1 files changed, 83 insertions, 0 deletions
diff --git a/include/rxrpc/connection.h b/include/rxrpc/connection.h
new file mode 100644
index 00000000000..41e6781ad06
--- /dev/null
+++ b/include/rxrpc/connection.h
@@ -0,0 +1,83 @@
+/* connection.h: Rx connection record
+ *
+ * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program 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; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_RXRPC_CONNECTION_H
+#define _LINUX_RXRPC_CONNECTION_H
+
+#include <rxrpc/types.h>
+#include <rxrpc/krxtimod.h>
+
+struct sk_buff;
+
+/*****************************************************************************/
+/*
+ * Rx connection
+ * - connections are matched by (rmt_port,rmt_addr,service_id,conn_id,clientflag)
+ * - connections only retain a refcount on the peer when they are active
+ * - connections with refcount==0 are inactive and reside in the peer's graveyard
+ */
+struct rxrpc_connection
+{
+	atomic_t		usage;
+	struct rxrpc_transport	*trans;		/* transport endpoint */
+	struct rxrpc_peer	*peer;		/* peer from/to which connected */
+	struct rxrpc_service	*service;	/* responsible service (inbound conns) */
+	struct rxrpc_timer	timeout;	/* decaching timer */
+	struct list_head	link;		/* link in peer's list */
+	struct list_head	proc_link;	/* link in proc list */
+	struct list_head	err_link;	/* link in ICMP error processing list */
+	struct list_head	id_link;	/* link in ID grant list */
+	struct sockaddr_in	addr;		/* remote address */
+	struct rxrpc_call	*channels[4];	/* channels (active calls) */
+	wait_queue_head_t	chanwait;	/* wait for channel to become available */
+	spinlock_t		lock;		/* access lock */
+	struct timeval		atime;		/* last access time */
+	size_t			mtu_size;	/* MTU size for outbound messages */
+	unsigned		call_counter;	/* call ID counter */
+	rxrpc_serial_t		serial_counter;	/* packet serial number counter */
+
+	/* the following should all be in net order */
+	__be32			in_epoch;	/* peer's epoch */
+	__be32			out_epoch;	/* my epoch */
+	__be32			conn_id;	/* connection ID, appropriately shifted */
+	__be16			service_id;	/* service ID */
+	uint8_t			security_ix;	/* security ID */
+	uint8_t			in_clientflag;	/* RXRPC_CLIENT_INITIATED if we are server */
+	uint8_t			out_clientflag;	/* RXRPC_CLIENT_INITIATED if we are client */
+};
+
+extern int rxrpc_create_connection(struct rxrpc_transport *trans,
+				   __be16 port,
+				   __be32 addr,
+				   uint16_t service_id,
+				   void *security,
+				   struct rxrpc_connection **_conn);
+
+extern int rxrpc_connection_lookup(struct rxrpc_peer *peer,
+				   struct rxrpc_message *msg,
+				   struct rxrpc_connection **_conn);
+
+static inline void rxrpc_get_connection(struct rxrpc_connection *conn)
+{
+	BUG_ON(atomic_read(&conn->usage)<0);
+	atomic_inc(&conn->usage);
+	//printk("rxrpc_get_conn(%p{u=%d})\n",conn,atomic_read(&conn->usage));
+}
+
+extern void rxrpc_put_connection(struct rxrpc_connection *conn);
+
+extern int rxrpc_conn_receive_call_packet(struct rxrpc_connection *conn,
+					  struct rxrpc_call *call,
+					  struct rxrpc_message *msg);
+
+extern void rxrpc_conn_handle_error(struct rxrpc_connection *conn, int local, int errno);
+
+#endif /* _LINUX_RXRPC_CONNECTION_H */