Preparation for dynamic tmpfs path

This commit is contained in:
topjohnwu
2020-04-12 05:34:56 -07:00
parent d739dcac2b
commit e0a281583d
13 changed files with 289 additions and 258 deletions

View File

@ -4,6 +4,7 @@
#include <string.h>
#include <pthread.h>
#include <signal.h>
#include <libgen.h>
#include <sys/un.h>
#include <sys/types.h>
#include <sys/mount.h>
@ -16,8 +17,11 @@
#include <resetprop.hpp>
#include <flags.h>
using namespace std;
int SDK_INT = -1;
bool RECOVERY_MODE = false;
string MAGISKTMP;
static struct stat self_st;
static void verify_client(int client, pid_t pid) {
@ -91,6 +95,10 @@ static void *request_handler(void *args) {
}
close(client);
break;
case GET_PATH:
write_string(client, MAGISKTMP.data());
close(client);
break;
default:
close(client);
break;
@ -114,11 +122,19 @@ static void main_daemon() {
setsid();
setcon("u:r:" SEPOL_PROC_DOMAIN ":s0");
// Get self stat
char path[4096];
xreadlink("/proc/self/exe", path, sizeof(path));
MAGISKTMP = dirname(path);
xstat("/proc/self/exe", &self_st);
restore_rootcon();
// Unmount pre-init patches
if (access(ROOTMNT, F_OK) == 0) {
file_readline(true, ROOTMNT, [](auto line) -> bool {
auto mount_list = MAGISKTMP + "/" ROOTMNT;
if (access(mount_list.data(), F_OK) == 0) {
file_readline(true, mount_list.data(), [](string_view line) -> bool {
umount2(line.data(), MNT_DETACH);
return true;
});
@ -126,9 +142,6 @@ static void main_daemon() {
LOGI(NAME_WITH_VER(Magisk) " daemon started\n");
// Get server stat
stat("/proc/self/exe", &self_st);
// Get API level
parse_prop_file("/system/build.prop", [](auto key, auto val) -> bool {
if (key == "ro.build.version.sdk") {
@ -148,7 +161,8 @@ static void main_daemon() {
}
// Load config status
parse_prop_file(MAGISKTMP "/config", [](auto key, auto val) -> bool {
auto config = MAGISKTMP + "/" INTLROOT "/config";
parse_prop_file(config.data(), [](auto key, auto val) -> bool {
if (key == "RECOVERYMODE" && val == "true")
RECOVERY_MODE = true;
return true;