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reserved.go
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reserved.go
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// Copyright 2018 Authors of Cilium
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package identity
import "github.com/cilium/cilium/pkg/labels"
var (
// ReservedIdentityCache that maps all reserved identities from their
// numeric identity to their corresponding identity.
ReservedIdentityCache = map[NumericIdentity]*Identity{}
)
// AddReservedIdentity adds the reserved numeric identity with the respective
// label into the map of reserved identity cache.
func AddReservedIdentity(ni NumericIdentity, lbl string) {
identity := NewIdentity(ni, labels.Labels{lbl: labels.NewLabel(lbl, "", labels.LabelSourceReserved)})
// Pre-calculate the SHA256 hash.
identity.GetLabelsSHA256()
ReservedIdentityCache[ni] = identity
}
// LookupReservedIdentity looks up a reserved identity by its NumericIdentity
// and returns it if found. Returns nil if not found.
func LookupReservedIdentity(ni NumericIdentity) *Identity {
return ReservedIdentityCache[ni]
}
func init() {
IterateReservedIdentities(func(lbl string, ni NumericIdentity) {
identity := NewIdentity(ni, labels.Labels{lbl: labels.NewLabel(lbl, "", labels.LabelSourceReserved)})
// Pre-calculate the SHA256 hash.
identity.GetLabelsSHA256()
ReservedIdentityCache[ni] = identity
})
}