--- /dev/null
+From e344d0b5860560ffa59415ea4028ba7760b2a773 Mon Sep 17 00:00:00 2001
+From: Matt Caswell <matt@openssl.org>
+Date: Tue, 4 Jun 2024 15:47:32 +0100
+Subject: [PATCH 06/10] Allow an empty NPN/ALPN protocol list in the tests
+
+Allow ourselves to configure an empty NPN/ALPN protocol list and test what
+happens if we do.
+
+Follow on from CVE-2024-5535
+
+Reviewed-by: Neil Horman <nhorman@openssl.org>
+Reviewed-by: Tomas Mraz <tomas@openssl.org>
+(Merged from https://github.com/openssl/openssl/pull/24717)
+
+Upstream-Status: Backport from [https://github.com/openssl/openssl/commit/7ea1f6a85b299b976cb3f756b2a7f0153f31b2b6]
+CVE: CVE-2024-5535
+Signed-off-by: Siddharth Doshi <sdoshi@mvista.com>
+---
+ test/helpers/handshake.c | 6 +
+ test/ssl-tests/08-npn.cnf | 553 +++++++++++++++++++---------------
+ test/ssl-tests/08-npn.cnf.in | 35 +++
+ test/ssl-tests/09-alpn.cnf | 66 +++-
+ test/ssl-tests/09-alpn.cnf.in | 33 ++
+ 5 files changed, 449 insertions(+), 244 deletions(-)
+
+diff --git a/test/helpers/handshake.c b/test/helpers/handshake.c
+index ae2ad59..b66b2f5 100644
+--- a/test/helpers/handshake.c
++++ b/test/helpers/handshake.c
+@@ -444,6 +444,12 @@ static int parse_protos(const char *protos, unsigned char **out, size_t *outlen)
+
+ len = strlen(protos);
+
++ if (len == 0) {
++ *out = NULL;
++ *outlen = 0;
++ return 1;
++ }
++
+ /* Should never have reuse. */
+ if (!TEST_ptr_null(*out)
+ /* Test values are small, so we omit length limit checks. */
+diff --git a/test/ssl-tests/08-npn.cnf b/test/ssl-tests/08-npn.cnf
+index f38b3f6..1931d02 100644
+--- a/test/ssl-tests/08-npn.cnf
++++ b/test/ssl-tests/08-npn.cnf
+@@ -1,6 +1,6 @@
+ # Generated with generate_ssl_tests.pl
+
+-num_tests = 20
++num_tests = 22
+
+ test-0 = 0-npn-simple
+ test-1 = 1-npn-client-finds-match
+@@ -8,20 +8,22 @@ test-2 = 2-npn-client-honours-server-pref
+ test-3 = 3-npn-client-first-pref-on-mismatch
+ test-4 = 4-npn-no-server-support
+ test-5 = 5-npn-no-client-support
+-test-6 = 6-npn-with-sni-no-context-switch
+-test-7 = 7-npn-with-sni-context-switch
+-test-8 = 8-npn-selected-sni-server-supports-npn
+-test-9 = 9-npn-selected-sni-server-does-not-support-npn
+-test-10 = 10-alpn-preferred-over-npn
+-test-11 = 11-sni-npn-preferred-over-alpn
+-test-12 = 12-npn-simple-resumption
+-test-13 = 13-npn-server-switch-resumption
+-test-14 = 14-npn-client-switch-resumption
+-test-15 = 15-npn-client-first-pref-on-mismatch-resumption
+-test-16 = 16-npn-no-server-support-resumption
+-test-17 = 17-npn-no-client-support-resumption
+-test-18 = 18-alpn-preferred-over-npn-resumption
+-test-19 = 19-npn-used-if-alpn-not-supported-resumption
++test-6 = 6-npn-empty-client-list
++test-7 = 7-npn-empty-server-list
++test-8 = 8-npn-with-sni-no-context-switch
++test-9 = 9-npn-with-sni-context-switch
++test-10 = 10-npn-selected-sni-server-supports-npn
++test-11 = 11-npn-selected-sni-server-does-not-support-npn
++test-12 = 12-alpn-preferred-over-npn
++test-13 = 13-sni-npn-preferred-over-alpn
++test-14 = 14-npn-simple-resumption
++test-15 = 15-npn-server-switch-resumption
++test-16 = 16-npn-client-switch-resumption
++test-17 = 17-npn-client-first-pref-on-mismatch-resumption
++test-18 = 18-npn-no-server-support-resumption
++test-19 = 19-npn-no-client-support-resumption
++test-20 = 20-alpn-preferred-over-npn-resumption
++test-21 = 21-npn-used-if-alpn-not-supported-resumption
+ # ===========================================================
+
+ [0-npn-simple]
+@@ -206,253 +208,318 @@ NPNProtocols = foo
+
+ # ===========================================================
+
+-[6-npn-with-sni-no-context-switch]
+-ssl_conf = 6-npn-with-sni-no-context-switch-ssl
++[6-npn-empty-client-list]
++ssl_conf = 6-npn-empty-client-list-ssl
+
+-[6-npn-with-sni-no-context-switch-ssl]
+-server = 6-npn-with-sni-no-context-switch-server
+-client = 6-npn-with-sni-no-context-switch-client
+-server2 = 6-npn-with-sni-no-context-switch-server2
++[6-npn-empty-client-list-ssl]
++server = 6-npn-empty-client-list-server
++client = 6-npn-empty-client-list-client
+
+-[6-npn-with-sni-no-context-switch-server]
++[6-npn-empty-client-list-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[6-npn-with-sni-no-context-switch-server2]
++[6-npn-empty-client-list-client]
++CipherString = DEFAULT
++MaxProtocol = TLSv1.2
++VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
++VerifyMode = Peer
++
++[test-6]
++ExpectedClientAlert = HandshakeFailure
++ExpectedResult = ClientFail
++server = 6-npn-empty-client-list-server-extra
++client = 6-npn-empty-client-list-client-extra
++
++[6-npn-empty-client-list-server-extra]
++NPNProtocols = foo
++
++[6-npn-empty-client-list-client-extra]
++NPNProtocols =
++
++
++# ===========================================================
++
++[7-npn-empty-server-list]
++ssl_conf = 7-npn-empty-server-list-ssl
++
++[7-npn-empty-server-list-ssl]
++server = 7-npn-empty-server-list-server
++client = 7-npn-empty-server-list-client
++
++[7-npn-empty-server-list-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[6-npn-with-sni-no-context-switch-client]
++[7-npn-empty-server-list-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-6]
++[test-7]
++ExpectedNPNProtocol = foo
++server = 7-npn-empty-server-list-server-extra
++client = 7-npn-empty-server-list-client-extra
++
++[7-npn-empty-server-list-server-extra]
++NPNProtocols =
++
++[7-npn-empty-server-list-client-extra]
++NPNProtocols = foo
++
++
++# ===========================================================
++
++[8-npn-with-sni-no-context-switch]
++ssl_conf = 8-npn-with-sni-no-context-switch-ssl
++
++[8-npn-with-sni-no-context-switch-ssl]
++server = 8-npn-with-sni-no-context-switch-server
++client = 8-npn-with-sni-no-context-switch-client
++server2 = 8-npn-with-sni-no-context-switch-server2
++
++[8-npn-with-sni-no-context-switch-server]
++Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
++CipherString = DEFAULT
++PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
++
++[8-npn-with-sni-no-context-switch-server2]
++Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
++CipherString = DEFAULT
++PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
++
++[8-npn-with-sni-no-context-switch-client]
++CipherString = DEFAULT
++MaxProtocol = TLSv1.2
++VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
++VerifyMode = Peer
++
++[test-8]
+ ExpectedNPNProtocol = foo
+ ExpectedServerName = server1
+-server = 6-npn-with-sni-no-context-switch-server-extra
+-server2 = 6-npn-with-sni-no-context-switch-server2-extra
+-client = 6-npn-with-sni-no-context-switch-client-extra
++server = 8-npn-with-sni-no-context-switch-server-extra
++server2 = 8-npn-with-sni-no-context-switch-server2-extra
++client = 8-npn-with-sni-no-context-switch-client-extra
+
+-[6-npn-with-sni-no-context-switch-server-extra]
++[8-npn-with-sni-no-context-switch-server-extra]
+ NPNProtocols = foo
+ ServerNameCallback = IgnoreMismatch
+
+-[6-npn-with-sni-no-context-switch-server2-extra]
++[8-npn-with-sni-no-context-switch-server2-extra]
+ NPNProtocols = bar
+
+-[6-npn-with-sni-no-context-switch-client-extra]
++[8-npn-with-sni-no-context-switch-client-extra]
+ NPNProtocols = foo,bar
+ ServerName = server1
+
+
+ # ===========================================================
+
+-[7-npn-with-sni-context-switch]
+-ssl_conf = 7-npn-with-sni-context-switch-ssl
++[9-npn-with-sni-context-switch]
++ssl_conf = 9-npn-with-sni-context-switch-ssl
+
+-[7-npn-with-sni-context-switch-ssl]
+-server = 7-npn-with-sni-context-switch-server
+-client = 7-npn-with-sni-context-switch-client
+-server2 = 7-npn-with-sni-context-switch-server2
++[9-npn-with-sni-context-switch-ssl]
++server = 9-npn-with-sni-context-switch-server
++client = 9-npn-with-sni-context-switch-client
++server2 = 9-npn-with-sni-context-switch-server2
+
+-[7-npn-with-sni-context-switch-server]
++[9-npn-with-sni-context-switch-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[7-npn-with-sni-context-switch-server2]
++[9-npn-with-sni-context-switch-server2]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[7-npn-with-sni-context-switch-client]
++[9-npn-with-sni-context-switch-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-7]
++[test-9]
+ ExpectedNPNProtocol = bar
+ ExpectedServerName = server2
+-server = 7-npn-with-sni-context-switch-server-extra
+-server2 = 7-npn-with-sni-context-switch-server2-extra
+-client = 7-npn-with-sni-context-switch-client-extra
++server = 9-npn-with-sni-context-switch-server-extra
++server2 = 9-npn-with-sni-context-switch-server2-extra
++client = 9-npn-with-sni-context-switch-client-extra
+
+-[7-npn-with-sni-context-switch-server-extra]
++[9-npn-with-sni-context-switch-server-extra]
+ NPNProtocols = foo
+ ServerNameCallback = IgnoreMismatch
+
+-[7-npn-with-sni-context-switch-server2-extra]
++[9-npn-with-sni-context-switch-server2-extra]
+ NPNProtocols = bar
+
+-[7-npn-with-sni-context-switch-client-extra]
++[9-npn-with-sni-context-switch-client-extra]
+ NPNProtocols = foo,bar
+ ServerName = server2
+
+
+ # ===========================================================
+
+-[8-npn-selected-sni-server-supports-npn]
+-ssl_conf = 8-npn-selected-sni-server-supports-npn-ssl
++[10-npn-selected-sni-server-supports-npn]
++ssl_conf = 10-npn-selected-sni-server-supports-npn-ssl
+
+-[8-npn-selected-sni-server-supports-npn-ssl]
+-server = 8-npn-selected-sni-server-supports-npn-server
+-client = 8-npn-selected-sni-server-supports-npn-client
+-server2 = 8-npn-selected-sni-server-supports-npn-server2
++[10-npn-selected-sni-server-supports-npn-ssl]
++server = 10-npn-selected-sni-server-supports-npn-server
++client = 10-npn-selected-sni-server-supports-npn-client
++server2 = 10-npn-selected-sni-server-supports-npn-server2
+
+-[8-npn-selected-sni-server-supports-npn-server]
++[10-npn-selected-sni-server-supports-npn-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[8-npn-selected-sni-server-supports-npn-server2]
++[10-npn-selected-sni-server-supports-npn-server2]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[8-npn-selected-sni-server-supports-npn-client]
++[10-npn-selected-sni-server-supports-npn-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-8]
++[test-10]
+ ExpectedNPNProtocol = bar
+ ExpectedServerName = server2
+-server = 8-npn-selected-sni-server-supports-npn-server-extra
+-server2 = 8-npn-selected-sni-server-supports-npn-server2-extra
+-client = 8-npn-selected-sni-server-supports-npn-client-extra
++server = 10-npn-selected-sni-server-supports-npn-server-extra
++server2 = 10-npn-selected-sni-server-supports-npn-server2-extra
++client = 10-npn-selected-sni-server-supports-npn-client-extra
+
+-[8-npn-selected-sni-server-supports-npn-server-extra]
++[10-npn-selected-sni-server-supports-npn-server-extra]
+ ServerNameCallback = IgnoreMismatch
+
+-[8-npn-selected-sni-server-supports-npn-server2-extra]
++[10-npn-selected-sni-server-supports-npn-server2-extra]
+ NPNProtocols = bar
+
+-[8-npn-selected-sni-server-supports-npn-client-extra]
++[10-npn-selected-sni-server-supports-npn-client-extra]
+ NPNProtocols = foo,bar
+ ServerName = server2
+
+
+ # ===========================================================
+
+-[9-npn-selected-sni-server-does-not-support-npn]
+-ssl_conf = 9-npn-selected-sni-server-does-not-support-npn-ssl
++[11-npn-selected-sni-server-does-not-support-npn]
++ssl_conf = 11-npn-selected-sni-server-does-not-support-npn-ssl
+
+-[9-npn-selected-sni-server-does-not-support-npn-ssl]
+-server = 9-npn-selected-sni-server-does-not-support-npn-server
+-client = 9-npn-selected-sni-server-does-not-support-npn-client
+-server2 = 9-npn-selected-sni-server-does-not-support-npn-server2
++[11-npn-selected-sni-server-does-not-support-npn-ssl]
++server = 11-npn-selected-sni-server-does-not-support-npn-server
++client = 11-npn-selected-sni-server-does-not-support-npn-client
++server2 = 11-npn-selected-sni-server-does-not-support-npn-server2
+
+-[9-npn-selected-sni-server-does-not-support-npn-server]
++[11-npn-selected-sni-server-does-not-support-npn-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[9-npn-selected-sni-server-does-not-support-npn-server2]
++[11-npn-selected-sni-server-does-not-support-npn-server2]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[9-npn-selected-sni-server-does-not-support-npn-client]
++[11-npn-selected-sni-server-does-not-support-npn-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-9]
++[test-11]
+ ExpectedServerName = server2
+-server = 9-npn-selected-sni-server-does-not-support-npn-server-extra
+-client = 9-npn-selected-sni-server-does-not-support-npn-client-extra
++server = 11-npn-selected-sni-server-does-not-support-npn-server-extra
++client = 11-npn-selected-sni-server-does-not-support-npn-client-extra
+
+-[9-npn-selected-sni-server-does-not-support-npn-server-extra]
++[11-npn-selected-sni-server-does-not-support-npn-server-extra]
+ NPNProtocols = bar
+ ServerNameCallback = IgnoreMismatch
+
+-[9-npn-selected-sni-server-does-not-support-npn-client-extra]
++[11-npn-selected-sni-server-does-not-support-npn-client-extra]
+ NPNProtocols = foo,bar
+ ServerName = server2
+
+
+ # ===========================================================
+
+-[10-alpn-preferred-over-npn]
+-ssl_conf = 10-alpn-preferred-over-npn-ssl
++[12-alpn-preferred-over-npn]
++ssl_conf = 12-alpn-preferred-over-npn-ssl
+
+-[10-alpn-preferred-over-npn-ssl]
+-server = 10-alpn-preferred-over-npn-server
+-client = 10-alpn-preferred-over-npn-client
++[12-alpn-preferred-over-npn-ssl]
++server = 12-alpn-preferred-over-npn-server
++client = 12-alpn-preferred-over-npn-client
+
+-[10-alpn-preferred-over-npn-server]
++[12-alpn-preferred-over-npn-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[10-alpn-preferred-over-npn-client]
++[12-alpn-preferred-over-npn-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-10]
++[test-12]
+ ExpectedALPNProtocol = foo
+-server = 10-alpn-preferred-over-npn-server-extra
+-client = 10-alpn-preferred-over-npn-client-extra
++server = 12-alpn-preferred-over-npn-server-extra
++client = 12-alpn-preferred-over-npn-client-extra
+
+-[10-alpn-preferred-over-npn-server-extra]
++[12-alpn-preferred-over-npn-server-extra]
+ ALPNProtocols = foo
+ NPNProtocols = bar
+
+-[10-alpn-preferred-over-npn-client-extra]
++[12-alpn-preferred-over-npn-client-extra]
+ ALPNProtocols = foo
+ NPNProtocols = bar
+
+
+ # ===========================================================
+
+-[11-sni-npn-preferred-over-alpn]
+-ssl_conf = 11-sni-npn-preferred-over-alpn-ssl
++[13-sni-npn-preferred-over-alpn]
++ssl_conf = 13-sni-npn-preferred-over-alpn-ssl
+
+-[11-sni-npn-preferred-over-alpn-ssl]
+-server = 11-sni-npn-preferred-over-alpn-server
+-client = 11-sni-npn-preferred-over-alpn-client
+-server2 = 11-sni-npn-preferred-over-alpn-server2
++[13-sni-npn-preferred-over-alpn-ssl]
++server = 13-sni-npn-preferred-over-alpn-server
++client = 13-sni-npn-preferred-over-alpn-client
++server2 = 13-sni-npn-preferred-over-alpn-server2
+
+-[11-sni-npn-preferred-over-alpn-server]
++[13-sni-npn-preferred-over-alpn-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[11-sni-npn-preferred-over-alpn-server2]
++[13-sni-npn-preferred-over-alpn-server2]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[11-sni-npn-preferred-over-alpn-client]
++[13-sni-npn-preferred-over-alpn-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-11]
++[test-13]
+ ExpectedNPNProtocol = bar
+ ExpectedServerName = server2
+-server = 11-sni-npn-preferred-over-alpn-server-extra
+-server2 = 11-sni-npn-preferred-over-alpn-server2-extra
+-client = 11-sni-npn-preferred-over-alpn-client-extra
++server = 13-sni-npn-preferred-over-alpn-server-extra
++server2 = 13-sni-npn-preferred-over-alpn-server2-extra
++client = 13-sni-npn-preferred-over-alpn-client-extra
+
+-[11-sni-npn-preferred-over-alpn-server-extra]
++[13-sni-npn-preferred-over-alpn-server-extra]
+ ALPNProtocols = foo
+ ServerNameCallback = IgnoreMismatch
+
+-[11-sni-npn-preferred-over-alpn-server2-extra]
++[13-sni-npn-preferred-over-alpn-server2-extra]
+ NPNProtocols = bar
+
+-[11-sni-npn-preferred-over-alpn-client-extra]
++[13-sni-npn-preferred-over-alpn-client-extra]
+ ALPNProtocols = foo
+ NPNProtocols = bar
+ ServerName = server2
+@@ -460,356 +527,356 @@ ServerName = server2
+
+ # ===========================================================
+
+-[12-npn-simple-resumption]
+-ssl_conf = 12-npn-simple-resumption-ssl
++[14-npn-simple-resumption]
++ssl_conf = 14-npn-simple-resumption-ssl
+
+-[12-npn-simple-resumption-ssl]
+-server = 12-npn-simple-resumption-server
+-client = 12-npn-simple-resumption-client
+-resume-server = 12-npn-simple-resumption-server
+-resume-client = 12-npn-simple-resumption-client
++[14-npn-simple-resumption-ssl]
++server = 14-npn-simple-resumption-server
++client = 14-npn-simple-resumption-client
++resume-server = 14-npn-simple-resumption-server
++resume-client = 14-npn-simple-resumption-client
+
+-[12-npn-simple-resumption-server]
++[14-npn-simple-resumption-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[12-npn-simple-resumption-client]
++[14-npn-simple-resumption-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-12]
++[test-14]
+ ExpectedNPNProtocol = foo
+ HandshakeMode = Resume
+ ResumptionExpected = Yes
+-server = 12-npn-simple-resumption-server-extra
+-resume-server = 12-npn-simple-resumption-server-extra
+-client = 12-npn-simple-resumption-client-extra
+-resume-client = 12-npn-simple-resumption-client-extra
++server = 14-npn-simple-resumption-server-extra
++resume-server = 14-npn-simple-resumption-server-extra
++client = 14-npn-simple-resumption-client-extra
++resume-client = 14-npn-simple-resumption-client-extra
+
+-[12-npn-simple-resumption-server-extra]
++[14-npn-simple-resumption-server-extra]
+ NPNProtocols = foo
+
+-[12-npn-simple-resumption-client-extra]
++[14-npn-simple-resumption-client-extra]
+ NPNProtocols = foo
+
+
+ # ===========================================================
+
+-[13-npn-server-switch-resumption]
+-ssl_conf = 13-npn-server-switch-resumption-ssl
++[15-npn-server-switch-resumption]
++ssl_conf = 15-npn-server-switch-resumption-ssl
+
+-[13-npn-server-switch-resumption-ssl]
+-server = 13-npn-server-switch-resumption-server
+-client = 13-npn-server-switch-resumption-client
+-resume-server = 13-npn-server-switch-resumption-resume-server
+-resume-client = 13-npn-server-switch-resumption-client
++[15-npn-server-switch-resumption-ssl]
++server = 15-npn-server-switch-resumption-server
++client = 15-npn-server-switch-resumption-client
++resume-server = 15-npn-server-switch-resumption-resume-server
++resume-client = 15-npn-server-switch-resumption-client
+
+-[13-npn-server-switch-resumption-server]
++[15-npn-server-switch-resumption-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[13-npn-server-switch-resumption-resume-server]
++[15-npn-server-switch-resumption-resume-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[13-npn-server-switch-resumption-client]
++[15-npn-server-switch-resumption-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-13]
++[test-15]
+ ExpectedNPNProtocol = baz
+ HandshakeMode = Resume
+ ResumptionExpected = Yes
+-server = 13-npn-server-switch-resumption-server-extra
+-resume-server = 13-npn-server-switch-resumption-resume-server-extra
+-client = 13-npn-server-switch-resumption-client-extra
+-resume-client = 13-npn-server-switch-resumption-client-extra
++server = 15-npn-server-switch-resumption-server-extra
++resume-server = 15-npn-server-switch-resumption-resume-server-extra
++client = 15-npn-server-switch-resumption-client-extra
++resume-client = 15-npn-server-switch-resumption-client-extra
+
+-[13-npn-server-switch-resumption-server-extra]
++[15-npn-server-switch-resumption-server-extra]
+ NPNProtocols = bar,foo
+
+-[13-npn-server-switch-resumption-resume-server-extra]
++[15-npn-server-switch-resumption-resume-server-extra]
+ NPNProtocols = baz,foo
+
+-[13-npn-server-switch-resumption-client-extra]
++[15-npn-server-switch-resumption-client-extra]
+ NPNProtocols = foo,bar,baz
+
+
+ # ===========================================================
+
+-[14-npn-client-switch-resumption]
+-ssl_conf = 14-npn-client-switch-resumption-ssl
++[16-npn-client-switch-resumption]
++ssl_conf = 16-npn-client-switch-resumption-ssl
+
+-[14-npn-client-switch-resumption-ssl]
+-server = 14-npn-client-switch-resumption-server
+-client = 14-npn-client-switch-resumption-client
+-resume-server = 14-npn-client-switch-resumption-server
+-resume-client = 14-npn-client-switch-resumption-resume-client
++[16-npn-client-switch-resumption-ssl]
++server = 16-npn-client-switch-resumption-server
++client = 16-npn-client-switch-resumption-client
++resume-server = 16-npn-client-switch-resumption-server
++resume-client = 16-npn-client-switch-resumption-resume-client
+
+-[14-npn-client-switch-resumption-server]
++[16-npn-client-switch-resumption-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[14-npn-client-switch-resumption-client]
++[16-npn-client-switch-resumption-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[14-npn-client-switch-resumption-resume-client]
++[16-npn-client-switch-resumption-resume-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-14]
++[test-16]
+ ExpectedNPNProtocol = bar
+ HandshakeMode = Resume
+ ResumptionExpected = Yes
+-server = 14-npn-client-switch-resumption-server-extra
+-resume-server = 14-npn-client-switch-resumption-server-extra
+-client = 14-npn-client-switch-resumption-client-extra
+-resume-client = 14-npn-client-switch-resumption-resume-client-extra
++server = 16-npn-client-switch-resumption-server-extra
++resume-server = 16-npn-client-switch-resumption-server-extra
++client = 16-npn-client-switch-resumption-client-extra
++resume-client = 16-npn-client-switch-resumption-resume-client-extra
+
+-[14-npn-client-switch-resumption-server-extra]
++[16-npn-client-switch-resumption-server-extra]
+ NPNProtocols = foo,bar,baz
+
+-[14-npn-client-switch-resumption-client-extra]
++[16-npn-client-switch-resumption-client-extra]
+ NPNProtocols = foo,baz
+
+-[14-npn-client-switch-resumption-resume-client-extra]
++[16-npn-client-switch-resumption-resume-client-extra]
+ NPNProtocols = bar,baz
+
+
+ # ===========================================================
+
+-[15-npn-client-first-pref-on-mismatch-resumption]
+-ssl_conf = 15-npn-client-first-pref-on-mismatch-resumption-ssl
++[17-npn-client-first-pref-on-mismatch-resumption]
++ssl_conf = 17-npn-client-first-pref-on-mismatch-resumption-ssl
+
+-[15-npn-client-first-pref-on-mismatch-resumption-ssl]
+-server = 15-npn-client-first-pref-on-mismatch-resumption-server
+-client = 15-npn-client-first-pref-on-mismatch-resumption-client
+-resume-server = 15-npn-client-first-pref-on-mismatch-resumption-resume-server
+-resume-client = 15-npn-client-first-pref-on-mismatch-resumption-client
++[17-npn-client-first-pref-on-mismatch-resumption-ssl]
++server = 17-npn-client-first-pref-on-mismatch-resumption-server
++client = 17-npn-client-first-pref-on-mismatch-resumption-client
++resume-server = 17-npn-client-first-pref-on-mismatch-resumption-resume-server
++resume-client = 17-npn-client-first-pref-on-mismatch-resumption-client
+
+-[15-npn-client-first-pref-on-mismatch-resumption-server]
++[17-npn-client-first-pref-on-mismatch-resumption-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[15-npn-client-first-pref-on-mismatch-resumption-resume-server]
++[17-npn-client-first-pref-on-mismatch-resumption-resume-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[15-npn-client-first-pref-on-mismatch-resumption-client]
++[17-npn-client-first-pref-on-mismatch-resumption-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-15]
++[test-17]
+ ExpectedNPNProtocol = foo
+ HandshakeMode = Resume
+ ResumptionExpected = Yes
+-server = 15-npn-client-first-pref-on-mismatch-resumption-server-extra
+-resume-server = 15-npn-client-first-pref-on-mismatch-resumption-resume-server-extra
+-client = 15-npn-client-first-pref-on-mismatch-resumption-client-extra
+-resume-client = 15-npn-client-first-pref-on-mismatch-resumption-client-extra
++server = 17-npn-client-first-pref-on-mismatch-resumption-server-extra
++resume-server = 17-npn-client-first-pref-on-mismatch-resumption-resume-server-extra
++client = 17-npn-client-first-pref-on-mismatch-resumption-client-extra
++resume-client = 17-npn-client-first-pref-on-mismatch-resumption-client-extra
+
+-[15-npn-client-first-pref-on-mismatch-resumption-server-extra]
++[17-npn-client-first-pref-on-mismatch-resumption-server-extra]
+ NPNProtocols = bar
+
+-[15-npn-client-first-pref-on-mismatch-resumption-resume-server-extra]
++[17-npn-client-first-pref-on-mismatch-resumption-resume-server-extra]
+ NPNProtocols = baz
+
+-[15-npn-client-first-pref-on-mismatch-resumption-client-extra]
++[17-npn-client-first-pref-on-mismatch-resumption-client-extra]
+ NPNProtocols = foo,bar
+
+
+ # ===========================================================
+
+-[16-npn-no-server-support-resumption]
+-ssl_conf = 16-npn-no-server-support-resumption-ssl
++[18-npn-no-server-support-resumption]
++ssl_conf = 18-npn-no-server-support-resumption-ssl
+
+-[16-npn-no-server-support-resumption-ssl]
+-server = 16-npn-no-server-support-resumption-server
+-client = 16-npn-no-server-support-resumption-client
+-resume-server = 16-npn-no-server-support-resumption-resume-server
+-resume-client = 16-npn-no-server-support-resumption-client
++[18-npn-no-server-support-resumption-ssl]
++server = 18-npn-no-server-support-resumption-server
++client = 18-npn-no-server-support-resumption-client
++resume-server = 18-npn-no-server-support-resumption-resume-server
++resume-client = 18-npn-no-server-support-resumption-client
+
+-[16-npn-no-server-support-resumption-server]
++[18-npn-no-server-support-resumption-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[16-npn-no-server-support-resumption-resume-server]
++[18-npn-no-server-support-resumption-resume-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[16-npn-no-server-support-resumption-client]
++[18-npn-no-server-support-resumption-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-16]
++[test-18]
+ HandshakeMode = Resume
+ ResumptionExpected = Yes
+-server = 16-npn-no-server-support-resumption-server-extra
+-client = 16-npn-no-server-support-resumption-client-extra
+-resume-client = 16-npn-no-server-support-resumption-client-extra
++server = 18-npn-no-server-support-resumption-server-extra
++client = 18-npn-no-server-support-resumption-client-extra
++resume-client = 18-npn-no-server-support-resumption-client-extra
+
+-[16-npn-no-server-support-resumption-server-extra]
++[18-npn-no-server-support-resumption-server-extra]
+ NPNProtocols = foo
+
+-[16-npn-no-server-support-resumption-client-extra]
++[18-npn-no-server-support-resumption-client-extra]
+ NPNProtocols = foo
+
+
+ # ===========================================================
+
+-[17-npn-no-client-support-resumption]
+-ssl_conf = 17-npn-no-client-support-resumption-ssl
++[19-npn-no-client-support-resumption]
++ssl_conf = 19-npn-no-client-support-resumption-ssl
+
+-[17-npn-no-client-support-resumption-ssl]
+-server = 17-npn-no-client-support-resumption-server
+-client = 17-npn-no-client-support-resumption-client
+-resume-server = 17-npn-no-client-support-resumption-server
+-resume-client = 17-npn-no-client-support-resumption-resume-client
++[19-npn-no-client-support-resumption-ssl]
++server = 19-npn-no-client-support-resumption-server
++client = 19-npn-no-client-support-resumption-client
++resume-server = 19-npn-no-client-support-resumption-server
++resume-client = 19-npn-no-client-support-resumption-resume-client
+
+-[17-npn-no-client-support-resumption-server]
++[19-npn-no-client-support-resumption-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[17-npn-no-client-support-resumption-client]
++[19-npn-no-client-support-resumption-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[17-npn-no-client-support-resumption-resume-client]
++[19-npn-no-client-support-resumption-resume-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-17]
++[test-19]
+ HandshakeMode = Resume
+ ResumptionExpected = Yes
+-server = 17-npn-no-client-support-resumption-server-extra
+-resume-server = 17-npn-no-client-support-resumption-server-extra
+-client = 17-npn-no-client-support-resumption-client-extra
++server = 19-npn-no-client-support-resumption-server-extra
++resume-server = 19-npn-no-client-support-resumption-server-extra
++client = 19-npn-no-client-support-resumption-client-extra
+
+-[17-npn-no-client-support-resumption-server-extra]
++[19-npn-no-client-support-resumption-server-extra]
+ NPNProtocols = foo
+
+-[17-npn-no-client-support-resumption-client-extra]
++[19-npn-no-client-support-resumption-client-extra]
+ NPNProtocols = foo
+
+
+ # ===========================================================
+
+-[18-alpn-preferred-over-npn-resumption]
+-ssl_conf = 18-alpn-preferred-over-npn-resumption-ssl
++[20-alpn-preferred-over-npn-resumption]
++ssl_conf = 20-alpn-preferred-over-npn-resumption-ssl
+
+-[18-alpn-preferred-over-npn-resumption-ssl]
+-server = 18-alpn-preferred-over-npn-resumption-server
+-client = 18-alpn-preferred-over-npn-resumption-client
+-resume-server = 18-alpn-preferred-over-npn-resumption-resume-server
+-resume-client = 18-alpn-preferred-over-npn-resumption-client
++[20-alpn-preferred-over-npn-resumption-ssl]
++server = 20-alpn-preferred-over-npn-resumption-server
++client = 20-alpn-preferred-over-npn-resumption-client
++resume-server = 20-alpn-preferred-over-npn-resumption-resume-server
++resume-client = 20-alpn-preferred-over-npn-resumption-client
+
+-[18-alpn-preferred-over-npn-resumption-server]
++[20-alpn-preferred-over-npn-resumption-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[18-alpn-preferred-over-npn-resumption-resume-server]
++[20-alpn-preferred-over-npn-resumption-resume-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[18-alpn-preferred-over-npn-resumption-client]
++[20-alpn-preferred-over-npn-resumption-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-18]
++[test-20]
+ ExpectedALPNProtocol = foo
+ HandshakeMode = Resume
+ ResumptionExpected = Yes
+-server = 18-alpn-preferred-over-npn-resumption-server-extra
+-resume-server = 18-alpn-preferred-over-npn-resumption-resume-server-extra
+-client = 18-alpn-preferred-over-npn-resumption-client-extra
+-resume-client = 18-alpn-preferred-over-npn-resumption-client-extra
++server = 20-alpn-preferred-over-npn-resumption-server-extra
++resume-server = 20-alpn-preferred-over-npn-resumption-resume-server-extra
++client = 20-alpn-preferred-over-npn-resumption-client-extra
++resume-client = 20-alpn-preferred-over-npn-resumption-client-extra
+
+-[18-alpn-preferred-over-npn-resumption-server-extra]
++[20-alpn-preferred-over-npn-resumption-server-extra]
+ NPNProtocols = bar
+
+-[18-alpn-preferred-over-npn-resumption-resume-server-extra]
++[20-alpn-preferred-over-npn-resumption-resume-server-extra]
+ ALPNProtocols = foo
+ NPNProtocols = baz
+
+-[18-alpn-preferred-over-npn-resumption-client-extra]
++[20-alpn-preferred-over-npn-resumption-client-extra]
+ ALPNProtocols = foo
+ NPNProtocols = bar,baz
+
+
+ # ===========================================================
+
+-[19-npn-used-if-alpn-not-supported-resumption]
+-ssl_conf = 19-npn-used-if-alpn-not-supported-resumption-ssl
++[21-npn-used-if-alpn-not-supported-resumption]
++ssl_conf = 21-npn-used-if-alpn-not-supported-resumption-ssl
+
+-[19-npn-used-if-alpn-not-supported-resumption-ssl]
+-server = 19-npn-used-if-alpn-not-supported-resumption-server
+-client = 19-npn-used-if-alpn-not-supported-resumption-client
+-resume-server = 19-npn-used-if-alpn-not-supported-resumption-resume-server
+-resume-client = 19-npn-used-if-alpn-not-supported-resumption-client
++[21-npn-used-if-alpn-not-supported-resumption-ssl]
++server = 21-npn-used-if-alpn-not-supported-resumption-server
++client = 21-npn-used-if-alpn-not-supported-resumption-client
++resume-server = 21-npn-used-if-alpn-not-supported-resumption-resume-server
++resume-client = 21-npn-used-if-alpn-not-supported-resumption-client
+
+-[19-npn-used-if-alpn-not-supported-resumption-server]
++[21-npn-used-if-alpn-not-supported-resumption-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[19-npn-used-if-alpn-not-supported-resumption-resume-server]
++[21-npn-used-if-alpn-not-supported-resumption-resume-server]
+ Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
+ CipherString = DEFAULT
+ PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
+
+-[19-npn-used-if-alpn-not-supported-resumption-client]
++[21-npn-used-if-alpn-not-supported-resumption-client]
+ CipherString = DEFAULT
+ MaxProtocol = TLSv1.2
+ VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
+ VerifyMode = Peer
+
+-[test-19]
++[test-21]
+ ExpectedNPNProtocol = baz
+ HandshakeMode = Resume
+ ResumptionExpected = Yes
+-server = 19-npn-used-if-alpn-not-supported-resumption-server-extra
+-resume-server = 19-npn-used-if-alpn-not-supported-resumption-resume-server-extra
+-client = 19-npn-used-if-alpn-not-supported-resumption-client-extra
+-resume-client = 19-npn-used-if-alpn-not-supported-resumption-client-extra
++server = 21-npn-used-if-alpn-not-supported-resumption-server-extra
++resume-server = 21-npn-used-if-alpn-not-supported-resumption-resume-server-extra
++client = 21-npn-used-if-alpn-not-supported-resumption-client-extra
++resume-client = 21-npn-used-if-alpn-not-supported-resumption-client-extra
+
+-[19-npn-used-if-alpn-not-supported-resumption-server-extra]
++[21-npn-used-if-alpn-not-supported-resumption-server-extra]
+ ALPNProtocols = foo
+ NPNProtocols = bar
+
+-[19-npn-used-if-alpn-not-supported-resumption-resume-server-extra]
++[21-npn-used-if-alpn-not-supported-resumption-resume-server-extra]
+ NPNProtocols = baz
+
+-[19-npn-used-if-alpn-not-supported-resumption-client-extra]
++[21-npn-used-if-alpn-not-supported-resumption-client-extra]
+ ALPNProtocols = foo
+ NPNProtocols = bar,baz
+
+diff --git a/test/ssl-tests/08-npn.cnf.in b/test/ssl-tests/08-npn.cnf.in
+index 30783e4..1dc2704 100644
+--- a/test/ssl-tests/08-npn.cnf.in
++++ b/test/ssl-tests/08-npn.cnf.in
+@@ -110,6 +110,41 @@ our @tests = (
+ "ExpectedNPNProtocol" => undef,
+ },
+ },
++ {
++ name => "npn-empty-client-list",
++ server => {
++ extra => {
++ "NPNProtocols" => "foo",
++ },
++ },
++ client => {
++ extra => {
++ "NPNProtocols" => "",
++ },
++ "MaxProtocol" => "TLSv1.2"
++ },
++ test => {
++ "ExpectedResult" => "ClientFail",
++ "ExpectedClientAlert" => "HandshakeFailure"
++ },
++ },
++ {
++ name => "npn-empty-server-list",
++ server => {
++ extra => {
++ "NPNProtocols" => "",
++ },
++ },
++ client => {
++ extra => {
++ "NPNProtocols" => "foo",
++ },
++ "MaxProtocol" => "TLSv1.2"
++ },
++ test => {
++ "ExpectedNPNProtocol" => "foo"
++ },
++ },
+ {
+ name => "npn-with-sni-no-context-switch",
+ server => {
+diff --git a/test/ssl-tests/09-alpn.cnf b/test/ssl-tests/09-alpn.cnf
+index e7e6cb9..dd66873 100644
+--- a/test/ssl-tests/09-alpn.cnf
++++ b/test/ssl-tests/09-alpn.cnf
+@@ -1,6 +1,6 @@
+ # Generated with generate_ssl_tests.pl
+
+-num_tests = 16
++num_tests = 18
+
+ test-0 = 0-alpn-simple
+ test-1 = 1-alpn-server-finds-match
+@@ -18,6 +18,8 @@ test-12 = 12-alpn-client-switch-resumption
+ test-13 = 13-alpn-alert-on-mismatch-resumption
+ test-14 = 14-alpn-no-server-support-resumption
+ test-15 = 15-alpn-no-client-support-resumption
++test-16 = 16-alpn-empty-client-list
++test-17 = 17-alpn-empty-server-list
+ # ===========================================================
+
+ [0-alpn-simple]
+@@ -617,3 +619,65 @@ ALPNProtocols = foo
+ ALPNProtocols = foo
+
+
++# ===========================================================
++
++[16-alpn-empty-client-list]
++ssl_conf = 16-alpn-empty-client-list-ssl
++
++[16-alpn-empty-client-list-ssl]
++server = 16-alpn-empty-client-list-server
++client = 16-alpn-empty-client-list-client
++
++[16-alpn-empty-client-list-server]
++Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
++CipherString = DEFAULT
++PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
++
++[16-alpn-empty-client-list-client]
++CipherString = DEFAULT
++VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
++VerifyMode = Peer
++
++[test-16]
++server = 16-alpn-empty-client-list-server-extra
++client = 16-alpn-empty-client-list-client-extra
++
++[16-alpn-empty-client-list-server-extra]
++ALPNProtocols = foo
++
++[16-alpn-empty-client-list-client-extra]
++ALPNProtocols =
++
++
++# ===========================================================
++
++[17-alpn-empty-server-list]
++ssl_conf = 17-alpn-empty-server-list-ssl
++
++[17-alpn-empty-server-list-ssl]
++server = 17-alpn-empty-server-list-server
++client = 17-alpn-empty-server-list-client
++
++[17-alpn-empty-server-list-server]
++Certificate = ${ENV::TEST_CERTS_DIR}/servercert.pem
++CipherString = DEFAULT
++PrivateKey = ${ENV::TEST_CERTS_DIR}/serverkey.pem
++
++[17-alpn-empty-server-list-client]
++CipherString = DEFAULT
++VerifyCAFile = ${ENV::TEST_CERTS_DIR}/rootcert.pem
++VerifyMode = Peer
++
++[test-17]
++ExpectedResult = ServerFail
++ExpectedServerAlert = NoApplicationProtocol
++server = 17-alpn-empty-server-list-server-extra
++client = 17-alpn-empty-server-list-client-extra
++
++[17-alpn-empty-server-list-server-extra]
++ALPNProtocols =
++
++[17-alpn-empty-server-list-client-extra]
++ALPNProtocols = foo
++
++
+diff --git a/test/ssl-tests/09-alpn.cnf.in b/test/ssl-tests/09-alpn.cnf.in
+index 8133075..322b709 100644
+--- a/test/ssl-tests/09-alpn.cnf.in
++++ b/test/ssl-tests/09-alpn.cnf.in
+@@ -322,4 +322,37 @@ our @tests = (
+ "ExpectedALPNProtocol" => undef,
+ },
+ },
++ {
++ name => "alpn-empty-client-list",
++ server => {
++ extra => {
++ "ALPNProtocols" => "foo",
++ },
++ },
++ client => {
++ extra => {
++ "ALPNProtocols" => "",
++ },
++ },
++ test => {
++ "ExpectedALPNProtocol" => undef,
++ },
++ },
++ {
++ name => "alpn-empty-server-list",
++ server => {
++ extra => {
++ "ALPNProtocols" => "",
++ },
++ },
++ client => {
++ extra => {
++ "ALPNProtocols" => "foo",
++ },
++ },
++ test => {
++ "ExpectedResult" => "ServerFail",
++ "ExpectedServerAlert" => "NoApplicationProtocol",
++ },
++ },
+ );
+--
+2.44.0
+