From: Florian Westphal <fw@strlen.de>
To: <netfilter-devel@vger.kernel.org>
Cc: Florian Westphal <fw@strlen.de>
Subject: [PATCH nft 2/2] doc: payload and conntrack statement
Date: Fri, 9 Sep 2016 00:16:56 +0200 [thread overview]
Message-ID: <1473373016-24078-2-git-send-email-fw@strlen.de> (raw)
In-Reply-To: <1473373016-24078-1-git-send-email-fw@strlen.de>
Signed-off-by: Florian Westphal <fw@strlen.de>
---
doc/nft.xml | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 81 insertions(+), 1 deletion(-)
diff --git a/doc/nft.xml b/doc/nft.xml
index 6297674..3b215f8 100644
--- a/doc/nft.xml
+++ b/doc/nft.xml
@@ -2037,7 +2037,7 @@ filter output oif eth0
</row>
<row>
<entry>label</entry>
- <entry>Connection tracking label</entry>
+ <entry>Connection tracking label bit or symbolic name defined in connlabel.conf in the nftables include path</entry>
<entry>ct_label</entry>
</row>
<row>
@@ -2207,6 +2207,29 @@ filter input iif eth0 drop
</para>
</refsect2>
<refsect2>
+ <title>Payload statement</title>
+ <para>
+ The payload statement alters packet content.
+ It can be used for example to set ip DSCP (differv) header field or ipv6 flow labels.
+ </para>
+ <para>
+ <example>
+ <title>route some packets instead of bridging</title>
+ <programlisting>
+# redirect tcp:http from 192.160.0.0/16 to local machine for routing instead of bridging
+# assumes 00:11:22:33:44:55 is local MAC address.
+bridge input meta iif eth0 ip saddr 192.168.0.0/16 tcp dport 80 meta pkttype set unicast ether daddr set 00:11:22:33:44:55
+ </programlisting>
+ </example>
+ <example>
+ <title>Set IPv4 DSCP header field</title>
+ <programlisting>
+ip forward ip dscp set 42
+ </programlisting>
+ </example>
+ </para>
+ </refsect2>
+ <refsect2>
<title>Log statement</title>
<para>
<cmdsynopsis>
@@ -2390,6 +2413,63 @@ filter input iif eth0 drop
</refsect2>
<refsect2>
+ <title>Conntrack statement</title>
+ <para>
+ The conntrack statement can be used to set the conntrack mark and conntrack labels.
+ </para>
+ <para>
+ <cmdsynopsis>
+ <command>ct</command>
+ <group choice="req">
+ <arg>mark</arg>
+ <arg>label</arg>
+ </group>
+ <arg choice="none">set</arg>
+ <replaceable>value</replaceable>
+ </cmdsynopsis>
+ </para>
+ <para>
+ The ct statement sets meta data associated with a connection.
+ </para>
+ <para>
+ <table frame="all">
+ <title>Meta statement types</title>
+ <tgroup cols='3' align='left' colsep='1' rowsep='1'>
+ <colspec colname='c1'/>
+ <colspec colname='c2'/>
+ <colspec colname='c3'/>
+ <thead>
+ <row>
+ <entry>Keyword</entry>
+ <entry>Description</entry>
+ <entry>Value</entry>
+ </row>
+ </thead>
+ <tbody>
+ <row>
+ <entry>mark</entry>
+ <entry>Connection tracking mark</entry>
+ <entry>mark</entry>
+ </row>
+ <row>
+ <entry>label</entry>
+ <entry>Connection tracking label</entry>
+ <entry>label</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+ </para>
+ <para>
+ <example>
+ <title>save packet nfmark in conntrack</title>
+ <programlisting>
+ct set mark meta mark
+ </programlisting>
+ </example>
+ </para>
+ </refsect2>
+ <refsect2>
<title>Meta statement</title>
<para>
A meta statement sets the value of a meta expression.
--
2.7.3
next prev parent reply other threads:[~2016-09-08 22:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-08 22:16 [PATCH nft 1/2] doc: update meta expression Florian Westphal
2016-09-08 22:16 ` Florian Westphal [this message]
2016-09-08 22:30 ` [PATCH nft 2/2] doc: payload and conntrack statement Pablo Neira Ayuso
2016-09-08 23:49 ` Florian Westphal
2016-09-08 22:23 ` [PATCH nft 1/2] doc: update meta expression Pablo Neira Ayuso
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