/usr/share/gocode/src/github.com/docker/libnetwork/ipams/null/null.go is in golang-github-docker-libnetwork-dev 0.8.0-dev.2+git20170202.599.45b4086-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | // Package null implements the null ipam driver. Null ipam driver satisfies ipamapi contract,
// but does not effectively reserve/allocate any address pool or address
package null
import (
"fmt"
"net"
"github.com/docker/libnetwork/discoverapi"
"github.com/docker/libnetwork/ipamapi"
"github.com/docker/libnetwork/types"
)
var (
defaultAS = "null"
defaultPool, _ = types.ParseCIDR("0.0.0.0/0")
defaultPoolID = fmt.Sprintf("%s/%s", defaultAS, defaultPool.String())
)
type allocator struct{}
func (a *allocator) GetDefaultAddressSpaces() (string, string, error) {
return defaultAS, defaultAS, nil
}
func (a *allocator) RequestPool(addressSpace, pool, subPool string, options map[string]string, v6 bool) (string, *net.IPNet, map[string]string, error) {
if addressSpace != defaultAS {
return "", nil, nil, types.BadRequestErrorf("unknown address space: %s", addressSpace)
}
if pool != "" {
return "", nil, nil, types.BadRequestErrorf("null ipam driver does not handle specific address pool requests")
}
if subPool != "" {
return "", nil, nil, types.BadRequestErrorf("null ipam driver does not handle specific address subpool requests")
}
if v6 {
return "", nil, nil, types.BadRequestErrorf("null ipam driver does not handle IPv6 address pool pool requests")
}
return defaultPoolID, defaultPool, nil, nil
}
func (a *allocator) ReleasePool(poolID string) error {
return nil
}
func (a *allocator) RequestAddress(poolID string, ip net.IP, opts map[string]string) (*net.IPNet, map[string]string, error) {
if poolID != defaultPoolID {
return nil, nil, types.BadRequestErrorf("unknown pool id: %s", poolID)
}
return nil, nil, nil
}
func (a *allocator) ReleaseAddress(poolID string, ip net.IP) error {
if poolID != defaultPoolID {
return types.BadRequestErrorf("unknown pool id: %s", poolID)
}
return nil
}
func (a *allocator) DiscoverNew(dType discoverapi.DiscoveryType, data interface{}) error {
return nil
}
func (a *allocator) DiscoverDelete(dType discoverapi.DiscoveryType, data interface{}) error {
return nil
}
func (a *allocator) IsBuiltIn() bool {
return true
}
// Init registers a remote ipam when its plugin is activated
func Init(ic ipamapi.Callback, l, g interface{}) error {
return ic.RegisterIpamDriver(ipamapi.NullIPAM, &allocator{})
}
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