suricata checkin based on commit id a4bce14770beee46a537eda3c3f6e8e8565d5d0a

Change-Id: I9a214fa0ee95e58fc640e50bd604dac7f42db48f

1 files changed, 96 insertions, 0 deletions

diff --git a/framework/src/suricata/src/util-decode-der.h b/framework/src/suricata/src/util-decode-der.h
new file mode 100644
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+++ b/framework/src/suricata/src/util-decode-der.h
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+/*
+ * Copyright (C) 2011-2012 ANSSI
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * \file
+ *
+ * \author Pierre Chifflier <pierre.chifflier@ssi.gouv.fr>
+ *
+ */
+
+#ifndef __UTIL_DECODE_DER_H__
+#define __UTIL_DECODE_DER_H__
+
+#define ASN1_CLASS_UNIVERSAL   0
+#define ASN1_CLASS_APPLICATION 1
+#define ASN1_CLASS_CONTEXTSPEC 2
+#define ASN1_CLASS_PRIVATE     3
+
+#define ASN1_UNKNOWN        0
+#define ASN1_BOOLEAN     0x01
+#define ASN1_INTEGER     0x02
+#define ASN1_BITSTRING   0x03
+#define ASN1_OCTETSTRING 0x04
+#define ASN1_NULL        0x05
+#define ASN1_OID         0x06
+#define ASN1_UTF8STRING  0x0c
+#define ASN1_SEQUENCE    0x10
+#define ASN1_SET         0x11
+#define ASN1_PRINTSTRING 0x13
+#define ASN1_T61STRING   0x14
+#define ASN1_IA5STRING   0x16
+#define ASN1_UTCTIME     0x17
+
+typedef struct Asn1ElementType_ {
+	uint8_t cls:2;
+	uint8_t pc:1;
+	uint8_t tag:5;
+} __attribute__((packed)) Asn1ElementType;
+
+/* Generic ASN.1 element
+ * Presence and meaning of fields depends on the header and type values.
+ */
+typedef struct Asn1Generic_ {
+	Asn1ElementType header;
+	uint8_t type;
+	uint32_t length; /* length of node, including header */
+
+	struct Asn1Generic_ *data; /* only if type is structured */
+
+	char *str;
+	uint32_t strlen;
+	uint64_t value;
+	struct Asn1Generic_ *next; /* only if type is sequence */
+} Asn1Generic;
+
+/* Generic error */
+#define ERR_DER_GENERIC               0x01
+/* Unknown ASN.1 element type */
+#define ERR_DER_UNKNOWN_ELEMENT       0x02
+/* One element requires to read more bytes than available */
+#define ERR_DER_ELEMENT_SIZE_TOO_BIG  0x03
+/* One element size is invalid (more than 4 bytes long) */
+#define ERR_DER_INVALID_SIZE          0x04
+/* Unsupported string type */
+#define ERR_DER_UNSUPPORTED_STRING    0x05
+/* Missing field or element */
+#define ERR_DER_MISSING_ELEMENT       0x06
+
+Asn1Generic * DecodeDer(const unsigned char *buffer, uint32_t size, uint32_t *errcode);
+void DerFree(Asn1Generic *a);
+
+#endif /* __UTIL_DECODE_DER_H__ */