Rename exception vpcsError to VPCSError.

pull/12/head
grossmj 10 years ago
parent db4280713c
commit 43fa46779f

@ -16,7 +16,7 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
vpcs server module.
VPCS server module.
"""
import os
@ -52,7 +52,7 @@ log = logging.getLogger(__name__)
class VPCS(IModule):
"""
vpcs module.
VPCS module.
:param name: module name
:param args: arguments for the module
@ -283,7 +283,7 @@ class VPCS(IModule):
except FileExistsError:
pass
except OSError as e:
raise vpcsError("Could not create working directory {}".format(e))
raise VPCSError("Could not create working directory {}".format(e))
vpcs_instance = VPCSDevice(vpcs_path, self._working_dir, host=self._host, name=name)
# find a console port
@ -292,7 +292,7 @@ class VPCS(IModule):
try:
vpcs_instance.console = find_unused_port(self._current_console_port, self._console_end_port_range, self._host)
except Exception as e:
raise vpcsError(e)
raise VPCSError(e)
self._current_console_port += 1
except VPCSError as e:
self.send_custom_error(str(e))
@ -332,7 +332,7 @@ class VPCS(IModule):
try:
vpcs_instance.delete()
del self._vpcs_instances[request["id"]]
except vpcsError as e:
except VPCSError as e:
self.send_custom_error(str(e))
return
@ -378,11 +378,11 @@ class VPCS(IModule):
log.info("saving script-file to {}".format(config_path))
f.write(config)
except OSError as e:
raise vpcsError("Could not save the configuration {}: {}".format(config_path, e))
raise VPCSError("Could not save the configuration {}: {}".format(config_path, e))
# update the request with the new local script-file path
request["script_file"] = os.path.basename(config_path)
except vpcsError as e:
except VPCSError as e:
self.send_custom_error(str(e))
return
@ -392,7 +392,7 @@ class VPCS(IModule):
try:
setattr(vpcs_instance, name, value)
response[name] = value
except vpcsError as e:
except VPCSError as e:
self.send_custom_error(str(e))
return
@ -425,7 +425,7 @@ class VPCS(IModule):
log.debug("starting vpcs with command: {}".format(vpcs_instance.command()))
vpcs_instance.vpcs = self._vpcs
vpcs_instance.start()
except vpcsError as e:
except VPCSError as e:
self.send_custom_error(str(e))
return
self.send_response(True)
@ -455,7 +455,7 @@ class VPCS(IModule):
try:
vpcs_instance.stop()
except vpcsError as e:
except VPCSError as e:
self.send_custom_error(str(e))
return
self.send_response(True)
@ -487,7 +487,7 @@ class VPCS(IModule):
if vpcs_instance.is_running():
vpcs_instance.stop()
vpcs_instance.start()
except vpcsError as e:
except VPCSError as e:
self.send_custom_error(str(e))
return
self.send_response(True)
@ -525,7 +525,7 @@ class VPCS(IModule):
try:
port = find_unused_port(self._current_udp_port, self._udp_end_port_range, host=self._host, socket_type="UDP")
except Exception as e:
raise vpcsError(e)
raise VPCSError(e)
self._current_udp_port += 1
log.info("{} [id={}] has allocated UDP port {} with host {}".format(vpcs_instance.name,
@ -534,7 +534,7 @@ class VPCS(IModule):
self._host))
response = {"lport": port}
except vpcsError as e:
except VPCSError as e:
self.send_custom_error(str(e))
return
@ -563,7 +563,7 @@ class VPCS(IModule):
log.error("could not determine if CAP_NET_RAW capability is set for {}: {}".format(self._vpcs, e))
return
raise vpcsError("{} has no privileged access to {}.".format(self._vpcs, device))
raise VPCSError("{} has no privileged access to {}.".format(self._vpcs, device))
@IModule.route("vpcs.add_nio")
def add_nio(self, request):
@ -612,14 +612,14 @@ class VPCS(IModule):
self._check_for_privileged_access(tap_device)
nio = NIO_TAP(tap_device)
if not nio:
raise vpcsError("Requested NIO does not exist or is not supported: {}".format(request["nio"]["type"]))
except vpcsError as e:
raise VPCSError("Requested NIO does not exist or is not supported: {}".format(request["nio"]["type"]))
except VPCSError as e:
self.send_custom_error(str(e))
return
try:
vpcs_instance.slot_add_nio_binding(slot, port, nio)
except vpcsError as e:
except VPCSError as e:
self.send_custom_error(str(e))
return
@ -654,7 +654,7 @@ class VPCS(IModule):
port = request["port"]
try:
vpcs_instance.slot_remove_nio_binding(slot, port)
except vpcsError as e:
except VPCSError as e:
self.send_custom_error(str(e))
return

@ -63,7 +63,7 @@ class VPCSDevice(object):
break
if self._id == 0:
raise vpcsError("Maximum number of vpcs instances reached")
raise VPCSError("Maximum number of vpcs instances reached")
if name:
self._name = name
@ -192,7 +192,7 @@ class VPCSDevice(object):
except FileExistsError:
pass
except OSError as e:
raise vpcsError("Could not create working directory {}: {}".format(working_dir, e))
raise VPCSError("Could not create working directory {}: {}".format(working_dir, e))
self._working_dir = working_dir
log.info("vpcs {name} [id={id}]: working directory changed to {wd}".format(name=self._name,
@ -259,10 +259,10 @@ class VPCSDevice(object):
if not self.is_running():
if not os.path.isfile(self._path):
raise vpcsError("vpcs image '{}' is not accessible".format(self._path))
raise VPCSError("vpcs image '{}' is not accessible".format(self._path))
if not os.access(self._path, os.X_OK):
raise vpcsError("vpcs image '{}' is not executable".format(self._path))
raise VPCSError("vpcs image '{}' is not executable".format(self._path))
self._command = self._build_command()
try:
@ -279,7 +279,7 @@ class VPCSDevice(object):
except OSError as e:
vpcs_stdout = self.read_vpcs_stdout()
log.error("could not start vpcs {}: {}\n{}".format(self._path, e, vpcs_stdout))
raise vpcsError("could not start vpcs {}: {}\n{}".format(self._path, e, vpcs_stdout))
raise VPCSError("could not start vpcs {}: {}\n{}".format(self._path, e, vpcs_stdout))
def stop(self):
"""
@ -292,15 +292,14 @@ class VPCSDevice(object):
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((self._host, self._console))
sock.send(bytes("quit\n", 'UTF-8'))
sock.close()
sock.send(bytes("quit\n", 'UTF-8'))
sock.close()
except TypeError as e:
log.warn("vpcs instance {} PID={} is still running. Error: {}".format(self._id,
self._process.pid, e))
self._process = None
self._started = False
def read_vpcs_stdout(self):
"""
Reads the standard output of the vpcs process.
@ -327,7 +326,7 @@ class VPCSDevice(object):
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((self._host, self._console))
sock.close()
sock.close()
return True
except:
e = sys.exc_info()[0]
@ -335,7 +334,6 @@ class VPCSDevice(object):
return False
return False
def slot_add_nio_binding(self, slot_id, port_id, nio):
"""
Adds a slot NIO binding.
@ -348,11 +346,11 @@ class VPCSDevice(object):
try:
adapter = self._slots[slot_id]
except IndexError:
raise vpcsError("Slot {slot_id} doesn't exist on vpcs {name}".format(name=self._name,
raise VPCSError("Slot {slot_id} doesn't exist on vpcs {name}".format(name=self._name,
slot_id=slot_id))
if not adapter.port_exists(port_id):
raise vpcsError("Port {port_id} doesn't exist in adapter {adapter}".format(adapter=adapter,
raise VPCSError("Port {port_id} doesn't exist in adapter {adapter}".format(adapter=adapter,
port_id=port_id))
adapter.add_nio(port_id, nio)
@ -373,11 +371,11 @@ class VPCSDevice(object):
try:
adapter = self._slots[slot_id]
except IndexError:
raise vpcsError("Slot {slot_id} doesn't exist on vpcs {name}".format(name=self._name,
raise VPCSError("Slot {slot_id} doesn't exist on vpcs {name}".format(name=self._name,
slot_id=slot_id))
if not adapter.port_exists(port_id):
raise vpcsError("Port {port_id} doesn't exist in adapter {adapter}".format(adapter=adapter,
raise VPCSError("Port {port_id} doesn't exist in adapter {adapter}".format(adapter=adapter,
port_id=port_id))
nio = adapter.get_nio(port_id)
@ -422,7 +420,7 @@ class VPCSDevice(object):
command = [self._path]
command.extend(["-p", str(self._console)])
for adapter in self._slots:
for unit in adapter.ports.keys():
nio = adapter.get_nio(unit)
@ -432,13 +430,13 @@ class VPCSDevice(object):
command.extend(["-s", str(nio.lport)])
command.extend(["-c", str(nio.rport)])
command.extend(["-t", str(nio.rhost)])
elif isinstance(nio, NIO_TAP):
# TAP interface
command.extend(["-e"]) #, str(nio.tap_device)]) #TODO: Fix, currently vpcs doesn't allow specific tap_device
command.extend(["-m", str(self._id)]) #The unique ID is used to set the mac address offset
command.extend(["-i", str(1)]) #Option to start only one pc instance
command.extend(["-e"]) #, str(nio.tap_device)]) #TODO: Fix, currently vpcs doesn't allow specific tap_device
command.extend(["-m", str(self._id)]) # The unique ID is used to set the mac address offset
command.extend(["-i", str(1)]) # Option to start only one pc instance
if self._script_file:
command.extend([self._script_file])
return command
@ -465,5 +463,3 @@ class VPCSDevice(object):
log.info("vpcs {name} [id={id}]: script_file set to {config}".format(name=self._name,
id=self._id,
config=self._script_file))

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