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-rw-r--r--net/core/ethtool.c24
1 files changed, 16 insertions, 8 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 4a593853cbf2..4d1011b2e24f 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 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
* the information ethtool needs.
- *
- * 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.
*/
#include <linux/module.h>
@@ -1359,13 +1355,16 @@ static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
if (!regbuf)
return -ENOMEM;
+ if (regs.len < reglen)
+ reglen = regs.len;
+
ops->get_regs(dev, &regs, regbuf);
ret = -EFAULT;
if (copy_to_user(useraddr, &regs, sizeof(regs)))
goto out;
useraddr += offsetof(struct ethtool_regs, data);
- if (regbuf && copy_to_user(useraddr, regbuf, regs.len))
+ if (copy_to_user(useraddr, regbuf, reglen))
goto out;
ret = 0;
@@ -3010,21 +3009,30 @@ ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input)
const struct ethtool_flow_ext *ext_h_spec = &fs->h_ext;
const struct ethtool_flow_ext *ext_m_spec = &fs->m_ext;
- if (ext_m_spec->vlan_etype &&
- ext_m_spec->vlan_tci) {
+ if (ext_m_spec->vlan_etype) {
match->key.vlan.vlan_tpid = ext_h_spec->vlan_etype;
match->mask.vlan.vlan_tpid = ext_m_spec->vlan_etype;
+ }
+ if (ext_m_spec->vlan_tci) {
match->key.vlan.vlan_id =
ntohs(ext_h_spec->vlan_tci) & 0x0fff;
match->mask.vlan.vlan_id =
ntohs(ext_m_spec->vlan_tci) & 0x0fff;
+ match->key.vlan.vlan_dei =
+ !!(ext_h_spec->vlan_tci & htons(0x1000));
+ match->mask.vlan.vlan_dei =
+ !!(ext_m_spec->vlan_tci & htons(0x1000));
+
match->key.vlan.vlan_priority =
(ntohs(ext_h_spec->vlan_tci) & 0xe000) >> 13;
match->mask.vlan.vlan_priority =
(ntohs(ext_m_spec->vlan_tci) & 0xe000) >> 13;
+ }
+ if (ext_m_spec->vlan_etype ||
+ ext_m_spec->vlan_tci) {
match->dissector.used_keys |=
BIT(FLOW_DISSECTOR_KEY_VLAN);
match->dissector.offset[FLOW_DISSECTOR_KEY_VLAN] =