selftests/bpf: Add cgroup id helpers to bpf_helpers.h

Add bpf_skb_cgroup_id and bpf_skb_ancestor_cgroup_id helpers to
bpf_helpers.h to use them in tests and samples.

Signed-off-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Andrey Ignatov 2018-08-12 10:49:29 -07:00 committed by Daniel Borkmann
parent 539764d07b
commit 02f6ac7456
1 changed files with 4 additions and 0 deletions

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@ -139,6 +139,10 @@ static unsigned long long (*bpf_get_current_cgroup_id)(void) =
(void *) BPF_FUNC_get_current_cgroup_id;
static void *(*bpf_get_local_storage)(void *map, unsigned long long flags) =
(void *) BPF_FUNC_get_local_storage;
static unsigned long long (*bpf_skb_cgroup_id)(void *ctx) =
(void *) BPF_FUNC_skb_cgroup_id;
static unsigned long long (*bpf_skb_ancestor_cgroup_id)(void *ctx, int level) =
(void *) BPF_FUNC_skb_ancestor_cgroup_id;
/* llvm builtin functions that eBPF C program may use to
* emit BPF_LD_ABS and BPF_LD_IND instructions