3
0

unused_isw_raid.c 1.9 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364
  1. /*
  2. * volume_id - reads filesystem label and uuid
  3. *
  4. * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
  5. *
  6. * This library is free software; you can redistribute it and/or
  7. * modify it under the terms of the GNU Lesser General Public
  8. * License as published by the Free Software Foundation; either
  9. * version 2.1 of the License, or (at your option) any later version.
  10. *
  11. * This library is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14. * Lesser General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU Lesser General Public
  17. * License along with this library; if not, write to the Free Software
  18. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19. */
  20. //config:### config FEATURE_VOLUMEID_ISWRAID
  21. //config:### bool "intel raid"
  22. //config:### default y
  23. //config:### depends on VOLUMEID
  24. //kbuild:### lib-$(CONFIG_FEATURE_VOLUMEID_ISWRAID) += isw_raid.o
  25. #include "volume_id_internal.h"
  26. struct isw_meta {
  27. uint8_t sig[32];
  28. uint32_t check_sum;
  29. uint32_t mpb_size;
  30. uint32_t family_num;
  31. uint32_t generation_num;
  32. } PACKED;
  33. #define ISW_SIGNATURE "Intel Raid ISM Cfg Sig. "
  34. int FAST_FUNC volume_id_probe_intel_software_raid(struct volume_id *id, uint64_t off, uint64_t size)
  35. {
  36. uint64_t meta_off;
  37. struct isw_meta *isw;
  38. dbg("probing at offset 0x%llx, size 0x%llx",
  39. (unsigned long long) off, (unsigned long long) size);
  40. if (size < 0x10000)
  41. return -1;
  42. meta_off = ((size / 0x200)-2) * 0x200;
  43. isw = volume_id_get_buffer(id, off + meta_off, 0x200);
  44. if (isw == NULL)
  45. return -1;
  46. if (memcmp(isw->sig, ISW_SIGNATURE, sizeof(ISW_SIGNATURE)-1) != 0)
  47. return -1;
  48. // volume_id_set_usage(id, VOLUME_ID_RAID);
  49. // memcpy(id->type_version, &isw->sig[sizeof(ISW_SIGNATURE)-1], 6);
  50. // id->type = "isw_raid_member";
  51. return 0;
  52. }