| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 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 | struct iov_iter *, 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 */ |