From 15cd79dc46303988464d962ad6bf59050feba801 Mon Sep 17 00:00:00 2001
From: "Robin H. Johnson" <robbat2@gentoo.org>
Date: Sun, 8 Nov 2015 06:16:08 -0800
Subject: New interface type: dummy.

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
---
 TODO                     |  1 -
 doc/net.example.Linux.in |  9 +++++++++
 net/dummy.sh             | 41 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 50 insertions(+), 1 deletion(-)
 create mode 100644 net/dummy.sh

diff --git a/TODO b/TODO
index f8d8902..64f62e2 100644
--- a/TODO
+++ b/TODO
@@ -12,7 +12,6 @@
 	- add vlan3 - _ifindex (eth0=0,vlan2=1,vlan3=2)
 	Now your routing table has entries for both vlan2 and vlan3 with a metric of 2.
 - Support many more device types easily:
-  - Dummy: ip link add dev dummy1 type dummy
   - HSR: ip link add name hsr0 type hsr slave1 dummy3 slave2 dummy4
   - VXLAN: ip link add link dummy2 name vxlan199 type vxlan id 199 dev dummy2 group 224.2.0.199 dstport 4789
   - IPVLAN: ...
diff --git a/doc/net.example.Linux.in b/doc/net.example.Linux.in
index f71385d..1eaebac 100644
--- a/doc/net.example.Linux.in
+++ b/doc/net.example.Linux.in
@@ -150,6 +150,15 @@
 
 ##############################################################################
 # OPTIONAL MODULES
+#-----------------------------------------------------------------------------
+# IPROUTE2 INTERFACE TYPES
+# The type_$iface variable maps to the link type parameter in iproute2.
+# If you need to use additional interface types, you should try to use that
+# parameter. Supported interface types are listed below. Please note that some
+# interface types may mandate a specific naming scheme.
+#
+# Dummy network interface:
+#type_dummy0=dummy
 
 #-----------------------------------------------------------------------------
 # WIRELESS (802.11 support)
diff --git a/net/dummy.sh b/net/dummy.sh
new file mode 100644
index 0000000..3050216
--- /dev/null
+++ b/net/dummy.sh
@@ -0,0 +1,41 @@
+# Copyright (c) 2015 Gentoo Foundation
+# All rights reserved. Released under the 2-clause BSD license.
+
+dummy_depend()
+{
+	program ip
+	after interface
+	before dhcp macchanger
+}
+
+_is_dummy() {
+	is_interface_type dummy
+}
+
+dummy_pre_start()
+{
+	local dummy=
+	eval dummy=\$type_${IFVAR}
+	[ "${dummy}" = "dummy" ] || return 0
+
+	ebegin "Creating dummy interface ${IFACE}"
+	cmd="ip link add name "${IFACE}" type dummy"
+	veinfo $cmd
+	if $cmd ; then
+		eend 0 && _up && set_interface_type dummy
+	else
+		eend 1
+	fi
+}
+
+
+dummy_post_stop()
+{
+	_is_dummy || return 0
+
+	ebegin "Removing dummy ${IFACE}"
+	cmd="ip link delete "${IFACE}" type dummy"
+	veinfo "$cmd"
+	$cmd
+	eend $?
+}
-- 
cgit v1.2.3-65-gdbad