From 611864f4bddf787aff3323f162da589b1b26529c Mon Sep 17 00:00:00 2001
From: Klement Sekera <ksekera@cisco.com>
Date: Wed, 26 Sep 2018 11:19:00 +0200
Subject: ipsec: add missing ipv6 ah code & ipv6 tests

Change-Id: I89e90193ded1beb6cb0950c15737f9467efac1c3
Signed-off-by: Klement Sekera <ksekera@cisco.com>
---
 src/vnet/ipsec/ah.h | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/vnet/ipsec/ah.h')

diff --git a/src/vnet/ipsec/ah.h b/src/vnet/ipsec/ah.h
index 37fc29a1ced..f74ad9b01c1 100644
--- a/src/vnet/ipsec/ah.h
+++ b/src/vnet/ipsec/ah.h
@@ -49,6 +49,15 @@ typedef CLIB_PACKED (struct {
 }) ip6_and_ah_header_t;
 /* *INDENT-ON* */
 
+always_inline u8
+ah_calc_icv_padding_len (u8 icv_size, int is_ipv6)
+{
+  ASSERT (0 == is_ipv6 || 1 == is_ipv6);
+  const u8 req_multiple = 4 + 4 * is_ipv6;	// 4 for ipv4, 8 for ipv6
+  const u8 total_size = sizeof (ah_header_t) + icv_size;
+  return (req_multiple - total_size % req_multiple) % req_multiple;
+}
+
 #endif /* __AH_H__ */
 
 /*
-- 
cgit 1.2.3-korg