netdev - Re: [PATCH bpf-next v10 10/11] bpftool: implement cgroup tree for BPF_LSM

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Date:   Thu, 23 Jun 2022 15:58:35 -0700
From:   Martin KaFai Lau <kafai@...com>
To:     Stanislav Fomichev <sdf@...gle.com>
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org, ast@...nel.org,
        daniel@...earbox.net, andrii@...nel.org,
        Quentin Monnet <quentin@...valent.com>
Subject: Re: [PATCH bpf-next v10 10/11] bpftool: implement cgroup tree for
 BPF_LSM_CGROUP

On Wed, Jun 22, 2022 at 09:03:45AM -0700, Stanislav Fomichev wrote:
> $ bpftool --nomount prog loadall $KDIR/tools/testing/selftests/bpf/lsm_cgroup.o /sys/fs/bpf/x
> $ bpftool cgroup attach /sys/fs/cgroup lsm_cgroup pinned /sys/fs/bpf/x/socket_alloc
> $ bpftool cgroup attach /sys/fs/cgroup lsm_cgroup pinned /sys/fs/bpf/x/socket_bind
> $ bpftool cgroup attach /sys/fs/cgroup lsm_cgroup pinned /sys/fs/bpf/x/socket_clone
> $ bpftool cgroup attach /sys/fs/cgroup lsm_cgroup pinned /sys/fs/bpf/x/socket_post_create
> $ bpftool cgroup tree
> CgroupPath
> ID       AttachType      AttachFlags     Name
> /sys/fs/cgroup
> 6        lsm_cgroup                      socket_post_create bpf_lsm_socket_post_create
> 8        lsm_cgroup                      socket_bind     bpf_lsm_socket_bind
> 10       lsm_cgroup                      socket_alloc    bpf_lsm_sk_alloc_security
> 11       lsm_cgroup                      socket_clone    bpf_lsm_inet_csk_clone
> 
> $ bpftool cgroup detach /sys/fs/cgroup lsm_cgroup pinned /sys/fs/bpf/x/socket_post_create
> $ bpftool cgroup tree
> CgroupPath
> ID       AttachType      AttachFlags     Name
> /sys/fs/cgroup
> 8        lsm_cgroup                      socket_bind     bpf_lsm_socket_bind
> 10       lsm_cgroup                      socket_alloc    bpf_lsm_sk_alloc_security
> 11       lsm_cgroup                      socket_clone    bpf_lsm_inet_csk_clone
Acked-by: Martin KaFai Lau <kafai@...com>