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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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80
node/Capability.cpp
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@ -24,48 +24,48 @@ namespace ZeroTier {
int Capability::verify(const RuntimeEnvironment* RR, void* tPtr) const
{
try {
// There must be at least one entry, and sanity check for bad chain max length
if ((_maxCustodyChainLength < 1) || (_maxCustodyChainLength > ZT_MAX_CAPABILITY_CUSTODY_CHAIN_LENGTH)) {
return -1;
}
try {
// There must be at least one entry, and sanity check for bad chain max length
if ((_maxCustodyChainLength < 1) || (_maxCustodyChainLength > ZT_MAX_CAPABILITY_CUSTODY_CHAIN_LENGTH)) {
return -1;
}
// Validate all entries in chain of custody
Buffer<(sizeof(Capability) * 2)> tmp;
this->serialize(tmp, true);
for (unsigned int c = 0; c < _maxCustodyChainLength; ++c) {
if (c == 0) {
if ((! _custody[c].to) || (! _custody[c].from) || (_custody[c].from != Network::controllerFor(_nwid))) {
return -1; // the first entry must be present and from the network's controller
}
}
else {
if (! _custody[c].to) {
return 0; // all previous entries were valid, so we are valid
}
else if ((! _custody[c].from) || (_custody[c].from != _custody[c - 1].to)) {
return -1; // otherwise if we have another entry it must be from the previous holder in the chain
}
}
// Validate all entries in chain of custody
Buffer<(sizeof(Capability) * 2)> tmp;
this->serialize(tmp, true);
for (unsigned int c = 0; c < _maxCustodyChainLength; ++c) {
if (c == 0) {
if ((! _custody[c].to) || (! _custody[c].from) || (_custody[c].from != Network::controllerFor(_nwid))) {
return -1; // the first entry must be present and from the network's controller
}
}
else {
if (! _custody[c].to) {
return 0; // all previous entries were valid, so we are valid
}
else if ((! _custody[c].from) || (_custody[c].from != _custody[c - 1].to)) {
return -1; // otherwise if we have another entry it must be from the previous holder in the chain
}
}
const Identity id(RR->topology->getIdentity(tPtr, _custody[c].from));
if (id) {
if (! id.verify(tmp.data(), tmp.size(), _custody[c].signature)) {
return -1;
}
}
else {
RR->sw->requestWhois(tPtr, RR->node->now(), _custody[c].from);
return 1;
}
}
const Identity id(RR->topology->getIdentity(tPtr, _custody[c].from));
if (id) {
if (! id.verify(tmp.data(), tmp.size(), _custody[c].signature)) {
return -1;
}
}
else {
RR->sw->requestWhois(tPtr, RR->node->now(), _custody[c].from);
return 1;
}
}
// We reached max custody chain length and everything was valid
return 0;
}
catch (...) {
}
return -1;
// We reached max custody chain length and everything was valid
return 0;
}
catch (...) {
}
return -1;
}
} // namespace ZeroTier
} // namespace ZeroTier