Fix spaces

[tcpdump] / print-ah.c

diff --git a/print-ah.c b/print-ah.c
index b4fae2eb338f152a47cf811d10a08c5646a3c98c..735226f696ecdf045067460c2cb2c7ffbf0d4c85 100644 (file)
--- a/print-ah.c
+++ b/print-ah.c
@@ -21,80 +21,42 @@
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
-#ifndef lint
-static char rcsid[] =
-    "@(#) Header: print-ah.c,v 1.37 94/06/10 17:01:42 mccanne Exp (LBL)";
-#endif
-
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/ip_var.h>
-#include <netinet/udp.h>
-#include <netinet/udp_var.h>
+/* \summary: IPSEC Authentication Header printer */
 
-#undef NOERROR                                 /* Solaris sucks */
-#include <arpa/nameser.h>
-#include <arpa/tftp.h>
-
-#ifdef SOLARIS
-#include <tiuser.h>
+#ifdef HAVE_CONFIG_H
+#include <config.h>
 #endif
-#include <rpc/rpc.h>
-
-#include <errno.h>
-#include <stdio.h>
 
-#include "interface.h"
-#include "addrtoname.h"
+#include "netdissect-stdinc.h"
 
-extern int packettype;
+#include "netdissect.h"
+#include "extract.h"
 
+#include "ah.h"
 
-void
-ah_print(register const u_char *bp, int length, register const u_char *bp2)
+int
+ah_print(netdissect_options *ndo, const u_char *bp)
 {
-  register const struct ip *ip;
-  register const u_char *cp, *nh;
-  u_short nextheader;
-  u_short ahlen, authlen;
-  u_long  spi, seqno;
+       const struct ah *ah;
+       u_int sumlen;
 
-  ip = (struct ip *)bp2;
+       ndo->ndo_protocol = "ah";
+       ah = (const struct ah *)bp;
 
-  (void)printf("AH %s > %s\n\t\t",
-              ipaddr_string(&ip->ip_src),
-              ipaddr_string(&ip->ip_dst));
+       ND_TCHECK_SIZE(ah);
 
-  if (length < 8) {
-    (void)printf(" [|ah] truncated-ah %d", length);
-    return;
-  }
+       sumlen = EXTRACT_U_1(ah->ah_len) << 2;
 
-  nextheader = bp[0];
-  ahlen      = bp[1];
-  spi        = ntohl(*((u_long *)(bp+4)));
-  seqno      = ntohl(*((u_long *)(bp+8)));
-  authlen    = ahlen - 12;
+       ND_PRINT("AH(spi=0x%08x", EXTRACT_BE_U_4(ah->ah_spi));
+       if (ndo->ndo_vflag)
+               ND_PRINT(",sumlen=%u", sumlen);
+       ND_TCHECK_4(ah + 1);
+       ND_PRINT(",seq=0x%x", EXTRACT_BE_U_4(ah + 1));
+       ND_TCHECK_LEN(bp, sizeof(struct ah) + sumlen);
+       ND_PRINT("): ");
 
-  nh         = bp+ahlen;
-
-  if(authlen > length || authlen == 0)
-    {
-      authlen = length;
-    }
-
-  (void)printf("spi:%08x seqno:%d authlen: %d authdata: ", spi,
-              seqno, authlen);
-  (void)default_print_unaligned(bp+12, authlen);
-
-  /* PRINT rest of packet, requires some reorg of print-ip.c */
-#if XXX  
-  (void)ip_print(nextheader, ip, nh, length-authlen);
-#endif
+       return sizeof(struct ah) + sumlen;
+ trunc:
+       nd_print_trunc(ndo);
+       return -1;
 }