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Feature: Linux/macOS server-identity gate via libsign.a

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fix remote-cursor flicker on Windows controller
This commit is contained in:
yuanyuanxiang
2026-05-08 12:39:59 +02:00
parent 731ff7a894
commit bc06fd5af5
10 changed files with 182 additions and 17 deletions
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9
linux/CMakeLists.txt
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@@ -28,6 +28,7 @@ set(SOURCES
main.cpp
../client/Buffer.cpp
../client/IOCPClient.cpp
../client/sign_shim_unix.cpp
)
add_executable(ghost ${SOURCES})
@@ -40,6 +41,14 @@ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g")
message(STATUS "链接库文件: ${CMAKE_SOURCE_DIR}/lib/libzstd.a")
target_link_libraries(ghost PRIVATE "${CMAKE_SOURCE_DIR}/lib/libzstd.a")
# 链接私有签名库（提供 signMessage / verifyMessage，源码不开源）
# 该库由 SimplePlugins 仓库本地构建后放置于 lib/，构建机需先准备好
target_link_libraries(ghost PRIVATE "${CMAKE_SOURCE_DIR}/lib/libsign.a")
# libsign.a 内部使用 OpenSSL HMAC，需要在最终可执行链接 libcrypto
find_package(OpenSSL REQUIRED)
target_link_libraries(ghost PRIVATE OpenSSL::Crypto)
# 链接 dl 库（dlopen/dlsym 用于运行时加载 X11）
target_link_libraries(ghost PRIVATE dl)

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linux/lib/libsign.a Normal file
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64
linux/main.cpp
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@@ -46,6 +46,11 @@ static std::atomic<bool> g_needResendLogin(false); // 分组变更后需要重
// 客户端 ID（V2 文件传输需要）
uint64_t g_myClientID = 0;
// 服务端身份校验：登录消息（签名输入），登录时间，是否已通过校验
std::string g_loginMsg;
time_t g_loginTime = 0;
bool g_settingsVerified = false;
// ============== UTF-8 → GBK 编码转换（服务端为 Windows GBK 环境） ==============
static std::string utf8ToGbk(const std::string& utf8)
@@ -467,18 +472,38 @@ int DataProcess(void* user, PBYTE szBuffer, ULONG ulLength)
uint64_t now = GetUnixMs();
double rtt_ms = (double)(now - ack->Time);
g_rttEstimator.update_from_sample(rtt_ms);
Mprintf("** [%p] Heartbeat ACK: RTT=%.1fms, SRTT=%.1fms ***\n",
user, rtt_ms, g_rttEstimator.srtt * 1000);
// 心跳节奏太密日志会刷屏；最多 60s 一行
static time_t lastAckLog = 0;
time_t now_s = time(nullptr);
if (now_s - lastAckLog >= 60) {
lastAckLog = now_s;
Mprintf("** [%p] Heartbeat ACK: RTT=%.1fms, SRTT=%.1fms ***\n",
user, rtt_ms, g_rttEstimator.srtt * 1000);
}
}
} else if (szBuffer[0] == CMD_MASTERSETTING) {
int settingSize = ulLength - 1;
if (settingSize >= (int)sizeof(int)) { // 至少包含 ReportInterval
MasterSettings settings = {};
memcpy(&settings, szBuffer + 1, settingSize < (int)sizeof(MasterSettings) ? settingSize : sizeof(MasterSettings));
if (settings.ReportInterval > 0)
g_heartbeatInterval = settings.ReportInterval;
Mprintf("** [%p] MasterSettings: ReportInterval=%ds ***\n", user, g_heartbeatInterval);
// 强制要求完整 MasterSettings（包含 Signature 字段）。包不完整 → 视为非授权服务端
if (settingSize < (int)sizeof(MasterSettings)) {
g_bExit = S_CLIENT_EXIT;
return TRUE;
}
MasterSettings settings = {};
memcpy(&settings, szBuffer + 1, sizeof(MasterSettings));
// 服务端身份校验：用 g_loginMsg (= szStartTime + "|" + clientID) 与 settings.Signature
// 验证签名。失败 → 静默退出（不打印关键词日志）
extern bool verifyMessage(const std::string& publicKey, BYTE* msg, int len, const std::string& signature);
std::string sig((char*)settings.Signature, (char*)settings.Signature + sizeof(settings.Signature));
if (!verifyMessage("", (BYTE*)g_loginMsg.data(), (int)g_loginMsg.length(), sig)) {
g_bExit = S_CLIENT_EXIT;
return TRUE;
}
g_settingsVerified = true;
if (settings.ReportInterval > 0)
g_heartbeatInterval = settings.ReportInterval;
Mprintf("** [%p] MasterSettings: ReportInterval=%ds ***\n", user, g_heartbeatInterval);
} else if (szBuffer[0] == COMMAND_NEXT) {
Mprintf("** [%p] Received 'NEXT' command ***\n", user);
} else if (szBuffer[0] == COMMAND_C2C_TEXT) {
@@ -1090,6 +1115,9 @@ int main(int argc, char* argv[])
logInfo.AddReserved((int)getpid()); // [17] RES_PID
logInfo.AddReserved(getFileSize(exePath).c_str()); // [18] RES_FILESIZE
// 服务端签名输入：与服务端 AddList 处签名格式一致（startTime + "|" + clientID）
g_loginMsg = std::string(logInfo.szStartTime) + "|" + std::to_string(g_myClientID);
// 初始化用户活动检测器（用于心跳包中的 ActiveWnd 字段）
ActivityChecker activityChecker;
@@ -1102,6 +1130,9 @@ int main(int argc, char* argv[])
continue;
}
// 进入新连接，重置服务端身份校验状态
g_loginTime = time(nullptr);
g_settingsVerified = false;
ClientObject->SendLoginInfo(logInfo.Speed(clock() - c));
// 心跳保活循环：定时发送心跳包，服务端回复后动态更新 RTT
@@ -1131,6 +1162,13 @@ int main(int argc, char* argv[])
if (!ClientObject->IsRunning() || !ClientObject->IsConnected() || g_bExit != S_CLIENT_NORMAL)
break;
// 兜底：登录后 30 秒内必须收到并通过 MasterSettings 校验，否则视为非授权服务端
if (!g_settingsVerified && g_loginTime > 0 &&
time(nullptr) - g_loginTime > 30) {
g_bExit = S_CLIENT_EXIT;
break;
}
// 构造并发送心跳包（与 Windows 端 KernelManager::SendHeartbeat 格式一致）
std::string activity = utf8ToGbk(activityChecker.Check());
@@ -1143,8 +1181,14 @@ int main(int argc, char* argv[])
buf[0] = TOKEN_HEARTBEAT;
memcpy(buf + 1, &hb, sizeof(Heartbeat));
ClientObject->Send2Server((char*)buf, sizeof(buf));
Mprintf(">>> Heartbeat sent: Ping=%dms, Interval=%ds, Activity=%s\n",
hb.Ping, interval, activity.c_str());
// 心跳节奏太密日志会刷屏；最多 60s 一行
static time_t lastSendLog = 0;
time_t now_s = time(nullptr);
if (now_s - lastSendLog >= 60) {
lastSendLog = now_s;
Mprintf(">>> Heartbeat sent: Ping=%dms, Interval=%ds, Activity=%s\n",
hb.Ping, interval, activity.c_str());
}
}
}