✏️ 编辑：permmap.cpython-39.opt-1.pyc
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/usr/lib64/python3.9/site-packages/setools/__pycache__/permmap.cpython-39.opt-1.pyc
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Zsetoolsz{0}/setools/perm_mapN) �loggingZ getLoggerr �logr �_permmap�load� pkg_resourcesZget_distributionr& �location)r5 r? Zdistro�pathr r r r6 _ s zPermissionMap.__init__r7 c C s | j S r8 )� _permmapfile�r5 r r r �__str__p s zPermissionMap.__str__c C s8 t �t �}| j|_t�| j�|_| j|_||t| �< |S r8 )r> �__new__rB �copy�deepcopyrC rH �id)r5 �memoZnewobjr r r � __deepcopy__s s zPermissionMap.__deepcopy__c c s( | � � D ]}| �|�D ] }|V qqd S r8 )�classes�perms)r5 �cls�mappingr r r �__iter__{ s zPermissionMap.__iter__c C sv | j �d�|�� t|d���}d}d}d}d}| j�� t|dd�D �]�\}}|�� } t| �dksF| d d dkrvqF|dkr�zt | d �}W n> t y� } z&t � d�||| d ��| �W Y d} ~ n d} ~ 0 0 |dk r�t � d �||| d ���d }qF|d k�r�t| �d k�s| d d k�r.t � d �||| ���t | d �} zt | d �} W n@ t �y� } z&t � d�||| d ��| �W Y d} ~ n d} ~ 0 0 | dk �r�t � d�||| d ���|d7 }||k�r�t � d�||| ���t� | j| < d} d }qF|d krFt | d �}t | d �}|tv�r,t � d�||| d ���zt | d �}W n@ t �y| } z&t � d�||| d ��| �W Y d} ~ n d} ~ 0 0 t| k�r�tk�s�n t � d�||| d tt���| j �d�| |||�� |dk�r�| j �d�| |�� t| j| |dd�}||_||_|d7 }| d7 } | | krFd }qFW d � n1 �s<0 Y || _| j �d�|�� | j �d�||�� dS )r@ z Opening permission map "{0}"r r r )�start�#z&{0}:{1}:Invalid number of classes: {2}Nz/{0}:{1}:Number of classes must be positive: {2}� � �classz&{0}:{1}:Invalid class declaration: {2}z*{0}:{1}:Invalid number of permissions: {2}z3{0}:{1}:Number of permissions must be positive: {2}z {0}:{1}:Extra class found: {2}z/{0}:{1}:Invalid information flow direction: {2}z&{0}:{1}:Invalid permission weight: {2}z.{0}:{1}:Permission weight must be {3}-{4}: {2}zRead {0}:{1} {2} {3}r z Permission {0}:{1} is unmapped.T�r2 z(Successfully opened permission map "{0}"z+Read {0} classes and {1} total permissions.)rB �infor& �openrC �clear� enumerate�split�lenr r% r ZPermissionMapParseErrorr< r r) r# r$ �debugr+ r( r! rH )r5 r? �mapfileZ total_permsZ class_countZ num_classes�stateZline_num�line�entry�ex� class_nameZ num_permsZ perm_count� perm_nameZflow_directionr! rT r r r rD � s� ��� �� �� ��� �� �� �� ��� �� � �& �zPermissionMap.loadc C s� t |d���}| j�d�|�� |�d�t| j��� | j�� D ]�\}}|�d�|t|��� |�� D ]T\}}tt |d �}tt |d �}|dkr�| j� d�||�� |�d �|||�� qd|�d � q>| j�d �|�� W d � n1 s�0 Y d S ) z� Save the permission map to the specified path. Existing files will be overwritten. Parameter: permmapfile The path to write the permission map. r z Writing permission map to "{0}"z{0} zclass {0} {1} r( r! r z1Warning: permission {0} in class {1} is unmapped.z{0:>20} {1:>9} {2:>9} � z*Successfully wrote permission map to "{0}"N) r] rB r\ r& r ra rC �itemsr r< r Zwarning) r5 r? rc r0 rR ZpermnameZsettingsr( r! r r r �save� s � zPermissionMap.savec c s | j �� E dH dS )zw Generate class names in the permission map. Yield: class An object class name. N)rC �keysrI r r r rQ s zPermissionMap.classes)r- r" c c sd z(| j | �� D ]}t| j ||�V qW n6 ty^ } z t�d�|��|�W Y d}~n d}~0 0 dS )z� Generate permission mappings for the specified class. Parameter: class_ An object class name. Yield: Mapping A permission's complete map (weight, direction, enabled) r3 N)rC rm r+ �KeyErrorr r4 r& )r5 r- r. rg r r r rR s zPermissionMap.perms)r- r. r" c C s t | j||�S )z)Retrieve a specific permission's mapping.)r+ rC �r5 r- r. r r r rT / s zPermissionMap.mappingc C s | � |�D ] }d|_q dS )a Exclude all permissions in an object class for calculating rule weights. Parameter: class_ The object class to exclude. Exceptions: UnmappedClass The specified object class is not mapped. FN�rR r, ro r r r � exclude_class3 s zPermissionMap.exclude_class)r- r1 r" c C s dt | j||�_dS )a� Exclude a permission for calculating rule weights. Parameter: class_ The object class of the permission. permission The permission name to exclude. Exceptions: UnmappedClass The specified object class is not mapped. UnmappedPermission The specified permission is not mapped for the object class. FN�r+ rC r, �r5 r- r1 r r r �exclude_permission@ s z PermissionMap.exclude_permissionc C s | � |�D ] }d|_q dS )a Include all permissions in an object class for calculating rule weights. Parameter: class_ The object class to include. Exceptions: UnmappedClass The specified object class is not mapped. TNrp ro r r r � include_classN s zPermissionMap.include_classc C s dt | j||�_dS )a� Include a permission for calculating rule weights. Parameter: class_ The object class of the permission. permission The permission name to include. Exceptions: UnmappedClass The specified object class is not mapped. UnmappedPermission The specified permission is not mapped for the object class. TNrr rs r r r �include_permission\ s z PermissionMap.include_permission)�policyr" c C s� |� � D ]�}t|�}|| jvr>| j�d�||�� t� | j|< |j}tt j �� ||j jO }W d � n1 sp0 Y |D ]:}|| j| vr~| j�d�|||�� t | j||dd� q~qdS )zHCreate mappings for all classes and permissions in the specified policy.z"Adding unmapped class {0} from {1}Nz.Adding unmapped permission {0} in {1} from {2}Tr[ ) rQ r< rC rB rb r& r rR r r ZNoCommon�commonr+ )r5 rw r- rh rR ri r r r � map_policyk s * �zPermissionMap.map_policy)�ruler" c C s� d}d}t |j�}|jtjkr0t�d�|j���|jD ]l}t | j ||�}|j sPq6|j dkrht ||j�}q6|j dkr�t ||j�}q6|j dkr6t ||j�}t ||j�}q6t||�S )aT Get the type enforcement rule's information flow read and write weights. Parameter: rule A type enforcement rule. Return: Tuple(read_weight, write_weight) read_weight The type enforcement rule's read weight. write_weight The type enforcement rule's write weight. r z1{0} rules cannot be used for calculating a weightr r r )r< ZtclassZruletyper Zallowr Z RuleTypeErrorr& rR r+ rC r, r( �maxr! r )r5 rz Z write_weightZ read_weightrh ri rT r r r � rule_weight s& � zPermissionMap.rule_weight)r- r1 r( r" c C s |t | j||�_dS )a� Set the information flow direction of a permission. Parameter: class_ The object class of the permission. permission The permission name. direction The information flow direction the permission (r/w/b/n). Exceptions: UnmappedClass The specified object class is not mapped. UnmappedPermission The specified permission is not mapped for the object class. N)r+ rC r( )r5 r- r1 r( r r r � set_direction� s zPermissionMap.set_direction)r- r1 r! r" c C s |t | j||�_dS )a� Set the weight of a permission. Parameter: class_ The object class of the permission. permission The permission name. weight The weight of the permission (1-10). Exceptions: UnmappedClass The specified object class is not mapped. UnmappedPermission The specified permission is not mapped for the object class. N)r+ rC r! )r5 r- r1 r! r r r � set_weight� s zPermissionMap.set_weight)N) r r r r r r< r6 rJ rP r r+ rU rD rl rQ rR rT rq rt ru rv r ry r r r| r} r r~ r r r r r> [ s$ q% 'r> )"rA rL � collectionsr � contextlibr �typingr r r r r r rE � r Z descriptorsr Z policyrepr r r r) r# r$ r r r' r< r* r; r= r+ r> r r r r �<module> s" &(
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