// Copyright 2012 The Chromium Authors // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef COMPONENTS_NACL_ZYGOTE_NACL_FORK_DELEGATE_LINUX_H_ #define COMPONENTS_NACL_ZYGOTE_NACL_FORK_DELEGATE_LINUX_H_ #include #include #include #include "base/compiler_specific.h" #include "base/gtest_prod_util.h" #include "content/public/common/zygote/zygote_fork_delegate_linux.h" namespace base { struct LaunchOptions; } namespace nacl { // Appends any ZygoteForkDelegate instances needed by NaCl to |*delegates|. void AddNaClZygoteForkDelegates( std::vector>* delegates); // The NaClForkDelegate is created during Chrome linux zygote initialization, // and provides "fork()" functionality with NaCl specific process // characteristics (specifically address space layout) as an alternative to // forking the zygote. A new delegate is passed in as an argument to // ZygoteMain(). class NaClForkDelegate : public content::ZygoteForkDelegate { public: NaClForkDelegate(); NaClForkDelegate(const NaClForkDelegate&) = delete; NaClForkDelegate& operator=(const NaClForkDelegate&) = delete; ~NaClForkDelegate() override; void Init(int sandboxdesc, bool enable_layer1_sandbox) override; void InitialUMA(std::string* uma_name, int* uma_sample, int* uma_boundary_value) override; bool CanHelp(const std::string& process_type, std::string* uma_name, int* uma_sample, int* uma_boundary_value) override; pid_t Fork(const std::string& process_type, const std::vector& args, const std::vector& fds, const std::string& channel_id) override; bool GetTerminationStatus(pid_t pid, bool known_dead, base::TerminationStatus* status, int* exit_code) override; private: static void AddPassthroughEnvToOptions(base::LaunchOptions* options); // These values are reported via UMA and hence they become permanent // constants. Old values cannot be reused, only new ones added. enum NaClHelperStatus { kNaClHelperUnused = 0, kNaClHelperMissing = 1, kNaClHelperBootstrapMissing = 2, // kNaClHelperValgrind = 3, // Running in valgrind no longer supported. kNaClHelperLaunchFailed = 4, kNaClHelperAckFailed = 5, kNaClHelperSuccess = 6, kNaClHelperStatusBoundary // Must be one greater than highest value used. }; NaClHelperStatus status_; int fd_; FRIEND_TEST_ALL_PREFIXES(NaClForkDelegateLinuxTest, EnvPassthrough); }; } // namespace nacl #endif // COMPONENTS_NACL_ZYGOTE_NACL_FORK_DELEGATE_LINUX_H_