LBRYCommunity/lbrycrd
1
0
Fork 0
Code Issues 29 Pull requests 1 Projects Releases 32 Packages Wiki Activity

torcontrol: Use the default/standard network port for Tor hidden services, even if the internal port is set differently

Browse source 
Currently, the hidden service is published on the same port as the public listening port.
But if a non-standard port is configured, this can be used to guess (pretty reliably) that the public IP and the hidden service are the same node.
This commit is contained in:
Luke Dashjr 2019-03-23 05:43:49 +00:00
parent 37f236acc6
commit 8a2656702b
1 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
src/torcontrol.cpp
View file

@ -3,6 +3,7 @@
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <chainparams.h>
#include <torcontrol.h>
#include <util/strencodings.h>
#include <netbase.h>
@ -500,7 +501,7 @@ void TorController::add_onion_cb(TorControlConnection& _conn, const TorControlRe
}
return;
}
service = LookupNumeric(std::string(service_id+".onion").c_str(), GetListenPort());
service = LookupNumeric(std::string(service_id+".onion").c_str(), Params().GetDefaultPort());
LogPrintf("tor: Got service ID %s, advertising service %s\n", service_id, service.ToString());
if (WriteBinaryFile(GetPrivateKeyFile(), private_key)) {
LogPrint(BCLog::TOR, "tor: Cached service private key to %s\n", GetPrivateKeyFile().string());
@ -534,9 +535,8 @@ void TorController::auth_cb(TorControlConnection& _conn, const TorControlReply&
if (private_key.empty()) // No private key, generate one
private_key = "NEW:RSA1024"; // Explicitly request RSA1024 - see issue #9214
// Request hidden service, redirect port.
// Note that the 'virtual' port doesn't have to be the same as our internal port, but this is just a convenient
// choice. TODO; refactor the shutdown sequence some day.
_conn.Command(strprintf("ADD_ONION %s Port=%i,127.0.0.1:%i", private_key, GetListenPort(), GetListenPort()),
// Note that the 'virtual' port is always the default port to avoid decloaking nodes using other ports.
_conn.Command(strprintf("ADD_ONION %s Port=%i,127.0.0.1:%i", private_key, Params().GetDefaultPort(), GetListenPort()),
std::bind(&TorController::add_onion_cb, this, std::placeholders::_1, std::placeholders::_2));
} else {
LogPrintf("tor: Authentication failed\n");