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# $Id$
#
# Copyright (C) 2013--2014 Dragon Research Labs ("DRL")
# Portions copyright (C) 2009--2012 Internet Systems Consortium ("ISC")
# Portions copyright (C) 2007--2008 American Registry for Internet Numbers ("ARIN")
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notices and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND DRL, ISC, AND ARIN DISCLAIM ALL
# WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DRL,
# ISC, OR ARIN BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
"""
IR database daemon.
"""
import os
import time
import logging
import argparse
import rpki.http_simple
import rpki.config
import rpki.resource_set
import rpki.relaxng
import rpki.exceptions
import rpki.left_right
import rpki.log
import rpki.x509
import rpki.daemonize
from lxml.etree import Element, SubElement, tostring as ElementToString
logger = logging.getLogger(__name__)
class main(object):
# Whether to drop XMl into the log
debug = False
def handle_list_resources(self, q_pdu, r_msg):
tenant_handle = q_pdu.get("tenant_handle")
child_handle = q_pdu.get("child_handle")
child = rpki.irdb.models.Child.objects.get(issuer__handle = tenant_handle,
handle = child_handle)
resources = child.resource_bag
r_pdu = SubElement(r_msg, rpki.left_right.tag_list_resources,
tenant_handle = tenant_handle, child_handle = child_handle,
valid_until = child.valid_until.strftime("%Y-%m-%dT%H:%M:%SZ"))
for k, v in (("asn", resources.asn),
("ipv4", resources.v4),
("ipv6", resources.v6),
("tag", q_pdu.get("tag"))):
if v:
r_pdu.set(k, str(v))
def handle_list_roa_requests(self, q_pdu, r_msg):
tenant_handle = q_pdu.get("tenant_handle")
for request in rpki.irdb.models.ROARequest.objects.raw("""
SELECT irdb_roarequest.*
FROM irdb_roarequest, irdb_resourceholderca
WHERE irdb_roarequest.issuer_id = irdb_resourceholderca.id
AND irdb_resourceholderca.handle = %s
""", [tenant_handle]):
prefix_bag = request.roa_prefix_bag
r_pdu = SubElement(r_msg, rpki.left_right.tag_list_roa_requests,
tenant_handle = tenant_handle, asn = str(request.asn))
for k, v in (("ipv4", prefix_bag.v4),
("ipv6", prefix_bag.v6),
("tag", q_pdu.get("tag"))):
if v:
r_pdu.set(k, str(v))
def handle_list_ghostbuster_requests(self, q_pdu, r_msg):
tenant_handle = q_pdu.get("tenant_handle")
parent_handle = q_pdu.get("parent_handle")
ghostbusters = rpki.irdb.models.GhostbusterRequest.objects.filter(
issuer__handle = tenant_handle, parent__handle = parent_handle)
if ghostbusters.count() == 0:
ghostbusters = rpki.irdb.models.GhostbusterRequest.objects.filter(
issuer__handle = tenant_handle, parent = None)
for ghostbuster in ghostbusters:
r_pdu = SubElement(r_msg, q_pdu.tag,
tenant_handle = tenant_handle, parent_handle = parent_handle)
if q_pdu.get("tag"):
r_pdu.set("tag", q_pdu.get("tag"))
r_pdu.text = ghostbuster.vcard
def handle_list_ee_certificate_requests(self, q_pdu, r_msg):
tenant_handle = q_pdu.get("tenant_handle")
for ee_req in rpki.irdb.models.EECertificateRequest.objects.filter(
issuer__handle = tenant_handle):
resources = ee_req.resource_bag
r_pdu = SubElement(r_msg, q_pdu.tag, tenant_handle = tenant_handle, gski = ee_req.gski,
valid_until = ee_req.valid_until.strftime("%Y-%m-%dT%H:%M:%SZ"),
cn = ee_req.cn, sn = ee_req.sn)
for k, v in (("asn", resources.asn),
("ipv4", resources.v4),
("ipv6", resources.v6),
("eku", ee_req.eku),
("tag", q_pdu.get("tag"))):
if v:
r_pdu.set(k, str(v))
SubElement(r_pdu, rpki.left_right.tag_pkcs10).text = ee_req.pkcs10.get_Base64()
def handler(self, request, q_der):
try:
from django.db import connection
connection.cursor() # Reconnect to mysqld if necessary
self.start_new_transaction()
serverCA = rpki.irdb.models.ServerCA.objects.get()
rpkid = serverCA.ee_certificates.get(purpose = "rpkid")
irdbd = serverCA.ee_certificates.get(purpose = "irdbd")
q_cms = rpki.left_right.cms_msg(DER = q_der)
q_msg = q_cms.unwrap((serverCA.certificate, rpkid.certificate))
self.cms_timestamp = q_cms.check_replay(self.cms_timestamp, request.path)
if self.debug:
logger.debug("Received: %s", ElementToString(q_msg))
if q_msg.get("type") != "query":
raise rpki.exceptions.BadQuery("Message type is {}, expected query".format(
q_msg.get("type")))
r_msg = Element(rpki.left_right.tag_msg, nsmap = rpki.left_right.nsmap,
type = "reply", version = rpki.left_right.version)
try:
for q_pdu in q_msg:
getattr(self, "handle_" + q_pdu.tag[len(rpki.left_right.xmlns):])(q_pdu, r_msg)
except Exception, e:
logger.exception("Exception processing PDU %r", q_pdu)
r_pdu = SubElement(r_msg, rpki.left_right.tag_report_error,
error_code = e.__class__.__name__)
r_pdu.text = str(e)
if q_pdu.get("tag") is not None:
r_pdu.set("tag", q_pdu.get("tag"))
if self.debug:
logger.debug("Sending: %s", ElementToString(r_msg))
request.send_cms_response(rpki.left_right.cms_msg().wrap(
r_msg, irdbd.private_key, irdbd.certificate))
except Exception, e:
logger.exception("Unhandled exception while processing HTTP request")
request.send_error(500, "Unhandled exception %s: %s" % (e.__class__.__name__, e))
def __init__(self, **kwargs):
global rpki # pylint: disable=W0602
os.environ.update(TZ = "UTC",
DJANGO_SETTINGS_MODULE = "rpki.django_settings.irdb")
time.tzset()
self.cfg = rpki.config.argparser(section = "irdbd", doc = __doc__)
self.cfg.add_boolean_argument("--foreground",
default = False,
help = "whether to daemonize")
self.cfg.add_argument("--pidfile",
default = os.path.join(rpki.daemonize.default_pid_directory,
"irdbd.pid"),
help = "override default location of pid file")
self.cfg.add_argument("--profile",
default = "",
help = "enable profiling, saving data to PROFILE")
self.cfg.add_logging_arguments()
args = self.cfg.argparser.parse_args()
self.cfg.configure_logging(args = args, ident = "irdbd")
try:
self.cfg.set_global_flags()
self.cms_timestamp = None
if not args.foreground:
rpki.daemonize.daemon(pidfile = args.pidfile)
if args.profile:
import cProfile
prof = cProfile.Profile()
try:
prof.runcall(self.main)
finally:
prof.dump_stats(args.profile)
logger.info("Dumped profile data to %s", args.profile)
else:
self.main()
except:
logger.exception("Unandled exception in rpki.irdbd.main()")
sys.exit(1)
def main(self):
startup_msg = self.cfg.get("startup-message", "")
if startup_msg:
logger.info(startup_msg)
# Now that we know which configuration file to use, it's OK to
# load modules that require Django's settings module.
import django
django.setup()
global rpki # pylint: disable=W0602
import rpki.irdb # pylint: disable=W0621
self.http_server_host = self.cfg.get("server-host", "")
self.http_server_port = self.cfg.getint("server-port")
rpki.http_simple.server(
host = self.http_server_host,
port = self.http_server_port,
handlers = self.handler)
def start_new_transaction(self):
# Entirely too much fun with read-only access to transactional databases.
#
# http://stackoverflow.com/questions/3346124/how-do-i-force-django-to-ignore-any-caches-and-reload-data
# http://devblog.resolversystems.com/?p=439
# http://groups.google.com/group/django-users/browse_thread/thread/e25cec400598c06d
# http://stackoverflow.com/questions/1028671/python-mysqldb-update-query-fails
# http://dev.mysql.com/doc/refman/5.0/en/set-transaction.html
#
# It turns out that MySQL is doing us a favor with this weird
# transactional behavior on read, because without it there's a
# race condition if multiple updates are committed to the IRDB
# while we're in the middle of processing a query. Note that
# proper transaction management by the committers doesn't protect
# us, this is a transactional problem on read. So we need to use
# explicit transaction management. Since irdbd is a read-only
# consumer of IRDB data, this means we need to commit an empty
# transaction at the beginning of processing each query, to reset
# the transaction isolation snapshot.
import django.db.transaction
with django.db.transaction.atomic():
#django.db.transaction.commit()
pass
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