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."d                 @   sD   d dl mZmZ d dlmZ d dlZddlmZ G dd deZdS )    )callCalledProcessError)mkstempN   )ConfigGeneratorc               @   s   e Zd ZdZdddhZdZddddddd	d
ddddZddddddddZddddddddddddddZdddddddddddddZ	ddddd Z
ddddd!Zed"d# Zed$d% Zed&d' Zed(d) Zd*S )+LibreswanGeneratorZ	libreswanZipsecZikez5systemctl try-restart ipsec.service 2>/dev/null || :
 Zdh19Zdh20Zdh21Zdh5Zdh14Zdh15Zdh16Zdh18)ZX448ZX25519Z	SECP256R1Z	SECP384R1Z	SECP521R1z
FFDHE-6144z
FFDHE-1536z
FFDHE-2048z
FFDHE-3072z
FFDHE-4096z
FFDHE-8192Zaes256Zaes192Zaes128Z
aes_gcm256Z
aes_gcm192Z
aes_gcm128Zchacha20_poly1305)zAES-256-CBCzAES-192-CBCzAES-128-CBCzAES-256-GCMzAES-192-GCMzAES-128-GCMzCHACHA20-POLY1305Zsha2_512Zsha2_256)zAES-256-CBC-HMAC-SHA2-512zAES-256-CBC-HMAC-SHA2-256zAES-192-CBC-HMAC-SHA2-512zAES-192-CBC-HMAC-SHA2-256zAES-128-CBC-HMAC-SHA2-256zAES-256-GCM-HMAC-SHA2-512zAES-256-GCM-HMAC-SHA2-256zAES-192-GCM-HMAC-SHA2-512zAES-192-GCM-HMAC-SHA2-256zAES-128-GCM-HMAC-SHA2-512zAES-128-GCM-HMAC-SHA2-256zCHACHA20-POLY1305-HMAC-SHA2-512zCHACHA20-POLY1305-HMAC-SHA2-256Zsha1)zAES-256-CBC-HMAC-SHA2-512zAES-192-CBC-HMAC-SHA2-512zAES-256-CBC-HMAC-SHA2-256zAES-192-CBC-HMAC-SHA2-256zAES-128-CBC-HMAC-SHA2-256zAES-256-CBC-HMAC-SHA1zAES-192-CBC-HMAC-SHA1zAES-128-CBC-HMAC-SHA1zAES-256-GCM-AEADzAES-192-GCM-AEADzAES-128-GCM-AEADzCHACHA20-POLY1305-AEADr   r         )AEADzHMAC-SHA2-512zHMAC-SHA2-256z	HMAC-SHA1)r   zHMAC-SHA2-512z	HMAC-SHA1zHMAC-SHA2-256c             C   s   || j krdS | j | S )Nc   )mac_ike_prio_map)clskey r   @./usr/share/crypto-policies/python/policygenerators/libreswan.pyZ__get_ike_priob   s    
z!LibreswanGenerator.__get_ike_prioc             C   s   || j krdS | j | S )Nr   )mac_esp_prio_map)r   r   r   r   r   Z__get_esp_prioh   s    
z!LibreswanGenerator.__get_esp_prioc             C   s  d}d}|j }d}|d }d|kr(d}nd|kr4d}|rH|d	| d
 7 }|d7 }t|d | jd}d}x|d D ]}	y| j|	 }
W n tk
r   wrY nX |
d }d}xH|D ]@}y| j|	d |  }W n tk
r   wY nX | j||d}qW |sqr||7 }d}xJ|d D ]>}y| j| }W n tk
r:   wY nX | j||d}qW | j||d}| j|||}qrW |r|d| d
 7 }t|d | jd}d}x|d D ]}	y| j|	 }
W n tk
r   wY nX |
d }d}xZ|D ]R}y| j	|	d |  }W n tk
r   wY nX |s(|
}P | j||d}qW ||7 }|dd  dkrZq| j|||}qW |r|d| d
 7 }|S )Nzconn %default
,r   ZprotocolZIKEv2zikev2=insistZIKEv1zikev2=never	
z		pfs=yes
mac)r   cipher-+groupz	ike=r   z	esp=)
Zenabledsorted!_LibreswanGenerator__get_ike_prio
cipher_mapKeyErrorcipher_prf_mapappend	group_map!_LibreswanGenerator__get_esp_priocipher_mac_map)r   ZpolicyZcfgseppsprotoZsorted_macsZtmpr   cmZcombor   Zmmir   r   r   r   generate_confign   s    





z"LibreswanGenerator.generate_configc             C   s   t jdt jsdS t \}}d}z^t j|d}|j| W d Q R X ytd| d dd}W n tk
rz   | jd Y nX W d t j	| X |r| jd	 | jd
|  dS dS )Nz/usr/sbin/ipsecT   wz'/usr/sbin/ipsec readwriteconf --config z >/dev/null)shellz!/usr/sbin/ipsec: Execution failedz/There is an error in libreswan generated policyz
Policy:
%sF)
osaccessX_OKr   fdopenwriter   r   Zeprintunlink)r   configfdpathZretfr   r   r   test_config   s&    

zLibreswanGenerator.test_configN)__name__
__module____qualname__ZCONFIG_NAMEZSCOPESZ
RELOAD_CMDr"   r   r    r$   r   r   classmethodr   r#   r+   r9   r   r   r   r   r      st   
Pr   )	
subprocessr   r   Ztempfiler   r/   Zconfiggeneratorr   r   r   r   r   r   <module>   s   