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hostapd: make wnm_sleep_mode_no_keys configurable

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In the aftermath of the KRACK attacks, hostapd gained an AP-side workaround
against WNM-Sleep Mode GTK/IGTK reinstallation attacks. WNM Sleep Mode is not
enabled by default on OpenWrt, but it is configurable through the option
wnm_sleep_mode. Thus, make the AP-side workaround configurable as well by
exposing the option wnm_sleep_mode_no_keys. If you use the option
wpa_disable_eapol_key_retries and have wnm_sleep_mode enabled, you might
consider using this workaround.

Signed-off-by: Timo Sigurdsson <public_timo.s@silentcreek.de>
This commit is contained in:
Timo Sigurdsson 2021-06-15 23:09:41 +02:00 committed by Paul Spooren
parent cc7316d1e9
commit bf98faaac8
1 changed files with 7 additions and 3 deletions
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10
package/network/services/hostapd/files/hostapd.sh
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@ -295,7 +295,7 @@ hostapd_common_add_bss_config() {
config_add_string wps_device_type wps_device_name wps_manufacturer wps_pin
config_add_string multi_ap_backhaul_ssid multi_ap_backhaul_key
config_add_boolean wnm_sleep_mode bss_transition
config_add_boolean wnm_sleep_mode wnm_sleep_mode_no_keys bss_transition
config_add_int time_advertisement
config_add_string time_zone
@ -756,13 +756,17 @@ hostapd_set_bss_options() {
append bss_conf "iapp_interface=$ifname" "$N"
}
json_get_vars time_advertisement time_zone wnm_sleep_mode bss_transition
json_get_vars time_advertisement time_zone wnm_sleep_mode wnm_sleep_mode_no_keys bss_transition
set_default bss_transition 0
set_default wnm_sleep_mode 0
set_default wnm_sleep_mode_no_keys 0
[ -n "$time_advertisement" ] && append bss_conf "time_advertisement=$time_advertisement" "$N"
[ -n "$time_zone" ] && append bss_conf "time_zone=$time_zone" "$N"
[ "$wnm_sleep_mode" -eq "1" ] && append bss_conf "wnm_sleep_mode=1" "$N"
if [ "$wnm_sleep_mode" -eq "1" ]; then
append bss_conf "wnm_sleep_mode=1" "$N"
[ "$wnm_sleep_mode_no_keys" -eq "1" ] && append bss_conf "wnm_sleep_mode_no_keys=1" "$N"
fi
[ "$bss_transition" -eq "1" ] && append bss_conf "bss_transition=1" "$N"
json_get_vars ieee80211k rrm_neighbor_report rrm_beacon_report