keychain/escrowrequest/EscrowRequestXPCServer.m

   1 /*
   2  * Copyright (c) 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 #import <Foundation/Foundation.h>
  25 #import <objc/runtime.h>
  26 #import <Foundation/NSXPCConnection_Private.h>
  27
  28 #import "utilities/debugging.h"
  29 #import <Security/SecEntitlements.h>
  30 #import "keychain/escrowrequest/EscrowRequestServer.h"
  31 #import "keychain/escrowrequest/EscrowRequestXPCServer.h"
  32 #import "keychain/escrowrequest/EscrowRequestXPCProtocol.h"
  33 #import "keychain/categories/NSError+UsefulConstructors.h"
  34
  35 @interface EscrowRequestXPCServer : NSObject <NSXPCListenerDelegate>
  36 @end
  37
  38 @implementation EscrowRequestXPCServer
  39
  40 - (BOOL)listener:(__unused NSXPCListener *)listener shouldAcceptNewConnection:(NSXPCConnection *)newConnection
  41 {
  42     NSNumber *num = [newConnection valueForEntitlement:kSecEntitlementPrivateEscrowRequest];
  43     if (![num isKindOfClass:[NSNumber class]] || ![num boolValue]) {
  44         secerror("escrow-update: Client pid: %d doesn't have entitlement: %@",
  45                  [newConnection processIdentifier], kSecEntitlementPrivateEscrowRequest);
  46         return NO;
  47     }
  48
  49     secnotice("escrowrequest", "received connection from client pid %d", [newConnection processIdentifier]);
  50     newConnection.exportedInterface = SecEscrowRequestSetupControlProtocol([NSXPCInterface interfaceWithProtocol:@protocol(EscrowRequestXPCProtocol)]);
  51
  52     newConnection.exportedObject = [EscrowRequestServer server];
  53
  54     [newConnection resume];
  55
  56     return YES;
  57 }
  58 @end
  59
  60 void
  61 EscrowRequestXPCServerInitialize(void)
  62 {
  63     static dispatch_once_t once;
  64     static EscrowRequestXPCServer *server;
  65     static NSXPCListener *listener;
  66
  67     dispatch_once(&once, ^{
  68         @autoreleasepool {
  69             server = [EscrowRequestXPCServer new];
  70
  71             listener = [[NSXPCListener alloc] initWithMachServiceName:@(kSecuritydEscrowRequestServiceName)];
  72             listener.delegate = server;
  73             [listener resume];
  74         }
  75     });
  76 }