Magisk/native/jni/magiskhide/magiskhide.cpp
2018-11-16 00:37:41 -05:00

202 lines
4.4 KiB
C++

#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"
#include "flags.h"
bool hide_enabled = false;
static pthread_t proc_monitor_thread;
pthread_mutex_t list_lock;
[[noreturn]] static void usage(char *arg0) {
fprintf(stderr,
"MagiskHide v" xstr(MAGISK_VERSION) "(" xstr(MAGISK_VER_CODE) ") (by topjohnwu)\n\n"
"Usage: %s [--options [arguments...] ]\n\n"
"Options:\n"
" --status Return the status of MagiskHide\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);
}
int launch_magiskhide(int client) {
if (hide_enabled)
return HIDE_IS_ENABLED;
if (!log_daemon_started) {
setprop(MAGISKHIDE_PROP, "0");
// Remove without actually removing persist props
deleteprop(MAGISKHIDE_PROP);
return LOGCAT_DISABLED;
}
hide_enabled = true;
LOGI("* Starting MagiskHide\n");
deleteprop(MAGISKHIDE_PROP, true);
hide_sensitive_props();
// Initialize the mutex lock
pthread_mutex_init(&list_lock, nullptr);
// Initialize the hide list
if (!init_list())
goto error;
// Add SafetyNet by default
add_list("com.google.android.gms.unstable");
// Get thread reference
proc_monitor_thread = pthread_self();
if (client >= 0) {
write_int(client, DAEMON_SUCCESS);
close(client);
}
// Start monitoring
proc_monitor();
error:
hide_enabled = false;
return DAEMON_ERROR;
}
int stop_magiskhide() {
LOGI("* Stopping MagiskHide\n");
hide_enabled = false;
setprop(MAGISKHIDE_PROP, "0");
// Remove without actually removing persist props
deleteprop(MAGISKHIDE_PROP);
pthread_kill(proc_monitor_thread, TERM_THREAD);
return DAEMON_SUCCESS;
}
void magiskhide_handler(int client) {
int req = read_int(client);
int res = DAEMON_ERROR;
switch (req) {
case STOP_MAGISKHIDE:
case ADD_HIDELIST:
case RM_HIDELIST:
case LS_HIDELIST:
if (!hide_enabled) {
write_int(client, HIDE_NOT_ENABLED);
close(client);
return;
}
}
switch (req) {
case LAUNCH_MAGISKHIDE:
res = launch_magiskhide(client);
break;
case STOP_MAGISKHIDE:
res = stop_magiskhide();
break;
case ADD_HIDELIST:
res = add_list(client);
break;
case RM_HIDELIST:
res = rm_list(client);
break;
case LS_HIDELIST:
ls_list(client);
client = -1;
break;
case HIDE_STATUS:
res = hide_enabled ? HIDE_IS_ENABLED : HIDE_NOT_ENABLED;
break;
}
write_int(client, res);
close(client);
}
int magiskhide_main(int argc, char *argv[]) {
if (argc < 2)
usage(argv[0]);
int req;
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;
else if (strcmp(argv[1], "--status") == 0)
req = HIDE_STATUS;
else
usage(argv[0]);
// Send request
int fd = connect_daemon();
write_int(fd, MAGISKHIDE);
write_int(fd, req);
if (req == ADD_HIDELIST || req == RM_HIDELIST)
write_string(fd, argv[2]);
// Get response
int code = read_int(fd);
switch (code) {
case DAEMON_SUCCESS:
break;
case LOGCAT_DISABLED:
fprintf(stderr, "Logcat is disabled, cannot start MagiskHide\n");
break;
case HIDE_NOT_ENABLED:
fprintf(stderr, "MagiskHide is not enabled\n");
break;
case HIDE_IS_ENABLED:
fprintf(stderr, "MagiskHide is enabled\n");
break;
case HIDE_ITEM_EXIST:
fprintf(stderr, "Process [%s] already exists in hide list\n", argv[2]);
break;
case HIDE_ITEM_NOT_EXIST:
fprintf(stderr, "Process [%s] does not exist in hide list\n", argv[2]);
break;
/* Errors */
case ROOT_REQUIRED:
fprintf(stderr, "Root is required for this operation\n");
break;
case DAEMON_ERROR:
default:
fprintf(stderr, "Error occured in daemon...\n");
return DAEMON_ERROR;
}
if (code == DAEMON_SUCCESS && req == LS_HIDELIST) {
int cnt = read_int(fd);
for (int i = 0; i < cnt; ++i) {
char *s = read_string(fd);
printf("%s\n", s);
free(s);
}
}
close(fd);
return req == HIDE_STATUS ? (code == HIDE_IS_ENABLED ? 0 : 1) : code != DAEMON_SUCCESS;
}