| 1 | hostapd_set_bss_options() { |
| 2 | local var="$1" |
| 3 | local vif="$2" |
| 4 | local enc wpa_group_rekey |
| 5 | |
| 6 | config_get enc "$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 | |
| 13 | if [ "$ap_isolate" -gt 0 ]; then |
| 14 | append "$var" "ap_isolate=$ap_isolate" "$N" |
| 15 | fi |
| 16 | |
| 17 | # Examples: |
| 18 | # psk-mixed/tkip => WPA1+2 PSK, TKIP |
| 19 | # wpa-psk2/tkip+aes => WPA2 PSK, CCMP+TKIP |
| 20 | # wpa2/tkip+aes => WPA2 RADIUS, CCMP+TKIP |
| 21 | # ... |
| 22 | |
| 23 | # TODO: move this parsing function somewhere generic, so that |
| 24 | # later it can be reused by drivers that don't use hostapd |
| 25 | |
| 26 | # crypto defaults: WPA2 vs WPA1 |
| 27 | case "$enc" in |
| 28 | wpa2*|*psk2*) |
| 29 | wpa=2 |
| 30 | crypto="CCMP" |
| 31 | ;; |
| 32 | *mixed*) |
| 33 | wpa=3 |
| 34 | crypto="CCMP TKIP" |
| 35 | ;; |
| 36 | *) |
| 37 | wpa=1 |
| 38 | crypto="TKIP" |
| 39 | ;; |
| 40 | esac |
| 41 | |
| 42 | # explicit override for crypto setting |
| 43 | case "$enc" in |
| 44 | *tkip+aes|*tkip+ccmp|*aes+tkip|*ccmp+tkip) crypto="CCMP TKIP";; |
| 45 | *aes|*ccmp) crypto="CCMP";; |
| 46 | *tkip) crypto="TKIP";; |
| 47 | esac |
| 48 | |
| 49 | # enforce CCMP for 11ng and 11na |
| 50 | case "$hwmode" in |
| 51 | *ng|*na) crypto="CCMP";; |
| 52 | esac |
| 53 | |
| 54 | # use crypto/auth settings for building the hostapd config |
| 55 | case "$enc" in |
| 56 | *psk*) |
| 57 | config_get psk "$vif" key |
| 58 | if [ ${#psk} -eq 64 ]; then |
| 59 | append "$var" "wpa_psk=$psk" "$N" |
| 60 | else |
| 61 | append "$var" "wpa_passphrase=$psk" "$N" |
| 62 | fi |
| 63 | ;; |
| 64 | *wpa*) |
| 65 | # required fields? formats? |
| 66 | # hostapd is particular, maybe a default configuration for failures |
| 67 | config_get server "$vif" server |
| 68 | append "$var" "auth_server_addr=$server" "$N" |
| 69 | config_get port "$vif" port |
| 70 | port=${port:-1812} |
| 71 | append "$var" "auth_server_port=$port" "$N" |
| 72 | config_get secret "$vif" key |
| 73 | append "$var" "auth_server_shared_secret=$secret" "$N" |
| 74 | config_get nasid "$vif" nasid |
| 75 | append "$var" "nas_identifier=$nasid" "$N" |
| 76 | append "$var" "eapol_key_index_workaround=1" "$N" |
| 77 | append "$var" "radius_acct_interim_interval=300" "$N" |
| 78 | append "$var" "ieee8021x=1" "$N" |
| 79 | append "$var" "auth_algs=1" "$N" |
| 80 | append "$var" "wpa_key_mgmt=WPA-EAP" "$N" |
| 81 | append "$var" "wpa_group_rekey=300" "$N" |
| 82 | append "$var" "wpa_gmk_rekey=640" "$N" |
| 83 | ;; |
| 84 | *wep*) |
| 85 | config_get key "$vif" key |
| 86 | key="${key:-1}" |
| 87 | case "$key" in |
| 88 | [1234]) |
| 89 | for idx in 1 2 3 4; do |
| 90 | local zidx |
| 91 | zidx=$(($idx - 1)) |
| 92 | config_get ckey "$vif" "key${idx}" |
| 93 | [ -n "$ckey" ] && \ |
| 94 | append "$var" "wep_key${zidx}=$(prepare_key_wep "$ckey")" "$N" |
| 95 | done |
| 96 | append "$var" "wep_default_key=$((key - 1))" "$N" |
| 97 | ;; |
| 98 | *) |
| 99 | append "$var" "wep_key0=$(prepare_key_wep "$key")" "$N" |
| 100 | append "$var" "wep_default_key=0" "$N" |
| 101 | ;; |
| 102 | esac |
| 103 | wpa=0 |
| 104 | crypto= |
| 105 | ;; |
| 106 | *) |
| 107 | wpa=0 |
| 108 | crypto= |
| 109 | ;; |
| 110 | esac |
| 111 | append "$var" "wpa=$wpa" "$N" |
| 112 | [ -n "$crypto" ] && append "$var" "wpa_pairwise=$crypto" "$N" |
| 113 | [ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N" |
| 114 | |
| 115 | config_get ssid "$vif" ssid |
| 116 | config_get bridge "$vif" bridge |
| 117 | config_get ieee80211d "$vif" ieee80211d |
| 118 | |
| 119 | append "$var" "ssid=$ssid" "$N" |
| 120 | [ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N" |
| 121 | [ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N" |
| 122 | |
| 123 | [ "$wpa" -ge "2" ] && config_get ieee80211w "$vif" ieee80211w |
| 124 | case "$ieee80211w" in |
| 125 | [012]) |
| 126 | append "$var" "ieee80211w=$ieee80211w" "$N" |
| 127 | [ "$ieee80211w" -gt "0" ] && { |
| 128 | config_get ieee80211w_max_timeout "$vif" ieee80211w_max_timeout |
| 129 | config_get ieee80211w_retry_timeout "$vif" ieee80211w_retry_timeout |
| 130 | [ -n "$ieee80211w_max_timeout" ] && \ |
| 131 | append "$var" "assoc_sa_query_max_timeout=$ieee80211w_max_timeout" "$N" |
| 132 | [ -n "$ieee80211w_retry_timeout" ] && \ |
| 133 | append "$var" "assoc_sa_query_retry_timeout=$ieee80211w_retry_timeout" "$N" |
| 134 | } |
| 135 | ;; |
| 136 | esac |
| 137 | } |
| 138 | |
| 139 | hostapd_setup_vif() { |
| 140 | local vif="$1" |
| 141 | local driver="$2" |
| 142 | hostapd_cfg= |
| 143 | |
| 144 | hostapd_set_bss_options hostapd_cfg "$vif" |
| 145 | config_get ifname "$vif" ifname |
| 146 | config_get device "$vif" device |
| 147 | config_get channel "$device" channel |
| 148 | config_get hwmode "$device" hwmode |
| 149 | case "$hwmode" in |
| 150 | *bg|*gdt|*gst|*fh) hwmode=g;; |
| 151 | *adt|*ast) hwmode=a;; |
| 152 | esac |
| 153 | [ "$channel" = auto ] && channel= |
| 154 | [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device" |
| 155 | cat > /var/run/hostapd-$ifname.conf <<EOF |
| 156 | ctrl_interface=/var/run/hostapd-$ifname |
| 157 | driver=$driver |
| 158 | interface=$ifname |
| 159 | ${hwmode:+hw_mode=${hwmode#11}} |
| 160 | ${channel:+channel=$channel} |
| 161 | $hostapd_cfg |
| 162 | EOF |
| 163 | hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf |
| 164 | } |
| 165 | |
| 166 | |
