blob: 5f3f675b1cba1633539112dc227064a473a263a3 [file] [log] [blame]
Doug Zongker9931f7f2009-06-10 14:11:53 -07001/*
2 * Copyright (C) 2009 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 Bao0c7839a2016-10-10 15:48:37 -070017#include "updater/install.h"
18
Doug Zongkerfbf3c102009-06-24 09:36:20 -070019#include <ctype.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070020#include <errno.h>
Tao Bao361342c2016-02-08 11:15:50 -080021#include <fcntl.h>
22#include <ftw.h>
23#include <inttypes.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070024#include <stdarg.h>
Doug Zongkerfbf3c102009-06-24 09:36:20 -070025#include <stdio.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070026#include <stdlib.h>
27#include <string.h>
Tao Bao361342c2016-02-08 11:15:50 -080028#include <sys/capability.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070029#include <sys/mount.h>
30#include <sys/stat.h>
31#include <sys/types.h>
Doug Zongkera3f89ea2009-09-10 14:10:48 -070032#include <sys/wait.h>
Nick Kralevich5dbdef02013-09-07 14:41:06 -070033#include <sys/xattr.h>
Tao Bao361342c2016-02-08 11:15:50 -080034#include <time.h>
35#include <unistd.h>
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -070036#include <utime.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070037
Yabin Cui64be2132016-02-03 18:16:02 -080038#include <memory>
Tao Bao361342c2016-02-08 11:15:50 -080039#include <string>
Yabin Cui64be2132016-02-03 18:16:02 -080040#include <vector>
41
Elliott Hughes4b166f02015-12-04 15:30:20 -080042#include <android-base/parseint.h>
Elliott Hughescb220402016-09-23 15:30:55 -070043#include <android-base/properties.h>
Elliott Hughes4b166f02015-12-04 15:30:20 -080044#include <android-base/strings.h>
45#include <android-base/stringprintf.h>
Tao Bao0c7839a2016-10-10 15:48:37 -070046#include <cutils/android_reboot.h>
Tao Baode40ba52016-10-05 23:17:01 -070047#include <ext4_utils/make_ext4fs.h>
48#include <ext4_utils/wipe.h>
Tao Bao361342c2016-02-08 11:15:50 -080049#include <openssl/sha.h>
Elliott Hughes4bbd5bf2016-04-01 18:24:39 -070050#include <selinux/label.h>
51#include <selinux/selinux.h>
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -070052#include <ziparchive/zip_archive.h>
Tao Bao1107d962015-09-09 17:16:55 -070053
Doug Zongkerc87bab12013-11-25 13:53:25 -080054#include "applypatch/applypatch.h"
Tao Bao0c7839a2016-10-10 15:48:37 -070055#include "bootloader.h"
Doug Zongker9931f7f2009-06-10 14:11:53 -070056#include "edify/expr.h"
Tianjie Xu16255832016-04-30 11:49:59 -070057#include "error_code.h"
Elliott Hughes63a31922016-06-09 17:41:22 -070058#include "mounts.h"
Jed Estep39c1b5e2015-12-15 16:04:53 -080059#include "ota_io.h"
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -070060#include "otautil/DirUtil.h"
61#include "otautil/ZipUtil.h"
Tao Bao361342c2016-02-08 11:15:50 -080062#include "print_sha1.h"
Michael Rungeacf47db2014-11-21 00:12:28 -080063#include "tune2fs.h"
Tao Bao0c7839a2016-10-10 15:48:37 -070064#include "updater/updater.h"
Doug Zongker8edb00c2009-06-11 17:21:44 -070065
Tao Bao1107d962015-09-09 17:16:55 -070066// Send over the buffer to recovery though the command pipe.
67static void uiPrint(State* state, const std::string& buffer) {
68 UpdaterInfo* ui = reinterpret_cast<UpdaterInfo*>(state->cookie);
Tao Baob6918c72015-05-19 17:02:16 -070069
Tao Bao1107d962015-09-09 17:16:55 -070070 // "line1\nline2\n" will be split into 3 tokens: "line1", "line2" and "".
71 // So skip sending empty strings to UI.
72 std::vector<std::string> lines = android::base::Split(buffer, "\n");
73 for (auto& line: lines) {
74 if (!line.empty()) {
75 fprintf(ui->cmd_pipe, "ui_print %s\n", line.c_str());
76 fprintf(ui->cmd_pipe, "ui_print\n");
77 }
78 }
79
80 // On the updater side, we need to dump the contents to stderr (which has
81 // been redirected to the log file). Because the recovery will only print
82 // the contents to screen when processing pipe command ui_print.
83 fprintf(stderr, "%s", buffer.c_str());
Michael Runged4a63422014-10-22 19:48:41 -070084}
85
Elliott Hughes83ce7552016-06-30 09:28:42 -070086void uiPrintf(State* _Nonnull state, const char* _Nonnull format, ...) {
Tao Bao1107d962015-09-09 17:16:55 -070087 std::string error_msg;
88
Michael Runged4a63422014-10-22 19:48:41 -070089 va_list ap;
90 va_start(ap, format);
Tao Bao1107d962015-09-09 17:16:55 -070091 android::base::StringAppendV(&error_msg, format, ap);
Michael Runged4a63422014-10-22 19:48:41 -070092 va_end(ap);
Tao Bao1107d962015-09-09 17:16:55 -070093
Michael Runged4a63422014-10-22 19:48:41 -070094 uiPrint(state, error_msg);
95}
96
Tao Bao0c7839a2016-10-10 15:48:37 -070097// Create all parent directories of name, if necessary.
98static int make_parents(char* name) {
99 char* p;
100 for (p = name + (strlen(name)-1); p > name; --p) {
101 if (*p != '/') continue;
102 *p = '\0';
103 if (make_parents(name) < 0) return -1;
104 int result = mkdir(name, 0700);
105 if (result == 0) printf("created [%s]\n", name);
106 *p = '/';
107 if (result == 0 || errno == EEXIST) {
108 // successfully created or already existed; we're done
109 return 0;
110 } else {
111 printf("failed to mkdir %s: %s\n", name, strerror(errno));
112 return -1;
113 }
114 }
115 return 0;
116}
117
Doug Zongker3d177d02010-07-01 09:18:44 -0700118// mount(fs_type, partition_type, location, mount_point)
Doug Zongker9931f7f2009-06-10 14:11:53 -0700119//
Doug Zongker3d177d02010-07-01 09:18:44 -0700120// fs_type="ext4" partition_type="EMMC" location=device
Doug Zongker512536a2010-02-17 16:11:44 -0800121Value* MountFn(const char* name, State* state, int argc, Expr* argv[]) {
Tianjie Xuaced5d92016-10-12 10:55:04 -0700122 char* result = nullptr;
Michael Runge168f7772014-10-22 17:05:08 -0700123 if (argc != 4 && argc != 5) {
Tianjie Xu16255832016-04-30 11:49:59 -0700124 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 4-5 args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700125 }
Doug Zongker3d177d02010-07-01 09:18:44 -0700126 char* fs_type;
127 char* partition_type;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700128 char* location;
129 char* mount_point;
Michael Runge168f7772014-10-22 17:05:08 -0700130 char* mount_options;
131 bool has_mount_options;
132 if (argc == 5) {
133 has_mount_options = true;
134 if (ReadArgs(state, argv, 5, &fs_type, &partition_type,
135 &location, &mount_point, &mount_options) < 0) {
136 return NULL;
137 }
138 } else {
139 has_mount_options = false;
140 if (ReadArgs(state, argv, 4, &fs_type, &partition_type,
Doug Zongker3d177d02010-07-01 09:18:44 -0700141 &location, &mount_point) < 0) {
Michael Runge168f7772014-10-22 17:05:08 -0700142 return NULL;
143 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700144 }
145
Doug Zongker3d177d02010-07-01 09:18:44 -0700146 if (strlen(fs_type) == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700147 ErrorAbort(state, kArgsParsingFailure, "fs_type argument to %s() can't be empty", name);
Doug Zongker3d177d02010-07-01 09:18:44 -0700148 goto done;
149 }
150 if (strlen(partition_type) == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700151 ErrorAbort(state, kArgsParsingFailure, "partition_type argument to %s() can't be empty",
Doug Zongker3d177d02010-07-01 09:18:44 -0700152 name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700153 goto done;
154 }
155 if (strlen(location) == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700156 ErrorAbort(state, kArgsParsingFailure, "location argument to %s() can't be empty", name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700157 goto done;
158 }
159 if (strlen(mount_point) == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700160 ErrorAbort(state, kArgsParsingFailure, "mount_point argument to %s() can't be empty",
161 name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700162 goto done;
163 }
164
Tao Baoba9a42a2015-06-23 23:23:33 -0700165 {
166 char *secontext = NULL;
Stephen Smalley779701d2012-02-09 14:13:23 -0500167
Tao Baoba9a42a2015-06-23 23:23:33 -0700168 if (sehandle) {
169 selabel_lookup(sehandle, &secontext, mount_point, 0755);
170 setfscreatecon(secontext);
171 }
Stephen Smalley779701d2012-02-09 14:13:23 -0500172
Tao Baoba9a42a2015-06-23 23:23:33 -0700173 mkdir(mount_point, 0755);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700174
Tao Baoba9a42a2015-06-23 23:23:33 -0700175 if (secontext) {
176 freecon(secontext);
177 setfscreatecon(NULL);
178 }
Stephen Smalley779701d2012-02-09 14:13:23 -0500179 }
Stephen Smalley779701d2012-02-09 14:13:23 -0500180
Elliott Hughes63a31922016-06-09 17:41:22 -0700181 if (mount(location, mount_point, fs_type,
182 MS_NOATIME | MS_NODEV | MS_NODIRATIME,
183 has_mount_options ? mount_options : "") < 0) {
184 uiPrintf(state, "%s: failed to mount %s at %s: %s\n",
185 name, location, mount_point, strerror(errno));
186 result = strdup("");
Doug Zongker9931f7f2009-06-10 14:11:53 -0700187 } else {
Elliott Hughes63a31922016-06-09 17:41:22 -0700188 result = mount_point;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700189 }
190
191done:
Doug Zongker3d177d02010-07-01 09:18:44 -0700192 free(fs_type);
193 free(partition_type);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700194 free(location);
195 if (result != mount_point) free(mount_point);
Michael Runge168f7772014-10-22 17:05:08 -0700196 if (has_mount_options) free(mount_options);
Doug Zongker512536a2010-02-17 16:11:44 -0800197 return StringValue(result);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700198}
199
Doug Zongker8edb00c2009-06-11 17:21:44 -0700200
201// is_mounted(mount_point)
Doug Zongker512536a2010-02-17 16:11:44 -0800202Value* IsMountedFn(const char* name, State* state, int argc, Expr* argv[]) {
Tianjie Xuaced5d92016-10-12 10:55:04 -0700203 char* result = nullptr;
Doug Zongker8edb00c2009-06-11 17:21:44 -0700204 if (argc != 1) {
Tianjie Xu16255832016-04-30 11:49:59 -0700205 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700206 }
207 char* mount_point;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700208 if (ReadArgs(state, argv, 1, &mount_point) < 0) {
Doug Zongker8edb00c2009-06-11 17:21:44 -0700209 return NULL;
210 }
211 if (strlen(mount_point) == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700212 ErrorAbort(state, kArgsParsingFailure, "mount_point argument to unmount() can't be empty");
Doug Zongker8edb00c2009-06-11 17:21:44 -0700213 goto done;
214 }
215
216 scan_mounted_volumes();
Tao Baoba9a42a2015-06-23 23:23:33 -0700217 {
Elliott Hughes63a31922016-06-09 17:41:22 -0700218 MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point);
Tao Baoba9a42a2015-06-23 23:23:33 -0700219 if (vol == NULL) {
220 result = strdup("");
221 } else {
222 result = mount_point;
223 }
Doug Zongker8edb00c2009-06-11 17:21:44 -0700224 }
225
226done:
227 if (result != mount_point) free(mount_point);
Doug Zongker512536a2010-02-17 16:11:44 -0800228 return StringValue(result);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700229}
230
231
Doug Zongker512536a2010-02-17 16:11:44 -0800232Value* UnmountFn(const char* name, State* state, int argc, Expr* argv[]) {
Tianjie Xuaced5d92016-10-12 10:55:04 -0700233 char* result = nullptr;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700234 if (argc != 1) {
Tianjie Xu16255832016-04-30 11:49:59 -0700235 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700236 }
237 char* mount_point;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700238 if (ReadArgs(state, argv, 1, &mount_point) < 0) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700239 return NULL;
240 }
241 if (strlen(mount_point) == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700242 ErrorAbort(state, kArgsParsingFailure, "mount_point argument to unmount() can't be empty");
Doug Zongker9931f7f2009-06-10 14:11:53 -0700243 goto done;
244 }
245
246 scan_mounted_volumes();
Tao Baoba9a42a2015-06-23 23:23:33 -0700247 {
Elliott Hughes63a31922016-06-09 17:41:22 -0700248 MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point);
Tao Baoba9a42a2015-06-23 23:23:33 -0700249 if (vol == NULL) {
250 uiPrintf(state, "unmount of %s failed; no such volume\n", mount_point);
251 result = strdup("");
252 } else {
253 int ret = unmount_mounted_volume(vol);
254 if (ret != 0) {
255 uiPrintf(state, "unmount of %s failed (%d): %s\n",
256 mount_point, ret, strerror(errno));
257 }
258 result = mount_point;
Michael Runge5ddf4292014-10-24 14:14:41 -0700259 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700260 }
261
262done:
263 if (result != mount_point) free(mount_point);
Doug Zongker512536a2010-02-17 16:11:44 -0800264 return StringValue(result);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700265}
Doug Zongker8edb00c2009-06-11 17:21:44 -0700266
JP Abgrall37aedb32014-06-16 19:07:39 -0700267static int exec_cmd(const char* path, char* const argv[]) {
268 int status;
269 pid_t child;
270 if ((child = vfork()) == 0) {
271 execv(path, argv);
272 _exit(-1);
273 }
274 waitpid(child, &status, 0);
275 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
276 printf("%s failed with status %d\n", path, WEXITSTATUS(status));
277 }
278 return WEXITSTATUS(status);
279}
280
Doug Zongker8edb00c2009-06-11 17:21:44 -0700281
Stephen Smalley779701d2012-02-09 14:13:23 -0500282// format(fs_type, partition_type, location, fs_size, mount_point)
Doug Zongker9931f7f2009-06-10 14:11:53 -0700283//
Stephen Smalley779701d2012-02-09 14:13:23 -0500284// fs_type="ext4" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
JP Abgrall37aedb32014-06-16 19:07:39 -0700285// fs_type="f2fs" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
286// if fs_size == 0, then make fs uses the entire partition.
Ken Sumrall8f132ed2011-01-14 18:55:05 -0800287// if fs_size > 0, that is the size to use
JP Abgrall37aedb32014-06-16 19:07:39 -0700288// if fs_size < 0, then reserve that many bytes at the end of the partition (not for "f2fs")
Doug Zongker512536a2010-02-17 16:11:44 -0800289Value* FormatFn(const char* name, State* state, int argc, Expr* argv[]) {
Tianjie Xuaced5d92016-10-12 10:55:04 -0700290 char* result = nullptr;
Stephen Smalley516e4e22012-04-03 13:35:11 -0400291 if (argc != 5) {
Tianjie Xu16255832016-04-30 11:49:59 -0700292 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 5 args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700293 }
Doug Zongker3d177d02010-07-01 09:18:44 -0700294 char* fs_type;
295 char* partition_type;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700296 char* location;
Ken Sumrall8f132ed2011-01-14 18:55:05 -0800297 char* fs_size;
Stephen Smalley516e4e22012-04-03 13:35:11 -0400298 char* mount_point;
Stephen Smalley779701d2012-02-09 14:13:23 -0500299
Stephen Smalley779701d2012-02-09 14:13:23 -0500300 if (ReadArgs(state, argv, 5, &fs_type, &partition_type, &location, &fs_size, &mount_point) < 0) {
301 return NULL;
302 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700303
Doug Zongker3d177d02010-07-01 09:18:44 -0700304 if (strlen(fs_type) == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700305 ErrorAbort(state, kArgsParsingFailure, "fs_type argument to %s() can't be empty", name);
Doug Zongker3d177d02010-07-01 09:18:44 -0700306 goto done;
307 }
308 if (strlen(partition_type) == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700309 ErrorAbort(state, kArgsParsingFailure, "partition_type argument to %s() can't be empty",
Doug Zongker3d177d02010-07-01 09:18:44 -0700310 name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700311 goto done;
312 }
313 if (strlen(location) == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700314 ErrorAbort(state, kArgsParsingFailure, "location argument to %s() can't be empty", name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700315 goto done;
316 }
317
Stephen Smalley516e4e22012-04-03 13:35:11 -0400318 if (strlen(mount_point) == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700319 ErrorAbort(state, kArgsParsingFailure, "mount_point argument to %s() can't be empty",
320 name);
Stephen Smalley779701d2012-02-09 14:13:23 -0500321 goto done;
322 }
Stephen Smalley779701d2012-02-09 14:13:23 -0500323
Elliott Hughes63a31922016-06-09 17:41:22 -0700324 if (strcmp(fs_type, "ext4") == 0) {
Stephen Smalley779701d2012-02-09 14:13:23 -0500325 int status = make_ext4fs(location, atoll(fs_size), mount_point, sehandle);
Doug Zongker3d177d02010-07-01 09:18:44 -0700326 if (status != 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700327 printf("%s: make_ext4fs failed (%d) on %s",
Doug Zongker3d177d02010-07-01 09:18:44 -0700328 name, status, location);
329 result = strdup("");
330 goto done;
331 }
332 result = location;
JP Abgrall37aedb32014-06-16 19:07:39 -0700333 } else if (strcmp(fs_type, "f2fs") == 0) {
334 char *num_sectors;
335 if (asprintf(&num_sectors, "%lld", atoll(fs_size) / 512) <= 0) {
336 printf("format_volume: failed to create %s command for %s\n", fs_type, location);
337 result = strdup("");
338 goto done;
339 }
340 const char *f2fs_path = "/sbin/mkfs.f2fs";
341 const char* const f2fs_argv[] = {"mkfs.f2fs", "-t", "-d1", location, num_sectors, NULL};
342 int status = exec_cmd(f2fs_path, (char* const*)f2fs_argv);
343 free(num_sectors);
344 if (status != 0) {
345 printf("%s: mkfs.f2fs failed (%d) on %s",
346 name, status, location);
347 result = strdup("");
348 goto done;
349 }
350 result = location;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700351 } else {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700352 printf("%s: unsupported fs_type \"%s\" partition_type \"%s\"",
Doug Zongker3d177d02010-07-01 09:18:44 -0700353 name, fs_type, partition_type);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700354 }
355
356done:
Doug Zongker3d177d02010-07-01 09:18:44 -0700357 free(fs_type);
358 free(partition_type);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700359 if (result != location) free(location);
Doug Zongker512536a2010-02-17 16:11:44 -0800360 return StringValue(result);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700361}
362
Michael Rungece7ca712013-11-06 17:42:20 -0800363Value* RenameFn(const char* name, State* state, int argc, Expr* argv[]) {
Tianjie Xuaced5d92016-10-12 10:55:04 -0700364 char* result = nullptr;
Michael Rungece7ca712013-11-06 17:42:20 -0800365 if (argc != 2) {
Tianjie Xu16255832016-04-30 11:49:59 -0700366 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
Michael Rungece7ca712013-11-06 17:42:20 -0800367 }
368
369 char* src_name;
370 char* dst_name;
371
372 if (ReadArgs(state, argv, 2, &src_name, &dst_name) < 0) {
373 return NULL;
374 }
375 if (strlen(src_name) == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700376 ErrorAbort(state, kArgsParsingFailure, "src_name argument to %s() can't be empty", name);
Michael Rungece7ca712013-11-06 17:42:20 -0800377 goto done;
378 }
379 if (strlen(dst_name) == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700380 ErrorAbort(state, kArgsParsingFailure, "dst_name argument to %s() can't be empty", name);
Michael Rungece7ca712013-11-06 17:42:20 -0800381 goto done;
382 }
Michael Rungea91ecc52014-07-21 17:40:02 -0700383 if (make_parents(dst_name) != 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700384 ErrorAbort(state, kFileRenameFailure, "Creating parent of %s failed, error %s",
Michael Rungea91ecc52014-07-21 17:40:02 -0700385 dst_name, strerror(errno));
Michael Runge2f0ef732014-10-22 14:28:23 -0700386 } else if (access(dst_name, F_OK) == 0 && access(src_name, F_OK) != 0) {
387 // File was already moved
388 result = dst_name;
Michael Rungea91ecc52014-07-21 17:40:02 -0700389 } else if (rename(src_name, dst_name) != 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700390 ErrorAbort(state, kFileRenameFailure, "Rename of %s to %s failed, error %s",
Michael Rungece7ca712013-11-06 17:42:20 -0800391 src_name, dst_name, strerror(errno));
392 } else {
393 result = dst_name;
394 }
395
396done:
397 free(src_name);
398 if (result != dst_name) free(dst_name);
399 return StringValue(result);
400}
Doug Zongker8edb00c2009-06-11 17:21:44 -0700401
Doug Zongker512536a2010-02-17 16:11:44 -0800402Value* DeleteFn(const char* name, State* state, int argc, Expr* argv[]) {
Tianjie Xuaced5d92016-10-12 10:55:04 -0700403 std::vector<std::string> paths;
Tao Baoba9a42a2015-06-23 23:23:33 -0700404 for (int i = 0; i < argc; ++i) {
Tianjie Xuaced5d92016-10-12 10:55:04 -0700405 if (!Evaluate(state, argv[i], &paths[i])) {
406 return nullptr;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700407 }
408 }
409
410 bool recursive = (strcmp(name, "delete_recursive") == 0);
411
412 int success = 0;
Tao Baoba9a42a2015-06-23 23:23:33 -0700413 for (int i = 0; i < argc; ++i) {
Tianjie Xuaced5d92016-10-12 10:55:04 -0700414 if ((recursive ? dirUnlinkHierarchy(paths[i].c_str()) : unlink(paths[i].c_str())) == 0) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700415 ++success;
Tianjie Xuaced5d92016-10-12 10:55:04 -0700416 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700417 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700418
Tianjie Xuaced5d92016-10-12 10:55:04 -0700419 return StringValue(android::base::StringPrintf("%d", success));
Doug Zongker9931f7f2009-06-10 14:11:53 -0700420}
421
Doug Zongker8edb00c2009-06-11 17:21:44 -0700422
Doug Zongker512536a2010-02-17 16:11:44 -0800423Value* ShowProgressFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700424 if (argc != 2) {
Tianjie Xu16255832016-04-30 11:49:59 -0700425 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700426 }
427 char* frac_str;
428 char* sec_str;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700429 if (ReadArgs(state, argv, 2, &frac_str, &sec_str) < 0) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700430 return NULL;
431 }
432
433 double frac = strtod(frac_str, NULL);
Tao Baob15fd222015-09-24 11:10:51 -0700434 int sec;
435 android::base::ParseInt(sec_str, &sec);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700436
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700437 UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700438 fprintf(ui->cmd_pipe, "progress %f %d\n", frac, sec);
439
Doug Zongker9931f7f2009-06-10 14:11:53 -0700440 free(sec_str);
Doug Zongker512536a2010-02-17 16:11:44 -0800441 return StringValue(frac_str);
Doug Zongkerfbf3c102009-06-24 09:36:20 -0700442}
443
Doug Zongker512536a2010-02-17 16:11:44 -0800444Value* SetProgressFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkerfbf3c102009-06-24 09:36:20 -0700445 if (argc != 1) {
Tianjie Xu16255832016-04-30 11:49:59 -0700446 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
Doug Zongkerfbf3c102009-06-24 09:36:20 -0700447 }
448 char* frac_str;
449 if (ReadArgs(state, argv, 1, &frac_str) < 0) {
450 return NULL;
451 }
452
453 double frac = strtod(frac_str, NULL);
454
455 UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
456 fprintf(ui->cmd_pipe, "set_progress %f\n", frac);
457
Doug Zongker512536a2010-02-17 16:11:44 -0800458 return StringValue(frac_str);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700459}
460
Doug Zongker8edb00c2009-06-11 17:21:44 -0700461// package_extract_dir(package_path, destination_path)
Doug Zongker512536a2010-02-17 16:11:44 -0800462Value* PackageExtractDirFn(const char* name, State* state,
Doug Zongker8edb00c2009-06-11 17:21:44 -0700463 int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700464 if (argc != 2) {
Tianjie Xu16255832016-04-30 11:49:59 -0700465 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700466 }
467 char* zip_path;
468 char* dest_path;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700469 if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700470
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700471 ZipArchiveHandle za = ((UpdaterInfo*)(state->cookie))->package_zip;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700472
473 // To create a consistent system image, never use the clock for timestamps.
474 struct utimbuf timestamp = { 1217592000, 1217592000 }; // 8/1/2008 default
475
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700476 bool success = ExtractPackageRecursive(za, zip_path, dest_path, &timestamp, sehandle);
477
Doug Zongker9931f7f2009-06-10 14:11:53 -0700478 free(zip_path);
479 free(dest_path);
Tianjie Xuaced5d92016-10-12 10:55:04 -0700480 return StringValue(success ? "t" : "");
Doug Zongker9931f7f2009-06-10 14:11:53 -0700481}
482
Doug Zongker8edb00c2009-06-11 17:21:44 -0700483
484// package_extract_file(package_path, destination_path)
Doug Zongker6aece332010-02-01 14:40:12 -0800485// or
486// package_extract_file(package_path)
487// to return the entire contents of the file as the result of this
Doug Zongker512536a2010-02-17 16:11:44 -0800488// function (the char* returned is actually a FileContents*).
489Value* PackageExtractFileFn(const char* name, State* state,
Doug Zongker8edb00c2009-06-11 17:21:44 -0700490 int argc, Expr* argv[]) {
Doug Zongker5f875bf2014-08-22 14:53:43 -0700491 if (argc < 1 || argc > 2) {
Tianjie Xu16255832016-04-30 11:49:59 -0700492 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 or 2 args, got %d",
Doug Zongker6aece332010-02-01 14:40:12 -0800493 name, argc);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700494 }
Doug Zongker8edb00c2009-06-11 17:21:44 -0700495 bool success = false;
Doug Zongker43772d22014-06-09 14:13:19 -0700496
Doug Zongker5f875bf2014-08-22 14:53:43 -0700497 if (argc == 2) {
498 // The two-argument version extracts to a file.
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -0800499
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700500 ZipArchiveHandle za = ((UpdaterInfo*)(state->cookie))->package_zip;
Doug Zongker8edb00c2009-06-11 17:21:44 -0700501
Doug Zongker6aece332010-02-01 14:40:12 -0800502 char* zip_path;
503 char* dest_path;
Doug Zongker5f875bf2014-08-22 14:53:43 -0700504 if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL;
Doug Zongker6aece332010-02-01 14:40:12 -0800505
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700506 ZipString zip_string_path(zip_path);
507 ZipEntry entry;
508 if (FindEntry(za, zip_string_path, &entry) != 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700509 printf("%s: no %s in package\n", name, zip_path);
Doug Zongker6aece332010-02-01 14:40:12 -0800510 goto done2;
511 }
512
Tao Baoba9a42a2015-06-23 23:23:33 -0700513 {
Alistair Strachan733285f2016-05-05 16:04:32 -0700514 int fd = TEMP_FAILURE_RETRY(ota_open(dest_path, O_WRONLY | O_CREAT | O_TRUNC,
Tao Baod3cac342015-12-14 15:53:25 -0800515 S_IRUSR | S_IWUSR));
516 if (fd == -1) {
517 printf("%s: can't open %s for write: %s\n", name, dest_path, strerror(errno));
Tao Baoba9a42a2015-06-23 23:23:33 -0700518 goto done2;
519 }
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700520 success = ExtractEntryToFile(za, &entry, fd);
Jed Estepa7b9a462015-12-15 16:04:53 -0800521 if (ota_fsync(fd) == -1) {
Tao Baod3cac342015-12-14 15:53:25 -0800522 printf("fsync of \"%s\" failed: %s\n", dest_path, strerror(errno));
523 success = false;
524 }
Jed Estepa7b9a462015-12-15 16:04:53 -0800525 if (ota_close(fd) == -1) {
Tao Baod3cac342015-12-14 15:53:25 -0800526 printf("close of \"%s\" failed: %s\n", dest_path, strerror(errno));
527 success = false;
528 }
Doug Zongker6aece332010-02-01 14:40:12 -0800529 }
Doug Zongker6aece332010-02-01 14:40:12 -0800530
531 done2:
532 free(zip_path);
533 free(dest_path);
Tianjie Xuaced5d92016-10-12 10:55:04 -0700534 return StringValue(success ? "t" : "");
Doug Zongker6aece332010-02-01 14:40:12 -0800535 } else {
536 // The one-argument version returns the contents of the file
537 // as the result.
538
539 char* zip_path;
Yabin Cui64be2132016-02-03 18:16:02 -0800540 if (ReadArgs(state, argv, 1, &zip_path) < 0) return NULL;
541
Tianjie Xuaced5d92016-10-12 10:55:04 -0700542 Value* v = new Value(VAL_INVALID, "");
Doug Zongker6aece332010-02-01 14:40:12 -0800543
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700544 ZipArchiveHandle za = ((UpdaterInfo*)(state->cookie))->package_zip;
545 ZipString zip_string_path(zip_path);
546 ZipEntry entry;
547 if (FindEntry(za, zip_string_path, &entry) != 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700548 printf("%s: no %s in package\n", name, zip_path);
Doug Zongker6aece332010-02-01 14:40:12 -0800549 goto done1;
550 }
551
Tianjie Xu8cf5c8f2016-09-08 20:10:11 -0700552 v->data.resize(entry.uncompressed_length);
553 if (ExtractToMemory(za, &entry, reinterpret_cast<uint8_t*>(&v->data[0]),
554 v->data.size()) != 0) {
555 printf("%s: faled to extract %zu bytes to memory\n", name, v->data.size());
556 } else {
557 success = true;
558 }
Doug Zongker6aece332010-02-01 14:40:12 -0800559
560 done1:
561 free(zip_path);
562 if (!success) {
Tianjie Xuaced5d92016-10-12 10:55:04 -0700563 v->data.clear();
564 } else {
565 v->type = VAL_BLOB;
Doug Zongker6aece332010-02-01 14:40:12 -0800566 }
Doug Zongker512536a2010-02-17 16:11:44 -0800567 return v;
Doug Zongker8edb00c2009-06-11 17:21:44 -0700568 }
Doug Zongker8edb00c2009-06-11 17:21:44 -0700569}
570
Doug Zongker9931f7f2009-06-10 14:11:53 -0700571// symlink target src1 src2 ...
Doug Zongker60babf82009-09-18 15:11:24 -0700572// unlinks any previously existing src1, src2, etc before creating symlinks.
Doug Zongker512536a2010-02-17 16:11:44 -0800573Value* SymlinkFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700574 if (argc == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700575 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1+ args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700576 }
Tianjie Xuaced5d92016-10-12 10:55:04 -0700577 std::string target;
578 if (!Evaluate(state, argv[0], &target)) {
579 return nullptr;
580 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700581
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700582 char** srcs = ReadVarArgs(state, argc-1, argv+1);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700583 if (srcs == NULL) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700584 return NULL;
585 }
586
Doug Zongkeracd73ed2012-03-22 14:32:52 -0700587 int bad = 0;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700588 int i;
589 for (i = 0; i < argc-1; ++i) {
Doug Zongker60babf82009-09-18 15:11:24 -0700590 if (unlink(srcs[i]) < 0) {
591 if (errno != ENOENT) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700592 printf("%s: failed to remove %s: %s\n",
Doug Zongker60babf82009-09-18 15:11:24 -0700593 name, srcs[i], strerror(errno));
Doug Zongkeracd73ed2012-03-22 14:32:52 -0700594 ++bad;
Doug Zongker60babf82009-09-18 15:11:24 -0700595 }
596 }
Doug Zongkera23075f2012-08-06 16:19:09 -0700597 if (make_parents(srcs[i])) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700598 printf("%s: failed to symlink %s to %s: making parents failed\n",
Tianjie Xuaced5d92016-10-12 10:55:04 -0700599 name, srcs[i], target.c_str());
Doug Zongkera23075f2012-08-06 16:19:09 -0700600 ++bad;
601 }
Tianjie Xuaced5d92016-10-12 10:55:04 -0700602 if (symlink(target.c_str(), srcs[i]) < 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700603 printf("%s: failed to symlink %s to %s: %s\n",
Tianjie Xuaced5d92016-10-12 10:55:04 -0700604 name, srcs[i], target.c_str(), strerror(errno));
Doug Zongkeracd73ed2012-03-22 14:32:52 -0700605 ++bad;
Doug Zongker60babf82009-09-18 15:11:24 -0700606 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700607 free(srcs[i]);
608 }
609 free(srcs);
Doug Zongkeracd73ed2012-03-22 14:32:52 -0700610 if (bad) {
Tianjie Xu16255832016-04-30 11:49:59 -0700611 return ErrorAbort(state, kSymlinkFailure, "%s: some symlinks failed", name);
Doug Zongkeracd73ed2012-03-22 14:32:52 -0700612 }
Tianjie Xuaced5d92016-10-12 10:55:04 -0700613 return StringValue("");
Doug Zongker9931f7f2009-06-10 14:11:53 -0700614}
615
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700616struct perm_parsed_args {
617 bool has_uid;
618 uid_t uid;
619 bool has_gid;
620 gid_t gid;
621 bool has_mode;
622 mode_t mode;
623 bool has_fmode;
624 mode_t fmode;
625 bool has_dmode;
626 mode_t dmode;
627 bool has_selabel;
628 char* selabel;
629 bool has_capabilities;
630 uint64_t capabilities;
631};
632
Michael Runged4a63422014-10-22 19:48:41 -0700633static struct perm_parsed_args ParsePermArgs(State * state, int argc, char** args) {
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700634 int i;
635 struct perm_parsed_args parsed;
636 int bad = 0;
637 static int max_warnings = 20;
638
639 memset(&parsed, 0, sizeof(parsed));
640
641 for (i = 1; i < argc; i += 2) {
642 if (strcmp("uid", args[i]) == 0) {
643 int64_t uid;
644 if (sscanf(args[i+1], "%" SCNd64, &uid) == 1) {
645 parsed.uid = uid;
646 parsed.has_uid = true;
647 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700648 uiPrintf(state, "ParsePermArgs: invalid UID \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700649 bad++;
650 }
651 continue;
652 }
653 if (strcmp("gid", args[i]) == 0) {
654 int64_t gid;
655 if (sscanf(args[i+1], "%" SCNd64, &gid) == 1) {
656 parsed.gid = gid;
657 parsed.has_gid = true;
658 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700659 uiPrintf(state, "ParsePermArgs: invalid GID \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700660 bad++;
661 }
662 continue;
663 }
664 if (strcmp("mode", args[i]) == 0) {
665 int32_t mode;
666 if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) {
667 parsed.mode = mode;
668 parsed.has_mode = true;
669 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700670 uiPrintf(state, "ParsePermArgs: invalid mode \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700671 bad++;
672 }
673 continue;
674 }
675 if (strcmp("dmode", args[i]) == 0) {
676 int32_t mode;
677 if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) {
678 parsed.dmode = mode;
679 parsed.has_dmode = true;
680 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700681 uiPrintf(state, "ParsePermArgs: invalid dmode \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700682 bad++;
683 }
684 continue;
685 }
686 if (strcmp("fmode", args[i]) == 0) {
687 int32_t mode;
688 if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) {
689 parsed.fmode = mode;
690 parsed.has_fmode = true;
691 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700692 uiPrintf(state, "ParsePermArgs: invalid fmode \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700693 bad++;
694 }
695 continue;
696 }
697 if (strcmp("capabilities", args[i]) == 0) {
698 int64_t capabilities;
699 if (sscanf(args[i+1], "%" SCNi64, &capabilities) == 1) {
700 parsed.capabilities = capabilities;
701 parsed.has_capabilities = true;
702 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700703 uiPrintf(state, "ParsePermArgs: invalid capabilities \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700704 bad++;
705 }
706 continue;
707 }
708 if (strcmp("selabel", args[i]) == 0) {
709 if (args[i+1][0] != '\0') {
710 parsed.selabel = args[i+1];
711 parsed.has_selabel = true;
712 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700713 uiPrintf(state, "ParsePermArgs: invalid selabel \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700714 bad++;
715 }
716 continue;
717 }
718 if (max_warnings != 0) {
719 printf("ParsedPermArgs: unknown key \"%s\", ignoring\n", args[i]);
720 max_warnings--;
721 if (max_warnings == 0) {
722 printf("ParsedPermArgs: suppressing further warnings\n");
723 }
724 }
725 }
726 return parsed;
727}
728
729static int ApplyParsedPerms(
Michael Runged4a63422014-10-22 19:48:41 -0700730 State * state,
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700731 const char* filename,
732 const struct stat *statptr,
733 struct perm_parsed_args parsed)
734{
735 int bad = 0;
736
Nick Kralevich68802412014-10-23 20:36:42 -0700737 if (parsed.has_selabel) {
738 if (lsetfilecon(filename, parsed.selabel) != 0) {
739 uiPrintf(state, "ApplyParsedPerms: lsetfilecon of %s to %s failed: %s\n",
740 filename, parsed.selabel, strerror(errno));
741 bad++;
742 }
743 }
744
Nick Kraleviche4612512013-09-10 15:34:19 -0700745 /* ignore symlinks */
746 if (S_ISLNK(statptr->st_mode)) {
Nick Kralevich68802412014-10-23 20:36:42 -0700747 return bad;
Nick Kraleviche4612512013-09-10 15:34:19 -0700748 }
749
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700750 if (parsed.has_uid) {
751 if (chown(filename, parsed.uid, -1) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700752 uiPrintf(state, "ApplyParsedPerms: chown of %s to %d failed: %s\n",
753 filename, parsed.uid, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700754 bad++;
755 }
756 }
757
758 if (parsed.has_gid) {
759 if (chown(filename, -1, parsed.gid) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700760 uiPrintf(state, "ApplyParsedPerms: chgrp of %s to %d failed: %s\n",
761 filename, parsed.gid, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700762 bad++;
763 }
764 }
765
766 if (parsed.has_mode) {
767 if (chmod(filename, parsed.mode) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700768 uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n",
769 filename, parsed.mode, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700770 bad++;
771 }
772 }
773
774 if (parsed.has_dmode && S_ISDIR(statptr->st_mode)) {
775 if (chmod(filename, parsed.dmode) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700776 uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n",
777 filename, parsed.dmode, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700778 bad++;
779 }
780 }
781
782 if (parsed.has_fmode && S_ISREG(statptr->st_mode)) {
783 if (chmod(filename, parsed.fmode) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700784 uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n",
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700785 filename, parsed.fmode, strerror(errno));
786 bad++;
787 }
788 }
789
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700790 if (parsed.has_capabilities && S_ISREG(statptr->st_mode)) {
791 if (parsed.capabilities == 0) {
792 if ((removexattr(filename, XATTR_NAME_CAPS) == -1) && (errno != ENODATA)) {
793 // Report failure unless it's ENODATA (attribute not set)
Michael Runged4a63422014-10-22 19:48:41 -0700794 uiPrintf(state, "ApplyParsedPerms: removexattr of %s to %" PRIx64 " failed: %s\n",
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700795 filename, parsed.capabilities, strerror(errno));
796 bad++;
797 }
798 } else {
799 struct vfs_cap_data cap_data;
800 memset(&cap_data, 0, sizeof(cap_data));
801 cap_data.magic_etc = VFS_CAP_REVISION | VFS_CAP_FLAGS_EFFECTIVE;
802 cap_data.data[0].permitted = (uint32_t) (parsed.capabilities & 0xffffffff);
803 cap_data.data[0].inheritable = 0;
804 cap_data.data[1].permitted = (uint32_t) (parsed.capabilities >> 32);
805 cap_data.data[1].inheritable = 0;
806 if (setxattr(filename, XATTR_NAME_CAPS, &cap_data, sizeof(cap_data), 0) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700807 uiPrintf(state, "ApplyParsedPerms: setcap of %s to %" PRIx64 " failed: %s\n",
808 filename, parsed.capabilities, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700809 bad++;
810 }
811 }
812 }
813
814 return bad;
815}
816
817// nftw doesn't allow us to pass along context, so we need to use
818// global variables. *sigh*
819static struct perm_parsed_args recursive_parsed_args;
Michael Runged4a63422014-10-22 19:48:41 -0700820static State* recursive_state;
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700821
822static int do_SetMetadataRecursive(const char* filename, const struct stat *statptr,
823 int fileflags, struct FTW *pfwt) {
Michael Runged4a63422014-10-22 19:48:41 -0700824 return ApplyParsedPerms(recursive_state, filename, statptr, recursive_parsed_args);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700825}
826
827static Value* SetMetadataFn(const char* name, State* state, int argc, Expr* argv[]) {
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700828 int bad = 0;
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700829 struct stat sb;
830 Value* result = NULL;
831
832 bool recursive = (strcmp(name, "set_metadata_recursive") == 0);
833
834 if ((argc % 2) != 1) {
Tianjie Xu16255832016-04-30 11:49:59 -0700835 return ErrorAbort(state, kArgsParsingFailure,
836 "%s() expects an odd number of arguments, got %d", name, argc);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700837 }
838
839 char** args = ReadVarArgs(state, argc, argv);
840 if (args == NULL) return NULL;
841
842 if (lstat(args[0], &sb) == -1) {
Tianjie Xu16255832016-04-30 11:49:59 -0700843 result = ErrorAbort(state, kSetMetadataFailure, "%s: Error on lstat of \"%s\": %s",
844 name, args[0], strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700845 goto done;
846 }
847
Tao Baoba9a42a2015-06-23 23:23:33 -0700848 {
849 struct perm_parsed_args parsed = ParsePermArgs(state, argc, args);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700850
Tao Baoba9a42a2015-06-23 23:23:33 -0700851 if (recursive) {
852 recursive_parsed_args = parsed;
853 recursive_state = state;
854 bad += nftw(args[0], do_SetMetadataRecursive, 30, FTW_CHDIR | FTW_DEPTH | FTW_PHYS);
855 memset(&recursive_parsed_args, 0, sizeof(recursive_parsed_args));
856 recursive_state = NULL;
857 } else {
858 bad += ApplyParsedPerms(state, args[0], &sb, parsed);
859 }
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700860 }
861
862done:
Tao Baoba9a42a2015-06-23 23:23:33 -0700863 for (int i = 0; i < argc; ++i) {
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700864 free(args[i]);
865 }
866 free(args);
867
868 if (result != NULL) {
869 return result;
870 }
871
872 if (bad > 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700873 return ErrorAbort(state, kSetMetadataFailure, "%s: some changes failed", name);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700874 }
875
Tianjie Xuaced5d92016-10-12 10:55:04 -0700876 return StringValue("");
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700877}
Doug Zongker8edb00c2009-06-11 17:21:44 -0700878
Doug Zongker512536a2010-02-17 16:11:44 -0800879Value* GetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker8edb00c2009-06-11 17:21:44 -0700880 if (argc != 1) {
Tianjie Xu16255832016-04-30 11:49:59 -0700881 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700882 }
Tianjie Xuaced5d92016-10-12 10:55:04 -0700883 std::string key;
884 if (!Evaluate(state, argv[0], &key)) {
885 return nullptr;
886 }
Elliott Hughescb220402016-09-23 15:30:55 -0700887 std::string value = android::base::GetProperty(key, "");
Doug Zongker8edb00c2009-06-11 17:21:44 -0700888
Tianjie Xuaced5d92016-10-12 10:55:04 -0700889 return StringValue(value);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700890}
891
892
Doug Zongker47cace92009-06-18 10:11:50 -0700893// file_getprop(file, key)
894//
895// interprets 'file' as a getprop-style file (key=value pairs, one
Michael Rungeaa1a31e2014-04-25 18:47:18 -0700896// per line. # comment lines,blank lines, lines without '=' ignored),
897// and returns the value for 'key' (or "" if it isn't defined).
Doug Zongker512536a2010-02-17 16:11:44 -0800898Value* FileGetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker47cace92009-06-18 10:11:50 -0700899 char* result = NULL;
900 char* buffer = NULL;
901 char* filename;
902 char* key;
903 if (ReadArgs(state, argv, 2, &filename, &key) < 0) {
904 return NULL;
905 }
906
907 struct stat st;
908 if (stat(filename, &st) < 0) {
Tianjie Xu16255832016-04-30 11:49:59 -0700909 ErrorAbort(state, kFileGetPropFailure, "%s: failed to stat \"%s\": %s", name, filename,
910 strerror(errno));
Doug Zongker47cace92009-06-18 10:11:50 -0700911 goto done;
912 }
913
914#define MAX_FILE_GETPROP_SIZE 65536
915
916 if (st.st_size > MAX_FILE_GETPROP_SIZE) {
Tianjie Xu16255832016-04-30 11:49:59 -0700917 ErrorAbort(state, kFileGetPropFailure, "%s too large for %s (max %d)", filename, name,
918 MAX_FILE_GETPROP_SIZE);
Doug Zongker47cace92009-06-18 10:11:50 -0700919 goto done;
920 }
921
Tao Baoba9a42a2015-06-23 23:23:33 -0700922 buffer = reinterpret_cast<char*>(malloc(st.st_size+1));
Doug Zongker47cace92009-06-18 10:11:50 -0700923 if (buffer == NULL) {
Tianjie Xu84478e82016-05-23 11:42:40 -0700924 ErrorAbort(state, kFileGetPropFailure, "%s: failed to alloc %zu bytes", name,
Chih-Hung Hsieh54a27472016-04-18 11:30:55 -0700925 static_cast<size_t>(st.st_size+1));
Doug Zongker47cace92009-06-18 10:11:50 -0700926 goto done;
927 }
928
Tao Baoba9a42a2015-06-23 23:23:33 -0700929 FILE* f;
Jed Estepa7b9a462015-12-15 16:04:53 -0800930 f = ota_fopen(filename, "rb");
Doug Zongker47cace92009-06-18 10:11:50 -0700931 if (f == NULL) {
Tianjie Xu16255832016-04-30 11:49:59 -0700932 ErrorAbort(state, kFileOpenFailure, "%s: failed to open %s: %s", name, filename,
933 strerror(errno));
Doug Zongker47cace92009-06-18 10:11:50 -0700934 goto done;
935 }
936
Jed Estepa7b9a462015-12-15 16:04:53 -0800937 if (ota_fread(buffer, 1, st.st_size, f) != static_cast<size_t>(st.st_size)) {
Tianjie Xu84478e82016-05-23 11:42:40 -0700938 ErrorAbort(state, kFreadFailure, "%s: failed to read %zu bytes from %s",
Chih-Hung Hsieh54a27472016-04-18 11:30:55 -0700939 name, static_cast<size_t>(st.st_size), filename);
Jed Estepa7b9a462015-12-15 16:04:53 -0800940 ota_fclose(f);
Doug Zongker47cace92009-06-18 10:11:50 -0700941 goto done;
942 }
943 buffer[st.st_size] = '\0';
944
Jed Estepa7b9a462015-12-15 16:04:53 -0800945 ota_fclose(f);
Doug Zongker47cace92009-06-18 10:11:50 -0700946
Tao Baoba9a42a2015-06-23 23:23:33 -0700947 char* line;
948 line = strtok(buffer, "\n");
Doug Zongker47cace92009-06-18 10:11:50 -0700949 do {
950 // skip whitespace at start of line
951 while (*line && isspace(*line)) ++line;
952
953 // comment or blank line: skip to next line
954 if (*line == '\0' || *line == '#') continue;
955
956 char* equal = strchr(line, '=');
957 if (equal == NULL) {
Michael Rungeaa1a31e2014-04-25 18:47:18 -0700958 continue;
Doug Zongker47cace92009-06-18 10:11:50 -0700959 }
960
961 // trim whitespace between key and '='
962 char* key_end = equal-1;
963 while (key_end > line && isspace(*key_end)) --key_end;
964 key_end[1] = '\0';
965
966 // not the key we're looking for
967 if (strcmp(key, line) != 0) continue;
968
969 // skip whitespace after the '=' to the start of the value
970 char* val_start = equal+1;
971 while(*val_start && isspace(*val_start)) ++val_start;
972
973 // trim trailing whitespace
974 char* val_end = val_start + strlen(val_start)-1;
975 while (val_end > val_start && isspace(*val_end)) --val_end;
976 val_end[1] = '\0';
977
978 result = strdup(val_start);
979 break;
980
981 } while ((line = strtok(NULL, "\n")));
982
983 if (result == NULL) result = strdup("");
984
985 done:
986 free(filename);
987 free(key);
988 free(buffer);
Doug Zongker512536a2010-02-17 16:11:44 -0800989 return StringValue(result);
Doug Zongker47cace92009-06-18 10:11:50 -0700990}
991
Doug Zongker8edb00c2009-06-11 17:21:44 -0700992// apply_patch_space(bytes)
Doug Zongkerc4351c72010-02-22 14:46:32 -0800993Value* ApplyPatchSpaceFn(const char* name, State* state,
994 int argc, Expr* argv[]) {
995 char* bytes_str;
996 if (ReadArgs(state, argv, 1, &bytes_str) < 0) {
997 return NULL;
998 }
999
Tao Baob15fd222015-09-24 11:10:51 -07001000 size_t bytes;
1001 if (!android::base::ParseUint(bytes_str, &bytes)) {
Tianjie Xu16255832016-04-30 11:49:59 -07001002 ErrorAbort(state, kArgsParsingFailure, "%s(): can't parse \"%s\" as byte count\n\n",
1003 name, bytes_str);
Doug Zongkerc4351c72010-02-22 14:46:32 -08001004 free(bytes_str);
Tao Baob15fd222015-09-24 11:10:51 -07001005 return nullptr;
Doug Zongkerc4351c72010-02-22 14:46:32 -08001006 }
1007
Tianjie Xuaced5d92016-10-12 10:55:04 -07001008 return StringValue(CacheSizeCheck(bytes) ? "" : "t");
Doug Zongkerc4351c72010-02-22 14:46:32 -08001009}
1010
Doug Zongker52b40362014-02-10 15:30:30 -08001011// apply_patch(file, size, init_sha1, tgt_sha1, patch)
1012
Doug Zongker512536a2010-02-17 16:11:44 -08001013Value* ApplyPatchFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkerc4351c72010-02-22 14:46:32 -08001014 if (argc < 6 || (argc % 2) == 1) {
Tianjie Xu16255832016-04-30 11:49:59 -07001015 return ErrorAbort(state, kArgsParsingFailure, "%s(): expected at least 6 args and an "
1016 "even number, got %d", name, argc);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001017 }
1018
Doug Zongkerc4351c72010-02-22 14:46:32 -08001019 char* source_filename;
1020 char* target_filename;
1021 char* target_sha1;
1022 char* target_size_str;
1023 if (ReadArgs(state, argv, 4, &source_filename, &target_filename,
1024 &target_sha1, &target_size_str) < 0) {
1025 return NULL;
Doug Zongker8edb00c2009-06-11 17:21:44 -07001026 }
Doug Zongker8edb00c2009-06-11 17:21:44 -07001027
Tao Baob15fd222015-09-24 11:10:51 -07001028 size_t target_size;
1029 if (!android::base::ParseUint(target_size_str, &target_size)) {
Tianjie Xu16255832016-04-30 11:49:59 -07001030 ErrorAbort(state, kArgsParsingFailure, "%s(): can't parse \"%s\" as byte count",
1031 name, target_size_str);
Doug Zongkerc4351c72010-02-22 14:46:32 -08001032 free(source_filename);
1033 free(target_filename);
1034 free(target_sha1);
1035 free(target_size_str);
Tao Baob15fd222015-09-24 11:10:51 -07001036 return nullptr;
Doug Zongkerc4351c72010-02-22 14:46:32 -08001037 }
1038
1039 int patchcount = (argc-4) / 2;
Tianjie Xuaced5d92016-10-12 10:55:04 -07001040 std::unique_ptr<Value*> arg_values(ReadValueVarArgs(state, argc-4, argv+4));
Yabin Cui64be2132016-02-03 18:16:02 -08001041 if (!arg_values) {
1042 return nullptr;
1043 }
Tianjie Xuaced5d92016-10-12 10:55:04 -07001044 std::vector<std::unique_ptr<Value>> patch_shas;
1045 std::vector<std::unique_ptr<Value>> patches;
Yabin Cui64be2132016-02-03 18:16:02 -08001046 // Protect values by unique_ptrs first to get rid of memory leak.
1047 for (int i = 0; i < patchcount * 2; i += 2) {
Tianjie Xuaced5d92016-10-12 10:55:04 -07001048 patch_shas.emplace_back(arg_values.get()[i]);
1049 patches.emplace_back(arg_values.get()[i+1]);
Yabin Cui64be2132016-02-03 18:16:02 -08001050 }
Doug Zongker8edb00c2009-06-11 17:21:44 -07001051
Yabin Cui64be2132016-02-03 18:16:02 -08001052 for (int i = 0; i < patchcount; ++i) {
1053 if (patch_shas[i]->type != VAL_STRING) {
Tianjie Xu16255832016-04-30 11:49:59 -07001054 ErrorAbort(state, kArgsParsingFailure, "%s(): sha-1 #%d is not string", name, i);
Yabin Cui64be2132016-02-03 18:16:02 -08001055 return nullptr;
Doug Zongkerc4351c72010-02-22 14:46:32 -08001056 }
Yabin Cui64be2132016-02-03 18:16:02 -08001057 if (patches[i]->type != VAL_BLOB) {
Tianjie Xu16255832016-04-30 11:49:59 -07001058 ErrorAbort(state, kArgsParsingFailure, "%s(): patch #%d is not blob", name, i);
Yabin Cui64be2132016-02-03 18:16:02 -08001059 return nullptr;
Doug Zongkerc4351c72010-02-22 14:46:32 -08001060 }
Doug Zongker8edb00c2009-06-11 17:21:44 -07001061 }
Doug Zongker8edb00c2009-06-11 17:21:44 -07001062
Tianjie Xuaced5d92016-10-12 10:55:04 -07001063 std::vector<std::string> patch_sha_str;
Yabin Cui64be2132016-02-03 18:16:02 -08001064 for (int i = 0; i < patchcount; ++i) {
1065 patch_sha_str.push_back(patch_shas[i]->data);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001066 }
Doug Zongkerc4351c72010-02-22 14:46:32 -08001067
1068 int result = applypatch(source_filename, target_filename,
1069 target_sha1, target_size,
Tao Baofada91c2016-10-27 18:16:06 -07001070 patch_sha_str, patches, NULL);
Doug Zongkerc4351c72010-02-22 14:46:32 -08001071
Tianjie Xuaced5d92016-10-12 10:55:04 -07001072 return StringValue(result == 0 ? "t" : "");
Doug Zongkerc4351c72010-02-22 14:46:32 -08001073}
1074
1075// apply_patch_check(file, [sha1_1, ...])
1076Value* ApplyPatchCheckFn(const char* name, State* state,
1077 int argc, Expr* argv[]) {
1078 if (argc < 1) {
Tianjie Xu16255832016-04-30 11:49:59 -07001079 return ErrorAbort(state, kArgsParsingFailure, "%s(): expected at least 1 arg, got %d",
Doug Zongkerc4351c72010-02-22 14:46:32 -08001080 name, argc);
1081 }
1082
1083 char* filename;
1084 if (ReadArgs(state, argv, 1, &filename) < 0) {
Tianjie Xuaced5d92016-10-12 10:55:04 -07001085 return nullptr;
Doug Zongkerc4351c72010-02-22 14:46:32 -08001086 }
1087
Tianjie Xuaced5d92016-10-12 10:55:04 -07001088 std::vector<std::string> sha1s;
1089 if (!ReadArgs(state, argc-1, argv+1, &sha1s)) {
1090 return nullptr;
Doug Zongkerc4351c72010-02-22 14:46:32 -08001091 }
Doug Zongkerc4351c72010-02-22 14:46:32 -08001092
Tianjie Xuaced5d92016-10-12 10:55:04 -07001093 int result = applypatch_check(filename, sha1s);
1094
1095 return StringValue(result == 0 ? "t" : "");
Doug Zongker8edb00c2009-06-11 17:21:44 -07001096}
1097
Tao Bao1107d962015-09-09 17:16:55 -07001098// This is the updater side handler for ui_print() in edify script. Contents
1099// will be sent over to the recovery side for on-screen display.
Doug Zongker512536a2010-02-17 16:11:44 -08001100Value* UIPrintFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001101 char** args = ReadVarArgs(state, argc, argv);
1102 if (args == NULL) {
1103 return NULL;
1104 }
1105
Tao Bao1107d962015-09-09 17:16:55 -07001106 std::string buffer;
1107 for (int i = 0; i < argc; ++i) {
1108 buffer += args[i];
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001109 free(args[i]);
1110 }
1111 free(args);
Tao Bao1107d962015-09-09 17:16:55 -07001112
1113 buffer += "\n";
Michael Runged4a63422014-10-22 19:48:41 -07001114 uiPrint(state, buffer);
Tianjie Xuaced5d92016-10-12 10:55:04 -07001115 return StringValue(buffer);
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001116}
1117
Doug Zongkerd0181b82011-10-19 10:51:12 -07001118Value* WipeCacheFn(const char* name, State* state, int argc, Expr* argv[]) {
1119 if (argc != 0) {
Tianjie Xu16255832016-04-30 11:49:59 -07001120 return ErrorAbort(state, kArgsParsingFailure, "%s() expects no args, got %d", name, argc);
Doug Zongkerd0181b82011-10-19 10:51:12 -07001121 }
1122 fprintf(((UpdaterInfo*)(state->cookie))->cmd_pipe, "wipe_cache\n");
Tianjie Xuaced5d92016-10-12 10:55:04 -07001123 return StringValue("t");
Doug Zongkerd0181b82011-10-19 10:51:12 -07001124}
1125
Doug Zongker512536a2010-02-17 16:11:44 -08001126Value* RunProgramFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001127 if (argc < 1) {
Tianjie Xu16255832016-04-30 11:49:59 -07001128 return ErrorAbort(state, kArgsParsingFailure, "%s() expects at least 1 arg", name);
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001129 }
1130 char** args = ReadVarArgs(state, argc, argv);
1131 if (args == NULL) {
1132 return NULL;
1133 }
1134
Tao Baoba9a42a2015-06-23 23:23:33 -07001135 char** args2 = reinterpret_cast<char**>(malloc(sizeof(char*) * (argc+1)));
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001136 memcpy(args2, args, sizeof(char*) * argc);
1137 args2[argc] = NULL;
1138
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001139 printf("about to run program [%s] with %d args\n", args2[0], argc);
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001140
1141 pid_t child = fork();
1142 if (child == 0) {
1143 execv(args2[0], args2);
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001144 printf("run_program: execv failed: %s\n", strerror(errno));
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001145 _exit(1);
1146 }
1147 int status;
1148 waitpid(child, &status, 0);
1149 if (WIFEXITED(status)) {
1150 if (WEXITSTATUS(status) != 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001151 printf("run_program: child exited with status %d\n",
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001152 WEXITSTATUS(status));
1153 }
1154 } else if (WIFSIGNALED(status)) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001155 printf("run_program: child terminated by signal %d\n",
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001156 WTERMSIG(status));
1157 }
1158
1159 int i;
1160 for (i = 0; i < argc; ++i) {
1161 free(args[i]);
1162 }
1163 free(args);
1164 free(args2);
1165
Tianjie Xuaced5d92016-10-12 10:55:04 -07001166 return StringValue(android::base::StringPrintf("%d", status));
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001167}
1168
Doug Zongker512536a2010-02-17 16:11:44 -08001169// sha1_check(data)
1170// to return the sha1 of the data (given in the format returned by
1171// read_file).
1172//
1173// sha1_check(data, sha1_hex, [sha1_hex, ...])
1174// returns the sha1 of the file if it matches any of the hex
1175// strings passed, or "" if it does not equal any of them.
1176//
1177Value* Sha1CheckFn(const char* name, State* state, int argc, Expr* argv[]) {
1178 if (argc < 1) {
Tianjie Xu16255832016-04-30 11:49:59 -07001179 return ErrorAbort(state, kArgsParsingFailure, "%s() expects at least 1 arg", name);
Doug Zongker512536a2010-02-17 16:11:44 -08001180 }
1181
Tianjie Xuaced5d92016-10-12 10:55:04 -07001182 std::unique_ptr<Value*> arg_values(ReadValueVarArgs(state, argc, argv));
Yabin Cui64be2132016-02-03 18:16:02 -08001183 if (arg_values == nullptr) {
1184 return nullptr;
1185 }
Tianjie Xuaced5d92016-10-12 10:55:04 -07001186 std::vector<std::unique_ptr<Value>> args;
Yabin Cui64be2132016-02-03 18:16:02 -08001187 for (int i = 0; i < argc; ++i) {
Tianjie Xuaced5d92016-10-12 10:55:04 -07001188 args.emplace_back(arg_values.get()[i]);
Doug Zongker512536a2010-02-17 16:11:44 -08001189 }
1190
Tianjie Xuaced5d92016-10-12 10:55:04 -07001191 if (args[0]->type == VAL_INVALID) {
1192 return StringValue("");
Doug Zongker512536a2010-02-17 16:11:44 -08001193 }
Sen Jiangc48cb5e2016-02-04 16:23:21 +08001194 uint8_t digest[SHA_DIGEST_LENGTH];
Tianjie Xuaced5d92016-10-12 10:55:04 -07001195 SHA1(reinterpret_cast<const uint8_t*>(args[0]->data.c_str()), args[0]->data.size(), digest);
Doug Zongker512536a2010-02-17 16:11:44 -08001196
1197 if (argc == 1) {
Tianjie Xuaced5d92016-10-12 10:55:04 -07001198 return StringValue(print_sha1(digest));
Doug Zongker512536a2010-02-17 16:11:44 -08001199 }
1200
Tao Bao361342c2016-02-08 11:15:50 -08001201 for (int i = 1; i < argc; ++i) {
1202 uint8_t arg_digest[SHA_DIGEST_LENGTH];
Doug Zongker512536a2010-02-17 16:11:44 -08001203 if (args[i]->type != VAL_STRING) {
Tao Bao361342c2016-02-08 11:15:50 -08001204 printf("%s(): arg %d is not a string; skipping", name, i);
Tianjie Xuaced5d92016-10-12 10:55:04 -07001205 } else if (ParseSha1(args[i]->data.c_str(), arg_digest) != 0) {
Doug Zongker512536a2010-02-17 16:11:44 -08001206 // Warn about bad args and skip them.
Tianjie Xuaced5d92016-10-12 10:55:04 -07001207 printf("%s(): error parsing \"%s\" as sha-1; skipping", name, args[i]->data.c_str());
Sen Jiangc48cb5e2016-02-04 16:23:21 +08001208 } else if (memcmp(digest, arg_digest, SHA_DIGEST_LENGTH) == 0) {
Tao Bao361342c2016-02-08 11:15:50 -08001209 // Found a match.
1210 return args[i].release();
Doug Zongker512536a2010-02-17 16:11:44 -08001211 }
Doug Zongker512536a2010-02-17 16:11:44 -08001212 }
Tao Bao361342c2016-02-08 11:15:50 -08001213
1214 // Didn't match any of the hex strings; return false.
Tianjie Xuaced5d92016-10-12 10:55:04 -07001215 return StringValue("");
Doug Zongker512536a2010-02-17 16:11:44 -08001216}
1217
Hristo Bojinovdb314d62010-08-02 10:29:49 -07001218// Read a local file and return its contents (the Value* returned
Doug Zongker512536a2010-02-17 16:11:44 -08001219// is actually a FileContents*).
1220Value* ReadFileFn(const char* name, State* state, int argc, Expr* argv[]) {
1221 if (argc != 1) {
Tianjie Xu16255832016-04-30 11:49:59 -07001222 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
Doug Zongker512536a2010-02-17 16:11:44 -08001223 }
1224 char* filename;
1225 if (ReadArgs(state, argv, 1, &filename) < 0) return NULL;
1226
Tianjie Xuaced5d92016-10-12 10:55:04 -07001227 Value* v = new Value(VAL_INVALID, "");
Doug Zongker512536a2010-02-17 16:11:44 -08001228
1229 FileContents fc;
Tao Baoefacd802016-06-11 03:56:38 -07001230 if (LoadFileContents(filename, &fc) == 0) {
Tianjie Xuaced5d92016-10-12 10:55:04 -07001231 v->type = VAL_BLOB;
1232 v->data = std::string(fc.data.begin(), fc.data.end());
Doug Zongker512536a2010-02-17 16:11:44 -08001233 }
Doug Zongker512536a2010-02-17 16:11:44 -08001234 free(filename);
1235 return v;
1236}
Doug Zongker8edb00c2009-06-11 17:21:44 -07001237
Doug Zongkerc87bab12013-11-25 13:53:25 -08001238// Immediately reboot the device. Recovery is not finished normally,
1239// so if you reboot into recovery it will re-start applying the
1240// current package (because nothing has cleared the copy of the
1241// arguments stored in the BCB).
1242//
1243// The argument is the partition name passed to the android reboot
1244// property. It can be "recovery" to boot from the recovery
1245// partition, or "" (empty string) to boot from the regular boot
1246// partition.
1247Value* RebootNowFn(const char* name, State* state, int argc, Expr* argv[]) {
1248 if (argc != 2) {
Tianjie Xu16255832016-04-30 11:49:59 -07001249 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
Doug Zongkerc87bab12013-11-25 13:53:25 -08001250 }
1251
1252 char* filename;
1253 char* property;
1254 if (ReadArgs(state, argv, 2, &filename, &property) < 0) return NULL;
1255
Doug Zongkerc87bab12013-11-25 13:53:25 -08001256 // zero out the 'command' field of the bootloader message.
Elliott Hughescb220402016-09-23 15:30:55 -07001257 char buffer[80];
Doug Zongkerc87bab12013-11-25 13:53:25 -08001258 memset(buffer, 0, sizeof(((struct bootloader_message*)0)->command));
Jed Estepa7b9a462015-12-15 16:04:53 -08001259 FILE* f = ota_fopen(filename, "r+b");
Doug Zongkerc87bab12013-11-25 13:53:25 -08001260 fseek(f, offsetof(struct bootloader_message, command), SEEK_SET);
Jed Estepa7b9a462015-12-15 16:04:53 -08001261 ota_fwrite(buffer, sizeof(((struct bootloader_message*)0)->command), 1, f);
1262 ota_fclose(f);
Doug Zongkerc87bab12013-11-25 13:53:25 -08001263 free(filename);
1264
Elliott Hughescb220402016-09-23 15:30:55 -07001265 std::string reboot_cmd = "reboot,";
1266 if (property != nullptr) reboot_cmd += property;
1267 android::base::SetProperty(ANDROID_RB_PROPERTY, reboot_cmd);
Doug Zongkerc87bab12013-11-25 13:53:25 -08001268
1269 sleep(5);
1270 free(property);
Tianjie Xu16255832016-04-30 11:49:59 -07001271 ErrorAbort(state, kRebootFailure, "%s() failed to reboot", name);
Doug Zongkerc87bab12013-11-25 13:53:25 -08001272 return NULL;
1273}
1274
1275// Store a string value somewhere that future invocations of recovery
1276// can access it. This value is called the "stage" and can be used to
1277// drive packages that need to do reboots in the middle of
1278// installation and keep track of where they are in the multi-stage
1279// install.
1280//
1281// The first argument is the block device for the misc partition
1282// ("/misc" in the fstab), which is where this value is stored. The
1283// second argument is the string to store; it should not exceed 31
1284// bytes.
1285Value* SetStageFn(const char* name, State* state, int argc, Expr* argv[]) {
1286 if (argc != 2) {
Tianjie Xu16255832016-04-30 11:49:59 -07001287 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
Doug Zongkerc87bab12013-11-25 13:53:25 -08001288 }
1289
1290 char* filename;
1291 char* stagestr;
1292 if (ReadArgs(state, argv, 2, &filename, &stagestr) < 0) return NULL;
1293
1294 // Store this value in the misc partition, immediately after the
1295 // bootloader message that the main recovery uses to save its
1296 // arguments in case of the device restarting midway through
1297 // package installation.
Jed Estepa7b9a462015-12-15 16:04:53 -08001298 FILE* f = ota_fopen(filename, "r+b");
Doug Zongkerc87bab12013-11-25 13:53:25 -08001299 fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET);
Tianjie Xuaced5d92016-10-12 10:55:04 -07001300 size_t to_write = strlen(stagestr) + 1;
1301 size_t max_size = sizeof(((struct bootloader_message*)0)->stage);
Doug Zongkerc87bab12013-11-25 13:53:25 -08001302 if (to_write > max_size) {
1303 to_write = max_size;
Tianjie Xuaced5d92016-10-12 10:55:04 -07001304 stagestr[max_size - 1] = 0;
Doug Zongkerc87bab12013-11-25 13:53:25 -08001305 }
Tianjie Xuaced5d92016-10-12 10:55:04 -07001306 size_t status = ota_fwrite(stagestr, to_write, 1, f);
Jed Estepa7b9a462015-12-15 16:04:53 -08001307 ota_fclose(f);
Doug Zongkerc87bab12013-11-25 13:53:25 -08001308
1309 free(stagestr);
Tianjie Xuaced5d92016-10-12 10:55:04 -07001310 if (status != to_write) {
1311 return StringValue("");
1312 }
Doug Zongkerc87bab12013-11-25 13:53:25 -08001313 return StringValue(filename);
1314}
1315
1316// Return the value most recently saved with SetStageFn. The argument
1317// is the block device for the misc partition.
1318Value* GetStageFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -08001319 if (argc != 1) {
Tianjie Xu16255832016-04-30 11:49:59 -07001320 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
Doug Zongkerc87bab12013-11-25 13:53:25 -08001321 }
1322
1323 char* filename;
1324 if (ReadArgs(state, argv, 1, &filename) < 0) return NULL;
1325
1326 char buffer[sizeof(((struct bootloader_message*)0)->stage)];
Jed Estepa7b9a462015-12-15 16:04:53 -08001327 FILE* f = ota_fopen(filename, "rb");
Doug Zongkerc87bab12013-11-25 13:53:25 -08001328 fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET);
Tianjie Xuaced5d92016-10-12 10:55:04 -07001329 size_t status = ota_fread(buffer, sizeof(buffer), 1, f);
Jed Estepa7b9a462015-12-15 16:04:53 -08001330 ota_fclose(f);
Tianjie Xuaced5d92016-10-12 10:55:04 -07001331 if (status != sizeof(buffer)) {
1332 return StringValue("");
1333 }
Doug Zongkerc87bab12013-11-25 13:53:25 -08001334
Tianjie Xuaced5d92016-10-12 10:55:04 -07001335 buffer[sizeof(buffer)-1] = '\0';
1336 return StringValue(buffer);
Doug Zongkerc87bab12013-11-25 13:53:25 -08001337}
1338
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -08001339Value* WipeBlockDeviceFn(const char* name, State* state, int argc, Expr* argv[]) {
1340 if (argc != 2) {
Tianjie Xu16255832016-04-30 11:49:59 -07001341 return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -08001342 }
1343
1344 char* filename;
1345 char* len_str;
1346 if (ReadArgs(state, argv, 2, &filename, &len_str) < 0) return NULL;
1347
Tao Baob15fd222015-09-24 11:10:51 -07001348 size_t len;
1349 android::base::ParseUint(len_str, &len);
Jed Estepa7b9a462015-12-15 16:04:53 -08001350 int fd = ota_open(filename, O_WRONLY, 0644);
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -08001351 int success = wipe_block_device(fd, len);
1352
1353 free(filename);
1354 free(len_str);
1355
Jed Estepa7b9a462015-12-15 16:04:53 -08001356 ota_close(fd);
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -08001357
Tianjie Xuaced5d92016-10-12 10:55:04 -07001358 return StringValue(success ? "t" : "");
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -08001359}
1360
Doug Zongkerc704e062014-05-23 08:40:35 -07001361Value* EnableRebootFn(const char* name, State* state, int argc, Expr* argv[]) {
1362 if (argc != 0) {
Tianjie Xu16255832016-04-30 11:49:59 -07001363 return ErrorAbort(state, kArgsParsingFailure, "%s() expects no args, got %d", name, argc);
Doug Zongkerc704e062014-05-23 08:40:35 -07001364 }
1365 UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
1366 fprintf(ui->cmd_pipe, "enable_reboot\n");
Tianjie Xuaced5d92016-10-12 10:55:04 -07001367 return StringValue("t");
Doug Zongkerc704e062014-05-23 08:40:35 -07001368}
1369
Michael Rungeacf47db2014-11-21 00:12:28 -08001370Value* Tune2FsFn(const char* name, State* state, int argc, Expr* argv[]) {
1371 if (argc == 0) {
Tianjie Xu16255832016-04-30 11:49:59 -07001372 return ErrorAbort(state, kArgsParsingFailure, "%s() expects args, got %d", name, argc);
Michael Rungeacf47db2014-11-21 00:12:28 -08001373 }
1374
1375 char** args = ReadVarArgs(state, argc, argv);
1376 if (args == NULL) {
Tianjie Xu16255832016-04-30 11:49:59 -07001377 return ErrorAbort(state, kArgsParsingFailure, "%s() could not read args", name);
Michael Rungeacf47db2014-11-21 00:12:28 -08001378 }
1379
Tao Baoba9a42a2015-06-23 23:23:33 -07001380 char** args2 = reinterpret_cast<char**>(malloc(sizeof(char*) * (argc+1)));
Michael Rungeacf47db2014-11-21 00:12:28 -08001381 // Tune2fs expects the program name as its args[0]
1382 args2[0] = strdup(name);
Tao Baoba9a42a2015-06-23 23:23:33 -07001383 for (int i = 0; i < argc; ++i) {
Michael Rungeacf47db2014-11-21 00:12:28 -08001384 args2[i + 1] = args[i];
1385 }
1386 int result = tune2fs_main(argc + 1, args2);
Tao Baoba9a42a2015-06-23 23:23:33 -07001387 for (int i = 0; i < argc; ++i) {
Michael Rungeacf47db2014-11-21 00:12:28 -08001388 free(args[i]);
1389 }
1390 free(args);
1391
1392 free(args2[0]);
1393 free(args2);
1394 if (result != 0) {
Tianjie Xu16255832016-04-30 11:49:59 -07001395 return ErrorAbort(state, kTune2FsFailure, "%s() returned error code %d",
1396 name, result);
Michael Rungeacf47db2014-11-21 00:12:28 -08001397 }
Tianjie Xuaced5d92016-10-12 10:55:04 -07001398 return StringValue("t");
Michael Rungeacf47db2014-11-21 00:12:28 -08001399}
1400
Doug Zongker9931f7f2009-06-10 14:11:53 -07001401void RegisterInstallFunctions() {
1402 RegisterFunction("mount", MountFn);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001403 RegisterFunction("is_mounted", IsMountedFn);
Doug Zongker9931f7f2009-06-10 14:11:53 -07001404 RegisterFunction("unmount", UnmountFn);
1405 RegisterFunction("format", FormatFn);
1406 RegisterFunction("show_progress", ShowProgressFn);
Doug Zongkerfbf3c102009-06-24 09:36:20 -07001407 RegisterFunction("set_progress", SetProgressFn);
Doug Zongker9931f7f2009-06-10 14:11:53 -07001408 RegisterFunction("delete", DeleteFn);
1409 RegisterFunction("delete_recursive", DeleteFn);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001410 RegisterFunction("package_extract_dir", PackageExtractDirFn);
1411 RegisterFunction("package_extract_file", PackageExtractFileFn);
Doug Zongker9931f7f2009-06-10 14:11:53 -07001412 RegisterFunction("symlink", SymlinkFn);
Nick Kralevich5dbdef02013-09-07 14:41:06 -07001413
Nick Kralevich5dbdef02013-09-07 14:41:06 -07001414 // Usage:
1415 // set_metadata("filename", "key1", "value1", "key2", "value2", ...)
1416 // Example:
1417 // set_metadata("/system/bin/netcfg", "uid", 0, "gid", 3003, "mode", 02750, "selabel", "u:object_r:system_file:s0", "capabilities", 0x0);
1418 RegisterFunction("set_metadata", SetMetadataFn);
1419
1420 // Usage:
1421 // set_metadata_recursive("dirname", "key1", "value1", "key2", "value2", ...)
1422 // Example:
1423 // set_metadata_recursive("/system", "uid", 0, "gid", 0, "fmode", 0644, "dmode", 0755, "selabel", "u:object_r:system_file:s0", "capabilities", 0x0);
1424 RegisterFunction("set_metadata_recursive", SetMetadataFn);
1425
Doug Zongker8edb00c2009-06-11 17:21:44 -07001426 RegisterFunction("getprop", GetPropFn);
Doug Zongker47cace92009-06-18 10:11:50 -07001427 RegisterFunction("file_getprop", FileGetPropFn);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001428
1429 RegisterFunction("apply_patch", ApplyPatchFn);
Doug Zongkerc4351c72010-02-22 14:46:32 -08001430 RegisterFunction("apply_patch_check", ApplyPatchCheckFn);
1431 RegisterFunction("apply_patch_space", ApplyPatchSpaceFn);
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001432
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -08001433 RegisterFunction("wipe_block_device", WipeBlockDeviceFn);
Doug Zongker52b40362014-02-10 15:30:30 -08001434
Doug Zongker512536a2010-02-17 16:11:44 -08001435 RegisterFunction("read_file", ReadFileFn);
1436 RegisterFunction("sha1_check", Sha1CheckFn);
Michael Rungece7ca712013-11-06 17:42:20 -08001437 RegisterFunction("rename", RenameFn);
Doug Zongker512536a2010-02-17 16:11:44 -08001438
Doug Zongkerd0181b82011-10-19 10:51:12 -07001439 RegisterFunction("wipe_cache", WipeCacheFn);
1440
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001441 RegisterFunction("ui_print", UIPrintFn);
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001442
1443 RegisterFunction("run_program", RunProgramFn);
Doug Zongkerc87bab12013-11-25 13:53:25 -08001444
1445 RegisterFunction("reboot_now", RebootNowFn);
1446 RegisterFunction("get_stage", GetStageFn);
1447 RegisterFunction("set_stage", SetStageFn);
Doug Zongkerc704e062014-05-23 08:40:35 -07001448
1449 RegisterFunction("enable_reboot", EnableRebootFn);
Michael Rungeacf47db2014-11-21 00:12:28 -08001450 RegisterFunction("tune2fs", Tune2FsFn);
Doug Zongker9931f7f2009-06-10 14:11:53 -07001451}