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 * $FreeBSD$ 22 */ 23 24 #ifndef lint 25 static const char rcsid[] = 26 "@(#) $Header: /tcpdump/master/tcpdump/print-sunrpc.c,v 1.39 2000/10/07 05:53:13 itojun Exp $ (LBL)"; 27 #endif 28 29 #ifdef HAVE_CONFIG_H 30 #include "config.h" 31 #endif 32 33 #include <sys/param.h> 34 #include <sys/time.h> 35 #include <sys/socket.h> 36 37 struct mbuf; 38 struct rtentry; 39 40 #include <netinet/in.h> 41 42 #include <rpc/rpc.h> 43 #ifdef HAVE_RPC_RPCENT_H 44 #include <rpc/rpcent.h> 45 #endif 46 #include <rpc/pmap_prot.h> 47 48 #include <ctype.h> 49 #include <netdb.h> 50 #include <stdio.h> 51 #include <string.h> 52 53 #include "interface.h" 54 #include "addrtoname.h" 55 56 #include "ip.h" 57 #ifdef INET6 58 #include "ip6.h" 59 #endif 60 61 static struct tok proc2str[] = { 62 { PMAPPROC_NULL, "null" }, 63 { PMAPPROC_SET, "set" }, 64 { PMAPPROC_UNSET, "unset" }, 65 { PMAPPROC_GETPORT, "getport" }, 66 { PMAPPROC_DUMP, "dump" }, 67 { PMAPPROC_CALLIT, "call" }, 68 { 0, NULL } 69 }; 70 71 /* Forwards */ 72 static char *progstr(u_int32_t); 73 74 void 75 sunrpcrequest_print(register const u_char *bp, register u_int length, 76 register const u_char *bp2) 77 { 78 register const struct rpc_msg *rp; 79 register const struct ip *ip; 80 #ifdef INET6 81 register const struct ip6_hdr *ip6; 82 #endif 83 u_int32_t x; 84 char srcid[20], dstid[20]; /*fits 32bit*/ 85 86 rp = (struct rpc_msg *)bp; 87 88 if (!nflag) { 89 snprintf(srcid, sizeof(srcid), "0x%x", 90 (u_int32_t)ntohl(rp->rm_xid)); 91 strlcpy(dstid, "sunrpc", sizeof(dstid)); 92 } else { 93 snprintf(srcid, sizeof(srcid), "0x%x", 94 (u_int32_t)ntohl(rp->rm_xid)); 95 snprintf(dstid, sizeof(dstid), "0x%x", PMAPPORT); 96 } 97 98 switch (IP_V((struct ip *)bp2)) { 99 case 4: 100 ip = (struct ip *)bp2; 101 printf("%s.%s > %s.%s: %d", 102 ipaddr_string(&ip->ip_src), srcid, 103 ipaddr_string(&ip->ip_dst), dstid, length); 104 break; 105 #ifdef INET6 106 case 6: 107 ip6 = (struct ip6_hdr *)bp2; 108 printf("%s.%s > %s.%s: %d", 109 ip6addr_string(&ip6->ip6_src), srcid, 110 ip6addr_string(&ip6->ip6_dst), dstid, length); 111 break; 112 #endif 113 default: 114 printf("%s.%s > %s.%s: %d", "?", srcid, "?", dstid, length); 115 break; 116 } 117 118 printf(" %s", tok2str(proc2str, " proc #%u", 119 (u_int32_t)ntohl(rp->rm_call.cb_proc))); 120 x = ntohl(rp->rm_call.cb_rpcvers); 121 if (x != 2) 122 printf(" [rpcver %u]", x); 123 124 switch (ntohl(rp->rm_call.cb_proc)) { 125 126 case PMAPPROC_SET: 127 case PMAPPROC_UNSET: 128 case PMAPPROC_GETPORT: 129 case PMAPPROC_CALLIT: 130 x = ntohl(rp->rm_call.cb_prog); 131 if (!nflag) 132 printf(" %s", progstr(x)); 133 else 134 printf(" %u", x); 135 printf(".%u", (u_int32_t)ntohl(rp->rm_call.cb_vers)); 136 break; 137 } 138 } 139 140 static char * 141 progstr(prog) 142 u_int32_t prog; 143 { 144 register struct rpcent *rp; 145 static char buf[32]; 146 static int lastprog = 0; 147 148 if (lastprog != 0 && prog == lastprog) 149 return (buf); 150 rp = getrpcbynumber(prog); 151 if (rp == NULL) 152 (void) snprintf(buf, sizeof(buf), "#%u", prog); 153 else 154 strlcpy(buf, rp->r_name, sizeof(buf)); 155 return (buf); 156 } 157