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 1.8 2023/08/17 20:19:40 christos 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 #define ND_LONGJMP_FROM_TCHECK 61 #include "netdissect.h" 62 #include "addrtoname.h" 63 #include "extract.h" 64 65 #include "ip.h" 66 #include "ip6.h" 67 68 #include "rpc_auth.h" 69 #include "rpc_msg.h" 70 71 /* 72 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 73 * unrestricted use provided that this legend is included on all tape 74 * media and as a part of the software program in whole or part. Users 75 * may copy or modify Sun RPC without charge, but are not authorized 76 * to license or distribute it to anyone else except as part of a product or 77 * program developed by the user. 78 * 79 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 80 * WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR 81 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 82 * 83 * Sun RPC is provided with no support and without any obligation on the 84 * part of Sun Microsystems, Inc. to assist in its use, correction, 85 * modification or enhancement. 86 * 87 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 88 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 89 * OR ANY PART THEREOF. 90 * 91 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 92 * or profits or other special, indirect and consequential damages, even if 93 * Sun has been advised of the possibility of such damages. 94 * 95 * Sun Microsystems, Inc. 96 * 2550 Garcia Avenue 97 * Mountain View, California 94043 98 * 99 * from: @(#)pmap_prot.h 1.14 88/02/08 SMI 100 * from: @(#)pmap_prot.h 2.1 88/07/29 4.0 RPCSRC 101 * $FreeBSD: src/include/rpc/pmap_prot.h,v 1.9.2.1 1999/08/29 14:39:05 peter Exp $ 102 */ 103 104 /* 105 * pmap_prot.h 106 * Protocol for the local binder service, or pmap. 107 * 108 * Copyright (C) 1984, Sun Microsystems, Inc. 109 * 110 * The following procedures are supported by the protocol: 111 * 112 * PMAPPROC_NULL() returns () 113 * takes nothing, returns nothing 114 * 115 * PMAPPROC_SET(struct pmap) returns (bool_t) 116 * TRUE is success, FALSE is failure. Registers the tuple 117 * [prog, vers, prot, port]. 118 * 119 * PMAPPROC_UNSET(struct pmap) returns (bool_t) 120 * TRUE is success, FALSE is failure. Un-registers pair 121 * [prog, vers]. prot and port are ignored. 122 * 123 * PMAPPROC_GETPORT(struct pmap) returns (long unsigned). 124 * 0 is failure. Otherwise returns the port number where the pair 125 * [prog, vers] is registered. It may lie! 126 * 127 * PMAPPROC_DUMP() RETURNS (struct pmaplist *) 128 * 129 * PMAPPROC_CALLIT(unsigned, unsigned, unsigned, string<>) 130 * RETURNS (port, string<>); 131 * usage: encapsulatedresults = PMAPPROC_CALLIT(prog, vers, proc, encapsulatedargs); 132 * Calls the procedure on the local machine. If it is not registered, 133 * this procedure is quite; ie it does not return error information!!! 134 * This procedure only is supported on rpc/udp and calls via 135 * rpc/udp. This routine only passes null authentication parameters. 136 * This file has no interface to xdr routines for PMAPPROC_CALLIT. 137 * 138 * The service supports remote procedure calls on udp/ip or tcp/ip socket 111. 139 */ 140 141 #define SUNRPC_PMAPPORT ((uint16_t)111) 142 #define SUNRPC_PMAPPROC_NULL ((uint32_t)0) 143 #define SUNRPC_PMAPPROC_SET ((uint32_t)1) 144 #define SUNRPC_PMAPPROC_UNSET ((uint32_t)2) 145 #define SUNRPC_PMAPPROC_GETPORT ((uint32_t)3) 146 #define SUNRPC_PMAPPROC_DUMP ((uint32_t)4) 147 #define SUNRPC_PMAPPROC_CALLIT ((uint32_t)5) 148 149 static const struct tok proc2str[] = { 150 { SUNRPC_PMAPPROC_NULL, "null" }, 151 { SUNRPC_PMAPPROC_SET, "set" }, 152 { SUNRPC_PMAPPROC_UNSET, "unset" }, 153 { SUNRPC_PMAPPROC_GETPORT, "getport" }, 154 { SUNRPC_PMAPPROC_DUMP, "dump" }, 155 { SUNRPC_PMAPPROC_CALLIT, "call" }, 156 { 0, NULL } 157 }; 158 159 /* Forwards */ 160 static char *progstr(uint32_t); 161 162 void 163 sunrpc_print(netdissect_options *ndo, const u_char *bp, 164 u_int length, const u_char *bp2) 165 { 166 const struct sunrpc_msg *rp; 167 const struct ip *ip; 168 const struct ip6_hdr *ip6; 169 uint32_t x; 170 char srcid[20], dstid[20]; /*fits 32bit*/ 171 172 ndo->ndo_protocol = "sunrpc"; 173 rp = (const struct sunrpc_msg *)bp; 174 ND_TCHECK_SIZE(rp); 175 176 if (!ndo->ndo_nflag) { 177 snprintf(srcid, sizeof(srcid), "0x%x", 178 GET_BE_U_4(rp->rm_xid)); 179 strlcpy(dstid, "sunrpc", sizeof(dstid)); 180 } else { 181 snprintf(srcid, sizeof(srcid), "0x%x", 182 GET_BE_U_4(rp->rm_xid)); 183 snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT); 184 } 185 186 switch (IP_V((const struct ip *)bp2)) { 187 case 4: 188 ip = (const struct ip *)bp2; 189 ND_PRINT("%s.%s > %s.%s: %u", 190 GET_IPADDR_STRING(ip->ip_src), srcid, 191 GET_IPADDR_STRING(ip->ip_dst), dstid, length); 192 break; 193 case 6: 194 ip6 = (const struct ip6_hdr *)bp2; 195 ND_PRINT("%s.%s > %s.%s: %u", 196 GET_IP6ADDR_STRING(ip6->ip6_src), srcid, 197 GET_IP6ADDR_STRING(ip6->ip6_dst), dstid, length); 198 break; 199 default: 200 ND_PRINT("%s.%s > %s.%s: %u", "?", srcid, "?", dstid, length); 201 break; 202 } 203 204 ND_PRINT(" %s", tok2str(proc2str, " proc #%u", 205 GET_BE_U_4(rp->rm_call.cb_proc))); 206 x = GET_BE_U_4(rp->rm_call.cb_rpcvers); 207 if (x != SUNRPC_MSG_VERSION) 208 ND_PRINT(" [rpcver %u]", x); 209 210 switch (GET_BE_U_4(rp->rm_call.cb_proc)) { 211 212 case SUNRPC_PMAPPROC_SET: 213 case SUNRPC_PMAPPROC_UNSET: 214 case SUNRPC_PMAPPROC_GETPORT: 215 case SUNRPC_PMAPPROC_CALLIT: 216 x = GET_BE_U_4(rp->rm_call.cb_prog); 217 if (!ndo->ndo_nflag) 218 ND_PRINT(" %s", progstr(x)); 219 else 220 ND_PRINT(" %u", x); 221 ND_PRINT(".%u", GET_BE_U_4(rp->rm_call.cb_vers)); 222 break; 223 } 224 } 225 226 static char * 227 progstr(uint32_t prog) 228 { 229 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 230 struct rpcent *rp; 231 #endif 232 static char buf[32]; 233 static uint32_t lastprog = 0; 234 235 if (lastprog != 0 && prog == lastprog) 236 return (buf); 237 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) 238 rp = getrpcbynumber(prog); 239 if (rp != NULL) 240 strlcpy(buf, rp->r_name, sizeof(buf)); 241 else 242 #endif 243 (void) snprintf(buf, sizeof(buf), "#%u", prog); 244 lastprog = prog; 245 return (buf); 246 } 247