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| author | Jouni Malinen <jouni@codeaurora.org> | 2020-04-01 17:25:47 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2020-04-24 12:33:40 +0200 |
| commit | 4d797fce783a8eb11dd23463828db84743795046 (patch) | |
| tree | 94ebbe81ef2a0185e8f4de273d648fd9d7ed1e15 /net/wireless | |
| parent | 90e8f58dfc04d1bd48ca155cc55ebf7ba1824864 (diff) | |
| download | linux-4d797fce783a8eb11dd23463828db84743795046.tar.gz linux-4d797fce783a8eb11dd23463828db84743795046.tar.bz2 linux-4d797fce783a8eb11dd23463828db84743795046.zip | |
cfg80211: Unprotected Beacon frame RX indication
Extend cfg80211_rx_unprot_mlme_mgmt() to cover indication of unprotected
Beacon frames in addition to the previously used Deauthentication and
Disassociation frames. The Beacon frame case is quite similar, but has
couple of exceptions: this is used both with fully unprotected and also
incorrectly protected frames and there is a rate limit on the events to
avoid unnecessary flooding netlink events in case something goes wrong.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20200401142548.6990-1-jouni@codeaurora.org
[add missing kernel-doc]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/nl80211.c | 13 | ||||
| -rw-r--r-- | net/wireless/sme.c | 2 |
2 files changed, 13 insertions, 2 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 692bcd35f809..2127e5344b1a 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -15542,10 +15542,19 @@ void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf, if (WARN_ON(len < 2)) return; - if (ieee80211_is_deauth(mgmt->frame_control)) + if (ieee80211_is_deauth(mgmt->frame_control)) { cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE; - else + } else if (ieee80211_is_disassoc(mgmt->frame_control)) { cmd = NL80211_CMD_UNPROT_DISASSOCIATE; + } else if (ieee80211_is_beacon(mgmt->frame_control)) { + if (wdev->unprot_beacon_reported && + elapsed_jiffies_msecs(wdev->unprot_beacon_reported) < 10000) + return; + cmd = NL80211_CMD_UNPROT_BEACON; + wdev->unprot_beacon_reported = jiffies; + } else { + return; + } trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len); nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1, diff --git a/net/wireless/sme.c b/net/wireless/sme.c index ac3e60aa1fc8..3554c0d951f4 100644 --- a/net/wireless/sme.c +++ b/net/wireless/sme.c @@ -694,6 +694,7 @@ void __cfg80211_connect_result(struct net_device *dev, return; } + wdev->unprot_beacon_reported = 0; nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, cr, GFP_KERNEL); @@ -921,6 +922,7 @@ void __cfg80211_roamed(struct wireless_dev *wdev, cfg80211_hold_bss(bss_from_pub(info->bss)); wdev->current_bss = bss_from_pub(info->bss); + wdev->unprot_beacon_reported = 0; nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy), wdev->netdev, info, GFP_KERNEL); |