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temp_utils( t util( t StringIOs /run/systemd/netif/leasest InvalidDHCPLeaseFileErrorc B s e Z d Z RS( s� Raised when parsing an empty or invalid dhcp.leases file.
Current uses are DataSourceAzure and DataSourceEc2 during ephemeral
boot to scrape metadata.
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__module__t __doc__( ( ( s6 /usr/lib/python2.7/site-packages/cloudinit/net/dhcp.pyR s t NoDHCPLeaseErrorc B s e Z d Z RS( s' Raised when unable to get a DHCP lease.( R R
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reached.s: Skip ephemeral DHCP setup, instance has connectivity to %sN( R R t LOGt debugt obtain_lease( R ( ( s6 /usr/lib/python2.7/site-packages/cloudinit/net/dhcp.pyt __enter__0 s
c C s | j � d S( s Teardown sandboxed dhcp context.N( t
clean_network( R t excp_typet
excp_valuet excp_traceback( ( s6 /usr/lib/python2.7/site-packages/cloudinit/net/dhcp.pyt __exit__; s c C s< | j r d | _ n | j s" d S| j j d d d � d S( s@ Exit _ephipv4 context to teardown of ip configuration performed.N( R R R R ( R ( ( s6 /usr/lib/python2.7/site-packages/cloudinit/net/dhcp.pyR ? s
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| j S( s9 Perform dhcp discovery in a sandboxed environment if possible.
@return: A dict representing dhcp options on the most recent lease
obtained from the dhclient discovery if run, otherwise an error
is raised.
@raises: NoDHCPLeaseError if no leases could be obtained.
i����s# Received dhcp lease on %s for %s/%st interfaces
fixed-addresss subnet-maskt ipt prefix_or_masks broadcast-addresst broadcasts rfc3442-classless-static-routess classless-static-routest
static_routest routerst routerR ( R t maybe_perform_dhcp_discoveryR R R R R t extract_dhcp_options_mappingt bcipt parse_static_routesR R R R ( R t leasest nmapt kwargst ephipv4( ( s6 /usr/lib/python2.7/site-packages/cloudinit/net/dhcp.pyR G s:
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s� Perform dhcp discovery if nic valid and dhclient command exists.
If the nic is invalid or undiscoverable or dhclient command is not found,
skip dhcp_discovery and return an empty dict.
@param nic: Name of the network interface we want to run dhclient on.
@return: A list of dicts representing dhcp options for each lease obtained
from the dhclient discovery if run, otherwise an empty list is
returned.
s1 Skip dhcp_discovery: Unable to find fallback nic.s8 Skip dhcp_discovery: nic %s not found in get_devicelist.t dhclients7 Skip dhclient configuration: No dhclient command found.t rmtree_ignore_errorst prefixs cloud-init-dhcp-t needs_exeN( R R R R R R t whichR t tempdirt Truet dhcp_discovery( t nict
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j | � � � n | S( s Parse the given dhcp lease file for the most recent lease.
Return a list of dicts of dhcp options. Each dict contains key value pairs
a specific lease in order from oldest to newest.
@raises: InvalidDHCPLeaseFileError on empty of unparseable leasefile
content.
s lease {(?P<lease>[^}]*)}\ni s& Cannot parse empty dhcp lease file {0}t ;t "t s option t i s1 Cannot parse dhcp lease file {0}. No leases found(
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| d � t | � S( s� Run dhclient on the interface without scripts or filesystem artifacts.
@param dhclient_cmd_path: Full path to the dhclient used.
@param interface: Name of the network inteface on which to dhclient.
@param cleandir: The directory from which to run dhclient as well as store
dhcp leases.
@return: A list of dicts of representing the dhcp leases parsed from the
dhcp.leases file or empty list.
s! Performing a dhcp discovery on %sR7 s dhclient.pids dhcp.leasesR t linkt sett devt upt captures -1s -vs -lfs -pfs -sfs /bin/truet maxwaiti t napleng{�G�z�?s+ dhclient did not produce expected files: %ss , c s s! | ] } t j j | � Vq d S( N( t ost patht basename( t .0t f( ( s6 /usr/lib/python2.7/site-packages/cloudinit/net/dhcp.pys <genexpr>� s t unknowni i� i s killing dhclient with pid=%ssC dhclient(pid=%s, parentpid=%s) failed to daemonize after %s secondsg $@( R R R_ R` t joinR t copyt accesst X_OKt subpR= t wait_for_filest warningt rangeRH RM t intt
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get_proc_ppidt killt signalt SIGKILLRW t timet sleept error( t dhclient_cmd_pathR t cleandirt sandbox_dhclient_cmdt pid_fileRQ t cmdt missingt ppidt _t pid_contentt pid( ( s6 /usr/lib/python2.7/site-packages/cloudinit/net/dhcp.pyR> � sD %
c C s t t j t | � d t �� S( s� Parse a systemd lease file content as in /run/systemd/netif/leases/
Parse this (almost) ini style file even though it says:
# This is private data. Do not parse.
Simply return a dictionary of key/values.t list_values( RP t configobjt ConfigObjR t False( t content( ( s6 /usr/lib/python2.7/site-packages/cloudinit/net/dhcp.pyt networkd_parse_lease
s c C sw | d k r t } n i } t j j | � s1 | Sx? t j | � D]. } t t j t j j | | � � � | | <qA W| S( s� Return a dictionary of dictionaries representing each lease
found in lease_d.i
The top level key will be the filename, which is typically the ifindex.N(
R t NETWORKD_LEASES_DIRR_ R` t isdirt listdirR� R RH Re ( t leases_dt rett lfile( ( s6 /usr/lib/python2.7/site-packages/cloudinit/net/dhcp.pyt networkd_load_leases s )c C sb | d k r t } n t d | � } x7 t | j � � D]# \ } } | j | � r7 | | Sq7 Wd S( NR� ( R R� R� t sortedR- R1 ( t keynameR� R) t _ifindext data( ( s6 /usr/lib/python2.7/site-packages/cloudinit/net/dhcp.pyt networkd_get_option_from_leases* s c s� � j d � � g t j d � � D] } | r" | ^ q" } g } � f d � } d } x^t | � D]P\ } } | | k r� qb n t | � } | t d d � k r$d } t | | � | k r� | | | t | | � � | Sd j | | d | d
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f � qb W| S( s� parse rfc3442 format and return a list containing tuple of strings.
The tuple is composed of the network_address (including net length) and
gateway for a parsed static route. It can parse two formats of rfc3442,
one from dhcpcd and one from dhclient (isc).
@param rfc3442: string in rfc3442 format (isc or dhcpd)
@returns: list of tuple(str, str) for all valid parsed routes until the
first parsing error.
E.g.
sr=parse_static_routes("32,169,254,169,254,130,56,248,255,0,130,56,240,1")
sr=[
("169.254.169.254/32", "130.56.248.255"), ("0.0.0.0/0", "130.56.240.1")
]
sr2 = parse_static_routes("24.191.168.128 192.168.128.1,0 192.168.128.1")
sr2 = [
("191.168.128.0/24", "192.168.128.1"), ("0.0.0.0/0", "192.168.128.1")
]
Python version of isc-dhclient's hooks:
/etc/dhcp/dhclient-exit-hooks.d/rfc3442-classless-routes
RB s [, .]c s' d | | | � f } t j | � d S( Ns� RFC3442 string malformed. Current route has CIDR of %s and requires %s significant octets, but only %s remain. Verify DHCP rfc3442-classless-static-routes value: %s( R Ru ( t cidrt requiredt remaint msg( t rfc3442( s6 /usr/lib/python2.7/site-packages/cloudinit/net/dhcp.pyt _trunc_errorR s i i i! i t .i i i i i t 0i i i i s 0.0.0.0sS Parsed invalid net length "%s". Verify DHCP rfc3442-classless-static-routes value.s %s/%s( t rstripRF RL t enumerateRm Rl RI Re R Ru RO ( R� t tokt tokensR" R� t current_idxt idxt
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