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mac80211: remove support for IFF_PROMISC

Browse source 
This support is essentially useless as typically networks are encrypted,
frames will be filtered by hardware, and rate scaling will be done with
the intended recipient in mind. For real monitoring of the network, the
monitor mode support should be used instead.

Removing it removes a lot of corner cases.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2015-04-22 14:40:58 +02:00
commit df1404650c
43 changed files with 63 additions and 204 deletions
Download patch file Download diff file Expand all files Collapse all files

7
drivers/net/wireless/adm8211.c
View file

@ -1353,12 +1353,7 @@ static void adm8211_configure_filter(struct ieee80211_hw *dev,
new_flags = 0;
if (*total_flags & FIF_PROMISC_IN_BSS) {
new_flags |= FIF_PROMISC_IN_BSS;
priv->nar |= ADM8211_NAR_PR;
priv->nar &= ~ADM8211_NAR_MM;
mc_filter[1] = mc_filter[0] = ~0;
} else if (*total_flags & FIF_ALLMULTI || multicast == ~(0ULL)) {
if (*total_flags & FIF_ALLMULTI || multicast == ~(0ULL)) {
new_flags |= FIF_ALLMULTI;
priv->nar &= ~ADM8211_NAR_PR;
priv->nar |= ADM8211_NAR_MM;

2
drivers/net/wireless/at76c50x-usb.h
View file

@ -447,7 +447,7 @@ struct at76_priv {
int mac80211_registered;
};
#define AT76_SUPPORTED_FILTERS FIF_PROMISC_IN_BSS
#define AT76_SUPPORTED_FILTERS 0
#define SCAN_POLL_INTERVAL (HZ / 4)

3
drivers/net/wireless/ath/ar5523/ar5523.c
View file

@ -1319,8 +1319,7 @@ out_unlock:
}
#define AR5523_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
FIF_ALLMULTI | \
#define AR5523_SUPPORTED_FILTERS (FIF_ALLMULTI | \
FIF_FCSFAIL | \
FIF_OTHER_BSS)

4
drivers/net/wireless/ath/ath10k/mac.c
View file

@ -773,7 +773,6 @@ static int ath10k_monitor_recalc(struct ath10k *ar)
lockdep_assert_held(&ar->conf_mutex);
should_start = ar->monitor ||
ar->filter_flags & FIF_PROMISC_IN_BSS ||
test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
ath10k_dbg(ar, ATH10K_DBG_MAC,
@ -3493,8 +3492,7 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
* FIXME: Has to be verified.
*/
#define SUPPORTED_FILTERS \
(FIF_PROMISC_IN_BSS | \
FIF_ALLMULTI | \
(FIF_ALLMULTI | \
FIF_CONTROL | \
FIF_PSPOLL | \
FIF_OTHER_BSS | \

1
drivers/net/wireless/ath/ath5k/ath5k.h
View file

@ -1280,7 +1280,6 @@ struct ath5k_hw {
DECLARE_BITMAP(status, 4);
#define ATH_STAT_INVALID 0 /* disable hardware accesses */
#define ATH_STAT_PROMISC 1
#define ATH_STAT_LEDSOFT 2 /* enable LED gpio status */
#define ATH_STAT_STARTED 3 /* opened & irqs enabled */
#define ATH_STAT_RESET 4 /* hw reset */

15
drivers/net/wireless/ath/ath5k/mac80211-ops.c
View file

@ -369,7 +369,7 @@ ath5k_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
unsigned int *new_flags, u64 multicast)
{
#define SUPPORTED_FIF_FLAGS \
(FIF_PROMISC_IN_BSS | FIF_ALLMULTI | FIF_FCSFAIL | \
(FIF_ALLMULTI | FIF_FCSFAIL | \
FIF_PLCPFAIL | FIF_CONTROL | FIF_OTHER_BSS | \
FIF_BCN_PRBRESP_PROMISC)
@ -393,16 +393,6 @@ ath5k_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
(AR5K_RX_FILTER_UCAST | AR5K_RX_FILTER_BCAST |
AR5K_RX_FILTER_MCAST);
if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) {
if (*new_flags & FIF_PROMISC_IN_BSS)
__set_bit(ATH_STAT_PROMISC, ah->status);
else
__clear_bit(ATH_STAT_PROMISC, ah->status);
}
if (test_bit(ATH_STAT_PROMISC, ah->status))
rfilt |= AR5K_RX_FILTER_PROM;
/* Note, AR5K_RX_FILTER_MCAST is already enabled */
if (*new_flags & FIF_ALLMULTI) {
mfilt[0] = ~0;
@ -418,8 +408,7 @@ ath5k_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
if ((*new_flags & FIF_BCN_PRBRESP_PROMISC) || (ah->nvifs > 1))
rfilt |= AR5K_RX_FILTER_BEACON;
/* FIF_CONTROL doc says that if FIF_PROMISC_IN_BSS is not
* set we should only pass on control frames for this
/* FIF_CONTROL doc says we should only pass on control frames for this
* station. This needs testing. I believe right now this
* enables *all* control frames, which is OK.. but
* but we should see if we can improve on granularity */

3
drivers/net/wireless/ath/ath9k/htc_drv_main.c
View file

@ -1238,8 +1238,7 @@ out:
}
#define SUPPORTED_FILTERS \
(FIF_PROMISC_IN_BSS | \
FIF_ALLMULTI | \
(FIF_ALLMULTI | \
FIF_CONTROL | \
FIF_PSPOLL | \
FIF_OTHER_BSS | \

9
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
View file

@ -872,14 +872,7 @@ u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv)
if (priv->rxfilter & FIF_PROBE_REQ)
rfilt |= ATH9K_RX_FILTER_PROBEREQ;
/*
* Set promiscuous mode when FIF_PROMISC_IN_BSS is enabled for station
* mode interface or when in monitor mode. AP mode does not need this
* since it receives all in-BSS frames anyway.
*/
if (((ah->opmode != NL80211_IFTYPE_AP) &&
(priv->rxfilter & FIF_PROMISC_IN_BSS)) ||
ah->is_monitoring)
if (ah->is_monitoring)
rfilt |= ATH9K_RX_FILTER_PROM;
if (priv->rxfilter & FIF_CONTROL)

3
drivers/net/wireless/ath/ath9k/main.c
View file

@ -1442,8 +1442,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
}
#define SUPPORTED_FILTERS \
(FIF_PROMISC_IN_BSS | \
FIF_ALLMULTI | \
(FIF_ALLMULTI | \
FIF_CONTROL | \
FIF_PSPOLL | \
FIF_OTHER_BSS | \

5
drivers/net/wireless/ath/ath9k/recv.c
View file

@ -392,11 +392,6 @@ u32 ath_calcrxfilter(struct ath_softc *sc)
if (sc->cur_chan->rxfilter & FIF_PROBE_REQ)
rfilt |= ATH9K_RX_FILTER_PROBEREQ;
/*
* Set promiscuous mode when FIF_PROMISC_IN_BSS is enabled for station
* mode interface or when in monitor mode. AP mode does not need this
* since it receives all in-BSS frames anyway.
*/
if (sc->sc_ah->is_monitoring)
rfilt |= ATH9K_RX_FILTER_PROM;

3
drivers/net/wireless/ath/carl9170/fw.c
View file

@ -310,8 +310,7 @@ static int carl9170_fw(struct ar9170 *ar, const __u8 *data, size_t len)
if (SUPP(CARL9170FW_RX_FILTER)) {
ar->fw.rx_filter = true;
ar->rx_filter_caps = FIF_FCSFAIL | FIF_PLCPFAIL |
FIF_CONTROL | FIF_PSPOLL | FIF_OTHER_BSS |
FIF_PROMISC_IN_BSS;
FIF_CONTROL | FIF_PSPOLL | FIF_OTHER_BSS;
}
if (SUPP(CARL9170FW_HW_COUNTERS))

7
drivers/net/wireless/ath/carl9170/main.c
View file

@ -1011,9 +1011,8 @@ static void carl9170_op_configure_filter(struct ieee80211_hw *hw,
if (multicast != ar->cur_mc_hash)
WARN_ON(carl9170_update_multicast(ar, multicast));
if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) {
ar->sniffer_enabled = !!(*new_flags &
(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS));
if (changed_flags & FIF_OTHER_BSS) {
ar->sniffer_enabled = !!(*new_flags & FIF_OTHER_BSS);
WARN_ON(carl9170_set_operating_mode(ar));
}
@ -1033,7 +1032,7 @@ static void carl9170_op_configure_filter(struct ieee80211_hw *hw,
if (!(*new_flags & FIF_PSPOLL))
rx_filter |= CARL9170_RX_FILTER_CTL_PSPOLL;
if (!(*new_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS))) {
if (!(*new_flags & FIF_OTHER_BSS)) {
rx_filter |= CARL9170_RX_FILTER_OTHER_RA;
rx_filter |= CARL9170_RX_FILTER_DECRY_FAIL;
}

8
drivers/net/wireless/b43/main.c
View file

@ -3131,8 +3131,6 @@ static void b43_adjust_opmode(struct b43_wldev *dev)
ctl |= B43_MACCTL_KEEP_BAD;
if (wl->filter_flags & FIF_PLCPFAIL)
ctl |= B43_MACCTL_KEEP_BADPLCP;
if (wl->filter_flags & FIF_PROMISC_IN_BSS)
ctl |= B43_MACCTL_PROMISC;
if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
ctl |= B43_MACCTL_BEACPROMISC;
@ -4310,16 +4308,14 @@ static void b43_op_configure_filter(struct ieee80211_hw *hw,
goto out_unlock;
}
*fflags &= FIF_PROMISC_IN_BSS |
FIF_ALLMULTI |
*fflags &= FIF_ALLMULTI |
FIF_FCSFAIL |
FIF_PLCPFAIL |
FIF_CONTROL |
FIF_OTHER_BSS |
FIF_BCN_PRBRESP_PROMISC;
changed &= FIF_PROMISC_IN_BSS |
FIF_ALLMULTI |
changed &= FIF_ALLMULTI |
FIF_FCSFAIL |
FIF_PLCPFAIL |
FIF_CONTROL |

8
drivers/net/wireless/b43legacy/main.c
View file

@ -2055,8 +2055,6 @@ static void b43legacy_adjust_opmode(struct b43legacy_wldev *dev)
ctl |= B43legacy_MACCTL_KEEP_BAD;
if (wl->filter_flags & FIF_PLCPFAIL)
ctl |= B43legacy_MACCTL_KEEP_BADPLCP;
if (wl->filter_flags & FIF_PROMISC_IN_BSS)
ctl |= B43legacy_MACCTL_PROMISC;
if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
ctl |= B43legacy_MACCTL_BEACPROMISC;
@ -2922,16 +2920,14 @@ static void b43legacy_op_configure_filter(struct ieee80211_hw *hw,
}
spin_lock_irqsave(&wl->irq_lock, flags);
*fflags &= FIF_PROMISC_IN_BSS |
FIF_ALLMULTI |
*fflags &= FIF_ALLMULTI |
FIF_FCSFAIL |
FIF_PLCPFAIL |
FIF_CONTROL |
FIF_OTHER_BSS |
FIF_BCN_PRBRESP_PROMISC;
changed &= FIF_PROMISC_IN_BSS |
FIF_ALLMULTI |
changed &= FIF_ALLMULTI |
FIF_FCSFAIL |
FIF_PLCPFAIL |
FIF_CONTROL |

5
drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c
View file

@ -41,8 +41,7 @@
#define BRCMS_FLUSH_TIMEOUT 500 /* msec */
/* Flags we support */
#define MAC_FILTERS (FIF_PROMISC_IN_BSS | \
FIF_ALLMULTI | \
#define MAC_FILTERS (FIF_ALLMULTI | \
FIF_FCSFAIL | \
FIF_CONTROL | \
FIF_OTHER_BSS | \
@ -743,8 +742,6 @@ brcms_ops_configure_filter(struct ieee80211_hw *hw,
changed_flags &= MAC_FILTERS;
*total_flags &= MAC_FILTERS;
if (changed_flags & FIF_PROMISC_IN_BSS)
brcms_dbg_info(core, "FIF_PROMISC_IN_BSS\n");
if (changed_flags & FIF_ALLMULTI)
brcms_dbg_info(core, "FIF_ALLMULTI\n");
if (changed_flags & FIF_FCSFAIL)

2
drivers/net/wireless/brcm80211/brcmsmac/main.c
View file

@ -3571,7 +3571,7 @@ void brcms_c_mac_promisc(struct brcms_c_info *wlc, uint filter_flags)
wlc->filter_flags = filter_flags;
if (filter_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS))
if (filter_flags & FIF_OTHER_BSS)
promisc_bits |= MCTL_PROMISC;
if (filter_flags & FIF_BCN_PRBRESP_PROMISC)

10
drivers/net/wireless/cw1200/sta.c
View file

@ -578,13 +578,11 @@ void cw1200_configure_filter(struct ieee80211_hw *dev,
{
struct cw1200_common *priv = dev->priv;
bool listening = !!(*total_flags &
(FIF_PROMISC_IN_BSS |
FIF_OTHER_BSS |
(FIF_OTHER_BSS |
FIF_BCN_PRBRESP_PROMISC |
FIF_PROBE_REQ));
*total_flags &= FIF_PROMISC_IN_BSS |
FIF_OTHER_BSS |
*total_flags &= FIF_OTHER_BSS |
FIF_FCSFAIL |
FIF_BCN_PRBRESP_PROMISC |
FIF_PROBE_REQ;
@ -592,14 +590,12 @@ void cw1200_configure_filter(struct ieee80211_hw *dev,
down(&priv->scan.lock);
mutex_lock(&priv->conf_mutex);
priv->rx_filter.promiscuous = (*total_flags & FIF_PROMISC_IN_BSS)
? 1 : 0;
priv->rx_filter.promiscuous = 0;
priv->rx_filter.bssid = (*total_flags & (FIF_OTHER_BSS |
FIF_PROBE_REQ)) ? 1 : 0;
priv->rx_filter.fcs = (*total_flags & FIF_FCSFAIL) ? 1 : 0;
priv->disable_beacon_filter = !(*total_flags &
(FIF_BCN_PRBRESP_PROMISC |
FIF_PROMISC_IN_BSS |
FIF_PROBE_REQ));
if (priv->listening != listening) {
priv->listening = listening;

4
drivers/net/wireless/iwlegacy/3945-mac.c
View file

@ -3048,7 +3048,7 @@ il3945_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
D_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", changed_flags,
*total_flags);
CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
CHK(FIF_OTHER_BSS, RXON_FILTER_PROMISC_MSK);
CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK);
CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
@ -3074,7 +3074,7 @@ il3945_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
* filters into the device.
*/
*total_flags &=
FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
FIF_OTHER_BSS | FIF_ALLMULTI |
FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
}

4
drivers/net/wireless/iwlegacy/4965-mac.c
View file

@ -6166,7 +6166,7 @@ il4965_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
D_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", changed_flags,
*total_flags);
CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
CHK(FIF_OTHER_BSS, RXON_FILTER_PROMISC_MSK);
/* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
@ -6192,7 +6192,7 @@ il4965_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
* filters into the device.
*/
*total_flags &=
FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
FIF_OTHER_BSS | FIF_ALLMULTI |
FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
}

4
drivers/net/wireless/iwlwifi/dvm/mac80211.c
View file

@ -1061,7 +1061,7 @@ static void iwlagn_configure_filter(struct ieee80211_hw *hw,
IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
changed_flags, *total_flags);
CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
CHK(FIF_OTHER_BSS, RXON_FILTER_PROMISC_MSK);
/* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
@ -1088,7 +1088,7 @@ static void iwlagn_configure_filter(struct ieee80211_hw *hw,
* since we currently do not support programming multicast
* filters into the device.
*/
*total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
*total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI |
FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
}

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