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