An in-progress report about TCP-IP related test scenarios.

Project Status - Active

Goal - to share various aspects of TCP-IP encountered while constructing test scenarios for FreeBSD network stack's regression testing made during GSOC-2016.

• TCP options establishment ✔
• Connection close ✔
• Adding support for IP based protocols, such as -
  • DCCP
  • SCTP ✔ (Was already done).
• Path MTU discovery.
• Selective Acknowledgements.
• Blocking system calls. ✔
• Find a way of specifying the window sizes of clients in the best possible manner.
• Shutdown.

• Scenario - TCP flags
• The 5 tests for testing TCP flags are complete and have been merged into the main repository.

• Scenario - Connection close
• The 3 tests for testing TCP connection close are complete and have been merged into the main repository.

feat/close-fin	Pull Request yet to be sent.
feat/close-read-data-fin	Pull Request Pending	Merged ✔
feat/close-unread-date-fin	Pull Request Pending	Merged ✔

• Scenario - Blocking calls and ICMP
• Unfortunately, I got to know late that blocking calls are not supported in FreeBSD. As a result, the test made for blocking-accept is useless as of now.
  UPDATE: As pointed out by Michael, blocking calls are now working as of this commit, thanks to him :D

feat/blocking-accept

Check if it works

Pull Request Pending

Merged ✔

• The test for testing handling of incoming ICMP packets. The pull request is yet to be merged.

feat/icmp

Pull Request Pending

Merged ✔

• Tasks for next week
  • Test for SACK (Selective Acknowledgements).

• Summary
• Scenario - PATH MTU Discovery

• Summary
• Scenario -
  • Blocking System Calls
  • Shutdown

feat/blocking-accept	Pull Request Pending	Merged ✔
feat/blocking-read	Pull Request Pending	Merged ✔

Report-1.pdf

• Summary
• Scenario -

ShivanshRai