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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is simultaneously more efficient and less error-prone. This change caused minor API changes in multiple other packages.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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These functions do not change the absoluteness of a pathname.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is way higher level than the container package and does not even work unless every path is mounted in the exact same location.
This behaviour causes nothing but confusion and problems,
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is less error-prone, and allows pathname to be checked once.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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There are significant limitations to using the overlay mount, and the implementation in the kernel is quite quirky. For now the Op is quite robust, however a higher level interface for it has not been decided yet.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This allows for more sophisticated test setup.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This restores verbose behaviour.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is required for upperdir and workdir checks in overlayfs.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This further reduces noise on test failure by only passing through output of the failed test.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This reduces noise on test failure.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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These literals were missed when the constants were first defined.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This increases readability since this can help disambiguate absolute paths from similarly named path segments.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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There is usually no good reason to write to /dev. This however doesn't work in internal/app because FilesystemConfig supplied by ContainerConfig might add entries to /dev, so internal/app follows DevWritable with Remount instead.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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There is no reason to mount mqueue anywhere else, and these Ops usually follow each other. This change merges them. This helps decrease IPC overhead and also enables mounting dev readonly.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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The mountTmpfs helper is a relatively low level function that is not exposed as part of the API. Prefixing sysroot here not only introduces overhead but is also quite error-prone.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is used for symlink resolution and is only used internally.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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For formatting user-supplied path strings into overlayfs mount data.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This improves code readability and should also be useful for callers choosing to preserve CAP_SYS_ADMIN.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is useful for building a filesystem hierarchy then remounting it readonly.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Remount turns out to be useful in other places.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This code is useful beyond just pd behaviour, and implementing it this way also reduces IPC overhead.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is not a general purpose setup Op. Separate it so it is easier to find.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This allows container processes to exit gracefully.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This change also makes some parts of the test more robust.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Putting them on the builder methods is more useful.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is more elegant and allows for much easier extension of the tests. Mountinfo is still serialised however due to libPaths nondeterminism.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This part of the interface is very unintuitive and only used for testing, even in testing it is inelegant and can be done better.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Most of these are differences in qemu.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This change also makes seccomp hashes cross-platform.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Filter programs are different across platforms. This representation is also much more readable.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is a very silly typo. Luckily has no effect due to an upper layer doing PR_SET_NO_NEW_PRIVS already.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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These aren't missing from all targets.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Setting up via /tmp is okay, /proc/self/fd makes a lot more sense though for reasons described in the comment.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This allows slightly easier use of the vanity url. This also provides some disambiguation between low level containers and hakurei app containers.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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