Fix comments

Fix comments

Signed-off-by: Longxiang Lyu <lolv@microsoft.com>

Author: lolyu

src/sonic-yang-models/doc/Configuration.md

@@ -87,6 +87,7 @@
   * [XCVRD_LOG](#xcvrd_log)
   * [PASSWORD_HARDENING](#password_hardening)
   * [SSH_SERVER](#ssh_server)
+  * [SUBNET_DECAP](#subnet_decap)
   * [SYSTEM_DEFAULTS table](#systemdefaults-table)
   * [RADIUS](#radius)
   * [Static DNS](#static-dns)
@@ -95,6 +96,7 @@
   * [Incremental Configuration by Subscribing to ConfigDB](#incremental-configuration-by-subscribing-to-configdb)
 
 
+
 # Introduction
 This document lists the configuration commands schema applied in the SONiC eco system. All these commands find relevance in collecting system information, analysis and even for trouble shooting. All the commands are categorized under relevant topics with corresponding examples.
 
@@ -2809,6 +2811,20 @@ The method could be:
 }
 ```
 
+### SUBNET_DECAP
+
+The **SUBNET_DECAP** table is used for subnet decap configuration.
+
+```
+"SUBNET_DECAP": {
+    "AZURE": {
+        "status": "enable",
+        "src_ip": "10.10.10.0/24",
+        "src_ip_v6": "20c1:ba8::/64"
+    }
+}
+```
+
 ### SYSTEM_DEFAULTS table
 To have a better management of the features in SONiC, a new table `SYSTEM_DEFAULTS` is introduced.
 

src/sonic-yang-models/setup.py

@@ -167,6 +167,7 @@ def run(self):
                          './yang-models/sonic-system-tacacs.yang',
                          './yang-models/sonic-system-radius.yang',
                          './yang-models/sonic-system-ldap.yang',
+                         './yang-models/sonic-subnet-decap.yang',
                          './yang-models/sonic-telemetry.yang',
                          './yang-models/sonic-telemetry_client.yang',
                          './yang-models/sonic-gnmi.yang',

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

@@ -5,6 +5,13 @@
                     "vni" : "100"
                 }
         },
+        "SUBNET_DECAP": {
+            "AZURE": {
+                "status": "enable",
+                "src_ip": "10.10.10.0/24",
+                "src_ip_v6": "20c1:ba8::/64"
+            }
+        },
         "DHCP_SERVER": {
             "192.0.0.8": {},
             "192.0.0.8": {},
@@ -2765,13 +2772,6 @@
 		"log_verbosity": "notice"
 	    }
 	},
-    "SUBNET_DECAP": {
-        "AZURE": {
-            "status": "enable",
-            "src_ip": "10.10.10.0/24",
-            "src_ip_v6": "20c1:ba8::/64"
-        }
-    },
 	"GRPCCLIENT": {
             "config": {
                 "type": "secure",

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

@@ -10,7 +10,7 @@
     },
     "SUBNET_DECAP_INVALID_STATUS_TEST": {
         "desc": "Configure SUBNET_DECAP table with invalid status.",
-        "eStrKey": "Pattern"
+        "eStrKey": "InvalidValue"
     },
     "SUBNET_DECAP_INVALID_IPV4": {
         "desc": "Configure SUBNET_DECAP table with invalid src ipv4 prefix.",
@@ -19,5 +19,13 @@
     "SUBNET_DECAP_INVALID_IPV6": {
         "desc": "Configure SUBNET_DECAP table with invalid src ipv6 prefix.",
         "eStrKey": "Pattern"
+    },
+    "SUBNET_DECAP_NO_IPV4": {
+        "desc": "Configure SUBNET_DECAP table without src ipv4 prefix.",
+        "eStrKey": "Mandatory"
+    },
+    "SUBNET_DECAP_NO_IPV6": {
+        "desc": "Configure SUBNET_DECAP table without src ipv6 prefix.",
+        "eStrKey": "Mandatory"
     }
 }

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

@@ -81,5 +81,31 @@
                 ]
             }
         }
+    },
+    "SUBNET_DECAP_NO_IPV4": {
+        "sonic-subnet-decap:sonic-subnet-decap": {
+            "sonic-subnet-decap:SUBNET_DECAP": {
+                "SUBNET_DECAP_LIST": [
+                    {
+                        "name": "AZURE",
+                        "status": "enable",
+                        "src_ip_v6": "20c1:ba8::/64"
+                    }
+                ]
+            }
+        }
+    },
+    "SUBNET_DECAP_NO_IPV6": {
+        "sonic-subnet-decap:sonic-subnet-decap": {
+            "sonic-subnet-decap:SUBNET_DECAP": {
+                "SUBNET_DECAP_LIST": [
+                    {
+                        "name": "AZURE",
+                        "status": "enable",
+                        "src_ip": "10.10.10.0/24"
+                    }
+                ]
+            }
+        }
     }
 }

src/sonic-yang-models/yang-models/sonic-subnet-decap.yang

@@ -10,6 +10,10 @@ module sonic-subnet-decap {
         prefix inet;
     }
 
+    import sonic-types {
+        prefix stypes;
+    }
+
     description "Subnet decap configuration for SONiC OS.";
 
     revision 2024-12-19 {
@@ -31,21 +35,21 @@ module sonic-subnet-decap {
                 }
 
                 leaf status {
-					type string {
-						pattern "enable|disable";
-					}
-                    default "disable";
+                    type stypes:mode-status;
+                    default disable;
                     description "Subnet Decap status.";
                 }
 
                 leaf src_ip {
                     type inet:ipv4-prefix;
                     description "Subnet decap term source IPv4 prefix.";
+                    mandatory true;
                 }
 
                 leaf src_ip_v6 {
                     type inet:ipv6-prefix;
                     description "Subnet decap term source IPv6 prefix.";
+                    mandatory true;
                 }
             }
         }