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The documentation seems to disagree with the code with regards to the protocol information header on packets received from the kernel. ReadFrame suggests the the protocol information header is present "The buffer supplied must be large enough to hold the whole frame including a 4 byte header returned by the kernel.", though the interfaces are created with IFF_NO_PI, so the header is not present. Similarly the documentation claims to detect and report truncated packets via returning ErrTruncated but doesn't (and afaik isn't possible without looking at the protocol information header).

Hello! I'd like to add a patch to allow custom names for TAP/TUN devices created with this package. I already have it working on Linux, but I'm unsure if it's even possible on BSD.

Do you have any ideas, @ebfe ?

For the API, I was thinking something along the lines of: func NewTap(name string) (*Tap, error). The existing OpenTap() function would just invoke NewTap("").

Would you accept a PR for this functionality, @davecheney ?

Thanks for your time.

EDIT: my initial work-in-progress commit is here: https://github.com/mdlayher/taptun/commit/fb1ed47abe90a671166ad22f60383705ed5daa69.

As of now, this code doesn't have any sort of license attached to it. I assume this was just an oversight, as there are licenses on other pkg packages.

@davecheney , could you please add your preferred license to this repo? Thanks.