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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include <windows.h> | |
6 #include <Tlhelp32.h> | |
7 #include "sandbox/win/sandbox_poc/pocdll/exports.h" | |
8 #include "sandbox/win/sandbox_poc/pocdll/utils.h" | |
9 | |
10 // This file contains the tests used to verify the security of threads and | |
11 // processes. | |
12 | |
13 void POCDLL_API TestProcesses(HANDLE log) { | |
14 HandleToFile handle2file; | |
15 FILE *output = handle2file.Translate(log, "w"); | |
16 | |
17 HANDLE snapshot = ::CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, NULL); | |
18 if (INVALID_HANDLE_VALUE == snapshot) { | |
19 fprintf(output, "[BLOCKED] Cannot list all processes on the system. " | |
20 "Error %ld\r\n", ::GetLastError()); | |
21 return; | |
22 } | |
23 | |
24 PROCESSENTRY32 process_entry = {0}; | |
25 process_entry.dwSize = sizeof(PROCESSENTRY32); | |
26 | |
27 BOOL result = ::Process32First(snapshot, &process_entry); | |
28 | |
29 while (result) { | |
30 HANDLE process = ::OpenProcess(PROCESS_VM_READ, | |
31 FALSE, // Do not inherit handle. | |
32 process_entry.th32ProcessID); | |
33 if (NULL == process) { | |
34 fprintf(output, "[BLOCKED] Found process %S:%ld but cannot open it. " | |
35 "Error %ld\r\n", | |
36 process_entry.szExeFile, | |
37 process_entry.th32ProcessID, | |
38 ::GetLastError()); | |
39 } else { | |
40 fprintf(output, "[GRANTED] Found process %S:%ld and open succeeded.\r\n", | |
41 process_entry.szExeFile, process_entry.th32ProcessID); | |
42 ::CloseHandle(process); | |
43 } | |
44 | |
45 result = ::Process32Next(snapshot, &process_entry); | |
46 } | |
47 | |
48 DWORD err_code = ::GetLastError(); | |
49 if (ERROR_NO_MORE_FILES != err_code) { | |
50 fprintf(output, "[ERROR] Error %ld while looking at the processes on " | |
51 "the system\r\n", err_code); | |
52 } | |
53 | |
54 ::CloseHandle(snapshot); | |
55 } | |
56 | |
57 void POCDLL_API TestThreads(HANDLE log) { | |
58 HandleToFile handle2file; | |
59 FILE *output = handle2file.Translate(log, "w"); | |
60 | |
61 HANDLE snapshot = ::CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, NULL); | |
62 if (INVALID_HANDLE_VALUE == snapshot) { | |
63 fprintf(output, "[BLOCKED] Cannot list all threads on the system. " | |
64 "Error %ld\r\n", ::GetLastError()); | |
65 return; | |
66 } | |
67 | |
68 THREADENTRY32 thread_entry = {0}; | |
69 thread_entry.dwSize = sizeof(THREADENTRY32); | |
70 | |
71 BOOL result = ::Thread32First(snapshot, &thread_entry); | |
72 int nb_success = 0; | |
73 int nb_failure = 0; | |
74 | |
75 while (result) { | |
76 HANDLE thread = ::OpenThread(THREAD_QUERY_INFORMATION, | |
77 FALSE, // Do not inherit handles. | |
78 thread_entry.th32ThreadID); | |
79 if (NULL == thread) { | |
80 nb_failure++; | |
81 } else { | |
82 nb_success++; | |
83 fprintf(output, "[GRANTED] Found thread %ld:%ld and able to open it.\r\n", | |
84 thread_entry.th32OwnerProcessID, | |
85 thread_entry.th32ThreadID); | |
86 ::CloseHandle(thread); | |
87 } | |
88 | |
89 result = Thread32Next(snapshot, &thread_entry); | |
90 } | |
91 | |
92 DWORD err_code = ::GetLastError(); | |
93 if (ERROR_NO_MORE_FILES != err_code) { | |
94 fprintf(output, "[ERROR] Error %ld while looking at the processes on " | |
95 "the system\r\n", err_code); | |
96 } | |
97 | |
98 fprintf(output, "[INFO] Found %d threads. Able to open %d of them\r\n", | |
99 nb_success + nb_failure, nb_success); | |
100 | |
101 ::CloseHandle(snapshot); | |
102 } | |
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