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NTF)� device_driver�is_netfail_primary�is_netfail_standby�r �driverr r r �is_netfailover� s �rf c C s, d}zt | d�}W n tk r& Y nX |S )zDReturns a str from reading /sys/class/net/<devname>/device/features.r zdevice/features)r2 � Exception�r Zfeaturesr r r �get_dev_features� s ri c C s( t | �}|rt|�dk r dS |d dkS )z�Return True if VIRTIO_NET_F_STANDBY bit (62) is set. https://github.com/torvalds/linux/blob/ 089cf7f6ecb266b6a4164919a2e69bd2f938374a/ include/uapi/linux/virtio_net.h#L60 �@ F�> �1)ri �lenrh r r r �has_netfail_standby_feature� s rn c C s< t | �dk rdS |dkr t| �}|dkr,dS t| �s8dS dS )z�A device is a "netfail master" device if: - The device does NOT have the 'master' sysfs attribute - The device driver is 'virtio_net' - The device has the standby feature bit set Return True if all of the above is True. NF� virtio_netT�rK ra rn rd r r r �is_netfail_master s rq c C st t | dd�}tj�|�s dS |dkr,t| �}|dkr8dS tj�tj�|��}t|�}|dkr`dS t|�}|spdS dS )a7 A device is a "netfail primary" device if: - the device has a 'master' sysfs file - the device driver is not 'virtio_net' - the 'master' sysfs file points to device with virtio_net driver - the 'master' device has the 'standby' feature bit set Return True if all of the above is True. rI rJ FNro T)r" rC r! rD ra �basename�realpathrn )r re Zmaster_sysfs_pathZmaster_devnameZ master_driverZmaster_has_standbyr r r rb s rb c C s< t | �dkrdS |dkr t| �}|dkr,dS t| �s8dS dS )z�A device is a "netfail standby" device if: - The device has a 'master' sysfs attribute - The device driver is 'virtio_net' - The device has the standby feature bit set Return True if all of the above is True. NFro Trp rd r r r rc 9 s rc c C s t | d�}|r|dkrdS dS )a� /* interface name assignment types (sysfs name_assign_type attribute) */ #define NET_NAME_UNKNOWN 0 /* unknown origin (not exposed to user) */ #define NET_NAME_ENUM 1 /* enumerated by kernel */ #define NET_NAME_PREDICTABLE 2 /* predictably named by the kernel */ #define NET_NAME_USER 3 /* provided by user-space */ #define NET_NAME_RENAMED 4 /* renamed by user-space */ �name_assign_type)�3�4TFr? )r rt r r r � is_renamedQ s rw c C s t t| d��}d|�� kS )N�ueventz DEVTYPE=vlan)�strr7 r[ )r rx r r r �is_vlan` s rz c C s0 d}t | d�}tj�|�r,tj�t�|��}|S )z8Return the device driver for net device named 'devname'.Nz device/driver)r" rC r! �islinkrr �readlink)r re Z driver_pathr r r ra e s ra c C s t | d�}|dkrdS |S )z;Return the device id string for net device named 'devname'.z device/deviceFNr? )r Zdev_idr r r � device_devidp s r} c C sj t �� st �� r tt� �� �S zt�t� �} W n6 t k rd } z|j t j krRg } n� W 5 d }~X Y nX | S �N) r � is_FreeBSD�is_DragonFlyBSD�list�get_interfaces_by_mac�valuesrC �listdirr r$ r# r' )�devsr1 r r r �get_devicelisty s r� c @ s e Zd ZdZdS )� ParserErrorz6Raised when a parser has issue parsing a file/content.N)�__name__� __module__� __qualname__�__doc__r r r r r� � s r� c C s | rt | t�sdS | �d�dkS )NF�configZdisabled)� isinstance�dict�get)�cfgr r r �is_disabled_cfg� s r� c C s6 t �� st �� rt� S t �� s&t �� r,t� S t� S dS )zqGet the list of network interfaces viable for networking. @return List of interfaces, sorted naturally. N)r r r� � find_candidate_nics_on_freebsd� is_NetBSD� is_OpenBSD�(find_candidate_nics_on_netbsd_or_openbsd� find_candidate_nics_on_linuxr r r r �find_candidate_nics� s r� c C s6 t �� st �� rt� S t �� s&t �� r,t� S t� S dS )z.Get the name of the 'fallback' network device.N)r r r� � find_fallback_nic_on_freebsdr� r� �&find_fallback_nic_on_netbsd_or_openbsd�find_fallback_nic_on_linuxr r r r �find_fallback_nic� s r� c C s t t� �� td�S )zmGet the names of the candidate network devices on NetBSD/OpenBSD. @return list of sorted interfaces ��key)�sortedr� r� r r r r r r� � s r� c C s t � } | r| d S dS )zfGet the 'fallback' network device name on NetBSD/OpenBSD. @return default interface, or None r N)r� ��namesr r r r� � s r� c C s8 t � ddddg�\} }| �� }|r&|S tt� �� td�S )zgGet the names of the candidate network devices on FreeBSD. @return List of sorted interfaces. �ifconfigz-lz-u�etherr� )r r r� r� r� r )�stdoutZ_stderrr� r r r r� � s r� c C s t � } | r| d S dS )z_Get the 'fallback' network device name on FreeBSD. @return List of sorted interfaces. r N)r� r� r r r r� � s r� c C sF dt �� krt�d� n,dd� t� D �} t| �rDt�d| � t �� g }g }tddddddd�D ]�\}}}}|d krvq`|�d �r�t�d |� q`t |d �}|r�|� |� q`t�d |� t |d�}|r�|� |� q`t |d�}|dkr�|� |� q`t�d|� q`g }||fD ]:} t | t d�} t| k�r6| �t� | �dt� || 7 }�q|S )zeGet the names of the candidate network devices on Linux. @return List of sorted interfaces. z net.ifnames=0z9Stable ifnames disabled by net.ifnames=0 in /proc/cmdlinec S s g | ]}|d krt |�s|�qS )�lo)rw )r Zdevicer r r r � s �z0find_candidate_nics_on_linux.<locals>.<listcomp>z4Found unstable nic names: %s; calling udevadm settleFT)�filter_openvswitch_internal�2filter_slave_if_master_not_bridge_bond_openvswitch� filter_vlan�filter_without_own_mac�filter_zero_mac�log_filtered_reasonsr� ZvethzIgnoring veth interface: %s�carrierz Interface has no carrier: %s�dormantr> )r� r= Zlowerlayerdownr< zInterface ignored: %sr� r )r Z get_cmdliner* r+ r� rm Zudevadm_settle�get_interfaces� startswithr: �appendr7 r� r �DEFAULT_PRIMARY_INTERFACE�remove�insert) ZunstableZ connectedZpossibly_connectedr �_r� r� r> Zsorted_interfaces� interfacesr r r r� � s` ��� r� c C s t � } | r| d S dS )z]Get the 'fallback' network device name on Linux. @return List of sorted interfaces. r N)r� r� r r r r� s r� c C sj t � }|sdS t|�r d|i}ndt|d��� i}| rJt|�}|rJ||d< dd||d�}||idd �}|S ) zBGenerate network cfg v2 for dhcp on the NIC most likely connected.Nr � macaddress�addressre T)Zdhcp4r �set-name�match� )� ethernets�version)r� rq r7 r ra )Z config_driverZ target_namer� re r� Znconfr r r �generate_fallback_config+ s& ��r� c C sJ dd� }dd� }| � d�}|dkr*|| �S |dkr:|| �S td| ��d S ) Nc S s� g }| � di �D ]|}|� d�dkr$q|� d�}|s4q|� d�}|� di �� d�}|� di �� d�}|snt|�}|szt|�}|�||||g� q|S ) Nr� rP ZphysicalZ mac_addressr �paramsre � device_id)r� ra r} r� )�netcfg�physdevs�ent�macr re r� r r r � _version_1I s z$extract_physdevs.<locals>._version_1c S s� g }| � di ��� D ]z}|� d�}|s(q|� di �� d�}|s@q|� di �� d�}|� di �� d�}|spt|�}|s|t|�}|�||||g� q|S )Nr� r� r� r� re r� )r� r� ra r} r� )r� r� r� r r� re r� r r r � _version_2[ s z$extract_physdevs.<locals>._version_2r� � r� z"Unknown network config version: %s)r� � RuntimeError)r� r� r� r� r r r �extract_physdevsH s r� Fc C s* t | d�}|dkr"|r td��dS |dkS )a� return True if the provided interface has its own address. Based on addr_assign_type in /sys. Return true for any interface that does not have a 'stolen' address. Examples of such devices are bonds or vlans that inherit their mac from another device. Possible values are: 0: permanent address 2: stolen from another device 1: randomly generated 3: set using dev_set_mac_addressZaddr_assign_typeNz%s had no addr_assign_type.T)r r� � )r: r8 )�ifname�strictZ assign_typer r r �interface_has_own_macx s r� Tc C s� i }t � D ]*\}}}}d|||�� |t|�d�||< q | r�t�d�}tjdddddd d gd d �\}}tjdd ddgd d �\} }t� } || fD ]} | �|�| �� q�|� � D ] } | d dkp�| d | k| d< q�|S )a� Collect information necessary for rename_interfaces. returns a dictionary by mac address like: {name: { 'downable': None or boolean indicating that the device has only automatically assigned ip addrs. 'device_id': Device id value (if it has one) 'driver': Device driver (if it has one) 'mac': mac address (in lower case) 'name': name 'up': boolean: is_up(name) }} N)�downabler� re r� r r; z[0-9]+:\s+(\w+)[@:]�ipz-6ZaddrZshowZ permanentZscope�globalT)Zcapturez-4r; Fr r� ) r� r r@ r �compiler �set�update�findallr� ) Zcheck_downable�cur_infor r� re r� ZnmatchZipv6r] Zipv4Znics_with_addressesZ bytes_out�dr r r �_get_current_rename_info� s. � � �r� c st t | �st�d� d S |d kr$t� }i � |�� D ]:\}}|�� }|�d�rZ|d �� |d< ||d< |� |< q0t�d� � dd� }g }g } g } |� �} d} d} d d � �� �fd d �}| D �]�\}}}}|r�|�� }g }||||�}|s�|r�| �d ||f � q�|�d�}||k�rq�|�s0|r�| �d ||f � q�|d �r�d}|d �sb|r�| �||||f � q�d|d< |�d|||ff� | �d|||ff� || k�r\| | }|d �r�d}|d �s�|r�| �||||f � q�n|�d|||ff� d }|d k�s|| k�r| d7 } | | }�q�|�d||||ff� ||d< |� �} |d �r\| �d|||ff� |�d|||d |ff� ||d< |� �} ||7 }q�t j t j t j d�}t |�t | � dk�r�t | ��r�t� d| | � n t�d| � nxt�d| || � || D ]\\}}}}z|| |� W n< tk �rR } z | �d|||||f � W 5 d }~X Y nX �q�t | ��rptd �| ���d S ) Nzno interfaces to renamer� r zDetected interfaces %sc S s t dd� | �� D ��S )Nc s s | ]}|d |fV qdS )r Nr �r �datar r r � <genexpr>� s z<_rename_interfaces.<locals>.update_byname.<locals>.<genexpr>)r� r� )Zbymacr r r � update_byname� s z)_rename_interfaces.<locals>.update_bynamez cirename%d���c S sd |r0|r0|r0| d |ko.| d |ko.| d |kS |rP|rP| d |koN| d |kS |r`| d |kS dS )zmatch if set and in datar� re r� Fr )r� r� re r� r r r � entry_match� s � � z'_rename_interfaces.<locals>.entry_matchc sT � ���fdd��� � D �}t|�rPt|�dkrHd|��� f }t|��|d S d S )Nc s g | ]}�|��� �r|�qS r r r� )r� re r� r� r r r � s �z:_rename_interfaces.<locals>.find_entry.<locals>.<listcomp>r� zjFailed to match a single device. Matched devices "%s" with search values "(mac:%s driver:%s device_id:%s)"r )r� rm r8 )r� re r� r� �msg�r� r� )r� re r� r � find_entry� s � ��z&_rename_interfaces.<locals>.find_entryz<[nic not present] Cannot rename mac=%s to %s, not available.r; z*[busy] Error renaming mac=%s from %s to %sr� Fr= z2[busy-target] Error renaming mac=%s from %s to %s.r� �rename)r� r= r; r z1Unable to rename interfaces: %s due to errors: %sz$no work necessary for renaming of %szRenamed %s with ops %sz.[unknown] Error performing %s%s for %s, %s: %s� )rm r* r+ r� �items�copyr� r r� r Z link_renameZ link_downZlink_up�warningrg r� rL ) �renamesZstrict_presentZ strict_busyZ current_infor r� Zcurr� Zops�errorsZupsZ cur_bynameZ tmpname_fmtZtmpir� r� �new_namere r� Zcur_opsZcur_namer� �targetZtmp_nameZopmap�opr� r1 r r� r �_rename_interfaces� s� �� �� � � �� r� c C s$ d}t j�t| d��rd}t| |�S )z6Returns the string value of an interface's MAC Addressr� Z bonding_slavezbonding_slave/perm_hwaddr)rC r! �isdirr" r7 )r� r! r r r �get_interface_macX s r� c C s> t | d�dkr:t| �}|r6|r6|dd� |dd� }|S dS )z�Returns the string value of an Infiniband interface's hardware address. If ethernet_format is True, an Ethernet MAC-style 6 byte representation of the address will be returned. rP rQ �$ i��3 N)r7 r� )r� Zethernet_formatr� r r r �get_ib_interface_hwaddrb s r� c C s< t �� st �� rt� S t �� r$t� S t �� r2t� S t� S d S r~ ) r r r� � get_interfaces_by_mac_on_freebsdr� � get_interfaces_by_mac_on_netbsdr� � get_interfaces_by_mac_on_openbsd� get_interfaces_by_mac_on_linuxr r r r r� p s r� )r� rT c C s0 t � �� D ] \}}| �� |�� kr | S q d S r~ )r� r� r )r� Z interface_macZinterface_namer r r � find_interface_name_from_mac{ s r� c C s> t � dddg�\} }dd� }dd� }dd � ||| ��D �}|S ) Nr� �-ar� c s s@ d}| � d�D ]&}|�d�r&||7 }q|r0|V |}q|V d S )Nr r� � )r r� )r\ Z curr_block�liner r r �flatten� s z1get_interfaces_by_mac_on_freebsd.<locals>.flattenc s s4 | D ]*}t �d|�}|r|�d�|�d�fV qd S )Nz2^(?P<ifname>\S*): .*ether\s(?P<mac>[\da-f:]{17}).*r� r� )r �search�group)Z flat_list�block�mr r r �find_mac� s �z2get_interfaces_by_mac_on_freebsd.<locals>.find_macc S s i | ]\}}||�qS r r )r r� r� r r r � <dictcomp>� s z4get_interfaces_by_mac_on_freebsd.<locals>.<dictcomp>)r )r\ r� r� r� Zresultsr r r r� � s r� c C sb i } d}t � ddg�\}}t�dd|��� }|D ],}t�||�}|r0|�� }|d | |d < q0| S )NzE(?P<ifname>\w+).*address:\s(?P<mac>([\da-f]{2}[:-]){5}([\da-f]{2})).*r� r� �\n\s+� r� r� �r r �subr[ r� � groupdict�rV Zre_field_matchr\ r� Zif_linesr� r� Zfieldsr r r r� � s � r� c C sb i } d}t � ddg�\}}t�dd|��� }|D ],}t�||�}|r0|�� }|d | |d < q0| S )NzC(?P<ifname>\w+).*lladdr\s(?P<mac>([\da-f]{2}[:-]){5}([\da-f]{2})).*r� r� r� r� r� r� r r r r r r� � s � r� c C s� i } t � D ]�\}}}}|| krV|dkr<t�d|| | |� q d|| | |f }t|��|| |< t|d�}|r || kr~|| |< q t�d|| | |� q | S )zmBuild a dictionary of tuples {mac: name}. Bridges and any devices that have a 'stolen' mac are excluded.)Z fsl_enetcZ mscc_felixZqmi_wwanz>Ignoring duplicate macs from '%s' and '%s' due to driver '%s'.z6duplicate mac found! both '%s' and '%s' have mac '%s'.Tz^Ethernet and InfiniBand interfaces have the same address both '%s' and '%s' have address '%s'.)r� r* r+ r� r� r� )rV r r� re Z_devidr� �ib_macr r r r� � s: �� �r� )� filter_hyperv_vf_with_syntheticr� r� r� r� r� r� rT c C s$ |r t jndd� }g }t� } d�d�} | D ]�} |r<t| �s<q*t| �rP|d| � q*|r^t| �r^q*t| �rr|d| � q*|r�t| �dk r�t | �s�t | �s�q*t | �r�|d| � q*t | �} | s�|d | � q*|r�| d kr�| | dt | �� kr�q*|r�t| �r�q*t| �} |�| | | t| �f� q*| �r t||� |S ) z�Return list of interface tuples (name, mac, driver, device_id) Bridges and any devices that have a 'stolen' mac are excluded.c W s d S r~ r )�argsr r r �<lambda> � z get_interfaces.<locals>.<lambda>�:)�00r r r r r r r r r r r r r r r z Ignoring bridge interface: %szIgnoring bond interface: %sNz Ignoring failover interface: %sz"Ignoring interface without mac: %sr� )r* r+ r� rL r� rF rz rH rK rN rO rf r� rm r` ra r� r} �)filter_hyperv_vf_with_synthetic_interface)r r� r� r� r� r� r� �filtered_loggerrV r� Zzero_macr r� re r r r r� sT � ��� � r� ).N)r r� rT c sX dd� |D �� � fdd�|D �}|D ].}|\}}}}| d||� | |� |� |� q$dS )a� Filter Hyper-V SR-IOV/VFs when used with synthetic hv_netvsc. Hyper-V's netvsc driver may register an SR-IOV/VF interface with a mac that matches the synthetic (hv_netvsc) interface. This VF will be enslaved to the synthetic interface, but cloud-init may be racing this process. The [perhaps-yet-to-be-enslaved] VF should never be directly configured, so we filter interfaces that duplicate any hv_netvsc mac address, as this the most reliable indicator that it is meant to be subordinate to the synthetic interface. VF drivers will be mlx4_core, mlx5_core, or mana. However, given that this list of drivers has changed over time and mana's dependency on hv_netvsc is expected to be removed in the future, we no longer rely on these names. Note that this will not affect mlx4/5 instances outside of Hyper-V, as it only affects environments where hv_netvsc is present. c S s& i | ] }|d dkr|d |d �qS )r� � hv_netvscr� r r �r �ir r r r� U s z=filter_hyperv_vf_with_synthetic_interface.<locals>.<dictcomp>c s( g | ] }|d � kr|d dkr|�qS )r� r� r r r �Zhv_netvsc_mac_to_namer r r X s �z=filter_hyperv_vf_with_synthetic_interface.<locals>.<listcomp>zdIgnoring %r VF interface with driver %r due to synthetic hv_netvsc interface %r with mac address %r.N)r� )r r� Zinterfaces_to_remover r r� re r� r r r r A s � � �r c C sP i } t � D ]@\}}}}t|d�}|r || krBtd|| | |f ��|| |< q | S )zTBuild a dictionary mapping Infiniband interface names to their hardware address.Fz5duplicate mac found! both '%s' and '%s' have mac '%s')r� r� r� )rV r r� r r r r �get_ib_hwaddrs_by_interfacek s �� r )�convert_to_addressr� c K s* z| |f|�W S t k r$ Y dS X dS )a Use a function to return an address. If conversion throws a ValueError exception return False. :param check_cb: Test function, must return a truthy value :param address: The string to test. :return: Address or False FN)r8 )r r� �kwargsr r r �maybe_get_address{ s r )r� rT c C s t ttj| ��S )z�Returns a bool indicating if ``s`` is an IP address. :param address: The string to test. :return: A bool indicating if the string is an IP address or not. )rU r � ipaddress� ip_address�r� r r r � is_ip_address� s r c C s t ttj| ��S )z�Returns a bool indicating if ``s`` is an IPv4 address. :param address: The string to test. :return: A bool indicating if the string is an IPv4 address or not. )rU r r Z IPv4Addressr r r r �is_ipv4_address� s r c C s t ttj| ��S )z�Returns a bool indicating if ``s`` is an IPv6 address. :param address: The string to test. :return: A bool indicating if the string is an IPv4 address or not. )rU r r Z IPv6Addressr r r r �is_ipv6_address� s r c C s t ttj| dd��S )z�Returns a bool indicating if ``s`` is an IPv4 or IPv6 network. :param address: The string to test. :return: A bool indicating if the string is an IPv4 address or not. F�r� )rU r r � ip_networkr r r r � is_ip_network� s r c C s t ttj| dd��S )z�Returns a bool indicating if ``s`` is an IPv4 network. :param address: The string to test. :return: A bool indicating if the string is an IPv4 address or not. Fr )rU r r � IPv4Networkr r r r �is_ipv4_network� s �r c C s t ttj| dd��S )z�Returns a bool indicating if ``s`` is an IPv6 network. :param address: The string to test. :return: A bool indicating if the string is an IPv4 address or not. Fr )rU r r Z IPv6Networkr r r r �is_ipv6_network� s �r )r� �subnetrT c C s t �| �}t j|dd�}||kS )z�Returns a bool indicating if ``s`` is in subnet. :param address: The string of IP address. :param subnet: The string of subnet. :return: A bool indicating if the string is in subnet. Fr )r r r )r� r! r Zsubnet_networkr r r �is_ip_in_subnet� s r" )�gatewayr! rT c C sL zt | |� W S tk rF } zt�d| ||� W Y �dS d}~X Y nX dS )z�Returns a bool indicating if should add gateway onlink flag. :param gateway: The string of gateway address. :param subnet: The string of subnet. :return: A bool indicating if the string is in subnet. zDFailed to check whether gateway %s is contained within subnet %s: %sFN)r" r8 r* r� )r# r! r1 r r r � should_add_gateway_onlink_flag� s �r$ c C s@ | d � d�s| d tkr dS | d dkr<t| �d��r<dS dS )z:Common helper for checking network_state subnets for ipv6.rP �6TZstaticr� F)�endswith�IPV6_DYNAMIC_TYPESr r� )r! r r r �subnet_is_ipv6 s r( c C s t t�d| � ��j�S )z�Convert a network prefix to an ipv4 netmask. This is the inverse of ipv4_mask_to_net_prefix. 24 -> "255.255.255.0" Also supports input as a string.�0.0.0.0/)ry r r �netmask)�prefixr r r �net_prefix_to_ipv4_mask s r, c C s t �d| � ��jS )a Convert an ipv4 netmask into a network prefix length. If the input is already an integer or a string representation of an integer, then int(mask) will be returned. "255.255.255.0" => 24 str(24) => 24 "24" => 24 r) )r r � prefixlen)�maskr r r �ipv4_mask_to_net_prefix s r/ c C s� zt �d| � ��j}|W S tk r, Y nX t �| �}t|�}|dkrL|S tt j| |d @ �� �}||? }t j| }d|> d }||kr�td| ��|S )z�Convert an ipv6 netmask (very uncommon) or prefix (64) to prefix. If the input is already an integer or a string representation of an integer, then int(mask) will be returned. "ffff:ffff:ffff::" => 48 "48" => 48 z::/r r� zInvalid network mask '%s') r r r- r8 r r �minZ IPV6LENGTH� bit_length)r. r- r* Zmask_intZtrailing_zeroesZ leading_onesZall_onesr r r �ipv6_mask_to_net_prefix' s& � r2 )r. r� rT c C s t tj|� d| � �dd�j�S )zCGet string representation of broadcast address from an ip/mask pairr Fr )ry r r Zbroadcast_address)r. r� r r r �mask_and_ipv4_to_bcast_addrJ s �r3 c @ s e Zd ZdS )�RendererNotFoundErrorN)r� r� r� r r r r r4 Q s r4 )r )NNNN)N)N)N)N)N)N)F)T)TTN)TTTTTTF)er# � functoolsr ZloggingrC r �typingr r r r r Z cloudinitr r Z cloudinit.net.netops.iproute2r Z getLoggerr� r* r r� r' rX r� r r r" r2 r7 r: r@ rF rH rK rN rO rR � lru_cacherU rW r� r_ ry r` rf ri rn rq rb rc rw rz ra r} r� rg 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 r r r r" r$ r( r, r r/ r2 r3 r� r4 r r r r �<module> s� �� � % ! H 0 / � H �� =� * #
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