configd.tproj/_configclose.c

   1 /*
   2  * Copyright (c) 2000, 2001, 2003, 2004, 2006-2012, 2015, 2016 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         CFDictionaryRef                 dict;
  98         CFArrayRef                      keys;
  99         CFIndex                         keyCnt;
 100         serverSessionRef                mySession;
 101         CFStringRef                     sessionKey;
 102         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)*store;
 103
 104         SC_trace("close   : %5d",
 105                  storePrivate->server);
 106
 107         /* Remove all notification keys and patterns */
 108         removeAllKeys(*store, FALSE);   // keys
 109         removeAllKeys(*store, TRUE);    // patterns
 110
 111         /* Remove/cancel any outstanding notification requests. */
 112         __MACH_PORT_DEBUG(storePrivate->notifyPort != MACH_PORT_NULL, "*** __SCDynamicStoreClose", storePrivate->notifyPort);
 113         (void) __SCDynamicStoreNotifyCancel(*store);
 114
 115         /* Remove any session keys */
 116         sessionKey = CFStringCreateWithFormat(NULL, NULL, CFSTR("%d"), storePrivate->server);
 117         dict = CFDictionaryGetValue(sessionData, sessionKey);
 118         keys = CFDictionaryGetValue(dict, kSCDSessionKeys);
 119         if (keys && ((keyCnt = CFArrayGetCount(keys)) > 0)) {
 120                 CFIndex i;
 121                 Boolean push    = FALSE;
 122
 123                 /* remove session keys */
 124                 for (i = 0; i < keyCnt; i++) {
 125                         if (isMySessionKey(sessionKey, CFArrayGetValueAtIndex(keys, i))) {
 126                                 (void) __SCDynamicStoreRemoveValue(*store, CFArrayGetValueAtIndex(keys, i), TRUE);
 127                                 push = TRUE;
 128                         }
 129                 }
 130
 131                 if (push) {
 132                         /* push changes */
 133                         (void) __SCDynamicStorePush();
 134                 }
 135         }
 136         CFRelease(sessionKey);
 137
 138         /*
 139          * invalidate and release our run loop source on the server
 140          * port (for this client).  Then, release the port.
 141          */
 142         mySession = getSession(storePrivate->server);
 143         assert(mySession != NULL);
 144
 145         if (mySession->serverRunLoopSource) {
 146                 CFRunLoopSourceInvalidate(mySession->serverRunLoopSource);
 147                 CFRelease(mySession->serverRunLoopSource);
 148                 mySession->serverRunLoopSource = NULL;
 149         }
 150         if (mySession->serverPort != NULL) {
 151                 CFMachPortInvalidate(mySession->serverPort);
 152                 CFRelease(mySession->serverPort);
 153                 mySession->serverPort = NULL;
 154         }
 155
 156         storePrivate->server = MACH_PORT_NULL;
 157         CFRelease(*store);
 158         *store = NULL;
 159
 160         return kSCStatusOK;
 161 }