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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_h2__
#define __mod_h2__h2_h2__
/**
* List of ALPN protocol identifiers that we support in cleartext
* negotiations. NULL terminated.
*/
extern const char *h2_clear_protos[];
/**
* List of ALPN protocol identifiers that we support in TLS encrypted
* negotiations. NULL terminated.
*/
extern const char *h2_tls_protos[];
/**
* 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_h2_err_description(unsigned int h2_error);
/*
* One time, post config initialization.
*/
apr_status_t h2_h2_init(apr_pool_t *pool, server_rec *s);
/* Is the connection a TLS connection?
*/
int h2_h2_is_tls(conn_rec *c);
/* Register apache hooks for h2 protocol
*/
void h2_h2_register_hooks(void);
/**
* Check if the given connection fulfills the requirements as configured.
* @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 connection requirements are met
*/
int h2_is_acceptable_connection(conn_rec *c, request_rec *r, int require_all);
/**
* Check if the "Upgrade" HTTP/1.1 mode of protocol switching is enabled
* for the given request.
* @param r the request to check
* @return != 0 iff Upgrade switching is enabled
*/
int h2_allows_h2_upgrade(request_rec *r);
#endif /* defined(__mod_h2__h2_h2__) */