Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 9045 insertions, 0 deletions

diff --git a/netwerk/sctp/src/netinet/sctp_usrreq.c b/netwerk/sctp/src/netinet/sctp_usrreq.c
new file mode 100644
index 0000000000..254aea3669
--- /dev/null
+++ b/netwerk/sctp/src/netinet/sctp_usrreq.c
@@ -0,0 +1,9045 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2001-2008, 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.
+ */
+
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+#endif
+
+#include <netinet/sctp_os.h>
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+#include <sys/proc.h>
+#endif
+#include <netinet/sctp_pcb.h>
+#include <netinet/sctp_header.h>
+#include <netinet/sctp_var.h>
+#ifdef INET6
+#include <netinet6/sctp6_var.h>
+#endif
+#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_bsd_addr.h>
+#if defined(__Userspace__)
+#include <netinet/sctp_callout.h>
+#else
+#include <netinet/udp.h>
+#endif
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+#include <sys/eventhandler.h>
+#endif
+#if defined(HAVE_SCTP_PEELOFF_SOCKOPT)
+#include <netinet/sctp_peeloff.h>
+#endif				/* HAVE_SCTP_PEELOFF_SOCKOPT */
+
+extern const struct sctp_cc_functions sctp_cc_functions[];
+extern const struct sctp_ss_functions sctp_ss_functions[];
+
+#if defined(__Userspace__)
+void
+sctp_init(uint16_t port,
+          int (*conn_output)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df),
+          void (*debug_printf)(const char *format, ...), int start_threads)
+#elif defined(__APPLE__) && (!defined(APPLE_LEOPARD) && !defined(APPLE_SNOWLEOPARD) &&!defined(APPLE_LION) && !defined(APPLE_MOUNTAINLION))
+void
+sctp_init(struct protosw *pp SCTP_UNUSED, struct domain *dp SCTP_UNUSED)
+#elif defined(__FreeBSD__)
+static void
+sctp_init(void *arg SCTP_UNUSED)
+#else
+void
+sctp_init(void)
+#endif
+{
+#if !defined(__Userspace__)
+	u_long sb_max_adj;
+
+#else
+	init_random();
+#endif
+	/* Initialize and modify the sysctled variables */
+	sctp_init_sysctls();
+#if defined(__Userspace__)
+	SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = port;
+#else
+#if defined(__APPLE__) && !defined(__Userspace__)
+	sb_max_adj = (u_long)((u_quad_t) (sb_max) * MCLBYTES / (MSIZE + MCLBYTES));
+	SCTP_BASE_SYSCTL(sctp_sendspace) = sb_max_adj;
+#else
+	if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
+		SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
+	/*
+	 * Allow a user to take no more than 1/2 the number of clusters or
+	 * the SB_MAX, whichever is smaller, for the send window.
+	 */
+	sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
+	SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
+	    (((uint32_t)nmbclusters / 2) * MCLBYTES));
+#endif
+	/*
+	 * Now for the recv window, should we take the same amount? or
+	 * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
+	 * now I will just copy.
+	 */
+	SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
+#endif
+	SCTP_BASE_VAR(first_time) = 0;
+	SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
+#if defined(__Userspace__)
+#if !defined(_WIN32)
+#if defined(INET) || defined(INET6)
+	SCTP_BASE_VAR(userspace_route) = -1;
+#endif
+#endif
+#ifdef INET
+	SCTP_BASE_VAR(userspace_rawsctp) = -1;
+	SCTP_BASE_VAR(userspace_udpsctp) = -1;
+#endif
+#ifdef INET6
+	SCTP_BASE_VAR(userspace_rawsctp6) = -1;
+	SCTP_BASE_VAR(userspace_udpsctp6) = -1;
+#endif
+	SCTP_BASE_VAR(timer_thread_should_exit) = 0;
+	SCTP_BASE_VAR(conn_output) = conn_output;
+	SCTP_BASE_VAR(debug_printf) = debug_printf;
+	SCTP_BASE_VAR(crc32c_offloaded) = 0;
+	SCTP_BASE_VAR(iterator_thread_started) = 0;
+	SCTP_BASE_VAR(timer_thread_started) = 0;
+#endif
+#if defined(__Userspace__)
+	sctp_pcb_init(start_threads);
+	if (start_threads) {
+		sctp_start_timer_thread();
+	}
+#else
+	sctp_pcb_init();
+#endif
+#if defined(SCTP_PACKET_LOGGING)
+	SCTP_BASE_VAR(packet_log_writers) = 0;
+	SCTP_BASE_VAR(packet_log_end) = 0;
+	memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
+#endif
+#if defined(__APPLE__) && !defined(__Userspace__)
+	SCTP_BASE_VAR(sctp_main_timer_ticks) = 0;
+	sctp_start_main_timer();
+	timeout(sctp_delayed_startup, NULL, 1);
+#endif
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	SCTP_BASE_VAR(eh_tag) = EVENTHANDLER_REGISTER(rt_addrmsg,
+	    sctp_addr_change_event_handler, NULL, EVENTHANDLER_PRI_FIRST);
+#endif
+}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+VNET_SYSINIT(sctp_init, SI_SUB_PROTO_DOMAIN, SI_ORDER_THIRD, sctp_init, NULL);
+
+#ifdef VIMAGE
+static void
+sctp_finish(void *unused __unused)
+{
+	EVENTHANDLER_DEREGISTER(rt_addrmsg, SCTP_BASE_VAR(eh_tag));
+	sctp_pcb_finish();
+}
+VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
+#endif
+#else
+void
+sctp_finish(void)
+{
+#if defined(__APPLE__) && !defined(__Userspace__)
+	untimeout(sctp_delayed_startup, NULL);
+	sctp_over_udp_stop();
+	sctp_address_monitor_stop();
+	sctp_stop_main_timer();
+#endif
+#if defined(__Userspace__)
+#if defined(INET) || defined(INET6)
+	recv_thread_destroy();
+#endif
+	sctp_stop_timer_thread();
+#endif
+	sctp_pcb_finish();
+#if defined(_WIN32) && !defined(__Userspace__)
+	sctp_finish_sysctls();
+#endif
+#if defined(__Userspace__)
+	finish_random();
+#endif
+}
+#endif
+
+void
+sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint32_t mtu, bool resend)
+{
+	struct sctp_association *asoc;
+	struct sctp_tmit_chunk *chk;
+	uint32_t overhead;
+
+	asoc = &stcb->asoc;
+	KASSERT(mtu < asoc->smallest_mtu,
+	        ("Currently only reducing association MTU %u supported (MTU %u)",
+	        asoc->smallest_mtu, mtu));
+	asoc->smallest_mtu = mtu;
+	if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
+		overhead = SCTP_MIN_OVERHEAD;
+	} else {
+#if defined(__Userspace__)
+		if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_CONN) {
+			overhead = sizeof(struct sctphdr);
+		} else {
+			overhead = SCTP_MIN_V4_OVERHEAD;
+		}
+#else
+		overhead = SCTP_MIN_V4_OVERHEAD;
+#endif
+	}
+	if (asoc->idata_supported) {
+		if (sctp_auth_is_required_chunk(SCTP_IDATA, asoc->peer_auth_chunks)) {
+			overhead += sctp_get_auth_chunk_len(asoc->peer_hmac_id);
+		}
+	} else {
+		if (sctp_auth_is_required_chunk(SCTP_DATA, asoc->peer_auth_chunks)) {
+			overhead += sctp_get_auth_chunk_len(asoc->peer_hmac_id);
+		}
+	}
+	KASSERT(overhead % 4 == 0,
+	        ("overhead (%u) not a multiple of 4", overhead));
+	TAILQ_FOREACH(chk, &asoc->send_queue, sctp_next) {
+		if (((uint32_t)chk->send_size + overhead) > mtu) {
+			chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
+		}
+	}
+	TAILQ_FOREACH(chk, &asoc->sent_queue, sctp_next) {
+		if (((uint32_t)chk->send_size + overhead) > mtu) {
+			chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
+			if (resend && chk->sent < SCTP_DATAGRAM_RESEND) {
+				/*
+				 * If requested, mark the chunk for immediate
+				 * resend, since we sent it being too big.
+				 */
+				sctp_flight_size_decrease(chk);
+				sctp_total_flight_decrease(stcb, chk);
+				chk->sent = SCTP_DATAGRAM_RESEND;
+				sctp_ucount_incr(asoc->sent_queue_retran_cnt);
+				chk->rec.data.doing_fast_retransmit = 0;
+				if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
+					sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
+					               chk->whoTo->flight_size,
+					               chk->book_size,
+					               (uint32_t)(uintptr_t)chk->whoTo,
+					               chk->rec.data.tsn);
+				}
+				/* Clear any time, so NO RTT is being done. */
+				if (chk->do_rtt == 1) {
+					chk->do_rtt = 0;
+					chk->whoTo->rto_needed = 1;
+				}
+			}
+		}
+	}
+}
+
+#ifdef INET
+#if !defined(__Userspace__)
+void
+sctp_notify(struct sctp_inpcb *inp,
+            struct sctp_tcb *stcb,
+            struct sctp_nets *net,
+            uint8_t icmp_type,
+            uint8_t icmp_code,
+            uint16_t ip_len,
+            uint32_t next_mtu)
+{
+#if defined(__APPLE__) && !defined(__Userspace__)
+	struct socket *so;
+#endif
+	int timer_stopped;
+
+	if (icmp_type != ICMP_UNREACH) {
+		/* We only care about unreachable */
+		SCTP_TCB_UNLOCK(stcb);
+		return;
+	}
+	if ((icmp_code == ICMP_UNREACH_NET) ||
+	    (icmp_code == ICMP_UNREACH_HOST) ||
+	    (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
+	    (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
+	    (icmp_code == ICMP_UNREACH_ISOLATED) ||
+	    (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
+	    (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
+#if defined(__NetBSD__)
+	    (icmp_code == ICMP_UNREACH_ADMIN_PROHIBIT)) {
+#else
+	    (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
+#endif
+		/* 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);
+	} else  if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
+		    (icmp_code == ICMP_UNREACH_PORT)) {
+		/* Treat it like an ABORT. */
+		sctp_abort_notification(stcb, true, false, 0, NULL, SCTP_SO_NOT_LOCKED);
+#if defined(__APPLE__) && !defined(__Userspace__)
+		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(__Userspace__)
+		SCTP_SOCKET_UNLOCK(so, 1);
+		/* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed.*/
+#endif
+		/* no need to unlock here, since the TCB is gone */
+	} else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
+		if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
+			SCTP_TCB_UNLOCK(stcb);
+			return;
+		}
+		/* Find the next (smaller) MTU */
+		if (next_mtu == 0) {
+			/*
+			 * Old type router that does not tell us what the next
+			 * MTU is.
+			 * Rats we will have to guess (in a educated fashion
+			 * of course).
+			 */
+			next_mtu = sctp_get_prev_mtu(ip_len);
+		}
+		/* Stop the PMTU timer. */
+		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->port) {
+			next_mtu -= sizeof(struct udphdr);
+		}
+		if (net->mtu > next_mtu) {
+			net->mtu = next_mtu;
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+			if (net->port) {
+				sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
+			} else {
+				sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
+			}
+#endif
+		}
+		/* Update the association MTU */
+		if (stcb->asoc.smallest_mtu > next_mtu) {
+			sctp_pathmtu_adjustment(stcb, next_mtu, true);
+		}
+		/* 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);
+	} else {
+		SCTP_TCB_UNLOCK(stcb);
+	}
+}
+#endif
+
+#if !defined(__Userspace__)
+#if defined(__FreeBSD__)
+void sctp_ctlinput(struct icmp *icmp)
+{
+	struct ip *inner_ip, *outer_ip;
+	struct sctphdr *sh;
+	struct sctp_inpcb *inp;
+	struct sctp_tcb *stcb;
+	struct sctp_nets *net;
+	struct sctp_init_chunk *ch;
+	struct sockaddr_in src, dst;
+
+	if (icmp_errmap(icmp) == 0)
+		return;
+
+	outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
+	inner_ip = &icmp->icmp_ip;
+	sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
+	memset(&src, 0, sizeof(struct sockaddr_in));
+	src.sin_family = AF_INET;
+	src.sin_len = sizeof(struct sockaddr_in);
+	src.sin_port = sh->src_port;
+	src.sin_addr = inner_ip->ip_src;
+	memset(&dst, 0, sizeof(struct sockaddr_in));
+	dst.sin_family = AF_INET;
+	dst.sin_len = sizeof(struct sockaddr_in);
+	dst.sin_port = sh->dest_port;
+	dst.sin_addr = inner_ip->ip_dst;
+	/*
+	 * 'dst' holds the dest of the packet that failed to be sent.
+	 * 'src' holds our local endpoint address. Thus we reverse
+	 * the dst and the src in the lookup.
+	 */
+	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 (ntohs(outer_ip->ip_len) >=
+			    sizeof(struct ip) +
+			    8 + (inner_ip->ip_hl << 2) + 20) {
+				/*
+				 * In this case we can check if we
+				 * got an INIT chunk and if the
+				 * initiate tag matches.
+				 */
+				ch = (struct sctp_init_chunk *)(sh + 1);
+				if ((ch->ch.chunk_type != SCTP_INITIATION) ||
+				    (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
+					SCTP_TCB_UNLOCK(stcb);
+					return;
+				}
+			} else {
+				SCTP_TCB_UNLOCK(stcb);
+				return;
+			}
+		}
+		sctp_notify(inp, stcb, net,
+		            icmp->icmp_type,
+		            icmp->icmp_code,
+		            ntohs(inner_ip->ip_len),
+		            (uint32_t)ntohs(icmp->icmp_nextmtu));
+	} else {
+		if ((stcb == NULL) && (inp != NULL)) {
+			/* reduce ref-count */
+			SCTP_INP_WLOCK(inp);
+			SCTP_INP_DECR_REF(inp);
+			SCTP_INP_WUNLOCK(inp);
+		}
+		if (stcb) {
+			SCTP_TCB_UNLOCK(stcb);
+		}
+	}
+}
+#else
+void
+#if defined(__APPLE__) && !defined(APPLE_LEOPARD) && !defined(APPLE_SNOWLEOPARD) && !defined(APPLE_LION) && !defined(APPLE_MOUNTAINLION) && !defined(APPLE_ELCAPITAN)
+sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip, struct ifnet *ifp SCTP_UNUSED)
+#else
+sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
+#endif
+{
+	struct ip *inner_ip;
+	struct sctphdr *sh;
+	struct icmp *icmp;
+	struct sctp_inpcb *inp;
+	struct sctp_tcb *stcb;
+	struct sctp_nets *net;
+	struct sockaddr_in src, dst;
+
+#if !defined(__FreeBSD__) && !defined(__Userspace__)
+	if (sa->sa_family != AF_INET ||
+	    ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
+		return;
+	}
+#endif
+	if (PRC_IS_REDIRECT(cmd)) {
+		vip = NULL;
+	} else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
+		return;
+	}
+	if (vip != NULL) {
+		inner_ip = (struct ip *)vip;
+		icmp = (struct icmp *)((caddr_t)inner_ip -
+		    (sizeof(struct icmp) - sizeof(struct ip)));
+		sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
+		memset(&src, 0, sizeof(struct sockaddr_in));
+		src.sin_family = AF_INET;
+#ifdef HAVE_SIN_LEN
+		src.sin_len = sizeof(struct sockaddr_in);
+#endif
+		src.sin_port = sh->src_port;
+		src.sin_addr = inner_ip->ip_src;
+		memset(&dst, 0, sizeof(struct sockaddr_in));
+		dst.sin_family = AF_INET;
+#ifdef HAVE_SIN_LEN
+		dst.sin_len = sizeof(struct sockaddr_in);
+#endif
+		dst.sin_port = sh->dest_port;
+		dst.sin_addr = inner_ip->ip_dst;
+		/*
+		 * 'dst' holds the dest of the packet that failed to be sent.
+		 * 'src' holds our local endpoint address. Thus we reverse
+		 * the dst and the src in the lookup.
+		 */
+		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 {
+				SCTP_TCB_UNLOCK(stcb);
+				return;
+			}
+			sctp_notify(inp, stcb, net,
+			            icmp->icmp_type,
+			            icmp->icmp_code,
+			            inner_ip->ip_len,
+			            (uint32_t)ntohs(icmp->icmp_nextmtu));
+#if defined(__Userspace__)
+			if (((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
+			    (stcb->sctp_socket != NULL)) {
+				struct socket *upcall_socket;
+
+				upcall_socket = stcb->sctp_socket;
+				SOCK_LOCK(upcall_socket);
+				soref(upcall_socket);
+				SOCK_UNLOCK(upcall_socket);
+				if ((upcall_socket->so_upcall != NULL) &&
+				    (upcall_socket->so_error != 0)) {
+					(*upcall_socket->so_upcall)(upcall_socket, upcall_socket->so_upcallarg, M_NOWAIT);
+				}
+				ACCEPT_LOCK();
+				SOCK_LOCK(upcall_socket);
+				sorele(upcall_socket);
+			}
+#endif
+		} else {
+			if ((stcb == NULL) && (inp != NULL)) {
+				/* reduce ref-count */
+				SCTP_INP_WLOCK(inp);
+				SCTP_INP_DECR_REF(inp);
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if (stcb) {
+				SCTP_TCB_UNLOCK(stcb);
+			}
+		}
+	}
+	return;
+}
+#endif
+#endif
+#endif
+
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+static int
+sctp_getcred(SYSCTL_HANDLER_ARGS)
+{
+	struct xucred xuc;
+	struct sockaddr_in addrs[2];
+	struct sctp_inpcb *inp;
+	struct sctp_nets *net;
+	struct sctp_tcb *stcb;
+	int error;
+	uint32_t vrf_id;
+
+	/* FIX, for non-bsd is this right? */
+	vrf_id = SCTP_DEFAULT_VRFID;
+
+	error = priv_check(req->td, PRIV_NETINET_GETCRED);
+
+	if (error)
+		return (error);
+
+	error = SYSCTL_IN(req, addrs, sizeof(addrs));
+	if (error)
+		return (error);
+
+	stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
+	    sintosa(&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_SCTP_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_inet_sctp, OID_AUTO, getcred,
+    CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
+    0, 0, sctp_getcred, "S,ucred",
+    "Get the ucred of a SCTP connection");
+#endif
+
+#ifdef INET
+#if defined(_WIN32) || defined(__Userspace__)
+int
+#elif defined(__FreeBSD__)
+static void
+#else
+static int
+#endif
+sctp_abort(struct socket *so)
+{
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	struct epoch_tracker et;
+#endif
+	struct sctp_inpcb *inp;
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL) {
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		return;
+#else
+		SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (EINVAL);
+#endif
+	}
+
+	SCTP_INP_WLOCK(inp);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	NET_EPOCH_ENTER(et);
+#endif
+#ifdef SCTP_LOG_CLOSING
+	sctp_log_closing(inp, NULL, 17);
+#endif
+	if (((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0)) {
+		inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
+#ifdef SCTP_LOG_CLOSING
+		sctp_log_closing(inp, NULL, 16);
+#endif
+		SCTP_INP_WUNLOCK(inp);
+		sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
+		                SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
+		SOCK_LOCK(so);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		KASSERT(!SOLISTENING(so),
+		        ("sctp_abort: called on listening socket %p", so));
+#endif
+		SCTP_SB_CLEAR(so->so_snd);
+		SCTP_SB_CLEAR(so->so_rcv);
+#if defined(__APPLE__) && !defined(__Userspace__)
+		so->so_usecount--;
+#else
+		/* Now null out the reference, we are completely detached. */
+		so->so_pcb = NULL;
+#endif
+		SOCK_UNLOCK(so);
+	} else {
+		SCTP_INP_WUNLOCK(inp);
+	}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	NET_EPOCH_EXIT(et);
+#else
+	return (0);
+#endif
+}
+
+#if defined(__Userspace__)
+int
+#else
+static int
+#endif
+#if defined(__Userspace__)
+sctp_attach(struct socket *so, int proto SCTP_UNUSED, uint32_t vrf_id)
+#elif defined(__FreeBSD__)
+sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
+#elif defined(_WIN32)
+sctp_attach(struct socket *so, int proto SCTP_UNUSED, PKTHREAD p SCTP_UNUSED)
+#else
+sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct proc *p SCTP_UNUSED)
+#endif
+{
+	struct sctp_inpcb *inp;
+	struct inpcb *ip_inp;
+	int error;
+#if !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_SCTP_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 not v6! */
+	ip_inp = &inp->ip_inp.inp;
+	ip_inp->inp_vflag |= INP_IPV4;
+	ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
+	SCTP_INP_WUNLOCK(inp);
+	return (0);
+}
+
+#if defined(__Userspace__)
+int
+sctp_bind(struct socket *so, struct sockaddr *addr) {
+	void *p = NULL;
+#elif defined(__FreeBSD__)
+static int
+sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
+{
+#elif defined(__APPLE__)
+static int
+sctp_bind(struct socket *so, struct sockaddr *addr, struct proc *p) {
+#elif defined(_WIN32)
+static int
+sctp_bind(struct socket *so, struct sockaddr *addr, PKTHREAD p) {
+#else
+static int
+sctp_bind(struct socket *so, struct mbuf *nam, struct proc *p)
+{
+	struct sockaddr *addr = nam ? mtod(nam, struct sockaddr *): NULL;
+
+#endif
+	struct sctp_inpcb *inp;
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (EINVAL);
+	}
+	if (addr != NULL) {
+#ifdef HAVE_SA_LEN
+		if ((addr->sa_family != AF_INET) ||
+		    (addr->sa_len != sizeof(struct sockaddr_in))) {
+#else
+		if (addr->sa_family != AF_INET) {
+#endif
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			return (EINVAL);
+		}
+	}
+	return (sctp_inpcb_bind(so, addr, NULL, p));
+}
+
+#endif
+#if defined(__Userspace__)
+
+int
+sctpconn_attach(struct socket *so, int proto SCTP_UNUSED, uint32_t vrf_id)
+{
+	struct sctp_inpcb *inp;
+	struct inpcb *ip_inp;
+	int error;
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp != NULL) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_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;
+	inp->sctp_flags |= SCTP_PCB_FLAGS_BOUND_CONN;
+	ip_inp = &inp->ip_inp.inp;
+	ip_inp->inp_vflag |= INP_CONN;
+	ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
+	SCTP_INP_WUNLOCK(inp);
+	return (0);
+}
+
+int
+sctpconn_bind(struct socket *so, struct sockaddr *addr)
+{
+	struct sctp_inpcb *inp;
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (EINVAL);
+	}
+	if (addr != NULL) {
+#ifdef HAVE_SA_LEN
+		if ((addr->sa_family != AF_CONN) ||
+		    (addr->sa_len != sizeof(struct sockaddr_conn))) {
+#else
+		if (addr->sa_family != AF_CONN) {
+#endif
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			return (EINVAL);
+		}
+	}
+	return (sctp_inpcb_bind(so, addr, NULL, NULL));
+}
+
+#endif
+#if defined(__FreeBSD__) || defined(_WIN32) || defined(__Userspace__)
+void
+sctp_close(struct socket *so)
+{
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	struct epoch_tracker et;
+#endif
+	struct sctp_inpcb *inp;
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL)
+		return;
+
+	/* Inform all the lower layer assoc that we
+	 * are done.
+	 */
+	SCTP_INP_WLOCK(inp);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	NET_EPOCH_ENTER(et);
+#endif
+#ifdef SCTP_LOG_CLOSING
+	sctp_log_closing(inp, NULL, 17);
+#endif
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
+		inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
+#if defined(__Userspace__)
+		if (((so->so_options & SCTP_SO_LINGER) && (so->so_linger == 0)) ||
+		    (SCTP_SBAVAIL(&so->so_rcv) > 0)) {
+#else
+		if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
+		    (SCTP_SBAVAIL(&so->so_rcv) > 0)) {
+#endif
+#ifdef SCTP_LOG_CLOSING
+			sctp_log_closing(inp, NULL, 13);
+#endif
+			SCTP_INP_WUNLOCK(inp);
+			sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
+					SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
+		} else {
+#ifdef SCTP_LOG_CLOSING
+			sctp_log_closing(inp, NULL, 14);
+#endif
+			SCTP_INP_WUNLOCK(inp);
+			sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
+					SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
+		}
+		/* The socket is now detached, no matter what
+		 * the state of the SCTP association.
+		 */
+		SOCK_LOCK(so);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		if (!SOLISTENING(so)) {
+			SCTP_SB_CLEAR(so->so_snd);
+			SCTP_SB_CLEAR(so->so_rcv);
+		}
+#else
+		SCTP_SB_CLEAR(so->so_snd);
+		SCTP_SB_CLEAR(so->so_rcv);
+#endif
+#if !(defined(__APPLE__) && !defined(__Userspace__))
+		/* Now null out the reference, we are completely detached. */
+		so->so_pcb = NULL;
+#endif
+		SOCK_UNLOCK(so);
+	} else {
+		SCTP_INP_WUNLOCK(inp);
+	}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	NET_EPOCH_EXIT(et);
+#endif
+}
+#else
+int
+sctp_detach(struct socket *so)
+{
+	struct sctp_inpcb *inp;
+	uint32_t flags;
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL) {
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		return;
+#else
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		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)))) {
+#if defined(__Userspace__)
+		if (((so->so_options & SCTP_SO_LINGER) && (so->so_linger == 0)) ||
+		    (SCTP_SBAVAIL(&so->so_rcv) > 0)) {
+#else
+		if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
+		    (SCTP_SBAVAIL(&so->so_rcv) > 0)) {
+#endif
+#ifdef SCTP_LOG_CLOSING
+			sctp_log_closing(inp, NULL, 13);
+#endif
+			sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
+					SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
+		} else {
+#ifdef SCTP_LOG_CLOSING
+			sctp_log_closing(inp, NULL, 13);
+#endif
+			sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
+					SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
+		}
+		/* The socket is now detached, no matter what
+		 * the state of the SCTP association.
+		 */
+		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__) && !defined(__Userspace__))
+		/* Now disconnect */
+		so->so_pcb = NULL;
+#endif
+	} else {
+		flags = inp->sctp_flags;
+		if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
+			goto sctp_must_try_again;
+		}
+	}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	return;
+#else
+	return (0);
+#endif
+}
+#endif
+
+#if defined(__Userspace__)
+/* __Userspace__ is not calling sctp_sendm */
+#endif
+#if !(defined(_WIN32) && !defined(__Userspace__))
+int
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+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
+int
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+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
+	struct sctp_inpcb *inp;
+	int error;
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL) {
+		if (control) {
+			sctp_m_freem(control);
+			control = NULL;
+		}
+		SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		sctp_m_freem(m);
+		return (EINVAL);
+	}
+	/* Got to have an to address if we are NOT a connected socket */
+	if ((addr == NULL) &&
+	    ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
+	    (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
+		goto connected_type;
+	}
+
+	error = 0;
+	if (addr == NULL) {
+		SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
+		error = EDESTADDRREQ;
+	} else if (addr->sa_family != AF_INET) {
+		SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
+		error = EAFNOSUPPORT;
+#if defined(HAVE_SA_LEN)
+	} else if (addr->sa_len != sizeof(struct sockaddr_in)) {
+		SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		error = EINVAL;
+#endif
+	}
+	if (error != 0) {
+		sctp_m_freem(m);
+		if (control) {
+			sctp_m_freem(control);
+			control = NULL;
+		}
+		return (error);
+	}
+connected_type:
+	/* now what about control */
+	if (control) {
+		if (inp->control) {
+			sctp_m_freem(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__)) && !defined(__Userspace__)
+	/* FreeBSD 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, FreeBSD, and MacOS have methods for
+		 * re-defining sosend to use the sctp_sosend. One can
+		 * optionally switch back to this code (by changing back the
+		 * definitions) but this is not advisable. This code is used
+		 * by FreeBSD when sending a file with sendfile() though.
+		 */
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		struct epoch_tracker et;
+#endif
+		int ret;
+
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	NET_EPOCH_ENTER(et);
+#endif
+		ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	NET_EPOCH_EXIT(et);
+#endif
+		inp->pkt = NULL;
+		inp->control = NULL;
+		return (ret);
+	} else {
+		return (0);
+	}
+}
+#endif
+
+int
+sctp_disconnect(struct socket *so)
+{
+	struct sctp_inpcb *inp;
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
+		return (ENOTCONN);
+	}
+	SCTP_INP_RLOCK(inp);
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+	    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
+		if (LIST_EMPTY(&inp->sctp_asoc_list)) {
+			/* No connection */
+			SCTP_INP_RUNLOCK(inp);
+			return (0);
+		} else {
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+			struct epoch_tracker et;
+#endif
+			struct sctp_association *asoc;
+			struct sctp_tcb *stcb;
+
+			stcb = LIST_FIRST(&inp->sctp_asoc_list);
+			if (stcb == NULL) {
+				SCTP_INP_RUNLOCK(inp);
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				return (EINVAL);
+			}
+			SCTP_TCB_LOCK(stcb);
+			asoc = &stcb->asoc;
+			if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
+				/* We are about to be freed, out of here */
+				SCTP_TCB_UNLOCK(stcb);
+				SCTP_INP_RUNLOCK(inp);
+				return (0);
+			}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+			NET_EPOCH_ENTER(et);
+#endif
+#if defined(__Userspace__)
+			if (((so->so_options & SCTP_SO_LINGER) && (so->so_linger == 0)) ||
+			    (SCTP_SBAVAIL(&so->so_rcv) > 0)) {
+#else
+			if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
+			    (SCTP_SBAVAIL(&so->so_rcv) > 0)) {
+#endif
+				if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
+					/* Left with Data unread */
+					struct mbuf *op_err;
+
+					op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
+					sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
+					SCTP_STAT_INCR_COUNTER32(sctps_aborted);
+				}
+				SCTP_INP_RUNLOCK(inp);
+				if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
+				    (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
+					SCTP_STAT_DECR_GAUGE32(sctps_currestab);
+				}
+				(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
+				                      SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
+				/* No unlock tcb assoc is gone */
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+				NET_EPOCH_EXIT(et);
+#endif
+				return (0);
+			}
+			if (TAILQ_EMPTY(&asoc->send_queue) &&
+			    TAILQ_EMPTY(&asoc->sent_queue) &&
+			    (asoc->stream_queue_cnt == 0)) {
+				/* there is nothing queued to send, so done */
+				if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete)(stcb, asoc)) {
+					goto abort_anyway;
+				}
+				if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
+				    (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
+					/* only send SHUTDOWN 1st time thru */
+					struct sctp_nets *netp;
+
+					if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
+					    (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
+						SCTP_STAT_DECR_GAUGE32(sctps_currestab);
+					}
+					SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
+					sctp_stop_timers_for_shutdown(stcb);
+					if (stcb->asoc.alternate) {
+						netp = stcb->asoc.alternate;
+					} else {
+						netp = stcb->asoc.primary_destination;
+					}
+					sctp_send_shutdown(stcb,netp);
+					sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
+					                 stcb->sctp_ep, stcb, netp);
+					sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
+					                 stcb->sctp_ep, stcb, NULL);
+					sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
+				}
+			} else {
+				/*
+				 * we still got (or just got) data to send,
+				 * so set SHUTDOWN_PENDING
+				 */
+				/*
+				 * XXX sockets draft says that SCTP_EOF
+				 * should be sent with no data. currently,
+				 * we will allow user data to be sent first
+				 * and move to SHUTDOWN-PENDING
+				 */
+				SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
+				sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
+				if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete)(stcb, asoc)) {
+					SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
+				}
+				if (TAILQ_EMPTY(&asoc->send_queue) &&
+				    TAILQ_EMPTY(&asoc->sent_queue) &&
+				    (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
+					struct mbuf *op_err;
+				abort_anyway:
+					op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
+					stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
+					sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
+					SCTP_STAT_INCR_COUNTER32(sctps_aborted);
+					if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
+					    (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
+						SCTP_STAT_DECR_GAUGE32(sctps_currestab);
+					}
+					SCTP_INP_RUNLOCK(inp);
+					(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
+					                      SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+					NET_EPOCH_EXIT(et);
+#endif
+					return (0);
+				} else {
+					sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
+				}
+			}
+			soisdisconnecting(so);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+			NET_EPOCH_EXIT(et);
+#endif
+			SCTP_TCB_UNLOCK(stcb);
+			SCTP_INP_RUNLOCK(inp);
+			return (0);
+		}
+		/* not reached */
+	} else {
+		/* UDP model does not support this */
+		SCTP_INP_RUNLOCK(inp);
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
+		return (EOPNOTSUPP);
+	}
+}
+
+#if defined(__FreeBSD__) || defined(_WIN32) || defined(__Userspace__)
+int
+sctp_flush(struct socket *so, int how)
+{
+	/*
+	 * We will just clear out the values and let
+	 * subsequent close clear out the data, if any.
+	 * Note if the user did a shutdown(SHUT_RD) they
+	 * will not be able to read the data, the socket
+	 * will block that from happening.
+	 */
+	struct sctp_inpcb *inp;
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (EINVAL);
+	}
+	SCTP_INP_RLOCK(inp);
+	/* For the 1 to many model this does nothing */
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
+		SCTP_INP_RUNLOCK(inp);
+		return (0);
+	}
+	SCTP_INP_RUNLOCK(inp);
+	if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
+		/* First make sure the sb will be happy, we don't
+		 * use these except maybe the count
+		 */
+		SCTP_INP_WLOCK(inp);
+		SCTP_INP_READ_LOCK(inp);
+		inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
+		SCTP_INP_READ_UNLOCK(inp);
+		SCTP_INP_WUNLOCK(inp);
+		SOCK_LOCK(so);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		KASSERT(!SOLISTENING(so),
+		        ("sctp_flush: called on listening socket %p", so));
+#endif
+		SCTP_SB_CLEAR(so->so_rcv);
+		SOCK_UNLOCK(so);
+	}
+	if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
+		/* First make sure the sb will be happy, we don't
+		 * use these except maybe the count
+		 */
+		SOCK_LOCK(so);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		KASSERT(!SOLISTENING(so),
+		        ("sctp_flush: called on listening socket %p", so));
+#endif
+		SCTP_SB_CLEAR(so->so_snd);
+		SOCK_UNLOCK(so);
+	}
+	return (0);
+}
+#endif
+
+int
+sctp_shutdown(struct socket *so)
+{
+	struct sctp_inpcb *inp;
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (EINVAL);
+	}
+	SCTP_INP_RLOCK(inp);
+	/* For UDP model this is a invalid call */
+	if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+	      (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
+		/* Restore the flags that the soshutdown took away. */
+#if (defined(__FreeBSD__) || defined(_WIN32)) && !defined(__Userspace__)
+		SOCKBUF_LOCK(&so->so_rcv);
+		so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
+		SOCKBUF_UNLOCK(&so->so_rcv);
+#else
+		SOCK_LOCK(so);
+		so->so_state &= ~SS_CANTRCVMORE;
+		SOCK_UNLOCK(so);
+#endif
+		/* This proc will wakeup for read and do nothing (I hope) */
+		SCTP_INP_RUNLOCK(inp);
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
+		return (EOPNOTSUPP);
+	} else {
+		/*
+		 * Ok, if we reach here its the TCP model and it is either
+		 * a SHUT_WR or SHUT_RDWR.
+		 * This means we put the shutdown flag against it.
+		 */
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		struct epoch_tracker et;
+#endif
+		struct sctp_tcb *stcb;
+		struct sctp_association *asoc;
+		struct sctp_nets *netp;
+
+		if ((so->so_state &
+		     (SS_ISCONNECTED|SS_ISCONNECTING|SS_ISDISCONNECTING)) == 0) {
+			SCTP_INP_RUNLOCK(inp);
+			return (ENOTCONN);
+		}
+		socantsendmore(so);
+
+		stcb = LIST_FIRST(&inp->sctp_asoc_list);
+		if (stcb == NULL) {
+			/*
+			 * Ok, we hit the case that the shutdown call was
+			 * made after an abort or something. Nothing to do
+			 * now.
+			 */
+			SCTP_INP_RUNLOCK(inp);
+			return (0);
+		}
+		SCTP_TCB_LOCK(stcb);
+		asoc = &stcb->asoc;
+		if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
+			SCTP_TCB_UNLOCK(stcb);
+			SCTP_INP_RUNLOCK(inp);
+			return (0);
+		}
+		if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
+		    (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
+		    (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
+			/* If we are not in or before ESTABLISHED, there is
+			 * no protocol action required.
+			 */
+			SCTP_TCB_UNLOCK(stcb);
+			SCTP_INP_RUNLOCK(inp);
+			return (0);
+		}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		NET_EPOCH_ENTER(et);
+#endif
+		if (stcb->asoc.alternate) {
+			netp = stcb->asoc.alternate;
+		} else {
+			netp = stcb->asoc.primary_destination;
+		}
+		if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
+		    TAILQ_EMPTY(&asoc->send_queue) &&
+		    TAILQ_EMPTY(&asoc->sent_queue) &&
+		    (asoc->stream_queue_cnt == 0)) {
+			if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete)(stcb, asoc)) {
+				goto abort_anyway;
+			}
+			/* there is nothing queued to send, so I'm done... */
+			SCTP_STAT_DECR_GAUGE32(sctps_currestab);
+			SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
+			sctp_stop_timers_for_shutdown(stcb);
+			sctp_send_shutdown(stcb, netp);
+			sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
+			                 stcb->sctp_ep, stcb, netp);
+		} else {
+			/*
+			 * We still got (or just got) data to send, so set
+			 * SHUTDOWN_PENDING.
+			 */
+			SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
+			if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete)(stcb, asoc)) {
+				SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
+			}
+			if (TAILQ_EMPTY(&asoc->send_queue) &&
+			    TAILQ_EMPTY(&asoc->sent_queue) &&
+			    (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
+				struct mbuf *op_err;
+			abort_anyway:
+				op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
+				stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
+				SCTP_INP_RUNLOCK(inp);
+				sctp_abort_an_association(stcb->sctp_ep, stcb,
+				                          op_err, false, SCTP_SO_LOCKED);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+				NET_EPOCH_EXIT(et);
+#endif
+				return (0);
+			}
+		}
+		sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
+		/* XXX: Why do this in the case where we have still data queued? */
+		sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
+		SCTP_TCB_UNLOCK(stcb);
+		SCTP_INP_RUNLOCK(inp);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		NET_EPOCH_EXIT(et);
+#endif
+		return (0);
+	}
+}
+
+/*
+ * copies a "user" presentable address and removes embedded scope, etc.
+ * returns 0 on success, 1 on error
+ */
+static uint32_t
+sctp_fill_user_address(struct sockaddr *dst, struct sockaddr *src)
+{
+#ifdef INET6
+#if defined(SCTP_EMBEDDED_V6_SCOPE)
+	struct sockaddr_in6 lsa6;
+
+	src = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)src,
+	    &lsa6);
+#endif
+#endif
+#ifdef HAVE_SA_LEN
+	memcpy(dst, src, src->sa_len);
+#else
+	switch (src->sa_family) {
+#ifdef INET
+	case AF_INET:
+		memcpy(dst, src, sizeof(struct sockaddr_in));
+		break;
+#endif
+#ifdef INET6
+	case AF_INET6:
+		memcpy(dst, src, sizeof(struct sockaddr_in6));
+		break;
+#endif
+#if defined(__Userspace__)
+	case AF_CONN:
+		memcpy(dst, src, sizeof(struct sockaddr_conn));
+		break;
+#endif
+	default:
+		/* TSNH */
+		break;
+	}
+#endif
+	return (0);
+}
+
+static size_t
+sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
+                           struct sctp_tcb *stcb,
+                           size_t limit,
+                           struct sockaddr *addr,
+                           uint32_t vrf_id)
+{
+	struct sctp_ifn *sctp_ifn;
+	struct sctp_ifa *sctp_ifa;
+	size_t actual;
+	int loopback_scope;
+#if defined(INET)
+	int ipv4_local_scope, ipv4_addr_legal;
+#endif
+#if defined(INET6)
+	int local_scope, site_scope, ipv6_addr_legal;
+#endif
+#if defined(__Userspace__)
+	int conn_addr_legal;
+#endif
+	struct sctp_vrf *vrf;
+
+	SCTP_IPI_ADDR_LOCK_ASSERT();
+	actual = 0;
+	if (limit == 0)
+		return (actual);
+
+	if (stcb) {
+		/* Turn on all the appropriate scope */
+		loopback_scope = stcb->asoc.scope.loopback_scope;
+#if defined(INET)
+		ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
+		ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
+#endif
+#if defined(INET6)
+		local_scope = stcb->asoc.scope.local_scope;
+		site_scope = stcb->asoc.scope.site_scope;
+		ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
+#endif
+#if defined(__Userspace__)
+		conn_addr_legal = stcb->asoc.scope.conn_addr_legal;
+#endif
+	} else {
+		/* Use generic values for endpoints. */
+		loopback_scope = 1;
+#if defined(INET)
+		ipv4_local_scope = 1;
+#endif
+#if defined(INET6)
+		local_scope = 1;
+		site_scope = 1;
+#endif
+		if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
+#if defined(INET6)
+			ipv6_addr_legal = 1;
+#endif
+#if defined(INET)
+			if (SCTP_IPV6_V6ONLY(inp)) {
+				ipv4_addr_legal = 0;
+			} else {
+				ipv4_addr_legal = 1;
+			}
+#endif
+#if defined(__Userspace__)
+			conn_addr_legal = 0;
+#endif
+		} else {
+#if defined(INET6)
+			ipv6_addr_legal = 0;
+#endif
+#if defined(__Userspace__)
+			if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_CONN) {
+				conn_addr_legal = 1;
+#if defined(INET)
+				ipv4_addr_legal = 0;
+#endif
+			} else {
+				conn_addr_legal = 0;
+#if defined(INET)
+				ipv4_addr_legal = 1;
+#endif
+			}
+#else
+#if defined(INET)
+			ipv4_addr_legal = 1;
+#endif
+#endif
+		}
+	}
+	vrf = sctp_find_vrf(vrf_id);
+	if (vrf == NULL) {
+		return (0);
+	}
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
+		LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
+			if ((loopback_scope == 0) &&
+			    SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
+				/* Skip loopback if loopback_scope not set */
+				continue;
+			}
+			LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
+				if (stcb) {
+					/*
+					 * For the BOUND-ALL case, the list
+					 * associated with a TCB is Always
+					 * considered a reverse list.. i.e.
+					 * it lists addresses that are NOT
+					 * part of the association. If this
+					 * is one of those we must skip it.
+					 */
+					if (sctp_is_addr_restricted(stcb,
+					                            sctp_ifa)) {
+						continue;
+					}
+				}
+				switch (sctp_ifa->address.sa.sa_family) {
+#ifdef INET
+				case AF_INET:
+					if (ipv4_addr_legal) {
+						struct sockaddr_in *sin;
+
+						sin = &sctp_ifa->address.sin;
+						if (sin->sin_addr.s_addr == 0) {
+							/*
+							 * we skip unspecified
+							 * addresses
+							 */
+							continue;
+						}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+						if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
+						                     &sin->sin_addr) != 0) {
+							continue;
+						}
+#endif
+						if ((ipv4_local_scope == 0) &&
+						    (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
+							continue;
+						}
+#ifdef INET6
+						if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
+							if (actual + sizeof(struct sockaddr_in6) > limit) {
+								return (actual);
+							}
+							in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)addr);
+							((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
+							addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
+							actual += sizeof(struct sockaddr_in6);
+						} else {
+#endif
+							if (actual + sizeof(struct sockaddr_in) > limit) {
+								return (actual);
+							}
+							memcpy(addr, sin, sizeof(struct sockaddr_in));
+							((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
+							addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in));
+							actual += sizeof(struct sockaddr_in);
+#ifdef INET6
+						}
+#endif
+					} else {
+						continue;
+					}
+					break;
+#endif
+#ifdef INET6
+				case AF_INET6:
+					if (ipv6_addr_legal) {
+						struct sockaddr_in6 *sin6;
+
+#if defined(SCTP_EMBEDDED_V6_SCOPE) && !defined(SCTP_KAME)
+						struct sockaddr_in6 lsa6;
+#endif
+						sin6 = &sctp_ifa->address.sin6;
+						if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
+							/*
+							 * we skip unspecified
+							 * addresses
+							 */
+							continue;
+						}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+						if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
+						                     &sin6->sin6_addr) != 0) {
+							continue;
+						}
+#endif
+						if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
+							if (local_scope == 0)
+								continue;
+#if defined(SCTP_EMBEDDED_V6_SCOPE)
+							if (sin6->sin6_scope_id == 0) {
+#ifdef SCTP_KAME
+								if (sa6_recoverscope(sin6) != 0)
+									/*
+									 * bad link
+									 * local
+									 * address
+									 */
+									continue;
+#else
+								lsa6 = *sin6;
+								if (in6_recoverscope(&lsa6,
+										     &lsa6.sin6_addr,
+										     NULL))
+									/*
+									 * bad link
+									 * local
+									 * address
+									 */
+								continue;
+								sin6 = &lsa6;
+#endif				/* SCTP_KAME */
+							}
+#endif /* SCTP_EMBEDDED_V6_SCOPE */
+						}
+						if ((site_scope == 0) &&
+						    (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
+							continue;
+						}
+						if (actual + sizeof(struct sockaddr_in6) > limit) {
+							return (actual);
+						}
+						memcpy(addr, sin6, sizeof(struct sockaddr_in6));
+						((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
+						addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
+						actual += sizeof(struct sockaddr_in6);
+					} else {
+						continue;
+					}
+					break;
+#endif
+#if defined(__Userspace__)
+				case AF_CONN:
+					if (conn_addr_legal) {
+						if (actual + sizeof(struct sockaddr_conn) > limit) {
+							return (actual);
+						}
+						memcpy(addr, &sctp_ifa->address.sconn, sizeof(struct sockaddr_conn));
+						((struct sockaddr_conn *)addr)->sconn_port = inp->sctp_lport;
+						addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_conn));
+						actual += sizeof(struct sockaddr_conn);
+					} else {
+						continue;
+					}
+#endif
+				default:
+					/* TSNH */
+					break;
+				}
+			}
+		}
+	} else {
+		struct sctp_laddr *laddr;
+		size_t sa_len;
+
+		LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
+			if (stcb) {
+				if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
+					continue;
+				}
+			}
+#ifdef HAVE_SA_LEN
+			sa_len = laddr->ifa->address.sa.sa_len;
+#else
+			switch (laddr->ifa->address.sa.sa_family) {
+#ifdef INET
+			case AF_INET:
+				sa_len = sizeof(struct sockaddr_in);
+				break;
+#endif
+#ifdef INET6
+			case AF_INET6:
+				sa_len = sizeof(struct sockaddr_in6);
+				break;
+#endif
+#if defined(__Userspace__)
+			case AF_CONN:
+				sa_len = sizeof(struct sockaddr_conn);
+				break;
+#endif
+			default:
+				/* TSNH */
+				sa_len = 0;
+				break;
+			}
+#endif
+			if (actual + sa_len > limit) {
+				return (actual);
+			}
+			if (sctp_fill_user_address(addr, &laddr->ifa->address.sa))
+				continue;
+			switch (laddr->ifa->address.sa.sa_family) {
+#ifdef INET
+			case AF_INET:
+				((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
+				break;
+#endif
+#ifdef INET6
+			case AF_INET6:
+				((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
+				break;
+#endif
+#if defined(__Userspace__)
+			case AF_CONN:
+				((struct sockaddr_conn *)addr)->sconn_port = inp->sctp_lport;
+				break;
+#endif
+			default:
+				/* TSNH */
+				break;
+			}
+			addr = (struct sockaddr *)((caddr_t)addr + sa_len);
+			actual += sa_len;
+		}
+	}
+	return (actual);
+}
+
+static size_t
+sctp_fill_up_addresses(struct sctp_inpcb *inp,
+                       struct sctp_tcb *stcb,
+                       size_t limit,
+                       struct sockaddr *addr)
+{
+	size_t size;
+#ifdef SCTP_MVRF
+	uint32_t id;
+#endif
+
+	SCTP_IPI_ADDR_RLOCK();
+#ifdef SCTP_MVRF
+/*
+ * FIX ME: ?? this WILL report duplicate addresses if they appear
+ * in more than one VRF.
+ */
+	/* fill up addresses for all VRFs on the endpoint */
+	size = 0;
+	for (id = 0; (id < inp->num_vrfs) && (size < limit); id++) {
+		size += sctp_fill_up_addresses_vrf(inp, stcb, limit, addr,
+		                                   inp->m_vrf_ids[id]);
+		addr = (struct sockaddr *)((caddr_t)addr + size);
+	}
+#else
+	/* fill up addresses for the endpoint's default vrf */
+	size = sctp_fill_up_addresses_vrf(inp, stcb, limit, addr,
+	                                  inp->def_vrf_id);
+#endif
+	SCTP_IPI_ADDR_RUNLOCK();
+	return (size);
+}
+
+static size_t
+sctp_max_size_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
+{
+	struct sctp_vrf *vrf;
+	size_t size;
+
+	/*
+	 * In both sub-set bound an bound_all cases we return the size of
+	 * the maximum number of addresses that you could get. In reality
+	 * the sub-set bound may have an exclusion list for a given TCB or
+	 * in the bound-all case a TCB may NOT include the loopback or other
+	 * addresses as well.
+	 */
+	SCTP_IPI_ADDR_LOCK_ASSERT();
+	vrf = sctp_find_vrf(vrf_id);
+	if (vrf == NULL) {
+		return (0);
+	}
+	size = 0;
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
+		struct sctp_ifn *sctp_ifn;
+		struct sctp_ifa *sctp_ifa;
+
+		LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
+			LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
+				/* Count them if they are the right type */
+				switch (sctp_ifa->address.sa.sa_family) {
+#ifdef INET
+				case AF_INET:
+#ifdef INET6
+					if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
+						size += sizeof(struct sockaddr_in6);
+					else
+						size += sizeof(struct sockaddr_in);
+#else
+					size += sizeof(struct sockaddr_in);
+#endif
+					break;
+#endif
+#ifdef INET6
+				case AF_INET6:
+					size += sizeof(struct sockaddr_in6);
+					break;
+#endif
+#if defined(__Userspace__)
+				case AF_CONN:
+					size += sizeof(struct sockaddr_conn);
+					break;
+#endif
+				default:
+					break;
+				}
+			}
+		}
+	} else {
+		struct sctp_laddr *laddr;
+
+		LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
+			switch (laddr->ifa->address.sa.sa_family) {
+#ifdef INET
+			case AF_INET:
+#ifdef INET6
+				if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
+					size += sizeof(struct sockaddr_in6);
+				else
+					size += sizeof(struct sockaddr_in);
+#else
+				size += sizeof(struct sockaddr_in);
+#endif
+				break;
+#endif
+#ifdef INET6
+			case AF_INET6:
+				size += sizeof(struct sockaddr_in6);
+				break;
+#endif
+#if defined(__Userspace__)
+			case AF_CONN:
+				size += sizeof(struct sockaddr_conn);
+				break;
+#endif
+			default:
+				break;
+			}
+		}
+	}
+	return (size);
+}
+
+static size_t
+sctp_max_size_addresses(struct sctp_inpcb *inp)
+{
+	size_t size;
+#ifdef SCTP_MVRF
+	int id;
+#endif
+
+	SCTP_IPI_ADDR_RLOCK();
+#ifdef SCTP_MVRF
+/*
+ * FIX ME: ?? this WILL count duplicate addresses if they appear
+ * in more than one VRF.
+ */
+	/* Maximum size of all addresses for all VRFs on the endpoint */
+	size = 0;
+	for (id = 0; id < inp->num_vrfs; id++) {
+		size += sctp_max_size_addresses_vrf(inp, inp->m_vrf_ids[id]);
+	}
+#else
+	/* Maximum size of all addresses for the endpoint's default VRF */
+	size = sctp_max_size_addresses_vrf(inp, inp->def_vrf_id);
+#endif
+	SCTP_IPI_ADDR_RUNLOCK();
+	return (size);
+}
+
+static int
+sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
+		  size_t optsize, void *p, int delay)
+{
+	int error;
+	int creat_lock_on = 0;
+	struct sctp_tcb *stcb = NULL;
+	struct sockaddr *sa;
+	unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
+	uint32_t vrf_id;
+	sctp_assoc_t *a_id;
+
+	SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
+
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
+	    (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
+		/* We are already connected AND the TCP model */
+		SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
+		return (EADDRINUSE);
+	}
+
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
+	    (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
+		SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (EINVAL);
+	}
+
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
+		SCTP_INP_RLOCK(inp);
+		stcb = LIST_FIRST(&inp->sctp_asoc_list);
+		SCTP_INP_RUNLOCK(inp);
+	}
+	if (stcb) {
+		SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
+		return (EALREADY);
+	}
+	SCTP_INP_INCR_REF(inp);
+	SCTP_ASOC_CREATE_LOCK(inp);
+	creat_lock_on = 1;
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
+	    (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
+		SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
+		error = EFAULT;
+		goto out_now;
+	}
+	totaddrp = (unsigned int *)optval;
+	totaddr = *totaddrp;
+	sa = (struct sockaddr *)(totaddrp + 1);
+	error = sctp_connectx_helper_find(inp, sa, totaddr, &num_v4, &num_v6, (unsigned int)(optsize - sizeof(int)));
+	if (error != 0) {
+		/* Already have or am bring up an association */
+		SCTP_ASOC_CREATE_UNLOCK(inp);
+		creat_lock_on = 0;
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+		goto out_now;
+	}
+#ifdef INET6
+	if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
+	    (num_v6 > 0)) {
+		error = EINVAL;
+		goto out_now;
+	}
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
+	    (num_v4 > 0)) {
+		if (SCTP_IPV6_V6ONLY(inp)) {
+			/*
+			 * if IPV6_V6ONLY flag, ignore connections destined
+			 * to a v4 addr or v4-mapped addr
+			 */
+			SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			goto out_now;
+		}
+	}
+#endif				/* INET6 */
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
+		/* Bind a ephemeral port */
+		error = sctp_inpcb_bind(so, NULL, NULL, p);
+		if (error) {
+			goto out_now;
+		}
+	}
+
+	/* FIX ME: do we want to pass in a vrf on the connect call? */
+	vrf_id = inp->def_vrf_id;
+
+	/* We are GOOD to go */
+	stcb = sctp_aloc_assoc_connected(inp, sa, &error, 0, 0, vrf_id,
+	                                 inp->sctp_ep.pre_open_stream_count,
+	                                 inp->sctp_ep.port,
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	                                 (struct thread *)p,
+#elif defined(_WIN32) && !defined(__Userspace__)
+	                                 (PKTHREAD)p,
+#else
+	                                 (struct proc *)p,
+#endif
+	                                 SCTP_INITIALIZE_AUTH_PARAMS);
+	if (stcb == NULL) {
+		/* Gak! no memory */
+		goto out_now;
+	}
+	SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
+	/* move to second address */
+	switch (sa->sa_family) {
+#ifdef INET
+	case AF_INET:
+		sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
+		break;
+#endif
+#ifdef INET6
+	case AF_INET6:
+		sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
+		break;
+#endif
+	default:
+		break;
+	}
+
+	error = 0;
+	sctp_connectx_helper_add(stcb, sa, (totaddr-1), &error);
+	/* Fill in the return id */
+	if (error) {
+		goto out_now;
+	}
+	a_id = (sctp_assoc_t *)optval;
+	*a_id = sctp_get_associd(stcb);
+
+	if (delay) {
+		/* doing delayed connection */
+		stcb->asoc.delayed_connection = 1;
+		sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
+	} else {
+		(void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
+		sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
+	}
+	SCTP_TCB_UNLOCK(stcb);
+ out_now:
+	if (creat_lock_on) {
+		SCTP_ASOC_CREATE_UNLOCK(inp);
+	}
+	SCTP_INP_DECR_REF(inp);
+	return (error);
+}
+
+#define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
+	    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
+		SCTP_INP_RLOCK(inp); \
+		stcb = LIST_FIRST(&inp->sctp_asoc_list); \
+		if (stcb) { \
+			SCTP_TCB_LOCK(stcb); \
+		} \
+		SCTP_INP_RUNLOCK(inp); \
+	} else if (assoc_id > SCTP_ALL_ASSOC) { \
+		stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
+		if (stcb == NULL) { \
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
+			error = ENOENT; \
+			break; \
+		} \
+	} else { \
+		stcb = NULL; \
+	} \
+}
+
+#define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
+	if (size < sizeof(type)) { \
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
+		error = EINVAL; \
+		break; \
+	} else { \
+		destp = (type *)srcp; \
+	} \
+}
+
+#if defined(__Userspace__)
+int
+#else
+static int
+#endif
+sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
+	    void *p) {
+	struct sctp_inpcb *inp = NULL;
+	int error, val = 0;
+	struct sctp_tcb *stcb = NULL;
+
+	if (optval == NULL) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (EINVAL);
+	}
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return EINVAL;
+	}
+	error = 0;
+
+	switch (optname) {
+	case SCTP_NODELAY:
+	case SCTP_AUTOCLOSE:
+	case SCTP_EXPLICIT_EOR:
+	case SCTP_AUTO_ASCONF:
+	case SCTP_DISABLE_FRAGMENTS:
+	case SCTP_I_WANT_MAPPED_V4_ADDR:
+	case SCTP_USE_EXT_RCVINFO:
+		SCTP_INP_RLOCK(inp);
+		switch (optname) {
+		case SCTP_DISABLE_FRAGMENTS:
+			val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
+			break;
+		case SCTP_I_WANT_MAPPED_V4_ADDR:
+			val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
+			break;
+		case SCTP_AUTO_ASCONF:
+			if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
+				/* only valid for bound all sockets */
+				val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+				goto flags_out;
+			}
+			break;
+		case SCTP_EXPLICIT_EOR:
+			val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
+			break;
+		case SCTP_NODELAY:
+			val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
+			break;
+		case SCTP_USE_EXT_RCVINFO:
+			val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
+			break;
+		case SCTP_AUTOCLOSE:
+			if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
+				val = sctp_ticks_to_secs(inp->sctp_ep.auto_close_time);
+			else
+				val = 0;
+			break;
+
+		default:
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
+			error = ENOPROTOOPT;
+		} /* end switch (sopt->sopt_name) */
+		if (*optsize < sizeof(val)) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+		}
+	flags_out:
+		SCTP_INP_RUNLOCK(inp);
+		if (error == 0) {
+			/* return the option value */
+			*(int *)optval = val;
+			*optsize = sizeof(val);
+		}
+		break;
+        case SCTP_GET_PACKET_LOG:
+	{
+#ifdef  SCTP_PACKET_LOGGING
+		uint8_t *target;
+		int ret;
+
+		SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
+		ret = sctp_copy_out_packet_log(target , (int)*optsize);
+		*optsize = ret;
+#else
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
+		error = EOPNOTSUPP;
+#endif
+		break;
+	}
+	case SCTP_REUSE_PORT:
+	{
+		uint32_t *value;
+
+		if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
+			/* Can't do this for a 1-m socket */
+			error = EINVAL;
+			break;
+		}
+		SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
+		*value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
+		*optsize = sizeof(uint32_t);
+		break;
+	}
+	case SCTP_PARTIAL_DELIVERY_POINT:
+	{
+		uint32_t *value;
+
+		SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
+		*value = inp->partial_delivery_point;
+		*optsize = sizeof(uint32_t);
+		break;
+	}
+	case SCTP_FRAGMENT_INTERLEAVE:
+	{
+		uint32_t *value;
+
+		SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
+		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
+			if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
+				*value = SCTP_FRAG_LEVEL_2;
+			} else {
+				*value = SCTP_FRAG_LEVEL_1;
+			}
+		} else {
+			*value = SCTP_FRAG_LEVEL_0;
+		}
+		*optsize = sizeof(uint32_t);
+		break;
+	}
+	case SCTP_INTERLEAVING_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			av->assoc_value = stcb->asoc.idata_supported;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				if (inp->idata_supported) {
+					av->assoc_value = 1;
+				} else {
+					av->assoc_value = 0;
+				}
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_CMT_ON_OFF:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+		if (stcb) {
+			av->assoc_value = stcb->asoc.sctp_cmt_on_off;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->sctp_cmt_on_off;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_PLUGGABLE_CC:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+		if (stcb) {
+			av->assoc_value = stcb->asoc.congestion_control_module;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_CC_OPTION:
+	{
+		struct sctp_cc_option *cc_opt;
+
+		SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
+		SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
+		if (stcb == NULL) {
+			error = EINVAL;
+		} else {
+			if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
+				error = ENOTSUP;
+			} else {
+				error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option)(stcb, 0, cc_opt);
+				*optsize = sizeof(struct sctp_cc_option);
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		}
+		break;
+	}
+	case SCTP_PLUGGABLE_SS:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+		if (stcb) {
+			av->assoc_value = stcb->asoc.stream_scheduling_module;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_SS_VALUE:
+	{
+		struct sctp_stream_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+		if (stcb) {
+			if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
+			    (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
+			                                               &av->stream_value) < 0)) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			} else {
+				*optsize = sizeof(struct sctp_stream_value);
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			/* Can't get stream value without association */
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+		}
+		break;
+	}
+	case SCTP_GET_ADDR_LEN:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		error = EINVAL;
+#ifdef INET
+		if (av->assoc_value == AF_INET) {
+			av->assoc_value = sizeof(struct sockaddr_in);
+			error = 0;
+		}
+#endif
+#ifdef INET6
+		if (av->assoc_value == AF_INET6) {
+			av->assoc_value = sizeof(struct sockaddr_in6);
+			error = 0;
+		}
+#endif
+#if defined(__Userspace__)
+		if (av->assoc_value == AF_CONN) {
+			av->assoc_value = sizeof(struct sockaddr_conn);
+			error = 0;
+		}
+#endif
+		if (error) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+		} else {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_GET_ASSOC_NUMBER:
+	{
+		uint32_t *value, cnt;
+
+		SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
+		SCTP_INP_RLOCK(inp);
+		if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+		    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
+			/* Can't do this for a 1-1 socket */
+			error = EINVAL;
+			SCTP_INP_RUNLOCK(inp);
+			break;
+		}
+		cnt = 0;
+		LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+			cnt++;
+		}
+		SCTP_INP_RUNLOCK(inp);
+		*value = cnt;
+		*optsize = sizeof(uint32_t);
+		break;
+	}
+	case SCTP_GET_ASSOC_ID_LIST:
+	{
+		struct sctp_assoc_ids *ids;
+		uint32_t at;
+		size_t limit;
+
+		SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
+		SCTP_INP_RLOCK(inp);
+		if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+		    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
+			/* Can't do this for a 1-1 socket */
+			error = EINVAL;
+			SCTP_INP_RUNLOCK(inp);
+			break;
+		}
+		at = 0;
+		limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
+		LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+			if (at < limit) {
+				ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
+				if (at == 0) {
+					error = EINVAL;
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+					break;
+				}
+			} else {
+				error = EINVAL;
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+				break;
+			}
+		}
+		SCTP_INP_RUNLOCK(inp);
+		if (error == 0) {
+			ids->gaids_number_of_ids = at;
+			*optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
+		}
+		break;
+	}
+	case SCTP_CONTEXT:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			av->assoc_value = stcb->asoc.context;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->sctp_context;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_VRF_ID:
+	{
+		uint32_t *default_vrfid;
+
+		SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
+		*default_vrfid = inp->def_vrf_id;
+		*optsize = sizeof(uint32_t);
+		break;
+	}
+	case SCTP_GET_ASOC_VRF:
+	{
+		struct sctp_assoc_value *id;
+
+		SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, id->assoc_id);
+		if (stcb == NULL) {
+			error = EINVAL;
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+		} else {
+			id->assoc_value = stcb->asoc.vrf_id;
+			SCTP_TCB_UNLOCK(stcb);
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_GET_VRF_IDS:
+	{
+#ifdef SCTP_MVRF
+		int siz_needed;
+		uint32_t *vrf_ids;
+
+		SCTP_CHECK_AND_CAST(vrf_ids, optval, uint32_t, *optsize);
+		siz_needed = inp->num_vrfs * sizeof(uint32_t);
+		if (*optsize < siz_needed) {
+			error = EINVAL;
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+		} else {
+			memcpy(vrf_ids, inp->m_vrf_ids, siz_needed);
+			*optsize = siz_needed;
+		}
+#else
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
+		error = EOPNOTSUPP;
+#endif
+		break;
+	}
+	case SCTP_GET_NONCE_VALUES:
+	{
+		struct sctp_get_nonce_values *gnv;
+
+		SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
+		SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
+
+		if (stcb) {
+			gnv->gn_peers_tag = stcb->asoc.peer_vtag;
+			gnv->gn_local_tag = stcb->asoc.my_vtag;
+			SCTP_TCB_UNLOCK(stcb);
+			*optsize = sizeof(struct sctp_get_nonce_values);
+		} else {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
+			error = ENOTCONN;
+		}
+		break;
+	}
+	case SCTP_DELAYED_SACK:
+	{
+		struct sctp_sack_info *sack;
+
+		SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
+		SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
+		if (stcb) {
+			sack->sack_delay = stcb->asoc.delayed_ack;
+			sack->sack_freq = stcb->asoc.sack_freq;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				sack->sack_delay = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
+				sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_sack_info);
+		}
+		break;
+	}
+	case SCTP_GET_SNDBUF_USE:
+	{
+		struct sctp_sockstat *ss;
+
+		SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
+		SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
+
+		if (stcb) {
+			ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
+			ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
+						 stcb->asoc.size_on_all_streams);
+			SCTP_TCB_UNLOCK(stcb);
+			*optsize = sizeof(struct sctp_sockstat);
+		} else {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
+			error = ENOTCONN;
+		}
+		break;
+	}
+	case SCTP_MAX_BURST:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			av->assoc_value = stcb->asoc.max_burst;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->sctp_ep.max_burst;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_MAXSEG:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			av->assoc_value = stcb->asoc.sctp_frag_point;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->sctp_frag_point;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_GET_STAT_LOG:
+		error = sctp_fill_stat_log(optval, optsize);
+		break;
+	case SCTP_EVENTS:
+	{
+		struct sctp_event_subscribe *events;
+
+		SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
+		memset(events, 0, sizeof(struct sctp_event_subscribe));
+		SCTP_INP_RLOCK(inp);
+		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
+			events->sctp_data_io_event = 1;
+
+		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
+			events->sctp_association_event = 1;
+
+		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
+			events->sctp_address_event = 1;
+
+		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
+			events->sctp_send_failure_event = 1;
+
+		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
+			events->sctp_peer_error_event = 1;
+
+		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
+			events->sctp_shutdown_event = 1;
+
+		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
+			events->sctp_partial_delivery_event = 1;
+
+		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
+			events->sctp_adaptation_layer_event = 1;
+
+		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
+			events->sctp_authentication_event = 1;
+
+		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
+			events->sctp_sender_dry_event = 1;
+
+		if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
+			events->sctp_stream_reset_event = 1;
+		SCTP_INP_RUNLOCK(inp);
+		*optsize = sizeof(struct sctp_event_subscribe);
+		break;
+	}
+	case SCTP_ADAPTATION_LAYER:
+	{
+		uint32_t *value;
+
+		SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
+
+		SCTP_INP_RLOCK(inp);
+		*value = inp->sctp_ep.adaptation_layer_indicator;
+		SCTP_INP_RUNLOCK(inp);
+		*optsize = sizeof(uint32_t);
+		break;
+	}
+	case SCTP_SET_INITIAL_DBG_SEQ:
+	{
+		uint32_t *value;
+
+		SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
+		SCTP_INP_RLOCK(inp);
+		*value = inp->sctp_ep.initial_sequence_debug;
+		SCTP_INP_RUNLOCK(inp);
+		*optsize = sizeof(uint32_t);
+		break;
+	}
+	case SCTP_GET_LOCAL_ADDR_SIZE:
+	{
+		uint32_t *value;
+
+		SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
+		SCTP_INP_RLOCK(inp);
+		*value = (uint32_t)sctp_max_size_addresses(inp);
+		SCTP_INP_RUNLOCK(inp);
+		*optsize = sizeof(uint32_t);
+		break;
+	}
+	case SCTP_GET_REMOTE_ADDR_SIZE:
+	{
+		uint32_t *value;
+		struct sctp_nets *net;
+		size_t size;
+
+		SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
+		/* FIXME MT: change to sctp_assoc_value? */
+		SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
+
+		if (stcb != NULL) {
+			size = 0;
+			/* Count the sizes */
+			TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+				switch (net->ro._l_addr.sa.sa_family) {
+#ifdef INET
+				case AF_INET:
+#ifdef INET6
+					if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
+						size += sizeof(struct sockaddr_in6);
+					} else {
+						size += sizeof(struct sockaddr_in);
+					}
+#else
+					size += sizeof(struct sockaddr_in);
+#endif
+					break;
+#endif
+#ifdef INET6
+				case AF_INET6:
+					size += sizeof(struct sockaddr_in6);
+					break;
+#endif
+#if defined(__Userspace__)
+				case AF_CONN:
+					size += sizeof(struct sockaddr_conn);
+					break;
+#endif
+				default:
+					break;
+				}
+			}
+			SCTP_TCB_UNLOCK(stcb);
+			*value = (uint32_t)size;
+			*optsize = sizeof(uint32_t);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((sctp_assoc_t)*value <= SCTP_ALL_ASSOC)) {
+				error = EINVAL;
+			} else {
+				error = ENOENT;
+			}
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+		}
+		break;
+	}
+	case SCTP_GET_PEER_ADDRESSES:
+		/*
+		 * Get the address information, an array is passed in to
+		 * fill up we pack it.
+		 */
+	{
+		size_t cpsz, left;
+		struct sockaddr *addr;
+		struct sctp_nets *net;
+		struct sctp_getaddresses *saddr;
+
+		SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
+		SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
+
+		if (stcb != NULL) {
+			left = *optsize - offsetof(struct sctp_getaddresses, addr);
+			*optsize = offsetof(struct sctp_getaddresses, addr);
+			addr = &saddr->addr[0].sa;
+
+			TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+				switch (net->ro._l_addr.sa.sa_family) {
+#ifdef INET
+				case AF_INET:
+#ifdef INET6
+					if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
+						cpsz = sizeof(struct sockaddr_in6);
+					} else {
+						cpsz = sizeof(struct sockaddr_in);
+					}
+#else
+					cpsz = sizeof(struct sockaddr_in);
+#endif
+					break;
+#endif
+#ifdef INET6
+				case AF_INET6:
+					cpsz = sizeof(struct sockaddr_in6);
+					break;
+#endif
+#if defined(__Userspace__)
+				case AF_CONN:
+					cpsz = sizeof(struct sockaddr_conn);
+					break;
+#endif
+				default:
+					cpsz = 0;
+					break;
+				}
+				if (cpsz == 0) {
+					break;
+				}
+				if (left < cpsz) {
+					/* not enough room. */
+					break;
+				}
+#if defined(INET) && defined(INET6)
+				if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
+				    (net->ro._l_addr.sa.sa_family == AF_INET)) {
+					/* Must map the address */
+					in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
+					                    (struct sockaddr_in6 *)addr);
+				} else {
+					memcpy(addr, &net->ro._l_addr, cpsz);
+				}
+#else
+				memcpy(addr, &net->ro._l_addr, cpsz);
+#endif
+				((struct sockaddr_in *)addr)->sin_port = stcb->rport;
+
+				addr = (struct sockaddr *)((caddr_t)addr + cpsz);
+				left -= cpsz;
+				*optsize += cpsz;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    (saddr->sget_assoc_id <= SCTP_ALL_ASSOC)) {
+				error = EINVAL;
+			} else {
+				error = ENOENT;
+			}
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+		}
+		break;
+	}
+	case SCTP_GET_LOCAL_ADDRESSES:
+	{
+		size_t limit, actual;
+		struct sctp_getaddresses *saddr;
+
+		SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
+		SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
+
+		if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+		    ((saddr->sget_assoc_id == SCTP_CURRENT_ASSOC) ||
+		     (saddr->sget_assoc_id == SCTP_ALL_ASSOC))) {
+			error = EINVAL;
+		} else {
+			limit = *optsize - offsetof(struct sctp_getaddresses, addr);
+			actual = sctp_fill_up_addresses(inp, stcb, limit, &saddr->addr[0].sa);
+			*optsize = offsetof(struct sctp_getaddresses, addr) + actual;
+		}
+		if (stcb != NULL) {
+			SCTP_TCB_UNLOCK(stcb);
+		}
+		break;
+	}
+	case SCTP_PEER_ADDR_PARAMS:
+	{
+		struct sctp_paddrparams *paddrp;
+		struct sctp_nets *net;
+		struct sockaddr *addr;
+#if defined(INET) && defined(INET6)
+		struct sockaddr_in sin_store;
+#endif
+
+		SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
+		SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
+
+#if defined(INET) && defined(INET6)
+		if (paddrp->spp_address.ss_family == AF_INET6) {
+			struct sockaddr_in6 *sin6;
+
+			sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
+			if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
+				in6_sin6_2_sin(&sin_store, sin6);
+				addr = (struct sockaddr *)&sin_store;
+			} else {
+				addr = (struct sockaddr *)&paddrp->spp_address;
+			}
+		} else {
+			addr = (struct sockaddr *)&paddrp->spp_address;
+		}
+#else
+		addr = (struct sockaddr *)&paddrp->spp_address;
+#endif
+		if (stcb != NULL) {
+			net = sctp_findnet(stcb, addr);
+		} else {
+			/* We increment here since sctp_findassociation_ep_addr() wil
+			 * do a decrement if it finds the stcb as long as the locked
+			 * tcb (last argument) is NOT a TCB.. aka NULL.
+			 */
+			net = NULL;
+			SCTP_INP_INCR_REF(inp);
+			stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
+			if (stcb == NULL) {
+				SCTP_INP_DECR_REF(inp);
+			}
+		}
+		if ((stcb != NULL) && (net == NULL)) {
+#ifdef INET
+			if (addr->sa_family == AF_INET) {
+				struct sockaddr_in *sin;
+
+				sin = (struct sockaddr_in *)addr;
+				if (sin->sin_addr.s_addr != INADDR_ANY) {
+					error = EINVAL;
+					SCTP_TCB_UNLOCK(stcb);
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+					break;
+				}
+			} else
+#endif
+#ifdef INET6
+			if (addr->sa_family == AF_INET6) {
+				struct sockaddr_in6 *sin6;
+
+				sin6 = (struct sockaddr_in6 *)addr;
+				if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
+					error = EINVAL;
+					SCTP_TCB_UNLOCK(stcb);
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+					break;
+				}
+			} else
+#endif
+#if defined(__Userspace__)
+			if (addr->sa_family == AF_CONN) {
+				struct sockaddr_conn *sconn;
+
+				sconn = (struct sockaddr_conn *)addr;
+				if (sconn->sconn_addr != NULL) {
+					error = EINVAL;
+					SCTP_TCB_UNLOCK(stcb);
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+					break;
+				}
+			} else
+#endif
+			{
+				error = EAFNOSUPPORT;
+				SCTP_TCB_UNLOCK(stcb);
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+				break;
+			}
+		}
+
+		if (stcb != NULL) {
+			/* Applies to the specific association */
+			paddrp->spp_flags = 0;
+			if (net != NULL) {
+				paddrp->spp_hbinterval = net->heart_beat_delay;
+				paddrp->spp_pathmaxrxt = net->failure_threshold;
+				paddrp->spp_pathmtu = net->mtu;
+				switch (net->ro._l_addr.sa.sa_family) {
+#ifdef INET
+				case AF_INET:
+					paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
+					break;
+#endif
+#ifdef INET6
+				case AF_INET6:
+					paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
+					break;
+#endif
+#if defined(__Userspace__)
+				case AF_CONN:
+					paddrp->spp_pathmtu -= sizeof(struct sctphdr);
+					break;
+#endif
+				default:
+					break;
+				}
+				/* get flags for HB */
+				if (net->dest_state & SCTP_ADDR_NOHB) {
+					paddrp->spp_flags |= SPP_HB_DISABLE;
+				} else {
+					paddrp->spp_flags |= SPP_HB_ENABLE;
+				}
+				/* get flags for PMTU */
+				if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
+					paddrp->spp_flags |= SPP_PMTUD_DISABLE;
+				} else {
+					paddrp->spp_flags |= SPP_PMTUD_ENABLE;
+				}
+				if (net->dscp & 0x01) {
+					paddrp->spp_dscp = net->dscp & 0xfc;
+					paddrp->spp_flags |= SPP_DSCP;
+				}
+#ifdef INET6
+				if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
+				    (net->flowlabel & 0x80000000)) {
+					paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
+					paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
+				}
+#endif
+			} else {
+				/*
+				 * No destination so return default
+				 * value
+				 */
+				paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
+				paddrp->spp_pathmtu = stcb->asoc.default_mtu;
+				if (stcb->asoc.default_dscp & 0x01) {
+					paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
+					paddrp->spp_flags |= SPP_DSCP;
+				}
+#ifdef INET6
+				if (stcb->asoc.default_flowlabel & 0x80000000) {
+					paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
+					paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
+				}
+#endif
+				/* default settings should be these */
+				if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
+					paddrp->spp_flags |= SPP_HB_DISABLE;
+				} else {
+					paddrp->spp_flags |= SPP_HB_ENABLE;
+				}
+				if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
+					paddrp->spp_flags |= SPP_PMTUD_DISABLE;
+				} else {
+					paddrp->spp_flags |= SPP_PMTUD_ENABLE;
+				}
+				paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
+			}
+			paddrp->spp_assoc_id = sctp_get_associd(stcb);
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
+				/* Use endpoint defaults */
+				SCTP_INP_RLOCK(inp);
+				paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
+				paddrp->spp_hbinterval = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
+				paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
+				/* get inp's default */
+				if (inp->sctp_ep.default_dscp & 0x01) {
+					paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
+					paddrp->spp_flags |= SPP_DSCP;
+				}
+#ifdef INET6
+				if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
+				    (inp->sctp_ep.default_flowlabel & 0x80000000)) {
+					paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
+					paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
+				}
+#endif
+				paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
+
+				if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
+					paddrp->spp_flags |= SPP_HB_ENABLE;
+				} else {
+					paddrp->spp_flags |= SPP_HB_DISABLE;
+				}
+				if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
+					paddrp->spp_flags |= SPP_PMTUD_ENABLE;
+				} else {
+					paddrp->spp_flags |= SPP_PMTUD_DISABLE;
+				}
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_paddrparams);
+		}
+		break;
+	}
+	case SCTP_GET_PEER_ADDR_INFO:
+	{
+		struct sctp_paddrinfo *paddri;
+		struct sctp_nets *net;
+		struct sockaddr *addr;
+#if defined(INET) && defined(INET6)
+		struct sockaddr_in sin_store;
+#endif
+
+		SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
+		SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
+
+#if defined(INET) && defined(INET6)
+		if (paddri->spinfo_address.ss_family == AF_INET6) {
+			struct sockaddr_in6 *sin6;
+
+			sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
+			if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
+				in6_sin6_2_sin(&sin_store, sin6);
+				addr = (struct sockaddr *)&sin_store;
+			} else {
+				addr = (struct sockaddr *)&paddri->spinfo_address;
+			}
+		} else {
+			addr = (struct sockaddr *)&paddri->spinfo_address;
+		}
+#else
+		addr = (struct sockaddr *)&paddri->spinfo_address;
+#endif
+		if (stcb != NULL) {
+			net = sctp_findnet(stcb, addr);
+		} else {
+			/* We increment here since sctp_findassociation_ep_addr() wil
+			 * do a decrement if it finds the stcb as long as the locked
+			 * tcb (last argument) is NOT a TCB.. aka NULL.
+			 */
+			net = NULL;
+			SCTP_INP_INCR_REF(inp);
+			stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
+			if (stcb == NULL) {
+				SCTP_INP_DECR_REF(inp);
+			}
+		}
+
+		if ((stcb != NULL) && (net != NULL)) {
+			if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
+				/* It's unconfirmed */
+				paddri->spinfo_state = SCTP_UNCONFIRMED;
+			} else if (net->dest_state & SCTP_ADDR_REACHABLE) {
+				/* It's active */
+				paddri->spinfo_state = SCTP_ACTIVE;
+			} else {
+				/* It's inactive */
+				paddri->spinfo_state = SCTP_INACTIVE;
+			}
+			paddri->spinfo_cwnd = net->cwnd;
+			paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
+			paddri->spinfo_rto = net->RTO;
+			paddri->spinfo_assoc_id = sctp_get_associd(stcb);
+			paddri->spinfo_mtu = net->mtu;
+			switch (addr->sa_family) {
+#if defined(INET)
+			case AF_INET:
+				paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
+				break;
+#endif
+#if defined(INET6)
+			case AF_INET6:
+				paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
+				break;
+#endif
+#if defined(__Userspace__)
+			case AF_CONN:
+				paddri->spinfo_mtu -= sizeof(struct sctphdr);
+				break;
+#endif
+			default:
+				break;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+			*optsize = sizeof(struct sctp_paddrinfo);
+		} else {
+			if (stcb != NULL) {
+				SCTP_TCB_UNLOCK(stcb);
+			}
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
+			error = ENOENT;
+		}
+		break;
+	}
+	case SCTP_PCB_STATUS:
+	{
+		struct sctp_pcbinfo *spcb;
+
+		SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
+		sctp_fill_pcbinfo(spcb);
+		*optsize = sizeof(struct sctp_pcbinfo);
+		break;
+	}
+	case SCTP_STATUS:
+	{
+		struct sctp_nets *net;
+		struct sctp_status *sstat;
+
+		SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
+		SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
+
+		if (stcb == NULL) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
+		sstat->sstat_assoc_id = sctp_get_associd(stcb);
+		sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
+		sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
+		/*
+		 * We can't include chunks that have been passed to
+		 * the socket layer. Only things in queue.
+		 */
+		sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
+					 stcb->asoc.cnt_on_all_streams);
+		sstat->sstat_instrms = stcb->asoc.streamincnt;
+		sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
+		sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb);
+		net = stcb->asoc.primary_destination;
+		if (net != NULL) {
+#ifdef HAVE_SA_LEN
+			memcpy(&sstat->sstat_primary.spinfo_address,
+			       &net->ro._l_addr,
+			       ((struct sockaddr *)(&net->ro._l_addr))->sa_len);
+#else
+			switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
+#if defined(INET)
+			case AF_INET:
+				memcpy(&sstat->sstat_primary.spinfo_address,
+				       &net->ro._l_addr,
+				       sizeof(struct sockaddr_in));
+				break;
+#endif
+#if defined(INET6)
+			case AF_INET6:
+				memcpy(&sstat->sstat_primary.spinfo_address,
+				       &net->ro._l_addr,
+				       sizeof(struct sockaddr_in6));
+				break;
+#endif
+#if defined(__Userspace__)
+			case AF_CONN:
+				memcpy(&sstat->sstat_primary.spinfo_address,
+				       &net->ro._l_addr,
+				       sizeof(struct sockaddr_conn));
+				break;
+#endif
+			default:
+				break;
+			}
+#endif
+			((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
+			/*
+			 * Again the user can get info from sctp_constants.h
+			 * for what the state of the network is.
+			 */
+			if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
+				/* It's unconfirmed */
+				sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
+			} else if (net->dest_state & SCTP_ADDR_REACHABLE) {
+				/* It's active */
+				sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
+			} else {
+				/* It's inactive */
+				sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
+			}
+			sstat->sstat_primary.spinfo_cwnd = net->cwnd;
+			sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
+			sstat->sstat_primary.spinfo_rto = net->RTO;
+			sstat->sstat_primary.spinfo_mtu = net->mtu;
+			switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
+#if defined(INET)
+			case AF_INET:
+				sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
+				break;
+#endif
+#if defined(INET6)
+			case AF_INET6:
+				sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
+				break;
+#endif
+#if defined(__Userspace__)
+			case AF_CONN:
+				sstat->sstat_primary.spinfo_mtu -= sizeof(struct sctphdr);
+				break;
+#endif
+			default:
+				break;
+			}
+		} else {
+			memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
+		}
+		sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
+		SCTP_TCB_UNLOCK(stcb);
+		*optsize = sizeof(struct sctp_status);
+		break;
+	}
+	case SCTP_RTOINFO:
+	{
+		struct sctp_rtoinfo *srto;
+
+		SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
+		SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
+
+		if (stcb) {
+			srto->srto_initial = stcb->asoc.initial_rto;
+			srto->srto_max = stcb->asoc.maxrto;
+			srto->srto_min = stcb->asoc.minrto;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				srto->srto_initial = inp->sctp_ep.initial_rto;
+				srto->srto_max = inp->sctp_ep.sctp_maxrto;
+				srto->srto_min = inp->sctp_ep.sctp_minrto;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_rtoinfo);
+		}
+		break;
+	}
+	case SCTP_TIMEOUTS:
+	{
+		struct sctp_timeouts *stimo;
+
+		SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
+		SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
+
+		if (stcb) {
+			stimo->stimo_init= stcb->asoc.timoinit;
+			stimo->stimo_data= stcb->asoc.timodata;
+			stimo->stimo_sack= stcb->asoc.timosack;
+			stimo->stimo_shutdown= stcb->asoc.timoshutdown;
+			stimo->stimo_heartbeat= stcb->asoc.timoheartbeat;
+			stimo->stimo_cookie= stcb->asoc.timocookie;
+			stimo->stimo_shutdownack= stcb->asoc.timoshutdownack;
+			SCTP_TCB_UNLOCK(stcb);
+			*optsize = sizeof(struct sctp_timeouts);
+		} else {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+		}
+		break;
+	}
+	case SCTP_ASSOCINFO:
+	{
+		struct sctp_assocparams *sasoc;
+
+		SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
+		SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
+
+		if (stcb) {
+			sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(stcb->asoc.cookie_life);
+			sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
+			sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
+			sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
+			sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(inp->sctp_ep.def_cookie_life);
+				sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
+				sasoc->sasoc_number_peer_destinations = 0;
+				sasoc->sasoc_peer_rwnd = 0;
+				sasoc->sasoc_local_rwnd = (uint32_t)sbspace(&inp->sctp_socket->so_rcv);
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assocparams);
+		}
+		break;
+	}
+	case SCTP_DEFAULT_SEND_PARAM:
+	{
+		struct sctp_sndrcvinfo *s_info;
+
+		SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
+		SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
+
+		if (stcb) {
+			memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_sndrcvinfo);
+		}
+		break;
+	}
+	case SCTP_INITMSG:
+	{
+		struct sctp_initmsg *sinit;
+
+		SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
+		SCTP_INP_RLOCK(inp);
+		sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
+		sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
+		sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
+		sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
+		SCTP_INP_RUNLOCK(inp);
+		*optsize = sizeof(struct sctp_initmsg);
+		break;
+	}
+	case SCTP_PRIMARY_ADDR:
+		/* we allow a "get" operation on this */
+	{
+		struct sctp_setprim *ssp;
+
+		SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
+		SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
+
+		if (stcb) {
+			union sctp_sockstore *addr;
+
+			addr = &stcb->asoc.primary_destination->ro._l_addr;
+			switch (addr->sa.sa_family) {
+#ifdef INET
+			case AF_INET:
+#ifdef INET6
+				if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
+					in6_sin_2_v4mapsin6(&addr->sin,
+					                    (struct sockaddr_in6 *)&ssp->ssp_addr);
+				} else {
+					memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
+				}
+#else
+				memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
+#endif
+				break;
+#endif
+#ifdef INET6
+			case AF_INET6:
+				memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
+				break;
+#endif
+#if defined(__Userspace__)
+			case AF_CONN:
+				memcpy(&ssp->ssp_addr, &addr->sconn, sizeof(struct sockaddr_conn));
+				break;
+#endif
+			default:
+				break;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+			*optsize = sizeof(struct sctp_setprim);
+		} else {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+		}
+		break;
+	}
+	case SCTP_HMAC_IDENT:
+	{
+		struct sctp_hmacalgo *shmac;
+		sctp_hmaclist_t *hmaclist;
+		size_t size;
+		int i;
+
+		SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
+
+		SCTP_INP_RLOCK(inp);
+		hmaclist = inp->sctp_ep.local_hmacs;
+		if (hmaclist == NULL) {
+			/* no HMACs to return */
+			*optsize = sizeof(*shmac);
+			SCTP_INP_RUNLOCK(inp);
+			break;
+		}
+		/* is there room for all of the hmac ids? */
+		size = sizeof(*shmac) + (hmaclist->num_algo *
+		                         sizeof(shmac->shmac_idents[0]));
+		if (*optsize < size) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			SCTP_INP_RUNLOCK(inp);
+			break;
+		}
+		/* copy in the list */
+		shmac->shmac_number_of_idents = hmaclist->num_algo;
+		for (i = 0; i < hmaclist->num_algo; i++) {
+			shmac->shmac_idents[i] = hmaclist->hmac[i];
+		}
+		SCTP_INP_RUNLOCK(inp);
+		*optsize = size;
+		break;
+	}
+	case SCTP_AUTH_ACTIVE_KEY:
+	{
+		struct sctp_authkeyid *scact;
+
+		SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
+		SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
+
+		if (stcb) {
+			/* get the active key on the assoc */
+			scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC))) {
+				/* get the endpoint active key */
+				SCTP_INP_RLOCK(inp);
+				scact->scact_keynumber = inp->sctp_ep.default_keyid;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_authkeyid);
+		}
+		break;
+	}
+	case SCTP_LOCAL_AUTH_CHUNKS:
+	{
+		struct sctp_authchunks *sac;
+		sctp_auth_chklist_t *chklist = NULL;
+		size_t size = 0;
+
+		SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
+		SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
+
+		if (stcb) {
+			/* get off the assoc */
+			chklist = stcb->asoc.local_auth_chunks;
+			/* is there enough space? */
+			size = sctp_auth_get_chklist_size(chklist);
+			if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
+				error = EINVAL;
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+			} else {
+				/* copy in the chunks */
+				(void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
+				sac->gauth_number_of_chunks = (uint32_t)size;
+				*optsize = sizeof(struct sctp_authchunks) + size;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC))) {
+				/* get off the endpoint */
+				SCTP_INP_RLOCK(inp);
+				chklist = inp->sctp_ep.local_auth_chunks;
+				/* is there enough space? */
+				size = sctp_auth_get_chklist_size(chklist);
+				if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
+					error = EINVAL;
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+				} else {
+					/* copy in the chunks */
+					(void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
+					sac->gauth_number_of_chunks = (uint32_t)size;
+					*optsize = sizeof(struct sctp_authchunks) + size;
+				}
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_PEER_AUTH_CHUNKS:
+	{
+		struct sctp_authchunks *sac;
+		sctp_auth_chklist_t *chklist = NULL;
+		size_t size = 0;
+
+		SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
+		SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
+
+		if (stcb) {
+			/* get off the assoc */
+			chklist = stcb->asoc.peer_auth_chunks;
+			/* is there enough space? */
+			size = sctp_auth_get_chklist_size(chklist);
+			if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
+				error = EINVAL;
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+			} else {
+				/* copy in the chunks */
+				(void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
+				sac->gauth_number_of_chunks = (uint32_t)size;
+				*optsize = sizeof(struct sctp_authchunks) + size;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+		        SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
+			error = ENOENT;
+		}
+		break;
+	}
+#if defined(HAVE_SCTP_PEELOFF_SOCKOPT)
+	case SCTP_PEELOFF:
+	{
+		struct sctp_peeloff_opt *peeloff;
+
+		SCTP_CHECK_AND_CAST(peeloff, optval, struct sctp_peeloff_opt, *optsize);
+		/* do the peeloff */
+		error = sctp_peeloff_option(p, peeloff);
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_peeloff_opt);
+		}
+	}
+	break;
+#endif /* HAVE_SCTP_PEELOFF_SOCKOPT */
+	case SCTP_EVENT:
+	{
+		struct sctp_event *event;
+		uint32_t event_type;
+
+		SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
+		SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
+
+		switch (event->se_type) {
+		case SCTP_ASSOC_CHANGE:
+			event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
+			break;
+		case SCTP_PEER_ADDR_CHANGE:
+			event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
+			break;
+		case SCTP_REMOTE_ERROR:
+			event_type = SCTP_PCB_FLAGS_RECVPEERERR;
+			break;
+		case SCTP_SEND_FAILED:
+			event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
+			break;
+		case SCTP_SHUTDOWN_EVENT:
+			event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
+			break;
+		case SCTP_ADAPTATION_INDICATION:
+			event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
+			break;
+		case SCTP_PARTIAL_DELIVERY_EVENT:
+			event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
+			break;
+		case SCTP_AUTHENTICATION_EVENT:
+			event_type = SCTP_PCB_FLAGS_AUTHEVNT;
+			break;
+		case SCTP_STREAM_RESET_EVENT:
+			event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
+			break;
+		case SCTP_SENDER_DRY_EVENT:
+			event_type = SCTP_PCB_FLAGS_DRYEVNT;
+			break;
+		case SCTP_NOTIFICATIONS_STOPPED_EVENT:
+			event_type = 0;
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
+			error = ENOTSUP;
+			break;
+		case SCTP_ASSOC_RESET_EVENT:
+			event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
+			break;
+		case SCTP_STREAM_CHANGE_EVENT:
+			event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
+			break;
+		case SCTP_SEND_FAILED_EVENT:
+			event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
+			break;
+		default:
+			event_type = 0;
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		if (event_type > 0) {
+			if (stcb) {
+				event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
+			} else {
+				if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+				    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+				    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+				     (event->se_assoc_id == SCTP_FUTURE_ASSOC))) {
+					SCTP_INP_RLOCK(inp);
+					event->se_on = sctp_is_feature_on(inp, event_type);
+					SCTP_INP_RUNLOCK(inp);
+				} else {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					error = EINVAL;
+				}
+			}
+		}
+		if (stcb != NULL) {
+			SCTP_TCB_UNLOCK(stcb);
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_event);
+		}
+		break;
+	}
+	case SCTP_RECVRCVINFO:
+		if (*optsize < sizeof(int)) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+		} else {
+			SCTP_INP_RLOCK(inp);
+			*(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
+			SCTP_INP_RUNLOCK(inp);
+			*optsize = sizeof(int);
+		}
+		break;
+	case SCTP_RECVNXTINFO:
+		if (*optsize < sizeof(int)) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+		} else {
+			SCTP_INP_RLOCK(inp);
+			*(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
+			SCTP_INP_RUNLOCK(inp);
+			*optsize = sizeof(int);
+		}
+		break;
+	case SCTP_DEFAULT_SNDINFO:
+	{
+		struct sctp_sndinfo *info;
+
+		SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
+		SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
+
+		if (stcb) {
+			info->snd_sid = stcb->asoc.def_send.sinfo_stream;
+			info->snd_flags = stcb->asoc.def_send.sinfo_flags;
+			info->snd_flags &= 0xfff0;
+			info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
+			info->snd_context = stcb->asoc.def_send.sinfo_context;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				info->snd_sid = inp->def_send.sinfo_stream;
+				info->snd_flags = inp->def_send.sinfo_flags;
+				info->snd_flags &= 0xfff0;
+				info->snd_ppid = inp->def_send.sinfo_ppid;
+				info->snd_context = inp->def_send.sinfo_context;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_sndinfo);
+		}
+		break;
+	}
+	case SCTP_DEFAULT_PRINFO:
+	{
+		struct sctp_default_prinfo *info;
+
+		SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
+		SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
+
+		if (stcb) {
+			info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
+			info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
+				info->pr_value = inp->def_send.sinfo_timetolive;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_default_prinfo);
+		}
+		break;
+	}
+	case SCTP_PEER_ADDR_THLDS:
+	{
+		struct sctp_paddrthlds *thlds;
+		struct sctp_nets *net;
+		struct sockaddr *addr;
+#if defined(INET) && defined(INET6)
+		struct sockaddr_in sin_store;
+#endif
+
+		SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
+		SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
+
+#if defined(INET) && defined(INET6)
+		if (thlds->spt_address.ss_family == AF_INET6) {
+			struct sockaddr_in6 *sin6;
+
+			sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
+			if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
+				in6_sin6_2_sin(&sin_store, sin6);
+				addr = (struct sockaddr *)&sin_store;
+			} else {
+				addr = (struct sockaddr *)&thlds->spt_address;
+			}
+		} else {
+			addr = (struct sockaddr *)&thlds->spt_address;
+		}
+#else
+		addr = (struct sockaddr *)&thlds->spt_address;
+#endif
+		if (stcb != NULL) {
+			net = sctp_findnet(stcb, addr);
+		} else {
+			/* We increment here since sctp_findassociation_ep_addr() wil
+			 * do a decrement if it finds the stcb as long as the locked
+			 * tcb (last argument) is NOT a TCB.. aka NULL.
+			 */
+			net = NULL;
+			SCTP_INP_INCR_REF(inp);
+			stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
+			if (stcb == NULL) {
+				SCTP_INP_DECR_REF(inp);
+			}
+		}
+		if ((stcb != NULL) && (net == NULL)) {
+#ifdef INET
+			if (addr->sa_family == AF_INET) {
+				struct sockaddr_in *sin;
+
+				sin = (struct sockaddr_in *)addr;
+				if (sin->sin_addr.s_addr != INADDR_ANY) {
+					error = EINVAL;
+					SCTP_TCB_UNLOCK(stcb);
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+					break;
+				}
+			} else
+#endif
+#ifdef INET6
+			if (addr->sa_family == AF_INET6) {
+				struct sockaddr_in6 *sin6;
+
+				sin6 = (struct sockaddr_in6 *)addr;
+				if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
+					error = EINVAL;
+					SCTP_TCB_UNLOCK(stcb);
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+					break;
+				}
+			} else
+#endif
+#if defined(__Userspace__)
+			if (addr->sa_family == AF_CONN) {
+				struct sockaddr_conn *sconn;
+
+				sconn = (struct sockaddr_conn *)addr;
+				if (sconn->sconn_addr != NULL) {
+					error = EINVAL;
+					SCTP_TCB_UNLOCK(stcb);
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+					break;
+				}
+			} else
+#endif
+			{
+				error = EAFNOSUPPORT;
+				SCTP_TCB_UNLOCK(stcb);
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+				break;
+			}
+		}
+
+		if (stcb != NULL) {
+			if (net != NULL) {
+				thlds->spt_pathmaxrxt = net->failure_threshold;
+				thlds->spt_pathpfthld = net->pf_threshold;
+				thlds->spt_pathcpthld = 0xffff;
+			} else {
+				thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
+				thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
+				thlds->spt_pathcpthld = 0xffff;
+			}
+			thlds->spt_assoc_id = sctp_get_associd(stcb);
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
+				/* Use endpoint defaults */
+				SCTP_INP_RLOCK(inp);
+				thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
+				thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
+				thlds->spt_pathcpthld = 0xffff;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_paddrthlds);
+		}
+		break;
+	}
+	case SCTP_REMOTE_UDP_ENCAPS_PORT:
+	{
+		struct sctp_udpencaps *encaps;
+		struct sctp_nets *net;
+		struct sockaddr *addr;
+#if defined(INET) && defined(INET6)
+		struct sockaddr_in sin_store;
+#endif
+
+		SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
+		SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
+
+#if defined(INET) && defined(INET6)
+		if (encaps->sue_address.ss_family == AF_INET6) {
+			struct sockaddr_in6 *sin6;
+
+			sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
+			if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
+				in6_sin6_2_sin(&sin_store, sin6);
+				addr = (struct sockaddr *)&sin_store;
+			} else {
+				addr = (struct sockaddr *)&encaps->sue_address;
+			}
+		} else {
+			addr = (struct sockaddr *)&encaps->sue_address;
+		}
+#else
+		addr = (struct sockaddr *)&encaps->sue_address;
+#endif
+		if (stcb) {
+			net = sctp_findnet(stcb, addr);
+		} else {
+			/* We increment here since sctp_findassociation_ep_addr() wil
+			 * do a decrement if it finds the stcb as long as the locked
+			 * tcb (last argument) is NOT a TCB.. aka NULL.
+			 */
+			net = NULL;
+			SCTP_INP_INCR_REF(inp);
+			stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
+			if (stcb == NULL) {
+				SCTP_INP_DECR_REF(inp);
+			}
+		}
+		if ((stcb != NULL) && (net == NULL)) {
+#ifdef INET
+			if (addr->sa_family == AF_INET) {
+				struct sockaddr_in *sin;
+
+				sin = (struct sockaddr_in *)addr;
+				if (sin->sin_addr.s_addr != INADDR_ANY) {
+					error = EINVAL;
+					SCTP_TCB_UNLOCK(stcb);
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+					break;
+				}
+			} else
+#endif
+#ifdef INET6
+			if (addr->sa_family == AF_INET6) {
+				struct sockaddr_in6 *sin6;
+
+				sin6 = (struct sockaddr_in6 *)addr;
+				if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
+					error = EINVAL;
+					SCTP_TCB_UNLOCK(stcb);
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+					break;
+				}
+			} else
+#endif
+#if defined(__Userspace__)
+			if (addr->sa_family == AF_CONN) {
+				struct sockaddr_conn *sconn;
+
+				sconn = (struct sockaddr_conn *)addr;
+				if (sconn->sconn_addr != NULL) {
+					error = EINVAL;
+					SCTP_TCB_UNLOCK(stcb);
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+					break;
+				}
+			} else
+#endif
+			{
+				error = EAFNOSUPPORT;
+				SCTP_TCB_UNLOCK(stcb);
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+				break;
+			}
+		}
+
+		if (stcb != NULL) {
+			if (net) {
+				encaps->sue_port = net->port;
+			} else {
+				encaps->sue_port = stcb->asoc.port;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				encaps->sue_port = inp->sctp_ep.port;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_udpencaps);
+		}
+		break;
+	}
+	case SCTP_ECN_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			av->assoc_value = stcb->asoc.ecn_supported;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->ecn_supported;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_PR_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			av->assoc_value = stcb->asoc.prsctp_supported;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->prsctp_supported;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_AUTH_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			av->assoc_value = stcb->asoc.auth_supported;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->auth_supported;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_ASCONF_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			av->assoc_value = stcb->asoc.asconf_supported;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->asconf_supported;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_RECONFIG_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			av->assoc_value = stcb->asoc.reconfig_supported;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->reconfig_supported;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_NRSACK_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			av->assoc_value = stcb->asoc.nrsack_supported;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->nrsack_supported;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_PKTDROP_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			av->assoc_value = stcb->asoc.pktdrop_supported;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->pktdrop_supported;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_ENABLE_STREAM_RESET:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = (uint32_t)inp->local_strreset_support;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	case SCTP_PR_STREAM_STATUS:
+	{
+		struct sctp_prstatus *sprstat;
+		uint16_t sid;
+		uint16_t policy;
+
+		SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
+		SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
+
+		sid = sprstat->sprstat_sid;
+		policy = sprstat->sprstat_policy;
+#if defined(SCTP_DETAILED_STR_STATS)
+		if ((stcb != NULL) &&
+		    (sid < stcb->asoc.streamoutcnt) &&
+		    (policy != SCTP_PR_SCTP_NONE) &&
+		    ((policy <= SCTP_PR_SCTP_MAX) ||
+		     (policy == SCTP_PR_SCTP_ALL))) {
+			if (policy == SCTP_PR_SCTP_ALL) {
+				sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
+				sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
+			} else {
+				sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
+				sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
+			}
+#else
+		if ((stcb != NULL) &&
+		    (sid < stcb->asoc.streamoutcnt) &&
+		    (policy == SCTP_PR_SCTP_ALL)) {
+			sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
+			sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
+#endif
+		} else {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+		}
+		if (stcb != NULL) {
+			SCTP_TCB_UNLOCK(stcb);
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_prstatus);
+		}
+		break;
+	}
+	case SCTP_PR_ASSOC_STATUS:
+	{
+		struct sctp_prstatus *sprstat;
+		uint16_t policy;
+
+		SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
+		SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
+
+		policy = sprstat->sprstat_policy;
+		if ((stcb != NULL) &&
+		    (policy != SCTP_PR_SCTP_NONE) &&
+		    ((policy <= SCTP_PR_SCTP_MAX) ||
+		     (policy == SCTP_PR_SCTP_ALL))) {
+			if (policy == SCTP_PR_SCTP_ALL) {
+				sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
+				sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
+			} else {
+				sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
+				sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
+			}
+		} else {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+		}
+		if (stcb != NULL) {
+			SCTP_TCB_UNLOCK(stcb);
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_prstatus);
+		}
+		break;
+	}
+	case SCTP_MAX_CWND:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			av->assoc_value = stcb->asoc.max_cwnd;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				av->assoc_value = inp->max_cwnd;
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		if (error == 0) {
+			*optsize = sizeof(struct sctp_assoc_value);
+		}
+		break;
+	}
+	default:
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
+		error = ENOPROTOOPT;
+		break;
+	} /* end switch (sopt->sopt_name) */
+	if (error) {
+		*optsize = 0;
+	}
+	return (error);
+}
+
+#if defined(__Userspace__)
+int
+#else
+static int
+#endif
+sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
+	    void *p)
+{
+	int error, set_opt;
+	uint32_t *mopt;
+	struct sctp_tcb *stcb = NULL;
+	struct sctp_inpcb *inp = NULL;
+	uint32_t vrf_id;
+
+	if (optval == NULL) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (EINVAL);
+	}
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (EINVAL);
+	}
+	vrf_id = inp->def_vrf_id;
+
+	error = 0;
+	switch (optname) {
+	case SCTP_NODELAY:
+	case SCTP_AUTOCLOSE:
+	case SCTP_AUTO_ASCONF:
+	case SCTP_EXPLICIT_EOR:
+	case SCTP_DISABLE_FRAGMENTS:
+	case SCTP_USE_EXT_RCVINFO:
+	case SCTP_I_WANT_MAPPED_V4_ADDR:
+		/* copy in the option value */
+		SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
+		set_opt = 0;
+		if (error)
+			break;
+		switch (optname) {
+		case SCTP_DISABLE_FRAGMENTS:
+			set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
+			break;
+		case SCTP_AUTO_ASCONF:
+			/*
+			 * NOTE: we don't really support this flag
+			 */
+			if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
+				/* only valid for bound all sockets */
+				if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
+				    (*mopt != 0)) {
+					/* forbidden by admin */
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
+					return (EPERM);
+				}
+				set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				return (EINVAL);
+			}
+			break;
+		case SCTP_EXPLICIT_EOR:
+			set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
+			break;
+		case SCTP_USE_EXT_RCVINFO:
+			set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
+			break;
+		case SCTP_I_WANT_MAPPED_V4_ADDR:
+			if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
+				set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				return (EINVAL);
+			}
+			break;
+		case SCTP_NODELAY:
+			set_opt = SCTP_PCB_FLAGS_NODELAY;
+			break;
+		case SCTP_AUTOCLOSE:
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				return (EINVAL);
+			}
+			set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
+			/*
+			 * The value is in ticks. Note this does not effect
+			 * old associations, only new ones.
+			 */
+			inp->sctp_ep.auto_close_time = sctp_secs_to_ticks(*mopt);
+			break;
+		}
+		SCTP_INP_WLOCK(inp);
+		if (*mopt != 0) {
+			sctp_feature_on(inp, set_opt);
+		} else {
+			sctp_feature_off(inp, set_opt);
+		}
+		SCTP_INP_WUNLOCK(inp);
+		break;
+	case SCTP_REUSE_PORT:
+	{
+		SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
+		if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
+			/* Can't set it after we are bound */
+			error = EINVAL;
+			break;
+		}
+		if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
+			/* Can't do this for a 1-m socket */
+			error = EINVAL;
+			break;
+		}
+		if (optval)
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
+		else
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
+		break;
+	}
+	case SCTP_PARTIAL_DELIVERY_POINT:
+	{
+		uint32_t *value;
+
+		SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
+		if (*value > SCTP_SB_LIMIT_RCV(so)) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		inp->partial_delivery_point = *value;
+		break;
+	}
+	case SCTP_FRAGMENT_INTERLEAVE:
+		/* not yet until we re-write sctp_recvmsg() */
+	{
+		uint32_t *level;
+
+		SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
+		if (*level == SCTP_FRAG_LEVEL_2) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
+		} else if (*level == SCTP_FRAG_LEVEL_1) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
+		} else if (*level == SCTP_FRAG_LEVEL_0) {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
+
+		} else {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+		}
+		break;
+	}
+	case SCTP_INTERLEAVING_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_WLOCK(inp);
+				if (av->assoc_value == 0) {
+					inp->idata_supported = 0;
+				} else {
+					if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
+					    (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
+						inp->idata_supported = 1;
+					} else {
+						/* Must have Frag interleave and stream interleave on */
+						SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+						error = EINVAL;
+					}
+				}
+				SCTP_INP_WUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_CMT_ON_OFF:
+		if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
+			struct sctp_assoc_value *av;
+
+			SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+			if (av->assoc_value > SCTP_CMT_MAX) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+				break;
+			}
+			SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+			if (stcb) {
+				stcb->asoc.sctp_cmt_on_off = av->assoc_value;
+				SCTP_TCB_UNLOCK(stcb);
+			} else {
+				if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+				    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+				    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+				     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
+				      (av->assoc_id == SCTP_ALL_ASSOC)))) {
+					SCTP_INP_WLOCK(inp);
+					inp->sctp_cmt_on_off = av->assoc_value;
+					SCTP_INP_WUNLOCK(inp);
+				}
+				if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+				    ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
+				     (av->assoc_id == SCTP_ALL_ASSOC))) {
+					SCTP_INP_RLOCK(inp);
+					LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+						SCTP_TCB_LOCK(stcb);
+						stcb->asoc.sctp_cmt_on_off = av->assoc_value;
+						SCTP_TCB_UNLOCK(stcb);
+					}
+					SCTP_INP_RUNLOCK(inp);
+				}
+			}
+		} else {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
+			error = ENOPROTOOPT;
+		}
+		break;
+	case SCTP_PLUGGABLE_CC:
+	{
+		struct sctp_assoc_value *av;
+		struct sctp_nets *net;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		if ((av->assoc_value != SCTP_CC_RFC2581) &&
+		    (av->assoc_value != SCTP_CC_HSTCP) &&
+		    (av->assoc_value != SCTP_CC_HTCP) &&
+		    (av->assoc_value != SCTP_CC_RTCC)) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+		if (stcb) {
+			stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
+			stcb->asoc.congestion_control_module = av->assoc_value;
+			if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
+				TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+					stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
+				}
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
+			      (av->assoc_id == SCTP_ALL_ASSOC)))) {
+				SCTP_INP_WLOCK(inp);
+				inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
+			     (av->assoc_id == SCTP_ALL_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
+					stcb->asoc.congestion_control_module = av->assoc_value;
+					if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
+						TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+							stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
+						}
+					}
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			}
+		}
+		break;
+	}
+	case SCTP_CC_OPTION:
+	{
+		struct sctp_cc_option *cc_opt;
+
+		SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
+		SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
+		if (stcb == NULL) {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
+						(*stcb->asoc.cc_functions.sctp_cwnd_socket_option)(stcb, 1, cc_opt);
+					}
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				error = EINVAL;
+			}
+		} else {
+			if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
+				error = ENOTSUP;
+			} else {
+				error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option)(stcb, 1,
+											   cc_opt);
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		}
+		break;
+	}
+	case SCTP_PLUGGABLE_SS:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		if ((av->assoc_value != SCTP_SS_DEFAULT) &&
+		    (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
+		    (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
+		    (av->assoc_value != SCTP_SS_PRIORITY) &&
+		    (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
+		    (av->assoc_value != SCTP_SS_FIRST_COME)) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+		if (stcb) {
+			stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
+			stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
+			stcb->asoc.stream_scheduling_module = av->assoc_value;
+			stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
+			      (av->assoc_id == SCTP_ALL_ASSOC)))) {
+				SCTP_INP_WLOCK(inp);
+				inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
+			     (av->assoc_id == SCTP_ALL_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
+					stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
+					stcb->asoc.stream_scheduling_module = av->assoc_value;
+					stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			}
+		}
+		break;
+	}
+	case SCTP_SS_VALUE:
+	{
+		struct sctp_stream_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+		if (stcb) {
+			if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
+			    (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
+			                                               av->stream_value) < 0)) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    (av->assoc_id == SCTP_CURRENT_ASSOC)) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					if (av->stream_id < stcb->asoc.streamoutcnt) {
+						stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
+						                                          &stcb->asoc,
+						                                          &stcb->asoc.strmout[av->stream_id],
+						                                          av->stream_value);
+					}
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			} else {
+				/* Can't set stream value without association */
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_CLR_STAT_LOG:
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
+		error = EOPNOTSUPP;
+		break;
+	case SCTP_CONTEXT:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			stcb->asoc.context = av->assoc_value;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
+			      (av->assoc_id == SCTP_ALL_ASSOC)))) {
+				SCTP_INP_WLOCK(inp);
+				inp->sctp_context = av->assoc_value;
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
+			     (av->assoc_id == SCTP_ALL_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					stcb->asoc.context = av->assoc_value;
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			}
+		}
+		break;
+	}
+	case SCTP_VRF_ID:
+	{
+		uint32_t *default_vrfid;
+#ifdef SCTP_MVRF
+		int i;
+#endif
+		SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
+		if (*default_vrfid > SCTP_MAX_VRF_ID) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+#ifdef SCTP_MVRF
+		for (i = 0; i < inp->num_vrfs; i++) {
+			/* The VRF must be in the VRF list */
+			if (*default_vrfid == inp->m_vrf_ids[i]) {
+				SCTP_INP_WLOCK(inp);
+				inp->def_vrf_id = *default_vrfid;
+				SCTP_INP_WUNLOCK(inp);
+				goto sctp_done;
+			}
+		}
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		error = EINVAL;
+#else
+		inp->def_vrf_id = *default_vrfid;
+#endif
+#ifdef SCTP_MVRF
+	sctp_done:
+#endif
+		break;
+	}
+	case SCTP_DEL_VRF_ID:
+	{
+#ifdef SCTP_MVRF
+		uint32_t *del_vrfid;
+		int i, fnd = 0;
+
+		SCTP_CHECK_AND_CAST(del_vrfid, optval, uint32_t, optsize);
+		if (*del_vrfid > SCTP_MAX_VRF_ID) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		if (inp->num_vrfs == 1) {
+			/* Can't delete last one */
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
+			/* Can't add more once you are bound */
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		SCTP_INP_WLOCK(inp);
+		for (i = 0; i < inp->num_vrfs; i++) {
+			if (*del_vrfid == inp->m_vrf_ids[i]) {
+				fnd = 1;
+				break;
+			}
+		}
+		if (!fnd) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		if (i != (inp->num_vrfs - 1)) {
+			/* Take bottom one and move to this slot */
+			inp->m_vrf_ids[i] = inp->m_vrf_ids[(inp->num_vrfs-1)];
+		}
+		if (*del_vrfid == inp->def_vrf_id) {
+			/* Take the first one as the new default */
+			inp->def_vrf_id = inp->m_vrf_ids[0];
+		}
+		/* Drop the number by one killing last one */
+		inp->num_vrfs--;
+#else
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
+		error = EOPNOTSUPP;
+#endif
+		break;
+	}
+	case SCTP_ADD_VRF_ID:
+	{
+#ifdef SCTP_MVRF
+		uint32_t *add_vrfid;
+		int i;
+
+		SCTP_CHECK_AND_CAST(add_vrfid, optval, uint32_t, optsize);
+		if (*add_vrfid > SCTP_MAX_VRF_ID) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
+			/* Can't add more once you are bound */
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		SCTP_INP_WLOCK(inp);
+		/* Verify its not already here */
+		for (i = 0; i < inp->num_vrfs; i++) {
+			if (*add_vrfid == inp->m_vrf_ids[i]) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
+				error = EALREADY;
+				SCTP_INP_WUNLOCK(inp);
+				break;
+			}
+		}
+		if ((inp->num_vrfs + 1) > inp->vrf_size) {
+			/* need to grow array */
+			uint32_t *tarray;
+			SCTP_MALLOC(tarray, uint32_t *,
+				    (sizeof(uint32_t) * (inp->vrf_size + SCTP_DEFAULT_VRF_SIZE)),
+				    SCTP_M_MVRF);
+			if (tarray == NULL) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
+				error = ENOMEM;
+				SCTP_INP_WUNLOCK(inp);
+				break;
+			}
+			memcpy(tarray, inp->m_vrf_ids, (sizeof(uint32_t) * inp->vrf_size));
+			SCTP_FREE(inp->m_vrf_ids, SCTP_M_MVRF);
+			inp->m_vrf_ids = tarray;
+			inp->vrf_size += SCTP_DEFAULT_VRF_SIZE;
+		}
+		inp->m_vrf_ids[inp->num_vrfs] = *add_vrfid;
+		inp->num_vrfs++;
+		SCTP_INP_WUNLOCK(inp);
+#else
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
+		error = EOPNOTSUPP;
+#endif
+		break;
+	}
+	case SCTP_DELAYED_SACK:
+	{
+		struct sctp_sack_info *sack;
+
+		SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
+		SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
+		if (sack->sack_delay) {
+			if (sack->sack_delay > SCTP_MAX_SACK_DELAY) {
+				error = EINVAL;
+				if (stcb != NULL) {
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				break;
+			}
+		}
+		if (stcb) {
+			if (sack->sack_delay) {
+				stcb->asoc.delayed_ack = sack->sack_delay;
+			}
+			if (sack->sack_freq) {
+				stcb->asoc.sack_freq = sack->sack_freq;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
+			      (sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
+				SCTP_INP_WLOCK(inp);
+				if (sack->sack_delay) {
+					inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = sctp_msecs_to_ticks(sack->sack_delay);
+				}
+				if (sack->sack_freq) {
+					inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
+				}
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
+			     (sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					if (sack->sack_delay) {
+						stcb->asoc.delayed_ack = sack->sack_delay;
+					}
+					if (sack->sack_freq) {
+						stcb->asoc.sack_freq = sack->sack_freq;
+					}
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			}
+		}
+		break;
+	}
+	case SCTP_AUTH_CHUNK:
+	{
+		struct sctp_authchunk *sauth;
+
+		SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
+
+		SCTP_INP_WLOCK(inp);
+		if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+		} else {
+			inp->auth_supported = 1;
+		}
+		SCTP_INP_WUNLOCK(inp);
+		break;
+	}
+	case SCTP_AUTH_KEY:
+	{
+		struct sctp_authkey *sca;
+		struct sctp_keyhead *shared_keys;
+		sctp_sharedkey_t *shared_key;
+		sctp_key_t *key = NULL;
+		size_t size;
+
+		SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
+		if (sca->sca_keylength == 0) {
+			size = optsize - sizeof(struct sctp_authkey);
+		} else {
+			if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
+				size = sca->sca_keylength;
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+				break;
+			}
+		}
+		SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
+
+		if (stcb) {
+			shared_keys = &stcb->asoc.shared_keys;
+			/* clear the cached keys for this key id */
+			sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
+			/*
+			 * create the new shared key and
+			 * insert/replace it
+			 */
+			if (size > 0) {
+				key = sctp_set_key(sca->sca_key, (uint32_t) size);
+				if (key == NULL) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
+					error = ENOMEM;
+					SCTP_TCB_UNLOCK(stcb);
+					break;
+				}
+			}
+			shared_key = sctp_alloc_sharedkey();
+			if (shared_key == NULL) {
+				sctp_free_key(key);
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
+				error = ENOMEM;
+				SCTP_TCB_UNLOCK(stcb);
+				break;
+			}
+			shared_key->key = key;
+			shared_key->keyid = sca->sca_keynumber;
+			error = sctp_insert_sharedkey(shared_keys, shared_key);
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
+			      (sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
+				SCTP_INP_WLOCK(inp);
+				shared_keys = &inp->sctp_ep.shared_keys;
+				/*
+				 * clear the cached keys on all assocs for
+				 * this key id
+				 */
+				sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
+				/*
+				 * create the new shared key and
+				 * insert/replace it
+				 */
+				if (size > 0) {
+					key = sctp_set_key(sca->sca_key, (uint32_t) size);
+					if (key == NULL) {
+						SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
+						error = ENOMEM;
+						SCTP_INP_WUNLOCK(inp);
+						break;
+					}
+				}
+				shared_key = sctp_alloc_sharedkey();
+				if (shared_key == NULL) {
+					sctp_free_key(key);
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
+					error = ENOMEM;
+					SCTP_INP_WUNLOCK(inp);
+					break;
+				}
+				shared_key->key = key;
+				shared_key->keyid = sca->sca_keynumber;
+				error = sctp_insert_sharedkey(shared_keys, shared_key);
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
+			     (sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					shared_keys = &stcb->asoc.shared_keys;
+					/* clear the cached keys for this key id */
+					sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
+					/*
+					 * create the new shared key and
+					 * insert/replace it
+					 */
+					if (size > 0) {
+						key = sctp_set_key(sca->sca_key, (uint32_t) size);
+						if (key == NULL) {
+							SCTP_TCB_UNLOCK(stcb);
+							continue;
+						}
+					}
+					shared_key = sctp_alloc_sharedkey();
+					if (shared_key == NULL) {
+						sctp_free_key(key);
+						SCTP_TCB_UNLOCK(stcb);
+						continue;
+					}
+					shared_key->key = key;
+					shared_key->keyid = sca->sca_keynumber;
+					error = sctp_insert_sharedkey(shared_keys, shared_key);
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			}
+		}
+		break;
+	}
+	case SCTP_HMAC_IDENT:
+	{
+		struct sctp_hmacalgo *shmac;
+		sctp_hmaclist_t *hmaclist;
+		uint16_t hmacid;
+		uint32_t i;
+
+		SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
+		if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
+		    (shmac->shmac_number_of_idents > 0xffff)) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+
+		hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
+		if (hmaclist == NULL) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
+			error = ENOMEM;
+			break;
+		}
+		for (i = 0; i < shmac->shmac_number_of_idents; i++) {
+			hmacid = shmac->shmac_idents[i];
+			if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
+				/* invalid HMACs were found */;
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+				sctp_free_hmaclist(hmaclist);
+				goto sctp_set_hmac_done;
+			}
+		}
+		for (i = 0; i < hmaclist->num_algo; i++) {
+			if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
+				/* already in list */
+				break;
+			}
+		}
+		if (i == hmaclist->num_algo) {
+			/* not found in list */
+			sctp_free_hmaclist(hmaclist);
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		/* set it on the endpoint */
+		SCTP_INP_WLOCK(inp);
+		if (inp->sctp_ep.local_hmacs)
+			sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
+		inp->sctp_ep.local_hmacs = hmaclist;
+		SCTP_INP_WUNLOCK(inp);
+	sctp_set_hmac_done:
+		break;
+	}
+	case SCTP_AUTH_ACTIVE_KEY:
+	{
+		struct sctp_authkeyid *scact;
+
+		SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
+		SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
+
+		/* set the active key on the right place */
+		if (stcb) {
+			/* set the active key on the assoc */
+			if (sctp_auth_setactivekey(stcb,
+						   scact->scact_keynumber)) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
+						    SCTP_FROM_SCTP_USRREQ,
+						    EINVAL);
+				error = EINVAL;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     ((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
+			      (scact->scact_assoc_id == SCTP_ALL_ASSOC)))) {
+				SCTP_INP_WLOCK(inp);
+				if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					error = EINVAL;
+				}
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
+			     (scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					sctp_auth_setactivekey(stcb, scact->scact_keynumber);
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			}
+		}
+		break;
+	}
+	case SCTP_AUTH_DELETE_KEY:
+	{
+		struct sctp_authkeyid *scdel;
+
+		SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
+		SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
+
+		/* delete the key from the right place */
+		if (stcb) {
+			if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
+			      (scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
+				SCTP_INP_WLOCK(inp);
+				if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					error = EINVAL;
+				}
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
+			     (scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			}
+		}
+		break;
+	}
+	case SCTP_AUTH_DEACTIVATE_KEY:
+	{
+		struct sctp_authkeyid *keyid;
+
+		SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
+		SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
+
+		/* deactivate the key from the right place */
+		if (stcb) {
+			if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
+			      (keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
+				SCTP_INP_WLOCK(inp);
+				if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					error = EINVAL;
+				}
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
+			     (keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			}
+		}
+		break;
+	}
+	case SCTP_ENABLE_STREAM_RESET:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
+		        SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+		if (stcb) {
+			stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
+			      (av->assoc_id == SCTP_ALL_ASSOC)))) {
+				SCTP_INP_WLOCK(inp);
+				inp->local_strreset_support = (uint8_t)av->assoc_value;
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
+			     (av->assoc_id == SCTP_ALL_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			}
+		}
+		break;
+	}
+	case SCTP_RESET_STREAMS:
+	{
+		struct sctp_reset_streams *strrst;
+		int i, send_out = 0;
+		int send_in = 0;
+
+		SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
+		SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
+		if (stcb == NULL) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
+			error = ENOENT;
+			break;
+		}
+		if (stcb->asoc.reconfig_supported == 0) {
+			/*
+			 * Peer does not support the chunk type.
+			 */
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
+			error = EOPNOTSUPP;
+			SCTP_TCB_UNLOCK(stcb);
+			break;
+		}
+		if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			SCTP_TCB_UNLOCK(stcb);
+			break;
+		}
+		if (sizeof(struct sctp_reset_streams) +
+		    strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
+			error = EINVAL;
+			SCTP_TCB_UNLOCK(stcb);
+			break;
+		}
+		if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
+			send_in = 1;
+			if (stcb->asoc.stream_reset_outstanding) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
+				error = EALREADY;
+				SCTP_TCB_UNLOCK(stcb);
+				break;
+			}
+		}
+		if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
+			send_out = 1;
+		}
+		if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
+			error = ENOMEM;
+			SCTP_TCB_UNLOCK(stcb);
+			break;
+		}
+		if ((send_in == 0) && (send_out == 0)) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			SCTP_TCB_UNLOCK(stcb);
+			break;
+		}
+		for (i = 0; i < strrst->srs_number_streams; i++) {
+			if ((send_in) &&
+			    (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+				break;
+			}
+			if ((send_out) &&
+			    (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+				break;
+			}
+		}
+		if (error) {
+			SCTP_TCB_UNLOCK(stcb);
+			break;
+		}
+		if (send_out) {
+			int cnt;
+			uint16_t strm;
+			if (strrst->srs_number_streams) {
+				for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
+					strm = strrst->srs_stream_list[i];
+					if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
+						stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
+						cnt++;
+					}
+				}
+			} else {
+				/* Its all */
+				for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
+					if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
+						stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
+						cnt++;
+					}
+				}
+			}
+		}
+		if (send_in) {
+			error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
+							strrst->srs_stream_list,
+							send_in, 0, 0, 0, 0, 0);
+		} else {
+			error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
+		}
+		if (error == 0) {
+			sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
+		} else {
+			 /*
+			  * For outgoing streams don't report any problems in
+			  * sending the request to the application.
+			  * XXX: Double check resetting incoming streams.
+			  */
+			error = 0;
+		}
+		SCTP_TCB_UNLOCK(stcb);
+		break;
+	}
+	case SCTP_ADD_STREAMS:
+	{
+		struct sctp_add_streams *stradd;
+		uint8_t addstream = 0;
+		uint16_t add_o_strmcnt = 0;
+		uint16_t add_i_strmcnt = 0;
+
+		SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
+		SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
+		if (stcb == NULL) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
+			error = ENOENT;
+			break;
+		}
+		if (stcb->asoc.reconfig_supported == 0) {
+			/*
+			 * Peer does not support the chunk type.
+			 */
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
+			error = EOPNOTSUPP;
+			SCTP_TCB_UNLOCK(stcb);
+			break;
+		}
+		if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			SCTP_TCB_UNLOCK(stcb);
+			break;
+		}
+		if (stcb->asoc.stream_reset_outstanding) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
+			error = EALREADY;
+			SCTP_TCB_UNLOCK(stcb);
+			break;
+		}
+		if ((stradd->sas_outstrms == 0) &&
+		    (stradd->sas_instrms == 0)) {
+			error = EINVAL;
+			goto skip_stuff;
+		}
+		if (stradd->sas_outstrms) {
+			addstream = 1;
+			/* We allocate here */
+			add_o_strmcnt = stradd->sas_outstrms;
+			if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
+				/* You can't have more than 64k */
+				error = EINVAL;
+				goto skip_stuff;
+			}
+		}
+		if (stradd->sas_instrms) {
+			int cnt;
+
+			addstream |= 2;
+			/* We allocate inside sctp_send_str_reset_req() */
+			add_i_strmcnt = stradd->sas_instrms;
+			cnt = add_i_strmcnt;
+			cnt += stcb->asoc.streamincnt;
+			if (cnt > 0x0000ffff) {
+				/* You can't have more than 64k */
+				error = EINVAL;
+				goto skip_stuff;
+			}
+			if (cnt > (int)stcb->asoc.max_inbound_streams) {
+				/* More than you are allowed */
+				error = EINVAL;
+				goto skip_stuff;
+			}
+		}
+		error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
+		sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
+	skip_stuff:
+		SCTP_TCB_UNLOCK(stcb);
+		break;
+	}
+	case SCTP_RESET_ASSOC:
+	{
+		int i;
+		uint32_t *value;
+
+		SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
+		SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) *value);
+		if (stcb == NULL) {
+		        SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
+			error = ENOENT;
+			break;
+		}
+		if (stcb->asoc.reconfig_supported == 0) {
+			/*
+			 * Peer does not support the chunk type.
+			 */
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
+			error = EOPNOTSUPP;
+			SCTP_TCB_UNLOCK(stcb);
+			break;
+		}
+		if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			SCTP_TCB_UNLOCK(stcb);
+			break;
+		}
+		if (stcb->asoc.stream_reset_outstanding) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
+			error = EALREADY;
+			SCTP_TCB_UNLOCK(stcb);
+			break;
+		}
+		/* Is there any data pending in the send or sent queues? */
+		if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
+		    !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
+		busy_out:
+			error = EBUSY;
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+			SCTP_TCB_UNLOCK(stcb);
+			break;
+		}
+		/* Do any streams have data queued? */
+		for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
+			if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
+				goto busy_out;
+			}
+		}
+		error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
+		sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
+		SCTP_TCB_UNLOCK(stcb);
+		break;
+	}
+	case SCTP_CONNECT_X:
+		if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
+		break;
+	case SCTP_CONNECT_X_DELAYED:
+		if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
+		break;
+	case SCTP_CONNECT_X_COMPLETE:
+	{
+		struct sockaddr *sa;
+
+		/* FIXME MT: check correct? */
+		SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
+
+		/* find tcb */
+		if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
+			SCTP_INP_RLOCK(inp);
+			stcb = LIST_FIRST(&inp->sctp_asoc_list);
+			if (stcb) {
+				SCTP_TCB_LOCK(stcb);
+			}
+			SCTP_INP_RUNLOCK(inp);
+		} else {
+			/* We increment here since sctp_findassociation_ep_addr() wil
+			 * do a decrement if it finds the stcb as long as the locked
+			 * tcb (last argument) is NOT a TCB.. aka NULL.
+			 */
+			SCTP_INP_INCR_REF(inp);
+			stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
+			if (stcb == NULL) {
+				SCTP_INP_DECR_REF(inp);
+			}
+		}
+
+		if (stcb == NULL) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
+			error = ENOENT;
+			break;
+		}
+		if (stcb->asoc.delayed_connection == 1) {
+			stcb->asoc.delayed_connection = 0;
+			(void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
+			sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
+					stcb->asoc.primary_destination,
+					SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
+			sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
+		} else {
+			/*
+			 * already expired or did not use delayed
+			 * connectx
+			 */
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
+			error = EALREADY;
+		}
+		SCTP_TCB_UNLOCK(stcb);
+		break;
+	}
+	case SCTP_MAX_BURST:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			stcb->asoc.max_burst = av->assoc_value;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
+			      (av->assoc_id == SCTP_ALL_ASSOC)))) {
+				SCTP_INP_WLOCK(inp);
+				inp->sctp_ep.max_burst = av->assoc_value;
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
+			     (av->assoc_id == SCTP_ALL_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					stcb->asoc.max_burst = av->assoc_value;
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			}
+		}
+		break;
+	}
+	case SCTP_MAXSEG:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			stcb->asoc.sctp_frag_point = av->assoc_value;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_WLOCK(inp);
+				inp->sctp_frag_point = av->assoc_value;
+				SCTP_INP_WUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_EVENTS:
+	{
+		struct sctp_event_subscribe *events;
+
+		SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
+
+		SCTP_INP_WLOCK(inp);
+		if (events->sctp_data_io_event) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
+		} else {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
+		}
+
+		if (events->sctp_association_event) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
+		} else {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
+		}
+
+		if (events->sctp_address_event) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
+		} else {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
+		}
+
+		if (events->sctp_send_failure_event) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
+		} else {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
+		}
+
+		if (events->sctp_peer_error_event) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
+		} else {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
+		}
+
+		if (events->sctp_shutdown_event) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
+		} else {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
+		}
+
+		if (events->sctp_partial_delivery_event) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
+		} else {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
+		}
+
+		if (events->sctp_adaptation_layer_event) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
+		} else {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
+		}
+
+		if (events->sctp_authentication_event) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
+		} else {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
+		}
+
+		if (events->sctp_sender_dry_event) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
+		} else {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
+		}
+
+		if (events->sctp_stream_reset_event) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
+		} else {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
+		}
+
+		LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+			SCTP_TCB_LOCK(stcb);
+			if (events->sctp_association_event) {
+				sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
+			} else {
+				sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
+			}
+			if (events->sctp_address_event) {
+				sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
+			} else {
+				sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
+			}
+			if (events->sctp_send_failure_event) {
+				sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
+			} else {
+				sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
+			}
+			if (events->sctp_peer_error_event) {
+				sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
+			} else {
+				sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
+			}
+			if (events->sctp_shutdown_event) {
+				sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
+			} else {
+				sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
+			}
+			if (events->sctp_partial_delivery_event) {
+				sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
+			} else {
+				sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
+			}
+			if (events->sctp_adaptation_layer_event) {
+				sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
+			} else {
+				sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
+			}
+			if (events->sctp_authentication_event) {
+				sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
+			} else {
+				sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
+			}
+			if (events->sctp_sender_dry_event) {
+				sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
+			} else {
+				sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
+			}
+			if (events->sctp_stream_reset_event) {
+				sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
+			} else {
+				sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		}
+		/* Send up the sender dry event only for 1-to-1 style sockets. */
+		if (events->sctp_sender_dry_event) {
+			if (((inp->sctp_flags & (SCTP_PCB_FLAGS_TCPTYPE | SCTP_PCB_FLAGS_IN_TCPPOOL)) != 0) &&
+			    !SCTP_IS_LISTENING(inp)) {
+				stcb = LIST_FIRST(&inp->sctp_asoc_list);
+				if (stcb != NULL) {
+					SCTP_TCB_LOCK(stcb);
+					if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
+					    TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
+					    (stcb->asoc.stream_queue_cnt == 0)) {
+						sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
+					}
+					SCTP_TCB_UNLOCK(stcb);
+				}
+			}
+		}
+		SCTP_INP_WUNLOCK(inp);
+		break;
+	}
+	case SCTP_ADAPTATION_LAYER:
+	{
+		struct sctp_setadaptation *adap_bits;
+
+		SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
+		SCTP_INP_WLOCK(inp);
+		inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
+		inp->sctp_ep.adaptation_layer_indicator_provided = 1;
+		SCTP_INP_WUNLOCK(inp);
+		break;
+	}
+#ifdef SCTP_DEBUG
+	case SCTP_SET_INITIAL_DBG_SEQ:
+	{
+		uint32_t *vvv;
+
+		SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
+		SCTP_INP_WLOCK(inp);
+		inp->sctp_ep.initial_sequence_debug = *vvv;
+		SCTP_INP_WUNLOCK(inp);
+		break;
+	}
+#endif
+	case SCTP_DEFAULT_SEND_PARAM:
+	{
+		struct sctp_sndrcvinfo *s_info;
+
+		SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
+		SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
+
+		if (stcb) {
+			if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
+				memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
+			      (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
+				SCTP_INP_WLOCK(inp);
+				memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
+			     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
+						memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
+					}
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			}
+		}
+		break;
+	}
+	case SCTP_PEER_ADDR_PARAMS:
+	{
+		struct sctp_paddrparams *paddrp;
+		struct sctp_nets *net;
+		struct sockaddr *addr;
+#if defined(INET) && defined(INET6)
+		struct sockaddr_in sin_store;
+#endif
+
+		SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
+		SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
+
+#if defined(INET) && defined(INET6)
+		if (paddrp->spp_address.ss_family == AF_INET6) {
+			struct sockaddr_in6 *sin6;
+
+			sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
+			if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
+				in6_sin6_2_sin(&sin_store, sin6);
+				addr = (struct sockaddr *)&sin_store;
+			} else {
+				addr = (struct sockaddr *)&paddrp->spp_address;
+			}
+		} else {
+			addr = (struct sockaddr *)&paddrp->spp_address;
+		}
+#else
+		addr = (struct sockaddr *)&paddrp->spp_address;
+#endif
+		if (stcb != NULL) {
+			net = sctp_findnet(stcb, addr);
+		} else {
+			/* We increment here since sctp_findassociation_ep_addr() wil
+			 * do a decrement if it finds the stcb as long as the locked
+			 * tcb (last argument) is NOT a TCB.. aka NULL.
+			 */
+			net = NULL;
+			SCTP_INP_INCR_REF(inp);
+			stcb = sctp_findassociation_ep_addr(&inp, addr,
+			                                    &net, NULL, NULL);
+			if (stcb == NULL) {
+				SCTP_INP_DECR_REF(inp);
+			}
+		}
+		if ((stcb != NULL) && (net == NULL)) {
+#ifdef INET
+			if (addr->sa_family == AF_INET) {
+				struct sockaddr_in *sin;
+
+				sin = (struct sockaddr_in *)addr;
+				if (sin->sin_addr.s_addr != INADDR_ANY) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					SCTP_TCB_UNLOCK(stcb);
+					error = EINVAL;
+					break;
+				}
+			} else
+#endif
+#ifdef INET6
+			if (addr->sa_family == AF_INET6) {
+				struct sockaddr_in6 *sin6;
+
+				sin6 = (struct sockaddr_in6 *)addr;
+				if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					SCTP_TCB_UNLOCK(stcb);
+					error = EINVAL;
+					break;
+				}
+			} else
+#endif
+#if defined(__Userspace__)
+			if (addr->sa_family == AF_CONN) {
+				struct sockaddr_conn *sconn;
+
+				sconn = (struct sockaddr_conn *)addr;
+				if (sconn->sconn_addr != NULL) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					SCTP_TCB_UNLOCK(stcb);
+					error = EINVAL;
+					break;
+				}
+			} else
+#endif
+			{
+				error = EAFNOSUPPORT;
+				SCTP_TCB_UNLOCK(stcb);
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+				break;
+			}
+		}
+		/* sanity checks */
+		if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
+			if (stcb)
+				SCTP_TCB_UNLOCK(stcb);
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			return (EINVAL);
+		}
+
+		if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
+			if (stcb)
+				SCTP_TCB_UNLOCK(stcb);
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			return (EINVAL);
+		}
+		if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
+		    (paddrp->spp_pathmtu > 0) &&
+		    ((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
+		     (paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
+			if (stcb)
+				SCTP_TCB_UNLOCK(stcb);
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			return (EINVAL);
+		}
+
+		if (stcb != NULL) {
+			/************************TCB SPECIFIC SET ******************/
+			if (net != NULL) {
+				/************************NET SPECIFIC SET ******************/
+				if (paddrp->spp_flags & SPP_HB_DISABLE) {
+					if (((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0) &&
+					    ((net->dest_state & SCTP_ADDR_NOHB) == 0)) {
+						sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
+						                SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
+					}
+					net->dest_state |= SCTP_ADDR_NOHB;
+				}
+				if (paddrp->spp_flags & SPP_HB_ENABLE) {
+					if (paddrp->spp_hbinterval) {
+						net->heart_beat_delay = paddrp->spp_hbinterval;
+					} else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
+						net->heart_beat_delay = 0;
+					}
+					sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
+					                SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
+					sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
+					net->dest_state &= ~SCTP_ADDR_NOHB;
+				}
+				if (paddrp->spp_flags & SPP_HB_DEMAND) {
+					if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
+						sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
+						sctp_chunk_output(inp, stcb,  SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
+						sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
+					}
+				}
+				if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
+					if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
+						sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
+						                SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
+					}
+					net->dest_state |= SCTP_ADDR_NO_PMTUD;
+					if (paddrp->spp_pathmtu > 0) {
+						net->mtu = paddrp->spp_pathmtu;
+						switch (net->ro._l_addr.sa.sa_family) {
+#ifdef INET
+						case AF_INET:
+							net->mtu += SCTP_MIN_V4_OVERHEAD;
+							break;
+#endif
+#ifdef INET6
+						case AF_INET6:
+							net->mtu += SCTP_MIN_OVERHEAD;
+							break;
+#endif
+#if defined(__Userspace__)
+						case AF_CONN:
+							net->mtu += sizeof(struct sctphdr);
+							break;
+#endif
+						default:
+							break;
+						}
+						if (net->mtu < stcb->asoc.smallest_mtu) {
+							sctp_pathmtu_adjustment(stcb, net->mtu, true);
+						}
+					}
+				}
+				if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
+					if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
+						sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
+					}
+					net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
+				}
+				if (paddrp->spp_pathmaxrxt > 0) {
+					if (net->dest_state & SCTP_ADDR_PF) {
+						if (net->error_count > paddrp->spp_pathmaxrxt) {
+							net->dest_state &= ~SCTP_ADDR_PF;
+						}
+					} else {
+						if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
+						    (net->error_count > net->pf_threshold)) {
+							net->dest_state |= SCTP_ADDR_PF;
+							sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
+							sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
+							                stcb->sctp_ep, stcb, net,
+							                SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
+							sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
+						}
+					}
+					if (net->dest_state & SCTP_ADDR_REACHABLE) {
+						if (net->error_count > paddrp->spp_pathmaxrxt) {
+							net->dest_state &= ~SCTP_ADDR_REACHABLE;
+							sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
+						}
+					} else {
+						if (net->error_count <= paddrp->spp_pathmaxrxt) {
+							net->dest_state |= SCTP_ADDR_REACHABLE;
+							sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
+						}
+					}
+					net->failure_threshold = paddrp->spp_pathmaxrxt;
+				}
+				if (paddrp->spp_flags & SPP_DSCP) {
+					net->dscp = paddrp->spp_dscp & 0xfc;
+					net->dscp |= 0x01;
+				}
+#ifdef INET6
+				if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
+					if (net->ro._l_addr.sa.sa_family == AF_INET6) {
+						net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
+						net->flowlabel |= 0x80000000;
+					}
+				}
+#endif
+			} else {
+				/************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
+				if (paddrp->spp_pathmaxrxt > 0) {
+					stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
+					TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+						if (net->dest_state & SCTP_ADDR_PF) {
+							if (net->error_count > paddrp->spp_pathmaxrxt) {
+								net->dest_state &= ~SCTP_ADDR_PF;
+							}
+						} else {
+							if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
+							    (net->error_count > net->pf_threshold)) {
+								net->dest_state |= SCTP_ADDR_PF;
+								sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
+								sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
+								                stcb->sctp_ep, stcb, net,
+								                SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
+								sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
+							}
+						}
+						if (net->dest_state & SCTP_ADDR_REACHABLE) {
+							if (net->error_count > paddrp->spp_pathmaxrxt) {
+								net->dest_state &= ~SCTP_ADDR_REACHABLE;
+								sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
+							}
+						} else {
+							if (net->error_count <= paddrp->spp_pathmaxrxt) {
+								net->dest_state |= SCTP_ADDR_REACHABLE;
+								sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
+							}
+						}
+						net->failure_threshold = paddrp->spp_pathmaxrxt;
+					}
+				}
+				if (paddrp->spp_flags & SPP_HB_ENABLE) {
+					if (paddrp->spp_hbinterval != 0) {
+						stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
+					} else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
+						stcb->asoc.heart_beat_delay = 0;
+					}
+					/* Turn back on the timer */
+					TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+						if (paddrp->spp_hbinterval != 0) {
+							net->heart_beat_delay = paddrp->spp_hbinterval;
+						} else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
+							net->heart_beat_delay = 0;
+						}
+						if (net->dest_state & SCTP_ADDR_NOHB) {
+							net->dest_state &= ~SCTP_ADDR_NOHB;
+						}
+						sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
+								SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
+						sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
+					}
+					sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
+				}
+				if (paddrp->spp_flags & SPP_HB_DISABLE) {
+					TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+						if ((net->dest_state & SCTP_ADDR_NOHB) == 0) {
+							net->dest_state |= SCTP_ADDR_NOHB;
+							if ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0) {
+								sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
+								                inp, stcb, net,
+								                SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
+							}
+						}
+					}
+					sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
+				}
+				if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
+					TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+						if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
+							sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
+							                SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
+						}
+						net->dest_state |= SCTP_ADDR_NO_PMTUD;
+						if (paddrp->spp_pathmtu > 0) {
+							net->mtu = paddrp->spp_pathmtu;
+							switch (net->ro._l_addr.sa.sa_family) {
+#ifdef INET
+							case AF_INET:
+								net->mtu += SCTP_MIN_V4_OVERHEAD;
+								break;
+#endif
+#ifdef INET6
+							case AF_INET6:
+								net->mtu += SCTP_MIN_OVERHEAD;
+								break;
+#endif
+#if defined(__Userspace__)
+							case AF_CONN:
+								net->mtu += sizeof(struct sctphdr);
+								break;
+#endif
+							default:
+								break;
+							}
+							if (net->mtu < stcb->asoc.smallest_mtu) {
+								sctp_pathmtu_adjustment(stcb, net->mtu, true);
+							}
+						}
+					}
+					if (paddrp->spp_pathmtu > 0) {
+						stcb->asoc.default_mtu = paddrp->spp_pathmtu;
+					}
+					sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
+				}
+				if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
+					TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+						if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
+							sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
+						}
+						net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
+					}
+					stcb->asoc.default_mtu = 0;
+					sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
+				}
+				if (paddrp->spp_flags & SPP_DSCP) {
+					TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+						net->dscp = paddrp->spp_dscp & 0xfc;
+						net->dscp |= 0x01;
+					}
+					stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
+					stcb->asoc.default_dscp |= 0x01;
+				}
+#ifdef INET6
+				if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
+					TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+						if (net->ro._l_addr.sa.sa_family == AF_INET6) {
+							net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
+							net->flowlabel |= 0x80000000;
+						}
+					}
+					stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
+					stcb->asoc.default_flowlabel |= 0x80000000;
+				}
+#endif
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			/************************NO TCB, SET TO default stuff ******************/
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_WLOCK(inp);
+				/*
+				 * For the TOS/FLOWLABEL stuff you set it
+				 * with the options on the socket
+				 */
+				if (paddrp->spp_pathmaxrxt > 0) {
+					inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
+				}
+
+				if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
+					inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
+				else if (paddrp->spp_hbinterval != 0) {
+					if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
+						paddrp->spp_hbinterval= SCTP_MAX_HB_INTERVAL;
+					inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
+				}
+
+				if (paddrp->spp_flags & SPP_HB_ENABLE) {
+					if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
+						inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
+					} else if (paddrp->spp_hbinterval) {
+						inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
+					}
+					sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
+				} else if (paddrp->spp_flags & SPP_HB_DISABLE) {
+					sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
+				}
+				if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
+					inp->sctp_ep.default_mtu = 0;
+					sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
+				} else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
+					if (paddrp->spp_pathmtu > 0) {
+						inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
+					}
+					sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
+				}
+				if (paddrp->spp_flags & SPP_DSCP) {
+					inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
+					inp->sctp_ep.default_dscp |= 0x01;
+				}
+#ifdef INET6
+				if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
+					if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
+						inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
+						inp->sctp_ep.default_flowlabel |= 0x80000000;
+					}
+				}
+#endif
+				SCTP_INP_WUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_RTOINFO:
+	{
+		struct sctp_rtoinfo *srto;
+		uint32_t new_init, new_min, new_max;
+
+		SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
+		SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
+
+		if (stcb) {
+			if (srto->srto_initial)
+				new_init = srto->srto_initial;
+			else
+				new_init = stcb->asoc.initial_rto;
+			if (srto->srto_max)
+				new_max = srto->srto_max;
+			else
+				new_max = stcb->asoc.maxrto;
+			if (srto->srto_min)
+				new_min = srto->srto_min;
+			else
+				new_min = stcb->asoc.minrto;
+			if ((new_min <= new_init) && (new_init <= new_max)) {
+				stcb->asoc.initial_rto = new_init;
+				stcb->asoc.maxrto = new_max;
+				stcb->asoc.minrto = new_min;
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_WLOCK(inp);
+				if (srto->srto_initial)
+					new_init = srto->srto_initial;
+				else
+					new_init = inp->sctp_ep.initial_rto;
+				if (srto->srto_max)
+					new_max = srto->srto_max;
+				else
+					new_max = inp->sctp_ep.sctp_maxrto;
+				if (srto->srto_min)
+					new_min = srto->srto_min;
+				else
+					new_min = inp->sctp_ep.sctp_minrto;
+				if ((new_min <= new_init) && (new_init <= new_max)) {
+					inp->sctp_ep.initial_rto = new_init;
+					inp->sctp_ep.sctp_maxrto = new_max;
+					inp->sctp_ep.sctp_minrto = new_min;
+				} else {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					error = EINVAL;
+				}
+				SCTP_INP_WUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_ASSOCINFO:
+	{
+		struct sctp_assocparams *sasoc;
+
+		SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
+		SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
+		if (sasoc->sasoc_cookie_life > 0) {
+			/* boundary check the cookie life */
+			if (sasoc->sasoc_cookie_life < SCTP_MIN_COOKIE_LIFE) {
+				sasoc->sasoc_cookie_life = SCTP_MIN_COOKIE_LIFE;
+			}
+			if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
+				sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
+			}
+		}
+		if (stcb) {
+			if (sasoc->sasoc_asocmaxrxt > 0) {
+				stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
+			}
+			if (sasoc->sasoc_cookie_life > 0) {
+				stcb->asoc.cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_WLOCK(inp);
+				if (sasoc->sasoc_asocmaxrxt > 0) {
+					inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
+				}
+				if (sasoc->sasoc_cookie_life > 0) {
+					inp->sctp_ep.def_cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
+				}
+				SCTP_INP_WUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_INITMSG:
+	{
+		struct sctp_initmsg *sinit;
+
+		SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
+		SCTP_INP_WLOCK(inp);
+		if (sinit->sinit_num_ostreams)
+			inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
+
+		if (sinit->sinit_max_instreams)
+			inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
+
+		if (sinit->sinit_max_attempts)
+			inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
+
+		if (sinit->sinit_max_init_timeo)
+			inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
+		SCTP_INP_WUNLOCK(inp);
+		break;
+	}
+	case SCTP_PRIMARY_ADDR:
+	{
+		struct sctp_setprim *spa;
+		struct sctp_nets *net;
+		struct sockaddr *addr;
+#if defined(INET) && defined(INET6)
+		struct sockaddr_in sin_store;
+#endif
+
+		SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
+		SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
+
+#if defined(INET) && defined(INET6)
+		if (spa->ssp_addr.ss_family == AF_INET6) {
+			struct sockaddr_in6 *sin6;
+
+			sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
+			if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
+				in6_sin6_2_sin(&sin_store, sin6);
+				addr = (struct sockaddr *)&sin_store;
+			} else {
+				addr = (struct sockaddr *)&spa->ssp_addr;
+			}
+		} else {
+			addr = (struct sockaddr *)&spa->ssp_addr;
+		}
+#else
+		addr = (struct sockaddr *)&spa->ssp_addr;
+#endif
+		if (stcb != NULL) {
+			net = sctp_findnet(stcb, addr);
+		} else {
+			/* We increment here since sctp_findassociation_ep_addr() wil
+			 * do a decrement if it finds the stcb as long as the locked
+			 * tcb (last argument) is NOT a TCB.. aka NULL.
+			 */
+			net = NULL;
+			SCTP_INP_INCR_REF(inp);
+			stcb = sctp_findassociation_ep_addr(&inp, addr,
+			                                    &net, NULL, NULL);
+			if (stcb == NULL) {
+				SCTP_INP_DECR_REF(inp);
+			}
+		}
+
+		if ((stcb != NULL) && (net != NULL)) {
+			if (net != stcb->asoc.primary_destination) {
+				if ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0) {
+					/* Ok we need to set it */
+					if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
+						if ((stcb->asoc.alternate) &&
+						    ((net->dest_state & SCTP_ADDR_PF) == 0) &&
+						    (net->dest_state & SCTP_ADDR_REACHABLE)) {
+							sctp_free_remote_addr(stcb->asoc.alternate);
+							stcb->asoc.alternate = NULL;
+						}
+					} else {
+						SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+						error = EINVAL;
+					}
+				} else {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					error = EINVAL;
+				}
+			}
+		} else {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+		}
+		if (stcb != NULL) {
+			SCTP_TCB_UNLOCK(stcb);
+		}
+		break;
+	}
+	case SCTP_SET_DYNAMIC_PRIMARY:
+	{
+		union sctp_sockstore *ss;
+#ifdef SCTP_MVRF
+		int i, fnd = 0;
+#endif
+#if !defined(_WIN32) && !defined(__Userspace__)
+#if defined(__APPLE__)
+		struct proc *proc;
+#endif
+#if defined(__FreeBSD__)
+		error = priv_check(curthread,
+				   PRIV_NETINET_RESERVEDPORT);
+#elif defined(__APPLE__)
+		proc = (struct proc *)p;
+		if (p) {
+			error = suser(proc->p_ucred, &proc->p_acflag);
+		} else {
+			break;
+		}
+#else
+		error = suser(p, 0);
+#endif
+		if (error)
+			break;
+#endif
+
+		SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
+		/* SUPER USER CHECK? */
+#ifdef SCTP_MVRF
+		for (i = 0; i < inp->num_vrfs; i++) {
+			if (vrf_id == inp->m_vrf_ids[i]) {
+				fnd = 1;
+				break;
+			}
+		}
+		if (!fnd) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+#endif
+		error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
+		break;
+	}
+	case SCTP_SET_PEER_PRIMARY_ADDR:
+	{
+		struct sctp_setpeerprim *sspp;
+		struct sockaddr *addr;
+#if defined(INET) && defined(INET6)
+		struct sockaddr_in sin_store;
+#endif
+
+		SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
+		SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
+		if (stcb != NULL) {
+			struct sctp_ifa *ifa;
+
+#if defined(INET) && defined(INET6)
+			if (sspp->sspp_addr.ss_family == AF_INET6) {
+				struct sockaddr_in6 *sin6;
+
+				sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
+				if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
+					in6_sin6_2_sin(&sin_store, sin6);
+					addr = (struct sockaddr *)&sin_store;
+				} else {
+					addr = (struct sockaddr *)&sspp->sspp_addr;
+				}
+			} else {
+				addr = (struct sockaddr *)&sspp->sspp_addr;
+			}
+#else
+			addr = (struct sockaddr *)&sspp->sspp_addr;
+#endif
+			ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
+			if (ifa == NULL) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+				goto out_of_it;
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
+				/* Must validate the ifa found is in our ep */
+				struct sctp_laddr *laddr;
+				int found = 0;
+
+				LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
+					if (laddr->ifa == NULL) {
+						SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
+							__func__);
+						continue;
+					}
+					if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
+					    (!sctp_is_addr_pending(stcb, laddr->ifa))) {
+						continue;
+					}
+					if (laddr->ifa == ifa) {
+						found = 1;
+						break;
+					}
+				}
+				if (!found) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					error = EINVAL;
+					goto out_of_it;
+				}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+			} else {
+				switch (addr->sa_family) {
+#ifdef INET
+				case AF_INET:
+				{
+					struct sockaddr_in *sin;
+
+					sin = (struct sockaddr_in *)addr;
+					if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
+					                     &sin->sin_addr) != 0) {
+						SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+						error = EINVAL;
+						goto out_of_it;
+					}
+					break;
+				}
+#endif
+#ifdef INET6
+				case AF_INET6:
+				{
+					struct sockaddr_in6 *sin6;
+
+					sin6 = (struct sockaddr_in6 *)addr;
+					if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
+					                     &sin6->sin6_addr) != 0) {
+						SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+						error = EINVAL;
+						goto out_of_it;
+					}
+					break;
+				}
+#endif
+				default:
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					error = EINVAL;
+					goto out_of_it;
+				}
+#endif
+			}
+			if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+			sctp_chunk_output(inp, stcb,  SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
+		out_of_it:
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+		}
+		break;
+	}
+	case SCTP_BINDX_ADD_ADDR:
+	{
+		struct sockaddr *sa;
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		struct thread *td;
+
+		td = (struct thread *)p;
+#endif
+		SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
+#ifdef INET
+		if (sa->sa_family == AF_INET) {
+			if (optsize < sizeof(struct sockaddr_in)) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+				break;
+			}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+			if (td != NULL &&
+			    (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
+				SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
+				break;
+			}
+#endif
+		} else
+#endif
+#ifdef INET6
+		if (sa->sa_family == AF_INET6) {
+			if (optsize < sizeof(struct sockaddr_in6)) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+				break;
+			}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+			if (td != NULL &&
+			    (error = prison_local_ip6(td->td_ucred,
+			                              &(((struct sockaddr_in6 *)sa)->sin6_addr),
+			                              (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
+				SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
+				break;
+			}
+#endif
+		} else
+#endif
+		{
+			error = EAFNOSUPPORT;
+			break;
+		}
+		sctp_bindx_add_address(so, inp, sa, vrf_id, &error, p);
+		break;
+	}
+	case SCTP_BINDX_REM_ADDR:
+	{
+		struct sockaddr *sa;
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		struct thread *td;
+		td = (struct thread *)p;
+
+#endif
+		SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
+#ifdef INET
+		if (sa->sa_family == AF_INET) {
+			if (optsize < sizeof(struct sockaddr_in)) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+				break;
+			}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+			if (td != NULL &&
+			    (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
+				SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
+				break;
+			}
+#endif
+		} else
+#endif
+#ifdef INET6
+		if (sa->sa_family == AF_INET6) {
+			if (optsize < sizeof(struct sockaddr_in6)) {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+				break;
+			}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+			if (td != NULL &&
+			    (error = prison_local_ip6(td->td_ucred,
+			                              &(((struct sockaddr_in6 *)sa)->sin6_addr),
+			                              (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
+				SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
+				break;
+			}
+#endif
+		} else
+#endif
+		{
+			error = EAFNOSUPPORT;
+			break;
+		}
+		sctp_bindx_delete_address(inp, sa, vrf_id, &error);
+		break;
+	}
+#if defined(__APPLE__) && !defined(__Userspace__)
+	case SCTP_LISTEN_FIX:
+		/* only applies to one-to-many sockets */
+		if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
+			/* make sure the ACCEPTCONN flag is OFF */
+			so->so_options &= ~SO_ACCEPTCONN;
+		} else {
+			/* otherwise, not allowed */
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+		}
+		break;
+#endif
+	case SCTP_EVENT:
+	{
+		struct sctp_event *event;
+		uint32_t event_type;
+
+		SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
+		SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
+		switch (event->se_type) {
+		case SCTP_ASSOC_CHANGE:
+			event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
+			break;
+		case SCTP_PEER_ADDR_CHANGE:
+			event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
+			break;
+		case SCTP_REMOTE_ERROR:
+			event_type = SCTP_PCB_FLAGS_RECVPEERERR;
+			break;
+		case SCTP_SEND_FAILED:
+			event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
+			break;
+		case SCTP_SHUTDOWN_EVENT:
+			event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
+			break;
+		case SCTP_ADAPTATION_INDICATION:
+			event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
+			break;
+		case SCTP_PARTIAL_DELIVERY_EVENT:
+			event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
+			break;
+		case SCTP_AUTHENTICATION_EVENT:
+			event_type = SCTP_PCB_FLAGS_AUTHEVNT;
+			break;
+		case SCTP_STREAM_RESET_EVENT:
+			event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
+			break;
+		case SCTP_SENDER_DRY_EVENT:
+			event_type = SCTP_PCB_FLAGS_DRYEVNT;
+			break;
+		case SCTP_NOTIFICATIONS_STOPPED_EVENT:
+			event_type = 0;
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
+			error = ENOTSUP;
+			break;
+		case SCTP_ASSOC_RESET_EVENT:
+			event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
+			break;
+		case SCTP_STREAM_CHANGE_EVENT:
+			event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
+			break;
+		case SCTP_SEND_FAILED_EVENT:
+			event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
+			break;
+		default:
+			event_type = 0;
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		if (event_type > 0) {
+			if (stcb) {
+				if (event->se_on) {
+					sctp_stcb_feature_on(inp, stcb, event_type);
+					if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
+						if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
+						    TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
+						    (stcb->asoc.stream_queue_cnt == 0)) {
+							sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb,  0, NULL, SCTP_SO_LOCKED);
+						}
+					}
+				} else {
+					sctp_stcb_feature_off(inp, stcb, event_type);
+				}
+				SCTP_TCB_UNLOCK(stcb);
+			} else {
+				/*
+				 * We don't want to send up a storm of events,
+				 * so return an error for sender dry events
+				 */
+				if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
+				    (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+				    ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
+				     (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
+					error = ENOTSUP;
+					break;
+				}
+				if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+				    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+				    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+				     ((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
+				      (event->se_assoc_id == SCTP_ALL_ASSOC)))) {
+					SCTP_INP_WLOCK(inp);
+					if (event->se_on) {
+						sctp_feature_on(inp, event_type);
+					} else {
+						sctp_feature_off(inp, event_type);
+					}
+					SCTP_INP_WUNLOCK(inp);
+				}
+				if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+				    ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
+				     (event->se_assoc_id == SCTP_ALL_ASSOC))) {
+					SCTP_INP_RLOCK(inp);
+					LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+						SCTP_TCB_LOCK(stcb);
+						if (event->se_on) {
+							sctp_stcb_feature_on(inp, stcb, event_type);
+						} else {
+							sctp_stcb_feature_off(inp, stcb, event_type);
+						}
+						SCTP_TCB_UNLOCK(stcb);
+					}
+					SCTP_INP_RUNLOCK(inp);
+				}
+			}
+		} else {
+			if (stcb) {
+				SCTP_TCB_UNLOCK(stcb);
+			}
+		}
+		break;
+	}
+	case SCTP_RECVRCVINFO:
+	{
+		int *onoff;
+
+		SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
+		SCTP_INP_WLOCK(inp);
+		if (*onoff != 0) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
+		} else {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
+		}
+		SCTP_INP_WUNLOCK(inp);
+		break;
+	}
+	case SCTP_RECVNXTINFO:
+	{
+		int *onoff;
+
+		SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
+		SCTP_INP_WLOCK(inp);
+		if (*onoff != 0) {
+			sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
+		} else {
+			sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
+		}
+		SCTP_INP_WUNLOCK(inp);
+		break;
+	}
+	case SCTP_DEFAULT_SNDINFO:
+	{
+		struct sctp_sndinfo *info;
+		uint16_t policy;
+
+		SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
+		SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
+
+		if (stcb) {
+			if (info->snd_sid < stcb->asoc.streamoutcnt) {
+				stcb->asoc.def_send.sinfo_stream = info->snd_sid;
+				policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
+				stcb->asoc.def_send.sinfo_flags = info->snd_flags;
+				stcb->asoc.def_send.sinfo_flags |= policy;
+				stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
+				stcb->asoc.def_send.sinfo_context = info->snd_context;
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
+			      (info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
+				SCTP_INP_WLOCK(inp);
+				inp->def_send.sinfo_stream = info->snd_sid;
+				policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
+				inp->def_send.sinfo_flags = info->snd_flags;
+				inp->def_send.sinfo_flags |= policy;
+				inp->def_send.sinfo_ppid = info->snd_ppid;
+				inp->def_send.sinfo_context = info->snd_context;
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
+			     (info->snd_assoc_id == SCTP_ALL_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					if (info->snd_sid < stcb->asoc.streamoutcnt) {
+						stcb->asoc.def_send.sinfo_stream = info->snd_sid;
+						policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
+						stcb->asoc.def_send.sinfo_flags = info->snd_flags;
+						stcb->asoc.def_send.sinfo_flags |= policy;
+						stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
+						stcb->asoc.def_send.sinfo_context = info->snd_context;
+					}
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			}
+		}
+		break;
+	}
+	case SCTP_DEFAULT_PRINFO:
+	{
+		struct sctp_default_prinfo *info;
+
+		SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
+		SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
+
+		if (info->pr_policy > SCTP_PR_SCTP_MAX) {
+			if (stcb) {
+				SCTP_TCB_UNLOCK(stcb);
+			}
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			break;
+		}
+		if (stcb) {
+			stcb->asoc.def_send.sinfo_flags &= 0xfff0;
+			stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
+			stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
+			      (info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
+				SCTP_INP_WLOCK(inp);
+				inp->def_send.sinfo_flags &= 0xfff0;
+				inp->def_send.sinfo_flags |= info->pr_policy;
+				inp->def_send.sinfo_timetolive = info->pr_value;
+				SCTP_INP_WUNLOCK(inp);
+			}
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			    ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
+			     (info->pr_assoc_id == SCTP_ALL_ASSOC))) {
+				SCTP_INP_RLOCK(inp);
+				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
+					SCTP_TCB_LOCK(stcb);
+					stcb->asoc.def_send.sinfo_flags &= 0xfff0;
+					stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
+					stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
+					SCTP_TCB_UNLOCK(stcb);
+				}
+				SCTP_INP_RUNLOCK(inp);
+			}
+		}
+		break;
+	}
+	case SCTP_PEER_ADDR_THLDS:
+		/* Applies to the specific association */
+	{
+		struct sctp_paddrthlds *thlds;
+		struct sctp_nets *net;
+		struct sockaddr *addr;
+#if defined(INET) && defined(INET6)
+		struct sockaddr_in sin_store;
+#endif
+
+		SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
+		SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
+
+#if defined(INET) && defined(INET6)
+		if (thlds->spt_address.ss_family == AF_INET6) {
+			struct sockaddr_in6 *sin6;
+
+			sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
+			if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
+				in6_sin6_2_sin(&sin_store, sin6);
+				addr = (struct sockaddr *)&sin_store;
+			} else {
+				addr = (struct sockaddr *)&thlds->spt_address;
+			}
+		} else {
+			addr = (struct sockaddr *)&thlds->spt_address;
+		}
+#else
+		addr = (struct sockaddr *)&thlds->spt_address;
+#endif
+		if (stcb != NULL) {
+			net = sctp_findnet(stcb, addr);
+		} else {
+			/* We increment here since sctp_findassociation_ep_addr() wil
+			 * do a decrement if it finds the stcb as long as the locked
+			 * tcb (last argument) is NOT a TCB.. aka NULL.
+			 */
+			net = NULL;
+			SCTP_INP_INCR_REF(inp);
+			stcb = sctp_findassociation_ep_addr(&inp, addr,
+			                                    &net, NULL, NULL);
+			if (stcb == NULL) {
+				SCTP_INP_DECR_REF(inp);
+			}
+		}
+		if ((stcb != NULL) && (net == NULL)) {
+#ifdef INET
+			if (addr->sa_family == AF_INET) {
+				struct sockaddr_in *sin;
+
+				sin = (struct sockaddr_in *)addr;
+				if (sin->sin_addr.s_addr != INADDR_ANY) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					SCTP_TCB_UNLOCK(stcb);
+					error = EINVAL;
+					break;
+				}
+			} else
+#endif
+#ifdef INET6
+			if (addr->sa_family == AF_INET6) {
+				struct sockaddr_in6 *sin6;
+
+				sin6 = (struct sockaddr_in6 *)addr;
+				if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					SCTP_TCB_UNLOCK(stcb);
+					error = EINVAL;
+					break;
+				}
+			} else
+#endif
+#if defined(__Userspace__)
+			if (addr->sa_family == AF_CONN) {
+				struct sockaddr_conn *sconn;
+
+				sconn = (struct sockaddr_conn *)addr;
+				if (sconn->sconn_addr != NULL) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					SCTP_TCB_UNLOCK(stcb);
+					error = EINVAL;
+					break;
+				}
+			} else
+#endif
+			{
+				error = EAFNOSUPPORT;
+				SCTP_TCB_UNLOCK(stcb);
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+				break;
+			}
+		}
+		if (thlds->spt_pathcpthld != 0xffff) {
+			if (stcb != NULL) {
+				SCTP_TCB_UNLOCK(stcb);
+			}
+			error = EINVAL;
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+			break;
+		}
+		if (stcb != NULL) {
+			if (net != NULL) {
+				net->failure_threshold = thlds->spt_pathmaxrxt;
+				net->pf_threshold = thlds->spt_pathpfthld;
+				if (net->dest_state & SCTP_ADDR_PF) {
+					if ((net->error_count > net->failure_threshold) ||
+					    (net->error_count <= net->pf_threshold)) {
+						net->dest_state &= ~SCTP_ADDR_PF;
+					}
+				} else {
+					if ((net->error_count > net->pf_threshold) &&
+					    (net->error_count <= net->failure_threshold)) {
+						net->dest_state |= SCTP_ADDR_PF;
+						sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
+						sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
+						                stcb->sctp_ep, stcb, net,
+						                SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
+						sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
+					}
+				}
+				if (net->dest_state & SCTP_ADDR_REACHABLE) {
+					if (net->error_count > net->failure_threshold) {
+						net->dest_state &= ~SCTP_ADDR_REACHABLE;
+						sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
+					}
+				} else {
+					if (net->error_count <= net->failure_threshold) {
+						net->dest_state |= SCTP_ADDR_REACHABLE;
+						sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
+					}
+				}
+			} else {
+				TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+					net->failure_threshold = thlds->spt_pathmaxrxt;
+					net->pf_threshold = thlds->spt_pathpfthld;
+					if (net->dest_state & SCTP_ADDR_PF) {
+						if ((net->error_count > net->failure_threshold) ||
+						    (net->error_count <= net->pf_threshold)) {
+							net->dest_state &= ~SCTP_ADDR_PF;
+						}
+					} else {
+						if ((net->error_count > net->pf_threshold) &&
+						    (net->error_count <= net->failure_threshold)) {
+							net->dest_state |= SCTP_ADDR_PF;
+							sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
+							sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
+							                stcb->sctp_ep, stcb, net,
+							                SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
+							sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
+						}
+					}
+					if (net->dest_state & SCTP_ADDR_REACHABLE) {
+						if (net->error_count > net->failure_threshold) {
+							net->dest_state &= ~SCTP_ADDR_REACHABLE;
+							sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
+						}
+					} else {
+						if (net->error_count <= net->failure_threshold) {
+							net->dest_state |= SCTP_ADDR_REACHABLE;
+							sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
+						}
+					}
+				}
+				stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
+				stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_WLOCK(inp);
+				inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
+				inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
+				SCTP_INP_WUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_REMOTE_UDP_ENCAPS_PORT:
+	{
+		struct sctp_udpencaps *encaps;
+		struct sctp_nets *net;
+		struct sockaddr *addr;
+#if defined(INET) && defined(INET6)
+		struct sockaddr_in sin_store;
+#endif
+
+		SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
+		SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
+
+#if defined(INET) && defined(INET6)
+		if (encaps->sue_address.ss_family == AF_INET6) {
+			struct sockaddr_in6 *sin6;
+
+			sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
+			if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
+				in6_sin6_2_sin(&sin_store, sin6);
+				addr = (struct sockaddr *)&sin_store;
+			} else {
+				addr = (struct sockaddr *)&encaps->sue_address;
+			}
+		} else {
+			addr = (struct sockaddr *)&encaps->sue_address;
+		}
+#else
+		addr = (struct sockaddr *)&encaps->sue_address;
+#endif
+		if (stcb != NULL) {
+			net = sctp_findnet(stcb, addr);
+		} else {
+			/* We increment here since sctp_findassociation_ep_addr() wil
+			 * do a decrement if it finds the stcb as long as the locked
+			 * tcb (last argument) is NOT a TCB.. aka NULL.
+			 */
+			net = NULL;
+			SCTP_INP_INCR_REF(inp);
+			stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
+			if (stcb == NULL) {
+				SCTP_INP_DECR_REF(inp);
+			}
+		}
+		if ((stcb != NULL) && (net == NULL)) {
+#ifdef INET
+			if (addr->sa_family == AF_INET) {
+				struct sockaddr_in *sin;
+
+				sin = (struct sockaddr_in *)addr;
+				if (sin->sin_addr.s_addr != INADDR_ANY) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					SCTP_TCB_UNLOCK(stcb);
+					error = EINVAL;
+					break;
+				}
+			} else
+#endif
+#ifdef INET6
+			if (addr->sa_family == AF_INET6) {
+				struct sockaddr_in6 *sin6;
+
+				sin6 = (struct sockaddr_in6 *)addr;
+				if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					SCTP_TCB_UNLOCK(stcb);
+					error = EINVAL;
+					break;
+				}
+			} else
+#endif
+#if defined(__Userspace__)
+			if (addr->sa_family == AF_CONN) {
+				struct sockaddr_conn *sconn;
+
+				sconn = (struct sockaddr_conn *)addr;
+				if (sconn->sconn_addr != NULL) {
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					SCTP_TCB_UNLOCK(stcb);
+					error = EINVAL;
+					break;
+				}
+			} else
+#endif
+			{
+					error = EAFNOSUPPORT;
+					SCTP_TCB_UNLOCK(stcb);
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+					break;
+				}
+		}
+
+		if (stcb != NULL) {
+			if (net != NULL) {
+				net->port = encaps->sue_port;
+			} else {
+				stcb->asoc.port = encaps->sue_port;
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_WLOCK(inp);
+				inp->sctp_ep.port = encaps->sue_port;
+				SCTP_INP_WUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_ECN_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_WLOCK(inp);
+				if (av->assoc_value == 0) {
+					inp->ecn_supported = 0;
+				} else {
+					inp->ecn_supported = 1;
+				}
+				SCTP_INP_WUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_PR_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_WLOCK(inp);
+				if (av->assoc_value == 0) {
+					inp->prsctp_supported = 0;
+				} else {
+					inp->prsctp_supported = 1;
+				}
+				SCTP_INP_WUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_AUTH_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				if ((av->assoc_value == 0) &&
+				    (inp->asconf_supported == 1)) {
+				    	/* AUTH is required for ASCONF */
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					error = EINVAL;
+				} else {
+					SCTP_INP_WLOCK(inp);
+					if (av->assoc_value == 0) {
+						inp->auth_supported = 0;
+					} else {
+						inp->auth_supported = 1;
+					}
+					SCTP_INP_WUNLOCK(inp);
+				}
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_ASCONF_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				if ((av->assoc_value != 0) &&
+				    (inp->auth_supported == 0)) {
+				    	/* AUTH is required for ASCONF */
+					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+					error = EINVAL;
+				} else {
+					SCTP_INP_WLOCK(inp);
+					if (av->assoc_value == 0) {
+						inp->asconf_supported = 0;
+						sctp_auth_delete_chunk(SCTP_ASCONF,
+						                       inp->sctp_ep.local_auth_chunks);
+						sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
+						                       inp->sctp_ep.local_auth_chunks);
+					} else {
+						inp->asconf_supported = 1;
+						sctp_auth_add_chunk(SCTP_ASCONF,
+						                    inp->sctp_ep.local_auth_chunks);
+						sctp_auth_add_chunk(SCTP_ASCONF_ACK,
+						                    inp->sctp_ep.local_auth_chunks);
+					}
+					SCTP_INP_WUNLOCK(inp);
+				}
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_RECONFIG_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_WLOCK(inp);
+				if (av->assoc_value == 0) {
+					inp->reconfig_supported = 0;
+				} else {
+					inp->reconfig_supported = 1;
+				}
+				SCTP_INP_WUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_NRSACK_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_WLOCK(inp);
+				if (av->assoc_value == 0) {
+					inp->nrsack_supported = 0;
+				} else {
+					inp->nrsack_supported = 1;
+				}
+				SCTP_INP_WUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_PKTDROP_SUPPORTED:
+	{
+		struct sctp_assoc_value *av;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			error = EINVAL;
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_WLOCK(inp);
+				if (av->assoc_value == 0) {
+					inp->pktdrop_supported = 0;
+				} else {
+					inp->pktdrop_supported = 1;
+				}
+				SCTP_INP_WUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_MAX_CWND:
+	{
+		struct sctp_assoc_value *av;
+		struct sctp_nets *net;
+
+		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
+		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
+
+		if (stcb) {
+			stcb->asoc.max_cwnd = av->assoc_value;
+			if (stcb->asoc.max_cwnd > 0) {
+				TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+					if ((net->cwnd > stcb->asoc.max_cwnd) &&
+					    (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
+						net->cwnd = stcb->asoc.max_cwnd;
+						if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
+							net->cwnd = net->mtu - sizeof(struct sctphdr);
+						}
+					}
+				}
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
+			     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
+				SCTP_INP_WLOCK(inp);
+				inp->max_cwnd = av->assoc_value;
+				SCTP_INP_WUNLOCK(inp);
+			} else {
+				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+				error = EINVAL;
+			}
+		}
+		break;
+	}
+	case SCTP_ACCEPT_ZERO_CHECKSUM:
+	{
+		uint32_t *value;
+
+		SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
+		SCTP_INP_WLOCK(inp);
+		if (*value != 0) {
+			inp->zero_checksum = 1;
+		} else {
+			inp->zero_checksum = 0;
+		}
+		SCTP_INP_WUNLOCK(inp);
+		break;
+	}
+
+	default:
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
+		error = ENOPROTOOPT;
+		break;
+	} /* end switch (opt) */
+	return (error);
+}
+
+#if !defined(__Userspace__)
+int
+sctp_ctloutput(struct socket *so, struct sockopt *sopt)
+{
+#if defined(__FreeBSD__)
+	struct epoch_tracker et;
+	struct sctp_inpcb *inp;
+#endif
+	void *optval = NULL;
+	void *p;
+	size_t optsize = 0;
+	int error = 0;
+
+#if defined(__FreeBSD__)
+	if ((sopt->sopt_level == SOL_SOCKET) &&
+	    (sopt->sopt_name == SO_SETFIB)) {
+		inp = (struct sctp_inpcb *)so->so_pcb;
+		if (inp == NULL) {
+			SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
+			return (EINVAL);
+		}
+		SCTP_INP_WLOCK(inp);
+		inp->fibnum = so->so_fibnum;
+		SCTP_INP_WUNLOCK(inp);
+		return (0);
+	}
+#endif
+	if (sopt->sopt_level != IPPROTO_SCTP) {
+		/* wrong proto level... send back up to IP */
+#ifdef INET6
+		if (INP_CHECK_SOCKAF(so, AF_INET6))
+			error = ip6_ctloutput(so, sopt);
+#endif				/* INET6 */
+#if defined(INET) && defined(INET6)
+		else
+#endif
+#ifdef INET
+			error = ip_ctloutput(so, sopt);
+#endif
+		return (error);
+	}
+	optsize = sopt->sopt_valsize;
+	if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
+		SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
+		return (ENOBUFS);
+	}
+	if (optsize) {
+		SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
+		if (optval == NULL) {
+			SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
+			return (ENOBUFS);
+		}
+		error = sooptcopyin(sopt, optval, optsize, optsize);
+		if (error) {
+			SCTP_FREE(optval, SCTP_M_SOCKOPT);
+			goto out;
+		}
+	}
+#if defined(__FreeBSD__) || defined(_WIN32)
+	p = (void *)sopt->sopt_td;
+#else
+	p = (void *)sopt->sopt_p;
+#endif
+	if (sopt->sopt_dir == SOPT_SET) {
+#if defined(__FreeBSD__)
+		NET_EPOCH_ENTER(et);
+#endif
+		error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
+#if defined(__FreeBSD__)
+		NET_EPOCH_EXIT(et);
+#endif
+	} else if (sopt->sopt_dir == SOPT_GET) {
+		error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
+	} else {
+		SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		error = EINVAL;
+	}
+	if ((error == 0) && (optval != NULL)) {
+		error = sooptcopyout(sopt, optval, optsize);
+		SCTP_FREE(optval, SCTP_M_SOCKOPT);
+	} else if (optval != NULL) {
+		SCTP_FREE(optval, SCTP_M_SOCKOPT);
+	}
+out:
+	return (error);
+}
+#endif
+
+#ifdef INET
+#if defined(__Userspace__)
+int
+sctp_connect(struct socket *so, struct sockaddr *addr)
+{
+	void *p = NULL;
+#elif defined(__FreeBSD__)
+static int
+sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
+{
+#elif defined(__APPLE__)
+static int
+sctp_connect(struct socket *so, struct sockaddr *addr, struct proc *p)
+{
+#elif defined(_WIN32)
+static int
+sctp_connect(struct socket *so, struct sockaddr *addr, PKTHREAD p)
+{
+#else
+static int
+sctp_connect(struct socket *so, struct mbuf *nam, struct proc *p)
+{
+	struct sockaddr *addr = mtod(nam, struct sockaddr *);
+
+#endif
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	struct epoch_tracker et;
+#endif
+#ifdef SCTP_MVRF
+	int i, fnd = 0;
+#endif
+	int error = 0;
+	int create_lock_on = 0;
+	uint32_t vrf_id;
+	struct sctp_inpcb *inp;
+	struct sctp_tcb *stcb = NULL;
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL) {
+		/* I made the same as TCP since we are not setup? */
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (ECONNRESET);
+	}
+	if (addr == NULL) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return EINVAL;
+	}
+
+#if defined(__Userspace__)
+	/* TODO __Userspace__ falls into this code for IPv6 stuff at the moment... */
+#endif
+#if !defined(_WIN32) && !defined(__linux__) && !defined(__EMSCRIPTEN__)
+	switch (addr->sa_family) {
+#ifdef INET6
+	case AF_INET6:
+	{
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		struct sockaddr_in6 *sin6;
+
+#endif
+		if (addr->sa_len != sizeof(struct sockaddr_in6)) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			return (EINVAL);
+		}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		sin6 = (struct sockaddr_in6 *)addr;
+		if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_addr)) != 0) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+			return (error);
+		}
+#endif
+		break;
+	}
+#endif
+#ifdef INET
+	case AF_INET:
+	{
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		struct sockaddr_in *sin;
+
+#endif
+#if !defined(_WIN32)
+		if (addr->sa_len != sizeof(struct sockaddr_in)) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			return (EINVAL);
+		}
+#endif
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		sin = (struct sockaddr_in *)addr;
+		if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sin->sin_addr)) != 0) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+			return (error);
+		}
+#endif
+		break;
+	}
+#endif
+	default:
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
+		return (EAFNOSUPPORT);
+	}
+#endif
+	SCTP_INP_INCR_REF(inp);
+	SCTP_ASOC_CREATE_LOCK(inp);
+	create_lock_on = 1;
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	NET_EPOCH_ENTER(et);
+#endif
+
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
+	    (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
+		/* Should I really unlock ? */
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
+		error = EFAULT;
+		goto out_now;
+	}
+#ifdef INET6
+	if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
+	    (addr->sa_family == AF_INET6)) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		error = EINVAL;
+		goto out_now;
+	}
+#endif
+#if defined(__Userspace__)
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_CONN) &&
+	    (addr->sa_family != AF_CONN)) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		error = EINVAL;
+		goto out_now;
+	}
+#endif
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
+		/* Bind a ephemeral port */
+		error = sctp_inpcb_bind(so, NULL, NULL, p);
+		if (error) {
+			goto out_now;
+		}
+	}
+	/* Now do we connect? */
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
+	    (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		error = EINVAL;
+		goto out_now;
+	}
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
+	    (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
+		/* We are already connected AND the TCP model */
+		SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
+		error = EADDRINUSE;
+		goto out_now;
+	}
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
+		SCTP_INP_RLOCK(inp);
+		stcb = LIST_FIRST(&inp->sctp_asoc_list);
+		SCTP_INP_RUNLOCK(inp);
+	} else {
+		/* We increment here since sctp_findassociation_ep_addr() will
+		 * do a decrement if it finds the stcb as long as the locked
+		 * tcb (last argument) is NOT a TCB.. aka NULL.
+		 */
+		SCTP_INP_INCR_REF(inp);
+		stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
+		if (stcb == NULL) {
+			SCTP_INP_DECR_REF(inp);
+		} else {
+			SCTP_TCB_UNLOCK(stcb);
+		}
+	}
+	if (stcb != NULL) {
+		/* Already have or am bring up an association */
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
+		error = EALREADY;
+		goto out_now;
+	}
+
+	vrf_id = inp->def_vrf_id;
+#ifdef SCTP_MVRF
+	for (i = 0; i < inp->num_vrfs; i++) {
+		if (vrf_id == inp->m_vrf_ids[i]) {
+			fnd = 1;
+			break;
+		}
+	}
+	if (!fnd) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		error = EINVAL;
+		goto out_now;
+	}
+#endif
+	/* We are GOOD to go */
+	stcb = sctp_aloc_assoc_connected(inp, addr, &error, 0, 0, vrf_id,
+	                                 inp->sctp_ep.pre_open_stream_count,
+	                                 inp->sctp_ep.port, p,
+	                                 SCTP_INITIALIZE_AUTH_PARAMS);
+	if (stcb == NULL) {
+		/* Gak! no memory */
+		goto out_now;
+	}
+	SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
+	(void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
+
+	sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
+	SCTP_TCB_UNLOCK(stcb);
+ out_now:
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	NET_EPOCH_EXIT(et);
+#endif
+	if (create_lock_on) {
+		SCTP_ASOC_CREATE_UNLOCK(inp);
+	}
+	SCTP_INP_DECR_REF(inp);
+	return (error);
+}
+#endif
+
+#if defined(__Userspace__)
+int
+sctpconn_connect(struct socket *so, struct sockaddr *addr)
+{
+#ifdef SCTP_MVRF
+	int i, fnd = 0;
+#endif
+	void *p = NULL;
+	int error = 0;
+	int create_lock_on = 0;
+	uint32_t vrf_id;
+	struct sctp_inpcb *inp;
+	struct sctp_tcb *stcb = NULL;
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL) {
+		/* I made the same as TCP since we are not setup? */
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (ECONNRESET);
+	}
+	if (addr == NULL) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return EINVAL;
+	}
+	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_SCTP_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_SCTP_USRREQ, EINVAL);
+			return (EINVAL);
+		}
+#endif
+		break;
+#endif
+	case AF_CONN:
+#ifdef HAVE_SA_LEN
+		if (addr->sa_len != sizeof(struct sockaddr_conn)) {
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+			return (EINVAL);
+		}
+#endif
+		break;
+	default:
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
+		return (EAFNOSUPPORT);
+	}
+	SCTP_INP_INCR_REF(inp);
+	SCTP_ASOC_CREATE_LOCK(inp);
+	create_lock_on = 1;
+
+
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
+	    (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
+		/* Should I really unlock ? */
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
+	        error = EFAULT;
+		goto out_now;
+	}
+#ifdef INET6
+	if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
+	    (addr->sa_family == AF_INET6)) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		error = EINVAL;
+		goto out_now;
+	}
+#endif
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
+		/* Bind a ephemeral port */
+		error = sctp_inpcb_bind(so, NULL, NULL, p);
+		if (error) {
+			goto out_now;
+		}
+	}
+	/* Now do we connect? */
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
+	    (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		error = EINVAL;
+		goto out_now;
+	}
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
+	    (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
+		/* We are already connected AND the TCP model */
+		SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
+		error = EADDRINUSE;
+		goto out_now;
+	}
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
+		SCTP_INP_RLOCK(inp);
+		stcb = LIST_FIRST(&inp->sctp_asoc_list);
+		SCTP_INP_RUNLOCK(inp);
+	} else {
+		/* We increment here since sctp_findassociation_ep_addr() will
+		 * do a decrement if it finds the stcb as long as the locked
+		 * tcb (last argument) is NOT a TCB.. aka NULL.
+		 */
+		SCTP_INP_INCR_REF(inp);
+		stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
+		if (stcb == NULL) {
+			SCTP_INP_DECR_REF(inp);
+		} else {
+			SCTP_TCB_UNLOCK(stcb);
+		}
+	}
+	if (stcb != NULL) {
+		/* Already have or am bring up an association */
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
+		error = EALREADY;
+		goto out_now;
+	}
+
+	vrf_id = inp->def_vrf_id;
+#ifdef SCTP_MVRF
+	for (i = 0; i < inp->num_vrfs; i++) {
+		if (vrf_id == inp->m_vrf_ids[i]) {
+			fnd = 1;
+			break;
+		}
+	}
+	if (!fnd) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		error = EINVAL;
+		goto out_now;
+	}
+#endif
+	/* We are GOOD to go */
+	stcb = sctp_aloc_assoc_connected(inp, addr, &error, 0, 0, vrf_id,
+	                                 inp->sctp_ep.pre_open_stream_count,
+	                                 inp->sctp_ep.port, p,
+	                                 SCTP_INITIALIZE_AUTH_PARAMS);
+	if (stcb == NULL) {
+		/* Gak! no memory */
+		goto out_now;
+	}
+	SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
+	(void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
+
+	sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
+	SCTP_TCB_UNLOCK(stcb);
+ out_now:
+	if (create_lock_on) {
+		SCTP_ASOC_CREATE_UNLOCK(inp);
+	}
+
+	SCTP_INP_DECR_REF(inp);
+	return (error);
+}
+#endif
+int
+#if defined(__Userspace__)
+sctp_listen(struct socket *so, int backlog, struct proc *p)
+#elif defined(__FreeBSD__)
+sctp_listen(struct socket *so, int backlog, struct thread *p)
+#elif defined(_WIN32)
+sctp_listen(struct socket *so, int backlog, PKTHREAD p)
+#else
+sctp_listen(struct socket *so, struct proc *p)
+#endif
+{
+	/*
+	 * Note this module depends on the protocol processing being called
+	 * AFTER any socket level flags and backlog are applied to the
+	 * socket. The traditional way that the socket flags are applied is
+	 * AFTER protocol processing. We have made a change to the
+	 * sys/kern/uipc_socket.c module to reverse this but this MUST be in
+	 * place if the socket API for SCTP is to work properly.
+	 */
+
+	int error = 0;
+	struct sctp_inpcb *inp;
+
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (inp == NULL) {
+		/* I made the same as TCP since we are not setup? */
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (ECONNRESET);
+	}
+	if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
+		/* See if we have a listener */
+		struct sctp_inpcb *tinp;
+		union sctp_sockstore store;
+
+		if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
+			/* not bound all */
+			struct sctp_laddr *laddr;
+
+			LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
+				memcpy(&store, &laddr->ifa->address, sizeof(store));
+				switch (store.sa.sa_family) {
+#ifdef INET
+				case AF_INET:
+					store.sin.sin_port = inp->sctp_lport;
+					break;
+#endif
+#ifdef INET6
+				case AF_INET6:
+					store.sin6.sin6_port = inp->sctp_lport;
+					break;
+#endif
+#if defined(__Userspace__)
+				case AF_CONN:
+					store.sconn.sconn_port = inp->sctp_lport;
+					break;
+#endif
+				default:
+					break;
+				}
+				tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
+				if (tinp && (tinp != inp) &&
+				    ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
+				    ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
+				    (SCTP_IS_LISTENING(tinp))) {
+					/* we have a listener already and its not this inp. */
+					SCTP_INP_DECR_REF(tinp);
+					return (EADDRINUSE);
+				} else if (tinp) {
+					SCTP_INP_DECR_REF(tinp);
+				}
+			}
+		} else {
+			/* Setup a local addr bound all */
+			memset(&store, 0, sizeof(store));
+#ifdef INET6
+			if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
+				store.sa.sa_family = AF_INET6;
+#ifdef HAVE_SA_LEN
+				store.sa.sa_len = sizeof(struct sockaddr_in6);
+#endif
+			}
+#endif
+#if defined(__Userspace__)
+			if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_CONN) {
+				store.sa.sa_family = AF_CONN;
+#ifdef HAVE_SA_LEN
+				store.sa.sa_len = sizeof(struct sockaddr_conn);
+#endif
+			}
+#endif
+#ifdef INET
+#if defined(__Userspace__)
+			if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
+			    ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_CONN) == 0)) {
+#else
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
+#endif
+				store.sa.sa_family = AF_INET;
+#ifdef HAVE_SA_LEN
+				store.sa.sa_len = sizeof(struct sockaddr_in);
+#endif
+			}
+#endif
+			switch (store.sa.sa_family) {
+#ifdef INET
+			case AF_INET:
+				store.sin.sin_port = inp->sctp_lport;
+				break;
+#endif
+#ifdef INET6
+			case AF_INET6:
+				store.sin6.sin6_port = inp->sctp_lport;
+				break;
+#endif
+#if defined(__Userspace__)
+			case AF_CONN:
+				store.sconn.sconn_port = inp->sctp_lport;
+				break;
+#endif
+			default:
+				break;
+			}
+			tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
+			if (tinp && (tinp != inp) &&
+			    ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
+			    ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
+			    (SCTP_IS_LISTENING(tinp))) {
+				/* we have a listener already and its not this inp. */
+				SCTP_INP_DECR_REF(tinp);
+				return (EADDRINUSE);
+			} else if (tinp) {
+				SCTP_INP_DECR_REF(tinp);
+			}
+		}
+	}
+	SCTP_INP_INFO_WLOCK();
+	SCTP_INP_WLOCK(inp);
+#ifdef SCTP_LOCK_LOGGING
+	if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
+		sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
+	}
+#endif
+	if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
+	    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
+		/* The unlucky case
+		 * - We are in the tcp pool with this guy.
+		 * - Someone else is in the main inp slot.
+		 * - We must move this guy (the listener) to the main slot
+		 * - We must then move the guy that was listener to the TCP Pool.
+		 */
+		if (sctp_swap_inpcb_for_listen(inp)) {
+			error = EADDRINUSE;
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+			goto out;
+		}
+	}
+#if defined(__FreeBSD__) || defined(__Userspace__)
+	SOCK_LOCK(so);
+	error = solisten_proto_check(so);
+	if (error) {
+		SOCK_UNLOCK(so);
+		goto out;
+	}
+#endif
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
+	    (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
+		SOCK_UNLOCK(so);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		solisten_proto_abort(so);
+#endif
+		error = EADDRINUSE;
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+		goto out;
+	}
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
+	    ((inp->sctp_flags & SCTP_PCB_FLAGS_WAS_CONNECTED) ||
+	     (inp->sctp_flags & SCTP_PCB_FLAGS_WAS_ABORTED))) {
+		SOCK_UNLOCK(so);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+		solisten_proto_abort(so);
+#endif
+		error = EINVAL;
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
+		goto out;
+	}
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
+		if ((error = sctp_inpcb_bind_locked(inp, NULL, NULL, p))) {
+			SOCK_UNLOCK(so);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+			solisten_proto_abort(so);
+#endif
+			/* bind error, probably perm */
+			goto out;
+		}
+	}
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+	if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
+		solisten_proto(so, backlog);
+		SOCK_UNLOCK(so);
+		inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
+	} else {
+		solisten_proto_abort(so);
+		SOCK_UNLOCK(so);
+		if (backlog > 0) {
+			inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
+		} else {
+			inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
+		}
+	}
+#elif defined(_WIN32) || defined(__Userspace__)
+	solisten_proto(so, backlog);
+#endif
+#if !(defined(__FreeBSD__) && !defined(__Userspace__))
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
+		/* remove the ACCEPTCONN flag for one-to-many sockets */
+#if defined(__Userspace__)
+		so->so_options &= ~SCTP_SO_ACCEPTCONN;
+#else
+		so->so_options &= ~SO_ACCEPTCONN;
+#endif
+	}
+	SOCK_UNLOCK(so);
+	if (backlog > 0) {
+		inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
+	} else {
+		inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
+	}
+#endif
+out:
+	SCTP_INP_WUNLOCK(inp);
+	SCTP_INP_INFO_WUNLOCK();
+	return (error);
+}
+
+static int sctp_defered_wakeup_cnt = 0;
+
+int
+sctp_accept(struct socket *so, struct sockaddr **addr)
+{
+	struct sctp_tcb *stcb;
+	struct sctp_inpcb *inp;
+	union sctp_sockstore store;
+#ifdef INET6
+#if defined(SCTP_KAME) && defined(SCTP_EMBEDDED_V6_SCOPE)
+	int error;
+#endif
+#endif
+	inp = (struct sctp_inpcb *)so->so_pcb;
+
+	if (inp == NULL) {
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (ECONNRESET);
+	}
+	SCTP_INP_WLOCK(inp);
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
+		SCTP_INP_WUNLOCK(inp);
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
+		return (EOPNOTSUPP);
+	}
+	if (so->so_state & SS_ISDISCONNECTED) {
+		SCTP_INP_WUNLOCK(inp);
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
+		return (ECONNABORTED);
+	}
+	stcb = LIST_FIRST(&inp->sctp_asoc_list);
+	if (stcb == NULL) {
+		SCTP_INP_WUNLOCK(inp);
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (ECONNRESET);
+	}
+	SCTP_TCB_LOCK(stcb);
+	store = stcb->asoc.primary_destination->ro._l_addr;
+	SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
+	/* Wake any delayed sleep action */
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
+		inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
+		if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
+			inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
+			SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
+			if (sowriteable(inp->sctp_socket)) {
+#if defined(__Userspace__)
+				/*__Userspace__ calling sowwakup_locked because of SOCKBUF_LOCK above. */
+#endif
+#if defined(__FreeBSD__) || defined(_WIN32) || defined(__Userspace__)
+				sowwakeup_locked(inp->sctp_socket);
+#else
+#if defined(__APPLE__)
+				/* socket is locked */
+#endif
+				sowwakeup(inp->sctp_socket);
+#endif
+			} else {
+				SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
+			}
+		}
+		if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
+			inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
+			SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
+			if (soreadable(inp->sctp_socket)) {
+				sctp_defered_wakeup_cnt++;
+#if defined(__Userspace__)
+				/*__Userspace__ calling sorwakup_locked because of SOCKBUF_LOCK above */
+#endif
+#if defined(__FreeBSD__) || defined(_WIN32) || defined(__Userspace__)
+				sorwakeup_locked(inp->sctp_socket);
+#else
+#if defined(__APPLE__)
+				/* socket is locked */
+#endif
+				sorwakeup(inp->sctp_socket);
+#endif
+			} else {
+				SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
+			}
+		}
+	}
+	SCTP_INP_WUNLOCK(inp);
+	if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
+		sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
+		                SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
+	} else {
+		SCTP_TCB_UNLOCK(stcb);
+	}
+	switch (store.sa.sa_family) {
+#ifdef INET
+	case AF_INET:
+	{
+		struct sockaddr_in *sin;
+
+		SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
+		if (sin == NULL)
+			return (ENOMEM);
+		sin->sin_family = AF_INET;
+#ifdef HAVE_SIN_LEN
+		sin->sin_len = sizeof(*sin);
+#endif
+		sin->sin_port = store.sin.sin_port;
+		sin->sin_addr = store.sin.sin_addr;
+		*addr = (struct sockaddr *)sin;
+		break;
+	}
+#endif
+#ifdef INET6
+	case AF_INET6:
+	{
+		struct sockaddr_in6 *sin6;
+
+		SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
+		if (sin6 == NULL)
+			return (ENOMEM);
+		sin6->sin6_family = AF_INET6;
+#ifdef HAVE_SIN6_LEN
+		sin6->sin6_len = sizeof(*sin6);
+#endif
+		sin6->sin6_port = store.sin6.sin6_port;
+		sin6->sin6_addr = store.sin6.sin6_addr;
+#if defined(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))
+			/*
+			 * sin6->sin6_scope_id =
+			 * ntohs(sin6->sin6_addr.s6_addr16[1]);
+			 */
+			in6_recoverscope(sin6, &sin6->sin6_addr, NULL);	/* skip ifp check */
+		else
+			sin6->sin6_scope_id = 0;	/* XXX */
+#endif /* SCTP_KAME */
+#endif /* SCTP_EMBEDDED_V6_SCOPE */
+		*addr = (struct sockaddr *)sin6;
+		break;
+	}
+#endif
+#if defined(__Userspace__)
+	case AF_CONN:
+	{
+		struct sockaddr_conn *sconn;
+
+		SCTP_MALLOC_SONAME(sconn, struct sockaddr_conn *, sizeof(struct sockaddr_conn));
+		if (sconn == NULL) {
+			return (ENOMEM);
+		}
+		sconn->sconn_family = AF_CONN;
+#ifdef HAVE_SCONN_LEN
+		sconn->sconn_len = sizeof(struct sockaddr_conn);
+#endif
+		sconn->sconn_port = store.sconn.sconn_port;
+		sconn->sconn_addr = store.sconn.sconn_addr;
+		*addr = (struct sockaddr *)sconn;
+		break;
+	}
+#endif
+	default:
+		/* TSNH */
+		break;
+	}
+	return (0);
+}
+
+#ifdef INET
+int
+#if !defined(__Userspace__)
+sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
+{
+	struct sockaddr_in *sin;
+#else
+sctp_ingetaddr(struct socket *so, struct mbuf *nam)
+{
+	struct sockaddr_in *sin = mtod(nam, struct sockaddr_in *);
+#endif
+	uint32_t vrf_id;
+	struct sctp_inpcb *inp;
+	struct sctp_ifa *sctp_ifa;
+
+	/*
+	 * Do the malloc first in case it blocks.
+	 */
+#if !defined(__Userspace__)
+	SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
+	if (sin == NULL)
+		return (ENOMEM);
+#else
+	SCTP_BUF_LEN(nam) = sizeof(*sin);
+	memset(sin, 0, sizeof(*sin));
+#endif
+	sin->sin_family = AF_INET;
+#ifdef HAVE_SIN_LEN
+	sin->sin_len = sizeof(*sin);
+#endif
+	inp = (struct sctp_inpcb *)so->so_pcb;
+	if (!inp) {
+#if !defined(__Userspace__)
+		SCTP_FREE_SONAME(sin);
+#endif
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (ECONNRESET);
+	}
+	SCTP_INP_RLOCK(inp);
+	sin->sin_port = inp->sctp_lport;
+	if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
+		if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
+			struct sctp_tcb *stcb;
+			struct sockaddr_in *sin_a;
+			struct sctp_nets *net;
+			int fnd;
+
+			stcb = LIST_FIRST(&inp->sctp_asoc_list);
+			if (stcb == NULL) {
+				goto notConn;
+			}
+			fnd = 0;
+			sin_a = NULL;
+			SCTP_TCB_LOCK(stcb);
+			TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+				sin_a = (struct sockaddr_in *)&net->ro._l_addr;
+				if (sin_a == NULL)
+					/* this will make coverity happy */
+					continue;
+
+				if (sin_a->sin_family == AF_INET) {
+					fnd = 1;
+					break;
+				}
+			}
+			if ((!fnd) || (sin_a == NULL)) {
+				/* punt */
+				SCTP_TCB_UNLOCK(stcb);
+				goto notConn;
+			}
+
+			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) {
+				sin->sin_addr = sctp_ifa->address.sin.sin_addr;
+				sctp_free_ifa(sctp_ifa);
+			}
+			SCTP_TCB_UNLOCK(stcb);
+		} else {
+			/* For the bound all case you get back 0 */
+	notConn:
+			sin->sin_addr.s_addr = 0;
+		}
+
+	} else {
+		/* Take the first IPv4 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_INET) {
+				struct sockaddr_in *sin_a;
+
+				sin_a = &laddr->ifa->address.sin;
+				sin->sin_addr = sin_a->sin_addr;
+				fnd = 1;
+				break;
+			}
+		}
+		if (!fnd) {
+#if !defined(__Userspace__)
+			SCTP_FREE_SONAME(sin);
+#endif
+			SCTP_INP_RUNLOCK(inp);
+			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
+			return (ENOENT);
+		}
+	}
+	SCTP_INP_RUNLOCK(inp);
+#if !defined(__Userspace__)
+	(*addr) = (struct sockaddr *)sin;
+#endif
+	return (0);
+}
+
+int
+#if !defined(__Userspace__)
+sctp_peeraddr(struct socket *so, struct sockaddr **addr)
+{
+	struct sockaddr_in *sin;
+#else
+sctp_peeraddr(struct socket *so, struct mbuf *nam)
+{
+	struct sockaddr_in *sin = mtod(nam, struct sockaddr_in *);
+
+#endif
+	int fnd;
+	struct sockaddr_in *sin_a;
+	struct sctp_inpcb *inp;
+	struct sctp_tcb *stcb;
+	struct sctp_nets *net;
+
+	/* Do the malloc first in case it blocks. */
+#if !defined(__Userspace__)
+	SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
+	if (sin == NULL)
+		return (ENOMEM);
+#else
+	SCTP_BUF_LEN(nam) = sizeof(*sin);
+	memset(sin, 0, sizeof(*sin));
+#endif
+	sin->sin_family = AF_INET;
+#ifdef HAVE_SIN_LEN
+	sin->sin_len = sizeof(*sin);
+#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(__Userspace__)
+		SCTP_FREE_SONAME(sin);
+#endif
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_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(__Userspace__)
+		SCTP_FREE_SONAME(sin);
+#endif
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
+		return (ECONNRESET);
+	}
+	fnd = 0;
+	TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
+		sin_a = (struct sockaddr_in *)&net->ro._l_addr;
+		if (sin_a->sin_family == AF_INET) {
+			fnd = 1;
+			sin->sin_port = stcb->rport;
+			sin->sin_addr = sin_a->sin_addr;
+			break;
+		}
+	}
+	SCTP_TCB_UNLOCK(stcb);
+	if (!fnd) {
+		/* No IPv4 address */
+#if !defined(__Userspace__)
+		SCTP_FREE_SONAME(sin);
+#endif
+		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
+		return (ENOENT);
+	}
+#if !defined(__Userspace__)
+	(*addr) = (struct sockaddr *)sin;
+#endif
+	return (0);
+}
+
+#if !defined(__Userspace__)
+#if defined(__FreeBSD__)
+#define	SCTP_PROTOSW						\
+	.pr_protocol =	IPPROTO_SCTP,				\
+	.pr_ctloutput =	sctp_ctloutput,				\
+	.pr_abort =	sctp_abort,				\
+	.pr_accept =	sctp_accept,				\
+	.pr_attach =	sctp_attach,				\
+	.pr_bind =	sctp_bind,				\
+	.pr_connect =	sctp_connect,				\
+	.pr_control =	in_control,				\
+	.pr_close =	sctp_close,				\
+	.pr_detach =	sctp_close,				\
+	.pr_sopoll =	sopoll_generic,				\
+	.pr_flush =	sctp_flush,				\
+	.pr_disconnect = sctp_disconnect,			\
+	.pr_listen =	sctp_listen,				\
+	.pr_peeraddr =	sctp_peeraddr,				\
+	.pr_send =	sctp_sendm,				\
+	.pr_shutdown =	sctp_shutdown,				\
+	.pr_sockaddr =	sctp_ingetaddr,				\
+	.pr_sosend =	sctp_sosend,				\
+	.pr_soreceive =	sctp_soreceive				\
+
+struct protosw sctp_seqpacket_protosw = {
+	.pr_type =	SOCK_SEQPACKET,
+	.pr_flags =	PR_WANTRCVD,
+	SCTP_PROTOSW
+};
+
+struct protosw sctp_stream_protosw = {
+	.pr_type =      SOCK_STREAM,
+	.pr_flags =	PR_CONNREQUIRED | PR_WANTRCVD,
+	SCTP_PROTOSW
+};
+#else
+struct pr_usrreqs sctp_usrreqs = {
+#if defined(__APPLE__)
+	.pru_abort = sctp_abort,
+	.pru_accept = sctp_accept,
+	.pru_attach = sctp_attach,
+	.pru_bind = sctp_bind,
+	.pru_connect = sctp_connect,
+	.pru_connect2 = pru_connect2_notsupp,
+	.pru_control = in_control,
+	.pru_detach = sctp_detach,
+	.pru_disconnect = sctp_disconnect,
+	.pru_listen = sctp_listen,
+	.pru_peeraddr = sctp_peeraddr,
+	.pru_rcvd = NULL,
+	.pru_rcvoob = pru_rcvoob_notsupp,
+	.pru_send = sctp_sendm,
+	.pru_sense = pru_sense_null,
+	.pru_shutdown = sctp_shutdown,
+	.pru_sockaddr = sctp_ingetaddr,
+	.pru_sosend = sctp_sosend,
+	.pru_soreceive = sctp_soreceive,
+	.pru_sopoll = sopoll
+#elif defined(_WIN32) && !defined(__Userspace__)
+	sctp_abort,
+	sctp_accept,
+	sctp_attach,
+	sctp_bind,
+	sctp_connect,
+	pru_connect2_notsupp,
+	NULL,
+	NULL,
+	sctp_disconnect,
+	sctp_listen,
+	sctp_peeraddr,
+	NULL,
+	pru_rcvoob_notsupp,
+	NULL,
+	pru_sense_null,
+	sctp_shutdown,
+	sctp_flush,
+	sctp_ingetaddr,
+	sctp_sosend,
+	sctp_soreceive,
+	sopoll_generic,
+	NULL,
+	sctp_close
+#endif
+};
+#endif
+#endif
+#endif
+
+#if defined(__Userspace__)
+int
+register_recv_cb(struct socket *so,
+                 int (*receive_cb)(struct socket *sock, union sctp_sockstore addr, void *data,
+                 size_t datalen, struct sctp_rcvinfo, int flags, void *ulp_info))
+{
+	struct sctp_inpcb *inp;
+
+	inp = (struct sctp_inpcb *) so->so_pcb;
+	if (inp == NULL) {
+		return (0);
+	}
+	SCTP_INP_WLOCK(inp);
+	inp->recv_callback = receive_cb;
+	SCTP_INP_WUNLOCK(inp);
+	return (1);
+}
+
+int
+register_send_cb(struct socket *so, uint32_t sb_threshold, int (*send_cb)(struct socket *sock, uint32_t sb_free, void *ulp_info))
+{
+	struct sctp_inpcb *inp;
+
+	inp = (struct sctp_inpcb *) so->so_pcb;
+	if (inp == NULL) {
+		return (0);
+	}
+	SCTP_INP_WLOCK(inp);
+	inp->send_callback = send_cb;
+	inp->send_sb_threshold = sb_threshold;
+	SCTP_INP_WUNLOCK(inp);
+	/* FIXME change to current amount free. This will be the full buffer
+	 * the first time this is registered but it could be only a portion
+	 * of the send buffer if this is called a second time e.g. if the
+	 * threshold changes.
+	 */
+	return (1);
+}
+
+int
+register_ulp_info (struct socket *so, void *ulp_info)
+{
+	struct sctp_inpcb *inp;
+
+	inp = (struct sctp_inpcb *) so->so_pcb;
+	if (inp == NULL) {
+		return (0);
+	}
+	SCTP_INP_WLOCK(inp);
+	inp->ulp_info = ulp_info;
+	SCTP_INP_WUNLOCK(inp);
+	return (1);
+}
+
+int
+retrieve_ulp_info (struct socket *so, void **pulp_info)
+{
+	struct sctp_inpcb *inp;
+
+	if (pulp_info == NULL) {
+		return (0);
+	}
+
+	inp = (struct sctp_inpcb *) so->so_pcb;
+	if (inp == NULL) {
+		return (0);
+	}
+	SCTP_INP_RLOCK(inp);
+	*pulp_info = inp->ulp_info;
+	SCTP_INP_RUNLOCK(inp);
+	return (1);
+}
+#endif