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/*
* mods_net.c - This file is part of NVIDIA MODS kernel driver.
*
* Copyright (c) 2015-2020, NVIDIA CORPORATION. All rights reserved.
*
* NVIDIA MODS kernel driver is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* NVIDIA MODS kernel driver 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 NVIDIA MODS kernel driver.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "mods_internal.h"
#include <linux/netdevice.h>
int esc_mods_net_force_link(struct file *pfile, struct MODS_NET_DEVICE_NAME *p)
{
struct net_device *ndev;
if (!p ||
(strnlen(p->device_name, MAX_NET_DEVICE_NAME_LENGTH) == 0) ||
(!memchr(p->device_name, '\0', MAX_NET_DEVICE_NAME_LENGTH))) {
mods_error_printk("invalid device name\n");
return -EINVAL;
}
for_each_netdev(&init_net, ndev)
if (!strcmp(ndev->name, p->device_name)) {
netif_carrier_on(ndev);
mods_info_printk("carrier forced on: %s\n",
p->device_name);
return OK;
}
mods_error_printk("failed to find network device %s\n",
p->device_name);
return -EINVAL;
}
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