On 2/24/14, 9:46 AM, Matti Laakso wrote: >> On 2/17/14, 09:05 PM, Matti Laakso wrote: >> >/ The latest hostapd and some of the wireless drivers support DFS, which >> />/ is required on the 5 GHz band in many countries. This patch adds the >> />/ correct option to the hostapd configuration if dfs=1 is set (along with >> />/ the country code) in the wireless configuration. >> />/ >> / >> It is good to see that there are more people working on DFS support. One >> month ago we also added a ticket to solve the same "ieee80211d=1" >> problem (https://dev.openwrt.org/ticket/14867). >> Our patch reuses the "doth" variable which already exists (see below). >> >> Index: network/services/hostapd/files/netifd.sh >> =================================================================== >> --- network/services/hostapd/files/netifd.sh (revision 39386) >> +++ network/services/hostapd/files/netifd.sh (working copy) >> @@ -140,7 +140,7 @@ >> maxassoc max_inactivity disassoc_low_ack isolate auth_cache \ >> wps_pushbutton wps_label ext_registrar \ >> wps_device_type wps_device_name wps_manufacturer wps_pin \ >> - macfilter ssid wmm hidden short_preamble >> + macfilter ssid wmm hidden short_preamble doth >> >> set_default isolate 0 >> set_default maxassoc 0 >> @@ -149,6 +149,7 @@ >> set_default disassoc_low_ack 1 >> set_default hidden 0 >> set_default wmm 1 >> + set_default doth 1 >> >> append bss_conf "ctrl_interface=/var/run/hostapd" >> if [ "$isolate" -gt 0 ]; then >> @@ -160,6 +161,9 @@ >> if [ "$max_inactivity" -gt 0 ]; then >> append bss_conf "ap_max_inactivity=$max_inactivity" "$N" >> fi >> + if [ "$doth" -gt 0 ]; then >> + append bss_conf "ieee80211h=1" "$N" >> + fi >> >> append bss_conf "disassoc_low_ack=$disassoc_low_ack" "$N" >> append bss_conf "preamble=$short_preamble" "$N" > > I wasn't actually even aware of doth, but now looking at wiki, it indeed > is there. As an interface level attribute it is a bit strange, though, > as the channel is set at the device level. DFS support depends also on > the country code, which is a device level attribute as well. I also > think that 'dfs' is a more obvious name for DFS support for the casual > user :P
I agree that 'doth' is not the best name. > > From your trac ticket I got the impression that you were able to enable > DFS even without enabling the ATH9K_DFS_CERTIFIED -configuration option. > Is that really the case? Have you witnessed whether it actually changes > channels? Yes it is working. The following worked for me today with a Ubiquiti Nanostation M5: * checkout trunk OpenWRT * apply our patch from ticket (https://dev.openwrt.org/ticket/14867) * compile and flash * edit /etc/config/wireless to the following ---- config wifi-device radio0 option type mac80211 option channel 60 option hwmode 11na option country 'DE' option path 'pci0000:00/0000:00:00.0' list ht_capab SHORT-GI-40 list ht_capab TX-STBC list ht_capab RX-STBC1 list ht_capab DSSS_CCK-40 option htmode HT20 # REMOVE THIS LINE TO ENABLE WIFI: option disabled 0 ---- * wifi up And now you should see an OpenWRT network on channel 60. Martin > > Matti _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
