diff --git a/Tun/Punchnet/Policy/IdentitySnapshot.swift b/Tun/Punchnet/Policy/IdentitySnapshot.swift
deleted file mode 100644
index e39735b..0000000
--- a/Tun/Punchnet/Policy/IdentitySnapshot.swift
+++ /dev/null
@@ -1,26 +0,0 @@
-//
-//  IdentitySnapshot.swift
-//  punchnet
-//
-//  Created by 安礼成 on 2026/2/5.
-//
-import Foundation
-
-final class IdentitySnapshot: Snapshot {
-    typealias IdentityID = UInt32
-    
-    private let identityMap: [IdentityID: IdentityRuleMap]
-    
-    init(identityMap: [IdentityID : IdentityRuleMap]) {
-        self.identityMap = identityMap
-    }
-    
-    func lookup(_ id: IdentityID) -> IdentityRuleMap? {
-        return self.identityMap[id]
-    }
-    
-    static func empty() -> IdentitySnapshot {
-        return IdentitySnapshot(identityMap: [:])
-    }
-    
-}
diff --git a/Tun/Punchnet/Policy/PolicyRuleSnapshot.swift b/Tun/Punchnet/Policy/PolicyRuleSnapshot.swift
new file mode 100644
index 0000000..22fc0b2
--- /dev/null
+++ b/Tun/Punchnet/Policy/PolicyRuleSnapshot.swift
@@ -0,0 +1,26 @@
+//
+//  PolicyRuleSnapshot.swift
+//  punchnet
+//
+//  Created by 安礼成 on 2026/2/5.
+//
+import Foundation
+
+final class PolicyRuleSnapshot: Snapshot {
+    typealias IdentityID = UInt32
+    
+    private let ruleMapByIdentity: [IdentityID: IdentityRuleMap]
+    
+    init(ruleMapByIdentity: [IdentityID : IdentityRuleMap]) {
+        self.ruleMapByIdentity = ruleMapByIdentity
+    }
+    
+    func lookup(_ id: IdentityID) -> IdentityRuleMap? {
+        return self.ruleMapByIdentity[id]
+    }
+    
+    static func empty() -> PolicyRuleSnapshot {
+        return PolicyRuleSnapshot(ruleMapByIdentity: [:])
+    }
+    
+}
diff --git a/Tun/Punchnet/Policy/PolicyRuleStore.swift b/Tun/Punchnet/Policy/PolicyRuleStore.swift
index a0a09f4..493d65a 100644
--- a/Tun/Punchnet/Policy/PolicyRuleStore.swift
+++ b/Tun/Punchnet/Policy/PolicyRuleStore.swift
@@ -18,15 +18,15 @@ actor PolicyRuleStore {
     
     nonisolated private let alloctor = ByteBufferAllocator()
     
-    private let publisher: SnapshotPublisher<IdentitySnapshot>
-    private var identityMap: [UInt32: IdentityRuleMap] = [:]
+    private let publisher: SnapshotPublisher<PolicyRuleSnapshot>
+    private var ruleMapByIdentity: [UInt32: IdentityRuleMap] = [:]
     
-    init(publisher: SnapshotPublisher<IdentitySnapshot>) {
+    init(publisher: SnapshotPublisher<PolicyRuleSnapshot>) {
         self.publisher = publisher
     }
 
     func makeBatchPolicyRequests(dstIdentityID: UInt32) -> [Data] {
-        return self.identityMap.keys.compactMap { identityId in
+        return self.ruleMapByIdentity.keys.compactMap { identityId in
             var policyRequest = SDLPolicyRequest()
             policyRequest.srcIdentityID = identityId
             policyRequest.dstIdentityID = dstIdentityID
@@ -60,7 +60,7 @@ actor PolicyRuleStore {
         let id = policyResponse.srcIdentityID
         let version = policyResponse.version
         
-        guard self.identityMap[id] == nil || ((self.identityMap[id]?.version ?? 0) < version) else {
+        guard self.ruleMapByIdentity[id] == nil || ((self.ruleMapByIdentity[id]?.version ?? 0) < version) else {
             return
         }
         
@@ -74,7 +74,7 @@ actor PolicyRuleStore {
             }
             ruleMap[proto, default: [:]][port] = true
         }
-        self.identityMap[id] = IdentityRuleMap(version: version, ruleMap: ruleMap)
+        self.ruleMapByIdentity[id] = IdentityRuleMap(version: version, ruleMap: ruleMap)
         
         // 发布新的快照信息
         let snapshot = compileSnapshot()
@@ -84,12 +84,12 @@ actor PolicyRuleStore {
     func clear() {
         self.coolingDown.removeAll()
         self.versions.removeAll()
-        self.identityMap.removeAll()
-        self.publisher.publish(IdentitySnapshot.empty())
+        self.ruleMapByIdentity.removeAll()
+        self.publisher.publish(PolicyRuleSnapshot.empty())
     }
     
-    private func compileSnapshot() -> IdentitySnapshot {
-        return IdentitySnapshot(identityMap: identityMap)
+    private func compileSnapshot() -> PolicyRuleSnapshot {
+        return PolicyRuleSnapshot(ruleMapByIdentity: ruleMapByIdentity)
     }
 
     private func endCooldown(for key: UInt32) {
diff --git a/Tun/Punchnet/Policy/PolicyService.swift b/Tun/Punchnet/Policy/PolicyService.swift
index ddd63b1..07c3b18 100644
--- a/Tun/Punchnet/Policy/PolicyService.swift
+++ b/Tun/Punchnet/Policy/PolicyService.swift
@@ -10,7 +10,7 @@ import Foundation
 actor PolicyService {
     // 处理权限控制
     private let policyRuleStore: PolicyRuleStore
-    nonisolated private let snapshotPublisher: SnapshotPublisher<IdentitySnapshot>
+    nonisolated private let snapshotPublisher: SnapshotPublisher<PolicyRuleSnapshot>
     
     // Flow流会话管理， 过期时间为: 180秒
     nonisolated private let flowSessionManager = SDLFlowSessionManager(sessionTimeout: 180)
@@ -21,13 +21,13 @@ actor PolicyService {
     init(identityId: UInt32) {
         self.identityId = identityId
         // 权限控制
-        let snapshotPublisher = SnapshotPublisher(initial: IdentitySnapshot.empty())
+        let snapshotPublisher = SnapshotPublisher(initial: PolicyRuleSnapshot.empty())
         self.policyRuleStore = PolicyRuleStore(publisher: snapshotPublisher)
         self.snapshotPublisher = snapshotPublisher
     }
     
     nonisolated func policyRuntime() -> PolicyRuntime {
-        let policySnapshot = PolicySnapshot(identitySnapshot: self.snapshotPublisher.current())
+        let policySnapshot = PolicySnapshot(policyRuleSnapshot: self.snapshotPublisher.current())
         return PolicyRuntime(policySnapshot: policySnapshot, flowSessionManager: self.flowSessionManager)
     }
 
diff --git a/Tun/Punchnet/Policy/PolicySnapshot.swift b/Tun/Punchnet/Policy/PolicySnapshot.swift
index b97ffa7..48ec8a4 100644
--- a/Tun/Punchnet/Policy/PolicySnapshot.swift
+++ b/Tun/Punchnet/Policy/PolicySnapshot.swift
@@ -8,14 +8,14 @@
 import Foundation
 
 final class PolicySnapshot: Snapshot {
-    private let identitySnapshot: IdentitySnapshot
+    private let policyRuleSnapshot: PolicyRuleSnapshot
 
-    init(identitySnapshot: IdentitySnapshot) {
-        self.identitySnapshot = identitySnapshot
+    init(policyRuleSnapshot: PolicyRuleSnapshot) {
+        self.policyRuleSnapshot = policyRuleSnapshot
     }
 
     func allows(srcIdentityID: UInt32, ipPacket: IPPacket) -> Bool {
-        let ruleMap = self.identitySnapshot.lookup(srcIdentityID)
+        let ruleMap = self.policyRuleSnapshot.lookup(srcIdentityID)
         let proto = ipPacket.header.proto
 
         switch ipPacket.transportPacket {
@@ -31,6 +31,6 @@ final class PolicySnapshot: Snapshot {
     }
 
     static func empty() -> PolicySnapshot {
-        return PolicySnapshot(identitySnapshot: .empty())
+        return PolicySnapshot(policyRuleSnapshot: .empty())
     }
 }