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o ;j� � @ s� d Z ddlZddlZddlZddlZddlZddlZddlZddl Zddl m Z e� e �ZdZdd� Zdd� Zd d � Zdd d �Zdd� Zdd� Zdd� Zddd�ZdS )z4 Module for viewing and modifying sysctl parameters � N)�CommandExecutionError�sysctlc C s t d dkrdS tS )z# Only run on Linux systems Zkernel�Linux)FzTThe linux_sysctl execution module cannot be loaded: only available on Linux systems.)Z __grains__�__virtualname__� r r �M/opt/saltstack/salt/lib/python3.10/site-packages/salt/modules/linux_sysctl.py� __virtual__ s r c C s& t jj�| �}|std| � d���|S )zO Utility function wrapper to error out early if a command is not found z Command 'z' cannot be found)�salt�utils�path�whichr )�cmdZ_cmdr r r �_which& s r c C s( t jj�t�rt jj�t�dkrdS dS )a� Linux hosts using systemd 207 or later ignore ``/etc/sysctl.conf`` and only load from ``/etc/sysctl.d/*.conf``. This function will do the proper checks and return a default config file which will be valid for the Minion. Hosts running systemd >= 207 will use ``/etc/sysctl.d/99-salt.conf``. CLI Example: .. code-block:: bash salt -G 'kernel:Linux' sysctl.default_config �� z/etc/sysctl.d/99-salt.confz/etc/sysctl.conf)r r ZsystemdZbooted� __context__�versionr r r r �default_config0 s �r Fc C s" i }| r`t j�| �s g S zDtjj�| ��/}|D ]$}tjj�|�� � }|� d�s;d|v r;|� dd�\}}|� � ||� � < qW d � n 1 sFw Y W |S W |S ty_ t�d� Y dS w d�td��}|dg}td |d d �}|�� D ]}|rd |vr�qw|� d d�} | d || d < qw|S )z� Return a list of sysctl parameters for this minion config: Pull the data from the system configuration file instead of the live data. CLI Example: .. code-block:: bash salt '*' sysctl.show �#�=� NzCould not open sysctl file�{}r z-azcmd.run_stdoutZtrace)Zoutput_loglevel� = r )�osr �existsr r �files�fopenZ stringutilsZto_str�strip� startswith�split�lstrip�rstrip�OSError�log�error�formatr �__salt__� splitlines) Z config_file�retZfp_�line�key�value�_sysctlr �out�compsr r r �showE s< �� �� � � r. c C s, d� td��}|d| g}td |dd�}|S )z� Return a single sysctl parameter for this minion CLI Example: .. code-block:: bash salt '*' sysctl.get net.ipv4.ip_forward r r z-nzcmd.runF�Z python_shell)r$ r r% )�namer+ r r, r r r �getn s r1 c C s t |�}| �d�dd��}d|� �}tj�|�s td| � d���i }d�td��}|d | � d |� �g}t d |d d �}|d }|d } t � dt � | �� dt � |�� d��} | � |�r`dt | �v rt|d dkrk| rk| } n|} td| � ���|�dd�\} } | || < |S )z� Assign a single sysctl parameter for this minion CLI Example: .. code-block:: bash salt '*' sysctl.assign net.ipv4.ip_forward 1 � z./z/.z /proc/sys/zsysctl z does not existr r z-wr z cmd.run_allFr/ �stdout�stderr�^z\s+=\s+�$zInvalid argument�retcoder zsysctl -w failed: r r )�str� translate� maketransr r r r r$ r r% �re�compile�escape�matchr )r0 r* Ztran_tabZ sysctl_filer' r+ r �datar, �errZregexr# �new_nameZ new_valuer r r �assign~ s( $rB c C s t �ddt| ��S )aB Replace separating whitespaces by exactly one tab. On Linux procfs, files such as /proc/sys/net/ipv4/tcp_rmem or many other sysctl with whitespace in it consistently use one tab. When setting the value, spaces or tabs can be used and will be converted to tabs by the kernel (when reading them again). z\s+� )r; �subr8 )r* r r r �_sanitize_sysctl_value� s rE c C s` |du rt � }d}tj�|�sPtj�|�}tj�|�s t�|� z tjj � |d�� }|� d� W d � n1 s9w Y W n t yO d}t |�|���w g }z#tjj � |d��}tjj�|�� �}W d � n1 sow Y W n t y� d}t |�|���w |D ]\} d| vr�|�| � q�d d � | �dd �D �} | d �d �r�|�| � q�| | d kr�t|�} t| d �| kr�tt| ��| kr�t| |� dS dS |�| � d|� d�� d}q�|�| � q�|s�|�| � d|� d�� z%tjj � |d��}|�tjj�|�� W d � n 1 �sw Y W n t �y( d}t |�|���w t| |� dS )aC Assign and persist a simple sysctl parameter for this minion. If ``config`` is not specified, a sensible default will be chosen using :mod:`sysctl.default_config <salt.modules.linux_sysctl.default_config>`. CLI Example: .. code-block:: bash salt '*' sysctl.persist net.ipv4.ip_forward 1 NFzw+z"# # Kernel sysctl configuration # z Could not write to file: {0}�rz Could not read from file: {0}r c S s g | ]}|� � �qS r )r )�.0�ir r r � <listcomp>� s zpersist.<locals>.<listcomp>r r r ZUpdatedz Already setr � T�wb)r r r �isfile�dirnamer �makedirsr r r r �writer! r r$ r? �decode� readlines�appendr r rE r1 rB � writelines�encode) r0 r* ZconfigZeditedZ sysctl_dirZ_fh�msgZnlinesZ config_datar( r- Zsanitized_valuer r r �persist� st �� � �� � ��� rV )F)N)�__doc__�loggingr r; Zsalt.utils.datar Zsalt.utils.filesZsalt.utils.pathZsalt.utils.stringutilsZsalt.utils.systemdZsalt.exceptionsr � getLogger�__name__r" r r r r r. r1 rB rE rV r r r r �<module> s( ))
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