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1 /*
2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * The contents of this file constitute Original Code as defined in and
7 * are subject to the Apple Public Source License Version 1.1 (the
8 * "License"). You may not use this file except in compliance with the
9 * License. Please obtain a copy of the License at
10 * http://www.apple.com/publicsource and read it before using this file.
11 *
12 * This Original Code and all software distributed under the License are
13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17 * License for the specific language governing rights and limitations
18 * under the License.
19 *
20 * @APPLE_LICENSE_HEADER_END@
21 */
22
23 #include <mach/mach.h>
24 #include <mach/mach_error.h>
25
26 #include <SystemConfiguration/SCD.h>
27 #include "config.h" /* MiG generated file */
28 #include "SCDPrivate.h"
29
30
31 SCDStatus
32 SCDGet(SCDSessionRef session, CFStringRef key, SCDHandleRef *handle)
33 {
34 SCDSessionPrivateRef sessionPrivate = (SCDSessionPrivateRef)session;
35 kern_return_t status;
36 CFDataRef xmlKey; /* key (XML serialized) */
37 xmlData_t myKeyRef; /* key (serialized) */
38 CFIndex myKeyLen;
39 xmlDataOut_t xmlDataRef; /* data (serialized) */
40 CFIndex xmlDataLen;
41 CFDataRef xmlData; /* data (XML serialized) */
42 CFPropertyListRef data; /* data (un-serialized) */
43 int newInstance;
44 SCDStatus scd_status;
45 CFStringRef xmlError;
46
47 SCDLog(LOG_DEBUG, CFSTR("SCDGet:"));
48 SCDLog(LOG_DEBUG, CFSTR(" key = %@"), key);
49
50 if (key == NULL) {
51 return SCD_INVALIDARGUMENT; /* no key specified */
52 }
53
54 if ((session == NULL) || (sessionPrivate->server == MACH_PORT_NULL)) {
55 return SCD_NOSESSION;
56 }
57
58 /* serialize the key */
59 xmlKey = CFPropertyListCreateXMLData(NULL, key);
60 myKeyRef = (xmlData_t)CFDataGetBytePtr(xmlKey);
61 myKeyLen = CFDataGetLength(xmlKey);
62
63 /* send the key & fetch the associated data from the server */
64 status = configget(sessionPrivate->server,
65 myKeyRef,
66 myKeyLen,
67 &xmlDataRef,
68 (int *)&xmlDataLen,
69 &newInstance,
70 (int *)&scd_status);
71
72 /* clean up */
73 CFRelease(xmlKey);
74
75 if (status != KERN_SUCCESS) {
76 if (status != MACH_SEND_INVALID_DEST)
77 SCDLog(LOG_DEBUG, CFSTR("configget(): %s"), mach_error_string(status));
78 (void) mach_port_destroy(mach_task_self(), sessionPrivate->server);
79 sessionPrivate->server = MACH_PORT_NULL;
80 return SCD_NOSERVER;
81 }
82
83 if (scd_status != SCD_OK) {
84 status = vm_deallocate(mach_task_self(), (vm_address_t)xmlDataRef, xmlDataLen);
85 if (status != KERN_SUCCESS) {
86 SCDLog(LOG_DEBUG, CFSTR("vm_deallocate(): %s"), mach_error_string(status));
87 /* non-fatal???, proceed */
88 }
89 *handle = NULL;
90 return scd_status;
91 }
92
93 /* un-serialize the data, return a handle associated with the key */
94 *handle = SCDHandleInit();
95 xmlData = CFDataCreate(NULL, xmlDataRef, xmlDataLen);
96 status = vm_deallocate(mach_task_self(), (vm_address_t)xmlDataRef, xmlDataLen);
97 if (status != KERN_SUCCESS) {
98 SCDLog(LOG_DEBUG, CFSTR("vm_deallocate(): %s"), mach_error_string(status));
99 /* non-fatal???, proceed */
100 }
101 data = CFPropertyListCreateFromXMLData(NULL,
102 xmlData,
103 kCFPropertyListImmutable,
104 &xmlError);
105 CFRelease(xmlData);
106 if (xmlError) {
107 SCDLog(LOG_DEBUG, CFSTR("CFPropertyListCreateFromXMLData() data: %s"), xmlError);
108 SCDHandleRelease(*handle);
109 return SCD_FAILED;
110 }
111 SCDHandleSetData(*handle, data);
112 CFRelease(data);
113
114 _SCDHandleSetInstance(*handle, newInstance);
115
116 SCDLog(LOG_DEBUG, CFSTR(" data = %@"), SCDHandleGetData(*handle));
117 SCDLog(LOG_DEBUG, CFSTR(" instance = %d"), SCDHandleGetInstance(*handle));
118
119 return scd_status;
120 }