Split off listener functionality and move SSL initiation from service to listener. Put GWPROTOCOL in its own header file.

2016-01-26 16:08:02 +00:00
parent 1f241a5ed1
commit e58148356d
15 changed files with 663 additions and 157 deletions
--- a/server/include/gw_protocol.h
+++ b/server/include/gw_protocol.h
@ -0,0 +1,92 @@
+#ifndef GW_PROTOCOL_H
+#define GW_PROTOCOL_H
+/*
+ * This file is distributed as part of the MariaDB Corporation MaxScale.  It is free
+ * software: you can redistribute it and/or modify it under the terms of the
+ * GNU General Public License as published by the Free Software Foundation,
+ * version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Copyright MariaDB Corporation Ab 2013-2014
+ */
+
+/**
+ * @file protocol.h
+ *
+ * The listener definitions for MaxScale
+ *
+ * @verbatim
+ * Revision History
+ *
+ * Date         Who                     Description
+ * 22/01/16     Martin Brampton         Initial implementation
+ *
+ * @endverbatim
+ */
+
+#include <buffer.h>
+#include <openssl/crypto.h>
+#include <openssl/ssl.h>
+#include <openssl/err.h>
+#include <openssl/dh.h>
+
+struct dcb;
+struct server;
+struct session;
+
+/**
+ * @verbatim
+ * The operations that can be performed on the descriptor
+ *
+ *      read            EPOLLIN handler for the socket
+ *      write           MaxScale data write entry point
+ *      write_ready     EPOLLOUT handler for the socket, indicates
+ *                      that the socket is ready to send more data
+ *      error           EPOLLERR handler for the socket
+ *      hangup          EPOLLHUP handler for the socket
+ *      accept          Accept handler for listener socket only
+ *      connect         Create a connection to the specified server
+ *                      for the session pased in
+ *      close           MaxScale close entry point for the socket
+ *      listen          Create a listener for the protocol
+ *      auth            Authentication entry point
+ *  session         Session handling entry point
+ * @endverbatim
+ *
+ * This forms the "module object" for protocol modules within the gateway.
+ *
+ * @see load_module
+ */
+typedef struct gw_protocol
+{
+    int (*read)(struct dcb *);
+    int (*write)(struct dcb *, GWBUF *);
+    int (*write_ready)(struct dcb *);
+    int (*error)(struct dcb *);
+    int (*hangup)(struct dcb *);
+    int (*accept)(struct dcb *);
+    int (*connect)(struct dcb *, struct server *, struct session *);
+    int (*close)(struct dcb *);
+    int (*listen)(struct dcb *, char *);
+    int (*auth)(struct dcb *, struct server *, struct session *, GWBUF *);
+    int (*session)(struct dcb *, void *);
+} GWPROTOCOL;
+
+/**
+ * The GWPROTOCOL version data. The following should be updated whenever
+ * the GWPROTOCOL structure is changed. See the rules defined in modinfo.h
+ * that define how these numbers should change.
+ */
+#define GWPROTOCOL_VERSION      {1, 0, 0}
+
+
+#endif /* GW_PROTOCOL_H */
+