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[v4,bpf-next,2/3] bpf: sync kernel uapi headers

Message ID 20190322223848.3338614-3-javierhonduco@fb.com
State Changes Requested
Delegated to: BPF Maintainers
Headers show
Series bpf: add bpf_progenyof helper | expand

Commit Message

Javier Honduvilla Coto March 22, 2019, 10:38 p.m. UTC 
Sync kernel uapi headers.

Signed-off-by: Javier Honduvilla Coto <javierhonduco@fb.com>
---
 tools/include/uapi/linux/bpf.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
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Patch

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 3c04410137d9..cf54cc739bf4 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -2463,6 +2463,13 @@  union bpf_attr {
  * 	Return
  * 		0 if iph and th are a valid SYN cookie ACK, or a negative error
  * 		otherwise.
+ * int bpf_progenyof(int pid)
+ *	Description
+ *		This helper is useful in programs that want to filter events
+ *		happening to a pid of any of its descendants.
+ *	Return
+ *		1 if the currently executing process' pid is in the process
+ *		hierarchy of the passed pid. 0 Otherwise.
  */
 #define __BPF_FUNC_MAPPER(FN)		\
 	FN(unspec),			\
@@ -2565,7 +2572,8 @@  union bpf_attr {
 	FN(skb_ecn_set_ce),		\
 	FN(get_listener_sock),		\
 	FN(skc_lookup_tcp),		\
-	FN(tcp_check_syncookie),
+	FN(tcp_check_syncookie),	\
+	FN(progenyof),
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
  * function eBPF program intends to call