YANG sonic-interface: add missing mac_addr leaf

mac_addr support was added in the INTERFACES table by
sonic-net/sonic-swss#814 in 2020
but the YANG models were never updated to reflect that change.

Signed-off-by: Brad House (@bradh352)

Author: bradh352

src/sonic-yang-models/tests/yang_model_tests/tests/interface.json

@@ -29,5 +29,12 @@
     "INTERFACE_INVALID_ENABLE_IPV6_LINK_LOCAL": {
         "desc": "Enable the ipv6 link-local as true.",
         "eStr": "Invalid value \"true\" in \"ipv6_use_link_local_only\" element."
+    },
+    "INTERFACE_MAC_ADDR": {
+        "desc": "Set administrator-provided interface mac address."
+    },
+    "INTERFACE_INVALID_MAC_ADDR": {
+        "desc": "Set invalid interface mac address.",
+        "eStr": "Invalid value \"badaddr\" in \"mac_addr\" element."
     }
 }

src/sonic-yang-models/tests/yang_model_tests/tests_config/interface.json

@@ -274,5 +274,63 @@
                 ]
             }
         }
+    },
+    "INTERFACE_MAC_ADDR": {
+        "sonic-interface:sonic-interface": {
+            "sonic-interface:INTERFACE": {
+                "INTERFACE_LIST": [
+                    {
+                        "name": "Ethernet8",
+                        "mac_addr": "02:26:9b:73:c1:1a"
+                    }
+                ]
+            }
+        },
+        "sonic-port:sonic-port": {
+            "sonic-port:PORT": {
+                "PORT_LIST": [
+                    {
+                        "admin_status": "up",
+                        "alias": "eth8",
+                        "description": "Ethernet8",
+                        "fec": "rs",
+                        "lanes": "65",
+                        "mtu": 9000,
+                        "name": "Ethernet8",
+                        "speed": 25000,
+                        "mode":"trunk"
+                    }
+                ]
+            }
+        }
+    },
+    "INTERFACE_INVALID_MAC_ADDR": {
+        "sonic-interface:sonic-interface": {
+            "sonic-interface:INTERFACE": {
+                "INTERFACE_LIST": [
+                    {
+                        "name": "Ethernet8",
+                        "mac_addr": "badaddr"
+                    }
+                ]
+            }
+        },
+        "sonic-port:sonic-port": {
+            "sonic-port:PORT": {
+                "PORT_LIST": [
+                    {
+                        "admin_status": "up",
+                        "alias": "eth8",
+                        "description": "Ethernet8",
+                        "fec": "rs",
+                        "lanes": "65",
+                        "mtu": 9000,
+                        "name": "Ethernet8",
+                        "speed": 25000,
+                        "mode":"trunk"
+                    }
+                ]
+            }
+        }
     }
 }

src/sonic-yang-models/yang-models/sonic-interface.yang

@@ -5,6 +5,10 @@ module sonic-interface {
 	namespace "http://github.com/sonic-net/sonic-interface";
 	prefix intf;
 
+	import ietf-yang-types {
+		prefix yang;
+	}
+
 	import sonic-types {
 		prefix stypes;
 	}
@@ -81,6 +85,11 @@ module sonic-interface {
 					default disable;
 				}
 
+				leaf mac_addr {
+					description "Assign Administrator-provided MAC address to Interface";
+					type yang:mac-address;
+				}
+
                 leaf loopback_action {
                     description "Packet action when a packet ingress and gets routed on the same IP interface";
                     type stypes:loopback_action;