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feat: dummy linux interface and existing IPs
Signed-off-by: Milan Lenco <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| // Copyright (c) 2020 Pantheon.tech | ||
| // | ||
| // 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 descriptor | ||
|
|
||
| import ( | ||
| "github.com/pkg/errors" | ||
| "go.ligato.io/vpp-agent/v3/plugins/linux/ifplugin/linuxcalls" | ||
|
|
||
| "go.ligato.io/vpp-agent/v3/plugins/linux/ifplugin/ifaceidx" | ||
| nslinuxcalls "go.ligato.io/vpp-agent/v3/plugins/linux/nsplugin/linuxcalls" | ||
| interfaces "go.ligato.io/vpp-agent/v3/proto/ligato/linux/interfaces" | ||
| ) | ||
|
|
||
| // createDummyIf creates dummy interface. | ||
| func (d *InterfaceDescriptor) createDummyIf( | ||
| nsCtx nslinuxcalls.NamespaceMgmtCtx, linuxIf *interfaces.Interface, | ||
| ) (md *ifaceidx.LinuxIfMetadata, err error) { | ||
| hostName := getHostIfName(linuxIf) | ||
| agentPrefix := d.serviceLabel.GetAgentPrefix() | ||
|
|
||
| // move to the namespace with the interface | ||
| revert, err := d.nsPlugin.SwitchToNamespace(nsCtx, linuxIf.Namespace) | ||
| if err != nil { | ||
| d.log.Error("switch to namespace failed:", err) | ||
| return nil, err | ||
| } | ||
| defer revert() | ||
|
|
||
| // create a new Dummy interface | ||
| err = d.ifHandler.AddDummyInterface(hostName) | ||
| if err != nil { | ||
| return nil, errors.WithMessagef(err, | ||
| "failed to create dummy interface %s", hostName) | ||
| } | ||
|
|
||
| // add alias | ||
| err = d.ifHandler.SetInterfaceAlias(hostName, agentPrefix+linuxcalls.GetDummyIfAlias(linuxIf)) | ||
| if err != nil { | ||
| return nil, errors.WithMessagef(err, | ||
| "error setting alias for Dummy interface %s", hostName) | ||
| } | ||
|
|
||
| // build metadata | ||
| link, err := d.ifHandler.GetLinkByName(hostName) | ||
| if err != nil { | ||
| return nil, errors.WithMessagef(err, "error getting link %s", hostName) | ||
| } | ||
|
|
||
| return &ifaceidx.LinuxIfMetadata{ | ||
| Namespace: linuxIf.Namespace, | ||
| LinuxIfIndex: link.Attrs().Index, | ||
| HostIfName: hostName, | ||
| }, nil | ||
| } | ||
|
|
||
| // deleteDummyIf removes dummy interface. | ||
| func (d *InterfaceDescriptor) deleteDummyIf(linuxIf *interfaces.Interface) error { | ||
| hostName := getHostIfName(linuxIf) | ||
| err := d.ifHandler.DeleteInterface(hostName) | ||
| if err != nil { | ||
| d.log.Error(err) | ||
| return err | ||
| } | ||
| return nil | ||
| } |
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