Header file for various basic CDP (Cisco Discovery Protocol definitions and accessor functions. More...

#include <projectcommon.h>
#include <glib.h>

Include dependency graph for cdp.h:

This graph shows which files directly or indirectly include this file:

Macros
#define	CDP_TLV_DEVID 0x0001
	Hostname of the device or hardware serial number in ASCII. More...

#define	CDP_TLV_ADDRESS 0x0002
	The L3 address of the interface that has sent the update. More...

#define	CDP_TLV_PORTID 0x0003
	The port from which the CDP update has been sent. More...

#define	CDP_TLV_CAPS 0x0004
	Bit mask describing the functional capabilities of the device. More...

#define	CDP_TLV_VERS 0x0005
	A character string containing the software version (same as in show version). More...

#define	CDP_TLV_PLATFORM 0x0006
	Hardware platform, such as WS-C5000, WS-C6009, or Cisco RSP. More...

#define	CDP_TLV_IPPREFIX 0x0007
	4 bytes of IPv4 network prefix + 1 byte of CIDR-style netmask More...

#define	CDP_TLV_HELLO 0x0008
	Protocol-Hello - encapsulates some other protocol. More...

#define	CDP_TLV_VTPDOMAIN 0x0009
	The VTP Domain, if configured on the device. More...

#define	CDP_TLV_NATIVEVLAN 0x000A
	In dot1q, this is the untagged VLAN. More...

#define	CDP_TLV_DUPLEX 0x000B
	This field contains the duplex setting of the sending port. More...

#define	CDP_TLV_APPLID 0x000E
	Appliance ID - auxiliary vlan ID for a VOIP phone. More...

#define	CDP_TLV_POWER 0x0010
	Power consumption in milliwatts. More...

#define	CDP_CAPMASK_ROUTER 0x01
	L3 Router. More...

#define	CDP_CAPMASK_TBBRIDGE 0x02
	TB Bridge. More...

#define	CDP_CAPMASK_SPBRIDGE 0x04
	SP Bridge. More...

#define	CDP_CAPMASK_SWITCH 0x08
	L2 Switch. More...

#define	CDP_CAPMASK_HOST 0x10
	Host. More...

#define	CDP_CAPMASK_IGMPFILTER 0x20
	Does not forward IGMP report packets on non-routerports. More...

#define	CDP_CAPMASK_REPEATER 0x40
	Repeater. More...

Functions
WINEXPORT guint8	get_cdp_vers (gconstpointer pktptr, gconstpointer pktend)

WINEXPORT guint8	get_cdp_ttl (gconstpointer pktptr, gconstpointer pktend)

WINEXPORT guint16	get_cdp_cksum (gconstpointer pktptr, gconstpointer pktend)

WINEXPORT guint16	get_cdptlv_type (gconstpointer tlv_vp, gconstpointer pktend)

WINEXPORT gsize	get_cdptlv_len (gconstpointer tlv_vp, gconstpointer pktend)

WINEXPORT gsize	get_cdptlv_vlen (gconstpointer tlv_vp, gconstpointer pktend)

WINEXPORT gconstpointer	get_cdptlv_body (gconstpointer tlv_vp, gconstpointer pktend)

WINEXPORT gconstpointer	get_cdptlv_first (gconstpointer pkt, gconstpointer pktend)

WINEXPORT gconstpointer	get_cdptlv_next (gconstpointer tlv_vp, gconstpointer pktend)

WINEXPORT gconstpointer	get_cdp_chassis_id (gconstpointer packet, gssize *idlength, gconstpointer pktend)
	Get the chassis ID associated with this CDP packet. More...

WINEXPORT gconstpointer	get_cdp_port_id (gconstpointer packet, gssize *idlength, gconstpointer pktend)
	get the port ID associated with this CDP packet More...

WINEXPORT gboolean	is_valid_cdp_packet (gconstpointer packet, gconstpointer pktend)

WINEXPORT gboolean	enable_cdp_packets (gboolean enableme)

Detailed Description

Header file for various basic CDP (Cisco Discovery Protocol definitions and accessor functions.

There is a lot that's not documented and not understood about this protocol. But what we understand is somewhat documented here.

This file is part of the Assimilation Project.

Author: Copyright © 2011, 2012 - Alan Robertson alanr.nosp@m.@uni.nosp@m.x.sh
The Assimilation software 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 3 of the License, or (at your option) any later version.

The Assimilation software 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 the Assimilation Project software. If not, see http://www.gnu.org/licenses/

Definition in file cdp.h.

Function Documentation

WINEXPORT gboolean enable_cdp_packets ( gboolean enableme )

WINEXPORT gconstpointer get_cdp_chassis_id	(	gconstpointer	packet,
		gssize *	idlength,
		gconstpointer	pktend
	)

Get the chassis ID associated with this CDP packet.

Returns: pointer to chassis ID memory area and also length of the chassis ID

Parameters

[in]	packet	Pointer to a the start of a CDP packet
[out]	idlength	length of chassis id
[in]	pktend	Pointer of first byte past end of CDP packet

Definition at line 261 of file cdp_min.c.

References CDP_TLV_DEVID, get_cdptlv_body(), get_cdptlv_first(), get_cdptlv_next(), get_cdptlv_type(), and get_cdptlv_vlen().

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WINEXPORT guint16 get_cdp_cksum	(	gconstpointer	pktptr,
		gconstpointer	pktend
	)

WINEXPORT gconstpointer get_cdp_port_id	(	gconstpointer	packet,
		gssize *	idlength,
		gconstpointer	pktend
	)

get the port ID associated with this CDP packet

Returns: pointer to port ID memory area and also length of the port ID

Parameters

[in]	packet	Pointer to a the start of a CDP packet
[out]	idlength	length of chassis id
[in]	pktend	Pointer of first byte past end of CDP packet

Definition at line 282 of file cdp_min.c.

References CDP_TLV_PORTID, get_cdptlv_body(), get_cdptlv_first(), get_cdptlv_next(), get_cdptlv_type(), and get_cdptlv_vlen().

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WINEXPORT guint8 get_cdp_ttl	(	gconstpointer	pktptr,
		gconstpointer	pktend
	)

WINEXPORT guint8 get_cdp_vers	(	gconstpointer	pktptr,
		gconstpointer	pktend
	)

WINEXPORT gconstpointer get_cdptlv_body	(	gconstpointer	tlv_vp,
		gconstpointer	pktend
	)

WINEXPORT gconstpointer get_cdptlv_first	(	gconstpointer	pkt,
		gconstpointer	pktend
	)

WINEXPORT gsize get_cdptlv_len	(	gconstpointer	tlv_vp,
		gconstpointer	pktend
	)

WINEXPORT gconstpointer get_cdptlv_next	(	gconstpointer	tlv_vp,
		gconstpointer	pktend
	)

WINEXPORT guint16 get_cdptlv_type	(	gconstpointer	tlv_vp,
		gconstpointer	pktend
	)

WINEXPORT gsize get_cdptlv_vlen	(	gconstpointer	tlv_vp,
		gconstpointer	pktend
	)

WINEXPORT gboolean is_valid_cdp_packet	(	gconstpointer	packet,
		gconstpointer	pktend
	)

Macros

Functions

Detailed Description

Function Documentation