2 * Copyright (C) 2010 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
22 #if defined(__linux__)
24 #elif defined(__APPLE__) && defined(__MACH__)
29 #include <private/android_filesystem_config.h>
30 #include <private/canned_fs_config.h>
34 #include <selinux/selinux.h>
35 #include <selinux/label.h>
37 #include <selinux/android.h>
40 struct selabel_handle;
43 #include "make_ext4fs.h"
44 #include "ext4_utils.h"
46 #ifndef USE_MINGW /* O_BINARY is windows-specific flag */
50 extern struct fs_info info;
53 static void usage(char *path)
55 fprintf(stderr, "%s [ -l <len> ] [ -j <journal size> ] [ -b <block_size> ]\n", basename(path));
56 fprintf(stderr, " [ -g <blocks per group> ] [ -i <inodes> ] [ -I <inode size> ]\n");
57 fprintf(stderr, " [ -L <label> ] [ -f ] [ -a <android mountpoint> ] [ -u ]\n");
58 fprintf(stderr, " [ -S file_contexts ] [ -C fs_config ] [ -T timestamp ]\n");
59 fprintf(stderr, " [ -z | -s ] [ -w ] [ -c ] [ -J ] [ -v ] [ -B <block_list_file> ]\n");
60 fprintf(stderr, " [ -d <base_alloc_file_in> ] [ -D <base_alloc_file_out> ]\n");
61 fprintf(stderr, " <filename> [[<directory>] <target_out_directory>]\n");
64 int main(int argc, char **argv)
67 const char *filename = NULL;
68 const char *directory = NULL;
69 const char *target_out_directory = NULL;
70 char *mountpoint = NULL;
71 fs_config_func_t fs_config_func = NULL;
72 const char *fs_config_file = NULL;
81 time_t fixed_time = -1;
82 struct selabel_handle *sehnd = NULL;
83 FILE* block_list_file = NULL;
84 FILE* base_alloc_file_in = NULL;
85 FILE* base_alloc_file_out = NULL;
87 struct selinux_opt seopts[] = { { SELABEL_OPT_PATH, "" } };
90 while ((opt = getopt(argc, argv, "l:j:b:g:i:I:L:a:S:T:C:B:d:D:fwzJsctvu")) != -1) {
93 info.len = parse_num(optarg);
96 info.journal_blocks = parse_num(optarg);
99 info.block_size = parse_num(optarg);
102 info.blocks_per_group = parse_num(optarg);
105 info.inodes = parse_num(optarg);
108 info.inode_size = parse_num(optarg);
120 fprintf(stderr, "can't set android permissions - built without android support\n");
144 fprintf(stderr, "Warning: -t (initialize inode tables) is deprecated\n");
148 seopts[0].value = optarg;
149 sehnd = selabel_open(SELABEL_CTX_FILE, seopts, 1);
160 fixed_time = strtoll(optarg, NULL, 0);
163 fs_config_file = optarg;
166 block_list_file = fopen(optarg, "w");
167 if (block_list_file == NULL) {
168 fprintf(stderr, "failed to open block_list_file: %s\n", strerror(errno));
173 base_alloc_file_in = fopen(optarg, "r");
174 if (base_alloc_file_in == NULL) {
175 fprintf(stderr, "failed to open base_alloc_file_in: %s\n", strerror(errno));
180 base_alloc_file_out = fopen(optarg, "w");
181 if (base_alloc_file_out == NULL) {
182 fprintf(stderr, "failed to open base_alloc_file_out: %s\n", strerror(errno));
193 // Use only if -S option not requested
194 if (!sehnd && mountpoint) {
195 sehnd = selinux_android_file_context_handle();
204 if (fs_config_file) {
205 if (load_canned_fs_config(fs_config_file) < 0) {
206 fprintf(stderr, "failed to load %s\n", fs_config_file);
209 fs_config_func = canned_fs_config;
210 } else if (mountpoint) {
211 fs_config_func = fs_config;
214 if (wipe && sparse) {
215 fprintf(stderr, "Cannot specifiy both wipe and sparse\n");
221 fprintf(stderr, "Cannot specifiy both wipe and gzip\n");
226 if (optind >= argc) {
227 fprintf(stderr, "Expected filename after options\n");
232 filename = argv[optind++];
235 directory = argv[optind++];
238 target_out_directory = argv[optind++];
241 fprintf(stderr, "Unexpected argument: %s\n", argv[optind]);
246 if (strcmp(filename, "-")) {
247 fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
256 exitcode = make_ext4fs_internal(fd, directory, target_out_directory, mountpoint, fs_config_func, gzip,
257 sparse, crc, wipe, real_uuid, sehnd, verbose, fixed_time,
258 block_list_file, base_alloc_file_in, base_alloc_file_out);
261 fclose(block_list_file);
262 if (base_alloc_file_out)
263 fclose(base_alloc_file_out);
264 if (base_alloc_file_in)
265 fclose(base_alloc_file_in);
266 if (exitcode && strcmp(filename, "-"))