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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
Tao Bao20c581e2016-12-28 20:55:51 -080017#include "install.h"
18
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 Xud8df5482017-03-28 21:39:08 +000029#include <algorithm>
Elliott Hughes8febafa2016-04-13 16:39:56 -070030#include <chrono>
Tianjie Xud8df5482017-03-28 21:39:08 +000031#include <condition_variable>
Tao Bao5e535012017-03-16 17:37:38 -070032#include <functional>
Alex Deymo4344d632016-08-03 21:03:53 -070033#include <limits>
34#include <map>
Tianjie Xud8df5482017-03-28 21:39:08 +000035#include <mutex>
Tianjie Xudd874b12016-05-13 12:13:15 -070036#include <string>
Tianjie Xud8df5482017-03-28 21:39:08 +000037#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>
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -070047#include <ziparchive/zip_archive.h>
Tianjie Xu16255832016-04-30 11:49:59 -070048
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080049#include "common.h"
Tianjie Xu16255832016-04-30 11:49:59 -070050#include "error_code.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080051#include "minui/minui.h"
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -070052#include "otautil/SysUtil.h"
Tianjie Xud8df5482017-03-28 21:39:08 +000053#include "otautil/ThermalUtil.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080054#include "roots.h"
Doug Zongker10e418d2011-10-28 10:33:05 -070055#include "ui.h"
Mattias Nissler452df6d2016-04-04 16:17:01 +020056#include "verifier.h"
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080057
Tianjie Xud8df5482017-03-28 21:39:08 +000058using namespace std::chrono_literals;
59
Doug Zongkerb2ee9202009-06-04 10:24:53 -070060#define ASSUMED_UPDATE_BINARY_NAME "META-INF/com/google/android/update-binary"
Alex Deymo4344d632016-08-03 21:03:53 -070061static constexpr const char* AB_OTA_PAYLOAD_PROPERTIES = "payload_properties.txt";
62static constexpr const char* AB_OTA_PAYLOAD = "payload.bin";
Doug Zongkerd1b19b92009-04-01 15:48:46 -070063#define PUBLIC_KEYS_FILE "/res/keys"
Tianjie Xub0ddae52016-06-08 14:30:04 -070064static constexpr const char* METADATA_PATH = "META-INF/com/android/metadata";
Tianjie Xue16e7992016-09-09 10:55:44 -070065static constexpr const char* UNCRYPT_STATUS = "/cache/recovery/uncrypt_status";
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -080066
Doug Zongker74406302011-10-28 15:13:10 -070067// Default allocation of progress bar segments to operations
Tao Bao20c581e2016-12-28 20:55:51 -080068static constexpr int VERIFICATION_PROGRESS_TIME = 60;
69static constexpr float VERIFICATION_PROGRESS_FRACTION = 0.25;
70static constexpr float DEFAULT_FILES_PROGRESS_FRACTION = 0.4;
71static constexpr float DEFAULT_IMAGE_PROGRESS_FRACTION = 0.1;
Doug Zongker74406302011-10-28 15:13:10 -070072
Tianjie Xud8df5482017-03-28 21:39:08 +000073static std::condition_variable finish_log_temperature;
74
Tianjie Xub0ddae52016-06-08 14:30:04 -070075// This function parses and returns the build.version.incremental
Chih-Hung Hsieh8b238112016-08-26 14:54:29 -070076static int parse_build_number(const std::string& str) {
77 size_t pos = str.find('=');
Tianjie Xub0ddae52016-06-08 14:30:04 -070078 if (pos != std::string::npos) {
79 std::string num_string = android::base::Trim(str.substr(pos+1));
80 int build_number;
81 if (android::base::ParseInt(num_string.c_str(), &build_number, 0)) {
82 return build_number;
83 }
84 }
85
Tianjie Xuc21edd42016-08-05 18:00:04 -070086 LOG(ERROR) << "Failed to parse build number in " << str;
Tianjie Xub0ddae52016-06-08 14:30:04 -070087 return -1;
88}
89
Tianjie Xu8176cf22016-10-18 14:13:07 -070090bool read_metadata_from_package(ZipArchiveHandle zip, std::string* meta_data) {
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -070091 ZipString metadata_path(METADATA_PATH);
92 ZipEntry meta_entry;
Tianjie Xu8176cf22016-10-18 14:13:07 -070093 if (meta_data == nullptr) {
94 LOG(ERROR) << "string* meta_data can't be nullptr";
95 return false;
96 }
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -070097 if (FindEntry(zip, metadata_path, &meta_entry) != 0) {
Tianjie Xuc21edd42016-08-05 18:00:04 -070098 LOG(ERROR) << "Failed to find " << METADATA_PATH << " in update package";
Yabin Cui6faf0262016-06-09 14:09:39 -070099 return false;
Tianjie Xub0ddae52016-06-08 14:30:04 -0700100 }
101
Tianjie Xu8176cf22016-10-18 14:13:07 -0700102 meta_data->resize(meta_entry.uncompressed_length, '\0');
103 if (ExtractToMemory(zip, &meta_entry, reinterpret_cast<uint8_t*>(&(*meta_data)[0]),
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700104 meta_entry.uncompressed_length) != 0) {
Tianjie Xuc21edd42016-08-05 18:00:04 -0700105 LOG(ERROR) << "Failed to read metadata in update package";
Yabin Cui6faf0262016-06-09 14:09:39 -0700106 return false;
107 }
108 return true;
109}
110
111// Read the build.version.incremental of src/tgt from the metadata and log it to last_install.
Tianjie Xu8176cf22016-10-18 14:13:07 -0700112static void read_source_target_build(ZipArchiveHandle zip, std::vector<std::string>& log_buffer) {
Yabin Cui6faf0262016-06-09 14:09:39 -0700113 std::string meta_data;
114 if (!read_metadata_from_package(zip, &meta_data)) {
Tianjie Xub0ddae52016-06-08 14:30:04 -0700115 return;
116 }
Tianjie Xub0ddae52016-06-08 14:30:04 -0700117 // Examples of the pre-build and post-build strings in metadata:
118 // pre-build-incremental=2943039
119 // post-build-incremental=2951741
120 std::vector<std::string> lines = android::base::Split(meta_data, "\n");
121 for (const std::string& line : lines) {
122 std::string str = android::base::Trim(line);
123 if (android::base::StartsWith(str, "pre-build-incremental")){
124 int source_build = parse_build_number(str);
125 if (source_build != -1) {
126 log_buffer.push_back(android::base::StringPrintf("source_build: %d",
127 source_build));
128 }
129 } else if (android::base::StartsWith(str, "post-build-incremental")) {
130 int target_build = parse_build_number(str);
131 if (target_build != -1) {
132 log_buffer.push_back(android::base::StringPrintf("target_build: %d",
133 target_build));
134 }
135 }
136 }
137}
138
Alex Deymo4344d632016-08-03 21:03:53 -0700139// Extract the update binary from the open zip archive |zip| located at |path|
140// and store into |cmd| the command line that should be called. The |status_fd|
141// is the file descriptor the child process should use to report back the
142// progress of the update.
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700143static int
Tianjie Xu8176cf22016-10-18 14:13:07 -0700144update_binary_command(const char* path, ZipArchiveHandle zip, int retry_count,
Alex Deymo4344d632016-08-03 21:03:53 -0700145 int status_fd, std::vector<std::string>* cmd);
Tianjie Xub0ddae52016-06-08 14:30:04 -0700146
Alex Deymo4344d632016-08-03 21:03:53 -0700147#ifdef AB_OTA_UPDATER
148
149// Parses the metadata of the OTA package in |zip| and checks whether we are
150// allowed to accept this A/B package. Downgrading is not allowed unless
151// explicitly enabled in the package and only for incremental packages.
Tao Baoefc35592017-01-08 22:45:47 -0800152static int check_newer_ab_build(ZipArchiveHandle zip) {
153 std::string metadata_str;
154 if (!read_metadata_from_package(zip, &metadata_str)) {
155 return INSTALL_CORRUPT;
156 }
157 std::map<std::string, std::string> metadata;
158 for (const std::string& line : android::base::Split(metadata_str, "\n")) {
159 size_t eq = line.find('=');
160 if (eq != std::string::npos) {
161 metadata[line.substr(0, eq)] = line.substr(eq + 1);
Alex Deymo4344d632016-08-03 21:03:53 -0700162 }
Tao Baoefc35592017-01-08 22:45:47 -0800163 }
Alex Deymo4344d632016-08-03 21:03:53 -0700164
Tao Baoefc35592017-01-08 22:45:47 -0800165 std::string value = android::base::GetProperty("ro.product.device", "");
166 const std::string& pkg_device = metadata["pre-device"];
167 if (pkg_device != value || pkg_device.empty()) {
168 LOG(ERROR) << "Package is for product " << pkg_device << " but expected " << value;
169 return INSTALL_ERROR;
170 }
Alex Deymo4344d632016-08-03 21:03:53 -0700171
Tao Baoefc35592017-01-08 22:45:47 -0800172 // We allow the package to not have any serialno, but if it has a non-empty
173 // value it should match.
174 value = android::base::GetProperty("ro.serialno", "");
175 const std::string& pkg_serial_no = metadata["serialno"];
176 if (!pkg_serial_no.empty() && pkg_serial_no != value) {
177 LOG(ERROR) << "Package is for serial " << pkg_serial_no;
178 return INSTALL_ERROR;
179 }
Alex Deymo4344d632016-08-03 21:03:53 -0700180
Tao Baoefc35592017-01-08 22:45:47 -0800181 if (metadata["ota-type"] != "AB") {
182 LOG(ERROR) << "Package is not A/B";
183 return INSTALL_ERROR;
184 }
Alex Deymo4344d632016-08-03 21:03:53 -0700185
Tao Baoefc35592017-01-08 22:45:47 -0800186 // Incremental updates should match the current build.
187 value = android::base::GetProperty("ro.build.version.incremental", "");
188 const std::string& pkg_pre_build = metadata["pre-build-incremental"];
189 if (!pkg_pre_build.empty() && pkg_pre_build != value) {
190 LOG(ERROR) << "Package is for source build " << pkg_pre_build << " but expected " << value;
191 return INSTALL_ERROR;
192 }
Alex Deymo4344d632016-08-03 21:03:53 -0700193
Tao Baoefc35592017-01-08 22:45:47 -0800194 value = android::base::GetProperty("ro.build.fingerprint", "");
195 const std::string& pkg_pre_build_fingerprint = metadata["pre-build"];
196 if (!pkg_pre_build_fingerprint.empty() && pkg_pre_build_fingerprint != value) {
197 LOG(ERROR) << "Package is for source build " << pkg_pre_build_fingerprint << " but expected "
198 << value;
199 return INSTALL_ERROR;
200 }
Alex Deymo4344d632016-08-03 21:03:53 -0700201
Tao Baoefc35592017-01-08 22:45:47 -0800202 // Check for downgrade version.
203 int64_t build_timestamp =
204 android::base::GetIntProperty("ro.build.date.utc", std::numeric_limits<int64_t>::max());
205 int64_t pkg_post_timestamp = 0;
206 // We allow to full update to the same version we are running, in case there
207 // is a problem with the current copy of that version.
208 if (metadata["post-timestamp"].empty() ||
209 !android::base::ParseInt(metadata["post-timestamp"].c_str(), &pkg_post_timestamp) ||
210 pkg_post_timestamp < build_timestamp) {
211 if (metadata["ota-downgrade"] != "yes") {
212 LOG(ERROR) << "Update package is older than the current build, expected a build "
213 "newer than timestamp "
214 << build_timestamp << " but package has timestamp " << pkg_post_timestamp
215 << " and downgrade not allowed.";
216 return INSTALL_ERROR;
217 }
218 if (pkg_pre_build_fingerprint.empty()) {
219 LOG(ERROR) << "Downgrade package must have a pre-build version set, not allowed.";
220 return INSTALL_ERROR;
221 }
222 }
223
224 return 0;
Alex Deymo4344d632016-08-03 21:03:53 -0700225}
226
227static int
Tianjie Xu8176cf22016-10-18 14:13:07 -0700228update_binary_command(const char* path, ZipArchiveHandle zip, int retry_count,
Alex Deymo4344d632016-08-03 21:03:53 -0700229 int status_fd, std::vector<std::string>* cmd)
230{
231 int ret = check_newer_ab_build(zip);
232 if (ret) {
233 return ret;
234 }
235
236 // For A/B updates we extract the payload properties to a buffer and obtain
237 // the RAW payload offset in the zip file.
Tianjie Xu8176cf22016-10-18 14:13:07 -0700238 ZipString property_name(AB_OTA_PAYLOAD_PROPERTIES);
239 ZipEntry properties_entry;
240 if (FindEntry(zip, property_name, &properties_entry) != 0) {
Tianjie Xuc21edd42016-08-05 18:00:04 -0700241 LOG(ERROR) << "Can't find " << AB_OTA_PAYLOAD_PROPERTIES;
Alex Deymo4344d632016-08-03 21:03:53 -0700242 return INSTALL_CORRUPT;
243 }
Tianjie Xu8176cf22016-10-18 14:13:07 -0700244 std::vector<uint8_t> payload_properties(
245 properties_entry.uncompressed_length);
246 if (ExtractToMemory(zip, &properties_entry, payload_properties.data(),
247 properties_entry.uncompressed_length) != 0) {
Tianjie Xuc21edd42016-08-05 18:00:04 -0700248 LOG(ERROR) << "Can't extract " << AB_OTA_PAYLOAD_PROPERTIES;
Alex Deymo4344d632016-08-03 21:03:53 -0700249 return INSTALL_CORRUPT;
250 }
251
Tianjie Xu8176cf22016-10-18 14:13:07 -0700252 ZipString payload_name(AB_OTA_PAYLOAD);
253 ZipEntry payload_entry;
254 if (FindEntry(zip, payload_name, &payload_entry) != 0) {
Tianjie Xuc21edd42016-08-05 18:00:04 -0700255 LOG(ERROR) << "Can't find " << AB_OTA_PAYLOAD;
Alex Deymo4344d632016-08-03 21:03:53 -0700256 return INSTALL_CORRUPT;
257 }
Tianjie Xu8176cf22016-10-18 14:13:07 -0700258 long payload_offset = payload_entry.offset;
Alex Deymo4344d632016-08-03 21:03:53 -0700259 *cmd = {
260 "/sbin/update_engine_sideload",
261 android::base::StringPrintf("--payload=file://%s", path),
262 android::base::StringPrintf("--offset=%ld", payload_offset),
263 "--headers=" + std::string(payload_properties.begin(),
264 payload_properties.end()),
265 android::base::StringPrintf("--status_fd=%d", status_fd),
266 };
267 return 0;
268}
269
270#else // !AB_OTA_UPDATER
271
272static int
Tianjie Xu8176cf22016-10-18 14:13:07 -0700273update_binary_command(const char* path, ZipArchiveHandle zip, int retry_count,
Alex Deymo4344d632016-08-03 21:03:53 -0700274 int status_fd, std::vector<std::string>* cmd)
275{
276 // On traditional updates we extract the update binary from the package.
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700277 ZipString binary_name(ASSUMED_UPDATE_BINARY_NAME);
278 ZipEntry binary_entry;
279 if (FindEntry(zip, binary_name, &binary_entry) != 0) {
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700280 return INSTALL_CORRUPT;
281 }
282
Doug Zongker10e418d2011-10-28 10:33:05 -0700283 const char* binary = "/tmp/update_binary";
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700284 unlink(binary);
285 int fd = creat(binary, 0755);
286 if (fd < 0) {
Tianjie Xuc21edd42016-08-05 18:00:04 -0700287 PLOG(ERROR) << "Can't make " << binary;
Doug Zongkerd0181b82011-10-19 10:51:12 -0700288 return INSTALL_ERROR;
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700289 }
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700290 int error = ExtractEntryToFile(zip, &binary_entry, fd);
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700291 close(fd);
292
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700293 if (error != 0) {
294 LOG(ERROR) << "Can't copy " << ASSUMED_UPDATE_BINARY_NAME
295 << " : " << ErrorCodeString(error);
Doug Zongkerd0181b82011-10-19 10:51:12 -0700296 return INSTALL_ERROR;
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700297 }
298
Alex Deymo4344d632016-08-03 21:03:53 -0700299 *cmd = {
300 binary,
301 EXPAND(RECOVERY_API_VERSION), // defined in Android.mk
302 std::to_string(status_fd),
303 path,
304 };
305 if (retry_count > 0)
306 cmd->push_back("retry");
307 return 0;
308}
309#endif // !AB_OTA_UPDATER
310
Tianjie Xud8df5482017-03-28 21:39:08 +0000311static void log_max_temperature(int* max_temperature) {
312 CHECK(max_temperature != nullptr);
313 std::mutex mtx;
314 std::unique_lock<std::mutex> lck(mtx);
315 while (finish_log_temperature.wait_for(lck, 20s) == std::cv_status::timeout) {
316 *max_temperature = std::max(*max_temperature, GetMaxValueFromThermalZone());
317 }
318}
319
Alex Deymo4344d632016-08-03 21:03:53 -0700320// If the package contains an update binary, extract it and run it.
Tao Bao20c581e2016-12-28 20:55:51 -0800321static int try_update_binary(const char* path, ZipArchiveHandle zip, bool* wipe_cache,
Tianjie Xud8df5482017-03-28 21:39:08 +0000322 std::vector<std::string>& log_buffer, int retry_count,
323 int* max_temperature) {
Tao Bao20c581e2016-12-28 20:55:51 -0800324 read_source_target_build(zip, log_buffer);
Alex Deymo4344d632016-08-03 21:03:53 -0700325
Tao Bao20c581e2016-12-28 20:55:51 -0800326 int pipefd[2];
327 pipe(pipefd);
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700328
Tao Bao20c581e2016-12-28 20:55:51 -0800329 std::vector<std::string> args;
330 int ret = update_binary_command(path, zip, retry_count, pipefd[1], &args);
331 if (ret) {
332 close(pipefd[0]);
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700333 close(pipefd[1]);
Tao Bao20c581e2016-12-28 20:55:51 -0800334 return ret;
335 }
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700336
Tao Bao20c581e2016-12-28 20:55:51 -0800337 // When executing the update binary contained in the package, the
338 // arguments passed are:
339 //
340 // - the version number for this interface
341 //
342 // - an FD to which the program can write in order to update the
343 // progress bar. The program can write single-line commands:
344 //
345 // progress <frac> <secs>
346 // fill up the next <frac> part of of the progress bar
347 // over <secs> seconds. If <secs> is zero, use
348 // set_progress commands to manually control the
349 // progress of this segment of the bar.
350 //
351 // set_progress <frac>
352 // <frac> should be between 0.0 and 1.0; sets the
353 // progress bar within the segment defined by the most
354 // recent progress command.
355 //
356 // ui_print <string>
357 // display <string> on the screen.
358 //
359 // wipe_cache
360 // a wipe of cache will be performed following a successful
361 // installation.
362 //
363 // clear_display
364 // turn off the text display.
365 //
366 // enable_reboot
367 // packages can explicitly request that they want the user
368 // to be able to reboot during installation (useful for
369 // debugging packages that don't exit).
370 //
371 // retry_update
372 // updater encounters some issue during the update. It requests
373 // a reboot to retry the same package automatically.
374 //
375 // log <string>
376 // updater requests logging the string (e.g. cause of the
377 // failure).
378 //
379 // - the name of the package zip file.
380 //
381 // - an optional argument "retry" if this update is a retry of a failed
382 // update attempt.
383 //
Doug Zongkerd0181b82011-10-19 10:51:12 -0700384
Tao Bao20c581e2016-12-28 20:55:51 -0800385 // Convert the vector to a NULL-terminated char* array suitable for execv.
386 const char* chr_args[args.size() + 1];
387 chr_args[args.size()] = nullptr;
388 for (size_t i = 0; i < args.size(); i++) {
389 chr_args[i] = args[i].c_str();
390 }
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700391
Tao Bao20c581e2016-12-28 20:55:51 -0800392 pid_t pid = fork();
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700393
Tao Bao20c581e2016-12-28 20:55:51 -0800394 if (pid == -1) {
395 close(pipefd[0]);
396 close(pipefd[1]);
397 PLOG(ERROR) << "Failed to fork update binary";
398 return INSTALL_ERROR;
399 }
400
401 if (pid == 0) {
402 umask(022);
403 close(pipefd[0]);
404 execv(chr_args[0], const_cast<char**>(chr_args));
Tianjie Xuab1abae2017-01-30 16:48:52 -0800405 // Bug: 34769056
406 // We shouldn't use LOG/PLOG in the forked process, since they may cause
407 // the child process to hang. This deadlock results from an improperly
408 // copied mutex in the ui functions.
409 fprintf(stdout, "E:Can't run %s (%s)\n", chr_args[0], strerror(errno));
Tao Bao3da88012017-02-03 13:09:23 -0800410 _exit(EXIT_FAILURE);
Tao Bao20c581e2016-12-28 20:55:51 -0800411 }
412 close(pipefd[1]);
413
Tianjie Xud8df5482017-03-28 21:39:08 +0000414 std::thread temperature_logger(log_max_temperature, max_temperature);
415
Tao Bao20c581e2016-12-28 20:55:51 -0800416 *wipe_cache = false;
417 bool retry_update = false;
418
419 char buffer[1024];
420 FILE* from_child = fdopen(pipefd[0], "r");
421 while (fgets(buffer, sizeof(buffer), from_child) != nullptr) {
422 std::string line(buffer);
423 size_t space = line.find_first_of(" \n");
424 std::string command(line.substr(0, space));
425 if (command.empty()) continue;
426
427 // Get rid of the leading and trailing space and/or newline.
428 std::string args = space == std::string::npos ? "" : android::base::Trim(line.substr(space));
429
430 if (command == "progress") {
431 std::vector<std::string> tokens = android::base::Split(args, " ");
432 double fraction;
433 int seconds;
434 if (tokens.size() == 2 && android::base::ParseDouble(tokens[0].c_str(), &fraction) &&
435 android::base::ParseInt(tokens[1], &seconds)) {
436 ui->ShowProgress(fraction * (1 - VERIFICATION_PROGRESS_FRACTION), seconds);
437 } else {
438 LOG(ERROR) << "invalid \"progress\" parameters: " << line;
439 }
440 } else if (command == "set_progress") {
441 std::vector<std::string> tokens = android::base::Split(args, " ");
442 double fraction;
443 if (tokens.size() == 1 && android::base::ParseDouble(tokens[0].c_str(), &fraction)) {
444 ui->SetProgress(fraction);
445 } else {
446 LOG(ERROR) << "invalid \"set_progress\" parameters: " << line;
447 }
448 } else if (command == "ui_print") {
Tao Baof0136422017-01-21 13:03:25 -0800449 ui->PrintOnScreenOnly("%s\n", args.c_str());
Tao Bao20c581e2016-12-28 20:55:51 -0800450 fflush(stdout);
451 } else if (command == "wipe_cache") {
452 *wipe_cache = true;
453 } else if (command == "clear_display") {
454 ui->SetBackground(RecoveryUI::NONE);
455 } else if (command == "enable_reboot") {
456 // packages can explicitly request that they want the user
457 // to be able to reboot during installation (useful for
458 // debugging packages that don't exit).
459 ui->SetEnableReboot(true);
460 } else if (command == "retry_update") {
461 retry_update = true;
462 } else if (command == "log") {
463 if (!args.empty()) {
464 // Save the logging request from updater and write to last_install later.
465 log_buffer.push_back(args);
466 } else {
467 LOG(ERROR) << "invalid \"log\" parameters: " << line;
468 }
469 } else {
470 LOG(ERROR) << "unknown command [" << command << "]";
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700471 }
Tao Bao20c581e2016-12-28 20:55:51 -0800472 }
473 fclose(from_child);
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700474
Tao Bao20c581e2016-12-28 20:55:51 -0800475 int status;
476 waitpid(pid, &status, 0);
Tianjie Xud8df5482017-03-28 21:39:08 +0000477
478 finish_log_temperature.notify_one();
479 temperature_logger.join();
480
Tao Bao20c581e2016-12-28 20:55:51 -0800481 if (retry_update) {
482 return INSTALL_RETRY;
483 }
484 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
485 LOG(ERROR) << "Error in " << path << " (Status " << WEXITSTATUS(status) << ")";
486 return INSTALL_ERROR;
487 }
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700488
Tao Bao20c581e2016-12-28 20:55:51 -0800489 return INSTALL_SUCCESS;
Doug Zongkerb2ee9202009-06-04 10:24:53 -0700490}
491
Doug Zongker469243e2011-04-12 09:28:10 -0700492static int
Tianjie Xudd874b12016-05-13 12:13:15 -0700493really_install_package(const char *path, bool* wipe_cache, bool needs_mount,
Tianjie Xud8df5482017-03-28 21:39:08 +0000494 std::vector<std::string>& log_buffer, int retry_count, int* max_temperature)
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800495{
Doug Zongker02ec6b82012-08-22 17:26:40 -0700496 ui->SetBackground(RecoveryUI::INSTALLING_UPDATE);
Doug Zongker74406302011-10-28 15:13:10 -0700497 ui->Print("Finding update package...\n");
Doug Zongker239ac6a2013-08-20 16:03:25 -0700498 // Give verification half the progress bar...
499 ui->SetProgressType(RecoveryUI::DETERMINATE);
500 ui->ShowProgress(VERIFICATION_PROGRESS_FRACTION, VERIFICATION_PROGRESS_TIME);
Tianjie Xuc21edd42016-08-05 18:00:04 -0700501 LOG(INFO) << "Update location: " << path;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800502
Doug Zongker99916f02014-01-13 14:16:58 -0800503 // Map the update package into memory.
504 ui->Print("Opening update package...\n");
505
Doug Zongker075ad802014-06-26 15:35:51 -0700506 if (path && needs_mount) {
Doug Zongker99916f02014-01-13 14:16:58 -0800507 if (path[0] == '@') {
508 ensure_path_mounted(path+1);
509 } else {
510 ensure_path_mounted(path);
511 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800512 }
513
Doug Zongker99916f02014-01-13 14:16:58 -0800514 MemMapping map;
515 if (sysMapFile(path, &map) != 0) {
Tianjie Xuc21edd42016-08-05 18:00:04 -0700516 LOG(ERROR) << "failed to map file";
Doug Zongker99916f02014-01-13 14:16:58 -0800517 return INSTALL_CORRUPT;
518 }
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800519
Elliott Hughes8febafa2016-04-13 16:39:56 -0700520 // Verify package.
Yabin Cui6faf0262016-06-09 14:09:39 -0700521 if (!verify_package(map.addr, map.length)) {
Tianjie Xu16255832016-04-30 11:49:59 -0700522 log_buffer.push_back(android::base::StringPrintf("error: %d", kZipVerificationFailure));
Doug Zongker99916f02014-01-13 14:16:58 -0800523 sysReleaseMap(&map);
Doug Zongker60151a22009-08-12 18:30:03 -0700524 return INSTALL_CORRUPT;
525 }
526
Elliott Hughes8febafa2016-04-13 16:39:56 -0700527 // Try to open the package.
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700528 ZipArchiveHandle zip;
Tianjie Xu8176cf22016-10-18 14:13:07 -0700529 int err = OpenArchiveFromMemory(map.addr, map.length, path, &zip);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800530 if (err != 0) {
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700531 LOG(ERROR) << "Can't open " << path << " : " << ErrorCodeString(err);
Tianjie Xu16255832016-04-30 11:49:59 -0700532 log_buffer.push_back(android::base::StringPrintf("error: %d", kZipOpenFailure));
533
Doug Zongker99916f02014-01-13 14:16:58 -0800534 sysReleaseMap(&map);
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700535 CloseArchive(zip);
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800536 return INSTALL_CORRUPT;
537 }
538
Elliott Hughes8febafa2016-04-13 16:39:56 -0700539 // Verify and install the contents of the package.
Doug Zongker74406302011-10-28 15:13:10 -0700540 ui->Print("Installing update...\n");
Tianjie Xu7ce287d2016-05-31 09:29:49 -0700541 if (retry_count > 0) {
542 ui->Print("Retry attempt: %d\n", retry_count);
543 }
Doug Zongkerc704e062014-05-23 08:40:35 -0700544 ui->SetEnableReboot(false);
Tianjie Xud8df5482017-03-28 21:39:08 +0000545 int result = try_update_binary(path, zip, wipe_cache, log_buffer, retry_count, max_temperature);
Doug Zongkerc704e062014-05-23 08:40:35 -0700546 ui->SetEnableReboot(true);
Doug Zongker075ad802014-06-26 15:35:51 -0700547 ui->Print("\n");
Doug Zongker99916f02014-01-13 14:16:58 -0800548
549 sysReleaseMap(&map);
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700550 CloseArchive(zip);
Doug Zongker99916f02014-01-13 14:16:58 -0800551 return result;
The Android Open Source Projectc24a8e62009-03-03 19:28:42 -0800552}
Doug Zongker469243e2011-04-12 09:28:10 -0700553
554int
Tao Bao145d8612015-03-25 15:51:15 -0700555install_package(const char* path, bool* wipe_cache, const char* install_file,
Tianjie Xu16255832016-04-30 11:49:59 -0700556 bool needs_mount, int retry_count)
Doug Zongker469243e2011-04-12 09:28:10 -0700557{
Tao Bao682c34b2015-04-07 17:16:35 -0700558 modified_flash = true;
Tianjie Xudd874b12016-05-13 12:13:15 -0700559 auto start = std::chrono::system_clock::now();
Tao Bao682c34b2015-04-07 17:16:35 -0700560
Tianjie Xud8df5482017-03-28 21:39:08 +0000561 int start_temperature = GetMaxValueFromThermalZone();
562 int max_temperature = start_temperature;
563
Doug Zongker239ac6a2013-08-20 16:03:25 -0700564 int result;
Tianjie Xudd874b12016-05-13 12:13:15 -0700565 std::vector<std::string> log_buffer;
Doug Zongker239ac6a2013-08-20 16:03:25 -0700566 if (setup_install_mounts() != 0) {
Tianjie Xuc21edd42016-08-05 18:00:04 -0700567 LOG(ERROR) << "failed to set up expected mounts for install; aborting";
Doug Zongker239ac6a2013-08-20 16:03:25 -0700568 result = INSTALL_ERROR;
569 } else {
Tianjie Xud8df5482017-03-28 21:39:08 +0000570 result = really_install_package(path, wipe_cache, needs_mount, log_buffer, retry_count,
571 &max_temperature);
Doug Zongker239ac6a2013-08-20 16:03:25 -0700572 }
Tianjie Xudd874b12016-05-13 12:13:15 -0700573
Tao Baobadaac42016-09-26 11:39:14 -0700574 // Measure the time spent to apply OTA update in seconds.
575 std::chrono::duration<double> duration = std::chrono::system_clock::now() - start;
576 int time_total = static_cast<int>(duration.count());
Tianjie Xudd874b12016-05-13 12:13:15 -0700577
Tianjie Xud08893c2017-03-24 14:13:56 -0700578 bool has_cache = volume_for_path("/cache") != nullptr;
579 // Skip logging the uncrypt_status on devices without /cache.
580 if (has_cache) {
581 if (ensure_path_mounted(UNCRYPT_STATUS) != 0) {
Tao Baobadaac42016-09-26 11:39:14 -0700582 LOG(WARNING) << "Can't mount " << UNCRYPT_STATUS;
Tianjie Xud08893c2017-03-24 14:13:56 -0700583 } else {
Tao Baobadaac42016-09-26 11:39:14 -0700584 std::string uncrypt_status;
585 if (!android::base::ReadFileToString(UNCRYPT_STATUS, &uncrypt_status)) {
Tianjie Xud08893c2017-03-24 14:13:56 -0700586 PLOG(WARNING) << "failed to read uncrypt status";
Tianjie Xu68fc81e2016-09-24 15:31:34 -0700587 } else if (!android::base::StartsWith(uncrypt_status, "uncrypt_")) {
Tianjie Xud08893c2017-03-24 14:13:56 -0700588 LOG(WARNING) << "corrupted uncrypt_status: " << uncrypt_status;
Tianjie Xue16e7992016-09-09 10:55:44 -0700589 } else {
Tianjie Xud08893c2017-03-24 14:13:56 -0700590 log_buffer.push_back(android::base::Trim(uncrypt_status));
Tianjie Xue16e7992016-09-09 10:55:44 -0700591 }
Tianjie Xud08893c2017-03-24 14:13:56 -0700592 }
Doug Zongker469243e2011-04-12 09:28:10 -0700593 }
Tao Baobadaac42016-09-26 11:39:14 -0700594
595 // The first two lines need to be the package name and install result.
596 std::vector<std::string> log_header = {
597 path,
598 result == INSTALL_SUCCESS ? "1" : "0",
599 "time_total: " + std::to_string(time_total),
600 "retry: " + std::to_string(retry_count),
601 };
Tianjie Xud8df5482017-03-28 21:39:08 +0000602
603 int end_temperature = GetMaxValueFromThermalZone();
604 max_temperature = std::max(end_temperature, max_temperature);
605 if (start_temperature > 0) {
606 log_buffer.push_back("temperature_start: " + std::to_string(start_temperature));
607 }
608 if (end_temperature > 0) {
609 log_buffer.push_back("temperature_end: " + std::to_string(end_temperature));
610 }
611 if (max_temperature > 0) {
612 log_buffer.push_back("temperature_max: " + std::to_string(max_temperature));
613 }
614
Tao Baobadaac42016-09-26 11:39:14 -0700615 std::string log_content = android::base::Join(log_header, "\n") + "\n" +
Tianjie Xud8df5482017-03-28 21:39:08 +0000616 android::base::Join(log_buffer, "\n") + "\n";
Tao Baobadaac42016-09-26 11:39:14 -0700617 if (!android::base::WriteStringToFile(log_content, install_file)) {
618 PLOG(ERROR) << "failed to write " << install_file;
619 }
620
621 // Write a copy into last_log.
622 LOG(INFO) << log_content;
623
Doug Zongker469243e2011-04-12 09:28:10 -0700624 return result;
625}
Yabin Cui6faf0262016-06-09 14:09:39 -0700626
627bool verify_package(const unsigned char* package_data, size_t package_size) {
Tao Bao5e535012017-03-16 17:37:38 -0700628 std::vector<Certificate> loadedKeys;
629 if (!load_keys(PUBLIC_KEYS_FILE, loadedKeys)) {
630 LOG(ERROR) << "Failed to load keys";
631 return false;
632 }
633 LOG(INFO) << loadedKeys.size() << " key(s) loaded from " << PUBLIC_KEYS_FILE;
Yabin Cui6faf0262016-06-09 14:09:39 -0700634
Tao Bao5e535012017-03-16 17:37:38 -0700635 // Verify package.
636 ui->Print("Verifying update package...\n");
637 auto t0 = std::chrono::system_clock::now();
Tao Bao76fdb242017-03-20 17:09:13 -0700638 int err = verify_file(package_data, package_size, loadedKeys,
Tao Bao5e535012017-03-16 17:37:38 -0700639 std::bind(&RecoveryUI::SetProgress, ui, std::placeholders::_1));
640 std::chrono::duration<double> duration = std::chrono::system_clock::now() - t0;
641 ui->Print("Update package verification took %.1f s (result %d).\n", duration.count(), err);
642 if (err != VERIFY_SUCCESS) {
643 LOG(ERROR) << "Signature verification failed";
644 LOG(ERROR) << "error: " << kZipVerificationFailure;
645 return false;
646 }
647 return true;
Yabin Cui6faf0262016-06-09 14:09:39 -0700648}