sbin/newfs_hammer2/newfs_hammer2.c

   1 /*
   2  * Copyright (c) 2011-2015 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@dragonflybsd.org>
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #include <sys/types.h>
  36
  37 #include <stdio.h>
  38 #include <stdlib.h>
  39 #include <stddef.h>
  40 #include <unistd.h>
  41 #include <string.h>
  42 #include <err.h>
  43
  44 #include "mkfs_hammer2.h"
  45
  46 static void parse_fs_size(hammer2_mkfs_options_t *, const char *);
  47 static void usage(void);
  48
  49 int
  50 main(int ac, char **av)
  51 {
  52         hammer2_mkfs_options_t opt;
  53         int ch;
  54         int label_specified = 0;
  55
  56         /*
  57          * Initialize option structure.
  58          */
  59         hammer2_mkfs_init(&opt);
  60
  61         /*
  62          * Parse arguments.
  63          */
  64         while ((ch = getopt(ac, av, "L:b:r:V:s:d")) != -1) {
  65                 switch(ch) {
  66                 case 'b':
  67                         opt.BootAreaSize = getsize(optarg,
  68                                          HAMMER2_NEWFS_ALIGN,
  69                                          HAMMER2_BOOT_MAX_BYTES, 2);
  70                         break;
  71                 case 'r':
  72                         opt.AuxAreaSize = getsize(optarg,
  73                                          HAMMER2_NEWFS_ALIGN,
  74                                          HAMMER2_AUX_MAX_BYTES, 2);
  75                         break;
  76                 case 'V':
  77                         opt.Hammer2Version = strtol(optarg, NULL, 0);
  78                         if (opt.Hammer2Version < HAMMER2_VOL_VERSION_MIN ||
  79                             opt.Hammer2Version >= HAMMER2_VOL_VERSION_WIP) {
  80                                 errx(1, "I don't understand how to format "
  81                                      "HAMMER2 version %d",
  82                                      opt.Hammer2Version);
  83                         }
  84                         break;
  85                 case 'L':
  86                         label_specified = 1;
  87                         if (strcasecmp(optarg, "none") == 0) {
  88                                 break;
  89                         }
  90                         if (opt.NLabels >= MAXLABELS) {
  91                                 errx(1, "Limit of %d local labels",
  92                                      MAXLABELS - 1);
  93                         }
  94                         if (strlen(optarg) == 0) {
  95                                 errx(1, "Volume label '%s' cannot be 0-length",
  96                                         optarg);
  97                         }
  98                         if (strlen(optarg) >= HAMMER2_INODE_MAXNAME) {
  99                                 errx(1, "Volume label '%s' is too long "
 100                                         "(%d chars max)",
 101                                         optarg,
 102                                         HAMMER2_INODE_MAXNAME - 1);
 103                         }
 104                         opt.Label[opt.NLabels++] = strdup(optarg);
 105                         break;
 106                 case 's':
 107                         parse_fs_size(&opt, optarg);
 108                         break;
 109                 case 'd':
 110                         opt.DebugOpt = 1;
 111                         break;
 112                 default:
 113                         usage();
 114                         break;
 115                 }
 116         }
 117
 118         ac -= optind;
 119         av += optind;
 120
 121         if (ac == 0)
 122                 errx(1, "You must specify at least one disk device");
 123         if (ac > HAMMER2_MAX_VOLUMES)
 124                 errx(1, "The maximum number of volumes is %d",
 125                      HAMMER2_MAX_VOLUMES);
 126
 127         /*
 128          * Check default label type.
 129          */
 130         if (!label_specified) {
 131                 char c = av[0][strlen(av[0]) - 1];
 132                 if (c == 'a')
 133                         opt.DefaultLabelType = HAMMER2_LABEL_BOOT;
 134                 else if (c == 'd')
 135                         opt.DefaultLabelType = HAMMER2_LABEL_ROOT;
 136                 else
 137                         opt.DefaultLabelType = HAMMER2_LABEL_DATA;
 138         }
 139
 140         /*
 141          * Create Hammer2 filesystem.
 142          */
 143         hammer2_mkfs(ac, av, &opt);
 144
 145         /*
 146          * Cleanup option structure.
 147          */
 148         hammer2_mkfs_cleanup(&opt);
 149
 150         return(0);
 151 }
 152
 153 static
 154 void
 155 parse_fs_size(hammer2_mkfs_options_t *opt, const char *arg)
 156 {
 157         char *o, *p, *s;
 158
 159         opt->NFileSystemSizes = 0;
 160         o = p = strdup(arg);
 161
 162         while ((s = p) != NULL) {
 163                 if ((p = strchr(p, ':')) != NULL)
 164                         *p++ = 0;
 165                 /* XXX 0x7fffffffffffffff isn't limitation of HAMMER2 */
 166                 opt->FileSystemSize[opt->NFileSystemSizes++] = getsize(s,
 167                                  HAMMER2_FREEMAP_LEVEL1_SIZE,
 168                                  0x7fffffffffffffff, 2);
 169                 if (opt->NFileSystemSizes >= HAMMER2_MAX_VOLUMES)
 170                         break;
 171         }
 172         free(o);
 173 }
 174
 175 static
 176 void
 177 usage(void)
 178 {
 179         fprintf(stderr,
 180                 "usage: newfs_hammer2 [-b bootsize] [-r auxsize] "
 181                 "[-V version] [-L label ...] [-s size] special ...\n"
 182         );
 183         exit(1);
 184 }