ip_remote.c

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/*
 * 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.
 */

#include <ip_remote.h>
#include <ip_interface.h>
#include <packet_client.h>
#include <generic.h>

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

#include <net/modules.h>
#include <net/device.h>
#include <net/inet.h>

int ip_add_route_req_remote(int ip_phone, device_id_t device_id,
    in_addr_t address, in_addr_t netmask, in_addr_t gateway)
{
        return (int) async_req_4_0(ip_phone, NET_IP_ADD_ROUTE,
            (sysarg_t) device_id, (sysarg_t) gateway.s_addr,
            (sysarg_t) address.s_addr, (sysarg_t) netmask.s_addr);
}

int ip_bind_service(services_t service, int protocol, services_t me,
    async_client_conn_t receiver)
{
        return (int) bind_service(service, (sysarg_t) protocol, me, service,
            receiver);
}

int ip_connect_module(services_t service)
{
        return connect_to_service(SERVICE_IP);
}

int ip_device_req_remote(int ip_phone, device_id_t device_id,
    services_t service)
{
        return generic_device_req_remote(ip_phone, NET_IP_DEVICE, device_id, 0,
            service);
}

int ip_get_route_req_remote(int ip_phone, ip_protocol_t protocol,
    const struct sockaddr *destination, socklen_t addrlen,
    device_id_t *device_id, void **header, size_t *headerlen)
{
        if (!destination || (addrlen == 0))
                return EINVAL;
        
        if (!device_id || !header || !headerlen)
                return EBADMEM;
        
        *header = NULL;
        
        ipc_call_t answer;
        aid_t message_id = async_send_1(ip_phone, NET_IP_GET_ROUTE,
            (sysarg_t) protocol, &answer);
        
        if ((async_data_write_start(ip_phone, destination, addrlen) == EOK) &&
            (async_data_read_start(ip_phone, headerlen,
            sizeof(*headerlen)) == EOK) && (*headerlen > 0)) {
                *header = malloc(*headerlen);
                if (*header) {
                        if (async_data_read_start(ip_phone, *header,
                            *headerlen) != EOK)
                                free(*header);
                }
        }
        
        sysarg_t result;
        async_wait_for(message_id, &result);
        
        if ((result != EOK) && *header)
                free(*header);
        else
                *device_id = IPC_GET_DEVICE(answer);
        
        return (int) result;
}

int ip_packet_size_req_remote(int ip_phone, device_id_t device_id,
    packet_dimension_t *packet_dimension)
{
        return generic_packet_size_req_remote(ip_phone, NET_IP_PACKET_SPACE,
            device_id, packet_dimension);
}

int ip_received_error_msg_remote(int ip_phone, device_id_t device_id,
    packet_t *packet, services_t target, services_t error)
{
        return generic_received_msg_remote(ip_phone, NET_IP_RECEIVED_ERROR,
            device_id, packet_get_id(packet), target, error);
}

int ip_send_msg_remote(int ip_phone, device_id_t device_id, packet_t *packet,
    services_t sender, services_t error)
{
        return generic_send_msg_remote(ip_phone, NET_IP_SEND, device_id,
            packet_get_id(packet), sender, error);
}

int ip_set_gateway_req_remote(int ip_phone, device_id_t device_id,
    in_addr_t gateway)
{
        return (int) async_req_2_0(ip_phone, NET_IP_SET_GATEWAY,
            (sysarg_t) device_id, (sysarg_t) gateway.s_addr);
}

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