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data-ipa-cfg-mgr/ipacm/inc/IPACM_LanToLan.h

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+/*
+Copyright (c) 2014, The Linux Foundation. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+		* Redistributions of source code must retain the above copyright
+			notice, this list of conditions and the following disclaimer.
+		* Redistributions in binary form must reproduce the above
+			copyright notice, this list of conditions and the following
+			disclaimer in the documentation and/or other materials provided
+			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
+			from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+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
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+ * 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