diff --git a/tools/dump/tcpdump/tcp.h b/tools/dump/tcpdump/tcp.h
new file mode 100644
index 0000000..1961157
--- /dev/null
+++ b/tools/dump/tcpdump/tcp.h
@@ -0,0 +1,116 @@
+/* @(#) $Header: /tcpdump/master/tcpdump/tcp.h,v 1.14 2007-12-09 00:30:47 guy Exp $ (LBL) */
+/*
+ * Copyright (c) 1982, 1986, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
+ *
+ *	@(#)tcp.h	8.1 (Berkeley) 6/10/93
+ */
+
+typedef	u_int32_t	tcp_seq;
+/*
+ * TCP header.
+ * Per RFC 793, September, 1981.
+ */
+struct tcphdr {
+	u_int16_t	th_sport;		/* source port */
+	u_int16_t	th_dport;		/* destination port */
+	tcp_seq		th_seq;			/* sequence number */
+	tcp_seq		th_ack;			/* acknowledgement number */
+	u_int8_t	th_offx2;		/* data offset, rsvd */
+	u_int8_t	th_flags;
+	u_int16_t	th_win;			/* window */
+	u_int16_t	th_sum;			/* checksum */
+	u_int16_t	th_urp;			/* urgent pointer */
+};
+
+#define TH_OFF(th)	(((th)->th_offx2 & 0xf0) >> 4)
+
+/* TCP flags */
+#define	TH_FIN     0x01
+#define	TH_SYN	   0x02
+#define	TH_RST	   0x04
+#define	TH_PUSH	   0x08
+#define	TH_ACK	   0x10
+#define	TH_URG	   0x20
+#define TH_ECNECHO 0x40	/* ECN Echo */
+#define TH_CWR	   0x80	/* ECN Cwnd Reduced */
+
+
+#define	TCPOPT_EOL		0
+#define	TCPOPT_NOP		1
+#define	TCPOPT_MAXSEG		2
+#define    TCPOLEN_MAXSEG		4
+#define	TCPOPT_WSCALE		3	/* window scale factor (rfc1323) */
+#define	TCPOPT_SACKOK		4	/* selective ack ok (rfc2018) */
+#define	TCPOPT_SACK		5	/* selective ack (rfc2018) */
+#define	TCPOPT_ECHO		6	/* echo (rfc1072) */
+#define	TCPOPT_ECHOREPLY	7	/* echo (rfc1072) */
+#define TCPOPT_TIMESTAMP	8	/* timestamp (rfc1323) */
+#define    TCPOLEN_TIMESTAMP		10
+#define    TCPOLEN_TSTAMP_APPA		(TCPOLEN_TIMESTAMP+2) /* appendix A */
+#define TCPOPT_CC		11	/* T/TCP CC options (rfc1644) */
+#define TCPOPT_CCNEW		12	/* T/TCP CC options (rfc1644) */
+#define TCPOPT_CCECHO		13	/* T/TCP CC options (rfc1644) */
+#define TCPOPT_SIGNATURE	19	/* Keyed MD5 (rfc2385) */
+#define    TCPOLEN_SIGNATURE		18
+#define TCP_SIGLEN 16			/* length of an option 19 digest */
+#define TCPOPT_AUTH             20      /* Enhanced AUTH option */
+#define	TCPOPT_UTO		28	/* tcp user timeout (rfc5482) */
+#define	   TCPOLEN_UTO			4
+#define	TCPOPT_MPTCP		30	/* MPTCP options */
+#define TCPOPT_EXPERIMENT2	254	/* experimental headers (rfc4727) */
+
+#define TCPOPT_TSTAMP_HDR	\
+    (TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_TIMESTAMP<<8|TCPOLEN_TIMESTAMP)
+
+#ifndef TELNET_PORT
+#define TELNET_PORT             23
+#endif
+#ifndef BGP_PORT
+#define BGP_PORT                179
+#endif
+#define NETBIOS_SSN_PORT        139
+#ifndef OPENFLOW_PORT
+#define OPENFLOW_PORT           6633
+#endif
+#ifndef PPTP_PORT
+#define PPTP_PORT	        1723
+#endif
+#define BEEP_PORT               10288
+#ifndef NFS_PORT
+#define NFS_PORT	        2049
+#endif
+#define MSDP_PORT	        639
+#define RPKI_RTR_PORT	        323
+#define LDP_PORT                646
+#ifndef SMB_PORT
+#define SMB_PORT                445
+#endif