Stuart Stanley's ISIS dissection support.

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@1340 f5534014-38df-0310-8fa8-9805f1628bb7

1 files changed, 102 insertions, 0 deletions

diff --git a/packet-isis-snp.h b/packet-isis-snp.h
new file mode 100644
index 0000000000..15b7a92e44
--- /dev/null
+++ b/packet-isis-snp.h
@@ -0,0 +1,102 @@
+/* packet-isis-snp.h
+ * Defines and such for CSNP, PSNP, and their payloads
+ *
+ * $Id: packet-isis-snp.h,v 1.1 1999/12/15 04:34:19 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_SNP_H
+#define _PACKET_ISIS_SNP_H
+
+/*
+ * Note, the spec say 133 for authentication, but everyone seems to use 10. 
+ * Any clue on why this is would be appreciated!
+ */
+
+/*
+ * detail cvls information for L1 CSNP packets
+ */
+#define ISIS_CLV_L1_CSNP_LSP_ENTRIES		9
+#define ISIS_CLV_L1_CSNP_AUTHENTICATION_NS	10
+#define ISIS_CLV_L1_CSNP_AUTHENTICATION		133
+
+/*
+ * detail cvls information for L2 CSNP packets
+ */
+#define ISIS_CLV_L2_CSNP_LSP_ENTRIES		9
+#define ISIS_CLV_L2_CSNP_AUTHENTICATION_NS	10
+#define ISIS_CLV_L2_CSNP_AUTHENTICATION		133
+
+/*
+ * detail cvls information for L1 PSNP packets
+ */
+#define ISIS_CLV_L1_PSNP_LSP_ENTRIES		9
+#define ISIS_CLV_L1_PSNP_AUTHENTICATION_NS	10
+#define ISIS_CLV_L1_PSNP_AUTHENTICATION		133
+
+/*
+ * detail cvls information for L2 PSNP packets
+ */
+#define ISIS_CLV_L2_PSNP_LSP_ENTRIES		9
+#define ISIS_CLV_L2_PSNP_AUTHENTICATION_NS	10
+#define ISIS_CLV_L2_PSNP_AUTHENTICATION		133
+
+/*
+ * Declare L1/L2 CSNP header
+ */
+typedef struct {
+	guint8	isis_csnp_pdu_length[2];	/* pdu length including hdr */
+	guint8	isis_csnp_source_id[7];		/* source sysid */
+	isis_lsp_id_t isis_csnp_start_lsp_id;		/* start LSP id */
+	isis_lsp_id_t isis_csnp_end_lsp_id;		/* end LSP id */
+} isis_csnp_t;
+
+/*
+ * Declare L1/L2 PSNP header
+ */
+typedef struct {
+	guint8	isis_psnp_pdu_length[2];	/* pdu length including hdr */
+	guint8	isis_psnp_source_id[7];		/* source sysid */
+} isis_psnp_t;
+
+/*
+ * Declare SNP payload element
+ */
+typedef struct {
+	guint8	isis_snp_remaining_lifetime[2];	/* lifetime of LSP */
+	isis_lsp_id_t isis_snp_lsp_id;		/* target LSP id */
+	guint8	isis_snp_sequence_number[4];	/* sequence number of LSP */
+	guint8	isis_snp_checksum[2];		/* checksum of LSP */
+} isis_snp_t;
+
+/*
+ * Published API functions.  NOTE, this are "local" API functions and
+ * are only valid from with isis decodes.
+ */
+extern void isis_dissect_isis_csnp(int type, int header_length,
+        const u_char *pd, int offset, frame_data *fd, proto_tree *tree);
+extern void isis_dissect_isis_psnp(int type, int header_length,
+        const u_char *pd, int offset, frame_data *fd, proto_tree *tree);
+
+#endif /* _PACKET_ISIS_CSNP_H */