The Tor Browser: toolkit/crashreporter/google-breakpad/src/common/linux/file_id

toolkit/crashreporter/google-breakpad/src/common/linux/file_id_unittest.cc@129ffea94266 (annotated)

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.

 // Copyright (c) 2010, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 // copyright notice, this list of conditions and the following disclaimer
 // in the documentation and/or other materials provided with the
 // distribution.
 //     * Neither the name of Google Inc. nor the names of its
 // contributors may be used to endorse or promote products derived from
 // this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 // Unit tests for FileID
 #include <elf.h>
 #include <stdlib.h>
 #include <string>
 #include "common/linux/elfutils.h"
 #include "common/linux/file_id.h"
 #include "common/linux/safe_readlink.h"
 #include "common/linux/synth_elf.h"
 #include "common/test_assembler.h"
 #include "common/tests/auto_tempdir.h"
 #include "common/using_std_string.h"
 #include "breakpad_googletest_includes.h"
 using namespace google_breakpad;
 using google_breakpad::ElfClass32;
 using google_breakpad::ElfClass64;
 using google_breakpad::SafeReadLink;
 using google_breakpad::synth_elf::ELF;
 using google_breakpad::synth_elf::Notes;
 using google_breakpad::test_assembler::kLittleEndian;
 using google_breakpad::test_assembler::Section;
 using ::testing::Types;
 namespace {
 // Simply calling Section::Append(size, byte) produces a uninteresting pattern
 // that tends to get hashed to 0000...0000. This populates the section with
 // data to produce better hashes.
 void PopulateSection(Section* section, int size, int prime_number) {
   for (int i = 0; i < size; i++)
     section->Append(1, (i % prime_number) % 256);
 }
 }  // namespace
 TEST(FileIDStripTest, StripSelf) {
   // Calculate the File ID of this binary using
   // FileID::ElfFileIdentifier, then make a copy of this binary,
   // strip it, and ensure that the result is the same.
   char exe_name[PATH_MAX];
   ASSERT_TRUE(SafeReadLink("/proc/self/exe", exe_name));
   // copy our binary to a temp file, and strip it
   AutoTempDir temp_dir;
   string templ = temp_dir.path() + "/file-id-unittest";
   char cmdline[4096];
   sprintf(cmdline, "cp \"%s\" \"%s\"", exe_name, templ.c_str());
   ASSERT_EQ(0, system(cmdline)) << "Failed to execute: " << cmdline;
   sprintf(cmdline, "chmod u+w \"%s\"", templ.c_str());
   ASSERT_EQ(0, system(cmdline)) << "Failed to execute: " << cmdline;
   sprintf(cmdline, "strip \"%s\"", templ.c_str());
   ASSERT_EQ(0, system(cmdline)) << "Failed to execute: " << cmdline;
   uint8_t identifier1[sizeof(MDGUID)];
   uint8_t identifier2[sizeof(MDGUID)];
   FileID fileid1(exe_name);
   EXPECT_TRUE(fileid1.ElfFileIdentifier(identifier1));
   FileID fileid2(templ.c_str());
   EXPECT_TRUE(fileid2.ElfFileIdentifier(identifier2));
   char identifier_string1[37];
   char identifier_string2[37];
   FileID::ConvertIdentifierToString(identifier1, identifier_string1,
 );
   FileID::ConvertIdentifierToString(identifier2, identifier_string2,
 );
   EXPECT_STREQ(identifier_string1, identifier_string2);
 }
 template<typename ElfClass>
 class FileIDTest : public testing::Test {
 public:
   void GetElfContents(ELF& elf) {
     string contents;
     ASSERT_TRUE(elf.GetContents(&contents));
     ASSERT_LT(0U, contents.size());
     elfdata_v.clear();
     elfdata_v.insert(elfdata_v.begin(), contents.begin(), contents.end());
     elfdata = &elfdata_v[0];
   }
   vector<uint8_t> elfdata_v;
   uint8_t* elfdata;
 };
 typedef Types<ElfClass32, ElfClass64> ElfClasses;
 TYPED_TEST_CASE(FileIDTest, ElfClasses);
 TYPED_TEST(FileIDTest, ElfClass) {
   uint8_t identifier[sizeof(MDGUID)];
   const char expected_identifier_string[] =
       "80808080-8080-0000-0000-008080808080";
   char identifier_string[sizeof(expected_identifier_string)];
   const size_t kTextSectionSize = 128;
   ELF elf(EM_386, TypeParam::kClass, kLittleEndian);
   Section text(kLittleEndian);
   for (size_t i = 0; i < kTextSectionSize; ++i) {
     text.D8(i * 3);
   }
   elf.AddSection(".text", text, SHT_PROGBITS);
   elf.Finish();
   this->GetElfContents(elf);
   EXPECT_TRUE(FileID::ElfFileIdentifierFromMappedFile(this->elfdata,
                                                       identifier));
   FileID::ConvertIdentifierToString(identifier, identifier_string,
                                     sizeof(identifier_string));
   EXPECT_STREQ(expected_identifier_string, identifier_string);
 }
 TYPED_TEST(FileIDTest, BuildID) {
   const uint8_t kExpectedIdentifier[sizeof(MDGUID)] =
     {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
 x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F};
   char expected_identifier_string[] =
     "00000000-0000-0000-0000-000000000000";
   FileID::ConvertIdentifierToString(kExpectedIdentifier,
                                     expected_identifier_string,
                                     sizeof(expected_identifier_string));
   uint8_t identifier[sizeof(MDGUID)];
   char identifier_string[sizeof(expected_identifier_string)];
   ELF elf(EM_386, TypeParam::kClass, kLittleEndian);
   Section text(kLittleEndian);
   text.Append(4096, 0);
   elf.AddSection(".text", text, SHT_PROGBITS);
   Notes notes(kLittleEndian);
   notes.AddNote(NT_GNU_BUILD_ID, "GNU", kExpectedIdentifier,
                 sizeof(kExpectedIdentifier));
   elf.AddSection(".note.gnu.build-id", notes, SHT_NOTE);
   elf.Finish();
   this->GetElfContents(elf);
   EXPECT_TRUE(FileID::ElfFileIdentifierFromMappedFile(this->elfdata,
                                                       identifier));
   FileID::ConvertIdentifierToString(identifier, identifier_string,
                                     sizeof(identifier_string));
   EXPECT_STREQ(expected_identifier_string, identifier_string);
 }
 TYPED_TEST(FileIDTest, BuildIDPH) {
   const uint8_t kExpectedIdentifier[sizeof(MDGUID)] =
     {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
 x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F};
   char expected_identifier_string[] =
     "00000000-0000-0000-0000-000000000000";
   FileID::ConvertIdentifierToString(kExpectedIdentifier,
                                     expected_identifier_string,
                                     sizeof(expected_identifier_string));
   uint8_t identifier[sizeof(MDGUID)];
   char identifier_string[sizeof(expected_identifier_string)];
   ELF elf(EM_386, TypeParam::kClass, kLittleEndian);
   Section text(kLittleEndian);
   text.Append(4096, 0);
   elf.AddSection(".text", text, SHT_PROGBITS);
   Notes notes(kLittleEndian);
   notes.AddNote(0, "Linux",
                 reinterpret_cast<const uint8_t *>("\0x42\0x02\0\0"), 4);
   notes.AddNote(NT_GNU_BUILD_ID, "GNU", kExpectedIdentifier,
                 sizeof(kExpectedIdentifier));
   int note_idx = elf.AddSection(".note", notes, SHT_NOTE);
   elf.AddSegment(note_idx, note_idx, PT_NOTE);
   elf.Finish();
   this->GetElfContents(elf);
   EXPECT_TRUE(FileID::ElfFileIdentifierFromMappedFile(this->elfdata,
                                                       identifier));
   FileID::ConvertIdentifierToString(identifier, identifier_string,
                                     sizeof(identifier_string));
   EXPECT_STREQ(expected_identifier_string, identifier_string);
 }
 // Test to make sure two files with different text sections produce
 // different hashes when not using a build id.
 TYPED_TEST(FileIDTest, UniqueHashes) {
   char identifier_string_1[] =
     "00000000-0000-0000-0000-000000000000";
   char identifier_string_2[] =
     "00000000-0000-0000-0000-000000000000";
   uint8_t identifier_1[sizeof(MDGUID)];
   uint8_t identifier_2[sizeof(MDGUID)];
   {
     ELF elf1(EM_386, TypeParam::kClass, kLittleEndian);
     Section foo_1(kLittleEndian);
     PopulateSection(&foo_1, 32, 5);
     elf1.AddSection(".foo", foo_1, SHT_PROGBITS);
     Section text_1(kLittleEndian);
     PopulateSection(&text_1, 4096, 17);
     elf1.AddSection(".text", text_1, SHT_PROGBITS);
     elf1.Finish();
     this->GetElfContents(elf1);
   }
   EXPECT_TRUE(FileID::ElfFileIdentifierFromMappedFile(this->elfdata,
                                                       identifier_1));
   FileID::ConvertIdentifierToString(identifier_1, identifier_string_1,
                                     sizeof(identifier_string_1));
   {
     ELF elf2(EM_386, TypeParam::kClass, kLittleEndian);
     Section text_2(kLittleEndian);
     Section foo_2(kLittleEndian);
     PopulateSection(&foo_2, 32, 5);
     elf2.AddSection(".foo", foo_2, SHT_PROGBITS);
     PopulateSection(&text_2, 4096, 31);
     elf2.AddSection(".text", text_2, SHT_PROGBITS);
     elf2.Finish();
     this->GetElfContents(elf2);
   }
   EXPECT_TRUE(FileID::ElfFileIdentifierFromMappedFile(this->elfdata,
                                                       identifier_2));
   FileID::ConvertIdentifierToString(identifier_2, identifier_string_2,
                                     sizeof(identifier_string_2));
   EXPECT_STRNE(identifier_string_1, identifier_string_2);
 }

The Tor Browser / annotate

toolkit/crashreporter/google-breakpad/src/common/linux/file_id_unittest.cc@129ffea94266 (annotated)

toolkit/crashreporter/google-breakpad/src/common/linux/file_id_unittest.cc