[one-users] oneimage QCOW2 problem: Error copying image in the datastore: Not allowed to copy image file

Carlos Martín Sánchez cmartin at opennebula.org
Wed Sep 11 04:51:03 PDT 2013 

Hi,

On Wed, Sep 11, 2013 at 1:06 PM, Gerry O'Brien <gerry at scss.tcd.ie> wrote:

> Hi Carlos,
>
>     I appreciate the security issues. I'm just wondering why
> /var/lib/one/datastores is not a safe directory by default given it is the
> default location for datastores?
>

Oneadmin's home /var/lib/one is restricted by default, because it contains
the one_auth file, the database one.db... And /var/lib/one/datastores must
also be restricted, because a user should not be able to copy another
registered image in there. I hope this makes sense.

Cheers
--
Join us at OpenNebulaConf2013 <http://opennebulaconf.com/> in Berlin, 24-26
September, 2013
--
Carlos Martín, MSc
Project Engineer
OpenNebula - The Open-source Solution for Data Center Virtualization
www.OpenNebula.org <http://www.opennebula.org/> | cmartin at opennebula.org |
@OpenNebula <http://twitter.com/opennebula> <cmartin at opennebula.org>



>     Regards,
>         Gerry
>
>
>
> On 11/09/2013 11:51, Carlos Martín Sánchez wrote:
>
>> Hi,
>>
>> Tue Sep 10 14:32:48 2013 [ImM][E]: cp: Not allowed to copy images from
>>
>>> /var/lib/one/ /etc/one/ /var/lib/one/
>>>
>>
>> The dir /var/lib/one is a restricted dir, and OpenNebula won't allow you
>> to
>> copy images from there. Otherwise, you could copy the DB or other
>> authentication files. That's why it works from /datastores.
>>
>> See [1] for more information.
>>
>> Best regards.
>>
>> [1]
>> http://opennebula.org/**documentation:rel4.2:fs_ds#**
>> configuring_the_filesystem_**datastores<http://opennebula.org/documentation:rel4.2:fs_ds#configuring_the_filesystem_datastores>
>>
>>
>> --
>> Join us at OpenNebulaConf2013 <http://opennebulaconf.com> in Berlin,
>> 24-26
>>
>> September, 2013
>> --
>> Carlos Martín, MSc
>> Project Engineer
>> OpenNebula - The Open-source Solution for Data Center Virtualization
>> www.OpenNebula.org | cmartin at opennebula.org |
>> @OpenNebula<http://twitter.**com/opennebula<http://twitter.com/opennebula>
>> ><cmartin@**opennebula.org <cmartin at opennebula.org>>
>>
>>
>>
>> On Tue, Sep 10, 2013 at 4:59 PM, Gerry O'Brien <gerry at scss.tcd.ie> wrote:
>>
>>  Hi,
>>>
>>>      This seems to be a general issue not specific to QCOW2. For the
>>> moment
>>> I've solved the issue by mounting the datastores (which are NFS exports
>>> for
>>> a filestore) on the root partition at /datastores and created a symlink
>>> form /var/lib/one/datatstore to /datastores.
>>>
>>>       Is this correct?
>>>
>>>              Gerry
>>>
>>>
>>> On 10/09/2013 14:38, Gerry O'Brien wrote:
>>>
>>>  Hi,
>>>>
>>>>      I get the following error when trying to create an image from a
>>>> QCOW2
>>>> file:    "Error copying image in the datastore: Not allowed to copy
>>>> image
>>>> file /var/lib/one/datastores/1/****DELETEME.qcow2"
>>>>
>>>>      Below are the commands I use to create the QCOW2 file before trying
>>>> to create the image named DELETEME using oneimage. The QCOW2 file is has
>>>> been created with a backing file.
>>>>
>>>>      This used to work in Opennebula 3. I have made sure the use
>>>> oneadmin
>>>> is also in the cloud group in case it is some kind of permissions file.
>>>>
>>>>      Any ideas?
>>>>
>>>>          Regards,
>>>>              Gerry
>>>>
>>>>
>>>>
>>>> qemu-img create -f qcow2 -o backing_file=/var/lib/one/****
>>>> datastores/1/**
>>>> e1e1735dada84a7c6290001b9a244e****be /var/lib/one/datastores/1/****
>>>> DELETEME.qcow2
>>>>
>>>> qemu-img info /var/lib/one/datastores/1/****DELETEME.qcow2
>>>> image: /var/lib/one/datastores/1/****DELETEME.qcow2
>>>>
>>>> file format: qcow2
>>>> virtual size: 50G (53687091200 bytes)
>>>> disk size: 12K
>>>> cluster_size: 65536
>>>> backing file: /var/lib/one/datastores/1/****
>>>> e1e1735dada84a7c6290001b9a244e***
>>>> *be
>>>>
>>>>
>>>>
>>>> ls -la /var/lib/one/datastores/1/****DELETEME.qcow2
>>>>
>>>> -rw-r--r-- 1 oneadmin oneadmin 197632 Sep 10 13:27
>>>> /var/lib/one/datastores/1/****DELETEME.qcow2
>>>>
>>>>
>>>>   oneimage create -d default --name DELETEME  --path
>>>> /var/lib/one/datastores/1/****DELETEME.qcow2 --prefix hd --type OS
>>>>
>>>> --driver qcow2 --persistent
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Below is a similar error message when using the sunstone GUI
>>>>
>>>>
>>>> Tue Sep 10 14:32:48 2013 [ImM][I]: Copying /var/lib/one/datastores/1/**
>>>> **VlabC_1.qcow2
>>>>
>>>> to repository for image 37
>>>> Tue Sep 10 14:32:48 2013 [ReM][D]: Req:7232 UID:0 ImageAllocate result
>>>> SUCCESS, 37
>>>> Tue Sep 10 14:32:48 2013 [ReM][D]: Req:4064 UID:0 ImageInfo invoked, 37
>>>> Tue Sep 10 14:32:48 2013 [ReM][D]: Req:4064 UID:0 ImageInfo result
>>>> SUCCESS, "<IMAGE><ID>37</ID><U..."
>>>> Tue Sep 10 14:32:48 2013 [ImM][I]: Command execution fail:
>>>> /var/lib/one/remotes/****datastore/fs/cp PERTX0RSSVZFUl9BQ1RJT05fREFUQT
>>>> ****
>>>> 48SU1BR0U+****PElEPjM3PC9JRD48VUlEPjA8L1VJRD**
>>>> **48R0lEPjA8L0dJRD48VU5BTUU+**
>>>> b25lYWRtaW48L1VOQU1FPjxHTkFNRT****5vbmVhZG1pbjwvR05BTUU+**PE5BTUU+**
>>>> UUNPVzItRXhhbXBsZTwvTkFNRT48UE****VSTUlTU0lPTlM+PE9XTkVSX1U+**
>>>> MTwvT1dORVJfVT48T1dORVJfTT4xPC******9PV05FUl9NPjxPV05FUl9BPjA8L09X****
>>>> TkVSX0E+PEdST1VQX1U+****MDwvR1JPVVBfVT48R1JPVVBfTT4wPC****
>>>> 9HUk9VUF9NPjxHUk9VUF9BPjA8L0dS****T1VQX0E+PE9USEVSX1U+**
>>>> MDwvT1RIRVJfVT48T1RIRVJfTT4wPC******9PVEhFUl9NPjxPVEhFUl9BPjA8L09U**
>>>> **SEVSX0E+*
>>>> ***PC9QRVJNSVNTSU9OUz48VFlQRT4yPC****9UWVBFPjxESVNLX1RZUEU+**
>>>> MDwvRElTS19UWVBFPjxQRVJTSVNURU****5UPjE8L1BFUlNJU1RFTlQ+****
>>>> PFJFR1RJTUU+**
>>>> MTM3ODgxOTk2ODwvUkVHVElNRT48U0******9VUkNFPjwvU09VUkNFPjxQQVRIPi92****
>>>> YXIvbGliL29uZS9kYXRhc3RvcmVzLz******EvVmxhYkNfMS5xY293MjwvUEFUSD48****
>>>> RlNUWVBFPjwvRlNUWVBFPjxTSVpFPj****E8L1NJWkU+**
>>>> PFNUQVRFPjQ8L1NUQVRFPjxSVU5OSU******5HX1ZNUz4wPC9SVU5OSU5HX1ZNUz48****
>>>> Q0xPTklOR19PUFM+****MDwvQ0xPTklOR19PUFM+****PENMT05JTkdfSUQ+**
>>>> LTE8L0NMT05JTkdfSUQ+****PERBVEFTVE9SRV9JRD4xPC9EQVRBU1****RPUkVfSUQ+**
>>>> PERBVEFTVE9SRT5kZWZhdWx0PC9EQV****RBU1RPUkU+**
>>>> PFZNUz48L1ZNUz48Q0xPTkVTPjwvQ0******xPTkVTPjxURU1QTEFURT48REVWX1BS
>>>>
>>>>  RU
>>>
>>>  ZJWD48IVtDREFUQVtoZF1dPjwvREVW******X1BSRUZJWD48RFJJVkVSPjwhW0NEQV****
>>>> RBW3Fjb3cyXV0+PC9EUklWRVI+****PC9URU1QTEFURT48L0lNQUdFPjxEQV****
>>>> RBU1RPUkU+PElEPjE8L0lEPjxVSUQ+****MDwvVUlEPjxHSUQ+**
>>>> MDwvR0lEPjxVTkFNRT5vbmVhZG1pbj****wvVU5BTUU+**
>>>> PEdOQU1FPm9uZWFkbWluPC9HTkFNRT******48TkFNRT5kZWZhdWx0PC9OQU1FPjxQ****
>>>> RVJNSVNTSU9OUz48T1dORVJfVT4xPC******9PV05FUl9VPjxPV05FUl9NPjE8L09X****
>>>> TkVSX00+PE9XTkVSX0E+****MDwvT1dORVJfQT48R1JPVVBfVT4xPC****
>>>> 9HUk9VUF9VPjxHUk9VUF9NPjA8L0dS****T1VQX00+PEdST1VQX0E+**
>>>> MDwvR1JPVVBfQT48T1RIRVJfVT4xPC******9PVEhFUl9VPjxPVEhFUl9NPjA8L09U****
>>>> SEVSX00+PE9USEVSX0E+****MDwvT1RIRVJfQT48L1BFUk1JU1NJT0**
>>>> **5TPjxEU19NQUQ+**
>>>> ZnM8L0RTX01BRD48VE1fTUFEPnNoYX******JlZDwvVE1fTUFEPjxCQVNFX1BBVEg+****
>>>> L3Zhci9saWIvb25lL2RhdGFzdG9yZX******MvMTwvQkFTRV9QQVRIPjxUWVBFPjA8**
>>>> **L1RZUEU+*
>>>> ***PERJU0tfVFlQRT4wPC9ESVNLX1RZUE****U+PENMVVNURVJfSUQ+****
>>>> LTE8L0NMVVNURVJfSUQ+
>>>> **PENMVVNURVI+****PC9DTFVTVEVSPjxUT1RBTF9NQj4yMj**
>>>> **QwNzIzNjwvVE9UQUxfTUI+**
>>>> PEZSRUVfTUI+****MjIzNjQ1MzI8L0ZSRUVfTUI+****PFVTRURfTUI+**
>>>> NDI3MDc8L1VTRURfTUI+****PElNQUdFUz48SUQ+MDwvSUQ+**
>>>> PElEPjE8L0lEPjxJRD4yPC9JRD48SU****Q+MzwvSUQ+****
>>>> PElEPjQ8L0lEPjxJRD4xNjwvSUQ+*
>>>> *PElEPjIwPC9JRD48L0lNQU
>>>>
>>>>  d
>>>
>>>  FUz48VEVNUExBVEU+****PERTX01BRD48IVtDREFUQVtmc11dPj**
>>>> **wvRFNfTUFEPjxUTV9NQUQ+
>>>> **PCFbQ0RBVEFbc2hhcmVkXV0+****PC9UTV9NQUQ+PFRZUEU+**
>>>> PCFbQ0RBVEFbSU1BR0VfRFNdXT48L1****RZUEU+****
>>>> PC9URU1QTEFURT48L0RBVEFTVE9SRT****
>>>> 48L0RTX0RSSVZFUl9BQ1RJT05fREFU****QT4= 37
>>>>
>>>> Tue Sep 10 14:32:48 2013 [ImM][E]: cp: Not allowed to copy images from
>>>> /var/lib/one/ /etc/one/ /var/lib/one/
>>>> Tue Sep 10 14:32:48 2013 [ImM][E]: Not allowed to copy image file
>>>> /var/lib/one/datastores/1/****VlabC_1.qcow2
>>>>
>>>> Tue Sep 10 14:32:48 2013 [ImM][I]: ExitCode: 255
>>>> Tue Sep 10 14:32:48 2013 [ImM][E]: Error copying image in the datastore:
>>>> Not allowed to copy image file /var/lib/one/datastores/1/****
>>>> VlabC_1.qcow2
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>  --
>>> Gerry O'Brien
>>>
>>> Systems Manager
>>> School of Computer Science and Statistics
>>> Trinity College Dublin
>>> Dublin 2
>>> IRELAND
>>>
>>> 00 353 1 896 1341
>>>
>>>
>>> ______________________________****_________________
>>> Users mailing list
>>> Users at lists.opennebula.org
>>> http://lists.opennebula.org/****listinfo.cgi/users-opennebula.****org<http://lists.opennebula.org/**listinfo.cgi/users-opennebula.**org>
>>> <http://lists.opennebula.**org/listinfo.cgi/users-**opennebula.org<http://lists.opennebula.org/listinfo.cgi/users-opennebula.org>
>>> >
>>>
>>>
>
> --
> Gerry O'Brien
>
> Systems Manager
> School of Computer Science and Statistics
> Trinity College Dublin
> Dublin 2
> IRELAND
>
> 00 353 1 896 1341
>
> ______________________________**_________________
> Users mailing list
> Users at lists.opennebula.org
> http://lists.opennebula.org/**listinfo.cgi/users-opennebula.**org<http://lists.opennebula.org/listinfo.cgi/users-opennebula.org>
>
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