path: root/include
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authorJouni Malinen <jouni.malinen@atheros.com>2011-02-03 18:35:19 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-02-03 16:45:29 -0500
commit681d119047761cc59a15c0bb86891f3a878997cf (patch)
treeb118fdf78870de7eea5a0449e84b4e11b046b5be /include
parentmac80211: Remove obsolete TKIP flexibility (diff)
mac80211: Add testing functionality for TKIP
TKIP countermeasures depend on devices being able to detect Michael MIC failures on received frames and for stations to report errors to the AP. In order to test that behavior, it is useful to be able to send out TKIP frames with incorrect Michael MIC. This testing behavior has minimal effect on the TX path, so it can be added to mac80211 for convenient use. The interface for using this functionality is a file in mac80211 netdev debugfs (tkip_mic_test). Writing a MAC address to the file makes mac80211 generate a dummy data frame that will be sent out using invalid Michael MIC value. In AP mode, the address needs to be for one of the associated stations or ff:ff:ff:ff:ff:ff to use a broadcast frame. In station mode, the address can be anything, e.g., the current BSSID. It should be noted that this functionality works correctly only when associated and using TKIP. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include')
1 files changed, 4 insertions, 0 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 0396cecd1d62..8fcd1691cfb7 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -341,6 +341,9 @@ struct ieee80211_bss_conf {
* the off-channel channel when a remain-on-channel offload is done
* in hardware -- normal packets still flow and are expected to be
* handled properly by the device.
+ * @IEEE80211_TX_INTFL_TKIP_MIC_FAILURE: Marks this packet to be used for TKIP
+ * testing. It will be sent out with incorrect Michael MIC key to allow
+ * TKIP countermeasures to be tested.
* Note: If you have to add new flags to the enumeration, then don't
* forget to update %IEEE80211_TX_TEMPORARY_FLAGS when necessary.
@@ -370,6 +373,7 @@ enum mac80211_tx_control_flags {
IEEE80211_TX_CTL_LDPC = BIT(22),
IEEE80211_TX_CTL_STBC = BIT(23) | BIT(24),
#define IEEE80211_TX_CTL_STBC_SHIFT 23