Announce all interfaces to devd on attach/detach. This adds a new devctl

notification so all interfaces including pseudo are reported. When netif
creates the clones at startup devctl_disable has not been turned off yet so the
interfaces will not be initialised twice, enforce this by adding an explicit
order between rc.d/netif and rc.d/devd.

This change allows actions to taken in userland when an interface is cloned
and the pseudo interface will be automatically configured if a ifconfig_<int>=""
line exists in rc.conf.

Reviewed by:		brooks
No objections on:	net

3 files changed, 14 insertions, 10 deletions

diff --git a/etc/devd.conf b/etc/devd.conf
index a8d7716..15adefa 100644
--- a/etc/devd.conf
+++ b/etc/devd.conf
@@ -28,17 +28,19 @@ options {
 # override these general rules.
 
 #
-# For ethernet like devices start configuring the interface.  Due to
-# a historical accident, this script is called pccard_ether.
+# Configure the interface on attach.  Due to a historical accident, this
+# script is called pccard_ether.
 #
-attach 0 {
-	media-type "ethernet";
-	action "/etc/pccard_ether $device-name start";
+notify 0 {
+	match "system"		"IFNET";
+	match "type"		"ATTACH";
+	action "/etc/pccard_ether $subsystem start";
 };
 
-detach 0 {
-	media-type "ethernet";
-	action "/etc/pccard_ether $device-name stop";
+notify 0 {
+	match "system"		"IFNET";
+	match "type"		"DETACH";
+	action "/etc/pccard_ether $subsystem stop";
 };
 
 #
diff --git a/etc/rc.d/devd b/etc/rc.d/devd
index 50c8a17..f025f9a 100644
--- a/etc/rc.d/devd
+++ b/etc/rc.d/devd
@@ -4,8 +4,8 @@
 #
 
 # PROVIDE: devd
-# REQUIRE: NETWORKING
-# BEFORE: mountcritremote
+# REQUIRE: netif
+# BEFORE: NETWORKING mountcritremote
 # KEYWORD: nojail
 
 . /etc/rc.subr
diff --git a/sys/net/if.c b/sys/net/if.c
index 03b21ca..a3c02bb 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -505,6 +505,7 @@ if_attach(struct ifnet *ifp)
 		if_attachdomain1(ifp);
 
 	EVENTHANDLER_INVOKE(ifnet_arrival_event, ifp);
+	devctl_notify("IFNET", ifp->if_xname, "ATTACH", NULL);
 
 	/* Announce the interface. */
 	rt_ifannouncemsg(ifp, IFAN_ARRIVAL);
@@ -682,6 +683,7 @@ if_detach(struct ifnet *ifp)
 	/* Announce that the interface is gone. */
 	rt_ifannouncemsg(ifp, IFAN_DEPARTURE);
 	EVENTHANDLER_INVOKE(ifnet_departure_event, ifp);
+	devctl_notify("IFNET", ifp->if_xname, "DETACH", NULL);
 
 	IF_AFDATA_LOCK(ifp);
 	for (dp = domains; dp; dp = dp->dom_next) {