117 lines
3.0 KiB
C
117 lines
3.0 KiB
C
/*
|
|
* VAS_EBOOT -- GRand Unified Bootloader
|
|
* Copyright (C) 2010,2011,2012,2013 Free Software Foundation, Inc.
|
|
*
|
|
* VAS_EBOOT is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* VAS_EBOOT is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with VAS_EBOOT. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <VasEBoot/dl.h>
|
|
#include <VasEBoot/net/netbuff.h>
|
|
#include <VasEBoot/net.h>
|
|
#include <VasEBoot/term.h>
|
|
#include <VasEBoot/i18n.h>
|
|
#include <VasEBoot/emu/net.h>
|
|
|
|
VAS_EBOOT_MOD_LICENSE ("GPLv3+");
|
|
|
|
static VasEBoot_err_t
|
|
send_card_buffer (struct VasEBoot_net_card *dev __attribute__ ((unused)),
|
|
struct VasEBoot_net_buff *pack);
|
|
|
|
static struct VasEBoot_net_buff *
|
|
get_card_packet (struct VasEBoot_net_card *dev __attribute__ ((unused)));
|
|
|
|
static struct VasEBoot_net_card_driver emudriver =
|
|
{
|
|
.name = "emu",
|
|
.send = send_card_buffer,
|
|
.recv = get_card_packet
|
|
};
|
|
|
|
static struct VasEBoot_net_card emucard =
|
|
{
|
|
.name = "emu0",
|
|
.driver = &emudriver,
|
|
.mtu = 1500,
|
|
.default_address = {
|
|
.type = VAS_EBOOT_NET_LINK_LEVEL_PROTOCOL_ETHERNET,
|
|
{.mac = {0, 1, 2, 3, 4, 5}}
|
|
},
|
|
.flags = 0
|
|
};
|
|
|
|
static VasEBoot_err_t
|
|
send_card_buffer (struct VasEBoot_net_card *dev __attribute__ ((unused)),
|
|
struct VasEBoot_net_buff *pack)
|
|
{
|
|
VasEBoot_ssize_t actual;
|
|
|
|
actual = VasEBoot_emunet_send (pack->data, pack->tail - pack->data);
|
|
if (actual < 0)
|
|
return VasEBoot_error (VAS_EBOOT_ERR_IO, N_("couldn't send network packet"));
|
|
|
|
return VAS_EBOOT_ERR_NONE;
|
|
}
|
|
|
|
static struct VasEBoot_net_buff *
|
|
get_card_packet (struct VasEBoot_net_card *dev __attribute__ ((unused)))
|
|
{
|
|
VasEBoot_ssize_t actual;
|
|
struct VasEBoot_net_buff *nb;
|
|
|
|
nb = VasEBoot_netbuff_alloc (emucard.mtu + 36 + 2);
|
|
if (!nb)
|
|
return NULL;
|
|
|
|
/* Reserve 2 bytes so that 2 + 14/18 bytes of ethernet header is divisible
|
|
by 4. So that IP header is aligned on 4 bytes. */
|
|
VasEBoot_netbuff_reserve (nb, 2);
|
|
if (!nb)
|
|
{
|
|
VasEBoot_netbuff_free (nb);
|
|
return NULL;
|
|
}
|
|
|
|
actual = VasEBoot_emunet_receive (nb->data, emucard.mtu + 36);
|
|
if (actual < 0)
|
|
{
|
|
VasEBoot_netbuff_free (nb);
|
|
return NULL;
|
|
}
|
|
VasEBoot_netbuff_put (nb, actual);
|
|
|
|
return nb;
|
|
}
|
|
|
|
static int registered = 0;
|
|
|
|
VAS_EBOOT_MOD_INIT(emunet)
|
|
{
|
|
if (!VasEBoot_emunet_create (&emucard.mtu))
|
|
{
|
|
VasEBoot_net_card_register (&emucard);
|
|
registered = 1;
|
|
}
|
|
}
|
|
|
|
VAS_EBOOT_MOD_FINI(emunet)
|
|
{
|
|
if (registered)
|
|
{
|
|
VasEBoot_emunet_close ();
|
|
VasEBoot_net_card_unregister (&emucard);
|
|
registered = 0;
|
|
}
|
|
}
|