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| author |   Matteo Croce <teknoraver@meta.com> | 2024-08-19 18:28:05 +0200 |
|---|---|---|
| committer |   Andrii Nakryiko <andrii@kernel.org> | 2024-08-19 15:25:30 -0700 |
| commit | 7f6287417baf57754f47687c6ea1a749a0686ab0 (patch) | |
| tree | abe610173816454c071e451321a05992b585b89f /include/linux/bpf.h | |
| parent | bpf: Enable generic kfuncs for BPF_CGROUP_* programs (diff) | |
| download | wireguard-linux-7f6287417baf57754f47687c6ea1a749a0686ab0.tar.xz wireguard-linux-7f6287417baf57754f47687c6ea1a749a0686ab0.zip | |
bpf: Allow bpf_current_task_under_cgroup() with BPF_CGROUP_*
The helper bpf_current_task_under_cgroup() currently is only allowed for
tracing programs, allow its usage also in the BPF_CGROUP_* program types.
Move the code from kernel/trace/bpf_trace.c to kernel/bpf/helpers.c,
so it compiles also without CONFIG_BPF_EVENTS.
This will be used in systemd-networkd to monitor the sysctl writes,
and filter it's own writes from others:
https://github.com/systemd/systemd/pull/32212
Signed-off-by: Matteo Croce <teknoraver@meta.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240819162805.78235-3-technoboy85@gmail.com
Diffstat (limited to 'include/linux/bpf.h')
| -rw-r--r-- | include/linux/bpf.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h index b9425e410bcb..f0192c173ed8 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -3206,6 +3206,7 @@ extern const struct bpf_func_proto bpf_sock_hash_update_proto; extern const struct bpf_func_proto bpf_get_current_cgroup_id_proto; extern const struct bpf_func_proto bpf_get_current_ancestor_cgroup_id_proto; extern const struct bpf_func_proto bpf_get_cgroup_classid_curr_proto; +extern const struct bpf_func_proto bpf_current_task_under_cgroup_proto; extern const struct bpf_func_proto bpf_msg_redirect_hash_proto; extern const struct bpf_func_proto bpf_msg_redirect_map_proto; extern const struct bpf_func_proto bpf_sk_redirect_hash_proto; |