133 lines
3.8 KiB
C
133 lines
3.8 KiB
C
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/*
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Copyright (c) 2013, The Linux Foundation. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the following
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disclaimer in the documentation and/or other materials provided
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with the distribution.
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* Neither the name of The Linux Foundation nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*!
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@file
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IPACM_Lan.h
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@brief
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This file implements the LAN iface definitions
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@Author
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Skylar Chang
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*/
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#ifndef IPACM_LAN_H
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#define IPACM_LAN_H
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#include <stdio.h>
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#include <linux/msm_ipa.h>
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#include "IPACM_CmdQueue.h"
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#include "IPACM_Iface.h"
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#include "IPACM_Routing.h"
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#include "IPACM_Filtering.h"
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#define IPA_MAX_NUM_UNICAST_ROUTE_RULES 6
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#define IPA_WAN_DEFAULT_FILTER_RULE_HANDLES 1
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#define IPA_PRIV_SUBNET_FILTER_RULE_HANDLES 3
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/* store each lan-iface unicast routing rule and its handler*/
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struct ipa_lan_rt_rule
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{
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ipa_ip_type ip;
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uint32_t v4_addr;
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uint32_t v4_addr_mask;
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uint32_t v6_addr[4];
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uint32_t rt_rule_hdl[0];
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};
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/* lan iface */
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class IPACM_Lan : public IPACM_Iface
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{
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public:
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IPACM_Lan(int iface_index);
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~IPACM_Lan();
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/* store lan's wan-up filter rule handlers */
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uint32_t lan_wan_fl_rule_hdl[IPA_WAN_DEFAULT_FILTER_RULE_HANDLES];
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/* store private-subnet filter rule handlers */
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uint32_t private_fl_rule_hdl[IPA_PRIV_SUBNET_FILTER_RULE_HANDLES];
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/* LAN-iface's callback function */
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void event_callback(ipa_cm_event_id event,
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void *data);
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/* configure filter rule for wan_up event*/
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virtual int handle_wan_up(void);
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/* delete filter rule for wan_down event*/
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virtual int handle_wan_down(void);
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/* configure private subnet filter rules*/
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virtual int handle_private_subnet(ipa_ip_type iptype);
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/* handle new_address event*/
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int handle_addr_evt(ipacm_event_data_addr *data);
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private:
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/* dynamically allocate lan iface's unicast routing rule structure */
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int rt_rule_len;
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ipa_lan_rt_rule *route_rule;
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uint32_t v6_addr[IPV6_NUM_ADDR][4];
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int ipv6_set;
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/* store the number of lan-iface's unicast routing rule */
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int num_uni_rt;
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inline ipa_lan_rt_rule* get_rt_ruleptr(ipa_lan_rt_rule *param, int cnt)
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{
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char *ret = ((char *)param) + (rt_rule_len * cnt);
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return (ipa_lan_rt_rule *)ret;
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}
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/* handle unicast routing rule add event for ipv4 */
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int handle_route_add_evt(ipacm_event_data_addr *data);
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/* handle unicast routing rule add event for ipv6 */
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int handle_route_add_evt_v6(ipacm_event_data_all *data);
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/* handle unicast routing rule del event for ipv4 */
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int handle_route_del_evt(ipacm_event_data_addr *data);
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/* handle unicast routing rule del event for ipv6 */
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int handle_route_del_evt_v6(ipacm_event_data_all *data);
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/*handle wlan iface down event*/
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int handle_down_evt();
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};
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#endif /* IPACM_LAN_H */
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