TCP/IP stack overhaul (Step 1 of 4)

Guide target £2,300

Our network stack dates back to 1997, and the Internet is a lot bigger and scarier than it was back then. Twenty years on and it’s time to bring it in-line with modern usage and security requirements. This first part is shoring-up some of the biggest holes to buy some time to collect bounties for new features and prepare developers for the larger IPv6 address space.

Details

• Evaluate and port a recent TLS implementation
  • May optionally support the deprecated SSL methods too
  • Should support and check certificate chains based on a trusted list held on disc in the InetDbase
  • Prompt users whether in the desktop or command line if the chain is incomplete
  • ROOL has the source code to the previous SSLeay library
• Port the chosen security library to fit within RISC OS
• Update the AcornSSL module to use this new library
  • This will allow clients of AcornHTTP to fetch data programmatically using ‘https’ addresses
  • Optionally the SecureSockets API can be emulated also
• Actively remove/switch out the vulnerable T/TCP protocol from the Internet module
• Introduce IPv6 library support functions defined in RFC2553 for Berkeley sockets
  • In the ‘inetlib’ internet supporting library
  • In the TCP/IP library header files

Deliverables

• New (or updated) library source code in C using standard RISC OS tools/shared makefiles
• Updated C source code to AcornSSL
• Database changes to the !Internet component to maintain a trusted root CA
• Developer documentation for inclusion with the library illustrating its use with a minimalist client
• Updated TCP/IP library documentation explaining the IPv6 extensions

Donations	37
Total	£2,743.00
State	Underway
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