print-sunrpc.c revision 1.5
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 153struct sunrpc_pmap { 154 uint32_t pm_prog; 155 uint32_t pm_vers; 156 uint32_t pm_prot; 157 uint32_t pm_port; 158}; 159 160static 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 */ 171static char *progstr(uint32_t); 172 173void 174sunrpcrequest_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 239static char * 240progstr(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} 261