The Tor Browser: netwerk/sctp/src/netinet/sctp_usrreq.c@4ab42b5ab56c (annotated)

netwerk/sctp/src/netinet/sctp_usrreq.c@4ab42b5ab56c (annotated)

netwerk/sctp/src/netinet/sctp_usrreq.c

Wed, 31 Dec 2014 07:53:36 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:53:36 +0100
branch: TOR_BUG_3246
changeset 5: 4ab42b5ab56c
permissions: -rwxr-xr-x

Correct small whitespace inconsistency, lost while renaming variables.

 /*-
  * 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.
  */
 #ifdef __FreeBSD__
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD: head/sys/netinet/sctp_usrreq.c 259943 2013-12-27 13:07:00Z tuexen $");
 #endif
 #include <netinet/sctp_os.h>
 #ifdef __FreeBSD__
 #include <sys/proc.h>
 #endif
 #include <netinet/sctp_pcb.h>
 #include <netinet/sctp_header.h>
 #include <netinet/sctp_var.h>
 #ifdef INET6
 #if defined(__Userspace_os_FreeBSD)
 #include <netinet6/sctp6_var.h>
 #endif
 #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>
 #endif
 #if !defined(__Userspace_os_Windows)
 #include <netinet/udp.h>
 #endif
 #if defined(HAVE_SCTP_PEELOFF_SOCKOPT)
 #include <netinet/sctp_peeloff.h>
 #endif				/* HAVE_SCTP_PEELOFF_SOCKOPT */
 #if defined(__APPLE__)
 #define APPLE_FILE_NO 7
 #endif
 extern struct sctp_cc_functions sctp_cc_functions[];
 extern struct sctp_ss_functions sctp_ss_functions[];
 void
 #if defined(__Userspace__)
 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, ...))
 #elif defined(__APPLE__) && (!defined(APPLE_LEOPARD) && !defined(APPLE_SNOWLEOPARD) &&!defined(APPLE_LION) && !defined(APPLE_MOUNTAINLION))
 sctp_init(struct protosw *pp SCTP_UNUSED, struct domain *dp SCTP_UNUSED)
 #else
 sctp_init(void)
 #endif
 {
 #if !defined(__Panda__) && !defined(__Userspace__)
 	u_long sb_max_adj;
 #endif
 #if defined(__Userspace__)
 #if defined(__Userspace_os_Windows)
 #if defined(INET) || defined(INET6)
 	WSADATA wsaData;
 	if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
 		SCTP_PRINTF("WSAStartup failed\n");
 		exit (-1);
 	}
 #endif
 	InitializeConditionVariable(&accept_cond);
 	InitializeCriticalSection(&accept_mtx);
 #else
 	pthread_cond_init(&accept_cond, NULL);
 	pthread_mutex_init(&accept_mtx, NULL);
 #endif
 #endif
 	/* Initialize and modify the sysctled variables */
 	sctp_init_sysctls();
 #if defined(__Userspace__)
 #if defined(__Userspace_os_Windows)
 	srand((unsigned int)time(NULL));
 #else
 	srandom(getpid()); /* so inp->sctp_ep.random_numbers are truly random... */
 #endif
 #endif
 #if defined(__Panda__)
 	sctp_sendspace = SB_MAX;
 	sctp_recvspace = SB_MAX;
 #elif defined(__Userspace__)
 	SCTP_BASE_SYSCTL(sctp_sendspace) = SB_MAX;
 	SCTP_BASE_SYSCTL(sctp_recvspace) = SB_RAW;
 	SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = port;
 #else
 #if !defined(__APPLE__)
 	if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
 		SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
 #endif
 	/*
 	 * 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.
 	 */
 #if defined(__APPLE__)
 	sb_max_adj = (u_long)((u_quad_t) (sb_max) * MCLBYTES / (MSIZE + MCLBYTES));
 #else
 	sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
 #endif
 #if defined(__APPLE__)
 	SCTP_BASE_SYSCTL(sctp_sendspace) = sb_max_adj;
 #else
 	SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
 	    (((uint32_t)nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
 #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(__Userspace_os_Windows)
 #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;
 #endif
 	sctp_pcb_init();
 #if defined(__Userspace__)
 	sctp_start_timer();
 #endif
 #if defined(SCTP_PACKET_LOGGING)
 	SCTP_BASE_VAR(packet_log_writers) = 0;
 	SCTP_BASE_VAR(packet_log_end) = 0;
 	bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
 #endif
 #if defined(__APPLE__)
 	SCTP_BASE_VAR(sctp_main_timer_ticks) = 0;
 	sctp_start_main_timer();
 	timeout(sctp_delayed_startup, NULL, 1);
 #endif
 }
 void
 sctp_finish(void)
 {
 #if defined(__APPLE__)
 	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
 #if !defined(__Userspace_os_Windows)
 #if defined(INET) || defined(INET6)
 	if (SCTP_BASE_VAR(userspace_route) != -1) {
 		pthread_join(SCTP_BASE_VAR(recvthreadroute), NULL);
 	}
 #endif
 #endif
 #ifdef INET
 	if (SCTP_BASE_VAR(userspace_rawsctp) != -1) {
 #if defined(__Userspace_os_Windows)
 		WaitForSingleObject(SCTP_BASE_VAR(recvthreadraw), INFINITE);
 		CloseHandle(SCTP_BASE_VAR(recvthreadraw));
 #else
 		pthread_join(SCTP_BASE_VAR(recvthreadraw), NULL);
 #endif
 	}
 	if (SCTP_BASE_VAR(userspace_udpsctp) != -1) {
 #if defined(__Userspace_os_Windows)
 		WaitForSingleObject(SCTP_BASE_VAR(recvthreadudp), INFINITE);
 		CloseHandle(SCTP_BASE_VAR(recvthreadudp));
 #else
 		pthread_join(SCTP_BASE_VAR(recvthreadudp), NULL);
 #endif
 	}
 #endif
 #ifdef INET6
 	if (SCTP_BASE_VAR(userspace_rawsctp6) != -1) {
 #if defined(__Userspace_os_Windows)
 		WaitForSingleObject(SCTP_BASE_VAR(recvthreadraw6), INFINITE);
 		CloseHandle(SCTP_BASE_VAR(recvthreadraw6));
 #else
 		pthread_join(SCTP_BASE_VAR(recvthreadraw6), NULL);
 #endif
 	}
 	if (SCTP_BASE_VAR(userspace_udpsctp6) != -1) {
 #if defined(__Userspace_os_Windows)
 		WaitForSingleObject(SCTP_BASE_VAR(recvthreadudp6), INFINITE);
 		CloseHandle(SCTP_BASE_VAR(recvthreadudp6));
 #else
 		pthread_join(SCTP_BASE_VAR(recvthreadudp6), NULL);
 #endif
 	}
 #endif
 	SCTP_BASE_VAR(timer_thread_should_exit) = 1;
 #if defined(__Userspace_os_Windows)
 	WaitForSingleObject(SCTP_BASE_VAR(timer_thread), INFINITE);
 	CloseHandle(SCTP_BASE_VAR(timer_thread));
 #else
 	pthread_join(SCTP_BASE_VAR(timer_thread), NULL);
 #endif
 #endif
 	sctp_pcb_finish();
 #if defined(__Userspace__)
 #if defined(__Userspace_os_Windows)
 	DeleteConditionVariable(&accept_cond);
 	DeleteCriticalSection(&accept_mtx);
 #else
 	pthread_cond_destroy(&accept_cond);
 	pthread_mutex_destroy(&accept_mtx);
 #endif
 #endif
 #if defined(__Windows__)
 	sctp_finish_sysctls();
 #if defined(INET) || defined(INET6)
 	WSACleanup();
 #endif
 #endif
 }
 void
 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 {
 	struct sctp_tmit_chunk *chk;
 	uint16_t overhead;
 	/* Adjust that too */
 	stcb->asoc.smallest_mtu = nxtsz;
 	/* now off to subtract IP_DF flag if needed */
 	overhead = IP_HDR_SIZE;
 	if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 		overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 	}
 	TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 		if ((chk->send_size + overhead) > nxtsz) {
 			chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 		}
 	}
 	TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 		if ((chk->send_size + overhead) > nxtsz) {
 			/*
 			 * For this guy we also mark for immediate resend
 			 * since we sent to big of chunk
 			 */
 			chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 			if (chk->sent < SCTP_DATAGRAM_RESEND) {
 				sctp_flight_size_decrease(chk);
 				sctp_total_flight_decrease(stcb, chk);
 			}
 			if (chk->sent != SCTP_DATAGRAM_RESEND) {
 				sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 			}
 			chk->sent = SCTP_DATAGRAM_RESEND;
 			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,
 					       (uintptr_t)chk->whoTo,
 					       chk->rec.data.TSN_seq);
 			}
 			/* Clear any time so NO RTT is being done */
 			chk->do_rtt = 0;
 		}
 	}
 }
 #ifdef INET
 #if !defined(__Userspace__)
 #if defined(__Panda__) || defined(__Windows__)
 void
 #else
 static void
 #endif
 sctp_notify_mbuf(struct sctp_inpcb *inp,
     struct sctp_tcb *stcb,
     struct sctp_nets *net,
     struct ip *ip,
     struct sctphdr *sh)
 {
 	struct icmp *icmph;
 	int totsz, tmr_stopped = 0;
 	uint16_t nxtsz;
 	/* protection */
 	if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 	    (ip == NULL) || (sh == NULL)) {
 		if (stcb != NULL) {
 			SCTP_TCB_UNLOCK(stcb);
 		}
 		return;
 	}
 	/* First job is to verify the vtag matches what I would send */
 	if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 		SCTP_TCB_UNLOCK(stcb);
 		return;
 	}
 	icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 	    sizeof(struct ip)));
 	if (icmph->icmp_type != ICMP_UNREACH) {
 		/* We only care about unreachable */
 		SCTP_TCB_UNLOCK(stcb);
 		return;
 	}
 	if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
 		/* not a unreachable message due to frag. */
 		SCTP_TCB_UNLOCK(stcb);
 		return;
 	}
 #if defined(__FreeBSD__) && __FreeBSD_version >= 1000000
 	totsz = ntohs(ip->ip_len);
 #else
 	totsz = ip->ip_len;
 #endif
 	nxtsz = ntohs(icmph->icmp_nextmtu);
 	if (nxtsz == 0) {
 		/*
 		 * old type router that does not tell us what the next size
 		 * mtu is. Rats we will have to guess (in a educated fashion
 		 * of course)
 		 */
 		nxtsz = sctp_get_prev_mtu(totsz);
 	}
 	/* Stop any PMTU timer */
 	if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 		tmr_stopped = 1;
 		sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 				SCTP_FROM_SCTP_USRREQ+SCTP_LOC_1);
 	}
 	/* Adjust destination size limit */
 	if (net->mtu > nxtsz) {
 		net->mtu = nxtsz;
 		if (net->port) {
 			net->mtu -= sizeof(struct udphdr);
 		}
 	}
 	/* now what about the ep? */
 	if (stcb->asoc.smallest_mtu > nxtsz) {
 		sctp_pathmtu_adjustment(stcb, nxtsz);
 	}
 	if (tmr_stopped)
 		sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 	SCTP_TCB_UNLOCK(stcb);
 }
 #endif
 #endif
 void
 sctp_notify(struct sctp_inpcb *inp,
     struct ip *ip,
     struct sctphdr *sh,
     struct sockaddr *to,
     struct sctp_tcb *stcb,
     struct sctp_nets *net)
 {
 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 	struct socket *so;
 #endif
 	struct icmp *icmph;
 	/* protection */
 	if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 	    (sh == NULL) || (to == NULL)) {
 		if (stcb)
 			SCTP_TCB_UNLOCK(stcb);
 		return;
 	}
 	/* First job is to verify the vtag matches what I would send */
 	if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 		SCTP_TCB_UNLOCK(stcb);
 		return;
 	}
 	icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 					       sizeof(struct ip)));
 	if (icmph->icmp_type != ICMP_UNREACH) {
 		/* We only care about unreachable */
 		SCTP_TCB_UNLOCK(stcb);
 		return;
 	}
 	if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
 	    (icmph->icmp_code == ICMP_UNREACH_HOST) ||
 	    (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 	    (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 	    (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
 	    (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 	    (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 #if defined(__Panda__)
 	    (icmph->icmp_code == ICMP_UNREACH_ADMIN)) {
 #elif defined(__Userspace_os_NetBSD)
 	    (icmph->icmp_code == ICMP_UNREACH_ADMIN_PROHIBIT)) {
 #else
 	    (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 #endif
 		/*
 		 * Hmm reachablity problems we must examine closely. If its
 		 * not reachable, we may have lost a network. Or if there is
 		 * NO protocol at the other end named SCTP. well we consider
 		 * it a OOTB abort.
 		 */
 		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 ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
 		    (icmph->icmp_code == ICMP_UNREACH_PORT)) {
 		/*
 		 * Here the peer is either playing tricks on us,
 		 * including an address that belongs to someone who
 		 * does not support SCTP OR was a userland
 		 * implementation that shutdown and now is dead. In
 		 * either case treat it like a OOTB abort with no
 		 * TCB
 		 */
 		sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 		so = SCTP_INP_SO(inp);
 		atomic_add_int(&stcb->asoc.refcnt, 1);
 		SCTP_TCB_UNLOCK(stcb);
 		SCTP_SOCKET_LOCK(so, 1);
 		SCTP_TCB_LOCK(stcb);
 		atomic_subtract_int(&stcb->asoc.refcnt, 1);
 #endif
 		(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ+SCTP_LOC_2);
 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 		SCTP_SOCKET_UNLOCK(so, 1);
 		/* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed.*/
 #endif
 		/* no need to unlock here, since the TCB is gone */
 	} else {
 		SCTP_TCB_UNLOCK(stcb);
 	}
 }
 #ifdef INET
 #if !defined(__Panda__) && !defined(__Userspace__)
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 void
 #else
 void *
 #endif
 sctp_ctlinput(cmd, sa, vip)
 	int cmd;
 	struct sockaddr *sa;
 	void *vip;
 {
 	struct ip *ip = vip;
 	struct sctphdr *sh;
 	uint32_t vrf_id;
 	/* FIX, for non-bsd is this right? */
 	vrf_id = SCTP_DEFAULT_VRFID;
 	if (sa->sa_family != AF_INET ||
 	    ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 		return;
 #else
 		return (NULL);
 #endif
 	}
 	if (PRC_IS_REDIRECT(cmd)) {
 		ip = 0;
 	} else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 		return;
 #else
 		return (NULL);
 #endif
 	}
 	if (ip) {
 		struct sctp_inpcb *inp = NULL;
 		struct sctp_tcb *stcb = NULL;
 		struct sctp_nets *net = NULL;
 		struct sockaddr_in to, from;
 		sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
 		bzero(&to, sizeof(to));
 		bzero(&from, sizeof(from));
 		from.sin_family = to.sin_family = AF_INET;
 #ifdef HAVE_SIN_LEN
 		from.sin_len = to.sin_len = sizeof(to);
 #endif
 		from.sin_port = sh->src_port;
 		from.sin_addr = ip->ip_src;
 		to.sin_port = sh->dest_port;
 		to.sin_addr = ip->ip_dst;
 		/*
 		 * 'to' holds the dest of the packet that failed to be sent.
 		 * 'from' holds our local endpoint address. Thus we reverse
 		 * the to and the from in the lookup.
 		 */
 		stcb = sctp_findassociation_addr_sa((struct sockaddr *)&to,
 		    (struct sockaddr *)&from,
 		    &inp, &net, 1, vrf_id);
 		if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
 			if (cmd != PRC_MSGSIZE) {
 				sctp_notify(inp, ip, sh,
 				    (struct sockaddr *)&to, stcb,
 				    net);
 			} else {
 				/* handle possible ICMP size messages */
 				sctp_notify_mbuf(inp, stcb, net, ip, sh);
 			}
 		} else {
 #if defined(__FreeBSD__) && __FreeBSD_version < 500000
 			/*
 			 * XXX must be fixed for 5.x and higher, leave for
 			 * 4.x
 			 */
 			if (PRC_IS_REDIRECT(cmd) && inp) {
 				in_rtchange((struct inpcb *)inp,
 				    inetctlerrmap[cmd]);
 			}
 #endif
 			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);
 			}
 		}
 	}
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 	return;
 #else
 	return (NULL);
 #endif
 }
 #endif
 #endif
 #if defined(__FreeBSD__)
 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;
 #if __FreeBSD_version > 602000
 	error = priv_check(req->td, PRIV_NETINET_GETCRED);
 #elif __FreeBSD_version >= 500000
 	error = suser(req->td);
 #else
 	error = suser(req->p);
 #endif
 	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,
 , 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 #endif				/* #if defined(__FreeBSD__) */
 #ifdef INET
 #if defined(__Panda__) || defined(__Windows__) || defined(__Userspace__)
 int
 #elif defined(__FreeBSD__) && __FreeBSD_version > 690000
 static void
 #else
 static int
 #endif
 sctp_abort(struct socket *so)
 {
 	struct sctp_inpcb *inp;
 	uint32_t flags;
 	inp = (struct sctp_inpcb *)so->so_pcb;
 	if (inp == NULL) {
 #if defined(__FreeBSD__) && __FreeBSD_version > 690000
 		return;
 #else
 		SCTP_LTRACE_ERR_RET(NULL, 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)))) {
 #ifdef SCTP_LOG_CLOSING
 		sctp_log_closing(inp, NULL, 16);
 #endif
 		sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 				SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 		SOCK_LOCK(so);
 		SCTP_SB_CLEAR(so->so_snd);
 		/* same for the rcv ones, they are only
 		 * here for the accounting/select.
 		 */
 		SCTP_SB_CLEAR(so->so_rcv);
 #if defined(__APPLE__)
 		so->so_usecount--;
 #else
 		/* Now null out the reference, we are completely detached. */
 		so->so_pcb = NULL;
 #endif
 		SOCK_UNLOCK(so);
 	} else {
 		flags = inp->sctp_flags;
 		if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 			goto sctp_must_try_again;
 		}
 	}
 #if defined(__FreeBSD__) && __FreeBSD_version > 690000
 	return;
 #else
 	return (0);
 #endif
 }
 #if defined(__Panda__) || defined(__Userspace__)
 int
 #else
 static int
 #endif
 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 #elif defined(__Panda__) || defined(__Userspace__)
 sctp_attach(struct socket *so, int proto SCTP_UNUSED, uint32_t vrf_id)
 #elif defined(__Windows__)
 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(__Panda__) && !defined(__Userspace__)
 	uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 #endif
 #ifdef IPSEC
 	uint32_t flags;
 #endif
 	inp = (struct sctp_inpcb *)so->so_pcb;
 	if (inp != 0) {
 		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);
 #ifdef IPSEC
 #if !(defined(__APPLE__))
 	error = ipsec_init_policy(so, &ip_inp->inp_sp);
 #ifdef SCTP_LOG_CLOSING
 	sctp_log_closing(inp, NULL, 17);
 #endif
 	if (error != 0) {
 	try_again:
 		flags = inp->sctp_flags;
 		if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 		    (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 #ifdef SCTP_LOG_CLOSING
 			sctp_log_closing(inp, NULL, 15);
 #endif
 			SCTP_INP_WUNLOCK(inp);
 			sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 					SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 		} else {
 			flags = inp->sctp_flags;
 			if ((flags &  SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 				goto try_again;
 			} else {
 				SCTP_INP_WUNLOCK(inp);
 			}
 		}
 		return (error);
 	}
 #endif
 #endif				/* IPSEC */
 	SCTP_INP_WUNLOCK(inp);
 	return (0);
 }
 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 static int
 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 {
 #elif defined(__FreeBSD__) || defined(__APPLE__)
 static int
 sctp_bind(struct socket *so, struct sockaddr *addr, struct proc *p) {
 #elif defined(__Panda__) || defined(__Userspace__)
 int
 sctp_bind(struct socket *so, struct sockaddr *addr) {
 	void *p = NULL;
 #elif defined(__Windows__)
 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__) && __FreeBSD_version > 690000) || defined(__Windows__) || defined(__Userspace__)
 void
 sctp_close(struct socket *so)
 {
 	struct sctp_inpcb *inp;
 	uint32_t flags;
 	inp = (struct sctp_inpcb *)so->so_pcb;
 	if (inp == NULL)
 		return;
 	/* Inform all the lower layer assoc that we
 	 * are done.
 	 */
  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)) ||
 		    (so->so_rcv.sb_cc > 0)) {
 #else
 		if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 		    (so->so_rcv.sb_cc > 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, 14);
 #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.
 		 */
 		SOCK_LOCK(so);
 		SCTP_SB_CLEAR(so->so_snd);
 		/* same for the rcv ones, they are only
 		 * here for the accounting/select.
 		 */
 		SCTP_SB_CLEAR(so->so_rcv);
 #if !defined(__APPLE__)
 		/* Now null out the reference, we are completely detached. */
 		so->so_pcb = NULL;
 #endif
 		SOCK_UNLOCK(so);
 	} else {
 		flags = inp->sctp_flags;
 		if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 			goto sctp_must_try_again;
 		}
 	}
 	return;
 }
 #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__) && __FreeBSD_version > 690000
 		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)) ||
 		    (so->so_rcv.sb_cc > 0)) {
 #else
 		if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 		    (so->so_rcv.sb_cc > 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__)
 		/* 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__) && __FreeBSD_version > 690000
 	return;
 #else
 	return (0);
 #endif
 }
 #endif
 #if defined(__Userspace__)
 /* __Userspace__ is not calling sctp_sendm */
 #endif
 #if !(defined(__Panda__) || defined(__Windows__))
 int
 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
     struct mbuf *control, struct thread *p);
 #else
 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
     struct mbuf *control, struct proc *p);
 #endif
 int
 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
     struct mbuf *control, struct thread *p)
 {
 #else
 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
     struct mbuf *control, struct proc *p)
 {
 #endif
 	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;
 	} else if (addr == NULL) {
 		SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 		error = EDESTADDRREQ;
 		sctp_m_freem(m);
 		if (control) {
 			sctp_m_freem(control);
 			control = NULL;
 		}
 		return (error);
 	}
 #ifdef INET6
 	if (addr->sa_family != AF_INET) {
 		/* must be a v4 address! */
 		SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 		sctp_m_freem(m);
 		if (control) {
 			sctp_m_freem(control);
 			control = NULL;
 		}
 		error = EDESTADDRREQ;
 		return (error);
 	}
 #endif				/* INET6 */
 connected_type:
 	/* now what about control */
 	if (control) {
 		if (inp->control) {
 			SCTP_PRINTF("huh? control set?\n");
 			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__)
 	/* FreeBSD uses a flag passed */
 	    ((flags & PRUS_MORETOCOME) == 0)
 #else
 			/* 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.
 		 */
 		int ret;
 		ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 		inp->pkt = NULL;
 		inp->control = NULL;
 		return (ret);
 	} else {
 		return (0);
 	}
 }
 #endif
 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 {
 			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(__Userspace__)
 			if (((so->so_options & SCTP_SO_LINGER) &&
 			     (so->so_linger == 0)) ||
 			    (so->so_rcv.sb_cc > 0)) {
 #else
 			if (((so->so_options & SO_LINGER) &&
 			     (so->so_linger == 0)) ||
 			    (so->so_rcv.sb_cc > 0)) {
 #endif
 				if (SCTP_GET_STATE(asoc) !=
 				    SCTP_STATE_COOKIE_WAIT) {
 					/* Left with Data unread */
 					struct mbuf *err;
 					err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 					if (err) {
 						/*
 						 * Fill in the user
 						 * initiated abort
 						 */
 						struct sctp_paramhdr *ph;
 						ph = mtod(err, struct sctp_paramhdr *);
 						SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 						ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 						ph->param_length = htons(SCTP_BUF_LEN(err));
 					}
 					sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 					SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 				}
 				SCTP_INP_RUNLOCK(inp);
 				if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 				    (SCTP_GET_STATE(&stcb->asoc) == 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 */
 				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->locked_on_sending) {
 					goto abort_anyway;
 				}
 				if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 				    (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 					/* only send SHUTDOWN 1st time thru */
 					struct sctp_nets *netp;
 					if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 					    (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 						SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 					}
 					SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 					SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 					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, netp);
 					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
 				 */
 				struct sctp_nets *netp;
 				if (stcb->asoc.alternate) {
 					netp = stcb->asoc.alternate;
 				} else {
 					netp = stcb->asoc.primary_destination;
 				}
 				asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 				sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 						 netp);
 				if (asoc->locked_on_sending) {
 					/* Locked to send out the data */
 					struct sctp_stream_queue_pending *sp;
 					sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 					if (sp == NULL) {
 						SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 							    asoc->locked_on_sending->stream_no);
 					} else {
 						if ((sp->length == 0) && (sp->msg_is_complete == 0))
 							asoc->state |= 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_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
 , M_NOWAIT, 1, MT_DATA);
 					if (op_err) {
 						/* Fill in the user initiated abort */
 						struct sctp_paramhdr *ph;
 						SCTP_BUF_LEN(op_err) = sizeof(struct sctp_paramhdr);
 						ph = mtod(op_err, struct sctp_paramhdr *);
 						ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 						ph->param_length = htons(SCTP_BUF_LEN(op_err));
 					}
 					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->asoc) == SCTP_STATE_OPEN) ||
 					    (SCTP_GET_STATE(&stcb->asoc) == 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);
 					return (0);
 				} else {
 					sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 				}
 			}
 			soisdisconnecting(so);
 			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(__Windows__) || 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);
 		so->so_rcv.sb_cc = 0;
 		so->so_rcv.sb_mbcnt = 0;
 		so->so_rcv.sb_mb = NULL;
 	}
         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
 		 */
 		so->so_snd.sb_cc = 0;
 		so->so_snd.sb_mbcnt = 0;
 		so->so_snd.sb_mb = NULL;
 	}
 	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__) && __FreeBSD_version >= 502115) || defined(__Windows__)
 		SOCKBUF_LOCK(&so->so_rcv);
 		so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 		SOCKBUF_UNLOCK(&so->so_rcv);
 #else
 		so->so_state &= ~SS_CANTRCVMORE;
 #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);
 	}
 	/*
 	 * 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.
 	 */
 	{
 		struct sctp_tcb *stcb;
 		struct sctp_association *asoc;
 		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 (TAILQ_EMPTY(&asoc->send_queue) &&
 		    TAILQ_EMPTY(&asoc->sent_queue) &&
 		    (asoc->stream_queue_cnt == 0)) {
 			if (asoc->locked_on_sending) {
 				goto abort_anyway;
 			}
 			/* there is nothing queued to send, so I'm done... */
 			if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
 				/* only send SHUTDOWN the first time through */
 				struct sctp_nets *netp;
 				if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 				    (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 					SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 				}
 				SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 				SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 				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, netp);
 				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
 			 */
 			struct sctp_nets *netp;
 			if (stcb->asoc.alternate) {
 				netp = stcb->asoc.alternate;
 			} else {
 				netp = stcb->asoc.primary_destination;
 			}
 			asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 			sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 					 netp);
 			if (asoc->locked_on_sending) {
 				/* Locked to send out the data */
 				struct sctp_stream_queue_pending *sp;
 				sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 				if (sp == NULL) {
 					SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 						    asoc->locked_on_sending->stream_no);
 				} else {
 					if ((sp->length == 0)  && (sp-> msg_is_complete == 0)) {
 						asoc->state |= 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_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
 , M_NOWAIT, 1, MT_DATA);
 				if (op_err) {
 					/* Fill in the user initiated abort */
 					struct sctp_paramhdr *ph;
 					SCTP_BUF_LEN(op_err) = sizeof(struct sctp_paramhdr);
 					ph = mtod(op_err, struct sctp_paramhdr *);
 					ph->param_type = htons( SCTP_CAUSE_USER_INITIATED_ABT);
 					ph->param_length = htons(SCTP_BUF_LEN(op_err));
 				}
 				stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ+SCTP_LOC_6;
 				sctp_abort_an_association(stcb->sctp_ep, stcb,
 							  op_err, SCTP_SO_LOCKED);
 				goto skip_unlock;
 			} else {
 				sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 			}
 		}
 		SCTP_TCB_UNLOCK(stcb);
 	}
  skip_unlock:
 	SCTP_INP_RUNLOCK(inp);
 	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_storage *ss, struct sockaddr *sa)
 {
 #ifdef INET6
 #if defined(SCTP_EMBEDDED_V6_SCOPE)
 	struct sockaddr_in6 lsa6;
 	sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
 	    &lsa6);
 #endif
 #endif
 #ifdef HAVE_SA_LEN
 	memcpy(ss, sa, sa->sa_len);
 #else
 	switch (sa->sa_family) {
 #ifdef INET
 	case AF_INET:
 		memcpy(ss, sa, sizeof(struct sockaddr_in));
 		break;
 #endif
 #ifdef INET6
 	case AF_INET6:
 		memcpy(ss, sa, sizeof(struct sockaddr_in6));
 		break;
 #endif
 #if defined(__Userspace__)
 	case AF_CONN:
 		memcpy(ss, sa, sizeof(struct sockaddr_conn));
 		break;
 #endif
 	default:
 		/* TSNH */
 		break;
 	}
 #endif
 	return (0);
 }
 /*
  * NOTE: assumes addr lock is held
  */
 static size_t
 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
 			   struct sctp_tcb *stcb,
 			   size_t limit,
 			   struct sockaddr_storage *sas,
 			   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;
 	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 = (struct sockaddr_in *)&sctp_ifa->address.sa;
 						if (sin->sin_addr.s_addr == 0) {
 							/*
 							 * we skip unspecifed
 							 * addresses
 							 */
 							continue;
 						}
 						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)) {
 							in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
 							((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 							sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
 							actual += sizeof(struct sockaddr_in6);
 						} else {
 #endif
 							memcpy(sas, sin, sizeof(*sin));
 							((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
 							sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
 							actual += sizeof(*sin);
 #ifdef INET6
 						}
 #endif
 						if (actual >= limit) {
 							return (actual);
 						}
 					} 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 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
 						if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
 							/*
 							 * we skip unspecifed
 							 * addresses
 							 */
 							continue;
 						}
 						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;
 						}
 						memcpy(sas, sin6, sizeof(*sin6));
 						((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 						sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
 						actual += sizeof(*sin6);
 						if (actual >= limit) {
 							return (actual);
 						}
 					} else {
 						continue;
 					}
 					break;
 #endif
 #if defined(__Userspace__)
 				case AF_CONN:
 					if (conn_addr_legal) {
 						memcpy(sas, &sctp_ifa->address.sconn, sizeof(struct sockaddr_conn));
 						((struct sockaddr_conn *)sas)->sconn_port = inp->sctp_lport;
 						sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_conn));
 						actual += sizeof(struct sockaddr_conn);
 						if (actual >= limit) {
 							return (actual);
 						}
 					} else {
 						continue;
 					}
 #endif
 				default:
 					/* TSNH */
 					break;
 				}
 			}
 		}
 	} else {
 		struct sctp_laddr *laddr;
 #ifndef HAVE_SA_LEN
 		uint32_t sa_len = 0;
 #endif
 		LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
 			if (stcb) {
 				if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
 					continue;
 				}
 			}
 			if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
 				continue;
 			switch (laddr->ifa->address.sa.sa_family) {
 #ifdef INET
 			case AF_INET:
 				((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
 				break;
 #endif
 #ifdef INET6
 			case AF_INET6:
 				((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
 				break;
 #endif
 #if defined(__Userspace__)
 			case AF_CONN:
 				((struct sockaddr_conn *)sas)->sconn_port = inp->sctp_lport;
 				break;
 #endif
 			default:
 				/* TSNH */
 				break;
 			}
 #ifdef HAVE_SA_LEN
 			sas = (struct sockaddr_storage *)((caddr_t)sas +
 							  laddr->ifa->address.sa.sa_len);
 			actual += 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 */
 				break;
 			}
 			sas = (struct sockaddr_storage *)((caddr_t)sas + sa_len);
 			actual += sa_len;
 #endif
 			if (actual >= limit) {
 				return (actual);
 			}
 		}
 	}
 	return (actual);
 }
 static size_t
 sctp_fill_up_addresses(struct sctp_inpcb *inp,
                        struct sctp_tcb *stcb,
                        size_t limit,
                        struct sockaddr_storage *sas)
 {
 	size_t size = 0;
 #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 */
 	for (id = 0; (id < inp->num_vrfs) && (size < limit); id++) {
 		size += sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
 						   inp->m_vrf_ids[id]);
 		sas = (struct sockaddr_storage *)((caddr_t)sas + size);
 	}
 #else
 	/* fill up addresses for the endpoint's default vrf */
 	size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
 					  inp->def_vrf_id);
 #endif
 	SCTP_IPI_ADDR_RUNLOCK();
 	return (size);
 }
 /*
  * NOTE: assumes addr lock is held
  */
 static int
 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
 {
 	int cnt = 0;
 	struct sctp_vrf *vrf = NULL;
 	/*
 	 * In both sub-set bound an bound_all cases we return 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.
 	 */
 	vrf = sctp_find_vrf(vrf_id);
 	if (vrf == NULL) {
 		return (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:
 					if (sctp_is_feature_on(inp,SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 						cnt += sizeof(struct sockaddr_in6);
 					else
 						cnt += sizeof(struct sockaddr_in);
 					break;
 #endif
 #ifdef INET6
 				case AF_INET6:
 					cnt += sizeof(struct sockaddr_in6);
 					break;
 #endif
 #if defined(__Userspace__)
 				case AF_CONN:
 					cnt += 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:
 				if (sctp_is_feature_on(inp,SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
 					cnt += sizeof(struct sockaddr_in6);
 				else
 					cnt += sizeof(struct sockaddr_in);
 				break;
 #endif
 #ifdef INET6
 			case AF_INET6:
 				cnt += sizeof(struct sockaddr_in6);
 				break;
 #endif
 #if defined(__Userspace__)
 			case AF_CONN:
 				cnt += sizeof(struct sockaddr_conn);
 				break;
 #endif
 			default:
 				break;
 			}
 		}
 	}
 	return (cnt);
 }
 static int
 sctp_count_max_addresses(struct sctp_inpcb *inp)
 {
 	int cnt = 0;
 #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.
  */
 	/* count addresses for all VRFs on the endpoint */
 	for (id = 0; id < inp->num_vrfs; id++) {
 		cnt += sctp_count_max_addresses_vrf(inp, inp->m_vrf_ids[id]);
 	}
 #else
 	/* count addresses for the endpoint's default VRF */
 	cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
 #endif
 	SCTP_IPI_ADDR_RUNLOCK();
 	return (cnt);
 }
 static int
 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
 		  size_t optsize, void *p, int delay)
 {
 	int error = 0;
 	int creat_lock_on = 0;
 	struct sctp_tcb *stcb = NULL;
 	struct sockaddr *sa;
 	int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
 	uint32_t vrf_id;
 	int bad_addresses = 0;
 	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 = (int *)optval;
 	totaddr = *totaddrp;
 	sa = (struct sockaddr *)(totaddrp + 1);
 	stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
 	if ((stcb != NULL) || bad_addresses) {
 		/* Already have or am bring up an association */
 		SCTP_ASOC_CREATE_UNLOCK(inp);
 		creat_lock_on = 0;
 		if (stcb)
 			SCTP_TCB_UNLOCK(stcb);
 		if (bad_addresses == 0) {
 			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 			error = EALREADY;
 		}
 		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)) {
 		struct in6pcb *inp6;
 		inp6 = (struct in6pcb *)inp;
 		if (SCTP_IPV6_V6ONLY(inp6)) {
 			/*
 			 * 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) ==
 	    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(inp, sa, &error, 0, vrf_id,
 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 			       (struct thread *)p
 #elif defined(__Windows__)
 			       (PKTHREAD)p
 #else
 			       (struct proc *)p
 #endif
 		);
 	if (stcb == NULL) {
 		/* Gak! no memory */
 		goto out_now;
 	}
 	if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 		stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 		/* Set the connected flag so we can queue data */
 		soisconnecting(so);
 	}
 	SCTP_SET_STATE(&stcb->asoc, 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) {
 		(void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ+SCTP_LOC_6);
 		goto out_now;
 	}
 	a_id = (sctp_assoc_t *)optval;
 	*a_id = sctp_get_associd(stcb);
 	/* initialize authentication parameters for the assoc */
 	sctp_initialize_auth_params(inp, 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);
 	if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 		stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 		/* Set the connected flag so we can queue data */
 		soisconnecting(so);
 	}
  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(__Panda__) || 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 = TICKS_TO_SEC(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_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) ||
 			    (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) ||
 			    (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) ||
 			    (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 (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);
 		cnt = 0;
 		SCTP_INP_RLOCK(inp);
 		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;
 		unsigned int at, limit;
 		SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
 		at = 0;
 		limit = (*optsize-sizeof(uint32_t))/ sizeof(sctp_assoc_t);
 		SCTP_INP_RLOCK(inp);
 		LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 			if (at < limit) {
 				ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
 			} 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) ||
 			    (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;
 			*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) ||
 			    (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
 				SCTP_INP_RLOCK(inp);
 				sack->sack_delay = TICKS_TO_MSEC(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:
 	{
 #if defined(__FreeBSD__) && __FreeBSD_version < 900000
 		uint8_t *value;
 		SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize);
 		SCTP_INP_RLOCK(inp);
 		if (inp->sctp_ep.max_burst < 256) {
 			*value = inp->sctp_ep.max_burst;
 		} else {
 			*value = 255;
 		}
 		SCTP_INP_RUNLOCK(inp);
 		*optsize = sizeof(uint8_t);
 #else
 		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) ||
 			    (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);
 		}
 #endif
 		break;
 	}
 	case SCTP_MAXSEG:
 	{
 		struct sctp_assoc_value *av;
 		int ovh;
 		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
 		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 		if (stcb) {
 			av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
 			SCTP_TCB_UNLOCK(stcb);
 		} else {
 			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 			    (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 				SCTP_INP_RLOCK(inp);
 				if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 					ovh = SCTP_MED_OVERHEAD;
 				} else {
 					ovh = SCTP_MED_V4_OVERHEAD;
 				}
 				if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
 					av->assoc_value = 0;
 				else
 					av->assoc_value = inp->sctp_frag_point - ovh;
 				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 = sctp_count_max_addresses(inp);
 		SCTP_INP_RUNLOCK(inp);
 		*optsize = sizeof(uint32_t);
 		break;
 	}
 	case SCTP_GET_REMOTE_ADDR_SIZE:
 	{
 		uint32_t *value;
 		size_t size;
 		struct sctp_nets *net;
 		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) {
 			size = 0;
 			/* Count the sizes */
 			TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 				if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 					size += sizeof(struct sockaddr_in6);
 				} else {
 					switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
 #ifdef INET
 					case AF_INET:
 						size += sizeof(struct sockaddr_in);
 						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 {
 			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 			error = ENOTCONN;
 		}
 		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_storage *sas;
 		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) {
 			left = (*optsize) - sizeof(struct sctp_getaddresses);
 			*optsize = sizeof(struct sctp_getaddresses);
 			sas = (struct sockaddr_storage *)&saddr->addr[0];
 			TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 				if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
 					cpsz = sizeof(struct sockaddr_in6);
 				} else {
 					switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
 #ifdef INET
 					case AF_INET:
 						cpsz = sizeof(struct sockaddr_in);
 						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)) &&
 				    (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) {
 					/* Must map the address */
 					in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr,
 							    (struct sockaddr_in6 *)sas);
 				} else {
 #endif
 					memcpy(sas, &net->ro._l_addr, cpsz);
 #if defined(INET) && defined(INET6)
 				}
 #endif
 				((struct sockaddr_in *)sas)->sin_port = stcb->rport;
 				sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
 				left -= cpsz;
 				*optsize += cpsz;
 			}
 			SCTP_TCB_UNLOCK(stcb);
 		} else {
 		        SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 			error = ENOENT;
 		}
 		break;
 	}
 	case SCTP_GET_LOCAL_ADDRESSES:
 	{
 		size_t limit, actual;
 		struct sockaddr_storage *sas;
 		struct sctp_getaddresses *saddr;
 		SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
 		SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
 		sas = (struct sockaddr_storage *)&saddr->addr[0];
 		limit = *optsize - sizeof(sctp_assoc_t);
 		actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
 		if (stcb) {
 			SCTP_TCB_UNLOCK(stcb);
 		}
 		*optsize = sizeof(struct sockaddr_storage) + actual;
 		break;
 	}
 	case SCTP_PEER_ADDR_PARAMS:
 	{
 		struct sctp_paddrparams *paddrp;
 		struct sctp_nets *net;
 		SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
 		SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 		net = NULL;
 		if (stcb) {
 			net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
 		} 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, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL);
 			if (stcb == NULL) {
 				SCTP_INP_DECR_REF(inp);
 			}
 		}
 		if (stcb && (net == NULL)) {
 			struct sockaddr *sa;
 			sa = (struct sockaddr *)&paddrp->spp_address;
 #ifdef INET
 			if (sa->sa_family == AF_INET) {
 				struct sockaddr_in *sin;
 				sin = (struct sockaddr_in *)sa;
 				if (sin->sin_addr.s_addr) {
 					error = EINVAL;
 					SCTP_TCB_UNLOCK(stcb);
 					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 					break;
 				}
 			} else
 #endif
 #ifdef INET6
 			if (sa->sa_family == AF_INET6) {
 				struct sockaddr_in6 *sin6;
 				sin6 = (struct sockaddr_in6 *)sa;
 				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 (sa->sa_family == AF_CONN) {
 				struct sockaddr_conn *sconn;
 				sconn = (struct sockaddr_conn *)sa;
 				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) {
 			/* Applies to the specific association */
 			paddrp->spp_flags = 0;
 			if (net) {
 				int ovh;
 				if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 					ovh = SCTP_MED_OVERHEAD;
 				} else {
 					ovh = SCTP_MED_V4_OVERHEAD;
 				}
 				paddrp->spp_hbinterval = net->heart_beat_delay;
 				paddrp->spp_pathmaxrxt = net->failure_threshold;
 				paddrp->spp_pathmtu = net->mtu - ovh;
 				/* 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_ENABLE;
 				} else {
 					paddrp->spp_flags |= SPP_PMTUD_DISABLE;
 				}
 				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 = sctp_get_frag_point(stcb, &stcb->asoc);
 				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) ||
 			    (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 = TICKS_TO_MSEC(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
 				/* can't return this */
 				paddrp->spp_pathmtu = 0;
 				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;
 		SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
 		SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
 		net = NULL;
 		if (stcb) {
 			net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
 		} 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, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
 			if (stcb == NULL) {
 				SCTP_INP_DECR_REF(inp);
 			}
 		}
 		if ((stcb) && (net)) {
 			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;
 			SCTP_TCB_UNLOCK(stcb);
 			*optsize = sizeof(struct sctp_paddrinfo);
 		} else {
 			if (stcb) {
 				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;
 		}
 		/*
 		 * I think passing the state is fine since
 		 * sctp_constants.h will be available to the user
 		 * land.
 		 */
 		sstat->sstat_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, &stcb->asoc);
 #ifdef HAVE_SA_LEN
 		memcpy(&sstat->sstat_primary.spinfo_address,
 		       &stcb->asoc.primary_destination->ro._l_addr,
 		       ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
 #else
 		if (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family == AF_INET) {
 			memcpy(&sstat->sstat_primary.spinfo_address,
 			       &stcb->asoc.primary_destination->ro._l_addr,
 			       sizeof(struct sockaddr_in));
 		} else {
 			memcpy(&sstat->sstat_primary.spinfo_address,
 			       &stcb->asoc.primary_destination->ro._l_addr,
 			       sizeof(struct sockaddr_in6));
 		}
 #endif
 		net = stcb->asoc.primary_destination;
 		((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;
 		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) ||
 			    (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 = TICKS_TO_MSEC(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) ||
 			    (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
 				SCTP_INP_RLOCK(inp);
 				sasoc->sasoc_cookie_life = TICKS_TO_MSEC(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 = 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) ||
 			    (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) {
 			/* simply copy out the sockaddr_storage... */
 			size_t len;
 			len = *optsize;
 #ifdef HAVE_SA_LEN
 			if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
 				len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
 #else
 			if (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family == AF_INET &&
 			    len > sizeof(struct sockaddr_in))
 				len = sizeof(struct sockaddr_in);
 			else if (
 			    stcb->asoc.primary_destination->ro._l_addr.sa.sa_family == AF_INET6 &&
 			    len > sizeof(struct sockaddr_in6))
 				len = sizeof(struct sockaddr_in6);
 #endif
 			memcpy(&ssp->ssp_addr,
 			       &stcb->asoc.primary_destination->ro._l_addr,
 			       len);
 			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;
 		uint32_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 ((size_t)(*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) ||
 			    (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) ||
 			    (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);
 				SCTP_TCB_UNLOCK(stcb);
 			} else {
 				if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 				    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 				    (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 (error == 0) {
 			*optsize = sizeof(struct sctp_event);
 		}
 		break;
 	}
 	case SCTP_RECVRCVINFO:
 	{
 		int onoff;
 		if (*optsize < sizeof(int)) {
 			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 			error = EINVAL;
 		} else {
 			SCTP_INP_RLOCK(inp);
 			onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
 			SCTP_INP_RUNLOCK(inp);
 		}
 		if (error == 0) {
 			/* return the option value */
 			*(int *)optval = onoff;
 			*optsize = sizeof(int);
 		}
 		break;
 	}
 	case SCTP_RECVNXTINFO:
 	{
 		int onoff;
 		if (*optsize < sizeof(int)) {
 			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 			error = EINVAL;
 		} else {
 			SCTP_INP_RLOCK(inp);
 			onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
 			SCTP_INP_RUNLOCK(inp);
 		}
 		if (error == 0) {
 			/* return the option value */
 			*(int *)optval = onoff;
 			*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) ||
 			    (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) ||
 			    (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;
 		SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
 		SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
 		net = NULL;
 		if (stcb) {
 			net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_address);
 		} 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, (struct sockaddr *)&thlds->spt_address, &net, NULL, NULL);
 			if (stcb == NULL) {
 				SCTP_INP_DECR_REF(inp);
 			}
 		}
 		if (stcb && (net == NULL)) {
 			struct sockaddr *sa;
 			sa = (struct sockaddr *)&thlds->spt_address;
 #ifdef INET
 			if (sa->sa_family == AF_INET) {
 				struct sockaddr_in *sin;
 				sin = (struct sockaddr_in *)sa;
 				if (sin->sin_addr.s_addr) {
 					error = EINVAL;
 					SCTP_TCB_UNLOCK(stcb);
 					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 					break;
 				}
 			} else
 #endif
 #ifdef INET6
 			if (sa->sa_family == AF_INET6) {
 				struct sockaddr_in6 *sin6;
 				sin6 = (struct sockaddr_in6 *)sa;
 				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 (sa->sa_family == AF_CONN) {
 				struct sockaddr_conn *sconn;
 				sconn = (struct sockaddr_conn *)sa;
 				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) {
 			if (net) {
 				thlds->spt_pathmaxrxt = net->failure_threshold;
 				thlds->spt_pathpfthld = net->pf_threshold;
 			} else {
 				thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
 				thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
 			}
 			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) ||
 			    (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;
 				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;
 		SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
 		SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
 		if (stcb) {
 			net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
 		} 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, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
 			if (stcb == NULL) {
 				SCTP_INP_DECR_REF(inp);
 			}
 		}
 		if (stcb && (net == NULL)) {
 			struct sockaddr *sa;
 			sa = (struct sockaddr *)&encaps->sue_address;
 #ifdef INET
 			if (sa->sa_family == AF_INET) {
 				struct sockaddr_in *sin;
 				sin = (struct sockaddr_in *)sa;
 				if (sin->sin_addr.s_addr) {
 					error = EINVAL;
 					SCTP_TCB_UNLOCK(stcb);
 					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
 					break;
 				}
 			} else
 #endif
 #ifdef INET6
 			if (sa->sa_family == AF_INET6) {
 				struct sockaddr_in6 *sin6;
 				sin6 = (struct sockaddr_in6 *)sa;
 				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 (sa->sa_family == AF_CONN) {
 				struct sockaddr_conn *sconn;
 				sconn = (struct sockaddr_conn *)sa;
 				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) {
 			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) ||
 			    (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_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) ||
 			    (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;
 	}
 	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(__Panda__) || 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_PRINTF("optval is NULL\n");
 		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_PRINTF("inp is NULL?\n");
 		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 = SEC_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_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) ||
 				    (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 ((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) ||
 			    (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 ((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 (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, 1, 1);
 			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, 1);
 			SCTP_TCB_UNLOCK(stcb);
 		} else {
 			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 			    (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 ((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, 1, 1);
 					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, 1);
 					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 (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 (av->assoc_id == SCTP_CURRENT_ASSOC) {
 				SCTP_INP_RLOCK(inp);
 				LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 					SCTP_TCB_LOCK(stcb);
 					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) ||
 			    (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 ((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)
 				sack->sack_delay = SCTP_MAX_SACK_DELAY;
 			if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
 				sack->sack_delay = TICKS_TO_MSEC(1);
 			}
 		}
 		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) ||
 			    (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] = MSEC_TO_TICKS(sack->sack_delay);
 				}
 				if (sack->sack_freq) {
 					inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
 				}
 				SCTP_INP_WUNLOCK(inp);
 			}
 			if ((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;
 		}
 		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) ||
 			    (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 ((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)) {
 			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 			error = EINVAL;
 			break;
 		}
 		hmaclist = sctp_alloc_hmaclist(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) ||
 			    (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 ((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) ||
 			    (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 ((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) ||
 			    (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 ((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) ||
 			    (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 ((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.peer_supports_strreset == 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 (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_INCOMING) {
 			send_in = 1;
 		}
 		if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
 			send_out = 1;
 		}
 		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;
 		}
 		error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
 						strrst->srs_stream_list,
 						send_out, send_in, 0, 0, 0, 0, 0);
 		sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
 		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.peer_supports_strreset == 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 (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, 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:
 	{
 		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.peer_supports_strreset == 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 (stcb->asoc.stream_reset_outstanding) {
 			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
 			error = EALREADY;
 			SCTP_TCB_UNLOCK(stcb);
 			break;
 		}
 		error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 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;
 		struct sctp_nets *net;
 		/* 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);
 				net = sctp_findnet(stcb, sa);
 			}
 			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, &net, 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_9);
 			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:
 	{
 #if defined(__FreeBSD__) && __FreeBSD_version < 900000
 		uint8_t *burst;
 		SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize);
 		SCTP_INP_WLOCK(inp);
 		inp->sctp_ep.max_burst = *burst;
 		SCTP_INP_WUNLOCK(inp);
 #else
 		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) ||
 			    (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 ((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);
 			}
 		}
 #endif
 		break;
 	}
 	case SCTP_MAXSEG:
 	{
 		struct sctp_assoc_value *av;
 		int ovh;
 		SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
 		SCTP_FIND_STCB(inp, stcb, av->assoc_id);
 		if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 			ovh = SCTP_MED_OVERHEAD;
 		} else {
 			ovh = SCTP_MED_V4_OVERHEAD;
 		}
 		if (stcb) {
 			if (av->assoc_value) {
 				stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
 			} else {
 				stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 			}
 			SCTP_TCB_UNLOCK(stcb);
 		} else {
 			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 			    (av->assoc_id == SCTP_FUTURE_ASSOC)) {
 				SCTP_INP_WLOCK(inp);
 				/* FIXME MT: I think this is not in tune with the API ID */
 				if (av->assoc_value) {
 					inp->sctp_frag_point = (av->assoc_value + ovh);
 				} else {
 					inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
 				}
 				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);
 		}
 		SCTP_INP_WUNLOCK(inp);
 		SCTP_INP_RLOCK(inp);
 		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) ||
 			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 				stcb = LIST_FIRST(&inp->sctp_asoc_list);
 				if (stcb) {
 					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_RUNLOCK(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) ||
 			    (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 ((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;
 		SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
 		SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
 		net = NULL;
 		if (stcb) {
 			net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
 		} 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,
 							    (struct sockaddr *)&paddrp->spp_address,
 							    &net, NULL, NULL);
 			if (stcb == NULL) {
 				SCTP_INP_DECR_REF(inp);
 			}
 		}
 		if (stcb && (net == NULL)) {
 			struct sockaddr *sa;
 			sa = (struct sockaddr *)&paddrp->spp_address;
 #ifdef INET
 			if (sa->sa_family == AF_INET) {
 				struct sockaddr_in *sin;
 				sin = (struct sockaddr_in *)sa;
 				if (sin->sin_addr.s_addr) {
 					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 					SCTP_TCB_UNLOCK(stcb);
 					error = EINVAL;
 					break;
 				}
 			} else
 #endif
 #ifdef INET6
 			if (sa->sa_family == AF_INET6) {
 				struct sockaddr_in6 *sin6;
 				sin6 = (struct sockaddr_in6 *)sa;
 				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 (sa->sa_family == AF_CONN) {
 				struct sockaddr_conn *sconn;
 				sconn = (struct sockaddr_conn *)sa;
 				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 (stcb) {
 			/************************TCB SPECIFIC SET ******************/
 			/*
 			 * do we change the timer for HB, we run
 			 * only one?
 			 */
 			int ovh = 0;
 			if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 				ovh = SCTP_MED_OVERHEAD;
 			} else {
 				ovh = SCTP_MED_V4_OVERHEAD;
 			}
 			/* network sets ? */
 			if (net) {
 				/************************NET SPECIFIC SET ******************/
 				if (paddrp->spp_flags & SPP_HB_DISABLE) {
 					if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
 					    !(net->dest_state & SCTP_ADDR_NOHB)) {
 						sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
 								SCTP_FROM_SCTP_USRREQ+SCTP_LOC_10);
 					}
 					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) {
 					/* on demand HB */
 					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) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
 					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_10);
 					}
 					net->dest_state |= SCTP_ADDR_NO_PMTUD;
 					net->mtu = paddrp->spp_pathmtu + ovh;
 					if (net->mtu < stcb->asoc.smallest_mtu) {
 						sctp_pathmtu_adjustment(stcb, net->mtu);
 					}
 				}
 				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) {
 					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_TIMER + SCTP_LOC_3);
 							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) {
 					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_TIMER + SCTP_LOC_3);
 								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) {
 						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) {
 							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_10);
 						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)) {
 							net->dest_state |= SCTP_ADDR_NOHB;
 							if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
 								sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ+SCTP_LOC_10);
 							}
 						}
 					}
 					sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
 				}
 				if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
 					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_10);
 						}
 						net->dest_state |= SCTP_ADDR_NO_PMTUD;
 						net->mtu = paddrp->spp_pathmtu + ovh;
 						if (net->mtu < stcb->asoc.smallest_mtu) {
 							sctp_pathmtu_adjustment(stcb, net->mtu);
 						}
 					}
 					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;
 					}
 					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) ||
 			    (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) {
 					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) {
 					if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
 						paddrp->spp_hbinterval= SCTP_MAX_HB_INTERVAL;
 					inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_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] = MSEC_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) {
 					sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
 				} else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
 					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) ||
 			    (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) {
 			/* boundary check the cookie life */
 			if (sasoc->sasoc_cookie_life < 1000)
 				sasoc->sasoc_cookie_life = 1000;
 			if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
 				sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
 			}
 		}
 		if (stcb) {
 			if (sasoc->sasoc_asocmaxrxt)
 				stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
 			if (sasoc->sasoc_cookie_life) {
 				stcb->asoc.cookie_life = MSEC_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) ||
 			    (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
 				SCTP_INP_WLOCK(inp);
 				if (sasoc->sasoc_asocmaxrxt)
 					inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
 				if (sasoc->sasoc_cookie_life) {
 					inp->sctp_ep.def_cookie_life = MSEC_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;
 		SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
 		SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
 		net = NULL;
 		if (stcb) {
 			net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_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.
 			 */
 			SCTP_INP_INCR_REF(inp);
 			stcb = sctp_findassociation_ep_addr(&inp,
 							    (struct sockaddr *)&spa->ssp_addr,
 							    &net, NULL, NULL);
 			if (stcb == NULL) {
 				SCTP_INP_DECR_REF(inp);
 			}
 		}
 		if ((stcb) && (net)) {
 			if ((net != stcb->asoc.primary_destination) &&
 			    (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
 				/* 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)) &&
 					    (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;
 		}
 		if (stcb) {
 			SCTP_TCB_UNLOCK(stcb);
 		}
 		break;
 	}
 	case SCTP_SET_DYNAMIC_PRIMARY:
 	{
 		union sctp_sockstore *ss;
 #ifdef SCTP_MVRF
 		int i, fnd = 0;
 #endif
 #if !defined(__Windows__) && !defined(__Userspace__)
 #if defined(__APPLE__)
 		struct proc *proc;
 #endif
 #ifdef __FreeBSD__
 #if __FreeBSD_version > 602000
 		error = priv_check(curthread,
 				   PRIV_NETINET_RESERVEDPORT);
 #elif __FreeBSD_version >= 500000
 		error = suser((struct thread *)p);
 #else
 		error = suser(p);
 #endif
 #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
 #endif
 		if (error)
 			break;
 		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;
 		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;
 			ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_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",
 							__FUNCTION__);
 						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 (sctp_set_primary_ip_address_sa(stcb,
 							   (struct sockaddr *)&sspp->sspp_addr) != 0) {
 				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 				error = EINVAL;
 			}
 		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 sctp_getaddresses *addrs;
 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 		struct thread *td;
 		td = (struct thread *)p;
 #endif
 		SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
 				    optsize);
 #ifdef INET
 		if (addrs->addr->sa_family == AF_INET) {
 			if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
 				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 				error = EINVAL;
 				break;
 			}
 #if defined(__FreeBSD__) && __FreeBSD_version >= 800000
 			if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
 				SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 				break;
 			}
 #endif
 		} else
 #endif
 #ifdef INET6
 		if (addrs->addr->sa_family == AF_INET6) {
 			if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
 				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 				error = EINVAL;
 				break;
 			}
 #if defined(__FreeBSD__) && __FreeBSD_version >= 800000
 			if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->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, addrs->addr,
 				       addrs->sget_assoc_id, vrf_id,
 				       &error, p);
 		break;
 	}
 	case SCTP_BINDX_REM_ADDR:
 	{
 		struct sctp_getaddresses *addrs;
 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 		struct thread *td;
 		td = (struct thread *)p;
 #endif
 		SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
 #ifdef INET
 		if (addrs->addr->sa_family == AF_INET) {
 			if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
 				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 				error = EINVAL;
 				break;
 			}
 #if defined(__FreeBSD__) && __FreeBSD_version >= 800000
 		if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
 				SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
 				break;
 			}
 #endif
 		} else
 #endif
 #ifdef INET6
 		if (addrs->addr->sa_family == AF_INET6) {
 			if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
 				SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 				error = EINVAL;
 				break;
 			}
 #if defined(__FreeBSD__) && __FreeBSD_version >= 800000
 			if (td != NULL &&
 			    (error = prison_local_ip6(td->td_ucred,
 			                              &(((struct sockaddr_in6 *)(addrs->addr))->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, addrs->addr,
 					  addrs->sget_assoc_id, vrf_id,
 					  &error);
 		break;
 	}
 #ifdef __APPLE__
 	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				/* __APPLE__ */
 	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_TCPTYPE) == 0) &&
 				    ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
 				    ((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) ||
 				    (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 ((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);
 				}
 			}
 		}
 		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) ||
 			    (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 ((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 (PR_SCTP_INVALID_POLICY(info->pr_policy)) {
 			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) ||
 			    (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 ((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;
 		SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
 		SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
 		net = NULL;
 		if (stcb) {
 			net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_assoc_id);
 		} 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,
 							    (struct sockaddr *)&thlds->spt_assoc_id,
 							    &net, NULL, NULL);
 			if (stcb == NULL) {
 				SCTP_INP_DECR_REF(inp);
 			}
 		}
 		if (stcb && (net == NULL)) {
 			struct sockaddr *sa;
 			sa = (struct sockaddr *)&thlds->spt_assoc_id;
 #ifdef INET
 			if (sa->sa_family == AF_INET) {
 				struct sockaddr_in *sin;
 				sin = (struct sockaddr_in *)sa;
 				if (sin->sin_addr.s_addr) {
 					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 					SCTP_TCB_UNLOCK(stcb);
 					error = EINVAL;
 					break;
 				}
 			} else
 #endif
 #ifdef INET6
 			if (sa->sa_family == AF_INET6) {
 				struct sockaddr_in6 *sin6;
 				sin6 = (struct sockaddr_in6 *)sa;
 				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 (sa->sa_family == AF_CONN) {
 				struct sockaddr_conn *sconn;
 				sconn = (struct sockaddr_conn *)sa;
 				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) {
 			if (net) {
 				if (net->dest_state & SCTP_ADDR_PF) {
 					if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
 					    (net->failure_threshold <= thlds->spt_pathpfthld)) {
 						net->dest_state &= ~SCTP_ADDR_PF;
 					}
 				} else {
 					if ((net->failure_threshold > thlds->spt_pathpfthld) &&
 					    (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
 					    	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_TIMER + SCTP_LOC_3);
 						sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 					}
 				}
 				if (net->dest_state & SCTP_ADDR_REACHABLE) {
 					if (net->failure_threshold > thlds->spt_pathmaxrxt) {
 						net->dest_state &= ~SCTP_ADDR_REACHABLE;
 						sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 					}
 				} else {
 					if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
 						net->dest_state |= SCTP_ADDR_REACHABLE;
 						sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 					}
 				}
 				net->failure_threshold = thlds->spt_pathmaxrxt;
 				net->pf_threshold = thlds->spt_pathpfthld;
 			} else {
 				TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
 					if (net->dest_state & SCTP_ADDR_PF) {
 						if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
 						    (net->failure_threshold <= thlds->spt_pathpfthld)) {
 							net->dest_state &= ~SCTP_ADDR_PF;
 						}
 					} else {
 						if ((net->failure_threshold > thlds->spt_pathpfthld) &&
 						    (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
 						    	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_TIMER + SCTP_LOC_3);
 							sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
 						}
 					}
 					if (net->dest_state & SCTP_ADDR_REACHABLE) {
 						if (net->failure_threshold > thlds->spt_pathmaxrxt) {
 							net->dest_state &= ~SCTP_ADDR_REACHABLE;
 							sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
 						}
 					} else {
 						if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
 							net->dest_state |= SCTP_ADDR_REACHABLE;
 							sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
 						}
 					}
 					net->failure_threshold = thlds->spt_pathmaxrxt;
 					net->pf_threshold = thlds->spt_pathpfthld;
 				}
 				stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
 				stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
 			}
 		} else {
 			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
 			    (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;
 		SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
 		SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
 		if (stcb) {
 			net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
 		} 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, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
 			if (stcb == NULL) {
 				SCTP_INP_DECR_REF(inp);
 			}
 		}
 		if (stcb && (net == NULL)) {
 			struct sockaddr *sa;
 			sa = (struct sockaddr *)&encaps->sue_address;
 #ifdef INET
 			if (sa->sa_family == AF_INET) {
 				struct sockaddr_in *sin;
 				sin = (struct sockaddr_in *)sa;
 				if (sin->sin_addr.s_addr) {
 					SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 					SCTP_TCB_UNLOCK(stcb);
 					error = EINVAL;
 					break;
 				}
 			} else
 #endif
 #ifdef INET6
 			if (sa->sa_family == AF_INET6) {
 				struct sockaddr_in6 *sin6;
 				sin6 = (struct sockaddr_in6 *)sa;
 				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 (sa->sa_family == AF_CONN) {
 				struct sockaddr_conn *sconn;
 				sconn = (struct sockaddr_conn *)sa;
 				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) {
 			if (net) {
 				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) ||
 			    (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;
 	}
 	default:
 		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
 		error = ENOPROTOOPT;
 		break;
 	} /* end switch (opt) */
 	return (error);
 }
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 int
 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
 {
 	void *optval = NULL;
 	size_t optsize = 0;
 	void *p;
 	int error = 0;
 	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_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__) && __FreeBSD_version >= 500000) || defined(__Windows__)
 	p = (void *)sopt->sopt_td;
 #else
 	p = (void *)sopt->sopt_p;
 #endif
 	if (sopt->sopt_dir == SOPT_SET) {
 		error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
 	} 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(__FreeBSD__) && __FreeBSD_version >= 500000
 static int
 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
 {
 #else
 #if defined(__FreeBSD__) || defined(__APPLE__)
 static int
 sctp_connect(struct socket *so, struct sockaddr *addr, struct proc *p)
 {
 #elif defined(__Panda__) || defined(__Userspace__)
 int
 sctp_connect(struct socket *so, struct sockaddr *addr)
 {
 	void *p = NULL;
 #elif defined(__Windows__)
 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
 #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(__Windows__) && !defined(__Userspace_os_Linux) && !defined(__Userspace_os_Windows)
 	switch (addr->sa_family) {
 #ifdef INET6
 	case AF_INET6:
 	{
 #if defined(__FreeBSD__) && __FreeBSD_version >= 800000
 		struct sockaddr_in6 *sin6p;
 #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__) && __FreeBSD_version >= 800000
 		sin6p = (struct sockaddr_in6 *)addr;
 		if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->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__) && __FreeBSD_version >= 800000
 		struct sockaddr_in *sinp;
 #endif
 #if !defined(__Userspace_os_Windows)
 		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__) && __FreeBSD_version >= 800000
 		sinp = (struct sockaddr_in *)addr;
 		if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->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 ((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) ==
 	    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(inp, addr, &error, 0, vrf_id, p);
 	if (stcb == NULL) {
 		/* Gak! no memory */
 		goto out_now;
 	}
 	if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 		stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 		/* Set the connected flag so we can queue data */
 		soisconnecting(so);
 	}
 	SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
 	(void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 	/* initialize authentication parameters for the assoc */
 	sctp_initialize_auth_params(inp, stcb);
 	sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 	SCTP_TCB_UNLOCK(stcb);
  out_now:
 	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) == 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(inp, addr, &error, 0, vrf_id, p);
 	if (stcb == NULL) {
 		/* Gak! no memory */
 		goto out_now;
 	}
 	if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
 		stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
 		/* Set the connected flag so we can queue data */
 		soisconnecting(so);
 	}
 	SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
 	(void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
 	/* initialize authentication parameters for the assoc */
 	sctp_initialize_auth_params(inp, stcb);
 	sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 	SCTP_TCB_UNLOCK(stcb);
  out_now:
 	if (create_lock_on) {
 		SCTP_ASOC_CREATE_UNLOCK(inp);
 	}
 	SCTP_INP_DECR_REF(inp);
 	return (error);
 }
 #endif
 int
 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
 #if __FreeBSD_version >= 700000
 sctp_listen(struct socket *so, int backlog, struct thread *p)
 #else
 sctp_listen(struct socket *so, struct thread *p)
 #endif
 #elif defined(__Windows__)
 sctp_listen(struct socket *so, int backlog, PKTHREAD p)
 #elif defined(__Userspace__)
 sctp_listen(struct socket *so, int backlog, struct proc *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, *sp;
 		sp = &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 (sp->sa.sa_family) {
 #ifdef INET
 				case AF_INET:
 					sp->sin.sin_port = inp->sctp_lport;
 					break;
 #endif
 #ifdef INET6
 				case AF_INET6:
 					sp->sin6.sin6_port = inp->sctp_lport;
 					break;
 #endif
 #if defined(__Userspace__)
 				case AF_CONN:
 					sp->sconn.sconn_port = inp->sctp_lport;
 					break;
 #endif
 				default:
 					break;
 				}
 				tinp = sctp_pcb_findep(&sp->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) &&
 				    (tinp->sctp_socket->so_qlimit)) {
 					/* 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));
 			switch (sp->sa.sa_family) {
 #ifdef INET
 			case AF_INET:
 				store.sin.sin_port = inp->sctp_lport;
 				break;
 #endif
 #ifdef INET6
 			case AF_INET6:
 				sp->sin6.sin6_port = inp->sctp_lport;
 				break;
 #endif
 #if defined(__Userspace__)
 			case AF_CONN:
 				sp->sconn.sconn_port = inp->sctp_lport;
 				break;
 #endif
 			default:
 				break;
 			}
 #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
 #ifdef INET
 			if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
 				store.sa.sa_family = AF_INET;
 #ifdef HAVE_SA_LEN
 				store.sa.sa_len = sizeof(struct sockaddr_in);
 #endif
 			}
 #endif
 			tinp = sctp_pcb_findep(&sp->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) &&
 			    (tinp->sctp_socket->so_qlimit)) {
 				/* we have a listener already and its not this inp. */
 				SCTP_INP_DECR_REF(tinp);
 				return (EADDRINUSE);
 			} else if (tinp) {
 				SCTP_INP_DECR_REF(inp);
 			}
 		}
 	}
 	SCTP_INP_RLOCK(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
 	SOCK_LOCK(so);
 #if (defined(__FreeBSD__) && __FreeBSD_version > 500000) || defined(__Userspace__)
 	error = solisten_proto_check(so);
 	if (error) {
 		SOCK_UNLOCK(so);
 		SCTP_INP_RUNLOCK(inp);
 		return (error);
 	}
 #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)) {
 			goto in_use;
 		}
 	}
 	if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
 	    (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
 		/* We are already connected AND the TCP model */
 	in_use:
 		SCTP_INP_RUNLOCK(inp);
 		SOCK_UNLOCK(so);
 		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
 		return (EADDRINUSE);
 	}
 	SCTP_INP_RUNLOCK(inp);
 	if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
 		/* We must do a bind. */
 		SOCK_UNLOCK(so);
 		if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
 			/* bind error, probably perm */
 			return (error);
 		}
 		SOCK_LOCK(so);
 	}
 #if (defined(__FreeBSD__) && __FreeBSD_version > 500000) || defined(__Windows__) || defined(__Userspace__)
 #if __FreeBSD_version >= 700000 || defined(__Windows__) || defined(__Userspace__)
 	/* It appears for 7.0 and on, we must always call this. */
 	solisten_proto(so, backlog);
 #else
 	if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
 		solisten_proto(so);
 	}
 #endif
 #endif
 	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
 	}
 #if __FreeBSD_version >= 700000 || defined(__Windows__) || defined(__Userspace__)
 	if (backlog == 0) {
 		/* turning off listen */
 #if defined(__Userspace__)
 		so->so_options &= ~SCTP_SO_ACCEPTCONN;
 #else
 		so->so_options &= ~SO_ACCEPTCONN;
 #endif
 	}
 #endif
 	SOCK_UNLOCK(so);
 	return (error);
 }
 static int sctp_defered_wakeup_cnt = 0;
 int
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__) || defined(__Userspace__)
 sctp_accept(struct socket *so, struct sockaddr **addr)
 {
 #elif defined(__Panda__)
 sctp_accept(struct socket *so, struct sockaddr *addr, int *namelen,
 	    void *accept_info, int *accept_info_len)
 {
 #else
 sctp_accept(struct socket *so, struct mbuf *nam)
 {
 	struct sockaddr *addr = mtod(nam, struct sockaddr *);
 #endif
 	struct sctp_tcb *stcb;
 	struct sctp_inpcb *inp;
 	union sctp_sockstore store;
 #ifdef INET6
 #ifdef SCTP_KAME
 	int error;
 #endif /* SCTP_KAME */
 #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_RLOCK(inp);
 	if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 		SCTP_INP_RUNLOCK(inp);
 		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 		return (EOPNOTSUPP);
 	}
 	if (so->so_state & SS_ISDISCONNECTED) {
 		SCTP_INP_RUNLOCK(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_RUNLOCK(inp);
 		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 		return (ECONNRESET);
 	}
 	SCTP_TCB_LOCK(stcb);
 	SCTP_INP_RUNLOCK(inp);
 	store = stcb->asoc.primary_destination->ro._l_addr;
 	stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
 	SCTP_TCB_UNLOCK(stcb);
 	switch (store.sa.sa_family) {
 #ifdef INET
 	case AF_INET:
 	{
 		struct sockaddr_in *sin;
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__) || defined(__Userspace__)
 		SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 		if (sin == NULL)
 			return (ENOMEM);
 #else
 		sin = (struct sockaddr_in *)addr;
 		bzero((caddr_t)sin, sizeof(*sin));
 #endif
 		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;
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__) || defined(__Userspace__)
 		*addr = (struct sockaddr *)sin;
 #elif !defined(__Panda__)
 		SCTP_BUF_LEN(nam) = sizeof(*sin);
 #endif
 		break;
 	}
 #endif
 #ifdef INET6
 	case AF_INET6:
 	{
 		struct sockaddr_in6 *sin6;
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__) || defined(__Userspace__)
 		SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
 		if (sin6 == NULL)
 			return (ENOMEM);
 #else
 		sin6 = (struct sockaddr_in6 *)addr;
 		bzero((caddr_t)sin6, sizeof(*sin6));
 #endif
 		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 */
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__) || defined(__Userspace__)
 		*addr = (struct sockaddr *)sin6;
 #elif !defined(__Panda__)
 		SCTP_BUF_LEN(nam) = sizeof(*sin6);
 #endif
 		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;
 	}
 	/* Wake any delayed sleep action */
 	if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
 		SCTP_INP_WLOCK(inp);
 		inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
 		if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
 			inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
 			SCTP_INP_WUNLOCK(inp);
 			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(__Windows__) || 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);
 			}
 			SCTP_INP_WLOCK(inp);
 		}
 		if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
 			inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
 			SCTP_INP_WUNLOCK(inp);
 			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(__Windows__) || 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_WLOCK(inp);
 		}
 		SCTP_INP_WUNLOCK(inp);
 	}
 	if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 		SCTP_TCB_LOCK(stcb);
 		sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ+SCTP_LOC_7);
 	}
 	return (0);
 }
 #ifdef INET
 int
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
 {
 	struct sockaddr_in *sin;
 #elif defined(__Panda__)
 sctp_ingetaddr(struct socket *so, struct sockaddr *addr)
 {
 	struct sockaddr_in *sin = (struct sockaddr_in *)addr;
 #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(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 	SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 	if (sin == NULL)
 		return (ENOMEM);
 #elif defined(__Panda__)
 	bzero(sin, sizeof(*sin));
 #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(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 		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 = (struct sockaddr_in *)&laddr->ifa->address.sa;
 				sin->sin_addr = sin_a->sin_addr;
 				fnd = 1;
 				break;
 			}
 		}
 		if (!fnd) {
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 			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(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 	(*addr) = (struct sockaddr *)sin;
 #endif
 	return (0);
 }
 int
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
 {
 	struct sockaddr_in *sin;
 #elif defined(__Panda__)
 sctp_peeraddr(struct socket *so, struct sockaddr *addr)
 {
 	struct sockaddr_in *sin = (struct sockaddr_in *)addr;
 #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(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 	SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
 	if (sin == NULL)
 		return (ENOMEM);
 #elif defined(__Panda__)
 	memset(sin, 0, sizeof(*sin));
 #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(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 		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(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 		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(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 		SCTP_FREE_SONAME(sin);
 #endif
 		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 		return (ENOENT);
 	}
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 	(*addr) = (struct sockaddr *)sin;
 #endif
 	return (0);
 }
 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Windows__)
 struct pr_usrreqs sctp_usrreqs = {
 #if defined(__FreeBSD__)
 	.pru_abort = sctp_abort,
 	.pru_accept = sctp_accept,
 	.pru_attach = sctp_attach,
 	.pru_bind = sctp_bind,
 	.pru_connect = sctp_connect,
 	.pru_control = in_control,
 #if __FreeBSD_version >= 690000
 	.pru_close = sctp_close,
 	.pru_detach = sctp_close,
 	.pru_sopoll = sopoll_generic,
 	.pru_flush = sctp_flush,
 #else
 	.pru_detach = sctp_detach,
 	.pru_sopoll = sopoll,
 #endif
 	.pru_disconnect = sctp_disconnect,
 	.pru_listen = sctp_listen,
 	.pru_peeraddr = sctp_peeraddr,
 	.pru_send = sctp_sendm,
 	.pru_shutdown = sctp_shutdown,
 	.pru_sockaddr = sctp_ingetaddr,
 	.pru_sosend = sctp_sosend,
 	.pru_soreceive = sctp_soreceive
 #elif 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(__Windows__)
 	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
 };
 #elif !defined(__Panda__) && !defined(__Userspace__)
 int
 sctp_usrreq(so, req, m, nam, control)
 	struct socket *so;
 	int req;
 	struct mbuf *m, *nam, *control;
 {
 	struct proc *p = curproc;
 	uint32_t vrf_id;
 	struct sctp_vrf *vrf;
 	int error;
 	int family;
 	struct sctp_inpcb *inp = (struct sctp_inpcb *)so->so_pcb;
 	error = 0;
 	family = so->so_proto->pr_domain->dom_family;
 	if (req == PRU_CONTROL) {
 		switch (family) {
 		case PF_INET:
 			error = in_control(so, (long)m, (caddr_t)nam,
 			    (struct ifnet *)control);
 			break;
 #ifdef INET6
 		case PF_INET6:
 			error = in6_control(so, (long)m, (caddr_t)nam,
 			    (struct ifnet *)control, p);
 			break;
 #endif
 		default:
 			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 			error = EAFNOSUPPORT;
 		}
 		return (error);
 	}
 	switch (req) {
 	case PRU_ATTACH:
 		error = sctp_attach(so, family, p);
 		break;
 	case PRU_DETACH:
 		error = sctp_detach(so);
 		break;
 	case PRU_BIND:
 		if (nam == NULL) {
 			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 			return (EINVAL);
 		}
 		error = sctp_bind(so, nam, p);
 		break;
 	case PRU_LISTEN:
 		error = sctp_listen(so, p);
 		break;
 	case PRU_CONNECT:
 		if (nam == NULL) {
 			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 			return (EINVAL);
 		}
 		error = sctp_connect(so, nam, p);
 		break;
 	case PRU_DISCONNECT:
 		error = sctp_disconnect(so);
 		break;
 	case PRU_ACCEPT:
 		if (nam == NULL) {
 			SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 			return (EINVAL);
 		}
 		error = sctp_accept(so, nam);
 		break;
 	case PRU_SHUTDOWN:
 		error = sctp_shutdown(so);
 		break;
 	case PRU_RCVD:
 		/*
 		 * For Open and Net BSD, this is real ugly. The mbuf *nam
 		 * that is passed (by soreceive()) is the int flags c ast as
 		 * a (mbuf *) yuck!
 		 */
 		break;
 	case PRU_SEND:
 		/* Flags are ignored */
 		{
 			struct sockaddr *addr;
 			if (nam == NULL)
 				addr = NULL;
 			else
 				addr = mtod(nam, struct sockaddr *);
 			error = sctp_sendm(so, 0, m, addr, control, p);
 		}
 		break;
 	case PRU_ABORT:
 		error = sctp_abort(so);
 		break;
 	case PRU_SENSE:
 		error = 0;
 		break;
 	case PRU_RCVOOB:
 		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 		error = EAFNOSUPPORT;
 		break;
 	case PRU_SENDOOB:
 		SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 		error = EAFNOSUPPORT;
 		break;
 	case PRU_PEERADDR:
 		error = sctp_peeraddr(so, nam);
 		break;
 	case PRU_SOCKADDR:
 		error = sctp_ingetaddr(so, nam);
 		break;
 	case PRU_SLOWTIMO:
 		error = 0;
 		break;
 	default:
 		break;
 	}
 	return (error);
 }
 #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))
 {
 	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);
 }
 #endif

The Tor Browser / annotate

netwerk/sctp/src/netinet/sctp_usrreq.c@4ab42b5ab56c (annotated)

netwerk/sctp/src/netinet/sctp_usrreq.c