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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Dev is very ambiguous. Rename it here alongside upcoming config changes.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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The names are ambiguous. Rename them to make more sense.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This ensures a signal gets delivered to the process instead of relying on parent death behaviour.
SIGCONT was chosen as it is the only signal an unprivileged process is allowed to send to processes with different credentials.
A custom signal handler is installed because the Go runtime does not expose signal information other than which signal was received, and shim must check pid to ensure reasonable behaviour.
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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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This makes way for the new container init.
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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Wrapping fortify is slow, painful and error-prone. Start apps in-process instead.
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 should be used sparingly as the NixOS closure is in the bootstrap store which compresses rather poorly.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This used to be a script that had to be run outside of nix because the sandbox disallows access to nix store state. Turns out closureInfo is the proper way to do that.
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 appears to be the only way to build them with different configuration. This enables static linking in the main package.
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 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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Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This makes patching home-manager no longer necessary.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is no longer needed since shim and init are now part of the main program.
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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App is no longer just a simple [exec.Cmd] wrapper, so exposing these steps separately no longer makes sense and actually hinders proper error handling, cleanup and cancellation. This change removes the five-second wait when the shim dies before receiving the payload, and provides caller the ability to gracefully stop execution of the confined process.
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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Activation does not require access to workDir, and by this point all information is available in dataHome.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is useful for building nixGL.
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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Activation no longer happens during application startup.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This helper program creates fortify configuration for running an application bundle. The activate action wraps a home-manager activation package and ensures each generation gets activated once.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Ensuring home directory in shim causes the directory to be owned by the target user.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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The outer finit executable is normally inaccessible inside the sandbox. This was obscured by the current Nix-based setup exposing /nix/store to the sandbox.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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