Add build system scaffolding and libc headers

1 files changed, 23 insertions, 0 deletions

diff --git a/include/arch/x86_64/linux/seg6_hmac.h b/include/arch/x86_64/linux/seg6_hmac.h
new file mode 100644
index 00000000..7a9190e7
--- /dev/null
+++ b/include/arch/x86_64/linux/seg6_hmac.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _LINUX_SEG6_HMAC_H
+#define _LINUX_SEG6_HMAC_H
+
+#include <linux/types.h>
+#include <linux/seg6.h>
+
+#define SEG6_HMAC_SECRET_LEN 64
+#define SEG6_HMAC_FIELD_LEN  32
+
+struct sr6_tlv_hmac {
+	struct sr6_tlv tlvhdr;
+	__u16 reserved;
+	__be32 hmackeyid;
+	__u8 hmac[SEG6_HMAC_FIELD_LEN];
+};
+
+enum {
+	SEG6_HMAC_ALGO_SHA1 = 1,
+	SEG6_HMAC_ALGO_SHA256 = 2,
+};
+
+#endif