eessppeelllloo/cryptsetup
1
0
Fork 0
mirror of https://gitlab.com/cryptsetup/cryptsetup.git synced 2025-12-13 03:40:05 +01:00
Code Issues Packages Projects Releases Wiki Activity

Add ability to encrypt plain device.

Browse Source
This commit is contained in:
Milan Broz
2012-06-18 14:29:22 +02:00
parent 0894814148
commit b773823a1b
4 changed files with 195 additions and 54 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
lib/luks1/keymanage.c
View File

@@ -66,14 +66,22 @@ static uint64_t LUKS_device_sectors(size_t keyLen)
static int LUKS_check_device_size(struct crypt_device *ctx, const char *device,
size_t keyLength)
{
uint64_t dev_size;
uint64_t dev_sectors, hdr_sectors;
if(device_size(device, &dev_size)) {
if (!keyLength)
return -EINVAL;
if(device_size(device, &dev_sectors)) {
log_dbg("Cannot get device size for device %s.", device);
return -EIO;
}
if (LUKS_device_sectors(keyLength) > (dev_size >> SECTOR_SHIFT)) {
dev_sectors >>= SECTOR_SHIFT;
hdr_sectors = LUKS_device_sectors(keyLength);
log_dbg("Key length %u, device size %" PRIu64 " sectors, header size %"
PRIu64 " sectors.",keyLength, dev_sectors, hdr_sectors);
if (hdr_sectors > dev_sectors) {
log_err(ctx, _("Device %s is too small.\n"), device);
return -EINVAL;
}