rsyncd broken

rsyncd broken

[Frank Fesevur]

Jari,

As I reported earlier rsync 3.1.0 is broken on cygwin.
http://www.cygwin.com/ml/cygwin/2014-06/msg00212.html
http://www.cygwin.com/ml/cygwin/2014-06/msg00442.html

Any news on that issue yet?

We run cygwin rsync daemons on our Windows servers and have a remote
Ubuntu server that backups the important data using rsnapshot. Earlier
this week I accidentally upgraded from 3.0.9 to your 3.1.0 on one of
our servers and that night the backup failed with these (client side)
error.

@ERROR: setuid failed
rsync error: error starting client-server protocol (code 5) at
main.c(1653) [Receiver=3.1.0]
ERROR: /usr/bin/rsync returned 5 while processing
rsync://192.168.202.230/backup-d/DataWeb/
@ERROR: setuid failed
rsync error: error starting client-server protocol (code 5) at
main.c(1653) [Receiver=3.1.0]
ERROR: /usr/bin/rsync returned 5 while processing
rsync://192.168.202.230/backup-d/wwwroot/

I reverted to 3.0.9 and it works as expected again.

But these error don't seem to be related to the 3.1.0 performance
issues, so do you have any idea why it fails? Could the additional
debian patch you've added cause this?

I will try a self build vanilla rsync.exe 3.1.1 this weekend or early
next week and see how that works.

Regards,
Frank

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Re: rsyncd broken

[Yaakov Selkowitz]

On 2014-08-22 07:42, Frank Fesevur wrote:
> Jari,
>
> As I reported earlier rsync 3.1.0 is broken on cygwin.
> http://www.cygwin.com/ml/cygwin/2014-06/msg00212.html
> http://www.cygwin.com/ml/cygwin/2014-06/msg00442.html
>
> Any news on that issue yet?

I have marked 3.0.9-1 as curr: and 3.1.0-1 as test: due to the issues 
reported.


Yaakov




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Re: rsyncd broken

[Marco Atzeri]

On 8/22/2014 6:17 PM, Yaakov Selkowitz wrote:
> On 2014-08-22 07:42, Frank Fesevur wrote:
>> Jari,
>>
>> As I reported earlier rsync 3.1.0 is broken on cygwin.
>> http://www.cygwin.com/ml/cygwin/2014-06/msg00212.html
>> http://www.cygwin.com/ml/cygwin/2014-06/msg00442.html
>>
>> Any news on that issue yet?
>
> I have marked 3.0.9-1 as curr: and 3.1.0-1 as test: due to the issues
> reported.
>
>
> Yaakov
>

Jary,
any news ?

Marco

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Re: rsyncd broken

[Frank Fesevur]

2014-08-22 14:42 GMT+02:00 Frank Fesevur:
> I will try a self build vanilla rsync.exe 3.1.1 this weekend or early
> next week and see how that works.

I have tried my own build 3.1.1 last night and it fails with the same
errors. I will investigate this.

Regards,
Frank

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Re: rsyncd broken

[Frank Fesevur]

2014-08-25 9:46 GMT+02:00 Frank Fesevur:
> 2014-08-22 14:42 GMT+02:00 Frank Fesevur:
>> I will try a self build vanilla rsync.exe 3.1.1 this weekend or early
>> next week and see how that works.
>
> I have tried my own build 3.1.1 last night and it fails with the same
> errors. I will investigate this.

Made a bit of progress. When I comment out the lines uid = 0 and gid =
0 from my /etc/rsyncd.conf v3.1.1. seems to work again, although I
haven't tried on our production server yet. I rather wait with that
until the weekend when there is not much to backup. I have not found
out why this behavior has changed since v3.0.9.

Another thing that surprises me is that the setuid() fails with an
errno 5, which is EIO. That error is not mentioned on this man page
http://linux.die.net/man/2/setuid What do you think? Is this setuid()
error a cygwin specific problem or should I ask upstream?

Regards,
Frank

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Re: rsyncd broken

[Corinna Vinschen]

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On Aug 28 10:22, Frank Fesevur wrote:
> 2014-08-25 9:46 GMT+02:00 Frank Fesevur:
> > 2014-08-22 14:42 GMT+02:00 Frank Fesevur:
> >> I will try a self build vanilla rsync.exe 3.1.1 this weekend or early
> >> next week and see how that works.
> >
> > I have tried my own build 3.1.1 last night and it fails with the same
> > errors. I will investigate this.
> 
> Made a bit of progress. When I comment out the lines uid = 0 and gid =
> 0 from my /etc/rsyncd.conf v3.1.1. seems to work again, although I
> haven't tried on our production server yet. I rather wait with that
> until the weekend when there is not much to backup. I have not found
> out why this behavior has changed since v3.0.9.
> 
> Another thing that surprises me is that the setuid() fails with an
> errno 5, which is EIO. That error is not mentioned on this man page
> http://linux.die.net/man/2/setuid What do you think? Is this setuid()
> error a cygwin specific problem or should I ask upstream?

That's probably a translation from Windows status or error code to POSIX
error code.  The setuid call is littered with debug output statements,
so a strace could help to understand where it comes from.  Basically
it's probably still rather an issue of missing caller permissions.


Corinna

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Corinna Vinschen                  Please, send mails regarding Cygwin to
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