1/**
2 * f2fs_format.c
3 *
4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 *             http://www.samsung.com/
6 *
7 * Dual licensed under the GPL or LGPL version 2 licenses.
8 */
9#define _LARGEFILE64_SOURCE
10
11#include <stdio.h>
12#include <stdlib.h>
13#include <fcntl.h>
14#include <string.h>
15#include <unistd.h>
16#include <sys/stat.h>
17#include <sys/mount.h>
18#include <time.h>
19//#include <linux/fs.h>
20#include <uuid/uuid.h>
21
22#include "f2fs_fs.h"
23#include "f2fs_format_utils.h"
24
25extern struct f2fs_configuration config;
26
27static void mkfs_usage()
28{
29	MSG(0, "\nUsage: mkfs.f2fs [options] device [sectors]\n");
30	MSG(0, "[options]:\n");
31	MSG(0, "  -a heap-based allocation [default:1]\n");
32	MSG(0, "  -d debug level [default:0]\n");
33	MSG(0, "  -e [extension list] e.g. \"mp3,gif,mov\"\n");
34	MSG(0, "  -l label\n");
35	MSG(0, "  -o overprovision ratio [default:5]\n");
36	MSG(0, "  -s # of segments per section [default:1]\n");
37	MSG(0, "  -z # of sections per zone [default:1]\n");
38	MSG(0, "  -t 0: nodiscard, 1: discard [default:1]\n");
39	MSG(0, "sectors: number of sectors. [default: determined by device size]\n");
40	exit(1);
41}
42
43static void f2fs_parse_options(int argc, char *argv[])
44{
45	static const char *option_string = "a:d:e:l:o:s:z:t:";
46	int32_t option=0;
47
48	while ((option = getopt(argc,argv,option_string)) != EOF) {
49		switch (option) {
50		case 'a':
51			config.heap = atoi(optarg);
52			if (config.heap == 0)
53				MSG(0, "Info: Disable heap-based policy\n");
54			break;
55		case 'd':
56			config.dbg_lv = atoi(optarg);
57			MSG(0, "Info: Debug level = %d\n", config.dbg_lv);
58			break;
59		case 'e':
60			config.extension_list = strdup(optarg);
61			MSG(0, "Info: Add new extension list\n");
62			break;
63		case 'l':		/*v: volume label */
64			if (strlen(optarg) > 512) {
65				MSG(0, "Error: Volume Label should be less than\
66						512 characters\n");
67				mkfs_usage();
68			}
69			config.vol_label = optarg;
70			MSG(0, "Info: Label = %s\n", config.vol_label);
71			break;
72		case 'o':
73			config.overprovision = atoi(optarg);
74			MSG(0, "Info: Overprovision ratio = %u%%\n",
75								atoi(optarg));
76			break;
77		case 's':
78			config.segs_per_sec = atoi(optarg);
79			MSG(0, "Info: Segments per section = %d\n",
80								atoi(optarg));
81			break;
82		case 'z':
83			config.secs_per_zone = atoi(optarg);
84			MSG(0, "Info: Sections per zone = %d\n", atoi(optarg));
85			break;
86		case 't':
87			config.trim = atoi(optarg);
88			MSG(0, "Info: Trim is %s\n", config.trim ? "enabled": "disabled");
89			break;
90		default:
91			MSG(0, "\tError: Unknown option %c\n",option);
92			mkfs_usage();
93			break;
94		}
95	}
96
97	if (optind >= argc) {
98		MSG(0, "\tError: Device not specified\n");
99		mkfs_usage();
100	}
101	config.device_name = argv[optind];
102
103	if ((optind + 1) < argc) {
104		/* We have a sector count. */
105		config.total_sectors = atoll(argv[optind+1]);
106		MSG(0, "\ttotal_sectors=%08"PRIx64" (%s bytes)\n",
107				config.total_sectors, argv[optind+1]);
108	}
109
110	config.reserved_segments  =
111			(2 * (100 / config.overprovision + 1) + 6)
112			* config.segs_per_sec;
113}
114
115int main(int argc, char *argv[])
116{
117	MSG(0, "\n\tF2FS-tools: mkfs.f2fs Ver: %s (%s)\n\n",
118				F2FS_TOOLS_VERSION,
119				F2FS_TOOLS_DATE);
120	f2fs_init_configuration(&config);
121
122	f2fs_parse_options(argc, argv);
123
124	if (f2fs_dev_is_umounted(&config) < 0)
125		return -1;
126
127	if (f2fs_get_device_info(&config) < 0)
128		return -1;
129
130	if (f2fs_format_device() < 0)
131		return -1;
132
133	f2fs_finalize_device(&config);
134
135	MSG(0, "Info: format successful\n");
136
137	return 0;
138}
139