TLS: Reject subject_match, altsubject_match, suffix_match

Validation of these parameters has not been implemented in the internal
TLS implementation. Instead of ignoring them silently, reject the
configuration to avoid giving incorrect impression of the parameters
being used if wpa_supplicant is built with the internal TLS
implementation instead of the default OpenSSL.

Signed-off-by: Jouni Malinen <j@w1.fi>

src/crypto/tls_internal.c

@@ -190,6 +190,21 @@ int tls_connection_set_params(void *tls_ctx, struct tls_connection *conn,
 	if (cred == NULL)
 		return -1;
 
+	if (params->subject_match) {
+		wpa_printf(MSG_INFO, "TLS: subject_match not supported");
+		return -1;
+	}
+
+	if (params->altsubject_match) {
+		wpa_printf(MSG_INFO, "TLS: altsubject_match not supported");
+		return -1;
+	}
+
+	if (params->suffix_match) {
+		wpa_printf(MSG_INFO, "TLS: suffix_match not supported");
+		return -1;
+	}
+
 	if (tlsv1_set_ca_cert(cred, params->ca_cert,
 			      params->ca_cert_blob, params->ca_cert_blob_len,
 			      params->ca_path)) {