[yang]: Add yang models for BGP_PEER_RANGE table (#10082)

Why I did it
end2end test is blocked by Yang model for BGP_PEER_RANGE.

How I did it
Add new yang models.

How to verify it
Run UT for sonc-yang-models.

Signed-off-by: Gang Lv ganglv@microsoft.com

src/sonic-yang-models/setup.py

@@ -84,6 +84,7 @@ setup(
                          './yang-models/sonic-bgp-monitor.yang',
                          './yang-models/sonic-bgp-neighbor.yang',
                          './yang-models/sonic-bgp-peergroup.yang',
+                         './yang-models/sonic-bgp-peerrange.yang',
                          './yang-models/sonic-breakout_cfg.yang',
                          './yang-models/sonic-buffer-pg.yang',
                          './yang-models/sonic-buffer-pool.yang',
@@ -150,6 +151,7 @@ setup(
                          './cvlyang-models/sonic-bgp-monitor.yang',
                          './cvlyang-models/sonic-bgp-neighbor.yang',
                          './cvlyang-models/sonic-bgp-peergroup.yang',
+                         './cvlyang-models/sonic-bgp-peerrange.yang',
                          './cvlyang-models/sonic-breakout_cfg.yang',
                          './cvlyang-models/sonic-copp.yang',
                          './cvlyang-models/sonic-crm.yang',

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

@@ -1147,6 +1147,24 @@
             "default|ipv4_unicast|21.0.0.0/8": {
             }
         },
+        "BGP_PEER_RANGE": {
+            "BGPSLBPassive": {
+                "ip_range": [
+                    "10.255.0.0/25"
+                ],
+                "name": "BGPSLBPassive",
+                "src_address": "10.1.0.32"
+            },
+            "BGPVac": {
+                "ip_range": [
+                    "192.168.0.0/21",
+                    "192.169.0.0/21",
+                    "192.170.0.0/21"
+                ],
+                "name": "BGPVac",
+                "src_address": "10.1.0.32"
+            }
+        },
         "BGP_MONITORS": {
             "5.6.7.8": {
                 "admin_status": "up",

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

@@ -154,6 +154,9 @@
     "BGP_MONITORS_NEG_INVALID_ASN": {
         "desc": "Invalid local AS number.",
         "eStrKey" : "InvalidValue"
+    },
+    "BGP_PEERRANGE_ALL_VALID": {
+        "desc": "Configure BGP peer range table."
     }
 
 }

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

@@ -1402,6 +1402,24 @@
                 ]
             }
         }
+    },
+
+    "BGP_PEERRANGE_ALL_VALID": {
+        "sonic-bgp-peerrange:sonic-bgp-peerrange": {
+            "sonic-bgp-peerrange:BGP_PEER_RANGE": {
+                "BGP_PEER_RANGE_LIST": [
+                    {
+                        "peer_range_name": "BGPSLBPassive",
+                        "name": "BGPSLBPassive",
+                        "src_address": "10.1.0.32",
+                        "peer_asn": "65200",
+                        "ip_range": [
+                            "10.255.0.0/25"
+                        ]
+                    }
+                ]
+            }
+        }
     }
 }
 

src/sonic-yang-models/yang-models/sonic-bgp-peerrange.yang

@@ -0,0 +1,64 @@
+module sonic-bgp-peerrange {
+    namespace "http://github.com/Azure/sonic-bgp-peerrange";
+    prefix pr;
+    yang-version 1.1;
+
+    import ietf-inet-types {
+        prefix inet;
+    }
+
+    import sonic-types {
+        prefix stypes;
+    }
+
+    organization
+        "SONiC";
+
+    contact
+        "SONiC";
+
+    description
+        "SONIC BGP Peer Range YANG";
+
+    revision 2022-02-24 {
+        description
+            "Initial revision.";
+    }
+
+    container sonic-bgp-peerrange {
+        container BGP_PEER_RANGE {
+            list BGP_PEER_RANGE_LIST {
+                key "peer_range_name";
+
+                leaf peer_range_name {
+                    type string;
+                    description "Peer range name";
+                }
+
+                leaf name {
+                    type string;
+                    must "(current() = current()/../peer_range_name)" {
+                        error-message "Invalid name";
+                    }
+                }
+
+                leaf src_address {
+                    type inet:ip-address;
+                    description "Source address to use for connection";
+                }
+
+                leaf peer_asn {
+                    type uint32 {
+                        range "1..4294967295";
+                    }
+                    description "Peer AS number";
+                }
+
+                leaf-list ip_range {
+                    type stypes:sonic-ip-prefix;
+                    description "A range of addresses";
+                }
+            }
+        }
+    }
+}