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pass encrepted LeaseSet auth keys

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orignal 2019-07-16 16:31:17 -04:00
parent 54071b0e5d
commit 97d9795fc9
4 changed files with 77 additions and 24 deletions
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65
libi2pd/Destination.cpp
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@ -846,7 +846,7 @@ namespace client
ClientDestination::ClientDestination (const i2p::data::PrivateKeys& keys, bool isPublic, const std::map<std::string, std::string> * params):
LeaseSetDestination (isPublic, params), m_Keys (keys), m_StreamingAckDelay (DEFAULT_INITIAL_ACK_DELAY),
m_DatagramDestination (nullptr), m_RefCounter (0),
m_ReadyChecker(GetService())
m_ReadyChecker(GetService()), m_AuthType (i2p::data::ENCRYPTED_LEASESET_AUTH_TYPE_NONE)
{
if (keys.IsOfflineSignature () && GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_LEASESET)
SetLeaseSetType (i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2); // offline keys can be published with LS2 only
@ -868,12 +868,46 @@ namespace client
if (isPublic)
LogPrint (eLogInfo, "Destination: Local address ", GetIdentHash().ToBase32 (), " created");
// extract streaming params
if (params)
try
{
if (params)
{
// extract streaming params
auto it = params->find (I2CP_PARAM_STREAMING_INITIAL_ACK_DELAY);
if (it != params->end ())
m_StreamingAckDelay = std::stoi(it->second);
if (GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2)
{
// authentication for encrypted LeaseSet
it = params->find (I2CP_PARAM_LEASESET_AUTH_TYPE);
m_AuthType = std::stoi (it->second);
if (m_AuthType > 0)
{
m_AuthKeys = std::make_shared<std::vector<i2p::data::AuthPublicKey> >();
if (m_AuthType == i2p::data::ENCRYPTED_LEASESET_AUTH_TYPE_DH)
ReadAuthKey (I2CP_PARAM_LEASESET_CLIENT_DH, params);
else if (m_AuthType == i2p::data::ENCRYPTED_LEASESET_AUTH_TYPE_PSK)
ReadAuthKey (I2CP_PARAM_LEASESET_CLIENT_PSK, params);
else
{
LogPrint (eLogError, "Destination: Unexpected auth type ", m_AuthType);
m_AuthType = 0;
}
if (m_AuthKeys->size ())
LogPrint (eLogInfo, "Destination: ", m_AuthKeys->size (), " auth keys read");
else
{
LogPrint (eLogError, "Destination: No auth keys read for auth type ", m_AuthType);
m_AuthKeys = nullptr;
}
}
}
}
}
catch (std::exception & ex)
{
auto it = params->find (I2CP_PARAM_STREAMING_INITIAL_ACK_DELAY);
if (it != params->end ())
m_StreamingAckDelay = std::stoi(it->second);
LogPrint(eLogError, "Destination: unable to parse parameters for destination: ", ex.what());
}
}
@ -1149,7 +1183,7 @@ namespace client
auto ls2 = std::make_shared<i2p::data::LocalLeaseSet2> (i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2,
m_Keys, m_EncryptionKeyType, keyLen, m_EncryptionPublicKey, tunnels, IsPublic ());
if (GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2) // encrypt if type 5
ls2 = std::make_shared<i2p::data::LocalEncryptedLeaseSet2> (ls2, m_Keys);
ls2 = std::make_shared<i2p::data::LocalEncryptedLeaseSet2> (ls2, m_Keys, m_AuthType, m_AuthKeys);
leaseSet = ls2;
}
SetLeaseSet (leaseSet);
@ -1168,5 +1202,22 @@ namespace client
LogPrint (eLogError, "Destinations: decryptor is not set");
return false;
}
void ClientDestination::ReadAuthKey (const std::string& group, const std::map<std::string, std::string> * params)
{
for (auto it: *params)
if (it.first.length () >= group.length () && !it.first.compare (0, group.length (), group))
{
auto pos = it.second.find (':');
if (pos != std::string::npos)
{
i2p::data::AuthPublicKey pubKey;
if (pubKey.FromBase64 (it.second.substr (pos+1)))
m_AuthKeys->push_back (pubKey);
else
LogPrint (eLogError, "Destination: Unexpected auth key ", it.second.substr (pos+1));
}
}
}
}
}