Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
diff -r 4805599e2732 -r 4850b1b8edc6 scripts/interface-reconfigure
--- a/scripts/interface-reconfigure Fri Dec 18 14:16:32 2009 +0000
+++ b/scripts/interface-reconfigure Fri Dec 18 14:16:32 2009 +0000
@@ -30,7 +30,7 @@
--mode=static --ip=<IPADDR> --netmask=<NM> [--gateway=<GW>]
Options:
- --session A session reference to use to access the xapi DB
+ --session A session reference to use to access the xapi DB
--pif A PIF reference within the session.
--pif-uuid The UUID of a PIF.
--force An interface name.
@@ -81,18 +81,18 @@
__STATE = {"OPEN":"OPEN",
"NOT-APPLIED":"NOT-APPLIED", "APPLIED":"APPLIED",
"REVERTED":"REVERTED", "COMMITTED": "COMMITTED"}
-
+
def __init__(self, path):
dirname,basename = os.path.split(path)
-
+
self.__state = self.__STATE['OPEN']
self.__children = []
-
+
self.__path = os.path.join(dirname, basename)
self.__oldpath = os.path.join(dirname, "." + basename + ".xapi-old")
self.__newpath = os.path.join(dirname, "." + basename + ".xapi-new")
self.__unlink = False
-
+
self.__f = open(self.__newpath, "w")
def attach_child(self, child):
@@ -106,7 +106,7 @@
return open(self.path()).readlines()
except:
return ""
-
+
def write(self, args):
if self.__state != self.__STATE['OPEN']:
raise Error("Attempt to write to file in state %s" % self.__state)
@@ -118,11 +118,11 @@
self.__unlink = True
self.__f.close()
self.__state = self.__STATE['NOT-APPLIED']
-
+
def close(self):
if self.__state != self.__STATE['OPEN']:
raise Error("Attempt to close file in state %s" % self.__state)
-
+
self.__f.close()
self.__state = self.__STATE['NOT-APPLIED']
@@ -155,7 +155,7 @@
if not self.__unlink:
os.link(self.__newpath, self.__path)
else:
- pass # implicit unlink of original file
+ pass # implicit unlink of original file
# Remove temporary file.
os.unlink(self.__newpath)
@@ -186,9 +186,9 @@
os.unlink(self.__oldpath)
# Leave .*.xapi-new as an aid to debugging.
-
+
self.__state = self.__STATE['REVERTED']
-
+
def commit(self):
if self.__state != self.__STATE['APPLIED']:
raise Error("Attempt to commit configuration from state %s" %
self.__state)
@@ -197,7 +197,7 @@
child.commit()
log("Committing changes to %s configuration" % self.__path)
-
+
if os.access(self.__oldpath, os.F_OK):
os.unlink(self.__oldpath)
if os.access(self.__newpath, os.F_OK):
@@ -231,7 +231,7 @@
if not os.path.exists(operstate):
log("No operstate for interface %s, assuming down" % i)
return 0
-
+
f = open(operstate)
state = f.read().strip()
f.close()
@@ -275,7 +275,7 @@
# Options for "ethtool -K"
offload = None
offload_opts = ["rx", "tx", "sg", "tso", "ufo", "gso"]
-
+
for opt in [opt for opt in setting_opts + offload_opts if
oc.has_key("ethtool-" + opt)]:
val = oc["ethtool-" + opt]
@@ -319,7 +319,7 @@
def configure_mtu(oc, f):
if not oc.has_key('mtu'):
return
-
+
try:
mtu = int(oc['mtu'])
f.write("MTU=%d\n" % mtu)
@@ -328,7 +328,7 @@
def configure_static_routes(interface, oc, f):
"""Open a route-<interface> file for static routes.
-
+
Opens the static routes configuration file for interface and writes one
line for each route specified in the network's other config
"static-routes" value.
E.g. if
@@ -354,7 +354,7 @@
for l in lines:
network, masklen, gateway = l.split('/')
child.write("%s/%s via %s dev %s\n" % (network, masklen, gateway,
interface))
-
+
f.attach_child(child)
child.close()
@@ -368,16 +368,16 @@
common options and returns the file object.
"""
f = ConfigurationFile("/etc/sysconfig/network-scripts/ifcfg-%s" %
interface)
-
+
f.write("# DO NOT EDIT: This file (%s) was autogenerated by %s\n" % \
(os.path.basename(f.path()), os.path.basename(sys.argv[0])))
f.write("XEMANAGED=yes\n")
f.write("DEVICE=%s\n" % interface)
f.write("ONBOOT=no\n")
-
+
return f
-def open_network_ifcfg(pif):
+def open_network_ifcfg(pif):
bridge = bridge_name(pif)
interface = interface_name(pif)
if bridge:
@@ -388,9 +388,9 @@
def open_pif_ifcfg(pif):
pifrec = db.get_pif_record(pif)
-
+
log("Configuring %s (%s)" % (interface_name(pif), pifrec['MAC']))
-
+
f = __open_ifcfg(interface_name(pif))
if pifrec.has_key('other_config'):
@@ -761,13 +761,13 @@
return self.__bonds[bond]
else:
return None
-
+
def get_vlan_record(self, vlan):
if self.__vlans.has_key(vlan):
return self.__vlans[vlan]
else:
return None
-
+
def bridge_name(pif):
"""Return the bridge name associated with pif, or None if network is
bridgeless"""
pifrec = db.get_pif_record(pif)
@@ -803,9 +803,9 @@
def load_bonding_driver():
log("Loading bonding driver")
os.spawnl(os.P_WAIT, "/sbin/modprobe", "/sbin/modprobe", "bonding")
- try:
+ try:
# bond_device_exists() uses the contents of sysfs_bonding_masters to
work out which devices
- # have already been created. Unfortunately the driver creates "bond0"
automatically at
+ # have already been created. Unfortunately the driver creates "bond0"
automatically at
# modprobe init. Get rid of this now or our accounting will go wrong.
f = open(sysfs_bonding_masters, "w")
f.write("-bond0")
@@ -817,7 +817,7 @@
lines = open("/proc/modules").read().split("\n")
modules = [line.split(" ")[0] for line in lines]
return "bonding" in modules
-
+
def bond_device_exists(name):
f = open(sysfs_bonding_masters, "r")
bonds = f.readline().split()
@@ -825,7 +825,7 @@
return name in bonds
def __create_bond_device(name):
-
+
if not bonding_driver_loaded():
load_bonding_driver()
@@ -833,7 +833,7 @@
log("bond master %s already exists, not creating" % name)
else:
log("Creating bond master %s" % name)
- try:
+ try:
f = open(sysfs_bonding_masters, "w")
f.write("+" + name)
f.close()
@@ -885,8 +885,8 @@
def configure_network(pif, f):
"""Write the configuration file for a network.
- Writes configuration derived from the network object into the relevant
- ifcfg file. The configuration file is passed in, but if the network is
+ Writes configuration derived from the network object into the relevant
+ ifcfg file. The configuration file is passed in, but if the network is
bridgeless it will be ifcfg-<interface>, otherwise it will be
ifcfg-<bridge>.
This routine may also write ifcfg files of the networks corresponding to
other PIFs
@@ -896,7 +896,7 @@
pif: Opaque_ref of pif
f : ConfigurationFile(/path/to/ifcfg) to which we append network
configuration
"""
-
+
pifrec = db.get_pif_record(pif)
nw = pifrec['network']
nwrec = db.get_network_record(nw)
@@ -913,7 +913,7 @@
configure_mtu(nwrec['other_config'], f)
configure_static_routes(device, nwrec['other_config'], f)
-
+
if pifrec.has_key('other_config'):
oc = pifrec['other_config']
@@ -927,7 +927,7 @@
f.write("BOOTPROTO=dhcp\n")
f.write("PERSISTENT_DHCLIENT=yes\n")
elif pifrec['ip_configuration_mode'] == "Static":
- f.write("BOOTPROTO=none\n")
+ f.write("BOOTPROTO=none\n")
f.write("NETMASK=%(netmask)s\n" % pifrec)
f.write("IPADDR=%(IP)s\n" % pifrec)
f.write("GATEWAY=%(gateway)s\n" % pifrec)
@@ -957,7 +957,7 @@
peerdns_pif = None
defaultroute_pif = None
-
+
# loop through all the pifs on this host looking for one with
# other-config:peerdns = true, and one with
# other-config:default-route=true
@@ -976,13 +976,13 @@
else:
log('Warning: multiple pifs with "defaultroute=true" -
choosing %s and ignoring %s' % \
(db.get_pif_record(defaultroute_pif)['device'],
__pifrec['device']))
-
+
# If no pif is explicitly specified then use the mgmt pif for
peerdns/defaultroute
if peerdns_pif == None:
peerdns_pif = management_pif
if defaultroute_pif == None:
defaultroute_pif = management_pif
-
+
# Update all the other network's ifcfg files and ensure consistency
for __pif in other_pifs_on_host:
__f = open_network_ifcfg(__pif)
@@ -1002,10 +1002,10 @@
else:
# There is no need to change this ifcfg file. So don't
attach_child.
pass
-
+
# ... and for this pif too
f.write('PEERDNS=%s\n' % ((pif == peerdns_pif) and 'yes' or 'no'))
-
+
# Update gatewaydev
fnetwork = ConfigurationFile("/etc/sysconfig/network")
for line in fnetwork.readlines():
@@ -1035,7 +1035,7 @@
pifrec = db.get_pif_record(pif)
f = open_pif_ifcfg(pif)
-
+
f.write("TYPE=Ethernet\n")
f.write("HWADDR=%(MAC)s\n" % pifrec)
@@ -1063,16 +1063,16 @@
def get_bond_slaves_of_pif(pif):
"""Returns a list of PIFs which make up the given bonded pif."""
-
+
pifrec = db.get_pif_record(pif)
bmo = pifrec['bond_master_of']
if len(bmo) > 1:
raise Error("Bond-master-of contains too many elements")
-
+
if len(bmo) == 0:
return []
-
+
bondrec = db.get_bond_record(bmo[0])
if not bondrec:
raise Error("No bond record for bond master PIF")
@@ -1080,7 +1080,7 @@
# build a list of slave's pifs
slave_pifs = bondrec['slaves']
- # Ensure any currently attached slaves are listed in the opposite order to
the order in
+ # Ensure any currently attached slaves are listed in the opposite order to
the order in
# which they were attached. The first slave attached must be the last
detached since
# the bond is using its MAC address.
try:
@@ -1091,7 +1091,7 @@
slave_pifs.remove(slave_pif)
slave_pifs.insert(0, slave_pif)
except IOError:
- pass
+ pass
return slave_pifs
@@ -1121,7 +1121,7 @@
f.attach_child(s)
# The bond option defaults
- bond_options = {
+ bond_options = {
"mode": "balance-slb",
"miimon": "100",
"downdelay": "200",
@@ -1145,7 +1145,7 @@
"""Find the PIF which is the VLAN slave of pif.
Returns the 'physical' PIF underneath the a VLAN PIF @pif."""
-
+
pifrec = db.get_pif_record(pif)
vlan = pifrec['VLAN_master_of']
@@ -1160,7 +1160,7 @@
def get_vlan_masters_of_pif(pif):
"""Returns a list of PIFs which are VLANs on top of the given pif."""
-
+
pifrec = db.get_pif_record(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'])]
@@ -1182,7 +1182,7 @@
f = open_pif_ifcfg(pif)
f.write("VLAN=yes\n")
f.attach_child(slave)
-
+
return f
def configure_pif(pif):
@@ -1237,14 +1237,14 @@
which are bond slaves of this one. This is because they will be
required when the bond is brought up."""
- rec = db.get_pif_record(pif)
+ rec = db.get_pif_record(pif)
interface = interface_name(pif)
bridge = bridge_name(pif)
if rec['VLAN'] != '-1':
log("bring_down_interface: %s is a VLAN" % interface)
ifdown(interface)
-
+
if destroy:
log("Destroy vlan device %s" % interface)
vconfig_rem(interface)
@@ -1257,7 +1257,7 @@
if db.get_pif_record(slave)['currently_attached']:
log("bring_down_interface: vlan slave is currently attached")
return
-
+
masters = get_vlan_masters_of_pif(slave)
masters = [m for m in masters if m != pif and
db.get_pif_record(m)['currently_attached']]
if len(masters) > 0:
@@ -1278,7 +1278,7 @@
interface = interface_name(pif)
# Need to bring down bond slaves first since the bond device
- # must be up to enslave/unenslave.
+ # must be up to enslave/unenslave.
bond_slaves = get_bond_slaves_of_pif(pif)
log("bond slaves of %s - %s" % (rec['device'], [interface_name(s) for s in
bond_slaves]))
for slave in bond_slaves:
@@ -1318,7 +1318,7 @@
"""
rec = db.get_pif_record(pif)
-
+
# VLAN on bond seems to need bond brought up explicitly, but VLAN
# on normal device does not. Might as well always bring it up.
if rec['VLAN'] != '-1':
@@ -1329,7 +1329,7 @@
interface = interface_name(pif)
create_bond_device(pif)
-
+
log("Bring interface %s up" % interface)
ifup(interface)
@@ -1338,7 +1338,7 @@
pifrec = db.get_pif_record(pif)
f = configure_pif(pif)
-
+
interface = interface_name(pif)
bridge = bridge_name(pif)
mode = pifrec['ip_configuration_mode']
@@ -1352,7 +1352,7 @@
else:
log("Configuring %s using %s configuration" % (interface, mode))
configure_network(pif, f)
-
+
f.close()
# if there is a bridge using this pif then bring it down
@@ -1383,17 +1383,17 @@
log("Unlinking stale file %s" % removed.path())
removed.unlink()
f.attach_child(removed)
-
+
# No masters left - now its safe to reconfigure the slave.
bring_down_interface(pif)
-
+
try:
f.apply()
bring_up_interface(pif)
if bridge:
bring_up_bridge(bridge)
-
+
# Update /etc/issue (which contains the IP address of the management
interface)
os.system("/sbin/update-issue")
@@ -1408,7 +1408,7 @@
log("failed to apply changes: %s" % e.msg)
f.revert()
raise
-
+
def action_down(pif):
bring_down_interface(pif, destroy=True)
@@ -1477,9 +1477,9 @@
log("%s returned %d" % (" ".join(args), rc))
# kill any dhclients previously started
run('/bin/sh','-c','/usr/bin/killall -9 dhclient; exit 0')
-
+
# Create list of bridges
- bridges = [ itf for itf in os.listdir('/sys/class/net/')
+ bridges = [ itf for itf in os.listdir('/sys/class/net/')
if os.path.exists('/sys/class/net/%s/bridge' % itf) ]
# Per bridge bringing down
@@ -1487,7 +1487,7 @@
# Detach from IP stack
run("/sbin/ip", "route", "flush", "dev", bridge, "table", "all")
run("/sbin/ip", "addr", "flush", "dev", bridge)
-
+
# Remove interfaces
brifs = [ itf for itf in os.listdir('/sys/class/net/%s/brif/' % bridge)
if not itf.startswith('vif') ]
@@ -1527,27 +1527,27 @@
if (os.path.exists('/sys/class/net/%s/ifindex' % itf) and
(itf != "lo") and
(not itf.startswith("vif")) and
- (not itf.startswith("xapi")) and
+ (not itf.startswith("xapi")) and
(not itf.startswith("xenbr")) and
- (not itf.startswith("sit")) and
+ (not itf.startswith("sit")) and
(not itf.startswith("ppp"))
)
]
for phys in physifs:
run("/sbin/ip", "route", "flush", "dev", phys, "table", "all")
run("/sbin/ip", "addr", "flush", "dev", phys)
- run("/sbin/ip", "link", "set", phys, "down")
+ run("/sbin/ip", "link", "set", phys, "down")
def main(argv=None):
global management_pif
-
+
session = None
pif_uuid = None
pif = None
force_interface = None
force_management = False
-
+
if argv is None:
argv = sys.argv
@@ -1566,7 +1566,7 @@
raise Usage(msg)
force_rewrite_config = {}
-
+
for o,a in arglist:
if o == "--pif":
pif = a
@@ -1586,7 +1586,7 @@
syslog.openlog(os.path.basename(argv[0]))
log("Called as " + str.join(" ", argv))
-
+
if len(args) < 1:
raise Usage("Required option <action> not present")
if len(args) > 1:
@@ -1668,7 +1668,7 @@
# Save cache.
db.save(dbcache_file)
-
+
except Usage, err:
print >>sys.stderr, err.msg
print >>sys.stderr, "For help use --help."
@@ -1676,7 +1676,7 @@
except Error, err:
log(err.msg)
return 1
-
+
return 0
if __name__ == "__main__":
@@ -1690,5 +1690,5 @@
log(exline)
syslog.closelog()
-
+
sys.exit(rc)
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