[YANG][vlan-sub-interface] Add vlan field (#15838) (#16469)

* [YANG][vlan-sub-interface] Add `vlan` field



* Fix typo



* Fix UT



---------

Signed-off-by: Longxiang Lyu <[email protected]>
Co-authored-by: Longxiang Lyu <[email protected]>

Author: mssonicbld

src/sonic-yang-models/tests/files/sample_config_db.json

@@ -996,12 +996,14 @@
             "Ethernet12.10|10.0.1.56/31": {},
             "Ethernet12.10|fc00::1:71/126": {},
             "Po0003.10": {
-                "admin_status": "up"
+                "admin_status": "up",
+                "vlan": "10"
             },
             "Po0003.10|10.0.1.58/31": {},
             "Po0003.10|fc00::1:75/126": {},
             "Eth120.10": {
-                "admin_status": "up"
+                "admin_status": "up",
+                "vlan": "10"
             },
             "Eth120.10|10.0.1.60/31": {},
             "Eth120.10|fc00::1:79/126": {}

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

@@ -55,5 +55,9 @@
         "desc": "INCORRECT LOOPBACK ACTION IN VLAN_SUB_INTERFACE TABLE.",
         "eStrKey" : "Pattern",
         "eStr": ["drop|forward"]
+    },
+    "VLAN_SUB_INTERFACE_SHORT_NAME_FORMAT_VLAN_CHECK_MUST_CONDITION_FALSE_TEST": {
+        "desc": "Configure valid short name format vlan sub interface vlan must check condition false.",
+        "eStrKey": "Must"
     }
 }

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

@@ -36,7 +36,8 @@
             "sonic-vlan-sub-interface:VLAN_SUB_INTERFACE": {
                 "VLAN_SUB_INTERFACE_LIST": [
                     {
-                        "name": "Eth8.10"
+                        "name": "Eth8.10",
+                        "vlan": 10
                     }
                 ],
                 "VLAN_SUB_INTERFACE_IPPREFIX_LIST": [
@@ -132,7 +133,8 @@
             "sonic-vlan-sub-interface:VLAN_SUB_INTERFACE": {
                 "VLAN_SUB_INTERFACE_LIST": [
                     {
-                        "name": "Eth8.10"
+                        "name": "Eth8.10",
+                        "vlan": 10
                     }
                 ],
                 "VLAN_SUB_INTERFACE_IPPREFIX_LIST": [
@@ -164,7 +166,8 @@
             "sonic-vlan-sub-interface:VLAN_SUB_INTERFACE": {
                 "VLAN_SUB_INTERFACE_LIST": [
                     {
-                        "name": "Po0001.10"
+                        "name": "Po0001.10",
+                        "vlan": 10
                     }
                 ],
                 "VLAN_SUB_INTERFACE_IPPREFIX_LIST": [
@@ -305,7 +308,8 @@
             "sonic-vlan-sub-interface:VLAN_SUB_INTERFACE": {
                 "VLAN_SUB_INTERFACE_LIST": [
                     {
-                        "name": "Po0002.10"
+                        "name": "Po0002.10",
+                        "vlan": 10
                     }
                 ],
                 "VLAN_SUB_INTERFACE_IPPREFIX_LIST": [
@@ -533,5 +537,37 @@
                 ]
             }
         }
+    },
+    "VLAN_SUB_INTERFACE_SHORT_NAME_FORMAT_VLAN_CHECK_MUST_CONDITION_FALSE_TEST": {
+        "sonic-vlan-sub-interface:sonic-vlan-sub-interface": {
+            "sonic-vlan-sub-interface:VLAN_SUB_INTERFACE": {
+                "VLAN_SUB_INTERFACE_LIST": [
+                    {
+                        "name": "Eth8.10"
+                    }
+                ],
+                "VLAN_SUB_INTERFACE_IPPREFIX_LIST": [
+                    {
+                        "name": "Eth8.10",
+                        "ip-prefix": "10.0.0.1/30"
+                    }
+                ]
+            }
+        },
+        "sonic-port:sonic-port": {
+            "sonic-port:PORT": {
+                "PORT_LIST": [
+                    {
+                        "name": "Ethernet8",
+                        "admin_status": "up",
+                        "alias": "Ethernet8/1",
+                        "description": "Ethernet8",
+                        "lanes": "45,46,47,48",
+                        "mtu": 9000,
+                        "speed": 100000
+                    }
+                ]
+            }
+        }
     }
 }

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

@@ -37,6 +37,14 @@ module sonic-vlan-sub-interface {
 
                 description "VLAN_SUB_INTERFACE part of config_db.json with vrf";
 
+                // encap vlan is mandatory for short name subinterfaces
+                must "(substring-before(name, '.') = /port:sonic-port/port:PORT/port:PORT_LIST/port:name) or " +
+                     "(substring-before(name, '.') = /lag:sonic-portchannel/lag:PORTCHANNEL/lag:PORTCHANNEL_LIST/lag:name) or " +
+                     "vlan"
+                {
+                    error-message "Must condition not satisfied, no encap vlan provided for short-name format vlan sub interface";
+                }
+
                 key "name";
 
                 leaf name {
@@ -70,6 +78,12 @@ module sonic-vlan-sub-interface {
                     description "Packet action when a packet ingress and gets routed on the same IP interface";
                     type stypes:loopback_action;
                 }
+
+                leaf vlan {
+                    type uint16 {
+                        range 1..4094;
+                    }
+                }
             }
 
             list VLAN_SUB_INTERFACE_IPPREFIX_LIST {