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# $Id$
# 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 notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND ARIN DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS. IN NO EVENT SHALL 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.
"""
Trivial RPKI up-down protocol root server, for testing. Not suitable
for production use. Overrides a bunch of method definitions from the
rpki.* classes in order to reuse as much code as possible.
Usage: python rootd.py [ { -c | --config } configfile ] [ { -h | --help } ]
Default configuration file is rootd.conf, override with --config option.
"""
import traceback, os, time, getopt, sys, lxml
import rpki.resource_set, rpki.up_down, rpki.left_right, rpki.x509
import rpki.https, rpki.config, rpki.cms, rpki.exceptions, rpki.relaxng
import rpki.sundial, rpki.log
rpki_subject_lifetime = rpki.sundial.timedelta(days = 30)
def get_subject_cert():
try:
x = rpki.x509.X509(Auto_file = rpki_subject_filename)
return x
except IOError:
return None
def set_subject_cert(cert):
f = open(rpki_subject_filename, "wb")
f.write(cert.get_DER())
f.close()
def del_subject_cert():
os.remove(rpki_subject_filename)
def stash_subject_pkcs10(pkcs10):
if rpki_pkcs10_filename:
f = open(rpki_pkcs10_filename, "wb")
f.write(pkcs10.get_DER())
f.close()
def compose_response(r_msg):
rc = rpki.up_down.class_elt()
rc.class_name = rootd_name
rc.cert_url = rpki.up_down.multi_uri(rootd_cert)
rc.from_resource_bag(rpki_issuer.get_3779resources())
rc.issuer = rpki_issuer
r_msg.payload.classes.append(rc)
rpki_subject = get_subject_cert()
if rpki_subject is not None:
rc.certs.append(rpki.up_down.certificate_elt())
rc.certs[0].cert_url = rpki.up_down.multi_uri(rootd_cert)
rc.certs[0].cert = rpki_subject
class list_pdu(rpki.up_down.list_pdu):
def serve_pdu(self, xxx1, q_msg, r_msg, xxx2):
r_msg.payload = rpki.up_down.list_response_pdu()
compose_response(r_msg)
class issue_pdu(rpki.up_down.issue_pdu):
def serve_pdu(self, xxx1, q_msg, r_msg, xxx2):
stash_subject_pkcs10(self.pkcs10)
self.pkcs10.check_valid_rpki()
r_msg.payload = rpki.up_down.issue_response_pdu()
rpki_subject = get_subject_cert()
if rpki_subject is None:
resources = rpki_issuer.get_3779resources()
rpki.log.info("Generating subject cert with resources " + str(resources))
req_key = self.pkcs10.getPublicKey()
req_sia = self.pkcs10.get_SIA()
crldp = rootd_base + rpki_issuer.gSKI() + ".crl"
set_subject_cert(rpki_issuer.issue(keypair = rpki_key,
subject_key = req_key,
serial = int(time.time()),
sia = req_sia,
aia = rootd_cert,
crldp = crldp,
resources = resources,
notAfter = rpki.sundial.now() + rpki_subject_lifetime))
now = rpki.sundial.now()
crl = rpki.x509.CRL.generate(
keypair = rpki_key,
issuer = rpki_issuer,
serial = 1,
thisUpdate = now,
nextUpdate = now + rpki_subject_lifetime,
revokedCertificates = ())
f = open(os.path.dirname(rpki_subject_filename) + "/" + rpki_issuer.gSKI() + ".crl", "wb")
f.write(crl.get_DER())
f.close()
compose_response(r_msg)
class revoke_pdu(rpki.up_down.revoke_pdu):
def serve_pdu(self, xxx1, q_msg, r_msg, xxx2):
rpki_subject = get_subject_cert()
if rpki_subject is None or rpki_subject.gSKI() != self.ski:
raise rpki.exceptions.NotInDatabase
del_subject_cert()
r_msg.payload = rpki.up_down.revoke_response_pdu()
r_msg.payload.class_name = self.class_name
r_msg.payload.ski = self.ski
class message_pdu(rpki.up_down.message_pdu):
name2type = {
"list" : list_pdu,
"list_response" : rpki.up_down.list_response_pdu,
"issue" : issue_pdu,
"issue_response" : rpki.up_down.issue_response_pdu,
"revoke" : revoke_pdu,
"revoke_response" : rpki.up_down.revoke_response_pdu,
"error_response" : rpki.up_down.error_response_pdu }
type2name = dict((v,k) for k,v in name2type.items())
class sax_handler(rpki.sax_utils.handler):
def create_top_level(self, name, attrs):
return message_pdu()
def up_down_handler(query, path):
try:
q_elt = rpki.cms.xml_verify(query, cms_ta)
rpki.relaxng.up_down.assertValid(q_elt)
q_msg = sax_handler.saxify(q_elt)
except Exception, data:
rpki.log.error(traceback.format_exc())
return 400, "Could not process PDU: %s" % data
try:
r_msg = q_msg.serve_top_level(None, None)
r_elt = r_msg.toXML()
try:
rpki.relaxng.up_down.assertValid(r_elt)
except lxml.etree.DocumentInvalid:
rpki.log.debug(lxml.etree.tostring(r_elt, pretty_print = True, encoding ="utf-8", xml_declaration = True))
raise
return 200, rpki.cms.xml_sign(r_elt, cms_key, cms_certs, encoding = "utf-8")
except Exception, data:
rpki.log.error(traceback.format_exc())
try:
r_msg = q_msg.serve_error(data)
r_elt = r_msg.toXML()
rpki.relaxng.up_down.assertValid(r_elt)
return 200, rpki.cms.xml_sign(r_elt, cms_key, cms_certs, encoding = "utf-8")
except Exception, data:
rpki.log.error(traceback.format_exc())
return 500, "Could not process PDU: %s" % data
os.environ["TZ"] = "UTC"
time.tzset()
rpki.log.init("rootd")
cfg_file = "rootd.conf"
opts,argv = getopt.getopt(sys.argv[1:], "c:h?", ["config=", "help"])
for o,a in opts:
if o in ("-h", "--help", "-?"):
print __doc__
sys.exit(0)
if o in ("-c", "--config"):
cfg_file = a
if argv:
raise RuntimeError, "Unexpected arguments %s" % argv
cfg = rpki.config.parser(cfg_file, "rootd")
cms_ta = rpki.x509.X509(Auto_file = cfg.get("cms-ta"))
cms_key = rpki.x509.RSA(Auto_file = cfg.get("cms-key"))
cms_certs = rpki.x509.X509_chain(Auto_files = cfg.multiget("cms-certs"))
https_key = rpki.x509.RSA(Auto_file = cfg.get("https-key"))
https_certs = rpki.x509.X509_chain(Auto_files = cfg.multiget("https-certs"))
https_server_host = cfg.get("server-host", "")
https_server_port = int(cfg.get("server-port"))
rpki_key = rpki.x509.RSA(Auto_file = cfg.get("rpki-key"))
rpki_issuer = rpki.x509.X509(Auto_file = cfg.get("rpki-issuer"))
rpki_subject_filename = cfg.get("rpki-subject-filename")
rpki_pkcs10_filename = cfg.get("rpki-pkcs10-filename", "")
rootd_name = cfg.get("rootd_name", "wombat")
rootd_base = cfg.get("rootd_base", "rsync://" + rootd_name + ".invalid/")
rootd_cert = cfg.get("rootd_cert", rootd_base + "rootd.cer")
rpki.https.server(privateKey = https_key,
certChain = https_certs,
host = https_server_host,
port = https_server_port,
handlers = up_down_handler)
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