Re: netfilter: does the API break or something else ?
On 2020/5/14 18:54, Phil Sutter wrote: Hi, On Wed, May 13, 2020 at 11:20:35PM +0800, Xiubo Li wrote: Recently I hit one netfilter issue, it seems the API breaks or something else. Just for the record, this was caused by a misconfigured kernel. Yeah, thanks Phil for your help. BRs Xiubo Cheers, Phil
Re: netfilter: does the API break or something else ?
Hi, On Wed, May 13, 2020 at 11:20:35PM +0800, Xiubo Li wrote: > Recently I hit one netfilter issue, it seems the API breaks or something > else. Just for the record, this was caused by a misconfigured kernel. Cheers, Phil
netfilter: does the API break or something else ?
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