static int notsane_gpt(const struct part_iter *iter)
{
const struct disk_gpt_part_entry *gp;
gp = (const struct disk_gpt_part_entry *)
(iter->data + iter->index0 * iter->sub.gpt.pe_size);
if (guid_is0(&gp->type))
return 0;
if (gp->lba_first < iter->sub.gpt.ufirst ||
gp->lba_last > iter->sub.gpt.ulast) {
error("Insane GPT partition.\n");
return -1;
}
return 0;
}
static int notsane_gpt(const struct part_iter *iter)
{
const struct disk_gpt_part_entry *gp;
gp = (const struct disk_gpt_part_entry *)
(iter->data + iter->index0 * iter->gpt.pe_size);
if (guid_is0(&gp->type))
return 0;
if (iter->flags & PIF_RELAX)
return 0;
if (gp->lba_first < iter->gpt.ufirst ||
gp->lba_last > iter->gpt.ulast) {
error("LBA sectors of GPT partition are beyond the range allowed in GPT header.");
return -1;
}
return 0;
}
static struct part_iter *pi_gpt_next(struct part_iter *iter)
{
const struct disk_gpt_part_entry *gpt_part = NULL;
if (iter->status)
goto bail;
while (++iter->index0 < iter->sub.gpt.pe_count) {
gpt_part = (const struct disk_gpt_part_entry *)
(iter->data + iter->index0 * iter->sub.gpt.pe_size);
if (notsane_gpt(iter)) {
iter->status = PI_INSANE;
goto bail;
}
if (!guid_is0(&gpt_part->type) || iter->stepall)
break;
}
/* no more partitions ? */
if (iter->index0 == iter->sub.gpt.pe_count) {
iter->status = PI_DONE;
goto bail;
}
/* gpt_part is guaranteed to be valid here */
iter->index = iter->index0 + 1;
iter->rawindex = iter->index0 + 1;
iter->start_lba = gpt_part->lba_first;
iter->length = gpt_part->lba_last - gpt_part->lba_first + 1;
iter->record = (char *)gpt_part;
memcpy(&iter->sub.gpt.part_guid, &gpt_part->uid, sizeof(struct guid));
gpt_conv_label(iter);
#ifdef DEBUG
disk_gpt_part_dump(gpt_part);
#endif
return iter;
bail:
return NULL;
}
