1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #include <string.h>
27 #include <sys/types.h>
28 #include <sys/tiuser.h>
29 #include <rpc/types.h>
30 #include <rpc/xdr.h>
31 #include <rpc/auth.h>
32 #include <rpc/clnt.h>
33 #include <rpc/rpc_msg.h>
34 #include "snoop.h"
35 
36 #define	RPC_TRANSIENT_START	0x40000000
37 #define	RPC_TRANSIENT_END	0x5fffffff
38 
39 int rpcsec_gss_control_proc(int type, int flags, int xid);
40 
41 int rpcsec_gss_pre_proto(int type, int flags, int xid,
42 				int prog, int vers, int proc);
43 
44 void rpcsec_gss_post_proto(int flags, int xid);
45 
46 void
protoprint(flags,type,xid,prog,vers,proc,data,len)47 protoprint(flags, type, xid, prog, vers, proc, data, len)
48 	ulong_t xid;
49 	int flags, type, prog, vers, proc;
50 	char *data;
51 	int len;
52 {
53 	char *name;
54 	void (*interpreter)(int, int, int, int, int, char *, int);
55 
56 	switch (prog) {
57 	case 100000:	interpreter = interpret_pmap;		break;
58 	case 100001:	interpreter = interpret_rstat;		break;
59 	case 100003:	interpreter = interpret_nfs;		break;
60 	case 100004:	interpreter = interpret_nis;		break;
61 	case 100005:	interpreter = interpret_mount;		break;
62 	case 100007:	interpreter = interpret_nisbind;	break;
63 	case 100011:	interpreter = interpret_rquota;		break;
64 	case 100021:	interpreter = interpret_nlm;		break;
65 	case 100026:	interpreter = interpret_bparam;		break;
66 	case 100227:	interpreter = interpret_nfs_acl;	break;
67 	case 150006:	interpreter = interpret_solarnet_fw;	break;
68 	default:	interpreter = NULL;
69 	}
70 
71 	/*
72 	 * if rpc in transient range and proc is 0 or 1, then
73 	 * guess that it is the nfsv4 callback protocol
74 	 */
75 	if (prog >= RPC_TRANSIENT_START && prog <= RPC_TRANSIENT_END &&
76 	    (proc == 0 || proc == 1))
77 		interpreter = interpret_nfs4_cb;
78 
79 	/*
80 	 *  If the RPC header indicates it's using the RPCSEC_GSS_*
81 	 *  control procedure, print it.
82 	 */
83 	if (rpcsec_gss_control_proc(type, flags, xid)) {
84 			return;
85 	}
86 
87 	if (interpreter == NULL) {
88 		if (!(flags & F_SUM))
89 			return;
90 		name = nameof_prog(prog);
91 		if (*name == '?' || strcmp(name, "transient") == 0)
92 			return;
93 		(void) sprintf(get_sum_line(), "%s %c",
94 			name,
95 			type == CALL ? 'C' : 'R');
96 	} else {
97 		/* Pre-processing based on different RPCSEC_GSS services. */
98 		if (rpcsec_gss_pre_proto(type, flags, xid, prog, vers, proc))
99 			return;
100 
101 		(*interpreter) (flags, type, xid, vers, proc, data, len);
102 
103 		/* Post-processing based on different RPCSEC_GSS services. */
104 		rpcsec_gss_post_proto(flags, xid);
105 	}
106 }
107