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 /* \summary: Sun Remote Procedure Call printer */
23
24 #ifdef HAVE_CONFIG_H
25 #include "config.h"
26 #endif
27
28 /*
29 * At least on HP-UX:
30 *
31 * 1) getrpcbynumber() is declared in <netdb.h>, not any of the RPC
32 * header files
33 *
34 * and
35 *
36 * 2) if _XOPEN_SOURCE_EXTENDED is defined, <netdb.h> doesn't declare
37 * it
38 *
39 * so we undefine it.
40 */
41 #undef _XOPEN_SOURCE_EXTENDED
42
43 #include <netdissect-stdinc.h>
44
45 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
46 #include <rpc/rpc.h>
47 #ifdef HAVE_RPC_RPCENT_H
48 #include <rpc/rpcent.h>
49 #endif /* HAVE_RPC_RPCENT_H */
50 #endif /* defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H) */
51
52 #include <stdio.h>
53 #include <string.h>
54
55 #include "netdissect.h"
56 #include "addrtoname.h"
57 #include "extract.h"
58
59 #include "ip.h"
60 #include "ip6.h"
61
62 #include "rpc_auth.h"
63 #include "rpc_msg.h"
64
65 /*
66 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
67 * unrestricted use provided that this legend is included on all tape
68 * media and as a part of the software program in whole or part. Users
69 * may copy or modify Sun RPC without charge, but are not authorized
70 * to license or distribute it to anyone else except as part of a product or
71 * program developed by the user.
72 *
73 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
74 * WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
75 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
76 *
77 * Sun RPC is provided with no support and without any obligation on the
78 * part of Sun Microsystems, Inc. to assist in its use, correction,
79 * modification or enhancement.
80 *
81 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
82 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
83 * OR ANY PART THEREOF.
84 *
85 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
86 * or profits or other special, indirect and consequential damages, even if
87 * Sun has been advised of the possibility of such damages.
88 *
89 * Sun Microsystems, Inc.
90 * 2550 Garcia Avenue
91 * Mountain View, California 94043
92 *
93 * from: @(#)pmap_prot.h 1.14 88/02/08 SMI
94 * from: @(#)pmap_prot.h 2.1 88/07/29 4.0 RPCSRC
95 * $FreeBSD: src/include/rpc/pmap_prot.h,v 1.9.2.1 1999/08/29 14:39:05 peter Exp $
96 */
97
98 /*
99 * pmap_prot.h
100 * Protocol for the local binder service, or pmap.
101 *
102 * Copyright (C) 1984, Sun Microsystems, Inc.
103 *
104 * The following procedures are supported by the protocol:
105 *
106 * PMAPPROC_NULL() returns ()
107 * takes nothing, returns nothing
108 *
109 * PMAPPROC_SET(struct pmap) returns (bool_t)
110 * TRUE is success, FALSE is failure. Registers the tuple
111 * [prog, vers, prot, port].
112 *
113 * PMAPPROC_UNSET(struct pmap) returns (bool_t)
114 * TRUE is success, FALSE is failure. Un-registers pair
115 * [prog, vers]. prot and port are ignored.
116 *
117 * PMAPPROC_GETPORT(struct pmap) returns (long unsigned).
118 * 0 is failure. Otherwise returns the port number where the pair
119 * [prog, vers] is registered. It may lie!
120 *
121 * PMAPPROC_DUMP() RETURNS (struct pmaplist *)
122 *
123 * PMAPPROC_CALLIT(unsigned, unsigned, unsigned, string<>)
124 * RETURNS (port, string<>);
125 * usage: encapsulatedresults = PMAPPROC_CALLIT(prog, vers, proc, encapsulatedargs);
126 * Calls the procedure on the local machine. If it is not registered,
127 * this procedure is quite; ie it does not return error information!!!
128 * This procedure only is supported on rpc/udp and calls via
129 * rpc/udp. This routine only passes null authentication parameters.
130 * This file has no interface to xdr routines for PMAPPROC_CALLIT.
131 *
132 * The service supports remote procedure calls on udp/ip or tcp/ip socket 111.
133 */
134
135 #define SUNRPC_PMAPPORT ((uint16_t)111)
136 #define SUNRPC_PMAPPROG ((uint32_t)100000)
137 #define SUNRPC_PMAPVERS ((uint32_t)2)
138 #define SUNRPC_PMAPVERS_PROTO ((uint32_t)2)
139 #define SUNRPC_PMAPVERS_ORIG ((uint32_t)1)
140 #define SUNRPC_PMAPPROC_NULL ((uint32_t)0)
141 #define SUNRPC_PMAPPROC_SET ((uint32_t)1)
142 #define SUNRPC_PMAPPROC_UNSET ((uint32_t)2)
143 #define SUNRPC_PMAPPROC_GETPORT ((uint32_t)3)
144 #define SUNRPC_PMAPPROC_DUMP ((uint32_t)4)
145 #define SUNRPC_PMAPPROC_CALLIT ((uint32_t)5)
146
147 struct sunrpc_pmap {
148 uint32_t pm_prog;
149 uint32_t pm_vers;
150 uint32_t pm_prot;
151 uint32_t pm_port;
152 };
153
154 static const struct tok proc2str[] = {
155 { SUNRPC_PMAPPROC_NULL, "null" },
156 { SUNRPC_PMAPPROC_SET, "set" },
157 { SUNRPC_PMAPPROC_UNSET, "unset" },
158 { SUNRPC_PMAPPROC_GETPORT, "getport" },
159 { SUNRPC_PMAPPROC_DUMP, "dump" },
160 { SUNRPC_PMAPPROC_CALLIT, "call" },
161 { 0, NULL }
162 };
163
164 /* Forwards */
165 static char *progstr(uint32_t);
166
167 void
sunrpcrequest_print(netdissect_options * ndo,register const u_char * bp,register u_int length,register const u_char * bp2)168 sunrpcrequest_print(netdissect_options *ndo, register const u_char *bp,
169 register u_int length, register const u_char *bp2)
170 {
171 register const struct sunrpc_msg *rp;
172 register const struct ip *ip;
173 register const struct ip6_hdr *ip6;
174 uint32_t x;
175 char srcid[20], dstid[20]; /*fits 32bit*/
176
177 rp = (const struct sunrpc_msg *)bp;
178
179 if (!ndo->ndo_nflag) {
180 snprintf(srcid, sizeof(srcid), "0x%x",
181 EXTRACT_32BITS(&rp->rm_xid));
182 strlcpy(dstid, "sunrpc", sizeof(dstid));
183 } else {
184 snprintf(srcid, sizeof(srcid), "0x%x",
185 EXTRACT_32BITS(&rp->rm_xid));
186 snprintf(dstid, sizeof(dstid), "0x%x", SUNRPC_PMAPPORT);
187 }
188
189 switch (IP_V((const struct ip *)bp2)) {
190 case 4:
191 ip = (const struct ip *)bp2;
192 ND_PRINT((ndo, "%s.%s > %s.%s: %d",
193 ipaddr_string(ndo, &ip->ip_src), srcid,
194 ipaddr_string(ndo, &ip->ip_dst), dstid, length));
195 break;
196 case 6:
197 ip6 = (const struct ip6_hdr *)bp2;
198 ND_PRINT((ndo, "%s.%s > %s.%s: %d",
199 ip6addr_string(ndo, &ip6->ip6_src), srcid,
200 ip6addr_string(ndo, &ip6->ip6_dst), dstid, length));
201 break;
202 default:
203 ND_PRINT((ndo, "%s.%s > %s.%s: %d", "?", srcid, "?", dstid, length));
204 break;
205 }
206
207 ND_PRINT((ndo, " %s", tok2str(proc2str, " proc #%u",
208 EXTRACT_32BITS(&rp->rm_call.cb_proc))));
209 x = EXTRACT_32BITS(&rp->rm_call.cb_rpcvers);
210 if (x != 2)
211 ND_PRINT((ndo, " [rpcver %u]", x));
212
213 switch (EXTRACT_32BITS(&rp->rm_call.cb_proc)) {
214
215 case SUNRPC_PMAPPROC_SET:
216 case SUNRPC_PMAPPROC_UNSET:
217 case SUNRPC_PMAPPROC_GETPORT:
218 case SUNRPC_PMAPPROC_CALLIT:
219 x = EXTRACT_32BITS(&rp->rm_call.cb_prog);
220 if (!ndo->ndo_nflag)
221 ND_PRINT((ndo, " %s", progstr(x)));
222 else
223 ND_PRINT((ndo, " %u", x));
224 ND_PRINT((ndo, ".%u", EXTRACT_32BITS(&rp->rm_call.cb_vers)));
225 break;
226 }
227 }
228
229 static char *
progstr(uint32_t prog)230 progstr(uint32_t prog)
231 {
232 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
233 register struct rpcent *rp;
234 #endif
235 static char buf[32];
236 static uint32_t lastprog = 0;
237
238 if (lastprog != 0 && prog == lastprog)
239 return (buf);
240 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
241 rp = getrpcbynumber(prog);
242 if (rp == NULL)
243 #endif
244 (void) snprintf(buf, sizeof(buf), "#%u", prog);
245 #if defined(HAVE_GETRPCBYNUMBER) && defined(HAVE_RPC_RPC_H)
246 else
247 strlcpy(buf, rp->r_name, sizeof(buf));
248 #endif
249 return (buf);
250 }
251