mdassemble.c

   1 /*
   2  * mdassemble - assemble Linux "md" devices aka RAID arrays.
   3  *
   4  * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
   5  * Copyright (C) 2003 Luca Berra <bluca@vodka.it>
   6  *
   7  *
   8  *    This program is free software; you can redistribute it and/or modify
   9  *    it under the terms of the GNU General Public License as published by
  10  *    the Free Software Foundation; either version 2 of the License, or
  11  *    (at your option) any later version.
  12  *
  13  *    This program is distributed in the hope that it will be useful,
  14  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *    GNU General Public License for more details.
  17  *
  18  *    You should have received a copy of the GNU General Public License
  19  *    along with this program; if not, write to the Free Software
  20  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  *    Author: Neil Brown
  23  *    Email: <neilb@cse.unsw.edu.au>
  24  *    Paper: Neil Brown
  25  *           School of Computer Science and Engineering
  26  *           The University of New South Wales
  27  *           Sydney, 2052
  28  *           Australia
  29  */
  30
  31 #include "mdadm.h"
  32 #include "md_p.h"
  33
  34 /* from readme.c */
  35 mapping_t pers[] = {
  36         { "linear", -1},
  37         { "raid0", 0},
  38         { "0", 0},
  39         { "stripe", 0},
  40         { "raid1", 1},
  41         { "1", 1},
  42         { "mirror", 1},
  43         { "raid4", 4},
  44         { "4", 4},
  45         { "raid5", 5},
  46         { "5", 5},
  47         { "multipath", -4},
  48         { "mp", -4},
  49         { "raid6", 6},
  50         { "6", 6},
  51         { "raid10", 10},
  52         { "10", 10},
  53         { NULL, 0}
  54 };
  55
  56 #ifndef MDASSEMBLE_AUTO
  57 /* from mdopen.c */
  58 int open_mddev(char *dev, int report_errors/*unused*/)
  59 {
  60         int mdfd = open(dev, O_RDWR);
  61         if (mdfd < 0)
  62                 fprintf(stderr, Name ": error opening %s: %s\n",
  63                         dev, strerror(errno));
  64         else if (md_get_version(mdfd) <= 0) {
  65                 fprintf(stderr, Name ": %s does not appear to be an md device\n",
  66                         dev);
  67                 close(mdfd);
  68                 mdfd = -1;
  69         }
  70         return mdfd;
  71 }
  72 int create_mddev(char *dev, char *name, int autof/*unused*/, int trustworthy,
  73                  char *chosen)
  74 {
  75         return open_mddev(dev, 0);
  76 }
  77 #endif
  78 int map_update(struct map_ent **mpp, int devnum, char *metadata,
  79                int *uuid, char *path)
  80 {
  81         return 0;
  82 }
  83 struct map_ent *map_by_name(struct map_ent **mpp, char *name)
  84 {
  85         return NULL;
  86 }
  87
  88 int rv;
  89 int mdfd = -1;
  90 int runstop = 0;
  91 int readonly = 0;
  92 int verbose = 0;
  93 int force = 0;
  94
  95 int main(int argc, char *argv[]) {
  96         mddev_ident_t array_list =  conf_get_ident(NULL);
  97         if (!array_list) {
  98                 fprintf(stderr, Name ": No arrays found in config file\n");
  99                 rv = 1;
 100         } else
 101                 for (; array_list; array_list = array_list->next) {
 102                         mdu_array_info_t array;
 103                         if (strcasecmp(array_list->devname, "<ignore>") == 0)
 104                                 continue;
 105                         mdfd = open_mddev(array_list->devname, 0);
 106                         if (mdfd >= 0 && ioctl(mdfd, GET_ARRAY_INFO, &array) == 0) {
 107                                 rv |= Manage_ro(array_list->devname, mdfd, -1); /* make it readwrite */
 108                                 continue;
 109                         }
 110                         if (mdfd >= 0)
 111                                 close(mdfd);
 112                         rv |= Assemble(array_list->st, array_list->devname,
 113                                        array_list, NULL, NULL,
 114                                        readonly, runstop, NULL, NULL, 0,
 115                                        verbose, force);
 116                 }
 117         return rv;
 118 }