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 <assert.h>
  43 #include <err.h>
  44
  45 #include "mkfs_hammer2.h"
  46
  47 static void parse_fs_size(hammer2_mkfs_options_t *, const char *);
  48 static void usage(void);
  49
  50 int
  51 main(int ac, char **av)
  52 {
  53         hammer2_mkfs_options_t opt;
  54         int ch;
  55         int label_specified = 0;
  56
  57         /*
  58          * Initialize option structure.
  59          */
  60         hammer2_mkfs_init(&opt);
  61
  62         /*
  63          * Parse arguments.
  64          */
  65         while ((ch = getopt(ac, av, "L:b:r:V:s:d")) != -1) {
  66                 switch(ch) {
  67                 case 'b':
  68                         opt.BootAreaSize = getsize(optarg,
  69                                          HAMMER2_NEWFS_ALIGN,
  70                                          HAMMER2_BOOT_MAX_BYTES, 2);
  71                         break;
  72                 case 'r':
  73                         opt.AuxAreaSize = getsize(optarg,
  74                                          HAMMER2_NEWFS_ALIGN,
  75                                          HAMMER2_AUX_MAX_BYTES, 2);
  76                         break;
  77                 case 'V':
  78                         opt.Hammer2Version = strtol(optarg, NULL, 0);
  79                         if (opt.Hammer2Version < HAMMER2_VOL_VERSION_MIN ||
  80                             opt.Hammer2Version >= HAMMER2_VOL_VERSION_WIP) {
  81                                 errx(1, "I don't understand how to format "
  82                                      "HAMMER2 version %d",
  83                                      opt.Hammer2Version);
  84                         }
  85                         break;
  86                 case 'L':
  87                         label_specified = 1;
  88                         if (strcasecmp(optarg, "none") == 0) {
  89                                 break;
  90                         }
  91                         if (opt.NLabels >= MAXLABELS) {
  92                                 errx(1, "Limit of %d local labels",
  93                                      MAXLABELS - 1);
  94                         }
  95                         if (strlen(optarg) == 0) {
  96                                 errx(1, "Volume label '%s' cannot be 0-length",
  97                                         optarg);
  98                         }
  99                         if (strlen(optarg) >= HAMMER2_INODE_MAXNAME) {
 100                                 errx(1, "Volume label '%s' is too long "
 101                                         "(%d chars max)",
 102                                         optarg,
 103                                         HAMMER2_INODE_MAXNAME - 1);
 104                         }
 105                         opt.Label[opt.NLabels++] = strdup(optarg);
 106                         break;
 107                 case 's':
 108                         parse_fs_size(&opt, optarg);
 109                         break;
 110                 case 'd':
 111                         opt.DebugOpt = 1;
 112                         break;
 113                 default:
 114                         usage();
 115                         break;
 116                 }
 117         }
 118
 119         ac -= optind;
 120         av += optind;
 121
 122         if (ac == 0)
 123                 errx(1, "You must specify at least one disk device");
 124         if (ac > HAMMER2_MAX_VOLUMES)
 125                 errx(1, "The maximum number of volumes is %d",
 126                      HAMMER2_MAX_VOLUMES);
 127
 128         /*
 129          * Check default label type.
 130          */
 131         if (!label_specified) {
 132                 char c = av[0][strlen(av[0]) - 1];
 133                 if (c == 'a')
 134                         opt.DefaultLabelType = HAMMER2_LABEL_BOOT;
 135                 else if (c == 'd')
 136                         opt.DefaultLabelType = HAMMER2_LABEL_ROOT;
 137                 else
 138                         opt.DefaultLabelType = HAMMER2_LABEL_DATA;
 139         }
 140
 141         /*
 142          * Create Hammer2 filesystem.
 143          */
 144         assert(opt.CompType == HAMMER2_COMP_DEFAULT);
 145         assert(opt.CheckType == HAMMER2_CHECK_DEFAULT);
 146         hammer2_mkfs(ac, av, &opt);
 147
 148         /*
 149          * Cleanup option structure.
 150          */
 151         hammer2_mkfs_cleanup(&opt);
 152
 153         return(0);
 154 }
 155
 156 static
 157 void
 158 parse_fs_size(hammer2_mkfs_options_t *opt, const char *arg)
 159 {
 160         char *o, *p, *s;
 161
 162         opt->NFileSystemSizes = 0;
 163         o = p = strdup(arg);
 164
 165         while ((s = p) != NULL) {
 166                 if ((p = strchr(p, ':')) != NULL)
 167                         *p++ = 0;
 168                 /* XXX 0x7fffffffffffffff isn't limitation of HAMMER2 */
 169                 opt->FileSystemSize[opt->NFileSystemSizes++] = getsize(s,
 170                                  HAMMER2_FREEMAP_LEVEL1_SIZE,
 171                                  0x7fffffffffffffff, 2);
 172                 if (opt->NFileSystemSizes >= HAMMER2_MAX_VOLUMES)
 173                         break;
 174         }
 175         free(o);
 176 }
 177
 178 static
 179 void
 180 usage(void)
 181 {
 182         fprintf(stderr,
 183                 "usage: newfs_hammer2 [-b bootsize] [-r auxsize] "
 184                 "[-V version] [-L label ...] [-s size] special ...\n"
 185         );
 186         exit(1);
 187 }