c5d34824995a2fd8116ef67e61b066023079dc9e
[openwrt.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         [ "$enable_ht" -gt 0 ] && {
67                 json_get_vars noscan htmode
68                 json_get_values ht_capab_list ht_capab
69
70                 append base_cfg "ieee80211n=1" "$N"
71
72                 ht_capab=
73                 case "$htmode" in
74                         HT20|HT40-|HT40+) ht_capab="[$htmode]";;
75                         VHT40|VHT80|VHT160)
76                                 case "$channel" in
77                                         36|44|52|60|100|108|116|124|132|140|149|157) ht_capab="[HT40+]";;
78                                         40|48|56|64|104|112|120|128|136|144|153|161) ht_capab="[HT40-]";;
79                                 esac
80                                 ;;
81                 esac
82                 for cap in $ht_capab_list; do
83                         ht_capab="$ht_capab[$cap]"
84                 done
85
86                 [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
87
88                 # 802.11ac
89                 enable_ac=0
90                 idx="$channel"
91                 case "$htmode" in
92                         VHT40)
93                                 case "$channel" in
94                                         36|40) idx=38;;
95                                         44|48) idx=42;;
96                                         52|56) idx=54;;
97                                         60|64) idx=58;;
98                                         100|104) idx=102;;
99                                         108|112) idx=110;;
100                                         116|120) idx=118;;
101                                         124|128) idx=126;;
102                                         132|136) idx=134;;
103                                         140|144) idx=142;;
104                                         149|153) idx=151;;
105                                         157|161) idx=159;;
106                                 esac
107                                 enable_ac=1
108                                 append base_cfg "vht_oper_chwidth=0" "$N"
109                                 append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
110                         ;;
111                         VHT80)
112                                 case "$channel" in
113                                         36|40|44|48) idx=42;;
114                                         52|56|60|64) idx=58;;
115                                         100|104|108|112) idx=106;;
116                                         116|120|124|128) idx=122;;
117                                         132|136|140|144) idx=138;;
118                                         149|153|157|161) idx=155;;
119                                 esac
120                                 enable_ac=1
121                                 append base_cfg "vht_oper_chwidth=1" "$N"
122                                 append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
123                         ;;
124                         VHT160)
125                                 case "$channel" in
126                                         36|40|44|48|52|56|60|64) idx=50;;
127                                         100|104|108|112|116|120|124|128) idx=114;;
128                                 esac
129                                 enable_ac=1
130                                 append base_cfg "vht_oper_chwidth=2" "$N"
131                                 append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
132                         ;;
133                 esac
134
135                 if [ "$enable_ac" != "0" ]; then
136                         json_get_vars \
137                                 rxldpc:1 \
138                                 short_gi_80:1 \
139                                 short_gi_160:1 \
140                                 tx_stbc_2by1:1 \
141                                 su_beamformer:1 \
142                                 su_beamformee:1 \
143                                 mu_beamformer:1 \
144                                 mu_beamformee:1 \
145                                 vht_txop_ps:1 \
146                                 htc_vht:1 \
147                                 rx_antenna_pattern:1 \
148                                 tx_antenna_pattern:1 \
149                                 vht_max_mpdu:11454 \
150                                 vht_max_rx_stbc:4 \
151                                 vht_link_adapt:3 \
152                                 vht160:2
153
154                         append base_cfg "ieee80211ac=1" "$N"
155                         vht_capab=""
156                         vht_cap=0
157                         for cap in $(iw phy "$phy" info | awk -F "[()]" '/VHT Capabilities/ { print $2 }'); do
158                                 vht_cap="$(($vht_cap | $cap))"
159                         done
160
161                         # boolean
162                         [ "$((($vht_cap & 16) * $rxldpc))" -eq 16 ] && \
163                                 vht_capab="$vht_capab[RXLDPC]"
164                         [ "$((($vht_cap & 32) * $short_gi_80))" -eq 32 ] && \
165                                 vht_capab="$vht_capab[SHORT-GI-80]"
166                         [ "$((($vht_cap & 64) * $short_gi_160))" -eq 64 ] && \
167                                 vht_capab="$vht_capab[SHORT-GI-160]"
168                         [ "$((($vht_cap & 128) * $tx_stbc_2by1))" -eq 128 ] && \
169                                 vht_capab="$vht_capab[TX-STBC-2BY1]"
170                         [ "$((($vht_cap & 2048) * $su_beamformer))" -eq 2048 ] && \
171                                 vht_capab="$vht_capab[SU-BEAMFORMER]"
172                         [ "$((($vht_cap & 4096) * $su_beamformee))" -eq 4096 ] && \
173                                 vht_capab="$vht_capab[SU-BEAMFORMEE]"
174                         [ "$((($vht_cap & 524288) * $mu_beamformer))" -eq 524288 ] && \
175                                 vht_capab="$vht_capab[MU-BEAMFORMER]"
176                         [ "$((($vht_cap & 1048576) * $mu_beamformee))" -eq 1048576 ] && \
177                                 vht_capab="$vht_capab[MU-BEAMFORMEE]"
178                         [ "$((($vht_cap & 2097152) * $vht_txop_ps))" -eq 2097152 ] && \
179                                 vht_capab="$vht_capab[VHT-TXOP-PS]"
180                         [ "$((($vht_cap & 4194304) * $htc_vht))" -eq 4194304 ] && \
181                                 vht_capab="$vht_capab[HTC-VHT]"
182                         [ "$((($vht_cap & 268435456) * $rx_antenna_pattern))" -eq 268435456 ] && \
183                                 vht_capab="$vht_capab[RX-ANTENNA-PATTERN]"
184                         [ "$((($vht_cap & 536870912) * $tx_antenna_pattern))" -eq 536870912 ] && \
185                                 vht_capab="$vht_capab[TX-ANTENNA-PATTERN]"
186
187                         # supported Channel widths
188                         vht160_hw=0
189                         [ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \
190                                 vht160_hw=1
191                         [ "$(($vht_cap & 12))" -eq 8 -a 2 -le "$vht160" ] && \
192                                 vht160_hw=2
193                         [ "$vht160_hw" = 1 ] && vht_capab="$vht_capab[VHT160]"
194                         [ "$vht160_hw" = 2 ] && vht_capab="$vht_capab[VHT160-80PLUS80]"
195
196                         # maximum MPDU length
197                         vht_max_mpdu_hw=3895
198                         [ "$(($vht_cap & 3))" -ge 1 -a 7991 -le "$vht_max_mpdu" ] && \
199                                 vht_max_mpdu_hw=7991
200                         [ "$(($vht_cap & 3))" -ge 2 -a 11454 -le "$vht_max_mpdu" ] && \
201                                 vht_max_mpdu_hw=11454
202                         [ "$vht_max_mpdu_hw" != 3895 ] && \
203                                 vht_capab="$vht_capab[MAX-MPDU-$vht_max_mpdu_hw]"
204
205                         # support for the reception of PPDUs using STBC
206                         vht_max_rx_stbc_hw=0
207                         [ "$(($vht_cap & 1792))" -ge 256 -a 1 -le "$vht_max_rx_stbc" ] && \
208                                 vht_max_rx_stbc_hw=1
209                         [ "$(($vht_cap & 1792))" -ge 512 -a 2 -le "$vht_max_rx_stbc" ] && \
210                                 vht_max_rx_stbc_hw=2
211                         [ "$(($vht_cap & 1792))" -ge 768 -a 3 -le "$vht_max_rx_stbc" ] && \
212                                 vht_max_rx_stbc_hw=3
213                         [ "$(($vht_cap & 1792))" -ge 1024 -a 4 -le "$vht_max_rx_stbc" ] && \
214                                 vht_max_rx_stbc_hw=4
215                         [ "$vht_max_rx_stbc_hw" = 1 ] && vht_capab="$vht_capab[RX-STBC-1]"
216                         [ "$vht_max_rx_stbc_hw" = 2 ] && vht_capab="$vht_capab[RX-STBC-12]"
217                         [ "$vht_max_rx_stbc_hw" = 3 ] && vht_capab="$vht_capab[RX-STBC-123]"
218                         [ "$vht_max_rx_stbc_hw" = 4 ] && vht_capab="$vht_capab[RX-STBC-1234]"
219
220                         # whether or not the STA supports link adaptation using VHT variant
221                         vht_link_adapt_hw=0
222                         [ "$(($vht_cap & 201326592))" -ge 134217728 -a 2 -le "$vht_link_adapt" ] && \
223                                 vht_link_adapt_hw=2
224                         [ "$(($vht_cap & 201326592))" -ge 201326592 -a 3 -le "$vht_link_adapt" ] && \
225                                 vht_link_adapt_hw=3
226                         [ "$vht_link_adapt_hw" != 0 ] && \
227                                 vht_capab="$vht_capab[VHT-LINK-ADAPT-$vht_link_adapt_hw]"
228
229                         [ -n "$vht_capab" ] && append base_cfg "vht_capab=$vht_capab" "$N"
230                 fi
231         }
232
233         hostapd_prepare_device_config "$hostapd_conf_file" nl80211
234         cat >> "$hostapd_conf_file" <<EOF
235 ${channel:+channel=$channel}
236 ${noscan:+noscan=$noscan}
237 $base_cfg
238
239 EOF
240         json_select ..
241 }
242
243 mac80211_hostapd_setup_bss() {
244         local phy="$1"
245         local ifname="$2"
246         local macaddr="$3"
247         local type="$4"
248
249         hostapd_cfg=
250         append hostapd_cfg "$type=$ifname" "$N"
251
252         hostapd_set_bss_options hostapd_cfg "$vif" || return 1
253         json_get_vars wds dtim_period max_listen_int
254
255         set_default wds 0
256
257         [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
258         [ "$staidx" -gt 0 ] && append hostapd_cfg "start_disabled=1" "$N"
259
260         cat >> /var/run/hostapd-$phy.conf <<EOF
261 $hostapd_cfg
262 bssid=$macaddr
263 ${dtim_period:+dtim_period=$dtim_period}
264 ${max_listen_int:+max_listen_interval=$max_listen_int}
265 EOF
266 }
267
268 mac80211_generate_mac() {
269         local phy="$1"
270         local id="${macidx:-0}"
271
272         local ref="$(cat /sys/class/ieee80211/${phy}/macaddress)"
273         local mask="$(cat /sys/class/ieee80211/${phy}/address_mask)"
274
275         [ "$mask" = "00:00:00:00:00:00" ] && mask="ff:ff:ff:ff:ff:ff";
276         local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
277
278         local mask1=$1
279         local mask6=$6
280
281         local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
282
283         macidx=$(($id + 1))
284         [ "$((0x$mask1))" -gt 0 ] && {
285                 b1="0x$1"
286                 [ "$id" -gt 0 ] && \
287                         b1=$(($b1 ^ ((($id - 1) << 2) | 0x2)))
288                 printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6
289                 return
290         }
291
292         [ "$((0x$mask6))" -lt 255 ] && {
293                 printf "%s:%s:%s:%s:%s:%02x" $1 $2 $3 $4 $5 $(( 0x$6 ^ $id ))
294                 return
295         }
296
297         off2=$(( (0x$6 + $id) / 0x100 ))
298         printf "%s:%s:%s:%s:%02x:%02x" \
299                 $1 $2 $3 $4 \
300                 $(( (0x$5 + $off2) % 0x100 )) \
301                 $(( (0x$6 + $id) % 0x100 ))
302 }
303
304 find_phy() {
305         [ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0
306         [ -n "$path" -a -d "/sys/devices/$path/ieee80211" ] && {
307                 phy="$(ls /sys/devices/$path/ieee80211 | grep -m 1 phy)"
308                 [ -n "$phy" ] && return 0
309         }
310         [ -n "$macaddr" ] && {
311                 for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
312                         grep -i -q "$macaddr" "/sys/class/ieee80211/${phy}/macaddress" && return 0
313                 done
314         }
315         return 1
316 }
317
318 mac80211_check_ap() {
319         has_ap=1
320 }
321
322 mac80211_prepare_vif() {
323         json_select config
324
325         json_get_vars ifname mode ssid wds powersave macaddr
326
327         [ -n "$ifname" ] || ifname="wlan${phy#phy}${if_idx:+-$if_idx}"
328         if_idx=$((${if_idx:-0} + 1))
329
330         set_default wds 0
331         set_default powersave 0
332
333         json_select ..
334
335         [ -n "$macaddr" ] || {
336                 macaddr="$(mac80211_generate_mac $phy)"
337                 macidx="$(($macidx + 1))"
338         }
339
340         json_add_object data
341         json_add_string ifname "$ifname"
342         json_close_object
343         json_select config
344
345         # It is far easier to delete and create the desired interface
346         case "$mode" in
347                 adhoc)
348                         iw phy "$phy" interface add "$ifname" type adhoc
349                 ;;
350                 ap)
351                         # Hostapd will handle recreating the interface and
352                         # subsequent virtual APs belonging to the same PHY
353                         if [ -n "$hostapd_ctrl" ]; then
354                                 type=bss
355                         else
356                                 type=interface
357                         fi
358
359                         mac80211_hostapd_setup_bss "$phy" "$ifname" "$macaddr" "$type" || return
360
361                         [ -n "$hostapd_ctrl" ] || {
362                                 iw phy "$phy" interface add "$ifname" type managed
363                                 hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd/$ifname}"
364                         }
365                 ;;
366                 mesh)
367                         json_get_vars key mesh_id
368                         if [ -n "$key" ]; then
369                                 iw phy "$phy" interface add "$ifname" type mp
370                         else
371                                 iw phy "$phy" interface add "$ifname" type mp mesh_id "$mesh_id"
372                         fi
373                 ;;
374                 monitor)
375                         iw phy "$phy" interface add "$ifname" type monitor
376                 ;;
377                 sta)
378                         local wdsflag=
379                         staidx="$(($staidx + 1))"
380                         [ "$wds" -gt 0 ] && wdsflag="4addr on"
381                         iw phy "$phy" interface add "$ifname" type managed $wdsflag
382                         [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
383                         iw "$ifname" set power_save "$powersave"
384                 ;;
385         esac
386
387         case "$mode" in
388                 monitor|mesh)
389                         [ "$auto_channel" -gt 0 ] || iw dev "$ifname" set channel "$channel" $htmode
390                 ;;
391         esac
392
393         if [ "$mode" != "ap" ]; then
394                 # ALL ap functionality will be passed to hostapd
395                 # All interfaces must have unique mac addresses
396                 # which can either be explicitly set in the device
397                 # section, or automatically generated
398                 ifconfig "$ifname" hw ether "$macaddr"
399         fi
400
401         json_select ..
402 }
403
404 mac80211_setup_supplicant() {
405         wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1
406         wpa_supplicant_add_network "$ifname"
407         wpa_supplicant_run "$ifname" ${hostapd_ctrl:+-H $hostapd_ctrl}
408 }
409
410 mac80211_setup_adhoc() {
411         json_get_vars bssid ssid key mcast_rate
412
413         keyspec=
414         [ "$auth_type" == "wep" ] && {
415                 set_default key 1
416                 case "$key" in
417                         [1234])
418                                 local idx
419                                 for idx in 1 2 3 4; do
420                                         json_get_var ikey "key$idx"
421
422                                         [ -n "$ikey" ] && {
423                                                 ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
424                                                 [ $idx -eq $key ] && ikey="d:$ikey"
425                                                 append keyspec "$ikey"
426                                         }
427                                 done
428                         ;;
429                         *)
430                                 append keyspec "d:0:$(prepare_key_wep "$key")"
431                         ;;
432                 esac
433         }
434
435         brstr=
436         for br in $basic_rate_list; do
437                 hostapd_add_rate brstr "$br"
438         done
439
440         mcval=
441         [ -n "$mcast_rate" ] && hostapd_add_rate mcval "$mcast_rate"
442
443         iw dev "$ifname" ibss join "$ssid" $freq $htmode fixed-freq $bssid \
444                 ${beacon_int:+beacon-interval $beacon_int} \
445                 ${brstr:+basic-rates $brstr} \
446                 ${mcval:+mcast-rate $mcval} \
447                 ${keyspec:+keys $keyspec}
448 }
449
450 mac80211_setup_vif() {
451         local name="$1"
452
453         json_select data
454         json_get_vars ifname
455         json_select ..
456
457         json_select config
458         json_get_vars mode
459         json_get_var vif_txpower txpower
460
461         ifconfig "$ifname" up || {
462                 wireless_setup_vif_failed IFUP_ERROR
463                 json_select ..
464                 return
465         }
466
467         set_default vif_txpower "$txpower"
468         [ -z "$vif_txpower" ] || iw dev "$ifname" set txpower fixed "${vif_txpower%%.*}00"
469
470         case "$mode" in
471                 mesh)
472                         for var in $MP_CONFIG_INT $MP_CONFIG_BOOL $MP_CONFIG_STRING; do
473                                 json_get_var mp_val "$var"
474                                 [ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$var" "$mp_val"
475                         done
476                         # todo: authsae
477                 ;;
478                 adhoc)
479                         wireless_vif_parse_encryption
480                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
481                                 mac80211_setup_supplicant || failed=1
482                         else
483                                 mac80211_setup_adhoc
484                         fi
485                 ;;
486                 sta)
487                         mac80211_setup_supplicant || failed=1
488                 ;;
489         esac
490
491         json_select ..
492         [ -n "$failed" ] || wireless_add_vif "$name" "$ifname"
493 }
494
495 get_freq() {
496         local phy="$1"
497         local chan="$2"
498         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
499 }
500
501 mac80211_interface_cleanup() {
502         local phy="$1"
503
504         for wdev in $(list_phy_interfaces "$phy"); do
505                 ifconfig "$wdev" down 2>/dev/null
506                 iw dev "$wdev" del
507         done
508 }
509
510 drv_mac80211_cleanup() {
511         hostapd_common_cleanup
512 }
513
514 drv_mac80211_setup() {
515         json_select config
516         json_get_vars \
517                 phy macaddr path \
518                 country chanbw distance \
519                 txpower antenna_gain \
520                 rxantenna txantenna \
521                 frag rts beacon_int
522         json_get_values basic_rate_list basic_rate
523         json_select ..
524
525         find_phy || {
526                 echo "Could not find PHY for device '$1'"
527                 wireless_set_retry 0
528                 return 1
529         }
530
531         wireless_set_data phy="$phy"
532         mac80211_interface_cleanup "$phy"
533
534         # convert channel to frequency
535         [ "$auto_channel" -gt 0 ] || freq="$(get_freq "$phy" "$channel")"
536
537         [ -n "$country" ] && {
538                 iw reg get | grep -q "^country $country:" || {
539                         iw reg set "$country"
540                         sleep 1
541                 }
542         }
543
544         hostapd_conf_file="/var/run/hostapd-$phy.conf"
545
546         no_ap=1
547         macidx=0
548         staidx=0
549
550         [ -n "$chanbw" ] && {
551                 for file in /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode; do
552                         [ -f "$file" ] && echo "$chanbw" > "$file"
553                 done
554         }
555
556         set_default rxantenna all
557         set_default txantenna all
558         set_default distance 0
559         set_default antenna_gain 0
560
561         iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
562         iw phy "$phy" set antenna_gain $antenna_gain
563         iw phy "$phy" set distance "$distance"
564
565         [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
566         [ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
567
568         has_ap=
569         hostapd_ctrl=
570         for_each_interface "ap" mac80211_check_ap
571
572         rm -f "$hostapd_conf_file"
573         [ -n "$has_ap" ] && mac80211_hostapd_setup_base "$phy"
574
575         for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
576         for_each_interface "ap" mac80211_prepare_vif
577
578         [ -n "$hostapd_ctrl" ] && {
579                 /usr/sbin/hostapd -P /var/run/wifi-$phy.pid -B "$hostapd_conf_file"
580                 ret="$?"
581                 wireless_add_process "$(cat /var/run/wifi-$phy.pid)" "/usr/sbin/hostapd" 1
582                 [ "$ret" != 0 ] && {
583                         wireless_setup_failed HOSTAPD_START_FAILED
584                         return
585                 }
586         }
587
588         for_each_interface "ap sta adhoc mesh monitor" mac80211_setup_vif
589
590         wireless_set_up
591 }
592
593 list_phy_interfaces() {
594         local phy="$1"
595         if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then
596                 ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null;
597         else
598                 ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g'
599         fi
600 }
601
602 drv_mac80211_teardown() {
603         wireless_process_kill_all
604
605         json_select data
606         json_get_vars phy
607         json_select ..
608
609         mac80211_interface_cleanup "$phy"
610 }
611
612 add_driver mac80211