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/*
* Copyright (C) 2013 University of Szeged
* Copyright (C) 2013 Renata Hodovan <reni@inf.u-szeged.hu>
* Copyright (C) 2010 Apple Inc. All rights reserved.
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "WebProcess.h"
#include "WebKit2Initialize.h"
#include <QDebug>
#include <QGuiApplication>
#include <QList>
#include <QString>
#include <QStringList>
#include <QUrl>
#include <errno.h>
#include <wtf/RunLoop.h>
#ifndef NDEBUG
#if !OS(WINDOWS)
#include <unistd.h>
#endif
#endif
#if USE(MACH_PORTS)
#include <servers/bootstrap.h>
extern "C" kern_return_t bootstrap_look_up2(mach_port_t, const name_t, mach_port_t*, pid_t, uint64_t);
#endif
#if ENABLE(SUID_SANDBOX_LINUX)
#include "SandboxEnvironmentLinux.h"
#include <sys/wait.h>
#endif
using namespace WebCore;
namespace WebKit {
#ifndef NDEBUG
#if OS(WINDOWS)
static void sleep(unsigned seconds)
{
::Sleep(seconds * 1000);
}
#endif
#endif
#if ENABLE(SUID_SANDBOX_LINUX)
pid_t chrootMe()
{
// Get the file descriptor of the socketpair.
char* sandboxSocketDescriptorString = getenv(SANDBOX_DESCRIPTOR);
if (!sandboxSocketDescriptorString)
return -1;
char* firstInvalidCharacter;
long int sandboxSocketDescriptor = strtol(sandboxSocketDescriptorString, &firstInvalidCharacter, 10);
if (*firstInvalidCharacter != '\0') {
fprintf(stderr, "The socket descriptor of sandbox is not valid.\n");
return -1;
}
// Get the PID of the setuid helper.
char* sandboxHelperPIDString = getenv(SANDBOX_HELPER_PID);
pid_t sandboxHelperPID = -1;
// If no PID is available, the default of -1 will do.
if (sandboxHelperPIDString) {
errno = 0;
sandboxHelperPID = strtol(sandboxHelperPIDString, &firstInvalidCharacter, 10);
if (*firstInvalidCharacter != '\0') {
fprintf(stderr, "The PID of sandbox is not valid.\n");
return -1;
}
}
// Send the chrootMe message to the helper.
char sandboxMeMessage = MSG_CHROOTME;
ssize_t numberOfCharacters = write(sandboxSocketDescriptor, &sandboxMeMessage, 1);
if (numberOfCharacters != 1) {
fprintf(stderr, "ChrootMe msg failed to write: %s.\n", strerror(errno));
return -1;
}
// Read the acknowledgement message from the helper.
numberOfCharacters = read(sandboxSocketDescriptor, &sandboxMeMessage, 1);
if (numberOfCharacters != 1 || sandboxMeMessage != MSG_CHROOTED) {
fprintf(stderr, "Couldn't read the confirmation message: %s.\n", strerror(errno));
return -1;
}
close(sandboxSocketDescriptor);
// Wait for the helper process.
int expectedPID = waitpid(sandboxHelperPID, 0, 0);
if (expectedPID != -1 && (sandboxHelperPID == -1 || expectedPID == sandboxHelperPID))
return expectedPID;
fprintf(stderr, "Couldn't wait for the helper process: %s\n", strerror(errno));
return -1;
}
#endif
Q_DECL_EXPORT int WebProcessMainQt(QGuiApplication* app)
{
#if ENABLE(SUID_SANDBOX_LINUX)
pid_t helper = chrootMe();
if (helper == -1) {
fprintf(stderr, "Asking for chroot failed.\n");
return -1;
}
#endif
InitializeWebKit2();
// Create the connection.
if (app->arguments().size() <= 1) {
qDebug() << "Error: wrong number of arguments.";
return 1;
}
#if USE(MACH_PORTS)
QString serviceName = app->arguments().value(1);
// Get the server port.
mach_port_t identifier;
kern_return_t kr = bootstrap_look_up2(bootstrap_port, serviceName.toUtf8().data(), &identifier, 0, 0);
if (kr) {
printf("bootstrap_look_up2 result: %x", kr);
return 2;
}
#else
bool wasNumber = false;
qulonglong id = app->arguments().at(1).toULongLong(&wasNumber, 10);
if (!wasNumber) {
qDebug() << "Error: connection identifier wrong.";
return 1;
}
IPC::Connection::Identifier identifier;
#if OS(WINDOWS)
// Convert to HANDLE
identifier = reinterpret_cast<IPC::Connection::Identifier>(id);
#else
// Convert to int
identifier = static_cast<IPC::Connection::Identifier>(id);
#endif
#endif
WebKit::ChildProcessInitializationParameters parameters;
parameters.connectionIdentifier = identifier;
WebKit::WebProcess::singleton().initialize(parameters);
RunLoop::run();
// FIXME: Do more cleanup here.
delete app;
return 0;
}
}
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