[package] base-files: properly handle wifi ifaces with no network attached, useful...

[openwrt.git] / package / base-files / files / sbin / wifi

diff --git a/package/base-files/files/sbin/wifi b/package/base-files/files/sbin/wifi
index 7c77c0b..5cbf50b 100755 (executable)
--- a/package/base-files/files/sbin/wifi
+++ b/package/base-files/files/sbin/wifi
@@ -3,6 +3,14 @@
 
 . /etc/functions.sh
 
+usage() {
+       cat <<EOF
+Usage: $0 [down|detect]
+enables (default), disables or detects a wifi configuration.
+EOF
+       exit 1
+}
+
 find_net_config() {(
        local vif="$1"
        local cfg
@@ -32,6 +40,7 @@ bridge_interface() {(
 
        config_get iftype "$cfg" type
        [ "$iftype" = bridge ] && config_get "$cfg" ifname
+       prepare_interface_bridge "$cfg"
 )}
 
 prepare_key_wep() {
@@ -84,7 +93,10 @@ wifi_fixup_hwmode() {
 }
 
 wifi_updown() {
-       [ enable = "$1" ] && wifi_updown disable "$2"
+       [ enable = "$1" ] && {
+               wifi_updown disable "$2"
+               scan_wifi
+       }
        for device in ${2:-$DEVICES}; do (
                config_get disabled "$device" disabled
                [ 1 == "$disabled" ] && {
@@ -117,9 +129,11 @@ start_net() {(
        local vifmac="$3"
 
        [ -f "/var/run/$iface.pid" ] && kill "$(cat /var/run/${iface}.pid)" 2>/dev/null
-       include /lib/network
-       scan_interfaces
-       setup_interface "$iface" "$config" "" "$vifmac"
+       [ -z "$config" ] || {
+               include /lib/network
+               scan_interfaces
+               setup_interface "$iface" "$config" "" "$vifmac"
+       }
 )}
 
 set_wifi_up() {
@@ -134,7 +148,7 @@ set_wifi_down() {
        local vifs vif vifstr
 
        [ -f "/var/run/wifi-${cfg}.pid" ] &&
-               kill "$(cat "/var/run/wifi-${cfg}.pid")"
+               kill "$(cat "/var/run/wifi-${cfg}.pid")" 2>/dev/null
        uci_revert_state wireless "$cfg"
        config_get vifs "$cfg" vifs
        for vif in $vifs; do
@@ -144,12 +158,23 @@ set_wifi_down() {
 
 scan_wifi() {
        local cfgfile="$1"
+       DEVICES=
        config_cb() {
-               config_get TYPE "$CONFIG_SECTION" TYPE
-               case "$TYPE" in
+               local type="$1"
+               local section="$2"
+
+               # section start
+               case "$type" in
                        wifi-device)
-                               append DEVICES "$CONFIG_SECTION"
+                               append DEVICES "$section"
+                               config_set "$section" vifs ""
+                               config_set "$section" ht_capab ""
                        ;;
+               esac
+
+               # section end
+               config_get TYPE "$CONFIG_SECTION" TYPE
+               case "$TYPE" in
                        wifi-iface)
                                config_get device "$CONFIG_SECTION" device
                                config_get vifs "$device" vifs 
@@ -169,5 +194,6 @@ scan_wifi
 case "$1" in
        down) wifi_updown "disable" "$2";;
        detect) wifi_detect "$2";;
+       --help|help) usage;;
        *) wifi_updown "enable" "$2";;
 esac