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Fortify makes little sense for a container tool.
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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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 usually in scope otherwise.
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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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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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Helper runs very slowly with race detector. This prevents it from timing out.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is what always happens right after a ldd call, so implement it here.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Some helpers are implemented via go test itself in tests, and as a result stdout gets clobbered.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is done more cleanly by modifying Args in cmdF.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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The two-step args call is no longer necessary since stat is passed on initialisation.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This improves consistency across two different helper implementations.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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The helper interface was messy due to odd context acquisition order. That has changed, so this cleans it up.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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For integration with native container tooling.
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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This passes both errno and libseccomp return value.
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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This stops signals sent by the TTY driver from propagating to the xdg-dbus-proxy process.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This should eliminate sporadic failures, like the known double close in "seccomp".
Signed-off-by: Ophestra <cat@gensokyo.uk>
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In case this might want to be an io.Writer.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This removes the requirement to call fmsg.Exit on every exit path, and enables direct use of the "log" package. However, fmsg.BeforeExit is still encouraged when possible to catch exit on suspended output.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This allows the caller to defer fulfilling its payload.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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These are significantly more efficient and less error-prone than mounting an external tmpfile. This should also reduce attack surface as the resulting files are private to its specific sandbox.
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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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This replaces the pipes object and integrates context into helper process lifecycle.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This allows errors written during a timeout to be received and handled.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This makes the code much cleaner, and eliminates the intermittent ErrInvalid errors.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is a generic implementation of helper/pipe.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This helps debug implementation errors of [proc.File].
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Storing extra files as a slice requires the caller to allocate a large enough slice before initialising any file and never grow the slice.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Turns out the doc comment on os.File was lying about its methods being safe for concurrent use. The race detector picked up a data race from concurrent use of Fd and Close.
This change eliminates that by calling Fd in the prepare routine.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Helpers use extra files for various purposes. This provides a generic interface for implementing the fulfillment of these extra files without having to specifically handle them in the process creation code.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Returning an error here puts exporter in an invalid state. The caller should guard against this condition instead.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This also does not require the libc tmpfile call.
BPF programs emitted by libseccomp seems to be deterministic. The tests would catch regressions as it verifies the program against known good output backed by manual testing.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This (slightly) improves performance.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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