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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.
"""
RPKI publication engine.
"""
import os
import re
import uuid
import time
import socket
import logging
import argparse
import rpki.resource_set
import rpki.x509
import rpki.config
import rpki.exceptions
import rpki.log
import rpki.publication
import rpki.publication_control
import rpki.daemonize
import rpki.http_simple
from lxml.etree import Element, SubElement
logger = logging.getLogger(__name__)
class main(object):
"""
Main program for pubd.
"""
def __init__(self):
os.environ.update(TZ = "UTC",
DJANGO_SETTINGS_MODULE = "rpki.django_settings.pubd")
time.tzset()
self.irbe_cms_timestamp = None
self.cfg = rpki.config.argparser(section = "pubd", 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,
"pubd.pid"),
help = "override default location of pid file")
self.cfg.add_argument("--profile",
default = "",
help = "enable profiling, saving data to PROFILE")
rpki.log.argparse_setup(self.cfg.argparser)
args = self.cfg.argparser.parse_args()
self.profile = args.profile
rpki.log.init("pubd", args)
self.cfg.set_global_flags()
if not args.foreground:
rpki.daemonize.daemon(pidfile = args.pidfile)
if self.profile:
import cProfile
prof = cProfile.Profile()
try:
prof.runcall(self.main)
finally:
prof.dump_stats(self.profile)
logger.info("Dumped profile data to %s", self.profile)
else:
self.main()
def main(self):
if self.profile:
logger.info("Running in profile mode with output to %s", self.profile)
import django
django.setup()
global rpki # pylint: disable=W0602
import rpki.pubdb # pylint: disable=W0621
self.bpki_ta = rpki.x509.X509(Auto_update = self.cfg.get("bpki-ta"))
self.irbe_cert = rpki.x509.X509(Auto_update = self.cfg.get("irbe-cert"))
self.pubd_cert = rpki.x509.X509(Auto_update = self.cfg.get("pubd-cert"))
self.pubd_key = rpki.x509.RSA( Auto_update = self.cfg.get("pubd-key"))
self.pubd_crl = rpki.x509.CRL( Auto_update = self.cfg.get("pubd-crl"))
self.http_server_host = self.cfg.get("server-host", "")
self.http_server_port = self.cfg.getint("server-port")
self.publication_base = self.cfg.get("publication-base", "publication/")
self.rrdp_base_uri = self.cfg.get("rrdp-base-uri", "https://%s/rrdp/" % socket.getfqdn())
self.rrdp_expiration_interval = rpki.sundial.timedelta.parse(self.cfg.get("rrdp-expiration-interval", "6h"))
self.rrdp_publication_base = self.cfg.get("rrdp-publication-base", "rrdp-publication/")
try:
self.session = rpki.pubdb.models.Session.objects.get()
except rpki.pubdb.models.Session.DoesNotExist:
self.session = rpki.pubdb.models.Session.objects.create(uuid = str(uuid.uuid4()), serial = 0)
rpki.http_simple.server(
host = self.http_server_host,
port = self.http_server_port,
handlers = (("/control", self.control_handler),
("/client/", self.client_handler)))
def control_handler(self, request, q_der):
"""
Process one PDU from the IRBE.
"""
from django.db import transaction, connection
try:
connection.cursor() # Reconnect to mysqld if necessary
q_cms = rpki.publication_control.cms_msg(DER = q_der)
q_msg = q_cms.unwrap((self.bpki_ta, self.irbe_cert))
self.irbe_cms_timestamp = q_cms.check_replay(self.irbe_cms_timestamp, "control")
if q_msg.get("type") != "query":
raise rpki.exceptions.BadQuery("Message type is %s, expected query" % q_msg.get("type"))
r_msg = Element(rpki.publication_control.tag_msg, nsmap = rpki.publication_control.nsmap,
type = "reply", version = rpki.publication_control.version)
try:
q_pdu = None
with transaction.atomic():
for q_pdu in q_msg:
if q_pdu.tag != rpki.publication_control.tag_client:
raise rpki.exceptions.BadQuery("PDU is %s, expected client" % q_pdu.tag)
client_handle = q_pdu.get("client_handle")
action = q_pdu.get("action")
if client_handle is None:
logger.info("Control %s request", action)
else:
logger.info("Control %s request for %s", action, client_handle)
if action in ("get", "list"):
if action == "get":
clients = rpki.pubdb.models.Client.objects.get(client_handle = client_handle),
else:
clients = rpki.pubdb.models.Client.objects.all()
for client in clients:
r_pdu = SubElement(r_msg, q_pdu.tag, action = action,
client_handle = client.client_handle, base_uri = client.base_uri)
if q_pdu.get("tag"):
r_pdu.set("tag", q_pdu.get("tag"))
SubElement(r_pdu, rpki.publication_control.tag_bpki_cert).text = client.bpki_cert.get_Base64()
if client.bpki_glue is not None:
SubElement(r_pdu, rpki.publication_control.tag_bpki_glue).text = client.bpki_glue.get_Base64()
if action in ("create", "set"):
if action == "create":
client = rpki.pubdb.models.Client(client_handle = client_handle)
else:
client = rpki.pubdb.models.Client.objects.get(client_handle = client_handle)
if q_pdu.get("base_uri"):
client.base_uri = q_pdu.get("base_uri")
bpki_cert = q_pdu.find(rpki.publication_control.tag_bpki_cert)
if bpki_cert is not None:
client.bpki_cert = rpki.x509.X509(Base64 = bpki_cert.text)
bpki_glue = q_pdu.find(rpki.publication_control.tag_bpki_glue)
if bpki_glue is not None:
client.bpki_glue = rpki.x509.X509(Base64 = bpki_glue.text)
if q_pdu.get("clear_replay_protection") == "yes":
client.last_cms_timestamp = None
client.save()
logger.debug("Stored client_handle %s, base_uri %s, bpki_cert %r, bpki_glue %r, last_cms_timestamp %s",
client.client_handle, client.base_uri, client.bpki_cert, client.bpki_glue,
client.last_cms_timestamp)
r_pdu = SubElement(r_msg, q_pdu.tag, action = action, client_handle = client_handle)
if q_pdu.get("tag"):
r_pdu.set("tag", q_pdu.get("tag"))
if action == "destroy":
rpki.pubdb.models.Client.objects.filter(client_handle = client_handle).delete()
r_pdu = SubElement(r_msg, q_pdu.tag, action = action, client_handle = client_handle)
if q_pdu.get("tag"):
r_pdu.set("tag", q_pdu.get("tag"))
except Exception as e:
logger.exception("Exception processing PDU %r action = %s client_handle = %s", q_pdu, q_pdu.get("action"), q_pdu.get("client_handle"))
r_pdu = SubElement(r_msg, rpki.publication_control.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"))
request.send_cms_response(rpki.publication_control.cms_msg().wrap(r_msg, self.pubd_key, self.pubd_cert))
except Exception as e:
logger.exception("Unhandled exception processing control query, path %r", request.path)
request.send_error(500, "Unhandled exception %s: %s" % (e.__class__.__name__, e))
client_url_regexp = re.compile("/client/([-A-Z0-9_/]+)$", re.I)
def client_handler(self, request, q_der):
"""
Process one PDU from a client.
"""
from django.db import transaction, connection
try:
connection.cursor() # Reconnect to mysqld if necessary
match = self.client_url_regexp.search(request.path)
if match is None:
raise rpki.exceptions.BadContactURL("Bad path: %s" % request.path)
client = rpki.pubdb.models.Client.objects.get(client_handle = match.group(1))
q_cms = rpki.publication.cms_msg(DER = q_der)
q_msg = q_cms.unwrap((self.bpki_ta, client.bpki_cert, client.bpki_glue))
client.last_cms_timestamp = q_cms.check_replay(client.last_cms_timestamp, client.client_handle)
client.save()
if q_msg.get("type") != "query":
raise rpki.exceptions.BadQuery("Message type is %s, expected query" % q_msg.get("type"))
r_msg = Element(rpki.publication.tag_msg, nsmap = rpki.publication.nsmap,
type = "reply", version = rpki.publication.version)
delta = None
try:
with transaction.atomic():
for q_pdu in q_msg:
if q_pdu.get("uri"):
logger.info("Client %s request for %s", q_pdu.tag, q_pdu.get("uri"))
else:
logger.info("Client %s request", q_pdu.tag)
if q_pdu.tag == rpki.publication.tag_list:
for obj in client.publishedobject_set.all():
r_pdu = SubElement(r_msg, q_pdu.tag, uri = obj.uri, hash = obj.hash)
if q_pdu.get("tag") is not None:
r_pdu.set("tag", q_pdu.get("tag"))
else:
assert q_pdu.tag in (rpki.publication.tag_publish, rpki.publication.tag_withdraw)
if delta is None:
delta = self.session.new_delta(rpki.sundial.now() + self.rrdp_expiration_interval)
client.check_allowed_uri(q_pdu.get("uri"))
if q_pdu.tag == rpki.publication.tag_publish:
der = q_pdu.text.decode("base64")
logger.info("Publishing %s", rpki.x509.uri_dispatch(q_pdu.get("uri"))(DER = der).tracking_data(q_pdu.get("uri")))
delta.publish(client, der, q_pdu.get("uri"), q_pdu.get("hash"))
else:
logger.info("Withdrawing %s", q_pdu.get("uri"))
delta.withdraw(client, q_pdu.get("uri"), q_pdu.get("hash"))
r_pdu = SubElement(r_msg, q_pdu.tag, uri = q_pdu.get("uri"))
if q_pdu.get("tag") is not None:
r_pdu.set("tag", q_pdu.get("tag"))
if delta is not None:
delta.activate(self.rrdp_publication_base)
self.session.expire_deltas()
except Exception as e:
if isinstance(e, (rpki.exceptions.ExistingObjectAtURI,
rpki.exceptions.DifferentObjectAtURI,
rpki.exceptions.NoObjectAtURI)):
logger.warn("Database synchronization error processing PDU %r hash %s uri %s: %s",
q_pdu, q_pdu.get("hash"), q_pdu.get("uri"), e)
else:
logger.exception("Exception processing PDU %r hash = %s uri = %s",
q_pdu, q_pdu.get("hash"), q_pdu.get("uri"))
r_pdu = SubElement(r_msg, rpki.publication.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"))
else:
if delta is not None:
self.session.synchronize_rrdp_files(self.rrdp_publication_base, self.rrdp_base_uri)
delta.update_rsync_files(self.publication_base)
request.send_cms_response(rpki.publication.cms_msg().wrap(r_msg, self.pubd_key, self.pubd_cert, self.pubd_crl))
except Exception as e:
logger.exception("Unhandled exception processing client query, path %r", request.path)
request.send_error(500, "Could not process PDU: %s" % e)
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