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1 /*
2 * Copyright (c) 2000, 2001, 2004-2006, 2010 Apple Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24 /*
25 * Modification History
26 *
27 * June 1, 2001 Allan Nathanson <ajn@apple.com>
28 * - public API conversion
29 *
30 * November 9, 2000 Allan Nathanson <ajn@apple.com>
31 * - initial revision
32 */
33
34 #include <SystemConfiguration/SystemConfiguration.h>
35 #include <SystemConfiguration/SCPrivate.h>
36 #include "SCPreferencesInternal.h"
37 #include "SCHelper_client.h"
38
39
40 static Boolean
41 __SCPreferencesApplyChanges_helper(SCPreferencesRef prefs)
42 {
43 Boolean ok;
44 SCPreferencesPrivateRef prefsPrivate = (SCPreferencesPrivateRef)prefs;
45 uint32_t status = kSCStatusOK;
46
47 if (prefsPrivate->helper_port == MACH_PORT_NULL) {
48 // if no helper
49 goto fail;
50 }
51
52 // have the helper "apply" the prefs
53 // status = kSCStatusOK;
54 ok = _SCHelperExec(prefsPrivate->helper_port,
55 SCHELPER_MSG_PREFS_APPLY,
56 NULL,
57 &status,
58 NULL);
59 if (!ok) {
60 goto fail;
61 }
62
63 if (status != kSCStatusOK) {
64 goto error;
65 }
66
67 return TRUE;
68
69 fail :
70
71 // close helper
72 if (prefsPrivate->helper_port != MACH_PORT_NULL) {
73 _SCHelperClose(&prefsPrivate->helper_port);
74 }
75
76 status = kSCStatusAccessError;
77
78 error :
79
80 // return error
81 _SCErrorSet(status);
82 return FALSE;
83 }
84
85
86 Boolean
87 SCPreferencesApplyChanges(SCPreferencesRef prefs)
88 {
89 Boolean ok = FALSE;
90 SCPreferencesPrivateRef prefsPrivate = (SCPreferencesPrivateRef)prefs;
91 Boolean wasLocked;
92
93 if (prefs == NULL) {
94 /* sorry, you must provide a session */
95 _SCErrorSet(kSCStatusNoPrefsSession);
96 return FALSE;
97 }
98
99 /*
100 * Determine if the we have exclusive access to the preferences
101 * and acquire the lock if necessary.
102 */
103 wasLocked = prefsPrivate->locked;
104 if (!wasLocked) {
105 if (!SCPreferencesLock(prefs, TRUE)) {
106 SCLog(_sc_verbose, LOG_DEBUG, CFSTR("SCPreferencesApplyChanges SCPreferencesLock() failed"));
107 return FALSE;
108 }
109 }
110
111 if (prefsPrivate->authorizationData != NULL) {
112 ok = __SCPreferencesApplyChanges_helper(prefs);
113 goto done;
114 }
115
116 /* post notification */
117 if (prefsPrivate->session == NULL) {
118 ok = TRUE;
119 } else {
120 ok = SCDynamicStoreNotifyValue(prefsPrivate->session, prefsPrivate->sessionKeyApply);
121 if (!ok) {
122 SCLog(_sc_verbose, LOG_DEBUG, CFSTR("SCPreferencesApplyChanges SCDynamicStoreNotifyValue() failed"));
123 _SCErrorSet(kSCStatusFailed);
124 }
125 }
126
127 done :
128
129 if (!wasLocked) {
130 uint32_t status;
131
132 status = SCError(); // preserve status across unlock
133 (void) SCPreferencesUnlock(prefs);
134 _SCErrorSet(status);
135 }
136 return ok;
137 }