8b85d2de9fca6e8aa494afe7bec9f37d41d9f246
[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_int $MP_CONFIG_INT
54         config_add_boolean $MP_CONFIG_BOOL
55         config_add_string $MP_CONFIG_STRING
56 }
57
58 mac80211_hostapd_setup_base() {
59         local phy="$1"
60
61         json_select config
62
63         [ "$auto_channel" -gt 0 ] && channel=acs_survey
64
65         [ "$enable_ht" -gt 0 ] && {
66                 json_get_vars noscan htmode
67                 json_get_values ht_capab_list ht_capab
68
69                 append base_cfg "ieee80211n=1" "$N"
70
71                 ht_capab=
72                 case "$htmode" in
73                         HT20|HT40-|HT40+) ht_capab="[$htmode]";;
74                         VHT40|VHT80|VHT160)
75                                 case "$channel" in
76                                         36|44|52|60|100|108|116|124|132|140|149|157) ht_capab="[HT40+]";;
77                                         40|48|56|64|104|112|120|128|136|144|153|161) ht_capab="[HT40-]";;
78                                 esac
79                                 ;;
80                 esac
81                 for cap in $ht_capab_list; do
82                         ht_capab="$ht_capab[$cap]"
83                 done
84
85                 [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
86
87                 # 802.11ac
88                 enable_ac=0
89                 idx="$channel"
90                 case "$htmode" in
91                         VHT40)
92                                 case "$channel" in
93                                         36|40) idx=38;;
94                                         44|48) idx=42;;
95                                         52|56) idx=54;;
96                                         60|64) idx=58;;
97                                         100|104) idx=102;;
98                                         108|112) idx=110;;
99                                         116|120) idx=118;;
100                                         124|128) idx=126;;
101                                         132|136) idx=134;;
102                                         140|144) idx=142;;
103                                         149|153) idx=151;;
104                                         157|161) idx=159;;
105                                 esac
106                                 enable_ac=1
107                                 append base_cfg "vht_oper_chwidth=0" "$N"
108                                 append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
109                         ;;
110                         VHT80)
111                                 case "$channel" in
112                                         36|40|44|48) idx=42;;
113                                         52|56|60|64) idx=58;;
114                                         100|104|108|112) idx=106;;
115                                         116|120|124|128) idx=122;;
116                                         132|136|140|144) idx=138;;
117                                         149|153|157|161) idx=155;;
118                                 esac
119                                 enable_ac=1
120                                 append base_cfg "vht_oper_chwidth=1" "$N"
121                                 append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
122                         ;;
123                         VHT160)
124                                 case "$channel" in
125                                         36|40|44|48|52|56|60|64) idx=50;;
126                                         100|104|108|112|116|120|124|128) idx=114;;
127                                 esac
128                                 enable_ac=1
129                                 append base_cfg "vht_oper_chwidth=2" "$N"
130                                 append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
131                         ;;
132                 esac
133
134                 if [ "$enable_ac" != "0" ]; then
135                         json_get_vars \
136                                 rxldpc:1 \
137                                 short_gi_80:1 \
138                                 short_gi_160:1 \
139                                 tx_stbc_2by1:1 \
140                                 su_beamformer:1 \
141                                 su_beamformee:1 \
142                                 mu_beamformer:1 \
143                                 mu_beamformee:1 \
144                                 vht_txop_ps:1 \
145                                 htc_vht:1 \
146                                 rx_antenna_pattern:1 \
147                                 tx_antenna_pattern:1 \
148                                 vht_max_mpdu:11454 \
149                                 vht_max_rx_stbc:4 \
150                                 vht_link_adapt:3 \
151                                 vht160:2
152
153                         append base_cfg "ieee80211ac=1" "$N"
154                         vht_capab=""
155                         vht_cap=0
156                         for cap in $(iw phy "$phy" info | awk -F "[()]" '/VHT Capabilities/ { print $2 }'); do
157                                 vht_cap="$(($vht_cap | $cap))"
158                         done
159
160                         # boolean
161                         [ "$((($vht_cap & 16) * $rxldpc))" -eq 16 ] && \
162                                 vht_capab="$vht_capab[RXLDPC]"
163                         [ "$((($vht_cap & 32) * $short_gi_80))" -eq 32 ] && \
164                                 vht_capab="$vht_capab[SHORT-GI-80]"
165                         [ "$((($vht_cap & 64) * $short_gi_160))" -eq 64 ] && \
166                                 vht_capab="$vht_capab[SHORT-GI-160]"
167                         [ "$((($vht_cap & 128) * $tx_stbc_2by1))" -eq 128 ] && \
168                                 vht_capab="$vht_capab[TX-STBC-2BY1]"
169                         [ "$((($vht_cap & 2048) * $su_beamformer))" -eq 2048 ] && \
170                                 vht_capab="$vht_capab[SU-BEAMFORMER]"
171                         [ "$((($vht_cap & 4096) * $su_beamformee))" -eq 4096 ] && \
172                                 vht_capab="$vht_capab[SU-BEAMFORMEE]"
173                         [ "$((($vht_cap & 524288) * $mu_beamformer))" -eq 524288 ] && \
174                                 vht_capab="$vht_capab[MU-BEAMFORMER]"
175                         [ "$((($vht_cap & 1048576) * $mu_beamformee))" -eq 1048576 ] && \
176                                 vht_capab="$vht_capab[MU-BEAMFORMEE]"
177                         [ "$((($vht_cap & 2097152) * $vht_txop_ps))" -eq 2097152 ] && \
178                                 vht_capab="$vht_capab[VHT-TXOP-PS]"
179                         [ "$((($vht_cap & 4194304) * $htc_vht))" -eq 4194304 ] && \
180                                 vht_capab="$vht_capab[HTC-VHT]"
181                         [ "$((($vht_cap & 268435456) * $rx_antenna_pattern))" -eq 268435456 ] && \
182                                 vht_capab="$vht_capab[RX-ANTENNA-PATTERN]"
183                         [ "$((($vht_cap & 536870912) * $tx_antenna_pattern))" -eq 536870912 ] && \
184                                 vht_capab="$vht_capab[TX-ANTENNA-PATTERN]"
185
186                         # supported Channel widths
187                         vht160_hw=0
188                         [ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \
189                                 vht160_hw=1
190                         [ "$(($vht_cap & 12))" -eq 8 -a 2 -le "$vht160" ] && \
191                                 vht160_hw=2
192                         [ "$vht160_hw" = 1 ] && vht_capab="$vht_capab[VHT160]"
193                         [ "$vht160_hw" = 2 ] && vht_capab="$vht_capab[VHT160-80PLUS80]"
194
195                         # maximum MPDU length
196                         vht_max_mpdu_hw=3895
197                         [ "$(($vht_cap & 3))" -ge 1 -a 7991 -le "$vht_max_mpdu" ] && \
198                                 vht_max_mpdu_hw=7991
199                         [ "$(($vht_cap & 3))" -ge 2 -a 11454 -le "$vht_max_mpdu" ] && \
200                                 vht_max_mpdu_hw=11454
201                         [ "$vht_max_mpdu_hw" != 3895 ] && \
202                                 vht_capab="$vht_capab[MAX-MPDU-$vht_max_mpdu_hw]"
203
204                         # support for the reception of PPDUs using STBC
205                         vht_max_rx_stbc_hw=0
206                         [ "$(($vht_cap & 1792))" -ge 256 -a 1 -le "$vht_max_rx_stbc" ] && \
207                                 vht_max_rx_stbc_hw=1
208                         [ "$(($vht_cap & 1792))" -ge 512 -a 2 -le "$vht_max_rx_stbc" ] && \
209                                 vht_max_rx_stbc_hw=2
210                         [ "$(($vht_cap & 1792))" -ge 768 -a 3 -le "$vht_max_rx_stbc" ] && \
211                                 vht_max_rx_stbc_hw=3
212                         [ "$(($vht_cap & 1792))" -ge 1024 -a 4 -le "$vht_max_rx_stbc" ] && \
213                                 vht_max_rx_stbc_hw=4
214                         [ "$vht_max_rx_stbc_hw" = 1 ] && vht_capab="$vht_capab[RX-STBC-1]"
215                         [ "$vht_max_rx_stbc_hw" = 2 ] && vht_capab="$vht_capab[RX-STBC-12]"
216                         [ "$vht_max_rx_stbc_hw" = 3 ] && vht_capab="$vht_capab[RX-STBC-123]"
217                         [ "$vht_max_rx_stbc_hw" = 4 ] && vht_capab="$vht_capab[RX-STBC-1234]"
218
219                         # whether or not the STA supports link adaptation using VHT variant
220                         vht_link_adapt_hw=0
221                         [ "$(($vht_cap & 201326592))" -ge 134217728 -a 2 -le "$vht_link_adapt" ] && \
222                                 vht_link_adapt_hw=2
223                         [ "$(($vht_cap & 201326592))" -ge 201326592 -a 3 -le "$vht_link_adapt" ] && \
224                                 vht_link_adapt_hw=3
225                         [ "$vht_link_adapt_hw" != 0 ] && \
226                                 vht_capab="$vht_capab[VHT-LINK-ADAPT-$vht_link_adapt_hw]"
227
228                         [ -n "$vht_capab" ] && append base_cfg "vht_capab=$vht_capab" "$N"
229                 fi
230         }
231
232         hostapd_prepare_device_config "$hostapd_conf_file" nl80211
233         cat >> "$hostapd_conf_file" <<EOF
234 ${channel:+channel=$channel}
235 ${noscan:+noscan=$noscan}
236 $base_cfg
237
238 EOF
239         json_select ..
240 }
241
242 mac80211_hostapd_setup_bss() {
243         local phy="$1"
244         local ifname="$2"
245         local macaddr="$3"
246         local type="$4"
247
248         hostapd_cfg=
249         append hostapd_cfg "$type=$ifname" "$N"
250
251         hostapd_set_bss_options hostapd_cfg "$vif" || return 1
252         json_get_vars wds dtim_period max_listen_int
253
254         set_default wds 0
255
256         [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
257         [ "$staidx" -gt 0 ] && append hostapd_cfg "start_disabled=1" "$N"
258
259         cat >> /var/run/hostapd-$phy.conf <<EOF
260 $hostapd_cfg
261 bssid=$macaddr
262 ${dtim_period:+dtim_period=$dtim_period}
263 ${max_listen_int:+max_listen_interval=$max_listen_int}
264 EOF
265 }
266
267 mac80211_generate_mac() {
268         local phy="$1"
269         local id="${macidx:-0}"
270
271         local ref="$(cat /sys/class/ieee80211/${phy}/macaddress)"
272         local mask="$(cat /sys/class/ieee80211/${phy}/address_mask)"
273
274         [ "$mask" = "00:00:00:00:00:00" ] && mask="ff:ff:ff:ff:ff:ff";
275         local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
276
277         local mask1=$1
278         local mask6=$6
279
280         local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
281
282         macidx=$(($id + 1))
283         [ "$((0x$mask1))" -gt 0 ] && {
284                 b1="0x$1"
285                 [ "$id" -gt 0 ] && \
286                         b1=$(($b1 ^ ((($id - 1) << 2) | 0x2)))
287                 printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6
288                 return
289         }
290
291         [ "$((0x$mask6))" -lt 255 ] && {
292                 printf "%s:%s:%s:%s:%s:%02x" $1 $2 $3 $4 $5 $(( 0x$6 ^ $id ))
293                 return
294         }
295
296         off2=$(( (0x$6 + $id) / 0x100 ))
297         printf "%s:%s:%s:%s:%02x:%02x" \
298                 $1 $2 $3 $4 \
299                 $(( (0x$5 + $off2) % 0x100 )) \
300                 $(( (0x$6 + $id) % 0x100 ))
301 }
302
303 find_phy() {
304         [ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0
305         [ -n "$path" -a -d "/sys/devices/$path/ieee80211" ] && {
306                 phy="$(ls /sys/devices/$path/ieee80211 | grep -m 1 phy)"
307                 [ -n "$phy" ] && return 0
308         }
309         [ -n "$macaddr" ] && {
310                 for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
311                         grep -i -q "$macaddr" "/sys/class/ieee80211/${phy}/macaddress" && return 0
312                 done
313         }
314         return 1
315 }
316
317 mac80211_check_ap() {
318         has_ap=1
319 }
320
321 mac80211_prepare_vif() {
322         json_select config
323
324         json_get_vars ifname mode ssid wds powersave macaddr
325
326         [ -n "$ifname" ] || ifname="wlan${phy#phy}${if_idx:+-$if_idx}"
327         if_idx=$((${if_idx:-0} + 1))
328
329         set_default wds 0
330         set_default powersave 0
331
332         json_select ..
333
334         [ -n "$macaddr" ] || {
335                 macaddr="$(mac80211_generate_mac $phy)"
336                 macidx="$(($macidx + 1))"
337         }
338
339         json_add_object data
340         json_add_string ifname "$ifname"
341         json_close_object
342         json_select config
343
344         # It is far easier to delete and create the desired interface
345         case "$mode" in
346                 adhoc)
347                         iw phy "$phy" interface add "$ifname" type adhoc
348                 ;;
349                 ap)
350                         # Hostapd will handle recreating the interface and
351                         # subsequent virtual APs belonging to the same PHY
352                         if [ -n "$hostapd_ctrl" ]; then
353                                 type=bss
354                         else
355                                 type=interface
356                         fi
357
358                         mac80211_hostapd_setup_bss "$phy" "$ifname" "$macaddr" "$type" || return
359
360                         [ -n "$hostapd_ctrl" ] || {
361                                 iw phy "$phy" interface add "$ifname" type managed
362                                 hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd/$ifname}"
363                         }
364                 ;;
365                 mesh)
366                         json_get_vars key mesh_id
367                         if [ -n "$key" ]; then
368                                 iw phy "$phy" interface add "$ifname" type mp
369                         else
370                                 iw phy "$phy" interface add "$ifname" type mp mesh_id "$mesh_id"
371                         fi
372                 ;;
373                 monitor)
374                         iw phy "$phy" interface add "$ifname" type monitor
375                 ;;
376                 sta)
377                         local wdsflag=
378                         staidx="$(($staidx + 1))"
379                         [ "$wds" -gt 0 ] && wdsflag="4addr on"
380                         iw phy "$phy" interface add "$ifname" type managed $wdsflag
381                         [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
382                         iw "$ifname" set power_save "$powersave"
383                 ;;
384         esac
385
386         case "$mode" in
387                 monitor|mesh)
388                         [ "$auto_channel" -gt 0 ] || iw dev "$ifname" set channel "$channel" $htmode
389                 ;;
390         esac
391
392         if [ "$mode" != "ap" ]; then
393                 # ALL ap functionality will be passed to hostapd
394                 # All interfaces must have unique mac addresses
395                 # which can either be explicitly set in the device
396                 # section, or automatically generated
397                 ifconfig "$ifname" hw ether "$macaddr"
398         fi
399
400         json_select ..
401 }
402
403 mac80211_setup_supplicant() {
404         wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1
405         wpa_supplicant_add_network "$ifname"
406         wpa_supplicant_run "$ifname" ${hostapd_ctrl:+-H $hostapd_ctrl}
407 }
408
409 mac80211_setup_adhoc() {
410         json_get_vars bssid ssid key mcast_rate
411
412         keyspec=
413         [ "$auth_type" == "wep" ] && {
414                 set_default key 1
415                 case "$key" in
416                         [1234])
417                                 local idx
418                                 for idx in 1 2 3 4; do
419                                         json_get_var ikey "key$idx"
420
421                                         [ -n "$ikey" ] && {
422                                                 ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
423                                                 [ $idx -eq $key ] && ikey="d:$ikey"
424                                                 append keyspec "$ikey"
425                                         }
426                                 done
427                         ;;
428                         *)
429                                 append keyspec "d:0:$(prepare_key_wep "$key")"
430                         ;;
431                 esac
432         }
433
434         brstr=
435         for br in $basic_rate_list; do
436                 hostapd_add_rate brstr "$br"
437         done
438
439         mcval=
440         [ -n "$mcast_rate" ] && hostapd_add_rate mcval "$mcast_rate"
441
442         iw dev "$ifname" ibss join "$ssid" $freq $htmode fixed-freq $bssid \
443                 ${beacon_int:+beacon-interval $beacon_int} \
444                 ${brstr:+basic-rates $brstr} \
445                 ${mcval:+mcast-rate $mcval} \
446                 ${keyspec:+keys $keyspec}
447 }
448
449 mac80211_setup_vif() {
450         local name="$1"
451
452         json_select data
453         json_get_vars ifname
454         json_select ..
455
456         json_select config
457         json_get_vars mode
458         json_get_var vif_txpower txpower
459
460         ifconfig "$ifname" up || {
461                 wireless_setup_vif_failed IFUP_ERROR
462                 json_select ..
463                 return
464         }
465
466         set_default vif_txpower "$txpower"
467         [ -z "$vif_txpower" ] || iw dev "$ifname" set txpower fixed "${vif_txpower%%.*}00"
468
469         case "$mode" in
470                 mesh)
471                         for var in $MP_CONFIG_INT $MP_CONFIG_BOOL $MP_CONFIG_STRING; do
472                                 json_get_var mp_val "$var"
473                                 [ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$var" "$mp_val"
474                         done
475                         # todo: authsae
476                 ;;
477                 adhoc)
478                         wireless_vif_parse_encryption
479                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
480                                 mac80211_setup_supplicant || failed=1
481                         else
482                                 mac80211_setup_adhoc
483                         fi
484                 ;;
485                 sta)
486                         mac80211_setup_supplicant || failed=1
487                 ;;
488         esac
489
490         json_select ..
491         [ -n "$failed" ] || wireless_add_vif "$name" "$ifname"
492 }
493
494 get_freq() {
495         local phy="$1"
496         local chan="$2"
497         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
498 }
499
500 mac80211_interface_cleanup() {
501         local phy="$1"
502
503         for wdev in $(list_phy_interfaces "$phy"); do
504                 ifconfig "$wdev" down 2>/dev/null
505                 iw dev "$wdev" del
506         done
507 }
508
509 drv_mac80211_cleanup() {
510         hostapd_common_cleanup
511 }
512
513 drv_mac80211_setup() {
514         json_select config
515         json_get_vars \
516                 phy macaddr path \
517                 country chanbw distance \
518                 txpower antenna_gain \
519                 rxantenna txantenna \
520                 frag rts beacon_int
521         json_get_values basic_rate_list basic_rate
522         json_select ..
523
524         find_phy || {
525                 echo "Could not find PHY for device '$1'"
526                 wireless_set_retry 0
527                 return 1
528         }
529
530         wireless_set_data phy="$phy"
531         mac80211_interface_cleanup "$phy"
532
533         # convert channel to frequency
534         [ "$auto_channel" -gt 0 ] || freq="$(get_freq "$phy" "$channel")"
535
536         [ -n "$country" ] && {
537                 iw reg get | grep -q "^country $country:" || {
538                         iw reg set "$country"
539                         sleep 1
540                 }
541         }
542
543         hostapd_conf_file="/var/run/hostapd-$phy.conf"
544
545         no_ap=1
546         macidx=0
547         staidx=0
548
549         [ -n "$chanbw" ] && {
550                 for file in /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode; do
551                         [ -f "$file" ] && echo "$chanbw" > "$file"
552                 done
553         }
554
555         set_default rxantenna all
556         set_default txantenna all
557         set_default distance 0
558         set_default antenna_gain 0
559
560         iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
561         iw phy "$phy" set antenna_gain $antenna_gain
562         iw phy "$phy" set distance "$distance"
563
564         [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
565         [ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
566
567         has_ap=
568         hostapd_ctrl=
569         for_each_interface "ap" mac80211_check_ap
570
571         rm -f "$hostapd_conf_file"
572         [ -n "$has_ap" ] && mac80211_hostapd_setup_base "$phy"
573
574         for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
575         for_each_interface "ap" mac80211_prepare_vif
576
577         [ -n "$hostapd_ctrl" ] && {
578                 /usr/sbin/hostapd -P /var/run/wifi-$phy.pid -B "$hostapd_conf_file"
579                 ret="$?"
580                 wireless_add_process "$(cat /var/run/wifi-$phy.pid)" "/usr/sbin/hostapd" 1
581                 [ "$ret" != 0 ] && {
582                         wireless_setup_failed HOSTAPD_START_FAILED
583                         return
584                 }
585         }
586
587         for_each_interface "ap sta adhoc mesh monitor" mac80211_setup_vif
588
589         wireless_set_up
590 }
591
592 list_phy_interfaces() {
593         local phy="$1"
594         if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then
595                 ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null;
596         else
597                 ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g'
598         fi
599 }
600
601 drv_mac80211_teardown() {
602         wireless_process_kill_all
603
604         json_select data
605         json_get_vars phy
606         json_select ..
607
608         mac80211_interface_cleanup "$phy"
609 }
610
611 add_driver mac80211