modules/rostests/apitests/appshim/layer_hooks.c

   1 /*
   2  * PROJECT:     appshim_apitest
   3  * LICENSE:     GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
   4  * PURPOSE:     Test to document the hooks used by various shims in AcLayers
   5  * COPYRIGHT:   Copyright 2018 Mark Jansen (mark.jansen@reactos.org)
   6  */
   7
   8 #include <ntstatus.h>
   9 #define WIN32_NO_STATUS
  10 #include <windows.h>
  11 #include <ndk/rtlfuncs.h>
  12 #include <strsafe.h>
  13 #include "wine/test.h"
  14
  15 #include "appshim_apitest.h"
  16
  17 static DWORD g_WinVersion;
  18
  19
  20 typedef struct expect_shim_hook
  21 {
  22     const char* Library;
  23     const char* Function;
  24 } expect_shim_hook;
  25
  26 typedef struct expect_shim_data
  27 {
  28     const WCHAR* ShimName;
  29     DWORD MinVersion;
  30     expect_shim_hook hooks[6];
  31 } expect_shim_data;
  32
  33
  34 static expect_shim_data data[] =
  35 {
  36     {
  37         L"ForceDXSetupSuccess",
  38         0,
  39         {
  40             { "KERNEL32.DLL", "LoadLibraryA" },
  41             { "KERNEL32.DLL", "LoadLibraryW" },
  42             { "KERNEL32.DLL", "LoadLibraryExA" },
  43             { "KERNEL32.DLL", "LoadLibraryExW" },
  44             { "KERNEL32.DLL", "GetProcAddress" },
  45             { "KERNEL32.DLL", "FreeLibrary" },
  46         }
  47     },
  48     {
  49         L"VerifyVersionInfoLite",
  50         0,
  51         {
  52             { "KERNEL32.DLL", "VerifyVersionInfoA" },
  53             { "KERNEL32.DLL", "VerifyVersionInfoW" },
  54         }
  55     },
  56 };
  57
  58 static DWORD count_shims(expect_shim_data* data)
  59 {
  60     DWORD num;
  61     for (num = 0; num < _countof(data->hooks) && data->hooks[num].Library;)
  62     {
  63         ++num;
  64     }
  65     return num;
  66 }
  67
  68 static const char* safe_str(const char* ptr)
  69 {
  70     static char buffer[2][30];
  71     static int index = 0;
  72     if (HIWORD(ptr))
  73         return ptr;
  74
  75     index ^= 1;
  76     StringCchPrintfA(buffer[index], _countof(buffer[index]), "#%Id", (intptr_t)ptr);
  77     return buffer[index];
  78 }
  79
  80 START_TEST(layer_hooks)
  81 {
  82     RTL_OSVERSIONINFOEXW rtlinfo = {0};
  83     size_t n, h;
  84
  85     tGETHOOKAPIS pGetHookAPIs = LoadShimDLL2(L"AcLayers.dll");
  86     if (!pGetHookAPIs)
  87         return;
  88
  89     rtlinfo.dwOSVersionInfoSize = sizeof(rtlinfo);
  90     RtlGetVersion((PRTL_OSVERSIONINFOW)&rtlinfo);
  91     g_WinVersion = (rtlinfo.dwMajorVersion << 8) | rtlinfo.dwMinorVersion;
  92
  93
  94
  95     for (n = 0; n < _countof(data); ++n)
  96     {
  97         expect_shim_data* current = data + n;
  98         DWORD num_shims = 0, expected_shims = count_shims(current);
  99
 100         PHOOKAPI hook = pGetHookAPIs("", current->ShimName, &num_shims);
 101
 102         if (current->MinVersion > g_WinVersion && !hook)
 103             continue;
 104
 105         ok(!!hook, "Expected a valid pointer, got nothing for %s\n", wine_dbgstr_w(current->ShimName));
 106         ok(num_shims == expected_shims, "Expected %u shims, got %u for %s\n",
 107            expected_shims, num_shims, wine_dbgstr_w(current->ShimName));
 108         for (h = 0; h < min(num_shims, expected_shims); ++h)
 109         {
 110             expect_shim_hook* expect_hk = current->hooks + h;
 111             PHOOKAPI got_hk = hook+h;
 112             int lib = lstrcmpA(expect_hk->Library, got_hk->LibraryName);
 113             int fn = lstrcmpA(safe_str(expect_hk->Function), safe_str(got_hk->FunctionName));
 114             ok(lib == 0, "Expected LibraryName to be %s, was: %s for %s\n",
 115                expect_hk->Library, got_hk->LibraryName, wine_dbgstr_w(current->ShimName));
 116             ok(fn == 0, "Expected FunctionName to be %s, was: %s for %s\n",
 117                safe_str(expect_hk->Function), safe_str(got_hk->FunctionName), wine_dbgstr_w(current->ShimName));
 118         }
 119         if (num_shims > expected_shims)
 120         {
 121             for (h = expected_shims; h < num_shims; ++h)
 122             {
 123                 PHOOKAPI got_hk = hook+h;
 124
 125                 ok(0, "Extra shim: %s!%s for %s\n",
 126                    got_hk->LibraryName, safe_str(got_hk->FunctionName), wine_dbgstr_w(current->ShimName));
 127             }
 128         }
 129         else
 130         {
 131             for (h = num_shims; h < expected_shims; ++h)
 132             {
 133                 expect_shim_hook* expect_hk = current->hooks + h;
 134
 135                 ok(0, "Missing shim: %s!%s for %s\n",
 136                    expect_hk->Library, safe_str(expect_hk->Function), wine_dbgstr_w(current->ShimName));
 137             }
 138         }
 139     }
 140 }