On Fri, Jul 17, 2020 at 05:11:22PM +0800, Hangbin Liu wrote:

On Thu, Jul 16, 2020 at 12:28:16AM +0200, Daniel Borkmann wrote:

quoted

quoted

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index c67c88ad35f8..9d4dbef3c943 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h

@@ -253,6 +253,7 @@ enum bpf_arg_type {
  	ARG_PTR_TO_ALLOC_MEM,	/* pointer to dynamically allocated memory */
  	ARG_PTR_TO_ALLOC_MEM_OR_NULL,	/* pointer to dynamically allocated memory or NULL */
  	ARG_CONST_ALLOC_SIZE_OR_ZERO,	/* number of allocated bytes requested */
+	ARG_CONST_MAP_PTR_OR_NULL,	/* const argument used as pointer to bpf_map or NULL */
  };

In combination with the set, this also needs test_verifier selftests in order to
exercise BPF insn snippets for the good & [expected] bad case.

Hi Daniel,

I just come up with a question, how should I test it without no bpf
helper using it? Should I wait until the XDP multicast patch set merged?

ping?