1 /* RxRPC kernel service interface definitions
2  *
3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4  * Written by David Howells (dhowells@redhat.com)
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version
9  * 2 of the License, or (at your option) any later version.
10  */
11 
12 #ifndef _NET_RXRPC_H
13 #define _NET_RXRPC_H
14 
15 #include <linux/rxrpc.h>
16 
17 struct rxrpc_call;
18 
19 /*
20  * the mark applied to socket buffers that may be intercepted
21  */
22 enum {
23 	RXRPC_SKB_MARK_DATA,		/* data message */
24 	RXRPC_SKB_MARK_FINAL_ACK,	/* final ACK received message */
25 	RXRPC_SKB_MARK_BUSY,		/* server busy message */
26 	RXRPC_SKB_MARK_REMOTE_ABORT,	/* remote abort message */
27 	RXRPC_SKB_MARK_NET_ERROR,	/* network error message */
28 	RXRPC_SKB_MARK_LOCAL_ERROR,	/* local error message */
29 	RXRPC_SKB_MARK_NEW_CALL,	/* local error message */
30 };
31 
32 typedef void (*rxrpc_interceptor_t)(struct sock *, unsigned long,
33 				    struct sk_buff *);
34 extern void rxrpc_kernel_intercept_rx_messages(struct socket *,
35 					       rxrpc_interceptor_t);
36 extern struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *,
37 						  struct sockaddr_rxrpc *,
38 						  struct key *,
39 						  unsigned long,
40 						  gfp_t);
41 extern int rxrpc_kernel_send_data(struct rxrpc_call *, struct msghdr *,
42 				  size_t);
43 extern void rxrpc_kernel_abort_call(struct rxrpc_call *, u32);
44 extern void rxrpc_kernel_end_call(struct rxrpc_call *);
45 extern bool rxrpc_kernel_is_data_last(struct sk_buff *);
46 extern u32 rxrpc_kernel_get_abort_code(struct sk_buff *);
47 extern int rxrpc_kernel_get_error_number(struct sk_buff *);
48 extern void rxrpc_kernel_data_delivered(struct sk_buff *);
49 extern void rxrpc_kernel_free_skb(struct sk_buff *);
50 extern struct rxrpc_call *rxrpc_kernel_accept_call(struct socket *,
51 						   unsigned long);
52 extern int rxrpc_kernel_reject_call(struct socket *);
53 
54 #endif /* _NET_RXRPC_H */
55