[Feature Request] host-uds=all with support for SCM_RIGHTS FD sharing.
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type: enhancement
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Description
When using `-host-uds=all` allow for `-host-uds=all,fdshare` or similar enabling sharing of FDs across a UDS which crosses the gvisor boundary back and forth through the use of SCM_RIGHTS.
Will allow for protocols which utilize SCM_RIGHTS to share mmap'ed FDs to work between gvisor instances and gvisor<>host.
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