Per-project vpns, certificates, and revocation

CA/geninter.sh

@@ -16,16 +16,24 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-# ARG is the id of the user
+# $1 is the id of the project and $2 is the subject of the cert
-export SUBJ="/C=US/ST=California/L=MountainView/O=AnsoLabs/OU=NovaDev/CN=customer-intCA-$1"
+NAME=$1
-mkdir INTER/$1
+SUBJ=$2
-cd INTER/$1
+mkdir -p projects/$NAME
+cd projects/$NAME
 cp ../../openssl.cnf.tmpl openssl.cnf
-sed -i -e s/%USERNAME%/$1/g openssl.cnf
+sed -i -e s/%USERNAME%/$NAME/g openssl.cnf
 mkdir certs crl newcerts private
+openssl req -new -x509 -extensions v3_ca -keyout private/cakey.pem -out cacert.pem -days 365 -config ./openssl.cnf -batch -nodes
 echo "10" > serial
 touch index.txt
-openssl genrsa -out private/cakey.pem 1024 -config ./openssl.cnf -batch -nodes
+# NOTE(vish): Disabling intermediate ca's because we don't actually need them.
-openssl req -new -sha2 -key private/cakey.pem -out ../../reqs/inter$1.csr -batch -subj "$SUBJ"
+#             It makes more sense to have each project have its own root ca.
-cd ../../
+# openssl genrsa -out private/cakey.pem 1024 -config ./openssl.cnf -batch -nodes
-openssl ca -extensions v3_ca -days 365 -out INTER/$1/cacert.pem -in reqs/inter$1.csr -config openssl.cnf -batch
+# openssl req -new -sha256 -key private/cakey.pem -out ../../reqs/inter$NAME.csr -batch -subj "$SUBJ"
+openssl ca -gencrl -config ./openssl.cnf -out crl.pem
+if [ "`id -u`" != "`grep nova /etc/passwd | cut -d':' -f3`" ]; then
+    sudo chown -R nova:nogroup .
+fi
+# cd ../../
+# openssl ca -extensions v3_ca -days 365 -out INTER/$NAME/cacert.pem -in reqs/inter$NAME.csr -config openssl.cnf -batch

CA/genrootca.sh

@@ -25,4 +25,5 @@ else
     openssl req -new -x509 -extensions v3_ca -keyout private/cakey.pem -out cacert.pem -days 365 -config ./openssl.cnf -batch -nodes
     touch index.txt
     echo "10" > serial
+    openssl ca -gencrl -config ./openssl.cnf -out crl.pem
 fi

CA/openssl.cnf.tmpl

@@ -24,7 +24,6 @@ dir			= .
 
 [ ca ]
 default_ca		= CA_default
-unique_subject		= no
 
 [ CA_default ]
 serial			= $dir/serial
@@ -32,6 +31,8 @@ database		= $dir/index.txt
 new_certs_dir		= $dir/newcerts
 certificate		= $dir/cacert.pem
 private_key		= $dir/private/cakey.pem
+unique_subject		= no
+default_crl_days	= 365
 default_days		= 365
 default_md		= md5
 preserve		= no

bin/nova-manage

@@ -69,6 +69,7 @@ if os.path.exists(os.path.join(possible_topdir, 'nova', '__init__.py')):
     sys.path.insert(0, possible_topdir)
 
 from nova import context
+from nova import crypto
 from nova import db
 from nova import exception
 from nova import flags
@@ -93,32 +94,36 @@ class VpnCommands(object):
         self.manager = manager.AuthManager()
         self.pipe = pipelib.CloudPipe()
 
-    def list(self):
+    def list(self, project=None):
-        """Print a listing of the VPNs for all projects."""
+        """Print a listing of the VPN data for one or all projects.
+
+        args: [project=all]"""
         print "%-12s\t" % 'project',
         print "%-20s\t" % 'ip:port',
+        print "%-20s\t" % 'private_ip',
         print "%s" % 'state'
-        for project in self.manager.get_projects():
+        if project:
+            projects = [self.manager.get_project(project)]
+        else:
+            projects = self.manager.get_projects()
+        for project in projects:
             print "%-12s\t" % project.name,
-
+            ipport = "%s:%s" % (project.vpn_ip, project.vpn_port)
-            try:
+            print "%-20s\t" % ipport,
-                s = "%s:%s" % (project.vpn_ip, project.vpn_port)
-            except exception.NotFound:
-                s = "None"
-            print "%-20s\t" % s,
-
             vpn = self._vpn_for(project.id)
             if vpn:
+                net = 'down'
+                address = None
+                if vpn.get('fixed_ip', None):
+                    address = vpn['fixed_ip']['address']
                     command = "ping -c1 -w1 %s > /dev/null; echo $?"
-                out, _err = utils.execute(command % vpn['private_dns_name'],
+                    out, _err = utils.execute(command % address,
                                               check_exit_code=False)
                     if out.strip() == '0':
                         net = 'up'
-                else:
+                print address,
-                    net = 'down'
+                print vpn['host'],
-                print vpn['private_dns_name'],
+                print vpn['ec2_id'],
-                print vpn['node_name'],
-                print vpn['instance_id'],
                 print vpn['state_description'],
                 print net
 
@@ -127,11 +132,11 @@ class VpnCommands(object):
 
     def _vpn_for(self, project_id):
         """Get the VPN instance for a project ID."""
-        for instance in db.instance_get_all(context.get_admin_context()):
+        ctxt = context.get_admin_context()
+        for instance in db.instance_get_all_by_project(ctxt, project_id):
             if (instance['image_id'] == FLAGS.vpn_image_id
                 and not instance['state_description'] in
-                    ['shutting_down', 'shutdown']
+                    ['shutting_down', 'shutdown']):
-                and instance['project_id'] == project_id):
                 return instance
 
     def spawn(self):
@@ -146,6 +151,22 @@ class VpnCommands(object):
         """Start the VPN for a given project."""
         self.pipe.launch_vpn_instance(project_id)
 
+    def change(self, project_id, ip, port):
+        """Change the ip and port for a vpn.
+
+        args: project, ip, port"""
+        project = self.manager.get_project(project_id)
+        if not project:
+            print 'No project %s' % (project_id)
+            return
+        admin = context.get_admin_context()
+        network_ref = db.project_get_network(admin, project_id)
+        db.network_update(admin,
+                          network_ref['id'],
+                          {'vpn_public_address': ip,
+                           'vpn_public_port': int(port)})
+
+
 
 class ShellCommands(object):
     def bpython(self):
@@ -292,6 +313,14 @@ class UserCommands(object):
             is_admin = False
         self.manager.modify_user(name, access_key, secret_key, is_admin)
 
+    def revoke(self, user_id, project_id=None):
+        """revoke certs for a user
+        arguments: user_id [project_id]"""
+        if project_id:
+            crypto.revoke_certs_by_user_and_project(user_id, project_id)
+        else:
+            crypto.revoke_certs_by_user(user_id)
+
 
 class ProjectCommands(object):
     """Class for managing projects."""

nova/api/__init__.py

@@ -25,7 +25,6 @@ import webob.dec
 
 from nova import flags
 from nova import wsgi
-from nova.api import cloudpipe
 from nova.api import ec2
 from nova.api import openstack
 from nova.api.ec2 import metadatarequesthandler
@@ -74,7 +73,6 @@ class API(wsgi.Router):
             mapper.connect('%s/{path_info:.*}' % s, controller=mrh,
                            conditions=ec2api_subdomain)
 
-        mapper.connect("/cloudpipe/{path_info:.*}", controller=cloudpipe.API())
         super(API, self).__init__(mapper)
 
     @webob.dec.wsgify

nova/api/cloudpipe/__init__.py

@@ -1,69 +0,0 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
-# Copyright 2010 United States Government as represented by the
-# Administrator of the National Aeronautics and Space Administration.
-# All Rights Reserved.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-"""
-REST API Request Handlers for CloudPipe
-"""
-
-import logging
-import urllib
-import webob
-import webob.dec
-import webob.exc
-
-from nova import crypto
-from nova import wsgi
-from nova.auth import manager
-from nova.api.ec2 import cloud
-
-
-_log = logging.getLogger("api")
-_log.setLevel(logging.DEBUG)
-
-
-class API(wsgi.Application):
-
-    def __init__(self):
-        self.controller = cloud.CloudController()
-
-    @webob.dec.wsgify
-    def __call__(self, req):
-        if req.method == 'POST':
-            return self.sign_csr(req)
-        _log.debug("Cloudpipe path is %s" % req.path_info)
-        if req.path_info.endswith("/getca/"):
-            return self.send_root_ca(req)
-        return webob.exc.HTTPNotFound()
-
-    def get_project_id_from_ip(self, ip):
-        # TODO(eday): This was removed with the ORM branch, fix!
-        instance = self.controller.get_instance_by_ip(ip)
-        return instance['project_id']
-
-    def send_root_ca(self, req):
-        _log.debug("Getting root ca")
-        project_id = self.get_project_id_from_ip(req.remote_addr)
-        res = webob.Response()
-        res.headers["Content-Type"] = "text/plain"
-        res.body = crypto.fetch_ca(project_id)
-        return res
-
-    def sign_csr(self, req):
-        project_id = self.get_project_id_from_ip(req.remote_addr)
-        cert = self.str_params['cert']
-        return crypto.sign_csr(urllib.unquote(cert), project_id)

nova/auth/manager.py

@@ -64,12 +64,8 @@ flags.DEFINE_string('credential_key_file', 'pk.pem',
                     'Filename of private key in credentials zip')
 flags.DEFINE_string('credential_cert_file', 'cert.pem',
                     'Filename of certificate in credentials zip')
-flags.DEFINE_string('credential_rc_file', 'novarc',
+flags.DEFINE_string('credential_rc_file', '%src',
                     'Filename of rc in credentials zip')
-flags.DEFINE_string('credential_cert_subject',
-                    '/C=US/ST=California/L=MountainView/O=AnsoLabs/'
-                    'OU=NovaDev/CN=%s-%s',
-                    'Subject for certificate for users')
 flags.DEFINE_string('auth_driver', 'nova.auth.dbdriver.DbDriver',
                     'Driver that auth manager uses')
 
@@ -625,27 +621,37 @@ class AuthManager(object):
         with self.driver() as drv:
             drv.modify_user(uid, access_key, secret_key, admin)
 
-    def get_credentials(self, user, project=None):
+    def get_credentials(self, user, project=None, use_dmz=True):
         """Get credential zip for user in project"""
         if not isinstance(user, User):
             user = self.get_user(user)
         if project is None:
             project = user.id
         pid = Project.safe_id(project)
-        rc = self.__generate_rc(user.access, user.secret, pid)
+        private_key, signed_cert = crypto.generate_x509_cert(user.id, pid)
-        private_key, signed_cert = self._generate_x509_cert(user.id, pid)
 
         tmpdir = tempfile.mkdtemp()
         zf = os.path.join(tmpdir, "temp.zip")
         zippy = zipfile.ZipFile(zf, 'w')
-        zippy.writestr(FLAGS.credential_rc_file, rc)
+        if use_dmz and FLAGS.region_list:
+            regions = {}
+            for item in FLAGS.region_list:
+                region, _sep, region_host = item.partition("=")
+                regions[region] = region_host
+        else:
+            regions = {'nova': FLAGS.cc_host}
+        for region, host in regions.iteritems():
+            rc = self.__generate_rc(user.access,
+                                    user.secret,
+                                    pid,
+                                    use_dmz,
+                                    host)
+            zippy.writestr(FLAGS.credential_rc_file % region, rc)
+
         zippy.writestr(FLAGS.credential_key_file, private_key)
         zippy.writestr(FLAGS.credential_cert_file, signed_cert)
 
-        try:
         (vpn_ip, vpn_port) = self.get_project_vpn_data(project)
-        except exception.NotFound:
-            vpn_ip = None
         if vpn_ip:
             configfile = open(FLAGS.vpn_client_template, "r")
             s = string.Template(configfile.read())
@@ -656,10 +662,9 @@ class AuthManager(object):
                                   port=vpn_port)
             zippy.writestr(FLAGS.credential_vpn_file, config)
         else:
-            logging.warn("No vpn data for project %s" %
+            LOG.warn("No vpn data for project %s", pid)
-                                  pid)
 
-        zippy.writestr(FLAGS.ca_file, crypto.fetch_ca(user.id))
+        zippy.writestr(FLAGS.ca_file, crypto.fetch_ca(pid))
         zippy.close()
         with open(zf, 'rb') as f:
             read_buffer = f.read()
@@ -667,38 +672,38 @@ class AuthManager(object):
         shutil.rmtree(tmpdir)
         return read_buffer
 
-    def get_environment_rc(self, user, project=None):
+    def get_environment_rc(self, user, project=None, use_dmz=True):
         """Get credential zip for user in project"""
         if not isinstance(user, User):
             user = self.get_user(user)
         if project is None:
             project = user.id
         pid = Project.safe_id(project)
-        return self.__generate_rc(user.access, user.secret, pid)
+        return self.__generate_rc(user.access, user.secret, pid, use_dmz)
 
     @staticmethod
-    def __generate_rc(access, secret, pid):
+    def __generate_rc(access, secret, pid, use_dmz=True, host=None):
         """Generate rc file for user"""
+        if use_dmz:
+            cc_host = FLAGS.cc_dmz
+        else:
+            cc_host = FLAGS.cc_host
+        # NOTE(vish): Always use the dmz since it is used from inside the
+        #             instance
+        s3_host = FLAGS.s3_dmz
+        if host:
+            s3_host = host
+            cc_host = host
         rc = open(FLAGS.credentials_template).read()
         rc = rc % {'access': access,
                    'project': pid,
                    'secret': secret,
-                   'ec2': FLAGS.ec2_url,
+                   'ec2': '%s://%s:%s%s' % (FLAGS.ec2_prefix,
-                   's3': 'http://%s:%s' % (FLAGS.s3_host, FLAGS.s3_port),
+                                            cc_host,
+                                            FLAGS.cc_port,
+                                            FLAGS.ec2_suffix),
+                   's3': 'http://%s:%s' % (s3_host, FLAGS.s3_port),
                    'nova': FLAGS.ca_file,
                    'cert': FLAGS.credential_cert_file,
                    'key': FLAGS.credential_key_file}
         return rc
-
-    def _generate_x509_cert(self, uid, pid):
-        """Generate x509 cert for user"""
-        (private_key, csr) = crypto.generate_x509_cert(
-                self.__cert_subject(uid))
-        # TODO(joshua): This should be async call back to the cloud controller
-        signed_cert = crypto.sign_csr(csr, pid)
-        return (private_key, signed_cert)
-
-    @staticmethod
-    def __cert_subject(uid):
-        """Helper to generate cert subject"""
-        return FLAGS.credential_cert_subject % (uid, utils.isotime())

nova/cloudpipe/bootscript.sh

@@ -1,63 +0,0 @@
-#!/bin/bash
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
-# Copyright 2010 United States Government as represented by the
-# Administrator of the National Aeronautics and Space Administration.
-# All Rights Reserved.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-# This gets zipped and run on the cloudpipe-managed OpenVPN server
-
-export SUPERVISOR="http://10.255.255.1:8773/cloudpipe"
-export VPN_IP=`ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{print $1}'`
-export BROADCAST=`ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f3 | awk '{print $1}'`
-export DHCP_MASK=`ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f4 | awk '{print $1}'`
-export GATEWAY=`netstat -r | grep default | cut -d' ' -f10`
-export SUBJ="/C=US/ST=California/L=MountainView/O=AnsoLabs/OU=NovaDev/CN=customer-vpn-$VPN_IP"
-
-DHCP_LOWER=`echo $BROADCAST | awk -F. '{print $1"."$2"."$3"." $4 - 10 }'`
-DHCP_UPPER=`echo $BROADCAST | awk -F. '{print $1"."$2"."$3"." $4 - 1 }'`
-
-# generate a server DH
-openssl dhparam -out /etc/openvpn/dh1024.pem 1024
-
-# generate a server priv key
-openssl genrsa -out /etc/openvpn/server.key 2048
-
-# generate a server CSR
-openssl req -new -key /etc/openvpn/server.key -out /etc/openvpn/server.csr -batch -subj "$SUBJ"
-
-# URLEncode the CSR
-CSRTEXT=`cat /etc/openvpn/server.csr`
-CSRTEXT=$(python -c "import urllib; print urllib.quote('''$CSRTEXT''')")
-
-# SIGN the csr and save as server.crt
-# CURL fetch to the supervisor, POSTing the CSR text, saving the result as the CRT file
-curl --fail $SUPERVISOR -d "cert=$CSRTEXT" > /etc/openvpn/server.crt
-curl --fail $SUPERVISOR/getca/ > /etc/openvpn/ca.crt
-
-# Customize the server.conf.template
-cd /etc/openvpn
-
-sed -e s/VPN_IP/$VPN_IP/g server.conf.template > server.conf
-sed -i -e s/DHCP_SUBNET/$DHCP_MASK/g server.conf
-sed -i -e s/DHCP_LOWER/$DHCP_LOWER/g server.conf
-sed -i -e s/DHCP_UPPER/$DHCP_UPPER/g server.conf
-sed -i -e s/max-clients\ 1/max-clients\ 10/g server.conf
-
-echo "\npush \"route 10.255.255.1 255.255.255.255 $GATEWAY\"\n" >> server.conf
-echo "\npush \"route 10.255.255.253 255.255.255.255 $GATEWAY\"\n" >> server.conf
-echo "\nduplicate-cn\n" >> server.conf
-
-/etc/init.d/openvpn start

nova/cloudpipe/bootscript.template

@@ -0,0 +1,50 @@
+#!/bin/bash
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2010 United States Government as represented by the
+# Administrator of the National Aeronautics and Space Administration.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+# This gets zipped and run on the cloudpipe-managed OpenVPN server
+
+export VPN_IP=`ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{print $$1}'`
+export BROADCAST=`ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f3 | awk '{print $$1}'`
+export DHCP_MASK=`ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f4 | awk '{print $$1}'`
+export GATEWAY=`netstat -r | grep default | cut -d' ' -f10`
+
+DHCP_LOWER=`echo $$BROADCAST | awk -F. '{print $$1"."$$2"."$$3"." $$4 - ${num_vpn} }'`
+DHCP_UPPER=`echo $$BROADCAST | awk -F. '{print $$1"."$$2"."$$3"." $$4 - 1 }'`
+
+# generate a server DH
+openssl dhparam -out /etc/openvpn/dh1024.pem 1024
+
+cp crl.pem /etc/openvpn/
+cp server.key /etc/openvpn/
+cp ca.crt /etc/openvpn/
+cp server.crt /etc/openvpn/
+# Customize the server.conf.template
+cd /etc/openvpn
+
+sed -e s/VPN_IP/$$VPN_IP/g server.conf.template > server.conf
+sed -i -e s/DHCP_SUBNET/$$DHCP_MASK/g server.conf
+sed -i -e s/DHCP_LOWER/$$DHCP_LOWER/g server.conf
+sed -i -e s/DHCP_UPPER/$$DHCP_UPPER/g server.conf
+sed -i -e s/max-clients\ 1/max-clients\ 10/g server.conf
+
+echo "push \"route ${dmz_net} ${dmz_mask} $$GATEWAY\"" >> server.conf
+echo "duplicate-cn" >> server.conf
+echo "crl-verify /etc/openvpn/crl.pem" >> server.conf
+
+/etc/init.d/openvpn start

nova/cloudpipe/pipelib.py

@@ -22,13 +22,15 @@ an instance with it.
 
 """
 
-import base64
 import logging
 import os
+import string
 import tempfile
 import zipfile
 
 from nova import context
+from nova import crypto
+from nova import db
 from nova import exception
 from nova import flags
 from nova import utils
@@ -39,8 +41,17 @@ from nova.api.ec2 import cloud
 
 FLAGS = flags.FLAGS
 flags.DEFINE_string('boot_script_template',
-                    utils.abspath('cloudpipe/bootscript.sh'),
+                    utils.abspath('cloudpipe/bootscript.template'),
                     'Template for script to run on cloudpipe instance boot')
+flags.DEFINE_string('dmz_net',
+                    '10.0.0.0',
+                    'Network to push into openvpn config')
+flags.DEFINE_string('dmz_mask',
+                    '255.255.255.0',
+                    'Netmask to push into openvpn config')
+
+
+LOG = logging.getLogger('nova-cloudpipe')
 
 
 class CloudPipe(object):
@@ -48,64 +59,96 @@ class CloudPipe(object):
         self.controller = cloud.CloudController()
         self.manager = manager.AuthManager()
 
-    def launch_vpn_instance(self, project_id):
+    def get_encoded_zip(self, project_id):
-        logging.debug("Launching VPN for %s" % (project_id))
-        project = self.manager.get_project(project_id)
         # Make a payload.zip
         tmpfolder = tempfile.mkdtemp()
         filename = "payload.zip"
         zippath = os.path.join(tmpfolder, filename)
         z = zipfile.ZipFile(zippath, "w", zipfile.ZIP_DEFLATED)
-
+        shellfile = open(FLAGS.boot_script_template, "r")
-        z.write(FLAGS.boot_script_template, 'autorun.sh')
+        s = string.Template(shellfile.read())
+        shellfile.close()
+        boot_script = s.substitute(cc_dmz=FLAGS.cc_dmz,
+                                   cc_port=FLAGS.cc_port,
+                                   dmz_net=FLAGS.dmz_net,
+                                   dmz_mask=FLAGS.dmz_mask,
+                                   num_vpn=FLAGS.cnt_vpn_clients)
+        # genvpn, sign csr
+        crypto.generate_vpn_files(project_id)
+        z.writestr('autorun.sh', boot_script)
+        crl = os.path.join(crypto.ca_folder(project_id), 'crl.pem')
+        z.write(crl, 'crl.pem')
+        server_key = os.path.join(crypto.ca_folder(project_id), 'server.key')
+        z.write(server_key, 'server.key')
+        ca_crt = os.path.join(crypto.ca_path(project_id))
+        z.write(ca_crt, 'ca.crt')
+        server_crt = os.path.join(crypto.ca_folder(project_id), 'server.crt')
+        z.write(server_crt, 'server.crt')
         z.close()
-
-        key_name = self.setup_key_pair(project.project_manager_id, project_id)
         zippy = open(zippath, "r")
-        context = context.RequestContext(user=project.project_manager,
+        # NOTE(vish): run instances expects encoded userdata, it is decoded
-                                         project=project)
+        # in the get_metadata_call. autorun.sh also decodes the zip file,
+        # hence the double encoding.
+        encoded = zippy.read().encode("base64").encode("base64")
+        zippy.close()
+        return encoded
 
-        reservation = self.controller.run_instances(context,
+    def launch_vpn_instance(self, project_id):
-            # Run instances expects encoded userdata, it is decoded in the
+        LOG.debug("Launching VPN for %s" % (project_id))
-            # get_metadata_call. autorun.sh also decodes the zip file, hence
+        project = self.manager.get_project(project_id)
-            # the double encoding.
+        ctxt = context.RequestContext(user=project.project_manager,
-            user_data=zippy.read().encode("base64").encode("base64"),
+                                      project=project)
+        key_name = self.setup_key_pair(ctxt)
+        group_name = self.setup_security_group(ctxt)
+
+        reservation = self.controller.run_instances(ctxt,
+            user_data=self.get_encoded_zip(project_id),
             max_count=1,
             min_count=1,
             instance_type='m1.tiny',
             image_id=FLAGS.vpn_image_id,
             key_name=key_name,
-            security_groups=["vpn-secgroup"])
+            security_group=[group_name])
-        zippy.close()
 
-    def setup_key_pair(self, user_id, project_id):
+    def setup_security_group(self, context):
-        key_name = '%s%s' % (project_id, FLAGS.vpn_key_suffix)
+        group_name = '%s%s' % (context.project.id, FLAGS.vpn_key_suffix)
+        if db.security_group_exists(context, context.project.id, group_name):
+            return group_name
+        group = {'user_id': context.user.id,
+                 'project_id': context.project.id,
+                 'name': group_name,
+                 'description': 'Group for vpn'}
+        group_ref = db.security_group_create(context, group)
+        rule = {'parent_group_id': group_ref['id'],
+                'cidr': '0.0.0.0/0',
+                'protocol': 'udp',
+                'from_port': 1194,
+                'to_port': 1194}
+        db.security_group_rule_create(context, rule)
+        rule = {'parent_group_id': group_ref['id'],
+                'cidr': '0.0.0.0/0',
+                'protocol': 'icmp',
+                'from_port': -1,
+                'to_port': -1}
+        db.security_group_rule_create(context, rule)
+        # NOTE(vish): No need to trigger the group since the instance
+        #             has not been run yet.
+        return group_name
+
+    def setup_key_pair(self, context):
+        key_name = '%s%s' % (context.project.id, FLAGS.vpn_key_suffix)
         try:
-            private_key, fingerprint = self.manager.generate_key_pair(user_id,
+            result = cloud._gen_key(context, context.user.id, key_name)
-                                                                      key_name)
+            private_key = result['private_key']
             try:
-                key_dir = os.path.join(FLAGS.keys_path, user_id)
+                key_dir = os.path.join(FLAGS.keys_path, context.user.id)
                 if not os.path.exists(key_dir):
                     os.makedirs(key_dir)
-                file_name = os.path.join(key_dir, '%s.pem' % key_name)
+                key_path = os.path.join(key_dir, '%s.pem' % key_name)
-                with open(file_name, 'w') as f:
+                with open(key_path, 'w') as f:
                     f.write(private_key)
             except:
                 pass
         except exception.Duplicate:
             pass
         return key_name
-
-    # def setup_secgroups(self, username):
-    #     conn = self.euca.connection_for(username)
-    #     try:
-    #         secgroup = conn.create_security_group("vpn-secgroup",
-    #                                               "vpn-secgroup")
-    #         secgroup.authorize(ip_protocol = "udp", from_port = "1194",
-    #                            to_port = "1194", cidr_ip = "0.0.0.0/0")
-    #         secgroup.authorize(ip_protocol = "tcp", from_port = "80",
-    #                            to_port = "80", cidr_ip = "0.0.0.0/0")
-    #         secgroup.authorize(ip_protocol = "tcp", from_port = "22",
-    #                            to_port = "22", cidr_ip = "0.0.0.0/0")
-    #     except:
-    #         pass

nova/crypto.py

@@ -17,7 +17,7 @@
 #    under the License.
 
 """
-Wrappers around standard crypto, including root and intermediate CAs,
+Wrappers around standard crypto, including root and project CAs,
 SSH key_pairs and x509 certificates.
 """
 
@@ -33,28 +33,57 @@ import utils
 
 import M2Crypto
 
-from nova import exception
+from nova import context
+from nova import db
 from nova import flags
 
 
 FLAGS = flags.FLAGS
 flags.DEFINE_string('ca_file', 'cacert.pem', 'Filename of root CA')
+flags.DEFINE_string('key_file',
+                    os.path.join('private', 'cakey.pem'),
+                    'Filename of private key')
+flags.DEFINE_string('crl_file', 'crl.pem',
+                    'Filename of root Certificate Revokation List')
 flags.DEFINE_string('keys_path', utils.abspath('../keys'),
                     'Where we keep our keys')
 flags.DEFINE_string('ca_path', utils.abspath('../CA'),
                     'Where we keep our root CA')
-flags.DEFINE_boolean('use_intermediate_ca', False,
+flags.DEFINE_boolean('use_project_ca', False,
-                     'Should we use intermediate CAs for each project?')
+                     'Should we use a CA for each project?')
+flags.DEFINE_string('user_cert_subject',
+                    '/C=US/ST=California/L=MountainView/O=AnsoLabs/'
+                    'OU=NovaDev/CN=%s-%s-%s',
+                    'Subject for certificate for users, '
+                    '%s for project, user, timestamp')
+flags.DEFINE_string('project_cert_subject',
+                    '/C=US/ST=California/L=MountainView/O=AnsoLabs/'
+                    'OU=NovaDev/CN=project-ca-%s-%s',
+                    'Subject for certificate for projects, '
+                    '%s for project, timestamp')
+flags.DEFINE_string('vpn_cert_subject',
+                    '/C=US/ST=California/L=MountainView/O=AnsoLabs/'
+                    'OU=NovaDev/CN=project-vpn-%s-%s',
+                    'Subject for certificate for vpns, '
+                    '%s for project, timestamp')
 
 
-def ca_path(project_id):
+def ca_folder(project_id=None):
-    if project_id:
+    if FLAGS.use_project_ca and project_id:
-        return "%s/INTER/%s/cacert.pem" % (FLAGS.ca_path, project_id)
+        return os.path.join(FLAGS.ca_path, 'projects', project_id)
-    return "%s/cacert.pem" % (FLAGS.ca_path)
+    return FLAGS.ca_path
+
+
+def ca_path(project_id=None):
+    return os.path.join(ca_folder(project_id), FLAGS.ca_file)
+
+
+def key_path(project_id=None):
+    return os.path.join(ca_folder(project_id), FLAGS.key_file)
 
 
 def fetch_ca(project_id=None, chain=True):
-    if not FLAGS.use_intermediate_ca:
+    if not FLAGS.use_project_ca:
         project_id = None
     buffer = ""
     if project_id:
@@ -91,8 +120,8 @@ def generate_key_pair(bits=1024):
 
 
 def ssl_pub_to_ssh_pub(ssl_public_key, name='root', suffix='nova'):
-    pub_key_buffer = M2Crypto.BIO.MemoryBuffer(ssl_public_key)
+    buf = M2Crypto.BIO.MemoryBuffer(ssl_public_key)
-    rsa_key = M2Crypto.RSA.load_pub_key_bio(pub_key_buffer)
+    rsa_key = M2Crypto.RSA.load_pub_key_bio(buf)
     e, n = rsa_key.pub()
 
     key_type = 'ssh-rsa'
@@ -105,53 +134,137 @@ def ssl_pub_to_ssh_pub(ssl_public_key, name='root', suffix='nova'):
     return '%s %s %s@%s\n' % (key_type, b64_blob, name, suffix)
 
 
-def generate_x509_cert(subject, bits=1024):
+def revoke_cert(project_id, file_name):
+    """Revoke a cert by file name"""
+    start = os.getcwd()
+    os.chdir(ca_folder(project_id))
+    # NOTE(vish): potential race condition here
+    utils.execute("openssl ca -config ./openssl.cnf -revoke '%s'" % file_name)
+    utils.execute("openssl ca -gencrl -config ./openssl.cnf -out '%s'" %
+                  FLAGS.crl_file)
+    os.chdir(start)
+
+
+def revoke_certs_by_user(user_id):
+    """Revoke all user certs"""
+    admin = context.get_admin_context()
+    for cert in db.certificate_get_all_by_user(admin, user_id):
+        revoke_cert(cert['project_id'], cert['file_name'])
+
+
+def revoke_certs_by_project(project_id):
+    """Revoke all project certs"""
+    # NOTE(vish): This is somewhat useless because we can just shut down
+    #             the vpn.
+    admin = context.get_admin_context()
+    for cert in db.certificate_get_all_by_project(admin, project_id):
+        revoke_cert(cert['project_id'], cert['file_name'])
+
+
+def revoke_certs_by_user_and_project(user_id, project_id):
+    """Revoke certs for user in project"""
+    admin = context.get_admin_context()
+    for cert in db.certificate_get_all_by_user(admin, user_id, project_id):
+        revoke_cert(cert['project_id'], cert['file_name'])
+
+
+def _project_cert_subject(project_id):
+    """Helper to generate user cert subject"""
+    return FLAGS.project_cert_subject % (project_id, utils.isotime())
+
+
+def _vpn_cert_subject(project_id):
+    """Helper to generate user cert subject"""
+    return FLAGS.vpn_cert_subject % (project_id, utils.isotime())
+
+
+def _user_cert_subject(user_id, project_id):
+    """Helper to generate user cert subject"""
+    return FLAGS.user_cert_subject % (project_id, user_id, utils.isotime())
+
+
+def generate_x509_cert(user_id, project_id, bits=1024):
+    """Generate and sign a cert for user in project"""
+    subject = _user_cert_subject(user_id, project_id)
     tmpdir = tempfile.mkdtemp()
     keyfile = os.path.abspath(os.path.join(tmpdir, 'temp.key'))
     csrfile = os.path.join(tmpdir, 'temp.csr')
-    logging.debug("openssl genrsa -out %s %s" % (keyfile, bits))
+    utils.execute("openssl genrsa -out %s %s" % (keyfile, bits))
-    utils.runthis("Generating private key: %s",
+    utils.execute("openssl req -new -key %s -out %s -batch -subj %s" %
-                  "openssl genrsa -out %s %s" % (keyfile, bits))
-    utils.runthis("Generating CSR: %s",
-                  "openssl req -new -key %s -out %s -batch -subj %s" %
                   (keyfile, csrfile, subject))
     private_key = open(keyfile).read()
     csr = open(csrfile).read()
     shutil.rmtree(tmpdir)
-    return (private_key, csr)
+    (serial, signed_csr) = sign_csr(csr, project_id)
+    strserial = "%X" % serial
+    if(len(strserial) % 2):
+        strserial = "0%s" % strserial
+    fname = os.path.join(ca_folder(project_id), "newcerts/%s.pem" % strserial)
+    cert = {'user_id': user_id,
+            'project_id': project_id,
+            'file_name': fname}
+    db.certificate_create(context.get_admin_context(), cert)
+    return (private_key, signed_csr)
 
 
-def sign_csr(csr_text, intermediate=None):
+def _ensure_project_folder(project_id):
-    if not FLAGS.use_intermediate_ca:
+    if not os.path.exists(ca_path(project_id)):
-        intermediate = None
-    if not intermediate:
-        return _sign_csr(csr_text, FLAGS.ca_path)
-    user_ca = "%s/INTER/%s" % (FLAGS.ca_path, intermediate)
-    if not os.path.exists(user_ca):
         start = os.getcwd()
-        os.chdir(FLAGS.ca_path)
+        os.chdir(ca_folder())
-        utils.runthis("Generating intermediate CA: %s",
+        utils.execute("sh geninter.sh %s %s" %
-                      "sh geninter.sh %s" % (intermediate))
+                      (project_id, _project_cert_subject(project_id)))
         os.chdir(start)
-    return _sign_csr(csr_text, user_ca)
+
+
+def generate_vpn_files(project_id):
+    project_folder = ca_folder(project_id)
+    csr_fn = os.path.join(project_folder, "server.csr")
+    crt_fn = os.path.join(project_folder, "server.crt")
+
+    if os.path.exists(crt_fn):
+        return
+    _ensure_project_folder(project_id)
+    start = os.getcwd()
+    os.chdir(ca_folder())
+    # TODO(vish): the shell scripts could all be done in python
+    utils.execute("sh genvpn.sh %s %s" %
+                  (project_id, _vpn_cert_subject(project_id)))
+    with open(csr_fn, "r") as csrfile:
+        csr_text = csrfile.read()
+    (serial, signed_csr) = sign_csr(csr_text, project_id)
+    with open(crt_fn, "w") as crtfile:
+        crtfile.write(signed_csr)
+    os.chdir(start)
+
+
+def sign_csr(csr_text, project_id=None):
+    if not FLAGS.use_project_ca:
+        project_id = None
+    if not project_id:
+        return _sign_csr(csr_text, ca_folder())
+    _ensure_project_folder(project_id)
+    project_folder = ca_folder(project_id)
+    return _sign_csr(csr_text, ca_folder(project_id))
 
 
 def _sign_csr(csr_text, ca_folder):
     tmpfolder = tempfile.mkdtemp()
-    csrfile = open("%s/inbound.csr" % (tmpfolder), "w")
+    inbound = os.path.join(tmpfolder, "inbound.csr")
+    outbound = os.path.join(tmpfolder, "outbound.csr")
+    csrfile = open(inbound, "w")
     csrfile.write(csr_text)
     csrfile.close()
-    logging.debug("Flags path: %s" % ca_folder)
+    logging.debug("Flags path: %s", ca_folder)
     start = os.getcwd()
     # Change working dir to CA
     os.chdir(ca_folder)
-    utils.runthis("Signing cert: %s",
+    utils.execute("openssl ca -batch -out %s -config "
-                  "openssl ca -batch -out %s/outbound.crt "
+                  "./openssl.cnf -infiles %s" % (outbound, inbound))
-                  "-config ./openssl.cnf -infiles %s/inbound.csr" %
+    out, _err = utils.execute("openssl x509 -in %s -serial -noout" % outbound)
-                  (tmpfolder, tmpfolder))
+    serial = int(out.rpartition("=")[2])
     os.chdir(start)
-    with open("%s/outbound.crt" % (tmpfolder), "r") as crtfile:
+    with open(outbound, "r") as crtfile:
-        return crtfile.read()
+        return (serial, crtfile.read())
 
 
 def mkreq(bits, subject="foo", ca=0):
@@ -159,8 +272,7 @@ def mkreq(bits, subject="foo", ca=0):
     req = M2Crypto.X509.Request()
     rsa = M2Crypto.RSA.gen_key(bits, 65537, callback=lambda: None)
     pk.assign_rsa(rsa)
-    # Should not be freed here
+    rsa = None  # should not be freed here
-    rsa = None
     req.set_pubkey(pk)
     req.set_subject(subject)
     req.sign(pk, 'sha512')
@@ -224,7 +336,6 @@ def mkcacert(subject='nova', years=1):
 # IN THE SOFTWARE.
 # http://code.google.com/p/boto
 
-
 def compute_md5(fp):
     """
     @type fp: file

nova/db/api.py

@@ -117,6 +117,45 @@ def service_update(context, service_id, values):
 ###################
 
 
+def certificate_create(context, values):
+    """Create a certificate from the values dictionary."""
+    return IMPL.certificate_create(context, values)
+
+
+def certificate_destroy(context, certificate_id):
+    """Destroy the certificate or raise if it does not exist."""
+    return IMPL.certificate_destroy(context, certificate_id)
+
+
+def certificate_get_all_by_project(context, project_id):
+    """Get all certificates for a project."""
+    return IMPL.certificate_get_all_by_project(context, project_id)
+
+
+def certificate_get_all_by_user(context, user_id):
+    """Get all certificates for a user."""
+    return IMPL.certificate_get_all_by_user(context, user_id)
+
+
+def certificate_get_all_by_user_and_project(context, user_id, project_id):
+    """Get all certificates for a user and project."""
+    return IMPL.certificate_get_all_by_user_and_project(context,
+                                                        user_id,
+                                                        project_id)
+
+
+def certificate_update(context, certificate_id, values):
+    """Set the given properties on an certificate and update it.
+
+    Raises NotFound if service does not exist.
+
+    """
+    return IMPL.service_update(context, certificate_id, values)
+
+
+###################
+
+
 def floating_ip_allocate_address(context, host, project_id):
     """Allocate free floating ip and return the address.
 

nova/db/sqlalchemy/api.py

@@ -253,6 +253,84 @@ def service_update(context, service_id, values):
 ###################
 
 
+@require_admin_context
+def certificate_get(context, certificate_id, session=None):
+    if not session:
+        session = get_session()
+
+    result = session.query(models.Certificate).\
+                     filter_by(id=certificate_id).\
+                     filter_by(deleted=can_read_deleted(context)).\
+                     first()
+
+    if not result:
+        raise exception.NotFound('No certificate for id %s' % certificate_id)
+
+    return result
+
+
+@require_admin_context
+def certificate_create(context, values):
+    certificate_ref = models.Certificate()
+    for (key, value) in values.iteritems():
+        certificate_ref[key] = value
+    certificate_ref.save()
+    return certificate_ref
+
+
+@require_admin_context
+def certificate_destroy(context, certificate_id):
+    session = get_session()
+    with session.begin():
+        certificate_ref = certificate_get(context,
+                                          certificate_id,
+                                          session=session)
+        certificate_ref.delete(session=session)
+
+
+@require_admin_context
+def certificate_get_all_by_project(context, project_id):
+    session = get_session()
+    return session.query(models.Certificate).\
+                   filter_by(project_id=project_id).\
+                   filter_by(deleted=False).\
+                   all()
+
+
+@require_admin_context
+def certificate_get_all_by_user(context, user_id):
+    session = get_session()
+    return session.query(models.Certificate).\
+                   filter_by(user_id=user_id).\
+                   filter_by(deleted=False).\
+                   all()
+
+
+@require_admin_context
+def certificate_get_all_by_user_and_project(_context, user_id, project_id):
+    session = get_session()
+    return session.query(models.Certificate).\
+                   filter_by(user_id=user_id).\
+                   filter_by(project_id=project_id).\
+                   filter_by(deleted=False).\
+                   all()
+
+
+@require_admin_context
+def certificate_update(context, certificate_id, values):
+    session = get_session()
+    with session.begin():
+        certificate_ref = certificate_get(context,
+                                          certificate_id,
+                                          session=session)
+        for (key, value) in values.iteritems():
+            certificate_ref[key] = value
+        certificate_ref.save(session=session)
+
+
+###################
+
+
 @require_context
 def floating_ip_allocate_address(context, host, project_id):
     authorize_project_context(context, project_id)

nova/db/sqlalchemy/models.py

@@ -151,6 +151,16 @@ class Service(BASE, NovaBase):
     disabled = Column(Boolean, default=False)
 
 
+class Certificate(BASE, NovaBase):
+    """Represents a an x509 certificate"""
+    __tablename__ = 'certificates'
+    id = Column(Integer, primary_key=True)
+
+    user_id = Column(String(255))
+    project_id = Column(String(255))
+    file_name = Column(String(255))
+
+
 class Instance(BASE, NovaBase):
     """Represents a guest vm"""
     __tablename__ = 'instances'
@@ -521,7 +531,7 @@ def register_models():
     """Register Models and create metadata"""
     from sqlalchemy import create_engine
     models = (Service, Instance, Volume, ExportDevice, IscsiTarget, FixedIp,
-              FloatingIp, Network, SecurityGroup,
+              FloatingIp, Network, SecurityGroup, Certificate,
               SecurityGroupIngressRule, SecurityGroupInstanceAssociation,
               AuthToken, User, Project)  # , Image, Host
     engine = create_engine(FLAGS.sql_connection, echo=False)

nova/tests/auth_unittest.py

@@ -208,17 +208,13 @@ class AuthManagerTestCase(object):
         #             so it probably belongs in crypto_unittest
         #             but I'm leaving it where I found it.
         with user_and_project_generator(self.manager) as (user, project):
-            # NOTE(todd): Should mention why we must setup controller first
+            # NOTE(vish): Setup runs genroot.sh if it hasn't been run
-            #             (somebody please clue me in)
+            cloud.CloudController().setup()
-            cloud_controller = cloud.CloudController()
+            _key, cert_str = crypto.generate_x509_cert(user.id, project.id)
-            cloud_controller.setup()
-            _key, cert_str = self.manager._generate_x509_cert('test1',
-                                                              'testproj')
             logging.debug(cert_str)
 
-            # Need to verify that it's signed by the right intermediate CA
+            full_chain = crypto.fetch_ca(project_id=project.id, chain=True)
-            full_chain = crypto.fetch_ca(project_id='testproj', chain=True)
+            int_cert = crypto.fetch_ca(project_id=project.id, chain=False)
-            int_cert = crypto.fetch_ca(project_id='testproj', chain=False)
             cloud_cert = crypto.fetch_ca()
             logging.debug("CA chain:\n\n =====\n%s\n\n=====" % full_chain)
             signed_cert = X509.load_cert_string(cert_str)
@@ -227,7 +223,8 @@ class AuthManagerTestCase(object):
             cloud_cert = X509.load_cert_string(cloud_cert)
             self.assertTrue(signed_cert.verify(chain_cert.get_pubkey()))
             self.assertTrue(signed_cert.verify(int_cert.get_pubkey()))
-            if not FLAGS.use_intermediate_ca:
+
+            if not FLAGS.use_project_ca:
                 self.assertTrue(signed_cert.verify(cloud_cert.get_pubkey()))
             else:
                 self.assertFalse(signed_cert.verify(cloud_cert.get_pubkey()))