Messages in this thread | | | From | Xiubo Li <> | Subject | netfilter: does the API break or something else ? | Date | Wed, 13 May 2020 23:20:35 +0800 |
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Hi Experts,
Recently I hit one netfilter issue, it seems the API breaks or something else.
On CentOS8.1 with the recent upstream kernel built from source, such as 5.6.0-rc6/5.7.0-rc4. When running the following command: $ sudo bash -c 'iptables -A FORWARD -o enp3s0f1 -i ceph-brx -j ACCEPT' iptables v1.8.2 (nf_tables): CHAIN_ADD failed (Operation not supported): chain INPUT
With the nftables command:
$ sudo nft add chain ip filter INPUT { type filter hook input priority 0\; } Error: Could not process rule: Operation not supported add chain ip filter INPUT { type filter hook input priority 0; } ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ $ sudo nft add chain ip filter FORWARD { type filter hook forward priority 0\; } Error: Could not process rule: Operation not supported add chain ip filter FORWARD { type filter hook forward priority 0; } ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ $ sudo nft add chain ip filter OUTPUT { type filter hook output priority 0\; } Error: Could not process rule: Operation not supported add chain ip filter OUTPUT { type filter hook output priority 0; } ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
While tried them with downstream kernel 4.18.0-147.8.1.el8_1.x86_64, they all could work well.
The nftables/libnftnl packages are:
$ rpm -qa|grep nft nftables-0.9.0-14.el8.x86_64 libnftnl-1.1.1-4.el8.x86_64
And we have tried v5.7.0-rc4+ with f31 userspace, they all could work well too.
From above I just suspect the API should break. Could someone kindly point out which and where ? Thanks BRs Xiubo
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