AGentooCat/i2p.i2p
1
0
Fork 0
forked from I2P_Developers/i2p.i2p
Code Issues Pull Requests Packages Projects Releases Wiki Activity

SSU2: Add checks of peer test msg 1 IP/port

Browse Source
This commit is contained in:
zzz
2022-06-24 16:56:47 -04:00
parent ac3fc6a0d8
commit 897338b790
1 changed files with 15 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
router/java/src/net/i2p/router/transport/udp/PeerTestManager.java
View File

@@ -1055,6 +1055,21 @@ class PeerTestManager {
_log.warn("Msg 1 status " + status);
return;
}
// IP/port checks
if (testIP == null ||
isIPv6 != fromPeer.isIPv6() ||
!TransportUtil.isValidPort(testPort) ||
!_transport.isValid(testIP) ||
_transport.isTooClose(testIP) ||
// exact match for IPv4, /64 for IPv6
!DataHelper.eq(fromPeer.getRemoteIP(), 0, testIP, 0, isIPv6 ? 8 : 4)) {
if (_log.shouldWarn())
_log.warn("Invalid PeerTest address: " + Addresses.toString(testIP, testPort));
UDPPacket packet = _packetBuilder2.buildPeerTestToAlice(SSU2Util.TEST_REJECT_BOB_ADDRESS,
Hash.FAKE_HASH, data, fromPeer);
_transport.send(packet);
return;
}
Hash alice = fromPeer.getRemotePeer();
RouterInfo aliceRI = _context.netDb().lookupRouterInfoLocally(alice);
if (aliceRI == null) {