1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/* RxRPC kernel service interface definitions
 3 *
 4 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
 5 * Written by David Howells (dhowells@redhat.com)
 
 
 
 
 
 6 */
 7
 8#ifndef _NET_RXRPC_H
 9#define _NET_RXRPC_H
10
11#include <linux/rxrpc.h>
12#include <linux/ktime.h>
13
14struct key;
15struct sock;
16struct socket;
17struct rxrpc_call;
18
19/*
20 * Debug ID counter for tracing.
21 */
22extern atomic_t rxrpc_debug_id;
23
24typedef void (*rxrpc_notify_rx_t)(struct sock *, struct rxrpc_call *,
25				  unsigned long);
26typedef void (*rxrpc_notify_end_tx_t)(struct sock *, struct rxrpc_call *,
27				      unsigned long);
28typedef void (*rxrpc_notify_new_call_t)(struct sock *, struct rxrpc_call *,
29					unsigned long);
30typedef void (*rxrpc_discard_new_call_t)(struct rxrpc_call *, unsigned long);
31typedef void (*rxrpc_user_attach_call_t)(struct rxrpc_call *, unsigned long);
32
33void rxrpc_kernel_new_call_notification(struct socket *,
34					rxrpc_notify_new_call_t,
35					rxrpc_discard_new_call_t);
36struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *,
37					   struct sockaddr_rxrpc *,
38					   struct key *,
39					   unsigned long,
40					   s64,
41					   gfp_t,
42					   rxrpc_notify_rx_t,
43					   bool,
44					   bool,
45					   unsigned int);
46int rxrpc_kernel_send_data(struct socket *, struct rxrpc_call *,
47			   struct msghdr *, size_t,
48			   rxrpc_notify_end_tx_t);
49int rxrpc_kernel_recv_data(struct socket *, struct rxrpc_call *,
50			   struct iov_iter *, bool, u32 *, u16 *);
51bool rxrpc_kernel_abort_call(struct socket *, struct rxrpc_call *,
52			     u32, int, const char *);
53void rxrpc_kernel_end_call(struct socket *, struct rxrpc_call *);
54void rxrpc_kernel_get_peer(struct socket *, struct rxrpc_call *,
55			   struct sockaddr_rxrpc *);
56u64 rxrpc_kernel_get_rtt(struct socket *, struct rxrpc_call *);
57int rxrpc_kernel_charge_accept(struct socket *, rxrpc_notify_rx_t,
58			       rxrpc_user_attach_call_t, unsigned long, gfp_t,
59			       unsigned int);
60void rxrpc_kernel_set_tx_length(struct socket *, struct rxrpc_call *, s64);
61bool rxrpc_kernel_check_life(const struct socket *, const struct rxrpc_call *,
62			     u32 *);
63void rxrpc_kernel_probe_life(struct socket *, struct rxrpc_call *);
64u32 rxrpc_kernel_get_epoch(struct socket *, struct rxrpc_call *);
65bool rxrpc_kernel_get_reply_time(struct socket *, struct rxrpc_call *,
66				 ktime_t *);
67bool rxrpc_kernel_call_is_complete(struct rxrpc_call *);
68void rxrpc_kernel_set_max_life(struct socket *, struct rxrpc_call *,
69			       unsigned long);
70
71#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 */