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-rw-r--r--twrp.cpp416
1 files changed, 416 insertions, 0 deletions
diff --git a/twrp.cpp b/twrp.cpp
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+++ b/twrp.cpp
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+/*
+ 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"
+#include "bootloader_message/bootloader_message.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 "partitions.hpp"
+#include "openrecoveryscript.hpp"
+#include "variables.h"
+#include "twrpDU.hpp"
+#ifdef TW_USE_NEW_MINADBD
+#include "adb.h"
+#else
+extern "C" {
+#include "minadbd.old/adb.h"
+}
+#endif
+
+#ifdef HAVE_SELINUX
+#include "selinux/label.h"
+struct selabel_handle *selinux_handle;
+#endif
+
+extern int adb_server_main(int is_daemon, int server_port, int /* reply_fd */);
+
+TWPartitionManager PartitionManager;
+int Log_Offset;
+bool datamedia;
+twrpDU du;
+
+static void Print_Prop(const char *key, const char *name, void *cookie) {
+ printf("%s=%s\n", key, name);
+}
+
+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);
+#else
+ adb_main(argv[2]);
+#endif
+ return 0;
+ }
+
+#ifdef RECOVERY_SDCARD_ON_DATA
+ datamedia = true;
+#endif
+
+ char crash_prop_val[PROPERTY_VALUE_MAX];
+ int crash_counter;
+ 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);
+ 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();
+ printf("=> Linking mtab\n");
+ symlink("/proc/mounts", "/etc/mtab");
+ if (TWFunc::Path_Exists("/etc/twrp.fstab")) {
+ if (TWFunc::Path_Exists("/etc/recovery.fstab")) {
+ printf("Renaming regular /etc/recovery.fstab -> /etc/recovery.fstab.bak\n");
+ rename("/etc/recovery.fstab", "/etc/recovery.fstab.bak");
+ }
+ printf("Moving /etc/twrp.fstab -> /etc/recovery.fstab\n");
+ rename("/etc/twrp.fstab", "/etc/recovery.fstab");
+ }
+ printf("=> Processing recovery.fstab\n");
+ if (!PartitionManager.Process_Fstab("/etc/recovery.fstab", 1)) {
+ LOGERR("Failing out of recovery due to problem with recovery.fstab.\n");
+ return -1;
+ }
+ PartitionManager.Output_Partition_Logging();
+ // Load up all the resources
+ gui_loadResources();
+
+#ifdef HAVE_SELINUX
+ if (TWFunc::Path_Exists("/prebuilt_file_contexts")) {
+ if (TWFunc::Path_Exists("/file_contexts")) {
+ printf("Renaming regular /file_contexts -> /file_contexts.bak\n");
+ rename("/file_contexts", "/file_contexts.bak");
+ }
+ printf("Moving /prebuilt_file_contexts -> /file_contexts\n");
+ rename("/prebuilt_file_contexts", "/file_contexts");
+ }
+ struct selinux_opt selinux_options[] = {
+ { SELABEL_OPT_PATH, "/file_contexts" }
+ };
+ selinux_handle = selabel_open(SELABEL_CTX_FILE, selinux_options, 1);
+ if (!selinux_handle)
+ printf("No file contexts for SELinux\n");
+ else
+ printf("SELinux contexts loaded from /file_contexts\n");
+ { // Check to ensure SELinux can be supported by the kernel
+ char *contexts = NULL;
+
+ if (PartitionManager.Mount_By_Path("/cache", true) && TWFunc::Path_Exists("/cache/recovery")) {
+ lgetfilecon("/cache/recovery", &contexts);
+ if (!contexts) {
+ lsetfilecon("/cache/recovery", "test");
+ lgetfilecon("/cache/recovery", &contexts);
+ }
+ } else {
+ LOGINFO("Could not check /cache/recovery SELinux contexts, using /sbin/teamwin instead which may be inaccurate.\n");
+ lgetfilecon("/sbin/teamwin", &contexts);
+ }
+ if (!contexts) {
+ gui_warn("no_kernel_selinux=Kernel does not have support for reading SELinux contexts.");
+ } else {
+ free(contexts);
+ gui_msg("full_selinux=Full SELinux support is present.");
+ }
+ }
+#else
+ gui_warn("no_selinux=No SELinux support (no libselinux).");
+#endif
+
+ PartitionManager.Mount_By_Path("/cache", true);
+
+ bool Shutdown = false, Sideload = false;
+ string Send_Intent = "";
+ {
+ TWPartition* misc = PartitionManager.Find_Partition_By_Path("/misc");
+ if (misc != NULL) {
+ if (misc->Current_File_System == "emmc") {
+ set_misc_device("emmc", misc->Actual_Block_Device.c_str());
+ } else if (misc->Current_File_System == "mtd") {
+ set_misc_device("mtd", misc->MTD_Name.c_str());
+ } else {
+ LOGERR("Unknown file system for /misc\n");
+ }
+ }
+ get_args(&argc, &argv);
+
+ int index, index2, len;
+ char* argptr;
+ char* ptr;
+ printf("Startup Commands: ");
+ for (index = 1; index < argc; index++) {
+ argptr = argv[index];
+ printf(" '%s'", argv[index]);
+ len = strlen(argv[index]);
+ if (*argptr == '-') {argptr++; len--;}
+ if (*argptr == '-') {argptr++; len--;}
+ if (*argptr == 'u') {
+ ptr = argptr;
+ index2 = 0;
+ while (*ptr != '=' && *ptr != '\n')
+ ptr++;
+ // skip the = before grabbing Zip_File
+ while (*ptr == '=')
+ ptr++;
+ if (*ptr) {
+ string ORSCommand = "install ";
+ ORSCommand.append(ptr);
+
+ if (!OpenRecoveryScript::Insert_ORS_Command(ORSCommand))
+ break;
+ } else
+ LOGERR("argument error specifying zip file\n");
+ } else if (*argptr == 'w') {
+ if (len == 9) {
+ if (!OpenRecoveryScript::Insert_ORS_Command("wipe data\n"))
+ break;
+ } else if (len == 10) {
+ if (!OpenRecoveryScript::Insert_ORS_Command("wipe cache\n"))
+ break;
+ }
+ // Other 'w' items are wipe_ab and wipe_package_size which are related to bricking the device remotely. We will not bother to suppor these as having TWRP probably makes "bricking" the device in this manner useless
+ } else if (*argptr == 'n') {
+ DataManager::SetValue(TW_BACKUP_NAME, gui_parse_text("{@auto_generate}"));
+ if (!OpenRecoveryScript::Insert_ORS_Command("backup BSDCAE\n"))
+ break;
+ } else if (*argptr == 'p') {
+ Shutdown = true;
+ } else if (*argptr == 's') {
+ if (strncmp(argptr, "send_intent", strlen("send_intent") == 0)) {
+ ptr = argptr + strlen("send_intent") + 1;
+ Send_Intent = *ptr;
+ } else if (strncmp(argptr, "security", strlen("security") == 0)) {
+ LOGINFO("Security update\n");
+ } else if (strncmp(argptr, "sideload", strlen("sideload") == 0)) {
+ if (!OpenRecoveryScript::Insert_ORS_Command("sideload\n"))
+ break;
+ } else if (strncmp(argptr, "stages", strlen("stages") == 0)) {
+ LOGINFO("ignoring stages command\n");
+ }
+ } else if (*argptr == 'r') {
+ if (strncmp(argptr, "reason", strlen("reason") == 0)) {
+ ptr = argptr + strlen("reason") + 1;
+ gui_print("%s\n", ptr);
+ }
+ }
+ }
+ printf("\n");
+ }
+
+ if(crash_counter == 0) {
+ property_list(Print_Prop, NULL);
+ printf("\n");
+ } else {
+ printf("twrp.crash_counter=%d\n", crash_counter);
+ }
+
+ // Check for and run startup script if script exists
+ TWFunc::check_and_run_script("/sbin/runatboot.sh", "boot");
+ TWFunc::check_and_run_script("/sbin/postrecoveryboot.sh", "boot");
+
+#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
+
+ TWFunc::Update_Log_File();
+ // Offer to decrypt if the device is encrypted
+ if (DataManager::GetIntValue(TW_IS_ENCRYPTED) != 0) {
+ LOGINFO("Is encrypted, do decrypt page first\n");
+ if (gui_startPage("decrypt", 1, 1) != 0) {
+ LOGERR("Failed to start decrypt GUI page.\n");
+ } else {
+ // Check for and load custom theme if present
+ gui_loadCustomResources();
+ }
+ } else if (datamedia) {
+ 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");
+ }
+ }
+
+ // Read the settings file
+#ifdef TW_HAS_MTP
+ // We unmount partitions sometimes during early boot which may override
+ // the default of MTP being enabled by auto toggling MTP off. This
+ // will force it back to enabled then get overridden by the settings
+ // file, assuming that an entry for tw_mtp_enabled is set.
+ DataManager::SetValue("tw_mtp_enabled", 1);
+#endif
+ DataManager::ReadSettingsFile();
+ PageManager::LoadLanguage(DataManager::GetStrValue("tw_language"));
+ GUIConsole::Translate_Now();
+
+ // Fixup the RTC clock on devices which require it
+ if(crash_counter == 0)
+ TWFunc::Fixup_Time_On_Boot();
+
+ // Run any outstanding OpenRecoveryScript
+ if (DataManager::GetIntValue(TW_IS_ENCRYPTED) == 0 && (TWFunc::Path_Exists(SCRIPT_FILE_TMP) || TWFunc::Path_Exists(SCRIPT_FILE_CACHE))) {
+ OpenRecoveryScript::Run_OpenRecoveryScript();
+ }
+
+#ifdef TW_HAS_MTP
+ // Enable MTP?
+ char mtp_crash_check[PROPERTY_VALUE_MAX];
+ property_get("mtp.crash_check", mtp_crash_check, "0");
+ if (strcmp(mtp_crash_check, "0") == 0) {
+ property_set("mtp.crash_check", "1");
+ if (DataManager::GetIntValue("tw_mtp_enabled") == 1 && ((DataManager::GetIntValue(TW_IS_ENCRYPTED) != 0 && DataManager::GetIntValue(TW_IS_DECRYPTED) != 0) || DataManager::GetIntValue(TW_IS_ENCRYPTED) == 0)) {
+ LOGINFO("Enabling MTP during startup\n");
+ if (!PartitionManager.Enable_MTP())
+ PartitionManager.Disable_MTP();
+ else
+ gui_msg("mtp_enabled=MTP Enabled");
+ } else {
+ PartitionManager.Disable_MTP();
+ }
+ property_set("mtp.crash_check", "0");
+ } else {
+ gui_warn("mtp_crash=MTP Crashed, not starting MTP on boot.");
+ DataManager::SetValue("tw_mtp_enabled", 0);
+ PartitionManager.Disable_MTP();
+ }
+#else
+ PartitionManager.Disable_MTP();
+#endif
+
+#ifndef TW_OEM_BUILD
+ // Check if system has never been changed
+ TWPartition* sys = PartitionManager.Find_Partition_By_Path("/system");
+ TWPartition* ven = PartitionManager.Find_Partition_By_Path("/vendor");
+ if (sys) {
+ 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
+ // Launch the main GUI
+ gui_start();
+
+#ifndef TW_OEM_BUILD
+ // Disable flashing of stock recovery
+ TWFunc::Disable_Stock_Recovery_Replace();
+ // Check for su to see if the device is rooted or not
+ if (DataManager::GetIntValue("tw_mount_system_ro") == 0 && PartitionManager.Mount_By_Path("/system", false)) {
+ // read /system/build.prop to get sdk version and do not offer to root if running M or higher (sdk version 23 == M)
+ string sdkverstr = TWFunc::System_Property_Get("ro.build.version.sdk");
+ int sdkver = 23;
+ if (!sdkverstr.empty()) {
+ sdkver = atoi(sdkverstr.c_str());
+ }
+ if (TWFunc::Path_Exists("/supersu/su") && TWFunc::Path_Exists("/system/bin") && !TWFunc::Path_Exists("/system/bin/su") && !TWFunc::Path_Exists("/system/xbin/su") && !TWFunc::Path_Exists("/system/bin/.ext/.su") && sdkver < 23) {
+ // Device doesn't have su installed
+ DataManager::SetValue("tw_busy", 1);
+ if (gui_startPage("installsu", 1, 1) != 0) {
+ LOGERR("Failed to start SuperSU install page.\n");
+ }
+ }
+ sync();
+ PartitionManager.UnMount_By_Path("/system", false);
+ }
+#endif
+
+ // Reboot
+ TWFunc::Update_Intent_File(Send_Intent);
+ TWFunc::Update_Log_File();
+ gui_msg(Msg("rebooting=Rebooting..."));
+ 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
+ TWFunc::tw_reboot(rb_system);
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-08 10:14:59 +0200