[deliverable/linux.git] / net / tipc / socket.h

/* net/tipc/socket.h: Include file for TIPC socket code
 *
 * Copyright (c) 2014, Ericsson AB
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the names of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _TIPC_SOCK_H
#define _TIPC_SOCK_H

#include "port.h"
#include <net/sock.h>

/**
 * struct tipc_sock - TIPC socket structure
 * @sk: socket - interacts with 'port' and with user via the socket API
 * @port: port - interacts with 'sk' and with the rest of the TIPC stack
 * @peer_name: the peer of the connection, if any
 * @conn_timeout: the time we can wait for an unresponded setup request
 * @dupl_rcvcnt: number of bytes counted twice, in both backlog and rcv queue
 */

struct tipc_sock {
	struct sock sk;
	struct tipc_port port;
	unsigned int conn_timeout;
	atomic_t dupl_rcvcnt;
};

static inline struct tipc_sock *tipc_sk(const struct sock *sk)
{
	return container_of(sk, struct tipc_sock, sk);
}

static inline struct tipc_sock *tipc_port_to_sock(const struct tipc_port *port)
{
	return container_of(port, struct tipc_sock, port);
}

static inline void tipc_sock_wakeup(struct tipc_sock *tsk)
{
	tsk->sk.sk_write_space(&tsk->sk);
}

int tipc_sk_rcv(struct sk_buff *buf);

#endif
Commit	Line	Data
8826cde6 JPM	1	/* net/tipc/socket.h: Include file for TIPC socket code
	2	*
	3	* Copyright (c) 2014, 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 "port.h"
	39	#include <net/sock.h>
	40
	41	/**
	42	* struct tipc_sock - TIPC socket structure
	43	* @sk: socket - interacts with 'port' and with user via the socket API
	44	* @port: port - interacts with 'sk' and with the rest of the TIPC stack
	45	* @peer_name: the peer of the connection, if any
	46	* @conn_timeout: the time we can wait for an unresponded setup request
4f4482dc	47	* @dupl_rcvcnt: number of bytes counted twice, in both backlog and rcv queue
8826cde6 JPM	48	*/
	49
	50	struct tipc_sock {
	51	struct sock sk;
	52	struct tipc_port port;
	53	unsigned int conn_timeout;
4f4482dc	54	atomic_t dupl_rcvcnt;
8826cde6 JPM	55	};
	56
	57	static inline struct tipc_sock tipc_sk(const struct sock sk)
	58	{
	59	return container_of(sk, struct tipc_sock, sk);
	60	}
	61
58ed9442	62	static inline struct tipc_sock tipc_port_to_sock(const struct tipc_port port)
8826cde6	63	{
58ed9442	64	return container_of(port, struct tipc_sock, port);
8826cde6 JPM	65	}
8826cde6 JPM	66
58ed9442	67	static inline void tipc_sock_wakeup(struct tipc_sock *tsk)
8826cde6	68	{
58ed9442	69	tsk->sk.sk_write_space(&tsk->sk);
24be34b5 JPM	70	}
24be34b5 JPM	71
9816f061	72	int tipc_sk_rcv(struct sk_buff *buf);
24be34b5	73
8826cde6	74	#endif