1 /*
2  * Unit test suite for process functions
3  *
4  * Copyright 2017 Michael Müller
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19  */
20 
21 #include <stdio.h>
22 
23 #include "ntdll_test.h"
24 
25 #include "windef.h"
26 #include "winbase.h"
27 
28 static NTSTATUS (WINAPI *pNtResumeProcess)(HANDLE);
29 static NTSTATUS (WINAPI *pNtSuspendProcess)(HANDLE);
30 static NTSTATUS (WINAPI *pNtSuspendThread)(HANDLE,PULONG);
31 static NTSTATUS (WINAPI *pNtResumeThread)(HANDLE);
32 
33 static void test_NtSuspendProcess(char *process_name)
34 {
35     PROCESS_INFORMATION info;
36     DEBUG_EVENT ev;
37     STARTUPINFOA startup;
38     NTSTATUS status;
39     HANDLE event;
40     char buffer[MAX_PATH];
41     ULONG count;
42     DWORD ret;
43 
44     status = pNtResumeProcess(GetCurrentProcess());
45     ok(status == STATUS_SUCCESS, "NtResumeProcess failed: %x\n", status);
46 
47     event = CreateEventA(NULL, TRUE, FALSE, "wine_suspend_event");
48     ok(!!event, "Failed to create event: %u\n", GetLastError());
49 
50     memset(&startup, 0, sizeof(startup));
51     startup.cb = sizeof(startup);
52 
53     sprintf(buffer, "%s tests/process.c dummy_process wine_suspend_event", process_name);
54     ret = CreateProcessA(NULL, buffer, NULL, NULL, FALSE, 0, NULL, NULL, &startup, &info);
55     ok(ret, "CreateProcess failed with error %u\n", GetLastError());
56 
57     ret = WaitForSingleObject(event, 500);
58     ok(ret == WAIT_OBJECT_0, "Event was not signaled: %d\n", ret);
59 
60     status = pNtSuspendProcess(info.hProcess);
61     ok(status == STATUS_SUCCESS, "NtResumeProcess failed: %x\n", status);
62 
63     ResetEvent(event);
64 
65     ret = WaitForSingleObject(event, 200);
66     ok(ret == WAIT_TIMEOUT, "Expected timeout, got: %d\n", ret);
67 
68     status = NtResumeThread(info.hThread, &count);
69     ok(status == STATUS_SUCCESS, "NtResumeProcess failed: %x\n", status);
70     ok(count == 1, "Expected count 1, got %d\n", count);
71 
72     ret = WaitForSingleObject(event, 200);
73     ok(ret == WAIT_OBJECT_0, "Event was not signaled: %d\n", ret);
74 
75     status = pNtResumeProcess(info.hProcess);
76     ok(status == STATUS_SUCCESS, "NtResumeProcess failed: %x\n", status);
77 
78     status = pNtSuspendThread(info.hThread, &count);
79     ok(status == STATUS_SUCCESS, "NtSuspendThread failed: %x\n", status);
80     ok(count == 0, "Expected count 0, got %d\n", count);
81 
82     ResetEvent(event);
83 
84     ret = WaitForSingleObject(event, 200);
85     ok(ret == WAIT_TIMEOUT, "Expected timeout, got: %d\n", ret);
86 
87     status = pNtResumeProcess(info.hProcess);
88     ok(status == STATUS_SUCCESS, "NtResumeProcess failed: %x\n", status);
89 
90     ret = WaitForSingleObject(event, 200);
91     ok(ret == WAIT_OBJECT_0, "Event was not signaled: %d\n", ret);
92 
93     status = pNtSuspendThread(info.hThread, &count);
94     ok(status == STATUS_SUCCESS, "NtSuspendThread failed: %x\n", status);
95     ok(count == 0, "Expected count 0, got %d\n", count);
96 
97     status = pNtSuspendThread(info.hThread, &count);
98     ok(status == STATUS_SUCCESS, "NtSuspendThread failed: %x\n", status);
99     ok(count == 1, "Expected count 1, got %d\n", count);
100 
101     ResetEvent(event);
102 
103     ret = WaitForSingleObject(event, 200);
104     ok(ret == WAIT_TIMEOUT, "Expected timeout, got: %d\n", ret);
105 
106     status = pNtResumeProcess(info.hProcess);
107     ok(status == STATUS_SUCCESS, "NtResumeProcess failed: %x\n", status);
108 
109     ret = WaitForSingleObject(event, 200);
110     ok(ret == WAIT_TIMEOUT, "Expected timeout, got: %d\n", ret);
111 
112     status = pNtResumeProcess(info.hProcess);
113     ok(status == STATUS_SUCCESS, "NtResumeProcess failed: %x\n", status);
114 
115     ret = WaitForSingleObject(event, 200);
116     ok(ret == WAIT_OBJECT_0, "Event was not signaled: %d\n", ret);
117 
118     ret = DebugActiveProcess(info.dwProcessId);
119     ok(ret, "Failed to debug process: %d\n", GetLastError());
120 
121     ResetEvent(event);
122 
123     ret = WaitForSingleObject(event, 200);
124     ok(ret == WAIT_TIMEOUT, "Expected timeout, got: %d\n", ret);
125 
126     for (;;)
127     {
128         ret = WaitForDebugEvent(&ev, INFINITE);
129         ok(ret, "WaitForDebugEvent failed, last error %#x.\n", GetLastError());
130         if (!ret) break;
131 
132         if (ev.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT) break;
133 
134         ret = ContinueDebugEvent(ev.dwProcessId, ev.dwThreadId, DBG_CONTINUE);
135         ok(ret, "ContinueDebugEvent failed, last error %#x.\n", GetLastError());
136         if (!ret) break;
137     }
138 
139     ResetEvent(event);
140 
141     ret = WaitForSingleObject(event, 200);
142     ok(ret == WAIT_TIMEOUT, "Expected timeout, got: %d\n", ret);
143 
144     status = pNtResumeProcess(info.hProcess);
145     ok(status == STATUS_SUCCESS, "NtResumeProcess failed: %x\n", status);
146 
147     ret = WaitForSingleObject(event, 200);
148     ok(ret == WAIT_TIMEOUT, "Expected timeout, got: %d\n", ret);
149 
150     status = NtResumeThread(info.hThread, &count);
151     ok(status == STATUS_SUCCESS, "NtResumeProcess failed: %x\n", status);
152     ok(count == 0, "Expected count 0, got %d\n", count);
153 
154     ret = WaitForSingleObject(event, 200);
155     ok(ret == WAIT_TIMEOUT, "Expected timeout, got: %d\n", ret);
156 
157     ret = ContinueDebugEvent(ev.dwProcessId, ev.dwThreadId, DBG_CONTINUE);
158     ok(ret, "ContinueDebugEvent failed, last error %#x.\n", GetLastError());
159 
160     ret = WaitForSingleObject(event, 200);
161     ok(ret == WAIT_OBJECT_0, "Event was not signaled: %d\n", ret);
162 
163     TerminateProcess(info.hProcess, 0);
164 
165     CloseHandle(info.hProcess);
166     CloseHandle(info.hThread);
167 }
168 
169 static void dummy_process(char *event_name)
170 {
171     HANDLE event = OpenEventA(EVENT_ALL_ACCESS, FALSE, event_name);
172 
173     while (TRUE)
174     {
175         SetEvent(event);
176         OutputDebugStringA("test");
177         Sleep(5);
178     }
179 }
180 
181 START_TEST(process)
182 {
183     HMODULE mod;
184     char **argv;
185     int argc;
186 
187     argc = winetest_get_mainargs(&argv);
188     if (argc >= 4 && strcmp(argv[2], "dummy_process") == 0)
189     {
190         dummy_process(argv[3]);
191         return;
192     }
193 
194     mod = GetModuleHandleA("ntdll.dll");
195     if (!mod)
196     {
197         win_skip("Not running on NT, skipping tests\n");
198         return;
199     }
200 
201     pNtResumeProcess  = (void*)GetProcAddress(mod, "NtResumeProcess");
202     pNtSuspendProcess = (void*)GetProcAddress(mod, "NtSuspendProcess");
203     pNtResumeThread   = (void*)GetProcAddress(mod, "NtResumeThread");
204     pNtSuspendThread  = (void*)GetProcAddress(mod, "NtSuspendThread");
205 
206     test_NtSuspendProcess(argv[0]);
207 }
208