From ff87935d4aa563ad3443e9ad8a45200a963a874f Mon Sep 17 00:00:00 2001
From: Lucas Ritzdorf <42657792+LRitzdorf@users.noreply.github.com>
Date: Fri, 19 Jul 2024 16:14:36 -0600
Subject: [PATCH] smdclient: implement xname lookup from IP address

---
 internal/smdclient/SMDclient.go | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/internal/smdclient/SMDclient.go b/internal/smdclient/SMDclient.go
index 33ae839..db5bf04 100644
--- a/internal/smdclient/SMDclient.go
+++ b/internal/smdclient/SMDclient.go
@@ -105,6 +105,22 @@ func (s *SMDClient) IDfromMAC(mac string) (string, error) {
 	return "", errors.New("MAC " + mac + " not found for an xname in EthernetInterfaces")
 }
 
+// IDfromMAC returns the ID of the xname that has the MAC address
+func (s *SMDClient) IDfromIP(ipaddr string) (string, error) {
+	endpointData := new(CompEthInterfaceV2Array)
+	ep := "/hsm/v2/Inventory/EthernetInterfaces/"
+	s.getSMD(ep, endpointData)
+
+	for _, ep := range endpointData.Array {
+		for _, v := range ep.IPAddrs {
+			if strings.EqualFold(ipaddr, v.IPAddr) {
+				return ep.CompID, nil
+			}
+		}
+	}
+	return "", errors.New("IP address " + ipaddr + " not found for an xname in EthernetInterfaces")
+}
+
 // GroupMembership returns the group labels for the xname with the given ID
 func (s *SMDClient) GroupMembership(id string) ([]string, error) {
 	ml := new(sm.Membership)