orca/config/patches/@vscode__windows-process-tree@0.8.0.patch

diff --git a/binding.gyp b/binding.gyp
index 855bd4b86f0a3c18c7594212c0e42b6e35bc4001..0bb2af7923b6e6f1f0da40cae8067304cd1fea14 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -3,7 +3,6 @@
     {
       "target_name": "windows_process_tree",
       "dependencies": [
-        "<!(node -p \"require('node-addon-api').targets\"):node_addon_api_except",
       ],
       "conditions": [
         ['OS=="win"', {
@@ -14,13 +13,12 @@
             "src/process_worker.cc",
             "src/process_commandline.cc"
           ],
-          "include_dirs": [],
+          "include_dirs": ["deps/node-addon-api"],
+          "defines": ["NAPI_CPP_EXCEPTIONS", "_HAS_EXCEPTIONS=1"],
           "libraries": [ 'psapi.lib' ],
-          "msvs_configuration_attributes": {
-            "SpectreMitigation": "Spectre"
-          },
           "msvs_settings": {
             "VCCLCompilerTool": {
+              "ExceptionHandling": 1,
               "AdditionalOptions": [
                 "/guard:cf",
                 "/sdl",
diff --git a/lib/index.js b/lib/index.js
index 9747a7402600cd252859144d32580ed45c8c93f7..001e81fa8bc89091971d06aaf9d051ba20906615 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -7,11 +7,13 @@ Object.defineProperty(exports, "__esModule", { value: true });
 exports.getAllProcesses = exports.getProcessTree = exports.getProcessCpuUsage = exports.getProcessList = exports.filterProcessList = exports.buildProcessTree = exports.ProcessDataFlag = void 0;
 const util_1 = require("util");
 const native = process.platform === 'win32' ? require('../build/Release/windows_process_tree.node') : undefined;
+exports.supportedProcessDataFlags = native === undefined ? undefined : native.supportedProcessDataFlags;
 var ProcessDataFlag;
 (function (ProcessDataFlag) {
     ProcessDataFlag[ProcessDataFlag["None"] = 0] = "None";
     ProcessDataFlag[ProcessDataFlag["Memory"] = 1] = "Memory";
     ProcessDataFlag[ProcessDataFlag["CommandLine"] = 2] = "CommandLine";
+    ProcessDataFlag[ProcessDataFlag["CreationTime"] = 4] = "CreationTime";
 })(ProcessDataFlag = exports.ProcessDataFlag || (exports.ProcessDataFlag = {}));
 // requestInProgress is used for any function that uses CreateToolhelp32Snapshot, as multiple calls
 // to this cannot be done at the same time.
@@ -66,11 +68,12 @@ function buildProcessTree(rootPid, processList, maxDepth = MAX_FILTER_DEPTH) {
     // • the properties are inlined/splatted
     // • the 'ppid' field is omitted
     // • the depth of the tree is limited by `maxDepth`
-    const buildNode = ({ info: { pid, name, memory, commandLine }, children }, depth) => ({
+    const buildNode = ({ info: { pid, name, memory, commandLine, creationTimeMs }, children }, depth) => ({
         pid,
         name,
         memory,
         commandLine,
+        creationTimeMs,
         children: depth > 0 ? children.map(c => buildNode(c, depth - 1)) : [],
     });
     return buildNode(root, maxDepth);
diff --git a/lib/index.ts b/lib/index.ts
index f9aa005d9ced9e42885b8a976de5eb5bd61899ee..1b509af0b9065918bcb5cb75f2d7f23821d4a56a 100644
--- a/lib/index.ts
+++ b/lib/index.ts
@@ -6,12 +6,15 @@
 import { promisify } from 'util';
 
 const native = process.platform === 'win32' ? require('../build/Release/windows_process_tree.node') : undefined;
+/** The flag bits this compiled addon reports; undefined off win32. */
+export const supportedProcessDataFlags: number | undefined = native?.supportedProcessDataFlags;
 import { IProcessInfo, IProcessTreeNode, IProcessCpuInfo } from '@vscode/windows-process-tree';
 
 export enum ProcessDataFlag {
   None = 0,
   Memory = 1,
-  CommandLine = 2
+  CommandLine = 2,
+  CreationTime = 4
 }
 
 type RequestCallback = (processList: IProcessInfo[]) => void;
@@ -81,11 +84,12 @@ export function buildProcessTree(rootPid: number, processList: Iterable<IProcess
   // • the properties are inlined/splatted
   // • the 'ppid' field is omitted
   // • the depth of the tree is limited by `maxDepth`
-  const buildNode = ({ info: { pid, name, memory, commandLine }, children }: IProcessInfoNode, depth: number): IProcessTreeNode => ({
+  const buildNode = ({ info: { pid, name, memory, commandLine, creationTimeMs }, children }: IProcessInfoNode, depth: number): IProcessTreeNode => ({
     pid,
     name,
     memory,
     commandLine,
+    creationTimeMs,
     children: depth > 0 ? children.map(c => buildNode(c, depth - 1)) : [],
   });
 
diff --git a/src/addon.cc b/src/addon.cc
index 9214aff281251e797a70ecb9f6e0b52932a0503f..722edd42ddb4740296bfc47582a181bd6d00c464 100644
--- a/src/addon.cc
+++ b/src/addon.cc
@@ -53,6 +53,10 @@ void GetProcessCpuUsage(const Napi::CallbackInfo& args) {
 Napi::Object Init(Napi::Env env, Napi::Object exports) {
   exports.Set("getProcessList", Napi::Function::New(env, GetProcessList));
   exports.Set("getProcessCpuUsage", Napi::Function::New(env, GetProcessCpuUsage));
+  // Lets a caller prove THIS BINARY understands CREATIONTIME. The JS enum is
+  // patched source and says nothing about what the .node was compiled from.
+  exports.Set("supportedProcessDataFlags",
+              Napi::Number::New(env, MEMORY | COMMANDLINE | CREATIONTIME));
   return exports;
 }
 
diff --git a/src/process.cc b/src/process.cc
index 3eea92077c4d1d433119361d5c432881859131e9..22a47421da919c76e2194280974d39c2287b098d 100644
--- a/src/process.cc
+++ b/src/process.cc
@@ -21,7 +21,8 @@ uint32_t GetRawProcessList(std::vector<ProcessInfo>& process_info,
   if (Process32First(snapshot_handle, &process_entry)) {
     do {
       if (process_entry.th32ProcessID != 0) {
-        ProcessInfo pinfo;
+        // Value-initialize: `memory` is otherwise stack garbage when the flag is unset.
+        ProcessInfo pinfo{};
         pinfo.pid = process_entry.th32ProcessID;
         pinfo.ppid = process_entry.th32ParentProcessID;
 
@@ -33,23 +34,51 @@ uint32_t GetRawProcessList(std::vector<ProcessInfo>& process_info,
           GetProcessCommandLine(pinfo);
         }
 
+        if (CREATIONTIME & process_data_flags) {
+          GetProcessCreationTime(pinfo);
+        }
+
         strcpy(pinfo.name, process_entry.szExeFile);
         process_info.push_back(std::move(pinfo));
         process_count++;
       }
-    } while (process_count < 1024 && Process32Next(snapshot_handle, &process_entry));
+    } while (Process32Next(snapshot_handle, &process_entry));
   }
 
   CloseHandle(snapshot_handle);
   return process_count;
 }
 
+void GetProcessCreationTime(ProcessInfo& process_info) {
+  HANDLE hProcess = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, false, process_info.pid);
+  if (hProcess == NULL) {
+    return;
+  }
+
+  FILETIME creationTime, exitTime, kernelTime, userTime;
+  if (GetProcessTimes(hProcess, &creationTime, &exitTime, &kernelTime, &userTime)) {
+    ULARGE_INTEGER timestamp;
+    timestamp.LowPart = creationTime.dwLowDateTime;
+    timestamp.HighPart = creationTime.dwHighDateTime;
+    constexpr ULONGLONG WINDOWS_EPOCH_OFFSET_100NS = 116444736000000000ULL;
+    constexpr ULONGLONG HUNDRED_NS_PER_MILLISECOND = 10000ULL;
+    if (timestamp.QuadPart >= WINDOWS_EPOCH_OFFSET_100NS) {
+      process_info.creationTimeMs =
+          (timestamp.QuadPart - WINDOWS_EPOCH_OFFSET_100NS) / HUNDRED_NS_PER_MILLISECOND;
+    }
+  }
+
+  CloseHandle(hProcess);
+}
+
 void GetProcessMemoryUsage(ProcessInfo& process_info) {
   DWORD pid = process_info.pid;
   HANDLE hProcess;
   PROCESS_MEMORY_COUNTERS pmc;
 
-  hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, false, pid);
+  // PROCESS_VM_READ is never used here -- GetProcessMemoryInfo reads counters the
+  // kernel keeps, not the address space -- and acquiring it is what EDR scores.
+  hProcess = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, false, pid);
 
   if (hProcess == NULL) {
     return;
@@ -81,7 +110,8 @@ void GetCpuUsage(Cpu& cpu_info, bool first_pass) {
   DWORD pid = cpu_info.pid;
   HANDLE hProcess;
 
-  hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, false, pid);
+  // GetProcessTimes needs no more than PROCESS_QUERY_LIMITED_INFORMATION.
+  hProcess = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, false, pid);
 
   if (hProcess == NULL) {
     return;
diff --git a/src/process.h b/src/process.h
index 82f8e4bcfa742551e5d874a7632736a7611d7aa7..78d1d2c3b2360ed06fd624b4cb2f5042510f7a77 100644
--- a/src/process.h
+++ b/src/process.h
@@ -22,18 +22,22 @@ struct ProcessInfo {
   DWORD ppid;
   DWORD memory; // Reported in bytes
   std::string commandLine;
+  ULONGLONG creationTimeMs;
 };
 
 enum ProcessDataFlags {
   NONE = 0,
   MEMORY = 1,
-  COMMANDLINE = 2
+  COMMANDLINE = 2,
+  CREATIONTIME = 4
 };
 
 uint32_t GetRawProcessList(std::vector<ProcessInfo>& process_info, DWORD flags);
 
 void GetProcessMemoryUsage(ProcessInfo& process_info);
 
+void GetProcessCreationTime(ProcessInfo& process_info);
+
 void GetCpuUsage(Cpu& cpu_info, bool first_run);
 
 #endif  // SRC_PROCESS_H_
diff --git a/src/process_commandline.cc b/src/process_commandline.cc
index ea822b120e8038a4803e34647042f08f4aaf5ca1..25907c0bf542bed6c72b1b462b19bcf3210c3cfd 100644
--- a/src/process_commandline.cc
+++ b/src/process_commandline.cc
@@ -7,61 +7,119 @@
 #include "process_commandline.h"
 #include <windows.h>
 #include <winternl.h>
-#include <iostream>
+#include <vector>
 
-bool GetProcessCommandLine(ProcessInfo& process_info) {
-  HINSTANCE ntdll = GetModuleHandleW(L"ntdll.dll");
+namespace {
+
+// Windows 8.1 and later hand back a process's command line as a UNICODE_STRING
+// the kernel builds, needing only PROCESS_QUERY_LIMITED_INFORMATION.
+//
+// There is deliberately no PEB fallback. Reading the command line out of the
+// target's address space -- opening it for VM reads and then chaining
+// memory reads across every pid on a timer -- is the credential-dumping
+// primitive this reader exists to not perform, so it is absent from the binary
+// rather than one anomalous NTSTATUS away. Electron's floor is Windows 10, so
+// every OS Orca supports has this class; if a hooked ntdll refuses it anyway,
+// the command line comes back empty, which callers already handle, instead of
+// silently reinstating the primitive on exactly the instrumented machines this
+// reader was written for.
+const ULONG kProcessCommandLineInformation = 60;
+
+const NTSTATUS kStatusInfoLengthMismatch = static_cast<NTSTATUS>(0xC0000004L);
+const NTSTATUS kStatusBufferTooSmall = static_cast<NTSTATUS>(0xC0000023L);
+
+// A command line is a UNICODE_STRING, whose Length is a USHORT, so the kernel
+// can never need more than the header plus 64 KiB. Refusing anything larger
+// keeps a bogus size from throwing bad_alloc out of a scan that has already
+// walked most of the table.
+const ULONG kMaxCommandLineBytes = sizeof(UNICODE_STRING) + 0xFFFF + sizeof(wchar_t);
+
+// winternl.h's PROCESSINFOCLASS does not name class 60 and its enumerator range
+// stops far short of it, so the class travels as a ULONG rather than a cast enum.
+typedef NTSTATUS(NTAPI* NtQueryInformationProcessFn)(HANDLE, ULONG, PVOID, ULONG, PULONG);
+
+// ntdll ships no import library for this entry point; it has to be resolved.
+NtQueryInformationProcessFn ResolveNtQueryInformationProcess() {
+  HMODULE ntdll = GetModuleHandleW(L"ntdll.dll");
   if (!ntdll) {
+    return nullptr;
+  }
+  return reinterpret_cast<NtQueryInformationProcessFn>(
+      GetProcAddress(ntdll, "NtQueryInformationProcess"));
+}
+
+NtQueryInformationProcessFn NtQueryInformationProcessEntry() {
+  static NtQueryInformationProcessFn entry = ResolveNtQueryInformationProcess();
+  return entry;
+}
+
+bool StoreCommandLineUtf8(ProcessInfo& process_info, const wchar_t* data, size_t wide_length) {
+  if (wide_length == 0) {
+    return false;
+  }
+  int length = static_cast<int>(wide_length);
+  int charcount = WideCharToMultiByte(CP_UTF8, 0, data, length, NULL, 0, NULL, NULL);
+  if (!charcount) {
     return false;
   }
+  process_info.commandLine.resize(static_cast<size_t>(charcount));
+  WideCharToMultiByte(CP_UTF8, 0, data, length, &process_info.commandLine[0], charcount, NULL,
+                      NULL);
+  return true;
+}
+
+}  // namespace
 
-  decltype(NtQueryInformationProcess)* nt_query_information_process =
-      reinterpret_cast<decltype(NtQueryInformationProcess)*>(
-          GetProcAddress(ntdll, "NtQueryInformationProcess"));
+bool GetProcessCommandLine(ProcessInfo& process_info) {
+  NtQueryInformationProcessFn query = NtQueryInformationProcessEntry();
+  if (!query) {
+    return false;
+  }
 
-  if (!nt_query_information_process) {
+  HANDLE process = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_info.pid);
+  if (process == NULL) {
     return false;
   }
 
-  PROCESS_BASIC_INFORMATION pbi{};
-  PEB peb = {NULL};
-  RTL_USER_PROCESS_PARAMETERS process_parameters = {NULL};
+  ULONG size = 0;
+  NTSTATUS status = query(process, kProcessCommandLineInformation, nullptr, 0, &size);
+  if (NT_SUCCESS(status)) {
+    // Nothing was written, so there is no command line to read.
+    CloseHandle(process);
+    return false;
+  }
+  if (status != kStatusInfoLengthMismatch && status != kStatusBufferTooSmall) {
+    CloseHandle(process);
+    return false;
+  }
+  if (size < sizeof(UNICODE_STRING) || size > kMaxCommandLineBytes) {
+    CloseHandle(process);
+    return false;
+  }
 
-  // Get process handle
-  DWORD pid = process_info.pid;
-  HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pid);
-  if (hProcess == INVALID_HANDLE_VALUE) {
+  std::vector<unsigned char> buffer(size);
+  status = query(process, kProcessCommandLineInformation, &buffer[0], size, &size);
+  CloseHandle(process);
+  if (!NT_SUCCESS(status)) {
     return false;
   }
 
-  // Get Process Environment Block (PEB)
-  NTSTATUS status = nt_query_information_process(hProcess, ProcessBasicInformation, &pbi, sizeof(pbi), nullptr);
-  if (NT_SUCCESS(status) && pbi.PebBaseAddress) {
-    // Read PEB
-    if (ReadProcessMemory(hProcess, pbi.PebBaseAddress, &peb, sizeof(peb), nullptr)) {
-      // Read the processs parameters
-      if (ReadProcessMemory(hProcess, peb.ProcessParameters, &process_parameters, sizeof(RTL_USER_PROCESS_PARAMETERS), nullptr)) {
-        if (process_parameters.CommandLine.Length > 0) {
-          std::wstring buffer;
-          buffer.resize(process_parameters.CommandLine.Length / sizeof(wchar_t));
-          if (ReadProcessMemory(hProcess, process_parameters.CommandLine.Buffer, &buffer[0], process_parameters.CommandLine.Length, nullptr)) {
-            int wide_length = static_cast<int>(buffer.length());
-            int charcount = WideCharToMultiByte(CP_UTF8, 0, buffer.data(), wide_length,
-                                      NULL, 0, NULL, NULL);
-            if (charcount) {
-              process_info.commandLine.resize(static_cast<size_t>(charcount));
-              WideCharToMultiByte(CP_UTF8, 0, buffer.data(), wide_length,
-                                  &process_info.commandLine[0], charcount,
-                                  NULL, NULL);
-            }
-            CloseHandle(hProcess);
-            return true;
-          }
-        }
-      }
-    }
+  // Header and characters arrive in one allocation, but treat the header as
+  // untrusted: a hooked ntdll is the case this reader is written for, and an
+  // unchecked Buffer/Length here would be an over-read encoded straight into JS.
+  // Bound against buffer.size(), never `size` -- the second query overwrote it.
+  const UNICODE_STRING* command_line = reinterpret_cast<const UNICODE_STRING*>(&buffer[0]);
+  const unsigned char* begin = &buffer[0];
+  const unsigned char* end = begin + buffer.size();
+  const unsigned char* chars = reinterpret_cast<const unsigned char*>(command_line->Buffer);
+  if (chars == nullptr || chars < begin + sizeof(UNICODE_STRING) || chars > end ||
+      command_line->Length > static_cast<ULONG>(end - chars)) {
+    return false;
   }
 
-  CloseHandle(hProcess);
-  return false;
+  // True only when a command line was actually stored, so "empty" and "not
+  // recovered" stay the same answer they were before this reader replaced the
+  // PEB read. `src/process.cc` discards the result either way.
+  return StoreCommandLineUtf8(process_info, command_line->Buffer,
+                              command_line->Length / sizeof(wchar_t));
 }
diff --git a/src/process_worker.cc b/src/process_worker.cc
index c9e3457a759c1acaa2644231a4917d45aed951f8..3f26a354477f062b34bd31fbd17be529e6a2fd7a 100644
--- a/src/process_worker.cc
+++ b/src/process_worker.cc
@@ -43,6 +43,11 @@ void GetProcessesWorker::OnOK() {
           Napi::String::New(env, pinfo.commandLine));
     }
 
+    if ((CREATIONTIME & process_data_flags_) && pinfo.creationTimeMs != 0) {
+      object.Set("creationTimeMs",
+                 Napi::Number::New(env, static_cast<double>(pinfo.creationTimeMs)));
+    }
+
     result.Set(i, object);
   }
 
diff --git a/typings/windows-process-tree.d.ts b/typings/windows-process-tree.d.ts
index 08bdac2fdc5ead6f0fcfb5ee5a021e2298c7d523..458981566fc45c0084badff566b1e3791ec1b629 100644
--- a/typings/windows-process-tree.d.ts
+++ b/typings/windows-process-tree.d.ts
@@ -7,9 +7,17 @@ declare module '@vscode/windows-process-tree' {
   export enum ProcessDataFlag {
     None = 0,
     Memory = 1,
-    CommandLine = 2
+    CommandLine = 2,
+    CreationTime = 4
   }
 
+  /**
+   * The flag bits the compiled addon actually understands, or undefined off
+   * win32. `ProcessDataFlag` above is source; this is what the binary reports,
+   * so it is the only way to tell a patched build from a stale prebuilt.
+   */
+  export const supportedProcessDataFlags: number | undefined;
+
   export interface IProcessInfo {
     pid: number;
     ppid: number;
@@ -24,6 +32,9 @@ declare module '@vscode/windows-process-tree' {
      * The string returned is at most 512 chars, strings exceeding this length are truncated.
      */
     commandLine?: string;
+
+    /** Process creation time in Unix milliseconds. */
+    creationTimeMs?: number;
   }
 
   export interface IProcessCpuInfo extends IProcessInfo {
@@ -35,6 +46,7 @@ declare module '@vscode/windows-process-tree' {
     name: string;
     memory?: number;
     commandLine?: string;
+    creationTimeMs?: number;
     children: IProcessTreeNode[];
   }