contrib/tcpdump/print-sunrpc.c

   1 /*
   2  * Copyright (c) 1992, 1993, 1994, 1995, 1996
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that: (1) source code distributions
   7  * retain the above copyright notice and this paragraph in its entirety, (2)
   8  * distributions including binary code include the above copyright notice and
   9  * this paragraph in its entirety in the documentation or other materials
  10  * provided with the distribution, and (3) all advertising materials mentioning
  11  * features or use of this software display the following acknowledgement:
  12  * ``This product includes software developed by the University of California,
  13  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  14  * the University nor the names of its contributors may be used to endorse
  15  * or promote products derived from this software without specific prior
  16  * written permission.
  17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  20  */
  21
  22 #ifndef lint
  23 static const char rcsid[] _U_ =
  24     "@(#) $Header: /tcpdump/master/tcpdump/print-sunrpc.c,v 1.47 2005-04-27 21:43:48 guy Exp $ (LBL)";
  25 #endif
  26
  27 #ifdef HAVE_CONFIG_H
  28 #include "config.h"
  29 #endif
  30
  31 /*
  32  * At least on HP-UX:
  33  *
  34  *      1) getrpcbynumber() is declared in <netdb.h>, not any of the RPC
  35  *         header files
  36  *
  37  * and
  38  *
  39  *      2) if _XOPEN_SOURCE_EXTENDED is defined, <netdb.h> doesn't declare
  40  *         it
  41  *
  42  * so we undefine it.
  43  */
  44 #undef _XOPEN_SOURCE_EXTENDED
  45
  46 #include <tcpdump-stdinc.h>
  47
  48 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
  49 #include <rpc/rpc.h>
  50 #ifdef HAVE_RPC_RPCENT_H
  51 #include <rpc/rpcent.h>
  52 #endif /* HAVE_RPC_RPCENT_H */
  53 #endif /* defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) */
  54
  55 #include <stdio.h>
  56 #include <string.h>
  57
  58 #include "interface.h"
  59 #include "addrtoname.h"
  60 #include "extract.h"
  61
  62 #include "ip.h"
  63 #ifdef INET6
  64 #include "ip6.h"
  65 #endif
  66
  67 #include "rpc_auth.h"
  68 #include "rpc_msg.h"
  69 #include "pmap_prot.h"
  70
  71 static struct tok proc2str[] = {
  72         { SUNRPC_PMAPPROC_NULL,         "null" },
  73         { SUNRPC_PMAPPROC_SET,          "set" },
  74         { SUNRPC_PMAPPROC_UNSET,        "unset" },
  75         { SUNRPC_PMAPPROC_GETPORT,      "getport" },
  76         { SUNRPC_PMAPPROC_DUMP,         "dump" },
  77         { SUNRPC_PMAPPROC_CALLIT,       "call" },
  78         { 0,                            NULL }
  79 };
  80
  81 /* Forwards */
  82 static char *progstr(u_int32_t);
  83
  84 void
  85 sunrpcrequest_print(register const u_char *bp, register u_int length,
  86                     register const u_char *bp2)
  87 {
  88         register const struct sunrpc_msg *rp;
  89         register const struct ip *ip;
  90 #ifdef INET6
  91         register const struct ip6_hdr *ip6;
  92 #endif
  93         u_int32_t x;
  94         char srcid[20], dstid[20];      /*fits 32bit*/
  95
  96         rp = (struct sunrpc_msg *)bp;
  97
  98         if (!nflag) {
  99                 snprintf(srcid, sizeof(srcid), "0x%x",
 100                     EXTRACT_32BITS(&rp->rm_xid));
 101                 strlcpy(dstid, "sunrpc", sizeof(dstid));
 102         } else {
 103                 snprintf(srcid, sizeof(srcid), "0x%x",
 104                     EXTRACT_32BITS(&rp->rm_xid));
 105                 snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT);
 106         }
 107
 108         switch (IP_V((struct ip *)bp2)) {
 109         case 4:
 110                 ip = (struct ip *)bp2;
 111                 printf("%s.%s > %s.%s: %d",
 112                     ipaddr_string(&ip->ip_src), srcid,
 113                     ipaddr_string(&ip->ip_dst), dstid, length);
 114                 break;
 115 #ifdef INET6
 116         case 6:
 117                 ip6 = (struct ip6_hdr *)bp2;
 118                 printf("%s.%s > %s.%s: %d",
 119                     ip6addr_string(&ip6->ip6_src), srcid,
 120                     ip6addr_string(&ip6->ip6_dst), dstid, length);
 121                 break;
 122 #endif
 123         default:
 124                 printf("%s.%s > %s.%s: %d", "?", srcid, "?", dstid, length);
 125                 break;
 126         }
 127
 128         printf(" %s", tok2str(proc2str, " proc #%u",
 129             EXTRACT_32BITS(&rp->rm_call.cb_proc)));
 130         x = EXTRACT_32BITS(&rp->rm_call.cb_rpcvers);
 131         if (x != 2)
 132                 printf(" [rpcver %u]", x);
 133
 134         switch (EXTRACT_32BITS(&rp->rm_call.cb_proc)) {
 135
 136         case SUNRPC_PMAPPROC_SET:
 137         case SUNRPC_PMAPPROC_UNSET:
 138         case SUNRPC_PMAPPROC_GETPORT:
 139         case SUNRPC_PMAPPROC_CALLIT:
 140                 x = EXTRACT_32BITS(&rp->rm_call.cb_prog);
 141                 if (!nflag)
 142                         printf(" %s", progstr(x));
 143                 else
 144                         printf(" %u", x);
 145                 printf(".%u", EXTRACT_32BITS(&rp->rm_call.cb_vers));
 146                 break;
 147         }
 148 }
 149
 150 static char *
 151 progstr(prog)
 152         u_int32_t prog;
 153 {
 154 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
 155         register struct rpcent *rp;
 156 #endif
 157         static char buf[32];
 158         static u_int32_t lastprog = 0;
 159
 160         if (lastprog != 0 && prog == lastprog)
 161                 return (buf);
 162 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
 163         rp = getrpcbynumber(prog);
 164         if (rp == NULL)
 165 #endif
 166                 (void) snprintf(buf, sizeof(buf), "#%u", prog);
 167 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
 168         else
 169                 strlcpy(buf, rp->r_name, sizeof(buf));
 170 #endif
 171         return (buf);
 172 }