Lennart Poettering
f7d3262844
Previously, we'd only authenticate "one" of the subordinate devices of a DM device, and which one was somewhat undefined, it would be what we find in slaves/ first. This is in particular a problem with dm-verity which generally has two subordinate devices: the data device and the hash device. Let's fix this properly. This means two things: 1. iterate through *all* subordinate devices of a DM device (i.e. iterate through the sysfs slaves/ subdir), not just one 2. permit configuring a list of gpt labels and gpt type uuids in the xattrs of mount points, so that all valid combinations can be listed. This only updates the validation like this. The generation of xattrs that carry multiple type uuids/labels in systemd-repart will follow in a later commit. This extends the syntax of the two gpt-related xattrs, to allow lists of things. This is a true extension, without breaking compat (but even if it was, it wouldn't matter given that validatefs was added post v257, i.e. is not included in a stable release. Fixes: #37157
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