xref: /onnv-gate/usr/src/lib/libfsmgt/common/nfs_nfssec.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <errno.h>
30*0Sstevel@tonic-gate #include <sys/types.h>
31*0Sstevel@tonic-gate #include <nfs/nfs_sec.h>
32*0Sstevel@tonic-gate #include <strings.h>
33*0Sstevel@tonic-gate #include "libfsmgt.h"
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate /*
36*0Sstevel@tonic-gate  * Public methods
37*0Sstevel@tonic-gate  */
38*0Sstevel@tonic-gate 
39*0Sstevel@tonic-gate /*
40*0Sstevel@tonic-gate  * Method: nfssec_free_secmode_list
41*0Sstevel@tonic-gate  *
42*0Sstevel@tonic-gate  * Description: Frees the space allocated for the security mode list array.
43*0Sstevel@tonic-gate  *
44*0Sstevel@tonic-gate  * Parameters:
45*0Sstevel@tonic-gate  *	- char **seclist - the array to be freed.
46*0Sstevel@tonic-gate  *	- int num_elements - the number of elements in the array.
47*0Sstevel@tonic-gate  *
48*0Sstevel@tonic-gate  * Returns:
49*0Sstevel@tonic-gate  *	- Nothing
50*0Sstevel@tonic-gate  */
51*0Sstevel@tonic-gate void
nfssec_free_secmode_list(char ** seclist,int num_elements)52*0Sstevel@tonic-gate nfssec_free_secmode_list(char **seclist, int num_elements)
53*0Sstevel@tonic-gate {
54*0Sstevel@tonic-gate 	fileutil_free_string_array(seclist, num_elements);
55*0Sstevel@tonic-gate } /* nfssec_free_secmode_list */
56*0Sstevel@tonic-gate 
57*0Sstevel@tonic-gate /*
58*0Sstevel@tonic-gate  * Method: nfssec_get_default_secmode
59*0Sstevel@tonic-gate  *
60*0Sstevel@tonic-gate  * Description: Retrieves the default security mode for NFS.
61*0Sstevel@tonic-gate  *
62*0Sstevel@tonic-gate  * Parameters:
63*0Sstevel@tonic-gate  *	- int *errp - the error indicator.  This will be set to a non-zero
64*0Sstevel@tonic-gate  *	value upon error.
65*0Sstevel@tonic-gate  *
66*0Sstevel@tonic-gate  * Returns:
67*0Sstevel@tonic-gate  *	- char * - the NFS security mode name.
68*0Sstevel@tonic-gate  *	- NULL if an error occurred.
69*0Sstevel@tonic-gate  *
70*0Sstevel@tonic-gate  * Note: Caller must free the space allocated for the return value.
71*0Sstevel@tonic-gate  */
72*0Sstevel@tonic-gate char *
nfssec_get_default_secmode(int * errp)73*0Sstevel@tonic-gate nfssec_get_default_secmode(int *errp)
74*0Sstevel@tonic-gate {
75*0Sstevel@tonic-gate 	seconfig_t	secp, defsecp;
76*0Sstevel@tonic-gate 	char		*ret_val;
77*0Sstevel@tonic-gate 	int		err = 0;
78*0Sstevel@tonic-gate 
79*0Sstevel@tonic-gate 	*errp = 0;
80*0Sstevel@tonic-gate 	err = nfs_getseconfig_default(&secp);
81*0Sstevel@tonic-gate 	if (err != 0) {
82*0Sstevel@tonic-gate 		*errp = err;
83*0Sstevel@tonic-gate 		return (NULL);
84*0Sstevel@tonic-gate 	}
85*0Sstevel@tonic-gate 
86*0Sstevel@tonic-gate 	err = nfs_getseconfig_bynumber(secp.sc_nfsnum, &defsecp);
87*0Sstevel@tonic-gate 	if (err != 0) {
88*0Sstevel@tonic-gate 		*errp = err;
89*0Sstevel@tonic-gate 		return (NULL);
90*0Sstevel@tonic-gate 	}
91*0Sstevel@tonic-gate 
92*0Sstevel@tonic-gate 	ret_val = strdup(defsecp.sc_name);
93*0Sstevel@tonic-gate 	if (ret_val == NULL) {
94*0Sstevel@tonic-gate 		*errp = ENOMEM;
95*0Sstevel@tonic-gate 		return (NULL);
96*0Sstevel@tonic-gate 	}
97*0Sstevel@tonic-gate 
98*0Sstevel@tonic-gate 	return (ret_val);
99*0Sstevel@tonic-gate } /* nfssec_get_default_secmode */
100*0Sstevel@tonic-gate 
101*0Sstevel@tonic-gate /*
102*0Sstevel@tonic-gate  * Method: nfssec_get_nfs_secmode_list
103*0Sstevel@tonic-gate  *
104*0Sstevel@tonic-gate  * Description: Retrieves a list of the supported NFS security modes from
105*0Sstevel@tonic-gate  * /etc/nfssec.conf.
106*0Sstevel@tonic-gate  *
107*0Sstevel@tonic-gate  * Parameters:
108*0Sstevel@tonic-gate  *	- int *num_elements - integer pointer used to keep track of the number
109*0Sstevel@tonic-gate  *	of elements in the array.
110*0Sstevel@tonic-gate  *	- int *errp - the error indicator.  This will be set to a non-zero
111*0Sstevel@tonic-gate  *	value upon error.
112*0Sstevel@tonic-gate  *
113*0Sstevel@tonic-gate  * Returns:
114*0Sstevel@tonic-gate  *	- char ** - The array containing the supported security mode names as
115*0Sstevel@tonic-gate  *	elements.
116*0Sstevel@tonic-gate  *	- NULL if an error occurred.
117*0Sstevel@tonic-gate  *
118*0Sstevel@tonic-gate  * Note: The space allocated for the return array must be freed by the caller
119*0Sstevel@tonic-gate  * using nfssec_free_secmode_list.
120*0Sstevel@tonic-gate  */
121*0Sstevel@tonic-gate char **
nfssec_get_nfs_secmode_list(int * num_elements,int * errp)122*0Sstevel@tonic-gate nfssec_get_nfs_secmode_list(int *num_elements, int *errp)
123*0Sstevel@tonic-gate {
124*0Sstevel@tonic-gate 	FILE	*fp;
125*0Sstevel@tonic-gate 	char	**seclist = NULL;
126*0Sstevel@tonic-gate 	int	err = 0;
127*0Sstevel@tonic-gate 
128*0Sstevel@tonic-gate 	*errp = 0;
129*0Sstevel@tonic-gate 	if ((fp = fopen(NFSSEC_CONF, "r")) == NULL) {
130*0Sstevel@tonic-gate 		/*
131*0Sstevel@tonic-gate 		 * The opening of nfssec.conf failed.
132*0Sstevel@tonic-gate 		 */
133*0Sstevel@tonic-gate 		*errp = errno;
134*0Sstevel@tonic-gate 		return (NULL);
135*0Sstevel@tonic-gate 	}
136*0Sstevel@tonic-gate 
137*0Sstevel@tonic-gate 	seclist = fileutil_get_first_column_data(fp, num_elements, &err);
138*0Sstevel@tonic-gate 	(void) fclose(fp);
139*0Sstevel@tonic-gate 	if (seclist == NULL) {
140*0Sstevel@tonic-gate 		*errp = err;
141*0Sstevel@tonic-gate 		return (NULL);
142*0Sstevel@tonic-gate 	}
143*0Sstevel@tonic-gate 
144*0Sstevel@tonic-gate 	return (seclist);
145*0Sstevel@tonic-gate } /* nfssec_get_nfs_secmode_list */
146