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 "$vif" isolate 0
  12         config_get_bool disassoc_low_ack "$vif" disassoc_low_ack 1
  13
  14         config_get device "$vif" device
  15         config_get hwmode "$device" hwmode
  16         config_get phy "$device" phy
  17
  18         append "$var" "ctrl_interface=/var/run/hostapd-$phy" "$N"
  19
  20         if [ "$ap_isolate" -gt 0 ]; then
  21                 append "$var" "ap_isolate=$ap_isolate" "$N"
  22         fi
  23         append "$var" "disassoc_low_ack=$disassoc_low_ack" "$N"
  24
  25         # Examples:
  26         # psk-mixed/tkip        => WPA1+2 PSK, TKIP
  27         # wpa-psk2/tkip+aes     => WPA2 PSK, CCMP+TKIP
  28         # wpa2/tkip+aes         => WPA2 RADIUS, CCMP+TKIP
  29         # ...
  30
  31         # TODO: move this parsing function somewhere generic, so that
  32         # later it can be reused by drivers that don't use hostapd
  33
  34         # crypto defaults: WPA2 vs WPA1
  35         case "$enc" in
  36                 wpa2*|*psk2*)
  37                         wpa=2
  38                         crypto="CCMP"
  39                 ;;
  40                 *mixed*)
  41                         wpa=3
  42                         crypto="CCMP TKIP"
  43                 ;;
  44                 *)
  45                         wpa=1
  46                         crypto="TKIP"
  47                 ;;
  48         esac
  49
  50         # explicit override for crypto setting
  51         case "$enc" in
  52                 *tkip+aes|*tkip+ccmp|*aes+tkip|*ccmp+tkip) crypto="CCMP TKIP";;
  53                 *aes|*ccmp) crypto="CCMP";;
  54                 *tkip) crypto="TKIP";;
  55         esac
  56
  57         # enforce CCMP for 11ng and 11na
  58         case "$hwmode:$crypto" in
  59                 *ng:TKIP|*na:TKIP) crypto="CCMP TKIP";;
  60         esac
  61
  62         # use crypto/auth settings for building the hostapd config
  63         case "$enc" in
  64                 *psk*)
  65                         config_get psk "$vif" key
  66                         if [ ${#psk} -eq 64 ]; then
  67                                 append "$var" "wpa_psk=$psk" "$N"
  68                         else
  69                                 append "$var" "wpa_passphrase=$psk" "$N"
  70                         fi
  71                         wps_possible=1
  72                         [ -n "$wpa_group_rekey"  ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
  73                         [ -n "$wpa_pair_rekey"   ] && append "$var" "wpa_ptk_rekey=$wpa_pair_rekey"    "$N"
  74                         [ -n "$wpa_master_rekey" ] && append "$var" "wpa_gmk_rekey=$wpa_master_rekey"  "$N"
  75                 ;;
  76                 *wpa*)
  77                         # required fields? formats?
  78                         # hostapd is particular, maybe a default configuration for failures
  79                         config_get auth_server "$vif" auth_server
  80                         [ -z "$auth_server" ] && config_get auth_server "$vif" server
  81                         append "$var" "auth_server_addr=$auth_server" "$N"
  82                         config_get auth_port "$vif" auth_port
  83                         [ -z "$auth_port" ] && config_get auth_port "$vif" port
  84                         auth_port=${auth_port:-1812}
  85                         append "$var" "auth_server_port=$auth_port" "$N"
  86                         config_get auth_secret "$vif" auth_secret
  87                         [ -z "$auth_secret" ] && config_get auth_secret "$vif" key
  88                         append "$var" "auth_server_shared_secret=$auth_secret" "$N"
  89                         config_get_bool auth_cache "$vif" auth_cache 0
  90                         [ "$auth_cache" -gt 0 ] || append "$var" "disable_pmksa_caching=1" "$N"
  91                         [ "$auth_cache" -gt 0 ] || append "$var" "okc=0" "$N"
  92                         config_get acct_server "$vif" acct_server
  93                         [ -n "$acct_server" ] && append "$var" "acct_server_addr=$acct_server" "$N"
  94                         config_get acct_port "$vif" acct_port
  95                         [ -n "$acct_port" ] && acct_port=${acct_port:-1813}
  96                         [ -n "$acct_port" ] && append "$var" "acct_server_port=$acct_port" "$N"
  97                         config_get acct_secret "$vif" acct_secret
  98                         [ -n "$acct_secret" ] && append "$var" "acct_server_shared_secret=$acct_secret" "$N"
  99                         config_get nasid "$vif" nasid
 100                         append "$var" "nas_identifier=$nasid" "$N"
 101                         append "$var" "eapol_key_index_workaround=1" "$N"
 102                         append "$var" "ieee8021x=1" "$N"
 103                         append "$var" "wpa_key_mgmt=WPA-EAP" "$N"
 104                         [ -n "$wpa_group_rekey"  ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
 105                         [ -n "$wpa_pair_rekey"   ] && append "$var" "wpa_ptk_rekey=$wpa_pair_rekey"    "$N"
 106                         [ -n "$wpa_master_rekey" ] && append "$var" "wpa_gmk_rekey=$wpa_master_rekey"  "$N"
 107                 ;;
 108                 *wep*)
 109                         config_get key "$vif" key
 110                         key="${key:-1}"
 111                         case "$key" in
 112                                 [1234])
 113                                         for idx in 1 2 3 4; do
 114                                                 local zidx
 115                                                 zidx=$(($idx - 1))
 116                                                 config_get ckey "$vif" "key${idx}"
 117                                                 [ -n "$ckey" ] && \
 118                                                         append "$var" "wep_key${zidx}=$(prepare_key_wep "$ckey")" "$N"
 119                                         done
 120                                         append "$var" "wep_default_key=$((key - 1))"  "$N"
 121                                 ;;
 122                                 *)
 123                                         append "$var" "wep_key0=$(prepare_key_wep "$key")" "$N"
 124                                         append "$var" "wep_default_key=0" "$N"
 125                                         [ -n "$wep_rekey" ] && append "$var" "wep_rekey_period=$wep_rekey" "$N"
 126                                 ;;
 127                         esac
 128                         case "$enc" in
 129                                 *shared*)
 130                                         auth_algs=2
 131                                 ;;
 132                                 *mixed*)
 133                                         auth_algs=3
 134                                 ;;
 135                         esac
 136                         wpa=0
 137                         crypto=
 138                 ;;
 139                 *)
 140                         wpa=0
 141                         crypto=
 142                 ;;
 143         esac
 144         append "$var" "auth_algs=${auth_algs:-1}" "$N"
 145         append "$var" "wpa=$wpa" "$N"
 146         [ -n "$crypto" ] && append "$var" "wpa_pairwise=$crypto" "$N"
 147         [ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
 148
 149         config_get ssid "$vif" ssid
 150         config_get bridge "$vif" bridge
 151         config_get ieee80211d "$vif" ieee80211d
 152         config_get iapp_interface "$vif" iapp_interface
 153
 154         config_get_bool wps_pbc "$vif" wps_pushbutton 0
 155         config_get_bool wps_label "$vif" wps_label 0
 156
 157         config_get config_methods "$vif" wps_config
 158         [ "$wps_pbc" -gt 0 ] && append config_methods push_button
 159
 160         [ -n "$wps_possible" -a -n "$config_methods" ] && {
 161                 config_get device_type "$vif" wps_device_type "6-0050F204-1"
 162                 config_get device_name "$vif" wps_device_name "OpenWrt AP"
 163                 config_get manufacturer "$vif" wps_manufacturer "openwrt.org"
 164
 165                 append "$var" "eap_server=1" "$N"
 166                 append "$var" "wps_state=2" "$N"
 167                 append "$var" "ap_setup_locked=1" "$N"
 168                 append "$var" "device_type=$device_type" "$N"
 169                 append "$var" "device_name=$device_name" "$N"
 170                 append "$var" "manufacturer=$manufacturer" "$N"
 171                 append "$var" "config_methods=$config_methods" "$N"
 172         }
 173
 174         append "$var" "ssid=$ssid" "$N"
 175         [ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N"
 176         [ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N"
 177         [ -n "$iapp_interface" ] && append "$var" iapp_interface=$(uci_get_state network "$iapp_interface" ifname "$iapp_interface") "$N"
 178
 179         if [ "$wpa" -ge "2" ]
 180         then
 181                 # RSN -> allow preauthentication
 182                 config_get_bool rsn_preauth "$vif" rsn_preauth "$auth_cache"
 183                 if [ -n "$bridge" -a "$rsn_preauth" = 1 ]
 184                 then
 185                         append "$var" "rsn_preauth=1" "$N"
 186                         append "$var" "rsn_preauth_interfaces=$bridge" "$N"
 187                 fi
 188
 189                 # RSN -> allow management frame protection
 190                 config_get ieee80211w "$vif" ieee80211w
 191                 case "$ieee80211w" in
 192                         [012])
 193                                 append "$var" "ieee80211w=$ieee80211w" "$N"
 194                                 [ "$ieee80211w" -gt "0" ] && {
 195                                         config_get ieee80211w_max_timeout "$vif" ieee80211w_max_timeout
 196                                         config_get ieee80211w_retry_timeout "$vif" ieee80211w_retry_timeout
 197                                         [ -n "$ieee80211w_max_timeout" ] && \
 198                                                 append "$var" "assoc_sa_query_max_timeout=$ieee80211w_max_timeout" "$N"
 199                                         [ -n "$ieee80211w_retry_timeout" ] && \
 200                                                 append "$var" "assoc_sa_query_retry_timeout=$ieee80211w_retry_timeout" "$N"
 201                                 }
 202                         ;;
 203                 esac
 204         fi
 205 }
 206
 207 hostapd_set_log_options() {
 208         local var="$1"
 209         local cfg="$2"
 210         local log_level log_80211 log_8021x log_radius log_wpa log_driver log_iapp log_mlme
 211
 212         config_get log_level "$cfg" log_level 2
 213
 214         config_get_bool log_80211  "$cfg" log_80211  1
 215         config_get_bool log_8021x  "$cfg" log_8021x  1
 216         config_get_bool log_radius "$cfg" log_radius 1
 217         config_get_bool log_wpa    "$cfg" log_wpa    1
 218         config_get_bool log_driver "$cfg" log_driver 1
 219         config_get_bool log_iapp   "$cfg" log_iapp   1
 220         config_get_bool log_mlme   "$cfg" log_mlme   1
 221
 222         local log_mask=$((       \
 223                 ($log_80211  << 0) | \
 224                 ($log_8021x  << 1) | \
 225                 ($log_radius << 2) | \
 226                 ($log_wpa    << 3) | \
 227                 ($log_driver << 4) | \
 228                 ($log_iapp   << 5) | \
 229                 ($log_mlme   << 6)   \
 230         ))
 231
 232         append "$var" "logger_syslog=$log_mask" "$N"
 233         append "$var" "logger_syslog_level=$log_level" "$N"
 234         append "$var" "logger_stdout=$log_mask" "$N"
 235         append "$var" "logger_stdout_level=$log_level" "$N"
 236 }
 237
 238 hostapd_setup_vif() {
 239         local vif="$1"
 240         local driver="$2"
 241         local ifname device channel hwmode
 242
 243         hostapd_cfg=
 244
 245         config_get ifname "$vif" ifname
 246         config_get device "$vif" device
 247         config_get channel "$device" channel
 248         config_get hwmode "$device" hwmode
 249
 250         hostapd_set_log_options hostapd_cfg "$device"
 251         hostapd_set_bss_options hostapd_cfg "$vif"
 252
 253         case "$hwmode" in
 254                 *bg|*gdt|*gst|*fh) hwmode=g;;
 255                 *adt|*ast) hwmode=a;;
 256         esac
 257         [ "$channel" = auto ] && channel=
 258         [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
 259         cat > /var/run/hostapd-$ifname.conf <<EOF
 260 driver=$driver
 261 interface=$ifname
 262 ${hwmode:+hw_mode=${hwmode#11}}
 263 ${channel:+channel=$channel}
 264 $hostapd_cfg
 265 EOF
 266         hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf
 267 }
 268