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 *);
34void rxrpc_kernel_intercept_rx_messages(struct socket *, rxrpc_interceptor_t);
35struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *,
36					   struct sockaddr_rxrpc *,
37					   struct key *,
38					   unsigned long,
39					   gfp_t);
40int rxrpc_kernel_send_data(struct rxrpc_call *, struct msghdr *, size_t);
41void rxrpc_kernel_abort_call(struct rxrpc_call *, u32);
42void rxrpc_kernel_end_call(struct rxrpc_call *);
43bool rxrpc_kernel_is_data_last(struct sk_buff *);
44u32 rxrpc_kernel_get_abort_code(struct sk_buff *);
45int rxrpc_kernel_get_error_number(struct sk_buff *);
46void rxrpc_kernel_data_delivered(struct sk_buff *);
47void rxrpc_kernel_free_skb(struct sk_buff *);
48struct rxrpc_call *rxrpc_kernel_accept_call(struct socket *, unsigned long);
49int rxrpc_kernel_reject_call(struct socket *);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
50
51#endif /* _NET_RXRPC_H */

 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
19enum rxrpc_interruptibility {
20	RXRPC_INTERRUPTIBLE,	/* Call is interruptible */
21	RXRPC_PREINTERRUPTIBLE,	/* Call can be cancelled whilst waiting for a slot */
22	RXRPC_UNINTERRUPTIBLE,	/* Call should not be interruptible at all */
23};
24
25/*
26 * Debug ID counter for tracing.
27 */
28extern atomic_t rxrpc_debug_id;
29
30typedef void (*rxrpc_notify_rx_t)(struct sock *, struct rxrpc_call *,
31				  unsigned long);
32typedef void (*rxrpc_notify_end_tx_t)(struct sock *, struct rxrpc_call *,
33				      unsigned long);
34typedef void (*rxrpc_notify_new_call_t)(struct sock *, struct rxrpc_call *,
35					unsigned long);
36typedef void (*rxrpc_discard_new_call_t)(struct rxrpc_call *, unsigned long);
37typedef void (*rxrpc_user_attach_call_t)(struct rxrpc_call *, unsigned long);
38
39void rxrpc_kernel_new_call_notification(struct socket *,
40					rxrpc_notify_new_call_t,
41					rxrpc_discard_new_call_t);
42struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *,
43					   struct sockaddr_rxrpc *,
44					   struct key *,
45					   unsigned long,
46					   s64,
47					   gfp_t,
48					   rxrpc_notify_rx_t,
49					   bool,
50					   enum rxrpc_interruptibility,
51					   unsigned int);
52int rxrpc_kernel_send_data(struct socket *, struct rxrpc_call *,
53			   struct msghdr *, size_t,
54			   rxrpc_notify_end_tx_t);
55int rxrpc_kernel_recv_data(struct socket *, struct rxrpc_call *,
56			   struct iov_iter *, size_t *, bool, u32 *, u16 *);
57bool rxrpc_kernel_abort_call(struct socket *, struct rxrpc_call *,
58			     u32, int, const char *);
59void rxrpc_kernel_end_call(struct socket *, struct rxrpc_call *);
60void rxrpc_kernel_get_peer(struct socket *, struct rxrpc_call *,
61			   struct sockaddr_rxrpc *);
62bool rxrpc_kernel_get_srtt(struct socket *, struct rxrpc_call *, u32 *);
63int rxrpc_kernel_charge_accept(struct socket *, rxrpc_notify_rx_t,
64			       rxrpc_user_attach_call_t, unsigned long, gfp_t,
65			       unsigned int);
66void rxrpc_kernel_set_tx_length(struct socket *, struct rxrpc_call *, s64);
67bool rxrpc_kernel_check_life(const struct socket *, const struct rxrpc_call *);
68u32 rxrpc_kernel_get_epoch(struct socket *, struct rxrpc_call *);
69bool rxrpc_kernel_get_reply_time(struct socket *, struct rxrpc_call *,
70				 ktime_t *);
71bool rxrpc_kernel_call_is_complete(struct rxrpc_call *);
72void rxrpc_kernel_set_max_life(struct socket *, struct rxrpc_call *,
73			       unsigned long);
74
75int rxrpc_sock_set_min_security_level(struct sock *sk, unsigned int val);
76
77#endif /* _NET_RXRPC_H */