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 Channel;
  16
  17 // This abstract subclass of AttachmentBroker is intended for use in a
  18 // privileged process . When unprivileged processes want to send attachments,
  19 // the attachments get routed through the privileged process, and more
  20 // specifically, an instance of this class.
  21 class IPC_EXPORT AttachmentBrokerPrivileged : public IPC::AttachmentBroker {
  22  public:
  23   AttachmentBrokerPrivileged();
  24   ~AttachmentBrokerPrivileged() override;
  25
  26   // Each unprivileged process should have one IPC channel on which it
  27   // communicates attachment information with the broker process. In the broker
  28   // process, these channels must be registered and deregistered with the
  29   // Attachment Broker as they are created and destroyed.
  30   void RegisterCommunicationChannel(Channel* channel);
  31   void DeregisterCommunicationChannel(Channel* channel);
  32
  33  protected:
  34   // Returns nullptr if no channel is found.
  35   Channel* GetChannelWithProcessId(base::ProcessId id);
  36
  37  private:
  38   std::vector<Channel*> channels_;
  39   DISALLOW_COPY_AND_ASSIGN(AttachmentBrokerPrivileged);
  40 };
  41
  42 }  // namespace IPC
  43
  44 #endif  // IPC_ATTACHMENT_BROKER_PRIVILEGED_H_