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