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fix

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anlicheng 2026-03-30 12:31:19 +08:00
parent 19414b4543
commit 92f224e721
1 changed files with 33 additions and 11 deletions
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24
Tun/Punchnet/Actors/SDLContextActor.swift
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@ -564,7 +564,8 @@ actor SDLContextActor {
SDLLogger.shared.log("[SDLContext] get invalid arp packet", level: .debug)
}
case .ipv4:
guard let ipPacket = IPPacket(layerPacket.data), ipPacket.header.destination == networkAddr.ip else {
// 有数据是通过出口网关转发的，所有只判断是合法的ip包
guard let ipPacket = IPPacket(layerPacket.data) else {
return
}
@ -676,6 +677,9 @@ actor SDLContextActor {
SDLLogger.shared.log("[SDLContext] flow_session: \(flowSession)", level: .debug)
}
// 判断目标地址是否和当前的网络地址是否在同一个网段
// 只有在同一个网段的ip数据才直接发送
if SDLUtil.inSameNetwork(ip: dstIp, compareIp: networkAddr.ip, maskLen: networkAddr.maskLen) {
// 查找arp缓存中是否有目标mac地址
if let dstMac = await self.arpServer.query(ip: dstIp) {
SDLLogger.shared.log("[SDLContext] dstIp: \(dstIp.asIpAddress()), dst_mac is: \(SDLUtil.formatMacAddress(mac: dstMac))", level: .debug)
@ -690,6 +694,21 @@ actor SDLContextActor {
try? await self.arpServer.arpRequest(targetIp: dstIp, use: self.quicClient)
}
}
// 不在同一个网段的数据，看到是否配置了网络出口
// 如果配置了，转发数据个网络出口，否则丢弃
else {
let exitNodeIp: UInt32 = 1234
SDLLogger.shared.log("[SDLContext] global dstIp: \(packet.header.destination.asIpAddress())", level: .debug)
// 查找arp缓存中是否有目标mac地址
if let dstMac = await self.arpServer.query(ip: exitNodeIp) {
await self.routeLayerPacket(dstMac: dstMac, type: .ipv4, data: packet.data)
}
else {
try? await self.arpServer.arpRequest(targetIp: exitNodeIp, use: self.quicClient)
}
}
}
private func routeLayerPacket(dstMac: Data, type: LayerPacket.PacketType, data: Data) async {
let networkAddr = self.config.networkAddress
@ -739,6 +758,9 @@ actor SDLContextActor {
let routes: [NEIPv4Route] = [
NEIPv4Route(destinationAddress: networkAddress.netAddress, subnetMask: networkAddress.maskAddress),
NEIPv4Route(destinationAddress: dnsServer, subnetMask: "255.255.255.255"),
// TODO测试代码
NEIPv4Route(destinationAddress: "172.16.1.0", subnetMask: "255.255.255.0"),
]
// Add code here to start the process of connecting the tunnel.