+def get_netdev_mac(device):
+ try:
+ return read_first_line_of_file("/sys/class/net/%s/address" % device)
+ except:
+ # Probably no such device.
+ return None
+
+def get_netdev_tx_queue_len(device):
+ try:
+ return int(read_first_line_of_file("/sys/class/net/%s/tx_queue_len"
+ % device))
+ except:
+ # Probably no such device.
+ return None
+
+def get_netdev_by_mac(mac):
+ for device in os.listdir("/sys/class/net"):
+ dev_mac = get_netdev_mac(device)
+ if (dev_mac and mac.lower() == dev_mac.lower() and
+ get_netdev_tx_queue_len(device)):
+ return device
+ return None
+
+#
+# Helper functions for encoding/decoding database attributes to/from XML.
+#
+def str_to_xml(xml, parent, tag, val):
+ e = xml.createElement(tag)
+ parent.appendChild(e)
+ v = xml.createTextNode(val)
+ e.appendChild(v)
+def str_from_xml(n):
+ def getText(nodelist):
+ rc = ""
+ for node in nodelist:
+ if node.nodeType == node.TEXT_NODE:
+ rc = rc + node.data
+ return rc
+ return getText(n.childNodes).strip()
+
+
+def bool_to_xml(xml, parent, tag, val):
+ if val:
+ str_to_xml(xml, parent, tag, "True")
+ else:
+ str_to_xml(xml, parent, tag, "False")
+def bool_from_xml(n):
+ s = str_from_xml(n)
+ if s == "True":
+ return True
+ elif s == "False":
+ return False
+ else:
+ raise Error("Unknown boolean value %s" % s);
+
+def strlist_to_xml(xml, parent, ltag, itag, val):
+ e = xml.createElement(ltag)
+ parent.appendChild(e)
+ for v in val:
+ c = xml.createElement(itag)
+ e.appendChild(c)
+ cv = xml.createTextNode(v)
+ c.appendChild(cv)
+def strlist_from_xml(n, ltag, itag):
+ ret = []
+ for n in n.childNodes:
+ if n.nodeName == 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)
+ 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):
+ ret = {}
+ for n in n.childNodes:
+ if n.nodeName in attrs:
+ ret[n.nodeName] = str_from_xml(n)
+ return ret
+
+#
+# Definitions of the database objects (and their attributes) used by interface-reconfigure.
+#
+# Each object is defined by a dictionary mapping an attribute name in
+# the xapi database to a tuple containing two items:
+# - a function which takes this attribute and encodes it as XML.
+# - a function which takes XML and decocdes it into a value.
+#
+# other-config attributes are specified as a simple array of strings
+
+PIF_XML_TAG = "pif"
+VLAN_XML_TAG = "vlan"
+BOND_XML_TAG = "bond"
+NETWORK_XML_TAG = "network"
+
+ETHTOOL_OTHERCONFIG_ATTRS = ['ethtool-%s' % x for x in 'autoneg', 'speed', 'duplex', 'rx', 'tx', 'sg', 'tso', 'ufo', 'gso' ]
+
+PIF_ATTRS = { 'uuid': (str_to_xml,str_from_xml),
+ 'management': (bool_to_xml,bool_from_xml),
+ 'network': (str_to_xml,str_from_xml),
+ 'device': (str_to_xml,str_from_xml),
+ 'bond_master_of': (lambda x, p, t, v: strlist_to_xml(x, p, 'bond_master_of', 'slave', v),
+ lambda n: strlist_from_xml(n, 'bond_master_of', 'slave')),
+ 'bond_slave_of': (str_to_xml,str_from_xml),
+ 'VLAN': (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')),
+ 'ip_configuration_mode': (str_to_xml,str_from_xml),
+ 'IP': (str_to_xml,str_from_xml),
+ 'netmask': (str_to_xml,str_from_xml),
+ 'gateway': (str_to_xml,str_from_xml),
+ 'DNS': (str_to_xml,str_from_xml),
+ 'MAC': (str_to_xml,str_from_xml),
+ 'other_config': (lambda x, p, t, v: otherconfig_to_xml(x, p, v, PIF_OTHERCONFIG_ATTRS),
+ lambda n: otherconfig_from_xml(n, PIF_OTHERCONFIG_ATTRS)),
+
+ # Special case: We write the current value
+ # PIF.currently-attached to the cache but since it will
+ # not be valid when we come to use the cache later
+ # (i.e. after a reboot) we always read it as False.
+ 'currently_attached': (bool_to_xml, lambda n: False),
+ }
+
+PIF_OTHERCONFIG_ATTRS = [ 'domain', 'peerdns', 'defaultroute', 'mtu', 'static-routes' ] + \
+ [ 'bond-%s' % x for x in 'mode', 'miimon', 'downdelay', 'updelay', 'use_carrier' ] + \
+ ETHTOOL_OTHERCONFIG_ATTRS
+
+VLAN_ATTRS = { 'uuid': (str_to_xml,str_from_xml),
+ 'tagged_PIF': (str_to_xml,str_from_xml),
+ 'untagged_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_ATTRS = { 'uuid': (str_to_xml,str_from_xml),
+ 'bridge': (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)),
+ }
+
+NETWORK_OTHERCONFIG_ATTRS = [ 'mtu', 'static-routes' ] + ETHTOOL_OTHERCONFIG_ATTRS
+
projects / openvswitch / blobdiff