1 files changed, 106 insertions, 0 deletions
diff --git a/include/rxrpc/transport.h b/include/rxrpc/transport.h
new file mode 100644
index 0000000..7c7b968
--- /dev/null
+++ b/include/rxrpc/transport.h
@@ -0,0 +1,106 @@
+/* transport.h: Rx transport management
+ *
+ * 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_TRANSPORT_H
+#define _LINUX_RXRPC_TRANSPORT_H
+
+#include <rxrpc/types.h>
+#include <rxrpc/krxiod.h>
+#include <rxrpc/rxrpc.h>
+#include <linux/skbuff.h>
+#include <linux/rwsem.h>
+
+typedef int (*rxrpc_newcall_fnx_t)(struct rxrpc_call *call);
+
+extern wait_queue_head_t rxrpc_krxiod_wq;
+
+/*****************************************************************************/
+/*
+ * Rx operation specification
+ * - tables of these must be sorted by op ID so that they can be binary-chop searched
+ */
+struct rxrpc_operation
+{
+	unsigned		id;		/* operation ID */
+	size_t			asize;		/* minimum size of argument block */
+	const char		*name;		/* name of operation */
+	void			*user;		/* initial user data */
+};
+
+/*****************************************************************************/
+/*
+ * Rx transport service record
+ */
+struct rxrpc_service
+{
+	struct list_head	link;		/* link in services list on transport */
+	struct module		*owner;		/* owner module */
+	rxrpc_newcall_fnx_t	new_call;	/* new call handler function */
+	const char		*name;		/* name of service */
+	unsigned short		service_id;	/* Rx service ID */
+	rxrpc_call_attn_func_t	attn_func;	/* call requires attention callback */
+	rxrpc_call_error_func_t	error_func;	/* call error callback */
+	rxrpc_call_aemap_func_t	aemap_func;	/* abort -> errno mapping callback */
+
+	const struct rxrpc_operation	*ops_begin;	/* beginning of operations table */
+	const struct rxrpc_operation	*ops_end;	/* end of operations table */
+};
+
+/*****************************************************************************/
+/*
+ * Rx transport endpoint record
+ */
+struct rxrpc_transport
+{
+	atomic_t		usage;
+	struct socket		*socket;	/* my UDP socket */
+	struct list_head	services;	/* services listening on this socket */
+	struct list_head	link;		/* link in transport list */
+	struct list_head	proc_link;	/* link in transport proc list */
+	struct list_head	krxiodq_link;	/* krxiod attention queue link */
+	spinlock_t		lock;		/* access lock */
+	struct list_head	peer_active;	/* active peers connected to over this socket */
+	struct list_head	peer_graveyard;	/* inactive peer list */
+	spinlock_t		peer_gylock;	/* peer graveyard lock */
+	wait_queue_head_t	peer_gy_waitq;	/* wait queue hit when peer graveyard is empty */
+	rwlock_t		peer_lock;	/* peer list access lock */
+	atomic_t		peer_count;	/* number of peers */
+	struct rxrpc_peer_ops	*peer_ops;	/* default peer operations */
+	unsigned short		port;		/* port upon which listening */
+	volatile char		error_rcvd;	/* T if received ICMP error outstanding */
+};
+
+extern int rxrpc_create_transport(unsigned short port,
+				  struct rxrpc_transport **_trans);
+
+static inline void rxrpc_get_transport(struct rxrpc_transport *trans)
+{
+	BUG_ON(atomic_read(&trans->usage) <= 0);
+	atomic_inc(&trans->usage);
+	//printk("rxrpc_get_transport(%p{u=%d})\n",
+	//       trans, atomic_read(&trans->usage));
+}
+
+extern void rxrpc_put_transport(struct rxrpc_transport *trans);
+
+extern int rxrpc_add_service(struct rxrpc_transport *trans,
+			     struct rxrpc_service *srv);
+
+extern void rxrpc_del_service(struct rxrpc_transport *trans,
+			      struct rxrpc_service *srv);
+
+extern void rxrpc_trans_receive_packet(struct rxrpc_transport *trans);
+
+extern int rxrpc_trans_immediate_abort(struct rxrpc_transport *trans,
+				       struct rxrpc_message *msg,
+				       int error);
+
+#endif /* _LINUX_RXRPC_TRANSPORT_H */