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authorguy <guy>2000-09-23 08:26:30 +0000
committerguy <guy>2000-09-23 08:26:30 +0000
commit7b50febe28e54e076a9917164eeddec4bc7a170e (patch)
tree7a4ac443a00f2a7982234c9881c3706bb8e6e955 /tcp.h
parente89409254248af64db721ede4babbe9fd1753f6c (diff)
downloadtcpdump-7b50febe28e54e076a9917164eeddec4bc7a170e.tar.gz
Add "tcp.h" and "udp.h" headers, to declare the TCP and UDP stuff needed
by dissectors, and have dissectors include them rather than <netinet/udp.h>, <netinet/udp_var.h>, or <netinet/tcp.h>, if they actually need that stuff. Remove all unnecessary includes of <netinet/udp*.h> or <netinet/tcp*.h> files.
Diffstat (limited to 'tcp.h')
-rw-r--r--tcp.h81
1 files changed, 81 insertions, 0 deletions
diff --git a/tcp.h b/tcp.h
new file mode 100644
index 00000000..38b959c0
--- /dev/null
+++ b/tcp.h
@@ -0,0 +1,81 @@
+/* @(#) $Header: /tcpdump/master/tcpdump/tcp.h,v 1.1 2000-09-23 08:26:39 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_int tcp_seq;
+/*
+ * TCP header.
+ * Per RFC 793, September, 1981.
+ */
+struct tcphdr {
+ u_short th_sport; /* source port */
+ u_short th_dport; /* destination port */
+ tcp_seq th_seq; /* sequence number */
+ tcp_seq th_ack; /* acknowledgement number */
+#if BYTE_ORDER == LITTLE_ENDIAN
+ u_char th_x2:4, /* (unused) */
+ th_off:4; /* data offset */
+#endif
+#if BYTE_ORDER == BIG_ENDIAN
+ u_char th_off:4, /* data offset */
+ th_x2:4; /* (unused) */
+#endif
+ u_char th_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
+ u_short th_win; /* window */
+ u_short th_sum; /* checksum */
+ u_short th_urp; /* urgent pointer */
+};
+
+#define TCPOPT_EOL 0
+#define TCPOPT_NOP 1
+#define TCPOPT_MAXSEG 2
+#define TCPOLEN_MAXSEG 4
+#define TCPOPT_WINDOW 3
+#define TCPOLEN_WINDOW 3
+#define TCPOPT_SACK_PERMITTED 4 /* Experimental */
+#define TCPOLEN_SACK_PERMITTED 2
+#define TCPOPT_SACK 5 /* Experimental */
+#define TCPOPT_TIMESTAMP 8
+#define TCPOLEN_TIMESTAMP 10
+#define TCPOLEN_TSTAMP_APPA (TCPOLEN_TIMESTAMP+2) /* appendix A */
+
+#define TCPOPT_TSTAMP_HDR \
+ (TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_TIMESTAMP<<8|TCPOLEN_TIMESTAMP)