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The Android Open Source Projectc24a8e62009-03-03 19:28:42 -08001/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
xunchang24788852019-03-22 16:08:52 -070017#include "install/install.h"
Tao Bao20c581e2016-12-28 20:55:51 -080018
Doug Zongkerb2ee9202009-06-04 10:24:53 -070019#include <ctype.h>
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080020#include <errno.h>
21#include <fcntl.h>
Alex Deymo4e29ce02016-08-12 13:43:04 -070022#include <inttypes.h>
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080023#include <limits.h>
Elliott Hughes26dbad22015-01-28 12:09:05 -080024#include <string.h>
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080025#include <sys/stat.h>
Doug Zongkerb2ee9202009-06-04 10:24:53 -070026#include <sys/wait.h>
27#include <unistd.h>
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080028
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -070029#include <algorithm>
Tianjie Xu37957102017-06-07 17:59:55 -070030#include <atomic>
Elliott Hughes8febafa2016-04-13 16:39:56 -070031#include <chrono>
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -070032#include <condition_variable>
Tianjie Xucd8faf72019-08-06 12:32:05 -070033#include <filesystem>
Tao Bao5e535012017-03-16 17:37:38 -070034#include <functional>
Alex Deymo4344d632016-08-03 21:03:53 -070035#include <limits>
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -070036#include <mutex>
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -070037#include <thread>
Tao Bao71e3e092016-02-02 14:02:27 -080038#include <vector>
39
Tianjie Xue16e7992016-09-09 10:55:44 -070040#include <android-base/file.h>
41#include <android-base/logging.h>
Tao Bao20c581e2016-12-28 20:55:51 -080042#include <android-base/parsedouble.h>
Tianjie Xub0ddae52016-06-08 14:30:04 -070043#include <android-base/parseint.h>
Tao Baoefc35592017-01-08 22:45:47 -080044#include <android-base/properties.h>
Tianjie Xu16255832016-04-30 11:49:59 -070045#include <android-base/stringprintf.h>
46#include <android-base/strings.h>
Tao Baocf60a442018-06-18 14:56:20 -070047#include <android-base/unique_fd.h>
Tianjie Xu16255832016-04-30 11:49:59 -070048
LuK133758ec7322023-08-04 22:09:53 +020049#include "bootloader_message/bootloader_message.h"
aleastof9a5f052021-01-17 20:31:22 +010050#include "install/snapshot_utils.h"
Kelvin Zhang33c62fc2021-05-14 17:15:50 -040051#include "install/spl_check.h"
xunchang316e9712019-04-12 16:22:15 -070052#include "install/wipe_data.h"
Kelvin Zhang170ad592023-03-14 15:02:53 -070053#include "install/wipe_device.h"
Tao Bao1fc5bf32017-10-06 07:43:41 -070054#include "otautil/error_code.h"
Jacky Liu068329e2021-12-21 00:32:50 +080055#include "otautil/package.h"
Tao Bao641fa972018-04-25 18:59:40 -070056#include "otautil/paths.h"
Tao Bao17054c02018-05-03 22:41:23 -070057#include "otautil/sysutil.h"
Jacky Liu068329e2021-12-21 00:32:50 +080058#include "otautil/verifier.h"
xunchang24788852019-03-22 16:08:52 -070059#include "private/setup_commands.h"
Tom Marshall7cb5d3e2018-06-21 00:57:24 +020060#include "recovery_ui/device.h"
Tianjie Xu8f397302018-08-20 13:40:47 -070061#include "recovery_ui/ui.h"
Tao Baoe3f09a72019-10-01 11:55:36 -070062#include "recovery_utils/roots.h"
63#include "recovery_utils/thermalutil.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080064
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -070065using namespace std::chrono_literals;
66
LuK1337561cd9e2023-07-29 11:16:41 +020067bool ask_to_ab_reboot(Device* device);
Tom Marshall7cb5d3e2018-06-21 00:57:24 +020068bool ask_to_continue_unverified(Device* device);
Alessandro Astone4d822dd2020-03-17 23:06:52 +010069bool ask_to_continue_downgrade(Device* device);
Tom Marshall7cb5d3e2018-06-21 00:57:24 +020070
xunchang24788852019-03-22 16:08:52 -070071static constexpr int kRecoveryApiVersion = 3;
Tianjie Xu164c60a2019-05-15 13:59:39 -070072// We define RECOVERY_API_VERSION in Android.mk, which will be picked up by build system and packed
73// into target_files.zip. Assert the version defined in code and in Android.mk are consistent.
xunchang24788852019-03-22 16:08:52 -070074static_assert(kRecoveryApiVersion == RECOVERY_API_VERSION, "Mismatching recovery API versions.");
75
Doug Zongker74406302011-10-28 15:13:10 -070076// Default allocation of progress bar segments to operations
Tao Bao20c581e2016-12-28 20:55:51 -080077static constexpr int VERIFICATION_PROGRESS_TIME = 60;
78static constexpr float VERIFICATION_PROGRESS_FRACTION = 0.25;
Kelvin Zhange1ae78c2020-06-26 11:06:00 -040079// The charater used to separate dynamic fingerprints. e.x. sargo|aosp-sargo
Alessandro Astone2b500942021-11-01 17:47:07 +010080#define FINGERPRING_SEPARATOR "|"
Kelvin Zhang2a8c6e02023-03-14 12:27:33 -070081static constexpr auto&& RELEASE_KEYS_TAG = "release-keys";
Kelvin Zhang170ad592023-03-14 15:02:53 -070082// If brick packages are smaller than |MEMORY_PACKAGE_LIMIT|, read the entire package into memory
83static constexpr size_t MEMORY_PACKAGE_LIMIT = 1024 * 1024;
Kelvin Zhang2a8c6e02023-03-14 12:27:33 -070084
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -070085static std::condition_variable finish_log_temperature;
Kelvin Zhange1ae78c2020-06-26 11:06:00 -040086static bool isInStringList(const std::string& target_token, const std::string& str_list,
87 const std::string& deliminator);
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -070088
Tianjie Xu93b5bf22018-10-25 10:39:01 -070089bool ReadMetadataFromPackage(ZipArchiveHandle zip, std::map<std::string, std::string>* metadata) {
Tao Bao8a7afcc2017-04-18 22:05:50 -070090 CHECK(metadata != nullptr);
Tianjie Xub0ddae52016-06-08 14:30:04 -070091
Tao Bao8a7afcc2017-04-18 22:05:50 -070092 static constexpr const char* METADATA_PATH = "META-INF/com/android/metadata";
Kelvin Zhang4f811302020-09-16 14:06:12 -040093 ZipEntry64 entry;
Elliott Hughesa86dddb2019-05-03 22:52:37 -070094 if (FindEntry(zip, METADATA_PATH, &entry) != 0) {
Tao Bao8a7afcc2017-04-18 22:05:50 -070095 return false;
96 }
97
98 uint32_t length = entry.uncompressed_length;
Tianjie Xu93b5bf22018-10-25 10:39:01 -070099 std::string metadata_string(length, '\0');
100 int32_t err =
101 ExtractToMemory(zip, &entry, reinterpret_cast<uint8_t*>(&metadata_string[0]), length);
Tao Bao8a7afcc2017-04-18 22:05:50 -0700102 if (err != 0) {
103 LOG(ERROR) << "Failed to extract " << METADATA_PATH << ": " << ErrorCodeString(err);
104 return false;
105 }
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700106
107 for (const std::string& line : android::base::Split(metadata_string, "\n")) {
108 size_t eq = line.find('=');
109 if (eq != std::string::npos) {
110 metadata->emplace(android::base::Trim(line.substr(0, eq)),
111 android::base::Trim(line.substr(eq + 1)));
112 }
113 }
114
Tao Bao8a7afcc2017-04-18 22:05:50 -0700115 return true;
Yabin Cui6faf0262016-06-09 14:09:39 -0700116}
117
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700118// Gets the value for the given key in |metadata|. Returns an emtpy string if the key isn't
119// present.
120static std::string get_value(const std::map<std::string, std::string>& metadata,
121 const std::string& key) {
122 const auto& it = metadata.find(key);
123 return (it == metadata.end()) ? "" : it->second;
124}
125
126static std::string OtaTypeToString(OtaType type) {
127 switch (type) {
128 case OtaType::AB:
129 return "AB";
130 case OtaType::BLOCK:
131 return "BLOCK";
132 case OtaType::BRICK:
133 return "BRICK";
Tao Bao8a7afcc2017-04-18 22:05:50 -0700134 }
Tianjie Xub0ddae52016-06-08 14:30:04 -0700135}
136
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700137// Read the build.version.incremental of src/tgt from the metadata and log it to last_install.
138static void ReadSourceTargetBuild(const std::map<std::string, std::string>& metadata,
139 std::vector<std::string>* log_buffer) {
140 // Examples of the pre-build and post-build strings in metadata:
141 // pre-build-incremental=2943039
142 // post-build-incremental=2951741
143 auto source_build = get_value(metadata, "pre-build-incremental");
144 if (!source_build.empty()) {
145 log_buffer->push_back("source_build: " + source_build);
146 }
147
148 auto target_build = get_value(metadata, "post-build-incremental");
149 if (!target_build.empty()) {
150 log_buffer->push_back("target_build: " + target_build);
151 }
152}
153
154// Checks the build version, fingerprint and timestamp in the metadata of the A/B package.
155// Downgrading is not allowed unless explicitly enabled in the package and only for
Tao Baocf60a442018-06-18 14:56:20 -0700156// incremental packages.
Alessandro Astone4d822dd2020-03-17 23:06:52 +0100157static bool CheckAbSpecificMetadata(const std::map<std::string, std::string>& metadata,
158 RecoveryUI* ui) {
Tao Baoefc35592017-01-08 22:45:47 -0800159 // Incremental updates should match the current build.
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700160 auto device_pre_build = android::base::GetProperty("ro.build.version.incremental", "");
161 auto pkg_pre_build = get_value(metadata, "pre-build-incremental");
162 if (!pkg_pre_build.empty() && pkg_pre_build != device_pre_build) {
163 LOG(ERROR) << "Package is for source build " << pkg_pre_build << " but expected "
164 << device_pre_build;
Tao Bao36c72762019-04-30 00:25:41 -0700165 return false;
Tao Baoefc35592017-01-08 22:45:47 -0800166 }
Alex Deymo4344d632016-08-03 21:03:53 -0700167
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700168 auto device_fingerprint = android::base::GetProperty("ro.build.fingerprint", "");
169 auto pkg_pre_build_fingerprint = get_value(metadata, "pre-build");
Kelvin Zhange1ae78c2020-06-26 11:06:00 -0400170 if (!pkg_pre_build_fingerprint.empty() &&
171 !isInStringList(device_fingerprint, pkg_pre_build_fingerprint, FINGERPRING_SEPARATOR)) {
Tao Baoefc35592017-01-08 22:45:47 -0800172 LOG(ERROR) << "Package is for source build " << pkg_pre_build_fingerprint << " but expected "
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700173 << device_fingerprint;
Tao Bao36c72762019-04-30 00:25:41 -0700174 return false;
Tao Baoefc35592017-01-08 22:45:47 -0800175 }
Alex Deymo4344d632016-08-03 21:03:53 -0700176
Tao Baoefc35592017-01-08 22:45:47 -0800177 // Check for downgrade version.
Alessandro Astone4d822dd2020-03-17 23:06:52 +0100178 bool undeclared_downgrade = false;
jhenrique096da11cc2021-10-10 15:33:05 -0300179 /*int64_t build_timestamp =
Tao Baoefc35592017-01-08 22:45:47 -0800180 android::base::GetIntProperty("ro.build.date.utc", std::numeric_limits<int64_t>::max());
181 int64_t pkg_post_timestamp = 0;
182 // We allow to full update to the same version we are running, in case there
183 // is a problem with the current copy of that version.
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700184 auto pkg_post_timestamp_string = get_value(metadata, "post-timestamp");
185 if (pkg_post_timestamp_string.empty() ||
186 !android::base::ParseInt(pkg_post_timestamp_string, &pkg_post_timestamp) ||
Tao Baoefc35592017-01-08 22:45:47 -0800187 pkg_post_timestamp < build_timestamp) {
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700188 if (get_value(metadata, "ota-downgrade") != "yes") {
Tao Baoefc35592017-01-08 22:45:47 -0800189 LOG(ERROR) << "Update package is older than the current build, expected a build "
190 "newer than timestamp "
191 << build_timestamp << " but package has timestamp " << pkg_post_timestamp
192 << " and downgrade not allowed.";
Alessandro Astone4d822dd2020-03-17 23:06:52 +0100193 undeclared_downgrade = true;
194 } else if (pkg_pre_build_fingerprint.empty()) {
Tao Baoefc35592017-01-08 22:45:47 -0800195 LOG(ERROR) << "Downgrade package must have a pre-build version set, not allowed.";
Alessandro Astone4d822dd2020-03-17 23:06:52 +0100196 undeclared_downgrade = true;
Tao Baoefc35592017-01-08 22:45:47 -0800197 }
jhenrique096da11cc2021-10-10 15:33:05 -0300198 }*/
Tao Baoefc35592017-01-08 22:45:47 -0800199
Alessandro Astone4d822dd2020-03-17 23:06:52 +0100200 if (undeclared_downgrade &&
201 !(ui->IsTextVisible() && ask_to_continue_downgrade(ui->GetDevice()))) {
202 return false;
203 }
204
Tao Bao36c72762019-04-30 00:25:41 -0700205 return true;
Alex Deymo4344d632016-08-03 21:03:53 -0700206}
207
Alessandro Astone4d822dd2020-03-17 23:06:52 +0100208bool CheckPackageMetadata(const std::map<std::string, std::string>& metadata, OtaType ota_type,
209 RecoveryUI* ui) {
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700210 auto package_ota_type = get_value(metadata, "ota-type");
211 auto expected_ota_type = OtaTypeToString(ota_type);
212 if (ota_type != OtaType::AB && ota_type != OtaType::BRICK) {
213 LOG(INFO) << "Skip package metadata check for ota type " << expected_ota_type;
Tao Bao36c72762019-04-30 00:25:41 -0700214 return true;
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700215 }
216
217 if (package_ota_type != expected_ota_type) {
218 LOG(ERROR) << "Unexpected ota package type, expects " << expected_ota_type << ", actual "
219 << package_ota_type;
Tao Bao36c72762019-04-30 00:25:41 -0700220 return false;
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700221 }
222
223 auto device = android::base::GetProperty("ro.product.device", "");
224 auto pkg_device = get_value(metadata, "pre-device");
Kelvin Zhange1ae78c2020-06-26 11:06:00 -0400225 // device name can be a | separated list, so need to check
Erfan Abdibe2a2232022-03-15 21:34:22 -0400226 if (pkg_device.empty() || !isInStringList(device, pkg_device, FINGERPRING_SEPARATOR ":" ",")) {
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700227 LOG(ERROR) << "Package is for product " << pkg_device << " but expected " << device;
Tao Bao36c72762019-04-30 00:25:41 -0700228 return false;
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700229 }
230
231 // We allow the package to not have any serialno; and we also allow it to carry multiple serial
232 // numbers split by "|"; e.g. serialno=serialno1|serialno2|serialno3 ... We will fail the
233 // verification if the device's serialno doesn't match any of these carried numbers.
Kelvin Zhang2a8c6e02023-03-14 12:27:33 -0700234
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700235 auto pkg_serial_no = get_value(metadata, "serialno");
236 if (!pkg_serial_no.empty()) {
237 auto device_serial_no = android::base::GetProperty("ro.serialno", "");
238 bool serial_number_match = false;
239 for (const auto& number : android::base::Split(pkg_serial_no, "|")) {
240 if (device_serial_no == android::base::Trim(number)) {
241 serial_number_match = true;
242 }
243 }
244 if (!serial_number_match) {
245 LOG(ERROR) << "Package is for serial " << pkg_serial_no;
Tao Bao36c72762019-04-30 00:25:41 -0700246 return false;
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700247 }
Kelvin Zhang2a8c6e02023-03-14 12:27:33 -0700248 } else if (ota_type == OtaType::BRICK) {
249 const auto device_build_tag = android::base::GetProperty("ro.build.tags", "");
250 if (device_build_tag.empty()) {
251 LOG(ERROR) << "Unable to determine device build tags, serial number is missing from package. "
252 "Rejecting the brick OTA package.";
253 return false;
254 }
255 if (device_build_tag == RELEASE_KEYS_TAG) {
256 LOG(ERROR) << "Device is release key build, serial number is missing from package. "
257 "Rejecting the brick OTA package.";
258 return false;
259 }
260 LOG(INFO)
261 << "Serial number is missing from brick OTA package, permitting anyway because device is "
262 << device_build_tag;
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700263 }
264
265 if (ota_type == OtaType::AB) {
Alessandro Astone4d822dd2020-03-17 23:06:52 +0100266 return CheckAbSpecificMetadata(metadata, ui);
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700267 }
268
Tao Bao36c72762019-04-30 00:25:41 -0700269 return true;
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700270}
271
Kelvin Zhanga4208b52022-02-14 18:38:06 -0800272static std::string ExtractPayloadProperties(ZipArchiveHandle zip) {
Tao Baobc4b1fe2017-04-17 16:46:05 -0700273 // For A/B updates we extract the payload properties to a buffer and obtain the RAW payload offset
274 // in the zip file.
275 static constexpr const char* AB_OTA_PAYLOAD_PROPERTIES = "payload_properties.txt";
Kelvin Zhang4f811302020-09-16 14:06:12 -0400276 ZipEntry64 properties_entry;
Elliott Hughesa86dddb2019-05-03 22:52:37 -0700277 if (FindEntry(zip, AB_OTA_PAYLOAD_PROPERTIES, &properties_entry) != 0) {
Kelvin Zhanga4208b52022-02-14 18:38:06 -0800278 return {};
Tao Baobc4b1fe2017-04-17 16:46:05 -0700279 }
Kelvin Zhangd1ba38f2020-09-17 11:32:29 -0400280 auto properties_entry_length = properties_entry.uncompressed_length;
281 if (properties_entry_length > std::numeric_limits<size_t>::max()) {
282 LOG(ERROR) << "Failed to extract " << AB_OTA_PAYLOAD_PROPERTIES
283 << " because's uncompressed size exceeds size of address space. "
284 << properties_entry_length;
Kelvin Zhanga4208b52022-02-14 18:38:06 -0800285 return {};
Kelvin Zhangd1ba38f2020-09-17 11:32:29 -0400286 }
Kelvin Zhanga4208b52022-02-14 18:38:06 -0800287 std::string payload_properties(properties_entry_length, '\0');
Tao Baobc4b1fe2017-04-17 16:46:05 -0700288 int32_t err =
Kelvin Zhanga4208b52022-02-14 18:38:06 -0800289 ExtractToMemory(zip, &properties_entry, reinterpret_cast<uint8_t*>(payload_properties.data()),
290 properties_entry_length);
Tao Baobc4b1fe2017-04-17 16:46:05 -0700291 if (err != 0) {
292 LOG(ERROR) << "Failed to extract " << AB_OTA_PAYLOAD_PROPERTIES << ": " << ErrorCodeString(err);
Kelvin Zhanga4208b52022-02-14 18:38:06 -0800293 return {};
294 }
295 return payload_properties;
296}
297
298bool SetUpAbUpdateCommands(const std::string& package, ZipArchiveHandle zip, int status_fd,
299 std::vector<std::string>* cmd) {
300 CHECK(cmd != nullptr);
301
302 // For A/B updates we extract the payload properties to a buffer and obtain the RAW payload offset
303 // in the zip file.
304 const auto payload_properties = ExtractPayloadProperties(zip);
305 if (payload_properties.empty()) {
Tao Bao36c72762019-04-30 00:25:41 -0700306 return false;
Tao Baobc4b1fe2017-04-17 16:46:05 -0700307 }
Alex Deymo4344d632016-08-03 21:03:53 -0700308
Tao Baobc4b1fe2017-04-17 16:46:05 -0700309 static constexpr const char* AB_OTA_PAYLOAD = "payload.bin";
Kelvin Zhang4f811302020-09-16 14:06:12 -0400310 ZipEntry64 payload_entry;
Elliott Hughesa86dddb2019-05-03 22:52:37 -0700311 if (FindEntry(zip, AB_OTA_PAYLOAD, &payload_entry) != 0) {
Tao Baobc4b1fe2017-04-17 16:46:05 -0700312 LOG(ERROR) << "Failed to find " << AB_OTA_PAYLOAD;
Tao Bao36c72762019-04-30 00:25:41 -0700313 return false;
Tao Baobc4b1fe2017-04-17 16:46:05 -0700314 }
315 long payload_offset = payload_entry.offset;
316 *cmd = {
Tao Bao2cc9bbb2018-08-14 12:34:46 -0700317 "/system/bin/update_engine_sideload",
Tao Bao00d57572017-05-02 15:48:54 -0700318 "--payload=file://" + package,
Tao Baobc4b1fe2017-04-17 16:46:05 -0700319 android::base::StringPrintf("--offset=%ld", payload_offset),
320 "--headers=" + std::string(payload_properties.begin(), payload_properties.end()),
321 android::base::StringPrintf("--status_fd=%d", status_fd),
322 };
Tao Bao36c72762019-04-30 00:25:41 -0700323 return true;
Alex Deymo4344d632016-08-03 21:03:53 -0700324}
325
Tao Bao36c72762019-04-30 00:25:41 -0700326bool SetUpNonAbUpdateCommands(const std::string& package, ZipArchiveHandle zip, int retry_count,
327 int status_fd, std::vector<std::string>* cmd) {
Tao Baobc4b1fe2017-04-17 16:46:05 -0700328 CHECK(cmd != nullptr);
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700329
Tao Baocf60a442018-06-18 14:56:20 -0700330 // In non-A/B updates we extract the update binary from the package.
Tao Baobc4b1fe2017-04-17 16:46:05 -0700331 static constexpr const char* UPDATE_BINARY_NAME = "META-INF/com/google/android/update-binary";
Kelvin Zhang4f811302020-09-16 14:06:12 -0400332 ZipEntry64 binary_entry;
Elliott Hughesa86dddb2019-05-03 22:52:37 -0700333 if (FindEntry(zip, UPDATE_BINARY_NAME, &binary_entry) != 0) {
Tao Baobc4b1fe2017-04-17 16:46:05 -0700334 LOG(ERROR) << "Failed to find update binary " << UPDATE_BINARY_NAME;
Tao Bao36c72762019-04-30 00:25:41 -0700335 return false;
Tao Baobc4b1fe2017-04-17 16:46:05 -0700336 }
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700337
Tao Baocf60a442018-06-18 14:56:20 -0700338 const std::string binary_path = Paths::Get().temporary_update_binary();
Tao Bao00d57572017-05-02 15:48:54 -0700339 unlink(binary_path.c_str());
Tao Baocf60a442018-06-18 14:56:20 -0700340 android::base::unique_fd fd(
341 open(binary_path.c_str(), O_CREAT | O_WRONLY | O_TRUNC | O_CLOEXEC, 0755));
Tao Baobc4b1fe2017-04-17 16:46:05 -0700342 if (fd == -1) {
Tao Bao00d57572017-05-02 15:48:54 -0700343 PLOG(ERROR) << "Failed to create " << binary_path;
Tao Bao36c72762019-04-30 00:25:41 -0700344 return false;
Tao Baobc4b1fe2017-04-17 16:46:05 -0700345 }
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700346
Tao Bao36c72762019-04-30 00:25:41 -0700347 if (auto error = ExtractEntryToFile(zip, &binary_entry, fd); error != 0) {
Tao Baobc4b1fe2017-04-17 16:46:05 -0700348 LOG(ERROR) << "Failed to extract " << UPDATE_BINARY_NAME << ": " << ErrorCodeString(error);
Tao Bao36c72762019-04-30 00:25:41 -0700349 return false;
Tao Baobc4b1fe2017-04-17 16:46:05 -0700350 }
351
Tao Bao6fcd2082019-01-16 09:29:17 -0800352 // When executing the update binary contained in the package, the arguments passed are:
353 // - the version number for this interface
354 // - an FD to which the program can write in order to update the progress bar.
355 // - the name of the package zip file.
356 // - an optional argument "retry" if this update is a retry of a failed update attempt.
Tao Baobc4b1fe2017-04-17 16:46:05 -0700357 *cmd = {
Tao Bao00d57572017-05-02 15:48:54 -0700358 binary_path,
Tao Baobd0ddcd2017-05-04 13:03:18 -0700359 std::to_string(kRecoveryApiVersion),
Tao Baobc4b1fe2017-04-17 16:46:05 -0700360 std::to_string(status_fd),
Tao Bao00d57572017-05-02 15:48:54 -0700361 package,
Tao Baobc4b1fe2017-04-17 16:46:05 -0700362 };
363 if (retry_count > 0) {
364 cmd->push_back("retry");
365 }
Tao Bao36c72762019-04-30 00:25:41 -0700366 return true;
Alex Deymo4344d632016-08-03 21:03:53 -0700367}
Alex Deymo4344d632016-08-03 21:03:53 -0700368
Tianjie Xu37957102017-06-07 17:59:55 -0700369static void log_max_temperature(int* max_temperature, const std::atomic<bool>& logger_finished) {
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -0700370 CHECK(max_temperature != nullptr);
371 std::mutex mtx;
372 std::unique_lock<std::mutex> lck(mtx);
Tianjie Xu37957102017-06-07 17:59:55 -0700373 while (!logger_finished.load() &&
374 finish_log_temperature.wait_for(lck, 20s) == std::cv_status::timeout) {
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -0700375 *max_temperature = std::max(*max_temperature, GetMaxValueFromThermalZone());
376 }
377}
378
Kelvin Zhanga4208b52022-02-14 18:38:06 -0800379static bool PerformPowerwashIfRequired(ZipArchiveHandle zip, Device *device) {
380 const auto payload_properties = ExtractPayloadProperties(zip);
381 if (payload_properties.find("POWERWASH=1") != std::string::npos) {
382 LOG(INFO) << "Payload properties has POWERWASH=1, wiping userdata...";
Eric Biggersfde69fb2022-03-10 22:13:39 +0000383 return WipeData(device);
Kelvin Zhanga4208b52022-02-14 18:38:06 -0800384 }
385 return true;
386}
387
Alex Deymo4344d632016-08-03 21:03:53 -0700388// If the package contains an update binary, extract it and run it.
Tianjie Xu980f92e2019-06-11 15:43:43 -0700389static InstallResult TryUpdateBinary(Package* package, bool* wipe_cache,
390 std::vector<std::string>* log_buffer, int retry_count,
Kelvin Zhanga4208b52022-02-14 18:38:06 -0800391 int* max_temperature, Device* device) {
392 auto ui = device->GetUI();
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700393 std::map<std::string, std::string> metadata;
Tianjie Xu980f92e2019-06-11 15:43:43 -0700394 auto zip = package->GetZipArchiveHandle();
Christopher N. Hesseb379c2e2018-04-03 21:57:30 +0200395 bool has_metadata = ReadMetadataFromPackage(zip, &metadata);
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700396
Richard Hansena5d931d2020-05-04 20:46:09 -0400397 const bool package_is_ab = has_metadata && get_value(metadata, "ota-type") == OtaTypeToString(OtaType::AB);
Kelvin Zhang170ad592023-03-14 15:02:53 -0700398 const bool package_is_brick = get_value(metadata, "ota-type") == OtaTypeToString(OtaType::BRICK);
399 if (package_is_brick) {
400 LOG(INFO) << "Installing a brick package";
401 if (package->GetType() == PackageType::kFile &&
402 package->GetPackageSize() < MEMORY_PACKAGE_LIMIT) {
403 std::vector<uint8_t> content(package->GetPackageSize());
404 if (package->ReadFullyAtOffset(content.data(), content.size(), 0)) {
405 auto memory_package = Package::CreateMemoryPackage(std::move(content), {});
406 return WipeAbDevice(device, memory_package.get()) ? INSTALL_SUCCESS : INSTALL_ERROR;
407 }
408 }
409 return WipeAbDevice(device, package) ? INSTALL_SUCCESS : INSTALL_ERROR;
410 }
Yifan Hongf2af5622020-04-27 20:16:18 -0700411 bool device_supports_ab = android::base::GetBoolProperty("ro.build.ab_update", false);
Christopher N. Hesseb379c2e2018-04-03 21:57:30 +0200412 bool ab_device_supports_nonab = true;
Yifan Hongf2af5622020-04-27 20:16:18 -0700413 bool device_only_supports_ab = device_supports_ab && !ab_device_supports_nonab;
aleastof9a5f052021-01-17 20:31:22 +0100414 bool device_supports_virtual_ab = android::base::GetBoolProperty("ro.virtual_ab.enabled", false);
Yifan Hongf2af5622020-04-27 20:16:18 -0700415
jhenrique093c9e2812021-10-10 15:50:09 -0300416 /*const auto current_spl = android::base::GetProperty("ro.build.version.security_patch", "");
Kelvin Zhang33c62fc2021-05-14 17:15:50 -0400417 if (ViolatesSPLDowngrade(zip, current_spl)) {
418 LOG(ERROR) << "Denying OTA because it's SPL downgrade";
419 return INSTALL_ERROR;
jhenrique093c9e2812021-10-10 15:50:09 -0300420 }*/
Kelvin Zhang33c62fc2021-05-14 17:15:50 -0400421
LuK133758ec7322023-08-04 22:09:53 +0200422 const auto reboot_to_recovery = [] {
423 if (std::string err; !clear_bootloader_message(&err)) {
424 LOG(ERROR) << "Failed to clear BCB message: " << err;
425 }
LuK1337568f5db2023-08-04 22:47:58 +0200426 Reboot("recovery");
LuK133758ec7322023-08-04 22:09:53 +0200427 };
428
LuK1337561cd9e2023-07-29 11:16:41 +0200429 static bool ab_package_installed = false;
430 if (ab_package_installed) {
431 if (ask_to_ab_reboot(device)) {
LuK133758ec7322023-08-04 22:09:53 +0200432 reboot_to_recovery();
LuK1337561cd9e2023-07-29 11:16:41 +0200433 }
434 return INSTALL_ERROR;
435 }
436
Yifan Hongf2af5622020-04-27 20:16:18 -0700437 if (package_is_ab) {
Tianjie Xu980f92e2019-06-11 15:43:43 -0700438 CHECK(package->GetType() == PackageType::kFile);
439 }
440
Yifan Hongf2af5622020-04-27 20:16:18 -0700441 // Verify against the metadata in the package first. Expects A/B metadata if:
442 // Package declares itself as an A/B package
443 // Package does not declare itself as an A/B package, but device only supports A/B;
444 // still calls CheckPackageMetadata to get a meaningful error message.
445 if (package_is_ab || device_only_supports_ab) {
Alessandro Astone4d822dd2020-03-17 23:06:52 +0100446 if (!CheckPackageMetadata(metadata, OtaType::AB, ui)) {
Yifan Hongf2af5622020-04-27 20:16:18 -0700447 log_buffer->push_back(android::base::StringPrintf("error: %d", kUpdateBinaryCommandFailure));
448 return INSTALL_ERROR;
449 }
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700450 }
451
aleastof9a5f052021-01-17 20:31:22 +0100452 if (!package_is_ab && !logical_partitions_mapped()) {
453 CreateSnapshotPartitions();
454 map_logical_partitions();
455 } else if (package_is_ab && device_supports_virtual_ab && logical_partitions_mapped()) {
456 LOG(ERROR) << "Logical partitions are mapped. "
457 << "Please reboot recovery before installing an OTA update.";
458 return INSTALL_ERROR;
459 }
460
Tianjie Xu93b5bf22018-10-25 10:39:01 -0700461 ReadSourceTargetBuild(metadata, log_buffer);
Alex Deymo4344d632016-08-03 21:03:53 -0700462
Tao Bao6fcd2082019-01-16 09:29:17 -0800463 // The updater in child process writes to the pipe to communicate with recovery.
464 android::base::unique_fd pipe_read, pipe_write;
Bill Peckham08ba1ad2019-03-28 18:42:13 -0700465 // Explicitly disable O_CLOEXEC using 0 as the flags (last) parameter to Pipe
466 // so that the child updater process will recieve a non-closed fd.
467 if (!android::base::Pipe(&pipe_read, &pipe_write, 0)) {
Tao Bao6fcd2082019-01-16 09:29:17 -0800468 PLOG(ERROR) << "Failed to create pipe for updater-recovery communication";
469 return INSTALL_CORRUPT;
470 }
471
472 // The updater-recovery communication protocol.
473 //
474 // progress <frac> <secs>
475 // fill up the next <frac> part of of the progress bar over <secs> seconds. If <secs> is
476 // zero, use `set_progress` commands to manually control the progress of this segment of the
477 // bar.
478 //
479 // set_progress <frac>
480 // <frac> should be between 0.0 and 1.0; sets the progress bar within the segment defined by
481 // the most recent progress command.
482 //
483 // ui_print <string>
484 // display <string> on the screen.
485 //
486 // wipe_cache
487 // a wipe of cache will be performed following a successful installation.
488 //
489 // clear_display
490 // turn off the text display.
491 //
492 // enable_reboot
493 // packages can explicitly request that they want the user to be able to reboot during
494 // installation (useful for debugging packages that don't exit).
495 //
496 // retry_update
497 // updater encounters some issue during the update. It requests a reboot to retry the same
498 // package automatically.
499 //
500 // log <string>
501 // updater requests logging the string (e.g. cause of the failure).
502 //
503
Tianjie Xu980f92e2019-06-11 15:43:43 -0700504 std::string package_path = package->GetPath();
505
Tao Bao20c581e2016-12-28 20:55:51 -0800506 std::vector<std::string> args;
Tao Bao36c72762019-04-30 00:25:41 -0700507 if (auto setup_result =
Yifan Hongf2af5622020-04-27 20:16:18 -0700508 package_is_ab
509 ? SetUpAbUpdateCommands(package_path, zip, pipe_write.get(), &args)
510 : SetUpNonAbUpdateCommands(package_path, zip, retry_count, pipe_write.get(), &args);
Tao Bao36c72762019-04-30 00:25:41 -0700511 !setup_result) {
Tianjie Xu3fec8c62017-08-23 00:18:07 -0700512 log_buffer->push_back(android::base::StringPrintf("error: %d", kUpdateBinaryCommandFailure));
Tao Bao36c72762019-04-30 00:25:41 -0700513 return INSTALL_CORRUPT;
Tao Bao20c581e2016-12-28 20:55:51 -0800514 }
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700515
Tao Bao20c581e2016-12-28 20:55:51 -0800516 pid_t pid = fork();
Tao Bao20c581e2016-12-28 20:55:51 -0800517 if (pid == -1) {
Tao Bao20c581e2016-12-28 20:55:51 -0800518 PLOG(ERROR) << "Failed to fork update binary";
Tianjie Xu3fec8c62017-08-23 00:18:07 -0700519 log_buffer->push_back(android::base::StringPrintf("error: %d", kForkUpdateBinaryFailure));
Tao Bao20c581e2016-12-28 20:55:51 -0800520 return INSTALL_ERROR;
521 }
522
523 if (pid == 0) {
524 umask(022);
Tao Bao6fcd2082019-01-16 09:29:17 -0800525 pipe_read.reset();
526
527 // Convert the std::string vector to a NULL-terminated char* vector suitable for execv.
528 auto chr_args = StringVectorToNullTerminatedArray(args);
Tao Bao3d69f0d2018-12-20 09:44:06 -0800529 execv(chr_args[0], chr_args.data());
Tao Bao6fcd2082019-01-16 09:29:17 -0800530 // We shouldn't use LOG/PLOG in the forked process, since they may cause the child process to
531 // hang. This deadlock results from an improperly copied mutex in the ui functions.
532 // (Bug: 34769056)
Tianjie Xuab1abae2017-01-30 16:48:52 -0800533 fprintf(stdout, "E:Can't run %s (%s)\n", chr_args[0], strerror(errno));
Tao Bao3da88012017-02-03 13:09:23 -0800534 _exit(EXIT_FAILURE);
Tao Bao20c581e2016-12-28 20:55:51 -0800535 }
Tao Bao6fcd2082019-01-16 09:29:17 -0800536 pipe_write.reset();
Tao Bao20c581e2016-12-28 20:55:51 -0800537
Tianjie Xu37957102017-06-07 17:59:55 -0700538 std::atomic<bool> logger_finished(false);
539 std::thread temperature_logger(log_max_temperature, max_temperature, std::ref(logger_finished));
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -0700540
Tao Bao20c581e2016-12-28 20:55:51 -0800541 *wipe_cache = false;
542 bool retry_update = false;
543
544 char buffer[1024];
Tao Bao6fcd2082019-01-16 09:29:17 -0800545 FILE* from_child = android::base::Fdopen(std::move(pipe_read), "r");
Tao Bao20c581e2016-12-28 20:55:51 -0800546 while (fgets(buffer, sizeof(buffer), from_child) != nullptr) {
547 std::string line(buffer);
548 size_t space = line.find_first_of(" \n");
549 std::string command(line.substr(0, space));
550 if (command.empty()) continue;
551
552 // Get rid of the leading and trailing space and/or newline.
553 std::string args = space == std::string::npos ? "" : android::base::Trim(line.substr(space));
554
555 if (command == "progress") {
556 std::vector<std::string> tokens = android::base::Split(args, " ");
557 double fraction;
558 int seconds;
559 if (tokens.size() == 2 && android::base::ParseDouble(tokens[0].c_str(), &fraction) &&
560 android::base::ParseInt(tokens[1], &seconds)) {
561 ui->ShowProgress(fraction * (1 - VERIFICATION_PROGRESS_FRACTION), seconds);
562 } else {
563 LOG(ERROR) << "invalid \"progress\" parameters: " << line;
564 }
565 } else if (command == "set_progress") {
566 std::vector<std::string> tokens = android::base::Split(args, " ");
567 double fraction;
568 if (tokens.size() == 1 && android::base::ParseDouble(tokens[0].c_str(), &fraction)) {
569 ui->SetProgress(fraction);
570 } else {
571 LOG(ERROR) << "invalid \"set_progress\" parameters: " << line;
572 }
573 } else if (command == "ui_print") {
TH7791f0d2362022-02-16 15:45:15 +0800574 // Keep all spaces
575 args = line.substr(space + 1);
576 ui->PrintOnScreenOnly("%s", args.c_str());
Tao Bao20c581e2016-12-28 20:55:51 -0800577 fflush(stdout);
578 } else if (command == "wipe_cache") {
579 *wipe_cache = true;
580 } else if (command == "clear_display") {
581 ui->SetBackground(RecoveryUI::NONE);
582 } else if (command == "enable_reboot") {
583 // packages can explicitly request that they want the user
584 // to be able to reboot during installation (useful for
585 // debugging packages that don't exit).
586 ui->SetEnableReboot(true);
587 } else if (command == "retry_update") {
588 retry_update = true;
589 } else if (command == "log") {
590 if (!args.empty()) {
591 // Save the logging request from updater and write to last_install later.
Tao Bao29ee69b2017-05-01 12:23:17 -0700592 log_buffer->push_back(args);
Tao Bao20c581e2016-12-28 20:55:51 -0800593 } else {
594 LOG(ERROR) << "invalid \"log\" parameters: " << line;
595 }
596 } else {
597 LOG(ERROR) << "unknown command [" << command << "]";
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700598 }
Tao Bao20c581e2016-12-28 20:55:51 -0800599 }
600 fclose(from_child);
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700601
Tao Bao20c581e2016-12-28 20:55:51 -0800602 int status;
603 waitpid(pid, &status, 0);
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -0700604
Tianjie Xu37957102017-06-07 17:59:55 -0700605 logger_finished.store(true);
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -0700606 finish_log_temperature.notify_one();
607 temperature_logger.join();
608
Tao Bao20c581e2016-12-28 20:55:51 -0800609 if (retry_update) {
610 return INSTALL_RETRY;
611 }
Tao Baoe7b775c2018-11-07 15:13:30 -0800612 if (WIFEXITED(status)) {
613 if (WEXITSTATUS(status) != EXIT_SUCCESS) {
Tianjie Xu980f92e2019-06-11 15:43:43 -0700614 LOG(ERROR) << "Error in " << package_path << " (status " << WEXITSTATUS(status) << ")";
Tao Baoe7b775c2018-11-07 15:13:30 -0800615 return INSTALL_ERROR;
616 }
617 } else if (WIFSIGNALED(status)) {
Tianjie Xu980f92e2019-06-11 15:43:43 -0700618 LOG(ERROR) << "Error in " << package_path << " (killed by signal " << WTERMSIG(status) << ")";
Tao Bao20c581e2016-12-28 20:55:51 -0800619 return INSTALL_ERROR;
Tao Baoe7b775c2018-11-07 15:13:30 -0800620 } else {
621 LOG(FATAL) << "Invalid status code " << status;
Tao Bao20c581e2016-12-28 20:55:51 -0800622 }
Tim Zimmermann78e524e2022-10-14 19:43:01 +0200623 if (package_is_ab) {
LuK1337561cd9e2023-07-29 11:16:41 +0200624 ab_package_installed = true;
Tim Zimmermann78e524e2022-10-14 19:43:01 +0200625 PerformPowerwashIfRequired(zip, device);
Joseph Annareddya1cfeb22023-08-16 12:04:56 -0400626 if (!ui->IsSideloadAutoReboot() && ask_to_ab_reboot(device)) {
LuK133758ec7322023-08-04 22:09:53 +0200627 reboot_to_recovery();
LuK1337561cd9e2023-07-29 11:16:41 +0200628 }
Tim Zimmermann78e524e2022-10-14 19:43:01 +0200629 }
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700630
Tao Bao20c581e2016-12-28 20:55:51 -0800631 return INSTALL_SUCCESS;
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700632}
633
Tianjie Xu980f92e2019-06-11 15:43:43 -0700634static InstallResult VerifyAndInstallPackage(Package* package, bool* wipe_cache,
635 std::vector<std::string>* log_buffer, int retry_count,
Kelvin Zhanga4208b52022-02-14 18:38:06 -0800636 int* max_temperature, Device* device) {
637 auto ui = device->GetUI();
Tao Bao29ee69b2017-05-01 12:23:17 -0700638 ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
Tao Bao29ee69b2017-05-01 12:23:17 -0700639 // Give verification half the progress bar...
640 ui->SetProgressType(RecoveryUI::DETERMINATE);
641 ui->ShowProgress(VERIFICATION_PROGRESS_FRACTION, VERIFICATION_PROGRESS_TIME);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800642
Tao Bao29ee69b2017-05-01 12:23:17 -0700643 // Verify package.
Tianjie Xu980f92e2019-06-11 15:43:43 -0700644 if (!verify_package(package, ui)) {
Tao Bao29ee69b2017-05-01 12:23:17 -0700645 log_buffer->push_back(android::base::StringPrintf("error: %d", kZipVerificationFailure));
Tom Marshall7cb5d3e2018-06-21 00:57:24 +0200646 if (!ui->IsTextVisible() || !ask_to_continue_unverified(ui->GetDevice())) {
647 return INSTALL_CORRUPT;
648 }
Tao Bao29ee69b2017-05-01 12:23:17 -0700649 }
Doug Zongker60151a22009-08-12 18:30:03 -0700650
Tao Bao29ee69b2017-05-01 12:23:17 -0700651 // Verify and install the contents of the package.
652 ui->Print("Installing update...\n");
653 if (retry_count > 0) {
654 ui->Print("Retry attempt: %d\n", retry_count);
655 }
656 ui->SetEnableReboot(false);
Kelvin Zhanga4208b52022-02-14 18:38:06 -0800657 auto result =
658 TryUpdateBinary(package, wipe_cache, log_buffer, retry_count, max_temperature, device);
Tao Bao29ee69b2017-05-01 12:23:17 -0700659 ui->SetEnableReboot(true);
660 ui->Print("\n");
661
Tao Bao29ee69b2017-05-01 12:23:17 -0700662 return result;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800663}
Doug Zongker469243e2011-04-12 09:28:10 -0700664
Tianjie Xu980f92e2019-06-11 15:43:43 -0700665InstallResult InstallPackage(Package* package, const std::string_view package_id,
Kelvin Zhanga4208b52022-02-14 18:38:06 -0800666 bool should_wipe_cache, int retry_count, Device* device) {
667 auto ui = device->GetUI();
Tao Baof8119fb2017-04-18 21:35:12 -0700668 auto start = std::chrono::system_clock::now();
Tao Bao682c34b2015-04-07 17:16:35 -0700669
Tao Baof8119fb2017-04-18 21:35:12 -0700670 int start_temperature = GetMaxValueFromThermalZone();
671 int max_temperature = start_temperature;
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -0700672
Tao Baoadc99ef2019-04-29 23:48:02 -0700673 InstallResult result;
Tao Baof8119fb2017-04-18 21:35:12 -0700674 std::vector<std::string> log_buffer;
Tianjie Xu980f92e2019-06-11 15:43:43 -0700675
Tianjie Xu164c60a2019-05-15 13:59:39 -0700676 ui->Print("Supported API: %d\n", kRecoveryApiVersion);
677
Tianjie Xu980f92e2019-06-11 15:43:43 -0700678 ui->Print("Finding update package...\n");
679 LOG(INFO) << "Update package id: " << package_id;
680 if (!package) {
681 log_buffer.push_back(android::base::StringPrintf("error: %d", kMapFileFailure));
682 result = INSTALL_CORRUPT;
683 } else if (setup_install_mounts() != 0) {
Tao Baof8119fb2017-04-18 21:35:12 -0700684 LOG(ERROR) << "failed to set up expected mounts for install; aborting";
685 result = INSTALL_ERROR;
686 } else {
xunchang316e9712019-04-12 16:22:15 -0700687 bool updater_wipe_cache = false;
Tianjie Xu980f92e2019-06-11 15:43:43 -0700688 result = VerifyAndInstallPackage(package, &updater_wipe_cache, &log_buffer, retry_count,
Kelvin Zhanga4208b52022-02-14 18:38:06 -0800689 &max_temperature, device);
xunchang316e9712019-04-12 16:22:15 -0700690 should_wipe_cache = should_wipe_cache || updater_wipe_cache;
Tao Baof8119fb2017-04-18 21:35:12 -0700691 }
692
693 // Measure the time spent to apply OTA update in seconds.
694 std::chrono::duration<double> duration = std::chrono::system_clock::now() - start;
695 int time_total = static_cast<int>(duration.count());
696
Tao Bao3e18f2b2017-09-29 17:11:13 -0700697 bool has_cache = volume_for_mount_point("/cache") != nullptr;
Tao Baof8119fb2017-04-18 21:35:12 -0700698 // Skip logging the uncrypt_status on devices without /cache.
699 if (has_cache) {
700 static constexpr const char* UNCRYPT_STATUS = "/cache/recovery/uncrypt_status";
701 if (ensure_path_mounted(UNCRYPT_STATUS) != 0) {
702 LOG(WARNING) << "Can't mount " << UNCRYPT_STATUS;
Doug Zongker239ac6a2013-08-20 16:03:25 -0700703 } else {
Tao Baof8119fb2017-04-18 21:35:12 -0700704 std::string uncrypt_status;
705 if (!android::base::ReadFileToString(UNCRYPT_STATUS, &uncrypt_status)) {
706 PLOG(WARNING) << "failed to read uncrypt status";
707 } else if (!android::base::StartsWith(uncrypt_status, "uncrypt_")) {
708 LOG(WARNING) << "corrupted uncrypt_status: " << uncrypt_status;
Tianjie Xua2867782017-03-24 14:13:56 -0700709 } else {
Tao Baof8119fb2017-04-18 21:35:12 -0700710 log_buffer.push_back(android::base::Trim(uncrypt_status));
Tianjie Xua2867782017-03-24 14:13:56 -0700711 }
Doug Zongker469243e2011-04-12 09:28:10 -0700712 }
Tao Baof8119fb2017-04-18 21:35:12 -0700713 }
Tao Baobadaac42016-09-26 11:39:14 -0700714
Tao Baof8119fb2017-04-18 21:35:12 -0700715 // The first two lines need to be the package name and install result.
716 std::vector<std::string> log_header = {
Tianjie Xu980f92e2019-06-11 15:43:43 -0700717 std::string(package_id),
Tao Baof8119fb2017-04-18 21:35:12 -0700718 result == INSTALL_SUCCESS ? "1" : "0",
719 "time_total: " + std::to_string(time_total),
720 "retry: " + std::to_string(retry_count),
721 };
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -0700722
Tao Baof8119fb2017-04-18 21:35:12 -0700723 int end_temperature = GetMaxValueFromThermalZone();
724 max_temperature = std::max(end_temperature, max_temperature);
725 if (start_temperature > 0) {
726 log_buffer.push_back("temperature_start: " + std::to_string(start_temperature));
727 }
728 if (end_temperature > 0) {
729 log_buffer.push_back("temperature_end: " + std::to_string(end_temperature));
730 }
731 if (max_temperature > 0) {
732 log_buffer.push_back("temperature_max: " + std::to_string(max_temperature));
733 }
Tianjie Xu3ee2b9d2017-03-27 14:12:26 -0700734
Tao Baof8119fb2017-04-18 21:35:12 -0700735 std::string log_content =
736 android::base::Join(log_header, "\n") + "\n" + android::base::Join(log_buffer, "\n") + "\n";
Tao Bao641fa972018-04-25 18:59:40 -0700737 const std::string& install_file = Paths::Get().temporary_install_file();
Tao Baof8119fb2017-04-18 21:35:12 -0700738 if (!android::base::WriteStringToFile(log_content, install_file)) {
739 PLOG(ERROR) << "failed to write " << install_file;
740 }
Tao Baobadaac42016-09-26 11:39:14 -0700741
Tao Baof8119fb2017-04-18 21:35:12 -0700742 // Write a copy into last_log.
743 LOG(INFO) << log_content;
Tao Baobadaac42016-09-26 11:39:14 -0700744
xunchang316e9712019-04-12 16:22:15 -0700745 if (result == INSTALL_SUCCESS && should_wipe_cache) {
746 if (!WipeCache(ui, nullptr)) {
747 result = INSTALL_ERROR;
748 }
749 }
750
Tao Baof8119fb2017-04-18 21:35:12 -0700751 return result;
Doug Zongker469243e2011-04-12 09:28:10 -0700752}
Yabin Cui6faf0262016-06-09 14:09:39 -0700753
xunchang24788852019-03-22 16:08:52 -0700754bool verify_package(Package* package, RecoveryUI* ui) {
Tianjie Xue1d02fb2018-10-19 15:52:17 -0700755 static constexpr const char* CERTIFICATE_ZIP_FILE = "/system/etc/security/otacerts.zip";
756 std::vector<Certificate> loaded_keys = LoadKeysFromZipfile(CERTIFICATE_ZIP_FILE);
757 if (loaded_keys.empty()) {
Tao Bao5e535012017-03-16 17:37:38 -0700758 LOG(ERROR) << "Failed to load keys";
759 return false;
760 }
Tianjie Xue1d02fb2018-10-19 15:52:17 -0700761 LOG(INFO) << loaded_keys.size() << " key(s) loaded from " << CERTIFICATE_ZIP_FILE;
Yabin Cui6faf0262016-06-09 14:09:39 -0700762
Tao Bao5e535012017-03-16 17:37:38 -0700763 // Verify package.
764 ui->Print("Verifying update package...\n");
765 auto t0 = std::chrono::system_clock::now();
xunchangf07ed2e2019-02-25 14:14:01 -0800766 int err = verify_file(package, loaded_keys);
Tao Bao5e535012017-03-16 17:37:38 -0700767 std::chrono::duration<double> duration = std::chrono::system_clock::now() - t0;
768 ui->Print("Update package verification took %.1f s (result %d).\n", duration.count(), err);
769 if (err != VERIFY_SUCCESS) {
770 LOG(ERROR) << "Signature verification failed";
771 LOG(ERROR) << "error: " << kZipVerificationFailure;
772 return false;
773 }
774 return true;
Yabin Cui6faf0262016-06-09 14:09:39 -0700775}
Tianjie Xucd8faf72019-08-06 12:32:05 -0700776
777bool SetupPackageMount(const std::string& package_path, bool* should_use_fuse) {
778 CHECK(should_use_fuse != nullptr);
779
780 if (package_path.empty()) {
781 return false;
782 }
783
784 *should_use_fuse = true;
785 if (package_path[0] == '@') {
786 auto block_map_path = package_path.substr(1);
787 if (ensure_path_mounted(block_map_path) != 0) {
788 LOG(ERROR) << "Failed to mount " << block_map_path;
789 return false;
790 }
791 // uncrypt only produces block map only if the package stays on /data.
792 *should_use_fuse = false;
793 return true;
794 }
795
796 // Package is not a block map file.
797 if (ensure_path_mounted(package_path) != 0) {
798 LOG(ERROR) << "Failed to mount " << package_path;
799 return false;
800 }
801
802 // Reject the package if the input path doesn't equal the canonicalized path.
803 // e.g. /cache/../sdcard/update_package.
804 std::error_code ec;
805 auto canonical_path = std::filesystem::canonical(package_path, ec);
806 if (ec) {
807 LOG(ERROR) << "Failed to get canonical of " << package_path << ", " << ec.message();
808 return false;
809 }
810 if (canonical_path.string() != package_path) {
811 LOG(ERROR) << "Installation aborts. The canonical path " << canonical_path.string()
812 << " doesn't equal the original path " << package_path;
813 return false;
814 }
815
816 constexpr const char* CACHE_ROOT = "/cache";
817 if (android::base::StartsWith(package_path, CACHE_ROOT)) {
818 *should_use_fuse = false;
819 }
820 return true;
821}
Kelvin Zhange1ae78c2020-06-26 11:06:00 -0400822
823// Check if `target_token` is in string `str_list`, where `str_list` is expected to be a
824// list delimited by `deliminator`
825// E.X. isInStringList("a", "a|b|c|d", "|") => true
826// E.X. isInStringList("abc", "abc", "|") => true
827static bool isInStringList(const std::string& target_token, const std::string& str_list,
828 const std::string& deliminator) {
829 if (target_token.length() > str_list.length()) {
830 return false;
831 } else if (target_token.length() == str_list.length() || deliminator.length() == 0) {
832 return target_token == str_list;
833 }
834 auto&& list = android::base::Split(str_list, deliminator);
835 return std::find(list.begin(), list.end(), target_token) != list.end();
836}