BUILD: ssl: fix compatibility with openssl without TLSEXT_signature_*

In openssl < 1.0.1, TLSEXT_signature_* is undefined. Add TLSEXT signatures
(RFC 5246) when TLSEXT_signature_anonymous is undefined.

diff --git a/include/proto/openssl-compat.h b/include/proto/openssl-compat.h
index 6ff4fdd..a1e75b4 100644 (file)
--- a/include/proto/openssl-compat.h
+++ b/include/proto/openssl-compat.h
@@ -192,4 +192,13 @@ static inline int EVP_PKEY_base_id(EVP_PKEY *pkey)
 #define RAND_pseudo_bytes(x,y) RAND_bytes(x,y)
 #endif
 
+
+/* Signature from RFC 5246, missing in openssl < 1.0.1 */
+#ifndef TLSEXT_signature_anonymous
+#define TLSEXT_signature_anonymous  0
+#define TLSEXT_signature_rsa        1
+#define TLSEXT_signature_dsa        2
+#define TLSEXT_signature_ecdsa      3
+#endif
+
 #endif /* _PROTO_OPENSSL_COMPAT_H */