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o �Ad6$ � @ s� d dl Z d dlZd dlZd dlZd dlZd dlZd dlZd dlZd dlm Z d dl m Z m Z dZ dZG dd� de jd�ZG d d � d e�ZegZdd d �Zd d� Zddd�Zdd� Zdd� Zdd� Zddd�ZdS )� N)�util)�get_devicelist�read_sys_net_safez#/run/initramfs/open-iscsi.interface�disabledc @ s8 e Zd ZdZejdefdd��Zejdefdd��Z dS )� InitramfsNetworkConfigSourcezBABC for net config sources that read config written by initramfses�returnc C � dS )zAIs this initramfs config source applicable to the current system?N� ��selfr r �7/usr/lib/python3/dist-packages/cloudinit/net/cmdline.py� is_applicable � z*InitramfsNetworkConfigSource.is_applicablec C r )z;Render a v1 network config from the initramfs configurationNr r r r r � render_config r z*InitramfsNetworkConfigSource.render_configN) �__name__� __module__� __qualname__�__doc__�abc�abstractmethod�boolr �dictr r r r r r s r )� metaclassc @ s6 e Zd ZdZd dd�Zdefdd�Zdefdd �ZdS ) �KlibcNetworkConfigSourcez�InitramfsNetworkConfigSource for klibc initramfs (i.e. Debian/Ubuntu) Has three parameters, but they are intended to make testing simpler, _not_ for use in production code. (This is indicated by the prepended underscores.) Nc C st || _ || _|| _| j d u rt� | _ | jd u r t�� | _| jd u r6i | _t� D ]}t|d�}|r5|| j|< q'd S d S )N�address)�_files� _mac_addrs�_cmdline�_get_klibc_net_cfg_filesr � get_cmdliner r )r r r r �k�mac_addrr r r �__init__- s ��z!KlibcNetworkConfigSource.__init__r c C sF | j r!t�| j�D ]}|�d�s|�d�r dS q tj�t�r!dS dS )aD Return whether this system has klibc initramfs network config or not Will return True if: (a) klibc files exist in /run, AND (b) either: (i) ip= or ip6= are on the kernel cmdline, OR (ii) an open-iscsi interface file is present in the system zip=zip6=TF) r �shlex�splitr � startswith�os�path�exists�_OPEN_ISCSI_INTERFACE_FILE)r �itemr r r r ? s � z&KlibcNetworkConfigSource.is_applicablec C s t | j| jd�S )N)�files� mac_addrs)�config_from_klibc_net_cfgr r r r r r r R s �z&KlibcNetworkConfigSource.render_config)NNN) r r r r r" r r r r r r r r r % s r c C s� |du ri }t �| �}zd|v r|d n|d }W n ty* } ztd�|�d}~ww |�d|�d��}|s@|�d�r>d}nd }|d vrJtd | ��d |g d �}||v rZ|| |d< dD ]�}|d |vreq\|�|d |�}|d krsd}|dd�} |dkr�||d | d< dD ]} || |v r�||| | | �� < q�g } dD ]} |�|| �} | r�t| �d��r�| �||| � q�| r�| | d< |�d�}|r�d|v r�|� d�| d< n|� � | d< |d �| � q\||fS ) a� Convert a klibc written shell content file to a 'config' entry When ip= is seen on the kernel command line in debian initramfs and networking is brought up, ipconfig will populate /run/net-<name>.cfg. The files are shell style syntax, and examples are in the tests provided here. There is no good documentation on this unfortunately. DEVICE=<name> is expected/required and PROTO should indicate if this is 'none' (static) or 'dhcp' or 'dhcp6' (LP: #1621507). note that IPV6PROTO is also written by newer code to address the possibility of both ipv4 and ipv6 getting addresses. Full syntax is documented at: https://git.kernel.org/pub/scm/libs/klibc/klibc.git/plain/usr/kinit/ipconfig/README.ipconfig N�DEVICE�DEVICE6z&no 'DEVICE' or 'DEVICE6' entry in data�PROTO� IPV6PROTO�filename�dhcp�none)r4 r3 �dhcp6z Unexpected value for PROTO: %s�physical)�type�name�subnets� mac_address)�IPV4�IPV6�ADDR�static�manual)r7 �controlr )�NETMASK� BROADCAST�GATEWAY)�DNS0�DNS1z:.0�dns_nameservers� DOMAINSEARCH�,� dns_searchr9 ) r �load_shell_content�KeyError� ValueError�get�lower�len�strip�appendr$ )�contentr, �datar8 �e�proto�iface�pre� cur_proto�subnet�key�dns�nskey�ns�searchr r r �_klibc_to_config_entry\ sd �� � �� r_ c C s t � d�t � d� S )Nz/run/net-*.confz/run/net6-*.conf)�globr r r r r � s r c C s� | d u rt � } g }i }| D ]Y}tt�|�|d�\}}||v rY|| d }|�d�|�d�krFtdj|d�|| d �|�d�|�d�d���|d �|d � || d � |� q |g|d �||< |� |� q |d d �S ) N)r, �entryr: zedevice '{name}' was defined multiple times ({files}) but had differing mac addresses: {old} -> {new}.� r+ )r8 r+ �old�newr9 )r+ ra � )�config�version) r r_ r � load_filerM rL �format�join�extendrQ )r+ r, �entries�names�cfg_filer8 ra �prevr r r r- � s2 � �� r- c C s( t D ]} | � }|�� s q|�� S dS )a Return v1 network config for initramfs-configured networking (or None) This will consider each _INITRAMFS_CONFIG_SOURCES entry in turn, and return v1 network configuration for the first one that is applicable. If none are applicable, return None. N)�_INITRAMFS_CONFIG_SOURCESr r )�src_cls� cfg_sourcer r r �read_initramfs_config� s rs c C s� t �| ��@}d }z4ztjd|d�}|�� W W |r |�� W d � S ty< | Y W |r4|�� W d � S w |rD|�� w w 1 sHw Y d S )N�rb)�mode�fileobj)�io�BytesIO�gzip�GzipFile�read�close�IOError)�blob�iobuf�gzfpr r r � _decomp_gzip� s$ � � ��r� c C s: z t �| �}W t|�S ttfy t�d| � Y dS w )z�Decode a string base64 encoding, if gzipped, uncompress as well :return: decompressed unencoded string of the data or empty string on unencoded data. z`Expected base64 encoded kernel commandline parameter network-config. Ignoring network-config=%s.� )�base64� b64decode� TypeErrorrL �logging�errorr� )rS r~ r r r �_b64dgz� s ���r� c C sj | d u rt �� } d| v r3d }| �� D ]}|�d�r!|�dd�d }q|r3|tkr,ddiS t �t|��S d S )Nznetwork-config=�=re rf r )r r r$ r% �&KERNEL_CMDLINE_NETWORK_CONFIG_DISABLED� load_yamlr� )�cmdline�data64�tokr r r �read_kernel_cmdline_config s �r� )N)NN)r r� r` ry rw r� r& r# � cloudinitr � cloudinit.netr r r) r� �ABCMetar r rp r_ r r- rs r� r� r� r r r r �<module> s, 4 ]
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