toolkit/crashreporter/google-breakpad/src/common/linux/file_id_unittest.cc@129ffea94266
toolkit/crashreporter/google-breakpad/src/common/linux/file_id_unittest.cc
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
1 // Copyright (c) 2010, Google Inc.
2 // All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are
6 // met:
7 //
8 // * Redistributions of source code must retain the above copyright
9 // notice, this list of conditions and the following disclaimer.
10 // * Redistributions in binary form must reproduce the above
11 // copyright notice, this list of conditions and the following disclaimer
12 // in the documentation and/or other materials provided with the
13 // distribution.
14 // * Neither the name of Google Inc. nor the names of its
15 // contributors may be used to endorse or promote products derived from
16 // this software without specific prior written permission.
17 //
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 // Unit tests for FileID
32 #include <elf.h>
33 #include <stdlib.h>
35 #include <string>
37 #include "common/linux/elfutils.h"
38 #include "common/linux/file_id.h"
39 #include "common/linux/safe_readlink.h"
40 #include "common/linux/synth_elf.h"
41 #include "common/test_assembler.h"
42 #include "common/tests/auto_tempdir.h"
43 #include "common/using_std_string.h"
44 #include "breakpad_googletest_includes.h"
46 using namespace google_breakpad;
47 using google_breakpad::ElfClass32;
48 using google_breakpad::ElfClass64;
49 using google_breakpad::SafeReadLink;
50 using google_breakpad::synth_elf::ELF;
51 using google_breakpad::synth_elf::Notes;
52 using google_breakpad::test_assembler::kLittleEndian;
53 using google_breakpad::test_assembler::Section;
54 using ::testing::Types;
56 namespace {
58 // Simply calling Section::Append(size, byte) produces a uninteresting pattern
59 // that tends to get hashed to 0000...0000. This populates the section with
60 // data to produce better hashes.
61 void PopulateSection(Section* section, int size, int prime_number) {
62 for (int i = 0; i < size; i++)
63 section->Append(1, (i % prime_number) % 256);
64 }
66 } // namespace
68 TEST(FileIDStripTest, StripSelf) {
69 // Calculate the File ID of this binary using
70 // FileID::ElfFileIdentifier, then make a copy of this binary,
71 // strip it, and ensure that the result is the same.
72 char exe_name[PATH_MAX];
73 ASSERT_TRUE(SafeReadLink("/proc/self/exe", exe_name));
75 // copy our binary to a temp file, and strip it
76 AutoTempDir temp_dir;
77 string templ = temp_dir.path() + "/file-id-unittest";
78 char cmdline[4096];
79 sprintf(cmdline, "cp \"%s\" \"%s\"", exe_name, templ.c_str());
80 ASSERT_EQ(0, system(cmdline)) << "Failed to execute: " << cmdline;
81 sprintf(cmdline, "chmod u+w \"%s\"", templ.c_str());
82 ASSERT_EQ(0, system(cmdline)) << "Failed to execute: " << cmdline;
83 sprintf(cmdline, "strip \"%s\"", templ.c_str());
84 ASSERT_EQ(0, system(cmdline)) << "Failed to execute: " << cmdline;
86 uint8_t identifier1[sizeof(MDGUID)];
87 uint8_t identifier2[sizeof(MDGUID)];
88 FileID fileid1(exe_name);
89 EXPECT_TRUE(fileid1.ElfFileIdentifier(identifier1));
90 FileID fileid2(templ.c_str());
91 EXPECT_TRUE(fileid2.ElfFileIdentifier(identifier2));
92 char identifier_string1[37];
93 char identifier_string2[37];
94 FileID::ConvertIdentifierToString(identifier1, identifier_string1,
95 37);
96 FileID::ConvertIdentifierToString(identifier2, identifier_string2,
97 37);
98 EXPECT_STREQ(identifier_string1, identifier_string2);
99 }
101 template<typename ElfClass>
102 class FileIDTest : public testing::Test {
103 public:
104 void GetElfContents(ELF& elf) {
105 string contents;
106 ASSERT_TRUE(elf.GetContents(&contents));
107 ASSERT_LT(0U, contents.size());
109 elfdata_v.clear();
110 elfdata_v.insert(elfdata_v.begin(), contents.begin(), contents.end());
111 elfdata = &elfdata_v[0];
112 }
114 vector<uint8_t> elfdata_v;
115 uint8_t* elfdata;
116 };
118 typedef Types<ElfClass32, ElfClass64> ElfClasses;
120 TYPED_TEST_CASE(FileIDTest, ElfClasses);
122 TYPED_TEST(FileIDTest, ElfClass) {
123 uint8_t identifier[sizeof(MDGUID)];
124 const char expected_identifier_string[] =
125 "80808080-8080-0000-0000-008080808080";
126 char identifier_string[sizeof(expected_identifier_string)];
127 const size_t kTextSectionSize = 128;
129 ELF elf(EM_386, TypeParam::kClass, kLittleEndian);
130 Section text(kLittleEndian);
131 for (size_t i = 0; i < kTextSectionSize; ++i) {
132 text.D8(i * 3);
133 }
134 elf.AddSection(".text", text, SHT_PROGBITS);
135 elf.Finish();
136 this->GetElfContents(elf);
138 EXPECT_TRUE(FileID::ElfFileIdentifierFromMappedFile(this->elfdata,
139 identifier));
141 FileID::ConvertIdentifierToString(identifier, identifier_string,
142 sizeof(identifier_string));
143 EXPECT_STREQ(expected_identifier_string, identifier_string);
144 }
146 TYPED_TEST(FileIDTest, BuildID) {
147 const uint8_t kExpectedIdentifier[sizeof(MDGUID)] =
148 {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
149 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F};
150 char expected_identifier_string[] =
151 "00000000-0000-0000-0000-000000000000";
152 FileID::ConvertIdentifierToString(kExpectedIdentifier,
153 expected_identifier_string,
154 sizeof(expected_identifier_string));
156 uint8_t identifier[sizeof(MDGUID)];
157 char identifier_string[sizeof(expected_identifier_string)];
159 ELF elf(EM_386, TypeParam::kClass, kLittleEndian);
160 Section text(kLittleEndian);
161 text.Append(4096, 0);
162 elf.AddSection(".text", text, SHT_PROGBITS);
163 Notes notes(kLittleEndian);
164 notes.AddNote(NT_GNU_BUILD_ID, "GNU", kExpectedIdentifier,
165 sizeof(kExpectedIdentifier));
166 elf.AddSection(".note.gnu.build-id", notes, SHT_NOTE);
167 elf.Finish();
168 this->GetElfContents(elf);
170 EXPECT_TRUE(FileID::ElfFileIdentifierFromMappedFile(this->elfdata,
171 identifier));
173 FileID::ConvertIdentifierToString(identifier, identifier_string,
174 sizeof(identifier_string));
175 EXPECT_STREQ(expected_identifier_string, identifier_string);
176 }
178 TYPED_TEST(FileIDTest, BuildIDPH) {
179 const uint8_t kExpectedIdentifier[sizeof(MDGUID)] =
180 {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
181 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F};
182 char expected_identifier_string[] =
183 "00000000-0000-0000-0000-000000000000";
184 FileID::ConvertIdentifierToString(kExpectedIdentifier,
185 expected_identifier_string,
186 sizeof(expected_identifier_string));
188 uint8_t identifier[sizeof(MDGUID)];
189 char identifier_string[sizeof(expected_identifier_string)];
191 ELF elf(EM_386, TypeParam::kClass, kLittleEndian);
192 Section text(kLittleEndian);
193 text.Append(4096, 0);
194 elf.AddSection(".text", text, SHT_PROGBITS);
195 Notes notes(kLittleEndian);
196 notes.AddNote(0, "Linux",
197 reinterpret_cast<const uint8_t *>("\0x42\0x02\0\0"), 4);
198 notes.AddNote(NT_GNU_BUILD_ID, "GNU", kExpectedIdentifier,
199 sizeof(kExpectedIdentifier));
200 int note_idx = elf.AddSection(".note", notes, SHT_NOTE);
201 elf.AddSegment(note_idx, note_idx, PT_NOTE);
202 elf.Finish();
203 this->GetElfContents(elf);
205 EXPECT_TRUE(FileID::ElfFileIdentifierFromMappedFile(this->elfdata,
206 identifier));
208 FileID::ConvertIdentifierToString(identifier, identifier_string,
209 sizeof(identifier_string));
210 EXPECT_STREQ(expected_identifier_string, identifier_string);
211 }
213 // Test to make sure two files with different text sections produce
214 // different hashes when not using a build id.
215 TYPED_TEST(FileIDTest, UniqueHashes) {
216 char identifier_string_1[] =
217 "00000000-0000-0000-0000-000000000000";
218 char identifier_string_2[] =
219 "00000000-0000-0000-0000-000000000000";
220 uint8_t identifier_1[sizeof(MDGUID)];
221 uint8_t identifier_2[sizeof(MDGUID)];
223 {
224 ELF elf1(EM_386, TypeParam::kClass, kLittleEndian);
225 Section foo_1(kLittleEndian);
226 PopulateSection(&foo_1, 32, 5);
227 elf1.AddSection(".foo", foo_1, SHT_PROGBITS);
228 Section text_1(kLittleEndian);
229 PopulateSection(&text_1, 4096, 17);
230 elf1.AddSection(".text", text_1, SHT_PROGBITS);
231 elf1.Finish();
232 this->GetElfContents(elf1);
233 }
235 EXPECT_TRUE(FileID::ElfFileIdentifierFromMappedFile(this->elfdata,
236 identifier_1));
237 FileID::ConvertIdentifierToString(identifier_1, identifier_string_1,
238 sizeof(identifier_string_1));
240 {
241 ELF elf2(EM_386, TypeParam::kClass, kLittleEndian);
242 Section text_2(kLittleEndian);
243 Section foo_2(kLittleEndian);
244 PopulateSection(&foo_2, 32, 5);
245 elf2.AddSection(".foo", foo_2, SHT_PROGBITS);
246 PopulateSection(&text_2, 4096, 31);
247 elf2.AddSection(".text", text_2, SHT_PROGBITS);
248 elf2.Finish();
249 this->GetElfContents(elf2);
250 }
252 EXPECT_TRUE(FileID::ElfFileIdentifierFromMappedFile(this->elfdata,
253 identifier_2));
254 FileID::ConvertIdentifierToString(identifier_2, identifier_string_2,
255 sizeof(identifier_string_2));
257 EXPECT_STRNE(identifier_string_1, identifier_string_2);
258 }
