From 6ffaa8626e110acdc77854527861799de349a4f8 Mon Sep 17 00:00:00 2001
From: Martin Willi <martin@revosec.ch>
Date: Fri, 29 May 2015 23:21:39 +0200
Subject: [PATCH] ikev2: Derive additional 4 byte CHILD_SA nonce keymat for
 ChaCha20-Poly1305

---
 src/libcharon/sa/ikev2/keymat_v2.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libcharon/sa/ikev2/keymat_v2.c b/src/libcharon/sa/ikev2/keymat_v2.c
index b57306b66..fce0840e3 100644
--- a/src/libcharon/sa/ikev2/keymat_v2.c
+++ b/src/libcharon/sa/ikev2/keymat_v2.c
@@ -528,6 +528,7 @@ METHOD(keymat_v2_t, derive_child_keys, bool,
 			case ENCR_AES_GCM_ICV16:
 			case ENCR_AES_CTR:
 			case ENCR_NULL_AUTH_AES_GMAC:
+			case ENCR_CHACHA20_POLY1305:
 				enc_size += 4;
 				break;
 			default: