mirror of
https://github.com/topjohnwu/Magisk.git
synced 2024-11-24 10:35:26 +00:00
3dfcc6b0be
- Checkout from https://github.com/seSuperuser/Superuser (commit: 69f84dd7a035b4a9f18dea69d9e0452bf0f73103) - Move Superuser/Superuser/jni/su/* to root - Move Superuser/jni/sqlite3/* to sqlite3
106 lines
3.1 KiB
C
106 lines
3.1 KiB
C
/*
|
|
** Copyright 2013, Koushik Dutta (@koush)
|
|
**
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
|
** you may not use this file except in compliance with the License.
|
|
** You may obtain a copy of the License at
|
|
**
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
|
**
|
|
** Unless required by applicable law or agreed to in writing, software
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
** See the License for the specific language governing permissions and
|
|
** limitations under the License.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <limits.h>
|
|
#include <sqlite3.h>
|
|
#include <time.h>
|
|
|
|
#include "su.h"
|
|
|
|
struct callback_data_t {
|
|
struct su_context *ctx;
|
|
policy_t policy;
|
|
};
|
|
|
|
static int database_callback(void *v, int argc, char **argv, char **azColName){
|
|
struct callback_data_t *data = (struct callback_data_t *)v;
|
|
int command_match = 0;
|
|
policy_t policy = DENY;
|
|
int i;
|
|
time_t until = 0;
|
|
for(i = 0; i < argc; i++) {
|
|
if (strcmp(azColName[i], "policy") == 0) {
|
|
if (argv[i] == NULL) {
|
|
policy = DENY;
|
|
}
|
|
if (strcmp(argv[i], "allow") == 0) {
|
|
policy = ALLOW;
|
|
}
|
|
else if (strcmp(argv[i], "interactive") == 0) {
|
|
policy = INTERACTIVE;
|
|
}
|
|
else {
|
|
policy = DENY;
|
|
}
|
|
}
|
|
else if (strcmp(azColName[i], "command") == 0) {
|
|
// null or empty command means to match all commands (whitelist all from uid)
|
|
command_match = argv[i] == NULL || strlen(argv[i]) == 0 || strcmp(argv[i], get_command(&(data->ctx->to))) == 0;
|
|
}
|
|
else if (strcmp(azColName[i], "until") == 0) {
|
|
if (argv[i] != NULL) {
|
|
until = atoi(argv[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
// check for command match
|
|
if (command_match) {
|
|
// also make sure this policy has not expired
|
|
if (until == 0 || until > time(NULL)) {
|
|
if (policy == DENY) {
|
|
data->policy = DENY;
|
|
return -1;
|
|
}
|
|
|
|
data->policy = ALLOW;
|
|
// even though we allow, continue, so we can see if there's another policy
|
|
// that denies...
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
policy_t database_check(struct su_context *ctx) {
|
|
sqlite3 *db = NULL;
|
|
|
|
char query[512];
|
|
snprintf(query, sizeof(query), "select policy, until, command from uid_policy where uid=%d", ctx->from.uid);
|
|
int ret = sqlite3_open_v2(ctx->user.database_path, &db, SQLITE_OPEN_READONLY, NULL);
|
|
if (ret) {
|
|
LOGE("sqlite3 open failure: %d", ret);
|
|
sqlite3_close(db);
|
|
return INTERACTIVE;
|
|
}
|
|
|
|
int result;
|
|
char *err = NULL;
|
|
struct callback_data_t data;
|
|
data.ctx = ctx;
|
|
data.policy = INTERACTIVE;
|
|
ret = sqlite3_exec(db, query, database_callback, &data, &err);
|
|
sqlite3_close(db);
|
|
if (err != NULL) {
|
|
LOGE("sqlite3_exec: %s", err);
|
|
return DENY;
|
|
}
|
|
|
|
return data.policy;
|
|
}
|