NaCl: enable meta-based validation for shared libraries.

ppapi/native_client/src/trusted/plugin/plugin.h

 // -*- c++ -*-
 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // The portable representation of an instance and root scriptable object.
 // The PPAPI version of the plugin instantiates a subclass of this class.
 
 #ifndef NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PLUGIN_H_
 #define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PLUGIN_H_
 
 #include <stdio.h>
 
 #include <map>
 #include <queue>
 #include <set>
 #include <string>
 
 #include "native_client/src/include/nacl_macros.h"
 #include "native_client/src/include/nacl_scoped_ptr.h"
 #include "native_client/src/include/nacl_string.h"
 #include "native_client/src/trusted/plugin/file_downloader.h"
 #include "native_client/src/trusted/plugin/nacl_subprocess.h"
 #include "native_client/src/trusted/plugin/pnacl_coordinator.h"
 #include "native_client/src/trusted/plugin/service_runtime.h"
 #include "native_client/src/trusted/plugin/utility.h"
+#include "native_client/src/trusted/reverse_service/nacl_file_info.h"
 
 #include "ppapi/c/private/ppb_nacl_private.h"
 #include "ppapi/cpp/private/var_private.h"
 // for pp::VarPrivate
 #include "ppapi/cpp/private/instance_private.h"
 #include "ppapi/cpp/rect.h"
 #include "ppapi/cpp/url_loader.h"
 #include "ppapi/cpp/var.h"
 #include "ppapi/cpp/view.h"
 
@@ skipping 208 matching lines @@
 
   // Called back by CallOnMainThread.  Dispatches the first enqueued progress
   // event.
   void DispatchProgressEvent(int32_t result);
 
   // Requests a URL asynchronously resulting in a call to pp_callback with
   // a PP_Error indicating status. On success an open file descriptor
   // corresponding to the url body is recorded for further lookup.
   bool StreamAsFile(const nacl::string& url,
                     PP_CompletionCallback pp_callback);
-  // Returns an open POSIX file descriptor retrieved by StreamAsFile()
-  // or NACL_NO_FILE_DESC. The caller must take ownership of the descriptor.
-  int32_t GetPOSIXFileDesc(const nacl::string& url);
+
+  // Returns rich information for a file retrieved by StreamAsFile(). This info
+  // contains a file descriptor. The caller must take ownership of this
+  // descriptor.
+  struct NaClFileInfo GetFileInfo(const nacl::string& url);
 
   // A helper function that gets the scheme type for |url|. Uses URLUtil_Dev
   // interface which this class has as a member.
   UrlSchemeType GetUrlScheme(const std::string& url);
 
   // A helper function that indicates if |url| can be requested by the document
   // under the same-origin policy. Strictly speaking, it may be possible for the
   // document to request the URL using CORS even if this function returns false.
   bool DocumentCanRequest(const std::string& url);
 
@@ skipping 200 matching lines @@
   // it and replay it to nexe after it's loaded. We need to replay when this
   // URLLoader resource is non-is_null().
   pp::URLLoader document_load_to_replay_;
 
   nacl::string mime_type_;
 
   // Keep track of the FileDownloaders created to fetch urls.
   std::set<FileDownloader*> url_downloaders_;
   // Keep track of file descriptors opened by StreamAsFile().
   // These are owned by the browser.
-  std::map<nacl::string, int32_t> url_fd_map_;
+  std::map<nacl::string, struct NaClFileInfo> url_file_info_map_;
 
   // Pending progress events.
   std::queue<ProgressEvent*> progress_events_;
 
   // Used for NexeFileDidOpenContinuation
   int64_t load_start_;
 
   int64_t init_time_;
   int64_t ready_time_;
   size_t nexe_size_;
@@ skipping 13 matching lines @@
   const FileDownloader* FindFileDownloader(PP_Resource url_loader) const;
 
   int64_t time_of_last_progress_event_;
 
   const PPB_NaCl_Private* nacl_interface_;
 };
 
 }  // namespace plugin
 
 #endif  // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PLUGIN_H_