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| author |   Roman Gushchin <guro@fb.com> | 2017-11-05 08:15:32 -0500 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-11-05 23:26:51 +0900 |
| commit | ebc614f687369f9df99828572b1d85a7c2de3d92 (patch) | |
| tree | bfcaecb3636c2ef3fd31da33138fe72db50663f2 /include/linux/bpf_types.h | |
| parent | device_cgroup: prepare code for bpf-based device controller (diff) | |
| download | linux-dev-ebc614f687369f9df99828572b1d85a7c2de3d92.tar.xz linux-dev-ebc614f687369f9df99828572b1d85a7c2de3d92.zip | |
bpf, cgroup: implement eBPF-based device controller for cgroup v2
Cgroup v2 lacks the device controller, provided by cgroup v1.
This patch adds a new eBPF program type, which in combination
of previously added ability to attach multiple eBPF programs
to a cgroup, will provide a similar functionality, but with some
additional flexibility.
This patch introduces a BPF_PROG_TYPE_CGROUP_DEVICE program type.
A program takes major and minor device numbers, device type
(block/character) and access type (mknod/read/write) as parameters
and returns an integer which defines if the operation should be
allowed or terminated with -EPERM.
Signed-off-by: Roman Gushchin <guro@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/bpf_types.h')
| -rw-r--r-- | include/linux/bpf_types.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/bpf_types.h b/include/linux/bpf_types.h index 53c5b9ad7220..978c1d9c9383 100644 --- a/include/linux/bpf_types.h +++ b/include/linux/bpf_types.h @@ -19,6 +19,9 @@ BPF_PROG_TYPE(BPF_PROG_TYPE_KPROBE, kprobe) BPF_PROG_TYPE(BPF_PROG_TYPE_TRACEPOINT, tracepoint) BPF_PROG_TYPE(BPF_PROG_TYPE_PERF_EVENT, perf_event) #endif +#ifdef CONFIG_CGROUP_BPF +BPF_PROG_TYPE(BPF_PROG_TYPE_CGROUP_DEVICE, cg_dev) +#endif BPF_MAP_TYPE(BPF_MAP_TYPE_ARRAY, array_map_ops) BPF_MAP_TYPE(BPF_MAP_TYPE_PERCPU_ARRAY, percpu_array_map_ops) |