diff --git a/wolfssl/ssl.h b/wolfssl/ssl.h
index 5db4f8270..282a4b060 100644
--- a/wolfssl/ssl.h
+++ b/wolfssl/ssl.h
@@ -806,6 +806,9 @@ enum {
     SSL_CB_ALERT   = 7,
     SSL_CB_READ    = 8,
     SSL_CB_HANDSHAKE_DONE = 9,
+    /* additional SSL_CB_* enums not used in wolfSSL */
+    SSL_CB_HANDSHAKE_START,
+    SSL_CB_EXIT,
 
     SSL_MODE_ENABLE_PARTIAL_WRITE = 2,
 
@@ -819,6 +822,7 @@ enum {
     X509_LU_X509      = 9,
     X509_LU_CRL       = 12,
 
+    X509_V_OK = 0,
     X509_V_ERR_CRL_SIGNATURE_FAILURE = 13,
     X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD = 14,
     X509_V_ERR_CRL_HAS_EXPIRED                = 15,
@@ -830,7 +834,39 @@ enum {
     X509_V_ERR_CERT_HAS_EXPIRED               = 21,
     X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD  = 22,
     X509_V_ERR_CERT_REJECTED                  = 23,
-    X509_V_OK = 0,
+    /* additional X509_V_ERR_* enums not used in wolfSSL */
+    X509_V_ERR_UNABLE_TO_GET_CRL,
+    X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE,
+    X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE,
+    X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY,
+    X509_V_ERR_CERT_SIGNATURE_FAILURE,
+    X509_V_ERR_CRL_NOT_YET_VALID,
+    X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD,
+    X509_V_ERR_OUT_OF_MEM,
+    X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT,
+    X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN,
+    X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY,
+    X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE,
+    X509_V_ERR_INVALID_CA,
+    X509_V_ERR_PATH_LENGTH_EXCEEDED,
+    X509_V_ERR_INVALID_PURPOSE,
+    X509_V_ERR_CERT_UNTRUSTED,
+    X509_V_ERR_SUBJECT_ISSUER_MISMATCH,
+    X509_V_ERR_AKID_SKID_MISMATCH,
+    X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH,
+    X509_V_ERR_KEYUSAGE_NO_CERTSIGN,
+    X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER,
+    X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION,
+    X509_V_ERR_KEYUSAGE_NO_CRL_SIGN,
+    X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION,
+    X509_V_ERR_INVALID_NON_CA,
+    X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED,
+    X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE,
+    X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED,
+    X509_V_ERR_INVALID_EXTENSION,
+    X509_V_ERR_INVALID_POLICY_EXTENSION,
+    X509_V_ERR_NO_EXPLICIT_POLICY,
+    X509_V_ERR_UNNESTED_RESOURCE,
 
     XN_FLAG_SPC_EQ  = (1 << 23),
     XN_FLAG_ONELINE = 0,