Add dhcp Opt 124(vivc) parsing to ztp (#425)

* Add dhcp Opt 124(vivc) parsing to ztp

Signed-off-by: Hariharakumar Narasimhakumar <hhkumar@fb.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/iana/entid.go b/iana/entid.go
new file mode 100644
index 0000000..df2ca13
--- /dev/null
+++ b/iana/entid.go
@@ -0,0 +1,21 @@
+package iana
+
+// EntID represents the Enterprise IDs as set by IANA
+type EntID int
+
+// See https://www.iana.org/assignments/enterprise-numbers/enterprise-numbers for values
+const (
+	EntIDCiscoSystems EntID = 9
+)
+
+var entIDToStringMap = map[EntID]string{
+	EntIDCiscoSystems: "Cisco Systems",
+}
+
+// String returns the vendor name for a given Enterprise ID
+func (e EntID) String() string {
+	if vendor := entIDToStringMap[e]; vendor != "" {
+		return vendor
+	}
+	return "Unknown"
+}