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_string distance
  32         config_add_int beacon_int chanbw frag rts
  33         config_add_int rxantenna txantenna antenna_gain txpower
  34         config_add_boolean noscan ht_coex acs_exclude_dfs
  35         config_add_array ht_capab
  36         config_add_array channels
  37         config_add_boolean \
  38                 rxldpc \
  39                 short_gi_80 \
  40                 short_gi_160 \
  41                 tx_stbc_2by1 \
  42                 su_beamformer \
  43                 su_beamformee \
  44                 mu_beamformer \
  45                 mu_beamformee \
  46                 vht_txop_ps \
  47                 htc_vht \
  48                 rx_antenna_pattern \
  49                 tx_antenna_pattern
  50         config_add_int vht_max_a_mpdu_len_exp vht_max_mpdu vht_link_adapt vht160 rx_stbc tx_stbc
  51         config_add_boolean \
  52                 ldpc \
  53                 greenfield \
  54                 short_gi_20 \
  55                 short_gi_40 \
  56                 max_amsdu \
  57                 dsss_cck_40
  58 }
  59
  60 drv_mac80211_init_iface_config() {
  61         hostapd_common_add_bss_config
  62
  63         config_add_string 'macaddr:macaddr' ifname
  64
  65         config_add_boolean wds powersave enable
  66         config_add_string wds_bridge
  67         config_add_int maxassoc
  68         config_add_int max_listen_int
  69         config_add_int dtim_period
  70         config_add_int start_disabled
  71
  72         # mesh
  73         config_add_string mesh_id
  74         config_add_int $MP_CONFIG_INT
  75         config_add_boolean $MP_CONFIG_BOOL
  76         config_add_string $MP_CONFIG_STRING
  77 }
  78
  79 mac80211_add_capabilities() {
  80         local __var="$1"; shift
  81         local __mask="$1"; shift
  82         local __out= oifs
  83
  84         oifs="$IFS"
  85         IFS=:
  86         for capab in "$@"; do
  87                 set -- $capab
  88
  89                 [ "$(($4))" -gt 0 ] || continue
  90                 [ "$(($__mask & $2))" -eq "$((${3:-$2}))" ] || continue
  91                 __out="$__out[$1]"
  92         done
  93         IFS="$oifs"
  94
  95         export -n -- "$__var=$__out"
  96 }
  97
  98 mac80211_hostapd_setup_base() {
  99         local phy="$1"
 100
 101         json_select config
 102
 103         [ "$auto_channel" -gt 0 ] && channel=acs_survey
 104         [ "$auto_channel" -gt 0 ] && json_get_values channel_list channels
 105
 106         [ "$auto_channel" -gt 0 ] && json_get_vars acs_exclude_dfs
 107         [ -n "$acs_exclude_dfs" ] && [ "$acs_exclude_dfs" -gt 0 ] &&
 108                 append base_cfg "acs_exclude_dfs=1" "$N"
 109
 110         json_get_vars noscan ht_coex
 111         json_get_values ht_capab_list ht_capab tx_burst
 112
 113         set_default noscan 0
 114
 115         [ "$noscan" -gt 0 ] && hostapd_noscan=1
 116         [ "$tx_burst" = 0 ] && tx_burst=
 117
 118         ieee80211n=1
 119         ht_capab=
 120         case "$htmode" in
 121                 VHT20|HT20) ;;
 122                 HT40*|VHT40|VHT80|VHT160)
 123                         case "$hwmode" in
 124                                 a)
 125                                         case "$(( ($channel / 4) % 2 ))" in
 126                                                 1) ht_capab="[HT40+]";;
 127                                                 0) ht_capab="[HT40-]";;
 128                                         esac
 129                                 ;;
 130                                 *)
 131                                         case "$htmode" in
 132                                                 HT40+) ht_capab="[HT40+]";;
 133                                                 HT40-) ht_capab="[HT40-]";;
 134                                                 *)
 135                                                         if [ "$channel" -lt 7 ]; then
 136                                                                 ht_capab="[HT40+]"
 137                                                         else
 138                                                                 ht_capab="[HT40-]"
 139                                                         fi
 140                                                 ;;
 141                                         esac
 142                                 ;;
 143                         esac
 144                         [ "$auto_channel" -gt 0 ] && ht_capab="[HT40+]"
 145                 ;;
 146                 *) ieee80211n= ;;
 147         esac
 148
 149         [ -n "$ieee80211n" ] && {
 150                 append base_cfg "ieee80211n=1" "$N"
 151
 152                 set_default ht_coex 0
 153                 append base_cfg "ht_coex=$ht_coex" "$N"
 154
 155                 json_get_vars \
 156                         ldpc:1 \
 157                         greenfield:0 \
 158                         short_gi_20:1 \
 159                         short_gi_40:1 \
 160                         tx_stbc:1 \
 161                         rx_stbc:3 \
 162                         max_amsdu:1 \
 163                         dsss_cck_40:1
 164
 165                 ht_cap_mask=0
 166                 for cap in $(iw phy "$phy" info | grep 'Capabilities:' | cut -d: -f2); do
 167                         ht_cap_mask="$(($ht_cap_mask | $cap))"
 168                 done
 169
 170                 cap_rx_stbc=$((($ht_cap_mask >> 8) & 3))
 171                 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
 172                 ht_cap_mask="$(( ($ht_cap_mask & ~(0x300)) | ($cap_rx_stbc << 8) ))"
 173
 174                 mac80211_add_capabilities ht_capab_flags $ht_cap_mask \
 175                         LDPC:0x1::$ldpc \
 176                         GF:0x10::$greenfield \
 177                         SHORT-GI-20:0x20::$short_gi_20 \
 178                         SHORT-GI-40:0x40::$short_gi_40 \
 179                         TX-STBC:0x80::$tx_stbc \
 180                         RX-STBC1:0x300:0x100:1 \
 181                         RX-STBC12:0x300:0x200:1 \
 182                         RX-STBC123:0x300:0x300:1 \
 183                         MAX-AMSDU-7935:0x800::$max_amsdu \
 184                         DSSS_CCK-40:0x1000::$dsss_cck_40
 185
 186                 ht_capab="$ht_capab$ht_capab_flags"
 187                 [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
 188         }
 189
 190         # 802.11ac
 191         enable_ac=0
 192         idx="$channel"
 193         case "$htmode" in
 194                 VHT20) enable_ac=1;;
 195                 VHT40)
 196                         case "$(( ($channel / 4) % 2 ))" in
 197                                 1) idx=$(($channel + 2));;
 198                                 0) idx=$(($channel - 2));;
 199                         esac
 200                         enable_ac=1
 201                         append base_cfg "vht_oper_chwidth=0" "$N"
 202                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 203                 ;;
 204                 VHT80)
 205                         case "$(( ($channel / 4) % 4 ))" in
 206                                 1) idx=$(($channel + 6));;
 207                                 2) idx=$(($channel + 2));;
 208                                 3) idx=$(($channel - 2));;
 209                                 0) idx=$(($channel - 6));;
 210                         esac
 211                         enable_ac=1
 212                         append base_cfg "vht_oper_chwidth=1" "$N"
 213                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 214                 ;;
 215                 VHT160)
 216                         case "$channel" in
 217                                 36|40|44|48|52|56|60|64) idx=50;;
 218                                 100|104|108|112|116|120|124|128) idx=114;;
 219                         esac
 220                         enable_ac=1
 221                         append base_cfg "vht_oper_chwidth=2" "$N"
 222                         append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
 223                 ;;
 224         esac
 225
 226         if [ "$enable_ac" != "0" ]; then
 227                 json_get_vars \
 228                         rxldpc:1 \
 229                         short_gi_80:1 \
 230                         short_gi_160:1 \
 231                         tx_stbc_2by1:1 \
 232                         su_beamformer:1 \
 233                         su_beamformee:1 \
 234                         mu_beamformer:1 \
 235                         mu_beamformee:1 \
 236                         vht_txop_ps:1 \
 237                         htc_vht:1 \
 238                         rx_antenna_pattern:1 \
 239                         tx_antenna_pattern:1 \
 240                         vht_max_a_mpdu_len_exp:7 \
 241                         vht_max_mpdu:11454 \
 242                         rx_stbc:4 \
 243                         vht_link_adapt:3 \
 244                         vht160:2
 245
 246                 set_default tx_burst 2.0
 247                 append base_cfg "ieee80211ac=1" "$N"
 248                 vht_cap=0
 249                 for cap in $(iw phy "$phy" info | awk -F "[()]" '/VHT Capabilities/ { print $2 }'); do
 250                         vht_cap="$(($vht_cap | $cap))"
 251                 done
 252
 253                 cap_rx_stbc=$((($vht_cap >> 8) & 7))
 254                 [ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
 255                 vht_cap="$(( ($vht_cap & ~(0x700)) | ($cap_rx_stbc << 8) ))"
 256
 257                 mac80211_add_capabilities vht_capab $vht_cap \
 258                         RXLDPC:0x10::$rxldpc \
 259                         SHORT-GI-80:0x20::$short_gi_80 \
 260                         SHORT-GI-160:0x40::$short_gi_160 \
 261                         TX-STBC-2BY1:0x80::$tx_stbc_2by1 \
 262                         SU-BEAMFORMER:0x800::$su_beamformer \
 263                         SU-BEAMFORMEE:0x1000::$su_beamformee \
 264                         MU-BEAMFORMER:0x80000::$mu_beamformer \
 265                         MU-BEAMFORMEE:0x100000::$mu_beamformee \
 266                         VHT-TXOP-PS:0x200000::$vht_txop_ps \
 267                         HTC-VHT:0x400000::$htc_vht \
 268                         RX-ANTENNA-PATTERN:0x10000000::$rx_antenna_pattern \
 269                         TX-ANTENNA-PATTERN:0x20000000::$tx_antenna_pattern \
 270                         RX-STBC-1:0x700:0x100:1 \
 271                         RX-STBC-12:0x700:0x200:1 \
 272                         RX-STBC-123:0x700:0x300:1 \
 273                         RX-STBC-1234:0x700:0x400:1 \
 274
 275                 # supported Channel widths
 276                 vht160_hw=0
 277                 [ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \
 278                         vht160_hw=1
 279                 [ "$(($vht_cap & 12))" -eq 8 -a 2 -le "$vht160" ] && \
 280                         vht160_hw=2
 281                 [ "$vht160_hw" = 1 ] && vht_capab="$vht_capab[VHT160]"
 282                 [ "$vht160_hw" = 2 ] && vht_capab="$vht_capab[VHT160-80PLUS80]"
 283
 284                 # maximum MPDU length
 285                 vht_max_mpdu_hw=3895
 286                 [ "$(($vht_cap & 3))" -ge 1 -a 7991 -le "$vht_max_mpdu" ] && \
 287                         vht_max_mpdu_hw=7991
 288                 [ "$(($vht_cap & 3))" -ge 2 -a 11454 -le "$vht_max_mpdu" ] && \
 289                         vht_max_mpdu_hw=11454
 290                 [ "$vht_max_mpdu_hw" != 3895 ] && \
 291                         vht_capab="$vht_capab[MAX-MPDU-$vht_max_mpdu_hw]"
 292
 293                 # maximum A-MPDU length exponent
 294                 vht_max_a_mpdu_len_exp_hw=0
 295                 [ "$(($vht_cap & 58720256))" -ge 8388608 -a 1 -le "$vht_max_a_mpdu_len_exp" ] && \
 296                         vht_max_a_mpdu_len_exp_hw=1
 297                 [ "$(($vht_cap & 58720256))" -ge 16777216 -a 2 -le "$vht_max_a_mpdu_len_exp" ] && \
 298                         vht_max_a_mpdu_len_exp_hw=2
 299                 [ "$(($vht_cap & 58720256))" -ge 25165824 -a 3 -le "$vht_max_a_mpdu_len_exp" ] && \
 300                         vht_max_a_mpdu_len_exp_hw=3
 301                 [ "$(($vht_cap & 58720256))" -ge 33554432 -a 4 -le "$vht_max_a_mpdu_len_exp" ] && \
 302                         vht_max_a_mpdu_len_exp_hw=4
 303                 [ "$(($vht_cap & 58720256))" -ge 41943040 -a 5 -le "$vht_max_a_mpdu_len_exp" ] && \
 304                         vht_max_a_mpdu_len_exp_hw=5
 305                 [ "$(($vht_cap & 58720256))" -ge 50331648 -a 6 -le "$vht_max_a_mpdu_len_exp" ] && \
 306                         vht_max_a_mpdu_len_exp_hw=6
 307                 [ "$(($vht_cap & 58720256))" -ge 58720256 -a 7 -le "$vht_max_a_mpdu_len_exp" ] && \
 308                         vht_max_a_mpdu_len_exp_hw=7
 309                 vht_capab="$vht_capab[MAX-A-MPDU-LEN-EXP$vht_max_a_mpdu_len_exp_hw]"
 310
 311                 # whether or not the STA supports link adaptation using VHT variant
 312                 vht_link_adapt_hw=0
 313                 [ "$(($vht_cap & 201326592))" -ge 134217728 -a 2 -le "$vht_link_adapt" ] && \
 314                         vht_link_adapt_hw=2
 315                 [ "$(($vht_cap & 201326592))" -ge 201326592 -a 3 -le "$vht_link_adapt" ] && \
 316                         vht_link_adapt_hw=3
 317                 [ "$vht_link_adapt_hw" != 0 ] && \
 318                         vht_capab="$vht_capab[VHT-LINK-ADAPT-$vht_link_adapt_hw]"
 319
 320                 [ -n "$vht_capab" ] && append base_cfg "vht_capab=$vht_capab" "$N"
 321         fi
 322
 323         hostapd_prepare_device_config "$hostapd_conf_file" nl80211
 324         cat >> "$hostapd_conf_file" <<EOF
 325 ${channel:+channel=$channel}
 326 ${channel_list:+chanlist=$channel_list}
 327 ${hostapd_noscan:+noscan=1}
 328 ${tx_burst:+tx_queue_data2_burst=$tx_burst}
 329 $base_cfg
 330
 331 EOF
 332         json_select ..
 333         radio_md5sum=$(md5sum $hostapd_conf_file | cut -d" " -f1)
 334         echo "radio_config_id=${radio_md5sum}" >> $hostapd_conf_file
 335 }
 336
 337 mac80211_hostapd_setup_bss() {
 338         local phy="$1"
 339         local ifname="$2"
 340         local macaddr="$3"
 341         local type="$4"
 342
 343         hostapd_cfg=
 344         append hostapd_cfg "$type=$ifname" "$N"
 345
 346         hostapd_set_bss_options hostapd_cfg "$vif" || return 1
 347         json_get_vars wds wds_bridge dtim_period max_listen_int start_disabled
 348
 349         set_default wds 0
 350         set_default start_disabled 0
 351
 352         [ "$wds" -gt 0 ] && {
 353                 append hostapd_cfg "wds_sta=1" "$N"
 354                 [ -n "$wds_bridge" ] && append hostapd_cfg "wds_bridge=$wds_bridge" "$N"
 355         }
 356         [ "$staidx" -gt 0 -o "$start_disabled" -eq 1 ] && append hostapd_cfg "start_disabled=1" "$N"
 357
 358         cat >> /var/run/hostapd-$phy.conf <<EOF
 359 $hostapd_cfg
 360 bssid=$macaddr
 361 ${dtim_period:+dtim_period=$dtim_period}
 362 ${max_listen_int:+max_listen_interval=$max_listen_int}
 363 EOF
 364 }
 365
 366 mac80211_get_addr() {
 367         local phy="$1"
 368         local idx="$(($2 + 1))"
 369
 370         head -n $(($macidx + 1)) /sys/class/ieee80211/${phy}/addresses | tail -n1
 371 }
 372
 373 mac80211_generate_mac() {
 374         local phy="$1"
 375         local id="${macidx:-0}"
 376
 377         local ref="$(cat /sys/class/ieee80211/${phy}/macaddress)"
 378         local mask="$(cat /sys/class/ieee80211/${phy}/address_mask)"
 379
 380         [ "$mask" = "00:00:00:00:00:00" ] && {
 381                 mask="ff:ff:ff:ff:ff:ff";
 382
 383                 [ "$(wc -l < /sys/class/ieee80211/${phy}/addresses)" -gt 1 ] && {
 384                         addr="$(mac80211_get_addr "$phy" "$id")"
 385                         [ -n "$addr" ] && {
 386                                 echo "$addr"
 387                                 return
 388                         }
 389                 }
 390         }
 391
 392         local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
 393
 394         local mask1=$1
 395         local mask6=$6
 396
 397         local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
 398
 399         macidx=$(($id + 1))
 400         [ "$((0x$mask1))" -gt 0 ] && {
 401                 b1="0x$1"
 402                 [ "$id" -gt 0 ] && \
 403                         b1=$(($b1 ^ ((($id - !($b1 & 2)) << 2) | 0x2)))
 404                 printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6
 405                 return
 406         }
 407
 408         [ "$((0x$mask6))" -lt 255 ] && {
 409                 printf "%s:%s:%s:%s:%s:%02x" $1 $2 $3 $4 $5 $(( 0x$6 ^ $id ))
 410                 return
 411         }
 412
 413         off2=$(( (0x$6 + $id) / 0x100 ))
 414         printf "%s:%s:%s:%s:%02x:%02x" \
 415                 $1 $2 $3 $4 \
 416                 $(( (0x$5 + $off2) % 0x100 )) \
 417                 $(( (0x$6 + $id) % 0x100 ))
 418 }
 419
 420 find_phy() {
 421         [ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0
 422         [ -n "$path" ] && {
 423                 phy="$(mac80211_path_to_phy "$path")"
 424                 [ -n "$phy" ] && return 0
 425         }
 426         [ -n "$macaddr" ] && {
 427                 for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
 428                         grep -i -q "$macaddr" "/sys/class/ieee80211/${phy}/macaddress" && return 0
 429                 done
 430         }
 431         return 1
 432 }
 433
 434 mac80211_check_ap() {
 435         has_ap=1
 436 }
 437
 438 mac80211_iw_interface_add() {
 439         local phy="$1"
 440         local ifname="$2"
 441         local type="$3"
 442         local wdsflag="$4"
 443         local rc
 444         local oldifname
 445
 446         iw phy "$phy" interface add "$ifname" type "$type" $wdsflag >/dev/null 2>&1
 447         rc="$?"
 448
 449         [ "$rc" = 233 ] && {
 450                 # Device might have just been deleted, give the kernel some time to finish cleaning it up
 451                 sleep 1
 452
 453                 iw phy "$phy" interface add "$ifname" type "$type" $wdsflag >/dev/null 2>&1
 454                 rc="$?"
 455         }
 456
 457         [ "$rc" = 233 ] && {
 458                 # Keep matching pre-existing interface
 459                 [ -d "/sys/class/ieee80211/${phy}/device/net/${ifname}" ] && \
 460                 case "$(iw dev $ifname info | grep "^\ttype" | cut -d' ' -f2- 2>/dev/null)" in
 461                         "AP")
 462                                 [ "$type" = "__ap" ] && rc=0
 463                                 ;;
 464                         "IBSS")
 465                                 [ "$type" = "adhoc" ] && rc=0
 466                                 ;;
 467                         "managed")
 468                                 [ "$type" = "managed" ] && rc=0
 469                                 ;;
 470                         "mesh point")
 471                                 [ "$type" = "mp" ] && rc=0
 472                                 ;;
 473                         "monitor")
 474                                 [ "$type" = "monitor" ] && rc=0
 475                                 ;;
 476                 esac
 477         }
 478
 479         [ "$rc" = 233 ] && {
 480                 iw dev "$ifname" del >/dev/null 2>&1
 481                 [ "$?" = 0 ] && {
 482                         sleep 1
 483
 484                         iw phy "$phy" interface add "$ifname" type "$type" $wdsflag >/dev/null 2>&1
 485                         rc="$?"
 486                 }
 487         }
 488
 489         [ "$rc" != 0 ] && {
 490                 # Device might not support virtual interfaces, so the interface never got deleted in the first place.
 491                 # Check if the interface already exists, and avoid failing in this case.
 492                 [ -d "/sys/class/ieee80211/${phy}/device/net/${ifname}" ] && rc=0
 493         }
 494
 495         [ "$rc" != 0 ] && {
 496                 # Device doesn't support virtual interfaces and may have existing interface other than ifname.
 497                 oldifname="$(basename "/sys/class/ieee80211/${phy}/device/net"/* 2>/dev/null)"
 498                 [ "$oldifname" ] && ip link set "$oldifname" name "$ifname" 1>/dev/null 2>&1
 499                 rc="$?"
 500         }
 501
 502         [ "$rc" != 0 ] && wireless_setup_failed INTERFACE_CREATION_FAILED
 503         return $rc
 504 }
 505
 506 mac80211_prepare_vif() {
 507         json_select config
 508
 509         json_get_vars ifname mode ssid wds powersave macaddr enable wpa_psk_file vlan_file
 510
 511         [ -n "$ifname" ] || ifname="wlan${phy#phy}${if_idx:+-$if_idx}"
 512         if_idx=$((${if_idx:-0} + 1))
 513
 514         set_default wds 0
 515         set_default powersave 0
 516
 517         json_select ..
 518
 519         [ -n "$macaddr" ] || {
 520                 macaddr="$(mac80211_generate_mac $phy)"
 521                 macidx="$(($macidx + 1))"
 522         }
 523
 524         json_add_object data
 525         json_add_string ifname "$ifname"
 526         json_close_object
 527
 528         [ "$mode" == "ap" ] && {
 529                 [ -z "$wpa_psk_file" ] && hostapd_set_psk "$ifname"
 530                 [ -z "$vlan_file" ] && hostapd_set_vlan "$ifname"
 531         }
 532
 533         json_select config
 534
 535         # It is far easier to delete and create the desired interface
 536         case "$mode" in
 537                 adhoc)
 538                         mac80211_iw_interface_add "$phy" "$ifname" adhoc || return
 539                 ;;
 540                 ap)
 541                         # Hostapd will handle recreating the interface and
 542                         # subsequent virtual APs belonging to the same PHY
 543                         if [ -n "$hostapd_ctrl" ]; then
 544                                 type=bss
 545                         else
 546                                 type=interface
 547                         fi
 548
 549                         mac80211_hostapd_setup_bss "$phy" "$ifname" "$macaddr" "$type" || return
 550
 551                         NEWAPLIST="${NEWAPLIST}$ifname "
 552                         [ -n "$hostapd_ctrl" ] || {
 553                                 ap_ifname="${ifname}"
 554                                 hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd/$ifname}"
 555                         }
 556                 ;;
 557                 mesh)
 558                         mac80211_iw_interface_add "$phy" "$ifname" mp || return
 559                 ;;
 560                 monitor)
 561                         mac80211_iw_interface_add "$phy" "$ifname" monitor || return
 562                 ;;
 563                 sta)
 564                         local wdsflag=
 565                         [ "$enable" = 0 ] || staidx="$(($staidx + 1))"
 566                         [ "$wds" -gt 0 ] && wdsflag="4addr on"
 567                         mac80211_iw_interface_add "$phy" "$ifname" managed "$wdsflag" || return
 568                         if [ "$wds" -gt 0 ]; then
 569                                 iw "$ifname" set 4addr on
 570                         else
 571                                 iw "$ifname" set 4addr off
 572                         fi
 573                         [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
 574                         iw "$ifname" set power_save "$powersave"
 575                 ;;
 576         esac
 577
 578         case "$mode" in
 579                 monitor|mesh)
 580                         [ "$auto_channel" -gt 0 ] || iw dev "$ifname" set channel "$channel" $iw_htmode
 581                 ;;
 582         esac
 583
 584         if [ "$mode" != "ap" ]; then
 585                 # ALL ap functionality will be passed to hostapd
 586                 # All interfaces must have unique mac addresses
 587                 # which can either be explicitly set in the device
 588                 # section, or automatically generated
 589                 ip link set dev "$ifname" address "$macaddr"
 590         fi
 591
 592         json_select ..
 593 }
 594
 595 mac80211_setup_supplicant() {
 596         local enable=$1
 597         local add_sp=0
 598         local spobj="$(ubus -S list | grep wpa_supplicant.${ifname})"
 599
 600         [ "$enable" = 0 ] && {
 601                 ubus call wpa_supplicant.${phy} config_del "{\"iface\":\"$ifname\"}"
 602                 ip link set dev "$ifname" down
 603                 iw dev "$ifname" del
 604                 return 0
 605         }
 606
 607         wpa_supplicant_prepare_interface "$ifname" nl80211 || {
 608                 iw dev "$ifname" del
 609                 return 1
 610         }
 611         if [ "$mode" = "sta" ]; then
 612                 wpa_supplicant_add_network "$ifname"
 613         else
 614                 wpa_supplicant_add_network "$ifname" "$freq" "$htmode" "$noscan"
 615         fi
 616
 617         NEWSPLIST="${NEWSPLIST}$ifname "
 618
 619         if [ "${NEWAPLIST%% *}" != "${OLDAPLIST%% *}" ]; then
 620                 [ "$spobj" ] && ubus call wpa_supplicant config_remove "{\"iface\":\"$ifname\"}"
 621                 add_sp=1
 622         fi
 623         [ -z "$spobj" ] && add_sp=1
 624
 625         NEW_MD5_SP=$(test -e "${_config}" && md5sum ${_config})
 626         OLD_MD5_SP=$(uci -q -P /var/state get wireless._${phy}.md5_${ifname})
 627         if [ "$add_sp" = "1" ]; then
 628                 wpa_supplicant_run "$ifname" "$hostapd_ctrl"
 629         else
 630                 [ "${NEW_MD5_SP}" == "${OLD_MD5_SP}" ] || ubus call $spobj reload
 631         fi
 632         uci -q -P /var/state set wireless._${phy}.md5_${ifname}="${NEW_MD5_SP}"
 633         return 0
 634 }
 635
 636 mac80211_setup_supplicant_noctl() {
 637         local enable=$1
 638         local spobj="$(ubus -S list | grep wpa_supplicant.${ifname})"
 639         wpa_supplicant_prepare_interface "$ifname" nl80211 || {
 640                 iw dev "$ifname" del
 641                 return 1
 642         }
 643
 644         wpa_supplicant_add_network "$ifname" "$freq" "$htmode" "$noscan"
 645
 646         NEWSPLIST="${NEWSPLIST}$ifname "
 647         [ "$enable" = 0 ] && {
 648                 ubus call wpa_supplicant config_remove "{\"iface\":\"$ifname\"}"
 649                 ip link set dev "$ifname" down
 650                 return 0
 651         }
 652         if [ -z "$spobj" ]; then
 653                 wpa_supplicant_run "$ifname"
 654         else
 655                 ubus call $spobj reload
 656         fi
 657 }
 658
 659 mac80211_prepare_iw_htmode() {
 660         case "$htmode" in
 661                 VHT20|HT20) iw_htmode=HT20;;
 662                 HT40*|VHT40|VHT160)
 663                         case "$hwmode" in
 664                                 a)
 665                                         case "$(( ($channel / 4) % 2 ))" in
 666                                                 1) iw_htmode="HT40+" ;;
 667                                                 0) iw_htmode="HT40-";;
 668                                         esac
 669                                 ;;
 670                                 *)
 671                                         case "$htmode" in
 672                                                 HT40+) iw_htmode="HT40+";;
 673                                                 HT40-) iw_htmode="HT40-";;
 674                                                 *)
 675                                                         if [ "$channel" -lt 7 ]; then
 676                                                                 iw_htmode="HT40+"
 677                                                         else
 678                                                                 iw_htmode="HT40-"
 679                                                         fi
 680                                                 ;;
 681                                         esac
 682                                 ;;
 683                         esac
 684                         [ "$auto_channel" -gt 0 ] && iw_htmode="HT40+"
 685                 ;;
 686                 VHT80)
 687                         iw_htmode="80MHZ"
 688                 ;;
 689                 NONE|NOHT)
 690                         iw_htmode="NOHT"
 691                 ;;
 692                 *) iw_htmode="" ;;
 693         esac
 694 }
 695
 696 mac80211_setup_adhoc() {
 697         local enable=$1
 698         json_get_vars bssid ssid key mcast_rate
 699
 700         NEWUMLIST="${NEWUMLIST}$ifname "
 701
 702         [ "$enable" = 0 ] && {
 703                 ip link set dev "$ifname" down
 704                 return 0
 705         }
 706
 707         keyspec=
 708         [ "$auth_type" = "wep" ] && {
 709                 set_default key 1
 710                 case "$key" in
 711                         [1234])
 712                                 local idx
 713                                 for idx in 1 2 3 4; do
 714                                         json_get_var ikey "key$idx"
 715
 716                                         [ -n "$ikey" ] && {
 717                                                 ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
 718                                                 [ $idx -eq $key ] && ikey="d:$ikey"
 719                                                 append keyspec "$ikey"
 720                                         }
 721                                 done
 722                         ;;
 723                         *)
 724                                 append keyspec "d:0:$(prepare_key_wep "$key")"
 725                         ;;
 726                 esac
 727         }
 728
 729         brstr=
 730         for br in $basic_rate_list; do
 731                 wpa_supplicant_add_rate brstr "$br"
 732         done
 733
 734         mcval=
 735         [ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 736
 737         iw dev "$ifname" ibss join "$ssid" $freq $iw_htmode fixed-freq $bssid \
 738                 beacon-interval $beacon_int \
 739                 ${brstr:+basic-rates $brstr} \
 740                 ${mcval:+mcast-rate $mcval} \
 741                 ${keyspec:+keys $keyspec}
 742 }
 743
 744 mac80211_setup_mesh() {
 745         local enable=$1
 746         json_get_vars ssid mesh_id mcast_rate
 747
 748         NEWUMLIST="${NEWUMLIST}$ifname "
 749
 750         [ "$enable" = 0 ] && {
 751                 ip link set dev "$ifname" down
 752                 return 0
 753         }
 754
 755         mcval=
 756         [ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 757         [ -n "$mesh_id" ] && ssid="$mesh_id"
 758
 759         iw dev "$ifname" mesh join "$ssid" freq $freq $iw_htmode \
 760                 ${mcval:+mcast-rate $mcval} \
 761                 beacon-interval $beacon_int
 762 }
 763
 764 mac80211_setup_vif() {
 765         local name="$1"
 766         local failed
 767         local action=up
 768
 769         json_select data
 770         json_get_vars ifname
 771         json_select ..
 772
 773         json_select config
 774         json_get_vars mode
 775         json_get_var vif_txpower
 776         json_get_var vif_enable enable 1
 777
 778         [ "$vif_enable" = 1 ] || action=down
 779         if [ "$mode" != "ap" ] || [ "$ifname" = "$ap_ifname" ]; then
 780                 ip link set dev "$ifname" "$action" || {
 781                         wireless_setup_vif_failed IFUP_ERROR
 782                         json_select ..
 783                         return
 784                 }
 785                 [ -z "$vif_txpower" ] || iw dev "$ifname" set txpower fixed "${vif_txpower%%.*}00"
 786         fi
 787
 788         case "$mode" in
 789                 mesh)
 790                         wireless_vif_parse_encryption
 791                         [ -z "$htmode" ] && htmode="NOHT";
 792                         freq="$(get_freq "$phy" "$channel")"
 793                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ] || chan_is_dfs "$phy" "$channel"; then
 794                                 mac80211_setup_supplicant $vif_enable || failed=1
 795                         else
 796                                 mac80211_setup_mesh $vif_enable
 797                         fi
 798                         for var in $MP_CONFIG_INT $MP_CONFIG_BOOL $MP_CONFIG_STRING; do
 799                                 json_get_var mp_val "$var"
 800                                 [ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$var" "$mp_val"
 801                         done
 802                 ;;
 803                 adhoc)
 804                         wireless_vif_parse_encryption
 805                         if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
 806                                 freq="$(get_freq "$phy" "$channel")"
 807                                 mac80211_setup_supplicant_noctl $vif_enable || failed=1
 808                         else
 809                                 mac80211_setup_adhoc $vif_enable
 810                         fi
 811                 ;;
 812                 sta)
 813                         mac80211_setup_supplicant $vif_enable || failed=1
 814                 ;;
 815         esac
 816
 817         json_select ..
 818         [ -n "$failed" ] || wireless_add_vif "$name" "$ifname"
 819 }
 820
 821 get_freq() {
 822         local phy="$1"
 823         local chan="$2"
 824         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
 825 }
 826
 827 chan_is_dfs() {
 828         local phy="$1"
 829         local chan="$2"
 830         iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep -q "MHz.*radar detection"
 831         return $!
 832 }
 833
 834 mac80211_vap_cleanup() {
 835         local service="$1"
 836         local vaps="$2"
 837
 838         for wdev in $vaps; do
 839                 [ "$service" != "none" ] && ubus call ${service} config_remove "{\"iface\":\"$wdev\"}"
 840                 ip link set dev "$wdev" down 2>/dev/null
 841                 iw dev "$wdev" del
 842         done
 843 }
 844
 845 mac80211_interface_cleanup() {
 846         local phy="$1"
 847         local primary_ap=$(uci -q -P /var/state get wireless._${phy}.aplist)
 848         primary_ap=${primary_ap%% *}
 849
 850         mac80211_vap_cleanup hostapd "${primary_ap}"
 851         mac80211_vap_cleanup wpa_supplicant "$(uci -q -P /var/state get wireless._${phy}.splist)"
 852         mac80211_vap_cleanup none "$(uci -q -P /var/state get wireless._${phy}.umlist)"
 853 }
 854
 855 mac80211_set_noscan() {
 856         hostapd_noscan=1
 857 }
 858
 859 drv_mac80211_cleanup() {
 860         hostapd_common_cleanup
 861 }
 862
 863 drv_mac80211_setup() {
 864         json_select config
 865         json_get_vars \
 866                 phy macaddr path \
 867                 country chanbw distance \
 868                 txpower antenna_gain \
 869                 rxantenna txantenna \
 870                 frag rts beacon_int:100 htmode
 871         json_get_values basic_rate_list basic_rate
 872         json_select ..
 873
 874         find_phy || {
 875                 echo "Could not find PHY for device '$1'"
 876                 wireless_set_retry 0
 877                 return 1
 878         }
 879
 880         [ -z "$(uci -q -P /var/state show wireless._${phy})" ] && {
 881                 uci -q -P /var/state set wireless._${phy}=phy
 882                 wireless_set_data phy="$phy"
 883         }
 884
 885         OLDAPLIST=$(uci -q -P /var/state get wireless._${phy}.aplist)
 886         OLDSPLIST=$(uci -q -P /var/state get wireless._${phy}.splist)
 887         OLDUMLIST=$(uci -q -P /var/state get wireless._${phy}.umlist)
 888
 889         local wdev
 890         local cwdev
 891         local found
 892
 893         for wdev in $(list_phy_interfaces "$phy"); do
 894                 found=0
 895                 for cwdev in $OLDAPLIST $OLDSPLIST $OLDUMLIST; do
 896                         if [ "$wdev" = "$cwdev" ]; then
 897                                 found=1
 898                                 break
 899                         fi
 900                 done
 901                 if [ "$found" = "0" ]; then
 902                         ip link set dev "$wdev" down
 903                         iw dev "$wdev" del
 904                 fi
 905         done
 906
 907         # convert channel to frequency
 908         [ "$auto_channel" -gt 0 ] || freq="$(get_freq "$phy" "$channel")"
 909
 910         [ -n "$country" ] && {
 911                 iw reg get | grep -q "^country $country:" || {
 912                         iw reg set "$country"
 913                         sleep 1
 914                 }
 915         }
 916
 917         hostapd_conf_file="/var/run/hostapd-$phy.conf"
 918
 919         no_ap=1
 920         macidx=0
 921         staidx=0
 922
 923         [ -n "$chanbw" ] && {
 924                 for file in /sys/kernel/debug/ieee80211/$phy/ath9k*/chanbw /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode; do
 925                         [ -f "$file" ] && echo "$chanbw" > "$file"
 926                 done
 927         }
 928
 929         set_default rxantenna 0xffffffff
 930         set_default txantenna 0xffffffff
 931         set_default distance 0
 932         set_default antenna_gain 0
 933
 934         [ "$txantenna" = "all" ] && txantenna=0xffffffff
 935         [ "$rxantenna" = "all" ] && rxantenna=0xffffffff
 936
 937         iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
 938         iw phy "$phy" set antenna_gain $antenna_gain >/dev/null 2>&1
 939         iw phy "$phy" set distance "$distance" >/dev/null 2>&1
 940
 941         if [ -n "$txpower" ]; then
 942                 iw phy "$phy" set txpower fixed "${txpower%%.*}00"
 943         else
 944                 iw phy "$phy" set txpower auto
 945         fi
 946
 947         [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
 948         [ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
 949
 950         has_ap=
 951         hostapd_ctrl=
 952         ap_ifname=
 953         hostapd_noscan=
 954         for_each_interface "ap" mac80211_check_ap
 955
 956         rm -f "$hostapd_conf_file"
 957
 958         for_each_interface "sta adhoc mesh" mac80211_set_noscan
 959         [ -n "$has_ap" ] && mac80211_hostapd_setup_base "$phy"
 960
 961         mac80211_prepare_iw_htmode
 962         for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
 963         NEWAPLIST=
 964         for_each_interface "ap" mac80211_prepare_vif
 965         NEW_MD5=$(test -e "${hostapd_conf_file}" && md5sum ${hostapd_conf_file})
 966         OLD_MD5=$(uci -q -P /var/state get wireless._${phy}.md5)
 967         if [ "${NEWAPLIST}" != "${OLDAPLIST}" ]; then
 968                 mac80211_vap_cleanup hostapd "${OLDAPLIST}"
 969         fi
 970         [ -n "${NEWAPLIST}" ] && mac80211_iw_interface_add "$phy" "${NEWAPLIST%% *}" __ap
 971         local add_ap=0
 972         local primary_ap=${NEWAPLIST%% *}
 973         [ -n "$hostapd_ctrl" ] && {
 974                 local no_reload=1
 975                 if [ -n "$(ubus list | grep hostapd.$primary_ap)" ]; then
 976                         [ "${NEW_MD5}" = "${OLD_MD5}" ] || {
 977                                 ubus call hostapd.$primary_ap reload
 978                                 no_reload=$?
 979                                 if [ "$no_reload" != "0" ]; then
 980                                         mac80211_vap_cleanup hostapd "${OLDAPLIST}"
 981                                         mac80211_vap_cleanup wpa_supplicant "$(uci -q -P /var/state get wireless._${phy}.splist)"
 982                                         mac80211_vap_cleanup none "$(uci -q -P /var/state get wireless._${phy}.umlist)"
 983                                         sleep 2
 984                                         mac80211_iw_interface_add "$phy" "${NEWAPLIST%% *}" __ap
 985                                         for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
 986                                 fi
 987                         }
 988                 fi
 989                 if [ "$no_reload" != "0" ]; then
 990                         add_ap=1
 991                         ubus wait_for hostapd
 992                         ubus call hostapd config_add "{\"iface\":\"$primary_ap\", \"config\":\"${hostapd_conf_file}\"}"
 993                         local hostapd_pid=$(ubus call service list '{"name": "hostapd"}' | jsonfilter -l 1 -e "@['hostapd'].instances['hostapd'].pid")
 994                         wireless_add_process "$hostapd_pid" "/usr/sbin/hostapd" 1
 995                 fi
 996                 ret="$?"
 997                 [ "$ret" != 0 ] && {
 998                         wireless_setup_failed HOSTAPD_START_FAILED
 999                         return
1000                 }
1001         }
1002         uci -q -P /var/state set wireless._${phy}.aplist="${NEWAPLIST}"
1003         uci -q -P /var/state set wireless._${phy}.md5="${NEW_MD5}"
1004
1005         [ "${add_ap}" = 1 ] && sleep 1
1006         for_each_interface "ap" mac80211_setup_vif
1007
1008         NEWSPLIST=
1009         NEWUMLIST=
1010
1011         for_each_interface "sta adhoc mesh monitor" mac80211_setup_vif
1012
1013         uci -q -P /var/state set wireless._${phy}.splist="${NEWSPLIST}"
1014         uci -q -P /var/state set wireless._${phy}.umlist="${NEWUMLIST}"
1015
1016         local foundvap
1017         local dropvap=""
1018         for oldvap in $OLDSPLIST; do
1019                 foundvap=0
1020                 for newvap in $NEWSPLIST; do
1021                         [ "$oldvap" = "$newvap" ] && foundvap=1
1022                 done
1023                 [ "$foundvap" = "0" ] && dropvap="$dropvap $oldvap"
1024         done
1025         [ -n "$dropvap" ] && mac80211_vap_cleanup wpa_supplicant "$dropvap"
1026         wireless_set_up
1027 }
1028
1029 _list_phy_interfaces() {
1030         local phy="$1"
1031         if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then
1032                 ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null;
1033         else
1034                 ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g'
1035         fi
1036 }
1037
1038 list_phy_interfaces() {
1039         local phy="$1"
1040
1041         for dev in $(_list_phy_interfaces "$phy"); do
1042                 readlink "/sys/class/net/${dev}/phy80211" | grep -q "/${phy}\$" || continue
1043                 echo "$dev"
1044         done
1045 }
1046
1047 drv_mac80211_teardown() {
1048         wireless_process_kill_all
1049
1050         json_select data
1051         json_get_vars phy
1052         json_select ..
1053
1054         mac80211_interface_cleanup "$phy"
1055         uci -q -P /var/state revert wireless._${phy}
1056 }
1057
1058 add_driver mac80211