Page MenuHomeFreeBSD

vmgenid(4): Integrate as a random(4) source
ClosedPublic

Authored by cem on Dec 28 2019, 8:01 PM.
Tags
None
Referenced Files
Unknown Object (File)
Sat, Feb 14, 5:39 PM
Unknown Object (File)
Tue, Feb 10, 8:30 AM
Unknown Object (File)
Tue, Feb 10, 12:19 AM
Unknown Object (File)
Thu, Jan 22, 10:51 PM
Unknown Object (File)
Sun, Jan 18, 8:13 AM
Unknown Object (File)
Jan 17 2026, 4:22 AM
Unknown Object (File)
Jan 16 2026, 10:32 AM
Unknown Object (File)
Jan 14 2026, 11:46 AM
Subscribers

Details

Summary

The number is currently published by the vmgenid(4) driver and has no
"entropy," but should be integrated quickly on VM rewind events to avoid
duplicate sequences.

Test Plan

(If we think the entropy would be more valuable, we could restrict
publication of the GUID from vmgenid(4). I do not know if it is available
to unprivileged users in any other way.)

Diff Detail

Lint
Lint Passed
Unit
No Test Coverage
Build Status
Buildable 28353
Build 26444: arc lint + arc unit