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Since commit 4c7c6631cc5a ("Set owner of login protectors to correct
user"), login protectors are made owned by the user when root creates
one on a user's behalf. That's good, but the same isn't true of other
files that get created at the same time:
- The policy protecting the directory
- The protector link file, if the policy is on a different filesystem
- The recovery protector, if the policy is on a different filesystem
- The recovery instructions file
In preparation for setting all metadata files to mode 0600, start making
all these files owned by the user in this scenario as well.
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Update https://github.com/google/fscrypt/issues/220
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Allow overriding the mountpoint where login protectors are stored by
setting the FSCRYPT_ROOT_MNT environmental variable. The CLI tests need
this to avoid touching the real "/".
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Don't force the user to provide a --user argument when running fscrypt
as root if they're doing something where the TargetUser isn't actually
needed, such as provisioning/deprovisioning a v1 encryption policy
to/from the filesystem keyring, or creating a non-login protector.
Also don't set up the user keyring (or check for it being set up) if it
won't actually be used.
Finally, if we'll be provisioning/deprovisioning a v1 encryption policy
to/from the filesystem keyring, make sure the command is running as
root, since the kernel requires this.
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These were found by a combination of manual review and a custom script
that checks for common errors.
Also removed an outdated sentence from the comment for setupBefore().
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The --user flag can now be used to have the targe user (the one whose
keyring and password will be used in fscrypt) be different than the
calling user. Very usefull for things like
sudo fscrypt purge /media/joerichey/usb --user=joerichey
which will now have privileges to drop caches, but will properly clear
the keys from the user's keyring.
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This commit changes all the internal import paths from `fscrypt/foo` to
`github.com/google/fscrypt/foo` so that it can be built once we release
externaly. The documentation in README.md is updated accordingly.
Also, the README has a note noting that we do not make any guarantees
about project stability before 1.0 (when it ships with Ubuntu).
Change-Id: I6ba86e442c74057c8a06ba32a42e17f94833e280
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This commit adds in the framework for adding commands and subcommands to
the fscrypt tool. This commit adds in the "setup", "encrypt", and
"unlock" commands. Additional information can be found by running:
fscrypt <command> --help.
This commit defines how flags are parsed and errors are handled. It also
creates an extensible framework for prompting the user for information.
Change-Id: I159d7f44ee2b2bbc5e072f0802850e082d9a13ce
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