1 // Copyright 2015 The Chromium Authors 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 COMPONENTS_NACL_BROWSER_BAD_MESSAGE_H_ 6 #define COMPONENTS_NACL_BROWSER_BAD_MESSAGE_H_ 7 8 namespace content { 9 class BrowserMessageFilter; 10 } 11 12 namespace nacl { 13 namespace bad_message { 14 15 // The browser process often chooses to terminate a renderer if it receives 16 // a bad IPC message. The reasons are tracked for metrics. 17 // 18 // See also content/browser/bad_message.h. 19 // 20 // NOTE: Do not remove or reorder elements in this list. Add new entries at the 21 // end. Items may be renamed but do not change the values. We rely on the enum 22 // values in histograms. 23 enum BadMessageReason { 24 NFH_OPEN_EXECUTABLE_BAD_ROUTING_ID = 0, 25 NHMF_LAUNCH_CONTINUATION_BAD_ROUTING_ID = 1, 26 NHMF_GET_NEXE_FD_BAD_URL = 2, 27 28 // Please add new elements here. The naming convention is abbreviated class 29 // name (e.g. NaclHostMessageFilter becomes NHMF) plus a unique description of 30 // the reason. After making changes, you MUST update histograms.xml by 31 // running: 32 // "python tools/metrics/histograms/update_bad_message_reasons.py" 33 BAD_MESSAGE_MAX 34 }; 35 36 // Called when a browser message filter receives a bad IPC message from a 37 // renderer or other child process. Logs the event, records a histogram metric 38 // for the |reason|, and terminates the process for |filter|. 39 void ReceivedBadMessage(content::BrowserMessageFilter* filter, 40 BadMessageReason reason); 41 42 } // namespace bad_message 43 } // namespace nacl 44 45 #endif // COMPONENTS_NACL_BROWSER_BAD_MESSAGE_H_ 46