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MXS-1267: Expose MySQL backend authentication

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Refactored the backend authentication functions so that they can be
exposed to the tee filter. This allows the tee filter to use the same
functions as the protocol modules use without having to reimplement them
inside the tee filter.
This commit is contained in:
Markus Mäkelä
2017-05-23 10:34:59 +03:00
parent 7e70b8c58b
commit e43cdcf741
3 changed files with 110 additions and 149 deletions
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25
server/modules/protocol/MySQL/MySQLBackend/mysql_backend.c
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@ -26,30 +26,6 @@
/*
* MySQL Protocol module for handling the protocol between the gateway
* and the backend MySQL database.
*
* Revision History
* Date Who Description
* 14/06/2013 Mark Riddoch Initial version
* 17/06/2013 Massimiliano Pinto Added MaxScale To Backends routines
* 01/07/2013 Massimiliano Pinto Put Log Manager example code behind SS_DEBUG macros.
* 03/07/2013 Massimiliano Pinto Added delayq for incoming data before mysql connection
* 04/07/2013 Massimiliano Pinto Added asynchronous MySQL protocol connection to backend
* 05/07/2013 Massimiliano Pinto Added closeSession if backend auth fails
* 12/07/2013 Massimiliano Pinto Added Mysql Change User via dcb->func.auth()
* 15/07/2013 Massimiliano Pinto Added Mysql session change via dcb->func.session()
* 17/07/2013 Massimiliano Pinto Added dcb->command update from gwbuf->command for proper routing
* server replies to client via router->clientReply
* 04/09/2013 Massimiliano Pinto Added dcb->session and dcb->session->client checks for NULL
* 12/09/2013 Massimiliano Pinto Added checks in gw_read_backend_event() for gw_read_backend_handshake
* 27/09/2013 Massimiliano Pinto Changed in gw_read_backend_event the check for dcb_read(),
* now is if rc less than 0
* 24/10/2014 Massimiliano Pinto Added Mysql user@host @db authentication support
* 10/11/2014 Massimiliano Pinto Client charset is passed to backend
* 19/06/2015 Martin Brampton Persistent connection handling
* 07/10/2015 Martin Brampton Remove calls to dcb_close - should be done by routers
* 27/10/2015 Martin Brampton Test for RCAP_TYPE_NO_RSESSION before calling clientReply
* 23/05/2016 Martin Brampton Provide for backend SSL
*
*/
static int gw_create_backend_connection(DCB *backend, SERVER *server, MXS_SESSION *in_session);
@ -68,7 +44,6 @@ extern char* create_auth_failed_msg(GWBUF* readbuf, char* hostaddr, uint8_t* sha
static bool sescmd_response_complete(DCB* dcb);
static void gw_reply_on_error(DCB *dcb, mxs_auth_state_t state);
static int gw_read_and_write(DCB *dcb);
static int gw_decode_mysql_server_handshake(MySQLProtocol *conn, uint8_t *payload);
static int gw_do_connect_to_backend(char *host, int port, int *fd);
static void inline close_socket(int socket);
static GWBUF *gw_create_change_user_packet(MYSQL_session* mses,