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This provides infrastructure for computing a deterministic identifier based on current artifact kind, opaque parameters data, and optional dependency kind and identifiers.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is used for artifacts that cure into directories.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This makes the decoder safe against untrusted input without hurting performance for a trusted stream. This should still not be called against untrusted input though.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is useful for downloading source tarballs from the internet.
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 other tests that need a cache instance.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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The fact that Gob serialisation is deterministic is an implementation detail. This change replaces Gob with a simple custom format.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This change contains primitives for validating and caching single-file artifacts.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This also removes the deprecated hpkg program.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This change also checks against filesystem daemon running as root early.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Turns out this did not work because in the vm test harness, virtualisation.fileSystems completely and silently overrides fileSystems, causing its contents to not even be evaluated anymore. This is not documented as far as I can tell, and is not obvious by any stretch of the imagination. The current hack is cargo culted from nix-community/impermanence and hopefully lasts until this project fully replaces nix.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This optional behaviour is required on NixOS as it is otherwise impossible to set this up: systemd.mounts breaks startup order somehow even though my unit looks identical to generated ones, fileSystems does not support any kind of initialisation or ordering other than against other mount points.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This should have been handled in a custom option parsing function, but that much extra complexity is unnecessary for this edge case. Honestly I do not know why libfuse does not handle this itself.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This change makes it possible to check parseOpts behaviour as part of Go tests.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This replaces the forking daemonise libfuse function which prevents Go callbacks from calling into the runtime. This also enforces least privilege on the daemon process.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is required for the typical daemonise use case.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This allows unrestricted use of the type system and prepares setup code for cross-process initialisation.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This change should not change behaviour other than making output more consistent.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This improves consistency with the fuse_main help message.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This also removes global state used by sharefs_init.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Could improve performance, atime is not useful for this filesystem anyway.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This verifies behaviour related to setuid/setgid when starting as root.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This avoids disrupting running containers.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is not really just library wrapper functions, but instead implements the callbacks, so fuse-operations makes more sense.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is never called directly anywhere and it is simple enough to be included in the macro. This avoids passing the pointer around and dereferencing errno location, resulting in over 5% increase in throughput on the clang build. No change in the gcc build though.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This filesystem does not support symbolic links, so readlink is not useful, and unreachable in this case because of the check in getattr.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is for passing files between applications, similar to android /sdcard.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This generates warnings when compiling without optimisation.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Hopefully relieves spurious failures on a very overloaded system.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Implementation is no longer tied down by the limitations of SyscallConn.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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The interface provided by net is not used here and is a leftover from a previous implementation. This change removes it.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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The interface does not expose underlying kernel notification mechanisms. This change removes the need to poll in situations were the next call might block.
This is made cumbersome by the SyscallConn interface left over from a previous implementation, it will be replaced in a later commit as the current implementation does not make use of any net.Conn methods other than Close.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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When returned wrapped as a syscall error, these are impossible to recover from, so wrap them as a fatal error.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Signed-off-by: Ophestra <cat@gensokyo.uk>
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This asserts that no shim private dir was left behind after all containers terminate.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This no longer exposes the pipewire socket to the container, and instead mediates access via pipewire-pulse. This makes insecure parts of the protocol inaccessible as explained in the doc comment in hst.
Closes #29.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is for setting up the pipewire-pulse container in shim, for #29.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is a private work directory owned by the specific shim. Useful for sockets owned by this instance of the shim and requires no direct assistance from the priv-side process.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This is unfortunately the only possible setup to securely expose PipeWire to the container. Further explanation explained in the doc comment and #29.
This will be implemented in a future commit.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This ensures consistent state observed by wait4 loop when running against stub.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This method can result in an error targeting it, so it is handled here. This change also causes a call to Create to also Core::Sync, as it should have done.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This proxy can be destroyed by sending a Core::Destroy targeting it. This change implements the Destroy method by embedding destructible.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This change reorders and groups struct elements. This improves readability since this struct holds a lot of state loosely related to each other.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This change also implements pending destructible check on Sync. Destruction method should always be implemented as a wrapper of destructible.destroy.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Turns out the PipeWire server does not expect a value of type None here at all.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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Nothing uses this right now, this would have to be called by wrapper methods on Registry that would search the objects
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This now marshals into a value of type None when the slice is nil, and correctly unmarshals from type None.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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This now calls unmarshalCheckTypeBounds to advance to the next message. Additionally, handling for None value is relocated to a function for reuse by other types.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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A nil spa_dict results in a None type value being sent over the wire.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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These do not belong under Context, and is an early implementation limitation that carried over.
Signed-off-by: Ophestra <cat@gensokyo.uk>
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