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
  23 drv_mac80211_init_device_config() {
  24         hostapd_common_add_device_config
  25
  26         config_add_string path phy 'macaddr:macaddr'
  27         config_add_string hwmode
  28         config_add_string tx_burst
  29         config_add_int beacon_int chanbw frag rts
  30         config_add_int rxantenna txantenna antenna_gain txpower distance
  31         config_add_boolean noscan ht_coex acs_exclude_dfs
  32         config_add_array ht_capab
  33         config_add_array channels
  34         config_add_boolean \
  35                 rxldpc \
  36                 short_gi_80 \
  37                 short_gi_160 \
  38                 tx_stbc_2by1 \
  39                 su_beamformer \
  40                 su_beamformee \
  41                 mu_beamformer \
  42                 mu_beamformee \
  43                 vht_txop_ps \
  44                 htc_vht \
  45                 rx_antenna_pattern \
  46                 tx_antenna_pattern
  47         config_add_int vht_max_a_mpdu_len_exp vht_max_mpdu vht_link_adapt vht160 rx_stbc tx_stbc
  48         config_add_boolean \
  49                 ldpc \
  50                 greenfield \
  51                 short_gi_20 \
  52                 short_gi_40 \
  53                 max_amsdu \
  54                 dsss_cck_40
  55 }
  56
  57 drv_mac80211_init_iface_config() {
  58         hostapd_common_add_bss_config
  59
  60         config_add_string 'macaddr:macaddr' ifname
  61
  62         config_add_boolean wds powersave enable
  63         config_add_int maxassoc
  64         config_add_int max_listen_int
  65         config_add_int dtim_period
  66         config_add_int start_disabled
  67
  68         # mesh
  69         config_add_string mesh_id
  70         config_add_int $MP_CONFIG_INT
  71         config_add_boolean $MP_CONFIG_BOOL
  72         config_add_string $MP_CONFIG_STRING
  73 }
  74
  75 mac80211_add_capabilities() {
  76         local __var="$1"; shift
  77         local __mask="$1"; shift
  78         local __out= oifs
  79
  80         oifs="$IFS"
  81         IFS=:
  82         for capab in "$@"; do
  83                 set -- $capab
  84
  85                 [ "$(($4))" -gt 0 ] || continue
  86                 [ "$(($__mask & $2))" -eq "$((${3:-$2}))" ] || continue
  87                 __out="$__out[$1]"
  88         done
  89         IFS="$oifs"
  90
  91         export -n -- "$__var=$__out"
  92 }
  93
  94 mac80211_hostapd_setup_base() {
  95         local phy="$1"
  96
  97         json_select config
  98
  99         [ "$auto_channel" -gt 0 ] && channel=acs_survey
 100         [ "$auto_channel" -gt 0 ] && json_get_values channel_list channels
 101
 102         [ "$auto_channel" -gt 0 ] && json_get_vars acs_exclude_dfs
 103         [ -n "$acs_exclude_dfs" ] && [ "$acs_exclude_dfs" -gt 0 ] &&
 104                 append base_cfg "acs_exclude_dfs=1" "$N"
 105
 106         json_get_vars noscan ht_coex
 107         json_get_values ht_capab_list ht_capab tx_burst
 108
 109         [ -n "$noscan" -a "$noscan" -gt 0 ] && hostapd_noscan=1
 110         [ "$tx_burst" = 0 ] && tx_burst=
 111
 112         ieee80211n=1
 113         ht_capab=
 114         case "$htmode" in
 115                 VHT20|HT20) ;;
 116                 HT40*|VHT40|VHT80|VHT160)
 117                         case "$hwmode" in
 118                                 a)
 119                                         case "$(( ($channel / 4) % 2 ))" in
 120                                                 1) ht_capab="[HT40+]";;
 121                                                 0) ht_capab="[HT40-]";;
 122                                         esac
 123                                 ;;
 124                                 *)
 125                                         case "$htmode" in
 126                                                 HT40+) ht_capab="[HT40+]";;
 127                                                 HT40-) ht_capab="[HT40-]";;
 128                                                 *)
 129                                                         if [ "$channel" -lt 7 ]; then
 130                                                                 ht_capab="[HT40+]"
 131                                                         else
 132                                                                 ht_capab="[HT40-]"
 133                                                         fi
 134                                                 ;;
 135                                         esac
 136                                 ;;
 137                         esac
 138                         [ "$auto_channel" -gt 0 ] && ht_capab="[HT40+]"
 139                 ;;
 140                 *) ieee80211n= ;;
 141         esac
 142
 143         [ -n "$ieee80211n" ] && {
 144                 append base_cfg "ieee80211n=1" "$N"
 145
 146                 set_default ht_coex 0
 147                 append base_cfg "ht_coex=$ht_coex" "$N"
 148
 149                 json_get_vars \
 150                         ldpc:1 \
 151                         greenfield:0 \
 152                         short_gi_20:1 \
 153                         short_gi_40:1 \
 154                         tx_stbc:1 \
 155                         rx_stbc:3 \
 156                         max_amsdu:1 \
 157                         dsss_cck_40:1
 158
 159                 ht_cap_mask=0
 160                 for cap in $(iw phy "$phy" info | grep 'Capabilities:' | cut -d: -f2); do
 161                         ht_cap_mask="$(($ht_cap_mask | $cap))"
 162                 done
 163
 164                 cap_rx_stbc=$((($ht_cap_mask >> 8) & 3))
 165                 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
 166                 ht_cap_mask="$(( ($ht_cap_mask & ~(0x300)) | ($cap_rx_stbc << 8) ))"
 167
 168                 mac80211_add_capabilities ht_capab_flags $ht_cap_mask \
 169                         LDPC:0x1::$ldpc \
 170                         GF:0x10::$greenfield \
 171                         SHORT-GI-20:0x20::$short_gi_20 \
 172                         SHORT-GI-40:0x40::$short_gi_40 \
 173                         TX-STBC:0x80::$tx_stbc \
 174                         RX-STBC1:0x300:0x100:1 \
 175                         RX-STBC12:0x300:0x200:1 \
 176                         RX-STBC123:0x300:0x300:1 \
 177                         MAX-AMSDU-7935:0x800::$max_amsdu \
 178                         DSSS_CCK-40:0x1000::$dsss_cck_40
 179
 180                 ht_capab="$ht_capab$ht_capab_flags"
 181                 [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
 182         }
 183
 184         # 802.11ac
 185         enable_ac=0
 186         idx="$channel"
 187         case "$htmode" in
 188                 VHT20) enable_ac=1;;
 189                 VHT40)
 190                         case "$(( ($channel / 4) % 2 ))" in
 191                                 1) idx=$(($channel + 2));;
 192                                 0) idx=$(($channel - 2));;
 193                         esac
 194                         enable_ac=1
 195                         append base_cfg "vht_oper_chwidth=0" "$N"
 196                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 197                 ;;
 198                 VHT80)
 199                         case "$(( ($channel / 4) % 4 ))" in
 200                                 1) idx=$(($channel + 6));;
 201                                 2) idx=$(($channel + 2));;
 202                                 3) idx=$(($channel - 2));;
 203                                 0) idx=$(($channel - 6));;
 204                         esac
 205                         enable_ac=1
 206                         append base_cfg "vht_oper_chwidth=1" "$N"
 207                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 208                 ;;
 209                 VHT160)
 210                         case "$channel" in
 211                                 36|40|44|48|52|56|60|64) idx=50;;
 212                                 100|104|108|112|116|120|124|128) idx=114;;
 213                         esac
 214                         enable_ac=1
 215                         append base_cfg "vht_oper_chwidth=2" "$N"
 216                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 217                 ;;
 218         esac
 219
 220         if [ "$enable_ac" != "0" ]; then
 221                 json_get_vars \
 222                         rxldpc:1 \
 223                         short_gi_80:1 \
 224                         short_gi_160:1 \
 225                         tx_stbc_2by1:1 \
 226                         su_beamformer:1 \
 227                         su_beamformee:1 \
 228                         mu_beamformer:1 \
 229                         mu_beamformee:1 \
 230                         vht_txop_ps:1 \
 231                         htc_vht:1 \
 232                         rx_antenna_pattern:1 \
 233                         tx_antenna_pattern:1 \
 234                         vht_max_a_mpdu_len_exp:7 \
 235                         vht_max_mpdu:11454 \
 236                         rx_stbc:4 \
 237                         vht_link_adapt:3 \
 238                         vht160:2
 239
 240                 set_default tx_burst 2.0
 241                 append base_cfg "ieee80211ac=1" "$N"
 242                 vht_cap=0
 243                 for cap in $(iw phy "$phy" info | awk -F "[()]" '/VHT Capabilities/ { print $2 }'); do
 244                         vht_cap="$(($vht_cap | $cap))"
 245                 done
 246
 247                 cap_rx_stbc=$((($vht_cap >> 8) & 7))
 248                 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
 249                 vht_cap="$(( ($vht_cap & ~(0x700)) | ($cap_rx_stbc << 8) ))"
 250
 251                 mac80211_add_capabilities vht_capab $vht_cap \
 252                         RXLDPC:0x10::$rxldpc \
 253                         SHORT-GI-80:0x20::$short_gi_80 \
 254                         SHORT-GI-160:0x40::$short_gi_160 \
 255                         TX-STBC-2BY1:0x80::$tx_stbc_2by1 \
 256                         SU-BEAMFORMER:0x800::$su_beamformer \
 257                         SU-BEAMFORMEE:0x1000::$su_beamformee \
 258                         MU-BEAMFORMER:0x80000::$mu_beamformer \
 259                         MU-BEAMFORMEE:0x100000::$mu_beamformee \
 260                         VHT-TXOP-PS:0x200000::$vht_txop_ps \
 261                         HTC-VHT:0x400000::$htc_vht \
 262                         RX-ANTENNA-PATTERN:0x10000000::$rx_antenna_pattern \
 263                         TX-ANTENNA-PATTERN:0x20000000::$tx_antenna_pattern \
 264                         RX-STBC-1:0x700:0x100:1 \
 265                         RX-STBC-12:0x700:0x200:1 \
 266                         RX-STBC-123:0x700:0x300:1 \
 267                         RX-STBC-1234:0x700:0x400:1 \
 268
 269                 # supported Channel widths
 270                 vht160_hw=0
 271                 [ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \
 272                         vht160_hw=1
 273                 [ "$(($vht_cap & 12))" -eq 8 -a 2 -le "$vht160" ] && \
 274                         vht160_hw=2
 275                 [ "$vht160_hw" = 1 ] && vht_capab="$vht_capab[VHT160]"
 276                 [ "$vht160_hw" = 2 ] && vht_capab="$vht_capab[VHT160-80PLUS80]"
 277
 278                 # maximum MPDU length
 279                 vht_max_mpdu_hw=3895
 280                 [ "$(($vht_cap & 3))" -ge 1 -a 7991 -le "$vht_max_mpdu" ] && \
 281                         vht_max_mpdu_hw=7991
 282                 [ "$(($vht_cap & 3))" -ge 2 -a 11454 -le "$vht_max_mpdu" ] && \
 283                         vht_max_mpdu_hw=11454
 284                 [ "$vht_max_mpdu_hw" != 3895 ] && \
 285                         vht_capab="$vht_capab[MAX-MPDU-$vht_max_mpdu_hw]"
 286
 287                 # maximum A-MPDU length exponent
 288                 vht_max_a_mpdu_len_exp_hw=0
 289                 [ "$(($vht_cap & 58720256))" -ge 8388608 -a 1 -le "$vht_max_a_mpdu_len_exp" ] && \
 290                         vht_max_a_mpdu_len_exp_hw=1
 291                 [ "$(($vht_cap & 58720256))" -ge 16777216 -a 2 -le "$vht_max_a_mpdu_len_exp" ] && \
 292                         vht_max_a_mpdu_len_exp_hw=2
 293                 [ "$(($vht_cap & 58720256))" -ge 25165824 -a 3 -le "$vht_max_a_mpdu_len_exp" ] && \
 294                         vht_max_a_mpdu_len_exp_hw=3
 295                 [ "$(($vht_cap & 58720256))" -ge 33554432 -a 4 -le "$vht_max_a_mpdu_len_exp" ] && \
 296                         vht_max_a_mpdu_len_exp_hw=4
 297                 [ "$(($vht_cap & 58720256))" -ge 41943040 -a 5 -le "$vht_max_a_mpdu_len_exp" ] && \
 298                         vht_max_a_mpdu_len_exp_hw=5
 299                 [ "$(($vht_cap & 58720256))" -ge 50331648 -a 6 -le "$vht_max_a_mpdu_len_exp" ] && \
 300                         vht_max_a_mpdu_len_exp_hw=6
 301                 [ "$(($vht_cap & 58720256))" -ge 58720256 -a 7 -le "$vht_max_a_mpdu_len_exp" ] && \
 302                         vht_max_a_mpdu_len_exp_hw=7
 303                 vht_capab="$vht_capab[MAX-A-MPDU-LEN-EXP$vht_max_a_mpdu_len_exp_hw]"
 304
 305                 # whether or not the STA supports link adaptation using VHT variant
 306                 vht_link_adapt_hw=0
 307                 [ "$(($vht_cap & 201326592))" -ge 134217728 -a 2 -le "$vht_link_adapt" ] && \
 308                         vht_link_adapt_hw=2
 309                 [ "$(($vht_cap & 201326592))" -ge 201326592 -a 3 -le "$vht_link_adapt" ] && \
 310                         vht_link_adapt_hw=3
 311                 [ "$vht_link_adapt_hw" != 0 ] && \
 312                         vht_capab="$vht_capab[VHT-LINK-ADAPT-$vht_link_adapt_hw]"
 313
 314                 [ -n "$vht_capab" ] && append base_cfg "vht_capab=$vht_capab" "$N"
 315         fi
 316
 317         hostapd_prepare_device_config "$hostapd_conf_file" nl80211
 318         cat >> "$hostapd_conf_file" <<EOF
 319 ${channel:+channel=$channel}
 320 ${channel_list:+chanlist=$channel_list}
 321 ${hostapd_noscan:+noscan=1}
 322 ${tx_burst:+tx_queue_data2_burst=$tx_burst}
 323 $base_cfg
 324
 325 EOF
 326         json_select ..
 327 }
 328
 329 mac80211_hostapd_setup_bss() {
 330         local phy="$1"
 331         local ifname="$2"
 332         local macaddr="$3"
 333         local type="$4"
 334
 335         hostapd_cfg=
 336         append hostapd_cfg "$type=$ifname" "$N"
 337
 338         hostapd_set_bss_options hostapd_cfg "$vif" || return 1
 339         json_get_vars wds dtim_period max_listen_int start_disabled
 340
 341         set_default wds 0
 342         set_default start_disabled 0
 343
 344         [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
 345         [ "$staidx" -gt 0 -o "$start_disabled" -eq 1 ] && append hostapd_cfg "start_disabled=1" "$N"
 346
 347         cat >> /var/run/hostapd-$phy.conf <<EOF
 348 $hostapd_cfg
 349 bssid=$macaddr
 350 ${dtim_period:+dtim_period=$dtim_period}
 351 ${max_listen_int:+max_listen_interval=$max_listen_int}
 352 EOF
 353 }
 354
 355 mac80211_get_addr() {
 356         local phy="$1"
 357         local idx="$(($2 + 1))"
 358
 359         head -n $(($macidx + 1)) /sys/class/ieee80211/${phy}/addresses | tail -n1
 360 }
 361
 362 mac80211_generate_mac() {
 363         local phy="$1"
 364         local id="${macidx:-0}"
 365
 366         local ref="$(cat /sys/class/ieee80211/${phy}/macaddress)"
 367         local mask="$(cat /sys/class/ieee80211/${phy}/address_mask)"
 368
 369         [ "$mask" = "00:00:00:00:00:00" ] && {
 370                 mask="ff:ff:ff:ff:ff:ff";
 371
 372                 [ "$(wc -l < /sys/class/ieee80211/${phy}/addresses)" -gt 1 ] && {
 373                         addr="$(mac80211_get_addr "$phy" "$id")"
 374                         [ -n "$addr" ] && {
 375                                 echo "$addr"
 376                                 return
 377                         }
 378                 }
 379         }
 380
 381         local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
 382
 383         local mask1=$1
 384         local mask6=$6
 385
 386         local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
 387
 388         macidx=$(($id + 1))
 389         [ "$((0x$mask1))" -gt 0 ] && {
 390                 b1="0x$1"
 391                 [ "$id" -gt 0 ] && \
 392                         b1=$(($b1 ^ ((($id - 1) << 2) | 0x2)))
 393                 printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6
 394                 return
 395         }
 396
 397         [ "$((0x$mask6))" -lt 255 ] && {
 398                 printf "%s:%s:%s:%s:%s:%02x" $1 $2 $3 $4 $5 $(( 0x$6 ^ $id ))
 399                 return
 400         }
 401
 402         off2=$(( (0x$6 + $id) / 0x100 ))
 403         printf "%s:%s:%s:%s:%02x:%02x" \
 404                 $1 $2 $3 $4 \
 405                 $(( (0x$5 + $off2) % 0x100 )) \
 406                 $(( (0x$6 + $id) % 0x100 ))
 407 }
 408
 409 find_phy() {
 410         [ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0
 411         [ -n "$path" ] && {
 412                 phy="$(mac80211_path_to_phy "$path")"
 413                 [ -n "$phy" ] && return 0
 414         }
 415         [ -n "$macaddr" ] && {
 416                 for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
 417                         grep -i -q "$macaddr" "/sys/class/ieee80211/${phy}/macaddress" && return 0
 418                 done
 419         }
 420         return 1
 421 }
 422
 423 mac80211_check_ap() {
 424         has_ap=1
 425 }
 426
 427 mac80211_iw_interface_add() {
 428         local phy="$1"
 429         local ifname="$2"
 430         local type="$3"
 431         local wdsflag="$4"
 432         local rc
 433
 434         iw phy "$phy" interface add "$ifname" type "$type" $wdsflag
 435         rc="$?"
 436
 437         [ "$rc" = 233 ] && {
 438                 # Device might have just been deleted, give the kernel some time to finish cleaning it up
 439                 sleep 1
 440
 441                 iw phy "$phy" interface add "$ifname" type "$type" $wdsflag
 442                 rc="$?"
 443         }
 444
 445         [ "$rc" = 233 ] && {
 446                 # Keep matching pre-existing interface
 447                 [ -d "/sys/class/ieee80211/${phy}/device/net/${ifname}" ] && \
 448                 case "$(iw dev wlan0 info | grep "^\ttype" | cut -d' ' -f2- 2>/dev/null)" in
 449                         "AP")
 450                                 [ "$type" = "__ap" ] && rc=0
 451                                 ;;
 452                         "IBSS")
 453                                 [ "$type" = "adhoc" ] && rc=0
 454                                 ;;
 455                         "managed")
 456                                 [ "$type" = "managed" ] && rc=0
 457                                 ;;
 458                         "mesh point")
 459                                 [ "$type" = "mp" ] && rc=0
 460                                 ;;
 461                         "monitor")
 462                                 [ "$type" = "monitor" ] && rc=0
 463                                 ;;
 464                 esac
 465         }
 466
 467         [ "$rc" = 233 ] && {
 468                 iw dev "$ifname" del
 469                 sleep 1
 470
 471                 iw phy "$phy" interface add "$ifname" type "$type" $wdsflag
 472                 rc="$?"
 473         }
 474
 475         [ "$rc" = 233 ] && {
 476                 # Device might not support virtual interfaces, so the interface never got deleted in the first place.
 477                 # Check if the interface already exists, and avoid failing in this case.
 478                 ip link show dev "$ifname" >/dev/null 2>/dev/null && rc=0
 479         }
 480
 481         [ "$rc" != 0 ] && wireless_setup_failed INTERFACE_CREATION_FAILED
 482         return $rc
 483 }
 484
 485 mac80211_prepare_vif() {
 486         json_select config
 487
 488         json_get_vars ifname mode ssid wds powersave macaddr enable
 489
 490         [ -n "$ifname" ] || ifname="wlan${phy#phy}${if_idx:+-$if_idx}"
 491         if_idx=$((${if_idx:-0} + 1))
 492
 493         set_default wds 0
 494         set_default powersave 0
 495
 496         json_select ..
 497
 498         [ -n "$macaddr" ] || {
 499                 macaddr="$(mac80211_generate_mac $phy)"
 500                 macidx="$(($macidx + 1))"
 501         }
 502
 503         json_add_object data
 504         json_add_string ifname "$ifname"
 505         json_close_object
 506         json_select config
 507
 508         # It is far easier to delete and create the desired interface
 509         case "$mode" in
 510                 adhoc)
 511                         mac80211_iw_interface_add "$phy" "$ifname" adhoc || return
 512                 ;;
 513                 ap)
 514                         # Hostapd will handle recreating the interface and
 515                         # subsequent virtual APs belonging to the same PHY
 516                         if [ -n "$hostapd_ctrl" ]; then
 517                                 type=bss
 518                         else
 519                                 type=interface
 520                         fi
 521
 522                         mac80211_hostapd_setup_bss "$phy" "$ifname" "$macaddr" "$type" || return
 523
 524                         NEWAPLIST="${NEWAPLIST}$ifname "
 525                         [ -n "$hostapd_ctrl" ] || {
 526                                 hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd/$ifname}"
 527                         }
 528                 ;;
 529                 mesh)
 530                         mac80211_iw_interface_add "$phy" "$ifname" mp || return
 531                 ;;
 532                 monitor)
 533                         mac80211_iw_interface_add "$phy" "$ifname" monitor || return
 534                 ;;
 535                 sta)
 536                         local wdsflag=
 537                         [ "$enable" = 0 ] || staidx="$(($staidx + 1))"
 538                         [ "$wds" -gt 0 ] && wdsflag="4addr on"
 539                         mac80211_iw_interface_add "$phy" "$ifname" managed "$wdsflag" || return
 540                         if [ "$wds" -gt 0 ]; then
 541                                 iw "$ifname" set 4addr on
 542                         else
 543                                 iw "$ifname" set 4addr off
 544                         fi
 545                         [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
 546                         iw "$ifname" set power_save "$powersave"
 547                 ;;
 548         esac
 549
 550         case "$mode" in
 551                 monitor|mesh)
 552                         [ "$auto_channel" -gt 0 ] || iw dev "$ifname" set channel "$channel" $htmode
 553                 ;;
 554         esac
 555
 556         if [ "$mode" != "ap" ]; then
 557                 # ALL ap functionality will be passed to hostapd
 558                 # All interfaces must have unique mac addresses
 559                 # which can either be explicitly set in the device
 560                 # section, or automatically generated
 561                 ip link set dev "$ifname" address "$macaddr"
 562         fi
 563
 564         json_select ..
 565 }
 566
 567 mac80211_setup_supplicant() {
 568         local enable=$1
 569         local add_sp=0
 570         local spobj="$(ubus -S list | grep wpa_supplicant.${ifname})"
 571
 572         wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1
 573         wpa_supplicant_prepare_interface "$ifname" nl80211 || {
 574                 iw dev "$ifname" del
 575                 return 1
 576         }
 577         if [ "$mode" = "sta" ]; then
 578                 wpa_supplicant_add_network "$ifname"
 579         else
 580                 wpa_supplicant_add_network "$ifname" "$freq" "$htmode" "$noscan"
 581         fi
 582
 583         NEWSPLIST="${NEWSPLIST}$ifname "
 584
 585         if [ "${NEWAPLIST%% *}" != "${OLDAPLIST%% *}" ]; then
 586                 [ "$spobj" ] && ubus call wpa_supplicant.${phy} config_del "{\"iface\":\"$ifname\"}"
 587                 add_sp=1
 588         fi
 589         [ "$enable" = 0 ] && {
 590                 ubus call wpa_supplicant.${phy} config_del "{\"iface\":\"$ifname\"}"
 591                 ip link set dev "$ifname" down
 592                 return 0
 593         }
 594         [ -z "$spobj" ] && add_sp=1
 595
 596         if [ "$add_sp" = "1" ]; then
 597                 wpa_supplicant_run "$ifname" "$hostapd_ctrl"
 598         else
 599                 ubus call $spobj reload
 600         fi
 601 }
 602
 603 mac80211_setup_supplicant_noctl() {
 604         local enable=$1
 605         local spobj="$(ubus -S list | grep wpa_supplicant.${ifname})"
 606         wpa_supplicant_prepare_interface "$ifname" nl80211 || {
 607                 iw dev "$ifname" del
 608                 return 1
 609         }
 610
 611         wpa_supplicant_add_network "$ifname" "$freq" "$htmode" "$noscan"
 612
 613         NEWSPLIST="${NEWSPLIST}$ifname "
 614         [ "$enable" = 0 ] && {
 615                 ubus call wpa_supplicant.${phy} config_del "{\"iface\":\"$ifname\"}"
 616                 ip link set dev "$ifname" down
 617                 return 0
 618         }
 619         if [ -z "$spobj" ]; then
 620                 wpa_supplicant_run "$ifname"
 621         else
 622                 ubus call $spobj reload
 623         fi
 624 }
 625
 626 mac80211_setup_adhoc_htmode() {
 627         case "$htmode" in
 628                 VHT20|HT20) ibss_htmode=HT20;;
 629                 HT40*|VHT40|VHT160)
 630                         case "$hwmode" in
 631                                 a)
 632                                         case "$(( ($channel / 4) % 2 ))" in
 633                                                 1) ibss_htmode="HT40+" ;;
 634                                                 0) ibss_htmode="HT40-";;
 635                                         esac
 636                                 ;;
 637                                 *)
 638                                         case "$htmode" in
 639                                                 HT40+) ibss_htmode="HT40+";;
 640                                                 HT40-) ibss_htmode="HT40-";;
 641                                                 *)
 642                                                         if [ "$channel" -lt 7 ]; then
 643                                                                 ibss_htmode="HT40+"
 644                                                         else
 645                                                                 ibss_htmode="HT40-"
 646                                                         fi
 647                                                 ;;
 648                                         esac
 649                                 ;;
 650                         esac
 651                         [ "$auto_channel" -gt 0 ] && ibss_htmode="HT40+"
 652                 ;;
 653                 VHT80)
 654                         ibss_htmode="80MHZ"
 655                 ;;
 656                 NONE|NOHT)
 657                         ibss_htmode="NOHT"
 658                 ;;
 659                 *) ibss_htmode="" ;;
 660         esac
 661 }
 662
 663 mac80211_setup_adhoc() {
 664         local enable=$1
 665         json_get_vars bssid ssid key mcast_rate
 666
 667         [ "$enable" = 0 ] && {
 668                 ip link set dev "$ifname" down
 669                 return 0
 670         }
 671
 672         keyspec=
 673         [ "$auth_type" = "wep" ] && {
 674                 set_default key 1
 675                 case "$key" in
 676                         [1234])
 677                                 local idx
 678                                 for idx in 1 2 3 4; do
 679                                         json_get_var ikey "key$idx"
 680
 681                                         [ -n "$ikey" ] && {
 682                                                 ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
 683                                                 [ $idx -eq $key ] && ikey="d:$ikey"
 684                                                 append keyspec "$ikey"
 685                                         }
 686                                 done
 687                         ;;
 688                         *)
 689                                 append keyspec "d:0:$(prepare_key_wep "$key")"
 690                         ;;
 691                 esac
 692         }
 693
 694         brstr=
 695         for br in $basic_rate_list; do
 696                 wpa_supplicant_add_rate brstr "$br"
 697         done
 698
 699         mcval=
 700         [ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 701
 702         iw dev "$ifname" ibss join "$ssid" $freq $ibss_htmode fixed-freq $bssid \
 703                 beacon-interval $beacon_int \
 704                 ${brstr:+basic-rates $brstr} \
 705                 ${mcval:+mcast-rate $mcval} \
 706                 ${keyspec:+keys $keyspec}
 707 }
 708
 709 mac80211_setup_mesh() {
 710         local enable=$1
 711         json_get_vars ssid mesh_id mcast_rate
 712
 713         [ "$enable" = 0 ] && {
 714                 ip link set dev "$ifname" down
 715                 return 0
 716         }
 717
 718         mcval=
 719         [ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 720         [ -n "$mesh_id" ] && ssid="$mesh_id"
 721
 722         case "$htmode" in
 723                 VHT20|HT20) mesh_htmode=HT20;;
 724                 HT40*|VHT40)
 725                         case "$hwmode" in
 726                                 a)
 727                                         case "$(( ($channel / 4) % 2 ))" in
 728                                                 1) mesh_htmode="HT40+" ;;
 729                                                 0) mesh_htmode="HT40-";;
 730                                         esac
 731                                 ;;
 732                                 *)
 733                                         case "$htmode" in
 734                                                 HT40+) mesh_htmode="HT40+";;
 735                                                 HT40-) mesh_htmode="HT40-";;
 736                                                 *)
 737                                                         if [ "$channel" -lt 7 ]; then
 738                                                                 mesh_htmode="HT40+"
 739                                                         else
 740                                                                 mesh_htmode="HT40-"
 741                                                         fi
 742                                                 ;;
 743                                         esac
 744                                 ;;
 745                         esac
 746                 ;;
 747                 VHT80)
 748                         mesh_htmode="80Mhz"
 749                 ;;
 750                 VHT160)
 751                         mesh_htmode="160Mhz"
 752                 ;;
 753                 *) mesh_htmode="NOHT" ;;
 754         esac
 755         iw dev "$ifname" mesh join "$ssid" freq $freq $mesh_htmode \
 756                 ${mcval:+mcast-rate $mcval} \
 757                 beacon-interval $beacon_int
 758 }
 759
 760 mac80211_setup_vif() {
 761         local name="$1"
 762         local failed
 763         local action=up
 764
 765         json_select data
 766         json_get_vars ifname
 767         json_select ..
 768
 769         json_select config
 770         json_get_vars mode
 771         json_get_var vif_txpower txpower
 772         json_get_var vif_enable enable 1
 773
 774         [ "$vif_enable" = 1 ] || action=down
 775         logger ip link set dev "$ifname" $action
 776         ip link set dev "$ifname" "$action" || {
 777                 wireless_setup_vif_failed IFUP_ERROR
 778                 json_select ..
 779                 return
 780         }
 781         set_default vif_txpower "$txpower"
 782         [ -z "$vif_txpower" ] || iw dev "$ifname" set txpower fixed "${vif_txpower%%.*}00"
 783
 784         case "$mode" in
 785                 mesh)
 786                         wireless_vif_parse_encryption
 787                         freq="$(get_freq "$phy" "$channel")"
 788                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ] || chan_is_dfs "$phy" "$channel"; then
 789                                 mac80211_setup_supplicant $vif_enable || failed=1
 790                         else
 791                                 mac80211_setup_mesh $vif_enable
 792                         fi
 793                         for var in $MP_CONFIG_INT $MP_CONFIG_BOOL $MP_CONFIG_STRING; do
 794                                 json_get_var mp_val "$var"
 795                                 [ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$var" "$mp_val"
 796                         done
 797                 ;;
 798                 adhoc)
 799                         wireless_vif_parse_encryption
 800                         mac80211_setup_adhoc_htmode
 801                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
 802                                 freq="$(get_freq "$phy" "$channel")"
 803                                 mac80211_setup_supplicant_noctl $vif_enable || failed=1
 804                         else
 805                                 mac80211_setup_adhoc $vif_enable
 806                         fi
 807                 ;;
 808                 sta)
 809                         mac80211_setup_supplicant $vif_enable || failed=1
 810                 ;;
 811         esac
 812
 813         json_select ..
 814         [ -n "$failed" ] || wireless_add_vif "$name" "$ifname"
 815 }
 816
 817 get_freq() {
 818         local phy="$1"
 819         local chan="$2"
 820         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
 821 }
 822
 823 chan_is_dfs() {
 824         local phy="$1"
 825         local chan="$2"
 826         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep -q "MHz.*radar detection"
 827         return $!
 828 }
 829
 830 mac80211_vap_cleanup() {
 831         local service="$1"
 832         local vaps="$2"
 833
 834         for wdev in $vaps; do
 835                 ubus call ${service}.${phy} config_remove "{\"iface\":\"$wdev\"}"
 836                 ip link set dev "$wdev" down 2>/dev/null
 837                 iw dev "$wdev" del
 838         done
 839 }
 840
 841 mac80211_interface_cleanup() {
 842         local phy="$1"
 843         local primary_ap=$(uci -q -P /var/state get wireless._${phy}.aplist)
 844         primary_ap=${primary_ap%% *}
 845
 846         mac80211_vap_cleanup hostapd "${primary_ap}"
 847         mac80211_vap_cleanup wpa_supplicant "$(uci -q -P /var/state get wireless._${phy}.splist)"
 848 }
 849
 850 mac80211_set_noscan() {
 851         hostapd_noscan=1
 852 }
 853
 854 drv_mac80211_cleanup() {
 855         hostapd_common_cleanup
 856 }
 857
 858 drv_mac80211_setup() {
 859         json_select config
 860         json_get_vars \
 861                 phy macaddr path \
 862                 country chanbw distance \
 863                 txpower antenna_gain \
 864                 rxantenna txantenna \
 865                 frag rts beacon_int:100 htmode
 866         json_get_values basic_rate_list basic_rate
 867         json_select ..
 868
 869         find_phy || {
 870                 echo "Could not find PHY for device '$1'"
 871                 wireless_set_retry 0
 872                 return 1
 873         }
 874
 875         [ -z "$(uci -q -P /var/state show wireless._${phy})" ] && {
 876                 uci -q -P /var/state set wireless._${phy}=phy
 877                 wireless_set_data phy="$phy"
 878         }
 879
 880         # convert channel to frequency
 881         [ "$auto_channel" -gt 0 ] || freq="$(get_freq "$phy" "$channel")"
 882
 883         [ -n "$country" ] && {
 884                 iw reg get | grep -q "^country $country:" || {
 885                         iw reg set "$country"
 886                         sleep 1
 887                 }
 888         }
 889
 890         hostapd_conf_file="/var/run/hostapd-$phy.conf"
 891
 892         no_ap=1
 893         macidx=0
 894         staidx=0
 895
 896         [ -n "$chanbw" ] && {
 897                 for file in /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode; do
 898                         [ -f "$file" ] && echo "$chanbw" > "$file"
 899                 done
 900         }
 901
 902         set_default rxantenna 0xffffffff
 903         set_default txantenna 0xffffffff
 904         set_default distance 0
 905         set_default antenna_gain 0
 906
 907         [ "$txantenna" = "all" ] && txantenna=0xffffffff
 908         [ "$rxantenna" = "all" ] && rxantenna=0xffffffff
 909
 910         iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
 911         iw phy "$phy" set antenna_gain $antenna_gain
 912         iw phy "$phy" set distance "$distance"
 913
 914         [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
 915         [ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
 916
 917         has_ap=
 918         hostapd_ctrl=
 919         hostapd_noscan=
 920         for_each_interface "ap" mac80211_check_ap
 921
 922         rm -f "$hostapd_conf_file"
 923
 924         for_each_interface "sta adhoc mesh" mac80211_set_noscan
 925         [ -n "$has_ap" ] && mac80211_hostapd_setup_base "$phy"
 926
 927         for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
 928         NEWAPLIST=
 929         for_each_interface "ap" mac80211_prepare_vif
 930         OLDAPLIST=$(uci -q -P /var/state get wireless._${phy}.aplist)
 931         NEW_MD5=$(md5sum ${hostapd_conf_file})
 932         OLD_MD5=$(uci -q -P /var/state get wireless._${phy}.md5)
 933         if [ "${NEWAPLIST}" != "${OLDAPLIST}" ]; then
 934                 mac80211_vap_cleanup hostapd "${OLDAPLIST}"
 935                 [ -n "${NEWAPLIST}" ] && mac80211_iw_interface_add "$phy" "${NEWAPLIST%% *}" __ap || return
 936         fi
 937         local add_ap=0
 938         local primary_ap=${NEWAPLIST%% *}
 939         [ -n "$hostapd_ctrl" ] && {
 940                 if [ -n "$(ubus list | grep hostapd.$primary_ap)" ]; then
 941                         [ "${NEW_MD5}" = "${OLD_MD5}" ] || {
 942                                 ubus call hostapd.$primary_ap reload
 943                         }
 944                 else
 945                         add_ap=1
 946                         ubus call hostapd.${phy} config_add "{\"iface\":\"$primary_ap\", \"config\":\"${hostapd_conf_file}\"}"
 947                 fi
 948                 ret="$?"
 949                 [ "$ret" != 0 ] && {
 950                         wireless_setup_failed HOSTAPD_START_FAILED
 951                         return
 952                 }
 953         }
 954         uci -q -P /var/state set wireless._${phy}.aplist="${NEWAPLIST}"
 955         uci -q -P /var/state set wireless._${phy}.md5="${NEW_MD5}"
 956
 957         [ "${add_ap}" = 1 ] && sleep 1
 958         for_each_interface "ap" mac80211_setup_vif
 959
 960         NEWSPLIST=
 961         OLDSPLIST=$(uci -q -P /var/state get wireless._${phy}.splist)
 962         for_each_interface "sta adhoc mesh monitor" mac80211_setup_vif
 963
 964         uci -q -P /var/state set wireless._${phy}.splist="${NEWSPLIST}"
 965
 966         local foundvap
 967         local dropvap=""
 968         for oldvap in $OLDSPLIST; do
 969                 foundvap=0
 970                 for newvap in $NEWSPLIST; do
 971                         [ "$oldvap" = "$newvap" ] && foundvap=1
 972                 done
 973                 [ "$foundvap" = "0" ] && dropvap="$dropvap $oldvap"
 974         done
 975         [ -n "$dropvap" ] && mac80211_vap_cleanup wpa_supplicant "$dropvap"
 976         wireless_set_up
 977 }
 978
 979 drv_mac80211_teardown() {
 980         wireless_process_kill_all
 981
 982         json_select data
 983         json_get_vars phy
 984         json_select ..
 985
 986         mac80211_interface_cleanup "$phy"
 987         uci -q -P /var/state revert wireless._${phy}
 988 }
 989
 990 add_driver mac80211