print-sunrpc.c revision 1.6
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 1.6 2017/01/24 23:29:14 christos Exp $"); 25#endif 26 27#ifdef HAVE_CONFIG_H 28#include "config.h" 29#endif 30 31/* 32 * At least on HP-UX: 33 * 34 * 1) getrpcbynumber() is declared in <netdb.h>, not any of the RPC 35 * header files 36 * 37 * and 38 * 39 * 2) if _XOPEN_SOURCE_EXTENDED is defined, <netdb.h> doesn't declare 40 * it 41 * 42 * so we undefine it. 43 */ 44#undef _XOPEN_SOURCE_EXTENDED 45 46#include <netdissect-stdinc.h> 47 48#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 49#include <rpc/rpc.h> 50#ifdef HAVE_RPC_RPCENT_H 51#include <rpc/rpcent.h> 52#endif /* HAVE_RPC_RPCENT_H */ 53#endif /* defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) */ 54 55#include <stdio.h> 56#include <string.h> 57 58#include "netdissect.h" 59#include "addrtoname.h" 60#include "extract.h" 61 62#include "ip.h" 63#include "ip6.h" 64 65#include "rpc_auth.h" 66#include "rpc_msg.h" 67 68/* 69 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 70 * unrestricted use provided that this legend is included on all tape 71 * media and as a part of the software program in whole or part. Users 72 * may copy or modify Sun RPC without charge, but are not authorized 73 * to license or distribute it to anyone else except as part of a product or 74 * program developed by the user. 75 * 76 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 77 * WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR 78 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 79 * 80 * Sun RPC is provided with no support and without any obligation on the 81 * part of Sun Microsystems, Inc. to assist in its use, correction, 82 * modification or enhancement. 83 * 84 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 85 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 86 * OR ANY PART THEREOF. 87 * 88 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 89 * or profits or other special, indirect and consequential damages, even if 90 * Sun has been advised of the possibility of such damages. 91 * 92 * Sun Microsystems, Inc. 93 * 2550 Garcia Avenue 94 * Mountain View, California 94043 95 * 96 * from: @(#)pmap_prot.h 1.14 88/02/08 SMI 97 * from: @(#)pmap_prot.h 2.1 88/07/29 4.0 RPCSRC 98 * $FreeBSD: src/include/rpc/pmap_prot.h,v 1.9.2.1 1999/08/29 14:39:05 peter Exp $ 99 */ 100 101/* 102 * pmap_prot.h 103 * Protocol for the local binder service, or pmap. 104 * 105 * Copyright (C) 1984, Sun Microsystems, Inc. 106 * 107 * The following procedures are supported by the protocol: 108 * 109 * PMAPPROC_NULL() returns () 110 * takes nothing, returns nothing 111 * 112 * PMAPPROC_SET(struct pmap) returns (bool_t) 113 * TRUE is success, FALSE is failure. Registers the tuple 114 * [prog, vers, prot, port]. 115 * 116 * PMAPPROC_UNSET(struct pmap) returns (bool_t) 117 * TRUE is success, FALSE is failure. Un-registers pair 118 * [prog, vers]. prot and port are ignored. 119 * 120 * PMAPPROC_GETPORT(struct pmap) returns (long unsigned). 121 * 0 is failure. Otherwise returns the port number where the pair 122 * [prog, vers] is registered. It may lie! 123 * 124 * PMAPPROC_DUMP() RETURNS (struct pmaplist *) 125 * 126 * PMAPPROC_CALLIT(unsigned, unsigned, unsigned, string<>) 127 * RETURNS (port, string<>); 128 * usage: encapsulatedresults = PMAPPROC_CALLIT(prog, vers, proc, encapsulatedargs); 129 * Calls the procedure on the local machine. If it is not registered, 130 * this procedure is quite; ie it does not return error information!!! 131 * This procedure only is supported on rpc/udp and calls via 132 * rpc/udp. This routine only passes null authentication parameters. 133 * This file has no interface to xdr routines for PMAPPROC_CALLIT. 134 * 135 * The service supports remote procedure calls on udp/ip or tcp/ip socket 111. 136 */ 137 138#define SUNRPC_PMAPPORT ((uint16_t)111) 139#define SUNRPC_PMAPPROG ((uint32_t)100000) 140#define SUNRPC_PMAPVERS ((uint32_t)2) 141#define SUNRPC_PMAPVERS_PROTO ((uint32_t)2) 142#define SUNRPC_PMAPVERS_ORIG ((uint32_t)1) 143#define SUNRPC_PMAPPROC_NULL ((uint32_t)0) 144#define SUNRPC_PMAPPROC_SET ((uint32_t)1) 145#define SUNRPC_PMAPPROC_UNSET ((uint32_t)2) 146#define SUNRPC_PMAPPROC_GETPORT ((uint32_t)3) 147#define SUNRPC_PMAPPROC_DUMP ((uint32_t)4) 148#define SUNRPC_PMAPPROC_CALLIT ((uint32_t)5) 149 150struct sunrpc_pmap { 151 uint32_t pm_prog; 152 uint32_t pm_vers; 153 uint32_t pm_prot; 154 uint32_t pm_port; 155}; 156 157static const struct tok proc2str[] = { 158 { SUNRPC_PMAPPROC_NULL, "null" }, 159 { SUNRPC_PMAPPROC_SET, "set" }, 160 { SUNRPC_PMAPPROC_UNSET, "unset" }, 161 { SUNRPC_PMAPPROC_GETPORT, "getport" }, 162 { SUNRPC_PMAPPROC_DUMP, "dump" }, 163 { SUNRPC_PMAPPROC_CALLIT, "call" }, 164 { 0, NULL } 165}; 166 167/* Forwards */ 168static char *progstr(uint32_t); 169 170void 171sunrpcrequest_print(netdissect_options *ndo, register const u_char *bp, 172 register u_int length, register const u_char *bp2) 173{ 174 register const struct sunrpc_msg *rp; 175 register const struct ip *ip; 176 register const struct ip6_hdr *ip6; 177 uint32_t x; 178 char srcid[20], dstid[20]; /*fits 32bit*/ 179 180 rp = (const struct sunrpc_msg *)bp; 181 182 if (!ndo->ndo_nflag) { 183 snprintf(srcid, sizeof(srcid), "0x%x", 184 EXTRACT_32BITS(&rp->rm_xid)); 185 strlcpy(dstid, "sunrpc", sizeof(dstid)); 186 } else { 187 snprintf(srcid, sizeof(srcid), "0x%x", 188 EXTRACT_32BITS(&rp->rm_xid)); 189 snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT); 190 } 191 192 switch (IP_V((const struct ip *)bp2)) { 193 case 4: 194 ip = (const struct ip *)bp2; 195 ND_PRINT((ndo, "%s.%s > %s.%s: %d", 196 ipaddr_string(ndo, &ip->ip_src), srcid, 197 ipaddr_string(ndo, &ip->ip_dst), dstid, length)); 198 break; 199 case 6: 200 ip6 = (const struct ip6_hdr *)bp2; 201 ND_PRINT((ndo, "%s.%s > %s.%s: %d", 202 ip6addr_string(ndo, &ip6->ip6_src), srcid, 203 ip6addr_string(ndo, &ip6->ip6_dst), dstid, length)); 204 break; 205 default: 206 ND_PRINT((ndo, "%s.%s > %s.%s: %d", "?", srcid, "?", dstid, length)); 207 break; 208 } 209 210 ND_PRINT((ndo, " %s", tok2str(proc2str, " proc #%u", 211 EXTRACT_32BITS(&rp->rm_call.cb_proc)))); 212 x = EXTRACT_32BITS(&rp->rm_call.cb_rpcvers); 213 if (x != 2) 214 ND_PRINT((ndo, " [rpcver %u]", x)); 215 216 switch (EXTRACT_32BITS(&rp->rm_call.cb_proc)) { 217 218 case SUNRPC_PMAPPROC_SET: 219 case SUNRPC_PMAPPROC_UNSET: 220 case SUNRPC_PMAPPROC_GETPORT: 221 case SUNRPC_PMAPPROC_CALLIT: 222 x = EXTRACT_32BITS(&rp->rm_call.cb_prog); 223 if (!ndo->ndo_nflag) 224 ND_PRINT((ndo, " %s", progstr(x))); 225 else 226 ND_PRINT((ndo, " %u", x)); 227 ND_PRINT((ndo, ".%u", EXTRACT_32BITS(&rp->rm_call.cb_vers))); 228 break; 229 } 230} 231 232static char * 233progstr(uint32_t prog) 234{ 235#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 236 register struct rpcent *rp; 237#endif 238 static char buf[32]; 239 static uint32_t lastprog = 0; 240 241 if (lastprog != 0 && prog == lastprog) 242 return (buf); 243#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 244 rp = getrpcbynumber(prog); 245 if (rp == NULL) 246#endif 247 (void) snprintf(buf, sizeof(buf), "#%u", prog); 248#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 249 else 250 strlcpy(buf, rp->r_name, sizeof(buf)); 251#endif 252 return (buf); 253} 254