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/*
* Copyright (c) 1992, 1993, 1994, 1995, 1996
* 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[] _U_ =
    "@(#) $Header: /tcpdump/master/tcpdump/print-sunrpc.c,v 1.47 2005-04-27 21:43:48 guy Exp $ (LBL)";
#endif

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

/*
* At least on HP-UX:
*
* 1) getrpcbynumber() is declared in <netdb.h>, not any of the RPC
* header files
*
* and
*
* 2) if _XOPEN_SOURCE_EXTENDED is defined, <netdb.h> doesn't declare
* it
*
* so we undefine it.
*/
#undef _XOPEN_SOURCE_EXTENDED

#include <tcpdump-stdinc.h>

#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
#include <rpc/rpc.h>
#ifdef HAVE_RPC_RPCENT_H
#include <rpc/rpcent.h>
#endif /* HAVE_RPC_RPCENT_H */
#endif /* defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) */

#include <stdio.h>
#include <string.h>

#include "interface.h"
#include "addrtoname.h"
#include "extract.h"

#include "ip.h"
#ifdef INET6
#include "ip6.h"
#endif

#include "rpc_auth.h"
#include "rpc_msg.h"
#include "pmap_prot.h"

static struct tok proc2str[] = {
{ SUNRPC_PMAPPROC_NULL, "null" },
{ SUNRPC_PMAPPROC_SET, "set" },
{ SUNRPC_PMAPPROC_UNSET, "unset" },
{ SUNRPC_PMAPPROC_GETPORT, "getport" },
{ SUNRPC_PMAPPROC_DUMP, "dump" },
{ SUNRPC_PMAPPROC_CALLIT, "call" },
{ 0, NULL }
};

/* Forwards */
static char *progstr(u_int32_t);

void
sunrpcrequest_print(register const u_char *bp, register u_int length,
register const u_char *bp2)
{
register const struct sunrpc_msg *rp;
register const struct ip *ip;
#ifdef INET6
register const struct ip6_hdr *ip6;
#endif
u_int32_t x;
char srcid[20], dstid[20]; /*fits 32bit*/

rp = (struct sunrpc_msg *)bp;

if (!nflag) {
snprintf(srcid, sizeof(srcid), "0x%x",
EXTRACT_32BITS(&rp->rm_xid));
strlcpy(dstid, "sunrpc", sizeof(dstid));
} else {
snprintf(srcid, sizeof(srcid), "0x%x",
EXTRACT_32BITS(&rp->rm_xid));
snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT);
}

switch (IP_V((struct ip *)bp2)) {
case 4:
ip = (struct ip *)bp2;
printf("%s.%s > %s.%s: %d",
ipaddr_string(&ip->ip_src), srcid,
ipaddr_string(&ip->ip_dst), dstid, length);
break;
#ifdef INET6
case 6:
ip6 = (struct ip6_hdr *)bp2;
printf("%s.%s > %s.%s: %d",
ip6addr_string(&ip6->ip6_src), srcid,
ip6addr_string(&ip6->ip6_dst), dstid, length);
break;
#endif
default:
printf("%s.%s > %s.%s: %d", "?", srcid, "?", dstid, length);
break;
}

printf(" %s", tok2str(proc2str, " proc #%u",
EXTRACT_32BITS(&rp->rm_call.cb_proc)));
x = EXTRACT_32BITS(&rp->rm_call.cb_rpcvers);
if (x != 2)
printf(" [rpcver %u]", x);

switch (EXTRACT_32BITS(&rp->rm_call.cb_proc)) {

case SUNRPC_PMAPPROC_SET:
case SUNRPC_PMAPPROC_UNSET:
case SUNRPC_PMAPPROC_GETPORT:
case SUNRPC_PMAPPROC_CALLIT:
x = EXTRACT_32BITS(&rp->rm_call.cb_prog);
if (!nflag)
printf(" %s", progstr(x));
else
printf(" %u", x);
printf(".%u", EXTRACT_32BITS(&rp->rm_call.cb_vers));
break;
}
}

static char *
progstr(prog)
u_int32_t prog;
{
#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
register struct rpcent *rp;
#endif
static char buf[32];
static u_int32_t lastprog = 0;

if (lastprog != 0 && prog == lastprog)
return (buf);
#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
rp = getrpcbynumber(prog);
if (rp == NULL)
#endif
(void) snprintf(buf, sizeof(buf), "#%u", prog);
#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
else
strlcpy(buf, rp->r_name, sizeof(buf));
#endif
return (buf);
}
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