Root/package/hostap-driver/files/lib/wifi/hostap.sh

1#!/bin/sh
2append DRIVERS "prism2"
3
4scan_prism2() {
5    local device="$1"
6    local mainvif
7    local wds
8    
9    config_get vifs "$device" vifs
10    local _c=0
11    for vif in $vifs; do
12        config_get mode "$vif" mode
13        case "$mode" in
14            adhoc|sta|ap|monitor)
15                # Only one vif is allowed on AP, station, Ad-hoc or monitor mode
16                [ -z "$mainvif" ] && {
17                    mainvif="$vif"
18                    config_set "$vif" ifname "$device"
19                }
20            ;;
21            wds)
22                config_get ssid "$vif" ssid
23                [ -z "$ssid" ] && continue
24                config_set "$vif" ifname "${device}wds${_c}"
25                _c=$(($_c + 1))
26                addr="$ssid"
27                ${addr:+append wds "$vif"}
28            ;;
29            *) echo "$device($vif): Invalid mode, ignored."; continue;;
30        esac
31    done
32    config_set "$device" vifs "${mainvif:+$mainvif }${wds:+$wds}"
33}
34
35disable_prism2() (
36    local device="$1"
37    
38    set_wifi_down "$device"
39
40    include /lib/network
41    while read line < /proc/net/hostap/${device}/wds; do
42        set $line
43        [ -f "/var/run/wifi-${1}.pid" ] &&
44            kill "$(cat "/var/run/wifi-${1}.pid")"
45        ifconfig "$1" down
46        unbridge "$1"
47        iwpriv "$device" wds_del "$2"
48    done
49    unbridge "$device"
50    return 0
51)
52
53enable_prism2() {
54    local device="$1"
55
56    config_get rxantenna "$device" rxantenna
57    config_get txantenna "$device" txantenna
58    config_get_bool diversity "$device" diversity
59    [ -n "$diversity" ] && {
60        rxantenna="1"
61        txantenna="1"
62    }
63    [ -n "$rxantenna" ] && iwpriv $device antsel_rx "$rxantenna"
64    [ -n "$txantenna" ] && iwpriv $device antsel_tx "$txantenna"
65
66    config_get channel "$device" channel
67    [ -n "$channel" ] && iwconfig "$device" channel "$channel" >/dev/null 2>/dev/null
68
69    config_get txpower "$device" txpower
70    [ -n "$txpower" ] && iwconfig "$device" txpower "${txpower%%.*}"
71
72    config_get vifs "$device" vifs
73    local first=1
74    for vif in $vifs; do
75        config_get ifname "$vif" ifname
76        config_get ssid "$vif" ssid
77        config_get mode "$vif" mode
78
79        [ "$mode" = "wds" ] || iwconfig "$device" essid -- "$ssid"
80
81        case "$mode" in
82            sta)
83                iwconfig "$device" mode managed
84                config_get addr "$device" bssid
85                [ -z "$addr" ] || {
86                    iwconfig "$device" ap "$addr"
87                }
88            ;;
89            ap) iwconfig "$device" mode master;;
90            wds) iwpriv "$device" wds_add "$ssid";;
91            *) iwconfig "$device" mode "$mode";;
92        esac
93
94        [ "$first" = 1 ] && {
95            config_get rate "$vif" rate
96            [ -n "$rate" ] && iwconfig "$device" rate "${rate%%.*}"
97
98            config_get_bool hidden "$vif" hidden 0
99            iwpriv "$device" enh_sec "$hidden"
100
101            config_get frag "$vif" frag
102            [ -n "$frag" ] && iwconfig "$device" frag "${frag%%.*}"
103
104            config_get rts "$vif" rts
105            [ -n "$rts" ] && iwconfig "$device" rts "${rts%%.*}"
106
107            config_get maclist "$vif" maclist
108            [ -n "$maclist" ] && {
109                # flush MAC list
110                iwpriv "$device" maccmd 3
111                for mac in $maclist; do
112                    iwpriv "$device" addmac "$mac"
113                done
114            }
115            config_get macpolicy "$vif" macpolicy
116            case "$macpolicy" in
117                allow)
118                    iwpriv $device maccmd 2
119                ;;
120                deny)
121                    iwpriv $device maccmd 1
122                ;;
123                *)
124                    # default deny policy if mac list exists
125                    [ -n "$maclist" ] && iwpriv $device maccmd 1
126                ;;
127            esac
128            # kick all stations if we have policy explicitly set
129            [ -n "$macpolicy" ] && iwpriv $device maccmd 4
130        }
131
132        config_get enc "$vif" encryption
133        case "$enc" in
134            WEP|wep)
135                for idx in 1 2 3 4; do
136                    config_get key "$vif" "key${idx}"
137                    iwconfig "$ifname" enc "[$idx]" "${key:-off}"
138                done
139                config_get key "$vif" key
140                key="${key:-1}"
141                case "$key" in
142                    [1234]) iwconfig "$ifname" enc "[$key]";;
143                    *) iwconfig "$ifname" enc "$key";;
144                esac
145            ;;
146            psk*|wpa*)
147                start_hostapd=1
148                config_get key "$vif" key
149            ;;
150        esac
151
152        local net_cfg bridge
153        net_cfg="$(find_net_config "$vif")"
154        [ -z "$net_cfg" ] || {
155            bridge="$(bridge_interface "$net_cfg")"
156            config_set "$vif" bridge "$bridge"
157            start_net "$ifname" "$net_cfg"
158        }
159        set_wifi_up "$vif" "$ifname"
160
161        case "$mode" in
162            ap)
163                if [ -n "$start_hostapd" ] && eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
164                    hostapd_setup_vif "$vif" hostap || {
165                        echo "enable_prism2($device): Failed to set up hostapd for interface $ifname" >&2
166                        # make sure this wifi interface won't accidentally stay open without encryption
167                        ifconfig "$ifname" down
168                        continue
169                    }
170                fi
171            ;;
172            wds|sta)
173                if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
174                    wpa_supplicant_setup_vif "$vif" hostap || {
175                        echo "enable_prism2($device): Failed to set up wpa_supplicant for interface $ifname" >&2
176                        ifconfig "$ifname" down
177                        continue
178                    }
179                fi
180            ;;
181        esac
182        first=0
183    done
184
185}
186
187detect_prism2() {
188    cd /proc/net/hostap
189    [ -d wlan* ] || return
190    for dev in $(ls -d wlan* 2>&-); do
191        config_get type "$dev" type
192        [ "$type" = prism2 ] && continue
193        cat <<EOF
194
195config wifi-device $dev
196    option type prism2
197    option channel 6
198
199    # REMOVE THIS LINE TO ENABLE WIFI:
200    option disabled 1
201
202config wifi-iface
203    option device $dev
204    option network lan
205    option mode ap
206    option ssid OpenWrt
207    option encryption none
208EOF
209    done
210}
211

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