configd.tproj/_configclose.c

   1 /*
   2  * Copyright (c) 2000, 2001, 2003, 2004, 2006-2012, 2015, 2016, 2019 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 <unistd.h>
  35
  36 #include "configd.h"
  37 #include "session.h"
  38
  39 static Boolean
  40 isMySessionKey(CFStringRef sessionKey, CFStringRef key)
  41 {
  42         CFDictionaryRef dict;
  43         CFStringRef     storeSessionKey;
  44
  45         dict = CFDictionaryGetValue(storeData, key);
  46         if (!dict) {
  47                 /* if key no longer exists */
  48                 return FALSE;
  49         }
  50
  51         storeSessionKey = CFDictionaryGetValue(dict, kSCDSession);
  52         if (!storeSessionKey) {
  53                 /* if this is not a session key */
  54                 return FALSE;
  55         }
  56
  57         if (!CFEqual(sessionKey, storeSessionKey)) {
  58                 /* if this is not "my" session key */
  59                 return FALSE;
  60         }
  61
  62         return TRUE;
  63 }
  64
  65
  66 static void
  67 removeAllKeys(SCDynamicStoreRef store, Boolean isRegex)
  68 {
  69         SCDynamicStorePrivateRef        storePrivate    = (SCDynamicStorePrivateRef)store;
  70         CFArrayRef                      keys;
  71         CFIndex                         n;
  72
  73         keys = isRegex ? storePrivate->patterns : storePrivate->keys;
  74         n = (keys != NULL) ? CFArrayGetCount(keys) : 0;
  75         if (n > 0) {
  76                 CFIndex         i;
  77                 CFArrayRef      keysToRemove;
  78
  79                 keysToRemove = CFArrayCreateCopy(NULL, keys);
  80                 for (i = 0; i < n; i++) {
  81                         (void) __SCDynamicStoreRemoveWatchedKey(store,
  82                                                                 CFArrayGetValueAtIndex(keysToRemove, i),
  83                                                                 isRegex,
  84                                                                 TRUE);
  85                 }
  86                 CFRelease(keysToRemove);
  87         }
  88
  89         return;
  90 }
  91
  92
  93 __private_extern__
  94 int
  95 __SCDynamicStoreClose(SCDynamicStoreRef *store)
  96 {
  97         serverSessionRef                mySession;
  98         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)*store;
  99
 100         SC_trace("close   : %5d",
 101                  storePrivate->server);
 102
 103         /* Remove all notification keys and patterns */
 104         removeAllKeys(*store, FALSE);   // keys
 105         removeAllKeys(*store, TRUE);    // patterns
 106
 107         /* Remove/cancel any outstanding notification requests. */
 108         __MACH_PORT_DEBUG(storePrivate->notifyPort != MACH_PORT_NULL, "*** __SCDynamicStoreClose", storePrivate->notifyPort);
 109         (void) __SCDynamicStoreNotifyCancel(*store);
 110
 111         /* Remove any session keys */
 112         mySession = getSession(storePrivate->server);
 113         if (mySession->sessionKeys != NULL) {
 114                 CFIndex         n       = CFArrayGetCount(mySession->sessionKeys);
 115                 Boolean         push    = FALSE;
 116                 CFStringRef     sessionKey;
 117
 118                 sessionKey = CFStringCreateWithFormat(NULL, NULL, CFSTR("%d"), storePrivate->server);
 119                 for (CFIndex i = 0; i < n; i++) {
 120                         CFStringRef     key     = CFArrayGetValueAtIndex(mySession->sessionKeys, i);
 121
 122                         if (isMySessionKey(sessionKey, key)) {
 123                                 (void) __SCDynamicStoreRemoveValue(*store, key, TRUE);
 124                                 push = TRUE;
 125                         }
 126                 }
 127                 CFRelease(sessionKey);
 128
 129                 if (push) {
 130                         /* push changes */
 131                         (void) __SCDynamicStorePush();
 132                 }
 133         }
 134
 135         storePrivate->server = MACH_PORT_NULL;
 136
 137         CFRelease(*store);
 138         *store = NULL;
 139
 140         return kSCStatusOK;
 141 }