dist/tools: add desvirt (incl. example topology)

dist/tools/desvirt/.gitignore

@@ -0,0 +1 @@
+/desvirt

dist/tools/desvirt/0001-add-example-topology.patch

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+From 7a98a45da47846f0379cfbd477936f67a2af75b3 Mon Sep 17 00:00:00 2001
+From: Philipp Rosenkranz <philipp.rosenkranz@fu-berlin.de>
+Date: Thu, 2 Oct 2014 17:09:32 +0200
+Subject: [PATCH 1/1] add example topology
+
+---
+ .desvirt/example.xml | 25 +++++++++++++++++++++++++
+ 1 file changed, 25 insertions(+)
+ create mode 100644 .desvirt/example.xml
+
+diff --git a/.desvirt/example.xml b/.desvirt/example.xml
+new file mode 100644
+index 0000000..e8d0244
+--- /dev/null
++++ b/.desvirt/example.xml
+@@ -0,0 +1,25 @@
++<?xml version="1.0" encoding="UTF-8"?>
++<topology version="1">
++    <net description="two client nodes and one probing node" name="example">
++        <nodeTypes>
++            <nodeType name="riot_native">
++                <interfaces>
++                    <interface name="wlan0" type="802.11bg"/>
++                </interfaces>
++            </nodeType>
++        </nodeTypes>
++        <nodes>
++            <node binary="../../../../examples/default/bin/native/default.elf" name="a1" type="riot_native"/>
++            <node binary="../../../../examples/default/bin/native/default.elf" name="a2" type="riot_native"/>
++            <node binary="../../../../examples/default/bin/native/default.elf" name="a3" type="riot_native"/>
++        </nodes>
++        <links>
++            <link broadcast_loss="0.0" from_if="wlan0" from_node="a1" loss="0.0" to_if="wlan0" to_node="a2" uni="false"/>
++            <link broadcast_loss="0.0" from_if="wlan0" from_node="a1" loss="0.0" to_if="wlan0" to_node="a3" uni="false"/>
++            <link broadcast_loss="0.0" from_if="wlan0" from_node="a2" loss="0.0" to_if="wlan0" to_node="a1" uni="false"/>
++            <link broadcast_loss="0.0" from_if="wlan0" from_node="a2" loss="0.0" to_if="wlan0" to_node="a3" uni="false"/>
++            <link broadcast_loss="0.0" from_if="wlan0" from_node="a3" loss="0.0" to_if="wlan0" to_node="a1" uni="false"/>
++            <link broadcast_loss="0.0" from_if="wlan0" from_node="a3" loss="0.0" to_if="wlan0" to_node="a2" uni="false"/>
++        </links>
++    </net>
++</topology>
+--
+1.9.1

dist/tools/desvirt/Makefile

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+PKG_NAME=desvirt
+PKG_URL=https://github.com/des-testbed/desvirt.git
+PKG_VERSION=master
+PKG_DIR=$(CURDIR)/$(PKG_NAME)
+
+.PHONY: all clean patch distclean desvirtdefine
+
+all: clean $(PKG_NAME) patch desvirtdefine
+
+patch:
+	cd "$(PKG_DIR)" && git am --ignore-whitespace "$(CURDIR)"/*.patch
+
+desvirtdefine: patch
+	$(foreach topology,$(shell ls $(PKG_NAME)/.desvirt/*.xml), \
+		cd $(PKG_NAME) && \
+		./vnet --define --name "$(basename $(notdir $(topology)))";)
+
+$(PKG_NAME):
+	# Get $(PKG_VERSION) of package from $(PKG_URL)
+	$(if $(wildcard $(PKG_NAME)),cd $(CURDIR)/$(PKG_NAME) && \
+		git clean -x -f && \
+		git reset --hard $(PKG_VERSION) \
+		, git clone $(PKG_URL) $(PKG_NAME) && \
+		cd $(PKG_NAME) && \
+		git reset --hard $(PKG_VERSION))
+
+clean::
+	# Reset package to checkout state.
+	$(if $(wildcard $(PKG_NAME)),cd $(CURDIR)/$(PKG_NAME) && \
+		git clean -x -f && \
+		git reset --hard $(PKG_VERSION) \
+		, )
+
+distclean::
+	rm -rf $(CURDIR)/$(PKG_NAME)