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/*
* 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 BOTAN_DLL Alert
{
public:
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(Type alert_type, bool is_fatal = false) :
fatal(is_fatal), type_code(alert_type) {}
Alert() : fatal(false), type_code(NULL_ALERT) {}
private:
bool fatal;
Type type_code;
};
}
}
#endif
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