def readSessionInfo(sessionID):
iscsi_session = getIscsiSessionPath(sessionID)
iscsi_connection = getIscsiConnectionPath(sessionID)
if not os.path.isdir(iscsi_session) or not os.path.isdir(iscsi_connection):
raise OSError(errno.ENOENT, "No such session")
iqn = sysfs.read(os.path.join(iscsi_session, "targetname"), default="")
iface = sysfs.read(os.path.join(iscsi_session, "ifacename"), default="")
tpgt = sysfs.read_int(os.path.join(iscsi_session, "tpgt"))
username = sysfs.read(os.path.join(iscsi_session, "username"), default="")
password = sysfs.read_password(os.path.join(iscsi_session, "password"),
default="")
ip = sysfs.read(os.path.join(iscsi_connection, "persistent_address"),
default="")
port = sysfs.read_int(os.path.join(iscsi_connection, "persistent_port"))
# iscsi_host is available only when the session exists.
iscsi_host = getIscsiHostPath(sessionID)
netdev = sysfs.read(os.path.join(iscsi_host, "netdev"), default="")
if netdev in ["<NULL>", "(null)"]:
netdev = None
iface = IscsiInterface(iface, netIfaceName=netdev)
portal = IscsiPortal(ip, port)
target = IscsiTarget(portal, tpgt, iqn)
# NOTE: ChapCredentials must match the way we initialize username and
# password when receiving request from engine in
# hsm._connectionDict2ConnectionInfo().
# iscsi reports empty user/password as "<NULL>" (RHEL5) or "(null)"
# (RHEL6); empty values are stored as None.
if username in ["<NULL>", "(null)", ""]:
username = None
if password.value in ["<NULL>", "(null)", ""]:
password = None
cred = None
if username or password:
cred = ChapCredentials(username, password)
return IscsiSession(sessionID, iface, target, cred)
def test_read_str_error(self):
with self.assertRaises(EnvironmentError):
sysfs.read(os.getcwd())
def test_read_str_missing_default(self):
self.assertEqual(sysfs.read("/no/such/path", "default"), "default")
def test_read_str_missing_no_default(self):
with self.assertRaises(EnvironmentError):
sysfs.read("/no/such/path")
def test_read_str(self):
with temporaryPath(data=b"value") as path:
self.assertEqual(sysfs.read(path), "value")
def test_read_str_strip(self):
with temporaryPath(data=b" \t\n1\n2\n\t ") as path:
self.assertEqual(sysfs.read(path), "1\n2")
def test_read_str_error(self):
with self.assertRaises(EnvironmentError):
sysfs.read(os.getcwd())
def test_read_str_missing_no_default(self):
with self.assertRaises(EnvironmentError):
sysfs.read("/no/such/path")
def test_read_str_missing_default(self):
self.assertEqual(sysfs.read("/no/such/path", "default"), "default")
def test_read_str_strip(self):
with temporaryPath(data=b" \t\n1\n2\n\t ") as path:
self.assertEqual(sysfs.read(path), "1\n2")
def test_read_str(self):
with temporaryPath(data=b"value") as path:
self.assertEqual(sysfs.read(path), "value")
