xref: /kernel/linux/linux-6.6/include/net/af_rxrpc.h (revision 62306a36) 
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 *sock,
44					   struct sockaddr_rxrpc *srx,
45					   struct key *key,
46					   unsigned long user_call_ID,
47					   s64 tx_total_len,
48					   u32 hard_timeout,
49					   gfp_t gfp,
50					   rxrpc_notify_rx_t notify_rx,
51					   bool upgrade,
52					   enum rxrpc_interruptibility interruptibility,
53					   unsigned int debug_id);
54int rxrpc_kernel_send_data(struct socket *, struct rxrpc_call *,
55			   struct msghdr *, size_t,
56			   rxrpc_notify_end_tx_t);
57int rxrpc_kernel_recv_data(struct socket *, struct rxrpc_call *,
58			   struct iov_iter *, size_t *, bool, u32 *, u16 *);
59bool rxrpc_kernel_abort_call(struct socket *, struct rxrpc_call *,
60			     u32, int, enum rxrpc_abort_reason);
61void rxrpc_kernel_shutdown_call(struct socket *sock, struct rxrpc_call *call);
62void rxrpc_kernel_put_call(struct socket *sock, struct rxrpc_call *call);
63void rxrpc_kernel_get_peer(struct socket *, struct rxrpc_call *,
64			   struct sockaddr_rxrpc *);
65bool rxrpc_kernel_get_srtt(struct socket *, struct rxrpc_call *, u32 *);
66int rxrpc_kernel_charge_accept(struct socket *, rxrpc_notify_rx_t,
67			       rxrpc_user_attach_call_t, unsigned long, gfp_t,
68			       unsigned int);
69void rxrpc_kernel_set_tx_length(struct socket *, struct rxrpc_call *, s64);
70bool rxrpc_kernel_check_life(const struct socket *, const struct rxrpc_call *);
71u32 rxrpc_kernel_get_epoch(struct socket *, 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);
76int rxrpc_sock_set_security_keyring(struct sock *, struct key *);
77
78#endif /* _NET_RXRPC_H */
79