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/*
* Copyright 2024-2025 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
*/
#include <openssl/ssl.h>
#include "internal/ssl_unwrap.h"
#include "internal/quic_tls.h"
#include "../ssl_local.h"
static int crypto_send_cb(const unsigned char *buf, size_t buf_len,
size_t *consumed, void *arg)
{
SSL *s = (SSL *)arg;
SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
if (sc == NULL)
return 0;
return sc->qtcb.crypto_send_cb(s, buf, buf_len, consumed, sc->qtarg);
}
static int crypto_recv_rcd_cb(const unsigned char **buf, size_t *bytes_read,
void *arg)
{
SSL *s = (SSL *)arg;
SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
if (sc == NULL)
return 0;
return sc->qtcb.crypto_recv_rcd_cb(s, buf, bytes_read, sc->qtarg);
}
static int crypto_release_rcd_cb(size_t bytes_read, void *arg)
{
SSL *s = (SSL *)arg;
SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
if (sc == NULL)
return 0;
return sc->qtcb.crypto_release_rcd_cb(s, bytes_read, sc->qtarg);
}
static int yield_secret_cb(uint32_t prot_level, int direction,
uint32_t suite_id, EVP_MD *md,
const unsigned char *secret, size_t secret_len,
void *arg)
{
SSL *s = (SSL *)arg;
SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
if (sc == NULL)
return 0;
return sc->qtcb.yield_secret_cb(s, prot_level, direction,
secret, secret_len, sc->qtarg);
}
static int got_transport_params_cb(const unsigned char *params,
size_t params_len,
void *arg)
{
SSL *s = (SSL *)arg;
SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
if (sc == NULL)
return 0;
return sc->qtcb.got_transport_params_cb(s, params, params_len, sc->qtarg);
}
static int alert_cb(void *arg, unsigned char alert_code)
{
SSL *s = (SSL *)arg;
SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
if (sc == NULL)
return 0;
return sc->qtcb.alert_cb(s, alert_code, sc->qtarg);
}
static int tls_callbacks_from_dispatch(OSSL_QUIC_TLS_CALLBACKS *qtcb,
const OSSL_DISPATCH *qtdis)
{
for (; qtdis->function_id != 0; qtdis++) {
switch (qtdis->function_id) {
case OSSL_FUNC_SSL_QUIC_TLS_CRYPTO_SEND:
if (qtcb->crypto_send_cb == NULL)
qtcb->crypto_send_cb = OSSL_FUNC_SSL_QUIC_TLS_crypto_send(qtdis);
break;
case OSSL_FUNC_SSL_QUIC_TLS_CRYPTO_RECV_RCD:
if (qtcb->crypto_recv_rcd_cb == NULL)
qtcb->crypto_recv_rcd_cb = OSSL_FUNC_SSL_QUIC_TLS_crypto_recv_rcd(qtdis);
break;
case OSSL_FUNC_SSL_QUIC_TLS_CRYPTO_RELEASE_RCD:
if (qtcb->crypto_release_rcd_cb == NULL)
qtcb->crypto_release_rcd_cb = OSSL_FUNC_SSL_QUIC_TLS_crypto_release_rcd(qtdis);
break;
case OSSL_FUNC_SSL_QUIC_TLS_YIELD_SECRET:
if (qtcb->yield_secret_cb == NULL)
qtcb->yield_secret_cb = OSSL_FUNC_SSL_QUIC_TLS_yield_secret(qtdis);
break;
case OSSL_FUNC_SSL_QUIC_TLS_GOT_TRANSPORT_PARAMS:
if (qtcb->got_transport_params_cb == NULL)
qtcb->got_transport_params_cb = OSSL_FUNC_SSL_QUIC_TLS_got_transport_params(qtdis);
break;
case OSSL_FUNC_SSL_QUIC_TLS_ALERT:
if (qtcb->alert_cb == NULL)
qtcb->alert_cb = OSSL_FUNC_SSL_QUIC_TLS_alert(qtdis);
break;
}
}
if (qtcb->crypto_send_cb == NULL
|| qtcb->crypto_recv_rcd_cb == NULL
|| qtcb->crypto_release_rcd_cb == NULL
|| qtcb->yield_secret_cb == NULL
|| qtcb->got_transport_params_cb == NULL
|| qtcb->alert_cb == NULL) {
ERR_raise(ERR_LIB_SSL, SSL_R_MISSING_QUIC_TLS_FUNCTIONS);
return 0;
}
return 1;
}
int SSL_set_quic_tls_cbs(SSL *s, const OSSL_DISPATCH *qtdis, void *arg)
{
SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
QUIC_TLS_ARGS qtlsargs;
if (!SSL_is_tls(s)) {
ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return 0;
}
if (!tls_callbacks_from_dispatch(&sc->qtcb, qtdis))
/* ERR_raise already called */
return 0;
sc->qtarg = arg;
ossl_quic_tls_free(sc->qtls);
qtlsargs.s = s;
qtlsargs.crypto_send_cb = crypto_send_cb;
qtlsargs.crypto_send_cb_arg = s;
qtlsargs.crypto_recv_rcd_cb = crypto_recv_rcd_cb;
qtlsargs.crypto_recv_rcd_cb_arg = s;
qtlsargs.crypto_release_rcd_cb = crypto_release_rcd_cb;
qtlsargs.crypto_release_rcd_cb_arg = s;
qtlsargs.yield_secret_cb = yield_secret_cb;
qtlsargs.yield_secret_cb_arg = s;
qtlsargs.got_transport_params_cb = got_transport_params_cb;
qtlsargs.got_transport_params_cb_arg = s;
qtlsargs.handshake_complete_cb = NULL;
qtlsargs.handshake_complete_cb_arg = NULL;
qtlsargs.alert_cb = alert_cb;
qtlsargs.alert_cb_arg = s;
qtlsargs.is_server = sc->server;
qtlsargs.ossl_quic = 0;
sc->qtls = ossl_quic_tls_new(&qtlsargs);
if (sc->qtls == NULL)
return 0;
if (!ossl_quic_tls_configure(sc->qtls))
return 0;
return 1;
}
int SSL_set_quic_tls_transport_params(SSL *s,
const unsigned char *params,
size_t params_len)
{
SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
if (sc == NULL)
return 0;
if (sc->qtls == NULL) {
ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return 0;
}
return ossl_quic_tls_set_transport_params(sc->qtls, params, params_len);
}
int SSL_set_quic_tls_early_data_enabled(SSL *s, int enabled)
{
SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s);
if (!SSL_is_tls(s)) {
ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return 0;
}
if (sc->qtls == NULL) {
ERR_raise(ERR_LIB_SSL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
return 0;
}
return ossl_quic_tls_set_early_data_enabled(sc->qtls, enabled);
}
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