package/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 "$vif" isolate 0
  12
  13         config_get device "$vif" device
  14         config_get hwmode "$device" hwmode
  15         config_get phy "$device" phy
  16
  17         append "$var" "ctrl_interface=/var/run/hostapd-$phy" "$N"
  18
  19         if [ "$ap_isolate" -gt 0 ]; then
  20                 append "$var" "ap_isolate=$ap_isolate" "$N"
  21         fi
  22
  23         # Examples:
  24         # psk-mixed/tkip        => WPA1+2 PSK, TKIP
  25         # wpa-psk2/tkip+aes     => WPA2 PSK, CCMP+TKIP
  26         # wpa2/tkip+aes         => WPA2 RADIUS, CCMP+TKIP
  27         # ...
  28
  29         # TODO: move this parsing function somewhere generic, so that
  30         # later it can be reused by drivers that don't use hostapd
  31
  32         # crypto defaults: WPA2 vs WPA1
  33         case "$enc" in
  34                 wpa2*|*psk2*)
  35                         wpa=2
  36                         crypto="CCMP"
  37                 ;;
  38                 *mixed*)
  39                         wpa=3
  40                         crypto="CCMP TKIP"
  41                 ;;
  42                 *)
  43                         wpa=1
  44                         crypto="TKIP"
  45                 ;;
  46         esac
  47
  48         # explicit override for crypto setting
  49         case "$enc" in
  50                 *tkip+aes|*tkip+ccmp|*aes+tkip|*ccmp+tkip) crypto="CCMP TKIP";;
  51                 *aes|*ccmp) crypto="CCMP";;
  52                 *tkip) crypto="TKIP";;
  53         esac
  54
  55         # enforce CCMP for 11ng and 11na
  56         case "$hwmode:$crypto" in
  57                 *ng:TKIP|*na:TKIP) crypto="CCMP TKIP";;
  58         esac
  59
  60         # use crypto/auth settings for building the hostapd config
  61         case "$enc" in
  62                 *psk*)
  63                         config_get psk "$vif" key
  64                         if [ ${#psk} -eq 64 ]; then
  65                                 append "$var" "wpa_psk=$psk" "$N"
  66                         else
  67                                 append "$var" "wpa_passphrase=$psk" "$N"
  68                         fi
  69                         wps_possible=1
  70                         [ -n "$wpa_group_rekey"  ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
  71                         [ -n "$wpa_pair_rekey"   ] && append "$var" "wpa_ptk_rekey=$wpa_pair_rekey"    "$N"
  72                         [ -n "$wpa_master_rekey" ] && append "$var" "wpa_gmk_rekey=$wpa_master_rekey"  "$N"
  73                 ;;
  74                 *wpa*)
  75                         # required fields? formats?
  76                         # hostapd is particular, maybe a default configuration for failures
  77                         config_get auth_server "$vif" auth_server
  78                         [ -z "$auth_server" ] && config_get auth_server "$vif" server
  79                         append "$var" "auth_server_addr=$auth_server" "$N"
  80                         config_get auth_port "$vif" auth_port
  81                         [ -z "$auth_port" ] && config_get auth_port "$vif" port
  82                         auth_port=${auth_port:-1812}
  83                         append "$var" "auth_server_port=$auth_port" "$N"
  84                         config_get auth_secret "$vif" auth_secret
  85                         [ -z "$auth_secret" ] && config_get auth_secret "$vif" key
  86                         append "$var" "auth_server_shared_secret=$auth_secret" "$N"
  87                         config_get_bool auth_cache "$vif" auth_cache 0
  88                         [ "$auth_cache" -gt 0 ] || append "$var" "disable_pmksa_caching=1" "$N"
  89                         [ "$auth_cache" -gt 0 ] || append "$var" "okc=0" "$N"
  90                         config_get acct_server "$vif" acct_server
  91                         [ -n "$acct_server" ] && append "$var" "acct_server_addr=$acct_server" "$N"
  92                         config_get acct_port "$vif" acct_port
  93                         [ -n "$acct_port" ] && acct_port=${acct_port:-1813}
  94                         [ -n "$acct_port" ] && append "$var" "acct_server_port=$acct_port" "$N"
  95                         config_get acct_secret "$vif" acct_secret
  96                         [ -n "$acct_secret" ] && append "$var" "acct_server_shared_secret=$acct_secret" "$N"
  97                         config_get nasid "$vif" nasid
  98                         append "$var" "nas_identifier=$nasid" "$N"
  99                         append "$var" "eapol_key_index_workaround=1" "$N"
 100                         append "$var" "ieee8021x=1" "$N"
 101                         append "$var" "wpa_key_mgmt=WPA-EAP" "$N"
 102                         [ -n "$wpa_group_rekey"  ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
 103                         [ -n "$wpa_pair_rekey"   ] && append "$var" "wpa_ptk_rekey=$wpa_pair_rekey"    "$N"
 104                         [ -n "$wpa_master_rekey" ] && append "$var" "wpa_gmk_rekey=$wpa_master_rekey"  "$N"
 105                 ;;
 106                 *wep*)
 107                         config_get key "$vif" key
 108                         key="${key:-1}"
 109                         case "$key" in
 110                                 [1234])
 111                                         for idx in 1 2 3 4; do
 112                                                 local zidx
 113                                                 zidx=$(($idx - 1))
 114                                                 config_get ckey "$vif" "key${idx}"
 115                                                 [ -n "$ckey" ] && \
 116                                                         append "$var" "wep_key${zidx}=$(prepare_key_wep "$ckey")" "$N"
 117                                         done
 118                                         append "$var" "wep_default_key=$((key - 1))"  "$N"
 119                                 ;;
 120                                 *)
 121                                         append "$var" "wep_key0=$(prepare_key_wep "$key")" "$N"
 122                                         append "$var" "wep_default_key=0" "$N"
 123                                         [ -n "$wep_rekey" ] && append "$var" "wep_rekey_period=$wep_rekey" "$N"
 124                                 ;;
 125                         esac
 126                         case "$enc" in
 127                                 *shared*)
 128                                         auth_algs=2
 129                                 ;;
 130                                 *mixed*)
 131                                         auth_algs=3
 132                                 ;;
 133                         esac
 134                         wpa=0
 135                         crypto=
 136                 ;;
 137                 *)
 138                         wpa=0
 139                         crypto=
 140                 ;;
 141         esac
 142         append "$var" "auth_algs=${auth_algs:-1}" "$N"
 143         append "$var" "wpa=$wpa" "$N"
 144         [ -n "$crypto" ] && append "$var" "wpa_pairwise=$crypto" "$N"
 145         [ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
 146
 147         config_get ssid "$vif" ssid
 148         config_get bridge "$vif" bridge
 149         config_get ieee80211d "$vif" ieee80211d
 150         config_get iapp_interface "$vif" iapp_interface
 151
 152         config_get_bool wps_pbc "$vif" wps_pushbutton 0
 153         config_get_bool wps_label "$vif" wps_label 0
 154
 155         config_get config_methods "$vif" wps_config
 156         [ "$wps_pbc" -gt 0 ] && append config_methods push_button
 157
 158         [ -n "$wps_possible" -a -n "$config_methods" ] && {
 159                 config_get device_type "$vif" wps_device_type "6-0050F204-1"
 160                 config_get device_name "$vif" wps_device_name "OpenWrt AP"
 161                 config_get manufacturer "$vif" wps_manufacturer "openwrt.org"
 162
 163                 append "$var" "eap_server=1" "$N"
 164                 append "$var" "wps_state=2" "$N"
 165                 append "$var" "ap_setup_locked=1" "$N"
 166                 append "$var" "device_type=$device_type" "$N"
 167                 append "$var" "device_name=$device_name" "$N"
 168                 append "$var" "manufacturer=$manufacturer" "$N"
 169                 append "$var" "config_methods=$config_methods" "$N"
 170         }
 171
 172         append "$var" "ssid=$ssid" "$N"
 173         [ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N"
 174         [ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N"
 175         [ -n "$iapp_interface" ] && append "$var" iapp_interface=$(uci_get_state network "$iapp_interface" ifname "$iapp_interface") "$N"
 176
 177         if [ "$wpa" -ge "2" ]
 178         then
 179                 # RSN -> allow preauthentication
 180                 config_get_bool rsn_preauth "$vif" rsn_preauth "$auth_cache"
 181                 if [ -n "$bridge" -a "$rsn_preauth" = 1 ]
 182                 then
 183                         append "$var" "rsn_preauth=1" "$N"
 184                         append "$var" "rsn_preauth_interfaces=$bridge" "$N"
 185                 fi
 186
 187                 # RSN -> allow management frame protection
 188                 config_get ieee80211w "$vif" ieee80211w
 189                 case "$ieee80211w" in
 190                         [012])
 191                                 append "$var" "ieee80211w=$ieee80211w" "$N"
 192                                 [ "$ieee80211w" -gt "0" ] && {
 193                                         config_get ieee80211w_max_timeout "$vif" ieee80211w_max_timeout
 194                                         config_get ieee80211w_retry_timeout "$vif" ieee80211w_retry_timeout
 195                                         [ -n "$ieee80211w_max_timeout" ] && \
 196                                                 append "$var" "assoc_sa_query_max_timeout=$ieee80211w_max_timeout" "$N"
 197                                         [ -n "$ieee80211w_retry_timeout" ] && \
 198                                                 append "$var" "assoc_sa_query_retry_timeout=$ieee80211w_retry_timeout" "$N"
 199                                 }
 200                         ;;
 201                 esac
 202         fi
 203 }
 204
 205 hostapd_set_log_options() {
 206         local var="$1"
 207         local cfg="$2"
 208         local log_level log_80211 log_8021x log_radius log_wpa log_driver log_iapp log_mlme
 209
 210         config_get log_level "$cfg" log_level 2
 211
 212         config_get_bool log_80211  "$cfg" log_80211  1
 213         config_get_bool log_8021x  "$cfg" log_8021x  1
 214         config_get_bool log_radius "$cfg" log_radius 1
 215         config_get_bool log_wpa    "$cfg" log_wpa    1
 216         config_get_bool log_driver "$cfg" log_driver 1
 217         config_get_bool log_iapp   "$cfg" log_iapp   1
 218         config_get_bool log_mlme   "$cfg" log_mlme   1
 219
 220         local log_mask=$((       \
 221                 ($log_80211  << 0) | \
 222                 ($log_8021x  << 1) | \
 223                 ($log_radius << 2) | \
 224                 ($log_wpa    << 3) | \
 225                 ($log_driver << 4) | \
 226                 ($log_iapp   << 5) | \
 227                 ($log_mlme   << 6)   \
 228         ))
 229
 230         append "$var" "logger_syslog=$log_mask" "$N"
 231         append "$var" "logger_syslog_level=$log_level" "$N"
 232         append "$var" "logger_stdout=$log_mask" "$N"
 233         append "$var" "logger_stdout_level=$log_level" "$N"
 234 }
 235
 236 hostapd_setup_vif() {
 237         local vif="$1"
 238         local driver="$2"
 239         local ifname device channel hwmode
 240
 241         hostapd_cfg=
 242
 243         config_get ifname "$vif" ifname
 244         config_get device "$vif" device
 245         config_get channel "$device" channel
 246         config_get hwmode "$device" hwmode
 247
 248         hostapd_set_log_options hostapd_cfg "$device"
 249         hostapd_set_bss_options hostapd_cfg "$vif"
 250
 251         case "$hwmode" in
 252                 *bg|*gdt|*gst|*fh) hwmode=g;;
 253                 *adt|*ast) hwmode=a;;
 254         esac
 255         [ "$channel" = auto ] && channel=
 256         [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
 257         cat > /var/run/hostapd-$ifname.conf <<EOF
 258 driver=$driver
 259 interface=$ifname
 260 ${hwmode:+hw_mode=${hwmode#11}}
 261 ${channel:+channel=$channel}
 262 $hostapd_cfg
 263 EOF
 264         hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf
 265 }
 266