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