mac80211: disable 802.11n support if htmode is not set to HT* or VHT*
[librecmc/librecmc.git] / package / kernel / mac80211 / files / lib / netifd / wireless / mac80211.sh
1 #!/bin/sh
2 . /lib/netifd/netifd-wireless.sh
3 . /lib/netifd/hostapd.sh
4
5 init_wireless_driver "$@"
6
7 MP_CONFIG_INT="mesh_retry_timeout mesh_confirm_timeout mesh_holding_timeout mesh_max_peer_links
8                mesh_max_retries mesh_ttl mesh_element_ttl mesh_hwmp_max_preq_retries
9                mesh_path_refresh_time mesh_min_discovery_timeout mesh_hwmp_active_path_timeout
10                mesh_hwmp_preq_min_interval mesh_hwmp_net_diameter_traversal_time mesh_hwmp_rootmode
11                mesh_hwmp_rann_interval mesh_gate_announcements mesh_sync_offset_max_neighor
12                mesh_rssi_threshold mesh_hwmp_active_path_to_root_timeout mesh_hwmp_root_interval
13                mesh_hwmp_confirmation_interval mesh_awake_window mesh_plink_timeout"
14 MP_CONFIG_BOOL="mesh_auto_open_plinks mesh_fwding"
15 MP_CONFIG_STRING="mesh_power_mode"
16
17 drv_mac80211_init_device_config() {
18         hostapd_common_add_device_config
19
20         config_add_string path phy 'macaddr:macaddr'
21         config_add_string hwmode
22         config_add_int beacon_int chanbw frag rts
23         config_add_int rxantenna txantenna antenna_gain txpower distance
24         config_add_boolean noscan
25         config_add_array ht_capab
26         config_add_boolean \
27                 rxldpc \
28                 short_gi_80 \
29                 short_gi_160 \
30                 tx_stbc_2by1 \
31                 su_beamformer \
32                 su_beamformee \
33                 mu_beamformer \
34                 mu_beamformee \
35                 vht_txop_ps \
36                 htc_vht \
37                 rx_antenna_pattern \
38                 tx_antenna_pattern
39         config_add_int vht_max_mpdu vht_max_rx_stbc vht_link_adapt vht160
40 }
41
42 drv_mac80211_init_iface_config() {
43         hostapd_common_add_bss_config
44
45         config_add_string 'macaddr:macaddr' ifname
46
47         config_add_boolean wds powersave
48         config_add_int maxassoc
49         config_add_int max_listen_int
50         config_add_int dtim_interval
51
52         # mesh
53         config_add_string mesh_id
54         config_add_int $MP_CONFIG_INT
55         config_add_boolean $MP_CONFIG_BOOL
56         config_add_string $MP_CONFIG_STRING
57 }
58
59 mac80211_hostapd_setup_base() {
60         local phy="$1"
61
62         json_select config
63
64         [ "$auto_channel" -gt 0 ] && channel=acs_survey
65
66         [ "$enable_ht" -gt 0 ] && {
67                 json_get_vars noscan htmode
68                 json_get_values ht_capab_list ht_capab
69
70                 ieee80211n=1
71                 ht_capab=
72                 case "$htmode" in
73                         HT20) ;;
74                         HT40*|VHT40|VHT80|VHT160)
75                                 case "$(( ($channel / 4) % 2 ))" in
76                                         1) ht_capab="[HT40+]";;
77                                         0) ht_capab="[HT40-]";;
78                                 esac
79                         ;;
80                         *) ieee80211n= ;;
81                 esac
82
83                 [ -n "$ieee80211n" ] && append base_cfg "ieee80211n=1" "$N"
84
85                 for cap in $ht_capab_list; do
86                         ht_capab="$ht_capab[$cap]"
87                 done
88
89                 [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
90
91                 # 802.11ac
92                 enable_ac=0
93                 idx="$channel"
94                 case "$htmode" in
95                         VHT40)
96                                 case "$(( ($channel / 4) % 2 ))" in
97                                         1) idx=$(($channel + 2));;
98                                         0) idx=$(($channel - 2));;
99                                 esac
100                                 enable_ac=1
101                                 append base_cfg "vht_oper_chwidth=0" "$N"
102                                 append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
103                         ;;
104                         VHT80)
105                                 case "$(( ($channel / 4) % 2 ))" in
106                                         1) idx=$(($channel + 6));;
107                                         2) idx=$(($channel + 2));;
108                                         3) idx=$(($channel - 2));;
109                                         0) idx=$(($channel - 6));;
110                                 esac
111                                 enable_ac=1
112                                 append base_cfg "vht_oper_chwidth=1" "$N"
113                                 append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
114                         ;;
115                         VHT160)
116                                 case "$channel" in
117                                         36|40|44|48|52|56|60|64) idx=50;;
118                                         100|104|108|112|116|120|124|128) idx=114;;
119                                 esac
120                                 enable_ac=1
121                                 append base_cfg "vht_oper_chwidth=2" "$N"
122                                 append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
123                         ;;
124                 esac
125
126                 if [ "$enable_ac" != "0" ]; then
127                         json_get_vars \
128                                 rxldpc:1 \
129                                 short_gi_80:1 \
130                                 short_gi_160:1 \
131                                 tx_stbc_2by1:1 \
132                                 su_beamformer:1 \
133                                 su_beamformee:1 \
134                                 mu_beamformer:1 \
135                                 mu_beamformee:1 \
136                                 vht_txop_ps:1 \
137                                 htc_vht:1 \
138                                 rx_antenna_pattern:1 \
139                                 tx_antenna_pattern:1 \
140                                 vht_max_mpdu:11454 \
141                                 vht_max_rx_stbc:4 \
142                                 vht_link_adapt:3 \
143                                 vht160:2
144
145                         append base_cfg "ieee80211ac=1" "$N"
146                         vht_capab=""
147                         vht_cap=0
148                         for cap in $(iw phy "$phy" info | awk -F "[()]" '/VHT Capabilities/ { print $2 }'); do
149                                 vht_cap="$(($vht_cap | $cap))"
150                         done
151
152                         # boolean
153                         [ "$((($vht_cap & 16) * $rxldpc))" -eq 16 ] && \
154                                 vht_capab="$vht_capab[RXLDPC]"
155                         [ "$((($vht_cap & 32) * $short_gi_80))" -eq 32 ] && \
156                                 vht_capab="$vht_capab[SHORT-GI-80]"
157                         [ "$((($vht_cap & 64) * $short_gi_160))" -eq 64 ] && \
158                                 vht_capab="$vht_capab[SHORT-GI-160]"
159                         [ "$((($vht_cap & 128) * $tx_stbc_2by1))" -eq 128 ] && \
160                                 vht_capab="$vht_capab[TX-STBC-2BY1]"
161                         [ "$((($vht_cap & 2048) * $su_beamformer))" -eq 2048 ] && \
162                                 vht_capab="$vht_capab[SU-BEAMFORMER]"
163                         [ "$((($vht_cap & 4096) * $su_beamformee))" -eq 4096 ] && \
164                                 vht_capab="$vht_capab[SU-BEAMFORMEE]"
165                         [ "$((($vht_cap & 524288) * $mu_beamformer))" -eq 524288 ] && \
166                                 vht_capab="$vht_capab[MU-BEAMFORMER]"
167                         [ "$((($vht_cap & 1048576) * $mu_beamformee))" -eq 1048576 ] && \
168                                 vht_capab="$vht_capab[MU-BEAMFORMEE]"
169                         [ "$((($vht_cap & 2097152) * $vht_txop_ps))" -eq 2097152 ] && \
170                                 vht_capab="$vht_capab[VHT-TXOP-PS]"
171                         [ "$((($vht_cap & 4194304) * $htc_vht))" -eq 4194304 ] && \
172                                 vht_capab="$vht_capab[HTC-VHT]"
173                         [ "$((($vht_cap & 268435456) * $rx_antenna_pattern))" -eq 268435456 ] && \
174                                 vht_capab="$vht_capab[RX-ANTENNA-PATTERN]"
175                         [ "$((($vht_cap & 536870912) * $tx_antenna_pattern))" -eq 536870912 ] && \
176                                 vht_capab="$vht_capab[TX-ANTENNA-PATTERN]"
177
178                         # supported Channel widths
179                         vht160_hw=0
180                         [ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \
181                                 vht160_hw=1
182                         [ "$(($vht_cap & 12))" -eq 8 -a 2 -le "$vht160" ] && \
183                                 vht160_hw=2
184                         [ "$vht160_hw" = 1 ] && vht_capab="$vht_capab[VHT160]"
185                         [ "$vht160_hw" = 2 ] && vht_capab="$vht_capab[VHT160-80PLUS80]"
186
187                         # maximum MPDU length
188                         vht_max_mpdu_hw=3895
189                         [ "$(($vht_cap & 3))" -ge 1 -a 7991 -le "$vht_max_mpdu" ] && \
190                                 vht_max_mpdu_hw=7991
191                         [ "$(($vht_cap & 3))" -ge 2 -a 11454 -le "$vht_max_mpdu" ] && \
192                                 vht_max_mpdu_hw=11454
193                         [ "$vht_max_mpdu_hw" != 3895 ] && \
194                                 vht_capab="$vht_capab[MAX-MPDU-$vht_max_mpdu_hw]"
195
196                         # support for the reception of PPDUs using STBC
197                         vht_max_rx_stbc_hw=0
198                         [ "$(($vht_cap & 1792))" -ge 256 -a 1 -le "$vht_max_rx_stbc" ] && \
199                                 vht_max_rx_stbc_hw=1
200                         [ "$(($vht_cap & 1792))" -ge 512 -a 2 -le "$vht_max_rx_stbc" ] && \
201                                 vht_max_rx_stbc_hw=2
202                         [ "$(($vht_cap & 1792))" -ge 768 -a 3 -le "$vht_max_rx_stbc" ] && \
203                                 vht_max_rx_stbc_hw=3
204                         [ "$(($vht_cap & 1792))" -ge 1024 -a 4 -le "$vht_max_rx_stbc" ] && \
205                                 vht_max_rx_stbc_hw=4
206                         [ "$vht_max_rx_stbc_hw" = 1 ] && vht_capab="$vht_capab[RX-STBC-1]"
207                         [ "$vht_max_rx_stbc_hw" = 2 ] && vht_capab="$vht_capab[RX-STBC-12]"
208                         [ "$vht_max_rx_stbc_hw" = 3 ] && vht_capab="$vht_capab[RX-STBC-123]"
209                         [ "$vht_max_rx_stbc_hw" = 4 ] && vht_capab="$vht_capab[RX-STBC-1234]"
210
211                         # whether or not the STA supports link adaptation using VHT variant
212                         vht_link_adapt_hw=0
213                         [ "$(($vht_cap & 201326592))" -ge 134217728 -a 2 -le "$vht_link_adapt" ] && \
214                                 vht_link_adapt_hw=2
215                         [ "$(($vht_cap & 201326592))" -ge 201326592 -a 3 -le "$vht_link_adapt" ] && \
216                                 vht_link_adapt_hw=3
217                         [ "$vht_link_adapt_hw" != 0 ] && \
218                                 vht_capab="$vht_capab[VHT-LINK-ADAPT-$vht_link_adapt_hw]"
219
220                         [ -n "$vht_capab" ] && append base_cfg "vht_capab=$vht_capab" "$N"
221                 fi
222         }
223
224         hostapd_prepare_device_config "$hostapd_conf_file" nl80211
225         cat >> "$hostapd_conf_file" <<EOF
226 ${channel:+channel=$channel}
227 ${noscan:+noscan=$noscan}
228 $base_cfg
229
230 EOF
231         json_select ..
232 }
233
234 mac80211_hostapd_setup_bss() {
235         local phy="$1"
236         local ifname="$2"
237         local macaddr="$3"
238         local type="$4"
239
240         hostapd_cfg=
241         append hostapd_cfg "$type=$ifname" "$N"
242
243         hostapd_set_bss_options hostapd_cfg "$vif" || return 1
244         json_get_vars wds dtim_period max_listen_int
245
246         set_default wds 0
247
248         [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
249         [ "$staidx" -gt 0 ] && append hostapd_cfg "start_disabled=1" "$N"
250
251         cat >> /var/run/hostapd-$phy.conf <<EOF
252 $hostapd_cfg
253 bssid=$macaddr
254 ${dtim_period:+dtim_period=$dtim_period}
255 ${max_listen_int:+max_listen_interval=$max_listen_int}
256 EOF
257 }
258
259 mac80211_generate_mac() {
260         local phy="$1"
261         local id="${macidx:-0}"
262
263         local ref="$(cat /sys/class/ieee80211/${phy}/macaddress)"
264         local mask="$(cat /sys/class/ieee80211/${phy}/address_mask)"
265
266         [ "$mask" = "00:00:00:00:00:00" ] && mask="ff:ff:ff:ff:ff:ff";
267         local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
268
269         local mask1=$1
270         local mask6=$6
271
272         local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
273
274         macidx=$(($id + 1))
275         [ "$((0x$mask1))" -gt 0 ] && {
276                 b1="0x$1"
277                 [ "$id" -gt 0 ] && \
278                         b1=$(($b1 ^ ((($id - 1) << 2) | 0x2)))
279                 printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6
280                 return
281         }
282
283         [ "$((0x$mask6))" -lt 255 ] && {
284                 printf "%s:%s:%s:%s:%s:%02x" $1 $2 $3 $4 $5 $(( 0x$6 ^ $id ))
285                 return
286         }
287
288         off2=$(( (0x$6 + $id) / 0x100 ))
289         printf "%s:%s:%s:%s:%02x:%02x" \
290                 $1 $2 $3 $4 \
291                 $(( (0x$5 + $off2) % 0x100 )) \
292                 $(( (0x$6 + $id) % 0x100 ))
293 }
294
295 find_phy() {
296         [ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0
297         [ -n "$path" -a -d "/sys/devices/$path/ieee80211" ] && {
298                 phy="$(ls /sys/devices/$path/ieee80211 | grep -m 1 phy)"
299                 [ -n "$phy" ] && return 0
300         }
301         [ -n "$macaddr" ] && {
302                 for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
303                         grep -i -q "$macaddr" "/sys/class/ieee80211/${phy}/macaddress" && return 0
304                 done
305         }
306         return 1
307 }
308
309 mac80211_check_ap() {
310         has_ap=1
311 }
312
313 mac80211_prepare_vif() {
314         json_select config
315
316         json_get_vars ifname mode ssid wds powersave macaddr
317
318         [ -n "$ifname" ] || ifname="wlan${phy#phy}${if_idx:+-$if_idx}"
319         if_idx=$((${if_idx:-0} + 1))
320
321         set_default wds 0
322         set_default powersave 0
323
324         json_select ..
325
326         [ -n "$macaddr" ] || {
327                 macaddr="$(mac80211_generate_mac $phy)"
328                 macidx="$(($macidx + 1))"
329         }
330
331         json_add_object data
332         json_add_string ifname "$ifname"
333         json_close_object
334         json_select config
335
336         # It is far easier to delete and create the desired interface
337         case "$mode" in
338                 adhoc)
339                         iw phy "$phy" interface add "$ifname" type adhoc
340                 ;;
341                 ap)
342                         # Hostapd will handle recreating the interface and
343                         # subsequent virtual APs belonging to the same PHY
344                         if [ -n "$hostapd_ctrl" ]; then
345                                 type=bss
346                         else
347                                 type=interface
348                         fi
349
350                         mac80211_hostapd_setup_bss "$phy" "$ifname" "$macaddr" "$type" || return
351
352                         [ -n "$hostapd_ctrl" ] || {
353                                 iw phy "$phy" interface add "$ifname" type managed
354                                 hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd/$ifname}"
355                         }
356                 ;;
357                 mesh)
358                         json_get_vars key mesh_id
359                         if [ -n "$key" ]; then
360                                 iw phy "$phy" interface add "$ifname" type mp
361                         else
362                                 iw phy "$phy" interface add "$ifname" type mp mesh_id "$mesh_id"
363                         fi
364                 ;;
365                 monitor)
366                         iw phy "$phy" interface add "$ifname" type monitor
367                 ;;
368                 sta)
369                         local wdsflag=
370                         staidx="$(($staidx + 1))"
371                         [ "$wds" -gt 0 ] && wdsflag="4addr on"
372                         iw phy "$phy" interface add "$ifname" type managed $wdsflag
373                         [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
374                         iw "$ifname" set power_save "$powersave"
375                 ;;
376         esac
377
378         case "$mode" in
379                 monitor|mesh)
380                         [ "$auto_channel" -gt 0 ] || iw dev "$ifname" set channel "$channel" $htmode
381                 ;;
382         esac
383
384         if [ "$mode" != "ap" ]; then
385                 # ALL ap functionality will be passed to hostapd
386                 # All interfaces must have unique mac addresses
387                 # which can either be explicitly set in the device
388                 # section, or automatically generated
389                 ifconfig "$ifname" hw ether "$macaddr"
390         fi
391
392         json_select ..
393 }
394
395 mac80211_setup_supplicant() {
396         wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1
397         wpa_supplicant_add_network "$ifname"
398         wpa_supplicant_run "$ifname" ${hostapd_ctrl:+-H $hostapd_ctrl}
399 }
400
401 mac80211_setup_adhoc() {
402         json_get_vars bssid ssid key mcast_rate
403
404         keyspec=
405         [ "$auth_type" == "wep" ] && {
406                 set_default key 1
407                 case "$key" in
408                         [1234])
409                                 local idx
410                                 for idx in 1 2 3 4; do
411                                         json_get_var ikey "key$idx"
412
413                                         [ -n "$ikey" ] && {
414                                                 ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
415                                                 [ $idx -eq $key ] && ikey="d:$ikey"
416                                                 append keyspec "$ikey"
417                                         }
418                                 done
419                         ;;
420                         *)
421                                 append keyspec "d:0:$(prepare_key_wep "$key")"
422                         ;;
423                 esac
424         }
425
426         brstr=
427         for br in $basic_rate_list; do
428                 hostapd_add_rate brstr "$br"
429         done
430
431         mcval=
432         [ -n "$mcast_rate" ] && hostapd_add_rate mcval "$mcast_rate"
433
434         iw dev "$ifname" ibss join "$ssid" $freq $htmode fixed-freq $bssid \
435                 ${beacon_int:+beacon-interval $beacon_int} \
436                 ${brstr:+basic-rates $brstr} \
437                 ${mcval:+mcast-rate $mcval} \
438                 ${keyspec:+keys $keyspec}
439 }
440
441 mac80211_setup_vif() {
442         local name="$1"
443         local failed
444
445         json_select data
446         json_get_vars ifname
447         json_select ..
448
449         json_select config
450         json_get_vars mode
451         json_get_var vif_txpower txpower
452
453         ifconfig "$ifname" up || {
454                 wireless_setup_vif_failed IFUP_ERROR
455                 json_select ..
456                 return
457         }
458
459         set_default vif_txpower "$txpower"
460         [ -z "$vif_txpower" ] || iw dev "$ifname" set txpower fixed "${vif_txpower%%.*}00"
461
462         case "$mode" in
463                 mesh)
464                         for var in $MP_CONFIG_INT $MP_CONFIG_BOOL $MP_CONFIG_STRING; do
465                                 json_get_var mp_val "$var"
466                                 [ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$var" "$mp_val"
467                         done
468
469                         # authsae
470                         json_get_vars key
471                         if [ -n "$key" ]; then
472                                 if [ -e "/lib/wifi/authsae.sh" ]; then
473                                         . /lib/wifi/authsae.sh
474                                         authsae_start_interface || failed=1
475                                 else
476                                         wireless_setup_vif_failed AUTHSAE_NOT_INSTALLED
477                                         json_select ..
478                                         return
479                                 fi
480                         fi
481                 ;;
482                 adhoc)
483                         wireless_vif_parse_encryption
484                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
485                                 mac80211_setup_supplicant || failed=1
486                         else
487                                 mac80211_setup_adhoc
488                         fi
489                 ;;
490                 sta)
491                         mac80211_setup_supplicant || failed=1
492                 ;;
493         esac
494
495         json_select ..
496         [ -n "$failed" ] || wireless_add_vif "$name" "$ifname"
497 }
498
499 get_freq() {
500         local phy="$1"
501         local chan="$2"
502         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
503 }
504
505 mac80211_interface_cleanup() {
506         local phy="$1"
507
508         for wdev in $(list_phy_interfaces "$phy"); do
509                 ifconfig "$wdev" down 2>/dev/null
510                 iw dev "$wdev" del
511         done
512 }
513
514 drv_mac80211_cleanup() {
515         hostapd_common_cleanup
516 }
517
518 drv_mac80211_setup() {
519         json_select config
520         json_get_vars \
521                 phy macaddr path \
522                 country chanbw distance \
523                 txpower antenna_gain \
524                 rxantenna txantenna \
525                 frag rts beacon_int
526         json_get_values basic_rate_list basic_rate
527         json_select ..
528
529         find_phy || {
530                 echo "Could not find PHY for device '$1'"
531                 wireless_set_retry 0
532                 return 1
533         }
534
535         wireless_set_data phy="$phy"
536         mac80211_interface_cleanup "$phy"
537
538         # convert channel to frequency
539         [ "$auto_channel" -gt 0 ] || freq="$(get_freq "$phy" "$channel")"
540
541         [ -n "$country" ] && {
542                 iw reg get | grep -q "^country $country:" || {
543                         iw reg set "$country"
544                         sleep 1
545                 }
546         }
547
548         hostapd_conf_file="/var/run/hostapd-$phy.conf"
549
550         no_ap=1
551         macidx=0
552         staidx=0
553
554         [ -n "$chanbw" ] && {
555                 for file in /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode; do
556                         [ -f "$file" ] && echo "$chanbw" > "$file"
557                 done
558         }
559
560         set_default rxantenna all
561         set_default txantenna all
562         set_default distance 0
563         set_default antenna_gain 0
564
565         iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
566         iw phy "$phy" set antenna_gain $antenna_gain
567         iw phy "$phy" set distance "$distance"
568
569         [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
570         [ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
571
572         has_ap=
573         hostapd_ctrl=
574         for_each_interface "ap" mac80211_check_ap
575
576         rm -f "$hostapd_conf_file"
577         [ -n "$has_ap" ] && mac80211_hostapd_setup_base "$phy"
578
579         for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
580         for_each_interface "ap" mac80211_prepare_vif
581
582         [ -n "$hostapd_ctrl" ] && {
583                 /usr/sbin/hostapd -P /var/run/wifi-$phy.pid -B "$hostapd_conf_file"
584                 ret="$?"
585                 wireless_add_process "$(cat /var/run/wifi-$phy.pid)" "/usr/sbin/hostapd" 1
586                 [ "$ret" != 0 ] && {
587                         wireless_setup_failed HOSTAPD_START_FAILED
588                         return
589                 }
590         }
591
592         for_each_interface "ap sta adhoc mesh monitor" mac80211_setup_vif
593
594         wireless_set_up
595 }
596
597 list_phy_interfaces() {
598         local phy="$1"
599         if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then
600                 ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null;
601         else
602                 ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g'
603         fi
604 }
605
606 drv_mac80211_teardown() {
607         wireless_process_kill_all
608
609         json_select data
610         json_get_vars phy
611         json_select ..
612
613         mac80211_interface_cleanup "$phy"
614 }
615
616 add_driver mac80211