Implement ifconfig_wlanX="HOSTAP".

Not only this is a bit cleaner, it allows multiple instances of hostapd to be
running on the system host, useful for simultaneous dual-band WiFi.
This is similar to ifconfig_wlanX="WPA" but it uses /etc/hostapd-wlanX.conf.
Compatibility with hostapd_enable=YES/NO was kept.

Reviewed by:	adrian

etc/network.subr

@@ -171,6 +171,9 @@ ifconfig_up()
 	if wpaif $1; then
 		/etc/rc.d/wpa_supplicant start $1
 		_cfg=0		# XXX: not sure this should count
+	elif hostapif $1; then
+		/etc/rc.d/hostapd start $1
+		_cfg=0
 	fi
 
 	if dhcpif $1; then
@@ -198,6 +201,9 @@ ifconfig_down()
 	if wpaif $1; then
 		/etc/rc.d/wpa_supplicant stop $1
 		_cfg=0
+	elif hostapif $1; then
+		/etc/rc.d/hostapd stop $1
+		_cfg=0
 	fi
 
 	if dhcpif $1; then
@@ -276,6 +282,7 @@ ifconfig_getargs()
 		[Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) ;;
 		[Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) ;;
 		[Ww][Pp][Aa]) ;;
+		[Hh][Oo][Ss][Tt][Aa][Pp]) ;;
 		*)
 			_args="$_args $_arg"
 			;;
@@ -376,6 +383,24 @@ wpaif()
 	return 1
 }
 
+# hostapif if
+#	Returns 0 if the interface is a HOSTAP interface and 1 otherwise.
+hostapif()
+{
+	local _tmpargs _arg
+	_tmpargs=`_ifconfig_getargs $1`
+
+	for _arg in $_tmpargs; do
+		case $_arg in
+		[Hh][Oo][Ss][Tt][Aa][Pp])
+			return 0
+			;;
+		esac
+	done
+
+	return 1
+}
+
 # afexists af
 #	Returns 0 if the address family is enabled in the kernel
 #	1 otherwise.

etc/rc.d/hostapd

@@ -10,11 +10,18 @@
 . /etc/rc.subr
 
 name="hostapd"
-rcvar="hostapd_enable"
 command="/usr/sbin/${name}"
 
-conf_file="/etc/${name}.conf"
+ifn="$2"
-pidfile="/var/run/${name}.pid"
+if [ -z "$ifn" ]; then
+	rcvar="hostapd_enable"
+	conf_file="/etc/${name}.conf"
+	pidfile="/var/run/${name}.pid"
+else
+	rcvar=
+	conf_file="/etc/${name}-${ifn}.conf"
+	pidfile="/var/run/${name}-${ifn}.pid"
+fi
 
 command_args="-P ${pidfile} -B ${conf_file}"
 required_files="${conf_file}"