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

   1 hostapd_set_bss_options() {
   2         local var="$1"
   3         local vif="$2"
   4         local enc wep_rekey wpa_group_rekey wpa_pair_rekey wpa_master_rekey wps_possible
   5
   6         config_get enc "$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"  "$N"
  95                 ;;
  96                 *wpa*)
  97                         # required fields? formats?
  98                         # hostapd is particular, maybe a default configuration for failures
  99                         config_get auth_server "$vif" auth_server
 100                         [ -z "$auth_server" ] && config_get auth_server "$vif" server
 101                         append "$var" "auth_server_addr=$auth_server" "$N"
 102                         config_get auth_port "$vif" auth_port
 103                         [ -z "$auth_port" ] && config_get auth_port "$vif" port
 104                         auth_port=${auth_port:-1812}
 105                         append "$var" "auth_server_port=$auth_port" "$N"
 106                         config_get auth_secret "$vif" auth_secret
 107                         [ -z "$auth_secret" ] && config_get auth_secret "$vif" key
 108                         append "$var" "auth_server_shared_secret=$auth_secret" "$N"
 109                         # You don't really want to enable this unless you are doing
 110                         # some corner case testing or are using OpenWrt as a work around
 111                         # for some systematic issues.
 112                         config_get_bool auth_cache "$vif" auth_cache 0
 113                         config_get rsn_preauth "$vif" rsn_preauth
 114                         [ "$auth_cache" -gt 0 ] || [[ "$rsn_preauth" = 1 ]] || append "$var" "disable_pmksa_caching=1" "$N"
 115                         [ "$auth_cache" -gt 0 ] || [[ "$rsn_preauth" = 1 ]] || append "$var" "okc=0" "$N"
 116                         config_get acct_server "$vif" acct_server
 117                         [ -n "$acct_server" ] && append "$var" "acct_server_addr=$acct_server" "$N"
 118                         config_get acct_port "$vif" acct_port
 119                         [ -n "$acct_port" ] && acct_port=${acct_port:-1813}
 120                         [ -n "$acct_port" ] && append "$var" "acct_server_port=$acct_port" "$N"
 121                         config_get acct_secret "$vif" acct_secret
 122                         [ -n "$acct_secret" ] && append "$var" "acct_server_shared_secret=$acct_secret" "$N"
 123                         config_get eap_reauth_period "$vif" eap_reauth_period
 124                         [ -n "$eap_reauth_period" ] && append "$var" "eap_reauth_period=$eap_reauth_period" "$N"
 125                         config_get dae_client "$vif" dae_client
 126                         config_get dae_secret "$vif" dae_secret
 127                         [ -n "$dae_client" -a -n "$dae_secret" ] && {
 128                                 config_get dae_port  "$vif" dae_port
 129                                 append "$var" "radius_das_port=${dae_port:-3799}" "$N"
 130                                 append "$var" "radius_das_client=$dae_client $dae_secret" "$N"
 131                         }
 132                         config_get nasid "$vif" nasid
 133                         append "$var" "nas_identifier=$nasid" "$N"
 134                         append "$var" "eapol_key_index_workaround=1" "$N"
 135                         append "$var" "ieee8021x=1" "$N"
 136                         append "$var" "wpa_key_mgmt=WPA-EAP" "$N"
 137                         [ -n "$wpa_group_rekey"  ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
 138                         [ -n "$wpa_pair_rekey"   ] && append "$var" "wpa_ptk_rekey=$wpa_pair_rekey"    "$N"
 139                         [ -n "$wpa_master_rekey" ] && append "$var" "wpa_gmk_rekey=$wpa_master_rekey"  "$N"
 140                 ;;
 141                 *wep*)
 142                         config_get key "$vif" key
 143                         key="${key:-1}"
 144                         case "$key" in
 145                                 [1234])
 146                                         for idx in 1 2 3 4; do
 147                                                 local zidx
 148                                                 zidx=$(($idx - 1))
 149                                                 config_get ckey "$vif" "key${idx}"
 150                                                 [ -n "$ckey" ] && \
 151                                                         append "$var" "wep_key${zidx}=$(prepare_key_wep "$ckey")" "$N"
 152                                         done
 153                                         append "$var" "wep_default_key=$((key - 1))"  "$N"
 154                                 ;;
 155                                 *)
 156                                         append "$var" "wep_key0=$(prepare_key_wep "$key")" "$N"
 157                                         append "$var" "wep_default_key=0" "$N"
 158                                         [ -n "$wep_rekey" ] && append "$var" "wep_rekey_period=$wep_rekey" "$N"
 159                                 ;;
 160                         esac
 161                         case "$enc" in
 162                                 *shared*)
 163                                         auth_algs=2
 164                                 ;;
 165                                 *mixed*)
 166                                         auth_algs=3
 167                                 ;;
 168                         esac
 169                         wpa=0
 170                         crypto=
 171                 ;;
 172                 *)
 173                         wpa=0
 174                         crypto=
 175                 ;;
 176         esac
 177         append "$var" "auth_algs=${auth_algs:-1}" "$N"
 178         append "$var" "wpa=$wpa" "$N"
 179         [ -n "$crypto" ] && append "$var" "wpa_pairwise=$crypto" "$N"
 180         [ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
 181
 182         config_get ssid "$vif" ssid
 183         config_get bridge "$vif" bridge
 184         config_get ieee80211d "$vif" ieee80211d
 185         config_get iapp_interface "$vif" iapp_interface
 186
 187         config_get_bool wps_pbc "$vif" wps_pushbutton 0
 188         config_get_bool wps_label "$vif" wps_label 0
 189
 190         config_get config_methods "$vif" wps_config
 191         [ "$wps_pbc" -gt 0 ] && append config_methods push_button
 192
 193         [ -n "$wps_possible" -a -n "$config_methods" ] && {
 194                 config_get device_type "$vif" wps_device_type "6-0050F204-1"
 195                 config_get device_name "$vif" wps_device_name "OpenWrt AP"
 196                 config_get manufacturer "$vif" wps_manufacturer "openwrt.org"
 197                 config_get wps_pin "$vif" wps_pin "12345670"
 198
 199                 config_get_bool ext_registrar "$vif" ext_registrar 0
 200                 [ "$ext_registrar" -gt 0 -a -n "$bridge" ] && append "$var" "upnp_iface=$bridge" "$N"
 201
 202                 append "$var" "eap_server=1" "$N"
 203                 append "$var" "ap_pin=$wps_pin" "$N"
 204                 append "$var" "wps_state=${wps_not_configured:-2}" "$N"
 205                 append "$var" "ap_setup_locked=0" "$N"
 206                 append "$var" "device_type=$device_type" "$N"
 207                 append "$var" "device_name=$device_name" "$N"
 208                 append "$var" "manufacturer=$manufacturer" "$N"
 209                 append "$var" "config_methods=$config_methods" "$N"
 210         }
 211
 212         append "$var" "ssid=$ssid" "$N"
 213         [ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N"
 214         [ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N"
 215         [ -n "$iapp_interface" ] && append "$var" iapp_interface=$(uci_get_state network "$iapp_interface" ifname "$iapp_interface") "$N"
 216
 217         if [ "$wpa" -ge "2" ]
 218         then
 219                 # RSN -> allow preauthentication. You have two
 220                 # options, rsn_preauth for production or rsn_preauth_testing
 221                 # for validation / testing.
 222                 if [ -n "$bridge" -a "$rsn_preauth" = 1 ]
 223                 then
 224                         append "$var" "rsn_preauth=1" "$N"
 225                         append "$var" "rsn_preauth_interfaces=$bridge" "$N"
 226                         append "$var" "okc=1" "$N"
 227                 else
 228                         # RSN preauthentication testings hould disable
 229                         # Opportunistic Key Caching (okc) as otherwise the PMKSA
 230                         # entry for a test could come from the Opportunistic Key Caching
 231                         config_get rsn_preauth_testing "$vif" rsn_preauth_testing
 232                         if [ -n "$bridge" -a "$rsn_preauth_testing" = 1 ]
 233                         then
 234                                 append "$var" "rsn_preauth=1" "$N"
 235                                 append "$var" "rsn_preauth_interfaces=$bridge" "$N"
 236                                 append "$var" "okc=0" "$N"
 237                         fi
 238                 fi
 239
 240                 # RSN -> allow management frame protection
 241                 config_get ieee80211w "$vif" ieee80211w
 242                 case "$ieee80211w" in
 243                         [012])
 244                                 append "$var" "ieee80211w=$ieee80211w" "$N"
 245                                 [ "$ieee80211w" -gt "0" ] && {
 246                                         config_get ieee80211w_max_timeout "$vif" ieee80211w_max_timeout
 247                                         config_get ieee80211w_retry_timeout "$vif" ieee80211w_retry_timeout
 248                                         [ -n "$ieee80211w_max_timeout" ] && \
 249                                                 append "$var" "assoc_sa_query_max_timeout=$ieee80211w_max_timeout" "$N"
 250                                         [ -n "$ieee80211w_retry_timeout" ] && \
 251                                                 append "$var" "assoc_sa_query_retry_timeout=$ieee80211w_retry_timeout" "$N"
 252                                 }
 253                         ;;
 254                 esac
 255         fi
 256
 257         config_get macfile "$vif" macfile
 258         config_get maclist "$vif" maclist
 259         if [ -z "$macfile" ]
 260         then
 261                 # if no macfile has been specified, fallback to the default name
 262                 # and truncate file to avoid aggregating entries over time
 263                 macfile="/var/run/hostapd-$ifname.maclist"
 264                 echo "" > "$macfile"
 265         else
 266                 if [ -n "$maclist" ]
 267                 then
 268                         # to avoid to overwrite the original file, make a copy
 269                         # before appending the entries specified by the maclist
 270                         # option
 271                         cp $macfile $macfile.maclist
 272                         macfile=$macfile.maclist
 273                 fi
 274         fi
 275
 276         if [ -n "$maclist" ]
 277         then
 278                 for mac in $maclist; do
 279                         echo "$mac" >> $macfile
 280                 done
 281         fi
 282
 283         config_get macfilter "$vif" macfilter
 284         case "$macfilter" in
 285                 allow)
 286                         append "$var" "macaddr_acl=1" "$N"
 287                         append "$var" "accept_mac_file=$macfile" "$N"
 288                         ;;
 289                 deny)
 290                         append "$var" "macaddr_acl=0" "$N"
 291                         append "$var" "deny_mac_file=$macfile" "$N"
 292                         ;;
 293         esac
 294 }
 295
 296 hostapd_set_log_options() {
 297         local var="$1"
 298         local cfg="$2"
 299         local log_level log_80211 log_8021x log_radius log_wpa log_driver log_iapp log_mlme
 300
 301         config_get log_level "$cfg" log_level 2
 302
 303         config_get_bool log_80211  "$cfg" log_80211  1
 304         config_get_bool log_8021x  "$cfg" log_8021x  1
 305         config_get_bool log_radius "$cfg" log_radius 1
 306         config_get_bool log_wpa    "$cfg" log_wpa    1
 307         config_get_bool log_driver "$cfg" log_driver 1
 308         config_get_bool log_iapp   "$cfg" log_iapp   1
 309         config_get_bool log_mlme   "$cfg" log_mlme   1
 310
 311         local log_mask=$((       \
 312                 ($log_80211  << 0) | \
 313                 ($log_8021x  << 1) | \
 314                 ($log_radius << 2) | \
 315                 ($log_wpa    << 3) | \
 316                 ($log_driver << 4) | \
 317                 ($log_iapp   << 5) | \
 318                 ($log_mlme   << 6)   \
 319         ))
 320
 321         append "$var" "logger_syslog=$log_mask" "$N"
 322         append "$var" "logger_syslog_level=$log_level" "$N"
 323         append "$var" "logger_stdout=$log_mask" "$N"
 324         append "$var" "logger_stdout_level=$log_level" "$N"
 325 }
 326
 327 hostapd_setup_vif() {
 328         local vif="$1"
 329         local driver="$2"
 330         local ifname device channel hwmode
 331
 332         hostapd_cfg=
 333
 334         config_get ifname "$vif" ifname
 335         config_get device "$vif" device
 336         config_get channel "$device" channel
 337         config_get hwmode "$device" hwmode
 338
 339         hostapd_set_log_options hostapd_cfg "$device"
 340         hostapd_set_bss_options hostapd_cfg "$vif"
 341
 342         case "$hwmode" in
 343                 *bg|*gdt|*gst|*fh) hwmode=g;;
 344                 *adt|*ast) hwmode=a;;
 345         esac
 346         [ "$channel" = auto ] && channel=
 347         [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
 348         cat > /var/run/hostapd-$ifname.conf <<EOF
 349 driver=$driver
 350 interface=$ifname
 351 ${hwmode:+hw_mode=${hwmode#11}}
 352 ${channel:+channel=$channel}
 353 $hostapd_cfg
 354 EOF
 355         hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf
 356 }
 357