Magisk/native/jni/magiskhide/magiskhide.cpp
topjohnwu 4eed6794c7 More MagiskHide optimizations
- Use a general procfs traversal function with callbacks
- Much better functions for killing processes
2019-02-13 20:16:26 -05:00

138 lines
3.1 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 <daemon.h>
#include <flags.h>
#include "magiskhide.h"
bool hide_enabled = false;
[[noreturn]] static void usage(char *arg0) {
fprintf(stderr,
FULL_VER(MagiskHide) "\n\n"
"Usage: %s [--option [arguments...] ]\n\n"
"Options:\n"
" --status Return the status of MagiskHide\n"
" --enable Start magiskhide\n"
" --disable Stop magiskhide\n"
" --add TARGET Add TARGET to the hide list\n"
" --rm TARGET Remove TARGET from the hide list\n"
" --ls Print out the current hide list\n"
"\n"
"TARGET can be either a package name or a specific component name\n"
"If TARGET is a package name, all components of the app will be targeted\n"
"A component name is composed of <pkg>/<cls>\n"
, arg0);
exit(1);
}
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:
launch_magiskhide(client);
return;
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]);
if (req == LS_HIDELIST)
send_fd(fd, STDOUT_FILENO);
// Get response
int code = read_int(fd);
switch (code) {
case DAEMON_SUCCESS:
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, "[%s] already exists in hide list\n", argv[2]);
break;
case HIDE_ITEM_NOT_EXIST:
fprintf(stderr, "[%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;
}
return req == HIDE_STATUS ? (code == HIDE_IS_ENABLED ? 0 : 1) : code != DAEMON_SUCCESS;
}