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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 - python3-nftables wrong return code when working with JSON"
href="https://bugzilla.netfilter.org/show_bug.cgi?id=1499">1499</a>
</td>
</tr>
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<th>Summary</th>
<td>python3-nftables wrong return code when working with JSON
</td>
</tr>
<tr>
<th>Product</th>
<td>nftables
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86_64
</td>
</tr>
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<th>OS</th>
<td>Debian GNU/Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</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>arturo@netfilter.org
</td>
</tr></table>
<p>
<div>
<pre>Original bug report in the Debian bug tracker:
<a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981857">https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981857</a>
I am using the python wrapper in a program and faced a problem.
Trying to list a Table while the Ruleset is empty returns an error, no problem
yet.
Every subsequent call to json_cmd() on the same nftables.Nftables class
instance returns -1 in return code.
Here is a short script reproducing the error :
###### testNFTABLES.py ++
import nftables
import json
nft = nftables.Nftables()
nft.set_json_output(True)
flushRulesetCMD = '{ "nftables": [ { "flush": { "ruleset": null }} ]}'
getTableCMD = '{ "nftables": [ { "list": { "table": { "family": "inet", "name":
"FooTable" }}} ]}'
addTableCMD = '{ "nftables": [ { "add": { "table": { "family": "inet", "name":
"FooTable" }}} ]}'
result = nft.json_cmd(json.loads(flushRulesetCMD))
print(result)
result = nft.json_cmd(json.loads(getTableCMD))
print(result)
# Resetting Nftables class instance makes it work
# nft = nftables.Nftables()
result = nft.json_cmd(json.loads(addTableCMD))
print(result)
###### testNFTABLES.py --</pre>
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