alert protocol definitions

Makefile.in

@@ -39,7 +39,7 @@ package = @PACKAGE_TARNAME@-@PACKAGE_VERSION@
 SOURCES:= dtls.c crypto.c ccm.c hmac.c debug.c netq.c
 OBJECTS:= $(patsubst %.c, %.o, $(SOURCES)) aes/rijndael.o @OPT_OBJS@
 HEADERS:=dtls.h hmac.h debug.h config.h uthash.h numeric.h crypto.h global.h ccm.h \
- netq.h t_list.h
+ netq.h t_list.h alert.h
 CFLAGS:=-Wall -pedantic -std=c99 @CFLAGS@
 CPPFLAGS:=@CPPFLAGS@ -DDTLS_CHECK_CONTENTTYPE
 SUBDIRS:=tests doc sha2 aes

alert.h

@@ -0,0 +1,62 @@
+/* alert.h -- DTLS alert protocol
+ *
+ * Copyright (C) 2012 Olaf Bergmann <[email protected]>
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/**
+ * @file alert.h
+ * @brief DTLS alert protocol
+ */
+
+#ifndef _ALERT_H_
+#define _ALERT_H_
+
+#include "config.h"
+
+typedef enum {
+  DTLS_ALERT_LEVEL_WARNING=1,
+  DTLS_ALERT_LEVEL_FATAL=2
+} dtls_alert_level_t;
+
+typedef enum {
+  DTLS_ALERT_CLOSE=0,
+  DTLS_ALERT_UNEXPECTED_MESSAGE=10,
+  DTLS_ALERT_BAD_RECORD_MAC=20,
+  DTLS_ALERT_RECORD_OVERFLOW=22,
+  DTLS_ALERT_DECOMPRESSION_FAILURE=30,
+  DTLS_ALERT_HANDSHAKE_FAILURE=40,
+  DTLS_ALERT_ILLEGAL_PARAMETER=47,
+  DTLS_ALERT_ACCESS_DENIED=49,
+  DTLS_ALERT_DECODE_ERROR=50,
+  DTLS_ALERT_DECRYPT_ERROR=51,
+  DTLS_ALERT_PROTOCOL_VERSION=70,
+  DTLS_ALERT_INSUFFICIENT_SECURITY=70,
+  DTLS_ALERT_INTERNAL_ERROR=80,
+  DTLS_ALERT_USER_CANCELED=90,
+  DTLS_ALERT_NO_RENEGOTIATION=100,
+  DTLS_ALERT_UNSUPPORTED_EXTENSION=110
+} dtls_alert_t;
+
+#define DTLS_EVENT_CONNECTED      0x01DE
+
+#endif /* _ALERT_H_ */