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-rw-r--r--modules/http2/h2_protocol.c485
1 files changed, 485 insertions, 0 deletions
diff --git a/modules/http2/h2_protocol.c b/modules/http2/h2_protocol.c
new file mode 100644
index 0000000..874753e
--- /dev/null
+++ b/modules/http2/h2_protocol.c
@@ -0,0 +1,485 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <assert.h>
+
+#include <apr_strings.h>
+#include <apr_optional.h>
+#include <apr_optional_hooks.h>
+
+#include <httpd.h>
+#include <http_core.h>
+#include <http_config.h>
+#include <http_connection.h>
+#include <http_protocol.h>
+#include <http_request.h>
+#include <http_ssl.h>
+#include <http_log.h>
+
+#include "mod_http2.h"
+#include "h2_private.h"
+
+#include "h2_bucket_beam.h"
+#include "h2_stream.h"
+#include "h2_c2.h"
+#include "h2_config.h"
+#include "h2_conn_ctx.h"
+#include "h2_c1.h"
+#include "h2_request.h"
+#include "h2_headers.h"
+#include "h2_session.h"
+#include "h2_util.h"
+#include "h2_protocol.h"
+#include "mod_http2.h"
+
+const char *h2_protocol_ids_tls[] = {
+ "h2", NULL
+};
+
+const char *h2_protocol_ids_clear[] = {
+ "h2c", NULL
+};
+
+const char *H2_MAGIC_TOKEN = "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n";
+
+/*******************************************************************************
+ * HTTP/2 error stuff
+ */
+static const char *h2_err_descr[] = {
+ "no error", /* 0x0 */
+ "protocol error",
+ "internal error",
+ "flow control error",
+ "settings timeout",
+ "stream closed", /* 0x5 */
+ "frame size error",
+ "refused stream",
+ "cancel",
+ "compression error",
+ "connect error", /* 0xa */
+ "enhance your calm",
+ "inadequate security",
+ "http/1.1 required",
+};
+
+const char *h2_protocol_err_description(unsigned int h2_error)
+{
+ if (h2_error < (sizeof(h2_err_descr)/sizeof(h2_err_descr[0]))) {
+ return h2_err_descr[h2_error];
+ }
+ return "unknown http/2 error code";
+}
+
+/*******************************************************************************
+ * Check connection security requirements of RFC 7540
+ */
+
+/*
+ * Black Listed Ciphers from RFC 7549 Appendix A
+ *
+ */
+static const char *RFC7540_names[] = {
+ /* ciphers with NULL encrpytion */
+ "NULL-MD5", /* TLS_NULL_WITH_NULL_NULL */
+ /* same */ /* TLS_RSA_WITH_NULL_MD5 */
+ "NULL-SHA", /* TLS_RSA_WITH_NULL_SHA */
+ "NULL-SHA256", /* TLS_RSA_WITH_NULL_SHA256 */
+ "PSK-NULL-SHA", /* TLS_PSK_WITH_NULL_SHA */
+ "DHE-PSK-NULL-SHA", /* TLS_DHE_PSK_WITH_NULL_SHA */
+ "RSA-PSK-NULL-SHA", /* TLS_RSA_PSK_WITH_NULL_SHA */
+ "PSK-NULL-SHA256", /* TLS_PSK_WITH_NULL_SHA256 */
+ "PSK-NULL-SHA384", /* TLS_PSK_WITH_NULL_SHA384 */
+ "DHE-PSK-NULL-SHA256", /* TLS_DHE_PSK_WITH_NULL_SHA256 */
+ "DHE-PSK-NULL-SHA384", /* TLS_DHE_PSK_WITH_NULL_SHA384 */
+ "RSA-PSK-NULL-SHA256", /* TLS_RSA_PSK_WITH_NULL_SHA256 */
+ "RSA-PSK-NULL-SHA384", /* TLS_RSA_PSK_WITH_NULL_SHA384 */
+ "ECDH-ECDSA-NULL-SHA", /* TLS_ECDH_ECDSA_WITH_NULL_SHA */
+ "ECDHE-ECDSA-NULL-SHA", /* TLS_ECDHE_ECDSA_WITH_NULL_SHA */
+ "ECDH-RSA-NULL-SHA", /* TLS_ECDH_RSA_WITH_NULL_SHA */
+ "ECDHE-RSA-NULL-SHA", /* TLS_ECDHE_RSA_WITH_NULL_SHA */
+ "AECDH-NULL-SHA", /* TLS_ECDH_anon_WITH_NULL_SHA */
+ "ECDHE-PSK-NULL-SHA", /* TLS_ECDHE_PSK_WITH_NULL_SHA */
+ "ECDHE-PSK-NULL-SHA256", /* TLS_ECDHE_PSK_WITH_NULL_SHA256 */
+ "ECDHE-PSK-NULL-SHA384", /* TLS_ECDHE_PSK_WITH_NULL_SHA384 */
+
+ /* DES/3DES ciphers */
+ "PSK-3DES-EDE-CBC-SHA", /* TLS_PSK_WITH_3DES_EDE_CBC_SHA */
+ "DHE-PSK-3DES-EDE-CBC-SHA", /* TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA */
+ "RSA-PSK-3DES-EDE-CBC-SHA", /* TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA */
+ "ECDH-ECDSA-DES-CBC3-SHA", /* TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA */
+ "ECDHE-ECDSA-DES-CBC3-SHA", /* TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA */
+ "ECDH-RSA-DES-CBC3-SHA", /* TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA */
+ "ECDHE-RSA-DES-CBC3-SHA", /* TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA */
+ "AECDH-DES-CBC3-SHA", /* TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA */
+ "SRP-3DES-EDE-CBC-SHA", /* TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA */
+ "SRP-RSA-3DES-EDE-CBC-SHA", /* TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA */
+ "SRP-DSS-3DES-EDE-CBC-SHA", /* TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA */
+ "ECDHE-PSK-3DES-EDE-CBC-SHA", /* TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA */
+ "DES-CBC-SHA", /* TLS_RSA_WITH_DES_CBC_SHA */
+ "DES-CBC3-SHA", /* TLS_RSA_WITH_3DES_EDE_CBC_SHA */
+ "DHE-DSS-DES-CBC3-SHA", /* TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA */
+ "DHE-RSA-DES-CBC-SHA", /* TLS_DHE_RSA_WITH_DES_CBC_SHA */
+ "DHE-RSA-DES-CBC3-SHA", /* TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA */
+ "ADH-DES-CBC-SHA", /* TLS_DH_anon_WITH_DES_CBC_SHA */
+ "ADH-DES-CBC3-SHA", /* TLS_DH_anon_WITH_3DES_EDE_CBC_SHA */
+ "EXP-DH-DSS-DES-CBC-SHA", /* TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA */
+ "DH-DSS-DES-CBC-SHA", /* TLS_DH_DSS_WITH_DES_CBC_SHA */
+ "DH-DSS-DES-CBC3-SHA", /* TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA */
+ "EXP-DH-RSA-DES-CBC-SHA", /* TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA */
+ "DH-RSA-DES-CBC-SHA", /* TLS_DH_RSA_WITH_DES_CBC_SHA */
+ "DH-RSA-DES-CBC3-SHA", /* TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA */
+
+ /* blacklisted EXPORT ciphers */
+ "EXP-RC4-MD5", /* TLS_RSA_EXPORT_WITH_RC4_40_MD5 */
+ "EXP-RC2-CBC-MD5", /* TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 */
+ "EXP-DES-CBC-SHA", /* TLS_RSA_EXPORT_WITH_DES40_CBC_SHA */
+ "EXP-DHE-DSS-DES-CBC-SHA", /* TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA */
+ "EXP-DHE-RSA-DES-CBC-SHA", /* TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA */
+ "EXP-ADH-DES-CBC-SHA", /* TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA */
+ "EXP-ADH-RC4-MD5", /* TLS_DH_anon_EXPORT_WITH_RC4_40_MD5 */
+
+ /* blacklisted RC4 encryption */
+ "RC4-MD5", /* TLS_RSA_WITH_RC4_128_MD5 */
+ "RC4-SHA", /* TLS_RSA_WITH_RC4_128_SHA */
+ "ADH-RC4-MD5", /* TLS_DH_anon_WITH_RC4_128_MD5 */
+ "KRB5-RC4-SHA", /* TLS_KRB5_WITH_RC4_128_SHA */
+ "KRB5-RC4-MD5", /* TLS_KRB5_WITH_RC4_128_MD5 */
+ "EXP-KRB5-RC4-SHA", /* TLS_KRB5_EXPORT_WITH_RC4_40_SHA */
+ "EXP-KRB5-RC4-MD5", /* TLS_KRB5_EXPORT_WITH_RC4_40_MD5 */
+ "PSK-RC4-SHA", /* TLS_PSK_WITH_RC4_128_SHA */
+ "DHE-PSK-RC4-SHA", /* TLS_DHE_PSK_WITH_RC4_128_SHA */
+ "RSA-PSK-RC4-SHA", /* TLS_RSA_PSK_WITH_RC4_128_SHA */
+ "ECDH-ECDSA-RC4-SHA", /* TLS_ECDH_ECDSA_WITH_RC4_128_SHA */
+ "ECDHE-ECDSA-RC4-SHA", /* TLS_ECDHE_ECDSA_WITH_RC4_128_SHA */
+ "ECDH-RSA-RC4-SHA", /* TLS_ECDH_RSA_WITH_RC4_128_SHA */
+ "ECDHE-RSA-RC4-SHA", /* TLS_ECDHE_RSA_WITH_RC4_128_SHA */
+ "AECDH-RC4-SHA", /* TLS_ECDH_anon_WITH_RC4_128_SHA */
+ "ECDHE-PSK-RC4-SHA", /* TLS_ECDHE_PSK_WITH_RC4_128_SHA */
+
+ /* blacklisted AES128 encrpytion ciphers */
+ "AES128-SHA256", /* TLS_RSA_WITH_AES_128_CBC_SHA */
+ "DH-DSS-AES128-SHA", /* TLS_DH_DSS_WITH_AES_128_CBC_SHA */
+ "DH-RSA-AES128-SHA", /* TLS_DH_RSA_WITH_AES_128_CBC_SHA */
+ "DHE-DSS-AES128-SHA", /* TLS_DHE_DSS_WITH_AES_128_CBC_SHA */
+ "DHE-RSA-AES128-SHA", /* TLS_DHE_RSA_WITH_AES_128_CBC_SHA */
+ "ADH-AES128-SHA", /* TLS_DH_anon_WITH_AES_128_CBC_SHA */
+ "AES128-SHA256", /* TLS_RSA_WITH_AES_128_CBC_SHA256 */
+ "DH-DSS-AES128-SHA256", /* TLS_DH_DSS_WITH_AES_128_CBC_SHA256 */
+ "DH-RSA-AES128-SHA256", /* TLS_DH_RSA_WITH_AES_128_CBC_SHA256 */
+ "DHE-DSS-AES128-SHA256", /* TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 */
+ "DHE-RSA-AES128-SHA256", /* TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 */
+ "ECDH-ECDSA-AES128-SHA", /* TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA */
+ "ECDHE-ECDSA-AES128-SHA", /* TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA */
+ "ECDH-RSA-AES128-SHA", /* TLS_ECDH_RSA_WITH_AES_128_CBC_SHA */
+ "ECDHE-RSA-AES128-SHA", /* TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA */
+ "AECDH-AES128-SHA", /* TLS_ECDH_anon_WITH_AES_128_CBC_SHA */
+ "ECDHE-ECDSA-AES128-SHA256", /* TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 */
+ "ECDH-ECDSA-AES128-SHA256", /* TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 */
+ "ECDHE-RSA-AES128-SHA256", /* TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 */
+ "ECDH-RSA-AES128-SHA256", /* TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 */
+ "ADH-AES128-SHA256", /* TLS_DH_anon_WITH_AES_128_CBC_SHA256 */
+ "PSK-AES128-CBC-SHA", /* TLS_PSK_WITH_AES_128_CBC_SHA */
+ "DHE-PSK-AES128-CBC-SHA", /* TLS_DHE_PSK_WITH_AES_128_CBC_SHA */
+ "RSA-PSK-AES128-CBC-SHA", /* TLS_RSA_PSK_WITH_AES_128_CBC_SHA */
+ "PSK-AES128-CBC-SHA256", /* TLS_PSK_WITH_AES_128_CBC_SHA256 */
+ "DHE-PSK-AES128-CBC-SHA256", /* TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 */
+ "RSA-PSK-AES128-CBC-SHA256", /* TLS_RSA_PSK_WITH_AES_128_CBC_SHA256 */
+ "ECDHE-PSK-AES128-CBC-SHA", /* TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA */
+ "ECDHE-PSK-AES128-CBC-SHA256", /* TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 */
+ "AES128-CCM", /* TLS_RSA_WITH_AES_128_CCM */
+ "AES128-CCM8", /* TLS_RSA_WITH_AES_128_CCM_8 */
+ "PSK-AES128-CCM", /* TLS_PSK_WITH_AES_128_CCM */
+ "PSK-AES128-CCM8", /* TLS_PSK_WITH_AES_128_CCM_8 */
+ "AES128-GCM-SHA256", /* TLS_RSA_WITH_AES_128_GCM_SHA256 */
+ "DH-RSA-AES128-GCM-SHA256", /* TLS_DH_RSA_WITH_AES_128_GCM_SHA256 */
+ "DH-DSS-AES128-GCM-SHA256", /* TLS_DH_DSS_WITH_AES_128_GCM_SHA256 */
+ "ADH-AES128-GCM-SHA256", /* TLS_DH_anon_WITH_AES_128_GCM_SHA256 */
+ "PSK-AES128-GCM-SHA256", /* TLS_PSK_WITH_AES_128_GCM_SHA256 */
+ "RSA-PSK-AES128-GCM-SHA256", /* TLS_RSA_PSK_WITH_AES_128_GCM_SHA256 */
+ "ECDH-ECDSA-AES128-GCM-SHA256", /* TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 */
+ "ECDH-RSA-AES128-GCM-SHA256", /* TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 */
+ "SRP-AES-128-CBC-SHA", /* TLS_SRP_SHA_WITH_AES_128_CBC_SHA */
+ "SRP-RSA-AES-128-CBC-SHA", /* TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA */
+ "SRP-DSS-AES-128-CBC-SHA", /* TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA */
+
+ /* blacklisted AES256 encrpytion ciphers */
+ "AES256-SHA", /* TLS_RSA_WITH_AES_256_CBC_SHA */
+ "DH-DSS-AES256-SHA", /* TLS_DH_DSS_WITH_AES_256_CBC_SHA */
+ "DH-RSA-AES256-SHA", /* TLS_DH_RSA_WITH_AES_256_CBC_SHA */
+ "DHE-DSS-AES256-SHA", /* TLS_DHE_DSS_WITH_AES_256_CBC_SHA */
+ "DHE-RSA-AES256-SHA", /* TLS_DHE_RSA_WITH_AES_256_CBC_SHA */
+ "ADH-AES256-SHA", /* TLS_DH_anon_WITH_AES_256_CBC_SHA */
+ "AES256-SHA256", /* TLS_RSA_WITH_AES_256_CBC_SHA256 */
+ "DH-DSS-AES256-SHA256", /* TLS_DH_DSS_WITH_AES_256_CBC_SHA256 */
+ "DH-RSA-AES256-SHA256", /* TLS_DH_RSA_WITH_AES_256_CBC_SHA256 */
+ "DHE-DSS-AES256-SHA256", /* TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 */
+ "DHE-RSA-AES256-SHA256", /* TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 */
+ "ADH-AES256-SHA256", /* TLS_DH_anon_WITH_AES_256_CBC_SHA256 */
+ "ECDH-ECDSA-AES256-SHA", /* TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA */
+ "ECDHE-ECDSA-AES256-SHA", /* TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA */
+ "ECDH-RSA-AES256-SHA", /* TLS_ECDH_RSA_WITH_AES_256_CBC_SHA */
+ "ECDHE-RSA-AES256-SHA", /* TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA */
+ "AECDH-AES256-SHA", /* TLS_ECDH_anon_WITH_AES_256_CBC_SHA */
+ "ECDHE-ECDSA-AES256-SHA384", /* TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 */
+ "ECDH-ECDSA-AES256-SHA384", /* TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 */
+ "ECDHE-RSA-AES256-SHA384", /* TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 */
+ "ECDH-RSA-AES256-SHA384", /* TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 */
+ "PSK-AES256-CBC-SHA", /* TLS_PSK_WITH_AES_256_CBC_SHA */
+ "DHE-PSK-AES256-CBC-SHA", /* TLS_DHE_PSK_WITH_AES_256_CBC_SHA */
+ "RSA-PSK-AES256-CBC-SHA", /* TLS_RSA_PSK_WITH_AES_256_CBC_SHA */
+ "PSK-AES256-CBC-SHA384", /* TLS_PSK_WITH_AES_256_CBC_SHA384 */
+ "DHE-PSK-AES256-CBC-SHA384", /* TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 */
+ "RSA-PSK-AES256-CBC-SHA384", /* TLS_RSA_PSK_WITH_AES_256_CBC_SHA384 */
+ "ECDHE-PSK-AES256-CBC-SHA", /* TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA */
+ "ECDHE-PSK-AES256-CBC-SHA384", /* TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384 */
+ "SRP-AES-256-CBC-SHA", /* TLS_SRP_SHA_WITH_AES_256_CBC_SHA */
+ "SRP-RSA-AES-256-CBC-SHA", /* TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA */
+ "SRP-DSS-AES-256-CBC-SHA", /* TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA */
+ "AES256-CCM", /* TLS_RSA_WITH_AES_256_CCM */
+ "AES256-CCM8", /* TLS_RSA_WITH_AES_256_CCM_8 */
+ "PSK-AES256-CCM", /* TLS_PSK_WITH_AES_256_CCM */
+ "PSK-AES256-CCM8", /* TLS_PSK_WITH_AES_256_CCM_8 */
+ "AES256-GCM-SHA384", /* TLS_RSA_WITH_AES_256_GCM_SHA384 */
+ "DH-RSA-AES256-GCM-SHA384", /* TLS_DH_RSA_WITH_AES_256_GCM_SHA384 */
+ "DH-DSS-AES256-GCM-SHA384", /* TLS_DH_DSS_WITH_AES_256_GCM_SHA384 */
+ "ADH-AES256-GCM-SHA384", /* TLS_DH_anon_WITH_AES_256_GCM_SHA384 */
+ "PSK-AES256-GCM-SHA384", /* TLS_PSK_WITH_AES_256_GCM_SHA384 */
+ "RSA-PSK-AES256-GCM-SHA384", /* TLS_RSA_PSK_WITH_AES_256_GCM_SHA384 */
+ "ECDH-ECDSA-AES256-GCM-SHA384", /* TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 */
+ "ECDH-RSA-AES256-GCM-SHA384", /* TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 */
+
+ /* blacklisted CAMELLIA128 encrpytion ciphers */
+ "CAMELLIA128-SHA", /* TLS_RSA_WITH_CAMELLIA_128_CBC_SHA */
+ "DH-DSS-CAMELLIA128-SHA", /* TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA */
+ "DH-RSA-CAMELLIA128-SHA", /* TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA */
+ "DHE-DSS-CAMELLIA128-SHA", /* TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA */
+ "DHE-RSA-CAMELLIA128-SHA", /* TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA */
+ "ADH-CAMELLIA128-SHA", /* TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA */
+ "ECDHE-ECDSA-CAMELLIA128-SHA256", /* TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 */
+ "ECDH-ECDSA-CAMELLIA128-SHA256", /* TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 */
+ "ECDHE-RSA-CAMELLIA128-SHA256", /* TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 */
+ "ECDH-RSA-CAMELLIA128-SHA256", /* TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 */
+ "PSK-CAMELLIA128-SHA256", /* TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 */
+ "DHE-PSK-CAMELLIA128-SHA256", /* TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 */
+ "RSA-PSK-CAMELLIA128-SHA256", /* TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 */
+ "ECDHE-PSK-CAMELLIA128-SHA256", /* TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 */
+ "CAMELLIA128-GCM-SHA256", /* TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 */
+ "DH-RSA-CAMELLIA128-GCM-SHA256", /* TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256 */
+ "DH-DSS-CAMELLIA128-GCM-SHA256", /* TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256 */
+ "ADH-CAMELLIA128-GCM-SHA256", /* TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256 */
+ "ECDH-ECDSA-CAMELLIA128-GCM-SHA256",/* TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 */
+ "ECDH-RSA-CAMELLIA128-GCM-SHA256", /* TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 */
+ "PSK-CAMELLIA128-GCM-SHA256", /* TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 */
+ "RSA-PSK-CAMELLIA128-GCM-SHA256", /* TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 */
+ "CAMELLIA128-SHA256", /* TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 */
+ "DH-DSS-CAMELLIA128-SHA256", /* TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256 */
+ "DH-RSA-CAMELLIA128-SHA256", /* TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256 */
+ "DHE-DSS-CAMELLIA128-SHA256", /* TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256 */
+ "DHE-RSA-CAMELLIA128-SHA256", /* TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 */
+ "ADH-CAMELLIA128-SHA256", /* TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256 */
+
+ /* blacklisted CAMELLIA256 encrpytion ciphers */
+ "CAMELLIA256-SHA", /* TLS_RSA_WITH_CAMELLIA_256_CBC_SHA */
+ "DH-RSA-CAMELLIA256-SHA", /* TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA */
+ "DH-DSS-CAMELLIA256-SHA", /* TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA */
+ "DHE-DSS-CAMELLIA256-SHA", /* TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA */
+ "DHE-RSA-CAMELLIA256-SHA", /* TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA */
+ "ADH-CAMELLIA256-SHA", /* TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA */
+ "ECDHE-ECDSA-CAMELLIA256-SHA384", /* TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 */
+ "ECDH-ECDSA-CAMELLIA256-SHA384", /* TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 */
+ "ECDHE-RSA-CAMELLIA256-SHA384", /* TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 */
+ "ECDH-RSA-CAMELLIA256-SHA384", /* TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 */
+ "PSK-CAMELLIA256-SHA384", /* TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 */
+ "DHE-PSK-CAMELLIA256-SHA384", /* TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 */
+ "RSA-PSK-CAMELLIA256-SHA384", /* TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 */
+ "ECDHE-PSK-CAMELLIA256-SHA384", /* TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 */
+ "CAMELLIA256-SHA256", /* TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 */
+ "DH-DSS-CAMELLIA256-SHA256", /* TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256 */
+ "DH-RSA-CAMELLIA256-SHA256", /* TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256 */
+ "DHE-DSS-CAMELLIA256-SHA256", /* TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256 */
+ "DHE-RSA-CAMELLIA256-SHA256", /* TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 */
+ "ADH-CAMELLIA256-SHA256", /* TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256 */
+ "CAMELLIA256-GCM-SHA384", /* TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 */
+ "DH-RSA-CAMELLIA256-GCM-SHA384", /* TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384 */
+ "DH-DSS-CAMELLIA256-GCM-SHA384", /* TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384 */
+ "ADH-CAMELLIA256-GCM-SHA384", /* TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384 */
+ "ECDH-ECDSA-CAMELLIA256-GCM-SHA384",/* TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 */
+ "ECDH-RSA-CAMELLIA256-GCM-SHA384", /* TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 */
+ "PSK-CAMELLIA256-GCM-SHA384", /* TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 */
+ "RSA-PSK-CAMELLIA256-GCM-SHA384", /* TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 */
+
+ /* The blacklisted ARIA encrpytion ciphers */
+ "ARIA128-SHA256", /* TLS_RSA_WITH_ARIA_128_CBC_SHA256 */
+ "ARIA256-SHA384", /* TLS_RSA_WITH_ARIA_256_CBC_SHA384 */
+ "DH-DSS-ARIA128-SHA256", /* TLS_DH_DSS_WITH_ARIA_128_CBC_SHA256 */
+ "DH-DSS-ARIA256-SHA384", /* TLS_DH_DSS_WITH_ARIA_256_CBC_SHA384 */
+ "DH-RSA-ARIA128-SHA256", /* TLS_DH_RSA_WITH_ARIA_128_CBC_SHA256 */
+ "DH-RSA-ARIA256-SHA384", /* TLS_DH_RSA_WITH_ARIA_256_CBC_SHA384 */
+ "DHE-DSS-ARIA128-SHA256", /* TLS_DHE_DSS_WITH_ARIA_128_CBC_SHA256 */
+ "DHE-DSS-ARIA256-SHA384", /* TLS_DHE_DSS_WITH_ARIA_256_CBC_SHA384 */
+ "DHE-RSA-ARIA128-SHA256", /* TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256 */
+ "DHE-RSA-ARIA256-SHA384", /* TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384 */
+ "ADH-ARIA128-SHA256", /* TLS_DH_anon_WITH_ARIA_128_CBC_SHA256 */
+ "ADH-ARIA256-SHA384", /* TLS_DH_anon_WITH_ARIA_256_CBC_SHA384 */
+ "ECDHE-ECDSA-ARIA128-SHA256", /* TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256 */
+ "ECDHE-ECDSA-ARIA256-SHA384", /* TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384 */
+ "ECDH-ECDSA-ARIA128-SHA256", /* TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256 */
+ "ECDH-ECDSA-ARIA256-SHA384", /* TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384 */
+ "ECDHE-RSA-ARIA128-SHA256", /* TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256 */
+ "ECDHE-RSA-ARIA256-SHA384", /* TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384 */
+ "ECDH-RSA-ARIA128-SHA256", /* TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256 */
+ "ECDH-RSA-ARIA256-SHA384", /* TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384 */
+ "ARIA128-GCM-SHA256", /* TLS_RSA_WITH_ARIA_128_GCM_SHA256 */
+ "ARIA256-GCM-SHA384", /* TLS_RSA_WITH_ARIA_256_GCM_SHA384 */
+ "DH-DSS-ARIA128-GCM-SHA256", /* TLS_DH_DSS_WITH_ARIA_128_GCM_SHA256 */
+ "DH-DSS-ARIA256-GCM-SHA384", /* TLS_DH_DSS_WITH_ARIA_256_GCM_SHA384 */
+ "DH-RSA-ARIA128-GCM-SHA256", /* TLS_DH_RSA_WITH_ARIA_128_GCM_SHA256 */
+ "DH-RSA-ARIA256-GCM-SHA384", /* TLS_DH_RSA_WITH_ARIA_256_GCM_SHA384 */
+ "ADH-ARIA128-GCM-SHA256", /* TLS_DH_anon_WITH_ARIA_128_GCM_SHA256 */
+ "ADH-ARIA256-GCM-SHA384", /* TLS_DH_anon_WITH_ARIA_256_GCM_SHA384 */
+ "ECDH-ECDSA-ARIA128-GCM-SHA256", /* TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256 */
+ "ECDH-ECDSA-ARIA256-GCM-SHA384", /* TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384 */
+ "ECDH-RSA-ARIA128-GCM-SHA256", /* TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256 */
+ "ECDH-RSA-ARIA256-GCM-SHA384", /* TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384 */
+ "PSK-ARIA128-SHA256", /* TLS_PSK_WITH_ARIA_128_CBC_SHA256 */
+ "PSK-ARIA256-SHA384", /* TLS_PSK_WITH_ARIA_256_CBC_SHA384 */
+ "DHE-PSK-ARIA128-SHA256", /* TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256 */
+ "DHE-PSK-ARIA256-SHA384", /* TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384 */
+ "RSA-PSK-ARIA128-SHA256", /* TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256 */
+ "RSA-PSK-ARIA256-SHA384", /* TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384 */
+ "ARIA128-GCM-SHA256", /* TLS_PSK_WITH_ARIA_128_GCM_SHA256 */
+ "ARIA256-GCM-SHA384", /* TLS_PSK_WITH_ARIA_256_GCM_SHA384 */
+ "RSA-PSK-ARIA128-GCM-SHA256", /* TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256 */
+ "RSA-PSK-ARIA256-GCM-SHA384", /* TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384 */
+ "ECDHE-PSK-ARIA128-SHA256", /* TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256 */
+ "ECDHE-PSK-ARIA256-SHA384", /* TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384 */
+
+ /* blacklisted SEED encryptions */
+ "SEED-SHA", /*TLS_RSA_WITH_SEED_CBC_SHA */
+ "DH-DSS-SEED-SHA", /* TLS_DH_DSS_WITH_SEED_CBC_SHA */
+ "DH-RSA-SEED-SHA", /* TLS_DH_RSA_WITH_SEED_CBC_SHA */
+ "DHE-DSS-SEED-SHA", /* TLS_DHE_DSS_WITH_SEED_CBC_SHA */
+ "DHE-RSA-SEED-SHA", /* TLS_DHE_RSA_WITH_SEED_CBC_SHA */
+ "ADH-SEED-SHA", /* TLS_DH_anon_WITH_SEED_CBC_SHA */
+
+ /* blacklisted KRB5 ciphers */
+ "KRB5-DES-CBC-SHA", /* TLS_KRB5_WITH_DES_CBC_SHA */
+ "KRB5-DES-CBC3-SHA", /* TLS_KRB5_WITH_3DES_EDE_CBC_SHA */
+ "KRB5-IDEA-CBC-SHA", /* TLS_KRB5_WITH_IDEA_CBC_SHA */
+ "KRB5-DES-CBC-MD5", /* TLS_KRB5_WITH_DES_CBC_MD5 */
+ "KRB5-DES-CBC3-MD5", /* TLS_KRB5_WITH_3DES_EDE_CBC_MD5 */
+ "KRB5-IDEA-CBC-MD5", /* TLS_KRB5_WITH_IDEA_CBC_MD5 */
+ "EXP-KRB5-DES-CBC-SHA", /* TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA */
+ "EXP-KRB5-DES-CBC-MD5", /* TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5 */
+ "EXP-KRB5-RC2-CBC-SHA", /* TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA */
+ "EXP-KRB5-RC2-CBC-MD5", /* TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5 */
+
+ /* blacklisted exoticas */
+ "DHE-DSS-CBC-SHA", /* TLS_DHE_DSS_WITH_DES_CBC_SHA */
+ "IDEA-CBC-SHA", /* TLS_RSA_WITH_IDEA_CBC_SHA */
+
+ /* not really sure if the following names are correct */
+ "SSL3_CK_SCSV", /* TLS_EMPTY_RENEGOTIATION_INFO_SCSV */
+ "SSL3_CK_FALLBACK_SCSV"
+};
+static size_t RFC7540_names_LEN = sizeof(RFC7540_names)/sizeof(RFC7540_names[0]);
+
+
+static apr_hash_t *BLCNames;
+
+static void cipher_init(apr_pool_t *pool)
+{
+ apr_hash_t *hash = apr_hash_make(pool);
+ const char *source;
+ unsigned int i;
+
+ source = "rfc7540";
+ for (i = 0; i < RFC7540_names_LEN; ++i) {
+ apr_hash_set(hash, RFC7540_names[i], APR_HASH_KEY_STRING, source);
+ }
+
+ BLCNames = hash;
+}
+
+static int cipher_is_blacklisted(const char *cipher, const char **psource)
+{
+ *psource = apr_hash_get(BLCNames, cipher, APR_HASH_KEY_STRING);
+ return !!*psource;
+}
+
+apr_status_t h2_protocol_init(apr_pool_t *pool, server_rec *s)
+{
+ (void)pool;
+ ap_log_error(APLOG_MARK, APLOG_TRACE1, 0, s, "h2_h2, child_init");
+ cipher_init(pool);
+
+ return APR_SUCCESS;
+}
+
+int h2_protocol_is_acceptable_c1(conn_rec *c, request_rec *r, int require_all)
+{
+ int is_tls = ap_ssl_conn_is_ssl(c);
+
+ if (is_tls && h2_config_cgeti(c, H2_CONF_MODERN_TLS_ONLY) > 0) {
+ /* Check TLS connection for modern TLS parameters, as defined in
+ * RFC 7540 and https://wiki.mozilla.org/Security/Server_Side_TLS#Modern_compatibility
+ */
+ apr_pool_t *pool = c->pool;
+ server_rec *s = c->base_server;
+ const char *val;
+
+ /* Need Tlsv1.2 or higher, rfc 7540, ch. 9.2
+ */
+ val = ap_ssl_var_lookup(pool, s, c, NULL, "SSL_PROTOCOL");
+ if (val && *val) {
+ if (strncmp("TLS", val, 3)
+ || !strcmp("TLSv1", val)
+ || !strcmp("TLSv1.1", val)) {
+ ap_log_cerror(APLOG_MARK, APLOG_DEBUG, 0, c, APLOGNO(03050)
+ "h2_h2(%ld): tls protocol not suitable: %s",
+ (long)c->id, val);
+ return 0;
+ }
+ }
+ else if (require_all) {
+ ap_log_cerror(APLOG_MARK, APLOG_DEBUG, 0, c, APLOGNO(03051)
+ "h2_h2(%ld): tls protocol is indetermined", (long)c->id);
+ return 0;
+ }
+
+ if (val && !strcmp("TLSv1.2", val)) {
+ /* Check TLS cipher blacklist, defined pre-TLSv1.3, so only
+ * checking for 1.2 */
+ val = ap_ssl_var_lookup(pool, s, c, NULL, "SSL_CIPHER");
+ if (val && *val) {
+ const char *source;
+ if (cipher_is_blacklisted(val, &source)) {
+ ap_log_cerror(APLOG_MARK, APLOG_DEBUG, 0, c, APLOGNO(03052)
+ "h2_h2(%ld): tls cipher %s blacklisted by %s",
+ (long)c->id, val, source);
+ return 0;
+ }
+ }
+ else if (require_all) {
+ ap_log_cerror(APLOG_MARK, APLOG_DEBUG, 0, c, APLOGNO(03053)
+ "h2_h2(%ld): tls cipher is indetermined", (long)c->id);
+ return 0;
+ }
+ }
+ }
+ return 1;
+}
+