From 5afa9bb664e9577520c00e00d50454e8b9b1043f Mon Sep 17 00:00:00 2001
From: Michael Tuexen <tuexen@fh-muenster.de>
Date: Thu, 20 Feb 2020 13:02:13 +0100
Subject: [PATCH 1/8] Only join threads which are actually started.

This should fix https://github.com/sctplab/usrsctp/issues/435.
---
 usrsctplib/netinet/sctp_bsd_addr.c |  2 ++
 usrsctplib/netinet/sctp_callout.c  |  2 ++
 usrsctplib/netinet/sctp_pcb.c      |  6 ++++++
 usrsctplib/netinet/sctp_pcb.h      |  2 ++
 usrsctplib/netinet/sctp_usrreq.c   | 13 +++++++++----
 5 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/usrsctplib/netinet/sctp_bsd_addr.c b/usrsctplib/netinet/sctp_bsd_addr.c
index 8547f447c..dc159b5c1 100755
--- a/usrsctplib/netinet/sctp_bsd_addr.c
+++ b/usrsctplib/netinet/sctp_bsd_addr.c
@@ -203,6 +203,8 @@ sctp_startup_iterator(void)
 #elif defined(__Userspace__)
 	if (sctp_userspace_thread_create(&sctp_it_ctl.thread_proc, &sctp_iterator_thread)) {
 		SCTP_PRINTF("ERROR: Creating sctp_iterator_thread failed.\n");
+	} else {
+		SCTP_BASE_VAR(iterator_thread_started) = 1;
 	}
 #endif
 }
diff --git a/usrsctplib/netinet/sctp_callout.c b/usrsctplib/netinet/sctp_callout.c
index ed1a4d6d4..681cad285 100755
--- a/usrsctplib/netinet/sctp_callout.c
+++ b/usrsctplib/netinet/sctp_callout.c
@@ -227,6 +227,8 @@ sctp_start_timer(void)
 	rc = sctp_userspace_thread_create(&SCTP_BASE_VAR(timer_thread), user_sctp_timer_iterate);
 	if (rc) {
 		SCTP_PRINTF("ERROR; return code from sctp_thread_create() is %d\n", rc);
+	} else {
+		SCTP_BASE_VAR(timer_thread_started) = 1;
 	}
 }
 
diff --git a/usrsctplib/netinet/sctp_pcb.c b/usrsctplib/netinet/sctp_pcb.c
index 3cc565d08..f67e2643e 100755
--- a/usrsctplib/netinet/sctp_pcb.c
+++ b/usrsctplib/netinet/sctp_pcb.c
@@ -6782,7 +6782,13 @@ sctp_pcb_init(void)
 	(void)pthread_cond_init(&sctp_it_ctl.iterator_wakeup, NULL);
 #endif
 #endif
+#if defined(__Userspace__)
+	if (start_threads) {
+		sctp_startup_iterator();
+	}
+#else
 	sctp_startup_iterator();
+#endif
 
 #if defined(__FreeBSD__) && defined(SCTP_MCORE_INPUT) && defined(SMP)
 	sctp_startup_mcore_threads();
diff --git a/usrsctplib/netinet/sctp_pcb.h b/usrsctplib/netinet/sctp_pcb.h
index 551bbfb8e..4beffca2a 100755
--- a/usrsctplib/netinet/sctp_pcb.h
+++ b/usrsctplib/netinet/sctp_pcb.h
@@ -315,6 +315,8 @@ struct sctp_base_info {
 	userland_mutex_t timer_mtx;
 	userland_thread_t timer_thread;
 	int timer_thread_should_exit;
+	int iterator_thread_started;
+	int timer_thread_started;
 #if !defined(__Userspace_os_Windows)
 	pthread_mutexattr_t mtx_attr;
 #if defined(INET) || defined(INET6)
diff --git a/usrsctplib/netinet/sctp_usrreq.c b/usrsctplib/netinet/sctp_usrreq.c
index 6a19f62aa..6c39755ca 100755
--- a/usrsctplib/netinet/sctp_usrreq.c
+++ b/usrsctplib/netinet/sctp_usrreq.c
@@ -161,11 +161,14 @@ sctp_init(void)
 	SCTP_BASE_VAR(conn_output) = conn_output;
 	SCTP_BASE_VAR(debug_printf) = debug_printf;
 	SCTP_BASE_VAR(crc32c_offloaded) = 0;
+	SCTP_BASE_VAR(iterator_thread_started) = 0;
+	SCTP_BASE_VAR(timer_thread_started) = 0;
 #endif
 #if defined(__Userspace__)
 	sctp_pcb_init(start_threads);
-	if (start_threads)
+	if (start_threads) {
 		sctp_start_timer();
+	}
 #else
 	sctp_pcb_init();
 #endif
@@ -252,12 +255,14 @@ sctp_finish(void)
 	}
 #endif
 	atomic_cmpset_int(&SCTP_BASE_VAR(timer_thread_should_exit), 0, 1);
+	if (SCTP_BASE_VAR(timer_thread_started)) {
 #if defined(__Userspace_os_Windows)
-	WaitForSingleObject(SCTP_BASE_VAR(timer_thread), INFINITE);
-	CloseHandle(SCTP_BASE_VAR(timer_thread));
+		WaitForSingleObject(SCTP_BASE_VAR(timer_thread), INFINITE);
+		CloseHandle(SCTP_BASE_VAR(timer_thread));
 #else
-	pthread_join(SCTP_BASE_VAR(timer_thread), NULL);
+		pthread_join(SCTP_BASE_VAR(timer_thread), NULL);
 #endif
+	}
 #endif
 	sctp_pcb_finish();
 #if defined(__Windows__)

From fffd324ed7c9fecd85f65d25df2f75db126951dd Mon Sep 17 00:00:00 2001
From: Michael Tuexen <tuexen@fh-muenster.de>
Date: Thu, 20 Feb 2020 15:16:57 +0100
Subject: [PATCH 2/8] Missed by the last commit.

---
 usrsctplib/netinet/sctp_pcb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usrsctplib/netinet/sctp_pcb.c b/usrsctplib/netinet/sctp_pcb.c
index f67e2643e..c40db406a 100755
--- a/usrsctplib/netinet/sctp_pcb.c
+++ b/usrsctplib/netinet/sctp_pcb.c
@@ -6877,7 +6877,7 @@ sctp_pcb_finish(void)
 	}
 #endif
 #if defined(__Userspace__)
-	if (sctp_it_ctl.thread_proc) {
+	if (SCTP_BASE_VAR(iterator_thread_started)) {
 #if defined(__Userspace_os_Windows)
 		WaitForSingleObject(sctp_it_ctl.thread_proc, INFINITE);
 		CloseHandle(sctp_it_ctl.thread_proc);

From 054c8db7234d7f758bc10663ff511627b24609f8 Mon Sep 17 00:00:00 2001
From: Michael Tuexen <tuexen@fh-muenster.de>
Date: Thu, 20 Feb 2020 15:54:37 +0100
Subject: [PATCH 3/8] Fix the non-default stream schedulers such that they
 don't interleave user messages when it is not allowed.

Thanks to Christian Wright for reporting the issue and provding
a patch for the priority scheduler.
---
 usrsctplib/netinet/sctp_ss_functions.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/usrsctplib/netinet/sctp_ss_functions.c b/usrsctplib/netinet/sctp_ss_functions.c
index 59ef9cdfa..553354523 100755
--- a/usrsctplib/netinet/sctp_ss_functions.c
+++ b/usrsctplib/netinet/sctp_ss_functions.c
@@ -30,7 +30,7 @@
 
 #ifdef __FreeBSD__
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: head/sys/netinet/sctp_ss_functions.c 345505 2019-03-25 16:40:54Z tuexen $");
+__FBSDID("$FreeBSD: head/sys/netinet/sctp_ss_functions.c 358028 2020-02-17 18:05:03Z tuexen $");
 #endif
 
 #include <netinet/sctp_pcb.h>
@@ -521,6 +521,9 @@ sctp_ss_prio_select(struct sctp_tcb *stcb SCTP_UNUSED, struct sctp_nets *net,
 {
 	struct sctp_stream_out *strq, *strqt, *strqn;
 
+	if (asoc->ss_data.locked_on_sending) {
+		return (asoc->ss_data.locked_on_sending);
+	}
 	strqt = asoc->ss_data.last_out_stream;
 prio_again:
 	/* Find the next stream to use */
@@ -697,6 +700,9 @@ sctp_ss_fb_select(struct sctp_tcb *stcb SCTP_UNUSED, struct sctp_nets *net,
 {
 	struct sctp_stream_out *strq = NULL, *strqt;
 
+	if (asoc->ss_data.locked_on_sending) {
+		return (asoc->ss_data.locked_on_sending);
+	}
 	if (asoc->ss_data.last_out_stream == NULL ||
 	    TAILQ_FIRST(&asoc->ss_data.out.wheel) == TAILQ_LAST(&asoc->ss_data.out.wheel, sctpwheel_listhead)) {
 		strqt = TAILQ_FIRST(&asoc->ss_data.out.wheel);
@@ -905,6 +911,9 @@ sctp_ss_fcfs_select(struct sctp_tcb *stcb SCTP_UNUSED, struct sctp_nets *net,
 	struct sctp_stream_out *strq;
 	struct sctp_stream_queue_pending *sp;
 
+	if (asoc->ss_data.locked_on_sending) {
+		return (asoc->ss_data.locked_on_sending);
+	}
 	sp = TAILQ_FIRST(&asoc->ss_data.out.list);
 default_again:
 	if (sp != NULL) {

From 71dad431290b5fa3778d134b66da769b24bffebf Mon Sep 17 00:00:00 2001
From: Michael Tuexen <tuexen@fh-muenster.de>
Date: Thu, 20 Feb 2020 16:01:48 +0100
Subject: [PATCH 4/8] Epochify SCTP in the FreeBSD kernel.

---
 usrsctplib/netinet/sctp_bsd_addr.c | 20 +------
 usrsctplib/netinet/sctp_output.c   | 35 +++++++++++-
 usrsctplib/netinet/sctp_usrreq.c   | 88 ++++++++++++++++++++++++++----
 usrsctplib/netinet/sctputil.c      | 37 +++++++++++--
 usrsctplib/netinet6/sctp6_usrreq.c | 27 ++++++++-
 5 files changed, 169 insertions(+), 38 deletions(-)

diff --git a/usrsctplib/netinet/sctp_bsd_addr.c b/usrsctplib/netinet/sctp_bsd_addr.c
index dc159b5c1..4559cc72b 100755
--- a/usrsctplib/netinet/sctp_bsd_addr.c
+++ b/usrsctplib/netinet/sctp_bsd_addr.c
@@ -34,7 +34,7 @@
 
 #ifdef __FreeBSD__
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: head/sys/netinet/sctp_bsd_addr.c 353480 2019-10-13 18:17:08Z tuexen $");
+__FBSDID("$FreeBSD: head/sys/netinet/sctp_bsd_addr.c 358080 2020-02-18 19:41:55Z tuexen $");
 #endif
 
 #include <netinet/sctp_os.h>
@@ -747,24 +747,6 @@ void
 sctp_addr_change_event_handler(void *arg __unused, struct ifaddr *ifa, int cmd) {
 	sctp_addr_change(ifa, cmd);
 }
-
-void
-sctp_add_or_del_interfaces(int (*pred)(struct ifnet *), int add)
-{
-	struct ifnet *ifn;
-	struct ifaddr *ifa;
-
-	IFNET_RLOCK();
-	CK_STAILQ_FOREACH(ifn, &MODULE_GLOBAL(ifnet), if_link) {
-		if (!(*pred)(ifn)) {
-			continue;
-		}
-		CK_STAILQ_FOREACH(ifa, &ifn->if_addrhead, ifa_link) {
-			sctp_addr_change(ifa, add ? RTM_ADD : RTM_DELETE);
-		}
-	}
-	IFNET_RUNLOCK();
-}
 #endif
 #if defined(__APPLE__)
 void
diff --git a/usrsctplib/netinet/sctp_output.c b/usrsctplib/netinet/sctp_output.c
index 47c901d59..ecdcf9332 100755
--- a/usrsctplib/netinet/sctp_output.c
+++ b/usrsctplib/netinet/sctp_output.c
@@ -34,7 +34,7 @@
 
 #ifdef __FreeBSD__
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: head/sys/netinet/sctp_output.c 357705 2020-02-09 22:05:41Z tuexen $");
+__FBSDID("$FreeBSD: head/sys/netinet/sctp_output.c 358083 2020-02-18 21:25:17Z tuexen $");
 #endif
 
 #include <netinet/sctp_os.h>
@@ -13531,6 +13531,9 @@ sctp_lower_sosend(struct socket *so,
 #endif
 	)
 {
+#if defined(__FreeBSD__)
+	struct epoch_tracker et;
+#endif
 	ssize_t sndlen = 0, max_len, local_add_more;
 	int error, len;
 	struct mbuf *top = NULL;
@@ -14120,7 +14123,13 @@ sctp_lower_sosend(struct socket *so,
 		atomic_add_int(&stcb->asoc.refcnt, -1);
 		free_cnt_applied = 0;
 		/* release this lock, otherwise we hang on ourselves */
+#if defined(__FreeBSD__)
+		NET_EPOCH_ENTER(et);
+#endif
 		sctp_abort_an_association(stcb->sctp_ep, stcb, mm, SCTP_SO_LOCKED);
+#if defined(__FreeBSD__)
+	NET_EPOCH_EXIT(et);
+#endif
 		/* now relock the stcb so everything is sane */
 		hold_tcblock = 0;
 		stcb = NULL;
@@ -14466,7 +14475,13 @@ sctp_lower_sosend(struct socket *so,
 					/* a collision took us forward? */
 					queue_only = 0;
 				} else {
+#if defined(__FreeBSD__)
+					NET_EPOCH_ENTER(et);
+#endif
 					sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
+#if defined(__FreeBSD__)
+					NET_EPOCH_EXIT(et);
+#endif
 					SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
 					queue_only = 1;
 				}
@@ -14524,6 +14539,9 @@ sctp_lower_sosend(struct socket *so,
 				 * the input via the net is happening
 				 * and I don't need to start output :-D
 				 */
+#if defined(__FreeBSD__)
+				NET_EPOCH_ENTER(et);
+#endif
 				if (hold_tcblock == 0) {
 					if (SCTP_TCB_TRYLOCK(stcb)) {
 						hold_tcblock = 1;
@@ -14536,6 +14554,9 @@ sctp_lower_sosend(struct socket *so,
 							  stcb,
 							  SCTP_OUTPUT_FROM_USR_SEND, SCTP_SO_LOCKED);
 				}
+#if defined(__FreeBSD__)
+				NET_EPOCH_EXIT(et);
+#endif
 			}
 			if (hold_tcblock == 1) {
 				SCTP_TCB_UNLOCK(stcb);
@@ -14735,8 +14756,14 @@ sctp_lower_sosend(struct socket *so,
 					         "%s:%d at %s", __FILE__, __LINE__, __func__);
 					op_err = sctp_generate_cause(SCTP_BASE_SYSCTL(sctp_diag_info_code),
 					                             msg);
+#if defined(__FreeBSD__)
+	NET_EPOCH_ENTER(et);
+#endif
 					sctp_abort_an_association(stcb->sctp_ep, stcb,
 					                          op_err, SCTP_SO_LOCKED);
+#if defined(__FreeBSD__)
+	NET_EPOCH_EXIT(et);
+#endif
 					/* now relock the stcb so everything is sane */
 					hold_tcblock = 0;
 					stcb = NULL;
@@ -14807,6 +14834,9 @@ sctp_lower_sosend(struct socket *so,
 		               stcb->asoc.total_flight,
 		               stcb->asoc.chunks_on_out_queue, stcb->asoc.total_flight_count);
 	}
+#if defined(__FreeBSD__)
+	NET_EPOCH_ENTER(et);
+#endif
 	if ((queue_only == 0) && (nagle_applies == 0) && (stcb->asoc.peers_rwnd && un_sent)) {
 		/* we can attempt to send too. */
 		if (hold_tcblock == 0) {
@@ -14839,6 +14869,9 @@ sctp_lower_sosend(struct socket *so,
 		(void)sctp_med_chunk_output(inp, stcb, &stcb->asoc, &num_out,
 		                            &reason, 1, 1, &now, &now_filled, frag_point, SCTP_SO_LOCKED);
 	}
+#if defined(__FreeBSD__)
+	NET_EPOCH_EXIT(et);
+#endif
 	SCTPDBG(SCTP_DEBUG_OUTPUT1, "USR Send complete qo:%d prw:%d unsent:%d tf:%d cooq:%d toqs:%d err:%d\n",
 	        queue_only, stcb->asoc.peers_rwnd, un_sent,
 		stcb->asoc.total_flight, stcb->asoc.chunks_on_out_queue,
diff --git a/usrsctplib/netinet/sctp_usrreq.c b/usrsctplib/netinet/sctp_usrreq.c
index 6c39755ca..21f9eea1c 100755
--- a/usrsctplib/netinet/sctp_usrreq.c
+++ b/usrsctplib/netinet/sctp_usrreq.c
@@ -34,7 +34,7 @@
 
 #ifdef __FreeBSD__
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: head/sys/netinet/sctp_usrreq.c 356270 2020-01-02 13:55:10Z tuexen $");
+__FBSDID("$FreeBSD: head/sys/netinet/sctp_usrreq.c 358083 2020-02-18 21:25:17Z tuexen $");
 #endif
 
 #include <netinet/sctp_os.h>
@@ -683,19 +683,22 @@ SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 #ifdef INET
 #if defined(__Panda__) || defined(__Windows__) || defined(__Userspace__)
 int
-#elif defined(__FreeBSD__) && __FreeBSD_version > 690000
+#elif defined(__FreeBSD__)
 static void
 #else
 static int
 #endif
 sctp_abort(struct socket *so)
 {
+#if defined(__FreeBSD__)
+	struct epoch_tracker et;
+#endif
 	struct sctp_inpcb *inp;
 	uint32_t flags;
 
 	inp = (struct sctp_inpcb *)so->so_pcb;
 	if (inp == NULL) {
-#if defined(__FreeBSD__) && __FreeBSD_version > 690000
+#if defined(__FreeBSD__)
 		return;
 #else
 		SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
@@ -703,6 +706,9 @@ sctp_abort(struct socket *so)
 #endif
 	}
 
+#if defined(__FreeBSD__)
+	NET_EPOCH_ENTER(et);
+#endif
  sctp_must_try_again:
 	flags = inp->sctp_flags;
 #ifdef SCTP_LOG_CLOSING
@@ -735,7 +741,8 @@ sctp_abort(struct socket *so)
 			goto sctp_must_try_again;
 		}
 	}
-#if defined(__FreeBSD__) && __FreeBSD_version > 690000
+#if defined(__FreeBSD__)
+	NET_EPOCH_EXIT(et);
 	return;
 #else
 	return (0);
@@ -896,6 +903,9 @@ sctpconn_bind(struct socket *so, struct sockaddr *addr)
 void
 sctp_close(struct socket *so)
 {
+#if defined(__FreeBSD__)
+	struct epoch_tracker et;
+#endif
 	struct sctp_inpcb *inp;
 	uint32_t flags;
 
@@ -906,6 +916,9 @@ sctp_close(struct socket *so)
 	/* Inform all the lower layer assoc that we
 	 * are done.
 	 */
+#if defined(__FreeBSD__)
+	NET_EPOCH_ENTER(et);
+#endif
  sctp_must_try_again:
 	flags = inp->sctp_flags;
 #ifdef SCTP_LOG_CLOSING
@@ -953,6 +966,9 @@ sctp_close(struct socket *so)
 			goto sctp_must_try_again;
 		}
 	}
+#if defined(__FreeBSD__)
+	NET_EPOCH_EXIT(et);
+#endif
 	return;
 }
 
@@ -1125,9 +1141,18 @@ sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 		 * definitions) but this is not advisable. This code is used
 		 * by FreeBSD when sending a file with sendfile() though.
 		 */
+#if defined(__FreeBSD__)
+		struct epoch_tracker et;
+#endif
 		int ret;
 
+#if defined(__FreeBSD__)
+	NET_EPOCH_ENTER(et);
+#endif
 		ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
+#if defined(__FreeBSD__)
+	NET_EPOCH_EXIT(et);
+#endif
 		inp->pkt = NULL;
 		inp->control = NULL;
 		return (ret);
@@ -1155,6 +1180,9 @@ sctp_disconnect(struct socket *so)
 			SCTP_INP_RUNLOCK(inp);
 			return (0);
 		} else {
+#if defined(__FreeBSD__)
+			struct epoch_tracker et;
+#endif
 			struct sctp_association *asoc;
 			struct sctp_tcb *stcb;
 
@@ -1172,6 +1200,9 @@ sctp_disconnect(struct socket *so)
 				SCTP_INP_RUNLOCK(inp);
 				return (0);
 			}
+#if defined(__FreeBSD__)
+			NET_EPOCH_ENTER(et);
+#endif
 #if defined(__Userspace__)
 			if (((so->so_options & SCTP_SO_LINGER) &&
 			     (so->so_linger == 0)) ||
@@ -1197,6 +1228,9 @@ sctp_disconnect(struct socket *so)
 				(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 				                      SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 				/* No unlock tcb assoc is gone */
+#if defined(__FreeBSD__)
+				NET_EPOCH_EXIT(et);
+#endif
 				return (0);
 			}
 			if (TAILQ_EMPTY(&asoc->send_queue) &&
@@ -1269,12 +1303,18 @@ sctp_disconnect(struct socket *so)
 					SCTP_INP_RUNLOCK(inp);
 					(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 					                      SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
+#if defined(__FreeBSD__)
+					NET_EPOCH_EXIT(et);
+#endif
 					return (0);
 				} else {
 					sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 				}
 			}
 			soisdisconnecting(so);
+#if defined(__FreeBSD__)
+			NET_EPOCH_EXIT(et);
+#endif
 			SCTP_TCB_UNLOCK(stcb);
 			SCTP_INP_RUNLOCK(inp);
 			return (0);
@@ -1373,6 +1413,9 @@ sctp_shutdown(struct socket *so)
 		 * a SHUT_WR or SHUT_RDWR.
 		 * This means we put the shutdown flag against it.
 		 */
+#if defined(__FreeBSD__)
+		struct epoch_tracker et;
+#endif
 		struct sctp_tcb *stcb;
 		struct sctp_association *asoc;
 		struct sctp_nets *netp;
@@ -1411,6 +1454,9 @@ sctp_shutdown(struct socket *so)
 			SCTP_INP_RUNLOCK(inp);
 			return (0);
 		}
+#if defined(__FreeBSD__)
+		NET_EPOCH_ENTER(et);
+#endif
 		if (stcb->asoc.alternate) {
 			netp = stcb->asoc.alternate;
 		} else {
@@ -1449,6 +1495,9 @@ sctp_shutdown(struct socket *so)
 				SCTP_INP_RUNLOCK(inp);
 				sctp_abort_an_association(stcb->sctp_ep, stcb,
 							  op_err, SCTP_SO_LOCKED);
+#if defined(__FreeBSD__)
+				NET_EPOCH_EXIT(et);
+#endif
 				return (0);
 			}
 		}
@@ -1457,6 +1506,9 @@ sctp_shutdown(struct socket *so)
 		sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 		SCTP_TCB_UNLOCK(stcb);
 		SCTP_INP_RUNLOCK(inp);
+#if defined(__FreeBSD__)
+		NET_EPOCH_EXIT(et);
+#endif
 		return (0);
 	}
 }
@@ -7836,13 +7888,14 @@ sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
 int
 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
 {
-	void *optval = NULL;
-	size_t optsize = 0;
-	void *p;
-	int error = 0;
 #if defined(__FreeBSD__)
+	struct epoch_tracker et;
 	struct sctp_inpcb *inp;
 #endif
+	void *optval = NULL;
+	void *p;
+	size_t optsize = 0;
+	int error = 0;
 
 #if defined(__FreeBSD__)
 	if ((sopt->sopt_level == SOL_SOCKET) &&
@@ -7895,7 +7948,13 @@ sctp_ctloutput(struct socket *so, struct sockopt *sopt)
 	p = (void *)sopt->sopt_p;
 #endif
 	if (sopt->sopt_dir == SOPT_SET) {
+#if defined(__FreeBSD__)
+		NET_EPOCH_ENTER(et);
+#endif
 		error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
+#if defined(__FreeBSD__)
+		NET_EPOCH_EXIT(et);
+#endif
 	} else if (sopt->sopt_dir == SOPT_GET) {
 		error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
 	} else {
@@ -7940,6 +7999,9 @@ sctp_connect(struct socket *so, struct mbuf *nam, struct proc *p)
 
 #endif
 #endif
+#if defined(__FreeBSD__)
+	struct epoch_tracker et;
+#endif
 #ifdef SCTP_MVRF
 	int i, fnd = 0;
 #endif
@@ -7961,7 +8023,7 @@ sctp_connect(struct socket *so, struct mbuf *nam, struct proc *p)
 	}
 
 #if defined(__Userspace__)
-        /* TODO __Userspace__ falls into this code for IPv6 stuff at the moment... */
+	/* 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) {
@@ -8017,7 +8079,9 @@ sctp_connect(struct socket *so, struct mbuf *nam, struct proc *p)
 	SCTP_INP_INCR_REF(inp);
 	SCTP_ASOC_CREATE_LOCK(inp);
 	create_lock_on = 1;
-
+#if defined(__FreeBSD__)
+	NET_EPOCH_ENTER(et);
+#endif
 
 	if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
 	    (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
@@ -8122,10 +8186,12 @@ sctp_connect(struct socket *so, struct mbuf *nam, struct proc *p)
 	sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 	SCTP_TCB_UNLOCK(stcb);
  out_now:
+#if defined(__FreeBSD__)
+	NET_EPOCH_EXIT(et);
+#endif
 	if (create_lock_on) {
 		SCTP_ASOC_CREATE_UNLOCK(inp);
 	}
-
 	SCTP_INP_DECR_REF(inp);
 	return (error);
 }
diff --git a/usrsctplib/netinet/sctputil.c b/usrsctplib/netinet/sctputil.c
index a074a84bf..0f9b1b2ce 100755
--- a/usrsctplib/netinet/sctputil.c
+++ b/usrsctplib/netinet/sctputil.c
@@ -34,7 +34,7 @@
 
 #ifdef __FreeBSD__
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: head/sys/netinet/sctputil.c 357775 2020-02-11 20:02:20Z tuexen $");
+__FBSDID("$FreeBSD: head/sys/netinet/sctputil.c 358083 2020-02-18 21:25:17Z tuexen $");
 #endif
 
 #include <netinet/sctp_os.h>
@@ -1419,11 +1419,17 @@ sctp_expand_mapping_array(struct sctp_association *asoc, uint32_t needed)
 static void
 sctp_iterator_work(struct sctp_iterator *it)
 {
+#if defined(__FreeBSD__)
+	struct epoch_tracker et;
+#endif
+	struct sctp_inpcb *tinp;
 	int iteration_count = 0;
 	int inp_skip = 0;
 	int first_in = 1;
-	struct sctp_inpcb *tinp;
 
+#if defined(__FreeBSD__)
+	NET_EPOCH_ENTER(et);
+#endif
 	SCTP_INP_INFO_RLOCK();
 	SCTP_ITERATOR_LOCK();
 	sctp_it_ctl.cur_it = it;
@@ -1441,6 +1447,9 @@ sctp_iterator_work(struct sctp_iterator *it)
 			(*it->function_atend) (it->pointer, it->val);
 		}
 		SCTP_FREE(it, SCTP_M_ITER);
+#if defined(__FreeBSD__)
+		NET_EPOCH_EXIT(et);
+#endif
 		return;
 	}
 select_a_new_ep:
@@ -1661,6 +1670,9 @@ sctp_handle_addr_wq(void)
 void
 sctp_timeout_handler(void *t)
 {
+#if defined(__FreeBSD__)
+	struct epoch_tracker et;
+#endif
 	struct sctp_inpcb *inp;
 	struct sctp_tcb *stcb;
 	struct sctp_nets *net;
@@ -1795,6 +1807,9 @@ sctp_timeout_handler(void *t)
 	/* record in stopped what t-o occurred */
 	tmr->stopped_from = type;
 
+#if defined(__FreeBSD__)
+	NET_EPOCH_ENTER(et);
+#endif
 	/* mark as being serviced now */
 	if (SCTP_OS_TIMER_PENDING(&tmr->timer)) {
 		/*
@@ -1998,7 +2013,6 @@ sctp_timeout_handler(void *t)
 		sctp_abort_an_association(inp, stcb, op_err, SCTP_SO_NOT_LOCKED);
 		/* no need to unlock on tcb its gone */
 		goto out_decr;
-
 	case SCTP_TIMER_TYPE_STRRESET:
 		if ((stcb == NULL) || (inp == NULL)) {
 			break;
@@ -2031,7 +2045,6 @@ sctp_timeout_handler(void *t)
 		sctp_delete_prim_timer(inp, stcb, net);
 		SCTP_STAT_INCR(sctps_timodelprim);
 		break;
-
 	case SCTP_TIMER_TYPE_AUTOCLOSE:
 		if ((stcb == NULL) || (inp == NULL)) {
 			break;
@@ -2138,8 +2151,11 @@ sctp_timeout_handler(void *t)
 
 out_no_decr:
 	SCTPDBG(SCTP_DEBUG_TIMER1, "Timer now complete (type = %d)\n", type);
-#if defined(__FreeBSD__) && __FreeBSD_version >= 801000
+#if defined(__FreeBSD__)
+#if __FreeBSD_version >= 801000
 	CURVNET_RESTORE();
+#endif
+	NET_EPOCH_EXIT(et);
 #endif
 }
 
@@ -5621,6 +5637,9 @@ sctp_user_rcvd(struct sctp_tcb *stcb, uint32_t *freed_so_far, int hold_rlock,
 	       uint32_t rwnd_req)
 {
 	/* User pulled some data, do we need a rwnd update? */
+#if defined(__FreeBSD__)
+	struct epoch_tracker et;
+#endif
 	int r_unlocked = 0;
 	uint32_t dif, rwnd;
 	struct socket *so = NULL;
@@ -5631,7 +5650,7 @@ sctp_user_rcvd(struct sctp_tcb *stcb, uint32_t *freed_so_far, int hold_rlock,
 	atomic_add_int(&stcb->asoc.refcnt, 1);
 
 	if ((SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_ACK_SENT) ||
-            (stcb->asoc.state & (SCTP_STATE_ABOUT_TO_BE_FREED | SCTP_STATE_SHUTDOWN_RECEIVED))) {
+	    (stcb->asoc.state & (SCTP_STATE_ABOUT_TO_BE_FREED | SCTP_STATE_SHUTDOWN_RECEIVED))) {
 		/* Pre-check If we are freeing no update */
 		goto no_lock;
 	}
@@ -5676,11 +5695,17 @@ sctp_user_rcvd(struct sctp_tcb *stcb, uint32_t *freed_so_far, int hold_rlock,
 			goto out;
 		}
 		SCTP_STAT_INCR(sctps_wu_sacks_sent);
+#if defined(__FreeBSD__)
+		NET_EPOCH_ENTER(et);
+#endif
 		sctp_send_sack(stcb, SCTP_SO_LOCKED);
 
 		sctp_chunk_output(stcb->sctp_ep, stcb,
 				  SCTP_OUTPUT_FROM_USR_RCVD, SCTP_SO_LOCKED);
 		/* make sure no timer is running */
+#if defined(__FreeBSD__)
+		NET_EPOCH_EXIT(et);
+#endif
 		sctp_timer_stop(SCTP_TIMER_TYPE_RECV, stcb->sctp_ep, stcb, NULL,
 		                SCTP_FROM_SCTPUTIL + SCTP_LOC_6);
 		SCTP_TCB_UNLOCK(stcb);
diff --git a/usrsctplib/netinet6/sctp6_usrreq.c b/usrsctplib/netinet6/sctp6_usrreq.c
index 23b1813e7..91cbfac38 100644
--- a/usrsctplib/netinet6/sctp6_usrreq.c
+++ b/usrsctplib/netinet6/sctp6_usrreq.c
@@ -34,7 +34,7 @@
 
 #ifdef __FreeBSD__
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: head/sys/netinet6/sctp6_usrreq.c 355264 2019-12-01 16:14:44Z tuexen $");
+__FBSDID("$FreeBSD: head/sys/netinet6/sctp6_usrreq.c 358083 2020-02-18 21:25:17Z tuexen $");
 #endif
 
 #include <netinet/sctp_os.h>
@@ -710,6 +710,9 @@ static int
 #endif
 sctp6_abort(struct socket *so)
 {
+#if defined(__FreeBSD__)
+	struct epoch_tracker et;
+#endif
 	struct sctp_inpcb *inp;
 	uint32_t flags;
 
@@ -722,6 +725,9 @@ sctp6_abort(struct socket *so)
 		return (EINVAL);
 #endif
 	}
+#if defined(__FreeBSD__)
+	NET_EPOCH_ENTER(et);
+#endif
  sctp_must_try_again:
 	flags = inp->sctp_flags;
 #ifdef SCTP_LOG_CLOSING
@@ -754,6 +760,7 @@ sctp6_abort(struct socket *so)
 		}
 	}
 #if (defined(__FreeBSD__) && __FreeBSD_version > 690000) || defined(__Windows__)
+	NET_EPOCH_EXIT(et);
 	return;
 #else
 	return (0);
@@ -1134,9 +1141,18 @@ sctp6_send(struct socket *so, int flags, struct mbuf *m, struct mbuf *nam,
 		 * optionaly switch back to this code (by changing back the
 		 * defininitions but this is not advisable.
 		 */
+#if defined(__FreeBSD__)
+		struct epoch_tracker et;
+#endif
 		int ret;
 
+#if defined(__FreeBSD__)
+	NET_EPOCH_ENTER(et);
+#endif
 		ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
+#if defined(__FreeBSD__)
+	NET_EPOCH_EXIT(et);
+#endif
 		inp->pkt = NULL;
 		inp->control = NULL;
 		return (ret);
@@ -1172,6 +1188,9 @@ static int
 sctp6_connect(struct socket *so, struct mbuf *nam, struct proc *p)
 {
 	struct sockaddr *addr = mtod(nam, struct sockaddr *);
+#endif
+#if defined(__FreeBSD__)
+	struct epoch_tracker et;
 #endif
 	uint32_t vrf_id;
 	int error = 0;
@@ -1313,8 +1332,14 @@ sctp6_connect(struct socket *so, struct mbuf *nam, struct proc *p)
 	}
 	SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
 	(void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
+#if defined(__FreeBSD__)
+	NET_EPOCH_ENTER(et);
+#endif
 	sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
 	SCTP_TCB_UNLOCK(stcb);
+#if defined(__FreeBSD__)
+	NET_EPOCH_EXIT(et);
+#endif
 	return (error);
 }
 

From a3d91ccb1d0a15364444ea36edfc0c0966457768 Mon Sep 17 00:00:00 2001
From: Michael Tuexen <tuexen@fh-muenster.de>
Date: Thu, 20 Feb 2020 16:42:28 +0100
Subject: [PATCH 5/8] Remove unused timer type.

---
 usrsctplib/netinet/sctp_constants.h | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/usrsctplib/netinet/sctp_constants.h b/usrsctplib/netinet/sctp_constants.h
index 9a9dd6b1d..fbbe73b54 100755
--- a/usrsctplib/netinet/sctp_constants.h
+++ b/usrsctplib/netinet/sctp_constants.h
@@ -34,7 +34,7 @@
 
 #ifdef __FreeBSD__
 #include <sys/cdefs.h>
-__FBSDID("$FreeBSD: head/sys/netinet/sctp_constants.h 357500 2020-02-04 12:34:16Z tuexen $");
+__FBSDID("$FreeBSD: head/sys/netinet/sctp_constants.h 358169 2020-02-20 15:37:44Z tuexen $");
 #endif
 
 #ifndef _NETINET_SCTP_CONSTANTS_H_
@@ -551,14 +551,13 @@ extern void getwintimeofday(struct timeval *tv);
 #define SCTP_TIMER_TYPE_ASCONF		10
 #define SCTP_TIMER_TYPE_SHUTDOWNGUARD	11
 #define SCTP_TIMER_TYPE_AUTOCLOSE	12
-#define SCTP_TIMER_TYPE_EVENTWAKE	13
-#define SCTP_TIMER_TYPE_STRRESET        14
-#define SCTP_TIMER_TYPE_INPKILL         15
-#define SCTP_TIMER_TYPE_ASOCKILL        16
-#define SCTP_TIMER_TYPE_ADDR_WQ         17
-#define SCTP_TIMER_TYPE_PRIM_DELETED    18
+#define SCTP_TIMER_TYPE_STRRESET	13
+#define SCTP_TIMER_TYPE_INPKILL		14
+#define SCTP_TIMER_TYPE_ASOCKILL	15
+#define SCTP_TIMER_TYPE_ADDR_WQ		16
+#define SCTP_TIMER_TYPE_PRIM_DELETED	17
 /* add new timers here - and increment LAST */
-#define SCTP_TIMER_TYPE_LAST            19
+#define SCTP_TIMER_TYPE_LAST		18
 
 #define SCTP_IS_TIMER_TYPE_VALID(t)	(((t) > SCTP_TIMER_TYPE_NONE) && \
 					 ((t) < SCTP_TIMER_TYPE_LAST))

From c5abb7a4e65449e32c33fa7703a7bc234bdffb82 Mon Sep 17 00:00:00 2001
From: Michael Tuexen <tuexen@fh-muenster.de>
Date: Thu, 20 Feb 2020 20:06:03 +0100
Subject: [PATCH 6/8] Start a timer thread even if no threads should be
 started.

---
 usrsctplib/netinet/sctp_pcb.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/usrsctplib/netinet/sctp_pcb.c b/usrsctplib/netinet/sctp_pcb.c
index c40db406a..016aa603d 100755
--- a/usrsctplib/netinet/sctp_pcb.c
+++ b/usrsctplib/netinet/sctp_pcb.c
@@ -6782,13 +6782,7 @@ sctp_pcb_init(void)
 	(void)pthread_cond_init(&sctp_it_ctl.iterator_wakeup, NULL);
 #endif
 #endif
-#if defined(__Userspace__)
-	if (start_threads) {
-		sctp_startup_iterator();
-	}
-#else
 	sctp_startup_iterator();
-#endif
 
 #if defined(__FreeBSD__) && defined(SCTP_MCORE_INPUT) && defined(SMP)
 	sctp_startup_mcore_threads();

From 6036f341bfc8a3a2ee768f8bdf4fd26be1ed1ce2 Mon Sep 17 00:00:00 2001
From: Felix Weinrank <weinrank@fh-muenster.de>
Date: Thu, 12 Mar 2020 18:24:50 +0100
Subject: [PATCH 7/8] Sync fuzzing changes back to master (#440)

---
 CMakeLists.txt                                |   3 +-
 fuzzer/CORPUS_CONNECT/addip-000000            | Bin 0 -> 45 bytes
 fuzzer/CORPUS_CONNECT/addip-000001            | Bin 0 -> 45 bytes
 fuzzer/CORPUS_CONNECT/addip-000002            | Bin 0 -> 73 bytes
 fuzzer/CORPUS_CONNECT/addip-000003            | Bin 0 -> 73 bytes
 fuzzer/CORPUS_CONNECT/addip-000004            | Bin 0 -> 49 bytes
 fuzzer/CORPUS_CONNECT/addip-000005            | Bin 0 -> 45 bytes
 fuzzer/CORPUS_CONNECT/addip-000006            | Bin 0 -> 49 bytes
 fuzzer/CORPUS_CONNECT/addip-000007            | Bin 0 -> 45 bytes
 fuzzer/CORPUS_CONNECT/addip-000008            | Bin 0 -> 73 bytes
 fuzzer/CORPUS_CONNECT/addip-000009            | Bin 0 -> 73 bytes
 fuzzer/CORPUS_CONNECT/addip-000010            | Bin 0 -> 49 bytes
 fuzzer/CORPUS_CONNECT/addip-000011            | Bin 0 -> 49 bytes
 fuzzer/CORPUS_CONNECT/dummy-01                | Bin 0 -> 73 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000000           | Bin 101 -> 101 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000001           | Bin 421 -> 421 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000002           | Bin 329 -> 329 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000003           | Bin 5 -> 15 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000004           | Bin 25 -> 25 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000005           | Bin 17 -> 17 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000006           | Bin 25 -> 25 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000007           | Bin 17 -> 17 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000008           | Bin 21 -> 21 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000009           | Bin 17 -> 17 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000010           | Bin 33 -> 33 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000011           | Bin 17 -> 17 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000012           | Bin 25 -> 25 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000013           | Bin 17 -> 17 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000014           | Bin 25 -> 25 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000015           | Bin 17 -> 17 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000016           | Bin 25 -> 9 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000017           | Bin 41 -> 15 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000018           | Bin 37 -> 5 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000019           | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000020           | Bin 33 -> 0 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000021           | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000022           | Bin 25 -> 0 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000023           | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000024           | Bin 25 -> 0 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000025           | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000026           | Bin 15 -> 0 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000027           | Bin 5 -> 0 bytes
 fuzzer/CORPUS_CONNECT/rtcweb-000028           | Bin 15 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000000            | Bin 129 -> 109 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000001            | Bin 505 -> 429 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000002            | Bin 385 -> 337 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000004            | Bin 45 -> 217 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000005            | Bin 45 -> 217 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000006            | Bin 45 -> 17 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000007            | Bin 1041 -> 17 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000008            | Bin 1041 -> 9 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000009            | Bin 1041 -> 15 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000010            | Bin 1041 -> 5 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000011            | Bin 1041 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000012            | Bin 45 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000013            | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000014            | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000015            | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000016            | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000017            | Bin 9 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000020            | Bin 137 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000021            | Bin 529 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000022            | Bin 401 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000024            | Bin 45 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000025            | Bin 45 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000026            | Bin 45 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000027            | Bin 1145 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000028            | Bin 1361 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000029            | Bin 929 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000030            | Bin 45 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000031            | Bin 1361 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000032            | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000033            | Bin 929 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000034            | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000035            | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000036            | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000037            | Bin 9 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000038            | Bin 15 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000039            | Bin 5 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000040            | Bin 137 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000041            | Bin 529 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000042            | Bin 401 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000043            | Bin 15 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000044            | Bin 45 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000045            | Bin 45 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000046            | Bin 45 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000047            | Bin 1205 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000048            | Bin 1381 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000049            | Bin 45 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000050            | Bin 1029 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000051            | Bin 1205 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000052            | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000053            | Bin 1205 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000054            | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000055            | Bin 17 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000056            | Bin 9 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000057            | Bin 15 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-000058            | Bin 5 -> 0 bytes
 fuzzer/CORPUS_CONNECT/tsctp-i-data-000000     | Bin 0 -> 109 bytes
 fuzzer/CORPUS_CONNECT/tsctp-i-data-000001     | Bin 0 -> 429 bytes
 fuzzer/CORPUS_CONNECT/tsctp-i-data-000002     | Bin 0 -> 337 bytes
 .../{tsctp-000023 => tsctp-i-data-000003}     | Bin
 fuzzer/CORPUS_CONNECT/tsctp-i-data-000004     | Bin 0 -> 221 bytes
 fuzzer/CORPUS_CONNECT/tsctp-i-data-000005     | Bin 0 -> 221 bytes
 fuzzer/CORPUS_CONNECT/tsctp-i-data-000006     | Bin 0 -> 17 bytes
 fuzzer/CORPUS_CONNECT/tsctp-i-data-000007     | Bin 0 -> 17 bytes
 fuzzer/CORPUS_CONNECT/tsctp-i-data-000008     | Bin 0 -> 9 bytes
 .../{tsctp-000018 => tsctp-i-data-000009}     | Bin
 .../{tsctp-000019 => tsctp-i-data-000010}     | Bin
 fuzzer/build-fuzzer.sh                        |   4 +-
 fuzzer/check-input.sh                         |   2 +-
 fuzzer/crashtest.py                           |   1 -
 fuzzer/fuzzer_connect.c                       | 222 ++++++++----------
 fuzzer/fuzzer_connect_multi.sh                |   4 +-
 programs/programs_helper.c                    |  16 +-
 usrsctplib/CMakeLists.txt                     |  12 +-
 usrsctplib/netinet/sctp_auth.c                |  12 +-
 117 files changed, 133 insertions(+), 143 deletions(-)
 create mode 100644 fuzzer/CORPUS_CONNECT/addip-000000
 create mode 100644 fuzzer/CORPUS_CONNECT/addip-000001
 create mode 100644 fuzzer/CORPUS_CONNECT/addip-000002
 create mode 100644 fuzzer/CORPUS_CONNECT/addip-000003
 create mode 100644 fuzzer/CORPUS_CONNECT/addip-000004
 create mode 100644 fuzzer/CORPUS_CONNECT/addip-000005
 create mode 100644 fuzzer/CORPUS_CONNECT/addip-000006
 create mode 100644 fuzzer/CORPUS_CONNECT/addip-000007
 create mode 100644 fuzzer/CORPUS_CONNECT/addip-000008
 create mode 100644 fuzzer/CORPUS_CONNECT/addip-000009
 create mode 100644 fuzzer/CORPUS_CONNECT/addip-000010
 create mode 100644 fuzzer/CORPUS_CONNECT/addip-000011
 create mode 100644 fuzzer/CORPUS_CONNECT/dummy-01
 delete mode 100644 fuzzer/CORPUS_CONNECT/rtcweb-000019
 delete mode 100644 fuzzer/CORPUS_CONNECT/rtcweb-000020
 delete mode 100644 fuzzer/CORPUS_CONNECT/rtcweb-000021
 delete mode 100644 fuzzer/CORPUS_CONNECT/rtcweb-000022
 delete mode 100644 fuzzer/CORPUS_CONNECT/rtcweb-000023
 delete mode 100644 fuzzer/CORPUS_CONNECT/rtcweb-000024
 delete mode 100644 fuzzer/CORPUS_CONNECT/rtcweb-000025
 delete mode 100644 fuzzer/CORPUS_CONNECT/rtcweb-000026
 delete mode 100644 fuzzer/CORPUS_CONNECT/rtcweb-000027
 delete mode 100644 fuzzer/CORPUS_CONNECT/rtcweb-000028
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000011
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000012
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000013
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000014
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000015
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000016
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000017
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000020
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000021
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000022
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000024
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000025
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000026
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000027
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000028
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000029
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000030
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000031
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000032
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000033
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000034
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000035
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000036
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000037
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000038
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000039
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000040
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000041
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000042
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000043
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000044
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000045
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000046
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000047
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000048
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000049
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000050
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000051
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000052
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000053
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000054
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000055
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000056
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000057
 delete mode 100644 fuzzer/CORPUS_CONNECT/tsctp-000058
 create mode 100644 fuzzer/CORPUS_CONNECT/tsctp-i-data-000000
 create mode 100644 fuzzer/CORPUS_CONNECT/tsctp-i-data-000001
 create mode 100644 fuzzer/CORPUS_CONNECT/tsctp-i-data-000002
 rename fuzzer/CORPUS_CONNECT/{tsctp-000023 => tsctp-i-data-000003} (100%)
 create mode 100644 fuzzer/CORPUS_CONNECT/tsctp-i-data-000004
 create mode 100644 fuzzer/CORPUS_CONNECT/tsctp-i-data-000005
 create mode 100644 fuzzer/CORPUS_CONNECT/tsctp-i-data-000006
 create mode 100644 fuzzer/CORPUS_CONNECT/tsctp-i-data-000007
 create mode 100644 fuzzer/CORPUS_CONNECT/tsctp-i-data-000008
 rename fuzzer/CORPUS_CONNECT/{tsctp-000018 => tsctp-i-data-000009} (100%)
 rename fuzzer/CORPUS_CONNECT/{tsctp-000019 => tsctp-i-data-000010} (100%)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ba3b594ee..37270d1d3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -259,8 +259,9 @@ elseif (CMAKE_C_COMPILER_ID MATCHES "Clang" OR CMAKE_C_COMPILER_ID MATCHES "Appl
 	endif ()
 
 	if (sctp_build_fuzzer)
+		set(CMAKE_BUILD_TYPE "DEBUG")
 		add_definitions(-DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION)
-		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=fuzzer-no-link")
+		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O1 -fsanitize=fuzzer-no-link")
 	endif ()
 endif ()
 
diff --git a/fuzzer/CORPUS_CONNECT/addip-000000 b/fuzzer/CORPUS_CONNECT/addip-000000
new file mode 100644
index 0000000000000000000000000000000000000000..e3c24629947093f7c33ad462206ba0e8512677f3
GIT binary patch
literal 45
rcmZQzVPMc<U}Vr(Tc6JGqMM!Jrr@=va&yfqOacrHS58(2Gavx~`U(lp

literal 0
HcmV?d00001

diff --git a/fuzzer/CORPUS_CONNECT/addip-000001 b/fuzzer/CORPUS_CONNECT/addip-000001
new file mode 100644
index 0000000000000000000000000000000000000000..8fb65088630e2250a9463089d6a2abc2b14c2def
GIT binary patch
literal 45
rcmZQzVPMc<U}Vr(Tc6JGqMMz;Kd$20N+FwnOacrHS58(2Gavx~`ML?>

literal 0
HcmV?d00001

diff --git a/fuzzer/CORPUS_CONNECT/addip-000002 b/fuzzer/CORPUS_CONNECT/addip-000002
new file mode 100644
index 0000000000000000000000000000000000000000..d151a570399f2ba0304300b40a55d7aae883fc0c
GIT binary patch
literal 73
zcmZSJXJF7^U|?W2uv{f}-Eam!EAK6(S0R>SVJ|qD;;Tg~WG~xau-v0C;~)crLIIye
a90Mx@$CZ<n!3P)_1Q>xDLHv3~Mn(X*zY*2|

literal 0
HcmV?d00001

diff --git a/fuzzer/CORPUS_CONNECT/addip-000003 b/fuzzer/CORPUS_CONNECT/addip-000003
new file mode 100644
index 0000000000000000000000000000000000000000..943b3e39b5756f63fee98479cbbf0b2670e7e203
GIT binary patch
literal 73
zcmZSJXJF7^U|?W&<5%aq|DsaNWN%KEKY!5W&Fm}AteG`;?q1~;)5=pO%s9xvpzw9o
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literal 0
HcmV?d00001

diff --git a/fuzzer/CORPUS_CONNECT/addip-000004 b/fuzzer/CORPUS_CONNECT/addip-000004
new file mode 100644
index 0000000000000000000000000000000000000000..1d05d6fdb695e6350d31d5a2f663294de837573c
GIT binary patch
literal 49
zcmV-10M7pa4*&ot00003qtDSE#VLu{)zTSn4ry%Y=Jp&Iuwm2F^Y`@Hxz$!vfB*mp
Ha1J<L-u4wY

literal 0
HcmV?d00001

diff --git a/fuzzer/CORPUS_CONNECT/addip-000005 b/fuzzer/CORPUS_CONNECT/addip-000005
new file mode 100644
index 0000000000000000000000000000000000000000..c67d55278822432c1b430a6dfaba310e4b8423b4
GIT binary patch
literal 45
rcmZQzVPMc<U}VtPQlHN7e=;k>lKcKQdOvOUXA)pwsAptkWIzG{0bL17

literal 0
HcmV?d00001

diff --git a/fuzzer/CORPUS_CONNECT/addip-000006 b/fuzzer/CORPUS_CONNECT/addip-000006
new file mode 100644
index 0000000000000000000000000000000000000000..5152f0ac591c31175f890100105c68410dcfa2b5
GIT binary patch
literal 49
zcmV-10M7pa4*&ot00003nV}PDnf5`cGcP%dF0%dDKYe=)#Yq61t7T@5i}_<zfB*mp
H^{TYVi4YSM

literal 0
HcmV?d00001

diff --git a/fuzzer/CORPUS_CONNECT/addip-000007 b/fuzzer/CORPUS_CONNECT/addip-000007
new file mode 100644
index 0000000000000000000000000000000000000000..c52c2cebe6032afc969b97408aab57233444907f
GIT binary patch
literal 45
rcmZQzVPMc<U}VtPQlHN7e=;kB?M`9yli4g*OacrH^^A;+3`hU~#PbHx

literal 0
HcmV?d00001

diff --git a/fuzzer/CORPUS_CONNECT/addip-000008 b/fuzzer/CORPUS_CONNECT/addip-000008
new file mode 100644
index 0000000000000000000000000000000000000000..da1973aec08c60045508933b7d31ac09e8f6d5e4
GIT binary patch
literal 73
zcmZSJXJF7^U|?WYvGtm8;Xu1)?Asrge)Hc}&U}A9@6$TjP%**XQ!nytiaE%@pisbP
X5zoNNz){c0$asK>L4Xmc5yl4qjmH$i

literal 0
HcmV?d00001

diff --git a/fuzzer/CORPUS_CONNECT/addip-000009 b/fuzzer/CORPUS_CONNECT/addip-000009
new file mode 100644
index 0000000000000000000000000000000000000000..32871149e8ec5f6fc5c10f754f055203df964d73
GIT binary patch
literal 73
zcmZSJXJF7^U|?YW@ZIjNic9%M{r``q^R^$F|C8gvSFLj#M-J4<XPgZ17dgnlpzw9o
XmQxI@3>@{0jEo1E7z7xB8ex0@=^qy}

literal 0
HcmV?d00001

diff --git a/fuzzer/CORPUS_CONNECT/addip-000010 b/fuzzer/CORPUS_CONNECT/addip-000010
new file mode 100644
index 0000000000000000000000000000000000000000..3fe2c7424ecd8650f9c08888b867301fd2625303
GIT binary patch
literal 49
zcmV-10M7pa4*&ot00003F$d=A?X#@@cQ&1rxVdheQj-&L8)lc5#MyR^-|j!9fB*mp
Ha1J<M%f%Dy

literal 0
HcmV?d00001

diff --git a/fuzzer/CORPUS_CONNECT/addip-000011 b/fuzzer/CORPUS_CONNECT/addip-000011
new file mode 100644
index 0000000000000000000000000000000000000000..45549541790824958ec3c93cb1086c1791e10bfd
GIT binary patch
literal 49
zcmV-10M7pa4*&ot00003&veBaXm}*FrrevHasA1gt93+*&*Zk5iC%S$K)_J6fB*mp
H^{TYW*02^L

literal 0
HcmV?d00001

diff --git a/fuzzer/CORPUS_CONNECT/dummy-01 b/fuzzer/CORPUS_CONNECT/dummy-01
new file mode 100644
index 0000000000000000000000000000000000000000..2648f8f8f4892419eca04e93c203d7f0aee07776
GIT binary patch
literal 73
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b*@l6Yf#b@_%HRWx3<8WmjUawKBO@aK+Rzuz

literal 0
HcmV?d00001

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000000 b/fuzzer/CORPUS_CONNECT/rtcweb-000000
index fd2da797fc8ab5f0c88ad5ccb4063aafb945a984..396919d0622126b66fdf8cf42550ef6c893c2b2c 100644
GIT binary patch
delta 83
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n@?X5qCeFUaTr<IfYvm@T@GUuVkBgoLL>4A$?K$i|(N_Whg^?Y@

delta 83
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diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000001 b/fuzzer/CORPUS_CONNECT/rtcweb-000001
index 45b146bf4a144cda031633a802df596b61ea4876..49278b30e2795aa89d49ae271eddc72d9d51183d 100644
GIT binary patch
literal 421
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literal 421
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diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000002 b/fuzzer/CORPUS_CONNECT/rtcweb-000002
index 33e104dcb6a0f17da17cf7bfad00dd4512ca1ec2..af1c8d35cc3f3ce76052ee75ec8ecce2839d993e 100644
GIT binary patch
delta 211
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delta 211
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diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000003 b/fuzzer/CORPUS_CONNECT/rtcweb-000003
index 72b58fb68c5ee16c4d8b9897b3d0b057377f2690..737a802318a25ef61a2c985299e207d526383886 100644
GIT binary patch
literal 15
OcmZSJW?*1pfCB&k)c_Cx

literal 5
McmZSJW?*0e001=r5C8xG

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000004 b/fuzzer/CORPUS_CONNECT/rtcweb-000004
index f2b4c32eca12ce30b1e2e7c50faead5dff4fea3d..b541433df6e3c02dd534180b8951544ec4762e60 100644
GIT binary patch
literal 25
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literal 25
ZcmZQzU}li;U;Q$Mfsp|OjKCz2001q50*(Lx

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000005 b/fuzzer/CORPUS_CONNECT/rtcweb-000005
index 1d90724b5f8cad6fa160b704233a6478840a80d2..48746cbbe6d976ecee53218e2f50038f01ea8f3d 100644
GIT binary patch
literal 17
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literal 17
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diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000006 b/fuzzer/CORPUS_CONNECT/rtcweb-000006
index dba0fb24237e31b83c3815c42ac174eb842e7911..2979d6c9d8263e668a4b99b6c8da60e461828ef4 100644
GIT binary patch
literal 25
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literal 25
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diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000007 b/fuzzer/CORPUS_CONNECT/rtcweb-000007
index 154b6f0a627908c2637900c7a9b19bba801d8dcd..35000702d66d9ec7088c583fd46807b9a9d26bb2 100644
GIT binary patch
literal 17
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literal 17
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diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000008 b/fuzzer/CORPUS_CONNECT/rtcweb-000008
index 820eadefb960bb5e7718bd3f4875186bb9909457..f34d983dd5d6514efeefb8e641c5726b147509c3 100644
GIT binary patch
literal 21
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literal 21
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diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000009 b/fuzzer/CORPUS_CONNECT/rtcweb-000009
index 5b06d525544bbd68fc1c67bc959a66ae2d8f6c2c..a16bf61e8bef6d14b338a046005a3f1e5ebf4144 100644
GIT binary patch
literal 17
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literal 17
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diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000010 b/fuzzer/CORPUS_CONNECT/rtcweb-000010
index 31c5831136689d089037cad11e0eccd94b5a6cc5..0c77ccbfc556c29bfac75663d335812f5c05e47a 100644
GIT binary patch
literal 33
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literal 33
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diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000011 b/fuzzer/CORPUS_CONNECT/rtcweb-000011
index d43bd7ddbcfd23865d72bf4d543ba0fcce4f7f70..a29822bcd2b9d13eda160b9eccacd5f5fe355a3c 100644
GIT binary patch
literal 17
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literal 17
XcmZQzW?&HTU;Q$UL8kCH0}ucJAJYS=

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000012 b/fuzzer/CORPUS_CONNECT/rtcweb-000012
index adea816bb7703475eb8815887ca0ed2920c993b7..588a6849616adcd5afcfb22307f38f92468cf908 100644
GIT binary patch
literal 25
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literal 25
fcmZQ*Vqg$s;AIf<U;Q#hbm}D&ARWiR$iM&qP<{sK

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000013 b/fuzzer/CORPUS_CONNECT/rtcweb-000013
index 9e4a585f53258882aca9638911c06cab7b404a15..825816bb18e2c248774f5a1f122f788ec1a6beac 100644
GIT binary patch
literal 17
WcmZQ*Vqg#eLY~JhzB~*J42%F4+yZa_

literal 17
WcmZQ*Vqg#eLLUFsFJl-O7#IN<g#zyY

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000014 b/fuzzer/CORPUS_CONNECT/rtcweb-000014
index f9b46492bcb9933d391d06b7615d4c57d3340d7a..94e3b062e0943e01fd1924f94cc7f8dcb552e922 100644
GIT binary patch
literal 25
ecmZQ*Vqg$s;AId>Des;7xW$(TL^CilFaQ8e83uCz

literal 25
ecmZQ*Vqg$s;AIdJoqEaCfAz~45Y52IzyJVBjs{u)

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000015 b/fuzzer/CORPUS_CONNECT/rtcweb-000015
index 3fedd69ae215c531f903bdbb33036878c536ce4b..913ffa2b0609a6d14e3757ff5891a25c5556c0af 100644
GIT binary patch
literal 17
WcmZQ*Vqg#eLY|cJ-l+@>42%F4wgRmH

literal 17
WcmZQ*Vqg#eLLSknmrNNL7#IN*&H`Zo

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000016 b/fuzzer/CORPUS_CONNECT/rtcweb-000016
index dcb85000cdce6b53f794d5bd8ed2dfa6e70b729c..d5dfc52ede7f940005fced677787915f847ef24c 100644
GIT binary patch
literal 9
QcmZQzXJFt+Des*M00j*K4FCWD

literal 25
bcmZQzU}li;U;Q$kfsp|Oj2KveEFc>IE!hH>

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000017 b/fuzzer/CORPUS_CONNECT/rtcweb-000017
index 5c32e8fd553c5bc86119feb11b88c911aa3f1d37..634f886604efc805206886f0caa72521d2b1266c 100644
GIT binary patch
literal 15
OcmZSJU|?WjfCB&ks{joE

literal 41
mcmZQzW?&HTU;Q$kL8kCH0|+oPh>1?UWX8Y<<{5!0AOQfH$OWnZ

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000018 b/fuzzer/CORPUS_CONNECT/rtcweb-000018
index cad34eb596975bf704912fb1548a6d6199849ccf..9f51d75c3e753b58db25b76bd0ee98574af7beeb 100644
GIT binary patch
literal 5
McmZSJV_;wb002P%6951J

literal 37
ncmZQzW?&EyoqEZPL8kCH0|+oP2>P#nnZUpZgbWNuOh5tvdgcYE

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000019 b/fuzzer/CORPUS_CONNECT/rtcweb-000019
deleted file mode 100644
index 47925c52910bc01a96098ff75893f051197226c1..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 17
XcmZQzW?&HTU;Q$HL8kCH0}ucJALRq9

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000020 b/fuzzer/CORPUS_CONNECT/rtcweb-000020
deleted file mode 100644
index c01b3cb230950afd93f7c003c095a2c479e4caa8..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 33
kcmZQzU}uo^U;Q$Xfsp|Oj6D)_a`F}2N~@|;ixhzZ0CLX<Q~&?~

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000021 b/fuzzer/CORPUS_CONNECT/rtcweb-000021
deleted file mode 100644
index 7d12252c7e2fd330e49945209984e694bb31830b..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 17
XcmZQzW?&HTU;Q$XL8kCH0}ucJAMOLJ

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000022 b/fuzzer/CORPUS_CONNECT/rtcweb-000022
deleted file mode 100644
index 1ca33f62ee294b03dd93b7f6066bf09672adf4fc..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 25
fcmZQ*Vqg$s;AIf<U;Q#xbm}EjAf3p-$iM&qP@@L!

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000023 b/fuzzer/CORPUS_CONNECT/rtcweb-000023
deleted file mode 100644
index 378395b1fef0ef000084cb79d93c520aa14791f0..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 17
WcmZQ*Vqg#eLLUFsFJl=P7#IN<iURNe

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000024 b/fuzzer/CORPUS_CONNECT/rtcweb-000024
deleted file mode 100644
index 03e955a5d389e1cbd25d964a1c4bb50fc7e3513f..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 25
ecmZQ*Vqg$s;AIdJoqEa4fAz~)5Y52IzyJVBsRmsD

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000025 b/fuzzer/CORPUS_CONNECT/rtcweb-000025
deleted file mode 100644
index 572f005c1e0f06dbff61f40a9695f4417db5f258..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 17
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diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000026 b/fuzzer/CORPUS_CONNECT/rtcweb-000026
deleted file mode 100644
index be5d773d6db24b98eb00469ad207bb66ccef3c52..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 15
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diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000027 b/fuzzer/CORPUS_CONNECT/rtcweb-000027
deleted file mode 100644
index a1da0f94b22e90dd17586d5454d06fb01e835800..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 5
McmZSJU|?VY001cf4FCWD

diff --git a/fuzzer/CORPUS_CONNECT/rtcweb-000028 b/fuzzer/CORPUS_CONNECT/rtcweb-000028
deleted file mode 100644
index 8ff6e498647919e680b38c348deeee6568e18ed2..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 15
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000000 b/fuzzer/CORPUS_CONNECT/tsctp-000000
index 63a01fc4f992d1d6385ffb781f181b71d0bd0941..51f0a6fa2791704ed4769e2975e2d2bdb808c7f7 100644
GIT binary patch
literal 109
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000001 b/fuzzer/CORPUS_CONNECT/tsctp-000001
index 2db572e9e4c410b35f34197a7024e994ada7bd40..c246e4eadaabe50626fe8ffd06288e13b4a4b8a9 100644
GIT binary patch
literal 429
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literal 505
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000002 b/fuzzer/CORPUS_CONNECT/tsctp-000002
index 336a4481333824e70edfe2279e97b638ac7e1d37..4dd93f1c666f8e76bb424cd25a6f73b46a0bcec8 100644
GIT binary patch
literal 337
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literal 385
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000004 b/fuzzer/CORPUS_CONNECT/tsctp-000004
index 840eedf30e5e61a385f0deb6bbf4834a296d5cb5..0ae84fcd99c30d7b268e8b744df4ce4b9890322e 100644
GIT binary patch
literal 217
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literal 45
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000005 b/fuzzer/CORPUS_CONNECT/tsctp-000005
index e540d44eb18c8633e27ed44e6215f3206a20ed4e..0a15a24f27edafb0e3bde2ee1210074bf73526d8 100644
GIT binary patch
literal 217
acmZQz;AXfHc=PxI1_lO3AXaxACIA5G)iz}S

literal 45
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000006 b/fuzzer/CORPUS_CONNECT/tsctp-000006
index 00019dc491cb3f43f36de21e6a1fbbe3e4a0cf0b..d64c7244bc38df1848fc5780daf77efa80e4a4a9 100644
GIT binary patch
literal 17
XcmZQzW?&Eqym@>+gG~N^1|R?cBjyAy

literal 45
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000007 b/fuzzer/CORPUS_CONNECT/tsctp-000007
index c7f499d34e6ec4ad1ee455454ac8553583c13e5b..51feb52060e9e8ea622a8a59704690a5176e327e 100644
GIT binary patch
literal 17
XcmZQzW?&Eqym@>9gG~N^1|R?cBku$+

literal 1041
ecmZQzU}h0GGW+dM1_)4h90j8xFd70QHUt3FlLwOk

diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000008 b/fuzzer/CORPUS_CONNECT/tsctp-000008
index 94d5c0bd0024fe4b3d1db13497c8580ee40f4525..a39021531eb22f03ed70c9792c0c41106b53f409 100644
GIT binary patch
literal 9
QcmZQzXJFuPNYmN?00W-^kN^Mx

literal 1041
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000009 b/fuzzer/CORPUS_CONNECT/tsctp-000009
index 4d49f378e3faa97698845c689f26c699bc343acc..634f886604efc805206886f0caa72521d2b1266c 100644
GIT binary patch
literal 15
OcmZSJU|?WjfCB&ks{joE

literal 1041
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000010 b/fuzzer/CORPUS_CONNECT/tsctp-000010
index 2829bb6aea87d49f086e394ee0d5e1d68a9752d4..9f51d75c3e753b58db25b76bd0ee98574af7beeb 100644
GIT binary patch
literal 5
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literal 1041
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000011 b/fuzzer/CORPUS_CONNECT/tsctp-000011
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index a39993144b1947a8b42d06e9e32f6d8ebd24dc32..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 1041
hcmZQz;ARmxGW+dc1_lNeAXaxA1*0J_8UiCW1OOFM2crN0

diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000012 b/fuzzer/CORPUS_CONNECT/tsctp-000012
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index c81a1768b4a4af5e75782515efc4327fe8207c8f..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 45
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000013 b/fuzzer/CORPUS_CONNECT/tsctp-000013
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index 9457b75de69c5991afb9c7f6fde68abe4bc20806..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 17
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000014 b/fuzzer/CORPUS_CONNECT/tsctp-000014
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index 777f11b5a51ff3c3933efe3fd320228e3fab033c..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 17
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000015 b/fuzzer/CORPUS_CONNECT/tsctp-000015
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index e749a26e054d0aa86edf076878e7c75003d1b56c..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 17
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000016 b/fuzzer/CORPUS_CONNECT/tsctp-000016
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index ed8f9fc0a63ec59ab223aeb79f8eeebb2e4c0bcd..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 17
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000017 b/fuzzer/CORPUS_CONNECT/tsctp-000017
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index 1b15ab1999b63355d27a40ba3cb877f314751b4a..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 9
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000020 b/fuzzer/CORPUS_CONNECT/tsctp-000020
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index 69d60102b3da59cfd8291acd6b54e099cbe75c26..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 137
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000021 b/fuzzer/CORPUS_CONNECT/tsctp-000021
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index 1c09a6b57b55e6a52a273a6faeef6efa3e5cdcec..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 529
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000022 b/fuzzer/CORPUS_CONNECT/tsctp-000022
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index 22317e0ca159fc9a9f31c8fc5a4c7f162bbbd23c..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 401
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000024 b/fuzzer/CORPUS_CONNECT/tsctp-000024
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index b12abccdec7cb59631ebd09a6f9d6b42b4e9cbd4..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 45
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000025 b/fuzzer/CORPUS_CONNECT/tsctp-000025
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index 9afda34a7fd34b92f95a941541e6ef3cb87c1520..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 45
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000026 b/fuzzer/CORPUS_CONNECT/tsctp-000026
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index 85ddaf14b49649aa3e08a599ead653a0178e2463..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 45
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000027 b/fuzzer/CORPUS_CONNECT/tsctp-000027
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index ce9027d9aa31d8fe58d80bcb17f10f3b7802f734..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 1145
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000028 b/fuzzer/CORPUS_CONNECT/tsctp-000028
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index be15835731725627900eb479edb188aaa663a05b..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 1361
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000029 b/fuzzer/CORPUS_CONNECT/tsctp-000029
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index e7338b70bbe80f309e5a612bea3d642da41231e9..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 929
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-i-data-000002 b/fuzzer/CORPUS_CONNECT/tsctp-i-data-000002
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000023 b/fuzzer/CORPUS_CONNECT/tsctp-i-data-000003
similarity index 100%
rename from fuzzer/CORPUS_CONNECT/tsctp-000023
rename to fuzzer/CORPUS_CONNECT/tsctp-i-data-000003
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-i-data-000008 b/fuzzer/CORPUS_CONNECT/tsctp-i-data-000008
new file mode 100644
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diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000018 b/fuzzer/CORPUS_CONNECT/tsctp-i-data-000009
similarity index 100%
rename from fuzzer/CORPUS_CONNECT/tsctp-000018
rename to fuzzer/CORPUS_CONNECT/tsctp-i-data-000009
diff --git a/fuzzer/CORPUS_CONNECT/tsctp-000019 b/fuzzer/CORPUS_CONNECT/tsctp-i-data-000010
similarity index 100%
rename from fuzzer/CORPUS_CONNECT/tsctp-000019
rename to fuzzer/CORPUS_CONNECT/tsctp-i-data-000010
diff --git a/fuzzer/build-fuzzer.sh b/fuzzer/build-fuzzer.sh
index e6cb6bc71..8016ec49f 100755
--- a/fuzzer/build-fuzzer.sh
+++ b/fuzzer/build-fuzzer.sh
@@ -41,7 +41,7 @@ pwd
 find . -iwholename '*cmake*' -not -name CMakeLists.txt -delete
 
 # Build with ASAN / MSAN
-cmake -Dsctp_build_fuzzer=1 -Dsctp_build_programs=0 -Dsctp_invariants=1 -Dsctp_sanitizer_address=1 -DCMAKE_LINKER="$CC" -DCMAKE_C_COMPILER="$CC" -DCMAKE_BUILD_TYPE=Debug .
-#cmake -Dsctp_build_fuzzer=1 -Dsctp_build_programs=0 -Dsctp_invariants=1 -Dsctp_sanitizer_memory=1 -DCMAKE_LINKER="$CC" -DCMAKE_C_COMPILER="$CC" -DCMAKE_BUILD_TYPE=RelWithDebInfo .
+cmake -Dsctp_build_fuzzer=1 -Dsctp_build_programs=0 -Dsctp_invariants=1 -Dsctp_sanitizer_address=1 -DCMAKE_LINKER="$CC" -DCMAKE_C_COMPILER="$CC" .
+#cmake -Dsctp_build_fuzzer=1 -Dsctp_build_programs=0 -Dsctp_invariants=1 -Dsctp_sanitizer_memory=1 -DCMAKE_LINKER="$CC" -DCMAKE_C_COMPILER="$CC" .
 
 make -j"$NPROC"
diff --git a/fuzzer/check-input.sh b/fuzzer/check-input.sh
index 31f117a0f..fbcbe2644 100755
--- a/fuzzer/check-input.sh
+++ b/fuzzer/check-input.sh
@@ -18,7 +18,7 @@ echo "########## Beginning Fuzzer Chain"
 echo ""
 
 set +e
-./fuzzer_connect_multi_verbose -timeout=30 $1 > $1.log 2>&1
+./fuzzer_connect_multi_verbose -timeout=10 $1 > $1.log 2>&1
 FUZZER_RETVAL=$?
 set -e
 
diff --git a/fuzzer/crashtest.py b/fuzzer/crashtest.py
index ce51e0af0..5338db091 100755
--- a/fuzzer/crashtest.py
+++ b/fuzzer/crashtest.py
@@ -5,7 +5,6 @@
 import re
 
 reportdir = "reports/"
-fuzzer = "./fuzzer_connect_multi"
 
 class bcolors:
 	HEADER = '\033[95m'
diff --git a/fuzzer/fuzzer_connect.c b/fuzzer/fuzzer_connect.c
index 79505db6e..be44941d7 100644
--- a/fuzzer/fuzzer_connect.c
+++ b/fuzzer/fuzzer_connect.c
@@ -39,9 +39,16 @@
 
 //#define FUZZ_VERBOSE
 #define FUZZ_INTERLEAVING
-//#define FUZZ_EXPLICIT_EOR
 #define FUZZ_STREAM_RESET
-#define FUZZ_DISABLE_LINGER
+
+#define FUZZ_B_INJECT_INIT_ACK        (1 << 0)
+#define FUZZ_B_INJECT_COOKIE_ACK      (1 << 1)
+#define FUZZ_B_SEND_DATA              (1 << 2)
+#define FUZZ_B_SEND_STREAM_RESET      (1 << 3)
+#define FUZZ_B_INJECT_DATA            (1 << 4)
+#define FUZZ_B_I_DATA_SUPPORT         (1 << 5)
+#define FUZZ_B_RESERVED1              (1 << 6)
+#define FUZZ_B_RESERVED2              (1 << 7)
 
 #define BUFFER_SIZE 4096
 #define COMMON_HEADER_SIZE 12
@@ -70,6 +77,7 @@ dump_packet(const void *buffer, size_t bufferlen, int inout) {
 #endif // FUZZ_VERBOSE
 }
 
+
 static int
 conn_output(void *addr, void *buf, size_t length, uint8_t tos, uint8_t set_df)
 {
@@ -176,7 +184,7 @@ LLVMFuzzerTestOneInput(const uint8_t* data, size_t data_size)
 		SCTP_STREAM_CHANGE_EVENT,
 		SCTP_SEND_FAILED_EVENT
 	};
-	int enable;
+	int optval;
 	int result;
 	struct sctp_initmsg initmsg;
 #if defined(FUZZ_STREAM_RESET) || defined(FUZZ_INTERLEAVING)
@@ -184,52 +192,41 @@ LLVMFuzzerTestOneInput(const uint8_t* data, size_t data_size)
 #endif // defined(FUZZ_STREAM_RESET) || defined(FUZZ_INTERLEAVING)
 
 	// WITH COMMON HEADER!
-	char fuzz_init_ack[] = "\x13\x89\x13\x88\x54\xc2\x7c\x46\x00\x00\x00\x00\x02\x00\x01\xf8" \
-		"\xc7\xa1\xb0\x4d\x00\x1c\x71\xc7\x00\x0a\xff\xff\x03\x91\x94\x1b" \
-		"\x80\x00\x00\x04\xc0\x00\x00\x04\x80\x08\x00\x09\xc0\x0f\xc1\x80" \
-		"\x82\x00\x00\x00\x80\x02\x00\x24\x61\x6c\x7e\x52\x2a\xdb\xe0\xa2" \
-		"\xaa\x78\x25\x1e\x12\xc5\x01\x9e\x4c\x60\x16\xdf\x01\x6d\xa1\xd5" \
-		"\xcd\xbe\xa7\x5d\xa2\x73\xf4\x1b\x80\x04\x00\x08\x00\x03\x00\x01" \
-		"\x80\x03\x00\x07\x00\x80\xc1\x00\x00\x06\x00\x14\x2a\x02\xc6\xa0" \
-		"\x40\x15\x00\x11\x00\x00\x00\x00\x00\x00\x00\x83\x00\x05\x00\x08" \
-		"\xd4\xc9\x79\x53\x00\x07\x01\x80\x4b\x41\x4d\x45\x2d\x42\x53\x44" \
-		"\x20\x31\x2e\x31\x00\x00\x00\x00\x64\x11\x49\x00\x00\x00\x00\x00" \
-		"\xac\xde\x0c\x00\x00\x00\x00\x00\x60\xea\x00\x00\x00\x00\x00\x00" \
-		"\x00\x00\x00\x00\xb2\xd4\x38\x45\xc7\xa1\xb0\x4d\xd4\xc9\x79\x52" \
+	char fuzz_init_ack[] = "\x13\x89\x13\x88\x49\xa4\xac\xb2\x00\x00\x00\x00\x02\x00\x01\xb4" \
+		"\x2b\xe8\x47\x40\x00\x1c\x71\xc7\xff\xff\xff\xff\xed\x69\x58\xec" \
+		"\xc0\x06\x00\x08\x00\x00\x07\xc4\x80\x00\x00\x04\xc0\x00\x00\x04" \
+		"\x80\x08\x00\x0b\xc0\xc2\x0f\xc1\x80\x82\x40\x00\x80\x02\x00\x24" \
+		"\x40\x39\xcf\x32\xd6\x60\xcf\xfa\x3f\x2f\xa9\x52\xed\x2b\xf2\xe6" \
+		"\x2f\xb7\x81\x96\xf8\xda\xe9\xa0\x62\x01\x79\xe1\x0d\x5f\x38\xaa" \
+		"\x80\x04\x00\x08\x00\x03\x00\x01\x80\x03\x00\x06\x80\xc1\x00\x00" \
+		"\x00\x07\x01\x50\x4b\x41\x4d\x45\x2d\x42\x53\x44\x20\x31\x2e\x31" \
+		"\x00\x00\x00\x00\x64\xdb\x63\x00\x00\x00\x00\x00\xc9\x76\x03\x00" \
+		"\x00\x00\x00\x00\x60\xea\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" \
+		"\xb2\xac\xa4\x49\x2b\xe8\x47\x40\xd4\xc9\x79\x52\x00\x00\x00\x00" \
+		"\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\xd4\xc9\x79\x53" \
 		"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00" \
-		"\xd4\xc9\x79\x53\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" \
-		"\x05\x00\x00\x00\x00\x00\x00\x00\xd9\x05\x13\x89\x01\x01\x00\x00" \
-		"\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x80\x45\x38\xd4\xb2" \
-		"\x00\x1c\x71\xc7\x00\x01\xff\xff\xac\x40\x9b\x94\x80\x00\x00\x04" \
-		"\xc0\x00\x00\x04\x80\x08\x00\x09\xc0\x0f\xc1\x80\x82\x00\x00\x00" \
-		"\x80\x02\x00\x24\xc8\x24\x46\x8c\x7e\x88\x2e\xb7\x88\x8b\xdd\xa1" \
-		"\x55\x8b\xb4\xc0\x26\xe3\x21\xbb\xb0\x66\xfd\xb2\xd4\xde\xf9\x77" \
-		"\x4f\xe4\x7c\xbf\x80\x04\x00\x08\x00\x03\x00\x01\x80\x03\x00\x07" \
-		"\x00\x80\xc1\x00\x00\x0c\x00\x08\x00\x05\x00\x06\x00\x06\x00\x14" \
-		"\x2a\x02\xc6\xa0\x40\x15\x00\x11\x00\x00\x00\x00\x00\x00\x00\x82" \
-		"\x00\x05\x00\x08\xd4\xc9\x79\x52\x02\x00\x01\xf8\xc7\xa1\xb0\x4d" \
-		"\x00\x1c\x71\xc7\x00\x01\xff\xff\x03\x91\x94\x1b\x80\x00\x00\x04" \
-		"\xc0\x00\x00\x04\x80\x08\x00\x09\xc0\x0f\xc1\x80\x82\x00\x00\x00" \
-		"\x80\x02\x00\x24\x61\x6c\x7e\x52\x2a\xdb\xe0\xa2\xaa\x78\x25\x1e" \
-		"\x12\xc5\x01\x9e\x4c\x60\x16\xdf\x01\x6d\xa1\xd5\xcd\xbe\xa7\x5d" \
-		"\xa2\x73\xf4\x1b\x80\x04\x00\x08\x00\x03\x00\x01\x80\x03\x00\x07" \
-		"\x00\x80\xc1\x00\x00\x06\x00\x14\x2a\x02\xc6\xa0\x40\x15\x00\x11" \
-		"\x00\x00\x00\x00\x00\x00\x00\x83\x00\x05\x00\x08\xd4\xc9\x79\x53" \
-		"\x64\x30\x8a\xb9\x7c\xe5\x93\x69\x52\xa9\xc8\xd5\xa1\x1b\x7d\xef" \
-		"\xea\xfa\x23\x32";
+		"\x00\x00\x00\x00\x5a\x76\x13\x89\x01\x00\x00\x00\x00\x00\x00\x00" \
+		"\x00\x00\x00\x00\x01\x00\x00\x62\x49\xa4\xac\xb2\x00\x1c\x71\xc7" \
+		"\x00\x01\xff\xff\x82\xe6\xc8\x44\x80\x00\x00\x04\xc0\x00\x00\x04" \
+		"\x80\x08\x00\x0b\xc0\xc2\x0f\xc1\x80\x82\x40\x00\x80\x02\x00\x24" \
+		"\xb6\xbb\xb5\x7f\xbb\x4b\x0e\xb5\x42\xf6\x75\x18\x4f\x79\x0f\x24" \
+		"\x1c\x44\x0b\xd6\x62\xa9\x84\xe7\x2c\x3c\x7f\xad\x1b\x67\x81\x57" \
+		"\x80\x04\x00\x08\x00\x03\x00\x01\x80\x03\x00\x06\x80\xc1\x00\x00" \
+		"\x00\x0c\x00\x06\x00\x05\x00\x00\x02\x00\x01\xb4\x2b\xe8\x47\x40" \
+		"\x00\x1c\x71\xc7\x00\x01\xff\xff\xed\x69\x58\xec\xc0\x06\x00\x08" \
+		"\x00\x00\x07\xc4\x80\x00\x00\x04\xc0\x00\x00\x04\x80\x08\x00\x0b" \
+		"\xc0\xc2\x0f\xc1\x80\x82\x40\x00\x80\x02\x00\x24\x40\x39\xcf\x32" \
+		"\xd6\x60\xcf\xfa\x3f\x2f\xa9\x52\xed\x2b\xf2\xe6\x2f\xb7\x81\x96" \
+		"\xf8\xda\xe9\xa0\x62\x01\x79\xe1\x0d\x5f\x38\xaa\x80\x04\x00\x08" \
+		"\x00\x03\x00\x01\x80\x03\x00\x06\x80\xc1\x00\x00\x81\xe1\x1e\x81" \
+		"\xea\x41\xeb\xf0\x12\xd9\x74\xbe\x13\xfd\x4b\x6c\x5c\xa2\x8f\x00";
 
 	// WITH COMMON HEADER!
 	char fuzz_cookie_ack[] = "\x13\x89\x13\x88\x54\xc2\x7c\x46\x00\x00\x00\x00\x0b\x00\x00\x04";
 
 	// WITH COMMON HEADER!
-	char fuzz_abort[] = "\x13\x89\x13\x88\x54\xc2\x7c\x46\x00\x00\x00\x00\x06\x00\x00\x08\x00\x0c\x00\x04";
-
-	// WITH COMMON HEADER!
-	char fuzz_i_data[] = "\x13\x89\x13\x88\x54\xc2\x7c\x46\x00\x00\x00\x00" \
-		"\x00\x1b\x04\x42\xa3\x58\x90\xe2\xba\x9e\x8c\xfc\x08\x00\x45\x02" \
-		"\x04\x34\x00\x00\x40\x00\x40\x84\x9a\x0b\xd4\xc9\x79\x52\xd4\xc9" \
-		"\x79\x53\x65\x75\x13\x89\x11\x97\x93\x37\x26\x6c\xb7\x65\x40\x02" \
-		"\x04\x14\x96\xff\xad\xc1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" \
+	char fuzz_i_data[] = "\x13\x89\x13\x88\x07\x01\x6c\xd3\x00\x00\x00\x00\x40\x03" \
+		"\x00\xdc\x2d\x2b\x46\xd4\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" \
 		"\x00\x27\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
 		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
 		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
@@ -242,6 +239,11 @@ LLVMFuzzerTestOneInput(const uint8_t* data, size_t data_size)
 		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
 		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
 		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
+		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41";
+
+	// WITH COMMON HEADER!
+	char fuzz_data[] = "\x13\x89\x13\x88\x27\xc4\xbf\xdf\x00\x00\x00\x00\x00\x03" \
+		"\x00\xd8\x79\x64\xb7\xc1\x00\x00\x00\x00\x00\x00\x00\x27\x41\x41" \
 		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
 		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
 		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
@@ -254,47 +256,8 @@ LLVMFuzzerTestOneInput(const uint8_t* data, size_t data_size)
 		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
 		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
 		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41" \
-		"\x41\x41";
+		"\x41\x41\x41\x41\x41\x41";
+
 
 	char fuzz_common_header[] = "\x13\x89\x13\x88\x54\xc2\x7c\x46\x00\x00\x00\x00";
 
@@ -326,7 +289,6 @@ LLVMFuzzerTestOneInput(const uint8_t* data, size_t data_size)
 	assert(result == 0);
 
 	memset(&event, 0, sizeof(event));
-	event.se_assoc_id = SCTP_ALL_ASSOC;
 	event.se_on = 1;
 	for (i = 0; i < (sizeof(event_types) / sizeof(uint16_t)); i++) {
 		event.se_type = event_types[i];
@@ -334,19 +296,13 @@ LLVMFuzzerTestOneInput(const uint8_t* data, size_t data_size)
 		assert(result == 0);
 	}
 
-	enable = 1;
-	result = usrsctp_setsockopt(socket_client, IPPROTO_SCTP, SCTP_RECVRCVINFO, &enable, sizeof(enable));
-	assert(result == 0);
-
-	enable = 1;
-	result = usrsctp_setsockopt(socket_client, IPPROTO_SCTP, SCTP_RECVNXTINFO, &enable, sizeof(enable));
+	optval = 1;
+	result = usrsctp_setsockopt(socket_client, IPPROTO_SCTP, SCTP_RECVRCVINFO, &optval, sizeof(optval));
 	assert(result == 0);
 
-#if defined(FUZZ_EXPLICIT_EOR)
-	enable = 1;
-	result = usrsctp_setsockopt(socket_client, IPPROTO_SCTP, SCTP_EXPLICIT_EOR, &enable, sizeof(enable));
+	optval = 1;
+	result = usrsctp_setsockopt(socket_client, IPPROTO_SCTP, SCTP_RECVNXTINFO, &optval, sizeof(optval));
 	assert(result == 0);
-#endif // defined(FUZZ_EXPLICIT_EOR)
 
 #if defined(FUZZ_STREAM_RESET)
 	assoc_val.assoc_id = SCTP_ALL_ASSOC;
@@ -359,14 +315,17 @@ LLVMFuzzerTestOneInput(const uint8_t* data, size_t data_size)
 #if !defined(SCTP_INTERLEAVING_SUPPORTED)
 #define SCTP_INTERLEAVING_SUPPORTED 0x00001206
 #endif // !defined(SCTP_INTERLEAVING_SUPPORTED)
-	enable = 2;
-	result = usrsctp_setsockopt(socket_client, IPPROTO_SCTP, SCTP_FRAGMENT_INTERLEAVE, &enable, sizeof(enable));
-	assert(result == 0);
 
-	memset(&assoc_val, 0, sizeof(assoc_val));
-	assoc_val.assoc_value = 1;
-	result = usrsctp_setsockopt(socket_client, IPPROTO_SCTP, SCTP_INTERLEAVING_SUPPORTED, &assoc_val, sizeof(assoc_val));
-	assert(result == 0);
+	if (data[0] & FUZZ_B_I_DATA_SUPPORT) {
+		optval = 2;
+		result = usrsctp_setsockopt(socket_client, IPPROTO_SCTP, SCTP_FRAGMENT_INTERLEAVE, &optval, sizeof(optval));
+		assert(result == 0);
+
+		memset(&assoc_val, 0, sizeof(assoc_val));
+		assoc_val.assoc_value = 1;
+		result = usrsctp_setsockopt(socket_client, IPPROTO_SCTP, SCTP_INTERLEAVING_SUPPORTED, &assoc_val, sizeof(assoc_val));
+		assert(result == 0);
+	}
 #endif // defined(FUZZ_INTERLEAVING)
 
 	memset((void *)&bind6, 0, sizeof(struct sockaddr_in6));
@@ -380,6 +339,11 @@ LLVMFuzzerTestOneInput(const uint8_t* data, size_t data_size)
 	result = usrsctp_bind(socket_client, (struct sockaddr *)&bind6, sizeof(bind6));
 	assert(result == 0);
 
+	// Disable Nagle.
+	optval = 1;
+	result = usrsctp_setsockopt(socket_client, IPPROTO_SCTP, SCTP_NODELAY, &optval, sizeof(optval));
+	assert(result == 0);
+
 	usrsctp_set_upcall(socket_client, handle_upcall, NULL);
 
 	memset(&sconn, 0, sizeof(struct sockaddr_conn));
@@ -394,17 +358,17 @@ LLVMFuzzerTestOneInput(const uint8_t* data, size_t data_size)
 	result = usrsctp_connect(socket_client, (struct sockaddr *)&sconn, sizeof(struct sockaddr_conn));
 	assert(result == 0 || errno == EINPROGRESS);
 
-	if (data[0] & (1 << 0)) {
+	if (data[0] & FUZZ_B_INJECT_INIT_ACK) {
 		fuzzer_printf("Injecting INIT-ACK\n");
 
 		common_header = (struct sctp_common_header*) fuzz_init_ack;
 		common_header->verification_tag = assoc_vtag;
 
-		dump_packet(fuzz_init_ack, 516, SCTP_DUMP_INBOUND);
-		usrsctp_conninput((void *)1, fuzz_init_ack, 516, 0);
+		dump_packet(fuzz_init_ack, 448, SCTP_DUMP_INBOUND);
+		usrsctp_conninput((void *)1, fuzz_init_ack, 448, 0);
 	}
 
-	if (data[0] & (1 << 1)) {
+	if (data[0] & FUZZ_B_INJECT_COOKIE_ACK) {
 		fuzzer_printf("Injecting COOKIE-ACK\n");
 
 		common_header = (struct sctp_common_header*) fuzz_cookie_ack;
@@ -414,32 +378,18 @@ LLVMFuzzerTestOneInput(const uint8_t* data, size_t data_size)
 		usrsctp_conninput((void *)1, fuzz_cookie_ack, 16, 0);
 	}
 
-	// Required: INIT-ACK and COOKIE-ACK
-	if (data[0] & (1 << 0) &&
-		data[0] & (1 << 1) &&
-		data[0] & (1 << 2)) {
+	if (data[0] & FUZZ_B_INJECT_INIT_ACK &&
+		data[0] & FUZZ_B_INJECT_COOKIE_ACK &&
+		data[0] & FUZZ_B_SEND_DATA) {
 		const char *sendbuffer = "Geologie ist keine richtige Wissenschaft!";
 		fuzzer_printf("Calling usrsctp_sendv()\n");
 		usrsctp_sendv(socket_client, sendbuffer, strlen(sendbuffer), NULL, 0, NULL, 0, SCTP_SENDV_NOINFO, 0);
 	}
 
 	// Required: INIT-ACK and COOKIE-ACK
-	if (data[0] & (1 << 0) &&
-		data[0] & (1 << 1) &&
-		data[0] & (1 << 3)) {
-		fuzzer_printf("Injecting I-DATA\n");
-
-		common_header = (struct sctp_common_header*) fuzz_i_data;
-		common_header->verification_tag = assoc_vtag;
-
-		dump_packet(fuzz_i_data, 1102, SCTP_DUMP_INBOUND);
-		usrsctp_conninput((void *)1, fuzz_i_data, 1102, 0);
-	}
-
-	// Required: INIT-ACK and COOKIE-ACK
-	if (data[0] & (1 << 0) &&
-		data[0] & (1 << 1) &&
-		data[0] & (1 << 4)) {
+	if (data[0] & FUZZ_B_INJECT_INIT_ACK &&
+		data[0] & FUZZ_B_INJECT_COOKIE_ACK &&
+		data[0] & FUZZ_B_SEND_STREAM_RESET) {
 		fuzzer_printf("Sending Stream Reset for all streams\n");
 
 		struct sctp_reset_streams srs;
@@ -449,6 +399,26 @@ LLVMFuzzerTestOneInput(const uint8_t* data, size_t data_size)
 		assert(result == 0);
 	}
 
+	// Required: INIT-ACK and COOKIE-ACK
+	if (data[0] & FUZZ_B_INJECT_INIT_ACK &&
+		data[0] & FUZZ_B_INJECT_COOKIE_ACK &&
+		data[0] & FUZZ_B_INJECT_DATA) {
+
+		if (data[0] & FUZZ_B_I_DATA_SUPPORT) {
+			fuzzer_printf("Injecting I-DATA\n");
+			common_header = (struct sctp_common_header*) fuzz_i_data;
+			common_header->verification_tag = assoc_vtag;
+			dump_packet(fuzz_i_data, 232, SCTP_DUMP_INBOUND);
+			usrsctp_conninput((void *)1, fuzz_i_data, 232, 0);
+		} else {
+			fuzzer_printf("Injecting DATA\n");
+			common_header = (struct sctp_common_header*) fuzz_data;
+			common_header->verification_tag = assoc_vtag;
+			dump_packet(fuzz_data, 228, SCTP_DUMP_INBOUND);
+			usrsctp_conninput((void *)1, fuzz_data, 228, 0);
+		}
+	}
+
 	fuzz_packet_buffer = malloc(data_size - 1 + COMMON_HEADER_SIZE);
 	memcpy(fuzz_packet_buffer, fuzz_common_header, COMMON_HEADER_SIZE); // common header
 	memcpy(fuzz_packet_buffer + COMMON_HEADER_SIZE, data + 1, data_size - 1);
diff --git a/fuzzer/fuzzer_connect_multi.sh b/fuzzer/fuzzer_connect_multi.sh
index 4e2f92011..27b4a6757 100755
--- a/fuzzer/fuzzer_connect_multi.sh
+++ b/fuzzer/fuzzer_connect_multi.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-export ASAN_OPTIONS=abort_on_error=1:disable_core=0:unmap_shadow_on_exit=1:disable_coredump=0:detect_leaks=1
+#export ASAN_OPTIONS=abort_on_error=1:disable_core=0:unmap_shadow_on_exit=1:disable_coredump=0:detect_leaks=1
 ulimit -c unlimited
 mkdir -p CORPUS_CONNECT
 
@@ -19,4 +19,4 @@ fi
 echo "$NPROC"
 
 
-./fuzzer_connect_multi -jobs=64 -timeout=10 -max_len=32000 CORPUS_CONNECT
+./fuzzer_connect_multi -jobs=64 -timeout=10 -max_len=32000 -use_value_profile=1 CORPUS_CONNECT
diff --git a/programs/programs_helper.c b/programs/programs_helper.c
index 49185c254..0883740f6 100644
--- a/programs/programs_helper.c
+++ b/programs/programs_helper.c
@@ -52,10 +52,24 @@ void
 debug_printf_stack(const char *format, ...)
 {
 	va_list ap;
+	char charbuf[1024];
+	static struct timeval time_main;
+	struct timeval time_now;
+	struct timeval time_delta;
+
+	if (time_main.tv_sec == 0  && time_main.tv_usec == 0) {
+		gettimeofday(&time_main, NULL);
+	}
+
+	gettimeofday(&time_now, NULL);
+	timersub(&time_now, &time_main, &time_delta);
 
 	va_start(ap, format);
-	vprintf(format, ap);
+	//vfprintf(stderr, format, ap);
+	vsnprintf(charbuf, 1024, format, ap);
 	va_end(ap);
+
+	fprintf(stderr, "[S][%u.%03u] %s", (unsigned int) time_delta.tv_sec, (unsigned int) time_delta.tv_usec / 1000, charbuf);
 }
 
 static void
diff --git a/usrsctplib/CMakeLists.txt b/usrsctplib/CMakeLists.txt
index d6652c1cd..3cc425eaf 100644
--- a/usrsctplib/CMakeLists.txt
+++ b/usrsctplib/CMakeLists.txt
@@ -43,6 +43,8 @@ set(includedir 				${prefix}/include/usrsctp)
 set(CMAKE_REQUIRED_INCLUDES ${CMAKE_CURRENT_SOURCE_DIR})
 set(CMAKE_MACOSX_RPATH 		1)
 
+include(CheckCCompilerFlag)
+
 add_definitions(-D__Userspace__)
 add_definitions(-D__Userspace_os_${CMAKE_SYSTEM_NAME})
 add_definitions(-DSCTP_SIMPLE_ALLOCATOR)
@@ -53,11 +55,16 @@ add_definitions(-DSCTP_PROCESS_LEVEL_LOCKS)
 # OS DEPENDENT
 #################################################
 
-check_c_compiler_flag(-Wno-address-of-packed-member has_wno_address_of_packet_member)
-if (has_wno_address_of_packet_member)
+check_c_compiler_flag(-Wno-address-of-packed-member has_wno_address_of_packed_member)
+if (has_wno_address_of_packed_member)
 	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-address-of-packed-member")
 endif ()
 
+check_c_compiler_flag(-Wno-deprecated-declarations has_wno_deprecated_declarations)
+if (has_wno_deprecated_declarations)
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-deprecated-declarations")
+endif ()
+
 if (CMAKE_SYSTEM_NAME MATCHES "Linux")
 	add_definitions(-D_GNU_SOURCE)
 endif ()
@@ -69,7 +76,6 @@ endif ()
 if (CMAKE_SYSTEM_NAME MATCHES "Darwin")
 	add_definitions(-U__APPLE__)
 	add_definitions(-D__APPLE_USE_RFC_2292)
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-deprecated-declarations")
 endif ()
 
 if (CMAKE_SYSTEM_NAME MATCHES "DragonFly")
diff --git a/usrsctplib/netinet/sctp_auth.c b/usrsctplib/netinet/sctp_auth.c
index 65571df2d..8d188f968 100755
--- a/usrsctplib/netinet/sctp_auth.c
+++ b/usrsctplib/netinet/sctp_auth.c
@@ -1650,6 +1650,12 @@ sctp_handle_auth(struct sctp_tcb *stcb, struct sctp_auth_chunk *auth,
 		"SCTP AUTH Chunk: shared key %u, HMAC id %u\n",
 		shared_key_id, hmac_id);
 
+#if defined(__Userspace__)
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+	return (0);
+#endif
+#endif
+
 	/* is the indicated HMAC supported? */
 	if (!sctp_auth_is_supported_hmac(stcb->asoc.local_hmacs, hmac_id)) {
 		struct mbuf *op_err;
@@ -1729,12 +1735,6 @@ sctp_handle_auth(struct sctp_tcb *stcb, struct sctp_auth_chunk *auth,
 	sctp_zero_m(m, offset + sizeof(*auth), SCTP_SIZE32(digestlen));
 	(void)sctp_compute_hmac_m(hmac_id, stcb->asoc.authinfo.recv_key,
 	    m, offset, computed_digest);
-
-#if defined(__Userspace__)
-#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
-	return (0);
-#endif
-#endif
 	/* compare the computed digest with the one in the AUTH chunk */
 	if (timingsafe_bcmp(digest, computed_digest, digestlen) != 0) {
 		SCTP_STAT_INCR(sctps_recvauthfailed);

From d520eafea3039ba883f3a449f55c4fb0283594f7 Mon Sep 17 00:00:00 2001
From: Michael Tuexen <tuexen@fh-muenster.de>
Date: Thu, 12 Mar 2020 18:32:59 +0100
Subject: [PATCH 8/8] Undo whitespace changes to the FreeBSD sources introduced
 by the last commit.

---
 usrsctplib/netinet/sctp_auth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usrsctplib/netinet/sctp_auth.c b/usrsctplib/netinet/sctp_auth.c
index 8d188f968..640858b92 100755
--- a/usrsctplib/netinet/sctp_auth.c
+++ b/usrsctplib/netinet/sctp_auth.c
@@ -1655,7 +1655,6 @@ sctp_handle_auth(struct sctp_tcb *stcb, struct sctp_auth_chunk *auth,
 	return (0);
 #endif
 #endif
-
 	/* is the indicated HMAC supported? */
 	if (!sctp_auth_is_supported_hmac(stcb->asoc.local_hmacs, hmac_id)) {
 		struct mbuf *op_err;
@@ -1735,6 +1734,7 @@ sctp_handle_auth(struct sctp_tcb *stcb, struct sctp_auth_chunk *auth,
 	sctp_zero_m(m, offset + sizeof(*auth), SCTP_SIZE32(digestlen));
 	(void)sctp_compute_hmac_m(hmac_id, stcb->asoc.authinfo.recv_key,
 	    m, offset, computed_digest);
+
 	/* compare the computed digest with the one in the AUTH chunk */
 	if (timingsafe_bcmp(digest, computed_digest, digestlen) != 0) {
 		SCTP_STAT_INCR(sctps_recvauthfailed);