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-rw-r--r--init/ueventd.cpp33
-rw-r--r--init/ueventd_parser.cpp16
-rw-r--r--init/ueventd_parser.h6
-rw-r--r--init/ueventd_parser_test.cpp29
4 files changed, 62 insertions, 22 deletions
diff --git a/init/ueventd.cpp b/init/ueventd.cpp
index 2668b6575..aa0d46222 100644
--- a/init/ueventd.cpp
+++ b/init/ueventd.cpp
@@ -112,10 +112,12 @@ namespace init {
class ColdBoot {
public:
ColdBoot(UeventListener& uevent_listener,
- std::vector<std::unique_ptr<UeventHandler>>& uevent_handlers)
+ std::vector<std::unique_ptr<UeventHandler>>& uevent_handlers,
+ bool enable_parallel_restorecon)
: uevent_listener_(uevent_listener),
uevent_handlers_(uevent_handlers),
- num_handler_subprocesses_(std::thread::hardware_concurrency() ?: 4) {}
+ num_handler_subprocesses_(std::thread::hardware_concurrency() ?: 4),
+ enable_parallel_restorecon_(enable_parallel_restorecon) {}
void Run();
@@ -131,6 +133,8 @@ class ColdBoot {
std::vector<std::unique_ptr<UeventHandler>>& uevent_handlers_;
unsigned int num_handler_subprocesses_;
+ bool enable_parallel_restorecon_;
+
std::vector<Uevent> uevent_queue_;
std::set<pid_t> subprocess_pids_;
@@ -154,7 +158,6 @@ void ColdBoot::RestoreConHandler(unsigned int process_num, unsigned int total_pr
selinux_android_restorecon(dir.c_str(), SELINUX_ANDROID_RESTORECON_RECURSE);
}
- _exit(EXIT_SUCCESS);
}
void ColdBoot::GenerateRestoreCon(const std::string& directory) {
@@ -194,7 +197,10 @@ void ColdBoot::ForkSubProcesses() {
if (pid == 0) {
UeventHandlerMain(i, num_handler_subprocesses_);
- RestoreConHandler(i, num_handler_subprocesses_);
+ if (enable_parallel_restorecon_) {
+ RestoreConHandler(i, num_handler_subprocesses_);
+ }
+ _exit(EXIT_SUCCESS);
}
subprocess_pids_.emplace(pid);
@@ -239,14 +245,20 @@ void ColdBoot::Run() {
RegenerateUevents();
- selinux_android_restorecon("/sys", 0);
- selinux_android_restorecon("/sys/devices", 0);
- GenerateRestoreCon("/sys");
- // takes long time for /sys/devices, parallelize it
- GenerateRestoreCon("/sys/devices");
+ if (enable_parallel_restorecon_) {
+ selinux_android_restorecon("/sys", 0);
+ selinux_android_restorecon("/sys/devices", 0);
+ GenerateRestoreCon("/sys");
+ // takes long time for /sys/devices, parallelize it
+ GenerateRestoreCon("/sys/devices");
+ }
ForkSubProcesses();
+ if (!enable_parallel_restorecon_) {
+ selinux_android_restorecon("/sys", SELINUX_ANDROID_RESTORECON_RECURSE);
+ }
+
WaitForSubProcesses();
close(open(COLDBOOT_DONE, O_WRONLY | O_CREAT | O_CLOEXEC, 0000));
@@ -291,7 +303,8 @@ int ueventd_main(int argc, char** argv) {
UeventListener uevent_listener(ueventd_configuration.uevent_socket_rcvbuf_size);
if (access(COLDBOOT_DONE, F_OK) != 0) {
- ColdBoot cold_boot(uevent_listener, uevent_handlers);
+ ColdBoot cold_boot(uevent_listener, uevent_handlers,
+ ueventd_configuration.enable_parallel_restorecon);
cold_boot.Run();
}
diff --git a/init/ueventd_parser.cpp b/init/ueventd_parser.cpp
index aac3fe5c1..a099aedcf 100644
--- a/init/ueventd_parser.cpp
+++ b/init/ueventd_parser.cpp
@@ -88,18 +88,17 @@ Result<Success> ParseFirmwareDirectoriesLine(std::vector<std::string>&& args,
return Success();
}
-Result<Success> ParseModaliasHandlingLine(std::vector<std::string>&& args,
- bool* enable_modalias_handling) {
+Result<Success> ParseEnabledDisabledLine(std::vector<std::string>&& args, bool* feature) {
if (args.size() != 2) {
- return Error() << "modalias_handling lines take exactly one parameter";
+ return Error() << args[0] << " lines take exactly one parameter";
}
if (args[1] == "enabled") {
- *enable_modalias_handling = true;
+ *feature = true;
} else if (args[1] == "disabled") {
- *enable_modalias_handling = false;
+ *feature = false;
} else {
- return Error() << "modalias_handling takes either 'enabled' or 'disabled' as a parameter";
+ return Error() << args[0] << " takes either 'enabled' or 'disabled' as a parameter";
}
return Success();
@@ -220,11 +219,14 @@ UeventdConfiguration ParseConfig(const std::vector<std::string>& configs) {
std::bind(ParseFirmwareDirectoriesLine, _1,
&ueventd_configuration.firmware_directories));
parser.AddSingleLineParser("modalias_handling",
- std::bind(ParseModaliasHandlingLine, _1,
+ std::bind(ParseEnabledDisabledLine, _1,
&ueventd_configuration.enable_modalias_handling));
parser.AddSingleLineParser("uevent_socket_rcvbuf_size",
std::bind(ParseUeventSocketRcvbufSizeLine, _1,
&ueventd_configuration.uevent_socket_rcvbuf_size));
+ parser.AddSingleLineParser("parallel_restorecon",
+ std::bind(ParseEnabledDisabledLine, _1,
+ &ueventd_configuration.enable_parallel_restorecon));
for (const auto& config : configs) {
parser.ParseConfig(config);
diff --git a/init/ueventd_parser.h b/init/ueventd_parser.h
index d476decc9..b54dba88e 100644
--- a/init/ueventd_parser.h
+++ b/init/ueventd_parser.h
@@ -14,8 +14,7 @@
* limitations under the License.
*/
-#ifndef _INIT_UEVENTD_PARSER_H
-#define _INIT_UEVENTD_PARSER_H
+#pragma once
#include <string>
#include <vector>
@@ -32,11 +31,10 @@ struct UeventdConfiguration {
std::vector<std::string> firmware_directories;
bool enable_modalias_handling = false;
size_t uevent_socket_rcvbuf_size = 0;
+ bool enable_parallel_restorecon = false;
};
UeventdConfiguration ParseConfig(const std::vector<std::string>& configs);
} // namespace init
} // namespace android
-
-#endif
diff --git a/init/ueventd_parser_test.cpp b/init/ueventd_parser_test.cpp
index 9c1cedf8b..885e79ddd 100644
--- a/init/ueventd_parser_test.cpp
+++ b/init/ueventd_parser_test.cpp
@@ -147,6 +147,24 @@ uevent_socket_rcvbuf_size 8M
TestUeventdFile(ueventd_file, {{}, {}, {}, {}, false, 8 * 1024 * 1024});
}
+TEST(ueventd_parser, EnabledDisabledLines) {
+ auto ueventd_file = R"(
+modalias_handling enabled
+parallel_restorecon enabled
+modalias_handling disabled
+)";
+
+ TestUeventdFile(ueventd_file, {{}, {}, {}, {}, false, 0, true});
+
+ auto ueventd_file2 = R"(
+parallel_restorecon enabled
+modalias_handling enabled
+parallel_restorecon disabled
+)";
+
+ TestUeventdFile(ueventd_file2, {{}, {}, {}, {}, true, 0, false});
+}
+
TEST(ueventd_parser, AllTogether) {
auto ueventd_file = R"(
@@ -179,6 +197,8 @@ subsystem test_devpath_dirname
firmware_directories /more
uevent_socket_rcvbuf_size 6M
+modalias_handling enabled
+parallel_restorecon enabled
#ending comment
)";
@@ -211,7 +231,7 @@ uevent_socket_rcvbuf_size 6M
size_t uevent_socket_rcvbuf_size = 6 * 1024 * 1024;
TestUeventdFile(ueventd_file, {subsystems, sysfs_permissions, permissions, firmware_directories,
- false, uevent_socket_rcvbuf_size});
+ true, uevent_socket_rcvbuf_size, true});
}
// All of these lines are ill-formed, so test that there is 0 output.
@@ -230,6 +250,13 @@ uevent_socket_rcvbuf_size blah
subsystem #no name
+modalias_handling
+modalias_handling enabled enabled
+modalias_handling blah
+
+parallel_restorecon
+parallel_restorecon enabled enabled
+parallel_restorecon blah
)";
TestUeventdFile(ueventd_file, {});
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-15 20:28:56 +0000