/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Header file describing the common ip parser function.
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*
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* Provides type definitions and function prototypes used to parse ip packet.
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*
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* Copyright (C) 1999-2017, Broadcom Corporation
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed to you
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* under the terms of the GNU General Public License version 2 (the "GPL"),
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* available at http://www.broadcom.com/licenses/GPLv2.php, with the
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* following added to such license:
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*
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* As a special exception, the copyright holders of this software give you
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* permission to link this software with independent modules, and to copy and
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* distribute the resulting executable under terms of your choice, provided that
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* you also meet, for each linked independent module, the terms and conditions of
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* the license of that module. An independent module is a module which is not
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* derived from this software. The special exception does not apply to any
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* modifications of the software.
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*
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* Notwithstanding the above, under no circumstances may you combine this
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* software in any way with any other Broadcom software provided under a license
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* other than the GPL, without Broadcom's express prior written consent.
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*
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*
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* <<Broadcom-WL-IPTag/Open:>>
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*
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* $Id: dhd_ip.h 536854 2015-02-24 13:17:29Z $
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*/
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#ifndef _dhd_ip_h_
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#define _dhd_ip_h_
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#ifdef DHDTCPACK_SUPPRESS
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#include <dngl_stats.h>
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#include <bcmutils.h>
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#include <dhd.h>
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#endif /* DHDTCPACK_SUPPRESS */
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typedef enum pkt_frag
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{
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DHD_PKT_FRAG_NONE = 0,
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DHD_PKT_FRAG_FIRST,
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DHD_PKT_FRAG_CONT,
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DHD_PKT_FRAG_LAST
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} pkt_frag_t;
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extern pkt_frag_t pkt_frag_info(osl_t *osh, void *p);
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#ifdef DHDTCPACK_SUPPRESS
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#define TCPACKSZMIN (ETHER_HDR_LEN + IPV4_MIN_HEADER_LEN + TCP_MIN_HEADER_LEN)
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/* Size of MAX possible TCP ACK packet. Extra bytes for IP/TCP option fields */
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#define TCPACKSZMAX (TCPACKSZMIN + 100)
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/* Max number of TCP streams that have own src/dst IP addrs and TCP ports */
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#define TCPACK_INFO_MAXNUM 4
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#define TCPDATA_INFO_MAXNUM 4
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#define TCPDATA_PSH_INFO_MAXNUM (8 * TCPDATA_INFO_MAXNUM)
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#define TCPDATA_INFO_TIMEOUT 5000 /* Remove tcpdata_info if inactive for this time (in ms) */
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#define DEFAULT_TCPACK_SUPP_RATIO 3
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#ifndef CUSTOM_TCPACK_SUPP_RATIO
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#define CUSTOM_TCPACK_SUPP_RATIO DEFAULT_TCPACK_SUPP_RATIO
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#endif /* CUSTOM_TCPACK_SUPP_RATIO */
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#define DEFAULT_TCPACK_DELAY_TIME 10 /* ms */
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#ifndef CUSTOM_TCPACK_DELAY_TIME
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#define CUSTOM_TCPACK_DELAY_TIME DEFAULT_TCPACK_DELAY_TIME
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#endif /* CUSTOM_TCPACK_DELAY_TIME */
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extern int dhd_tcpack_suppress_set(dhd_pub_t *dhdp, uint8 on);
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extern void dhd_tcpack_info_tbl_clean(dhd_pub_t *dhdp);
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extern int dhd_tcpack_check_xmit(dhd_pub_t *dhdp, void *pkt);
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extern bool dhd_tcpack_suppress(dhd_pub_t *dhdp, void *pkt);
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extern bool dhd_tcpdata_info_get(dhd_pub_t *dhdp, void *pkt);
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extern bool dhd_tcpack_hold(dhd_pub_t *dhdp, void *pkt, int ifidx);
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/* #define DHDTCPACK_SUP_DBG */
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#if defined(DEBUG_COUNTER) && defined(DHDTCPACK_SUP_DBG)
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extern counter_tbl_t tack_tbl;
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#endif /* DEBUG_COUNTER && DHDTCPACK_SUP_DBG */
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#endif /* DHDTCPACK_SUPPRESS */
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#endif /* _dhd_ip_h_ */
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