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There's no real need to allow users to choose the key description prefix
(a.k.a. the "service"), since on ext4 and f2fs we can just use "ext4"
and "f2fs" for compatibility with all kernels both old and new, and on
other filesystems we can just use "fscrypt". So, let's do that.
Since this removes the point of the "--legacy" option to 'fscrypt setup'
and the "compatibility" field in /etc/fscrypt.conf, remove those too.
Specifically, we start ignoring the "compatibility" in existing config
files and not writing it to new ones. The corresponding protobuf field
number and name are reserved. We stop accepting the "--legacy" option
at all, although since it was default true and there was no real reason
for anyone to change it to false, probably no one will notice. If
anyone does, they should just stop specifying the option.
Note that this change only affects user keyrings and thus only affects
v1 encryption policies, which are deprecated in favor of v2 anyway.
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When 'fscrypt setup' sees that /etc/fscrypt.conf doesn't exist, don't
ask for confirmation before creating it. Just do it. This is the
normal use, and there's not a good reason to ask the user to confirm it.
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Make the global setup command also create the metadata directory at
/.fscrypt, since that's where login protectors are placed, even when the
actual encrypted directories are on a different filesystem.
Resolves https://github.com/google/fscrypt/issues/129
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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Also removed an outdated sentence from the comment for setupBefore().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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