Add magiskhide list management

jni/magiskhide/list_manager.c

@@ -0,0 +1,130 @@
+/* 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) {
+	if (!hideEnabled)
+		return 1;
+
+	char *line;
+	struct vector *new_list, *temp = hide_list;
+	new_list = xmalloc(sizeof(*new_list));
+	if (new_list == NULL)
+		return 1;
+	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);
+			return 2;
+		}
+		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
+	pthread_mutex_lock(&lock);
+	hide_list = new_list;
+	pthread_mutex_unlock(&lock);
+
+	// Free old list
+	vec_destroy(temp);
+	free(temp);
+	if (vector_to_file(HIDELIST, hide_list))
+		return 1;
+	return 0;
+}
+
+int rm_list(char *proc) {
+	if (!hideEnabled)
+		return 1;
+
+	char *line;
+	struct vector *new_list, *temp;
+	temp = new_list = xmalloc(sizeof(*new_list));
+	if (new_list == NULL)
+		return 1;
+	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
+		pthread_mutex_lock(&lock);
+		hide_list = new_list;
+		pthread_mutex_unlock(&lock);
+		if (vector_to_file(HIDELIST, hide_list))
+			return 1;
+	}
+
+	free(proc);
+	vec_destroy(temp);
+	free(temp);
+	return 0;
+}
+
+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);
+}