include/net/af_rxrpc.h

   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 #ifdef __KERNEL__
  16
  17 #include <linux/rxrpc.h>
  18
  19 struct rxrpc_call;
  20
  21 /*
  22  * the mark applied to socket buffers that may be intercepted
  23  */
  24 enum {
  25         RXRPC_SKB_MARK_DATA,            /* data message */
  26         RXRPC_SKB_MARK_FINAL_ACK,       /* final ACK received message */
  27         RXRPC_SKB_MARK_BUSY,            /* server busy message */
  28         RXRPC_SKB_MARK_REMOTE_ABORT,    /* remote abort message */
  29         RXRPC_SKB_MARK_NET_ERROR,       /* network error message */
  30         RXRPC_SKB_MARK_LOCAL_ERROR,     /* local error message */
  31         RXRPC_SKB_MARK_NEW_CALL,        /* local error message */
  32 };
  33
  34 typedef void (*rxrpc_interceptor_t)(struct sock *, unsigned long,
  35                                     struct sk_buff *);
  36 extern void rxrpc_kernel_intercept_rx_messages(struct socket *,
  37                                                rxrpc_interceptor_t);
  38 extern struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *,
  39                                                   struct sockaddr_rxrpc *,
  40                                                   struct key *,
  41                                                   unsigned long,
  42                                                   gfp_t);
  43 extern int rxrpc_kernel_send_data(struct rxrpc_call *, struct msghdr *,
  44                                   size_t);
  45 extern void rxrpc_kernel_abort_call(struct rxrpc_call *, u32);
  46 extern void rxrpc_kernel_end_call(struct rxrpc_call *);
  47 extern bool rxrpc_kernel_is_data_last(struct sk_buff *);
  48 extern u32 rxrpc_kernel_get_abort_code(struct sk_buff *);
  49 extern int rxrpc_kernel_get_error_number(struct sk_buff *);
  50 extern void rxrpc_kernel_data_delivered(struct sk_buff *);
  51 extern void rxrpc_kernel_free_skb(struct sk_buff *);
  52 extern struct rxrpc_call *rxrpc_kernel_accept_call(struct socket *,
  53                                                    unsigned long);
  54 extern int rxrpc_kernel_reject_call(struct socket *);
  55
  56 #endif /* __KERNEL__ */
  57 #endif /* _NET_RXRPC_H */