SystemConfiguration.fproj/SCDList.c

   1 /*
   2  * Copyright (c) 2000-2005, 2009, 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  * March 24, 2000               Allan Nathanson <ajn@apple.com>
  31  * - initial revision
  32  */
  33
  34 #include <mach/mach.h>
  35 #include <mach/mach_error.h>
  36
  37 #include <SystemConfiguration/SystemConfiguration.h>
  38 #include <SystemConfiguration/SCPrivate.h>
  39 #include "SCDynamicStoreInternal.h"
  40 #include "config.h"             /* MiG generated file */
  41
  42 CFArrayRef
  43 SCDynamicStoreCopyKeyList(SCDynamicStoreRef store, CFStringRef pattern)
  44 {
  45         SCDynamicStorePrivateRef        storePrivate    = (SCDynamicStorePrivateRef)store;
  46         kern_return_t                   status;
  47         CFDataRef                       utfPattern;             /* serialized pattern */
  48         xmlData_t                       myPatternRef;
  49         CFIndex                         myPatternLen;
  50         xmlDataOut_t                    xmlDataRef      = NULL;         /* serialized data */
  51         mach_msg_type_number_t          xmlDataLen      = 0;
  52         int                             sc_status;
  53         CFArrayRef                      allKeys;
  54
  55         if (store == NULL) {
  56                 /* sorry, you must provide a session */
  57                 _SCErrorSet(kSCStatusNoStoreSession);
  58                 return NULL;
  59         }
  60
  61         if (storePrivate->server == MACH_PORT_NULL) {
  62                 _SCErrorSet(kSCStatusNoStoreServer);
  63                 return NULL;
  64         }
  65
  66         /* serialize the pattern */
  67         if (!_SCSerializeString(pattern, &utfPattern, (void **)&myPatternRef, &myPatternLen)) {
  68                 _SCErrorSet(kSCStatusFailed);
  69                 return NULL;
  70         }
  71
  72     retry :
  73
  74         /* send the pattern & fetch the associated data from the server */
  75         status = configlist(storePrivate->server,
  76                             myPatternRef,
  77                             myPatternLen,
  78                             TRUE,               /* isRegex == TRUE */
  79                             &xmlDataRef,
  80                             &xmlDataLen,
  81                             (int *)&sc_status);
  82
  83         if (status != KERN_SUCCESS) {
  84                 if ((status == MACH_SEND_INVALID_DEST) || (status == MIG_SERVER_DIED)) {
  85                         /* the server's gone and our session port's dead, remove the dead name right */
  86                         (void) mach_port_deallocate(mach_task_self(), storePrivate->server);
  87                 } else {
  88                         /* we got an unexpected error, leave the [session] port alone */
  89                         SCLog(TRUE, LOG_ERR, CFSTR("SCDynamicStoreCopyKeyList configlist(): %s"), mach_error_string(status));
  90                 }
  91                 storePrivate->server = MACH_PORT_NULL;
  92                 if ((status == MACH_SEND_INVALID_DEST) || (status == MIG_SERVER_DIED)) {
  93                         if (__SCDynamicStoreReconnect(store)) {
  94                                 goto retry;
  95                         }
  96                 }
  97                 sc_status = status;
  98         }
  99
 100         /* clean up */
 101         CFRelease(utfPattern);
 102
 103         if (sc_status != kSCStatusOK) {
 104                 if (xmlDataRef != NULL) {
 105                         (void) vm_deallocate(mach_task_self(), (vm_address_t)xmlDataRef, xmlDataLen);
 106                 }
 107                 _SCErrorSet(sc_status);
 108                 return NULL;
 109         }
 110
 111         /* un-serialize the list of keys */
 112         if (!_SCUnserialize((CFPropertyListRef *)&allKeys, NULL, xmlDataRef, xmlDataLen)) {
 113                 _SCErrorSet(kSCStatusFailed);
 114                 return NULL;
 115         }
 116
 117         return allKeys;
 118 }