mac80211: clean up vht capability processing
[openwrt/staging/hauke.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_add_capabilities() {
60 local __var="$1"; shift
61 local __mask="$1"; shift
62 local __out= oifs
63
64 oifs="$IFS"
65 IFS=:
66 for capab in "$@"; do
67 set -- $capab
68
69 [ "$(($4))" -gt 0 ] || continue
70 [ "$(($__mask & $2))" -eq "$((${3:-$2}))" ] || continue
71 __out="$__out[$1]"
72 done
73 IFS="$oifs"
74
75 export -n -- "$__var=$__out"
76 }
77
78 mac80211_hostapd_setup_base() {
79 local phy="$1"
80
81 json_select config
82
83 [ "$auto_channel" -gt 0 ] && channel=acs_survey
84
85 [ "$enable_ht" -gt 0 ] && {
86 json_get_vars noscan htmode
87 json_get_values ht_capab_list ht_capab
88
89 ieee80211n=1
90 ht_capab=
91 case "$htmode" in
92 HT20) ;;
93 HT40*|VHT40|VHT80|VHT160)
94 case "$(( ($channel / 4) % 2 ))" in
95 1) ht_capab="[HT40+]";;
96 0) ht_capab="[HT40-]";;
97 esac
98 ;;
99 *) ieee80211n= ;;
100 esac
101
102 [ -n "$ieee80211n" ] && {
103 append base_cfg "ieee80211n=1" "$N"
104
105 json_get_vars \
106 ldpc:1 \
107 greenfield:1 \
108 short_gi_20:1 \
109 short_gi_40:1 \
110 tx_stbc:1 \
111 rx_stbc:3 \
112 dsss_cck_40:1
113
114 ht_cap_mask=0
115 for cap in $(iw phy "$phy" info | grep 'Capabilities:' | cut -d: -f2); do
116 ht_cap_mask="$(($ht_cap_mask | $cap))"
117 done
118
119 cap_rx_stbc=$((($ht_cap_mask >> 8) & 3))
120 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
121 ht_cap_mask="$(( ($ht_cap_mask & ~(0x300)) | ($cap_rx_stbc << 8) ))"
122
123 mac80211_add_capabilities ht_capab_flags $ht_cap_mask \
124 LDPC:0x1::$ldpc \
125 GF:0x10::$greenfield \
126 SHORT-GI-20:0x20::$short_gi_20 \
127 SHORT-GI-40:0x40::$short_gi_40 \
128 TX-STBC:0x80::$max_tx_stbc \
129 RX-STBC1:0x300:0x100:1 \
130 RX-STBC12:0x300:0x200:1 \
131 RX-STBC123:0x300:0x300:1 \
132 DSSS_CCK-40:0x1000::$dsss_cck_40
133
134 [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab$ht_capab_flags" "$N"
135 }
136
137 # 802.11ac
138 enable_ac=0
139 idx="$channel"
140 case "$htmode" in
141 VHT40)
142 case "$(( ($channel / 4) % 2 ))" in
143 1) idx=$(($channel + 2));;
144 0) idx=$(($channel - 2));;
145 esac
146 enable_ac=1
147 append base_cfg "vht_oper_chwidth=0" "$N"
148 append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
149 ;;
150 VHT80)
151 case "$(( ($channel / 4) % 2 ))" in
152 1) idx=$(($channel + 6));;
153 2) idx=$(($channel + 2));;
154 3) idx=$(($channel - 2));;
155 0) idx=$(($channel - 6));;
156 esac
157 enable_ac=1
158 append base_cfg "vht_oper_chwidth=1" "$N"
159 append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
160 ;;
161 VHT160)
162 case "$channel" in
163 36|40|44|48|52|56|60|64) idx=50;;
164 100|104|108|112|116|120|124|128) idx=114;;
165 esac
166 enable_ac=1
167 append base_cfg "vht_oper_chwidth=2" "$N"
168 append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
169 ;;
170 esac
171
172 if [ "$enable_ac" != "0" ]; then
173 json_get_vars \
174 rxldpc:1 \
175 short_gi_80:1 \
176 short_gi_160:1 \
177 tx_stbc_2by1:1 \
178 su_beamformer:1 \
179 su_beamformee:1 \
180 mu_beamformer:1 \
181 mu_beamformee:1 \
182 vht_txop_ps:1 \
183 htc_vht:1 \
184 rx_antenna_pattern:1 \
185 tx_antenna_pattern:1 \
186 vht_max_mpdu:11454 \
187 rx_stbc:4 \
188 vht_link_adapt:3 \
189 vht160:2
190
191 append base_cfg "ieee80211ac=1" "$N"
192 vht_cap=0
193 for cap in $(iw phy "$phy" info | awk -F "[()]" '/VHT Capabilities/ { print $2 }'); do
194 vht_cap="$(($vht_cap | $cap))"
195 done
196
197 cap_rx_stbc=$((($vht_cap >> 8) & 7))
198 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
199 ht_cap_mask="$(( ($vht_cap & ~(0x700)) | ($cap_rx_stbc << 8) ))"
200
201 mac80211_add_capabilities vht_capab $vht_cap \
202 RXLDPC:0x10::$rxldpc \
203 SHORT-GI-80:0x20::$short_gi_80 \
204 SHORT-GI-160:0x40::$short_gi_160 \
205 TX-STBC-2BY1:0x80::$tx_stbc \
206 SU-BEAMFORMER:0x800::$su_beamformer \
207 SU-BEAMFORMEE:0x1000::$su_beamformee \
208 MU-BEAMFORMER:0x80000::$mu_beamformer \
209 MU-BEAMFORMEE:0x100000::$mu_beamformee \
210 VHT-TXOP-PS:0x200000::$vht_txop_ps \
211 HTC-VHT:0x400000::$htc_vht \
212 RX-ANTENNA-PATTERN:0x10000000::$rx_antenna_pattern \
213 TX-ANTENNA-PATTERN:0x20000000::$tx_antenna_pattern \
214 RX-STBC1:0x700:0x100:1 \
215 RX-STBC12:0x700:0x200:1 \
216 RX-STBC123:0x700:0x300:1 \
217 RX-STBC1234:0x700:0x400:1 \
218
219 # supported Channel widths
220 vht160_hw=0
221 [ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \
222 vht160_hw=1
223 [ "$(($vht_cap & 12))" -eq 8 -a 2 -le "$vht160" ] && \
224 vht160_hw=2
225 [ "$vht160_hw" = 1 ] && vht_capab="$vht_capab[VHT160]"
226 [ "$vht160_hw" = 2 ] && vht_capab="$vht_capab[VHT160-80PLUS80]"
227
228 # maximum MPDU length
229 vht_max_mpdu_hw=3895
230 [ "$(($vht_cap & 3))" -ge 1 -a 7991 -le "$vht_max_mpdu" ] && \
231 vht_max_mpdu_hw=7991
232 [ "$(($vht_cap & 3))" -ge 2 -a 11454 -le "$vht_max_mpdu" ] && \
233 vht_max_mpdu_hw=11454
234 [ "$vht_max_mpdu_hw" != 3895 ] && \
235 vht_capab="$vht_capab[MAX-MPDU-$vht_max_mpdu_hw]"
236
237 # whether or not the STA supports link adaptation using VHT variant
238 vht_link_adapt_hw=0
239 [ "$(($vht_cap & 201326592))" -ge 134217728 -a 2 -le "$vht_link_adapt" ] && \
240 vht_link_adapt_hw=2
241 [ "$(($vht_cap & 201326592))" -ge 201326592 -a 3 -le "$vht_link_adapt" ] && \
242 vht_link_adapt_hw=3
243 [ "$vht_link_adapt_hw" != 0 ] && \
244 vht_capab="$vht_capab[VHT-LINK-ADAPT-$vht_link_adapt_hw]"
245
246 [ -n "$vht_capab" ] && append base_cfg "vht_capab=$vht_capab" "$N"
247 fi
248 }
249
250 hostapd_prepare_device_config "$hostapd_conf_file" nl80211
251 cat >> "$hostapd_conf_file" <<EOF
252 ${channel:+channel=$channel}
253 ${noscan:+noscan=$noscan}
254 $base_cfg
255
256 EOF
257 json_select ..
258 }
259
260 mac80211_hostapd_setup_bss() {
261 local phy="$1"
262 local ifname="$2"
263 local macaddr="$3"
264 local type="$4"
265
266 hostapd_cfg=
267 append hostapd_cfg "$type=$ifname" "$N"
268
269 hostapd_set_bss_options hostapd_cfg "$vif" || return 1
270 json_get_vars wds dtim_period max_listen_int
271
272 set_default wds 0
273
274 [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
275 [ "$staidx" -gt 0 ] && append hostapd_cfg "start_disabled=1" "$N"
276
277 cat >> /var/run/hostapd-$phy.conf <<EOF
278 $hostapd_cfg
279 bssid=$macaddr
280 ${dtim_period:+dtim_period=$dtim_period}
281 ${max_listen_int:+max_listen_interval=$max_listen_int}
282 EOF
283 }
284
285 mac80211_generate_mac() {
286 local phy="$1"
287 local id="${macidx:-0}"
288
289 local ref="$(cat /sys/class/ieee80211/${phy}/macaddress)"
290 local mask="$(cat /sys/class/ieee80211/${phy}/address_mask)"
291
292 [ "$mask" = "00:00:00:00:00:00" ] && mask="ff:ff:ff:ff:ff:ff";
293 local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
294
295 local mask1=$1
296 local mask6=$6
297
298 local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
299
300 macidx=$(($id + 1))
301 [ "$((0x$mask1))" -gt 0 ] && {
302 b1="0x$1"
303 [ "$id" -gt 0 ] && \
304 b1=$(($b1 ^ ((($id - 1) << 2) | 0x2)))
305 printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6
306 return
307 }
308
309 [ "$((0x$mask6))" -lt 255 ] && {
310 printf "%s:%s:%s:%s:%s:%02x" $1 $2 $3 $4 $5 $(( 0x$6 ^ $id ))
311 return
312 }
313
314 off2=$(( (0x$6 + $id) / 0x100 ))
315 printf "%s:%s:%s:%s:%02x:%02x" \
316 $1 $2 $3 $4 \
317 $(( (0x$5 + $off2) % 0x100 )) \
318 $(( (0x$6 + $id) % 0x100 ))
319 }
320
321 find_phy() {
322 [ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0
323 [ -n "$path" -a -d "/sys/devices/$path/ieee80211" ] && {
324 phy="$(ls /sys/devices/$path/ieee80211 | grep -m 1 phy)"
325 [ -n "$phy" ] && return 0
326 }
327 [ -n "$macaddr" ] && {
328 for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
329 grep -i -q "$macaddr" "/sys/class/ieee80211/${phy}/macaddress" && return 0
330 done
331 }
332 return 1
333 }
334
335 mac80211_check_ap() {
336 has_ap=1
337 }
338
339 mac80211_prepare_vif() {
340 json_select config
341
342 json_get_vars ifname mode ssid wds powersave macaddr
343
344 [ -n "$ifname" ] || ifname="wlan${phy#phy}${if_idx:+-$if_idx}"
345 if_idx=$((${if_idx:-0} + 1))
346
347 set_default wds 0
348 set_default powersave 0
349
350 json_select ..
351
352 [ -n "$macaddr" ] || {
353 macaddr="$(mac80211_generate_mac $phy)"
354 macidx="$(($macidx + 1))"
355 }
356
357 json_add_object data
358 json_add_string ifname "$ifname"
359 json_close_object
360 json_select config
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 "$ifname" type adhoc
366 ;;
367 ap)
368 # Hostapd will handle recreating the interface and
369 # subsequent virtual APs belonging to the same PHY
370 if [ -n "$hostapd_ctrl" ]; then
371 type=bss
372 else
373 type=interface
374 fi
375
376 mac80211_hostapd_setup_bss "$phy" "$ifname" "$macaddr" "$type" || return
377
378 [ -n "$hostapd_ctrl" ] || {
379 iw phy "$phy" interface add "$ifname" type managed
380 hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd/$ifname}"
381 }
382 ;;
383 mesh)
384 json_get_vars key mesh_id
385 if [ -n "$key" ]; then
386 iw phy "$phy" interface add "$ifname" type mp
387 else
388 iw phy "$phy" interface add "$ifname" type mp mesh_id "$mesh_id"
389 fi
390 ;;
391 monitor)
392 iw phy "$phy" interface add "$ifname" type monitor
393 ;;
394 sta)
395 local wdsflag=
396 staidx="$(($staidx + 1))"
397 [ "$wds" -gt 0 ] && wdsflag="4addr on"
398 iw phy "$phy" interface add "$ifname" type managed $wdsflag
399 [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
400 iw "$ifname" set power_save "$powersave"
401 ;;
402 esac
403
404 case "$mode" in
405 monitor|mesh)
406 [ "$auto_channel" -gt 0 ] || iw dev "$ifname" set channel "$channel" $htmode
407 ;;
408 esac
409
410 if [ "$mode" != "ap" ]; then
411 # ALL ap functionality will be passed to hostapd
412 # All interfaces must have unique mac addresses
413 # which can either be explicitly set in the device
414 # section, or automatically generated
415 ifconfig "$ifname" hw ether "$macaddr"
416 fi
417
418 json_select ..
419 }
420
421 mac80211_setup_supplicant() {
422 wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1
423 wpa_supplicant_add_network "$ifname"
424 wpa_supplicant_run "$ifname" ${hostapd_ctrl:+-H $hostapd_ctrl}
425 }
426
427 mac80211_setup_adhoc() {
428 json_get_vars bssid ssid key mcast_rate
429
430 keyspec=
431 [ "$auth_type" == "wep" ] && {
432 set_default key 1
433 case "$key" in
434 [1234])
435 local idx
436 for idx in 1 2 3 4; do
437 json_get_var ikey "key$idx"
438
439 [ -n "$ikey" ] && {
440 ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
441 [ $idx -eq $key ] && ikey="d:$ikey"
442 append keyspec "$ikey"
443 }
444 done
445 ;;
446 *)
447 append keyspec "d:0:$(prepare_key_wep "$key")"
448 ;;
449 esac
450 }
451
452 brstr=
453 for br in $basic_rate_list; do
454 hostapd_add_rate brstr "$br"
455 done
456
457 mcval=
458 [ -n "$mcast_rate" ] && hostapd_add_rate mcval "$mcast_rate"
459
460 iw dev "$ifname" ibss join "$ssid" $freq $htmode fixed-freq $bssid \
461 ${beacon_int:+beacon-interval $beacon_int} \
462 ${brstr:+basic-rates $brstr} \
463 ${mcval:+mcast-rate $mcval} \
464 ${keyspec:+keys $keyspec}
465 }
466
467 mac80211_setup_vif() {
468 local name="$1"
469 local failed
470
471 json_select data
472 json_get_vars ifname
473 json_select ..
474
475 json_select config
476 json_get_vars mode
477 json_get_var vif_txpower txpower
478
479 ifconfig "$ifname" up || {
480 wireless_setup_vif_failed IFUP_ERROR
481 json_select ..
482 return
483 }
484
485 set_default vif_txpower "$txpower"
486 [ -z "$vif_txpower" ] || iw dev "$ifname" set txpower fixed "${vif_txpower%%.*}00"
487
488 case "$mode" in
489 mesh)
490 for var in $MP_CONFIG_INT $MP_CONFIG_BOOL $MP_CONFIG_STRING; do
491 json_get_var mp_val "$var"
492 [ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$var" "$mp_val"
493 done
494
495 # authsae
496 json_get_vars key
497 if [ -n "$key" ]; then
498 if [ -e "/lib/wifi/authsae.sh" ]; then
499 . /lib/wifi/authsae.sh
500 authsae_start_interface || failed=1
501 else
502 wireless_setup_vif_failed AUTHSAE_NOT_INSTALLED
503 json_select ..
504 return
505 fi
506 fi
507 ;;
508 adhoc)
509 wireless_vif_parse_encryption
510 if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
511 mac80211_setup_supplicant || failed=1
512 else
513 mac80211_setup_adhoc
514 fi
515 ;;
516 sta)
517 mac80211_setup_supplicant || failed=1
518 ;;
519 esac
520
521 json_select ..
522 [ -n "$failed" ] || wireless_add_vif "$name" "$ifname"
523 }
524
525 get_freq() {
526 local phy="$1"
527 local chan="$2"
528 iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
529 }
530
531 mac80211_interface_cleanup() {
532 local phy="$1"
533
534 for wdev in $(list_phy_interfaces "$phy"); do
535 ifconfig "$wdev" down 2>/dev/null
536 iw dev "$wdev" del
537 done
538 }
539
540 drv_mac80211_cleanup() {
541 hostapd_common_cleanup
542 }
543
544 drv_mac80211_setup() {
545 json_select config
546 json_get_vars \
547 phy macaddr path \
548 country chanbw distance \
549 txpower antenna_gain \
550 rxantenna txantenna \
551 frag rts beacon_int
552 json_get_values basic_rate_list basic_rate
553 json_select ..
554
555 find_phy || {
556 echo "Could not find PHY for device '$1'"
557 wireless_set_retry 0
558 return 1
559 }
560
561 wireless_set_data phy="$phy"
562 mac80211_interface_cleanup "$phy"
563
564 # convert channel to frequency
565 [ "$auto_channel" -gt 0 ] || freq="$(get_freq "$phy" "$channel")"
566
567 [ -n "$country" ] && {
568 iw reg get | grep -q "^country $country:" || {
569 iw reg set "$country"
570 sleep 1
571 }
572 }
573
574 hostapd_conf_file="/var/run/hostapd-$phy.conf"
575
576 no_ap=1
577 macidx=0
578 staidx=0
579
580 [ -n "$chanbw" ] && {
581 for file in /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode; do
582 [ -f "$file" ] && echo "$chanbw" > "$file"
583 done
584 }
585
586 set_default rxantenna all
587 set_default txantenna all
588 set_default distance 0
589 set_default antenna_gain 0
590
591 iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
592 iw phy "$phy" set antenna_gain $antenna_gain
593 iw phy "$phy" set distance "$distance"
594
595 [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
596 [ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
597
598 has_ap=
599 hostapd_ctrl=
600 for_each_interface "ap" mac80211_check_ap
601
602 rm -f "$hostapd_conf_file"
603 [ -n "$has_ap" ] && mac80211_hostapd_setup_base "$phy"
604
605 for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
606 for_each_interface "ap" mac80211_prepare_vif
607
608 [ -n "$hostapd_ctrl" ] && {
609 /usr/sbin/hostapd -P /var/run/wifi-$phy.pid -B "$hostapd_conf_file"
610 ret="$?"
611 wireless_add_process "$(cat /var/run/wifi-$phy.pid)" "/usr/sbin/hostapd" 1
612 [ "$ret" != 0 ] && {
613 wireless_setup_failed HOSTAPD_START_FAILED
614 return
615 }
616 }
617
618 for_each_interface "ap sta adhoc mesh monitor" mac80211_setup_vif
619
620 wireless_set_up
621 }
622
623 list_phy_interfaces() {
624 local phy="$1"
625 if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then
626 ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null;
627 else
628 ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g'
629 fi
630 }
631
632 drv_mac80211_teardown() {
633 wireless_process_kill_all
634
635 json_select data
636 json_get_vars phy
637 json_select ..
638
639 mac80211_interface_cleanup "$phy"
640 }
641
642 add_driver mac80211