1 /* $OpenBSD: print-sunrpc.c,v 1.23 2023/09/06 05:54:07 jsg Exp $ */
2
3 /*
4 * Copyright (c) 1992, 1993, 1994, 1995, 1996
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that: (1) source code distributions
9 * retain the above copyright notice and this paragraph in its entirety, (2)
10 * distributions including binary code include the above copyright notice and
11 * this paragraph in its entirety in the documentation or other materials
12 * provided with the distribution, and (3) all advertising materials mentioning
13 * features or use of this software display the following acknowledgement:
14 * ``This product includes software developed by the University of California,
15 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
16 * the University nor the names of its contributors may be used to endorse
17 * or promote products derived from this software without specific prior
18 * written permission.
19 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
20 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22 */
23
24 #include <sys/time.h>
25 #include <sys/socket.h>
26
27 #include <net/if.h>
28
29 #include <netinet/in.h>
30 #include <netinet/if_ether.h>
31 #include <netinet/ip.h>
32 #include <netinet/ip_var.h>
33
34 #include <rpc/rpc.h>
35 #ifdef HAVE_RPC_RPCENT_H
36 #include <rpc/rpcent.h>
37 #endif
38 #include <rpc/pmap_prot.h>
39
40 #include <ctype.h>
41 #include <netdb.h>
42 #include <stdio.h>
43 #include <string.h>
44
45 #include "interface.h"
46 #include "addrtoname.h"
47 #include "privsep.h"
48
49 static struct tok proc2str[] = {
50 { PMAPPROC_NULL, "null" },
51 { PMAPPROC_SET, "set" },
52 { PMAPPROC_UNSET, "unset" },
53 { PMAPPROC_GETPORT, "getport" },
54 { PMAPPROC_DUMP, "dump" },
55 { PMAPPROC_CALLIT, "call" },
56 { 0, NULL }
57 };
58
59 /* Forwards */
60 static char *progstr(u_int32_t);
61
62 void
sunrpcrequest_print(const u_char * bp,u_int length,const u_char * bp2)63 sunrpcrequest_print(const u_char *bp, u_int length, const u_char *bp2)
64 {
65 const struct rpc_msg *rp;
66 u_int32_t x;
67
68 rp = (struct rpc_msg *)bp;
69
70 printf("xid 0x%x %d", (u_int32_t)ntohl(rp->rm_xid), length);
71 printf(" %s", tok2str(proc2str, " proc #%u",
72 (u_int32_t)ntohl(rp->rm_call.cb_proc)));
73 x = ntohl(rp->rm_call.cb_rpcvers);
74 if (x != 2)
75 printf(" [rpcver %u]", x);
76
77 switch (ntohl(rp->rm_call.cb_proc)) {
78
79 case PMAPPROC_SET:
80 case PMAPPROC_UNSET:
81 case PMAPPROC_GETPORT:
82 case PMAPPROC_CALLIT:
83 x = ntohl(rp->rm_call.cb_prog);
84 if (!nflag)
85 printf(" %s", progstr(x));
86 else
87 printf(" %u", x);
88 printf(".%u", (u_int32_t)ntohl(rp->rm_call.cb_vers));
89 break;
90 }
91 }
92
93 static char *
progstr(u_int32_t prog)94 progstr(u_int32_t prog)
95 {
96 char progname[32];
97 static char buf[32];
98 static int lastprog = 0;
99
100 if (lastprog != 0 && prog == lastprog)
101 return (buf);
102 lastprog = prog;
103 if (priv_getrpcbynumber(prog, progname, sizeof(progname)) == 0)
104 snprintf(buf, sizeof(buf), "#%u", prog);
105 else
106 strlcpy(buf, progname, sizeof(buf));
107 return (buf);
108 }
109