SecurityServer/server.h

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 //
  20 // server - the actual Server object
  21 //
  22 #ifndef _H_SERVER
  23 #define _H_SERVER
  24
  25 #include "securityserver.h"
  26 #include <Security/machserver.h>
  27 #include <Security/powerwatch.h>
  28 #include <Security/cssmclient.h>
  29 #include <Security/cspclient.h>
  30 #include <Security/osxsigner.h>
  31 #include <Security/devrandom.h>
  32 #include <Security/uniformrandom.h>
  33 #include "codesigdb.h"
  34 #include "connection.h"
  35 #include "key.h"
  36 #include "xdatabase.h"
  37 #include "authority.h"
  38 #include <map>
  39
  40 #define EQUIVALENCEDBPATH "/var/db/CodeEquivalenceDatabase"
  41
  42
  43 class Server : public MachPlusPlus::MachServer,
  44                public UniformRandomBlobs<DevRandomGenerator> {
  45 public:
  46         Server(Authority &myAuthority, CodeSignatures &signatures, const char *bootstrapName);
  47         ~Server();
  48
  49     // run the server until it shuts down
  50         void run();
  51
  52     //
  53     // Retrieve pieces of the Server's object web.
  54     // These are all static methods that use the active() Server of this thread.
  55     //
  56         static Server &active() { return safer_cast<Server &>(MachServer::active()); }
  57         static const char *bootstrapName() { return active().mBootstrapName.c_str(); }
  58
  59         static Connection &connection(mach_port_t replyPort);
  60         static Connection &connection(bool tolerant = false);
  61         static void requestComplete();
  62
  63         static Key &key(KeyHandle key)
  64         { return findHandle<Key>(key, CSSMERR_CSP_INVALID_KEY_REFERENCE); }
  65     static Key *optionalKey(KeyHandle k) { return (k == noKey) ? NULL : &key(k); }
  66         static Database &database(DbHandle db)
  67         { return findHandle<Database>(db, CSSMERR_DL_INVALID_DB_HANDLE); }
  68         static Database *optionalDatabase(DbHandle db) { return db ? &database(db) : NULL; }
  69     static Authority &authority() { return active().mAuthority; }
  70         static CodeSignatures &codeSignatures() { return active().mCodeSignatures; }
  71         static SecurityServerAcl &aclBearer(AclKind kind, CSSM_HANDLE handle);
  72         static CssmClient::CSP &csp() { return active().getCsp(); }
  73
  74         void loadCssm();
  75
  76 public:
  77         // set up a new connection
  78         enum ConnectLevel {
  79                 connectNewSession,
  80                 connectNewProcess,
  81                 connectNewThread
  82         };
  83         void setupConnection(ConnectLevel type, Port servicePort, Port replyPort, Port taskPort,
  84         const security_token_t &securityToken,
  85                 const ClientSetupInfo *info = NULL, const char *executablePath = NULL);
  86
  87         void endConnection(Port replyPort);
  88
  89         static void releaseWhenDone(CssmAllocator &alloc, void *memory)
  90         { MachServer::active().releaseWhenDone(alloc, memory); }
  91         static void releaseWhenDone(void *memory)
  92         { releaseWhenDone(CssmAllocator::standard(), memory); }
  93
  94 protected:
  95     // implementation methods of MachServer
  96         boolean_t handle(mach_msg_header_t *in, mach_msg_header_t *out);
  97         void notifyDeadName(Port port);
  98         void notifyNoSenders(Port port, mach_port_mscount_t);
  99
 100 private:
 101     class SleepWatcher : public MachPlusPlus::PortPowerWatcher {
 102     public:
 103         void systemWillSleep();
 104     };
 105     SleepWatcher sleepWatcher;
 106
 107 private:
 108         Mutex lock;                                     // master lock
 109
 110         // mach bootstrap registration name
 111         std::string mBootstrapName;
 112
 113         // map of connections (by client reply port)
 114         typedef map<mach_port_t, Connection *> ConnectionMap;
 115         ConnectionMap connections;
 116
 117         // map of processes (by process task port)
 118         typedef map<mach_port_t, Process *> ProcessMap;
 119         ProcessMap processes;
 120
 121         // Current connection, if any (per thread).
 122         // Set as a side effect of calling connection(mach_port_t)
 123         // and returned by connection(bool).
 124         PerThreadPointer<Connection> mCurrentConnection;
 125
 126     // CSSM components
 127     CssmClient::Cssm mCssm;                             // CSSM instance
 128     CssmClient::Module mCSPModule;              // CSP module
 129         CssmClient::CSP mCSP;                           // CSP attachment
 130     CssmClient::CSP &getCsp();                  // lazily initialize, then return CSP attachment
 131
 132         Authority &mAuthority;
 133         CodeSignatures &mCodeSignatures;
 134 };
 135
 136 #endif //_H_SERVER