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annotate src/event/quic/ngx_event_quic_openssl_compat.h @ 9157:daf8f5ba23d8

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QUIC: removed use of SSL_quic_read_level and SSL_quic_write_level. As explained in BoringSSL change[1], levels were introduced in the original QUIC API to draw a line between when keys are released and when are active. In the new QUIC API they are released in separate calls when it's needed. BoringSSL has then a consideration to remove levels API, hence the change. If not available e.g. from a QUIC packet header, levels can be taken based on keys availability. The only real use of levels is to prevent using app keys before they are active in QuicTLS that provides the old BoringSSL QUIC API, it is replaced with an equivalent check of c->ssl->handshaked. This change also removes OpenSSL compat shims since they are no longer used. The only exception left is caching write level from the keylog callback in the internal field which is a handy equivalent of checking keys availability. [1] https://boringssl.googlesource.com/boringssl/+/1e859054
author Sergey Kandaurov <pluknet@nginx.com>
date Fri, 01 Sep 2023 20:31:46 +0400
parents bddd3f76e3e5
children
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1
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2 /*
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3 * Copyright (C) Nginx, Inc.
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4 */
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7 #ifndef _NGX_EVENT_QUIC_OPENSSL_COMPAT_H_INCLUDED_
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8 #define _NGX_EVENT_QUIC_OPENSSL_COMPAT_H_INCLUDED_
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10 #if defined SSL_R_MISSING_QUIC_TRANSPORT_PARAMETERS_EXTENSION \
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11 || defined LIBRESSL_VERSION_NUMBER
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12 #undef NGX_QUIC_OPENSSL_COMPAT
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13 #else
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16 #include <ngx_config.h>
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17 #include <ngx_core.h>
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20 typedef struct ngx_quic_compat_s ngx_quic_compat_t;
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23 enum ssl_encryption_level_t {
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24 ssl_encryption_initial = 0,
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25 ssl_encryption_early_data,
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26 ssl_encryption_handshake,
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27 ssl_encryption_application
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28 };
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31 typedef struct ssl_quic_method_st {
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32 int (*set_read_secret)(SSL *ssl, enum ssl_encryption_level_t level,
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33 const SSL_CIPHER *cipher,
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34 const uint8_t *rsecret, size_t secret_len);
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35 int (*set_write_secret)(SSL *ssl, enum ssl_encryption_level_t level,
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36 const SSL_CIPHER *cipher,
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37 const uint8_t *wsecret, size_t secret_len);
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38 int (*add_handshake_data)(SSL *ssl, enum ssl_encryption_level_t level,
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39 const uint8_t *data, size_t len);
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40 int (*flush_flight)(SSL *ssl);
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41 int (*send_alert)(SSL *ssl, enum ssl_encryption_level_t level,
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42 uint8_t alert);
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43 } SSL_QUIC_METHOD;
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46 ngx_int_t ngx_quic_compat_init(ngx_conf_t *cf, SSL_CTX *ctx);
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48 int SSL_set_quic_method(SSL *ssl, const SSL_QUIC_METHOD *quic_method);
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49 int SSL_provide_quic_data(SSL *ssl, enum ssl_encryption_level_t level,
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50 const uint8_t *data, size_t len);
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51 int SSL_set_quic_transport_params(SSL *ssl, const uint8_t *params,
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52 size_t params_len);
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53 void SSL_get_peer_quic_transport_params(const SSL *ssl,
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54 const uint8_t **out_params, size_t *out_params_len);
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57 #endif /* TLSEXT_TYPE_quic_transport_parameters */
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59 #endif /* _NGX_EVENT_QUIC_OPENSSL_COMPAT_H_INCLUDED_ */