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