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moby--moby/daemon/volumes_linux.go
Kazuhiro Sera 1e49fdcafc Fix the several typos detected by github.com/client9/misspell
Signed-off-by: Kazuhiro Sera <seratch@gmail.com>
2018-08-09 00:45:00 +09:00

36 lines
1.3 KiB
Go

package daemon
import (
"strings"
"github.com/docker/docker/api/types/mount"
"github.com/docker/docker/errdefs"
"github.com/pkg/errors"
)
// validateBindDaemonRoot ensures that if a given mountpoint's source is within
// the daemon root path, that the propagation is setup to prevent a container
// from holding private references to a mount within the daemon root, which
// can cause issues when the daemon attempts to remove the mountpoint.
func (daemon *Daemon) validateBindDaemonRoot(m mount.Mount) (bool, error) {
if m.Type != mount.TypeBind {
return false, nil
}
// check if the source is within the daemon root, or if the daemon root is within the source
if !strings.HasPrefix(m.Source, daemon.root) && !strings.HasPrefix(daemon.root, m.Source) {
return false, nil
}
if m.BindOptions == nil {
return true, nil
}
switch m.BindOptions.Propagation {
case mount.PropagationRSlave, mount.PropagationRShared, "":
return m.BindOptions.Propagation == "", nil
default:
}
return false, errdefs.InvalidParameter(errors.Errorf(`invalid mount config: must use either propagation mode "rslave" or "rshared" when mount source is within the daemon root, daemon root: %q, bind mount source: %q, propagation: %q`, daemon.root, m.Source, m.BindOptions.Propagation))
}