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diff --git a/include/proto/openssl-compat.h b/include/proto/openssl-compat.h
index b6fe1d2..551cae2 100644
--- a/include/proto/openssl-compat.h
+++ b/include/proto/openssl-compat.h
@@ -89,7 +89,7 @@ static inline int SSL_SESSION_set1_id_context(SSL_SESSION *s, const unsigned cha
}
#endif
-#if (OPENSSL_VERSION_NUMBER < 0x1010000fL) || defined(LIBRESSL_VERSION_NUMBER) || defined(OPENSSL_IS_BORINGSSL)
+#if (OPENSSL_VERSION_NUMBER < 0x1010000fL) || (defined(LIBRESSL_VERSION_NUMBER) && (LIBRESSL_VERSION_NUMBER < 0x20700000L)) || defined(OPENSSL_IS_BORINGSSL)
/*
* Functions introduced in OpenSSL 1.1.0 and not yet present in LibreSSL / BoringSSL
*/
@@ -121,7 +121,7 @@ static inline const OCSP_CERTID *OCSP_SINGLERESP_get0_id(const OCSP_SINGLERESP *
#endif
-#if (OPENSSL_VERSION_NUMBER < 0x1010000fL) || defined(LIBRESSL_VERSION_NUMBER)
+#if (OPENSSL_VERSION_NUMBER < 0x1010000fL) || (defined(LIBRESSL_VERSION_NUMBER) && (LIBRESSL_VERSION_NUMBER < 0x20700000L))
/*
* Functions introduced in OpenSSL 1.1.0 and not yet present in LibreSSL
*/
diff --git a/src/ssl_sock.c b/src/ssl_sock.c
index c2b5bf6..ebde76d 100644
--- a/src/ssl_sock.c
+++ b/src/ssl_sock.c
@@ -56,6 +56,14 @@
#include <openssl/engine.h>
#endif
+#if defined(LIBRESSL_VERSION_NUMBER) && !defined(OPENSSL_NO_ASYNC)
+#define OPENSSL_NO_ASYNC
+#endif
+
+#if defined(SSL_READ_EARLY_DATA_ERROR) && defined(SSL_READ_EARLY_DATA_SUCCESS)
+#define HAVE_SSL_READ_EARLY
+#endif
+
#if (OPENSSL_VERSION_NUMBER >= 0x1010000fL) && !defined(OPENSSL_NO_ASYNC)
#include <openssl/async.h>
#endif
@@ -2066,7 +2074,7 @@ static void ssl_sock_switchctx_set(SSL *ssl, SSL_CTX *ctx)
SSL_set_SSL_CTX(ssl, ctx);
}
-#if (OPENSSL_VERSION_NUMBER >= 0x10101000L) || defined(OPENSSL_IS_BORINGSSL)
+#if ((OPENSSL_VERSION_NUMBER >= 0x10101000L) || defined(OPENSSL_IS_BORINGSSL)) && !defined(LIBRESSL_VERSION_NUMBER)
static int ssl_sock_switchctx_err_cbk(SSL *ssl, int *al, void *priv)
{
@@ -3798,7 +3806,7 @@ ssl_sock_initial_ctx(struct bind_conf *bind_conf)
#ifdef OPENSSL_IS_BORINGSSL
SSL_CTX_set_select_certificate_cb(ctx, ssl_sock_switchctx_cbk);
SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_err_cbk);
-#elif (OPENSSL_VERSION_NUMBER >= 0x10101000L)
+#elif (OPENSSL_VERSION_NUMBER >= 0x10101000L) && !defined(LIBRESSL_VERSION_NUMBER)
SSL_CTX_set_client_hello_cb(ctx, ssl_sock_switchctx_cbk, NULL);
SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_err_cbk);
#else
@@ -5052,7 +5060,7 @@ int ssl_sock_handshake(struct connection *conn, unsigned int flag)
if (!conn->xprt_ctx)
goto out_error;
-#if OPENSSL_VERSION_NUMBER >= 0x10101000L
+#if HAVE_SSL_READ_EARLY
/*
* Check if we have early data. If we do, we have to read them
* before SSL_do_handshake() is called, And there's no way to
@@ -5252,7 +5260,7 @@ check_error:
goto out_error;
}
}
-#if (OPENSSL_VERSION_NUMBER >= 0x10101000L)
+#if HAVE_SSL_READ_EARLY
else {
/*
* If the server refused the early data, we have to send a
@@ -5375,7 +5383,7 @@ static int ssl_sock_to_buf(struct connection *conn, struct buffer *buf, int coun
continue;
}
-#if (OPENSSL_VERSION_NUMBER >= 0x10101000L)
+#if OPENSSL_READ_EARLY
if (conn->flags & CO_FL_EARLY_SSL_HS) {
size_t read_length;
@@ -5512,7 +5520,7 @@ static int ssl_sock_from_buf(struct connection *conn, struct buffer *buf, int fl
* in which case we accept to do it once again.
*/
while (buf->o) {
-#if (OPENSSL_VERSION_NUMBER >= 0x10101000L)
+#if HAVE_SSL_EARLY_DATA
size_t written_data;
#endif
@@ -5531,7 +5539,7 @@ static int ssl_sock_from_buf(struct connection *conn, struct buffer *buf, int fl
conn->xprt_st |= SSL_SOCK_SEND_UNLIMITED;
}
-#if (OPENSSL_VERSION_NUMBER >= 0x10101000L)
+#if HAVE_SSL_EARLY_DATA
if (!SSL_is_init_finished(conn->xprt_ctx)) {
unsigned int max_early;
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