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check published timestamp for LeaseSet2

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orignal 2019-02-26 16:20:24 -05:00
parent ec30ec0996
commit 0646461342
3 changed files with 23 additions and 8 deletions
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10
libi2pd/LeaseSet.cpp
View file

@ -251,7 +251,7 @@ namespace data
}
LeaseSet2::LeaseSet2 (uint8_t storeType, const uint8_t * buf, size_t len, bool storeLeases):
LeaseSet (storeLeases), m_StoreType (storeType)
LeaseSet (storeLeases), m_StoreType (storeType), m_PublishedTimestamp (0)
{
SetBuffer (buf, len);
if (storeType == NETDB_STORE_TYPE_ENCRYPTED_LEASESET2)
@ -281,9 +281,9 @@ namespace data
identity = GetIdentity ();
size_t offset = identity->GetFullLen ();
if (offset + 8 >= len) return;
uint32_t timestamp = bufbe32toh (buf + offset); offset += 4; // published timestamp (seconds)
m_PublishedTimestamp = bufbe32toh (buf + offset); offset += 4; // published timestamp (seconds)
uint16_t expires = bufbe16toh (buf + offset); offset += 2; // expires (seconds)
SetExpirationTime ((timestamp + expires)*1000LL); // in milliseconds
SetExpirationTime ((m_PublishedTimestamp + expires)*1000LL); // in milliseconds
uint16_t flags = bufbe16toh (buf + offset); offset += 2; // flags
if (flags & LEASESET2_FLAG_OFFLINE_KEYS)
{
@ -427,9 +427,9 @@ namespace data
blindedVerifier->SetPublicKey (buf + offset); offset += blindedKeyLen;
// expiration
if (offset + 8 >= len) return;
uint32_t timestamp = bufbe32toh (buf + offset); offset += 4; // published timestamp (seconds)
m_PublishedTimestamp = bufbe32toh (buf + offset); offset += 4; // published timestamp (seconds)
uint16_t expires = bufbe16toh (buf + offset); offset += 2; // expires (seconds)
SetExpirationTime ((timestamp + expires)*1000LL); // in milliseconds
SetExpirationTime ((m_PublishedTimestamp + expires)*1000LL); // in milliseconds
uint16_t flags = bufbe16toh (buf + offset); offset += 2; // flags
if (flags & LEASESET2_FLAG_OFFLINE_KEYS)
{

3
libi2pd/LeaseSet.h
View file

@ -78,6 +78,7 @@ namespace data
bool operator== (const LeaseSet& other) const
{ return m_BufferLen == other.m_BufferLen && !memcmp (m_Buffer, other.m_Buffer, m_BufferLen); };
virtual uint8_t GetStoreType () const { return NETDB_STORE_TYPE_LEASESET; };
virtual uint32_t GetPublishedTimestamp () const { return 0; }; // should be set for LeaseSet2 only
virtual std::shared_ptr<const i2p::crypto::Verifier> GetTransientVerifier () const { return nullptr; };
// implements RoutingDestination
@ -133,6 +134,7 @@ namespace data
LeaseSet2 (uint8_t storeType, const uint8_t * buf, size_t len, bool storeLeases = true);
uint8_t GetStoreType () const { return m_StoreType; };
uint32_t GetPublishedTimestamp () const { return m_PublishedTimestamp; };
std::shared_ptr<const i2p::crypto::Verifier> GetTransientVerifier () const { return m_TransientVerifier; };
void Update (const uint8_t * buf, size_t len, bool verifySignature);
@ -154,6 +156,7 @@ namespace data
private:
uint8_t m_StoreType;
uint32_t m_PublishedTimestamp;
std::shared_ptr<i2p::crypto::Verifier> m_TransientVerifier;
std::shared_ptr<i2p::crypto::CryptoKeyEncryptor> m_Encryptor; // for standardLS2
};

18
libi2pd/NetDb.cpp
View file

@ -300,10 +300,22 @@ namespace data
bool NetDb::AddLeaseSet2 (const IdentHash& ident, const uint8_t * buf, int len, uint8_t storeType)
{
std::unique_lock<std::mutex> lock(m_LeaseSetsMutex);
// always new LS2 for now. TODO: implement update
auto leaseSet = std::make_shared<LeaseSet2> (storeType, buf, len, false); // we don't need leases in netdb
m_LeaseSets[ident] = leaseSet;
return true;
if (leaseSet->IsValid ())
{
auto it = m_LeaseSets.find(ident);
if (it == m_LeaseSets.end () || it->second->GetStoreType () == i2p::data::NETDB_STORE_TYPE_LEASESET ||
leaseSet->GetPublishedTimestamp () > it->second->GetPublishedTimestamp ())
{
// TODO: implement actual update
LogPrint (eLogInfo, "NetDb: LeaseSet2 updated: ", ident.ToBase32());
m_LeaseSets[ident] = leaseSet;
return true;
}
}
else
LogPrint (eLogError, "NetDb: new LeaseSet2 validation failed: ", ident.ToBase32());
return false;
}
std::shared_ptr<RouterInfo> NetDb::FindRouter (const IdentHash& ident) const