Make Alert a first class object ala Version. Move the alert codes into

the Alert class for namespacing.

1 files changed, 101 insertions, 0 deletions

diff --git a/src/tls/tls_alert.h b/src/tls/tls_alert.h
new file mode 100644
index 000000000..5a888805e
--- /dev/null
+++ b/src/tls/tls_alert.h
@@ -0,0 +1,101 @@
+/*
+* Alert Message
+* (C) 2004-2006,2011 Jack Lloyd
+*
+* Released under the terms of the Botan license
+*/
+
+#ifndef BOTAN_TLS_ALERT_H__
+#define BOTAN_TLS_ALERT_H__
+
+#include <botan/secmem.h>
+#include <string>
+
+namespace Botan {
+
+namespace TLS {
+
+/**
+* SSL/TLS Alert Message
+*/
+class Alert
+   {
+   public:
+      enum Level {
+         WARNING                 = 1,
+         FATAL                   = 2
+      };
+
+      enum Type {
+         CLOSE_NOTIFY            = 0,
+         UNEXPECTED_MESSAGE      = 10,
+         BAD_RECORD_MAC          = 20,
+         DECRYPTION_FAILED       = 21,
+         RECORD_OVERFLOW         = 22,
+         DECOMPRESSION_FAILURE   = 30,
+         HANDSHAKE_FAILURE       = 40,
+         NO_CERTIFICATE          = 41, // SSLv3 only
+         BAD_CERTIFICATE         = 42,
+         UNSUPPORTED_CERTIFICATE = 43,
+         CERTIFICATE_REVOKED     = 44,
+         CERTIFICATE_EXPIRED     = 45,
+         CERTIFICATE_UNKNOWN     = 46,
+         ILLEGAL_PARAMETER       = 47,
+         UNKNOWN_CA              = 48,
+         ACCESS_DENIED           = 49,
+         DECODE_ERROR            = 50,
+         DECRYPT_ERROR           = 51,
+         EXPORT_RESTRICTION      = 60,
+         PROTOCOL_VERSION        = 70,
+         INSUFFICIENT_SECURITY   = 71,
+         INTERNAL_ERROR          = 80,
+         USER_CANCELED           = 90,
+         NO_RENEGOTIATION        = 100,
+
+         UNSUPPORTED_EXTENSION   = 110,
+         UNRECOGNIZED_NAME       = 112,
+
+         UNKNOWN_PSK_IDENTITY    = 115,
+
+         NULL_ALERT              = 255
+      };
+
+      /**
+      * @return true iff this alert is non-empty
+      */
+      bool is_valid() const { return (type_code != NULL_ALERT); }
+
+      /**
+      * @return if this alert is a fatal one or not
+      */
+      bool is_fatal() const { return fatal; }
+
+      /**
+      * @return type of alert
+      */
+      Type type() const { return type_code; }
+
+      /**
+      * @return type of alert
+      */
+      std::string type_string() const;
+
+      /**
+      * Deserialize an Alert message
+      * @param buf the serialized alert
+      */
+      Alert(const MemoryRegion<byte>& buf);
+
+      Alert(Level level, Type code) : fatal(level == FATAL), type_code(code) {}
+
+      Alert() : fatal(false), type_code(NULL_ALERT) {}
+   private:
+      bool fatal;
+      Type type_code;
+   };
+
+}
+
+}
+
+#endif