eessppeelllloo/cryptsetup
1
0
Fork 0
mirror of https://gitlab.com/cryptsetup/cryptsetup.git synced 2025-12-22 08:10:04 +01:00
Code Issues Packages Projects Releases Wiki Activity

Create smaller header device.

Browse Source
This commit is contained in:
Milan Broz
2012-06-15 15:03:09 +02:00
parent 768426ad99
commit 0cefe2d107
1 changed files with 12 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
src/crypt_reencrypt.c
View File

@@ -95,6 +95,7 @@ struct {
int keyslot;
struct timeval start_time, end_time;
uint64_t restart_bytest;
} rnc;
char MAGIC[] = {'L','U','K','S', 0xba, 0xbe};
@@ -259,11 +260,17 @@ out:
return r;
}
static int create_empty_header(const char *new_file, uint64_t size)
static int create_empty_header(const char *new_file, const char *old_file)
{
struct stat st;
size_t size;
int fd, r = 0;
char *buf;
if (stat(old_file, &st) == -1 || (st.st_mode & S_IFMT) != S_IFREG)
return -EINVAL;
size = st.st_size;
log_dbg("Creating empty file %s of size %lu.", new_file, (unsigned long)size);
if (!(buf = malloc(size)))
@@ -453,8 +460,7 @@ static int backup_luks_headers(void)
if ((r = crypt_header_backup(cd, CRYPT_LUKS1, rnc.header_file_org)))
goto out;
if ((r = create_empty_header(rnc.header_file_new,
crypt_get_data_offset(cd) * 512)))
if ((r = create_empty_header(rnc.header_file_new, rnc.header_file_org)))
goto out;
params.hash = opt_hash ?: DEFAULT_LUKS1_HASH;
@@ -527,7 +533,7 @@ static int restore_luks_header(const char *backup)
void print_progress(uint64_t bytes, int final)
{
uint64_t mbytes = bytes / 1024 / 1024;
uint64_t mbytes = (bytes - rnc.restart_bytest) / 1024 / 1024;
struct timeval now_time;
double tdiff;
@@ -556,7 +562,7 @@ static int copy_data_forward(int fd_old, int fd_new, size_t block_size, void *bu
{
ssize_t s1, s2;
*bytes = rnc.device_offset;
rnc.restart_bytest = *bytes = rnc.device_offset;
while (!quit && rnc.device_offset < rnc.device_size) {
s1 = read(fd_old, buf, block_size);
if (s1 < 0 || (s1 != block_size && (rnc.device_offset + s1) != rnc.device_size)) {
@@ -586,7 +592,7 @@ static int copy_data_backward(int fd_old, int fd_new, size_t block_size, void *b
ssize_t s1, s2, working_block;
off64_t working_offset;
*bytes = rnc.device_size - rnc.device_offset;
rnc.restart_bytest = *bytes = rnc.device_size - rnc.device_offset;
while (!quit && rnc.device_offset) {
if (rnc.device_offset < block_size) {
working_offset = 0;