package/network/services/hostapd/files/hostapd.sh

   1 . /lib/functions/network.sh
   2
   3 hostapd_set_bss_options() {
   4         local var="$1"
   5         local vif="$2"
   6         local enc wep_rekey wpa_group_rekey wpa_pair_rekey wpa_master_rekey wps_possible wpa_key_mgmt
   7
   8         config_get enc "$vif" encryption "none"
   9         config_get wep_rekey        "$vif" wep_rekey        # 300
  10         config_get wpa_group_rekey  "$vif" wpa_group_rekey  # 300
  11         config_get wpa_pair_rekey   "$vif" wpa_pair_rekey   # 300
  12         config_get wpa_master_rekey "$vif" wpa_master_rekey # 640
  13         config_get_bool ap_isolate "$vif" isolate 0
  14         config_get_bool disassoc_low_ack "$vif" disassoc_low_ack 1
  15         config_get max_num_sta "$vif" max_num_sta 0
  16         config_get max_inactivity "$vif" max_inactivity 0
  17         config_get_bool preamble "$vif" short_preamble 1
  18
  19         config_get device "$vif" device
  20         config_get hwmode "$device" hwmode
  21         config_get phy "$device" phy
  22
  23         append "$var" "ctrl_interface=/var/run/hostapd-$phy" "$N"
  24
  25         if [ "$ap_isolate" -gt 0 ]; then
  26                 append "$var" "ap_isolate=$ap_isolate" "$N"
  27         fi
  28         if [ "$max_num_sta" -gt 0 ]; then
  29                 append "$var" "max_num_sta=$max_num_sta" "$N"
  30         fi
  31         if [ "$max_inactivity" -gt 0 ]; then
  32                 append "$var" "ap_max_inactivity=$max_inactivity" "$N"
  33         fi
  34         append "$var" "disassoc_low_ack=$disassoc_low_ack" "$N"
  35         if [ "$preamble" -gt 0 ]; then
  36                 append "$var" "preamble=$preamble" "$N"
  37         fi
  38
  39         # Examples:
  40         # psk-mixed/tkip        => WPA1+2 PSK, TKIP
  41         # wpa-psk2/tkip+aes     => WPA2 PSK, CCMP+TKIP
  42         # wpa2/tkip+aes         => WPA2 RADIUS, CCMP+TKIP
  43         # ...
  44
  45         # TODO: move this parsing function somewhere generic, so that
  46         # later it can be reused by drivers that don't use hostapd
  47
  48         # crypto defaults: WPA2 vs WPA1
  49         case "$enc" in
  50                 wpa2*|*psk2*)
  51                         wpa=2
  52                         crypto="CCMP"
  53                 ;;
  54                 *mixed*)
  55                         wpa=3
  56                         crypto="CCMP TKIP"
  57                 ;;
  58                 *)
  59                         wpa=1
  60                         crypto="TKIP"
  61                 ;;
  62         esac
  63
  64         # explicit override for crypto setting
  65         case "$enc" in
  66                 *tkip+aes|*tkip+ccmp|*aes+tkip|*ccmp+tkip) crypto="CCMP TKIP";;
  67                 *aes|*ccmp) crypto="CCMP";;
  68                 *tkip) crypto="TKIP";;
  69         esac
  70
  71         # enforce CCMP for 11ng and 11na
  72         case "$hwmode:$crypto" in
  73                 *ng:TKIP|*na:TKIP) crypto="CCMP TKIP";;
  74         esac
  75
  76         # use crypto/auth settings for building the hostapd config
  77         case "$enc" in
  78                 none)
  79                         wps_possible=1
  80                         wpa=0
  81                         crypto=
  82                         # Here we make the assumption that if we're in open mode
  83                         # with WPS enabled, we got to be in unconfigured state.
  84                         wps_not_configured=1
  85                 ;;
  86                 *psk*)
  87                         config_get psk "$vif" key
  88                         if [ ${#psk} -eq 64 ]; then
  89                                 append "$var" "wpa_psk=$psk" "$N"
  90                         else
  91                                 append "$var" "wpa_passphrase=$psk" "$N"
  92                         fi
  93                         wps_possible=1
  94                         [ -n "$wpa_group_rekey"  ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
  95                         [ -n "$wpa_pair_rekey"   ] && append "$var" "wpa_ptk_rekey=$wpa_pair_rekey"    "$N"
  96                         [ -n "$wpa_master_rekey" ] && append "$var" "wpa_gmk_rekey=$wpa_master_rekey"  "$N"
  97                         append wpa_key_mgmt "WPA-PSK"
  98                 ;;
  99                 *wpa*|*8021x*)
 100                         # required fields? formats?
 101                         # hostapd is particular, maybe a default configuration for failures
 102                         config_get auth_server "$vif" auth_server
 103                         [ -z "$auth_server" ] && config_get auth_server "$vif" server
 104                         append "$var" "auth_server_addr=$auth_server" "$N"
 105                         config_get auth_port "$vif" auth_port
 106                         [ -z "$auth_port" ] && config_get auth_port "$vif" port
 107                         auth_port=${auth_port:-1812}
 108                         append "$var" "auth_server_port=$auth_port" "$N"
 109                         config_get auth_secret "$vif" auth_secret
 110                         [ -z "$auth_secret" ] && config_get auth_secret "$vif" key
 111                         append "$var" "auth_server_shared_secret=$auth_secret" "$N"
 112                         # You don't really want to enable this unless you are doing
 113                         # some corner case testing or are using OpenWrt as a work around
 114                         # for some systematic issues.
 115                         config_get_bool auth_cache "$vif" auth_cache 0
 116                         config_get rsn_preauth "$vif" rsn_preauth
 117                         [ "$auth_cache" -gt 0 ] || [[ "$rsn_preauth" = 1 ]] || append "$var" "disable_pmksa_caching=1" "$N"
 118                         [ "$auth_cache" -gt 0 ] || [[ "$rsn_preauth" = 1 ]] || append "$var" "okc=0" "$N"
 119                         config_get acct_server "$vif" acct_server
 120                         [ -n "$acct_server" ] && append "$var" "acct_server_addr=$acct_server" "$N"
 121                         config_get acct_port "$vif" acct_port
 122                         [ -n "$acct_port" ] && acct_port=${acct_port:-1813}
 123                         [ -n "$acct_port" ] && append "$var" "acct_server_port=$acct_port" "$N"
 124                         config_get acct_secret "$vif" acct_secret
 125                         [ -n "$acct_secret" ] && append "$var" "acct_server_shared_secret=$acct_secret" "$N"
 126                         config_get eap_reauth_period "$vif" eap_reauth_period
 127                         [ -n "$eap_reauth_period" ] && append "$var" "eap_reauth_period=$eap_reauth_period" "$N"
 128                         config_get dae_client "$vif" dae_client
 129                         config_get dae_secret "$vif" dae_secret
 130                         [ -n "$dae_client" -a -n "$dae_secret" ] && {
 131                                 config_get dae_port  "$vif" dae_port
 132                                 append "$var" "radius_das_port=${dae_port:-3799}" "$N"
 133                                 append "$var" "radius_das_client=$dae_client $dae_secret" "$N"
 134                         }
 135                         config_get ownip "$vif" ownip
 136                         append "$var" "own_ip_addr=$ownip" "$N"
 137                         append "$var" "eapol_key_index_workaround=1" "$N"
 138                         append "$var" "ieee8021x=1" "$N"
 139                         append wpa_key_mgmt "WPA-EAP"
 140                         [ -n "$wpa_group_rekey"  ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
 141                         [ -n "$wpa_pair_rekey"   ] && append "$var" "wpa_ptk_rekey=$wpa_pair_rekey"    "$N"
 142                         [ -n "$wpa_master_rekey" ] && append "$var" "wpa_gmk_rekey=$wpa_master_rekey"  "$N"
 143                 ;;
 144                 *wep*)
 145                         config_get key "$vif" key
 146                         key="${key:-1}"
 147                         case "$key" in
 148                                 [1234])
 149                                         for idx in 1 2 3 4; do
 150                                                 local zidx
 151                                                 zidx=$(($idx - 1))
 152                                                 config_get ckey "$vif" "key${idx}"
 153                                                 [ -n "$ckey" ] && \
 154                                                         append "$var" "wep_key${zidx}=$(prepare_key_wep "$ckey")" "$N"
 155                                         done
 156                                         append "$var" "wep_default_key=$((key - 1))"  "$N"
 157                                 ;;
 158                                 *)
 159                                         append "$var" "wep_key0=$(prepare_key_wep "$key")" "$N"
 160                                         append "$var" "wep_default_key=0" "$N"
 161                                         [ -n "$wep_rekey" ] && append "$var" "wep_rekey_period=$wep_rekey" "$N"
 162                                 ;;
 163                         esac
 164                         case "$enc" in
 165                                 *shared*)
 166                                         auth_algs=2
 167                                 ;;
 168                                 *mixed*)
 169                                         auth_algs=3
 170                                 ;;
 171                         esac
 172                         wpa=0
 173                         crypto=
 174                 ;;
 175                 *)
 176                         wpa=0
 177                         crypto=
 178                 ;;
 179         esac
 180         append "$var" "auth_algs=${auth_algs:-1}" "$N"
 181         append "$var" "wpa=$wpa" "$N"
 182         [ -n "$crypto" ] && append "$var" "wpa_pairwise=$crypto" "$N"
 183         [ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
 184
 185         config_get ssid "$vif" ssid
 186         config_get bridge "$vif" bridge
 187         config_get ieee80211d "$vif" ieee80211d
 188         config_get iapp_interface "$vif" iapp_interface
 189
 190         config_get_bool wps_pbc "$vif" wps_pushbutton 0
 191         config_get_bool wps_label "$vif" wps_label 0
 192
 193         config_get config_methods "$vif" wps_config
 194         [ "$wps_pbc" -gt 0 ] && append config_methods push_button
 195
 196         [ -n "$wps_possible" -a -n "$config_methods" ] && {
 197                 config_get device_type "$vif" wps_device_type "6-0050F204-1"
 198                 config_get device_name "$vif" wps_device_name "OpenWrt AP"
 199                 config_get manufacturer "$vif" wps_manufacturer "openwrt.org"
 200                 config_get wps_pin "$vif" wps_pin
 201
 202                 config_get_bool ext_registrar "$vif" ext_registrar 0
 203                 [ "$ext_registrar" -gt 0 -a -n "$bridge" ] && append "$var" "upnp_iface=$bridge" "$N"
 204
 205                 append "$var" "eap_server=1" "$N"
 206                 [ -n "$wps_pin" ] && append "$var" "ap_pin=$wps_pin" "$N"
 207                 append "$var" "wps_state=${wps_not_configured:-2}" "$N"
 208                 append "$var" "ap_setup_locked=0" "$N"
 209                 append "$var" "device_type=$device_type" "$N"
 210                 append "$var" "device_name=$device_name" "$N"
 211                 append "$var" "manufacturer=$manufacturer" "$N"
 212                 append "$var" "config_methods=$config_methods" "$N"
 213         }
 214
 215         append "$var" "ssid=$ssid" "$N"
 216         [ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N"
 217         [ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N"
 218         [ -n "$iapp_interface" ] && {
 219                 local ifname
 220                 network_get_device ifname "$iapp_interface" || ifname = "$iapp_interface"
 221                 append bss_conf "iapp_interface=$ifname" "$N"
 222         }
 223
 224         if [ "$wpa" -ge "1" ]
 225         then
 226                 config_get nasid "$vif" nasid
 227                 [ -n "$nasid" ] && append "$var" "nas_identifier=$nasid" "$N"
 228
 229                 config_get_bool ieee80211r "$vif" ieee80211r 0
 230                 if [ "$ieee80211r" -gt 0 ]
 231                 then
 232                         config_get mobility_domain "$vif" mobility_domain "4f57"
 233                         config_get r0_key_lifetime "$vif" r0_key_lifetime "10000"
 234                         config_get r1_key_holder "$vif" r1_key_holder "00004f577274"
 235                         config_get reassociation_deadline "$vif" reassociation_deadline "1000"
 236                         config_get r0kh "$vif" r0kh
 237                         config_get r1kh "$vif" r1kh
 238                         config_get_bool pmk_r1_push "$vif" pmk_r1_push 0
 239
 240                         append "$var" "mobility_domain=$mobility_domain" "$N"
 241                         append "$var" "r0_key_lifetime=$r0_key_lifetime" "$N"
 242                         append "$var" "r1_key_holder=$r1_key_holder" "$N"
 243                         append "$var" "reassociation_deadline=$reassociation_deadline" "$N"
 244                         append "$var" "pmk_r1_push=$pmk_r1_push" "$N"
 245
 246                         for kh in $r0kh; do
 247                                 "$var" "r0kh=${kh//,/ }" "$N"
 248                         done
 249                         for kh in $r1kh; do
 250                                 "$var" "r1kh=${kh//,/ }" "$N"
 251                         done
 252
 253                         [ "$wpa_key_mgmt" != "${wpa_key_mgmt/EAP/}" ] && append wpa_key_mgmt "FT-EAP"
 254                         [ "$wpa_key_mgmt" != "${wpa_key_mgmt/PSK/}" ] && append wpa_key_mgmt "FT-PSK"
 255                 fi
 256
 257                 [ -n "wpa_key_mgmt" ] && append "$var" "wpa_key_mgmt=$wpa_key_mgmt"
 258         fi
 259
 260         if [ "$wpa" -ge "2" ]
 261         then
 262                 # RSN -> allow preauthentication. You have two
 263                 # options, rsn_preauth for production or rsn_preauth_testing
 264                 # for validation / testing.
 265                 if [ -n "$bridge" -a "$rsn_preauth" = 1 ]
 266                 then
 267                         append "$var" "rsn_preauth=1" "$N"
 268                         append "$var" "rsn_preauth_interfaces=$bridge" "$N"
 269                         append "$var" "okc=1" "$N"
 270                 else
 271                         # RSN preauthentication testings hould disable
 272                         # Opportunistic Key Caching (okc) as otherwise the PMKSA
 273                         # entry for a test could come from the Opportunistic Key Caching
 274                         config_get rsn_preauth_testing "$vif" rsn_preauth_testing
 275                         if [ -n "$bridge" -a "$rsn_preauth_testing" = 1 ]
 276                         then
 277                                 append "$var" "rsn_preauth=1" "$N"
 278                                 append "$var" "rsn_preauth_interfaces=$bridge" "$N"
 279                                 append "$var" "okc=0" "$N"
 280                         fi
 281                 fi
 282
 283                 # RSN -> allow management frame protection
 284                 config_get ieee80211w "$vif" ieee80211w
 285                 case "$ieee80211w" in
 286                         [012])
 287                                 append "$var" "ieee80211w=$ieee80211w" "$N"
 288                                 [ "$ieee80211w" -gt "0" ] && {
 289                                         config_get ieee80211w_max_timeout "$vif" ieee80211w_max_timeout
 290                                         config_get ieee80211w_retry_timeout "$vif" ieee80211w_retry_timeout
 291                                         [ -n "$ieee80211w_max_timeout" ] && \
 292                                                 append "$var" "assoc_sa_query_max_timeout=$ieee80211w_max_timeout" "$N"
 293                                         [ -n "$ieee80211w_retry_timeout" ] && \
 294                                                 append "$var" "assoc_sa_query_retry_timeout=$ieee80211w_retry_timeout" "$N"
 295                                 }
 296                         ;;
 297                 esac
 298         fi
 299
 300         config_get macfile "$vif" macfile
 301         config_get maclist "$vif" maclist
 302         if [ -z "$macfile" ]
 303         then
 304                 # if no macfile has been specified, fallback to the default name
 305                 # and truncate file to avoid aggregating entries over time
 306                 macfile="/var/run/hostapd-$ifname.maclist"
 307                 echo "" > "$macfile"
 308         else
 309                 if [ -n "$maclist" ]
 310                 then
 311                         # to avoid to overwrite the original file, make a copy
 312                         # before appending the entries specified by the maclist
 313                         # option
 314                         cp $macfile $macfile.maclist
 315                         macfile=$macfile.maclist
 316                 fi
 317         fi
 318
 319         if [ -n "$maclist" ]
 320         then
 321                 for mac in $maclist; do
 322                         echo "$mac" >> $macfile
 323                 done
 324         fi
 325
 326         config_get macfilter "$vif" macfilter
 327         case "$macfilter" in
 328                 allow)
 329                         append "$var" "macaddr_acl=1" "$N"
 330                         append "$var" "accept_mac_file=$macfile" "$N"
 331                         ;;
 332                 deny)
 333                         append "$var" "macaddr_acl=0" "$N"
 334                         append "$var" "deny_mac_file=$macfile" "$N"
 335                         ;;
 336         esac
 337 }
 338
 339 hostapd_set_log_options() {
 340         local var="$1"
 341         local cfg="$2"
 342         local log_level log_80211 log_8021x log_radius log_wpa log_driver log_iapp log_mlme
 343
 344         config_get log_level "$cfg" log_level 2
 345
 346         config_get_bool log_80211  "$cfg" log_80211  1
 347         config_get_bool log_8021x  "$cfg" log_8021x  1
 348         config_get_bool log_radius "$cfg" log_radius 1
 349         config_get_bool log_wpa    "$cfg" log_wpa    1
 350         config_get_bool log_driver "$cfg" log_driver 1
 351         config_get_bool log_iapp   "$cfg" log_iapp   1
 352         config_get_bool log_mlme   "$cfg" log_mlme   1
 353
 354         local log_mask=$((       \
 355                 ($log_80211  << 0) | \
 356                 ($log_8021x  << 1) | \
 357                 ($log_radius << 2) | \
 358                 ($log_wpa    << 3) | \
 359                 ($log_driver << 4) | \
 360                 ($log_iapp   << 5) | \
 361                 ($log_mlme   << 6)   \
 362         ))
 363
 364         append "$var" "logger_syslog=$log_mask" "$N"
 365         append "$var" "logger_syslog_level=$log_level" "$N"
 366         append "$var" "logger_stdout=$log_mask" "$N"
 367         append "$var" "logger_stdout_level=$log_level" "$N"
 368 }
 369
 370 hostapd_setup_vif() {
 371         local vif="$1"
 372         local driver="$2"
 373         local ifname device channel hwmode
 374
 375         hostapd_cfg=
 376
 377         config_get ifname "$vif" ifname
 378         config_get device "$vif" device
 379         config_get channel "$device" channel
 380         config_get hwmode "$device" hwmode
 381
 382         hostapd_set_log_options hostapd_cfg "$device"
 383         hostapd_set_bss_options hostapd_cfg "$vif"
 384
 385         case "$hwmode" in
 386                 *bg|*gdt|*gst|*fh) hwmode=g;;
 387                 *adt|*ast) hwmode=a;;
 388         esac
 389         [ "$channel" = auto ] && channel=
 390         [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
 391         cat > /var/run/hostapd-$ifname.conf <<EOF
 392 driver=$driver
 393 interface=$ifname
 394 ${hwmode:+hw_mode=${hwmode#11}}
 395 ${channel:+channel=$channel}
 396 $hostapd_cfg
 397 EOF
 398         hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf
 399 }