From: Geliang Tang <tanggeliang@kylinos.cn>
Currently, bpf_skc_to_mptcp_sock() helper is not allowed to be used
in cg_sockopt. This patch adds this permission.
Thanks to the previous patch allowing skc_to_mptcp_sock() to be used
with MPTCP sockets, this permission allows this helper to be use it in
CGroup BPF hooks, e.g. [gs]etsocktopt.
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
---
Notes:
- v2: new patch.
---
kernel/bpf/cgroup.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/bpf/cgroup.c b/kernel/bpf/cgroup.c
index 46e5db65dbc8d8c6591b53dfc77bb689357f33ea..1ca22e4842cf6b6c6bdbc37bf415187e706b2b69 100644
--- a/kernel/bpf/cgroup.c
+++ b/kernel/bpf/cgroup.c
@@ -2358,6 +2358,8 @@ cg_sockopt_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
#ifdef CONFIG_INET
case BPF_FUNC_tcp_sock:
return &bpf_tcp_sock_proto;
+ case BPF_FUNC_skc_to_mptcp_sock:
+ return &bpf_skc_to_mptcp_sock_proto;
#endif
case BPF_FUNC_perf_event_output:
return &bpf_event_output_data_proto;
--
2.47.1