End-application improvements for the tun library use#139
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iamtakingiteasy wants to merge 1 commit intoWireGuard:masterfrom
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End-application improvements for the tun library use#139iamtakingiteasy wants to merge 1 commit intoWireGuard:masterfrom
iamtakingiteasy wants to merge 1 commit intoWireGuard:masterfrom
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iamtakingiteasy
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Cleanup: removed |
iamtakingiteasy
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Added ICMP checksum support, useful for handling ICMP fragmentation needed and other errors when doing NAT. Checksum of the embedded packet in ICMP body is not handled however and must be updated in separate call, if necessary. |
Add backwards-compatible functional options support to native tun interfaces. Add support for indicating carrier presence [linux only]. Add `SetCarrier(bool) error` to tun.Device interface for changing carrier state [linux only]. Add option to create tun device without carrier, or with carrier present [linux only]. Merge src/dst fields in checksum computation to use larger loop unrolls. Export checksum functions to applications, add ICMP checksumming. Add option to disable tun offloads [linux only]. Add option to enforce tun checksum computation for outgoing packets [all platforms]. Add `MinOffset() int` to tun.Device interface, informing library users of the required offset. Signed-off-by: Alexander Tumin <iamtakingiteasy@eientei.org>
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Fixed IPv6 checksum/payload length calculation |
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Adds some minor quality of life improvements for other applications relying on the widely ported tun implementation, namely:
CreateTUNshould be backwards compatible for current users.SetCarrier(bool) errorontun.Deviceand a functional option to provide initial state.MinOffset() intontun.Deviceto indicate required platform-specific offset in buffers to application.New methods in
tun.Devicemay be breaking to current third-party implementors of this interface, if there are any.