blob: db2bd3295f0dc781d3f8d5970fc94e8495c9632a [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
Doug Zongkerfbf3c102009-06-24 09:36:20 -070017#include <ctype.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070018#include <errno.h>
19#include <stdarg.h>
Doug Zongkerfbf3c102009-06-24 09:36:20 -070020#include <stdio.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070021#include <stdlib.h>
22#include <string.h>
23#include <sys/mount.h>
24#include <sys/stat.h>
25#include <sys/types.h>
Doug Zongkera3f89ea2009-09-10 14:10:48 -070026#include <sys/wait.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070027#include <unistd.h>
Hristo Bojinovdb314d62010-08-02 10:29:49 -070028#include <fcntl.h>
29#include <time.h>
Nick Kralevich5dbdef02013-09-07 14:41:06 -070030#include <selinux/selinux.h>
31#include <ftw.h>
32#include <sys/capability.h>
33#include <sys/xattr.h>
34#include <linux/xattr.h>
35#include <inttypes.h>
Doug Zongker9931f7f2009-06-10 14:11:53 -070036
Doug Zongkerc87bab12013-11-25 13:53:25 -080037#include "bootloader.h"
38#include "applypatch/applypatch.h"
39#include "cutils/android_reboot.h"
Doug Zongker8edb00c2009-06-11 17:21:44 -070040#include "cutils/misc.h"
41#include "cutils/properties.h"
Doug Zongker9931f7f2009-06-10 14:11:53 -070042#include "edify/expr.h"
Doug Zongker512536a2010-02-17 16:11:44 -080043#include "mincrypt/sha.h"
Doug Zongker9931f7f2009-06-10 14:11:53 -070044#include "minzip/DirUtil.h"
45#include "mtdutils/mounts.h"
46#include "mtdutils/mtdutils.h"
47#include "updater.h"
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -080048#include "install.h"
Doug Zongker8edb00c2009-06-11 17:21:44 -070049
Doug Zongker3d177d02010-07-01 09:18:44 -070050#ifdef USE_EXT4
51#include "make_ext4fs.h"
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -080052#include "wipe.h"
Doug Zongker3d177d02010-07-01 09:18:44 -070053#endif
54
Michael Runged4a63422014-10-22 19:48:41 -070055void uiPrint(State* state, char* buffer) {
56 char* line = strtok(buffer, "\n");
57 UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
58 while (line) {
59 fprintf(ui->cmd_pipe, "ui_print %s\n", line);
60 line = strtok(NULL, "\n");
61 }
62 fprintf(ui->cmd_pipe, "ui_print\n");
63}
64
65__attribute__((__format__(printf, 2, 3))) __nonnull((2))
66void uiPrintf(State* state, const char* format, ...) {
67 char error_msg[1024];
68 va_list ap;
69 va_start(ap, format);
70 vsnprintf(error_msg, sizeof(error_msg), format, ap);
71 va_end(ap);
72 uiPrint(state, error_msg);
73}
74
Doug Zongker52b40362014-02-10 15:30:30 -080075// Take a sha-1 digest and return it as a newly-allocated hex string.
Doug Zongkerbc7ffed2014-08-15 14:31:52 -070076char* PrintSha1(const uint8_t* digest) {
Doug Zongker52b40362014-02-10 15:30:30 -080077 char* buffer = malloc(SHA_DIGEST_SIZE*2 + 1);
78 int i;
79 const char* alphabet = "0123456789abcdef";
80 for (i = 0; i < SHA_DIGEST_SIZE; ++i) {
81 buffer[i*2] = alphabet[(digest[i] >> 4) & 0xf];
82 buffer[i*2+1] = alphabet[digest[i] & 0xf];
83 }
84 buffer[i*2] = '\0';
85 return buffer;
86}
87
Doug Zongker3d177d02010-07-01 09:18:44 -070088// mount(fs_type, partition_type, location, mount_point)
Doug Zongker9931f7f2009-06-10 14:11:53 -070089//
Doug Zongker3d177d02010-07-01 09:18:44 -070090// fs_type="yaffs2" partition_type="MTD" location=partition
91// fs_type="ext4" partition_type="EMMC" location=device
Doug Zongker512536a2010-02-17 16:11:44 -080092Value* MountFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -070093 char* result = NULL;
Michael Runge168f7772014-10-22 17:05:08 -070094 if (argc != 4 && argc != 5) {
95 return ErrorAbort(state, "%s() expects 4-5 args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -070096 }
Doug Zongker3d177d02010-07-01 09:18:44 -070097 char* fs_type;
98 char* partition_type;
Doug Zongker9931f7f2009-06-10 14:11:53 -070099 char* location;
100 char* mount_point;
Michael Runge168f7772014-10-22 17:05:08 -0700101 char* mount_options;
102 bool has_mount_options;
103 if (argc == 5) {
104 has_mount_options = true;
105 if (ReadArgs(state, argv, 5, &fs_type, &partition_type,
106 &location, &mount_point, &mount_options) < 0) {
107 return NULL;
108 }
109 } else {
110 has_mount_options = false;
111 if (ReadArgs(state, argv, 4, &fs_type, &partition_type,
Doug Zongker3d177d02010-07-01 09:18:44 -0700112 &location, &mount_point) < 0) {
Michael Runge168f7772014-10-22 17:05:08 -0700113 return NULL;
114 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700115 }
116
Doug Zongker3d177d02010-07-01 09:18:44 -0700117 if (strlen(fs_type) == 0) {
118 ErrorAbort(state, "fs_type argument to %s() can't be empty", name);
119 goto done;
120 }
121 if (strlen(partition_type) == 0) {
122 ErrorAbort(state, "partition_type argument to %s() can't be empty",
123 name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700124 goto done;
125 }
126 if (strlen(location) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700127 ErrorAbort(state, "location argument to %s() can't be empty", name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700128 goto done;
129 }
130 if (strlen(mount_point) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700131 ErrorAbort(state, "mount_point argument to %s() can't be empty", name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700132 goto done;
133 }
134
Stephen Smalley779701d2012-02-09 14:13:23 -0500135 char *secontext = NULL;
136
137 if (sehandle) {
138 selabel_lookup(sehandle, &secontext, mount_point, 0755);
139 setfscreatecon(secontext);
140 }
Stephen Smalley779701d2012-02-09 14:13:23 -0500141
Doug Zongker9931f7f2009-06-10 14:11:53 -0700142 mkdir(mount_point, 0755);
143
Stephen Smalley779701d2012-02-09 14:13:23 -0500144 if (secontext) {
145 freecon(secontext);
146 setfscreatecon(NULL);
147 }
Stephen Smalley779701d2012-02-09 14:13:23 -0500148
Doug Zongker3d177d02010-07-01 09:18:44 -0700149 if (strcmp(partition_type, "MTD") == 0) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700150 mtd_scan_partitions();
151 const MtdPartition* mtd;
152 mtd = mtd_find_partition_by_name(location);
153 if (mtd == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700154 printf("%s: no mtd partition named \"%s\"",
Doug Zongker9931f7f2009-06-10 14:11:53 -0700155 name, location);
156 result = strdup("");
157 goto done;
158 }
Doug Zongker3d177d02010-07-01 09:18:44 -0700159 if (mtd_mount_partition(mtd, mount_point, fs_type, 0 /* rw */) != 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700160 printf("mtd mount of %s failed: %s\n",
Doug Zongker9931f7f2009-06-10 14:11:53 -0700161 location, strerror(errno));
162 result = strdup("");
163 goto done;
164 }
165 result = mount_point;
166 } else {
Doug Zongker3d177d02010-07-01 09:18:44 -0700167 if (mount(location, mount_point, fs_type,
Michael Runge168f7772014-10-22 17:05:08 -0700168 MS_NOATIME | MS_NODEV | MS_NODIRATIME,
169 has_mount_options ? mount_options : "") < 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700170 printf("%s: failed to mount %s at %s: %s\n",
Doug Zongker60babf82009-09-18 15:11:24 -0700171 name, location, mount_point, strerror(errno));
Doug Zongker9931f7f2009-06-10 14:11:53 -0700172 result = strdup("");
173 } else {
174 result = mount_point;
175 }
176 }
177
178done:
Doug Zongker3d177d02010-07-01 09:18:44 -0700179 free(fs_type);
180 free(partition_type);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700181 free(location);
182 if (result != mount_point) free(mount_point);
Michael Runge168f7772014-10-22 17:05:08 -0700183 if (has_mount_options) free(mount_options);
Doug Zongker512536a2010-02-17 16:11:44 -0800184 return StringValue(result);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700185}
186
Doug Zongker8edb00c2009-06-11 17:21:44 -0700187
188// is_mounted(mount_point)
Doug Zongker512536a2010-02-17 16:11:44 -0800189Value* IsMountedFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker8edb00c2009-06-11 17:21:44 -0700190 char* result = NULL;
191 if (argc != 1) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700192 return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700193 }
194 char* mount_point;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700195 if (ReadArgs(state, argv, 1, &mount_point) < 0) {
Doug Zongker8edb00c2009-06-11 17:21:44 -0700196 return NULL;
197 }
198 if (strlen(mount_point) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700199 ErrorAbort(state, "mount_point argument to unmount() can't be empty");
Doug Zongker8edb00c2009-06-11 17:21:44 -0700200 goto done;
201 }
202
203 scan_mounted_volumes();
204 const MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point);
205 if (vol == NULL) {
206 result = strdup("");
207 } else {
208 result = mount_point;
209 }
210
211done:
212 if (result != mount_point) free(mount_point);
Doug Zongker512536a2010-02-17 16:11:44 -0800213 return StringValue(result);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700214}
215
216
Doug Zongker512536a2010-02-17 16:11:44 -0800217Value* UnmountFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700218 char* result = NULL;
219 if (argc != 1) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700220 return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700221 }
222 char* mount_point;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700223 if (ReadArgs(state, argv, 1, &mount_point) < 0) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700224 return NULL;
225 }
226 if (strlen(mount_point) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700227 ErrorAbort(state, "mount_point argument to unmount() can't be empty");
Doug Zongker9931f7f2009-06-10 14:11:53 -0700228 goto done;
229 }
230
231 scan_mounted_volumes();
232 const MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point);
233 if (vol == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700234 printf("unmount of %s failed; no such volume\n", mount_point);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700235 result = strdup("");
236 } else {
237 unmount_mounted_volume(vol);
238 result = mount_point;
239 }
240
241done:
242 if (result != mount_point) free(mount_point);
Doug Zongker512536a2010-02-17 16:11:44 -0800243 return StringValue(result);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700244}
Doug Zongker8edb00c2009-06-11 17:21:44 -0700245
JP Abgrall37aedb32014-06-16 19:07:39 -0700246static int exec_cmd(const char* path, char* const argv[]) {
247 int status;
248 pid_t child;
249 if ((child = vfork()) == 0) {
250 execv(path, argv);
251 _exit(-1);
252 }
253 waitpid(child, &status, 0);
254 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
255 printf("%s failed with status %d\n", path, WEXITSTATUS(status));
256 }
257 return WEXITSTATUS(status);
258}
259
Doug Zongker8edb00c2009-06-11 17:21:44 -0700260
Stephen Smalley779701d2012-02-09 14:13:23 -0500261// format(fs_type, partition_type, location, fs_size, mount_point)
Doug Zongker9931f7f2009-06-10 14:11:53 -0700262//
Stephen Smalley779701d2012-02-09 14:13:23 -0500263// fs_type="yaffs2" partition_type="MTD" location=partition fs_size=<bytes> mount_point=<location>
264// fs_type="ext4" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
JP Abgrall37aedb32014-06-16 19:07:39 -0700265// fs_type="f2fs" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
266// if fs_size == 0, then make fs uses the entire partition.
Ken Sumrall8f132ed2011-01-14 18:55:05 -0800267// if fs_size > 0, that is the size to use
JP Abgrall37aedb32014-06-16 19:07:39 -0700268// 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 -0800269Value* FormatFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700270 char* result = NULL;
Stephen Smalley516e4e22012-04-03 13:35:11 -0400271 if (argc != 5) {
272 return ErrorAbort(state, "%s() expects 5 args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700273 }
Doug Zongker3d177d02010-07-01 09:18:44 -0700274 char* fs_type;
275 char* partition_type;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700276 char* location;
Ken Sumrall8f132ed2011-01-14 18:55:05 -0800277 char* fs_size;
Stephen Smalley516e4e22012-04-03 13:35:11 -0400278 char* mount_point;
Stephen Smalley779701d2012-02-09 14:13:23 -0500279
Stephen Smalley779701d2012-02-09 14:13:23 -0500280 if (ReadArgs(state, argv, 5, &fs_type, &partition_type, &location, &fs_size, &mount_point) < 0) {
281 return NULL;
282 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700283
Doug Zongker3d177d02010-07-01 09:18:44 -0700284 if (strlen(fs_type) == 0) {
285 ErrorAbort(state, "fs_type argument to %s() can't be empty", name);
286 goto done;
287 }
288 if (strlen(partition_type) == 0) {
289 ErrorAbort(state, "partition_type argument to %s() can't be empty",
290 name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700291 goto done;
292 }
293 if (strlen(location) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700294 ErrorAbort(state, "location argument to %s() can't be empty", name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700295 goto done;
296 }
297
Stephen Smalley516e4e22012-04-03 13:35:11 -0400298 if (strlen(mount_point) == 0) {
Stephen Smalley779701d2012-02-09 14:13:23 -0500299 ErrorAbort(state, "mount_point argument to %s() can't be empty", name);
300 goto done;
301 }
Stephen Smalley779701d2012-02-09 14:13:23 -0500302
Doug Zongker3d177d02010-07-01 09:18:44 -0700303 if (strcmp(partition_type, "MTD") == 0) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700304 mtd_scan_partitions();
305 const MtdPartition* mtd = mtd_find_partition_by_name(location);
306 if (mtd == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700307 printf("%s: no mtd partition named \"%s\"",
Doug Zongker9931f7f2009-06-10 14:11:53 -0700308 name, location);
309 result = strdup("");
310 goto done;
311 }
312 MtdWriteContext* ctx = mtd_write_partition(mtd);
313 if (ctx == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700314 printf("%s: can't write \"%s\"", name, location);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700315 result = strdup("");
316 goto done;
317 }
318 if (mtd_erase_blocks(ctx, -1) == -1) {
319 mtd_write_close(ctx);
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700320 printf("%s: failed to erase \"%s\"", name, location);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700321 result = strdup("");
322 goto done;
323 }
324 if (mtd_write_close(ctx) != 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700325 printf("%s: failed to close \"%s\"", name, location);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700326 result = strdup("");
327 goto done;
328 }
329 result = location;
Doug Zongker3d177d02010-07-01 09:18:44 -0700330#ifdef USE_EXT4
331 } else if (strcmp(fs_type, "ext4") == 0) {
Stephen Smalley779701d2012-02-09 14:13:23 -0500332 int status = make_ext4fs(location, atoll(fs_size), mount_point, sehandle);
Doug Zongker3d177d02010-07-01 09:18:44 -0700333 if (status != 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700334 printf("%s: make_ext4fs failed (%d) on %s",
Doug Zongker3d177d02010-07-01 09:18:44 -0700335 name, status, location);
336 result = strdup("");
337 goto done;
338 }
339 result = location;
JP Abgrall37aedb32014-06-16 19:07:39 -0700340 } else if (strcmp(fs_type, "f2fs") == 0) {
341 char *num_sectors;
342 if (asprintf(&num_sectors, "%lld", atoll(fs_size) / 512) <= 0) {
343 printf("format_volume: failed to create %s command for %s\n", fs_type, location);
344 result = strdup("");
345 goto done;
346 }
347 const char *f2fs_path = "/sbin/mkfs.f2fs";
348 const char* const f2fs_argv[] = {"mkfs.f2fs", "-t", "-d1", location, num_sectors, NULL};
349 int status = exec_cmd(f2fs_path, (char* const*)f2fs_argv);
350 free(num_sectors);
351 if (status != 0) {
352 printf("%s: mkfs.f2fs failed (%d) on %s",
353 name, status, location);
354 result = strdup("");
355 goto done;
356 }
357 result = location;
Doug Zongker3d177d02010-07-01 09:18:44 -0700358#endif
Doug Zongker9931f7f2009-06-10 14:11:53 -0700359 } else {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700360 printf("%s: unsupported fs_type \"%s\" partition_type \"%s\"",
Doug Zongker3d177d02010-07-01 09:18:44 -0700361 name, fs_type, partition_type);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700362 }
363
364done:
Doug Zongker3d177d02010-07-01 09:18:44 -0700365 free(fs_type);
366 free(partition_type);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700367 if (result != location) free(location);
Doug Zongker512536a2010-02-17 16:11:44 -0800368 return StringValue(result);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700369}
370
Michael Rungece7ca712013-11-06 17:42:20 -0800371Value* RenameFn(const char* name, State* state, int argc, Expr* argv[]) {
372 char* result = NULL;
373 if (argc != 2) {
374 return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
375 }
376
377 char* src_name;
378 char* dst_name;
379
380 if (ReadArgs(state, argv, 2, &src_name, &dst_name) < 0) {
381 return NULL;
382 }
383 if (strlen(src_name) == 0) {
384 ErrorAbort(state, "src_name argument to %s() can't be empty", name);
385 goto done;
386 }
387 if (strlen(dst_name) == 0) {
Doug Zongker2b5f0e02014-08-06 08:25:03 -0700388 ErrorAbort(state, "dst_name argument to %s() can't be empty", name);
Michael Rungece7ca712013-11-06 17:42:20 -0800389 goto done;
390 }
Michael Rungea91ecc52014-07-21 17:40:02 -0700391 if (make_parents(dst_name) != 0) {
Doug Zongker2b5f0e02014-08-06 08:25:03 -0700392 ErrorAbort(state, "Creating parent of %s failed, error %s",
Michael Rungea91ecc52014-07-21 17:40:02 -0700393 dst_name, strerror(errno));
Michael Runge2f0ef732014-10-22 14:28:23 -0700394 } else if (access(dst_name, F_OK) == 0 && access(src_name, F_OK) != 0) {
395 // File was already moved
396 result = dst_name;
Michael Rungea91ecc52014-07-21 17:40:02 -0700397 } else if (rename(src_name, dst_name) != 0) {
Doug Zongker2b5f0e02014-08-06 08:25:03 -0700398 ErrorAbort(state, "Rename of %s to %s failed, error %s",
Michael Rungece7ca712013-11-06 17:42:20 -0800399 src_name, dst_name, strerror(errno));
400 } else {
401 result = dst_name;
402 }
403
404done:
405 free(src_name);
406 if (result != dst_name) free(dst_name);
407 return StringValue(result);
408}
Doug Zongker8edb00c2009-06-11 17:21:44 -0700409
Doug Zongker512536a2010-02-17 16:11:44 -0800410Value* DeleteFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700411 char** paths = malloc(argc * sizeof(char*));
412 int i;
413 for (i = 0; i < argc; ++i) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700414 paths[i] = Evaluate(state, argv[i]);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700415 if (paths[i] == NULL) {
416 int j;
417 for (j = 0; j < i; ++i) {
418 free(paths[j]);
419 }
420 free(paths);
421 return NULL;
422 }
423 }
424
425 bool recursive = (strcmp(name, "delete_recursive") == 0);
426
427 int success = 0;
428 for (i = 0; i < argc; ++i) {
429 if ((recursive ? dirUnlinkHierarchy(paths[i]) : unlink(paths[i])) == 0)
430 ++success;
431 free(paths[i]);
432 }
433 free(paths);
434
435 char buffer[10];
436 sprintf(buffer, "%d", success);
Doug Zongker512536a2010-02-17 16:11:44 -0800437 return StringValue(strdup(buffer));
Doug Zongker9931f7f2009-06-10 14:11:53 -0700438}
439
Doug Zongker8edb00c2009-06-11 17:21:44 -0700440
Doug Zongker512536a2010-02-17 16:11:44 -0800441Value* ShowProgressFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700442 if (argc != 2) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700443 return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700444 }
445 char* frac_str;
446 char* sec_str;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700447 if (ReadArgs(state, argv, 2, &frac_str, &sec_str) < 0) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700448 return NULL;
449 }
450
451 double frac = strtod(frac_str, NULL);
452 int sec = strtol(sec_str, NULL, 10);
453
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700454 UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700455 fprintf(ui->cmd_pipe, "progress %f %d\n", frac, sec);
456
Doug Zongker9931f7f2009-06-10 14:11:53 -0700457 free(sec_str);
Doug Zongker512536a2010-02-17 16:11:44 -0800458 return StringValue(frac_str);
Doug Zongkerfbf3c102009-06-24 09:36:20 -0700459}
460
Doug Zongker512536a2010-02-17 16:11:44 -0800461Value* SetProgressFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkerfbf3c102009-06-24 09:36:20 -0700462 if (argc != 1) {
463 return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
464 }
465 char* frac_str;
466 if (ReadArgs(state, argv, 1, &frac_str) < 0) {
467 return NULL;
468 }
469
470 double frac = strtod(frac_str, NULL);
471
472 UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
473 fprintf(ui->cmd_pipe, "set_progress %f\n", frac);
474
Doug Zongker512536a2010-02-17 16:11:44 -0800475 return StringValue(frac_str);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700476}
477
Doug Zongker8edb00c2009-06-11 17:21:44 -0700478// package_extract_dir(package_path, destination_path)
Doug Zongker512536a2010-02-17 16:11:44 -0800479Value* PackageExtractDirFn(const char* name, State* state,
Doug Zongker8edb00c2009-06-11 17:21:44 -0700480 int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700481 if (argc != 2) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700482 return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700483 }
484 char* zip_path;
485 char* dest_path;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700486 if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700487
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700488 ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700489
490 // To create a consistent system image, never use the clock for timestamps.
491 struct utimbuf timestamp = { 1217592000, 1217592000 }; // 8/1/2008 default
492
493 bool success = mzExtractRecursive(za, zip_path, dest_path,
494 MZ_EXTRACT_FILES_ONLY, &timestamp,
Stephen Smalley779701d2012-02-09 14:13:23 -0500495 NULL, NULL, sehandle);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700496 free(zip_path);
497 free(dest_path);
Doug Zongker512536a2010-02-17 16:11:44 -0800498 return StringValue(strdup(success ? "t" : ""));
Doug Zongker9931f7f2009-06-10 14:11:53 -0700499}
500
Doug Zongker8edb00c2009-06-11 17:21:44 -0700501
502// package_extract_file(package_path, destination_path)
Doug Zongker6aece332010-02-01 14:40:12 -0800503// or
504// package_extract_file(package_path)
505// to return the entire contents of the file as the result of this
Doug Zongker512536a2010-02-17 16:11:44 -0800506// function (the char* returned is actually a FileContents*).
507Value* PackageExtractFileFn(const char* name, State* state,
Doug Zongker8edb00c2009-06-11 17:21:44 -0700508 int argc, Expr* argv[]) {
Doug Zongker5f875bf2014-08-22 14:53:43 -0700509 if (argc < 1 || argc > 2) {
510 return ErrorAbort(state, "%s() expects 1 or 2 args, got %d",
Doug Zongker6aece332010-02-01 14:40:12 -0800511 name, argc);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700512 }
Doug Zongker8edb00c2009-06-11 17:21:44 -0700513 bool success = false;
Doug Zongker43772d22014-06-09 14:13:19 -0700514
515 UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
Doug Zongker43772d22014-06-09 14:13:19 -0700516
Doug Zongker5f875bf2014-08-22 14:53:43 -0700517 if (argc == 2) {
518 // The two-argument version extracts to a file.
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -0800519
520 ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
Doug Zongker8edb00c2009-06-11 17:21:44 -0700521
Doug Zongker6aece332010-02-01 14:40:12 -0800522 char* zip_path;
523 char* dest_path;
Doug Zongker5f875bf2014-08-22 14:53:43 -0700524 if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL;
Doug Zongker6aece332010-02-01 14:40:12 -0800525
Doug Zongker6aece332010-02-01 14:40:12 -0800526 const ZipEntry* entry = mzFindZipEntry(za, zip_path);
527 if (entry == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700528 printf("%s: no %s in package\n", name, zip_path);
Doug Zongker6aece332010-02-01 14:40:12 -0800529 goto done2;
530 }
531
532 FILE* f = fopen(dest_path, "wb");
533 if (f == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700534 printf("%s: can't open %s for write: %s\n",
Doug Zongker6aece332010-02-01 14:40:12 -0800535 name, dest_path, strerror(errno));
536 goto done2;
537 }
Doug Zongker5f875bf2014-08-22 14:53:43 -0700538 success = mzExtractZipEntryToFile(za, entry, fileno(f));
Doug Zongker6aece332010-02-01 14:40:12 -0800539 fclose(f);
540
541 done2:
542 free(zip_path);
543 free(dest_path);
Doug Zongker512536a2010-02-17 16:11:44 -0800544 return StringValue(strdup(success ? "t" : ""));
Doug Zongker6aece332010-02-01 14:40:12 -0800545 } else {
546 // The one-argument version returns the contents of the file
547 // as the result.
548
549 char* zip_path;
Doug Zongker512536a2010-02-17 16:11:44 -0800550 Value* v = malloc(sizeof(Value));
551 v->type = VAL_BLOB;
552 v->size = -1;
553 v->data = NULL;
Doug Zongker6aece332010-02-01 14:40:12 -0800554
555 if (ReadArgs(state, argv, 1, &zip_path) < 0) return NULL;
556
557 ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
558 const ZipEntry* entry = mzFindZipEntry(za, zip_path);
559 if (entry == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700560 printf("%s: no %s in package\n", name, zip_path);
Doug Zongker6aece332010-02-01 14:40:12 -0800561 goto done1;
562 }
563
Doug Zongker512536a2010-02-17 16:11:44 -0800564 v->size = mzGetZipEntryUncompLen(entry);
565 v->data = malloc(v->size);
566 if (v->data == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700567 printf("%s: failed to allocate %ld bytes for %s\n",
Doug Zongker512536a2010-02-17 16:11:44 -0800568 name, (long)v->size, zip_path);
Doug Zongker6aece332010-02-01 14:40:12 -0800569 goto done1;
570 }
571
Doug Zongker512536a2010-02-17 16:11:44 -0800572 success = mzExtractZipEntryToBuffer(za, entry,
573 (unsigned char *)v->data);
Doug Zongker6aece332010-02-01 14:40:12 -0800574
575 done1:
576 free(zip_path);
577 if (!success) {
Doug Zongker512536a2010-02-17 16:11:44 -0800578 free(v->data);
579 v->data = NULL;
580 v->size = -1;
Doug Zongker6aece332010-02-01 14:40:12 -0800581 }
Doug Zongker512536a2010-02-17 16:11:44 -0800582 return v;
Doug Zongker8edb00c2009-06-11 17:21:44 -0700583 }
Doug Zongker8edb00c2009-06-11 17:21:44 -0700584}
585
Doug Zongkera23075f2012-08-06 16:19:09 -0700586// Create all parent directories of name, if necessary.
587static int make_parents(char* name) {
588 char* p;
589 for (p = name + (strlen(name)-1); p > name; --p) {
590 if (*p != '/') continue;
591 *p = '\0';
592 if (make_parents(name) < 0) return -1;
593 int result = mkdir(name, 0700);
Michael Rungea91ecc52014-07-21 17:40:02 -0700594 if (result == 0) printf("created [%s]\n", name);
Doug Zongkera23075f2012-08-06 16:19:09 -0700595 *p = '/';
596 if (result == 0 || errno == EEXIST) {
597 // successfully created or already existed; we're done
598 return 0;
599 } else {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700600 printf("failed to mkdir %s: %s\n", name, strerror(errno));
Doug Zongkera23075f2012-08-06 16:19:09 -0700601 return -1;
602 }
603 }
604 return 0;
605}
Doug Zongker8edb00c2009-06-11 17:21:44 -0700606
Doug Zongker9931f7f2009-06-10 14:11:53 -0700607// symlink target src1 src2 ...
Doug Zongker60babf82009-09-18 15:11:24 -0700608// unlinks any previously existing src1, src2, etc before creating symlinks.
Doug Zongker512536a2010-02-17 16:11:44 -0800609Value* SymlinkFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700610 if (argc == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700611 return ErrorAbort(state, "%s() expects 1+ args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700612 }
613 char* target;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700614 target = Evaluate(state, argv[0]);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700615 if (target == NULL) return NULL;
616
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700617 char** srcs = ReadVarArgs(state, argc-1, argv+1);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700618 if (srcs == NULL) {
619 free(target);
620 return NULL;
621 }
622
Doug Zongkeracd73ed2012-03-22 14:32:52 -0700623 int bad = 0;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700624 int i;
625 for (i = 0; i < argc-1; ++i) {
Doug Zongker60babf82009-09-18 15:11:24 -0700626 if (unlink(srcs[i]) < 0) {
627 if (errno != ENOENT) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700628 printf("%s: failed to remove %s: %s\n",
Doug Zongker60babf82009-09-18 15:11:24 -0700629 name, srcs[i], strerror(errno));
Doug Zongkeracd73ed2012-03-22 14:32:52 -0700630 ++bad;
Doug Zongker60babf82009-09-18 15:11:24 -0700631 }
632 }
Doug Zongkera23075f2012-08-06 16:19:09 -0700633 if (make_parents(srcs[i])) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700634 printf("%s: failed to symlink %s to %s: making parents failed\n",
Doug Zongkera23075f2012-08-06 16:19:09 -0700635 name, srcs[i], target);
636 ++bad;
637 }
Doug Zongker60babf82009-09-18 15:11:24 -0700638 if (symlink(target, srcs[i]) < 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700639 printf("%s: failed to symlink %s to %s: %s\n",
Doug Zongker60babf82009-09-18 15:11:24 -0700640 name, srcs[i], target, strerror(errno));
Doug Zongkeracd73ed2012-03-22 14:32:52 -0700641 ++bad;
Doug Zongker60babf82009-09-18 15:11:24 -0700642 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700643 free(srcs[i]);
644 }
645 free(srcs);
Doug Zongkeracd73ed2012-03-22 14:32:52 -0700646 if (bad) {
647 return ErrorAbort(state, "%s: some symlinks failed", name);
648 }
Doug Zongker512536a2010-02-17 16:11:44 -0800649 return StringValue(strdup(""));
Doug Zongker9931f7f2009-06-10 14:11:53 -0700650}
651
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700652struct perm_parsed_args {
653 bool has_uid;
654 uid_t uid;
655 bool has_gid;
656 gid_t gid;
657 bool has_mode;
658 mode_t mode;
659 bool has_fmode;
660 mode_t fmode;
661 bool has_dmode;
662 mode_t dmode;
663 bool has_selabel;
664 char* selabel;
665 bool has_capabilities;
666 uint64_t capabilities;
667};
668
Michael Runged4a63422014-10-22 19:48:41 -0700669static struct perm_parsed_args ParsePermArgs(State * state, int argc, char** args) {
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700670 int i;
671 struct perm_parsed_args parsed;
672 int bad = 0;
673 static int max_warnings = 20;
674
675 memset(&parsed, 0, sizeof(parsed));
676
677 for (i = 1; i < argc; i += 2) {
678 if (strcmp("uid", args[i]) == 0) {
679 int64_t uid;
680 if (sscanf(args[i+1], "%" SCNd64, &uid) == 1) {
681 parsed.uid = uid;
682 parsed.has_uid = true;
683 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700684 uiPrintf(state, "ParsePermArgs: invalid UID \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700685 bad++;
686 }
687 continue;
688 }
689 if (strcmp("gid", args[i]) == 0) {
690 int64_t gid;
691 if (sscanf(args[i+1], "%" SCNd64, &gid) == 1) {
692 parsed.gid = gid;
693 parsed.has_gid = true;
694 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700695 uiPrintf(state, "ParsePermArgs: invalid GID \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700696 bad++;
697 }
698 continue;
699 }
700 if (strcmp("mode", args[i]) == 0) {
701 int32_t mode;
702 if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) {
703 parsed.mode = mode;
704 parsed.has_mode = true;
705 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700706 uiPrintf(state, "ParsePermArgs: invalid mode \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700707 bad++;
708 }
709 continue;
710 }
711 if (strcmp("dmode", args[i]) == 0) {
712 int32_t mode;
713 if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) {
714 parsed.dmode = mode;
715 parsed.has_dmode = true;
716 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700717 uiPrintf(state, "ParsePermArgs: invalid dmode \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700718 bad++;
719 }
720 continue;
721 }
722 if (strcmp("fmode", args[i]) == 0) {
723 int32_t mode;
724 if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) {
725 parsed.fmode = mode;
726 parsed.has_fmode = true;
727 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700728 uiPrintf(state, "ParsePermArgs: invalid fmode \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700729 bad++;
730 }
731 continue;
732 }
733 if (strcmp("capabilities", args[i]) == 0) {
734 int64_t capabilities;
735 if (sscanf(args[i+1], "%" SCNi64, &capabilities) == 1) {
736 parsed.capabilities = capabilities;
737 parsed.has_capabilities = true;
738 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700739 uiPrintf(state, "ParsePermArgs: invalid capabilities \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700740 bad++;
741 }
742 continue;
743 }
744 if (strcmp("selabel", args[i]) == 0) {
745 if (args[i+1][0] != '\0') {
746 parsed.selabel = args[i+1];
747 parsed.has_selabel = true;
748 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700749 uiPrintf(state, "ParsePermArgs: invalid selabel \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700750 bad++;
751 }
752 continue;
753 }
754 if (max_warnings != 0) {
755 printf("ParsedPermArgs: unknown key \"%s\", ignoring\n", args[i]);
756 max_warnings--;
757 if (max_warnings == 0) {
758 printf("ParsedPermArgs: suppressing further warnings\n");
759 }
760 }
761 }
762 return parsed;
763}
764
765static int ApplyParsedPerms(
Michael Runged4a63422014-10-22 19:48:41 -0700766 State * state,
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700767 const char* filename,
768 const struct stat *statptr,
769 struct perm_parsed_args parsed)
770{
771 int bad = 0;
772
Nick Kralevich68802412014-10-23 20:36:42 -0700773 if (parsed.has_selabel) {
774 if (lsetfilecon(filename, parsed.selabel) != 0) {
775 uiPrintf(state, "ApplyParsedPerms: lsetfilecon of %s to %s failed: %s\n",
776 filename, parsed.selabel, strerror(errno));
777 bad++;
778 }
779 }
780
Nick Kraleviche4612512013-09-10 15:34:19 -0700781 /* ignore symlinks */
782 if (S_ISLNK(statptr->st_mode)) {
Nick Kralevich68802412014-10-23 20:36:42 -0700783 return bad;
Nick Kraleviche4612512013-09-10 15:34:19 -0700784 }
785
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700786 if (parsed.has_uid) {
787 if (chown(filename, parsed.uid, -1) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700788 uiPrintf(state, "ApplyParsedPerms: chown of %s to %d failed: %s\n",
789 filename, parsed.uid, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700790 bad++;
791 }
792 }
793
794 if (parsed.has_gid) {
795 if (chown(filename, -1, parsed.gid) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700796 uiPrintf(state, "ApplyParsedPerms: chgrp of %s to %d failed: %s\n",
797 filename, parsed.gid, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700798 bad++;
799 }
800 }
801
802 if (parsed.has_mode) {
803 if (chmod(filename, parsed.mode) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700804 uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n",
805 filename, parsed.mode, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700806 bad++;
807 }
808 }
809
810 if (parsed.has_dmode && S_ISDIR(statptr->st_mode)) {
811 if (chmod(filename, parsed.dmode) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700812 uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n",
813 filename, parsed.dmode, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700814 bad++;
815 }
816 }
817
818 if (parsed.has_fmode && S_ISREG(statptr->st_mode)) {
819 if (chmod(filename, parsed.fmode) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700820 uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n",
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700821 filename, parsed.fmode, strerror(errno));
822 bad++;
823 }
824 }
825
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700826 if (parsed.has_capabilities && S_ISREG(statptr->st_mode)) {
827 if (parsed.capabilities == 0) {
828 if ((removexattr(filename, XATTR_NAME_CAPS) == -1) && (errno != ENODATA)) {
829 // Report failure unless it's ENODATA (attribute not set)
Michael Runged4a63422014-10-22 19:48:41 -0700830 uiPrintf(state, "ApplyParsedPerms: removexattr of %s to %" PRIx64 " failed: %s\n",
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700831 filename, parsed.capabilities, strerror(errno));
832 bad++;
833 }
834 } else {
835 struct vfs_cap_data cap_data;
836 memset(&cap_data, 0, sizeof(cap_data));
837 cap_data.magic_etc = VFS_CAP_REVISION | VFS_CAP_FLAGS_EFFECTIVE;
838 cap_data.data[0].permitted = (uint32_t) (parsed.capabilities & 0xffffffff);
839 cap_data.data[0].inheritable = 0;
840 cap_data.data[1].permitted = (uint32_t) (parsed.capabilities >> 32);
841 cap_data.data[1].inheritable = 0;
842 if (setxattr(filename, XATTR_NAME_CAPS, &cap_data, sizeof(cap_data), 0) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700843 uiPrintf(state, "ApplyParsedPerms: setcap of %s to %" PRIx64 " failed: %s\n",
844 filename, parsed.capabilities, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700845 bad++;
846 }
847 }
848 }
849
850 return bad;
851}
852
853// nftw doesn't allow us to pass along context, so we need to use
854// global variables. *sigh*
855static struct perm_parsed_args recursive_parsed_args;
Michael Runged4a63422014-10-22 19:48:41 -0700856static State* recursive_state;
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700857
858static int do_SetMetadataRecursive(const char* filename, const struct stat *statptr,
859 int fileflags, struct FTW *pfwt) {
Michael Runged4a63422014-10-22 19:48:41 -0700860 return ApplyParsedPerms(recursive_state, filename, statptr, recursive_parsed_args);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700861}
862
863static Value* SetMetadataFn(const char* name, State* state, int argc, Expr* argv[]) {
864 int i;
865 int bad = 0;
866 static int nwarnings = 0;
867 struct stat sb;
868 Value* result = NULL;
869
870 bool recursive = (strcmp(name, "set_metadata_recursive") == 0);
871
872 if ((argc % 2) != 1) {
873 return ErrorAbort(state, "%s() expects an odd number of arguments, got %d",
874 name, argc);
875 }
876
877 char** args = ReadVarArgs(state, argc, argv);
878 if (args == NULL) return NULL;
879
880 if (lstat(args[0], &sb) == -1) {
881 result = ErrorAbort(state, "%s: Error on lstat of \"%s\": %s", name, args[0], strerror(errno));
882 goto done;
883 }
884
Michael Runged4a63422014-10-22 19:48:41 -0700885 struct perm_parsed_args parsed = ParsePermArgs(state, argc, args);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700886
887 if (recursive) {
888 recursive_parsed_args = parsed;
Michael Runged4a63422014-10-22 19:48:41 -0700889 recursive_state = state;
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700890 bad += nftw(args[0], do_SetMetadataRecursive, 30, FTW_CHDIR | FTW_DEPTH | FTW_PHYS);
891 memset(&recursive_parsed_args, 0, sizeof(recursive_parsed_args));
Michael Runged4a63422014-10-22 19:48:41 -0700892 recursive_state = NULL;
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700893 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700894 bad += ApplyParsedPerms(state, args[0], &sb, parsed);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700895 }
896
897done:
898 for (i = 0; i < argc; ++i) {
899 free(args[i]);
900 }
901 free(args);
902
903 if (result != NULL) {
904 return result;
905 }
906
907 if (bad > 0) {
908 return ErrorAbort(state, "%s: some changes failed", name);
909 }
910
911 return StringValue(strdup(""));
912}
Doug Zongker8edb00c2009-06-11 17:21:44 -0700913
Doug Zongker512536a2010-02-17 16:11:44 -0800914Value* GetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker8edb00c2009-06-11 17:21:44 -0700915 if (argc != 1) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700916 return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700917 }
918 char* key;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700919 key = Evaluate(state, argv[0]);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700920 if (key == NULL) return NULL;
921
922 char value[PROPERTY_VALUE_MAX];
923 property_get(key, value, "");
924 free(key);
925
Doug Zongker512536a2010-02-17 16:11:44 -0800926 return StringValue(strdup(value));
Doug Zongker8edb00c2009-06-11 17:21:44 -0700927}
928
929
Doug Zongker47cace92009-06-18 10:11:50 -0700930// file_getprop(file, key)
931//
932// interprets 'file' as a getprop-style file (key=value pairs, one
Michael Rungeaa1a31e2014-04-25 18:47:18 -0700933// per line. # comment lines,blank lines, lines without '=' ignored),
934// and returns the value for 'key' (or "" if it isn't defined).
Doug Zongker512536a2010-02-17 16:11:44 -0800935Value* FileGetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker47cace92009-06-18 10:11:50 -0700936 char* result = NULL;
937 char* buffer = NULL;
938 char* filename;
939 char* key;
940 if (ReadArgs(state, argv, 2, &filename, &key) < 0) {
941 return NULL;
942 }
943
944 struct stat st;
945 if (stat(filename, &st) < 0) {
946 ErrorAbort(state, "%s: failed to stat \"%s\": %s",
947 name, filename, strerror(errno));
948 goto done;
949 }
950
951#define MAX_FILE_GETPROP_SIZE 65536
952
953 if (st.st_size > MAX_FILE_GETPROP_SIZE) {
954 ErrorAbort(state, "%s too large for %s (max %d)",
955 filename, name, MAX_FILE_GETPROP_SIZE);
956 goto done;
957 }
958
959 buffer = malloc(st.st_size+1);
960 if (buffer == NULL) {
Mark Salyzynf3bb31c2014-03-14 09:39:48 -0700961 ErrorAbort(state, "%s: failed to alloc %lld bytes", name, (long long)st.st_size+1);
Doug Zongker47cace92009-06-18 10:11:50 -0700962 goto done;
963 }
964
965 FILE* f = fopen(filename, "rb");
966 if (f == NULL) {
967 ErrorAbort(state, "%s: failed to open %s: %s",
968 name, filename, strerror(errno));
969 goto done;
970 }
971
972 if (fread(buffer, 1, st.st_size, f) != st.st_size) {
Doug Zongkera23075f2012-08-06 16:19:09 -0700973 ErrorAbort(state, "%s: failed to read %lld bytes from %s",
Mark Salyzynf3bb31c2014-03-14 09:39:48 -0700974 name, (long long)st.st_size+1, filename);
Doug Zongker47cace92009-06-18 10:11:50 -0700975 fclose(f);
976 goto done;
977 }
978 buffer[st.st_size] = '\0';
979
980 fclose(f);
981
982 char* line = strtok(buffer, "\n");
983 do {
984 // skip whitespace at start of line
985 while (*line && isspace(*line)) ++line;
986
987 // comment or blank line: skip to next line
988 if (*line == '\0' || *line == '#') continue;
989
990 char* equal = strchr(line, '=');
991 if (equal == NULL) {
Michael Rungeaa1a31e2014-04-25 18:47:18 -0700992 continue;
Doug Zongker47cace92009-06-18 10:11:50 -0700993 }
994
995 // trim whitespace between key and '='
996 char* key_end = equal-1;
997 while (key_end > line && isspace(*key_end)) --key_end;
998 key_end[1] = '\0';
999
1000 // not the key we're looking for
1001 if (strcmp(key, line) != 0) continue;
1002
1003 // skip whitespace after the '=' to the start of the value
1004 char* val_start = equal+1;
1005 while(*val_start && isspace(*val_start)) ++val_start;
1006
1007 // trim trailing whitespace
1008 char* val_end = val_start + strlen(val_start)-1;
1009 while (val_end > val_start && isspace(*val_end)) --val_end;
1010 val_end[1] = '\0';
1011
1012 result = strdup(val_start);
1013 break;
1014
1015 } while ((line = strtok(NULL, "\n")));
1016
1017 if (result == NULL) result = strdup("");
1018
1019 done:
1020 free(filename);
1021 free(key);
1022 free(buffer);
Doug Zongker512536a2010-02-17 16:11:44 -08001023 return StringValue(result);
Doug Zongker47cace92009-06-18 10:11:50 -07001024}
1025
1026
Doug Zongker8edb00c2009-06-11 17:21:44 -07001027static bool write_raw_image_cb(const unsigned char* data,
1028 int data_len, void* ctx) {
1029 int r = mtd_write_data((MtdWriteContext*)ctx, (const char *)data, data_len);
1030 if (r == data_len) return true;
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001031 printf("%s\n", strerror(errno));
Doug Zongker8edb00c2009-06-11 17:21:44 -07001032 return false;
1033}
1034
Doug Zongker179b2d92011-04-12 15:49:04 -07001035// write_raw_image(filename_or_blob, partition)
Doug Zongker512536a2010-02-17 16:11:44 -08001036Value* WriteRawImageFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker8edb00c2009-06-11 17:21:44 -07001037 char* result = NULL;
1038
Doug Zongker179b2d92011-04-12 15:49:04 -07001039 Value* partition_value;
1040 Value* contents;
1041 if (ReadValueArgs(state, argv, 2, &contents, &partition_value) < 0) {
Doug Zongker8edb00c2009-06-11 17:21:44 -07001042 return NULL;
1043 }
1044
Doug Zongkerdaefc1d2011-10-31 09:34:15 -07001045 char* partition = NULL;
Doug Zongker179b2d92011-04-12 15:49:04 -07001046 if (partition_value->type != VAL_STRING) {
1047 ErrorAbort(state, "partition argument to %s must be string", name);
1048 goto done;
1049 }
Doug Zongkerdaefc1d2011-10-31 09:34:15 -07001050 partition = partition_value->data;
Doug Zongker8edb00c2009-06-11 17:21:44 -07001051 if (strlen(partition) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001052 ErrorAbort(state, "partition argument to %s can't be empty", name);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001053 goto done;
1054 }
Doug Zongker179b2d92011-04-12 15:49:04 -07001055 if (contents->type == VAL_STRING && strlen((char*) contents->data) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001056 ErrorAbort(state, "file argument to %s can't be empty", name);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001057 goto done;
1058 }
1059
1060 mtd_scan_partitions();
1061 const MtdPartition* mtd = mtd_find_partition_by_name(partition);
1062 if (mtd == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001063 printf("%s: no mtd partition named \"%s\"\n", name, partition);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001064 result = strdup("");
1065 goto done;
1066 }
1067
1068 MtdWriteContext* ctx = mtd_write_partition(mtd);
1069 if (ctx == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001070 printf("%s: can't write mtd partition \"%s\"\n",
Doug Zongker8edb00c2009-06-11 17:21:44 -07001071 name, partition);
1072 result = strdup("");
1073 goto done;
1074 }
1075
1076 bool success;
1077
Doug Zongker179b2d92011-04-12 15:49:04 -07001078 if (contents->type == VAL_STRING) {
1079 // we're given a filename as the contents
1080 char* filename = contents->data;
1081 FILE* f = fopen(filename, "rb");
1082 if (f == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001083 printf("%s: can't open %s: %s\n",
Doug Zongker179b2d92011-04-12 15:49:04 -07001084 name, filename, strerror(errno));
1085 result = strdup("");
1086 goto done;
Doug Zongker8edb00c2009-06-11 17:21:44 -07001087 }
Doug Zongker179b2d92011-04-12 15:49:04 -07001088
1089 success = true;
1090 char* buffer = malloc(BUFSIZ);
1091 int read;
1092 while (success && (read = fread(buffer, 1, BUFSIZ, f)) > 0) {
1093 int wrote = mtd_write_data(ctx, buffer, read);
1094 success = success && (wrote == read);
1095 }
1096 free(buffer);
1097 fclose(f);
1098 } else {
1099 // we're given a blob as the contents
1100 ssize_t wrote = mtd_write_data(ctx, contents->data, contents->size);
1101 success = (wrote == contents->size);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001102 }
Doug Zongker179b2d92011-04-12 15:49:04 -07001103 if (!success) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001104 printf("mtd_write_data to %s failed: %s\n",
Doug Zongker179b2d92011-04-12 15:49:04 -07001105 partition, strerror(errno));
1106 }
Doug Zongker8edb00c2009-06-11 17:21:44 -07001107
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001108 if (mtd_erase_blocks(ctx, -1) == -1) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001109 printf("%s: error erasing blocks of %s\n", name, partition);
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001110 }
1111 if (mtd_write_close(ctx) != 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001112 printf("%s: error closing write of %s\n", name, partition);
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001113 }
1114
Doug Zongker179b2d92011-04-12 15:49:04 -07001115 printf("%s %s partition\n",
1116 success ? "wrote" : "failed to write", partition);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001117
1118 result = success ? partition : strdup("");
1119
1120done:
Doug Zongker179b2d92011-04-12 15:49:04 -07001121 if (result != partition) FreeValue(partition_value);
1122 FreeValue(contents);
Doug Zongker512536a2010-02-17 16:11:44 -08001123 return StringValue(result);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001124}
1125
Doug Zongker8edb00c2009-06-11 17:21:44 -07001126// apply_patch_space(bytes)
Doug Zongkerc4351c72010-02-22 14:46:32 -08001127Value* ApplyPatchSpaceFn(const char* name, State* state,
1128 int argc, Expr* argv[]) {
1129 char* bytes_str;
1130 if (ReadArgs(state, argv, 1, &bytes_str) < 0) {
1131 return NULL;
1132 }
1133
1134 char* endptr;
1135 size_t bytes = strtol(bytes_str, &endptr, 10);
1136 if (bytes == 0 && endptr == bytes_str) {
1137 ErrorAbort(state, "%s(): can't parse \"%s\" as byte count\n\n",
1138 name, bytes_str);
1139 free(bytes_str);
1140 return NULL;
1141 }
1142
1143 return StringValue(strdup(CacheSizeCheck(bytes) ? "" : "t"));
1144}
1145
Doug Zongker52b40362014-02-10 15:30:30 -08001146// apply_patch(file, size, init_sha1, tgt_sha1, patch)
1147
Doug Zongker512536a2010-02-17 16:11:44 -08001148Value* ApplyPatchFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkerc4351c72010-02-22 14:46:32 -08001149 if (argc < 6 || (argc % 2) == 1) {
1150 return ErrorAbort(state, "%s(): expected at least 6 args and an "
1151 "even number, got %d",
1152 name, argc);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001153 }
1154
Doug Zongkerc4351c72010-02-22 14:46:32 -08001155 char* source_filename;
1156 char* target_filename;
1157 char* target_sha1;
1158 char* target_size_str;
1159 if (ReadArgs(state, argv, 4, &source_filename, &target_filename,
1160 &target_sha1, &target_size_str) < 0) {
1161 return NULL;
Doug Zongker8edb00c2009-06-11 17:21:44 -07001162 }
Doug Zongker8edb00c2009-06-11 17:21:44 -07001163
Doug Zongkerc4351c72010-02-22 14:46:32 -08001164 char* endptr;
1165 size_t target_size = strtol(target_size_str, &endptr, 10);
1166 if (target_size == 0 && endptr == target_size_str) {
1167 ErrorAbort(state, "%s(): can't parse \"%s\" as byte count",
1168 name, target_size_str);
1169 free(source_filename);
1170 free(target_filename);
1171 free(target_sha1);
1172 free(target_size_str);
1173 return NULL;
1174 }
1175
1176 int patchcount = (argc-4) / 2;
1177 Value** patches = ReadValueVarArgs(state, argc-4, argv+4);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001178
1179 int i;
Doug Zongkerc4351c72010-02-22 14:46:32 -08001180 for (i = 0; i < patchcount; ++i) {
1181 if (patches[i*2]->type != VAL_STRING) {
1182 ErrorAbort(state, "%s(): sha-1 #%d is not string", name, i);
1183 break;
1184 }
1185 if (patches[i*2+1]->type != VAL_BLOB) {
1186 ErrorAbort(state, "%s(): patch #%d is not blob", name, i);
1187 break;
1188 }
Doug Zongker8edb00c2009-06-11 17:21:44 -07001189 }
Doug Zongkerc4351c72010-02-22 14:46:32 -08001190 if (i != patchcount) {
1191 for (i = 0; i < patchcount*2; ++i) {
1192 FreeValue(patches[i]);
1193 }
1194 free(patches);
1195 return NULL;
1196 }
Doug Zongker8edb00c2009-06-11 17:21:44 -07001197
Doug Zongkerc4351c72010-02-22 14:46:32 -08001198 char** patch_sha_str = malloc(patchcount * sizeof(char*));
1199 for (i = 0; i < patchcount; ++i) {
1200 patch_sha_str[i] = patches[i*2]->data;
1201 patches[i*2]->data = NULL;
1202 FreeValue(patches[i*2]);
1203 patches[i] = patches[i*2+1];
Doug Zongker8edb00c2009-06-11 17:21:44 -07001204 }
Doug Zongkerc4351c72010-02-22 14:46:32 -08001205
1206 int result = applypatch(source_filename, target_filename,
1207 target_sha1, target_size,
Doug Zongkera3ccba62012-08-20 15:28:02 -07001208 patchcount, patch_sha_str, patches, NULL);
Doug Zongkerc4351c72010-02-22 14:46:32 -08001209
1210 for (i = 0; i < patchcount; ++i) {
1211 FreeValue(patches[i]);
1212 }
1213 free(patch_sha_str);
1214 free(patches);
1215
1216 return StringValue(strdup(result == 0 ? "t" : ""));
1217}
1218
1219// apply_patch_check(file, [sha1_1, ...])
1220Value* ApplyPatchCheckFn(const char* name, State* state,
1221 int argc, Expr* argv[]) {
1222 if (argc < 1) {
1223 return ErrorAbort(state, "%s(): expected at least 1 arg, got %d",
1224 name, argc);
1225 }
1226
1227 char* filename;
1228 if (ReadArgs(state, argv, 1, &filename) < 0) {
1229 return NULL;
1230 }
1231
1232 int patchcount = argc-1;
1233 char** sha1s = ReadVarArgs(state, argc-1, argv+1);
1234
1235 int result = applypatch_check(filename, patchcount, sha1s);
1236
1237 int i;
1238 for (i = 0; i < patchcount; ++i) {
1239 free(sha1s[i]);
1240 }
1241 free(sha1s);
1242
1243 return StringValue(strdup(result == 0 ? "t" : ""));
Doug Zongker8edb00c2009-06-11 17:21:44 -07001244}
1245
Doug Zongker512536a2010-02-17 16:11:44 -08001246Value* UIPrintFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001247 char** args = ReadVarArgs(state, argc, argv);
1248 if (args == NULL) {
1249 return NULL;
1250 }
1251
1252 int size = 0;
1253 int i;
1254 for (i = 0; i < argc; ++i) {
1255 size += strlen(args[i]);
1256 }
1257 char* buffer = malloc(size+1);
1258 size = 0;
1259 for (i = 0; i < argc; ++i) {
1260 strcpy(buffer+size, args[i]);
1261 size += strlen(args[i]);
1262 free(args[i]);
1263 }
1264 free(args);
1265 buffer[size] = '\0';
Michael Runged4a63422014-10-22 19:48:41 -07001266 uiPrint(state, buffer);
Doug Zongker512536a2010-02-17 16:11:44 -08001267 return StringValue(buffer);
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001268}
1269
Doug Zongkerd0181b82011-10-19 10:51:12 -07001270Value* WipeCacheFn(const char* name, State* state, int argc, Expr* argv[]) {
1271 if (argc != 0) {
1272 return ErrorAbort(state, "%s() expects no args, got %d", name, argc);
1273 }
1274 fprintf(((UpdaterInfo*)(state->cookie))->cmd_pipe, "wipe_cache\n");
1275 return StringValue(strdup("t"));
1276}
1277
Doug Zongker512536a2010-02-17 16:11:44 -08001278Value* RunProgramFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001279 if (argc < 1) {
1280 return ErrorAbort(state, "%s() expects at least 1 arg", name);
1281 }
1282 char** args = ReadVarArgs(state, argc, argv);
1283 if (args == NULL) {
1284 return NULL;
1285 }
1286
1287 char** args2 = malloc(sizeof(char*) * (argc+1));
1288 memcpy(args2, args, sizeof(char*) * argc);
1289 args2[argc] = NULL;
1290
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001291 printf("about to run program [%s] with %d args\n", args2[0], argc);
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001292
1293 pid_t child = fork();
1294 if (child == 0) {
1295 execv(args2[0], args2);
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001296 printf("run_program: execv failed: %s\n", strerror(errno));
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001297 _exit(1);
1298 }
1299 int status;
1300 waitpid(child, &status, 0);
1301 if (WIFEXITED(status)) {
1302 if (WEXITSTATUS(status) != 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001303 printf("run_program: child exited with status %d\n",
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001304 WEXITSTATUS(status));
1305 }
1306 } else if (WIFSIGNALED(status)) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001307 printf("run_program: child terminated by signal %d\n",
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001308 WTERMSIG(status));
1309 }
1310
1311 int i;
1312 for (i = 0; i < argc; ++i) {
1313 free(args[i]);
1314 }
1315 free(args);
1316 free(args2);
1317
1318 char buffer[20];
1319 sprintf(buffer, "%d", status);
1320
Doug Zongker512536a2010-02-17 16:11:44 -08001321 return StringValue(strdup(buffer));
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001322}
1323
Doug Zongker512536a2010-02-17 16:11:44 -08001324// sha1_check(data)
1325// to return the sha1 of the data (given in the format returned by
1326// read_file).
1327//
1328// sha1_check(data, sha1_hex, [sha1_hex, ...])
1329// returns the sha1 of the file if it matches any of the hex
1330// strings passed, or "" if it does not equal any of them.
1331//
1332Value* Sha1CheckFn(const char* name, State* state, int argc, Expr* argv[]) {
1333 if (argc < 1) {
1334 return ErrorAbort(state, "%s() expects at least 1 arg", name);
1335 }
1336
1337 Value** args = ReadValueVarArgs(state, argc, argv);
1338 if (args == NULL) {
1339 return NULL;
1340 }
1341
1342 if (args[0]->size < 0) {
Doug Zongker512536a2010-02-17 16:11:44 -08001343 return StringValue(strdup(""));
1344 }
1345 uint8_t digest[SHA_DIGEST_SIZE];
Doug Zongkerbac7fba2013-04-10 11:32:17 -07001346 SHA_hash(args[0]->data, args[0]->size, digest);
Doug Zongker512536a2010-02-17 16:11:44 -08001347 FreeValue(args[0]);
1348
1349 if (argc == 1) {
1350 return StringValue(PrintSha1(digest));
1351 }
1352
1353 int i;
1354 uint8_t* arg_digest = malloc(SHA_DIGEST_SIZE);
1355 for (i = 1; i < argc; ++i) {
1356 if (args[i]->type != VAL_STRING) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001357 printf("%s(): arg %d is not a string; skipping",
Doug Zongker512536a2010-02-17 16:11:44 -08001358 name, i);
1359 } else if (ParseSha1(args[i]->data, arg_digest) != 0) {
1360 // Warn about bad args and skip them.
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001361 printf("%s(): error parsing \"%s\" as sha-1; skipping",
1362 name, args[i]->data);
Doug Zongker512536a2010-02-17 16:11:44 -08001363 } else if (memcmp(digest, arg_digest, SHA_DIGEST_SIZE) == 0) {
1364 break;
1365 }
1366 FreeValue(args[i]);
1367 }
1368 if (i >= argc) {
1369 // Didn't match any of the hex strings; return false.
1370 return StringValue(strdup(""));
1371 }
1372 // Found a match; free all the remaining arguments and return the
1373 // matched one.
1374 int j;
1375 for (j = i+1; j < argc; ++j) {
1376 FreeValue(args[j]);
1377 }
1378 return args[i];
1379}
1380
Hristo Bojinovdb314d62010-08-02 10:29:49 -07001381// Read a local file and return its contents (the Value* returned
Doug Zongker512536a2010-02-17 16:11:44 -08001382// is actually a FileContents*).
1383Value* ReadFileFn(const char* name, State* state, int argc, Expr* argv[]) {
1384 if (argc != 1) {
1385 return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
1386 }
1387 char* filename;
1388 if (ReadArgs(state, argv, 1, &filename) < 0) return NULL;
1389
1390 Value* v = malloc(sizeof(Value));
1391 v->type = VAL_BLOB;
1392
1393 FileContents fc;
Doug Zongkera1bc1482014-02-13 15:18:19 -08001394 if (LoadFileContents(filename, &fc) != 0) {
Doug Zongker512536a2010-02-17 16:11:44 -08001395 free(filename);
Michael Runge6eed2242013-12-13 17:13:11 -08001396 v->size = -1;
1397 v->data = NULL;
Doug Zongker512536a2010-02-17 16:11:44 -08001398 free(fc.data);
Michael Runge6eed2242013-12-13 17:13:11 -08001399 return v;
Doug Zongker512536a2010-02-17 16:11:44 -08001400 }
1401
1402 v->size = fc.size;
1403 v->data = (char*)fc.data;
1404
1405 free(filename);
1406 return v;
1407}
Doug Zongker8edb00c2009-06-11 17:21:44 -07001408
Doug Zongkerc87bab12013-11-25 13:53:25 -08001409// Immediately reboot the device. Recovery is not finished normally,
1410// so if you reboot into recovery it will re-start applying the
1411// current package (because nothing has cleared the copy of the
1412// arguments stored in the BCB).
1413//
1414// The argument is the partition name passed to the android reboot
1415// property. It can be "recovery" to boot from the recovery
1416// partition, or "" (empty string) to boot from the regular boot
1417// partition.
1418Value* RebootNowFn(const char* name, State* state, int argc, Expr* argv[]) {
1419 if (argc != 2) {
1420 return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
1421 }
1422
1423 char* filename;
1424 char* property;
1425 if (ReadArgs(state, argv, 2, &filename, &property) < 0) return NULL;
1426
1427 char buffer[80];
1428
1429 // zero out the 'command' field of the bootloader message.
1430 memset(buffer, 0, sizeof(((struct bootloader_message*)0)->command));
1431 FILE* f = fopen(filename, "r+b");
1432 fseek(f, offsetof(struct bootloader_message, command), SEEK_SET);
1433 fwrite(buffer, sizeof(((struct bootloader_message*)0)->command), 1, f);
1434 fclose(f);
1435 free(filename);
1436
1437 strcpy(buffer, "reboot,");
1438 if (property != NULL) {
1439 strncat(buffer, property, sizeof(buffer)-10);
1440 }
1441
1442 property_set(ANDROID_RB_PROPERTY, buffer);
1443
1444 sleep(5);
1445 free(property);
1446 ErrorAbort(state, "%s() failed to reboot", name);
1447 return NULL;
1448}
1449
1450// Store a string value somewhere that future invocations of recovery
1451// can access it. This value is called the "stage" and can be used to
1452// drive packages that need to do reboots in the middle of
1453// installation and keep track of where they are in the multi-stage
1454// install.
1455//
1456// The first argument is the block device for the misc partition
1457// ("/misc" in the fstab), which is where this value is stored. The
1458// second argument is the string to store; it should not exceed 31
1459// bytes.
1460Value* SetStageFn(const char* name, State* state, int argc, Expr* argv[]) {
1461 if (argc != 2) {
1462 return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
1463 }
1464
1465 char* filename;
1466 char* stagestr;
1467 if (ReadArgs(state, argv, 2, &filename, &stagestr) < 0) return NULL;
1468
1469 // Store this value in the misc partition, immediately after the
1470 // bootloader message that the main recovery uses to save its
1471 // arguments in case of the device restarting midway through
1472 // package installation.
1473 FILE* f = fopen(filename, "r+b");
1474 fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET);
1475 int to_write = strlen(stagestr)+1;
1476 int max_size = sizeof(((struct bootloader_message*)0)->stage);
1477 if (to_write > max_size) {
1478 to_write = max_size;
1479 stagestr[max_size-1] = 0;
1480 }
1481 fwrite(stagestr, to_write, 1, f);
1482 fclose(f);
1483
1484 free(stagestr);
1485 return StringValue(filename);
1486}
1487
1488// Return the value most recently saved with SetStageFn. The argument
1489// is the block device for the misc partition.
1490Value* GetStageFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -08001491 if (argc != 1) {
Doug Zongkerc87bab12013-11-25 13:53:25 -08001492 return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
1493 }
1494
1495 char* filename;
1496 if (ReadArgs(state, argv, 1, &filename) < 0) return NULL;
1497
1498 char buffer[sizeof(((struct bootloader_message*)0)->stage)];
1499 FILE* f = fopen(filename, "rb");
1500 fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET);
1501 fread(buffer, sizeof(buffer), 1, f);
1502 fclose(f);
1503 buffer[sizeof(buffer)-1] = '\0';
1504
1505 return StringValue(strdup(buffer));
1506}
1507
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -08001508Value* WipeBlockDeviceFn(const char* name, State* state, int argc, Expr* argv[]) {
1509 if (argc != 2) {
1510 return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
1511 }
1512
1513 char* filename;
1514 char* len_str;
1515 if (ReadArgs(state, argv, 2, &filename, &len_str) < 0) return NULL;
1516
1517 size_t len = strtoull(len_str, NULL, 0);
1518 int fd = open(filename, O_WRONLY, 0644);
1519 int success = wipe_block_device(fd, len);
1520
1521 free(filename);
1522 free(len_str);
1523
1524 close(fd);
1525
1526 return StringValue(strdup(success ? "t" : ""));
1527}
1528
Doug Zongkerc704e062014-05-23 08:40:35 -07001529Value* EnableRebootFn(const char* name, State* state, int argc, Expr* argv[]) {
1530 if (argc != 0) {
1531 return ErrorAbort(state, "%s() expects no args, got %d", name, argc);
1532 }
1533 UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
1534 fprintf(ui->cmd_pipe, "enable_reboot\n");
1535 return StringValue(strdup("t"));
1536}
1537
Doug Zongker9931f7f2009-06-10 14:11:53 -07001538void RegisterInstallFunctions() {
1539 RegisterFunction("mount", MountFn);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001540 RegisterFunction("is_mounted", IsMountedFn);
Doug Zongker9931f7f2009-06-10 14:11:53 -07001541 RegisterFunction("unmount", UnmountFn);
1542 RegisterFunction("format", FormatFn);
1543 RegisterFunction("show_progress", ShowProgressFn);
Doug Zongkerfbf3c102009-06-24 09:36:20 -07001544 RegisterFunction("set_progress", SetProgressFn);
Doug Zongker9931f7f2009-06-10 14:11:53 -07001545 RegisterFunction("delete", DeleteFn);
1546 RegisterFunction("delete_recursive", DeleteFn);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001547 RegisterFunction("package_extract_dir", PackageExtractDirFn);
1548 RegisterFunction("package_extract_file", PackageExtractFileFn);
Doug Zongker9931f7f2009-06-10 14:11:53 -07001549 RegisterFunction("symlink", SymlinkFn);
Nick Kralevich5dbdef02013-09-07 14:41:06 -07001550
Nick Kralevich5dbdef02013-09-07 14:41:06 -07001551 // Usage:
1552 // set_metadata("filename", "key1", "value1", "key2", "value2", ...)
1553 // Example:
1554 // set_metadata("/system/bin/netcfg", "uid", 0, "gid", 3003, "mode", 02750, "selabel", "u:object_r:system_file:s0", "capabilities", 0x0);
1555 RegisterFunction("set_metadata", SetMetadataFn);
1556
1557 // Usage:
1558 // set_metadata_recursive("dirname", "key1", "value1", "key2", "value2", ...)
1559 // Example:
1560 // set_metadata_recursive("/system", "uid", 0, "gid", 0, "fmode", 0644, "dmode", 0755, "selabel", "u:object_r:system_file:s0", "capabilities", 0x0);
1561 RegisterFunction("set_metadata_recursive", SetMetadataFn);
1562
Doug Zongker8edb00c2009-06-11 17:21:44 -07001563 RegisterFunction("getprop", GetPropFn);
Doug Zongker47cace92009-06-18 10:11:50 -07001564 RegisterFunction("file_getprop", FileGetPropFn);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001565 RegisterFunction("write_raw_image", WriteRawImageFn);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001566
1567 RegisterFunction("apply_patch", ApplyPatchFn);
Doug Zongkerc4351c72010-02-22 14:46:32 -08001568 RegisterFunction("apply_patch_check", ApplyPatchCheckFn);
1569 RegisterFunction("apply_patch_space", ApplyPatchSpaceFn);
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001570
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -08001571 RegisterFunction("wipe_block_device", WipeBlockDeviceFn);
Doug Zongker52b40362014-02-10 15:30:30 -08001572
Doug Zongker512536a2010-02-17 16:11:44 -08001573 RegisterFunction("read_file", ReadFileFn);
1574 RegisterFunction("sha1_check", Sha1CheckFn);
Michael Rungece7ca712013-11-06 17:42:20 -08001575 RegisterFunction("rename", RenameFn);
Doug Zongker512536a2010-02-17 16:11:44 -08001576
Doug Zongkerd0181b82011-10-19 10:51:12 -07001577 RegisterFunction("wipe_cache", WipeCacheFn);
1578
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001579 RegisterFunction("ui_print", UIPrintFn);
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001580
1581 RegisterFunction("run_program", RunProgramFn);
Doug Zongkerc87bab12013-11-25 13:53:25 -08001582
1583 RegisterFunction("reboot_now", RebootNowFn);
1584 RegisterFunction("get_stage", GetStageFn);
1585 RegisterFunction("set_stage", SetStageFn);
Doug Zongkerc704e062014-05-23 08:40:35 -07001586
1587 RegisterFunction("enable_reboot", EnableRebootFn);
Doug Zongker9931f7f2009-06-10 14:11:53 -07001588}