Find that all three commits are acked by the maintainer. Could we
merge this to the upstream? Or do we have any other comments?
Lingpeng Chen <forrest0579@xxxxxxxxx> 于2020年2月25日周二 下午12:46写道：
>
> Currently 5-tuple(sip+dip+sport+dport+proto) can't identify a
> uniq connection because there may be multi net namespace.
> For example, there may be a chance that netns a and netns b all
> listen on 127.0.0.1:8080 and the client with same port 40782
> connect to them. Without netns number, sock ops program
> can't distinguish them.
> Using bpf_get_netns_id helpers to get current connection
> netns number to distinguish connections.
>
> Changes in v4:
> - rename get_netns_id_sock_ops to get_getns_id
> - rebase from bpf-next
>
> Changes in v3:
> - rename sock_ops_get_netns to get_netns_id
>
> Changes in v2:
> - Return u64 instead of u32 for sock_ops_get_netns
> - Fix build bug when CONFIG_NET_NS not set
> - Add selftest for sock_ops_get_netns
>
> Lingpeng Chen (3):
> bpf: Add get_netns_id helper function for sock_ops
> bpf: Sync uapi bpf.h to tools/
> selftests/bpf: add selftest for get_netns_id helper
>
> include/uapi/linux/bpf.h | 9 +++-
> net/core/filter.c | 20 ++++++++
> tools/include/uapi/linux/bpf.h | 9 +++-
> .../selftests/bpf/progs/test_tcpbpf_kern.c | 11 +++++
> .../testing/selftests/bpf/test_tcpbpf_user.c | 46 ++++++++++++++++++-
> 5 files changed, 92 insertions(+), 3 deletions(-)
>
>
> base-commit e0360423d020
> ("selftests/bpf: Run SYN cookies with reuseport BPF test only for TCP")
> --
> 2.20.1
>
--
Beijing University of Posts and Telecommunications
forrest0579@xxxxxxxxx
