docs: added tutorial 5

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Blake Harnden 2023-06-06 15:06:41 -07:00
parent 9d88eba1f5
commit 0339073868
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@ -21,7 +21,7 @@ These are the items you should become familiar with for running all the tutorial
* Covers mobility interactions when using a simple 3 node wireless network
* [Tutorial 4 - Tests](tutorial4.md)
* Covers automating scenarios as tests to validate software
* [Tutorial 5 - Access Windows](tutorial5.md)
* [Tutorial 5 - RJ45 Node](tutorial5.md)
* Covers using the RJ45 node to connect a Windows OS
* [Tutorial 6 - Improve Visuals](tutorial6.md)
* Covers changing the look of a scenario within the CORE GUI

166
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# Tutorial 5 - RJ45 Node
## Overview
This tutorial will cover connecting CORE VM to a Windows host machine using a RJ45 node.
## Files
Below is the list of files used for this tutorial.
* scenario.xml - the scenario with RJ45 unassigned
* scenario.py- grpc script to create the RJ45 in simple CORE scenario
* client_for_windows.py - chat app client modified for windows
## Running with the Saved XML File
This section covers using the saved **scenario.xml** file to get and up and running.
* Configure the Windows host VM to have a bridged network adapter
<p align="center">
<img src="/static/tutorial5/VM-network-settings.png" width="80%">
</p>
* Make sure the **core-daemon** is running in a terminal
```shell
sudop core-daemon
```
* In another terminal run the GUI
```shell
core-gui
```
* Open the **scenario.xml** with the unassigned RJ45 node
<p align="center">
<img src="/static/tutorial5/rj45-unassigned.png" width="80%">
</p>
* Configure the RJ45 node name to use the bridged interface
<p align="center">
<img src="/static/tutorial5/configure-the-rj45.png" width="80%">
</p>
* After configuring the RJ45, run the scenario:
<p align="center">
<img src="/static/tutorial5/rj45-connector.png" width="80%">
</p>
* Double click node **n1** to open a terminal and add a route to the Windows host
```shell
ip route add 192.168.0.0/24 via 10.0.0.20
```
* On the Windows host using Windows command prompt with administrator privilege, add a route that uses the interface connected to the associated interface assigned to the RJ45 node
```shell
# if enp0s3 is ssigned 192.168.0.6/24
route add 10.0.0.0 mask 255.255.255.0 192.168.0.6
```
* Now you should be able to ping from the Windows host to **n1**
```shell
C:\WINDOWS\system32>ping 10.0.0.20
Pinging 10.0.0.20 with 32 bytes of data:
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Ping statistics for 10.0.0.20:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
```
* After pinging successfully, run the following in the **n1** terminal to start the chatapp server
```shell
export PATH=$PATH:/usr/local/bin
chatapp-server
```
* On the Windows host, run the **client_for_windows.py**
```shell
python3 client_for_windows.py -a 10.0.0.20
connected to server(10.0.0.20:9001) as client(192.168.0.6:49960)
>> .Hello WORLD
.Hello WORLD Again
.
```
* Observe output on **n1**
```shell
chat server listening on: :9001
[server] 192.168.0.6:49960 joining
[192.168.0.6:49960] Hello WORLD
[192.168.0.6:49960] Hello WORLD Again
```
* When finished, you can stop the CORE scenario and cleanup
* On the Windows host remove the added route
```shell
route delete 10.0.0.0
```
## Running with the gRPC Script
This section covers leveraging the gRPC script to get up and running.
* Configure the Windows host VM to have a bridged network adapter
<p align="center">
<img src="/static/tutorial5/VM-network-settings.png" width="80%">
</p>
* Make sure the **core-daemon** is running in a terminal
```shell
sudop core-daemon
```
* In another terminal run the GUI
```shell
core-gui
```
* Run the gRPC script in the VM
```shell
# use the desired interface name, in this case enp0s3
/opt/core/venv/bin/python scenario.py enp0s3
```
* In the **core-gui** connect to the running session that was created
<p align="center">
<img src="/static/tutorial5/rj45-connector.png" width="80%">
</p>
* Double click node **n1** to open a terminal and add a route to the Windows host
```shell
ip route add 192.168.0.0/24 via 10.0.0.20
```
* On the Windows host using Windows command prompt with administrator privilege, add a route that uses the interface connected to the associated interface assigned to the RJ45 node
```shell
# if enp0s3 is ssigned 192.168.0.6/24
route add 10.0.0.0 mask 255.255.255.0 192.168.0.6
```
* Now you should be able to ping from the Windows host to **n1**
```shell
C:\WINDOWS\system32>ping 10.0.0.20
Pinging 10.0.0.20 with 32 bytes of data:
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Reply from 10.0.0.20: bytes=32 time<1ms TTL=64
Ping statistics for 10.0.0.20:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
```
* After pinging successfully, run the following in the **n1** terminal to start the chatapp server
```shell
export PATH=$PATH:/usr/local/bin
chatapp-server
```
* On the Windows host, run the **client_for_windows.py**
```shell
python3 client_for_windows.py -a 10.0.0.20
connected to server(10.0.0.20:9001) as client(192.168.0.6:49960)
>> .Hello WORLD
.Hello WORLD Again
.
```
* Observe output on **n1**
```shell
chat server listening on: :9001
[server] 192.168.0.6:49960 joining
[192.168.0.6:49960] Hello WORLD
[192.168.0.6:49960] Hello WORLD Again
```
* When finished, you can stop the CORE scenario and cleanup
* On the Windows host remove the added route
```shell
route delete 10.0.0.0
```

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@ -43,6 +43,7 @@ nav:
- Setup: tutorials/setup.md
- Tutorial 1: tutorials/tutorial1.md
- Tutorial 4: tutorials/tutorial4.md
- Tutorial 5: tutorials/tutorial5.md
- Tutorial 6: tutorials/tutorial6.md
- Tutorial 7: tutorials/tutorial7.md
- Detailed Topics:

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import argparse
import select
import socket
import sys
DEFAULT_PORT: int = 9001
READ_SIZE: int = 4096
def prompt():
sys.stdout.write(">> ")
sys.stdout.flush()
class ChatClient:
def __init__(self, address, port):
self.address = address
self.port = port
def run(self):
server = socket.create_connection((self.address, self.port))
sockname = server.getsockname()
print(f"connected to server({self.address}:{self.port}) as client({sockname[0]}:{sockname[1]})")
sockets = [server]
prompt()
try:
while True:
read_sockets, write_socket, error_socket = select.select(sockets, [], [], 10)
for sock in read_sockets:
if sock == server:
message = server.recv(READ_SIZE)
if not message:
print("server closed")
sys.exit(1)
else:
print("\x1b[2K\r", end="")
print(message.decode().strip())
prompt()
# waiting for input
message = input(".")
server.sendall(f"{message}\n".encode())
except KeyboardInterrupt:
print("client exiting")
server.close()
def main():
parser = argparse.ArgumentParser(
description="chat app client",
formatter_class=argparse.ArgumentDefaultsHelpFormatter,
)
parser.add_argument("-a", "--address", help="address to listen on", required=True)
parser.add_argument("-p", "--port", type=int, help="port to listen on", default=DEFAULT_PORT)
args = parser.parse_args()
client = ChatClient(args.address, args.port)
client.run()
if __name__ == "__main__":
main()

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@ -0,0 +1,40 @@
import sys
from core.api.grpc import client, wrappers
from core.api.grpc.wrappers import NodeType, Position
def main():
if (len(sys.argv) != 2):
print("usage core-python scenario.py <interface-name>")
exit()
# interface helper
iface_helper = client.InterfaceHelper(ip4_prefix="10.0.0.0/24", ip6_prefix="2001::/64")
# create grpc client and connect
core = client.CoreGrpcClient()
core.connect()
# add session
session = core.create_session()
# create nodes
position = Position(x=100, y=100)
node1 = session.add_node(1, name="n1", position=position)
position = Position(x=300, y=100)
rj45 = session.add_node(2, name=sys.argv[1], _type=NodeType.RJ45, position=position)
# create link
iface1 = iface_helper.create_iface(node1.id, 0)
iface1.ip4 = "10.0.0.20"
iface1.ip6 = "2001::14"
rj45_iface1 = wrappers.Interface(0)
session.add_link(node1=node1, node2=rj45, iface1=iface1, iface2=rj45_iface1)
# start session
core.start_session(session)
if __name__ == "__main__":
main()

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<?xml version='1.0' encoding='UTF-8'?>
<scenario name="/tmp/tmp8mbqm1qx">
<networks>
<network id="2" name="unassigned" icon="" canvas="1" type="RJ45">
<position x="235.0" y="255.0" lat="47.5768484978344" lon="-122.12915765737347" alt="2.0"/>
</network>
</networks>
<devices>
<device id="1" name="n1" icon="" canvas="1" type="PC" class="" image="">
<position x="395.0" y="189.0" lat="47.57744843849355" lon="-122.12700170069158" alt="2.0"/>
<configservices>
<service name="DefaultRoute"/>
</configservices>
</device>
</devices>
<links>
<link node1="2" node2="1">
<iface1 id="0" name="unassigned"/>
<iface2 id="0" name="eth0" ip4="10.0.0.20" ip4_mask="24" ip6="2001::14" ip6_mask="64"/>
<options unidirectional="1"/>
</link>
<link node1="1" node2="2">
<iface1 id="0" name="eth0" ip4="10.0.0.20" ip4_mask="24" ip6="2001::14" ip6_mask="64"/>
<iface2 id="0" name="unassigned"/>
<options delay="0" bandwidth="0" loss="0.0" dup="0" jitter="0" unidirectional="1" buffer="0"/>
</link>
</links>
<configservice_configurations>
<service name="DefaultRoute" node="1"/>
</configservice_configurations>
<session_origin lat="47.579166412353516" lon="-122.13232421875" alt="2.0" scale="150.0"/>
<session_options>
<configuration name="controlnet" value=""/>
<configuration name="controlnet0" value=""/>
<configuration name="controlnet1" value=""/>
<configuration name="controlnet2" value=""/>
<configuration name="controlnet3" value=""/>
<configuration name="controlnet_updown_script" value=""/>
<configuration name="enablerj45" value="1"/>
<configuration name="preservedir" value="0"/>
<configuration name="enablesdt" value="0"/>
<configuration name="sdturl" value="tcp://127.0.0.1:50000/"/>
<configuration name="ovs" value="0"/>
<configuration name="platform_id_start" value="1"/>
<configuration name="nem_id_start" value="1"/>
<configuration name="link_enabled" value="1"/>
<configuration name="loss_threshold" value="30"/>
<configuration name="link_interval" value="1"/>
<configuration name="link_timeout" value="4"/>
<configuration name="mtu" value="0"/>
</session_options>
<session_metadata>
<configuration name="shapes" value="[]"/>
<configuration name="edges" value="[]"/>
<configuration name="hidden" value="[]"/>
<configuration name="canvas" value="{&quot;gridlines&quot;: true, &quot;canvases&quot;: [{&quot;id&quot;: 1, &quot;wallpaper&quot;: null, &quot;wallpaper_style&quot;: 1, &quot;fit_image&quot;: false, &quot;dimensions&quot;: [1000, 750]}]}"/>
</session_metadata>
<default_services>
<node type="mdr">
<service name="zebra"/>
<service name="OSPFv3MDR"/>
<service name="IPForward"/>
</node>
<node type="PC">
<service name="DefaultRoute"/>
</node>
<node type="prouter"/>
<node type="router">
<service name="zebra"/>
<service name="OSPFv2"/>
<service name="OSPFv3"/>
<service name="IPForward"/>
</node>
<node type="host">
<service name="DefaultRoute"/>
<service name="SSH"/>
</node>
</default_services>
</scenario>