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 "${ap:+$ap }${adhoc:+$adhoc }${ahdemo:+$ahdemo }${sta:+$sta }${wds:+$wds }${monitor:+$monitor}"
  46 }
  47
  48
  49 disable_atheros() (
  50         local device="$1"
  51
  52         set_wifi_down "$device"
  53         # kill all running hostapd and wpa_supplicant processes that
  54         # are running on atheros vifs
  55         for pid in `pidof hostapd wpa_supplicant`; do
  56                 grep ath /proc/$pid/cmdline >/dev/null && \
  57                         kill $pid
  58         done
  59
  60         include /lib/network
  61         cd /proc/sys/net
  62         for dev in *; do
  63                 grep "$device" "$dev/%parent" >/dev/null 2>/dev/null && {
  64                         ifconfig "$dev" down
  65                         unbridge "$dev"
  66                         wlanconfig "$dev" destroy
  67                 }
  68         done
  69         return 0
  70 )
  71
  72 enable_atheros() {
  73         local device="$1"
  74         config_get channel "$device" channel
  75         config_get vifs "$device" vifs
  76
  77         [ auto = "$channel" ] && channel=0
  78
  79         local first=1
  80         for vif in $vifs; do
  81                 nosbeacon=
  82                 config_get ifname "$vif" ifname
  83                 config_get enc "$vif" encryption
  84                 config_get eap_type "$vif" eap_type
  85                 config_get mode "$vif" mode
  86
  87                 [ "$mode" = sta ] && config_get nosbeacon "$device" nosbeacon
  88
  89                 config_get ifname "$vif" ifname
  90                 ifname=$(wlanconfig "$ifname" create wlandev "$device" wlanmode "$mode" ${nosbeacon:+nosbeacon})
  91                 [ $? -ne 0 ] && {
  92                         echo "enable_atheros($device): Failed to set up $mode vif $ifname" >&2
  93                         continue
  94                 }
  95                 config_set "$vif" ifname "$ifname"
  96
  97                 [ "$first" = 1 ] && {
  98                         # only need to change freq band and channel on the first vif
  99                         config_get agmode "$device" agmode
 100                         [ -z "$agmode" ] && config_get agmode "$device" mode
 101
 102                         pureg=0
 103                         case "$agmode" in
 104                                 *b) agmode=11b;;
 105                                 *bg) agmode=11g;;
 106                                 *g) agmode=11g; pureg=1;;
 107                                 *gdt) agmode=11gdt;;
 108                                 *a) agmode=11a;;
 109                                 *adt) agmode=11adt;;
 110                                 *ast) agmode=11ast;;
 111                                 *fh) agmode=fh;;
 112                                 *) agmode=auto;;
 113                         esac
 114                         iwpriv "$ifname" mode "$agmode"
 115                         iwpriv "$ifname" pureg "$pureg"
 116                         iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
 117                 }
 118
 119                 config_get_bool hidden "$vif" hidden 0
 120                 iwpriv "$ifname" hide_ssid "$hidden"
 121
 122                 config_get ff "$vif" ff
 123                 if [ -n "$ff" ]; then
 124                         iwpriv "$ifname" ff "$ff"
 125                 fi
 126
 127                 config_get wds "$vif" wds
 128                 case "$wds" in
 129                         1|on|enabled) wds=1;;
 130                         *) wds=0;;
 131                 esac
 132                 iwpriv "$ifname" wds "$wds"
 133
 134                 [ "$mode" = ap -a "$wds" = 1 ] && {
 135                         config_get_bool wdssep "$vif" wdssep 1
 136                         [ -n "$wdssep" ] && iwpriv "$ifname" wdssep "$wdssep"
 137                 }
 138
 139                 wpa=
 140                 case "$enc" in
 141                         WEP|wep)
 142                                 for idx in 1 2 3 4; do
 143                                         config_get key "$vif" "key${idx}"
 144                                         iwconfig "$ifname" enc "[$idx]" "${key:-off}"
 145                                 done
 146                                 config_get key "$vif" key
 147                                 key="${key:-1}"
 148                                 case "$key" in
 149                                         [1234]) iwconfig "$ifname" enc "[$key]";;
 150                                         *) iwconfig "$ifname" enc "$key";;
 151                                 esac
 152                         ;;
 153                         PSK|psk|PSK2|psk2)
 154                                 config_get key "$vif" key
 155                         ;;
 156                 esac
 157
 158                 case "$mode" in
 159                         adhoc|ahdemo)
 160                                 config_get addr "$vif" bssid
 161                                 [ -z "$addr" ] || {
 162                                         iwconfig "$ifname" ap "$addr"
 163                                 }
 164                         ;;
 165                 esac
 166                 config_get ssid "$vif" ssid
 167
 168                 config_get_bool bgscan "$vif" bgscan
 169                 [ -n "$bgscan" ] && iwpriv "$ifname" bgscan "$bgscan"
 170
 171                 config_get_bool antdiv "$device" diversity
 172                 [ -n "$antdiv" ] && sysctl -w dev."$device".diversity="$antdiv" >&-
 173
 174                 config_get antrx "$device" rxantenna
 175                 [ -n "$antrx" ] && sysctl -w dev."$device".rxantenna="$antrx" >&-
 176
 177                 config_get anttx "$device" txantenna
 178                 [ -n "$anttx" ] && sysctl -w dev."$device".txantenna="$anttx" >&-
 179
 180                 config_get distance "$device" distance
 181                 [ -n "$distance" ] && athctrl -i "$device" -d "$distance" >&-
 182
 183                 config_get txpwr "$vif" txpower
 184                 [ -n "$txpwr" ] && iwconfig "$ifname" txpower "${txpwr%%.*}"
 185
 186                 config_get rate "$vif" rate
 187                 [ -n "$rate" ] && iwconfig "$ifname" rate "${rate%%.*}"
 188
 189                 config_get mcast_rate "$vif" mcast_rate
 190                 [ -n "$mcast_rate" ] && iwpriv "$ifname" mcast_rate "${mcast_rate%%.*}"
 191
 192                 config_get frag "$vif" frag
 193                 [ -n "$frag" ] && iwconfig "$ifname" frag "${frag%%.*}"
 194
 195                 config_get rts "$vif" rts
 196                 [ -n "$rts" ] && iwconfig "$ifname" rts "${rts%%.*}"
 197
 198                 config_get_bool comp "$vif" compression
 199                 [ -n "$comp" ] && iwpriv "$ifname" compression "$comp"
 200
 201                 config_get_bool minrate "$vif" minrate
 202                 [ -n "$minrate" ] && iwpriv "$ifname" minrate "$minrate"
 203
 204                 config_get_bool maxrate "$vif" maxrate
 205                 [ -n "$maxrate" ] && iwpriv "$ifname" maxrate "$maxrate"
 206
 207                 config_get_bool burst "$vif" bursting
 208                 [ -n "$burst" ] && iwpriv "$ifname" burst "$burst"
 209
 210                 config_get_bool wmm "$vif" wmm
 211                 [ -n "$wmm" ] && iwpriv "$ifname" wmm "$wmm"
 212
 213                 config_get_bool xr "$vif" xr
 214                 [ -n "$xr" ] && iwpriv "$ifname" xr "$xr"
 215
 216                 config_get_bool ar "$vif" ar
 217                 [ -n "$ar" ] && iwpriv "$ifname" ar "$ar"
 218
 219                 config_get_bool turbo "$vif" turbo
 220                 [ -n "$turbo" ] && iwpriv "$ifname" turbo "$turbo"
 221
 222                 config_get_bool doth "$vif" doth 0
 223                 [ -n "$doth" ] && iwpriv "$ifname" doth "$doth"
 224
 225                 config_get maclist "$vif" maclist
 226                 [ -n "$maclist" ] && {
 227                         # flush MAC list
 228                         iwpriv "$ifname" maccmd 3
 229                         for mac in $maclist; do
 230                                 iwpriv "$ifname" addmac "$mac"
 231                         done
 232                 }
 233
 234                 config_get macpolicy "$vif" macpolicy
 235                 case "$macpolicy" in
 236                         allow)
 237                                 iwpriv "$ifname" maccmd 1
 238                         ;;
 239                         deny)
 240                                 iwpriv "$ifname" maccmd 2
 241                         ;;
 242                         *)
 243                                 # default deny policy if mac list exists
 244                                 [ -n "$maclist" ] && iwpriv "$ifname" maccmd 2
 245                         ;;
 246                 esac
 247
 248                 ifconfig "$ifname" up
 249                 local net_cfg bridge
 250                 net_cfg="$(find_net_config "$vif")"
 251                 [ -z "$net_cfg" ] || {
 252                         bridge="$(bridge_interface "$net_cfg")"
 253                         config_set "$vif" bridge "$bridge"
 254                         start_net "$ifname" "$net_cfg"
 255                 }
 256                 iwconfig "$ifname" essid "$ssid"
 257                 set_wifi_up "$vif" "$ifname"
 258                 case "$mode" in
 259                         ap)
 260                                 config_get_bool isolate "$vif" isolate 0
 261                                 iwpriv "$ifname" ap_bridge "$((isolate^1))"
 262
 263                                 if eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
 264                                         hostapd_setup_vif "$vif" madwifi || {
 265                                                 echo "enable_atheros($device): Failed to set up wpa for interface $ifname" >&2
 266                                                 # make sure this wifi interface won't accidentally stay open without encryption
 267                                                 ifconfig "$ifname" down
 268                                                 wlanconfig "$ifname" destroy
 269                                                 continue
 270                                         }
 271                                 fi
 272                         ;;
 273                         wds|sta)
 274                                 config_get_bool usepassphrase "$vif" passphrase 1
 275                                 case "$enc" in
 276                                         PSK|psk|PSK2|psk2)
 277                                                 case "$enc" in
 278                                                         PSK|psk)
 279                                                                 proto='proto=WPA'
 280                                                                 if [ "$usepassphrase" = "1" ]; then
 281                                                                         passphrase="psk=\"${key}\""
 282                                                                 else
 283                                                                         passphrase="psk=${key}"
 284                                                                 fi
 285                                                                 ;;
 286                                                         PSK2|psk2)
 287                                                                 proto='proto=RSN'
 288                                                                 if [ "$usepassphrase" = "1" ]; then
 289                                                                         passphrase="psk=\"${key}\""
 290                                                                 else
 291                                                                         passphrase="psk=${key}"
 292                                                                 fi
 293                                                                 ;;
 294                                                 esac
 295                                                 cat > /var/run/wpa_supplicant-$ifname.conf <<EOF
 296 network={
 297         scan_ssid=1
 298         ssid="$ssid"
 299         key_mgmt=WPA-PSK
 300         $proto
 301         $passphrase
 302 }
 303 EOF
 304                                         ;;
 305                                         WPA|wpa|WPA2|wpa2i|8021x|8021X)
 306                                                 config_get ca_cert "$vif" ca_cert
 307                                                 eap_type=$(echo $eap_type | tr 'a-z' 'A-Z')
 308                                                 case "$eap_type" in
 309                                                         tls|TLS)
 310                                                                 proto='proto=WPA2'
 311                                                                 pairwise='pairwise=CCMP'
 312                                                                 group='group=CCMP'
 313                                                                 config_get priv_key "$vif" priv_key
 314                                                                 config_get priv_key_pwd "$vif" priv_key_pwd
 315                                                                 priv_key="private_key=\"$priv_key\""
 316                                                                 priv_key_pwd="private_key_passwd=\"$priv_key_pwd\""
 317                                                         ;;
 318                                                         peap|PEAP|ttls|TTLS)
 319                                                                 proto='proto=WPA2'
 320                                                                 config_get auth "$vif" auth
 321                                                                 config_get identity "$vif" identity
 322                                                                 config_get password "$vif" password
 323                                                                 phase2="phase2=\"auth=${auth:-MSCHAPV2}\""
 324                                                                 identity="identity=\"$identity\""
 325                                                                 password="password=\"$password\""
 326                                                         ;;
 327                                                 esac
 328                                                 cat > /var/run/wpa_supplicant-$ifname.conf <<EOF
 329 network={
 330         scan_ssid=1
 331         ssid="$ssid"
 332         key_mgmt=WPA-EAP
 333         $proto
 334         $pairwise
 335         $group
 336         eap=$eap_type
 337         ca_cert="$ca_cert"
 338         $priv_key
 339         $priv_key_pwd
 340         $phase2
 341         $identity
 342         $password
 343 }
 344 EOF
 345                                         ;;
 346                                 esac
 347                                 [ -z "$proto" ] || wpa_supplicant ${bridge:+ -b $bridge} -B -D madwifi -i "$ifname" -c /var/run/wpa_supplicant-$ifname.conf
 348                         ;;
 349                 esac
 350                 first=0
 351         done
 352 }
 353
 354
 355 detect_atheros() {
 356         cd /proc/sys/dev
 357         [ -d ath ] || return
 358         for dev in $(ls -d wifi* 2>&-); do
 359                 config_get type "$dev" type
 360                 [ "$type" = atheros ] && return
 361                 cat <<EOF
 362 config wifi-device  $dev
 363         option type     atheros
 364         option channel  auto
 365
 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 }