mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-29 21:25:35 +00:00
ca40b738e4
This makes a lot of code more compact, and also avoids some redundant nsresult checks. The patch also removes a handful of redundant checks on infallible setters. --HG-- extra : rebase_source : f82426e7584d0d5cddf7c2524356f0f318fbea7d
635 lines
17 KiB
C++
635 lines
17 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsIServiceManager.h"
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#include "UDPSocketParent.h"
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#include "nsComponentManagerUtils.h"
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#include "nsIUDPSocket.h"
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#include "nsINetAddr.h"
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#include "mozilla/AppProcessChecker.h"
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#include "mozilla/unused.h"
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#include "mozilla/ipc/InputStreamUtils.h"
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#include "mozilla/net/DNS.h"
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#include "mozilla/net/NeckoCommon.h"
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#include "mozilla/net/PNeckoParent.h"
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#include "nsNetUtil.h"
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#include "mozilla/dom/ContentParent.h"
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#include "mozilla/dom/TabParent.h"
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#include "nsIPermissionManager.h"
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#include "nsIScriptSecurityManager.h"
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#include "mozilla/ipc/PBackgroundParent.h"
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#include "mtransport/runnable_utils.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_ISUPPORTS(UDPSocketParent, nsIUDPSocketListener)
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UDPSocketParent::UDPSocketParent(PBackgroundParent* aManager)
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: mBackgroundManager(aManager)
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, mNeckoManager(nullptr)
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, mIPCOpen(true)
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{
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mObserver = new mozilla::net::OfflineObserver(this);
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}
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UDPSocketParent::UDPSocketParent(PNeckoParent* aManager)
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: mBackgroundManager(nullptr)
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, mNeckoManager(aManager)
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, mIPCOpen(true)
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{
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mObserver = new mozilla::net::OfflineObserver(this);
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}
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UDPSocketParent::~UDPSocketParent()
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{
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if (mObserver) {
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mObserver->RemoveObserver();
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}
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}
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nsresult
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UDPSocketParent::OfflineNotification(nsISupports *aSubject)
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{
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nsCOMPtr<nsIAppOfflineInfo> info(do_QueryInterface(aSubject));
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if (!info) {
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return NS_OK;
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}
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uint32_t targetAppId = nsIScriptSecurityManager::UNKNOWN_APP_ID;
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info->GetAppId(&targetAppId);
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// Obtain App ID
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uint32_t appId = GetAppId();
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if (appId != targetAppId) {
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return NS_OK;
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}
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// If the app is offline, close the socket
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if (mSocket && NS_IsAppOffline(appId)) {
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mSocket->Close();
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}
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return NS_OK;
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}
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uint32_t
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UDPSocketParent::GetAppId()
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{
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return mPrincipal ? mPrincipal->GetAppId()
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: nsIScriptSecurityManager::UNKNOWN_APP_ID;
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}
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bool
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UDPSocketParent::Init(const IPC::Principal& aPrincipal,
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const nsACString& aFilter)
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{
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MOZ_ASSERT_IF(mBackgroundManager, !aPrincipal);
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// will be used once we move all UDPSocket to PBackground, or
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// if we add in Principal checking for mtransport
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Unused << mBackgroundManager;
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mPrincipal = aPrincipal;
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if (net::UsingNeckoIPCSecurity() &&
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mPrincipal &&
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!ContentParent::IgnoreIPCPrincipal()) {
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if (mNeckoManager) {
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if (!AssertAppPrincipal(mNeckoManager->Manager(), mPrincipal)) {
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return false;
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}
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} else {
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// PBackground is (for now) using a STUN filter for verification
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// it's not being used for DoS
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}
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nsCOMPtr<nsIPermissionManager> permMgr =
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services::GetPermissionManager();
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if (!permMgr) {
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NS_WARNING("No PermissionManager available!");
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return false;
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}
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uint32_t permission = nsIPermissionManager::DENY_ACTION;
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permMgr->TestExactPermissionFromPrincipal(mPrincipal, "udp-socket",
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&permission);
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if (permission != nsIPermissionManager::ALLOW_ACTION) {
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return false;
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}
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}
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if (!aFilter.IsEmpty()) {
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nsAutoCString contractId(NS_NETWORK_UDP_SOCKET_FILTER_HANDLER_PREFIX);
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contractId.Append(aFilter);
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nsCOMPtr<nsISocketFilterHandler> filterHandler =
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do_GetService(contractId.get());
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if (filterHandler) {
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nsresult rv = filterHandler->NewFilter(getter_AddRefs(mFilter));
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if (NS_FAILED(rv)) {
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printf_stderr("Cannot create filter that content specified. "
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"filter name: %s, error code: %u.", aFilter.BeginReading(), static_cast<uint32_t>(rv));
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return false;
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}
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} else {
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printf_stderr("Content doesn't have a valid filter. "
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"filter name: %s.", aFilter.BeginReading());
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return false;
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}
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}
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// We don't have browser actors in xpcshell, and hence can't run automated
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// tests without this loophole.
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if (net::UsingNeckoIPCSecurity() && !mFilter &&
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(!mPrincipal || ContentParent::IgnoreIPCPrincipal())) {
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return false;
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}
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return true;
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}
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// PUDPSocketParent methods
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bool
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UDPSocketParent::RecvBind(const UDPAddressInfo& aAddressInfo,
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const bool& aAddressReuse, const bool& aLoopback,
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const uint32_t& recvBufferSize,
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const uint32_t& sendBufferSize)
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{
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UDPSOCKET_LOG(("%s: %s:%u", __FUNCTION__, aAddressInfo.addr().get(), aAddressInfo.port()));
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if (NS_FAILED(BindInternal(aAddressInfo.addr(), aAddressInfo.port(),
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aAddressReuse, aLoopback, recvBufferSize,
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sendBufferSize))) {
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FireInternalError(__LINE__);
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return true;
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}
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nsCOMPtr<nsINetAddr> localAddr;
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mSocket->GetLocalAddr(getter_AddRefs(localAddr));
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nsCString addr;
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if (NS_FAILED(localAddr->GetAddress(addr))) {
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FireInternalError(__LINE__);
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return true;
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}
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uint16_t port;
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if (NS_FAILED(localAddr->GetPort(&port))) {
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FireInternalError(__LINE__);
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return true;
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}
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UDPSOCKET_LOG(("%s: SendCallbackOpened: %s:%u", __FUNCTION__, addr.get(), port));
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mozilla::Unused << SendCallbackOpened(UDPAddressInfo(addr, port));
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return true;
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}
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nsresult
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UDPSocketParent::BindInternal(const nsCString& aHost, const uint16_t& aPort,
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const bool& aAddressReuse, const bool& aLoopback,
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const uint32_t& recvBufferSize,
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const uint32_t& sendBufferSize)
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{
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nsresult rv;
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UDPSOCKET_LOG(("%s: [this=%p] %s:%u addressReuse: %d loopback: %d recvBufferSize: %lu, sendBufferSize: %lu",
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__FUNCTION__, this, nsCString(aHost).get(), aPort,
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aAddressReuse, aLoopback, recvBufferSize, sendBufferSize));
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nsCOMPtr<nsIUDPSocket> sock =
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do_CreateInstance("@mozilla.org/network/udp-socket;1", &rv);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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if (aHost.IsEmpty()) {
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rv = sock->Init(aPort, false, mPrincipal, aAddressReuse,
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/* optional_argc = */ 1);
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} else {
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PRNetAddr prAddr;
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PR_InitializeNetAddr(PR_IpAddrAny, aPort, &prAddr);
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PRStatus status = PR_StringToNetAddr(aHost.BeginReading(), &prAddr);
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if (status != PR_SUCCESS) {
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return NS_ERROR_FAILURE;
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}
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mozilla::net::NetAddr addr;
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PRNetAddrToNetAddr(&prAddr, &addr);
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rv = sock->InitWithAddress(&addr, mPrincipal, aAddressReuse,
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/* optional_argc = */ 1);
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}
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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nsCOMPtr<nsINetAddr> laddr;
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rv = sock->GetLocalAddr(getter_AddRefs(laddr));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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uint16_t family;
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rv = laddr->GetFamily(&family);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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if (family == nsINetAddr::FAMILY_INET) {
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rv = sock->SetMulticastLoopback(aLoopback);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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}
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// TODO: once bug 1252759 is fixed query buffer first and only increase
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if (recvBufferSize != 0) {
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rv = sock->SetRecvBufferSize(recvBufferSize);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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UDPSOCKET_LOG(("%s: [this=%p] %s:%u failed to set recv buffer size to: %lu", __FUNCTION__, this, nsCString(aHost).get(), aPort, recvBufferSize));
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}
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}
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if (sendBufferSize != 0) {
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rv = sock->SetSendBufferSize(sendBufferSize);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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UDPSOCKET_LOG(("%s: [this=%p] %s:%u failed to set send buffer size to: %lu", __FUNCTION__, this, nsCString(aHost).get(), aPort, sendBufferSize));
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}
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}
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// register listener
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rv = sock->AsyncListen(this);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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mSocket = sock;
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return NS_OK;
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}
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static nsCOMPtr<nsIEventTarget> GetSTSThread()
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{
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nsresult rv;
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nsCOMPtr<nsIEventTarget> sts_thread;
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sts_thread = do_GetService(NS_SOCKETTRANSPORTSERVICE_CONTRACTID, &rv);
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MOZ_ASSERT(NS_SUCCEEDED(rv));
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return sts_thread;
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}
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static void CheckSTSThread()
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{
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nsCOMPtr<nsIEventTarget> sts_thread = GetSTSThread();
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ASSERT_ON_THREAD(sts_thread);
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}
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// Proxy the Connect() request to the STS thread, since it may block and
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// should be done there.
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bool
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UDPSocketParent::RecvConnect(const UDPAddressInfo& aAddressInfo)
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{
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nsCOMPtr<nsIEventTarget> thread(NS_GetCurrentThread());
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NS_WARN_IF(NS_FAILED(GetSTSThread()->Dispatch(WrapRunnable(
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this,
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&UDPSocketParent::DoConnect,
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mSocket,
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thread,
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aAddressInfo),
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NS_DISPATCH_NORMAL)));
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return true;
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}
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void
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UDPSocketParent::DoSendConnectResponse(const UDPAddressInfo& aAddressInfo)
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{
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// can't use directly with WrapRunnable due to warnings
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mozilla::Unused << SendCallbackConnected(aAddressInfo);
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}
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void
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UDPSocketParent::SendConnectResponse(nsIEventTarget *aThread,
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const UDPAddressInfo& aAddressInfo)
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{
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NS_WARN_IF(NS_FAILED(aThread->Dispatch(WrapRunnable(
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this,
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&UDPSocketParent::DoSendConnectResponse,
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aAddressInfo),
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NS_DISPATCH_NORMAL)));
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}
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// Runs on STS thread
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void
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UDPSocketParent::DoConnect(nsCOMPtr<nsIUDPSocket>& aSocket,
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nsCOMPtr<nsIEventTarget>& aReturnThread,
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const UDPAddressInfo& aAddressInfo)
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{
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UDPSOCKET_LOG(("%s: %s:%u", __FUNCTION__, aAddressInfo.addr().get(), aAddressInfo.port()));
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if (NS_FAILED(ConnectInternal(aAddressInfo.addr(), aAddressInfo.port()))) {
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SendInternalError(aReturnThread, __LINE__);
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return;
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}
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CheckSTSThread();
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nsCOMPtr<nsINetAddr> localAddr;
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aSocket->GetLocalAddr(getter_AddRefs(localAddr));
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nsCString addr;
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if (NS_FAILED(localAddr->GetAddress(addr))) {
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SendInternalError(aReturnThread, __LINE__);
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return;
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}
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uint16_t port;
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if (NS_FAILED(localAddr->GetPort(&port))) {
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SendInternalError(aReturnThread, __LINE__);
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return;
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}
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UDPSOCKET_LOG(("%s: SendConnectResponse: %s:%u", __FUNCTION__, addr.get(), port));
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SendConnectResponse(aReturnThread, UDPAddressInfo(addr, port));
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}
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nsresult
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UDPSocketParent::ConnectInternal(const nsCString& aHost, const uint16_t& aPort)
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{
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nsresult rv;
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UDPSOCKET_LOG(("%s: %s:%u", __FUNCTION__, nsCString(aHost).get(), aPort));
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PRNetAddr prAddr;
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PR_InitializeNetAddr(PR_IpAddrAny, aPort, &prAddr);
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PRStatus status = PR_StringToNetAddr(aHost.BeginReading(), &prAddr);
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if (status != PR_SUCCESS) {
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return NS_ERROR_FAILURE;
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}
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mozilla::net::NetAddr addr;
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PRNetAddrToNetAddr(&prAddr, &addr);
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rv = mSocket->Connect(&addr);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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return NS_OK;
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}
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bool
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UDPSocketParent::RecvOutgoingData(const UDPData& aData,
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const UDPSocketAddr& aAddr)
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{
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MOZ_ASSERT(mSocket);
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nsresult rv;
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if (mFilter) {
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if (aAddr.type() != UDPSocketAddr::TNetAddr) {
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return true;
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}
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// TODO, Packet filter doesn't support input stream yet.
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if (aData.type() != UDPData::TArrayOfuint8_t) {
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return true;
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}
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bool allowed;
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const InfallibleTArray<uint8_t>& data(aData.get_ArrayOfuint8_t());
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rv = mFilter->FilterPacket(&aAddr.get_NetAddr(), data.Elements(),
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data.Length(), nsISocketFilter::SF_OUTGOING,
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&allowed);
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// Sending unallowed data, kill content.
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if (NS_WARN_IF(NS_FAILED(rv)) || !allowed) {
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return false;
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}
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}
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switch(aData.type()) {
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case UDPData::TArrayOfuint8_t:
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Send(aData.get_ArrayOfuint8_t(), aAddr);
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break;
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case UDPData::TInputStreamParams:
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Send(aData.get_InputStreamParams(), aAddr);
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break;
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default:
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MOZ_ASSERT(false, "Invalid data type!");
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return true;
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}
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return true;
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}
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void
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UDPSocketParent::Send(const InfallibleTArray<uint8_t>& aData,
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const UDPSocketAddr& aAddr)
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{
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nsresult rv;
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uint32_t count;
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switch(aAddr.type()) {
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case UDPSocketAddr::TUDPAddressInfo: {
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const UDPAddressInfo& addrInfo(aAddr.get_UDPAddressInfo());
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rv = mSocket->Send(addrInfo.addr(), addrInfo.port(),
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aData.Elements(), aData.Length(), &count);
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break;
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}
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case UDPSocketAddr::TNetAddr: {
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const NetAddr& addr(aAddr.get_NetAddr());
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rv = mSocket->SendWithAddress(&addr, aData.Elements(),
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aData.Length(), &count);
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break;
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}
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default:
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MOZ_ASSERT(false, "Invalid address type!");
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return;
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}
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if (NS_WARN_IF(NS_FAILED(rv)) || count == 0) {
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FireInternalError(__LINE__);
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}
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}
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void
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UDPSocketParent::Send(const InputStreamParams& aStream,
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const UDPSocketAddr& aAddr)
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{
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nsTArray<mozilla::ipc::FileDescriptor> fds;
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nsCOMPtr<nsIInputStream> stream = DeserializeInputStream(aStream, fds);
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if (NS_WARN_IF(!stream)) {
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return;
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}
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nsresult rv;
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switch(aAddr.type()) {
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case UDPSocketAddr::TUDPAddressInfo: {
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const UDPAddressInfo& addrInfo(aAddr.get_UDPAddressInfo());
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rv = mSocket->SendBinaryStream(addrInfo.addr(), addrInfo.port(), stream);
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break;
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}
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case UDPSocketAddr::TNetAddr: {
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const NetAddr& addr(aAddr.get_NetAddr());
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rv = mSocket->SendBinaryStreamWithAddress(&addr, stream);
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break;
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}
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default:
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MOZ_ASSERT(false, "Invalid address type!");
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return;
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}
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if (NS_FAILED(rv)) {
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FireInternalError(__LINE__);
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}
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}
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bool
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UDPSocketParent::RecvJoinMulticast(const nsCString& aMulticastAddress,
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const nsCString& aInterface)
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{
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nsresult rv = mSocket->JoinMulticast(aMulticastAddress, aInterface);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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FireInternalError(__LINE__);
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}
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return true;
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}
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bool
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UDPSocketParent::RecvLeaveMulticast(const nsCString& aMulticastAddress,
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const nsCString& aInterface)
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{
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nsresult rv = mSocket->LeaveMulticast(aMulticastAddress, aInterface);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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FireInternalError(__LINE__);
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}
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return true;
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}
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bool
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UDPSocketParent::RecvClose()
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{
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if (!mSocket) {
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return true;
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}
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nsresult rv = mSocket->Close();
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mSocket = nullptr;
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mozilla::Unused << NS_WARN_IF(NS_FAILED(rv));
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return true;
|
|
}
|
|
|
|
bool
|
|
UDPSocketParent::RecvRequestDelete()
|
|
{
|
|
mozilla::Unused << Send__delete__(this);
|
|
return true;
|
|
}
|
|
|
|
void
|
|
UDPSocketParent::ActorDestroy(ActorDestroyReason why)
|
|
{
|
|
MOZ_ASSERT(mIPCOpen);
|
|
mIPCOpen = false;
|
|
if (mSocket) {
|
|
mSocket->Close();
|
|
}
|
|
mSocket = nullptr;
|
|
}
|
|
|
|
// nsIUDPSocketListener
|
|
|
|
NS_IMETHODIMP
|
|
UDPSocketParent::OnPacketReceived(nsIUDPSocket* aSocket, nsIUDPMessage* aMessage)
|
|
{
|
|
// receiving packet from remote host, forward the message content to child process
|
|
if (!mIPCOpen) {
|
|
return NS_OK;
|
|
}
|
|
|
|
uint16_t port;
|
|
nsCString ip;
|
|
nsCOMPtr<nsINetAddr> fromAddr;
|
|
aMessage->GetFromAddr(getter_AddRefs(fromAddr));
|
|
fromAddr->GetPort(&port);
|
|
fromAddr->GetAddress(ip);
|
|
|
|
nsCString data;
|
|
aMessage->GetData(data);
|
|
|
|
const char* buffer = data.get();
|
|
uint32_t len = data.Length();
|
|
UDPSOCKET_LOG(("%s: %s:%u, length %u", __FUNCTION__, ip.get(), port, len));
|
|
|
|
if (mFilter) {
|
|
bool allowed;
|
|
mozilla::net::NetAddr addr;
|
|
fromAddr->GetNetAddr(&addr);
|
|
nsresult rv = mFilter->FilterPacket(&addr,
|
|
(const uint8_t*)buffer, len,
|
|
nsISocketFilter::SF_INCOMING,
|
|
&allowed);
|
|
// Receiving unallowed data, drop.
|
|
if (NS_WARN_IF(NS_FAILED(rv)) || !allowed) {
|
|
if (!allowed) {
|
|
UDPSOCKET_LOG(("%s: not allowed", __FUNCTION__));
|
|
}
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
FallibleTArray<uint8_t> fallibleArray;
|
|
if (!fallibleArray.InsertElementsAt(0, buffer, len, fallible)) {
|
|
FireInternalError(__LINE__);
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
InfallibleTArray<uint8_t> infallibleArray;
|
|
infallibleArray.SwapElements(fallibleArray);
|
|
|
|
// compose callback
|
|
mozilla::Unused << SendCallbackReceivedData(UDPAddressInfo(ip, port), infallibleArray);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
UDPSocketParent::OnStopListening(nsIUDPSocket* aSocket, nsresult aStatus)
|
|
{
|
|
// underlying socket is dead, send state update to child process
|
|
if (mIPCOpen) {
|
|
mozilla::Unused << SendCallbackClosed();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
UDPSocketParent::FireInternalError(uint32_t aLineNo)
|
|
{
|
|
if (!mIPCOpen) {
|
|
return;
|
|
}
|
|
|
|
mozilla::Unused << SendCallbackError(NS_LITERAL_CSTRING("Internal error"),
|
|
NS_LITERAL_CSTRING(__FILE__), aLineNo);
|
|
}
|
|
|
|
void
|
|
UDPSocketParent::SendInternalError(nsIEventTarget *aThread,
|
|
uint32_t aLineNo)
|
|
{
|
|
UDPSOCKET_LOG(("SendInternalError: %u", aLineNo));
|
|
NS_WARN_IF(NS_FAILED(aThread->Dispatch(WrapRunnable(
|
|
this,
|
|
&UDPSocketParent::FireInternalError,
|
|
aLineNo),
|
|
NS_DISPATCH_NORMAL)));
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|