Edit File: fw.cpython-36.pyc
3 Y e�� � @ s� d gZ ddlZddlZddlZddlZddlZddlmZ ddlm Z ddl m Z ddl m Z ddl m Z ddl mZ dd l mZ dd lmZ dd lmZ dd lmZ dd lmZ ddlmZ ddlmZ ddl m Z ddl m Z ddl m!Z! ddl"m#Z# ddl$m%Z%m&Z& ddl'm(Z( ddl)m*Z* ddl+m,Z, ddl-m.Z. ddl/m0Z0 ddl1m2Z2m3Z3 ddl4m5Z5 dd l6m7Z7 dd l8m9Z9 dd l:m;Z; dd lm<Z< dd l=m>Z> G d!d � d e?�Z@dS )"�Firewall� N)�config)� functions)� ipXtables)�ebtables)�nftables)�ipset)�modules)�FirewallIcmpType)�FirewallService)� FirewallZone)�FirewallDirect)�FirewallConfig)�FirewallPolicies)� FirewallIPSet)�FirewallTransaction)�FirewallHelper)�FirewallPolicy)�nm_get_bus_name�nm_get_interfaces_in_zone)�log)�firewalld_conf)�Direct)�service_reader)�icmptype_reader)� zone_reader�Zone)� ipset_reader)� IPSET_TYPES)� helper_reader)� policy_reader)�errors)� FirewallErrorc @ s� e Zd Zdadd�Zdd� Zdd� Zdd � Zd d � Zdbd d �Zdd� Z dcdd�Z dd� Z dd� Z dd� Z dd� Zdd� Zd d � Zd d � Zd d!� Zd"d#� Zd$d%� Zd&d'� Zddd)d*�Zded+d,�Zdfd-d.�Zdgd/d0�Zd1d2� Zd3d4� Zd5d6� Z d7d8� Z d9d:� Z d;d<� Z d=d>� Z d?d@� Z!dAdB� Z"dCdD� Z#dEdF� Z$dGdH� Z%dIdJ� Z&dhdKdL�Z'dMdN� Z(dOdP� Z)dQdR� Z*dSdT� Z+dUdV� Z,dWdX� Z-dYdZ� Z.d[d\� Z/d]d^� Z0d_d`� Z1d(S )ir Fc C s t tj�| _|| _| jr>d| _d| _d| _d| _t | _ d| _ nrt j | �| _d| _g | _t j| �| _d| _g | _tj� | _d| _tj� | _d| _g | _ tj| �| _d| _ tj� | _t| �| _ t | �| _ t | �| _ t!| �| _"t#| �| _t$� | _%t&| �| _t'| �| _(t)| �| _*| j+� d S )NFT),r r �FIREWALLD_CONF�_firewalld_conf�_offline�ip4tables_enabled�ip6tables_enabled�ebtables_enabled� ipset_enabledr �ipset_supported_types�nftables_enabledr � ip4tables�ip4tables_backend�ipv4_supported_icmp_types� ip6tables�ip6tables_backend�ipv6_supported_icmp_typesr �ebtables_backendr � ipset_backendr �nftables_backendr �modules_backendr �icmptyper �servicer �zoner �directr r �policiesr r �helperr �policy�_Firewall__init_vars)�selfZoffline� r? �/usr/lib/python3.6/fw.py�__init__C sB zFirewall.__init__c C sD d| j | j| j| j| j| j| j| j| j| j | j | j | j | j | jf S )Nz:%s(%r, %r, %r, %r, %r, %r, %r, %r, %r, %r, %r, %r, %r, %r))� __class__r& r' r( �_state�_panic� _default_zone�_module_refcount�_marks�cleanup_on_exit�cleanup_modules_on_exit�ipv6_rpfilter_enabledr) �_individual_calls� _log_denied)r> r? r? r@ �__repr__k s zFirewall.__repr__c C sj d| _ d| _d| _i | _g | _tj| _tj| _ tj | _ tj | _ tj| _tj| _tj| _tj| _tj| _d S )NZINITF� )rC rD rE rF rG r ZFALLBACK_CLEANUP_ON_EXITrH Z FALLBACK_CLEANUP_MODULES_ON_EXITrI ZFALLBACK_IPV6_RPFILTERrJ ZFALLBACK_INDIVIDUAL_CALLSrK ZFALLBACK_LOG_DENIEDrL ZFALLBACK_FIREWALL_BACKEND�_firewall_backendZ FALLBACK_FLUSH_ALL_ON_RELOAD�_flush_all_on_reloadZFALLBACK_RFC3964_IPV4� _rfc3964_ipv4Z FALLBACK_ALLOW_ZONE_DRIFTING�_allow_zone_drifting)r> r? r? r@ Z __init_varst s zFirewall.__init_varsc C s� | j r$d| jj� kr$tjd� d| _ | jrHd| jj� krHtjd� d| _| jrld| jj� krltjd� d| _| j r�| j r�| j r�tj d� t j d� d S )N�filterziptables is not usable.Fzip6tables is not usable.zebtables is not usable.zNo IPv4 and IPv6 firewall.� ) r& r- �get_available_tablesr �info1r' r0 r( r2 r+ �fatal�sys�exit)r> r? r? r@ � _check_tables� s zFirewall._check_tablesc C sz y| j j� W n* tk r8 tjd� d| _g | _Y nX | j j� | _| jj � | jj s|| jj rltjd� ntjd� d| _ | j r�| jjd�| _n| j r�| jj� | _ng | _| jj � | jj s�| jj r�tjd� ntjd� d| _| j r�| jjd�| _n | j�r| jj� | _ng | _| jj � | jj �sN| jj �r>tjd � ntjd � d| _| j�rv| j �rv| jj �rvtjd � d S ) Nz4ipset not usable, disabling ipset usage in firewall.FzFiptables-restore is missing, using individual calls for IPv4 firewall.zCiptables-restore and iptables are missing, disabling IPv4 firewall.�ipv4zGip6tables-restore is missing, using individual calls for IPv6 firewall.zEip6tables-restore and ip6tables are missing, disabling IPv6 firewall.�ipv6zHebtables-restore is missing, using individual calls for bridge firewall.zEebtables-restore and ebtables are missing, disabling bridge firewall.zSebtables-restore is not supporting the --noflush option, will therefore not be used)r3 Zset_list� ValueErrorr �warningr) r* Zset_supported_typesr- Z fill_exists�restore_command_existsZcommand_existsr& r+ r4 Zsupported_icmp_typesr. r0 r' r1 r2 r( rK �restore_noflush_option�debug1)r> r? r? r@ � _start_check� sL zFirewall._start_checkc > C s~ t j}tjdt j� y| jj� W n8 tk rZ } ztj|� tjd� W Y d d }~X �n"X | jj d�rt| jj d�}| jj d�r�| jj d�}|d k r�|j � dBkr�d| _ tjd| j � | jj d ��r| jj d �}|d k r�|j � dCkr�d | _ |d k �r|j � dDk�rd| _ tjd | j � | jj d��rv| jj d�}|d k �rv|j � dEk�rvtjd� y| j j� W n tk �rt Y nX | jj d��r�| jj d�}|d k �r�|j � dFk�r�d| _|j � dGk�r�d | _| j�r�tjd� n tjd� | jj d��r"| jj d�}|d k �r"|j � dHk�r"tjd� d | _| jj d��rt| jj d�}|d k�sT|j � dk�r\d| _n|j � | _tjd| j� | jj d��r�| jj d�| _tjd| j� | jj d��r�| jj d�}|j � dIk�r�d| _nd | _tjd| j� | jj d ��r&| jj d �}|j � dJk�rd| _nd | _tjd | j� | jj d ��r|| jj d �}|j � dKk�rVd| _nd | _| j�sntjd � tjd | j� | j jtj| j�� | j| j� | j�s�| j � tjd!� y| j j j� W nZ tk �r } z<| j j � �r�tj d"| j j j |� ntjd"| j j j |� W Y d d }~X nX | j j!tj| j �� | j"t j#d#� | j"t j$d#� | j"t j%d$� | j"t j&d$� t'| j(j)� �d%k�r�tj d&� | j"t j*d'� | j"t j+d'� | j"t j,d(� | j"t j-d(� t'| j.j/� �d%k�r�tj d)� | j"t j0d*� | j"t j1d*� t'| j2j3� �d%k�r&tj4d+� t5j6d,� | j"t j7d-� | j"t j8d-� d}x.dLD ]&}|| j2j3� k�rLtj4d1|� d }�qLW |�r�t5j6d,� || j2j3� k�r�d2| j2j3� k�r�d2}nd3| j2j3� k�r�d3}nd.}tj d4||� |}n tjd5|� t9t j:�} t;j<j=t j:��rRtjd6t j: � y | j� W n4 tk �rP } ztj d7t j:|� W Y d d }~X nX | j>j?| � | j j@tj| �� | jA|�| _B| j�r�d S | jC� tjD� d%k�r�tEjE� } tF| �} | jG| d8� |�r�|�s�| jH�r�| jIjJ� �r�| jKd � | jL� |�r |�r tjd9� | jMjN� | jO| d8� | jKd � | jL� | jH�rR| jIjJ� �rRtjd:� | jIjP� tjd;� | jQ| d8� tjd<� | j2jR| d8� | j2jSd | jB| d8� tjd=� | jTjU| d8� | jKd � | jL� | j>jV� �rPtjd>� | j>jW| � y| jKd � | jL� W nX tk �r8 } z$t| jXd?| jY�r | jYnd@ ��W Y d d } ~ X n tk �rN � Y nX ~ tjD� d,k�rztEjE� } tjZdA| | � d S )MNz"Loading firewalld config file '%s'z0Using fallback firewalld configuration settings.� DefaultZoneZ CleanupOnExit�no�falseFz CleanupOnExit is set to '%s'ZCleanupModulesOnExit�yes�trueTz#CleanupModulesOnExit is set to '%s'ZLockdownzLockdown is enabledZ IPv6_rpfilterzIPv6 rpfilter is enabledzIPV6 rpfilter is disabledZIndividualCallszIndividualCalls is enabled� LogDeniedZoffzLogDenied is set to '%s'ZFirewallBackendz FirewallBackend is set to '%s'ZFlushAllOnReloadz FlushAllOnReload is set to '%s'Z RFC3964_IPv4zRFC3964_IPv4 is set to '%s'ZAllowZoneDriftingz�AllowZoneDrifting is enabled. 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Z UNKNOWN_ERROR)r> r� r� r? r? r@ �get_backend_by_name� s z Firewall.get_backend_by_namec C s\ | j r | jS |dkr | jr | jS |dkr4| jr4| jS |dkrH| jrH| jS tt j d| ��d S )Nr[ r\ �ebz-'%s' is not a valid backend or is unavailable) r+ r4 r& r- r' r0 r( r2 r" r! � INVALID_IPV)r> �ipvr? r? r@ �get_backend_by_ipv� s zFirewall.get_backend_by_ipvc C sP |dkr| j r| jS |dkr(| jr(| jS |dkr<| jr<| jS ttjd| ��d S )Nr[ r\ r� z-'%s' is not a valid backend or is unavailable) r& r- r' r0 r( r2 r" r! r� )r> r� r? r? r@ �get_direct_backend_by_ipv� s z"Firewall.get_direct_backend_by_ipvc C s< |dkr| j S |dkr | jS |dkr*| jS |dkr8| jS dS )Nr, r/ r r F)r& r' r( r+ )r> r� r? r? r@ �is_backend_enabled� s zFirewall.is_backend_enabledc C s8 | j r dS |dkr| jS |dkr&| jS |dkr4| jS dS )NTr[ r\ r� F)r+ r& r' r( )r> r� r? r? r@ �is_ipv_enabled� s zFirewall.is_ipv_enabledc C sR g }| j r|j| j� n6| jr*|j| j� | jr<|j| j� | jrN|j| j� |S )N) r+ �appendr4 r& r- r' r0 r( r2 )r> �backendsr? r? r@ �enabled_backends s zFirewall.enabled_backendsc C sP g }| j r|j| j� | jr(|j| j� | jr:|j| j� | jrL|j| j� |S )N) r& r� r- r' r0 r( r2 r+ r4 )r> r� r? r? r@ r� s zFirewall.all_backendsNc C sN |d krt | �}n|}x | j� D ]}|j||j� � q W |d krJ|jd� d S )NT)r r� � add_rulesZbuild_default_tablesr� )r> rl r� r� r? r? r@ r� # s z Firewall.apply_default_tablesc C s� |d krt | �}n|}x(| j� D ] }|j| j�}|j||� q W | jd�r~| jd�}d|j� kr~| jr~|j | j�}|j||� | jd�r�| j r�|j � }|j||� |d kr�|j d� d S )Nr\ �rawT) r r� Zbuild_default_rulesrL r� r� r� rU rJ Zbuild_rpfilter_rulesrQ Zbuild_rfc3964_ipv4_rulesr� )r> rl r� r� �rulesZ ipv6_backendr? r? r@ r� / s" z Firewall.apply_default_rulesc C s\ |d krt | �}n|}tjd� x$| j� D ]}|j� }|j||� q*W |d krX|jd� d S )NzFlushing rule setT)r r ra r� Zbuild_flush_rulesr� r� )r> rl r� r� r� r? r? r@ r� I s zFirewall.flushc C s` |d krt | �}n|}tjd|� x&| j� D ]}|j|�}|j||� q,W |d kr\|jd� d S )NzSetting policy to '%s'T)r r ra r� Zbuild_set_policy_rulesr� r� )r> r< rl r� r� r� r? r? r@ r� X s zFirewall.set_policyc C sB |sdS | j |�}|s&ttjd| ��| j|�s4dS |j|| j�S )NrN z'%s' is not a valid backend)r� r" r! r� r� �set_rulerL )r> � backend_name�ruler� r? r? r@ r� i s z Firewall.rulec C s" t td |��}| j|�}|s,ttjd| ��| j|�s:d S | js\|j s\|dkoX| j j �rx�t |�D ]�\}}y|j || j � W qf tk �r } zjtjtj� � tj|� xFt|d |� �D ]2}y|j |j|�| j � W q� tk r� Y q�X q�W |�W Y d d }~X qfX qfW n|j|| j � d S )Nz'%s' is not a valid backendr )�listrS r� r" r! r� r� rK r_ r2 r` r� r� rL rn r ra � traceback� format_excrt �reversedZ reverse_ruleZ set_rules)r> r� r� Z_rulesr� r� r� r� r? r? r@ r� w s. zFirewall.rulesc C s | j rttj��d S )N)rD r" r! Z PANIC_MODE)r> r? r? r@ � check_panic� s zFirewall.check_panicc C s" |}|| j j� kr ttj|��|S )N)r< r� r" r! ZINVALID_POLICY)r> r< Z_policyr? r? r@ � check_policy� s zFirewall.check_policyc C s8 |}| s|dkr| j � }|| jj� kr4ttj|��|S )NrN )�get_default_zoner8 rz r" r! Z INVALID_ZONE)r> r8 �_zoner? r? r@ r~ � s zFirewall.check_zonec C s t j|�sttj|��d S )N)r ZcheckInterfacer" r! ZINVALID_INTERFACE)r> � interfacer? r? r@ �check_interface� s zFirewall.check_interfacec C s | j j|� d S )N)r7 � check_service)r> r7 r? r? r@ r� � s zFirewall.check_servicec C s t j|�sttj|��d S )N)r � check_portr" r! Z INVALID_PORT)r> Zportr? r? r@ r� � s zFirewall.check_portc C s* |st tj��|dkr&t tjd| ��d S )N�tcp�udp�sctp�dccpz''%s' not in {'tcp'|'udp'|'sctp'|'dccp'})r� r� r� r� )r" r! 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