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편집 파일: cmdline.cpython-39.opt-1.pyc
a '�Dg�$ � @ s� d dl Z d dlZd dlZd dlZd dlZd dlZd dlZd dlZd dlm Z d dl m Z m Z dZ dZe�e�ZG dd� de jd�ZG d d � d e�ZegZdd d �Zd d� Zddd�Zdd� Zdd� Zdd� Zddd�Z dS ) � N)�util)�get_devicelist�read_sys_net_safez#/run/initramfs/open-iscsi.interface�disabledc @ s8 e Zd ZdZejed�dd��Zejed�dd��Z dS )� InitramfsNetworkConfigSourcezBABC for net config sources that read config written by initramfses��returnc C s dS )zAIs this initramfs config source applicable to the current system?N� ��selfr r �9/usr/lib/python3.9/site-packages/cloudinit/net/cmdline.py� is_applicable s z*InitramfsNetworkConfigSource.is_applicablec C s dS )z;Render a v1 network config from the initramfs configurationNr r r r r � render_config" s 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�Zed�dd�Zed�dd �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 sp || _ || _|| _| j d u r$t� | _ | jd u r8t�� | _| jd u rli | _t� D ] }t|d�}|rN|| j|< qNd S )N�address)�_files� _mac_addrs�_cmdline�_get_klibc_net_cfg_filesr � get_cmdliner r )r r r r �kZmac_addrr r r �__init__/ s z!KlibcNetworkConfigSource.__init__r c C s< | j r8t�| j�D ]}|�d�r dS qtj�t�r8dS 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 A 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 T 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 r i }t �| �}z d|v r(|d n|d }W n. ty` } ztd�|�W Y d}~n d}~0 0 |�d|�d��}|s�|�d�r�d}nd }|d v r�d }|d vr�td | ��d |g d�}||v r�|| |d< dD �]}|d |vr�q�|�|d |�}|d k�rd}|dd�} |dk�r&||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) or 'static' or 'off' (LP: 2065787). Note that IPV6PROTO is also written 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 NZDEVICEZDEVICE6z&no 'DEVICE' or 'DEVICE6' entry in dataZPROTOZ IPV6PROTO�filename�dhcp�none)�staticZoff)r. r- Zdhcp6z Unexpected value for PROTO: %sZphysical)�type�name�subnets� mac_address)ZIPV4ZIPV6ZADDRr/ Zmanual)r0 Zcontrolr )ZNETMASKZ BROADCASTZGATEWAY)ZDNS0ZDNS1z:.0Zdns_nameserversZ DOMAINSEARCH�,Z dns_searchr2 ) r Zload_shell_content�KeyError� ValueError�get�lower�len�strip�appendr" )Zcontentr* �datar1 �e�protoZifaceZpreZ cur_protoZsubnet�keyZdnsZnskey�ns�searchr r r �_klibc_to_config_entry^ s` � rB 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 ]�}tt�|�|d�\}}||v r�|| d }|�d�|�d�kr�tdj|d�|| d �|�d�|�d�d���|d �|d � || d � |� q|g|d �||< |� |� q|d d �S ) N)r* �entryr3 zedevice '{name}' was defined multiple times ({files}) but had differing mac addresses: {old} -> {new}.� r) )r1 r) �old�newr2 )r) rD � )�config�version) r rB r Zload_text_filer7 r6 �format�join�extendr; )r) r* �entries�namesZcfg_filer1 rD �prevr r r r+ � s0 � �� r+ c C s( t D ] } | � }|�� sq|�� 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 )Zsrc_clsZ cfg_sourcer r r �read_initramfs_config� s rR c C s� t �| ���}d }zxz4tjd|d�}|�� W W |r8|�� W d � S tyx | Y W |rh|�� W d � S 0 W |r�|�� n|r�|�� 0 W d � n1 s�0 Y d S )N�rb)�modeZfileobj)�io�BytesIO�gzipZGzipFile�read�close�IOError)�blobZiobufZgzfpr r r � _decomp_gzip� s" � � �r\ c C s< zt �| �}W n$ ttfy2 t�d| � Y dS 0 t|�S )z�Decode a string base64 encoding, if gzipped, uncompress as well :return: decompressed unencoded string of the data or empty string on unencoded data. zaExpected base64 encoded kernel command line parameter network-config. Ignoring network-config=%s.� )�base64Z b64decode� TypeErrorr6 �LOG�errorr\ )r< r[ r r r �_b64dgz s �rb c C sj | d u rt �� } d| v rfd }| �� D ] }|�d�r$|�dd�d }q$|rf|tkrXddiS t �t|��S d S )Nznetwork-config=�=rH rI r )r r r" r# �&KERNEL_CMDLINE_NETWORK_CONFIG_DISABLEDZ load_yamlrb )ZcmdlineZdata64�tokr r r �read_kernel_cmdline_config s rf )N)NN)N) r r^ rC rW rU Zloggingr$ r! Z cloudinitr Z cloudinit.netr r r' rd Z getLoggerr r` �ABCMetar r rQ rB r r+ rR r\ rb rf r r r r �<module> s, 4 `