configd.tproj/_snapshot.c

   1 /*
   2  * Copyright (c) 2000-2002 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 /*
  24  * Modification History
  25  *
  26  * June 1, 2001                 Allan Nathanson <ajn@apple.com>
  27  * - public API conversion
  28  *
  29  * April 14, 2000               Allan Nathanson <ajn@apple.com>
  30  * - initial revision
  31  */
  32
  33 #include <fcntl.h>
  34 #include <paths.h>
  35 #include <unistd.h>
  36
  37 #include "configd.h"
  38 #include "configd_server.h"
  39 #include "session.h"
  40
  41
  42 #define SNAPSHOT_PATH_STORE     _PATH_VARTMP "configd-store.xml"
  43 #define SNAPSHOT_PATH_SESSION   _PATH_VARTMP "configd-session.xml"
  44
  45
  46 int
  47 __SCDynamicStoreSnapshot(SCDynamicStoreRef store)
  48 {
  49         int                             fd;
  50         serverSessionRef                mySession;
  51         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)store;
  52         CFDataRef                       xmlData;
  53
  54         SCLog(_configd_verbose, LOG_DEBUG, CFSTR("__SCDynamicStoreSnapshot:"));
  55
  56         /* check credentials */
  57
  58         mySession = getSession(storePrivate->server);
  59         if (mySession->callerEUID != 0) {
  60                 return kSCStatusAccessError;
  61         }
  62
  63         /* Save a snapshot of the "store" data */
  64
  65         (void) unlink(SNAPSHOT_PATH_STORE);
  66         fd = open(SNAPSHOT_PATH_STORE, O_WRONLY|O_CREAT|O_TRUNC, 0644);
  67         if (fd < 0) {
  68                 return kSCStatusFailed;
  69         }
  70
  71         xmlData = CFPropertyListCreateXMLData(NULL, storeData);
  72         if (!xmlData) {
  73                 SCLog(TRUE, LOG_ERR, CFSTR("CFPropertyListCreateXMLData() failed"));
  74                 close(fd);
  75                 return kSCStatusFailed;
  76         }
  77         (void) write(fd, CFDataGetBytePtr(xmlData), CFDataGetLength(xmlData));
  78         (void) close(fd);
  79         CFRelease(xmlData);
  80
  81         /* Save a snapshot of the "session" data */
  82
  83         (void) unlink(SNAPSHOT_PATH_SESSION);
  84         fd = open(SNAPSHOT_PATH_SESSION, O_WRONLY|O_CREAT|O_TRUNC, 0644);
  85         if (fd < 0) {
  86                 return kSCStatusFailed;
  87         }
  88
  89         /* Save a snapshot of the "session" data */
  90
  91         xmlData = CFPropertyListCreateXMLData(NULL, sessionData);
  92         if (!xmlData) {
  93                 SCLog(TRUE, LOG_ERR, CFSTR("CFPropertyListCreateXMLData() failed"));
  94                 close(fd);
  95                 return kSCStatusFailed;
  96         }
  97         (void) write(fd, CFDataGetBytePtr(xmlData), CFDataGetLength(xmlData));
  98         (void) close(fd);
  99         CFRelease(xmlData);
 100
 101         return kSCStatusOK;
 102 }
 103
 104
 105 kern_return_t
 106 _snapshot(mach_port_t server, int *sc_status)
 107 {
 108         serverSessionRef        mySession = getSession(server);
 109
 110         SCLog(_configd_verbose, LOG_DEBUG, CFSTR("Snapshot configuration database."));
 111
 112         *sc_status = __SCDynamicStoreSnapshot(mySession->store);
 113         if (*sc_status != kSCStatusOK) {
 114                 SCLog(_configd_verbose, LOG_DEBUG, CFSTR("  __SCDynamicStoreSnapshot(): %s"), SCErrorString(*sc_status));
 115         }
 116
 117         return KERN_SUCCESS;
 118 }