/*
* Copyright (C) 2001 Julian Cowley
* All rights reserved.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 3. Neither the name of the project 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 PROJECT 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
/* Cisco Hot Standby Router Protocol (HSRP). */
-#ifndef lint
-static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/tcpdump/print-hsrp.c,v 1.2 2001-10-08 16:12:37 fenner Exp $";
-#endif
-
+#define NETDISSECT_REWORKED
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include <sys/types.h>
-
-#include <stdio.h>
-#include <netinet/in.h>
+#include <tcpdump-stdinc.h>
#include "interface.h"
#include "addrtoname.h"
};
/* HSRP states and associated names. */
-static struct tok states[] = {
+static const struct tok states[] = {
{ 0, "initial" },
{ 1, "learn" },
{ 2, "listen" },
/* HSRP protocol header. */
struct hsrp {
- u_char hsrp_version;
- u_char hsrp_op_code;
- u_char hsrp_state;
- u_char hsrp_hellotime;
- u_char hsrp_holdtime;
- u_char hsrp_priority;
- u_char hsrp_group;
- u_char hsrp_reserved;
- u_char hsrp_authdata[HSRP_AUTH_SIZE];
+ uint8_t hsrp_version;
+ uint8_t hsrp_op_code;
+ uint8_t hsrp_state;
+ uint8_t hsrp_hellotime;
+ uint8_t hsrp_holdtime;
+ uint8_t hsrp_priority;
+ uint8_t hsrp_group;
+ uint8_t hsrp_reserved;
+ uint8_t hsrp_authdata[HSRP_AUTH_SIZE];
struct in_addr hsrp_virtaddr;
};
void
-hsrp_print(register const u_char *bp, register u_int len)
+hsrp_print(netdissect_options *ndo, register const uint8_t *bp, register u_int len)
{
struct hsrp *hp = (struct hsrp *) bp;
- TCHECK(hp->hsrp_version);
- printf("HSRPv%d", hp->hsrp_version);
+ ND_TCHECK(hp->hsrp_version);
+ ND_PRINT((ndo, "HSRPv%d", hp->hsrp_version));
if (hp->hsrp_version != 0)
return;
- TCHECK(hp->hsrp_op_code);
- printf("-");
- printf("%s ", tok2strary(op_code_str, "unknown (%d)", hp->hsrp_op_code));
- printf("%d: ", len);
- TCHECK(hp->hsrp_state);
- printf("state=%s ", tok2str(states, "Unknown (%d)", hp->hsrp_state));
- TCHECK(hp->hsrp_group);
- printf("group=%d ", hp->hsrp_group);
- TCHECK(hp->hsrp_reserved);
+ ND_TCHECK(hp->hsrp_op_code);
+ ND_PRINT((ndo, "-"));
+ ND_PRINT((ndo, "%s ", tok2strary(op_code_str, "unknown (%d)", hp->hsrp_op_code)));
+ ND_PRINT((ndo, "%d: ", len));
+ ND_TCHECK(hp->hsrp_state);
+ ND_PRINT((ndo, "state=%s ", tok2str(states, "Unknown (%d)", hp->hsrp_state)));
+ ND_TCHECK(hp->hsrp_group);
+ ND_PRINT((ndo, "group=%d ", hp->hsrp_group));
+ ND_TCHECK(hp->hsrp_reserved);
if (hp->hsrp_reserved != 0) {
- printf("[reserved=%d!] ", hp->hsrp_reserved);
+ ND_PRINT((ndo, "[reserved=%d!] ", hp->hsrp_reserved));
}
- TCHECK2(hp->hsrp_virtaddr, sizeof(hp->hsrp_virtaddr));
- printf("addr=%s", ipaddr_string(&hp->hsrp_virtaddr));
- if (vflag) {
- printf(" hellotime=");
- relts_print(hp->hsrp_hellotime);
- printf(" holdtime=");
- relts_print(hp->hsrp_holdtime);
- printf(" priority=%d", hp->hsrp_priority);
- printf(" auth=\"");
- fn_printn(hp->hsrp_authdata, sizeof(hp->hsrp_authdata), NULL);
- printf("\"");
+ ND_TCHECK(hp->hsrp_virtaddr);
+ ND_PRINT((ndo, "addr=%s", ipaddr_string(ndo, &hp->hsrp_virtaddr)));
+ if (ndo->ndo_vflag) {
+ ND_PRINT((ndo, " hellotime="));
+ relts_print(ndo, hp->hsrp_hellotime);
+ ND_PRINT((ndo, " holdtime="));
+ relts_print(ndo, hp->hsrp_holdtime);
+ ND_PRINT((ndo, " priority=%d", hp->hsrp_priority));
+ ND_PRINT((ndo, " auth=\""));
+ if (fn_printn(ndo, hp->hsrp_authdata, sizeof(hp->hsrp_authdata),
+ ndo->ndo_snapend)) {
+ ND_PRINT((ndo, "\""));
+ goto trunc;
+ }
+ ND_PRINT((ndo, "\""));
}
return;
trunc:
- printf("[|hsrp]");
+ ND_PRINT((ndo, "[|hsrp]"));
}