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* Copyright (c) 2009 Lukas Mejdrech
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* - The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* IP module interface.
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* The same interface is used for standalone remote modules as well as for bundle modules.
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* The standalone remote modules have to be compiled with the ip_remote.c source file.
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* The bundle modules with the ip.c source file.
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#ifndef __NET_IP_INTERFACE_H__
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#define __NET_IP_INTERFACE_H__
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#include <ipc/services.h>
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#include "../include/device.h"
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#include "../structures/packet/packet.h"
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#include "socket_codes.h"
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/** @name IP module interface
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* This interface is used by other modules.
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/** Type definition of the internet pseudo header pointer.
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typedef void * ip_pseudo_header_ref;
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/** The transport layer notification function type definition.
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* Notifies the transport layer modules about the received packet/s.
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* @param[in] device_id The device identifier.
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* @param[in] packet The received packet or the received packet queue.
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* @param[in] receiver The receiving module service.
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* @param[in] error The packet error reporting service. Prefixes the received packet.
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* @returns EOK on success.
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typedef int ( * tl_received_msg_t )( device_id_t device_id, packet_t packet, services_t receiver, services_t error );
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/** Creates bidirectional connection with the ip module service and registers the message receiver.
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* @param[in] service The IP module service.
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* @param[in] protocol The transport layer protocol.
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* @param[in] me The requesting module service.
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* @param[in] receiver The message receiver. Used for remote connection.
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* @param[in] tl_received_msg The message processing function. Used if bundled together.
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* @returns The phone of the needed service.
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* @returns EOK on success.
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* @returns Other error codes as defined for the bind_service() function.
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int ip_bind_service( services_t service, int protocol, services_t me, async_client_conn_t receiver, tl_received_msg_t tl_received_msg );
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/** Registers the new device.
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* Registers itself as the ip packet receiver.
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* If the device uses ARP registers also the new ARP device.
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* @param[in] ip_phone The IP module phone used for (semi)remote calls.
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* @param[in] device_id The new device identifier.
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* @param[in] netif The underlying device network interface layer service.
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* @returns EOK on success.
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* @returns ENOMEM if there is not enough memory left.
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* @returns EINVAL if the device configuration is invalid.
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* @returns ENOTSUP if the device uses IPv6.
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* @returns ENOTSUP if the device uses DHCP.
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* @returns Other error codes as defined for the net_get_device_conf_req() function.
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* @returns Other error codes as defined for the arp_device_req() function.
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int ip_device_req( int ip_phone, device_id_t device_id, services_t netif );
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/** Sends the packet queue.
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* The packets may get fragmented if needed.
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* @param[in] ip_phone The IP module phone used for (semi)remote calls.
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* @param[in] device_id The device identifier.
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* @param[in] packet The packet fragments as a~packet queue. All the packets have to have the same destination address.
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* @param[in] sender The sending module service.
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* @param[in] error The packet error reporting service. Prefixes the received packet.
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* @returns EOK on success.
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* @returns Other error codes as defined for the generic_send_msg() function.
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int ip_send_msg( int ip_phone, device_id_t device_id, packet_t packet, services_t sender, services_t error );
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/** Connects to the IP module.
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* @param service The IP module service. Ignored parameter.
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* @returns The IP module phone on success.
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* @returns 0 if called by the bundle module.
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int ip_connect_module( services_t service );
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/** Adds a route to the device routing table.
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* The target network is routed using this device.
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* @param[in] ip_phone The IP module phone used for (semi)remote calls.
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* @param[in] device_id The device identifier.
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* @param[in] address The target network address.
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* @param[in] netmask The target network mask.
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* @param[in] gateway The target network gateway. Not used if zero.
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int ip_add_route_req( int ip_phone, device_id_t device_id, in_addr_t address, in_addr_t netmask, in_addr_t gateway );
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/** Sets the default gateway.
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* This gateway is used if no other route is found.
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* @param[in] ip_phone The IP module phone used for (semi)remote calls.
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* @param[in] device_id The device identifier.
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* @param[in] gateway The default gateway.
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int ip_set_gateway_req( int ip_phone, device_id_t device_id, in_addr_t gateway );
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/** Returns the device packet dimension for sending.
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* @param[in] ip_phone The IP module phone used for (semi)remote calls.
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* @param[in] device_id The device identifier.
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* @param[out] packet_dimension The packet dimension.
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* @returns EOK on success.
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* @returns ENOENT if there is no such device.
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* @returns Other error codes as defined for the generic_packet_size_req() function.
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int ip_packet_size_req( int ip_phone, device_id_t device_id, packet_dimension_ref packet_dimension );
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/** Notifies the IP module about the received error notification packet.
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* @param[in] ip_phone The IP module phone used for (semi)remote calls.
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* @param[in] device_id The device identifier.
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* @param[in] packet The received packet or the received packet queue.
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* @param[in] target The target internetwork module service to be delivered to.
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* @param[in] error The packet error reporting service. Prefixes the received packet.
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* @returns EOK on success.
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int ip_received_error_msg( int ip_phone, device_id_t device_id, packet_t packet, services_t target, services_t error );
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/** Returns the device identifier and the IP pseudo header based on the destination address.
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* @param[in] ip_phone The IP module phone used for (semi)remote calls.
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* @param[in] protocol The transport protocol.
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* @param[in] destination The destination address.
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* @param[in] addrlen The destination address length.
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* @param[out] device_id The device identifier.
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* @param[out] header The constructed IP pseudo header.
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* @param[out] headerlen The IP pseudo header length.
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int ip_get_route_req( int ip_phone, ip_protocol_t protocol, const struct sockaddr * destination, socklen_t addrlen, device_id_t * device_id, ip_pseudo_header_ref * header, size_t * headerlen );