This adds patches from Flathub to use the Flatpak sandbox (as the GUID sandbox is not compatible with Flatpak's own), removes dependencies on host services, and uses automatic detection of dependency locations (since dependencies are not necessarily found in /app even when building therein, as the buildroot is still in /usr).epel9
Yaakov Selkowitz
2 months ago
committed by
yselkowitz
parent
1e146bce28
commit
b73d675e71
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,86 @@
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From 997c9dc4160c468f26acb851eb65408f41e2a091 Mon Sep 17 00:00:00 2001
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From: Ryan Gonzalez <rymg19@gmail.com>
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Date: Tue, 25 Aug 2020 19:26:07 -0500
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Subject: [PATCH] flatpak: Adjust paths for the sandbox
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---
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chrome/common/BUILD.gn | 4 ++++
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chrome/common/chrome_paths.cc | 26 +++++++++++++++++++++++++-
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2 files changed, 29 insertions(+), 1 deletion(-)
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diff --git a/chrome/common/BUILD.gn b/chrome/common/BUILD.gn
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index 76cf6a5985990..4044c87b656c4 100644
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--- a/chrome/common/BUILD.gn
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+++ b/chrome/common/BUILD.gn
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@@ -642,6 +642,10 @@ static_library("constants") {
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"//third_party/widevine/cdm:headers",
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]
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}
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+
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+ if (is_linux) {
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+ deps += [ "//sandbox/linux:sandbox_services" ]
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+ }
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}
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# Use a static library here because many test binaries depend on this but don't
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diff --git a/chrome/common/chrome_paths.cc b/chrome/common/chrome_paths.cc
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index ec09803ffabcf..ecbc300b99e1d 100644
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--- a/chrome/common/chrome_paths.cc
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+++ b/chrome/common/chrome_paths.cc
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@@ -38,6 +38,10 @@
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#include "base/win/registry.h"
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#endif
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+#if BUILDFLAG(IS_LINUX)
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+#include "sandbox/linux/services/flatpak_sandbox.h"
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+#endif
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+
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#if BUILDFLAG(ENABLE_WIDEVINE)
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#include "third_party/widevine/cdm/widevine_cdm_common.h" // nogncheck
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#endif
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@@ -537,6 +541,14 @@ bool PathProvider(int key, base::FilePath* result) {
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break;
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#if BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_MAC) && !BUILDFLAG(IS_OPENBSD)
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case chrome::DIR_POLICY_FILES: {
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+#if defined(OS_LINUX)
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+ if (sandbox::FlatpakSandbox::GetInstance()->GetSandboxLevel() >
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+ sandbox::FlatpakSandbox::SandboxLevel::kNone) {
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+ cur = base::FilePath(
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+ FILE_PATH_LITERAL("/app/chromium/extensions/policies"));
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+ break;
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+ }
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+#endif
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cur = base::FilePath(policy::kPolicyPath);
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break;
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}
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@@ -557,7 +569,13 @@ bool PathProvider(int key, base::FilePath* result) {
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#endif
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#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
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case chrome::DIR_STANDALONE_EXTERNAL_EXTENSIONS: {
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- cur = base::FilePath(kFilepathSinglePrefExtensions);
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+ if (sandbox::FlatpakSandbox::GetInstance()->GetSandboxLevel() >
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+ sandbox::FlatpakSandbox::SandboxLevel::kNone) {
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+ cur = base::FilePath(
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+ FILE_PATH_LITERAL("/app/chromium/extensions/extensions"));
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+ } else {
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+ cur = base::FilePath(kFilepathSinglePrefExtensions);
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+ }
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break;
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}
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#endif
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@@ -604,6 +622,12 @@ bool PathProvider(int key, base::FilePath* result) {
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"/Library/Application Support/Chromium/NativeMessagingHosts"));
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#endif
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#else // BUILDFLAG(IS_MAC)
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+ if (sandbox::FlatpakSandbox::GetInstance()->GetSandboxLevel() >
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+ sandbox::FlatpakSandbox::SandboxLevel::kNone) {
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+ cur = base::FilePath(FILE_PATH_LITERAL(
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+ "/app/chromium/extensions/native-messaging-hosts"));
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+ break;
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+ }
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#if BUILDFLAG(GOOGLE_CHROME_BRANDING)
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cur = base::FilePath(
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FILE_PATH_LITERAL("/etc/opt/chrome/native-messaging-hosts"));
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--
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2.46.1
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@ -0,0 +1,326 @@
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From 0446b3432c90bbab893c7bde22a5e664e14753af Mon Sep 17 00:00:00 2001
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From: Ryan Gonzalez <rymg19@gmail.com>
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Date: Tue, 17 Nov 2020 13:00:39 -0600
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Subject: [PATCH] flatpak: Expose Widevine into the sandbox
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---
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.../zygote_host/zygote_host_impl_linux.cc | 54 +++++++++++++-
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sandbox/linux/services/flatpak_sandbox.cc | 74 ++++++++++++++-----
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sandbox/linux/services/flatpak_sandbox.h | 27 ++++++-
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3 files changed, 131 insertions(+), 24 deletions(-)
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diff --git a/content/browser/zygote_host/zygote_host_impl_linux.cc b/content/browser/zygote_host/zygote_host_impl_linux.cc
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index 1703fb6ade044..3e8eb87981230 100644
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--- a/content/browser/zygote_host/zygote_host_impl_linux.cc
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+++ b/content/browser/zygote_host/zygote_host_impl_linux.cc
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@@ -9,7 +9,10 @@
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#include <sys/types.h>
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#include "base/files/file_enumerator.h"
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+#include "base/files/file_util.h"
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#include "base/logging.h"
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+#include "base/nix/xdg_util.h"
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+#include "base/path_service.h"
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#include "base/posix/unix_domain_socket.h"
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#include "base/process/kill.h"
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#include "base/process/launch.h"
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@@ -18,9 +21,12 @@
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#include "base/types/fixed_array.h"
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#include "build/build_config.h"
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#include "build/chromeos_buildflags.h"
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+#include "chrome/common/chrome_paths.h" // nogncheck
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#include "content/common/zygote/zygote_commands_linux.h"
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#include "content/common/zygote/zygote_communication_linux.h"
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#include "content/common/zygote/zygote_handle_impl_linux.h"
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+#include "content/public/common/cdm_info.h"
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+#include "content/public/common/content_client.h"
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#include "content/public/common/zygote/zygote_handle.h"
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#include "sandbox/linux/services/credentials.h"
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#include "sandbox/linux/services/flatpak_sandbox.h"
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@@ -29,6 +35,7 @@
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#include "sandbox/linux/suid/common/sandbox.h"
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#include "sandbox/policy/linux/sandbox_linux.h"
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#include "sandbox/policy/switches.h"
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+#include "third_party/widevine/cdm/buildflags.h" // nogncheck
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#if BUILDFLAG(IS_CHROMEOS)
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#include "content/common/zygote/zygote_communication_linux.h"
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@@ -193,8 +200,51 @@ pid_t ZygoteHostImpl::LaunchZygote(
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if (is_sandboxed_zygote && use_namespace_sandbox_) {
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process = sandbox::NamespaceSandbox::LaunchProcess(*cmd_line, options);
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} else if (is_sandboxed_zygote && use_flatpak_sandbox_) {
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- process = sandbox::FlatpakSandbox::GetInstance()->LaunchProcess(*cmd_line,
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- options);
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+ sandbox::FlatpakSandbox::SpawnOptions spawn_options;
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+
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+#if BUILDFLAG(ENABLE_LIBRARY_CDMS)
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+ // Expose the CDM paths into the sandbox. This is similar to PreSandboxInit
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+ // in content_main_runner_impl.cc.
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+ std::vector<CdmInfo> cdms;
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+ GetContentClient()->AddContentDecryptionModules(&cdms, nullptr);
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+ for (const auto& cdm : cdms) {
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+ if (!spawn_options.ExposePathRo(cdm.path)) {
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+ LOG(ERROR) << "Failed to expose CDM module";
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+ }
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+ }
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+#endif
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+
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+#if BUILDFLAG(ENABLE_WIDEVINE_CDM_COMPONENT)
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+ // Make sure we also expose the full Widevine CDM folder so it can be
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+ // detected.
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+ // TODO: Remove the explicit dependencies on chrome::.
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+ base::FilePath widevine_cdm_path;
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+ if (!base::PathService::Get(chrome::DIR_COMPONENT_UPDATED_WIDEVINE_CDM,
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+ &widevine_cdm_path)) {
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+ LOG(ERROR) << "Failed to get Widevine CDM folder for sandbox forwarding";
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+ }
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+
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+ LOG(INFO) << "Widevine CDM path IS: " << widevine_cdm_path;
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+
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+ if (!widevine_cdm_path.empty() && base::PathExists(widevine_cdm_path)) {
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+ if (!spawn_options.ExposePathRo(widevine_cdm_path)) {
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+ LOG(ERROR) << "Failed to expose updated Widevine CDM path";
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+ }
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+ }
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+
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+ // The Widevine data is found relative to $XDG_CONFIG_HOME, which is not set
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+ // by default when running a sandboxed process.
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+ auto env = base::Environment::Create();
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+ base::FilePath xdgConfigHome = base::nix::GetXDGDirectory(
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+ env.get(), base::nix::kXdgConfigHomeEnvVar, nullptr);
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+ if (!xdgConfigHome.empty()) {
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+ options.environment[base::nix::kXdgConfigHomeEnvVar] =
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+ xdgConfigHome.value();
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+ }
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+#endif
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+
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+ process = sandbox::FlatpakSandbox::GetInstance()->LaunchProcess(
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+ *cmd_line, options, spawn_options);
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} else {
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process = base::LaunchProcess(*cmd_line, options);
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}
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diff --git a/sandbox/linux/services/flatpak_sandbox.cc b/sandbox/linux/services/flatpak_sandbox.cc
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index 2a915a5b9fa11..ed8d4c0556f63 100644
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--- a/sandbox/linux/services/flatpak_sandbox.cc
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+++ b/sandbox/linux/services/flatpak_sandbox.cc
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@@ -4,6 +4,7 @@
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#include "sandbox/linux/services/flatpak_sandbox.h"
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+#include <fcntl.h>
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#include <signal.h>
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#include <sstream>
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#include <string>
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@@ -92,6 +93,18 @@ enum FlatpakSpawnSandboxFlags {
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kFlatpakSpawnSandbox_ShareA11yBus = 1 << 4,
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};
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+bool FlatpakSandbox::SpawnOptions::ExposePathRo(base::FilePath path) {
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+ base::ScopedFD fd(
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+ HANDLE_EINTR(open(path.value().c_str(), O_PATH | O_NOFOLLOW)));
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+ if (!fd.is_valid()) {
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+ PLOG(ERROR) << "Failed to expose path " << path;
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+ return false;
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+ }
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+
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+ sandbox_expose_ro.push_back(std::move(fd));
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+ return true;
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+}
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+
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FlatpakSandbox::FlatpakSandbox()
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: bus_thread_("FlatpakPortalBus"), process_info_cv_(&process_info_lock_) {}
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@@ -168,8 +181,9 @@ bool FlatpakSandbox::IsPidSandboxed(base::ProcessId relative_pid) {
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base::Process FlatpakSandbox::LaunchProcess(
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const base::CommandLine& cmdline,
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- const base::LaunchOptions& launch_options) {
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- base::ProcessId external_pid = Spawn(cmdline, launch_options);
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+ const base::LaunchOptions& launch_options,
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+ const SpawnOptions& spawn_options /*= {}*/) {
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+ base::ProcessId external_pid = Spawn(cmdline, launch_options, spawn_options);
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if (external_pid == base::kNullProcessId) {
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return base::Process();
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}
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@@ -363,9 +377,9 @@ void FlatpakSandbox::OnSpawnExitedSignal(dbus::Signal* signal) {
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process_info_cv_.Broadcast();
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}
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-base::ProcessId FlatpakSandbox::Spawn(
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- const base::CommandLine& cmdline,
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- const base::LaunchOptions& launch_options) {
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+base::ProcessId FlatpakSandbox::Spawn(const base::CommandLine& cmdline,
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+ const base::LaunchOptions& launch_options,
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+ const SpawnOptions& spawn_options) {
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base::ScopedBlockingCall scoped_blocking_call(FROM_HERE,
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base::BlockingType::MAY_BLOCK);
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base::ScopedAllowBaseSyncPrimitives allow_wait;
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@@ -391,24 +405,26 @@ base::ProcessId FlatpakSandbox::Spawn(
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|
FROM_HERE,
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base::BindOnce(&FlatpakSandbox::SpawnOnBusThread, base::Unretained(this),
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base::Unretained(&external_pid), base::Unretained(&event),
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- cmdline, launch_options));
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+ base::Unretained(&cmdline),
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+ base::Unretained(&launch_options),
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+ base::Unretained(&spawn_options)));
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event.Wait();
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return external_pid;
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}
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-void FlatpakSandbox::SpawnOnBusThread(
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- base::ProcessId* out_external_pid,
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- base::WaitableEvent* event,
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|
- const base::CommandLine& cmdline,
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|
- const base::LaunchOptions& launch_options) {
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|
+void FlatpakSandbox::SpawnOnBusThread(base::ProcessId* out_external_pid,
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+ base::WaitableEvent* event,
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+ const base::CommandLine* cmdline,
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|
+ const base::LaunchOptions* launch_options,
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+ const SpawnOptions* spawn_options) {
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|
dbus::ObjectProxy* object_proxy = GetPortalObjectProxy();
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|
dbus::MethodCall method_call(kFlatpakPortalInterfaceName, "Spawn");
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|
dbus::MessageWriter writer(&method_call);
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|
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|
const base::FilePath& current_directory =
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|
- !launch_options.current_directory.empty()
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|
- ? launch_options.current_directory
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+ !launch_options->current_directory.empty()
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+ ? launch_options->current_directory
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|
// Change to /app since it's guaranteed to always be present in
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|
// the sandbox.
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|
: kFlatpakAppPath;
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|
@@ -417,7 +433,7 @@ void FlatpakSandbox::SpawnOnBusThread(
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|
dbus::MessageWriter argv_writer(nullptr);
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|
writer.OpenArray("ay", &argv_writer);
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|
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|
- for (const std::string& arg : cmdline.argv()) {
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+ for (const std::string& arg : cmdline->argv()) {
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|
WriteStringAsByteArray(&argv_writer, arg);
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}
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|
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@@ -439,7 +455,7 @@ void FlatpakSandbox::SpawnOnBusThread(
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|
WriteFdPairMap(&fds_writer, STDOUT_FILENO, STDOUT_FILENO);
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|
WriteFdPairMap(&fds_writer, STDERR_FILENO, STDERR_FILENO);
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|
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|
- for (const auto& pair : launch_options.fds_to_remap) {
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|
+ for (const auto& pair : launch_options->fds_to_remap) {
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|
WriteFdPairMap(&fds_writer, pair.first, pair.second);
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}
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@@ -448,7 +464,7 @@ void FlatpakSandbox::SpawnOnBusThread(
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dbus::MessageWriter env_writer(nullptr);
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writer.OpenArray("{ss}", &env_writer);
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- for (const auto& pair : launch_options.environment) {
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+ for (const auto& pair : launch_options->environment) {
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dbus::MessageWriter entry_writer(nullptr);
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env_writer.OpenDictEntry(&entry_writer);
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|
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@@ -472,11 +488,11 @@ void FlatpakSandbox::SpawnOnBusThread(
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|
#else
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|
#endif
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|
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- if (launch_options.clear_environment) {
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|
+ if (launch_options->clear_environment) {
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|
spawn_flags |= kFlatpakSpawn_ClearEnvironment;
|
||||||
|
}
|
||||||
|
|
||||||
|
- if (launch_options.kill_on_parent_death) {
|
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|
+ if (launch_options->kill_on_parent_death) {
|
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|
spawn_flags |= kFlatpakSpawn_WatchBus;
|
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|
}
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|
|
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|
@@ -485,6 +501,28 @@ void FlatpakSandbox::SpawnOnBusThread(
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|
dbus::MessageWriter options_writer(nullptr);
|
||||||
|
writer.OpenArray("{sv}", &options_writer);
|
||||||
|
|
||||||
|
+ if (!spawn_options->sandbox_expose_ro.empty()) {
|
||||||
|
+ dbus::MessageWriter entry_writer(nullptr);
|
||||||
|
+ options_writer.OpenDictEntry(&entry_writer);
|
||||||
|
+
|
||||||
|
+ entry_writer.AppendString("sandbox-expose-fd-ro");
|
||||||
|
+
|
||||||
|
+ dbus::MessageWriter variant_writer(nullptr);
|
||||||
|
+ entry_writer.OpenVariant("ah", &variant_writer);
|
||||||
|
+
|
||||||
|
+ dbus::MessageWriter fds_writer(nullptr);
|
||||||
|
+ variant_writer.OpenArray("h", &fds_writer);
|
||||||
|
+
|
||||||
|
+ for (const base::ScopedFD& fd : spawn_options->sandbox_expose_ro) {
|
||||||
|
+ CHECK(fd.is_valid()) << "Invalid spawn expose fd";
|
||||||
|
+ fds_writer.AppendFileDescriptor(fd.get());
|
||||||
|
+ }
|
||||||
|
+
|
||||||
|
+ variant_writer.CloseContainer(&fds_writer);
|
||||||
|
+ entry_writer.CloseContainer(&variant_writer);
|
||||||
|
+ options_writer.CloseContainer(&entry_writer);
|
||||||
|
+ }
|
||||||
|
+
|
||||||
|
if (sandbox_flags != 0) {
|
||||||
|
dbus::MessageWriter entry_writer(nullptr);
|
||||||
|
options_writer.OpenDictEntry(&entry_writer);
|
||||||
|
diff --git a/sandbox/linux/services/flatpak_sandbox.h b/sandbox/linux/services/flatpak_sandbox.h
|
||||||
|
index 167bbc85945ad..de8e7165b4573 100644
|
||||||
|
--- a/sandbox/linux/services/flatpak_sandbox.h
|
||||||
|
+++ b/sandbox/linux/services/flatpak_sandbox.h
|
||||||
|
@@ -9,6 +9,8 @@
|
||||||
|
#include "base/compiler_specific.h"
|
||||||
|
#include "base/containers/flat_map.h"
|
||||||
|
#include "base/containers/flat_set.h"
|
||||||
|
+#include "base/files/file_path.h"
|
||||||
|
+#include "base/files/scoped_file.h"
|
||||||
|
#include "base/no_destructor.h"
|
||||||
|
#include "base/process/kill.h"
|
||||||
|
#include "base/process/launch.h"
|
||||||
|
@@ -34,6 +36,20 @@ namespace sandbox {
|
||||||
|
// it is known inside the sandbox's PID namespace.
|
||||||
|
class SANDBOX_EXPORT FlatpakSandbox {
|
||||||
|
public:
|
||||||
|
+ class SpawnOptions {
|
||||||
|
+ public:
|
||||||
|
+ SpawnOptions() = default;
|
||||||
|
+ SpawnOptions(const SpawnOptions& other) = delete;
|
||||||
|
+ SpawnOptions(SpawnOptions&& other) = delete;
|
||||||
|
+
|
||||||
|
+ bool ExposePathRo(base::FilePath path);
|
||||||
|
+
|
||||||
|
+ private:
|
||||||
|
+ friend class FlatpakSandbox;
|
||||||
|
+
|
||||||
|
+ std::vector<base::ScopedFD> sandbox_expose_ro;
|
||||||
|
+ };
|
||||||
|
+
|
||||||
|
static FlatpakSandbox* GetInstance();
|
||||||
|
|
||||||
|
// Represents the level of sandboxing inside a Flatpak. kNone means this is
|
||||||
|
@@ -55,7 +71,8 @@ class SANDBOX_EXPORT FlatpakSandbox {
|
||||||
|
// GetRelativePid. This is the reason why a vanilla ProcessId is returned
|
||||||
|
// rather than a base::Process instance.
|
||||||
|
base::Process LaunchProcess(const base::CommandLine& cmdline,
|
||||||
|
- const base::LaunchOptions& launch_options);
|
||||||
|
+ const base::LaunchOptions& launch_options,
|
||||||
|
+ const SpawnOptions& spawn_options = {});
|
||||||
|
|
||||||
|
// Indefinitely waits for the given process and fills the exit code pointer
|
||||||
|
// if given and non-null. Returns false on wait failure.
|
||||||
|
@@ -84,11 +101,13 @@ class SANDBOX_EXPORT FlatpakSandbox {
|
||||||
|
void OnSpawnExitedSignal(dbus::Signal* signal);
|
||||||
|
|
||||||
|
base::ProcessId Spawn(const base::CommandLine& cmdline,
|
||||||
|
- const base::LaunchOptions& launch_options);
|
||||||
|
+ const base::LaunchOptions& launch_options,
|
||||||
|
+ const SpawnOptions& spawn_options);
|
||||||
|
void SpawnOnBusThread(base::ProcessId* out_external_pid,
|
||||||
|
base::WaitableEvent* event,
|
||||||
|
- const base::CommandLine& cmdline,
|
||||||
|
- const base::LaunchOptions& launch_options);
|
||||||
|
+ const base::CommandLine* cmdline,
|
||||||
|
+ const base::LaunchOptions* launch_options,
|
||||||
|
+ const SpawnOptions* spawn_options);
|
||||||
|
void OnSpawnResponse(base::ProcessId* out_external_pid,
|
||||||
|
base::WaitableEvent* event,
|
||||||
|
dbus::Response* response,
|
||||||
|
--
|
||||||
|
2.46.1
|
||||||
|
|
||||||
Loading…
Reference in new issue