SFTP support for subsecond times

Demi Marie Obenour demiobenour at gmail.com
Mon May 22 05:45:07 AEST 2023


On 5/10/23 08:50, Lucas Holt wrote:
> On 5/10/23 4:36 AM, Antonio Larrosa wrote:
>> Hello,
>>
>> This is probably a long email, but please bear with me. I plan to
>> submit a patch and would like to explain what I will do before doing
>> it so I don't lose time if there's some flaw in my plan.
>>
>> I currently use sshfs to mount directories from some computers and a
>> NAS into other computers. I recently noticed that when copying some
>> files from one computer into one of these sshfs mounted directories
>> (supposedly preserving times) the files are losing the subsecond part
>> of mtime (and atime). So, for example, `stat foo` shows this locally:
> 
> My first thought after reading this is why aren't you using NFS?
> 
> I can't speak to what patches might get accepted, but it does seem like 
> this is the wrong tool for the job.

Not sure what Antonio’s reason is, but using NFS securely is much harder
than SSH on all systems I know of, and impossible on OpenBSD without a VPN
tunnel.
-- 
Sincerely,
Demi Marie Obenour (she/her/hers)
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