feat: add new NAT fields to Network Management API definition

PiperOrigin-RevId: 613999902

google/cloud/networkmanagement/v1/trace.proto

@@ -245,6 +245,9 @@ message Step {
     // Display information of a Cloud Run revision.
     CloudRunRevisionInfo cloud_run_revision = 23;
 
+    // Display information of a NAT.
+    NatInfo nat = 25;
+
     // Display information of a ProxyConnection.
     ProxyConnectionInfo proxy_connection = 26;
 
@@ -1218,6 +1221,64 @@ message VpcConnectorInfo {
   string location = 3;
 }
 
+// For display only. Metadata associated with NAT.
+message NatInfo {
+  // Types of NAT.
+  enum Type {
+    // Type is unspecified.
+    TYPE_UNSPECIFIED = 0;
+    // From Compute Engine instance's internal address to external address.
+    INTERNAL_TO_EXTERNAL = 1;
+    // From Compute Engine instance's external address to internal address.
+    EXTERNAL_TO_INTERNAL = 2;
+    // Cloud NAT Gateway.
+    CLOUD_NAT = 3;
+    // Private service connect NAT.
+    PRIVATE_SERVICE_CONNECT = 4;
+  }
+
+  // Type of NAT.
+  Type type = 1;
+
+  // IP protocol in string format, for example: "TCP", "UDP", "ICMP".
+  string protocol = 2;
+
+  // URI of the network where NAT translation takes place.
+  string network_uri = 3;
+
+  // Source IP address before NAT translation.
+  string old_source_ip = 4;
+
+  // Source IP address after NAT translation.
+  string new_source_ip = 5;
+
+  // Destination IP address before NAT translation.
+  string old_destination_ip = 6;
+
+  // Destination IP address after NAT translation.
+  string new_destination_ip = 7;
+
+  // Source port before NAT translation. Only valid when protocol is TCP or UDP.
+  int32 old_source_port = 8;
+
+  // Source port after NAT translation. Only valid when protocol is TCP or UDP.
+  int32 new_source_port = 9;
+
+  // Destination port before NAT translation. Only valid when protocol is TCP or
+  // UDP.
+  int32 old_destination_port = 10;
+
+  // Destination port after NAT translation. Only valid when protocol is TCP or
+  // UDP.
+  int32 new_destination_port = 11;
+
+  // Uri of the Cloud Router. Only valid when type is CLOUD_NAT.
+  string router_uri = 12;
+
+  // The name of Cloud NAT Gateway. Only valid when type is CLOUD_NAT.
+  string nat_gateway_name = 13;
+}
+
 // For display only. Metadata associated with ProxyConnection.
 message ProxyConnectionInfo {
   // IP protocol in string format, for example: "TCP", "UDP", "ICMP".

google/cloud/networkmanagement/v1beta1/trace.proto

@@ -245,6 +245,9 @@ message Step {
     // Display information of a Cloud Run revision.
     CloudRunRevisionInfo cloud_run_revision = 23;
 
+    // Display information of a NAT.
+    NatInfo nat = 25;
+
     // Display information of a ProxyConnection.
     ProxyConnectionInfo proxy_connection = 26;
 
@@ -1218,6 +1221,64 @@ message VpcConnectorInfo {
   string location = 3;
 }
 
+// For display only. Metadata associated with NAT.
+message NatInfo {
+  // Types of NAT.
+  enum Type {
+    // Type is unspecified.
+    TYPE_UNSPECIFIED = 0;
+    // From Compute Engine instance's internal address to external address.
+    INTERNAL_TO_EXTERNAL = 1;
+    // From Compute Engine instance's external address to internal address.
+    EXTERNAL_TO_INTERNAL = 2;
+    // Cloud NAT Gateway.
+    CLOUD_NAT = 3;
+    // Private service connect NAT.
+    PRIVATE_SERVICE_CONNECT = 4;
+  }
+
+  // Type of NAT.
+  Type type = 1;
+
+  // IP protocol in string format, for example: "TCP", "UDP", "ICMP".
+  string protocol = 2;
+
+  // URI of the network where NAT translation takes place.
+  string network_uri = 3;
+
+  // Source IP address before NAT translation.
+  string old_source_ip = 4;
+
+  // Source IP address after NAT translation.
+  string new_source_ip = 5;
+
+  // Destination IP address before NAT translation.
+  string old_destination_ip = 6;
+
+  // Destination IP address after NAT translation.
+  string new_destination_ip = 7;
+
+  // Source port before NAT translation. Only valid when protocol is TCP or UDP.
+  int32 old_source_port = 8;
+
+  // Source port after NAT translation. Only valid when protocol is TCP or UDP.
+  int32 new_source_port = 9;
+
+  // Destination port before NAT translation. Only valid when protocol is TCP or
+  // UDP.
+  int32 old_destination_port = 10;
+
+  // Destination port after NAT translation. Only valid when protocol is TCP or
+  // UDP.
+  int32 new_destination_port = 11;
+
+  // Uri of the Cloud Router. Only valid when type is CLOUD_NAT.
+  string router_uri = 12;
+
+  // The name of Cloud NAT Gateway. Only valid when type is CLOUD_NAT.
+  string nat_gateway_name = 13;
+}
+
 // For display only. Metadata associated with ProxyConnection.
 message ProxyConnectionInfo {
   // IP protocol in string format, for example: "TCP", "UDP", "ICMP".