package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh

   1 #!/bin/sh
   2 . /lib/netifd/netifd-wireless.sh
   3 . /lib/netifd/hostapd.sh
   4 . /lib/netifd/mac80211.sh
   5
   6 init_wireless_driver "$@"
   7
   8 MP_CONFIG_INT="mesh_retry_timeout mesh_confirm_timeout mesh_holding_timeout mesh_max_peer_links
   9                mesh_max_retries mesh_ttl mesh_element_ttl mesh_hwmp_max_preq_retries
  10                mesh_path_refresh_time mesh_min_discovery_timeout mesh_hwmp_active_path_timeout
  11                mesh_hwmp_preq_min_interval mesh_hwmp_net_diameter_traversal_time mesh_hwmp_rootmode
  12                mesh_hwmp_rann_interval mesh_gate_announcements mesh_sync_offset_max_neighor
  13                mesh_rssi_threshold mesh_hwmp_active_path_to_root_timeout mesh_hwmp_root_interval
  14                mesh_hwmp_confirmation_interval mesh_awake_window mesh_plink_timeout"
  15 MP_CONFIG_BOOL="mesh_auto_open_plinks mesh_fwding"
  16 MP_CONFIG_STRING="mesh_power_mode"
  17
  18 NEWAPLIST=
  19 OLDAPLIST=
  20 NEWSPLIST=
  21 OLDSPLIST=
  22 NEWUMLIST=
  23 OLDUMLIST=
  24
  25 drv_mac80211_init_device_config() {
  26         hostapd_common_add_device_config
  27
  28         config_add_string path phy 'macaddr:macaddr'
  29         config_add_string hwmode
  30         config_add_string tx_burst
  31         config_add_int beacon_int chanbw frag rts
  32         config_add_int rxantenna txantenna antenna_gain txpower distance
  33         config_add_boolean noscan ht_coex acs_exclude_dfs
  34         config_add_array ht_capab
  35         config_add_array channels
  36         config_add_boolean \
  37                 rxldpc \
  38                 short_gi_80 \
  39                 short_gi_160 \
  40                 tx_stbc_2by1 \
  41                 su_beamformer \
  42                 su_beamformee \
  43                 mu_beamformer \
  44                 mu_beamformee \
  45                 vht_txop_ps \
  46                 htc_vht \
  47                 rx_antenna_pattern \
  48                 tx_antenna_pattern
  49         config_add_int vht_max_a_mpdu_len_exp vht_max_mpdu vht_link_adapt vht160 rx_stbc tx_stbc
  50         config_add_boolean \
  51                 ldpc \
  52                 greenfield \
  53                 short_gi_20 \
  54                 short_gi_40 \
  55                 max_amsdu \
  56                 dsss_cck_40
  57 }
  58
  59 drv_mac80211_init_iface_config() {
  60         hostapd_common_add_bss_config
  61
  62         config_add_string 'macaddr:macaddr' ifname
  63
  64         config_add_boolean wds powersave enable
  65         config_add_int maxassoc
  66         config_add_int max_listen_int
  67         config_add_int dtim_period
  68         config_add_int start_disabled
  69
  70         # mesh
  71         config_add_string mesh_id
  72         config_add_int $MP_CONFIG_INT
  73         config_add_boolean $MP_CONFIG_BOOL
  74         config_add_string $MP_CONFIG_STRING
  75 }
  76
  77 mac80211_add_capabilities() {
  78         local __var="$1"; shift
  79         local __mask="$1"; shift
  80         local __out= oifs
  81
  82         oifs="$IFS"
  83         IFS=:
  84         for capab in "$@"; do
  85                 set -- $capab
  86
  87                 [ "$(($4))" -gt 0 ] || continue
  88                 [ "$(($__mask & $2))" -eq "$((${3:-$2}))" ] || continue
  89                 __out="$__out[$1]"
  90         done
  91         IFS="$oifs"
  92
  93         export -n -- "$__var=$__out"
  94 }
  95
  96 mac80211_hostapd_setup_base() {
  97         local phy="$1"
  98
  99         json_select config
 100
 101         [ "$auto_channel" -gt 0 ] && channel=acs_survey
 102         [ "$auto_channel" -gt 0 ] && json_get_values channel_list channels
 103
 104         [ "$auto_channel" -gt 0 ] && json_get_vars acs_exclude_dfs
 105         [ -n "$acs_exclude_dfs" ] && [ "$acs_exclude_dfs" -gt 0 ] &&
 106                 append base_cfg "acs_exclude_dfs=1" "$N"
 107
 108         json_get_vars noscan ht_coex
 109         json_get_values ht_capab_list ht_capab tx_burst
 110
 111         set_default noscan 0
 112
 113         [ "$noscan" -gt 0 ] && hostapd_noscan=1
 114         [ "$tx_burst" = 0 ] && tx_burst=
 115
 116         ieee80211n=1
 117         ht_capab=
 118         case "$htmode" in
 119                 VHT20|HT20) ;;
 120                 HT40*|VHT40|VHT80|VHT160)
 121                         case "$hwmode" in
 122                                 a)
 123                                         case "$(( ($channel / 4) % 2 ))" in
 124                                                 1) ht_capab="[HT40+]";;
 125                                                 0) ht_capab="[HT40-]";;
 126                                         esac
 127                                 ;;
 128                                 *)
 129                                         case "$htmode" in
 130                                                 HT40+) ht_capab="[HT40+]";;
 131                                                 HT40-) ht_capab="[HT40-]";;
 132                                                 *)
 133                                                         if [ "$channel" -lt 7 ]; then
 134                                                                 ht_capab="[HT40+]"
 135                                                         else
 136                                                                 ht_capab="[HT40-]"
 137                                                         fi
 138                                                 ;;
 139                                         esac
 140                                 ;;
 141                         esac
 142                         [ "$auto_channel" -gt 0 ] && ht_capab="[HT40+]"
 143                 ;;
 144                 *) ieee80211n= ;;
 145         esac
 146
 147         [ -n "$ieee80211n" ] && {
 148                 append base_cfg "ieee80211n=1" "$N"
 149
 150                 set_default ht_coex 0
 151                 append base_cfg "ht_coex=$ht_coex" "$N"
 152
 153                 json_get_vars \
 154                         ldpc:1 \
 155                         greenfield:0 \
 156                         short_gi_20:1 \
 157                         short_gi_40:1 \
 158                         tx_stbc:1 \
 159                         rx_stbc:3 \
 160                         max_amsdu:1 \
 161                         dsss_cck_40:1
 162
 163                 ht_cap_mask=0
 164                 for cap in $(iw phy "$phy" info | grep 'Capabilities:' | cut -d: -f2); do
 165                         ht_cap_mask="$(($ht_cap_mask | $cap))"
 166                 done
 167
 168                 cap_rx_stbc=$((($ht_cap_mask >> 8) & 3))
 169                 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
 170                 ht_cap_mask="$(( ($ht_cap_mask & ~(0x300)) | ($cap_rx_stbc << 8) ))"
 171
 172                 mac80211_add_capabilities ht_capab_flags $ht_cap_mask \
 173                         LDPC:0x1::$ldpc \
 174                         GF:0x10::$greenfield \
 175                         SHORT-GI-20:0x20::$short_gi_20 \
 176                         SHORT-GI-40:0x40::$short_gi_40 \
 177                         TX-STBC:0x80::$tx_stbc \
 178                         RX-STBC1:0x300:0x100:1 \
 179                         RX-STBC12:0x300:0x200:1 \
 180                         RX-STBC123:0x300:0x300:1 \
 181                         MAX-AMSDU-7935:0x800::$max_amsdu \
 182                         DSSS_CCK-40:0x1000::$dsss_cck_40
 183
 184                 ht_capab="$ht_capab$ht_capab_flags"
 185                 [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
 186         }
 187
 188         # 802.11ac
 189         enable_ac=0
 190         idx="$channel"
 191         case "$htmode" in
 192                 VHT20) enable_ac=1;;
 193                 VHT40)
 194                         case "$(( ($channel / 4) % 2 ))" in
 195                                 1) idx=$(($channel + 2));;
 196                                 0) idx=$(($channel - 2));;
 197                         esac
 198                         enable_ac=1
 199                         append base_cfg "vht_oper_chwidth=0" "$N"
 200                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 201                 ;;
 202                 VHT80)
 203                         case "$(( ($channel / 4) % 4 ))" in
 204                                 1) idx=$(($channel + 6));;
 205                                 2) idx=$(($channel + 2));;
 206                                 3) idx=$(($channel - 2));;
 207                                 0) idx=$(($channel - 6));;
 208                         esac
 209                         enable_ac=1
 210                         append base_cfg "vht_oper_chwidth=1" "$N"
 211                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 212                 ;;
 213                 VHT160)
 214                         case "$channel" in
 215                                 36|40|44|48|52|56|60|64) idx=50;;
 216                                 100|104|108|112|116|120|124|128) idx=114;;
 217                         esac
 218                         enable_ac=1
 219                         append base_cfg "vht_oper_chwidth=2" "$N"
 220                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 221                 ;;
 222         esac
 223
 224         if [ "$enable_ac" != "0" ]; then
 225                 json_get_vars \
 226                         rxldpc:1 \
 227                         short_gi_80:1 \
 228                         short_gi_160:1 \
 229                         tx_stbc_2by1:1 \
 230                         su_beamformer:1 \
 231                         su_beamformee:1 \
 232                         mu_beamformer:1 \
 233                         mu_beamformee:1 \
 234                         vht_txop_ps:1 \
 235                         htc_vht:1 \
 236                         rx_antenna_pattern:1 \
 237                         tx_antenna_pattern:1 \
 238                         vht_max_a_mpdu_len_exp:7 \
 239                         vht_max_mpdu:11454 \
 240                         rx_stbc:4 \
 241                         vht_link_adapt:3 \
 242                         vht160:2
 243
 244                 set_default tx_burst 2.0
 245                 append base_cfg "ieee80211ac=1" "$N"
 246                 vht_cap=0
 247                 for cap in $(iw phy "$phy" info | awk -F "[()]" '/VHT Capabilities/ { print $2 }'); do
 248                         vht_cap="$(($vht_cap | $cap))"
 249                 done
 250
 251                 cap_rx_stbc=$((($vht_cap >> 8) & 7))
 252                 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
 253                 vht_cap="$(( ($vht_cap & ~(0x700)) | ($cap_rx_stbc << 8) ))"
 254
 255                 mac80211_add_capabilities vht_capab $vht_cap \
 256                         RXLDPC:0x10::$rxldpc \
 257                         SHORT-GI-80:0x20::$short_gi_80 \
 258                         SHORT-GI-160:0x40::$short_gi_160 \
 259                         TX-STBC-2BY1:0x80::$tx_stbc_2by1 \
 260                         SU-BEAMFORMER:0x800::$su_beamformer \
 261                         SU-BEAMFORMEE:0x1000::$su_beamformee \
 262                         MU-BEAMFORMER:0x80000::$mu_beamformer \
 263                         MU-BEAMFORMEE:0x100000::$mu_beamformee \
 264                         VHT-TXOP-PS:0x200000::$vht_txop_ps \
 265                         HTC-VHT:0x400000::$htc_vht \
 266                         RX-ANTENNA-PATTERN:0x10000000::$rx_antenna_pattern \
 267                         TX-ANTENNA-PATTERN:0x20000000::$tx_antenna_pattern \
 268                         RX-STBC-1:0x700:0x100:1 \
 269                         RX-STBC-12:0x700:0x200:1 \
 270                         RX-STBC-123:0x700:0x300:1 \
 271                         RX-STBC-1234:0x700:0x400:1 \
 272
 273                 # supported Channel widths
 274                 vht160_hw=0
 275                 [ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \
 276                         vht160_hw=1
 277                 [ "$(($vht_cap & 12))" -eq 8 -a 2 -le "$vht160" ] && \
 278                         vht160_hw=2
 279                 [ "$vht160_hw" = 1 ] && vht_capab="$vht_capab[VHT160]"
 280                 [ "$vht160_hw" = 2 ] && vht_capab="$vht_capab[VHT160-80PLUS80]"
 281
 282                 # maximum MPDU length
 283                 vht_max_mpdu_hw=3895
 284                 [ "$(($vht_cap & 3))" -ge 1 -a 7991 -le "$vht_max_mpdu" ] && \
 285                         vht_max_mpdu_hw=7991
 286                 [ "$(($vht_cap & 3))" -ge 2 -a 11454 -le "$vht_max_mpdu" ] && \
 287                         vht_max_mpdu_hw=11454
 288                 [ "$vht_max_mpdu_hw" != 3895 ] && \
 289                         vht_capab="$vht_capab[MAX-MPDU-$vht_max_mpdu_hw]"
 290
 291                 # maximum A-MPDU length exponent
 292                 vht_max_a_mpdu_len_exp_hw=0
 293                 [ "$(($vht_cap & 58720256))" -ge 8388608 -a 1 -le "$vht_max_a_mpdu_len_exp" ] && \
 294                         vht_max_a_mpdu_len_exp_hw=1
 295                 [ "$(($vht_cap & 58720256))" -ge 16777216 -a 2 -le "$vht_max_a_mpdu_len_exp" ] && \
 296                         vht_max_a_mpdu_len_exp_hw=2
 297                 [ "$(($vht_cap & 58720256))" -ge 25165824 -a 3 -le "$vht_max_a_mpdu_len_exp" ] && \
 298                         vht_max_a_mpdu_len_exp_hw=3
 299                 [ "$(($vht_cap & 58720256))" -ge 33554432 -a 4 -le "$vht_max_a_mpdu_len_exp" ] && \
 300                         vht_max_a_mpdu_len_exp_hw=4
 301                 [ "$(($vht_cap & 58720256))" -ge 41943040 -a 5 -le "$vht_max_a_mpdu_len_exp" ] && \
 302                         vht_max_a_mpdu_len_exp_hw=5
 303                 [ "$(($vht_cap & 58720256))" -ge 50331648 -a 6 -le "$vht_max_a_mpdu_len_exp" ] && \
 304                         vht_max_a_mpdu_len_exp_hw=6
 305                 [ "$(($vht_cap & 58720256))" -ge 58720256 -a 7 -le "$vht_max_a_mpdu_len_exp" ] && \
 306                         vht_max_a_mpdu_len_exp_hw=7
 307                 vht_capab="$vht_capab[MAX-A-MPDU-LEN-EXP$vht_max_a_mpdu_len_exp_hw]"
 308
 309                 # whether or not the STA supports link adaptation using VHT variant
 310                 vht_link_adapt_hw=0
 311                 [ "$(($vht_cap & 201326592))" -ge 134217728 -a 2 -le "$vht_link_adapt" ] && \
 312                         vht_link_adapt_hw=2
 313                 [ "$(($vht_cap & 201326592))" -ge 201326592 -a 3 -le "$vht_link_adapt" ] && \
 314                         vht_link_adapt_hw=3
 315                 [ "$vht_link_adapt_hw" != 0 ] && \
 316                         vht_capab="$vht_capab[VHT-LINK-ADAPT-$vht_link_adapt_hw]"
 317
 318                 [ -n "$vht_capab" ] && append base_cfg "vht_capab=$vht_capab" "$N"
 319         fi
 320
 321         hostapd_prepare_device_config "$hostapd_conf_file" nl80211
 322         cat >> "$hostapd_conf_file" <<EOF
 323 ${channel:+channel=$channel}
 324 ${channel_list:+chanlist=$channel_list}
 325 ${hostapd_noscan:+noscan=1}
 326 ${tx_burst:+tx_queue_data2_burst=$tx_burst}
 327 $base_cfg
 328
 329 EOF
 330         json_select ..
 331 }
 332
 333 mac80211_hostapd_setup_bss() {
 334         local phy="$1"
 335         local ifname="$2"
 336         local macaddr="$3"
 337         local type="$4"
 338
 339         hostapd_cfg=
 340         append hostapd_cfg "$type=$ifname" "$N"
 341
 342         hostapd_set_bss_options hostapd_cfg "$vif" || return 1
 343         json_get_vars wds dtim_period max_listen_int start_disabled
 344
 345         set_default wds 0
 346         set_default start_disabled 0
 347
 348         [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
 349         [ "$staidx" -gt 0 -o "$start_disabled" -eq 1 ] && append hostapd_cfg "start_disabled=1" "$N"
 350
 351         cat >> /var/run/hostapd-$phy.conf <<EOF
 352 $hostapd_cfg
 353 bssid=$macaddr
 354 ${dtim_period:+dtim_period=$dtim_period}
 355 ${max_listen_int:+max_listen_interval=$max_listen_int}
 356 EOF
 357 }
 358
 359 mac80211_get_addr() {
 360         local phy="$1"
 361         local idx="$(($2 + 1))"
 362
 363         head -n $(($macidx + 1)) /sys/class/ieee80211/${phy}/addresses | tail -n1
 364 }
 365
 366 mac80211_generate_mac() {
 367         local phy="$1"
 368         local id="${macidx:-0}"
 369
 370         local ref="$(cat /sys/class/ieee80211/${phy}/macaddress)"
 371         local mask="$(cat /sys/class/ieee80211/${phy}/address_mask)"
 372
 373         [ "$mask" = "00:00:00:00:00:00" ] && {
 374                 mask="ff:ff:ff:ff:ff:ff";
 375
 376                 [ "$(wc -l < /sys/class/ieee80211/${phy}/addresses)" -gt 1 ] && {
 377                         addr="$(mac80211_get_addr "$phy" "$id")"
 378                         [ -n "$addr" ] && {
 379                                 echo "$addr"
 380                                 return
 381                         }
 382                 }
 383         }
 384
 385         local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
 386
 387         local mask1=$1
 388         local mask6=$6
 389
 390         local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
 391
 392         macidx=$(($id + 1))
 393         [ "$((0x$mask1))" -gt 0 ] && {
 394                 b1="0x$1"
 395                 [ "$id" -gt 0 ] && \
 396                         b1=$(($b1 ^ ((($id - 1) << 2) | 0x2)))
 397                 printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6
 398                 return
 399         }
 400
 401         [ "$((0x$mask6))" -lt 255 ] && {
 402                 printf "%s:%s:%s:%s:%s:%02x" $1 $2 $3 $4 $5 $(( 0x$6 ^ $id ))
 403                 return
 404         }
 405
 406         off2=$(( (0x$6 + $id) / 0x100 ))
 407         printf "%s:%s:%s:%s:%02x:%02x" \
 408                 $1 $2 $3 $4 \
 409                 $(( (0x$5 + $off2) % 0x100 )) \
 410                 $(( (0x$6 + $id) % 0x100 ))
 411 }
 412
 413 find_phy() {
 414         [ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0
 415         [ -n "$path" ] && {
 416                 phy="$(mac80211_path_to_phy "$path")"
 417                 [ -n "$phy" ] && return 0
 418         }
 419         [ -n "$macaddr" ] && {
 420                 for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
 421                         grep -i -q "$macaddr" "/sys/class/ieee80211/${phy}/macaddress" && return 0
 422                 done
 423         }
 424         return 1
 425 }
 426
 427 mac80211_check_ap() {
 428         has_ap=1
 429 }
 430
 431 mac80211_iw_interface_add() {
 432         local phy="$1"
 433         local ifname="$2"
 434         local type="$3"
 435         local wdsflag="$4"
 436         local rc
 437
 438         iw phy "$phy" interface add "$ifname" type "$type" $wdsflag
 439         rc="$?"
 440
 441         [ "$rc" = 233 ] && {
 442                 # Device might have just been deleted, give the kernel some time to finish cleaning it up
 443                 sleep 1
 444
 445                 iw phy "$phy" interface add "$ifname" type "$type" $wdsflag
 446                 rc="$?"
 447         }
 448
 449         [ "$rc" = 233 ] && {
 450                 # Keep matching pre-existing interface
 451                 [ -d "/sys/class/ieee80211/${phy}/device/net/${ifname}" ] && \
 452                 case "$(iw dev wlan0 info | grep "^\ttype" | cut -d' ' -f2- 2>/dev/null)" in
 453                         "AP")
 454                                 [ "$type" = "__ap" ] && rc=0
 455                                 ;;
 456                         "IBSS")
 457                                 [ "$type" = "adhoc" ] && rc=0
 458                                 ;;
 459                         "managed")
 460                                 [ "$type" = "managed" ] && rc=0
 461                                 ;;
 462                         "mesh point")
 463                                 [ "$type" = "mp" ] && rc=0
 464                                 ;;
 465                         "monitor")
 466                                 [ "$type" = "monitor" ] && rc=0
 467                                 ;;
 468                 esac
 469         }
 470
 471         [ "$rc" = 233 ] && {
 472                 iw dev "$ifname" del
 473                 sleep 1
 474
 475                 iw phy "$phy" interface add "$ifname" type "$type" $wdsflag
 476                 rc="$?"
 477         }
 478
 479         [ "$rc" = 233 ] && {
 480                 # Device might not support virtual interfaces, so the interface never got deleted in the first place.
 481                 # Check if the interface already exists, and avoid failing in this case.
 482                 ip link show dev "$ifname" >/dev/null 2>/dev/null && rc=0
 483         }
 484
 485         [ "$rc" != 0 ] && wireless_setup_failed INTERFACE_CREATION_FAILED
 486         return $rc
 487 }
 488
 489 mac80211_prepare_vif() {
 490         json_select config
 491
 492         json_get_vars ifname mode ssid wds powersave macaddr enable
 493
 494         [ -n "$ifname" ] || ifname="wlan${phy#phy}${if_idx:+-$if_idx}"
 495         if_idx=$((${if_idx:-0} + 1))
 496
 497         set_default wds 0
 498         set_default powersave 0
 499
 500         json_select ..
 501
 502         [ -n "$macaddr" ] || {
 503                 macaddr="$(mac80211_generate_mac $phy)"
 504                 macidx="$(($macidx + 1))"
 505         }
 506
 507         json_add_object data
 508         json_add_string ifname "$ifname"
 509         json_close_object
 510         json_select config
 511
 512         # It is far easier to delete and create the desired interface
 513         case "$mode" in
 514                 adhoc)
 515                         mac80211_iw_interface_add "$phy" "$ifname" adhoc || return
 516                 ;;
 517                 ap)
 518                         # Hostapd will handle recreating the interface and
 519                         # subsequent virtual APs belonging to the same PHY
 520                         if [ -n "$hostapd_ctrl" ]; then
 521                                 type=bss
 522                         else
 523                                 type=interface
 524                         fi
 525
 526                         mac80211_hostapd_setup_bss "$phy" "$ifname" "$macaddr" "$type" || return
 527
 528                         NEWAPLIST="${NEWAPLIST}$ifname "
 529                         [ -n "$hostapd_ctrl" ] || {
 530                                 hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd/$ifname}"
 531                         }
 532                 ;;
 533                 mesh)
 534                         mac80211_iw_interface_add "$phy" "$ifname" mp || return
 535                 ;;
 536                 monitor)
 537                         mac80211_iw_interface_add "$phy" "$ifname" monitor || return
 538                 ;;
 539                 sta)
 540                         local wdsflag=
 541                         [ "$enable" = 0 ] || staidx="$(($staidx + 1))"
 542                         [ "$wds" -gt 0 ] && wdsflag="4addr on"
 543                         mac80211_iw_interface_add "$phy" "$ifname" managed "$wdsflag" || return
 544                         if [ "$wds" -gt 0 ]; then
 545                                 iw "$ifname" set 4addr on
 546                         else
 547                                 iw "$ifname" set 4addr off
 548                         fi
 549                         [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
 550                         iw "$ifname" set power_save "$powersave"
 551                 ;;
 552         esac
 553
 554         case "$mode" in
 555                 monitor|mesh)
 556                         [ "$auto_channel" -gt 0 ] || iw dev "$ifname" set channel "$channel" $iw_htmode
 557                 ;;
 558         esac
 559
 560         if [ "$mode" != "ap" ]; then
 561                 # ALL ap functionality will be passed to hostapd
 562                 # All interfaces must have unique mac addresses
 563                 # which can either be explicitly set in the device
 564                 # section, or automatically generated
 565                 ip link set dev "$ifname" address "$macaddr"
 566         fi
 567
 568         json_select ..
 569 }
 570
 571 mac80211_setup_supplicant() {
 572         local enable=$1
 573         local add_sp=0
 574         local spobj="$(ubus -S list | grep wpa_supplicant.${ifname})"
 575
 576         wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1
 577         wpa_supplicant_prepare_interface "$ifname" nl80211 || {
 578                 iw dev "$ifname" del
 579                 return 1
 580         }
 581         if [ "$mode" = "sta" ]; then
 582                 wpa_supplicant_add_network "$ifname"
 583         else
 584                 wpa_supplicant_add_network "$ifname" "$freq" "$htmode" "$noscan"
 585         fi
 586
 587         NEWSPLIST="${NEWSPLIST}$ifname "
 588
 589         if [ "${NEWAPLIST%% *}" != "${OLDAPLIST%% *}" ]; then
 590                 [ "$spobj" ] && ubus call wpa_supplicant.${phy} config_del "{\"iface\":\"$ifname\"}"
 591                 add_sp=1
 592         fi
 593         [ "$enable" = 0 ] && {
 594                 ubus call wpa_supplicant.${phy} config_del "{\"iface\":\"$ifname\"}"
 595                 ip link set dev "$ifname" down
 596                 return 0
 597         }
 598         [ -z "$spobj" ] && add_sp=1
 599
 600         if [ "$add_sp" = "1" ]; then
 601                 wpa_supplicant_run "$ifname" "$hostapd_ctrl"
 602         else
 603                 ubus call $spobj reload
 604         fi
 605 }
 606
 607 mac80211_setup_supplicant_noctl() {
 608         local enable=$1
 609         local spobj="$(ubus -S list | grep wpa_supplicant.${ifname})"
 610         wpa_supplicant_prepare_interface "$ifname" nl80211 || {
 611                 iw dev "$ifname" del
 612                 return 1
 613         }
 614
 615         wpa_supplicant_add_network "$ifname" "$freq" "$htmode" "$noscan"
 616
 617         NEWSPLIST="${NEWSPLIST}$ifname "
 618         [ "$enable" = 0 ] && {
 619                 ubus call wpa_supplicant.${phy} config_del "{\"iface\":\"$ifname\"}"
 620                 ip link set dev "$ifname" down
 621                 return 0
 622         }
 623         if [ -z "$spobj" ]; then
 624                 wpa_supplicant_run "$ifname"
 625         else
 626                 ubus call $spobj reload
 627         fi
 628 }
 629
 630 mac80211_prepare_iw_htmode() {
 631         case "$htmode" in
 632                 VHT20|HT20) iw_htmode=HT20;;
 633                 HT40*|VHT40|VHT160)
 634                         case "$hwmode" in
 635                                 a)
 636                                         case "$(( ($channel / 4) % 2 ))" in
 637                                                 1) iw_htmode="HT40+" ;;
 638                                                 0) iw_htmode="HT40-";;
 639                                         esac
 640                                 ;;
 641                                 *)
 642                                         case "$htmode" in
 643                                                 HT40+) iw_htmode="HT40+";;
 644                                                 HT40-) iw_htmode="HT40-";;
 645                                                 *)
 646                                                         if [ "$channel" -lt 7 ]; then
 647                                                                 iw_htmode="HT40+"
 648                                                         else
 649                                                                 iw_htmode="HT40-"
 650                                                         fi
 651                                                 ;;
 652                                         esac
 653                                 ;;
 654                         esac
 655                         [ "$auto_channel" -gt 0 ] && iw_htmode="HT40+"
 656                 ;;
 657                 VHT80)
 658                         iw_htmode="80MHZ"
 659                 ;;
 660                 NONE|NOHT)
 661                         iw_htmode="NOHT"
 662                 ;;
 663                 *) iw_htmode="" ;;
 664         esac
 665 }
 666
 667 mac80211_setup_adhoc() {
 668         local enable=$1
 669         json_get_vars bssid ssid key mcast_rate
 670
 671         NEWUMLIST="${NEWUMLIST}$ifname "
 672
 673         [ "$enable" = 0 ] && {
 674                 ip link set dev "$ifname" down
 675                 return 0
 676         }
 677
 678         keyspec=
 679         [ "$auth_type" = "wep" ] && {
 680                 set_default key 1
 681                 case "$key" in
 682                         [1234])
 683                                 local idx
 684                                 for idx in 1 2 3 4; do
 685                                         json_get_var ikey "key$idx"
 686
 687                                         [ -n "$ikey" ] && {
 688                                                 ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
 689                                                 [ $idx -eq $key ] && ikey="d:$ikey"
 690                                                 append keyspec "$ikey"
 691                                         }
 692                                 done
 693                         ;;
 694                         *)
 695                                 append keyspec "d:0:$(prepare_key_wep "$key")"
 696                         ;;
 697                 esac
 698         }
 699
 700         brstr=
 701         for br in $basic_rate_list; do
 702                 wpa_supplicant_add_rate brstr "$br"
 703         done
 704
 705         mcval=
 706         [ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 707
 708         iw dev "$ifname" ibss join "$ssid" $freq $iw_htmode fixed-freq $bssid \
 709                 beacon-interval $beacon_int \
 710                 ${brstr:+basic-rates $brstr} \
 711                 ${mcval:+mcast-rate $mcval} \
 712                 ${keyspec:+keys $keyspec}
 713 }
 714
 715 mac80211_setup_mesh() {
 716         local enable=$1
 717         json_get_vars ssid mesh_id mcast_rate
 718
 719         NEWUMLIST="${NEWUMLIST}$ifname "
 720
 721         [ "$enable" = 0 ] && {
 722                 ip link set dev "$ifname" down
 723                 return 0
 724         }
 725
 726         mcval=
 727         [ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 728         [ -n "$mesh_id" ] && ssid="$mesh_id"
 729
 730         iw dev "$ifname" mesh join "$ssid" freq $freq $iw_htmode \
 731                 ${mcval:+mcast-rate $mcval} \
 732                 beacon-interval $beacon_int
 733 }
 734
 735 mac80211_setup_vif() {
 736         local name="$1"
 737         local failed
 738         local action=up
 739
 740         json_select data
 741         json_get_vars ifname
 742         json_select ..
 743
 744         json_select config
 745         json_get_vars mode
 746         json_get_var vif_txpower
 747         json_get_var vif_enable enable 1
 748
 749         [ "$vif_enable" = 1 ] || action=down
 750         logger ip link set dev "$ifname" $action
 751         ip link set dev "$ifname" "$action" || {
 752                 wireless_setup_vif_failed IFUP_ERROR
 753                 json_select ..
 754                 return
 755         }
 756         [ -z "$vif_txpower" ] || iw dev "$ifname" set txpower fixed "${vif_txpower%%.*}00"
 757
 758         case "$mode" in
 759                 mesh)
 760                         wireless_vif_parse_encryption
 761                         freq="$(get_freq "$phy" "$channel")"
 762                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ] || chan_is_dfs "$phy" "$channel"; then
 763                                 mac80211_setup_supplicant $vif_enable || failed=1
 764                         else
 765                                 mac80211_setup_mesh $vif_enable
 766                         fi
 767                         for var in $MP_CONFIG_INT $MP_CONFIG_BOOL $MP_CONFIG_STRING; do
 768                                 json_get_var mp_val "$var"
 769                                 [ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$var" "$mp_val"
 770                         done
 771                 ;;
 772                 adhoc)
 773                         wireless_vif_parse_encryption
 774                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
 775                                 freq="$(get_freq "$phy" "$channel")"
 776                                 mac80211_setup_supplicant_noctl $vif_enable || failed=1
 777                         else
 778                                 mac80211_setup_adhoc $vif_enable
 779                         fi
 780                 ;;
 781                 sta)
 782                         mac80211_setup_supplicant $vif_enable || failed=1
 783                 ;;
 784         esac
 785
 786         json_select ..
 787         [ -n "$failed" ] || wireless_add_vif "$name" "$ifname"
 788 }
 789
 790 get_freq() {
 791         local phy="$1"
 792         local chan="$2"
 793         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
 794 }
 795
 796 chan_is_dfs() {
 797         local phy="$1"
 798         local chan="$2"
 799         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep -q "MHz.*radar detection"
 800         return $!
 801 }
 802
 803 mac80211_vap_cleanup() {
 804         local service="$1"
 805         local vaps="$2"
 806
 807         for wdev in $vaps; do
 808                 [ "$service" != "none" ] && ubus call ${service}.${phy} config_remove "{\"iface\":\"$wdev\"}"
 809                 ip link set dev "$wdev" down 2>/dev/null
 810                 iw dev "$wdev" del
 811         done
 812 }
 813
 814 mac80211_interface_cleanup() {
 815         local phy="$1"
 816         local primary_ap=$(uci -q -P /var/state get wireless._${phy}.aplist)
 817         primary_ap=${primary_ap%% *}
 818
 819         mac80211_vap_cleanup hostapd "${primary_ap}"
 820         mac80211_vap_cleanup wpa_supplicant "$(uci -q -P /var/state get wireless._${phy}.splist)"
 821         mac80211_vap_cleanup none "$(uci -q -P /var/state get wireless._${phy}.umlist)"
 822 }
 823
 824 mac80211_set_noscan() {
 825         hostapd_noscan=1
 826 }
 827
 828 drv_mac80211_cleanup() {
 829         hostapd_common_cleanup
 830 }
 831
 832 drv_mac80211_setup() {
 833         json_select config
 834         json_get_vars \
 835                 phy macaddr path \
 836                 country chanbw distance \
 837                 txpower antenna_gain \
 838                 rxantenna txantenna \
 839                 frag rts beacon_int:100 htmode
 840         json_get_values basic_rate_list basic_rate
 841         json_select ..
 842
 843         find_phy || {
 844                 echo "Could not find PHY for device '$1'"
 845                 wireless_set_retry 0
 846                 return 1
 847         }
 848
 849         [ -z "$(uci -q -P /var/state show wireless._${phy})" ] && {
 850                 uci -q -P /var/state set wireless._${phy}=phy
 851                 wireless_set_data phy="$phy"
 852         }
 853
 854         OLDAPLIST=$(uci -q -P /var/state get wireless._${phy}.aplist)
 855         OLDSPLIST=$(uci -q -P /var/state get wireless._${phy}.splist)
 856         OLDUMLIST=$(uci -q -P /var/state get wireless._${phy}.umlist)
 857
 858         local wdev
 859         local cwdev
 860         local found
 861
 862         for wdev in $(list_phy_interfaces "$phy"); do
 863                 found=0
 864                 for cwdev in $OLDAPLIST $OLDSPLIST $OLDUMLIST; do
 865                         if [ "$wdev" = "$cwdev" ]; then
 866                                 found=1
 867                                 break
 868                         fi
 869                 done
 870                 if [ "$found" = "0" ]; then
 871                         ip link set dev "$wdev" down
 872                         iw dev "$wdev" del
 873                 fi
 874         done
 875
 876         # convert channel to frequency
 877         [ "$auto_channel" -gt 0 ] || freq="$(get_freq "$phy" "$channel")"
 878
 879         [ -n "$country" ] && {
 880                 iw reg get | grep -q "^country $country:" || {
 881                         iw reg set "$country"
 882                         sleep 1
 883                 }
 884         }
 885
 886         hostapd_conf_file="/var/run/hostapd-$phy.conf"
 887
 888         no_ap=1
 889         macidx=0
 890         staidx=0
 891
 892         [ -n "$chanbw" ] && {
 893                 for file in /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode; do
 894                         [ -f "$file" ] && echo "$chanbw" > "$file"
 895                 done
 896         }
 897
 898         set_default rxantenna 0xffffffff
 899         set_default txantenna 0xffffffff
 900         set_default distance 0
 901         set_default antenna_gain 0
 902
 903         [ "$txantenna" = "all" ] && txantenna=0xffffffff
 904         [ "$rxantenna" = "all" ] && rxantenna=0xffffffff
 905
 906         iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
 907         iw phy "$phy" set antenna_gain $antenna_gain
 908         iw phy "$phy" set distance "$distance"
 909
 910         if [ -n "$txpower" ]; then
 911                 iw phy "$phy" set txpower fixed "${txpower%%.*}00"
 912         else
 913                 iw phy "$phy" set txpower auto
 914         fi
 915
 916         [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
 917         [ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
 918
 919         has_ap=
 920         hostapd_ctrl=
 921         hostapd_noscan=
 922         for_each_interface "ap" mac80211_check_ap
 923
 924         rm -f "$hostapd_conf_file"
 925
 926         for_each_interface "sta adhoc mesh" mac80211_set_noscan
 927         [ -n "$has_ap" ] && mac80211_hostapd_setup_base "$phy"
 928
 929         mac80211_prepare_iw_htmode
 930         for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
 931         NEWAPLIST=
 932         for_each_interface "ap" mac80211_prepare_vif
 933         NEW_MD5=$(test -e "${hostapd_conf_file}" && md5sum ${hostapd_conf_file})
 934         OLD_MD5=$(uci -q -P /var/state get wireless._${phy}.md5)
 935         if [ "${NEWAPLIST}" != "${OLDAPLIST}" ]; then
 936                 mac80211_vap_cleanup hostapd "${OLDAPLIST}"
 937                 [ -n "${NEWAPLIST}" ] && mac80211_iw_interface_add "$phy" "${NEWAPLIST%% *}" __ap || return
 938         fi
 939         local add_ap=0
 940         local primary_ap=${NEWAPLIST%% *}
 941         [ -n "$hostapd_ctrl" ] && {
 942                 if [ -n "$(ubus list | grep hostapd.$primary_ap)" ]; then
 943                         [ "${NEW_MD5}" = "${OLD_MD5}" ] || {
 944                                 ubus call hostapd.$primary_ap reload
 945                         }
 946                 else
 947                         add_ap=1
 948                         ubus wait_for hostapd.$phy
 949                         ubus call hostapd.${phy} config_add "{\"iface\":\"$primary_ap\", \"config\":\"${hostapd_conf_file}\"}"
 950                         local hostapd_pid=$(ubus call service list '{"name": "hostapd"}' | jsonfilter -l 1 -e "@['hostapd'].instances['hostapd-${phy}'].pid")
 951                         wireless_add_process "$hostapd_pid" "/usr/sbin/hostapd" 1
 952                 fi
 953                 ret="$?"
 954                 [ "$ret" != 0 ] && {
 955                         wireless_setup_failed HOSTAPD_START_FAILED
 956                         return
 957                 }
 958         }
 959         uci -q -P /var/state set wireless._${phy}.aplist="${NEWAPLIST}"
 960         uci -q -P /var/state set wireless._${phy}.md5="${NEW_MD5}"
 961
 962         [ "${add_ap}" = 1 ] && sleep 1
 963         for_each_interface "ap" mac80211_setup_vif
 964
 965         NEWSPLIST=
 966         NEWUMLIST=
 967
 968         for_each_interface "sta adhoc mesh monitor" mac80211_setup_vif
 969
 970         uci -q -P /var/state set wireless._${phy}.splist="${NEWSPLIST}"
 971         uci -q -P /var/state set wireless._${phy}.umlist="${NEWUMLIST}"
 972
 973         local foundvap
 974         local dropvap=""
 975         for oldvap in $OLDSPLIST; do
 976                 foundvap=0
 977                 for newvap in $NEWSPLIST; do
 978                         [ "$oldvap" = "$newvap" ] && foundvap=1
 979                 done
 980                 [ "$foundvap" = "0" ] && dropvap="$dropvap $oldvap"
 981         done
 982         [ -n "$dropvap" ] && mac80211_vap_cleanup wpa_supplicant "$dropvap"
 983         wireless_set_up
 984 }
 985
 986 _list_phy_interfaces() {
 987         local phy="$1"
 988         if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then
 989                 ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null;
 990         else
 991                 ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g'
 992         fi
 993 }
 994
 995 list_phy_interfaces() {
 996         local phy="$1"
 997
 998         for dev in $(_list_phy_interfaces "$phy"); do
 999                 readlink "/sys/class/net/${dev}/phy80211" | grep -q "/${phy}\$" || continue
1000                 echo "$dev"
1001         done
1002 }
1003
1004 drv_mac80211_teardown() {
1005         wireless_process_kill_all
1006
1007         json_select data
1008         json_get_vars phy
1009         json_select ..
1010
1011         mac80211_interface_cleanup "$phy"
1012         uci -q -P /var/state revert wireless._${phy}
1013 }
1014
1015 add_driver mac80211