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/*
* Header file describing the common ip parser function.
*
* Provides type definitions and function prototypes used to parse ip packet.
*
* Copyright (C) 1999-2014, Broadcom Corporation
*
* Unless you and Broadcom execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2 (the "GPL"),
* available at http://www.broadcom.com/licenses/GPLv2.php, with the
* following added to such license:
*
* As a special exception, the copyright holders of this software give you
* permission to link this software with independent modules, and to copy and
* distribute the resulting executable under terms of your choice, provided that
* you also meet, for each linked independent module, the terms and conditions of
* the license of that module. An independent module is a module which is not
* derived from this software. The special exception does not apply to any
* modifications of the software.
*
* Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other Broadcom software provided under a license
* other than the GPL, without Broadcom's express prior written consent.
*
* $Id: dhd_ip.h 458522 2014-02-27 02:26:15Z $
*/
#ifndef _dhd_ip_h_
#define _dhd_ip_h_
#ifdef DHDTCPACK_SUPPRESS
#include <dngl_stats.h>
#include <bcmutils.h>
#include <dhd.h>
#endif /* DHDTCPACK_SUPPRESS */
typedef enum pkt_frag
{
DHD_PKT_FRAG_NONE = 0,
DHD_PKT_FRAG_FIRST,
DHD_PKT_FRAG_CONT,
DHD_PKT_FRAG_LAST
} pkt_frag_t;
extern pkt_frag_t pkt_frag_info(osl_t *osh, void *p);
extern bool pkt_is_dhcp(osl_t *osh, void *p);
#ifdef DHDTCPACK_SUPPRESS
#define TCPACKSZMIN (ETHER_HDR_LEN + IPV4_MIN_HEADER_LEN + TCP_MIN_HEADER_LEN)
/* Size of MAX possible TCP ACK packet. Extra bytes for IP/TCP option fields */
#define TCPACKSZMAX (TCPACKSZMIN + 100)
/* Max number of TCP streams that have own src/dst IP addrs and TCP ports */
#define TCPACK_INFO_MAXNUM 4
#define TCPDATA_INFO_MAXNUM 4
#define TCPDATA_PSH_INFO_MAXNUM (8 * TCPDATA_INFO_MAXNUM)
#define TCPDATA_INFO_TIMEOUT 5000 /* Remove tcpdata_info if inactive for this time (in ms) */
extern int dhd_tcpack_suppress_set(dhd_pub_t *dhdp, uint8 on);
extern void dhd_tcpack_info_tbl_clean(dhd_pub_t *dhdp);
extern int dhd_tcpack_check_xmit(dhd_pub_t *dhdp, void *pkt);
extern bool dhd_tcpack_suppress(dhd_pub_t *dhdp, void *pkt);
extern bool dhd_tcpdata_info_get(dhd_pub_t *dhdp, void *pkt);
/* #define DHDTCPACK_SUP_DBG */
#if defined(DEBUG_COUNTER) && defined(DHDTCPACK_SUP_DBG)
extern counter_tbl_t tack_tbl;
#endif /* DEBUG_COUNTER && DHDTCPACK_SUP_DBG */
#endif /* DHDTCPACK_SUPPRESS */
#endif /* _dhd_ip_h_ */