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Phil Estes
7f1bcd5ebf
libcontainer/configs is used by the docker user namespace proposed patchset to use IDMap for uid/gid maps across the codebase. Given the client uses some of this code, it needs to build on non-Linux. This separates out the Linux-only syscalls using build tags. Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
32 lines
693 B
Go
32 lines
693 B
Go
// +build linux
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package configs
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import "syscall"
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func (n *Namespace) Syscall() int {
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return namespaceInfo[n.Type]
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}
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var namespaceInfo = map[NamespaceType]int{
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NEWNET: syscall.CLONE_NEWNET,
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NEWNS: syscall.CLONE_NEWNS,
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NEWUSER: syscall.CLONE_NEWUSER,
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NEWIPC: syscall.CLONE_NEWIPC,
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NEWUTS: syscall.CLONE_NEWUTS,
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NEWPID: syscall.CLONE_NEWPID,
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}
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// CloneFlags parses the container's Namespaces options to set the correct
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// flags on clone, unshare. This functions returns flags only for new namespaces.
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func (n *Namespaces) CloneFlags() uintptr {
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var flag int
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for _, v := range *n {
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if v.Path != "" {
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continue
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}
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flag |= namespaceInfo[v.Type]
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}
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return uintptr(flag)
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}
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