Magisk/jni/magiskhide/list_manager.c

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/* list_manager.c - Hide list management
*/
#include <string.h>
#include <unistd.h>
#include <pthread.h>
#include "magisk.h"
#include "utils.h"
#include "daemon.h"
#include "magiskhide.h"
int add_list(char *proc) {
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if (!hideEnabled) {
free(proc);
return HIDE_NOT_ENABLED;
}
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char *line;
struct vector *new_list, *temp = hide_list;
new_list = xmalloc(sizeof(*new_list));
if (new_list == NULL)
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return HIDE_ERROR;
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vec_init(new_list);
vec_for_each(hide_list, line) {
// They should be unique
if (strcmp(line, proc) == 0) {
free(proc);
vec_destroy(new_list);
free(new_list);
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return HIDE_ITEM_EXIST;
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}
vec_push_back(new_list, line);
}
vec_push_back(new_list, proc);
LOGI("hide_list add: [%s]\n", proc);
ps_filter_proc_name(proc, kill_proc);
// Critical region
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pthread_mutex_lock(&hide_lock);
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hide_list = new_list;
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pthread_mutex_unlock(&hide_lock);
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// Free old list
vec_destroy(temp);
free(temp);
if (vector_to_file(HIDELIST, hide_list))
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return HIDE_ERROR;
return HIDE_SUCCESS;
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}
int rm_list(char *proc) {
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if (!hideEnabled) {
free(proc);
return HIDE_NOT_ENABLED;
}
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hide_ret ret = HIDE_ERROR;
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char *line;
struct vector *new_list, *temp;
temp = new_list = xmalloc(sizeof(*new_list));
if (new_list == NULL)
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goto error;
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vec_init(new_list);
vec_for_each(hide_list, line) {
if (strcmp(line, proc) == 0) {
free(proc);
proc = line;
temp = hide_list;
continue;
}
vec_push_back(new_list, line);
}
if (temp == hide_list) {
LOGI("hide_list rm: [%s]\n", proc);
ps_filter_proc_name(proc, kill_proc);
// Critical region
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pthread_mutex_lock(&hide_lock);
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hide_list = new_list;
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pthread_mutex_unlock(&hide_lock);
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ret = HIDE_SUCCESS;
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if (vector_to_file(HIDELIST, hide_list))
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ret = HIDE_ERROR;
} else {
ret = HIDE_ITEM_NOT_EXIST;
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}
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error:
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free(proc);
vec_destroy(temp);
free(temp);
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return ret;
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}
int init_list() {
LOGD("hide_list: initialize...\n");
if ((hide_list = xmalloc(sizeof(*hide_list))) == NULL)
return 1;
vec_init(hide_list);
// Might return 1 if first time
file_to_vector(HIDELIST, hide_list);
char *line;
vec_for_each(hide_list, line) {
LOGI("hide_list: [%s]\n", line);
ps_filter_proc_name(line, kill_proc);
}
return 0;
}
int destroy_list() {
char *line;
vec_for_each(hide_list, line) {
ps_filter_proc_name(line, kill_proc);
}
vec_deep_destroy(hide_list);
free(hide_list);
hide_list = NULL;
return 0;
}
void add_hide_list(int client) {
char *proc = read_string(client);
// ack
write_int(client, add_list(proc));
close(client);
}
void rm_hide_list(int client) {
char *proc = read_string(client);
// ack
write_int(client, rm_list(proc));
close(client);
}