4 ms·

Great work! I can really appreciate the effort you likely put into re-implementing SCTP, since I'm currently working on implementing SCTP in Rust for the same

Great work! I can really appreciate the effort you likely put into re-implementing SCTP, since I'm currently working on implementing SCTP in Rust for the same reasons (WebRTC support). :)

jlaine 8y ago
That's good news, the WebRTC world is too much of a libusrsctp monoculture to my taste at the moment. Don't be surprised if you find some interesting edge cases in browsers as you stray from the beaten track :) https://bugzilla.mozilla.org/show_bug.cgi?id=1443032 https://bugzilla.mozilla.org/show_bug.cgi?id=1443032
- simmons 8y ago
  Yipes! That's good to know about, thanks. At the same time, I've also been surprised at how lenient the browsers are at accepting associations from my incomplete implementation (e.g. without the required SCTP extensions, etc.).
  - jlaine 8y ago
    I can confirm you can get data channels to work with zero SCTP extensions, I only added them afterwards! One implementation (libusrsctp-based) you might want to interop with is rawrtc. Like aiortc's datachannel-cli example, it features copy-and-paste signaling which makes testing easy. https://github.com/rawrtc/rawrtc https://github.com/rawrtc/rawrtc Lennart, rawrtc's author is very knowledgeable in all things DataChannels and active in the standardization process.
jswrenn 8y ago
I'm really eager for a SCTP/WebRTC implementation in Rust! I took a stab at it, and re-implementing SCTP was the obstacle that stalled me. Is your work on github/gitlab?
- simmons 8y ago
  Yes [1], but it's incomplete, needs a lot of TODO resolution and cleanup, (insert other scary disclaimers here), etc. I also have some slides from a presentation [2]. [1] https://github.com/simmons/webrtc-sctp https://github.com/simmons/webrtc-sctp [2] https://cafbit.com/post/rust_webrtc_data_channels/ https://cafbit.com/post/rust_webrtc_data_channels/
- mquander 8y ago
  If the reason you guys want a WebRTC implementation in Rust is to be able to write WebRTC server software in Rust, you might be interested in Janus -- it's a plugin-based C WebRTC server with a C ABI for plugins that you can easily write in Rust.
Sean-Der 8y ago
That's awesome simmons! I can't wait to see Rust/Python/Go/Node all talking directly to each other. I really want to see a world where P2P communication is common. It could really change how people design systems, have servers exchange data directly instead of overloading message brokers. Could have an even bigger impact on users! Instead we could see users exchanging files directly instead of depending on paid services! I am the author of https://github.com/pions/webrtc https://github.com/pions/webrtc we implemented SCTP, SRTP and working on DTLS now. So if you ever want to grab anything please do :) and always happy to chat if there is anything that could be better/any way we could help the rust implementation
- kodablah 8y ago
  > working on DTLS now Any info or branch where I can watch? I am watching your project closely and curious about the OpenSSL requirement for DTLS considering Go's quality crypto stack. Is the work you're talking about for removing this dependency? If not, I might take a stab at it.
  - Sean-Der 8y ago
    https://github.com/sean-der/dtls https://github.com/sean-der/dtls There isn't a DTLS implementation right now that is maintained, and adopting one would be more work then starting from scratch. I didn't know anything about TLS before I started, so learning as I go. I would love to work together on this! If you want to open a PR/issue I can give you commit access. Also join the Gophers slack and join the #pion channel, there is plenty of work to do and would love to split it with someone else :) Yes this will remove the OpenSSL dependency! I am really excited when people can build for any platform that Go is supported on. After that I also want to start shipping C APIs, hoping people can build lots of cool things with it then.
    - kodablah 8y ago
      I'll take a peek, but my schedule may not give me much time at the moment. > After that I also want to start shipping C APIs, hoping people can build lots of cool things with it then. I've found Go's FFI export story to be weak, especially on Windows.

Great work! I can really appreciate the effort you likely put into re-implementing SCTP, since I'm currently working on implementing SCTP in Rust for the same reasons (WebRTC support). :)

jlaine 8y ago

That's good news, the WebRTC world is too much of a libusrsctp monoculture to my taste at the moment. Don't be surprised if you find some interesting edge cases in browsers as you stray from the beaten track :) https://bugzilla.mozilla.org/show_bug.cgi?id=1443032 https://bugzilla.mozilla.org/show_bug.cgi?id=1443032

simmons 8y ago
Yipes! That's good to know about, thanks. At the same time, I've also been surprised at how lenient the browsers are at accepting associations from my incomplete implementation (e.g. without the required SCTP extensions, etc.).
- jlaine 8y ago
  I can confirm you can get data channels to work with zero SCTP extensions, I only added them afterwards! One implementation (libusrsctp-based) you might want to interop with is rawrtc. Like aiortc's datachannel-cli example, it features copy-and-paste signaling which makes testing easy. https://github.com/rawrtc/rawrtc https://github.com/rawrtc/rawrtc Lennart, rawrtc's author is very knowledgeable in all things DataChannels and active in the standardization process.

jswrenn 8y ago

I'm really eager for a SCTP/WebRTC implementation in Rust! I took a stab at it, and re-implementing SCTP was the obstacle that stalled me. Is your work on github/gitlab?

simmons 8y ago
Yes [1], but it's incomplete, needs a lot of TODO resolution and cleanup, (insert other scary disclaimers here), etc. I also have some slides from a presentation [2]. [1] https://github.com/simmons/webrtc-sctp https://github.com/simmons/webrtc-sctp [2] https://cafbit.com/post/rust_webrtc_data_channels/ https://cafbit.com/post/rust_webrtc_data_channels/
mquander 8y ago
If the reason you guys want a WebRTC implementation in Rust is to be able to write WebRTC server software in Rust, you might be interested in Janus -- it's a plugin-based C WebRTC server with a C ABI for plugins that you can easily write in Rust.

Sean-Der 8y ago

That's awesome simmons! I can't wait to see Rust/Python/Go/Node all talking directly to each other. I really want to see a world where P2P communication is common. It could really change how people design systems, have servers exchange data directly instead of overloading message brokers. Could have an even bigger impact on users! Instead we could see users exchanging files directly instead of depending on paid services! I am the author of https://github.com/pions/webrtc https://github.com/pions/webrtc we implemented SCTP, SRTP and working on DTLS now. So if you ever want to grab anything please do :) and always happy to chat if there is anything that could be better/any way we could help the rust implementation

kodablah 8y ago
> working on DTLS now Any info or branch where I can watch? I am watching your project closely and curious about the OpenSSL requirement for DTLS considering Go's quality crypto stack. Is the work you're talking about for removing this dependency? If not, I might take a stab at it.
- Sean-Der 8y ago
  https://github.com/sean-der/dtls https://github.com/sean-der/dtls There isn't a DTLS implementation right now that is maintained, and adopting one would be more work then starting from scratch. I didn't know anything about TLS before I started, so learning as I go. I would love to work together on this! If you want to open a PR/issue I can give you commit access. Also join the Gophers slack and join the #pion channel, there is plenty of work to do and would love to split it with someone else :) Yes this will remove the OpenSSL dependency! I am really excited when people can build for any platform that Go is supported on. After that I also want to start shipping C APIs, hoping people can build lots of cool things with it then.
  - kodablah 8y ago
    I'll take a peek, but my schedule may not give me much time at the moment. > After that I also want to start shipping C APIs, hoping people can build lots of cool things with it then. I've found Go's FFI export story to be weak, especially on Windows.