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43 lines
1.3 KiB
Diff
43 lines
1.3 KiB
Diff
From 629baad8f89af261445a2ace03694601f8e476f9 Mon Sep 17 00:00:00 2001
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From: Steffan Karger <steffan@karger.me>
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Date: Fri, 13 May 2016 08:54:52 +0200
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Subject: [PATCH] Fix polarssl / mbedtls builds
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Commit 8a399cd3 hardened the OpenSSL default cipher list,
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but also introduced a change in shared code that causes
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polarssl / mbedtls builds to break when no --tls-cipher is
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specified.
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This fix is backported code from the master branch.
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Signed-off-by: Steffan Karger <steffan@karger.me>
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Acked-by: Gert Doering <gert@greenie.muc.de>
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Message-Id: <1463122492-701-1-git-send-email-steffan@karger.me>
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URL: http://article.gmane.org/gmane.network.openvpn.devel/11647
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Signed-off-by: Gert Doering <gert@greenie.muc.de>
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---
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src/openvpn/ssl_polarssl.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/src/openvpn/ssl_polarssl.c b/src/openvpn/ssl_polarssl.c
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index 1f58369..9263698 100644
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--- a/src/openvpn/ssl_polarssl.c
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+++ b/src/openvpn/ssl_polarssl.c
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@@ -176,7 +176,12 @@ tls_ctx_restrict_ciphers(struct tls_root_ctx *ctx, const char *ciphers)
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{
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char *tmp_ciphers, *tmp_ciphers_orig, *token;
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int i, cipher_count;
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- int ciphers_len = strlen (ciphers);
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+ int ciphers_len;
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+
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+ if (NULL == ciphers)
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+ return; /* Nothing to do */
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+
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+ ciphers_len = strlen (ciphers);
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ASSERT (NULL != ctx);
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ASSERT (0 != ciphers_len);
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--
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2.8.1
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