The Tcpdump Group git mirrors - tcpdump/blob - 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[] =
  24     "@(#) $Header: /tcpdump/master/tcpdump/print-sunrpc.c,v 1.27 1999-10-17 21:37:16 mcr Exp $ (LBL)";
  25 #endif
  26
  27 #include <sys/param.h>
  28 #include <sys/time.h>
  29 #include <sys/socket.h>
  30
  31 #if __STDC__
  32 struct mbuf;
  33 struct rtentry;
  34 #endif
  35 #include <net/if.h>
  36
  37 #include <netinet/in.h>
  38 #include <netinet/if_ether.h>
  39 #include <netinet/in_systm.h>
  40 #include <netinet/ip.h>
  41
  42 #include <rpc/rpc.h>
  43 #ifdef HAVE_RPC_RPCENT_H
  44 #include <rpc/rpcent.h>
  45 #endif
  46 #include <rpc/pmap_prot.h>
  47
  48 #include <ctype.h>
  49 #include <netdb.h>
  50 #include <stdio.h>
  51 #include <string.h>
  52
  53 #include "interface.h"
  54 #include "addrtoname.h"
  55
  56 static struct tok proc2str[] = {
  57         { PMAPPROC_NULL,        "null" },
  58         { PMAPPROC_SET,         "set" },
  59         { PMAPPROC_UNSET,       "unset" },
  60         { PMAPPROC_GETPORT,     "getport" },
  61         { PMAPPROC_DUMP,        "dump" },
  62         { 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 rpc_msg *rp;
  74         register const struct ip *ip;
  75         u_int32_t x;
  76
  77         rp = (struct rpc_msg *)bp;
  78         ip = (struct ip *)bp2;
  79
  80         if (!nflag)
  81                 (void)printf("%s.%x > %s.sunrpc: %d",
  82                              ipaddr_string(&ip->ip_src),
  83                              (u_int32_t)ntohl(rp->rm_xid),
  84                              ipaddr_string(&ip->ip_dst),
  85                              length);
  86         else
  87                 (void)printf("%s.%x > %s.%x: %d",
  88                              ipaddr_string(&ip->ip_src),
  89                              (u_int32_t)ntohl(rp->rm_xid),
  90                              ipaddr_string(&ip->ip_dst),
  91                              PMAPPORT,
  92                              length);
  93         printf(" %s", tok2str(proc2str, " proc #%u",
  94             (u_int32_t)ntohl(rp->rm_call.cb_proc)));
  95         x = ntohl(rp->rm_call.cb_rpcvers);
  96         if (x != 2)
  97                 printf(" [rpcver %u]", x);
  98
  99         switch (ntohl(rp->rm_call.cb_proc)) {
 100
 101         case PMAPPROC_SET:
 102         case PMAPPROC_UNSET:
 103         case PMAPPROC_GETPORT:
 104         case PMAPPROC_CALLIT:
 105                 x = ntohl(rp->rm_call.cb_prog);
 106                 if (!nflag)
 107                         printf(" %s", progstr(x));
 108                 else
 109                         printf(" %u", x);
 110                 printf(".%u", (u_int32_t)ntohl(rp->rm_call.cb_vers));
 111                 break;
 112         }
 113 }
 114
 115 static char *
 116 progstr(prog)
 117         u_int32_t prog;
 118 {
 119         register struct rpcent *rp;
 120         static char buf[32];
 121         static int lastprog = 0;
 122
 123         if (lastprog != 0 && prog == lastprog)
 124                 return (buf);
 125         rp = getrpcbynumber(prog);
 126         if (rp == NULL)
 127                 (void) sprintf(buf, "#%u", prog);
 128         else
 129                 strcpy(buf, rp->r_name);
 130         return (buf);
 131 }