392 lines
11 KiB
C++
392 lines
11 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agree to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <fcntl.h>
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#include <gtest/gtest.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <sys/statvfs.h>
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#include <sys/types.h>
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#include <time.h>
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#include <string>
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#include <android-base/file.h>
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#include <android-base/stringprintf.h>
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#include <android-base/test_utils.h>
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#include "applypatch/applypatch.h"
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#include "common/test_constants.h"
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#include "openssl/sha.h"
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#include "print_sha1.h"
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static const std::string DATA_PATH = getenv("ANDROID_DATA");
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static const std::string TESTDATA_PATH = "/recovery/testdata";
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static const std::string WORK_FS = "/data";
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static std::string sha1sum(const std::string& fname) {
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uint8_t digest[SHA_DIGEST_LENGTH];
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std::string data;
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android::base::ReadFileToString(fname, &data);
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SHA1((const uint8_t*)data.c_str(), data.size(), digest);
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return print_sha1(digest);
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}
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static void mangle_file(const std::string& fname) {
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FILE* fh = fopen(&fname[0], "w");
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int r;
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for (int i=0; i < 1024; i++) {
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r = rand();
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fwrite(&r, sizeof(short), 1, fh);
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}
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fclose(fh);
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}
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static bool file_cmp(std::string& f1, std::string& f2) {
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std::string c1;
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std::string c2;
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android::base::ReadFileToString(f1, &c1);
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android::base::ReadFileToString(f2, &c2);
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return c1 == c2;
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}
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static std::string from_testdata_base(const std::string fname) {
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return android::base::StringPrintf("%s%s%s/%s",
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&DATA_PATH[0],
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&NATIVE_TEST_PATH[0],
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&TESTDATA_PATH[0],
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&fname[0]);
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}
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class ApplyPatchTest : public ::testing::Test {
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public:
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static void SetUpTestCase() {
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// set up files
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old_file = from_testdata_base("old.file");
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new_file = from_testdata_base("new.file");
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patch_file = from_testdata_base("patch.bsdiff");
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rand_file = "/cache/applypatch_test_rand.file";
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cache_file = "/cache/saved.file";
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// write stuff to rand_file
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android::base::WriteStringToFile("hello", rand_file);
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// set up SHA constants
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old_sha1 = sha1sum(old_file);
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new_sha1 = sha1sum(new_file);
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srand(time(NULL));
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bad_sha1_a = android::base::StringPrintf("%040x", rand());
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bad_sha1_b = android::base::StringPrintf("%040x", rand());
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struct stat st;
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stat(&new_file[0], &st);
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new_size = st.st_size;
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}
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static std::string old_file;
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static std::string new_file;
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static std::string rand_file;
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static std::string cache_file;
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static std::string patch_file;
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static std::string old_sha1;
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static std::string new_sha1;
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static std::string bad_sha1_a;
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static std::string bad_sha1_b;
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static size_t new_size;
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};
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std::string ApplyPatchTest::old_file;
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std::string ApplyPatchTest::new_file;
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static void cp(std::string src, std::string tgt) {
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std::string cmd = android::base::StringPrintf("cp %s %s",
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&src[0],
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&tgt[0]);
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system(&cmd[0]);
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}
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static void backup_old() {
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cp(ApplyPatchTest::old_file, ApplyPatchTest::cache_file);
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}
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static void restore_old() {
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cp(ApplyPatchTest::cache_file, ApplyPatchTest::old_file);
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}
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class ApplyPatchCacheTest : public ApplyPatchTest {
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public:
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virtual void SetUp() {
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backup_old();
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}
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virtual void TearDown() {
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restore_old();
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}
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};
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class ApplyPatchFullTest : public ApplyPatchCacheTest {
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public:
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static void SetUpTestCase() {
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ApplyPatchTest::SetUpTestCase();
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unsigned long free_kb = FreeSpaceForFile(&WORK_FS[0]);
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ASSERT_GE(free_kb * 1024, new_size * 3 / 2);
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output_f = new TemporaryFile();
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output_loc = std::string(output_f->path);
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struct FileContents fc;
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ASSERT_EQ(0, LoadFileContents(&rand_file[0], &fc));
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Value* patch1 = new Value();
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patch1->type = VAL_BLOB;
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patch1->size = fc.data.size();
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patch1->data = static_cast<char*>(malloc(fc.data.size()));
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memcpy(patch1->data, fc.data.data(), fc.data.size());
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patches.push_back(patch1);
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ASSERT_EQ(0, LoadFileContents(&patch_file[0], &fc));
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Value* patch2 = new Value();
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patch2->type = VAL_BLOB;
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patch2->size = fc.st.st_size;
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patch2->data = static_cast<char*>(malloc(fc.data.size()));
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memcpy(patch2->data, fc.data.data(), fc.data.size());
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patches.push_back(patch2);
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}
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static void TearDownTestCase() {
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delete output_f;
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for (auto it = patches.begin(); it != patches.end(); ++it) {
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free((*it)->data);
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delete *it;
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}
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patches.clear();
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}
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static std::vector<Value*> patches;
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static TemporaryFile* output_f;
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static std::string output_loc;
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};
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class ApplyPatchDoubleCacheTest : public ApplyPatchFullTest {
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public:
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virtual void SetUp() {
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ApplyPatchCacheTest::SetUp();
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cp(cache_file, "/cache/reallysaved.file");
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}
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virtual void TearDown() {
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cp("/cache/reallysaved.file", cache_file);
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ApplyPatchCacheTest::TearDown();
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}
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};
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std::string ApplyPatchTest::rand_file;
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std::string ApplyPatchTest::patch_file;
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std::string ApplyPatchTest::cache_file;
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std::string ApplyPatchTest::old_sha1;
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std::string ApplyPatchTest::new_sha1;
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std::string ApplyPatchTest::bad_sha1_a;
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std::string ApplyPatchTest::bad_sha1_b;
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size_t ApplyPatchTest::new_size;
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std::vector<Value*> ApplyPatchFullTest::patches;
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TemporaryFile* ApplyPatchFullTest::output_f;
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std::string ApplyPatchFullTest::output_loc;
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TEST_F(ApplyPatchTest, CheckModeSingle) {
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char* s = &old_sha1[0];
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ASSERT_EQ(0, applypatch_check(&old_file[0], 1, &s));
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}
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TEST_F(ApplyPatchTest, CheckModeMultiple) {
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char* argv[3] = {
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&bad_sha1_a[0],
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&old_sha1[0],
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&bad_sha1_b[0]
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};
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ASSERT_EQ(0, applypatch_check(&old_file[0], 3, argv));
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}
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TEST_F(ApplyPatchTest, CheckModeFailure) {
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char* argv[2] = {
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&bad_sha1_a[0],
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&bad_sha1_b[0]
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};
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ASSERT_NE(0, applypatch_check(&old_file[0], 2, argv));
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}
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TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedSingle) {
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mangle_file(old_file);
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char* s = &old_sha1[0];
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ASSERT_EQ(0, applypatch_check(&old_file[0], 1, &s));
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}
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TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedMultiple) {
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mangle_file(old_file);
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char* argv[3] = {
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&bad_sha1_a[0],
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&old_sha1[0],
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&bad_sha1_b[0]
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};
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ASSERT_EQ(0, applypatch_check(&old_file[0], 3, argv));
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}
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TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedFailure) {
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mangle_file(old_file);
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char* argv[2] = {
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&bad_sha1_a[0],
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&bad_sha1_b[0]
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};
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ASSERT_NE(0, applypatch_check(&old_file[0], 2, argv));
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}
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TEST_F(ApplyPatchCacheTest, CheckCacheMissingSingle) {
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unlink(&old_file[0]);
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char* s = &old_sha1[0];
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ASSERT_EQ(0, applypatch_check(&old_file[0], 1, &s));
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}
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TEST_F(ApplyPatchCacheTest, CheckCacheMissingMultiple) {
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unlink(&old_file[0]);
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char* argv[3] = {
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&bad_sha1_a[0],
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&old_sha1[0],
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&bad_sha1_b[0]
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};
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ASSERT_EQ(0, applypatch_check(&old_file[0], 3, argv));
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}
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TEST_F(ApplyPatchCacheTest, CheckCacheMissingFailure) {
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unlink(&old_file[0]);
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char* argv[2] = {
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&bad_sha1_a[0],
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&bad_sha1_b[0]
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};
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ASSERT_NE(0, applypatch_check(&old_file[0], 2, argv));
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}
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TEST_F(ApplyPatchFullTest, ApplyInPlace) {
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std::vector<char*> sha1s;
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sha1s.push_back(&bad_sha1_a[0]);
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sha1s.push_back(&old_sha1[0]);
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int ap_result = applypatch(&old_file[0],
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"-",
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&new_sha1[0],
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new_size,
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2,
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sha1s.data(),
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patches.data(),
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nullptr);
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ASSERT_EQ(0, ap_result);
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ASSERT_TRUE(file_cmp(old_file, new_file));
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// reapply, applypatch is idempotent so it should succeed
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ap_result = applypatch(&old_file[0],
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"-",
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&new_sha1[0],
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new_size,
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2,
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sha1s.data(),
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patches.data(),
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nullptr);
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ASSERT_EQ(0, ap_result);
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ASSERT_TRUE(file_cmp(old_file, new_file));
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}
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TEST_F(ApplyPatchFullTest, ApplyInNewLocation) {
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std::vector<char*> sha1s;
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sha1s.push_back(&bad_sha1_a[0]);
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sha1s.push_back(&old_sha1[0]);
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int ap_result = applypatch(&old_file[0],
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&output_loc[0],
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&new_sha1[0],
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new_size,
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2,
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sha1s.data(),
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patches.data(),
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nullptr);
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ASSERT_EQ(0, ap_result);
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ASSERT_TRUE(file_cmp(output_loc, new_file));
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ap_result = applypatch(&old_file[0],
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&output_loc[0],
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&new_sha1[0],
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new_size,
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2,
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sha1s.data(),
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patches.data(),
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nullptr);
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ASSERT_EQ(0, ap_result);
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ASSERT_TRUE(file_cmp(output_loc, new_file));
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}
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TEST_F(ApplyPatchFullTest, ApplyCorruptedInNewLocation) {
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mangle_file(old_file);
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std::vector<char*> sha1s;
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sha1s.push_back(&bad_sha1_a[0]);
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sha1s.push_back(&old_sha1[0]);
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int ap_result = applypatch(&old_file[0],
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&output_loc[0],
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&new_sha1[0],
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new_size,
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2,
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sha1s.data(),
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patches.data(),
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nullptr);
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ASSERT_EQ(0, ap_result);
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ASSERT_TRUE(file_cmp(output_loc, new_file));
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ap_result = applypatch(&old_file[0],
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&output_loc[0],
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&new_sha1[0],
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new_size,
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2,
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sha1s.data(),
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patches.data(),
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nullptr);
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ASSERT_EQ(0, ap_result);
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ASSERT_TRUE(file_cmp(output_loc, new_file));
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}
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TEST_F(ApplyPatchDoubleCacheTest, ApplyDoubleCorruptedInNewLocation) {
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mangle_file(old_file);
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mangle_file(cache_file);
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std::vector<char*> sha1s;
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sha1s.push_back(&bad_sha1_a[0]);
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sha1s.push_back(&old_sha1[0]);
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int ap_result = applypatch(&old_file[0],
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&output_loc[0],
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&new_sha1[0],
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new_size,
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2,
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sha1s.data(),
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patches.data(),
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nullptr);
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ASSERT_NE(0, ap_result);
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ASSERT_FALSE(file_cmp(output_loc, new_file));
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ap_result = applypatch(&old_file[0],
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&output_loc[0],
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&new_sha1[0],
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new_size,
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2,
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sha1s.data(),
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patches.data(),
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nullptr);
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ASSERT_NE(0, ap_result);
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ASSERT_FALSE(file_cmp(output_loc, new_file));
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}
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