From 203799475b3dcd63bdea453c15a8b8ba9067a121 Mon Sep 17 00:00:00 2001
From: Sapan Bhatia <sapanb@cs.princeton.edu>
Date: Mon, 14 Sep 2009 03:29:18 +0000
Subject: [PATCH 1/1] Added max link bandwidth target for VINI.

---
 sfatables/targets/MAX_LINK_BW.xml        | 13 ++++
 sfatables/targets/__init__.py            |  1 +
 sfatables/targets/example_vini_rspec.xml | 75 ++++++++++++++++++++++++
 sfatables/targets/max_link_bandwidth.xsl | 27 +++++++++
 4 files changed, 116 insertions(+)
 create mode 100644 sfatables/targets/MAX_LINK_BW.xml
 create mode 100644 sfatables/targets/example_vini_rspec.xml
 create mode 100644 sfatables/targets/max_link_bandwidth.xsl

diff --git a/sfatables/targets/MAX_LINK_BW.xml b/sfatables/targets/MAX_LINK_BW.xml
new file mode 100644
index 00000000..35645293
--- /dev/null
+++ b/sfatables/targets/MAX_LINK_BW.xml
@@ -0,0 +1,13 @@
+<target name="MAX_LINK_BANDWIDTH">
+    <!-- The context is empty, since this target does not require any input from SFA -->
+    <context select=""/>
+    <rule>
+        <argument>
+            <name>max-link-bandwidth</name>
+            <help>Maximum link bandwidth.</help>
+            <operand>bps</operand>
+        </argument>
+        </argument>
+    </rule>
+    <processor filename="max_link_banwidth.xsl"/>
+</target>
diff --git a/sfatables/targets/__init__.py b/sfatables/targets/__init__.py
index 8f4e850b..3a5e632c 100644
--- a/sfatables/targets/__init__.py
+++ b/sfatables/targets/__init__.py
@@ -2,4 +2,5 @@ all="""
 RESTRICT_TO_NODES
 ACCEPT
 REJECT
+MAX_LINK_BW
 """.split()
diff --git a/sfatables/targets/example_vini_rspec.xml b/sfatables/targets/example_vini_rspec.xml
new file mode 100644
index 00000000..a693dd1f
--- /dev/null
+++ b/sfatables/targets/example_vini_rspec.xml
@@ -0,0 +1,75 @@
+<RSpec name="vini">
+    <sfatables-input>
+        <rule>
+            <argument>
+                <name>max-link-bandwidth</name>
+                <value>1000001</value>
+            </argument>
+        </rule>
+    </sfatables-input>
+
+        <Request>
+            <NetSpec name="default_topology">
+                <LinkSpec>
+                    <endpoint>i2atla1</endpoint>
+                    <endpoint>i2chic1</endpoint>
+                    <bw>1000000</bw>
+                </LinkSpec>
+                <LinkSpec>
+                    <endpoint>i2atla1</endpoint>
+                    <endpoint>i2hous1</endpoint>
+                    <bw>1000000</bw>
+                </LinkSpec>
+                <LinkSpec>
+                    <endpoint>i2atla1</endpoint>
+                    <endpoint>i2wash1</endpoint>
+                    <bw>1000000</bw>
+                </LinkSpec>
+                <LinkSpec>
+                    <endpoint>i2chic1</endpoint>
+                    <endpoint>i2kans1</endpoint>
+                    <bw>1000000</bw>
+                </LinkSpec>
+                <LinkSpec>
+                    <endpoint>i2chic1</endpoint>
+                    <endpoint>i2wash1</endpoint>
+                    <bw>1000000</bw>
+                </LinkSpec>
+                <LinkSpec>
+                    <endpoint>i2hous1</endpoint>
+                    <endpoint>i2kans1</endpoint>
+                    <bw>1000000</bw>
+                </LinkSpec>
+                <LinkSpec>
+                    <endpoint>i2hous1</endpoint>
+                    <endpoint>i2losa1</endpoint>
+                    <bw>1000000</bw>
+                </LinkSpec>
+                <LinkSpec>
+                    <endpoint>i2kans1</endpoint>
+                    <endpoint>i2salt1</endpoint>
+                    <bw>1000000</bw>
+                </LinkSpec>
+                <LinkSpec>
+                    <endpoint>i2losa1</endpoint>
+                    <endpoint>i2salt1</endpoint>
+                    <bw>1000000</bw>
+                </LinkSpec>
+                <LinkSpec>
+                    <endpoint>i2losa1</endpoint>
+                    <endpoint>i2seat1</endpoint>
+                    <bw>1000000</bw>
+                </LinkSpec>
+                <LinkSpec>
+                    <endpoint>i2newy1</endpoint>
+                    <endpoint>i2wash1</endpoint>
+                    <bw>1000000</bw>
+                </LinkSpec>
+                <LinkSpec>
+                    <endpoint>i2salt1</endpoint>
+                    <endpoint>i2seat1</endpoint>
+                    <bw>1000000</bw>
+                </LinkSpec>
+            </NetSpec>
+        </Request>
+    </RSpec>
diff --git a/sfatables/targets/max_link_bandwidth.xsl b/sfatables/targets/max_link_bandwidth.xsl
new file mode 100644
index 00000000..fe3ee247
--- /dev/null
+++ b/sfatables/targets/max_link_bandwidth.xsl
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+    <!-- Magic sauce copied from a manual. This fragment basically copies everything except for
+    stuff that explicitly matches with the templates defined below. In the case of such a match,
+    the matched node is treated differently.-->
+    <xsl:template match="@* | node()">
+        <xsl:copy>
+            <xsl:apply-templates select="@* | node()"/>
+        </xsl:copy>
+    </xsl:template>
+    <!-- End of magic sauce -->
+
+    <!-- Read in the value of the argument. See 'example_vini_rspec.xml' for an example of such an argument -->
+    <xsl:variable name="max-link-bandwidth" select="//RSpec//rule/argument[name='max-link-bandwidth']/value"/>
+
+    <!-- Drop Linkspecs for which bw > max-link-bandwidth -->
+    <xsl:template match="LinkSpec">
+            <xsl:choose>
+                <xsl:when test="bw &lt; $max-link-bandwidth">
+                    <xsl:copy-of select="."/>
+                </xsl:when>
+                <xsl:otherwise/>
+            </xsl:choose> 
+    </xsl:template>
+
+    <xsl:template match="sfatables-input"/>
+</xsl:stylesheet>
-- 
2.43.0