Stuart Stanley's ISIS dissection support.

svn path=/trunk/; revision=1340

1 files changed, 112 insertions, 0 deletions

diff --git a/packet-isis-hello.h b/packet-isis-hello.h
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+++ b/packet-isis-hello.h
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+/* packet-isis-hello.h
+ * Declares for hello handling inside isis.
+ *
+ * $Id: packet-isis-hello.h,v 1.1 1999/12/15 04:34:18 guy Exp $
+ * Stuart Stanley <stuarts@mxmail.net>
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@zing.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ *
+ */
+
+#ifndef _PACKET_ISIS_HELLO_H
+#define _PACKET_ISIS_HELLO_H
+
+/*
+ * Declare L1/L2 hello base header.  
+ */
+typedef struct {
+	guint8	isis_hello_circuit_reserved;	/* circuit type & reserved */
+#define ISIS_HELLO_CTYPE_MASK		0x03
+#define ISIS_HELLO_CT_RESERVED_MASK	0xfc
+	guint8	isis_hello_source_id[6];	/* source id */
+	guint8	isis_hello_holding_timer[2];	/* holding timer */
+	guint8	isis_hello_pdu_length[2];	/* full length, including hdr */
+	guint8	isis_hello_priority_reserved;	/* priority & reserved */
+#define ISIS_HELLO_PRIORITY_MASK	0x7f
+#define ISIS_HELLO_P_RESERVED_MASK	0x80
+	guint8	isis_hello_lan_id[7];		/* LAN id */
+} isis_hello_t;
+
+#define isis_hello_circuit isis_hello_circuit_reserved&ISIS_HELLO_CTYPE_MASK
+#define isis_hello_creserved \
+	isis_hello_circuit_reserved&ISIS_HELLO_CT_RESERVED_MASK
+
+#define isis_hello_priority \
+	isis_hello_priority_reserved&ISIS_HELLO_PRIORITY_MASK
+#define isis_hello_preserved \
+	isis_hello_priority_reserved&ISIS_HELLO_P_RESERVED_MASK
+
+#define ISIS_HELLO_TYPE_RESERVED	0
+#define ISIS_HELLO_TYPE_LEVEL_1		1
+#define ISIS_HELLO_TYPE_LEVEL_2		2
+#define ISIS_HELLO_TYPE_LEVEL_12	3
+
+/*
+ * detail clv information on l1 hello packets
+ */
+#define ISIS_CLV_L1H_AREA_ADDRESS	1
+#define ISIS_CLV_L1H_IS_NEIGHBORS	6
+#define ISIS_CLV_L1H_PADDING		8
+#define ISIS_CLV_L1H_NLPID		129
+#define ISIS_CLV_L1H_IP_INTERFACE_ADDR	132
+/*
+ * Note, the spec say 133, but everyone seems to use 10. Any clue on why
+ * this is would be appreciated!
+ */
+#define ISIS_CLV_L1H_AUTHENTICATION_NS	10	/*non spec */
+#define ISIS_CLV_L1H_AUTHENTICATION	133
+
+/*
+ * detail clv information on l2 hello packets
+ */
+#define ISIS_CLV_L2H_AREA_ADDRESS	1
+#define ISIS_CLV_L2H_IS_NEIGHBORS	6
+#define ISIS_CLV_L2H_PADDING		8
+#define ISIS_CLV_L2H_NLPID		129
+#define ISIS_CLV_L2H_IP_INTERFACE_ADDR	132
+/*
+ * Note, the spec say 133, but everyone seems to use 10. Any clue on why
+ * this is would be appreciated!
+ */
+#define ISIS_CLV_L2H_AUTHENTICATION_NS	10	/*non spec */
+#define ISIS_CLV_L2H_AUTHENTICATION	133
+
+/*
+ * detail clv information on PTP hello packets
+ */
+#define ISIS_CLV_PTP_AREA_ADDRESS	1
+#define ISIS_CLV_PTP_PADDING		8
+#define ISIS_CLV_PTP_NLPID		129
+#define ISIS_CLV_PTP_IP_INTERFACE_ADDR	132
+/*
+ * Note, the spec say 133, but everyone seems to use 10. Any clue on why
+ * this is would be appreciated!
+ */
+#define ISIS_CLV_PTP_AUTHENTICATION_NS	10	/*non spec */
+#define ISIS_CLV_PTP_AUTHENTICATION	133
+
+/*
+ * Published API functions.  NOTE, this are "local" API functions and
+ * are only valid from with isis decodes.
+ */
+extern void isis_dissect_isis_hello(int hello_type, int header_length,
+	const u_char *pd, int offset, frame_data *fd, proto_tree *tree);
+#endif /* _PACKET_ISIS_HELLO_H */