1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Header file describing the common ip parser function. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Provides type definitions and function prototypes used to parse ip packet. 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * Copyright (C) 2020, Broadcom. 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * Unless you and Broadcom execute a separate written software license 9*4882a593Smuzhiyun * agreement governing use of this software, this software is licensed to you 10*4882a593Smuzhiyun * under the terms of the GNU General Public License version 2 (the "GPL"), 11*4882a593Smuzhiyun * available at http://www.broadcom.com/licenses/GPLv2.php, with the 12*4882a593Smuzhiyun * following added to such license: 13*4882a593Smuzhiyun * 14*4882a593Smuzhiyun * As a special exception, the copyright holders of this software give you 15*4882a593Smuzhiyun * permission to link this software with independent modules, and to copy and 16*4882a593Smuzhiyun * distribute the resulting executable under terms of your choice, provided that 17*4882a593Smuzhiyun * you also meet, for each linked independent module, the terms and conditions of 18*4882a593Smuzhiyun * the license of that module. An independent module is a module which is not 19*4882a593Smuzhiyun * derived from this software. The special exception does not apply to any 20*4882a593Smuzhiyun * modifications of the software. 21*4882a593Smuzhiyun * 22*4882a593Smuzhiyun * 23*4882a593Smuzhiyun * <<Broadcom-WL-IPTag/Open:>> 24*4882a593Smuzhiyun * 25*4882a593Smuzhiyun * $Id$ 26*4882a593Smuzhiyun */ 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun #ifndef _dhd_ip_h_ 29*4882a593Smuzhiyun #define _dhd_ip_h_ 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun #if defined(DHDTCPACK_SUPPRESS) || defined(DHDTCPSYNC_FLOOD_BLK) 32*4882a593Smuzhiyun #include <dngl_stats.h> 33*4882a593Smuzhiyun #include <bcmutils.h> 34*4882a593Smuzhiyun #include <dhd.h> 35*4882a593Smuzhiyun #endif /* DHDTCPACK_SUPPRESS || DHDTCPSYNC_FLOOD_BLK */ 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun typedef enum pkt_frag 38*4882a593Smuzhiyun { 39*4882a593Smuzhiyun DHD_PKT_FRAG_NONE = 0, 40*4882a593Smuzhiyun DHD_PKT_FRAG_FIRST, 41*4882a593Smuzhiyun DHD_PKT_FRAG_CONT, 42*4882a593Smuzhiyun DHD_PKT_FRAG_LAST 43*4882a593Smuzhiyun } pkt_frag_t; 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun extern pkt_frag_t pkt_frag_info(osl_t *osh, void *p); 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun #ifdef DHDTCPSYNC_FLOOD_BLK 48*4882a593Smuzhiyun typedef enum tcp_hdr_flags { 49*4882a593Smuzhiyun FLAG_SYNC, 50*4882a593Smuzhiyun FLAG_SYNCACK, 51*4882a593Smuzhiyun FLAG_RST, 52*4882a593Smuzhiyun FLAG_OTHERS 53*4882a593Smuzhiyun } tcp_hdr_flag_t; 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun extern tcp_hdr_flag_t dhd_tcpdata_get_flag(dhd_pub_t *dhdp, void *pkt); 56*4882a593Smuzhiyun #endif /* DHDTCPSYNC_FLOOD_BLK */ 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun #ifdef DHDTCPACK_SUPPRESS 59*4882a593Smuzhiyun #define TCPACKSZMIN (ETHER_HDR_LEN + IPV4_MIN_HEADER_LEN + TCP_MIN_HEADER_LEN) 60*4882a593Smuzhiyun /* Size of MAX possible TCP ACK packet. Extra bytes for IP/TCP option fields */ 61*4882a593Smuzhiyun #define TCPACKSZMAX (TCPACKSZMIN + 100) 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun /* Max number of TCP streams that have own src/dst IP addrs and TCP ports */ 64*4882a593Smuzhiyun #ifndef TCPACK_INFO_MAXNUM 65*4882a593Smuzhiyun #define TCPACK_INFO_MAXNUM 4 66*4882a593Smuzhiyun #endif 67*4882a593Smuzhiyun #ifndef TCPDATA_INFO_MAXNUM 68*4882a593Smuzhiyun #define TCPDATA_INFO_MAXNUM 4 69*4882a593Smuzhiyun #endif 70*4882a593Smuzhiyun #define TCPDATA_PSH_INFO_MAXNUM (8 * TCPDATA_INFO_MAXNUM) 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun #define TCPDATA_INFO_TIMEOUT 5000 /* Remove tcpdata_info if inactive for this time (in ms) */ 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun #define DEFAULT_TCPACK_SUPP_RATIO 3 75*4882a593Smuzhiyun #ifndef CUSTOM_TCPACK_SUPP_RATIO 76*4882a593Smuzhiyun #define CUSTOM_TCPACK_SUPP_RATIO DEFAULT_TCPACK_SUPP_RATIO 77*4882a593Smuzhiyun #endif /* CUSTOM_TCPACK_SUPP_RATIO */ 78*4882a593Smuzhiyun 79*4882a593Smuzhiyun #define DEFAULT_TCPACK_DELAY_TIME 10 /* ms */ 80*4882a593Smuzhiyun #ifndef CUSTOM_TCPACK_DELAY_TIME 81*4882a593Smuzhiyun #define CUSTOM_TCPACK_DELAY_TIME DEFAULT_TCPACK_DELAY_TIME 82*4882a593Smuzhiyun #endif /* CUSTOM_TCPACK_DELAY_TIME */ 83*4882a593Smuzhiyun 84*4882a593Smuzhiyun extern int dhd_tcpack_suppress_set(dhd_pub_t *dhdp, uint8 on); 85*4882a593Smuzhiyun extern void dhd_tcpack_info_tbl_clean(dhd_pub_t *dhdp); 86*4882a593Smuzhiyun extern int dhd_tcpack_check_xmit(dhd_pub_t *dhdp, void *pkt); 87*4882a593Smuzhiyun extern bool dhd_tcpack_suppress(dhd_pub_t *dhdp, void *pkt); 88*4882a593Smuzhiyun extern bool dhd_tcpdata_info_get(dhd_pub_t *dhdp, void *pkt); 89*4882a593Smuzhiyun extern bool dhd_tcpack_hold(dhd_pub_t *dhdp, void *pkt, int ifidx); 90*4882a593Smuzhiyun /* #define DHDTCPACK_SUP_DBG */ 91*4882a593Smuzhiyun #if defined(DEBUG_COUNTER) && defined(DHDTCPACK_SUP_DBG) 92*4882a593Smuzhiyun extern counter_tbl_t tack_tbl; 93*4882a593Smuzhiyun #endif /* DEBUG_COUNTER && DHDTCPACK_SUP_DBG */ 94*4882a593Smuzhiyun #endif /* DHDTCPACK_SUPPRESS */ 95*4882a593Smuzhiyun 96*4882a593Smuzhiyun #endif /* _dhd_ip_h_ */ 97