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 */

 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;
18enum rxrpc_abort_reason;
19
20enum rxrpc_interruptibility {
21	RXRPC_INTERRUPTIBLE,	/* Call is interruptible */
22	RXRPC_PREINTERRUPTIBLE,	/* Call can be cancelled whilst waiting for a slot */
23	RXRPC_UNINTERRUPTIBLE,	/* Call should not be interruptible at all */
24};
25
26/*
27 * Debug ID counter for tracing.
28 */
29extern atomic_t rxrpc_debug_id;
30
31typedef void (*rxrpc_notify_rx_t)(struct sock *, struct rxrpc_call *,
32				  unsigned long);
33typedef void (*rxrpc_notify_end_tx_t)(struct sock *, struct rxrpc_call *,
34				      unsigned long);
35typedef void (*rxrpc_notify_new_call_t)(struct sock *, struct rxrpc_call *,
36					unsigned long);
37typedef void (*rxrpc_discard_new_call_t)(struct rxrpc_call *, unsigned long);
38typedef void (*rxrpc_user_attach_call_t)(struct rxrpc_call *, unsigned long);
39
40void rxrpc_kernel_new_call_notification(struct socket *,
41					rxrpc_notify_new_call_t,
42					rxrpc_discard_new_call_t);
43struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *,
44					   struct sockaddr_rxrpc *,
45					   struct key *,
46					   unsigned long,
47					   s64,
48					   gfp_t,
49					   rxrpc_notify_rx_t,
50					   bool,
51					   enum rxrpc_interruptibility,
52					   unsigned int);
53int rxrpc_kernel_send_data(struct socket *, struct rxrpc_call *,
54			   struct msghdr *, size_t,
55			   rxrpc_notify_end_tx_t);
56int rxrpc_kernel_recv_data(struct socket *, struct rxrpc_call *,
57			   struct iov_iter *, size_t *, bool, u32 *, u16 *);
58bool rxrpc_kernel_abort_call(struct socket *, struct rxrpc_call *,
59			     u32, int, enum rxrpc_abort_reason);
60void rxrpc_kernel_end_call(struct socket *, struct rxrpc_call *);
61void rxrpc_kernel_get_peer(struct socket *, struct rxrpc_call *,
62			   struct sockaddr_rxrpc *);
63bool rxrpc_kernel_get_srtt(struct socket *, struct rxrpc_call *, u32 *);
64int rxrpc_kernel_charge_accept(struct socket *, rxrpc_notify_rx_t,
65			       rxrpc_user_attach_call_t, unsigned long, gfp_t,
66			       unsigned int);
67void rxrpc_kernel_set_tx_length(struct socket *, struct rxrpc_call *, s64);
68bool rxrpc_kernel_check_life(const struct socket *, const struct rxrpc_call *);
69u32 rxrpc_kernel_get_epoch(struct socket *, struct rxrpc_call *);
70void rxrpc_kernel_set_max_life(struct socket *, struct rxrpc_call *,
71			       unsigned long);
72
73int rxrpc_sock_set_min_security_level(struct sock *sk, unsigned int val);
74int rxrpc_sock_set_security_keyring(struct sock *, struct key *);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
75
76#endif /* _NET_RXRPC_H */