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<base href="https://bugzilla.netfilter.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - __netlink_gen_concat_key assertion raised by attempt to expand set-defining variable as a set key"
href="https://bugzilla.netfilter.org/show_bug.cgi?id=1715">1715</a>
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</tr>
<tr>
<th>Summary</th>
<td>__netlink_gen_concat_key assertion raised by attempt to expand set-defining variable as a set key
</td>
</tr>
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<th>Product</th>
<td>nftables
</td>
</tr>
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<th>Version</th>
<td>1.0.x
</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>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P5
</td>
</tr>
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<th>Component</th>
<td>nft
</td>
</tr>
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<th>Assignee</th>
<td>pablo@netfilter.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>kfm@plushkava.net
</td>
</tr></table>
<p>
<div>
<pre>Consider the following ruleset.
define ext_if = { "eth0", "eth1" }
table ip filter {
chain c {
iifname . tcp dport { $ext_if . 22 } accept
}
}
Attempting to load this ruleset results in SIGABRT.
BUG: invalid expression type 'set' in setnft: netlink.c:304:
__netlink_gen_concat_key: Assertion `0' failed.
Aborted (core dumped)
I presume that this is a consequence of ntables not knowing how to treat such a
variable, which implies the generation of multiple elements. Ideally, nftables
would be able to handle this and commpose the set as { "eth0" . 22, "eth1" . 22
}. Otherwise, it should instead print an informative diagnostic message and
exit, rather than die to a signal.</pre>
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