[YANG] Add yang model to SUBNET_DECAP table

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

Author: lolyu

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

@@ -2765,6 +2765,13 @@
 		"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

@@ -0,0 +1,23 @@
+{
+    "SUBNET_DECAP_DEFAULT_TEST": {
+        "desc": "Configure SUBNET_DECAP table."
+    },
+    "SUBNET_DECAP_ENABLE_TEST": {
+        "desc": "Configure SUBNET_DECAP table with status as enable."
+    },
+    "SUBNET_DECAP_DISABLE_TEST": {
+        "desc": "Configure SUBNET_DECAP table with status as disable."
+    },
+    "SUBNET_DECAP_INVALID_STATUS_TEST": {
+        "desc": "Configure SUBNET_DECAP table with invalid status.",
+        "eStrKey": "Pattern"
+    },
+    "SUBNET_DECAP_INVALID_IPV4": {
+        "desc": "Configure SUBNET_DECAP table with invalid src ipv4 prefix.",
+        "eStrKey": "Pattern"
+    },
+    "SUBNET_DECAP_INVALID_IPV6": {
+        "desc": "Configure SUBNET_DECAP table with invalid src ipv6 prefix.",
+        "eStrKey": "Pattern"
+    }
+}

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

@@ -0,0 +1,85 @@
+{
+    "SUBNET_DECAP_DEFAULT_TEST": {
+        "sonic-subnet-decap:sonic-subnet-decap": {
+            "sonic-subnet-decap:SUBNET_DECAP": {
+                "SUBNET_DECAP_LIST": [
+                    {
+                        "name": "AZURE",
+                        "src_ip": "10.10.10.0/24",
+                        "src_ip_v6": "20c1:ba8::/64"
+                    }
+                ]
+            }
+        }
+    },
+    "SUBNET_DECAP_ENABLE_TEST": {
+        "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_ip_v6": "20c1:ba8::/64"
+                    }
+                ]
+            }
+        }
+    },
+    "SUBNET_DECAP_DISABLE_TEST": {
+        "sonic-subnet-decap:sonic-subnet-decap": {
+            "sonic-subnet-decap:SUBNET_DECAP": {
+                "SUBNET_DECAP_LIST": [
+                    {
+                        "name": "AZURE",
+                        "status": "disable",
+                        "src_ip": "10.10.10.0/24",
+                        "src_ip_v6": "20c1:ba8::/64"
+                    }
+                ]
+            }
+        }
+    },
+    "SUBNET_DECAP_INVALID_STATUS_TEST": {
+        "sonic-subnet-decap:sonic-subnet-decap": {
+            "sonic-subnet-decap:SUBNET_DECAP": {
+                "SUBNET_DECAP_LIST": [
+                    {
+                        "name": "AZURE",
+                        "status": "enabled",
+                        "src_ip": "10.10.10.0/24",
+                        "src_ip_v6": "20c1:ba8::/64"
+                    }
+                ]
+            }
+        }
+    },
+    "SUBNET_DECAP_INVALID_IPV4": {
+        "sonic-subnet-decap:sonic-subnet-decap": {
+            "sonic-subnet-decap:SUBNET_DECAP": {
+                "SUBNET_DECAP_LIST": [
+                    {
+                        "name": "AZURE",
+                        "status": "enable",
+                        "src_ip": "10.10.10.01111/24",
+                        "src_ip_v6": "20c1:ba8::/64"
+                    }
+                ]
+            }
+        }
+    },
+    "SUBNET_DECAP_INVALID_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_ip_v6": "20c1:ba8::01111/64"
+                    }
+                ]
+            }
+        }
+    }
+}

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

@@ -0,0 +1,53 @@
+module sonic-subnet-decap {
+
+    yang-version 1.1;
+
+    namespace  "http://github.com/sonic-net/sonic-subnet-decap";
+
+    prefix subnet-decap;
+
+    import ietf-inet-types {
+        prefix inet;
+    }
+
+    description "Subnet decap configuration for SONiC OS.";
+
+    revision 2024-12-19 {
+        description "Initial version";
+    }
+
+    container sonic-subnet-decap {
+        container SUBNET_DECAP {
+
+            description "CONFIG_DB subnet decap configuration.";
+
+            list SUBNET_DECAP_LIST {
+
+                key "name";
+
+                leaf name {
+                    type string;
+                    description "Subnet Decap config name.";
+                }
+
+                leaf status {
+					type string {
+						pattern "enable|disable";
+					}
+                    default "disable";
+                    description "Subnet Decap status.";
+                }
+
+                leaf src_ip {
+                    type inet:ipv4-prefix;
+                    description "Subnet decap term source IPv4 prefix.";
+                }
+
+                leaf src_ip_v6 {
+                    type inet:ipv6-prefix;
+                    description "Subnet decap term source IPv6 prefix.";
+                }
+            }
+        }
+    }
+}