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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agree to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <vector>
#include <android-base/file.h>
#include <android-base/logging.h>
#include <android-base/strings.h>
#include <android-base/test_utils.h>
#include <bsdiff/bsdiff.h>
#include <gtest/gtest.h>
#include <openssl/sha.h>
#include "applypatch/applypatch_modes.h"
#include "common/test_constants.h"
#include "otautil/paths.h"
#include "otautil/print_sha1.h"
#include "otautil/sysutil.h"
using namespace std::string_literals;
// Loads a given partition and returns a string of form "EMMC:name:size:hash".
static std::string GetEmmcTargetString(const std::string& filename,
const std::string& display_name = "") {
std::string data;
if (!android::base::ReadFileToString(filename, &data)) {
PLOG(ERROR) << "Failed to read " << filename;
return {};
}
uint8_t digest[SHA_DIGEST_LENGTH];
SHA1(reinterpret_cast<const uint8_t*>(data.c_str()), data.size(), digest);
return "EMMC:"s + (display_name.empty() ? filename : display_name) + ":" +
std::to_string(data.size()) + ":" + print_sha1(digest);
}
class ApplyPatchModesTest : public ::testing::Test {
protected:
void SetUp() override {
source = GetEmmcTargetString(from_testdata_base("boot.img"));
ASSERT_FALSE(source.empty());
std::string recovery_file = from_testdata_base("recovery.img");
recovery = GetEmmcTargetString(recovery_file);
ASSERT_FALSE(recovery.empty());
ASSERT_TRUE(android::base::WriteStringToFile("", patched_file_.path));
target = GetEmmcTargetString(recovery_file, patched_file_.path);
ASSERT_FALSE(target.empty());
Paths::Get().set_cache_temp_source(cache_source_.path);
}
std::string source;
std::string target;
std::string recovery;
private:
TemporaryFile cache_source_;
TemporaryFile patched_file_;
};
static int InvokeApplyPatchModes(const std::vector<std::string>& args) {
auto args_to_call = StringVectorToNullTerminatedArray(args);
return applypatch_modes(args_to_call.size() - 1, args_to_call.data());
}
static void VerifyPatchedTarget(const std::string& target) {
std::vector<std::string> pieces = android::base::Split(target, ":");
ASSERT_EQ(4, pieces.size());
ASSERT_EQ("EMMC", pieces[0]);
std::string patched_emmc = GetEmmcTargetString(pieces[1]);
ASSERT_FALSE(patched_emmc.empty());
ASSERT_EQ(target, patched_emmc);
}
TEST_F(ApplyPatchModesTest, InvalidArgs) {
// At least two args (including the filename).
ASSERT_EQ(2, InvokeApplyPatchModes({ "applypatch" }));
// Unrecognized args.
ASSERT_EQ(2, InvokeApplyPatchModes({ "applypatch", "-x" }));
}
TEST_F(ApplyPatchModesTest, PatchModeEmmcTarget) {
std::vector<std::string> args{
"applypatch",
"--bonus",
from_testdata_base("bonus.file"),
"--patch",
from_testdata_base("recovery-from-boot.p"),
"--target",
target,
"--source",
source,
};
ASSERT_EQ(0, InvokeApplyPatchModes(args));
VerifyPatchedTarget(target);
}
// Tests patching an eMMC target without a separate bonus file (i.e. recovery-from-boot patch has
// everything).
TEST_F(ApplyPatchModesTest, PatchModeEmmcTargetWithoutBonusFile) {
std::vector<std::string> args{
"applypatch", "--patch", from_testdata_base("recovery-from-boot-with-bonus.p"),
"--target", target, "--source",
source,
};
ASSERT_EQ(0, InvokeApplyPatchModes(args));
VerifyPatchedTarget(target);
}
// Ensures that applypatch works with a bsdiff based recovery-from-boot.p.
TEST_F(ApplyPatchModesTest, PatchModeEmmcTargetWithBsdiffPatch) {
// Generate the bsdiff patch of recovery-from-boot.p.
std::string src_content;
ASSERT_TRUE(android::base::ReadFileToString(from_testdata_base("boot.img"), &src_content));
std::string tgt_content;
ASSERT_TRUE(android::base::ReadFileToString(from_testdata_base("recovery.img"), &tgt_content));
TemporaryFile patch_file;
ASSERT_EQ(0,
bsdiff::bsdiff(reinterpret_cast<const uint8_t*>(src_content.data()), src_content.size(),
reinterpret_cast<const uint8_t*>(tgt_content.data()), tgt_content.size(),
patch_file.path, nullptr));
std::vector<std::string> args{
"applypatch", "--patch", patch_file.path, "--target", target, "--source", source,
};
ASSERT_EQ(0, InvokeApplyPatchModes(args));
VerifyPatchedTarget(target);
}
TEST_F(ApplyPatchModesTest, PatchModeInvalidArgs) {
// Invalid bonus file.
std::vector<std::string> args{
"applypatch", "--bonus", "/doesntexist", "--patch", from_testdata_base("recovery-from-boot.p"),
"--target", target, "--source", source,
};
ASSERT_NE(0, InvokeApplyPatchModes(args));
// With bonus file, but missing args.
ASSERT_NE(0,
InvokeApplyPatchModes({ "applypatch", "--bonus", from_testdata_base("bonus.file") }));
}
TEST_F(ApplyPatchModesTest, FlashMode) {
std::vector<std::string> args{
"applypatch", "--flash", from_testdata_base("recovery.img"), "--target", target,
};
ASSERT_EQ(0, InvokeApplyPatchModes(args));
VerifyPatchedTarget(target);
}
TEST_F(ApplyPatchModesTest, FlashModeInvalidArgs) {
std::vector<std::string> args{
"applypatch", "--bonus", from_testdata_base("bonus.file"), "--flash", source,
"--target", target,
};
ASSERT_NE(0, InvokeApplyPatchModes(args));
}
TEST_F(ApplyPatchModesTest, CheckMode) {
ASSERT_EQ(0, InvokeApplyPatchModes({ "applypatch", "--check", recovery }));
ASSERT_EQ(0, InvokeApplyPatchModes({ "applypatch", "--check", source }));
}
TEST_F(ApplyPatchModesTest, CheckModeInvalidArgs) {
ASSERT_EQ(2, InvokeApplyPatchModes({ "applypatch", "--check" }));
}
TEST_F(ApplyPatchModesTest, CheckModeNonEmmcTarget) {
ASSERT_NE(0, InvokeApplyPatchModes({ "applypatch", "--check", from_testdata_base("boot.img") }));
}
TEST_F(ApplyPatchModesTest, ShowLicenses) {
ASSERT_EQ(0, InvokeApplyPatchModes({ "applypatch", "--license" }));
}
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