bpf: sockmap sample support for bpf_msg_cork_bytes()
Add sample application support for the bpf_msg_cork_bytes helper. This
lets the user specify how many bytes each verdict should apply to.
Similar to apply_bytes() tests these can be run as a stand-alone test
when used without other options or inline with other tests by using
the txmsg_cork option along with any of the basic tests txmsg,
txmsg_redir, txmsg_drop.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 01b9c97..e6924ab 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -792,7 +792,8 @@ union bpf_attr {
FN(override_return), \
FN(sock_ops_cb_flags_set), \
FN(msg_redirect_map), \
- FN(msg_apply_bytes),
+ FN(msg_apply_bytes), \
+ FN(msg_cork_bytes),
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
* function eBPF program intends to call