}

var (
	// ErrInvalidEncryptionMethod indicates that the specified SSE encryption method
	// is not supported.
	ErrInvalidEncryptionMethod = Errorf("The encryption method is not supported")

	// ErrInvalidCustomerAlgorithm indicates that the specified SSE-C algorithm
	// is not supported.
	ErrInvalidCustomerAlgorithm = Errorf("The SSE-C algorithm is not supported")

	// ChecksumSHA256 indicates a SHA256 checksum.
	ChecksumSHA256
	// ChecksumSHA1 indicates a SHA-1 checksum.
	ChecksumSHA1
	// ChecksumCRC32 indicates a CRC32 checksum with IEEE table.
	ChecksumCRC32
	// ChecksumCRC32C indicates a CRC32 checksum with Castagnoli table.
	ChecksumCRC32C
	// ChecksumInvalid indicates an invalid checksum.
	ChecksumInvalid
	// ChecksumMultipart indicates the checksum is from a multipart upload.

	// Global user opts context
	globalServerCtxt serverCtxt

	// Indicates if the running minio server is distributed setup.
	globalIsDistErasure = false

	// Indicates if the running minio server is an erasure-code backend.
	globalIsErasure = false

	// Indicates if the running minio server is in single drive XL mode.
	globalIsErasureSD = false

	// Indicates if server code should go through testing path.
	globalIsTesting = false

var errDiskNotDir = StorageErr("drive is not directory or mountpoint")

// errDiskNotFound - cannot find the underlying configured disk anymore.
var errDiskNotFound = StorageErr("drive not found")

// errDiskOngoingReq - indicates if the disk has an on-going request in progress.
var errDiskOngoingReq = StorageErr("drive still did not complete the request")

// errDriveIsRoot - cannot use the disk since its a root disk.

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package disk

import (
	"os"
	"syscall"

	"github.com/ncw/directio"
	"golang.org/x/sys/unix"
)

// ODirectPlatform indicates if the platform supports O_DIRECT
const ODirectPlatform = true

// OpenFileDirectIO - bypass kernel cache.
func OpenFileDirectIO(filePath string, flag int, perm os.FileMode) (*os.File, error) {

	"github.com/minio/pkg/v2/policy"
	"golang.org/x/exp/slices"
)

// http Header "x-amz-content-sha256" == "UNSIGNED-PAYLOAD" indicates that the
// client did not calculate sha256 of the payload.
const unsignedPayload = "UNSIGNED-PAYLOAD"

// http Header "x-amz-content-sha256" == "STREAMING-UNSIGNED-PAYLOAD-TRAILER" indicates that the
// client did not calculate sha256 of the payload and there is a trailer.

	ActualSize *int64

	// IsDir indicates if the object is prefix.
	IsDir bool

	// Hex encoded unique entity tag of the object.
	ETag string

	// Version ID of this object.
	VersionID string

	// IsLatest indicates if this is the latest current version
	// latest can be true for delete marker or a version.
	IsLatest bool

	// DeleteMarker indicates if the versionId corresponds

	listenerMutex   sync.Mutex    // to guard 'listener' field.
	listener        *httpListener // HTTP listener for all 'Addrs' field.
	inShutdown      uint32        // indicates whether the server is in shutdown or not
	requestCount    int32         // counter holds no. of request in progress.
}

// GetRequestCount - returns number of request in progress.
func (srv *Server) GetRequestCount() int {

	Optional    bool   `json:"optional"`

	// Indicates if the value contains sensitive info that shouldn't be exposed
	// in certain apis (such as Health Diagnostics/Callhome)
	Sensitive bool `json:"-"`

	// Indicates if the value is a secret such as a password that shouldn't be
	// exposed by the server
	Secret bool `json:"-"`

	// Indicates if sub-sys supports multiple targets.

	"github.com/golang-jwt/jwt/v4"
	"github.com/minio/minio/internal/config"
	xhttp "github.com/minio/minio/internal/http"
)

var (
	defaultOperatorContextTimeout = 10 * time.Second
	// ErrNotImplemented - Indicates the functionality which is not implemented
	ErrNotImplemented = errors.New("The method is not implemented")
)

func (c *OperatorDNS) addAuthHeader(r *http.Request) error {
	if c.username == "" || c.password == "" {