tyler/proxmox-backup
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src/backup/*_index.rs: used generated magic numbers

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This commit is contained in:
Dietmar Maurer
2019-06-14 14:58:37 +02:00
parent bffd40d6b7
commit a7dd483097
3 changed files with 16 additions and 25 deletions
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15
src/backup/dynamic_index.rs
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@ -24,13 +24,12 @@ use super::{DataChunk, DataChunkBuilder};
#[repr(C)]
pub struct DynamicIndexHeader {
/// The string `PROXMOX-DIDX`
pub magic: [u8; 12],
pub version: u32,
pub magic: [u8; 8],
pub uuid: [u8; 16],
pub ctime: u64,
/// Sha256 over the index ``SHA256(offset1||digest1||offset2||digest2||...)``
pub index_csum: [u8; 32],
reserved: [u8; 4024], // overall size is one page (4096 bytes)
reserved: [u8; 4030], // overall size is one page (4096 bytes)
}
@ -80,15 +79,10 @@ impl DynamicIndexReader {
let header = unsafe { &* (buffer.as_ptr() as *const DynamicIndexHeader) };
if header.magic != *b"PROXMOX-DIDX" {
if header.magic != super::DYNAMIC_SIZED_CHUNK_INDEX_1_0 {
bail!("got unknown magic number for {:?}", path);
}
let version = u32::from_le(header.version);
if version != 1 {
bail!("got unsupported version number ({}) for {:?}", version, path);
}
let ctime = u64::from_le(header.ctime);
let rawfd = file.as_raw_fd();
@ -429,8 +423,7 @@ impl DynamicIndexWriter {
let mut buffer = vec::undefined(header_size);
let header = crate::tools::map_struct_mut::<DynamicIndexHeader>(&mut buffer)?;
header.magic = *b"PROXMOX-DIDX";
header.version = u32::to_le(1);
header.magic = super::DYNAMIC_SIZED_CHUNK_INDEX_1_0;
header.ctime = u64::to_le(ctime);
header.uuid = *uuid.as_bytes();