X2Go Bug report logs - #1129
x2gobroker-ssh big delay in session status recovery

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Package: x2gobroker; Maintainer for x2gobroker is X2Go Developers <x2go-dev@lists.x2go.org>; Source for x2gobroker is src:x2gobroker.

Reported by: Miguel Quero <mquero@one-esecurity.com>

Date: Tue, 20 Dec 2016 12:10:02 UTC

Severity: normal

Found in version 0.0.3.1

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To: submit@bugs.x2go.org
From: Miguel Quero <mquero@one-esecurity.com>
Subject: x2gobroker-ssh big delay in session status recovery
Message-ID: <39e399fd-41ad-bb00-0abd-7b5401bbe82f@one-esecurity.com>
Date: Tue, 20 Dec 2016 12:55:21 +0100
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[Message part 1 (text/plain, inline)]
Package: x2gobroker
Version: 0.0.3.1

When x2gobroker-ssh is used with system with not IPv6 configured, this generate very big delays in x2gobroker listsession task.

Before some research, the problem become from x2gobroker.utils portscan function.

This function propagates a delay in all agents call because it tests first the IPV6 connection:

/ip_proto = 0////try:////socket.getaddrinfo(addr, None, socket.AF_INET6)////ip_proto = 6////except socket.gaierror:////try:////socket.getaddrinfo(addr, None, socket.AF_INET)////ip_proto = 4////except socket.gaierror:////# we can't find a valid address for this host, so returning a failure...////return False /This will be fixed testing IPv4 first or more easily, setting a new option in config to select the ip protocol.

Best regards.
 


-- 
Miguel Quero | One eSecurity | www.one-esecurity.com
M: +34 608 36 17 05
Europe (Spain): +34 911 011 000
PGP: 0x34AA 050B D15C 7593 5671 3748 40C6 8E95 6C5A 40D3


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