sctp6_bind(struct socket *so, struct mbuf *nam, struct proc *p)
+{
+ struct sockaddr *addr = nam ? mtod(nam, struct sockaddr *): NULL;
+
+#endif
+ struct sctp_inpcb *inp;
+ struct in6pcb *inp6;
+ int error;
+
+ inp = (struct sctp_inpcb *)so->so_pcb;
+ if (inp == NULL) {
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+
+#if !defined(__Windows__)
+ if (addr) {
+ switch (addr->sa_family) {
+#ifdef INET
+ case AF_INET:
+#ifdef HAVE_SA_LEN
+ if (addr->sa_len != sizeof(struct sockaddr_in)) {
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+#endif
+ break;
+#endif
+#ifdef INET6
+ case AF_INET6:
+#ifdef HAVE_SA_LEN
+ if (addr->sa_len != sizeof(struct sockaddr_in6)) {
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+#endif
+ break;
+#endif
+ default:
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+ }
+#endif
+ inp6 = (struct in6pcb *)inp;
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__) || defined(__Userspace__)
+ inp6->inp_vflag &= ~INP_IPV4;
+ inp6->inp_vflag |= INP_IPV6;
+#else
+ inp->inp_vflag &= ~INP_IPV4;
+ inp->inp_vflag |= INP_IPV6;
+#endif
+ if ((addr != NULL) && (SCTP_IPV6_V6ONLY(inp6) == 0)) {
+ switch (addr->sa_family) {
+#ifdef INET
+ case AF_INET:
+ /* binding v4 addr to v6 socket, so reset flags */
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__) || defined(__Userspace__)
+ inp6->inp_vflag |= INP_IPV4;
+ inp6->inp_vflag &= ~INP_IPV6;
+#else
+ inp->inp_vflag |= INP_IPV4;
+ inp->inp_vflag &= ~INP_IPV6;
+#endif
+ break;
+#endif
+#ifdef INET6
+ case AF_INET6:
+ {
+ struct sockaddr_in6 *sin6_p;
+
+ sin6_p = (struct sockaddr_in6 *)addr;
+
+ if (IN6_IS_ADDR_UNSPECIFIED(&sin6_p->sin6_addr)) {
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__) || defined(__Userspace__)
+ inp6->inp_vflag |= INP_IPV4;
+#else
+ inp->inp_vflag |= INP_IPV4;
+#endif
+ }
+#ifdef INET
+ if (IN6_IS_ADDR_V4MAPPED(&sin6_p->sin6_addr)) {
+ struct sockaddr_in sin;
+
+ in6_sin6_2_sin(&sin, sin6_p);
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__) || defined(__Userspace__)
+ inp6->inp_vflag |= INP_IPV4;
+ inp6->inp_vflag &= ~INP_IPV6;
+#else
+ inp->inp_vflag |= INP_IPV4;
+ inp->inp_vflag &= ~INP_IPV6;
+#endif
+ error = sctp_inpcb_bind(so, (struct sockaddr *)&sin, NULL, p);
+ return (error);
+ }
+#endif
+ break;
+ }
+#endif
+ default:
+ break;
+ }
+ } else if (addr != NULL) {
+ struct sockaddr_in6 *sin6_p;
+
+ /* IPV6_V6ONLY socket */
+#ifdef INET
+ if (addr->sa_family == AF_INET) {
+ /* can't bind v4 addr to v6 only socket! */
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+#endif
+ sin6_p = (struct sockaddr_in6 *)addr;
+
+ if (IN6_IS_ADDR_V4MAPPED(&sin6_p->sin6_addr)) {
+ /* can't bind v4-mapped addrs either! */
+ /* NOTE: we don't support SIIT */
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+ }
+ error = sctp_inpcb_bind(so, addr, NULL, p);
+ return (error);
+}
+
+
+#if (defined(__FreeBSD__) && __FreeBSD_version > 690000) || defined(__Windows__) || defined(__Userspace__)
+#if !defined(__Userspace__)
+static void
+#else
+void
+#endif
+sctp6_close(struct socket *so)
+{
+ sctp_close(so);
+}
+
+/* This could be made common with sctp_detach() since they are identical */
+#else
+
+#if !defined(__Panda__)
+static
+#endif
+int
+sctp6_detach(struct socket *so)
+{
+#if defined(__Userspace__)
+ sctp_close(so);
+ return (0);
+#else
+ return (sctp_detach(so));
+#endif
+}
+
+#endif
+
+#if !defined(__Panda__) && !defined(__Userspace__)
+static
+#endif
+int
+sctp6_disconnect(struct socket *so)
+{
+ return (sctp_disconnect(so));
+}
+
+
+int
+#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
+sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
+ struct mbuf *control, struct thread *p);
+
+#else
+sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
+ struct mbuf *control, struct proc *p);
+
+#endif
+
+#if !defined(__Panda__) && !defined(__Windows__) && !defined(__Userspace__)
+#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
+static int
+sctp6_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
+ struct mbuf *control, struct thread *p)
+{
+#elif defined(__FreeBSD__) || defined(__APPLE__)
+static int
+sctp6_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
+ struct mbuf *control, struct proc *p)
+{
+#else
+static int
+sctp6_send(struct socket *so, int flags, struct mbuf *m, struct mbuf *nam,
+ struct mbuf *control, struct proc *p)
+{
+ struct sockaddr *addr = nam ? mtod(nam, struct sockaddr *): NULL;
+#endif
+ struct sctp_inpcb *inp;
+ struct in6pcb *inp6;
+
+#ifdef INET
+ struct sockaddr_in6 *sin6;
+#endif /* INET */
+ /* No SPL needed since sctp_output does this */
+
+ inp = (struct sctp_inpcb *)so->so_pcb;
+ if (inp == NULL) {
+ if (control) {
+ SCTP_RELEASE_PKT(control);
+ control = NULL;
+ }
+ SCTP_RELEASE_PKT(m);
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+ inp6 = (struct in6pcb *)inp;
+ /*
+ * For the TCP model we may get a NULL addr, if we are a connected
+ * socket thats ok.
+ */
+ if ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) &&
+ (addr == NULL)) {
+ goto connected_type;
+ }
+ if (addr == NULL) {
+ SCTP_RELEASE_PKT(m);
+ if (control) {
+ SCTP_RELEASE_PKT(control);
+ control = NULL;
+ }
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EDESTADDRREQ);
+ return (EDESTADDRREQ);
+ }
+#ifdef INET
+ sin6 = (struct sockaddr_in6 *)addr;
+ if (SCTP_IPV6_V6ONLY(inp6)) {
+ /*
+ * if IPV6_V6ONLY flag, we discard datagrams destined to a
+ * v4 addr or v4-mapped addr
+ */
+ if (addr->sa_family == AF_INET) {
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+ if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+ }
+ if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
+ struct sockaddr_in sin;
+
+ /* convert v4-mapped into v4 addr and send */
+ in6_sin6_2_sin(&sin, sin6);
+ return (sctp_sendm(so, flags, m, (struct sockaddr *)&sin, control, p));
+ }
+#endif /* INET */
+connected_type:
+ /* now what about control */
+ if (control) {
+ if (inp->control) {
+ SCTP_PRINTF("huh? control set?\n");
+ SCTP_RELEASE_PKT(inp->control);
+ inp->control = NULL;
+ }
+ inp->control = control;
+ }
+ /* Place the data */
+ if (inp->pkt) {
+ SCTP_BUF_NEXT(inp->pkt_last) = m;
+ inp->pkt_last = m;
+ } else {
+ inp->pkt_last = inp->pkt = m;
+ }
+ if (
+#if defined(__FreeBSD__) || defined(__APPLE__)
+ /* FreeBSD and MacOSX uses a flag passed */
+ ((flags & PRUS_MORETOCOME) == 0)
+#else
+ 1 /* Open BSD does not have any "more to come"
+ * indication */
+#endif
+ ) {
+ /*
+ * note with the current version this code will only be used
+ * by OpenBSD, NetBSD and FreeBSD have methods for
+ * re-defining sosend() to use sctp_sosend(). One can
+ * optionaly switch back to this code (by changing back the
+ * defininitions but this is not advisable.
+ */
+ int ret;
+
+ ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
+ inp->pkt = NULL;
+ inp->control = NULL;
+ return (ret);
+ } else {
+ return (0);
+ }
+}
+#endif
+
+#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
+static int
+sctp6_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
+{
+#elif defined(__FreeBSD__) || defined(__APPLE__)
+static int
+sctp6_connect(struct socket *so, struct sockaddr *addr, struct proc *p)
+{
+#elif defined(__Panda__)
+int
+sctp6_connect(struct socket *so, struct sockaddr *addr, void *p)
+{
+#elif defined(__Windows__)
+static int
+sctp6_connect(struct socket *so, struct sockaddr *addr, PKTHREAD p)
+{
+#elif defined(__Userspace__)
+int
+sctp6_connect(struct socket *so, struct sockaddr *addr)
+{
+ void *p = NULL;
+#else
+static int
+sctp6_connect(struct socket *so, struct mbuf *nam, struct proc *p)
+{
+ struct sockaddr *addr = mtod(nam, struct sockaddr *);
+#endif
+ uint32_t vrf_id;
+ int error = 0;
+ struct sctp_inpcb *inp;
+ struct sctp_tcb *stcb;
+#ifdef INET
+ struct in6pcb *inp6;
+ struct sockaddr_in6 *sin6;
+ union sctp_sockstore store;
+#endif
+
+#ifdef INET
+ inp6 = (struct in6pcb *)so->so_pcb;
+#endif
+ inp = (struct sctp_inpcb *)so->so_pcb;
+ if (inp == NULL) {
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ECONNRESET);
+ return (ECONNRESET); /* I made the same as TCP since we are
+ * not setup? */
+ }
+ if (addr == NULL) {
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+#if !defined(__Windows__)
+ switch (addr->sa_family) {
+#ifdef INET
+ case AF_INET:
+#ifdef HAVE_SA_LEN
+ if (addr->sa_len != sizeof(struct sockaddr_in)) {
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+#endif
+ break;
+#endif
+#ifdef INET6
+ case AF_INET6:
+#ifdef HAVE_SA_LEN
+ if (addr->sa_len != sizeof(struct sockaddr_in6)) {
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+#endif
+ break;
+#endif
+ default:
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+#endif
+
+ vrf_id = inp->def_vrf_id;
+ SCTP_ASOC_CREATE_LOCK(inp);
+ SCTP_INP_RLOCK(inp);
+ if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
+ SCTP_PCB_FLAGS_UNBOUND) {
+ /* Bind a ephemeral port */
+ SCTP_INP_RUNLOCK(inp);
+ error = sctp6_bind(so, NULL, p);
+ if (error) {
+ SCTP_ASOC_CREATE_UNLOCK(inp);
+
+ return (error);
+ }
+ SCTP_INP_RLOCK(inp);
+ }
+ if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
+ (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
+ /* We are already connected AND the TCP model */
+ SCTP_INP_RUNLOCK(inp);
+ SCTP_ASOC_CREATE_UNLOCK(inp);
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EADDRINUSE);
+ return (EADDRINUSE);
+ }
+#ifdef INET
+ sin6 = (struct sockaddr_in6 *)addr;
+ if (SCTP_IPV6_V6ONLY(inp6)) {
+ /*
+ * if IPV6_V6ONLY flag, ignore connections destined to a v4
+ * addr or v4-mapped addr
+ */
+ if (addr->sa_family == AF_INET) {
+ SCTP_INP_RUNLOCK(inp);
+ SCTP_ASOC_CREATE_UNLOCK(inp);
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+ if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
+ SCTP_INP_RUNLOCK(inp);
+ SCTP_ASOC_CREATE_UNLOCK(inp);
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+ }
+ if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
+ /* convert v4-mapped into v4 addr */
+ in6_sin6_2_sin(&store.sin, sin6);
+ addr = &store.sa;
+ }
+#endif /* INET */
+ /* Now do we connect? */
+ if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
+ stcb = LIST_FIRST(&inp->sctp_asoc_list);
+ if (stcb) {
+ SCTP_TCB_UNLOCK(stcb);
+ }
+ SCTP_INP_RUNLOCK(inp);
+ } else {
+ SCTP_INP_RUNLOCK(inp);
+ SCTP_INP_WLOCK(inp);
+ SCTP_INP_INCR_REF(inp);
+ SCTP_INP_WUNLOCK(inp);
+ stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
+ if (stcb == NULL) {
+ SCTP_INP_WLOCK(inp);
+ SCTP_INP_DECR_REF(inp);
+ SCTP_INP_WUNLOCK(inp);
+ }
+ }
+
+ if (stcb != NULL) {
+ /* Already have or am bring up an association */
+ SCTP_ASOC_CREATE_UNLOCK(inp);
+ SCTP_TCB_UNLOCK(stcb);
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EALREADY);
+ return (EALREADY);
+ }
+ /* We are GOOD to go */
+ stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
+ inp->sctp_ep.pre_open_stream_count,
+ inp->sctp_ep.port, p);
+ SCTP_ASOC_CREATE_UNLOCK(inp);
+ if (stcb == NULL) {
+ /* Gak! no memory */
+ return (error);
+ }
+ if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
+ stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
+ /* Set the connected flag so we can queue data */
+ soisconnecting(so);
+ }
+ stcb->asoc.state = SCTP_STATE_COOKIE_WAIT;
+ (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
+
+ /* initialize authentication parameters for the assoc */
+ sctp_initialize_auth_params(inp, stcb);
+
+ sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
+ SCTP_TCB_UNLOCK(stcb);
+ return (error);
+}
+
+static int
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+sctp6_getaddr(struct socket *so, struct sockaddr **addr)
+{
+ struct sockaddr_in6 *sin6;
+#elif defined(__Panda__)
+sctp6_getaddr(struct socket *so, struct sockaddr *addr)
+{
+ struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)addr;
+#else
+sctp6_getaddr(struct socket *so, struct mbuf *nam)
+{
+ struct sockaddr_in6 *sin6 = mtod(nam, struct sockaddr_in6 *);
+#endif
+ struct sctp_inpcb *inp;
+ uint32_t vrf_id;
+ struct sctp_ifa *sctp_ifa;
+
+#ifdef SCTP_KAME
+ int error;
+#endif /* SCTP_KAME */
+
+ /*
+ * Do the malloc first in case it blocks.
+ */
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof(*sin6));
+ if (sin6 == NULL)
+ return (ENOMEM);
+#elif defined(__Panda__)
+ bzero(sin6, sizeof(*sin6));
+#else
+ SCTP_BUF_LEN(nam) = sizeof(*sin6);
+ bzero(sin6, sizeof(*sin6));
+#endif
+ sin6->sin6_family = AF_INET6;
+#ifdef HAVE_SIN6_LEN
+ sin6->sin6_len = sizeof(*sin6);
+#endif
+
+ inp = (struct sctp_inpcb *)so->so_pcb;
+ if (inp == NULL) {
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ SCTP_FREE_SONAME(sin6);
+#endif
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ECONNRESET);
+ return (ECONNRESET);
+ }
+ SCTP_INP_RLOCK(inp);
+ sin6->sin6_port = inp->sctp_lport;
+ if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
+ /* For the bound all case you get back 0 */
+ if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
+ struct sctp_tcb *stcb;
+ struct sockaddr_in6 *sin_a6;
+ struct sctp_nets *net;
+ int fnd;
+ stcb = LIST_FIRST(&inp->sctp_asoc_list);
+ if (stcb == NULL) {
+ SCTP_INP_RUNLOCK(inp);
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ SCTP_FREE_SONAME(sin6);
+#endif
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ENOENT);
+ return (ENOENT);
+ }
+ fnd = 0;
+ sin_a6 = NULL;
+ TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+ sin_a6 = (struct sockaddr_in6 *)&net->ro._l_addr;
+ if (sin_a6 == NULL)
+ /* this will make coverity happy */
+ continue;
+
+ if (sin_a6->sin6_family == AF_INET6) {
+ fnd = 1;
+ break;
+ }
+ }
+ if ((!fnd) || (sin_a6 == NULL)) {
+ /* punt */
+ SCTP_INP_RUNLOCK(inp);
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ SCTP_FREE_SONAME(sin6);
+#endif
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ENOENT);
+ return (ENOENT);
+ }
+ vrf_id = inp->def_vrf_id;
+ sctp_ifa = sctp_source_address_selection(inp, stcb, (sctp_route_t *)&net->ro, net, 0, vrf_id);
+ if (sctp_ifa) {
+ sin6->sin6_addr = sctp_ifa->address.sin6.sin6_addr;
+ }
+ } else {
+ /* For the bound all case you get back 0 */
+ memset(&sin6->sin6_addr, 0, sizeof(sin6->sin6_addr));
+ }
+ } else {
+ /* Take the first IPv6 address in the list */
+ struct sctp_laddr *laddr;
+ int fnd = 0;
+
+ LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
+ if (laddr->ifa->address.sa.sa_family == AF_INET6) {
+ struct sockaddr_in6 *sin_a;
+
+ sin_a = &laddr->ifa->address.sin6;
+ sin6->sin6_addr = sin_a->sin6_addr;
+ fnd = 1;
+ break;
+ }
+ }
+ if (!fnd) {
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ SCTP_FREE_SONAME(sin6);
+#endif
+ SCTP_INP_RUNLOCK(inp);
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ENOENT);
+ return (ENOENT);
+ }
+ }
+ SCTP_INP_RUNLOCK(inp);
+ /* Scoping things for v6 */
+#ifdef SCTP_EMBEDDED_V6_SCOPE
+#ifdef SCTP_KAME
+ if ((error = sa6_recoverscope(sin6)) != 0) {
+ SCTP_FREE_SONAME(sin6);
+ return (error);
+ }
+#else
+ if (IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr))
+ /* skip ifp check below */
+ in6_recoverscope(sin6, &sin6->sin6_addr, NULL);
+ else
+ sin6->sin6_scope_id = 0; /* XXX */
+#endif /* SCTP_KAME */
+#endif /* SCTP_EMBEDDED_V6_SCOPE */
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ (*addr) = (struct sockaddr *)sin6;
+#endif
+ return (0);
+}
+
+static int
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+sctp6_peeraddr(struct socket *so, struct sockaddr **addr)
+{
+ struct sockaddr_in6 *sin6;
+#elif defined(__Panda__)
+sctp6_peeraddr(struct socket *so, struct sockaddr *addr)
+{
+ struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)addr;
+#else
+sctp6_peeraddr(struct socket *so, struct mbuf *nam)
+{
+ struct sockaddr_in6 *sin6 = mtod(nam, struct sockaddr_in6 *);
+#endif
+ int fnd;
+ struct sockaddr_in6 *sin_a6;
+ struct sctp_inpcb *inp;
+ struct sctp_tcb *stcb;
+ struct sctp_nets *net;
+#ifdef SCTP_KAME
+ int error;
+#endif
+
+ /* Do the malloc first in case it blocks. */
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
+ if (sin6 == NULL)
+ return (ENOMEM);
+#elif defined(__Panda__)
+ memset(sin6, 0, sizeof(*sin6));
+#else
+ SCTP_BUF_LEN(nam) = sizeof(*sin6);
+ memset(sin6, 0, sizeof(*sin6));
+#endif
+ sin6->sin6_family = AF_INET6;
+#ifdef HAVE_SIN6_LEN
+ sin6->sin6_len = sizeof(*sin6);
+#endif
+
+ inp = (struct sctp_inpcb *)so->so_pcb;
+ if ((inp == NULL) ||
+ ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
+ /* UDP type and listeners will drop out here */
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ SCTP_FREE_SONAME(sin6);
+#endif
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ENOTCONN);
+ return (ENOTCONN);
+ }
+ SCTP_INP_RLOCK(inp);
+ stcb = LIST_FIRST(&inp->sctp_asoc_list);
+ if (stcb) {
+ SCTP_TCB_LOCK(stcb);
+ }
+ SCTP_INP_RUNLOCK(inp);
+ if (stcb == NULL) {
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ SCTP_FREE_SONAME(sin6);
+#endif
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ECONNRESET);
+ return (ECONNRESET);
+ }
+ fnd = 0;
+ TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+ sin_a6 = (struct sockaddr_in6 *)&net->ro._l_addr;
+ if (sin_a6->sin6_family == AF_INET6) {
+ fnd = 1;
+ sin6->sin6_port = stcb->rport;
+ sin6->sin6_addr = sin_a6->sin6_addr;
+ break;
+ }
+ }
+ SCTP_TCB_UNLOCK(stcb);
+ if (!fnd) {
+ /* No IPv4 address */
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ SCTP_FREE_SONAME(sin6);
+#endif
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, ENOENT);
+ return (ENOENT);
+ }
+#ifdef SCTP_EMBEDDED_V6_SCOPE
+#ifdef SCTP_KAME
+ if ((error = sa6_recoverscope(sin6)) != 0) {
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ SCTP_FREE_SONAME(sin6);
+#endif
+ SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, error);
+ return (error);
+ }
+#else
+ in6_recoverscope(sin6, &sin6->sin6_addr, NULL);
+#endif /* SCTP_KAME */
+#endif /* SCTP_EMBEDDED_V6_SCOPE */
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ *addr = (struct sockaddr *)sin6;
+#endif
+ return (0);
+}
+
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+static int
+sctp6_in6getaddr(struct socket *so, struct sockaddr **nam)
+{
+#elif defined(__Panda__)
+int
+sctp6_in6getaddr(struct socket *so, struct sockaddr *nam, uint32_t *namelen)
+{
+ struct sockaddr *addr = nam;
+#elif defined(__Userspace__)
+int
+sctp6_in6getaddr(struct socket *so, struct mbuf *nam)
+{
+#ifdef INET
+ struct sockaddr *addr = mtod(nam, struct sockaddr *);
+#endif
+#else
+static int
+sctp6_in6getaddr(struct socket *so, struct mbuf *nam)
+{
+#ifdef INET
+ struct sockaddr *addr = mtod(nam, struct sockaddr *);
+#endif
+#endif
+ struct in6pcb *inp6 = sotoin6pcb(so);
+ int error;
+
+ if (inp6 == NULL) {
+ SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+
+ /* allow v6 addresses precedence */
+ error = sctp6_getaddr(so, nam);
+#ifdef INET
+ if (error) {
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ struct sockaddr_in6 *sin6;
+#else
+ struct sockaddr_in6 sin6;
+#endif
+
+ /* try v4 next if v6 failed */
+ error = sctp_ingetaddr(so, nam);
+ if (error) {
+ return (error);
+ }
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
+ if (sin6 == NULL) {
+ SCTP_FREE_SONAME(*nam);
+ return (ENOMEM);
+ }
+ in6_sin_2_v4mapsin6((struct sockaddr_in *)*nam, sin6);
+ SCTP_FREE_SONAME(*nam);
+ *nam = (struct sockaddr *)sin6;
+#else
+ in6_sin_2_v4mapsin6((struct sockaddr_in *)addr, &sin6);
+ SCTP_BUF_LEN(nam) = sizeof(struct sockaddr_in6);
+ memcpy(addr, &sin6, sizeof(struct sockaddr_in6));
+#endif
+ }
+#endif
+#if defined(__Panda__)
+ *namelen = nam->sa_len;
+#endif
+ return (error);
+}
+
+
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+static int
+sctp6_getpeeraddr(struct socket *so, struct sockaddr **nam)
+{
+#elif defined(__Panda__)
+int
+sctp6_getpeeraddr(struct socket *so, struct sockaddr *nam, uint32_t *namelen)
+{
+ struct sockaddr *addr = (struct sockaddr *)nam;
+#elif defined(__Userspace__)
+int
+sctp6_getpeeraddr(struct socket *so, struct mbuf *nam)
+{
+#ifdef INET
+ struct sockaddr *addr = mtod(nam, struct sockaddr *);
+#endif
+#else
+static
+int
+sctp6_getpeeraddr(struct socket *so, struct mbuf *nam)
+{
+#ifdef INET
+ struct sockaddr *addr = mtod(nam, struct sockaddr *);
+#endif
+
+#endif
+ struct in6pcb *inp6 = sotoin6pcb(so);
+ int error;
+
+ if (inp6 == NULL) {
+ SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+
+ /* allow v6 addresses precedence */
+ error = sctp6_peeraddr(so, nam);
+#ifdef INET
+ if (error) {
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ struct sockaddr_in6 *sin6;
+#else
+ struct sockaddr_in6 sin6;
+#endif
+
+ /* try v4 next if v6 failed */
+ error = sctp_peeraddr(so, nam);
+ if (error) {
+ return (error);
+ }
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+ SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
+ if (sin6 == NULL) {
+ SCTP_FREE_SONAME(*nam);
+ return (ENOMEM);
+ }
+ in6_sin_2_v4mapsin6((struct sockaddr_in *)*nam, sin6);
+ SCTP_FREE_SONAME(*nam);
+ *nam = (struct sockaddr *)sin6;
+#else
+ in6_sin_2_v4mapsin6((struct sockaddr_in *)addr, &sin6);
+ SCTP_BUF_LEN(nam) = sizeof(struct sockaddr_in6);
+ memcpy(addr, &sin6, sizeof(struct sockaddr_in6));
+#endif
+ }
+#endif
+#if defined(__Panda__)
+ *namelen = nam->sa_len;
+#endif
+ return (error);
+}
+
+#if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
+struct pr_usrreqs sctp6_usrreqs = {
+#if defined(__FreeBSD__)
+ .pru_abort = sctp6_abort,
+ .pru_accept = sctp_accept,
+ .pru_attach = sctp6_attach,
+ .pru_bind = sctp6_bind,
+ .pru_connect = sctp6_connect,
+ .pru_control = in6_control,
+#if __FreeBSD_version >= 690000
+ .pru_close = sctp6_close,
+ .pru_detach = sctp6_close,
+ .pru_sopoll = sopoll_generic,
+ .pru_flush = sctp_flush,
+#else
+ .pru_detach = sctp6_detach,
+ .pru_sopoll = sopoll,
+#endif
+ .pru_disconnect = sctp6_disconnect,
+ .pru_listen = sctp_listen,
+ .pru_peeraddr = sctp6_getpeeraddr,
+ .pru_send = sctp6_send,
+ .pru_shutdown = sctp_shutdown,
+ .pru_sockaddr = sctp6_in6getaddr,
+ .pru_sosend = sctp_sosend,
+ .pru_soreceive = sctp_soreceive
+#elif defined(__APPLE__)
+ .pru_abort = sctp6_abort,
+ .pru_accept = sctp_accept,
+ .pru_attach = sctp6_attach,
+ .pru_bind = sctp6_bind,
+ .pru_connect = sctp6_connect,
+ .pru_connect2 = pru_connect2_notsupp,
+ .pru_control = in6_control,
+ .pru_detach = sctp6_detach,
+ .pru_disconnect = sctp6_disconnect,
+ .pru_listen = sctp_listen,
+ .pru_peeraddr = sctp6_getpeeraddr,
+ .pru_rcvd = NULL,
+ .pru_rcvoob = pru_rcvoob_notsupp,
+ .pru_send = sctp6_send,
+ .pru_sense = pru_sense_null,
+ .pru_shutdown = sctp_shutdown,
+ .pru_sockaddr = sctp6_in6getaddr,
+ .pru_sosend = sctp_sosend,
+ .pru_soreceive = sctp_soreceive,
+ .pru_sopoll = sopoll
+#elif defined(__Windows__)
+ sctp6_abort,
+ sctp_accept,
+ sctp6_attach,
+ sctp6_bind,
+ sctp6_connect,
+ pru_connect2_notsupp,
+ NULL,
+ NULL,
+ sctp6_disconnect,
+ sctp_listen,
+ sctp6_getpeeraddr,
+ NULL,
+ pru_rcvoob_notsupp,
+ NULL,
+ pru_sense_null,
+ sctp_shutdown,
+ sctp_flush,
+ sctp6_in6getaddr,
+ sctp_sosend,
+ sctp_soreceive,
+ sopoll_generic,
+ NULL,
+ sctp6_close
+#endif
+};
+
+#elif !defined(__Panda__) && !defined(__Userspace__)
+int
+sctp6_usrreq(so, req, m, nam, control, p)
+ struct socket *so;
+ int req;
+ struct mbuf *m, *nam, *control;
+ struct proc *p;
+{
+ int s;
+ int error = 0;
+ int family;
+ uint32_t vrf_id;
+ family = so->so_proto->pr_domain->dom_family;
+
+ if (req == PRU_CONTROL) {
+ switch (family) {
+ case PF_INET:
+ error = in_control(so, (long)m, (caddr_t)nam,
+ (struct ifnet *)control
+ );
+#ifdef INET6
+ case PF_INET6:
+ error = in6_control(so, (long)m, (caddr_t)nam,
+ (struct ifnet *)control, p);
+#endif
+ default:
+ SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EAFNOSUPPORT);
+ error = EAFNOSUPPORT;
+ }
+ return (error);
+ }
+ switch (req) {
+ case PRU_ATTACH:
+ error = sctp6_attach(so, family, p);
+ break;
+ case PRU_DETACH:
+ error = sctp6_detach(so);
+ break;
+ case PRU_BIND:
+ if (nam == NULL) {
+ SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+ error = sctp6_bind(so, nam, p);
+ break;
+ case PRU_LISTEN:
+ error = sctp_listen(so, p);
+ break;
+ case PRU_CONNECT:
+ if (nam == NULL) {
+ SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+ error = sctp6_connect(so, nam, p);
+ break;
+ case PRU_DISCONNECT:
+ error = sctp6_disconnect(so);
+ break;
+ case PRU_ACCEPT:
+ if (nam == NULL) {
+ SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EINVAL);
+ return (EINVAL);
+ }
+ error = sctp_accept(so, nam);
+ break;
+ case PRU_SHUTDOWN:
+ error = sctp_shutdown(so);
+ break;
+
+ case PRU_RCVD:
+ /*
+ * For OpenBSD and NetBSD, this is real ugly. The (mbuf *)
+ * nam that is passed (by soreceive()) is the int flags cast
+ * as a (mbuf *) yuck!
+ */
+ error = sctp_usr_recvd(so, (int)((long)nam));
+ break;
+
+ case PRU_SEND:
+ /* Flags are ignored */
+ error = sctp6_send(so, 0, m, nam, control, p);
+ break;
+ case PRU_ABORT:
+ error = sctp6_abort(so);
+ break;
+
+ case PRU_SENSE:
+ error = 0;
+ break;
+ case PRU_RCVOOB:
+ SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EAFNOSUPPORT);
+ error = EAFNOSUPPORT;
+ break;
+ case PRU_SENDOOB:
+ SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP6_USRREQ, EAFNOSUPPORT);
+ error = EAFNOSUPPORT;
+ break;
+ case PRU_PEERADDR:
+ error = sctp6_getpeeraddr(so, nam);
+ break;
+ case PRU_SOCKADDR:
+ error = sctp6_in6getaddr(so, nam);
+ break;
+ case PRU_SLOWTIMO:
+ error = 0;
+ break;
+ default:
+ break;
+ }
+ return (error);
+}
+#endif
+#endif