zebra: refactoring and fix bug and add processing messageBackupNexthop (added in frr7.4)

- Move function for checking softwareName from internal/pkg/config/default.go to internal/pkg/zebra/zapi.go.
- Delete support for frr7.1.
- Fix bug by inverse processing MessageMTU and messageTag, and add messageTableId in decodeFromBytes and serialize of IPRouteBody.
- Add processing messageBackupNexthop (which is added in frr7.4) in decodeFromBytes and serialize of IPRouteBody.
- Update document.

1 files changed, 1 insertions, 10 deletions

diff --git a/internal/pkg/config/default.go b/internal/pkg/config/default.go
index 7727bf78..3d723cd9 100644
--- a/internal/pkg/config/default.go
+++ b/internal/pkg/config/default.go
@@ -421,16 +421,7 @@ func setDefaultConfigValuesWithViper(v *viper.Viper, b *BgpConfigSet) error {
 		b.Zebra.Config.NexthopTriggerDelay = 5
 	}
 
-	//SoftwareName for Zebra
-	allowableZebraSoftwareName := []string{"", "quagga", "frr3", "frr4", "frr5", "frr6", "frr7", "frr7.1", "frr7.2", "frr7.3", "cumulus"}
-	isAllowable := false
-	for _, allowable := range allowableZebraSoftwareName {
-		if b.Zebra.Config.SoftwareName == allowable {
-			isAllowable = true
-			break
-		}
-	}
-	if !isAllowable {
+	if !zebra.IsAllowableSoftwareName(b.Zebra.Config.Version, b.Zebra.Config.SoftwareName) {
 		b.Zebra.Config.SoftwareName = ""
 	}