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ef39dd058b
Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com> (Merged from https://github.com/openssl/openssl/pull/25868)
112 lines
4.3 KiB
C
112 lines
4.3 KiB
C
/*
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* Copyright 2023 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef OSSL_NGHTTP3_H
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# define OSSL_NGHTTP3_H
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# include <openssl/bio.h>
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# include <openssl/ssl.h>
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# include <nghttp3/nghttp3.h>
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/*
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* ossl-nghttp3: Demo binding of nghttp3 to OpenSSL QUIC
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* =====================================================
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*
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* This is a simple library which provides an example binding of the nghttp3
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* HTTP/3 library to OpenSSL's QUIC API.
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*/
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/* Represents an HTTP/3 connection to a server. */
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typedef struct ossl_demo_h3_conn_st OSSL_DEMO_H3_CONN;
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/* Represents an HTTP/3 request, control or QPACK stream. */
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typedef struct ossl_demo_h3_stream_st OSSL_DEMO_H3_STREAM;
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/*
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* Creates a HTTP/3 connection using the given QUIC client connection BIO. The
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* BIO must be able to provide an SSL object pointer using BIO_get_ssl. Takes
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* ownership of the reference. If the QUIC connection SSL object has not already
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* been connected, HTTP/3 ALPN is set automatically. If it has already been
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* connected, HTTP/3 ALPN ("h3") must have been configured and no streams must
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* have been created yet.
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*
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* If settings is NULL, use default settings only. Settings unsupported by
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* this QUIC binding are ignored.
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*
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* user_data is an application-provided opaque value which can be retrieved
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* using OSSL_DEMO_H3_CONN_get_user_data. Note that the user data value passed
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* to the callback functions specified in callbacks is a pointer to the
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* OSSL_DEMO_H3_CONN, not user_data.
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*
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* Returns NULL on failure.
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*/
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OSSL_DEMO_H3_CONN *OSSL_DEMO_H3_CONN_new_for_conn(BIO *qconn_bio,
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const nghttp3_callbacks *callbacks,
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const nghttp3_settings *settings,
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void *user_data);
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/*
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* Works identically to OSSL_DEMO_H3_CONN_new_for_conn except that it manages
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* the creation of a QUIC connection SSL object automatically using an address
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* string. addr should be a string such as "www.example.com:443". The created
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* underlying QUIC connection SSL object is owned by the OSSL_DEMO_H3_CONN and
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* can be subsequently retrieved using OSSL_DEMO_H3_CONN_get0_connection.
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*
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* Returns NULL on failure. ctx must be an SSL_CTX using a QUIC client
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* SSL_METHOD.
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*/
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OSSL_DEMO_H3_CONN *OSSL_DEMO_H3_CONN_new_for_addr(SSL_CTX *ctx,
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const char *addr,
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const nghttp3_callbacks *callbacks,
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const nghttp3_settings *settings,
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void *user_data);
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/* Equivalent to SSL_connect(OSSL_DEMO_H3_CONN_get0_connection(conn)). */
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int OSSL_DEMO_H3_CONN_connect(OSSL_DEMO_H3_CONN *conn);
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/*
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* Free the OSSL_DEMO_H3_CONN and any underlying QUIC connection SSL object and
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* associated streams.
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*/
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void OSSL_DEMO_H3_CONN_free(OSSL_DEMO_H3_CONN *conn);
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/*
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* Returns the user data value which was specified in
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* OSSL_DEMO_H3_CONN_new_for_conn.
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*/
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void *OSSL_DEMO_H3_CONN_get_user_data(const OSSL_DEMO_H3_CONN *conn);
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/* Returns the underlying QUIC connection SSL object. */
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SSL *OSSL_DEMO_H3_CONN_get0_connection(const OSSL_DEMO_H3_CONN *conn);
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/*
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* Handle any pending events on a given HTTP/3 connection. Returns 0 on error.
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*/
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int OSSL_DEMO_H3_CONN_handle_events(OSSL_DEMO_H3_CONN *conn);
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/*
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* Submits a new HTTP/3 request on the given connection. Returns 0 on error.
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*
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* This works analogously to nghttp3_conn_submit_request(). The stream user data
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* pointer passed to the callbacks is a OSSL_DEMO_H3_STREAM object pointer; to
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* retrieve the stream user data pointer passed to this function, use
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* OSSL_DEMO_H3_STREAM_get_user_data.
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*/
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int OSSL_DEMO_H3_CONN_submit_request(OSSL_DEMO_H3_CONN *conn,
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const nghttp3_nv *hdr, size_t hdrlen,
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const nghttp3_data_reader *dr,
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void *stream_user_data);
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/*
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* Returns the user data value which was specified in
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* OSSL_DEMO_H3_CONN_submit_request.
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*/
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void *OSSL_DEMO_H3_STREAM_get_user_data(const OSSL_DEMO_H3_STREAM *stream);
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#endif
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