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Remove old circuit test code. Rules engine will let us do this much better and more simply.

pull/1/head
Adam Ierymenko 9 years ago
parent
36049a940c
commit
2ec88e8008
9 changed files with 4 additions and 764 deletions
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  1. 125
      controller/EmbeddedNetworkController.cpp
  2. 7
      controller/EmbeddedNetworkController.hpp
  3. 226
      include/ZeroTierOne.h
  4. 196
      node/IncomingPacket.cpp
  5. 2
      node/IncomingPacket.hpp
  6. 88
      node/Node.cpp
  7. 6
      node/Node.hpp
  8. 2
      node/Packet.cpp
  9. 116
      node/Packet.hpp

125
controller/EmbeddedNetworkController.cpp
Unescape View File

@ -726,59 +726,6 @@ unsigned int EmbeddedNetworkController::handleControlPlaneHttpPOST(
responseContentType = "application/json";
return 200;
} else if ((path.size() == 3)&&(path[2] == "test")) {
Mutex::Lock _l(_tests_m);
_tests.push_back(ZT_CircuitTest());
ZT_CircuitTest *const test = &(_tests.back());
memset(test,0,sizeof(ZT_CircuitTest));
Utils::getSecureRandom(&(test->testId),sizeof(test->testId));
test->credentialNetworkId = nwid;
test->ptr = (void *)this;
json hops = b["hops"];
if (hops.is_array()) {
for(unsigned long i=0;i<hops.size();++i) {
json &hops2 = hops[i];
if (hops2.is_array()) {
for(unsigned long j=0;j<hops2.size();++j) {
std::string s = hops2[j];
test->hops[test->hopCount].addresses[test->hops[test->hopCount].breadth++] = Utils::hexStrToU64(s.c_str()) & 0xffffffffffULL;
}
++test->hopCount;
} else if (hops2.is_string()) {
std::string s = hops2;
test->hops[test->hopCount].addresses[test->hops[test->hopCount].breadth++] = Utils::hexStrToU64(s.c_str()) & 0xffffffffffULL;
++test->hopCount;
}
}
}
test->reportAtEveryHop = (OSUtils::jsonBool(b["reportAtEveryHop"],true) ? 1 : 0);
if (!test->hopCount) {
_tests.pop_back();
responseBody = "{ \"message\": \"a test must contain at least one hop\" }";
responseContentType = "application/json";
return 400;
}
test->timestamp = OSUtils::now();
if (_node) {
_node->circuitTestBegin((void *)0,test,&(EmbeddedNetworkController::_circuitTestCallback));
} else {
_tests.pop_back();
return 500;
}
char json[512];
Utils::snprintf(json,sizeof(json),"{\"testId\":\"%.16llx\",\"timestamp\":%llu}",test->testId,test->timestamp);
responseBody = json;
responseContentType = "application/json";
return 200;
} // else 404
} else {
@ -1118,7 +1065,6 @@ unsigned int EmbeddedNetworkController::handleControlPlaneHttpDELETE(
void EmbeddedNetworkController::threadMain()
throw()
{
uint64_t lastCircuitTestCheck = 0;
_RQEntry *qe = (_RQEntry *)0;
while ((_running)&&(_queue.get(qe))) {
try {
@ -1153,80 +1099,9 @@ void EmbeddedNetworkController::threadMain()
}
} catch ( ... ) {}
delete qe;
if (_running) {
uint64_t now = OSUtils::now();
if ((now - lastCircuitTestCheck) > ZT_EMBEDDEDNETWORKCONTROLLER_CIRCUIT_TEST_EXPIRATION) {
lastCircuitTestCheck = now;
Mutex::Lock _l(_tests_m);
for(std::list< ZT_CircuitTest >::iterator i(_tests.begin());i!=_tests.end();) {
if ((now - i->timestamp) > ZT_EMBEDDEDNETWORKCONTROLLER_CIRCUIT_TEST_EXPIRATION) {
_node->circuitTestEnd(&(*i));
_tests.erase(i++);
} else ++i;
}
}
}
}
}
void EmbeddedNetworkController::_circuitTestCallback(ZT_Node *node,ZT_CircuitTest *test,const ZT_CircuitTestReport *report)
{
char tmp[2048],id[128];
EmbeddedNetworkController *const self = reinterpret_cast<EmbeddedNetworkController *>(test->ptr);
if ((!test)||(!report)||(!test->credentialNetworkId)) return; // sanity check
const uint64_t now = OSUtils::now();
Utils::snprintf(id,sizeof(id),"network/%.16llx/test/%.16llx-%.16llx-%.10llx-%.10llx",test->credentialNetworkId,test->testId,now,report->upstream,report->current);
Utils::snprintf(tmp,sizeof(tmp),
"{\"id\": \"%s\","
"\"objtype\": \"circuit_test\","
"\"timestamp\": %llu,"
"\"networkId\": \"%.16llx\","
"\"testId\": \"%.16llx\","
"\"upstream\": \"%.10llx\","
"\"current\": \"%.10llx\","
"\"receivedTimestamp\": %llu,"
"\"sourcePacketId\": \"%.16llx\","
"\"flags\": %llu,"
"\"sourcePacketHopCount\": %u,"
"\"errorCode\": %u,"
"\"vendor\": %d,"
"\"protocolVersion\": %u,"
"\"majorVersion\": %u,"
"\"minorVersion\": %u,"
"\"revision\": %u,"
"\"platform\": %d,"
"\"architecture\": %d,"
"\"receivedOnLocalAddress\": \"%s\","
"\"receivedFromRemoteAddress\": \"%s\","
"\"receivedFromLinkQuality\": %f}",
id + 30, // last bit only, not leading path
(unsigned long long)test->timestamp,
(unsigned long long)test->credentialNetworkId,
(unsigned long long)test->testId,
(unsigned long long)report->upstream,
(unsigned long long)report->current,
(unsigned long long)now,
(unsigned long long)report->sourcePacketId,
(unsigned long long)report->flags,
report->sourcePacketHopCount,
report->errorCode,
(int)report->vendor,
report->protocolVersion,
report->majorVersion,
report->minorVersion,
report->revision,
(int)report->platform,
(int)report->architecture,
reinterpret_cast<const InetAddress *>(&(report->receivedOnLocalAddress))->toString().c_str(),
reinterpret_cast<const InetAddress *>(&(report->receivedFromRemoteAddress))->toString().c_str(),
((double)report->receivedFromLinkQuality / (double)ZT_PATH_LINK_QUALITY_MAX));
self->_db.writeRaw(id,std::string(tmp));
}
void EmbeddedNetworkController::_request(
uint64_t nwid,
const InetAddress &fromAddr,

7
controller/EmbeddedNetworkController.hpp
Unescape View File

@ -45,9 +45,6 @@
#include "JSONDB.hpp"
// TTL for circuit tests
#define ZT_EMBEDDEDNETWORKCONTROLLER_CIRCUIT_TEST_EXPIRATION 120000
namespace ZeroTier {
class Node;
@ -110,7 +107,6 @@ private:
} type;
};
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);
inline void _startThreads()
@ -219,9 +215,6 @@ private:
NetworkController::Sender *_sender;
Identity _signingId;
std::list< ZT_CircuitTest > _tests;
Mutex _tests_m;
struct _MemberStatusKey
{
_MemberStatusKey() : networkId(0),nodeId(0) {}

226
include/ZeroTierOne.h
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@ -760,7 +760,6 @@ typedef struct
*/
uint64_t expiration;
struct {
uint64_t from;
uint64_t to;
@ -1105,197 +1104,6 @@ typedef struct
unsigned long peerCount;
} ZT_PeerList;
/**
* ZeroTier circuit test configuration and path
*/
typedef struct {
/**
* Test ID -- an arbitrary 64-bit identifier
*/
uint64_t testId;
/**
* Timestamp -- sent with test and echoed back by each reporter
*/
uint64_t timestamp;
/**
* Originator credential: network ID
*
* If this is nonzero, a network ID will be set for this test and
* the originator must be its primary network controller. This is
* currently the only authorization method available, so it must
* be set to run a test.
*/
uint64_t credentialNetworkId;
/**
* Hops in circuit test (a.k.a. FIFO for graph traversal)
*/
struct {
/**
* Hop flags (currently unused, must be zero)
*/
unsigned int flags;
/**
* Number of addresses in this hop (max: ZT_CIRCUIT_TEST_MAX_HOP_BREADTH)
*/
unsigned int breadth;
/**
* 40-bit ZeroTier addresses (most significant 24 bits ignored)
*/
uint64_t addresses[ZT_CIRCUIT_TEST_MAX_HOP_BREADTH];
} hops[ZT_CIRCUIT_TEST_MAX_HOPS];
/**
* Number of hops (max: ZT_CIRCUIT_TEST_MAX_HOPS)
*/
unsigned int hopCount;
/**
* If non-zero, circuit test will report back at every hop
*/
int reportAtEveryHop;
/**
* An arbitrary user-settable pointer
*/
void *ptr;
/**
* Pointer for internal use -- initialize to zero and do not modify
*/
void *_internalPtr;
} ZT_CircuitTest;
/**
* Circuit test result report
*/
typedef struct {
/**
* Sender of report (current hop)
*/
uint64_t current;
/**
* Previous hop
*/
uint64_t upstream;
/**
* 64-bit test ID
*/
uint64_t testId;
/**
* Timestamp from original test (echoed back at each hop)
*/
uint64_t timestamp;
/**
* 64-bit packet ID of packet received by the reporting device
*/
uint64_t sourcePacketId;
/**
* Flags
*/
uint64_t flags;
/**
* ZeroTier protocol-level hop count of packet received by reporting device (>0 indicates relayed)
*/
unsigned int sourcePacketHopCount;
/**
* Error code (currently unused, will be zero)
*/
unsigned int errorCode;
/**
* Remote device vendor ID
*/
enum ZT_Vendor vendor;
/**
* Remote device protocol compliance version
*/
unsigned int protocolVersion;
/**
* Software major version
*/
unsigned int majorVersion;
/**
* Software minor version
*/
unsigned int minorVersion;
/**
* Software revision
*/
unsigned int revision;
/**
* Platform / OS
*/
enum ZT_Platform platform;
/**
* System architecture
*/
enum ZT_Architecture architecture;
/**
* Local device address on which packet was received by reporting device
*
* This may have ss_family equal to zero (null address) if unspecified.
*/
struct sockaddr_storage receivedOnLocalAddress;
/**
* Remote address from which reporter received the test packet
*
* This may have ss_family set to zero (null address) if unspecified.
*/
struct sockaddr_storage receivedFromRemoteAddress;
/**
* Path link quality of physical path over which test was received
*/
int receivedFromLinkQuality;
/**
* Next hops to which packets are being or will be sent by the reporter
*
* In addition to reporting back, the reporter may send the test on if
* there are more recipients in the FIFO. If it does this, it can report
* back the address(es) that make up the next hop and the physical address
* for each if it has one. The physical address being null/unspecified
* typically indicates that no direct path exists and the next packet
* will be relayed.
*/
struct {
/**
* 40-bit ZeroTier address
*/
uint64_t address;
/**
* Physical address or null address (ss_family == 0) if unspecified or unknown
*/
struct sockaddr_storage physicalAddress;
} nextHops[ZT_CIRCUIT_TEST_MAX_HOP_BREADTH];
/**
* Number of next hops reported in nextHops[]
*/
unsigned int nextHopCount;
} ZT_CircuitTestReport;
/**
* A cluster member's status
*/
@ -1957,40 +1765,6 @@ int ZT_Node_sendUserMessage(ZT_Node *node,void *tptr,uint64_t dest,uint64_t type
*/
void ZT_Node_setNetconfMaster(ZT_Node *node,void *networkConfigMasterInstance);
/**
* Initiate a VL1 circuit test
*
* This sends an initial VERB_CIRCUIT_TEST and reports results back to the
* supplied callback until circuitTestEnd() is called. The supplied
* ZT_CircuitTest structure should be initially zeroed and then filled
* in with settings and hops.
*
* It is the caller's responsibility to call circuitTestEnd() and then
* to dispose of the test structure. Otherwise this node will listen
* for results forever.
*
* @param node Node instance
* @param tptr Thread pointer to pass to functions/callbacks resulting from this call
* @param test Test configuration
* @param reportCallback Function to call each time a report is received
* @return OK or error if, for example, test is too big for a packet or support isn't compiled in
*/
enum ZT_ResultCode ZT_Node_circuitTestBegin(ZT_Node *node,void *tptr,ZT_CircuitTest *test,void (*reportCallback)(ZT_Node *, ZT_CircuitTest *,const ZT_CircuitTestReport *));
/**
* Stop listening for results to a given circuit test
*
* This does not free the 'test' structure. The caller may do that
* after calling this method to unregister it.
*
* Any reports that are received for a given test ID after it is
* terminated are ignored.
*
* @param node Node instance
* @param test Test configuration to unregister
*/
void ZT_Node_circuitTestEnd(ZT_Node *node,ZT_CircuitTest *test);
/**
* Initialize cluster operation
*

196
node/IncomingPacket.cpp
Unescape View File

@ -115,8 +115,6 @@ bool IncomingPacket::tryDecode(const RuntimeEnvironment *RR,void *tPtr)
case Packet::VERB_MULTICAST_GATHER: return _doMULTICAST_GATHER(RR,tPtr,peer);
case Packet::VERB_MULTICAST_FRAME: return _doMULTICAST_FRAME(RR,tPtr,peer);
case Packet::VERB_PUSH_DIRECT_PATHS: return _doPUSH_DIRECT_PATHS(RR,tPtr,peer);
case Packet::VERB_CIRCUIT_TEST: return _doCIRCUIT_TEST(RR,tPtr,peer);
case Packet::VERB_CIRCUIT_TEST_REPORT: return _doCIRCUIT_TEST_REPORT(RR,tPtr,peer);
case Packet::VERB_USER_MESSAGE: return _doUSER_MESSAGE(RR,tPtr,peer);
}
} else {
@ -1252,196 +1250,6 @@ bool IncomingPacket::_doPUSH_DIRECT_PATHS(const RuntimeEnvironment *RR,void *tPt
return true;
}
bool IncomingPacket::_doCIRCUIT_TEST(const RuntimeEnvironment *RR,void *tPtr,const SharedPtr<Peer> &peer)
{
try {
const Address originatorAddress(field(ZT_PACKET_IDX_PAYLOAD,ZT_ADDRESS_LENGTH),ZT_ADDRESS_LENGTH);
SharedPtr<Peer> originator(RR->topology->getPeer(tPtr,originatorAddress));
if (!originator) {
RR->sw->requestWhois(tPtr,originatorAddress);
return false;
}
const unsigned int flags = at<uint16_t>(ZT_PACKET_IDX_PAYLOAD + 5);
const uint64_t timestamp = at<uint64_t>(ZT_PACKET_IDX_PAYLOAD + 7);
const uint64_t testId = at<uint64_t>(ZT_PACKET_IDX_PAYLOAD + 15);
// Tracks total length of variable length fields, initialized to originator credential length below
unsigned int vlf;
// Originator credentials -- right now only a network ID for which the originator is controller or is authorized by controller is allowed
const unsigned int originatorCredentialLength = vlf = at<uint16_t>(ZT_PACKET_IDX_PAYLOAD + 23);
uint64_t originatorCredentialNetworkId = 0;
if (originatorCredentialLength >= 1) {
switch((*this)[ZT_PACKET_IDX_PAYLOAD + 25]) {
case 0x01: { // 64-bit network ID, originator must be controller
if (originatorCredentialLength >= 9)
originatorCredentialNetworkId = at<uint64_t>(ZT_PACKET_IDX_PAYLOAD + 26);
} break;
default: break;
}
}
// Add length of "additional fields," which are currently unused
vlf += at<uint16_t>(ZT_PACKET_IDX_PAYLOAD + 25 + vlf);
// Verify signature -- only tests signed by their originators are allowed
const unsigned int signatureLength = at<uint16_t>(ZT_PACKET_IDX_PAYLOAD + 27 + vlf);
if (!originator->identity().verify(field(ZT_PACKET_IDX_PAYLOAD,27 + vlf),27 + vlf,field(ZT_PACKET_IDX_PAYLOAD + 29 + vlf,signatureLength),signatureLength)) {
TRACE("dropped CIRCUIT_TEST from %s(%s): signature by originator %s invalid",source().toString().c_str(),_path->address().toString().c_str(),originatorAddress.toString().c_str());
peer->received(tPtr,_path,hops(),packetId(),Packet::VERB_CIRCUIT_TEST,0,Packet::VERB_NOP,false);
return true;
}
vlf += signatureLength;
// Save this length so we can copy the immutable parts of this test
// into the one we send along to next hops.
const unsigned int lengthOfSignedPortionAndSignature = 29 + vlf;
// Add length of second "additional fields" section.
vlf += at<uint16_t>(ZT_PACKET_IDX_PAYLOAD + 29 + vlf);
uint64_t reportFlags = 0;
// Check credentials (signature already verified)
if (originatorCredentialNetworkId) {
SharedPtr<Network> network(RR->node->network(originatorCredentialNetworkId));
if ((!network)||(!network->config().circuitTestingAllowed(originatorAddress))) {
TRACE("dropped CIRCUIT_TEST from %s(%s): originator %s specified network ID %.16llx as credential, and we don't belong to that network or originator is not allowed'",source().toString().c_str(),_path->address().toString().c_str(),originatorAddress.toString().c_str(),originatorCredentialNetworkId);
peer->received(tPtr,_path,hops(),packetId(),Packet::VERB_CIRCUIT_TEST,0,Packet::VERB_NOP,false);
return true;
}
if (network->gate(tPtr,peer))
reportFlags |= ZT_CIRCUIT_TEST_REPORT_FLAGS_UPSTREAM_AUTHORIZED_IN_PATH;
} else {
TRACE("dropped CIRCUIT_TEST from %s(%s): originator %s did not specify a credential or credential type",source().toString().c_str(),_path->address().toString().c_str(),originatorAddress.toString().c_str());
peer->received(tPtr,_path,hops(),packetId(),Packet::VERB_CIRCUIT_TEST,0,Packet::VERB_NOP,false);
return true;
}
const uint64_t now = RR->node->now();
unsigned int breadth = 0;
Address nextHop[256]; // breadth is a uin8_t, so this is the max
InetAddress nextHopBestPathAddress[256];
unsigned int remainingHopsPtr = ZT_PACKET_IDX_PAYLOAD + 33 + vlf;
if ((ZT_PACKET_IDX_PAYLOAD + 31 + vlf) < size()) {
// unsigned int nextHopFlags = (*this)[ZT_PACKET_IDX_PAYLOAD + 31 + vlf]
breadth = (*this)[ZT_PACKET_IDX_PAYLOAD + 32 + vlf];
for(unsigned int h=0;h<breadth;++h) {
nextHop[h].setTo(field(remainingHopsPtr,ZT_ADDRESS_LENGTH),ZT_ADDRESS_LENGTH);
remainingHopsPtr += ZT_ADDRESS_LENGTH;
SharedPtr<Peer> nhp(RR->topology->getPeer(tPtr,nextHop[h]));
if (nhp) {
SharedPtr<Path> nhbp(nhp->getBestPath(now,false));
if ((nhbp)&&(nhbp->alive(now)))
nextHopBestPathAddress[h] = nhbp->address();
}
}
}
// Report back to originator, depending on flags and whether we are last hop
if ( ((flags & 0x01) != 0) || ((breadth == 0)&&((flags & 0x02) != 0)) ) {
Packet outp(originatorAddress,RR->identity.address(),Packet::VERB_CIRCUIT_TEST_REPORT);
outp.append((uint64_t)timestamp);
outp.append((uint64_t)testId);
outp.append((uint64_t)0); // field reserved for future use
outp.append((uint8_t)ZT_VENDOR_ZEROTIER);
outp.append((uint8_t)ZT_PROTO_VERSION);
outp.append((uint8_t)ZEROTIER_ONE_VERSION_MAJOR);
outp.append((uint8_t)ZEROTIER_ONE_VERSION_MINOR);
outp.append((uint16_t)ZEROTIER_ONE_VERSION_REVISION);
outp.append((uint16_t)ZT_PLATFORM_UNSPECIFIED);
outp.append((uint16_t)ZT_ARCHITECTURE_UNSPECIFIED);
outp.append((uint16_t)0); // error code, currently unused
outp.append((uint64_t)reportFlags);
outp.append((uint64_t)packetId());
peer->address().appendTo(outp);
outp.append((uint8_t)hops());
_path->localAddress().serialize(outp);
_path->address().serialize(outp);
outp.append((uint16_t)_path->linkQuality());
outp.append((uint8_t)breadth);
for(unsigned int h=0;h<breadth;++h) {
nextHop[h].appendTo(outp);
nextHopBestPathAddress[h].serialize(outp); // appends 0 if null InetAddress
}
RR->sw->send(tPtr,outp,true);
}
// If there are next hops, forward the test along through the graph
if (breadth > 0) {
Packet outp(Address(),RR->identity.address(),Packet::VERB_CIRCUIT_TEST);
outp.append(field(ZT_PACKET_IDX_PAYLOAD,lengthOfSignedPortionAndSignature),lengthOfSignedPortionAndSignature);
outp.append((uint16_t)0); // no additional fields
if (remainingHopsPtr < size())
outp.append(field(remainingHopsPtr,size() - remainingHopsPtr),size() - remainingHopsPtr);
for(unsigned int h=0;h<breadth;++h) {
if (RR->identity.address() != nextHop[h]) { // next hops that loop back to the current hop are not valid
outp.newInitializationVector();
outp.setDestination(nextHop[h]);
RR->sw->send(tPtr,outp,true);
}
}
}
peer->received(tPtr,_path,hops(),packetId(),Packet::VERB_CIRCUIT_TEST,0,Packet::VERB_NOP,false);
} catch ( ... ) {
TRACE("dropped CIRCUIT_TEST from %s(%s): unexpected exception",source().toString().c_str(),_path->address().toString().c_str());
}
return true;
}
bool IncomingPacket::_doCIRCUIT_TEST_REPORT(const RuntimeEnvironment *RR,void *tPtr,const SharedPtr<Peer> &peer)
{
try {
ZT_CircuitTestReport report;
memset(&report,0,sizeof(report));
report.current = peer->address().toInt();
report.upstream = Address(field(ZT_PACKET_IDX_PAYLOAD + 52,ZT_ADDRESS_LENGTH),ZT_ADDRESS_LENGTH).toInt();
report.testId = at<uint64_t>(ZT_PACKET_IDX_PAYLOAD + 8);
report.timestamp = at<uint64_t>(ZT_PACKET_IDX_PAYLOAD);
report.sourcePacketId = at<uint64_t>(ZT_PACKET_IDX_PAYLOAD + 44);
report.flags = at<uint64_t>(ZT_PACKET_IDX_PAYLOAD + 36);
report.sourcePacketHopCount = (*this)[ZT_PACKET_IDX_PAYLOAD + 57]; // end of fixed length headers: 58
report.errorCode = at<uint16_t>(ZT_PACKET_IDX_PAYLOAD + 34);
report.vendor = (enum ZT_Vendor)((*this)[ZT_PACKET_IDX_PAYLOAD + 24]);
report.protocolVersion = (*this)[ZT_PACKET_IDX_PAYLOAD + 25];
report.majorVersion = (*this)[ZT_PACKET_IDX_PAYLOAD + 26];
report.minorVersion = (*this)[ZT_PACKET_IDX_PAYLOAD + 27];
report.revision = at<uint16_t>(ZT_PACKET_IDX_PAYLOAD + 28);
report.platform = (enum ZT_Platform)at<uint16_t>(ZT_PACKET_IDX_PAYLOAD + 30);
report.architecture = (enum ZT_Architecture)at<uint16_t>(ZT_PACKET_IDX_PAYLOAD + 32);
const unsigned int receivedOnLocalAddressLen = reinterpret_cast<InetAddress *>(&(report.receivedOnLocalAddress))->deserialize(*this,ZT_PACKET_IDX_PAYLOAD + 58);
const unsigned int receivedFromRemoteAddressLen = reinterpret_cast<InetAddress *>(&(report.receivedFromRemoteAddress))->deserialize(*this,ZT_PACKET_IDX_PAYLOAD + 58 + receivedOnLocalAddressLen);
unsigned int ptr = ZT_PACKET_IDX_PAYLOAD + 58 + receivedOnLocalAddressLen + receivedFromRemoteAddressLen;
if (report.protocolVersion >= 9) {
report.receivedFromLinkQuality = at<uint16_t>(ptr); ptr += 2;
} else {
report.receivedFromLinkQuality = ZT_PATH_LINK_QUALITY_MAX;
ptr += at<uint16_t>(ptr) + 2; // this field was once an 'extended field length' reserved field, which was always set to 0
}
report.nextHopCount = (*this)[ptr++];
if (report.nextHopCount > ZT_CIRCUIT_TEST_MAX_HOP_BREADTH) // sanity check, shouldn't be possible
report.nextHopCount = ZT_CIRCUIT_TEST_MAX_HOP_BREADTH;
for(unsigned int h=0;h<report.nextHopCount;++h) {
report.nextHops[h].address = Address(field(ptr,ZT_ADDRESS_LENGTH),ZT_ADDRESS_LENGTH).toInt(); ptr += ZT_ADDRESS_LENGTH;
ptr += reinterpret_cast<InetAddress *>(&(report.nextHops[h].physicalAddress))->deserialize(*this,ptr);
}
RR->node->postCircuitTestReport(&report);
peer->received(tPtr,_path,hops(),packetId(),Packet::VERB_CIRCUIT_TEST_REPORT,0,Packet::VERB_NOP,false);
} catch ( ... ) {
TRACE("dropped CIRCUIT_TEST_REPORT from %s(%s): unexpected exception",source().toString().c_str(),_path->address().toString().c_str());
}
return true;
}
bool IncomingPacket::_doUSER_MESSAGE(const RuntimeEnvironment *RR,void *tPtr,const SharedPtr<Peer> &peer)
{
try {
@ -1453,9 +1261,9 @@ bool IncomingPacket::_doUSER_MESSAGE(const RuntimeEnvironment *RR,void *tPtr,con
um.length = size() - (ZT_PACKET_IDX_PAYLOAD + 8);
RR->node->postEvent(tPtr,ZT_EVENT_USER_MESSAGE,reinterpret_cast<const void *>(&um));
}
peer->received(tPtr,_path,hops(),packetId(),Packet::VERB_CIRCUIT_TEST_REPORT,0,Packet::VERB_NOP,false);
peer->received(tPtr,_path,hops(),packetId(),Packet::VERB_USER_MESSAGE,0,Packet::VERB_NOP,false);
} catch ( ... ) {
TRACE("dropped CIRCUIT_TEST_REPORT from %s(%s): unexpected exception",source().toString().c_str(),_path->address().toString().c_str());
TRACE("dropped USER_MESSAGE from %s(%s): unexpected exception",source().toString().c_str(),_path->address().toString().c_str());
}
return true;
}

2
node/IncomingPacket.hpp
Unescape View File

@ -138,8 +138,6 @@ private:
bool _doMULTICAST_GATHER(const RuntimeEnvironment *RR,void *tPtr,const SharedPtr<Peer> &peer);
bool _doMULTICAST_FRAME(const RuntimeEnvironment *RR,void *tPtr,const SharedPtr<Peer> &peer);
bool _doPUSH_DIRECT_PATHS(const RuntimeEnvironment *RR,void *tPtr,const SharedPtr<Peer> &peer);
bool _doCIRCUIT_TEST(const RuntimeEnvironment *RR,void *tPtr,const SharedPtr<Peer> &peer);
bool _doCIRCUIT_TEST_REPORT(const RuntimeEnvironment *RR,void *tPtr,const SharedPtr<Peer> &peer);
bool _doUSER_MESSAGE(const RuntimeEnvironment *RR,void *tPtr,const SharedPtr<Peer> &peer);
void _sendErrorNeedCredentials(const RuntimeEnvironment *RR,void *tPtr,const SharedPtr<Peer> &peer,const uint64_t nwid);

88
node/Node.cpp
Unescape View File

@ -503,64 +503,6 @@ void Node::setNetconfMaster(void *networkControllerInstance)
RR->localNetworkController->init(RR->identity,this);
}
ZT_ResultCode Node::circuitTestBegin(void *tptr,ZT_CircuitTest *test,void (*reportCallback)(ZT_Node *,ZT_CircuitTest *,const ZT_CircuitTestReport *))
{
if (test->hopCount > 0) {
try {
Packet outp(Address(),RR->identity.address(),Packet::VERB_CIRCUIT_TEST);
RR->identity.address().appendTo(outp);
outp.append((uint16_t)((test->reportAtEveryHop != 0) ? 0x03 : 0x02));
outp.append((uint64_t)test->timestamp);
outp.append((uint64_t)test->testId);
outp.append((uint16_t)0); // originator credential length, updated later
if (test->credentialNetworkId) {
outp.append((uint8_t)0x01);
outp.append((uint64_t)test->credentialNetworkId);
outp.setAt<uint16_t>(ZT_PACKET_IDX_PAYLOAD + 23,(uint16_t)9);
}
outp.append((uint16_t)0);
C25519::Signature sig(RR->identity.sign(reinterpret_cast<const char *>(outp.data()) + ZT_PACKET_IDX_PAYLOAD,outp.size() - ZT_PACKET_IDX_PAYLOAD));
outp.append((uint16_t)sig.size());
outp.append(sig.data,(unsigned int)sig.size());
outp.append((uint16_t)0); // originator doesn't need an extra credential, since it's the originator
for(unsigned int h=1;h<test->hopCount;++h) {
outp.append((uint8_t)0);
outp.append((uint8_t)(test->hops[h].breadth & 0xff));
for(unsigned int a=0;a<test->hops[h].breadth;++a)
Address(test->hops[h].addresses[a]).appendTo(outp);
}
for(unsigned int a=0;a<test->hops[0].breadth;++a) {
outp.newInitializationVector();
outp.setDestination(Address(test->hops[0].addresses[a]));
RR->sw->send(tptr,outp,true);
}
} catch ( ... ) {
return ZT_RESULT_FATAL_ERROR_INTERNAL; // probably indicates FIFO too big for packet
}
}
{
test->_internalPtr = reinterpret_cast<void *>(reportCallback);
Mutex::Lock _l(_circuitTests_m);
if (std::find(_circuitTests.begin(),_circuitTests.end(),test) == _circuitTests.end())
_circuitTests.push_back(test);
}
return ZT_RESULT_OK;
}
void Node::circuitTestEnd(ZT_CircuitTest *test)
{
Mutex::Lock _l(_circuitTests_m);
for(;;) {
std::vector< ZT_CircuitTest * >::iterator ct(std::find(_circuitTests.begin(),_circuitTests.end(),test));
if (ct == _circuitTests.end())
break;
else _circuitTests.erase(ct);
}
}
ZT_ResultCode Node::clusterInit(
unsigned int myId,
const struct sockaddr_storage *zeroTierPhysicalEndpoints,
@ -715,20 +657,6 @@ uint64_t Node::prng()
return z + y;
}
void Node::postCircuitTestReport(const ZT_CircuitTestReport *report)
{
std::vector< ZT_CircuitTest * > toNotify;
{
Mutex::Lock _l(_circuitTests_m);
for(std::vector< ZT_CircuitTest * >::iterator i(_circuitTests.begin());i!=_circuitTests.end();++i) {
if ((*i)->testId == report->testId)
toNotify.push_back(*i);
}
}
for(std::vector< ZT_CircuitTest * >::iterator i(toNotify.begin());i!=toNotify.end();++i)
(reinterpret_cast<void (*)(ZT_Node *,ZT_CircuitTest *,const ZT_CircuitTestReport *)>((*i)->_internalPtr))(reinterpret_cast<ZT_Node *>(this),*i,report);
}
void Node::setTrustedPaths(const struct sockaddr_storage *networks,const uint64_t *ids,unsigned int count)
{
RR->topology->setTrustedPaths(reinterpret_cast<const InetAddress *>(networks),ids,count);
@ -1070,22 +998,6 @@ void ZT_Node_setNetconfMaster(ZT_Node *node,void *networkControllerInstance)
} catch ( ... ) {}
}
enum ZT_ResultCode ZT_Node_circuitTestBegin(ZT_Node *node,void *tptr,ZT_CircuitTest *test,void (*reportCallback)(ZT_Node *,ZT_CircuitTest *,const ZT_CircuitTestReport *))
{
try {
return reinterpret_cast<ZeroTier::Node *>(node)->circuitTestBegin(tptr,test,reportCallback);
} catch ( ... ) {
return ZT_RESULT_FATAL_ERROR_INTERNAL;
}
}
void ZT_Node_circuitTestEnd(ZT_Node *node,ZT_CircuitTest *test)
{
try {
reinterpret_cast<ZeroTier::Node *>(node)->circuitTestEnd(test);
} catch ( ... ) {}
}
enum ZT_ResultCode ZT_Node_clusterInit(
ZT_Node *node,
unsigned int myId,

6
node/Node.hpp
Unescape View File

@ -117,8 +117,6 @@ public:
void clearLocalInterfaceAddresses();
int sendUserMessage(void *tptr,uint64_t dest,uint64_t typeId,const void *data,unsigned int len);
void setNetconfMaster(void *networkControllerInstance);
ZT_ResultCode circuitTestBegin(void *tptr,ZT_CircuitTest *test,void (*reportCallback)(ZT_Node *,ZT_CircuitTest *,const ZT_CircuitTestReport *));
void circuitTestEnd(ZT_CircuitTest *test);
ZT_ResultCode clusterInit(
unsigned int myId,
const struct sockaddr_storage *zeroTierPhysicalEndpoints,
@ -219,7 +217,6 @@ public:
inline bool externalPathLookup(void *tPtr,const Address &ztaddr,int family,InetAddress &addr) { return ( (_cb.pathLookupFunction) ? (_cb.pathLookupFunction(reinterpret_cast<ZT_Node *>(this),_uPtr,tPtr,ztaddr.toInt(),family,reinterpret_cast<struct sockaddr_storage *>(&addr)) != 0) : false ); }
uint64_t prng();
void postCircuitTestReport(const ZT_CircuitTestReport *report);
void setTrustedPaths(const struct sockaddr_storage *networks,const uint64_t *ids,unsigned int count);
World planet() const;
@ -309,9 +306,6 @@ private:
std::vector< std::pair< uint64_t, SharedPtr<Network> > > _networks;
Mutex _networks_m;
std::vector< ZT_CircuitTest * > _circuitTests;
Mutex _circuitTests_m;
std::vector<InetAddress> _directPaths;
Mutex _directPaths_m;

2
node/Packet.cpp
Unescape View File

@ -1082,8 +1082,6 @@ const char *Packet::verbString(Verb v)
case VERB_MULTICAST_GATHER: return "MULTICAST_GATHER";
case VERB_MULTICAST_FRAME: return "MULTICAST_FRAME";
case VERB_PUSH_DIRECT_PATHS: return "PUSH_DIRECT_PATHS";
case VERB_CIRCUIT_TEST: return "CIRCUIT_TEST";
case VERB_CIRCUIT_TEST_REPORT: return "CIRCUIT_TEST_REPORT";
case VERB_USER_MESSAGE: return "USER_MESSAGE";
}
return "(unknown)";

116
node/Packet.hpp
Unescape View File

@ -61,7 +61,7 @@
* 4 - 0.6.0 ... 1.0.6
* + BREAKING CHANGE: New identity format based on hashcash design
* 5 - 1.1.0 ... 1.1.5
* + Supports circuit test, proof of work, and echo
* + Supports echo
* + Supports in-band world (root server definition) updates
* + Clustering! (Though this will work with protocol v4 clients.)
* + Otherwise backward compatible with protocol v4
@ -954,119 +954,7 @@ public:
*/
VERB_PUSH_DIRECT_PATHS = 0x10,
/**
* Source-routed circuit test message:
* <[5] address of originator of circuit test>
* <[2] 16-bit flags>
* <[8] 64-bit timestamp>
* <[8] 64-bit test ID (arbitrary, set by tester)>
* <[2] 16-bit originator credential length (includes type)>
* [[1] originator credential type (for authorizing test)]
* [[...] originator credential]
* <[2] 16-bit length of additional fields>
* [[...] additional fields]
* [ ... end of signed portion of request ... ]
* <[2] 16-bit length of signature of request>
* <[...] signature of request by originator>
* <[2] 16-bit length of additional fields>
* [[...] additional fields]
* <[...] next hop(s) in path>
*
* Flags:
* 0x01 - Report back to originator at all hops
* 0x02 - Report back to originator at last hop
*
* Originator credential types:
* 0x01 - 64-bit network ID for which originator is controller
*
* Path record format:
* <[1] 8-bit flags (unused, must be zero)>
* <[1] 8-bit breadth (number of next hops)>
* <[...] one or more ZeroTier addresses of next hops>
*
* The circuit test allows a device to send a message that will traverse
* the network along a specified path, with each hop optionally reporting
* back to the tester via VERB_CIRCUIT_TEST_REPORT.
*
* Each circuit test packet includes a digital signature by the originator
* of the request, as well as a credential by which that originator claims
* authorization to perform the test. Currently this signature is ed25519,
* but in the future flags might be used to indicate an alternative
* algorithm. For example, the originator might be a network controller.
* In this case the test might be authorized if the recipient is a member
* of a network controlled by it, and if the previous hop(s) are also
* members. Each hop may include its certificate of network membership.
*
* Circuit test paths consist of a series of records. When a node receives
* an authorized circuit test, it:
*
* (1) Reports back to circuit tester as flags indicate
* (2) Reads and removes the next hop from the packet's path
* (3) Sends the packet along to next hop(s), if any.
*
* It is perfectly legal for a path to contain the same hop more than
* once. In fact, this can be a very useful test to determine if a hop
* can be reached bidirectionally and if so what that connectivity looks
* like.
*
* The breadth field in source-routed path records allows a hop to forward
* to more than one recipient, allowing the tester to specify different
* forms of graph traversal in a test.
*
* There is no hard limit to the number of hops in a test, but it is
* practically limited by the maximum size of a (possibly fragmented)
* ZeroTier packet.
*
* Support for circuit tests is optional. If they are not supported, the
* node should respond with an UNSUPPORTED_OPERATION error. If a circuit
* test request is not authorized, it may be ignored or reported as
* an INVALID_REQUEST. No OK messages are generated, but TEST_REPORT
* messages may be sent (see below).
*
* ERROR packet format:
* <[8] 64-bit timestamp (echoed from original>
* <[8] 64-bit test ID (echoed from original)>
*/
VERB_CIRCUIT_TEST = 0x11,
/**
* Circuit test hop report:
* <[8] 64-bit timestamp (echoed from original test)>
* <[8] 64-bit test ID (echoed from original test)>
* <[8] 64-bit reserved field (set to 0, currently unused)>
* <[1] 8-bit vendor ID (set to 0, currently unused)>
* <[1] 8-bit reporter protocol version>
* <[1] 8-bit reporter software major version>
* <[1] 8-bit reporter software minor version>
* <[2] 16-bit reporter software revision>
* <[2] 16-bit reporter OS/platform or 0 if not specified>
* <[2] 16-bit reporter architecture or 0 if not specified>
* <[2] 16-bit error code (set to 0, currently unused)>
* <[8] 64-bit report flags>
* <[8] 64-bit packet ID of received CIRCUIT_TEST packet>
* <[5] upstream ZeroTier address from which CIRCUIT_TEST was received>
* <[1] 8-bit packet hop count of received CIRCUIT_TEST>
* <[...] local wire address on which packet was received>
* <[...] remote wire address from which packet was received>
* <[2] 16-bit path link quality of path over which packet was received>
* <[1] 8-bit number of next hops (breadth)>
* <[...] next hop information>
*
* Next hop information record format:
* <[5] ZeroTier address of next hop>
* <[...] current best direct path address, if any, 0 if none>
*
* Report flags:
* 0x1 - Upstream peer in circuit test path allowed in path (e.g. network COM valid)
*
* Circuit test reports can be sent by hops in a circuit test to report
* back results. They should include information about the sender as well
* as about the paths to which next hops are being sent.
*
* If a test report is received and no circuit test was sent, it should be
* ignored. This message generates no OK or ERROR response.
*/
VERB_CIRCUIT_TEST_REPORT = 0x12,
// 0x11, 0x12 -- deprecated
/**
* A message with arbitrary user-definable content:

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