diff --git a/usrsctplib/netinet/sctp_input.h b/usrsctplib/netinet/sctp_input.h
new file mode 100755
index 0000000..bc4cf42
--- /dev/null
+++ b/usrsctplib/netinet/sctp_input.h
@@ -0,0 +1,66 @@
+/*-
+ * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
+ * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * a) Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * b) Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the distribution.
+ *
+ * c) Neither the name of Cisco Systems, Inc. nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef __FreeBSD__
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: head/sys/netinet/sctp_input.h 310590 2016-12-26 11:06:41Z tuexen $");
+#endif
+
+#ifndef _NETINET_SCTP_INPUT_H_
+#define _NETINET_SCTP_INPUT_H_
+
+#if defined(_KERNEL) || defined(__Userspace__)
+void
+sctp_common_input_processing(struct mbuf **, int, int, int,
+                             struct sockaddr *, struct sockaddr *,
+                             struct sctphdr *, struct sctp_chunkhdr *,
+#if !defined(SCTP_WITH_NO_CSUM)
+                             uint8_t,
+#endif
+                             uint8_t,
+#if defined(__FreeBSD__)
+                             uint8_t, uint32_t, uint16_t,
+#endif
+                             uint32_t, uint16_t);
+
+struct sctp_stream_reset_request *
+sctp_find_stream_reset(struct sctp_tcb *stcb, uint32_t seq,
+    struct sctp_tmit_chunk **bchk);
+
+void sctp_reset_in_stream(struct sctp_tcb *stcb, uint32_t number_entries,
+    uint16_t *list);
+
+
+int sctp_is_there_unsent_data(struct sctp_tcb *stcb, int so_locked);
+
+#endif
+#endif