LXR linux/include/net/af

   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
  14struct key;
  15struct sock;
  16struct socket;
  17struct rxrpc_call;
  18
  19enum 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 */
  28extern atomic_t rxrpc_debug_id;
  29
  30typedef void (*rxrpc_notify_rx_t)(struct sock *, struct rxrpc_call *,
  31                                  unsigned long);
  32typedef void (*rxrpc_notify_end_tx_t)(struct sock *, struct rxrpc_call *,
  33                                      unsigned long);
  34typedef void (*rxrpc_notify_new_call_t)(struct sock *, struct rxrpc_call *,
  35                                        unsigned long);
  36typedef void (*rxrpc_discard_new_call_t)(struct rxrpc_call *, unsigned long);
  37typedef void (*rxrpc_user_attach_call_t)(struct rxrpc_call *, unsigned long);
  38
  39void rxrpc_kernel_new_call_notification(struct socket *,
  40                                        rxrpc_notify_new_call_t,
  41                                        rxrpc_discard_new_call_t);
  42struct 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);
  52int rxrpc_kernel_send_data(struct socket *, struct rxrpc_call *,
  53                           struct msghdr *, size_t,
  54                           rxrpc_notify_end_tx_t);
  55int rxrpc_kernel_recv_data(struct socket *, struct rxrpc_call *,
  56                           struct iov_iter *, bool, u32 *, u16 *);
  57bool rxrpc_kernel_abort_call(struct socket *, struct rxrpc_call *,
  58                             u32, int, const char *);
  59void rxrpc_kernel_end_call(struct socket *, struct rxrpc_call *);
  60void rxrpc_kernel_get_peer(struct socket *, struct rxrpc_call *,
  61                           struct sockaddr_rxrpc *);
  62bool rxrpc_kernel_get_srtt(struct socket *, struct rxrpc_call *, u32 *);
  63int rxrpc_kernel_charge_accept(struct socket *, rxrpc_notify_rx_t,
  64                               rxrpc_user_attach_call_t, unsigned long, gfp_t,
  65                               unsigned int);
  66void rxrpc_kernel_set_tx_length(struct socket *, struct rxrpc_call *, s64);
  67bool rxrpc_kernel_check_life(const struct socket *, const struct rxrpc_call *);
  68u32 rxrpc_kernel_get_epoch(struct socket *, struct rxrpc_call *);
  69bool rxrpc_kernel_get_reply_time(struct socket *, struct rxrpc_call *,
  70                                 ktime_t *);
  71bool rxrpc_kernel_call_is_complete(struct rxrpc_call *);
  72void rxrpc_kernel_set_max_life(struct socket *, struct rxrpc_call *,
  73                               unsigned long);
  74
  75int rxrpc_sock_set_min_security_level(struct sock *sk, unsigned int val);
  76
  77#endif /* _NET_RXRPC_H */
  78