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� jAN � @ sD d dl Z d dlT d dlZd dlZdZG dd� d�ZG dd� d�ZdS )� N)�*z0.1c @ s e Zd ZdZdd� Zdd� ZdS )�SchemaValidatorz+Libnftables JSON validator using jsonschemac C s^ t j�t j�t�d�}t|d�� }t�|�| _W d � n1 sB0 Y dd l }|| _ d S )Nz schema.json�rr )
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numeric_proto� numeric_prio�numeric_symbol� numeric_time�terseN�libnftables.so.1c C s d| _ t�|�}|j| _t| j_tg| j_|j| _t | j_tg| j_|j
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_|j| _ttg| j_|j| _t| j_tg| j_|j| _t| j_tg| j_|j| _t| j_tg| j_|j| _t| j_tg| j_|j| _t| j_ttg| j_|j| _t| j_ttg| j_|j| _t| j_ttg| j_|j| _tg| j_|j| _t| j_tg| j_|j| _ttg| j_|j| _t| j_ttg| j_|j | _ tg| j _|j | _ tg|j _| �d�| _ | �| j � | �| j � dS )al Instantiate a new Nftables class object.
Accepts a shared object file to open, by default standard search path
is searched for a file named 'libnftables.so'.
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is turned on.
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z Nftables._flags_from_numericc C s� t |ttf�r|f}d}|D ]^}t |t�rF|�|�}|d u rrtd��n,t |t�rj|dk s`|dkrrtd��ntd��||O }q |S )Nr zInvalid argumentl �� zNot a valid flag)�
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zNftables._flags_to_numericc C s | � | j�}| �| j|�S )zsGet currently active input flags.
Returns a set of flag names. See set_input_flags() for details.
)r4 r2 rP � input_flags�r rL r r r �get_input_flags� s zNftables.get_input_flagsc C s* | � | j|�}| �| j|�}| �| j|�S )a Set input flags.
Resets all input flags to values. Accepts either a single flag or a list
of flags. Each flag might be given either as string or integer value as
shown in the following table:
Name | Value (hex)
-----------------------
"no-dns" | 0x1
"json" | 0x2
"no-dns" disables blocking address lookup.
"json" enables JSON mode for input.
Returns a set of previously active input flags, as returned by
get_input_flags() method.
)rX rY r5 r2 rP �r rW rL �oldr r r �set_input_flags� s zNftables.set_input_flagsc C s | j | }| �| j�|@ dkS �Nr )� output_flagsr6 r2 )r �name�flagr r r Z__get_output_flag� s
zNftables.__get_output_flagc C sH | j | }| �| j�}|r$||B }n
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| � d�S )z�Get the current state of reverse DNS output.
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for IP addresses in output.
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Accepts a boolean turning reverse DNS lookups in output on or off.
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r& ��_Nftables__set_output_flagrZ r r r �set_reversedns_output� s z Nftables.set_reversedns_outputc C s
| � d�S )z�Get the current state of service name output.
Returns a boolean indicating whether service names are used for port
numbers in output or not.
r' rd rG r r r �get_service_output s zNftables.get_service_outputc C s | � d|�S )z�Enable or disable service name output.
Accepts a boolean turning service names for port numbers in output on
or off.
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r' rg rZ r r r �set_service_output s zNftables.set_service_outputc C s
| � d�S )z�Get the current state of stateless output.
Returns a boolean indicating whether stateless output is active or not.
r( rd rG r r r �get_stateless_output s z Nftables.get_stateless_outputc C s | � d|�S )z�Enable or disable stateless output.
Accepts a boolean turning stateless output either on or off.
Returns the previous value.
r( rg rZ r r r �set_stateless_output s z Nftables.set_stateless_outputc C s
| � d�S )z~Get the current state of handle output.
Returns a boolean indicating whether handle output is active or not.
r) rd rG r r r �get_handle_output( s zNftables.get_handle_outputc C s | � d|�S )z�Enable or disable handle output.
Accepts a boolean turning handle output on or off.
Returns the previous value.
r) rg rZ r r r �set_handle_output/ s zNftables.set_handle_outputc C s
| � d�S )zzGet the current state of JSON output.
Returns a boolean indicating whether JSON output is active or not.
r rd rG r r r �get_json_output8 s zNftables.get_json_outputc C s | � d|�S )z�Enable or disable JSON output.
Accepts a boolean turning JSON output either on or off.
Returns the previous value.
r rg rZ r r r �set_json_output? s zNftables.set_json_outputc C s
| � d�S )zzGet the current state of echo output.
Returns a boolean indicating whether echo output is active or not.
r* rd rG r r r �get_echo_outputH s zNftables.get_echo_outputc C s | � d|�S )z�Enable or disable echo output.
Accepts a boolean turning echo output on or off.
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r* rg rZ r r r �set_echo_outputO s zNftables.set_echo_outputc C s
| � d�S )z�Get the current state of GID/UID output.
Returns a boolean indicating whether names for group/user IDs are used
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r+ rd rG r r r �get_guid_outputX s zNftables.get_guid_outputc C s | � d|�S )z�Enable or disable GID/UID output.
Accepts a boolean turning names for group/user IDs on or off.
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r+ rg rZ r r r �set_guid_output` s zNftables.set_guid_outputc C s
| � d�S )ztGet current status of numeric protocol output flag.
Returns a boolean value indicating the status.
r, rd rG r r r �get_numeric_proto_outputi s z!Nftables.get_numeric_proto_outputc C s | � d|�S )z�Set numeric protocol output flag.
Accepts a boolean turning numeric protocol output either on or off.
Returns the previous value.
r, rg rZ r r r �set_numeric_proto_outputp s z!Nftables.set_numeric_proto_outputc C s
| � d�S )zzGet current status of numeric chain priority output flag.
Returns a boolean value indicating the status.
r- rd rG r r r �get_numeric_prio_outputy s z Nftables.get_numeric_prio_outputc C s | � d|�S )z�Set numeric chain priority output flag.
Accepts a boolean turning numeric chain priority output either on or
off.
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r- rg rZ r r r �set_numeric_prio_output� s z Nftables.set_numeric_prio_outputc C s
| � d�S )zsGet current status of numeric symbols output flag.
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r. rd rG r r r �get_numeric_symbol_output� s z"Nftables.get_numeric_symbol_outputc C s | � d|�S )z�Set numeric symbols output flag.
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r. rg rZ r r r �set_numeric_symbol_output� s z"Nftables.set_numeric_symbol_outputc C s
| � d�S )zqGet current status of numeric times output flag.
Returns a boolean value indicating the status.
r/ rd rG r r r �get_numeric_time_output� s z Nftables.get_numeric_time_outputc C s | � d|�S )z�Set numeric times output flag.
Accepts a boolean turning numeric representation of time values
in output either on or off.
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r/ rg rZ r r r �set_numeric_time_output� s z Nftables.set_numeric_time_outputc C s
| � d�S )z|Get the current state of terse output.
Returns a boolean indicating whether terse output is active or not.
r0 rd rG r r r �get_terse_output� s zNftables.get_terse_outputc C s | � d|�S )z�Enable or disable terse output.
Accepts a boolean turning terse output either on or off.
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r0 rg rZ r r r �set_terse_output� s zNftables.set_terse_outputc C s | � | j�}| �| j|�S )zmGet currently active debug flags.
Returns a set of flag names. See set_debug() for details.
)r8 r2 rP � debug_flagsrZ r r r � get_debug� s zNftables.get_debugc C s( | � | j|�}| �� }| �| j|� |S )a Set debug output flags.
Accepts either a single flag or a set of flags. Each flag might be
given either as string or integer value as shown in the following
table:
Name | Value (hex)
-----------------------
scanner | 0x1
parser | 0x2
eval | 0x4
netlink | 0x8
mnl | 0x10
proto-ctx | 0x20
segtree | 0x40
Returns a set of previously active debug flags, as returned by
get_debug() method.
)rX r� r� r9 r2 r\ r r r � set_debug� s zNftables.set_debugc C sd d}t |t�s d}|�d�}| �| j|�}| �| j�}| �| j�}|rZ|�d�}|�d�}|||fS )a� Run a simple nftables command via libnftables.
Accepts a string containing an nftables command just like what one
would enter into an interactive nftables (nft -i) session.
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rc -- return code as returned by nft_run_cmd_from_buffer() fuction
output -- a string containing output written to stdout
error -- a string containing output written to stderr
FT�utf-8)rQ �bytes�encoder< r2 r: r; �decode)r ZcmdlineZcmdline_is_unicode�rc�output�errorr r r �cmd� s
z Nftables.cmdc C sJ | � d�}| �t�|��\}}}|s.| � |� t|�r@t�|�}|||fS )ai Run an nftables command in JSON syntax via libnftables.
Accepts a hash object as input.
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rc -- return code as returned by nft_run_cmd_from_buffer() function
output -- a hash object containing library standard output
error -- a string containing output written to stderr
T)rq r� r �dumps�len�loads)r � json_rootZ json_out_oldr� r� r� r r r �json_cmd� s
zNftables.json_cmdc C s | j st� | _ | j �|� dS )z�Validate JSON object against libnftables schema.
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Returns True if JSON is valid, raises an exception otherwise.
T)� validatorr r )r r� r r r �
json_validate s zNftables.json_validatec C sl d}t |t�s$d}t|�}|�d�}| �| j|�}| �| j�}| �| j�}|rb|�d�}|�d�}|||fS )aV Run a nftables command set from a file
filename can be a str or a Path
Returns a tuple (rc, output, error):
rc -- return code as returned by nft_run_cmd_from_filename() function
output -- a string containing output written to stdout
error -- a string containing output written to stderr
FTr� ) rQ r� rR r� r= r2 r: r; r� )r �filenameZfilename_is_unicoder� r� r� r r r �
cmd_from_file s
zNftables.cmd_from_filec C s2 t |t�s t|�}|�d�}| �| j|�}|dkS )z�Add a path to the include file list
The default list includes the built-in default one
Returns True on success, False if memory allocation fails
r� r )rQ r� rR r� r> r2 )r r� r� r r r �add_include_path+ s
zNftables.add_include_pathc C s | � | j� dS )zSClear include path list
Will also remove the built-in default one
N)r? r2 rG r r r �clear_include_paths7 s z Nftables.clear_include_pathsc C s | � | j�S )zHGet dry run state
Returns True if set, False otherwise
)r@ r2 rG r r r � get_dry_run> s zNftables.get_dry_runc C s | � � }| �| j|� |S )zG Set dry run state
Returns the previous dry run state
)r� rA r2 )r Zonoffr] r r r � set_dry_runE s zNftables.set_dry_runc C s* t |t�s|�d�}| �| j|�}|dkS )z\Add a variable to the variable list
Returns True if added, False otherwise
r� r )rQ r� r� rB r2 )r �varr� r r r �add_varO s
zNftables.add_varc C s | � | j� dS )z Clear variable list
N)rC r2 rG r r r �
clear_varsY s zNftables.clear_vars)r1 )4r r r r rY r� r` r� r rH rP rX r[ r^ re rh rf ri rj rk rl rm rn ro rp rq rr rs rt ru rv rw rx ry rz r{ r| r} r~ r r� r� r� r� r� r� r� r� r� r� r� r� r r r r r % s� �� �
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