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Z not_allowedZneededr3 r3 r4 �common_check_passthrough� s* r> c @ s� e Zd ZdZd ZdZdd� Zdd� Zdd� Zd d � Z d d � Z d d� Z dd� Z dd� Z dd� Zdd� Zdd� Zdd� Zdd � Zd d � Zd d � Zdhd"d#�Zd$d%� Zd&d'� Zd(d)� Zd*d+� Zdid,d-�Zd.d/� Zdjd1d2�Z d3d4� Z d5d6� Z dkd8d9�Z dld:d;�Z d<d=� Z!d>d?� Z"d@dA� Z#dBdC� Z$dDdE� Z%dFdG� Z&dHdI� Z'dJdK� Z(dLdM� Z)dNdO� Z*dPdQ� Z+dmdRdS�Z,dndTdU�Z-dodVdW�Z.dXdY� Z/dpdZd[�Z0dqd\d]�Z1drd^d_�Z2dsd`da�Z3dbdc� Z4ddde� Z5dfdg� Z6d!S )t� ip4tablesr$ Tc C sd || _ tj| j | _tjd| j | _| j� | _| j� | _ | j � g | _ i | _ i | _ g | _i | _d S )Nz %s-restore)�_fwr ZCOMMANDS�ipv�_command�_restore_command�_detect_wait_option� wait_option�_detect_restore_wait_option�restore_wait_option� fill_exists�available_tables�rich_rule_priority_counts�policy_priority_counts�zone_source_index_cache� our_chains)�self�fwr3 r3 r4 �__init__� s zip4tables.__init__c C s$ t jj| j�| _t jj| j�| _d S )N)�os�path�existsrB Zcommand_existsrC Zrestore_command_exists)rN r3 r3 r4 rH � s zip4tables.fill_existsc C s� | j r(| j |kr(| j gdd� |D � }ndd� |D �}tjd| j| jdj|�� t| j|�\}}|dkr�td| jdj|�|f ��|S )Nc S s g | ] }d | �qS )z%sr3 )�.0�itemr3 r3 r4 � <listcomp>� s z#ip4tables.__run.<locals>.<listcomp>c S s g | ] }d | �qS )z%sr3 )rT rU r3 r3 r4 rV � s z %s: %s %s� r z'%s %s' failed: %s)rE r �debug2� __class__rB �joinr r8 )rN r. Z_args�status�retr3 r3 r4 Z__run� s zip4tables.__runc C s< y|j |�}W n tk r" dS X ||||d �< dS d S )NF� T)r* r8 )rN �rule�patternZ replacement�ir3 r3 r4 � _rule_replace� s zip4tables._rule_replacec C s |t ko|t | kS )N)�BUILT_IN_CHAINS)rN rA �table�chainr3 r3 r4 �is_chain_builtin� s zip4tables.is_chain_builtinc C s2 d|g}|r|j d� n |j d� |j |� |gS )Nz-tz-Nz-X)�append)rN �addrc rd r^ r3 r3 r4 �build_chain_rules� s zip4tables.build_chain_rulesc C s8 d|g}|r |d|t |�g7 }n |d|g7 }||7 }|S )Nz-tz-Iz-D)�str)rN rg rc rd r* r. r^ r3 r3 r4 � build_rule� s zip4tables.build_rulec C s t |�S )N)r5 )rN r. r3 r3 r4 � reverse_rule� s zip4tables.reverse_rulec C s t |� d S )N)r> )rN r. r3 r3 r4 �check_passthrough� s zip4tables.check_passthroughc C s t |�S )N)r: )rN r. r3 r3 r4 �reverse_passthrough� s z ip4tables.reverse_passthroughc C s� d}y|j d�}W n tk r& Y n X t|�|d krD||d }d }xLd D ]D}y|j |�}W n tk rt Y qNX t|�|d krN||d }qNW ||fS ) Nr# z-tr] �-A�--append�-I�--insert�-N� --new-chain)rn ro rp rq rr rs )r* r8 r< )rN r. rc r` rd �optr3 r3 r4 � passthrough_parse_table_chain� s$ z'ip4tables.passthrough_parse_table_chainc C s4 yH|j d�}|j|� |j|�}d|d kr:||d f}n ||d f}W nF tk r� y |j d�}|j|� d }W n tk r� d S X Y nX d}|d dkr�d }|r�| r�||kr�|j|� nn|�r0|� r�||kr�|j|� |jd d � d� |j |�}n| jj�r d}nt|�}d|d< |j dd|d � d S )Nz%%ZONE_SOURCE%%z-m� � � z%%ZONE_INTERFACE%%Tr �-D�--deleteFc S s | d S )Nr r3 )r9 r3 r3 r4 �<lambda>& s z4ip4tables._run_replace_zone_source.<locals>.<lambda>)�keyz-Ir) z%dr] )ry rz ) r* r- r8 �removerf �sortr@ �_allow_zone_driftingr< �insert)rN r^ rL r` �zoneZ zone_source�rule_addr* r3 r3 r4 �_run_replace_zone_source s> z"ip4tables._run_replace_zone_sourcec C s y|j |�}W n tk r$ Y �n�X d}d}d}|j|� |j|�}t|�tkr\ttd��d} xLdD ]D} y|j | �} W n tk r� Y qfX t|�| d krf|| d } qfW xhdD ]`} y|j | �}W n tk r� Y q�X t|�|d k� r�||d } | dk�rd}| dkr�d}q�W | | f} |�sp| |k�sP||| k�sP|| | dk�rZttd��|| | d8 < n�| |k�r�i || < ||| k�r�d|| |< d} xHt || j � �D ]4}||k�r�|�r�P | || | 7 } ||k�r�P �q�W || | d7 < d ||< |j |d d| � dS )a Change something like -t filter -I public_IN %%RICH_RULE_PRIORITY%% 123 or -t filter -A public_IN %%RICH_RULE_PRIORITY%% 321 into -t filter -I public_IN 4 or -t filter -I public_IN TFr] z%priority must be followed by a numberr# �-t�--table�-A�--append�-I�--insert�-D�--deleter z*nonexistent or underflow of priority countr) z%dN���)r� r� )r� r� r� r� r� r� )r� r� )r� r� ) r* r8 r- �typer, r r r< r �sorted�keysr� )rN r^ Zpriority_counts�tokenr` r� r� Zinsert_add_index�priorityrc rt �jrd r* �pr3 r3 r4 �_set_rule_replace_priority2 sj z$ip4tables._set_rule_replace_priorityc C sP t � }i }tj| j�}tj| j�}tj| j�}�x�|D �]�}|d d � } | j| dddt| j g� | j| dt | j g� y| j d�} W n t k r� Y n8X |dkr�q6|d$kr�d d d |g| | | d �< n | j | � | j | |d� | j | |d� | j| |� d} xZd%D ]R} y| j | �} W n t k �r, Y n(X t| �| d k�r| j | � | j | �} �qW xhtt| ��D ]X} xPtjD ]F} | | | k�rt| | jd��o�| | jd� �rtd| | | | < �qtW �qhW |j| g �j| � q6W xR|D ]J} || }|jd| � x"|D ]} |jdj| �d � �q W |jd� �q�W |j� 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||d� | j ||� | j|�}|| _ || _ || _ |S )Nz %%REJECT%%r� z --reject-withz%%ICMP%%z %%LOGTYPE%%r� r r� r� r� z-mr� z --pkt-typer] z%%RICH_RULE_PRIORITY%%z%%POLICY_PRIORITY%%)r� r� r� )ra r� rA r� r* r8 r- r� r� rJ rK rL r� r� �_ip4tables__run)rN r^ r� r` rJ rK rL �outputr3 r3 r4 �set_rule� s. zip4tables.set_ruleNc C s� g }|r|gnt j� }xx|D ]p}|| jkr6|j|� q y,| jd|ddg� | jj|� |j|� W q tk r� tjd| j|f � Y q X q W |S )Nz-tz-Lz-nzA%s table '%s' does not exist (or not enough permission to check).) rb r� rI rf r� r8 r �debug1rA )rN rc r\ Ztablesr3 r3 r4 �get_available_tables s z ip4tables.get_available_tablesc C s` d}t | jdddg�}|d dkr\d}t | jdddg�}|d dkrHd}tjd| j| j|� |S )Nr z-wz-Lz-nr z-w10z %s: %s will be using %s option.)r rB r rX rY )rN rE r\ r3 r3 r4 rD s z ip4tables._detect_wait_optionc C s� t � }|jd� |j� d}xJd D ]B}t| j|g|jd�}|d dkr"d|d kr"d |d kr"|}P q"W tjd | j| j|� t j |j� |S ) Nz#foor �-w�--wait=2)r� r zinvalid optionr] zunrecognized optionz %s: %s will be using %s option.)r� r� ) r r� 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)F)F)NN)NN)NN)NN)N)N)N)7�__name__� __module__� __qualname__rA r� Zpolicies_supportedrP rH r� ra re rh rj rk rl rm ru r� r� r� r� r� rD rF r� r� r� r� r� r� r� r� r� r� r r r r r r r r r r r r! r" r# r$ r& r( r+ r, r- r� r3 r3 r3 r4 r? � sh )Pa# ! zN 0 " & ! 1"r? c @ s& e Zd ZdZd Zddd�Zdd� ZdS ) � ip6tablesr% Fc C s� g }|j ddddddddd d g � |d krL|j ddddddddd d d dg � |j dddddddd dg � |j dddddddd dg � |S )Nz-Ir z-tr! z-mZrpfilterz--invertz --validmarkz-jr� r� r� z --log-prefixzrpfilter_DROP: z-pz ipv6-icmpz$--icmpv6-type=neighbour-solicitationr� z"--icmpv6-type=router-advertisement)rf )rN r� r� r3 r3 r4 �build_rpfilter_rules� s$ z ip6tables.build_rpfilter_rulesc C s� ddddddddd g }d }| j d j|� g }|jd d d |g� xT|D ]L}|jd d d|d|ddddg � | jjd krF|jd d d|d|ddddg � qFW |jd d dddd|g� |jd d dddd|g� |S ) Nz ::0.0.0.0/96z::ffff:0.0.0.0/96z2002:0000::/24z2002:0a00::/24z2002:7f00::/24z2002:ac10::/28z2002:c0a8::/32z2002:a9fe::/32z2002:e000::/19Z RFC3964_IPv4r# z-tz-Nz-Iz-dz-jr� z --reject-withz addr-unreachr� �allr� z --log-prefixz"RFC3964_IPv4_REJECT: "r �4r )r� r3 )rM rg rf r@ Z _log_denied)rN Z daddr_listZ chain_namer� Zdaddrr3 r3 r4 �build_rfc3964_ipv4_rules� s4 z"ip6tables.build_rfc3964_ipv4_rulesN)F)r. r/ r0 rA r� r2 r5 r3 r3 r3 r4 r1 � s r1 )+Zos.pathrQ r� Zfirewall.core.progr Zfirewall.core.loggerr Zfirewall.functionsr r r r r r r r Zfirewallr Zfirewall.errorsr r r r r Zfirewall.core.richr r r r r r r r� r� rb r� r� r5 r: r> �objectr? r1 r3 r3 r3 r4 �<module> s@ ( $ %* x
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