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authorfenner <fenner@FreeBSD.org>2000-01-30 00:45:58 +0000
committerfenner <fenner@FreeBSD.org>2000-01-30 00:45:58 +0000
commit54c4a9c9f2aca2e032cbf41f5eb012e2e9628dd4 (patch)
treed25e1fd8c818bfce397a4c7e3f2c66229c814b2a /contrib/tcpdump/print-ipcomp.c
parent0c669098d078c88cf703bade2263846b39e01d83 (diff)
downloadFreeBSD-src-54c4a9c9f2aca2e032cbf41f5eb012e2e9628dd4.zip
FreeBSD-src-54c4a9c9f2aca2e032cbf41f5eb012e2e9628dd4.tar.gz
Virgin import of tcpdump.org tcpdump v3.5
Diffstat (limited to 'contrib/tcpdump/print-ipcomp.c')
-rw-r--r--contrib/tcpdump/print-ipcomp.c112
1 files changed, 112 insertions, 0 deletions
diff --git a/contrib/tcpdump/print-ipcomp.c b/contrib/tcpdump/print-ipcomp.c
new file mode 100644
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+++ b/contrib/tcpdump/print-ipcomp.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 1988, 1989, 1990, 1991, 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-ipcomp.c,v 1.2.2.2 2000/01/25 18:31:10 itojun Exp $";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+#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>
+
+#ifdef INET6
+#include <netinet/ip6.h>
+#endif
+
+struct ipcomp {
+ u_int8_t comp_nxt; /* Next Header */
+ u_int8_t comp_flags; /* Length of data, in 32bit */
+ u_int16_t comp_cpi; /* Compression parameter index */
+};
+
+#if defined(HAVE_LIBZ) && defined(HAVE_ZLIB_H)
+#include <zlib.h>
+#endif
+
+#include "interface.h"
+#include "addrtoname.h"
+
+int
+ipcomp_print(register const u_char *bp, register const u_char *bp2, int *nhdr)
+{
+ register const struct ipcomp *ipcomp;
+ register const u_char *ep;
+ u_int16_t cpi;
+#if defined(HAVE_LIBZ) && defined(HAVE_ZLIB_H)
+ int advance;
+#endif
+
+ ipcomp = (struct ipcomp *)bp;
+ cpi = (u_int16_t)ntohs(ipcomp->comp_cpi);
+
+ /* 'ep' points to the end of avaible data. */
+ ep = snapend;
+
+ if ((u_char *)(ipcomp + 1) >= ep - sizeof(struct ipcomp)) {
+ fputs("[|IPCOMP]", stdout);
+ goto fail;
+ }
+ printf("IPComp(cpi=%u)", cpi);
+
+#if defined(HAVE_LIBZ) && defined(HAVE_ZLIB_H)
+ if (1)
+ goto fail;
+
+ /*
+ * We may want to decompress the packet here. Packet buffer
+ * management is a headache (if we decompress, packet will become
+ * larger).
+ */
+ if (nhdr)
+ *nhdr = ipcomp->comp_nxt;
+ advance = sizeof(struct ipcomp);
+
+ printf(": ");
+ return advance;
+
+#endif
+fail:
+ if (nhdr)
+ *nhdr = -1;
+ return 65536;
+}
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