util-linux/fdisk_aix.c

   1 #if ENABLE_FEATURE_AIX_LABEL
   2 /*
   3  * Copyright (C) Andreas Neuper, Sep 1998.
   4  *      This file may be redistributed under
   5  *      the terms of the GNU Public License.
   6  */
   7
   8 typedef struct {
   9         unsigned int   magic;        /* expect AIX_LABEL_MAGIC */
  10         unsigned int   fillbytes1[124];
  11         unsigned int   physical_volume_id;
  12         unsigned int   fillbytes2[124];
  13 } aix_partition;
  14
  15 #define AIX_LABEL_MAGIC         0xc9c2d4c1
  16 #define AIX_LABEL_MAGIC_SWAPPED 0xc1d4c2c9
  17 #define AIX_INFO_MAGIC          0x00072959
  18 #define AIX_INFO_MAGIC_SWAPPED  0x59290700
  19
  20 #define aixlabel ((aix_partition *)MBRbuffer)
  21
  22
  23 /*
  24   Changes:
  25   * 1999-03-20 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
  26   *     Internationalization
  27   *
  28   * 2003-03-20 Phillip Kesling <pkesling@sgi.com>
  29   *      Some fixes
  30 */
  31
  32 static int aix_other_endian;
  33 static short aix_volumes = 1;
  34
  35 /*
  36  * only dealing with free blocks here
  37  */
  38
  39 static void
  40 aix_info(void)
  41 {
  42         puts("\n"
  43 "There is a valid AIX label on this disk.\n"
  44 "Unfortunately Linux cannot handle these disks at the moment.\n"
  45 "Nevertheless some advice:\n"
  46 "1. fdisk will destroy its contents on write.\n"
  47 "2. Be sure that this disk is NOT a still vital part of a volume group.\n"
  48 "   (Otherwise you may erase the other disks as well, if unmirrored.)\n"
  49 "3. Before deleting this physical volume be sure to remove the disk\n"
  50 "   logically from your AIX machine. (Otherwise you become an AIXpert).\n"
  51         );
  52 }
  53
  54 static int
  55 check_aix_label(void)
  56 {
  57         if (aixlabel->magic != AIX_LABEL_MAGIC &&
  58                 aixlabel->magic != AIX_LABEL_MAGIC_SWAPPED) {
  59                 current_label_type = 0;
  60                 aix_other_endian = 0;
  61                 return 0;
  62         }
  63         aix_other_endian = (aixlabel->magic == AIX_LABEL_MAGIC_SWAPPED);
  64         update_units();
  65         current_label_type = label_aix;
  66         partitions = 1016;
  67         aix_volumes = 15;
  68         aix_info();
  69         /*aix_nolabel();*/              /* %% */
  70         /*aix_label = 1;*/              /* %% */
  71         return 1;
  72 }
  73 #endif  /* AIX_LABEL */