dist/tcpdump/print-sunrpc.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (c) 1992, 1993, 1994, 1995, 1996
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that: (1) source code distributions
   9  * retain the above copyright notice and this paragraph in its entirety, (2)
  10  * distributions including binary code include the above copyright notice and
  11  * this paragraph in its entirety in the documentation or other materials
  12  * provided with the distribution, and (3) all advertising materials mentioning
  13  * features or use of this software display the following acknowledgement:
  14  * ``This product includes software developed by the University of California,
  15  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  16  * the University nor the names of its contributors may be used to endorse
  17  * or promote products derived from this software without specific prior
  18  * written permission.
  19  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  20  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  21  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  22  */
  23
  24 #include <sys/cdefs.h>
  25 #ifndef lint
  26 #if 0
  27 static const char rcsid[] _U_ =
  28     "@(#) Header: /tcpdump/master/tcpdump/print-sunrpc.c,v 1.46.2.1 2005/04/27 21:44:06 guy Exp (LBL)";
  29 #else
  30 __RCSID("$NetBSD: tcpdump2rcsid.ex,v 1.1 2001/06/25 20:09:58 itojun Exp $");
  31 #endif
  32 #endif
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include "config.h"
  36 #endif
  37
  38 #include <tcpdump-stdinc.h>
  39
  40 #ifdef HAVE_GETRPCBYNUMBER
  41 #include <rpc/rpc.h>
  42 #ifdef HAVE_RPC_RPCENT_H
  43 #include <rpc/rpcent.h>
  44 #endif /* HAVE_RPC_RPCENT_H */
  45 #endif /* HAVE_GETRPCBYNUMBER */
  46
  47 #include <stdio.h>
  48 #include <string.h>
  49
  50 #include "interface.h"
  51 #include "addrtoname.h"
  52 #include "extract.h"
  53
  54 #include "ip.h"
  55 #ifdef INET6
  56 #include "ip6.h"
  57 #endif
  58
  59 #include "rpc_auth.h"
  60 #include "rpc_msg.h"
  61 #include "pmap_prot.h"
  62
  63 static struct tok proc2str[] = {
  64         { SUNRPC_PMAPPROC_NULL,         "null" },
  65         { SUNRPC_PMAPPROC_SET,          "set" },
  66         { SUNRPC_PMAPPROC_UNSET,        "unset" },
  67         { SUNRPC_PMAPPROC_GETPORT,      "getport" },
  68         { SUNRPC_PMAPPROC_DUMP,         "dump" },
  69         { SUNRPC_PMAPPROC_CALLIT,       "call" },
  70         { 0,                            NULL }
  71 };
  72
  73 /* Forwards */
  74 static char *progstr(u_int32_t);
  75
  76 void
  77 sunrpcrequest_print(register const u_char *bp, register u_int length,
  78                     register const u_char *bp2)
  79 {
  80         register const struct sunrpc_msg *rp;
  81         register const struct ip *ip;
  82 #ifdef INET6
  83         register const struct ip6_hdr *ip6;
  84 #endif
  85         u_int32_t x;
  86         char srcid[20], dstid[20];      /*fits 32bit*/
  87
  88         rp = (struct sunrpc_msg *)bp;
  89
  90         if (!nflag) {
  91                 snprintf(srcid, sizeof(srcid), "0x%x",
  92                     EXTRACT_32BITS(&rp->rm_xid));
  93                 strlcpy(dstid, "sunrpc", sizeof(dstid));
  94         } else {
  95                 snprintf(srcid, sizeof(srcid), "0x%x",
  96                     EXTRACT_32BITS(&rp->rm_xid));
  97                 snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT);
  98         }
  99
 100         switch (IP_V((struct ip *)bp2)) {
 101         case 4:
 102                 ip = (struct ip *)bp2;
 103                 printf("%s.%s > %s.%s: %d",
 104                     ipaddr_string(&ip->ip_src), srcid,
 105                     ipaddr_string(&ip->ip_dst), dstid, length);
 106                 break;
 107 #ifdef INET6
 108         case 6:
 109                 ip6 = (struct ip6_hdr *)bp2;
 110                 printf("%s.%s > %s.%s: %d",
 111                     ip6addr_string(&ip6->ip6_src), srcid,
 112                     ip6addr_string(&ip6->ip6_dst), dstid, length);
 113                 break;
 114 #endif
 115         default:
 116                 printf("%s.%s > %s.%s: %d", "?", srcid, "?", dstid, length);
 117                 break;
 118         }
 119
 120         printf(" %s", tok2str(proc2str, " proc #%u",
 121             EXTRACT_32BITS(&rp->rm_call.cb_proc)));
 122         x = EXTRACT_32BITS(&rp->rm_call.cb_rpcvers);
 123         if (x != 2)
 124                 printf(" [rpcver %u]", x);
 125
 126         switch (EXTRACT_32BITS(&rp->rm_call.cb_proc)) {
 127
 128         case SUNRPC_PMAPPROC_SET:
 129         case SUNRPC_PMAPPROC_UNSET:
 130         case SUNRPC_PMAPPROC_GETPORT:
 131         case SUNRPC_PMAPPROC_CALLIT:
 132                 x = EXTRACT_32BITS(&rp->rm_call.cb_prog);
 133                 if (!nflag)
 134                         printf(" %s", progstr(x));
 135                 else
 136                         printf(" %u", x);
 137                 printf(".%u", EXTRACT_32BITS(&rp->rm_call.cb_vers));
 138                 break;
 139         }
 140 }
 141
 142 static char *
 143 progstr(prog)
 144         u_int32_t prog;
 145 {
 146 #ifdef HAVE_GETRPCBYNUMBER
 147         register struct rpcent *rp;
 148 #endif
 149         static char buf[32];
 150         static u_int32_t lastprog = 0;
 151
 152         if (lastprog != 0 && prog == lastprog)
 153                 return (buf);
 154 #ifdef HAVE_GETRPCBYNUMBER
 155         rp = getrpcbynumber(prog);
 156         if (rp == NULL)
 157 #endif
 158                 (void) snprintf(buf, sizeof(buf), "#%u", prog);
 159 #ifdef HAVE_GETRPCBYNUMBER
 160         else
 161                 strlcpy(buf, rp->r_name, sizeof(buf));
 162 #endif
 163         return (buf);
 164 }