hostapd: add a build variant for wpa_supplicant and one for a multicall hostapd+suppl...
[openwrt.git] / package / hostapd / files / hostapd.sh
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 "$vif" wpa_group_rekey
8
9         # Examples:
10         # psk-mixed/tkip        => WPA1+2 PSK, TKIP
11         # wpa-psk2/tkip+aes     => WPA2 PSK, CCMP+TKIP
12         # wpa2/tkip+aes         => WPA2 RADIUS, CCMP+TKIP
13         # ...
14
15         # TODO: move this parsing function somewhere generic, so that
16         # later it can be reused by drivers that don't use hostapd
17
18         # crypto defaults: WPA2 vs WPA1
19         case "$enc" in
20                 wpa2*|*psk2*)
21                         wpa=2
22                         crypto="CCMP"
23                 ;;
24                 *mixed*)
25                         wpa=3
26                         crypto="CCMP TKIP"
27                 ;;
28                 *)
29                         wpa=1
30                         crypto="TKIP"
31                 ;;
32         esac
33
34         # explicit override for crypto setting
35         case "$enc" in
36                 *tkip+aes|*tkip+ccmp) crypto="CCMP TKIP";;
37                 *aes|*ccmp) crypto="CCMP";;
38                 *tkip) crypto="TKIP";;
39         esac
40
41         # use crypto/auth settings for building the hostapd config
42         case "$enc" in
43                 *psk*)
44                         config_get psk "$vif" key
45                         if [ ${#psk} -eq 64 ]; then
46                                 append "$var" "wpa_psk=$psk" "$N"
47                         else
48                                 append "$var" "wpa_passphrase=$psk" "$N"
49                         fi
50                 ;;
51                 *wpa*)
52                         # required fields? formats?
53                         # hostapd is particular, maybe a default configuration for failures
54                         config_get server "$vif" server
55                         append "$var" "auth_server_addr=$server" "$N"
56                         config_get port "$vif" port
57                         port=${port:-1812}
58                         append "$var" "auth_server_port=$port" "$N"
59                         config_get secret "$vif" key
60                         append "$var" "auth_server_shared_secret=$secret" "$N"
61                         config_get nasid "$vif" nasid
62                         append "$var" "nas_identifier=$nasid" "$N"
63                         append "$var" "eapol_key_index_workaround=1" "$N"
64                         append "$var" "radius_acct_interim_interval=300" "$N"
65                         append "$var" "ieee8021x=1" "$N"
66                         append "$var" "auth_algs=1" "$N"
67                         append "$var" "wpa_key_mgmt=WPA-EAP" "$N"
68                         append "$var" "wpa_group_rekey=300" "$N"
69                         append "$var" "wpa_gmk_rekey=640" "$N"
70                 ;;
71                 *)
72                         wpa=0
73                         crypto=
74                 ;;
75         esac
76         append "$var" "wpa=$wpa" "$N"
77         [ -n "$crypto" ] && append "$var" "wpa_pairwise=$crypto" "$N"
78         [ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
79
80         config_get ssid "$vif" ssid
81         config_get bridge "$vif" bridge
82         config_get ieee80211d "$vif" ieee80211d
83
84         append "$var" "ssid=$ssid" "$N"
85         [ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N"
86         [ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N"
87 }
88
89 hostapd_setup_vif() {
90         local vif="$1"
91         local driver="$2"
92         hostapd_cfg=
93
94         hostapd_set_bss_options hostapd_cfg "$vif"
95         config_get ifname "$vif" ifname
96         config_get device "$vif" device
97         config_get channel "$device" channel
98         config_get hwmode "$device" hwmode
99         case "$hwmode" in
100                 bg) hwmode=g;;
101         esac
102         [ "$channel" = auto ] && channel=
103         [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
104         cat > /var/run/hostapd-$ifname.conf <<EOF
105 ctrl_interface=/var/run/hostapd-$ifname
106 driver=$driver
107 interface=$ifname
108 ${hwmode:+hw_mode=$hwmode}
109 ${channel:+channel=$channel}
110 $hostapd_cfg
111 EOF
112         hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf
113 }
114