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module.cpython-39.pyc
a z fv � @ s� d Z ddlZddlZzddlmZ W n eyB ddlmZ Y n0 ddlZddlZddl Z ddl Z ddl m Z dd� Z G dd � d �Zd d � ZG d d � d �ZdS )zU 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. z[^a-zA-Z0-9_\-\.]r TFN)�re�findall�len�isalpha)�modname�m� r �3/usr/lib/python3.9/site-packages/sepolgen/module.py� is_valid_name( s r c @ sN e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd d� Z ddd�Z dS )� ModuleTreec C s || _ d | _d S �N)r �dirname)�selfr r r r �__init__2 s zModuleTree.__init__c C s | j S r �r �r r r r �dir_name6 s zModuleTree.dir_namec C s | j d | j d S )N�/z.te�r r r r r r �te_name9 s zModuleTree.te_namec C s | j d | j d S )Nr z.fcr r r r r �fc_name< s zModuleTree.fc_namec C s | j d | j d S )Nr z.ifr r r r r �if_name? s zModuleTree.if_namec C s | j d | j d S )Nr �.ppr r r r r � package_nameB s zModuleTree.package_namec C s | j d S )Nz /Makefiler r r r r � makefile_nameE s zModuleTree.makefile_nameNc C s� |d | j | _t�| j� t| �� d�}|r>|�d| � n|�dt�� � |� � t| � � d�� � t| � � d�� � t| � � d�� � d S )Nr �wzinclude ) r r �os�mkdir�openr �writer �refpolicy_makefile�closer r r )r Zparent_dirnameZmakefile_include�fdr r r �createH s zModuleTree.create)N) �__name__� __module__� __qualname__r r r r r r r r& r r r r r 1 s r c C s t j�t j�| �d �d S )Nr r )r �path�splitext�split)� sourcenamer r r �modname_from_sourcenameX s r. c @ sT e Zd ZdZddd�Zdd� Zdd� Zd d � Zdd d �Zdd� Z dd� Z 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 output file object for verbose output of the compilation process. Tz/usr/bin/checkmodulez/usr/bin/semodule_package� z /usr/bin/makeN) �selinuxZis_selinux_mls_enabled�mls�module� checkmodule�semodule_package�output� last_outputr r# �refpol_makefile�make)r r6 r r r r t s zModuleCompiler.__init__c C s | j r| j �|d � || _d S )N� )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". Returns a tuple with (modname, policypackage). �.� z,invalid sourcefile name %s (must end in .te)r ���z.modr )r, r � RuntimeError�join)r r- Z splitname�basenamer � packagenamer r r � gen_filenames� s 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: %s)r9 r8 r? rC r7 )r r- r= r> r r r rH � s zModuleCompiler.refpol_buildc C sp | j g}| jr|�d� | jr(|�d� |�d� |�|� |�|� | �d�|��}|dkrltd| j ��d S )Nz-M�-m�-o� r rM )r4 r2 �appendr3 r? rD rC r7 )r r- r �sr> r r r rI � s 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 zModuleCompiler.package)N)T) r' r( r) �__doc__r r< r? rG rL rH rI rJ r r r r r/ [ s r/ )rS r Ztempfile� subprocessr � ImportErrorZcommandsr Zos.path�shutilr1 r0 r r r r. r/ r r r r �<module> s '
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