163 lines
3.5 KiB
C++
163 lines
3.5 KiB
C++
#include <utils.hpp>
|
|
|
|
#include "raw_data.hpp"
|
|
|
|
struct cmdline {
|
|
bool skip_initramfs;
|
|
bool force_normal_boot;
|
|
bool rootwait;
|
|
char slot[3];
|
|
char dt_dir[64];
|
|
char fstab_suffix[32];
|
|
char hardware[32];
|
|
char hardware_plat[32];
|
|
};
|
|
|
|
struct fstab_entry {
|
|
std::string dev;
|
|
std::string mnt_point;
|
|
std::string type;
|
|
std::string mnt_flags;
|
|
std::string fsmgr_flags;
|
|
|
|
fstab_entry() = default;
|
|
fstab_entry(const fstab_entry &) = delete;
|
|
fstab_entry(fstab_entry &&) = default;
|
|
void to_file(FILE *fp);
|
|
};
|
|
|
|
#define INIT_SOCKET "MAGISKINIT"
|
|
#define DEFAULT_DT_DIR "/proc/device-tree/firmware/android"
|
|
|
|
void load_kernel_info(cmdline *cmd);
|
|
bool check_two_stage();
|
|
int dump_magisk(const char *path, mode_t mode);
|
|
void setup_klog();
|
|
|
|
/***************
|
|
* Base classes
|
|
***************/
|
|
|
|
class BaseInit {
|
|
protected:
|
|
cmdline *cmd;
|
|
char **argv;
|
|
std::vector<std::string> mount_list;
|
|
|
|
[[noreturn]] void exec_init();
|
|
void read_dt_fstab(std::vector<fstab_entry> &fstab);
|
|
public:
|
|
BaseInit(char *argv[], cmdline *cmd) : cmd(cmd), argv(argv), mount_list{"/sys", "/proc"} {}
|
|
virtual ~BaseInit() = default;
|
|
virtual void start() = 0;
|
|
};
|
|
|
|
class MagiskInit : public BaseInit {
|
|
protected:
|
|
auto_data<HEAP> self;
|
|
auto_data<HEAP> config;
|
|
std::string custom_rules_dir;
|
|
|
|
void mount_with_dt();
|
|
bool patch_sepolicy(const char *file);
|
|
void setup_tmp(const char *path);
|
|
void mount_rules_dir(const char *dev_base, const char *mnt_base);
|
|
public:
|
|
MagiskInit(char *argv[], cmdline *cmd) : BaseInit(argv, cmd) {}
|
|
};
|
|
|
|
class SARBase : public MagiskInit {
|
|
protected:
|
|
std::vector<raw_file> overlays;
|
|
|
|
void backup_files();
|
|
void patch_rootdir();
|
|
void mount_system_root();
|
|
public:
|
|
SARBase(char *argv[], cmdline *cmd) : MagiskInit(argv, cmd) {}
|
|
};
|
|
|
|
/***************
|
|
* 2 Stage Init
|
|
***************/
|
|
|
|
class FirstStageInit : public BaseInit {
|
|
private:
|
|
void prepare();
|
|
public:
|
|
FirstStageInit(char *argv[], cmdline *cmd) : BaseInit(argv, cmd) {
|
|
LOGD("%s\n", __FUNCTION__);
|
|
};
|
|
void start() override {
|
|
prepare();
|
|
exec_init();
|
|
}
|
|
};
|
|
|
|
class SecondStageInit : public SARBase {
|
|
private:
|
|
void prepare();
|
|
public:
|
|
SecondStageInit(char *argv[]) : SARBase(argv, nullptr) {
|
|
LOGD("%s\n", __FUNCTION__);
|
|
// Do not unmount /sys and /proc
|
|
mount_list.clear();
|
|
};
|
|
void start() override {
|
|
prepare();
|
|
patch_rootdir();
|
|
exec_init();
|
|
}
|
|
};
|
|
|
|
/*************
|
|
* Legacy SAR
|
|
*************/
|
|
|
|
class SARInit : public SARBase {
|
|
private:
|
|
bool is_two_stage;
|
|
|
|
void early_mount();
|
|
void first_stage_prep();
|
|
public:
|
|
SARInit(char *argv[], cmdline *cmd) : SARBase(argv, cmd), is_two_stage(false) {
|
|
LOGD("%s\n", __FUNCTION__);
|
|
};
|
|
void start() override {
|
|
early_mount();
|
|
if (is_two_stage)
|
|
first_stage_prep();
|
|
else
|
|
patch_rootdir();
|
|
exec_init();
|
|
}
|
|
};
|
|
|
|
/************
|
|
* Initramfs
|
|
************/
|
|
|
|
class RootFSInit : public MagiskInit {
|
|
private:
|
|
void early_mount();
|
|
void patch_rootfs();
|
|
public:
|
|
RootFSInit(char *argv[], cmdline *cmd) : MagiskInit(argv, cmd) {
|
|
LOGD("%s\n", __FUNCTION__);
|
|
}
|
|
void start() override {
|
|
early_mount();
|
|
patch_rootfs();
|
|
exec_init();
|
|
}
|
|
};
|
|
|
|
class MagiskProxy : public MagiskInit {
|
|
public:
|
|
explicit MagiskProxy(char *argv[]) : MagiskInit(argv, nullptr) {
|
|
LOGD("%s\n", __FUNCTION__);
|
|
}
|
|
void start() override;
|
|
};
|