emo/thin-provisioning-tools
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

[thin/superblock (rust)] Unpack flags

Browse Source
This commit is contained in:
Joe Thornber 2020-08-13 13:46:07 +01:00
parent c254ebe384
commit b0e7520fbf
1 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/thin/superblock.rs
View File

@ -6,8 +6,14 @@ pub const SUPERBLOCK_LOCATION: u64 = 0;
//const UUID_SIZE: usize = 16; //const UUID_SIZE: usize = 16;
const SPACE_MAP_ROOT_SIZE: usize = 128; const SPACE_MAP_ROOT_SIZE: usize = 128;
#[derive(Debug)]
pub struct SuperblockFlags {
pub needs_check: bool,
}
#[derive(Debug)] #[derive(Debug)]
pub struct Superblock { pub struct Superblock {
pub flags: SuperblockFlags,
pub block: u64, pub block: u64,
//uuid: [u8; UUID_SIZE], //uuid: [u8; UUID_SIZE],
pub version: u32, pub version: u32,
@ -51,7 +57,7 @@ struct SuperblockError {
fn unpack(data: &[u8]) -> IResult<&[u8], Superblock> { fn unpack(data: &[u8]) -> IResult<&[u8], Superblock> {
let (i, _csum) = le_u32(data)?; let (i, _csum) = le_u32(data)?;
let (i, _flags) = le_u32(i)?; let (i, flags) = le_u32(i)?;
let (i, block) = le_u64(i)?; let (i, block) = le_u64(i)?;
let (i, _uuid) = take(16usize)(i)?; let (i, _uuid) = take(16usize)(i)?;
let (i, _magic) = le_u64(i)?; let (i, _magic) = le_u64(i)?;
@ -70,6 +76,7 @@ fn unpack(data: &[u8]) -> IResult<&[u8], Superblock> {
Ok(( Ok((
i, i,
Superblock { Superblock {
flags: SuperblockFlags {needs_check: (flags & 0x1) != 0},
block, block,
//uuid: uuid[0..UUID_SIZE], //uuid: uuid[0..UUID_SIZE],
version, version,