Specified IFLA_INET6_STATS NLA attribute holds more

[pronebird]

There is this warning and error that I see on my ubuntu 22.04 machine around time of removing the routes. Do you have any clue what can be the cause of this and what is message type 17?

2024-12-19T09:01:14.805010Z  WARN netlink_packet_route::link::buffer_tool: Specified IFLA_INET6_STATS NLA attribute holds more(most likely new kernel) data which is unknown to netlink-packet-route crate, expecting 288, got 296    

2024-12-19T09:01:14.805264Z ERROR netlink_proto::codecs: failed to decode packet b"T\x02\0\0\x11\0\0\0\0\0\0\0\0\0\0\0\0\0\xfe\xff\x0b\0\0\0\x90\x10\0\0\xff\xff\xff\xff\t\0\x03\0tun1\0\0\0\0\x08\0\r\0\xf4\x01\0\0\x05\0\x10\0\x02\0\0\0\x05\0\x11\0\0\0\0\0\x08\0\x04\0<\x05\0\0\x08\02\0D\0\0\0\x08\03\0\xff\xff\0\0\x08\0\x1b\0\0\0\0\0\x08\0\x1e\0\0\0\0\0\x08\0\x1f\0\x01\0\0\0\x08\0(\0\xff\xff\0\0\x08\0)\0\0\0\x01\0\x08\0 \0\x01\0\0\0\x05\0!\0\0\0\0\0\t\0\x06\0noop\0\0\0\0\x08\0#\0\x01\0\0\0\x08\0/\0\0\0\0\0\x08\00\0\x01\0\0\0\x05\0'\0\0\0\0\0$\0\x0e\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\xc4\0\x17\0~\0\0\0\0\0\0\0\xe0\0\0\0\0\0\0\0\xb3X\0\0\0\0\0\0]S\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0F\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0d\0\x07\0~\0\0\0\xe0\0\0\0\xb3X\0\0]S\0\0\0\0\0\0\0\0\0\0F\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x0c\0+\0\x05\0\x02\0\0\0\0\08\0\x12\0\x08\0\x01\0tun\0,\0\x02\0\x05\0\x03\0\x01\0\0\0\x05\0\x04\0\0\0\0\0\x05\0\x05\0\0\0\0\0\x05\0\x06\0\0\0\0\0\x05\0\x07\0\0\0\0\0\x04\0\x1a\0": Decode error occurred: Failed to parse message with type 17

[cathay4t]

any reproducer?

[pronebird]

I am trying to create a reproducible case.

I have seen very few issues like that, for example here in logs to instruction.

It looks to me that it's somehow tight to running wireguard and/or using tun adapter because these warnings pop up around time when we create/destroy tunnel adapter and start/stop wireguard-go.

I'll let you know when I have something useful for you.

[cathay4t]

We have expand_buffer_if_small() which will pad the buffer to correct size for IFLA_INET6_STATS.

[cathay4t]

The Specified IFLA_INET6_STATS NLA attribute holds more log line indicate the crate version you are using is outdated. Could you try again using latest version (0.21) ?

[pronebird]

The Specified IFLA_INET6_STATS NLA attribute holds more log line indicate the crate version you are using is outdated. Could you try again using latest version (0.21) ?

Still seeing it with netlink-packet-route v0.21.0 on Ubuntu 22.04.2 arm64 🤷‍♂

[pronebird]

Updated my VM to Ubuntu 24.04 and I can confirm that this warning is no longer emitted. I assume that this issue is bound to 22.04.2 for unknown to me reason.

[pronebird]

Errrm so around time of disconnecting wireguard and removing routes, the following is emitted:

025-01-21T15:24:43.331622Z ERROR netlink_proto::codecs: failed to decode packet b"\x94\x02\0\0\x11\0\0\0\0\0\0\0\0\0\0\0\0\0\xfe\xff\x17\0\0\0\x90\x10\0\0\xff\xff\xff\xff\t\0\x03\0tun1\0\0\0\0\x08\0\r\0\xf4\x01\0\0\x05\0\x10\0\x02\0\0\0\x05\0\x11\0\0\0\0\0\x08\0\x04\0<\x05\0\0\x08\02\0D\0\0\0\x08\03\0\xff\xff\0\0\x08\0\x1b\0\0\0\0\0\x08\0\x1e\0\0\0\0\0\x08\0=\0\0\0\0\0\x08\0\x1f\0\x01\0\0\0\x08\0(\0\xff\xff\0\0\x08\0)\0\0\0\x01\0\x08\0:\0\0\0\x01\0\x08\0?\0\0\0\x01\0\x08\0@\0\0\0\x01\0\x08\0;\0\0\0\x01\0\x08\0<\0\xff\xff\0\0\x08\0 \0\x01\0\0\0\x05\0!\0\0\0\0\0\t\0\x06\0noop\0\0\0\0\x08\0#\0\x01\0\0\0\x08\0/\0\0\0\0\0\x08\00\0\x01\0\0\0\x05\0'\0\0\0\0\0$\0\x0e\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\xcc\0\x17\0F\0\0\0\0\0\0\0x\0\0\0\0\0\0\0K!\0\0\0\0\0\0X$\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\00\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0d\0\x07\0F\0\0\0x\0\0\0K!\0\0X$\0\0\0\0\0\0\0\0\0\00\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x0c\0+\0\x05\0\x02\0\0\0\0\08\0\x12\0\x08\0\x01\0tun\0,\0\x02\0\x05\0\x03\0\x01\0\0\0\x05\0\x04\0\0\0\0\0\x05\0\x05\0\0\0\0\0\x05\0\x06\0\0\0\0\0\x05\0\x07\0\0\0\0\0\x04\0\x1a\0\x04\0>\x80\x04\0A\x80": Decode error occurred: Failed to parse message with type 17    
2025-01-21T15:24:43.331942Z  WARN netlink_packet_route::link::buffer_tool: Specified IFLA_INET6_STATS NLA attribute holds more(most likely new kernel) data which is unknown to netlink-packet-route crate, expecting 288, got 304    
2025-01-21T15:24:43.332054Z  WARN netlink_packet_route::link::buffer_tool: Specified IFLA_INET6_ICMP6STATS NLA attribute holds more(most likely new kernel) data which is unknown to netlink-packet-route crate, expecting 48, got 56  

[thomaseizinger]

We are also seeing this after the update to 0.21. We are using netlink to set IPs and routes on a TUN device. Here are the logs:

2025-01-28T06:01:51.467Z  WARN netlink_packet_route::link::buffer_tool: Specified IFLA_INET6_STATS NLA attribute holds more(most likely new kernel) data which is unknown to netlink-packet-route crate, expecting 288, got 304
2025-01-28T06:01:51.468Z  WARN netlink_packet_route::link::buffer_tool: Specified IFLA_INET6_ICMP6STATS NLA attribute holds more(most likely new kernel) data which is unknown to netlink-packet-route crate, expecting 48, got 56
2025-01-28T06:01:51.471Z DEBUG firezone_bin_shared::tun_device_manager::linux: Successfully created ip rule for ipv4
2025-01-28T06:01:51.472Z DEBUG firezone_bin_shared::tun_device_manager::linux: Successfully created ip rule for ipv6
2025-01-28T06:01:51.472Z  INFO firezone_bin_shared::tun_device_manager::linux: Setting new routes new_routes={V4(Ipv4Network { network_address: 100.96.0.0, netmask: 11 }), V4(Ipv4Network { network_address: 100.100.111.0, netmask: 24 }), V4(Ipv4Network { network_address: 10.0.32.101, netmask: 32 }), V6(Ipv6Network { network_address: fd00:2021:1111:8000:100:100:111:0, netmask: 120 }), V6(Ipv6Network { network_address: fd00:2021:1111:8000::, netmask: 107 })}
2025-01-28T06:01:51.472Z  WARN netlink_packet_route::link::buffer_tool: Specified IFLA_INET6_STATS NLA attribute holds more(most likely new kernel) data which is unknown to netlink-packet-route crate, expecting 288, got 304
2025-01-28T06:01:51.472Z  WARN netlink_packet_route::link::buffer_tool: Specified IFLA_INET6_ICMP6STATS NLA attribute holds more(most likely new kernel) data which is unknown to netlink-packet-route crate, expecting 48, got 56
2025-01-28T06:01:51.473Z DEBUG firezone_bin_shared::tun_device_manager::linux: Created new route route=100.96.0.0/11 iface_idx=25
2025-01-28T06:01:51.473Z DEBUG firezone_bin_shared::tun_device_manager::linux: Created new route route=100.100.111.0/24 iface_idx=25
2025-01-28T06:01:51.474Z DEBUG firezone_bin_shared::tun_device_manager::linux: Created new route route=10.0.32.101/32 iface_idx=25
2025-01-28T06:01:51.474Z DEBUG firezone_bin_shared::tun_device_manager::linux: Created new route route=fd00:2021:1111:8000:100:100:111:0/120 iface_idx=25
2025-01-28T06:01:51.475Z DEBUG firezone_bin_shared::tun_device_manager::linux: Created new route route=fd00:2021:1111:8000::/107 iface_idx=25