Forbid sequence number wrapping
diff --git a/include/polarssl/ssl.h b/include/polarssl/ssl.h
index ad85924..1e52229 100644
--- a/include/polarssl/ssl.h
+++ b/include/polarssl/ssl.h
@@ -91,6 +91,7 @@
#define POLARSSL_ERR_SSL_HW_ACCEL_FALLTHROUGH -0x6F80 /**< Hardware acceleration function skipped / left alone data */
#define POLARSSL_ERR_SSL_COMPRESSION_FAILED -0x6F00 /**< Processing of the compression / decompression failed */
#define POLARSSL_ERR_SSL_BAD_HS_PROTOCOL_VERSION -0x6E80 /**< Handshake protocol not within min/max boundaries */
+#define POLARSSL_ERR_SSL_COUNTER_WRAPPING -0x6B80 /**< A counter would wrap (eg, too many messages exchanged). */
/*
* Various constants