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 iw() {
  18         command iw $@ || logger -t mac80211 "Failed command: iw $@"
  19 }
  20
  21 drv_mac80211_init_device_config() {
  22         hostapd_common_add_device_config
  23
  24         config_add_string path phy 'macaddr:macaddr'
  25         config_add_string hwmode
  26         config_add_int beacon_int chanbw frag rts
  27         config_add_int rxantenna txantenna antenna_gain txpower distance
  28         config_add_boolean noscan ht_coex
  29         config_add_array ht_capab
  30         config_add_array channels
  31         config_add_boolean \
  32                 rxldpc \
  33                 short_gi_80 \
  34                 short_gi_160 \
  35                 tx_stbc_2by1 \
  36                 su_beamformer \
  37                 su_beamformee \
  38                 mu_beamformer \
  39                 mu_beamformee \
  40                 vht_txop_ps \
  41                 htc_vht \
  42                 rx_antenna_pattern \
  43                 tx_antenna_pattern
  44         config_add_int vht_max_a_mpdu_len_exp vht_max_mpdu vht_link_adapt vht160 rx_stbc tx_stbc
  45         config_add_boolean \
  46                 ldpc \
  47                 greenfield \
  48                 short_gi_20 \
  49                 short_gi_40 \
  50                 max_amsdu \
  51                 dsss_cck_40
  52 }
  53
  54 drv_mac80211_init_iface_config() {
  55         hostapd_common_add_bss_config
  56
  57         config_add_string 'macaddr:macaddr' ifname
  58
  59         config_add_boolean wds powersave
  60         config_add_int maxassoc
  61         config_add_int max_listen_int
  62         config_add_int dtim_period
  63         config_add_int start_disabled
  64
  65         # mesh
  66         config_add_string mesh_id
  67         config_add_int $MP_CONFIG_INT
  68         config_add_boolean $MP_CONFIG_BOOL
  69         config_add_string $MP_CONFIG_STRING
  70 }
  71
  72 mac80211_add_capabilities() {
  73         local __var="$1"; shift
  74         local __mask="$1"; shift
  75         local __out= oifs
  76
  77         oifs="$IFS"
  78         IFS=:
  79         for capab in "$@"; do
  80                 set -- $capab
  81
  82                 [ "$(($4))" -gt 0 ] || continue
  83                 [ "$(($__mask & $2))" -eq "$((${3:-$2}))" ] || continue
  84                 __out="$__out[$1]"
  85         done
  86         IFS="$oifs"
  87
  88         export -n -- "$__var=$__out"
  89 }
  90
  91 mac80211_hostapd_setup_base() {
  92         local phy="$1"
  93
  94         json_select config
  95
  96         [ "$auto_channel" -gt 0 ] && channel=acs_survey
  97         [ "$auto_channel" -gt 0 ] && json_get_values channel_list channels
  98
  99         json_get_vars noscan ht_coex
 100         json_get_values ht_capab_list ht_capab
 101
 102         ieee80211n=1
 103         ht_capab=
 104         case "$htmode" in
 105                 VHT20|HT20) ;;
 106                 HT40*|VHT40|VHT80|VHT160)
 107                         case "$hwmode" in
 108                                 a)
 109                                         case "$(( ($channel / 4) % 2 ))" in
 110                                                 1) ht_capab="[HT40+]";;
 111                                                 0) ht_capab="[HT40-]";;
 112                                         esac
 113                                 ;;
 114                                 *)
 115                                         case "$htmode" in
 116                                                 HT40+) ht_capab="[HT40+]";;
 117                                                 HT40-) ht_capab="[HT40-]";;
 118                                                 *)
 119                                                         if [ "$channel" -lt 7 ]; then
 120                                                                 ht_capab="[HT40+]"
 121                                                         else
 122                                                                 ht_capab="[HT40-]"
 123                                                         fi
 124                                                 ;;
 125                                         esac
 126                                 ;;
 127                         esac
 128                         [ "$auto_channel" -gt 0 ] && ht_capab="[HT40+]"
 129                 ;;
 130                 *) ieee80211n= ;;
 131         esac
 132
 133         [ -n "$ieee80211n" ] && {
 134                 append base_cfg "ieee80211n=1" "$N"
 135
 136                 set_default ht_coex 0
 137                 append base_cfg "ht_coex=$ht_coex" "$N"
 138
 139                 json_get_vars \
 140                         ldpc:1 \
 141                         greenfield:0 \
 142                         short_gi_20:1 \
 143                         short_gi_40:1 \
 144                         tx_stbc:1 \
 145                         rx_stbc:3 \
 146                         max_amsdu:1 \
 147                         dsss_cck_40:1
 148
 149                 ht_cap_mask=0
 150                 for cap in $(iw phy "$phy" info | grep 'Capabilities:' | cut -d: -f2); do
 151                         ht_cap_mask="$(($ht_cap_mask | $cap))"
 152                 done
 153
 154                 cap_rx_stbc=$((($ht_cap_mask >> 8) & 3))
 155                 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
 156                 ht_cap_mask="$(( ($ht_cap_mask & ~(0x300)) | ($cap_rx_stbc << 8) ))"
 157
 158                 mac80211_add_capabilities ht_capab_flags $ht_cap_mask \
 159                         LDPC:0x1::$ldpc \
 160                         GF:0x10::$greenfield \
 161                         SHORT-GI-20:0x20::$short_gi_20 \
 162                         SHORT-GI-40:0x40::$short_gi_40 \
 163                         TX-STBC:0x80::$tx_stbc \
 164                         RX-STBC1:0x300:0x100:1 \
 165                         RX-STBC12:0x300:0x200:1 \
 166                         RX-STBC123:0x300:0x300:1 \
 167                         MAX-AMSDU-7935:0x800::$max_amsdu \
 168                         DSSS_CCK-40:0x1000::$dsss_cck_40
 169
 170                 ht_capab="$ht_capab$ht_capab_flags"
 171                 [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
 172         }
 173
 174         # 802.11ac
 175         enable_ac=0
 176         idx="$channel"
 177         case "$htmode" in
 178                 VHT20) enable_ac=1;;
 179                 VHT40)
 180                         case "$(( ($channel / 4) % 2 ))" in
 181                                 1) idx=$(($channel + 2));;
 182                                 0) idx=$(($channel - 2));;
 183                         esac
 184                         enable_ac=1
 185                         append base_cfg "vht_oper_chwidth=0" "$N"
 186                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 187                 ;;
 188                 VHT80)
 189                         case "$(( ($channel / 4) % 4 ))" in
 190                                 1) idx=$(($channel + 6));;
 191                                 2) idx=$(($channel + 2));;
 192                                 3) idx=$(($channel - 2));;
 193                                 0) idx=$(($channel - 6));;
 194                         esac
 195                         enable_ac=1
 196                         append base_cfg "vht_oper_chwidth=1" "$N"
 197                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 198                 ;;
 199                 VHT160)
 200                         case "$channel" in
 201                                 36|40|44|48|52|56|60|64) idx=50;;
 202                                 100|104|108|112|116|120|124|128) idx=114;;
 203                         esac
 204                         enable_ac=1
 205                         append base_cfg "vht_oper_chwidth=2" "$N"
 206                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 207                 ;;
 208         esac
 209
 210         if [ "$enable_ac" != "0" ]; then
 211                 json_get_vars \
 212                         rxldpc:1 \
 213                         short_gi_80:1 \
 214                         short_gi_160:1 \
 215                         tx_stbc_2by1:1 \
 216                         su_beamformer:1 \
 217                         su_beamformee:1 \
 218                         mu_beamformer:1 \
 219                         mu_beamformee:1 \
 220                         vht_txop_ps:1 \
 221                         htc_vht:1 \
 222                         rx_antenna_pattern:1 \
 223                         tx_antenna_pattern:1 \
 224                         vht_max_a_mpdu_len_exp:7 \
 225                         vht_max_mpdu:11454 \
 226                         rx_stbc:4 \
 227                         vht_link_adapt:3 \
 228                         vht160:2
 229
 230                 append base_cfg "ieee80211ac=1" "$N"
 231                 vht_cap=0
 232                 for cap in $(iw phy "$phy" info | awk -F "[()]" '/VHT Capabilities/ { print $2 }'); do
 233                         vht_cap="$(($vht_cap | $cap))"
 234                 done
 235
 236                 cap_rx_stbc=$((($vht_cap >> 8) & 7))
 237                 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
 238                 vht_cap="$(( ($vht_cap & ~(0x700)) | ($cap_rx_stbc << 8) ))"
 239
 240                 mac80211_add_capabilities vht_capab $vht_cap \
 241                         RXLDPC:0x10::$rxldpc \
 242                         SHORT-GI-80:0x20::$short_gi_80 \
 243                         SHORT-GI-160:0x40::$short_gi_160 \
 244                         TX-STBC-2BY1:0x80::$tx_stbc_2by1 \
 245                         SU-BEAMFORMER:0x800::$su_beamformer \
 246                         SU-BEAMFORMEE:0x1000::$su_beamformee \
 247                         MU-BEAMFORMER:0x80000::$mu_beamformer \
 248                         MU-BEAMFORMEE:0x100000::$mu_beamformee \
 249                         VHT-TXOP-PS:0x200000::$vht_txop_ps \
 250                         HTC-VHT:0x400000::$htc_vht \
 251                         RX-ANTENNA-PATTERN:0x10000000::$rx_antenna_pattern \
 252                         TX-ANTENNA-PATTERN:0x20000000::$tx_antenna_pattern \
 253                         RX-STBC-1:0x700:0x100:1 \
 254                         RX-STBC-12:0x700:0x200:1 \
 255                         RX-STBC-123:0x700:0x300:1 \
 256                         RX-STBC-1234:0x700:0x400:1 \
 257
 258                 # supported Channel widths
 259                 vht160_hw=0
 260                 [ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \
 261                         vht160_hw=1
 262                 [ "$(($vht_cap & 12))" -eq 8 -a 2 -le "$vht160" ] && \
 263                         vht160_hw=2
 264                 [ "$vht160_hw" = 1 ] && vht_capab="$vht_capab[VHT160]"
 265                 [ "$vht160_hw" = 2 ] && vht_capab="$vht_capab[VHT160-80PLUS80]"
 266
 267                 # maximum MPDU length
 268                 vht_max_mpdu_hw=3895
 269                 [ "$(($vht_cap & 3))" -ge 1 -a 7991 -le "$vht_max_mpdu" ] && \
 270                         vht_max_mpdu_hw=7991
 271                 [ "$(($vht_cap & 3))" -ge 2 -a 11454 -le "$vht_max_mpdu" ] && \
 272                         vht_max_mpdu_hw=11454
 273                 [ "$vht_max_mpdu_hw" != 3895 ] && \
 274                         vht_capab="$vht_capab[MAX-MPDU-$vht_max_mpdu_hw]"
 275
 276                 # maximum A-MPDU length exponent
 277                 vht_max_a_mpdu_len_exp_hw=0
 278                 [ "$(($vht_cap & 58720256))" -ge 8388608 -a 1 -le "$vht_max_a_mpdu_len_exp" ] && \
 279                         vht_max_a_mpdu_len_exp_hw=1
 280                 [ "$(($vht_cap & 58720256))" -ge 16777216 -a 2 -le "$vht_max_a_mpdu_len_exp" ] && \
 281                         vht_max_a_mpdu_len_exp_hw=2
 282                 [ "$(($vht_cap & 58720256))" -ge 25165824 -a 3 -le "$vht_max_a_mpdu_len_exp" ] && \
 283                         vht_max_a_mpdu_len_exp_hw=3
 284                 [ "$(($vht_cap & 58720256))" -ge 33554432 -a 4 -le "$vht_max_a_mpdu_len_exp" ] && \
 285                         vht_max_a_mpdu_len_exp_hw=4
 286                 [ "$(($vht_cap & 58720256))" -ge 41943040 -a 5 -le "$vht_max_a_mpdu_len_exp" ] && \
 287                         vht_max_a_mpdu_len_exp_hw=5
 288                 [ "$(($vht_cap & 58720256))" -ge 50331648 -a 6 -le "$vht_max_a_mpdu_len_exp" ] && \
 289                         vht_max_a_mpdu_len_exp_hw=6
 290                 [ "$(($vht_cap & 58720256))" -ge 58720256 -a 7 -le "$vht_max_a_mpdu_len_exp" ] && \
 291                         vht_max_a_mpdu_len_exp_hw=7
 292                 vht_capab="$vht_capab[MAX-A-MPDU-LEN-EXP$vht_max_a_mpdu_len_exp_hw]"
 293
 294                 # whether or not the STA supports link adaptation using VHT variant
 295                 vht_link_adapt_hw=0
 296                 [ "$(($vht_cap & 201326592))" -ge 134217728 -a 2 -le "$vht_link_adapt" ] && \
 297                         vht_link_adapt_hw=2
 298                 [ "$(($vht_cap & 201326592))" -ge 201326592 -a 3 -le "$vht_link_adapt" ] && \
 299                         vht_link_adapt_hw=3
 300                 [ "$vht_link_adapt_hw" != 0 ] && \
 301                         vht_capab="$vht_capab[VHT-LINK-ADAPT-$vht_link_adapt_hw]"
 302
 303                 [ -n "$vht_capab" ] && append base_cfg "vht_capab=$vht_capab" "$N"
 304         fi
 305
 306         hostapd_prepare_device_config "$hostapd_conf_file" nl80211
 307         cat >> "$hostapd_conf_file" <<EOF
 308 ${channel:+channel=$channel}
 309 ${channel_list:+chanlist=$channel_list}
 310 ${noscan:+noscan=$noscan}
 311 $base_cfg
 312
 313 EOF
 314         json_select ..
 315 }
 316
 317 mac80211_hostapd_setup_bss() {
 318         local phy="$1"
 319         local ifname="$2"
 320         local macaddr="$3"
 321         local type="$4"
 322
 323         hostapd_cfg=
 324         append hostapd_cfg "$type=$ifname" "$N"
 325
 326         hostapd_set_bss_options hostapd_cfg "$vif" || return 1
 327         json_get_vars wds dtim_period max_listen_int start_disabled
 328
 329         set_default wds 0
 330         set_default start_disabled 0
 331
 332         [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
 333         [ "$staidx" -gt 0 -o "$start_disabled" -eq 1 ] && append hostapd_cfg "start_disabled=1" "$N"
 334
 335         cat >> /var/run/hostapd-$phy.conf <<EOF
 336 $hostapd_cfg
 337 bssid=$macaddr
 338 ${dtim_period:+dtim_period=$dtim_period}
 339 ${max_listen_int:+max_listen_interval=$max_listen_int}
 340 EOF
 341 }
 342
 343 mac80211_get_addr() {
 344         local phy="$1"
 345         local idx="$(($2 + 1))"
 346
 347         head -n $(($macidx + 1)) /sys/class/ieee80211/${phy}/addresses | tail -n1
 348 }
 349
 350 mac80211_generate_mac() {
 351         local phy="$1"
 352         local id="${macidx:-0}"
 353
 354         local ref="$(cat /sys/class/ieee80211/${phy}/macaddress)"
 355         local mask="$(cat /sys/class/ieee80211/${phy}/address_mask)"
 356
 357         [ "$mask" = "00:00:00:00:00:00" ] && {
 358                 mask="ff:ff:ff:ff:ff:ff";
 359
 360                 [ "$(wc -l < /sys/class/ieee80211/${phy}/addresses)" -gt 1 ] && {
 361                         addr="$(mac80211_get_addr "$phy" "$id")"
 362                         [ -n "$addr" ] && {
 363                                 echo "$addr"
 364                                 return
 365                         }
 366                 }
 367         }
 368
 369         local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
 370
 371         local mask1=$1
 372         local mask6=$6
 373
 374         local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
 375
 376         macidx=$(($id + 1))
 377         [ "$((0x$mask1))" -gt 0 ] && {
 378                 b1="0x$1"
 379                 [ "$id" -gt 0 ] && \
 380                         b1=$(($b1 ^ ((($id - 1) << 2) | 0x2)))
 381                 printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6
 382                 return
 383         }
 384
 385         [ "$((0x$mask6))" -lt 255 ] && {
 386                 printf "%s:%s:%s:%s:%s:%02x" $1 $2 $3 $4 $5 $(( 0x$6 ^ $id ))
 387                 return
 388         }
 389
 390         off2=$(( (0x$6 + $id) / 0x100 ))
 391         printf "%s:%s:%s:%s:%02x:%02x" \
 392                 $1 $2 $3 $4 \
 393                 $(( (0x$5 + $off2) % 0x100 )) \
 394                 $(( (0x$6 + $id) % 0x100 ))
 395 }
 396
 397 find_phy() {
 398         [ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0
 399         [ -n "$path" ] && {
 400                 for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
 401                         case "$(readlink -f /sys/class/ieee80211/$phy/device)" in
 402                                 *$path) return 0;;
 403                         esac
 404                 done
 405         }
 406         [ -n "$macaddr" ] && {
 407                 for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
 408                         grep -i -q "$macaddr" "/sys/class/ieee80211/${phy}/macaddress" && return 0
 409                 done
 410         }
 411         return 1
 412 }
 413
 414 mac80211_check_ap() {
 415         has_ap=1
 416 }
 417
 418 mac80211_iw_interface_add() {
 419         local phy="$1"
 420         local ifname="$2"
 421         local type="$3"
 422         local wdsflag="$4"
 423         local rc
 424
 425         iw phy "$phy" interface add "$ifname" type "$type" $wdsflag
 426         rc="$?"
 427
 428         [ "$rc" = 233 ] && {
 429                 # Device might have just been deleted, give the kernel some time to finish cleaning it up
 430                 sleep 1
 431
 432                 iw phy "$phy" interface add "$ifname" type "$type" $wdsflag
 433                 rc="$?"
 434         }
 435
 436         [ "$rc" = 233 ] && {
 437                 # Device might not support virtual interfaces, so the interface never got deleted in the first place.
 438                 # Check if the interface already exists, and avoid failing in this case.
 439                 ip link show dev "$ifname" >/dev/null 2>/dev/null && rc=0
 440         }
 441
 442         [ "$rc" != 0 ] && wireless_setup_failed INTERFACE_CREATION_FAILED
 443         return $rc
 444 }
 445
 446 mac80211_prepare_vif() {
 447         json_select config
 448
 449         json_get_vars ifname mode ssid wds powersave macaddr
 450
 451         [ -n "$ifname" ] || ifname="wlan${phy#phy}${if_idx:+-$if_idx}"
 452         if_idx=$((${if_idx:-0} + 1))
 453
 454         set_default wds 0
 455         set_default powersave 0
 456
 457         json_select ..
 458
 459         [ -n "$macaddr" ] || {
 460                 macaddr="$(mac80211_generate_mac $phy)"
 461                 macidx="$(($macidx + 1))"
 462         }
 463
 464         json_add_object data
 465         json_add_string ifname "$ifname"
 466         json_close_object
 467         json_select config
 468
 469         # It is far easier to delete and create the desired interface
 470         case "$mode" in
 471                 adhoc)
 472                         mac80211_iw_interface_add "$phy" "$ifname" adhoc || return
 473                 ;;
 474                 ap)
 475                         # Hostapd will handle recreating the interface and
 476                         # subsequent virtual APs belonging to the same PHY
 477                         if [ -n "$hostapd_ctrl" ]; then
 478                                 type=bss
 479                         else
 480                                 type=interface
 481                         fi
 482
 483                         mac80211_hostapd_setup_bss "$phy" "$ifname" "$macaddr" "$type" || return
 484
 485                         [ -n "$hostapd_ctrl" ] || {
 486                                 mac80211_iw_interface_add "$phy" "$ifname" __ap || return
 487                                 hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd/$ifname}"
 488                         }
 489                 ;;
 490                 mesh)
 491                         mac80211_iw_interface_add "$phy" "$ifname" mp || return
 492                 ;;
 493                 monitor)
 494                         mac80211_iw_interface_add "$phy" "$ifname" monitor || return
 495                 ;;
 496                 sta)
 497                         local wdsflag=
 498                         staidx="$(($staidx + 1))"
 499                         [ "$wds" -gt 0 ] && wdsflag="4addr on"
 500                         mac80211_iw_interface_add "$phy" "$ifname" managed "$wdsflag" || return
 501                         [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
 502                         iw "$ifname" set power_save "$powersave"
 503                 ;;
 504         esac
 505
 506         case "$mode" in
 507                 monitor|mesh)
 508                         [ "$auto_channel" -gt 0 ] || iw dev "$ifname" set channel "$channel" $htmode
 509                 ;;
 510         esac
 511
 512         if [ "$mode" != "ap" ]; then
 513                 # ALL ap functionality will be passed to hostapd
 514                 # All interfaces must have unique mac addresses
 515                 # which can either be explicitly set in the device
 516                 # section, or automatically generated
 517                 ip link set dev "$ifname" address "$macaddr"
 518         fi
 519
 520         json_select ..
 521 }
 522
 523 mac80211_setup_supplicant() {
 524         wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1
 525         if [ "$mode" = "sta" ]; then
 526                 wpa_supplicant_add_network "$ifname"
 527         else
 528                 wpa_supplicant_add_network "$ifname" "$freq" "$htmode" "$noscan"
 529         fi
 530         wpa_supplicant_run "$ifname" ${hostapd_ctrl:+-H $hostapd_ctrl}
 531 }
 532
 533 mac80211_setup_supplicant_noctl() {
 534         wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1
 535         wpa_supplicant_add_network "$ifname" "$freq" "$htmode" "$noscan"
 536         wpa_supplicant_run "$ifname"
 537 }
 538
 539 mac80211_setup_adhoc_htmode() {
 540         case "$htmode" in
 541                 VHT20|HT20) ibss_htmode=HT20;;
 542                 HT40*|VHT40|VHT160)
 543                         case "$hwmode" in
 544                                 a)
 545                                         case "$(( ($channel / 4) % 2 ))" in
 546                                                 1) ibss_htmode="HT40+" ;;
 547                                                 0) ibss_htmode="HT40-";;
 548                                         esac
 549                                 ;;
 550                                 *)
 551                                         case "$htmode" in
 552                                                 HT40+) ibss_htmode="HT40+";;
 553                                                 HT40-) ibss_htmode="HT40-";;
 554                                                 *)
 555                                                         if [ "$channel" -lt 7 ]; then
 556                                                                 ibss_htmode="HT40+"
 557                                                         else
 558                                                                 ibss_htmode="HT40-"
 559                                                         fi
 560                                                 ;;
 561                                         esac
 562                                 ;;
 563                         esac
 564                         [ "$auto_channel" -gt 0 ] && ibss_htmode="HT40+"
 565                 ;;
 566                 VHT80)
 567                         ibss_htmode="80MHZ"
 568                 ;;
 569                 NONE|NOHT)
 570                         ibss_htmode="NOHT"
 571                 ;;
 572                 *) ibss_htmode="" ;;
 573         esac
 574
 575 }
 576
 577 mac80211_setup_adhoc() {
 578         json_get_vars bssid ssid key mcast_rate
 579
 580         keyspec=
 581         [ "$auth_type" = "wep" ] && {
 582                 set_default key 1
 583                 case "$key" in
 584                         [1234])
 585                                 local idx
 586                                 for idx in 1 2 3 4; do
 587                                         json_get_var ikey "key$idx"
 588
 589                                         [ -n "$ikey" ] && {
 590                                                 ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
 591                                                 [ $idx -eq $key ] && ikey="d:$ikey"
 592                                                 append keyspec "$ikey"
 593                                         }
 594                                 done
 595                         ;;
 596                         *)
 597                                 append keyspec "d:0:$(prepare_key_wep "$key")"
 598                         ;;
 599                 esac
 600         }
 601
 602         brstr=
 603         for br in $basic_rate_list; do
 604                 wpa_supplicant_add_rate brstr "$br"
 605         done
 606
 607         mcval=
 608         [ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 609
 610         iw dev "$ifname" ibss join "$ssid" $freq $ibss_htmode fixed-freq $bssid \
 611                 beacon-interval $beacon_int \
 612                 ${brstr:+basic-rates $brstr} \
 613                 ${mcval:+mcast-rate $mcval} \
 614                 ${keyspec:+keys $keyspec}
 615 }
 616
 617 mac80211_setup_mesh() {
 618         json_get_vars ssid mesh_id mcast_rate
 619
 620         mcval=
 621         [ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 622         [ -n "$mesh_id" ] && ssid="$mesh_id"
 623
 624         case "$htmode" in
 625                 VHT20|HT20) mesh_htmode=HT20;;
 626                 HT40*|VHT40)
 627                         case "$hwmode" in
 628                                 a)
 629                                         case "$(( ($channel / 4) % 2 ))" in
 630                                                 1) mesh_htmode="HT40+" ;;
 631                                                 0) mesh_htmode="HT40-";;
 632                                         esac
 633                                 ;;
 634                                 *)
 635                                         case "$htmode" in
 636                                                 HT40+) mesh_htmode="HT40+";;
 637                                                 HT40-) mesh_htmode="HT40-";;
 638                                                 *)
 639                                                         if [ "$channel" -lt 7 ]; then
 640                                                                 mesh_htmode="HT40+"
 641                                                         else
 642                                                                 mesh_htmode="HT40-"
 643                                                         fi
 644                                                 ;;
 645                                         esac
 646                                 ;;
 647                         esac
 648                 ;;
 649                 VHT80)
 650                         mesh_htmode="80Mhz"
 651                 ;;
 652                 VHT160)
 653                         mesh_htmode="160Mhz"
 654                 ;;
 655                 *) mesh_htmode="NOHT" ;;
 656         esac
 657         iw dev "$ifname" mesh join "$ssid" freq $freq $mesh_htmode \
 658                 ${mcval:+mcast-rate $mcval} \
 659                 beacon-interval $beacon_int
 660 }
 661
 662 mac80211_setup_vif() {
 663         local name="$1"
 664         local failed
 665
 666         json_select data
 667         json_get_vars ifname
 668         json_select ..
 669
 670         json_select config
 671         json_get_vars mode
 672         json_get_var vif_txpower txpower
 673
 674         ip link set dev "$ifname" up || {
 675                 wireless_setup_vif_failed IFUP_ERROR
 676                 json_select ..
 677                 return
 678         }
 679
 680         set_default vif_txpower "$txpower"
 681         [ -z "$vif_txpower" ] || iw dev "$ifname" set txpower fixed "${vif_txpower%%.*}00"
 682
 683         case "$mode" in
 684                 mesh)
 685                         wireless_vif_parse_encryption
 686                         freq="$(get_freq "$phy" "$channel")"
 687                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ] || chan_is_dfs "$phy" "$channel"; then
 688                                 mac80211_setup_supplicant || failed=1
 689                         else
 690                                 mac80211_setup_mesh
 691                         fi
 692                         for var in $MP_CONFIG_INT $MP_CONFIG_BOOL $MP_CONFIG_STRING; do
 693                                 json_get_var mp_val "$var"
 694                                 [ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$var" "$mp_val"
 695                         done
 696                 ;;
 697                 adhoc)
 698                         wireless_vif_parse_encryption
 699                         mac80211_setup_adhoc_htmode
 700                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
 701                                 freq="$(get_freq "$phy" "$channel")"
 702                                 mac80211_setup_supplicant_noctl || failed=1
 703                         else
 704                                 mac80211_setup_adhoc
 705                         fi
 706                 ;;
 707                 sta)
 708                         mac80211_setup_supplicant || failed=1
 709                 ;;
 710         esac
 711
 712         json_select ..
 713         [ -n "$failed" ] || wireless_add_vif "$name" "$ifname"
 714 }
 715
 716 get_freq() {
 717         local phy="$1"
 718         local chan="$2"
 719         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
 720 }
 721
 722 chan_is_dfs() {
 723         local phy="$1"
 724         local chan="$2"
 725         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep -q "MHz.*radar detection"
 726         return $!
 727 }
 728
 729 mac80211_interface_cleanup() {
 730         local phy="$1"
 731
 732         for wdev in $(list_phy_interfaces "$phy"); do
 733                 ip link set dev "$wdev" down 2>/dev/null
 734                 iw dev "$wdev" del
 735         done
 736 }
 737
 738 drv_mac80211_cleanup() {
 739         hostapd_common_cleanup
 740 }
 741
 742 drv_mac80211_setup() {
 743         json_select config
 744         json_get_vars \
 745                 phy macaddr path \
 746                 country chanbw distance \
 747                 txpower antenna_gain \
 748                 rxantenna txantenna \
 749                 frag rts beacon_int:100 htmode
 750         json_get_values basic_rate_list basic_rate
 751         json_select ..
 752
 753         find_phy || {
 754                 echo "Could not find PHY for device '$1'"
 755                 wireless_set_retry 0
 756                 return 1
 757         }
 758
 759         wireless_set_data phy="$phy"
 760         mac80211_interface_cleanup "$phy"
 761
 762         # convert channel to frequency
 763         [ "$auto_channel" -gt 0 ] || freq="$(get_freq "$phy" "$channel")"
 764
 765         [ -n "$country" ] && {
 766                 iw reg get | grep -q "^country $country:" || {
 767                         iw reg set "$country"
 768                         sleep 1
 769                 }
 770         }
 771
 772         hostapd_conf_file="/var/run/hostapd-$phy.conf"
 773
 774         no_ap=1
 775         macidx=0
 776         staidx=0
 777
 778         [ -n "$chanbw" ] && {
 779                 for file in /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode; do
 780                         [ -f "$file" ] && echo "$chanbw" > "$file"
 781                 done
 782         }
 783
 784         set_default rxantenna all
 785         set_default txantenna all
 786         set_default distance 0
 787         set_default antenna_gain 0
 788
 789         iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
 790         iw phy "$phy" set antenna_gain $antenna_gain
 791         iw phy "$phy" set distance "$distance"
 792
 793         [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
 794         [ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
 795
 796         has_ap=
 797         hostapd_ctrl=
 798         for_each_interface "ap" mac80211_check_ap
 799
 800         rm -f "$hostapd_conf_file"
 801         [ -n "$has_ap" ] && mac80211_hostapd_setup_base "$phy"
 802
 803         for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
 804         for_each_interface "ap" mac80211_prepare_vif
 805
 806         [ -n "$hostapd_ctrl" ] && {
 807                 /usr/sbin/hostapd -s -P /var/run/wifi-$phy.pid -B "$hostapd_conf_file"
 808                 ret="$?"
 809                 wireless_add_process "$(cat /var/run/wifi-$phy.pid)" "/usr/sbin/hostapd" 1
 810                 [ "$ret" != 0 ] && {
 811                         wireless_setup_failed HOSTAPD_START_FAILED
 812                         return
 813                 }
 814         }
 815
 816         for_each_interface "ap sta adhoc mesh monitor" mac80211_setup_vif
 817
 818         wireless_set_up
 819 }
 820
 821 list_phy_interfaces() {
 822         local phy="$1"
 823         if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then
 824                 ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null;
 825         else
 826                 ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g'
 827         fi
 828 }
 829
 830 drv_mac80211_teardown() {
 831         wireless_process_kill_all
 832
 833         json_select data
 834         json_get_vars phy
 835         json_select ..
 836
 837         mac80211_interface_cleanup "$phy"
 838 }
 839
 840 add_driver mac80211