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