[package] allow connection to a prefered bssid (#4252)
[openwrt-10.03/.git] / package / madwifi / files / lib / wifi / madwifi.sh
1 #!/bin/sh
2 append DRIVERS "atheros"
3
4 scan_atheros() {
5         local device="$1"
6         local wds
7         local adhoc sta ap
8         
9         config_get vifs "$device" vifs
10         for vif in $vifs; do
11         
12                 config_get ifname "$vif" ifname
13                 config_set "$vif" ifname "${ifname:-ath}"
14                 
15                 config_get mode "$vif" mode
16                 case "$mode" in
17                         adhoc|ahdemo|sta|ap|monitor)
18                                 append $mode "$vif"
19                         ;;
20                         wds)
21                                 config_get ssid "$vif" ssid
22                                 [ -z "$ssid" ] && continue
23
24                                 config_set "$vif" wds 1
25                                 config_set "$vif" mode sta
26                                 mode="sta"
27                                 addr="$ssid"
28                                 ${addr:+append $mode "$vif"}
29                         ;;
30                         *) echo "$device($vif): Invalid mode, ignored."; continue;;
31                 esac
32         done
33
34         case "${adhoc:+1}:${sta:+1}:${ap:+1}" in
35                 # valid mode combinations
36                 1::) wds="";;
37                 1::1);;
38                 :1:1)config_set "$device" nosbeacon 1;; # AP+STA, can't use beacon timers for STA
39                 :1:);;
40                 ::1);;
41                 ::);;
42                 *) echo "$device: Invalid mode combination in config"; return 1;;
43         esac
44
45         config_set "$device" vifs "${sta:+$sta }${ap:+$ap }${adhoc:+$adhoc }${ahdemo:+$ahdemo }${wds:+$wds }${monitor:+$monitor}"
46 }
47
48
49 disable_atheros() (
50         local device="$1"
51
52         set_wifi_down "$device"
53         
54         include /lib/network
55         cd /proc/sys/net
56         for dev in *; do
57                 grep "$device" "$dev/%parent" >/dev/null 2>/dev/null && {
58                         [ -f "/var/run/wifi-${dev}.pid" ] &&
59                                 kill "$(cat "/var/run/wifi-${dev}.pid")"
60                         ifconfig "$dev" down
61                         unbridge "$dev"
62                         wlanconfig "$dev" destroy
63                 }
64         done
65         return 0
66 )
67
68 enable_atheros() {
69         local device="$1"
70         # Can only set the country code to one setting for the entire system. The last country code is the one that will be applied.
71         config_get country "$device" country
72         [ -z "$country" ] && country="0"
73         local cc="0"
74         [ -e /proc/sys/dev/$device/countrycode ] && cc="$(cat /proc/sys/dev/$device/countrycode)"
75         if [ ! "$cc" = "$country" ] ; then
76                 rmmod ath_pci
77                 insmod ath_pci countrycode=$country
78         fi
79         config_get channel "$device" channel
80         config_get vifs "$device" vifs
81         config_get txpower "$device" txpower
82
83         [ auto = "$channel" ] && channel=0
84
85         local first=1
86         for vif in $vifs; do
87                 local start_hostapd vif_txpower
88                 nosbeacon=
89                 config_get ifname "$vif" ifname
90                 config_get enc "$vif" encryption
91                 config_get eap_type "$vif" eap_type
92                 config_get mode "$vif" mode
93                 
94                 case "$mode" in
95                         sta) config_get nosbeacon "$device" nosbeacon;;
96                         adhoc) config_get nosbeacon "$vif" sw_merge;;
97                 esac
98                 
99                 config_get ifname "$vif" ifname
100                 ifname=$(wlanconfig "$ifname" create wlandev "$device" wlanmode "$mode" ${nosbeacon:+nosbeacon})
101                 [ $? -ne 0 ] && {
102                         echo "enable_atheros($device): Failed to set up $mode vif $ifname" >&2
103                         continue
104                 }
105                 config_set "$vif" ifname "$ifname"
106
107                 # only need to change freq band and channel on the first vif
108                 config_get hwmode "$device" hwmode
109                 [ -z "$hwmode" ] && config_get hwmode "$device" mode
110
111                 pureg=0
112                 case "$hwmode" in
113                         *b) hwmode=11b;;
114                         *bg) hwmode=11g;;
115                         *g) hwmode=11g; pureg=1;;
116                         *gdt) hwmode=11gdt;;
117                         *a) hwmode=11a;;
118                         *adt) hwmode=11adt;;
119                         *ast) hwmode=11ast;;
120                         *fh) hwmode=fh;;
121                         *) hwmode=auto;;
122                 esac
123                 iwpriv "$ifname" pureg "$pureg"
124
125                 [ "$first" = 1 ] && {
126                         iwpriv "$ifname" mode "$hwmode"
127                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null 
128                 }
129         
130                 config_get_bool hidden "$vif" hidden 0
131                 iwpriv "$ifname" hide_ssid "$hidden"
132
133                 config_get ff "$vif" ff
134                 if [ -n "$ff" ]; then
135                         iwpriv "$ifname" ff "$ff"
136                 fi
137
138                 config_get wds "$vif" wds
139                 case "$wds" in
140                         1|on|enabled) wds=1;;
141                         *) wds=0;;
142                 esac
143                 iwpriv "$ifname" wds "$wds"
144
145                 [ "$mode" = ap -a "$wds" = 1 ] && {
146                         config_get_bool wdssep "$vif" wdssep 1
147                         [ -n "$wdssep" ] && iwpriv "$ifname" wdssep "$wdssep"
148                 }
149
150                 case "$enc" in
151                         WEP|wep)
152                                 for idx in 1 2 3 4; do
153                                         config_get key "$vif" "key${idx}"
154                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
155                                 done
156                                 config_get key "$vif" key
157                                 key="${key:-1}"
158                                 case "$key" in
159                                         [1234]) iwconfig "$ifname" enc "[$key]";;
160                                         *) iwconfig "$ifname" enc "$key";;
161                                 esac
162                         ;;
163                         psk*|wpa*)
164                                 start_hostapd=1
165                                 config_get key "$vif" key
166                         ;;
167                 esac
168
169                 case "$mode" in
170                         sta|adhoc|ahdemo)
171                                 config_get addr "$vif" bssid
172                                 [ -z "$addr" ] || { 
173                                         iwconfig "$ifname" ap "$addr"
174                                 }
175                         ;;
176                 esac
177                 config_get ssid "$vif" ssid
178
179                 config_get_bool bgscan "$vif" bgscan
180                 [ -n "$bgscan" ] && iwpriv "$ifname" bgscan "$bgscan"
181
182                 config_get_bool antdiv "$device" diversity
183                 config_get antrx "$device" rxantenna
184                 config_get anttx "$device" txantenna
185                 config_get_bool softled "$device" softled 1
186
187                 devname="$(cat /proc/sys/dev/$device/dev_name)"
188                 antgpio=
189                 case "$devname" in
190                         NanoStation2) antgpio=7;;
191                         NanoStation5) antgpio=1;;
192                 esac
193                 if [ -n "$antgpio" ]; then
194                         softled=0
195                         config_get antenna "$device" antenna
196                         case "$antenna" in
197                                 external) antdiv=0; antrx=1; anttx=1 ;;
198                                 horizontal) antdiv=0; antrx=1; anttx=1 ;;
199                                 vertical) antdiv=0; antrx=2; anttx=2 ;;
200                                 auto) antdiv=1; antrx=0; anttx=0 ;;
201                         esac
202                         
203                         [ -x "$(which gpioctl 2>/dev/null)" ] || antenna=
204                         case "$antenna" in
205                                 horizontal|vertical|auto)
206                                         gpioctl "dirout" "$antgpio" >/dev/null 2>&1
207                                         gpioctl "set" "$antgpio" >/dev/null 2>&1
208                                 ;;
209                                 external)
210                                         gpioctl "dirout" "$antgpio" >/dev/null 2>&1
211                                         gpioctl "clear" "$antgpio" >/dev/null 2>&1
212                                 ;;
213                         esac
214                 fi
215
216                 [ -n "$antdiv" ] && sysctl -w dev."$device".diversity="$antdiv" >&-
217                 [ -n "$antrx" ] && sysctl -w dev."$device".rxantenna="$antrx" >&-
218                 [ -n "$anttx" ] && sysctl -w dev."$device".txantenna="$anttx" >&-
219                 [ -n "$softled" ] && sysctl -w dev."$device".softled="$softled" >&-
220
221                 config_get distance "$device" distance
222                 [ -n "$distance" ] && athctrl -i "$device" -d "$distance" >&-
223
224                 config_get rate "$vif" rate
225                 [ -n "$rate" ] && iwconfig "$ifname" rate "${rate%%.*}"
226
227                 config_get mcast_rate "$vif" mcast_rate
228                 [ -n "$mcast_rate" ] && iwpriv "$ifname" mcast_rate "${mcast_rate%%.*}"
229
230                 config_get frag "$vif" frag
231                 [ -n "$frag" ] && iwconfig "$ifname" frag "${frag%%.*}"
232
233                 config_get rts "$vif" rts
234                 [ -n "$rts" ] && iwconfig "$ifname" rts "${rts%%.*}"
235
236                 config_get_bool comp "$vif" compression
237                 [ -n "$comp" ] && iwpriv "$ifname" compression "$comp"
238
239                 config_get_bool minrate "$vif" minrate
240                 [ -n "$minrate" ] && iwpriv "$ifname" minrate "$minrate"
241
242                 config_get_bool maxrate "$vif" maxrate
243                 [ -n "$maxrate" ] && iwpriv "$ifname" maxrate "$maxrate"
244
245                 config_get_bool burst "$vif" bursting
246                 [ -n "$burst" ] && iwpriv "$ifname" burst "$burst"
247
248                 config_get_bool wmm "$vif" wmm
249                 [ -n "$wmm" ] && iwpriv "$ifname" wmm "$wmm"
250
251                 config_get_bool xr "$vif" xr
252                 [ -n "$xr" ] && iwpriv "$ifname" xr "$xr"
253
254                 config_get_bool ar "$vif" ar
255                 [ -n "$ar" ] && iwpriv "$ifname" ar "$ar"
256
257                 config_get_bool turbo "$vif" turbo
258                 [ -n "$turbo" ] && iwpriv "$ifname" turbo "$turbo"
259
260                 config_get_bool beacon_power "$vif" beacon_power
261                 [ -n "$beacon_power" ] && iwpriv "$ifname" beacon_pwr "$beacon_power"
262
263                 config_get_bool doth "$vif" doth 0
264                 [ -n "$doth" ] && iwpriv "$ifname" doth "$doth"
265
266                 config_get_bool probereq "$vif" probereq
267                 [ -n "$probereq" ] && iwpriv "$ifname" probereq "$probereq"
268
269                 config_get maclist "$vif" maclist
270                 [ -n "$maclist" ] && {
271                         # flush MAC list
272                         iwpriv "$ifname" maccmd 3
273                         for mac in $maclist; do
274                                 iwpriv "$ifname" addmac "$mac"
275                         done
276                 }
277
278                 config_get macpolicy "$vif" macpolicy
279                 case "$macpolicy" in
280                         allow)
281                                 iwpriv "$ifname" maccmd 1
282                         ;;
283                         deny)
284                                 iwpriv "$ifname" maccmd 2
285                         ;;
286                         *)
287                                 # default deny policy if mac list exists
288                                 [ -n "$maclist" ] && iwpriv "$ifname" maccmd 2
289                         ;;
290                 esac
291
292                 ifconfig "$ifname" up
293
294                 local net_cfg bridge
295                 net_cfg="$(find_net_config "$vif")"
296                 [ -z "$net_cfg" ] || {
297                         bridge="$(bridge_interface "$net_cfg")"
298                         config_set "$vif" bridge "$bridge"
299                         start_net "$ifname" "$net_cfg"
300                 }
301                 [ -n "$ssid" ] && iwconfig "$ifname" essid on
302                 iwconfig "$ifname" essid "$ssid"
303                 set_wifi_up "$vif" "$ifname"
304
305                 # TXPower settings only work if device is up already
306                 # while atheros hardware theoretically is capable of per-vif (even per-packet) txpower
307                 # adjustment it does not work with the current atheros hal/madwifi driver
308
309                 config_get vif_txpower "$vif" txpower
310                 # use vif_txpower (from wifi-iface) instead of txpower (from wifi-device) if
311                 # the latter doesn't exist
312                 txpower="${txpower:-$vif_txpower}"
313                 [ -z "$txpower" ] || iwconfig "$ifname" txpower "${txpower%%.*}"
314
315                 case "$mode" in
316                         ap)
317                                 config_get_bool isolate "$vif" isolate 0
318                                 iwpriv "$ifname" ap_bridge "$((isolate^1))"
319
320                                 if [ -n "$start_hostapd" ] && eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
321                                         hostapd_setup_vif "$vif" madwifi || {
322                                                 echo "enable_atheros($device): Failed to set up hostapd for interface $ifname" >&2
323                                                 # make sure this wifi interface won't accidentally stay open without encryption
324                                                 ifconfig "$ifname" down
325                                                 wlanconfig "$ifname" destroy
326                                                 continue
327                                         }
328                                 fi
329                         ;;
330                         wds|sta)
331                                 if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
332                                         wpa_supplicant_setup_vif "$vif" madwifi || {
333                                                 echo "enable_atheros($device): Failed to set up wpa_supplicant for interface $ifname" >&2
334                                                 ifconfig "$ifname" down
335                                                 wlanconfig "$ifname" destroy
336                                                 continue
337                                         }
338                                 fi
339                         ;;
340                 esac
341                 first=0
342         done
343 }
344
345
346 detect_atheros() {
347         cd /proc/sys/dev
348         [ -d ath ] || return
349         for dev in $(ls -d wifi* 2>&-); do
350                 config_get type "$dev" type
351                 devname="$(cat /proc/sys/dev/$dev/dev_name)"
352                 case "$devname" in
353                         NanoStation*)
354                                 EXTRA_DEV="
355 # Ubiquiti NanoStation features
356         option antenna  auto # (auto|horizontal|vertical|external)
357 "
358                         ;;
359                 esac
360                 [ "$type" = atheros ] && return
361                 cat <<EOF
362 config wifi-device  $dev
363         option type     atheros
364         option channel  auto
365 $EXTRA_DEV
366         # REMOVE THIS LINE TO ENABLE WIFI:
367         option disabled 1
368
369 config wifi-iface
370         option device   $dev
371         option network  lan
372         option mode     ap
373         option ssid     OpenWrt
374         option encryption none
375 EOF
376         done
377 }