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 #ifndef lint 23 static const char rcsid[] _U_ = 24 "@(#) $Header: /tcpdump/master/tcpdump/print-sunrpc.c,v 1.47 2005-04-27 21:43:48 guy Exp $ (LBL)"; 25 #endif 26 27 #ifdef HAVE_CONFIG_H 28 #include "config.h" 29 #endif 30 31 #include <tcpdump-stdinc.h> 32 33 #ifdef HAVE_GETRPCBYNUMBER 34 #include <rpc/rpc.h> 35 #ifdef HAVE_RPC_RPCENT_H 36 #include <rpc/rpcent.h> 37 #endif /* HAVE_RPC_RPCENT_H */ 38 #endif /* HAVE_GETRPCBYNUMBER */ 39 40 #include <stdio.h> 41 #include <string.h> 42 43 #include "interface.h" 44 #include "addrtoname.h" 45 #include "extract.h" 46 47 #include "ip.h" 48 #ifdef INET6 49 #include "ip6.h" 50 #endif 51 52 #include "rpc_auth.h" 53 #include "rpc_msg.h" 54 #include "pmap_prot.h" 55 56 static struct tok proc2str[] = { 57 { SUNRPC_PMAPPROC_NULL, "null" }, 58 { SUNRPC_PMAPPROC_SET, "set" }, 59 { SUNRPC_PMAPPROC_UNSET, "unset" }, 60 { SUNRPC_PMAPPROC_GETPORT, "getport" }, 61 { SUNRPC_PMAPPROC_DUMP, "dump" }, 62 { SUNRPC_PMAPPROC_CALLIT, "call" }, 63 { 0, NULL } 64 }; 65 66 /* Forwards */ 67 static char *progstr(u_int32_t); 68 69 void 70 sunrpcrequest_print(register const u_char *bp, register u_int length, 71 register const u_char *bp2) 72 { 73 register const struct sunrpc_msg *rp; 74 register const struct ip *ip; 75 #ifdef INET6 76 register const struct ip6_hdr *ip6; 77 #endif 78 u_int32_t x; 79 char srcid[20], dstid[20]; /*fits 32bit*/ 80 81 rp = (struct sunrpc_msg *)bp; 82 83 if (!nflag) { 84 snprintf(srcid, sizeof(srcid), "0x%x", 85 EXTRACT_32BITS(&rp->rm_xid)); 86 strlcpy(dstid, "sunrpc", sizeof(dstid)); 87 } else { 88 snprintf(srcid, sizeof(srcid), "0x%x", 89 EXTRACT_32BITS(&rp->rm_xid)); 90 snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT); 91 } 92 93 switch (IP_V((struct ip *)bp2)) { 94 case 4: 95 ip = (struct ip *)bp2; 96 printf("%s.%s > %s.%s: %d", 97 ipaddr_string(&ip->ip_src), srcid, 98 ipaddr_string(&ip->ip_dst), dstid, length); 99 break; 100 #ifdef INET6 101 case 6: 102 ip6 = (struct ip6_hdr *)bp2; 103 printf("%s.%s > %s.%s: %d", 104 ip6addr_string(&ip6->ip6_src), srcid, 105 ip6addr_string(&ip6->ip6_dst), dstid, length); 106 break; 107 #endif 108 default: 109 printf("%s.%s > %s.%s: %d", "?", srcid, "?", dstid, length); 110 break; 111 } 112 113 printf(" %s", tok2str(proc2str, " proc #%u", 114 EXTRACT_32BITS(&rp->rm_call.cb_proc))); 115 x = EXTRACT_32BITS(&rp->rm_call.cb_rpcvers); 116 if (x != 2) 117 printf(" [rpcver %u]", x); 118 119 switch (EXTRACT_32BITS(&rp->rm_call.cb_proc)) { 120 121 case SUNRPC_PMAPPROC_SET: 122 case SUNRPC_PMAPPROC_UNSET: 123 case SUNRPC_PMAPPROC_GETPORT: 124 case SUNRPC_PMAPPROC_CALLIT: 125 x = EXTRACT_32BITS(&rp->rm_call.cb_prog); 126 if (!nflag) 127 printf(" %s", progstr(x)); 128 else 129 printf(" %u", x); 130 printf(".%u", EXTRACT_32BITS(&rp->rm_call.cb_vers)); 131 break; 132 } 133 } 134 135 static char * 136 progstr(prog) 137 u_int32_t prog; 138 { 139 #ifdef HAVE_GETRPCBYNUMBER 140 register struct rpcent *rp; 141 #endif 142 static char buf[32]; 143 static u_int32_t lastprog = 0; 144 145 if (lastprog != 0 && prog == lastprog) 146 return (buf); 147 #ifdef HAVE_GETRPCBYNUMBER 148 rp = getrpcbynumber(prog); 149 if (rp == NULL) 150 #endif 151 (void) snprintf(buf, sizeof(buf), "#%u", prog); 152 #ifdef HAVE_GETRPCBYNUMBER 153 else 154 strlcpy(buf, rp->r_name, sizeof(buf)); 155 #endif 156 return (buf); 157 } 158