46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
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/*
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* mods_net.c - This file is part of NVIDIA MODS kernel driver.
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*
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* Copyright (c) 2015-2020, NVIDIA CORPORATION. All rights reserved.
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*
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* NVIDIA MODS kernel driver is free software: you can redistribute it and/or
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* modify it under the terms of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* NVIDIA MODS kernel driver is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with NVIDIA MODS kernel driver.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "mods_internal.h"
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#include <linux/netdevice.h>
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int esc_mods_net_force_link(struct file *pfile, struct MODS_NET_DEVICE_NAME *p)
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{
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struct net_device *ndev;
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if (!p ||
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(strnlen(p->device_name, MAX_NET_DEVICE_NAME_LENGTH) == 0) ||
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(!memchr(p->device_name, '\0', MAX_NET_DEVICE_NAME_LENGTH))) {
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mods_error_printk("invalid device name\n");
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return -EINVAL;
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}
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for_each_netdev(&init_net, ndev)
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if (!strcmp(ndev->name, p->device_name)) {
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netif_carrier_on(ndev);
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mods_info_printk("carrier forced on: %s\n",
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p->device_name);
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return OK;
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}
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mods_error_printk("failed to find network device %s\n",
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p->device_name);
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return -EINVAL;
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}
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