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
  16         config_get device "$vif" device
  17         config_get hwmode "$device" hwmode
  18         config_get phy "$device" phy
  19
  20         append "$var" "ctrl_interface=/var/run/hostapd-$phy" "$N"
  21
  22         if [ "$ap_isolate" -gt 0 ]; then
  23                 append "$var" "ap_isolate=$ap_isolate" "$N"
  24         fi
  25         if [ "$max_num_sta" -gt 0 ]; then
  26                 append "$var" "max_num_sta=$max_num_sta" "$N"
  27         fi
  28         if [ "$max_inactivity" -gt 0 ]; then
  29                 append "$var" "ap_max_inactivity=$max_inactivity" "$N"
  30         fi
  31         append "$var" "disassoc_low_ack=$disassoc_low_ack" "$N"
  32
  33         # Examples:
  34         # psk-mixed/tkip        => WPA1+2 PSK, TKIP
  35         # wpa-psk2/tkip+aes     => WPA2 PSK, CCMP+TKIP
  36         # wpa2/tkip+aes         => WPA2 RADIUS, CCMP+TKIP
  37         # ...
  38
  39         # TODO: move this parsing function somewhere generic, so that
  40         # later it can be reused by drivers that don't use hostapd
  41
  42         # crypto defaults: WPA2 vs WPA1
  43         case "$enc" in
  44                 wpa2*|*psk2*)
  45                         wpa=2
  46                         crypto="CCMP"
  47                 ;;
  48                 *mixed*)
  49                         wpa=3
  50                         crypto="CCMP TKIP"
  51                 ;;
  52                 *)
  53                         wpa=1
  54                         crypto="TKIP"
  55                 ;;
  56         esac
  57
  58         # explicit override for crypto setting
  59         case "$enc" in
  60                 *tkip+aes|*tkip+ccmp|*aes+tkip|*ccmp+tkip) crypto="CCMP TKIP";;
  61                 *aes|*ccmp) crypto="CCMP";;
  62                 *tkip) crypto="TKIP";;
  63         esac
  64
  65         # enforce CCMP for 11ng and 11na
  66         case "$hwmode:$crypto" in
  67                 *ng:TKIP|*na:TKIP) crypto="CCMP TKIP";;
  68         esac
  69
  70         # use crypto/auth settings for building the hostapd config
  71         case "$enc" in
  72                 *psk*)
  73                         config_get psk "$vif" key
  74                         if [ ${#psk} -eq 64 ]; then
  75                                 append "$var" "wpa_psk=$psk" "$N"
  76                         else
  77                                 append "$var" "wpa_passphrase=$psk" "$N"
  78                         fi
  79                         wps_possible=1
  80                         [ -n "$wpa_group_rekey"  ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
  81                         [ -n "$wpa_pair_rekey"   ] && append "$var" "wpa_ptk_rekey=$wpa_pair_rekey"    "$N"
  82                         [ -n "$wpa_master_rekey" ] && append "$var" "wpa_gmk_rekey=$wpa_master_rekey"  "$N"
  83                 ;;
  84                 *wpa*)
  85                         # required fields? formats?
  86                         # hostapd is particular, maybe a default configuration for failures
  87                         config_get auth_server "$vif" auth_server
  88                         [ -z "$auth_server" ] && config_get auth_server "$vif" server
  89                         append "$var" "auth_server_addr=$auth_server" "$N"
  90                         config_get auth_port "$vif" auth_port
  91                         [ -z "$auth_port" ] && config_get auth_port "$vif" port
  92                         auth_port=${auth_port:-1812}
  93                         append "$var" "auth_server_port=$auth_port" "$N"
  94                         config_get auth_secret "$vif" auth_secret
  95                         [ -z "$auth_secret" ] && config_get auth_secret "$vif" key
  96                         append "$var" "auth_server_shared_secret=$auth_secret" "$N"
  97                         config_get_bool auth_cache "$vif" auth_cache 0
  98                         [ "$auth_cache" -gt 0 ] || append "$var" "disable_pmksa_caching=1" "$N"
  99                         [ "$auth_cache" -gt 0 ] || append "$var" "okc=0" "$N"
 100                         config_get acct_server "$vif" acct_server
 101                         [ -n "$acct_server" ] && append "$var" "acct_server_addr=$acct_server" "$N"
 102                         config_get acct_port "$vif" acct_port
 103                         [ -n "$acct_port" ] && acct_port=${acct_port:-1813}
 104                         [ -n "$acct_port" ] && append "$var" "acct_server_port=$acct_port" "$N"
 105                         config_get acct_secret "$vif" acct_secret
 106                         [ -n "$acct_secret" ] && append "$var" "acct_server_shared_secret=$acct_secret" "$N"
 107                         config_get nasid "$vif" nasid
 108                         append "$var" "nas_identifier=$nasid" "$N"
 109                         append "$var" "eapol_key_index_workaround=1" "$N"
 110                         append "$var" "ieee8021x=1" "$N"
 111                         append "$var" "wpa_key_mgmt=WPA-EAP" "$N"
 112                         [ -n "$wpa_group_rekey"  ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
 113                         [ -n "$wpa_pair_rekey"   ] && append "$var" "wpa_ptk_rekey=$wpa_pair_rekey"    "$N"
 114                         [ -n "$wpa_master_rekey" ] && append "$var" "wpa_gmk_rekey=$wpa_master_rekey"  "$N"
 115                 ;;
 116                 *wep*)
 117                         config_get key "$vif" key
 118                         key="${key:-1}"
 119                         case "$key" in
 120                                 [1234])
 121                                         for idx in 1 2 3 4; do
 122                                                 local zidx
 123                                                 zidx=$(($idx - 1))
 124                                                 config_get ckey "$vif" "key${idx}"
 125                                                 [ -n "$ckey" ] && \
 126                                                         append "$var" "wep_key${zidx}=$(prepare_key_wep "$ckey")" "$N"
 127                                         done
 128                                         append "$var" "wep_default_key=$((key - 1))"  "$N"
 129                                 ;;
 130                                 *)
 131                                         append "$var" "wep_key0=$(prepare_key_wep "$key")" "$N"
 132                                         append "$var" "wep_default_key=0" "$N"
 133                                         [ -n "$wep_rekey" ] && append "$var" "wep_rekey_period=$wep_rekey" "$N"
 134                                 ;;
 135                         esac
 136                         case "$enc" in
 137                                 *shared*)
 138                                         auth_algs=2
 139                                 ;;
 140                                 *mixed*)
 141                                         auth_algs=3
 142                                 ;;
 143                         esac
 144                         wpa=0
 145                         crypto=
 146                 ;;
 147                 *)
 148                         wpa=0
 149                         crypto=
 150                 ;;
 151         esac
 152         append "$var" "auth_algs=${auth_algs:-1}" "$N"
 153         append "$var" "wpa=$wpa" "$N"
 154         [ -n "$crypto" ] && append "$var" "wpa_pairwise=$crypto" "$N"
 155         [ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
 156
 157         config_get ssid "$vif" ssid
 158         config_get bridge "$vif" bridge
 159         config_get ieee80211d "$vif" ieee80211d
 160         config_get iapp_interface "$vif" iapp_interface
 161
 162         config_get_bool wps_pbc "$vif" wps_pushbutton 0
 163         config_get_bool wps_label "$vif" wps_label 0
 164
 165         config_get config_methods "$vif" wps_config
 166         [ "$wps_pbc" -gt 0 ] && append config_methods push_button
 167
 168         [ -n "$wps_possible" -a -n "$config_methods" ] && {
 169                 config_get device_type "$vif" wps_device_type "6-0050F204-1"
 170                 config_get device_name "$vif" wps_device_name "OpenWrt AP"
 171                 config_get manufacturer "$vif" wps_manufacturer "openwrt.org"
 172
 173                 append "$var" "eap_server=1" "$N"
 174                 append "$var" "wps_state=2" "$N"
 175                 append "$var" "ap_setup_locked=1" "$N"
 176                 append "$var" "device_type=$device_type" "$N"
 177                 append "$var" "device_name=$device_name" "$N"
 178                 append "$var" "manufacturer=$manufacturer" "$N"
 179                 append "$var" "config_methods=$config_methods" "$N"
 180         }
 181
 182         append "$var" "ssid=$ssid" "$N"
 183         [ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N"
 184         [ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N"
 185         [ -n "$iapp_interface" ] && append "$var" iapp_interface=$(uci_get_state network "$iapp_interface" ifname "$iapp_interface") "$N"
 186
 187         if [ "$wpa" -ge "2" ]
 188         then
 189                 # RSN -> allow preauthentication
 190                 config_get_bool rsn_preauth "$vif" rsn_preauth "$auth_cache"
 191                 if [ -n "$bridge" -a "$rsn_preauth" = 1 ]
 192                 then
 193                         append "$var" "rsn_preauth=1" "$N"
 194                         append "$var" "rsn_preauth_interfaces=$bridge" "$N"
 195                 fi
 196
 197                 # RSN -> allow management frame protection
 198                 config_get ieee80211w "$vif" ieee80211w
 199                 case "$ieee80211w" in
 200                         [012])
 201                                 append "$var" "ieee80211w=$ieee80211w" "$N"
 202                                 [ "$ieee80211w" -gt "0" ] && {
 203                                         config_get ieee80211w_max_timeout "$vif" ieee80211w_max_timeout
 204                                         config_get ieee80211w_retry_timeout "$vif" ieee80211w_retry_timeout
 205                                         [ -n "$ieee80211w_max_timeout" ] && \
 206                                                 append "$var" "assoc_sa_query_max_timeout=$ieee80211w_max_timeout" "$N"
 207                                         [ -n "$ieee80211w_retry_timeout" ] && \
 208                                                 append "$var" "assoc_sa_query_retry_timeout=$ieee80211w_retry_timeout" "$N"
 209                                 }
 210                         ;;
 211                 esac
 212         fi
 213 }
 214
 215 hostapd_set_log_options() {
 216         local var="$1"
 217         local cfg="$2"
 218         local log_level log_80211 log_8021x log_radius log_wpa log_driver log_iapp log_mlme
 219
 220         config_get log_level "$cfg" log_level 2
 221
 222         config_get_bool log_80211  "$cfg" log_80211  1
 223         config_get_bool log_8021x  "$cfg" log_8021x  1
 224         config_get_bool log_radius "$cfg" log_radius 1
 225         config_get_bool log_wpa    "$cfg" log_wpa    1
 226         config_get_bool log_driver "$cfg" log_driver 1
 227         config_get_bool log_iapp   "$cfg" log_iapp   1
 228         config_get_bool log_mlme   "$cfg" log_mlme   1
 229
 230         local log_mask=$((       \
 231                 ($log_80211  << 0) | \
 232                 ($log_8021x  << 1) | \
 233                 ($log_radius << 2) | \
 234                 ($log_wpa    << 3) | \
 235                 ($log_driver << 4) | \
 236                 ($log_iapp   << 5) | \
 237                 ($log_mlme   << 6)   \
 238         ))
 239
 240         append "$var" "logger_syslog=$log_mask" "$N"
 241         append "$var" "logger_syslog_level=$log_level" "$N"
 242         append "$var" "logger_stdout=$log_mask" "$N"
 243         append "$var" "logger_stdout_level=$log_level" "$N"
 244 }
 245
 246 hostapd_setup_vif() {
 247         local vif="$1"
 248         local driver="$2"
 249         local ifname device channel hwmode
 250
 251         hostapd_cfg=
 252
 253         config_get ifname "$vif" ifname
 254         config_get device "$vif" device
 255         config_get channel "$device" channel
 256         config_get hwmode "$device" hwmode
 257
 258         hostapd_set_log_options hostapd_cfg "$device"
 259         hostapd_set_bss_options hostapd_cfg "$vif"
 260
 261         case "$hwmode" in
 262                 *bg|*gdt|*gst|*fh) hwmode=g;;
 263                 *adt|*ast) hwmode=a;;
 264         esac
 265         [ "$channel" = auto ] && channel=
 266         [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
 267         cat > /var/run/hostapd-$ifname.conf <<EOF
 268 driver=$driver
 269 interface=$ifname
 270 ${hwmode:+hw_mode=${hwmode#11}}
 271 ${channel:+channel=$channel}
 272 $hostapd_cfg
 273 EOF
 274         hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf
 275 }
 276