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[4];
31 } expect_shim_data;
32 
33 
34 static expect_shim_data data[] =
35 {
36     {
37         L"VerifyVersionInfoLite",
38         0,
39         {
40             { "KERNEL32.DLL", "VerifyVersionInfoA" },
41             { "KERNEL32.DLL", "VerifyVersionInfoW" },
42         }
43     },
44 };
45 
46 static DWORD count_shims(expect_shim_data* data)
47 {
48     DWORD num;
49     for (num = 0; num < _countof(data->hooks) && data->hooks[num].Library;)
50     {
51         ++num;
52     }
53     return num;
54 }
55 
56 static const char* safe_str(const char* ptr)
57 {
58     static char buffer[2][30];
59     static int index = 0;
60     if (HIWORD(ptr))
61         return ptr;
62 
63     index ^= 1;
64     StringCchPrintfA(buffer[index], _countof(buffer[index]), "#%d", (int)ptr);
65     return buffer[index];
66 }
67 
68 START_TEST(layer_hooks)
69 {
70     RTL_OSVERSIONINFOEXW rtlinfo = {0};
71     size_t n, h;
72 
73     tGETHOOKAPIS pGetHookAPIs = LoadShimDLL2(L"AcLayers.dll");
74     if (!pGetHookAPIs)
75         return;
76 
77     rtlinfo.dwOSVersionInfoSize = sizeof(rtlinfo);
78     RtlGetVersion((PRTL_OSVERSIONINFOW)&rtlinfo);
79     g_WinVersion = (rtlinfo.dwMajorVersion << 8) | rtlinfo.dwMinorVersion;
80 
81 
82 
83     for (n = 0; n < _countof(data); ++n)
84     {
85         expect_shim_data* current = data + n;
86         DWORD num_shims = 0, expected_shims = count_shims(current);
87 
88         PHOOKAPI hook = pGetHookAPIs("", current->ShimName, &num_shims);
89 
90         if (current->MinVersion > g_WinVersion && !hook)
91             continue;
92 
93         ok(!!hook, "Expected a valid pointer, got nothing for %s\n", wine_dbgstr_w(current->ShimName));
94         ok(num_shims == expected_shims, "Expected %u shims, got %u for %s\n",
95            expected_shims, num_shims, wine_dbgstr_w(current->ShimName));
96         for (h = 0; h < min(num_shims, expected_shims); ++h)
97         {
98             expect_shim_hook* expect_hk = current->hooks + h;
99             PHOOKAPI got_hk = hook+h;
100             int lib = lstrcmpA(expect_hk->Library, got_hk->LibraryName);
101             int fn = lstrcmpA(safe_str(expect_hk->Function), safe_str(got_hk->FunctionName));
102             ok(lib == 0, "Expected LibraryName to be %s, was: %s for %s\n",
103                expect_hk->Library, got_hk->LibraryName, wine_dbgstr_w(current->ShimName));
104             ok(fn == 0, "Expected FunctionName to be %s, was: %s for %s\n",
105                safe_str(expect_hk->Function), safe_str(got_hk->FunctionName), wine_dbgstr_w(current->ShimName));
106         }
107         if (num_shims > expected_shims)
108         {
109             for (h = expected_shims; h < num_shims; ++h)
110             {
111                 PHOOKAPI got_hk = hook+h;
112 
113                 ok(0, "Extra shim: %s!%s for %s\n",
114                    got_hk->LibraryName, safe_str(got_hk->FunctionName), wine_dbgstr_w(current->ShimName));
115             }
116         }
117         else
118         {
119             for (h = num_shims; h < expected_shims; ++h)
120             {
121                 expect_shim_hook* expect_hk = current->hooks + h;
122 
123                 ok(0, "Missing shim: %s!%s for %s\n",
124                    expect_hk->Library, safe_str(expect_hk->Function), wine_dbgstr_w(current->ShimName));
125             }
126         }
127     }
128 }
129