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#ifndef _ma_tls_h_
#define _ma_tls_h_
enum enum_pvio_tls_type {
SSL_TYPE_DEFAULT=0,
#ifdef _WIN32
SSL_TYPE_SCHANNEL,
#endif
SSL_TYPE_OPENSSL,
SSL_TYPE_GNUTLS
};
#define PROTOCOL_SSLV3 0
#define PROTOCOL_TLS_1_0 1
#define PROTOCOL_TLS_1_1 2
#define PROTOCOL_TLS_1_2 3
#define PROTOCOL_TLS_1_3 4
#define PROTOCOL_UNKNOWN 5
#define PROTOCOL_MAX PROTOCOL_TLS_1_3
#define TLS_VERSION_LENGTH 64
extern char tls_library_version[TLS_VERSION_LENGTH];
typedef struct st_ma_pvio_tls {
void *data;
MARIADB_PVIO *pvio;
void *ssl;
} MARIADB_TLS;
/* Function prototypes */
/* ma_tls_start
initializes the ssl library
Parameter:
errmsg pointer to error message buffer
errmsg_len length of error message buffer
Returns:
0 success
1 if an error occurred
Notes:
On success the global variable ma_tls_initialized will be set to 1
*/
int ma_tls_start(char *errmsg, size_t errmsg_len);
/* ma_tls_end
unloads/deinitializes ssl library and unsets global variable
ma_tls_initialized
*/
void ma_tls_end(void);
/* ma_tls_init
creates a new SSL structure for a SSL connection and loads
client certificates
Parameters:
MYSQL a mysql structure
Returns:
void * a pointer to internal SSL structure
*/
void * ma_tls_init(MYSQL *mysql);
/* ma_tls_connect
performs SSL handshake
Parameters:
MARIADB_TLS MariaDB SSL container
Returns:
0 success
1 error
*/
my_bool ma_tls_connect(MARIADB_TLS *ctls);
/* ma_tls_read
reads up to length bytes from socket
Parameters:
ctls MariaDB SSL container
buffer read buffer
length buffer length
Returns:
0-n bytes read
-1 if an error occurred
*/
ssize_t ma_tls_read(MARIADB_TLS *ctls, const uchar* buffer, size_t length);
/* ma_tls_write
write buffer to socket
Parameters:
ctls MariaDB SSL container
buffer write buffer
length buffer length
Returns:
0-n bytes written
-1 if an error occurred
*/
ssize_t ma_tls_write(MARIADB_TLS *ctls, const uchar* buffer, size_t length);
/* ma_tls_close
closes SSL connection and frees SSL structure which was previously
created by ma_tls_init call
Parameters:
MARIADB_TLS MariaDB SSL container
Returns:
0 success
1 error
*/
my_bool ma_tls_close(MARIADB_TLS *ctls);
/* ma_tls_verify_server_cert
validation check of server certificate
Parameter:
MARIADB_TLS MariaDB SSL container
Returns:
ß success
1 error
*/
int ma_tls_verify_server_cert(MARIADB_TLS *ctls);
/* ma_tls_get_cipher
returns cipher for current ssl connection
Parameter:
MARIADB_TLS MariaDB SSL container
Returns:
cipher in use or
NULL on error
*/
const char *ma_tls_get_cipher(MARIADB_TLS *ssl);
/* ma_tls_get_finger_print
returns SHA1 finger print of server certificate
Parameter:
MARIADB_TLS MariaDB SSL container
fp buffer for fingerprint
fp_len buffer length
Returns:
actual size of finger print
*/
unsigned int ma_tls_get_finger_print(MARIADB_TLS *ctls, char *fp, unsigned int fp_len);
/* ma_tls_get_protocol_version
returns protocol version number in use
Parameter:
MARIADB_TLS MariaDB SSL container
Returns:
protocol number
*/
int ma_tls_get_protocol_version(MARIADB_TLS *ctls);
const char *ma_pvio_tls_get_protocol_version(MARIADB_TLS *ctls);
int ma_pvio_tls_get_protocol_version_id(MARIADB_TLS *ctls);
void ma_tls_set_connection(MYSQL *mysql);
/* Function prototypes */
MARIADB_TLS *ma_pvio_tls_init(MYSQL *mysql);
my_bool ma_pvio_tls_connect(MARIADB_TLS *ctls);
ssize_t ma_pvio_tls_read(MARIADB_TLS *ctls, const uchar *buffer, size_t length);
ssize_t ma_pvio_tls_write(MARIADB_TLS *ctls, const uchar *buffer, size_t length);
my_bool ma_pvio_tls_close(MARIADB_TLS *ctls);
int ma_pvio_tls_verify_server_cert(MARIADB_TLS *ctls);
const char *ma_pvio_tls_cipher(MARIADB_TLS *ctls);
my_bool ma_pvio_tls_check_fp(MARIADB_TLS *ctls, const char *fp, const char *fp_list);
my_bool ma_pvio_start_ssl(MARIADB_PVIO *pvio);
void ma_pvio_tls_set_connection(MYSQL *mysql);
void ma_pvio_tls_end();
#endif /* _ma_tls_h_ */
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