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/*
* Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef OSSL_QUIC_TYPES_H
# define OSSL_QUIC_TYPES_H
# include <openssl/ssl.h>
# include <internal/ssl.h>
# include <assert.h>
# include <string.h>
# ifndef OPENSSL_NO_QUIC
/* QUIC encryption levels. */
# define QUIC_ENC_LEVEL_INITIAL 0
# define QUIC_ENC_LEVEL_HANDSHAKE 1
# define QUIC_ENC_LEVEL_0RTT 2
# define QUIC_ENC_LEVEL_1RTT 3
# define QUIC_ENC_LEVEL_NUM 4
/* QUIC packet number spaces. */
# define QUIC_PN_SPACE_INITIAL 0
# define QUIC_PN_SPACE_HANDSHAKE 1
# define QUIC_PN_SPACE_APP 2
# define QUIC_PN_SPACE_NUM 3
static ossl_unused ossl_inline uint32_t
ossl_quic_enc_level_to_pn_space(uint32_t enc_level)
{
switch (enc_level) {
case QUIC_ENC_LEVEL_INITIAL:
return QUIC_PN_SPACE_INITIAL;
case QUIC_ENC_LEVEL_HANDSHAKE:
return QUIC_PN_SPACE_HANDSHAKE;
case QUIC_ENC_LEVEL_0RTT:
case QUIC_ENC_LEVEL_1RTT:
return QUIC_PN_SPACE_APP;
default:
assert(0);
return QUIC_PN_SPACE_APP;
}
}
/* QUIC packet number spaces. */
# define QUIC_PN_SPACE_INITIAL 0
# define QUIC_PN_SPACE_HANDSHAKE 1
# define QUIC_PN_SPACE_APP 2
# define QUIC_PN_SPACE_NUM 3
/* QUIC packet number representation. */
typedef uint64_t QUIC_PN;
# define QUIC_PN_INVALID UINT64_MAX
static ossl_unused ossl_inline QUIC_PN ossl_quic_pn_max(QUIC_PN a, QUIC_PN b)
{
return a > b ? a : b;
}
static ossl_unused ossl_inline QUIC_PN ossl_quic_pn_min(QUIC_PN a, QUIC_PN b)
{
return a < b ? a : b;
}
/* QUIC connection ID representation. */
# define QUIC_MAX_CONN_ID_LEN 20
typedef struct quic_conn_id_st {
unsigned char id_len, id[QUIC_MAX_CONN_ID_LEN];
} QUIC_CONN_ID;
static ossl_unused ossl_inline int ossl_quic_conn_id_eq(const QUIC_CONN_ID *a,
const QUIC_CONN_ID *b)
{
if (a->id_len != b->id_len || a->id_len > QUIC_MAX_CONN_ID_LEN)
return 0;
return memcmp(a->id, b->id, a->id_len) == 0;
}
# define QUIC_MIN_INITIAL_DGRAM_LEN 1200
# define QUIC_DEFAULT_ACK_DELAY_EXP 3
# define QUIC_MAX_ACK_DELAY_EXP 20
# define QUIC_DEFAULT_MAX_ACK_DELAY 25
# define QUIC_MIN_ACTIVE_CONN_ID_LIMIT 2
/* Arbitrary choice of default idle timeout (not an RFC value). */
# define QUIC_DEFAULT_IDLE_TIMEOUT 30000
# define QUIC_STATELESS_RESET_TOKEN_LEN 16
# endif
#endif
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