tcpdump-4.3.0/print-lwapp.c - nest-learning-thermostat/5.0.1/tcpdump - Git at Google

 /*
  * Copyright (c) 1998-2007 The TCPDUMP project
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that: (1) source code
  * distributions retain the above copyright notice and this paragraph
  * in its entirety, and (2) distributions including binary code include
  * the above copyright notice and this paragraph in its entirety in
  * the documentation or other materials provided with the distribution.
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
  * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
  * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  * FOR A PARTICULAR PURPOSE.
  *
  * Support for the Light Weight Access Point Protocol as per draft-ohara-capwap-lwapp-04
  *
  * Original code by Carles Kishimoto <carles.kishimoto@gmail.com>
  */

 #ifndef lint
 static const char rcsid[] _U_ =
 "@(#) $Header: /tcpdump/master/tcpdump/print-lwapp.c,v 1.1 2007-07-24 16:07:30 hannes Exp $";
 #endif

 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif

 #include <tcpdump-stdinc.h>

 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

 #include "interface.h"
 #include "extract.h"
 #include "addrtoname.h"

 /*
  * LWAPP transport (common) header
  *      0                   1                   2                   3
  *     0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
  *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  *    |VER| RID |C|F|L|    Frag ID    |            Length             |
  *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  *    |          Status/WLANs         |   Payload...  |
  *    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  *
  */

 struct lwapp_transport_header {
     u_int8_t  version;
     u_int8_t  frag_id;
     u_int8_t  length[2];
     u_int16_t status;
 };

 /*
  * LWAPP control header
  *      0                   1                   2                   3
  *      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
  *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  *     |  Message Type |    Seq Num    |      Msg Element Length       |
  *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  *     |                           Session ID                          |
  *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  *     |      Msg Element [0..N]       |
  *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  */

 struct lwapp_control_header {
     u_int8_t  msg_type;
     u_int8_t  seq_num;
     u_int8_t  len[2];
     u_int8_t  session_id[4];
 };

 #define LWAPP_VERSION 0
 #define	LWAPP_EXTRACT_VERSION(x) (((x)&0xC0)>>6)
 #define	LWAPP_EXTRACT_RID(x) (((x)&0x38)>>3)
 #define LWAPP_EXTRACT_CONTROL_BIT(x) (((x)&0x04)>>2)

 static const struct tok lwapp_header_bits_values[] = {
     { 0x01, "Last Fragment Bit"},
     { 0x02, "Fragment Bit"},
     { 0x04, "Control Bit"},
     { 0, NULL}
 };

 #define	LWAPP_MSGTYPE_DISCOVERY_REQUEST			1
 #define	LWAPP_MSGTYPE_DISCOVERY_RESPONSE		2
 #define	LWAPP_MSGTYPE_JOIN_REQUEST			3
 #define LWAPP_MSGTYPE_JOIN_RESPONSE			4
 #define LWAPP_MSGTYPE_JOIN_ACK				5
 #define LWAPP_MSGTYPE_JOIN_CONFIRM			6
 #define LWAPP_MSGTYPE_CONFIGURE_REQUEST			10
 #define LWAPP_MSGTYPE_CONFIGURE_RESPONSE		11
 #define LWAPP_MSGTYPE_CONF_UPDATE_REQUEST		12
 #define LWAPP_MSGTYPE_CONF_UPDATE_RESPONSE		13
 #define LWAPP_MSGTYPE_WTP_EVENT_REQUEST			14
 #define LWAPP_MSGTYPE_WTP_EVENT_RESPONSE		15
 #define LWAPP_MSGTYPE_CHANGE_STATE_EVENT_REQUEST	16
 #define LWAPP_MSGTYPE_CHANGE_STATE_EVENT_RESPONSE	17
 #define LWAPP_MSGTYPE_ECHO_REQUEST			22
 #define LWAPP_MSGTYPE_ECHO_RESPONSE			23
 #define LWAPP_MSGTYPE_IMAGE_DATA_REQUEST		24
 #define LWAPP_MSGTYPE_IMAGE_DATA_RESPONSE		25
 #define LWAPP_MSGTYPE_RESET_REQUEST			26
 #define LWAPP_MSGTYPE_RESET_RESPONSE			27
 #define LWAPP_MSGTYPE_KEY_UPDATE_REQUEST		30
 #define LWAPP_MSGTYPE_KEY_UPDATE_RESPONSE		31
 #define LWAPP_MSGTYPE_PRIMARY_DISCOVERY_REQUEST		32
 #define LWAPP_MSGTYPE_PRIMARY_DISCOVERY_RESPONSE	33
 #define LWAPP_MSGTYPE_DATA_TRANSFER_REQUEST		34
 #define LWAPP_MSGTYPE_DATA_TRANSFER_RESPONSE		35
 #define LWAPP_MSGTYPE_CLEAR_CONFIG_INDICATION		36
 #define LWAPP_MSGTYPE_WLAN_CONFIG_REQUEST		37
 #define LWAPP_MSGTYPE_WLAN_CONFIG_RESPONSE		38
 #define LWAPP_MSGTYPE_MOBILE_CONFIG_REQUEST		39
 #define LWAPP_MSGTYPE_MOBILE_CONFIG_RESPONSE		40

 static const struct tok lwapp_msg_type_values[] = {
     { LWAPP_MSGTYPE_DISCOVERY_REQUEST, "Discovery req"},
     { LWAPP_MSGTYPE_DISCOVERY_RESPONSE, "Discovery resp"},
     { LWAPP_MSGTYPE_JOIN_REQUEST, "Join req"},
     { LWAPP_MSGTYPE_JOIN_RESPONSE, "Join resp"},
     { LWAPP_MSGTYPE_JOIN_ACK, "Join ack"},
     { LWAPP_MSGTYPE_JOIN_CONFIRM, "Join confirm"},
     { LWAPP_MSGTYPE_CONFIGURE_REQUEST, "Configure req"},
     { LWAPP_MSGTYPE_CONFIGURE_RESPONSE, "Configure resp"},
     { LWAPP_MSGTYPE_CONF_UPDATE_REQUEST, "Update req"},
     { LWAPP_MSGTYPE_CONF_UPDATE_RESPONSE, "Update resp"},
     { LWAPP_MSGTYPE_WTP_EVENT_REQUEST, "WTP event req"},
     { LWAPP_MSGTYPE_WTP_EVENT_RESPONSE, "WTP event resp"},
     { LWAPP_MSGTYPE_CHANGE_STATE_EVENT_REQUEST, "Change state event req"},
     { LWAPP_MSGTYPE_CHANGE_STATE_EVENT_RESPONSE, "Change state event resp"},
     { LWAPP_MSGTYPE_ECHO_REQUEST, "Echo req"},
     { LWAPP_MSGTYPE_ECHO_RESPONSE, "Echo resp"},
     { LWAPP_MSGTYPE_IMAGE_DATA_REQUEST, "Image data req"},
     { LWAPP_MSGTYPE_IMAGE_DATA_RESPONSE, "Image data resp"},
     { LWAPP_MSGTYPE_RESET_REQUEST, "Channel status req"},
     { LWAPP_MSGTYPE_RESET_RESPONSE, "Channel status resp"},
     { LWAPP_MSGTYPE_KEY_UPDATE_REQUEST, "Key update req"},
     { LWAPP_MSGTYPE_KEY_UPDATE_RESPONSE, "Key update resp"},
     { LWAPP_MSGTYPE_PRIMARY_DISCOVERY_REQUEST, "Primary discovery req"},
     { LWAPP_MSGTYPE_PRIMARY_DISCOVERY_RESPONSE, "Primary discovery resp"},
     { LWAPP_MSGTYPE_DATA_TRANSFER_REQUEST, "Data transfer req"},
     { LWAPP_MSGTYPE_DATA_TRANSFER_RESPONSE, "Data transfer resp"},
     { LWAPP_MSGTYPE_CLEAR_CONFIG_INDICATION, "Clear config ind"},
     { LWAPP_MSGTYPE_WLAN_CONFIG_REQUEST, "Wlan config req"},
     { LWAPP_MSGTYPE_WLAN_CONFIG_RESPONSE, "Wlan config resp"},
     { LWAPP_MSGTYPE_MOBILE_CONFIG_REQUEST, "Mobile config req"},
     { LWAPP_MSGTYPE_MOBILE_CONFIG_RESPONSE, "Mobile config resp"},
     { 0, NULL}
 };

 /*
  * LWAPP message elements
  *
  * 0                   1                   2                   3
  * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  * |      Type     |             Length            |   Value ...   |
  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  */
 struct lwapp_message_header {
     u_int8_t type;
     u_int8_t length[2];
 };

 void
 lwapp_control_print(const u_char *pptr, u_int len, int has_ap_ident) {

     const struct lwapp_transport_header *lwapp_trans_header;
     const struct lwapp_control_header *lwapp_control_header;
     const u_char *tptr;
     int  tlen;
     int  msg_tlen;

     tptr=pptr;

     if (has_ap_ident) {
         /* check if enough bytes for AP identity */
         if (!TTEST2(*tptr, 6))
             goto trunc;
         lwapp_trans_header = (const struct lwapp_transport_header *)(pptr+6);
     } else {
         lwapp_trans_header = (const struct lwapp_transport_header *)pptr;
     }
     TCHECK(*lwapp_trans_header);

     /*
      * Sanity checking of the header.
      */
     if (LWAPP_EXTRACT_VERSION(lwapp_trans_header->version) != LWAPP_VERSION) {
 	printf("LWAPP version %u packet not supported",
                LWAPP_EXTRACT_VERSION(lwapp_trans_header->version));
 	return;
     }

     /* non-verbose */
     if (vflag < 1) {
         printf("LWAPPv%u, %s frame, Flags [%s], length %u",
                LWAPP_EXTRACT_VERSION(lwapp_trans_header->version),
                LWAPP_EXTRACT_CONTROL_BIT(lwapp_trans_header->version) ? "Control" : "Data",
                bittok2str(lwapp_header_bits_values,"none",(lwapp_trans_header->version)&0x07),
                len);
         return;
     }

     /* ok they seem to want to know everything - lets fully decode it */
     tlen=EXTRACT_16BITS(lwapp_trans_header->length);

     printf("LWAPPv%u, %s frame, Radio-id %u, Flags [%s], Frag-id %u, length %u",
            LWAPP_EXTRACT_VERSION(lwapp_trans_header->version),
            LWAPP_EXTRACT_CONTROL_BIT(lwapp_trans_header->version) ? "Control" : "Data",
            LWAPP_EXTRACT_RID(lwapp_trans_header->version),
            bittok2str(lwapp_header_bits_values,"none",(lwapp_trans_header->version)&0x07),
 	   lwapp_trans_header->frag_id,
 	   tlen);

     if (has_ap_ident) {
         printf("\n\tAP identity: %s",
                etheraddr_string(tptr));
         tptr+=sizeof(const struct lwapp_transport_header)+6;
     } else {
         tptr+=sizeof(const struct lwapp_transport_header);
     }

     while(tlen>0) {

         /* did we capture enough for fully decoding the object header ? */
         if (!TTEST2(*tptr, sizeof(struct lwapp_control_header)))
             goto trunc;

         lwapp_control_header = (const struct lwapp_control_header *)tptr;
 	msg_tlen = EXTRACT_16BITS(lwapp_control_header->len);

 	/* print message header */
         printf("\n\t  Msg type: %s (%u), Seqnum: %u, Msg len: %d, Session: 0x%08x",
                tok2str(lwapp_msg_type_values,"Unknown",lwapp_control_header->msg_type),
                lwapp_control_header->msg_type,
                lwapp_control_header->seq_num,
                msg_tlen,
                EXTRACT_32BITS(lwapp_control_header->session_id));

         /* did we capture enough for fully decoding the message */
         if (!TTEST2(*tptr, msg_tlen))
             goto trunc;

 	/* XXX - Decode sub messages for each message */
         switch(lwapp_control_header->msg_type) {
         case LWAPP_MSGTYPE_DISCOVERY_REQUEST:
         case LWAPP_MSGTYPE_DISCOVERY_RESPONSE:
         case LWAPP_MSGTYPE_JOIN_REQUEST:
         case LWAPP_MSGTYPE_JOIN_RESPONSE:
         case LWAPP_MSGTYPE_JOIN_ACK:
         case LWAPP_MSGTYPE_JOIN_CONFIRM:
         case LWAPP_MSGTYPE_CONFIGURE_REQUEST:
         case LWAPP_MSGTYPE_CONFIGURE_RESPONSE:
         case LWAPP_MSGTYPE_CONF_UPDATE_REQUEST:
         case LWAPP_MSGTYPE_CONF_UPDATE_RESPONSE:
         case LWAPP_MSGTYPE_WTP_EVENT_REQUEST:
         case LWAPP_MSGTYPE_WTP_EVENT_RESPONSE:
         case LWAPP_MSGTYPE_CHANGE_STATE_EVENT_REQUEST:
         case LWAPP_MSGTYPE_CHANGE_STATE_EVENT_RESPONSE:
         case LWAPP_MSGTYPE_ECHO_REQUEST:
         case LWAPP_MSGTYPE_ECHO_RESPONSE:
         case LWAPP_MSGTYPE_IMAGE_DATA_REQUEST:
         case LWAPP_MSGTYPE_IMAGE_DATA_RESPONSE:
         case LWAPP_MSGTYPE_RESET_REQUEST:
         case LWAPP_MSGTYPE_RESET_RESPONSE:
         case LWAPP_MSGTYPE_KEY_UPDATE_REQUEST:
         case LWAPP_MSGTYPE_KEY_UPDATE_RESPONSE:
         case LWAPP_MSGTYPE_PRIMARY_DISCOVERY_REQUEST:
         case LWAPP_MSGTYPE_PRIMARY_DISCOVERY_RESPONSE:
         case LWAPP_MSGTYPE_DATA_TRANSFER_REQUEST:
         case LWAPP_MSGTYPE_DATA_TRANSFER_RESPONSE:
         case LWAPP_MSGTYPE_CLEAR_CONFIG_INDICATION:
         case LWAPP_MSGTYPE_WLAN_CONFIG_REQUEST:
         case LWAPP_MSGTYPE_WLAN_CONFIG_RESPONSE:
         case LWAPP_MSGTYPE_MOBILE_CONFIG_REQUEST:
         case LWAPP_MSGTYPE_MOBILE_CONFIG_RESPONSE:
         default:
             break;
         }

         tptr += sizeof(struct lwapp_control_header) + msg_tlen;
         tlen -= sizeof(struct lwapp_control_header) + msg_tlen;
     }
     return;

  trunc:
     printf("\n\t\t packet exceeded snapshot");
 }

 void
 lwapp_data_print(const u_char *pptr, u_int len) {

     const struct lwapp_transport_header *lwapp_trans_header;
     const u_char *tptr;
     int tlen;

     tptr=pptr;

     /* check if enough bytes for AP identity */
     if (!TTEST2(*tptr, 6))
         goto trunc;
     lwapp_trans_header = (const struct lwapp_transport_header *)pptr;
     TCHECK(*lwapp_trans_header);

     /*
      * Sanity checking of the header.
      */
     if (LWAPP_EXTRACT_VERSION(lwapp_trans_header->version) != LWAPP_VERSION) {
         printf("LWAPP version %u packet not supported",
                LWAPP_EXTRACT_VERSION(lwapp_trans_header->version));
         return;
     }

     /* non-verbose */
     if (vflag < 1) {
         printf("LWAPPv%u, %s frame, Flags [%s], length %u",
                LWAPP_EXTRACT_VERSION(lwapp_trans_header->version),
                LWAPP_EXTRACT_CONTROL_BIT(lwapp_trans_header->version) ? "Control" : "Data",
                bittok2str(lwapp_header_bits_values,"none",(lwapp_trans_header->version)&0x07),
                len);
         return;
     }

     /* ok they seem to want to know everything - lets fully decode it */
     tlen=EXTRACT_16BITS(lwapp_trans_header->length);

     printf("LWAPPv%u, %s frame, Radio-id  %u, Flags [%s], Frag-id  %u, length %u",
            LWAPP_EXTRACT_VERSION(lwapp_trans_header->version),
            LWAPP_EXTRACT_CONTROL_BIT(lwapp_trans_header->version) ? "Control" : "Data",
            LWAPP_EXTRACT_RID(lwapp_trans_header->version),
            bittok2str(lwapp_header_bits_values,"none",(lwapp_trans_header->version)&0x07),
            lwapp_trans_header->frag_id,
            tlen);

     tptr+=sizeof(const struct lwapp_transport_header);
     tlen-=sizeof(const struct lwapp_transport_header);

     /* FIX - An IEEE 802.11 frame follows - hexdump for now */
     print_unknown_data(tptr, "\n\t", tlen);

     return;

  trunc:
     printf("\n\t\t packet exceeded snapshot");
 }

 /*
  * Local Variables:
  * c-style: whitesmith
  * c-basic-offset: 8
  * End:
  */
	/*
	* Copyright (c) 1998-2007 The TCPDUMP project
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that: (1) source code
	* distributions retain the above copyright notice and this paragraph
	* in its entirety, and (2) distributions including binary code include
	* the above copyright notice and this paragraph in its entirety in
	* the documentation or other materials provided with the distribution.
	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND
	* WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
	* LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
	* FOR A PARTICULAR PURPOSE.
	*
	* Support for the Light Weight Access Point Protocol as per draft-ohara-capwap-lwapp-04
	*
	* Original code by Carles Kishimoto <carles.kishimoto@gmail.com>
	*/

	#ifndef lint
	static const char rcsid[] _U_ =
	"@(#) $Header: /tcpdump/master/tcpdump/print-lwapp.c,v 1.1 2007-07-24 16:07:30 hannes Exp $";
	#endif

	#ifdef HAVE_CONFIG_H
	#include "config.h"
	#endif

	#include <tcpdump-stdinc.h>

	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>

	#include "interface.h"
	#include "extract.h"
	#include "addrtoname.h"

	/*
	* LWAPP transport (common) header
	* 0 1 2 3
	* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
	* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	* \|VER\| RID \|C\|F\|L\| Frag ID \| Length \|
	* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	* \| Status/WLANs \| Payload... \|
	* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	*
	*/

	struct lwapp_transport_header {
	u_int8_t version;
	u_int8_t frag_id;
	u_int8_t length[2];
	u_int16_t status;
	};

	/*
	* LWAPP control header
	* 0 1 2 3
	* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
	* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	* \| Message Type \| Seq Num \| Msg Element Length \|
	* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	* \| Session ID \|
	* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	* \| Msg Element [0..N] \|
	* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	*/

	struct lwapp_control_header {
	u_int8_t msg_type;
	u_int8_t seq_num;
	u_int8_t len[2];
	u_int8_t session_id[4];
	};

	#define LWAPP_VERSION 0
	#define LWAPP_EXTRACT_VERSION(x) (((x)&0xC0)>>6)
	#define LWAPP_EXTRACT_RID(x) (((x)&0x38)>>3)
	#define LWAPP_EXTRACT_CONTROL_BIT(x) (((x)&0x04)>>2)

	static const struct tok lwapp_header_bits_values[] = {
	{ 0x01, "Last Fragment Bit"},
	{ 0x02, "Fragment Bit"},
	{ 0x04, "Control Bit"},
	{ 0, NULL}
	};

	#define LWAPP_MSGTYPE_DISCOVERY_REQUEST 1
	#define LWAPP_MSGTYPE_DISCOVERY_RESPONSE 2
	#define LWAPP_MSGTYPE_JOIN_REQUEST 3
	#define LWAPP_MSGTYPE_JOIN_RESPONSE 4
	#define LWAPP_MSGTYPE_JOIN_ACK 5
	#define LWAPP_MSGTYPE_JOIN_CONFIRM 6
	#define LWAPP_MSGTYPE_CONFIGURE_REQUEST 10
	#define LWAPP_MSGTYPE_CONFIGURE_RESPONSE 11
	#define LWAPP_MSGTYPE_CONF_UPDATE_REQUEST 12
	#define LWAPP_MSGTYPE_CONF_UPDATE_RESPONSE 13
	#define LWAPP_MSGTYPE_WTP_EVENT_REQUEST 14
	#define LWAPP_MSGTYPE_WTP_EVENT_RESPONSE 15
	#define LWAPP_MSGTYPE_CHANGE_STATE_EVENT_REQUEST 16
	#define LWAPP_MSGTYPE_CHANGE_STATE_EVENT_RESPONSE 17
	#define LWAPP_MSGTYPE_ECHO_REQUEST 22
	#define LWAPP_MSGTYPE_ECHO_RESPONSE 23
	#define LWAPP_MSGTYPE_IMAGE_DATA_REQUEST 24
	#define LWAPP_MSGTYPE_IMAGE_DATA_RESPONSE 25
	#define LWAPP_MSGTYPE_RESET_REQUEST 26
	#define LWAPP_MSGTYPE_RESET_RESPONSE 27
	#define LWAPP_MSGTYPE_KEY_UPDATE_REQUEST 30
	#define LWAPP_MSGTYPE_KEY_UPDATE_RESPONSE 31
	#define LWAPP_MSGTYPE_PRIMARY_DISCOVERY_REQUEST 32
	#define LWAPP_MSGTYPE_PRIMARY_DISCOVERY_RESPONSE 33
	#define LWAPP_MSGTYPE_DATA_TRANSFER_REQUEST 34
	#define LWAPP_MSGTYPE_DATA_TRANSFER_RESPONSE 35
	#define LWAPP_MSGTYPE_CLEAR_CONFIG_INDICATION 36
	#define LWAPP_MSGTYPE_WLAN_CONFIG_REQUEST 37
	#define LWAPP_MSGTYPE_WLAN_CONFIG_RESPONSE 38
	#define LWAPP_MSGTYPE_MOBILE_CONFIG_REQUEST 39
	#define LWAPP_MSGTYPE_MOBILE_CONFIG_RESPONSE 40

	static const struct tok lwapp_msg_type_values[] = {
	{ LWAPP_MSGTYPE_DISCOVERY_REQUEST, "Discovery req"},
	{ LWAPP_MSGTYPE_DISCOVERY_RESPONSE, "Discovery resp"},
	{ LWAPP_MSGTYPE_JOIN_REQUEST, "Join req"},
	{ LWAPP_MSGTYPE_JOIN_RESPONSE, "Join resp"},
	{ LWAPP_MSGTYPE_JOIN_ACK, "Join ack"},
	{ LWAPP_MSGTYPE_JOIN_CONFIRM, "Join confirm"},
	{ LWAPP_MSGTYPE_CONFIGURE_REQUEST, "Configure req"},
	{ LWAPP_MSGTYPE_CONFIGURE_RESPONSE, "Configure resp"},
	{ LWAPP_MSGTYPE_CONF_UPDATE_REQUEST, "Update req"},
	{ LWAPP_MSGTYPE_CONF_UPDATE_RESPONSE, "Update resp"},
	{ LWAPP_MSGTYPE_WTP_EVENT_REQUEST, "WTP event req"},
	{ LWAPP_MSGTYPE_WTP_EVENT_RESPONSE, "WTP event resp"},
	{ LWAPP_MSGTYPE_CHANGE_STATE_EVENT_REQUEST, "Change state event req"},
	{ LWAPP_MSGTYPE_CHANGE_STATE_EVENT_RESPONSE, "Change state event resp"},
	{ LWAPP_MSGTYPE_ECHO_REQUEST, "Echo req"},
	{ LWAPP_MSGTYPE_ECHO_RESPONSE, "Echo resp"},
	{ LWAPP_MSGTYPE_IMAGE_DATA_REQUEST, "Image data req"},
	{ LWAPP_MSGTYPE_IMAGE_DATA_RESPONSE, "Image data resp"},
	{ LWAPP_MSGTYPE_RESET_REQUEST, "Channel status req"},
	{ LWAPP_MSGTYPE_RESET_RESPONSE, "Channel status resp"},
	{ LWAPP_MSGTYPE_KEY_UPDATE_REQUEST, "Key update req"},
	{ LWAPP_MSGTYPE_KEY_UPDATE_RESPONSE, "Key update resp"},
	{ LWAPP_MSGTYPE_PRIMARY_DISCOVERY_REQUEST, "Primary discovery req"},
	{ LWAPP_MSGTYPE_PRIMARY_DISCOVERY_RESPONSE, "Primary discovery resp"},
	{ LWAPP_MSGTYPE_DATA_TRANSFER_REQUEST, "Data transfer req"},
	{ LWAPP_MSGTYPE_DATA_TRANSFER_RESPONSE, "Data transfer resp"},
	{ LWAPP_MSGTYPE_CLEAR_CONFIG_INDICATION, "Clear config ind"},
	{ LWAPP_MSGTYPE_WLAN_CONFIG_REQUEST, "Wlan config req"},
	{ LWAPP_MSGTYPE_WLAN_CONFIG_RESPONSE, "Wlan config resp"},
	{ LWAPP_MSGTYPE_MOBILE_CONFIG_REQUEST, "Mobile config req"},
	{ LWAPP_MSGTYPE_MOBILE_CONFIG_RESPONSE, "Mobile config resp"},
	{ 0, NULL}
	};

	/*
	* LWAPP message elements
	*
	* 0 1 2 3
	* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
	* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	* \| Type \| Length \| Value ... \|
	* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	*/
	struct lwapp_message_header {
	u_int8_t type;
	u_int8_t length[2];
	};

	void
	lwapp_control_print(const u_char *pptr, u_int len, int has_ap_ident) {

	const struct lwapp_transport_header *lwapp_trans_header;
	const struct lwapp_control_header *lwapp_control_header;
	const u_char *tptr;
	int tlen;
	int msg_tlen;

	tptr=pptr;

	if (has_ap_ident) {
	/* check if enough bytes for AP identity */
	if (!TTEST2(*tptr, 6))
	goto trunc;
	lwapp_trans_header = (const struct lwapp_transport_header *)(pptr+6);
	} else {
	lwapp_trans_header = (const struct lwapp_transport_header *)pptr;
	}
	TCHECK(*lwapp_trans_header);

	/*
	* Sanity checking of the header.
	*/
	if (LWAPP_EXTRACT_VERSION(lwapp_trans_header->version) != LWAPP_VERSION) {
	printf("LWAPP version %u packet not supported",
	LWAPP_EXTRACT_VERSION(lwapp_trans_header->version));
	return;
	}

	/* non-verbose */
	if (vflag < 1) {
	printf("LWAPPv%u, %s frame, Flags [%s], length %u",
	LWAPP_EXTRACT_VERSION(lwapp_trans_header->version),
	LWAPP_EXTRACT_CONTROL_BIT(lwapp_trans_header->version) ? "Control" : "Data",
	bittok2str(lwapp_header_bits_values,"none",(lwapp_trans_header->version)&0x07),
	len);
	return;
	}

	/* ok they seem to want to know everything - lets fully decode it */
	tlen=EXTRACT_16BITS(lwapp_trans_header->length);

	printf("LWAPPv%u, %s frame, Radio-id %u, Flags [%s], Frag-id %u, length %u",
	LWAPP_EXTRACT_VERSION(lwapp_trans_header->version),
	LWAPP_EXTRACT_CONTROL_BIT(lwapp_trans_header->version) ? "Control" : "Data",
	LWAPP_EXTRACT_RID(lwapp_trans_header->version),
	bittok2str(lwapp_header_bits_values,"none",(lwapp_trans_header->version)&0x07),
	lwapp_trans_header->frag_id,
	tlen);

	if (has_ap_ident) {
	printf("\n\tAP identity: %s",
	etheraddr_string(tptr));
	tptr+=sizeof(const struct lwapp_transport_header)+6;
	} else {
	tptr+=sizeof(const struct lwapp_transport_header);
	}

	while(tlen>0) {

	/* did we capture enough for fully decoding the object header ? */
	if (!TTEST2(*tptr, sizeof(struct lwapp_control_header)))
	goto trunc;

	lwapp_control_header = (const struct lwapp_control_header *)tptr;
	msg_tlen = EXTRACT_16BITS(lwapp_control_header->len);

	/* print message header */
	printf("\n\t Msg type: %s (%u), Seqnum: %u, Msg len: %d, Session: 0x%08x",
	tok2str(lwapp_msg_type_values,"Unknown",lwapp_control_header->msg_type),
	lwapp_control_header->msg_type,
	lwapp_control_header->seq_num,
	msg_tlen,
	EXTRACT_32BITS(lwapp_control_header->session_id));

	/* did we capture enough for fully decoding the message */
	if (!TTEST2(*tptr, msg_tlen))
	goto trunc;

	/* XXX - Decode sub messages for each message */
	switch(lwapp_control_header->msg_type) {
	case LWAPP_MSGTYPE_DISCOVERY_REQUEST:
	case LWAPP_MSGTYPE_DISCOVERY_RESPONSE:
	case LWAPP_MSGTYPE_JOIN_REQUEST:
	case LWAPP_MSGTYPE_JOIN_RESPONSE:
	case LWAPP_MSGTYPE_JOIN_ACK:
	case LWAPP_MSGTYPE_JOIN_CONFIRM:
	case LWAPP_MSGTYPE_CONFIGURE_REQUEST:
	case LWAPP_MSGTYPE_CONFIGURE_RESPONSE:
	case LWAPP_MSGTYPE_CONF_UPDATE_REQUEST:
	case LWAPP_MSGTYPE_CONF_UPDATE_RESPONSE:
	case LWAPP_MSGTYPE_WTP_EVENT_REQUEST:
	case LWAPP_MSGTYPE_WTP_EVENT_RESPONSE:
	case LWAPP_MSGTYPE_CHANGE_STATE_EVENT_REQUEST:
	case LWAPP_MSGTYPE_CHANGE_STATE_EVENT_RESPONSE:
	case LWAPP_MSGTYPE_ECHO_REQUEST:
	case LWAPP_MSGTYPE_ECHO_RESPONSE:
	case LWAPP_MSGTYPE_IMAGE_DATA_REQUEST:
	case LWAPP_MSGTYPE_IMAGE_DATA_RESPONSE:
	case LWAPP_MSGTYPE_RESET_REQUEST:
	case LWAPP_MSGTYPE_RESET_RESPONSE:
	case LWAPP_MSGTYPE_KEY_UPDATE_REQUEST:
	case LWAPP_MSGTYPE_KEY_UPDATE_RESPONSE:
	case LWAPP_MSGTYPE_PRIMARY_DISCOVERY_REQUEST:
	case LWAPP_MSGTYPE_PRIMARY_DISCOVERY_RESPONSE:
	case LWAPP_MSGTYPE_DATA_TRANSFER_REQUEST:
	case LWAPP_MSGTYPE_DATA_TRANSFER_RESPONSE:
	case LWAPP_MSGTYPE_CLEAR_CONFIG_INDICATION:
	case LWAPP_MSGTYPE_WLAN_CONFIG_REQUEST:
	case LWAPP_MSGTYPE_WLAN_CONFIG_RESPONSE:
	case LWAPP_MSGTYPE_MOBILE_CONFIG_REQUEST:
	case LWAPP_MSGTYPE_MOBILE_CONFIG_RESPONSE:
	default:
	break;
	}

	tptr += sizeof(struct lwapp_control_header) + msg_tlen;
	tlen -= sizeof(struct lwapp_control_header) + msg_tlen;
	}
	return;

	trunc:
	printf("\n\t\t packet exceeded snapshot");
	}

	void
	lwapp_data_print(const u_char *pptr, u_int len) {

	const struct lwapp_transport_header *lwapp_trans_header;
	const u_char *tptr;
	int tlen;

	tptr=pptr;

	/* check if enough bytes for AP identity */
	if (!TTEST2(*tptr, 6))
	goto trunc;
	lwapp_trans_header = (const struct lwapp_transport_header *)pptr;
	TCHECK(*lwapp_trans_header);

	/*
	* Sanity checking of the header.
	*/
	if (LWAPP_EXTRACT_VERSION(lwapp_trans_header->version) != LWAPP_VERSION) {
	printf("LWAPP version %u packet not supported",
	LWAPP_EXTRACT_VERSION(lwapp_trans_header->version));
	return;
	}

	/* non-verbose */
	if (vflag < 1) {
	printf("LWAPPv%u, %s frame, Flags [%s], length %u",
	LWAPP_EXTRACT_VERSION(lwapp_trans_header->version),
	LWAPP_EXTRACT_CONTROL_BIT(lwapp_trans_header->version) ? "Control" : "Data",
	bittok2str(lwapp_header_bits_values,"none",(lwapp_trans_header->version)&0x07),
	len);
	return;
	}

	/* ok they seem to want to know everything - lets fully decode it */
	tlen=EXTRACT_16BITS(lwapp_trans_header->length);

	printf("LWAPPv%u, %s frame, Radio-id %u, Flags [%s], Frag-id %u, length %u",
	LWAPP_EXTRACT_VERSION(lwapp_trans_header->version),
	LWAPP_EXTRACT_CONTROL_BIT(lwapp_trans_header->version) ? "Control" : "Data",
	LWAPP_EXTRACT_RID(lwapp_trans_header->version),
	bittok2str(lwapp_header_bits_values,"none",(lwapp_trans_header->version)&0x07),
	lwapp_trans_header->frag_id,
	tlen);

	tptr+=sizeof(const struct lwapp_transport_header);
	tlen-=sizeof(const struct lwapp_transport_header);

	/* FIX - An IEEE 802.11 frame follows - hexdump for now */
	print_unknown_data(tptr, "\n\t", tlen);

	return;

	trunc:
	printf("\n\t\t packet exceeded snapshot");
	}

	/*
	* Local Variables:
	* c-style: whitesmith
	* c-basic-offset: 8
	* End:
	*/