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added VLAN information to interfaces
closes #38
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| package codecommunicator | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "github.com/inexio/thola/internal/device" | ||
| "github.com/inexio/thola/internal/network" | ||
| "github.com/pkg/errors" | ||
| "github.com/rs/zerolog/log" | ||
| "strings" | ||
| ) | ||
|
|
||
| type junosCommunicator struct { | ||
| codeCommunicator | ||
| } | ||
|
|
||
| func (c *junosCommunicator) GetInterfaces(ctx context.Context) ([]device.Interface, error) { | ||
| interfaces, err := c.deviceClass.GetInterfaces(ctx) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| con, ok := network.DeviceConnectionFromContext(ctx) | ||
| if !ok || con.SNMP == nil { | ||
| return nil, errors.New("snmp client is empty") | ||
| } | ||
|
|
||
| // dot1dBasePortIfIndex | ||
| res, err := con.SNMP.SnmpClient.SNMPWalk(ctx, "1.3.6.1.2.1.17.1.4.1.2") | ||
| if err != nil { | ||
| log.Ctx(ctx).Trace().Err(err).Msg("failed to get dot1dBasePortIfIndex, skipping VLANs") | ||
| return interfaces, nil | ||
| } | ||
|
|
||
| portIfIndex := make(map[string]string) | ||
| for _, response := range res { | ||
| ifIndex, err := response.GetValueString() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| oid := response.GetOID() | ||
| oidSplit := strings.Split(oid, ".") | ||
|
|
||
| portIfIndex[oidSplit[len(oidSplit)-1]] = ifIndex | ||
| } | ||
|
|
||
| // jnxExVlanPortStatus | ||
| res, err = con.SNMP.SnmpClient.SNMPWalk(ctx, "1.3.6.1.4.1.2636.3.40.1.5.1.7.1.3") | ||
| if err != nil { | ||
| log.Ctx(ctx).Trace().Err(err).Msg("failed to get jnxExVlanPortStatus, skipping VLANs") | ||
| return interfaces, nil | ||
| } | ||
|
|
||
| vlanIndexVLAN := make(map[string]device.VLAN) | ||
| ifIndexVLANIndices := make(map[string][]string) | ||
| for _, response := range res { | ||
| status, err := response.GetValueString() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| oid := response.GetOID() | ||
| oidSplit := strings.Split(oid, ".") | ||
|
|
||
| ifIndex := portIfIndex[oidSplit[len(oidSplit)-1]] | ||
| ifIndexVLANIndices[ifIndex] = append(ifIndexVLANIndices[ifIndex], oidSplit[len(oidSplit)-2]) | ||
| vlanIndexVLAN[oidSplit[len(oidSplit)-2]] = device.VLAN{ | ||
| Status: &status, | ||
| } | ||
| } | ||
|
|
||
| // jnxExVlanName | ||
| res, err = con.SNMP.SnmpClient.SNMPWalk(ctx, "1.3.6.1.4.1.2636.3.40.1.5.1.5.1.2") | ||
| if err != nil { | ||
| log.Ctx(ctx).Trace().Err(err).Msg("failed to get jnxExVlanName, skipping VLANs") | ||
| return interfaces, nil | ||
| } | ||
|
|
||
| for _, response := range res { | ||
| name, err := response.GetValueString() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| oid := response.GetOID() | ||
| oidSplit := strings.Split(oid, ".") | ||
|
|
||
| if vlan, ok := vlanIndexVLAN[oidSplit[len(oidSplit)-1]]; ok { | ||
| vlan.Name = name | ||
| vlanIndexVLAN[oidSplit[len(oidSplit)-1]] = vlan | ||
| } | ||
| } | ||
|
|
||
| for i, interf := range interfaces { | ||
| if interf.IfIndex != nil { | ||
| if vlanIndices, ok := ifIndexVLANIndices[fmt.Sprint(*interf.IfIndex)]; ok { | ||
| for _, vlanIndex := range vlanIndices { | ||
| if vlan, ok := vlanIndexVLAN[vlanIndex]; ok { | ||
| if interfaces[i].VLAN == nil { | ||
| interfaces[i].VLAN = &device.VLANInformation{} | ||
| } | ||
| interfaces[i].VLAN.VLANs = append(interfaces[i].VLAN.VLANs, vlan) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return interfaces, nil | ||
| } |
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