tstor/pkg/go-nfs/nfs_onfsstat.go

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2024-03-28 13:09:42 +00:00
package nfs
import (
"bytes"
"context"
billy "github.com/go-git/go-billy/v5"
"github.com/willscott/go-nfs-client/nfs/xdr"
)
func onFSStat(ctx context.Context, w *response, userHandle Handler) error {
roothandle, err := xdr.ReadOpaque(w.req.Body)
if err != nil {
return &NFSStatusError{NFSStatusInval, err}
}
fs, path, err := userHandle.FromHandle(roothandle)
if err != nil {
return &NFSStatusError{NFSStatusStale, err}
}
defaults := FSStat{
TotalSize: 1 << 62,
FreeSize: 1 << 62,
AvailableSize: 1 << 62,
TotalFiles: 1 << 62,
FreeFiles: 1 << 62,
AvailableFiles: 1 << 62,
CacheHint: 0,
}
if !CapabilityCheck(fs, billy.WriteCapability) {
defaults.AvailableFiles = 0
defaults.AvailableSize = 0
}
err = userHandle.FSStat(ctx, fs, &defaults)
if err != nil {
if _, ok := err.(*NFSStatusError); ok {
return err
}
return &NFSStatusError{NFSStatusServerFault, err}
}
writer := bytes.NewBuffer([]byte{})
if err := xdr.Write(writer, uint32(NFSStatusOk)); err != nil {
return &NFSStatusError{NFSStatusServerFault, err}
}
if err := WritePostOpAttrs(writer, tryStat(ctx, fs, path)); err != nil {
return &NFSStatusError{NFSStatusServerFault, err}
}
if err := xdr.Write(writer, defaults); err != nil {
return &NFSStatusError{NFSStatusServerFault, err}
}
if err := w.Write(writer.Bytes()); err != nil {
return &NFSStatusError{NFSStatusServerFault, err}
}
return nil
}