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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;
18struct rxrpc_peer;
19enum rxrpc_abort_reason;
20
21enum rxrpc_interruptibility {
22 RXRPC_INTERRUPTIBLE, /* Call is interruptible */
23 RXRPC_PREINTERRUPTIBLE, /* Call can be cancelled whilst waiting for a slot */
24 RXRPC_UNINTERRUPTIBLE, /* Call should not be interruptible at all */
25};
26
27/*
28 * Debug ID counter for tracing.
29 */
30extern atomic_t rxrpc_debug_id;
31
32typedef void (*rxrpc_notify_rx_t)(struct sock *, struct rxrpc_call *,
33 unsigned long);
34typedef void (*rxrpc_notify_end_tx_t)(struct sock *, struct rxrpc_call *,
35 unsigned long);
36typedef void (*rxrpc_notify_new_call_t)(struct sock *, struct rxrpc_call *,
37 unsigned long);
38typedef void (*rxrpc_discard_new_call_t)(struct rxrpc_call *, unsigned long);
39typedef void (*rxrpc_user_attach_call_t)(struct rxrpc_call *, unsigned long);
40
41void rxrpc_kernel_new_call_notification(struct socket *,
42 rxrpc_notify_new_call_t,
43 rxrpc_discard_new_call_t);
44struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *sock,
45 struct rxrpc_peer *peer,
46 struct key *key,
47 unsigned long user_call_ID,
48 s64 tx_total_len,
49 u32 hard_timeout,
50 gfp_t gfp,
51 rxrpc_notify_rx_t notify_rx,
52 u16 service_id,
53 bool upgrade,
54 enum rxrpc_interruptibility interruptibility,
55 unsigned int debug_id);
56int rxrpc_kernel_send_data(struct socket *, struct rxrpc_call *,
57 struct msghdr *, size_t,
58 rxrpc_notify_end_tx_t);
59int rxrpc_kernel_recv_data(struct socket *, struct rxrpc_call *,
60 struct iov_iter *, size_t *, bool, u32 *, u16 *);
61bool rxrpc_kernel_abort_call(struct socket *, struct rxrpc_call *,
62 u32, int, enum rxrpc_abort_reason);
63void rxrpc_kernel_shutdown_call(struct socket *sock, struct rxrpc_call *call);
64void rxrpc_kernel_put_call(struct socket *sock, struct rxrpc_call *call);
65struct rxrpc_peer *rxrpc_kernel_lookup_peer(struct socket *sock,
66 struct sockaddr_rxrpc *srx, gfp_t gfp);
67void rxrpc_kernel_put_peer(struct rxrpc_peer *peer);
68struct rxrpc_peer *rxrpc_kernel_get_peer(struct rxrpc_peer *peer);
69struct rxrpc_peer *rxrpc_kernel_get_call_peer(struct socket *sock, struct rxrpc_call *call);
70const struct sockaddr_rxrpc *rxrpc_kernel_remote_srx(const struct rxrpc_peer *peer);
71const struct sockaddr *rxrpc_kernel_remote_addr(const struct rxrpc_peer *peer);
72unsigned int rxrpc_kernel_get_srtt(const struct rxrpc_peer *);
73int rxrpc_kernel_charge_accept(struct socket *, rxrpc_notify_rx_t,
74 rxrpc_user_attach_call_t, unsigned long, gfp_t,
75 unsigned int);
76void rxrpc_kernel_set_tx_length(struct socket *, struct rxrpc_call *, s64);
77bool rxrpc_kernel_check_life(const struct socket *, const struct rxrpc_call *);
78u32 rxrpc_kernel_get_epoch(struct socket *, struct rxrpc_call *);
79void rxrpc_kernel_set_max_life(struct socket *, struct rxrpc_call *,
80 unsigned long);
81
82int rxrpc_sock_set_min_security_level(struct sock *sk, unsigned int val);
83int rxrpc_sock_set_security_keyring(struct sock *, struct key *);
84
85#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 */