b7c7d01aae
There is a conflict between commitb00916b1anda77f5db3. This patch resolves the conflict by clearing the heap allocation in ethtool_get_regs(). Cc: stable@kernel.org Signed-off-by: Eugene Teo <eugeneteo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
1708 lines
40 KiB
C
1708 lines
40 KiB
C
/*
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* net/core/ethtool.c - Ethtool ioctl handler
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* Copyright (c) 2003 Matthew Wilcox <matthew@wil.cx>
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*
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* 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
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/capability.h>
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#include <linux/errno.h>
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#include <linux/ethtool.h>
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#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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/*
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* Some useful ethtool_ops methods that're device independent.
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* If we find that all drivers want to do the same thing here,
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* we can turn these into dev_() function calls.
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*/
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u32 ethtool_op_get_link(struct net_device *dev)
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{
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return netif_carrier_ok(dev) ? 1 : 0;
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}
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EXPORT_SYMBOL(ethtool_op_get_link);
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u32 ethtool_op_get_rx_csum(struct net_device *dev)
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{
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return (dev->features & NETIF_F_ALL_CSUM) != 0;
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}
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EXPORT_SYMBOL(ethtool_op_get_rx_csum);
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u32 ethtool_op_get_tx_csum(struct net_device *dev)
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{
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return (dev->features & NETIF_F_ALL_CSUM) != 0;
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}
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EXPORT_SYMBOL(ethtool_op_get_tx_csum);
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int ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
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{
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if (data)
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dev->features |= NETIF_F_IP_CSUM;
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else
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dev->features &= ~NETIF_F_IP_CSUM;
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return 0;
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}
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int ethtool_op_set_tx_hw_csum(struct net_device *dev, u32 data)
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{
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if (data)
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dev->features |= NETIF_F_HW_CSUM;
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else
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dev->features &= ~NETIF_F_HW_CSUM;
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return 0;
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}
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EXPORT_SYMBOL(ethtool_op_set_tx_hw_csum);
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int ethtool_op_set_tx_ipv6_csum(struct net_device *dev, u32 data)
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{
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if (data)
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dev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
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else
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dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
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return 0;
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}
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EXPORT_SYMBOL(ethtool_op_set_tx_ipv6_csum);
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u32 ethtool_op_get_sg(struct net_device *dev)
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{
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return (dev->features & NETIF_F_SG) != 0;
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}
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EXPORT_SYMBOL(ethtool_op_get_sg);
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int ethtool_op_set_sg(struct net_device *dev, u32 data)
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{
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if (data)
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dev->features |= NETIF_F_SG;
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else
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dev->features &= ~NETIF_F_SG;
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return 0;
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}
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EXPORT_SYMBOL(ethtool_op_set_sg);
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u32 ethtool_op_get_tso(struct net_device *dev)
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{
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return (dev->features & NETIF_F_TSO) != 0;
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}
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EXPORT_SYMBOL(ethtool_op_get_tso);
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int ethtool_op_set_tso(struct net_device *dev, u32 data)
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{
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if (data)
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dev->features |= NETIF_F_TSO;
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else
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dev->features &= ~NETIF_F_TSO;
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return 0;
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}
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EXPORT_SYMBOL(ethtool_op_set_tso);
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u32 ethtool_op_get_ufo(struct net_device *dev)
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{
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return (dev->features & NETIF_F_UFO) != 0;
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}
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EXPORT_SYMBOL(ethtool_op_get_ufo);
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int ethtool_op_set_ufo(struct net_device *dev, u32 data)
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{
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if (data)
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dev->features |= NETIF_F_UFO;
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else
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dev->features &= ~NETIF_F_UFO;
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return 0;
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}
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EXPORT_SYMBOL(ethtool_op_set_ufo);
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/* the following list of flags are the same as their associated
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* NETIF_F_xxx values in include/linux/netdevice.h
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*/
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static const u32 flags_dup_features =
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(ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | ETH_FLAG_NTUPLE |
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ETH_FLAG_RXHASH);
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u32 ethtool_op_get_flags(struct net_device *dev)
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{
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/* in the future, this function will probably contain additional
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* handling for flags which are not so easily handled
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* by a simple masking operation
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*/
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return dev->features & flags_dup_features;
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}
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EXPORT_SYMBOL(ethtool_op_get_flags);
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int ethtool_op_set_flags(struct net_device *dev, u32 data, u32 supported)
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{
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if (data & ~supported)
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return -EINVAL;
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dev->features = ((dev->features & ~flags_dup_features) |
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(data & flags_dup_features));
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return 0;
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}
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EXPORT_SYMBOL(ethtool_op_set_flags);
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void ethtool_ntuple_flush(struct net_device *dev)
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{
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struct ethtool_rx_ntuple_flow_spec_container *fsc, *f;
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list_for_each_entry_safe(fsc, f, &dev->ethtool_ntuple_list.list, list) {
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list_del(&fsc->list);
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kfree(fsc);
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}
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dev->ethtool_ntuple_list.count = 0;
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}
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EXPORT_SYMBOL(ethtool_ntuple_flush);
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/* Handlers for each ethtool command */
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static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
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{
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struct ethtool_cmd cmd = { .cmd = ETHTOOL_GSET };
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int err;
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if (!dev->ethtool_ops->get_settings)
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return -EOPNOTSUPP;
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err = dev->ethtool_ops->get_settings(dev, &cmd);
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if (err < 0)
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return err;
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if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
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return -EFAULT;
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return 0;
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}
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static int ethtool_set_settings(struct net_device *dev, void __user *useraddr)
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{
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struct ethtool_cmd cmd;
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if (!dev->ethtool_ops->set_settings)
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return -EOPNOTSUPP;
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if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
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return -EFAULT;
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return dev->ethtool_ops->set_settings(dev, &cmd);
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}
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static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
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void __user *useraddr)
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{
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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));
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info.cmd = ETHTOOL_GDRVINFO;
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if (ops && ops->get_drvinfo) {
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ops->get_drvinfo(dev, &info);
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} else if (dev->dev.parent && dev->dev.parent->driver) {
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strlcpy(info.bus_info, dev_name(dev->dev.parent),
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sizeof(info.bus_info));
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strlcpy(info.driver, dev->dev.parent->driver->name,
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sizeof(info.driver));
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} else {
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return -EOPNOTSUPP;
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}
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/*
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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;
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rc = ops->get_sset_count(dev, ETH_SS_TEST);
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if (rc >= 0)
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info.testinfo_len = rc;
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rc = ops->get_sset_count(dev, ETH_SS_STATS);
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if (rc >= 0)
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info.n_stats = rc;
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rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
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if (rc >= 0)
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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);
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if (copy_to_user(useraddr, &info, sizeof(info)))
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return -EFAULT;
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return 0;
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}
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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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{
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struct ethtool_sset_info info;
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const struct ethtool_ops *ops = dev->ethtool_ops;
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u64 sset_mask;
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int i, idx = 0, n_bits = 0, ret, rc;
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u32 *info_buf = NULL;
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if (!ops->get_sset_count)
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return -EOPNOTSUPP;
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if (copy_from_user(&info, useraddr, sizeof(info)))
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return -EFAULT;
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/* store copy of mask, because we zero struct later on */
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sset_mask = info.sset_mask;
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if (!sset_mask)
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return 0;
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/* calculate size of return buffer */
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n_bits = hweight64(sset_mask);
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memset(&info, 0, sizeof(info));
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info.cmd = ETHTOOL_GSSET_INFO;
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info_buf = kzalloc(n_bits * sizeof(u32), GFP_USER);
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if (!info_buf)
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return -ENOMEM;
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/*
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* fill return buffer based on input bitmask and successful
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* get_sset_count return
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*/
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for (i = 0; i < 64; i++) {
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if (!(sset_mask & (1ULL << i)))
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continue;
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rc = ops->get_sset_count(dev, i);
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if (rc >= 0) {
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info.sset_mask |= (1ULL << i);
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info_buf[idx++] = rc;
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}
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}
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ret = -EFAULT;
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if (copy_to_user(useraddr, &info, sizeof(info)))
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goto out;
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useraddr += offsetof(struct ethtool_sset_info, data);
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if (copy_to_user(useraddr, info_buf, idx * sizeof(u32)))
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goto out;
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ret = 0;
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out:
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kfree(info_buf);
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return ret;
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}
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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;
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size_t info_size = sizeof(info);
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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
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* ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
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* members. User-space might still be using that
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* definition. */
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if (cmd == ETHTOOL_SRXFH)
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info_size = (offsetof(struct ethtool_rxnfc, data) +
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sizeof(info.data));
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if (copy_from_user(&info, useraddr, info_size))
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return -EFAULT;
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return dev->ethtool_ops->set_rxnfc(dev, &info);
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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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{
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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;
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int ret;
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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
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* ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
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* members. User-space might still be using that
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* definition. */
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if (cmd == ETHTOOL_GRXFH)
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info_size = (offsetof(struct ethtool_rxnfc, data) +
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sizeof(info.data));
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if (copy_from_user(&info, useraddr, info_size))
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return -EFAULT;
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if (info.cmd == ETHTOOL_GRXCLSRLALL) {
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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)
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return -ENOMEM;
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}
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}
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ret = ops->get_rxnfc(dev, &info, rule_buf);
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if (ret < 0)
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goto err_out;
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ret = -EFAULT;
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if (copy_to_user(useraddr, &info, info_size))
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goto err_out;
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if (rule_buf) {
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useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
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if (copy_to_user(useraddr, rule_buf,
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info.rule_cnt * sizeof(u32)))
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goto err_out;
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}
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ret = 0;
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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,
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void __user *useraddr)
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{
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struct ethtool_rxfh_indir *indir;
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u32 table_size;
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size_t full_size;
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int ret;
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if (!dev->ethtool_ops->get_rxfh_indir)
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return -EOPNOTSUPP;
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if (copy_from_user(&table_size,
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useraddr + offsetof(struct ethtool_rxfh_indir, size),
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sizeof(table_size)))
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return -EFAULT;
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if (table_size >
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(KMALLOC_MAX_SIZE - sizeof(*indir)) / sizeof(*indir->ring_index))
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return -ENOMEM;
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full_size = sizeof(*indir) + sizeof(*indir->ring_index) * table_size;
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indir = kzalloc(full_size, GFP_USER);
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if (!indir)
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return -ENOMEM;
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indir->cmd = ETHTOOL_GRXFHINDIR;
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indir->size = table_size;
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ret = dev->ethtool_ops->get_rxfh_indir(dev, indir);
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if (ret)
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goto out;
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if (copy_to_user(useraddr, indir, full_size))
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ret = -EFAULT;
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out:
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kfree(indir);
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return ret;
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}
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static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
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void __user *useraddr)
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{
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struct ethtool_rxfh_indir *indir;
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u32 table_size;
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size_t full_size;
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int ret;
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if (!dev->ethtool_ops->set_rxfh_indir)
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return -EOPNOTSUPP;
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|
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if (copy_from_user(&table_size,
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useraddr + offsetof(struct ethtool_rxfh_indir, size),
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sizeof(table_size)))
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return -EFAULT;
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|
|
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if (table_size >
|
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(KMALLOC_MAX_SIZE - sizeof(*indir)) / sizeof(*indir->ring_index))
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return -ENOMEM;
|
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full_size = sizeof(*indir) + sizeof(*indir->ring_index) * table_size;
|
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indir = kmalloc(full_size, GFP_USER);
|
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if (!indir)
|
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return -ENOMEM;
|
|
|
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if (copy_from_user(indir, useraddr, full_size)) {
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ret = -EFAULT;
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goto out;
|
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}
|
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|
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ret = dev->ethtool_ops->set_rxfh_indir(dev, indir);
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|
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out:
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kfree(indir);
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return ret;
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}
|
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|
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static void __rx_ntuple_filter_add(struct ethtool_rx_ntuple_list *list,
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struct ethtool_rx_ntuple_flow_spec *spec,
|
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struct ethtool_rx_ntuple_flow_spec_container *fsc)
|
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{
|
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|
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/* don't add filters forever */
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if (list->count >= ETHTOOL_MAX_NTUPLE_LIST_ENTRY) {
|
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/* free the container */
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kfree(fsc);
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return;
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}
|
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|
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/* Copy the whole filter over */
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fsc->fs.flow_type = spec->flow_type;
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memcpy(&fsc->fs.h_u, &spec->h_u, sizeof(spec->h_u));
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memcpy(&fsc->fs.m_u, &spec->m_u, sizeof(spec->m_u));
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|
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fsc->fs.vlan_tag = spec->vlan_tag;
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fsc->fs.vlan_tag_mask = spec->vlan_tag_mask;
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fsc->fs.data = spec->data;
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fsc->fs.data_mask = spec->data_mask;
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fsc->fs.action = spec->action;
|
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|
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/* add to the list */
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list_add_tail_rcu(&fsc->list, &list->list);
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list->count++;
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}
|
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|
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/*
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* ethtool does not (or did not) set masks for flow parameters that are
|
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* not specified, so if both value and mask are 0 then this must be
|
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* treated as equivalent to a mask with all bits set. Implement that
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* here rather than in drivers.
|
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*/
|
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static void rx_ntuple_fix_masks(struct ethtool_rx_ntuple_flow_spec *fs)
|
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{
|
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struct ethtool_tcpip4_spec *entry = &fs->h_u.tcp_ip4_spec;
|
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struct ethtool_tcpip4_spec *mask = &fs->m_u.tcp_ip4_spec;
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|
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if (fs->flow_type != TCP_V4_FLOW &&
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fs->flow_type != UDP_V4_FLOW &&
|
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fs->flow_type != SCTP_V4_FLOW)
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return;
|
|
|
|
if (!(entry->ip4src | mask->ip4src))
|
|
mask->ip4src = htonl(0xffffffff);
|
|
if (!(entry->ip4dst | mask->ip4dst))
|
|
mask->ip4dst = htonl(0xffffffff);
|
|
if (!(entry->psrc | mask->psrc))
|
|
mask->psrc = htons(0xffff);
|
|
if (!(entry->pdst | mask->pdst))
|
|
mask->pdst = htons(0xffff);
|
|
if (!(entry->tos | mask->tos))
|
|
mask->tos = 0xff;
|
|
if (!(fs->vlan_tag | fs->vlan_tag_mask))
|
|
fs->vlan_tag_mask = 0xffff;
|
|
if (!(fs->data | fs->data_mask))
|
|
fs->data_mask = 0xffffffffffffffffULL;
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_set_rx_ntuple(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
struct ethtool_rx_ntuple cmd;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
struct ethtool_rx_ntuple_flow_spec_container *fsc = NULL;
|
|
int ret;
|
|
|
|
if (!(dev->features & NETIF_F_NTUPLE))
|
|
return -EINVAL;
|
|
|
|
if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
|
|
return -EFAULT;
|
|
|
|
rx_ntuple_fix_masks(&cmd.fs);
|
|
|
|
/*
|
|
* Cache filter in dev struct for GET operation only if
|
|
* the underlying driver doesn't have its own GET operation, and
|
|
* only if the filter was added successfully. First make sure we
|
|
* can allocate the filter, then continue if successful.
|
|
*/
|
|
if (!ops->get_rx_ntuple) {
|
|
fsc = kmalloc(sizeof(*fsc), GFP_ATOMIC);
|
|
if (!fsc)
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = ops->set_rx_ntuple(dev, &cmd);
|
|
if (ret) {
|
|
kfree(fsc);
|
|
return ret;
|
|
}
|
|
|
|
if (!ops->get_rx_ntuple)
|
|
__rx_ntuple_filter_add(&dev->ethtool_ntuple_list, &cmd.fs, fsc);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_get_rx_ntuple(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_gstrings gstrings;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
struct ethtool_rx_ntuple_flow_spec_container *fsc;
|
|
u8 *data;
|
|
char *p;
|
|
int ret, i, num_strings = 0;
|
|
|
|
if (!ops->get_sset_count)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
|
|
return -EFAULT;
|
|
|
|
ret = ops->get_sset_count(dev, gstrings.string_set);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
gstrings.len = ret;
|
|
|
|
data = kzalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
if (ops->get_rx_ntuple) {
|
|
/* driver-specific filter grab */
|
|
ret = ops->get_rx_ntuple(dev, gstrings.string_set, data);
|
|
goto copy;
|
|
}
|
|
|
|
/* default ethtool filter grab */
|
|
i = 0;
|
|
p = (char *)data;
|
|
list_for_each_entry(fsc, &dev->ethtool_ntuple_list.list, list) {
|
|
sprintf(p, "Filter %d:\n", i);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
|
|
switch (fsc->fs.flow_type) {
|
|
case TCP_V4_FLOW:
|
|
sprintf(p, "\tFlow Type: TCP\n");
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
break;
|
|
case UDP_V4_FLOW:
|
|
sprintf(p, "\tFlow Type: UDP\n");
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
break;
|
|
case SCTP_V4_FLOW:
|
|
sprintf(p, "\tFlow Type: SCTP\n");
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
break;
|
|
case AH_ESP_V4_FLOW:
|
|
sprintf(p, "\tFlow Type: AH ESP\n");
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
break;
|
|
case ESP_V4_FLOW:
|
|
sprintf(p, "\tFlow Type: ESP\n");
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
break;
|
|
case IP_USER_FLOW:
|
|
sprintf(p, "\tFlow Type: Raw IP\n");
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
break;
|
|
case IPV4_FLOW:
|
|
sprintf(p, "\tFlow Type: IPv4\n");
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
break;
|
|
default:
|
|
sprintf(p, "\tFlow Type: Unknown\n");
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
goto unknown_filter;
|
|
}
|
|
|
|
/* now the rest of the filters */
|
|
switch (fsc->fs.flow_type) {
|
|
case TCP_V4_FLOW:
|
|
case UDP_V4_FLOW:
|
|
case SCTP_V4_FLOW:
|
|
sprintf(p, "\tSrc IP addr: 0x%x\n",
|
|
fsc->fs.h_u.tcp_ip4_spec.ip4src);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tSrc IP mask: 0x%x\n",
|
|
fsc->fs.m_u.tcp_ip4_spec.ip4src);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tDest IP addr: 0x%x\n",
|
|
fsc->fs.h_u.tcp_ip4_spec.ip4dst);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tDest IP mask: 0x%x\n",
|
|
fsc->fs.m_u.tcp_ip4_spec.ip4dst);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tSrc Port: %d, mask: 0x%x\n",
|
|
fsc->fs.h_u.tcp_ip4_spec.psrc,
|
|
fsc->fs.m_u.tcp_ip4_spec.psrc);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tDest Port: %d, mask: 0x%x\n",
|
|
fsc->fs.h_u.tcp_ip4_spec.pdst,
|
|
fsc->fs.m_u.tcp_ip4_spec.pdst);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tTOS: %d, mask: 0x%x\n",
|
|
fsc->fs.h_u.tcp_ip4_spec.tos,
|
|
fsc->fs.m_u.tcp_ip4_spec.tos);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
break;
|
|
case AH_ESP_V4_FLOW:
|
|
case ESP_V4_FLOW:
|
|
sprintf(p, "\tSrc IP addr: 0x%x\n",
|
|
fsc->fs.h_u.ah_ip4_spec.ip4src);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tSrc IP mask: 0x%x\n",
|
|
fsc->fs.m_u.ah_ip4_spec.ip4src);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tDest IP addr: 0x%x\n",
|
|
fsc->fs.h_u.ah_ip4_spec.ip4dst);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tDest IP mask: 0x%x\n",
|
|
fsc->fs.m_u.ah_ip4_spec.ip4dst);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tSPI: %d, mask: 0x%x\n",
|
|
fsc->fs.h_u.ah_ip4_spec.spi,
|
|
fsc->fs.m_u.ah_ip4_spec.spi);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tTOS: %d, mask: 0x%x\n",
|
|
fsc->fs.h_u.ah_ip4_spec.tos,
|
|
fsc->fs.m_u.ah_ip4_spec.tos);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
break;
|
|
case IP_USER_FLOW:
|
|
sprintf(p, "\tSrc IP addr: 0x%x\n",
|
|
fsc->fs.h_u.usr_ip4_spec.ip4src);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tSrc IP mask: 0x%x\n",
|
|
fsc->fs.m_u.usr_ip4_spec.ip4src);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tDest IP addr: 0x%x\n",
|
|
fsc->fs.h_u.usr_ip4_spec.ip4dst);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tDest IP mask: 0x%x\n",
|
|
fsc->fs.m_u.usr_ip4_spec.ip4dst);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
break;
|
|
case IPV4_FLOW:
|
|
sprintf(p, "\tSrc IP addr: 0x%x\n",
|
|
fsc->fs.h_u.usr_ip4_spec.ip4src);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tSrc IP mask: 0x%x\n",
|
|
fsc->fs.m_u.usr_ip4_spec.ip4src);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tDest IP addr: 0x%x\n",
|
|
fsc->fs.h_u.usr_ip4_spec.ip4dst);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tDest IP mask: 0x%x\n",
|
|
fsc->fs.m_u.usr_ip4_spec.ip4dst);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tL4 bytes: 0x%x, mask: 0x%x\n",
|
|
fsc->fs.h_u.usr_ip4_spec.l4_4_bytes,
|
|
fsc->fs.m_u.usr_ip4_spec.l4_4_bytes);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tTOS: %d, mask: 0x%x\n",
|
|
fsc->fs.h_u.usr_ip4_spec.tos,
|
|
fsc->fs.m_u.usr_ip4_spec.tos);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tIP Version: %d, mask: 0x%x\n",
|
|
fsc->fs.h_u.usr_ip4_spec.ip_ver,
|
|
fsc->fs.m_u.usr_ip4_spec.ip_ver);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tProtocol: %d, mask: 0x%x\n",
|
|
fsc->fs.h_u.usr_ip4_spec.proto,
|
|
fsc->fs.m_u.usr_ip4_spec.proto);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
break;
|
|
}
|
|
sprintf(p, "\tVLAN: %d, mask: 0x%x\n",
|
|
fsc->fs.vlan_tag, fsc->fs.vlan_tag_mask);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tUser-defined: 0x%Lx\n", fsc->fs.data);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
sprintf(p, "\tUser-defined mask: 0x%Lx\n", fsc->fs.data_mask);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
if (fsc->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP)
|
|
sprintf(p, "\tAction: Drop\n");
|
|
else
|
|
sprintf(p, "\tAction: Direct to queue %d\n",
|
|
fsc->fs.action);
|
|
p += ETH_GSTRING_LEN;
|
|
num_strings++;
|
|
unknown_filter:
|
|
i++;
|
|
}
|
|
copy:
|
|
/* indicate to userspace how many strings we actually have */
|
|
gstrings.len = num_strings;
|
|
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;
|
|
|
|
out:
|
|
kfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_regs regs;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
void *regbuf;
|
|
int reglen, ret;
|
|
|
|
if (!ops->get_regs || !ops->get_regs_len)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(®s, useraddr, sizeof(regs)))
|
|
return -EFAULT;
|
|
|
|
reglen = ops->get_regs_len(dev);
|
|
if (regs.len > reglen)
|
|
regs.len = reglen;
|
|
|
|
regbuf = vzalloc(reglen);
|
|
if (!regbuf)
|
|
return -ENOMEM;
|
|
|
|
ops->get_regs(dev, ®s, regbuf);
|
|
|
|
ret = -EFAULT;
|
|
if (copy_to_user(useraddr, ®s, sizeof(regs)))
|
|
goto out;
|
|
useraddr += offsetof(struct ethtool_regs, data);
|
|
if (copy_to_user(useraddr, regbuf, regs.len))
|
|
goto out;
|
|
ret = 0;
|
|
|
|
out:
|
|
vfree(regbuf);
|
|
return ret;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
|
|
|
|
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);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_eeprom eeprom;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
void __user *userbuf = useraddr + sizeof(eeprom);
|
|
u32 bytes_remaining;
|
|
u8 *data;
|
|
int ret = 0;
|
|
|
|
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;
|
|
|
|
data = kmalloc(PAGE_SIZE, GFP_USER);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
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;
|
|
}
|
|
|
|
eeprom.len = userbuf - (useraddr + sizeof(eeprom));
|
|
eeprom.offset -= eeprom.len;
|
|
if (copy_to_user(useraddr, &eeprom, sizeof(eeprom)))
|
|
ret = -EFAULT;
|
|
|
|
kfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_eeprom eeprom;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
void __user *userbuf = useraddr + sizeof(eeprom);
|
|
u32 bytes_remaining;
|
|
u8 *data;
|
|
int ret = 0;
|
|
|
|
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;
|
|
|
|
data = kmalloc(PAGE_SIZE, GFP_USER);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
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;
|
|
}
|
|
|
|
kfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_get_coalesce(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
|
|
|
|
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;
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_set_coalesce(struct net_device *dev,
|
|
void __user *useraddr)
|
|
{
|
|
struct ethtool_coalesce coalesce;
|
|
|
|
if (!dev->ethtool_ops->set_coalesce)
|
|
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)
|
|
{
|
|
struct ethtool_ringparam ringparam = { .cmd = ETHTOOL_GRINGPARAM };
|
|
|
|
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);
|
|
}
|
|
|
|
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;
|
|
|
|
if (!dev->ethtool_ops->set_pauseparam)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam)))
|
|
return -EFAULT;
|
|
|
|
return dev->ethtool_ops->set_pauseparam(dev, &pauseparam);
|
|
}
|
|
|
|
static int __ethtool_set_sg(struct net_device *dev, u32 data)
|
|
{
|
|
int err;
|
|
|
|
if (!data && dev->ethtool_ops->set_tso) {
|
|
err = dev->ethtool_ops->set_tso(dev, 0);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (!data && dev->ethtool_ops->set_ufo) {
|
|
err = dev->ethtool_ops->set_ufo(dev, 0);
|
|
if (err)
|
|
return err;
|
|
}
|
|
return dev->ethtool_ops->set_sg(dev, data);
|
|
}
|
|
|
|
static int ethtool_set_tx_csum(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_value edata;
|
|
int err;
|
|
|
|
if (!dev->ethtool_ops->set_tx_csum)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&edata, useraddr, sizeof(edata)))
|
|
return -EFAULT;
|
|
|
|
if (!edata.data && dev->ethtool_ops->set_sg) {
|
|
err = __ethtool_set_sg(dev, 0);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
return dev->ethtool_ops->set_tx_csum(dev, edata.data);
|
|
}
|
|
EXPORT_SYMBOL(ethtool_op_set_tx_csum);
|
|
|
|
static int ethtool_set_rx_csum(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_value edata;
|
|
|
|
if (!dev->ethtool_ops->set_rx_csum)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&edata, useraddr, sizeof(edata)))
|
|
return -EFAULT;
|
|
|
|
if (!edata.data && dev->ethtool_ops->set_sg)
|
|
dev->features &= ~NETIF_F_GRO;
|
|
|
|
return dev->ethtool_ops->set_rx_csum(dev, edata.data);
|
|
}
|
|
|
|
static int ethtool_set_sg(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_value edata;
|
|
|
|
if (!dev->ethtool_ops->set_sg)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&edata, useraddr, sizeof(edata)))
|
|
return -EFAULT;
|
|
|
|
if (edata.data &&
|
|
!(dev->features & NETIF_F_ALL_CSUM))
|
|
return -EINVAL;
|
|
|
|
return __ethtool_set_sg(dev, edata.data);
|
|
}
|
|
|
|
static int ethtool_set_tso(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_value edata;
|
|
|
|
if (!dev->ethtool_ops->set_tso)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&edata, useraddr, sizeof(edata)))
|
|
return -EFAULT;
|
|
|
|
if (edata.data && !(dev->features & NETIF_F_SG))
|
|
return -EINVAL;
|
|
|
|
return dev->ethtool_ops->set_tso(dev, edata.data);
|
|
}
|
|
|
|
static int ethtool_set_ufo(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_value edata;
|
|
|
|
if (!dev->ethtool_ops->set_ufo)
|
|
return -EOPNOTSUPP;
|
|
if (copy_from_user(&edata, useraddr, sizeof(edata)))
|
|
return -EFAULT;
|
|
if (edata.data && !(dev->features & NETIF_F_SG))
|
|
return -EINVAL;
|
|
if (edata.data && !((dev->features & NETIF_F_GEN_CSUM) ||
|
|
(dev->features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))
|
|
== (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM)))
|
|
return -EINVAL;
|
|
return dev->ethtool_ops->set_ufo(dev, edata.data);
|
|
}
|
|
|
|
static int ethtool_get_gso(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_value edata = { ETHTOOL_GGSO };
|
|
|
|
edata.data = dev->features & NETIF_F_GSO;
|
|
if (copy_to_user(useraddr, &edata, sizeof(edata)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_set_gso(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_value edata;
|
|
|
|
if (copy_from_user(&edata, useraddr, sizeof(edata)))
|
|
return -EFAULT;
|
|
if (edata.data)
|
|
dev->features |= NETIF_F_GSO;
|
|
else
|
|
dev->features &= ~NETIF_F_GSO;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_get_gro(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_value edata = { ETHTOOL_GGRO };
|
|
|
|
edata.data = dev->features & NETIF_F_GRO;
|
|
if (copy_to_user(useraddr, &edata, sizeof(edata)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_set_gro(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_value edata;
|
|
|
|
if (copy_from_user(&edata, useraddr, sizeof(edata)))
|
|
return -EFAULT;
|
|
|
|
if (edata.data) {
|
|
u32 rxcsum = dev->ethtool_ops->get_rx_csum ?
|
|
dev->ethtool_ops->get_rx_csum(dev) :
|
|
ethtool_op_get_rx_csum(dev);
|
|
|
|
if (!rxcsum)
|
|
return -EINVAL;
|
|
dev->features |= NETIF_F_GRO;
|
|
} else
|
|
dev->features &= ~NETIF_F_GRO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
|
|
{
|
|
struct ethtool_test test;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
u64 *data;
|
|
int ret, test_len;
|
|
|
|
if (!ops->self_test || !ops->get_sset_count)
|
|
return -EOPNOTSUPP;
|
|
|
|
test_len = ops->get_sset_count(dev, ETH_SS_TEST);
|
|
if (test_len < 0)
|
|
return test_len;
|
|
WARN_ON(test_len == 0);
|
|
|
|
if (copy_from_user(&test, useraddr, sizeof(test)))
|
|
return -EFAULT;
|
|
|
|
test.len = test_len;
|
|
data = kmalloc(test_len * sizeof(u64), GFP_USER);
|
|
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;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
u8 *data;
|
|
int ret;
|
|
|
|
if (!ops->get_strings || !ops->get_sset_count)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
|
|
return -EFAULT;
|
|
|
|
ret = ops->get_sset_count(dev, gstrings.string_set);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
gstrings.len = ret;
|
|
|
|
data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
ops->get_strings(dev, gstrings.string_set, data);
|
|
|
|
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;
|
|
|
|
out:
|
|
kfree(data);
|
|
return ret;
|
|
}
|
|
|
|
static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_value id;
|
|
|
|
if (!dev->ethtool_ops->phys_id)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&id, useraddr, sizeof(id)))
|
|
return -EFAULT;
|
|
|
|
return dev->ethtool_ops->phys_id(dev, id.data);
|
|
}
|
|
|
|
static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_stats stats;
|
|
const struct ethtool_ops *ops = dev->ethtool_ops;
|
|
u64 *data;
|
|
int ret, n_stats;
|
|
|
|
if (!ops->get_ethtool_stats || !ops->get_sset_count)
|
|
return -EOPNOTSUPP;
|
|
|
|
n_stats = ops->get_sset_count(dev, ETH_SS_STATS);
|
|
if (n_stats < 0)
|
|
return n_stats;
|
|
WARN_ON(n_stats == 0);
|
|
|
|
if (copy_from_user(&stats, useraddr, sizeof(stats)))
|
|
return -EFAULT;
|
|
|
|
stats.n_stats = n_stats;
|
|
data = kmalloc(n_stats * sizeof(u64), GFP_USER);
|
|
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;
|
|
}
|
|
|
|
static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
|
|
{
|
|
struct ethtool_perm_addr epaddr;
|
|
|
|
if (copy_from_user(&epaddr, useraddr, sizeof(epaddr)))
|
|
return -EFAULT;
|
|
|
|
if (epaddr.size < dev->addr_len)
|
|
return -ETOOSMALL;
|
|
epaddr.size = dev->addr_len;
|
|
|
|
if (copy_to_user(useraddr, &epaddr, sizeof(epaddr)))
|
|
return -EFAULT;
|
|
useraddr += sizeof(epaddr);
|
|
if (copy_to_user(useraddr, dev->perm_addr, epaddr.size))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_get_value(struct net_device *dev, char __user *useraddr,
|
|
u32 cmd, u32 (*actor)(struct net_device *))
|
|
{
|
|
struct ethtool_value edata = { .cmd = cmd };
|
|
|
|
if (!actor)
|
|
return -EOPNOTSUPP;
|
|
|
|
edata.data = actor(dev);
|
|
|
|
if (copy_to_user(useraddr, &edata, sizeof(edata)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_set_value_void(struct net_device *dev, char __user *useraddr,
|
|
void (*actor)(struct net_device *, u32))
|
|
{
|
|
struct ethtool_value edata;
|
|
|
|
if (!actor)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&edata, useraddr, sizeof(edata)))
|
|
return -EFAULT;
|
|
|
|
actor(dev, edata.data);
|
|
return 0;
|
|
}
|
|
|
|
static int ethtool_set_value(struct net_device *dev, char __user *useraddr,
|
|
int (*actor)(struct net_device *, u32))
|
|
{
|
|
struct ethtool_value edata;
|
|
|
|
if (!actor)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (copy_from_user(&edata, useraddr, sizeof(edata)))
|
|
return -EFAULT;
|
|
|
|
return actor(dev, edata.data);
|
|
}
|
|
|
|
static noinline_for_stack int ethtool_flash_device(struct net_device *dev,
|
|
char __user *useraddr)
|
|
{
|
|
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);
|
|
}
|
|
|
|
/* The main entry point in this file. Called from net/core/dev.c */
|
|
|
|
int dev_ethtool(struct net *net, struct ifreq *ifr)
|
|
{
|
|
struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
|
|
void __user *useraddr = ifr->ifr_data;
|
|
u32 ethcmd;
|
|
int rc;
|
|
unsigned long old_features;
|
|
|
|
if (!dev || !netif_device_present(dev))
|
|
return -ENODEV;
|
|
|
|
if (copy_from_user(ðcmd, useraddr, sizeof(ethcmd)))
|
|
return -EFAULT;
|
|
|
|
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;
|
|
}
|
|
|
|
/* Allow some commands to be done by anyone */
|
|
switch (ethcmd) {
|
|
case ETHTOOL_GSET:
|
|
case ETHTOOL_GDRVINFO:
|
|
case ETHTOOL_GMSGLVL:
|
|
case ETHTOOL_GCOALESCE:
|
|
case ETHTOOL_GRINGPARAM:
|
|
case ETHTOOL_GPAUSEPARAM:
|
|
case ETHTOOL_GRXCSUM:
|
|
case ETHTOOL_GTXCSUM:
|
|
case ETHTOOL_GSG:
|
|
case ETHTOOL_GSTRINGS:
|
|
case ETHTOOL_GTSO:
|
|
case ETHTOOL_GPERMADDR:
|
|
case ETHTOOL_GUFO:
|
|
case ETHTOOL_GGSO:
|
|
case ETHTOOL_GGRO:
|
|
case ETHTOOL_GFLAGS:
|
|
case ETHTOOL_GPFLAGS:
|
|
case ETHTOOL_GRXFH:
|
|
case ETHTOOL_GRXRINGS:
|
|
case ETHTOOL_GRXCLSRLCNT:
|
|
case ETHTOOL_GRXCLSRULE:
|
|
case ETHTOOL_GRXCLSRLALL:
|
|
break;
|
|
default:
|
|
if (!capable(CAP_NET_ADMIN))
|
|
return -EPERM;
|
|
}
|
|
|
|
if (dev->ethtool_ops->begin) {
|
|
rc = dev->ethtool_ops->begin(dev);
|
|
if (rc < 0)
|
|
return rc;
|
|
}
|
|
old_features = dev->features;
|
|
|
|
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:
|
|
rc = ethtool_get_value(dev, useraddr, ethcmd,
|
|
dev->ethtool_ops->get_msglevel);
|
|
break;
|
|
case ETHTOOL_SMSGLVL:
|
|
rc = ethtool_set_value_void(dev, useraddr,
|
|
dev->ethtool_ops->set_msglevel);
|
|
break;
|
|
case ETHTOOL_NWAY_RST:
|
|
rc = ethtool_nway_reset(dev);
|
|
break;
|
|
case ETHTOOL_GLINK:
|
|
rc = ethtool_get_link(dev, useraddr);
|
|
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_GRXCSUM:
|
|
rc = ethtool_get_value(dev, useraddr, ethcmd,
|
|
(dev->ethtool_ops->get_rx_csum ?
|
|
dev->ethtool_ops->get_rx_csum :
|
|
ethtool_op_get_rx_csum));
|
|
break;
|
|
case ETHTOOL_SRXCSUM:
|
|
rc = ethtool_set_rx_csum(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GTXCSUM:
|
|
rc = ethtool_get_value(dev, useraddr, ethcmd,
|
|
(dev->ethtool_ops->get_tx_csum ?
|
|
dev->ethtool_ops->get_tx_csum :
|
|
ethtool_op_get_tx_csum));
|
|
break;
|
|
case ETHTOOL_STXCSUM:
|
|
rc = ethtool_set_tx_csum(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GSG:
|
|
rc = ethtool_get_value(dev, useraddr, ethcmd,
|
|
(dev->ethtool_ops->get_sg ?
|
|
dev->ethtool_ops->get_sg :
|
|
ethtool_op_get_sg));
|
|
break;
|
|
case ETHTOOL_SSG:
|
|
rc = ethtool_set_sg(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GTSO:
|
|
rc = ethtool_get_value(dev, useraddr, ethcmd,
|
|
(dev->ethtool_ops->get_tso ?
|
|
dev->ethtool_ops->get_tso :
|
|
ethtool_op_get_tso));
|
|
break;
|
|
case ETHTOOL_STSO:
|
|
rc = ethtool_set_tso(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;
|
|
case ETHTOOL_GPERMADDR:
|
|
rc = ethtool_get_perm_addr(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GUFO:
|
|
rc = ethtool_get_value(dev, useraddr, ethcmd,
|
|
(dev->ethtool_ops->get_ufo ?
|
|
dev->ethtool_ops->get_ufo :
|
|
ethtool_op_get_ufo));
|
|
break;
|
|
case ETHTOOL_SUFO:
|
|
rc = ethtool_set_ufo(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GGSO:
|
|
rc = ethtool_get_gso(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SGSO:
|
|
rc = ethtool_set_gso(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GFLAGS:
|
|
rc = ethtool_get_value(dev, useraddr, ethcmd,
|
|
(dev->ethtool_ops->get_flags ?
|
|
dev->ethtool_ops->get_flags :
|
|
ethtool_op_get_flags));
|
|
break;
|
|
case ETHTOOL_SFLAGS:
|
|
rc = ethtool_set_value(dev, useraddr,
|
|
dev->ethtool_ops->set_flags);
|
|
break;
|
|
case ETHTOOL_GPFLAGS:
|
|
rc = ethtool_get_value(dev, useraddr, ethcmd,
|
|
dev->ethtool_ops->get_priv_flags);
|
|
break;
|
|
case ETHTOOL_SPFLAGS:
|
|
rc = ethtool_set_value(dev, useraddr,
|
|
dev->ethtool_ops->set_priv_flags);
|
|
break;
|
|
case ETHTOOL_GRXFH:
|
|
case ETHTOOL_GRXRINGS:
|
|
case ETHTOOL_GRXCLSRLCNT:
|
|
case ETHTOOL_GRXCLSRULE:
|
|
case ETHTOOL_GRXCLSRLALL:
|
|
rc = ethtool_get_rxnfc(dev, ethcmd, useraddr);
|
|
break;
|
|
case ETHTOOL_SRXFH:
|
|
case ETHTOOL_SRXCLSRLDEL:
|
|
case ETHTOOL_SRXCLSRLINS:
|
|
rc = ethtool_set_rxnfc(dev, ethcmd, useraddr);
|
|
break;
|
|
case ETHTOOL_GGRO:
|
|
rc = ethtool_get_gro(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SGRO:
|
|
rc = ethtool_set_gro(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_FLASHDEV:
|
|
rc = ethtool_flash_device(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_RESET:
|
|
rc = ethtool_reset(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SRXNTUPLE:
|
|
rc = ethtool_set_rx_ntuple(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GRXNTUPLE:
|
|
rc = ethtool_get_rx_ntuple(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GSSET_INFO:
|
|
rc = ethtool_get_sset_info(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_GRXFHINDIR:
|
|
rc = ethtool_get_rxfh_indir(dev, useraddr);
|
|
break;
|
|
case ETHTOOL_SRXFHINDIR:
|
|
rc = ethtool_set_rxfh_indir(dev, useraddr);
|
|
break;
|
|
default:
|
|
rc = -EOPNOTSUPP;
|
|
}
|
|
|
|
if (dev->ethtool_ops->complete)
|
|
dev->ethtool_ops->complete(dev);
|
|
|
|
if (old_features != dev->features)
|
|
netdev_features_change(dev);
|
|
|
|
return rc;
|
|
}
|