WebSVN – HelenOS – Blame – /branches/network/uspace/srv/net/socket/socket_core.c

Rev	Author	Line No.	Line
4578	mejdrech	1	/*
		2	* Copyright (c) 2009 Lukas Mejdrech
		3	* All rights reserved.
		4	*
		5	* Redistribution and use in source and binary forms, with or without
		6	* modification, are permitted provided that the following conditions
		7	* are met:
		8	*
		9	* - Redistributions of source code must retain the above copyright
		10	* notice, this list of conditions and the following disclaimer.
		11	* - 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	* - The name of the author may not be used to endorse or promote products
		15	* derived from this software without specific prior written permission.
		16	*
		17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
		18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
		19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
		20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
		21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
		26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		27	*/
		28
		29	/** @addtogroup socket
		30	* @{
		31	*/
		32
		33	/** @file
		34	*/
		35
		36	#include "../err.h"
		37
		38	#include "../include/in.h"
		39	#include "../include/inet.h"
		40
		41	#include "../include/socket.h"
		42	#include "../include/socket_errno.h"
		43
		44	#include "../structures/int_map.h"
		45	#include "../structures/packet/packet.h"
		46	#include "../structures/packet/packet_client.h"
		47
		48	#include "socket_core.h"
		49
		50	INT_MAP_IMPLEMENT( socket_cores, socket_core_t );
		51
		52	INT_MAP_IMPLEMENT( socket_ports, socket_core_ref );
		53
		54	int socket_bind( socket_cores_ref local_sockets, socket_ports_ref global_sockets, int socket_id, void * addr, size_t addrlen ){
		55	ERROR_DECLARE;
		56
		57	socket_core_ref socket;
		58	socket_core_ref * socket_pointer;
		59	struct sockaddr * address;
		60	struct sockaddr_in * address_in;
		61
		62	if( addrlen < sizeof( struct sockaddr )) return EINVAL;
		63	address = ( struct sockaddr * ) addr;
		64	switch( address->sa_family ){
		65	case AF_INET:
		66	if( addrlen != sizeof( struct sockaddr_in )) return EINVAL;
		67	address_in = ( struct sockaddr_in * ) addr;
		68	socket = socket_cores_find( local_sockets, socket_id );
		69	if( ! socket ) return ENOTSOCK;
		70	socket_pointer = socket_ports_find( global_sockets, address_in->sin_port );
		71	if( * socket_pointer ){
		72	return EADDRINUSE;
		73	}
		74	socket_ports_exclude( global_sockets, socket->port );
		75	socket_pointer = ( socket_core_ref * ) malloc( sizeof( * socket_pointer ));
		76	if( ! socket_pointer ) return ENOMEM;
		77	* socket_pointer = socket;
		78	ERROR_PROPAGATE( socket_ports_add( global_sockets, address_in->sin_port, socket_pointer ));
		79	socket->port = address_in->sin_port;
		80	break;
		81	// TODO IPv6
		82	default:
		83	return EAFNOSUPPORT;
		84	}
		85	return EOK;
		86	}
		87
		88	int socket_create( socket_cores_ref local_sockets, int app_phone ){
		89	socket_core_ref socket;
		90	int res;
		91
		92	socket = ( socket_core_ref ) malloc( sizeof( * socket ));
		93	if( ! socket ) return ENOMEM;
		94	socket->phone = app_phone;
		95	socket->port = -1;
		96	socket->device_id = -1;
		97	socket->peer_addr = NULL;
		98	socket->connect_size = 2;
		99	socket->receive_size = 8;
		100	socket->connected = ( int * ) malloc( sizeof( int ) * socket->connect_size );
		101	if( ! socket->connected ){
		102	free( socket );
		103	return ENOMEM;
		104	}
		105	bzero( socket->connected, sizeof( int ) * socket->connect_size );
		106	socket->received = ( int * ) malloc( sizeof( int ) * socket->receive_size );
		107	if( ! socket->received ){
		108	free( socket->connected );
		109	free( socket );
		110	return ENOMEM;
		111	}
		112	bzero( socket->received, sizeof( int ) * socket->receive_size );
		113	socket->socket_id = socket_cores_count( local_sockets ) + 1;
		114	res = socket_cores_add( local_sockets, socket->socket_id, socket );
		115	if( res < 0 ){
		116	free( socket->received );
		117	free( socket->connected );
		118	free( socket );
		119	return res;
		120	}
		121	return socket->socket_id;
		122	}
		123
		124	int socket_destroy( int packet_phone, int socket_id, socket_cores_ref local_sockets, socket_ports_ref global_sockets ){
		125	socket_core_ref socket;
		126	size_t i;
		127
		128	socket = socket_cores_find( local_sockets, socket_id );
		129	if( ! socket ) return ENOTSOCK;
		130	socket_ports_exclude( global_sockets, socket->port );
		131	if( socket->connected ){
		132	for( i = 0; i < socket->connect_size; ++ i ){
		133	if( socket->connected[ i ] ){
		134	socket_destroy( packet_phone, socket->connected[ i ], local_sockets, global_sockets );
		135	}
		136	}
		137	}
		138	if( socket->received ){
		139	for( i = 0; i < socket->receive_size; ++ i ){
		140	if( socket->received[ i ] ){
		141	pq_release( packet_phone, socket->received[ i ] );
		142	}
		143	}
		144	}
		145	if( socket->connected ) free( socket->connected );
		146	if( socket->received ) free( socket->received );
		147	socket_cores_exclude( local_sockets, socket_id );
		148	return EOK;
		149	}
		150
		151	/** @}
		152	*/

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