Re: [PATCH iproute2-next v3] lib/bpf_legacy: Use userspace SHA-1 code instead of AF_ALG

David Ahern [off-list ref] writes:

On 12/18/25 1:09 PM, Eric Biggers wrote:

quoted

diff --git a/include/sha1.h b/include/sha1.h
new file mode 100644
index 00000000..4a2ed513
--- /dev/null
+++ b/include/sha1.h

@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * SHA-1 message digest algorithm
+ *
+ * Copyright 2025 Google LLC
+ */
+#ifndef __SHA1_H__
+#define __SHA1_H__
+
+#include <linux/types.h>
+#include <stddef.h>
+
+#define SHA1_DIGEST_SIZE 20
+#define SHA1_BLOCK_SIZE 64

How come these are not part of the uapi?

I applied this to iproute2-next to get as much soak time as possible.
Anyone using legacy bpf (added Toke in case he knows) in particular
should test with top of tree.

Hmm, not aware of any users of the old code. I believe most distros
build iproute2 with libbpf support these days; that's certainly the case
in Red Hat land.

-Toke