ipacm/src/IPACM_LanToLan.cpp

/*
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*/
/*!
	@file
	IPACM_LanToLan.cpp

	@brief
	This file implements the functionality of offloading LAN to LAN traffic.

	@Author
	Shihuan Liu

*/

#include <stdlib.h>
#include "IPACM_LanToLan.h"
#include "IPACM_Wlan.h"

#define __stringify(x...) #x

const char *ipa_l2_hdr_type[] = {
	__stringify(NONE),
	__stringify(ETH_II),
	__stringify(802_3),
	__stringify(L2_MAX)
};

IPACM_LanToLan* IPACM_LanToLan::p_instance;

IPACM_LanToLan_Iface::IPACM_LanToLan_Iface(IPACM_Lan *p_iface)
{
	int i;

	m_p_iface = p_iface;
	memset(m_is_ip_addr_assigned, 0, sizeof(m_is_ip_addr_assigned));
	m_support_inter_iface_offload = true;
	m_support_intra_iface_offload = false;
	m_is_l2tp_iface = false;
	for(i = 0; i < IPA_HDR_L2_MAX; i++)
	{
		ref_cnt_peer_l2_hdr_type[i] = 0;
		hdr_proc_ctx_for_inter_interface[i] = 0;
	}
	hdr_proc_ctx_for_intra_interface = 0;
	hdr_proc_ctx_for_l2tp = 0;

	if(p_iface->ipa_if_cate == WLAN_IF)
	{
		IPACMDBG_H("Interface %s is WLAN interface.\n", p_iface->dev_name);
		m_support_intra_iface_offload = true;
		if( ((IPACM_Wlan*)p_iface)->is_guest_ap() )
		{
			IPACMDBG_H("Interface %s is guest AP.\n", p_iface->dev_name);
			m_support_inter_iface_offload = false;
		}
	}
	return;
}

IPACM_LanToLan_Iface::~IPACM_LanToLan_Iface()
{
}

IPACM_LanToLan::IPACM_LanToLan()
{
	IPACM_EvtDispatcher::registr(IPA_ETH_BRIDGE_IFACE_UP, this);
	IPACM_EvtDispatcher::registr(IPA_ETH_BRIDGE_IFACE_DOWN, this);
	IPACM_EvtDispatcher::registr(IPA_ETH_BRIDGE_CLIENT_ADD, this);
	IPACM_EvtDispatcher::registr(IPA_ETH_BRIDGE_CLIENT_DEL, this);
	IPACM_EvtDispatcher::registr(IPA_ETH_BRIDGE_WLAN_SCC_MCC_SWITCH, this);
	IPACM_EvtDispatcher::registr(IPA_ADD_VLAN_IFACE, this);
	IPACM_EvtDispatcher::registr(IPA_DEL_VLAN_IFACE, this);
	IPACM_EvtDispatcher::registr(IPA_ADD_L2TP_VLAN_MAPPING, this);
	IPACM_EvtDispatcher::registr(IPA_DEL_L2TP_VLAN_MAPPING, this);
	IPACM_EvtDispatcher::registr(IPA_HANDLE_VLAN_CLIENT_INFO, this);
	IPACM_EvtDispatcher::registr(IPA_HANDLE_VLAN_IFACE_INFO, this);

	m_has_l2tp_iface = false;

	return;
}

IPACM_LanToLan::~IPACM_LanToLan()
{
	IPACMDBG_DMESG("WARNING: UNEXPECTEDLY KILL LAN2LAN CONTROLLER!\n");
	return;
}

IPACM_LanToLan* IPACM_LanToLan::get_instance()
{
	if(p_instance == NULL)
	{
		p_instance = new IPACM_LanToLan();
		IPACMDBG_H("Created LanToLan instance.\n");
	}
	return p_instance;
}

bool IPACM_LanToLan::has_l2tp_iface()
{
	list<IPACM_LanToLan_Iface>::iterator it;
	bool has_l2tp_iface = false;

	for(it = m_iface.begin(); it != m_iface.end(); it++)
	{
		if(it->is_l2tp_iface() == true)
		{
			has_l2tp_iface = true;
			break;
		}
	}
	return has_l2tp_iface;
}

void IPACM_LanToLan::event_callback(ipa_cm_event_id event, void* param)
{
	ipacm_event_eth_bridge *eth_bridge_data;
	ipa_ioc_vlan_iface_info *vlan_iface_data;
	ipa_ioc_l2tp_vlan_mapping_info *l2tp_vlan_mapping_data;
	ipacm_event_data_all *vlan_data;

	IPACMDBG_H("Get %s event.\n", IPACM_Iface::ipacmcfg->getEventName(event));

	switch(event)
	{
		case IPA_ETH_BRIDGE_IFACE_UP:
		{
			eth_bridge_data = (ipacm_event_eth_bridge*)param;
			handle_iface_up(eth_bridge_data);
			break;
		}

		case IPA_ETH_BRIDGE_IFACE_DOWN:
		{
			eth_bridge_data = (ipacm_event_eth_bridge*)param;
			handle_iface_down(eth_bridge_data);
			break;
		}

		case IPA_ETH_BRIDGE_CLIENT_ADD:
		{
			eth_bridge_data = (ipacm_event_eth_bridge*)param;
			handle_client_add(eth_bridge_data);
			break;
		}

		case IPA_ETH_BRIDGE_CLIENT_DEL:
		{
			eth_bridge_data = (ipacm_event_eth_bridge*)param;
			handle_client_del(eth_bridge_data);
			break;
		}

		case IPA_ETH_BRIDGE_WLAN_SCC_MCC_SWITCH:
		{
			eth_bridge_data = (ipacm_event_eth_bridge*)param;
			handle_wlan_scc_mcc_switch(eth_bridge_data);
			break;
		}

		case IPA_ADD_VLAN_IFACE:
		{
			vlan_iface_data = (ipa_ioc_vlan_iface_info*)param;
			handle_add_vlan_iface(vlan_iface_data);
			break;
		}

		case IPA_DEL_VLAN_IFACE:
		{
			vlan_iface_data = (ipa_ioc_vlan_iface_info*)param;
			handle_del_vlan_iface(vlan_iface_data);
			break;
		}

		case IPA_ADD_L2TP_VLAN_MAPPING:
		{
			l2tp_vlan_mapping_data = (ipa_ioc_l2tp_vlan_mapping_info*)param;
			handle_add_l2tp_vlan_mapping(l2tp_vlan_mapping_data);
			break;
		}

		case IPA_DEL_L2TP_VLAN_MAPPING:
		{
			l2tp_vlan_mapping_data = (ipa_ioc_l2tp_vlan_mapping_info*)param;
			handle_del_l2tp_vlan_mapping(l2tp_vlan_mapping_data);
			break;
		}
		case IPA_HANDLE_VLAN_CLIENT_INFO:
		{
			vlan_data = (ipacm_event_data_all*)param;
			handle_vlan_client_info(vlan_data);
			break;
		}
		case IPA_HANDLE_VLAN_IFACE_INFO:
		{
			vlan_data = (ipacm_event_data_all*)param;
			handle_vlan_iface_info(vlan_data);
			break;
		}
		default:
			break;
	}

	print_data_structure_info();
	return;
}

void IPACM_LanToLan::handle_iface_up(ipacm_event_eth_bridge *data)
{
	list<IPACM_LanToLan_Iface>::iterator it;
	list<l2tp_vlan_mapping_info>::iterator it_mapping;
	bool has_l2tp_iface = false;

	IPACMDBG_H("Interface name: %s IP type: %d\n", data->p_iface->dev_name, data->iptype);
	for(it = m_iface.begin(); it != m_iface.end(); it++)
	{
		if(it->get_iface_pointer() == data->p_iface)
		{
			IPACMDBG_H("Found the interface.\n");
			if(it->get_m_is_ip_addr_assigned(data->iptype) == false)
			{
				IPACMDBG_H("IP type %d was not active before, activating it now.\n", data->iptype);
				it->set_m_is_ip_addr_assigned(data->iptype, true);

				/* install inter-interface rules */
				if(it->get_m_support_inter_iface_offload())
					it->add_all_inter_interface_client_flt_rule(data->iptype);

				/* install intra-BSS rules */
				if(it->get_m_support_intra_iface_offload())
					it->add_all_intra_interface_client_flt_rule(data->iptype);
			}
			break;
		}
	}

	if(it == m_iface.end())	//If the interface has not been created before
	{
		if(m_iface.size() == MAX_NUM_IFACE)
		{
			IPACMERR("The number of interfaces has reached maximum %d.\n", MAX_NUM_IFACE);
			return;
		}

		if(!data->p_iface->tx_prop || !data->p_iface->rx_prop)
		{
			IPACMERR("The interface %s does not have tx_prop or rx_prop.\n", data->p_iface->dev_name);
			return;
		}

		if(data->p_iface->tx_prop->tx[0].hdr_l2_type == IPA_HDR_L2_NONE || data->p_iface->tx_prop->tx[0].hdr_l2_type == IPA_HDR_L2_MAX)
		{
			IPACMERR("Invalid l2 header type %s!\n", ipa_l2_hdr_type[data->p_iface->tx_prop->tx[0].hdr_l2_type]);
			return;
		}

		IPACMDBG_H("Does not find the interface, insert a new one.\n");
		IPACM_LanToLan_Iface new_iface(data->p_iface);
		new_iface.set_m_is_ip_addr_assigned(data->iptype, true);

		m_iface.push_front(new_iface);
		IPACMDBG_H("Now the total number of interfaces is %d.\n", m_iface.size());

		IPACM_LanToLan_Iface &front_iface = m_iface.front();
#ifdef FEATURE_L2TP
		for(it_mapping = m_l2tp_vlan_mapping.begin(); it_mapping != m_l2tp_vlan_mapping.end(); it_mapping++)
		{
			if(front_iface.set_l2tp_iface(it_mapping->vlan_iface_name) == true)
			{
				has_l2tp_iface = true;
			}
		}

		if(m_has_l2tp_iface == false && has_l2tp_iface == true)
		{
			IPACMDBG_H("There is l2tp iface, add rt rules for l2tp iface.\n");
			m_has_l2tp_iface = true;
			for(it = ++m_iface.begin(); it != m_iface.end(); it++)
			{
				if(it->is_l2tp_iface() == false)
				{
					it->handle_l2tp_enable();
				}
			}
		}
#endif
		/* install inter-interface rules */
		if(front_iface.get_m_support_inter_iface_offload())
		{
			for(it = ++m_iface.begin(); it != m_iface.end(); it++)
			{
				/* add peer info only when both interfaces support inter-interface communication */
				if(it->get_m_support_inter_iface_offload())
				{
					/* populate hdr_proc_ctx and routing table handle */
					handle_new_iface_up(&front_iface, &(*it));

					/* add client specific routing rule on existing interface */
					it->add_client_rt_rule_for_new_iface();
				}
			}

			/* add client specific filtering rule on new interface */
			front_iface.add_all_inter_interface_client_flt_rule(data->iptype);
		}

		/* populate the intra-interface information */
		if(front_iface.get_m_support_intra_iface_offload())
		{
			front_iface.handle_intra_interface_info();
		}

		/* handle cached client add event */
		handle_cached_client_add_event(front_iface.get_iface_pointer());
	}
	return;
}

void IPACM_LanToLan::handle_iface_down(ipacm_event_eth_bridge *data)
{
	list<IPACM_LanToLan_Iface>::iterator it_target_iface;
	bool has_l2tp_iface = false;

	IPACMDBG_H("Interface name: %s\n", data->p_iface->dev_name);

	for(it_target_iface = m_iface.begin(); it_target_iface != m_iface.end(); it_target_iface++)
	{
		if(it_target_iface->get_iface_pointer() == data->p_iface)
		{
			IPACMDBG_H("Found the interface.\n");
			break;
		}
	}

	if(it_target_iface == m_iface.end())
	{
		IPACMDBG_H("The interface has not been found.\n");
		/* clear cached client add event for the unfound interface*/
		clear_cached_client_add_event(data->p_iface);
		return;
	}

	it_target_iface->handle_down_event();
	m_iface.erase(it_target_iface);
#ifdef FEATURE_L2TP
	for(it_target_iface = m_iface.begin(); it_target_iface != m_iface.end(); it_target_iface++)
	{
		if(it_target_iface->is_l2tp_iface() == true)
		{
			has_l2tp_iface = true;
			break;
		}
	}

	if(m_has_l2tp_iface == true && has_l2tp_iface == false)
	{
		IPACMDBG_H("There is no l2tp iface now, delete rt rules for l2tp iface.\n");
		m_has_l2tp_iface = false;
		for(it_target_iface = m_iface.begin(); it_target_iface != m_iface.end(); it_target_iface++)
		{
			if(it_target_iface->is_l2tp_iface() == false)
			{
				it_target_iface->handle_l2tp_disable();
			}
		}
	}
#endif
	return;
}

void IPACM_LanToLan::handle_new_iface_up(IPACM_LanToLan_Iface *new_iface, IPACM_LanToLan_Iface *exist_iface)
{
	char rt_tbl_name_for_flt[IPA_IP_MAX][IPA_RESOURCE_NAME_MAX];
	char rt_tbl_name_for_rt[IPA_IP_MAX][IPA_RESOURCE_NAME_MAX];

	IPACMDBG_H("Populate peer info between: new_iface %s, existing iface %s\n", new_iface->get_iface_pointer()->dev_name,
		exist_iface->get_iface_pointer()->dev_name);

	/* populate the routing table information */
	snprintf(rt_tbl_name_for_flt[IPA_IP_v4], IPA_RESOURCE_NAME_MAX, "eth_v4_%s_to_%s",
		ipa_l2_hdr_type[exist_iface->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type],
		ipa_l2_hdr_type[new_iface->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type]);
	IPACMDBG_H("IPv4 routing table for flt name: %s\n", rt_tbl_name_for_flt[IPA_IP_v4]);

	snprintf(rt_tbl_name_for_flt[IPA_IP_v6], IPA_RESOURCE_NAME_MAX, "eth_v6_%s_to_%s",
		ipa_l2_hdr_type[exist_iface->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type],
		ipa_l2_hdr_type[new_iface->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type]);
	IPACMDBG_H("IPv6 routing table for flt name: %s\n", rt_tbl_name_for_flt[IPA_IP_v6]);

	snprintf(rt_tbl_name_for_rt[IPA_IP_v4], IPA_RESOURCE_NAME_MAX, "eth_v4_%s_to_%s",
		ipa_l2_hdr_type[new_iface->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type],
		ipa_l2_hdr_type[exist_iface->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type]);
	IPACMDBG_H("IPv4 routing table for rt name: %s\n", rt_tbl_name_for_rt[IPA_IP_v4]);

	snprintf(rt_tbl_name_for_rt[IPA_IP_v6], IPA_RESOURCE_NAME_MAX, "eth_v6_%s_to_%s",
		ipa_l2_hdr_type[new_iface->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type],
		ipa_l2_hdr_type[exist_iface->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type]);
	IPACMDBG_H("IPv6 routing table for rt name: %s\n", rt_tbl_name_for_rt[IPA_IP_v6]);

	/* add new peer info in both new iface and existing iface */
	exist_iface->handle_new_iface_up(rt_tbl_name_for_flt, rt_tbl_name_for_rt, new_iface);

	new_iface->handle_new_iface_up(rt_tbl_name_for_rt, rt_tbl_name_for_flt, exist_iface);

	return;
}

void IPACM_LanToLan::handle_client_add(ipacm_event_eth_bridge *data)
{
	list<IPACM_LanToLan_Iface>::iterator it_iface;
	list<l2tp_vlan_mapping_info>::iterator it_mapping;
	l2tp_vlan_mapping_info *mapping_info = NULL;
	bool is_l2tp_client = false;

	IPACMDBG_H("Incoming client MAC: 0x%02x%02x%02x%02x%02x%02x, interface: %s\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], data->p_iface->dev_name);
#ifdef FEATURE_L2TP
	for(it_mapping = m_l2tp_vlan_mapping.begin(); it_mapping != m_l2tp_vlan_mapping.end(); it_mapping++)
	{
		if(strncmp(it_mapping->l2tp_iface_name, data->iface_name,
			sizeof(it_mapping->l2tp_iface_name)) == 0)
		{
			IPACMDBG_H("Found l2tp iface %s with l2tp client MAC 0x%02x%02x%02x%02x%02x%02x\n",
				it_mapping->l2tp_iface_name, it_mapping->l2tp_client_mac[0], it_mapping->l2tp_client_mac[1],
				it_mapping->l2tp_client_mac[2], it_mapping->l2tp_client_mac[3], it_mapping->l2tp_client_mac[4],
				it_mapping->l2tp_client_mac[5]);
			memcpy(it_mapping->l2tp_client_mac, data->mac_addr, sizeof(it_mapping->l2tp_client_mac));
			mapping_info = &(*it_mapping);
			is_l2tp_client = true;
			break;
		}
	}
#endif
	for(it_iface = m_iface.begin(); it_iface != m_iface.end(); it_iface++)
	{
		if(it_iface->get_iface_pointer() == data->p_iface)	//find the interface
		{
			IPACMDBG_H("Found the interface.\n");
			it_iface->handle_client_add(data->mac_addr, is_l2tp_client, mapping_info);
			break;
		}
	}

	/* if the iface was not found, cache the client add event */
	if(it_iface == m_iface.end())
	{
		IPACMDBG_H("The interface is not found.\n");
		if(m_cached_client_add_event.size() < MAX_NUM_CACHED_CLIENT_ADD_EVENT)
		{
			IPACMDBG_H("Cached the client information.\n");
			m_cached_client_add_event.push_front(*data);
		}
		else
		{
			IPACMDBG_H("Cached client add event has reached maximum number.\n");
		}
	}
	return;
}

void IPACM_LanToLan::handle_client_del(ipacm_event_eth_bridge *data)
{
	list<IPACM_LanToLan_Iface>::iterator it_iface;

	IPACMDBG_H("Incoming client MAC: 0x%02x%02x%02x%02x%02x%02x, interface: %s\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], data->p_iface->dev_name);

	for(it_iface = m_iface.begin(); it_iface != m_iface.end(); it_iface++)
	{
		if(it_iface->get_iface_pointer() == data->p_iface)	//found the interface
		{
			IPACMDBG_H("Found the interface.\n");
			it_iface->handle_client_del(data->mac_addr);
			break;
		}
	}

	if(it_iface == m_iface.end())
	{
		IPACMDBG_H("The interface is not found.\n");
	}

	return;
}

void IPACM_LanToLan::handle_wlan_scc_mcc_switch(ipacm_event_eth_bridge *data)
{
	list<IPACM_LanToLan_Iface>::iterator it_iface;

	IPACMDBG_H("Incoming interface: %s\n", data->p_iface->dev_name);
	for(it_iface = m_iface.begin(); it_iface != m_iface.end(); it_iface++)
	{
		if(it_iface->get_iface_pointer() == data->p_iface)
		{
			it_iface->handle_wlan_scc_mcc_switch();
			break;
		}
	}
	return;
}

void IPACM_LanToLan::handle_add_vlan_iface(ipa_ioc_vlan_iface_info *data)
{
	list<vlan_iface_info>::iterator it_vlan;
	list<l2tp_vlan_mapping_info>::iterator it_mapping;
	vlan_iface_info new_vlan_info;

	IPACMDBG_H("Vlan iface: %s vlan id: %d\n", data->name, data->vlan_id);
	for(it_vlan = m_vlan_iface.begin(); it_vlan != m_vlan_iface.end(); it_vlan++)
	{
		if(strncmp(it_vlan->vlan_iface_name, data->name, sizeof(it_vlan->vlan_iface_name)) == 0)
		{
			IPACMERR("The vlan iface was added before with id %d\n", it_vlan->vlan_id);
			return;
		}
	}

	for(it_mapping = m_l2tp_vlan_mapping.begin(); it_mapping != m_l2tp_vlan_mapping.end(); it_mapping++)
	{
		if(strncmp(data->name, it_mapping->vlan_iface_name, sizeof(data->name)) == 0)
		{
			IPACMDBG_H("Found a mapping: l2tp iface %s.\n", it_mapping->l2tp_iface_name);
			it_mapping->vlan_id = data->vlan_id;
		}
	}

	memset(&new_vlan_info, 0 , sizeof(new_vlan_info));
	strlcpy(new_vlan_info.vlan_iface_name, data->name, sizeof(new_vlan_info.vlan_iface_name));
	new_vlan_info.vlan_id = data->vlan_id;
	m_vlan_iface.push_front(new_vlan_info);
	return;
}

void IPACM_LanToLan::handle_del_vlan_iface(ipa_ioc_vlan_iface_info *data)
{
	list<vlan_iface_info>::iterator it_vlan;
	list<l2tp_vlan_mapping_info>::iterator it_mapping;

	IPACMDBG_H("Vlan iface: %s vlan id: %d\n", data->name, data->vlan_id);
	for(it_vlan = m_vlan_iface.begin(); it_vlan != m_vlan_iface.end(); it_vlan++)
	{
		if(strncmp(it_vlan->vlan_iface_name, data->name, sizeof(it_vlan->vlan_iface_name)) == 0)
		{
			IPACMDBG_H("Found the vlan interface\n");
			m_vlan_iface.erase(it_vlan);
			break;
		}
	}

	it_mapping = m_l2tp_vlan_mapping.begin();
	while(it_mapping != m_l2tp_vlan_mapping.end())
	{
		if(strncmp(data->name, it_mapping->vlan_iface_name, sizeof(data->name)) == 0)
		{
			IPACMDBG_H("Delete mapping with l2tp iface %s\n", it_mapping->l2tp_iface_name);
			it_mapping = m_l2tp_vlan_mapping.erase(it_mapping);
		}
		else
		{
			it_mapping++;
		}
	}
	return;
}

void IPACM_LanToLan::handle_add_l2tp_vlan_mapping(ipa_ioc_l2tp_vlan_mapping_info *data)
{
	list<l2tp_vlan_mapping_info>::iterator it_mapping;
	list<vlan_iface_info>::iterator it_vlan;
	list<IPACM_LanToLan_Iface>::iterator it_iface;
	l2tp_vlan_mapping_info new_mapping;
	bool has_l2tp_iface = false;

	IPACMDBG_H("L2tp iface: %s session id: %d vlan iface: %s \n",
		data->l2tp_iface_name, data->l2tp_session_id, data->vlan_iface_name);
	for(it_mapping = m_l2tp_vlan_mapping.begin(); it_mapping != m_l2tp_vlan_mapping.end(); it_mapping++)
	{
		if(strncmp(data->l2tp_iface_name, it_mapping->l2tp_iface_name,
			sizeof(data->l2tp_iface_name)) == 0)
		{
			IPACMERR("L2tp mapping was added before mapped to vlan %s.\n", it_mapping->vlan_iface_name);
			return;
		}
	}
	memset(&new_mapping, 0, sizeof(new_mapping));
	strlcpy(new_mapping.l2tp_iface_name, data->l2tp_iface_name,
		sizeof(new_mapping.l2tp_iface_name));
	strlcpy(new_mapping.vlan_iface_name, data->vlan_iface_name,
		sizeof(new_mapping.vlan_iface_name));
	new_mapping.l2tp_session_id = data->l2tp_session_id;

	for(it_vlan = m_vlan_iface.begin(); it_vlan != m_vlan_iface.end(); it_vlan++)
	{
		if(strncmp(it_vlan->vlan_iface_name, data->vlan_iface_name, sizeof(it_vlan->vlan_iface_name)) == 0)
		{
			IPACMDBG_H("Found vlan iface with id %d\n", it_vlan->vlan_id);
			new_mapping.vlan_id = it_vlan->vlan_id;
			memcpy(new_mapping.vlan_iface_ipv6_addr, it_vlan->vlan_iface_ipv6_addr,
				sizeof(new_mapping.vlan_iface_ipv6_addr));
			memcpy(new_mapping.vlan_client_mac, it_vlan->vlan_client_mac,
				sizeof(new_mapping.vlan_client_mac));
			memcpy(new_mapping.vlan_client_ipv6_addr, it_vlan->vlan_client_ipv6_addr,
				sizeof(new_mapping.vlan_client_ipv6_addr));
			break;
		}
	}
	m_l2tp_vlan_mapping.push_front(new_mapping);

	for(it_iface = m_iface.begin(); it_iface != m_iface.end(); it_iface++)
	{
		if(it_iface->set_l2tp_iface(data->vlan_iface_name) == true)
		{
			has_l2tp_iface = true;
		}
	}

	if(m_has_l2tp_iface == false && has_l2tp_iface == true)
	{
		IPACMDBG_H("There is l2tp iface, add rt rules for l2tp iface.\n");
		m_has_l2tp_iface = true;
		for(it_iface = m_iface.begin(); it_iface != m_iface.end(); it_iface++)
		{
			if(it_iface->is_l2tp_iface() == false)
			{
				it_iface->handle_l2tp_enable();
			}
		}
	}
	return;
}

void IPACM_LanToLan::handle_del_l2tp_vlan_mapping(ipa_ioc_l2tp_vlan_mapping_info *data)
{
	list<l2tp_vlan_mapping_info>::iterator it;
	list<IPACM_LanToLan_Iface>::iterator it_iface;

	IPACMDBG_H("L2tp iface: %s session id: %d vlan iface: %s \n",
		data->l2tp_iface_name, data->l2tp_session_id, data->vlan_iface_name);
	for(it = m_l2tp_vlan_mapping.begin(); it != m_l2tp_vlan_mapping.end(); it++)
	{
		if(strncmp(data->l2tp_iface_name, it->l2tp_iface_name,
			sizeof(data->l2tp_iface_name)) == 0)
		{
			IPACMDBG_H("Found l2tp iface mapped to vlan %s.\n", it->vlan_iface_name);
			if(strncmp(data->vlan_iface_name, it->vlan_iface_name,
				sizeof(data->vlan_iface_name)) == 0)
			{
				m_l2tp_vlan_mapping.erase(it);
			}
			else
			{
				IPACMERR("Incoming mapping is incorrect.\n");
			}
			break;
		}
	}
	return;
}

void IPACM_LanToLan::handle_vlan_client_info(ipacm_event_data_all *data)
{
	list<l2tp_vlan_mapping_info>::iterator it_mapping;
	list<vlan_iface_info>::iterator it_vlan;

	IPACMDBG_H("Incoming vlan client iface: %s IPv6 address: 0x%08x%08x%08x%08x\n", data->iface_name,
		data->ipv6_addr[0], data->ipv6_addr[1], data->ipv6_addr[2], data->ipv6_addr[3]);
	IPACMDBG_H("MAC address: 0x%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]);

	for(it_vlan = m_vlan_iface.begin(); it_vlan != m_vlan_iface.end(); it_vlan++)
	{
		if(strncmp(it_vlan->vlan_iface_name, data->iface_name, sizeof(it_vlan->vlan_iface_name)) == 0)
		{
			IPACMDBG_H("Found vlan iface in vlan list: %s\n", it_vlan->vlan_iface_name);
			if(it_vlan->vlan_client_ipv6_addr[0] > 0 || it_vlan->vlan_client_ipv6_addr[1] > 0 ||
				it_vlan->vlan_client_ipv6_addr[2] > 0 || it_vlan->vlan_client_ipv6_addr[3] > 0)
			{
				IPACMDBG_H("Vlan client info has been populated before, return.\n");
				return;
			}
			memcpy(it_vlan->vlan_client_mac, data->mac_addr, sizeof(it_vlan->vlan_client_mac));
			memcpy(it_vlan->vlan_client_ipv6_addr, data->ipv6_addr, sizeof(it_vlan->vlan_client_ipv6_addr));
		}
	}

	for(it_mapping = m_l2tp_vlan_mapping.begin(); it_mapping != m_l2tp_vlan_mapping.end(); it_mapping++)
	{
		if(strncmp(it_mapping->vlan_iface_name, data->iface_name, sizeof(it_mapping->vlan_iface_name)) == 0)
		{
			IPACMDBG_H("Found vlan iface in l2tp mapping list: %s, l2tp iface: %s\n", it_mapping->vlan_iface_name,
				it_mapping->l2tp_iface_name);
			memcpy(it_mapping->vlan_client_mac, data->mac_addr, sizeof(it_mapping->vlan_client_mac));
			memcpy(it_mapping->vlan_client_ipv6_addr, data->ipv6_addr, sizeof(it_mapping->vlan_client_ipv6_addr));
		}
	}
	return;
}

void IPACM_LanToLan::handle_vlan_iface_info(ipacm_event_data_all *data)
{
	list<vlan_iface_info>::iterator it_vlan;
	list<l2tp_vlan_mapping_info>::iterator it_mapping;

	IPACMDBG_H("Incoming vlan iface: %s IPv6 address: 0x%08x%08x%08x%08x\n", data->iface_name,
		data->ipv6_addr[0], data->ipv6_addr[1], data->ipv6_addr[2], data->ipv6_addr[3]);

	for(it_vlan = m_vlan_iface.begin(); it_vlan != m_vlan_iface.end(); it_vlan++)
	{
		if(strncmp(it_vlan->vlan_iface_name, data->iface_name,
			sizeof(it_vlan->vlan_iface_name)) == 0)
		{
			IPACMDBG_H("Found vlan iface: %s\n", it_vlan->vlan_iface_name);
			memcpy(it_vlan->vlan_iface_ipv6_addr, data->ipv6_addr,
				sizeof(it_vlan->vlan_iface_ipv6_addr));

			for(it_mapping = m_l2tp_vlan_mapping.begin(); it_mapping != m_l2tp_vlan_mapping.end(); it_mapping++)
			{
				if(strncmp(it_mapping->vlan_iface_name, it_vlan->vlan_iface_name,
					sizeof(it_mapping->vlan_iface_name)) == 0)
				{
					IPACMDBG_H("Found the l2tp-vlan mapping: l2tp %s\n", it_mapping->l2tp_iface_name);
					memcpy(it_mapping->vlan_iface_ipv6_addr, data->ipv6_addr,
						sizeof(it_mapping->vlan_iface_ipv6_addr));
				}
			}
			break;
		}
	}

	if(it_vlan == m_vlan_iface.end())
	{
		IPACMDBG_H("Failed to find the vlan iface: %s\n", data->iface_name);
	}
	return;
}

void IPACM_LanToLan::handle_cached_client_add_event(IPACM_Lan *p_iface)
{
	list<ipacm_event_eth_bridge>::iterator it;

	it = m_cached_client_add_event.begin();
	while(it != m_cached_client_add_event.end())
	{
		if(it->p_iface == p_iface)
		{
			IPACMDBG_H("Found client with MAC: 0x%02x%02x%02x%02x%02x%02x\n", it->mac_addr[0], it->mac_addr[1],
				it->mac_addr[2], it->mac_addr[3], it->mac_addr[4], it->mac_addr[5]);
			handle_client_add(&(*it));
			it = m_cached_client_add_event.erase(it);
		}
		else
		{
			it++;
		}
	}
	return;
}

void IPACM_LanToLan::clear_cached_client_add_event(IPACM_Lan *p_iface)
{
	list<ipacm_event_eth_bridge>::iterator it;

	it = m_cached_client_add_event.begin();
	while(it != m_cached_client_add_event.end())
	{
		if(it->p_iface == p_iface)
		{
			IPACMDBG_H("Found client with MAC: 0x%02x%02x%02x%02x%02x%02x\n", it->mac_addr[0], it->mac_addr[1],
				it->mac_addr[2], it->mac_addr[3], it->mac_addr[4], it->mac_addr[5]);
			it = m_cached_client_add_event.erase(it);
		}
		else
		{
			it++;
		}
	}
	return;
}

void IPACM_LanToLan::print_data_structure_info()
{
	list<IPACM_LanToLan_Iface>::iterator it;
	list<ipacm_event_eth_bridge>::iterator it_event;
	list<vlan_iface_info>::iterator it_vlan;
	list<l2tp_vlan_mapping_info>::iterator it_mapping;
	int i;

	IPACMDBG_H("Is there l2tp interface? %d\n", m_has_l2tp_iface);

	IPACMDBG_H("There are %d vlan interfaces.\n", m_vlan_iface.size());
	for(it_vlan = m_vlan_iface.begin(); it_vlan != m_vlan_iface.end(); it_vlan++)
	{
		IPACMDBG_H("Vlan iface: %s, id: %d, ipv6 addr: 0x%08x%08x%08x%08x\n", it_vlan->vlan_iface_name,
			it_vlan->vlan_id, it_vlan->vlan_iface_ipv6_addr[0], it_vlan->vlan_iface_ipv6_addr[1],
			it_vlan->vlan_iface_ipv6_addr[2], it_vlan->vlan_iface_ipv6_addr[3]);
		IPACMDBG_H("Vlan client mac: 0x%02x%02x%02x%02x%02x%02x, ipv6 addr: 0x%08x%08x%08x%08x\n",
			it_vlan->vlan_client_mac[0], it_vlan->vlan_client_mac[1], it_vlan->vlan_client_mac[2],
			it_vlan->vlan_client_mac[3], it_vlan->vlan_client_mac[4], it_vlan->vlan_client_mac[5],
			it_vlan->vlan_client_ipv6_addr[0], it_vlan->vlan_client_ipv6_addr[1], it_vlan->vlan_client_ipv6_addr[2],
			it_vlan->vlan_client_ipv6_addr[3]);
	}

	IPACMDBG_H("There are %d vlan-l2tp mapping.\n", m_l2tp_vlan_mapping.size());
	for(it_mapping = m_l2tp_vlan_mapping.begin(); it_mapping != m_l2tp_vlan_mapping.end(); it_mapping++)
	{
		IPACMDBG_H("L2tp iface: %s, session id: %d\n", it_mapping->l2tp_iface_name, it_mapping->l2tp_session_id);
		IPACMDBG_H("Vlan iface: %s, id: %d, ipv6 addr: 0x%08x%08x%08x%08x\n", it_mapping->vlan_iface_name,
			it_mapping->vlan_id, it_mapping->vlan_iface_ipv6_addr[0], it_mapping->vlan_iface_ipv6_addr[1],
			it_mapping->vlan_iface_ipv6_addr[2], it_mapping->vlan_iface_ipv6_addr[3]);
		IPACMDBG_H("Vlan client mac: 0x%02x%02x%02x%02x%02x%02x, ipv6 addr: 0x%08x%08x%08x%08x\n",
			it_mapping->vlan_client_mac[0], it_mapping->vlan_client_mac[1], it_mapping->vlan_client_mac[2],
			it_mapping->vlan_client_mac[3], it_mapping->vlan_client_mac[4], it_mapping->vlan_client_mac[5],
			it_mapping->vlan_client_ipv6_addr[0], it_mapping->vlan_client_ipv6_addr[1], it_mapping->vlan_client_ipv6_addr[2],
			it_mapping->vlan_client_ipv6_addr[3]);
		IPACMDBG_H("L2tp client mac: 0x%02x%02x%02x%02x%02x%02x\n", it_mapping->l2tp_client_mac[0], it_mapping->l2tp_client_mac[1],
			it_mapping->l2tp_client_mac[2], it_mapping->l2tp_client_mac[3], it_mapping->l2tp_client_mac[4], it_mapping->l2tp_client_mac[5]);
	}

	IPACMDBG_H("There are %d interfaces in total.\n", m_iface.size());
	for(it = m_iface.begin(); it != m_iface.end(); it++)
	{
		it->print_data_structure_info();
	}

	IPACMDBG_H("There are %d cached client add events in total.\n", m_cached_client_add_event.size());

	i = 1;
	for(it_event = m_cached_client_add_event.begin(); it_event != m_cached_client_add_event.end(); it_event++)
	{
		IPACMDBG_H("Client %d MAC: 0x%02x%02x%02x%02x%02x%02x, interface: %s\n", i, it_event->mac_addr[0], it_event->mac_addr[1], it_event->mac_addr[2],
			it_event->mac_addr[3], it_event->mac_addr[4], it_event->mac_addr[5], it_event->p_iface->dev_name);
		i++;
	}

	return;
}

void IPACM_LanToLan_Iface::add_client_rt_rule_for_new_iface()
{
	list<client_info>::iterator it;
	ipa_hdr_l2_type peer_l2_type;
	peer_iface_info &peer = m_peer_iface_info.front();

	peer_l2_type = peer.peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type;
	if(ref_cnt_peer_l2_hdr_type[peer_l2_type] == 1)
	{
		for(it = m_client_info.begin(); it != m_client_info.end(); it++)
		{
#ifdef FEATURE_L2TP
			if(it->is_l2tp_client == false)
			{
				add_client_rt_rule(&peer, &(*it));
			}
			/* add l2tp rt rules */
			add_l2tp_client_rt_rule(&peer, &(*it));
#else
			add_client_rt_rule(&peer, &(*it));
#endif
		}
	}

	return;
}

void IPACM_LanToLan_Iface::add_client_rt_rule(peer_iface_info *peer_info, client_info *client)
{
	int i, num_rt_rule;
	uint32_t rt_rule_hdl[MAX_NUM_PROP];
	ipa_hdr_l2_type peer_l2_hdr_type;

	peer_l2_hdr_type = peer_info->peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type;

	/* if the peer info is not for intra interface communication */
	if(peer_info->peer != this)
	{
		IPACMDBG_H("This is for inter interface communication.\n");

		m_p_iface->eth_bridge_add_rt_rule(client->mac_addr, peer_info->rt_tbl_name_for_rt[IPA_IP_v4], hdr_proc_ctx_for_inter_interface[peer_l2_hdr_type],
			peer_l2_hdr_type, IPA_IP_v4, rt_rule_hdl, &num_rt_rule);

		client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].num_hdl[IPA_IP_v4] = num_rt_rule;
		IPACMDBG_H("Number of IPv4 routing rule is %d.\n", num_rt_rule);
		for(i=0; i<num_rt_rule; i++)
		{
			IPACMDBG_H("Routing rule %d handle %d\n", i, rt_rule_hdl[i]);
			client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].rule_hdl[IPA_IP_v4][i] = rt_rule_hdl[i];
		}

		m_p_iface->eth_bridge_add_rt_rule(client->mac_addr, peer_info->rt_tbl_name_for_rt[IPA_IP_v6], hdr_proc_ctx_for_inter_interface[peer_l2_hdr_type],
			peer_l2_hdr_type, IPA_IP_v6, rt_rule_hdl, &num_rt_rule);

		client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].num_hdl[IPA_IP_v6] = num_rt_rule;
		IPACMDBG_H("Number of IPv6 routing rule is %d.\n", num_rt_rule);
		for(i=0; i<num_rt_rule; i++)
		{
			IPACMDBG_H("Routing rule %d handle %d\n", i, rt_rule_hdl[i]);
			client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].rule_hdl[IPA_IP_v6][i] = rt_rule_hdl[i];
		}
	}
	else
	{
		IPACMDBG_H("This is for intra interface communication.\n");
		m_p_iface->eth_bridge_add_rt_rule(client->mac_addr, peer_info->rt_tbl_name_for_rt[IPA_IP_v4], hdr_proc_ctx_for_intra_interface,
			peer_l2_hdr_type, IPA_IP_v4, rt_rule_hdl, &num_rt_rule);

		client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v4] = num_rt_rule;
		IPACMDBG_H("Number of IPv4 routing rule is %d.\n", num_rt_rule);
		for(i=0; i<num_rt_rule; i++)
		{
			IPACMDBG_H("Routing rule %d handle %d\n", i, rt_rule_hdl[i]);
			client->intra_iface_rt_rule_hdl.rule_hdl[IPA_IP_v4][i] = rt_rule_hdl[i];
		}

		m_p_iface->eth_bridge_add_rt_rule(client->mac_addr, peer_info->rt_tbl_name_for_rt[IPA_IP_v6], hdr_proc_ctx_for_intra_interface,
			peer_l2_hdr_type, IPA_IP_v6, rt_rule_hdl, &num_rt_rule);

		client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v6] = num_rt_rule;
		IPACMDBG_H("Number of IPv6 routing rule is %d.\n", num_rt_rule);
		for(i=0; i<num_rt_rule; i++)
		{
			IPACMDBG_H("Routing rule %d handle %d\n", i, rt_rule_hdl[i]);
			client->intra_iface_rt_rule_hdl.rule_hdl[IPA_IP_v6][i] = rt_rule_hdl[i];
		}
	}

	return;
}

void IPACM_LanToLan_Iface::add_l2tp_client_rt_rule(peer_iface_info *peer, client_info *client)
{
	ipa_hdr_l2_type peer_l2_hdr_type;
	l2tp_vlan_mapping_info *mapping_info;

	peer_l2_hdr_type = peer->peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type;
	mapping_info = client->mapping_info;
	if(client->is_l2tp_client)
	{
		m_p_iface->add_l2tp_rt_rule(IPA_IP_v4, client->mac_addr, peer_l2_hdr_type, mapping_info->l2tp_session_id,
			mapping_info->vlan_id, mapping_info->vlan_client_mac, mapping_info->vlan_iface_ipv6_addr,
			mapping_info->vlan_client_ipv6_addr, &client->l2tp_rt_rule_hdl[peer_l2_hdr_type].first_pass_hdr_hdl,
			&client->l2tp_rt_rule_hdl[peer_l2_hdr_type].first_pass_hdr_proc_ctx_hdl[IPA_IP_v4], &client->l2tp_rt_rule_hdl[peer_l2_hdr_type].second_pass_hdr_hdl,
			&client->l2tp_rt_rule_hdl[peer_l2_hdr_type].num_rt_hdl[IPA_IP_v4], client->l2tp_rt_rule_hdl[peer_l2_hdr_type].first_pass_rt_rule_hdl[IPA_IP_v4],
			client->l2tp_rt_rule_hdl[peer_l2_hdr_type].second_pass_rt_rule_hdl);

		m_p_iface->add_l2tp_rt_rule(IPA_IP_v6, client->mac_addr, peer_l2_hdr_type, mapping_info->l2tp_session_id,
			mapping_info->vlan_id, mapping_info->vlan_client_mac, mapping_info->vlan_iface_ipv6_addr,
			mapping_info->vlan_client_ipv6_addr, &client->l2tp_rt_rule_hdl[peer_l2_hdr_type].first_pass_hdr_hdl,
			&client->l2tp_rt_rule_hdl[peer_l2_hdr_type].first_pass_hdr_proc_ctx_hdl[IPA_IP_v6], &client->l2tp_rt_rule_hdl[peer_l2_hdr_type].second_pass_hdr_hdl,
			&client->l2tp_rt_rule_hdl[peer_l2_hdr_type].num_rt_hdl[IPA_IP_v6], client->l2tp_rt_rule_hdl[peer_l2_hdr_type].first_pass_rt_rule_hdl[IPA_IP_v6],
			client->l2tp_rt_rule_hdl[peer_l2_hdr_type].second_pass_rt_rule_hdl);
	}
	else
	{
		if(IPACM_LanToLan::get_instance()->has_l2tp_iface() == true)
		{
			m_p_iface->add_l2tp_rt_rule(IPA_IP_v6, client->mac_addr, &hdr_proc_ctx_for_l2tp, &client->l2tp_rt_rule_hdl[peer_l2_hdr_type].num_rt_hdl[IPA_IP_v6],
				client->l2tp_rt_rule_hdl[peer_l2_hdr_type].first_pass_rt_rule_hdl[IPA_IP_v6]);
		}
	}
	return;
}

void IPACM_LanToLan_Iface::add_all_inter_interface_client_flt_rule(ipa_ip_type iptype)
{
	list<peer_iface_info>::iterator it_iface;
	list<client_info>::iterator it_client;

	for(it_iface = m_peer_iface_info.begin(); it_iface != m_peer_iface_info.end(); it_iface++)
	{
		IPACMDBG_H("Add flt rules for clients of interface %s.\n", it_iface->peer->get_iface_pointer()->dev_name);
		for(it_client = it_iface->peer->m_client_info.begin(); it_client != it_iface->peer->m_client_info.end(); it_client++)
		{
			add_client_flt_rule(&(*it_iface), &(*it_client), iptype);
		}
	}
	return;
}

void IPACM_LanToLan_Iface::add_all_intra_interface_client_flt_rule(ipa_ip_type iptype)
{
	list<client_info>::iterator it_client;

	IPACMDBG_H("Add flt rules for own clients.\n");
	for(it_client = m_client_info.begin(); it_client != m_client_info.end(); it_client++)
	{
		add_client_flt_rule(&m_intra_interface_info, &(*it_client), iptype);
	}

	return;
}

void IPACM_LanToLan_Iface::add_one_client_flt_rule(IPACM_LanToLan_Iface *peer_iface, client_info *client)
{
	list<peer_iface_info>::iterator it;

	for(it = m_peer_iface_info.begin(); it != m_peer_iface_info.end(); it++)
	{
		if(it->peer == peer_iface)
		{
			IPACMDBG_H("Found the peer iface info.\n");
			if(m_is_ip_addr_assigned[IPA_IP_v4])
			{
				add_client_flt_rule(&(*it), client, IPA_IP_v4);
			}
			if(m_is_ip_addr_assigned[IPA_IP_v6])
			{
				add_client_flt_rule(&(*it), client, IPA_IP_v6);
			}

			break;
		}
	}
	return;
}

void IPACM_LanToLan_Iface::add_client_flt_rule(peer_iface_info *peer, client_info *client, ipa_ip_type iptype)
{
	list<flt_rule_info>::iterator it_flt;
	uint32_t flt_rule_hdl;
	uint32_t l2tp_first_pass_flt_rule_hdl = 0, l2tp_second_pass_flt_rule_hdl = 0;
	flt_rule_info new_flt_info;
	ipa_ioc_get_rt_tbl rt_tbl;

	if(m_is_l2tp_iface && iptype == IPA_IP_v4)
	{
		IPACMDBG_H("No need to install IPv4 flt rule on l2tp interface.\n");
		return;
	}

	for(it_flt = peer->flt_rule.begin(); it_flt != peer->flt_rule.end(); it_flt++)
	{
		if(it_flt->p_client == client)	//the client is already in the flt info list
		{
			IPACMDBG_H("The client is found in flt info list.\n");
			break;
		}
	}

	if(it_flt != peer->flt_rule.end())
	{
		l2tp_first_pass_flt_rule_hdl = it_flt->l2tp_first_pass_flt_rule_hdl[iptype];
		l2tp_second_pass_flt_rule_hdl = it_flt->l2tp_second_pass_flt_rule_hdl;
	}

	if(m_is_l2tp_iface)
	{
		m_p_iface->add_l2tp_flt_rule(client->mac_addr, &l2tp_first_pass_flt_rule_hdl);
	}
	else
	{
		if(client->is_l2tp_client)
		{
			m_p_iface->add_l2tp_flt_rule(iptype, client->mac_addr, client->mapping_info->vlan_client_ipv6_addr,
				&l2tp_first_pass_flt_rule_hdl, &l2tp_second_pass_flt_rule_hdl);
		}
		else
		{
			rt_tbl.ip = iptype;
			memcpy(rt_tbl.name, peer->rt_tbl_name_for_flt[iptype], sizeof(rt_tbl.name));
			IPACMDBG_H("This flt rule points to rt tbl %s.\n", rt_tbl.name);

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

			m_p_iface->eth_bridge_add_flt_rule(client->mac_addr, rt_tbl.hdl,
				iptype, &flt_rule_hdl);
			IPACMDBG_H("Installed flt rule for IP type %d: handle %d\n", iptype, flt_rule_hdl);
		}
	}

	if(it_flt != peer->flt_rule.end())
	{
		it_flt->flt_rule_hdl[iptype] = flt_rule_hdl;
		it_flt->l2tp_first_pass_flt_rule_hdl[iptype] = l2tp_first_pass_flt_rule_hdl;
		it_flt->l2tp_second_pass_flt_rule_hdl = l2tp_second_pass_flt_rule_hdl;
	}
	else
	{
		IPACMDBG_H("The client is not found in flt info list, insert a new one.\n");
		memset(&new_flt_info, 0, sizeof(new_flt_info));
		new_flt_info.p_client = client;
		new_flt_info.flt_rule_hdl[iptype] = flt_rule_hdl;
		new_flt_info.l2tp_first_pass_flt_rule_hdl[iptype] = l2tp_first_pass_flt_rule_hdl;
		new_flt_info.l2tp_second_pass_flt_rule_hdl = l2tp_second_pass_flt_rule_hdl;

		peer->flt_rule.push_front(new_flt_info);
	}

	return;
}

void IPACM_LanToLan_Iface::del_one_client_flt_rule(IPACM_LanToLan_Iface *peer_iface, client_info *client)
{
	list<peer_iface_info>::iterator it;

	for(it = m_peer_iface_info.begin(); it != m_peer_iface_info.end(); it++)
	{
		if(it->peer == peer_iface)
		{
			IPACMDBG_H("Found the peer iface info.\n");
			del_client_flt_rule(&(*it), client);
			break;
		}
	}
	return;
}

void IPACM_LanToLan_Iface::del_client_flt_rule(peer_iface_info *peer, client_info *client)
{
	list<flt_rule_info>::iterator it_flt;

	for(it_flt = peer->flt_rule.begin(); it_flt != peer->flt_rule.end(); it_flt++)
	{
		if(it_flt->p_client == client)	//found the client in flt info list
		{
			IPACMDBG_H("Found the client in flt info list.\n");
			if(m_is_ip_addr_assigned[IPA_IP_v4])
			{
				if(m_is_l2tp_iface)
				{
					IPACMDBG_H("No IPv4 client flt rule on l2tp iface.\n");
				}
				else
				{
					if(client->is_l2tp_client)
					{
						m_p_iface->del_l2tp_flt_rule(IPA_IP_v4, it_flt->l2tp_first_pass_flt_rule_hdl[IPA_IP_v4],
							it_flt->l2tp_second_pass_flt_rule_hdl);
						it_flt->l2tp_second_pass_flt_rule_hdl = 0;
						IPACMDBG_H("Deleted IPv4 first pass flt rule %d and second pass flt rule %d.\n",
							it_flt->l2tp_first_pass_flt_rule_hdl[IPA_IP_v4], it_flt->l2tp_second_pass_flt_rule_hdl);
					}
					else
					{
						m_p_iface->eth_bridge_del_flt_rule(it_flt->flt_rule_hdl[IPA_IP_v4], IPA_IP_v4);
						IPACMDBG_H("Deleted IPv4 flt rule %d.\n", it_flt->flt_rule_hdl[IPA_IP_v4]);
					}
				}
			}
			if(m_is_ip_addr_assigned[IPA_IP_v6])
			{
				if(m_is_l2tp_iface)
				{
					m_p_iface->del_l2tp_flt_rule(it_flt->l2tp_first_pass_flt_rule_hdl[IPA_IP_v6]);
					IPACMDBG_H("Deleted IPv6 flt rule %d.\n", it_flt->l2tp_first_pass_flt_rule_hdl[IPA_IP_v6]);
				}
				else
				{
					if(client->is_l2tp_client)
					{
						m_p_iface->del_l2tp_flt_rule(IPA_IP_v6, it_flt->l2tp_first_pass_flt_rule_hdl[IPA_IP_v6],
							it_flt->l2tp_second_pass_flt_rule_hdl);
						IPACMDBG_H("Deleted IPv6 first pass flt rule %d and second pass flt rule %d.\n",
							it_flt->l2tp_first_pass_flt_rule_hdl[IPA_IP_v6], it_flt->l2tp_second_pass_flt_rule_hdl);
					}
					else
					{
						m_p_iface->eth_bridge_del_flt_rule(it_flt->flt_rule_hdl[IPA_IP_v6], IPA_IP_v6);
						IPACMDBG_H("Deleted IPv6 flt rule %d.\n", it_flt->flt_rule_hdl[IPA_IP_v6]);
					}
				}
			}
			peer->flt_rule.erase(it_flt);
			break;
		}
	}
	return;
}

void IPACM_LanToLan_Iface::del_client_rt_rule(peer_iface_info *peer, client_info *client)
{
	ipa_hdr_l2_type peer_l2_hdr_type;
	int i, num_rules;

	peer_l2_hdr_type = peer->peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type;
	/* if the peer info is not for intra interface communication */
	if(peer->peer != this)
	{
		IPACMDBG_H("Delete routing rules for inter interface communication.\n");

		if(client->is_l2tp_client == false)
		{
			num_rules = client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].num_hdl[IPA_IP_v4];
			for(i = 0; i < num_rules; i++)
			{
				m_p_iface->eth_bridge_del_rt_rule(client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].rule_hdl[IPA_IP_v4][i], IPA_IP_v4);
				IPACMDBG_H("IPv4 rt rule %d is deleted.\n", client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].rule_hdl[IPA_IP_v4][i]);
			}
			client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].num_hdl[IPA_IP_v4] = 0;

			num_rules = client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].num_hdl[IPA_IP_v6];
			for(i = 0; i < num_rules; i++)
			{
				m_p_iface->eth_bridge_del_rt_rule(client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].rule_hdl[IPA_IP_v6][i], IPA_IP_v6);
				IPACMDBG_H("IPv6 rt rule %d is deleted.\n", client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].rule_hdl[IPA_IP_v6][i]);
			}
			client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].num_hdl[IPA_IP_v6] = 0;

			if(IPACM_LanToLan::get_instance()->has_l2tp_iface() == true)
			{
				m_p_iface->del_l2tp_rt_rule(IPA_IP_v6, client->l2tp_rt_rule_hdl[peer_l2_hdr_type].num_rt_hdl[IPA_IP_v6],
					client->l2tp_rt_rule_hdl[peer_l2_hdr_type].first_pass_rt_rule_hdl[IPA_IP_v6]);
			}
		}
		else
		{
			m_p_iface->del_l2tp_rt_rule(IPA_IP_v4, client->l2tp_rt_rule_hdl[peer_l2_hdr_type].first_pass_hdr_hdl,
				client->l2tp_rt_rule_hdl[peer_l2_hdr_type].first_pass_hdr_proc_ctx_hdl[IPA_IP_v4], client->l2tp_rt_rule_hdl[peer_l2_hdr_type].second_pass_hdr_hdl,
				client->l2tp_rt_rule_hdl[peer_l2_hdr_type].num_rt_hdl[IPA_IP_v4], client->l2tp_rt_rule_hdl[peer_l2_hdr_type].first_pass_rt_rule_hdl[IPA_IP_v4],
				client->l2tp_rt_rule_hdl[peer_l2_hdr_type].second_pass_rt_rule_hdl);

			m_p_iface->del_l2tp_rt_rule(IPA_IP_v6, 0, client->l2tp_rt_rule_hdl[peer_l2_hdr_type].first_pass_hdr_proc_ctx_hdl[IPA_IP_v6],
				0, client->l2tp_rt_rule_hdl[peer_l2_hdr_type].num_rt_hdl[IPA_IP_v6], client->l2tp_rt_rule_hdl[peer_l2_hdr_type].first_pass_rt_rule_hdl[IPA_IP_v6],
				NULL);
		}
	}
	else
	{
		IPACMDBG_H("Delete routing rules for intra interface communication.\n");
		num_rules = client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v4];
		for(i = 0; i < num_rules; i++)
		{
			m_p_iface->eth_bridge_del_rt_rule(client->intra_iface_rt_rule_hdl.rule_hdl[IPA_IP_v4][i], IPA_IP_v4);
			IPACMDBG_H("IPv4 rt rule %d is deleted.\n", client->intra_iface_rt_rule_hdl.rule_hdl[IPA_IP_v4][i]);
		}
		client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v4] = 0;

		num_rules = client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v6];
		for(i = 0; i < num_rules; i++)
		{
			m_p_iface->eth_bridge_del_rt_rule(client->intra_iface_rt_rule_hdl.rule_hdl[IPA_IP_v6][i], IPA_IP_v6);
			IPACMDBG_H("IPv6 rt rule %d is deleted.\n", client->intra_iface_rt_rule_hdl.rule_hdl[IPA_IP_v6][i]);
		}
		client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v6] = 0;
	}

	return;
}

void IPACM_LanToLan_Iface::handle_down_event()
{
	list<IPACM_LanToLan_Iface>::iterator it_other_iface;
	list<peer_iface_info>::iterator it_own_peer_info, it_other_iface_peer_info;
	IPACM_LanToLan_Iface *other_iface;

	/* clear inter-interface rules */
	if(m_support_inter_iface_offload)
	{
		for(it_own_peer_info = m_peer_iface_info.begin(); it_own_peer_info != m_peer_iface_info.end();
			it_own_peer_info++)
		{
			/* decrement reference count of peer l2 header type on both interfaces*/
			decrement_ref_cnt_peer_l2_hdr_type(it_own_peer_info->peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type);
			it_own_peer_info->peer->decrement_ref_cnt_peer_l2_hdr_type(m_p_iface->tx_prop->tx[0].hdr_l2_type);

			/* first clear all flt rule on target interface */
			IPACMDBG_H("Clear all flt rule on target interface.\n");
			clear_all_flt_rule_for_one_peer_iface(&(*it_own_peer_info));

			other_iface = it_own_peer_info->peer;
			/* then clear all flt/rt rule and hdr proc ctx for target interface on peer interfaces */
			IPACMDBG_H("Clear all flt/rt rules and hdr proc ctx for target interface on peer interfaces %s.\n",
				it_own_peer_info->peer->get_iface_pointer()->dev_name);
			for(it_other_iface_peer_info = other_iface->m_peer_iface_info.begin();
				it_other_iface_peer_info != other_iface->m_peer_iface_info.end();
				it_other_iface_peer_info++)
			{
				if(it_other_iface_peer_info->peer == this)	//found myself in other iface's peer info list
				{
					IPACMDBG_H("Found the right peer info on other iface.\n");
					other_iface->clear_all_flt_rule_for_one_peer_iface(&(*it_other_iface_peer_info));
					other_iface->clear_all_rt_rule_for_one_peer_iface(&(*it_other_iface_peer_info));
					/* remove the peer info from the list */
					other_iface->m_peer_iface_info.erase(it_other_iface_peer_info);
					other_iface->del_hdr_proc_ctx(m_p_iface->tx_prop->tx[0].hdr_l2_type);
					break;
				}
			}

			/* then clear rt rule and hdr proc ctx and release rt table on target interface */
			IPACMDBG_H("Clear rt rules and hdr proc ctx and release rt table on target interface.\n");
			clear_all_rt_rule_for_one_peer_iface(&(*it_own_peer_info));
			del_hdr_proc_ctx(it_own_peer_info->peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type);
		}
		m_peer_iface_info.clear();
	}

	/* clear intra interface rules */
	if(m_support_intra_iface_offload)
	{
		IPACMDBG_H("Clear intra interface flt/rt rules and hdr proc ctx, release rt tables.\n");
		clear_all_flt_rule_for_one_peer_iface(&m_intra_interface_info);
		clear_all_rt_rule_for_one_peer_iface(&m_intra_interface_info);
		m_p_iface->eth_bridge_del_hdr_proc_ctx(hdr_proc_ctx_for_intra_interface);
		IPACMDBG_H("Hdr proc ctx with hdl %d is deleted.\n", hdr_proc_ctx_for_intra_interface);
	}

	/* then clear the client info list */
	m_client_info.clear();

	return;
}

void IPACM_LanToLan_Iface::clear_all_flt_rule_for_one_peer_iface(peer_iface_info *peer)
{
	list<flt_rule_info>::iterator it;

	for(it = peer->flt_rule.begin(); it != peer->flt_rule.end(); it++)
	{
		if(m_is_ip_addr_assigned[IPA_IP_v4])
		{
			if(m_is_l2tp_iface)
			{
				IPACMDBG_H("No IPv4 client flt rule on l2tp iface.\n");
			}
			else
			{
				if(it->p_client->is_l2tp_client)
				{
					m_p_iface->del_l2tp_flt_rule(IPA_IP_v4, it->l2tp_first_pass_flt_rule_hdl[IPA_IP_v4],
						it->l2tp_second_pass_flt_rule_hdl);
					it->l2tp_second_pass_flt_rule_hdl = 0;
					IPACMDBG_H("Deleted IPv4 first pass flt rule %d and second pass flt rule %d.\n",
						it->l2tp_first_pass_flt_rule_hdl[IPA_IP_v4], it->l2tp_second_pass_flt_rule_hdl);
				}
				else
				{
					m_p_iface->eth_bridge_del_flt_rule(it->flt_rule_hdl[IPA_IP_v4], IPA_IP_v4);
					IPACMDBG_H("Deleted IPv4 flt rule %d.\n", it->flt_rule_hdl[IPA_IP_v4]);
				}
			}
		}
		if(m_is_ip_addr_assigned[IPA_IP_v6])
		{
			if(m_is_l2tp_iface)
			{
				m_p_iface->del_l2tp_flt_rule(it->l2tp_first_pass_flt_rule_hdl[IPA_IP_v6]);
				IPACMDBG_H("Deleted IPv6 flt rule %d.\n", it->l2tp_first_pass_flt_rule_hdl[IPA_IP_v6]);
			}
			else
			{
				if(it->p_client->is_l2tp_client)
				{
					m_p_iface->del_l2tp_flt_rule(IPA_IP_v6, it->l2tp_first_pass_flt_rule_hdl[IPA_IP_v6],
						it->l2tp_second_pass_flt_rule_hdl);
					IPACMDBG_H("Deleted IPv6 first pass flt rule %d and second pass flt rule %d.\n",
						it->l2tp_first_pass_flt_rule_hdl[IPA_IP_v6], it->l2tp_second_pass_flt_rule_hdl);
				}
				else
				{
					m_p_iface->eth_bridge_del_flt_rule(it->flt_rule_hdl[IPA_IP_v6], IPA_IP_v6);
					IPACMDBG_H("Deleted IPv6 flt rule %d.\n", it->flt_rule_hdl[IPA_IP_v6]);
				}
			}
		}
	}
	peer->flt_rule.clear();
	return;
}

void IPACM_LanToLan_Iface::clear_all_rt_rule_for_one_peer_iface(peer_iface_info *peer)
{
	list<client_info>::iterator it;
	ipa_hdr_l2_type peer_l2_type;

	peer_l2_type = peer->peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type;
	if(ref_cnt_peer_l2_hdr_type[peer_l2_type] == 0)
	{
		for(it = m_client_info.begin(); it != m_client_info.end(); it++)
		{
			del_client_rt_rule(peer, &(*it));
		}
		if(IPACM_LanToLan::get_instance()->has_l2tp_iface() == true)
		{
			m_p_iface->eth_bridge_del_hdr_proc_ctx(hdr_proc_ctx_for_l2tp);
			hdr_proc_ctx_for_l2tp = 0;
		}
	}

	return;
}

void IPACM_LanToLan_Iface::handle_wlan_scc_mcc_switch()
{
	list<peer_iface_info>::iterator it_peer_info;
	list<client_info>::iterator it_client;
	ipa_hdr_l2_type peer_l2_hdr_type;
	bool flag[IPA_HDR_L2_MAX];
	int i;

	/* modify inter-interface routing rules */
	if(m_support_inter_iface_offload)
	{
		IPACMDBG_H("Modify rt rules for peer interfaces.\n");
		memset(flag, 0, sizeof(flag));
		for(it_peer_info = m_peer_iface_info.begin(); it_peer_info != m_peer_iface_info.end(); it_peer_info++)
		{
			peer_l2_hdr_type = it_peer_info->peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type;
			if(flag[peer_l2_hdr_type] == false)
			{
				flag[peer_l2_hdr_type] = true;
				for(it_client = m_client_info.begin(); it_client != m_client_info.end(); it_client++)
				{
					m_p_iface->eth_bridge_modify_rt_rule(it_client->mac_addr, hdr_proc_ctx_for_inter_interface[peer_l2_hdr_type],
						peer_l2_hdr_type, IPA_IP_v4, it_client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].rule_hdl[IPA_IP_v4],
						it_client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].num_hdl[IPA_IP_v4]);
					IPACMDBG_H("The following IPv4 routing rules are modified:\n");
					for(i = 0; i < it_client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].num_hdl[IPA_IP_v4]; i++)
					{
						IPACMDBG_H("%d\n", it_client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].rule_hdl[IPA_IP_v4][i]);
					}

					m_p_iface->eth_bridge_modify_rt_rule(it_client->mac_addr, hdr_proc_ctx_for_inter_interface[peer_l2_hdr_type],
						peer_l2_hdr_type, IPA_IP_v6, it_client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].rule_hdl[IPA_IP_v6],
						it_client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].num_hdl[IPA_IP_v6]);
					IPACMDBG_H("The following IPv6 routing rules are modified:\n");
					for(i = 0; i < it_client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].num_hdl[IPA_IP_v6]; i++)
					{
						IPACMDBG_H("%d\n", it_client->inter_iface_rt_rule_hdl[peer_l2_hdr_type].rule_hdl[IPA_IP_v6][i]);
					}
				}
			}
		}
	}

	/* modify routing rules for intra-interface communication */
	IPACMDBG_H("Modify rt rules for intra-interface communication.\n");
	if(m_support_intra_iface_offload)
	{
		for(it_client = m_client_info.begin(); it_client != m_client_info.end(); it_client++)
		{
			m_p_iface->eth_bridge_modify_rt_rule(it_client->mac_addr, hdr_proc_ctx_for_intra_interface,
				m_p_iface->tx_prop->tx[0].hdr_l2_type, IPA_IP_v4, it_client->intra_iface_rt_rule_hdl.rule_hdl[IPA_IP_v4],
				it_client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v4]);
			IPACMDBG_H("The following IPv4 routing rules are modified:\n");
			for(i = 0; i < it_client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v4]; i++)
			{
				IPACMDBG_H("%d\n", it_client->intra_iface_rt_rule_hdl.rule_hdl[IPA_IP_v4][i]);
			}

			m_p_iface->eth_bridge_modify_rt_rule(it_client->mac_addr, hdr_proc_ctx_for_intra_interface,
				m_p_iface->tx_prop->tx[0].hdr_l2_type, IPA_IP_v6, it_client->intra_iface_rt_rule_hdl.rule_hdl[IPA_IP_v6],
				it_client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v6]);
			IPACMDBG_H("The following IPv6 routing rules are modified:\n");
			for(i = 0; i < it_client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v6]; i++)
			{
				IPACMDBG_H("%d\n", it_client->intra_iface_rt_rule_hdl.rule_hdl[IPA_IP_v6][i]);
			}
		}
	}

	return;
}

void IPACM_LanToLan_Iface::handle_intra_interface_info()
{
	uint32_t hdr_proc_ctx_hdl;

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

	m_intra_interface_info.peer = this;

	snprintf(m_intra_interface_info.rt_tbl_name_for_flt[IPA_IP_v4], IPA_RESOURCE_NAME_MAX,
		"eth_v4_intra_interface");
	IPACMDBG_H("IPv4 routing table for flt name: %s\n", m_intra_interface_info.rt_tbl_name_for_flt[IPA_IP_v4]);
	snprintf(m_intra_interface_info.rt_tbl_name_for_flt[IPA_IP_v6], IPA_RESOURCE_NAME_MAX,
		"eth_v6_intra_interface");
	IPACMDBG_H("IPv6 routing table for flt name: %s\n", m_intra_interface_info.rt_tbl_name_for_flt[IPA_IP_v6]);

	memcpy(m_intra_interface_info.rt_tbl_name_for_rt[IPA_IP_v4], m_intra_interface_info.rt_tbl_name_for_flt[IPA_IP_v4],
		IPA_RESOURCE_NAME_MAX);
	IPACMDBG_H("IPv4 routing table for rt name: %s\n", m_intra_interface_info.rt_tbl_name_for_rt[IPA_IP_v4]);
	memcpy(m_intra_interface_info.rt_tbl_name_for_rt[IPA_IP_v6], m_intra_interface_info.rt_tbl_name_for_flt[IPA_IP_v6],
		IPA_RESOURCE_NAME_MAX);
	IPACMDBG_H("IPv6 routing table for rt name: %s\n", m_intra_interface_info.rt_tbl_name_for_rt[IPA_IP_v6]);

	m_p_iface->eth_bridge_add_hdr_proc_ctx(m_p_iface->tx_prop->tx[0].hdr_l2_type,
		&hdr_proc_ctx_hdl);
	hdr_proc_ctx_for_intra_interface = hdr_proc_ctx_hdl;
	IPACMDBG_H("Hdr proc ctx for intra-interface communication: hdl %d\n", hdr_proc_ctx_hdl);

	return;
}

void IPACM_LanToLan_Iface::handle_new_iface_up(char rt_tbl_name_for_flt[][IPA_RESOURCE_NAME_MAX], char rt_tbl_name_for_rt[][IPA_RESOURCE_NAME_MAX],
		IPACM_LanToLan_Iface *peer_iface)
{
	peer_iface_info new_peer;
	ipa_hdr_l2_type peer_l2_hdr_type;

	new_peer.peer = peer_iface;
	memcpy(new_peer.rt_tbl_name_for_rt[IPA_IP_v4], rt_tbl_name_for_rt[IPA_IP_v4], IPA_RESOURCE_NAME_MAX);
	memcpy(new_peer.rt_tbl_name_for_rt[IPA_IP_v6], rt_tbl_name_for_rt[IPA_IP_v6], IPA_RESOURCE_NAME_MAX);
	memcpy(new_peer.rt_tbl_name_for_flt[IPA_IP_v4], rt_tbl_name_for_flt[IPA_IP_v4], IPA_RESOURCE_NAME_MAX);
	memcpy(new_peer.rt_tbl_name_for_flt[IPA_IP_v6], rt_tbl_name_for_flt[IPA_IP_v6], IPA_RESOURCE_NAME_MAX);

	peer_l2_hdr_type = peer_iface->m_p_iface->tx_prop->tx[0].hdr_l2_type;
	increment_ref_cnt_peer_l2_hdr_type(peer_l2_hdr_type);
	add_hdr_proc_ctx(peer_l2_hdr_type);

	/* push the new peer_iface_info into the list */
	m_peer_iface_info.push_front(new_peer);

	return;
}

void IPACM_LanToLan_Iface::handle_client_add(uint8_t *mac, bool is_l2tp_client, l2tp_vlan_mapping_info *mapping_info)
{
	list<client_info>::iterator it_client;
	list<peer_iface_info>::iterator it_peer_info;
	client_info new_client;
	bool flag[IPA_HDR_L2_MAX];

	for(it_client = m_client_info.begin(); it_client != m_client_info.end(); it_client++)
	{
		if(memcmp(it_client->mac_addr, mac, sizeof(it_client->mac_addr)) == 0)
		{
			IPACMDBG_H("This client has been added before.\n");
			return;
		}
	}

	if(m_client_info.size() == MAX_NUM_CLIENT)
	{
		IPACMDBG_H("The number of clients has reached maximum %d.\n", MAX_NUM_CLIENT);
		return;
	}

	IPACMDBG_H("is_l2tp_client: %d, mapping_info: %p\n", is_l2tp_client, mapping_info);
	memset(&new_client, 0, sizeof(new_client));
	memcpy(new_client.mac_addr, mac, sizeof(new_client.mac_addr));
	new_client.is_l2tp_client = is_l2tp_client;
	new_client.mapping_info = mapping_info;
	m_client_info.push_front(new_client);

	client_info &front_client = m_client_info.front();

	/* install inter-interface rules */
	if(m_support_inter_iface_offload)
	{
		memset(flag, 0, sizeof(flag));
		for(it_peer_info = m_peer_iface_info.begin(); it_peer_info != m_peer_iface_info.end(); it_peer_info++)
		{
			/* make sure add routing rule only once for each peer l2 header type */
			if(flag[it_peer_info->peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type] == false)
			{
				/* add client routing rule for each peer interface */
				if(front_client.is_l2tp_client == false)
				{
					add_client_rt_rule(&(*it_peer_info), &front_client);
				}
#ifdef FEATURE_L2TP
				/* add l2tp rt rules */
				add_l2tp_client_rt_rule(&(*it_peer_info), &front_client);
#endif
				flag[it_peer_info->peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type] = true;
			}

			/* add client filtering rule on peer interfaces */
			it_peer_info->peer->add_one_client_flt_rule(this, &front_client);
		}
	}

	/* install intra-interface rules */
	if(m_support_intra_iface_offload)
	{
		/* add routing rule first */
		add_client_rt_rule(&m_intra_interface_info, &front_client);

		/* add filtering rule */
		if(m_is_ip_addr_assigned[IPA_IP_v4])
		{
			add_client_flt_rule(&m_intra_interface_info, &front_client, IPA_IP_v4);
		}
		if(m_is_ip_addr_assigned[IPA_IP_v6])
		{
			add_client_flt_rule(&m_intra_interface_info, &front_client, IPA_IP_v6);
		}
	}

	return;
}

void IPACM_LanToLan_Iface::handle_client_del(uint8_t *mac)
{
	list<client_info>::iterator it_client;
	list<peer_iface_info>::iterator it_peer_info;
	bool flag[IPA_HDR_L2_MAX];

	for(it_client = m_client_info.begin(); it_client != m_client_info.end(); it_client++)
	{
		if(memcmp(it_client->mac_addr, mac, sizeof(it_client->mac_addr)) == 0)	//found the client
		{
			IPACMDBG_H("Found the client.\n");
			break;
		}
	}

	if(it_client != m_client_info.end())	//if we found the client
	{
		/* uninstall inter-interface rules */
		if(m_support_inter_iface_offload)
		{
			memset(flag, 0, sizeof(flag));
			for(it_peer_info = m_peer_iface_info.begin(); it_peer_info != m_peer_iface_info.end();
				it_peer_info++)
			{
				IPACMDBG_H("Delete client filtering rule on peer interface.\n");
				it_peer_info->peer->del_one_client_flt_rule(this, &(*it_client));

				/* make sure to delete routing rule only once for each peer l2 header type */
				if(flag[it_peer_info->peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type] == false)
				{
					IPACMDBG_H("Delete client routing rule for peer interface.\n");
					del_client_rt_rule(&(*it_peer_info), &(*it_client));
					if(it_client->is_l2tp_client == false && IPACM_LanToLan::get_instance()->has_l2tp_iface() == true
						&& m_client_info.size() == 1)
					{
						m_p_iface->eth_bridge_del_hdr_proc_ctx(hdr_proc_ctx_for_l2tp);
						hdr_proc_ctx_for_l2tp = 0;
					}
					flag[it_peer_info->peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type] = true;
				}
			}
		}

		/* uninstall intra-interface rules */
		if(m_support_intra_iface_offload)
		{
			/* delete filtering rule first */
			IPACMDBG_H("Delete client filtering rule for intra-interface communication.\n");
			del_client_flt_rule(&m_intra_interface_info, &(*it_client));

			/* delete routing rule */
			IPACMDBG_H("Delete client routing rule for intra-interface communication.\n");
			del_client_rt_rule(&m_intra_interface_info, &(*it_client));
		}

		/* erase the client from client info list */
		m_client_info.erase(it_client);
	}
	else
	{
		IPACMDBG_H("The client is not found.\n");
	}

	return;
}

void IPACM_LanToLan_Iface::add_hdr_proc_ctx(ipa_hdr_l2_type peer_l2_type)
{
	uint32_t hdr_proc_ctx_hdl;

	if(ref_cnt_peer_l2_hdr_type[peer_l2_type] == 1)
	{
		m_p_iface->eth_bridge_add_hdr_proc_ctx(peer_l2_type, &hdr_proc_ctx_hdl);
		hdr_proc_ctx_for_inter_interface[peer_l2_type] = hdr_proc_ctx_hdl;
		IPACMDBG_H("Installed inter-interface hdr proc ctx on iface %s: handle %d\n", m_p_iface->dev_name, hdr_proc_ctx_hdl);
	}
	return;
}

void IPACM_LanToLan_Iface::del_hdr_proc_ctx(ipa_hdr_l2_type peer_l2_type)
{
	if(ref_cnt_peer_l2_hdr_type[peer_l2_type] == 0)
	{
		m_p_iface->eth_bridge_del_hdr_proc_ctx(hdr_proc_ctx_for_inter_interface[peer_l2_type]);
		IPACMDBG_H("Hdr proc ctx with hdl %d is deleted.\n", hdr_proc_ctx_for_inter_interface[peer_l2_type]);
	}
	return;
}

void IPACM_LanToLan_Iface::print_data_structure_info()
{
	list<peer_iface_info>::iterator it_peer;
	list<client_info>::iterator it_client;
	int i, j, k;

	IPACMDBG_H("\n");
	IPACMDBG_H("Interface %s:\n", m_p_iface->dev_name);
	IPACMDBG_H("Is IPv4 addr assigned? %d\n", m_is_ip_addr_assigned[IPA_IP_v4]);
	IPACMDBG_H("Is IPv6 addr assigned? %d\n", m_is_ip_addr_assigned[IPA_IP_v6]);
	IPACMDBG_H("Support inter interface offload? %d\n", m_support_inter_iface_offload);
	IPACMDBG_H("Support intra interface offload? %d\n", m_support_intra_iface_offload);
	IPACMDBG_H("Is l2tp interface? %d\n", m_is_l2tp_iface);

	if(m_support_inter_iface_offload)
	{
		for(i = 0; i < IPA_HDR_L2_MAX; i++)
		{
			IPACMDBG_H("Ref_cnt of peer l2 type %s is %d.\n", ipa_l2_hdr_type[i], ref_cnt_peer_l2_hdr_type[i]);
			if(ref_cnt_peer_l2_hdr_type[i] > 0)
			{
				IPACMDBG_H("Hdr proc ctx for peer l2 type %s: %d\n", ipa_l2_hdr_type[i], hdr_proc_ctx_for_inter_interface[i]);
			}
		}
	}

	if(m_support_intra_iface_offload)
	{
		IPACMDBG_H("Hdr proc ctx for intra-interface: %d\n", hdr_proc_ctx_for_intra_interface);
	}

	IPACMDBG_H("Hdr proc ctx for l2tp: %d\n", hdr_proc_ctx_for_l2tp);

	i = 1;
	IPACMDBG_H("There are %d clients in total.\n", m_client_info.size());
	for(it_client = m_client_info.begin(); it_client != m_client_info.end(); it_client++)
	{
		IPACMDBG_H("Client %d MAC: 0x%02x%02x%02x%02x%02x%02x Pointer: 0x%08x\n", i, it_client->mac_addr[0], it_client->mac_addr[1],
			it_client->mac_addr[2], it_client->mac_addr[3], it_client->mac_addr[4], it_client->mac_addr[5], &(*it_client));
		IPACMDBG_H("Is l2tp client? %d\n", it_client->is_l2tp_client);
		if(it_client->is_l2tp_client && it_client->mapping_info)
		{
			IPACMDBG_H("Vlan iface associated with this client: %s\n", it_client->mapping_info->vlan_iface_name);
		}

		if(m_support_inter_iface_offload)
		{
			for(j = 0; j < IPA_HDR_L2_MAX; j++)
			{
				if(ref_cnt_peer_l2_hdr_type[j] > 0)
				{
					IPACMDBG_H("Printing routing rule info for inter-interface communication for peer l2 type %s.\n",
						ipa_l2_hdr_type[j]);
					IPACMDBG_H("Number of IPv4 routing rules is %d, handles:\n", it_client->inter_iface_rt_rule_hdl[j].num_hdl[IPA_IP_v4]);
					for(k = 0; k < it_client->inter_iface_rt_rule_hdl[j].num_hdl[IPA_IP_v4]; k++)
					{
						IPACMDBG_H("%d\n", it_client->inter_iface_rt_rule_hdl[j].rule_hdl[IPA_IP_v4][k]);
					}

					IPACMDBG_H("Number of IPv6 routing rules is %d, handles:\n", it_client->inter_iface_rt_rule_hdl[j].num_hdl[IPA_IP_v6]);
					for(k = 0; k < it_client->inter_iface_rt_rule_hdl[j].num_hdl[IPA_IP_v6]; k++)
					{
						IPACMDBG_H("%d\n", it_client->inter_iface_rt_rule_hdl[j].rule_hdl[IPA_IP_v6][k]);
					}

					if(it_client->is_l2tp_client)
					{
						IPACMDBG_H("Printing l2tp hdr info for l2tp client.\n");
						IPACMDBG_H("First pass hdr hdl: %d, IPv4 hdr proc ctx hdl: IPv6 hdr proc ctx hdl: %d\n",
							it_client->l2tp_rt_rule_hdl[j].first_pass_hdr_hdl, it_client->l2tp_rt_rule_hdl[j].first_pass_hdr_proc_ctx_hdl[IPA_IP_v4],
							it_client->l2tp_rt_rule_hdl[j].first_pass_hdr_proc_ctx_hdl[IPA_IP_v6]);
						IPACMDBG_H("Second pass hdr hdl: %d\n", it_client->l2tp_rt_rule_hdl[j].second_pass_hdr_hdl);

						IPACMDBG_H("Printing l2tp routing rule info for l2tp client.\n");
						IPACMDBG_H("Number of IPv4 routing rules is %d, first pass handles:\n", it_client->l2tp_rt_rule_hdl[j].num_rt_hdl[IPA_IP_v4]);
						for(k = 0; k < it_client->l2tp_rt_rule_hdl[j].num_rt_hdl[IPA_IP_v4]; k++)
						{
							IPACMDBG_H("%d\n", it_client->l2tp_rt_rule_hdl[j].first_pass_rt_rule_hdl[IPA_IP_v4][k]);
						}
						IPACMDBG_H("Number of IPv6 routing rules is %d, first pass handles:\n", it_client->l2tp_rt_rule_hdl[j].num_rt_hdl[IPA_IP_v6]);
						for(k = 0; k < it_client->l2tp_rt_rule_hdl[j].num_rt_hdl[IPA_IP_v6]; k++)
						{
							IPACMDBG_H("%d\n", it_client->l2tp_rt_rule_hdl[j].first_pass_rt_rule_hdl[IPA_IP_v6][k]);
						}
						IPACMDBG_H("Second pass handles:\n");
						for(k = 0; k < it_client->l2tp_rt_rule_hdl[j].num_rt_hdl[IPA_IP_v6]; k++)
						{
							IPACMDBG_H("%d\n", it_client->l2tp_rt_rule_hdl[j].second_pass_rt_rule_hdl[k]);
						}
					}
					else
					{
						if(IPACM_LanToLan::get_instance()->has_l2tp_iface())
						{
							IPACMDBG_H("Printing l2tp hdr info for non l2tp client.\n");
							IPACMDBG_H("Hdr hdl: %d, IPv4 hdr proc ctx hdl: IPv6 hdr proc ctx hdl: %d\n",
								it_client->l2tp_rt_rule_hdl[j].first_pass_hdr_hdl, it_client->l2tp_rt_rule_hdl[j].first_pass_hdr_proc_ctx_hdl[IPA_IP_v4],
								it_client->l2tp_rt_rule_hdl[j].first_pass_hdr_proc_ctx_hdl[IPA_IP_v6]);

							IPACMDBG_H("Printing l2tp routing rule info for non l2tp client.\n");
							IPACMDBG_H("Number of IPv4 routing rules is %d, handles:\n", it_client->l2tp_rt_rule_hdl[j].num_rt_hdl[IPA_IP_v4]);
							for(k = 0; k < it_client->l2tp_rt_rule_hdl[j].num_rt_hdl[IPA_IP_v4]; k++)
							{
								IPACMDBG_H("%d\n", it_client->l2tp_rt_rule_hdl[j].first_pass_rt_rule_hdl[IPA_IP_v4][k]);
							}
							IPACMDBG_H("Number of IPv6 routing rules is %d, handles:\n", it_client->l2tp_rt_rule_hdl[j].num_rt_hdl[IPA_IP_v6]);
							for(k = 0; k < it_client->l2tp_rt_rule_hdl[j].num_rt_hdl[IPA_IP_v6]; k++)
							{
								IPACMDBG_H("%d\n", it_client->l2tp_rt_rule_hdl[j].first_pass_rt_rule_hdl[IPA_IP_v6][k]);
							}
						}
					}
				}
			}
		}

		if(m_support_intra_iface_offload)
		{
			IPACMDBG_H("Printing routing rule info for intra-interface communication.\n");
			IPACMDBG_H("Number of IPv4 routing rules is %d, handles:\n", it_client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v4]);
			for(j = 0; j < it_client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v4]; j++)
			{
				IPACMDBG_H("%d\n", it_client->intra_iface_rt_rule_hdl.rule_hdl[IPA_IP_v4][j]);
			}

			IPACMDBG_H("Number of IPv6 routing rules is %d, handles:\n", it_client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v6]);
			for(j = 0; j < it_client->intra_iface_rt_rule_hdl.num_hdl[IPA_IP_v6]; j++)
			{
				IPACMDBG_H("%d\n", it_client->intra_iface_rt_rule_hdl.rule_hdl[IPA_IP_v6][j]);
			}
		}
		i++;
	}

	IPACMDBG_H("There are %d peer interfaces in total.\n", m_peer_iface_info.size());
	for(it_peer = m_peer_iface_info.begin(); it_peer != m_peer_iface_info.end(); it_peer++)
	{
		print_peer_info(&(*it_peer));
	}

	if(m_support_intra_iface_offload)
	{
		IPACMDBG_H("This interface supports intra-interface communication, printing info:\n");
		print_peer_info(&m_intra_interface_info);
	}

	return;
}

void IPACM_LanToLan_Iface::print_peer_info(peer_iface_info *peer_info)
{
	list<flt_rule_info>::iterator it_flt;
	list<rt_rule_info>::iterator it_rt;

	IPACMDBG_H("Printing peer info for iface %s:\n", peer_info->peer->m_p_iface->dev_name);

	IPACMDBG_H("There are %d flt info in total.\n", peer_info->flt_rule.size());
	for(it_flt = peer_info->flt_rule.begin(); it_flt != peer_info->flt_rule.end(); it_flt++)
	{
		IPACMDBG_H("Flt rule handle for client 0x%08x:\n", it_flt->p_client);
		if(m_is_ip_addr_assigned[IPA_IP_v4])
		{
			IPACMDBG_H("IPv4 %d\n", it_flt->flt_rule_hdl[IPA_IP_v4]);
			IPACMDBG_H("IPv4 l2tp first pass flt rule: %d\n", it_flt->l2tp_first_pass_flt_rule_hdl[IPA_IP_v4]);
		}
		if(m_is_ip_addr_assigned[IPA_IP_v6])
		{
			IPACMDBG_H("IPv6 %d\n", it_flt->flt_rule_hdl[IPA_IP_v6]);
			IPACMDBG_H("IPv6 l2tp first pass flt rule: %d\n", it_flt->l2tp_first_pass_flt_rule_hdl[IPA_IP_v6]);
		}
		IPACMDBG_H("L2tp second pass flt rule: %d\n", it_flt->l2tp_second_pass_flt_rule_hdl);
	}

	return;
}

IPACM_Lan* IPACM_LanToLan_Iface::get_iface_pointer()
{
	return m_p_iface;
}

bool IPACM_LanToLan_Iface::get_m_is_ip_addr_assigned(ipa_ip_type iptype)
{
	IPACMDBG_H("Has IP address been assigned to interface %s for IP type %d? %d\n",
		m_p_iface->dev_name, iptype, m_is_ip_addr_assigned[iptype]);
	return m_is_ip_addr_assigned[iptype];
}

void IPACM_LanToLan_Iface::set_m_is_ip_addr_assigned(ipa_ip_type iptype, bool value)
{
	IPACMDBG_H("Is IP address of IP type %d assigned to interface %s? %d\n", iptype,
		m_p_iface->dev_name, value);
	m_is_ip_addr_assigned[iptype] = value;
}

bool IPACM_LanToLan_Iface::get_m_support_inter_iface_offload()
{
	IPACMDBG_H("Support inter interface offload on %s? %d\n", m_p_iface->dev_name,
		m_support_inter_iface_offload);
	return m_support_inter_iface_offload;
}

bool IPACM_LanToLan_Iface::get_m_support_intra_iface_offload()
{
	IPACMDBG_H("Support intra interface offload on %s? %d\n", m_p_iface->dev_name,
		m_support_intra_iface_offload);
	return m_support_intra_iface_offload;
}

void IPACM_LanToLan_Iface::increment_ref_cnt_peer_l2_hdr_type(ipa_hdr_l2_type peer_l2_type)
{
	ref_cnt_peer_l2_hdr_type[peer_l2_type]++;
	IPACMDBG_H("Now the ref_cnt of peer l2 hdr type %s is %d.\n", ipa_l2_hdr_type[peer_l2_type],
		ref_cnt_peer_l2_hdr_type[peer_l2_type]);

	return;
}

void IPACM_LanToLan_Iface::decrement_ref_cnt_peer_l2_hdr_type(ipa_hdr_l2_type peer_l2_type)
{
	ref_cnt_peer_l2_hdr_type[peer_l2_type]--;
	IPACMDBG_H("Now the ref_cnt of peer l2 hdr type %s is %d.\n", ipa_l2_hdr_type[peer_l2_type],
		ref_cnt_peer_l2_hdr_type[peer_l2_type]);

	return;
}

bool IPACM_LanToLan_Iface::set_l2tp_iface(char *vlan_iface_name)
{
	IPACMDBG_H("Self iface %s, vlan iface %s\n", m_p_iface->dev_name,
		vlan_iface_name);

	if(m_is_l2tp_iface == false)
	{
		if(strncmp(m_p_iface->dev_name, vlan_iface_name, strlen(m_p_iface->dev_name)) == 0)
		{
			IPACMDBG_H("This interface is l2tp interface.\n");
			m_is_l2tp_iface = true;
			switch_to_l2tp_iface();
		}
	}
	return m_is_l2tp_iface;
}

bool IPACM_LanToLan_Iface::is_l2tp_iface()
{
	return m_is_l2tp_iface;
}

void IPACM_LanToLan_Iface::switch_to_l2tp_iface()
{
	list<peer_iface_info>::iterator it_peer;
	list<flt_rule_info>::iterator it_flt;

	for(it_peer = m_peer_iface_info.begin(); it_peer != m_peer_iface_info.end(); it_peer++)
	{
		for(it_flt = it_peer->flt_rule.begin(); it_flt != it_peer->flt_rule.end(); it_flt++)
		{
			if(m_is_ip_addr_assigned[IPA_IP_v4])
			{
				m_p_iface->eth_bridge_del_flt_rule(it_flt->flt_rule_hdl[IPA_IP_v4], IPA_IP_v4);
				IPACMDBG_H("Deleted IPv4 flt rule %d.\n", it_flt->flt_rule_hdl[IPA_IP_v4]);
			}
			if(m_is_ip_addr_assigned[IPA_IP_v6])
			{
				m_p_iface->eth_bridge_del_flt_rule(it_flt->flt_rule_hdl[IPA_IP_v6], IPA_IP_v6);
				m_p_iface->add_l2tp_flt_rule(it_flt->p_client->mac_addr, &it_flt->l2tp_first_pass_flt_rule_hdl[IPA_IP_v6]);
				IPACMDBG_H("Deleted IPv6 flt rule %d.\n", it_flt->flt_rule_hdl[IPA_IP_v6]);
			}
		}
	}
	return;
}

void IPACM_LanToLan_Iface::handle_l2tp_enable()
{
	int i;
	ipa_hdr_l2_type peer_l2_hdr_type;
	list<peer_iface_info>::iterator it_peer_info;
	list<client_info>::iterator it_client;
	bool flag[IPA_HDR_L2_MAX];

	if(m_support_inter_iface_offload)
	{
		memset(flag, 0, sizeof(flag));
		for(it_peer_info = m_peer_iface_info.begin(); it_peer_info != m_peer_iface_info.end(); it_peer_info++)
		{
			if(it_peer_info->peer->is_l2tp_iface())
			{
				peer_l2_hdr_type = it_peer_info->peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type;
				flag[peer_l2_hdr_type] = true;
			}
		}

		for(i = 0; i < IPA_HDR_L2_MAX; i++)
		{
			if(flag[i] == true)
			{
				IPACMDBG_H("Add rt rule for peer l2 type %s\n", ipa_l2_hdr_type[i]);
				for(it_client = m_client_info.begin(); it_client != m_client_info.end(); it_client++)
				{
					m_p_iface->add_l2tp_rt_rule(IPA_IP_v6, it_client->mac_addr, &hdr_proc_ctx_for_l2tp,
						&it_client->l2tp_rt_rule_hdl[i].num_rt_hdl[IPA_IP_v6],
						it_client->l2tp_rt_rule_hdl[i].first_pass_rt_rule_hdl[IPA_IP_v6]);
				}
			}
		}
	}
	return;
}

void IPACM_LanToLan_Iface::handle_l2tp_disable()
{
	int i;
	ipa_hdr_l2_type peer_l2_hdr_type;
	list<peer_iface_info>::iterator it_peer_info;
	list<client_info>::iterator it_client;
	bool flag[IPA_HDR_L2_MAX];

	if(m_support_inter_iface_offload)
	{
		memset(flag, 0, sizeof(flag));
		for(it_peer_info = m_peer_iface_info.begin(); it_peer_info != m_peer_iface_info.end(); it_peer_info++)
		{
			peer_l2_hdr_type = it_peer_info->peer->get_iface_pointer()->tx_prop->tx[0].hdr_l2_type;
			flag[peer_l2_hdr_type] = true;
		}

		for(i = 0; i < IPA_HDR_L2_MAX; i++)
		{
			if(flag[i] == true)
			{
				IPACMDBG_H("Delete rt rule for peer l2 type %s\n", ipa_l2_hdr_type[i]);
				for(it_client = m_client_info.begin(); it_client != m_client_info.end(); it_client++)
				{
					m_p_iface->del_l2tp_rt_rule(IPA_IP_v6, it_client->l2tp_rt_rule_hdl[i].num_rt_hdl[IPA_IP_v6],
						it_client->l2tp_rt_rule_hdl[i].first_pass_rt_rule_hdl[IPA_IP_v6]);
				}
			}
		}
	}
	return;
}