1 files changed, 6 insertions, 1 deletions
diff --git a/sk-api.h b/sk-api.h
index 4f9f43ee..dc786d55 100644
--- a/sk-api.h
+++ b/sk-api.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: sk-api.h,v 1.5 2019/12/30 09:23:28 djm Exp $ */
+/* $OpenBSD: sk-api.h,v 1.6 2019/12/30 09:24:45 djm Exp $ */
 /*
  * Copyright (c) 2019 Google LLC
  *
@@ -32,6 +32,11 @@
 #define SSH_SK_ECDSA			0x00
 #define SSH_SK_ED25519			0x01
 
+/* Error codes */
+#define SSH_SK_ERR_GENERAL		-1
+#define SSH_SK_ERR_UNSUPPORTED		-2
+#define SSH_SK_ERR_PIN_REQUIRED		-3
+
 struct sk_enroll_response {
 	uint8_t *public_key;
 	size_t public_key_len;