contrib/tcpdump-3.9/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 1.46.2.1 2005/04/27 21:44:06 guy Exp $ (LBL)";
  25 #endif
  26
  27 #ifdef HAVE_CONFIG_H
  28 #include "config.h"
  29 #endif
  30
  31 #include <tcpdump-stdinc.h>
  32
  33 #ifdef HAVE_GETRPCBYNUMBER
  34 #include <rpc/rpc.h>
  35 #ifdef HAVE_RPC_RPCENT_H
  36 #include <rpc/rpcent.h>
  37 #endif /* HAVE_RPC_RPCENT_H */
  38 #endif /* HAVE_GETRPCBYNUMBER */
  39
  40 #include <stdio.h>
  41 #include <string.h>
  42
  43 #include "interface.h"
  44 #include "addrtoname.h"
  45 #include "extract.h"
  46
  47 #include "ip.h"
  48 #ifdef INET6
  49 #include "ip6.h"
  50 #endif
  51
  52 #include "rpc_auth.h"
  53 #include "rpc_msg.h"
  54 #include "pmap_prot.h"
  55
  56 static struct tok proc2str[] = {
  57         { SUNRPC_PMAPPROC_NULL,         "null" },
  58         { SUNRPC_PMAPPROC_SET,          "set" },
  59         { SUNRPC_PMAPPROC_UNSET,        "unset" },
  60         { SUNRPC_PMAPPROC_GETPORT,      "getport" },
  61         { SUNRPC_PMAPPROC_DUMP,         "dump" },
  62         { SUNRPC_PMAPPROC_CALLIT,       "call" },
  63         { 0,                            NULL }
  64 };
  65
  66 /* Forwards */
  67 static char *progstr(u_int32_t);
  68
  69 void
  70 sunrpcrequest_print(register const u_char *bp, register u_int length,
  71                     register const u_char *bp2)
  72 {
  73         register const struct sunrpc_msg *rp;
  74         register const struct ip *ip;
  75 #ifdef INET6
  76         register const struct ip6_hdr *ip6;
  77 #endif
  78         u_int32_t x;
  79         char srcid[20], dstid[20];      /*fits 32bit*/
  80
  81         rp = (struct sunrpc_msg *)bp;
  82
  83         if (!nflag) {
  84                 snprintf(srcid, sizeof(srcid), "0x%x",
  85                     EXTRACT_32BITS(&rp->rm_xid));
  86                 strlcpy(dstid, "sunrpc", sizeof(dstid));
  87         } else {
  88                 snprintf(srcid, sizeof(srcid), "0x%x",
  89                     EXTRACT_32BITS(&rp->rm_xid));
  90                 snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT);
  91         }
  92
  93         switch (IP_V((struct ip *)bp2)) {
  94         case 4:
  95                 ip = (struct ip *)bp2;
  96                 printf("%s.%s > %s.%s: %d",
  97                     ipaddr_string(&ip->ip_src), srcid,
  98                     ipaddr_string(&ip->ip_dst), dstid, length);
  99                 break;
 100 #ifdef INET6
 101         case 6:
 102                 ip6 = (struct ip6_hdr *)bp2;
 103                 printf("%s.%s > %s.%s: %d",
 104                     ip6addr_string(&ip6->ip6_src), srcid,
 105                     ip6addr_string(&ip6->ip6_dst), dstid, length);
 106                 break;
 107 #endif
 108         default:
 109                 printf("%s.%s > %s.%s: %d", "?", srcid, "?", dstid, length);
 110                 break;
 111         }
 112
 113         printf(" %s", tok2str(proc2str, " proc #%u",
 114             EXTRACT_32BITS(&rp->rm_call.cb_proc)));
 115         x = EXTRACT_32BITS(&rp->rm_call.cb_rpcvers);
 116         if (x != 2)
 117                 printf(" [rpcver %u]", x);
 118
 119         switch (EXTRACT_32BITS(&rp->rm_call.cb_proc)) {
 120
 121         case SUNRPC_PMAPPROC_SET:
 122         case SUNRPC_PMAPPROC_UNSET:
 123         case SUNRPC_PMAPPROC_GETPORT:
 124         case SUNRPC_PMAPPROC_CALLIT:
 125                 x = EXTRACT_32BITS(&rp->rm_call.cb_prog);
 126                 if (!nflag)
 127                         printf(" %s", progstr(x));
 128                 else
 129                         printf(" %u", x);
 130                 printf(".%u", EXTRACT_32BITS(&rp->rm_call.cb_vers));
 131                 break;
 132         }
 133 }
 134
 135 static char *
 136 progstr(prog)
 137         u_int32_t prog;
 138 {
 139 #ifdef HAVE_GETRPCBYNUMBER
 140         register struct rpcent *rp;
 141 #endif
 142         static char buf[32];
 143         static u_int32_t lastprog = 0;
 144
 145         if (lastprog != 0 && prog == lastprog)
 146                 return (buf);
 147 #ifdef HAVE_GETRPCBYNUMBER
 148         rp = getrpcbynumber(prog);
 149         if (rp == NULL)
 150 #endif
 151                 (void) snprintf(buf, sizeof(buf), "#%u", prog);
 152 #ifdef HAVE_GETRPCBYNUMBER
 153         else
 154                 strlcpy(buf, rp->r_name, sizeof(buf));
 155 #endif
 156         return (buf);
 157 }