vendor: update buildkit to 539be170

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

vendor/github.com/moby/sys/mount/flags_bsd.go

@@ -1,3 +1,4 @@
+//go:build freebsd || openbsd
 // +build freebsd openbsd
 
 package mount

vendor/github.com/moby/sys/mount/flags_unix.go

@@ -1,3 +1,4 @@
+//go:build !darwin && !windows
 // +build !darwin,!windows
 
 package mount
@@ -101,7 +102,7 @@ func MergeTmpfsOptions(options []string) ([]string, error) {
 		}
 		opt := strings.SplitN(option, "=", 2)
 		if len(opt) != 2 || !validFlags[opt[0]] {
-			return nil, fmt.Errorf("Invalid tmpfs option %q", opt)
+			return nil, fmt.Errorf("invalid tmpfs option %q", opt)
 		}
 		if !dataCollisions[opt[0]] {
 			// We prepend the option and add to collision map

vendor/github.com/moby/sys/mount/go.mod

@@ -1,8 +1,8 @@
 module github.com/moby/sys/mount
 
-go 1.14
+go 1.16
 
 require (
-	github.com/moby/sys/mountinfo v0.4.0
-	golang.org/x/sys v0.0.0-20200922070232-aee5d888a860
+	github.com/moby/sys/mountinfo v0.5.0
+	golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359
 )

vendor/github.com/moby/sys/mount/go.sum

@@ -1,5 +1,4 @@
-github.com/moby/sys/mountinfo v0.4.0 h1:1KInV3Huv18akCu58V7lzNlt+jFmqlu1EaErnEHE/VM=
-github.com/moby/sys/mountinfo v0.4.0/go.mod h1:rEr8tzG/lsIZHBtN/JjGG+LMYx9eXgW2JI+6q0qou+A=
-golang.org/x/sys v0.0.0-20200909081042-eff7692f9009/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200922070232-aee5d888a860 h1:YEu4SMq7D0cmT7CBbXfcH0NZeuChAXwsHe/9XueUO6o=
-golang.org/x/sys v0.0.0-20200922070232-aee5d888a860/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+github.com/moby/sys/mountinfo v0.5.0 h1:2Ks8/r6lopsxWi9m58nlwjaeSzUX9iiL1vj5qB/9ObI=
+github.com/moby/sys/mountinfo v0.5.0/go.mod h1:3bMD3Rg+zkqx8MRYPi7Pyb0Ie97QEBmdxbhnCLlSvSU=
+golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359 h1:2B5p2L5IfGiD7+b9BOoRMC6DgObAVZV+Fsp050NqXik=
+golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

vendor/github.com/moby/sys/mount/mount_errors.go

@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 package mount

vendor/github.com/moby/sys/mount/mount_unix.go

@@ -1,3 +1,4 @@
+//go:build !darwin && !windows
 // +build !darwin,!windows
 
 package mount
@@ -22,7 +23,7 @@ func Mount(device, target, mType, options string) error {
 // a normal unmount. If target is not a mount point, no error is returned.
 func Unmount(target string) error {
 	err := unix.Unmount(target, mntDetach)
-	if err == nil || err == unix.EINVAL {
+	if err == nil || err == unix.EINVAL { //nolint:errorlint // unix errors are bare
 		// Ignore "not mounted" error here. Note the same error
 		// can be returned if flags are invalid, so this code
 		// assumes that the flags value is always correct.

vendor/github.com/moby/sys/mount/mounter_freebsd.go

@@ -1,4 +1,5 @@
-// +build freebsd,cgo openbsd,cgo
+//go:build freebsd && cgo
+// +build freebsd,cgo
 
 package mount
 

vendor/github.com/moby/sys/mount/mounter_linux.go

@@ -65,7 +65,6 @@ func mount(device, target, mType string, flags uintptr, data string) error {
 				flags:  oflags | unix.MS_REMOUNT,
 				err:    err,
 			}
-
 		}
 	}
 

vendor/github.com/moby/sys/mount/mounter_openbsd.go

@@ -0,0 +1,78 @@
+//go:build openbsd && cgo
+// +build openbsd,cgo
+
+/*
+   Due to how OpenBSD mount(2) works, filesystem types need to be
+   supported explicitly since it uses separate structs to pass
+   filesystem-specific arguments.
+
+   For now only UFS/FFS is supported as it's the default fs
+   on OpenBSD systems.
+
+   See: https://man.openbsd.org/mount.2
+*/
+
+package mount
+
+/*
+#include <sys/types.h>
+#include <sys/mount.h>
+*/
+import "C"
+
+import (
+	"fmt"
+	"syscall"
+	"unsafe"
+)
+
+func createExportInfo(readOnly bool) C.struct_export_args {
+	exportFlags := C.int(0)
+	if readOnly {
+		exportFlags = C.MNT_EXRDONLY
+	}
+	out := C.struct_export_args{
+		ex_root:  0,
+		ex_flags: exportFlags,
+	}
+	return out
+}
+
+func createUfsArgs(device string, readOnly bool) unsafe.Pointer {
+	out := &C.struct_ufs_args{
+		fspec:       C.CString(device),
+		export_info: createExportInfo(readOnly),
+	}
+	return unsafe.Pointer(out)
+}
+
+func mount(device, target, mType string, flag uintptr, data string) error {
+	readOnly := flag&RDONLY != 0
+
+	var fsArgs unsafe.Pointer
+
+	switch mType {
+	case "ffs":
+		fsArgs = createUfsArgs(device, readOnly)
+	default:
+		return &mountError{
+			op:     "mount",
+			source: device,
+			target: target,
+			flags:  flag,
+			err:    fmt.Errorf("unsupported file system type: %s", mType),
+		}
+	}
+
+	if errno := C.mount(C.CString(mType), C.CString(target), C.int(flag), fsArgs); errno != 0 {
+		return &mountError{
+			op:     "mount",
+			source: device,
+			target: target,
+			flags:  flag,
+			err:    syscall.Errno(errno),
+		}
+	}
+
+	return nil
+}

vendor/github.com/moby/sys/mount/mounter_unsupported.go

@@ -1,3 +1,4 @@
+//go:build (!linux && !freebsd && !openbsd && !windows) || (freebsd && !cgo) || (openbsd && !cgo)
 // +build !linux,!freebsd,!openbsd,!windows freebsd,!cgo openbsd,!cgo
 
 package mount

vendor/github.com/moby/sys/mountinfo/go.mod

@@ -1,5 +1,5 @@
 module github.com/moby/sys/mountinfo
 
-go 1.14
+go 1.16
 
-require golang.org/x/sys v0.0.0-20200909081042-eff7692f9009
+require golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359

vendor/github.com/moby/sys/mountinfo/go.sum

@@ -1,2 +1,2 @@
-golang.org/x/sys v0.0.0-20200909081042-eff7692f9009 h1:W0lCpv29Hv0UaM1LXb9QlBHLNP8UFfcKjblhVCWftOM=
-golang.org/x/sys v0.0.0-20200909081042-eff7692f9009/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359 h1:2B5p2L5IfGiD7+b9BOoRMC6DgObAVZV+Fsp050NqXik=
+golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

vendor/github.com/moby/sys/mountinfo/mounted_linux.go

@@ -16,9 +16,6 @@ func mountedByOpenat2(path string) (bool, error) {
 		Flags: unix.O_PATH | unix.O_CLOEXEC,
 	})
 	if err != nil {
-		if err == unix.ENOENT { // not a mount
-			return false, nil
-		}
 		return false, &os.PathError{Op: "openat2", Path: dir, Err: err}
 	}
 	fd, err := unix.Openat2(dirfd, last, &unix.OpenHow{
@@ -26,20 +23,22 @@ func mountedByOpenat2(path string) (bool, error) {
 		Resolve: unix.RESOLVE_NO_XDEV,
 	})
 	_ = unix.Close(dirfd)
-	switch err {
+	switch err { //nolint:errorlint // unix errors are bare
 	case nil: // definitely not a mount
 		_ = unix.Close(fd)
 		return false, nil
 	case unix.EXDEV: // definitely a mount
 		return true, nil
-	case unix.ENOENT: // not a mount
-		return false, nil
 	}
 	// not sure
 	return false, &os.PathError{Op: "openat2", Path: path, Err: err}
 }
 
 func mounted(path string) (bool, error) {
+	path, err := normalizePath(path)
+	if err != nil {
+		return false, err
+	}
 	// Try a fast path, using openat2() with RESOLVE_NO_XDEV.
 	mounted, err := mountedByOpenat2(path)
 	if err == nil {

vendor/github.com/moby/sys/mountinfo/mounted_unix.go

@@ -1,9 +1,9 @@
-// +build linux freebsd,cgo openbsd,cgo
+//go:build linux || (freebsd && cgo) || (openbsd && cgo) || (darwin && cgo)
+// +build linux freebsd,cgo openbsd,cgo darwin,cgo
 
 package mountinfo
 
 import (
-	"errors"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -15,10 +15,6 @@ func mountedByStat(path string) (bool, error) {
 	var st unix.Stat_t
 
 	if err := unix.Lstat(path, &st); err != nil {
-		if err == unix.ENOENT {
-			// Treat ENOENT as "not mounted".
-			return false, nil
-		}
 		return false, &os.PathError{Op: "stat", Path: path, Err: err}
 	}
 	dev := st.Dev
@@ -49,14 +45,6 @@ func normalizePath(path string) (realPath string, err error) {
 }
 
 func mountedByMountinfo(path string) (bool, error) {
-	path, err := normalizePath(path)
-	if err != nil {
-		if errors.Is(err, unix.ENOENT) {
-			// treat ENOENT as "not mounted"
-			return false, nil
-		}
-		return false, err
-	}
 	entries, err := GetMounts(SingleEntryFilter(path))
 	if err != nil {
 		return false, err

vendor/github.com/moby/sys/mountinfo/mountinfo.go

@@ -10,11 +10,12 @@ func GetMounts(f FilterFunc) ([]*Info, error) {
 	return parseMountTable(f)
 }
 
-// Mounted determines if a specified path is a mount point.
+// Mounted determines if a specified path is a mount point. In case of any
+// error, false (and an error) is returned.
 //
-// The argument must be an absolute path, with all symlinks resolved, and clean.
-// One way to ensure it is to process the path using filepath.Abs followed by
-// filepath.EvalSymlinks before calling this function.
+// The non-existent path returns an error. If a caller is not interested
+// in this particular error, it should handle it separately using e.g.
+// errors.Is(err, os.ErrNotExist).
 func Mounted(path string) (bool, error) {
 	// root is always mounted
 	if path == string(os.PathSeparator) {

vendor/github.com/moby/sys/mountinfo/mountinfo_bsd.go

@@ -1,4 +1,5 @@
-// +build freebsd,cgo openbsd,cgo
+//go:build (freebsd && cgo) || (openbsd && cgo) || (darwin && cgo)
+// +build freebsd,cgo openbsd,cgo darwin,cgo
 
 package mountinfo
 
@@ -21,7 +22,7 @@ func parseMountTable(filter FilterFunc) ([]*Info, error) {
 
 	count := int(C.getmntinfo(&rawEntries, C.MNT_WAIT))
 	if count == 0 {
-		return nil, fmt.Errorf("Failed to call getmntinfo")
+		return nil, fmt.Errorf("failed to call getmntinfo")
 	}
 
 	var entries []C.struct_statfs
@@ -55,6 +56,10 @@ func parseMountTable(filter FilterFunc) ([]*Info, error) {
 }
 
 func mounted(path string) (bool, error) {
+	path, err := normalizePath(path)
+	if err != nil {
+		return false, err
+	}
 	// Fast path: compare st.st_dev fields.
 	// This should always work for FreeBSD and OpenBSD.
 	mounted, err := mountedByStat(path)

vendor/github.com/moby/sys/mountinfo/mountinfo_linux.go

@@ -52,7 +52,7 @@ func GetMountsFromReader(r io.Reader, filter FilterFunc) ([]*Info, error) {
 		numFields := len(fields)
 		if numFields < 10 {
 			// should be at least 10 fields
-			return nil, fmt.Errorf("Parsing '%s' failed: not enough fields (%d)", text, numFields)
+			return nil, fmt.Errorf("parsing '%s' failed: not enough fields (%d)", text, numFields)
 		}
 
 		// separator field
@@ -67,7 +67,7 @@ func GetMountsFromReader(r io.Reader, filter FilterFunc) ([]*Info, error) {
 		for fields[sepIdx] != "-" {
 			sepIdx--
 			if sepIdx == 5 {
-				return nil, fmt.Errorf("Parsing '%s' failed: missing - separator", text)
+				return nil, fmt.Errorf("parsing '%s' failed: missing - separator", text)
 			}
 		}
 
@@ -75,46 +75,39 @@ func GetMountsFromReader(r io.Reader, filter FilterFunc) ([]*Info, error) {
 
 		p.Mountpoint, err = unescape(fields[4])
 		if err != nil {
-			return nil, fmt.Errorf("Parsing '%s' failed: mount point: %w", fields[4], err)
+			return nil, fmt.Errorf("parsing '%s' failed: mount point: %w", fields[4], err)
 		}
 		p.FSType, err = unescape(fields[sepIdx+1])
 		if err != nil {
-			return nil, fmt.Errorf("Parsing '%s' failed: fstype: %w", fields[sepIdx+1], err)
+			return nil, fmt.Errorf("parsing '%s' failed: fstype: %w", fields[sepIdx+1], err)
 		}
 		p.Source, err = unescape(fields[sepIdx+2])
 		if err != nil {
-			return nil, fmt.Errorf("Parsing '%s' failed: source: %w", fields[sepIdx+2], err)
+			return nil, fmt.Errorf("parsing '%s' failed: source: %w", fields[sepIdx+2], err)
 		}
 		p.VFSOptions = fields[sepIdx+3]
 
 		// ignore any numbers parsing errors, as there should not be any
 		p.ID, _ = strconv.Atoi(fields[0])
 		p.Parent, _ = strconv.Atoi(fields[1])
-		mm := strings.Split(fields[2], ":")
+		mm := strings.SplitN(fields[2], ":", 3)
 		if len(mm) != 2 {
-			return nil, fmt.Errorf("Parsing '%s' failed: unexpected minor:major pair %s", text, mm)
+			return nil, fmt.Errorf("parsing '%s' failed: unexpected major:minor pair %s", text, mm)
 		}
 		p.Major, _ = strconv.Atoi(mm[0])
 		p.Minor, _ = strconv.Atoi(mm[1])
 
 		p.Root, err = unescape(fields[3])
 		if err != nil {
-			return nil, fmt.Errorf("Parsing '%s' failed: root: %w", fields[3], err)
+			return nil, fmt.Errorf("parsing '%s' failed: root: %w", fields[3], err)
 		}
 
 		p.Options = fields[5]
 
 		// zero or more optional fields
-		switch {
-		case sepIdx == 6:
-			// zero, do nothing
-		case sepIdx == 7:
-			p.Optional = fields[6]
-		default:
-			p.Optional = strings.Join(fields[6:sepIdx-1], " ")
-		}
+		p.Optional = strings.Join(fields[6:sepIdx], " ")
 
-		// Run the filter after parsing all of the fields.
+		// Run the filter after parsing all fields.
 		var skip, stop bool
 		if filter != nil {
 			skip, stop = filter(p)

vendor/github.com/moby/sys/mountinfo/mountinfo_unsupported.go

@@ -1,4 +1,5 @@
-// +build !windows,!linux,!freebsd,!openbsd freebsd,!cgo openbsd,!cgo
+//go:build (!windows && !linux && !freebsd && !openbsd && !darwin) || (freebsd && !cgo) || (openbsd && !cgo) || (darwin && !cgo)
+// +build !windows,!linux,!freebsd,!openbsd,!darwin freebsd,!cgo openbsd,!cgo darwin,!cgo
 
 package mountinfo