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// Copyright 2015 CNI authors
//
// 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 main
import (
"encoding/json"
"fmt"
"net"
"github.com/containernetworking/cni/pkg/types"
)
// IPAMConfig represents the IP related network configuration.
type IPAMConfig struct {
Name string
Type string `json:"type"`
RangeStart net.IP `json:"rangeStart"`
RangeEnd net.IP `json:"rangeEnd"`
Subnet types.IPNet `json:"subnet"`
Gateway net.IP `json:"gateway"`
Routes []types.Route `json:"routes"`
Args *IPAMArgs `json:"-"`
}
type IPAMArgs struct {
types.CommonArgs
IP net.IP `json:"ip,omitempty"`
}
type Net struct {
Name string `json:"name"`
IPAM *IPAMConfig `json:"ipam"`
}
// NewIPAMConfig creates a NetworkConfig from the given network name.
func LoadIPAMConfig(bytes []byte, args string) (*IPAMConfig, error) {
n := Net{}
if err := json.Unmarshal(bytes, &n); err != nil {
return nil, err
}
if args != "" {
n.IPAM.Args = &IPAMArgs{}
err := types.LoadArgs(args, n.IPAM.Args)
if err != nil {
return nil, err
}
}
if n.IPAM == nil {
return nil, fmt.Errorf("%q missing 'ipam' key")
}
// Copy net name into IPAM so not to drag Net struct around
n.IPAM.Name = n.Name
return n.IPAM, nil
}
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