scripts/netifd-wireless.sh

   1 NETIFD_MAIN_DIR="${NETIFD_MAIN_DIR:-/lib/netifd}"
   2
   3 . /usr/share/libubox/jshn.sh
   4 . $NETIFD_MAIN_DIR/utils.sh
   5
   6 CMD_UP=0
   7 CMD_SET_DATA=1
   8 CMD_PROCESS_ADD=2
   9 CMD_PROCESS_KILL_ALL=3
  10 CMD_SET_RETRY=4
  11
  12 add_driver() {
  13         return
  14 }
  15
  16 wireless_setup_vif_failed() {
  17         local error="$1"
  18         echo "Interface $_w_iface setup failed: $error"
  19 }
  20
  21 wireless_setup_failed() {
  22         local error="$1"
  23
  24         echo "Device setup failed: $error"
  25         wireless_set_retry 0
  26 }
  27
  28 prepare_key_wep() {
  29         local key="$1"
  30         local hex=1
  31
  32         echo -n "$key" | grep -qE "[^a-fA-F0-9]" && hex=0
  33         [ "${#key}" -eq 10 -a $hex -eq 1 ] || \
  34         [ "${#key}" -eq 26 -a $hex -eq 1 ] || {
  35                 [ "${key:0:2}" = "s:" ] && key="${key#s:}"
  36                 key="$(echo -n "$key" | hexdump -ve '1/1 "%02x" ""')"
  37         }
  38         echo "$key"
  39 }
  40
  41 _wdev_prepare_channel() {
  42         json_get_vars channel band hwmode
  43
  44         auto_channel=0
  45         enable_ht=0
  46         htmode=
  47         hwmode="${hwmode##11}"
  48
  49         case "$channel" in
  50                 ""|0|auto)
  51                         channel=0
  52                         auto_channel=1
  53                 ;;
  54                 [0-9]*) ;;
  55                 *)
  56                         wireless_setup_failed "INVALID_CHANNEL"
  57                 ;;
  58         esac
  59
  60         case "$hwmode" in
  61                 a|b|g|ad) ;;
  62                 *)
  63                         if [ "$channel" -gt 14 ]; then
  64                                 hwmode=a
  65                         else
  66                                 hwmode=g
  67                         fi
  68                 ;;
  69         esac
  70
  71         case "$band" in
  72                 2g) hwmode=g;;
  73                 5g|6g|60g) hwmode=a;;
  74                 *)
  75                         case "$hwmode" in
  76                                 *a) band=5g;;
  77                                 *ad) band=60g;;
  78                                 *b|*g) band=2g;;
  79                         esac
  80                 ;;
  81         esac
  82 }
  83
  84 _wdev_handler() {
  85         json_load "$data"
  86
  87         json_select config
  88         _wdev_prepare_channel
  89         json_select ..
  90
  91         eval "drv_$1_$2 \"$interface\""
  92 }
  93
  94 _wdev_msg_call() {
  95         local old_cb
  96
  97         json_set_namespace wdev old_cb
  98         "$@"
  99         json_set_namespace $old_cb
 100 }
 101
 102 _wdev_wrapper() {
 103         while [ -n "$1" ]; do
 104                 eval "$1() { _wdev_msg_call _$1 \"\$@\"; }"
 105                 shift
 106         done
 107 }
 108
 109 _wdev_notify_init() {
 110         local command="$1"
 111         local name="$2"
 112         local value="$3"
 113
 114         json_init
 115         json_add_int "command" "$command"
 116         json_add_string "device" "$__netifd_device"
 117         [ -n "$name" -a -n "$value" ] && json_add_string "$name" "$value"
 118         json_add_object "data"
 119 }
 120
 121 _wdev_notify() {
 122         local options="$1"
 123
 124         json_close_object
 125         ubus $options call network.wireless notify "$(json_dump)"
 126 }
 127
 128 _wdev_add_variables() {
 129         while [ -n "$1" ]; do
 130                 local var="${1%%=*}"
 131                 local val="$1"
 132                 shift
 133                 [[ "$var" = "$val" ]] && continue
 134                 val="${val#*=}"
 135                 json_add_string "$var" "$val"
 136         done
 137 }
 138
 139 _wireless_add_vif() {
 140         local name="$1"; shift
 141         local ifname="$1"; shift
 142
 143         _wdev_notify_init $CMD_SET_DATA "interface" "$name"
 144         json_add_string "ifname" "$ifname"
 145         _wdev_add_variables "$@"
 146         _wdev_notify
 147 }
 148
 149 _wireless_add_vlan() {
 150         local name="$1"; shift
 151         local ifname="$1"; shift
 152
 153         _wdev_notify_init $CMD_SET_DATA "vlan" "$name"
 154         json_add_string "ifname" "$ifname"
 155         _wdev_add_variables "$@"
 156         _wdev_notify
 157 }
 158
 159 _wireless_set_up() {
 160         _wdev_notify_init $CMD_UP
 161         _wdev_notify
 162 }
 163
 164 _wireless_set_data() {
 165         _wdev_notify_init $CMD_SET_DATA
 166         _wdev_add_variables "$@"
 167         _wdev_notify
 168 }
 169
 170 _wireless_add_process() {
 171         _wdev_notify_init $CMD_PROCESS_ADD
 172         local exe="$2"
 173         [ -L "$exe" ] && exe="$(readlink -f "$exe")"
 174         json_add_int pid "$1"
 175         json_add_string exe "$exe"
 176         [ -n "$3" ] && json_add_boolean required 1
 177         [ -n "$4" ] && json_add_boolean keep 1
 178         exe2="$(readlink -f /proc/$1/exe)"
 179         [ "$exe" != "$exe2" ] && echo "WARNING (wireless_add_process): executable path $exe does not match process $1 path ($exe2)"
 180         _wdev_notify
 181 }
 182
 183 _wireless_process_kill_all() {
 184         _wdev_notify_init $CMD_PROCESS_KILL_ALL
 185         [ -n "$1" ] && json_add_int signal "$1"
 186         _wdev_notify
 187 }
 188
 189 _wireless_set_retry() {
 190         _wdev_notify_init $CMD_SET_RETRY
 191         json_add_int retry "$1"
 192         _wdev_notify
 193 }
 194
 195 _wdev_wrapper \
 196         wireless_add_vif \
 197         wireless_add_vlan \
 198         wireless_set_up \
 199         wireless_set_data \
 200         wireless_add_process \
 201         wireless_process_kill_all \
 202         wireless_set_retry \
 203
 204 wireless_vif_parse_encryption() {
 205         json_get_vars encryption
 206         set_default encryption none
 207
 208         auth_mode_open=1
 209         auth_mode_shared=0
 210         auth_type=none
 211
 212         if [ "$hwmode" = "ad" ]; then
 213                 wpa_cipher="GCMP"
 214         else
 215                 wpa_cipher="CCMP"
 216         fi
 217
 218         case "$encryption" in
 219                 *tkip+aes|*tkip+ccmp|*aes+tkip|*ccmp+tkip) wpa_cipher="CCMP TKIP";;
 220                 *aes|*ccmp) wpa_cipher="CCMP";;
 221                 *tkip) wpa_cipher="TKIP";;
 222                 *gcmp) wpa_cipher="GCMP";;
 223         esac
 224
 225         # 802.11n requires CCMP for WPA
 226         [ "$enable_ht:$wpa_cipher" = "1:TKIP" ] && wpa_cipher="CCMP TKIP"
 227
 228         # Examples:
 229         # psk-mixed/tkip    => WPA1+2 PSK, TKIP
 230         # wpa-psk2/tkip+aes => WPA2 PSK, CCMP+TKIP
 231         # wpa2/tkip+aes     => WPA2 RADIUS, CCMP+TKIP
 232
 233         case "$encryption" in
 234                 wpa2*|wpa3*|*psk2*|psk3*|sae*|owe*)
 235                         wpa=2
 236                 ;;
 237                 wpa*mixed*|*psk*mixed*)
 238                         wpa=3
 239                 ;;
 240                 wpa*|*psk*)
 241                         wpa=1
 242                 ;;
 243                 *)
 244                         wpa=0
 245                         wpa_cipher=
 246                 ;;
 247         esac
 248         wpa_pairwise="$wpa_cipher"
 249
 250         case "$encryption" in
 251                 owe*)
 252                         auth_type=owe
 253                 ;;
 254                 wpa3-mixed*)
 255                         auth_type=eap-eap192
 256                 ;;
 257                 wpa3*)
 258                         auth_type=eap192
 259                 ;;
 260                 psk3-mixed*|sae-mixed*)
 261                         auth_type=psk-sae
 262                 ;;
 263                 psk3*|sae*)
 264                         auth_type=sae
 265                 ;;
 266                 *psk*)
 267                         auth_type=psk
 268                 ;;
 269                 *wpa*|*8021x*)
 270                         auth_type=eap
 271                 ;;
 272                 *wep*)
 273                         auth_type=wep
 274                         case "$encryption" in
 275                                 *shared*)
 276                                         auth_mode_open=0
 277                                         auth_mode_shared=1
 278                                 ;;
 279                                 *mixed*)
 280                                         auth_mode_shared=1
 281                                 ;;
 282                         esac
 283                 ;;
 284         esac
 285
 286         case "$encryption" in
 287                 *osen*)
 288                         auth_osen=1
 289                 ;;
 290         esac
 291 }
 292
 293 _wireless_set_brsnoop_isolation() {
 294         local multicast_to_unicast="$1"
 295         local isolate
 296
 297         json_get_var isolate isolate
 298
 299         [ ${isolate:-0} -gt 0 -o -z "$network_bridge" ] && return
 300         [ ${multicast_to_unicast:-1} -gt 0 ] && json_add_boolean isolate 1
 301 }
 302
 303 for_each_interface() {
 304         local _w_types="$1"; shift
 305         local _w_ifaces _w_iface
 306         local _w_type
 307         local _w_found
 308
 309         local multicast_to_unicast
 310
 311         json_get_keys _w_ifaces interfaces
 312         json_select interfaces
 313         for _w_iface in $_w_ifaces; do
 314                 json_select "$_w_iface"
 315                 if [ -n "$_w_types" ]; then
 316                         json_get_var network_bridge bridge
 317                         json_get_var multicast_to_unicast multicast_to_unicast
 318                         json_select config
 319                         _wireless_set_brsnoop_isolation "$multicast_to_unicast"
 320                         json_get_var _w_type mode
 321                         json_select ..
 322                         _w_types=" $_w_types "
 323                         [[ "${_w_types%$_w_type*}" = "$_w_types" ]] && {
 324                                 json_select ..
 325                                 continue
 326                         }
 327                 fi
 328                 "$@" "$_w_iface"
 329                 json_select ..
 330         done
 331         json_select ..
 332 }
 333
 334 for_each_vlan() {
 335         local _w_vlans _w_vlan
 336
 337         json_get_keys _w_vlans vlans
 338         json_select vlans
 339         for _w_vlan in $_w_vlans; do
 340                 json_select "$_w_vlan"
 341                 json_select config
 342                 "$@" "$_w_vlan"
 343                 json_select ..
 344                 json_select ..
 345         done
 346         json_select ..
 347 }
 348
 349 for_each_station() {
 350         local _w_stas _w_sta
 351
 352         json_get_keys _w_stas stas
 353         json_select stas
 354         for _w_sta in $_w_stas; do
 355                 json_select "$_w_sta"
 356                 json_select config
 357                 "$@" "$_w_sta"
 358                 json_select ..
 359                 json_select ..
 360         done
 361         json_select ..
 362 }
 363
 364 _wdev_common_device_config() {
 365         config_add_string channel hwmode band htmode noscan
 366 }
 367
 368 _wdev_common_iface_config() {
 369         config_add_string mode ssid encryption 'key:wpakey'
 370 }
 371
 372 _wdev_common_vlan_config() {
 373         config_add_string name vid iface
 374 }
 375
 376 _wdev_common_station_config() {
 377         config_add_string mac key vid iface
 378 }
 379
 380 init_wireless_driver() {
 381         name="$1"; shift
 382         cmd="$1"; shift
 383
 384         case "$cmd" in
 385                 dump)
 386                         add_driver() {
 387                                 eval "drv_$1_cleanup"
 388
 389                                 json_init
 390                                 json_add_string name "$1"
 391
 392                                 json_add_array device
 393                                 _wdev_common_device_config
 394                                 eval "drv_$1_init_device_config"
 395                                 json_close_array
 396
 397                                 json_add_array iface
 398                                 _wdev_common_iface_config
 399                                 eval "drv_$1_init_iface_config"
 400                                 json_close_array
 401
 402                                 json_add_array vlan
 403                                 _wdev_common_vlan_config
 404                                 eval "drv_$1_init_vlan_config"
 405                                 json_close_array
 406
 407                                 json_add_array station
 408                                 _wdev_common_station_config
 409                                 eval "drv_$1_init_station_config"
 410                                 json_close_array
 411
 412                                 json_dump
 413                         }
 414                 ;;
 415                 setup|teardown)
 416                         interface="$1"; shift
 417                         data="$1"; shift
 418                         export __netifd_device="$interface"
 419
 420                         add_driver() {
 421                                 [[ "$name" == "$1" ]] || return 0
 422                                 _wdev_handler "$1" "$cmd"
 423                         }
 424                 ;;
 425         esac
 426 }