ipc/attachment_broker_privileged.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef IPC_ATTACHMENT_BROKER_PRIVILEGED_H_
   6 #define IPC_ATTACHMENT_BROKER_PRIVILEGED_H_
   7
   8 #include <vector>
   9
  10 #include "ipc/attachment_broker.h"
  11 #include "ipc/ipc_export.h"
  12
  13 namespace IPC {
  14
  15 class Endpoint;
  16 class Sender;
  17
  18 // This abstract subclass of AttachmentBroker is intended for use in a
  19 // privileged process . When unprivileged processes want to send attachments,
  20 // the attachments get routed through the privileged process, and more
  21 // specifically, an instance of this class.
  22 class IPC_EXPORT AttachmentBrokerPrivileged : public IPC::AttachmentBroker {
  23  public:
  24   AttachmentBrokerPrivileged();
  25   ~AttachmentBrokerPrivileged() override;
  26
  27   // Each unprivileged process should have one IPC channel on which it
  28   // communicates attachment information with the broker process. In the broker
  29   // process, these channels must be registered and deregistered with the
  30   // Attachment Broker as they are created and destroyed.
  31   void RegisterCommunicationChannel(Endpoint* endpoint);
  32   void DeregisterCommunicationChannel(Endpoint* endpoint);
  33
  34  protected:
  35   // Returns the sender whose peer's process id is |id|.
  36   // Returns nullptr if no sender is found.
  37   Sender* GetSenderWithProcessId(base::ProcessId id);
  38
  39  private:
  40   std::vector<Endpoint*> endpoints_;
  41   DISALLOW_COPY_AND_ASSIGN(AttachmentBrokerPrivileged);
  42 };
  43
  44 }  // namespace IPC
  45
  46 #endif  // IPC_ATTACHMENT_BROKER_PRIVILEGED_H_