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https://issues.apache.org/jira/browse/SSHD-1077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17197677#comment-17197677
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Lyor Goldstein commented on SSHD-1077:
--------------------------------------
You have not described in this issue the exact exception you see when you ask
for version=3 and/or invoke the API with no version - only what happens for
version=6 (which was to be expected) this is crucial information,
{quote}
These are the sample servers where I'm seeing issues when connecting through
code.
{quote}
I don't know what to tell you - I cannot reproduce it - but you can easily
debug and see what is going on since it seems to happen consistently for you.
Place a breakpoint in {{DefaultSftpClient#negotiateVersion}} and run through
it. Pay specific attention to
{code:java|title=L486-489}
Map<String, ?> parsed = getParsedServerExtensions();
Collection<String> extensions = ParserUtils.supportedExtensions(parsed);
List<Integer> availableVersions = Collections.emptyList();
if ((GenericUtils.size(extensions) > 0)
&& extensions.contains(SftpConstants.EXT_VERSION_SELECT)) {
Versions vers = GenericUtils.isEmpty(parsed)
? null
: (Versions) parsed.get(SftpConstants.EXT_VERSIONS);
availableVersions = (vers == null)
? Collections.singletonList(current)
: vers.resolveAvailableVersions(current);
{code}
I am particularly interested if the server published a "version" extension and
if so what was its value
see also
{code:java|title=L503-515}
ClientSession session = getClientSession();
int selected = selector.selectVersion(session, false, current,
availableVersions);
if (debugEnabled) {
log.debug("negotiateVersion({}) current={} {} -> {}",
clientChannel, current, availableVersions, selected);
}
if (selected == current) {
return current;
}
if (!availableVersions.contains(selected)) {
throw new StreamCorruptedException(
"Selected version (" + selected + ") not part of available:
" + availableVersions);
}
{code}
I am particularly interested what are the values in {{availableVersions}} when
you ask for version=3 and/or no version at all...
{quote}Works directly from a linux box though
{quote}
Do you mean when using MINA SSHD or the Linux client ?
Have you tried connecting to the problematic servers with WinSCP ? FileZilla ?
> Getting StreamCorruptedException while creating sftp connection
> ---------------------------------------------------------------
>
> Key: SSHD-1077
> URL: https://issues.apache.org/jira/browse/SSHD-1077
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 2.5.0, 2.5.1
> Environment: Production
> Reporter: Subramaniajeeva
> Assignee: Lyor Goldstein
> Priority: Major
>
> After upgrading to latest release 2.5.1, I started seeing below error when
> connecting with sftp client:
> java.io.StreamCorruptedException: Selected version (6) not part of available:
> [3]
> at
> org.apache.sshd.client.subsystem.sftp.impl.DefaultSftpClient.negotiateVersion(DefaultSftpClient.java:522)
> ~[sshd-sftp-2.5.1.jar:2.5.1]
> at
> org.apache.sshd.client.subsystem.sftp.impl.DefaultSftpClientFactory.createSftpClient(DefaultSftpClientFactory.java:49)
> ~[sshd-sftp-2.5.1.jar:2.5.1]
> at
> org.apache.sshd.client.subsystem.sftp.SftpClientFactory.createSftpClient(SftpClientFactory.java:59)
> ~[sshd-sftp-2.5.1.jar:2.5.1]
> at
>
> There was a change done for the version selector in one of the commit around
> May:
> [https://github.com/apache/mina-sshd/commit/a8c7e3b5d3f0525cc02d258fde361e8bd58669e5]
>
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