On Thu, 2013-09-05 at 14:56 -0600, Daniel Drake wrote:
> Hi,
>
> I am working with a large OLPC deployment in Nicaragua performing a
> software upgrade. The previous software release included
> NetworkManager-0.9.4.0 and the new one includes
> NetworkManager-0.9.8.1.
>
> After performing the upgrade, NetworkManager does not connect to any
> of the wireless networks that it used to. The files are still there in
> /etc/NetworkManager/system-connections, but it is like they are
> ignored.
>
> Looking in the logs:
>
> keyfile: parsing FZT_Cisco_AP
> Connection failed to verify: (unknown)
> keyfile: error: invalid or missing connection property
> 'NMSettingConnection/uuid'
>
> It looks like at some point, NM has changed its UUID format, and has
> stopped accepting the old one, which is like this:
> uuid=f43bec2cdd60e5da381ebb1eb1fa39f3cc52660c
>
> Would it be possible to relax this check so that compatibility is retained?
>
> I would be happy to send in a patch that tweaks nm_utils_is_uuid()
> accordingly.
Looks like 74b6b9c768338ce3cd58d781fd837e6abbf3e209 is to blame;
previously the function didn't count the number of dashes, but now it
does. I guess I'd be fine with changing the check at the end of
nm_utils_is_uuid() to:
if ((num_dashes == 4) && (p - str == 36))
return TRUE;
/* Backwards compat for older configurations */
if ((num_dashes == 0) && (p - str == 32))
return TRUE;
return FALSE;
It also wouldn't hurt to have a testcase in
libnm-util/tests/test-general.c that creates a new NMSettingConnection
and sets the UUID to the old format and ensures that nm_setting_verify()
still works.
Dan
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