[backfire] merge r25543
[openwrt-10.03/.git] / package / hostapd / files / hostapd.sh
1 hostapd_set_bss_options() {
2         local var="$1"
3         local vif="$2"
4         local enc wpa_group_rekey wps_possible
5
6         config_get enc "$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 "$hwmode:$crypto" in
51                 *ng:TKIP|*na:TKIP) crypto="CCMP TKIP";;
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" "$N"
62                         fi
63                         wps_possible=1
64                 ;;
65                 *wpa*)
66                         # required fields? formats?
67                         # hostapd is particular, maybe a default configuration for failures
68                         config_get server "$vif" server
69                         append "$var" "auth_server_addr=$server" "$N"
70                         config_get port "$vif" port
71                         port=${port:-1812}
72                         append "$var" "auth_server_port=$port" "$N"
73                         config_get secret "$vif" key
74                         append "$var" "auth_server_shared_secret=$secret" "$N"
75                         config_get nasid "$vif" nasid
76                         append "$var" "nas_identifier=$nasid" "$N"
77                         append "$var" "eapol_key_index_workaround=1" "$N"
78                         append "$var" "radius_acct_interim_interval=300" "$N"
79                         append "$var" "ieee8021x=1" "$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                         case "$enc" in
104                                 *shared*)
105                                         auth_algs=2
106                                 ;;
107                                 *mixed*)
108                                         auth_algs=3
109                                 ;;
110                         esac
111                         wpa=0
112                         crypto=
113                 ;;
114                 *)
115                         wpa=0
116                         crypto=
117                 ;;
118         esac
119         append "$var" "auth_algs=${auth_algs:-1}" "$N"
120         append "$var" "wpa=$wpa" "$N"
121         [ -n "$crypto" ] && append "$var" "wpa_pairwise=$crypto" "$N"
122         [ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
123
124         config_get ssid "$vif" ssid
125         config_get bridge "$vif" bridge
126         config_get ieee80211d "$vif" ieee80211d
127         config_get iapp_interface "$vif" iapp_interface
128
129         config_get_bool wps_pbc "$vif" wps_pushbutton 0
130         [ -n "$wps_possible" -a "$wps_pbc" -gt 0 ] && {
131                 append "$var" "eap_server=1" "$N"
132                 append "$var" "wps_state=2" "$N"
133                 append "$var" "ap_setup_locked=1" "$N"
134                 append "$var" "config_methods=push_button" "$N"
135         }
136
137         append "$var" "ssid=$ssid" "$N"
138         [ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N"
139         [ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N"
140         [ -n "$iapp_interface" ] && append "$var" $(uci_get_state network "$iapp_interface" ifname "$iapp_interface") "$N"
141
142         [ "$wpa" -ge "2" ] && config_get ieee80211w "$vif" ieee80211w
143         case "$ieee80211w" in
144                 [012])
145                         append "$var" "ieee80211w=$ieee80211w" "$N"
146                         [ "$ieee80211w" -gt "0" ] && {
147                                 config_get ieee80211w_max_timeout "$vif" ieee80211w_max_timeout
148                                 config_get ieee80211w_retry_timeout "$vif" ieee80211w_retry_timeout
149                                 [ -n "$ieee80211w_max_timeout" ] && \
150                                         append "$var" "assoc_sa_query_max_timeout=$ieee80211w_max_timeout" "$N"
151                                 [ -n "$ieee80211w_retry_timeout" ] && \
152                                         append "$var" "assoc_sa_query_retry_timeout=$ieee80211w_retry_timeout" "$N"
153                         }
154                 ;;
155         esac
156 }
157
158 hostapd_setup_vif() {
159         local vif="$1"
160         local driver="$2"
161         hostapd_cfg=
162
163         hostapd_set_bss_options hostapd_cfg "$vif"
164         config_get ifname "$vif" ifname
165         config_get device "$vif" device
166         config_get channel "$device" channel
167         config_get hwmode "$device" hwmode
168         case "$hwmode" in
169                 *bg|*gdt|*gst|*fh) hwmode=g;;
170                 *adt|*ast) hwmode=a;;
171         esac
172         [ "$channel" = auto ] && channel=
173         [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
174         cat > /var/run/hostapd-$ifname.conf <<EOF
175 ctrl_interface=/var/run/hostapd-$ifname
176 driver=$driver
177 interface=$ifname
178 ${hwmode:+hw_mode=${hwmode#11}}
179 ${channel:+channel=$channel}
180 $hostapd_cfg
181 EOF
182         hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf
183 }
184