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Adam Ierymenko 2025-07-03 12:02:18 -04:00
parent 8b77ef538a
commit 342fa9d33f
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135 changed files with 42729 additions and 42439 deletions
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134
node/SelfAwareness.cpp
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@ -35,20 +35,20 @@ namespace ZeroTier {
class _ResetWithinScope {
public:
_ResetWithinScope(void* tPtr, int64_t now, int inetAddressFamily, InetAddress::IpScope scope) : _now(now), _tPtr(tPtr), _family(inetAddressFamily), _scope(scope)
{
}
_ResetWithinScope(void* tPtr, int64_t now, int inetAddressFamily, InetAddress::IpScope scope) : _now(now), _tPtr(tPtr), _family(inetAddressFamily), _scope(scope)
{
}
inline void operator()(Topology& t, const SharedPtr<Peer>& p)
{
p->resetWithinScope(_tPtr, _scope, _family, _now);
}
inline void operator()(Topology& t, const SharedPtr<Peer>& p)
{
p->resetWithinScope(_tPtr, _scope, _family, _now);
}
private:
uint64_t _now;
void* _tPtr;
int _family;
InetAddress::IpScope _scope;
uint64_t _now;
void* _tPtr;
int _family;
InetAddress::IpScope _scope;
};
SelfAwareness::SelfAwareness(const RuntimeEnvironment* renv) : RR(renv), _phy(128)
@ -57,75 +57,75 @@ SelfAwareness::SelfAwareness(const RuntimeEnvironment* renv) : RR(renv), _phy(12
void SelfAwareness::iam(void* tPtr, const Address& reporter, const int64_t receivedOnLocalSocket, const InetAddress& reporterPhysicalAddress, const InetAddress& myPhysicalAddress, bool trusted, int64_t now)
{
const InetAddress::IpScope scope = myPhysicalAddress.ipScope();
const InetAddress::IpScope scope = myPhysicalAddress.ipScope();
if ((scope != reporterPhysicalAddress.ipScope()) || (scope == InetAddress::IP_SCOPE_NONE) || (scope == InetAddress::IP_SCOPE_LOOPBACK) || (scope == InetAddress::IP_SCOPE_MULTICAST)) {
return;
}
if ((scope != reporterPhysicalAddress.ipScope()) || (scope == InetAddress::IP_SCOPE_NONE) || (scope == InetAddress::IP_SCOPE_LOOPBACK) || (scope == InetAddress::IP_SCOPE_MULTICAST)) {
return;
}
Mutex::Lock _l(_phy_m);
PhySurfaceEntry& entry = _phy[PhySurfaceKey(reporter, receivedOnLocalSocket, reporterPhysicalAddress, scope)];
Mutex::Lock _l(_phy_m);
PhySurfaceEntry& entry = _phy[PhySurfaceKey(reporter, receivedOnLocalSocket, reporterPhysicalAddress, scope)];
if ((trusted) && ((now - entry.ts) < ZT_SELFAWARENESS_ENTRY_TIMEOUT) && (! entry.mySurface.ipsEqual(myPhysicalAddress))) {
// Changes to external surface reported by trusted peers causes path reset in this scope
RR->t->resettingPathsInScope(tPtr, reporter, reporterPhysicalAddress, myPhysicalAddress, scope);
if ((trusted) && ((now - entry.ts) < ZT_SELFAWARENESS_ENTRY_TIMEOUT) && (! entry.mySurface.ipsEqual(myPhysicalAddress))) {
// Changes to external surface reported by trusted peers causes path reset in this scope
RR->t->resettingPathsInScope(tPtr, reporter, reporterPhysicalAddress, myPhysicalAddress, scope);
entry.mySurface = myPhysicalAddress;
entry.ts = now;
entry.trusted = trusted;
entry.mySurface = myPhysicalAddress;
entry.ts = now;
entry.trusted = trusted;
// Erase all entries in this scope that were not reported from this remote address to prevent 'thrashing'
// due to multiple reports of endpoint change.
// Don't use 'entry' after this since hash table gets modified.
{
Hashtable<PhySurfaceKey, PhySurfaceEntry>::Iterator i(_phy);
PhySurfaceKey* k = (PhySurfaceKey*)0;
PhySurfaceEntry* e = (PhySurfaceEntry*)0;
while (i.next(k, e)) {
if ((k->reporterPhysicalAddress != reporterPhysicalAddress) && (k->scope == scope)) {
_phy.erase(*k);
}
}
}
// Erase all entries in this scope that were not reported from this remote address to prevent 'thrashing'
// due to multiple reports of endpoint change.
// Don't use 'entry' after this since hash table gets modified.
{
Hashtable<PhySurfaceKey, PhySurfaceEntry>::Iterator i(_phy);
PhySurfaceKey* k = (PhySurfaceKey*)0;
PhySurfaceEntry* e = (PhySurfaceEntry*)0;
while (i.next(k, e)) {
if ((k->reporterPhysicalAddress != reporterPhysicalAddress) && (k->scope == scope)) {
_phy.erase(*k);
}
}
}
// Reset all paths within this scope and address family
_ResetWithinScope rset(tPtr, now, myPhysicalAddress.ss_family, (InetAddress::IpScope)scope);
RR->topology->eachPeer<_ResetWithinScope&>(rset);
}
else {
// Otherwise just update DB to use to determine external surface info
entry.mySurface = myPhysicalAddress;
entry.ts = now;
entry.trusted = trusted;
}
// Reset all paths within this scope and address family
_ResetWithinScope rset(tPtr, now, myPhysicalAddress.ss_family, (InetAddress::IpScope)scope);
RR->topology->eachPeer<_ResetWithinScope&>(rset);
}
else {
// Otherwise just update DB to use to determine external surface info
entry.mySurface = myPhysicalAddress;
entry.ts = now;
entry.trusted = trusted;
}
}
std::vector<InetAddress> SelfAwareness::whoami()
{
std::vector<InetAddress> surfaceAddresses;
Mutex::Lock _l(_phy_m);
Hashtable<PhySurfaceKey, PhySurfaceEntry>::Iterator i(_phy);
PhySurfaceKey* k = (PhySurfaceKey*)0;
PhySurfaceEntry* e = (PhySurfaceEntry*)0;
while (i.next(k, e)) {
if (std::find(surfaceAddresses.begin(), surfaceAddresses.end(), e->mySurface) == surfaceAddresses.end()) {
surfaceAddresses.push_back(e->mySurface);
}
}
return surfaceAddresses;
std::vector<InetAddress> surfaceAddresses;
Mutex::Lock _l(_phy_m);
Hashtable<PhySurfaceKey, PhySurfaceEntry>::Iterator i(_phy);
PhySurfaceKey* k = (PhySurfaceKey*)0;
PhySurfaceEntry* e = (PhySurfaceEntry*)0;
while (i.next(k, e)) {
if (std::find(surfaceAddresses.begin(), surfaceAddresses.end(), e->mySurface) == surfaceAddresses.end()) {
surfaceAddresses.push_back(e->mySurface);
}
}
return surfaceAddresses;
}
void SelfAwareness::clean(int64_t now)
{
Mutex::Lock _l(_phy_m);
Hashtable<PhySurfaceKey, PhySurfaceEntry>::Iterator i(_phy);
PhySurfaceKey* k = (PhySurfaceKey*)0;
PhySurfaceEntry* e = (PhySurfaceEntry*)0;
while (i.next(k, e)) {
if ((now - e->ts) >= ZT_SELFAWARENESS_ENTRY_TIMEOUT) {
_phy.erase(*k);
}
}
Mutex::Lock _l(_phy_m);
Hashtable<PhySurfaceKey, PhySurfaceEntry>::Iterator i(_phy);
PhySurfaceKey* k = (PhySurfaceKey*)0;
PhySurfaceEntry* e = (PhySurfaceEntry*)0;
while (i.next(k, e)) {
if ((now - e->ts) >= ZT_SELFAWARENESS_ENTRY_TIMEOUT) {
_phy.erase(*k);
}
}
}
} // namespace ZeroTier
} // namespace ZeroTier