blob: 2b2ffb0c5d271e0b41e67d3efa57708737606733 [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"
Michael Rungeb278c252014-11-21 00:12:28 -080049#include "tune2fs.h"
Doug Zongker8edb00c2009-06-11 17:21:44 -070050
Doug Zongker3d177d02010-07-01 09:18:44 -070051#ifdef USE_EXT4
52#include "make_ext4fs.h"
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -080053#include "wipe.h"
Doug Zongker3d177d02010-07-01 09:18:44 -070054#endif
55
Michael Runged4a63422014-10-22 19:48:41 -070056void uiPrint(State* state, char* buffer) {
57 char* line = strtok(buffer, "\n");
58 UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
59 while (line) {
60 fprintf(ui->cmd_pipe, "ui_print %s\n", line);
61 line = strtok(NULL, "\n");
62 }
63 fprintf(ui->cmd_pipe, "ui_print\n");
64}
65
66__attribute__((__format__(printf, 2, 3))) __nonnull((2))
67void uiPrintf(State* state, const char* format, ...) {
68 char error_msg[1024];
69 va_list ap;
70 va_start(ap, format);
71 vsnprintf(error_msg, sizeof(error_msg), format, ap);
72 va_end(ap);
73 uiPrint(state, error_msg);
74}
75
Doug Zongker52b40362014-02-10 15:30:30 -080076// Take a sha-1 digest and return it as a newly-allocated hex string.
Doug Zongkerbc7ffed2014-08-15 14:31:52 -070077char* PrintSha1(const uint8_t* digest) {
Doug Zongker52b40362014-02-10 15:30:30 -080078 char* buffer = malloc(SHA_DIGEST_SIZE*2 + 1);
79 int i;
80 const char* alphabet = "0123456789abcdef";
81 for (i = 0; i < SHA_DIGEST_SIZE; ++i) {
82 buffer[i*2] = alphabet[(digest[i] >> 4) & 0xf];
83 buffer[i*2+1] = alphabet[digest[i] & 0xf];
84 }
85 buffer[i*2] = '\0';
86 return buffer;
87}
88
Doug Zongker3d177d02010-07-01 09:18:44 -070089// mount(fs_type, partition_type, location, mount_point)
Doug Zongker9931f7f2009-06-10 14:11:53 -070090//
Doug Zongker3d177d02010-07-01 09:18:44 -070091// fs_type="yaffs2" partition_type="MTD" location=partition
92// fs_type="ext4" partition_type="EMMC" location=device
Doug Zongker512536a2010-02-17 16:11:44 -080093Value* MountFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -070094 char* result = NULL;
Michael Runge168f7772014-10-22 17:05:08 -070095 if (argc != 4 && argc != 5) {
96 return ErrorAbort(state, "%s() expects 4-5 args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -070097 }
Doug Zongker3d177d02010-07-01 09:18:44 -070098 char* fs_type;
99 char* partition_type;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700100 char* location;
101 char* mount_point;
Michael Runge168f7772014-10-22 17:05:08 -0700102 char* mount_options;
103 bool has_mount_options;
104 if (argc == 5) {
105 has_mount_options = true;
106 if (ReadArgs(state, argv, 5, &fs_type, &partition_type,
107 &location, &mount_point, &mount_options) < 0) {
108 return NULL;
109 }
110 } else {
111 has_mount_options = false;
112 if (ReadArgs(state, argv, 4, &fs_type, &partition_type,
Doug Zongker3d177d02010-07-01 09:18:44 -0700113 &location, &mount_point) < 0) {
Michael Runge168f7772014-10-22 17:05:08 -0700114 return NULL;
115 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700116 }
117
Doug Zongker3d177d02010-07-01 09:18:44 -0700118 if (strlen(fs_type) == 0) {
119 ErrorAbort(state, "fs_type argument to %s() can't be empty", name);
120 goto done;
121 }
122 if (strlen(partition_type) == 0) {
123 ErrorAbort(state, "partition_type argument to %s() can't be empty",
124 name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700125 goto done;
126 }
127 if (strlen(location) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700128 ErrorAbort(state, "location argument to %s() can't be empty", name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700129 goto done;
130 }
131 if (strlen(mount_point) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700132 ErrorAbort(state, "mount_point argument to %s() can't be empty", name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700133 goto done;
134 }
135
Stephen Smalley779701d2012-02-09 14:13:23 -0500136 char *secontext = NULL;
137
138 if (sehandle) {
139 selabel_lookup(sehandle, &secontext, mount_point, 0755);
140 setfscreatecon(secontext);
141 }
Stephen Smalley779701d2012-02-09 14:13:23 -0500142
Doug Zongker9931f7f2009-06-10 14:11:53 -0700143 mkdir(mount_point, 0755);
144
Stephen Smalley779701d2012-02-09 14:13:23 -0500145 if (secontext) {
146 freecon(secontext);
147 setfscreatecon(NULL);
148 }
Stephen Smalley779701d2012-02-09 14:13:23 -0500149
Doug Zongker3d177d02010-07-01 09:18:44 -0700150 if (strcmp(partition_type, "MTD") == 0) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700151 mtd_scan_partitions();
152 const MtdPartition* mtd;
153 mtd = mtd_find_partition_by_name(location);
154 if (mtd == NULL) {
Michael Runge5ddf4292014-10-24 14:14:41 -0700155 uiPrintf(state, "%s: no mtd partition named \"%s\"",
Doug Zongker9931f7f2009-06-10 14:11:53 -0700156 name, location);
157 result = strdup("");
158 goto done;
159 }
Doug Zongker3d177d02010-07-01 09:18:44 -0700160 if (mtd_mount_partition(mtd, mount_point, fs_type, 0 /* rw */) != 0) {
Michael Runge5ddf4292014-10-24 14:14:41 -0700161 uiPrintf(state, "mtd mount of %s failed: %s\n",
Doug Zongker9931f7f2009-06-10 14:11:53 -0700162 location, strerror(errno));
163 result = strdup("");
164 goto done;
165 }
166 result = mount_point;
167 } else {
Doug Zongker3d177d02010-07-01 09:18:44 -0700168 if (mount(location, mount_point, fs_type,
Michael Runge168f7772014-10-22 17:05:08 -0700169 MS_NOATIME | MS_NODEV | MS_NODIRATIME,
170 has_mount_options ? mount_options : "") < 0) {
Michael Runge5ddf4292014-10-24 14:14:41 -0700171 uiPrintf(state, "%s: failed to mount %s at %s: %s\n",
Doug Zongker60babf82009-09-18 15:11:24 -0700172 name, location, mount_point, strerror(errno));
Doug Zongker9931f7f2009-06-10 14:11:53 -0700173 result = strdup("");
174 } else {
175 result = mount_point;
176 }
177 }
178
179done:
Doug Zongker3d177d02010-07-01 09:18:44 -0700180 free(fs_type);
181 free(partition_type);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700182 free(location);
183 if (result != mount_point) free(mount_point);
Michael Runge168f7772014-10-22 17:05:08 -0700184 if (has_mount_options) free(mount_options);
Doug Zongker512536a2010-02-17 16:11:44 -0800185 return StringValue(result);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700186}
187
Doug Zongker8edb00c2009-06-11 17:21:44 -0700188
189// is_mounted(mount_point)
Doug Zongker512536a2010-02-17 16:11:44 -0800190Value* IsMountedFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker8edb00c2009-06-11 17:21:44 -0700191 char* result = NULL;
192 if (argc != 1) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700193 return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700194 }
195 char* mount_point;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700196 if (ReadArgs(state, argv, 1, &mount_point) < 0) {
Doug Zongker8edb00c2009-06-11 17:21:44 -0700197 return NULL;
198 }
199 if (strlen(mount_point) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700200 ErrorAbort(state, "mount_point argument to unmount() can't be empty");
Doug Zongker8edb00c2009-06-11 17:21:44 -0700201 goto done;
202 }
203
204 scan_mounted_volumes();
205 const MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point);
206 if (vol == NULL) {
207 result = strdup("");
208 } else {
209 result = mount_point;
210 }
211
212done:
213 if (result != mount_point) free(mount_point);
Doug Zongker512536a2010-02-17 16:11:44 -0800214 return StringValue(result);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700215}
216
217
Doug Zongker512536a2010-02-17 16:11:44 -0800218Value* UnmountFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700219 char* result = NULL;
220 if (argc != 1) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700221 return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700222 }
223 char* mount_point;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700224 if (ReadArgs(state, argv, 1, &mount_point) < 0) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700225 return NULL;
226 }
227 if (strlen(mount_point) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700228 ErrorAbort(state, "mount_point argument to unmount() can't be empty");
Doug Zongker9931f7f2009-06-10 14:11:53 -0700229 goto done;
230 }
231
232 scan_mounted_volumes();
233 const MountedVolume* vol = find_mounted_volume_by_mount_point(mount_point);
234 if (vol == NULL) {
Michael Runge5ddf4292014-10-24 14:14:41 -0700235 uiPrintf(state, "unmount of %s failed; no such volume\n", mount_point);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700236 result = strdup("");
237 } else {
Michael Runge5ddf4292014-10-24 14:14:41 -0700238 int ret = unmount_mounted_volume(vol);
239 if (ret != 0) {
240 uiPrintf(state, "unmount of %s failed (%d): %s\n",
241 mount_point, ret, strerror(errno));
242 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700243 result = mount_point;
244 }
245
246done:
247 if (result != mount_point) free(mount_point);
Doug Zongker512536a2010-02-17 16:11:44 -0800248 return StringValue(result);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700249}
Doug Zongker8edb00c2009-06-11 17:21:44 -0700250
JP Abgrall37aedb32014-06-16 19:07:39 -0700251static int exec_cmd(const char* path, char* const argv[]) {
252 int status;
253 pid_t child;
254 if ((child = vfork()) == 0) {
255 execv(path, argv);
256 _exit(-1);
257 }
258 waitpid(child, &status, 0);
259 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
260 printf("%s failed with status %d\n", path, WEXITSTATUS(status));
261 }
262 return WEXITSTATUS(status);
263}
264
Doug Zongker8edb00c2009-06-11 17:21:44 -0700265
Stephen Smalley779701d2012-02-09 14:13:23 -0500266// format(fs_type, partition_type, location, fs_size, mount_point)
Doug Zongker9931f7f2009-06-10 14:11:53 -0700267//
Stephen Smalley779701d2012-02-09 14:13:23 -0500268// fs_type="yaffs2" partition_type="MTD" location=partition fs_size=<bytes> mount_point=<location>
269// fs_type="ext4" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
JP Abgrall37aedb32014-06-16 19:07:39 -0700270// fs_type="f2fs" partition_type="EMMC" location=device fs_size=<bytes> mount_point=<location>
271// if fs_size == 0, then make fs uses the entire partition.
Ken Sumrall8f132ed2011-01-14 18:55:05 -0800272// if fs_size > 0, that is the size to use
JP Abgrall37aedb32014-06-16 19:07:39 -0700273// 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 -0800274Value* FormatFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700275 char* result = NULL;
Stephen Smalley516e4e22012-04-03 13:35:11 -0400276 if (argc != 5) {
277 return ErrorAbort(state, "%s() expects 5 args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700278 }
Doug Zongker3d177d02010-07-01 09:18:44 -0700279 char* fs_type;
280 char* partition_type;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700281 char* location;
Ken Sumrall8f132ed2011-01-14 18:55:05 -0800282 char* fs_size;
Stephen Smalley516e4e22012-04-03 13:35:11 -0400283 char* mount_point;
Stephen Smalley779701d2012-02-09 14:13:23 -0500284
Stephen Smalley779701d2012-02-09 14:13:23 -0500285 if (ReadArgs(state, argv, 5, &fs_type, &partition_type, &location, &fs_size, &mount_point) < 0) {
286 return NULL;
287 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700288
Doug Zongker3d177d02010-07-01 09:18:44 -0700289 if (strlen(fs_type) == 0) {
290 ErrorAbort(state, "fs_type argument to %s() can't be empty", name);
291 goto done;
292 }
293 if (strlen(partition_type) == 0) {
294 ErrorAbort(state, "partition_type argument to %s() can't be empty",
295 name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700296 goto done;
297 }
298 if (strlen(location) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700299 ErrorAbort(state, "location argument to %s() can't be empty", name);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700300 goto done;
301 }
302
Stephen Smalley516e4e22012-04-03 13:35:11 -0400303 if (strlen(mount_point) == 0) {
Stephen Smalley779701d2012-02-09 14:13:23 -0500304 ErrorAbort(state, "mount_point argument to %s() can't be empty", name);
305 goto done;
306 }
Stephen Smalley779701d2012-02-09 14:13:23 -0500307
Doug Zongker3d177d02010-07-01 09:18:44 -0700308 if (strcmp(partition_type, "MTD") == 0) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700309 mtd_scan_partitions();
310 const MtdPartition* mtd = mtd_find_partition_by_name(location);
311 if (mtd == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700312 printf("%s: no mtd partition named \"%s\"",
Doug Zongker9931f7f2009-06-10 14:11:53 -0700313 name, location);
314 result = strdup("");
315 goto done;
316 }
317 MtdWriteContext* ctx = mtd_write_partition(mtd);
318 if (ctx == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700319 printf("%s: can't write \"%s\"", name, location);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700320 result = strdup("");
321 goto done;
322 }
323 if (mtd_erase_blocks(ctx, -1) == -1) {
324 mtd_write_close(ctx);
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700325 printf("%s: failed to erase \"%s\"", name, location);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700326 result = strdup("");
327 goto done;
328 }
329 if (mtd_write_close(ctx) != 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700330 printf("%s: failed to close \"%s\"", name, location);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700331 result = strdup("");
332 goto done;
333 }
334 result = location;
Doug Zongker3d177d02010-07-01 09:18:44 -0700335#ifdef USE_EXT4
336 } else if (strcmp(fs_type, "ext4") == 0) {
Stephen Smalley779701d2012-02-09 14:13:23 -0500337 int status = make_ext4fs(location, atoll(fs_size), mount_point, sehandle);
Doug Zongker3d177d02010-07-01 09:18:44 -0700338 if (status != 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700339 printf("%s: make_ext4fs failed (%d) on %s",
Doug Zongker3d177d02010-07-01 09:18:44 -0700340 name, status, location);
341 result = strdup("");
342 goto done;
343 }
344 result = location;
JP Abgrall37aedb32014-06-16 19:07:39 -0700345 } else if (strcmp(fs_type, "f2fs") == 0) {
346 char *num_sectors;
347 if (asprintf(&num_sectors, "%lld", atoll(fs_size) / 512) <= 0) {
348 printf("format_volume: failed to create %s command for %s\n", fs_type, location);
349 result = strdup("");
350 goto done;
351 }
352 const char *f2fs_path = "/sbin/mkfs.f2fs";
353 const char* const f2fs_argv[] = {"mkfs.f2fs", "-t", "-d1", location, num_sectors, NULL};
354 int status = exec_cmd(f2fs_path, (char* const*)f2fs_argv);
355 free(num_sectors);
356 if (status != 0) {
357 printf("%s: mkfs.f2fs failed (%d) on %s",
358 name, status, location);
359 result = strdup("");
360 goto done;
361 }
362 result = location;
Doug Zongker3d177d02010-07-01 09:18:44 -0700363#endif
Doug Zongker9931f7f2009-06-10 14:11:53 -0700364 } else {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700365 printf("%s: unsupported fs_type \"%s\" partition_type \"%s\"",
Doug Zongker3d177d02010-07-01 09:18:44 -0700366 name, fs_type, partition_type);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700367 }
368
369done:
Doug Zongker3d177d02010-07-01 09:18:44 -0700370 free(fs_type);
371 free(partition_type);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700372 if (result != location) free(location);
Doug Zongker512536a2010-02-17 16:11:44 -0800373 return StringValue(result);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700374}
375
Michael Rungece7ca712013-11-06 17:42:20 -0800376Value* RenameFn(const char* name, State* state, int argc, Expr* argv[]) {
377 char* result = NULL;
378 if (argc != 2) {
379 return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
380 }
381
382 char* src_name;
383 char* dst_name;
384
385 if (ReadArgs(state, argv, 2, &src_name, &dst_name) < 0) {
386 return NULL;
387 }
388 if (strlen(src_name) == 0) {
389 ErrorAbort(state, "src_name argument to %s() can't be empty", name);
390 goto done;
391 }
392 if (strlen(dst_name) == 0) {
Doug Zongker2b5f0e02014-08-06 08:25:03 -0700393 ErrorAbort(state, "dst_name argument to %s() can't be empty", name);
Michael Rungece7ca712013-11-06 17:42:20 -0800394 goto done;
395 }
Michael Rungea91ecc52014-07-21 17:40:02 -0700396 if (make_parents(dst_name) != 0) {
Doug Zongker2b5f0e02014-08-06 08:25:03 -0700397 ErrorAbort(state, "Creating parent of %s failed, error %s",
Michael Rungea91ecc52014-07-21 17:40:02 -0700398 dst_name, strerror(errno));
Michael Runge2f0ef732014-10-22 14:28:23 -0700399 } else if (access(dst_name, F_OK) == 0 && access(src_name, F_OK) != 0) {
400 // File was already moved
401 result = dst_name;
Michael Rungea91ecc52014-07-21 17:40:02 -0700402 } else if (rename(src_name, dst_name) != 0) {
Doug Zongker2b5f0e02014-08-06 08:25:03 -0700403 ErrorAbort(state, "Rename of %s to %s failed, error %s",
Michael Rungece7ca712013-11-06 17:42:20 -0800404 src_name, dst_name, strerror(errno));
405 } else {
406 result = dst_name;
407 }
408
409done:
410 free(src_name);
411 if (result != dst_name) free(dst_name);
412 return StringValue(result);
413}
Doug Zongker8edb00c2009-06-11 17:21:44 -0700414
Doug Zongker512536a2010-02-17 16:11:44 -0800415Value* DeleteFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700416 char** paths = malloc(argc * sizeof(char*));
417 int i;
418 for (i = 0; i < argc; ++i) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700419 paths[i] = Evaluate(state, argv[i]);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700420 if (paths[i] == NULL) {
421 int j;
422 for (j = 0; j < i; ++i) {
423 free(paths[j]);
424 }
425 free(paths);
426 return NULL;
427 }
428 }
429
430 bool recursive = (strcmp(name, "delete_recursive") == 0);
431
432 int success = 0;
433 for (i = 0; i < argc; ++i) {
434 if ((recursive ? dirUnlinkHierarchy(paths[i]) : unlink(paths[i])) == 0)
435 ++success;
436 free(paths[i]);
437 }
438 free(paths);
439
440 char buffer[10];
441 sprintf(buffer, "%d", success);
Doug Zongker512536a2010-02-17 16:11:44 -0800442 return StringValue(strdup(buffer));
Doug Zongker9931f7f2009-06-10 14:11:53 -0700443}
444
Doug Zongker8edb00c2009-06-11 17:21:44 -0700445
Doug Zongker512536a2010-02-17 16:11:44 -0800446Value* ShowProgressFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700447 if (argc != 2) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700448 return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700449 }
450 char* frac_str;
451 char* sec_str;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700452 if (ReadArgs(state, argv, 2, &frac_str, &sec_str) < 0) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700453 return NULL;
454 }
455
456 double frac = strtod(frac_str, NULL);
457 int sec = strtol(sec_str, NULL, 10);
458
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700459 UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700460 fprintf(ui->cmd_pipe, "progress %f %d\n", frac, sec);
461
Doug Zongker9931f7f2009-06-10 14:11:53 -0700462 free(sec_str);
Doug Zongker512536a2010-02-17 16:11:44 -0800463 return StringValue(frac_str);
Doug Zongkerfbf3c102009-06-24 09:36:20 -0700464}
465
Doug Zongker512536a2010-02-17 16:11:44 -0800466Value* SetProgressFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkerfbf3c102009-06-24 09:36:20 -0700467 if (argc != 1) {
468 return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
469 }
470 char* frac_str;
471 if (ReadArgs(state, argv, 1, &frac_str) < 0) {
472 return NULL;
473 }
474
475 double frac = strtod(frac_str, NULL);
476
477 UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
478 fprintf(ui->cmd_pipe, "set_progress %f\n", frac);
479
Doug Zongker512536a2010-02-17 16:11:44 -0800480 return StringValue(frac_str);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700481}
482
Doug Zongker8edb00c2009-06-11 17:21:44 -0700483// package_extract_dir(package_path, destination_path)
Doug Zongker512536a2010-02-17 16:11:44 -0800484Value* PackageExtractDirFn(const char* name, State* state,
Doug Zongker8edb00c2009-06-11 17:21:44 -0700485 int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700486 if (argc != 2) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700487 return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700488 }
489 char* zip_path;
490 char* dest_path;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700491 if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700492
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700493 ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700494
495 // To create a consistent system image, never use the clock for timestamps.
496 struct utimbuf timestamp = { 1217592000, 1217592000 }; // 8/1/2008 default
497
498 bool success = mzExtractRecursive(za, zip_path, dest_path,
499 MZ_EXTRACT_FILES_ONLY, &timestamp,
Stephen Smalley779701d2012-02-09 14:13:23 -0500500 NULL, NULL, sehandle);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700501 free(zip_path);
502 free(dest_path);
Doug Zongker512536a2010-02-17 16:11:44 -0800503 return StringValue(strdup(success ? "t" : ""));
Doug Zongker9931f7f2009-06-10 14:11:53 -0700504}
505
Doug Zongker8edb00c2009-06-11 17:21:44 -0700506
507// package_extract_file(package_path, destination_path)
Doug Zongker6aece332010-02-01 14:40:12 -0800508// or
509// package_extract_file(package_path)
510// to return the entire contents of the file as the result of this
Doug Zongker512536a2010-02-17 16:11:44 -0800511// function (the char* returned is actually a FileContents*).
512Value* PackageExtractFileFn(const char* name, State* state,
Doug Zongker8edb00c2009-06-11 17:21:44 -0700513 int argc, Expr* argv[]) {
Doug Zongker5f875bf2014-08-22 14:53:43 -0700514 if (argc < 1 || argc > 2) {
515 return ErrorAbort(state, "%s() expects 1 or 2 args, got %d",
Doug Zongker6aece332010-02-01 14:40:12 -0800516 name, argc);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700517 }
Doug Zongker8edb00c2009-06-11 17:21:44 -0700518 bool success = false;
Doug Zongker43772d22014-06-09 14:13:19 -0700519
520 UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
Doug Zongker43772d22014-06-09 14:13:19 -0700521
Doug Zongker5f875bf2014-08-22 14:53:43 -0700522 if (argc == 2) {
523 // The two-argument version extracts to a file.
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -0800524
525 ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
Doug Zongker8edb00c2009-06-11 17:21:44 -0700526
Doug Zongker6aece332010-02-01 14:40:12 -0800527 char* zip_path;
528 char* dest_path;
Doug Zongker5f875bf2014-08-22 14:53:43 -0700529 if (ReadArgs(state, argv, 2, &zip_path, &dest_path) < 0) return NULL;
Doug Zongker6aece332010-02-01 14:40:12 -0800530
Doug Zongker6aece332010-02-01 14:40:12 -0800531 const ZipEntry* entry = mzFindZipEntry(za, zip_path);
532 if (entry == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700533 printf("%s: no %s in package\n", name, zip_path);
Doug Zongker6aece332010-02-01 14:40:12 -0800534 goto done2;
535 }
536
537 FILE* f = fopen(dest_path, "wb");
538 if (f == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700539 printf("%s: can't open %s for write: %s\n",
Doug Zongker6aece332010-02-01 14:40:12 -0800540 name, dest_path, strerror(errno));
541 goto done2;
542 }
Doug Zongker5f875bf2014-08-22 14:53:43 -0700543 success = mzExtractZipEntryToFile(za, entry, fileno(f));
Doug Zongker6aece332010-02-01 14:40:12 -0800544 fclose(f);
545
546 done2:
547 free(zip_path);
548 free(dest_path);
Doug Zongker512536a2010-02-17 16:11:44 -0800549 return StringValue(strdup(success ? "t" : ""));
Doug Zongker6aece332010-02-01 14:40:12 -0800550 } else {
551 // The one-argument version returns the contents of the file
552 // as the result.
553
554 char* zip_path;
Doug Zongker512536a2010-02-17 16:11:44 -0800555 Value* v = malloc(sizeof(Value));
556 v->type = VAL_BLOB;
557 v->size = -1;
558 v->data = NULL;
Doug Zongker6aece332010-02-01 14:40:12 -0800559
560 if (ReadArgs(state, argv, 1, &zip_path) < 0) return NULL;
561
562 ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
563 const ZipEntry* entry = mzFindZipEntry(za, zip_path);
564 if (entry == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700565 printf("%s: no %s in package\n", name, zip_path);
Doug Zongker6aece332010-02-01 14:40:12 -0800566 goto done1;
567 }
568
Doug Zongker512536a2010-02-17 16:11:44 -0800569 v->size = mzGetZipEntryUncompLen(entry);
570 v->data = malloc(v->size);
571 if (v->data == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700572 printf("%s: failed to allocate %ld bytes for %s\n",
Doug Zongker512536a2010-02-17 16:11:44 -0800573 name, (long)v->size, zip_path);
Doug Zongker6aece332010-02-01 14:40:12 -0800574 goto done1;
575 }
576
Doug Zongker512536a2010-02-17 16:11:44 -0800577 success = mzExtractZipEntryToBuffer(za, entry,
578 (unsigned char *)v->data);
Doug Zongker6aece332010-02-01 14:40:12 -0800579
580 done1:
581 free(zip_path);
582 if (!success) {
Doug Zongker512536a2010-02-17 16:11:44 -0800583 free(v->data);
584 v->data = NULL;
585 v->size = -1;
Doug Zongker6aece332010-02-01 14:40:12 -0800586 }
Doug Zongker512536a2010-02-17 16:11:44 -0800587 return v;
Doug Zongker8edb00c2009-06-11 17:21:44 -0700588 }
Doug Zongker8edb00c2009-06-11 17:21:44 -0700589}
590
Doug Zongkera23075f2012-08-06 16:19:09 -0700591// Create all parent directories of name, if necessary.
592static int make_parents(char* name) {
593 char* p;
594 for (p = name + (strlen(name)-1); p > name; --p) {
595 if (*p != '/') continue;
596 *p = '\0';
597 if (make_parents(name) < 0) return -1;
598 int result = mkdir(name, 0700);
Michael Rungea91ecc52014-07-21 17:40:02 -0700599 if (result == 0) printf("created [%s]\n", name);
Doug Zongkera23075f2012-08-06 16:19:09 -0700600 *p = '/';
601 if (result == 0 || errno == EEXIST) {
602 // successfully created or already existed; we're done
603 return 0;
604 } else {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700605 printf("failed to mkdir %s: %s\n", name, strerror(errno));
Doug Zongkera23075f2012-08-06 16:19:09 -0700606 return -1;
607 }
608 }
609 return 0;
610}
Doug Zongker8edb00c2009-06-11 17:21:44 -0700611
Doug Zongker9931f7f2009-06-10 14:11:53 -0700612// symlink target src1 src2 ...
Doug Zongker60babf82009-09-18 15:11:24 -0700613// unlinks any previously existing src1, src2, etc before creating symlinks.
Doug Zongker512536a2010-02-17 16:11:44 -0800614Value* SymlinkFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker9931f7f2009-06-10 14:11:53 -0700615 if (argc == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700616 return ErrorAbort(state, "%s() expects 1+ args, got %d", name, argc);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700617 }
618 char* target;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700619 target = Evaluate(state, argv[0]);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700620 if (target == NULL) return NULL;
621
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700622 char** srcs = ReadVarArgs(state, argc-1, argv+1);
Doug Zongker9931f7f2009-06-10 14:11:53 -0700623 if (srcs == NULL) {
624 free(target);
625 return NULL;
626 }
627
Doug Zongkeracd73ed2012-03-22 14:32:52 -0700628 int bad = 0;
Doug Zongker9931f7f2009-06-10 14:11:53 -0700629 int i;
630 for (i = 0; i < argc-1; ++i) {
Doug Zongker60babf82009-09-18 15:11:24 -0700631 if (unlink(srcs[i]) < 0) {
632 if (errno != ENOENT) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700633 printf("%s: failed to remove %s: %s\n",
Doug Zongker60babf82009-09-18 15:11:24 -0700634 name, srcs[i], strerror(errno));
Doug Zongkeracd73ed2012-03-22 14:32:52 -0700635 ++bad;
Doug Zongker60babf82009-09-18 15:11:24 -0700636 }
637 }
Doug Zongkera23075f2012-08-06 16:19:09 -0700638 if (make_parents(srcs[i])) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700639 printf("%s: failed to symlink %s to %s: making parents failed\n",
Doug Zongkera23075f2012-08-06 16:19:09 -0700640 name, srcs[i], target);
641 ++bad;
642 }
Doug Zongker60babf82009-09-18 15:11:24 -0700643 if (symlink(target, srcs[i]) < 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -0700644 printf("%s: failed to symlink %s to %s: %s\n",
Doug Zongker60babf82009-09-18 15:11:24 -0700645 name, srcs[i], target, strerror(errno));
Doug Zongkeracd73ed2012-03-22 14:32:52 -0700646 ++bad;
Doug Zongker60babf82009-09-18 15:11:24 -0700647 }
Doug Zongker9931f7f2009-06-10 14:11:53 -0700648 free(srcs[i]);
649 }
650 free(srcs);
Doug Zongkeracd73ed2012-03-22 14:32:52 -0700651 if (bad) {
652 return ErrorAbort(state, "%s: some symlinks failed", name);
653 }
Doug Zongker512536a2010-02-17 16:11:44 -0800654 return StringValue(strdup(""));
Doug Zongker9931f7f2009-06-10 14:11:53 -0700655}
656
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700657struct perm_parsed_args {
658 bool has_uid;
659 uid_t uid;
660 bool has_gid;
661 gid_t gid;
662 bool has_mode;
663 mode_t mode;
664 bool has_fmode;
665 mode_t fmode;
666 bool has_dmode;
667 mode_t dmode;
668 bool has_selabel;
669 char* selabel;
670 bool has_capabilities;
671 uint64_t capabilities;
672};
673
Michael Runged4a63422014-10-22 19:48:41 -0700674static struct perm_parsed_args ParsePermArgs(State * state, int argc, char** args) {
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700675 int i;
676 struct perm_parsed_args parsed;
677 int bad = 0;
678 static int max_warnings = 20;
679
680 memset(&parsed, 0, sizeof(parsed));
681
682 for (i = 1; i < argc; i += 2) {
683 if (strcmp("uid", args[i]) == 0) {
684 int64_t uid;
685 if (sscanf(args[i+1], "%" SCNd64, &uid) == 1) {
686 parsed.uid = uid;
687 parsed.has_uid = true;
688 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700689 uiPrintf(state, "ParsePermArgs: invalid UID \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700690 bad++;
691 }
692 continue;
693 }
694 if (strcmp("gid", args[i]) == 0) {
695 int64_t gid;
696 if (sscanf(args[i+1], "%" SCNd64, &gid) == 1) {
697 parsed.gid = gid;
698 parsed.has_gid = true;
699 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700700 uiPrintf(state, "ParsePermArgs: invalid GID \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700701 bad++;
702 }
703 continue;
704 }
705 if (strcmp("mode", args[i]) == 0) {
706 int32_t mode;
707 if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) {
708 parsed.mode = mode;
709 parsed.has_mode = true;
710 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700711 uiPrintf(state, "ParsePermArgs: invalid mode \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700712 bad++;
713 }
714 continue;
715 }
716 if (strcmp("dmode", args[i]) == 0) {
717 int32_t mode;
718 if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) {
719 parsed.dmode = mode;
720 parsed.has_dmode = true;
721 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700722 uiPrintf(state, "ParsePermArgs: invalid dmode \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700723 bad++;
724 }
725 continue;
726 }
727 if (strcmp("fmode", args[i]) == 0) {
728 int32_t mode;
729 if (sscanf(args[i+1], "%" SCNi32, &mode) == 1) {
730 parsed.fmode = mode;
731 parsed.has_fmode = true;
732 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700733 uiPrintf(state, "ParsePermArgs: invalid fmode \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700734 bad++;
735 }
736 continue;
737 }
738 if (strcmp("capabilities", args[i]) == 0) {
739 int64_t capabilities;
740 if (sscanf(args[i+1], "%" SCNi64, &capabilities) == 1) {
741 parsed.capabilities = capabilities;
742 parsed.has_capabilities = true;
743 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700744 uiPrintf(state, "ParsePermArgs: invalid capabilities \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700745 bad++;
746 }
747 continue;
748 }
749 if (strcmp("selabel", args[i]) == 0) {
750 if (args[i+1][0] != '\0') {
751 parsed.selabel = args[i+1];
752 parsed.has_selabel = true;
753 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700754 uiPrintf(state, "ParsePermArgs: invalid selabel \"%s\"\n", args[i + 1]);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700755 bad++;
756 }
757 continue;
758 }
759 if (max_warnings != 0) {
760 printf("ParsedPermArgs: unknown key \"%s\", ignoring\n", args[i]);
761 max_warnings--;
762 if (max_warnings == 0) {
763 printf("ParsedPermArgs: suppressing further warnings\n");
764 }
765 }
766 }
767 return parsed;
768}
769
770static int ApplyParsedPerms(
Michael Runged4a63422014-10-22 19:48:41 -0700771 State * state,
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700772 const char* filename,
773 const struct stat *statptr,
774 struct perm_parsed_args parsed)
775{
776 int bad = 0;
777
Nick Kralevich68802412014-10-23 20:36:42 -0700778 if (parsed.has_selabel) {
779 if (lsetfilecon(filename, parsed.selabel) != 0) {
780 uiPrintf(state, "ApplyParsedPerms: lsetfilecon of %s to %s failed: %s\n",
781 filename, parsed.selabel, strerror(errno));
782 bad++;
783 }
784 }
785
Nick Kraleviche4612512013-09-10 15:34:19 -0700786 /* ignore symlinks */
787 if (S_ISLNK(statptr->st_mode)) {
Nick Kralevich68802412014-10-23 20:36:42 -0700788 return bad;
Nick Kraleviche4612512013-09-10 15:34:19 -0700789 }
790
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700791 if (parsed.has_uid) {
792 if (chown(filename, parsed.uid, -1) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700793 uiPrintf(state, "ApplyParsedPerms: chown of %s to %d failed: %s\n",
794 filename, parsed.uid, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700795 bad++;
796 }
797 }
798
799 if (parsed.has_gid) {
800 if (chown(filename, -1, parsed.gid) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700801 uiPrintf(state, "ApplyParsedPerms: chgrp of %s to %d failed: %s\n",
802 filename, parsed.gid, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700803 bad++;
804 }
805 }
806
807 if (parsed.has_mode) {
808 if (chmod(filename, parsed.mode) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700809 uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n",
810 filename, parsed.mode, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700811 bad++;
812 }
813 }
814
815 if (parsed.has_dmode && S_ISDIR(statptr->st_mode)) {
816 if (chmod(filename, parsed.dmode) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700817 uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n",
818 filename, parsed.dmode, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700819 bad++;
820 }
821 }
822
823 if (parsed.has_fmode && S_ISREG(statptr->st_mode)) {
824 if (chmod(filename, parsed.fmode) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700825 uiPrintf(state, "ApplyParsedPerms: chmod of %s to %d failed: %s\n",
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700826 filename, parsed.fmode, strerror(errno));
827 bad++;
828 }
829 }
830
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700831 if (parsed.has_capabilities && S_ISREG(statptr->st_mode)) {
832 if (parsed.capabilities == 0) {
833 if ((removexattr(filename, XATTR_NAME_CAPS) == -1) && (errno != ENODATA)) {
834 // Report failure unless it's ENODATA (attribute not set)
Michael Runged4a63422014-10-22 19:48:41 -0700835 uiPrintf(state, "ApplyParsedPerms: removexattr of %s to %" PRIx64 " failed: %s\n",
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700836 filename, parsed.capabilities, strerror(errno));
837 bad++;
838 }
839 } else {
840 struct vfs_cap_data cap_data;
841 memset(&cap_data, 0, sizeof(cap_data));
842 cap_data.magic_etc = VFS_CAP_REVISION | VFS_CAP_FLAGS_EFFECTIVE;
843 cap_data.data[0].permitted = (uint32_t) (parsed.capabilities & 0xffffffff);
844 cap_data.data[0].inheritable = 0;
845 cap_data.data[1].permitted = (uint32_t) (parsed.capabilities >> 32);
846 cap_data.data[1].inheritable = 0;
847 if (setxattr(filename, XATTR_NAME_CAPS, &cap_data, sizeof(cap_data), 0) < 0) {
Michael Runged4a63422014-10-22 19:48:41 -0700848 uiPrintf(state, "ApplyParsedPerms: setcap of %s to %" PRIx64 " failed: %s\n",
849 filename, parsed.capabilities, strerror(errno));
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700850 bad++;
851 }
852 }
853 }
854
855 return bad;
856}
857
858// nftw doesn't allow us to pass along context, so we need to use
859// global variables. *sigh*
860static struct perm_parsed_args recursive_parsed_args;
Michael Runged4a63422014-10-22 19:48:41 -0700861static State* recursive_state;
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700862
863static int do_SetMetadataRecursive(const char* filename, const struct stat *statptr,
864 int fileflags, struct FTW *pfwt) {
Michael Runged4a63422014-10-22 19:48:41 -0700865 return ApplyParsedPerms(recursive_state, filename, statptr, recursive_parsed_args);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700866}
867
868static Value* SetMetadataFn(const char* name, State* state, int argc, Expr* argv[]) {
869 int i;
870 int bad = 0;
871 static int nwarnings = 0;
872 struct stat sb;
873 Value* result = NULL;
874
875 bool recursive = (strcmp(name, "set_metadata_recursive") == 0);
876
877 if ((argc % 2) != 1) {
878 return ErrorAbort(state, "%s() expects an odd number of arguments, got %d",
879 name, argc);
880 }
881
882 char** args = ReadVarArgs(state, argc, argv);
883 if (args == NULL) return NULL;
884
885 if (lstat(args[0], &sb) == -1) {
886 result = ErrorAbort(state, "%s: Error on lstat of \"%s\": %s", name, args[0], strerror(errno));
887 goto done;
888 }
889
Michael Runged4a63422014-10-22 19:48:41 -0700890 struct perm_parsed_args parsed = ParsePermArgs(state, argc, args);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700891
892 if (recursive) {
893 recursive_parsed_args = parsed;
Michael Runged4a63422014-10-22 19:48:41 -0700894 recursive_state = state;
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700895 bad += nftw(args[0], do_SetMetadataRecursive, 30, FTW_CHDIR | FTW_DEPTH | FTW_PHYS);
896 memset(&recursive_parsed_args, 0, sizeof(recursive_parsed_args));
Michael Runged4a63422014-10-22 19:48:41 -0700897 recursive_state = NULL;
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700898 } else {
Michael Runged4a63422014-10-22 19:48:41 -0700899 bad += ApplyParsedPerms(state, args[0], &sb, parsed);
Nick Kralevich5dbdef02013-09-07 14:41:06 -0700900 }
901
902done:
903 for (i = 0; i < argc; ++i) {
904 free(args[i]);
905 }
906 free(args);
907
908 if (result != NULL) {
909 return result;
910 }
911
912 if (bad > 0) {
913 return ErrorAbort(state, "%s: some changes failed", name);
914 }
915
916 return StringValue(strdup(""));
917}
Doug Zongker8edb00c2009-06-11 17:21:44 -0700918
Doug Zongker512536a2010-02-17 16:11:44 -0800919Value* GetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker8edb00c2009-06-11 17:21:44 -0700920 if (argc != 1) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700921 return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700922 }
923 char* key;
Doug Zongkerd9c9d102009-06-12 12:24:39 -0700924 key = Evaluate(state, argv[0]);
Doug Zongker8edb00c2009-06-11 17:21:44 -0700925 if (key == NULL) return NULL;
926
927 char value[PROPERTY_VALUE_MAX];
928 property_get(key, value, "");
929 free(key);
930
Doug Zongker512536a2010-02-17 16:11:44 -0800931 return StringValue(strdup(value));
Doug Zongker8edb00c2009-06-11 17:21:44 -0700932}
933
934
Doug Zongker47cace92009-06-18 10:11:50 -0700935// file_getprop(file, key)
936//
937// interprets 'file' as a getprop-style file (key=value pairs, one
Michael Rungeaa1a31e2014-04-25 18:47:18 -0700938// per line. # comment lines,blank lines, lines without '=' ignored),
939// and returns the value for 'key' (or "" if it isn't defined).
Doug Zongker512536a2010-02-17 16:11:44 -0800940Value* FileGetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker47cace92009-06-18 10:11:50 -0700941 char* result = NULL;
942 char* buffer = NULL;
943 char* filename;
944 char* key;
945 if (ReadArgs(state, argv, 2, &filename, &key) < 0) {
946 return NULL;
947 }
948
949 struct stat st;
950 if (stat(filename, &st) < 0) {
951 ErrorAbort(state, "%s: failed to stat \"%s\": %s",
952 name, filename, strerror(errno));
953 goto done;
954 }
955
956#define MAX_FILE_GETPROP_SIZE 65536
957
958 if (st.st_size > MAX_FILE_GETPROP_SIZE) {
959 ErrorAbort(state, "%s too large for %s (max %d)",
960 filename, name, MAX_FILE_GETPROP_SIZE);
961 goto done;
962 }
963
964 buffer = malloc(st.st_size+1);
965 if (buffer == NULL) {
Mark Salyzynf3bb31c2014-03-14 09:39:48 -0700966 ErrorAbort(state, "%s: failed to alloc %lld bytes", name, (long long)st.st_size+1);
Doug Zongker47cace92009-06-18 10:11:50 -0700967 goto done;
968 }
969
970 FILE* f = fopen(filename, "rb");
971 if (f == NULL) {
972 ErrorAbort(state, "%s: failed to open %s: %s",
973 name, filename, strerror(errno));
974 goto done;
975 }
976
977 if (fread(buffer, 1, st.st_size, f) != st.st_size) {
Doug Zongkera23075f2012-08-06 16:19:09 -0700978 ErrorAbort(state, "%s: failed to read %lld bytes from %s",
Mark Salyzynf3bb31c2014-03-14 09:39:48 -0700979 name, (long long)st.st_size+1, filename);
Doug Zongker47cace92009-06-18 10:11:50 -0700980 fclose(f);
981 goto done;
982 }
983 buffer[st.st_size] = '\0';
984
985 fclose(f);
986
987 char* line = strtok(buffer, "\n");
988 do {
989 // skip whitespace at start of line
990 while (*line && isspace(*line)) ++line;
991
992 // comment or blank line: skip to next line
993 if (*line == '\0' || *line == '#') continue;
994
995 char* equal = strchr(line, '=');
996 if (equal == NULL) {
Michael Rungeaa1a31e2014-04-25 18:47:18 -0700997 continue;
Doug Zongker47cace92009-06-18 10:11:50 -0700998 }
999
1000 // trim whitespace between key and '='
1001 char* key_end = equal-1;
1002 while (key_end > line && isspace(*key_end)) --key_end;
1003 key_end[1] = '\0';
1004
1005 // not the key we're looking for
1006 if (strcmp(key, line) != 0) continue;
1007
1008 // skip whitespace after the '=' to the start of the value
1009 char* val_start = equal+1;
1010 while(*val_start && isspace(*val_start)) ++val_start;
1011
1012 // trim trailing whitespace
1013 char* val_end = val_start + strlen(val_start)-1;
1014 while (val_end > val_start && isspace(*val_end)) --val_end;
1015 val_end[1] = '\0';
1016
1017 result = strdup(val_start);
1018 break;
1019
1020 } while ((line = strtok(NULL, "\n")));
1021
1022 if (result == NULL) result = strdup("");
1023
1024 done:
1025 free(filename);
1026 free(key);
1027 free(buffer);
Doug Zongker512536a2010-02-17 16:11:44 -08001028 return StringValue(result);
Doug Zongker47cace92009-06-18 10:11:50 -07001029}
1030
1031
Doug Zongker8edb00c2009-06-11 17:21:44 -07001032static bool write_raw_image_cb(const unsigned char* data,
1033 int data_len, void* ctx) {
1034 int r = mtd_write_data((MtdWriteContext*)ctx, (const char *)data, data_len);
1035 if (r == data_len) return true;
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001036 printf("%s\n", strerror(errno));
Doug Zongker8edb00c2009-06-11 17:21:44 -07001037 return false;
1038}
1039
Doug Zongker179b2d92011-04-12 15:49:04 -07001040// write_raw_image(filename_or_blob, partition)
Doug Zongker512536a2010-02-17 16:11:44 -08001041Value* WriteRawImageFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongker8edb00c2009-06-11 17:21:44 -07001042 char* result = NULL;
1043
Doug Zongker179b2d92011-04-12 15:49:04 -07001044 Value* partition_value;
1045 Value* contents;
1046 if (ReadValueArgs(state, argv, 2, &contents, &partition_value) < 0) {
Doug Zongker8edb00c2009-06-11 17:21:44 -07001047 return NULL;
1048 }
1049
Doug Zongkerdaefc1d2011-10-31 09:34:15 -07001050 char* partition = NULL;
Doug Zongker179b2d92011-04-12 15:49:04 -07001051 if (partition_value->type != VAL_STRING) {
1052 ErrorAbort(state, "partition argument to %s must be string", name);
1053 goto done;
1054 }
Doug Zongkerdaefc1d2011-10-31 09:34:15 -07001055 partition = partition_value->data;
Doug Zongker8edb00c2009-06-11 17:21:44 -07001056 if (strlen(partition) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001057 ErrorAbort(state, "partition argument to %s can't be empty", name);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001058 goto done;
1059 }
Doug Zongker179b2d92011-04-12 15:49:04 -07001060 if (contents->type == VAL_STRING && strlen((char*) contents->data) == 0) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001061 ErrorAbort(state, "file argument to %s can't be empty", name);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001062 goto done;
1063 }
1064
1065 mtd_scan_partitions();
1066 const MtdPartition* mtd = mtd_find_partition_by_name(partition);
1067 if (mtd == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001068 printf("%s: no mtd partition named \"%s\"\n", name, partition);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001069 result = strdup("");
1070 goto done;
1071 }
1072
1073 MtdWriteContext* ctx = mtd_write_partition(mtd);
1074 if (ctx == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001075 printf("%s: can't write mtd partition \"%s\"\n",
Doug Zongker8edb00c2009-06-11 17:21:44 -07001076 name, partition);
1077 result = strdup("");
1078 goto done;
1079 }
1080
1081 bool success;
1082
Doug Zongker179b2d92011-04-12 15:49:04 -07001083 if (contents->type == VAL_STRING) {
1084 // we're given a filename as the contents
1085 char* filename = contents->data;
1086 FILE* f = fopen(filename, "rb");
1087 if (f == NULL) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001088 printf("%s: can't open %s: %s\n",
Doug Zongker179b2d92011-04-12 15:49:04 -07001089 name, filename, strerror(errno));
1090 result = strdup("");
1091 goto done;
Doug Zongker8edb00c2009-06-11 17:21:44 -07001092 }
Doug Zongker179b2d92011-04-12 15:49:04 -07001093
1094 success = true;
1095 char* buffer = malloc(BUFSIZ);
1096 int read;
1097 while (success && (read = fread(buffer, 1, BUFSIZ, f)) > 0) {
1098 int wrote = mtd_write_data(ctx, buffer, read);
1099 success = success && (wrote == read);
1100 }
1101 free(buffer);
1102 fclose(f);
1103 } else {
1104 // we're given a blob as the contents
1105 ssize_t wrote = mtd_write_data(ctx, contents->data, contents->size);
1106 success = (wrote == contents->size);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001107 }
Doug Zongker179b2d92011-04-12 15:49:04 -07001108 if (!success) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001109 printf("mtd_write_data to %s failed: %s\n",
Doug Zongker179b2d92011-04-12 15:49:04 -07001110 partition, strerror(errno));
1111 }
Doug Zongker8edb00c2009-06-11 17:21:44 -07001112
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001113 if (mtd_erase_blocks(ctx, -1) == -1) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001114 printf("%s: error erasing blocks of %s\n", name, partition);
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001115 }
1116 if (mtd_write_close(ctx) != 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001117 printf("%s: error closing write of %s\n", name, partition);
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001118 }
1119
Doug Zongker179b2d92011-04-12 15:49:04 -07001120 printf("%s %s partition\n",
1121 success ? "wrote" : "failed to write", partition);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001122
1123 result = success ? partition : strdup("");
1124
1125done:
Doug Zongker179b2d92011-04-12 15:49:04 -07001126 if (result != partition) FreeValue(partition_value);
1127 FreeValue(contents);
Doug Zongker512536a2010-02-17 16:11:44 -08001128 return StringValue(result);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001129}
1130
Doug Zongker8edb00c2009-06-11 17:21:44 -07001131// apply_patch_space(bytes)
Doug Zongkerc4351c72010-02-22 14:46:32 -08001132Value* ApplyPatchSpaceFn(const char* name, State* state,
1133 int argc, Expr* argv[]) {
1134 char* bytes_str;
1135 if (ReadArgs(state, argv, 1, &bytes_str) < 0) {
1136 return NULL;
1137 }
1138
1139 char* endptr;
1140 size_t bytes = strtol(bytes_str, &endptr, 10);
1141 if (bytes == 0 && endptr == bytes_str) {
1142 ErrorAbort(state, "%s(): can't parse \"%s\" as byte count\n\n",
1143 name, bytes_str);
1144 free(bytes_str);
1145 return NULL;
1146 }
1147
1148 return StringValue(strdup(CacheSizeCheck(bytes) ? "" : "t"));
1149}
1150
Doug Zongker52b40362014-02-10 15:30:30 -08001151// apply_patch(file, size, init_sha1, tgt_sha1, patch)
1152
Doug Zongker512536a2010-02-17 16:11:44 -08001153Value* ApplyPatchFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkerc4351c72010-02-22 14:46:32 -08001154 if (argc < 6 || (argc % 2) == 1) {
1155 return ErrorAbort(state, "%s(): expected at least 6 args and an "
1156 "even number, got %d",
1157 name, argc);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001158 }
1159
Doug Zongkerc4351c72010-02-22 14:46:32 -08001160 char* source_filename;
1161 char* target_filename;
1162 char* target_sha1;
1163 char* target_size_str;
1164 if (ReadArgs(state, argv, 4, &source_filename, &target_filename,
1165 &target_sha1, &target_size_str) < 0) {
1166 return NULL;
Doug Zongker8edb00c2009-06-11 17:21:44 -07001167 }
Doug Zongker8edb00c2009-06-11 17:21:44 -07001168
Doug Zongkerc4351c72010-02-22 14:46:32 -08001169 char* endptr;
1170 size_t target_size = strtol(target_size_str, &endptr, 10);
1171 if (target_size == 0 && endptr == target_size_str) {
1172 ErrorAbort(state, "%s(): can't parse \"%s\" as byte count",
1173 name, target_size_str);
1174 free(source_filename);
1175 free(target_filename);
1176 free(target_sha1);
1177 free(target_size_str);
1178 return NULL;
1179 }
1180
1181 int patchcount = (argc-4) / 2;
1182 Value** patches = ReadValueVarArgs(state, argc-4, argv+4);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001183
1184 int i;
Doug Zongkerc4351c72010-02-22 14:46:32 -08001185 for (i = 0; i < patchcount; ++i) {
1186 if (patches[i*2]->type != VAL_STRING) {
1187 ErrorAbort(state, "%s(): sha-1 #%d is not string", name, i);
1188 break;
1189 }
1190 if (patches[i*2+1]->type != VAL_BLOB) {
1191 ErrorAbort(state, "%s(): patch #%d is not blob", name, i);
1192 break;
1193 }
Doug Zongker8edb00c2009-06-11 17:21:44 -07001194 }
Doug Zongkerc4351c72010-02-22 14:46:32 -08001195 if (i != patchcount) {
1196 for (i = 0; i < patchcount*2; ++i) {
1197 FreeValue(patches[i]);
1198 }
1199 free(patches);
1200 return NULL;
1201 }
Doug Zongker8edb00c2009-06-11 17:21:44 -07001202
Doug Zongkerc4351c72010-02-22 14:46:32 -08001203 char** patch_sha_str = malloc(patchcount * sizeof(char*));
1204 for (i = 0; i < patchcount; ++i) {
1205 patch_sha_str[i] = patches[i*2]->data;
1206 patches[i*2]->data = NULL;
1207 FreeValue(patches[i*2]);
1208 patches[i] = patches[i*2+1];
Doug Zongker8edb00c2009-06-11 17:21:44 -07001209 }
Doug Zongkerc4351c72010-02-22 14:46:32 -08001210
1211 int result = applypatch(source_filename, target_filename,
1212 target_sha1, target_size,
Doug Zongkera3ccba62012-08-20 15:28:02 -07001213 patchcount, patch_sha_str, patches, NULL);
Doug Zongkerc4351c72010-02-22 14:46:32 -08001214
1215 for (i = 0; i < patchcount; ++i) {
1216 FreeValue(patches[i]);
1217 }
1218 free(patch_sha_str);
1219 free(patches);
1220
1221 return StringValue(strdup(result == 0 ? "t" : ""));
1222}
1223
1224// apply_patch_check(file, [sha1_1, ...])
1225Value* ApplyPatchCheckFn(const char* name, State* state,
1226 int argc, Expr* argv[]) {
1227 if (argc < 1) {
1228 return ErrorAbort(state, "%s(): expected at least 1 arg, got %d",
1229 name, argc);
1230 }
1231
1232 char* filename;
1233 if (ReadArgs(state, argv, 1, &filename) < 0) {
1234 return NULL;
1235 }
1236
1237 int patchcount = argc-1;
1238 char** sha1s = ReadVarArgs(state, argc-1, argv+1);
1239
1240 int result = applypatch_check(filename, patchcount, sha1s);
1241
1242 int i;
1243 for (i = 0; i < patchcount; ++i) {
1244 free(sha1s[i]);
1245 }
1246 free(sha1s);
1247
1248 return StringValue(strdup(result == 0 ? "t" : ""));
Doug Zongker8edb00c2009-06-11 17:21:44 -07001249}
1250
Doug Zongker512536a2010-02-17 16:11:44 -08001251Value* UIPrintFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001252 char** args = ReadVarArgs(state, argc, argv);
1253 if (args == NULL) {
1254 return NULL;
1255 }
1256
1257 int size = 0;
1258 int i;
1259 for (i = 0; i < argc; ++i) {
1260 size += strlen(args[i]);
1261 }
1262 char* buffer = malloc(size+1);
1263 size = 0;
1264 for (i = 0; i < argc; ++i) {
1265 strcpy(buffer+size, args[i]);
1266 size += strlen(args[i]);
1267 free(args[i]);
1268 }
1269 free(args);
1270 buffer[size] = '\0';
Michael Runged4a63422014-10-22 19:48:41 -07001271 uiPrint(state, buffer);
Doug Zongker512536a2010-02-17 16:11:44 -08001272 return StringValue(buffer);
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001273}
1274
Doug Zongkerd0181b82011-10-19 10:51:12 -07001275Value* WipeCacheFn(const char* name, State* state, int argc, Expr* argv[]) {
1276 if (argc != 0) {
1277 return ErrorAbort(state, "%s() expects no args, got %d", name, argc);
1278 }
1279 fprintf(((UpdaterInfo*)(state->cookie))->cmd_pipe, "wipe_cache\n");
1280 return StringValue(strdup("t"));
1281}
1282
Doug Zongker512536a2010-02-17 16:11:44 -08001283Value* RunProgramFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001284 if (argc < 1) {
1285 return ErrorAbort(state, "%s() expects at least 1 arg", name);
1286 }
1287 char** args = ReadVarArgs(state, argc, argv);
1288 if (args == NULL) {
1289 return NULL;
1290 }
1291
1292 char** args2 = malloc(sizeof(char*) * (argc+1));
1293 memcpy(args2, args, sizeof(char*) * argc);
1294 args2[argc] = NULL;
1295
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001296 printf("about to run program [%s] with %d args\n", args2[0], argc);
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001297
1298 pid_t child = fork();
1299 if (child == 0) {
1300 execv(args2[0], args2);
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001301 printf("run_program: execv failed: %s\n", strerror(errno));
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001302 _exit(1);
1303 }
1304 int status;
1305 waitpid(child, &status, 0);
1306 if (WIFEXITED(status)) {
1307 if (WEXITSTATUS(status) != 0) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001308 printf("run_program: child exited with status %d\n",
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001309 WEXITSTATUS(status));
1310 }
1311 } else if (WIFSIGNALED(status)) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001312 printf("run_program: child terminated by signal %d\n",
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001313 WTERMSIG(status));
1314 }
1315
1316 int i;
1317 for (i = 0; i < argc; ++i) {
1318 free(args[i]);
1319 }
1320 free(args);
1321 free(args2);
1322
1323 char buffer[20];
1324 sprintf(buffer, "%d", status);
1325
Doug Zongker512536a2010-02-17 16:11:44 -08001326 return StringValue(strdup(buffer));
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001327}
1328
Doug Zongker512536a2010-02-17 16:11:44 -08001329// sha1_check(data)
1330// to return the sha1 of the data (given in the format returned by
1331// read_file).
1332//
1333// sha1_check(data, sha1_hex, [sha1_hex, ...])
1334// returns the sha1 of the file if it matches any of the hex
1335// strings passed, or "" if it does not equal any of them.
1336//
1337Value* Sha1CheckFn(const char* name, State* state, int argc, Expr* argv[]) {
1338 if (argc < 1) {
1339 return ErrorAbort(state, "%s() expects at least 1 arg", name);
1340 }
1341
1342 Value** args = ReadValueVarArgs(state, argc, argv);
1343 if (args == NULL) {
1344 return NULL;
1345 }
1346
1347 if (args[0]->size < 0) {
Doug Zongker512536a2010-02-17 16:11:44 -08001348 return StringValue(strdup(""));
1349 }
1350 uint8_t digest[SHA_DIGEST_SIZE];
Doug Zongkerbac7fba2013-04-10 11:32:17 -07001351 SHA_hash(args[0]->data, args[0]->size, digest);
Doug Zongker512536a2010-02-17 16:11:44 -08001352 FreeValue(args[0]);
1353
1354 if (argc == 1) {
1355 return StringValue(PrintSha1(digest));
1356 }
1357
1358 int i;
1359 uint8_t* arg_digest = malloc(SHA_DIGEST_SIZE);
1360 for (i = 1; i < argc; ++i) {
1361 if (args[i]->type != VAL_STRING) {
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001362 printf("%s(): arg %d is not a string; skipping",
Doug Zongker512536a2010-02-17 16:11:44 -08001363 name, i);
1364 } else if (ParseSha1(args[i]->data, arg_digest) != 0) {
1365 // Warn about bad args and skip them.
Doug Zongkerfafc85b2013-07-09 12:29:45 -07001366 printf("%s(): error parsing \"%s\" as sha-1; skipping",
1367 name, args[i]->data);
Doug Zongker512536a2010-02-17 16:11:44 -08001368 } else if (memcmp(digest, arg_digest, SHA_DIGEST_SIZE) == 0) {
1369 break;
1370 }
1371 FreeValue(args[i]);
1372 }
1373 if (i >= argc) {
1374 // Didn't match any of the hex strings; return false.
1375 return StringValue(strdup(""));
1376 }
1377 // Found a match; free all the remaining arguments and return the
1378 // matched one.
1379 int j;
1380 for (j = i+1; j < argc; ++j) {
1381 FreeValue(args[j]);
1382 }
1383 return args[i];
1384}
1385
Hristo Bojinovdb314d62010-08-02 10:29:49 -07001386// Read a local file and return its contents (the Value* returned
Doug Zongker512536a2010-02-17 16:11:44 -08001387// is actually a FileContents*).
1388Value* ReadFileFn(const char* name, State* state, int argc, Expr* argv[]) {
1389 if (argc != 1) {
1390 return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
1391 }
1392 char* filename;
1393 if (ReadArgs(state, argv, 1, &filename) < 0) return NULL;
1394
1395 Value* v = malloc(sizeof(Value));
1396 v->type = VAL_BLOB;
1397
1398 FileContents fc;
Doug Zongkera1bc1482014-02-13 15:18:19 -08001399 if (LoadFileContents(filename, &fc) != 0) {
Doug Zongker512536a2010-02-17 16:11:44 -08001400 free(filename);
Michael Runge6eed2242013-12-13 17:13:11 -08001401 v->size = -1;
1402 v->data = NULL;
Doug Zongker512536a2010-02-17 16:11:44 -08001403 free(fc.data);
Michael Runge6eed2242013-12-13 17:13:11 -08001404 return v;
Doug Zongker512536a2010-02-17 16:11:44 -08001405 }
1406
1407 v->size = fc.size;
1408 v->data = (char*)fc.data;
1409
1410 free(filename);
1411 return v;
1412}
Doug Zongker8edb00c2009-06-11 17:21:44 -07001413
Doug Zongkerc87bab12013-11-25 13:53:25 -08001414// Immediately reboot the device. Recovery is not finished normally,
1415// so if you reboot into recovery it will re-start applying the
1416// current package (because nothing has cleared the copy of the
1417// arguments stored in the BCB).
1418//
1419// The argument is the partition name passed to the android reboot
1420// property. It can be "recovery" to boot from the recovery
1421// partition, or "" (empty string) to boot from the regular boot
1422// partition.
1423Value* RebootNowFn(const char* name, State* state, int argc, Expr* argv[]) {
1424 if (argc != 2) {
1425 return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
1426 }
1427
1428 char* filename;
1429 char* property;
1430 if (ReadArgs(state, argv, 2, &filename, &property) < 0) return NULL;
1431
1432 char buffer[80];
1433
1434 // zero out the 'command' field of the bootloader message.
1435 memset(buffer, 0, sizeof(((struct bootloader_message*)0)->command));
1436 FILE* f = fopen(filename, "r+b");
1437 fseek(f, offsetof(struct bootloader_message, command), SEEK_SET);
1438 fwrite(buffer, sizeof(((struct bootloader_message*)0)->command), 1, f);
1439 fclose(f);
1440 free(filename);
1441
1442 strcpy(buffer, "reboot,");
1443 if (property != NULL) {
1444 strncat(buffer, property, sizeof(buffer)-10);
1445 }
1446
1447 property_set(ANDROID_RB_PROPERTY, buffer);
1448
1449 sleep(5);
1450 free(property);
1451 ErrorAbort(state, "%s() failed to reboot", name);
1452 return NULL;
1453}
1454
1455// Store a string value somewhere that future invocations of recovery
1456// can access it. This value is called the "stage" and can be used to
1457// drive packages that need to do reboots in the middle of
1458// installation and keep track of where they are in the multi-stage
1459// install.
1460//
1461// The first argument is the block device for the misc partition
1462// ("/misc" in the fstab), which is where this value is stored. The
1463// second argument is the string to store; it should not exceed 31
1464// bytes.
1465Value* SetStageFn(const char* name, State* state, int argc, Expr* argv[]) {
1466 if (argc != 2) {
1467 return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
1468 }
1469
1470 char* filename;
1471 char* stagestr;
1472 if (ReadArgs(state, argv, 2, &filename, &stagestr) < 0) return NULL;
1473
1474 // Store this value in the misc partition, immediately after the
1475 // bootloader message that the main recovery uses to save its
1476 // arguments in case of the device restarting midway through
1477 // package installation.
1478 FILE* f = fopen(filename, "r+b");
1479 fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET);
1480 int to_write = strlen(stagestr)+1;
1481 int max_size = sizeof(((struct bootloader_message*)0)->stage);
1482 if (to_write > max_size) {
1483 to_write = max_size;
1484 stagestr[max_size-1] = 0;
1485 }
1486 fwrite(stagestr, to_write, 1, f);
1487 fclose(f);
1488
1489 free(stagestr);
1490 return StringValue(filename);
1491}
1492
1493// Return the value most recently saved with SetStageFn. The argument
1494// is the block device for the misc partition.
1495Value* GetStageFn(const char* name, State* state, int argc, Expr* argv[]) {
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -08001496 if (argc != 1) {
Doug Zongkerc87bab12013-11-25 13:53:25 -08001497 return ErrorAbort(state, "%s() expects 1 arg, got %d", name, argc);
1498 }
1499
1500 char* filename;
1501 if (ReadArgs(state, argv, 1, &filename) < 0) return NULL;
1502
1503 char buffer[sizeof(((struct bootloader_message*)0)->stage)];
1504 FILE* f = fopen(filename, "rb");
1505 fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET);
1506 fread(buffer, sizeof(buffer), 1, f);
1507 fclose(f);
1508 buffer[sizeof(buffer)-1] = '\0';
1509
1510 return StringValue(strdup(buffer));
1511}
1512
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -08001513Value* WipeBlockDeviceFn(const char* name, State* state, int argc, Expr* argv[]) {
1514 if (argc != 2) {
1515 return ErrorAbort(state, "%s() expects 2 args, got %d", name, argc);
1516 }
1517
1518 char* filename;
1519 char* len_str;
1520 if (ReadArgs(state, argv, 2, &filename, &len_str) < 0) return NULL;
1521
1522 size_t len = strtoull(len_str, NULL, 0);
1523 int fd = open(filename, O_WRONLY, 0644);
1524 int success = wipe_block_device(fd, len);
1525
1526 free(filename);
1527 free(len_str);
1528
1529 close(fd);
1530
1531 return StringValue(strdup(success ? "t" : ""));
1532}
1533
Doug Zongkerc704e062014-05-23 08:40:35 -07001534Value* EnableRebootFn(const char* name, State* state, int argc, Expr* argv[]) {
1535 if (argc != 0) {
1536 return ErrorAbort(state, "%s() expects no args, got %d", name, argc);
1537 }
1538 UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
1539 fprintf(ui->cmd_pipe, "enable_reboot\n");
1540 return StringValue(strdup("t"));
1541}
1542
Michael Rungeb278c252014-11-21 00:12:28 -08001543Value* Tune2FsFn(const char* name, State* state, int argc, Expr* argv[]) {
1544 if (argc == 0) {
1545 return ErrorAbort(state, "%s() expects args, got %d", name, argc);
1546 }
1547
1548 char** args = ReadVarArgs(state, argc, argv);
1549 if (args == NULL) {
1550 return ErrorAbort(state, "%s() could not read args", name);
1551 }
1552
1553 int i;
1554 char** args2 = malloc(sizeof(char*) * (argc+1));
1555 // Tune2fs expects the program name as its args[0]
1556 args2[0] = strdup(name);
1557 for (i = 0; i < argc; ++i) {
1558 args2[i + 1] = args[i];
1559 }
1560 int result = tune2fs_main(argc + 1, args2);
1561 for (i = 0; i < argc; ++i) {
1562 free(args[i]);
1563 }
1564 free(args);
1565
1566 free(args2[0]);
1567 free(args2);
1568 if (result != 0) {
1569 return ErrorAbort(state, "%s() returned error code %d", name, result);
1570 }
1571 return StringValue(strdup("t"));
1572}
1573
Doug Zongker9931f7f2009-06-10 14:11:53 -07001574void RegisterInstallFunctions() {
1575 RegisterFunction("mount", MountFn);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001576 RegisterFunction("is_mounted", IsMountedFn);
Doug Zongker9931f7f2009-06-10 14:11:53 -07001577 RegisterFunction("unmount", UnmountFn);
1578 RegisterFunction("format", FormatFn);
1579 RegisterFunction("show_progress", ShowProgressFn);
Doug Zongkerfbf3c102009-06-24 09:36:20 -07001580 RegisterFunction("set_progress", SetProgressFn);
Doug Zongker9931f7f2009-06-10 14:11:53 -07001581 RegisterFunction("delete", DeleteFn);
1582 RegisterFunction("delete_recursive", DeleteFn);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001583 RegisterFunction("package_extract_dir", PackageExtractDirFn);
1584 RegisterFunction("package_extract_file", PackageExtractFileFn);
Doug Zongker9931f7f2009-06-10 14:11:53 -07001585 RegisterFunction("symlink", SymlinkFn);
Nick Kralevich5dbdef02013-09-07 14:41:06 -07001586
Nick Kralevich5dbdef02013-09-07 14:41:06 -07001587 // Usage:
1588 // set_metadata("filename", "key1", "value1", "key2", "value2", ...)
1589 // Example:
1590 // set_metadata("/system/bin/netcfg", "uid", 0, "gid", 3003, "mode", 02750, "selabel", "u:object_r:system_file:s0", "capabilities", 0x0);
1591 RegisterFunction("set_metadata", SetMetadataFn);
1592
1593 // Usage:
1594 // set_metadata_recursive("dirname", "key1", "value1", "key2", "value2", ...)
1595 // Example:
1596 // set_metadata_recursive("/system", "uid", 0, "gid", 0, "fmode", 0644, "dmode", 0755, "selabel", "u:object_r:system_file:s0", "capabilities", 0x0);
1597 RegisterFunction("set_metadata_recursive", SetMetadataFn);
1598
Doug Zongker8edb00c2009-06-11 17:21:44 -07001599 RegisterFunction("getprop", GetPropFn);
Doug Zongker47cace92009-06-18 10:11:50 -07001600 RegisterFunction("file_getprop", FileGetPropFn);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001601 RegisterFunction("write_raw_image", WriteRawImageFn);
Doug Zongker8edb00c2009-06-11 17:21:44 -07001602
1603 RegisterFunction("apply_patch", ApplyPatchFn);
Doug Zongkerc4351c72010-02-22 14:46:32 -08001604 RegisterFunction("apply_patch_check", ApplyPatchCheckFn);
1605 RegisterFunction("apply_patch_space", ApplyPatchSpaceFn);
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001606
Doug Zongkerc9d6e4f2014-02-24 16:02:50 -08001607 RegisterFunction("wipe_block_device", WipeBlockDeviceFn);
Doug Zongker52b40362014-02-10 15:30:30 -08001608
Doug Zongker512536a2010-02-17 16:11:44 -08001609 RegisterFunction("read_file", ReadFileFn);
1610 RegisterFunction("sha1_check", Sha1CheckFn);
Michael Rungece7ca712013-11-06 17:42:20 -08001611 RegisterFunction("rename", RenameFn);
Doug Zongker512536a2010-02-17 16:11:44 -08001612
Doug Zongkerd0181b82011-10-19 10:51:12 -07001613 RegisterFunction("wipe_cache", WipeCacheFn);
1614
Doug Zongkerd9c9d102009-06-12 12:24:39 -07001615 RegisterFunction("ui_print", UIPrintFn);
Doug Zongkera3f89ea2009-09-10 14:10:48 -07001616
1617 RegisterFunction("run_program", RunProgramFn);
Doug Zongkerc87bab12013-11-25 13:53:25 -08001618
1619 RegisterFunction("reboot_now", RebootNowFn);
1620 RegisterFunction("get_stage", GetStageFn);
1621 RegisterFunction("set_stage", SetStageFn);
Doug Zongkerc704e062014-05-23 08:40:35 -07001622
1623 RegisterFunction("enable_reboot", EnableRebootFn);
Michael Rungeb278c252014-11-21 00:12:28 -08001624 RegisterFunction("tune2fs", Tune2FsFn);
Doug Zongker9931f7f2009-06-10 14:11:53 -07001625}