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/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2015 ZeroTier, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ZT_SQLITENETWORKCONTROLLER_HPP
#define ZT_SQLITENETWORKCONTROLLER_HPP
#include <stdint.h>
#include <string>
#include <map>
#include <vector>
#include <set>
#include <list>
#include "../node/Constants.hpp"
#include "../node/NetworkController.hpp"
#include "../node/Mutex.hpp"
#include "../node/Utils.hpp"
#include "../node/Address.hpp"
#include "../node/InetAddress.hpp"
#include "../osdep/OSUtils.hpp"
#include "../osdep/Thread.hpp"
#include "../osdep/BlockingQueue.hpp"
#include "../ext/json/json.hpp"
#include "JSONDB.hpp"
// Number of background threads to start -- not actually started until needed
#define ZT_EMBEDDEDNETWORKCONTROLLER_BACKGROUND_THREAD_COUNT 2
// TTL for circuit tests
#define ZT_EMBEDDEDNETWORKCONTROLLER_CIRCUIT_TEST_EXPIRATION 120000
namespace ZeroTier {
class Node;
class EmbeddedNetworkController : public NetworkController
{
public:
/**
* @param node Parent node
* @param dbPath Path to store data
*/
EmbeddedNetworkController(Node *node,const char *dbPath);
virtual ~EmbeddedNetworkController();
virtual void init(const Identity &signingId,Sender *sender);
virtual void request(
uint64_t nwid,
const InetAddress &fromAddr,
uint64_t requestPacketId,
const Identity &identity,
const Dictionary<ZT_NETWORKCONFIG_METADATA_DICT_CAPACITY> &metaData);
unsigned int handleControlPlaneHttpGET(
const std::vector<std::string> &path,
const std::map<std::string,std::string> &urlArgs,
const std::map<std::string,std::string> &headers,
const std::string &body,
std::string &responseBody,
std::string &responseContentType);
unsigned int handleControlPlaneHttpPOST(
const std::vector<std::string> &path,
const std::map<std::string,std::string> &urlArgs,
const std::map<std::string,std::string> &headers,
const std::string &body,
std::string &responseBody,
std::string &responseContentType);
unsigned int handleControlPlaneHttpDELETE(
const std::vector<std::string> &path,
const std::map<std::string,std::string> &urlArgs,
const std::map<std::string,std::string> &headers,
const std::string &body,
std::string &responseBody,
std::string &responseContentType);
void threadMain()
throw();
private:
static void _circuitTestCallback(ZT_Node *node,ZT_CircuitTest *test,const ZT_CircuitTestReport *report);
void _request(
uint64_t nwid,
const InetAddress &fromAddr,
uint64_t requestPacketId,
const Identity &identity,
const Dictionary<ZT_NETWORKCONFIG_METADATA_DICT_CAPACITY> &metaData);
struct _RQEntry
{
uint64_t nwid;
uint64_t requestPacketId;
InetAddress fromAddr;
Identity identity;
Dictionary<ZT_NETWORKCONFIG_METADATA_DICT_CAPACITY> metaData;
};
BlockingQueue<_RQEntry *> _queue;
Thread _threads[ZT_EMBEDDEDNETWORKCONTROLLER_BACKGROUND_THREAD_COUNT];
bool _threadsStarted;
Mutex _threads_m;
// Gathers a bunch of statistics about members of a network, IP assignments, etc. that we need in various places
struct _NetworkMemberInfo
{
_NetworkMemberInfo() : authorizedMemberCount(0),activeMemberCount(0),totalMemberCount(0),mostRecentDeauthTime(0) {}
std::set<Address> activeBridges;
std::set<InetAddress> allocatedIps;
unsigned long authorizedMemberCount;
unsigned long activeMemberCount;
unsigned long totalMemberCount;
uint64_t mostRecentDeauthTime;
uint64_t nmiTimestamp; // time this NMI structure was computed
};
std::map<uint64_t,_NetworkMemberInfo> _nmiCache;
Mutex _nmiCache_m;
void _getNetworkMemberInfo(uint64_t now,uint64_t nwid,_NetworkMemberInfo &nmi);
inline void _clearNetworkMemberInfoCache(const uint64_t nwid)
{
Mutex::Lock _l(_nmiCache_m);
_nmiCache.erase(nwid);
}
void _pushMemberUpdate(uint64_t now,uint64_t nwid,const nlohmann::json &member);
// These init objects with default and static/informational fields
inline void _initMember(nlohmann::json &member)
{
if (!member.count("authorized")) member["authorized"] = false;
if (!member.count("authHistory")) member["authHistory"] = nlohmann::json::array();
if (!member.count("ipAssignments")) member["ipAssignments"] = nlohmann::json::array();
if (!member.count("recentLog")) member["recentLog"] = nlohmann::json::array();
if (!member.count("activeBridge")) member["activeBridge"] = false;
if (!member.count("tags")) member["tags"] = nlohmann::json::array();
if (!member.count("capabilities")) member["capabilities"] = nlohmann::json::array();
if (!member.count("creationTime")) member["creationTime"] = OSUtils::now();
if (!member.count("noAutoAssignIps")) member["noAutoAssignIps"] = false;
if (!member.count("revision")) member["revision"] = 0ULL;
if (!member.count("lastDeauthorizedTime")) member["lastDeauthorizedTime"] = 0ULL;
if (!member.count("lastAuthorizedTime")) member["lastAuthorizedTime"] = 0ULL;
member["objtype"] = "member";
}
inline void _initNetwork(nlohmann::json &network)
{
if (!network.count("private")) network["private"] = true;
if (!network.count("creationTime")) network["creationTime"] = OSUtils::now();
if (!network.count("name")) network["name"] = "";
if (!network.count("multicastLimit")) network["multicastLimit"] = (uint64_t)32;
if (!network.count("enableBroadcast")) network["enableBroadcast"] = true;
if (!network.count("v4AssignMode")) network["v4AssignMode"] = {{"zt",false}};
if (!network.count("v6AssignMode")) network["v6AssignMode"] = {{"rfc4193",false},{"zt",false},{"6plane",false}};
if (!network.count("authTokens")) network["authTokens"] = nlohmann::json::array();
if (!network.count("capabilities")) network["capabilities"] = nlohmann::json::array();
if (!network.count("tags")) network["tags"] = nlohmann::json::array();
if (!network.count("routes")) network["routes"] = nlohmann::json::array();
if (!network.count("ipAssignmentPools")) network["ipAssignmentPools"] = nlohmann::json::array();
if (!network.count("rules")) {
// If unspecified, rules are set to allow anything and behave like a flat L2 segment
network["rules"] = {{
{ "not",false },
{ "or", false },
{ "type","ACTION_ACCEPT" }
}};
}
network["objtype"] = "network";
}
inline void _addNetworkNonPersistedFields(nlohmann::json &network,uint64_t now,const _NetworkMemberInfo &nmi)
{
network["clock"] = now;
network["authorizedMemberCount"] = nmi.authorizedMemberCount;
network["activeMemberCount"] = nmi.activeMemberCount;
network["totalMemberCount"] = nmi.totalMemberCount;
}
inline void _addMemberNonPersistedFields(nlohmann::json &member,uint64_t now)
{
member["clock"] = now;
}
JSONDB _db;
Mutex _db_m;
Node *const _node;
std::string _path;
NetworkController::Sender *_sender;
Identity _signingId;
std::list< ZT_CircuitTest > _tests;
Mutex _tests_m;
std::map< std::pair<uint64_t,uint64_t>,uint64_t > _lastRequestTime; // last request time by <address,networkId>
Mutex _lastRequestTime_m;
};
} // namespace ZeroTier
#endif
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