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Code Editor : util.cpython-310.pyc
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Use no netmask for IP addresses. If netmask is specified and not all 1's, for IPv4 use cidr if possible, otherwise dotted netmask and for IPv6, use cidr. Fr7 r6 r r �128�32z255.255.255.255r r TzUsing '%s' for address '%s'zInvalid address '%s')r r0 r) r �appendr r1 �_dotted_netmask_to_cidrr � inet_ntopr( �_address4_to_network�debugr9 r ) �origr5 r- �changedr8 �s_typer, �network�dbg_msgr r r �normalize_address� sN � � rF c C � t | d�S )z"Opens the specified file read-only�r)�open)�fnr r r �open_file_read� � rK c C s> t | �}zt� \}}W n ty |�� � w || ||d�S )z=Opens the specified file read-only and a tempfile read-write.)rA �orignamer �tmpname)rK r r �close)rJ rA r rN r r r � open_files� s �rP c C s� |dkrdS | st tjd��tr | tj�� kr t�|� dS d}tjd dkr1t �| t |d��}nt �| |�}|dkrAt tj d��dS ) z~Write to the file descriptor and error out of 0 bytes written. Intended to be used with open_files() and close_files().r NzNot a valid file descriptor���r � �asciiz"Could not write to file descriptor) �OSError�errno�ENOENT� msg_output�sys�stdout�fileno�write� version_info�os�bytes�EIO)�fd�out�rcr r r � write_to_file� s �rc Tc C sX | d � � t� | d � |r#t�| d | d � t�| d | d � t�| d � dS )zuCloses the specified files (as returned by open_files), and update original file with the temporary file. rA r rM rN N)rO r] �shutil�copystat�copy�unlink)�fns�updater r r � close_files s rj c C sn t | � z tj| tjtjdd�}W n ty) } z dt|�gW Y d}~S d}~ww |�� d }|jt|�gS )z!Try to execute the given command.T)rY �stderr�universal_newlines� Nr ) r@ � subprocess�Popen�PIPE�STDOUTrT �str� communicate� returncode)�command�sp�exra r r r �cmd s ��� rx c C sp zt j| t jd�}t j||jd�}W n ty* } z dt|�gW Y d}~S d}~ww |�� d }|jt|�gS )z#Try to pipe command1 into command2.)rY )�stdinrm Nr )rn ro rp rY rT rr rs rt )�command1�command2�sp1�sp2rw ra r r r �cmd_pipe$ s �� r~ c C s� z| j }W n ty | }Y nw z|�dd�}W n ty$ |}Y nw tr3t�tj�r3|�|� n|�t |�� | � � dS )zQImplement our own print statement that will output utf-8 when appropriate.�utf-8�ignoreN) �bufferr �encoderW �inspect�isclass�io�StringIOr[ r^ �flush)�output�s�writerra r r r �_print2 s � � r� c C s> z t tjd| � W n ty Y nw |r t�d� dS dS )z Print error message and exitz ERROR: %s r N)r� rX rk �IOError�exit)ra �do_exitr r r �errorG s ��r� c C s, z t tjd| � W dS ty Y dS w )zPrint warning messagez WARN: %s N)r� rX rk r� �ra r r r r% R s �r% c C sT t r |tjkr t }z|rt|d| � W dS t|d| � W dS ty) Y dS w )z Print messagez%s z%sN)rW rX rY r� r� )ra r� �newliner r r �msgZ s �r� c C s4 t rz ttjd| � W dS ty Y dS w dS )zPrint debug messagez DEBUG: %s N)� DEBUGGINGr� rX rk r� r� r r r r@ h s ��r@ c C s t |fdd�| �d��S )z� A word-wrap function that preserves existing line breaks and most spaces in the text. Expects that existing line breaks are posix newlines ( ). c S s< d| dt | �| �d� d t |�dd�d � |k |f S )Nz%s%s%sz � r r )r �rfindr )�line�word�widthr r r �<lambda>w s ����zword_wrap.<locals>.<lambda>� )r r )�textr� r r r � word_wrapq s �r� c C rG )z Word wrap to a specific width�K )r� )r� r r r � wrap_text� rL r� c s dd� � | j � fdd�d� dS )a$ Sorts list of strings into numeric order, with text case-insensitive. Modifies list in place. Eg: [ '80', 'a222', 'a32', 'a2', 'b1', '443', 'telnet', '3', 'http', 'ZZZ'] sorts to: ['3', '80', '443', 'a2', 'a32', 'a222', 'b1', 'http', 'telnet', 'ZZZ'] c S s | � � rt| �S | �� S �N)�isdigit�int�lower)�tr r r r� � s z human_sort.<locals>.<lambda>c s � fdd�t �d| �D �S )Nc s g | ]}� |��qS r r )�.0�c��normr r � <listcomp>� s z0human_sort.<locals>.<lambda>.<locals>.<listcomp>z([0-9]+))r& r )�kr� r r r� � s )�keyN)�sort)�lstr r� r � human_sort� s r� c C s| zt | �}W n ty td��w tj�dt|�d�}tj�|�s(td| ��t |�� � d � dd�d � � d }t |�S )zdFinds parent process id for pid based on /proc/<pid>/stat. See 'man 5 proc' for details. zpid must be an integer�/proc�stat�Couldn't find '%s'r �)r ) r� r r r] �path�joinrr �isfiler� rI � readlines�rsplitr )�mypid�pid�name�ppidr r r �get_ppid� s � $r� c C s� zt | �}W n$ ty td�}t|� Y dS ty* td�t| � }t|��w | dks3|dkr5dS tj� dt|�d�}tj� |�sOtd�| }t|��zt |�� � d � � d }W n tyn td �| }t|��w td | � |d kr{d S t|�S ) z1Determine if current process is running under sshz%Couldn't find pid (is /proc mounted?)Fz!Couldn't find parent pid for '%s'r r� r� r� r z"Could not find executable for '%s'zunder_ssh: exe is '%s'z(sshd)T)r� r� r r% r rr r r] r� r� r� rI r� r r@ � under_ssh)r� r� �warn_msgr! r� �exer r r r� � s4 � � r� c C s8 d}|rd}t �d| �rt| �dk st| �|krdS dS )zVerifies cidr netmasks� � �^[0-9]+$r FT)r& r' r� )r4 r5 �numr r r r* � s $r* c C sd |rdS t �d| �r0t �d| �}t|�dkrdS |D ]}|r*t|�dk s*t|�dkr- dS qdS dS )z.Verifies dotted quad ip addresses and netmasksFz^[0-9]+\.[0-9\.]+$z\.� r � T)r& r' r r r� )r4 r5 �quads�qr r r r1 � s ��r1 c C s� d}|rt �t| |�s t �d}ztt�dt�| ��d �}W n ty4 tt�dt�| ��d �}Y nw d}t d�D ]}||? d@ dkrHd}q;|rNd} n|d7 }q;|dkra|dkrat d| �}t ||�sht �|S ) z@Convert netmask to cidr. IPv6 dotted netmasks are not supported.r r �>LFr� r TrQ ) r r1 �long�struct�unpackr � inet_aton� NameErrorr� �rangerr r* )r4 r5 �cidr�mbits�bits� found_one�nr r r r= � s0 � r= c C s� d}|rt �t| |�s t �ztd�}W n ty d}Y nw td�D ]}|t| �k r3|dd| > O }q#t�t� d|��}t ||�sDt �|S )z<Convert cidr to netmask. IPv6 dotted netmasks not supported.r r r� r r/ r� ) r r* r� r� r� r� r � inet_ntoar� �packr1 )r� r5 r4 r� r� r r r �_cidr_to_dotted_netmask$ s$ � � r� c C s d| vr t d� | S | �d�}t|�dks t|d d�s t�|d }|d }|}t|d�r2t|d�}z tt� dt � |��d �}tt� dt � |��d �}W n# t yq t t� dt � |��d �}t t� dt � |��d �}Y nw ||@ }t �t�d|��}d||f S ) z8Convert an IPv4 address and netmask to a network addressr z8_address4_to_network: skipping address without a netmaskr r Fr r� �%s/%s)r@ r r r1 r r* r� r� r� r� r r� r� r� r� r� ) r, r �host�orig_nmr4 � host_bits�nm_bits� network_bitsrD r r r r? A s* � r? c C s� dd� }d| vrt d� | S | �d�}t|�dks t|d d�s"t�|d }|d }t�d t�tj |��}zt d�}W n t yF d}Y nw t d �D ]"}||| d �}t d �D ]} |dt || �@ d | |d > O }qXqKzt d�} W n t y d} Y nw t d �D ]}|t |�k r�| dd | > O } q�|| @ } g } t d �D ]}| �t || d �|d |d d � d�� q�t�tj t�d | d | d | d | d | d | d | d | d � �} d| |f S )z8Convert an IPv6 address and netmask to a network addressc s$ d� � fdd�t|d dd�D ��S )zDecimal to binaryr c s g | ] }t � |? d @ ��qS )r )rr )r� �y�r� r r r� h � z9_address6_to_network.<locals>.dec2bin.<locals>.<listcomp>r rQ )r� r� )r� �countr r� r �dec2binf s $z%_address6_to_network.<locals>.dec2binr z8_address6_to_network: skipping address without a netmaskr r Tr z>8H� � rm r� rR r� � � � r� )r@ r r r2 r r� r� r r( r) r� r� r� r� r< r> r� )r, r� r � orig_host�netmask�unpackedr� �ir� �jr� r- r� rD r r r �_address6_to_networkd sT � � &� � � ,�� r� c C s^ |� d�}t|�dkst|d |�st�|d }|d }|dks$|dkr&dS | }d|v rD|� d�}t|�dks>t|d |�s@t�|d }|dksL|dkrNdS |r[t|�rXt|�sZt�n t|�rct|�set�t||�rq|sqt||�}|r�td||f �� d�d }td||f �� d�d }||kS t d||f �� d�d }t d||f �� d�d }||kS ) z&Determine if address x is in network yr r r r z0.0.0.0z::Tr� ) r r r2 r r. r3 r* r� r� r? ) � tested_add� tested_netr5 r r� r� �address� orig_networkrD r r r � in_network� s\ � ���������r� c C sH d} dD ]}t j�|d�} t j�| �r nd} q| dkr"ttjd��| S )Nr )z/sbinz/binz /usr/sbinz/usr/binz/usr/local/sbinz/usr/local/bin�iptableszCould not find iptables)r] r� r� �existsrT rU rV )r� �dr r r �_find_system_iptables� s r� c C sT | du rt � } t| dg�\}}|dkrttjd| ��t�d|�}t�dd|d �S ) zReturn iptables versionNz-Vr zError running '%s'z\sz^vr r )r� rx rT rU rV r& r �sub)r� rb ra r r r r �get_iptables_version� s r� c C s� dd� }|rt �� dkrttjd��| du rt� } g }d}| �d�r$d}|td d d �7 }t| d |g�\}}|dkr?ttj |��|| |g d ��rL|� d � || |g d��rY|� d� t| d|g� t| d|g�\}}|dkrsttj |��|S )z[Return capabilities set for netfilter to support new features. Callers must be root.c S s* | d|g}t || �\}}|dkrdS dS )Nz-Ar TF)rx )r� �chain�rule�argsrb ra r r r �test_cap� s z,get_netfilter_capabilities.<locals>.test_capr z Must be rootNz ufw-caps-test� ip6tableszufw6-caps-testr )�prefix�dirz-N)�-m� conntrack� --ctstate�NEWr� �recentz--setz recent-set) r� r� r r r� r z--updatez --seconds�30z --hitcountr6 z recent-updatez-Fz-X) r] �getuidrT rU �EPERMr� �endswithr rx rV r< )r� � do_checksr� �capsr� rb ra r r r �get_netfilter_capabilities� s, r c C s t | �}t� }|�� D ]}|�d�s|�d�sq |�� }|d }|d �d�d }t� }d�|d �d�dd� �|d< |d |d < |d �d �d |d < |d dkrZ|d |d< n |d �d �d |d< ||vrut� ||< g || |< n ||| vr�g || |< || | �|� q |S )z:Get and parse netstat the output from get_netstat_output()r r r r �:rQ N�laddrrR �uidr� r r� �-r� )�get_netstat_output�dict� splitlines� startswithr r� r< )r5 �netstat_outputr� r� r r r �itemr r r �parse_netstat_output' s, r c s$ d}|r[d}t j�|�sttjd| ��t|��� D ]5}|�� � | � d krOd� � fdd�t dt � d �d �D ��}� d � � d krOd |t � d � � d �f }q|dkrZttjd��n0t�tjtj�}zt�t�|�� dt�d| dd� ��dd� �}W n ty� ttjd��w t||�d S )z Get IP address for interfacer �/proc/net/if_inet6�'%s' does not existr� r c � g | ] }� d ||d � �qS �r r� r �r� r� �r r r r� [ � z"get_ip_from_if.<locals>.<listcomp>r r� r �80r� r� �No such devicei� �256sN� � � )r] r� r� rT rU rV rI r� r r� r� r r� r� r� �ENODEVr r0 � SOCK_DGRAMr� �fcntl�ioctlrZ r� r� r rF )�ifnamer5 r, �procr� r� r r r �get_ip_from_ifM s8 �� �� � �r( c sZ d}d}t | �r d}d}n t| �sttjd��tj�|�s%ttj d| ��d}|rzt |�� � D ]H}|� � � � d � � }d �� fd d �td t� d �d �D ��}� d �� dkrdd|t� d �� d�f }| |ksrd|v rwt| |d�rw|} |S q/|S t |�� � D ]*}d |vr�q�|� d �d � � }zt|d�}W n ty� Y q�w || kr�|} |S q�|S )z Get interface for IP addressFz /proc/net/devTr r r r r� r c r r r r r r r r� � r z"get_if_from_ip.<locals>.<listcomp>r r� r r r� r� r )r. r3 r� rU r" r] r� r� rT rV rI r� r �stripr� r� r r� r� r� r( )r, r5 r' �matchedr� r& �tmp_addr�ipr r r �get_if_from_ipm sR �� � ��r- c C s t �d�} | �� t�d�}t� }| D ]n}|�|�sqt j�d|d�}t � |t j t j B �s.qd}z t � t j�d|d��}W n t yF Y nw zt �|�}W n t yW Y qw |D ]&}zt �t j�||��d }W n t ys Y qZw d|t j�|�f ||< qZq|S )z Get inodes of files in /procr� r� r` r r� r r� )r] �listdirr� r& �compiler r' r� r� �access�F_OK�R_OK�readlinkr r� �basename) � proc_files�pat�inodesr� �fd_path�exe_path�dirsr� �inoder r r �_get_proc_inodes� s< � � ��r< c C s ddddddddd d d d � }d dddd�}t j�d| �}t �|t jt jB �s(t�g }d}t|��� }|D ]L}|� � }|s?d}q4|t ||d d� } | � d�rRd} n | � d�r\| d kr\q4||d � d�\} } ||d } ||d } |� | t | d�| | | f� q4|S ) z=Read /proc/net/(tcp|udp)[6] file and return a list of tuples � ESTABLISHED�SYN_SENT�SYN_RECV� FIN_WAIT1� FIN_WAIT2� TIME_WAIT�CLOSE� CLOSE_WAIT�LAST_ACK�LISTEN�CLOSING) r r rR r� r� r� r� r� � � � r rR r� rH )� local_addr�stater r; z /proc/netFTrL r� r �NAr rK r r r; ) r] r� r� r0 r1 r2 r rI r� r r� r r< )�protocol� tcp_states�proc_net_fieldsrJ r� � skipped_first�linesr� �fieldsrL r r r r; r r r �_read_proc_net_protocol� sL � � rT c s� d}t � �dkr@d�tddd�D ]}�d�� fdd�t|d |d�D ��7 �qtd��fd d�tdt ��d �D ��d �d }|S g �� fd d�tddd�D �D ] }��tt|d ��� qOtd���d�d }|S )zDConvert an address from /proc/net/(tcp|udp)* to a normalized addressr r� r r� c � g | ] }� |d |� �qS �r r �r� r� ��paddrr r r� � r� z(convert_proc_address.<locals>.<listcomp>���r c s g | ] }� ||d � � � �qS )r� )r� rW r r r r� � r r� Tc rU rV r rW rX r r r� � r� r� �.F)r r� r� rF r< rr r� )rY � convertedr� r )rY r r �convert_proc_address� s$ * ��� � r] c C s� t � }ddg}| r|ddg7 }|D ] }zt|�||< W q ty. td| �}t|� Y qw t� }t|�� �}|�� d}|D ]0}|| D ])\}} } } } t |�} d}t | �|v r_|t | � }|d|d | | f | | | |f 7 }qFq@|S ) z5netstat-style output, without IPv6 address truncationr r �tcp6�udp6z!Could not get statistics for '%s'r r z %-5s %-46s %-11s %-5s %-11s %s z%s:%s) r rT r r r% r< �list�keysr� r] r� )r5 � proc_net_datar �pr� r7 � protocolsr� r r r r; rL r, r� r r r r s8 � �� r c C sV |du r| S | � d�r"t| �dk r|}|S tj�|| dd� �}|S tj�|| �}|S )zAdd prefix to dirNr r r )r r r] r� r� )r� r� �newdirr r r � _findpath& s ��rf c C s4 t jd dk r t�| d�S t�| jddd���d�S )z,Take a string and convert it to a hex stringr rR �hexr r� )�errorsrS )rX r\ �codecsr� �binascii�hexlify�decode)r� r r r � hex_encode4 s rm c C s0 t jd dk r| jdd��d�S t�| ��d�S )z,Take a hex string and convert it to a stringr rR rg )�encodingr )rX r\ rl rj � unhexlify)�hr r r � hex_decode= s rq � /run/ufw.lockc C s$ d}|st | d�}t�|tj� |S )zCreate a blocking lockfileN�w)rI r$ �lockf�LOCK_EX)�lockfile�dryrun�lockr r r � create_lockD s ry c C s> | du rdS zt �| t j� | �� W dS ty Y dS w )z(Free lockfile created with create_lock()N)r$ rt �LOCK_UNrO r )rx r r r � release_lockM s �r{ )r )Tr� )NT)F)rr F)I�__doc__� __future__r rj ri rU r$ r� r� r] r& rd r r� rn rX � functoolsr �tempfiler r r� rW �supported_protocolsr �ipv4_only_protocolsr r" r. r3 r2 r9 rF rK rP rc rj rx r~ r� r� r% rY r� r@ r� r� r� �getpidr� r� r* r1 r= r� r? r� r� r� r� r r r( r- r< rT r] r rf rm rq ry r{ r r r r �<module> s� 7 ' . #:4 9 & /%/#
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