diff options
Diffstat (limited to 'util-linux/volume_id/silicon_raid.c')
| -rw-r--r-- | util-linux/volume_id/silicon_raid.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/util-linux/volume_id/silicon_raid.c b/util-linux/volume_id/silicon_raid.c new file mode 100644 index 0000000..ea00174 --- /dev/null +++ b/util-linux/volume_id/silicon_raid.c @@ -0,0 +1,69 @@ +/* + * volume_id - reads filesystem label and uuid + * + * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "volume_id_internal.h" + +struct silicon_meta { + uint8_t unknown0[0x2E]; + uint8_t ascii_version[0x36 - 0x2E]; + uint8_t diskname[0x56 - 0x36]; + uint8_t unknown1[0x60 - 0x56]; + uint32_t magic; + uint32_t unknown1a[0x6C - 0x64]; + uint32_t array_sectors_low; + uint32_t array_sectors_high; + uint8_t unknown2[0x78 - 0x74]; + uint32_t thisdisk_sectors; + uint8_t unknown3[0x100 - 0x7C]; + uint8_t unknown4[0x104 - 0x100]; + uint16_t product_id; + uint16_t vendor_id; + uint16_t minor_ver; + uint16_t major_ver; +} __attribute__((packed)); + +#define SILICON_MAGIC 0x2F000000 + +int volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size) +{ + uint64_t meta_off; + struct silicon_meta *sil; + + dbg("probing at offset 0x%llx, size 0x%llx", + (unsigned long long) off, (unsigned long long) size); + + if (size < 0x10000) + return -1; + + meta_off = ((size / 0x200)-1) * 0x200; + sil = volume_id_get_buffer(id, off + meta_off, 0x200); + if (sil == NULL) + return -1; + + if (sil->magic != cpu_to_le32(SILICON_MAGIC)) + return -1; + + volume_id_set_usage(id, VOLUME_ID_RAID); + snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u", + le16_to_cpu(sil->major_ver), le16_to_cpu(sil->minor_ver)); + id->type = "silicon_medley_raid_member"; + + return 0; +} |