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| author | Karel Zak | 2013-09-03 17:36:04 +0200 |
|---|---|---|
| committer | Karel Zak | 2013-09-16 16:47:10 +0200 |
| commit | 775001ad2bbf0532920a82564120430aef7ed077 (patch) | |
| tree | bec98028b65fce9c3239ce645e2f67648c047083 | |
| parent | libfdisk: add fdisk_locate_disklabel() (diff) | |
| download | kernel-qcow2-util-linux-775001ad2bbf0532920a82564120430aef7ed077.tar.gz kernel-qcow2-util-linux-775001ad2bbf0532920a82564120430aef7ed077.tar.xz kernel-qcow2-util-linux-775001ad2bbf0532920a82564120430aef7ed077.zip | |
libfdisk: (gpt) support for disklabel dump
Signed-off-by: Karel Zak <kzak@redhat.com>
| -rw-r--r-- | libfdisk/src/gpt.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/libfdisk/src/gpt.c b/libfdisk/src/gpt.c index c1c3a852c..d3fed63f6 100644 --- a/libfdisk/src/gpt.c +++ b/libfdisk/src/gpt.c @@ -768,6 +768,45 @@ invalid: return NULL; } + +static int gpt_locate_disklabel(struct fdisk_context *cxt, int n, + const char **name, off_t *offset, size_t *size) +{ + struct fdisk_gpt_label *gpt; + + assert(cxt); + + *name = NULL; + *offset = 0; + *size = 0; + + switch (n) { + case 0: + *name = "PMBR"; + *offset = 0; + *size = 512; + break; + case 1: + *name = _("GPT Header"); + *offset = GPT_PRIMARY_PARTITION_TABLE_LBA * cxt->sector_size; + *size = sizeof(struct gpt_header); + break; + case 2: + *name = _("GPT Entries"); + gpt = self_label(cxt); + *offset = le64_to_cpu(gpt->pheader->partition_entry_lba) * cxt->sector_size; + *size = le32_to_cpu(gpt->pheader->npartition_entries) * + le32_to_cpu(gpt->pheader->sizeof_partition_entry); + break; + default: + return 1; /* no more chunks */ + } + + return 0; +} + + + /* * Returns the number of partitions that are in use. */ @@ -2031,6 +2070,7 @@ static const struct fdisk_label_operations gpt_operations = .verify = gpt_verify_disklabel, .create = gpt_create_disklabel, .list = gpt_list_disklabel, + .locate = gpt_locate_disklabel, .get_id = gpt_get_disklabel_id, .set_id = gpt_set_disklabel_id, |