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/*
* Copyright (c) 2017-2018, 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.
*/
#ifndef _IPACM_OFFLOAD_MANAGER_H_
#define _IPACM_OFFLOAD_MANAGER_H_
#include <list>
#include <stdint.h>
#include <IOffloadManager.h>
#include "IPACM_Defs.h"
using RET = ::IOffloadManager::RET;
using Prefix = ::IOffloadManager::Prefix;
using IP_FAM = ::IOffloadManager::IP_FAM;
using L4Protocol = ::IOffloadManager::ConntrackTimeoutUpdater::L4Protocol;
using natTimeoutUpdate_t = ::IOffloadManager::ConntrackTimeoutUpdater::natTimeoutUpdate_t;
//using ipAddrPortPair_t = ::IOffloadManager::ConntrackTimeoutUpdater::ipAddrPortPair_t;
//using UDP = ::IOffloadManager::ConntrackTimeoutUpdater::UDP;
//using TCP = ::IOffloadManager::ConntrackTimeoutUpdater::TCP;
#define MAX_EVENT_CACHE 10
typedef struct _framework_event_cache
{
/* IPACM interface name */
ipa_cm_event_id event;
char dev_name[IF_NAME_LEN];
Prefix prefix_cache;
Prefix prefix_cache_v6; //for setupstream use
bool valid;
}framework_event_cache;
class IPACM_OffloadManager : public IOffloadManager
{
public:
IPACM_OffloadManager();
static IPACM_OffloadManager* GetInstance();
virtual RET registerEventListener(IpaEventListener* /* listener */);
virtual RET unregisterEventListener(IpaEventListener* /* listener */);
virtual RET registerCtTimeoutUpdater(ConntrackTimeoutUpdater* /* cb */);
virtual RET unregisterCtTimeoutUpdater(ConntrackTimeoutUpdater* /* cb */);
virtual RET provideFd(int /* fd */, unsigned int /* group */);
virtual RET clearAllFds();
virtual bool isStaApSupported();
/* ---------------------------- ROUTE ------------------------------- */
virtual RET setLocalPrefixes(std::vector<Prefix> &/* prefixes */);
virtual RET addDownstream(const char * /* downstream */,
const Prefix & /* prefix */);
virtual RET removeDownstream(const char * /* downstream */,
const Prefix &/* prefix */);
virtual RET setUpstream(const char* /* iface */, const Prefix& /* v4Gw */, const Prefix& /* v6Gw */);
virtual RET stopAllOffload();
/* ------------------------- STATS/POLICY --------------------------- */
virtual RET setQuota(const char * /* upstream */, uint64_t /* limit */);
virtual RET getStats(const char * /* upstream */, bool /* reset */,
OffloadStatistics& /* ret */);
static IPACM_OffloadManager *pInstance;
IpaEventListener *elrInstance;
ConntrackTimeoutUpdater *touInstance;
bool search_framwork_cache(char * interface_name);
bool push_framework_event(const char * if_name, _ipacm_offload_prefix prefix);
static int num_offload_v4_tethered_iface;
private:
std::list<std::string> valid_ifaces;
bool upstream_v4_up;
bool upstream_v6_up;
int default_gw_index;
int post_route_evt(enum ipa_ip_type iptype, int index, ipa_cm_event_id event, const Prefix &gw_addr);
int ipa_get_if_index(const char *if_name, int *if_index);
int resetTetherStats(const char *upstream_name);
#ifdef FEATURE_IPACM_RESTART
int push_iface_up(const char *if_name, bool upstream);
#endif
static const char *DEVICE_NAME;
/* cache the add_downstream events if netdev is not ready */
framework_event_cache event_cache[MAX_EVENT_CACHE];
/* latest update cache entry */
int latest_cache_index;
}; /* IPACM_OffloadManager */
#endif /* _IPACM_OFFLOAD_MANAGER_H_ */
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