From 7f6bfa6cc0ce75fc2c3ca707f9940f514ff3f14c Mon Sep 17 00:00:00 2001
From: momo5502 <mauriceheumann@gmail.com>
Date: Sat, 8 Feb 2025 20:41:03 +0100
Subject: [PATCH] Support fetching tag information

---
 src/common/platform/file_management.hpp |  7 +++++++
 src/windows-emulator/syscalls.cpp       | 24 ++++++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/src/common/platform/file_management.hpp b/src/common/platform/file_management.hpp
index 3e0e90d3..95050c6a 100644
--- a/src/common/platform/file_management.hpp
+++ b/src/common/platform/file_management.hpp
@@ -59,6 +59,7 @@
 #define FILE_CREATE_TREE_CONNECTION    0x00000080
 
 #define FILE_ATTRIBUTE_NORMAL          0x00000080
+#define FILE_ATTRIBUTE_DIRECTORY       0x00000010
 
 #define PS_ATTRIBUTE_NUMBER_MASK       0x0000ffff
 #define PS_ATTRIBUTE_THREAD            0x00010000 // may be used with thread creation
@@ -291,6 +292,12 @@ typedef struct _FILE_POSITION_INFORMATION
     LARGE_INTEGER CurrentByteOffset;
 } FILE_POSITION_INFORMATION, *PFILE_POSITION_INFORMATION;
 
+typedef struct _FILE_ATTRIBUTE_TAG_INFORMATION
+{
+    ULONG FileAttributes;
+    ULONG ReparseTag;
+} FILE_ATTRIBUTE_TAG_INFORMATION, *PFILE_ATTRIBUTE_TAG_INFORMATION;
+
 typedef struct _FILE_STANDARD_INFORMATION
 {
     LARGE_INTEGER AllocationSize;
diff --git a/src/windows-emulator/syscalls.cpp b/src/windows-emulator/syscalls.cpp
index 722ba92a..82567f8f 100644
--- a/src/windows-emulator/syscalls.cpp
+++ b/src/windows-emulator/syscalls.cpp
@@ -1841,6 +1841,30 @@ namespace
             return ret(STATUS_SUCCESS);
         }
 
+        if (info_class == FileAttributeTagInformation)
+        {
+            if (!f->handle)
+            {
+                return ret(STATUS_NOT_SUPPORTED);
+            }
+
+            block.Information = sizeof(FILE_ATTRIBUTE_TAG_INFORMATION);
+
+            if (length < block.Information)
+            {
+                return ret(STATUS_BUFFER_OVERFLOW);
+            }
+
+            const emulator_object<FILE_ATTRIBUTE_TAG_INFORMATION> info{c.emu, file_information};
+            FILE_ATTRIBUTE_TAG_INFORMATION i{};
+
+            i.FileAttributes = f->is_directory() ? FILE_ATTRIBUTE_DIRECTORY : FILE_ATTRIBUTE_NORMAL;
+
+            info.write(i);
+
+            return ret(STATUS_SUCCESS);
+        }
+
         c.win_emu.log.error("Unsupported query file info class: %X\n", info_class);
         c.emu.stop();