include/net/af_rxrpc.h

   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 *, 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 u32 rxrpc_kernel_get_srtt(struct socket *, struct rxrpc_call *);
  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_get_reply_time(struct socket *, struct rxrpc_call *,
  70                                  ktime_t *);
  71 bool rxrpc_kernel_call_is_complete(struct rxrpc_call *);
  72 void rxrpc_kernel_set_max_life(struct socket *, struct rxrpc_call *,
  73                                unsigned long);
  74
  75 #endif /* _NET_RXRPC_H */