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MINOR: quic: add QUIC support when no client_hello_cb

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Add QUIC support to the ssl_sock_switchctx_cbk() variant used only when
no client_hello_cb is available.

This could be used with libreSSL implementation of QUIC for example.
It also works with quictls when HAVE_SSL_CLIENT_HELLO_CB is removed from
openss-compat.h

(cherry picked from commit 70a6e637b47d8e0ccf49dff8e2f3f4bb1a9c0b29)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
This commit is contained in:
William Lallemand 2022-09-07 11:21:34 +02:00 committed by Christopher Faulet
parent 069ad6acc3
commit 1c2991ec14
1 changed files with 28 additions and 0 deletions
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28
src/ssl_sock.c
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@ -2951,9 +2951,37 @@ int ssl_sock_switchctx_cbk(SSL *ssl, int *al, void *priv)
const char *wildp = NULL;
struct ebmb_node *node, *n;
struct bind_conf *s = priv;
#ifdef USE_QUIC
const uint8_t *extension_data;
size_t extension_len;
struct quic_conn *qc = SSL_get_ex_data(ssl, ssl_qc_app_data_index);
#endif /* USE_QUIC */
int i;
(void)al; /* shut gcc stupid warning */
#ifdef USE_QUIC
if (qc) {
/* Look for the QUIC transport parameters. */
SSL_get_peer_quic_transport_params(ssl, &extension_data, &extension_len);
if (extension_len == 0) {
/* This is not redundant. It we only return 0 without setting
* <*al>, this has as side effect to generate another TLS alert
* which would be set after calling quic_set_tls_alert().
*/
*al = SSL_AD_MISSING_EXTENSION;
quic_set_tls_alert(qc, SSL_AD_MISSING_EXTENSION);
return SSL_TLSEXT_ERR_NOACK;
}
if (!quic_transport_params_store(qc, 0, extension_data,
extension_data + extension_len) ||
!qc_conn_finalize(qc, 0)) {
return SSL_TLSEXT_ERR_NOACK;
}
}
#endif /* USE_QUIC */
servername = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
if (!servername) {
#if (!defined SSL_NO_GENERATE_CERTIFICATES)