SingOS/lsfs_fuse
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Disk manager utility can now create hdd format

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Jørn Guldberg committed 2019-06-09 22:53:09 +02:00
1 parent 3264a78cdb
commit b172a091a7
1 file changed
+31 -17
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lsfs_disk_controller.h
+31 -17
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@@ -417,24 +417,46 @@ int create_file_system(char* disk_name, char* hdd_or_partition, uint64_t filesys
// Second and forward is the pointers to the master Tag Tables
// we need the first number to allocate memory at one go.
FSCI *fsci = calloc(1, sizeof(FSCI));
// Create disk on host system:
disk = fopen ( disk_name , "wb" );
ftruncate(fileno(disk), (filesystem_size_in_MB * 2048 * 512));
if (hdd_or_partition[0] == '1')
{
// This is the create hdd case
// This means that we setup the partition table.
;
Master_Boot_record *mbr = calloc(1, sizeof(Master_Boot_record));
mbr->partitions[0].partition_type = 0x18;
mbr->partitions[0].LBA_abs_first_sector = 2048;
mbr->partitions[0].number_of_sectors = filesystem_size_in_MB * 2048;
mbr->mbr_signature = 0xaa55;
write_data_to_disk(0, 1, mbr); // Write this to the first sector of the disk.
}
else if (hdd_or_partition[0] == '2')
if ((hdd_or_partition[0] == '1') || (hdd_or_partition[0] == '2'))
{
printf("HEY YUP\n");
// This is just a single partition
// And then the file system is the only thing in the system.
sprintf(fsci->filesystem_information, "LSFS v0.2.0-exp\n(LessSimpelFileSystem)(Generated by the disk_manager_utility.c)\nDeveloped to SingOS\nby Jorn Guldberg\n");
fsci->this_partition_offset_on_disk = SPACE_VBR_RECORD;
sprintf(fsci->filesystem_information, "LSFS v1.0.0-a1\n(LessSimpelFileSystem)(Generated by the disk_manager_utility.c)\nDeveloped to SingOS\nby Jorn Guldberg\n");
if (hdd_or_partition[0] == '1')
{
fsci->this_partition_offset_on_disk = SPACE_MBR_RECORD + SPACE_VBR_RECORD;
}
else
{
fsci->this_partition_offset_on_disk = SPACE_VBR_RECORD;
}
fsci->master_table_index = fsci->this_partition_offset_on_disk + SIZE_FSCI_RECORD;
fsci->next_free_sector = fsci->master_table_index + DEFAULT_TABLE_SIZE;
fsci->next_uniqe_id = 1;
fsci->next_sector_reuse_pointer = 0;
fsci->last_sector_index_on_partition = filesystem_size_in_MB * 2048; // Todo, this is the ssectors pr MB, this should not be hardcoded.
fsci->maximum_sectors_on_disk = 0; //TODO(Jørn) Not in use yet
fsci->maximum_sectors_on_disk = filesystem_size_in_MB * 2048; //TODO(Jørn) Not in use yet
fsci->sector_size_on_disk = SECTOR_SIZE;
}
else
@@ -443,16 +465,8 @@ int create_file_system(char* disk_name, char* hdd_or_partition, uint64_t filesys
assert(NULL);
}
// Create disk on host system:
disk = fopen ( disk_name , "wb" );
ftruncate(fileno(disk), SECTOR_SIZE * fsci->last_sector_index_on_partition);
write_data_to_disk(fsci->this_partition_offset_on_disk, 1, fsci);
char* zero_buffer = calloc(1, (DEFAULT_TABLE_SIZE * SECTOR_SIZE));
write_data_to_disk(fsci->master_table_index, DEFAULT_TABLE_SIZE, zero_buffer);
free(zero_buffer);
return 0;
}
@@ -488,13 +502,13 @@ int lsfs_disk_load_disk() {
printf("%d\n", mbr.partitions[i].LBA_abs_first_sector);
// First we find the File system control information.
fseek(disk , mbr.partitions[i].LBA_abs_first_sector * SECTOR_SIZE, SEEK_SET );
fseek(disk , ((mbr.partitions[i].LBA_abs_first_sector + SPACE_VBR_RECORD) * SECTOR_SIZE), SEEK_SET );
fread(&p_control.fsci, 1, SECTOR_SIZE , disk);
//printf("next free sector: %d\n", p_control.fsci.next_free_sector);
//printf("next free ID: %d\n", p_control.fsci.next_uniqe_id);
printf("next free sector: %d\n", p_control.fsci.next_free_sector);
printf("next free ID: %d\n", p_control.fsci.next_uniqe_id);
// next we find the Mater Table.
fseek (disk, p_control.fsci.master_table_index * SECTOR_SIZE, SEEK_SET );
fseek (disk, (p_control.fsci.master_table_index * SECTOR_SIZE), SEEK_SET );
fread(&p_control.master_table, 1, DEFAULT_TABLE_SIZE * SECTOR_SIZE , disk);
return 1;