Magisk/jni/magiskhide/magiskhide.c
2017-09-06 02:25:40 +08:00

169 lines
3.7 KiB
C

/* magiskhide.c - initialize the environment for Magiskhide
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>
#include <signal.h>
#include <string.h>
#include <sys/wait.h>
#include <sys/types.h>
#include "magisk.h"
#include "utils.h"
#include "magiskhide.h"
#include "daemon.h"
#include "resetprop.h"
struct vector *hide_list = NULL;
int hideEnabled = 0;
static pthread_t proc_monitor_thread;
pthread_mutex_t hide_lock, file_lock;
void kill_proc(int pid) {
kill(pid, SIGTERM);
}
static void usage(char *arg0) {
fprintf(stderr,
"MagiskHide v" xstr(MAGISK_VERSION) "(" xstr(MAGISK_VER_CODE) ") (by topjohnwu) - Hide Magisk!\n\n"
"Usage: %s [--options [arguments...] ]\n\n"
"Options:\n"
" --enable Start magiskhide\n"
" --disable Stop magiskhide\n"
" --add PROCESS Add PROCESS to the hide list\n"
" --rm PROCESS Remove PROCESS from the hide list\n"
" --ls Print out the current hide list\n"
, arg0);
exit(1);
}
void launch_magiskhide(int client) {
// We manually handle crashes
err_handler = do_nothing;
if (hideEnabled) {
if (client > 0) {
write_int(client, HIDE_IS_ENABLED);
close(client);
}
return;
}
hideEnabled = 1;
LOGI("* Starting MagiskHide\n");
deleteprop(MAGISKHIDE_PROP, 1);
hide_sensitive_props();
// Initialize the mutex lock
pthread_mutex_init(&hide_lock, NULL);
pthread_mutex_init(&file_lock, NULL);
// Initialize the hide list
if (init_list())
goto error;
// Add SafetyNet by default
add_list(strdup("com.google.android.gms.unstable"));
if (client > 0) {
write_int(client, DAEMON_SUCCESS);
close(client);
}
// Get thread reference
proc_monitor_thread = pthread_self();
// Start monitoring
proc_monitor();
return;
error:
hideEnabled = 0;
if (client > 0) {
write_int(client, DAEMON_ERROR);
close(client);
}
return;
}
void stop_magiskhide(int client) {
if (!hideEnabled) {
write_int(client, HIDE_NOT_ENABLED);
close(client);
return;
}
LOGI("* Stopping MagiskHide\n");
hideEnabled = 0;
setprop(MAGISKHIDE_PROP, "0");
// Remove without actually removing persist props
deleteprop(MAGISKHIDE_PROP, 0);
pthread_kill(proc_monitor_thread, SIGUSR1);
write_int(client, DAEMON_SUCCESS);
close(client);
}
int magiskhide_main(int argc, char *argv[]) {
if (argc < 2) {
usage(argv[0]);
}
client_request req = DO_NOTHING;
if (strcmp(argv[1], "--enable") == 0) {
req = LAUNCH_MAGISKHIDE;
} else if (strcmp(argv[1], "--disable") == 0) {
req = STOP_MAGISKHIDE;
} else if (strcmp(argv[1], "--add") == 0 && argc > 2) {
req = ADD_HIDELIST;
} else if (strcmp(argv[1], "--rm") == 0 && argc > 2) {
req = RM_HIDELIST;
} else if (strcmp(argv[1], "--ls") == 0) {
req = LS_HIDELIST;
}
int fd = connect_daemon();
write_int(fd, req);
if (req == ADD_HIDELIST || req == RM_HIDELIST) {
write_string(fd, argv[2]);
}
daemon_response code = read_int(fd);
switch (code) {
case DAEMON_ERROR:
fprintf(stderr, "Error occured in daemon...\n");
return code;
case DAEMON_SUCCESS:
break;
case ROOT_REQUIRED:
fprintf(stderr, "Root is required for this operation\n");
return code;
case HIDE_NOT_ENABLED:
fprintf(stderr, "Magisk hide is not enabled yet\n");
return code;
case HIDE_IS_ENABLED:
fprintf(stderr, "Magisk hide is already enabled\n");
return code;
case HIDE_ITEM_EXIST:
fprintf(stderr, "Process [%s] already exists in hide list\n", argv[2]);
return code;
case HIDE_ITEM_NOT_EXIST:
fprintf(stderr, "Process [%s] does not exist in hide list\n", argv[2]);
return code;
}
if (req == LS_HIDELIST) {
int argc = read_int(fd);
for (int i = 0; i < argc; ++i) {
char *s = read_string(fd);
printf("%s\n", s);
free(s);
}
}
close(fd);
return 0;
}