Files
docker-cli/vendor/github.com/Microsoft/hcsshim/internal/wclayer/layerutils.go
Sebastiaan van Stijn dff269b5e4 vendor: bump hcsshim b3f49c06ffaeef24d09c6c08ec8ec8425a0303e2
full diff: https://2226e083fc390003ae5aa8325c3c92789afa0e7a...b3f49c06ffaeef24d09c6c08ec8ec8425a0303e2

includes:

- microsoft/hcsshim#718 wclayer: Work around Windows bug when expanding sandbox size
    - fixes microsoft/hcsshim#708 Windows Host Compute Service bug breaks docker (and other) sandboxes bigger than 20G on Windows 1903
    - fixes microsoft/hcsshim#624The hcsshim on Windows 10 1903 always fails to build Docker image
    - fixes/addresses docker/for-win#3884 An error occurred while attempting to build Docker image (especially this comment and the next comments after: https://github.com/docker/for-win/issues/3884#issuecomment-498939672)
    - fixes/addresses docker/for-win#4100 Windows 1903 fails when storage-opt used
    - fixes moby/moby#36831 hcsshim::PrepareLayer failed in Win32: The parameter is incorrect (https://github.com/moby/moby/issues/36831#issuecomment-498612392)
    - fixes Stannieman/audacity-with-asio-builder#5 Docker won't build container
    - fixes MicrosoftDocs/visualstudio-docs#3523 Error when running build with storage-opts set
    - fixes moby/moby#39524 Docker build windows 19.03 --storage-opt size>20G

Note that this is a temporary workaround for a bug in the platform, and will be reverted once that is addressed:

- microsoft/hcsshim#721 Revert 718 when Windows 19H1 has expand sandbox fix

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2020-01-07 10:28:00 +01:00

97 lines
1.8 KiB
Go

package wclayer
// This file contains utility functions to support storage (graph) related
// functionality.
import (
"syscall"
"github.com/Microsoft/go-winio/pkg/guid"
"github.com/sirupsen/logrus"
)
/* To pass into syscall, we need a struct matching the following:
enum GraphDriverType
{
DiffDriver,
FilterDriver
};
struct DriverInfo {
GraphDriverType Flavour;
LPCWSTR HomeDir;
};
*/
type driverInfo struct {
Flavour int
HomeDirp *uint16
}
var (
utf16EmptyString uint16
stdDriverInfo = driverInfo{1, &utf16EmptyString}
)
/* To pass into syscall, we need a struct matching the following:
typedef struct _WC_LAYER_DESCRIPTOR {
//
// The ID of the layer
//
GUID LayerId;
//
// Additional flags
//
union {
struct {
ULONG Reserved : 31;
ULONG Dirty : 1; // Created from sandbox as a result of snapshot
};
ULONG Value;
} Flags;
//
// Path to the layer root directory, null-terminated
//
PCWSTR Path;
} WC_LAYER_DESCRIPTOR, *PWC_LAYER_DESCRIPTOR;
*/
type WC_LAYER_DESCRIPTOR struct {
LayerId guid.GUID
Flags uint32
Pathp *uint16
}
func layerPathsToDescriptors(parentLayerPaths []string) ([]WC_LAYER_DESCRIPTOR, error) {
// Array of descriptors that gets constructed.
var layers []WC_LAYER_DESCRIPTOR
for i := 0; i < len(parentLayerPaths); i++ {
g, err := LayerID(parentLayerPaths[i])
if err != nil {
logrus.WithError(err).Debug("Failed to convert name to guid")
return nil, err
}
p, err := syscall.UTF16PtrFromString(parentLayerPaths[i])
if err != nil {
logrus.WithError(err).Debug("Failed conversion of parentLayerPath to pointer")
return nil, err
}
layers = append(layers, WC_LAYER_DESCRIPTOR{
LayerId: g,
Flags: 0,
Pathp: p,
})
}
return layers, nil
}