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
17struct key;
18struct sock;
19struct socket;
20struct rxrpc_call;
21
22/*
23 * Call completion condition (state == RXRPC_CALL_COMPLETE).
24 */
25enum rxrpc_call_completion {
26	RXRPC_CALL_SUCCEEDED,		/* - Normal termination */
27	RXRPC_CALL_REMOTELY_ABORTED,	/* - call aborted by peer */
28	RXRPC_CALL_LOCALLY_ABORTED,	/* - call aborted locally on error or close */
29	RXRPC_CALL_LOCAL_ERROR,		/* - call failed due to local error */
30	RXRPC_CALL_NETWORK_ERROR,	/* - call terminated by network error */
31	NR__RXRPC_CALL_COMPLETIONS
 
32};
33
34/*
35 * Debug ID counter for tracing.
36 */
37extern atomic_t rxrpc_debug_id;
38
39typedef void (*rxrpc_notify_rx_t)(struct sock *, struct rxrpc_call *,
40				  unsigned long);
41typedef void (*rxrpc_notify_end_tx_t)(struct sock *, struct rxrpc_call *,
42				      unsigned long);
43typedef void (*rxrpc_notify_new_call_t)(struct sock *, struct rxrpc_call *,
44					unsigned long);
45typedef void (*rxrpc_discard_new_call_t)(struct rxrpc_call *, unsigned long);
46typedef void (*rxrpc_user_attach_call_t)(struct rxrpc_call *, unsigned long);
47
48void rxrpc_kernel_new_call_notification(struct socket *,
49					rxrpc_notify_new_call_t,
50					rxrpc_discard_new_call_t);
51struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *,
52					   struct sockaddr_rxrpc *,
53					   struct key *,
54					   unsigned long,
55					   s64,
56					   gfp_t,
57					   rxrpc_notify_rx_t,
58					   bool,
59					   unsigned int);
60int rxrpc_kernel_send_data(struct socket *, struct rxrpc_call *,
61			   struct msghdr *, size_t,
62			   rxrpc_notify_end_tx_t);
63int rxrpc_kernel_recv_data(struct socket *, struct rxrpc_call *,
64			   void *, size_t, size_t *, bool, u32 *, u16 *);
65bool rxrpc_kernel_abort_call(struct socket *, struct rxrpc_call *,
66			     u32, int, const char *);
67void rxrpc_kernel_end_call(struct socket *, struct rxrpc_call *);
68void rxrpc_kernel_get_peer(struct socket *, struct rxrpc_call *,
69			   struct sockaddr_rxrpc *);
70u64 rxrpc_kernel_get_rtt(struct socket *, struct rxrpc_call *);
71int rxrpc_kernel_charge_accept(struct socket *, rxrpc_notify_rx_t,
72			       rxrpc_user_attach_call_t, unsigned long, gfp_t,
73			       unsigned int);
74void rxrpc_kernel_set_tx_length(struct socket *, struct rxrpc_call *, s64);
75int rxrpc_kernel_retry_call(struct socket *, struct rxrpc_call *,
76			    struct sockaddr_rxrpc *, struct key *);
77int rxrpc_kernel_check_call(struct socket *, struct rxrpc_call *,
78			    enum rxrpc_call_completion *, u32 *);
79u32 rxrpc_kernel_check_life(struct socket *, struct rxrpc_call *);
80
81#endif /* _NET_RXRPC_H */

 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
 
 
 
17struct rxrpc_call;
18
19/*
20 * the mark applied to socket buffers that may be intercepted
21 */
22enum {
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
32typedef void (*rxrpc_interceptor_t)(struct sock *, unsigned long,
33				    struct sk_buff *);
34extern void rxrpc_kernel_intercept_rx_messages(struct socket *,
35					       rxrpc_interceptor_t);
36extern struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *,
37						  struct sockaddr_rxrpc *,
38						  struct key *,
39						  unsigned long,
40						  gfp_t);
41extern int rxrpc_kernel_send_data(struct rxrpc_call *, struct msghdr *,
42				  size_t);
43extern void rxrpc_kernel_abort_call(struct rxrpc_call *, u32);
44extern void rxrpc_kernel_end_call(struct rxrpc_call *);
45extern bool rxrpc_kernel_is_data_last(struct sk_buff *);
46extern u32 rxrpc_kernel_get_abort_code(struct sk_buff *);
47extern int rxrpc_kernel_get_error_number(struct sk_buff *);
48extern void rxrpc_kernel_data_delivered(struct sk_buff *);
49extern void rxrpc_kernel_free_skb(struct sk_buff *);
50extern struct rxrpc_call *rxrpc_kernel_accept_call(struct socket *,
51						   unsigned long);
52extern int rxrpc_kernel_reject_call(struct socket *);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
53
54#endif /* _NET_RXRPC_H */