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<base href="https://bugzilla.netfilter.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Support packet mangling from existing packet data"
href="https://bugzilla.netfilter.org/show_bug.cgi?id=1698">1698</a>
</td>
</tr>
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<th>Summary</th>
<td>Support packet mangling from existing packet data
</td>
</tr>
<tr>
<th>Product</th>
<td>nftables
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>x86_64
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P5
</td>
</tr>
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<th>Component</th>
<td>nft
</td>
</tr>
<tr>
<th>Assignee</th>
<td>pablo@netfilter.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>phil@nwl.cc
</td>
</tr></table>
<p>
<div>
<pre>A simple task is unsetting some TCP flags, syntax would look like:
| tcp flags set tcp flags & !(ecn | cwr)
Not sure if the negation actually works here, but 'tcp flags' on RHS is
rejected. Probably needs something like 5d8e33ddb1125 ("evaluate: relax
type-checking for integer arguments in mark statements"), but for payload
statements.</pre>
</div>
</p>
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