package/hostapd/files/hostapd.sh

   1 hostapd_set_bss_options() {
   2         local var="$1"
   3         local vif="$2"
   4         local enc wpa_group_rekey wps_possible
   5
   6         config_get enc "$vif" encryption
   7         config_get wpa_group_rekey "$vif" wpa_group_rekey
   8         config_get_bool ap_isolate "$vif" isolate 0
   9
  10         config_get device "$vif" device
  11         config_get hwmode "$device" hwmode
  12         config_get phy "$device" phy
  13
  14         append "$var" "ctrl_interface=/var/run/hostapd-$phy" "$N"
  15
  16         if [ "$ap_isolate" -gt 0 ]; then
  17                 append "$var" "ap_isolate=$ap_isolate" "$N"
  18         fi
  19
  20         # Examples:
  21         # psk-mixed/tkip        => WPA1+2 PSK, TKIP
  22         # wpa-psk2/tkip+aes     => WPA2 PSK, CCMP+TKIP
  23         # wpa2/tkip+aes         => WPA2 RADIUS, CCMP+TKIP
  24         # ...
  25
  26         # TODO: move this parsing function somewhere generic, so that
  27         # later it can be reused by drivers that don't use hostapd
  28
  29         # crypto defaults: WPA2 vs WPA1
  30         case "$enc" in
  31                 wpa2*|*psk2*)
  32                         wpa=2
  33                         crypto="CCMP"
  34                 ;;
  35                 *mixed*)
  36                         wpa=3
  37                         crypto="CCMP TKIP"
  38                 ;;
  39                 *)
  40                         wpa=1
  41                         crypto="TKIP"
  42                 ;;
  43         esac
  44
  45         # explicit override for crypto setting
  46         case "$enc" in
  47                 *tkip+aes|*tkip+ccmp|*aes+tkip|*ccmp+tkip) crypto="CCMP TKIP";;
  48                 *aes|*ccmp) crypto="CCMP";;
  49                 *tkip) crypto="TKIP";;
  50         esac
  51
  52         # enforce CCMP for 11ng and 11na
  53         case "$hwmode:$crypto" in
  54                 *ng:TKIP|*na:TKIP) crypto="CCMP TKIP";;
  55         esac
  56
  57         # use crypto/auth settings for building the hostapd config
  58         case "$enc" in
  59                 *psk*)
  60                         config_get psk "$vif" key
  61                         if [ ${#psk} -eq 64 ]; then
  62                                 append "$var" "wpa_psk=$psk" "$N"
  63                         else
  64                                 append "$var" "wpa_passphrase=$psk" "$N"
  65                         fi
  66                         wps_possible=1
  67                 ;;
  68                 *wpa*)
  69                         # required fields? formats?
  70                         # hostapd is particular, maybe a default configuration for failures
  71                         config_get auth_server "$vif" auth_server
  72                         [ -z "$auth_server" ] && config_get auth_server "$vif" server
  73                         append "$var" "auth_server_addr=$auth_server" "$N"
  74                         config_get auth_port "$vif" auth_port
  75                         [ -z "$auth_port" ] && config_get auth_port "$vif" port
  76                         auth_port=${auth_port:-1812}
  77                         append "$var" "auth_server_port=$auth_port" "$N"
  78                         config_get auth_secret "$vif" auth_secret
  79                         [ -z "$auth_secret" ] && config_get auth_secret "$vif" key
  80                         append "$var" "auth_server_shared_secret=$auth_secret" "$N"
  81                         config_get acct_server "$vif" acct_server
  82                         [ -n "$acct_server" ] && append "$var" "acct_server_addr=$acct_server" "$N"
  83                         config_get acct_port "$vif" acct_port
  84                         [ -n "$acct_port" ] && acct_port=${acct_port:-1813}
  85                         [ -n "$acct_port" ] && append "$var" "acct_server_port=$acct_port" "$N"
  86                         config_get acct_secret "$vif" acct_secret
  87                         [ -n "$acct_secret" ] && append "$var" "acct_server_shared_secret=$acct_secret" "$N"
  88                         config_get nasid "$vif" nasid
  89                         append "$var" "nas_identifier=$nasid" "$N"
  90                         append "$var" "eapol_key_index_workaround=1" "$N"
  91                         append "$var" "radius_acct_interim_interval=300" "$N"
  92                         append "$var" "ieee8021x=1" "$N"
  93                         append "$var" "wpa_key_mgmt=WPA-EAP" "$N"
  94                         append "$var" "wpa_group_rekey=300" "$N"
  95                         append "$var" "wpa_gmk_rekey=640" "$N"
  96                 ;;
  97                 *wep*)
  98                         config_get key "$vif" key
  99                         key="${key:-1}"
 100                         case "$key" in
 101                                 [1234])
 102                                         for idx in 1 2 3 4; do
 103                                                 local zidx
 104                                                 zidx=$(($idx - 1))
 105                                                 config_get ckey "$vif" "key${idx}"
 106                                                 [ -n "$ckey" ] && \
 107                                                         append "$var" "wep_key${zidx}=$(prepare_key_wep "$ckey")" "$N"
 108                                         done
 109                                         append "$var" "wep_default_key=$((key - 1))"  "$N"
 110                                 ;;
 111                                 *)
 112                                         append "$var" "wep_key0=$(prepare_key_wep "$key")" "$N"
 113                                         append "$var" "wep_default_key=0" "$N"
 114                                 ;;
 115                         esac
 116                         case "$enc" in
 117                                 *shared*)
 118                                         auth_algs=2
 119                                 ;;
 120                                 *mixed*)
 121                                         auth_algs=3
 122                                 ;;
 123                         esac
 124                         wpa=0
 125                         crypto=
 126                 ;;
 127                 *)
 128                         wpa=0
 129                         crypto=
 130                 ;;
 131         esac
 132         append "$var" "auth_algs=${auth_algs:-1}" "$N"
 133         append "$var" "wpa=$wpa" "$N"
 134         [ -n "$crypto" ] && append "$var" "wpa_pairwise=$crypto" "$N"
 135         [ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
 136
 137         config_get ssid "$vif" ssid
 138         config_get bridge "$vif" bridge
 139         config_get ieee80211d "$vif" ieee80211d
 140         config_get iapp_interface "$vif" iapp_interface
 141
 142         config_get_bool wps_pbc "$vif" wps_pushbutton 0
 143         config_get_bool wps_label "$vif" wps_label 0
 144
 145         config_get config_methods "$vif" wps_config
 146         [ "$wps_pbc" -gt 0 ] && append config_methods push_button
 147
 148         [ -n "$wps_possible" -a -n "$config_methods" ] && {
 149                 config_get device_type "$vif" wps_device_type "6-0050F204-1"
 150                 config_get device_name "$vif" wps_device_name "OpenWrt AP"
 151                 config_get manufacturer "$vif" wps_manufacturer "openwrt.org"
 152
 153                 append "$var" "eap_server=1" "$N"
 154                 append "$var" "wps_state=2" "$N"
 155                 append "$var" "ap_setup_locked=1" "$N"
 156                 append "$var" "device_type=$device_type" "$N"
 157                 append "$var" "device_name=$device_name" "$N"
 158                 append "$var" "manufacturer=$manufacturer" "$N"
 159                 append "$var" "config_methods=$config_methods" "$N"
 160         }
 161
 162         append "$var" "ssid=$ssid" "$N"
 163         [ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N"
 164         [ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N"
 165         [ -n "$iapp_interface" ] && append "$var" iapp_interface=$(uci_get_state network "$iapp_interface" ifname "$iapp_interface") "$N"
 166
 167         if [ "$wpa" -ge "2" ]
 168         then
 169                 # RSN -> allow preauthentication
 170                 config_get rsn_preauth "$vif" rsn_preauth
 171                 if [ -n "$bridge" -a "$rsn_preauth" = 1 ]
 172                 then
 173                         append "$var" "rsn_preauth=1" "$N"
 174                         append "$var" "rsn_preauth_interfaces=$bridge" "$N"
 175                 fi
 176
 177                 # RSN -> allow management frame protection
 178                 config_get ieee80211w "$vif" ieee80211w
 179                 case "$ieee80211w" in
 180                         [012])
 181                                 append "$var" "ieee80211w=$ieee80211w" "$N"
 182                                 [ "$ieee80211w" -gt "0" ] && {
 183                                         config_get ieee80211w_max_timeout "$vif" ieee80211w_max_timeout
 184                                         config_get ieee80211w_retry_timeout "$vif" ieee80211w_retry_timeout
 185                                         [ -n "$ieee80211w_max_timeout" ] && \
 186                                                 append "$var" "assoc_sa_query_max_timeout=$ieee80211w_max_timeout" "$N"
 187                                         [ -n "$ieee80211w_retry_timeout" ] && \
 188                                                 append "$var" "assoc_sa_query_retry_timeout=$ieee80211w_retry_timeout" "$N"
 189                                 }
 190                         ;;
 191                 esac
 192         fi
 193 }
 194
 195 hostapd_setup_vif() {
 196         local vif="$1"
 197         local driver="$2"
 198         hostapd_cfg=
 199
 200         hostapd_set_bss_options hostapd_cfg "$vif"
 201         config_get ifname "$vif" ifname
 202         config_get device "$vif" device
 203         config_get channel "$device" channel
 204         config_get hwmode "$device" hwmode
 205         case "$hwmode" in
 206                 *bg|*gdt|*gst|*fh) hwmode=g;;
 207                 *adt|*ast) hwmode=a;;
 208         esac
 209         [ "$channel" = auto ] && channel=
 210         [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
 211         cat > /var/run/hostapd-$ifname.conf <<EOF
 212 driver=$driver
 213 interface=$ifname
 214 ${hwmode:+hw_mode=${hwmode#11}}
 215 ${channel:+channel=$channel}
 216 $hostapd_cfg
 217 EOF
 218         hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf
 219 }
 220