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feat: report bgp states of connected neighbors #136
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| package frr | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
| "time" | ||
|
|
||
| "github.com/metal-stack/metal-go/api/models" | ||
| ) | ||
|
|
||
| type Vrf struct { | ||
| VrfID int | ||
| VrfName string | ||
| Ports Ports | ||
| } | ||
|
|
||
| type Port struct { | ||
| Hostname string `json:"hostname"` | ||
| PeerGroup string `json:"peerGroup"` | ||
| BgpState string `json:"bgpState"` | ||
| BgpTimerUpEstablished int64 `json:"bgpTimerUpEstablishedEpoch"` | ||
|
|
||
| AddressFamilyInfo struct { | ||
| IPv4UnicastCumulus struct { | ||
| SentPrefixCounter int64 `json:"sentPrefixCounter"` | ||
| AcceptedPrefixCounter int64 `json:"acceptedPrefixCounter"` | ||
| } `json:"IPv4 Unicast"` | ||
| IPv6UnicastCumulus struct { | ||
| SentPrefixCounter int64 `json:"sentPrefixCounter"` | ||
| AcceptedPrefixCounter int64 `json:"acceptedPrefixCounter"` | ||
| } `json:"IPv6 Unicast"` | ||
| IPv4UnicastSonic struct { | ||
| SentPrefixCounter int64 `json:"sentPrefixCounter"` | ||
| AcceptedPrefixCounter int64 `json:"acceptedPrefixCounter"` | ||
| } `json:"ipv4Unicast"` | ||
| IPv6UnicastSonic struct { | ||
| SentPrefixCounter int64 `json:"sentPrefixCounter"` | ||
| AcceptedPrefixCounter int64 `json:"acceptedPrefixCounter"` | ||
| } `json:"ipv6Unicast"` | ||
| } `json:"addressFamilyInfo"` | ||
| } | ||
|
|
||
| type Vrfs map[string]Vrf | ||
| type Ports map[string]Port | ||
|
|
||
| func GetBGPStates(filepath string) (map[string]models.V1SwitchBGPPortState, error) { | ||
|
|
||
| fileInfo, err := os.Stat(filepath) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("error getting file info for %s: %w", filepath, err) | ||
| } | ||
|
|
||
| if time.Since(fileInfo.ModTime()) > time.Hour { | ||
| return nil, fmt.Errorf("file %s is too old", filepath) | ||
| } | ||
|
|
||
| file, err := os.Open(filepath) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("error opening frr bgp state json file %s: %w", filepath, err) | ||
| } | ||
| defer file.Close() | ||
|
|
||
| byteValue, err := io.ReadAll(file) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("error reading frr bgp state json file %s: %w", filepath, err) | ||
| } | ||
|
|
||
| var tempData map[string]map[string]json.RawMessage | ||
| if err := json.Unmarshal(byteValue, &tempData); err != nil { | ||
| return nil, fmt.Errorf("error unmarshalling bgp vrf all neigh output: %w", err) | ||
| } | ||
|
|
||
| bgpstates := make(map[string]models.V1SwitchBGPPortState) | ||
| for _, vrfData := range tempData { | ||
|
|
||
| var VrfName string | ||
| if err := json.Unmarshal(vrfData["vrfName"], &VrfName); err != nil { | ||
| return nil, fmt.Errorf("error parsing vrfName: %w", err) | ||
| } | ||
|
|
||
| for key, value := range vrfData { | ||
| if key == "vrfId" || key == "vrfName" { | ||
| continue | ||
| } | ||
| var port Port | ||
| if err := json.Unmarshal(value, &port); err != nil { | ||
| return nil, fmt.Errorf("error parsing port info for %s: %w", key, err) | ||
| } | ||
| bgptimerup := port.BgpTimerUpEstablished | ||
| sentPrefixCounter := port.AddressFamilyInfo.IPv4UnicastCumulus.SentPrefixCounter + | ||
| port.AddressFamilyInfo.IPv6UnicastCumulus.SentPrefixCounter + | ||
| port.AddressFamilyInfo.IPv4UnicastSonic.SentPrefixCounter + | ||
| port.AddressFamilyInfo.IPv6UnicastSonic.SentPrefixCounter | ||
|
|
||
| acceptedPrefixCounter := port.AddressFamilyInfo.IPv4UnicastCumulus.AcceptedPrefixCounter + | ||
| port.AddressFamilyInfo.IPv6UnicastCumulus.AcceptedPrefixCounter + | ||
| port.AddressFamilyInfo.IPv4UnicastSonic.AcceptedPrefixCounter + | ||
| port.AddressFamilyInfo.IPv6UnicastSonic.AcceptedPrefixCounter | ||
|
|
||
| bgpstates[key] = models.V1SwitchBGPPortState{ | ||
| Neighbor: &port.Hostname, | ||
| PeerGroup: &port.PeerGroup, | ||
| BgpState: &port.BgpState, | ||
| BgpTimerUpEstablished: &bgptimerup, | ||
| VrfName: &VrfName, | ||
| SentPrefixCounter: &sentPrefixCounter, | ||
| AcceptedPrefixCounter: &acceptedPrefixCounter, | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return bgpstates, nil | ||
| } | ||
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Could you please add a test for parsing the JSON output from FRR?