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 #define ND_LONGJMP_FROM_TCHECK 56 #include "netdissect.h" 57 #include "addrtoname.h" 58 #include "extract.h" 59 60 #include "ip.h" 61 #include "ip6.h" 62 63 #include "rpc_auth.h" 64 #include "rpc_msg.h" 65 66 /* 67 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 68 * unrestricted use provided that this legend is included on all tape 69 * media and as a part of the software program in whole or part. Users 70 * may copy or modify Sun RPC without charge, but are not authorized 71 * to license or distribute it to anyone else except as part of a product or 72 * program developed by the user. 73 * 74 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 75 * WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR 76 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 77 * 78 * Sun RPC is provided with no support and without any obligation on the 79 * part of Sun Microsystems, Inc. to assist in its use, correction, 80 * modification or enhancement. 81 * 82 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 83 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 84 * OR ANY PART THEREOF. 85 * 86 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 87 * or profits or other special, indirect and consequential damages, even if 88 * Sun has been advised of the possibility of such damages. 89 * 90 * Sun Microsystems, Inc. 91 * 2550 Garcia Avenue 92 * Mountain View, California 94043 93 * 94 * from: @(#)pmap_prot.h 1.14 88/02/08 SMI 95 * from: @(#)pmap_prot.h 2.1 88/07/29 4.0 RPCSRC 96 * $FreeBSD: projects/clang400-import/contrib/tcpdump/print-sunrpc.c 276788 2015-01-07 19:55:18Z delphij $ 97 */ 98 99 /* 100 * pmap_prot.h 101 * Protocol for the local binder service, or pmap. 102 * 103 * Copyright (C) 1984, Sun Microsystems, Inc. 104 * 105 * The following procedures are supported by the protocol: 106 * 107 * PMAPPROC_NULL() returns () 108 * takes nothing, returns nothing 109 * 110 * PMAPPROC_SET(struct pmap) returns (bool_t) 111 * TRUE is success, FALSE is failure. Registers the tuple 112 * [prog, vers, prot, port]. 113 * 114 * PMAPPROC_UNSET(struct pmap) returns (bool_t) 115 * TRUE is success, FALSE is failure. Un-registers pair 116 * [prog, vers]. prot and port are ignored. 117 * 118 * PMAPPROC_GETPORT(struct pmap) returns (long unsigned). 119 * 0 is failure. Otherwise returns the port number where the pair 120 * [prog, vers] is registered. It may lie! 121 * 122 * PMAPPROC_DUMP() RETURNS (struct pmaplist *) 123 * 124 * PMAPPROC_CALLIT(unsigned, unsigned, unsigned, string<>) 125 * RETURNS (port, string<>); 126 * usage: encapsulatedresults = PMAPPROC_CALLIT(prog, vers, proc, encapsulatedargs); 127 * Calls the procedure on the local machine. If it is not registered, 128 * this procedure is quite; ie it does not return error information!!! 129 * This procedure only is supported on rpc/udp and calls via 130 * rpc/udp. This routine only passes null authentication parameters. 131 * This file has no interface to xdr routines for PMAPPROC_CALLIT. 132 * 133 * The service supports remote procedure calls on udp/ip or tcp/ip socket 111. 134 */ 135 136 #define SUNRPC_PMAPPORT ((uint16_t)111) 137 #define SUNRPC_PMAPPROC_NULL ((uint32_t)0) 138 #define SUNRPC_PMAPPROC_SET ((uint32_t)1) 139 #define SUNRPC_PMAPPROC_UNSET ((uint32_t)2) 140 #define SUNRPC_PMAPPROC_GETPORT ((uint32_t)3) 141 #define SUNRPC_PMAPPROC_DUMP ((uint32_t)4) 142 #define SUNRPC_PMAPPROC_CALLIT ((uint32_t)5) 143 144 static const struct tok proc2str[] = { 145 { SUNRPC_PMAPPROC_NULL, "null" }, 146 { SUNRPC_PMAPPROC_SET, "set" }, 147 { SUNRPC_PMAPPROC_UNSET, "unset" }, 148 { SUNRPC_PMAPPROC_GETPORT, "getport" }, 149 { SUNRPC_PMAPPROC_DUMP, "dump" }, 150 { SUNRPC_PMAPPROC_CALLIT, "call" }, 151 { 0, NULL } 152 }; 153 154 /* Forwards */ 155 static char *progstr(uint32_t); 156 157 void 158 sunrpc_print(netdissect_options *ndo, const u_char *bp, 159 u_int length, const u_char *bp2) 160 { 161 const struct sunrpc_msg *rp; 162 const struct ip *ip; 163 const struct ip6_hdr *ip6; 164 uint32_t x; 165 char srcid[20], dstid[20]; /*fits 32bit*/ 166 167 ndo->ndo_protocol = "sunrpc"; 168 rp = (const struct sunrpc_msg *)bp; 169 ND_TCHECK_SIZE(rp); 170 171 if (!ndo->ndo_nflag) { 172 snprintf(srcid, sizeof(srcid), "0x%x", 173 GET_BE_U_4(rp->rm_xid)); 174 strlcpy(dstid, "sunrpc", sizeof(dstid)); 175 } else { 176 snprintf(srcid, sizeof(srcid), "0x%x", 177 GET_BE_U_4(rp->rm_xid)); 178 snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT); 179 } 180 181 switch (IP_V((const struct ip *)bp2)) { 182 case 4: 183 ip = (const struct ip *)bp2; 184 ND_PRINT("%s.%s > %s.%s: %u", 185 GET_IPADDR_STRING(ip->ip_src), srcid, 186 GET_IPADDR_STRING(ip->ip_dst), dstid, length); 187 break; 188 case 6: 189 ip6 = (const struct ip6_hdr *)bp2; 190 ND_PRINT("%s.%s > %s.%s: %u", 191 GET_IP6ADDR_STRING(ip6->ip6_src), srcid, 192 GET_IP6ADDR_STRING(ip6->ip6_dst), dstid, length); 193 break; 194 default: 195 ND_PRINT("%s.%s > %s.%s: %u", "?", srcid, "?", dstid, length); 196 break; 197 } 198 199 ND_PRINT(" %s", tok2str(proc2str, " proc #%u", 200 GET_BE_U_4(rp->rm_call.cb_proc))); 201 x = GET_BE_U_4(rp->rm_call.cb_rpcvers); 202 if (x != SUNRPC_MSG_VERSION) 203 ND_PRINT(" [rpcver %u]", x); 204 205 switch (GET_BE_U_4(rp->rm_call.cb_proc)) { 206 207 case SUNRPC_PMAPPROC_SET: 208 case SUNRPC_PMAPPROC_UNSET: 209 case SUNRPC_PMAPPROC_GETPORT: 210 case SUNRPC_PMAPPROC_CALLIT: 211 x = GET_BE_U_4(rp->rm_call.cb_prog); 212 if (!ndo->ndo_nflag) 213 ND_PRINT(" %s", progstr(x)); 214 else 215 ND_PRINT(" %u", x); 216 ND_PRINT(".%u", GET_BE_U_4(rp->rm_call.cb_vers)); 217 break; 218 } 219 } 220 221 static char * 222 progstr(uint32_t prog) 223 { 224 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 225 struct rpcent *rp; 226 #endif 227 static char buf[32]; 228 static uint32_t lastprog = 0; 229 230 if (lastprog != 0 && prog == lastprog) 231 return (buf); 232 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 233 rp = getrpcbynumber(prog); 234 if (rp != NULL) 235 strlcpy(buf, rp->r_name, sizeof(buf)); 236 else 237 #endif 238 (void) snprintf(buf, sizeof(buf), "#%u", prog); 239 lastprog = prog; 240 return (buf); 241 } 242