Mercurial > hg > nginx
view src/event/quic/ngx_event_quic_protection.h @ 9176:8dacf87e4007
QUIC: simplified ngx_quic_ciphers() API.
After conversion to reusable crypto ctx, now there's enough caller
context to remove the "level" argument from ngx_quic_ciphers().
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Fri, 20 Oct 2023 18:05:07 +0400 |
parents | 31702c53d2db |
children | 22d110af473c |
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/* * Copyright (C) Nginx, Inc. */ #ifndef _NGX_EVENT_QUIC_PROTECTION_H_INCLUDED_ #define _NGX_EVENT_QUIC_PROTECTION_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event_quic_transport.h> #define NGX_QUIC_ENCRYPTION_LAST ((ssl_encryption_application) + 1) /* RFC 5116, 5.1/5.3 and RFC 8439, 2.3/2.5 for all supported ciphers */ #define NGX_QUIC_IV_LEN 12 #define NGX_QUIC_TAG_LEN 16 /* largest hash used in TLS is SHA-384 */ #define NGX_QUIC_MAX_MD_SIZE 48 #ifdef OPENSSL_IS_BORINGSSL #define ngx_quic_cipher_t EVP_AEAD #define ngx_quic_crypto_ctx_t EVP_AEAD_CTX #else #define ngx_quic_cipher_t EVP_CIPHER #define ngx_quic_crypto_ctx_t EVP_CIPHER_CTX #endif typedef struct { size_t len; u_char data[NGX_QUIC_MAX_MD_SIZE]; } ngx_quic_md_t; typedef struct { size_t len; u_char data[NGX_QUIC_IV_LEN]; } ngx_quic_iv_t; typedef struct { ngx_quic_md_t secret; ngx_quic_md_t key; ngx_quic_iv_t iv; ngx_quic_md_t hp; ngx_quic_crypto_ctx_t *ctx; EVP_CIPHER_CTX *hp_ctx; } ngx_quic_secret_t; typedef struct { ngx_quic_secret_t client; ngx_quic_secret_t server; } ngx_quic_secrets_t; struct ngx_quic_keys_s { ngx_quic_secrets_t secrets[NGX_QUIC_ENCRYPTION_LAST]; ngx_quic_secrets_t next_key; ngx_uint_t cipher; }; typedef struct { const ngx_quic_cipher_t *c; const EVP_CIPHER *hp; const EVP_MD *d; } ngx_quic_ciphers_t; typedef struct { size_t out_len; u_char *out; size_t prk_len; const uint8_t *prk; size_t label_len; const u_char *label; } ngx_quic_hkdf_t; #define ngx_quic_hkdf_set(seq, _label, _out, _prk) \ (seq)->out_len = (_out)->len; (seq)->out = (_out)->data; \ (seq)->prk_len = (_prk)->len, (seq)->prk = (_prk)->data, \ (seq)->label_len = (sizeof(_label) - 1); (seq)->label = (u_char *)(_label); ngx_int_t ngx_quic_keys_set_initial_secret(ngx_quic_keys_t *keys, ngx_str_t *secret, ngx_log_t *log); ngx_int_t ngx_quic_keys_set_encryption_secret(ngx_log_t *log, ngx_uint_t is_write, ngx_quic_keys_t *keys, enum ssl_encryption_level_t level, const SSL_CIPHER *cipher, const uint8_t *secret, size_t secret_len); ngx_uint_t ngx_quic_keys_available(ngx_quic_keys_t *keys, enum ssl_encryption_level_t level, ngx_uint_t is_write); void ngx_quic_keys_discard(ngx_quic_keys_t *keys, enum ssl_encryption_level_t level); void ngx_quic_keys_switch(ngx_connection_t *c, ngx_quic_keys_t *keys); void ngx_quic_keys_update(ngx_event_t *ev); void ngx_quic_keys_cleanup(ngx_quic_keys_t *keys); ngx_int_t ngx_quic_encrypt(ngx_quic_header_t *pkt, ngx_str_t *res); ngx_int_t ngx_quic_decrypt(ngx_quic_header_t *pkt, uint64_t *largest_pn); void ngx_quic_compute_nonce(u_char *nonce, size_t len, uint64_t pn); ngx_int_t ngx_quic_ciphers(ngx_uint_t id, ngx_quic_ciphers_t *ciphers); ngx_int_t ngx_quic_crypto_init(const ngx_quic_cipher_t *cipher, ngx_quic_secret_t *s, ngx_int_t enc, ngx_log_t *log); ngx_int_t ngx_quic_crypto_seal(ngx_quic_secret_t *s, ngx_str_t *out, u_char *nonce, ngx_str_t *in, ngx_str_t *ad, ngx_log_t *log); void ngx_quic_crypto_cleanup(ngx_quic_secret_t *s); ngx_int_t ngx_quic_hkdf_expand(ngx_quic_hkdf_t *hkdf, const EVP_MD *digest, ngx_log_t *log); #endif /* _NGX_EVENT_QUIC_PROTECTION_H_INCLUDED_ */