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 #include <config.h> 25 26 /* 27 * At least on HP-UX: 28 * 29 * 1) getrpcbynumber() is declared in <netdb.h>, not any of the RPC 30 * header files 31 * 32 * and 33 * 34 * 2) if _XOPEN_SOURCE_EXTENDED is defined, <netdb.h> doesn't declare 35 * it 36 * 37 * so we undefine it. 38 */ 39 #undef _XOPEN_SOURCE_EXTENDED 40 41 #include "netdissect-stdinc.h" 42 43 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 44 #include <rpc/rpc.h> 45 #ifdef HAVE_RPC_RPCENT_H 46 #include <rpc/rpcent.h> 47 #endif /* HAVE_RPC_RPCENT_H */ 48 #endif /* defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) */ 49 50 #include <stdio.h> 51 #include <string.h> 52 53 #define ND_LONGJMP_FROM_TCHECK 54 #include "netdissect.h" 55 #include "addrtoname.h" 56 #include "extract.h" 57 58 #include "ip.h" 59 #include "ip6.h" 60 61 #include "rpc_auth.h" 62 #include "rpc_msg.h" 63 64 /* 65 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 66 * unrestricted use provided that this legend is included on all tape 67 * media and as a part of the software program in whole or part. Users 68 * may copy or modify Sun RPC without charge, but are not authorized 69 * to license or distribute it to anyone else except as part of a product or 70 * program developed by the user. 71 * 72 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 73 * WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR 74 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 75 * 76 * Sun RPC is provided with no support and without any obligation on the 77 * part of Sun Microsystems, Inc. to assist in its use, correction, 78 * modification or enhancement. 79 * 80 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 81 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 82 * OR ANY PART THEREOF. 83 * 84 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 85 * or profits or other special, indirect and consequential damages, even if 86 * Sun has been advised of the possibility of such damages. 87 * 88 * Sun Microsystems, Inc. 89 * 2550 Garcia Avenue 90 * Mountain View, California 94043 91 * 92 * from: @(#)pmap_prot.h 1.14 88/02/08 SMI 93 * from: @(#)pmap_prot.h 2.1 88/07/29 4.0 RPCSRC 94 * $FreeBSD: projects/clang400-import/contrib/tcpdump/print-sunrpc.c 276788 2015-01-07 19:55:18Z delphij $ 95 */ 96 97 /* 98 * pmap_prot.h 99 * Protocol for the local binder service, or pmap. 100 * 101 * Copyright (C) 1984, Sun Microsystems, Inc. 102 * 103 * The following procedures are supported by the protocol: 104 * 105 * PMAPPROC_NULL() returns () 106 * takes nothing, returns nothing 107 * 108 * PMAPPROC_SET(struct pmap) returns (bool_t) 109 * TRUE is success, FALSE is failure. Registers the tuple 110 * [prog, vers, prot, port]. 111 * 112 * PMAPPROC_UNSET(struct pmap) returns (bool_t) 113 * TRUE is success, FALSE is failure. Un-registers pair 114 * [prog, vers]. prot and port are ignored. 115 * 116 * PMAPPROC_GETPORT(struct pmap) returns (long unsigned). 117 * 0 is failure. Otherwise returns the port number where the pair 118 * [prog, vers] is registered. It may lie! 119 * 120 * PMAPPROC_DUMP() RETURNS (struct pmaplist *) 121 * 122 * PMAPPROC_CALLIT(unsigned, unsigned, unsigned, string<>) 123 * RETURNS (port, string<>); 124 * usage: encapsulatedresults = PMAPPROC_CALLIT(prog, vers, proc, encapsulatedargs); 125 * Calls the procedure on the local machine. If it is not registered, 126 * this procedure is quite; ie it does not return error information!!! 127 * This procedure only is supported on rpc/udp and calls via 128 * rpc/udp. This routine only passes null authentication parameters. 129 * This file has no interface to xdr routines for PMAPPROC_CALLIT. 130 * 131 * The service supports remote procedure calls on udp/ip or tcp/ip socket 111. 132 */ 133 134 #define SUNRPC_PMAPPORT ((uint16_t)111) 135 #define SUNRPC_PMAPPROC_NULL ((uint32_t)0) 136 #define SUNRPC_PMAPPROC_SET ((uint32_t)1) 137 #define SUNRPC_PMAPPROC_UNSET ((uint32_t)2) 138 #define SUNRPC_PMAPPROC_GETPORT ((uint32_t)3) 139 #define SUNRPC_PMAPPROC_DUMP ((uint32_t)4) 140 #define SUNRPC_PMAPPROC_CALLIT ((uint32_t)5) 141 142 static const struct tok proc2str[] = { 143 { SUNRPC_PMAPPROC_NULL, "null" }, 144 { SUNRPC_PMAPPROC_SET, "set" }, 145 { SUNRPC_PMAPPROC_UNSET, "unset" }, 146 { SUNRPC_PMAPPROC_GETPORT, "getport" }, 147 { SUNRPC_PMAPPROC_DUMP, "dump" }, 148 { SUNRPC_PMAPPROC_CALLIT, "call" }, 149 { 0, NULL } 150 }; 151 152 /* Forwards */ 153 static char *progstr(uint32_t); 154 155 void 156 sunrpc_print(netdissect_options *ndo, const u_char *bp, 157 u_int length, const u_char *bp2) 158 { 159 const struct sunrpc_msg *rp; 160 const struct ip *ip; 161 const struct ip6_hdr *ip6; 162 uint32_t x; 163 char srcid[20], dstid[20]; /*fits 32bit*/ 164 165 ndo->ndo_protocol = "sunrpc"; 166 rp = (const struct sunrpc_msg *)bp; 167 ND_TCHECK_SIZE(rp); 168 169 if (!ndo->ndo_nflag) { 170 snprintf(srcid, sizeof(srcid), "0x%x", 171 GET_BE_U_4(rp->rm_xid)); 172 strlcpy(dstid, "sunrpc", sizeof(dstid)); 173 } else { 174 snprintf(srcid, sizeof(srcid), "0x%x", 175 GET_BE_U_4(rp->rm_xid)); 176 snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT); 177 } 178 179 switch (IP_V((const struct ip *)bp2)) { 180 case 4: 181 ip = (const struct ip *)bp2; 182 ND_PRINT("%s.%s > %s.%s: %u", 183 GET_IPADDR_STRING(ip->ip_src), srcid, 184 GET_IPADDR_STRING(ip->ip_dst), dstid, length); 185 break; 186 case 6: 187 ip6 = (const struct ip6_hdr *)bp2; 188 ND_PRINT("%s.%s > %s.%s: %u", 189 GET_IP6ADDR_STRING(ip6->ip6_src), srcid, 190 GET_IP6ADDR_STRING(ip6->ip6_dst), dstid, length); 191 break; 192 default: 193 ND_PRINT("%s.%s > %s.%s: %u", "?", srcid, "?", dstid, length); 194 break; 195 } 196 197 ND_PRINT(" %s", tok2str(proc2str, " proc #%u", 198 GET_BE_U_4(rp->rm_call.cb_proc))); 199 x = GET_BE_U_4(rp->rm_call.cb_rpcvers); 200 if (x != SUNRPC_MSG_VERSION) 201 ND_PRINT(" [rpcver %u]", x); 202 203 switch (GET_BE_U_4(rp->rm_call.cb_proc)) { 204 205 case SUNRPC_PMAPPROC_SET: 206 case SUNRPC_PMAPPROC_UNSET: 207 case SUNRPC_PMAPPROC_GETPORT: 208 case SUNRPC_PMAPPROC_CALLIT: 209 x = GET_BE_U_4(rp->rm_call.cb_prog); 210 if (!ndo->ndo_nflag) 211 ND_PRINT(" %s", progstr(x)); 212 else 213 ND_PRINT(" %u", x); 214 ND_PRINT(".%u", GET_BE_U_4(rp->rm_call.cb_vers)); 215 break; 216 } 217 } 218 219 static char * 220 progstr(uint32_t prog) 221 { 222 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 223 struct rpcent *rp; 224 #endif 225 static char buf[32]; 226 static uint32_t lastprog = 0; 227 228 if (lastprog != 0 && prog == lastprog) 229 return (buf); 230 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 231 rp = getrpcbynumber(prog); 232 if (rp != NULL) 233 strlcpy(buf, rp->r_name, sizeof(buf)); 234 else 235 #endif 236 (void) snprintf(buf, sizeof(buf), "#%u", prog); 237 lastprog = prog; 238 return (buf); 239 } 240