1 /*******************************************************************************
2 *
3 * Copyright (c) 2011, 2012, 2013, 2014, 2015 Olaf Bergmann (TZI) and others.
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * and Eclipse Distribution License v. 1.0 which accompanies this distribution.
7 *
8 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
9 * and the Eclipse Distribution License is available at
10 * http://www.eclipse.org/org/documents/edl-v10.php.
11 *
12 * Contributors:
13 * Olaf Bergmann - initial API and implementation
14 * Hauke Mehrtens - memory optimization, ECC integration
15 *
16 *******************************************************************************/
17
18 /**
19 * @file alert.h
20 * @brief DTLS alert protocol
21 */
22
23 #ifndef _DTLS_ALERT_H_
24 #define _DTLS_ALERT_H_
25
26 typedef enum {
27 DTLS_ALERT_LEVEL_WARNING=1,
28 DTLS_ALERT_LEVEL_FATAL=2
29 } dtls_alert_level_t;
30
31 typedef enum {
32 DTLS_ALERT_CLOSE_NOTIFY = 0, /* close_notify */
33 DTLS_ALERT_UNEXPECTED_MESSAGE = 10, /* unexpected_message */
34 DTLS_ALERT_BAD_RECORD_MAC = 20, /* bad_record_mac */
35 DTLS_ALERT_RECORD_OVERFLOW = 22, /* record_overflow */
36 DTLS_ALERT_DECOMPRESSION_FAILURE = 30, /* decompression_failure */
37 DTLS_ALERT_HANDSHAKE_FAILURE = 40, /* handshake_failure */
38 DTLS_ALERT_BAD_CERTIFICATE = 42, /* bad_certificate */
39 DTLS_ALERT_UNSUPPORTED_CERTIFICATE = 43, /* unsupported_certificate */
40 DTLS_ALERT_CERTIFICATE_REVOKED = 44, /* certificate_revoked */
41 DTLS_ALERT_CERTIFICATE_EXPIRED = 45, /* certificate_expired */
42 DTLS_ALERT_CERTIFICATE_UNKNOWN = 46, /* certificate_unknown */
43 DTLS_ALERT_ILLEGAL_PARAMETER = 47, /* illegal_parameter */
44 DTLS_ALERT_UNKNOWN_CA = 48, /* unknown_ca */
45 DTLS_ALERT_ACCESS_DENIED = 49, /* access_denied */
46 DTLS_ALERT_DECODE_ERROR = 50, /* decode_error */
47 DTLS_ALERT_DECRYPT_ERROR = 51, /* decrypt_error */
48 DTLS_ALERT_PROTOCOL_VERSION = 70, /* protocol_version */
49 DTLS_ALERT_INSUFFICIENT_SECURITY = 71, /* insufficient_security */
50 DTLS_ALERT_INTERNAL_ERROR = 80, /* internal_error */
51 DTLS_ALERT_USER_CANCELED = 90, /* user_canceled */
52 DTLS_ALERT_NO_RENEGOTIATION = 100, /* no_renegotiation */
53 DTLS_ALERT_UNSUPPORTED_EXTENSION = 110 /* unsupported_extension */
54 } dtls_alert_t;
55
56 #define DTLS_EVENT_CONNECT 0x01DC /**< initiated handshake */
57 #define DTLS_EVENT_CONNECTED 0x01DE /**< handshake or re-negotiation
58 * has finished */
59 #define DTLS_EVENT_RENEGOTIATE 0x01DF /**< re-negotiation has started */
60
61 static inline int
dtls_alert_create(dtls_alert_level_t level,dtls_alert_t desc)62 dtls_alert_create(dtls_alert_level_t level, dtls_alert_t desc)
63 {
64 return -((level << 8) | desc);
65 }
66
67 static inline int
dtls_alert_fatal_create(dtls_alert_t desc)68 dtls_alert_fatal_create(dtls_alert_t desc)
69 {
70 return dtls_alert_create(DTLS_ALERT_LEVEL_FATAL, desc);
71 }
72
73 #endif /* _DTLS_ALERT_H_ */
74