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 ht_coex
  25         config_add_array ht_capab
  26         config_add_array channels
  27         config_add_boolean \
  28                 rxldpc \
  29                 short_gi_80 \
  30                 short_gi_160 \
  31                 tx_stbc_2by1 \
  32                 su_beamformer \
  33                 su_beamformee \
  34                 mu_beamformer \
  35                 mu_beamformee \
  36                 vht_txop_ps \
  37                 htc_vht \
  38                 rx_antenna_pattern \
  39                 tx_antenna_pattern
  40         config_add_int vht_max_a_mpdu_len_exp vht_max_mpdu vht_link_adapt vht160 rx_stbc tx_stbc
  41         config_add_boolean \
  42                 ldpc \
  43                 greenfield \
  44                 short_gi_20 \
  45                 short_gi_40 \
  46                 max_amsdu \
  47                 dsss_cck_40
  48 }
  49
  50 drv_mac80211_init_iface_config() {
  51         hostapd_common_add_bss_config
  52
  53         config_add_string 'macaddr:macaddr' ifname
  54
  55         config_add_boolean wds powersave
  56         config_add_int maxassoc
  57         config_add_int max_listen_int
  58         config_add_int dtim_period
  59         config_add_int start_disabled
  60
  61         # mesh
  62         config_add_string mesh_id
  63         config_add_int $MP_CONFIG_INT
  64         config_add_boolean $MP_CONFIG_BOOL
  65         config_add_string $MP_CONFIG_STRING
  66 }
  67
  68 mac80211_add_capabilities() {
  69         local __var="$1"; shift
  70         local __mask="$1"; shift
  71         local __out= oifs
  72
  73         oifs="$IFS"
  74         IFS=:
  75         for capab in "$@"; do
  76                 set -- $capab
  77
  78                 [ "$(($4))" -gt 0 ] || continue
  79                 [ "$(($__mask & $2))" -eq "$((${3:-$2}))" ] || continue
  80                 __out="$__out[$1]"
  81         done
  82         IFS="$oifs"
  83
  84         export -n -- "$__var=$__out"
  85 }
  86
  87 mac80211_hostapd_setup_base() {
  88         local phy="$1"
  89
  90         json_select config
  91
  92         [ "$auto_channel" -gt 0 ] && channel=acs_survey
  93         [ "$auto_channel" -gt 0 ] && json_get_values channel_list channels
  94
  95         json_get_vars noscan ht_coex
  96         json_get_values ht_capab_list ht_capab
  97
  98         ieee80211n=1
  99         ht_capab=
 100         case "$htmode" in
 101                 VHT20|HT20) ;;
 102                 HT40*|VHT40|VHT80|VHT160)
 103                         case "$hwmode" in
 104                                 a)
 105                                         case "$(( ($channel / 4) % 2 ))" in
 106                                                 1) ht_capab="[HT40+]";;
 107                                                 0) ht_capab="[HT40-]";;
 108                                         esac
 109                                 ;;
 110                                 *)
 111                                         case "$htmode" in
 112                                                 HT40+) ht_capab="[HT40+]";;
 113                                                 HT40-) ht_capab="[HT40-]";;
 114                                                 *)
 115                                                         if [ "$channel" -lt 7 ]; then
 116                                                                 ht_capab="[HT40+]"
 117                                                         else
 118                                                                 ht_capab="[HT40-]"
 119                                                         fi
 120                                                 ;;
 121                                         esac
 122                                 ;;
 123                         esac
 124                         [ "$auto_channel" -gt 0 ] && ht_capab="[HT40+]"
 125                 ;;
 126                 *) ieee80211n= ;;
 127         esac
 128
 129         [ -n "$ieee80211n" ] && {
 130                 append base_cfg "ieee80211n=1" "$N"
 131
 132                 set_default ht_coex 0
 133                 append base_cfg "ht_coex=$ht_coex" "$N"
 134
 135                 json_get_vars \
 136                         ldpc:1 \
 137                         greenfield:0 \
 138                         short_gi_20:1 \
 139                         short_gi_40:1 \
 140                         tx_stbc:1 \
 141                         rx_stbc:3 \
 142                         max_amsdu:1 \
 143                         dsss_cck_40:1
 144
 145                 ht_cap_mask=0
 146                 for cap in $(iw phy "$phy" info | grep 'Capabilities:' | cut -d: -f2); do
 147                         ht_cap_mask="$(($ht_cap_mask | $cap))"
 148                 done
 149
 150                 cap_rx_stbc=$((($ht_cap_mask >> 8) & 3))
 151                 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
 152                 ht_cap_mask="$(( ($ht_cap_mask & ~(0x300)) | ($cap_rx_stbc << 8) ))"
 153
 154                 mac80211_add_capabilities ht_capab_flags $ht_cap_mask \
 155                         LDPC:0x1::$ldpc \
 156                         GF:0x10::$greenfield \
 157                         SHORT-GI-20:0x20::$short_gi_20 \
 158                         SHORT-GI-40:0x40::$short_gi_40 \
 159                         TX-STBC:0x80::$tx_stbc \
 160                         RX-STBC1:0x300:0x100:1 \
 161                         RX-STBC12:0x300:0x200:1 \
 162                         RX-STBC123:0x300:0x300:1 \
 163                         MAX-AMSDU-7935:0x800::$max_amsdu \
 164                         DSSS_CCK-40:0x1000::$dsss_cck_40
 165
 166                 ht_capab="$ht_capab$ht_capab_flags"
 167                 [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
 168         }
 169
 170         # 802.11ac
 171         enable_ac=0
 172         idx="$channel"
 173         case "$htmode" in
 174                 VHT20) enable_ac=1;;
 175                 VHT40)
 176                         case "$(( ($channel / 4) % 2 ))" in
 177                                 1) idx=$(($channel + 2));;
 178                                 0) idx=$(($channel - 2));;
 179                         esac
 180                         enable_ac=1
 181                         append base_cfg "vht_oper_chwidth=0" "$N"
 182                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 183                 ;;
 184                 VHT80)
 185                         case "$(( ($channel / 4) % 4 ))" in
 186                                 1) idx=$(($channel + 6));;
 187                                 2) idx=$(($channel + 2));;
 188                                 3) idx=$(($channel - 2));;
 189                                 0) idx=$(($channel - 6));;
 190                         esac
 191                         enable_ac=1
 192                         append base_cfg "vht_oper_chwidth=1" "$N"
 193                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 194                 ;;
 195                 VHT160)
 196                         case "$channel" in
 197                                 36|40|44|48|52|56|60|64) idx=50;;
 198                                 100|104|108|112|116|120|124|128) idx=114;;
 199                         esac
 200                         enable_ac=1
 201                         append base_cfg "vht_oper_chwidth=2" "$N"
 202                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 203                 ;;
 204         esac
 205
 206         if [ "$enable_ac" != "0" ]; then
 207                 json_get_vars \
 208                         rxldpc:1 \
 209                         short_gi_80:1 \
 210                         short_gi_160:1 \
 211                         tx_stbc_2by1:1 \
 212                         su_beamformer:1 \
 213                         su_beamformee:1 \
 214                         mu_beamformer:1 \
 215                         mu_beamformee:1 \
 216                         vht_txop_ps:1 \
 217                         htc_vht:1 \
 218                         rx_antenna_pattern:1 \
 219                         tx_antenna_pattern:1 \
 220                         vht_max_a_mpdu_len_exp:7 \
 221                         vht_max_mpdu:11454 \
 222                         rx_stbc:4 \
 223                         vht_link_adapt:3 \
 224                         vht160:2
 225
 226                 append base_cfg "ieee80211ac=1" "$N"
 227                 vht_cap=0
 228                 for cap in $(iw phy "$phy" info | awk -F "[()]" '/VHT Capabilities/ { print $2 }'); do
 229                         vht_cap="$(($vht_cap | $cap))"
 230                 done
 231
 232                 cap_rx_stbc=$((($vht_cap >> 8) & 7))
 233                 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
 234                 vht_cap="$(( ($vht_cap & ~(0x700)) | ($cap_rx_stbc << 8) ))"
 235
 236                 mac80211_add_capabilities vht_capab $vht_cap \
 237                         RXLDPC:0x10::$rxldpc \
 238                         SHORT-GI-80:0x20::$short_gi_80 \
 239                         SHORT-GI-160:0x40::$short_gi_160 \
 240                         TX-STBC-2BY1:0x80::$tx_stbc_2by1 \
 241                         SU-BEAMFORMER:0x800::$su_beamformer \
 242                         SU-BEAMFORMEE:0x1000::$su_beamformee \
 243                         MU-BEAMFORMER:0x80000::$mu_beamformer \
 244                         MU-BEAMFORMEE:0x100000::$mu_beamformee \
 245                         VHT-TXOP-PS:0x200000::$vht_txop_ps \
 246                         HTC-VHT:0x400000::$htc_vht \
 247                         RX-ANTENNA-PATTERN:0x10000000::$rx_antenna_pattern \
 248                         TX-ANTENNA-PATTERN:0x20000000::$tx_antenna_pattern \
 249                         RX-STBC-1:0x700:0x100:1 \
 250                         RX-STBC-12:0x700:0x200:1 \
 251                         RX-STBC-123:0x700:0x300:1 \
 252                         RX-STBC-1234:0x700:0x400:1 \
 253
 254                 # supported Channel widths
 255                 vht160_hw=0
 256                 [ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \
 257                         vht160_hw=1
 258                 [ "$(($vht_cap & 12))" -eq 8 -a 2 -le "$vht160" ] && \
 259                         vht160_hw=2
 260                 [ "$vht160_hw" = 1 ] && vht_capab="$vht_capab[VHT160]"
 261                 [ "$vht160_hw" = 2 ] && vht_capab="$vht_capab[VHT160-80PLUS80]"
 262
 263                 # maximum MPDU length
 264                 vht_max_mpdu_hw=3895
 265                 [ "$(($vht_cap & 3))" -ge 1 -a 7991 -le "$vht_max_mpdu" ] && \
 266                         vht_max_mpdu_hw=7991
 267                 [ "$(($vht_cap & 3))" -ge 2 -a 11454 -le "$vht_max_mpdu" ] && \
 268                         vht_max_mpdu_hw=11454
 269                 [ "$vht_max_mpdu_hw" != 3895 ] && \
 270                         vht_capab="$vht_capab[MAX-MPDU-$vht_max_mpdu_hw]"
 271
 272                 # maximum A-MPDU length exponent
 273                 vht_max_a_mpdu_len_exp_hw=0
 274                 [ "$(($vht_cap & 58720256))" -ge 8388608 -a 1 -le "$vht_max_a_mpdu_len_exp" ] && \
 275                         vht_max_a_mpdu_len_exp_hw=1
 276                 [ "$(($vht_cap & 58720256))" -ge 16777216 -a 2 -le "$vht_max_a_mpdu_len_exp" ] && \
 277                         vht_max_a_mpdu_len_exp_hw=2
 278                 [ "$(($vht_cap & 58720256))" -ge 25165824 -a 3 -le "$vht_max_a_mpdu_len_exp" ] && \
 279                         vht_max_a_mpdu_len_exp_hw=3
 280                 [ "$(($vht_cap & 58720256))" -ge 33554432 -a 4 -le "$vht_max_a_mpdu_len_exp" ] && \
 281                         vht_max_a_mpdu_len_exp_hw=4
 282                 [ "$(($vht_cap & 58720256))" -ge 41943040 -a 5 -le "$vht_max_a_mpdu_len_exp" ] && \
 283                         vht_max_a_mpdu_len_exp_hw=5
 284                 [ "$(($vht_cap & 58720256))" -ge 50331648 -a 6 -le "$vht_max_a_mpdu_len_exp" ] && \
 285                         vht_max_a_mpdu_len_exp_hw=6
 286                 [ "$(($vht_cap & 58720256))" -ge 58720256 -a 7 -le "$vht_max_a_mpdu_len_exp" ] && \
 287                         vht_max_a_mpdu_len_exp_hw=7
 288                 vht_capab="$vht_capab[MAX-A-MPDU-LEN-EXP$vht_max_a_mpdu_len_exp_hw]"
 289
 290                 # whether or not the STA supports link adaptation using VHT variant
 291                 vht_link_adapt_hw=0
 292                 [ "$(($vht_cap & 201326592))" -ge 134217728 -a 2 -le "$vht_link_adapt" ] && \
 293                         vht_link_adapt_hw=2
 294                 [ "$(($vht_cap & 201326592))" -ge 201326592 -a 3 -le "$vht_link_adapt" ] && \
 295                         vht_link_adapt_hw=3
 296                 [ "$vht_link_adapt_hw" != 0 ] && \
 297                         vht_capab="$vht_capab[VHT-LINK-ADAPT-$vht_link_adapt_hw]"
 298
 299                 [ -n "$vht_capab" ] && append base_cfg "vht_capab=$vht_capab" "$N"
 300         fi
 301
 302         hostapd_prepare_device_config "$hostapd_conf_file" nl80211
 303         cat >> "$hostapd_conf_file" <<EOF
 304 ${channel:+channel=$channel}
 305 ${channel_list:+chanlist=$channel_list}
 306 ${noscan:+noscan=$noscan}
 307 $base_cfg
 308
 309 EOF
 310         json_select ..
 311 }
 312
 313 mac80211_hostapd_setup_bss() {
 314         local phy="$1"
 315         local ifname="$2"
 316         local macaddr="$3"
 317         local type="$4"
 318
 319         hostapd_cfg=
 320         append hostapd_cfg "$type=$ifname" "$N"
 321
 322         hostapd_set_bss_options hostapd_cfg "$vif" || return 1
 323         json_get_vars wds dtim_period max_listen_int start_disabled
 324
 325         set_default wds 0
 326         set_default start_disabled 0
 327
 328         [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
 329         [ "$staidx" -gt 0 -o "$start_disabled" -eq 1 ] && append hostapd_cfg "start_disabled=1" "$N"
 330
 331         cat >> /var/run/hostapd-$phy.conf <<EOF
 332 $hostapd_cfg
 333 bssid=$macaddr
 334 ${dtim_period:+dtim_period=$dtim_period}
 335 ${max_listen_int:+max_listen_interval=$max_listen_int}
 336 EOF
 337 }
 338
 339 mac80211_get_addr() {
 340         local phy="$1"
 341         local idx="$(($2 + 1))"
 342
 343         head -n $(($macidx + 1)) /sys/class/ieee80211/${phy}/addresses | tail -n1
 344 }
 345
 346 mac80211_generate_mac() {
 347         local phy="$1"
 348         local id="${macidx:-0}"
 349
 350         local ref="$(cat /sys/class/ieee80211/${phy}/macaddress)"
 351         local mask="$(cat /sys/class/ieee80211/${phy}/address_mask)"
 352
 353         [ "$mask" = "00:00:00:00:00:00" ] && {
 354                 mask="ff:ff:ff:ff:ff:ff";
 355
 356                 [ "$(wc -l < /sys/class/ieee80211/${phy}/addresses)" -gt 1 ] && {
 357                         addr="$(mac80211_get_addr "$phy" "$id")"
 358                         [ -n "$addr" ] && {
 359                                 echo "$addr"
 360                                 return
 361                         }
 362                 }
 363         }
 364
 365         local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
 366
 367         local mask1=$1
 368         local mask6=$6
 369
 370         local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
 371
 372         macidx=$(($id + 1))
 373         [ "$((0x$mask1))" -gt 0 ] && {
 374                 b1="0x$1"
 375                 [ "$id" -gt 0 ] && \
 376                         b1=$(($b1 ^ ((($id - 1) << 2) | 0x2)))
 377                 printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6
 378                 return
 379         }
 380
 381         [ "$((0x$mask6))" -lt 255 ] && {
 382                 printf "%s:%s:%s:%s:%s:%02x" $1 $2 $3 $4 $5 $(( 0x$6 ^ $id ))
 383                 return
 384         }
 385
 386         off2=$(( (0x$6 + $id) / 0x100 ))
 387         printf "%s:%s:%s:%s:%02x:%02x" \
 388                 $1 $2 $3 $4 \
 389                 $(( (0x$5 + $off2) % 0x100 )) \
 390                 $(( (0x$6 + $id) % 0x100 ))
 391 }
 392
 393 find_phy() {
 394         [ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0
 395         [ -n "$path" ] && {
 396                 for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
 397                         case "$(readlink -f /sys/class/ieee80211/$phy/device)" in
 398                                 *$path) return 0;;
 399                         esac
 400                 done
 401         }
 402         [ -n "$macaddr" ] && {
 403                 for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
 404                         grep -i -q "$macaddr" "/sys/class/ieee80211/${phy}/macaddress" && return 0
 405                 done
 406         }
 407         return 1
 408 }
 409
 410 mac80211_check_ap() {
 411         has_ap=1
 412 }
 413
 414 mac80211_iw_interface_add() {
 415         local phy="$1"
 416         local ifname="$2"
 417         local type="$3"
 418         local wdsflag="$4"
 419         local rc
 420
 421         iw phy "$phy" interface add "$ifname" type "$type" $wdsflag
 422         rc="$?"
 423
 424         [ "$rc" = 233 ] && {
 425                 # Device might have just been deleted, give the kernel some time to finish cleaning it up
 426                 sleep 1
 427
 428                 iw phy "$phy" interface add "$ifname" type "$type" $wdsflag
 429                 rc="$?"
 430         }
 431
 432         [ "$rc" != 0 ] && wireless_setup_failed INTERFACE_CREATION_FAILED
 433         return $rc
 434 }
 435
 436 mac80211_prepare_vif() {
 437         json_select config
 438
 439         json_get_vars ifname mode ssid wds powersave macaddr
 440
 441         [ -n "$ifname" ] || ifname="wlan${phy#phy}${if_idx:+-$if_idx}"
 442         if_idx=$((${if_idx:-0} + 1))
 443
 444         set_default wds 0
 445         set_default powersave 0
 446
 447         json_select ..
 448
 449         [ -n "$macaddr" ] || {
 450                 macaddr="$(mac80211_generate_mac $phy)"
 451                 macidx="$(($macidx + 1))"
 452         }
 453
 454         json_add_object data
 455         json_add_string ifname "$ifname"
 456         json_close_object
 457         json_select config
 458
 459         # It is far easier to delete and create the desired interface
 460         case "$mode" in
 461                 adhoc)
 462                         mac80211_iw_interface_add "$phy" "$ifname" adhoc || return
 463                 ;;
 464                 ap)
 465                         # Hostapd will handle recreating the interface and
 466                         # subsequent virtual APs belonging to the same PHY
 467                         if [ -n "$hostapd_ctrl" ]; then
 468                                 type=bss
 469                         else
 470                                 type=interface
 471                         fi
 472
 473                         mac80211_hostapd_setup_bss "$phy" "$ifname" "$macaddr" "$type" || return
 474
 475                         [ -n "$hostapd_ctrl" ] || {
 476                                 mac80211_iw_interface_add "$phy" "$ifname" __ap || return
 477                                 hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd/$ifname}"
 478                         }
 479                 ;;
 480                 mesh)
 481                         mac80211_iw_interface_add "$phy" "$ifname" mp || return
 482                 ;;
 483                 monitor)
 484                         mac80211_iw_interface_add "$phy" "$ifname" monitor || return
 485                 ;;
 486                 sta)
 487                         local wdsflag=
 488                         staidx="$(($staidx + 1))"
 489                         [ "$wds" -gt 0 ] && wdsflag="4addr on"
 490                         mac80211_iw_interface_add "$phy" "$ifname" managed "$wdsflag" || return
 491                         [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
 492                         iw "$ifname" set power_save "$powersave"
 493                 ;;
 494         esac
 495
 496         case "$mode" in
 497                 monitor|mesh)
 498                         [ "$auto_channel" -gt 0 ] || iw dev "$ifname" set channel "$channel" $htmode
 499                 ;;
 500         esac
 501
 502         if [ "$mode" != "ap" ]; then
 503                 # ALL ap functionality will be passed to hostapd
 504                 # All interfaces must have unique mac addresses
 505                 # which can either be explicitly set in the device
 506                 # section, or automatically generated
 507                 ip link set dev "$ifname" address "$macaddr"
 508         fi
 509
 510         json_select ..
 511 }
 512
 513 mac80211_setup_supplicant() {
 514         wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1
 515         wpa_supplicant_add_network "$ifname"
 516         wpa_supplicant_run "$ifname" ${hostapd_ctrl:+-H $hostapd_ctrl}
 517 }
 518
 519 mac80211_setup_adhoc_htmode() {
 520         case "$htmode" in
 521                 VHT20|HT20) ibss_htmode=HT20;;
 522                 HT40*|VHT40|VHT160)
 523                         case "$hwmode" in
 524                                 a)
 525                                         case "$(( ($channel / 4) % 2 ))" in
 526                                                 1) ibss_htmode="HT40+" ;;
 527                                                 0) ibss_htmode="HT40-";;
 528                                         esac
 529                                 ;;
 530                                 *)
 531                                         case "$htmode" in
 532                                                 HT40+) ibss_htmode="HT40+";;
 533                                                 HT40-) ibss_htmode="HT40-";;
 534                                                 *)
 535                                                         if [ "$channel" -lt 7 ]; then
 536                                                                 ibss_htmode="HT40+"
 537                                                         else
 538                                                                 ibss_htmode="HT40-"
 539                                                         fi
 540                                                 ;;
 541                                         esac
 542                                 ;;
 543                         esac
 544                         [ "$auto_channel" -gt 0 ] && ibss_htmode="HT40+"
 545                 ;;
 546                 VHT80)
 547                         ibss_htmode="80MHZ"
 548                 ;;
 549                 NONE|NOHT)
 550                         ibss_htmode="NOHT"
 551                 ;;
 552                 *) ibss_htmode="" ;;
 553         esac
 554
 555 }
 556
 557 mac80211_setup_adhoc() {
 558         json_get_vars bssid ssid key mcast_rate
 559
 560         keyspec=
 561         [ "$auth_type" = "wep" ] && {
 562                 set_default key 1
 563                 case "$key" in
 564                         [1234])
 565                                 local idx
 566                                 for idx in 1 2 3 4; do
 567                                         json_get_var ikey "key$idx"
 568
 569                                         [ -n "$ikey" ] && {
 570                                                 ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
 571                                                 [ $idx -eq $key ] && ikey="d:$ikey"
 572                                                 append keyspec "$ikey"
 573                                         }
 574                                 done
 575                         ;;
 576                         *)
 577                                 append keyspec "d:0:$(prepare_key_wep "$key")"
 578                         ;;
 579                 esac
 580         }
 581
 582         brstr=
 583         for br in $basic_rate_list; do
 584                 wpa_supplicant_add_rate brstr "$br"
 585         done
 586
 587         mcval=
 588         [ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 589
 590         iw dev "$ifname" ibss join "$ssid" $freq $ibss_htmode fixed-freq $bssid \
 591                 ${beacon_int:+beacon-interval $beacon_int} \
 592                 ${brstr:+basic-rates $brstr} \
 593                 ${mcval:+mcast-rate $mcval} \
 594                 ${keyspec:+keys $keyspec}
 595 }
 596
 597 mac80211_setup_vif() {
 598         local name="$1"
 599         local failed
 600
 601         json_select data
 602         json_get_vars ifname
 603         json_select ..
 604
 605         json_select config
 606         json_get_vars mode
 607         json_get_var vif_txpower txpower
 608
 609         ip link set dev "$ifname" up || {
 610                 wireless_setup_vif_failed IFUP_ERROR
 611                 json_select ..
 612                 return
 613         }
 614
 615         set_default vif_txpower "$txpower"
 616         [ -z "$vif_txpower" ] || iw dev "$ifname" set txpower fixed "${vif_txpower%%.*}00"
 617
 618         case "$mode" in
 619                 mesh)
 620                         # authsae or wpa_supplicant
 621                         json_get_vars key
 622                         if [ -n "$key" ]; then
 623                                 if [ -e "/lib/wifi/authsae.sh" ]; then
 624                                         . /lib/wifi/authsae.sh
 625                                         authsae_start_interface || failed=1
 626                                 else
 627                                         wireless_vif_parse_encryption
 628                                         mac80211_setup_supplicant || failed=1
 629                                 fi
 630                         else
 631                                 json_get_vars mesh_id mcast_rate
 632
 633                                 mcval=
 634                                 [ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 635
 636                                 case "$htmode" in
 637                                         VHT20|HT20) mesh_htmode=HT20;;
 638                                         HT40*|VHT40)
 639                                                 case "$hwmode" in
 640                                                         a)
 641                                                                 case "$(( ($channel / 4) % 2 ))" in
 642                                                                         1) mesh_htmode="HT40+" ;;
 643                                                                         0) mesh_htmode="HT40-";;
 644                                                                 esac
 645                                                         ;;
 646                                                         *)
 647                                                                 case "$htmode" in
 648                                                                         HT40+) mesh_htmode="HT40+";;
 649                                                                         HT40-) mesh_htmode="HT40-";;
 650                                                                         *)
 651                                                                                 if [ "$channel" -lt 7 ]; then
 652                                                                                         mesh_htmode="HT40+"
 653                                                                                 else
 654                                                                                         mesh_htmode="HT40-"
 655                                                                                 fi
 656                                                                         ;;
 657                                                                 esac
 658                                                         ;;
 659                                                 esac
 660                                         ;;
 661                                         VHT80)
 662                                                 mesh_htmode="80Mhz"
 663                                         ;;
 664                                         VHT160)
 665                                                 mesh_htmode="160Mhz"
 666                                         ;;
 667                                         *) mesh_htmode="NOHT" ;;
 668                                 esac
 669
 670                                 freq="$(get_freq "$phy" "$channel")"
 671                                 iw dev "$ifname" mesh join "$mesh_id" freq $freq $mesh_htmode ${mcval:+mcast-rate $mcval}
 672                         fi
 673
 674                         for var in $MP_CONFIG_INT $MP_CONFIG_BOOL $MP_CONFIG_STRING; do
 675                                 json_get_var mp_val "$var"
 676                                 [ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$var" "$mp_val"
 677                         done
 678                 ;;
 679                 adhoc)
 680                         wireless_vif_parse_encryption
 681                         mac80211_setup_adhoc_htmode
 682                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
 683                                 mac80211_setup_supplicant || failed=1
 684                         else
 685                                 mac80211_setup_adhoc
 686                         fi
 687                 ;;
 688                 sta)
 689                         mac80211_setup_supplicant || failed=1
 690                 ;;
 691         esac
 692
 693         json_select ..
 694         [ -n "$failed" ] || wireless_add_vif "$name" "$ifname"
 695 }
 696
 697 get_freq() {
 698         local phy="$1"
 699         local chan="$2"
 700         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
 701 }
 702
 703 mac80211_interface_cleanup() {
 704         local phy="$1"
 705
 706         for wdev in $(list_phy_interfaces "$phy"); do
 707                 ip link set dev "$wdev" down 2>/dev/null
 708                 iw dev "$wdev" del
 709         done
 710 }
 711
 712 drv_mac80211_cleanup() {
 713         hostapd_common_cleanup
 714 }
 715
 716 drv_mac80211_setup() {
 717         json_select config
 718         json_get_vars \
 719                 phy macaddr path \
 720                 country chanbw distance \
 721                 txpower antenna_gain \
 722                 rxantenna txantenna \
 723                 frag rts beacon_int htmode
 724         json_get_values basic_rate_list basic_rate
 725         json_select ..
 726
 727         find_phy || {
 728                 echo "Could not find PHY for device '$1'"
 729                 wireless_set_retry 0
 730                 return 1
 731         }
 732
 733         wireless_set_data phy="$phy"
 734         mac80211_interface_cleanup "$phy"
 735
 736         # convert channel to frequency
 737         [ "$auto_channel" -gt 0 ] || freq="$(get_freq "$phy" "$channel")"
 738
 739         [ -n "$country" ] && {
 740                 iw reg get | grep -q "^country $country:" || {
 741                         iw reg set "$country"
 742                         sleep 1
 743                 }
 744         }
 745
 746         hostapd_conf_file="/var/run/hostapd-$phy.conf"
 747
 748         no_ap=1
 749         macidx=0
 750         staidx=0
 751
 752         [ -n "$chanbw" ] && {
 753                 for file in /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode; do
 754                         [ -f "$file" ] && echo "$chanbw" > "$file"
 755                 done
 756         }
 757
 758         set_default rxantenna all
 759         set_default txantenna all
 760         set_default distance 0
 761         set_default antenna_gain 0
 762
 763         iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
 764         iw phy "$phy" set antenna_gain $antenna_gain
 765         iw phy "$phy" set distance "$distance"
 766
 767         [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
 768         [ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
 769
 770         has_ap=
 771         hostapd_ctrl=
 772         for_each_interface "ap" mac80211_check_ap
 773
 774         rm -f "$hostapd_conf_file"
 775         [ -n "$has_ap" ] && mac80211_hostapd_setup_base "$phy"
 776
 777         for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
 778         for_each_interface "ap" mac80211_prepare_vif
 779
 780         [ -n "$hostapd_ctrl" ] && {
 781                 /usr/sbin/hostapd -s -P /var/run/wifi-$phy.pid -B "$hostapd_conf_file"
 782                 ret="$?"
 783                 wireless_add_process "$(cat /var/run/wifi-$phy.pid)" "/usr/sbin/hostapd" 1
 784                 [ "$ret" != 0 ] && {
 785                         wireless_setup_failed HOSTAPD_START_FAILED
 786                         return
 787                 }
 788         }
 789
 790         for_each_interface "ap sta adhoc mesh monitor" mac80211_setup_vif
 791
 792         wireless_set_up
 793 }
 794
 795 list_phy_interfaces() {
 796         local phy="$1"
 797         if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then
 798                 ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null;
 799         else
 800                 ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g'
 801         fi
 802 }
 803
 804 drv_mac80211_teardown() {
 805         wireless_process_kill_all
 806
 807         json_select data
 808         json_get_vars phy
 809         json_select ..
 810
 811         mac80211_interface_cleanup "$phy"
 812 }
 813
 814 add_driver mac80211