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/* \summary: Sun Remote Procedure Call printer */ 23 24#ifdef HAVE_CONFIG_H 25#include "config.h" 26#endif 27 28/* 29 * At least on HP-UX: 30 * 31 * 1) getrpcbynumber() is declared in <netdb.h>, not any of the RPC 32 * header files 33 * 34 * and 35 * 36 * 2) if _XOPEN_SOURCE_EXTENDED is defined, <netdb.h> doesn't declare 37 * it 38 * 39 * so we undefine it. 40 */ 41#undef _XOPEN_SOURCE_EXTENDED 42 43#include <netdissect-stdinc.h> 44 45#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 46#include <rpc/rpc.h> 47#ifdef HAVE_RPC_RPCENT_H 48#include <rpc/rpcent.h> 49#endif /* HAVE_RPC_RPCENT_H */ 50#endif /* defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) */ 51 52#include <stdio.h> 53#include <string.h> 54 55#include "netdissect.h" 56#include "addrtoname.h" 57#include "extract.h" 58 59#include "ip.h" 60#include "ip6.h" 61 62#include "rpc_auth.h" 63#include "rpc_msg.h" 64 65/* 66 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 67 * unrestricted use provided that this legend is included on all tape 68 * media and as a part of the software program in whole or part. Users 69 * may copy or modify Sun RPC without charge, but are not authorized 70 * to license or distribute it to anyone else except as part of a product or 71 * program developed by the user. 72 * 73 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 74 * WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR 75 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 76 * 77 * Sun RPC is provided with no support and without any obligation on the 78 * part of Sun Microsystems, Inc. to assist in its use, correction, 79 * modification or enhancement. 80 * 81 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 82 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 83 * OR ANY PART THEREOF. 84 * 85 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 86 * or profits or other special, indirect and consequential damages, even if 87 * Sun has been advised of the possibility of such damages. 88 * 89 * Sun Microsystems, Inc. 90 * 2550 Garcia Avenue 91 * Mountain View, California 94043 92 * 93 * from: @(#)pmap_prot.h 1.14 88/02/08 SMI 94 * from: @(#)pmap_prot.h 2.1 88/07/29 4.0 RPCSRC 95 * $FreeBSD: projects/clang400-import/contrib/tcpdump/print-sunrpc.c 276788 2015-01-07 19:55:18Z delphij $ 96 */ 97 98/* 99 * pmap_prot.h 100 * Protocol for the local binder service, or pmap. 101 * 102 * Copyright (C) 1984, Sun Microsystems, Inc. 103 * 104 * The following procedures are supported by the protocol: 105 * 106 * PMAPPROC_NULL() returns () 107 * takes nothing, returns nothing 108 * 109 * PMAPPROC_SET(struct pmap) returns (bool_t) 110 * TRUE is success, FALSE is failure. Registers the tuple 111 * [prog, vers, prot, port]. 112 * 113 * PMAPPROC_UNSET(struct pmap) returns (bool_t) 114 * TRUE is success, FALSE is failure. Un-registers pair 115 * [prog, vers]. prot and port are ignored. 116 * 117 * PMAPPROC_GETPORT(struct pmap) returns (long unsigned). 118 * 0 is failure. Otherwise returns the port number where the pair 119 * [prog, vers] is registered. It may lie! 120 * 121 * PMAPPROC_DUMP() RETURNS (struct pmaplist *) 122 * 123 * PMAPPROC_CALLIT(unsigned, unsigned, unsigned, string<>) 124 * RETURNS (port, string<>); 125 * usage: encapsulatedresults = PMAPPROC_CALLIT(prog, vers, proc, encapsulatedargs); 126 * Calls the procedure on the local machine. If it is not registered, 127 * this procedure is quite; ie it does not return error information!!! 128 * This procedure only is supported on rpc/udp and calls via 129 * rpc/udp. This routine only passes null authentication parameters. 130 * This file has no interface to xdr routines for PMAPPROC_CALLIT. 131 * 132 * The service supports remote procedure calls on udp/ip or tcp/ip socket 111. 133 */ 134 135#define SUNRPC_PMAPPORT ((uint16_t)111) 136#define SUNRPC_PMAPPROG ((uint32_t)100000) 137#define SUNRPC_PMAPVERS ((uint32_t)2) 138#define SUNRPC_PMAPVERS_PROTO ((uint32_t)2) 139#define SUNRPC_PMAPVERS_ORIG ((uint32_t)1) 140#define SUNRPC_PMAPPROC_NULL ((uint32_t)0) 141#define SUNRPC_PMAPPROC_SET ((uint32_t)1) 142#define SUNRPC_PMAPPROC_UNSET ((uint32_t)2) 143#define SUNRPC_PMAPPROC_GETPORT ((uint32_t)3) 144#define SUNRPC_PMAPPROC_DUMP ((uint32_t)4) 145#define SUNRPC_PMAPPROC_CALLIT ((uint32_t)5) 146 147struct sunrpc_pmap { 148 uint32_t pm_prog; 149 uint32_t pm_vers; 150 uint32_t pm_prot; 151 uint32_t pm_port; 152}; 153 154static const struct tok proc2str[] = { 155 { SUNRPC_PMAPPROC_NULL, "null" }, 156 { SUNRPC_PMAPPROC_SET, "set" }, 157 { SUNRPC_PMAPPROC_UNSET, "unset" }, 158 { SUNRPC_PMAPPROC_GETPORT, "getport" }, 159 { SUNRPC_PMAPPROC_DUMP, "dump" }, 160 { SUNRPC_PMAPPROC_CALLIT, "call" }, 161 { 0, NULL } 162}; 163 164/* Forwards */ 165static char *progstr(uint32_t); 166 167void 168sunrpcrequest_print(netdissect_options *ndo, register const u_char *bp, 169 register u_int length, register const u_char *bp2) 170{ 171 register const struct sunrpc_msg *rp; 172 register const struct ip *ip; 173 register const struct ip6_hdr *ip6; 174 uint32_t x; 175 char srcid[20], dstid[20]; /*fits 32bit*/ 176 177 rp = (const struct sunrpc_msg *)bp; 178 179 if (!ndo->ndo_nflag) { 180 snprintf(srcid, sizeof(srcid), "0x%x", 181 EXTRACT_32BITS(&rp->rm_xid)); 182 strlcpy(dstid, "sunrpc", sizeof(dstid)); 183 } else { 184 snprintf(srcid, sizeof(srcid), "0x%x", 185 EXTRACT_32BITS(&rp->rm_xid)); 186 snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT); 187 } 188 189 switch (IP_V((const struct ip *)bp2)) { 190 case 4: 191 ip = (const struct ip *)bp2; 192 ND_PRINT((ndo, "%s.%s > %s.%s: %d", 193 ipaddr_string(ndo, &ip->ip_src), srcid, 194 ipaddr_string(ndo, &ip->ip_dst), dstid, length)); 195 break; 196 case 6: 197 ip6 = (const struct ip6_hdr *)bp2; 198 ND_PRINT((ndo, "%s.%s > %s.%s: %d", 199 ip6addr_string(ndo, &ip6->ip6_src), srcid, 200 ip6addr_string(ndo, &ip6->ip6_dst), dstid, length)); 201 break; 202 default: 203 ND_PRINT((ndo, "%s.%s > %s.%s: %d", "?", srcid, "?", dstid, length)); 204 break; 205 } 206 207 ND_PRINT((ndo, " %s", tok2str(proc2str, " proc #%u", 208 EXTRACT_32BITS(&rp->rm_call.cb_proc)))); 209 x = EXTRACT_32BITS(&rp->rm_call.cb_rpcvers); 210 if (x != 2) 211 ND_PRINT((ndo, " [rpcver %u]", x)); 212 213 switch (EXTRACT_32BITS(&rp->rm_call.cb_proc)) { 214 215 case SUNRPC_PMAPPROC_SET: 216 case SUNRPC_PMAPPROC_UNSET: 217 case SUNRPC_PMAPPROC_GETPORT: 218 case SUNRPC_PMAPPROC_CALLIT: 219 x = EXTRACT_32BITS(&rp->rm_call.cb_prog); 220 if (!ndo->ndo_nflag) 221 ND_PRINT((ndo, " %s", progstr(x))); 222 else 223 ND_PRINT((ndo, " %u", x)); 224 ND_PRINT((ndo, ".%u", EXTRACT_32BITS(&rp->rm_call.cb_vers))); 225 break; 226 } 227} 228 229static char * 230progstr(uint32_t prog) 231{ 232#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 233 register struct rpcent *rp; 234#endif 235 static char buf[32]; 236 static uint32_t lastprog = 0; 237 238 if (lastprog != 0 && prog == lastprog) 239 return (buf); 240#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 241 rp = getrpcbynumber(prog); 242 if (rp == NULL) 243#endif 244 (void) snprintf(buf, sizeof(buf), "#%u", prog); 245#if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 246 else 247 strlcpy(buf, rp->r_name, sizeof(buf)); 248#endif 249 return (buf); 250} 251