Support code for the OpenBSD dhclient. This significantly changes the

way interfaces are configured.  Some key points:

  - At startup, all interfaces are configured through /etc/rc.d/netif.
  - ifconfig_<if> variables my now mix real ifconfig commands the with
    DHCP and WPA directives.  For example, this allows media
    configuration prior to running dhclient.
  - /etc/rc.d/dhclient is not run at startup except by netif to start
    dhclient on specific interfaces.
  - /etc/pccard_ether calls "/etc/rc.d/netif start <if>" to do most of
    it's work.
  - /etc/pccard_ether no longer takes additional arguments to pass to
    ifconfig.  Instead, ifconfig_<if> variables are now honored in favor
    of pccard_ifconfig when available.
  - /etc/pccard_ether will only run on interfaces specified in
    removable_interfaces, even if pccard_ifconfig is set.

1 files changed, 14 insertions, 1 deletions

diff --git a/etc/devd.conf b/etc/devd.conf
index 0646585..6968a8b 100644
--- a/etc/devd.conf
+++ b/etc/devd.conf
@@ -32,7 +32,7 @@ options {
 # override these general rules.
 
 #
-# For ethernet like devices, the default is to run dhclient.  Due to
+# For ethernet like devices start configuring the interface.  Due to
 # a historical accident, this script is called pccard_ether.
 #
 attach 0 {
@@ -45,6 +45,19 @@ detach 0 {
 	action "/etc/pccard_ether $device-name stop";
 };
 
+#
+# Try to start dhclient on Ethernet like interfaces when the link comes
+# up.  Only devices that are configured to support DHCP will actually
+# run it.  No link down rule exists because dhclient automaticly exits
+# when the link goes down.
+#
+notify 0 {
+	match "system"		"IFNET";
+	match "subsystem"	"$ethernet-nic-regex";
+	match "type"		"LINK_UP";
+	action "/etc/rc.d/dhclient start $subsystem";
+};
+
 # An entry like this might be in a different file, but is included here
 # as an example of how to override things.  Normally 'ed50' would match
 # the above attach/detach stuff, but the value of 100 makes it