Merge pull request #654 from coreemu/develop

8.1.0 merge
This commit is contained in:
bharnden 2022-02-18 09:12:33 -08:00 committed by GitHub
commit bcf7429785
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36 changed files with 931 additions and 766 deletions

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@ -1,3 +1,18 @@
## 2022-02-18 CORE 8.1.0
* Installation
* updated dependency versions to account for known vulnerabilities
* GUI
* fixed issue drawing asymmetric link configurations when joining a session
* daemon
* fixed issue getting templates and creating files for config services
* added by directional support for network to network links
* \#647 - fixed issue when creating RJ45 nodes
* \#646 - fixed issue when creating files for Docker nodes
* \#645 - improved wlan change updates to account for all updates with no delay
* services
* fixed file generation for OSPFv2 config service
## 2022-01-12 CORE 8.0.0
*Breaking Changes

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@ -25,7 +25,10 @@ For more detailed installation see [here](https://coreemu.github.io/core/install
```shell
git clone https://github.com/coreemu/core.git
cd core
# install dependencies to run installation task
./setup.sh
# run the following or open a new terminal
source ~/.bashrc
# Ubuntu
inv install
# CentOS

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@ -2,7 +2,7 @@
# Process this file with autoconf to produce a configure script.
# this defines the CORE version number, must be static for AC_INIT
AC_INIT(core, 8.0.0)
AC_INIT(core, 8.1.0)
# autoconf and automake initialization
AC_CONFIG_SRCDIR([netns/version.h.in])

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@ -288,17 +288,25 @@ class CoreGrpcServer(core_pb2_grpc.CoreApiServicer):
# create links
links = []
asym_links = []
edit_links = []
known_links = set()
for link in request.session.links:
if link.options.unidirectional:
asym_links.append(link)
iface1 = link.iface1.id if link.iface1 else None
iface2 = link.iface2.id if link.iface2 else None
if link.node1_id < link.node2_id:
link_id = (link.node1_id, iface1, link.node2_id, iface2)
else:
link_id = (link.node2_id, iface2, link.node1_id, iface1)
if link_id in known_links:
edit_links.append(link)
else:
known_links.add(link_id)
links.append(link)
_, exceptions = grpcutils.create_links(session, links)
if exceptions:
exceptions = [str(x) for x in exceptions]
return core_pb2.StartSessionResponse(result=False, exceptions=exceptions)
_, exceptions = grpcutils.edit_links(session, asym_links)
_, exceptions = grpcutils.edit_links(session, edit_links)
if exceptions:
exceptions = [str(x) for x in exceptions]
return core_pb2.StartSessionResponse(result=False, exceptions=exceptions)

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@ -19,6 +19,20 @@ logger = logging.getLogger(__name__)
TEMPLATES_DIR: str = "templates"
def get_template_path(file_path: Path) -> str:
"""
Utility to convert a given file path to a valid template path format.
:param file_path: file path to convert
:return: template path
"""
if file_path.is_absolute():
template_path = str(file_path.relative_to("/"))
else:
template_path = str(file_path)
return template_path
class ConfigServiceMode(enum.Enum):
BLOCKING = 0
NON_BLOCKING = 1
@ -295,10 +309,7 @@ class ConfigService(abc.ABC):
templates = {}
for file in self.files:
file_path = Path(file)
if file_path.is_absolute():
template_path = str(file_path.relative_to("/"))
else:
template_path = str(file_path)
template_path = get_template_path(file_path)
if file in self.custom_templates:
template = self.custom_templates[file]
template = self.clean_text(template)
@ -322,11 +333,12 @@ class ConfigService(abc.ABC):
"node(%s) service(%s) template(%s)", self.node.name, self.name, file
)
file_path = Path(file)
template_path = get_template_path(file_path)
if file in self.custom_templates:
text = self.custom_templates[file]
rendered = self.render_text(text, data)
elif self.templates.has_template(file_path.name):
rendered = self.render_template(file_path.name, data)
elif self.templates.has_template(template_path):
rendered = self.render_template(template_path, data)
else:
text = self.get_text_template(file)
rendered = self.render_text(text, data)

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@ -7,7 +7,8 @@ from core.configservice.base import ConfigService, ConfigServiceMode
from core.emane.nodes import EmaneNet
from core.nodes.base import CoreNodeBase
from core.nodes.interface import DEFAULT_MTU, CoreInterface
from core.nodes.network import WlanNode
from core.nodes.network import PtpNet, WlanNode
from core.nodes.physical import Rj45Node
logger = logging.getLogger(__name__)
GROUP: str = "Quagga"
@ -55,6 +56,20 @@ def get_router_id(node: CoreNodeBase) -> str:
return "0.0.0.0"
def rj45_check(iface: CoreInterface) -> bool:
"""
Helper to detect whether interface is connected an external RJ45
link.
"""
if iface.net:
for peer_iface in iface.net.get_ifaces():
if peer_iface == iface:
continue
if isinstance(peer_iface.node, Rj45Node):
return True
return False
class Zebra(ConfigService):
name: str = "zebra"
group: str = GROUP
@ -105,7 +120,13 @@ class Zebra(ConfigService):
ip4s.append(str(ip4))
for ip6 in iface.ip6s:
ip6s.append(str(ip6))
ifaces.append((iface, ip4s, ip6s, iface.control))
configs = []
if not iface.control:
for service in services:
config = service.quagga_iface_config(iface)
if config:
configs.append(config.split("\n"))
ifaces.append((iface, ip4s, ip6s, configs))
return dict(
quagga_bin_search=quagga_bin_search,
@ -156,17 +177,32 @@ class Ospfv2(QuaggaService, ConfigService):
ipv4_routing: bool = True
def quagga_iface_config(self, iface: CoreInterface) -> str:
if has_mtu_mismatch(iface):
return "ip ospf mtu-ignore"
else:
return ""
has_mtu = has_mtu_mismatch(iface)
has_rj45 = rj45_check(iface)
is_ptp = isinstance(iface.net, PtpNet)
data = dict(has_mtu=has_mtu, is_ptp=is_ptp, has_rj45=has_rj45)
text = """
% if has_mtu:
ip ospf mtu-ignore
% endif
% if has_rj45:
<% return STOP_RENDERING %>
% endif
% if is_ptp:
ip ospf network point-to-point
% endif
ip ospf hello-interval 2
ip ospf dead-interval 6
ip ospf retransmit-interval 5
"""
return self.render_text(text, data)
def quagga_config(self) -> str:
router_id = get_router_id(self.node)
addresses = []
for iface in self.node.get_ifaces(control=False):
for ip4 in iface.ip4s:
addresses.append(str(ip4.ip))
addresses.append(str(ip4))
data = dict(router_id=router_id, addresses=addresses)
text = """
router ospf

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@ -1,4 +1,4 @@
% for iface, ip4s, ip6s, is_control in ifaces:
% for iface, ip4s, ip6s, configs in ifaces:
interface ${iface.name}
% if want_ip4:
% for addr in ip4s:
@ -10,13 +10,11 @@ interface ${iface.name}
ipv6 address ${addr}
% endfor
% endif
% if not is_control:
% for service in services:
% for line in service.quagga_iface_config(iface).split("\n"):
% for config in configs:
% for line in config:
${line}
% endfor
% endfor
% endif
!
% endfor

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@ -2,7 +2,7 @@
CORE data objects.
"""
from dataclasses import dataclass, field
from typing import TYPE_CHECKING, List, Optional, Tuple
from typing import TYPE_CHECKING, Any, List, Optional, Tuple
import netaddr
@ -176,6 +176,67 @@ class LinkOptions:
key: int = None
buffer: int = None
def update(self, options: "LinkOptions") -> bool:
"""
Updates current options with values from other options.
:param options: options to update with
:return: True if any value has changed, False otherwise
"""
changed = False
if options.delay is not None and 0 <= options.delay != self.delay:
self.delay = options.delay
changed = True
if options.bandwidth is not None and 0 <= options.bandwidth != self.bandwidth:
self.bandwidth = options.bandwidth
changed = True
if options.loss is not None and 0 <= options.loss != self.loss:
self.loss = options.loss
changed = True
if options.dup is not None and 0 <= options.dup != self.dup:
self.dup = options.dup
changed = True
if options.jitter is not None and 0 <= options.jitter != self.jitter:
self.jitter = options.jitter
changed = True
if options.buffer is not None and 0 <= options.buffer != self.buffer:
self.buffer = options.buffer
changed = True
return changed
def is_clear(self) -> bool:
"""
Checks if the current option values represent a clear state.
:return: True if the current values should clear, False otherwise
"""
clear = self.delay is None or self.delay <= 0
clear &= self.jitter is None or self.jitter <= 0
clear &= self.loss is None or self.loss <= 0
clear &= self.dup is None or self.dup <= 0
clear &= self.bandwidth is None or self.bandwidth <= 0
clear &= self.buffer is None or self.buffer <= 0
return clear
def __eq__(self, other: Any) -> bool:
"""
Custom logic to check if this link options is equivalent to another.
:param other: other object to check
:return: True if they are both link options with the same values,
False otherwise
"""
if not isinstance(other, LinkOptions):
return False
return (
self.delay == other.delay
and self.jitter == other.jitter
and self.loss == other.loss
and self.dup == other.dup
and self.bandwidth == other.bandwidth
and self.buffer == other.buffer
)
@dataclass
class LinkData:

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@ -276,20 +276,22 @@ class Session:
ptp = self.create_node(PtpNet, start)
iface1 = node1.new_iface(ptp, iface1_data)
iface2 = node2.new_iface(ptp, iface2_data)
ptp.linkconfig(iface1, options)
iface1.config(options)
if not options.unidirectional:
ptp.linkconfig(iface2, options)
iface2.config(options)
# link node to net
elif isinstance(node1, CoreNodeBase) and isinstance(node2, CoreNetworkBase):
logger.info("linking node to net: %s - %s", node1.name, node2.name)
iface1 = node1.new_iface(node2, iface1_data)
if not isinstance(node2, (EmaneNet, WlanNode)):
node2.linkconfig(iface1, options)
iface1.config(options)
# link net to node
elif isinstance(node2, CoreNodeBase) and isinstance(node1, CoreNetworkBase):
logger.info("linking net to node: %s - %s", node1.name, node2.name)
iface2 = node2.new_iface(node1, iface2_data)
wireless_net = isinstance(node1, (EmaneNet, WlanNode))
if not options.unidirectional and not wireless_net:
node1.linkconfig(iface2, options)
iface2.config(options)
# network to network
elif isinstance(node1, CoreNetworkBase) and isinstance(
node2, CoreNetworkBase
@ -298,11 +300,10 @@ class Session:
"linking network to network: %s - %s", node1.name, node2.name
)
iface1 = node1.linknet(node2)
node1.linkconfig(iface1, options)
use_local = iface1.net == node1
iface1.config(options, use_local=use_local)
if not options.unidirectional:
iface1.swapparams("_params_up")
node2.linkconfig(iface1, options)
iface1.swapparams("_params_up")
iface1.config(options, use_local=not use_local)
else:
raise CoreError(
f"cannot link node1({type(node1)}) node2({type(node2)})"
@ -379,16 +380,18 @@ class Session:
elif isinstance(node1, CoreNetworkBase) and isinstance(
node2, CoreNetworkBase
):
for iface in node1.get_ifaces(control=False):
if iface.othernet == node2:
node1.detach(iface)
iface.shutdown()
break
for iface in node2.get_ifaces(control=False):
if iface.othernet == node1:
node2.detach(iface)
iface.shutdown()
break
iface1 = node1.get_linked_iface(node2)
if iface1:
node1.detach(iface1)
iface1.shutdown()
iface2 = node2.get_linked_iface(node1)
if iface2:
node2.detach(iface2)
iface2.shutdown()
if not iface1 and not iface2:
raise CoreError(
f"node1({node1.name}) and node2({node2.name}) are not connected"
)
self.sdt.delete_link(node1_id, node2_id)
def update_link(
@ -432,11 +435,11 @@ class Session:
else:
if isinstance(node1, CoreNodeBase) and isinstance(node2, CoreNodeBase):
iface1 = node1.ifaces.get(iface1_id)
iface2 = node2.ifaces.get(iface2_id)
if not iface1:
raise CoreError(
f"node({node1.name}) missing interface({iface1_id})"
)
iface2 = node2.ifaces.get(iface2_id)
if not iface2:
raise CoreError(
f"node({node2.name}) missing interface({iface2_id})"
@ -446,39 +449,40 @@ class Session:
f"node1({node1.name}) node2({node2.name}) "
"not connected to same net"
)
ptp = iface1.net
ptp.linkconfig(iface1, options, iface2)
iface1.config(options)
if not options.unidirectional:
ptp.linkconfig(iface2, options, iface1)
iface2.config(options)
elif isinstance(node1, CoreNodeBase) and isinstance(node2, CoreNetworkBase):
iface = node1.get_iface(iface1_id)
node2.linkconfig(iface, options)
if iface.net != node2:
raise CoreError(
f"node1({node1.name}) iface1({iface1_id})"
f" is not linked to node1({node2.name})"
)
iface.config(options)
elif isinstance(node2, CoreNodeBase) and isinstance(node1, CoreNetworkBase):
iface = node2.get_iface(iface2_id)
node1.linkconfig(iface, options)
if iface.net != node1:
raise CoreError(
f"node2({node2.name}) iface2({iface2_id})"
f" is not linked to node1({node1.name})"
)
iface.config(options)
elif isinstance(node1, CoreNetworkBase) and isinstance(
node2, CoreNetworkBase
):
iface = node1.get_linked_iface(node2)
upstream = False
if not iface:
upstream = True
iface = node2.get_linked_iface(node1)
if not iface:
raise CoreError("modify unknown link between nets")
if upstream:
iface.swapparams("_params_up")
node1.linkconfig(iface, options)
iface.swapparams("_params_up")
else:
node1.linkconfig(iface, options)
if iface:
use_local = iface.net == node1
iface.config(options, use_local=use_local)
if not options.unidirectional:
if upstream:
node2.linkconfig(iface, options)
iface.config(options, use_local=not use_local)
else:
iface.swapparams("_params_up")
node2.linkconfig(iface, options)
iface.swapparams("_params_up")
raise CoreError(
f"node1({node1.name}) and node2({node2.name}) are not linked"
)
else:
raise CoreError(
f"cannot update link node1({type(node1)}) node2({type(node2)})"

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@ -395,6 +395,7 @@ class CanvasManager:
if token in self.edges and link.options.unidirectional:
edge = self.edges[token]
edge.asymmetric_link = link
edge.redraw()
elif token not in self.edges:
edge = CanvasEdge(self.app, src, dst)
edge.complete(dst, link)

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@ -321,7 +321,7 @@ class BasicRangeModel(WirelessModel):
loss=self.loss,
jitter=self.jitter,
)
self.wlan.linkconfig(iface, options)
iface.config(options)
def get_position(self, iface: CoreInterface) -> Tuple[float, float, float]:
"""
@ -343,14 +343,12 @@ class BasicRangeModel(WirelessModel):
:return: nothing
"""
x, y, z = iface.node.position.get()
self.iface_lock.acquire()
with self.iface_lock:
self.iface_to_pos[iface] = (x, y, z)
if x is None or y is None:
self.iface_lock.release()
return
for iface2 in self.iface_to_pos:
self.calclink(iface, iface2)
self.iface_lock.release()
position_callback = set_position
@ -388,20 +386,15 @@ class BasicRangeModel(WirelessModel):
"""
if iface == iface2:
return
try:
x, y, z = self.iface_to_pos[iface]
x2, y2, z2 = self.iface_to_pos[iface2]
if x2 is None or y2 is None:
return
d = self.calcdistance((x, y, z), (x2, y2, z2))
# ordering is important, to keep the wlan._linked dict organized
a = min(iface, iface2)
b = max(iface, iface2)
with self.wlan.linked_lock:
linked = self.wlan.is_linked(a, b)
if d > self.range:

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@ -13,7 +13,7 @@ import netaddr
from core import utils
from core.configservice.dependencies import ConfigServiceDependencies
from core.emulator.data import InterfaceData, LinkData, LinkOptions
from core.emulator.data import InterfaceData, LinkData
from core.emulator.enumerations import LinkTypes, MessageFlags, NodeTypes
from core.errors import CoreCommandError, CoreError
from core.executables import MOUNT, TEST, VNODED
@ -1000,20 +1000,6 @@ class CoreNetworkBase(NodeBase):
"""
raise NotImplementedError
@abc.abstractmethod
def linkconfig(
self, iface: CoreInterface, options: LinkOptions, iface2: CoreInterface = None
) -> None:
"""
Configure link parameters by applying tc queuing disciplines on the interface.
:param iface: interface one
:param options: options for configuring link
:param iface2: interface two
:return: nothing
"""
raise NotImplementedError
def custom_iface(self, node: CoreNode, iface_data: InterfaceData) -> CoreInterface:
raise NotImplementedError
@ -1063,65 +1049,40 @@ class CoreNetworkBase(NodeBase):
:return: list of link data
"""
all_links = []
# build a link message from this network node to each node having a
# connected interface
for iface in self.get_ifaces():
uni = False
unidirectional = 0
linked_node = iface.node
if linked_node is None:
# two layer-2 switches/hubs linked together via linknet()
# two layer-2 switches/hubs linked together
if not iface.othernet:
continue
linked_node = iface.othernet
if linked_node.id == self.id:
continue
iface.swapparams("_params_up")
upstream_params = iface.getparams()
iface.swapparams("_params_up")
if iface.getparams() != upstream_params:
uni = True
unidirectional = 0
if uni:
if iface.local_options != iface.options:
unidirectional = 1
mac = str(iface.mac) if iface.mac else None
iface2_data = InterfaceData(
id=linked_node.get_iface_id(iface), name=iface.name, mac=mac
)
ip4 = iface.get_ip4()
if ip4:
iface2_data.ip4 = str(ip4.ip)
iface2_data.ip4_mask = ip4.prefixlen
ip6 = iface.get_ip6()
if ip6:
iface2_data.ip6 = str(ip6.ip)
iface2_data.ip6_mask = ip6.prefixlen
options_data = iface.get_link_options(unidirectional)
iface_data = iface.get_data()
link_data = LinkData(
message_type=flags,
type=self.linktype,
node1_id=self.id,
node2_id=linked_node.id,
iface2=iface2_data,
options=options_data,
iface2=iface_data,
options=iface.local_options,
)
link_data.options.unidirectional = unidirectional
all_links.append(link_data)
if not uni:
continue
iface.swapparams("_params_up")
options_data = iface.get_link_options(unidirectional)
if unidirectional:
link_data = LinkData(
message_type=MessageFlags.NONE,
type=self.linktype,
node1_id=linked_node.id,
node2_id=self.id,
options=options_data,
options=iface.options,
)
iface.swapparams("_params_up")
link_data.options.unidirectional = unidirectional
all_links.append(link_data)
return all_links

View file

@ -201,7 +201,7 @@ class DockerNode(CoreNode):
temp.write(contents.encode("utf-8"))
temp.close()
temp_path = Path(temp.name)
directory = file_path.name
directory = file_path.parent
if str(directory) != ".":
self.cmd(f"mkdir -m {0o755:o} -p {directory}")
if self.server is not None:

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@ -3,16 +3,18 @@ virtual ethernet classes that implement the interfaces available under Linux.
"""
import logging
import math
import time
from pathlib import Path
from typing import TYPE_CHECKING, Callable, Dict, List, Optional, Tuple
from typing import TYPE_CHECKING, Callable, Dict, List, Optional
import netaddr
from core import utils
from core.emulator.data import LinkOptions
from core.emulator.data import InterfaceData, LinkOptions
from core.emulator.enumerations import TransportType
from core.errors import CoreCommandError, CoreError
from core.executables import TC
from core.nodes.netclient import LinuxNetClient, get_net_client
logger = logging.getLogger(__name__)
@ -25,6 +27,50 @@ if TYPE_CHECKING:
DEFAULT_MTU: int = 1500
def tc_clear_cmd(name: str) -> str:
"""
Create tc command to clear device configuration.
:param name: name of device to clear
:return: tc command
"""
return f"{TC} qdisc delete dev {name} root handle 10:"
def tc_cmd(name: str, options: LinkOptions, mtu: int) -> str:
"""
Create tc command to configure a device with given name and options.
:param name: name of device to configure
:param options: options to configure with
:param mtu: mtu for configuration
:return: tc command
"""
netem = ""
if options.bandwidth is not None:
limit = 1000
bw = options.bandwidth / 1000
if options.buffer is not None and options.buffer > 0:
limit = options.buffer
elif options.delay and options.bandwidth:
delay = options.delay / 1000
limit = max(2, math.ceil((2 * bw * delay) / (8 * mtu)))
netem += f" rate {bw}kbit"
netem += f" limit {limit}"
if options.delay is not None:
netem += f" delay {options.delay}us"
if options.jitter is not None:
if options.delay is None:
netem += f" delay 0us {options.jitter}us 25%"
else:
netem += f" {options.jitter}us 25%"
if options.loss is not None and options.loss > 0:
netem += f" loss {min(options.loss, 100)}%"
if options.dup is not None and options.dup > 0:
netem += f" duplicate {min(options.dup, 100)}%"
return f"{TC} qdisc replace dev {name} root handle 10: netem {netem}"
class CoreInterface:
"""
Base class for network interfaces.
@ -61,7 +107,6 @@ class CoreInterface:
self.mtu: int = mtu
self.net: Optional[CoreNetworkBase] = None
self.othernet: Optional[CoreNetworkBase] = None
self._params: Dict[str, float] = {}
self.ip4s: List[netaddr.IPNetwork] = []
self.ip6s: List[netaddr.IPNetwork] = []
self.mac: Optional[netaddr.EUI] = None
@ -80,6 +125,11 @@ class CoreInterface:
self.session.use_ovs(), self.host_cmd
)
self.control: bool = False
# configuration data
self.has_local_netem: bool = False
self.local_options: LinkOptions = LinkOptions()
self.has_netem: bool = False
self.options: LinkOptions = LinkOptions()
def host_cmd(
self,
@ -219,89 +269,6 @@ class CoreInterface:
except netaddr.AddrFormatError as e:
raise CoreError(f"invalid mac address({mac}): {e}")
def getparam(self, key: str) -> float:
"""
Retrieve a parameter from the, or None if the parameter does not exist.
:param key: parameter to get value for
:return: parameter value
"""
return self._params.get(key)
def get_link_options(self, unidirectional: int) -> LinkOptions:
"""
Get currently set params as link options.
:param unidirectional: unidirectional setting
:return: link options
"""
delay = self.getparam("delay")
if delay is not None:
delay = int(delay)
bandwidth = self.getparam("bw")
if bandwidth is not None:
bandwidth = int(bandwidth)
dup = self.getparam("duplicate")
if dup is not None:
dup = int(dup)
jitter = self.getparam("jitter")
if jitter is not None:
jitter = int(jitter)
buffer = self.getparam("buffer")
if buffer is not None:
buffer = int(buffer)
return LinkOptions(
delay=delay,
bandwidth=bandwidth,
dup=dup,
jitter=jitter,
loss=self.getparam("loss"),
buffer=buffer,
unidirectional=unidirectional,
)
def getparams(self) -> List[Tuple[str, float]]:
"""
Return (key, value) pairs for parameters.
"""
parameters = []
for k in sorted(self._params.keys()):
parameters.append((k, self._params[k]))
return parameters
def setparam(self, key: str, value: float) -> bool:
"""
Set a parameter value, returns True if the parameter has changed.
:param key: parameter name to set
:param value: parameter value
:return: True if parameter changed, False otherwise
"""
# treat None and 0 as unchanged values
logger.debug("setting param: %s - %s", key, value)
if value is None or value < 0:
return False
current_value = self._params.get(key)
if current_value is not None and current_value == value:
return False
self._params[key] = value
return True
def swapparams(self, name: str) -> None:
"""
Swap out parameters dict for name. If name does not exist,
intialize it. This is for supporting separate upstream/downstream
parameters when two layer-2 nodes are linked together.
:param name: name of parameter to swap
:return: nothing
"""
tmp = self._params
if not hasattr(self, name):
setattr(self, name, {})
self._params = getattr(self, name)
setattr(self, name, tmp)
def setposition(self) -> None:
"""
Dispatch position hook handler when possible.
@ -336,6 +303,65 @@ class CoreInterface:
"""
return self.transport_type == TransportType.VIRTUAL
def config(self, options: LinkOptions, use_local: bool = True) -> None:
"""
Configure interface using tc based on existing state and provided
link options.
:param options: options to configure with
:param use_local: True to use localname for device, False for name
:return: nothing
"""
# determine name, options, and if anything has changed
name = self.localname if use_local else self.name
current_options = self.local_options if use_local else self.options
changed = current_options.update(options)
# nothing more to do when nothing has changed or not up
if not changed or not self.up:
return
# clear current settings
if current_options.is_clear():
clear_local_netem = use_local and self.has_local_netem
clear_netem = not use_local and self.has_netem
if clear_local_netem or clear_netem:
cmd = tc_clear_cmd(name)
self.host_cmd(cmd)
if use_local:
self.has_local_netem = False
else:
self.has_netem = False
# set updated settings
else:
cmd = tc_cmd(name, current_options, self.mtu)
self.host_cmd(cmd)
if use_local:
self.has_local_netem = True
else:
self.has_netem = True
def get_data(self) -> InterfaceData:
"""
Retrieve the data representation of this interface.
:return: interface data
"""
if self.node:
iface_id = self.node.get_iface_id(self)
else:
iface_id = self.othernet.get_iface_id(self)
data = InterfaceData(
id=iface_id, name=self.name, mac=str(self.mac) if self.mac else None
)
ip4 = self.get_ip4()
if ip4:
data.ip4 = str(ip4.ip)
data.ip4_mask = ip4.prefixlen
ip6 = self.get_ip6()
if ip6:
data.ip6 = str(ip6.ip)
data.ip6_mask = ip6.prefixlen
return data
class Veth(CoreInterface):
"""

View file

@ -3,9 +3,7 @@ Defines network nodes used within core.
"""
import logging
import math
import threading
import time
from collections import OrderedDict
from pathlib import Path
from queue import Queue
@ -14,7 +12,7 @@ from typing import TYPE_CHECKING, Dict, List, Optional, Type
import netaddr
from core import utils
from core.emulator.data import InterfaceData, LinkData, LinkOptions
from core.emulator.data import InterfaceData, LinkData
from core.emulator.enumerations import (
LinkTypes,
MessageFlags,
@ -23,7 +21,7 @@ from core.emulator.enumerations import (
RegisterTlvs,
)
from core.errors import CoreCommandError, CoreError
from core.executables import NFTABLES, TC
from core.executables import NFTABLES
from core.nodes.base import CoreNetworkBase
from core.nodes.interface import CoreInterface, GreTap, Veth
from core.nodes.netclient import get_net_client
@ -81,50 +79,32 @@ class NftablesQueue:
self.cmds: List[str] = []
# list of WLANs requiring update
self.updates: SetQueue = SetQueue()
# timestamps of last WLAN update; this keeps track of WLANs that are
# using this queue
self.last_update_time: Dict["CoreNetwork", float] = {}
def start(self, net: "CoreNetwork") -> None:
def start(self) -> None:
"""
Start thread to listen for updates for the provided network.
:param net: network to start checking updates
:return: nothing
"""
with self.lock:
self.last_update_time[net] = time.monotonic()
if self.running:
return
if not self.running:
self.running = True
self.run_thread = threading.Thread(target=self.run, daemon=True)
self.run_thread.start()
def stop(self, net: "CoreNetwork") -> None:
def stop(self) -> None:
"""
Stop updates for network, when no networks remain, stop update thread.
:param net: network to stop watching updates
:return: nothing
"""
with self.lock:
self.last_update_time.pop(net, None)
if self.last_update_time:
return
if self.running:
self.running = False
if self.run_thread:
self.updates.put(None)
self.run_thread.join()
self.run_thread = None
def last_update(self, net: "CoreNetwork") -> float:
"""
Return the time elapsed since this network was last updated.
:param net: network node
:return: elapsed time
"""
now = time.monotonic()
last_update = self.last_update_time.setdefault(net, now)
return now - last_update
def run(self) -> None:
"""
Thread target that looks for networks needing update, and
@ -137,17 +117,13 @@ class NftablesQueue:
net = self.updates.get()
if net is None:
break
if not net.up:
self.last_update_time[net] = time.monotonic()
elif self.last_update(net) > self.rate:
with self.lock:
self.build_cmds(net)
self.commit(net)
self.last_update_time[net] = time.monotonic()
def commit(self, net: "CoreNetwork") -> None:
"""
Commit changes to nftables for the provided network.
:param net: network to commit nftables changes
:return: nothing
"""
@ -165,6 +141,7 @@ class NftablesQueue:
def update(self, net: "CoreNetwork") -> None:
"""
Flag this network has an update, so the nftables chain will be rebuilt.
:param net: wlan network
:return: nothing
"""
@ -183,6 +160,7 @@ class NftablesQueue:
def build_cmds(self, net: "CoreNetwork") -> None:
"""
Inspect linked nodes for a network, and rebuild the nftables chain commands.
:param net: network to build commands for
:return: nothing
"""
@ -195,7 +173,7 @@ class NftablesQueue:
self.cmds.append(f"add table bridge {net.brname}")
self.cmds.append(
f"add chain bridge {net.brname} {self.chain} {{type filter hook "
f"forward priority 0\\; policy {policy}\\;}}"
f"forward priority -1\\; policy {policy}\\;}}"
)
# add default rule to accept all traffic not for this bridge
self.cmds.append(
@ -300,7 +278,7 @@ class CoreNetwork(CoreNetworkBase):
self.net_client.set_mtu(self.brname, self.mtu)
self.has_nftables_chain = False
self.up = True
nft_queue.start(self)
nft_queue.start()
def shutdown(self) -> None:
"""
@ -310,7 +288,7 @@ class CoreNetwork(CoreNetworkBase):
"""
if not self.up:
return
nft_queue.stop(self)
nft_queue.stop()
try:
self.net_client.delete_bridge(self.brname)
if self.has_nftables_chain:
@ -400,77 +378,6 @@ class CoreNetwork(CoreNetworkBase):
self.linked[iface1][iface2] = True
nft_queue.update(self)
def linkconfig(
self, iface: CoreInterface, options: LinkOptions, iface2: CoreInterface = None
) -> None:
"""
Configure link parameters by applying tc queuing disciplines on the interface.
:param iface: interface one
:param options: options for configuring link
:param iface2: interface two
:return: nothing
"""
# determine if any settings have changed
changed = any(
[
iface.setparam("bw", options.bandwidth),
iface.setparam("delay", options.delay),
iface.setparam("loss", options.loss),
iface.setparam("duplicate", options.dup),
iface.setparam("jitter", options.jitter),
iface.setparam("buffer", options.buffer),
]
)
if not changed:
return
# delete tc configuration or create and add it
devname = iface.localname
if all(
[
options.delay is None or options.delay <= 0,
options.jitter is None or options.jitter <= 0,
options.loss is None or options.loss <= 0,
options.dup is None or options.dup <= 0,
options.bandwidth is None or options.bandwidth <= 0,
options.buffer is None or options.buffer <= 0,
]
):
if not iface.getparam("has_netem"):
return
if self.up:
cmd = f"{TC} qdisc delete dev {devname} root handle 10:"
iface.host_cmd(cmd)
iface.setparam("has_netem", False)
else:
netem = ""
if options.bandwidth is not None:
limit = 1000
bw = options.bandwidth / 1000
if options.buffer is not None and options.buffer > 0:
limit = options.buffer
elif options.delay and options.bandwidth:
delay = options.delay / 1000
limit = max(2, math.ceil((2 * bw * delay) / (8 * iface.mtu)))
netem += f" rate {bw}kbit"
netem += f" limit {limit}"
if options.delay is not None:
netem += f" delay {options.delay}us"
if options.jitter is not None:
if options.delay is None:
netem += f" delay 0us {options.jitter}us 25%"
else:
netem += f" {options.jitter}us 25%"
if options.loss is not None and options.loss > 0:
netem += f" loss {min(options.loss, 100)}%"
if options.dup is not None and options.dup > 0:
netem += f" duplicate {min(options.dup, 100)}%"
if self.up:
cmd = f"{TC} qdisc replace dev {devname} root handle 10: netem {netem}"
iface.host_cmd(cmd)
iface.setparam("has_netem", True)
def linknet(self, net: CoreNetworkBase) -> CoreInterface:
"""
Link this bridge with another by creating a veth pair and installing
@ -815,41 +722,12 @@ class PtpNet(CoreNetwork):
all_links = []
if len(self.ifaces) != 2:
return all_links
ifaces = self.get_ifaces()
iface1 = ifaces[0]
iface2 = ifaces[1]
unidirectional = 0
if iface1.getparams() != iface2.getparams():
unidirectional = 1
mac = str(iface1.mac) if iface1.mac else None
iface1_data = InterfaceData(
id=iface1.node.get_iface_id(iface1), name=iface1.name, mac=mac
)
ip4 = iface1.get_ip4()
if ip4:
iface1_data.ip4 = str(ip4.ip)
iface1_data.ip4_mask = ip4.prefixlen
ip6 = iface1.get_ip6()
if ip6:
iface1_data.ip6 = str(ip6.ip)
iface1_data.ip6_mask = ip6.prefixlen
mac = str(iface2.mac) if iface2.mac else None
iface2_data = InterfaceData(
id=iface2.node.get_iface_id(iface2), name=iface2.name, mac=mac
)
ip4 = iface2.get_ip4()
if ip4:
iface2_data.ip4 = str(ip4.ip)
iface2_data.ip4_mask = ip4.prefixlen
ip6 = iface2.get_ip6()
if ip6:
iface2_data.ip6 = str(ip6.ip)
iface2_data.ip6_mask = ip6.prefixlen
options_data = iface1.get_link_options(unidirectional)
unidirectional = 0 if iface1.local_options == iface2.local_options else 1
iface1_data = iface1.get_data()
iface2_data = iface2.get_data()
link_data = LinkData(
message_type=flags,
type=self.linktype,
@ -857,25 +735,23 @@ class PtpNet(CoreNetwork):
node2_id=iface2.node.id,
iface1=iface1_data,
iface2=iface2_data,
options=options_data,
options=iface1.local_options,
)
link_data.options.unidirectional = unidirectional
all_links.append(link_data)
# build a 2nd link message for the upstream link parameters
# (swap if1 and if2)
if unidirectional:
iface1_data = InterfaceData(id=iface2.node.get_iface_id(iface2))
iface2_data = InterfaceData(id=iface1.node.get_iface_id(iface1))
options_data = iface2.get_link_options(unidirectional)
link_data = LinkData(
message_type=MessageFlags.NONE,
type=self.linktype,
node1_id=iface2.node.id,
node2_id=iface1.node.id,
iface1=iface1_data,
iface2=iface2_data,
options=options_data,
iface1=InterfaceData(id=iface2_data.id),
iface2=InterfaceData(id=iface1_data.id),
options=iface2.local_options,
)
link_data.options.unidirectional = unidirectional
all_links.append(link_data)
return all_links

View file

@ -7,14 +7,13 @@ import threading
from pathlib import Path
from typing import TYPE_CHECKING, List, Optional, Tuple
from core.emulator.data import InterfaceData, LinkOptions
from core.emulator.data import InterfaceData
from core.emulator.distributed import DistributedServer
from core.emulator.enumerations import NodeTypes, TransportType
from core.errors import CoreCommandError, CoreError
from core.executables import MOUNT, TEST, UMOUNT
from core.nodes.base import CoreNetworkBase, CoreNodeBase
from core.nodes.interface import DEFAULT_MTU, CoreInterface
from core.nodes.network import CoreNetwork
logger = logging.getLogger(__name__)
@ -143,17 +142,6 @@ class PhysicalNode(CoreNodeBase):
if self.up:
self.net_client.device_up(iface.localname)
def linkconfig(
self, iface: CoreInterface, options: LinkOptions, iface2: CoreInterface = None
) -> None:
"""
Apply tc queing disciplines using linkconfig.
"""
linux_bridge = CoreNetwork(self.session)
linux_bridge.up = True
linux_bridge.linkconfig(iface, options, iface2)
del linux_bridge
def next_iface_id(self) -> int:
with self.lock:
while self.iface_id in self.ifaces:
@ -245,7 +233,7 @@ class Rj45Node(CoreNodeBase):
"""
super().__init__(session, _id, name, server)
self.iface: CoreInterface = CoreInterface(
session, self, name, name, mtu, server
session, name, name, mtu, server, self
)
self.iface.transport_type = TransportType.RAW
self.lock: threading.RLock = threading.RLock()
@ -450,3 +438,12 @@ class Rj45Node(CoreNodeBase):
def cmd(self, args: str, wait: bool = True, shell: bool = False) -> str:
raise CoreError("rj45 does not support cmds")
def create_dir(self, dir_path: Path) -> None:
raise CoreError("rj45 does not support creating directories")
def create_file(self, file_path: Path, contents: str, mode: int = 0o644) -> None:
raise CoreError("rj45 does not support creating files")
def copy_file(self, src_path: Path, dst_path: Path, mode: int = None) -> None:
raise CoreError("rj45 does not support copying files")

557
daemon/poetry.lock generated
View file

@ -16,16 +16,17 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
[[package]]
name = "attrs"
version = "20.1.0"
version = "21.4.0"
description = "Classes Without Boilerplate"
category = "dev"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
[package.extras]
dev = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "sphinx", "sphinx-rtd-theme", "pre-commit"]
docs = ["sphinx", "sphinx-rtd-theme", "zope.interface"]
tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
dev = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface", "furo", "sphinx", "sphinx-notfound-page", "pre-commit", "cloudpickle"]
docs = ["furo", "sphinx", "zope.interface", "sphinx-notfound-page"]
tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "zope.interface", "cloudpickle"]
tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "mypy", "pytest-mypy-plugins", "cloudpickle"]
[[package]]
name = "bcrypt"
@ -62,7 +63,7 @@ d = ["aiohttp (>=3.3.2)", "aiohttp-cors"]
[[package]]
name = "cffi"
version = "1.14.2"
version = "1.15.0"
description = "Foreign Function Interface for Python calling C code."
category = "main"
optional = false
@ -81,15 +82,19 @@ python-versions = ">=3.6"
[[package]]
name = "click"
version = "7.1.2"
version = "8.0.3"
description = "Composable command line interface toolkit"
category = "dev"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
python-versions = ">=3.6"
[package.dependencies]
colorama = {version = "*", markers = "platform_system == \"Windows\""}
importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
[[package]]
name = "colorama"
version = "0.4.3"
version = "0.4.4"
description = "Cross-platform colored terminal text."
category = "dev"
optional = false
@ -97,27 +102,26 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
[[package]]
name = "cryptography"
version = "3.0"
version = "36.0.1"
description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers."
category = "main"
optional = false
python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*"
python-versions = ">=3.6"
[package.dependencies]
cffi = ">=1.8,<1.11.3 || >1.11.3"
six = ">=1.4.1"
cffi = ">=1.12"
[package.extras]
docs = ["sphinx (>=1.6.5,!=1.8.0,!=3.1.0,!=3.1.1)", "sphinx-rtd-theme"]
docstest = ["doc8", "pyenchant (>=1.6.11)", "twine (>=1.12.0)", "sphinxcontrib-spelling (>=4.0.1)"]
idna = ["idna (>=2.1)"]
docstest = ["pyenchant (>=1.6.11)", "twine (>=1.12.0)", "sphinxcontrib-spelling (>=4.0.1)"]
pep8test = ["black", "flake8", "flake8-import-order", "pep8-naming"]
sdist = ["setuptools_rust (>=0.11.4)"]
ssh = ["bcrypt (>=3.1.5)"]
test = ["pytest (>=3.6.0,!=3.9.0,!=3.9.1,!=3.9.2)", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,!=3.79.2)"]
test = ["pytest (>=6.2.0)", "pytest-cov", "pytest-subtests", "pytest-xdist", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,!=3.79.2)"]
[[package]]
name = "dataclasses"
version = "0.7"
version = "0.8"
description = "A backport of the dataclasses module for Python 3.6"
category = "main"
optional = false
@ -125,7 +129,7 @@ python-versions = ">=3.6, <3.7"
[[package]]
name = "distlib"
version = "0.3.1"
version = "0.3.4"
description = "Distribution utilities"
category = "dev"
optional = false
@ -149,11 +153,15 @@ testing = ["mock (>=2.0.0,<3.0)"]
[[package]]
name = "filelock"
version = "3.0.12"
version = "3.4.1"
description = "A platform independent file lock."
category = "dev"
optional = false
python-versions = "*"
python-versions = ">=3.6"
[package.extras]
docs = ["furo (>=2021.8.17b43)", "sphinx (>=4.1)", "sphinx-autodoc-typehints (>=1.12)"]
testing = ["covdefaults (>=1.2.0)", "coverage (>=4)", "pytest (>=4)", "pytest-cov", "pytest-timeout (>=1.4.2)"]
[[package]]
name = "flake8"
@ -194,7 +202,7 @@ protobuf = ">=3.5.0.post1"
[[package]]
name = "identify"
version = "1.4.28"
version = "1.6.2"
description = "File identification library for Python"
category = "dev"
optional = false
@ -205,32 +213,35 @@ license = ["editdistance"]
[[package]]
name = "importlib-metadata"
version = "1.7.0"
version = "4.8.3"
description = "Read metadata from Python packages"
category = "dev"
optional = false
python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
python-versions = ">=3.6"
[package.dependencies]
typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
zipp = ">=0.5"
[package.extras]
docs = ["sphinx", "rst.linker"]
testing = ["packaging", "pep517", "importlib-resources (>=1.3)"]
docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
perf = ["ipython"]
testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "packaging", "pep517", "pyfakefs", "flufl.flake8", "pytest-perf (>=0.9.2)", "pytest-black (>=0.3.7)", "pytest-mypy", "importlib-resources (>=1.3)"]
[[package]]
name = "importlib-resources"
version = "3.0.0"
version = "5.4.0"
description = "Read resources from Python packages"
category = "dev"
optional = false
python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
python-versions = ">=3.6"
[package.dependencies]
zipp = {version = ">=0.4", markers = "python_version < \"3.8\""}
zipp = {version = ">=3.1.0", markers = "python_version < \"3.10\""}
[package.extras]
docs = ["sphinx", "rst.linker", "jaraco.packaging"]
docs = ["sphinx", "jaraco.packaging (>=8.2)", "rst.linker (>=1.9)"]
testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "pytest-black (>=0.3.7)", "pytest-mypy"]
[[package]]
name = "invoke"
@ -285,11 +296,11 @@ lingua = ["lingua"]
[[package]]
name = "markupsafe"
version = "1.1.1"
version = "2.0.1"
description = "Safely add untrusted strings to HTML/XML markup."
category = "main"
optional = false
python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
python-versions = ">=3.6"
[[package]]
name = "mccabe"
@ -314,7 +325,7 @@ test = ["pytest", "pytest-cov"]
[[package]]
name = "more-itertools"
version = "8.4.0"
version = "8.12.0"
description = "More routines for operating on iterables, beyond itertools"
category = "dev"
optional = false
@ -330,7 +341,7 @@ python-versions = "*"
[[package]]
name = "nodeenv"
version = "1.4.0"
version = "1.6.0"
description = "Node.js virtual environment builder"
category = "dev"
optional = false
@ -338,19 +349,18 @@ python-versions = "*"
[[package]]
name = "packaging"
version = "20.4"
version = "21.3"
description = "Core utilities for Python packages"
category = "dev"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
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@ -375,6 +385,18 @@ category = "main"
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pyparsing = [
{file = "pyparsing-2.4.7-py2.py3-none-any.whl", hash = "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"},
{file = "pyparsing-2.4.7.tar.gz", hash = "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1"},
{file = "pyparsing-3.0.7-py3-none-any.whl", hash = "sha256:a6c06a88f252e6c322f65faf8f418b16213b51bdfaece0524c1c1bc30c63c484"},
{file = "pyparsing-3.0.7.tar.gz", hash = "sha256:18ee9022775d270c55187733956460083db60b37d0d0fb357445f3094eed3eea"},
]
pyproj = [
{file = "pyproj-2.6.1.post1-cp35-cp35m-macosx_10_6_intel.whl", hash = "sha256:457ad3856014ac26af1d86def6dc8cf69c1fa377b6e2fd6e97912d51cf66bdbe"},
@ -1118,22 +1191,26 @@ pyyaml = [
{file = "PyYAML-5.4.tar.gz", hash = "sha256:3c49e39ac034fd64fd576d63bb4db53cda89b362768a67f07749d55f128ac18a"},
]
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{file = "six-1.15.0.tar.gz", hash = "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259"},
{file = "six-1.16.0-py2.py3-none-any.whl", hash = "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"},
{file = "six-1.16.0.tar.gz", hash = "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926"},
]
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{file = "toml-0.10.1.tar.gz", hash = "sha256:926b612be1e5ce0634a2ca03470f95169cf16f939018233a670519cb4ac58b0f"},
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View file

@ -1,6 +1,6 @@
[tool.poetry]
name = "core"
version = "8.0.0"
version = "8.1.0"
description = "CORE Common Open Research Emulator"
authors = ["Boeing Research and Technology"]
license = "BSD-2-Clause"
@ -25,7 +25,7 @@ lxml = "4.6.5"
mako = "1.1.3"
netaddr = "0.7.19"
pillow = "8.3.2"
protobuf = "3.12.2"
protobuf = "3.19.4"
pyproj = "2.6.1.post1"
pyyaml = "5.4"

View file

@ -130,12 +130,6 @@ class TestCore:
assert 0 in node1.ifaces
assert 0 in node2.ifaces
# check interface parameters
iface = node1.get_iface(0)
iface.setparam("test", 1)
assert iface.getparam("test") == 1
assert iface.getparams()
# delete interface and test that if no longer exists
node1.delete_iface(0)
assert 0 not in node1.ifaces

View file

@ -1,10 +1,18 @@
from typing import Tuple
import pytest
from core.emulator.data import IpPrefixes, LinkOptions
from core.emulator.session import Session
from core.errors import CoreError
from core.nodes.base import CoreNode
from core.nodes.network import SwitchNode
INVALID_ID: int = 100
LINK_OPTIONS: LinkOptions = LinkOptions(
delay=50, bandwidth=5000000, loss=25, dup=25, jitter=10, buffer=100
)
def create_ptp_network(
session: Session, ip_prefixes: IpPrefixes
@ -25,7 +33,7 @@ def create_ptp_network(
class TestLinks:
def test_add_ptp(self, session: Session, ip_prefixes: IpPrefixes):
def test_add_node_to_node(self, session: Session, ip_prefixes: IpPrefixes):
# given
node1 = session.add_node(CoreNode)
node2 = session.add_node(CoreNode)
@ -33,11 +41,19 @@ class TestLinks:
iface2_data = ip_prefixes.create_iface(node2)
# when
session.add_link(node1.id, node2.id, iface1_data, iface2_data)
iface1, iface2 = session.add_link(
node1.id, node2.id, iface1_data, iface2_data, options=LINK_OPTIONS
)
# then
assert node1.get_iface(iface1_data.id)
assert node2.get_iface(iface2_data.id)
assert iface1 is not None
assert iface2 is not None
assert iface1.local_options == LINK_OPTIONS
assert iface1.has_local_netem
assert iface2.local_options == LINK_OPTIONS
assert iface2.has_local_netem
def test_add_node_to_net(self, session: Session, ip_prefixes: IpPrefixes):
# given
@ -46,11 +62,16 @@ class TestLinks:
iface1_data = ip_prefixes.create_iface(node1)
# when
session.add_link(node1.id, node2.id, iface1_data=iface1_data)
iface, _ = session.add_link(
node1.id, node2.id, iface1_data=iface1_data, options=LINK_OPTIONS
)
# then
assert node2.links()
assert node1.get_iface(iface1_data.id)
assert iface is not None
assert iface.local_options == LINK_OPTIONS
assert iface.has_local_netem
def test_add_net_to_node(self, session: Session, ip_prefixes: IpPrefixes):
# given
@ -59,11 +80,16 @@ class TestLinks:
iface2_data = ip_prefixes.create_iface(node2)
# when
session.add_link(node1.id, node2.id, iface2_data=iface2_data)
_, iface = session.add_link(
node1.id, node2.id, iface2_data=iface2_data, options=LINK_OPTIONS
)
# then
assert node1.links()
assert node2.get_iface(iface2_data.id)
assert iface is not None
assert iface.local_options == LINK_OPTIONS
assert iface.has_local_netem
def test_add_net_to_net(self, session):
# given
@ -71,147 +97,151 @@ class TestLinks:
node2 = session.add_node(SwitchNode)
# when
session.add_link(node1.id, node2.id)
iface, _ = session.add_link(node1.id, node2.id, options=LINK_OPTIONS)
# then
assert node1.links()
assert iface is not None
assert iface.local_options == LINK_OPTIONS
assert iface.options == LINK_OPTIONS
assert iface.has_local_netem
assert iface.has_netem
def test_add_node_to_node_uni(self, session: Session, ip_prefixes: IpPrefixes):
# given
node1 = session.add_node(CoreNode)
node2 = session.add_node(CoreNode)
iface1_data = ip_prefixes.create_iface(node1)
iface2_data = ip_prefixes.create_iface(node2)
link_options1 = LinkOptions(
delay=50,
bandwidth=5000000,
loss=25,
dup=25,
jitter=10,
buffer=100,
unidirectional=True,
)
link_options2 = LinkOptions(
delay=51,
bandwidth=5000001,
loss=26,
dup=26,
jitter=11,
buffer=101,
unidirectional=True,
)
# when
iface1, iface2 = session.add_link(
node1.id, node2.id, iface1_data, iface2_data, link_options1
)
session.update_link(
node2.id, node1.id, iface2_data.id, iface1_data.id, link_options2
)
# then
assert node1.get_iface(iface1_data.id)
assert node2.get_iface(iface2_data.id)
assert iface1 is not None
assert iface2 is not None
assert iface1.local_options == link_options1
assert iface1.has_local_netem
assert iface2.local_options == link_options2
assert iface2.has_local_netem
def test_update_node_to_net(self, session: Session, ip_prefixes: IpPrefixes):
# given
delay = 50
bandwidth = 5000000
loss = 25
dup = 25
jitter = 10
buffer = 100
node1 = session.add_node(CoreNode)
node2 = session.add_node(SwitchNode)
iface1_data = ip_prefixes.create_iface(node1)
session.add_link(node1.id, node2.id, iface1_data)
iface1 = node1.get_iface(iface1_data.id)
assert iface1.getparam("delay") != delay
assert iface1.getparam("bw") != bandwidth
assert iface1.getparam("loss") != loss
assert iface1.getparam("duplicate") != dup
assert iface1.getparam("jitter") != jitter
assert iface1.getparam("buffer") != buffer
iface1, _ = session.add_link(node1.id, node2.id, iface1_data)
assert iface1.local_options != LINK_OPTIONS
# when
options = LinkOptions(
delay=delay,
bandwidth=bandwidth,
loss=loss,
dup=dup,
jitter=jitter,
buffer=buffer,
)
session.update_link(
node1.id, node2.id, iface1_id=iface1_data.id, options=options
node1.id, node2.id, iface1_id=iface1_data.id, options=LINK_OPTIONS
)
# then
assert iface1.getparam("delay") == delay
assert iface1.getparam("bw") == bandwidth
assert iface1.getparam("loss") == loss
assert iface1.getparam("duplicate") == dup
assert iface1.getparam("jitter") == jitter
assert iface1.getparam("buffer") == buffer
assert iface1.local_options == LINK_OPTIONS
assert iface1.has_local_netem
def test_update_net_to_node(self, session: Session, ip_prefixes: IpPrefixes):
# given
delay = 50
bandwidth = 5000000
loss = 25
dup = 25
jitter = 10
buffer = 100
node1 = session.add_node(SwitchNode)
node2 = session.add_node(CoreNode)
iface2_data = ip_prefixes.create_iface(node2)
session.add_link(node1.id, node2.id, iface2_data=iface2_data)
iface2 = node2.get_iface(iface2_data.id)
assert iface2.getparam("delay") != delay
assert iface2.getparam("bw") != bandwidth
assert iface2.getparam("loss") != loss
assert iface2.getparam("duplicate") != dup
assert iface2.getparam("jitter") != jitter
assert iface2.getparam("buffer") != buffer
_, iface2 = session.add_link(node1.id, node2.id, iface2_data=iface2_data)
assert iface2.local_options != LINK_OPTIONS
# when
options = LinkOptions(
delay=delay,
bandwidth=bandwidth,
loss=loss,
dup=dup,
jitter=jitter,
buffer=buffer,
)
session.update_link(
node1.id, node2.id, iface2_id=iface2_data.id, options=options
node1.id, node2.id, iface2_id=iface2_data.id, options=LINK_OPTIONS
)
# then
assert iface2.getparam("delay") == delay
assert iface2.getparam("bw") == bandwidth
assert iface2.getparam("loss") == loss
assert iface2.getparam("duplicate") == dup
assert iface2.getparam("jitter") == jitter
assert iface2.getparam("buffer") == buffer
assert iface2.local_options == LINK_OPTIONS
assert iface2.has_local_netem
def test_update_ptp(self, session: Session, ip_prefixes: IpPrefixes):
# given
delay = 50
bandwidth = 5000000
loss = 25
dup = 25
jitter = 10
buffer = 100
node1 = session.add_node(CoreNode)
node2 = session.add_node(CoreNode)
iface1_data = ip_prefixes.create_iface(node1)
iface2_data = ip_prefixes.create_iface(node2)
session.add_link(node1.id, node2.id, iface1_data, iface2_data)
iface1 = node1.get_iface(iface1_data.id)
iface2 = node2.get_iface(iface2_data.id)
assert iface1.getparam("delay") != delay
assert iface1.getparam("bw") != bandwidth
assert iface1.getparam("loss") != loss
assert iface1.getparam("duplicate") != dup
assert iface1.getparam("jitter") != jitter
assert iface1.getparam("buffer") != buffer
assert iface2.getparam("delay") != delay
assert iface2.getparam("bw") != bandwidth
assert iface2.getparam("loss") != loss
assert iface2.getparam("duplicate") != dup
assert iface2.getparam("jitter") != jitter
assert iface2.getparam("buffer") != buffer
iface1, iface2 = session.add_link(node1.id, node2.id, iface1_data, iface2_data)
assert iface1.local_options != LINK_OPTIONS
assert iface2.local_options != LINK_OPTIONS
# when
options = LinkOptions(
delay=delay,
bandwidth=bandwidth,
loss=loss,
dup=dup,
jitter=jitter,
buffer=buffer,
session.update_link(
node1.id, node2.id, iface1_data.id, iface2_data.id, LINK_OPTIONS
)
session.update_link(node1.id, node2.id, iface1_data.id, iface2_data.id, options)
# then
assert iface1.getparam("delay") == delay
assert iface1.getparam("bw") == bandwidth
assert iface1.getparam("loss") == loss
assert iface1.getparam("duplicate") == dup
assert iface1.getparam("jitter") == jitter
assert iface1.getparam("buffer") == buffer
assert iface2.getparam("delay") == delay
assert iface2.getparam("bw") == bandwidth
assert iface2.getparam("loss") == loss
assert iface2.getparam("duplicate") == dup
assert iface2.getparam("jitter") == jitter
assert iface2.getparam("buffer") == buffer
assert iface1.local_options == LINK_OPTIONS
assert iface1.has_local_netem
assert iface2.local_options == LINK_OPTIONS
assert iface2.has_local_netem
def test_delete_ptp(self, session: Session, ip_prefixes: IpPrefixes):
def test_update_net_to_net(self, session: Session, ip_prefixes: IpPrefixes):
# given
node1 = session.add_node(SwitchNode)
node2 = session.add_node(SwitchNode)
iface1, _ = session.add_link(node1.id, node2.id)
assert iface1.local_options != LINK_OPTIONS
# when
session.update_link(node1.id, node2.id, options=LINK_OPTIONS)
# then
assert iface1.local_options == LINK_OPTIONS
assert iface1.has_local_netem
assert iface1.options == LINK_OPTIONS
assert iface1.has_netem
def test_clear_net_to_net(self, session: Session, ip_prefixes: IpPrefixes):
# given
node1 = session.add_node(SwitchNode)
node2 = session.add_node(SwitchNode)
iface1, _ = session.add_link(node1.id, node2.id, options=LINK_OPTIONS)
assert iface1.local_options == LINK_OPTIONS
assert iface1.has_local_netem
assert iface1.options == LINK_OPTIONS
assert iface1.has_netem
# when
options = LinkOptions(delay=0, bandwidth=0, loss=0.0, dup=0, jitter=0, buffer=0)
session.update_link(node1.id, node2.id, options=options)
# then
assert iface1.local_options.is_clear()
assert not iface1.has_local_netem
assert iface1.options.is_clear()
assert not iface1.has_netem
def test_delete_node_to_node(self, session: Session, ip_prefixes: IpPrefixes):
# given
node1 = session.add_node(CoreNode)
node2 = session.add_node(CoreNode)
@ -255,3 +285,82 @@ class TestLinks:
# then
assert iface2_data.id not in node2.ifaces
def test_delete_net_to_net(self, session: Session, ip_prefixes: IpPrefixes):
# given
node1 = session.add_node(SwitchNode)
node2 = session.add_node(SwitchNode)
session.add_link(node1.id, node2.id)
assert node1.get_linked_iface(node2)
# when
session.delete_link(node1.id, node2.id)
# then
assert not node1.get_linked_iface(node2)
def test_delete_node_error(self, session: Session, ip_prefixes: IpPrefixes):
# given
node1 = session.add_node(SwitchNode)
node2 = session.add_node(SwitchNode)
session.add_link(node1.id, node2.id)
assert node1.get_linked_iface(node2)
# when
with pytest.raises(CoreError):
session.delete_link(node1.id, INVALID_ID)
with pytest.raises(CoreError):
session.delete_link(INVALID_ID, node2.id)
def test_delete_net_to_net_error(self, session: Session, ip_prefixes: IpPrefixes):
# given
node1 = session.add_node(SwitchNode)
node2 = session.add_node(SwitchNode)
node3 = session.add_node(SwitchNode)
session.add_link(node1.id, node2.id)
assert node1.get_linked_iface(node2)
# when
with pytest.raises(CoreError):
session.delete_link(node1.id, node3.id)
def test_delete_node_to_net_error(self, session: Session, ip_prefixes: IpPrefixes):
# given
node1 = session.add_node(CoreNode)
node2 = session.add_node(SwitchNode)
node3 = session.add_node(SwitchNode)
iface1_data = ip_prefixes.create_iface(node1)
iface1, _ = session.add_link(node1.id, node2.id, iface1_data)
assert iface1
# when
with pytest.raises(CoreError):
session.delete_link(node1.id, node3.id)
def test_delete_net_to_node_error(self, session: Session, ip_prefixes: IpPrefixes):
# given
node1 = session.add_node(SwitchNode)
node2 = session.add_node(CoreNode)
node3 = session.add_node(SwitchNode)
iface2_data = ip_prefixes.create_iface(node2)
_, iface2 = session.add_link(node1.id, node2.id, iface2_data=iface2_data)
assert iface2
# when
with pytest.raises(CoreError):
session.delete_link(node1.id, node3.id)
def test_delete_node_to_node_error(self, session: Session, ip_prefixes: IpPrefixes):
# given
node1 = session.add_node(CoreNode)
node2 = session.add_node(CoreNode)
node3 = session.add_node(SwitchNode)
iface1_data = ip_prefixes.create_iface(node1)
iface2_data = ip_prefixes.create_iface(node2)
iface1, iface2 = session.add_link(node1.id, node2.id, iface1_data, iface2_data)
assert iface1
assert iface2
# when
with pytest.raises(CoreError):
session.delete_link(node1.id, node3.id)

View file

@ -168,7 +168,6 @@ class ExampleService(ConfigService):
]
def get_text_template(self, name: str) -> str:
if name == "example-start.sh":
return """
# sample script 1
# node id(${node.id}) name(${node.name})

View file

@ -24,16 +24,6 @@ Verified:
* Ubuntu - 18.04, 20.04
* CentOS - 7.8, 8.0
> **NOTE:** Ubuntu 20.04 requires installing legacy ebtables for WLAN functionality
Enabling ebtables legacy:
```shell
sudo apt install ebtables
update-alternatives --set ebtables /usr/sbin/ebtables-legacy
```
> **NOTE:** CentOS 8 does not provide legacy ebtables support, WLAN will not function properly
> **NOTE:** CentOS 8 does not have the netem kernel mod available by default
CentOS 8 Enabled netem:
@ -130,6 +120,14 @@ First we will need to clone and navigate to the CORE repo.
# clone CORE repo
git clone https://github.com/coreemu/core.git
cd core
# install dependencies to run installation task
./setup.sh
# run the following or open a new terminal
source ~/.bashrc
# Ubuntu
inv install
# CentOS
./install.sh -p /usr
```
First you can use `setup.sh` as a convenience to install tooling for running invoke tasks:
@ -140,7 +138,7 @@ First you can use `setup.sh` as a convenience to install tooling for running inv
* python3, pip, venv
* pipx 0.16.4 via pip
* invoke 1.4.1 via pipx
* poetry 1.1.7 via pipx
* poetry 1.1.12 via pipx
Then you can run `inv install <options>`:
* installs system dependencies for building core

View file

@ -1,8 +1,5 @@
#!/bin/bash
# exit on error
set -e
# install pre-reqs using yum/apt
if command -v apt &> /dev/null
then
@ -23,4 +20,4 @@ python3 -m pip install --user pipx==0.16.4
python3 -m pipx ensurepath
export PATH=$PATH:~/.local/bin
pipx install invoke==1.4.1
pipx install poetry==1.1.7
pipx install poetry==1.1.12