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 #if 0 25 static const char rcsid[] _U_ = 26 "@(#) Header: /tcpdump/master/tcpdump/print-sunrpc.c,v 1.47 2005-04-27 21:43:48 guy Exp (LBL)"; 27 #else 28 __RCSID("$NetBSD: print-sunrpc.c,v 1.2 2010/12/05 05:11:30 christos Exp $"); 29 #endif 30 #endif 31 32 #ifdef HAVE_CONFIG_H 33 #include "config.h" 34 #endif 35 36 /* 37 * At least on HP-UX: 38 * 39 * 1) getrpcbynumber() is declared in <netdb.h>, not any of the RPC 40 * header files 41 * 42 * and 43 * 44 * 2) if _XOPEN_SOURCE_EXTENDED is defined, <netdb.h> doesn't declare 45 * it 46 * 47 * so we undefine it. 48 */ 49 #undef _XOPEN_SOURCE_EXTENDED 50 51 #include <tcpdump-stdinc.h> 52 53 #ifdef HAVE_GETRPCBYNUMBER 54 #include <rpc/rpc.h> 55 #ifdef HAVE_RPC_RPCENT_H 56 #include <rpc/rpcent.h> 57 #endif /* HAVE_RPC_RPCENT_H */ 58 #endif /* HAVE_GETRPCBYNUMBER */ 59 60 #include <stdio.h> 61 #include <string.h> 62 63 #include "interface.h" 64 #include "addrtoname.h" 65 #include "extract.h" 66 67 #include "ip.h" 68 #ifdef INET6 69 #include "ip6.h" 70 #endif 71 72 #include "rpc_auth.h" 73 #include "rpc_msg.h" 74 #include "pmap_prot.h" 75 76 static struct tok proc2str[] = { 77 { SUNRPC_PMAPPROC_NULL, "null" }, 78 { SUNRPC_PMAPPROC_SET, "set" }, 79 { SUNRPC_PMAPPROC_UNSET, "unset" }, 80 { SUNRPC_PMAPPROC_GETPORT, "getport" }, 81 { SUNRPC_PMAPPROC_DUMP, "dump" }, 82 { SUNRPC_PMAPPROC_CALLIT, "call" }, 83 { 0, NULL } 84 }; 85 86 /* Forwards */ 87 static char *progstr(u_int32_t); 88 89 void 90 sunrpcrequest_print(register const u_char *bp, register u_int length, 91 register const u_char *bp2) 92 { 93 register const struct sunrpc_msg *rp; 94 register const struct ip *ip; 95 #ifdef INET6 96 register const struct ip6_hdr *ip6; 97 #endif 98 u_int32_t x; 99 char srcid[20], dstid[20]; /*fits 32bit*/ 100 101 rp = (struct sunrpc_msg *)bp; 102 103 if (!nflag) { 104 snprintf(srcid, sizeof(srcid), "0x%x", 105 EXTRACT_32BITS(&rp->rm_xid)); 106 strlcpy(dstid, "sunrpc", sizeof(dstid)); 107 } else { 108 snprintf(srcid, sizeof(srcid), "0x%x", 109 EXTRACT_32BITS(&rp->rm_xid)); 110 snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT); 111 } 112 113 switch (IP_V((struct ip *)bp2)) { 114 case 4: 115 ip = (struct ip *)bp2; 116 printf("%s.%s > %s.%s: %d", 117 ipaddr_string(&ip->ip_src), srcid, 118 ipaddr_string(&ip->ip_dst), dstid, length); 119 break; 120 #ifdef INET6 121 case 6: 122 ip6 = (struct ip6_hdr *)bp2; 123 printf("%s.%s > %s.%s: %d", 124 ip6addr_string(&ip6->ip6_src), srcid, 125 ip6addr_string(&ip6->ip6_dst), dstid, length); 126 break; 127 #endif 128 default: 129 printf("%s.%s > %s.%s: %d", "?", srcid, "?", dstid, length); 130 break; 131 } 132 133 printf(" %s", tok2str(proc2str, " proc #%u", 134 EXTRACT_32BITS(&rp->rm_call.cb_proc))); 135 x = EXTRACT_32BITS(&rp->rm_call.cb_rpcvers); 136 if (x != 2) 137 printf(" [rpcver %u]", x); 138 139 switch (EXTRACT_32BITS(&rp->rm_call.cb_proc)) { 140 141 case SUNRPC_PMAPPROC_SET: 142 case SUNRPC_PMAPPROC_UNSET: 143 case SUNRPC_PMAPPROC_GETPORT: 144 case SUNRPC_PMAPPROC_CALLIT: 145 x = EXTRACT_32BITS(&rp->rm_call.cb_prog); 146 if (!nflag) 147 printf(" %s", progstr(x)); 148 else 149 printf(" %u", x); 150 printf(".%u", EXTRACT_32BITS(&rp->rm_call.cb_vers)); 151 break; 152 } 153 } 154 155 static char * 156 progstr(prog) 157 u_int32_t prog; 158 { 159 #ifdef HAVE_GETRPCBYNUMBER 160 register struct rpcent *rp; 161 #endif 162 static char buf[32]; 163 static u_int32_t lastprog = 0; 164 165 if (lastprog != 0 && prog == lastprog) 166 return (buf); 167 #ifdef HAVE_GETRPCBYNUMBER 168 rp = getrpcbynumber(prog); 169 if (rp == NULL) 170 #endif 171 (void) snprintf(buf, sizeof(buf), "#%u", prog); 172 #ifdef HAVE_GETRPCBYNUMBER 173 else 174 strlcpy(buf, rp->r_name, sizeof(buf)); 175 #endif 176 return (buf); 177 } 178