diff mbox series

[v2,bpf-next,2/3] bpf: sync kernel uapi headers

Message ID 20190301180614.4134278-3-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 1, 2019, 6:06 p.m. UTC 
From: Javier Honduvilla Coto <javierhonduco@gmail.com>

Sync kernel uapi headers.

Signed-off-by: Javier Honduvilla Coto <javierhonduco@gmail.com>
---
 tools/include/uapi/linux/bpf.h | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index bcdd2474eee7..354ec295864c 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -2359,6 +2359,14 @@  union bpf_attr {
  *	Return
  *		A **struct bpf_tcp_sock** pointer on success, or NULL in
  *		case of failure.
+ *
+ * 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),			\
@@ -2457,7 +2465,8 @@  union bpf_attr {
 	FN(spin_lock),			\
 	FN(spin_unlock),		\
 	FN(sk_fullsock),		\
-	FN(tcp_sock),
+	FN(tcp_sock),			\
+	FN(progenyof),
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
  * function eBPF program intends to call