openvpn: update to 2.4_rc2

OpenVPN 2.4 builds with mbedTLS 2.x, rename openvpn-polarssl
variant to openvpn-mbedtls.

Some feature highlights:
* Data channel cipher negotiation
* AEAD cipher support for data channel encryption (currently only
* AES-GCM)
* ECDH key exchange for control channel
* LZ4 compression support

See https://github.com/OpenVPN/openvpn/blob/master/Changes.rst
for additional change notes.

Signed-off-by: Magnus Kroken <mkroken@gmail.com>

1 files changed, 0 insertions, 33 deletions

diff --git a/package/network/services/openvpn/patches/101-backport_upstream_polarssl_debug_call.patch b/package/network/services/openvpn/patches/101-backport_upstream_polarssl_debug_call.patch
deleted file mode 100644
index 2155a4c79b..0000000000
--- a/package/network/services/openvpn/patches/101-backport_upstream_polarssl_debug_call.patch
+++ /dev/null
@@ -1,33 +0,0 @@
-openvpn: fix build without POLARSSL_DEBUG_C
-
-Backport of upstream master commit
-b63f98633dbe2ca92cd43fc6f8597ab283a600bf.
-
-Signed-off-by: Magnus Kroken <mkroken@gmail.com>
-
-From b63f98633dbe2ca92cd43fc6f8597ab283a600bf Mon Sep 17 00:00:00 2001
-From: Steffan Karger <steffan@karger.me>
-Date: Tue, 14 Jun 2016 22:00:03 +0200
-Subject: [PATCH] mbedtls: don't set debug threshold if compiled without
- MBEDTLS_DEBUG_C
-
-For targets with space constraints, one might want to compile mbed TLS
-without MBEDTLS_DEBUG_C defined, to save some tens of kilobytes.  Make
-sure OpenVPN still compiles if that is the case.
-
-Signed-off-by: Steffan Karger <steffan@karger.me>
-Acked-by: Gert Doering <gert@greenie.muc.de>
-Message-Id: <1465934403-22226-1-git-send-email-steffan@karger.me>
-URL: http://article.gmane.org/gmane.network.openvpn.devel/11922
-Signed-off-by: Gert Doering <gert@greenie.muc.de>
---- a/src/openvpn/ssl_polarssl.c
-+++ b/src/openvpn/ssl_polarssl.c
-@@ -747,7 +747,9 @@ void key_state_ssl_init(struct key_state
-   if (polar_ok(ssl_init(ks_ssl->ctx)))
-     {
-       /* Initialise SSL context */
-+      #ifdef POLARSSL_DEBUG_C
-       debug_set_threshold(3);
-+      #endif
-       ssl_set_dbg (ks_ssl->ctx, my_debug, NULL);
-       ssl_set_endpoint (ks_ssl->ctx, ssl_ctx->endpoint);