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