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/* 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.
*/
#ifndef __mod_h2__h2_protocol__
#define __mod_h2__h2_protocol__
/**
* List of protocol identifiers that we support in cleartext
* negotiations. NULL terminated.
*/
extern const char *h2_protocol_ids_clear[];
/**
* List of protocol identifiers that we support in TLS encrypted
* negotiations (ALPN). NULL terminated.
*/
extern const char *h2_protocol_ids_tls[];
/**
* Provide a user readable description of the HTTP/2 error code-
* @param h2_error http/2 error code, as in rfc 7540, ch. 7
* @return textual description of code or that it is unknown.
*/
const char *h2_protocol_err_description(unsigned int h2_error);
/*
* One time, post config initialization.
*/
apr_status_t h2_protocol_init(apr_pool_t *pool, server_rec *s);
/**
* Check if the given primary connection fulfills the protocol
* requirements for HTTP/2.
* @param c the connection
* @param require_all != 0 iff any missing connection properties make
* the test fail. For example, a cipher might not have been selected while
* the handshake is still ongoing.
* @return != 0 iff protocol requirements are met
*/
int h2_protocol_is_acceptable_c1(conn_rec *c, request_rec *r, int require_all);
#endif /* defined(__mod_h2__h2_protocol__) */
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