net/tipc/socket.h

   1 /* net/tipc/socket.h: Include file for TIPC socket code
   2  *
   3  * Copyright (c) 2014-2016, Ericsson AB
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. Neither the names of the copyright holders nor the names of its
  15  *    contributors may be used to endorse or promote products derived from
  16  *    this software without specific prior written permission.
  17  *
  18  * Alternatively, this software may be distributed under the terms of the
  19  * GNU General Public License ("GPL") version 2 as published by the Free
  20  * Software Foundation.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  23  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #ifndef _TIPC_SOCK_H
  36 #define _TIPC_SOCK_H
  37
  38 #include <net/sock.h>
  39 #include <net/genetlink.h>
  40
  41 /* Compatibility values for deprecated message based flow control */
  42 #define FLOWCTL_MSG_WIN 512
  43 #define FLOWCTL_MSG_LIM ((FLOWCTL_MSG_WIN * 2 + 1) * SKB_TRUESIZE(MAX_MSG_SIZE))
  44
  45 #define FLOWCTL_BLK_SZ 1024
  46
  47 /* Socket receive buffer sizes */
  48 #define RCVBUF_MIN  (FLOWCTL_BLK_SZ * 512)
  49 #define RCVBUF_DEF  (FLOWCTL_BLK_SZ * 1024 * 2)
  50 #define RCVBUF_MAX  (FLOWCTL_BLK_SZ * 1024 * 16)
  51
  52 struct tipc_sock;
  53
  54 int tipc_socket_init(void);
  55 void tipc_socket_stop(void);
  56 void tipc_sk_rcv(struct net *net, struct sk_buff_head *inputq);
  57 void tipc_sk_mcast_rcv(struct net *net, struct sk_buff_head *arrvq,
  58                        struct sk_buff_head *inputq);
  59 void tipc_sk_reinit(struct net *net);
  60 int tipc_sk_rht_init(struct net *net);
  61 void tipc_sk_rht_destroy(struct net *net);
  62 int tipc_nl_sk_dump(struct sk_buff *skb, struct netlink_callback *cb);
  63 int tipc_nl_publ_dump(struct sk_buff *skb, struct netlink_callback *cb);
  64 int tipc_sk_fill_sock_diag(struct sk_buff *skb, struct netlink_callback *cb,
  65                            struct tipc_sock *tsk, u32 sk_filter_state,
  66                            u64 (*tipc_diag_gen_cookie)(struct sock *sk));
  67 int tipc_nl_sk_walk(struct sk_buff *skb, struct netlink_callback *cb,
  68                     int (*skb_handler)(struct sk_buff *skb,
  69                                        struct netlink_callback *cb,
  70                                        struct tipc_sock *tsk));
  71 int tipc_dump_start(struct netlink_callback *cb);
  72 int __tipc_dump_start(struct netlink_callback *cb, struct net *net);
  73 int tipc_dump_done(struct netlink_callback *cb);
  74 u32 tipc_sock_get_portid(struct sock *sk);
  75 bool tipc_sk_overlimit1(struct sock *sk, struct sk_buff *skb);
  76 bool tipc_sk_overlimit2(struct sock *sk, struct sk_buff *skb);
  77
  78 #endif