ethtool.c 35.8 KB
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/*
 * net/core/ethtool.c - Ethtool ioctl handler
 * Copyright (c) 2003 Matthew Wilcox <matthew@wil.cx>
 *
 * This file is where we call all the ethtool_ops commands to get
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 * the information ethtool needs.
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 *
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 * This program 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 2 of the License, or
 * (at your option) any later version.
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 */

#include <linux/module.h>
#include <linux/types.h>
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#include <linux/capability.h>
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#include <linux/errno.h>
#include <linux/ethtool.h>
#include <linux/netdevice.h>
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#include <linux/bitops.h>
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#include <linux/uaccess.h>
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#include <linux/vmalloc.h>
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#include <linux/slab.h>
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#include <linux/rtnetlink.h>
#include <linux/sched.h>
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/*
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 * Some useful ethtool_ops methods that're device independent.
 * If we find that all drivers want to do the same thing here,
 * we can turn these into dev_() function calls.
 */

u32 ethtool_op_get_link(struct net_device *dev)
{
	return netif_carrier_ok(dev) ? 1 : 0;
}
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EXPORT_SYMBOL(ethtool_op_get_link);
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/* Handlers for each ethtool command */

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#define ETHTOOL_DEV_FEATURE_WORDS	((NETDEV_FEATURE_COUNT + 31) / 32)
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static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = {
	[NETIF_F_SG_BIT] =               "tx-scatter-gather",
	[NETIF_F_IP_CSUM_BIT] =          "tx-checksum-ipv4",
	[NETIF_F_HW_CSUM_BIT] =          "tx-checksum-ip-generic",
	[NETIF_F_IPV6_CSUM_BIT] =        "tx-checksum-ipv6",
	[NETIF_F_HIGHDMA_BIT] =          "highdma",
	[NETIF_F_FRAGLIST_BIT] =         "tx-scatter-gather-fraglist",
	[NETIF_F_HW_VLAN_TX_BIT] =       "tx-vlan-hw-insert",

	[NETIF_F_HW_VLAN_RX_BIT] =       "rx-vlan-hw-parse",
	[NETIF_F_HW_VLAN_FILTER_BIT] =   "rx-vlan-filter",
	[NETIF_F_VLAN_CHALLENGED_BIT] =  "vlan-challenged",
	[NETIF_F_GSO_BIT] =              "tx-generic-segmentation",
	[NETIF_F_LLTX_BIT] =             "tx-lockless",
	[NETIF_F_NETNS_LOCAL_BIT] =      "netns-local",
	[NETIF_F_GRO_BIT] =              "rx-gro",
	[NETIF_F_LRO_BIT] =              "rx-lro",

	[NETIF_F_TSO_BIT] =              "tx-tcp-segmentation",
	[NETIF_F_UFO_BIT] =              "tx-udp-fragmentation",
	[NETIF_F_GSO_ROBUST_BIT] =       "tx-gso-robust",
	[NETIF_F_TSO_ECN_BIT] =          "tx-tcp-ecn-segmentation",
	[NETIF_F_TSO6_BIT] =             "tx-tcp6-segmentation",
	[NETIF_F_FSO_BIT] =              "tx-fcoe-segmentation",

	[NETIF_F_FCOE_CRC_BIT] =         "tx-checksum-fcoe-crc",
	[NETIF_F_SCTP_CSUM_BIT] =        "tx-checksum-sctp",
	[NETIF_F_FCOE_MTU_BIT] =         "fcoe-mtu",
	[NETIF_F_NTUPLE_BIT] =           "rx-ntuple-filter",
	[NETIF_F_RXHASH_BIT] =           "rx-hashing",
	[NETIF_F_RXCSUM_BIT] =           "rx-checksum",
	[NETIF_F_NOCACHE_COPY_BIT] =     "tx-nocache-copy",
	[NETIF_F_LOOPBACK_BIT] =         "loopback",
};

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static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
{
	struct ethtool_gfeatures cmd = {
		.cmd = ETHTOOL_GFEATURES,
		.size = ETHTOOL_DEV_FEATURE_WORDS,
	};
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	struct ethtool_get_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
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	u32 __user *sizeaddr;
	u32 copy_size;
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	int i;

	/* in case feature bits run out again */
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	BUILD_BUG_ON(ETHTOOL_DEV_FEATURE_WORDS * sizeof(u32) > sizeof(netdev_features_t));
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	for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
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		features[i].available = (u32)(dev->hw_features >> (32 * i));
		features[i].requested = (u32)(dev->wanted_features >> (32 * i));
		features[i].active = (u32)(dev->features >> (32 * i));
		features[i].never_changed =
			(u32)(NETIF_F_NEVER_CHANGE >> (32 * i));
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	}
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	sizeaddr = useraddr + offsetof(struct ethtool_gfeatures, size);
	if (get_user(copy_size, sizeaddr))
		return -EFAULT;

	if (copy_size > ETHTOOL_DEV_FEATURE_WORDS)
		copy_size = ETHTOOL_DEV_FEATURE_WORDS;

	if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
		return -EFAULT;
	useraddr += sizeof(cmd);
	if (copy_to_user(useraddr, features, copy_size * sizeof(*features)))
		return -EFAULT;

	return 0;
}

static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
{
	struct ethtool_sfeatures cmd;
	struct ethtool_set_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
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	netdev_features_t wanted = 0, valid = 0;
	int i, ret = 0;
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	if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
		return -EFAULT;
	useraddr += sizeof(cmd);

	if (cmd.size != ETHTOOL_DEV_FEATURE_WORDS)
		return -EINVAL;

	if (copy_from_user(features, useraddr, sizeof(features)))
		return -EFAULT;

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	for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
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		valid |= (netdev_features_t)features[i].valid << (32 * i);
		wanted |= (netdev_features_t)features[i].requested << (32 * i);
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	}

	if (valid & ~NETIF_F_ETHTOOL_BITS)
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		return -EINVAL;

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	if (valid & ~dev->hw_features) {
		valid &= dev->hw_features;
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		ret |= ETHTOOL_F_UNSUPPORTED;
	}

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	dev->wanted_features &= ~valid;
	dev->wanted_features |= wanted & valid;
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	__netdev_update_features(dev);
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	if ((dev->wanted_features ^ dev->features) & valid)
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		ret |= ETHTOOL_F_WISH;

	return ret;
}

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static int __ethtool_get_sset_count(struct net_device *dev, int sset)
{
	const struct ethtool_ops *ops = dev->ethtool_ops;

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	if (sset == ETH_SS_FEATURES)
		return ARRAY_SIZE(netdev_features_strings);

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	if (ops && ops->get_sset_count && ops->get_strings)
		return ops->get_sset_count(dev, sset);
	else
		return -EOPNOTSUPP;
}

static void __ethtool_get_strings(struct net_device *dev,
	u32 stringset, u8 *data)
{
	const struct ethtool_ops *ops = dev->ethtool_ops;

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	if (stringset == ETH_SS_FEATURES)
		memcpy(data, netdev_features_strings,
			sizeof(netdev_features_strings));
	else
		/* ops->get_strings is valid because checked earlier */
		ops->get_strings(dev, stringset, data);
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}

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static netdev_features_t ethtool_get_feature_mask(u32 eth_cmd)
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{
	/* feature masks of legacy discrete ethtool ops */

	switch (eth_cmd) {
	case ETHTOOL_GTXCSUM:
	case ETHTOOL_STXCSUM:
		return NETIF_F_ALL_CSUM | NETIF_F_SCTP_CSUM;
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	case ETHTOOL_GRXCSUM:
	case ETHTOOL_SRXCSUM:
		return NETIF_F_RXCSUM;
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	case ETHTOOL_GSG:
	case ETHTOOL_SSG:
		return NETIF_F_SG;
	case ETHTOOL_GTSO:
	case ETHTOOL_STSO:
		return NETIF_F_ALL_TSO;
	case ETHTOOL_GUFO:
	case ETHTOOL_SUFO:
		return NETIF_F_UFO;
	case ETHTOOL_GGSO:
	case ETHTOOL_SGSO:
		return NETIF_F_GSO;
	case ETHTOOL_GGRO:
	case ETHTOOL_SGRO:
		return NETIF_F_GRO;
	default:
		BUG();
	}
}

static int ethtool_get_one_feature(struct net_device *dev,
	char __user *useraddr, u32 ethcmd)
{
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	netdev_features_t mask = ethtool_get_feature_mask(ethcmd);
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	struct ethtool_value edata = {
		.cmd = ethcmd,
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		.data = !!(dev->features & mask),
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	};

	if (copy_to_user(useraddr, &edata, sizeof(edata)))
		return -EFAULT;
	return 0;
}

static int ethtool_set_one_feature(struct net_device *dev,
	void __user *useraddr, u32 ethcmd)
{
	struct ethtool_value edata;
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	netdev_features_t mask;
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	if (copy_from_user(&edata, useraddr, sizeof(edata)))
		return -EFAULT;

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	mask = ethtool_get_feature_mask(ethcmd);
	mask &= dev->hw_features;
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	if (!mask)
		return -EOPNOTSUPP;
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	if (edata.data)
		dev->wanted_features |= mask;
	else
		dev->wanted_features &= ~mask;
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	__netdev_update_features(dev);
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	return 0;
}

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#define ETH_ALL_FLAGS    (ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | \
			  ETH_FLAG_NTUPLE | ETH_FLAG_RXHASH)
#define ETH_ALL_FEATURES (NETIF_F_LRO | NETIF_F_HW_VLAN_RX | \
			  NETIF_F_HW_VLAN_TX | NETIF_F_NTUPLE | NETIF_F_RXHASH)
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static u32 __ethtool_get_flags(struct net_device *dev)
{
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	u32 flags = 0;

	if (dev->features & NETIF_F_LRO)	flags |= ETH_FLAG_LRO;
	if (dev->features & NETIF_F_HW_VLAN_RX)	flags |= ETH_FLAG_RXVLAN;
	if (dev->features & NETIF_F_HW_VLAN_TX)	flags |= ETH_FLAG_TXVLAN;
	if (dev->features & NETIF_F_NTUPLE)	flags |= ETH_FLAG_NTUPLE;
	if (dev->features & NETIF_F_RXHASH)	flags |= ETH_FLAG_RXHASH;

	return flags;
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}

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static int __ethtool_set_flags(struct net_device *dev, u32 data)
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{
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	netdev_features_t features = 0, changed;
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	if (data & ~ETH_ALL_FLAGS)
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		return -EINVAL;

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	if (data & ETH_FLAG_LRO)	features |= NETIF_F_LRO;
	if (data & ETH_FLAG_RXVLAN)	features |= NETIF_F_HW_VLAN_RX;
	if (data & ETH_FLAG_TXVLAN)	features |= NETIF_F_HW_VLAN_TX;
	if (data & ETH_FLAG_NTUPLE)	features |= NETIF_F_NTUPLE;
	if (data & ETH_FLAG_RXHASH)	features |= NETIF_F_RXHASH;

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	/* allow changing only bits set in hw_features */
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	changed = (features ^ dev->features) & ETH_ALL_FEATURES;
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	if (changed & ~dev->hw_features)
		return (changed & dev->hw_features) ? -EINVAL : -EOPNOTSUPP;

	dev->wanted_features =
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		(dev->wanted_features & ~changed) | (features & changed);
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	__netdev_update_features(dev);
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	return 0;
}

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int __ethtool_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
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{
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	ASSERT_RTNL();
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	if (!dev->ethtool_ops || !dev->ethtool_ops->get_settings)
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		return -EOPNOTSUPP;

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	memset(cmd, 0, sizeof(struct ethtool_cmd));
	cmd->cmd = ETHTOOL_GSET;
	return dev->ethtool_ops->get_settings(dev, cmd);
}
EXPORT_SYMBOL(__ethtool_get_settings);

static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
{
	int err;
	struct ethtool_cmd cmd;

	err = __ethtool_get_settings(dev, &cmd);
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	if (err < 0)
		return err;

	if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
		return -EFAULT;
	return 0;
}

static int ethtool_set_settings(struct net_device *dev, void __user *useraddr)
{
	struct ethtool_cmd cmd;

	if (!dev->ethtool_ops->set_settings)
		return -EOPNOTSUPP;

	if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
		return -EFAULT;

	return dev->ethtool_ops->set_settings(dev, &cmd);
}

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static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
						  void __user *useraddr)
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{
	struct ethtool_drvinfo info;
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	const struct ethtool_ops *ops = dev->ethtool_ops;
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	memset(&info, 0, sizeof(info));
	info.cmd = ETHTOOL_GDRVINFO;
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	if (ops && ops->get_drvinfo) {
		ops->get_drvinfo(dev, &info);
	} else if (dev->dev.parent && dev->dev.parent->driver) {
		strlcpy(info.bus_info, dev_name(dev->dev.parent),
			sizeof(info.bus_info));
		strlcpy(info.driver, dev->dev.parent->driver->name,
			sizeof(info.driver));
	} else {
		return -EOPNOTSUPP;
	}
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	/*
	 * this method of obtaining string set info is deprecated;
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	 * Use ETHTOOL_GSSET_INFO instead.
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	 */
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	if (ops && ops->get_sset_count) {
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		int rc;

		rc = ops->get_sset_count(dev, ETH_SS_TEST);
		if (rc >= 0)
			info.testinfo_len = rc;
		rc = ops->get_sset_count(dev, ETH_SS_STATS);
		if (rc >= 0)
			info.n_stats = rc;
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		rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
		if (rc >= 0)
			info.n_priv_flags = rc;
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	}
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	if (ops && ops->get_regs_len)
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		info.regdump_len = ops->get_regs_len(dev);
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	if (ops && ops->get_eeprom_len)
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		info.eedump_len = ops->get_eeprom_len(dev);

	if (copy_to_user(useraddr, &info, sizeof(info)))
		return -EFAULT;
	return 0;
}

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static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev,
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						    void __user *useraddr)
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{
	struct ethtool_sset_info info;
	u64 sset_mask;
	int i, idx = 0, n_bits = 0, ret, rc;
	u32 *info_buf = NULL;

	if (copy_from_user(&info, useraddr, sizeof(info)))
		return -EFAULT;

	/* store copy of mask, because we zero struct later on */
	sset_mask = info.sset_mask;
	if (!sset_mask)
		return 0;

	/* calculate size of return buffer */
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	n_bits = hweight64(sset_mask);
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	memset(&info, 0, sizeof(info));
	info.cmd = ETHTOOL_GSSET_INFO;

	info_buf = kzalloc(n_bits * sizeof(u32), GFP_USER);
	if (!info_buf)
		return -ENOMEM;

	/*
	 * fill return buffer based on input bitmask and successful
	 * get_sset_count return
	 */
	for (i = 0; i < 64; i++) {
		if (!(sset_mask & (1ULL << i)))
			continue;

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		rc = __ethtool_get_sset_count(dev, i);
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		if (rc >= 0) {
			info.sset_mask |= (1ULL << i);
			info_buf[idx++] = rc;
		}
	}

	ret = -EFAULT;
	if (copy_to_user(useraddr, &info, sizeof(info)))
		goto out;

	useraddr += offsetof(struct ethtool_sset_info, data);
	if (copy_to_user(useraddr, info_buf, idx * sizeof(u32)))
		goto out;

	ret = 0;

out:
	kfree(info_buf);
	return ret;
}

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static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev,
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						u32 cmd, void __user *useraddr)
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{
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	struct ethtool_rxnfc info;
	size_t info_size = sizeof(info);
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	int rc;
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	if (!dev->ethtool_ops->set_rxnfc)
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		return -EOPNOTSUPP;

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	/* struct ethtool_rxnfc was originally defined for
	 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
	 * members.  User-space might still be using that
	 * definition. */
	if (cmd == ETHTOOL_SRXFH)
		info_size = (offsetof(struct ethtool_rxnfc, data) +
			     sizeof(info.data));

	if (copy_from_user(&info, useraddr, info_size))
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		return -EFAULT;

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	rc = dev->ethtool_ops->set_rxnfc(dev, &info);
	if (rc)
		return rc;

	if (cmd == ETHTOOL_SRXCLSRLINS &&
	    copy_to_user(useraddr, &info, info_size))
		return -EFAULT;

	return 0;
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}

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static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev,
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						u32 cmd, void __user *useraddr)
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{
	struct ethtool_rxnfc info;
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	size_t info_size = sizeof(info);
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	const struct ethtool_ops *ops = dev->ethtool_ops;
	int ret;
	void *rule_buf = NULL;
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	if (!ops->get_rxnfc)
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		return -EOPNOTSUPP;

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	/* struct ethtool_rxnfc was originally defined for
	 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
	 * members.  User-space might still be using that
	 * definition. */
	if (cmd == ETHTOOL_GRXFH)
		info_size = (offsetof(struct ethtool_rxnfc, data) +
			     sizeof(info.data));

	if (copy_from_user(&info, useraddr, info_size))
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		return -EFAULT;

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	if (info.cmd == ETHTOOL_GRXCLSRLALL) {
		if (info.rule_cnt > 0) {
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			if (info.rule_cnt <= KMALLOC_MAX_SIZE / sizeof(u32))
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				rule_buf = kzalloc(info.rule_cnt * sizeof(u32),
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						   GFP_USER);
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			if (!rule_buf)
				return -ENOMEM;
		}
	}
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	ret = ops->get_rxnfc(dev, &info, rule_buf);
	if (ret < 0)
		goto err_out;

	ret = -EFAULT;
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	if (copy_to_user(useraddr, &info, info_size))
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		goto err_out;

	if (rule_buf) {
		useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
		if (copy_to_user(useraddr, rule_buf,
				 info.rule_cnt * sizeof(u32)))
			goto err_out;
	}
	ret = 0;

err_out:
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	kfree(rule_buf);
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	return ret;
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}

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static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev,
						     void __user *useraddr)
{
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	u32 user_size, dev_size;
	u32 *indir;
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	int ret;

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	if (!dev->ethtool_ops->get_rxfh_indir_size ||
	    !dev->ethtool_ops->get_rxfh_indir)
		return -EOPNOTSUPP;
	dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
	if (dev_size == 0)
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		return -EOPNOTSUPP;

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	if (copy_from_user(&user_size,
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			   useraddr + offsetof(struct ethtool_rxfh_indir, size),
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			   sizeof(user_size)))
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		return -EFAULT;

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	if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh_indir, size),
			 &dev_size, sizeof(dev_size)))
		return -EFAULT;

	/* If the user buffer size is 0, this is just a query for the
	 * device table size.  Otherwise, if it's smaller than the
	 * device table size it's an error.
	 */
	if (user_size < dev_size)
		return user_size == 0 ? 0 : -EINVAL;

	indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
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	if (!indir)
		return -ENOMEM;

	ret = dev->ethtool_ops->get_rxfh_indir(dev, indir);
	if (ret)
		goto out;

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	if (copy_to_user(useraddr +
			 offsetof(struct ethtool_rxfh_indir, ring_index[0]),
			 indir, dev_size * sizeof(indir[0])))
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		ret = -EFAULT;

out:
	kfree(indir);
	return ret;
}

static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
						     void __user *useraddr)
{
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	struct ethtool_rxnfc rx_rings;
	u32 user_size, dev_size, i;
	u32 *indir;
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	int ret;

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	if (!dev->ethtool_ops->get_rxfh_indir_size ||
	    !dev->ethtool_ops->set_rxfh_indir ||
	    !dev->ethtool_ops->get_rxnfc)
		return -EOPNOTSUPP;
	dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
	if (dev_size == 0)
586 587
		return -EOPNOTSUPP;

588
	if (copy_from_user(&user_size,
589
			   useraddr + offsetof(struct ethtool_rxfh_indir, size),
590
			   sizeof(user_size)))
591 592
		return -EFAULT;

593
	if (user_size != 0 && user_size != dev_size)
594 595 596
		return -EINVAL;

	indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
597 598 599
	if (!indir)
		return -ENOMEM;

600 601 602 603
	rx_rings.cmd = ETHTOOL_GRXRINGS;
	ret = dev->ethtool_ops->get_rxnfc(dev, &rx_rings, NULL);
	if (ret)
		goto out;
604 605 606 607 608 609 610 611 612 613 614

	if (user_size == 0) {
		for (i = 0; i < dev_size; i++)
			indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
	} else {
		if (copy_from_user(indir,
				  useraddr +
				  offsetof(struct ethtool_rxfh_indir,
					   ring_index[0]),
				  dev_size * sizeof(indir[0]))) {
			ret = -EFAULT;
615 616
			goto out;
		}
617 618 619 620 621 622 623 624

		/* Validate ring indices */
		for (i = 0; i < dev_size; i++) {
			if (indir[i] >= rx_rings.data) {
				ret = -EINVAL;
				goto out;
			}
		}
625 626
	}

627 628 629 630 631 632 633
	ret = dev->ethtool_ops->set_rxfh_indir(dev, indir);

out:
	kfree(indir);
	return ret;
}

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static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
{
	struct ethtool_regs regs;
637
	const struct ethtool_ops *ops = dev->ethtool_ops;
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	void *regbuf;
	int reglen, ret;

	if (!ops->get_regs || !ops->get_regs_len)
		return -EOPNOTSUPP;

	if (copy_from_user(&regs, useraddr, sizeof(regs)))
		return -EFAULT;

	reglen = ops->get_regs_len(dev);
	if (regs.len > reglen)
		regs.len = reglen;

651
	regbuf = vzalloc(reglen);
652
	if (reglen && !regbuf)
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		return -ENOMEM;

	ops->get_regs(dev, &regs, regbuf);

	ret = -EFAULT;
	if (copy_to_user(useraddr, &regs, sizeof(regs)))
		goto out;
	useraddr += offsetof(struct ethtool_regs, data);
661
	if (regbuf && copy_to_user(useraddr, regbuf, regs.len))
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		goto out;
	ret = 0;

 out:
666
	vfree(regbuf);
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	return ret;
}

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static int ethtool_reset(struct net_device *dev, char __user *useraddr)
{
	struct ethtool_value reset;
	int ret;

	if (!dev->ethtool_ops->reset)
		return -EOPNOTSUPP;

	if (copy_from_user(&reset, useraddr, sizeof(reset)))
		return -EFAULT;

	ret = dev->ethtool_ops->reset(dev, &reset.data);
	if (ret)
		return ret;

	if (copy_to_user(useraddr, &reset, sizeof(reset)))
		return -EFAULT;
	return 0;
}

L
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static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
{
692
	struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
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	if (!dev->ethtool_ops->get_wol)
		return -EOPNOTSUPP;

	dev->ethtool_ops->get_wol(dev, &wol);

	if (copy_to_user(useraddr, &wol, sizeof(wol)))
		return -EFAULT;
	return 0;
}

static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
{
	struct ethtool_wolinfo wol;

	if (!dev->ethtool_ops->set_wol)
		return -EOPNOTSUPP;

	if (copy_from_user(&wol, useraddr, sizeof(wol)))
		return -EFAULT;

	return dev->ethtool_ops->set_wol(dev, &wol);
}

static int ethtool_nway_reset(struct net_device *dev)
{
	if (!dev->ethtool_ops->nway_reset)
		return -EOPNOTSUPP;

	return dev->ethtool_ops->nway_reset(dev);
}

725 726 727 728 729 730 731 732 733 734 735 736 737 738
static int ethtool_get_link(struct net_device *dev, char __user *useraddr)
{
	struct ethtool_value edata = { .cmd = ETHTOOL_GLINK };

	if (!dev->ethtool_ops->get_link)
		return -EOPNOTSUPP;

	edata.data = netif_running(dev) && dev->ethtool_ops->get_link(dev);

	if (copy_to_user(useraddr, &edata, sizeof(edata)))
		return -EFAULT;
	return 0;
}

L
Linus Torvalds 已提交
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static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
{
	struct ethtool_eeprom eeprom;
742
	const struct ethtool_ops *ops = dev->ethtool_ops;
743 744
	void __user *userbuf = useraddr + sizeof(eeprom);
	u32 bytes_remaining;
L
Linus Torvalds 已提交
745
	u8 *data;
746
	int ret = 0;
L
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	if (!ops->get_eeprom || !ops->get_eeprom_len)
		return -EOPNOTSUPP;

	if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
		return -EFAULT;

	/* Check for wrap and zero */
	if (eeprom.offset + eeprom.len <= eeprom.offset)
		return -EINVAL;

	/* Check for exceeding total eeprom len */
	if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
		return -EINVAL;

762
	data = kmalloc(PAGE_SIZE, GFP_USER);
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Linus Torvalds 已提交
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	if (!data)
		return -ENOMEM;

766 767 768 769 770 771 772 773 774 775 776 777 778 779 780
	bytes_remaining = eeprom.len;
	while (bytes_remaining > 0) {
		eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);

		ret = ops->get_eeprom(dev, &eeprom, data);
		if (ret)
			break;
		if (copy_to_user(userbuf, data, eeprom.len)) {
			ret = -EFAULT;
			break;
		}
		userbuf += eeprom.len;
		eeprom.offset += eeprom.len;
		bytes_remaining -= eeprom.len;
	}
L
Linus Torvalds 已提交
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782 783 784 785 786
	eeprom.len = userbuf - (useraddr + sizeof(eeprom));
	eeprom.offset -= eeprom.len;
	if (copy_to_user(useraddr, &eeprom, sizeof(eeprom)))
		ret = -EFAULT;

L
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	kfree(data);
	return ret;
}

static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr)
{
	struct ethtool_eeprom eeprom;
794
	const struct ethtool_ops *ops = dev->ethtool_ops;
795 796
	void __user *userbuf = useraddr + sizeof(eeprom);
	u32 bytes_remaining;
L
Linus Torvalds 已提交
797
	u8 *data;
798
	int ret = 0;
L
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799 800 801 802 803 804 805 806 807 808 809 810 811 812 813

	if (!ops->set_eeprom || !ops->get_eeprom_len)
		return -EOPNOTSUPP;

	if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
		return -EFAULT;

	/* Check for wrap and zero */
	if (eeprom.offset + eeprom.len <= eeprom.offset)
		return -EINVAL;

	/* Check for exceeding total eeprom len */
	if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
		return -EINVAL;

814
	data = kmalloc(PAGE_SIZE, GFP_USER);
L
Linus Torvalds 已提交
815 816 817
	if (!data)
		return -ENOMEM;

818 819 820 821 822 823 824 825 826 827 828 829 830 831 832
	bytes_remaining = eeprom.len;
	while (bytes_remaining > 0) {
		eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);

		if (copy_from_user(data, userbuf, eeprom.len)) {
			ret = -EFAULT;
			break;
		}
		ret = ops->set_eeprom(dev, &eeprom, data);
		if (ret)
			break;
		userbuf += eeprom.len;
		eeprom.offset += eeprom.len;
		bytes_remaining -= eeprom.len;
	}
L
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833 834 835 836 837

	kfree(data);
	return ret;
}

838 839
static noinline_for_stack int ethtool_get_coalesce(struct net_device *dev,
						   void __user *useraddr)
L
Linus Torvalds 已提交
840
{
841
	struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
L
Linus Torvalds 已提交
842 843 844 845 846 847 848 849 850 851 852

	if (!dev->ethtool_ops->get_coalesce)
		return -EOPNOTSUPP;

	dev->ethtool_ops->get_coalesce(dev, &coalesce);

	if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
		return -EFAULT;
	return 0;
}

853 854
static noinline_for_stack int ethtool_set_coalesce(struct net_device *dev,
						   void __user *useraddr)
L
Linus Torvalds 已提交
855 856 857
{
	struct ethtool_coalesce coalesce;

858
	if (!dev->ethtool_ops->set_coalesce)
L
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		return -EOPNOTSUPP;

	if (copy_from_user(&coalesce, useraddr, sizeof(coalesce)))
		return -EFAULT;

	return dev->ethtool_ops->set_coalesce(dev, &coalesce);
}

static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr)
{
869
	struct ethtool_ringparam ringparam = { .cmd = ETHTOOL_GRINGPARAM };
L
Linus Torvalds 已提交
870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893

	if (!dev->ethtool_ops->get_ringparam)
		return -EOPNOTSUPP;

	dev->ethtool_ops->get_ringparam(dev, &ringparam);

	if (copy_to_user(useraddr, &ringparam, sizeof(ringparam)))
		return -EFAULT;
	return 0;
}

static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
{
	struct ethtool_ringparam ringparam;

	if (!dev->ethtool_ops->set_ringparam)
		return -EOPNOTSUPP;

	if (copy_from_user(&ringparam, useraddr, sizeof(ringparam)))
		return -EFAULT;

	return dev->ethtool_ops->set_ringparam(dev, &ringparam);
}

894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922
static noinline_for_stack int ethtool_get_channels(struct net_device *dev,
						   void __user *useraddr)
{
	struct ethtool_channels channels = { .cmd = ETHTOOL_GCHANNELS };

	if (!dev->ethtool_ops->get_channels)
		return -EOPNOTSUPP;

	dev->ethtool_ops->get_channels(dev, &channels);

	if (copy_to_user(useraddr, &channels, sizeof(channels)))
		return -EFAULT;
	return 0;
}

static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
						   void __user *useraddr)
{
	struct ethtool_channels channels;

	if (!dev->ethtool_ops->set_channels)
		return -EOPNOTSUPP;

	if (copy_from_user(&channels, useraddr, sizeof(channels)))
		return -EFAULT;

	return dev->ethtool_ops->set_channels(dev, &channels);
}

L
Linus Torvalds 已提交
923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940
static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
{
	struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM };

	if (!dev->ethtool_ops->get_pauseparam)
		return -EOPNOTSUPP;

	dev->ethtool_ops->get_pauseparam(dev, &pauseparam);

	if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam)))
		return -EFAULT;
	return 0;
}

static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr)
{
	struct ethtool_pauseparam pauseparam;

941
	if (!dev->ethtool_ops->set_pauseparam)
L
Linus Torvalds 已提交
942 943 944 945 946 947 948 949 950 951 952
		return -EOPNOTSUPP;

	if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam)))
		return -EFAULT;

	return dev->ethtool_ops->set_pauseparam(dev, &pauseparam);
}

static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
{
	struct ethtool_test test;
953
	const struct ethtool_ops *ops = dev->ethtool_ops;
L
Linus Torvalds 已提交
954
	u64 *data;
955
	int ret, test_len;
L
Linus Torvalds 已提交
956

957
	if (!ops->self_test || !ops->get_sset_count)
L
Linus Torvalds 已提交
958 959
		return -EOPNOTSUPP;

960
	test_len = ops->get_sset_count(dev, ETH_SS_TEST);
961 962 963 964
	if (test_len < 0)
		return test_len;
	WARN_ON(test_len == 0);

L
Linus Torvalds 已提交
965 966 967
	if (copy_from_user(&test, useraddr, sizeof(test)))
		return -EFAULT;

968 969
	test.len = test_len;
	data = kmalloc(test_len * sizeof(u64), GFP_USER);
L
Linus Torvalds 已提交
970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996
	if (!data)
		return -ENOMEM;

	ops->self_test(dev, &test, data);

	ret = -EFAULT;
	if (copy_to_user(useraddr, &test, sizeof(test)))
		goto out;
	useraddr += sizeof(test);
	if (copy_to_user(useraddr, data, test.len * sizeof(u64)))
		goto out;
	ret = 0;

 out:
	kfree(data);
	return ret;
}

static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
{
	struct ethtool_gstrings gstrings;
	u8 *data;
	int ret;

	if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
		return -EFAULT;

997
	ret = __ethtool_get_sset_count(dev, gstrings.string_set);
998 999 1000 1001
	if (ret < 0)
		return ret;

	gstrings.len = ret;
L
Linus Torvalds 已提交
1002 1003 1004 1005 1006

	data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
	if (!data)
		return -ENOMEM;

1007
	__ethtool_get_strings(dev, gstrings.string_set, data);
L
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1008 1009 1010 1011 1012 1013 1014 1015 1016

	ret = -EFAULT;
	if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
		goto out;
	useraddr += sizeof(gstrings);
	if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
		goto out;
	ret = 0;

1017
out:
L
Linus Torvalds 已提交
1018 1019 1020 1021 1022 1023 1024
	kfree(data);
	return ret;
}

static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
{
	struct ethtool_value id;
1025 1026
	static bool busy;
	int rc;
L
Linus Torvalds 已提交
1027

1028
	if (!dev->ethtool_ops->set_phys_id)
L
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1029 1030
		return -EOPNOTSUPP;

1031 1032 1033
	if (busy)
		return -EBUSY;

L
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1034 1035 1036
	if (copy_from_user(&id, useraddr, sizeof(id)))
		return -EFAULT;

1037
	rc = dev->ethtool_ops->set_phys_id(dev, ETHTOOL_ID_ACTIVE);
1038
	if (rc < 0)
1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050
		return rc;

	/* Drop the RTNL lock while waiting, but prevent reentry or
	 * removal of the device.
	 */
	busy = true;
	dev_hold(dev);
	rtnl_unlock();

	if (rc == 0) {
		/* Driver will handle this itself */
		schedule_timeout_interruptible(
1051
			id.data ? (id.data * HZ) : MAX_SCHEDULE_TIMEOUT);
1052
	} else {
1053 1054 1055 1056
		/* Driver expects to be called at twice the frequency in rc */
		int n = rc * 2, i, interval = HZ / n;

		/* Count down seconds */
1057
		do {
1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068
			/* Count down iterations per second */
			i = n;
			do {
				rtnl_lock();
				rc = dev->ethtool_ops->set_phys_id(dev,
				    (i & 1) ? ETHTOOL_ID_OFF : ETHTOOL_ID_ON);
				rtnl_unlock();
				if (rc)
					break;
				schedule_timeout_interruptible(interval);
			} while (!signal_pending(current) && --i != 0);
1069 1070 1071 1072 1073 1074 1075 1076 1077 1078
		} while (!signal_pending(current) &&
			 (id.data == 0 || --id.data != 0));
	}

	rtnl_lock();
	dev_put(dev);
	busy = false;

	(void)dev->ethtool_ops->set_phys_id(dev, ETHTOOL_ID_INACTIVE);
	return rc;
L
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1079 1080 1081 1082 1083
}

static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
{
	struct ethtool_stats stats;
1084
	const struct ethtool_ops *ops = dev->ethtool_ops;
L
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1085
	u64 *data;
1086
	int ret, n_stats;
L
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1087

1088
	if (!ops->get_ethtool_stats || !ops->get_sset_count)
L
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1089 1090
		return -EOPNOTSUPP;

1091
	n_stats = ops->get_sset_count(dev, ETH_SS_STATS);
1092 1093 1094 1095
	if (n_stats < 0)
		return n_stats;
	WARN_ON(n_stats == 0);

L
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1096 1097 1098
	if (copy_from_user(&stats, useraddr, sizeof(stats)))
		return -EFAULT;

1099 1100
	stats.n_stats = n_stats;
	data = kmalloc(n_stats * sizeof(u64), GFP_USER);
L
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1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118
	if (!data)
		return -ENOMEM;

	ops->get_ethtool_stats(dev, &stats, data);

	ret = -EFAULT;
	if (copy_to_user(useraddr, &stats, sizeof(stats)))
		goto out;
	useraddr += sizeof(stats);
	if (copy_to_user(useraddr, data, stats.n_stats * sizeof(u64)))
		goto out;
	ret = 0;

 out:
	kfree(data);
	return ret;
}

1119
static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
1120 1121 1122
{
	struct ethtool_perm_addr epaddr;

1123
	if (copy_from_user(&epaddr, useraddr, sizeof(epaddr)))
1124 1125
		return -EFAULT;

1126 1127 1128
	if (epaddr.size < dev->addr_len)
		return -ETOOSMALL;
	epaddr.size = dev->addr_len;
1129 1130

	if (copy_to_user(useraddr, &epaddr, sizeof(epaddr)))
1131
		return -EFAULT;
1132
	useraddr += sizeof(epaddr);
1133 1134 1135
	if (copy_to_user(useraddr, dev->perm_addr, epaddr.size))
		return -EFAULT;
	return 0;
1136 1137
}

1138 1139
static int ethtool_get_value(struct net_device *dev, char __user *useraddr,
			     u32 cmd, u32 (*actor)(struct net_device *))
1140
{
1141
	struct ethtool_value edata = { .cmd = cmd };
1142

1143
	if (!actor)
1144 1145
		return -EOPNOTSUPP;

1146
	edata.data = actor(dev);
1147 1148 1149 1150 1151 1152

	if (copy_to_user(useraddr, &edata, sizeof(edata)))
		return -EFAULT;
	return 0;
}

1153 1154
static int ethtool_set_value_void(struct net_device *dev, char __user *useraddr,
			     void (*actor)(struct net_device *, u32))
1155 1156 1157
{
	struct ethtool_value edata;

1158
	if (!actor)
1159 1160 1161 1162 1163
		return -EOPNOTSUPP;

	if (copy_from_user(&edata, useraddr, sizeof(edata)))
		return -EFAULT;

1164
	actor(dev, edata.data);
1165 1166 1167
	return 0;
}

1168 1169
static int ethtool_set_value(struct net_device *dev, char __user *useraddr,
			     int (*actor)(struct net_device *, u32))
1170 1171 1172
{
	struct ethtool_value edata;

1173
	if (!actor)
1174 1175 1176 1177 1178
		return -EOPNOTSUPP;

	if (copy_from_user(&edata, useraddr, sizeof(edata)))
		return -EFAULT;

1179
	return actor(dev, edata.data);
1180 1181
}

1182 1183
static noinline_for_stack int ethtool_flash_device(struct net_device *dev,
						   char __user *useraddr)
1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195
{
	struct ethtool_flash efl;

	if (copy_from_user(&efl, useraddr, sizeof(efl)))
		return -EFAULT;

	if (!dev->ethtool_ops->flash_device)
		return -EOPNOTSUPP;

	return dev->ethtool_ops->flash_device(dev, &efl);
}

1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276
static int ethtool_set_dump(struct net_device *dev,
			void __user *useraddr)
{
	struct ethtool_dump dump;

	if (!dev->ethtool_ops->set_dump)
		return -EOPNOTSUPP;

	if (copy_from_user(&dump, useraddr, sizeof(dump)))
		return -EFAULT;

	return dev->ethtool_ops->set_dump(dev, &dump);
}

static int ethtool_get_dump_flag(struct net_device *dev,
				void __user *useraddr)
{
	int ret;
	struct ethtool_dump dump;
	const struct ethtool_ops *ops = dev->ethtool_ops;

	if (!dev->ethtool_ops->get_dump_flag)
		return -EOPNOTSUPP;

	if (copy_from_user(&dump, useraddr, sizeof(dump)))
		return -EFAULT;

	ret = ops->get_dump_flag(dev, &dump);
	if (ret)
		return ret;

	if (copy_to_user(useraddr, &dump, sizeof(dump)))
		return -EFAULT;
	return 0;
}

static int ethtool_get_dump_data(struct net_device *dev,
				void __user *useraddr)
{
	int ret;
	__u32 len;
	struct ethtool_dump dump, tmp;
	const struct ethtool_ops *ops = dev->ethtool_ops;
	void *data = NULL;

	if (!dev->ethtool_ops->get_dump_data ||
		!dev->ethtool_ops->get_dump_flag)
		return -EOPNOTSUPP;

	if (copy_from_user(&dump, useraddr, sizeof(dump)))
		return -EFAULT;

	memset(&tmp, 0, sizeof(tmp));
	tmp.cmd = ETHTOOL_GET_DUMP_FLAG;
	ret = ops->get_dump_flag(dev, &tmp);
	if (ret)
		return ret;

	len = (tmp.len > dump.len) ? dump.len : tmp.len;
	if (!len)
		return -EFAULT;

	data = vzalloc(tmp.len);
	if (!data)
		return -ENOMEM;
	ret = ops->get_dump_data(dev, &dump, data);
	if (ret)
		goto out;

	if (copy_to_user(useraddr, &dump, sizeof(dump))) {
		ret = -EFAULT;
		goto out;
	}
	useraddr += offsetof(struct ethtool_dump, data);
	if (copy_to_user(useraddr, data, len))
		ret = -EFAULT;
out:
	vfree(data);
	return ret;
}

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/* The main entry point in this file.  Called from net/core/dev.c */

1279
int dev_ethtool(struct net *net, struct ifreq *ifr)
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{
1281
	struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
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	void __user *useraddr = ifr->ifr_data;
	u32 ethcmd;
	int rc;
1285
	u32 old_features;
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	if (!dev || !netif_device_present(dev))
		return -ENODEV;

1290
	if (copy_from_user(&ethcmd, useraddr, sizeof(ethcmd)))
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		return -EFAULT;

1293 1294 1295 1296 1297 1298 1299 1300 1301 1302
	if (!dev->ethtool_ops) {
		/* ETHTOOL_GDRVINFO does not require any driver support.
		 * It is also unprivileged and does not change anything,
		 * so we can take a shortcut to it. */
		if (ethcmd == ETHTOOL_GDRVINFO)
			return ethtool_get_drvinfo(dev, useraddr);
		else
			return -EOPNOTSUPP;
	}

1303
	/* Allow some commands to be done by anyone */
1304
	switch (ethcmd) {
1305
	case ETHTOOL_GSET:
1306 1307 1308 1309 1310 1311 1312 1313
	case ETHTOOL_GDRVINFO:
	case ETHTOOL_GMSGLVL:
	case ETHTOOL_GCOALESCE:
	case ETHTOOL_GRINGPARAM:
	case ETHTOOL_GPAUSEPARAM:
	case ETHTOOL_GRXCSUM:
	case ETHTOOL_GTXCSUM:
	case ETHTOOL_GSG:
1314
	case ETHTOOL_GSSET_INFO:
1315 1316 1317 1318 1319
	case ETHTOOL_GSTRINGS:
	case ETHTOOL_GTSO:
	case ETHTOOL_GPERMADDR:
	case ETHTOOL_GUFO:
	case ETHTOOL_GGSO:
1320
	case ETHTOOL_GGRO:
1321 1322
	case ETHTOOL_GFLAGS:
	case ETHTOOL_GPFLAGS:
1323
	case ETHTOOL_GRXFH:
1324 1325 1326 1327
	case ETHTOOL_GRXRINGS:
	case ETHTOOL_GRXCLSRLCNT:
	case ETHTOOL_GRXCLSRULE:
	case ETHTOOL_GRXCLSRLALL:
1328
	case ETHTOOL_GFEATURES:
1329 1330 1331 1332 1333 1334
		break;
	default:
		if (!capable(CAP_NET_ADMIN))
			return -EPERM;
	}

1335 1336 1337
	if (dev->ethtool_ops->begin) {
		rc = dev->ethtool_ops->begin(dev);
		if (rc  < 0)
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			return rc;
1339
	}
1340 1341
	old_features = dev->features;

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	switch (ethcmd) {
	case ETHTOOL_GSET:
		rc = ethtool_get_settings(dev, useraddr);
		break;
	case ETHTOOL_SSET:
		rc = ethtool_set_settings(dev, useraddr);
		break;
	case ETHTOOL_GDRVINFO:
		rc = ethtool_get_drvinfo(dev, useraddr);
		break;
	case ETHTOOL_GREGS:
		rc = ethtool_get_regs(dev, useraddr);
		break;
	case ETHTOOL_GWOL:
		rc = ethtool_get_wol(dev, useraddr);
		break;
	case ETHTOOL_SWOL:
		rc = ethtool_set_wol(dev, useraddr);
		break;
	case ETHTOOL_GMSGLVL:
1362 1363
		rc = ethtool_get_value(dev, useraddr, ethcmd,
				       dev->ethtool_ops->get_msglevel);
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		break;
	case ETHTOOL_SMSGLVL:
1366 1367
		rc = ethtool_set_value_void(dev, useraddr,
				       dev->ethtool_ops->set_msglevel);
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		break;
	case ETHTOOL_NWAY_RST:
		rc = ethtool_nway_reset(dev);
		break;
	case ETHTOOL_GLINK:
1373
		rc = ethtool_get_link(dev, useraddr);
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		break;
	case ETHTOOL_GEEPROM:
		rc = ethtool_get_eeprom(dev, useraddr);
		break;
	case ETHTOOL_SEEPROM:
		rc = ethtool_set_eeprom(dev, useraddr);
		break;
	case ETHTOOL_GCOALESCE:
		rc = ethtool_get_coalesce(dev, useraddr);
		break;
	case ETHTOOL_SCOALESCE:
		rc = ethtool_set_coalesce(dev, useraddr);
		break;
	case ETHTOOL_GRINGPARAM:
		rc = ethtool_get_ringparam(dev, useraddr);
		break;
	case ETHTOOL_SRINGPARAM:
		rc = ethtool_set_ringparam(dev, useraddr);
		break;
	case ETHTOOL_GPAUSEPARAM:
		rc = ethtool_get_pauseparam(dev, useraddr);
		break;
	case ETHTOOL_SPAUSEPARAM:
		rc = ethtool_set_pauseparam(dev, useraddr);
		break;
	case ETHTOOL_TEST:
		rc = ethtool_self_test(dev, useraddr);
		break;
	case ETHTOOL_GSTRINGS:
		rc = ethtool_get_strings(dev, useraddr);
		break;
	case ETHTOOL_PHYS_ID:
		rc = ethtool_phys_id(dev, useraddr);
		break;
	case ETHTOOL_GSTATS:
		rc = ethtool_get_stats(dev, useraddr);
		break;
1411 1412 1413
	case ETHTOOL_GPERMADDR:
		rc = ethtool_get_perm_addr(dev, useraddr);
		break;
1414
	case ETHTOOL_GFLAGS:
1415
		rc = ethtool_get_value(dev, useraddr, ethcmd,
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Michał Mirosław 已提交
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					__ethtool_get_flags);
1417 1418
		break;
	case ETHTOOL_SFLAGS:
1419
		rc = ethtool_set_value(dev, useraddr, __ethtool_set_flags);
1420
		break;
1421
	case ETHTOOL_GPFLAGS:
1422 1423
		rc = ethtool_get_value(dev, useraddr, ethcmd,
				       dev->ethtool_ops->get_priv_flags);
1424 1425
		break;
	case ETHTOOL_SPFLAGS:
1426 1427
		rc = ethtool_set_value(dev, useraddr,
				       dev->ethtool_ops->set_priv_flags);
1428
		break;
1429
	case ETHTOOL_GRXFH:
1430 1431 1432 1433
	case ETHTOOL_GRXRINGS:
	case ETHTOOL_GRXCLSRLCNT:
	case ETHTOOL_GRXCLSRULE:
	case ETHTOOL_GRXCLSRLALL:
1434
		rc = ethtool_get_rxnfc(dev, ethcmd, useraddr);
1435 1436
		break;
	case ETHTOOL_SRXFH:
1437 1438
	case ETHTOOL_SRXCLSRLDEL:
	case ETHTOOL_SRXCLSRLINS:
1439
		rc = ethtool_set_rxnfc(dev, ethcmd, useraddr);
1440
		break;
1441 1442 1443
	case ETHTOOL_FLASHDEV:
		rc = ethtool_flash_device(dev, useraddr);
		break;
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	case ETHTOOL_RESET:
		rc = ethtool_reset(dev, useraddr);
		break;
1447 1448 1449
	case ETHTOOL_GSSET_INFO:
		rc = ethtool_get_sset_info(dev, useraddr);
		break;
1450 1451 1452 1453 1454 1455
	case ETHTOOL_GRXFHINDIR:
		rc = ethtool_get_rxfh_indir(dev, useraddr);
		break;
	case ETHTOOL_SRXFHINDIR:
		rc = ethtool_set_rxfh_indir(dev, useraddr);
		break;
1456 1457 1458 1459 1460 1461
	case ETHTOOL_GFEATURES:
		rc = ethtool_get_features(dev, useraddr);
		break;
	case ETHTOOL_SFEATURES:
		rc = ethtool_set_features(dev, useraddr);
		break;
1462
	case ETHTOOL_GTXCSUM:
1463
	case ETHTOOL_GRXCSUM:
1464 1465 1466 1467 1468 1469 1470 1471
	case ETHTOOL_GSG:
	case ETHTOOL_GTSO:
	case ETHTOOL_GUFO:
	case ETHTOOL_GGSO:
	case ETHTOOL_GGRO:
		rc = ethtool_get_one_feature(dev, useraddr, ethcmd);
		break;
	case ETHTOOL_STXCSUM:
1472
	case ETHTOOL_SRXCSUM:
1473 1474 1475 1476 1477 1478 1479
	case ETHTOOL_SSG:
	case ETHTOOL_STSO:
	case ETHTOOL_SUFO:
	case ETHTOOL_SGSO:
	case ETHTOOL_SGRO:
		rc = ethtool_set_one_feature(dev, useraddr, ethcmd);
		break;
1480 1481 1482 1483 1484 1485
	case ETHTOOL_GCHANNELS:
		rc = ethtool_get_channels(dev, useraddr);
		break;
	case ETHTOOL_SCHANNELS:
		rc = ethtool_set_channels(dev, useraddr);
		break;
1486 1487 1488 1489 1490 1491 1492 1493 1494
	case ETHTOOL_SET_DUMP:
		rc = ethtool_set_dump(dev, useraddr);
		break;
	case ETHTOOL_GET_DUMP_FLAG:
		rc = ethtool_get_dump_flag(dev, useraddr);
		break;
	case ETHTOOL_GET_DUMP_DATA:
		rc = ethtool_get_dump_data(dev, useraddr);
		break;
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	default:
1496
		rc = -EOPNOTSUPP;
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	}
1498

1499
	if (dev->ethtool_ops->complete)
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		dev->ethtool_ops->complete(dev);
1501 1502 1503 1504

	if (old_features != dev->features)
		netdev_features_change(dev);

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	return rc;
}