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FT: Allow STA entry to be removed/re-added with FT-over-the-DS

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FT-over-the-DS has a special case where the STA entry (and as such, the
TK) has not yet been configured to the driver depending on which driver
interface is used. For that case, allow add-STA operation to be used
(instead of set-STA). This is needed to allow mac80211-based drivers to
accept the STA parameter configuration. Since this is after a new
FT-over-DS exchange, a new TK has been derived after the last STA entry
was added to the driver, so key reinstallation is not a concern for this
case.

Fixes: 0e3bd7ac68 ("hostapd: Avoid key reinstallation in FT handshake")
Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2019-01-04 22:58:56 +02:00
parent f808bd59e8
commit 4cf5efece3
3 changed files with 33 additions and 2 deletions
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1
src/ap/sta_info.h
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@ -118,6 +118,7 @@ struct sta_info {
unsigned int power_capab:1;
unsigned int agreed_to_steer:1;
unsigned int hs20_t_c_filtering:1;
unsigned int ft_over_ds:1;
u16 auth_alg;