Hello Lukas,

Sure, we will try the attached patch work and share the feedback to you/team.

Thanks for help.

Kind regards,
Roobesh G M

-----Original Message-----
From: lu...@ltri.eu <lu...@ltri.eu> 
Sent: Wednesday, December 26, 2018 6:30 PM
To: Mohandass, Roobesh <roobesh_mohand...@mcafee.com>
Cc: haproxy <haproxy@formilux.org>
Subject: Re: Send-proxy not modifying some traffic with proxy ip/port details 
instead retaining same client ip port

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Hello Roobesh,

On Wed, 26 Dec 2018 at 11:49, Mohandass, Roobesh <roobesh_mohand...@mcafee.com> 
> RGM: This is reproducible anywhere production/lab but when we see this 
> behavior is a questions as I said out of so many large number of 
> requests only for some we will observe this behavior (but can be caught very 
> quickly in less than 30mins span of time).

Thanks for clarifying.

I don't have the time to reproduce this today, but could you try the attached 
patch please?

It changes the logic around those calls, uses the getsockopt/SO_ORIGINAL_DST 
first, checks the return value and then calls getsockname(). Previously we did 
not check the return value of the getsockopt/SO_ORIGINAL_DST. My hope is that 
that call returns an error when it returns wrong data - if that's the case, the 
patch should fix the issue without sacrificing other haproxy features.

If that doesn't fix the problem we probably have to talk to the 
kernel/netfilter folks.


Attachment: 1.8-SO_ORIGINAL_DST-change.diff
Description: 1.8-SO_ORIGINAL_DST-change.diff

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