Root/package/madwifi/files/lib/wifi/madwifi.sh

1#!/bin/sh
2append DRIVERS "atheros"
3
4find_atheros_phy() {
5    local device="$1"
6
7    local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
8    config_get phy "$device" phy
9    [ -z "$phy" -a -n "$macaddr" ] && {
10        cd /proc/sys/dev
11        for phy in $(ls -d wifi* 2>&-); do
12            [ "$macaddr" = "$(cat /sys/class/net/${phy}/address)" ] || continue
13            config_set "$device" phy "$phy"
14            break
15        done
16        config_get phy "$device" phy
17    }
18    [ -n "$phy" -a -d "/proc/sys/dev/$phy" ] || {
19        echo "phy for wifi device $1 not found"
20        return 1
21    }
22    [ -z "$macaddr" ] && {
23        config_set "$device" macaddr "$(cat /sys/class/net/${phy}/address)"
24    }
25    return 0
26}
27
28scan_atheros() {
29    local device="$1"
30    local wds
31    local adhoc ahdemo sta ap monitor disabled
32
33    [ ${device%[0-9]} = "wifi" ] && config_set "$device" phy "$device"
34
35    local ifidx=0
36    
37    config_get vifs "$device" vifs
38    for vif in $vifs; do
39        config_get_bool disabled "$vif" disabled 0
40        [ $disabled = 0 ] || continue
41
42        local vifname
43        [ $ifidx -gt 0 ] && vifname="ath${device#radio}-$ifidx" || vifname="ath${device#radio}"
44
45        config_get ifname "$vif" ifname
46        config_set "$vif" ifname "${ifname:-$vifname}"
47        
48        config_get mode "$vif" mode
49        case "$mode" in
50            adhoc|ahdemo|sta|ap|monitor)
51                append $mode "$vif"
52            ;;
53            wds)
54                config_get ssid "$vif" ssid
55                [ -z "$ssid" ] && continue
56
57                config_set "$vif" wds 1
58                config_set "$vif" mode sta
59                mode="sta"
60                addr="$ssid"
61                ${addr:+append $mode "$vif"}
62            ;;
63            *) echo "$device($vif): Invalid mode, ignored."; continue;;
64        esac
65
66        ifidx=$(($ifidx + 1))
67    done
68
69    case "${adhoc:+1}:${sta:+1}:${ap:+1}" in
70        # valid mode combinations
71        1::) wds="";;
72        1::1);;
73        :1:1)config_set "$device" nosbeacon 1;; # AP+STA, can't use beacon timers for STA
74        :1:);;
75        ::1);;
76        ::);;
77        *) echo "$device: Invalid mode combination in config"; return 1;;
78    esac
79
80    config_set "$device" vifs "${sta:+$sta }${ap:+$ap }${adhoc:+$adhoc }${ahdemo:+$ahdemo }${wds:+$wds }${monitor:+$monitor}"
81}
82
83
84disable_atheros() (
85    local device="$1"
86
87    find_atheros_phy "$device" || return 0
88    config_get phy "$device" phy
89
90    set_wifi_down "$device"
91
92    include /lib/network
93    cd /proc/sys/net
94    for dev in *; do
95        grep "$phy" "$dev/%parent" >/dev/null 2>/dev/null && {
96            [ -f "/var/run/wifi-${dev}.pid" ] &&
97                kill "$(cat "/var/run/wifi-${dev}.pid")"
98            ifconfig "$dev" down
99            unbridge "$dev"
100            wlanconfig "$dev" destroy
101        }
102    done
103    return 0
104)
105
106enable_atheros() {
107    local device="$1"
108
109    find_atheros_phy "$device" || return 0
110    config_get phy "$device" phy
111
112    config_get regdomain "$device" regdomain
113    [ -n "$regdomain" ] && echo "$regdomain" > /proc/sys/dev/$phy/regdomain
114
115    config_get country "$device" country
116    case "$country" in
117        [A-Za-z]*) country=`grep -i "$country" /lib/wifi/madwifi_countrycodes.txt |cut -d " " -f 2`;;
118        [0-9]*) ;;
119        *) country="" ;;
120    esac
121    [ -n "$country" ] && echo "$country" > /proc/sys/dev/$phy/countrycode
122
123    config_get_bool outdoor "$device" outdoor "0"
124    echo "$outdoor" > /proc/sys/dev/$phy/outdoor
125
126    config_get channel "$device" channel
127    config_get vifs "$device" vifs
128    config_get txpower "$device" txpower
129
130    [ auto = "$channel" ] && channel=0
131
132    config_get_bool antdiv "$device" diversity
133    config_get antrx "$device" rxantenna
134    config_get anttx "$device" txantenna
135    config_get_bool softled "$device" softled
136    config_get antenna "$device" antenna
137
138    devname="$(cat /proc/sys/dev/$phy/dev_name)"
139    local antgpio=
140    local invert=
141    case "$devname" in
142        NanoStation2) antgpio=7; invert=1;;
143        NanoStation5) antgpio=1; invert=1;;
144        "NanoStation Loco2") antgpio=2;;
145        "NanoStation Loco5")
146            case "$antenna" in
147                horizontal) antdiv=0; anttx=1; antrx=1;;
148                vertical) antdiv=0; anttx=2; antrx=2;;
149                *) antdiv=1; anttx=0; antrx=0;;
150            esac
151        ;;
152    esac
153    if [ -n "$invert" ]; then
154        _set="clear"
155        _clear="set"
156    else
157        _set="set"
158        _clear="clear"
159    fi
160    if [ -n "$antgpio" ]; then
161        softled=0
162        case "$devname" in
163            "NanoStation Loco2")
164                antdiv=0
165                antrx=1
166                anttx=1
167                case "$antenna" in
168                    horizontal) gpioval=0;;
169                    *) gpioval=1;;
170                esac
171            ;;
172            *)
173                case "$antenna" in
174                    external) antdiv=0; antrx=1; anttx=1; gpioval=1;;
175                    horizontal) antdiv=0; antrx=1; anttx=1; gpioval=0;;
176                    vertical) antdiv=0; antrx=2; anttx=2; gpioval=0;;
177                    auto) antdiv=1; antrx=0; anttx=0; gpioval=0;;
178                esac
179            ;;
180        esac
181
182        [ -x "$(which gpioctl 2>/dev/null)" ] || antenna=
183        gpioctl "dirout" "$antgpio" >/dev/null 2>&1
184        case "$gpioval" in
185            0)
186                gpioctl "$_clear" "$antgpio" >/dev/null 2>&1
187            ;;
188            1)
189                gpioctl "$_set" "$antgpio" >/dev/null 2>&1
190            ;;
191        esac
192    fi
193
194    [ -n "$antdiv" ] && sysctl -w dev."$phy".diversity="$antdiv" >&-
195    [ -n "$antrx" ] && sysctl -w dev."$phy".rxantenna="$antrx" >&-
196    [ -n "$anttx" ] && sysctl -w dev."$phy".txantenna="$anttx" >&-
197    [ -n "$softled" ] && sysctl -w dev."$phy".softled="$softled" >&-
198
199    config_get distance "$device" distance
200    [ -n "$distance" ] && sysctl -w dev."$phy".distance="$distance" >&-
201
202    for vif in $vifs; do
203        local start_hostapd= vif_txpower= nosbeacon=
204        config_get ifname "$vif" ifname
205        config_get enc "$vif" encryption
206        config_get eap_type "$vif" eap_type
207        config_get mode "$vif" mode
208
209        case "$mode" in
210            sta) config_get_bool nosbeacon "$device" nosbeacon;;
211            adhoc) config_get_bool nosbeacon "$vif" sw_merge 1;;
212        esac
213
214        [ "$nosbeacon" = 1 ] || nosbeacon=""
215        ifname=$(wlanconfig "$ifname" create nounit wlandev "$phy" wlanmode "$mode" ${nosbeacon:+nosbeacon})
216        [ $? -ne 0 ] && {
217            echo "enable_atheros($device): Failed to set up $mode vif $ifname" >&2
218            continue
219        }
220        config_set "$vif" ifname "$ifname"
221
222        config_get hwmode "$device" hwmode
223        [ -z "$hwmode" ] && config_get hwmode "$device" mode
224
225        pureg=0
226        case "$hwmode" in
227            *b) hwmode=11b;;
228            *bg) hwmode=11g;;
229            *g) hwmode=11g; pureg=1;;
230            *gdt) hwmode=11gdt;;
231            *a) hwmode=11a;;
232            *adt) hwmode=11adt;;
233            *ast) hwmode=11ast;;
234            *fh) hwmode=fh;;
235            *) hwmode=auto;;
236        esac
237        iwpriv "$ifname" mode "$hwmode"
238        iwpriv "$ifname" pureg "$pureg"
239
240        iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
241
242        config_get_bool hidden "$vif" hidden 0
243        iwpriv "$ifname" hide_ssid "$hidden"
244
245        config_get ff "$vif" ff
246        if [ -n "$ff" ]; then
247            iwpriv "$ifname" ff "$ff"
248        fi
249
250        config_get wds "$vif" wds
251        case "$wds" in
252            1|on|enabled) wds=1;;
253            *) wds=0;;
254        esac
255        iwpriv "$ifname" wds "$wds" >/dev/null 2>&1
256
257        [ "$mode" = ap -a "$wds" = 1 ] && {
258            config_get_bool wdssep "$vif" wdssep 1
259            [ -n "$wdssep" ] && iwpriv "$ifname" wdssep "$wdssep"
260        }
261
262        case "$enc" in
263            wep*)
264                case "$enc" in
265                    *shared*) iwpriv "$ifname" authmode 2;;
266                    *) iwpriv "$ifname" authmode 1;;
267                esac
268                for idx in 1 2 3 4; do
269                    config_get key "$vif" "key${idx}"
270                    iwconfig "$ifname" enc "[$idx]" "${key:-off}"
271                done
272                config_get key "$vif" key
273                key="${key:-1}"
274                case "$key" in
275                    [1234]) iwconfig "$ifname" enc "[$key]";;
276                    *) iwconfig "$ifname" enc "$key";;
277                esac
278            ;;
279            psk*|wpa*)
280                start_hostapd=1
281                config_get key "$vif" key
282            ;;
283        esac
284
285        case "$mode" in
286            sta|adhoc|ahdemo)
287                config_get addr "$vif" bssid
288                [ -z "$addr" ] || {
289                    iwconfig "$ifname" ap "$addr"
290                }
291            ;;
292        esac
293
294        config_get_bool uapsd "$vif" uapsd 0
295        iwpriv "$ifname" uapsd "$uapsd"
296
297        config_get_bool bgscan "$vif" bgscan
298        [ -n "$bgscan" ] && iwpriv "$ifname" bgscan "$bgscan"
299
300        config_get rate "$vif" rate
301        [ -n "$rate" ] && iwconfig "$ifname" rate "${rate%%.*}"
302
303        config_get mcast_rate "$vif" mcast_rate
304        [ -n "$mcast_rate" ] && iwpriv "$ifname" mcast_rate "${mcast_rate%%.*}"
305
306        config_get frag "$vif" frag
307        [ -n "$frag" ] && iwconfig "$ifname" frag "${frag%%.*}"
308
309        config_get rts "$vif" rts
310        [ -n "$rts" ] && iwconfig "$ifname" rts "${rts%%.*}"
311
312        config_get_bool comp "$vif" compression 0
313        iwpriv "$ifname" compression "$comp" >/dev/null 2>&1
314
315        config_get minrate "$vif" minrate
316        [ -n "$minrate" ] && iwpriv "$ifname" minrate "$minrate"
317
318        config_get maxrate "$vif" maxrate
319        [ -n "$maxrate" ] && iwpriv "$ifname" maxrate "$maxrate"
320
321        config_get_bool burst "$vif" bursting
322        [ -n "$burst" ] && iwpriv "$ifname" burst "$burst"
323
324        config_get_bool wmm "$vif" wmm
325        [ -n "$wmm" ] && iwpriv "$ifname" wmm "$wmm"
326
327        config_get_bool xr "$vif" xr
328        [ -n "$xr" ] && iwpriv "$ifname" xr "$xr"
329
330        config_get_bool ar "$vif" ar
331        [ -n "$ar" ] && iwpriv "$ifname" ar "$ar"
332
333        config_get_bool beacon_power "$vif" beacon_power
334        [ -n "$beacon_power" ] && iwpriv "$ifname" beacon_pwr "$beacon_power"
335
336        config_get_bool doth "$vif" doth 0
337        [ -n "$doth" ] && iwpriv "$ifname" doth "$doth"
338
339        config_get_bool probereq "$vif" probereq
340        [ -n "$probereq" ] && iwpriv "$ifname" probereq "$probereq"
341
342        config_get maclist "$vif" maclist
343        [ -n "$maclist" ] && {
344            # flush MAC list
345            iwpriv "$ifname" maccmd 3
346            for mac in $maclist; do
347                iwpriv "$ifname" addmac "$mac"
348            done
349        }
350
351        config_get macpolicy "$vif" macpolicy
352        case "$macpolicy" in
353            allow)
354                iwpriv "$ifname" maccmd 1
355            ;;
356            deny)
357                iwpriv "$ifname" maccmd 2
358            ;;
359            *)
360                # default deny policy if mac list exists
361                [ -n "$maclist" ] && iwpriv "$ifname" maccmd 2
362            ;;
363        esac
364
365        ifconfig "$ifname" up
366
367        local net_cfg bridge
368        net_cfg="$(find_net_config "$vif")"
369        [ -z "$net_cfg" ] || {
370            bridge="$(bridge_interface "$net_cfg")"
371            config_set "$vif" bridge "$bridge"
372            start_net "$ifname" "$net_cfg"
373        }
374
375        config_get ssid "$vif" ssid
376        [ -n "$ssid" ] && {
377            iwconfig "$ifname" essid on
378            iwconfig "$ifname" essid ${ssid:+-- }"$ssid"
379        }
380
381        set_wifi_up "$vif" "$ifname"
382
383        # TXPower settings only work if device is up already
384        # while atheros hardware theoretically is capable of per-vif (even per-packet) txpower
385        # adjustment it does not work with the current atheros hal/madwifi driver
386
387        config_get vif_txpower "$vif" txpower
388        # use vif_txpower (from wifi-iface) instead of txpower (from wifi-device) if
389        # the latter doesn't exist
390        txpower="${txpower:-$vif_txpower}"
391        [ -z "$txpower" ] || iwconfig "$ifname" txpower "${txpower%%.*}"
392
393        case "$mode" in
394            ap)
395                config_get_bool isolate "$vif" isolate 0
396                iwpriv "$ifname" ap_bridge "$((isolate^1))"
397
398                if [ -n "$start_hostapd" ] && eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
399                    hostapd_setup_vif "$vif" madwifi || {
400                        echo "enable_atheros($device): Failed to set up hostapd for interface $ifname" >&2
401                        # make sure this wifi interface won't accidentally stay open without encryption
402                        ifconfig "$ifname" down
403                        wlanconfig "$ifname" destroy
404                        continue
405                    }
406                fi
407            ;;
408            wds|sta)
409                if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
410                    wpa_supplicant_setup_vif "$vif" madwifi || {
411                        echo "enable_atheros($device): Failed to set up wpa_supplicant for interface $ifname" >&2
412                        ifconfig "$ifname" down
413                        wlanconfig "$ifname" destroy
414                        continue
415                    }
416                fi
417            ;;
418        esac
419    done
420}
421
422check_atheros_device() {
423    [ ${1%[0-9]} = "wifi" ] && config_set "$1" phy "$1"
424    config_get phy "$1" phy
425    [ -z "$phy" ] && {
426        find_atheros_phy "$1" >/dev/null || return 0
427        config_get phy "$1" phy
428    }
429    [ "$phy" = "$dev" ] && found=1
430}
431
432
433detect_atheros() {
434    devidx=0
435    config_load wireless
436    while :; do
437        config_get type "radio$devidx" type
438        [ -n "$type" ] || break
439        devidx=$(($devidx + 1))
440    done
441    cd /proc/sys/dev
442    [ -d ath ] || return
443    for dev in $(ls -d wifi* 2>&-); do
444        found=0
445        config_foreach check_atheros_device wifi-device
446        [ "$found" -gt 0 ] && continue
447
448        devname="$(cat /proc/sys/dev/$dev/dev_name)"
449        case "$devname" in
450            "NanoStation Loco2")
451                EXTRA_DEV="
452# Ubiquiti NanoStation Loco2 features
453    option antenna vertical # (horizontal|vertical)
454"
455            ;;
456            "NanoStation Loco5")
457                EXTRA_DEV="
458# Ubiquiti NanoStation Loco5 features
459    option antenna auto # (auto|horizontal|vertical)
460"
461            ;;
462            NanoStation*)
463                EXTRA_DEV="
464# Ubiquiti NanoStation features
465    option antenna auto # (auto|horizontal|vertical|external)
466"
467            ;;
468        esac
469
470        cat <<EOF
471config wifi-device radio$devidx
472    option type atheros
473    option channel auto
474    option macaddr $(cat /sys/class/net/${dev}/address)
475$EXTRA_DEV
476    # REMOVE THIS LINE TO ENABLE WIFI:
477    option disabled 1
478
479config wifi-iface
480    option device radio$devidx
481    option network lan
482    option mode ap
483    option ssid OpenWrt
484    option encryption none
485
486EOF
487    devidx=$(($devidx + 1))
488    done
489}
490

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