network_cmds-85.tar.gz

[apple/network_cmds.git] / tcpdump.tproj / print-gre.c

diff --git a/tcpdump.tproj/print-gre.c b/tcpdump.tproj/print-gre.c
deleted file mode 100644 (file)
index 94e42db..0000000
--- a/tcpdump.tproj/print-gre.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
- * Reserved.  This file contains Original Code and/or Modifications of
- * Original Code as defined in and that are subject to the Apple Public
- * Source License Version 1.0 (the 'License').  You may not use this file
- * except in compliance with the License.  Please obtain a copy of the
- * License at http://www.apple.com/publicsource and read it before using
- * this file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License."
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1996
- *      The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Lawrence Berkeley Laboratory,
- * Berkeley, CA.  The name of the University may not 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 MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Initial contribution from John Hawkinson <jhawk@bbnplanet.com>
- *
- * This module implements support for decoding GRE (Generic Routing
- * Encapsulation) tunnels; they're documented in RFC1701 and RFC1702.
- * This code only supports the IP encapsulation thereof.
- */
-
-#ifndef lint
-static const char rcsid[] =
-    "@(#) $Header: /cvs/Darwin/Commands/NeXT/network_cmds/tcpdump.tproj/print-gre.c,v 1.1.1.1 1999/05/02 03:58:33 wsanchez Exp $";
-#endif
-
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/uio.h>
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-
-#include <netdb.h>
-#include <stdio.h>
-
-#include "interface.h"
-#include "addrtoname.h"
-#include "extract.h"           /* must come after interface.h */
-
-#define GRE_SIZE (20)
-
-struct gre {
-       u_short flags;
-       u_short proto;
-       union {
-               struct gre_ckof {
-                       u_short cksum;
-                       u_short offset;
-               }        gre_ckof;
-               u_int32_t key;
-               u_int32_t seq;
-       }     gre_void1;
-       union {
-               u_int32_t key;
-               u_int32_t seq;
-               u_int32_t routing;
-       }     gre_void2;
-       union {
-               u_int32_t seq;
-               u_int32_t routing;
-       }     gre_void3;
-       union {
-               u_int32_t routing;
-       }     gre_void4;
-};
-
-#define GRE_CP         0x8000  /* Checksum Present */
-#define GRE_RP         0x4000  /* Routing Present */
-#define GRE_KP         0x2000  /* Key Present */
-#define GRE_SP         0x1000  /* Sequence Present */
-
-
-#define GREPROTO_IP    0x0800
-
-
-/*
- * Deencapsulate and print a GRE-tunneled IP datagram
- */
-void
-gre_print(const u_char *bp, u_int length)
-{
-       const u_char *cp = bp + 4;
-       const struct gre *gre;
-       u_short flags, proto;
-
-       gre = (const struct gre *)bp;
-
-       if (length < GRE_SIZE) {
-               goto trunc;
-       }
-       flags = EXTRACT_16BITS(&gre->flags);
-       proto = EXTRACT_16BITS(&gre->proto);
-
-       if (vflag) {
-               /* Decode the flags */
-               putchar('[');
-               if (flags & GRE_CP)
-                       putchar('C');
-               if (flags & GRE_RP)
-                       putchar('R');
-               if (flags & GRE_KP)
-                       putchar('K');
-               if (flags & GRE_SP)
-                       putchar('S');
-               fputs("] ", stdout);
-       }
-       /* Checksum & Offset are present */
-       if ((flags & GRE_CP) | (flags & GRE_RP))
-               cp += 4;
-
-       /* We don't support routing fields (variable length) now. Punt. */
-       if (flags & GRE_RP)
-               return;
-
-       if (flags & GRE_KP)
-               cp += 4;
-       if (flags & GRE_SP)
-               cp += 4;
-
-       switch (proto) {
-
-       case GREPROTO_IP:
-               ip_print(cp, length - ((cp - bp) / sizeof(u_char)));
-               break;
-
-       default:
-               printf("gre-proto-0x%04X", proto);
-               break;
-       }
-       return;
-
-trunc:
-       fputs("[|gre]", stdout);
-
-}