io_uring_prep_recvmsg with sctp_recvmsg

[akm76]

How would I go about prepping an sctp specific RECV? sctp_recvmsg is a wrapper, sure, but what would be the right way of getting a hold of those sctp specific functions within liburing flow? Is there a snippet/example that demonstrates how to do it?

[espoal]

Please take what I say with a grain of salt: It seems SCTP is implemented on top of UDP, and the source seems to confirm this.

If that's true you can simply use the recvmsg opcode with the correct parameters. At least that's what I did to implement the QUIC protocol with io_uring.

In general for the syscalls that are not yet available it's worth to check if they are implemented by using more fundamental syscalls and some userland code in libc.