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moby--moby/pkg/libcontainer/types.go
Michael Crosby 70f3b9f4ce Add ability to work with individual namespaces
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-03-21 00:23:34 +00:00

114 lines
2.9 KiB
Go

package libcontainer
import (
"errors"
"github.com/syndtr/gocapability/capability"
)
var (
ErrUnkownNamespace = errors.New("Unknown namespace")
ErrUnkownCapability = errors.New("Unknown capability")
ErrUnsupported = errors.New("Unsupported method")
)
// namespaceList is used to convert the libcontainer types
// into the names of the files located in /proc/<pid>/ns/* for
// each namespace
var (
namespaceList = Namespaces{}
capabilityList = Capabilities{
{Key: "SETPCAP", Value: capability.CAP_SETPCAP, Enabled: false},
{Key: "SYS_MODULE", Value: capability.CAP_SYS_MODULE, Enabled: false},
{Key: "SYS_RAWIO", Value: capability.CAP_SYS_RAWIO, Enabled: false},
{Key: "SYS_PACCT", Value: capability.CAP_SYS_PACCT, Enabled: false},
{Key: "SYS_ADMIN", Value: capability.CAP_SYS_ADMIN, Enabled: false},
{Key: "SYS_NICE", Value: capability.CAP_SYS_NICE, Enabled: false},
{Key: "SYS_RESOURCE", Value: capability.CAP_SYS_RESOURCE, Enabled: false},
{Key: "SYS_TIME", Value: capability.CAP_SYS_TIME, Enabled: false},
{Key: "SYS_TTY_CONFIG", Value: capability.CAP_SYS_TTY_CONFIG, Enabled: false},
{Key: "MKNOD", Value: capability.CAP_MKNOD, Enabled: false},
{Key: "AUDIT_WRITE", Value: capability.CAP_AUDIT_WRITE, Enabled: false},
{Key: "AUDIT_CONTROL", Value: capability.CAP_AUDIT_CONTROL, Enabled: false},
{Key: "MAC_OVERRIDE", Value: capability.CAP_MAC_OVERRIDE, Enabled: false},
{Key: "MAC_ADMIN", Value: capability.CAP_MAC_ADMIN, Enabled: false},
{Key: "NET_ADMIN", Value: capability.CAP_NET_ADMIN, Enabled: false},
}
)
type (
Namespace struct {
Key string `json:"key,omitempty"`
Enabled bool `json:"enabled,omitempty"`
Value int `json:"value,omitempty"`
File string `json:"file,omitempty"`
}
Namespaces []*Namespace
)
func (ns *Namespace) String() string {
return ns.Key
}
func GetNamespace(key string) *Namespace {
for _, ns := range namespaceList {
if ns.Key == key {
cpy := *ns
return &cpy
}
}
return nil
}
// Contains returns true if the specified Namespace is
// in the slice
func (n Namespaces) Contains(ns string) bool {
return n.Get(ns) != nil
}
func (n Namespaces) Get(ns string) *Namespace {
for _, nsp := range n {
if nsp.Key == ns {
return nsp
}
}
return nil
}
type (
Capability struct {
Key string `json:"key,omitempty"`
Enabled bool `json:"enabled"`
Value capability.Cap `json:"value,omitempty"`
}
Capabilities []*Capability
)
func (c *Capability) String() string {
return c.Key
}
func GetCapability(key string) *Capability {
for _, capp := range capabilityList {
if capp.Key == key {
cpy := *capp
return &cpy
}
}
return nil
}
// Contains returns true if the specified Capability is
// in the slice
func (c Capabilities) Contains(capp string) bool {
return c.Get(capp) != nil
}
func (c Capabilities) Get(capp string) *Capability {
for _, cap := range c {
if cap.Key == capp {
return cap
}
}
return nil
}