File allow-tls1.3-only.patch of Package dovecot23

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File allow-tls1.3-only.patch of Package dovecot23

Index: dovecot-2.3.10.1/src/config/old-set-parser.c
===================================================================
--- dovecot-2.3.10.1.orig/src/config/old-set-parser.c
+++ dovecot-2.3.10.1/src/config/old-set-parser.c
@@ -172,6 +172,9 @@ static int ssl_protocols_to_min_protocol
 {
 	static const char *protocol_versions[] = {
 		"SSLv3", "TLSv1", "TLSv1.1", "TLSv1.2",
+#ifdef TLS1_3_VERSION
+    "TLSv1.3",
+#endif
 	};
 	/* Array where -1 = disable, 0 = not found, 1 = enable */
 	int protos[N_ELEMENTS(protocol_versions)];
Index: dovecot-2.3.10.1/src/lib-ssl-iostream/iostream-openssl-common.c
===================================================================
--- dovecot-2.3.10.1.orig/src/lib-ssl-iostream/iostream-openssl-common.c
+++ dovecot-2.3.10.1/src/lib-ssl-iostream/iostream-openssl-common.c
@@ -9,6 +9,16 @@
 #include <openssl/err.h>
 #include <arpa/inet.h>
 
+/*
+ * SSL_TXT_TLSV1_3 is not defined in the openssl headers up to 1.1.1g.
+ * Define it here as no other part of the code uses those defines.
+ *
+ * https://github.com/openssl/openssl/pull/6720
+ */
+#ifndef SSL_TXT_TLSV1_3
+#define SSL_TXT_TLSV1_3 "TLSv1.3"
+#endif
+
 /* openssl_min_protocol_to_options() scans this array for name and returns
    version and opt. opt is used with SSL_set_options() and version is used with
    SSL_set_min_proto_version(). Using either method should enable the same
@@ -23,6 +33,10 @@ static const struct {
 	{ SSL_TXT_TLSV1_1, TLS1_1_VERSION, SSL_OP_NO_SSLv3 | SSL_OP_NO_TLSv1 },
 	{ SSL_TXT_TLSV1_2, TLS1_2_VERSION,
 		SSL_OP_NO_SSLv3 | SSL_OP_NO_TLSv1 | SSL_OP_NO_TLSv1_1 },
+#ifdef TLS1_3_VERSION
+	{ SSL_TXT_TLSV1_3, TLS1_3_VERSION,
+		SSL_OP_NO_SSLv3 | SSL_OP_NO_TLSv1 | SSL_OP_NO_TLSv1_1 | SSL_OP_NO_TLSv1_2 },
+#endif
 };
 int openssl_min_protocol_to_options(const char *min_protocol, long *opt_r,
 				    int *version_r)

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File allow-tls1.3-only.patch of Package dovecot23

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