def ensureCertificateExists(self, name):
certname = "%s-cert.pem" % name
keyname = "%s-key.pem" % name
reqname = "%s-req.pem" % name
if self.hasfile(certname) and self.hasfile(keyname):
return True
# No cert/key in repository
log_info("Creating certificate for %s" % name)
sParams = self.getCAParameters().copy()
sParams["CN"] = name
sParams["emailAddress"] = "root@%s" % \
config_get_required("network", "domain")
# Generate the new key / request
(csr, key) = createKey(0, sParams)
# Get it signed
cert = self.signReq(csr)
# Add it to the repository for safe-keeping
try:
a = self.addfile(certname, cert)
b = self.addfile(keyname, key)
c = self.addfile(reqname, csr)
self.checkin("Added %s certificate and key" % name, [a, b, c])
return True
except ccs_ca_error:
(type, value, tb) = sys.exc_info()
log_error("CA: Failed to create key for %s: %s" % \
(name, value), (type, value, tb))
return False
def initialiseService():
"""Called by the system the very first time the service is loaded.
This should setup an entry in the service table and load any default
service properties into the service_prop table.
"""
session = getSessionE(ADMIN_SESSION_ID)
session.begin("initialising RADIUS service")
try:
session.execute("INSERT INTO service (service_id, service_name, " \
"enabled) VALUES (DEFAULT, %s, DEFAULT)", \
(radius_service.serviceName))
service_id = session.getCountOf("SELECT currval('" \
"service_service_id_seq') AS server_id", ())
default_ip = getIP(config_get_required("network", "server_name"))
session.execute("INSERT INTO service_prop (service_prop_id, " \
"service_id, prop_name, prop_type, default_value, " \
"required) VALUES (DEFAULT, %s, %s, 'string', %s, 'f')", \
(service_id, AUTHIP_PROPERTY, default_ip))
session.execute("INSERT INTO service_prop (service_prop_id, " \
"service_id, prop_name, prop_type, default_value, " \
"required) VALUES (DEFAULT, %s, %s, 'string', %s, 'f')", \
(service_id, ACCTIP_PROPERTY, default_ip))
session.execute("INSERT INTO service_prop (service_prop_id, " \
"service_id, prop_name, prop_type, default_value, " \
"required) VALUES (DEFAULT, %s, %s, 'integer', %s, 'f')", \
(service_id, AUTHPORT_PROPERTY, 1812))
session.execute("INSERT INTO service_prop (service_prop_id, " \
"service_id, prop_name, prop_type, default_value, " \
"required) VALUES (DEFAULT, %s, %s, 'integer', %s, 'f')", \
(service_id, ACCTPORT_PROPERTY, 1813))
# Commit the changese
session.commit()
log_info("Created radius service entries and tables in database")
except:
session.rollback()
log_error("Unable to initialise radius database entries!", \
sys.exc_info())
raise ccs_radius_error("Failed to setup database tables!")
return service_id
def initConfFile(self):
"""Initialises the CA configuration file"""
signdays = config_get("ca", "signdays", DEFAULT_SIGN_DAYS)
site_name = config_get_required("network", "site_name")
domain = config_get_required("network", "domain")
fd = open("%s/ca.cnf" % self.rDir, "w")
fd.write("""#
# OpenSSL configuration file for the CRCnet Configuration System CA
# This definition stops the following lines choking if HOME isn't
# defined.
HOME = .
RANDFILE = $ENV::HOME/.rnd
####################################################################
[ ca ]
default_ca = CA_default # The default ca section
####################################################################
[ CA_default ]
dir = $ENV::CCS_CA_DIR # Where everything is kept
certs = $dir/certs # Where the issued certs are kept
crl_dir = $dir/crl # Where the issued crl are kept
database = $dir/index.txt # database index file.
new_certs_dir = $dir/certs # default place for new certs.
certificate = $dir/cacert.pem # The CA certificate
private_key = $dir/cakey.pem # The private key
serial = $dir/serial # The current serial number
crlnumber = $dir/crlnumber # the current crl number
crl = $dir/crl.pem # The current CRL
RANDFILE = $dir/.rand # private random number file
x509_extensions = usr_cert # The extentions to add to the cert
name_opt = ca_default # Subject Name options
cert_opt = ca_default # Certificate field options
default_days = %s # how long to certify for
default_crl_days = 30 # how long before next CRL
default_md = sha1 # which md to use.
preserve = no # keep passed DN ordering
policy = policy_match
# For the CA policy
[ policy_match ]
countryName = match
stateOrProvinceName = optional
localityName = optional
organizationName = match
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
[ policy_anything ]
countryName = optional
stateOrProvinceName = optional
localityName = optional
organizationName = optional
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
####################################################################
[ req ]
default_bits = 1024
default_keyfile = privkey.pem
distinguished_name = req_distinguished_name
attributes = req_attributes
x509_extensions = v3_ca # Extensions to add to self signed certs
string_mask = nombstr
[ req_distinguished_name ]
countryName = Country Name (2 letter code)
countryName_default = NZ
countryName_min = 2
countryName_max = 2
localityName = Locality Name (eg, city)
0.organizationName = Organization Name (eg, company)
0.organizationName_default = %s
organizationalUnitName = Organizational Unit Name (eg, section)
organizationalUnitName_default = CRCnet Configuration System
commonName = Common Name (eg, YOUR name)
commonName_max = 64
emailAddress = Email Address
emailAddress_max = 64
[ req_attributes ]
challengePassword = A challenge password
challengePassword_min = 4
challengePassword_max = 20
unstructuredName = An optional company name
# These extensions are added when 'ca' signs a request.
[ usr_cert ]
basicConstraints = CA:FALSE
# nsCertType = server
# nsCertType = client
# This will be displayed in Netscape's comment listbox.
nsComment = "Signed by the CRCnet Configuration System"
# PKIX recommendations harmless if included in all certificates.
subjectKeyIdentifier = hash
authorityKeyIdentifier = keyid,issuer
nsRevocationUrl = https://%s/certs/crl.pem
# Extensions to add to a certificate request
[ v3_req ]
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment
# Extensions for a typical CA
[ v3_ca ]
subjectKeyIdentifier = hash
authorityKeyIdentifier = keyid:always,issuer:always
basicConstraints = CA:true
# CRL extensions.
[ crl_ext ]
authorityKeyIdentifier = keyid:always,issuer:always
""" % (signdays, site_name, domain))
fd.close()
client.svn_client_add("%s/ca.cnf" % self.rDir, False, \
self.ctx, self.pool)
log_info("CA: Initialised configuration file")
return
def ifAccountThread():
"""Runs as a thread to account from traffic on an interface"""
global _accountingInfo, _runIfAccount, nas_id, nas_ip
global radius_update_interval, radius_acct_server, radius_auth_server
try:
# Is interface accounting enabled
enabled = config_getboolean("accounting", "enabled", True)
if not enabled:
log_info("Interface accounting disabled.")
return
_runIfAccount = True
# What interval shall we check hosts at
check_interval = config_get("accounting", "check_interval", DEFAULT_CHECK_INTERVAL)
radius_update_interval = config_getint("accounting", "update_interval", DEFAULT_UPDATE_INTERVAL)
# Initialise the interface list
default_user_file = "%s/accounting_users" % os.path.dirname(DEFAULT_CONFFILE)
user_file = config_get("accounting", "user_file", default_user_file)
if not os.path.exists(user_file):
log_error("Interface accounting disabled. No user file: %s" % user_file)
_runIfAccount = False
return
# Initialise the RADIUS connection
try:
dummy0 = getInterfaces(returnOne="dummy0")[0]
dummy0ip = dummy0["address"].split("/")[0]
except:
log_error("Could not determine host loopback address!", sys.exc_info())
dummy0ip = "127.0.0.1"
acct_server = config_get("accounting", "acct_server", "radius")
acct_secret = config_get_required("accounting", "acct_secret")
auth_server = config_get("accounting", "auth_server", "radius")
auth_secret = config_get_required("accounting", "auth_secret")
nas_id = config_get("accounting", "nas_id", getFQDN())
nas_ip = config_get("accounting", "nas_ip", dummy0ip)
radius_acct_server = Client(server=acct_server, secret=acct_secret, dict=Dictionary(RADIUS_DICTIONARY))
radius_auth_server = Client(server=auth_server, secret=auth_secret, dict=Dictionary(RADIUS_DICTIONARY))
# FreeRADIUS at least auths based on IP address, make sure our
# packets come from the right place
radius_acct_server.bind((nas_ip, 0))
radius_auth_server.bind((nas_ip, 0))
# Read and parse the user file
parseUserFile(user_file)
# Initialise interface state
initialiseInterfaceState()
# Loop forever reading byte counters as appropriate
while _runIfAccount:
# wait a bit before checking
time.sleep(check_interval)
# Send any queued packets
processRADIUSQueue()
# Try and re-authenticate any dead interfaces
for ifname, iface in _accountingInfo.items():
if iface["authenticated"]:
continue
age = time.time() - iface["last_auth_check"]
if age > radius_update_interval:
doRADIUSAuthentication(ifname)
# Update traffic details
updateTrafficCounters()
# Generate interim-updates
processInterimUpdates()
except:
(etype, value, tb) = sys.exc_info()
log_error("Exception in interface accounting thread! - %s" % value, (etype, value, tb))
log_info("Exiting interface accounting thread")
