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https://issues.apache.org/jira/browse/SSHD-930?focusedWorklogId=276773&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-276773
]
ASF GitHub Bot logged work on SSHD-930:
---------------------------------------
Author: ASF GitHub Bot
Created on: 15/Jul/19 15:13
Start Date: 15/Jul/19 15:13
Worklog Time Spent: 10m
Work Description: tomaswolf commented on pull request #105: SSHD-930 Send
the client version string after receiving the version string of the server
URL: https://github.com/apache/mina-sshd/pull/105#discussion_r303487154
##########
File path:
sshd-core/src/main/java/org/apache/sshd/client/session/ClientSessionImpl.java
##########
@@ -90,16 +88,9 @@ public ClientSessionImpl(ClientFactoryManager client,
IoSession ioSession) throw
authFuture.setAuthed(false);
signalSessionCreated(ioSession);
- sendClientIdentification();
- KexExtensionHandler extHandler = getKexExtensionHandler();
- if ((extHandler == null) ||
(!extHandler.isKexExtensionsAvailable(this, AvailabilityPhase.PREKEX))) {
- kexState.set(KexState.INIT);
- sendKexInit();
- } else {
- if (log.isDebugEnabled()) {
- log.debug("<init>({}) delay KEX-INIT until server-side one
received", this);
- }
+ if (sendImmediateIdentification) {
+ initializeKexPhase();
Review comment:
That would work.
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Issue Time Tracking
-------------------
Worklog Id: (was: 276773)
Time Spent: 50m (was: 40m)
> Send the client version string after receiving the version string of the
> server
> -------------------------------------------------------------------------------
>
> Key: SSHD-930
> URL: https://issues.apache.org/jira/browse/SSHD-930
> Project: MINA SSHD
> Issue Type: Improvement
> Affects Versions: 2.2.0
> Reporter: Zhenliang Su
> Assignee: Goldstein Lyor
> Priority: Major
> Fix For: 2.3.1
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> The rfc4253 does not indicate whether the ssh client must send its own
> version number right after receiving the version number of the server.
> I have encountered a situation where mina-sshd is used to connect to cisco's
> sshd service, sometimes it can be connected, sometimes not connected.
> Some rules are found by capturing packets. If the client sends its own
> version number after receiving the version number of the server, it can be
> connected. If the client sends its own version number before receiving the
> version number of the server, then it will not be connected.
> I think, a better way is to change the SshClient code to send the version
> number of the client right after receiving the version number of the server.
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