diff options
Diffstat (limited to 'modules/http2/h2_h2.c')
| -rw-r--r-- | modules/http2/h2_h2.c | 765 |
1 files changed, 765 insertions, 0 deletions
diff --git a/modules/http2/h2_h2.c b/modules/http2/h2_h2.c new file mode 100644 index 0000000..5580cef --- /dev/null +++ b/modules/http2/h2_h2.c @@ -0,0 +1,765 @@ +/* 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_log.h> + +#include "mod_ssl.h" + +#include "mod_http2.h" +#include "h2_private.h" + +#include "h2_bucket_beam.h" +#include "h2_stream.h" +#include "h2_task.h" +#include "h2_config.h" +#include "h2_ctx.h" +#include "h2_conn.h" +#include "h2_filter.h" +#include "h2_request.h" +#include "h2_headers.h" +#include "h2_session.h" +#include "h2_util.h" +#include "h2_h2.h" +#include "mod_http2.h" + +const char *h2_tls_protos[] = { + "h2", NULL +}; + +const char *h2_clear_protos[] = { + "h2c", NULL +}; + +const char *H2_MAGIC_TOKEN = "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"; + +/******************************************************************************* + * The optional mod_ssl functions we need. + */ +static APR_OPTIONAL_FN_TYPE(ssl_is_https) *opt_ssl_is_https; +static APR_OPTIONAL_FN_TYPE(ssl_var_lookup) *opt_ssl_var_lookup; + + +/******************************************************************************* + * 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_h2_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; +} + +/******************************************************************************* + * Hooks for processing incoming connections: + * - process_conn take over connection in case of h2 + */ +static int h2_h2_process_conn(conn_rec* c); +static int h2_h2_pre_close_conn(conn_rec* c); +static int h2_h2_post_read_req(request_rec *r); +static int h2_h2_late_fixups(request_rec *r); + +/******************************************************************************* + * Once per lifetime init, retrieve optional functions + */ +apr_status_t h2_h2_init(apr_pool_t *pool, server_rec *s) +{ + (void)pool; + ap_log_error(APLOG_MARK, APLOG_TRACE1, 0, s, "h2_h2, child_init"); + opt_ssl_is_https = APR_RETRIEVE_OPTIONAL_FN(ssl_is_https); + opt_ssl_var_lookup = APR_RETRIEVE_OPTIONAL_FN(ssl_var_lookup); + + if (!opt_ssl_is_https || !opt_ssl_var_lookup) { + ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s, + APLOGNO(02951) "mod_ssl does not seem to be enabled"); + } + + cipher_init(pool); + + return APR_SUCCESS; +} + +int h2_h2_is_tls(conn_rec *c) +{ + return opt_ssl_is_https && opt_ssl_is_https(c); +} + +int h2_is_acceptable_connection(conn_rec *c, int require_all) +{ + int is_tls = h2_h2_is_tls(c); + const h2_config *cfg = h2_config_get(c); + + if (is_tls && h2_config_geti(cfg, 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; + char *val; + + if (!opt_ssl_var_lookup) { + /* unable to check */ + return 0; + } + + /* Need Tlsv1.2 or higher, rfc 7540, ch. 9.2 + */ + val = opt_ssl_var_lookup(pool, s, c, NULL, (char*)"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; + } + + /* Check TLS cipher blacklist + */ + val = opt_ssl_var_lookup(pool, s, c, NULL, (char*)"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; +} + +int h2_allows_h2_direct(conn_rec *c) +{ + const h2_config *cfg = h2_config_get(c); + int is_tls = h2_h2_is_tls(c); + const char *needed_protocol = is_tls? "h2" : "h2c"; + int h2_direct = h2_config_geti(cfg, H2_CONF_DIRECT); + + if (h2_direct < 0) { + h2_direct = is_tls? 0 : 1; + } + return (h2_direct + && ap_is_allowed_protocol(c, NULL, NULL, needed_protocol)); +} + +int h2_allows_h2_upgrade(conn_rec *c) +{ + const h2_config *cfg = h2_config_get(c); + int h2_upgrade = h2_config_geti(cfg, H2_CONF_UPGRADE); + + return h2_upgrade > 0 || (h2_upgrade < 0 && !h2_h2_is_tls(c)); +} + +/******************************************************************************* + * Register various hooks + */ +static const char* const mod_ssl[] = { "mod_ssl.c", NULL}; +static const char* const mod_reqtimeout[] = { "mod_reqtimeout.c", NULL}; + +void h2_h2_register_hooks(void) +{ + /* Our main processing needs to run quite late. Definitely after mod_ssl, + * as we need its connection filters, but also before reqtimeout as its + * method of timeouts is specific to HTTP/1.1 (as of now). + * The core HTTP/1 processing run as REALLY_LAST, so we will have + * a chance to take over before it. + */ + ap_hook_process_connection(h2_h2_process_conn, + mod_ssl, mod_reqtimeout, APR_HOOK_LAST); + + /* One last chance to properly say goodbye if we have not done so + * already. */ + ap_hook_pre_close_connection(h2_h2_pre_close_conn, NULL, mod_ssl, APR_HOOK_LAST); + + /* With "H2SerializeHeaders On", we install the filter in this hook + * that parses the response. This needs to happen before any other post + * read function terminates the request with an error. Otherwise we will + * never see the response. + */ + ap_hook_post_read_request(h2_h2_post_read_req, NULL, NULL, APR_HOOK_REALLY_FIRST); + ap_hook_fixups(h2_h2_late_fixups, NULL, NULL, APR_HOOK_LAST); + + /* special bucket type transfer through a h2_bucket_beam */ + h2_register_bucket_beamer(h2_bucket_headers_beam); + h2_register_bucket_beamer(h2_bucket_observer_beam); +} + +int h2_h2_process_conn(conn_rec* c) +{ + apr_status_t status; + h2_ctx *ctx; + + if (c->master) { + return DECLINED; + } + + ctx = h2_ctx_get(c, 0); + ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, "h2_h2, process_conn"); + if (h2_ctx_is_task(ctx)) { + /* our stream pseudo connection */ + ap_log_cerror(APLOG_MARK, APLOG_TRACE2, 0, c, "h2_h2, task, declined"); + return DECLINED; + } + + if (!ctx && c->keepalives == 0) { + const char *proto = ap_get_protocol(c); + + if (APLOGctrace1(c)) { + ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, "h2_h2, process_conn, " + "new connection using protocol '%s', direct=%d, " + "tls acceptable=%d", proto, h2_allows_h2_direct(c), + h2_is_acceptable_connection(c, 1)); + } + + if (!strcmp(AP_PROTOCOL_HTTP1, proto) + && h2_allows_h2_direct(c) + && h2_is_acceptable_connection(c, 1)) { + /* Fresh connection still is on http/1.1 and H2Direct is enabled. + * Otherwise connection is in a fully acceptable state. + * -> peek at the first 24 incoming bytes + */ + apr_bucket_brigade *temp; + char *s = NULL; + apr_size_t slen; + + temp = apr_brigade_create(c->pool, c->bucket_alloc); + status = ap_get_brigade(c->input_filters, temp, + AP_MODE_SPECULATIVE, APR_BLOCK_READ, 24); + + if (status != APR_SUCCESS) { + ap_log_cerror(APLOG_MARK, APLOG_DEBUG, status, c, APLOGNO(03054) + "h2_h2, error reading 24 bytes speculative"); + apr_brigade_destroy(temp); + return DECLINED; + } + + apr_brigade_pflatten(temp, &s, &slen, c->pool); + if ((slen >= 24) && !memcmp(H2_MAGIC_TOKEN, s, 24)) { + ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, + "h2_h2, direct mode detected"); + if (!ctx) { + ctx = h2_ctx_get(c, 1); + } + h2_ctx_protocol_set(ctx, h2_h2_is_tls(c)? "h2" : "h2c"); + } + else if (APLOGctrace2(c)) { + ap_log_cerror(APLOG_MARK, APLOG_TRACE2, 0, c, + "h2_h2, not detected in %d bytes(base64): %s", + (int)slen, h2_util_base64url_encode(s, slen, c->pool)); + } + + apr_brigade_destroy(temp); + } + } + + if (ctx) { + ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, "process_conn"); + if (!h2_ctx_session_get(ctx)) { + status = h2_conn_setup(ctx, c, NULL); + ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, c, "conn_setup"); + if (status != APR_SUCCESS) { + h2_ctx_clear(c); + return !OK; + } + } + h2_conn_run(ctx, c); + return OK; + } + + ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, "h2_h2, declined"); + return DECLINED; +} + +static int h2_h2_pre_close_conn(conn_rec *c) +{ + h2_ctx *ctx; + + /* slave connection? */ + if (c->master) { + return DECLINED; + } + + ctx = h2_ctx_get(c, 0); + if (ctx) { + /* If the session has been closed correctly already, we will not + * find a h2_ctx here. The presence indicates that the session + * is still ongoing. */ + return h2_conn_pre_close(ctx, c); + } + return DECLINED; +} + +static void check_push(request_rec *r, const char *tag) +{ + const h2_config *conf = h2_config_rget(r); + if (!r->expecting_100 + && conf && conf->push_list && conf->push_list->nelts > 0) { + int i, old_status; + const char *old_line; + ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, + "%s, early announcing %d resources for push", + tag, conf->push_list->nelts); + for (i = 0; i < conf->push_list->nelts; ++i) { + h2_push_res *push = &APR_ARRAY_IDX(conf->push_list, i, h2_push_res); + apr_table_add(r->headers_out, "Link", + apr_psprintf(r->pool, "<%s>; rel=preload%s", + push->uri_ref, push->critical? "; critical" : "")); + } + old_status = r->status; + old_line = r->status_line; + r->status = 103; + r->status_line = "103 Early Hints"; + ap_send_interim_response(r, 1); + r->status = old_status; + r->status_line = old_line; + } +} + +static int h2_h2_post_read_req(request_rec *r) +{ + /* slave connection? */ + if (r->connection->master) { + h2_ctx *ctx = h2_ctx_rget(r); + struct h2_task *task = h2_ctx_get_task(ctx); + /* This hook will get called twice on internal redirects. Take care + * that we manipulate filters only once. */ + if (task && !task->filters_set) { + ap_filter_t *f; + ap_log_rerror(APLOG_MARK, APLOG_TRACE3, 0, r, + "h2_task(%s): adding request filters", task->id); + + /* setup the correct filters to process the request for h2 */ + ap_add_input_filter("H2_REQUEST", task, r, r->connection); + + /* replace the core http filter that formats response headers + * in HTTP/1 with our own that collects status and headers */ + ap_remove_output_filter_byhandle(r->output_filters, "HTTP_HEADER"); + ap_add_output_filter("H2_RESPONSE", task, r, r->connection); + + for (f = r->input_filters; f; f = f->next) { + if (!strcmp("H2_SLAVE_IN", f->frec->name)) { + f->r = r; + break; + } + } + ap_add_output_filter("H2_TRAILERS_OUT", task, r, r->connection); + task->filters_set = 1; + } + } + return DECLINED; +} + +static int h2_h2_late_fixups(request_rec *r) +{ + /* slave connection? */ + if (r->connection->master) { + h2_ctx *ctx = h2_ctx_rget(r); + struct h2_task *task = h2_ctx_get_task(ctx); + if (task) { + /* check if we copy vs. setaside files in this location */ + task->output.copy_files = h2_config_geti(h2_config_rget(r), + H2_CONF_COPY_FILES); + if (task->output.copy_files) { + ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, task->c, + "h2_slave_out(%s): copy_files on", task->id); + h2_beam_on_file_beam(task->output.beam, h2_beam_no_files, NULL); + } + check_push(r, "late_fixup"); + } + } + return DECLINED; +} + |