1 /*
2 * Copyright (c) 1994-2008 Carnegie Mellon University. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
14 * distribution.
15 *
16 * 3. The name "Carnegie Mellon University" must not be used to
17 * endorse or promote products derived from this software without
18 * prior written permission. For permission or any legal
19 * details, please contact
20 * Carnegie Mellon University
21 * Center for Technology Transfer and Enterprise Creation
22 * 4615 Forbes Avenue
23 * Suite 302
24 * Pittsburgh, PA 15213
25 * (412) 268-7393, fax: (412) 268-7395
26 * innovation@andrew.cmu.edu
27 *
28 * 4. Redistributions of any form whatsoever must retain the following
29 * acknowledgment:
30 * "This product includes software developed by Computing Services
31 * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
32 *
33 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
34 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
35 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
36 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
37 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
38 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
39 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
40 */
41
42 #include <config.h>
43 #include <stdlib.h>
44 #include <string.h>
45 #include <sysexits.h>
46
47 #include "auth.h"
48 #include "libcyr_cfg.h"
49 #include "xmalloc.h"
50
51 struct auth_mech *auth_mechs[] = {
52 &auth_unix,
53 &auth_pts,
54 #ifdef HAVE_KRB
55 &auth_krb,
56 #endif
57 #ifdef HAVE_GSSAPI_H
58 &auth_krb5,
59 #endif
60 NULL };
61
auth_fromname(void)62 static struct auth_mech *auth_fromname(void)
63 {
64 int i;
65 const char *name = libcyrus_config_getstring(CYRUSOPT_AUTH_MECH);
66 static struct auth_mech *auth = NULL;
67
68 if (auth)
69 return auth;
70
71 for (i = 0; auth_mechs[i]; i++) {
72 if (!strcmp(auth_mechs[i]->name, name)) {
73 auth = auth_mechs[i]; break;
74 }
75 }
76 if (!auth) {
77 char errbuf[1024];
78 snprintf(errbuf, sizeof(errbuf),
79 "Authorization mechanism %s not supported", name);
80 fatal(errbuf, EX_CONFIG);
81 }
82
83 return auth;
84 }
85
auth_memberof(const struct auth_state * auth_state,const char * identifier)86 EXPORTED int auth_memberof(const struct auth_state *auth_state, const char *identifier)
87 {
88 struct auth_mech *auth = auth_fromname();
89
90 return auth->memberof(auth_state, identifier);
91 }
92
auth_canonifyid(const char * identifier,size_t len)93 EXPORTED const char *auth_canonifyid(const char *identifier, size_t len)
94 {
95 struct auth_mech *auth = auth_fromname();
96
97 return auth->canonifyid(identifier, len);
98 }
99
auth_newstate(const char * identifier)100 EXPORTED struct auth_state *auth_newstate(const char *identifier)
101 {
102 struct auth_mech *auth = auth_fromname();
103
104 return auth->newstate(identifier);
105 }
106
auth_freestate(struct auth_state * auth_state)107 EXPORTED void auth_freestate(struct auth_state *auth_state)
108 {
109 struct auth_mech *auth = auth_fromname();
110
111 if (auth_state) auth->freestate(auth_state);
112 }
113
auth_groups(const struct auth_state * auth_state)114 EXPORTED strarray_t *auth_groups(const struct auth_state *auth_state)
115 {
116 struct auth_mech *auth = auth_fromname();
117
118 return auth->groups(auth_state);
119 }
120