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bpf: Sync bpf.h to tools/ 

Sync skb_ancestor_cgroup_id() related bpf UAPI changes to tools/.

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 10:49:28 -07:00 committed by Daniel Borkmann
parent 7723628101
commit 539764d07b
1 changed files with 20 additions and 1 deletions
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21
tools/include/uapi/linux/bpf.h
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@ -2093,6 +2093,24 @@ union bpf_attr {
* Return
* The id is returned or 0 in case the id could not be retrieved.
*
* u64 bpf_skb_ancestor_cgroup_id(struct sk_buff *skb, int ancestor_level)
* Description
* Return id of cgroup v2 that is ancestor of cgroup associated
* with the *skb* at the *ancestor_level*. The root cgroup is at
* *ancestor_level* zero and each step down the hierarchy
* increments the level. If *ancestor_level* == level of cgroup
* associated with *skb*, then return value will be same as that
* of **bpf_skb_cgroup_id**\ ().
*
* The helper is useful to implement policies based on cgroups
* that are upper in hierarchy than immediate cgroup associated
* with *skb*.
*
* The format of returned id and helper limitations are same as in
* **bpf_skb_cgroup_id**\ ().
* Return
* The id is returned or 0 in case the id could not be retrieved.
*
* u64 bpf_get_current_cgroup_id(void)
* Return
* A 64-bit integer containing the current cgroup id based
@ -2207,7 +2225,8 @@ union bpf_attr {
FN(skb_cgroup_id), \
FN(get_current_cgroup_id), \
FN(get_local_storage), \
FN(sk_select_reuseport),
FN(sk_select_reuseport), \
FN(skb_ancestor_cgroup_id),
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
* function eBPF program intends to call