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-rw-r--r--init/init.cpp153
1 files changed, 40 insertions, 113 deletions
diff --git a/init/init.cpp b/init/init.cpp
index 8e2da59d5..c457de668 100644
--- a/init/init.cpp
+++ b/init/init.cpp
@@ -81,6 +81,7 @@ using namespace std::string_literals;
using android::base::boot_clock;
using android::base::GetProperty;
using android::base::ReadFileToString;
+using android::base::SetProperty;
using android::base::StringPrintf;
using android::base::Timer;
using android::base::Trim;
@@ -91,8 +92,6 @@ namespace init {
static int property_triggers_enabled = 0;
-static char qemu[32];
-
static int signal_fd = -1;
static int property_fd = -1;
@@ -101,7 +100,6 @@ static std::string wait_prop_name;
static std::string wait_prop_value;
static std::string shutdown_command;
static bool do_shutdown = false;
-static bool load_debug_prop = false;
static std::unique_ptr<Subcontext> subcontext;
@@ -208,7 +206,7 @@ void property_changed(const std::string& name, const std::string& value) {
// to wait.
if (name == kColdBootDoneProp) {
auto time_waited = waiting_for_prop ? waiting_for_prop->duration().count() : 0;
- property_set("ro.boottime.init.cold_boot_wait", std::to_string(time_waited));
+ SetProperty("ro.boottime.init.cold_boot_wait", std::to_string(time_waited));
}
if (waiting_for_prop) {
@@ -364,85 +362,15 @@ static Result<void> SetupCgroupsAction(const BuiltinArguments&) {
return {};
}
-static void import_kernel_nv(const std::string& key, const std::string& value, bool for_emulator) {
- if (key.empty()) return;
-
- if (for_emulator) {
- // In the emulator, export any kernel option with the "ro.kernel." prefix.
- property_set("ro.kernel." + key, value);
- return;
- }
-
- if (key == "qemu") {
- strlcpy(qemu, value.c_str(), sizeof(qemu));
- } else if (android::base::StartsWith(key, "androidboot.")) {
- property_set("ro.boot." + key.substr(12), value);
- }
-}
-
static void export_oem_lock_status() {
if (!android::base::GetBoolProperty("ro.oem_unlock_supported", false)) {
return;
}
- import_kernel_cmdline(
- false, [](const std::string& key, const std::string& value, bool in_qemu) {
- if (key == "androidboot.verifiedbootstate") {
- property_set("ro.boot.flash.locked", value == "orange" ? "0" : "1");
- }
- });
-}
-
-static void export_kernel_boot_props() {
- constexpr const char* UNSET = "";
- struct {
- const char *src_prop;
- const char *dst_prop;
- const char *default_value;
- } prop_map[] = {
- { "ro.boot.serialno", "ro.serialno", UNSET, },
- { "ro.boot.mode", "ro.bootmode", "unknown", },
- { "ro.boot.baseband", "ro.baseband", "unknown", },
- { "ro.boot.bootloader", "ro.bootloader", "unknown", },
- { "ro.boot.hardware", "ro.hardware", "unknown", },
- { "ro.boot.revision", "ro.revision", "0", },
- };
- for (const auto& prop : prop_map) {
- std::string value = GetProperty(prop.src_prop, prop.default_value);
- if (value != UNSET)
- property_set(prop.dst_prop, value);
- }
-}
-
-static void process_kernel_dt() {
- if (!is_android_dt_value_expected("compatible", "android,firmware")) {
- return;
- }
-
- std::unique_ptr<DIR, int (*)(DIR*)> dir(opendir(get_android_dt_dir().c_str()), closedir);
- if (!dir) return;
-
- std::string dt_file;
- struct dirent *dp;
- while ((dp = readdir(dir.get())) != NULL) {
- if (dp->d_type != DT_REG || !strcmp(dp->d_name, "compatible") || !strcmp(dp->d_name, "name")) {
- continue;
+ ImportKernelCmdline([](const std::string& key, const std::string& value) {
+ if (key == "androidboot.verifiedbootstate") {
+ SetProperty("ro.boot.flash.locked", value == "orange" ? "0" : "1");
}
-
- std::string file_name = get_android_dt_dir() + dp->d_name;
-
- android::base::ReadFileToString(file_name, &dt_file);
- std::replace(dt_file.begin(), dt_file.end(), ',', '.');
-
- property_set("ro.boot."s + dp->d_name, dt_file);
- }
-}
-
-static void process_kernel_cmdline() {
- // The first pass does the common stuff, and finds if we are in qemu.
- // The second pass is only necessary for qemu to export all kernel params
- // as properties.
- import_kernel_cmdline(false, import_kernel_nv);
- if (qemu[0]) import_kernel_cmdline(true, import_kernel_nv);
+ });
}
static Result<void> property_enable_triggers_action(const BuiltinArguments& args) {
@@ -468,7 +396,7 @@ static void set_usb_controller() {
while ((dp = readdir(dir.get())) != nullptr) {
if (dp->d_name[0] == '.') continue;
- property_set("sys.usb.controller", dp->d_name);
+ SetProperty("sys.usb.controller", dp->d_name);
break;
}
}
@@ -591,7 +519,7 @@ static void RecordStageBoottimes(const boot_clock::time_point& second_stage_star
int64_t first_stage_start_time_ns = -1;
if (auto first_stage_start_time_str = getenv(kEnvFirstStageStartedAt);
first_stage_start_time_str) {
- property_set("ro.boottime.init", first_stage_start_time_str);
+ SetProperty("ro.boottime.init", first_stage_start_time_str);
android::base::ParseInt(first_stage_start_time_str, &first_stage_start_time_ns);
}
unsetenv(kEnvFirstStageStartedAt);
@@ -605,11 +533,11 @@ static void RecordStageBoottimes(const boot_clock::time_point& second_stage_star
if (selinux_start_time_ns == -1) return;
if (first_stage_start_time_ns == -1) return;
- property_set("ro.boottime.init.first_stage",
- std::to_string(selinux_start_time_ns - first_stage_start_time_ns));
- property_set("ro.boottime.init.selinux",
- std::to_string(second_stage_start_time.time_since_epoch().count() -
- selinux_start_time_ns));
+ SetProperty("ro.boottime.init.first_stage",
+ std::to_string(selinux_start_time_ns - first_stage_start_time_ns));
+ SetProperty("ro.boottime.init.selinux",
+ std::to_string(second_stage_start_time.time_since_epoch().count() -
+ selinux_start_time_ns));
}
void SendLoadPersistentPropertiesMessage() {
@@ -706,34 +634,27 @@ int SecondStageMain(int argc, char** argv) {
// Indicate that booting is in progress to background fw loaders, etc.
close(open("/dev/.booting", O_WRONLY | O_CREAT | O_CLOEXEC, 0000));
- property_init();
-
- // If arguments are passed both on the command line and in DT,
- // properties set in DT always have priority over the command-line ones.
- process_kernel_dt();
- process_kernel_cmdline();
-
- // Propagate the kernel variables to internal variables
- // used by init as well as the current required properties.
- export_kernel_boot_props();
-
- // Make the time that init stages started available for bootstat to log.
- RecordStageBoottimes(start_time);
-
- // Set libavb version for Framework-only OTA match in Treble build.
- const char* avb_version = getenv("INIT_AVB_VERSION");
- if (avb_version) property_set("ro.boot.avb_version", avb_version);
-
// See if need to load debug props to allow adb root, when the device is unlocked.
const char* force_debuggable_env = getenv("INIT_FORCE_DEBUGGABLE");
+ bool load_debug_prop = false;
if (force_debuggable_env && AvbHandle::IsDeviceUnlocked()) {
load_debug_prop = "true"s == force_debuggable_env;
}
-
- // Clean up our environment.
- unsetenv("INIT_AVB_VERSION");
unsetenv("INIT_FORCE_DEBUGGABLE");
+ // Umount the debug ramdisk so property service doesn't read .prop files from there, when it
+ // is not meant to.
+ if (!load_debug_prop) {
+ UmountDebugRamdisk();
+ }
+
+ PropertyInit();
+
+ // Umount the debug ramdisk after property service has read the .prop files when it means to.
+ if (load_debug_prop) {
+ UmountDebugRamdisk();
+ }
+
// Now set up SELinux for second stage.
SelinuxSetupKernelLogging();
SelabelInitialize();
@@ -746,16 +667,22 @@ int SecondStageMain(int argc, char** argv) {
InstallSignalFdHandler(&epoll);
- property_load_boot_defaults(load_debug_prop);
- UmountDebugRamdisk();
- fs_mgr_vendor_overlay_mount_all();
- export_oem_lock_status();
-
StartPropertyService(&property_fd);
if (auto result = epoll.RegisterHandler(property_fd, HandlePropertyFd); !result) {
LOG(FATAL) << "Could not register epoll handler for property fd: " << result.error();
}
+ // Make the time that init stages started available for bootstat to log.
+ RecordStageBoottimes(start_time);
+
+ // Set libavb version for Framework-only OTA match in Treble build.
+ if (const char* avb_version = getenv("INIT_AVB_VERSION"); avb_version != nullptr) {
+ SetProperty("ro.boot.avb_version", avb_version);
+ }
+ unsetenv("INIT_AVB_VERSION");
+
+ fs_mgr_vendor_overlay_mount_all();
+ export_oem_lock_status();
MountHandler mount_handler(&epoll);
set_usb_controller();
@@ -779,9 +706,9 @@ int SecondStageMain(int argc, char** argv) {
// Make the GSI status available before scripts start running.
if (android::gsi::IsGsiRunning()) {
- property_set("ro.gsid.image_running", "1");
+ SetProperty("ro.gsid.image_running", "1");
} else {
- property_set("ro.gsid.image_running", "0");
+ SetProperty("ro.gsid.image_running", "0");
}
am.QueueBuiltinAction(SetupCgroupsAction, "SetupCgroups");
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-04 02:32:48 +0000