[SSHD-296] Support SSH_MSG_KEX_DH_GEX_REQUEST_OLD message

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.10.0
• Fix Version/s: 0.11.0
• Environment: Windows 7 64 bits; Java 1.7.0_45; PuTTY 0.63
• Assignee: Guillaume Nodet
• Reporter: Clecio Varjao
• Created: 03/Mar/14 10:10
• Updated: 14/Apr/14 11:39
• Resolved: 18/Mar/14 07:33

Description

connecting via PuTTY causes: Disconnecting: Protocol error: expected packet 34, got 30

Test Case:
https://github.com/cvarjao/jenkins-sshd/blob/master/src/test/java/org/apache/sshd/PlinkClientTest.java

note: assumes plink is in the windows PATH

02:07:11.376 [pool-2-thread-4] DEBUG o.a.s.s.s.ServerSession - Received SSH_MSG_KEXINIT
02:07:11.376 [pool-2-thread-4] INFO o.a.s.s.s.ServerSession - Kex: server->client aes128-ctr hmac-sha2-256 none
02:07:11.377 [pool-2-thread-4] INFO o.a.s.s.s.ServerSession - Kex: client->server aes128-ctr hmac-sha2-256 none
02:07:11.377 [pool-2-thread-5] DEBUG o.a.s.c.i.n.Nio2Session - Read 16 bytes
02:07:11.377 [pool-2-thread-5] TRACE o.a.s.s.s.ServerSession - Received packet #2: 1e 00 00 04 00
02:07:11.378 [pool-2-thread-5] DEBUG o.a.s.c.i.n.Nio2Session - Caught exception, now calling handler
02:07:11.381 [pool-2-thread-5] WARN o.a.s.s.s.ServerSession - Exception caught
org.apache.sshd.common.SshException: Protocol error: expected packet 34, got 30
at org.apache.sshd.server.kex.DHGEX.next(DHGEX.java:99) ~[sshd-core-0.10.0.jar:0.10.0]
at org.apache.sshd.common.session.AbstractSession.doHandleMessage(AbstractSession.java:390) ~[sshd-core-0.10.0.jar:0.10.0]
at org.apache.sshd.common.session.AbstractSession.handleMessage(AbstractSession.java:295) ~[sshd-core-0.10.0.jar:0.10.0]
at org.apache.sshd.common.session.AbstractSession.decode(AbstractSession.java:717) ~[sshd-core-0.10.0.jar:0.10.0]
at org.apache.sshd.common.session.AbstractSession.messageReceived(AbstractSession.java:277) ~[sshd-core-0.10.0.jar:0.10.0]
at org.apache.sshd.common.AbstractSessionIoHandler.messageReceived(AbstractSessionIoHandler.java:54) ~[sshd-core-0.10.0.jar:0.10.0]
at org.apache.sshd.common.io.nio2.Nio2Session$1.completed(Nio2Session.java:188) [sshd-core-0.10.0.jar:0.10.0]
at org.apache.sshd.common.io.nio2.Nio2Session$1.completed(Nio2Session.java:174) [sshd-core-0.10.0.jar:0.10.0]
at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126) [na:1.7.0_45]
at sun.nio.ch.Invoker$2.run(Invoker.java:206) [na:1.7.0_45]
at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112) [na:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_45]
at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
02:07:11.381 [pool-2-thread-5] INFO o.a.s.s.s.ServerSession - Disconnecting: Protocol error: expected packet 34, got 30