Virgin import of tcpdump.org tcpdump v3.5

1 files changed, 103 insertions, 0 deletions

diff --git a/contrib/tcpdump/print-ah.c b/contrib/tcpdump/print-ah.c
new file mode 100644
index 0000000..9a36ff4
--- /dev/null
+++ b/contrib/tcpdump/print-ah.c
@@ -0,0 +1,103 @@
+/*	$NetBSD: print-ah.c,v 1.4 1996/05/20 00:41:16 fvdl Exp $	*/
+
+/*
+ * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994
+ *	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: (1) source code distributions
+ * retain the above copyright notice and this paragraph in its entirety, (2)
+ * distributions including binary code include the above copyright notice and
+ * this paragraph in its entirety in the documentation or other materials
+ * provided with the distribution, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by the University of California,
+ * Lawrence Berkeley Laboratory and its contributors.'' 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef lint
+static const char rcsid[] =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-ah.c,v 1.5 1999/12/15 08:10:17 fenner Exp $ (LBL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <net/route.h>
+#include <net/if.h>
+
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_icmp.h>
+#include <netinet/ip_var.h>
+#include <netinet/udp.h>
+#include <netinet/udp_var.h>
+#include <netinet/tcp.h>
+
+#include <stdio.h>
+
+/* there's no standard definition so we are on our own */
+struct ah {
+	u_int8_t	ah_nxt;		/* Next Header */
+	u_int8_t	ah_len;		/* Length of data, in 32bit */
+	u_int16_t	ah_reserve;	/* Reserved for future use */
+	u_int32_t	ah_spi;		/* Security parameter index */
+	/* variable size, 32bit bound*/	/* Authentication data */
+};
+
+struct newah {
+	u_int8_t	ah_nxt;		/* Next Header */
+	u_int8_t	ah_len;		/* Length of data + 1, in 32bit */
+	u_int16_t	ah_reserve;	/* Reserved for future use */
+	u_int32_t	ah_spi;		/* Security parameter index */
+	u_int32_t	ah_seq;		/* Sequence number field */
+	/* variable size, 32bit bound*/	/* Authentication data */
+};
+
+#include "interface.h"
+#include "addrtoname.h"
+
+int
+ah_print(register const u_char *bp, register const u_char *bp2)
+{
+	register const struct ah *ah;
+	register const u_char *ep;
+	int sumlen;
+	u_int32_t spi;
+
+	ah = (struct ah *)bp;
+	ep = snapend;		/* 'ep' points to the end of avaible data. */
+
+	if ((u_char *)(ah + 1) >= ep - sizeof(struct ah))
+		goto trunc;
+
+	sumlen = ah->ah_len << 2;
+	spi = (u_int32_t)ntohl(ah->ah_spi);
+
+	printf("AH(spi=%u", spi);
+	if (vflag)
+		printf(",sumlen=%d", sumlen);
+	printf(",seq=0x%x", (u_int32_t)ntohl(*(u_int32_t *)(ah + 1)));
+	if (bp + sizeof(struct ah) + sumlen > ep)
+		fputs("[truncated]", stdout);
+	fputs("): ", stdout);
+	
+	return sizeof(struct ah) + sumlen;
+ trunc:
+	fputs("[|AH]", stdout);
+	return 65535;
+}