content/browser/renderer_host/sandbox_ipc_linux.h

   1 // Copyright 2014 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 // http://code.google.com/p/chromium/wiki/LinuxSandboxIPC
   6
   7 #ifndef CONTENT_BROWSER_RENDERER_HOST_SANDBOX_IPC_LINUX_H_
   8 #define CONTENT_BROWSER_RENDERER_HOST_SANDBOX_IPC_LINUX_H_
   9
  10 #include <vector>
  11
  12 #include "base/files/scoped_file.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "base/pickle.h"
  15 #include "base/threading/simple_thread.h"
  16 #include "content/child/blink_platform_impl.h"
  17 #include "skia/ext/skia_utils_base.h"
  18
  19 namespace content {
  20
  21 class SandboxIPCHandler : public base::DelegateSimpleThread::Delegate {
  22  public:
  23   // lifeline_fd: the read end of a pipe which the main thread holds
  24   // the other end of.
  25   // browser_socket: the browser's end of the sandbox IPC socketpair.
  26   SandboxIPCHandler(int lifeline_fd, int browser_socket);
  27   ~SandboxIPCHandler() override;
  28
  29   void Run() override;
  30
  31  private:
  32   void EnsureWebKitInitialized();
  33
  34   int FindOrAddPath(const SkString& path);
  35
  36   void HandleRequestFromRenderer(int fd);
  37
  38   void HandleFontMatchRequest(int fd,
  39                               PickleIterator iter,
  40                               const std::vector<base::ScopedFD*>& fds);
  41
  42   void HandleFontOpenRequest(int fd,
  43                              PickleIterator iter,
  44                              const std::vector<base::ScopedFD*>& fds);
  45
  46   void HandleGetFallbackFontForChar(int fd,
  47                                   PickleIterator iter,
  48                                   const std::vector<base::ScopedFD*>& fds);
  49
  50   void HandleGetStyleForStrike(int fd,
  51                                PickleIterator iter,
  52                                const std::vector<base::ScopedFD*>& fds);
  53
  54   void HandleLocaltime(int fd,
  55                        PickleIterator iter,
  56                        const std::vector<base::ScopedFD*>& fds);
  57
  58   void HandleMakeSharedMemorySegment(int fd,
  59                                      PickleIterator iter,
  60                                      const std::vector<base::ScopedFD*>& fds);
  61
  62   void HandleMatchWithFallback(int fd,
  63                                PickleIterator iter,
  64                                const std::vector<base::ScopedFD*>& fds);
  65
  66   void SendRendererReply(const std::vector<base::ScopedFD*>& fds,
  67                          const Pickle& reply,
  68                          int reply_fd);
  69
  70   const int lifeline_fd_;
  71   const int browser_socket_;
  72   scoped_ptr<BlinkPlatformImpl> blink_platform_impl_;
  73   SkTDArray<SkString*> paths_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(SandboxIPCHandler);
  76 };
  77
  78 }  // namespace content
  79
  80 #endif  // CONTENT_BROWSER_RENDERER_HOST_SANDBOX_IPC_LINUX_H_