Zebediah Figura : msi: Avoid starting the RPC server more than once for a given package.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 5c7cf0a47d9d43b11f84914f5890eae3fd694592
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=5c7cf0a47d9d43b11f84914f5...

Author: Zebediah Figura 
Date:   Tue Jul 10 12:08:44 2018 +0200

msi: Avoid starting the RPC server more than once for a given package.

Signed-off-by: Zebediah Figura 
Signed-off-by: Hans Leidekker 
Signed-off-by: Alexandre Julliard

---

dlls/msi/custom.c  | 46 +++++++++++++++++++++-------------------------
 dlls/msi/msipriv.h |  1 +
 dlls/msi/package.c |  2 ++
 3 files changed, 24 insertions(+), 25 deletions(-)

diff --git a/dlls/msi/custom.c b/dlls/msi/custom.c
index e68528f..af6e9f7 100644
--- a/dlls/msi/custom.c
+++ b/dlls/msi/custom.c
@@ -572,16 +572,15 @@ UINT CDECL __wine_msi_call_dll_function(const GUID *guid)
     return r;
 }

-static DWORD WINAPI DllThread( LPVOID arg )
+static DWORD WINAPI custom_client_thread(void *arg)
 {
     static const WCHAR msiexecW[] = {'\','m','s','i','e','x','e','c','.','e','x','e',0};
     static const WCHAR argsW[] = {' ','-','E','m','b','e','d','d','i','n','g',' ',0};
-    msi_custom_action_info *info;
+    msi_custom_action_info *info = arg;
     PROCESS_INFORMATION pi = {0};
     STARTUPINFOW si = {0};
     WCHAR buffer[MAX_PATH], cmdline[MAX_PATH + 60];
     RPC_STATUS status;
-    GUID *guid = arg;
     void *cookie;
     BOOL wow64;
     DWORD arch;
@@ -592,24 +591,28 @@ static DWORD WINAPI DllThread( LPVOID arg )

CoInitializeEx(NULL, COINIT_MULTITHREADED); /* needed to marshal streams */

-    status = RpcServerUseProtseqEpW(ncalrpcW, RPC_C_PROTSEQ_MAX_REQS_DEFAULT, endpoint_lrpcW, NULL);
-    if (status != RPC_S_OK)
+    if (!info->package->rpc_server_started)
     {
-        ERR("RpcServerUseProtseqEp failed: %#x\n", status);
-        return status;
-    }
+        status = RpcServerUseProtseqEpW(ncalrpcW, RPC_C_PROTSEQ_MAX_REQS_DEFAULT,
+            endpoint_lrpcW, NULL);
+        if (status != RPC_S_OK)
+        {
+            ERR("RpcServerUseProtseqEp failed: %#x\n", status);
+            return status;
+        }

-    status = RpcServerRegisterIfEx(s_IWineMsiRemote_v0_0_s_ifspec, NULL, NULL,
-        RPC_IF_AUTOLISTEN, RPC_C_LISTEN_MAX_CALLS_DEFAULT, NULL);
-    if (status != RPC_S_OK)
-    {
-        ERR("RpcServerRegisterIfEx failed: %#x\n", status);
-        return status;
+        status = RpcServerRegisterIfEx(s_IWineMsiRemote_v0_0_s_ifspec, NULL, NULL,
+            RPC_IF_AUTOLISTEN, RPC_C_LISTEN_MAX_CALLS_DEFAULT, NULL);
+        if (status != RPC_S_OK)
+        {
+            ERR("RpcServerRegisterIfEx failed: %#x\n", status);
+            return status;
+        }
+
+        info->package->rpc_server_started = 1;
     }

-    info = find_action_by_guid(guid);
     ret = GetBinaryTypeW(info->source, &arch);
-    release_custom_action_data(info);

if (sizeof(void *) == 8 && ret && arch == SCS_32BIT_BINARY)
         GetSystemWow64DirectoryW(buffer, MAX_PATH - sizeof(msiexecW)/sizeof(WCHAR));
@@ -618,7 +621,7 @@ static DWORD WINAPI DllThread( LPVOID arg )
     strcatW(buffer, msiexecW);
     strcpyW(cmdline, buffer);
     strcatW(cmdline, argsW);
-    StringFromGUID2(guid, cmdline + strlenW(cmdline), 39);
+    StringFromGUID2(&info->guid, cmdline + strlenW(cmdline), 39);

if (IsWow64Process(GetCurrentProcess(), &wow64) && wow64 && arch == SCS_64BIT_BINARY)
     {
@@ -634,13 +637,6 @@ static DWORD WINAPI DllThread( LPVOID arg )
     CloseHandle(pi.hProcess);
     CloseHandle(pi.hThread);

-    status = RpcServerUnregisterIf(s_IWineMsiRemote_v0_0_s_ifspec, NULL, FALSE);
-    if (status != RPC_S_OK)
-    {
-        ERR("RpcServerUnregisterIf failed: %#x\n", status);
-        return status;
-    }
-
     CoUninitialize();

TRACE("custom action (%x) returned %i\n", GetCurrentThreadId(), rc );
@@ -671,7 +667,7 @@ static msi_custom_action_info *do_msidbCustomActionTypeDll(
     list_add_tail( &msi_pending_custom_actions, &info->entry );
     LeaveCriticalSection( &msi_custom_action_cs );

-    info->handle = CreateThread( NULL, 0, DllThread, &info->guid, 0, NULL );
+    info->handle = CreateThread(NULL, 0, custom_client_thread, info, 0, NULL);
     if (!info->handle)
     {
         /* release both references */
diff --git a/dlls/msi/msipriv.h b/dlls/msi/msipriv.h
index 789d541..6304375 100644
--- a/dlls/msi/msipriv.h
+++ b/dlls/msi/msipriv.h
@@ -449,6 +449,7 @@ typedef struct tagMSIPACKAGE
     unsigned char need_reboot_at_end : 1;
     unsigned char need_reboot_now : 1;
     unsigned char need_rollback : 1;
+    unsigned char rpc_server_started : 1;
 } MSIPACKAGE;

typedef struct tagMSIPREVIEW
diff --git a/dlls/msi/package.c b/dlls/msi/package.c
index d6f22d0..9569c4f 100644
--- a/dlls/msi/package.c
+++ b/dlls/msi/package.c
@@ -342,6 +342,8 @@ static void MSI_FreePackage( MSIOBJECTHDR *arg)
     msiobj_release( &package->db->hdr );
     free_package_structures(package);
     CloseHandle( package->log_file );
+    if (package->rpc_server_started)
+        RpcServerUnregisterIf(s_IWineMsiRemote_v0_0_s_ifspec, NULL, FALSE);

if (package->delete_on_close) DeleteFileW( package->localfile );
     msi_free( package->localfile );