release/src/router/mdadm/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 autof/*unused */)
  59 {
  60         int mdfd = open(dev, O_RDWR, 0);
  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 #endif
  73
  74 int rv;
  75 int mdfd = -1;
  76 int runstop = 0;
  77 int readonly = 0;
  78 int verbose = 0;
  79 int force = 0;
  80
  81 int main(int argc, char *argv[]) {
  82         mddev_ident_t array_list =  conf_get_ident(NULL);
  83         if (!array_list) {
  84                 fprintf(stderr, Name ": No arrays found in config file\n");
  85                 rv = 1;
  86         } else
  87                 for (; array_list; array_list = array_list->next) {
  88                         mdu_array_info_t array;
  89                         mdfd = open_mddev(array_list->devname, array_list->autof);
  90                         if (mdfd < 0) {
  91                                 rv |= 1;
  92                                 continue;
  93                         }
  94                         if (ioctl(mdfd, GET_ARRAY_INFO, &array) < 0) {
  95                                 rv |= Assemble(array_list->st, array_list->devname, mdfd,
  96                                            array_list, NULL, NULL,
  97                                            readonly, runstop, NULL, NULL, verbose, force);
  98                         } else {
  99                                 rv |= Manage_ro(array_list->devname, mdfd, -1); /* make it readwrite */
 100                         }
 101                         close(mdfd);
 102                 }
 103         return rv;
 104 }