PTabContext.ipdlh (1372B)
1 /* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8 -*- */ 2 /* vim: set sw=4 ts=8 et tw=80 ft=cpp : */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 include "mozilla/dom/TabMessageUtils.h"; 8 9 include protocol PBrowser; 10 11 using mozilla::OriginAttributes from "mozilla/ipc/BackgroundUtils.h"; 12 13 namespace mozilla { 14 namespace dom { 15 16 // An IPCTabContext which corresponds to a PBrowser opened by a child when it 17 // receives window.open(). 18 struct PopupIPCTabContext 19 { 20 PBrowser opener; 21 uint64_t chromeOuterWindowID; 22 }; 23 24 // An IPCTabContext which corresponds to an app, browser, or normal frame. 25 struct FrameIPCTabContext 26 { 27 uint64_t chromeOuterWindowID; 28 29 // Maximum number of touch points on the screen. 30 uint32_t maxTouchPoints; 31 }; 32 33 // IPCTabContext is an analog to mozilla::dom::TabContext. Both specify an 34 // iframe/PBrowser's own and containing app-ids and tell you whether the 35 // iframe/PBrowser is a browser frame. But only IPCTabContext is allowed to 36 // travel over IPC. 37 // 38 // We need IPCTabContext (specifically, PopupIPCTabContext) to prevent a 39 // privilege escalation attack by a compromised child process. 40 union IPCTabContext 41 { 42 PopupIPCTabContext; 43 FrameIPCTabContext; 44 }; 45 46 } 47 }