| 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 1.46.2.1 2005/04/27 21:44:06 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 | } |