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Filename :
ma_tls.h
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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_ */