projects / apple / security.git / blame
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|---|---|---|
| d8f41ccd A |
1 | /* |
| 2 | * Copyright (c) 2004 Apple Computer, 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 | // | |
| 26 | // child - track a single child process and its belongings | |
| 27 | // | |
| 28 | #ifndef _CHILD_H_ | |
| 29 | #define _CHILD_H_ 1 | |
| 30 | ||
| 31 | #include <security_utilities/mach++.h> | |
| 32 | #include <security_utilities/unixchild.h> | |
| 33 | ||
| 34 | using MachPlusPlus::Port; | |
| 35 | using MachPlusPlus::TaskPort; | |
| 36 | ||
| 37 | ||
| 38 | // | |
| 39 | // ServerChild builds on the generic UNIX Child abstraction. | |
| 40 | // The child is expected to engage in a checkin protocol after launch, | |
| 41 | // whereby it RPC-calls childCheckIn in securityd and thus authenticates | |
| 42 | // and declares readiness to provide service. | |
| 43 | // | |
| 44 | // @@@ PerWhat are these, if they are at all? | |
| 45 | // | |
| 46 | class ServerChild : public UnixPlusPlus::Child { | |
| 47 | public: | |
| 48 | ServerChild(); | |
| 49 | ~ServerChild(); | |
| 50 | ||
| 51 | Port servicePort() const { return mServicePort; } | |
| 52 | bool ready() const { return mServicePort; } | |
| 53 | ||
| 54 | public: | |
| 55 | static void checkIn(Port servicePort, pid_t pid); | |
| 56 | ||
| 57 | protected: | |
| 58 | void childAction() = 0; // must be provided by subclass | |
| 59 | void parentAction(); // fully implemented | |
| 60 | void dying(); // fully implemented | |
| 61 | ||
| 62 | private: | |
| 63 | Port mServicePort; // child's main service port | |
| 64 | ||
| 65 | private: | |
| 66 | typedef map<pid_t, ServerChild *> CheckinMap; | |
| 67 | static CheckinMap mCheckinMap; | |
| 68 | ||
| 69 | // The parent side will wait on mCheckinCond until the child checks in | |
| 70 | // or fails. During that time ONLY, mCheckinLock protects the entire Child | |
| 71 | // object. | |
| 72 | static Mutex mCheckinLock; | |
| 73 | Condition mCheckinCond; | |
| 74 | }; | |
| 75 | ||
| 76 | ||
| 77 | #endif // _CHILD_H_ |