diff --git a/Tun/Punchnet/Policy/IdentityRuleMap.swift b/Tun/Punchnet/Policy/PolicyRuleMap.swift
similarity index 91%
rename from Tun/Punchnet/Policy/IdentityRuleMap.swift
rename to Tun/Punchnet/Policy/PolicyRuleMap.swift
index a4224bb..0c3c99e 100644
--- a/Tun/Punchnet/Policy/IdentityRuleMap.swift
+++ b/Tun/Punchnet/Policy/PolicyRuleMap.swift
@@ -1,11 +1,11 @@
 //
-//  RuleMap.swift
+//  PolicyRuleMap.swift
 //  punchnet
 //
 //  Created by 安礼成 on 2026/2/5.
 //
 
-struct IdentityRuleMap {
+struct PolicyRuleMap {
     let version: UInt32
     // map[proto][port]
     let ruleMap: [UInt8: [UInt16: Bool]]
diff --git a/Tun/Punchnet/Policy/PolicyRuleSnapshot.swift b/Tun/Punchnet/Policy/PolicyRuleSnapshot.swift
index 22fc0b2..610859c 100644
--- a/Tun/Punchnet/Policy/PolicyRuleSnapshot.swift
+++ b/Tun/Punchnet/Policy/PolicyRuleSnapshot.swift
@@ -9,13 +9,13 @@ import Foundation
 final class PolicyRuleSnapshot: Snapshot {
     typealias IdentityID = UInt32
     
-    private let ruleMapByIdentity: [IdentityID: IdentityRuleMap]
+    private let ruleMapByIdentity: [IdentityID: PolicyRuleMap]
     
-    init(ruleMapByIdentity: [IdentityID : IdentityRuleMap]) {
+    init(ruleMapByIdentity: [IdentityID : PolicyRuleMap]) {
         self.ruleMapByIdentity = ruleMapByIdentity
     }
     
-    func lookup(_ id: IdentityID) -> IdentityRuleMap? {
+    func lookup(_ id: IdentityID) -> PolicyRuleMap? {
         return self.ruleMapByIdentity[id]
     }
     
diff --git a/Tun/Punchnet/Policy/PolicyRuleStore.swift b/Tun/Punchnet/Policy/PolicyRuleStore.swift
index 493d65a..f96d245 100644
--- a/Tun/Punchnet/Policy/PolicyRuleStore.swift
+++ b/Tun/Punchnet/Policy/PolicyRuleStore.swift
@@ -19,7 +19,7 @@ actor PolicyRuleStore {
     nonisolated private let alloctor = ByteBufferAllocator()
     
     private let publisher: SnapshotPublisher<PolicyRuleSnapshot>
-    private var ruleMapByIdentity: [UInt32: IdentityRuleMap] = [:]
+    private var ruleMapByIdentity: [UInt32: PolicyRuleMap] = [:]
     
     init(publisher: SnapshotPublisher<PolicyRuleSnapshot>) {
         self.publisher = publisher
@@ -74,7 +74,7 @@ actor PolicyRuleStore {
             }
             ruleMap[proto, default: [:]][port] = true
         }
-        self.ruleMapByIdentity[id] = IdentityRuleMap(version: version, ruleMap: ruleMap)
+        self.ruleMapByIdentity[id] = PolicyRuleMap(version: version, ruleMap: ruleMap)
         
         // 发布新的快照信息
         let snapshot = compileSnapshot()