## Summary
- Network Hardware - Added base hardware module with NIC, SwitchPort, Node, Switch, and Link. Nodes and Switches have
fundamental services like ARP, ICMP, and PCAP running them by default.
- Network Transmission - Modelled OSI Model layers 1 through to 5 with various classes for creating network frames and
transmitting them from a Service/Application, down through the layers, over the wire, and back up through the layers to
a Service/Application another machine.
- system - Added the core structure of Application, Services, and Components. Also added a SoftwareManager and
SessionManager.
- #1706 - Got the core Node class build and working with ARP and the ability to ping another node. Added some basic tests in. Next job is to create the Node subclasses. Then move ARP and ICMP into a ser
- #1706 - Added some extra logging
- #1706 - Started adding the core node software required by all nodes. Made some tweaks to the Frame to have send and receive timestamp.
- #1706 - Got the code services, application, and process base classes stubbed out. Need them now so that I can leverage them for core node services required.
- #1706 - Tidied up the SysLog ARPCache, and ICMP classes and integrated them into the Node. Tidied up the base implementation of SoftwareManager and SessionManager. Tidies up the public API for Service
## Test process
Tests really asses how components fit together and that it all does work. They tests don't yet check that things like ICMP work, as in the ping is received and responded to.
## Checklist
- [X] This PR is linked to a **work item**
- [X] I have performed **self-review** of the code
- [X] I have written **tests** for any new functionality added with this PR
- [X] I have updated the **documentation** if this PR changes or adds functionality
- [X] I have written/updated **design docs** if this PR implements new functionality.
- [X] I have run **pre-commit** checks for code style
Related work items: #1706
## Summary
This PR implements an outline of accounts and domain controller. However, the main contribution is the permissions system and the changes to `SimComponent`. The domain skeleton will probably change after the node/folder/file/app/service classes exist.
The big idea of the permissions is that the simulator itself is built in a way that permits everything, i.e. the methods of each component that make something happen don't have any permissions checking. Therefore, if you can use primaite without any agents and you will essentially have superadmin, any action you perform will go through. The permissions come into play when you try to interact with the components via the actions. Every action has a configurable permission validator attached to it that will either allow or block the action.
For this reason, I've had to modify the way actions work. To keep everything neatly contained, there is a new Action class that holds a reference to both the action function itself but also to a permission validation function.
## Test process
Unit tests and integration tests.
I will write the design documentation for permissions and update the design for SimComponent once others are happy that the design makes sense.
## Checklist
- [x] This PR is linked to a **work item**
- [x] I have performed **self-review** of the code
- [x] I have written **tests** for any new functionality added with this PR
- [x] I have updated the **documentation** if this PR changes or adds functionality
- [x] I have updated the **changelog**
- [ ] I have written/updated **design docs** if this PR implements new functionality
- [x] I have run **pre-commit** checks for code style
Related work items: #1716
## Summary
- Added the primaite/simulator/network/transmission sub-package with modules for each layer. They come together to build a minimal but fairly realistic network Frame.
- A custom PrimaiteHeader has been included to hold primaite specific metadata required in transmission for reward function and RL agent downstream.
- Added some basic tests that check the proper configuration of Frames with matching headers for protocols.
- Updated the frame typehints in NIC and Link classes.
- Added documentation for the transport layer down to data link layer
## Test process
Unit tests check the frame has been configured correctly with the right headers for the right protocol.
## Checklist
- [X] This PR is linked to a **work item**
- [X] I have performed **self-review** of the code
- [X] I have written **tests** for any new functionality added with this PR
- [X] I have updated the **documentation** if this PR changes or adds functionality
- [X] I have written/updated **design docs** if this PR implements new functionality.
- [X] I have run **pre-commit** checks for code style
Related work items: #1724
