o w7e9T@slddlZddlZddlZddlZddlZddlZddlZddlZddlm Z ddl m Z m Z m Z ddlZddlmZmZmZddlmZmZmZmZmZeeZdZdZGdd d eZGd d d eZ Gd d d eZ!GdddeZ"GdddeZ#ddZ$d$ddZ%ddZ&d%ddZ'd%ddZ(Gdddej)Z*Gddde*Z+Gd d!d!Z,Gd"d#d#e*Z-dS)&N)StringIO)AnyDictList)subp temp_utilsutil)find_fallback_nicget_devicelistget_ib_interface_hwaddrget_interface_macis_ib_interfacez/run/systemd/netif/leasesaN#!/bin/sh log() { echo "udhcpc[$PPID]" "$interface: $2" } [ -z "$1" ] && echo "Error: should be called from udhcpc" && exit 1 case $1 in bound|renew) cat < "$LEASE_FILE" { "interface": "$interface", "fixed-address": "$ip", "subnet-mask": "$subnet", "routers": "${router%% *}", "static_routes" : "${staticroutes}" } JSON ;; deconfig) log err "Not supported" exit 1 ;; leasefail | nak) log err "configuration failed: $1: $message" exit 1 ;; *) echo "$0: Unknown udhcpc command: $1" >&2 exit 1 ;; esac c@eZdZdZdS)NoDHCPLeaseErrorz'Raised when unable to get a DHCP lease.N__name__ __module__ __qualname____doc__rr4/usr/lib/python3/dist-packages/cloudinit/net/dhcp.pyrArc@r)InvalidDHCPLeaseFileErrorzRaised when parsing an empty or invalid dhclient.lease file. Current uses are DataSourceAzure and DataSourceEc2 during ephemeral boot to scrape metadata. NrrrrrrErrc@r)NoDHCPLeaseInterfaceErrorz7Raised when unable to find a viable interface for DHCP.NrrrrrrMrrc@r)NoDHCPLeaseMissingDhclientErrorz$Raised when unable to find dhclient.NrrrrrrQrrc@r)NoDHCPLeaseMissingUdhcpcErrorz)Raised when unable to find udhcpc client.NrrrrrrUrrc CsT|jD]#}z|}td|j|WSttfy&td|jYqwt)zdistros set priority list, select based on this order which to use If the priority dhcp client isn't found, fall back to lower in list. zDHCP client selected: %szDHCP client not found: %s)dhcp_client_priorityLOGdebug client_namerrwarning)distroclient dhcp_clientrrrselect_dhcp_clientYs   r$cCsZ|durt}|durtdtn|tvr"td|tt|}||||S)aPerform dhcp discovery if nic valid and dhclient command exists. If the nic is invalid or undiscoverable or dhclient command is not found, skip dhcp_discovery and return an empty dict. @param nic: Name of the network interface we want to run dhclient on. @param dhcp_log_func: A callable accepting the dhclient output and error streams. @return: A list of dicts representing dhcp options for each lease obtained from the dhclient discovery if run, otherwise an empty list is returned. Nz1Skip dhcp_discovery: Unable to find fallback nic.z8Skip dhcp_discovery: nic %s not found in get_devicelist.)r rrrr r$dhcp_discovery)r!nic dhcp_log_funcr"rrrmaybe_perform_dhcp_discoveryks   r(cCsttjt|ddS)zParse 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.F) list_values)dict configobj ConfigObjr)contentrrrnetworkd_parse_leasesr.cCsP|durt}i}tj|s|St|D]}tttj||||<q|S)zReturn 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) NETWORKD_LEASES_DIRospathisdirlistdirr.r load_filejoin)leases_dretlfilerrrnetworkd_load_leasess  r9cCsF|durt}t|d}t|D]\}}||r ||SqdS)N)r6)r/r9sorteditemsget)keynamer6leases_ifindexdatarrrnetworkd_get_option_from_leasess   rAc@sLeZdZdZeddZeddZedefddZedefd d Z d S) DhcpClientcCstjd|jgddgddS)Npkillrrcs)rr)clsrrrkill_dhcp_clientszDhcpClient.kill_dhcp_clientcCs*|td}|D]}t|q dS)Nz/var/lib/dhcp/*)rIglobr0remove)rHfilesfilerrr clear_leasess   zDhcpClient.clear_leasesdhcp_interfacecCs|jd|j|ddgddS)NstartrrErFmanage_servicerrHrOr!rrr start_services zDhcpClient.start_servicecCs|jd|jddgddS)NstoprrErFrQrSrrr stop_serviceszDhcpClient.stop_serviceN) rrrr classmethodrIrNstrrTrVrrrrrBs  rBc@szeZdZdZddZededeeee ffddZ  dd d Z ed d Z ed dZ edddZeddZdS) IscDhclientdhclientcC&td|_|jstdtdS)NrZz7Skip dhclient configuration: No dhclient command found.)rwhich dhclient_pathrrrselfrrr__init__s zIscDhclient.__init__ lease_filereturncCstdtj}g}t|}t|dkrtd|||D]+}g}| dD]}| dd dd}|s:q)| | dd q)| t |q |sUtd ||S) a7Parse the given dhcp lease file returning all leases as dicts. 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. zlease {(?P.*?)}\nrz&Cannot parse empty dhcp lease file {0};"rCzoption  rEz1Cannot parse dhcp lease file {0}. No leases found)recompileDOTALLrr4lenrformatfindallsplitstripreplaceappendr*)ra lease_regex dhcp_leases lease_contentlease lease_optionslinerrrparse_dhcp_lease_files,   z!IscDhclient.parse_dhcp_lease_fileNc Cstd|d}d}d}ttt|t|Wdn1s&wY|j|t |rZdt |dd}d||f}t j dd } tj | |d }t||zt||j||||\} } Wntjy} ztd | j| j| jt| d} ~ wwtj||gd d d} | rtdddd| DgSd}d}tddD]8}t|}zt|}Wn tyYnwt |}|dkrtd|t!|t"j#d}nt$%d q|st&d||d|dur|| | |'|S)aRun dhclient on the interface without scripts/filesystem artifacts. @param dhclient_cmd_path: Full path to the dhclient used. @param interface: Name of the network interface on which to dhclient. @param dhcp_log_func: A callable accepting the dhclient output and error streams. @return: A list of dicts of representing the dhcp leases parsed from the dhclient.lease file or empty list. !Performing a dhcp discovery on %sz/run/dhclient.pidz/run/dhclient.leaseNz20:%s$z0interface "%s" {send dhcp-client-identifier %s;}T needs_exez-dhclient.confz3dhclient exited with code: %s stderr: %r stdout: %rg{Gz?)maxwaitnaplenz+dhclient did not produce expected files: %sz, css|] }tj|VqdSN)r0r1basename).0frrr Isz-IscDhclient.dhcp_discovery..unknownFrirEzkilling dhclient with pid=%szCdhclient(pid=%s, parentpid=%s) failed to daemonize after %s secondsg$@)(rr contextlibsuppressFileNotFoundErrorr0rKnet_opslink_upr r rget_tmp_ancestorr1r5r write_filerbuild_dhclient_cmdr]ProcessExecutionError exit_codestderrstdoutrwait_for_filesr ranger4rmint ValueError get_proc_ppidkillsignalSIGKILLtimesleeperrorrv)r_ interfacer'r!pid_filera config_filedhcp_client_identifierinterface_dhclient_contenttmp_dirouterrrmissingppid daemonized_ pid_contentpidrrrr%s                 zIscDhclient.dhcp_discoveryc s dddtdD}g}fdd}d}t|D]n\}}||kr(qt|}|tdd vrod }t||d |krO|||t||d |Sd ||d |d} d ||d||} ||}n|tddvrd}t||d |kr|||t||d |Sd ||d |ddg} d ||d||} ||}n|td dvrd}t||d |kr|||t||d |Sd ||d |dddg} d ||d||} ||}n|td d vrBd}t||d |kr|||t||d |Sd ||d |dgd} d ||d||} ||}n@|dkrxd}t||d |krd|||t||d |Sd} d ||d ||} ||}n t d||S| d| |f| fq|S)a 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 rccSsg|]}|r|qSrr)rtokrrr sz3IscDhclient.parse_static_routes..z[, .]csd|||f}t|dS)NzRFC3442 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)rr)cidrrequiredremainmsgrfc3442rr _trunc_errors  z5IscDhclient.parse_static_routes.._trunc_errorr! N.rEr{0)rrrz0.0.0.0zSParsed invalid net length "%s". Verify DHCP rfc3442-classless-static-routes value.z%s/%s) rstriprfrl enumeraterrrir5rrro) rtokens static_routesr current_idxidxr net_lengthreq_toks net_addressgatewayrrrparse_static_routesjsx !     "    zIscDhclient.parse_static_routescCsHgd}|D]}tj|r!tt|dkr!td||SqdS)N)z/var/lib/dhclientz /var/lib/dhcpz/var/lib/NetworkManagerrzUsing %s lease directory)r0r1existsrir3rr)supported_dirsdrrrget_dhclient_ds zIscDhclient.get_dhclient_dcCsz|durt}|s dSt|}d}d}|D]#}|drq|ds%qtj||}tj|}||kr:|}|}q|S)N dhclient6)z.leasez.leases) rYrr0r3 startswithendswithr1r5getmtime)lease_d lease_files latest_mtime latest_filefnameabs_pathmtimerrrget_latest_leases&    zIscDhclient.get_latest_leasecCsvt|d,}|D] }d|vr(|dd}t|dkr(|d}td||}qWd|S1s4wY|S)Nrzdhcp-server-identifierz ; rerzFound DHCP identifier %s)openrmrlrirr)rafdruwordsdhcptoklatest_addressrrr!parse_dhcp_server_from_lease_files    z-IscDhclient.parse_dhcp_server_from_lease_fileNNr~)rrrrr` staticmethodrXrrrrvr%rrrrrrrrrYs  $ v j   rYc@seZdZdZddZdS)DhcpcddhcpcdcCstd)NzDhcpcd not yet implemented)rr^rrrr`szDhcpcd.__init__N)rrrrr`rrrrrs rc@s&eZdZdZddZ  dddZdS)UdhcpcudhcpccCr[)Nrz3Skip udhcpc configuration: No udhcpc command found.)rr\ udhcpc_pathrrrr^rrrr`s  zUdhcpc.__init__Nc Cstd|tjdd}tj||d}tt  t |Wdn1s*wY|j |tj|d}t |td|jdd d |d |d d ddg }t|rht|dd}|dd|ddgztj|d|idd\} } Wntjy} ztd| j| j| jt| d} ~ ww|dur|| | t t |} | d} | rddt| ddd| dddD| d<| gS)asRun udhcpc on the interface without scripts or filesystem artifacts. @param interface: Name of the network interface on which to run udhcpc. @param dhcp_log_func: A callable accepting the udhcpc output and error streams. @return: A list of dicts of representing the dhcp leases parsed from the udhcpc lease file. rwTryz .lease.jsonN udhcpc_scriptiz-O staticroutesz-iz-sz-nz-qz-fz-v)ethernet_formatz-xz0x3d:%s:rC LEASE_FILE) update_envcapturez1udhcpc exited with code: %s stderr: %r stdout: %rrcSsg|]}|qSrr)rirrrrjsz)Udhcpc.dhcp_discovery..rrE)rrrrr0r1r5rrrrKrrrr UDHCPC_SCRIPTrr r extendrnrrrrrr load_jsonr4rlzip)r_rr'r!rrarcmdrrrr lease_jsonrrrrr%!sf         zUdhcpc.dhcp_discoveryr)rrrrr`r%rrrrrs  rrr~).abcrrJloggingr0rfrriortypingrrrr+ cloudinitrrr cloudinit.netr r r r r getLoggerrrr/r Exceptionrrrrrr$r(r.r9rAABCrBrYrrrrrrs@  !   L