/******************************************************************************
 **
 ** FILE NAME    : mcast_helper.h
 ** AUTHOR       : 
 ** DESCRIPTION  : Multicast Helper module header file
 ** COPYRIGHT    :      Copyright (c) 2014 2015
 **                Lantiq Beteiligungs-GmbH & Co. KG
 **
 **    This program is free software; you can redistribute it and/or modify
 **    it under the terms of the GNU General Public License as published by
 **    the Free Software Foundation; either version 2 of the License, or
 **    (at your option) any later version.
 **
 ** HISTORY
 ** $Date         $Author                $Comment
 ** 26 AUG 2014                 	      Initial Version
 **                                   
 *******************************************************************************/

/* 
 * mcast_helper.h - the header file with the ioctl definitions.
 *
 */

#ifndef MCAST_HELPER_H
#define MCAST_HELPER_H
#include <uapi/linux/in.h>
#include <linux/ioctl.h>
#include <linux/cdev.h>
#include <linux/device.h>
#include <linux/module.h>

#define MCH_MAGIC 'M'
#define MCH_MEMBER_ENTRY_ADD _IOR(MCH_MAGIC, 0, char *)
#define MCH_MEMBER_ENTRY_UPDATE _IOR(MCH_MAGIC, 1, char *)
#define MCH_MEMBER_ENTRY_REMOVE _IOR(MCH_MAGIC, 2, char *)
#define MCH_SEVER_ENTRY_GET _IOR(MCH_MAGIC, 3, char *)

#define LTQ_MC_F_REGISTER 0x01
#define LTQ_MC_F_DEREGISTER 0x02

#define MCH_MAX_CALLBACK_FUNC 10

#define SUCCESS 0x1
#define FAILURE 0x0

#define IPSTRLEN 40

#define FIRST_MINOR 0
#define MINOR_CNT 1
#define DEVICE_NAME "mcast"
#define uint32_t unsigned int
#define IN6_ARE_ADDR_EQUAL(a, b) \
	(!memcmp((const void *)(a), (const void *)(b), sizeof(struct in6_addr)))

#ifndef IN6_IS_ADDR_UNSPECIFIED
#define IN6_IS_ADDR_UNSPECIFIED(a)                                 \
	(((uint32_t *)(a))[0] == 0 && ((uint32_t *)(a))[1] == 0 && \
	 ((uint32_t *)(a))[2] == 0 && ((uint32_t *)(a))[3] == 0)
#endif

#define MAX_CALLBACK 2
typedef void (*Mcast_module_callback_t)(unsigned int grpidx, struct net_device *netdev, void *mc_stream, unsigned int flag);

#define MC_F_ADD 0x01
#define MC_F_DEL 0x02
#define MC_F_UPD 0x03
#define MC_F_DEL_UPD 0x08
#define FTUPLE_ARR_SIZE 10
#define IFSIZE 20
#define MAX_MAC 64

/** Protocol type */
typedef enum {
	IPV4 = 0,
	IPV6 = 1,
	INVALID,
} ptype_t;

typedef struct _ip_addr_t {
	ptype_t ipType; /* IPv4 or IPv6 */
	union {
		struct in_addr ipAddr;
		struct in6_addr ip6Addr;
	} ipA;
} IP_Addr_t;

typedef struct _mcast_stream_t {
	struct net_device *rxDev; /* Rx NetDevice */
	IP_Addr_t sIP; /* Source IP - v4 or v6 */
	IP_Addr_t dIP; /* Destination IP (GA) - v4 or v6 */
	uint32_t proto; /* Protocol Type */
	uint32_t sPort; /* Source Port */
	uint32_t dPort; /* Destination Port */
	unsigned char src_mac[ETH_ALEN]; /* LAN/WLAN source Mac address  */
	uint32_t num_joined_macs; /* Number of Joined MACs */
	unsigned char macaddr[MAX_MAC][ETH_ALEN]; /* Lan/wlan array of joined Mac Address */

} MCAST_STREAM_t;

typedef struct _mcast_mac_t {
	unsigned char macaddr[ETH_ALEN];
	struct list_head list;
} MCAST_MAC_t;

typedef struct _mcast_member_t {
	struct net_device *memDev; /* Member NetDevice */
	IP_Addr_t groupIP; /* Destination IP (GA) - v4 or v6 */
	IP_Addr_t srcIP; /* Source IP - v4 or v6 (optional) */
	struct list_head macaddr_list; /* Lan/wlan  Mac Address */
	unsigned int macaddr_count; /** < Interface list count */

#ifdef CONFIG_MCAST_HELPER_ACL
	uint32_t aclBlocked; /* Flag indicates acl status blocked(1)/unblocked(0) */
#endif
	struct list_head list; /* mcast_member interface map  List  */
} MCAST_MEMBER_t;

typedef struct _mcast_rec_t {
	char memIntrfName[IFSIZE]; /* Member NetDevice */
	char rxIntrfName[IFSIZE]; /* Rx Member NetDevice */
	IP_Addr_t groupIP; /* Destination IP (GA) - v4 or v6 */
	IP_Addr_t srcIP; /* Source IP - v4 or v6 (optional) */
	uint32_t proto; /* Protocol Number */
	uint32_t sPort; /* Udp Source Port */
	uint32_t dPort; /* Udp Destination Port */
	unsigned char macaddr[ETH_ALEN]; /* Lan/wlan Mac Address */
} MCAST_REC_t;

typedef struct _mcast_gimc_t {
	unsigned int grpIdx; /* Group Index */
	MCAST_STREAM_t mc_stream; /* Five tuple info */
#ifdef CONFIG_MCAST_HELPER_ACL
	unsigned long long int oifbitmap; /* Output interface bitmap */
	unsigned int probeFlag; /* Probe Packet generate flag enable(1)/disable(0) */
#endif
	struct list_head list; /**< Creating Global List  */
	struct list_head mc_mem_list; /**< Creating Global List  */
	int br_callback_flag; /* Flag for bridge five tuple info */
} MCAST_GIMC_t;

typedef struct
{
	int status, dignity, ego;
} query_arg_t;

typedef struct _ftuple_info_t {
	char rxIntrfName[IFSIZE]; /* Rx Member NetDevice */
	IP_Addr_t groupIP; /* Destination IP (GA) - v4 or v6 */
	IP_Addr_t srcIP; /* Source IP - v4 or v6 (optional) */
	uint32_t proto; /* Protocol Number */
	uint32_t sPort; /* Udp Source Port */
	uint32_t dPort; /* Udp Destination Port */
	uint32_t uflag; /* update flag for ftuple array */
	unsigned char src_mac[ETH_ALEN]; /* source Mac address for grx5xx */
} FTUPLE_INFO_t;

#define QUERY_GET_VARIABLES _IOR('q', 1, query_arg_t *)
#define QUERY_CLR_VARIABLES _IO('q', 2)
#define QUERY_SET_VARIABLES _IOW('q', 3, query_arg_t *)

#endif