bcmdhd.1.579.77.41.x/dhd_bcol_tcpka.h

/*
 * Header file describing the BCOL TCPKA interfaces.
 *
 * Provides type definitions and function prototypes used to link the
 * DHD OS, bus, and protocol modules.
 *
 * Copyright (C) 1999-2017, 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.
 *
 *
 * <<Broadcom-WL-IPTag/Open:>>
 *
 * $Id:$
 */

#ifndef _DHD_BCOL_TCPKA_
#define _DHD_BCOL_TCPKA_

#include <typedefs.h>
#include <osl.h>

typedef struct tcpka_conn {
	uint32 sess_id;
	struct ether_addr dst_mac;
	struct ipv4_addr src_ip;
	struct ipv4_addr dst_ip;
	uint16 ipid;
	uint16 srcport;
	uint16 dstport;
	uint32 seq;
	uint32 ack;
	uint16 tcpwin;
	uint32 tsval;
	uint32 tsecr;
#ifdef TCPKA_BYPASS
	bool   bypass;                  /* bypass tcpka pkt to pkt filter process */
#endif /* TCPKA_BYPASS */
	uint32 last_payload_len;        /* last packet payload len */
	uint32 ka_payload_len;          /* keep alive payload length */
	uint8  ka_payload[1];           /* keep alive payload */
} tcpka_conn_t;

typedef struct tcpka6_conn {
	uint32 sess_id;
	struct ether_addr dst_mac;
	uint8 src_ip[IPV6_ADDR_LEN];
	uint8 dst_ip[IPV6_ADDR_LEN];
	uint32 type;
	uint16 srcport;
	uint16 dstport;
	uint32 seq;
	uint32 ack;
	uint16 tcpwin;
	uint32 tsval;
	uint32 tsecr;
#ifdef TCPKA_BYPASS
	bool   bypass;                  /* bypass tcpka pkt to pkt filter process */
#endif /* TCPKA_BYPASS */
	uint32 last_payload_len;        /* last packet payload len */
	uint32 ka_payload_len;          /* keep alive payload length */
	uint8  ka_payload[1];           /* keep alive payload */
} tcpka6_conn_t;

typedef struct tcpka_conn_sess {
	uint32 sess_id;
	uint32 flag;
	wl_mtcpkeep_alive_timers_pkt_t  tcp_keepalive_timers;
	uint32 snd_wl1;
	uint32 snd_wnd;
	uint32 max_window;
	uint32 rcv_wnd;
	uint32 rcv_wup;
	uint16 mss;
	uint8  snd_wscale;
	uint8  rcv_wscale;
	uint8  tcpi_options;
} tcpka_conn_sess_t;

typedef struct tcpka_conn_info {
	uint32 tcpka_sess_ipid;
	uint32 tcpka_sess_seq;
	uint32 tcpka_sess_ack;
	bool   tcpka_sess_active;
} tcpka_conn_sess_info_t;

#define max_tcpka_slen 128

typedef struct tcpka_conn_send {
	uint32 tcpka_sess_ipid;
	uint16 send_type;
	uint16 send_length;
	uint8  send_data[max_tcpka_slen];               /* keep alive payload */
} tcpka_conn_sess_send_t;

typedef struct tcpka_conn_reinit {
	uint32 tcpka_sess_ipid;
	uint8 enable;
	uint8 tcpka_handshake_timeout;
	uint16 tcpka_timeout_trigger;
} tcpka_conn_sess_reinit_t;

#ifdef TCPKA_REPAIR
typedef struct tcpka_conn_repair {
	bool	block_tcpka;
	uint16	block_tcpka_timeout; //sec
	uint32	block_tcpka_start_time; //timestamp
	void	*skbhead;
	void	*skbprev;
	uint32	pkt_in_q_num;
	bool	configured;
	uint32	src_ip;
	uint32	dst_ip;
	uint16	src_port;
	uint16	dst_port;
} tcpka_conn_repair_t;

/* Pkttag format for skb->cb of rx */
typedef struct dhd_pkttag_rx {
	bool	queue_needed;
	uint8	ifidx;
} dhd_pkttag_rx_t;

typedef struct noti_pkt_hold {
	int8	type;
	uint16	min_len;
	uint16	max_len;
} tcpka_noti_pkt_hold_t;

typedef struct noti_payload {
	uint8 tcpka_sess_id;
	uint8 gpio_slot;
	uint8 type;
	uint16 noti_len;
	uint8 noti_data[1];
} wifi_noti_payload_t;
#define DHD_PKTTAG_SET_QUEUED(tag, val)       ((tag)->queue_needed = (uint8)(val))
#define DHD_PKTTAG_QUEUED(tag)                ((tag)->queue_needed)

#define DHD_PKTTAG_SET_IFIDX(tag, val)       ((tag)->ifidx = (uint8)(val))
#define DHD_PKTTAG_IFIDX(tag)                ((tag)->ifidx)

#endif /* TCPKA_REPAIR */

/* FW BCOL TCPKA IOVARs */
#define CMD_STR_TCPKA_CONN_EN   "tcpka_conn_enable"
#define CMD_STR_TCPKA_CONN_ADD  "tcpka_conn_add"
#define CMD_STR_TCPKA_CONN_DEL  "tcpka_conn_del"
#define CMD_STR_TCPKA6_CONN_ADD "tcpka6_conn_add"
/* DHD only IOVAR */
#define CMD_STR_TCPKA_CONN_SYNC "tcpka_conn_sync"

#endif /* _DHD_BCOL_TCPKA_ */