kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

rt2x00: fix monitor mode regression

Browse source 
Since commit df1404650c ("mac80211: remove support for IFF_PROMISC")
monitor mode for rt2x00 has been made effectively useless because the
hardware filter is configured to drop packets whose intended recipient is
not the device, regardless of the presence of monitor mode interfaces.

This patch fixes this regression by adding explicit monitor mode support,
and by configuring the hardware filter accordingly.

Signed-off-by: Eli Cooper <elicooper@gmx.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Eli Cooper 2016-01-18 19:30:19 +08:00 committed by Kalle Valo
parent e0045bf80f
commit 262c741e08
9 changed files with 23 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/net/wireless/ralink/rt2x00/rt2400pci.c
View file

@ -273,8 +273,10 @@ static void rt2400pci_config_filter(struct rt2x00_dev *rt2x00dev,
!(filter_flags & FIF_PLCPFAIL));
rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL,
!(filter_flags & FIF_CONTROL));
rt2x00_set_field32(&reg, RXCSR0_DROP_NOT_TO_ME, 1);
rt2x00_set_field32(&reg, RXCSR0_DROP_NOT_TO_ME,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags));
rt2x00_set_field32(&reg, RXCSR0_DROP_TODS,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags) &&
!rt2x00dev->intf_ap_count);
rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 1);
rt2x00mmio_register_write(rt2x00dev, RXCSR0, reg);

4
drivers/net/wireless/ralink/rt2x00/rt2500pci.c
View file

@ -274,8 +274,10 @@ static void rt2500pci_config_filter(struct rt2x00_dev *rt2x00dev,
!(filter_flags & FIF_PLCPFAIL));
rt2x00_set_field32(&reg, RXCSR0_DROP_CONTROL,
!(filter_flags & FIF_CONTROL));
rt2x00_set_field32(&reg, RXCSR0_DROP_NOT_TO_ME, 1);
rt2x00_set_field32(&reg, RXCSR0_DROP_NOT_TO_ME,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags));
rt2x00_set_field32(&reg, RXCSR0_DROP_TODS,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags) &&
!rt2x00dev->intf_ap_count);
rt2x00_set_field32(&reg, RXCSR0_DROP_VERSION_ERROR, 1);
rt2x00_set_field32(&reg, RXCSR0_DROP_MCAST,

4
drivers/net/wireless/ralink/rt2x00/rt2500usb.c
View file

@ -437,8 +437,10 @@ static void rt2500usb_config_filter(struct rt2x00_dev *rt2x00dev,
!(filter_flags & FIF_PLCPFAIL));
rt2x00_set_field16(&reg, TXRX_CSR2_DROP_CONTROL,
!(filter_flags & FIF_CONTROL));
rt2x00_set_field16(&reg, TXRX_CSR2_DROP_NOT_TO_ME, 1);
rt2x00_set_field16(&reg, TXRX_CSR2_DROP_NOT_TO_ME,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags));
rt2x00_set_field16(&reg, TXRX_CSR2_DROP_TODS,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags) &&
!rt2x00dev->intf_ap_count);
rt2x00_set_field16(&reg, TXRX_CSR2_DROP_VERSION_ERROR, 1);
rt2x00_set_field16(&reg, TXRX_CSR2_DROP_MULTICAST,

3
drivers/net/wireless/ralink/rt2x00/rt2800lib.c
View file

@ -1490,7 +1490,8 @@ void rt2800_config_filter(struct rt2x00_dev *rt2x00dev,
!(filter_flags & FIF_FCSFAIL));
rt2x00_set_field32(&reg, RX_FILTER_CFG_DROP_PHY_ERROR,
!(filter_flags & FIF_PLCPFAIL));
rt2x00_set_field32(&reg, RX_FILTER_CFG_DROP_NOT_TO_ME, 1);
rt2x00_set_field32(&reg, RX_FILTER_CFG_DROP_NOT_TO_ME,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags));
rt2x00_set_field32(&reg, RX_FILTER_CFG_DROP_NOT_MY_BSSD, 0);
rt2x00_set_field32(&reg, RX_FILTER_CFG_DROP_VER_ERROR, 1);
rt2x00_set_field32(&reg, RX_FILTER_CFG_DROP_MULTICAST,

1
drivers/net/wireless/ralink/rt2x00/rt2x00.h
View file

@ -669,6 +669,7 @@ enum rt2x00_state_flags {
CONFIG_POWERSAVING,
CONFIG_HT_DISABLED,
CONFIG_QOS_DISABLED,
CONFIG_MONITORING,
/*
* Mark we currently are sequentially reading TX_STA_FIFO register

5
drivers/net/wireless/ralink/rt2x00/rt2x00config.c
View file

@ -277,6 +277,11 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
else
clear_bit(CONFIG_POWERSAVING, &rt2x00dev->flags);
if (conf->flags & IEEE80211_CONF_MONITOR)
set_bit(CONFIG_MONITORING, &rt2x00dev->flags);
else
clear_bit(CONFIG_MONITORING, &rt2x00dev->flags);
rt2x00dev->curr_band = conf->chandef.chan->band;
rt2x00dev->curr_freq = conf->chandef.chan->center_freq;
rt2x00dev->tx_power = conf->power_level;

5
drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
View file

@ -385,11 +385,6 @@ void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
*total_flags |= FIF_PSPOLL;
}
/*
* Check if there is any work left for us.
*/
if (rt2x00dev->packet_filter == *total_flags)
return;
rt2x00dev->packet_filter = *total_flags;
rt2x00dev->ops->lib->config_filter(rt2x00dev, *total_flags);

4
drivers/net/wireless/ralink/rt2x00/rt61pci.c
View file

@ -530,8 +530,10 @@ static void rt61pci_config_filter(struct rt2x00_dev *rt2x00dev,
!(filter_flags & FIF_PLCPFAIL));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL,
!(filter_flags & (FIF_CONTROL | FIF_PSPOLL)));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_NOT_TO_ME, 1);
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_NOT_TO_ME,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags) &&
!rt2x00dev->intf_ap_count);
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 1);
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_MULTICAST,

4
drivers/net/wireless/ralink/rt2x00/rt73usb.c
View file

@ -480,8 +480,10 @@ static void rt73usb_config_filter(struct rt2x00_dev *rt2x00dev,
!(filter_flags & FIF_PLCPFAIL));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_CONTROL,
!(filter_flags & (FIF_CONTROL | FIF_PSPOLL)));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_NOT_TO_ME, 1);
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_NOT_TO_ME,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags));
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_TO_DS,
!test_bit(CONFIG_MONITORING, &rt2x00dev->flags) &&
!rt2x00dev->intf_ap_count);
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_VERSION_ERROR, 1);
rt2x00_set_field32(&reg, TXRX_CSR0_DROP_MULTICAST,