From e56079102882a46c189559d116506b5a2df5401c Mon Sep 17 00:00:00 2001
From: Gleb Smirnoff <glebius@FreeBSD.org>
Date: Wed, 2 Sep 2015 12:46:42 +0000
Subject: [PATCH] Fix dynamic attach/detach of 802.11 devices after r287197:

o In pccard_ether add code to start children of a 802.11
  device, that are configured in rc.conf.
o In devd.conf provide a regex matching all 802.11 devices,
  and on match run pccard_ether to spawn children.

PR:		202784
Submitted by:	<vidwer gmail.com>
In collaboration with:	"Oleg V. Nauman" <oleg opentransfer.com>
---
 etc/devd.conf    | 20 +++++++++++---------
 etc/pccard_ether | 17 +++++++++++++++++
 2 files changed, 28 insertions(+), 9 deletions(-)

diff --git a/etc/devd.conf b/etc/devd.conf
index 04a090bdc80..120eabd629d 100644
--- a/etc/devd.conf
+++ b/etc/devd.conf
@@ -22,6 +22,9 @@ options {
 		"(aac|adv|adw|aha|ahb|ahc|ahd|aic|amd|amr|asr|bt|ciss|ct|dpt|\
 		esp|ida|iir|ips|isp|mlx|mly|mpt|ncr|ncv|nsp|stg|sym|trm|wds)\
 		[0-9]+";
+	set wifi-driver-regex
+		"(ath|bwi|bwn|ipw|iwi|iwn|malo|mwl|ral|rsu|rum|run|uath|upgt|\
+		ural|urtw|urtwn|wi|wpi|wtap|zyd)[0-9]+";
 };
 
 # Note that the attach/detach with the highest value wins, so that one can
@@ -57,17 +60,16 @@ notify 0 {
 };
 
 #
-# Like Ethernet devices, but separate because
-# they have a different media type.  We may want
-# to exploit this later.
+# Like Ethernet devices, but separate because 802.11 require spawning
+# wlan(4) interface.
 #
-detach 0 {
-	media-type "802.11";
-	action "/etc/pccard_ether $device-name stop";
-};
 attach 0 {
-	media-type "802.11";
-	action "/etc/pccard_ether $device-name start";
+	device-name "$wifi-driver-regex";
+	action "/etc/pccard_ether $device-name startchildren";
+};
+detach 0 {
+	device-name "$wifi-driver-regex";
+	action "/etc/pccard_ether $device-name stopchildren";
 };
 notify 0 {
 	match "system"		"IFNET";
diff --git a/etc/pccard_ether b/etc/pccard_ether
index 5bd9c3326fe..7d324a11b89 100755
--- a/etc/pccard_ether
+++ b/etc/pccard_ether
@@ -17,6 +17,9 @@ stop_precmd="checkauto"
 stop_cmd="pccard_ether_stop"
 restart_precmd="checkauto"
 restart_cmd="pccard_ether_restart"
+startchildren_cmd="pccard_ether_startchildren"
+stopchildren_cmd="pccard_ether_stopchildren"
+extra_commands="startchildren stopchildren"
 
 setup_routes()
 {
@@ -114,6 +117,20 @@ pccard_ether_restart()
 	pccard_ether_start
 }
 
+pccard_ether_startchildren()
+{
+	for child in `get_if_var $ifn wlans_IF`; do
+		/etc/rc.d/netif quietstart $child
+	done
+}
+
+pccard_ether_stopchildren()
+{
+	for child in `get_if_var $ifn wlans_IF`; do
+		/etc/rc.d/netif quietstop $child
+	done
+}
+
 ifn=$1
 shift
 if [ -z "$*" ]; then