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

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