AA: mac80211: backport package from trunk r39886
[openwrt/svn-archive/archive.git] / package / mac80211 / files / lib / wifi / mac80211.sh
1 #!/bin/sh
2 append DRIVERS "mac80211"
3
4 mac80211_hostapd_setup_base() {
5 local phy="$1"
6 local ifname="$2"
7
8 cfgfile="/var/run/hostapd-$phy.conf"
9
10 config_get device "$vif" device
11 config_get country "$device" country
12 config_get hwmode "$device" hwmode
13 config_get channel "$device" channel
14 config_get beacon_int "$device" beacon_int
15 config_get basic_rate_list "$device" basic_rate
16 config_get_bool noscan "$device" noscan
17
18 hostapd_set_log_options base_cfg "$device"
19
20 [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
21
22 hostapd_channel=$channel
23 [ "$channel" = auto -o "$channel" = 0 ] && hostapd_channel=acs_survey
24
25 [ -n "$hwmode" ] && {
26 config_get hwmode_11n "$device" hwmode_11n
27 [ -n "$hwmode_11n" ] && {
28 hwmode="$hwmode_11n"
29 append base_cfg "ieee80211n=1" "$N"
30 config_get htmode "$device" htmode
31 config_get ht_capab_list "$device" ht_capab
32 case "$htmode" in
33 HT20|HT40+|HT40-) ht_capab="[$htmode]";;
34 *)ht_capab=;;
35 esac
36 for cap in $ht_capab_list; do
37 ht_capab="$ht_capab[$cap]"
38 done
39 [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
40 }
41 }
42
43 local country_ie=0
44 [ -n "$country" ] && country_ie=1
45 config_get_bool country_ie "$device" country_ie "$country_ie"
46 [ "$country_ie" -gt 0 ] && append base_cfg "ieee80211d=1" "$N"
47
48 local br brval brstr
49 [ -n "$basic_rate_list" ] && {
50 for br in $basic_rate_list; do
51 brval="$(($br / 100))"
52 [ -n "$brstr" ] && brstr="$brstr "
53 brstr="$brstr$brval"
54 done
55 }
56
57 cat >> "$cfgfile" <<EOF
58 ctrl_interface=/var/run/hostapd-$phy
59 driver=nl80211
60 wmm_ac_bk_cwmin=4
61 wmm_ac_bk_cwmax=10
62 wmm_ac_bk_aifs=7
63 wmm_ac_bk_txop_limit=0
64 wmm_ac_bk_acm=0
65 wmm_ac_be_aifs=3
66 wmm_ac_be_cwmin=4
67 wmm_ac_be_cwmax=10
68 wmm_ac_be_txop_limit=0
69 wmm_ac_be_acm=0
70 wmm_ac_vi_aifs=2
71 wmm_ac_vi_cwmin=3
72 wmm_ac_vi_cwmax=4
73 wmm_ac_vi_txop_limit=94
74 wmm_ac_vi_acm=0
75 wmm_ac_vo_aifs=2
76 wmm_ac_vo_cwmin=2
77 wmm_ac_vo_cwmax=3
78 wmm_ac_vo_txop_limit=47
79 wmm_ac_vo_acm=0
80 tx_queue_data3_aifs=7
81 tx_queue_data3_cwmin=15
82 tx_queue_data3_cwmax=1023
83 tx_queue_data3_burst=0
84 tx_queue_data2_aifs=3
85 tx_queue_data2_cwmin=15
86 tx_queue_data2_cwmax=63
87 tx_queue_data2_burst=0
88 tx_queue_data1_aifs=1
89 tx_queue_data1_cwmin=7
90 tx_queue_data1_cwmax=15
91 tx_queue_data1_burst=3.0
92 tx_queue_data0_aifs=1
93 tx_queue_data0_cwmin=3
94 tx_queue_data0_cwmax=7
95 tx_queue_data0_burst=1.5
96 ${hwmode:+hw_mode=$hwmode}
97 ${hostapd_channel:+channel=$hostapd_channel}
98 ${beacon_int:+beacon_int=$beacon_int}
99 ${country:+country_code=$country}
100 ${noscan:+noscan=$noscan}
101 ${brstr:+basic_rates=$brstr}
102 $base_cfg
103
104 EOF
105 }
106
107 mac80211_hostapd_setup_bss() {
108 local phy="$1"
109 local vif="$2"
110 local staidx="$3"
111
112 hostapd_cfg=
113 cfgfile="/var/run/hostapd-$phy.conf"
114 config_get ifname "$vif" ifname
115
116 if [ -f "$cfgfile" ]; then
117 append hostapd_cfg "bss=$ifname" "$N"
118 else
119 mac80211_hostapd_setup_base "$phy" "$ifname"
120 append hostapd_cfg "interface=$ifname" "$N"
121 fi
122
123 local net_cfg bridge
124 net_cfg="$(find_net_config "$vif")"
125 [ -z "$net_cfg" ] || bridge="$(bridge_interface "$net_cfg")"
126 config_set "$vif" bridge "$bridge"
127
128 hostapd_set_bss_options hostapd_cfg "$vif"
129
130 config_get_bool wds "$vif" wds 0
131 [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
132
133 [ "$staidx" -gt 0 ] && append hostapd_cfg "start_disabled=1" "$N"
134
135 local macaddr hidden maxassoc wmm
136 config_get macaddr "$vif" macaddr
137 config_get maxassoc "$vif" maxassoc
138 config_get dtim_period "$vif" dtim_period
139 config_get max_listen_int "$vif" max_listen_int
140 config_get_bool hidden "$vif" hidden 0
141 config_get_bool wmm "$vif" wmm 1
142 cat >> /var/run/hostapd-$phy.conf <<EOF
143 $hostapd_cfg
144 wmm_enabled=$wmm
145 bssid=$macaddr
146 ignore_broadcast_ssid=$hidden
147 ${dtim_period:+dtim_period=$dtim_period}
148 ${max_listen_int:+max_listen_interval=$max_listen_int}
149 ${maxassoc:+max_num_sta=$maxassoc}
150 EOF
151 }
152
153 mac80211_start_vif() {
154 local vif="$1"
155 local ifname="$2"
156
157 local net_cfg
158 net_cfg="$(find_net_config "$vif")"
159 [ -z "$net_cfg" ] || start_net "$ifname" "$net_cfg"
160
161 set_wifi_up "$vif" "$ifname"
162 }
163
164 lookup_phy() {
165 [ -n "$phy" ] && {
166 [ -d /sys/class/ieee80211/$phy ] && return
167 }
168
169 local devpath
170 config_get devpath "$device" path
171 [ -n "$devpath" -a -d "/sys/devices/$devpath/ieee80211" ] && {
172 phy="$(ls /sys/devices/$devpath/ieee80211 | grep -m 1 phy)"
173 [ -n "$phy" ] && return
174 }
175
176 local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
177 [ -n "$macaddr" ] && {
178 for _phy in $(ls /sys/class/ieee80211 2>/dev/null); do
179 [ "$macaddr" = "$(cat /sys/class/ieee80211/${_phy}/macaddress)" ] || continue
180 phy="$_phy"
181 return
182 done
183 }
184 phy=
185 return
186 }
187
188 find_mac80211_phy() {
189 local device="$1"
190
191 config_get phy "$device" phy
192 lookup_phy
193 [ -n "$phy" -a -d "/sys/class/ieee80211/$phy" ] || {
194 echo "PHY for wifi device $1 not found"
195 return 1
196 }
197 config_set "$device" phy "$phy"
198
199 config_get macaddr "$device" macaddr
200 [ -z "$macaddr" ] && {
201 config_set "$device" macaddr "$(cat /sys/class/ieee80211/${phy}/macaddress)"
202 }
203
204 return 0
205 }
206
207 scan_mac80211() {
208 local device="$1"
209 local adhoc sta ap monitor mesh disabled
210
211 config_get vifs "$device" vifs
212 for vif in $vifs; do
213 config_get_bool disabled "$vif" disabled 0
214 [ $disabled = 0 ] || continue
215
216 config_get mode "$vif" mode
217 case "$mode" in
218 adhoc|sta|ap|monitor|mesh)
219 append $mode "$vif"
220 ;;
221 *) echo "$device($vif): Invalid mode, ignored."; continue;;
222 esac
223 done
224
225 config_set "$device" vifs "${ap:+$ap }${adhoc:+$adhoc }${sta:+$sta }${monitor:+$monitor }${mesh:+$mesh}"
226 }
227
228 list_phy_interfaces() {
229 local phy="$1"
230 if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then
231 ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null;
232 else
233 ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g'
234 fi
235 }
236
237 disable_mac80211() (
238 local device="$1"
239
240 find_mac80211_phy "$device" || return 0
241 config_get phy "$device" phy
242
243 set_wifi_down "$device"
244 # kill all running hostapd and wpa_supplicant processes that
245 # are running on atheros/mac80211 vifs
246 for pid in `pidof hostapd`; do
247 grep -E "$phy" /proc/$pid/cmdline >/dev/null && \
248 kill $pid
249 done
250
251 include /lib/network
252 for wdev in $(list_phy_interfaces "$phy"); do
253 [ -f "/var/run/$wdev.pid" ] && kill $(cat /var/run/$wdev.pid) >&/dev/null 2>&1
254 for pid in `pidof wpa_supplicant meshd-nl80211`; do
255 grep "$wdev" /proc/$pid/cmdline >/dev/null && \
256 kill $pid
257 done
258 ifconfig "$wdev" down 2>/dev/null
259 unbridge "$dev"
260 iw dev "$wdev" del
261 done
262
263 return 0
264 )
265
266 get_freq() {
267 local phy="$1"
268 local chan="$2"
269 iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
270 }
271
272 mac80211_generate_mac() {
273 local id="$1"
274 local ref="$2"
275 local mask="$3"
276
277 [ "$mask" = "00:00:00:00:00:00" ] && mask="ff:ff:ff:ff:ff:ff";
278 local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
279
280 local mask1=$1
281 local mask6=$6
282
283 local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
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 enable_mac80211() {
305 local device="$1"
306 config_get channel "$device" channel
307 config_get vifs "$device" vifs
308 config_get txpower "$device" txpower
309 config_get country "$device" country
310 config_get distance "$device" distance
311 config_get txantenna "$device" txantenna all
312 config_get rxantenna "$device" rxantenna all
313 config_get antenna_gain "$device" antenna_gain 0
314 config_get frag "$device" frag
315 config_get rts "$device" rts
316 find_mac80211_phy "$device" || return 0
317 config_get phy "$device" phy
318 local i=0
319 local macidx=0
320 local apidx=0
321 local staidx=0
322 fixed=""
323 local hostapd_ctrl=""
324
325 [ -n "$country" ] && {
326 iw reg get | grep -q "^country $country:" || {
327 iw reg set "$country"
328 sleep 1
329 }
330 }
331
332 config_get chanbw "$device" chanbw
333 [ -n "$chanbw" -a -d /sys/kernel/debug/ieee80211/$phy/ath9k ] && echo "$chanbw" > /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw
334 [ -n "$chanbw" -a -d /sys/kernel/debug/ieee80211/$phy/ath5k ] && echo "$chanbw" > /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode
335
336 [ "$channel" = "auto" -o "$channel" = "0" ] || {
337 fixed=1
338 }
339
340 iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
341 iw phy "$phy" set antenna_gain $antenna_gain
342
343 [ -n "$distance" ] && iw phy "$phy" set distance "$distance"
344 [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
345 [ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
346
347 export channel fixed
348 # convert channel to frequency
349 local freq="$(get_freq "$phy" "${fixed:+$channel}")"
350
351 wifi_fixup_hwmode "$device" "g"
352 for vif in $vifs; do
353 config_get ifname "$vif" ifname
354 [ -n "$ifname" ] || {
355 [ $i -gt 0 ] && ifname="wlan${phy#phy}-$i" || ifname="wlan${phy#phy}"
356 }
357 config_set "$vif" ifname "$ifname"
358
359 config_get mode "$vif" mode
360 config_get ssid "$vif" ssid
361
362 # It is far easier to delete and create the desired interface
363 case "$mode" in
364 adhoc)
365 iw phy "$phy" interface add "$ifname" type adhoc
366 ;;
367 ap)
368 # Hostapd will handle recreating the interface and
369 # it's accompanying monitor
370 apidx="$(($apidx + 1))"
371 [ "$apidx" -gt 1 ] || iw phy "$phy" interface add "$ifname" type managed
372 ;;
373 mesh)
374 config_get key "$vif" key ""
375 if [ -n "$key" ]; then
376 iw phy "$phy" interface add "$ifname" type mp
377 else
378 config_get mesh_id "$vif" mesh_id
379 iw phy "$phy" interface add "$ifname" type mp mesh_id "$mesh_id"
380 fi
381 ;;
382 monitor)
383 iw phy "$phy" interface add "$ifname" type monitor
384 ;;
385 sta)
386 local wdsflag
387 staidx="$(($staidx + 1))"
388 config_get_bool wds "$vif" wds 0
389 [ "$wds" -gt 0 ] && wdsflag="4addr on"
390 iw phy "$phy" interface add "$ifname" type managed $wdsflag
391 config_get_bool powersave "$vif" powersave 0
392 [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
393 iw "$ifname" set power_save "$powersave"
394 ;;
395 esac
396
397 # All interfaces must have unique mac addresses
398 # which can either be explicitly set in the device
399 # section, or automatically generated
400 config_get macaddr "$device" macaddr
401 config_get vif_mac "$vif" macaddr
402 [ -n "$vif_mac" ] || {
403 vif_mac="$(mac80211_generate_mac $macidx $macaddr $(cat /sys/class/ieee80211/${phy}/address_mask))"
404 macidx="$(($macidx + 1))"
405 }
406 [ "$mode" = "ap" ] || ifconfig "$ifname" hw ether "$vif_mac"
407 config_set "$vif" macaddr "$vif_mac"
408
409 # !! ap !!
410 #
411 # ALL ap functionality will be passed to hostapd
412 #
413 # !! station !!
414 #
415 # ALL station functionality will be passed to wpa_supplicant
416 #
417 if [ ! "$mode" = "ap" ]; then
418 # We attempt to set the channel for all interfaces, although
419 # mac80211 may not support it or the driver might not yet
420 # for ap mode this is handled by hostapd
421 config_get htmode "$device" htmode
422 case "$htmode" in
423 HT20|HT40+|HT40-) ;;
424 *) htmode= ;;
425 esac
426 [ -n "$fixed" -a -n "$channel" ] && iw dev "$ifname" set channel "$channel" $htmode
427 fi
428
429 i=$(($i + 1))
430 done
431
432 local start_hostapd=
433 rm -f /var/run/hostapd-$phy.conf
434 for vif in $vifs; do
435 config_get mode "$vif" mode
436 case "$mode" in
437 ap)
438 mac80211_hostapd_setup_bss "$phy" "$vif" "$staidx"
439 start_hostapd=1
440 ;;
441 mesh)
442 config_get key "$vif" key ""
443 [ -n "$key" ] && authsae_start_interface "$device" "$vif"
444 ;;
445 esac
446 done
447
448 [ -n "$start_hostapd" ] && {
449 hostapd -P /var/run/wifi-$phy.pid -B /var/run/hostapd-$phy.conf || {
450 echo "Failed to start hostapd for $phy"
451 return
452 }
453 sleep 2
454
455 for vif in $vifs; do
456 config_get mode "$vif" mode
457 config_get ifname "$vif" ifname
458 [ "$mode" = "ap" ] || continue
459 hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd-$phy/$ifname}"
460 mac80211_start_vif "$vif" "$ifname"
461 done
462 }
463
464 for vif in $vifs; do
465 config_get mode "$vif" mode
466 config_get ifname "$vif" ifname
467 [ "$mode" = "ap" ] || ifconfig "$ifname" up
468
469 config_get vif_txpower "$vif" txpower
470 # use vif_txpower (from wifi-iface) to override txpower (from
471 # wifi-device) if the latter doesn't exist
472 txpower="${txpower:-$vif_txpower}"
473 [ -z "$txpower" ] || iw dev "$ifname" set txpower fixed "${txpower%%.*}00"
474
475 case "$mode" in
476 adhoc)
477 config_get bssid "$vif" bssid
478 config_get ssid "$vif" ssid
479 config_get beacon_int "$device" beacon_int
480 config_get basic_rate_list "$device" basic_rate
481 config_get encryption "$vif" encryption
482 config_get key "$vif" key 1
483 config_get mcast_rate "$vif" mcast_rate
484 config_get htmode "$device" htmode
485 case "$htmode" in
486 HT20|HT40+|HT40-) ;;
487 *) htmode= ;;
488 esac
489
490
491 local keyspec=""
492 [ "$encryption" == "psk" -o "$encryption" == "psk2" ] && {
493 if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
494 wpa_supplicant_setup_vif "$vif" nl80211 "${hostapd_ctrl:+-H $hostapd_ctrl}" $freq $htmode || {
495 echo "enable_mac80211($device): Failed to set up wpa_supplicant for interface $ifname" >&2
496 # make sure this wifi interface won't accidentally stay open without encryption
497 ifconfig "$ifname" down
498 }
499 mac80211_start_vif "$vif" "$ifname"
500 continue
501 fi
502 }
503
504 [ "$encryption" == "wep" ] && {
505 case "$key" in
506 [1234])
507 local idx
508 for idx in 1 2 3 4; do
509 local ikey
510 config_get ikey "$vif" "key$idx"
511
512 [ -n "$ikey" ] && {
513 ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
514 [ $idx -eq $key ] && ikey="d:$ikey"
515 append keyspec "$ikey"
516 }
517 done
518 ;;
519 *) append keyspec "d:0:$(prepare_key_wep "$key")" ;;
520 esac
521 }
522
523 local br brval brsub brstr
524 [ -n "$basic_rate_list" ] && {
525 for br in $basic_rate_list; do
526 brval="$(($br / 1000))"
527 brsub="$((($br / 100) % 10))"
528 [ "$brsub" -gt 0 ] && brval="$brval.$brsub"
529 [ -n "$brstr" ] && brstr="$brstr,"
530 brstr="$brstr$brval"
531 done
532 }
533
534 local mcval=""
535 [ -n "$mcast_rate" ] && {
536 mcval="$(($mcast_rate / 1000))"
537 mcsub="$(( ($mcast_rate / 100) % 10 ))"
538 [ "$mcsub" -gt 0 ] && mcval="$mcval.$mcsub"
539 }
540
541 iw dev "$ifname" ibss join "$ssid" $freq $htmode \
542 ${fixed:+fixed-freq} $bssid \
543 ${beacon_int:+beacon-interval $beacon_int} \
544 ${brstr:+basic-rates $brstr} \
545 ${mcval:+mcast-rate $mcval} \
546 ${keyspec:+keys $keyspec}
547 ;;
548 mesh)
549 mp_list="mesh_retry_timeout mesh_confirm_timeout mesh_holding_timeout mesh_max_peer_links
550 mesh_max_retries mesh_ttl mesh_element_ttl mesh_auto_open_plinks mesh_hwmp_max_preq_retries
551 mesh_path_refresh_time mesh_min_discovery_timeout mesh_hwmp_active_path_timeout
552 mesh_hwmp_preq_min_interval mesh_hwmp_net_diameter_traversal_time mesh_hwmp_rootmode
553 mesh_hwmp_rann_interval mesh_gate_announcements mesh_fwding mesh_sync_offset_max_neighor
554 mesh_rssi_threshold mesh_hwmp_active_path_to_root_timeout mesh_hwmp_root_interval
555 mesh_hwmp_confirmation_interval mesh_power_mode mesh_awake_window"
556 for mp in $mp_list
557 do
558 config_get mp_val "$vif" "$mp" ""
559 [ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$mp" "$mp_val"
560 done
561 ;;
562 sta)
563 if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
564 wpa_supplicant_setup_vif "$vif" nl80211 "${hostapd_ctrl:+-H $hostapd_ctrl}" || {
565 echo "enable_mac80211($device): Failed to set up wpa_supplicant for interface $ifname" >&2
566 # make sure this wifi interface won't accidentally stay open without encryption
567 ifconfig "$ifname" down
568 continue
569 }
570 fi
571 ;;
572 esac
573 [ "$mode" = "ap" ] || mac80211_start_vif "$vif" "$ifname"
574 done
575
576 }
577
578
579 check_mac80211_device() {
580 config_get phy "$1" phy
581 [ -z "$phy" ] && {
582 find_mac80211_phy "$1" >/dev/null || return 0
583 config_get phy "$1" phy
584 }
585 [ "$phy" = "$dev" ] && found=1
586 }
587
588 detect_mac80211() {
589 devidx=0
590 config_load wireless
591 while :; do
592 config_get type "radio$devidx" type
593 [ -n "$type" ] || break
594 devidx=$(($devidx + 1))
595 done
596 for dev in $(ls /sys/class/ieee80211); do
597 found=0
598 config_foreach check_mac80211_device wifi-device
599 [ "$found" -gt 0 ] && continue
600
601 mode_11n=""
602 mode_band="g"
603 channel="11"
604 ht_cap=0
605 for cap in $(iw phy "$dev" info | grep 'Capabilities:' | cut -d: -f2); do
606 ht_cap="$(($ht_cap | $cap))"
607 done
608 ht_capab="";
609 [ "$ht_cap" -gt 0 ] && {
610 mode_11n="n"
611 append ht_capab " option htmode HT20" "$N"
612
613 list=" list ht_capab"
614 [ "$(($ht_cap & 1))" -eq 1 ] && append ht_capab "$list LDPC" "$N"
615 [ "$(($ht_cap & 16))" -eq 16 ] && append ht_capab "$list GF" "$N"
616 [ "$(($ht_cap & 32))" -eq 32 ] && append ht_capab "$list SHORT-GI-20" "$N"
617 [ "$(($ht_cap & 64))" -eq 64 ] && append ht_capab "$list SHORT-GI-40" "$N"
618 [ "$(($ht_cap & 128))" -eq 128 ] && append ht_capab "$list TX-STBC" "$N"
619 [ "$(($ht_cap & 768))" -eq 256 ] && append ht_capab "$list RX-STBC1" "$N"
620 [ "$(($ht_cap & 768))" -eq 512 ] && append ht_capab "$list RX-STBC12" "$N"
621 [ "$(($ht_cap & 768))" -eq 768 ] && append ht_capab "$list RX-STBC123" "$N"
622 [ "$(($ht_cap & 4096))" -eq 4096 ] && append ht_capab "$list DSSS_CCK-40" "$N"
623 }
624 iw phy "$dev" info | grep -q '2412 MHz' || { mode_band="a"; channel="36"; }
625
626 if [ -x /usr/bin/readlink ]; then
627 path="$(readlink -f /sys/class/ieee80211/${dev}/device)"
628 path="${path##/sys/devices/}"
629 dev_id=" option path '$path'"
630 else
631 dev_id=" option macaddr $(cat /sys/class/ieee80211/${dev}/macaddress)"
632 fi
633
634 cat <<EOF
635 config wifi-device radio$devidx
636 option type mac80211
637 option channel ${channel}
638 option hwmode 11${mode_11n}${mode_band}
639 $dev_id
640 $ht_capab
641 # REMOVE THIS LINE TO ENABLE WIFI:
642 option disabled 1
643
644 config wifi-iface
645 option device radio$devidx
646 option network lan
647 option mode ap
648 option ssid OpenWrt
649 option encryption none
650
651 EOF
652 devidx=$(($devidx + 1))
653 done
654 }
655