#!/usr/bin/python
-# Copyright (c) 2009, 2010, 2011 Nicira Networks
+# Copyright (c) 2009, 2010, 2011, 2012 Nicira Networks
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# - Set the "iface-id" key in the Interface table.
# - Set the fail-mode on internal bridges.
-import getopt
-import logging, logging.handlers
+import argparse
import os
import signal
-import subprocess
import sys
import time
import ovs.dirs
from ovs.db import error
from ovs.db import types
-import ovs.util
import ovs.daemon
import ovs.db.idl
-s_log = logging.getLogger("ovs-xapi-sync")
-vsctl="/usr/bin/ovs-vsctl"
+root_prefix = '' # Prefix for absolute file names, for testing.
+vlog = ovs.vlog.Vlog("ovs-xapi-sync")
session = None
force_run = False
+
# Set up a session to interact with XAPI.
#
# On system start-up, OVS comes up before XAPI, so we can't log into the
try:
session = XenAPI.xapi_local()
session.xenapi.login_with_password("", "")
- except:
+ except XenAPI.Failure, e:
session = None
- s_log.warning("Couldn't login to XAPI")
+ vlog.warn("Couldn't login to XAPI (%s)" % e)
return False
return True
+
def get_network_by_bridge(br_name):
if not init_session():
- s_log.warning("Failed to get bridge id %s because"
+ vlog.warn("Failed to get bridge id %s because"
" XAPI session could not be initialized" % br_name)
return None
return None
+
# By default, the "bridge-id" external id in the Bridge table is the
# same as "xs-network-uuids". This may be overridden by defining a
# "nicira-bridge-id" key in the "other_config" field of the network
return rec['other_config'].get('nicira-bridge-id', default)
return None
+
# By default, the "iface-id" external id in the Interface table is the
# same as "xs-vif-uuid". This may be overridden by defining a
# "nicira-iface-id" key in the "other_config" field of the VIF
return xs_vif_uuid
if not init_session():
- s_log.warning("Failed to get interface id %s because"
+ vlog.warn("Failed to get interface id %s because"
" XAPI session could not be initialized" % if_name)
return xs_vif_uuid
rec = session.xenapi.VIF.get_record(vif)
return rec['other_config'].get('nicira-iface-id', xs_vif_uuid)
except XenAPI.Failure:
- s_log.warning("Could not find XAPI entry for VIF %s" % if_name)
+ vlog.warn("Could not find XAPI entry for VIF %s" % if_name)
return xs_vif_uuid
-def call_vsctl(args):
- cmd = [vsctl, "--timeout=30", "-vANY:console:off"] + args
- exitcode = subprocess.call(cmd)
- if exitcode != 0:
- s_log.warning("Couldn't call ovs-vsctl")
def set_or_delete(d, key, value):
if value is None:
return True
return False
+
def set_external_id(row, key, value):
external_ids = row.external_ids
if set_or_delete(external_ids, key, value):
row.external_ids = external_ids
+
# XenServer does not call interface-reconfigure on internal networks,
# which is where the fail-mode would normally be set.
def update_fail_mode(row):
pools = session.xenapi.pool.get_all()
if len(pools) == 1:
prec = session.xenapi.pool.get_record(pools[0])
- fail_mode = prec['other_config'].get('vswitch-controller-fail-mode')
+ fail_mode = prec['other_config'].get(
+ 'vswitch-controller-fail-mode')
if fail_mode not in ['standalone', 'secure']:
fail_mode = 'standalone'
if row.fail_mode != fail_mode:
row.fail_mode = fail_mode
+
def update_in_band_mgmt(row):
rec = get_network_by_bridge(row.name)
if not rec:
other_config = row.other_config
if dib and dib not in ['true', 'false']:
- s_log.warning('"%s" isn\'t a valid setting for '
- "other_config:disable-in-band on %s" % (dib, row.name))
+ vlog.warn('"%s" isn\'t a valid setting for '
+ "other_config:disable-in-band on %s" % (dib, row.name))
elif set_or_delete(other_config, 'disable-in-band', dib):
row.other_config = other_config
+
def update_bridge_id(row):
id_ = get_bridge_id(row.name, row.external_ids.get("xs-network-uuids"))
if not id_:
set_external_id(row, "bridge-id", id_.split(";")[0])
+
def keep_table_columns(schema, table_name, columns):
table = schema.tables.get(table_name)
if not table:
table.columns = new_columns
return table
-def prune_schema(schema):
- string_type = types.Type(types.BaseType(types.StringType))
- string_map_type = types.Type(types.BaseType(types.StringType),
- types.BaseType(types.StringType),
- 0, sys.maxint)
+def prune_schema(schema):
new_tables = {}
new_tables["Bridge"] = keep_table_columns(
schema, "Bridge", ("name", "external_ids", "other_config",
schema, "Interface", ("name", "external_ids"))
schema.tables = new_tables
-def usage():
- print "usage: %s [OPTIONS] DATABASE" % sys.argv[0]
- print "where DATABASE is a socket on which ovsdb-server is listening."
- ovs.daemon.usage()
- print "Other options:"
- print " -h, --help display this help message"
- sys.exit(0)
def handler(signum, _):
global force_run
if (signum == signal.SIGHUP):
force_run = True
-def main(argv):
+
+def main():
global force_run
- l_handler = logging.handlers.RotatingFileHandler(
- "/var/log/openvswitch/ovs-xapi-sync.log")
- l_formatter = logging.Formatter('%(filename)s: %(levelname)s: %(message)s')
- l_handler.setFormatter(l_formatter)
- s_log.addHandler(l_handler)
- s_log.setLevel(logging.INFO)
+ parser = argparse.ArgumentParser()
+ parser.add_argument("database", metavar="DATABASE",
+ help="A socket on which ovsdb-server is listening.")
+ parser.add_argument("--root-prefix", metavar="DIR",
+ help="Use DIR as alternate root directory"
+ " (for testing).")
- try:
- options, args = getopt.gnu_getopt(
- argv[1:], 'h', ['help'] + ovs.daemon.LONG_OPTIONS)
- except getopt.GetoptError, geo:
- sys.stderr.write("%s: %s\n" % (ovs.util.PROGRAM_NAME, geo.msg))
- sys.exit(1)
-
- for key, value in options:
- if key in ['-h', '--help']:
- usage()
- elif not ovs.daemon.parse_opt(key, value):
- sys.stderr.write("%s: unhandled option %s\n"
- % (ovs.util.PROGRAM_NAME, key))
- sys.exit(1)
-
- if len(args) != 1:
- sys.stderr.write("%s: exactly one nonoption argument is required "
- "(use --help for help)\n" % ovs.util.PROGRAM_NAME)
- sys.exit(1)
-
- remote = args[0]
+ ovs.vlog.add_args(parser)
+ ovs.daemon.add_args(parser)
+ args = parser.parse_args()
+ ovs.vlog.handle_args(args)
+ ovs.daemon.handle_args(args)
+
+ global root_prefix
+ if args.root_prefix:
+ root_prefix = args.root_prefix
+
+ remote = args.database
schema_file = "%s/vswitch.ovsschema" % ovs.dirs.PKGDATADIR
schema = ovs.db.schema.DbSchema.from_json(ovs.json.from_file(schema_file))
prune_schema(schema)
# This daemon is usually started before XAPI, but to complete our
# tasks, we need it. Wait here until it's up.
- while not os.path.exists("/var/run/xapi_init_complete.cookie"):
+ cookie_file = root_prefix + "/var/run/xapi_init_complete.cookie"
+ while not os.path.exists(cookie_file):
time.sleep(1)
signal.signal(signal.SIGHUP, handler)
bridges = {} # Map from bridge name to xs_network_uuids
- interfaces = {} # Map from interface name to
+ iface_ids = {} # Map from xs-vif-uuid to iface-id
while True:
if not force_run and not idl.run():
poller = ovs.poller.Poller()
continue
if force_run:
- s_log.info("Forced to re-run as the result of a SIGHUP")
- bridges = {}
- interfaces = {}
- force_run = False
+ vlog.info("Forced to re-run as the result of a SIGHUP")
+ bridges = {}
+ iface_ids = {}
+ force_run = False
txn = ovs.db.idl.Transaction(idl)
# New bridge.
update_fail_mode(row)
update_in_band_mgmt(row)
- if new_xnu != old_xnu:
- # New bridge or bridge's xs-network-uuids has changed.
- update_bridge_id(row)
+
+ update_bridge_id(row)
new_bridges[row.name] = new_xnu
bridges = new_bridges
for row in idl.tables["Interface"].rows.itervalues():
iface_by_name[row.name] = row
- new_interfaces = {}
+ new_iface_ids = {}
for row in idl.tables["Interface"].rows.itervalues():
# Match up paired vif and tap devices.
if row.name.startswith("vif"):
for k in keys:
set_external_id(row, k, vif.external_ids.get(k))
- # If it's a new interface or its xs-vif-uuid has changed, then
- # obtain the iface-id from XAPI.
+ # Map from xs-vif-uuid to iface-id.
#
# (A tap's xs-vif-uuid comes from its vif. That falls out
# naturally from the copy loop above.)
- new_xvu = row.external_ids.get("xs-vif-uuid", "")
- old_xvu = interfaces.get(row.name)
- if old_xvu != new_xvu:
- iface_id = get_iface_id(row.name, new_xvu)
- if iface_id and row.external_ids.get("iface-id") != iface_id:
- set_external_id(row, "iface-id", iface_id)
+ xvu = row.external_ids.get("xs-vif-uuid")
+ if xvu:
+ iface_id = (new_iface_ids.get(xvu)
+ or iface_ids.get(xvu)
+ or get_iface_id(row.name, xvu))
+ new_iface_ids[xvu] = iface_id
+ else:
+ # No xs-vif-uuid therefore no iface-id.
+ iface_id = None
+ set_external_id(row, "iface-id", iface_id)
# When there's a vif and a tap, the tap is active (used for
# traffic). When there's just a vif, the vif is active.
set_external_id(vif, "iface-status", "active")
else:
set_external_id(row, "iface-status", None)
-
- new_interfaces[row.name] = new_xvu
- interfaces = new_interfaces
+ iface_ids = new_iface_ids
txn.commit_block()
+
if __name__ == '__main__':
try:
- main(sys.argv)
+ main()
except SystemExit:
# Let system.exit() calls complete normally
raise
except:
- s_log.exception("traceback")
+ vlog.exception("traceback")
sys.exit(ovs.daemon.RESTART_EXIT_CODE)
git://git.onelab.eu / sliver-openvswitch.git / blobdiff