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/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2018 ZeroTier, Inc. https://www.zerotier.com/
*
* 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/>.
*
* --
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial closed-source software that incorporates or links
* directly against ZeroTier software without disclosing the source code
* of your own application.
*/
#ifndef ZT_TRACE_HPP
#define ZT_TRACE_HPP
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include "../include/ZeroTierOne.h"
#include "Constants.hpp"
#include "SharedPtr.hpp"
#include "Packet.hpp"
#include "Credential.hpp"
#include "InetAddress.hpp"
#include "Dictionary.hpp"
#include "Mutex.hpp"
#include "Hashtable.hpp"
namespace ZeroTier {
class RuntimeEnvironment;
class Address;
class Identity;
class Peer;
class Path;
class Network;
class NetworkConfig;
class MAC;
class CertificateOfMembership;
class CertificateOfOwnership;
class Revocation;
class Tag;
class Capability;
/**
* Remote tracing and trace logging handler
*/
class Trace
{
public:
/**
* Trace verbosity level
*/
enum Level
{
NORMAL = 0,
VERBOSE = 10,
RULES = 15,
DEBUG = 20,
INSANE = 30
};
/**
* Filter rule evaluation result log
*
* Each rule in a rule set gets a four-bit log entry. A log entry
* of zero means not evaluated. Otherwise each four-bit log entry
* contains two two-bit values of 01 for 'false' and 10 for 'true'.
* As with four-bit rules an 00 value here means this was not
* evaluated or was not relevant.
*/
class RuleResultLog
{
public:
RuleResultLog() {}
inline void log(const unsigned int rn,const uint8_t thisRuleMatches,const uint8_t thisSetMatches)
{
_l[rn >> 1] |= ( ((thisRuleMatches + 1) << 2) | (thisSetMatches + 1) ) << ((rn & 1) << 2);
}
inline void logSkipped(const unsigned int rn,const uint8_t thisSetMatches)
{
_l[rn >> 1] |= (thisSetMatches + 1) << ((rn & 1) << 2);
}
inline void clear()
{
memset(_l,0,sizeof(_l));
}
inline const uint8_t *data() const { return _l; }
inline unsigned int sizeBytes() const { return (ZT_MAX_NETWORK_RULES / 2); }
private:
uint8_t _l[ZT_MAX_NETWORK_RULES / 2];
};
Trace(const RuntimeEnvironment *renv) :
RR(renv),
_byNet(8)
{
}
void resettingPathsInScope(void *const tPtr,const Address &reporter,const InetAddress &reporterPhysicalAddress,const InetAddress &myPhysicalAddress,const InetAddress::IpScope scope);
void peerConfirmingUnknownPath(void *const tPtr,const uint64_t networkId,Peer &peer,const SharedPtr<Path> &path,const uint64_t packetId,const Packet::Verb verb);
void peerLearnedNewPath(void *const tPtr,const uint64_t networkId,Peer &peer,const SharedPtr<Path> &newPath,const uint64_t packetId);
void peerRedirected(void *const tPtr,const uint64_t networkId,Peer &peer,const SharedPtr<Path> &newPath);
void incomingPacketMessageAuthenticationFailure(void *const tPtr,const SharedPtr<Path> &path,const uint64_t packetId,const Address &source,const unsigned int hops,const char *reason);
void incomingPacketInvalid(void *const tPtr,const SharedPtr<Path> &path,const uint64_t packetId,const Address &source,const unsigned int hops,const Packet::Verb verb,const char *reason);
void incomingPacketDroppedHELLO(void *const tPtr,const SharedPtr<Path> &path,const uint64_t packetId,const Address &source,const char *reason);
void outgoingNetworkFrameDropped(void *const tPtr,const SharedPtr<Network> &network,const MAC &sourceMac,const MAC &destMac,const unsigned int etherType,const unsigned int vlanId,const unsigned int frameLen,const char *reason);
void incomingNetworkAccessDenied(void *const tPtr,const SharedPtr<Network> &network,const SharedPtr<Path> &path,const uint64_t packetId,const unsigned int packetLength,const Address &source,const Packet::Verb verb,bool credentialsRequested);
void incomingNetworkFrameDropped(void *const tPtr,const SharedPtr<Network> &network,const SharedPtr<Path> &path,const uint64_t packetId,const unsigned int packetLength,const Address &source,const Packet::Verb verb,const MAC &sourceMac,const MAC &destMac,const char *reason);
void networkConfigRequestSent(void *const tPtr,const Network &network,const Address &controller);
void networkFilter(
void *const tPtr,
const Network &network,
const RuleResultLog &primaryRuleSetLog,
const RuleResultLog *const matchingCapabilityRuleSetLog,
const Capability *const matchingCapability,
const Address &ztSource,
const Address &ztDest,
const MAC &macSource,
const MAC &macDest,
const uint8_t *const frameData,
const unsigned int frameLen,
const unsigned int etherType,
const unsigned int vlanId,
const bool noTee,
const bool inbound,
const int accept);
void credentialRejected(void *const tPtr,const CertificateOfMembership &c,const char *reason);
void credentialRejected(void *const tPtr,const CertificateOfOwnership &c,const char *reason);
void credentialRejected(void *const tPtr,const Capability &c,const char *reason);
void credentialRejected(void *const tPtr,const Tag &c,const char *reason);
void credentialRejected(void *const tPtr,const Revocation &c,const char *reason);
void updateMemoizedSettings();
private:
const RuntimeEnvironment *const RR;
void _send(void *const tPtr,const Dictionary<ZT_MAX_REMOTE_TRACE_SIZE> &d,const Address &dest);
void _spamToAllNetworks(void *const tPtr,const Dictionary<ZT_MAX_REMOTE_TRACE_SIZE> &d,const Level level);
Address _globalTarget;
Trace::Level _globalLevel;
Hashtable< uint64_t,std::pair< Address,Trace::Level > > _byNet;
Mutex _byNet_m;
};
} // namespace ZeroTier
#endif
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