go.mod: bump osbuild/images to 0.55

vendor/github.com/Microsoft/hcsshim/.golangci.yml

@@ -20,6 +20,7 @@ linters:
     # - typecheck
     # - unused
 
+    - errorlint # error wrapping (eg, not using `errors.Is`, using `%s` instead of `%w` in `fmt.Errorf`)
     - gofmt # whether code was gofmt-ed
     - govet # enabled by default, but just to be sure
     - nolintlint # ill-formed or insufficient nolint directives
@@ -53,6 +54,12 @@ issues:
       text: "^ST1003: should not use underscores in package names$"
       source: "^package cri_containerd$"
 
+    # don't bother with propper error wrapping in test code
+    - path: cri-containerd
+      linters:
+        - errorlint
+      text: "non-wrapping format verb for fmt.Errorf"
+
     # This repo has a LOT of generated schema files, operating system bindings, and other
     # things that ST1003 from stylecheck won't like (screaming case Windows api constants for example).
     # There's also some structs that we *could* change the initialisms to be Go friendly

vendor/github.com/Microsoft/hcsshim/Makefile

@@ -29,12 +29,23 @@ ifeq "$(DEV_BUILD)" "1"
 DELTA_TARGET=out/delta-dev.tar.gz
 endif
 
+ifeq "$(SNP_BUILD)" "1"
+DELTA_TARGET=out/delta-snp.tar.gz
+endif
+
 # The link aliases for gcstools
 GCS_TOOLS=\
 	generichook \
 	install-drivers
 
-.PHONY: all always rootfs test
+# Common path prefix.
+PATH_PREFIX:=
+# These have PATH_PREFIX prepended to obtain the full path in recipies e.g. $(PATH_PREFIX)/$(VMGS_TOOL)
+VMGS_TOOL:=
+IGVM_TOOL:=
+KERNEL_PATH:=
+
+.PHONY: all always rootfs test snp simple
 
 .DEFAULT_GOAL := all
 
@@ -49,9 +60,58 @@ test:
 
 rootfs: out/rootfs.vhd
 
-out/rootfs.vhd: out/rootfs.tar.gz bin/cmd/tar2ext4
+snp: out/kernelinitrd.vmgs out/rootfs.hash.vhd out/rootfs.vhd out/v2056.vmgs
+
+simple: out/simple.vmgs snp
+
+%.vmgs: %.bin
+	rm -f $@
+	# du -BM returns the size of the bin file in M, eg 7M. The sed command replaces the M with *1024*1024 and then bc does the math to convert to bytes
+	$(PATH_PREFIX)/$(VMGS_TOOL) create --filepath $@ --filesize `du -BM $< | sed  "s/M.*/*1024*1024/" | bc`
+	$(PATH_PREFIX)/$(VMGS_TOOL) write --filepath $@ --datapath $< -i=8
+
+# Simplest debug UVM used to test changes to the linux kernel. No dmverity protection. Boots an initramdisk rather than directly booting a vhd disk.
+out/simple.bin: out/initrd.img $(PATH_PREFIX)/$(KERNEL_PATH) boot/startup_simple.sh
+	rm -f $@
+	python3 $(PATH_PREFIX)/$(IGVM_TOOL) -o $@ -kernel $(PATH_PREFIX)/$(KERNEL_PATH) -append "8250_core.nr_uarts=0 panic=-1 debug loglevel=7 rdinit=/startup_simple.sh" -rdinit out/initrd.img -vtl 0
+
+ROOTFS_DEVICE:=/dev/sda
+VERITY_DEVICE:=/dev/sdb
+# Debug build for use with uvmtester. UVM with dm-verity protected vhd disk mounted directly via the kernel command line. Ignores corruption in dm-verity protected disk. (Use dmesg to see if dm-verity is ignoring data corruption.)
+out/v2056.bin: out/rootfs.vhd out/rootfs.hash.vhd $(PATH_PREFIX)/$(KERNEL_PATH) out/rootfs.hash.datasectors out/rootfs.hash.datablocksize out/rootfs.hash.hashblocksize out/rootfs.hash.datablocks out/rootfs.hash.rootdigest out/rootfs.hash.salt boot/startup_v2056.sh
+	rm -f $@
+	python3 $(PATH_PREFIX)/$(IGVM_TOOL) -o $@ -kernel $(PATH_PREFIX)/$(KERNEL_PATH) -append "8250_core.nr_uarts=0 panic=-1 debug loglevel=7 root=/dev/dm-0 dm-mod.create=\"dmverity,,,ro,0 $(shell cat out/rootfs.hash.datasectors) verity 1 $(ROOTFS_DEVICE) $(VERITY_DEVICE) $(shell cat out/rootfs.hash.datablocksize) $(shell cat out/rootfs.hash.hashblocksize) $(shell cat out/rootfs.hash.datablocks) 0 sha256 $(shell cat out/rootfs.hash.rootdigest) $(shell cat out/rootfs.hash.salt) 1 ignore_corruption\" init=/startup_v2056.sh"  -vtl 0
+
+# Full UVM with dm-verity protected vhd disk mounted directly via the kernel command line.
+out/kernelinitrd.bin: out/rootfs.vhd out/rootfs.hash.vhd out/rootfs.hash.datasectors out/rootfs.hash.datablocksize out/rootfs.hash.hashblocksize out/rootfs.hash.datablocks out/rootfs.hash.rootdigest out/rootfs.hash.salt $(PATH_PREFIX)/$(KERNEL_PATH) boot/startup.sh
+	rm -f $@
+	python3 $(PATH_PREFIX)/$(IGVM_TOOL) -o $@ -kernel $(PATH_PREFIX)/$(KERNEL_PATH) -append "8250_core.nr_uarts=0 panic=-1 debug loglevel=7 root=/dev/dm-0 dm-mod.create=\"dmverity,,,ro,0 $(shell cat out/rootfs.hash.datasectors) verity 1 $(ROOTFS_DEVICE) $(VERITY_DEVICE) $(shell cat out/rootfs.hash.datablocksize) $(shell cat out/rootfs.hash.hashblocksize) $(shell cat out/rootfs.hash.datablocks) 0 sha256 $(shell cat out/rootfs.hash.rootdigest) $(shell cat out/rootfs.hash.salt)\" init=/startup.sh"  -vtl 0
+
+# Rule to make a vhd from a file. This is used to create the rootfs.hash.vhd from rootfs.hash.
+%.vhd: % bin/cmd/tar2ext4
+	./bin/cmd/tar2ext4 -only-vhd -i $< -o $@
+
+# Rule to make a vhd from an ext4 file. This is used to create the rootfs.vhd from rootfs.ext4.
+%.vhd: %.ext4 bin/cmd/tar2ext4
+	./bin/cmd/tar2ext4 -only-vhd -i $< -o $@
+
+%.hash %.hash.info %.hash.datablocks %.hash.rootdigest %hash.datablocksize %.hash.datasectors %.hash.hashblocksize: %.ext4 %.hash.salt
+	veritysetup format --no-superblock --salt $(shell cat out/rootfs.hash.salt) $< $*.hash > $*.hash.info
+    # Retrieve info required by dm-verity at boot time
+    # Get the blocksize of rootfs
+	cat $*.hash.info | awk '/^Root hash:/{ print $$3 }' > $*.hash.rootdigest
+	cat $*.hash.info | awk '/^Salt:/{ print $$2 }' > $*.hash.salt
+	cat $*.hash.info | awk '/^Data block size:/{ print $$4 }' > $*.hash.datablocksize
+	cat $*.hash.info | awk '/^Hash block size:/{ print $$4 }' > $*.hash.hashblocksize
+	cat $*.hash.info | awk '/^Data blocks:/{ print $$3 }' > $*.hash.datablocks
+	echo $$(( $$(cat $*.hash.datablocks) * $$(cat $*.hash.datablocksize) / 512 )) > $*.hash.datasectors
+
+out/rootfs.hash.salt:
+	hexdump -vn32 -e'8/4 "%08X" 1 "\n"' /dev/random > $@
+
+out/rootfs.ext4: out/rootfs.tar.gz bin/cmd/tar2ext4
 	gzip -f -d ./out/rootfs.tar.gz
-	bin/cmd/tar2ext4 -vhd -i ./out/rootfs.tar -o $@
+	./bin/cmd/tar2ext4 -i ./out/rootfs.tar -o $@
 
 out/rootfs.tar.gz: out/initrd.img
 	rm -rf rootfs-conv
@@ -74,6 +134,20 @@ out/delta-dev.tar.gz: out/delta.tar.gz bin/internal/tools/snp-report
 	tar -zcf $@ -C rootfs-dev .
 	rm -rf rootfs-dev
 
+out/delta-snp.tar.gz: out/delta.tar.gz bin/internal/tools/snp-report boot/startup_v2056.sh boot/startup_simple.sh boot/startup.sh
+	rm -rf rootfs-snp
+	mkdir rootfs-snp
+	tar -xzf out/delta.tar.gz -C rootfs-snp
+	cp boot/startup_v2056.sh rootfs-snp/startup_v2056.sh
+	cp boot/startup_simple.sh rootfs-snp/startup_simple.sh
+	cp boot/startup.sh rootfs-snp/startup.sh
+	cp bin/internal/tools/snp-report rootfs-snp/bin/
+	chmod a+x rootfs-snp/startup_v2056.sh
+	chmod a+x rootfs-snp/startup_simple.sh
+	chmod a+x rootfs-snp/startup.sh
+	tar -zcf $@ -C rootfs-snp .
+	rm -rf rootfs-snp
+
 out/delta.tar.gz: bin/init bin/vsockexec bin/cmd/gcs bin/cmd/gcstools bin/cmd/hooks/wait-paths Makefile
 	@mkdir -p out
 	rm -rf rootfs
@@ -94,7 +168,10 @@ out/delta.tar.gz: bin/init bin/vsockexec bin/cmd/gcs bin/cmd/gcstools bin/cmd/ho
 	tar -zcf $@ -C rootfs .
 	rm -rf rootfs
 
-bin/cmd/gcs bin/cmd/gcstools bin/cmd/hooks/wait-paths bin/cmd/tar2ext4 bin/internal/tools/snp-report:
+out/containerd-shim-runhcs-v1.exe:
+	GOOS=windows $(GO_BUILD) -o $@ $(SRCROOT)/cmd/containerd-shim-runhcs-v1
+
+bin/cmd/gcs bin/cmd/gcstools bin/cmd/hooks/wait-paths bin/cmd/tar2ext4 bin/internal/tools/snp-report bin/cmd/dmverity-vhd:
 	@mkdir -p $(dir $@)
 	GOOS=linux $(GO_BUILD) -o $@ $(SRCROOT)/$(@:bin/%=%)
 
@@ -108,4 +185,4 @@ bin/init: init/init.o vsockexec/vsock.o
 
 %.o: %.c
 	@mkdir -p $(dir $@)
-	$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<

vendor/github.com/Microsoft/hcsshim/README.md

@@ -9,15 +9,18 @@ It is primarily used in the [Moby](https://github.com/moby/moby) and [Containerd
 ## Building
 
 While this repository can be used as a library of sorts to call the HCS apis, there are a couple binaries built out of the repository as well. The main ones being the Linux guest agent, and an implementation of the [runtime v2 containerd shim api](https://github.com/containerd/containerd/blob/master/runtime/v2/README.md).
+
 ### Linux Hyper-V Container Guest Agent
 
 To build the Linux guest agent itself all that's needed is to set your GOOS to "Linux" and build out of ./cmd/gcs.
+
 ```powershell
 C:\> $env:GOOS="linux"
 C:\> go build .\cmd\gcs\
 ```
 
 or on a Linux machine
+
 ```sh
 > go build ./cmd/gcs
 ```
@@ -33,13 +36,15 @@ make all
 ```
 
 If the build is successful, in the `./out` folder you should see:
+
 ```sh
 > ls ./out/
 delta.tar.gz  initrd.img  rootfs.tar.gz
 ```
 
 ### Containerd Shim
-For info on the Runtime V2 API: https://github.com/containerd/containerd/blob/master/runtime/v2/README.md.
+
+For info on the [Runtime V2 API](https://github.com/containerd/containerd/blob/master/runtime/v2/README.md).
 
 Contrary to the typical Linux architecture of shim -> runc, the runhcs shim is used both to launch and manage the lifetime of containers.
 
@@ -48,7 +53,9 @@ C:\> $env:GOOS="windows"
 C:\> go build .\cmd\containerd-shim-runhcs-v1
 ```
 
-Then place the binary in the same directory that Containerd is located at in your environment. A default Containerd configuration file can be generated by running:
+Then place the binary in the same directory that Containerd is located at in your environment.
+A default Containerd configuration file can be generated by running:
+
 ```powershell
 .\containerd.exe config default | Out-File "C:\Program Files\containerd\config.toml" -Encoding ascii
 ```
@@ -56,6 +63,7 @@ Then place the binary in the same directory that Containerd is located at in you
 This config file will already have the shim set as the default runtime for cri interactions.
 
 To trial using the shim out with ctr.exe:
+
 ```powershell
 C:\> ctr.exe run --runtime io.containerd.runhcs.v1 --rm mcr.microsoft.com/windows/nanoserver:2004 windows-test cmd /c "echo Hello World!"
 ```
@@ -64,16 +72,69 @@ C:\> ctr.exe run --runtime io.containerd.runhcs.v1 --rm mcr.microsoft.com/window
 
 This project welcomes contributions and suggestions. Most contributions require you to agree to a
 Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us
-the rights to use your contribution. For details, visit https://cla.microsoft.com.
+the rights to use your contribution. For details, visit [Microsoft CLA](https://cla.microsoft.com).
 
 When you submit a pull request, a CLA-bot will automatically determine whether you need to provide
 a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions
 provided by the bot. You will only need to do this once across all repos using our CLA.
 
-We also require that contributors [sign their commits](https://git-scm.com/docs/git-commit) using `git commit -s` or `git commit --signoff` to
-certify they either authored the work themselves or otherwise have permission to use it in this project. Please see https://developercertificate.org/ for
-more info, as well as to make sure that you can attest to the rules listed. Our CI uses the [DCO Github app](https://github.com/apps/dco) to ensure
-that all commits in a given PR are signed-off.
+We require that contributors sign their commits
+to certify they either authored the work themselves or otherwise have permission to use it in this project.
+
+We also require that contributors sign their commits using  using [`git commit --signoff`][git-commit-s]
+to certify they either authored the work themselves or otherwise have permission to use it in this project.
+A range of commits can be signed off using [`git rebase --signoff`][git-rebase-s].
+
+Please see  [the developer certificate](https://developercertificate.org) for more info,
+as well as to make sure that you can attest to the rules listed.
+Our CI uses the [DCO Github app](https://github.com/apps/dco) to ensure that all commits in a given PR are signed-off.
+
+### Linting
+
+Code must pass a linting stage, which uses [`golangci-lint`][lint].
+Since `./test` is a separate Go module, the linter is run from both the root and the
+`test` directories. Additionally, the linter is run with `GOOS` set to both `windows` and
+`linux`.
+
+The linting settings are stored in [`.golangci.yaml`](./.golangci.yaml), and can be run
+automatically with VSCode by adding the following to your workspace or folder settings:
+
+```json
+    "go.lintTool": "golangci-lint",
+    "go.lintOnSave": "package",
+```
+
+Additional editor [integrations options are also available][lint-ide].
+
+Alternatively, `golangci-lint` can be [installed][lint-install] and run locally:
+
+```shell
+# use . or specify a path to only lint a package
+# to show all lint errors, use flags "--max-issues-per-linter=0 --max-same-issues=0"
+> golangci-lint run
+```
+
+To run across the entire repo for both `GOOS=windows` and `linux`:
+
+```powershell
+> foreach ( $goos in ('windows', 'linux') ) {
+    foreach ( $repo in ('.', 'test') ) {
+        pwsh -Command "cd $repo && go env -w GOOS=$goos && golangci-lint.exe run --verbose"
+    }
+}
+```
+
+### Go Generate
+
+The pipeline checks that auto-generated code, via `go generate`, are up to date.
+Similar to the [linting stage](#linting), `go generate` is run in both the root and test Go modules.
+
+This can be done via:
+
+```shell
+> go generate ./...
+> cd test && go generate ./...
+```
 
 ## Code of Conduct
 
@@ -83,7 +144,7 @@ contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additio
 
 ## Dependencies
 
-This project requires Golang 1.17 or newer to build.
+This project requires Golang 1.18 or newer to build.
 
 For system requirements to run this project, see the Microsoft docs on [Windows Container requirements](https://docs.microsoft.com/en-us/virtualization/windowscontainers/deploy-containers/system-requirements).
 
@@ -100,3 +161,10 @@ For additional details, see [Report a Computer Security Vulnerability](https://t
 
 ---------------
 Copyright (c) 2018 Microsoft Corp.  All rights reserved.
+
+[lint]: https://golangci-lint.run/
+[lint-ide]: https://golangci-lint.run/usage/integrations/#editor-integration
+[lint-install]: https://golangci-lint.run/usage/install/#local-installation
+
+[git-commit-s]: https://git-scm.com/docs/git-commit#Documentation/git-commit.txt--s
+[git-rebase-s]: https://git-scm.com/docs/git-rebase#Documentation/git-rebase.txt---signoff

vendor/github.com/Microsoft/hcsshim/computestorage/attach.go

@@ -38,3 +38,31 @@ func AttachLayerStorageFilter(ctx context.Context, layerPath string, layerData L
 	}
 	return nil
 }
+
+// AttachOverlayFilter sets up a filter of the given type on a writable container layer.  Currently the only
+// supported filter types are WCIFS & UnionFS (defined in internal/hcs/schema2/layer.go)
+//
+// `volumePath` is volume path at which writable layer is mounted. If the
+// path does not end in a `\` the platform will append it automatically.
+//
+// `layerData` is the parent read-only layer data.
+func AttachOverlayFilter(ctx context.Context, volumePath string, layerData LayerData) (err error) {
+	title := "hcsshim::AttachOverlayFilter"
+	ctx, span := oc.StartSpan(ctx, title) //nolint:ineffassign,staticcheck
+	defer span.End()
+	defer func() { oc.SetSpanStatus(span, err) }()
+	span.AddAttributes(
+		trace.StringAttribute("volumePath", volumePath),
+	)
+
+	bytes, err := json.Marshal(layerData)
+	if err != nil {
+		return err
+	}
+
+	err = hcsAttachOverlayFilter(volumePath, string(bytes))
+	if err != nil {
+		return errors.Wrap(err, "failed to attach overlay filter")
+	}
+	return nil
+}

vendor/github.com/Microsoft/hcsshim/computestorage/detach.go

@@ -4,7 +4,9 @@ package computestorage
 
 import (
 	"context"
+	"encoding/json"
 
+	hcsschema "github.com/Microsoft/hcsshim/internal/hcs/schema2"
 	"github.com/Microsoft/hcsshim/internal/oc"
 	"github.com/pkg/errors"
 	"go.opencensus.io/trace"
@@ -26,3 +28,27 @@ func DetachLayerStorageFilter(ctx context.Context, layerPath string) (err error)
 	}
 	return nil
 }
+
+// DetachOverlayFilter detaches the filter on a writable container layer.
+//
+// `volumePath` is a path to writable container volume.
+func DetachOverlayFilter(ctx context.Context, volumePath string, filterType hcsschema.FileSystemFilterType) (err error) {
+	title := "hcsshim::DetachOverlayFilter"
+	ctx, span := oc.StartSpan(ctx, title) //nolint:ineffassign,staticcheck
+	defer span.End()
+	defer func() { oc.SetSpanStatus(span, err) }()
+	span.AddAttributes(trace.StringAttribute("volumePath", volumePath))
+
+	layerData := LayerData{}
+	layerData.FilterType = filterType
+	bytes, err := json.Marshal(layerData)
+	if err != nil {
+		return err
+	}
+
+	err = hcsDetachOverlayFilter(volumePath, string(bytes))
+	if err != nil {
+		return errors.Wrap(err, "failed to detach overlay filter")
+	}
+	return nil
+}

vendor/github.com/Microsoft/hcsshim/computestorage/storage.go

@@ -19,14 +19,17 @@ import (
 //sys hcsFormatWritableLayerVhd(handle windows.Handle) (hr error) = computestorage.HcsFormatWritableLayerVhd?
 //sys hcsGetLayerVhdMountPath(vhdHandle windows.Handle, mountPath **uint16) (hr error) = computestorage.HcsGetLayerVhdMountPath?
 //sys hcsSetupBaseOSVolume(layerPath string, volumePath string, options string) (hr error) = computestorage.HcsSetupBaseOSVolume?
+//sys hcsAttachOverlayFilter(volumePath string, layerData string) (hr error) = computestorage.HcsAttachOverlayFilter?
+//sys hcsDetachOverlayFilter(volumePath string, layerData string) (hr error) = computestorage.HcsDetachOverlayFilter?
 
 type Version = hcsschema.Version
 type Layer = hcsschema.Layer
 
 // LayerData is the data used to describe parent layer information.
 type LayerData struct {
-	SchemaVersion Version `json:"SchemaVersion,omitempty"`
-	Layers        []Layer `json:"Layers,omitempty"`
+	SchemaVersion Version                        `json:"SchemaVersion,omitempty"`
+	Layers        []Layer                        `json:"Layers,omitempty"`
+	FilterType    hcsschema.FileSystemFilterType `json:"FilterType,omitempty"`
 }
 
 // ExportLayerOptions are the set of options that are used with the `computestorage.HcsExportLayer` syscall.

vendor/github.com/Microsoft/hcsshim/computestorage/zsyscall_windows.go

@@ -43,8 +43,10 @@ var (
 	modcomputestorage = windows.NewLazySystemDLL("computestorage.dll")
 
 	procHcsAttachLayerStorageFilter = modcomputestorage.NewProc("HcsAttachLayerStorageFilter")
+	procHcsAttachOverlayFilter      = modcomputestorage.NewProc("HcsAttachOverlayFilter")
 	procHcsDestroyLayer             = modcomputestorage.NewProc("HcsDestroyLayer")
 	procHcsDetachLayerStorageFilter = modcomputestorage.NewProc("HcsDetachLayerStorageFilter")
+	procHcsDetachOverlayFilter      = modcomputestorage.NewProc("HcsDetachOverlayFilter")
 	procHcsExportLayer              = modcomputestorage.NewProc("HcsExportLayer")
 	procHcsFormatWritableLayerVhd   = modcomputestorage.NewProc("HcsFormatWritableLayerVhd")
 	procHcsGetLayerVhdMountPath     = modcomputestorage.NewProc("HcsGetLayerVhdMountPath")
@@ -83,6 +85,35 @@ func _hcsAttachLayerStorageFilter(layerPath *uint16, layerData *uint16) (hr erro
 	return
 }
 
+func hcsAttachOverlayFilter(volumePath string, layerData string) (hr error) {
+	var _p0 *uint16
+	_p0, hr = syscall.UTF16PtrFromString(volumePath)
+	if hr != nil {
+		return
+	}
+	var _p1 *uint16
+	_p1, hr = syscall.UTF16PtrFromString(layerData)
+	if hr != nil {
+		return
+	}
+	return _hcsAttachOverlayFilter(_p0, _p1)
+}
+
+func _hcsAttachOverlayFilter(volumePath *uint16, layerData *uint16) (hr error) {
+	hr = procHcsAttachOverlayFilter.Find()
+	if hr != nil {
+		return
+	}
+	r0, _, _ := syscall.Syscall(procHcsAttachOverlayFilter.Addr(), 2, uintptr(unsafe.Pointer(volumePath)), uintptr(unsafe.Pointer(layerData)), 0)
+	if int32(r0) < 0 {
+		if r0&0x1fff0000 == 0x00070000 {
+			r0 &= 0xffff
+		}
+		hr = syscall.Errno(r0)
+	}
+	return
+}
+
 func hcsDestroyLayer(layerPath string) (hr error) {
 	var _p0 *uint16
 	_p0, hr = syscall.UTF16PtrFromString(layerPath)
@@ -131,6 +162,35 @@ func _hcsDetachLayerStorageFilter(layerPath *uint16) (hr error) {
 	return
 }
 
+func hcsDetachOverlayFilter(volumePath string, layerData string) (hr error) {
+	var _p0 *uint16
+	_p0, hr = syscall.UTF16PtrFromString(volumePath)
+	if hr != nil {
+		return
+	}
+	var _p1 *uint16
+	_p1, hr = syscall.UTF16PtrFromString(layerData)
+	if hr != nil {
+		return
+	}
+	return _hcsDetachOverlayFilter(_p0, _p1)
+}
+
+func _hcsDetachOverlayFilter(volumePath *uint16, layerData *uint16) (hr error) {
+	hr = procHcsDetachOverlayFilter.Find()
+	if hr != nil {
+		return
+	}
+	r0, _, _ := syscall.Syscall(procHcsDetachOverlayFilter.Addr(), 2, uintptr(unsafe.Pointer(volumePath)), uintptr(unsafe.Pointer(layerData)), 0)
+	if int32(r0) < 0 {
+		if r0&0x1fff0000 == 0x00070000 {
+			r0 &= 0xffff
+		}
+		hr = syscall.Errno(r0)
+	}
+	return
+}
+
 func hcsExportLayer(layerPath string, exportFolderPath string, layerData string, options string) (hr error) {
 	var _p0 *uint16
 	_p0, hr = syscall.UTF16PtrFromString(layerPath)

vendor/github.com/Microsoft/hcsshim/container.go

@@ -75,7 +75,7 @@ func init() {
 func CreateContainer(id string, c *ContainerConfig) (Container, error) {
 	fullConfig, err := mergemaps.MergeJSON(c, createContainerAdditionalJSON)
 	if err != nil {
-		return nil, fmt.Errorf("failed to merge additional JSON '%s': %s", createContainerAdditionalJSON, err)
+		return nil, fmt.Errorf("failed to merge additional JSON '%s': %w", createContainerAdditionalJSON, err)
 	}
 
 	system, err := hcs.CreateComputeSystem(context.Background(), id, fullConfig)

vendor/github.com/Microsoft/hcsshim/errors.go

@@ -115,6 +115,7 @@ func (e *ContainerError) Error() string {
 		s += " encountered an error during " + e.Operation
 	}
 
+	//nolint:errorlint // legacy code
 	switch e.Err.(type) {
 	case nil:
 		break
@@ -145,6 +146,7 @@ func (e *ProcessError) Error() string {
 		s += " encountered an error during " + e.Operation
 	}
 
+	//nolint:errorlint // legacy code
 	switch e.Err.(type) {
 	case nil:
 		break
@@ -166,10 +168,10 @@ func (e *ProcessError) Error() string {
 // already exited, or does not exist. Both IsAlreadyStopped and IsNotExist
 // will currently return true when the error is ErrElementNotFound.
 func IsNotExist(err error) bool {
-	if _, ok := err.(EndpointNotFoundError); ok {
+	if _, ok := err.(EndpointNotFoundError); ok { //nolint:errorlint // legacy code
 		return true
 	}
-	if _, ok := err.(NetworkNotFoundError); ok {
+	if _, ok := err.(NetworkNotFoundError); ok { //nolint:errorlint // legacy code
 		return true
 	}
 	return hcs.IsNotExist(getInnerError(err))
@@ -224,6 +226,7 @@ func IsAccessIsDenied(err error) bool {
 }
 
 func getInnerError(err error) error {
+	//nolint:errorlint // legacy code
 	switch pe := err.(type) {
 	case nil:
 		return nil
@@ -236,14 +239,14 @@ func getInnerError(err error) error {
 }
 
 func convertSystemError(err error, c *container) error {
-	if serr, ok := err.(*hcs.SystemError); ok {
+	if serr, ok := err.(*hcs.SystemError); ok { //nolint:errorlint // legacy code
 		return &ContainerError{Container: c, Operation: serr.Op, Err: serr.Err, Events: serr.Events}
 	}
 	return err
 }
 
 func convertProcessError(err error, p *process) error {
-	if perr, ok := err.(*hcs.ProcessError); ok {
+	if perr, ok := err.(*hcs.ProcessError); ok { //nolint:errorlint // legacy code
 		return &ProcessError{Process: p, Operation: perr.Op, Err: perr.Err, Events: perr.Events}
 	}
 	return err

vendor/github.com/Microsoft/hcsshim/internal/hcs/process.go

@@ -63,7 +63,7 @@ func (process *Process) SystemID() string {
 }
 
 func (process *Process) processSignalResult(ctx context.Context, err error) (bool, error) {
-	switch err {
+	switch err { //nolint:errorlint
 	case nil:
 		return true, nil
 	case ErrVmcomputeOperationInvalidState, ErrComputeSystemDoesNotExist, ErrElementNotFound:

vendor/github.com/Microsoft/hcsshim/internal/hcs/schema2/layer.go

@@ -9,6 +9,13 @@
 
 package hcsschema
 
+type FileSystemFilterType string
+
+const (
+	UnionFS FileSystemFilterType = "UnionFS"
+	WCIFS   FileSystemFilterType = "WCIFS"
+)
+
 type Layer struct {
 	Id string `json:"Id,omitempty"`
 

vendor/github.com/Microsoft/hcsshim/internal/hcs/schema2/registry_hive.go

@@ -0,0 +1,13 @@
+package hcsschema
+
+// NOTE: manually added
+
+type RegistryHive string
+
+// List of RegistryHive
+const (
+	RegistryHive_SYSTEM   RegistryHive = "System"
+	RegistryHive_SOFTWARE RegistryHive = "Software"
+	RegistryHive_SECURITY RegistryHive = "Security"
+	RegistryHive_SAM      RegistryHive = "Sam"
+)

vendor/github.com/Microsoft/hcsshim/internal/hcs/schema2/registry_key.go

@@ -10,7 +10,7 @@
 package hcsschema
 
 type RegistryKey struct {
-	Hive string `json:"Hive,omitempty"`
+	Hive RegistryHive `json:"Hive,omitempty"`
 
 	Name string `json:"Name,omitempty"`
 

vendor/github.com/Microsoft/hcsshim/internal/hcs/schema2/registry_value.go

@@ -14,7 +14,7 @@ type RegistryValue struct {
 
 	Name string `json:"Name,omitempty"`
 
-	Type_ string `json:"Type,omitempty"`
+	Type_ RegistryValueType `json:"Type,omitempty"`
 
 	//  One and only one value type must be set.
 	StringValue string `json:"StringValue,omitempty"`

vendor/github.com/Microsoft/hcsshim/internal/hcs/schema2/registry_value_type.go

@@ -0,0 +1,17 @@
+package hcsschema
+
+// NOTE: manually added
+
+type RegistryValueType string
+
+// List of RegistryValueType
+const (
+	RegistryValueType_NONE            RegistryValueType = "None"
+	RegistryValueType_STRING          RegistryValueType = "String"
+	RegistryValueType_EXPANDED_STRING RegistryValueType = "ExpandedString"
+	RegistryValueType_MULTI_STRING    RegistryValueType = "MultiString"
+	RegistryValueType_BINARY          RegistryValueType = "Binary"
+	RegistryValueType_D_WORD          RegistryValueType = "DWord"
+	RegistryValueType_Q_WORD          RegistryValueType = "QWord"
+	RegistryValueType_CUSTOM_TYPE     RegistryValueType = "CustomType"
+)

vendor/github.com/Microsoft/hcsshim/internal/hcs/system.go

@@ -97,7 +97,7 @@ func CreateComputeSystem(ctx context.Context, id string, hcsDocumentInterface in
 	events, err := processAsyncHcsResult(ctx, createError, resultJSON, computeSystem.callbackNumber,
 		hcsNotificationSystemCreateCompleted, &timeout.SystemCreate)
 	if err != nil {
-		if err == ErrTimeout {
+		if errors.Is(err, ErrTimeout) {
 			// Terminate the compute system if it still exists. We're okay to
 			// ignore a failure here.
 			_ = computeSystem.Terminate(ctx)
@@ -238,7 +238,7 @@ func (computeSystem *System) Shutdown(ctx context.Context) error {
 
 	resultJSON, err := vmcompute.HcsShutdownComputeSystem(ctx, computeSystem.handle, "")
 	events := processHcsResult(ctx, resultJSON)
-	switch err {
+	switch err { //nolint:errorlint
 	case nil, ErrVmcomputeAlreadyStopped, ErrComputeSystemDoesNotExist, ErrVmcomputeOperationPending:
 	default:
 		return makeSystemError(computeSystem, operation, err, events)
@@ -259,7 +259,7 @@ func (computeSystem *System) Terminate(ctx context.Context) error {
 
 	resultJSON, err := vmcompute.HcsTerminateComputeSystem(ctx, computeSystem.handle, "")
 	events := processHcsResult(ctx, resultJSON)
-	switch err {
+	switch err { //nolint:errorlint
 	case nil, ErrVmcomputeAlreadyStopped, ErrComputeSystemDoesNotExist, ErrVmcomputeOperationPending:
 	default:
 		return makeSystemError(computeSystem, operation, err, events)
@@ -279,7 +279,7 @@ func (computeSystem *System) waitBackground() {
 	span.AddAttributes(trace.StringAttribute("cid", computeSystem.id))
 
 	err := waitForNotification(ctx, computeSystem.callbackNumber, hcsNotificationSystemExited, nil)
-	switch err {
+	switch err { //nolint:errorlint
 	case nil:
 		log.G(ctx).Debug("system exited")
 	case ErrVmcomputeUnexpectedExit:

vendor/github.com/Microsoft/hcsshim/internal/hns/hnsfuncs.go

@@ -31,7 +31,7 @@ func hnsCallRawResponse(method, path, request string) (*hnsResponse, error) {
 func hnsCall(method, path, request string, returnResponse interface{}) error {
 	hnsresponse, err := hnsCallRawResponse(method, path, request)
 	if err != nil {
-		return fmt.Errorf("failed during hnsCallRawResponse: %v", err)
+		return fmt.Errorf("failed during hnsCallRawResponse: %w", err)
 	}
 	if !hnsresponse.Success {
 		return fmt.Errorf("hns failed with error : %s", hnsresponse.Error)

vendor/github.com/Microsoft/hcsshim/internal/hns/namespace.go

@@ -56,7 +56,7 @@ func issueNamespaceRequest(id *string, method, subpath string, request interface
 		if strings.Contains(err.Error(), "Element not found.") {
 			return nil, os.ErrNotExist
 		}
-		return nil, fmt.Errorf("%s %s: %s", method, hnspath, err)
+		return nil, fmt.Errorf("%s %s: %w", method, hnspath, err)
 	}
 	return &ns, err
 }
@@ -86,7 +86,7 @@ func GetNamespaceEndpoints(id string) ([]string, error) {
 			var endpoint namespaceEndpointRequest
 			err = json.Unmarshal(rsrc.Data, &endpoint)
 			if err != nil {
-				return nil, fmt.Errorf("unmarshal endpoint: %s", err)
+				return nil, fmt.Errorf("unmarshal endpoint: %w", err)
 			}
 			endpoints = append(endpoints, endpoint.ID)
 		}

vendor/github.com/Microsoft/hcsshim/internal/jobobject/iocp.go

@@ -4,6 +4,7 @@ package jobobject
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"sync"
 	"unsafe"
@@ -59,7 +60,7 @@ func pollIOCP(ctx context.Context, iocpHandle windows.Handle) {
 				}).Warn("failed to parse job object message")
 				continue
 			}
-			if err := msq.Enqueue(notification); err == queue.ErrQueueClosed {
+			if err := msq.Enqueue(notification); errors.Is(err, queue.ErrQueueClosed) {
 				// Write will only return an error when the queue is closed.
 				// The only time a queue would ever be closed is when we call `Close` on
 				// the job it belongs to which also removes it from the jobMap, so something

vendor/github.com/Microsoft/hcsshim/internal/jobobject/jobobject.go

@@ -374,7 +374,7 @@ func (job *JobObject) Pids() ([]uint32, error) {
 		return []uint32{}, nil
 	}
 
-	if err != winapi.ERROR_MORE_DATA {
+	if err != winapi.ERROR_MORE_DATA { //nolint:errorlint
 		return nil, fmt.Errorf("failed initial query for PIDs in job object: %w", err)
 	}
 

vendor/github.com/Microsoft/hcsshim/internal/jobobject/limits.go

@@ -143,6 +143,13 @@ func (job *JobObject) SetCPUAffinity(affinityBitMask uint64) error {
 		return err
 	}
 	info.BasicLimitInformation.LimitFlags |= uint32(windows.JOB_OBJECT_LIMIT_AFFINITY)
+
+	// We really, really shouldn't be running on 32 bit, but just in case (and to satisfy CodeQL) ...
+	const maxUintptr = ^uintptr(0)
+	if affinityBitMask > uint64(maxUintptr) {
+		return fmt.Errorf("affinity bitmask (%d) exceeds max allowable value (%d)", affinityBitMask, maxUintptr)
+	}
+
 	info.BasicLimitInformation.Affinity = uintptr(affinityBitMask)
 	return job.setExtendedInformation(info)
 }

vendor/github.com/Microsoft/hcsshim/internal/log/format.go

@@ -104,6 +104,7 @@ func encode(v interface{}) (_ []byte, err error) {
 	if jErr := enc.Encode(v); jErr != nil {
 		if err != nil {
 			// TODO (go1.20): use multierror via fmt.Errorf("...: %w; ...: %w", ...)
+			//nolint:errorlint // non-wrapping format verb for fmt.Errorf
 			return nil, fmt.Errorf("protojson encoding: %v; json encoding: %w", err, jErr)
 		}
 		return nil, fmt.Errorf("json encoding: %w", jErr)

vendor/github.com/Microsoft/hcsshim/internal/logfields/fields.go

@@ -46,6 +46,7 @@ const (
 
 	ExpectedType = "expected-type"
 	Bool         = "bool"
+	Int32        = "int32"
 	Uint32       = "uint32"
 	Uint64       = "uint64"
 

vendor/github.com/Microsoft/hcsshim/internal/memory/pool.go

@@ -126,7 +126,7 @@ func (pa *PoolAllocator) Allocate(size uint64) (MappedRegion, error) {
 	// this means that there are no more regions for the current class, try expanding
 	if nextCls != memCls {
 		if err := pa.split(memCls); err != nil {
-			if err == ErrInvalidMemoryClass {
+			if errors.Is(err, ErrInvalidMemoryClass) {
 				return nil, ErrNotEnoughSpace
 			}
 			return nil, err
@@ -147,7 +147,7 @@ func (pa *PoolAllocator) Allocate(size uint64) (MappedRegion, error) {
 }
 
 // Release marks a memory region of class `memCls` and offset `offset` as free and tries to merge smaller regions into
-// a bigger one
+// a bigger one.
 func (pa *PoolAllocator) Release(reg MappedRegion) error {
 	mp := pa.pools[reg.Type()]
 	if mp == nil {
@@ -164,7 +164,7 @@ func (pa *PoolAllocator) Release(reg MappedRegion) error {
 		return ErrNotAllocated
 	}
 	if err := pa.merge(n.parent); err != nil {
-		if err != ErrEarlyMerge {
+		if !errors.Is(err, ErrEarlyMerge) {
 			return err
 		}
 	}

vendor/github.com/Microsoft/hcsshim/internal/oc/errors.go

@@ -6,7 +6,7 @@ import (
 	"net"
 	"os"
 
-	"github.com/containerd/containerd/errdefs"
+	"github.com/containerd/errdefs"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 )
@@ -16,7 +16,7 @@ import (
 
 func toStatusCode(err error) codes.Code {
 	// checks if err implements GRPCStatus() *"google.golang.org/grpc/status".Status,
-	// wraps an error defined in "github.com/containerd/containerd/errdefs", or is a
+	// wraps an error defined in "github.com/containerd/errdefs", or is a
 	// context timeout or cancelled error
 	if s, ok := status.FromError(errdefs.ToGRPC(err)); ok {
 		return s.Code()

vendor/github.com/Microsoft/hcsshim/internal/safefile/safeopen.go

@@ -243,7 +243,7 @@ func RemoveRelative(path string, root *os.File) error {
 	if err == nil {
 		defer f.Close()
 		err = deleteOnClose(f)
-		if err == syscall.ERROR_ACCESS_DENIED {
+		if err == syscall.ERROR_ACCESS_DENIED { //nolint:errorlint
 			// Maybe the file is marked readonly. Clear the bit and retry.
 			_ = clearReadOnly(f)
 			err = deleteOnClose(f)

vendor/github.com/Microsoft/hcsshim/internal/vmcompute/vmcompute.go

@@ -104,7 +104,7 @@ func execute(ctx gcontext.Context, timeout time.Duration, f func() error) error
 	}()
 	select {
 	case <-ctx.Done():
-		if ctx.Err() == gcontext.DeadlineExceeded {
+		if ctx.Err() == gcontext.DeadlineExceeded { //nolint:errorlint
 			log.G(ctx).WithField(logfields.Timeout, trueTimeout).
 				Warning("Syscall did not complete within operation timeout. This may indicate a platform issue. " +
 					"If it appears to be making no forward progress, obtain the stacks and see if there is a syscall " +
@@ -150,7 +150,7 @@ func HcsCreateComputeSystem(ctx gcontext.Context, id string, configuration strin
 		if result != "" {
 			span.AddAttributes(trace.StringAttribute("result", result))
 		}
-		if hr != errVmcomputeOperationPending {
+		if hr != errVmcomputeOperationPending { //nolint:errorlint // explicitly returned
 			oc.SetSpanStatus(span, hr)
 		}
 	}()
@@ -205,7 +205,7 @@ func HcsStartComputeSystem(ctx gcontext.Context, computeSystem HcsSystem, option
 		if result != "" {
 			span.AddAttributes(trace.StringAttribute("result", result))
 		}
-		if hr != errVmcomputeOperationPending {
+		if hr != errVmcomputeOperationPending { //nolint:errorlint // explicitly returned
 			oc.SetSpanStatus(span, hr)
 		}
 	}()
@@ -228,7 +228,7 @@ func HcsShutdownComputeSystem(ctx gcontext.Context, computeSystem HcsSystem, opt
 		if result != "" {
 			span.AddAttributes(trace.StringAttribute("result", result))
 		}
-		if hr != errVmcomputeOperationPending {
+		if hr != errVmcomputeOperationPending { //nolint:errorlint // explicitly returned
 			oc.SetSpanStatus(span, hr)
 		}
 	}()
@@ -251,7 +251,7 @@ func HcsTerminateComputeSystem(ctx gcontext.Context, computeSystem HcsSystem, op
 		if result != "" {
 			span.AddAttributes(trace.StringAttribute("result", result))
 		}
-		if hr != errVmcomputeOperationPending {
+		if hr != errVmcomputeOperationPending { //nolint:errorlint // explicitly returned
 			oc.SetSpanStatus(span, hr)
 		}
 	}()
@@ -274,7 +274,7 @@ func HcsPauseComputeSystem(ctx gcontext.Context, computeSystem HcsSystem, option
 		if result != "" {
 			span.AddAttributes(trace.StringAttribute("result", result))
 		}
-		if hr != errVmcomputeOperationPending {
+		if hr != errVmcomputeOperationPending { //nolint:errorlint // explicitly returned
 			oc.SetSpanStatus(span, hr)
 		}
 	}()
@@ -297,7 +297,7 @@ func HcsResumeComputeSystem(ctx gcontext.Context, computeSystem HcsSystem, optio
 		if result != "" {
 			span.AddAttributes(trace.StringAttribute("result", result))
 		}
-		if hr != errVmcomputeOperationPending {
+		if hr != errVmcomputeOperationPending { //nolint:errorlint // explicitly returned
 			oc.SetSpanStatus(span, hr)
 		}
 	}()
@@ -621,7 +621,7 @@ func HcsSaveComputeSystem(ctx gcontext.Context, computeSystem HcsSystem, options
 		if result != "" {
 			span.AddAttributes(trace.StringAttribute("result", result))
 		}
-		if hr != errVmcomputeOperationPending {
+		if hr != errVmcomputeOperationPending { //nolint:errorlint // explicitly returned
 			oc.SetSpanStatus(span, hr)
 		}
 	}()

vendor/github.com/Microsoft/hcsshim/internal/wclayer/baselayerreader.go

@@ -1,3 +1,5 @@
+//go:build windows
+
 package wclayer
 
 import (
@@ -64,7 +66,7 @@ func (r *baseLayerReader) walkUntilCancelled() error {
 		return nil
 	})
 
-	if err == errorIterationCanceled {
+	if err == errorIterationCanceled { //nolint:errorlint // explicitly returned
 		return nil
 	}
 
@@ -103,7 +105,7 @@ func (r *baseLayerReader) walkUntilCancelled() error {
 		return nil
 	})
 
-	if err == errorIterationCanceled {
+	if err == errorIterationCanceled { //nolint:errorlint // explicitly returned
 		return nil
 	}
 

vendor/github.com/Microsoft/hcsshim/internal/wclayer/converttobaselayer.go

@@ -1,3 +1,5 @@
+//go:build windows
+
 package wclayer
 
 import (

vendor/github.com/Microsoft/hcsshim/internal/wclayer/expandscratchsize.go

@@ -11,7 +11,6 @@ import (
 
 	"github.com/Microsoft/hcsshim/internal/hcserror"
 	"github.com/Microsoft/hcsshim/internal/oc"
-	"github.com/Microsoft/hcsshim/osversion"
 	"go.opencensus.io/trace"
 )
 
@@ -30,14 +29,17 @@ func ExpandScratchSize(ctx context.Context, path string, size uint64) (err error
 		return hcserror.New(err, title, "")
 	}
 
-	// Manually expand the volume now in order to work around bugs in 19H1 and
-	// prerelease versions of Vb. Remove once this is fixed in Windows.
-	if build := osversion.Build(); build >= osversion.V19H1 && build < 19020 {
-		err = expandSandboxVolume(ctx, path)
-		if err != nil {
-			return err
-		}
+	// Always expand the volume too. In case of legacy layers not expanding the volume here works because
+	// the PrepareLayer call internally handles the expansion. However, in other cases (like CimFS) we
+	// don't call PrepareLayer and so the volume will never be expanded.  This also means in case of
+	// legacy layers, we might have a small perf hit because the VHD is mounted twice for expansion (once
+	// here and once during the PrepareLayer call). But as long as the perf hit is minimal, we should be
+	// okay.
+	err = expandSandboxVolume(ctx, path)
+	if err != nil {
+		return err
 	}
+
 	return nil
 }
 

vendor/github.com/Microsoft/hcsshim/internal/wclayer/legacy.go

@@ -154,7 +154,7 @@ func (r *legacyLayerReader) walkUntilCancelled() error {
 		}
 		return nil
 	})
-	if err == errorIterationCanceled {
+	if err == errorIterationCanceled { //nolint:errorlint // explicitly returned
 		return nil
 	}
 	if err == nil {
@@ -196,7 +196,7 @@ func findBackupStreamSize(r io.Reader) (int64, error) {
 	for {
 		hdr, err := br.Next()
 		if err != nil {
-			if err == io.EOF {
+			if errors.Is(err, io.EOF) {
 				err = nil
 			}
 			return 0, err
@@ -428,7 +428,7 @@ func (w *legacyLayerWriter) initUtilityVM() error {
 		// immutable.
 		err = cloneTree(w.parentRoots[0], w.destRoot, UtilityVMFilesPath, mutatedUtilityVMFiles)
 		if err != nil {
-			return fmt.Errorf("cloning the parent utility VM image failed: %s", err)
+			return fmt.Errorf("cloning the parent utility VM image failed: %w", err)
 		}
 		w.HasUtilityVM = true
 	}
@@ -451,7 +451,7 @@ func (w *legacyLayerWriter) reset() error {
 
 		for {
 			bhdr, err := br.Next()
-			if err == io.EOF {
+			if errors.Is(err, io.EOF) {
 				// end of backupstream data
 				break
 			}

vendor/github.com/Microsoft/hcsshim/internal/winapi/cimfs.go

@@ -1,3 +1,5 @@
+//go:build windows
+
 package winapi
 
 import (
@@ -34,7 +36,7 @@ type CimFsFileMetadata struct {
 //sys CimDismountImage(volumeID *g) (hr error) = cimfs.CimDismountImage?
 
 //sys CimCreateImage(imagePath string, oldFSName *uint16, newFSName *uint16, cimFSHandle *FsHandle) (hr error) = cimfs.CimCreateImage?
-//sys CimCloseImage(cimFSHandle FsHandle) (hr error) = cimfs.CimCloseImage?
+//sys CimCloseImage(cimFSHandle FsHandle) = cimfs.CimCloseImage?
 //sys CimCommitImage(cimFSHandle FsHandle) (hr error) = cimfs.CimCommitImage?
 
 //sys CimCreateFile(cimFSHandle FsHandle, path string, file *CimFsFileMetadata, cimStreamHandle *StreamHandle) (hr error) = cimfs.CimCreateFile?

vendor/github.com/Microsoft/hcsshim/internal/winapi/zsyscall_windows.go

@@ -184,18 +184,12 @@ func _CMLocateDevNode(pdnDevInst *uint32, pDeviceID *uint16, uFlags uint32) (hr
 	return
 }
 
-func CimCloseImage(cimFSHandle FsHandle) (hr error) {
-	hr = procCimCloseImage.Find()
-	if hr != nil {
+func CimCloseImage(cimFSHandle FsHandle) (err error) {
+	err = procCimCloseImage.Find()
+	if err != nil {
 		return
 	}
-	r0, _, _ := syscall.Syscall(procCimCloseImage.Addr(), 1, uintptr(cimFSHandle), 0, 0)
-	if int32(r0) < 0 {
-		if r0&0x1fff0000 == 0x00070000 {
-			r0 &= 0xffff
-		}
-		hr = syscall.Errno(r0)
-	}
+	syscall.Syscall(procCimCloseImage.Addr(), 1, uintptr(cimFSHandle), 0, 0)
 	return
 }