source: mainline/uspace/srv/net/il/ip/ip.h@ 91478aa

/*
 * Copyright (c) 2009 Lukas Mejdrech
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

/** @addtogroup ip
 *  @{
 */

/** @file
 *  IP module.
 */

#ifndef __NET_IP_H__
#define __NET_IP_H__

#include <fibril_synch.h>

#include <ipc/ipc.h>
#include <ipc/services.h>

#include "../../include/device.h"
#include "../../include/inet.h"
#include "../../include/ip_interface.h"

#include "../../structures/int_map.h"
#include "../../structures/generic_field.h"
#include "../../structures/module_map.h"

/** Type definition of the IP global data.
 *  @see ip_globals
 */
typedef struct ip_globals       ip_globals_t;

/** Type definition of the IP network interface specific data.
 *  @see ip_netif
 */
typedef struct ip_netif ip_netif_t;

/** Type definition of the IP network interface specific data pointer.
 *  @see ip_netif
 */
typedef ip_netif_t *    ip_netif_ref;

/** Type definition of the IP protocol specific data.
 *  @see ip_proto
 */
typedef struct ip_proto ip_proto_t;

/** Type definition of the IP protocol specific data pointer.
 *  @see ip_proto
 */
typedef ip_proto_t *    ip_proto_ref;

/** Type definition of the IP route specific data.
 *  @see ip_route
 */
typedef struct ip_route ip_route_t;

/** Type definition of the IP route specific data pointer.
 *  @see ip_route
 */
typedef ip_route_t *    ip_route_ref;

/** IP network interfaces.
 *  Maps devices to the IP network interface specific data.
 *  @see device.h
 */
DEVICE_MAP_DECLARE( ip_netifs, ip_netif_t )

/** IP registered protocols.
 *  Maps protocols to the IP protocol specific data.
 *  @see int_map.h
 */
INT_MAP_DECLARE( ip_protos, ip_proto_t )

/** IP routing table.
 *  @see generic_field.h
 */
GENERIC_FIELD_DECLARE( ip_routes, ip_route_t )

/** IP network interface specific data.
 */
struct  ip_netif{
        /** Device identifier.
         */
        device_id_t     device_id;
        /** Netif module service.
         */
        services_t      service;
        /** Netif module phone.
         */
        int                     phone;
        /** ARP module.
         *  Assigned if using ARP.
         */
        module_ref      arp;
        /** IP version.
         */
        int                     ipv;
        /** Indicates whether using DHCP.
         */
        int                     dhcp;
        /** Indicates whether IP routing is enabled.
         */
        int                     routing;
        /** Device state.
         */
        device_state_t  state;
        /** Broadcast address.
         */
        in_addr_t       broadcast;
        /** Routing table.
         */
        ip_routes_t     routes;
        /** Packet dimension.
         */
        packet_dimension_t      packet_dimension;
};

/** IP protocol specific data.
 */
struct ip_proto{
        /** Protocol number.
         */
        int     protocol;
        /** Protocol module service.
         */
        services_t service;
        /** Protocol module phone.
         */
        int     phone;
        /** Protocol packet receiving function.
         */
        tl_received_msg_t received_msg;
};

/** IP route specific data.
 */
struct ip_route{
        /** Target address.
         */
        in_addr_t               address;
        /** Target network mask.
         */
        in_addr_t               netmask;
        /** Gateway.
         */
        in_addr_t               gateway;
        /** Parent netif.
         */
        ip_netif_ref    netif;
};

/** IP global data.
 */
struct  ip_globals{
        /** Networking module phone.
         */
        int                     net_phone;
        /** Registered network interfaces.
         */
        ip_netifs_t     netifs;
        /** Netifs safeyt lock.
         */
        fibril_rwlock_t netifs_lock;
        /** Registered protocols.
         */
        ip_protos_t     protos;
        /** Protocols safety lock.
         */
        fibril_rwlock_t protos_lock;
        /** Default gateway.
         */
        ip_route_t      gateway;
        /** Known support modules.
         */
        modules_t       modules;
        /** Default client connection function for support modules.
         */
        async_client_conn_t client_connection;
        /** Packet counter.
         */
        uint16_t        packet_counter;
        /** Safety lock.
         */
        fibril_rwlock_t lock;
};

#endif

/** @}
 */