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>
33 #include <selinux/selinux.h>
34 #include <selinux/label.h>
35 #include <selinux/android.h>
37 struct selabel_handle;
40 #include "make_ext4fs.h"
41 #include "ext4_utils.h"
42 #include "canned_fs_config.h"
44 #ifndef USE_MINGW /* O_BINARY is windows-specific flag */
48 extern struct fs_info info;
51 static void usage(char *path)
53 fprintf(stderr, "%s [ -l <len> ] [ -j <journal size> ] [ -b <block_size> ]\n", basename(path));
54 fprintf(stderr, " [ -g <blocks per group> ] [ -i <inodes> ] [ -I <inode size> ]\n");
55 fprintf(stderr, " [ -L <label> ] [ -f ] [ -a <android mountpoint> ]\n");
56 fprintf(stderr, " [ -S file_contexts ] [ -C fs_config ] [ -T timestamp ]\n");
57 fprintf(stderr, " [ -z | -s ] [ -w ] [ -c ] [ -J ] [ -v ] [ -B <block_list_file> ]\n");
58 fprintf(stderr, " <filename> [<directory>]\n");
61 int main(int argc, char **argv)
64 const char *filename = NULL;
65 const char *directory = NULL;
66 char *mountpoint = NULL;
67 fs_config_func_t fs_config_func = NULL;
68 const char *fs_config_file = NULL;
76 time_t fixed_time = -1;
77 struct selabel_handle *sehnd = NULL;
78 FILE* block_list_file = NULL;
80 struct selinux_opt seopts[] = { { SELABEL_OPT_PATH, "" } };
83 while ((opt = getopt(argc, argv, "l:j:b:g:i:I:L:a:S:T:C:B:fwzJsctv")) != -1) {
86 info.len = parse_num(optarg);
89 info.journal_blocks = parse_num(optarg);
92 info.block_size = parse_num(optarg);
95 info.blocks_per_group = parse_num(optarg);
98 info.inodes = parse_num(optarg);
101 info.inode_size = parse_num(optarg);
113 fprintf(stderr, "can't set android permissions - built without android support\n");
134 fprintf(stderr, "Warning: -t (initialize inode tables) is deprecated\n");
138 seopts[0].value = optarg;
139 sehnd = selabel_open(SELABEL_CTX_FILE, seopts, 1);
150 fixed_time = strtoll(optarg, NULL, 0);
153 fs_config_file = optarg;
156 block_list_file = fopen(optarg, "w");
157 if (block_list_file == NULL) {
158 fprintf(stderr, "failed to open block_list_file: %s\n", strerror(errno));
169 // Use only if -S option not requested
170 if (!sehnd && mountpoint) {
171 sehnd = selinux_android_file_context_handle();
180 if (fs_config_file) {
181 if (load_canned_fs_config(fs_config_file) < 0) {
182 fprintf(stderr, "failed to load %s\n", fs_config_file);
185 fs_config_func = canned_fs_config;
186 } else if (mountpoint) {
187 fs_config_func = fs_config;
190 if (wipe && sparse) {
191 fprintf(stderr, "Cannot specifiy both wipe and sparse\n");
197 fprintf(stderr, "Cannot specifiy both wipe and gzip\n");
202 if (optind >= argc) {
203 fprintf(stderr, "Expected filename after options\n");
208 filename = argv[optind++];
211 directory = argv[optind++];
214 fprintf(stderr, "Unexpected argument: %s\n", argv[optind]);
219 if (strcmp(filename, "-")) {
220 fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
229 exitcode = make_ext4fs_internal(fd, directory, mountpoint, fs_config_func, gzip,
230 sparse, crc, wipe, sehnd, verbose, fixed_time, block_list_file);
233 fclose(block_list_file);
234 if (exitcode && strcmp(filename, "-"))