external/bsd/tcpdump/dist/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 #include <sys/cdefs.h>
  23 #ifndef lint
  24 __RCSID("$NetBSD: print-sunrpc.c,v 1.5 2014/11/20 03:05:03 christos Exp $");
  25 #endif
  26
  27 #define NETDISSECT_REWORKED
  28 #ifdef HAVE_CONFIG_H
  29 #include "config.h"
  30 #endif
  31
  32 /*
  33  * At least on HP-UX:
  34  *
  35  *      1) getrpcbynumber() is declared in <netdb.h>, not any of the RPC
  36  *         header files
  37  *
  38  * and
  39  *
  40  *      2) if _XOPEN_SOURCE_EXTENDED is defined, <netdb.h> doesn't declare
  41  *         it
  42  *
  43  * so we undefine it.
  44  */
  45 #undef _XOPEN_SOURCE_EXTENDED
  46
  47 #include <tcpdump-stdinc.h>
  48
  49 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
  50 #include <rpc/rpc.h>
  51 #ifdef HAVE_RPC_RPCENT_H
  52 #include <rpc/rpcent.h>
  53 #endif /* HAVE_RPC_RPCENT_H */
  54 #endif /* defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) */
  55
  56 #include <stdio.h>
  57 #include <string.h>
  58
  59 #include "interface.h"
  60 #include "addrtoname.h"
  61 #include "extract.h"
  62
  63 #include "ip.h"
  64 #ifdef INET6
  65 #include "ip6.h"
  66 #endif
  67
  68 #include "rpc_auth.h"
  69 #include "rpc_msg.h"
  70
  71 /*
  72  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  73  * unrestricted use provided that this legend is included on all tape
  74  * media and as a part of the software program in whole or part.  Users
  75  * may copy or modify Sun RPC without charge, but are not authorized
  76  * to license or distribute it to anyone else except as part of a product or
  77  * program developed by the user.
  78  *
  79  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  80  * WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  81  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  82  *
  83  * Sun RPC is provided with no support and without any obligation on the
  84  * part of Sun Microsystems, Inc. to assist in its use, correction,
  85  * modification or enhancement.
  86  *
  87  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  88  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  89  * OR ANY PART THEREOF.
  90  *
  91  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  92  * or profits or other special, indirect and consequential damages, even if
  93  * Sun has been advised of the possibility of such damages.
  94  *
  95  * Sun Microsystems, Inc.
  96  * 2550 Garcia Avenue
  97  * Mountain View, California  94043
  98  *
  99  *      from: @(#)pmap_prot.h 1.14 88/02/08 SMI
 100  *      from: @(#)pmap_prot.h   2.1 88/07/29 4.0 RPCSRC
 101  * $FreeBSD: src/include/rpc/pmap_prot.h,v 1.9.2.1 1999/08/29 14:39:05 peter Exp $
 102  */
 103
 104 /*
 105  * pmap_prot.h
 106  * Protocol for the local binder service, or pmap.
 107  *
 108  * Copyright (C) 1984, Sun Microsystems, Inc.
 109  *
 110  * The following procedures are supported by the protocol:
 111  *
 112  * PMAPPROC_NULL() returns ()
 113  *      takes nothing, returns nothing
 114  *
 115  * PMAPPROC_SET(struct pmap) returns (bool_t)
 116  *      TRUE is success, FALSE is failure.  Registers the tuple
 117  *      [prog, vers, prot, port].
 118  *
 119  * PMAPPROC_UNSET(struct pmap) returns (bool_t)
 120  *      TRUE is success, FALSE is failure.  Un-registers pair
 121  *      [prog, vers].  prot and port are ignored.
 122  *
 123  * PMAPPROC_GETPORT(struct pmap) returns (long unsigned).
 124  *      0 is failure.  Otherwise returns the port number where the pair
 125  *      [prog, vers] is registered.  It may lie!
 126  *
 127  * PMAPPROC_DUMP() RETURNS (struct pmaplist *)
 128  *
 129  * PMAPPROC_CALLIT(unsigned, unsigned, unsigned, string<>)
 130  *      RETURNS (port, string<>);
 131  * usage: encapsulatedresults = PMAPPROC_CALLIT(prog, vers, proc, encapsulatedargs);
 132  *      Calls the procedure on the local machine.  If it is not registered,
 133  *      this procedure is quite; ie it does not return error information!!!
 134  *      This procedure only is supported on rpc/udp and calls via
 135  *      rpc/udp.  This routine only passes null authentication parameters.
 136  *      This file has no interface to xdr routines for PMAPPROC_CALLIT.
 137  *
 138  * The service supports remote procedure calls on udp/ip or tcp/ip socket 111.
 139  */
 140
 141 #define SUNRPC_PMAPPORT         ((uint16_t)111)
 142 #define SUNRPC_PMAPPROG         ((uint32_t)100000)
 143 #define SUNRPC_PMAPVERS         ((uint32_t)2)
 144 #define SUNRPC_PMAPVERS_PROTO   ((uint32_t)2)
 145 #define SUNRPC_PMAPVERS_ORIG    ((uint32_t)1)
 146 #define SUNRPC_PMAPPROC_NULL    ((uint32_t)0)
 147 #define SUNRPC_PMAPPROC_SET     ((uint32_t)1)
 148 #define SUNRPC_PMAPPROC_UNSET   ((uint32_t)2)
 149 #define SUNRPC_PMAPPROC_GETPORT ((uint32_t)3)
 150 #define SUNRPC_PMAPPROC_DUMP    ((uint32_t)4)
 151 #define SUNRPC_PMAPPROC_CALLIT  ((uint32_t)5)
 152
 153 struct sunrpc_pmap {
 154         uint32_t pm_prog;
 155         uint32_t pm_vers;
 156         uint32_t pm_prot;
 157         uint32_t pm_port;
 158 };
 159
 160 static const struct tok proc2str[] = {
 161         { SUNRPC_PMAPPROC_NULL,         "null" },
 162         { SUNRPC_PMAPPROC_SET,          "set" },
 163         { SUNRPC_PMAPPROC_UNSET,        "unset" },
 164         { SUNRPC_PMAPPROC_GETPORT,      "getport" },
 165         { SUNRPC_PMAPPROC_DUMP,         "dump" },
 166         { SUNRPC_PMAPPROC_CALLIT,       "call" },
 167         { 0,                            NULL }
 168 };
 169
 170 /* Forwards */
 171 static char *progstr(uint32_t);
 172
 173 void
 174 sunrpcrequest_print(netdissect_options *ndo, register const u_char *bp,
 175                     register u_int length, register const u_char *bp2)
 176 {
 177         register const struct sunrpc_msg *rp;
 178         register const struct ip *ip;
 179 #ifdef INET6
 180         register const struct ip6_hdr *ip6;
 181 #endif
 182         uint32_t x;
 183         char srcid[20], dstid[20];      /*fits 32bit*/
 184
 185         rp = (struct sunrpc_msg *)bp;
 186
 187         if (!ndo->ndo_nflag) {
 188                 snprintf(srcid, sizeof(srcid), "0x%x",
 189                     EXTRACT_32BITS(&rp->rm_xid));
 190                 strlcpy(dstid, "sunrpc", sizeof(dstid));
 191         } else {
 192                 snprintf(srcid, sizeof(srcid), "0x%x",
 193                     EXTRACT_32BITS(&rp->rm_xid));
 194                 snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT);
 195         }
 196
 197         switch (IP_V((struct ip *)bp2)) {
 198         case 4:
 199                 ip = (struct ip *)bp2;
 200                 ND_PRINT((ndo, "%s.%s > %s.%s: %d",
 201                     ipaddr_string(ndo, &ip->ip_src), srcid,
 202                     ipaddr_string(ndo, &ip->ip_dst), dstid, length));
 203                 break;
 204 #ifdef INET6
 205         case 6:
 206                 ip6 = (struct ip6_hdr *)bp2;
 207                 ND_PRINT((ndo, "%s.%s > %s.%s: %d",
 208                     ip6addr_string(ndo, &ip6->ip6_src), srcid,
 209                     ip6addr_string(ndo, &ip6->ip6_dst), dstid, length));
 210                 break;
 211 #endif
 212         default:
 213                 ND_PRINT((ndo, "%s.%s > %s.%s: %d", "?", srcid, "?", dstid, length));
 214                 break;
 215         }
 216
 217         ND_PRINT((ndo, " %s", tok2str(proc2str, " proc #%u",
 218             EXTRACT_32BITS(&rp->rm_call.cb_proc))));
 219         x = EXTRACT_32BITS(&rp->rm_call.cb_rpcvers);
 220         if (x != 2)
 221                 ND_PRINT((ndo, " [rpcver %u]", x));
 222
 223         switch (EXTRACT_32BITS(&rp->rm_call.cb_proc)) {
 224
 225         case SUNRPC_PMAPPROC_SET:
 226         case SUNRPC_PMAPPROC_UNSET:
 227         case SUNRPC_PMAPPROC_GETPORT:
 228         case SUNRPC_PMAPPROC_CALLIT:
 229                 x = EXTRACT_32BITS(&rp->rm_call.cb_prog);
 230                 if (!ndo->ndo_nflag)
 231                         ND_PRINT((ndo, " %s", progstr(x)));
 232                 else
 233                         ND_PRINT((ndo, " %u", x));
 234                 ND_PRINT((ndo, ".%u", EXTRACT_32BITS(&rp->rm_call.cb_vers)));
 235                 break;
 236         }
 237 }
 238
 239 static char *
 240 progstr(uint32_t prog)
 241 {
 242 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
 243         register struct rpcent *rp;
 244 #endif
 245         static char buf[32];
 246         static uint32_t lastprog = 0;
 247
 248         if (lastprog != 0 && prog == lastprog)
 249                 return (buf);
 250 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
 251         rp = getrpcbynumber(prog);
 252         if (rp == NULL)
 253 #endif
 254                 (void) snprintf(buf, sizeof(buf), "#%u", prog);
 255 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
 256         else
 257                 strlcpy(buf, rp->r_name, sizeof(buf));
 258 #endif
 259         return (buf);
 260 }