From e669113b1319ba08847a05dcdf578b801ef59db1 Mon Sep 17 00:00:00 2001
From: winesync <ros-dev@reactos.org>
Date: Thu, 4 Jan 2024 12:57:41 +0100
Subject: [PATCH] [WINESYNC] setupapi: Add support for creating registry
 symlinks from a .inf file.

wine commit id f6b3dba7a08a718f633804da508e4586ae72e6f5 by Alexandre Julliard <julliard@winehq.org>

SYNC NOTE: This is Wine-specific functionality, placed in __WINESRC__
REG_LINK is _NOT_ supported by (official) Windows INF AddReg section.
See the WDK ChkInf.pm tool (from Win2003 up to Win10), for example at:
https://github.com/skycipher/CNGProvider/blob/master/Windows%20Kits/10/Tools/x86/ChkInf/chkinf.pm#L3870
---
 dll/win32/setupapi/install.c    | 39 +++++++++++++++++++++++++--------
 sdk/tools/winesync/setupapi.cfg |  2 +-
 2 files changed, 31 insertions(+), 10 deletions(-)

diff --git a/dll/win32/setupapi/install.c b/dll/win32/setupapi/install.c
index c1dd8fb413e..cddbfb9780b 100644
--- a/dll/win32/setupapi/install.c
+++ b/dll/win32/setupapi/install.c
@@ -381,6 +381,9 @@ static BOOL do_reg_operation( HKEY hkey, const WCHAR *value, INFCONTEXT *context
             {
                 if (!(str = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) ))) return FALSE;
                 SetupGetStringFieldW( context, 5, str, size, NULL );
+#ifdef __WINESRC__
+                if (type == REG_LINK) size--;  /* no terminating null for symlinks */
+#endif
             }
         }
 
@@ -476,6 +479,7 @@ static BOOL registry_callback( HINF hinf, PCWSTR field, void *arg )
 
     for (; ok; ok = SetupFindNextLine( &context, &context ))
     {
+        DWORD options = 0;
         WCHAR buffer[MAX_INF_STRING_LENGTH];
         INT flags;
 
@@ -501,20 +505,37 @@ static BOOL registry_callback( HINF hinf, PCWSTR field, void *arg )
             if (!flags) flags = FLG_ADDREG_DELREG_BIT;
             else if (!(flags & FLG_ADDREG_DELREG_BIT)) continue;  /* ignore this entry */
         }
+#ifdef __WINESRC__
+        /* Wine extension: magic support for symlinks */
+        if (flags >> 16 == REG_LINK) options = REG_OPTION_OPEN_LINK | REG_OPTION_CREATE_LINK;
+#endif
 
         if (info->delete || (flags & FLG_ADDREG_OVERWRITEONLY))
         {
-            if (RegOpenKeyW( root_key, buffer, &hkey )) continue;  /* ignore if it doesn't exist */
+            if (RegOpenKeyExW( root_key, buffer, options, MAXIMUM_ALLOWED, &hkey ))
+                continue;  /* ignore if it doesn't exist */
         }
-#ifdef __REACTOS__
-        else if (RegCreateKeyExW( root_key, buffer, 0, NULL, 0, MAXIMUM_ALLOWED,
-            sd ? &security_attributes : NULL, &hkey, NULL ))
-#else
-        else if (RegCreateKeyW( root_key, buffer, &hkey ))
-#endif
+        else
         {
-            ERR( "could not create key %p %s\n", root_key, debugstr_w(buffer) );
-            continue;
+#ifdef __REACTOS__
+            DWORD res = RegCreateKeyExW( root_key, buffer, 0, NULL, options,
+                                         MAXIMUM_ALLOWED,
+                                         sd ? &security_attributes : NULL,
+                                         &hkey, NULL );
+#else
+            DWORD res = RegCreateKeyExW( root_key, buffer, 0, NULL, options,
+                                         MAXIMUM_ALLOWED, NULL, &hkey, NULL );
+#endif
+#ifdef __WINESRC__
+            if (res == ERROR_ALREADY_EXISTS && (options & REG_OPTION_CREATE_LINK))
+                res = RegCreateKeyExW( root_key, buffer, 0, NULL, REG_OPTION_OPEN_LINK,
+                                       MAXIMUM_ALLOWED, NULL, &hkey, NULL );
+#endif
+            if (res)
+            {
+                ERR( "could not create key %p %s\n", root_key, debugstr_w(buffer) );
+                continue;
+            }
         }
         TRACE( "key %p %s\n", root_key, debugstr_w(buffer) );
 
diff --git a/sdk/tools/winesync/setupapi.cfg b/sdk/tools/winesync/setupapi.cfg
index 25040483614..6ba046c61ad 100644
--- a/sdk/tools/winesync/setupapi.cfg
+++ b/sdk/tools/winesync/setupapi.cfg
@@ -5,4 +5,4 @@ files:
   dlls/setupapi/misc.c: dll/win32/setupapi/misc.c
   dlls/setupapi/stubs.c: dll/win32/setupapi/stubs.c
 tags:
-  wine: c7d4b0c69fb8de9a2344c7d9d4bcda6e3feef094
+  wine: f6b3dba7a08a718f633804da508e4586ae72e6f5