blob: 3e06f8770a2ef57c45285cac56ae97764a19829f [file] [log] [blame]
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <vector>
#include <dirent.h>
#include <time.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/mount.h>
#include <sys/reboot.h>
#include <sys/sendfile.h>
#include <sys/stat.h>
#include <sys/vfs.h>
#include "cutils/android_reboot.h"
#include <iostream>
#include <fstream>
#include "twrp-functions.hpp"
#include "partitions.hpp"
#include "common.h"
#include "data.hpp"
#include "bootloader.h"
#include "variables.h"
extern "C" {
#include "libcrecovery/common.h"
}
/* Execute a command */
int TWFunc::Exec_Cmd(string cmd, string &result) {
FILE* exec;
char buffer[130];
int ret = 0;
exec = __popen(cmd.c_str(), "r");
if (!exec) return -1;
while(!feof(exec)) {
memset(&buffer, 0, sizeof(buffer));
if (fgets(buffer, 128, exec) != NULL) {
buffer[128] = '\n';
buffer[129] = NULL;
result += buffer;
}
}
ret = __pclose(exec);
return ret;
}
/* Checks md5 for a path
Return values:
-1 : MD5 does not exist
0 : Failed
1 : Success */
int TWFunc::Check_MD5(string File) {
int ret;
string Command, DirPath, MD5_File, Sline, Filename, MD5_File_Filename, OK;
char line[255];
size_t pos;
string result;
MD5_File = File + ".md5";
if (Path_Exists(MD5_File)) {
DirPath = Get_Path(File);
MD5_File = Get_Filename(MD5_File);
Command = "cd '" + DirPath + "' && /sbin/busybox md5sum -c '" + MD5_File + "'";
Exec_Cmd(Command, result);
pos = result.find(":");
if (pos != string::npos) {
Filename = Get_Filename(File);
MD5_File_Filename = result.substr(0, pos);
OK = result.substr(pos + 2, result.size() - pos - 2);
if (Filename == MD5_File_Filename && (OK == "OK" || OK == "OK\n")) {
//MD5 is good, return 1
ret = 1;
} else {
// MD5 is bad, return 0
ret = 0;
}
} else {
// MD5 is bad, return 0
ret = 0;
}
} else {
//No md5 file, return -1
ret = -1;
}
return ret;
}
// Returns "file.name" from a full /path/to/file.name
string TWFunc::Get_Filename(string Path) {
size_t pos = Path.find_last_of("/");
if (pos != string::npos) {
string Filename;
Filename = Path.substr(pos + 1, Path.size() - pos - 1);
return Filename;
} else
return Path;
}
// Returns "/path/to/" from a full /path/to/file.name
string TWFunc::Get_Path(string Path) {
size_t pos = Path.find_last_of("/");
if (pos != string::npos) {
string Pathonly;
Pathonly = Path.substr(0, pos + 1);
return Pathonly;
} else
return Path;
}
// Returns "/path" from a full /path/to/file.name
string TWFunc::Get_Root_Path(string Path) {
string Local_Path = Path;
// Make sure that we have a leading slash
if (Local_Path.substr(0, 1) != "/")
Local_Path = "/" + Local_Path;
// Trim the path to get the root path only
size_t position = Local_Path.find("/", 2);
if (position != string::npos) {
Local_Path.resize(position);
}
return Local_Path;
}
void TWFunc::install_htc_dumlock(void) {
int need_libs = 0;
if (!PartitionManager.Mount_By_Path("/system", true))
return;
if (!PartitionManager.Mount_By_Path("/data", true))
return;
ui_print("Installing HTC Dumlock to system...\n");
copy_file("/res/htcd/htcdumlocksys", "/system/bin/htcdumlock", 0755);
if (!Path_Exists("/system/bin/flash_image")) {
ui_print("Installing flash_image...\n");
copy_file("/res/htcd/flash_imagesys", "/system/bin/flash_image", 0755);
need_libs = 1;
} else
ui_print("flash_image is already installed, skipping...\n");
if (!Path_Exists("/system/bin/dump_image")) {
ui_print("Installing dump_image...\n");
copy_file("/res/htcd/dump_imagesys", "/system/bin/dump_image", 0755);
need_libs = 1;
} else
ui_print("dump_image is already installed, skipping...\n");
if (need_libs) {
ui_print("Installing libs needed for flash_image and dump_image...\n");
copy_file("/res/htcd/libbmlutils.so", "/system/lib/libbmlutils.so", 0755);
copy_file("/res/htcd/libflashutils.so", "/system/lib/libflashutils.so", 0755);
copy_file("/res/htcd/libmmcutils.so", "/system/lib/libmmcutils.so", 0755);
copy_file("/res/htcd/libmtdutils.so", "/system/lib/libmtdutils.so", 0755);
}
ui_print("Installing HTC Dumlock app...\n");
mkdir("/data/app", 0777);
unlink("/data/app/com.teamwin.htcdumlock*");
copy_file("/res/htcd/HTCDumlock.apk", "/data/app/com.teamwin.htcdumlock.apk", 0777);
sync();
ui_print("HTC Dumlock is installed.\n");
}
void TWFunc::htc_dumlock_restore_original_boot(void) {
string status;
if (!PartitionManager.Mount_By_Path("/sdcard", true))
return;
ui_print("Restoring original boot...\n");
Exec_Cmd("htcdumlock restore", status);
ui_print("Original boot restored.\n");
}
void TWFunc::htc_dumlock_reflash_recovery_to_boot(void) {
string status;
if (!PartitionManager.Mount_By_Path("/sdcard", true))
return;
ui_print("Reflashing recovery to boot...\n");
Exec_Cmd("htcdumlock recovery noreboot", status);
ui_print("Recovery is flashed to boot.\n");
}
int TWFunc::Recursive_Mkdir(string Path) {
string pathCpy = Path;
string wholePath;
size_t pos = pathCpy.find("/", 2);
while (pos != string::npos)
{
wholePath = pathCpy.substr(0, pos);
if (mkdir(wholePath.c_str(), 0777) && errno != EEXIST) {
LOGE("Unable to create folder: %s (errno=%d)\n", wholePath.c_str(), errno);
return false;
}
pos = pathCpy.find("/", pos + 1);
}
if (mkdir(wholePath.c_str(), 0777) && errno != EEXIST)
return false;
return true;
}
unsigned long long TWFunc::Get_Folder_Size(const string& Path, bool Display_Error) {
DIR* d;
struct dirent* de;
struct stat st;
unsigned long long dusize = 0;
unsigned long long dutemp = 0;
d = opendir(Path.c_str());
if (d == NULL)
{
LOGE("error opening '%s'\n", Path.c_str());
LOGE("error: %s\n", strerror(errno));
return 0;
}
while ((de = readdir(d)) != NULL)
{
if (de->d_type == DT_DIR && strcmp(de->d_name, ".") != 0 && strcmp(de->d_name, "..") != 0)
{
dutemp = Get_Folder_Size((Path + "/" + de->d_name), Display_Error);
dusize += dutemp;
dutemp = 0;
}
else if (de->d_type == DT_REG)
{
stat((Path + "/" + de->d_name).c_str(), &st);
dusize += (unsigned long long)(st.st_size);
}
}
closedir(d);
return dusize;
}
bool TWFunc::Path_Exists(string Path) {
// Check to see if the Path exists
struct stat st;
if (stat(Path.c_str(), &st) != 0)
return false;
else
return true;
}
void TWFunc::GUI_Operation_Text(string Read_Value, string Default_Text) {
string Display_Text;
DataManager::GetValue(Read_Value, Display_Text);
if (Display_Text.empty())
Display_Text = Default_Text;
DataManager::SetValue("tw_operation", Display_Text);
DataManager::SetValue("tw_partition", "");
}
void TWFunc::GUI_Operation_Text(string Read_Value, string Partition_Name, string Default_Text) {
string Display_Text;
DataManager::GetValue(Read_Value, Display_Text);
if (Display_Text.empty())
Display_Text = Default_Text;
DataManager::SetValue("tw_operation", Display_Text);
DataManager::SetValue("tw_partition", Partition_Name);
}
unsigned long TWFunc::Get_File_Size(string Path) {
struct stat st;
if (stat(Path.c_str(), &st) != 0)
return 0;
return st.st_size;
}
static const char *COMMAND_FILE = "/cache/recovery/command";
static const char *INTENT_FILE = "/cache/recovery/intent";
static const char *LOG_FILE = "/cache/recovery/log";
static const char *LAST_LOG_FILE = "/cache/recovery/last_log";
static const char *LAST_INSTALL_FILE = "/cache/recovery/last_install";
static const char *CACHE_ROOT = "/cache";
static const char *SDCARD_ROOT = "/sdcard";
static const char *TEMPORARY_LOG_FILE = "/tmp/recovery.log";
static const char *TEMPORARY_INSTALL_FILE = "/tmp/last_install";
// close a file, log an error if the error indicator is set
void TWFunc::check_and_fclose(FILE *fp, const char *name) {
fflush(fp);
if (ferror(fp)) LOGE("Error in %s\n(%s)\n", name, strerror(errno));
fclose(fp);
}
void TWFunc::copy_log_file(const char* source, const char* destination, int append) {
FILE *log = fopen_path(destination, append ? "a" : "w");
if (log == NULL) {
LOGE("Can't open %s\n", destination);
} else {
FILE *tmplog = fopen(source, "r");
if (tmplog != NULL) {
if (append) {
fseek(tmplog, tmplog_offset, SEEK_SET); // Since last write
}
char buf[4096];
while (fgets(buf, sizeof(buf), tmplog)) fputs(buf, log);
if (append) {
tmplog_offset = ftell(tmplog);
}
check_and_fclose(tmplog, source);
}
check_and_fclose(log, destination);
}
}
// clear the recovery command and prepare to boot a (hopefully working) system,
// copy our log file to cache as well (for the system to read), and
// record any intent we were asked to communicate back to the system.
// this function is idempotent: call it as many times as you like.
void TWFunc::twfinish_recovery(const char *send_intent) {
// By this point, we're ready to return to the main system...
if (send_intent != NULL) {
FILE *fp = fopen_path(INTENT_FILE, "w");
if (fp == NULL) {
LOGE("Can't open %s\n", INTENT_FILE);
} else {
fputs(send_intent, fp);
check_and_fclose(fp, INTENT_FILE);
}
}
// Copy logs to cache so the system can find out what happened.
copy_log_file(TEMPORARY_LOG_FILE, LOG_FILE, true);
copy_log_file(TEMPORARY_LOG_FILE, LAST_LOG_FILE, false);
copy_log_file(TEMPORARY_INSTALL_FILE, LAST_INSTALL_FILE, false);
chmod(LOG_FILE, 0600);
chown(LOG_FILE, 1000, 1000); // system user
chmod(LAST_LOG_FILE, 0640);
chmod(LAST_INSTALL_FILE, 0644);
// Reset to normal system boot so recovery won't cycle indefinitely.
struct bootloader_message boot;
memset(&boot, 0, sizeof(boot));
set_bootloader_message(&boot);
// Remove the command file, so recovery won't repeat indefinitely.
if (!PartitionManager.Mount_By_Path("/system", true) || (unlink(COMMAND_FILE) && errno != ENOENT)) {
LOGW("Can't unlink %s\n", COMMAND_FILE);
}
PartitionManager.UnMount_By_Path("/cache", true);
sync(); // For good measure.
}
// reboot: Reboot the system. Return -1 on error, no return on success
int TWFunc::tw_reboot(RebootCommand command)
{
// Always force a sync before we reboot
sync();
switch (command)
{
case rb_current:
case rb_system:
twfinish_recovery("s");
sync();
check_and_run_script("/sbin/rebootsystem.sh", "reboot system");
return reboot(RB_AUTOBOOT);
case rb_recovery:
check_and_run_script("/sbin/rebootrecovery.sh", "reboot recovery");
return __reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, (void*) "recovery");
case rb_bootloader:
check_and_run_script("/sbin/rebootbootloader.sh", "reboot bootloader");
return __reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, (void*) "bootloader");
case rb_poweroff:
check_and_run_script("/sbin/poweroff.sh", "power off");
android_reboot(ANDROID_RB_POWEROFF, 0, 0);
return reboot(RB_POWER_OFF);
case rb_download:
check_and_run_script("/sbin/rebootdownload.sh", "reboot download");
return __reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, (void*) "download");
return 1;
default:
return -1;
}
return -1;
}
void TWFunc::check_and_run_script(const char* script_file, const char* display_name)
{
// Check for and run startup script if script exists
struct stat st;
string result;
if (stat(script_file, &st) == 0) {
ui_print("Running %s script...\n", display_name);
chmod(script_file, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
TWFunc::Exec_Cmd(script_file, result);
ui_print("\nFinished running %s script.\n", display_name);
}
}
int TWFunc::removeDir(const string path, bool skipParent) {
DIR *d = opendir(path.c_str());
int r = 0;
string new_path;
if (d == NULL) {
LOGE("Error opening '%s'\n", path.c_str());
return -1;
}
if (d) {
struct dirent *p;
while (!r && (p = readdir(d))) {
if (!strcmp(p->d_name, ".") || !strcmp(p->d_name, ".."))
continue;
new_path = path + "/";
new_path.append(p->d_name);
if (p->d_type == DT_DIR) {
r = removeDir(new_path, true);
if (!r) {
if (p->d_type == DT_DIR)
r = rmdir(new_path.c_str());
else
LOGI("Unable to removeDir '%s': %s\n", new_path.c_str(), strerror(errno));
}
} else if (p->d_type == DT_REG || p->d_type == DT_LNK || p->d_type == DT_FIFO || p->d_type == DT_SOCK) {
r = unlink(new_path.c_str());
if (r != 0) {
LOGI("Unable to unlink '%s: %s'\n", new_path.c_str(), strerror(errno));
}
}
}
closedir(d);
if (!r) {
if (skipParent)
return 0;
else
r = rmdir(path.c_str());
}
}
return r;
}
int TWFunc::copy_file(string src, string dst, int mode) {
LOGI("Copying file %s to %s\n", src.c_str(), dst.c_str());
ifstream srcfile(src.c_str(), ios::binary);
ofstream dstfile(dst.c_str(), ios::binary);
dstfile << srcfile.rdbuf();
srcfile.close();
dstfile.close();
if (chmod(dst.c_str(), mode) != 0)
return -1;
return 0;
}
unsigned int TWFunc::Get_D_Type_From_Stat(string Path) {
struct stat st;
stat(Path.c_str(), &st);
if (st.st_mode & S_IFDIR)
return DT_DIR;
else if (st.st_mode & S_IFBLK)
return DT_BLK;
else if (st.st_mode & S_IFCHR)
return DT_CHR;
else if (st.st_mode & S_IFIFO)
return DT_FIFO;
else if (st.st_mode & S_IFLNK)
return DT_LNK;
else if (st.st_mode & S_IFREG)
return DT_REG;
else if (st.st_mode & S_IFSOCK)
return DT_SOCK;
return DT_UNKNOWN;
}
int TWFunc::read_file(string fn, string& results) {
ifstream file;
file.open(fn.c_str(), ios::in);
if (file.is_open()) {
file >> results;
file.close();
return 0;
}
LOGI("Cannot find file %s\n", fn.c_str());
return -1;
}
int TWFunc::write_file(string fn, string& line) {
FILE *file;
file = fopen(fn.c_str(), "w");
if (file != NULL) {
fwrite(line.c_str(), line.size(), 1, file);
fclose(file);
return 0;
}
LOGI("Cannot find file %s\n", fn.c_str());
return -1;
}
timespec TWFunc::timespec_diff(timespec& start, timespec& end)
{
timespec temp;
if ((end.tv_nsec-start.tv_nsec)<0) {
temp.tv_sec = end.tv_sec-start.tv_sec-1;
temp.tv_nsec = 1000000000+end.tv_nsec-start.tv_nsec;
} else {
temp.tv_sec = end.tv_sec-start.tv_sec;
temp.tv_nsec = end.tv_nsec-start.tv_nsec;
}
return temp;
}
int TWFunc::drop_caches(void) {
string file = "/proc/sys/vm/drop_caches";
string value = "3";
if (write_file(file, value) != 0)
return -1;
return 0;
}
int TWFunc::Check_su_Perms(void) {
struct stat st;
int ret = 0;
if (!PartitionManager.Mount_By_Path("/system", false))
return 0;
// Check to ensure that perms are 6755 for all 3 file locations
if (stat("/system/bin/su", &st) == 0) {
if ((st.st_mode & (S_ISUID | S_ISGID | S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)) != (S_ISUID | S_ISGID | S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) || st.st_uid != 0 || st.st_gid != 0) {
ret = 1;
}
}
if (stat("/system/xbin/su", &st) == 0) {
if ((st.st_mode & (S_ISUID | S_ISGID | S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)) != (S_ISUID | S_ISGID | S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) || st.st_uid != 0 || st.st_gid != 0) {
ret += 2;
}
}
if (stat("/system/bin/.ext/.su", &st) == 0) {
if ((st.st_mode & (S_ISUID | S_ISGID | S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)) != (S_ISUID | S_ISGID | S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) || st.st_uid != 0 || st.st_gid != 0) {
ret += 4;
}
}
return ret;
}
bool TWFunc::Fix_su_Perms(void) {
if (!PartitionManager.Mount_By_Path("/system", true))
return false;
string file = "/system/bin/su";
if (TWFunc::Path_Exists(file)) {
if (chown(file.c_str(), 0, 0) != 0) {
LOGE("Failed to chown '%s'\n", file.c_str());
return false;
}
if (tw_chmod(file, "6755") != 0) {
LOGE("Failed to chmod '%s'\n", file.c_str());
return false;
}
}
file = "/system/xbin/su";
if (TWFunc::Path_Exists(file)) {
if (chown(file.c_str(), 0, 0) != 0) {
LOGE("Failed to chown '%s'\n", file.c_str());
return false;
}
if (tw_chmod(file, "6755") != 0) {
LOGE("Failed to chmod '%s'\n", file.c_str());
return false;
}
}
file = "/system/bin/.ext/.su";
if (TWFunc::Path_Exists(file)) {
if (chown(file.c_str(), 0, 0) != 0) {
LOGE("Failed to chown '%s'\n", file.c_str());
return false;
}
if (tw_chmod(file, "6755") != 0) {
LOGE("Failed to chmod '%s'\n", file.c_str());
return false;
}
}
file = "/system/app/Superuser.apk";
if (TWFunc::Path_Exists(file)) {
if (chown(file.c_str(), 0, 0) != 0) {
LOGE("Failed to chown '%s'\n", file.c_str());
return false;
}
if (tw_chmod(file, "0644") != 0) {
LOGE("Failed to chmod '%s'\n", file.c_str());
return false;
}
}
sync();
if (!PartitionManager.UnMount_By_Path("/system", true))
return false;
return true;
}
int TWFunc::tw_chmod(string fn, string mode) {
long mask = 0;
for ( std::string::size_type n = 0; n < mode.length(); ++n) {
if (n == 0) {
if (mode[n] == '0')
continue;
if (mode[n] == '1')
mask |= S_ISVTX;
if (mode[n] == '2')
mask |= S_ISGID;
if (mode[n] == '4')
mask |= S_ISUID;
if (mode[n] == '5') {
mask |= S_ISVTX;
mask |= S_ISUID;
}
if (mode[n] == '6') {
mask |= S_ISGID;
mask |= S_ISUID;
}
if (mode[n] == '7') {
mask |= S_ISVTX;
mask |= S_ISGID;
mask |= S_ISUID;
}
}
else if (n == 1) {
if (mode[n] == '7') {
mask |= S_IRWXU;
}
if (mode[n] == '6') {
mask |= S_IRUSR;
mask |= S_IWUSR;
}
if (mode[n] == '5') {
mask |= S_IRUSR;
mask |= S_IXUSR;
}
if (mode[n] == '4')
mask |= S_IRUSR;
if (mode[n] == '3') {
mask |= S_IWUSR;
mask |= S_IRUSR;
}
if (mode[n] == '2')
mask |= S_IWUSR;
if (mode[n] == '1')
mask |= S_IXUSR;
}
else if (n == 2) {
if (mode[n] == '7') {
mask |= S_IRWXG;
}
if (mode[n] == '6') {
mask |= S_IRGRP;
mask |= S_IWGRP;
}
if (mode[n] == '5') {
mask |= S_IRGRP;
mask |= S_IXGRP;
}
if (mode[n] == '4')
mask |= S_IRGRP;
if (mode[n] == '3') {
mask |= S_IWGRP;
mask |= S_IXGRP;
}
if (mode[n] == '2')
mask |= S_IWGRP;
if (mode[n] == '1')
mask |= S_IXGRP;
}
else if (n == 3) {
if (mode[n] == '7') {
mask |= S_IRWXO;
}
if (mode[n] == '6') {
mask |= S_IROTH;
mask |= S_IWOTH;
}
if (mode[n] == '5') {
mask |= S_IROTH;
mask |= S_IXOTH;
}
if (mode[n] == '4')
mask |= S_IROTH;
if (mode[n] == '3') {
mask |= S_IWOTH;
mask |= S_IXOTH;
}
if (mode[n] == '2')
mask |= S_IWOTH;
if (mode[n] == '1')
mask |= S_IXOTH;
}
}
if (chmod(fn.c_str(), mask) != 0) {
LOGE("Unable to chmod '%s' %l\n", fn.c_str(), mask);
return -1;
}
return 0;
}
bool TWFunc::Install_SuperSU(void) {
if (!PartitionManager.Mount_By_Path("/system", true))
return false;
if (copy_file("/res/supersu/su", "/system/xbin/su", 0755) != 0) {
LOGE("Failed to copy su binary to /system/bin\n");
return false;
}
if (copy_file("/res/supersu/Superuser.apk", "/system/app/Superuser.apk", 0644) != 0) {
LOGE("Failed to copy Superuser app to /system/app\n");
return false;
}
if (!Fix_su_Perms())
return false;
return true;
}