pkg/libcontainer/nsinit/ns_linux.go
Michael Crosby e25ebdd06c Simplify namespaces with only nsinit
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 14:56:15 -08:00

35 lines
892 B
Go

package main
import (
"github.com/dotcloud/docker/pkg/libcontainer"
)
const (
SIGCHLD = 0x14
CLONE_VFORK = 0x00004000
CLONE_NEWNS = 0x00020000
CLONE_NEWUTS = 0x04000000
CLONE_NEWIPC = 0x08000000
CLONE_NEWUSER = 0x10000000
CLONE_NEWPID = 0x20000000
CLONE_NEWNET = 0x40000000
)
var namespaceMap = map[libcontainer.Namespace]int{
"": 0,
libcontainer.CLONE_NEWNS: CLONE_NEWNS,
libcontainer.CLONE_NEWUTS: CLONE_NEWUTS,
libcontainer.CLONE_NEWIPC: CLONE_NEWIPC,
libcontainer.CLONE_NEWUSER: CLONE_NEWUSER,
libcontainer.CLONE_NEWPID: CLONE_NEWPID,
libcontainer.CLONE_NEWNET: CLONE_NEWNET,
}
// 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 flag
}