ipacm/src/IPACM_Lan.cpp

/*
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*/
/*!
	@file
	IPACM_Lan.cpp

	@brief
	This file implements the LAN iface functionality.

	@Author
	Skylar Chang

*/
#include <string.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include "IPACM_Netlink.h"
#include "IPACM_Lan.h"
#include "IPACM_Wan.h"
#include "IPACM_IfaceManager.h"
#include "linux/rmnet_ipa_fd_ioctl.h"
#include "linux/ipa_qmi_service_v01.h"
#include "linux/msm_ipa.h"
#include "IPACM_ConntrackListener.h"
#include <sys/ioctl.h>
#include <fcntl.h>
#ifdef FEATURE_IPACM_HAL
#include "IPACM_OffloadManager.h"
#endif
bool IPACM_Lan::odu_up = false;

IPACM_Lan::IPACM_Lan(int iface_index) : IPACM_Iface(iface_index)
{
	num_eth_client = 0;
	header_name_count = 0;
	ipv6_set = 0;
	ipv4_header_set = false;
	ipv6_header_set = false;
	odu_route_rule_v4_hdl = NULL;
	odu_route_rule_v6_hdl = NULL;
	eth_client = NULL;
	int m_fd_odu, ret = IPACM_SUCCESS;
	uint32_t i;

	Nat_App = NatApp::GetInstance();
	if (Nat_App == NULL)
	{
		IPACMERR("unable to get Nat App instance \n");
		return;
	}

	num_wan_ul_fl_rule_v4 = 0;
	num_wan_ul_fl_rule_v6 = 0;
	is_active = true;
	modem_ul_v4_set = false;
	v4_mux_id = 0;
	modem_ul_v6_set = false;
	v6_mux_id = 0;

	sta_ul_v4_set = false;
	sta_ul_v6_set = false;

	is_mode_switch = false;
	if_ipv4_subnet =0;
	each_client_rt_rule_count[IPA_IP_v4] = 0;
	each_client_rt_rule_count[IPA_IP_v6] = 0;
	eth_client_len = 0;

	/* support eth multiple clients */
	if(iface_query != NULL)
	{
		if(ipa_if_cate != WLAN_IF)
		{
			eth_client_len = (sizeof(ipa_eth_client)) + (iface_query->num_tx_props * sizeof(eth_client_rt_hdl));
			eth_client = (ipa_eth_client *)calloc(IPA_MAX_NUM_ETH_CLIENTS, eth_client_len);
			if (eth_client == NULL)
			{
				IPACMERR("unable to allocate memory\n");
				return;
			}
		}

		IPACMDBG_H(" IPACM->IPACM_Lan(%d) constructor: Tx:%d Rx:%d \n", ipa_if_num,
					 iface_query->num_tx_props, iface_query->num_rx_props);

		/* ODU routing table initilization */
		if(ipa_if_cate == ODU_IF)
		{
			odu_route_rule_v4_hdl = (uint32_t *)calloc(iface_query->num_tx_props, sizeof(uint32_t));
			odu_route_rule_v6_hdl = (uint32_t *)calloc(iface_query->num_tx_props, sizeof(uint32_t));
			if ((odu_route_rule_v4_hdl == NULL) || (odu_route_rule_v6_hdl == NULL))
			{
				IPACMERR("unable to allocate memory\n");
				return;
			}
		}
	}

	memset(wan_ul_fl_rule_hdl_v4, 0, MAX_WAN_UL_FILTER_RULES * sizeof(uint32_t));
	memset(wan_ul_fl_rule_hdl_v6, 0, MAX_WAN_UL_FILTER_RULES * sizeof(uint32_t));

	memset(ipv4_icmp_flt_rule_hdl, 0, NUM_IPV4_ICMP_FLT_RULE * sizeof(uint32_t));

	memset(private_fl_rule_hdl, 0, (IPA_MAX_PRIVATE_SUBNET_ENTRIES + IPA_MAX_MTU_ENTRIES) * sizeof(uint32_t));
	memset(ipv6_prefix_flt_rule_hdl, 0, (NUM_IPV6_PREFIX_FLT_RULE + NUM_IPV6_PREFIX_MTU_RULE) * sizeof(uint32_t));
	memset(ipv6_icmp_flt_rule_hdl, 0, NUM_IPV6_ICMP_FLT_RULE * sizeof(uint32_t));
	memset(ipv6_prefix, 0, sizeof(ipv6_prefix));

	/* ODU routing table initilization */
	if(ipa_if_cate == ODU_IF)
	{
		/* only do one time ioctl to odu-driver to infrom in router or bridge mode*/
		if (IPACM_Lan::odu_up != true)
		{
				m_fd_odu = open(IPACM_Iface::ipacmcfg->DEVICE_NAME_ODU, O_RDWR);
				if (0 == m_fd_odu)
				{
					IPACMERR("Failed opening %s.\n", IPACM_Iface::ipacmcfg->DEVICE_NAME_ODU);
					return ;
				}

				if(IPACM_Iface::ipacmcfg->ipacm_odu_router_mode == true)
				{
					ret = ioctl(m_fd_odu, ODU_BRIDGE_IOC_SET_MODE, ODU_BRIDGE_MODE_ROUTER);
					IPACM_Iface::ipacmcfg->ipacm_odu_enable = true;
				}
				else
				{
					ret = ioctl(m_fd_odu, ODU_BRIDGE_IOC_SET_MODE, ODU_BRIDGE_MODE_BRIDGE);
					IPACM_Iface::ipacmcfg->ipacm_odu_enable = true;
				}

				if (ret)
				{
					IPACMERR("Failed tell odu-driver the mode\n");
				}
				IPACMDBG("Tell odu-driver in router-mode(%d)\n", IPACM_Iface::ipacmcfg->ipacm_odu_router_mode);
				IPACMDBG_H("odu is up: odu-driver in router-mode(%d) \n", IPACM_Iface::ipacmcfg->ipacm_odu_router_mode);
				close(m_fd_odu);
				IPACM_Lan::odu_up = true;
		}
	}

	if(iface_query != NULL && tx_prop != NULL)
	{
		for(i=0; i<iface_query->num_tx_props; i++)
			each_client_rt_rule_count[tx_prop->tx[i].ip]++;
	}
	IPACMDBG_H("Need to add %d IPv4 and %d IPv6 routing rules for eth bridge for each client.\n", each_client_rt_rule_count[IPA_IP_v4], each_client_rt_rule_count[IPA_IP_v6]);

#ifdef FEATURE_IPA_ANDROID
	/* set the IPA-client pipe enum */
	if(ipa_if_cate == LAN_IF)
	{
#ifdef FEATURE_IPACM_HAL
		handle_tethering_client(false, IPACM_CLIENT_MAX);
#else
		handle_tethering_client(false, IPACM_CLIENT_USB);
#endif // FEATURE_IPACM_HAL end
	}
#endif // FEATURE_IPA_ANDROID end

	memset(is_downstream_set, 0, sizeof(is_downstream_set));
	memset(is_upstream_set, 0, sizeof(is_upstream_set));
	memset(&prefix, 0, sizeof(prefix));

#ifdef FEATURE_IPACM_HAL

		/* check if Upstream was set before as WIFI with RNDIS case */
		if(ipa_if_cate == LAN_IF && IPACM_Wan::backhaul_mode == WLAN_WAN)  /* LTE */
		{
			IPACMDBG_H(" Skip the Upstream flag set on LAN instance (%d) with WIFI backhaul (%d)\n", ipa_if_cate, IPACM_Wan::backhaul_mode ); /* RNDIS+WIFI not support on msm*/
			return;
		}

		/* check if Upstream was set before */
		if (IPACM_Wan::isWanUP(ipa_if_num))
		{
				IPACMDBG_H("Upstream was set previously for ipv4, change is_upstream_set flag\n");
				is_upstream_set[IPA_IP_v4] = true;
		}

		if (IPACM_Wan::isWanUP_V6(ipa_if_num))
		{
				IPACMDBG_H("Upstream was set previously for ipv6, change is_upstream_set flag\n");
				is_upstream_set[IPA_IP_v6] = true;
		}
#endif // FEATURE_IPACM_HAL end
	return;
}

IPACM_Lan::~IPACM_Lan()
{
	IPACM_EvtDispatcher::deregistr(this);
	IPACM_IfaceManager::deregistr(this);
	return;
}


/* LAN-iface's callback function */
void IPACM_Lan::event_callback(ipa_cm_event_id event, void *param)
{
	if(is_active == false && event != IPA_LAN_DELETE_SELF)
	{
		IPACMDBG_H("The interface is no longer active, return.\n");
		return;
	}

	int ipa_interface_index;
	uint32_t i;
	ipacm_ext_prop* ext_prop;
	ipacm_event_iface_up_tehter* data_wan_tether;

	switch (event)
	{
	case IPA_LINK_DOWN_EVENT:
		{
			ipacm_event_data_fid *data = (ipacm_event_data_fid *)param;
			ipa_interface_index = iface_ipa_index_query(data->if_index);
			if (ipa_interface_index == ipa_if_num)
			{
				IPACMDBG_H("Received IPA_LINK_DOWN_EVENT\n");
				handle_down_evt();
				IPACM_Iface::ipacmcfg->DelNatIfaces(dev_name); // delete NAT-iface
				return;
			}
		}
		break;

	case IPA_CFG_CHANGE_EVENT:
		{
			if ( IPACM_Iface::ipacmcfg->iface_table[ipa_if_num].if_cat != ipa_if_cate)
			{
				IPACMDBG_H("Received IPA_CFG_CHANGE_EVENT and category changed\n");
				/* delete previous instance */
				handle_down_evt();
				IPACM_Iface::ipacmcfg->DelNatIfaces(dev_name); // delete NAT-iface
				is_mode_switch = true; // need post internal usb-link up event
				return;
			}
			/* Add Natting iface to IPACM_Config if there is  Rx/Tx property */
			if (rx_prop != NULL || tx_prop != NULL)
			{
				IPACMDBG_H(" Has rx/tx properties registered for iface %s, add for NATTING \n", dev_name);
				IPACM_Iface::ipacmcfg->AddNatIfaces(dev_name, IPA_IP_MAX);
			}
		}
		break;

	case IPA_PRIVATE_SUBNET_CHANGE_EVENT:
		{
			ipacm_event_data_fid *data = (ipacm_event_data_fid *)param;
			/* internel event: data->if_index is ipa_if_index */
			if (data->if_index == ipa_if_num)
			{
				IPACMDBG_H("Received IPA_PRIVATE_SUBNET_CHANGE_EVENT from itself posting, ignore\n");
				return;
			}
			else
			{
				IPACMDBG_H("Received IPA_PRIVATE_SUBNET_CHANGE_EVENT from other LAN iface \n");
#ifdef FEATURE_IPA_ANDROID
				handle_private_subnet_android(IPA_IP_v4);
#endif
				IPACMDBG_H(" delete old private subnet rules, use new sets \n");
				return;
			}
		}
		break;

	case IPA_LAN_DELETE_SELF:
	{
		ipacm_event_data_fid *data = (ipacm_event_data_fid *)param;
		if(data->if_index == ipa_if_num)
		{
			IPACMDBG_H("Received IPA_LAN_DELETE_SELF event.\n");
			IPACMDBG_H("ipa_LAN (%s):ipa_index (%d) instance close \n", IPACM_Iface::ipacmcfg->iface_table[ipa_if_num].iface_name, ipa_if_num);
			/* posting link-up event for cradle use-case */
			if(is_mode_switch)
			{
				IPACMDBG_H("Posting IPA_USB_LINK_UP_EVENT event for (%s)\n", dev_name);
				ipacm_cmd_q_data evt_data;
				memset(&evt_data, 0, sizeof(evt_data));

				ipacm_event_data_fid *data_fid = NULL;
				data_fid = (ipacm_event_data_fid *)malloc(sizeof(ipacm_event_data_fid));
				if(data_fid == NULL)
				{
					IPACMERR("unable to allocate memory for IPA_USB_LINK_UP_EVENT data_fid\n");
					return;
				}
				if(IPACM_Iface::ipa_get_if_index(dev_name, &(data_fid->if_index)))
				{
					IPACMERR("Error while getting interface index for %s device", dev_name);
				}
				evt_data.event = IPA_USB_LINK_UP_EVENT;
				evt_data.evt_data = data_fid;
				//IPACMDBG_H("Posting event:%d\n", evt_data.event);
				IPACM_EvtDispatcher::PostEvt(&evt_data);
			}
#ifndef FEATURE_IPA_ANDROID
			if(rx_prop != NULL)
			{
				if(IPACM_Iface::ipacmcfg->getFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v4) != 0)
				{
					IPACMDBG_DMESG("### WARNING ### num ipv4 flt rules on client %d is not expected: %d expected value: 0",
						rx_prop->rx[0].src_pipe, IPACM_Iface::ipacmcfg->getFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v4));
				}
				if(IPACM_Iface::ipacmcfg->getFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v6) != 0)
				{
					IPACMDBG_DMESG("### WARNING ### num ipv6 flt rules on client %d is not expected: %d expected value: 0",
						rx_prop->rx[0].src_pipe, IPACM_Iface::ipacmcfg->getFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v6));
				}
			}
#endif

			if (IPACM_Iface::ipacmcfg->isEthBridgingSupported())
			{
				if(rx_prop != NULL)
				{
					free(rx_prop);
				}
				if(tx_prop != NULL)
				{
					free(tx_prop);
				}
				if(iface_query != NULL)
				{
					free(iface_query);
				}
			}
			delete this;
		}
		break;
	}

	case IPA_ADDR_ADD_EVENT:
		{
			ipacm_event_data_addr *data = (ipacm_event_data_addr *)param;
			ipa_interface_index = iface_ipa_index_query(data->if_index);

			if ( (data->iptype == IPA_IP_v4 && data->ipv4_addr == 0) ||
					 (data->iptype == IPA_IP_v6 &&
						data->ipv6_addr[0] == 0 && data->ipv6_addr[1] == 0 &&
					  data->ipv6_addr[2] == 0 && data->ipv6_addr[3] == 0) )
			{
				IPACMDBG_H("Invalid address, ignore IPA_ADDR_ADD_EVENT event\n");
				return;
			}
#ifdef FEATURE_L2TP
			if(data->iptype == IPA_IP_v6 && is_vlan_event(data->iface_name) && is_unique_local_ipv6_addr(data->ipv6_addr))
			{
				IPACMDBG_H("Got IPv6 new addr event for a vlan iface %s.\n", data->iface_name);
				eth_bridge_post_event(IPA_HANDLE_VLAN_IFACE_INFO, data->iptype, NULL,
					data->ipv6_addr, data->iface_name, IPA_CLIENT_MAX);
			}
#endif
			if (ipa_interface_index == ipa_if_num)
			{
				IPACMDBG_H("Received IPA_ADDR_ADD_EVENT\n");

				/* only call ioctl for ODU iface with bridge mode */
				if(IPACM_Iface::ipacmcfg->ipacm_odu_enable == true && IPACM_Iface::ipacmcfg->ipacm_odu_router_mode == false
						&& ipa_if_cate == ODU_IF)
				{
					if((data->iptype == IPA_IP_v6) && (num_dft_rt_v6 == 0))
					{
						handle_addr_evt_odu_bridge(data);
					}
#ifdef FEATURE_IPA_ANDROID
					add_dummy_private_subnet_flt_rule(data->iptype);
					handle_private_subnet_android(data->iptype);
#else
					handle_private_subnet(data->iptype);
#endif // FEATURE_IPA_ANDROID end
				}
				else
				{

					/* check v4 not setup before, v6 can have 2 iface ip */
					if( ((data->iptype != ip_type) && (ip_type != IPA_IP_MAX))
						|| ((data->iptype==IPA_IP_v6) && (num_dft_rt_v6!=MAX_DEFAULT_v6_ROUTE_RULES)))
					{
						IPACMDBG_H("Got IPA_ADDR_ADD_EVENT ip-family:%d, v6 num %d: \n",data->iptype,num_dft_rt_v6);
						if(handle_addr_evt(data) == IPACM_FAILURE)
						{
							return;
						}

#ifdef FEATURE_IPA_ANDROID
						add_dummy_private_subnet_flt_rule(data->iptype);
						handle_private_subnet_android(data->iptype);
#else
						handle_private_subnet(data->iptype);
#endif // FEATURE_IPA_ANDROID end

#ifndef FEATURE_IPACM_HAL
						if (IPACM_Wan::isWanUP(ipa_if_num))
						{
							if(data->iptype == IPA_IP_v4 || data->iptype == IPA_IP_MAX)
							{
								if(IPACM_Wan::backhaul_mode == Q6_WAN)
								{
									ext_prop = IPACM_Iface::ipacmcfg->GetExtProp(IPA_IP_v4);
									handle_wan_up_ex(ext_prop, IPA_IP_v4,
												IPACM_Wan::getXlat_Mux_Id());
								}
								else
								{
									handle_wan_up(IPA_IP_v4);
								}
							}
							IPACMDBG_H("Finished checking wan_up\n");
						} else {
							IPACMDBG_H("Wan_V4 haven't up yet\n");
						}

						if(IPACM_Wan::isWanUP_V6(ipa_if_num))
						{
							if((data->iptype == IPA_IP_v6 || data->iptype == IPA_IP_MAX) && num_dft_rt_v6 == 1)
							{
								memcpy(ipv6_prefix, IPACM_Wan::backhaul_ipv6_prefix, sizeof(ipv6_prefix));
								install_ipv6_prefix_flt_rule(IPACM_Wan::backhaul_ipv6_prefix);
								if(IPACM_Wan::backhaul_mode == Q6_WAN)
								{
									ext_prop = IPACM_Iface::ipacmcfg->GetExtProp(IPA_IP_v6);
									handle_wan_up_ex(ext_prop, IPA_IP_v6, 0);
								}
								else
								{
									handle_wan_up(IPA_IP_v6);
								}
							}
							IPACMDBG_H("Finished checking wan_up_v6\n");
						} else {
							IPACMDBG_H("Wan_V6 haven't up yet\n");
						}
#else
						/* check if Upstream was set before */
						if (IPACM_Wan::isWanUP(ipa_if_num))
						{
							IPACMDBG_H("Upstream was set previously for ipv4, change is_upstream_set flag\n");
							is_upstream_set[IPA_IP_v4] = true;
						}
						if (IPACM_Wan::isWanUP_V6(ipa_if_num))
						{
							IPACMDBG_H("Upstream was set previously for ipv6, change is_upstream_set flag\n");
							is_upstream_set[IPA_IP_v6] = true;
						}
#endif //FEATURE_IPACM_HAL end
						/* Post event to NAT */
						if (data->iptype == IPA_IP_v4)
						{
							ipacm_cmd_q_data evt_data;
							ipacm_event_iface_up *info;

							info = (ipacm_event_iface_up *)
								malloc(sizeof(ipacm_event_iface_up));
							if (info == NULL)
							{
								IPACMERR("Unable to allocate memory\n");
								return;
							}

							memcpy(info->ifname, dev_name, IF_NAME_LEN);
							info->ipv4_addr = data->ipv4_addr;
							info->addr_mask = IPACM_Iface::ipacmcfg->private_subnet_table[0].subnet_mask;

							evt_data.event = IPA_HANDLE_LAN_UP;
							evt_data.evt_data = (void *)info;

							/* Insert IPA_HANDLE_LAN_UP to command queue */
							IPACMDBG_H("posting IPA_HANDLE_LAN_UP for IPv4 with below information\n");
							IPACMDBG_H("IPv4 address:0x%x, IPv4 address mask:0x%x\n",
											info->ipv4_addr, info->addr_mask);
							IPACM_EvtDispatcher::PostEvt(&evt_data);
						}
						IPACMDBG_H("Finish handling IPA_ADDR_ADD_EVENT for ip-family(%d)\n", data->iptype);
					}

					IPACMDBG_H("Finish handling IPA_ADDR_ADD_EVENT for ip-family(%d)\n", data->iptype);
					/* checking if SW-RT_enable */
					if (IPACM_Iface::ipacmcfg->ipa_sw_rt_enable == true)
					{
						/* handle software routing enable event*/
						IPACMDBG_H("IPA_SW_ROUTING_ENABLE for iface: %s \n",IPACM_Iface::ipacmcfg->iface_table[ipa_if_num].iface_name);
						handle_software_routing_enable(false);
					}

				}
			}
		}
		break;
#ifdef FEATURE_IPA_ANDROID
	case IPA_HANDLE_WAN_UP_TETHER:
		IPACMDBG_H("Received IPA_HANDLE_WAN_UP_TETHER event\n");

		data_wan_tether = (ipacm_event_iface_up_tehter*)param;
		if(data_wan_tether == NULL)
		{
			IPACMERR("No event data is found.\n");
			return;
		}
		IPACMDBG_H("Backhaul is sta mode?%d, if_index_tether:%d tether_if_name:%s, xlat %d\n", data_wan_tether->backhaul_type,
					data_wan_tether->if_index_tether,
					IPACM_Iface::ipacmcfg->iface_table[data_wan_tether->if_index_tether].iface_name,
					data_wan_tether->xlat_mux_id);
#ifndef FEATURE_IPACM_HAL
		if (data_wan_tether->if_index_tether != ipa_if_num)
		{
			IPACMERR("IPA_HANDLE_WAN_UP_TETHER tether_if(%d), not valid (%d) ignore\n", data_wan_tether->if_index_tether, ipa_if_num);
			return;
		}
#else /* not offload rndis on WIFI mode on MSM targets */
		if (data_wan_tether->backhaul_type == WLAN_WAN)
		{
			IPACMERR("Not support RNDIS offload on WIFI mode, dun install UL filter rules for WIFI mode\n");

			/* clean rndis  header, routing rules */
			IPACMDBG_H("left %d eth clients need to be deleted \n ", num_eth_client);
			for (i = 0; i < num_eth_client; i++)
			{
				/* First reset nat rules and then route rules */
				if(get_client_memptr(eth_client, i)->ipv4_set == true)
				{
					IPACMDBG_H("Clean Nat Rules for ipv4:0x%x\n", get_client_memptr(eth_client, i)->v4_addr);
					CtList->HandleNeighIpAddrDelEvt(get_client_memptr(eth_client, i)->v4_addr);
				}
				if (delete_eth_rtrules(i, IPA_IP_v4))
					IPACMERR("unbale to delete usb-client v4 route rules for index %d\n", i);

				if (delete_eth_rtrules(i, IPA_IP_v6))
					IPACMERR("unbale to delete ecm-client v6 route rules for index %d\n", i);

				IPACMDBG_H("Delete %d client header\n", num_eth_client);

				if(get_client_memptr(eth_client, i)->ipv4_header_set == true)
				{
					if (m_header.DeleteHeaderHdl(get_client_memptr(eth_client, i)->hdr_hdl_v4)
						== false)
						IPACMERR("unbale to delete usb-client v4 header for index %d\n", i);
				}

				if(get_client_memptr(eth_client, i)->ipv6_header_set == true)
				{
					if (m_header.DeleteHeaderHdl(get_client_memptr(eth_client, i)->hdr_hdl_v6)
							== false)
						IPACMERR("unbale to delete usb-client v6 header for index %d\n", i);
				}
			} /* end of for loop */
			return;
		}
#endif // FEATURE_IPACM_HAL end
		if (ip_type == IPA_IP_v4 || ip_type == IPA_IP_MAX)
		{
#ifdef FEATURE_IPACM_HAL
			if (is_upstream_set[IPA_IP_v4] == false)
			{
				IPACMDBG_H("Add upstream for IPv4.\n");
				is_upstream_set[IPA_IP_v4] = true;
				if (is_downstream_set[IPA_IP_v4] == true)
				{
					IPACMDBG_H("Downstream was set before, adding UL rules.\n");
					if (data_wan_tether->backhaul_type == Q6_WAN)
					{
							ext_prop = IPACM_Iface::ipacmcfg->GetExtProp(IPA_IP_v4);
							handle_wan_up_ex(ext_prop, IPA_IP_v4,
								data_wan_tether->xlat_mux_id);
					} else {
							handle_wan_up(IPA_IP_v4);
					}
				}
			}
#else
			if (data_wan_tether->backhaul_type == Q6_WAN)
			{
					ext_prop = IPACM_Iface::ipacmcfg->GetExtProp(IPA_IP_v4);
					handle_wan_up_ex(ext_prop, IPA_IP_v4, data_wan_tether->xlat_mux_id);
			} else {
					handle_wan_up(IPA_IP_v4);
			}
#endif // FEATURE_IPACM_HAL end
		}
		break;

	case IPA_HANDLE_WAN_UP_V6_TETHER:
		IPACMDBG_H("Received IPA_HANDLE_WAN_UP_V6_TETHER event\n");

		data_wan_tether = (ipacm_event_iface_up_tehter*)param;
		if (data_wan_tether == NULL)
		{
			IPACMERR("No event data is found.\n");
			return;
		}
		IPACMDBG_H("Backhaul is sta mode?%d, if_index_tether:%d tether_if_name:%s\n", data_wan_tether->backhaul_type,
					data_wan_tether->if_index_tether,
					IPACM_Iface::ipacmcfg->iface_table[data_wan_tether->if_index_tether].iface_name);
#ifndef FEATURE_IPACM_HAL
		if (data_wan_tether->if_index_tether != ipa_if_num)
		{
			IPACMERR("IPA_HANDLE_WAN_UP_V6_TETHER tether_if(%d), not valid (%d) ignore\n", data_wan_tether->if_index_tether, ipa_if_num);
			return;
		}
#endif // FEATURE_IPACM_HAL end
		if (ip_type == IPA_IP_v6 || ip_type == IPA_IP_MAX)
		{
#ifdef FEATURE_IPACM_HAL
			if (is_upstream_set[IPA_IP_v6] == false)
			{
				IPACMDBG_H("Add upstream for IPv6.\n");
				is_upstream_set[IPA_IP_v6] = true;

				if (is_downstream_set[IPA_IP_v6] == true)
				{
					IPACMDBG_H("Downstream was set before, adding UL rules.\n");
					memcpy(ipv6_prefix, data_wan_tether->ipv6_prefix, sizeof(ipv6_prefix));
					install_ipv6_prefix_flt_rule(data_wan_tether->ipv6_prefix);
					if (data_wan_tether->backhaul_type == Q6_WAN)
					{
						ext_prop = IPACM_Iface::ipacmcfg->GetExtProp(IPA_IP_v6);
						handle_wan_up_ex(ext_prop, IPA_IP_v6, 0);
					}
					else
					{
						handle_wan_up(IPA_IP_v6);
					}
				}
			}
#else
			if (data_wan_tether->backhaul_type == Q6_WAN)
			{
				ext_prop = IPACM_Iface::ipacmcfg->GetExtProp(IPA_IP_v6);
				handle_wan_up_ex(ext_prop, IPA_IP_v6, 0);
			} else {
				handle_wan_up(IPA_IP_v6);
			}
#endif // FEATURE_IPACM_HAL end
		}
		break;

	case IPA_HANDLE_WAN_DOWN_TETHER:
		IPACMDBG_H("Received IPA_HANDLE_WAN_DOWN_TETHER event\n");
		data_wan_tether = (ipacm_event_iface_up_tehter*)param;
		if (data_wan_tether == NULL)
		{
			IPACMERR("No event data is found.\n");
			return;
		}
		IPACMDBG_H("Backhaul is sta mode?%d, if_index_tether:%d tether_if_name:%s\n", data_wan_tether->backhaul_type,
					data_wan_tether->if_index_tether,
					IPACM_Iface::ipacmcfg->iface_table[data_wan_tether->if_index_tether].iface_name);
#ifndef FEATURE_IPACM_HAL
		if (data_wan_tether->if_index_tether != ipa_if_num)
		{
			IPACMERR("IPA_HANDLE_WAN_DOWN_TETHER tether_if(%d), not valid (%d) ignore\n", data_wan_tether->if_index_tether, ipa_if_num);
			return;
		}
#endif // FEATURE_IPACM_HAL end
		if (ip_type == IPA_IP_v4 || ip_type == IPA_IP_MAX)
		{
#ifdef FEATURE_IPACM_HAL
			if(is_upstream_set[IPA_IP_v4] == true)
			{
				IPACMDBG_H("Del upstream for IPv4.\n");
				is_upstream_set[IPA_IP_v4] = false;
				if(is_downstream_set[IPA_IP_v4] == true)
				{
					IPACMDBG_H("Downstream was set before, deleting UL rules.\n");
					handle_wan_down(data_wan_tether->backhaul_type);
				}
			}
#else
			handle_wan_down(data_wan_tether->backhaul_type);
#endif // FEATURE_IPACM_HAL end
		}
		break;

	case IPA_HANDLE_WAN_DOWN_V6_TETHER:
		IPACMDBG_H("Received IPA_HANDLE_WAN_DOWN_V6_TETHER event\n");
		data_wan_tether = (ipacm_event_iface_up_tehter*)param;
		if(data_wan_tether == NULL)
		{
			IPACMERR("No event data is found.\n");
			return;
		}
		IPACMDBG_H("Backhaul is sta mode?%d, if_index_tether:%d tether_if_name:%s\n", data_wan_tether->backhaul_type,
					data_wan_tether->if_index_tether,
					IPACM_Iface::ipacmcfg->iface_table[data_wan_tether->if_index_tether].iface_name);
#ifndef FEATURE_IPACM_HAL
		if (data_wan_tether->if_index_tether != ipa_if_num)
		{
			IPACMERR("IPA_HANDLE_WAN_DOWN_V6_TETHER tether_if(%d), not valid (%d) ignore\n", data_wan_tether->if_index_tether, ipa_if_num);
			return;
		}
#endif // FEATURE_IPACM_HAL end
		if (ip_type == IPA_IP_v6 || ip_type == IPA_IP_MAX)
		{
#ifdef FEATURE_IPACM_HAL
			if (is_upstream_set[IPA_IP_v6] == true)
			{
				IPACMDBG_H("Del upstream for IPv6.\n");
				is_upstream_set[IPA_IP_v6] = false;
				if(is_downstream_set[IPA_IP_v6] == true)
				{
					IPACMDBG_H("Downstream was set before, deleting UL rules.\n");
					/* reset usb-client ipv6 rt-rules */
					handle_lan_client_reset_rt(IPA_IP_v6);
					handle_wan_down_v6(data_wan_tether->backhaul_type);
				}
			}
#else
			/* reset usb-client ipv6 rt-rules */
			handle_lan_client_reset_rt(IPA_IP_v6);
			handle_wan_down_v6(data_wan_tether->backhaul_type);
#endif // FEATURE_IPACM_HAL end
		}
		break;

	case IPA_DOWNSTREAM_ADD:
	{
		ipacm_event_ipahal_stream *data = (ipacm_event_ipahal_stream *)param;
		ipa_interface_index = iface_ipa_index_query(data->if_index);
		if (ipa_interface_index == ipa_if_num)
		{
			IPACMDBG_H("Received IPA_DOWNSTREAM_ADD event.\n");
#ifdef FEATURE_IPA_ANDROID
			if (IPACM_Wan::isXlat() && (data->prefix.iptype == IPA_IP_v4))
			{
				/* indicate v4-offload */
				IPACM_OffloadManager::num_offload_v4_tethered_iface++;
				IPACMDBG_H("in xlat: update num_offload_v4_tethered_iface %d\n", IPACM_OffloadManager::num_offload_v4_tethered_iface);

				/* xlat not support for 2st tethered iface */
				if (IPACM_OffloadManager::num_offload_v4_tethered_iface > 1)
				{
					IPACMDBG_H("Not support 2st downstream iface %s for xlat, cur: %d\n", dev_name,
						IPACM_OffloadManager::num_offload_v4_tethered_iface);
					return;
				}
			}

			IPACMDBG_H(" support downstream iface %s, cur %d\n", dev_name,
				IPACM_OffloadManager::num_offload_v4_tethered_iface);
#endif
			if (data->prefix.iptype < IPA_IP_MAX && is_downstream_set[data->prefix.iptype] == false)
			{
				IPACMDBG_H("Add downstream for IP iptype %d\n", data->prefix.iptype);
				is_downstream_set[data->prefix.iptype] = true;
				memcpy(&prefix[data->prefix.iptype], &data->prefix,
					sizeof(prefix[data->prefix.iptype]));

				if (is_upstream_set[data->prefix.iptype] == true)
				{
					IPACMDBG_H("Upstream was set before, adding UL rules.\n");
					if (ip_type == IPA_IP_MAX || ip_type == data->prefix.iptype)
					{
						if (data->prefix.iptype == IPA_IP_v6) /* ipv6 only */
						{
							/* Only offload clients has same prefix as Andorid gave */
							ipv6_prefix[0] = data->prefix.v6Addr[0];
							ipv6_prefix[1] = data->prefix.v6Addr[1];
							IPACMDBG_H("ipv6_prefix0x%x:%x\n", ipv6_prefix[0], ipv6_prefix[1]);
							install_ipv6_prefix_flt_rule(ipv6_prefix);
						}

						if (IPACM_Wan::backhaul_mode == Q6_WAN) /* LTE */
						{
							ext_prop = IPACM_Iface::ipacmcfg->GetExtProp(data->prefix.iptype);
							if (data->prefix.iptype == IPA_IP_v4)
							{
								IPACMDBG_H("check getXlat_Mux_Id:%d\n", IPACM_Wan::getXlat_Mux_Id());
								handle_wan_up_ex(ext_prop, data->prefix.iptype,
									IPACM_Wan::getXlat_Mux_Id());
							}
							else {
								handle_wan_up_ex(ext_prop, data->prefix.iptype, 0);
							}
						} else {
							handle_wan_up(data->prefix.iptype); /* STA */
						}
					}
				}
			} else {
				IPACMDBG_H("downstream for IP iptype %d already set \n", data->prefix.iptype);
			}
		}
		break;
	}

	case IPA_DOWNSTREAM_DEL:
	{
		ipacm_event_ipahal_stream *data = (ipacm_event_ipahal_stream *)param;
		ipa_interface_index = iface_ipa_index_query(data->if_index);
		if (ipa_interface_index == ipa_if_num)
		{
			IPACMDBG_H("Received IPA_DOWNSTREAM_DEL event.\n");
			if (is_downstream_set[data->prefix.iptype] == true)
			{
				IPACMDBG_H("Del downstream for IP iptype %d.\n", data->prefix.iptype);
				is_downstream_set[data->prefix.iptype] = false;

				if (is_upstream_set[data->prefix.iptype] == true)
				{
					IPACMDBG_H("Upstream was set before, deleting UL rules.\n");
					if (data->prefix.iptype == IPA_IP_v4)
					{
						handle_wan_down(IPACM_Wan::backhaul_mode); /* LTE STA */
					} else {
						handle_lan_client_reset_rt(IPA_IP_v6);
						handle_wan_down_v6(IPACM_Wan::backhaul_mode); /* LTE STA */
					}
				}
			}
		}
		break;
	}

#else // above Andorid
	case IPA_HANDLE_WAN_UP:
		IPACMDBG_H("Received IPA_HANDLE_WAN_UP event\n");

		ipacm_event_iface_up* data_wan = (ipacm_event_iface_up*)param;
		if (data_wan == NULL)
		{
			IPACMERR("No event data is found.\n");
			return;
		}
		IPACMDBG_H("Backhaul is sta mode?%d\n", data_wan->backhaul_type);
		if (ip_type == IPA_IP_v4 || ip_type == IPA_IP_MAX)
		{
		if (data_wan->backhaul_type == Q6_WAN)
		{
				ext_prop = IPACM_Iface::ipacmcfg->GetExtProp(IPA_IP_v4);
				handle_wan_up_ex(ext_prop, IPA_IP_v4, data_wan->xlat_mux_id);
		}
		else
		{
			handle_wan_up(IPA_IP_v4);
		}
		}
		break;

	case IPA_HANDLE_WAN_UP_V6:
		IPACMDBG_H("Received IPA_HANDLE_WAN_UP_V6 event\n");

		data_wan = (ipacm_event_iface_up*)param;
		if (data_wan == NULL)
		{
			IPACMERR("No event data is found.\n");
			return;
		}
		IPACMDBG_H("Backhaul is sta mode?%d\n", data_wan->backhaul_type);
		if (ip_type == IPA_IP_v6 || ip_type == IPA_IP_MAX)
		{
			memcpy(ipv6_prefix, data_wan->ipv6_prefix, sizeof(ipv6_prefix));
			install_ipv6_prefix_flt_rule(data_wan->ipv6_prefix);

			/* MTU might have changed. Need to update ipv4 MTU rule if up */
			if (IPACM_Wan::isWanUP(ipa_if_num))
				handle_private_subnet_android(IPA_IP_v4);

			if (data_wan->backhaul_type == Q6_WAN)
			{
				ext_prop = IPACM_Iface::ipacmcfg->GetExtProp(IPA_IP_v6);
				handle_wan_up_ex(ext_prop, IPA_IP_v6, 0);
			}
			else
			{
				handle_wan_up(IPA_IP_v6);
			}
		}
		break;

	case IPA_HANDLE_WAN_DOWN:
		IPACMDBG_H("Received IPA_HANDLE_WAN_DOWN event\n");
		data_wan = (ipacm_event_iface_up*)param;
		if (data_wan == NULL)
		{
			IPACMERR("No event data is found.\n");
			return;
		}
		IPACMDBG_H("Backhaul is sta mode?%d\n", data_wan->backhaul_type);
		if (ip_type == IPA_IP_v4 || ip_type == IPA_IP_MAX)
		{
			handle_wan_down(data_wan->backhaul_type);
		}
		break;

	case IPA_HANDLE_WAN_DOWN_V6:
		IPACMDBG_H("Received IPA_HANDLE_WAN_DOWN_V6 event\n");
		data_wan = (ipacm_event_iface_up*)param;
		if (data_wan == NULL)
		{
			IPACMERR("No event data is found.\n");
			return;
		}
		/* clean up v6 RT rules*/
		IPACMDBG_H("Received IPA_WAN_V6_DOWN in LAN-instance and need clean up client IPv6 address \n");
		/* reset usb-client ipv6 rt-rules */
		handle_lan_client_reset_rt(IPA_IP_v6);

		IPACMDBG_H("Backhaul is sta mode?%d\n", data_wan->backhaul_type);
		if (ip_type == IPA_IP_v6 || ip_type == IPA_IP_MAX)
		{
			handle_wan_down_v6(data_wan->backhaul_type);
		}
		break;
#endif // FEATURE_IPA_ANDROID end

	case IPA_NEIGH_CLIENT_IP_ADDR_ADD_EVENT:
		{
			ipacm_event_data_all *data = (ipacm_event_data_all *)param;
			ipa_interface_index = iface_ipa_index_query(data->if_index);
			IPACMDBG_H("Recieved IPA_NEIGH_CLIENT_IP_ADDR_ADD_EVENT event \n");
			IPACMDBG_H("check iface %s category: %d\n", dev_name, ipa_if_cate);

			/* if RNDIS under WIFI mode in MSM, dun add RT rule*/
#ifdef FEATURE_IPACM_HAL
			if(IPACM_Wan::backhaul_mode == WLAN_WAN) /* WIFI */
			{
				IPACMDBG_H(" dun construct header and RT-rules for RNDIS-PC in WIFI mode on MSM targets (STA %d) \n", IPACM_Wan::backhaul_mode);
				return;
			}
#endif
			if (ipa_interface_index == ipa_if_num && ipa_if_cate == ODU_IF)
			{
				IPACMDBG_H("ODU iface got v4-ip \n");
				/* first construc ODU full header */
				if ((ipv4_header_set == false) && (ipv6_header_set == false))
				{
					/* construct ODU RT tbl */
					handle_odu_hdr_init(data->mac_addr);
					if (IPACM_Iface::ipacmcfg->ipacm_odu_embms_enable == true)
					{
						handle_odu_route_add();
						IPACMDBG_H("construct ODU header and route rules, embms_flag (%d) \n", IPACM_Iface::ipacmcfg->ipacm_odu_embms_enable);
					}
					else
					{
						IPACMDBG_H("construct ODU header only, embms_flag (%d) \n", IPACM_Iface::ipacmcfg->ipacm_odu_embms_enable);
					}
				}
				/* if ODU in bridge mode, directly return */
				if(IPACM_Iface::ipacmcfg->ipacm_odu_router_mode == false)
				{
					IPACMDBG_H("ODU is in bridge mode, no action \n");
					return;
				}
			}

			if (ipa_interface_index == ipa_if_num
#ifdef FEATURE_L2TP
				|| is_vlan_event(data->iface_name)
				|| (is_l2tp_event(data->iface_name) && ipa_if_cate == ODU_IF)
#endif
				)
			{
				IPACMDBG_H("ETH iface got client \n");
				if(ipa_interface_index == ipa_if_num)
				{
					/* first construc ETH full header */
					handle_eth_hdr_init(data->mac_addr);
					IPACMDBG_H("construct ETH header and route rules \n");
					/* Associate with IP and construct RT-rule */
					if (handle_eth_client_ipaddr(data) == IPACM_FAILURE)
					{
						return;
					}
					handle_eth_client_route_rule(data->mac_addr, data->iptype);
					if (data->iptype == IPA_IP_v4)
					{
						/* Add NAT rules after ipv4 RT rules are set */
						CtList->HandleNeighIpAddrAddEvt(data);
					}
					eth_bridge_post_event(IPA_ETH_BRIDGE_CLIENT_ADD, IPA_IP_MAX, data->mac_addr, NULL, data->iface_name,
						IPA_CLIENT_MAX);
				}
#ifdef FEATURE_L2TP
				else if(is_l2tp_event(data->iface_name) && ipa_if_cate == ODU_IF)
				{

					if(IPACM_Iface::ipacmcfg->GetIPAVer() >= IPA_HW_None && IPACM_Iface::ipacmcfg->GetIPAVer() < IPA_HW_v4_0)
					{
						/* Add corresponding ipa_rm_resource_name of TX-endpoint up before IPV6 RT-rule set */
						IPACMDBG_H("dev %s add producer dependency\n", dev_name);
						if (tx_prop != NULL)
						{
							IPACMDBG_H("depend Got pipe %d rm index : %d \n", tx_prop->tx[0].dst_pipe, IPACM_Iface::ipacmcfg->ipa_client_rm_map_tbl[tx_prop->tx[0].dst_pipe]);
							IPACM_Iface::ipacmcfg->AddRmDepend(IPACM_Iface::ipacmcfg->ipa_client_rm_map_tbl[tx_prop->tx[0].dst_pipe],false);
						}
					}
					eth_bridge_post_event(IPA_ETH_BRIDGE_CLIENT_ADD, IPA_IP_MAX, data->mac_addr, NULL, data->iface_name,
						IPA_CLIENT_MAX);
				}
				else
				{
					if(data->iptype == IPA_IP_v6 && is_unique_local_ipv6_addr(data->ipv6_addr))
					{
						eth_bridge_post_event(IPA_HANDLE_VLAN_CLIENT_INFO, IPA_IP_MAX, data->mac_addr, data->ipv6_addr, data->iface_name, IPA_CLIENT_MAX);
					}
				}
#endif
				return;
			}
		}
		break;

	case IPA_NEIGH_CLIENT_IP_ADDR_DEL_EVENT:
		{
			ipacm_event_data_all *data = (ipacm_event_data_all *)param;
			ipa_interface_index = iface_ipa_index_query(data->if_index);

			IPACMDBG_H("Received IPA_NEIGH_CLIENT_IP_ADDR_DEL_EVENT event. \n");
			IPACMDBG_H("check iface %s category: %d\n", dev_name, ipa_if_cate);
			/* if ODU in bridge mode, directly return */
			if (ipa_if_cate == ODU_IF && IPACM_Iface::ipacmcfg->ipacm_odu_router_mode == false)
			{
				IPACMDBG_H("ODU is in bridge mode, no action \n");
				return;
			}

			if (ipa_interface_index == ipa_if_num
#ifdef FEATURE_L2TP
				|| (is_l2tp_event(data->iface_name) && ipa_if_cate == ODU_IF)
#endif
				)
			{
				if(ipa_interface_index == ipa_if_num)
				{
					if (data->iptype == IPA_IP_v6)
					{
						handle_del_ipv6_addr(data);
						return;
					}
					IPACMDBG_H("LAN iface delete client \n");
					handle_eth_client_down_evt(data->mac_addr);
				}
				else
				{
					eth_bridge_post_event(IPA_ETH_BRIDGE_CLIENT_DEL, IPA_IP_MAX, data->mac_addr, NULL, data->iface_name,
						IPA_CLIENT_MAX);
				}
				return;
			}
		}
		break;

	case IPA_SW_ROUTING_ENABLE:
		IPACMDBG_H("Received IPA_SW_ROUTING_ENABLE\n");
		/* handle software routing enable event*/
		handle_software_routing_enable(false);
		break;

	case IPA_SW_ROUTING_DISABLE:
		IPACMDBG_H("Received IPA_SW_ROUTING_DISABLE\n");
		/* handle software routing disable event*/
		handle_software_routing_disable(false);
		break;

	case IPA_CRADLE_WAN_MODE_SWITCH:
	{
		IPACMDBG_H("Received IPA_CRADLE_WAN_MODE_SWITCH event.\n");
		ipacm_event_cradle_wan_mode* wan_mode = (ipacm_event_cradle_wan_mode*)param;
		if(wan_mode == NULL)
		{
			IPACMERR("Event data is empty.\n");
			return;
		}

		if(wan_mode->cradle_wan_mode == BRIDGE)
		{
			handle_cradle_wan_mode_switch(true);
		}
		else
		{
			handle_cradle_wan_mode_switch(false);
		}
	}
	break;

	case IPA_TETHERING_STATS_UPDATE_EVENT:
	{
		IPACMDBG_H("Received IPA_TETHERING_STATS_UPDATE_EVENT event.\n");
		if (IPACM_Wan::isWanUP(ipa_if_num) || IPACM_Wan::isWanUP_V6(ipa_if_num))
		{
			if(IPACM_Wan::backhaul_mode == Q6_WAN) /* LTE */
			{
				ipa_get_data_stats_resp_msg_v01 *data = (ipa_get_data_stats_resp_msg_v01 *)param;
				IPACMDBG("Received IPA_TETHERING_STATS_UPDATE_STATS ipa_stats_type: %d\n",data->ipa_stats_type);
				IPACMDBG("Received %d UL, %d DL pipe stats\n",data->ul_src_pipe_stats_list_len,
					data->dl_dst_pipe_stats_list_len);
				if (data->ipa_stats_type != QMI_IPA_STATS_TYPE_PIPE_V01)
				{
					IPACMERR("not valid pipe stats enum(%d)\n", data->ipa_stats_type);
					return;
				}
				handle_tethering_stats_event(data);
			}
		}
	}
	break;

	default:
		break;
	}

	return;
}


int IPACM_Lan::handle_del_ipv6_addr(ipacm_event_data_all *data)
{
	uint32_t tx_index;
	uint32_t rt_hdl;
	int num_v6 =0, clnt_indx;

	clnt_indx = get_eth_client_index(data->mac_addr);
	if (clnt_indx == IPACM_INVALID_INDEX)
	{
		IPACMERR("eth client not found/attached \n");
		return IPACM_FAILURE;
	}

	if(data->iptype == IPA_IP_v6)
	{
		if ((data->ipv6_addr[0] != 0) || (data->ipv6_addr[1] != 0) ||
				(data->ipv6_addr[2] != 0) || (data->ipv6_addr[3] != 0))
		{
			IPACMDBG_H("ipv6 address got: 0x%x:%x:%x:%x\n", data->ipv6_addr[0], data->ipv6_addr[1], data->ipv6_addr[2], data->ipv6_addr[3]);
			for(num_v6=0;num_v6 < get_client_memptr(eth_client, clnt_indx)->ipv6_set;num_v6++)
			{
				if( data->ipv6_addr[0] == get_client_memptr(eth_client, clnt_indx)->v6_addr[num_v6][0] &&
					data->ipv6_addr[1] == get_client_memptr(eth_client, clnt_indx)->v6_addr[num_v6][1] &&
					data->ipv6_addr[2]== get_client_memptr(eth_client, clnt_indx)->v6_addr[num_v6][2] &&
					data->ipv6_addr[3] == get_client_memptr(eth_client, clnt_indx)->v6_addr[num_v6][3])
				{
					IPACMDBG_H("ipv6 addr is found at position:%d for client:%d\n", num_v6, clnt_indx);
					break;
				}
			}
		}
		else
		{
			IPACMDBG_H("Invalid ipv6 address\n");
			return IPACM_FAILURE;
		}
		if (num_v6 == IPV6_NUM_ADDR)
		{
			IPACMDBG_H("ipv6 addr is not found. \n");
			return IPACM_FAILURE;
		}

		for(tx_index = 0; tx_index < iface_query->num_tx_props; tx_index++)
		{
			if((tx_prop->tx[tx_index].ip == IPA_IP_v6) && (get_client_memptr(eth_client, clnt_indx)->route_rule_set_v6 != 0))
			{
				IPACMDBG_H("Delete client index %d ipv6 RT-rules for %d-st ipv6 for tx:%d\n", clnt_indx, num_v6, tx_index);
				rt_hdl = get_client_memptr(eth_client, clnt_indx)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6[num_v6];
				if(m_routing.DeleteRoutingHdl(rt_hdl, IPA_IP_v6) == false)
				{
					return IPACM_FAILURE;
				}
				rt_hdl = get_client_memptr(eth_client, clnt_indx)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6_wan[num_v6];
				if(m_routing.DeleteRoutingHdl(rt_hdl, IPA_IP_v6) == false)
				{
					return IPACM_FAILURE;
				}
				get_client_memptr(eth_client, clnt_indx)->ipv6_set--;
				get_client_memptr(eth_client, clnt_indx)->route_rule_set_v6--;

				for(;num_v6< get_client_memptr(eth_client, clnt_indx)->ipv6_set;num_v6++)
				{
					get_client_memptr(eth_client, clnt_indx)->v6_addr[num_v6][0] =
						get_client_memptr(eth_client, clnt_indx)->v6_addr[num_v6+1][0];
					get_client_memptr(eth_client, clnt_indx)->v6_addr[num_v6][1] =
						get_client_memptr(eth_client, clnt_indx)->v6_addr[num_v6+1][1];
					get_client_memptr(eth_client, clnt_indx)->v6_addr[num_v6][2] =
						get_client_memptr(eth_client, clnt_indx)->v6_addr[num_v6+1][2];
					get_client_memptr(eth_client, clnt_indx)->v6_addr[num_v6][3] =
						get_client_memptr(eth_client, clnt_indx)->v6_addr[num_v6+1][3];
					get_client_memptr(eth_client, clnt_indx)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6[num_v6] =
						get_client_memptr(eth_client, clnt_indx)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6[num_v6+1];
					get_client_memptr(eth_client, clnt_indx)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6_wan[num_v6] =
						get_client_memptr(eth_client, clnt_indx)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6_wan[num_v6+1];
				}
			}
		}
	}
	return IPACM_SUCCESS;
}

/* delete filter rule for wan_down event for IPv4*/
int IPACM_Lan::handle_wan_down(ipacm_wan_iface_type backhaul_mode)
{
	ipa_fltr_installed_notif_req_msg_v01 flt_index;
	int fd;

	fd = open(IPA_DEVICE_NAME, O_RDWR);
	if (0 == fd)
	{
		IPACMERR("Failed opening %s.\n", IPA_DEVICE_NAME);
		return IPACM_FAILURE;
	}

#ifdef FEATURE_IPA_ANDROID
		/* indicate v4-offload remove */
		if (IPACM_Wan::isXlat() && (IPACM_OffloadManager::num_offload_v4_tethered_iface > 0)) {
			IPACM_OffloadManager::num_offload_v4_tethered_iface--;
			IPACMDBG_H("num_offload_v4_tethered_iface %d\n", IPACM_OffloadManager::num_offload_v4_tethered_iface);
		}
#endif

	if(backhaul_mode == Q6_WAN && modem_ul_v4_set == true)
	{
		if (num_wan_ul_fl_rule_v4 > MAX_WAN_UL_FILTER_RULES)
		{
			IPACMERR("number of wan_ul_fl_rule_v4 (%d) > MAX_WAN_UL_FILTER_RULES (%d), aborting...\n", num_wan_ul_fl_rule_v4, MAX_WAN_UL_FILTER_RULES);
			close(fd);
			return IPACM_FAILURE;
		}
		if (num_wan_ul_fl_rule_v4 == 0)
		{
			IPACMERR("No modem UL rules were installed, return...\n");
			close(fd);
			return IPACM_FAILURE;
		}
		if (m_filtering.DeleteFilteringHdls(wan_ul_fl_rule_hdl_v4,
			IPA_IP_v4, num_wan_ul_fl_rule_v4) == false)
		{
			IPACMERR("Error Deleting RuleTable(1) to Filtering, aborting...\n");
			close(fd);
			return IPACM_FAILURE;
		}
		IPACM_Iface::ipacmcfg->decreaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v4, num_wan_ul_fl_rule_v4);

		memset(wan_ul_fl_rule_hdl_v4, 0, MAX_WAN_UL_FILTER_RULES * sizeof(uint32_t));
		num_wan_ul_fl_rule_v4 = 0;
		modem_ul_v4_set = false;

		memset(&flt_index, 0, sizeof(flt_index));
		flt_index.source_pipe_index = ioctl(fd, IPA_IOC_QUERY_EP_MAPPING, rx_prop->rx[0].src_pipe);
		if ((int)flt_index.source_pipe_index == -1)
		{
			IPACMERR("Error Query src pipe idx, aborting...\n");
			close(fd);
			return IPACM_FAILURE;
		}
		flt_index.install_status = IPA_QMI_RESULT_SUCCESS_V01;
		if (!IPACM_Iface::ipacmcfg->isIPAv3Supported())
		{
			flt_index.filter_index_list_len = 0;
		}
		else /* IPAv3 */
		{
			flt_index.rule_id_valid = 1;
			flt_index.rule_id_len = 0;
		}
		flt_index.embedded_pipe_index_valid = 1;
		flt_index.embedded_pipe_index = ioctl(fd, IPA_IOC_QUERY_EP_MAPPING, IPA_CLIENT_APPS_LAN_WAN_PROD);
		if ((int)flt_index.embedded_pipe_index == -1)
		{
			IPACMERR("Error Query emb pipe idx, aborting...\n");
			close(fd);
			return IPACM_FAILURE;
		}
		flt_index.retain_header_valid = 1;
		flt_index.retain_header = 0;
		flt_index.embedded_call_mux_id_valid = 1;
		flt_index.embedded_call_mux_id = v4_mux_id;
		v4_mux_id = 0;
		if(false == m_filtering.SendFilteringRuleIndex(&flt_index))
		{
			IPACMERR("Error sending filtering rule index, aborting...\n");
			close(fd);
			return IPACM_FAILURE;
		}
	}
	else
	{
		if (m_filtering.DeleteFilteringHdls(&lan_wan_fl_rule_hdl[0], IPA_IP_v4, 1) == false)
		{
			IPACMERR("Error Adding RuleTable(1) to Filtering, aborting...\n");
			close(fd);
			return IPACM_FAILURE;
		}
		IPACM_Iface::ipacmcfg->decreaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v4, 1);
		sta_ul_v4_set = false;
	}

	/* clean MTU rules if needed */
	handle_private_subnet_android(IPA_IP_v4);

	close(fd);
	return IPACM_SUCCESS;
}

/* handle new_address event*/
int IPACM_Lan::handle_addr_evt(ipacm_event_data_addr *data)
{
	struct ipa_ioc_add_rt_rule *rt_rule;
	struct ipa_rt_rule_add *rt_rule_entry;
	const int NUM_RULES = 1;
	uint32_t num_ipv6_addr;
	int res = IPACM_SUCCESS;
#ifdef FEATURE_IPACM_HAL
	IPACM_OffloadManager* OffloadMng;
#endif

	IPACMDBG_H("set route/filter rule ip-type: %d \n", data->iptype);

/* Add private subnet*/
#ifdef FEATURE_IPA_ANDROID
	if (data->iptype == IPA_IP_v4)
	{
		IPACMDBG_H("current IPACM private subnet_addr number(%d)\n", IPACM_Iface::ipacmcfg->ipa_num_private_subnet);
		if_ipv4_subnet = (data->ipv4_addr >> 8) << 8;
		IPACMDBG_H(" Add IPACM private subnet_addr as: 0x%x \n", if_ipv4_subnet);
		if(IPACM_Iface::ipacmcfg->AddPrivateSubnet(if_ipv4_subnet, ipa_if_num) == false)
		{
			IPACMERR(" can't Add IPACM private subnet_addr as: 0x%x \n", if_ipv4_subnet);
		}
	}
#endif /* defined(FEATURE_IPA_ANDROID)*/

	/* Update the IP Type. */
	config_ip_type(data->iptype);

	if (data->iptype == IPA_IP_v4)
	{
		rt_rule = (struct ipa_ioc_add_rt_rule *)
			 calloc(1, sizeof(struct ipa_ioc_add_rt_rule) +
							NUM_RULES * sizeof(struct ipa_rt_rule_add));

		if (!rt_rule)
		{
			IPACMERR("Error Locate ipa_ioc_add_rt_rule memory...\n");
			return IPACM_FAILURE;
		}

		rt_rule->commit = 1;
		rt_rule->num_rules = NUM_RULES;
		rt_rule->ip = data->iptype;
		rt_rule_entry = &rt_rule->rules[0];
		rt_rule_entry->at_rear = false;
		rt_rule_entry->rule.dst = IPA_CLIENT_APPS_LAN_CONS;  //go to A5
		rt_rule_entry->rule.attrib.attrib_mask = IPA_FLT_DST_ADDR;
		strlcpy(rt_rule->rt_tbl_name, IPACM_Iface::ipacmcfg->rt_tbl_lan_v4.name, sizeof(rt_rule->rt_tbl_name));
		rt_rule_entry->rule.attrib.u.v4.dst_addr      = data->ipv4_addr;
		rt_rule_entry->rule.attrib.u.v4.dst_addr_mask = 0xFFFFFFFF;
		if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
			rt_rule_entry->rule.hashable = true;
		if (false == m_routing.AddRoutingRule(rt_rule))
		{
			IPACMERR("Routing rule addition failed!\n");
			res = IPACM_FAILURE;
			goto fail;
		}
		else if (rt_rule_entry->status)
		{
			IPACMERR("rt rule adding failed. Result=%d\n", rt_rule_entry->status);
			res = rt_rule_entry->status;
			goto fail;
		}
		dft_rt_rule_hdl[0] = rt_rule_entry->rt_rule_hdl;
		IPACMDBG_H("ipv4 iface rt-rule hdl1=0x%x\n", dft_rt_rule_hdl[0]);
		/* initial multicast/broadcast/fragment filter rule */

		init_fl_rule(data->iptype);
#ifdef FEATURE_L2TP
		if(ipa_if_cate == WLAN_IF)
		{
			add_tcp_syn_flt_rule(data->iptype);
		}
#endif
		install_ipv4_icmp_flt_rule();

		/* populate the flt rule offset for eth bridge */
		eth_bridge_flt_rule_offset[data->iptype] = ipv4_icmp_flt_rule_hdl[0];
		eth_bridge_post_event(IPA_ETH_BRIDGE_IFACE_UP, IPA_IP_v4, NULL, NULL, NULL, IPA_CLIENT_MAX);
	}
	else
	{
	    /* check if see that v6-addr already or not*/
	    for(num_ipv6_addr=0;num_ipv6_addr<num_dft_rt_v6;num_ipv6_addr++)
	    {
            if((ipv6_addr[num_ipv6_addr][0] == data->ipv6_addr[0]) &&
	           (ipv6_addr[num_ipv6_addr][1] == data->ipv6_addr[1]) &&
	           (ipv6_addr[num_ipv6_addr][2] == data->ipv6_addr[2]) &&
	           (ipv6_addr[num_ipv6_addr][3] == data->ipv6_addr[3]))
            {
				return IPACM_FAILURE;
				break;
	        }
	    }

		rt_rule = (struct ipa_ioc_add_rt_rule *)
			 calloc(1, sizeof(struct ipa_ioc_add_rt_rule) +
							NUM_RULES * sizeof(struct ipa_rt_rule_add));

		if (!rt_rule)
		{
			IPACMERR("Error Locate ipa_ioc_add_rt_rule memory...\n");
			return IPACM_FAILURE;
		}

		rt_rule->commit = 1;
		rt_rule->num_rules = NUM_RULES;
		rt_rule->ip = data->iptype;
		strlcpy(rt_rule->rt_tbl_name, IPACM_Iface::ipacmcfg->rt_tbl_v6.name, sizeof(rt_rule->rt_tbl_name));

		rt_rule_entry = &rt_rule->rules[0];
		rt_rule_entry->at_rear = false;
		rt_rule_entry->rule.dst = IPA_CLIENT_APPS_LAN_CONS;  //go to A5
		rt_rule_entry->rule.attrib.attrib_mask = IPA_FLT_DST_ADDR;
		rt_rule_entry->rule.attrib.u.v6.dst_addr[0] = data->ipv6_addr[0];
		rt_rule_entry->rule.attrib.u.v6.dst_addr[1] = data->ipv6_addr[1];
		rt_rule_entry->rule.attrib.u.v6.dst_addr[2] = data->ipv6_addr[2];
		rt_rule_entry->rule.attrib.u.v6.dst_addr[3] = data->ipv6_addr[3];
		rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[0] = 0xFFFFFFFF;
		rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[1] = 0xFFFFFFFF;
		rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[2] = 0xFFFFFFFF;
		rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[3] = 0xFFFFFFFF;
		ipv6_addr[num_dft_rt_v6][0] = data->ipv6_addr[0];
		ipv6_addr[num_dft_rt_v6][1] = data->ipv6_addr[1];
		ipv6_addr[num_dft_rt_v6][2] = data->ipv6_addr[2];
		ipv6_addr[num_dft_rt_v6][3] = data->ipv6_addr[3];
		if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
			rt_rule_entry->rule.hashable = true;
		if (false == m_routing.AddRoutingRule(rt_rule))
		{
			IPACMERR("Routing rule addition failed!\n");
			res = IPACM_FAILURE;
			goto fail;
		}
		else if (rt_rule_entry->status)
		{
			IPACMERR("rt rule adding failed. Result=%d\n", rt_rule_entry->status);
			res = rt_rule_entry->status;
			goto fail;
		}
		dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6] = rt_rule_entry->rt_rule_hdl;

		/* setup same rule for v6_wan table*/
		strlcpy(rt_rule->rt_tbl_name, IPACM_Iface::ipacmcfg->rt_tbl_wan_v6.name, sizeof(rt_rule->rt_tbl_name));
		if (false == m_routing.AddRoutingRule(rt_rule))
		{
			IPACMERR("Routing rule addition failed!\n");
			res = IPACM_FAILURE;
			goto fail;
		}
		else if (rt_rule_entry->status)
		{
			IPACMERR("rt rule adding failed. Result=%d\n", rt_rule_entry->status);
			res = rt_rule_entry->status;
			goto fail;
		}
		dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6+1] = rt_rule_entry->rt_rule_hdl;

		IPACMDBG_H("ipv6 wan iface rt-rule hdl=0x%x hdl=0x%x, num_dft_rt_v6: %d \n",
		          dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6],
		          dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + 2*num_dft_rt_v6+1],num_dft_rt_v6);

		if (num_dft_rt_v6 == 0)
		{
#ifdef FEATURE_L2TP
			if(ipa_if_cate == WLAN_IF)
			{
				add_tcp_syn_flt_rule(data->iptype);
			}
			else if(ipa_if_cate == ODU_IF)
			{
				add_tcp_syn_flt_rule_l2tp(IPA_IP_v4);
				add_tcp_syn_flt_rule_l2tp(IPA_IP_v6);
			}
#endif
			install_ipv6_icmp_flt_rule();

			/* populate the flt rule offset for eth bridge */
			eth_bridge_flt_rule_offset[data->iptype] = ipv6_icmp_flt_rule_hdl[0];
			eth_bridge_post_event(IPA_ETH_BRIDGE_IFACE_UP, IPA_IP_v6, NULL, NULL, NULL, IPA_CLIENT_MAX);

			init_fl_rule(data->iptype);
		}
		num_dft_rt_v6++;
		IPACMDBG_H("number of default route rules %d\n", num_dft_rt_v6);
	}

#ifdef FEATURE_IPACM_HAL
	/* check if having pending add_downstream cache*/
	OffloadMng = IPACM_OffloadManager::GetInstance();
	if (OffloadMng == NULL) {
		IPACMERR("failed to get IPACM_OffloadManager instance !\n");
	} else {
		IPACMDBG_H(" check iface %s if having add_downstream cache events\n", dev_name);
		OffloadMng->search_framwork_cache(dev_name);
	}
#endif

	IPACMDBG_H("finish route/filter rule ip-type: %d, res(%d)\n", data->iptype, res);

fail:
	free(rt_rule);
	return res;
}

/* configure private subnet filter rules*/
int IPACM_Lan::handle_private_subnet(ipa_ip_type iptype)
{
	struct ipa_flt_rule_add flt_rule_entry;
	int i;
	bool result;

	ipa_ioc_add_flt_rule *m_pFilteringTable;

	IPACMDBG_H("lan->handle_private_subnet(); set route/filter rule \n");

	if (rx_prop == NULL)
	{
		IPACMDBG_H("No rx properties registered for iface %s\n", dev_name);
		return IPACM_SUCCESS;
	}

	if (iptype == IPA_IP_v4)
	{

		m_pFilteringTable = (struct ipa_ioc_add_flt_rule *)
			 calloc(1,
							sizeof(struct ipa_ioc_add_flt_rule) +
							(IPACM_Iface::ipacmcfg->ipa_num_private_subnet) * sizeof(struct ipa_flt_rule_add)
							);
		if (!m_pFilteringTable)
		{
			PERROR("Error Locate ipa_flt_rule_add memory...\n");
			return IPACM_FAILURE;
		}
		m_pFilteringTable->commit = 1;
		m_pFilteringTable->ep = rx_prop->rx[0].src_pipe;
		m_pFilteringTable->global = false;
		m_pFilteringTable->ip = IPA_IP_v4;
		m_pFilteringTable->num_rules = (uint8_t)IPACM_Iface::ipacmcfg->ipa_num_private_subnet;

		/* Make LAN-traffic always go A5, use default IPA-RT table */
		if (false == m_routing.GetRoutingTable(&IPACM_Iface::ipacmcfg->rt_tbl_default_v4))
		{
			IPACMERR("LAN m_routing.GetRoutingTable(&IPACM_Iface::ipacmcfg->rt_tbl_default_v4=0x%p) Failed.\n", &IPACM_Iface::ipacmcfg->rt_tbl_default_v4);
			free(m_pFilteringTable);
			return IPACM_FAILURE;
		}

		for (i = 0; i < (IPACM_Iface::ipacmcfg->ipa_num_private_subnet); i++)
		{
			memset(&flt_rule_entry, 0, sizeof(struct ipa_flt_rule_add));
			flt_rule_entry.at_rear = true;
			flt_rule_entry.rule.retain_hdr = 1;
			flt_rule_entry.flt_rule_hdl = -1;
			flt_rule_entry.status = -1;
			flt_rule_entry.rule.action = IPA_PASS_TO_ROUTING;
			if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
				flt_rule_entry.rule.hashable = true;
                        /* Support private subnet feature including guest-AP can't talk to primary AP etc */
			flt_rule_entry.rule.rt_tbl_hdl = IPACM_Iface::ipacmcfg->rt_tbl_default_v4.hdl;
			IPACMDBG_H(" private filter rule use table: %s\n",IPACM_Iface::ipacmcfg->rt_tbl_default_v4.name);

			memcpy(&flt_rule_entry.rule.attrib,
						 &rx_prop->rx[0].attrib,
						 sizeof(flt_rule_entry.rule.attrib));
			flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_DST_ADDR;
			flt_rule_entry.rule.attrib.u.v4.dst_addr_mask = IPACM_Iface::ipacmcfg->private_subnet_table[i].subnet_mask;
			flt_rule_entry.rule.attrib.u.v4.dst_addr = IPACM_Iface::ipacmcfg->private_subnet_table[i].subnet_addr;
			memcpy(&(m_pFilteringTable->rules[i]), &flt_rule_entry, sizeof(struct ipa_flt_rule_add));
			IPACMDBG_H("Loop %d  5\n", i);
		}

#ifdef IPA_IOCTL_SET_FNR_COUNTER_INFO
		/* use index hw-counter */
		if(ipa_if_cate == WLAN_IF && IPACM_Iface::ipacmcfg->hw_fnr_stats_support)
		{
			IPACMDBG_H("hw-index-enable %d, counter %d\n", IPACM_Iface::ipacmcfg->hw_fnr_stats_support, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
			result = m_filtering.AddFilteringRule_hw_index(m_pFilteringTable, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
		} else {
			result = m_filtering.AddFilteringRule(m_pFilteringTable);
		}
#else
		result = m_filtering.AddFilteringRule(m_pFilteringTable);
#endif

		if (result == false)
		{
			IPACMERR("Error Adding RuleTable(0) to Filtering, aborting...\n");
			free(m_pFilteringTable);
			return IPACM_FAILURE;
		}
		IPACM_Iface::ipacmcfg->increaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v4, IPACM_Iface::ipacmcfg->ipa_num_private_subnet);

		/* copy filter rule hdls */
		for (i = 0; i < IPACM_Iface::ipacmcfg->ipa_num_private_subnet; i++)
		{
			private_fl_rule_hdl[i] = m_pFilteringTable->rules[i].flt_rule_hdl;
		}
		free(m_pFilteringTable);
	}
	else
	{
		IPACMDBG_H("No private subnet rules for ipv6 iface %s\n", dev_name);
	}
	return IPACM_SUCCESS;
}


/* for STA mode wan up:  configure filter rule for wan_up event*/
int IPACM_Lan::handle_wan_up(ipa_ip_type ip_type)
{
	struct ipa_flt_rule_add flt_rule_entry;
	int len = 0;
	ipa_ioc_add_flt_rule *m_pFilteringTable;
	bool result;

	IPACMDBG_H("set WAN interface as default filter rule\n");

	if (rx_prop == NULL)
	{
		IPACMDBG_H("No rx properties registered for iface %s\n", dev_name);
		return IPACM_SUCCESS;
	}

	if(ip_type == IPA_IP_v4)
	{
		/* add MTU rules for ipv4 */
		handle_private_subnet_android(IPA_IP_v4);

		/* Update ipv6 MTU here if WAN_v6 is up and filter rules were installed */
		if (IPACM_Wan::isWanUP_V6(ipa_if_num))
		{
			if (ipv6_prefix_flt_rule_hdl[0] && ipv6_prefix_flt_rule_hdl[1] ) {
				delete_ipv6_prefix_flt_rule();
				install_ipv6_prefix_flt_rule(IPACM_Wan::backhaul_ipv6_prefix);
			}
		}

		if(sta_ul_v4_set == true)
		{
			IPACMDBG_H("Filetring rule for IPV4 of STA mode is already configured, sta_ul_v4_set: %d\n",sta_ul_v4_set);
			return IPACM_FAILURE;
		}
		len = sizeof(struct ipa_ioc_add_flt_rule) + (1 * sizeof(struct ipa_flt_rule_add));
		m_pFilteringTable = (struct ipa_ioc_add_flt_rule *)calloc(1, len);
		if (m_pFilteringTable == NULL)
		{
			PERROR("Error Locate ipa_flt_rule_add memory...\n");
			return IPACM_FAILURE;
		}

		m_pFilteringTable->commit = 1;
		m_pFilteringTable->ep = rx_prop->rx[0].src_pipe;
		m_pFilteringTable->global = false;
		m_pFilteringTable->ip = IPA_IP_v4;
		m_pFilteringTable->num_rules = (uint8_t)1;

		IPACMDBG_H("Retrieving routing hanle for table: %s\n",
						 IPACM_Iface::ipacmcfg->rt_tbl_wan_v4.name);
		if (false == m_routing.GetRoutingTable(&IPACM_Iface::ipacmcfg->rt_tbl_wan_v4))
		{
			IPACMERR("m_routing.GetRoutingTable(&IPACM_Iface::ipacmcfg->rt_tbl_wan_v4=0x%p) Failed.\n",
							 &IPACM_Iface::ipacmcfg->rt_tbl_wan_v4);
			free(m_pFilteringTable);
			return IPACM_FAILURE;
		}
		IPACMDBG_H("Routing hanle for table: %d\n", IPACM_Iface::ipacmcfg->rt_tbl_wan_v4.hdl);


		memset(&flt_rule_entry, 0, sizeof(struct ipa_flt_rule_add)); // Zero All Fields
		flt_rule_entry.at_rear = true;
		flt_rule_entry.flt_rule_hdl = -1;
		flt_rule_entry.status = -1;
		if(IPACM_Wan::isWan_Bridge_Mode())
		{
			flt_rule_entry.rule.action = IPA_PASS_TO_ROUTING;
		}
		else
		{
			flt_rule_entry.rule.action = IPA_PASS_TO_SRC_NAT; //IPA_PASS_TO_ROUTING
		}
		if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
			flt_rule_entry.rule.hashable = true;
		flt_rule_entry.rule.rt_tbl_hdl = IPACM_Iface::ipacmcfg->rt_tbl_wan_v4.hdl;

		memcpy(&flt_rule_entry.rule.attrib,
					 &rx_prop->rx[0].attrib,
					 sizeof(flt_rule_entry.rule.attrib));

		flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_DST_ADDR;
		flt_rule_entry.rule.attrib.u.v4.dst_addr_mask = 0x0;
		flt_rule_entry.rule.attrib.u.v4.dst_addr = 0x0;

/* only offload UL traffic of certain clients */
#ifdef FEATURE_IPACM_HAL
		flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_SRC_ADDR;
		flt_rule_entry.rule.attrib.u.v4.src_addr_mask = prefix[IPA_IP_v4].v4Mask;
		flt_rule_entry.rule.attrib.u.v4.src_addr = prefix[IPA_IP_v4].v4Addr;
#endif
		memcpy(&m_pFilteringTable->rules[0], &flt_rule_entry, sizeof(flt_rule_entry));

#ifdef IPA_IOCTL_SET_FNR_COUNTER_INFO
		/* use index hw-counter */
		if(ipa_if_cate == WLAN_IF && IPACM_Iface::ipacmcfg->hw_fnr_stats_support)
		{
			IPACMDBG_H("hw-index-enable %d, counter %d\n", IPACM_Iface::ipacmcfg->hw_fnr_stats_support, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
			result = m_filtering.AddFilteringRule_hw_index(m_pFilteringTable, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
		} else {
			result = m_filtering.AddFilteringRule(m_pFilteringTable);
		}
#else
		result = m_filtering.AddFilteringRule(m_pFilteringTable);
#endif
		if (result == false)
		{
			IPACMERR("Error Adding RuleTable(0) to Filtering, aborting...\n");
			free(m_pFilteringTable);
			return IPACM_FAILURE;
		}
		else
		{
			IPACM_Iface::ipacmcfg->increaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v4, 1);
			IPACMDBG_H("flt rule hdl0=0x%x, status=0x%x\n",
							 m_pFilteringTable->rules[0].flt_rule_hdl,
							 m_pFilteringTable->rules[0].status);
		}

		sta_ul_v4_set = true;
		/* copy filter hdls  */
		lan_wan_fl_rule_hdl[0] = m_pFilteringTable->rules[0].flt_rule_hdl;
		free(m_pFilteringTable);
	}
	else if(ip_type == IPA_IP_v6)
	{
		if(sta_ul_v6_set == true)
		{
			IPACMDBG_H("Filetring rule for IPV6 of STA mode is already configured, sta_ul_v6_set: %d\n",sta_ul_v6_set);
			return IPACM_FAILURE;
		}
		/* add default v6 filter rule */
		m_pFilteringTable = (struct ipa_ioc_add_flt_rule *)
			 calloc(1, sizeof(struct ipa_ioc_add_flt_rule) +
					1 * sizeof(struct ipa_flt_rule_add));

		if (!m_pFilteringTable)
		{
			PERROR("Error Locate ipa_flt_rule_add memory...\n");
			return IPACM_FAILURE;
		}

		m_pFilteringTable->commit = 1;
		m_pFilteringTable->ep = rx_prop->rx[0].src_pipe;
		m_pFilteringTable->global = false;
		m_pFilteringTable->ip = IPA_IP_v6;
		m_pFilteringTable->num_rules = (uint8_t)1;

		if (false == m_routing.GetRoutingTable(&IPACM_Iface::ipacmcfg->rt_tbl_v6))
		{
			IPACMERR("m_routing.GetRoutingTable(&IPACM_Iface::ipacmcfg->rt_tbl_v6=0x%p) Failed.\n", &IPACM_Iface::ipacmcfg->rt_tbl_v6);
			free(m_pFilteringTable);
			return IPACM_FAILURE;
		}

		memset(&flt_rule_entry, 0, sizeof(struct ipa_flt_rule_add));

		flt_rule_entry.at_rear = true;
		flt_rule_entry.flt_rule_hdl = -1;
		flt_rule_entry.status = -1;
		flt_rule_entry.rule.action = IPA_PASS_TO_ROUTING;
		if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
			flt_rule_entry.rule.hashable = true;
		flt_rule_entry.rule.rt_tbl_hdl = IPACM_Iface::ipacmcfg->rt_tbl_v6.hdl;

		memcpy(&flt_rule_entry.rule.attrib,
					 &rx_prop->rx[0].attrib,
					 sizeof(flt_rule_entry.rule.attrib));

		flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_DST_ADDR;
		flt_rule_entry.rule.attrib.u.v6.dst_addr_mask[0] = 0x00000000;
		flt_rule_entry.rule.attrib.u.v6.dst_addr_mask[1] = 0x00000000;
		flt_rule_entry.rule.attrib.u.v6.dst_addr_mask[2] = 0x00000000;
		flt_rule_entry.rule.attrib.u.v6.dst_addr_mask[3] = 0x00000000;
		flt_rule_entry.rule.attrib.u.v6.dst_addr[0] = 0X00000000;
		flt_rule_entry.rule.attrib.u.v6.dst_addr[1] = 0x00000000;
		flt_rule_entry.rule.attrib.u.v6.dst_addr[2] = 0x00000000;
		flt_rule_entry.rule.attrib.u.v6.dst_addr[3] = 0X00000000;

/* only offload UL traffic of certain clients */
#ifdef FEATURE_IPACM_HAL
		flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_SRC_ADDR;
		flt_rule_entry.rule.attrib.u.v6.src_addr_mask[0] = prefix[IPA_IP_v6].v6Mask[0];
		flt_rule_entry.rule.attrib.u.v6.src_addr_mask[1] = prefix[IPA_IP_v6].v6Mask[1];
		flt_rule_entry.rule.attrib.u.v6.src_addr_mask[2] = prefix[IPA_IP_v6].v6Mask[2];
		flt_rule_entry.rule.attrib.u.v6.src_addr_mask[3] = prefix[IPA_IP_v6].v6Mask[3];
		flt_rule_entry.rule.attrib.u.v6.src_addr[0] = prefix[IPA_IP_v6].v6Addr[0];
		flt_rule_entry.rule.attrib.u.v6.src_addr[1] = prefix[IPA_IP_v6].v6Addr[1];
		flt_rule_entry.rule.attrib.u.v6.src_addr[2] = prefix[IPA_IP_v6].v6Addr[2];
		flt_rule_entry.rule.attrib.u.v6.src_addr[3] = prefix[IPA_IP_v6].v6Addr[3];

#endif
		memcpy(&(m_pFilteringTable->rules[0]), &flt_rule_entry, sizeof(struct ipa_flt_rule_add));

#ifdef IPA_IOCTL_SET_FNR_COUNTER_INFO
		/* use index hw-counter */
		if(ipa_if_cate == WLAN_IF && IPACM_Iface::ipacmcfg->hw_fnr_stats_support)
		{
			IPACMDBG_H("hw-index-enable %d, counter %d\n", IPACM_Iface::ipacmcfg->hw_fnr_stats_support, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
			result = m_filtering.AddFilteringRule_hw_index(m_pFilteringTable, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
		} else {
			result = m_filtering.AddFilteringRule(m_pFilteringTable);
		}
#else
		result = m_filtering.AddFilteringRule(m_pFilteringTable);
#endif

		if (result == false)
		{
			IPACMERR("Error Adding Filtering rule, aborting...\n");
			free(m_pFilteringTable);
			return IPACM_FAILURE;
		}
		else
		{
			IPACM_Iface::ipacmcfg->increaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v6, 1);
			IPACMDBG_H("flt rule hdl0=0x%x, status=0x%x\n", m_pFilteringTable->rules[0].flt_rule_hdl, m_pFilteringTable->rules[0].status);
		}

		sta_ul_v6_set = true;
		/* copy filter hdls */
		dft_v6fl_rule_hdl[IPV6_DEFAULT_FILTERTING_RULES] = m_pFilteringTable->rules[0].flt_rule_hdl;
		free(m_pFilteringTable);
	}

	return IPACM_SUCCESS;
}

int IPACM_Lan::handle_wan_up_ex(ipacm_ext_prop *ext_prop, ipa_ip_type iptype, uint8_t xlat_mux_id)
{
	int fd, ret = IPACM_SUCCESS;
	uint32_t cnt;
	IPACM_Config* ipacm_config = IPACM_Iface::ipacmcfg;
	struct ipa_ioc_write_qmapid mux;

	/* for newer versions metadata is overridden by NAT metadata replacement for IPAv4 and up */
	/* this is still needed for IPv6 traffic in case qmapid need to be used */
	if(rx_prop != NULL)
	{
		/* give mux ID of the default PDN to IPA-driver for WLAN/LAN pkts */
		fd = open(IPA_DEVICE_NAME, O_RDWR);
		if (0 == fd)
		{
			IPACMDBG_H("Failed opening %s.\n", IPA_DEVICE_NAME);
			return IPACM_FAILURE;
		}

		mux.qmap_id = ipacm_config->GetQmapId();
		IPACMDBG("get mux id %d for rx-endpoint\n", mux.qmap_id);
		for(cnt=0; cnt<rx_prop->num_rx_props; cnt++)
		{
			mux.client = rx_prop->rx[cnt].src_pipe;
			ret = ioctl(fd, IPA_IOC_WRITE_QMAPID, &mux);
			if (ret)
			{
				IPACMERR("Failed to write mux id %d\n", mux.qmap_id);
				close(fd);
				return IPACM_FAILURE;
			}
		}
		close(fd);
	}

	/* check only add static UL filter rule once */
	if (iptype ==IPA_IP_v6 && modem_ul_v6_set == false)
	{
		IPACMDBG_H("IPA_IP_v6 num_dft_rt_v6 %d xlat_mux_id: %d modem_ul_v6_set: %d\n", num_dft_rt_v6, xlat_mux_id, modem_ul_v6_set);
		ret = handle_uplink_filter_rule(ext_prop, iptype, xlat_mux_id);
		modem_ul_v6_set = true;
	} else if (iptype ==IPA_IP_v4 && modem_ul_v4_set == false) {
		/* add MTU rules for ipv4 */
		handle_private_subnet_android(IPA_IP_v4);

		/* Update ipv6 MTU here if WAN_v6 is up and filter rules were installed */
		if (IPACM_Wan::isWanUP_V6(ipa_if_num))
		{
			if (ipv6_prefix_flt_rule_hdl[0] && ipv6_prefix_flt_rule_hdl[1] ) {
				delete_ipv6_prefix_flt_rule();
				install_ipv6_prefix_flt_rule(IPACM_Wan::backhaul_ipv6_prefix);
			}
		}

		IPACMDBG_H("check getXlat_Mux_Id:%d\n", IPACM_Wan::getXlat_Mux_Id());
		IPACMDBG_H("IPA_IP_v4 xlat_mux_id: %d, modem_ul_v4_set %d\n", xlat_mux_id, modem_ul_v4_set);
		ret = handle_uplink_filter_rule(ext_prop, iptype, xlat_mux_id);
		modem_ul_v4_set = true;
	} else {
		IPACMDBG_H("ip-type: %d modem_ul_v4_set: %d, modem_ul_v6_set %d\n", iptype, modem_ul_v4_set, modem_ul_v6_set);
	}
	return ret;
}

/* handle ETH client initial, construct full headers (tx property) */
int IPACM_Lan::handle_eth_hdr_init(uint8_t *mac_addr)
{

#define ETH_IFACE_INDEX_LEN 2

	int res = IPACM_SUCCESS, len = 0;
	char index[ETH_IFACE_INDEX_LEN];
	struct ipa_ioc_copy_hdr sCopyHeader;
	struct ipa_ioc_add_hdr *pHeaderDescriptor = NULL;
	uint32_t cnt;
	int clnt_indx;

	clnt_indx = get_eth_client_index(mac_addr);

	if (clnt_indx != IPACM_INVALID_INDEX)
	{
		IPACMERR("eth client is found/attached already with index %d \n", clnt_indx);
		return IPACM_FAILURE;
	}

	/* add header to IPA */
	if (num_eth_client >= IPA_MAX_NUM_ETH_CLIENTS)
	{
		IPACMERR("Reached maximum number(%d) of eth clients\n", IPA_MAX_NUM_ETH_CLIENTS);
		return IPACM_FAILURE;
	}

	IPACMDBG_H("ETH client number: %d\n", num_eth_client);

	memcpy(get_client_memptr(eth_client, num_eth_client)->mac,
				 mac_addr,
				 sizeof(get_client_memptr(eth_client, num_eth_client)->mac));


	IPACMDBG_H("Received Client MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
					 mac_addr[0], mac_addr[1], mac_addr[2],
					 mac_addr[3], mac_addr[4], mac_addr[5]);

	IPACMDBG_H("stored MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
					 get_client_memptr(eth_client, num_eth_client)->mac[0],
					 get_client_memptr(eth_client, num_eth_client)->mac[1],
					 get_client_memptr(eth_client, num_eth_client)->mac[2],
					 get_client_memptr(eth_client, num_eth_client)->mac[3],
					 get_client_memptr(eth_client, num_eth_client)->mac[4],
					 get_client_memptr(eth_client, num_eth_client)->mac[5]);

	/* add header to IPA */
	if(tx_prop != NULL)
	{
		len = sizeof(struct ipa_ioc_add_hdr) + (1 * sizeof(struct ipa_hdr_add));
		pHeaderDescriptor = (struct ipa_ioc_add_hdr *)calloc(1, len);
		if (pHeaderDescriptor == NULL)
		{
			IPACMERR("calloc failed to allocate pHeaderDescriptor\n");
			return IPACM_FAILURE;
		}

		/* copy partial header for v4*/
		for (cnt=0; cnt<tx_prop->num_tx_props; cnt++)
		{
				 if(tx_prop->tx[cnt].ip==IPA_IP_v4)
				 {
								IPACMDBG_H("Got partial v4-header name from %d tx props\n", cnt);
								memset(&sCopyHeader, 0, sizeof(sCopyHeader));
								memcpy(sCopyHeader.name,
											 tx_prop->tx[cnt].hdr_name,
											 sizeof(sCopyHeader.name));

								IPACMDBG_H("header name: %s in tx:%d\n", sCopyHeader.name,cnt);
								if (m_header.CopyHeader(&sCopyHeader) == false)
								{
									PERROR("ioctl copy header failed");
									res = IPACM_FAILURE;
									goto fail;
								}

								IPACMDBG_H("header length: %d, paritial: %d\n", sCopyHeader.hdr_len, sCopyHeader.is_partial);
								IPACMDBG_H("header eth2_ofst_valid: %d, eth2_ofst: %d\n", sCopyHeader.is_eth2_ofst_valid, sCopyHeader.eth2_ofst);
								if (sCopyHeader.hdr_len > IPA_HDR_MAX_SIZE)
								{
									IPACMERR("header oversize\n");
									res = IPACM_FAILURE;
									goto fail;
								}
								else
								{
									memcpy(pHeaderDescriptor->hdr[0].hdr,
												 sCopyHeader.hdr,
												 sCopyHeader.hdr_len);
								}

								/* copy client mac_addr to partial header */
								if (sCopyHeader.is_eth2_ofst_valid)
								{
									memcpy(&pHeaderDescriptor->hdr[0].hdr[sCopyHeader.eth2_ofst],
											 mac_addr,
											 IPA_MAC_ADDR_SIZE);
								}
								/* replace src mac to bridge mac_addr if any  */
								if (IPACM_Iface::ipacmcfg->ipa_bridge_enable)
								{
									memcpy(&pHeaderDescriptor->hdr[0].hdr[sCopyHeader.eth2_ofst+IPA_MAC_ADDR_SIZE],
											IPACM_Iface::ipacmcfg->bridge_mac,
											IPA_MAC_ADDR_SIZE);
									IPACMDBG_H("device is in bridge mode \n");
								}

								pHeaderDescriptor->commit = true;
								pHeaderDescriptor->num_hdrs = 1;

								memset(pHeaderDescriptor->hdr[0].name, 0,
											 sizeof(pHeaderDescriptor->hdr[0].name));

								snprintf(index,sizeof(index), "%d", ipa_if_num);
								strlcpy(pHeaderDescriptor->hdr[0].name, index, sizeof(pHeaderDescriptor->hdr[0].name));
								pHeaderDescriptor->hdr[0].name[IPA_RESOURCE_NAME_MAX-1] = '\0';
								if (strlcat(pHeaderDescriptor->hdr[0].name, IPA_ETH_HDR_NAME_v4, sizeof(pHeaderDescriptor->hdr[0].name)) > IPA_RESOURCE_NAME_MAX)
								{
									IPACMERR(" header name construction failed exceed length (%zu)\n", strlen(pHeaderDescriptor->hdr[0].name));
									res = IPACM_FAILURE;
									goto fail;
								}

								snprintf(index,sizeof(index), "%d", header_name_count);
								if (strlcat(pHeaderDescriptor->hdr[0].name, index, sizeof(pHeaderDescriptor->hdr[0].name)) > IPA_RESOURCE_NAME_MAX)
								{
									IPACMERR(" header name construction failed exceed length (%zu)\n", strlen(pHeaderDescriptor->hdr[0].name));
									res = IPACM_FAILURE;
									goto fail;
								}

								pHeaderDescriptor->hdr[0].hdr_len = sCopyHeader.hdr_len;
								pHeaderDescriptor->hdr[0].hdr_hdl = -1;
								pHeaderDescriptor->hdr[0].is_partial = 0;
								pHeaderDescriptor->hdr[0].status = -1;

					 if (m_header.AddHeader(pHeaderDescriptor) == false ||
							pHeaderDescriptor->hdr[0].status != 0)
					 {
						IPACMERR("ioctl IPA_IOC_ADD_HDR failed: %d\n", pHeaderDescriptor->hdr[0].status);
						res = IPACM_FAILURE;
						goto fail;
					 }

					get_client_memptr(eth_client, num_eth_client)->hdr_hdl_v4 = pHeaderDescriptor->hdr[0].hdr_hdl;
					IPACMDBG_H("eth-client(%d) v4 full header name:%s header handle:(0x%x)\n",
												 num_eth_client,
												 pHeaderDescriptor->hdr[0].name,
												 get_client_memptr(eth_client, num_eth_client)->hdr_hdl_v4);
									get_client_memptr(eth_client, num_eth_client)->ipv4_header_set=true;

					break;
				 }
		}


		/* copy partial header for v6*/
		for (cnt=0; cnt<tx_prop->num_tx_props; cnt++)
		{
			if(tx_prop->tx[cnt].ip==IPA_IP_v6)
			{

				IPACMDBG_H("Got partial v6-header name from %d tx props\n", cnt);
				memset(&sCopyHeader, 0, sizeof(sCopyHeader));
				memcpy(sCopyHeader.name,
						tx_prop->tx[cnt].hdr_name,
							sizeof(sCopyHeader.name));

				IPACMDBG_H("header name: %s in tx:%d\n", sCopyHeader.name,cnt);
				if (m_header.CopyHeader(&sCopyHeader) == false)
				{
					PERROR("ioctl copy header failed");
					res = IPACM_FAILURE;
					goto fail;
				}

				IPACMDBG_H("header length: %d, paritial: %d\n", sCopyHeader.hdr_len, sCopyHeader.is_partial);
				IPACMDBG_H("header eth2_ofst_valid: %d, eth2_ofst: %d\n", sCopyHeader.is_eth2_ofst_valid, sCopyHeader.eth2_ofst);
				if (sCopyHeader.hdr_len > IPA_HDR_MAX_SIZE)
				{
					IPACMERR("header oversize\n");
					res = IPACM_FAILURE;
					goto fail;
				}
				else
				{
					memcpy(pHeaderDescriptor->hdr[0].hdr,
							sCopyHeader.hdr,
								sCopyHeader.hdr_len);
				}

				/* copy client mac_addr to partial header */
				if (sCopyHeader.is_eth2_ofst_valid)
				{
					memcpy(&pHeaderDescriptor->hdr[0].hdr[sCopyHeader.eth2_ofst],
						mac_addr,
						IPA_MAC_ADDR_SIZE);
				}
				/* replace src mac to bridge mac_addr if any  */
				if (IPACM_Iface::ipacmcfg->ipa_bridge_enable)
				{
					memcpy(&pHeaderDescriptor->hdr[0].hdr[sCopyHeader.eth2_ofst+IPA_MAC_ADDR_SIZE],
							IPACM_Iface::ipacmcfg->bridge_mac,
							IPA_MAC_ADDR_SIZE);
					IPACMDBG_H("device is in bridge mode \n");
				}

				pHeaderDescriptor->commit = true;
				pHeaderDescriptor->num_hdrs = 1;

				memset(pHeaderDescriptor->hdr[0].name, 0,
					 sizeof(pHeaderDescriptor->hdr[0].name));

				snprintf(index,sizeof(index), "%d", ipa_if_num);
				strlcpy(pHeaderDescriptor->hdr[0].name, index, sizeof(pHeaderDescriptor->hdr[0].name));
				pHeaderDescriptor->hdr[0].name[IPA_RESOURCE_NAME_MAX-1] = '\0';
				if (strlcat(pHeaderDescriptor->hdr[0].name, IPA_ETH_HDR_NAME_v6, sizeof(pHeaderDescriptor->hdr[0].name)) > IPA_RESOURCE_NAME_MAX)
				{
					IPACMERR(" header name construction failed exceed length (%zu)\n", strlen(pHeaderDescriptor->hdr[0].name));
					res = IPACM_FAILURE;
					goto fail;
				}
				snprintf(index,sizeof(index), "%d", header_name_count);
				if (strlcat(pHeaderDescriptor->hdr[0].name, index, sizeof(pHeaderDescriptor->hdr[0].name)) > IPA_RESOURCE_NAME_MAX)
				{
					IPACMERR(" header name construction failed exceed length (%zu)\n", strlen(pHeaderDescriptor->hdr[0].name));
					res = IPACM_FAILURE;
					goto fail;
				}

				pHeaderDescriptor->hdr[0].hdr_len = sCopyHeader.hdr_len;
				pHeaderDescriptor->hdr[0].hdr_hdl = -1;
				pHeaderDescriptor->hdr[0].is_partial = 0;
				pHeaderDescriptor->hdr[0].status = -1;

				if (m_header.AddHeader(pHeaderDescriptor) == false ||
						pHeaderDescriptor->hdr[0].status != 0)
				{
					IPACMERR("ioctl IPA_IOC_ADD_HDR failed: %d\n", pHeaderDescriptor->hdr[0].status);
					res = IPACM_FAILURE;
					goto fail;
				}

				get_client_memptr(eth_client, num_eth_client)->hdr_hdl_v6 = pHeaderDescriptor->hdr[0].hdr_hdl;
				IPACMDBG_H("eth-client(%d) v6 full header name:%s header handle:(0x%x)\n",
						 num_eth_client,
						 pHeaderDescriptor->hdr[0].name,
									 get_client_memptr(eth_client, num_eth_client)->hdr_hdl_v6);

									get_client_memptr(eth_client, num_eth_client)->ipv6_header_set=true;

				break;

			}
		}
		/* initialize wifi client*/
		get_client_memptr(eth_client, num_eth_client)->route_rule_set_v4 = false;
		get_client_memptr(eth_client, num_eth_client)->route_rule_set_v6 = 0;
		get_client_memptr(eth_client, num_eth_client)->ipv4_set = false;
		get_client_memptr(eth_client, num_eth_client)->ipv6_set = 0;
		num_eth_client++;
		header_name_count++; //keep increasing header_name_count
		res = IPACM_SUCCESS;
		IPACMDBG_H("eth client number: %d\n", num_eth_client);
	}
	else
	{
		return res;
	}
fail:
	free(pHeaderDescriptor);
	return res;
}

/*handle eth client */
int IPACM_Lan::handle_eth_client_ipaddr(ipacm_event_data_all *data)
{
	int clnt_indx;
	int v6_num;
	uint32_t ipv6_link_local_prefix = 0xFE800000;
	uint32_t ipv6_link_local_prefix_mask = 0xFFC00000;

	IPACMDBG_H("number of eth clients: %d\n", num_eth_client);
	IPACMDBG_H("event MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
					 data->mac_addr[0],
					 data->mac_addr[1],
					 data->mac_addr[2],
					 data->mac_addr[3],
					 data->mac_addr[4],
					 data->mac_addr[5]);

	clnt_indx = get_eth_client_index(data->mac_addr);

		if (clnt_indx == IPACM_INVALID_INDEX)
		{
			IPACMERR("eth client not found/attached \n");
			return IPACM_FAILURE;
		}

	IPACMDBG_H("Ip-type received %d\n", data->iptype);
	if (data->iptype == IPA_IP_v4)
	{
		IPACMDBG_H("ipv4 address: 0x%x\n", data->ipv4_addr);
		if (data->ipv4_addr != 0) /* not 0.0.0.0 */
		{
			if (get_client_memptr(eth_client, clnt_indx)->ipv4_set == false)
			{
				get_client_memptr(eth_client, clnt_indx)->v4_addr = data->ipv4_addr;
				get_client_memptr(eth_client, clnt_indx)->ipv4_set = true;
			}
			else
			{
			   /* check if client got new IPv4 address*/
			   if(data->ipv4_addr == get_client_memptr(eth_client, clnt_indx)->v4_addr)
			   {
				IPACMDBG_H("Already setup ipv4 addr for client:%d, ipv4 address didn't change\n", clnt_indx);
				 return IPACM_FAILURE;
			   }
			   else
			   {
					IPACMDBG_H("ipv4 addr for client:%d is changed \n", clnt_indx);
					/* delete NAT rules first */
					CtList->HandleNeighIpAddrDelEvt(get_client_memptr(eth_client, clnt_indx)->v4_addr);
					delete_eth_rtrules(clnt_indx,IPA_IP_v4);
					get_client_memptr(eth_client, clnt_indx)->route_rule_set_v4 = false;
					get_client_memptr(eth_client, clnt_indx)->v4_addr = data->ipv4_addr;
				}
			}
		}
		else
		{
		    IPACMDBG_H("Invalid client IPv4 address \n");
		    return IPACM_FAILURE;
		}
	}
	else
	{
		if ((data->ipv6_addr[0] != 0) || (data->ipv6_addr[1] != 0) ||
				(data->ipv6_addr[2] != 0) || (data->ipv6_addr[3] != 0)) /* check if all 0 not valid ipv6 address */
		{
			IPACMDBG_H("ipv6 address: 0x%x:%x:%x:%x\n", data->ipv6_addr[0], data->ipv6_addr[1], data->ipv6_addr[2], data->ipv6_addr[3]);
			if( (data->ipv6_addr[0] & ipv6_link_local_prefix_mask) != (ipv6_link_local_prefix & ipv6_link_local_prefix_mask) &&
				memcmp(ipv6_prefix, data->ipv6_addr, sizeof(ipv6_prefix)) != 0)
			{
				IPACMDBG_H("This IPv6 address is not global IPv6 address with correct prefix, ignore.\n");
				return IPACM_FAILURE;
			}

            if(get_client_memptr(eth_client, clnt_indx)->ipv6_set < IPV6_NUM_ADDR)
			{

		       for(v6_num=0;v6_num < get_client_memptr(eth_client, clnt_indx)->ipv6_set;v6_num++)
				{
					if( data->ipv6_addr[0] == get_client_memptr(eth_client, clnt_indx)->v6_addr[v6_num][0] &&
			           data->ipv6_addr[1] == get_client_memptr(eth_client, clnt_indx)->v6_addr[v6_num][1] &&
			  	        data->ipv6_addr[2]== get_client_memptr(eth_client, clnt_indx)->v6_addr[v6_num][2] &&
			  	         data->ipv6_addr[3] == get_client_memptr(eth_client, clnt_indx)->v6_addr[v6_num][3])
					{
						IPACMDBG_H("Already see this ipv6 addr at position: %d for client:%d\n", v6_num, clnt_indx);
						return IPACM_FAILURE; /* not setup the RT rules*/
					}
				}

		       /* not see this ipv6 before for wifi client*/
			   get_client_memptr(eth_client, clnt_indx)->v6_addr[get_client_memptr(eth_client, clnt_indx)->ipv6_set][0] = data->ipv6_addr[0];
			   get_client_memptr(eth_client, clnt_indx)->v6_addr[get_client_memptr(eth_client, clnt_indx)->ipv6_set][1] = data->ipv6_addr[1];
			   get_client_memptr(eth_client, clnt_indx)->v6_addr[get_client_memptr(eth_client, clnt_indx)->ipv6_set][2] = data->ipv6_addr[2];
			   get_client_memptr(eth_client, clnt_indx)->v6_addr[get_client_memptr(eth_client, clnt_indx)->ipv6_set][3] = data->ipv6_addr[3];
			   get_client_memptr(eth_client, clnt_indx)->ipv6_set++;
		    }
		    else
		    {
		        IPACMDBG_H("Already got %d ipv6 addr for client:%d\n", IPV6_NUM_ADDR, clnt_indx);
				return IPACM_FAILURE; /* not setup the RT rules*/
		    }
		}
		else
		{
			IPACMDBG_H("Invalid IPV6 address\n");
			return IPACM_FAILURE;
		}
	}

	return IPACM_SUCCESS;
}

/*handle eth client routing rule*/
int IPACM_Lan::handle_eth_client_route_rule(uint8_t *mac_addr, ipa_ip_type iptype)
{
	struct ipa_ioc_add_rt_rule *rt_rule;
	struct ipa_rt_rule_add *rt_rule_entry;
	uint32_t tx_index;
	int eth_index,v6_num;
	const int NUM = 1;

	if(tx_prop == NULL)
	{
		IPACMDBG_H("No rx properties registered for iface %s\n", dev_name);
		return IPACM_SUCCESS;
	}

	IPACMDBG_H("Received mac_addr MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
					 mac_addr[0], mac_addr[1], mac_addr[2],
					 mac_addr[3], mac_addr[4], mac_addr[5]);

	eth_index = get_eth_client_index(mac_addr);
	if (eth_index == IPACM_INVALID_INDEX)
	{
		IPACMDBG_H("eth client not found/attached \n");
		return IPACM_SUCCESS;
	}

	if (iptype==IPA_IP_v4) {
		IPACMDBG_H("eth client index: %d, ip-type: %d, ipv4_set:%d, ipv4_rule_set:%d \n", eth_index, iptype,
					 get_client_memptr(eth_client, eth_index)->ipv4_set,
					 get_client_memptr(eth_client, eth_index)->route_rule_set_v4);
	} else {
		IPACMDBG_H("eth client index: %d, ip-type: %d, ipv6_set:%d, ipv6_rule_num:%d \n", eth_index, iptype,
					 get_client_memptr(eth_client, eth_index)->ipv6_set,
					 get_client_memptr(eth_client, eth_index)->route_rule_set_v6);
	}
	/* Add default routing rules if not set yet */
	if ((iptype == IPA_IP_v4
			 && get_client_memptr(eth_client, eth_index)->route_rule_set_v4 == false
			 && get_client_memptr(eth_client, eth_index)->ipv4_set == true)
			|| (iptype == IPA_IP_v6
		            && get_client_memptr(eth_client, eth_index)->route_rule_set_v6 < get_client_memptr(eth_client, eth_index)->ipv6_set
					))
	{
		if(IPACM_Iface::ipacmcfg->GetIPAVer() >= IPA_HW_None && IPACM_Iface::ipacmcfg->GetIPAVer() < IPA_HW_v4_0)
		{
			/* Add corresponding ipa_rm_resource_name of TX-endpoint up before IPV6 RT-rule set */
			IPACMDBG_H("dev %s add producer dependency\n", dev_name);
			if (tx_prop != NULL)
			{
				IPACMDBG_H("depend Got pipe %d rm index : %d \n", tx_prop->tx[0].dst_pipe, IPACM_Iface::ipacmcfg->ipa_client_rm_map_tbl[tx_prop->tx[0].dst_pipe]);
				IPACM_Iface::ipacmcfg->AddRmDepend(IPACM_Iface::ipacmcfg->ipa_client_rm_map_tbl[tx_prop->tx[0].dst_pipe],false);
			}
		}
		rt_rule = (struct ipa_ioc_add_rt_rule *)
			 calloc(1, sizeof(struct ipa_ioc_add_rt_rule) +
						NUM * sizeof(struct ipa_rt_rule_add));

		if (rt_rule == NULL)
		{
			PERROR("Error Locate ipa_ioc_add_rt_rule memory...\n");
			return IPACM_FAILURE;
		}

		rt_rule->commit = 1;
		rt_rule->num_rules = (uint8_t)NUM;
		rt_rule->ip = iptype;

		for (tx_index = 0; tx_index < iface_query->num_tx_props; tx_index++)
		{
			if(iptype != tx_prop->tx[tx_index].ip)
		    {
				IPACMDBG_H("Tx:%d, ip-type: %d conflict ip-type: %d no RT-rule added\n",
						tx_index, tx_prop->tx[tx_index].ip,iptype);
		   	        continue;
		    }

			rt_rule_entry = &rt_rule->rules[0];
			rt_rule_entry->at_rear = 0;

			if (iptype == IPA_IP_v4)
			{
		        IPACMDBG_H("client index(%d):ipv4 address: 0x%x\n", eth_index,
		  		        get_client_memptr(eth_client, eth_index)->v4_addr);

                IPACMDBG_H("client(%d): v4 header handle:(0x%x)\n",
		  				 eth_index,
		  				 get_client_memptr(eth_client, eth_index)->hdr_hdl_v4);
				strlcpy(rt_rule->rt_tbl_name,
								IPACM_Iface::ipacmcfg->rt_tbl_lan_v4.name,
								sizeof(rt_rule->rt_tbl_name));
				rt_rule->rt_tbl_name[IPA_RESOURCE_NAME_MAX-1] = '\0';
			    rt_rule_entry->rule.dst = tx_prop->tx[tx_index].dst_pipe;
			    memcpy(&rt_rule_entry->rule.attrib,
						 &tx_prop->tx[tx_index].attrib,
						 sizeof(rt_rule_entry->rule.attrib));
			    rt_rule_entry->rule.attrib.attrib_mask |= IPA_FLT_DST_ADDR;
		   	    rt_rule_entry->rule.hdr_hdl = get_client_memptr(eth_client, eth_index)->hdr_hdl_v4;
				rt_rule_entry->rule.attrib.u.v4.dst_addr = get_client_memptr(eth_client, eth_index)->v4_addr;
				rt_rule_entry->rule.attrib.u.v4.dst_addr_mask = 0xFFFFFFFF;

				if(IPACM_Iface::ipacmcfg->GetIPAVer() >= IPA_HW_v4_0)
				{
					rt_rule_entry->rule.hashable = true;
				}

				if (false == m_routing.AddRoutingRule(rt_rule))
				{
					IPACMERR("Routing rule addition failed!\n");
					free(rt_rule);
					return IPACM_FAILURE;
				}

			    /* copy ipv4 RT hdl */
		        get_client_memptr(eth_client, eth_index)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v4 =
  	   	        rt_rule->rules[0].rt_rule_hdl;
		        IPACMDBG_H("tx:%d, rt rule hdl=%x ip-type: %d\n", tx_index,
		      	get_client_memptr(eth_client, eth_index)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v4, iptype);
			} else {

		        for(v6_num = get_client_memptr(eth_client, eth_index)->route_rule_set_v6;v6_num < get_client_memptr(eth_client, eth_index)->ipv6_set;v6_num++)
			    {
                    IPACMDBG_H("client(%d): v6 header handle:(0x%x)\n",
		  	    			 eth_index,
		  	    			 get_client_memptr(eth_client, eth_index)->hdr_hdl_v6);

		            /* v6 LAN_RT_TBL */
				strlcpy(rt_rule->rt_tbl_name,
			    					IPACM_Iface::ipacmcfg->rt_tbl_v6.name,
			    					sizeof(rt_rule->rt_tbl_name));
				rt_rule->rt_tbl_name[IPA_RESOURCE_NAME_MAX-1] = '\0';
		            /* Support QCMAP LAN traffic feature, send to A5 */
					rt_rule_entry->rule.dst = IPA_CLIENT_APPS_LAN_CONS;
			        memset(&rt_rule_entry->rule.attrib, 0, sizeof(rt_rule_entry->rule.attrib));
		   	        rt_rule_entry->rule.hdr_hdl = 0;
			        rt_rule_entry->rule.attrib.attrib_mask |= IPA_FLT_DST_ADDR;
		   	        rt_rule_entry->rule.attrib.u.v6.dst_addr[0] = get_client_memptr(eth_client, eth_index)->v6_addr[v6_num][0];
		   	        rt_rule_entry->rule.attrib.u.v6.dst_addr[1] = get_client_memptr(eth_client, eth_index)->v6_addr[v6_num][1];
		   	        rt_rule_entry->rule.attrib.u.v6.dst_addr[2] = get_client_memptr(eth_client, eth_index)->v6_addr[v6_num][2];
		   	        rt_rule_entry->rule.attrib.u.v6.dst_addr[3] = get_client_memptr(eth_client, eth_index)->v6_addr[v6_num][3];
					rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[0] = 0xFFFFFFFF;
					rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[1] = 0xFFFFFFFF;
					rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[2] = 0xFFFFFFFF;
					rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[3] = 0xFFFFFFFF;
					if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
						rt_rule_entry->rule.hashable = true;
			if (false == m_routing.AddRoutingRule(rt_rule))
			{
				IPACMERR("Routing rule addition failed!\n");
				free(rt_rule);
				return IPACM_FAILURE;
			}

		            get_client_memptr(eth_client, eth_index)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6[v6_num] = rt_rule->rules[0].rt_rule_hdl;
		            IPACMDBG_H("tx:%d, rt rule hdl=%x ip-type: %d\n", tx_index,
		            				 get_client_memptr(eth_client, eth_index)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6[v6_num], iptype);

			        /*Copy same rule to v6 WAN RT TBL*/
				strlcpy(rt_rule->rt_tbl_name, IPACM_Iface::ipacmcfg->rt_tbl_wan_v6.name, sizeof(rt_rule->rt_tbl_name));
				rt_rule->rt_tbl_name[IPA_RESOURCE_NAME_MAX-1] = '\0';
				/* Downlink traffic from Wan iface, directly through IPA */
					rt_rule_entry->rule.dst = tx_prop->tx[tx_index].dst_pipe;
			        memcpy(&rt_rule_entry->rule.attrib,
						 &tx_prop->tx[tx_index].attrib,
						 sizeof(rt_rule_entry->rule.attrib));
		   	        rt_rule_entry->rule.hdr_hdl = get_client_memptr(eth_client, eth_index)->hdr_hdl_v6;
			        rt_rule_entry->rule.attrib.attrib_mask |= IPA_FLT_DST_ADDR;
		   	        rt_rule_entry->rule.attrib.u.v6.dst_addr[0] = get_client_memptr(eth_client, eth_index)->v6_addr[v6_num][0];
		   	        rt_rule_entry->rule.attrib.u.v6.dst_addr[1] = get_client_memptr(eth_client, eth_index)->v6_addr[v6_num][1];
		   	        rt_rule_entry->rule.attrib.u.v6.dst_addr[2] = get_client_memptr(eth_client, eth_index)->v6_addr[v6_num][2];
		   	        rt_rule_entry->rule.attrib.u.v6.dst_addr[3] = get_client_memptr(eth_client, eth_index)->v6_addr[v6_num][3];
					rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[0] = 0xFFFFFFFF;
					rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[1] = 0xFFFFFFFF;
					rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[2] = 0xFFFFFFFF;
					rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[3] = 0xFFFFFFFF;
					if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
						rt_rule_entry->rule.hashable = true;
		            if (false == m_routing.AddRoutingRule(rt_rule))
		            {
							IPACMERR("Routing rule addition failed!\n");
							free(rt_rule);
							return IPACM_FAILURE;
		            }

		            get_client_memptr(eth_client, eth_index)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6_wan[v6_num] = rt_rule->rules[0].rt_rule_hdl;
					IPACMDBG_H("tx:%d, rt rule hdl=%x ip-type: %d\n", tx_index,
		            				 get_client_memptr(eth_client, eth_index)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6_wan[v6_num], iptype);

					/* send client-v6 info to pcie modem only with global ipv6 with tx_index = 1 one time*/
					if(is_global_ipv6_addr(get_client_memptr(eth_client, eth_index)->v6_addr[v6_num]) && (IPACM_Wan::backhaul_mode == Q6_MHI_WAN))
					{
						if (add_connection(eth_index, v6_num))
						{
							IPACMERR("PCIE filter rule addition failed! (%d-client) %d v6-entry\n",eth_index, v6_num);
						}
					}
			    }
			}

		} /* end of for loop */

		free(rt_rule);

		if (iptype == IPA_IP_v4)
		{
			get_client_memptr(eth_client, eth_index)->route_rule_set_v4 = true;
		}
		else
		{
			get_client_memptr(eth_client, eth_index)->route_rule_set_v6 = get_client_memptr(eth_client, eth_index)->ipv6_set;
		}
	}
	return IPACM_SUCCESS;
}

/* handle odu client initial, construct full headers (tx property) */
int IPACM_Lan::handle_odu_hdr_init(uint8_t *mac_addr)
{
	int res = IPACM_SUCCESS, len = 0;
	struct ipa_ioc_copy_hdr sCopyHeader;
	struct ipa_ioc_add_hdr *pHeaderDescriptor = NULL;
	uint32_t cnt;

	IPACMDBG("Received Client MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
					 mac_addr[0], mac_addr[1], mac_addr[2],
					 mac_addr[3], mac_addr[4], mac_addr[5]);

	/* add header to IPA */
	if(tx_prop != NULL)
	{
		len = sizeof(struct ipa_ioc_add_hdr) + (1 * sizeof(struct ipa_hdr_add));
		pHeaderDescriptor = (struct ipa_ioc_add_hdr *)calloc(1, len);
		if (pHeaderDescriptor == NULL)
		{
			IPACMERR("calloc failed to allocate pHeaderDescriptor\n");
			return IPACM_FAILURE;
		}

		/* copy partial header for v4*/
		for (cnt=0; cnt<tx_prop->num_tx_props; cnt++)
		{
				 if(tx_prop->tx[cnt].ip==IPA_IP_v4)
				 {
								IPACMDBG("Got partial v4-header name from %d tx props\n", cnt);
								memset(&sCopyHeader, 0, sizeof(sCopyHeader));
								memcpy(sCopyHeader.name,
											tx_prop->tx[cnt].hdr_name,
											 sizeof(sCopyHeader.name));
								IPACMDBG("header name: %s in tx:%d\n", sCopyHeader.name,cnt);
								if (m_header.CopyHeader(&sCopyHeader) == false)
								{
									PERROR("ioctl copy header failed");
									res = IPACM_FAILURE;
									goto fail;
								}
								IPACMDBG("header length: %d, paritial: %d\n", sCopyHeader.hdr_len, sCopyHeader.is_partial);
								if (sCopyHeader.hdr_len > IPA_HDR_MAX_SIZE)
								{
									IPACMERR("header oversize\n");
									res = IPACM_FAILURE;
									goto fail;
								}
								else
								{
									memcpy(pHeaderDescriptor->hdr[0].hdr,
												 sCopyHeader.hdr,
												 sCopyHeader.hdr_len);
								}
								/* copy client mac_addr to partial header */
								if (sCopyHeader.is_eth2_ofst_valid)
								{
									memcpy(&pHeaderDescriptor->hdr[0].hdr[sCopyHeader.eth2_ofst],
											 mac_addr,
											 IPA_MAC_ADDR_SIZE);
								}
								/* replace src mac to bridge mac_addr if any  */
								if (IPACM_Iface::ipacmcfg->ipa_bridge_enable)
								{
									memcpy(&pHeaderDescriptor->hdr[0].hdr[sCopyHeader.eth2_ofst+IPA_MAC_ADDR_SIZE],
											IPACM_Iface::ipacmcfg->bridge_mac,
											IPA_MAC_ADDR_SIZE);
									IPACMDBG_H("device is in bridge mode \n");
								}

								pHeaderDescriptor->commit = true;
								pHeaderDescriptor->num_hdrs = 1;

								memset(pHeaderDescriptor->hdr[0].name, 0,
											 sizeof(pHeaderDescriptor->hdr[0].name));
								strlcpy(pHeaderDescriptor->hdr[0].name, IPA_ODU_HDR_NAME_v4, sizeof(pHeaderDescriptor->hdr[0].name));
								pHeaderDescriptor->hdr[0].hdr_len = sCopyHeader.hdr_len;
								pHeaderDescriptor->hdr[0].hdr_hdl = -1;
								pHeaderDescriptor->hdr[0].is_partial = 0;
								pHeaderDescriptor->hdr[0].status = -1;

					 if (m_header.AddHeader(pHeaderDescriptor) == false ||
							pHeaderDescriptor->hdr[0].status != 0)
					 {
						IPACMERR("ioctl IPA_IOC_ADD_HDR failed: %d\n", pHeaderDescriptor->hdr[0].status);
						res = IPACM_FAILURE;
						goto fail;
					 }

					ODU_hdr_hdl_v4 = pHeaderDescriptor->hdr[0].hdr_hdl;
					ipv4_header_set = true ;
					IPACMDBG(" ODU v4 full header name:%s header handle:(0x%x)\n",
										 pHeaderDescriptor->hdr[0].name,
												 ODU_hdr_hdl_v4);
					break;
				 }
		}


		/* copy partial header for v6*/
		for (cnt=0; cnt<tx_prop->num_tx_props; cnt++)
		{
			if(tx_prop->tx[cnt].ip==IPA_IP_v6)
			{

				IPACMDBG("Got partial v6-header name from %d tx props\n", cnt);
				memset(&sCopyHeader, 0, sizeof(sCopyHeader));
				memcpy(sCopyHeader.name,
						tx_prop->tx[cnt].hdr_name,
							sizeof(sCopyHeader.name));

				IPACMDBG("header name: %s in tx:%d\n", sCopyHeader.name,cnt);
				if (m_header.CopyHeader(&sCopyHeader) == false)
				{
					PERROR("ioctl copy header failed");
					res = IPACM_FAILURE;
					goto fail;
				}

				IPACMDBG("header length: %d, paritial: %d\n", sCopyHeader.hdr_len, sCopyHeader.is_partial);
				if (sCopyHeader.hdr_len > IPA_HDR_MAX_SIZE)
				{
					IPACMERR("header oversize\n");
					res = IPACM_FAILURE;
					goto fail;
				}
				else
				{
					memcpy(pHeaderDescriptor->hdr[0].hdr,
							sCopyHeader.hdr,
								sCopyHeader.hdr_len);
				}

				/* copy client mac_addr to partial header */
				if (sCopyHeader.is_eth2_ofst_valid)
				{
					memcpy(&pHeaderDescriptor->hdr[0].hdr[sCopyHeader.eth2_ofst],
					 mac_addr,
					 IPA_MAC_ADDR_SIZE);
				}
				/* replace src mac to bridge mac_addr if any  */
				if (IPACM_Iface::ipacmcfg->ipa_bridge_enable)
				{
					memcpy(&pHeaderDescriptor->hdr[0].hdr[sCopyHeader.eth2_ofst+IPA_MAC_ADDR_SIZE],
							IPACM_Iface::ipacmcfg->bridge_mac,
							IPA_MAC_ADDR_SIZE);
					IPACMDBG_H("device is in bridge mode \n");
				}

				pHeaderDescriptor->commit = true;
				pHeaderDescriptor->num_hdrs = 1;

				memset(pHeaderDescriptor->hdr[0].name, 0,
					 sizeof(pHeaderDescriptor->hdr[0].name));

				strlcpy(pHeaderDescriptor->hdr[0].name, IPA_ODU_HDR_NAME_v6, sizeof(pHeaderDescriptor->hdr[0].name));
				pHeaderDescriptor->hdr[0].hdr_len = sCopyHeader.hdr_len;
				pHeaderDescriptor->hdr[0].hdr_hdl = -1;
				pHeaderDescriptor->hdr[0].is_partial = 0;
				pHeaderDescriptor->hdr[0].status = -1;

				if (m_header.AddHeader(pHeaderDescriptor) == false ||
						pHeaderDescriptor->hdr[0].status != 0)
				{
					IPACMERR("ioctl IPA_IOC_ADD_HDR failed: %d\n", pHeaderDescriptor->hdr[0].status);
					res = IPACM_FAILURE;
					goto fail;
				}

				ODU_hdr_hdl_v6 = pHeaderDescriptor->hdr[0].hdr_hdl;
				ipv6_header_set = true ;
				IPACMDBG(" ODU v4 full header name:%s header handle:(0x%x)\n",
									 pHeaderDescriptor->hdr[0].name,
											 ODU_hdr_hdl_v6);
				break;
			}
		}
	}
fail:
	free(pHeaderDescriptor);
	return res;
}


/* handle odu default route rule configuration */
int IPACM_Lan::handle_odu_route_add()
{
	/* add default WAN route */
	struct ipa_ioc_add_rt_rule *rt_rule;
	struct ipa_rt_rule_add *rt_rule_entry;
	uint32_t tx_index;
	const int NUM = 1;

	if(tx_prop == NULL)
	{
	  IPACMDBG_H("No tx properties, ignore default route setting\n");
	  return IPACM_SUCCESS;
	}

	rt_rule = (struct ipa_ioc_add_rt_rule *)
		 calloc(1, sizeof(struct ipa_ioc_add_rt_rule) +
						NUM * sizeof(struct ipa_rt_rule_add));

	if (!rt_rule)
	{
		IPACMERR("Error Locate ipa_ioc_add_rt_rule memory...\n");
		return IPACM_FAILURE;
	}

	rt_rule->commit = 1;
	rt_rule->num_rules = (uint8_t)NUM;


	IPACMDBG_H("WAN table created %s \n", rt_rule->rt_tbl_name);
	rt_rule_entry = &rt_rule->rules[0];
	rt_rule_entry->at_rear = true;

	for (tx_index = 0; tx_index < iface_query->num_tx_props; tx_index++)
	{

		if (IPA_IP_v4 == tx_prop->tx[tx_index].ip)
		{
			strlcpy(rt_rule->rt_tbl_name, IPACM_Iface::ipacmcfg->rt_tbl_odu_v4.name, sizeof(rt_rule->rt_tbl_name));
			rt_rule_entry->rule.hdr_hdl = ODU_hdr_hdl_v4;
			rt_rule->ip = IPA_IP_v4;
		}
		else
		{
			strlcpy(rt_rule->rt_tbl_name, IPACM_Iface::ipacmcfg->rt_tbl_odu_v6.name, sizeof(rt_rule->rt_tbl_name));
			rt_rule_entry->rule.hdr_hdl = ODU_hdr_hdl_v6;
			rt_rule->ip = IPA_IP_v6;
		}

		rt_rule_entry->rule.dst = tx_prop->tx[tx_index].dst_pipe;
		memcpy(&rt_rule_entry->rule.attrib,
					 &tx_prop->tx[tx_index].attrib,
					 sizeof(rt_rule_entry->rule.attrib));

		rt_rule_entry->rule.attrib.attrib_mask |= IPA_FLT_DST_ADDR;
		if (IPA_IP_v4 == tx_prop->tx[tx_index].ip)
		{
			rt_rule_entry->rule.attrib.u.v4.dst_addr      = 0;
			rt_rule_entry->rule.attrib.u.v4.dst_addr_mask = 0;
			if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
				rt_rule_entry->rule.hashable = true;
			if (false == m_routing.AddRoutingRule(rt_rule))
			{
				IPACMERR("Routing rule addition failed!\n");
				free(rt_rule);
				return IPACM_FAILURE;
			}
			odu_route_rule_v4_hdl[tx_index] = rt_rule_entry->rt_rule_hdl;
			IPACMDBG_H("Got ipv4 ODU-route rule hdl:0x%x,tx:%d,ip-type: %d \n",
						 odu_route_rule_v4_hdl[tx_index],
						 tx_index,
						 IPA_IP_v4);
		}
		else
		{
			rt_rule_entry->rule.attrib.u.v6.dst_addr[0] = 0;
			rt_rule_entry->rule.attrib.u.v6.dst_addr[1] = 0;
			rt_rule_entry->rule.attrib.u.v6.dst_addr[2] = 0;
			rt_rule_entry->rule.attrib.u.v6.dst_addr[3] = 0;
			rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[0] = 0;
			rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[1] = 0;
			rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[2] = 0;
			rt_rule_entry->rule.attrib.u.v6.dst_addr_mask[3] = 0;
			if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
				rt_rule_entry->rule.hashable = true;
			if (false == m_routing.AddRoutingRule(rt_rule))
			{
				IPACMERR("Routing rule addition failed!\n");
				free(rt_rule);
				return IPACM_FAILURE;
			}
			odu_route_rule_v6_hdl[tx_index] = rt_rule_entry->rt_rule_hdl;
			IPACMDBG_H("Set ipv6 ODU-route rule hdl for v6_lan_table:0x%x,tx:%d,ip-type: %d \n",
					odu_route_rule_v6_hdl[tx_index],
					tx_index,
					IPA_IP_v6);
		}
	}
	free(rt_rule);
	return IPACM_SUCCESS;
}

/* handle odu default route rule deletion */
int IPACM_Lan::handle_odu_route_del()
{
	uint32_t tx_index;

	if(tx_prop == NULL)
	{
		IPACMDBG_H("No tx properties, ignore delete default route setting\n");
		return IPACM_SUCCESS;
	}

	for (tx_index = 0; tx_index < iface_query->num_tx_props; tx_index++)
	{
		if (tx_prop->tx[tx_index].ip == IPA_IP_v4)
		{
			IPACMDBG_H("Tx:%d, ip-type: %d match ip-type: %d, RT-rule deleted\n",
					tx_index, tx_prop->tx[tx_index].ip,IPA_IP_v4);

			if (m_routing.DeleteRoutingHdl(odu_route_rule_v4_hdl[tx_index], IPA_IP_v4)
					== false)
			{
				IPACMERR("IP-family:%d, Routing rule(hdl:0x%x) deletion failed with tx_index %d!\n", IPA_IP_v4, odu_route_rule_v4_hdl[tx_index], tx_index);
				return IPACM_FAILURE;
			}
		}
		else
		{
			IPACMDBG_H("Tx:%d, ip-type: %d match ip-type: %d, RT-rule deleted\n",
					tx_index, tx_prop->tx[tx_index].ip,IPA_IP_v6);

			if (m_routing.DeleteRoutingHdl(odu_route_rule_v6_hdl[tx_index], IPA_IP_v6)
					== false)
			{
				IPACMERR("IP-family:%d, Routing rule(hdl:0x%x) deletion failed with tx_index %d!\n", IPA_IP_v6, odu_route_rule_v6_hdl[tx_index], tx_index);
				return IPACM_FAILURE;
			}
		}
	}

	return IPACM_SUCCESS;
}

/*handle eth client del mode*/
int IPACM_Lan::handle_eth_client_down_evt(uint8_t *mac_addr)
{
	int clt_indx;
	uint32_t tx_index;
	int num_eth_client_tmp = num_eth_client;
	int num_v6;

	IPACMDBG_H("total client: %d\n", num_eth_client_tmp);

	clt_indx = get_eth_client_index(mac_addr);
	if (clt_indx == IPACM_INVALID_INDEX)
	{
		IPACMDBG_H("eth client not attached\n");
		return IPACM_SUCCESS;
	}

	/* First reset nat rules and then route rules */
	if(get_client_memptr(eth_client, clt_indx)->ipv4_set == true)
	{
			IPACMDBG_H("Clean Nat Rules for ipv4:0x%x\n", get_client_memptr(eth_client, clt_indx)->v4_addr);
			CtList->HandleNeighIpAddrDelEvt(get_client_memptr(eth_client, clt_indx)->v4_addr);
	}

	if (delete_eth_rtrules(clt_indx, IPA_IP_v4))
	{
		IPACMERR("unbale to delete ecm-client v4 route rules for index: %d\n", clt_indx);
		return IPACM_FAILURE;
	}

	if (delete_eth_rtrules(clt_indx, IPA_IP_v6))
	{
		IPACMERR("unbale to delete ecm-client v6 route rules for index: %d\n", clt_indx);
		return IPACM_FAILURE;
	}

	/* Delete eth client header */
	if(get_client_memptr(eth_client, clt_indx)->ipv4_header_set == true)
	{
		if (m_header.DeleteHeaderHdl(get_client_memptr(eth_client, clt_indx)->hdr_hdl_v4)
				== false)
		{
			return IPACM_FAILURE;
		}
		get_client_memptr(eth_client, clt_indx)->ipv4_header_set = false;
	}

	if(get_client_memptr(eth_client, clt_indx)->ipv6_header_set == true)
	{
		if (m_header.DeleteHeaderHdl(get_client_memptr(eth_client, clt_indx)->hdr_hdl_v6)
				== false)
		{
			return IPACM_FAILURE;
		}
		get_client_memptr(eth_client, clt_indx)->ipv6_header_set = false;
	}

	/* Reset ip_set to 0*/
	get_client_memptr(eth_client, clt_indx)->ipv4_set = false;
	get_client_memptr(eth_client, clt_indx)->ipv6_set = 0;
	get_client_memptr(eth_client, clt_indx)->ipv4_header_set = false;
	get_client_memptr(eth_client, clt_indx)->ipv6_header_set = false;
	get_client_memptr(eth_client, clt_indx)->route_rule_set_v4 = false;
	get_client_memptr(eth_client, clt_indx)->route_rule_set_v6 = 0;

	for (; clt_indx < num_eth_client_tmp - 1; clt_indx++)
	{
		memcpy(get_client_memptr(eth_client, clt_indx)->mac,
					 get_client_memptr(eth_client, (clt_indx + 1))->mac,
					 sizeof(get_client_memptr(eth_client, clt_indx)->mac));

		get_client_memptr(eth_client, clt_indx)->hdr_hdl_v4 = get_client_memptr(eth_client, (clt_indx + 1))->hdr_hdl_v4;
		get_client_memptr(eth_client, clt_indx)->hdr_hdl_v6 = get_client_memptr(eth_client, (clt_indx + 1))->hdr_hdl_v6;
		get_client_memptr(eth_client, clt_indx)->v4_addr = get_client_memptr(eth_client, (clt_indx + 1))->v4_addr;

		get_client_memptr(eth_client, clt_indx)->ipv4_set = get_client_memptr(eth_client, (clt_indx + 1))->ipv4_set;
		get_client_memptr(eth_client, clt_indx)->ipv6_set = get_client_memptr(eth_client, (clt_indx + 1))->ipv6_set;
		get_client_memptr(eth_client, clt_indx)->ipv4_header_set = get_client_memptr(eth_client, (clt_indx + 1))->ipv4_header_set;
		get_client_memptr(eth_client, clt_indx)->ipv6_header_set = get_client_memptr(eth_client, (clt_indx + 1))->ipv6_header_set;

		get_client_memptr(eth_client, clt_indx)->route_rule_set_v4 = get_client_memptr(eth_client, (clt_indx + 1))->route_rule_set_v4;
		get_client_memptr(eth_client, clt_indx)->route_rule_set_v6 = get_client_memptr(eth_client, (clt_indx + 1))->route_rule_set_v6;

        for (num_v6=0;num_v6< get_client_memptr(eth_client, clt_indx)->ipv6_set;num_v6++)
	    {
		    get_client_memptr(eth_client, clt_indx)->v6_addr[num_v6][0] = get_client_memptr(eth_client, (clt_indx + 1))->v6_addr[num_v6][0];
		    get_client_memptr(eth_client, clt_indx)->v6_addr[num_v6][1] = get_client_memptr(eth_client, (clt_indx + 1))->v6_addr[num_v6][1];
		    get_client_memptr(eth_client, clt_indx)->v6_addr[num_v6][2] = get_client_memptr(eth_client, (clt_indx + 1))->v6_addr[num_v6][2];
		    get_client_memptr(eth_client, clt_indx)->v6_addr[num_v6][3] = get_client_memptr(eth_client, (clt_indx + 1))->v6_addr[num_v6][3];
        }

		for (tx_index = 0; tx_index < iface_query->num_tx_props; tx_index++)
		{
			get_client_memptr(eth_client, clt_indx)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v4 =
				 get_client_memptr(eth_client, (clt_indx + 1))->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v4;

			for(num_v6=0;num_v6< get_client_memptr(eth_client, clt_indx)->route_rule_set_v6;num_v6++)
			{
			  get_client_memptr(eth_client, clt_indx)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6[num_v6] =
			   	 get_client_memptr(eth_client, (clt_indx + 1))->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6[num_v6];
			  get_client_memptr(eth_client, clt_indx)->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6_wan[num_v6] =
			   	 get_client_memptr(eth_client, (clt_indx + 1))->eth_rt_hdl[tx_index].eth_rt_rule_hdl_v6_wan[num_v6];
		    }
		}
	}

	IPACMDBG_H(" %d eth client deleted successfully \n", num_eth_client);
	num_eth_client = num_eth_client - 1;
	IPACMDBG_H(" Number of eth client: %d\n", num_eth_client);

	/* Del RM dependency */
	if(num_eth_client == 0)
	{
		if(IPACM_Iface::ipacmcfg->GetIPAVer() >= IPA_HW_None && IPACM_Iface::ipacmcfg->GetIPAVer() < IPA_HW_v4_0)
		{
			/* Delete corresponding ipa_rm_resource_name of TX-endpoint after delete all IPV4V6 RT-rule*/
			IPACMDBG_H("dev %s delete producer dependency\n", dev_name);
			if (tx_prop != NULL)
			{
				IPACMDBG_H("depend Got pipe %d rm index : %d \n", tx_prop->tx[0].dst_pipe, IPACM_Iface::ipacmcfg->ipa_client_rm_map_tbl[tx_prop->tx[0].dst_pipe]);
				IPACM_Iface::ipacmcfg->DelRmDepend(IPACM_Iface::ipacmcfg->ipa_client_rm_map_tbl[tx_prop->tx[0].dst_pipe]);
			}
		}
	}

	return IPACM_SUCCESS;
}

/*handle LAN iface down event*/
int IPACM_Lan::handle_down_evt()
{
	uint32_t i;
	int res = IPACM_SUCCESS;

	IPACMDBG_H("lan handle_down_evt\n ");
	if (ipa_if_cate == ODU_IF)
	{
		/* delete ODU default RT rules */
		if (IPACM_Iface::ipacmcfg->ipacm_odu_embms_enable == true)
		{
			IPACMDBG_H("eMBMS enable, delete eMBMS DL RT rule\n");
			handle_odu_route_del();
		}

		/* delete full header */
		if (ipv4_header_set)
		{
			if (m_header.DeleteHeaderHdl(ODU_hdr_hdl_v4)
					== false)
			{
					IPACMERR("ODU ipv4 header delete fail\n");
					res = IPACM_FAILURE;
					goto fail;
			}
			IPACMDBG_H("ODU ipv4 header delete success\n");
		}

		if (ipv6_header_set)
		{
			if (m_header.DeleteHeaderHdl(ODU_hdr_hdl_v6)
					== false)
			{
				IPACMERR("ODU ipv6 header delete fail\n");
				res = IPACM_FAILURE;
				goto fail;
			}
			IPACMERR("ODU ipv6 header delete success\n");
		}
	}

	/* no iface address up, directly close iface*/
	if (ip_type == IPACM_IP_NULL)
	{
		goto fail;
	}

	/* delete wan filter rule */
	if (IPACM_Wan::isWanUP(ipa_if_num) && rx_prop != NULL)
	{
		IPACMDBG_H("LAN IF goes down, backhaul type %d\n", IPACM_Wan::backhaul_mode);
		handle_wan_down(IPACM_Wan::backhaul_mode);
#ifdef FEATURE_IPA_ANDROID
#ifndef FEATURE_IPACM_HAL
		/* Clean-up tethered-iface list */
		IPACM_Wan::delete_tether_iface(IPA_IP_v4, ipa_if_num);
#endif
#endif
	}

	if (IPACM_Wan::isWanUP_V6(ipa_if_num) && rx_prop != NULL)
	{
		IPACMDBG_H("LAN IF goes down, backhaul type %d\n", IPACM_Wan::backhaul_mode);
		handle_wan_down_v6(IPACM_Wan::backhaul_mode);
#ifdef FEATURE_IPA_ANDROID
		/* Clean-up tethered-iface list */
		IPACM_Wan::delete_tether_iface(IPA_IP_v6, ipa_if_num);
#endif
	}

	/* delete default filter rules */
	if (ip_type != IPA_IP_v6 && rx_prop != NULL)
	{
		if(m_filtering.DeleteFilteringHdls(ipv4_icmp_flt_rule_hdl, IPA_IP_v4, NUM_IPV4_ICMP_FLT_RULE) == false)
		{
			IPACMERR("Error Deleting ICMPv4 Filtering Rule, aborting...\n");
			res = IPACM_FAILURE;
			goto fail;
		}
		IPACM_Iface::ipacmcfg->decreaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v4, NUM_IPV4_ICMP_FLT_RULE);

		if(dft_v4fl_rule_hdl[0] != 0)
		{
				if (m_filtering.DeleteFilteringHdls(dft_v4fl_rule_hdl, IPA_IP_v4,
						IPV4_DEFAULT_FILTERTING_RULES) == false)
				{
					IPACMERR("Error Deleting Filtering Rule, aborting...\n");
					res = IPACM_FAILURE;
					goto fail;
				}
				IPACM_Iface::ipacmcfg->decreaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v4, IPV4_DEFAULT_FILTERTING_RULES);
		}

		/* free private-subnet ipv4 filter rules */
		if (IPACM_Iface::ipacmcfg->ipa_num_private_subnet > IPA_PRIV_SUBNET_FILTER_RULE_HANDLES)
		{
			IPACMERR(" the number of rules are bigger than array, aborting...\n");
			res = IPACM_FAILURE;
			goto fail;
		}

#ifdef FEATURE_IPA_ANDROID
		if(m_filtering.DeleteFilteringHdls(private_fl_rule_hdl, IPA_IP_v4, IPA_MAX_PRIVATE_SUBNET_ENTRIES + IPA_MAX_MTU_ENTRIES) == false)
		{
			IPACMERR("Error deleting private subnet IPv4 flt rules.\n");
			res = IPACM_FAILURE;
			goto fail;
		}
		IPACM_Iface::ipacmcfg->decreaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v4, IPA_MAX_PRIVATE_SUBNET_ENTRIES + IPA_MAX_MTU_ENTRIES);
#else
		if (m_filtering.DeleteFilteringHdls(private_fl_rule_hdl, IPA_IP_v4, IPACM_Iface::ipacmcfg->ipa_num_private_subnet) == false)
		{
			IPACMERR("Error deleting private subnet IPv4 flt rules.\n");
			res = IPACM_FAILURE;
			goto fail;
		}
		IPACM_Iface::ipacmcfg->decreaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v4, IPACM_Iface::ipacmcfg->ipa_num_private_subnet);
#endif
		IPACMDBG_H("Deleted private subnet v4 filter rules successfully.\n");
	}
	IPACMDBG_H("Finished delete default iface ipv4 filtering rules \n ");

	if (ip_type != IPA_IP_v4 && rx_prop != NULL)
	{
		if(m_filtering.DeleteFilteringHdls(ipv6_icmp_flt_rule_hdl, IPA_IP_v6, NUM_IPV6_ICMP_FLT_RULE) == false)
		{
			IPACMERR("Error Deleting ICMPv6 Filtering Rule, aborting...\n");
			res = IPACM_FAILURE;
			goto fail;
		}
		IPACM_Iface::ipacmcfg->decreaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v6, NUM_IPV6_ICMP_FLT_RULE);

		if (dft_v6fl_rule_hdl[0] != 0)
		{
			if (m_filtering.DeleteFilteringHdls(dft_v6fl_rule_hdl, IPA_IP_v6, IPV6_DEFAULT_FILTERTING_RULES) == false)
			{
				IPACMERR("Error Adding RuleTable(1) to Filtering, aborting...\n");
				res = IPACM_FAILURE;
				goto fail;
			}
				IPACM_Iface::ipacmcfg->decreaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v6, IPV6_DEFAULT_FILTERTING_RULES);
		}
#ifdef FEATURE_L2TP
		if(ipa_if_cate == ODU_IF)
		{
			if(m_filtering.DeleteFilteringHdls(tcp_syn_flt_rule_hdl, IPA_IP_v6, IPA_IP_MAX) == false)
			{
				IPACMERR("Error Deleting TCP SYN L2TP Filtering Rule, aborting...\n");
				res = IPACM_FAILURE;
				goto fail;
			}
		}
#endif
	}
	IPACMDBG_H("Finished delete default iface ipv6 filtering rules \n ");

	if (ip_type != IPA_IP_v6)
	{
		if (m_routing.DeleteRoutingHdl(dft_rt_rule_hdl[0], IPA_IP_v4)
				== false)
		{
			IPACMERR("Routing rule deletion failed!\n");
			res = IPACM_FAILURE;
			goto fail;
		}
	}
	IPACMDBG_H("Finished delete default iface ipv4 rules \n ");

	/* delete default v6 routing rule */
	if (ip_type != IPA_IP_v4)
	{
		/* may have multiple ipv6 iface-RT rules*/
		for (i = 0; i < 2*num_dft_rt_v6; i++)
		{
			if (m_routing.DeleteRoutingHdl(dft_rt_rule_hdl[MAX_DEFAULT_v4_ROUTE_RULES + i], IPA_IP_v6)
					== false)
			{
				IPACMERR("Routing rule deletion failed!\n");
				res = IPACM_FAILURE;
				goto fail;
			}
		}
	}

	IPACMDBG_H("Finished delete default iface ipv6 rules \n ");

	/* free the edm clients cache */
	IPACMDBG_H("Free ecm clients cache\n");

	if(IPACM_Iface::ipacmcfg->GetIPAVer() >= IPA_HW_None && IPACM_Iface::ipacmcfg->GetIPAVer() < IPA_HW_v4_0)
	{
		/* Delete corresponding ipa_rm_resource_name of TX-endpoint after delete all IPV4V6 RT-rule */
		IPACMDBG_H("dev %s delete producer dependency\n", dev_name);
		if (tx_prop != NULL)
		{
			IPACMDBG_H("depend Got pipe %d rm index : %d \n", tx_prop->tx[0].dst_pipe, IPACM_Iface::ipacmcfg->ipa_client_rm_map_tbl[tx_prop->tx[0].dst_pipe]);
			IPACM_Iface::ipacmcfg->DelRmDepend(IPACM_Iface::ipacmcfg->ipa_client_rm_map_tbl[tx_prop->tx[0].dst_pipe]);
		}
	}
	eth_bridge_post_event(IPA_ETH_BRIDGE_IFACE_DOWN, IPA_IP_MAX, NULL, NULL, NULL, IPA_CLIENT_MAX);

/* Delete private subnet*/
#ifdef FEATURE_IPA_ANDROID
	if (ip_type != IPA_IP_v6)
	{
		IPACMDBG_H("current IPACM private subnet_addr number(%d)\n", IPACM_Iface::ipacmcfg->ipa_num_private_subnet);
		IPACMDBG_H(" Delete IPACM private subnet_addr as: 0x%x \n", if_ipv4_subnet);
		if(IPACM_Iface::ipacmcfg->DelPrivateSubnet(if_ipv4_subnet, ipa_if_num) == false)
		{
			IPACMERR(" can't Delete IPACM private subnet_addr as: 0x%x \n", if_ipv4_subnet);
		}
	}

	/* reset the IPA-client pipe enum */
	if(ipa_if_cate != WAN_IF)
	{
#ifdef FEATURE_IPACM_HAL
		handle_tethering_client(true, IPACM_CLIENT_MAX);
#else
		handle_tethering_client(true, IPACM_CLIENT_USB);
#endif
	}
#endif /* defined(FEATURE_IPA_ANDROID)*/
fail:
	/* clean eth-client header, routing rules */
	IPACMDBG_H("left %d eth clients need to be deleted \n ", num_eth_client);
	for (i = 0; i < num_eth_client; i++)
	{
		/* First reset nat rules and then route rules */
		if(get_client_memptr(eth_client, i)->ipv4_set == true)
		{
			IPACMDBG_H("Clean Nat Rules for ipv4:0x%x\n", get_client_memptr(eth_client, i)->v4_addr);
			CtList->HandleNeighIpAddrDelEvt(get_client_memptr(eth_client, i)->v4_addr);
		}

		if (delete_eth_rtrules(i, IPA_IP_v4))
		{
			IPACMERR("unbale to delete ecm-client v4 route rules for index %d\n", i);
			res = IPACM_FAILURE;
		}

		if (delete_eth_rtrules(i, IPA_IP_v6))
		{
			IPACMERR("unbale to delete ecm-client v6 route rules for index %d\n", i);
			res = IPACM_FAILURE;
		}

		IPACMDBG_H("Delete %d client header\n", num_eth_client);

		if(get_client_memptr(eth_client, i)->ipv4_header_set == true)
		{
			if (m_header.DeleteHeaderHdl(get_client_memptr(eth_client, i)->hdr_hdl_v4)
				== false)
			{
				res = IPACM_FAILURE;
			}
		}

		if(get_client_memptr(eth_client, i)->ipv6_header_set == true)
		{
			if (m_header.DeleteHeaderHdl(get_client_memptr(eth_client, i)->hdr_hdl_v6)
					== false)
			{
				res = IPACM_FAILURE;
			}
		}
	} /* end of for loop */

	/* check software routing fl rule hdl */
	if (softwarerouting_act == true && rx_prop != NULL)
	{
		handle_software_routing_disable(false);
	}

	if (odu_route_rule_v4_hdl != NULL)
	{
		free(odu_route_rule_v4_hdl);
	}
	if (odu_route_rule_v6_hdl != NULL)
	{
		free(odu_route_rule_v6_hdl);
	}
	if (rx_prop != NULL)
	{
		if(IPACM_Iface::ipacmcfg->GetIPAVer() >= IPA_HW_None && IPACM_Iface::ipacmcfg->GetIPAVer() < IPA_HW_v4_0)
		{
			/* Delete corresponding ipa_rm_resource_name of RX-endpoint after delete all IPV4V6 FT-rule */
			IPACMDBG_H("dev %s delete producer dependency\n", dev_name);
			IPACMDBG_H("depend Got pipe %d rm index : %d \n", rx_prop->rx[0].src_pipe, IPACM_Iface::ipacmcfg->ipa_client_rm_map_tbl[rx_prop->rx[0].src_pipe]);
			IPACM_Iface::ipacmcfg->DelRmDepend(IPACM_Iface::ipacmcfg->ipa_client_rm_map_tbl[rx_prop->rx[0].src_pipe]);
			IPACMDBG_H("Finished delete dependency \n ");
		}
		if (!(IPACM_Iface::ipacmcfg->isEthBridgingSupported()))
				free(rx_prop);
	}

	if (eth_client != NULL)
	{
		free(eth_client);
	}
	if (!(IPACM_Iface::ipacmcfg->isEthBridgingSupported()))
	{
		if (tx_prop != NULL)
		{
			free(tx_prop);
		}
		if (iface_query != NULL)
		{
			free(iface_query);
		}
	}
	is_active = false;
	post_del_self_evt();

	return res;
}

/* install UL filter rule from Q6 */
int IPACM_Lan::handle_uplink_filter_rule(ipacm_ext_prop *prop, ipa_ip_type iptype, uint8_t xlat_mux_id)
{
	ipa_flt_rule_add flt_rule_entry;
	int len = 0, cnt, ret = IPACM_SUCCESS;
	ipa_ioc_add_flt_rule *pFilteringTable;
	ipa_fltr_installed_notif_req_msg_v01 flt_index;
	int fd;
	int i, index, eq_index;
	uint32_t value = 0;
	uint8_t qmap_id, xlat_debug;
	bool result;

	IPACMDBG_H("Set modem UL flt rules\n");

	if (rx_prop == NULL)
	{
		IPACMDBG_H("No rx properties registered for iface %s\n", dev_name);
		return IPACM_SUCCESS;
	}

	if(prop == NULL || prop->num_ext_props <= 0)
	{
		IPACMDBG_H("No extended property.\n");
		return IPACM_SUCCESS;
	}

	fd = open(IPA_DEVICE_NAME, O_RDWR);
	if (0 == fd)
	{
		IPACMERR("Failed opening %s.\n", IPA_DEVICE_NAME);
		return IPACM_FAILURE;
	}
	if (prop->num_ext_props > MAX_WAN_UL_FILTER_RULES)
	{
		IPACMERR("number of modem UL rules > MAX_WAN_UL_FILTER_RULES, aborting...\n");
		close(fd);
		return IPACM_FAILURE;
	}

	memset(&flt_index, 0, sizeof(flt_index));
	flt_index.source_pipe_index = ioctl(fd, IPA_IOC_QUERY_EP_MAPPING, rx_prop->rx[0].src_pipe);
	if ((int)flt_index.source_pipe_index == -1)
	{
		IPACMERR("Error Query src pipe idx, aborting...\n");
		close(fd);
		return IPACM_FAILURE;
	}

	flt_index.install_status = IPA_QMI_RESULT_SUCCESS_V01;
	if (!IPACM_Iface::ipacmcfg->isIPAv3Supported())
	{
		flt_index.filter_index_list_len = prop->num_ext_props;
	}
	else /* IPAv3 */
	{
		flt_index.rule_id_valid = 1;
		flt_index.rule_id_len = prop->num_ext_props;
	}
	flt_index.embedded_pipe_index_valid = 1;
	flt_index.embedded_pipe_index = ioctl(fd, IPA_IOC_QUERY_EP_MAPPING, IPA_CLIENT_APPS_LAN_WAN_PROD);
	if ((int)flt_index.embedded_pipe_index == -1)
	{
		IPACMERR("Error Query emb pipe idx, aborting...\n");
		close(fd);
		return IPACM_FAILURE;
	}

	flt_index.retain_header_valid = 1;
	flt_index.retain_header = 0;
	flt_index.embedded_call_mux_id_valid = 1;	
	qmap_id = IPACM_Iface::ipacmcfg->GetQmapId();
	xlat_debug = IPACM_Wan::getXlat_Mux_Id();
	flt_index.embedded_call_mux_id = qmap_id;
	if (!IPACM_Iface::ipacmcfg->isIPAv3Supported())
	{
		IPACMDBG_H("flt_index: src pipe: %d, num of rules: %d, ebd pipe: %d, mux id: %d, xlat_mux id: %d, wan-debug %d\n",
			flt_index.source_pipe_index, flt_index.filter_index_list_len, flt_index.embedded_pipe_index, flt_index.embedded_call_mux_id, xlat_mux_id, xlat_debug);
	}
	else /* IPAv3 */
	{
		IPACMDBG_H("flt_index: src pipe: %d, num of rules: %d, ebd pipe: %d, mux id: %d, xlat_mux id: %d, wan-debug %d\n",
			flt_index.source_pipe_index, flt_index.rule_id_len, flt_index.embedded_pipe_index, flt_index.embedded_call_mux_id, xlat_mux_id, xlat_debug);
	}
	len = sizeof(struct ipa_ioc_add_flt_rule) + prop->num_ext_props * sizeof(struct ipa_flt_rule_add);
	pFilteringTable = (struct ipa_ioc_add_flt_rule*)malloc(len);
	if (pFilteringTable == NULL)
	{
		IPACMERR("Error Locate ipa_flt_rule_add memory...\n");
		close(fd);
		return IPACM_FAILURE;
	}
	memset(pFilteringTable, 0, len);

	pFilteringTable->commit = 1;
	pFilteringTable->ep = rx_prop->rx[0].src_pipe;
	pFilteringTable->global = false;
	pFilteringTable->ip = iptype;
	pFilteringTable->num_rules = prop->num_ext_props;

	memset(&flt_rule_entry, 0, sizeof(struct ipa_flt_rule_add)); // Zero All Fields
	flt_rule_entry.at_rear = 1;
	if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
		if (flt_rule_entry.rule.eq_attrib.ipv4_frag_eq_present)
			flt_rule_entry.at_rear = 0;
	flt_rule_entry.flt_rule_hdl = -1;
	flt_rule_entry.status = -1;

	flt_rule_entry.rule.retain_hdr = 0;
	flt_rule_entry.rule.to_uc = 0;
	flt_rule_entry.rule.eq_attrib_type = 1;
	if(iptype == IPA_IP_v4)
	{
		if (ipa_if_cate == ODU_IF && IPACM_Wan::isWan_Bridge_Mode())
		{
			IPACMDBG_H("WAN, ODU are in bridge mode \n");
			flt_rule_entry.rule.action = IPA_PASS_TO_ROUTING;
		}
		else
		{
			flt_rule_entry.rule.action = IPA_PASS_TO_SRC_NAT;
		}
	}
	else if(iptype == IPA_IP_v6)
		flt_rule_entry.rule.action = IPA_PASS_TO_ROUTING;
	else
	{
		IPACMERR("IP type is not expected.\n");
		ret = IPACM_FAILURE;
		goto fail;
	}

	index = IPACM_Iface::ipacmcfg->getFltRuleCount(rx_prop->rx[0].src_pipe, iptype);

	for(cnt=0; cnt<prop->num_ext_props; cnt++)
	{
		memcpy(&flt_rule_entry.rule.eq_attrib,
					 &prop->prop[cnt].eq_attrib,
					 sizeof(prop->prop[cnt].eq_attrib));
		flt_rule_entry.rule.rt_tbl_idx = prop->prop[cnt].rt_tbl_idx;

		if (iptype == IPA_IP_v4)
		{
			if ((ipa_if_cate != ODU_IF) || (IPACM_Wan::isWan_Bridge_Mode() == false))
			{
				/* NAT block will set the proper MUX ID in the metadata according to the relevant PDN */
				if (IPACM_Iface::ipacmcfg->GetIPAVer() >= IPA_HW_v4_0)
					flt_rule_entry.rule.set_metadata = true;
			}
		}

		/* Handle XLAT configuration */
		/* temp wa to reset xlat_mux_id to qmap_id if it's xlat call */
		if (IPACM_Wan::isXlat() && (iptype == IPA_IP_v4))
		{
			IPACMDBG_H("WA to replace xlat_mux_id %d with qmap_id: %d\n", xlat_mux_id, qmap_id);
			xlat_mux_id = qmap_id;
		}

		if ((iptype == IPA_IP_v4) && prop->prop[cnt].is_xlat_rule && (xlat_mux_id != 0))
		{
			/* fill the value of meta-data */
			value = xlat_mux_id;
			flt_rule_entry.rule.eq_attrib.metadata_meq32_present = 1;
			flt_rule_entry.rule.eq_attrib.metadata_meq32.offset = 0;
			flt_rule_entry.rule.eq_attrib.metadata_meq32.value = (value & 0xFF) << 16;
			flt_rule_entry.rule.eq_attrib.metadata_meq32.mask = 0x00FF0000;
			IPACMDBG_H("xlat meta-data is modified for rule: %d has index %d with xlat_mux_id: %d\n",
					cnt, index, xlat_mux_id);
			/* disable metadata replacement for xlat rules */
			if (IPACM_Iface::ipacmcfg->GetIPAVer() >= IPA_HW_v4_0)
				flt_rule_entry.rule.set_metadata = false;
		}

#ifdef FEATURE_IPACM_HAL
		/* add prefix equation in modem UL rules */
		if(iptype == IPA_IP_v4 && (flt_rule_entry.rule.eq_attrib.num_offset_meq_32 >= 0)
			&& (flt_rule_entry.rule.eq_attrib.num_offset_meq_32 < IPA_IPFLTR_NUM_MEQ_32_EQNS))
		{
			flt_rule_entry.rule.eq_attrib.num_offset_meq_32++;
			eq_index = flt_rule_entry.rule.eq_attrib.num_offset_meq_32 - 1;
			if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
			{
				if(eq_index == 0)
				{
					flt_rule_entry.rule.eq_attrib.rule_eq_bitmap |= (1<<5);
				}
				else
				{
					flt_rule_entry.rule.eq_attrib.rule_eq_bitmap |= (1<<6);
				}
			}
			else
			{
				if(eq_index == 0)
				{
					flt_rule_entry.rule.eq_attrib.rule_eq_bitmap |= (1<<2);
				}
				else
				{
					flt_rule_entry.rule.eq_attrib.rule_eq_bitmap |= (1<<3);
				}
			}
			flt_rule_entry.rule.eq_attrib.offset_meq_32[eq_index].offset = 12;
			flt_rule_entry.rule.eq_attrib.offset_meq_32[eq_index].mask = prefix[IPA_IP_v4].v4Mask;
			flt_rule_entry.rule.eq_attrib.offset_meq_32[eq_index].value = prefix[IPA_IP_v4].v4Addr;
		}
		else if (flt_rule_entry.rule.eq_attrib.num_offset_meq_32 > IPA_IPFLTR_NUM_MEQ_32_EQNS)
		{
			IPACMERR("Run out of MEQ32 equation.\n");
			flt_rule_entry.rule.eq_attrib.num_offset_meq_32--;
		}
		else
		{
			if ((flt_rule_entry.rule.eq_attrib.num_offset_meq_128 >= 0) &&
				(flt_rule_entry.rule.eq_attrib.num_offset_meq_128 
					< IPA_IPFLTR_NUM_MEQ_128_EQNS))
			{
				flt_rule_entry.rule.eq_attrib.num_offset_meq_128++;
				eq_index = flt_rule_entry.rule.eq_attrib.num_offset_meq_128 - 1;
				if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
				{
					if(eq_index == 0)
					{
						flt_rule_entry.rule.eq_attrib.rule_eq_bitmap |= (1<<3);
					}
					else
					{
						flt_rule_entry.rule.eq_attrib.rule_eq_bitmap |= (1<<4);
					}
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].mask + 0)
							= prefix[IPA_IP_v6].v6Mask[3];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].mask + 4)
							= prefix[IPA_IP_v6].v6Mask[2];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].mask + 8)
							= prefix[IPA_IP_v6].v6Mask[1];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].mask + 12)
							= prefix[IPA_IP_v6].v6Mask[0];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].value + 0)
							= prefix[IPA_IP_v6].v6Addr[3];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].value + 4)
							= prefix[IPA_IP_v6].v6Addr[2];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].value + 8)
							= prefix[IPA_IP_v6].v6Addr[1];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].value + 12)
							= prefix[IPA_IP_v6].v6Addr[0];
				}
				else
				{
					if(eq_index == 0)
					{
						flt_rule_entry.rule.eq_attrib.rule_eq_bitmap |= (1<<9);
					}
					else
					{
						flt_rule_entry.rule.eq_attrib.rule_eq_bitmap |= (1<<10);
					}
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].mask + 0)
							= prefix[IPA_IP_v6].v6Mask[0];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].mask + 4)
							= prefix[IPA_IP_v6].v6Mask[1];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].mask + 8)
							= prefix[IPA_IP_v6].v6Mask[2];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].mask + 12)
							= prefix[IPA_IP_v6].v6Mask[3];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].value + 0)
							= prefix[IPA_IP_v6].v6Addr[0];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].value + 4)
							= prefix[IPA_IP_v6].v6Addr[1];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].value + 8)
							= prefix[IPA_IP_v6].v6Addr[2];
					*(uint32_t *)(flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].value + 12)
							= prefix[IPA_IP_v6].v6Addr[3];
				}
				flt_rule_entry.rule.eq_attrib.offset_meq_128[eq_index].offset = 8;
			}
			else
			{
				IPACMERR("Run out of MEQ128 equation.\n");
					flt_rule_entry.rule.eq_attrib.num_offset_meq_128--;
			}
		}

#endif
		if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
		{
			flt_rule_entry.rule.hashable = prop->prop[cnt].is_rule_hashable;
			flt_rule_entry.rule.rule_id = prop->prop[cnt].rule_id;
			if(rx_prop->rx[0].attrib.attrib_mask & IPA_FLT_META_DATA)	//turn on meta-data equation
			{
				flt_rule_entry.rule.eq_attrib.rule_eq_bitmap |= (1<<9);
				flt_rule_entry.rule.eq_attrib.metadata_meq32_present = 1;
				flt_rule_entry.rule.eq_attrib.metadata_meq32.offset = 0;
				flt_rule_entry.rule.eq_attrib.metadata_meq32.value |= rx_prop->rx[0].attrib.meta_data;
				flt_rule_entry.rule.eq_attrib.metadata_meq32.mask |= rx_prop->rx[0].attrib.meta_data_mask;
			}
		}
		memcpy(&pFilteringTable->rules[cnt], &flt_rule_entry, sizeof(flt_rule_entry));

		IPACMDBG_H("Modem UL filtering rule %d has index %d\n", cnt, index);
		if (!IPACM_Iface::ipacmcfg->isIPAv3Supported())
		{
			flt_index.filter_index_list[cnt].filter_index = index;
			flt_index.filter_index_list[cnt].filter_handle = prop->prop[cnt].filter_hdl;
		}
		else /* IPAv3 */
		{
			flt_index.rule_id[cnt] = prop->prop[cnt].rule_id;
		}
		index++;
	}

	if(false == m_filtering.SendFilteringRuleIndex(&flt_index))
	{
		IPACMERR("Error sending filtering rule index, aborting...\n");
		ret = IPACM_FAILURE;
		goto fail;
	}

#ifdef IPA_IOCTL_SET_FNR_COUNTER_INFO
	/* use index hw-counter */
	if(ipa_if_cate == WLAN_IF && IPACM_Iface::ipacmcfg->hw_fnr_stats_support)
	{
		IPACMDBG_H("hw-index-enable %d, counter %d\n", IPACM_Iface::ipacmcfg->hw_fnr_stats_support, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
		result = m_filtering.AddFilteringRule_hw_index(pFilteringTable, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
	} else {
		result = m_filtering.AddFilteringRule(pFilteringTable);
	}
#else
	result = m_filtering.AddFilteringRule(pFilteringTable);
#endif

	if(result == false)
	{
		IPACMERR("Error Adding RuleTable to Filtering, aborting...\n");
		ret = IPACM_FAILURE;
		goto fail;
	}
	else
	{
		if(iptype == IPA_IP_v4)
		{
			for(i=0; i<pFilteringTable->num_rules; i++)
			{
				wan_ul_fl_rule_hdl_v4[num_wan_ul_fl_rule_v4] = pFilteringTable->rules[i].flt_rule_hdl;
				num_wan_ul_fl_rule_v4++;
			}
			IPACM_Iface::ipacmcfg->increaseFltRuleCount(rx_prop->rx[0].src_pipe, iptype, pFilteringTable->num_rules);
			v4_mux_id = qmap_id;
		}
		else if(iptype == IPA_IP_v6)
		{
			for(i=0; i<pFilteringTable->num_rules; i++)
			{
				wan_ul_fl_rule_hdl_v6[num_wan_ul_fl_rule_v6] = pFilteringTable->rules[i].flt_rule_hdl;
				num_wan_ul_fl_rule_v6++;
			}
			IPACM_Iface::ipacmcfg->increaseFltRuleCount(rx_prop->rx[0].src_pipe, iptype, pFilteringTable->num_rules);
			v6_mux_id = qmap_id;
		}

		else
		{
			IPACMERR("IP type is not expected.\n");
			goto fail;
		}
	}

fail:
	free(pFilteringTable);
	close(fd);
	return ret;
}

int IPACM_Lan::handle_wan_down_v6(ipacm_wan_iface_type backhaul_mode)
{
	ipa_fltr_installed_notif_req_msg_v01 flt_index;
	int fd;

	fd = open(IPA_DEVICE_NAME, O_RDWR);
	if (0 == fd)
	{
		IPACMERR("Failed opening %s.\n", IPA_DEVICE_NAME);
		return IPACM_FAILURE;
	}

	delete_ipv6_prefix_flt_rule();

	memset(ipv6_prefix, 0, sizeof(ipv6_prefix));

	if(backhaul_mode == Q6_WAN && modem_ul_v6_set == true)
	{
		if (num_wan_ul_fl_rule_v6 > MAX_WAN_UL_FILTER_RULES)
		{
			IPACMERR(" the number of rules (%d) are bigger than array (%d), aborting...\n", num_wan_ul_fl_rule_v6, MAX_WAN_UL_FILTER_RULES);
			close(fd);
			return IPACM_FAILURE;
		}
		if (num_wan_ul_fl_rule_v6 == 0)
		{
			IPACMERR("No modem UL rules were installed, return...\n");
			close(fd);
			return IPACM_FAILURE;
		}

		if (m_filtering.DeleteFilteringHdls(wan_ul_fl_rule_hdl_v6,
			IPA_IP_v6, num_wan_ul_fl_rule_v6) == false)
		{
			IPACMERR("Error Deleting RuleTable(1) to Filtering, aborting...\n");
			close(fd);
			return IPACM_FAILURE;
		}
		IPACM_Iface::ipacmcfg->decreaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v6, num_wan_ul_fl_rule_v6);
		memset(wan_ul_fl_rule_hdl_v6, 0, MAX_WAN_UL_FILTER_RULES * sizeof(uint32_t));
		num_wan_ul_fl_rule_v6 = 0;
		modem_ul_v6_set = false;

		memset(&flt_index, 0, sizeof(flt_index));
		flt_index.source_pipe_index = ioctl(fd, IPA_IOC_QUERY_EP_MAPPING, rx_prop->rx[0].src_pipe);
		if ((int)flt_index.source_pipe_index == -1)
		{
			IPACMERR("Error Query src pipe idx, aborting...\n");
			close(fd);
			return IPACM_FAILURE;
		}
		flt_index.install_status = IPA_QMI_RESULT_SUCCESS_V01;
		if (!IPACM_Iface::ipacmcfg->isIPAv3Supported())
		{
			flt_index.filter_index_list_len = 0;
		}
		else /* IPAv3 */
		{
			flt_index.rule_id_valid = 1;
			flt_index.rule_id_len = 0;
		}
		flt_index.embedded_pipe_index_valid = 1;
		flt_index.embedded_pipe_index = ioctl(fd, IPA_IOC_QUERY_EP_MAPPING, IPA_CLIENT_APPS_LAN_WAN_PROD);
		if ((int)flt_index.embedded_pipe_index == -1)
		{
			IPACMERR("Error Query emb pipe idx, aborting...\n");
			close(fd);
			return IPACM_FAILURE;
		}

		flt_index.retain_header_valid = 1;
		flt_index.retain_header = 0;
		flt_index.embedded_call_mux_id_valid = 1;
		flt_index.embedded_call_mux_id = v6_mux_id;
		v6_mux_id = 0;
		if(false == m_filtering.SendFilteringRuleIndex(&flt_index))
		{
			IPACMERR("Error sending filtering rule index, aborting...\n");
			close(fd);
			return IPACM_FAILURE;
		}
	}
	else
	{
		if (m_filtering.DeleteFilteringHdls(&dft_v6fl_rule_hdl[IPV6_DEFAULT_FILTERTING_RULES],
																				IPA_IP_v6, 1) == false)
		{
			IPACMERR("Error Adding RuleTable(1) to Filtering, aborting...\n");
			close(fd);
			return IPACM_FAILURE;
		}
		IPACM_Iface::ipacmcfg->decreaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v6, 1);
		sta_ul_v6_set = false;
	}
	close(fd);
	return IPACM_SUCCESS;
}

int IPACM_Lan::reset_to_dummy_flt_rule(ipa_ip_type iptype, uint32_t rule_hdl)
{
	int len, res = IPACM_SUCCESS;
	struct ipa_flt_rule_mdfy flt_rule;
	struct ipa_ioc_mdfy_flt_rule* pFilteringTable;

	IPACMDBG_H("Reset flt rule to dummy, IP type: %d, hdl: %d\n", iptype, rule_hdl);
	len = sizeof(struct ipa_ioc_mdfy_flt_rule) + sizeof(struct ipa_flt_rule_mdfy);
	pFilteringTable = (struct ipa_ioc_mdfy_flt_rule*)malloc(len);

	if (pFilteringTable == NULL)
	{
		IPACMERR("Error allocate flt rule memory...\n");
		return IPACM_FAILURE;
	}
	memset(pFilteringTable, 0, len);

	pFilteringTable->commit = 1;
	pFilteringTable->ip = iptype;
	pFilteringTable->num_rules = 1;

	memset(&flt_rule, 0, sizeof(struct ipa_flt_rule_mdfy));
	flt_rule.status = -1;
	flt_rule.rule_hdl = rule_hdl;

	flt_rule.rule.retain_hdr = 0;
	flt_rule.rule.action = IPA_PASS_TO_EXCEPTION;

	if(iptype == IPA_IP_v4)
	{
		IPACMDBG_H("Reset IPv4 flt rule to dummy\n");

		flt_rule.rule.attrib.attrib_mask = IPA_FLT_SRC_ADDR | IPA_FLT_DST_ADDR;
		flt_rule.rule.attrib.u.v4.dst_addr = ~0;
		flt_rule.rule.attrib.u.v4.dst_addr_mask = ~0;
		flt_rule.rule.attrib.u.v4.src_addr = ~0;
		flt_rule.rule.attrib.u.v4.src_addr_mask = ~0;

		memcpy(&(pFilteringTable->rules[0]), &flt_rule, sizeof(struct ipa_flt_rule_mdfy));
		if (false == m_filtering.ModifyFilteringRule(pFilteringTable))
		{
			IPACMERR("Error modifying filtering rule.\n");
			res = IPACM_FAILURE;
			goto fail;
		}
		else
		{
			IPACMDBG_H("Flt rule reset to dummy, hdl: 0x%x, status: %d\n", pFilteringTable->rules[0].rule_hdl,
						pFilteringTable->rules[0].status);
		}
	}
	else if(iptype == IPA_IP_v6)
	{
		IPACMDBG_H("Reset IPv6 flt rule to dummy\n");

		flt_rule.rule.attrib.attrib_mask = IPA_FLT_SRC_ADDR | IPA_FLT_DST_ADDR;
		flt_rule.rule.attrib.u.v6.src_addr[0] = ~0;
		flt_rule.rule.attrib.u.v6.src_addr[1] = ~0;
		flt_rule.rule.attrib.u.v6.src_addr[2] = ~0;
		flt_rule.rule.attrib.u.v6.src_addr[3] = ~0;
		flt_rule.rule.attrib.u.v6.src_addr_mask[0] = ~0;
		flt_rule.rule.attrib.u.v6.src_addr_mask[1] = ~0;
		flt_rule.rule.attrib.u.v6.src_addr_mask[2] = ~0;
		flt_rule.rule.attrib.u.v6.src_addr_mask[3] = ~0;
		flt_rule.rule.attrib.u.v6.dst_addr[0] = ~0;
		flt_rule.rule.attrib.u.v6.dst_addr[1] = ~0;
		flt_rule.rule.attrib.u.v6.dst_addr[2] = ~0;
		flt_rule.rule.attrib.u.v6.dst_addr[3] = ~0;
		flt_rule.rule.attrib.u.v6.dst_addr_mask[0] = ~0;
		flt_rule.rule.attrib.u.v6.dst_addr_mask[1] = ~0;
		flt_rule.rule.attrib.u.v6.dst_addr_mask[2] = ~0;
		flt_rule.rule.attrib.u.v6.dst_addr_mask[3] = ~0;


		memcpy(&(pFilteringTable->rules[0]), &flt_rule, sizeof(struct ipa_flt_rule_mdfy));
		if (false == m_filtering.ModifyFilteringRule(pFilteringTable))
		{
			IPACMERR("Error modifying filtering rule.\n");
			res = IPACM_FAILURE;
			goto fail;
		}
		else
		{
			IPACMDBG_H("Flt rule reset to dummy, hdl: 0x%x, status: %d\n", pFilteringTable->rules[0].rule_hdl,
						pFilteringTable->rules[0].status);
		}
	}
	else
	{
		IPACMERR("IP type is not expected.\n");
		res = IPACM_FAILURE;
		goto fail;
	}

fail:
	free(pFilteringTable);
	return res;
}

void IPACM_Lan::post_del_self_evt()
{
	ipacm_cmd_q_data evt;
	ipacm_event_data_fid* fid;
	fid = (ipacm_event_data_fid*)malloc(sizeof(ipacm_event_data_fid));
	if(fid == NULL)
	{
		IPACMERR("Failed to allocate fid memory.\n");
		return;
	}
	memset(fid, 0, sizeof(ipacm_event_data_fid));
	memset(&evt, 0, sizeof(ipacm_cmd_q_data));

	fid->if_index = ipa_if_num;

	evt.evt_data = (void*)fid;
	evt.event = IPA_LAN_DELETE_SELF;

	IPACMDBG_H("Posting event IPA_LAN_DELETE_SELF\n");
	IPACM_EvtDispatcher::PostEvt(&evt);
}

/*handle reset usb-client rt-rules */
int IPACM_Lan::handle_lan_client_reset_rt(ipa_ip_type iptype)
{
	uint32_t i;
	int res = IPACM_SUCCESS;

	/* clean eth-client routing rules */
	IPACMDBG_H("left %d eth clients need to be deleted \n ", num_eth_client);
	for (i = 0; i < num_eth_client; i++)
	{
		res = delete_eth_rtrules(i, iptype);
		if (res != IPACM_SUCCESS)
		{
			IPACMERR("Failed to delete old iptype(%d) rules.\n", iptype);
			return res;
		}
	} /* end of for loop */

	/* Reset ip-address */
	for (i = 0; i < num_eth_client; i++)
	{
		if(iptype == IPA_IP_v4)
		{
			get_client_memptr(eth_client, i)->ipv4_set = false;
		}
		else
		{
			get_client_memptr(eth_client, i)->ipv6_set = 0;
		}
	} /* end of for loop */
	return res;
}

int IPACM_Lan::install_ipv4_icmp_flt_rule()
{
	int len;
	struct ipa_ioc_add_flt_rule* flt_rule;
	struct ipa_flt_rule_add flt_rule_entry;
	bool result;

	if(rx_prop != NULL)
	{
		len = sizeof(struct ipa_ioc_add_flt_rule) + sizeof(struct ipa_flt_rule_add);

		flt_rule = (struct ipa_ioc_add_flt_rule *)calloc(1, len);
		if (!flt_rule)
		{
			IPACMERR("Error Locate ipa_flt_rule_add memory...\n");
			return IPACM_FAILURE;
		}

		flt_rule->commit = 1;
		flt_rule->ep = rx_prop->rx[0].src_pipe;
		flt_rule->global = false;
		flt_rule->ip = IPA_IP_v4;
		flt_rule->num_rules = 1;

		memset(&flt_rule_entry, 0, sizeof(struct ipa_flt_rule_add));

		flt_rule_entry.rule.retain_hdr = 1;
		flt_rule_entry.rule.to_uc = 0;
		flt_rule_entry.rule.eq_attrib_type = 0;
		flt_rule_entry.at_rear = true;
		flt_rule_entry.flt_rule_hdl = -1;
		flt_rule_entry.status = -1;
		flt_rule_entry.rule.action = IPA_PASS_TO_EXCEPTION;
		if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
			flt_rule_entry.rule.hashable = true;
		memcpy(&flt_rule_entry.rule.attrib, &rx_prop->rx[0].attrib, sizeof(flt_rule_entry.rule.attrib));

		flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_PROTOCOL;
		flt_rule_entry.rule.attrib.u.v4.protocol = (uint8_t)IPACM_FIREWALL_IPPROTO_ICMP;
		memcpy(&(flt_rule->rules[0]), &flt_rule_entry, sizeof(struct ipa_flt_rule_add));

#ifdef IPA_IOCTL_SET_FNR_COUNTER_INFO
		/* use index hw-counter */
		if(ipa_if_cate == WLAN_IF && IPACM_Iface::ipacmcfg->hw_fnr_stats_support)
		{
			IPACMDBG_H("hw-index-enable %d, counter %d\n", IPACM_Iface::ipacmcfg->hw_fnr_stats_support, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
			result = m_filtering.AddFilteringRule_hw_index(flt_rule, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
		} else {
			result = m_filtering.AddFilteringRule(flt_rule);
		}
#else
		result = m_filtering.AddFilteringRule(flt_rule);
#endif

		if (result == false)
		{
			IPACMERR("Error Adding Filtering rule, aborting...\n");
			free(flt_rule);
			return IPACM_FAILURE;
		}
		else
		{
			IPACM_Iface::ipacmcfg->increaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v4, 1);
			ipv4_icmp_flt_rule_hdl[0] = flt_rule->rules[0].flt_rule_hdl;
			IPACMDBG_H("IPv4 icmp filter rule HDL:0x%x\n", ipv4_icmp_flt_rule_hdl[0]);
                        free(flt_rule);
		}
	}
	return IPACM_SUCCESS;
}

int IPACM_Lan::install_ipv6_icmp_flt_rule()
{

	int len;
	struct ipa_ioc_add_flt_rule* flt_rule;
	struct ipa_flt_rule_add flt_rule_entry;
	bool result;

	if(rx_prop != NULL)
	{
		len = sizeof(struct ipa_ioc_add_flt_rule) + sizeof(struct ipa_flt_rule_add);

		flt_rule = (struct ipa_ioc_add_flt_rule *)calloc(1, len);
		if (!flt_rule)
		{
			IPACMERR("Error Locate ipa_flt_rule_add memory...\n");
			return IPACM_FAILURE;
		}

		flt_rule->commit = 1;
		flt_rule->ep = rx_prop->rx[0].src_pipe;
		flt_rule->global = false;
		flt_rule->ip = IPA_IP_v6;
		flt_rule->num_rules = 1;

		memset(&flt_rule_entry, 0, sizeof(struct ipa_flt_rule_add));

		flt_rule_entry.rule.retain_hdr = 1;
		flt_rule_entry.rule.to_uc = 0;
		flt_rule_entry.rule.eq_attrib_type = 0;
		flt_rule_entry.at_rear = true;
		flt_rule_entry.flt_rule_hdl = -1;
		flt_rule_entry.status = -1;
		flt_rule_entry.rule.action = IPA_PASS_TO_EXCEPTION;
		if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
			flt_rule_entry.rule.hashable = false;
		memcpy(&flt_rule_entry.rule.attrib, &rx_prop->rx[0].attrib, sizeof(flt_rule_entry.rule.attrib));
		flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_NEXT_HDR;
		flt_rule_entry.rule.attrib.u.v6.next_hdr = (uint8_t)IPACM_FIREWALL_IPPROTO_ICMP6;
		memcpy(&(flt_rule->rules[0]), &flt_rule_entry, sizeof(struct ipa_flt_rule_add));

#ifdef IPA_IOCTL_SET_FNR_COUNTER_INFO
		/* use index hw-counter */
		if(ipa_if_cate == WLAN_IF && IPACM_Iface::ipacmcfg->hw_fnr_stats_support)
		{
			IPACMDBG_H("hw-index-enable %d, counter %d\n", IPACM_Iface::ipacmcfg->hw_fnr_stats_support, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
			result = m_filtering.AddFilteringRule_hw_index(flt_rule, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
		} else {
			result = m_filtering.AddFilteringRule(flt_rule);
		}
#else
		result = m_filtering.AddFilteringRule(flt_rule);
#endif

		if (result == false)
		{
			IPACMERR("Error Adding Filtering rule, aborting...\n");
			free(flt_rule);
			return IPACM_FAILURE;
		}
		else
		{
			IPACM_Iface::ipacmcfg->increaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v6, 1);
			ipv6_icmp_flt_rule_hdl[0] = flt_rule->rules[0].flt_rule_hdl;
			IPACMDBG_H("IPv6 icmp filter rule HDL:0x%x\n", ipv6_icmp_flt_rule_hdl[0]);
			free(flt_rule);
		}
	}
	return IPACM_SUCCESS;
}

int IPACM_Lan::add_dummy_private_subnet_flt_rule(ipa_ip_type iptype)
{
	if(rx_prop == NULL)
	{
		IPACMDBG_H("There is no rx_prop for iface %s, not able to add dummy private subnet filtering rule.\n", dev_name);
		return 0;
	}

	if(iptype == IPA_IP_v6)
	{
		IPACMDBG_H("There is no ipv6 dummy filter rules needed for iface %s\n", dev_name);
		return 0;
	}
	int i, len, res = IPACM_SUCCESS;
	struct ipa_flt_rule_add flt_rule;
	ipa_ioc_add_flt_rule* pFilteringTable;
	bool result;

	len = sizeof(struct ipa_ioc_add_flt_rule) + (IPA_MAX_PRIVATE_SUBNET_ENTRIES + IPA_MAX_MTU_ENTRIES) * sizeof(struct ipa_flt_rule_add);

	pFilteringTable = (struct ipa_ioc_add_flt_rule *)malloc(len);
	if (pFilteringTable == NULL)
	{
		IPACMERR("Error allocate flt table memory...\n");
		return IPACM_FAILURE;
	}
	memset(pFilteringTable, 0, len);

	pFilteringTable->commit = 1;
	pFilteringTable->ep = rx_prop->rx[0].src_pipe;
	pFilteringTable->global = false;
	pFilteringTable->ip = iptype;
	pFilteringTable->num_rules = IPA_MAX_PRIVATE_SUBNET_ENTRIES + IPA_MAX_MTU_ENTRIES;

	memset(&flt_rule, 0, sizeof(struct ipa_flt_rule_add));

	flt_rule.rule.retain_hdr = 0;
	flt_rule.at_rear = true;
	flt_rule.flt_rule_hdl = -1;
	flt_rule.status = -1;
	flt_rule.rule.action = IPA_PASS_TO_EXCEPTION;
	if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
		flt_rule.rule.hashable = true;
	memcpy(&flt_rule.rule.attrib, &rx_prop->rx[0].attrib,
			sizeof(flt_rule.rule.attrib));

	if(iptype == IPA_IP_v4)
	{
		flt_rule.rule.attrib.attrib_mask = IPA_FLT_SRC_ADDR | IPA_FLT_DST_ADDR;
		flt_rule.rule.attrib.u.v4.src_addr_mask = ~0;
		flt_rule.rule.attrib.u.v4.src_addr = ~0;
		flt_rule.rule.attrib.u.v4.dst_addr_mask = ~0;
		flt_rule.rule.attrib.u.v4.dst_addr = ~0;

		for(i=0; i<IPA_MAX_PRIVATE_SUBNET_ENTRIES + IPA_MAX_MTU_ENTRIES; i++)
		{
			memcpy(&(pFilteringTable->rules[i]), &flt_rule, sizeof(struct ipa_flt_rule_add));
		}

#ifdef IPA_IOCTL_SET_FNR_COUNTER_INFO
		/* use index hw-counter */
		if(ipa_if_cate == WLAN_IF && IPACM_Iface::ipacmcfg->hw_fnr_stats_support)
		{
			IPACMDBG_H("hw-index-enable %d, counter %d\n", IPACM_Iface::ipacmcfg->hw_fnr_stats_support, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
			result = m_filtering.AddFilteringRule_hw_index(pFilteringTable, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
		} else {
			result = m_filtering.AddFilteringRule(pFilteringTable);
		}
#else
		result = m_filtering.AddFilteringRule(pFilteringTable);
#endif

		if (result == false)
		{
			IPACMERR("Error adding dummy private subnet v4 flt rule\n");
			res = IPACM_FAILURE;
			goto fail;
		}
		else
		{
			IPACM_Iface::ipacmcfg->increaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v4, IPA_MAX_PRIVATE_SUBNET_ENTRIES + IPA_MAX_MTU_ENTRIES);
			/* copy filter rule hdls */
			for (int i = 0; i < IPA_MAX_PRIVATE_SUBNET_ENTRIES + IPA_MAX_MTU_ENTRIES; i++)
			{
				if (pFilteringTable->rules[i].status == 0)
				{
					private_fl_rule_hdl[i] = pFilteringTable->rules[i].flt_rule_hdl;
					IPACMDBG_H("Private subnet v4 flt rule %d hdl:0x%x\n", i, private_fl_rule_hdl[i]);
				}
				else
				{
					IPACMERR("Failed adding lan2lan v4 flt rule %d\n", i);
					res = IPACM_FAILURE;
					goto fail;
				}
			}
		}
	}
fail:
	free(pFilteringTable);
	return res;
}

int IPACM_Lan::handle_private_subnet_android(ipa_ip_type iptype)
{
	int i, len, res = IPACM_SUCCESS;
	struct ipa_flt_rule_mdfy flt_rule;
	struct ipa_ioc_mdfy_flt_rule* pFilteringTable;
	int mtu_rule_cnt = 0;
	uint16_t mtu[IPA_MAX_PRIVATE_SUBNET_ENTRIES + IPA_MAX_MTU_ENTRIES] = { };
	int mtu_rule_idx = IPACM_Iface::ipacmcfg->ipa_num_private_subnet;

	if (rx_prop == NULL)
	{
		IPACMDBG_H("No rx properties registered for iface %s\n", dev_name);
		return IPACM_SUCCESS;
	}

	if(iptype == IPA_IP_v6)
	{
		IPACMDBG_H("There is no ipv6 dummy filter rules needed for iface %s\n", dev_name);
		return 0;
	}
	else
	{
		for(i=0; i<IPA_MAX_PRIVATE_SUBNET_ENTRIES + IPA_MAX_MTU_ENTRIES; i++)
		{
			reset_to_dummy_flt_rule(IPA_IP_v4, private_fl_rule_hdl[i]);
		}

		/* check how many MTU rules we need to add */
		for(i = 0; i < IPACM_Iface::ipacmcfg->ipa_num_private_subnet; i++)
		{
			mtu[i] = IPACM_Wan::queryMTU(ipa_if_num, IPA_IP_v4);

			if (mtu[i] > 0)
			{
				mtu_rule_cnt++;
				IPACMDBG_H("MTU[%d] is %d\n", i, mtu[i]);
			}
			else
			{
				IPACMERR("MTU is 0");
			}
		}
		IPACMDBG_H("total %d MTU rules are needed\n", mtu_rule_cnt);

		len = sizeof(struct ipa_ioc_mdfy_flt_rule) + (IPACM_Iface::ipacmcfg->ipa_num_private_subnet + mtu_rule_cnt) * sizeof(struct ipa_flt_rule_mdfy);
		pFilteringTable = (struct ipa_ioc_mdfy_flt_rule*)malloc(len);
		if (!pFilteringTable)
		{
			IPACMERR("Failed to allocate ipa_ioc_mdfy_flt_rule memory...\n");
			return IPACM_FAILURE;
		}
		memset(pFilteringTable, 0, len);

		pFilteringTable->commit = 1;
		pFilteringTable->ip = iptype;
		pFilteringTable->num_rules = (uint8_t)IPACM_Iface::ipacmcfg->ipa_num_private_subnet + mtu_rule_cnt;

		/* Make LAN-traffic always go A5, use default IPA-RT table */
		if (false == m_routing.GetRoutingTable(&IPACM_Iface::ipacmcfg->rt_tbl_default_v4))
		{
			IPACMERR("Failed to get routing table handle.\n");
			res = IPACM_FAILURE;
			goto fail;
		}

		memset(&flt_rule, 0, sizeof(struct ipa_flt_rule_mdfy));
		flt_rule.status = -1;

		flt_rule.rule.retain_hdr = 1;
		flt_rule.rule.to_uc = 0;
		IPACMDBG_H("Private filter rule use table: %s\n",IPACM_Iface::ipacmcfg->rt_tbl_default_v4.name);

		for (i = 0; i < (IPACM_Iface::ipacmcfg->ipa_num_private_subnet); i++)
		{
			/* add private subnet rule for ipv4 */
			/* these 3 properties below will be reset during construct_mtu_rule */
			flt_rule.rule.action = IPA_PASS_TO_ROUTING;
			flt_rule.rule.eq_attrib_type = 0;
			flt_rule.rule.rt_tbl_hdl = IPACM_Iface::ipacmcfg->rt_tbl_default_v4.hdl;

			flt_rule.rule_hdl = private_fl_rule_hdl[i];
			memcpy(&flt_rule.rule.attrib, &rx_prop->rx[0].attrib, sizeof(flt_rule.rule.attrib));
			flt_rule.rule.attrib.attrib_mask |= IPA_FLT_DST_ADDR;
			flt_rule.rule.attrib.u.v4.dst_addr_mask = IPACM_Iface::ipacmcfg->private_subnet_table[i].subnet_mask;
			flt_rule.rule.attrib.u.v4.dst_addr = IPACM_Iface::ipacmcfg->private_subnet_table[i].subnet_addr;
			memcpy(&(pFilteringTable->rules[i]), &flt_rule, sizeof(struct ipa_flt_rule_mdfy));
			IPACMDBG_H(" IPACM private subnet_addr as: 0x%x entry(%d)\n", flt_rule.rule.attrib.u.v4.dst_addr, i);

			/* add corresponding MTU rule for ipv4 */
			if (mtu[i] > 0)
			{
				flt_rule.rule_hdl = private_fl_rule_hdl[mtu_rule_idx + i];
				memcpy(&flt_rule.rule.attrib, &rx_prop->rx[0].attrib, sizeof(flt_rule.rule.attrib));
				flt_rule.rule.attrib.u.v4.src_addr_mask = IPACM_Iface::ipacmcfg->private_subnet_table[i].subnet_mask;
				flt_rule.rule.attrib.u.v4.src_addr = IPACM_Iface::ipacmcfg->private_subnet_table[i].subnet_addr;
				flt_rule.rule.attrib.attrib_mask |= IPA_FLT_SRC_ADDR;
				if (construct_mtu_rule(&flt_rule.rule, IPA_IP_v4, mtu[i]))
				{
					IPACMERR("Failed to modify MTU filtering rule.\n");
				}
				memcpy(&(pFilteringTable->rules[mtu_rule_idx + i]), &flt_rule, sizeof(struct ipa_flt_rule_mdfy));
				IPACMDBG_H("Adding MTU rule for private subnet 0x%x.\n", flt_rule.rule.attrib.u.v4.src_addr);
			}
		}

		if (false == m_filtering.ModifyFilteringRule(pFilteringTable))
		{
			IPACMERR("Failed to modify private subnet filtering rules.\n");
			res = IPACM_FAILURE;
			goto fail;
		}
	}
fail:
	if(pFilteringTable != NULL)
	{
		free(pFilteringTable);
	}
	return res;
}

int IPACM_Lan::install_ipv6_prefix_flt_rule(uint32_t* prefix)
{
	if(prefix == NULL)
	{
		IPACMERR("IPv6 prefix is empty.\n");
		return IPACM_FAILURE;
	}
	IPACMDBG_H("Receive IPv6 prefix: 0x%08x%08x.\n", prefix[0], prefix[1]);

	int len;
	struct ipa_ioc_add_flt_rule* flt_rule;
	struct ipa_flt_rule_add flt_rule_entry;
	bool result;
	int rule_cnt = 1;

	uint16_t mtu = IPACM_Wan::queryMTU(ipa_if_num, IPA_IP_v6);
	if (mtu > 0)
	{
		IPACMDBG_H("MTU is %d\n", mtu);
		rule_cnt ++;
	}
	else
	{
		IPACMERR("MTU is 0");
	}

	if(rx_prop != NULL)
	{
		len = sizeof(struct ipa_ioc_add_flt_rule) + rule_cnt * sizeof(struct ipa_flt_rule_add);

		flt_rule = (struct ipa_ioc_add_flt_rule *)calloc(rule_cnt, len);
		if (!flt_rule)
		{
			IPACMERR("Error Locate ipa_flt_rule_add memory...\n");
			return IPACM_FAILURE;
		}

		flt_rule->commit = 1;
		flt_rule->ep = rx_prop->rx[0].src_pipe;
		flt_rule->global = false;
		flt_rule->ip = IPA_IP_v6;
		flt_rule->num_rules = rule_cnt;

		memset(&flt_rule_entry, 0, sizeof(struct ipa_flt_rule_add));

		flt_rule_entry.rule.retain_hdr = 1;
		flt_rule_entry.rule.to_uc = 0;
		flt_rule_entry.rule.eq_attrib_type = 0;
		flt_rule_entry.at_rear = true;
		flt_rule_entry.flt_rule_hdl = -1;
		flt_rule_entry.status = -1;
		flt_rule_entry.rule.action = IPA_PASS_TO_EXCEPTION;
		if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
			flt_rule_entry.rule.hashable = true;
		memcpy(&flt_rule_entry.rule.attrib, &rx_prop->rx[0].attrib, sizeof(flt_rule_entry.rule.attrib));
		flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_DST_ADDR;
		flt_rule_entry.rule.attrib.u.v6.dst_addr[0] = prefix[0];
		flt_rule_entry.rule.attrib.u.v6.dst_addr[1] = prefix[1];
		flt_rule_entry.rule.attrib.u.v6.dst_addr[2] = 0x0;
		flt_rule_entry.rule.attrib.u.v6.dst_addr[3] = 0x0;
		flt_rule_entry.rule.attrib.u.v6.dst_addr_mask[0] = 0xFFFFFFFF;
		flt_rule_entry.rule.attrib.u.v6.dst_addr_mask[1] = 0xFFFFFFFF;
		flt_rule_entry.rule.attrib.u.v6.dst_addr_mask[2] = 0x0;
		flt_rule_entry.rule.attrib.u.v6.dst_addr_mask[3] = 0x0;
		memcpy(&(flt_rule->rules[0]), &flt_rule_entry, sizeof(struct ipa_flt_rule_add));

		memcpy(&flt_rule_entry.rule.attrib, &rx_prop->rx[0].attrib, sizeof(flt_rule_entry.rule.attrib)); // this will remove the IPA_FLT_DST_ADDR
		flt_rule_entry.rule.attrib.u.v6.src_addr[3] = prefix[0];
		flt_rule_entry.rule.attrib.u.v6.src_addr[2] = prefix[1];
		flt_rule_entry.rule.attrib.u.v6.src_addr[1] = 0x0;
		flt_rule_entry.rule.attrib.u.v6.src_addr[0] = 0x0;
		flt_rule_entry.rule.attrib.u.v6.src_addr_mask[3] = 0xFFFFFFFF;
		flt_rule_entry.rule.attrib.u.v6.src_addr_mask[2] = 0xFFFFFFFF;
		flt_rule_entry.rule.attrib.u.v6.src_addr_mask[1] = 0x0;
		flt_rule_entry.rule.attrib.u.v6.src_addr_mask[0] = 0x0;
		flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_SRC_ADDR;

		/* Add an MTU rule with every new private prefix */
		if (mtu > 0)
		{
			if (construct_mtu_rule(&flt_rule_entry.rule, IPA_IP_v6, mtu))
			{
				IPACMERR("Failed to add MTU filtering rule.\n")
			}
			else
			{
				memcpy(&(flt_rule->rules[1]), &flt_rule_entry, sizeof(struct ipa_flt_rule_add));
			}
		}

#ifdef IPA_IOCTL_SET_FNR_COUNTER_INFO
		/* use index hw-counter */
		if(ipa_if_cate == WLAN_IF && IPACM_Iface::ipacmcfg->hw_fnr_stats_support)
		{
			IPACMDBG_H("hw-index-enable %d, counter %d\n", IPACM_Iface::ipacmcfg->hw_fnr_stats_support, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
			result = m_filtering.AddFilteringRule_hw_index(flt_rule, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
		} else {
			result = m_filtering.AddFilteringRule(flt_rule);
		}
#else
		result = m_filtering.AddFilteringRule(flt_rule);
#endif

		if (result == false)
		{
			IPACMERR("Error Adding Filtering rule, aborting...\n");
			free(flt_rule);
			return IPACM_FAILURE;
		}
		else
		{
			IPACM_Iface::ipacmcfg->increaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v6, 2);
			ipv6_prefix_flt_rule_hdl[0] = flt_rule->rules[0].flt_rule_hdl;
			IPACMDBG_H("IPv6 prefix filter rule HDL:0x%x\n", ipv6_prefix_flt_rule_hdl[0]);
			if (rule_cnt > 1)
			{
				ipv6_prefix_flt_rule_hdl[1] = flt_rule->rules[1].flt_rule_hdl;
				IPACMDBG_H("IPv6 prefix MTU filter rule HDL:0x%x\n", ipv6_prefix_flt_rule_hdl[1]);
			}
			free(flt_rule);
		}
	}
	return IPACM_SUCCESS;
}

void IPACM_Lan::delete_ipv6_prefix_flt_rule()
{
	if(m_filtering.DeleteFilteringHdls(ipv6_prefix_flt_rule_hdl, IPA_IP_v6, NUM_IPV6_PREFIX_FLT_RULE + NUM_IPV6_PREFIX_MTU_RULE) == false)
	{
		IPACMERR("Failed to delete ipv6 prefix flt rules.\n");
		return;
	}
	IPACM_Iface::ipacmcfg->decreaseFltRuleCount(rx_prop->rx[0].src_pipe, IPA_IP_v6, NUM_IPV6_PREFIX_FLT_RULE + NUM_IPV6_PREFIX_MTU_RULE);
	return;
}

int IPACM_Lan::handle_addr_evt_odu_bridge(ipacm_event_data_addr* data)
{
	int fd, res = IPACM_SUCCESS;
	struct in6_addr ipv6_addr;
	if(data == NULL)
	{
		IPACMERR("Failed to get interface IP address.\n");
		return IPACM_FAILURE;
	}

	if(data->iptype == IPA_IP_v6)
	{
		fd = open(IPACM_Iface::ipacmcfg->DEVICE_NAME_ODU, O_RDWR);
		if(fd == 0)
		{
			IPACMERR("Failed to open %s.\n", IPACM_Iface::ipacmcfg->DEVICE_NAME_ODU);
			return IPACM_FAILURE;
		}

		memcpy(&ipv6_addr, data->ipv6_addr, sizeof(struct in6_addr));

		if( ioctl(fd, ODU_BRIDGE_IOC_SET_LLV6_ADDR, &ipv6_addr) )
		{
			IPACMERR("Failed to write IPv6 address to odu driver.\n");
			res = IPACM_FAILURE;
		}
		num_dft_rt_v6++;
		close(fd);
	}

	return res;
}

ipa_hdr_proc_type IPACM_Lan::eth_bridge_get_hdr_proc_type(ipa_hdr_l2_type t1, ipa_hdr_l2_type t2)
{
	if(t1 == IPA_HDR_L2_ETHERNET_II)
	{
		if(t2 == IPA_HDR_L2_ETHERNET_II)
		{
			return IPA_HDR_PROC_ETHII_TO_ETHII;
		}
		if(t2 == IPA_HDR_L2_802_3)
		{
			return IPA_HDR_PROC_ETHII_TO_802_3;
		}
	}

	if(t1 == IPA_HDR_L2_802_3)
	{
		if(t2 == IPA_HDR_L2_ETHERNET_II)
		{
			return IPA_HDR_PROC_802_3_TO_ETHII;
		}
		if(t2 == IPA_HDR_L2_802_3)
		{
			return IPA_HDR_PROC_802_3_TO_802_3;
		}
	}

	return IPA_HDR_PROC_NONE;
}

int IPACM_Lan::eth_bridge_get_hdr_template_hdl(uint32_t* hdr_hdl)
{
	if(hdr_hdl == NULL)
	{
		IPACMDBG_H("Hdr handle pointer is empty.\n");
		return IPACM_FAILURE;
	}

	struct ipa_ioc_get_hdr hdr;
	memset(&hdr, 0, sizeof(hdr));

	memcpy(hdr.name, tx_prop->tx[0].hdr_name, sizeof(hdr.name));
	if(m_header.GetHeaderHandle(&hdr) == false)
	{
		IPACMERR("Failed to get template hdr hdl.\n");
		return IPACM_FAILURE;
	}

	*hdr_hdl = hdr.hdl;
	return IPACM_SUCCESS;
}

int IPACM_Lan::handle_cradle_wan_mode_switch(bool is_wan_bridge_mode)
{
	struct ipa_flt_rule_mdfy flt_rule_entry;
	int len = 0;
	ipa_ioc_mdfy_flt_rule *m_pFilteringTable;

	IPACMDBG_H("Handle wan mode swtich: is wan bridge mode?%d\n", is_wan_bridge_mode);

	if (rx_prop == NULL)
	{
		IPACMDBG_H("No rx properties registered for iface %s\n", dev_name);
		return IPACM_SUCCESS;
	}

	len = sizeof(struct ipa_ioc_mdfy_flt_rule) + (1 * sizeof(struct ipa_flt_rule_mdfy));
	m_pFilteringTable = (struct ipa_ioc_mdfy_flt_rule *)calloc(1, len);
	if (m_pFilteringTable == NULL)
	{
		PERROR("Error Locate ipa_ioc_mdfy_flt_rule memory...\n");
		return IPACM_FAILURE;
	}

	m_pFilteringTable->commit = 1;
	m_pFilteringTable->ip = IPA_IP_v4;
	m_pFilteringTable->num_rules = (uint8_t)1;

	IPACMDBG_H("Retrieving routing hanle for table: %s\n",
					 IPACM_Iface::ipacmcfg->rt_tbl_wan_v4.name);
	if (false == m_routing.GetRoutingTable(&IPACM_Iface::ipacmcfg->rt_tbl_wan_v4))
	{
		IPACMERR("m_routing.GetRoutingTable(&IPACM_Iface::ipacmcfg->rt_tbl_wan_v4=0x%p) Failed.\n",
						 &IPACM_Iface::ipacmcfg->rt_tbl_wan_v4);
		free(m_pFilteringTable);
		return IPACM_FAILURE;
	}
	IPACMDBG_H("Routing handle for table: %d\n", IPACM_Iface::ipacmcfg->rt_tbl_wan_v4.hdl);


	memset(&flt_rule_entry, 0, sizeof(struct ipa_flt_rule_mdfy)); // Zero All Fields
	flt_rule_entry.status = -1;
	flt_rule_entry.rule_hdl = lan_wan_fl_rule_hdl[0];

	flt_rule_entry.rule.retain_hdr = 0;
	flt_rule_entry.rule.to_uc = 0;
	flt_rule_entry.rule.eq_attrib_type = 0;
	if(is_wan_bridge_mode)
	{
		flt_rule_entry.rule.action = IPA_PASS_TO_ROUTING;
	}
	else
	{
		flt_rule_entry.rule.action = IPA_PASS_TO_SRC_NAT;
	}
	flt_rule_entry.rule.rt_tbl_hdl = IPACM_Iface::ipacmcfg->rt_tbl_wan_v4.hdl;

	memcpy(&flt_rule_entry.rule.attrib,
				 &rx_prop->rx[0].attrib,
				 sizeof(flt_rule_entry.rule.attrib));

	flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_DST_ADDR;
	flt_rule_entry.rule.attrib.u.v4.dst_addr_mask = 0x0;
	flt_rule_entry.rule.attrib.u.v4.dst_addr = 0x0;

	memcpy(&m_pFilteringTable->rules[0], &flt_rule_entry, sizeof(flt_rule_entry));
	if (false == m_filtering.ModifyFilteringRule(m_pFilteringTable))
	{
		IPACMERR("Error Modifying RuleTable(0) to Filtering, aborting...\n");
		free(m_pFilteringTable);
		return IPACM_FAILURE;
	}
	else
	{
		IPACMDBG_H("flt rule hdl = %d, status = %d\n",
						 m_pFilteringTable->rules[0].rule_hdl,
						 m_pFilteringTable->rules[0].status);
	}
	free(m_pFilteringTable);
	return IPACM_SUCCESS;
}

/*handle reset usb-client rt-rules */
int IPACM_Lan::handle_tethering_stats_event(ipa_get_data_stats_resp_msg_v01 *data)
{
	int fd;
	uint32_t pipe_len, cnt;
	uint64_t num_ul_packets, num_ul_bytes;
	uint64_t num_dl_packets, num_dl_bytes;
	bool ul_pipe_found, dl_pipe_found;
	FILE *fp = NULL;

	fd = open(IPA_DEVICE_NAME, O_RDWR);
	if (fd < 0)
	{
		IPACMERR("Failed opening %s.\n", IPA_DEVICE_NAME);
		return IPACM_FAILURE;
	}


	ul_pipe_found = false;
	dl_pipe_found = false;
	num_ul_packets = 0;
	num_dl_packets = 0;
	num_ul_bytes = 0;
	num_dl_bytes = 0;

	if (data->dl_dst_pipe_stats_list_valid)
	{
		if(tx_prop != NULL)
		{
			for (pipe_len = 0; pipe_len < data->dl_dst_pipe_stats_list_len; pipe_len++)
			{
				IPACMDBG_H("Check entry(%d) dl_dst_pipe(%d)\n", pipe_len, data->dl_dst_pipe_stats_list[pipe_len].pipe_index);
				for (cnt=0; cnt<tx_prop->num_tx_props; cnt++)
				{
					IPACMDBG_H("Check Tx_prop_entry(%d) pipe(%d)\n", cnt, ioctl(fd, IPA_IOC_QUERY_EP_MAPPING, tx_prop->tx[cnt].dst_pipe));
					if(ioctl(fd, IPA_IOC_QUERY_EP_MAPPING, tx_prop->tx[cnt].dst_pipe) == (int)data->dl_dst_pipe_stats_list[pipe_len].pipe_index)
					{
						/* update the DL stats */
						dl_pipe_found = true;
						num_dl_packets += data->dl_dst_pipe_stats_list[pipe_len].num_ipv4_packets;
						num_dl_packets += data->dl_dst_pipe_stats_list[pipe_len].num_ipv6_packets;
						num_dl_bytes += data->dl_dst_pipe_stats_list[pipe_len].num_ipv4_bytes;
						num_dl_bytes += data->dl_dst_pipe_stats_list[pipe_len].num_ipv6_bytes;
						IPACMDBG_H("Got matched dst-pipe (%d) from %d tx props\n", data->dl_dst_pipe_stats_list[pipe_len].pipe_index, cnt);
						IPACMDBG_H("DL_packets:(%llu) DL_bytes:(%llu) \n", (long long)num_dl_packets, (long long)num_dl_bytes);
						break;
					}
				}
			}
		}
	}

	if (data->ul_src_pipe_stats_list_valid)
	{
		if(rx_prop != NULL)
		{
			for (pipe_len = 0; pipe_len < data->ul_src_pipe_stats_list_len; pipe_len++)
			{
				IPACMDBG_H("Check entry(%d) dl_dst_pipe(%d)\n", pipe_len, data->ul_src_pipe_stats_list[pipe_len].pipe_index);
				for (cnt=0; cnt < rx_prop->num_rx_props; cnt++)
				{
					IPACMDBG_H("Check Rx_prop_entry(%d) pipe(%d)\n", cnt, ioctl(fd, IPA_IOC_QUERY_EP_MAPPING, rx_prop->rx[cnt].src_pipe));
					//Typecasting to avoid -Wall -Werror errors
					if(ioctl(fd, IPA_IOC_QUERY_EP_MAPPING, rx_prop->rx[cnt].src_pipe) == (int)data->ul_src_pipe_stats_list[pipe_len].pipe_index)
					{
						/* update the UL stats */
						ul_pipe_found = true;
						num_ul_packets += data->ul_src_pipe_stats_list[pipe_len].num_ipv4_packets;
						num_ul_packets += data->ul_src_pipe_stats_list[pipe_len].num_ipv6_packets;
						num_ul_bytes += data->ul_src_pipe_stats_list[pipe_len].num_ipv4_bytes;
						num_ul_bytes += data->ul_src_pipe_stats_list[pipe_len].num_ipv6_bytes;
						IPACMDBG_H("Got matched dst-pipe (%d) from %d tx props\n", data->ul_src_pipe_stats_list[pipe_len].pipe_index, cnt);
						IPACMDBG_H("UL_packets:(%llu) UL_bytes:(%llu) \n", (long long)num_ul_packets, (long long)num_ul_bytes);
						break;
					}
				}
			}
		}
	}
	close(fd);

	if (ul_pipe_found || dl_pipe_found)
	{
		IPACMDBG_H("Update IPA_TETHERING_STATS_UPDATE_EVENT, TX(P%llu/B%llu) RX(P%llu/B%llu) DEV(%s) to LTE(%s) \n",
					(long long)num_ul_packets,
						(long long)num_ul_bytes,
							(long long)num_dl_packets,
								(long long)num_dl_bytes,
									dev_name,
										IPACM_Wan::wan_up_dev_name);
		fp = fopen(IPA_PIPE_STATS_FILE_NAME, "w");
		if ( fp == NULL )
		{
			IPACMERR("Failed to write pipe stats to %s, error is %d - %s\n",
					IPA_PIPE_STATS_FILE_NAME, errno, strerror(errno));
			return IPACM_FAILURE;
		}

		fprintf(fp, PIPE_STATS,
				dev_name,
					IPACM_Wan::wan_up_dev_name,
						(long long)num_ul_bytes,
						(long long)num_ul_packets,
							    (long long)num_dl_bytes,
							(long long)num_dl_packets);
		fclose(fp);
	}
	return IPACM_SUCCESS;
}

int IPACM_Lan::set_client_pipe(enum ipa_client_type client, uint32_t *pipe)
{
	int fd;

	fd = open(IPA_DEVICE_NAME, O_RDWR);
	if(fd < 0)
	{
		IPACMERR("Failed opening %s.\n", IPA_DEVICE_NAME);
		return IPACM_FAILURE;
	}

	*pipe = ioctl(fd, IPA_IOC_QUERY_EP_MAPPING, client);

	close(fd);
	return IPACM_SUCCESS;
}

int IPACM_Lan::set_tether_client_wigig(wan_ioctl_set_tether_client_pipe *tether_client)
{
#define NUM_WIGIG_TX_PIPES 4

	uint32_t cnt;
	int ret;
	int fd_wwan_ioctl = open(WWAN_QMI_IOCTL_DEVICE_NAME, O_RDWR);

	if(fd_wwan_ioctl < 0)
	{
		IPACMERR("Failed to open %s.\n", WWAN_QMI_IOCTL_DEVICE_NAME);
		return IPACM_FAILURE;
	}

	if(!tx_prop || !rx_prop)
	{
		IPACMERR("no props, can't set client %p, %p\n", rx_prop, tx_prop);
		close(fd_wwan_ioctl);
		return IPACM_FAILURE;
	}

	/* only one rx pipe for wigig */
	tether_client->ul_src_pipe_len = rx_prop->num_rx_props;
	for(cnt = 0; cnt < rx_prop->num_rx_props; cnt++)
	{
		ret = set_client_pipe(rx_prop->rx[cnt].src_pipe, &tether_client->ul_src_pipe_list[cnt]);
		if(ret)
		{
			close(fd_wwan_ioctl);
			return ret;
		}
		IPACMDBG_H("Rx(%d), src_pipe: %d, ipa_pipe: %d\n",
			cnt, rx_prop->rx[cnt].src_pipe,
			tether_client->ul_src_pipe_list[cnt]);
	}

	for(int i = 0; i < NUM_WIGIG_TX_PIPES; i++)
	{
		/* 4 tx pipes for wigig */
		tether_client->dl_dst_pipe_len = tx_prop->num_tx_props;

#ifdef IPA_CLIENT_WIGIG4_CONS
		for(cnt = 0; cnt < tx_prop->num_tx_props; cnt++)
		{
			enum ipa_client_type client;

			switch(i) {
				case 0:
					client = IPA_CLIENT_WIGIG1_CONS;
					break;
				case 1:
					client = IPA_CLIENT_WIGIG2_CONS;
					break;
				case 2:
					client = IPA_CLIENT_WIGIG3_CONS;
					break;
				case 3:
					client = IPA_CLIENT_WIGIG4_CONS;
					break;
				default:
					IPACMERR("shouldn't get here\n");
					close(fd_wwan_ioctl);
					return IPACM_FAILURE;
			}
			ret = set_client_pipe(client, &tether_client->dl_dst_pipe_list[cnt]);
			if(ret)
			{
				close(fd_wwan_ioctl);
				return ret;
			}
			IPACMDBG_H("Tx(%d), IPA_CLIENT_WIGIG%d_CONS, ipa_pipe: %d\n",
				cnt, i + 1,
				tether_client->dl_dst_pipe_list[cnt]);
		}
#endif
		ret = ioctl(fd_wwan_ioctl, WAN_IOC_SET_TETHER_CLIENT_PIPE, tether_client);
		if(ret != 0)
		{
			IPACMERR("Failed set tether-client-pipe %p with ret %d\n ", tether_client, ret);
		}
		IPACMDBG("Set wigig tether-client-pipe (%d) %p\n", i, tether_client);
	}

	close(fd_wwan_ioctl);
	return ret;
}

int IPACM_Lan::set_tether_client(wan_ioctl_set_tether_client_pipe *tether_client)
{
	uint32_t cnt;
	int ret;
	int fd_wwan_ioctl = open(WWAN_QMI_IOCTL_DEVICE_NAME, O_RDWR);

	if(fd_wwan_ioctl < 0)
	{
		IPACMERR("Failed to open %s.\n", WWAN_QMI_IOCTL_DEVICE_NAME);
		return IPACM_FAILURE;
	}

	if(tx_prop != NULL)
	{
		tether_client->dl_dst_pipe_len = tx_prop->num_tx_props;
		for(cnt = 0; cnt < tx_prop->num_tx_props; cnt++)
		{
			ret = set_client_pipe(tx_prop->tx[cnt].dst_pipe, &tether_client->dl_dst_pipe_list[cnt]);
			if(ret)
			{
				close(fd_wwan_ioctl);
				return ret;
			}
			IPACMDBG_H("Tx(%d), dst_pipe: %d, ipa_pipe: %d\n",
				cnt, tx_prop->tx[cnt].dst_pipe,
				tether_client->dl_dst_pipe_list[cnt]);
		}
	}

	if(rx_prop != NULL)
	{
		tether_client->ul_src_pipe_len = rx_prop->num_rx_props;
		for(cnt = 0; cnt < rx_prop->num_rx_props; cnt++)
		{
			ret = set_client_pipe(rx_prop->rx[cnt].src_pipe, &tether_client->ul_src_pipe_list[cnt]);
			if(ret)
			{
				close(fd_wwan_ioctl);
				return ret;
			}
			IPACMDBG_H("Rx(%d), src_pipe: %d, ipa_pipe: %d\n",
				cnt, rx_prop->rx[cnt].src_pipe,
				tether_client->ul_src_pipe_list[cnt]);
		}
	}

	ret = ioctl(fd_wwan_ioctl, WAN_IOC_SET_TETHER_CLIENT_PIPE, tether_client);
	if(ret != 0)
	{
		IPACMERR("Failed set tether-client-pipe %p with ret %d\n ", &tether_client, ret);
	}
	IPACMDBG("Set tether-client-pipe %p\n", &tether_client);

	close(fd_wwan_ioctl);
	return ret;
}

/*handle tether client */
int IPACM_Lan::handle_tethering_client(bool reset, ipacm_client_enum ipa_client)
{
	int ret = IPACM_SUCCESS;
	wan_ioctl_set_tether_client_pipe tether_client;

	memset(&tether_client, 0, sizeof(tether_client));
	tether_client.reset_client = reset;
	tether_client.ipa_client = ipa_client;

	/* special case for wigig (11ad) who has 4 Tx and 1 RX pipe */
	if(!strcmp(dev_name, "wigig0"))
	{
		set_tether_client_wigig(&tether_client);
	}
	else
	{
		set_tether_client(&tether_client);
	}

	return ret;
}

/* mac address has to be provided for client related events */
void IPACM_Lan::eth_bridge_post_event(ipa_cm_event_id evt, ipa_ip_type iptype, uint8_t *mac, uint32_t *ipv6_addr, char *iface_name,
	int ep)
{
	ipacm_cmd_q_data eth_bridge_evt;
	ipacm_event_eth_bridge *evt_data_eth_bridge;
	const char *eventName = IPACM_Iface::ipacmcfg->getEventName(evt);
#ifdef FEATURE_L2TP
	ipacm_event_data_all *evt_data_all;
#endif


/* not enable rndis for lan2lan HW-offload due to android limitation */
#ifdef FEATURE_IPA_ANDROID
	if(ipa_if_cate == LAN_IF)
	{
		IPACMDBG_H("This is LAN IF (%s):ipa_index (%d) skip lan2lan events for Android \n", IPACM_Iface::ipacmcfg->iface_table[ipa_if_num].iface_name, ipa_if_num);
		return;
	}
#endif

	if(ipv6_addr)
	{
		IPACMDBG_H("IPv6 addr: %08x:%08x:%08x:%08x \n", ipv6_addr[0],
			ipv6_addr[1], ipv6_addr[2], ipv6_addr[3]);
	}
	memset(&eth_bridge_evt, 0, sizeof(ipacm_cmd_q_data));
	eth_bridge_evt.event = evt;

#ifdef FEATURE_L2TP
	if(evt == IPA_HANDLE_VLAN_CLIENT_INFO || evt == IPA_HANDLE_VLAN_IFACE_INFO)
	{
		evt_data_all = (ipacm_event_data_all*)malloc(sizeof(*evt_data_all));
		if(evt_data_all == NULL)
		{
			IPACMERR("Failed to allocate memory.\n");
			return;
		}
		memset(evt_data_all, 0, sizeof(*evt_data_all));

		if(ipv6_addr)
		{
			IPACMDBG_H("IPv6 addr: %08x:%08x:%08x:%08x \n", ipv6_addr[0],
				ipv6_addr[1], ipv6_addr[2], ipv6_addr[3]);
			memcpy(evt_data_all->ipv6_addr, ipv6_addr, sizeof(evt_data_all->ipv6_addr));
		}
		if(mac)
		{
			IPACMDBG_H("Mac: 0x%02x%02x%02x%02x%02x%02x \n",
				mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
			memcpy(evt_data_all->mac_addr, mac, sizeof(evt_data_all->mac_addr));
		}
		if(iface_name)
		{
			IPACMDBG_H("Iface: %s\n", iface_name);
			memcpy(evt_data_all->iface_name, iface_name, sizeof(evt_data_all->iface_name));
		}
		eth_bridge_evt.evt_data = (void*)evt_data_all;
	}
	else
#endif
	{
		evt_data_eth_bridge = (ipacm_event_eth_bridge*)malloc(sizeof(*evt_data_eth_bridge));
		if(evt_data_eth_bridge == NULL)
		{
			IPACMERR("Failed to allocate memory.\n");
			return;
		}
		memset(evt_data_eth_bridge, 0, sizeof(*evt_data_eth_bridge));

		evt_data_eth_bridge->p_iface = this;
		evt_data_eth_bridge->iptype = iptype;
		evt_data_eth_bridge->ep = ep;
		if(mac)
		{
			IPACMDBG_H("Mac: 0x%02x%02x%02x%02x%02x%02x \n",
				mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
			memcpy(evt_data_eth_bridge->mac_addr, mac, sizeof(evt_data_eth_bridge->mac_addr));
		}
		if(iface_name)
		{
			IPACMDBG_H("Iface: %s\n", iface_name);
			memcpy(evt_data_eth_bridge->iface_name, iface_name,
				sizeof(evt_data_eth_bridge->iface_name));
		}
		eth_bridge_evt.evt_data = (void*)evt_data_eth_bridge;
	}
	if (eventName != NULL)
	{
		IPACMDBG_H("Posting event %s\n",
				eventName);
	}
	IPACM_EvtDispatcher::PostEvt(&eth_bridge_evt);
}

/* add header processing context and return handle to lan2lan controller */
int IPACM_Lan::eth_bridge_add_hdr_proc_ctx(ipa_hdr_l2_type peer_l2_hdr_type, uint32_t *hdl)
{
	int len, res = IPACM_SUCCESS;
	uint32_t hdr_template;
	ipa_ioc_add_hdr_proc_ctx* pHeaderProcTable = NULL;

	if(tx_prop == NULL)
	{
		IPACMERR("No tx prop.\n");
		return IPACM_FAILURE;
	}

	len = sizeof(struct ipa_ioc_add_hdr_proc_ctx) + sizeof(struct ipa_hdr_proc_ctx_add);
	pHeaderProcTable = (ipa_ioc_add_hdr_proc_ctx*)malloc(len);
	if(pHeaderProcTable == NULL)
	{
		IPACMERR("Cannot allocate header processing context table.\n");
		return IPACM_FAILURE;
	}

	memset(pHeaderProcTable, 0, len);
	pHeaderProcTable->commit = 1;
	pHeaderProcTable->num_proc_ctxs = 1;
	pHeaderProcTable->proc_ctx[0].type = eth_bridge_get_hdr_proc_type(peer_l2_hdr_type, tx_prop->tx[0].hdr_l2_type);
	eth_bridge_get_hdr_template_hdl(&hdr_template);
	pHeaderProcTable->proc_ctx[0].hdr_hdl = hdr_template;
	if (m_header.AddHeaderProcCtx(pHeaderProcTable) == false)
	{
		IPACMERR("Adding hdr proc ctx failed with status: %d\n", pHeaderProcTable->proc_ctx[0].status);
		res = IPACM_FAILURE;
		goto end;
	}

	*hdl = pHeaderProcTable->proc_ctx[0].proc_ctx_hdl;

end:
	free(pHeaderProcTable);
	return res;
}

/* add routing rule and return handle to lan2lan controller */
int IPACM_Lan::eth_bridge_add_rt_rule(uint8_t *mac, char *rt_tbl_name, uint32_t hdr_proc_ctx_hdl,
		ipa_hdr_l2_type peer_l2_hdr_type, ipa_ip_type iptype, uint32_t *rt_rule_hdl, int *rt_rule_count,
		int ep)
{
	int len, res = IPACM_SUCCESS;
	uint32_t i, position, num_rt_rule;
	struct ipa_ioc_add_rt_rule* rt_rule_table = NULL;
	struct ipa_rt_rule_add rt_rule;

	IPACMDBG_H("Received client MAC 0x%02x%02x%02x%02x%02x%02x.\n",
			mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);

	/*fix -Wall -Werror if wigig feature is not enabled */
	IPACMDBG_H("ep: %d\n", ep);

	num_rt_rule = each_client_rt_rule_count[iptype];

	len = sizeof(ipa_ioc_add_rt_rule) + num_rt_rule * sizeof(ipa_rt_rule_add);
	rt_rule_table = (ipa_ioc_add_rt_rule*)malloc(len);
	if (rt_rule_table == NULL)
	{
		IPACMERR("Failed to allocate memory.\n");
		return IPACM_FAILURE;
	}
	memset(rt_rule_table, 0, len);

	rt_rule_table->commit = 1;
	rt_rule_table->ip = iptype;
	rt_rule_table->num_rules = num_rt_rule;
	strlcpy(rt_rule_table->rt_tbl_name, rt_tbl_name, sizeof(rt_rule_table->rt_tbl_name));
	rt_rule_table->rt_tbl_name[IPA_RESOURCE_NAME_MAX-1] = 0;

	memset(&rt_rule, 0, sizeof(ipa_rt_rule_add));
	rt_rule.at_rear = false;
	rt_rule.status = -1;
	rt_rule.rt_rule_hdl = -1;
	if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
		rt_rule.rule.hashable = true;
	rt_rule.rule.hdr_hdl = 0;
	rt_rule.rule.hdr_proc_ctx_hdl = hdr_proc_ctx_hdl;

	position = 0;
	for(i=0; i<iface_query->num_tx_props; i++)
	{
		if(tx_prop->tx[i].ip == iptype)
		{
			if(position >= num_rt_rule || position >= MAX_NUM_PROP)
			{
				IPACMERR("Number of routing rules already exceeds limit.\n");
				res = IPACM_FAILURE;
				goto end;
			}
#ifdef IPA_CLIENT_WIGIG4_CONS
			if ((ep >= IPA_CLIENT_WIGIG1_CONS) && (ep <= IPA_CLIENT_WIGIG4_CONS))
			{
				IPACMDBG_H("wigig DL pipe %d\n", ep);
				rt_rule.rule.dst = (enum ipa_client_type)ep;
			}
			else 
#endif
			if(ipa_if_cate == WLAN_IF && IPACM_Iface::ipacmcfg->isMCC_Mode)
			{
				IPACMDBG_H("In WLAN MCC mode, use alt dst pipe: %d\n",
						tx_prop->tx[i].alt_dst_pipe);
				rt_rule.rule.dst = tx_prop->tx[i].alt_dst_pipe;
			}
			else
			{
				IPACMDBG_H("It is not WLAN MCC mode, use dst pipe: %d\n",
						tx_prop->tx[i].dst_pipe);
				rt_rule.rule.dst = tx_prop->tx[i].dst_pipe;
			}

			memcpy(&rt_rule.rule.attrib, &tx_prop->tx[i].attrib, sizeof(rt_rule.rule.attrib));
			if(peer_l2_hdr_type == IPA_HDR_L2_ETHERNET_II)
				rt_rule.rule.attrib.attrib_mask |= IPA_FLT_MAC_DST_ADDR_ETHER_II;
			else
				rt_rule.rule.attrib.attrib_mask |= IPA_FLT_MAC_DST_ADDR_802_3;
			memcpy(rt_rule.rule.attrib.dst_mac_addr, mac, sizeof(rt_rule.rule.attrib.dst_mac_addr));
			memset(rt_rule.rule.attrib.dst_mac_addr_mask, 0xFF, sizeof(rt_rule.rule.attrib.dst_mac_addr_mask));

			memcpy(&(rt_rule_table->rules[position]), &rt_rule, sizeof(rt_rule_table->rules[position]));
			position++;
		}
	}
	if(false == m_routing.AddRoutingRule(rt_rule_table))
	{
		IPACMERR("Routing rule addition failed!\n");
		res = IPACM_FAILURE;
		goto end;
	}
	else
	{
		*rt_rule_count = position;
		for(i=0; i<position; i++)
			rt_rule_hdl[i] = rt_rule_table->rules[i].rt_rule_hdl;
	}

end:
	free(rt_rule_table);
	return res;
}

/* modify routing rule*/
int IPACM_Lan::eth_bridge_modify_rt_rule(uint8_t *mac, uint32_t hdr_proc_ctx_hdl,
		ipa_hdr_l2_type peer_l2_hdr_type, ipa_ip_type iptype, uint32_t *rt_rule_hdl, int rt_rule_count)
{
	struct ipa_ioc_mdfy_rt_rule *rt_rule = NULL;
	struct ipa_rt_rule_mdfy *rt_rule_entry;
	int len, res = IPACM_SUCCESS;
	uint32_t index;

	if(tx_prop == NULL)
	{
		IPACMDBG_H("No tx properties \n");
		return IPACM_FAILURE;
	}

	if(ipa_if_cate != WLAN_IF)
	{
		IPACMDBG_H("This is not WLAN IF, no need to modify rt rule.\n");
		return IPACM_SUCCESS;
	}

	IPACMDBG_H("Receive WLAN client MAC 0x%02x%02x%02x%02x%02x%02x.\n",
			mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);

	len = sizeof(struct ipa_ioc_mdfy_rt_rule) + rt_rule_count * sizeof(struct ipa_rt_rule_mdfy);
	rt_rule = (struct ipa_ioc_mdfy_rt_rule *)malloc(len);
	if(rt_rule == NULL)
	{
		IPACMERR("Unable to allocate memory for modify rt rule\n");
		return IPACM_FAILURE;
	}
	memset(rt_rule, 0, len);

	rt_rule->commit = 1;
	rt_rule->num_rules = 0;
	rt_rule->ip = iptype;

	for (index = 0; index < tx_prop->num_tx_props; index++)
	{
		if (tx_prop->tx[index].ip == iptype)
		{
			if (rt_rule->num_rules >= rt_rule_count ||
				rt_rule->num_rules >= MAX_NUM_PROP)
			{
				IPACMERR("Number of routing rules exceeds limit.\n");
				res = IPACM_FAILURE;
				goto end;
			}

			rt_rule_entry = &rt_rule->rules[rt_rule->num_rules];

			if (IPACM_Iface::ipacmcfg->isMCC_Mode)
			{
				IPACMDBG_H("In WLAN MCC mode, use alt dst pipe: %d\n",
						tx_prop->tx[index].alt_dst_pipe);
				rt_rule_entry->rule.dst = tx_prop->tx[index].alt_dst_pipe;
			}
			else
			{
				IPACMDBG_H("In WLAN SCC mode, use dst pipe: %d\n",
						tx_prop->tx[index].dst_pipe);
				rt_rule_entry->rule.dst = tx_prop->tx[index].dst_pipe;
			}

			rt_rule_entry->rule.hdr_hdl = 0;
			rt_rule_entry->rule.hdr_proc_ctx_hdl = hdr_proc_ctx_hdl;
			if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
				rt_rule_entry->rule.hashable = true;
			memcpy(&rt_rule_entry->rule.attrib, &tx_prop->tx[index].attrib,
					sizeof(rt_rule_entry->rule.attrib));
			if(peer_l2_hdr_type == IPA_HDR_L2_ETHERNET_II)
				rt_rule_entry->rule.attrib.attrib_mask |= IPA_FLT_MAC_DST_ADDR_ETHER_II;
			else
				rt_rule_entry->rule.attrib.attrib_mask |= IPA_FLT_MAC_DST_ADDR_802_3;
			memcpy(rt_rule_entry->rule.attrib.dst_mac_addr, mac,
					sizeof(rt_rule_entry->rule.attrib.dst_mac_addr));
			memset(rt_rule_entry->rule.attrib.dst_mac_addr_mask, 0xFF,
					sizeof(rt_rule_entry->rule.attrib.dst_mac_addr_mask));

			rt_rule_entry->rt_rule_hdl = rt_rule_hdl[rt_rule->num_rules];
			rt_rule->num_rules++;
		}
	}

	if(m_routing.ModifyRoutingRule(rt_rule) == false)
	{
		IPACMERR("Failed to modify routing rules.\n");
		res = IPACM_FAILURE;
		goto end;
	}
	if(m_routing.Commit(iptype) == false)
	{
		IPACMERR("Failed to commit routing rules.\n");
		res = IPACM_FAILURE;
		goto end;
	}
	IPACMDBG("Modified routing rules successfully.\n");

end:
	free(rt_rule);
	return res;
}

int IPACM_Lan::eth_bridge_add_flt_rule(uint8_t *mac, uint32_t rt_tbl_hdl, ipa_ip_type iptype, uint32_t *flt_rule_hdl)
{
	int res = IPACM_SUCCESS;
	int len;
	struct ipa_flt_rule_add flt_rule_entry;
	struct ipa_ioc_add_flt_rule_after *pFilteringTable = NULL;
	bool result;

	IPACMDBG_H("Received client MAC 0x%02x%02x%02x%02x%02x%02x.\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
	IPACMDBG_H("Received rt_tbl_hdl :%d iptype %d\n", rt_tbl_hdl,iptype);
	*flt_rule_hdl = 0;

	if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
	{
		if (rx_prop == NULL || tx_prop == NULL)
		{
			IPACMDBG_H("No rx or tx properties registered for iface %s\n", dev_name);
			return IPACM_FAILURE;
		}


		len = sizeof(struct ipa_ioc_add_flt_rule_after) + sizeof(struct ipa_flt_rule_add);
		pFilteringTable = (struct ipa_ioc_add_flt_rule_after*)malloc(len);
		if (!pFilteringTable)
		{
			IPACMERR("Failed to allocate ipa_ioc_add_flt_rule_after memory...\n");
			return IPACM_FAILURE;
		}
		memset(pFilteringTable, 0, len);

		/* add mac based rule*/
		pFilteringTable->commit = 1;
		pFilteringTable->ep = rx_prop->rx[0].src_pipe;
		pFilteringTable->ip = iptype;
		pFilteringTable->num_rules = 1;
		pFilteringTable->add_after_hdl = eth_bridge_flt_rule_offset[iptype];

		memset(&flt_rule_entry, 0, sizeof(flt_rule_entry));
		flt_rule_entry.at_rear = 1;

		flt_rule_entry.rule.retain_hdr = 0;
		flt_rule_entry.rule.to_uc = 0;
		flt_rule_entry.rule.action = IPA_PASS_TO_ROUTING;
		flt_rule_entry.rule.eq_attrib_type = 0;
		flt_rule_entry.rule.rt_tbl_hdl = rt_tbl_hdl;
		flt_rule_entry.rule.hashable = true;

		memcpy(&flt_rule_entry.rule.attrib, &rx_prop->rx[0].attrib, sizeof(flt_rule_entry.rule.attrib));
		if(tx_prop->tx[0].hdr_l2_type == IPA_HDR_L2_ETHERNET_II)
		{
			flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_MAC_DST_ADDR_ETHER_II;
		}
		else
		{
			flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_MAC_DST_ADDR_802_3;
		}

		memcpy(flt_rule_entry.rule.attrib.dst_mac_addr, mac, sizeof(flt_rule_entry.rule.attrib.dst_mac_addr));
		memset(flt_rule_entry.rule.attrib.dst_mac_addr_mask, 0xFF, sizeof(flt_rule_entry.rule.attrib.dst_mac_addr_mask));

		memcpy(&(pFilteringTable->rules[0]), &flt_rule_entry, sizeof(flt_rule_entry));
#ifdef IPA_IOCTL_SET_FNR_COUNTER_INFO
		/* use index hw-counter */
		if(ipa_if_cate == WLAN_IF && IPACM_Iface::ipacmcfg->hw_fnr_stats_support)
		{
			IPACMDBG_H("hw-index-enable %d, counter %d\n", IPACM_Iface::ipacmcfg->hw_fnr_stats_support, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
			result = m_filtering.AddFilteringRuleAfter_hw_index(pFilteringTable, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
		} else {
			result = m_filtering.AddFilteringRuleAfter(pFilteringTable);
		}
#else
		result = m_filtering.AddFilteringRuleAfter(pFilteringTable);
#endif
		if (result == false)
		{
			IPACMERR("Failed to add client filtering rules.\n");
			res = IPACM_FAILURE;
			goto end;
		}
		*flt_rule_hdl = pFilteringTable->rules[0].flt_rule_hdl;

end:
		free(pFilteringTable);
	}
	else
	{
		IPACMDBG_H("Received client MAC 0x%02x%02x%02x%02x%02x%02x.\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
		IPACMDBG_H("Not support rt_tbl_hdl %d flt_rule_hdl %p ip-type %d\n", rt_tbl_hdl, flt_rule_hdl, iptype);
	}
	return res;
}

int IPACM_Lan::eth_bridge_del_flt_rule(uint32_t flt_rule_hdl, ipa_ip_type iptype)
{
	if(m_filtering.DeleteFilteringHdls(&flt_rule_hdl, iptype, 1) == false)
	{
		IPACMERR("Failed to delete the client specific flt rule.\n");
		return IPACM_FAILURE;
	}
	return IPACM_SUCCESS;
}

int IPACM_Lan::eth_bridge_del_rt_rule(uint32_t rt_rule_hdl, ipa_ip_type iptype)
{
	if(m_routing.DeleteRoutingHdl(rt_rule_hdl, iptype) == false)
	{
		IPACMERR("Failed to delete routing rule.\n");
		return IPACM_FAILURE;
	}
	return IPACM_SUCCESS;
}

/* delete header processing context */
int IPACM_Lan::eth_bridge_del_hdr_proc_ctx(uint32_t hdr_proc_ctx_hdl)
{
	if(m_header.DeleteHeaderProcCtx(hdr_proc_ctx_hdl) == false)
	{
		IPACMERR("Failed to delete hdr proc ctx.\n");
		return IPACM_FAILURE;
	}
	return IPACM_SUCCESS;
}

#ifdef FEATURE_L2TP
/* check if the event is associated with vlan interface */
bool IPACM_Lan::is_vlan_event(char *event_iface_name)
{
	int self_name_len, event_iface_name_len;
	if(event_iface_name == NULL)
	{
		IPACMERR("Invalid input\n");
		return false;
	}

	IPACMDBG_H("Self iface %s, event iface %s\n", dev_name, event_iface_name);
	self_name_len = strlen(dev_name);
	event_iface_name_len = strlen(event_iface_name);

	if(event_iface_name_len > self_name_len && strncmp(dev_name, event_iface_name, self_name_len) == 0)
	{
		IPACMDBG_H("This is vlan event.\n");
		return true;
	}
	return false;
}

/* check if the event is associated with l2tp interface */
bool IPACM_Lan::is_l2tp_event(char *event_iface_name)
{
	if(event_iface_name == NULL)
	{
		IPACMERR("Invalid input\n");
		return false;
	}

	IPACMDBG_H("Self iface %s, event iface %s\n", dev_name, event_iface_name);
	if(strncmp(event_iface_name, "l2tp", 4) == 0)
	{
		IPACMDBG_H("This is l2tp event.\n");
		return true;
	}
	return false;
}

/* add l2tp rt rule for l2tp client */
int IPACM_Lan::add_l2tp_rt_rule(ipa_ip_type iptype, uint8_t *dst_mac, ipa_hdr_l2_type peer_l2_hdr_type,
	uint32_t l2tp_session_id, uint32_t vlan_id, uint8_t *vlan_client_mac, uint32_t *vlan_iface_ipv6_addr,
	uint32_t *vlan_client_ipv6_addr, uint32_t *first_pass_hdr_hdl, uint32_t *first_pass_hdr_proc_ctx_hdl,
	uint32_t *second_pass_hdr_hdl, int *num_rt_hdl, uint32_t *first_pass_rt_rule_hdl, uint32_t *second_pass_rt_rule_hdl)
{
	int i, size, position;
	uint32_t tx_index;
	uint32_t vlan_iface_ipv6_addr_network[4], vlan_client_ipv6_addr_network[4];
	ipa_ioc_add_hdr *hdr_table;
	ipa_hdr_add *hdr;
	ipa_ioc_add_hdr_proc_ctx *hdr_proc_ctx_table;
	ipa_hdr_proc_ctx_add *hdr_proc_ctx;
	ipa_ioc_add_rt_rule* rt_rule_table;
	ipa_rt_rule_add *rt_rule;
	ipa_ioc_copy_hdr copy_hdr;

	if(tx_prop == NULL)
	{
		IPACMERR("No tx prop.\n");
		return IPACM_FAILURE;
	}

	/* =========== install first pass hdr template (IPv6 + L2TP + inner ETH header = 62 bytes) ============= */
	if(*first_pass_hdr_hdl != 0)
	{
		IPACMDBG_H("First pass hdr template was added before.\n");
	}
	else
	{
		size = sizeof(ipa_ioc_add_hdr) + sizeof(ipa_hdr_add);
		hdr_table = (ipa_ioc_add_hdr*)malloc(size);
		if(hdr_table == NULL)
		{
			IPACMERR("Failed to allocate memory.\n");
			return IPACM_FAILURE;
		}
		memset(hdr_table, 0, size);

		hdr_table->commit = 1;
		hdr_table->num_hdrs = 1;
		hdr = &hdr_table->hdr[0];

		if(iptype == IPA_IP_v4)
		{
			snprintf(hdr->name, sizeof(hdr->name), "vlan_%d_l2tp_%d_v4", vlan_id, l2tp_session_id);
		}
		else
		{
			snprintf(hdr->name, sizeof(hdr->name), "vlan_%d_l2tp_%d_v6", vlan_id, l2tp_session_id);
		}
		hdr->hdr_len = 62;
		hdr->type = IPA_HDR_L2_ETHERNET_II;
		hdr->is_partial = 0;

		hdr->hdr[0] = 0x60;	/* version */
		hdr->hdr[6] = 0x73; /* next header = L2TP */
		hdr->hdr[7] = 0x40; /* hop limit = 64 */
		for(i = 0; i < 4; i++)
		{
			vlan_iface_ipv6_addr_network[i] = htonl(vlan_iface_ipv6_addr[i]);
			vlan_client_ipv6_addr_network[i] = htonl(vlan_client_ipv6_addr[i]);
		}
		memcpy(hdr->hdr + 8, vlan_iface_ipv6_addr_network, 16); /* source IPv6 addr */
		memcpy(hdr->hdr + 24, vlan_client_ipv6_addr_network, 16); /* dest IPv6 addr */
		hdr->hdr[43] = (uint8_t)(l2tp_session_id & 0xFF); /* l2tp header */
		hdr->hdr[42] = (uint8_t)(l2tp_session_id >> 8 & 0xFF);
		hdr->hdr[41] = (uint8_t)(l2tp_session_id >> 16 & 0xFF);
		hdr->hdr[40] = (uint8_t)(l2tp_session_id >> 24 & 0xFF);

		if(m_header.AddHeader(hdr_table) == false)
		{
			IPACMERR("Failed to add hdr with status: %d\n", hdr_table->hdr[0].status);
			free(hdr_table);
			return IPACM_FAILURE;
		}
		*first_pass_hdr_hdl = hdr_table->hdr[0].hdr_hdl;
		IPACMDBG_H("Installed first pass hdr: hdl %d\n", *first_pass_hdr_hdl);
		free(hdr_table);
	}

	/* =========== install first pass hdr proc ctx (populate src/dst MAC and Ether type) ============= */
	size = sizeof(ipa_ioc_add_hdr_proc_ctx) + sizeof(ipa_hdr_proc_ctx_add);
	hdr_proc_ctx_table = (ipa_ioc_add_hdr_proc_ctx*)malloc(size);
	if(hdr_proc_ctx_table == NULL)
	{
		IPACMERR("Failed to allocate memory.\n");
		return IPACM_FAILURE;
	}
	memset(hdr_proc_ctx_table, 0, size);

	hdr_proc_ctx_table->commit = 1;
	hdr_proc_ctx_table->num_proc_ctxs = 1;
	hdr_proc_ctx = &hdr_proc_ctx_table->proc_ctx[0];

	hdr_proc_ctx->type = IPA_HDR_PROC_L2TP_HEADER_ADD;
	hdr_proc_ctx->hdr_hdl = *first_pass_hdr_hdl;
	hdr_proc_ctx->l2tp_params.hdr_add_param.eth_hdr_retained = 1;
	hdr_proc_ctx->l2tp_params.hdr_add_param.input_ip_version = iptype;
	hdr_proc_ctx->l2tp_params.hdr_add_param.output_ip_version = IPA_IP_v6;
	if(m_header.AddHeaderProcCtx(hdr_proc_ctx_table) == false)
	{
		IPACMERR("Failed to add hdr proc ctx with status: %d\n", hdr_proc_ctx_table->proc_ctx[0].status);
		free(hdr_proc_ctx_table);
		return IPACM_FAILURE;
	}
	*first_pass_hdr_proc_ctx_hdl = hdr_proc_ctx_table->proc_ctx[0].proc_ctx_hdl;
	IPACMDBG_H("Installed first pass hdr proc ctx: hdl %d\n", *first_pass_hdr_proc_ctx_hdl);
	free(hdr_proc_ctx_table);

	/* =========== install first pass rt rules (match dst MAC then doing UCP) ============= */
	*num_rt_hdl = each_client_rt_rule_count[iptype];
	size = sizeof(ipa_ioc_add_rt_rule) + (*num_rt_hdl) * sizeof(ipa_rt_rule_add);
	rt_rule_table = (ipa_ioc_add_rt_rule*)malloc(size);
	if (rt_rule_table == NULL)
	{
		IPACMERR("Failed to allocate memory.\n");
		return IPACM_FAILURE;
	}
	memset(rt_rule_table, 0, size);

	rt_rule_table->commit = 1;
	rt_rule_table->ip = iptype;
	rt_rule_table->num_rules = *num_rt_hdl;
	snprintf(rt_rule_table->rt_tbl_name, sizeof(rt_rule_table->rt_tbl_name), "l2tp");
	rt_rule_table->rt_tbl_name[IPA_RESOURCE_NAME_MAX-1] = 0;

	position = 0;
	for(tx_index = 0; tx_index < iface_query->num_tx_props; tx_index++)
	{
		if(tx_prop->tx[tx_index].ip == iptype)
		{
			if(position >= *num_rt_hdl || position >= MAX_NUM_PROP)
			{
				IPACMERR("Number of routing rules already exceeds limit.\n");
				free(rt_rule_table);
				return IPACM_FAILURE;
			}

			rt_rule = &rt_rule_table->rules[position];
			rt_rule->at_rear = false;
			rt_rule->status = -1;
			rt_rule->rt_rule_hdl = -1;
			rt_rule->rule.hashable = false;	//WLAN->ETH direction rules are set to non-hashable to keep consistent with the other direction
			rt_rule->rule.hdr_hdl = 0;
			rt_rule->rule.hdr_proc_ctx_hdl = *first_pass_hdr_proc_ctx_hdl;
			rt_rule->rule.dst = IPA_CLIENT_DUMMY_CONS;

			memcpy(&rt_rule->rule.attrib, &tx_prop->tx[tx_index].attrib, sizeof(rt_rule->rule.attrib));
			if(peer_l2_hdr_type == IPA_HDR_L2_ETHERNET_II)
				rt_rule->rule.attrib.attrib_mask |= IPA_FLT_MAC_DST_ADDR_ETHER_II;
			else
				rt_rule->rule.attrib.attrib_mask |= IPA_FLT_MAC_DST_ADDR_802_3;
			memcpy(rt_rule->rule.attrib.dst_mac_addr, dst_mac, sizeof(rt_rule->rule.attrib.dst_mac_addr));
			memset(rt_rule->rule.attrib.dst_mac_addr_mask, 0xFF, sizeof(rt_rule->rule.attrib.dst_mac_addr_mask));
			position++;
		}
	}
	if(m_routing.AddRoutingRule(rt_rule_table) == false)
	{
		IPACMERR("Failed to add first pass rt rules.\n");
		free(rt_rule_table);
		return IPACM_FAILURE;
	}
	for(i = 0; i < position; i++)
	{
		first_pass_rt_rule_hdl[i] = rt_rule_table->rules[i].rt_rule_hdl;
	}
	free(rt_rule_table);

	/* =========== install second pass hdr (Ethernet header with L2TP tag = 18 bytes) ============= */
	if(*second_pass_hdr_hdl != 0)
	{
		IPACMDBG_H("Second pass hdr was added before.\n");
	}
	else
	{
		size = sizeof(ipa_ioc_add_hdr) + sizeof(ipa_hdr_add);
		hdr_table = (ipa_ioc_add_hdr*)malloc(size);
		if(hdr_table == NULL)
		{
			IPACMERR("Failed to allocate memory.\n");
			return IPACM_FAILURE;
		}
		memset(hdr_table, 0, size);

		hdr_table->commit = 1;
		hdr_table->num_hdrs = 1;
		hdr = &hdr_table->hdr[0];

		if(iptype == IPA_IP_v4)
		{
			snprintf(hdr->name, sizeof(hdr->name), "vlan_%d_v4", vlan_id);
		}
		else
		{
			snprintf(hdr->name, sizeof(hdr->name), "vlan_%d_v6", vlan_id);
		}
		hdr->type = IPA_HDR_L2_ETHERNET_II;
		hdr->is_partial = 0;
		for(tx_index = 0; tx_index < tx_prop->num_tx_props; tx_index++)
		{
			if(tx_prop->tx[tx_index].ip == IPA_IP_v6)
			{
				memset(&copy_hdr, 0, sizeof(copy_hdr));
				strlcpy(copy_hdr.name, tx_prop->tx[tx_index].hdr_name,
					sizeof(copy_hdr.name));
				IPACMDBG_H("Header name: %s in tx:%d\n", copy_hdr.name, tx_index);
				if(m_header.CopyHeader(&copy_hdr) == false)
				{
					IPACMERR("Failed to get partial header.\n");
					free(hdr_table);
					return IPACM_FAILURE;
				}
				IPACMDBG_H("Header length: %d\n", copy_hdr.hdr_len);
				hdr->hdr_len = copy_hdr.hdr_len;
				memcpy(hdr->hdr, copy_hdr.hdr, hdr->hdr_len);
				break;
			}
		}
		/* copy vlan client mac */
		memcpy(hdr->hdr + hdr->hdr_len - 18, vlan_client_mac, 6);
		hdr->hdr[hdr->hdr_len - 3] = (uint8_t)vlan_id & 0xFF;
		hdr->hdr[hdr->hdr_len - 4] = (uint8_t)(vlan_id >> 8) & 0xFF;

		if(m_header.AddHeader(hdr_table) == false)
		{
			IPACMERR("Failed to add hdr with status: %d\n", hdr->status);
			free(hdr_table);
			return IPACM_FAILURE;
		}
		*second_pass_hdr_hdl = hdr->hdr_hdl;
		IPACMDBG_H("Installed second pass hdr: hdl %d\n", *second_pass_hdr_hdl);
		free(hdr_table);
	}

	/* =========== install second pass rt rules (match VLAN interface IPv6 address at dst client side) ============= */
	if(second_pass_rt_rule_hdl[0] != 0)
	{
		IPACMDBG_H("Second pass rt rule was added before, return.\n");
		return IPACM_SUCCESS;
	}

	*num_rt_hdl = each_client_rt_rule_count[IPA_IP_v6];
	size = sizeof(ipa_ioc_add_rt_rule) + (*num_rt_hdl) * sizeof(ipa_rt_rule_add);
	rt_rule_table = (ipa_ioc_add_rt_rule*)malloc(size);
	if (rt_rule_table == NULL)
	{
		IPACMERR("Failed to allocate memory.\n");
		return IPACM_FAILURE;
	}
	memset(rt_rule_table, 0, size);

	rt_rule_table->commit = 1;
	rt_rule_table->ip = IPA_IP_v6;
	rt_rule_table->num_rules = *num_rt_hdl;
	snprintf(rt_rule_table->rt_tbl_name, sizeof(rt_rule_table->rt_tbl_name), "l2tp");
	rt_rule_table->rt_tbl_name[IPA_RESOURCE_NAME_MAX-1] = 0;

	position = 0;
	for(tx_index = 0; tx_index < iface_query->num_tx_props; tx_index++)
	{
		if(tx_prop->tx[tx_index].ip == IPA_IP_v6)
		{
			if(position >= *num_rt_hdl || position >= MAX_NUM_PROP)
			{
				IPACMERR("Number of routing rules already exceeds limit.\n");
				free(rt_rule_table);
				return IPACM_FAILURE;
			}

			rt_rule = &rt_rule_table->rules[position];
			rt_rule->at_rear = false;
			rt_rule->status = -1;
			rt_rule->rt_rule_hdl = -1;
			rt_rule->rule.hashable = false;	//WLAN->ETH direction rules are set to non-hashable to keep consistent with the other direction
			rt_rule->rule.hdr_hdl = *second_pass_hdr_hdl;
			rt_rule->rule.hdr_proc_ctx_hdl = 0;
			rt_rule->rule.dst = tx_prop->tx[tx_index].dst_pipe;

			memcpy(&rt_rule->rule.attrib, &tx_prop->tx[tx_index].attrib, sizeof(rt_rule->rule.attrib));
			rt_rule->rule.attrib.attrib_mask |= IPA_FLT_DST_ADDR;
			memcpy(rt_rule->rule.attrib.u.v6.dst_addr, vlan_client_ipv6_addr,
				sizeof(rt_rule->rule.attrib.u.v6.dst_addr));
			memset(rt_rule->rule.attrib.u.v6.dst_addr_mask, 0xFF, sizeof(rt_rule->rule.attrib.u.v6.dst_addr_mask));
			position++;
		}
	}
	if(m_routing.AddRoutingRule(rt_rule_table) == false)
	{
		IPACMERR("Failed to add second pass rt rules.\n");
		free(rt_rule_table);
		return IPACM_FAILURE;
	}
	for(i = 0; i < position; i++)
	{
		second_pass_rt_rule_hdl[i] = rt_rule_table->rules[i].rt_rule_hdl;
	}
	free(rt_rule_table);

	return IPACM_SUCCESS;
}

/* delete l2tp rt rule for l2tp client */
int IPACM_Lan::del_l2tp_rt_rule(ipa_ip_type iptype, uint32_t first_pass_hdr_hdl, uint32_t first_pass_hdr_proc_ctx_hdl,
	uint32_t second_pass_hdr_hdl, int num_rt_hdl, uint32_t *first_pass_rt_rule_hdl, uint32_t *second_pass_rt_rule_hdl)
{
	int i;

	if(num_rt_hdl < 0)
	{
		IPACMERR("Invalid num rt rule: %d\n", num_rt_hdl);
		return IPACM_FAILURE;
	}

	for(i = 0; i < num_rt_hdl; i++)
	{
		if(first_pass_rt_rule_hdl != NULL)
		{
			if(m_routing.DeleteRoutingHdl(first_pass_rt_rule_hdl[i], iptype) == false)
			{
				return IPACM_FAILURE;
			}
		}
		if(second_pass_rt_rule_hdl != NULL)
		{
			if(m_routing.DeleteRoutingHdl(second_pass_rt_rule_hdl[i], IPA_IP_v6) == false)
			{
				return IPACM_FAILURE;
			}
		}
	}

	if(first_pass_hdr_proc_ctx_hdl != 0)
	{
		if(m_header.DeleteHeaderProcCtx(first_pass_hdr_proc_ctx_hdl) == false)
		{
			return IPACM_FAILURE;
		}
	}

	if(first_pass_hdr_hdl != 0)
	{
		if(m_header.DeleteHeaderHdl(first_pass_hdr_hdl) == false)
		{
			return IPACM_FAILURE;
		}
	}
	if(second_pass_hdr_hdl != 0)
	{
		if(m_header.DeleteHeaderHdl(second_pass_hdr_hdl) == false)
		{
			return IPACM_FAILURE;
		}
	}

	return IPACM_SUCCESS;
}

/* add l2tp rt rule for non l2tp client */
int IPACM_Lan::add_l2tp_rt_rule(ipa_ip_type iptype, uint8_t *dst_mac, uint32_t *hdr_proc_ctx_hdl,
	int *num_rt_hdl, uint32_t *rt_rule_hdl)
{
	int i, size, position;
	uint32_t tx_index;
	ipa_ioc_add_hdr_proc_ctx *hdr_proc_ctx_table;
	ipa_hdr_proc_ctx_add *hdr_proc_ctx;
	ipa_ioc_add_rt_rule* rt_rule_table;
	ipa_rt_rule_add *rt_rule;
	ipa_ioc_get_hdr hdr;

	if(tx_prop == NULL)
	{
		IPACMERR("No tx prop.\n");
		return IPACM_FAILURE;
	}

	memset(&hdr, 0, sizeof(hdr));
	for(tx_index = 0; tx_index < tx_prop->num_tx_props; tx_index++)
	{
		if(tx_prop->tx[tx_index].ip == iptype)
		{
			strlcpy(hdr.name, tx_prop->tx[tx_index].hdr_name,
				sizeof(hdr.name));
			break;
		}
	}
	if(m_header.GetHeaderHandle(&hdr) == false)
	{
		IPACMERR("Failed to get template hdr hdl.\n");
		return IPACM_FAILURE;
	}

	/* =========== install hdr proc ctx (uc needs to remove IPv6 + L2TP + inner ETH header = 62 bytes) ============= */
	if(*hdr_proc_ctx_hdl != 0)
	{
		IPACMDBG_H("Hdr proc ctx was added before.\n");
	}
	else
	{
		size = sizeof(ipa_ioc_add_hdr_proc_ctx) + sizeof(ipa_hdr_proc_ctx_add);
		hdr_proc_ctx_table = (ipa_ioc_add_hdr_proc_ctx*)malloc(size);
		if(hdr_proc_ctx_table == NULL)
		{
			IPACMERR("Failed to allocate memory.\n");
			return IPACM_FAILURE;
		}
		memset(hdr_proc_ctx_table, 0, size);

		hdr_proc_ctx_table->commit = 1;
		hdr_proc_ctx_table->num_proc_ctxs = 1;
		hdr_proc_ctx = &hdr_proc_ctx_table->proc_ctx[0];

		hdr_proc_ctx->type = IPA_HDR_PROC_L2TP_HEADER_REMOVE;
		hdr_proc_ctx->hdr_hdl = hdr.hdl;
		hdr_proc_ctx->l2tp_params.hdr_remove_param.hdr_len_remove = 62;
		hdr_proc_ctx->l2tp_params.hdr_remove_param.eth_hdr_retained = 1;
		hdr_proc_ctx->l2tp_params.is_dst_pipe_valid = 1;
		hdr_proc_ctx->l2tp_params.dst_pipe = tx_prop->tx[0].dst_pipe;
		IPACMDBG_H("Header_remove: hdr len %d, hdr retained %d, dst client: %d\n",
			hdr_proc_ctx->l2tp_params.hdr_remove_param.hdr_len_remove,
			hdr_proc_ctx->l2tp_params.hdr_remove_param.eth_hdr_retained,
			hdr_proc_ctx->l2tp_params.dst_pipe);
		if(m_header.AddHeaderProcCtx(hdr_proc_ctx_table) == false)
		{
			IPACMERR("Failed to add hdr proc ctx with status: %d\n", hdr_proc_ctx_table->proc_ctx[0].status);
			free(hdr_proc_ctx_table);
			return IPACM_FAILURE;
		}
		*hdr_proc_ctx_hdl = hdr_proc_ctx_table->proc_ctx[0].proc_ctx_hdl;
		IPACMDBG_H("Installed hdr proc ctx: hdl %d\n", *hdr_proc_ctx_hdl);
		free(hdr_proc_ctx_table);
	}

	/* =========== install rt rules (match dst MAC within 62 bytes header) ============= */
	*num_rt_hdl = each_client_rt_rule_count[iptype];
	size = sizeof(ipa_ioc_add_rt_rule) + (*num_rt_hdl) * sizeof(ipa_rt_rule_add);
	rt_rule_table = (ipa_ioc_add_rt_rule*)malloc(size);
	if (rt_rule_table == NULL)
	{
		IPACMERR("Failed to allocate memory.\n");
		return IPACM_FAILURE;
	}
	memset(rt_rule_table, 0, size);

	rt_rule_table->commit = 1;
	rt_rule_table->ip = iptype;
	rt_rule_table->num_rules = *num_rt_hdl;
	snprintf(rt_rule_table->rt_tbl_name, sizeof(rt_rule_table->rt_tbl_name), "l2tp");
	rt_rule_table->rt_tbl_name[IPA_RESOURCE_NAME_MAX-1] = 0;

	position = 0;
	for(tx_index = 0; tx_index < iface_query->num_tx_props; tx_index++)
	{
		if(tx_prop->tx[tx_index].ip == iptype)
		{
			if(position >= *num_rt_hdl || position >= MAX_NUM_PROP)
			{
				IPACMERR("Number of routing rules already exceeds limit.\n");
				free(rt_rule_table);
				return IPACM_FAILURE;
			}

			rt_rule = &rt_rule_table->rules[position];
			rt_rule->at_rear = false;
			rt_rule->status = -1;
			rt_rule->rt_rule_hdl = -1;
			rt_rule->rule.hashable = false;	//ETH->WLAN direction rules need to be non-hashable due to encapsulation

			rt_rule->rule.hdr_hdl = 0;
			rt_rule->rule.hdr_proc_ctx_hdl = *hdr_proc_ctx_hdl;
			rt_rule->rule.dst = tx_prop->tx[tx_index].dst_pipe;

			memcpy(&rt_rule->rule.attrib, &tx_prop->tx[tx_index].attrib, sizeof(rt_rule->rule.attrib));

			rt_rule->rule.attrib.attrib_mask |= IPA_FLT_MAC_DST_ADDR_L2TP;
			memset(rt_rule->rule.attrib.dst_mac_addr_mask, 0xFF, sizeof(rt_rule->rule.attrib.dst_mac_addr_mask));
			memcpy(rt_rule->rule.attrib.dst_mac_addr, dst_mac, sizeof(rt_rule->rule.attrib.dst_mac_addr));

			position++;
		}
	}
	if(m_routing.AddRoutingRule(rt_rule_table) == false)
	{
		IPACMERR("Failed to add first pass rt rules.\n");
		free(rt_rule_table);
		return IPACM_FAILURE;
	}
	for(i = 0; i < position; i++)
		rt_rule_hdl[i] = rt_rule_table->rules[i].rt_rule_hdl;

	free(rt_rule_table);
	return IPACM_SUCCESS;
}

int IPACM_Lan::del_l2tp_rt_rule(ipa_ip_type iptype, int num_rt_hdl, uint32_t *rt_rule_hdl)
{
	int i;

	if(num_rt_hdl < 0)
	{
		IPACMERR("Invalid num rt rule: %d\n", num_rt_hdl);
		return IPACM_FAILURE;
	}

	for(i = 0; i < num_rt_hdl; i++)
	{
		if(m_routing.DeleteRoutingHdl(rt_rule_hdl[i], iptype) == false)
		{
			return IPACM_FAILURE;
		}
	}

	return IPACM_SUCCESS;
}

/* add l2tp flt rule on l2tp interface */
int IPACM_Lan::add_l2tp_flt_rule(uint8_t *dst_mac, uint32_t *flt_rule_hdl)
{
	int len;
	int fd_ipa;
	struct ipa_flt_rule_add flt_rule_entry;
	struct ipa_ioc_add_flt_rule_after *pFilteringTable = NULL;
	ipa_ioc_get_rt_tbl rt_tbl;

	if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
	{
		if (rx_prop == NULL || tx_prop == NULL)
		{
			IPACMDBG_H("No rx or tx properties registered for iface %s\n", dev_name);
			return IPACM_FAILURE;
		}

		len = sizeof(struct ipa_ioc_add_flt_rule_after) + sizeof(struct ipa_flt_rule_add);
		pFilteringTable = (struct ipa_ioc_add_flt_rule_after*)malloc(len);
		if (!pFilteringTable)
		{
			IPACMERR("Failed to allocate ipa_ioc_add_flt_rule_after memory...\n");
			return IPACM_FAILURE;
		}
		memset(pFilteringTable, 0, len);

		pFilteringTable->commit = 1;
		pFilteringTable->ep = rx_prop->rx[0].src_pipe;
		pFilteringTable->ip = IPA_IP_v6;
		pFilteringTable->num_rules = 1;
		pFilteringTable->add_after_hdl = eth_bridge_flt_rule_offset[IPA_IP_v6];

		fd_ipa = open(IPA_DEVICE_NAME, O_RDWR);
		if(fd_ipa == 0)
		{
			IPACMERR("Failed to open %s\n",IPA_DEVICE_NAME);
			free(pFilteringTable);
			return IPACM_FAILURE;
		}

		rt_tbl.ip = IPA_IP_v6;
		snprintf(rt_tbl.name, sizeof(rt_tbl.name), "l2tp");
		rt_tbl.name[IPA_RESOURCE_NAME_MAX-1] = '\0';
		IPACMDBG_H("This flt rule points to rt tbl %s.\n", rt_tbl.name);
		if(m_routing.GetRoutingTable(&rt_tbl) == false)
		{
			IPACMERR("Failed to get routing table from name\n");
			free(pFilteringTable);
			close(fd_ipa);
			return IPACM_FAILURE;
		}

		memset(&flt_rule_entry, 0, sizeof(flt_rule_entry));
		flt_rule_entry.at_rear = 1;

		flt_rule_entry.rule.retain_hdr = 0;
		flt_rule_entry.rule.to_uc = 0;
		flt_rule_entry.rule.action = IPA_PASS_TO_ROUTING;
		flt_rule_entry.rule.eq_attrib_type = 0;
		flt_rule_entry.rule.rt_tbl_hdl = rt_tbl.hdl;
		flt_rule_entry.rule.hashable = false;	//ETH->WLAN direction rules need to be non-hashable due to encapsulation

		memcpy(&flt_rule_entry.rule.attrib, &rx_prop->rx[0].attrib, sizeof(flt_rule_entry.rule.attrib));

		/* flt rule is matching dst MAC within 62 bytes header */
		flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_MAC_DST_ADDR_L2TP;
		memset(flt_rule_entry.rule.attrib.dst_mac_addr_mask, 0xFF, sizeof(flt_rule_entry.rule.attrib.dst_mac_addr_mask));
		memcpy(flt_rule_entry.rule.attrib.dst_mac_addr, dst_mac, sizeof(flt_rule_entry.rule.attrib.dst_mac_addr));

		memcpy(&(pFilteringTable->rules[0]), &flt_rule_entry, sizeof(flt_rule_entry));
		if(m_filtering.AddFilteringRuleAfter(pFilteringTable) == false)
		{
			IPACMERR("Failed to add client filtering rules.\n");
			free(pFilteringTable);
			close(fd_ipa);
			return IPACM_FAILURE;
		}
		*flt_rule_hdl = pFilteringTable->rules[0].flt_rule_hdl;

		free(pFilteringTable);
		close(fd_ipa);
	}
	return IPACM_SUCCESS;
}

/* delete l2tp flt rule on l2tp interface */
int IPACM_Lan::del_l2tp_flt_rule(uint32_t flt_rule_hdl)
{
	if(m_filtering.DeleteFilteringHdls(&flt_rule_hdl, IPA_IP_v6, 1) == false)
	{
		return IPACM_FAILURE;
	}

	return IPACM_SUCCESS;
}

/* add l2tp flt rule on non l2tp interface */
int IPACM_Lan::add_l2tp_flt_rule(ipa_ip_type iptype, uint8_t *dst_mac, uint32_t *vlan_client_ipv6_addr,
	uint32_t *first_pass_flt_rule_hdl, uint32_t *second_pass_flt_rule_hdl)
{
	int len;
	struct ipa_flt_rule_add flt_rule_entry;
	struct ipa_ioc_add_flt_rule_after *pFilteringTable = NULL;
	ipa_ioc_get_rt_tbl rt_tbl;

	if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
	{
		if (rx_prop == NULL || tx_prop == NULL)
		{
			IPACMDBG_H("No rx or tx properties registered for iface %s\n", dev_name);
			return IPACM_FAILURE;
		}

		IPACMDBG_H("Dst client MAC 0x%02x%02x%02x%02x%02x%02x.\n", dst_mac[0], dst_mac[1],
			dst_mac[2], dst_mac[3], dst_mac[4], dst_mac[5]);

		len = sizeof(struct ipa_ioc_add_flt_rule_after) + sizeof(struct ipa_flt_rule_add);
		pFilteringTable = (struct ipa_ioc_add_flt_rule_after*)malloc(len);
		if (!pFilteringTable)
		{
			IPACMERR("Failed to allocate ipa_ioc_add_flt_rule_after memory...\n");
			return IPACM_FAILURE;
		}
		memset(pFilteringTable, 0, len);

		pFilteringTable->commit = 1;
		pFilteringTable->ep = rx_prop->rx[0].src_pipe;
		pFilteringTable->ip = iptype;
		pFilteringTable->num_rules = 1;
		pFilteringTable->add_after_hdl = eth_bridge_flt_rule_offset[iptype];

		/* =========== add first pass flt rule (match dst MAC) ============= */
		rt_tbl.ip = iptype;
		snprintf(rt_tbl.name, sizeof(rt_tbl.name), "l2tp");
		IPACMDBG_H("This flt rule points to rt tbl %s.\n", rt_tbl.name);

		if(m_routing.GetRoutingTable(&rt_tbl) == false)
		{
			IPACMERR("Failed to get routing table.\n");
			return IPACM_FAILURE;
		}

		memset(&flt_rule_entry, 0, sizeof(flt_rule_entry));
		flt_rule_entry.at_rear = 1;

		flt_rule_entry.rule.retain_hdr = 0;
		flt_rule_entry.rule.to_uc = 0;
		flt_rule_entry.rule.action = IPA_PASS_TO_ROUTING;
		flt_rule_entry.rule.eq_attrib_type = 0;
		flt_rule_entry.rule.rt_tbl_hdl = rt_tbl.hdl;
		flt_rule_entry.rule.hashable = false;	//WLAN->ETH direction rules are set to non-hashable to keep consistent with the other direction

		memcpy(&flt_rule_entry.rule.attrib, &rx_prop->rx[0].attrib, sizeof(flt_rule_entry.rule.attrib));
		if(tx_prop->tx[0].hdr_l2_type == IPA_HDR_L2_ETHERNET_II)
		{
			flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_MAC_DST_ADDR_ETHER_II;
		}
		else
		{
			flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_MAC_DST_ADDR_802_3;
		}

		memcpy(flt_rule_entry.rule.attrib.dst_mac_addr, dst_mac, sizeof(flt_rule_entry.rule.attrib.dst_mac_addr));
		memset(flt_rule_entry.rule.attrib.dst_mac_addr_mask, 0xFF, sizeof(flt_rule_entry.rule.attrib.dst_mac_addr_mask));

		memcpy(&(pFilteringTable->rules[0]), &flt_rule_entry, sizeof(flt_rule_entry));
		if (false == m_filtering.AddFilteringRuleAfter(pFilteringTable))
		{
			IPACMERR("Failed to add first pass filtering rules.\n");
			free(pFilteringTable);
			return IPACM_FAILURE;
		}
		*first_pass_flt_rule_hdl = pFilteringTable->rules[0].flt_rule_hdl;

		/* =========== add second pass flt rule (match VLAN interface IPv6 address at client side) ============= */
		if(*second_pass_flt_rule_hdl != 0)
		{
			IPACMDBG_H("Second pass flt rule was added before, return.\n");
			free(pFilteringTable);
			return IPACM_SUCCESS;
		}

		rt_tbl.ip = IPA_IP_v6;
		snprintf(rt_tbl.name, sizeof(rt_tbl.name), "l2tp");
		IPACMDBG_H("This flt rule points to rt tbl %s.\n", rt_tbl.name);

		if(m_routing.GetRoutingTable(&rt_tbl) == false)
		{
			IPACMERR("Failed to get routing table.\n");
			return IPACM_FAILURE;
		}

		pFilteringTable->ip = IPA_IP_v6;
		pFilteringTable->add_after_hdl = eth_bridge_flt_rule_offset[IPA_IP_v6];

		memset(&flt_rule_entry, 0, sizeof(flt_rule_entry));
		flt_rule_entry.at_rear = 1;

		flt_rule_entry.rule.retain_hdr = 0;
		flt_rule_entry.rule.to_uc = 0;
		flt_rule_entry.rule.action = IPA_PASS_TO_ROUTING;
		flt_rule_entry.rule.eq_attrib_type = 0;
		flt_rule_entry.rule.rt_tbl_hdl = rt_tbl.hdl;
		flt_rule_entry.rule.hashable = false;	//WLAN->ETH direction rules are set to non-hashable to keep consistent with the other direction

		memcpy(&flt_rule_entry.rule.attrib, &rx_prop->rx[0].attrib, sizeof(flt_rule_entry.rule.attrib));
		flt_rule_entry.rule.attrib.attrib_mask = IPA_FLT_DST_ADDR;

		memcpy(flt_rule_entry.rule.attrib.u.v6.dst_addr, vlan_client_ipv6_addr, sizeof(flt_rule_entry.rule.attrib.u.v6.dst_addr));
		memset(flt_rule_entry.rule.attrib.u.v6.dst_addr_mask, 0xFF, sizeof(flt_rule_entry.rule.attrib.u.v6.dst_addr_mask));

		memcpy(&(pFilteringTable->rules[0]), &flt_rule_entry, sizeof(flt_rule_entry));
		if (false == m_filtering.AddFilteringRuleAfter(pFilteringTable))
		{
			IPACMERR("Failed to add client filtering rules.\n");
			free(pFilteringTable);
			return IPACM_FAILURE;
		}
		*second_pass_flt_rule_hdl = pFilteringTable->rules[0].flt_rule_hdl;

		free(pFilteringTable);
	}
	return IPACM_SUCCESS;
}

/* delete l2tp flt rule on non l2tp interface */
int IPACM_Lan::del_l2tp_flt_rule(ipa_ip_type iptype, uint32_t first_pass_flt_rule_hdl, uint32_t second_pass_flt_rule_hdl)
{
	if(first_pass_flt_rule_hdl != 0)
	{
		if(m_filtering.DeleteFilteringHdls(&first_pass_flt_rule_hdl, iptype, 1) == false)
		{
			return IPACM_FAILURE;
		}
	}

	if(second_pass_flt_rule_hdl != 0)
	{
		if(m_filtering.DeleteFilteringHdls(&second_pass_flt_rule_hdl, iptype, 1) == false)
		{
			return IPACM_FAILURE;
		}
	}

	return IPACM_SUCCESS;
}

bool IPACM_Lan::is_unique_local_ipv6_addr(uint32_t* ipv6_addr)
{
	uint32_t ipv6_unique_local_prefix, ipv6_unique_local_prefix_mask;

	if(ipv6_addr == NULL)
	{
		IPACMERR("IPv6 address is empty.\n");
		return false;
	}
	IPACMDBG_H("Get ipv6 address with first word 0x%08x.\n", ipv6_addr[0]);

	ipv6_unique_local_prefix = 0xFD000000;
	ipv6_unique_local_prefix_mask = 0xFF000000;
	if((ipv6_addr[0] & ipv6_unique_local_prefix_mask) == (ipv6_unique_local_prefix & ipv6_unique_local_prefix_mask))
	{
		IPACMDBG_H("This IPv6 address is unique local IPv6 address.\n");
		return true;
	}
	return false;
}
#endif

/* add tcp syn flt rule */
int IPACM_Lan::add_tcp_syn_flt_rule(ipa_ip_type iptype)
{
	int len;
	struct ipa_flt_rule_add flt_rule_entry;
	ipa_ioc_add_flt_rule *m_pFilteringTable;
	bool result;

	if(rx_prop == NULL)
	{
		IPACMDBG_H("No rx properties registered for iface %s\n", dev_name);
		return IPACM_SUCCESS;
	}

	len = sizeof(struct ipa_ioc_add_flt_rule) + sizeof(struct ipa_flt_rule_add);
	m_pFilteringTable = (struct ipa_ioc_add_flt_rule *)malloc(len);
	if(!m_pFilteringTable)
	{
		PERROR("Not enough memory.\n");
		return IPACM_FAILURE;
	}
	memset(m_pFilteringTable, 0, len);

	m_pFilteringTable->commit = 1;
	m_pFilteringTable->ep = rx_prop->rx[0].src_pipe;
	m_pFilteringTable->global = false;
	m_pFilteringTable->ip = iptype;
	m_pFilteringTable->num_rules = 1;

	memset(&flt_rule_entry, 0, sizeof(flt_rule_entry));
	flt_rule_entry.at_rear = true;
	flt_rule_entry.rule.retain_hdr = 1;
	flt_rule_entry.flt_rule_hdl = -1;
	flt_rule_entry.status = -1;
	flt_rule_entry.rule.action = IPA_PASS_TO_EXCEPTION;

	memcpy(&flt_rule_entry.rule.attrib, &rx_prop->rx[0].attrib,
		sizeof(flt_rule_entry.rule.attrib));
	flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_TCP_SYN;
	if(iptype == IPA_IP_v4)
	{
		flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_PROTOCOL;
		flt_rule_entry.rule.attrib.u.v4.protocol = 6;
	}
	else
	{
		flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_NEXT_HDR;
		flt_rule_entry.rule.attrib.u.v6.next_hdr = 6;
	}

	memcpy(&(m_pFilteringTable->rules[0]), &flt_rule_entry, sizeof(flt_rule_entry));
#ifdef IPA_IOCTL_SET_FNR_COUNTER_INFO
	/* use index hw-counter */
	if(ipa_if_cate == WLAN_IF && IPACM_Iface::ipacmcfg->hw_fnr_stats_support)
	{
		IPACMDBG_H("hw-index-enable %d, counter %d\n", IPACM_Iface::ipacmcfg->hw_fnr_stats_support, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
		result = m_filtering.AddFilteringRule_hw_index(m_pFilteringTable, IPACM_Iface::ipacmcfg->hw_counter_offset + UL_ALL);
	} else {
		result = m_filtering.AddFilteringRule(m_pFilteringTable);
	}
#else
	result = m_filtering.AddFilteringRule(m_pFilteringTable);
#endif

	if(result == false)
	{
		IPACMERR("Error Adding RuleTable(0) to Filtering, aborting...\n");
		free(m_pFilteringTable);
		return IPACM_FAILURE;
	}

	tcp_syn_flt_rule_hdl[iptype] = m_pFilteringTable->rules[0].flt_rule_hdl;
	free(m_pFilteringTable);
	return IPACM_SUCCESS;
}

/* add tcp syn flt rule for l2tp interface*/
int IPACM_Lan::add_tcp_syn_flt_rule_l2tp(ipa_ip_type inner_ip_type)
{
	int len;
	struct ipa_flt_rule_add flt_rule_entry;
	ipa_ioc_add_flt_rule *m_pFilteringTable;

	if(rx_prop == NULL)
	{
		IPACMDBG_H("No rx properties registered for iface %s\n", dev_name);
		return IPACM_SUCCESS;
	}

	len = sizeof(struct ipa_ioc_add_flt_rule) + sizeof(struct ipa_flt_rule_add);
	m_pFilteringTable = (struct ipa_ioc_add_flt_rule *)malloc(len);
	if(!m_pFilteringTable)
	{
		PERROR("Not enough memory.\n");
		return IPACM_FAILURE;
	}
	memset(m_pFilteringTable, 0, len);

	m_pFilteringTable->commit = 1;
	m_pFilteringTable->ep = rx_prop->rx[0].src_pipe;
	m_pFilteringTable->global = false;
	m_pFilteringTable->ip = IPA_IP_v6;
	m_pFilteringTable->num_rules = 1;

	memset(&flt_rule_entry, 0, sizeof(flt_rule_entry));
	flt_rule_entry.at_rear = true;
	flt_rule_entry.rule.retain_hdr = 1;
	flt_rule_entry.flt_rule_hdl = -1;
	flt_rule_entry.status = -1;
	flt_rule_entry.rule.action = IPA_PASS_TO_EXCEPTION;

	memcpy(&flt_rule_entry.rule.attrib, &rx_prop->rx[0].attrib,
		sizeof(flt_rule_entry.rule.attrib));
	flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_TCP_SYN_L2TP;
	if(inner_ip_type == IPA_IP_v4)
	{
		flt_rule_entry.rule.attrib.ether_type = 0x0800;
	}
	else
	{
		flt_rule_entry.rule.attrib.ether_type = 0x86dd;
	}

	memcpy(&(m_pFilteringTable->rules[0]), &flt_rule_entry, sizeof(flt_rule_entry));
	/* no need for hw counters */
	if(false == m_filtering.AddFilteringRule(m_pFilteringTable))
	{
		IPACMERR("Error Adding RuleTable(0) to Filtering, aborting...\n");
		free(m_pFilteringTable);
		return IPACM_FAILURE;
	}

	tcp_syn_flt_rule_hdl[inner_ip_type] = m_pFilteringTable->rules[0].flt_rule_hdl;
	free(m_pFilteringTable);
	return IPACM_SUCCESS;
}

int IPACM_Lan::add_connection(int client_index, int v6_num)
{
	int len, res = IPACM_SUCCESS;
	uint8_t mux_id;
	ipa_ioc_add_flt_rule *pFilteringTable = NULL;
	int fd;

	mux_id = IPACM_Iface::ipacmcfg->GetQmapId();
	/* contruct filter rules to pcie modem */
	struct ipa_flt_rule_add flt_rule_entry;
	ipa_ioc_generate_flt_eq flt_eq;

	IPACMDBG("\n");
	len = sizeof(struct ipa_ioc_add_flt_rule) + sizeof(struct ipa_flt_rule_add);
	pFilteringTable = (struct ipa_ioc_add_flt_rule*)malloc(len);
	if (pFilteringTable == NULL)
	{
		IPACMERR("Error Locate ipa_flt_rule_add memory...\n");
		return IPACM_FAILURE;
	}
	memset(pFilteringTable, 0, len);


	pFilteringTable->commit = 1;
	pFilteringTable->global = false;
	pFilteringTable->ip = IPA_IP_v6;
	pFilteringTable->num_rules = (uint8_t)1;

	/* Configuring Filtering Rule */
	memset(&flt_rule_entry, 0, sizeof(struct ipa_flt_rule_add));
	flt_rule_entry.at_rear = true;
	flt_rule_entry.flt_rule_hdl = -1;
	flt_rule_entry.status = -1;

	flt_rule_entry.rule.retain_hdr = 1;
	flt_rule_entry.rule.to_uc = 0;
	flt_rule_entry.rule.eq_attrib_type = 1;
	flt_rule_entry.rule.action = IPA_PASS_TO_ROUTING;
	if (IPACM_Iface::ipacmcfg->isIPAv3Supported())
		flt_rule_entry.rule.hashable = true;
	flt_rule_entry.rule.attrib.attrib_mask |= IPA_FLT_DST_ADDR;
	flt_rule_entry.rule.attrib.u.v6.dst_addr[0] = get_client_memptr(eth_client, client_index)->v6_addr[v6_num][0];
	flt_rule_entry.rule.attrib.u.v6.dst_addr[1] = get_client_memptr(eth_client, client_index)->v6_addr[v6_num][1];
	flt_rule_entry.rule.attrib.u.v6.dst_addr[2] = get_client_memptr(eth_client, client_index)->v6_addr[v6_num][2];
	flt_rule_entry.rule.attrib.u.v6.dst_addr[3] = get_client_memptr(eth_client, client_index)->v6_addr[v6_num][3];
	flt_rule_entry.rule.attrib.u.v6.dst_addr_mask[0] = 0xFFFFFFFF;
	flt_rule_entry.rule.attrib.u.v6.dst_addr_mask[1] = 0xFFFFFFFF;
	flt_rule_entry.rule.attrib.u.v6.dst_addr_mask[2] = 0xFFFFFFFF;
	flt_rule_entry.rule.attrib.u.v6.dst_addr_mask[3] = 0xFFFFFFFF;

	IPACMDBG_H("ipv6 address got: 0x%x:%x:%x:%x\n", get_client_memptr(eth_client, client_index)->v6_addr[v6_num][0],
		get_client_memptr(eth_client, client_index)->v6_addr[v6_num][1],
		get_client_memptr(eth_client, client_index)->v6_addr[v6_num][2],
		get_client_memptr(eth_client, client_index)->v6_addr[v6_num][3]);

	/* change to network order for modem */
	change_to_network_order(IPA_IP_v6, &flt_rule_entry.rule.attrib);

	memset(&flt_eq, 0, sizeof(flt_eq));
	memcpy(&flt_eq.attrib, &flt_rule_entry.rule.attrib, sizeof(flt_eq.attrib));
	flt_eq.ip = IPA_IP_v6;

	fd = open(IPA_DEVICE_NAME, O_RDWR);
	if (fd < 0)
	{
		IPACMERR("Failed opening %s.\n", IPA_DEVICE_NAME);
		free(pFilteringTable);
		return IPACM_FAILURE;
	}

	if(0 != ioctl(fd, IPA_IOC_GENERATE_FLT_EQ, &flt_eq))
	{
		IPACMERR("Failed to get eq_attrib\n");
		res = IPACM_FAILURE;
		goto fail;
	}
	memcpy(&flt_rule_entry.rule.eq_attrib,
		&flt_eq.eq_attrib,
		sizeof(flt_rule_entry.rule.eq_attrib));
	memcpy(&(pFilteringTable->rules[0]), &flt_rule_entry, sizeof(struct ipa_flt_rule_add));

	if(false == m_filtering.AddOffloadFilteringRule(pFilteringTable, mux_id, 0))
	{
		IPACMERR("Failed to install WAN DL filtering table.\n");
		res = IPACM_FAILURE;
		goto fail;
	}

	get_client_memptr(eth_client, client_index)->v6_rt_rule_id[v6_num] = pFilteringTable->rules[0].flt_rule_hdl;
	IPACMDBG_H("%d-st client v6_num %d: id handle 0x%x\n", client_index, v6_num, get_client_memptr(eth_client, client_index)->v6_rt_rule_id[v6_num]);
fail:
	close(fd);
	if(pFilteringTable != NULL)
	{
		free(pFilteringTable);
	}
	return res;
}

int IPACM_Lan::del_connection(int client_index, int v6_num)
{
	int len, res = IPACM_SUCCESS;
	ipa_ioc_del_flt_rule *pFilteringTable = NULL;

	struct ipa_flt_rule_del flt_rule_entry;

	IPACMDBG("\n");
	len = sizeof(struct ipa_ioc_del_flt_rule) + sizeof(struct ipa_flt_rule_del);
	pFilteringTable = (struct ipa_ioc_del_flt_rule*)malloc(len);
	if (pFilteringTable == NULL)
	{
		IPACMERR("Error Locate ipa_ioc_del_flt_rule memory...\n");
		return IPACM_FAILURE;
	}
	memset(pFilteringTable, 0, len);


	pFilteringTable->commit = 1;
	pFilteringTable->ip = IPA_IP_v6;
	pFilteringTable->num_hdls = (uint8_t)1;

	/* Configuring Software-Routing Filtering Rule */
	memset(&flt_rule_entry, 0, sizeof(struct ipa_flt_rule_del));
	flt_rule_entry.hdl = get_client_memptr(eth_client, client_index)->v6_rt_rule_id[v6_num];

	memcpy(&(pFilteringTable->hdl[0]), &flt_rule_entry, sizeof(struct ipa_flt_rule_del));

	if(false == m_filtering.DelOffloadFilteringRule(pFilteringTable))
	{
		IPACMERR("Failed to install WAN DL filtering table.\n");
		res = IPACM_FAILURE;
		goto fail;
	}
	get_client_memptr(eth_client, client_index)->v6_rt_rule_id[v6_num] = 0;

fail:
	if(pFilteringTable != NULL)
	{
		free(pFilteringTable);
	}
	return res;
}

int IPACM_Lan::construct_mtu_rule(struct ipa_flt_rule *rule, ipa_ip_type iptype, uint16_t mtu)
{
	int res = IPACM_SUCCESS;
	int fd;
	ipa_ioc_generate_flt_eq flt_eq;

	if (rule == NULL)
	{
		IPACMERR("rule is empty");
		return IPACM_FAILURE;
	}

	if (mtu == 0)
	{
		IPACMERR("mtu is uninitialized");
		return IPACM_FAILURE;
	}

	IPACMDBG_H("Adding MTU rule for iptype = %d\n", iptype);

	rule->eq_attrib_type = 1;
	rule->eq_attrib.rule_eq_bitmap = 0;
	rule->action = IPA_PASS_TO_EXCEPTION;

	/* generate eq */
	memset(&flt_eq, 0, sizeof(flt_eq));
	memcpy(&flt_eq.attrib, &rule->attrib, sizeof(flt_eq.attrib));
	flt_eq.ip = iptype;

	fd = open(IPA_DEVICE_NAME, O_RDWR);
	if (fd < 0)
	{
		IPACMERR("Failed opening %s.\n", IPA_DEVICE_NAME);
		return IPACM_FAILURE;
	}

	if (0 != ioctl(fd, IPA_IOC_GENERATE_FLT_EQ, &flt_eq)) //define and cpy attribute to this struct
	{
		IPACMERR("Failed to get eq_attrib\n");
		res = IPACM_FAILURE;
		goto fail;
	}
	memcpy(&rule->eq_attrib,
		&flt_eq.eq_attrib, sizeof(rule->eq_attrib));

	//add IHL offsets
	rule->eq_attrib.rule_eq_bitmap |= (1<<10);
	rule->eq_attrib.num_ihl_offset_range_16 = 1;
	if (iptype == IPA_IP_v4)
		rule->eq_attrib.ihl_offset_range_16[0].offset = 0x82;
	else
		rule->eq_attrib.ihl_offset_range_16[0].offset = 0x84;
	rule->eq_attrib.ihl_offset_range_16[0].range_low = mtu + 1;
	rule->eq_attrib.ihl_offset_range_16[0].range_high = UINT16_MAX; //0xFFFF

fail:
	close(fd);
	return res;
}