msm8998/ipacm/inc/IPACM_LanToLan.h

/*
Copyright (c) 2014, The Linux Foundation. All rights reserved.

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modification, are permitted provided that the following conditions are
met:
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			notice, this list of conditions and the following disclaimer.
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			copyright notice, this list of conditions and the following
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			with the distribution.
		* Neither the name of The Linux Foundation nor the names of its
			contributors may be used to endorse or promote products derived
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THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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*/

/*
 * IPACM_LanToLan.h
 *
 *  Created on: Mar 4th, 2014
 *      Author: Shihuan Liu
 */

#ifndef IPACM_LANTOLAN_H
#define IPACM_LANTOLAN_H

#include <stdint.h>
#include "linux/msm_ipa.h"
#include "IPACM_Iface.h"
#include "IPACM_Defs.h"
#include "IPACM_Lan.h"

#ifdef FEATURE_IPA_ANDROID
#include <libxml/list.h>
#else/* defined(FEATURE_IPA_ANDROID) */
#include <list>
#endif /* ndefined(FEATURE_IPA_ANDROID)*/

#define MAX_NUM_CACHED_CLIENT_ADD_EVENT 10
#define MAX_NUM_IFACE 10
#define MAX_NUM_CLIENT 16

struct rt_rule_info
{
	int num_hdl[IPA_IP_MAX];	/* one client may need more than one routing rules on the same routing table depending on tx_prop */
	uint32_t  rule_hdl[IPA_IP_MAX][MAX_NUM_PROP];
};

struct client_info
{
	uint8_t mac_addr[6];
	rt_rule_info inter_iface_rt_rule_hdl[IPA_HDR_L2_MAX];	/* routing rule handles of inter interface communication based on source l2 header type */
	rt_rule_info intra_iface_rt_rule_hdl;	/* routing rule handles of inter interface communication */
};

struct flt_rule_info
{
	client_info *p_client;
	uint32_t flt_rule_hdl[IPA_IP_MAX];
};

struct peer_iface_info
{
	class IPACM_LanToLan_Iface *peer;
	char rt_tbl_name_for_rt[IPA_IP_MAX][IPA_RESOURCE_NAME_MAX];
	char rt_tbl_name_for_flt[IPA_IP_MAX][IPA_RESOURCE_NAME_MAX];
	list<flt_rule_info> flt_rule;
};

class IPACM_LanToLan_Iface
{
public:
	IPACM_LanToLan_Iface(IPACM_Lan *p_iface);
	~IPACM_LanToLan_Iface();

	void add_client_rt_rule_for_new_iface();

	void add_all_inter_interface_client_flt_rule(ipa_ip_type iptype);

	void add_all_intra_interface_client_flt_rule(ipa_ip_type iptype);

	void handle_down_event();

	void handle_wlan_scc_mcc_switch();

	void handle_intra_interface_info();

	void 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);

	void handle_client_add(uint8_t *mac);

	void handle_client_del(uint8_t *mac);

	void print_data_structure_info();

	IPACM_Lan* get_iface_pointer();

	bool get_m_is_ip_addr_assigned(ipa_ip_type iptype);

	void set_m_is_ip_addr_assigned(ipa_ip_type iptype, bool value);

	bool get_m_support_inter_iface_offload();

	bool get_m_support_intra_iface_offload();

	void increment_ref_cnt_peer_l2_hdr_type(ipa_hdr_l2_type peer_l2_type);

	void decrement_ref_cnt_peer_l2_hdr_type(ipa_hdr_l2_type peer_l2_type);

private:

	IPACM_Lan *m_p_iface;
	bool m_is_ip_addr_assigned[IPA_IP_MAX];
	bool m_support_inter_iface_offload;
	bool m_support_intra_iface_offload;

	int ref_cnt_peer_l2_hdr_type[IPA_HDR_L2_MAX];	/* reference count of l2 header type of peer interfaces */
	uint32_t hdr_proc_ctx_for_inter_interface[IPA_HDR_L2_MAX];
	uint32_t hdr_proc_ctx_for_intra_interface;

	list<client_info> m_client_info;	/* client list */
	list<peer_iface_info> m_peer_iface_info;	/* peer information list */

	/* The following members are for intra-interface communication*/
	peer_iface_info m_intra_interface_info;

	void add_one_client_flt_rule(IPACM_LanToLan_Iface *peer_iface, client_info *client);

	void add_client_flt_rule(peer_iface_info *peer, client_info *client, ipa_ip_type iptype);

	void del_one_client_flt_rule(IPACM_LanToLan_Iface *peer_iface, client_info *client);

	void del_client_flt_rule(peer_iface_info *peer, client_info *client);

	void add_client_rt_rule(peer_iface_info *peer, client_info *client);

	void del_client_rt_rule(peer_iface_info *peer, client_info *client);

	void clear_all_flt_rule_for_one_peer_iface(peer_iface_info *peer);

	void clear_all_rt_rule_for_one_peer_iface(peer_iface_info *peer);

	void add_hdr_proc_ctx(ipa_hdr_l2_type peer_l2_type);

	void del_hdr_proc_ctx(ipa_hdr_l2_type peer_l2_type);

	void print_peer_info(peer_iface_info *peer_info);

};

class IPACM_LanToLan : public IPACM_Listener
{

public:

	IPACM_LanToLan();

private:

	~IPACM_LanToLan();

	list<class IPACM_LanToLan_Iface> m_iface;

	list<ipacm_event_eth_bridge> m_cached_client_add_event;

	void handle_iface_up(ipacm_event_eth_bridge *data);

	void handle_iface_down(ipacm_event_eth_bridge *data);

	void handle_client_add(ipacm_event_eth_bridge *data);

	void handle_client_del(ipacm_event_eth_bridge *data);

	void handle_wlan_scc_mcc_switch(ipacm_event_eth_bridge *data);

	void handle_new_iface_up(IPACM_LanToLan_Iface *new_iface, IPACM_LanToLan_Iface *exist_iface);

	void event_callback(ipa_cm_event_id event, void* param);

	void handle_cached_client_add_event(IPACM_Lan *p_iface);

	void clear_cached_client_add_event(IPACM_Lan *p_iface);

	void print_data_structure_info();

};

#endif