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authorYonghong Song <yonghong.song@linux.dev>2024-04-09 21:35:27 -0700
committerAlexei Starovoitov <ast@kernel.org>2024-04-10 19:52:25 -0700
commit699c23f02c65cbfc3e638f14ce0d70c23a2e1f02 (patch)
tree070b277b3ca08c33c240a73d794ce2226dd6a719 /kernel/bpf/syscall.c
parentd0a2ba197bcbeaa795c5c961d927bcaf55964669 (diff)
bpf: Add bpf_link support for sk_msg and sk_skb progs
Add bpf_link support for sk_msg and sk_skb programs. We have an internal request to support bpf_link for sk_msg programs so user space can have a uniform handling with bpf_link based libbpf APIs. Using bpf_link based libbpf API also has a benefit which makes system robust by decoupling prog life cycle and attachment life cycle. Reviewed-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20240410043527.3737160-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel/bpf/syscall.c')
-rw-r--r--kernel/bpf/syscall.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index e44c276e8617..7d392ec83655 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -5213,6 +5213,10 @@ static int link_create(union bpf_attr *attr, bpfptr_t uattr)
case BPF_PROG_TYPE_SK_LOOKUP:
ret = netns_bpf_link_create(attr, prog);
break;
+ case BPF_PROG_TYPE_SK_MSG:
+ case BPF_PROG_TYPE_SK_SKB:
+ ret = sock_map_link_create(attr, prog);
+ break;
#ifdef CONFIG_NET
case BPF_PROG_TYPE_XDP:
ret = bpf_xdp_link_attach(attr, prog);