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Utilities for dealing with the compilation of modules and creation
of module tress.
� N)�getstatusoutput� )�defaultsc C s0 t �d| �}t|�dkr(| d �� r(dS dS dS )z'Check that a module name is valid.
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dd� Z dS )�ModuleCompileras ModuleCompiler eases running of the module compiler.
The ModuleCompiler class encapsulates running the commandline
module compiler (checkmodule) and module packager (semodule_package).
You are likely interested in the create_module_package method.
Several options are controlled via parameters (only effects the
non-refpol builds):
.mls [boolean] Generate an MLS module (by passed -M to
checkmodule). True to generate an MLS module, false
otherwise.
.module [boolean] Generate a module instead of a base module.
True to generate a module, false to generate a base.
.checkmodule [string] Fully qualified path to the module compiler.
Default is /usr/bin/checkmodule.
.semodule_package [string] Fully qualified path to the module
packager. Defaults to /usr/bin/semodule_package.
.output [file object] File object used to write verbose
output of the compililation and packaging process.
Nc C s< t �� | _d| _d| _d| _|| _d| _t� � | _
d| _ dS )z�Create a ModuleCompiler instance, optionally with an
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)r6 r" r7 )r �strr r r �o� s zModuleCompiler.oc C s$ | � |� t|�\}}| � |� |S r )r< r )r �command�rcr6 r r r �run� s
zModuleCompiler.runc C sJ |� d�}t|�dk r td|��d�|dd� �}|d }|d }||fS )z�Generate the module and policy package filenames from
a source file name. The source file must be in the form
of "foo.te". This will generate "foo.mod" and "foo.pp".
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�.� z,invalid sourcefile name %s (must end in .te)r ���z.modr )r, r � RuntimeError�join)r r- Z splitname�basenamer � packagenamer r r �
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z ModuleCompiler.gen_filenamesTc C sD |r| � |� n0| �|�\}}| �||� | �||� t�|� dS )a� Create a module package saved in a packagename from a
sourcename.
The create_module_package creates a module package saved in a
file named sourcename (.pp is the standard extension) from a
source file (.te is the standard extension). The source file
should contain SELinux policy statements appropriate for a
base or non-base module (depending on the setting of .module).
Only file names are accepted, not open file objects or
descriptors because the command line SELinux tools are used.
On error a RuntimeError will be raised with a descriptive
error message.
N)� refpol_buildrG �compile�packager �unlink)r r- Z refpolicyr rF r r r �create_module_package� s z$ModuleCompiler.create_module_packagec C s4 | j d | j }| �|�}|dkr0td| j ��d S )Nz -f r �compilation failed:
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zModuleCompiler.compilec C sZ | j g}|�d� |�|� |�d� |�|� | �d�|��}|dkrVtd| j ��d S )NrO rN rP r zpackaging failed [%s])r5 rQ r? rD rC r7 )r r rF rR r> r r r rJ � s
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