X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=xenserver%2Fopt_xensource_libexec_InterfaceReconfigure.py;h=68f7204cb52f5b26c9ef039c624ba68750fe9d94;hb=303708cc8417959bbb7662fa52e0761a48bacbb1;hp=33f541a103b4c2ee3f9db3d750f4c60910b19589;hpb=13ffee26f10b94feb49bdd941b132d11df846dce;p=openvswitch diff --git a/xenserver/opt_xensource_libexec_InterfaceReconfigure.py b/xenserver/opt_xensource_libexec_InterfaceReconfigure.py index 33f541a1..68f7204c 100644 --- a/xenserver/opt_xensource_libexec_InterfaceReconfigure.py +++ b/xenserver/opt_xensource_libexec_InterfaceReconfigure.py @@ -10,18 +10,41 @@ # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Lesser General Public License for more details. # +import sys import syslog import os from xml.dom.minidom import getDOMImplementation from xml.dom.minidom import parse as parseXML +the_root_prefix = "" +def root_prefix(): + """Returns a string to prefix to all file name references, which + is useful for testing.""" + return the_root_prefix +def set_root_prefix(prefix): + global the_root_prefix + the_root_prefix = prefix + +log_destination = "syslog" +def get_log_destination(): + """Returns the current log destination. + 'syslog' means "log to syslog". + 'stderr' means "log to stderr".""" + return log_destination +def set_log_destination(dest): + global log_destination + log_destination = dest + # # Logging. # def log(s): - syslog.syslog(s) + if get_log_destination() == 'syslog': + syslog.syslog(s) + else: + print >>sys.stderr, s # # Exceptions. @@ -38,7 +61,7 @@ class Error(Exception): def run_command(command): log("Running command: " + ' '.join(command)) - rc = os.spawnl(os.P_WAIT, command[0], *command) + rc = os.spawnl(os.P_WAIT, root_prefix() + command[0], *command) if rc != 0: log("Command failed %d: " % rc + ' '.join(command)) return False @@ -218,20 +241,27 @@ def _strlist_from_xml(n, ltag, itag): ret.append(_str_from_xml(n)) return ret -def _otherconfig_to_xml(xml, parent, val, attrs): - otherconfig = xml.createElement("other_config") - parent.appendChild(otherconfig) +def _map_to_xml(xml, parent, tag, val, attrs): + e = xml.createElement(tag) + parent.appendChild(e) for n,v in val.items(): - if not n in attrs: - raise Error("Unknown other-config attribute: %s" % n) - _str_to_xml(xml, otherconfig, n, v) -def _otherconfig_from_xml(n, attrs): + if n in attrs: + _str_to_xml(xml, e, n, v) + else: + log("Unknown other-config attribute: %s" % n) + +def _map_from_xml(n, attrs): ret = {} for n in n.childNodes: if n.nodeName in attrs: ret[n.nodeName] = _str_from_xml(n) return ret +def _otherconfig_to_xml(xml, parent, val, attrs): + return _map_to_xml(xml, parent, "other_config", val, attrs) +def _otherconfig_from_xml(n, attrs): + return _map_from_xml(n, attrs) + # # Definitions of the database objects (and their attributes) used by interface-reconfigure. # @@ -244,13 +274,16 @@ def _otherconfig_from_xml(n, attrs): _PIF_XML_TAG = "pif" _VLAN_XML_TAG = "vlan" +_TUNNEL_XML_TAG = "tunnel" _BOND_XML_TAG = "bond" _NETWORK_XML_TAG = "network" +_POOL_XML_TAG = "pool" _ETHTOOL_OTHERCONFIG_ATTRS = ['ethtool-%s' % x for x in 'autoneg', 'speed', 'duplex', 'rx', 'tx', 'sg', 'tso', 'ufo', 'gso' ] _PIF_OTHERCONFIG_ATTRS = [ 'domain', 'peerdns', 'defaultroute', 'mtu', 'static-routes' ] + \ - [ 'bond-%s' % x for x in 'mode', 'miimon', 'downdelay', 'updelay', 'use_carrier' ] + \ + [ 'bond-%s' % x for x in 'mode', 'miimon', 'downdelay', + 'updelay', 'use_carrier', 'hashing-algorithm' ] + \ _ETHTOOL_OTHERCONFIG_ATTRS _PIF_ATTRS = { 'uuid': (_str_to_xml,_str_from_xml), @@ -264,6 +297,10 @@ _PIF_ATTRS = { 'uuid': (_str_to_xml,_str_from_xml), 'VLAN_master_of': (_str_to_xml,_str_from_xml), 'VLAN_slave_of': (lambda x, p, t, v: _strlist_to_xml(x, p, 'VLAN_slave_of', 'master', v), lambda n: _strlist_from_xml(n, 'VLAN_slave_Of', 'master')), + 'tunnel_access_PIF_of': (lambda x, p, t, v: _strlist_to_xml(x, p, 'tunnel_access_PIF_of', 'pif', v), + lambda n: _strlist_from_xml(n, 'tunnel_access_PIF_of', 'pif')), + 'tunnel_transport_PIF_of': (lambda x, p, t, v: _strlist_to_xml(x, p, 'tunnel_transport_PIF_of', 'pif', v), + lambda n: _strlist_from_xml(n, 'tunnel_transport_PIF_of', 'pif')), 'ip_configuration_mode': (_str_to_xml,_str_from_xml), 'IP': (_str_to_xml,_str_from_xml), 'netmask': (_str_to_xml,_str_from_xml), @@ -285,22 +322,33 @@ _VLAN_ATTRS = { 'uuid': (_str_to_xml,_str_from_xml), 'untagged_PIF': (_str_to_xml,_str_from_xml), } +_TUNNEL_ATTRS = { 'uuid': (_str_to_xml,_str_from_xml), + 'access_PIF': (_str_to_xml,_str_from_xml), + 'transport_PIF': (_str_to_xml,_str_from_xml), + } _BOND_ATTRS = { 'uuid': (_str_to_xml,_str_from_xml), 'master': (_str_to_xml,_str_from_xml), 'slaves': (lambda x, p, t, v: _strlist_to_xml(x, p, 'slaves', 'slave', v), lambda n: _strlist_from_xml(n, 'slaves', 'slave')), } -_NETWORK_OTHERCONFIG_ATTRS = [ 'mtu', 'static-routes' ] + _ETHTOOL_OTHERCONFIG_ATTRS +_NETWORK_OTHERCONFIG_ATTRS = [ 'mtu', 'static-routes', 'vswitch-controller-fail-mode' ] + _ETHTOOL_OTHERCONFIG_ATTRS _NETWORK_ATTRS = { 'uuid': (_str_to_xml,_str_from_xml), 'bridge': (_str_to_xml,_str_from_xml), + 'MTU': (_str_to_xml,_str_from_xml), 'PIFs': (lambda x, p, t, v: _strlist_to_xml(x, p, 'PIFs', 'PIF', v), lambda n: _strlist_from_xml(n, 'PIFs', 'PIF')), 'other_config': (lambda x, p, t, v: _otherconfig_to_xml(x, p, v, _NETWORK_OTHERCONFIG_ATTRS), lambda n: _otherconfig_from_xml(n, _NETWORK_OTHERCONFIG_ATTRS)), } +_POOL_OTHERCONFIG_ATTRS = ['vswitch-controller-fail-mode'] + +_POOL_ATTRS = { 'other_config': (lambda x, p, t, v: _otherconfig_to_xml(x, p, v, _POOL_OTHERCONFIG_ATTRS), + lambda n: _otherconfig_from_xml(n, _POOL_OTHERCONFIG_ATTRS)), + } + # # Database Cache object # @@ -323,7 +371,7 @@ def db_init_from_xenapi(session): class DatabaseCache(object): def __read_xensource_inventory(self): - filename = "/etc/xensource-inventory" + filename = root_prefix() + "/etc/xensource-inventory" f = open(filename, "r") lines = [x.strip("\n") for x in f.readlines()] f.close() @@ -343,7 +391,12 @@ class DatabaseCache(object): continue self.__pifs[p] = {} for f in _PIF_ATTRS: - self.__pifs[p][f] = rec[f] + if f in [ "tunnel_access_PIF_of", "tunnel_transport_PIF_of" ] and f not in rec: + # XenServer 5.5 network records did not have + # these fields, so allow them to be missing. + pass + else: + self.__pifs[p][f] = rec[f] self.__pifs[p]['other_config'] = {} for f in _PIF_OTHERCONFIG_ATTRS: if not rec['other_config'].has_key(f): continue @@ -359,6 +412,16 @@ class DatabaseCache(object): for f in _VLAN_ATTRS: self.__vlans[v][f] = rec[f] + def __get_tunnel_records_from_xapi(self, session): + self.__tunnels = {} + for t in session.xenapi.tunnel.get_all(): + rec = session.xenapi.tunnel.get_record(t) + if not self.__pif_on_host(rec['transport_PIF']): + continue + self.__tunnels[t] = {} + for f in _TUNNEL_ATTRS: + self.__tunnels[t][f] = rec[f] + def __get_bond_records_from_xapi(self, session): self.__bonds = {} for b in session.xenapi.Bond.get_all(): @@ -378,6 +441,10 @@ class DatabaseCache(object): if f == "PIFs": # drop PIFs on other hosts self.__networks[n][f] = [p for p in rec[f] if self.__pif_on_host(p)] + elif f == "MTU" and f not in rec: + # XenServer 5.5 network records did not have an + # MTU field, so allow this to be missing. + pass else: self.__networks[n][f] = rec[f] self.__networks[n]['other_config'] = {} @@ -385,6 +452,20 @@ class DatabaseCache(object): if not rec['other_config'].has_key(f): continue self.__networks[n]['other_config'][f] = rec['other_config'][f] + def __get_pool_records_from_xapi(self, session): + self.__pools = {} + for p in session.xenapi.pool.get_all(): + rec = session.xenapi.pool.get_record(p) + + self.__pools[p] = {} + + for f in _POOL_ATTRS: + self.__pools[p][f] = rec[f] + + for f in _POOL_OTHERCONFIG_ATTRS: + if rec['other_config'].has_key(f): + self.__pools[p]['other_config'][f] = rec['other_config'][f] + def __to_xml(self, xml, parent, key, ref, rec, attrs): """Encode a database object as XML""" e = xml.createElement(key) @@ -431,6 +512,14 @@ class DatabaseCache(object): self.__get_pif_records_from_xapi(session, host) + try: + self.__get_tunnel_records_from_xapi(session) + except XenAPI.Failure, e: + error,details = e.details + if error == "MESSAGE_METHOD_UNKNOWN" and details == "tunnel.get_all": + pass + + self.__get_pool_records_from_xapi(session) self.__get_vlan_records_from_xapi(session) self.__get_bond_records_from_xapi(session) self.__get_network_records_from_xapi(session) @@ -440,11 +529,13 @@ class DatabaseCache(object): else: log("Loading xapi database cache from %s" % cache_file) - xml = parseXML(cache_file) + xml = parseXML(root_prefix() + cache_file) self.__pifs = {} self.__bonds = {} self.__vlans = {} + self.__pools = {} + self.__tunnels = {} self.__networks = {} assert(len(xml.childNodes) == 1) @@ -464,9 +555,15 @@ class DatabaseCache(object): elif n.nodeName == _VLAN_XML_TAG: (ref,rec) = self.__from_xml(n, _VLAN_ATTRS) self.__vlans[ref] = rec + elif n.nodeName == _TUNNEL_XML_TAG: + (ref,rec) = self.__from_xml(n, _TUNNEL_ATTRS) + self.__vlans[ref] = rec elif n.nodeName == _NETWORK_XML_TAG: (ref,rec) = self.__from_xml(n, _NETWORK_ATTRS) self.__networks[ref] = rec + elif n.nodeName == _POOL_XML_TAG: + (ref,rec) = self.__from_xml(n, _POOL_ATTRS) + self.__pools[ref] = rec else: raise Error("Unknown XML element %s" % n.nodeName) @@ -480,9 +577,13 @@ class DatabaseCache(object): self.__to_xml(xml, xml.documentElement, _BOND_XML_TAG, ref, rec, _BOND_ATTRS) for (ref,rec) in self.__vlans.items(): self.__to_xml(xml, xml.documentElement, _VLAN_XML_TAG, ref, rec, _VLAN_ATTRS) + for (ref,rec) in self.__tunnels.items(): + self.__to_xml(xml, xml.documentElement, _TUNNEL_XML_TAG, ref, rec, _TUNNEL_ATTRS) for (ref,rec) in self.__networks.items(): self.__to_xml(xml, xml.documentElement, _NETWORK_XML_TAG, ref, rec, _NETWORK_ATTRS) + for (ref,rec) in self.__pools.items(): + self.__to_xml(xml, xml.documentElement, _POOL_XML_TAG, ref, rec, _POOL_ATTRS) f = open(cache_file, 'w') f.write(xml.toprettyxml()) @@ -504,10 +605,21 @@ class DatabaseCache(object): filter(lambda (ref,rec): rec['device'] == device, self.__pifs.items())) + def get_networks_with_bridge(self, bridge): + return map(lambda (ref,rec): ref, + filter(lambda (ref,rec): rec['bridge'] == bridge, + self.__networks.items())) + + def get_network_by_bridge(self, bridge): + #Assumes one network has bridge. + try: + return self.get_networks_with_bridge(bridge)[0] + except KeyError: + return None + def get_pif_by_bridge(self, bridge): - networks = map(lambda (ref,rec): ref, - filter(lambda (ref,rec): rec['bridge'] == bridge, - self.__networks.items())) + networks = self.get_networks_with_bridge(bridge) + if len(networks) == 0: raise Error("No matching network \"%s\"" % bridge) @@ -558,6 +670,10 @@ class DatabaseCache(object): else: return None + def get_pool_record(self): + if len(self.__pools) > 0: + return self.__pools.values()[0] + # # # @@ -596,13 +712,33 @@ def ethtool_settings(oc): log("Invalid value for ethtool-%s = %s. Must be on|true|off|false." % (opt, val)) return settings,offload -def mtu_setting(oc): +# By default the MTU is taken from the Network.MTU setting for VIF, +# PIF and Bridge. However it is possible to override this by using +# {VIF,PIF,Network}.other-config:mtu. +# +# type parameter is a string describing the object that the oc parameter +# is from. e.g. "PIF", "Network" +def mtu_setting(nw, type, oc): + mtu = None + + nwrec = db().get_network_record(nw) + if nwrec.has_key('MTU'): + mtu = nwrec['MTU'] + else: + mtu = "1500" + if oc.has_key('mtu'): + log("Override Network.MTU setting on bridge %s from %s.MTU is %s" % \ + (nwrec['bridge'], type, mtu)) + mtu = oc['mtu'] + + if mtu is not None: try: - int(oc['mtu']) # Check that the value is an integer - return oc['mtu'] + int(mtu) # Check that the value is an integer + return mtu except ValueError, x: - log("Invalid value for mtu = %s" % oc['mtu']) + log("Invalid value for mtu = %s" % mtu) + return None # @@ -625,7 +761,7 @@ def pif_ipdev_name(pif): # def netdev_exists(netdev): - return os.path.exists("/sys/class/net/" + netdev) + return os.path.exists(root_prefix() + "/sys/class/net/" + netdev) def pif_netdev_name(pif): """Get the netdev name for a PIF.""" @@ -637,6 +773,34 @@ def pif_netdev_name(pif): else: return pifrec['device'] +# +# Bridges +# + +def pif_is_bridged(pif): + pifrec = db().get_pif_record(pif) + nwrec = db().get_network_record(pifrec['network']) + + if nwrec['bridge']: + # TODO: sanity check that nwrec['bridgeless'] != 'true' + return True + else: + # TODO: sanity check that nwrec['bridgeless'] == 'true' + return False + +def pif_bridge_name(pif): + """Return the bridge name of a pif. + + PIF must be a bridged PIF.""" + pifrec = db().get_pif_record(pif) + + nwrec = db().get_network_record(pifrec['network']) + + if nwrec['bridge']: + return nwrec['bridge'] + else: + raise Error("PIF %(uuid)s does not have a bridge name" % pifrec) + # # Bonded PIFs # @@ -714,6 +878,13 @@ def pif_get_vlan_masters(pif): vlans = [db().get_vlan_record(v) for v in pifrec['VLAN_slave_of']] return [v['untagged_PIF'] for v in vlans if v and db().pif_exists(v['untagged_PIF'])] +# +# Tunnel PIFs +# +def pif_is_tunnel(pif): + rec = db().get_pif_record(pif) + return rec.has_key('tunnel_access_PIF_of') and len(rec['tunnel_access_PIF_of']) > 0 + # # Datapath base class # @@ -727,6 +898,12 @@ class Datapath(object): def __init__(self, pif): self._pif = pif + @classmethod + def rewrite(cls): + """Class method called when write action is called. Can be used + to update any backend specific configuration.""" + pass + def configure_ipdev(self, cfg): """Write ifcfg TYPE field for an IPdev, plus any type specific fields to cfg @@ -774,11 +951,11 @@ class Datapath(object): """ raise NotImplementedError -def DatapathFactory(pif): +def DatapathFactory(): # XXX Need a datapath object for bridgeless PIFs try: - network_conf = open("/etc/xensource/network.conf", 'r') + network_conf = open(root_prefix() + "/etc/xensource/network.conf", 'r') network_backend = network_conf.readline().strip() network_conf.close() except Exception, e: @@ -786,9 +963,9 @@ def DatapathFactory(pif): if network_backend == "bridge": from InterfaceReconfigureBridge import DatapathBridge - return DatapathBridge(pif) - elif network_backend == "vswitch": + return DatapathBridge + elif network_backend in ["openvswitch", "vswitch"]: from InterfaceReconfigureVswitch import DatapathVswitch - return DatapathVswitch(pif) + return DatapathVswitch else: raise Error("unknown network backend %s" % network_backend)