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
14 struct key;
15 struct sock;
16 struct socket;
17 struct rxrpc_call;
18 struct rxrpc_peer;
19 enum rxrpc_abort_reason;
20
21 enum 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 */
30 extern atomic_t rxrpc_debug_id;
31
32 typedef void (*rxrpc_notify_rx_t)(struct sock *, struct rxrpc_call *,
33 unsigned long);
34 typedef void (*rxrpc_notify_end_tx_t)(struct sock *, struct rxrpc_call *,
35 unsigned long);
36 typedef void (*rxrpc_notify_new_call_t)(struct sock *, struct rxrpc_call *,
37 unsigned long);
38 typedef void (*rxrpc_discard_new_call_t)(struct rxrpc_call *, unsigned long);
39 typedef void (*rxrpc_user_attach_call_t)(struct rxrpc_call *, unsigned long);
40
41 void rxrpc_kernel_new_call_notification(struct socket *,
42 rxrpc_notify_new_call_t,
43 rxrpc_discard_new_call_t);
44 struct 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);
56 int rxrpc_kernel_send_data(struct socket *, struct rxrpc_call *,
57 struct msghdr *, size_t,
58 rxrpc_notify_end_tx_t);
59 int rxrpc_kernel_recv_data(struct socket *, struct rxrpc_call *,
60 struct iov_iter *, size_t *, bool, u32 *, u16 *);
61 bool rxrpc_kernel_abort_call(struct socket *, struct rxrpc_call *,
62 u32, int, enum rxrpc_abort_reason);
63 void rxrpc_kernel_shutdown_call(struct socket *sock, struct rxrpc_call *call);
64 void rxrpc_kernel_put_call(struct socket *sock, struct rxrpc_call *call);
65 struct rxrpc_peer *rxrpc_kernel_lookup_peer(struct socket *sock,
66 struct sockaddr_rxrpc *srx, gfp_t gfp);
67 void rxrpc_kernel_put_peer(struct rxrpc_peer *peer);
68 struct rxrpc_peer *rxrpc_kernel_get_peer(struct rxrpc_peer *peer);
69 struct rxrpc_peer *rxrpc_kernel_get_call_peer(struct socket *sock, struct rxrpc_call *call);
70 const struct sockaddr_rxrpc *rxrpc_kernel_remote_srx(const struct rxrpc_peer *peer);
71 const struct sockaddr *rxrpc_kernel_remote_addr(const struct rxrpc_peer *peer);
72 unsigned int rxrpc_kernel_get_srtt(const struct rxrpc_peer *);
73 int rxrpc_kernel_charge_accept(struct socket *, rxrpc_notify_rx_t,
74 rxrpc_user_attach_call_t, unsigned long, gfp_t,
75 unsigned int);
76 void rxrpc_kernel_set_tx_length(struct socket *, struct rxrpc_call *, s64);
77 bool rxrpc_kernel_check_life(const struct socket *, const struct rxrpc_call *);
78 u32 rxrpc_kernel_get_epoch(struct socket *, struct rxrpc_call *);
79 void rxrpc_kernel_set_max_life(struct socket *, struct rxrpc_call *,
80 unsigned long);
81
82 int rxrpc_sock_set_min_security_level(struct sock *sk, unsigned int val);
83 int rxrpc_sock_set_security_keyring(struct sock *, struct key *);
84
85 #endif /* _NET_RXRPC_H */
86
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