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https://github.com/RGBCube/serenity
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17e5fc301b
WindowServer needs persistent access to a few things: - /res (for themes, fonts, cursors, apps, wallpapers, etc.) - /etc/passwd (for username lookup, not sure this is actually needed..) - /home/anon/WindowManager.ini (FIXME: this should not be hard-coded..) These things are unveiled temporarily, and then dropped: - /tmp (for setting up sockets) - /dev (for opening input and framebuffer devices) This leaves WindowServer running with a very limited view of the file system, how neat is that!
121 lines
3.9 KiB
C++
121 lines
3.9 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibCore/CConfigFile.h>
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#include <LibDraw/Palette.h>
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#include <LibDraw/SystemTheme.h>
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#include <WindowServer/WSCompositor.h>
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#include <WindowServer/WSEventLoop.h>
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#include <WindowServer/WSScreen.h>
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#include <WindowServer/WSWindowManager.h>
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#include <signal.h>
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#include <stdio.h>
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int main(int, char**)
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{
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if (pledge("stdio video thread shared_buffer accept rpath wpath cpath unix proc exec fattr", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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if (unveil("/res", "r") < 0) {
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perror("unveil");
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return 1;
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}
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if (unveil("/etc/passwd", "r") < 0) {
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perror("unveil");
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return 1;
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}
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if (unveil("/tmp", "cw") < 0) {
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perror("unveil");
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return 1;
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}
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// FIXME: WindowServer should obviously not hardcode this.
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// Instead, we should have a ConfigServer or similar that allows programs
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// to get/set user settings over IPC without giving them access to any files.
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if (unveil("/home/anon/WindowManager.ini", "rwc") < 0) {
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perror("unveil");
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return 1;
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}
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if (unveil("/dev", "rw") < 0) {
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perror("unveil");
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return 1;
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}
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struct sigaction act;
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memset(&act, 0, sizeof(act));
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act.sa_flags = SA_NOCLDWAIT;
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act.sa_handler = SIG_IGN;
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int rc = sigaction(SIGCHLD, &act, nullptr);
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if (rc < 0) {
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perror("sigaction");
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return 1;
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}
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auto wm_config = CConfigFile::get_for_app("WindowManager");
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auto theme_name = wm_config->read_entry("Theme", "Name", "Default");
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auto theme = load_system_theme(String::format("/res/themes/%s.ini", theme_name.characters()));
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ASSERT(theme);
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set_system_theme(*theme);
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auto palette = PaletteImpl::create_with_shared_buffer(*theme);
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WSEventLoop loop;
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if (pledge("stdio video thread shared_buffer accept rpath wpath cpath proc exec", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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WSScreen screen(wm_config->read_num_entry("Screen", "Width", 1024),
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wm_config->read_num_entry("Screen", "Height", 768));
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WSCompositor::the();
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auto wm = WSWindowManager::construct(*palette);
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auto mm = WSMenuManager::construct();
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if (unveil("/tmp", "") < 0) {
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perror("unveil");
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return 1;
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}
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if (unveil("/dev", "") < 0) {
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perror("unveil");
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return 1;
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}
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if (unveil(nullptr, nullptr) < 0) {
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perror("unveil");
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return 1;
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}
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dbgprintf("Entering WindowServer main loop.\n");
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loop.exec();
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ASSERT_NOT_REACHED();
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}
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