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/*******************************************************************************
*
* Copyright (c) 2011, 2012, 2013, 2014, 2015 Olaf Bergmann (TZI) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
*
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Olaf Bergmann - initial API and implementation
* Hauke Mehrtens - memory optimization, ECC integration
*
*******************************************************************************/
/**
* @file alert.h
* @brief DTLS alert protocol
*/
#ifndef _DTLS_ALERT_H_
#define _DTLS_ALERT_H_
typedef enum {
DTLS_ALERT_LEVEL_WARNING=1,
DTLS_ALERT_LEVEL_FATAL=2
} dtls_alert_level_t;
typedef enum {
DTLS_ALERT_CLOSE_NOTIFY = 0, /* close_notify */
DTLS_ALERT_UNEXPECTED_MESSAGE = 10, /* unexpected_message */
DTLS_ALERT_BAD_RECORD_MAC = 20, /* bad_record_mac */
DTLS_ALERT_RECORD_OVERFLOW = 22, /* record_overflow */
DTLS_ALERT_DECOMPRESSION_FAILURE = 30, /* decompression_failure */
DTLS_ALERT_HANDSHAKE_FAILURE = 40, /* handshake_failure */
DTLS_ALERT_BAD_CERTIFICATE = 42, /* bad_certificate */
DTLS_ALERT_UNSUPPORTED_CERTIFICATE = 43, /* unsupported_certificate */
DTLS_ALERT_CERTIFICATE_REVOKED = 44, /* certificate_revoked */
DTLS_ALERT_CERTIFICATE_EXPIRED = 45, /* certificate_expired */
DTLS_ALERT_CERTIFICATE_UNKNOWN = 46, /* certificate_unknown */
DTLS_ALERT_ILLEGAL_PARAMETER = 47, /* illegal_parameter */
DTLS_ALERT_UNKNOWN_CA = 48, /* unknown_ca */
DTLS_ALERT_ACCESS_DENIED = 49, /* access_denied */
DTLS_ALERT_DECODE_ERROR = 50, /* decode_error */
DTLS_ALERT_DECRYPT_ERROR = 51, /* decrypt_error */
DTLS_ALERT_PROTOCOL_VERSION = 70, /* protocol_version */
DTLS_ALERT_INSUFFICIENT_SECURITY = 71, /* insufficient_security */
DTLS_ALERT_INTERNAL_ERROR = 80, /* internal_error */
DTLS_ALERT_USER_CANCELED = 90, /* user_canceled */
DTLS_ALERT_NO_RENEGOTIATION = 100, /* no_renegotiation */
DTLS_ALERT_UNSUPPORTED_EXTENSION = 110 /* unsupported_extension */
} dtls_alert_t;
#define DTLS_EVENT_CONNECT 0x01DC /**< initiated handshake */
#define DTLS_EVENT_CONNECTED 0x01DE /**< handshake or re-negotiation
* has finished */
static inline int
dtls_alert_create(dtls_alert_level_t level, dtls_alert_t desc)
{
return -((level << 8) | desc);
}
static inline int
dtls_alert_fatal_create(dtls_alert_t desc)
{
return dtls_alert_create(DTLS_ALERT_LEVEL_FATAL, desc);
}
/**
* Test, if error code represents an alert.
*
* \param err error code
* \return 0 (false), if not, not 0 (true), if it represents an alert.
*/
static inline int
dtls_is_alert(int err)
{
return (err < -(1 << 8) && err > -(3 << 8));
}
#endif /* _DTLS_ALERT_H_ */