Containing vmware player 2.0.0 with SELINUX

[Louis Lam]

Hi, 

Thanks for the reply.

My conclusion is that not I'm not sure where to place the domain_auto_trans() statement. If I can't place it in the vmware.if file(since it will not be read during module compilation ) where can I put this statement? All i need to do now is to make the vmware executable run in its own domain e.g. vmware_t. But it seems more difficult than I thought. 

Can you point me to resources to how to develop modules? Can someone help me with this problem?

Thanks & Regards,
Louis

----- Original Message ----
From: Ken YANG <spng.yang at gmail.com>
To: Louis Lam <lshoujun at yahoo.com>
Cc: Daniel J Walsh <dwalsh at redhat.com>; fedora-selinux-list at redhat.com
Sent: Monday, July 30, 2007 6:53:17 AM
Subject: Re: Containing vmware player 2.0.0 with SELINUX

Louis Lam wrote:
> Hi,
> 
> I think i'm having a policy compilation problem here
> 
> I've moved the domain_auto_trans($1_t, vmware_exec_t, $1_vmware_t) statement to vmware.if. I was following the domain_auto_trans rules for other apps such as mozilla. The syntax error problem went away. 
> 
> But the problem is that the domain transition didn't take place. My vmplayer is still running in unconfined state.
> 
> I'm doing compilation of the vmware.pp module using make -f /usr/share/selinux/devel/Makefile. I've tried to purposely introduce errors into vmware.if to see if the compilation is effective:
> 
> e.g. domain_auto_trans($2, $2, $1_t, vmware_exec_t, $1_vmware_t)
> 
> But the make process didn't detect any errors and the compilation still went on. I did a diff between the vmware.pp at the /etc/selinux/targeted/modules/active/modules/vmware.pp and the development directory (where I do all my compilation), but there are no differences.
> 
> Does it mean if the vmware.if file is modified it will not affect the make? 

as i infer (i'm not sure):

the interface will not be checked, unless someone invoke it, because if
there are not invokes, the parameter can not be determined.

when you build vmware module, you will not use your own interface in
own module, so build process will not detect error.



> 
> How do you ensure that the changes at vmware.if  effective? (well at least cause some compilation errors?)
> 
> 
> 
> Thanks,
> Louis
> 
> 
> 
> 
> 
> ----- Original Message ----
> From: Ken YANG <spng.yang at gmail.com>
> To: Louis Lam <lshoujun at yahoo.com>
> Cc: Daniel J Walsh <dwalsh at redhat.com>; fedora-selinux-list at redhat.com
> Sent: Saturday, July 28, 2007 5:28:25 PM
> Subject: Re: Containing vmware player 2.0.0 with SELINUX
> 
> 
> Louis Lam wrote:
>> My mistakes, apologies for the confusion, under part 2, I was trying to do domain_auto_trans instead of doman_entry_file, so...
>>
>> 2. Created a domain transition so that the vmware user programs e.g.
>> /usr/lib/vmplayer script, /usr/lib/vmware/bin/vmplayer that are
>> labelleled system_u:object_r:vmware_exec_t will transit to
>> system_u:object_r:vmware_t when executed. I put it also in vmware.te:
>>
>> domain_auto_trans($1_t, vmware_exec_t, $1_vmware_t)
>>
>> but
>>  on making the vmware.pp module I get this warning and error:
>>
>> 'syntax error' at token '1' on line 81143:
>> #line 13
>>     allow $1_t vmware_exec_t: file {getattr read execute};
> 
> this rule is generated by domain_auto_trans, so i think the
> syntax error should be caused by other rules.
> 
> you may check other rules in your policy.
> 
>> Thanks in advance,
>> Louis
>>
>>
>> ----- Original Message ----
>> From: Louis Lam <lshoujun at yahoo.com>
>> To: Daniel J Walsh <dwalsh at redhat.com>
>> Cc: fedora-selinux-list at redhat.com
>> Sent: Friday, July 27, 2007 5:05:05 AM
>> Subject: Re: Containing vmware player 2.0.0 with SELINUX
>>
>> Thanks Daniel for the information, hi everyone
>>
>> I've tried to make the following changes:
>>
>> 1. Defined the vmware_t type in vmware.te:
>> type vmware_t;
>>
>> I need to do this since I'm trying to let the vmware user program run under vmware_t domain but this is not defined. In terms of overall code compliance is it correct to define here? or should be at the vmware.if?
> 
> type definition should be in vmware.te
> 
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