static int probe_superblocks(blkid_probe pr)
{
struct stat st;
int rc;
if (fstat(blkid_probe_get_fd(pr), &st))
return -1;
blkid_probe_enable_partitions(pr, 1);
if (!S_ISCHR(st.st_mode) &&
blkid_probe_get_size(pr) <= 1024 * 1440 &&
blkid_probe_is_wholedisk(pr)) {
/*
* check if the small disk is partitioned, if yes then
* don't probe for filesystems.
*/
blkid_probe_enable_superblocks(pr, 0);
rc = blkid_do_fullprobe(pr);
if (rc < 0)
return rc; /* -1 = error, 1 = nothing, 0 = success */
if (blkid_probe_lookup_value(pr, "PTTYPE", NULL, NULL) == 0)
return 0; /* partition table detected */
}
blkid_probe_set_partitions_flags(pr, BLKID_PARTS_ENTRY_DETAILS);
blkid_probe_enable_superblocks(pr, 1);
return blkid_do_safeprobe(pr);
}
static int last_lba(blkid_probe pr, uint64_t *lba)
{
uint64_t sz = blkid_probe_get_size(pr);
unsigned int ssz = blkid_probe_get_sectorsize(pr);
if (sz < ssz)
return -1;
*lba = (sz / ssz) - 1ULL;
return 0;
}
u_int64_t zuluCryptGetVolumeSize( const char * device )
{
stringList_t stl = StringListVoid ;
StringListIterator it ;
StringListIterator end ;
string_t xt ;
const char * e ;
u_int64_t r = 0 ;
blkid_probe blkid = blkid_new_probe_from_filename( device ) ;
if( blkid == NULL ){
return 0 ;
}
e = NULL ;
blkid_do_probe( blkid ) ;
blkid_probe_lookup_value( blkid,"TYPE",&e,NULL ) ;
if( StringsAreNotEqual( e,"btrfs" ) ){
r = blkid_probe_get_size( blkid ) ;
blkid_free_probe( blkid ) ;
return r ;
}else{
/*
* we got a btrfs volume,this device could be one among a bunch of devices that makes the btfs volume.
* iterate through all known devices and add their sizes to this device if they are a part of the same
* btrfs volume.
*/
e = NULL ;
if( blkid_probe_lookup_value( blkid,"UUID",&e,NULL ) == 0 ){
xt = String( e ) ;
}else{
xt = StringVoid ;
}
blkid_free_probe( blkid ) ;
if( xt == StringVoid ){
return 0 ;
}else{
/*
* zuluCryptVolumeList() is defined in this source file
*/
stl = zuluCryptVolumeList() ;
zuluCryptSecurityGainElevatedPrivileges() ;
StringListGetIterators( stl,&it,&end ) ;
while( it != end ){
blkid = blkid_new_probe_from_filename( StringContent( *it ) ) ;
it++ ;
if( blkid != NULL ){
blkid_do_probe( blkid ) ;
e = NULL ;
if( blkid_probe_lookup_value( blkid,"UUID",&e,NULL ) == 0 ){
if( StringEqual( xt,e ) ){
r += blkid_probe_get_size( blkid ) ;
}
}
blkid_free_probe( blkid ) ;
}
}
StringDelete( &xt ) ;
StringListDelete( &stl ) ;
return r ;
}
}
}
int main(int argc, char *argv[])
{
int i, nparts;
char *devname;
blkid_probe pr;
blkid_partlist ls;
blkid_parttable root_tab;
if (argc < 2) {
fprintf(stderr, "usage: %s <device|file> "
"-- prints partitions\n",
program_invocation_short_name);
return EXIT_FAILURE;
}
devname = argv[1];
pr = blkid_new_probe_from_filename(devname);
if (!pr)
err(EXIT_FAILURE, "%s: faild to create a new libblkid probe",
devname);
/* Binary interface */
ls = blkid_probe_get_partitions(pr);
if (!ls)
errx(EXIT_FAILURE, "%s: failed to read partitions\n", devname);
/*
* Print info about the primary (root) partition table
*/
root_tab = blkid_partlist_get_table(ls);
if (!root_tab)
errx(EXIT_FAILURE, "%s: does not contains any "
"known partition table\n", devname);
printf("size: %jd, sector size: %u, PT: %s, offset: %jd\n---\n",
blkid_probe_get_size(pr),
blkid_probe_get_sectorsize(pr),
blkid_parttable_get_type(root_tab),
blkid_parttable_get_offset(root_tab));
/*
* List partitions
*/
nparts = blkid_partlist_numof_partitions(ls);
if (!nparts)
goto done;
for (i = 0; i < nparts; i++) {
const char *p;
blkid_partition par = blkid_partlist_get_partition(ls, i);
blkid_parttable tab = blkid_partition_get_table(par);
printf("#%d: %10llu %10llu 0x%x",
blkid_partition_get_partno(par),
(unsigned long long) blkid_partition_get_start(par),
(unsigned long long) blkid_partition_get_size(par),
blkid_partition_get_type(par));
if (root_tab != tab)
/* subpartition (BSD, Minix, ...) */
printf(" (%s)", blkid_parttable_get_type(tab));
p = blkid_partition_get_name(par);
if (p)
printf(" name='%s'", p);
p = blkid_partition_get_uuid(par);
if (p)
printf(" uuid='%s'", p);
p = blkid_partition_get_type_string(par);
if (p)
printf(" type='%s'", p);
putc('\n', stdout);
}
done:
blkid_free_probe(pr);
return EXIT_SUCCESS;
}
static int lowprobe_device(blkid_probe pr, const char *devname, char *show[],
int output, blkid_loff_t offset, blkid_loff_t size)
{
const char *data;
const char *name;
int nvals = 0, n, num = 1;
size_t len;
int fd;
int rc = 0;
struct stat st;
fd = open(devname, O_RDONLY);
if (fd < 0) {
fprintf(stderr, "error: %s: %s\n", devname, strerror(errno));
return 2;
}
if (blkid_probe_set_device(pr, fd, offset, size))
goto done;
if (fstat(fd, &st))
goto done;
/*
* partitions probing
*/
blkid_probe_enable_superblocks(pr, 0); /* enabled by default ;-( */
blkid_probe_enable_partitions(pr, 1);
rc = blkid_do_fullprobe(pr);
blkid_probe_enable_partitions(pr, 0);
if (rc < 0)
goto done; /* -1 = error, 1 = nothing, 0 = succes */
/*
* Don't probe for FS/RAIDs on small devices
*/
if (rc || S_ISCHR(st.st_mode) ||
blkid_probe_get_size(pr) > 1024 * 1440) {
/*
* filesystems/RAIDs probing
*/
blkid_probe_enable_superblocks(pr, 1);
rc = blkid_do_safeprobe(pr);
if (rc < 0)
goto done;
}
nvals = blkid_probe_numof_values(pr);
if (output & OUTPUT_DEVICE_ONLY) {
printf("%s\n", devname);
goto done;
}
for (n = 0; n < nvals; n++) {
if (blkid_probe_get_value(pr, n, &name, &data, &len))
continue;
if (show[0] && !has_item(show, name))
continue;
len = strnlen((char *) data, len);
print_value(output, num++, devname, (char *) data, name, len);
}
if (nvals >= 1 && !(output & (OUTPUT_VALUE_ONLY | OUTPUT_UDEV_LIST)))
printf("\n");
done:
if (rc == -2) {
if (output & OUTPUT_UDEV_LIST)
print_udev_ambivalent(pr);
else
fprintf(stderr,
"%s: ambivalent result (probably more "
"filesystems on the device, use wipefs(8) "
"to see more details)\n",
devname);
}
close(fd);
return !nvals ? 2 : 0;
}
