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
   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 "$enc" in
  76                 *psk*)
  77                         config_get psk "$vif" key
  78                         if [ ${#psk} -eq 64 ]; then
  79                                 append "$var" "wpa_psk=$psk" "$N"
  80                         else
  81                                 append "$var" "wpa_passphrase=$psk" "$N"
  82                         fi
  83                         wps_possible=1
  84                         [ -n "$wpa_group_rekey"  ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
  85                         [ -n "$wpa_pair_rekey"   ] && append "$var" "wpa_ptk_rekey=$wpa_pair_rekey"    "$N"
  86                         [ -n "$wpa_master_rekey" ] && append "$var" "wpa_gmk_rekey=$wpa_master_rekey"  "$N"
  87                 ;;
  88                 *wpa*)
  89                         # required fields? formats?
  90                         # hostapd is particular, maybe a default configuration for failures
  91                         config_get auth_server "$vif" auth_server
  92                         [ -z "$auth_server" ] && config_get auth_server "$vif" server
  93                         append "$var" "auth_server_addr=$auth_server" "$N"
  94                         config_get auth_port "$vif" auth_port
  95                         [ -z "$auth_port" ] && config_get auth_port "$vif" port
  96                         auth_port=${auth_port:-1812}
  97                         append "$var" "auth_server_port=$auth_port" "$N"
  98                         config_get auth_secret "$vif" auth_secret
  99                         [ -z "$auth_secret" ] && config_get auth_secret "$vif" key
 100                         append "$var" "auth_server_shared_secret=$auth_secret" "$N"
 101                         config_get_bool auth_cache "$vif" auth_cache 0
 102                         [ "$auth_cache" -gt 0 ] || append "$var" "disable_pmksa_caching=1" "$N"
 103                         [ "$auth_cache" -gt 0 ] || append "$var" "okc=0" "$N"
 104                         config_get acct_server "$vif" acct_server
 105                         [ -n "$acct_server" ] && append "$var" "acct_server_addr=$acct_server" "$N"
 106                         config_get acct_port "$vif" acct_port
 107                         [ -n "$acct_port" ] && acct_port=${acct_port:-1813}
 108                         [ -n "$acct_port" ] && append "$var" "acct_server_port=$acct_port" "$N"
 109                         config_get acct_secret "$vif" acct_secret
 110                         [ -n "$acct_secret" ] && append "$var" "acct_server_shared_secret=$acct_secret" "$N"
 111                         config_get dae_client "$vif" dae_client
 112                         config_get dae_secret "$vif" dae_secret
 113                         [ -n "$dae_client" -a -n "$dae_secret" ] && {
 114                                 config_get dae_port  "$vif" dae_port
 115                                 append "$var" "radius_das_port=${dae_port:-3799}" "$N"
 116                                 append "$var" "radius_das_client=$dae_client $dae_secret" "$N"
 117                         }
 118                         config_get nasid "$vif" nasid
 119                         append "$var" "nas_identifier=$nasid" "$N"
 120                         append "$var" "eapol_key_index_workaround=1" "$N"
 121                         append "$var" "ieee8021x=1" "$N"
 122                         append "$var" "wpa_key_mgmt=WPA-EAP" "$N"
 123                         [ -n "$wpa_group_rekey"  ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
 124                         [ -n "$wpa_pair_rekey"   ] && append "$var" "wpa_ptk_rekey=$wpa_pair_rekey"    "$N"
 125                         [ -n "$wpa_master_rekey" ] && append "$var" "wpa_gmk_rekey=$wpa_master_rekey"  "$N"
 126                 ;;
 127                 *wep*)
 128                         config_get key "$vif" key
 129                         key="${key:-1}"
 130                         case "$key" in
 131                                 [1234])
 132                                         for idx in 1 2 3 4; do
 133                                                 local zidx
 134                                                 zidx=$(($idx - 1))
 135                                                 config_get ckey "$vif" "key${idx}"
 136                                                 [ -n "$ckey" ] && \
 137                                                         append "$var" "wep_key${zidx}=$(prepare_key_wep "$ckey")" "$N"
 138                                         done
 139                                         append "$var" "wep_default_key=$((key - 1))"  "$N"
 140                                 ;;
 141                                 *)
 142                                         append "$var" "wep_key0=$(prepare_key_wep "$key")" "$N"
 143                                         append "$var" "wep_default_key=0" "$N"
 144                                         [ -n "$wep_rekey" ] && append "$var" "wep_rekey_period=$wep_rekey" "$N"
 145                                 ;;
 146                         esac
 147                         case "$enc" in
 148                                 *shared*)
 149                                         auth_algs=2
 150                                 ;;
 151                                 *mixed*)
 152                                         auth_algs=3
 153                                 ;;
 154                         esac
 155                         wpa=0
 156                         crypto=
 157                 ;;
 158                 *)
 159                         wpa=0
 160                         crypto=
 161                 ;;
 162         esac
 163         append "$var" "auth_algs=${auth_algs:-1}" "$N"
 164         append "$var" "wpa=$wpa" "$N"
 165         [ -n "$crypto" ] && append "$var" "wpa_pairwise=$crypto" "$N"
 166         [ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
 167
 168         config_get ssid "$vif" ssid
 169         config_get bridge "$vif" bridge
 170         config_get ieee80211d "$vif" ieee80211d
 171         config_get iapp_interface "$vif" iapp_interface
 172
 173         config_get_bool wps_pbc "$vif" wps_pushbutton 0
 174         config_get_bool wps_label "$vif" wps_label 0
 175
 176         config_get config_methods "$vif" wps_config
 177         [ "$wps_pbc" -gt 0 ] && append config_methods push_button
 178
 179         [ -n "$wps_possible" -a -n "$config_methods" ] && {
 180                 config_get device_type "$vif" wps_device_type "6-0050F204-1"
 181                 config_get device_name "$vif" wps_device_name "OpenWrt AP"
 182                 config_get manufacturer "$vif" wps_manufacturer "openwrt.org"
 183
 184                 append "$var" "eap_server=1" "$N"
 185                 append "$var" "wps_state=2" "$N"
 186                 append "$var" "ap_setup_locked=1" "$N"
 187                 append "$var" "device_type=$device_type" "$N"
 188                 append "$var" "device_name=$device_name" "$N"
 189                 append "$var" "manufacturer=$manufacturer" "$N"
 190                 append "$var" "config_methods=$config_methods" "$N"
 191         }
 192
 193         append "$var" "ssid=$ssid" "$N"
 194         [ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N"
 195         [ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N"
 196         [ -n "$iapp_interface" ] && append "$var" iapp_interface=$(uci_get_state network "$iapp_interface" ifname "$iapp_interface") "$N"
 197
 198         if [ "$wpa" -ge "2" ]
 199         then
 200                 # RSN -> allow preauthentication
 201                 config_get_bool rsn_preauth "$vif" rsn_preauth "$auth_cache"
 202                 if [ -n "$bridge" -a "$rsn_preauth" = 1 ]
 203                 then
 204                         append "$var" "rsn_preauth=1" "$N"
 205                         append "$var" "rsn_preauth_interfaces=$bridge" "$N"
 206                 fi
 207
 208                 # RSN -> allow management frame protection
 209                 config_get ieee80211w "$vif" ieee80211w
 210                 case "$ieee80211w" in
 211                         [012])
 212                                 append "$var" "ieee80211w=$ieee80211w" "$N"
 213                                 [ "$ieee80211w" -gt "0" ] && {
 214                                         config_get ieee80211w_max_timeout "$vif" ieee80211w_max_timeout
 215                                         config_get ieee80211w_retry_timeout "$vif" ieee80211w_retry_timeout
 216                                         [ -n "$ieee80211w_max_timeout" ] && \
 217                                                 append "$var" "assoc_sa_query_max_timeout=$ieee80211w_max_timeout" "$N"
 218                                         [ -n "$ieee80211w_retry_timeout" ] && \
 219                                                 append "$var" "assoc_sa_query_retry_timeout=$ieee80211w_retry_timeout" "$N"
 220                                 }
 221                         ;;
 222                 esac
 223         fi
 224
 225         config_get macfile "$vif" macfile
 226         config_get maclist "$vif" maclist
 227         if [ -z "$macfile" ]
 228         then
 229                 # if no macfile has been specified, fallback to the default name
 230                 # and truncate file to avoid aggregating entries over time
 231                 macfile="/var/run/hostapd-$ifname.maclist"
 232                 echo "" > "$macfile"
 233         else
 234                 if [ -n "$maclist" ]
 235                 then
 236                         # to avoid to overwrite the original file, make a copy
 237                         # before appending the entries specified by the maclist
 238                         # option
 239                         cp $macfile $macfile.maclist
 240                         macfile=$macfile.maclist
 241                 fi
 242         fi
 243
 244         if [ -n "$maclist" ]
 245         then
 246                 for mac in $maclist; do
 247                         echo "$mac" >> $macfile
 248                 done
 249         fi
 250
 251         config_get macfilter "$vif" macfilter
 252         case "$macfilter" in
 253                 allow)
 254                         append "$var" "macaddr_acl=1" "$N"
 255                         append "$var" "accept_mac_file=$macfile" "$N"
 256                         ;;
 257                 deny)
 258                         append "$var" "macaddr_acl=0" "$N"
 259                         append "$var" "deny_mac_file=$macfile" "$N"
 260                         ;;
 261         esac
 262 }
 263
 264 hostapd_set_log_options() {
 265         local var="$1"
 266         local cfg="$2"
 267         local log_level log_80211 log_8021x log_radius log_wpa log_driver log_iapp log_mlme
 268
 269         config_get log_level "$cfg" log_level 2
 270
 271         config_get_bool log_80211  "$cfg" log_80211  1
 272         config_get_bool log_8021x  "$cfg" log_8021x  1
 273         config_get_bool log_radius "$cfg" log_radius 1
 274         config_get_bool log_wpa    "$cfg" log_wpa    1
 275         config_get_bool log_driver "$cfg" log_driver 1
 276         config_get_bool log_iapp   "$cfg" log_iapp   1
 277         config_get_bool log_mlme   "$cfg" log_mlme   1
 278
 279         local log_mask=$((       \
 280                 ($log_80211  << 0) | \
 281                 ($log_8021x  << 1) | \
 282                 ($log_radius << 2) | \
 283                 ($log_wpa    << 3) | \
 284                 ($log_driver << 4) | \
 285                 ($log_iapp   << 5) | \
 286                 ($log_mlme   << 6)   \
 287         ))
 288
 289         append "$var" "logger_syslog=$log_mask" "$N"
 290         append "$var" "logger_syslog_level=$log_level" "$N"
 291         append "$var" "logger_stdout=$log_mask" "$N"
 292         append "$var" "logger_stdout_level=$log_level" "$N"
 293 }
 294
 295 hostapd_setup_vif() {
 296         local vif="$1"
 297         local driver="$2"
 298         local ifname device channel hwmode
 299
 300         hostapd_cfg=
 301
 302         config_get ifname "$vif" ifname
 303         config_get device "$vif" device
 304         config_get channel "$device" channel
 305         config_get hwmode "$device" hwmode
 306
 307         hostapd_set_log_options hostapd_cfg "$device"
 308         hostapd_set_bss_options hostapd_cfg "$vif"
 309
 310         case "$hwmode" in
 311                 *bg|*gdt|*gst|*fh) hwmode=g;;
 312                 *adt|*ast) hwmode=a;;
 313         esac
 314         [ "$channel" = auto ] && channel=
 315         [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
 316         cat > /var/run/hostapd-$ifname.conf <<EOF
 317 driver=$driver
 318 interface=$ifname
 319 ${hwmode:+hw_mode=${hwmode#11}}
 320 ${channel:+channel=$channel}
 321 $hostapd_cfg
 322 EOF
 323         hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf
 324 }
 325