Magisk/native/jni/include/db.h
topjohnwu dbb8b8a439 Handle magisk.db completely natively
Prevent database corruption due to different Android application sqlite default settings
2018-10-27 17:54:48 -04:00

126 lines
2.0 KiB
C

#ifndef DB_H
#define DB_H
#include <sqlite3.h>
#include <sys/stat.h>
/***************
* DB Settings *
***************/
#define DB_SETTING_KEYS \
((char *[]) { \
"root_access", \
"multiuser_mode", \
"mnt_ns" \
})
#define DB_SETTINGS_NUM (sizeof(DB_SETTING_KEYS) / sizeof(char*))
// Settings indices
enum {
ROOT_ACCESS = 0,
SU_MULTIUSER_MODE,
SU_MNT_NS
};
// Values for root_access
enum {
ROOT_ACCESS_DISABLED = 0,
ROOT_ACCESS_APPS_ONLY,
ROOT_ACCESS_ADB_ONLY,
ROOT_ACCESS_APPS_AND_ADB
};
// Values for multiuser_mode
enum {
MULTIUSER_MODE_OWNER_ONLY = 0,
MULTIUSER_MODE_OWNER_MANAGED,
MULTIUSER_MODE_USER
};
// Values for mnt_ns
enum {
NAMESPACE_MODE_GLOBAL = 0,
NAMESPACE_MODE_REQUESTER,
NAMESPACE_MODE_ISOLATE
};
struct db_settings {
int v[DB_SETTINGS_NUM];
};
#define DEFAULT_DB_SETTINGS \
(struct db_settings) { .v = { \
ROOT_ACCESS_APPS_AND_ADB, \
MULTIUSER_MODE_OWNER_ONLY, \
NAMESPACE_MODE_REQUESTER, \
}}
/**************
* DB Strings *
**************/
#define DB_STRING_KEYS \
((char *[]) { \
"requester", \
})
#define DB_STRING_NUM (sizeof(DB_STRING_KEYS) / sizeof(char*))
// Strings indices
enum {
SU_MANAGER = 0
};
struct db_strings {
char s[DB_STRING_NUM][128];
};
/*************
* SU Access *
*************/
typedef enum {
QUERY = 0,
DENY = 1,
ALLOW = 2,
} policy_t;
struct su_access {
policy_t policy;
int log;
int notify;
};
#define DEFAULT_SU_ACCESS (struct su_access) { \
.policy = QUERY, \
.log = 1, \
.notify = 1 \
}
#define SILENT_SU_ACCESS (struct su_access) { \
.policy = ALLOW, \
.log = 0, \
.notify = 0 \
}
#define NO_SU_ACCESS (struct su_access) { \
.policy = DENY, \
.log = 0, \
.notify = 0 \
}
/********************
* Public Functions *
********************/
sqlite3 *get_magiskdb();
int get_db_settings(sqlite3 *db, int key, struct db_settings *dbs);
int get_db_strings(sqlite3 *db, int key, struct db_strings *str);
int get_uid_policy(sqlite3 *db, int uid, struct su_access *su);
int validate_manager(char *alt_pkg, int userid, struct stat *st);
int exec_sql(const char *sql);
#endif //DB_H