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 #include <linux/ktime.h> 17 18 struct key; 19 struct sock; 20 struct socket; 21 struct rxrpc_call; 22 23 /* 24 * Call completion condition (state == RXRPC_CALL_COMPLETE). 25 */ 26 enum rxrpc_call_completion { 27 RXRPC_CALL_SUCCEEDED, /* - Normal termination */ 28 RXRPC_CALL_REMOTELY_ABORTED, /* - call aborted by peer */ 29 RXRPC_CALL_LOCALLY_ABORTED, /* - call aborted locally on error or close */ 30 RXRPC_CALL_LOCAL_ERROR, /* - call failed due to local error */ 31 RXRPC_CALL_NETWORK_ERROR, /* - call terminated by network error */ 32 NR__RXRPC_CALL_COMPLETIONS 33 }; 34 35 /* 36 * Debug ID counter for tracing. 37 */ 38 extern atomic_t rxrpc_debug_id; 39 40 typedef void (*rxrpc_notify_rx_t)(struct sock *, struct rxrpc_call *, 41 unsigned long); 42 typedef void (*rxrpc_notify_end_tx_t)(struct sock *, struct rxrpc_call *, 43 unsigned long); 44 typedef void (*rxrpc_notify_new_call_t)(struct sock *, struct rxrpc_call *, 45 unsigned long); 46 typedef void (*rxrpc_discard_new_call_t)(struct rxrpc_call *, unsigned long); 47 typedef void (*rxrpc_user_attach_call_t)(struct rxrpc_call *, unsigned long); 48 49 void rxrpc_kernel_new_call_notification(struct socket *, 50 rxrpc_notify_new_call_t, 51 rxrpc_discard_new_call_t); 52 struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *, 53 struct sockaddr_rxrpc *, 54 struct key *, 55 unsigned long, 56 s64, 57 gfp_t, 58 rxrpc_notify_rx_t, 59 bool, 60 unsigned int); 61 int rxrpc_kernel_send_data(struct socket *, struct rxrpc_call *, 62 struct msghdr *, size_t, 63 rxrpc_notify_end_tx_t); 64 int rxrpc_kernel_recv_data(struct socket *, struct rxrpc_call *, 65 struct iov_iter *, bool, u32 *, u16 *); 66 bool rxrpc_kernel_abort_call(struct socket *, struct rxrpc_call *, 67 u32, int, const char *); 68 void rxrpc_kernel_end_call(struct socket *, struct rxrpc_call *); 69 void rxrpc_kernel_get_peer(struct socket *, struct rxrpc_call *, 70 struct sockaddr_rxrpc *); 71 u64 rxrpc_kernel_get_rtt(struct socket *, struct rxrpc_call *); 72 int rxrpc_kernel_charge_accept(struct socket *, rxrpc_notify_rx_t, 73 rxrpc_user_attach_call_t, unsigned long, gfp_t, 74 unsigned int); 75 void rxrpc_kernel_set_tx_length(struct socket *, struct rxrpc_call *, s64); 76 int rxrpc_kernel_retry_call(struct socket *, struct rxrpc_call *, 77 struct sockaddr_rxrpc *, struct key *); 78 int rxrpc_kernel_check_call(struct socket *, struct rxrpc_call *, 79 enum rxrpc_call_completion *, u32 *); 80 u32 rxrpc_kernel_check_life(struct socket *, struct rxrpc_call *); 81 u32 rxrpc_kernel_get_epoch(struct socket *, struct rxrpc_call *); 82 bool rxrpc_kernel_get_reply_time(struct socket *, struct rxrpc_call *, 83 ktime_t *); 84 85 #endif /* _NET_RXRPC_H */ 86