Bug 127553 – ncftp 3.1.7-4 sends unexpected FIN while dealing with data socket.

Bug 127553 - ncftp 3.1.7-4 sends unexpected FIN while dealing with data socket.

Summary:	ncftp 3.1.7-4 sends unexpected FIN while dealing with data socket.

Status:	CLOSED UPSTREAM

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	ncftp (Show other bugs)
Sub Component:
Version:	rawhide
Hardware:	i386 Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Karsten Hopp
QA Contact:	Ben Levenson
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:	FC3Target
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Reported:	2004-07-09 13:18 EDT by Valdis Kletnieks
Modified:	2007-11-30 17:10 EST (History)
CC List:	1 user (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2004-08-19 08:41:22 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Description Valdis Kletnieks 2004-07-09 13:18:10 EDT

Description of problem:
ncftp fails and sends a FIN when it talks to the data socket.

Version-Release number of selected component (if applicable):
3.1.7-4

How reproducible:
Connect to an FTP server, and issue 'dir' command in non-passive mode

Steps to Reproduce:
1.
2.
3.
  
Actual results:


Expected results:


Additional info:
Ethereal indicates that the PORT command is sent, the 3-packet
handshake takes place, and after the first data packet (containing
a '150 Here comes the directory listing.'), the client end sends
a FIN packet.

Backing off to 3.1.7-2 works.

Ethereal capture is available if needed.

Comment 1 Karsten Hopp 2004-07-09 14:19:28 EDT

Looks like the ipv6 patch is doing something strange here.

Comment 2 Valdis Kletnieks 2004-07-09 14:28:13 EDT

The laptop exhibiting the problem has IPv6 enabled,
but ethereal shows the connection as IPv4.  Could it be a problem
with handling a ::ffff: encapsulated address?

Comment 3 Karsten Hopp 2004-08-09 06:24:12 EDT

I've notified the uptream maintainers of the ipv6 patch of this 
problem and disabled the patch for now.

Comment 4 Karsten Hopp 2004-08-19 08:41:22 EDT

waiting for a new upstream ipv6 patch

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