print-sunrpc.c revision 1.7
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 1.7 2017/02/05 04:05:05 spz Exp $"); 25#endif 26 27/* \summary: Sun Remote Procedure Call printer */ 28 29#ifdef HAVE_CONFIG_H 30#include "config.h" 31#endif 32 33/* 34 * At least on HP-UX: 35 * 36 * 1) getrpcbynumber() is declared in <netdb.h>, not any of the RPC 37 * header files 38 * 39 * and 40 * 41 * 2) if _XOPEN_SOURCE_EXTENDED is defined, <netdb.h> doesn't declare 42 * it 43 * 44 * so we undefine it. 45 */ 46#undef _XOPEN_SOURCE_EXTENDED 47 48#include <netdissect-stdinc.h> 49 50#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 51#include <rpc/rpc.h> 52#ifdef HAVE_RPC_RPCENT_H 53#include <rpc/rpcent.h> 54#endif /* HAVE_RPC_RPCENT_H */ 55#endif /* defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) */ 56 57#include <stdio.h> 58#include <string.h> 59 60#include "netdissect.h" 61#include "addrtoname.h" 62#include "extract.h" 63 64#include "ip.h" 65#include "ip6.h" 66 67#include "rpc_auth.h" 68#include "rpc_msg.h" 69 70/* 71 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 72 * unrestricted use provided that this legend is included on all tape 73 * media and as a part of the software program in whole or part. Users 74 * may copy or modify Sun RPC without charge, but are not authorized 75 * to license or distribute it to anyone else except as part of a product or 76 * program developed by the user. 77 * 78 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 79 * WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR 80 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 81 * 82 * Sun RPC is provided with no support and without any obligation on the 83 * part of Sun Microsystems, Inc. to assist in its use, correction, 84 * modification or enhancement. 85 * 86 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 87 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 88 * OR ANY PART THEREOF. 89 * 90 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 91 * or profits or other special, indirect and consequential damages, even if 92 * Sun has been advised of the possibility of such damages. 93 * 94 * Sun Microsystems, Inc. 95 * 2550 Garcia Avenue 96 * Mountain View, California 94043 97 * 98 * from: @(#)pmap_prot.h 1.14 88/02/08 SMI 99 * from: @(#)pmap_prot.h 2.1 88/07/29 4.0 RPCSRC 100 * $FreeBSD: src/include/rpc/pmap_prot.h,v 1.9.2.1 1999/08/29 14:39:05 peter Exp $ 101 */ 102 103/* 104 * pmap_prot.h 105 * Protocol for the local binder service, or pmap. 106 * 107 * Copyright (C) 1984, Sun Microsystems, Inc. 108 * 109 * The following procedures are supported by the protocol: 110 * 111 * PMAPPROC_NULL() returns () 112 * takes nothing, returns nothing 113 * 114 * PMAPPROC_SET(struct pmap) returns (bool_t) 115 * TRUE is success, FALSE is failure. Registers the tuple 116 * [prog, vers, prot, port]. 117 * 118 * PMAPPROC_UNSET(struct pmap) returns (bool_t) 119 * TRUE is success, FALSE is failure. Un-registers pair 120 * [prog, vers]. prot and port are ignored. 121 * 122 * PMAPPROC_GETPORT(struct pmap) returns (long unsigned). 123 * 0 is failure. Otherwise returns the port number where the pair 124 * [prog, vers] is registered. It may lie! 125 * 126 * PMAPPROC_DUMP() RETURNS (struct pmaplist *) 127 * 128 * PMAPPROC_CALLIT(unsigned, unsigned, unsigned, string<>) 129 * RETURNS (port, string<>); 130 * usage: encapsulatedresults = PMAPPROC_CALLIT(prog, vers, proc, encapsulatedargs); 131 * Calls the procedure on the local machine. If it is not registered, 132 * this procedure is quite; ie it does not return error information!!! 133 * This procedure only is supported on rpc/udp and calls via 134 * rpc/udp. This routine only passes null authentication parameters. 135 * This file has no interface to xdr routines for PMAPPROC_CALLIT. 136 * 137 * The service supports remote procedure calls on udp/ip or tcp/ip socket 111. 138 */ 139 140#define SUNRPC_PMAPPORT ((uint16_t)111) 141#define SUNRPC_PMAPPROG ((uint32_t)100000) 142#define SUNRPC_PMAPVERS ((uint32_t)2) 143#define SUNRPC_PMAPVERS_PROTO ((uint32_t)2) 144#define SUNRPC_PMAPVERS_ORIG ((uint32_t)1) 145#define SUNRPC_PMAPPROC_NULL ((uint32_t)0) 146#define SUNRPC_PMAPPROC_SET ((uint32_t)1) 147#define SUNRPC_PMAPPROC_UNSET ((uint32_t)2) 148#define SUNRPC_PMAPPROC_GETPORT ((uint32_t)3) 149#define SUNRPC_PMAPPROC_DUMP ((uint32_t)4) 150#define SUNRPC_PMAPPROC_CALLIT ((uint32_t)5) 151 152struct sunrpc_pmap { 153 uint32_t pm_prog; 154 uint32_t pm_vers; 155 uint32_t pm_prot; 156 uint32_t pm_port; 157}; 158 159static const struct tok proc2str[] = { 160 { SUNRPC_PMAPPROC_NULL, "null" }, 161 { SUNRPC_PMAPPROC_SET, "set" }, 162 { SUNRPC_PMAPPROC_UNSET, "unset" }, 163 { SUNRPC_PMAPPROC_GETPORT, "getport" }, 164 { SUNRPC_PMAPPROC_DUMP, "dump" }, 165 { SUNRPC_PMAPPROC_CALLIT, "call" }, 166 { 0, NULL } 167}; 168 169/* Forwards */ 170static char *progstr(uint32_t); 171 172void 173sunrpcrequest_print(netdissect_options *ndo, register const u_char *bp, 174 register u_int length, register const u_char *bp2) 175{ 176 register const struct sunrpc_msg *rp; 177 register const struct ip *ip; 178 register const struct ip6_hdr *ip6; 179 uint32_t x; 180 char srcid[20], dstid[20]; /*fits 32bit*/ 181 182 rp = (const struct sunrpc_msg *)bp; 183 184 if (!ndo->ndo_nflag) { 185 snprintf(srcid, sizeof(srcid), "0x%x", 186 EXTRACT_32BITS(&rp->rm_xid)); 187 strlcpy(dstid, "sunrpc", sizeof(dstid)); 188 } else { 189 snprintf(srcid, sizeof(srcid), "0x%x", 190 EXTRACT_32BITS(&rp->rm_xid)); 191 snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT); 192 } 193 194 switch (IP_V((const struct ip *)bp2)) { 195 case 4: 196 ip = (const struct ip *)bp2; 197 ND_PRINT((ndo, "%s.%s > %s.%s: %d", 198 ipaddr_string(ndo, &ip->ip_src), srcid, 199 ipaddr_string(ndo, &ip->ip_dst), dstid, length)); 200 break; 201 case 6: 202 ip6 = (const struct ip6_hdr *)bp2; 203 ND_PRINT((ndo, "%s.%s > %s.%s: %d", 204 ip6addr_string(ndo, &ip6->ip6_src), srcid, 205 ip6addr_string(ndo, &ip6->ip6_dst), dstid, length)); 206 break; 207 default: 208 ND_PRINT((ndo, "%s.%s > %s.%s: %d", "?", srcid, "?", dstid, length)); 209 break; 210 } 211 212 ND_PRINT((ndo, " %s", tok2str(proc2str, " proc #%u", 213 EXTRACT_32BITS(&rp->rm_call.cb_proc)))); 214 x = EXTRACT_32BITS(&rp->rm_call.cb_rpcvers); 215 if (x != 2) 216 ND_PRINT((ndo, " [rpcver %u]", x)); 217 218 switch (EXTRACT_32BITS(&rp->rm_call.cb_proc)) { 219 220 case SUNRPC_PMAPPROC_SET: 221 case SUNRPC_PMAPPROC_UNSET: 222 case SUNRPC_PMAPPROC_GETPORT: 223 case SUNRPC_PMAPPROC_CALLIT: 224 x = EXTRACT_32BITS(&rp->rm_call.cb_prog); 225 if (!ndo->ndo_nflag) 226 ND_PRINT((ndo, " %s", progstr(x))); 227 else 228 ND_PRINT((ndo, " %u", x)); 229 ND_PRINT((ndo, ".%u", EXTRACT_32BITS(&rp->rm_call.cb_vers))); 230 break; 231 } 232} 233 234static char * 235progstr(uint32_t prog) 236{ 237#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 238 register struct rpcent *rp; 239#endif 240 static char buf[32]; 241 static uint32_t lastprog = 0; 242 243 if (lastprog != 0 && prog == lastprog) 244 return (buf); 245#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 246 rp = getrpcbynumber(prog); 247 if (rp == NULL) 248#endif 249 (void) snprintf(buf, sizeof(buf), "#%u", prog); 250#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 251 else 252 strlcpy(buf, rp->r_name, sizeof(buf)); 253#endif 254 return (buf); 255} 256