blob: 4a7a3373be1bcba8c4ef313552abe5474cce6d26 [file] [log] [blame]
/*
Copyright 2012-2020 TeamWin
This file is part of TWRP/TeamWin Recovery Project.
TWRP is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
TWRP is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with TWRP. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <sys/stat.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <signal.h>
#include "gui/twmsg.h"
#include "cutils/properties.h"
#ifdef ANDROID_RB_RESTART
#include "cutils/android_reboot.h"
#else
#include <sys/reboot.h>
#endif
extern "C" {
#include "gui/gui.h"
}
#include "set_metadata.h"
#include "gui/gui.hpp"
#include "gui/pages.hpp"
#include "gui/objects.hpp"
#include "twcommon.h"
#include "twrp-functions.hpp"
#include "data.hpp"
#include "kernel_module_loader.hpp"
#include "partitions.hpp"
#ifdef __ANDROID_API_N__
#include <android-base/strings.h>
#else
#include <base/strings.h>
#endif
#include "openrecoveryscript.hpp"
#include "variables.h"
#include "startupArgs.hpp"
#include "twrpAdbBuFifo.hpp"
#ifdef TW_USE_NEW_MINADBD
// #include "minadbd/minadbd.h"
#else
extern "C" {
#include "minadbd21/adb.h"
}
#endif
//extern int adb_server_main(int is_daemon, int server_port, int /* reply_fd */);
TWPartitionManager PartitionManager;
int Log_Offset;
bool datamedia;
static void Print_Prop(const char *key, const char *name, void *cookie) {
printf("%s=%s\n", key, name);
}
static void Decrypt_Page(bool SkipDecryption, bool datamedia) {
// Offer to decrypt if the device is encrypted
if (DataManager::GetIntValue(TW_IS_ENCRYPTED) != 0) {
if (SkipDecryption) {
LOGINFO("Skipping decryption\n");
PartitionManager.Update_System_Details();
} else if (DataManager::GetIntValue(TW_CRYPTO_PWTYPE) != 0) {
LOGINFO("Is encrypted, do decrypt page first\n");
if (DataManager::GetIntValue(TW_IS_FBE))
DataManager::SetValue("tw_crypto_user_id", "0");
if (gui_startPage("decrypt", 1, 1) != 0) {
LOGERR("Failed to start decrypt GUI page.\n");
}
}
} else if (datamedia) {
PartitionManager.Update_System_Details();
if (tw_get_default_metadata(DataManager::GetSettingsStoragePath().c_str()) != 0) {
LOGINFO("Failed to get default contexts and file mode for storage files.\n");
} else {
LOGINFO("Got default contexts and file mode for storage files.\n");
}
}
}
static void process_fastbootd_mode() {
LOGINFO("starting fastboot\n");
#ifdef TW_LOAD_VENDOR_MODULES
printf("=> Linking mtab\n");
symlink("/proc/mounts", "/etc/mtab");
std::string fstab_filename = "/etc/twrp.fstab";
if (!TWFunc::Path_Exists(fstab_filename)) {
fstab_filename = "/etc/recovery.fstab";
}
printf("=> Processing %s\n", fstab_filename.c_str());
if (!PartitionManager.Process_Fstab(fstab_filename, 1, false)) {
LOGERR("Failing out of recovery due to problem with fstab.\n");
return;
}
TWPartition* ven = PartitionManager.Find_Partition_By_Path("/vendor");
PartitionManager.Setup_Super_Devices();
PartitionManager.Prepare_Super_Volume(ven);
KernelModuleLoader::Load_Vendor_Modules();
if (android::base::GetBoolProperty("ro.virtual_ab.enabled", false)) {
PartitionManager.Unmap_Super_Devices();
}
#endif
gui_msg(Msg("fastboot_console_msg=Entered Fastboot mode..."));
if (gui_startPage("fastboot", 1, 1) != 0) {
LOGERR("Failed to start fastbootd page.\n");
}
}
static void process_recovery_mode(twrpAdbBuFifo* adb_bu_fifo, bool skip_decryption) {
char crash_prop_val[PROPERTY_VALUE_MAX];
int crash_counter;
std::string cmdline;
if (TWFunc::read_file("/proc/cmdline", cmdline) != 0) {
LOGINFO("Unable to read cmdline for fastboot mode\n");
}
property_get("twrp.crash_counter", crash_prop_val, "-1");
crash_counter = atoi(crash_prop_val) + 1;
snprintf(crash_prop_val, sizeof(crash_prop_val), "%d", crash_counter);
property_set("twrp.crash_counter", crash_prop_val);
if (crash_counter == 0) {
property_list(Print_Prop, NULL);
printf("\n");
} else {
printf("twrp.crash_counter=%d\n", crash_counter);
}
printf("=> Linking mtab\n");
symlink("/proc/mounts", "/etc/mtab");
std::string fstab_filename = "/etc/twrp.fstab";
if (!TWFunc::Path_Exists(fstab_filename)) {
fstab_filename = "/etc/recovery.fstab";
}
printf("=> Processing %s\n", fstab_filename.c_str());
if (!PartitionManager.Process_Fstab(fstab_filename, 1, true)) {
LOGERR("Failing out of recovery due to problem with fstab.\n");
return;
}
#ifdef TW_LOAD_VENDOR_MODULES
bool fastboot_mode = cmdline.find("twrpfastboot=1") != std::string::npos;
if (fastboot_mode)
KernelModuleLoader::Load_Vendor_Modules();
else
KernelModuleLoader::Load_Vendor_Modules();
#endif
// We are doing this here to allow super partition to be set up prior to overriding properties
#if defined(TW_INCLUDE_LIBRESETPROP) && defined(TW_OVERRIDE_SYSTEM_PROPS)
if (!PartitionManager.Mount_By_Path(PartitionManager.Get_Android_Root_Path(), true)) {
LOGERR("Unable to mount %s\n", PartitionManager.Get_Android_Root_Path().c_str());
} else {
stringstream override_props(EXPAND(TW_OVERRIDE_SYSTEM_PROPS));
string current_prop;
std::vector<std::string> build_prop_list = {"build.prop"};
#ifdef TW_SYSTEM_BUILD_PROP_ADDITIONAL_PATHS
std::vector<std::string> additional_build_prop_list = TWFunc::Split_String(TW_SYSTEM_BUILD_PROP_ADDITIONAL_PATHS, ";");
build_prop_list.insert(build_prop_list.end(), additional_build_prop_list.begin(), additional_build_prop_list.end());
#endif
while (getline(override_props, current_prop, ';')) {
string other_prop;
if (current_prop.find("=") != string::npos) {
other_prop = current_prop.substr(current_prop.find("=") + 1);
current_prop = current_prop.substr(0, current_prop.find("="));
} else {
other_prop = current_prop;
}
other_prop = android::base::Trim(other_prop);
current_prop = android::base::Trim(current_prop);
for (auto&& prop_file:build_prop_list) {
string sys_val = TWFunc::System_Property_Get(other_prop, PartitionManager, PartitionManager.Get_Android_Root_Path().c_str(), prop_file);
if (!sys_val.empty()) {
LOGINFO("Overriding %s with value: \"%s\" from system property %s from %s\n", current_prop.c_str(), sys_val.c_str(), other_prop.c_str(), prop_file.c_str());
int error = TWFunc::Property_Override(current_prop, sys_val);
if (error) {
LOGERR("Failed overriding property %s, error_code: %d\n", current_prop.c_str(), error);
}
break;
} else {
LOGINFO("Not overriding %s with empty value from system property %s from %s\n", current_prop.c_str(), other_prop.c_str(), prop_file.c_str());
}
}
}
PartitionManager.UnMount_By_Path(PartitionManager.Get_Android_Root_Path(), false);
}
#endif
// Check for and run startup script if script exists
TWFunc::check_and_run_script("/system/bin/runatboot.sh", "boot");
TWFunc::check_and_run_script("/system/bin/postrecoveryboot.sh", "recovery");
#ifdef TW_INCLUDE_INJECTTWRP
// Back up TWRP Ramdisk if needed:
TWPartition* Boot = PartitionManager.Find_Partition_By_Path("/boot");
LOGINFO("Backing up TWRP ramdisk...\n");
if (Boot == NULL || Boot->Current_File_System != "emmc")
TWFunc::Exec_Cmd("injecttwrp --backup /tmp/backup_recovery_ramdisk.img");
else {
string injectcmd = "injecttwrp --backup /tmp/backup_recovery_ramdisk.img bd=" + Boot->Actual_Block_Device;
TWFunc::Exec_Cmd(injectcmd);
}
LOGINFO("Backup of TWRP ramdisk done.\n");
#endif
Decrypt_Page(skip_decryption, datamedia);
// Check for and load custom theme if present
TWFunc::check_selinux_support();
gui_loadCustomResources();
PartitionManager.Output_Partition_Logging();
// Fixup the RTC clock on devices which require it
if (crash_counter == 0)
TWFunc::Fixup_Time_On_Boot();
DataManager::LoadTWRPFolderInfo();
DataManager::ReadSettingsFile();
// Run any outstanding OpenRecoveryScript
std::string cacheDir = TWFunc::get_log_dir();
if (cacheDir == DATA_LOGS_DIR)
cacheDir = "/data/cache";
std::string orsFile = cacheDir + "/recovery/openrecoveryscript";
if ((DataManager::GetIntValue(TW_IS_ENCRYPTED) == 0 || skip_decryption) && (TWFunc::Path_Exists(SCRIPT_FILE_TMP) || TWFunc::Path_Exists(orsFile))) {
OpenRecoveryScript::Run_OpenRecoveryScript();
}
#ifdef TW_HAS_MTP
char mtp_crash_check[PROPERTY_VALUE_MAX];
property_get("mtp.crash_check", mtp_crash_check, "0");
if (DataManager::GetIntValue("tw_mtp_enabled")
&& !strcmp(mtp_crash_check, "0") && !crash_counter
&& (!DataManager::GetIntValue(TW_IS_ENCRYPTED) || DataManager::GetIntValue(TW_IS_DECRYPTED))) {
property_set("mtp.crash_check", "1");
LOGINFO("Starting MTP\n");
if (!PartitionManager.Enable_MTP())
PartitionManager.Disable_MTP();
else
gui_msg("mtp_enabled=MTP Enabled");
property_set("mtp.crash_check", "0");
} else if (strcmp(mtp_crash_check, "0")) {
gui_warn("mtp_crash=MTP Crashed, not starting MTP on boot.");
DataManager::SetValue("tw_mtp_enabled", 0);
PartitionManager.Disable_MTP();
} else if (crash_counter == 1) {
LOGINFO("TWRP crashed; disabling MTP as a precaution.\n");
PartitionManager.Disable_MTP();
}
#endif
#ifndef TW_OEM_BUILD
// Check if system has never been changed
TWPartition* sys = PartitionManager.Find_Partition_By_Path(PartitionManager.Get_Android_Root_Path());
TWPartition* ven = PartitionManager.Find_Partition_By_Path("/vendor");
if (sys) {
if (sys->Get_Super_Status()) {
#ifdef TW_INCLUDE_CRYPTO
std::string recoveryLogDir(DATA_LOGS_DIR);
recoveryLogDir += "/recovery";
if (!TWFunc::Path_Exists(recoveryLogDir)) {
bool created = PartitionManager.Recreate_Logs_Dir();
if (!created)
LOGERR("Unable to create log directory for TWRP\n");
}
DataManager::ReadSettingsFile();
#endif
} else {
if ((DataManager::GetIntValue("tw_mount_system_ro") == 0 && sys->Check_Lifetime_Writes() == 0) || DataManager::GetIntValue("tw_mount_system_ro") == 2) {
if (DataManager::GetIntValue("tw_never_show_system_ro_page") == 0) {
DataManager::SetValue("tw_back", "main");
if (gui_startPage("system_readonly", 1, 1) != 0) {
LOGERR("Failed to start system_readonly GUI page.\n");
}
} else if (DataManager::GetIntValue("tw_mount_system_ro") == 0) {
sys->Change_Mount_Read_Only(false);
if (ven)
ven->Change_Mount_Read_Only(false);
}
} else if (DataManager::GetIntValue("tw_mount_system_ro") == 1) {
// Do nothing, user selected to leave system read only
} else {
sys->Change_Mount_Read_Only(false);
if (ven)
ven->Change_Mount_Read_Only(false);
}
}
}
#endif
TWFunc::Update_Log_File();
adb_bu_fifo->threadAdbBuFifo();
#ifndef TW_OEM_BUILD
// Disable flashing of stock recovery
TWFunc::Disable_Stock_Recovery_Replace();
#endif
}
static void reboot() {
gui_msg(Msg("rebooting=Rebooting..."));
TWFunc::Update_Log_File();
string Reboot_Arg;
DataManager::GetValue("tw_reboot_arg", Reboot_Arg);
if (Reboot_Arg == "recovery")
TWFunc::tw_reboot(rb_recovery);
else if (Reboot_Arg == "poweroff")
TWFunc::tw_reboot(rb_poweroff);
else if (Reboot_Arg == "bootloader")
TWFunc::tw_reboot(rb_bootloader);
else if (Reboot_Arg == "download")
TWFunc::tw_reboot(rb_download);
else if (Reboot_Arg == "edl")
TWFunc::tw_reboot(rb_edl);
else if (Reboot_Arg == "fastboot")
TWFunc::tw_reboot(rb_fastboot);
else
TWFunc::tw_reboot(rb_system);
}
int main(int argc, char **argv) {
// Recovery needs to install world-readable files, so clear umask
// set by init
umask(0);
Log_Offset = 0;
// Set up temporary log file (/tmp/recovery.log)
freopen(TMP_LOG_FILE, "a", stdout);
setbuf(stdout, NULL);
freopen(TMP_LOG_FILE, "a", stderr);
setbuf(stderr, NULL);
signal(SIGPIPE, SIG_IGN);
// Handle ADB sideload
if (argc == 3 && strcmp(argv[1], "--adbd") == 0) {
property_set("ctl.stop", "adbd");
#ifdef TW_USE_NEW_MINADBD
//adb_server_main(0, DEFAULT_ADB_PORT, -1); TODO fix this for android8
// minadbd_main();
#else
adb_main(argv[2]);
#endif
return 0;
}
#ifdef RECOVERY_SDCARD_ON_DATA
datamedia = true;
#endif
property_set("ro.twrp.boot", "1");
property_set("ro.twrp.version", TW_VERSION_STR);
time_t StartupTime = time(NULL);
printf("Starting TWRP %s-%s on %s (pid %d)\n", TW_VERSION_STR, TW_GIT_REVISION, ctime(&StartupTime), getpid());
// Load default values to set DataManager constants and handle ifdefs
DataManager::SetDefaultValues();
printf("Starting the UI...\n");
gui_init();
// Load up all the resources
gui_loadResources();
startupArgs startup;
startup.parse(&argc, &argv);
twrpAdbBuFifo *adb_bu_fifo = new twrpAdbBuFifo();
TWFunc::Clear_Bootloader_Message();
if (startup.Get_Fastboot_Mode()) {
process_fastbootd_mode();
delete adb_bu_fifo;
TWFunc::Update_Intent_File(startup.Get_Intent());
reboot();
return 0;
} else {
process_recovery_mode(adb_bu_fifo, startup.Should_Skip_Decryption());
}
PageManager::LoadLanguage(DataManager::GetStrValue("tw_language"));
GUIConsole::Translate_Now();
TWFunc::checkforapp(); //Checking compatibility for TWRP app
// Launch the main GUI
gui_start();
delete adb_bu_fifo;
TWFunc::Update_Intent_File(startup.Get_Intent());
reboot();
return 0;
}