runc/namespaces/namespaces.go

33 lines
780 B
Go

/*
TODO
pivot root
cgroups
more mount stuff that I probably am forgetting
apparmor
*/
package namespaces
import (
"github.com/dotcloud/docker/pkg/libcontainer"
)
// JoinExistingNamespace uses the fd of an existing linux namespace and
// has the current process join that namespace or the spacespace specified by ns
func JoinExistingNamespace(fd uintptr, ns libcontainer.Namespace) error {
flag := namespaceMap[ns]
if err := Setns(fd, uintptr(flag)); err != nil {
return err
}
return nil
}
// getNamespaceFlags parses the container's Namespaces options to set the correct
// flags on clone, unshare, and setns
func getNamespaceFlags(namespaces libcontainer.Namespaces) (flag int) {
for _, ns := range namespaces {
flag |= namespaceMap[ns]
}
return
}