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src/backup/data_blob.rs: define const MAX_BLOB_SIZE

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This commit is contained in:
Dietmar Maurer
2019-08-09 11:49:06 +02:00
parent 9049a8cfe6
commit 781ac11c6a
1 changed files with 5 additions and 3 deletions
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8
src/backup/data_blob.rs
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@ -3,6 +3,8 @@ use std::convert::TryInto;
use proxmox::tools::io::{ReadExt, WriteExt}; use proxmox::tools::io::{ReadExt, WriteExt};
const MAX_BLOB_SIZE: usize = 128*1024*1024;
use super::*; use super::*;
/// Data blob binary storage format /// Data blob binary storage format
@ -69,7 +71,7 @@ impl DataBlob {
compress: bool, compress: bool,
) -> Result<Self, Error> { ) -> Result<Self, Error> {
if data.len() > 128*1024*1024 { if data.len() > MAX_BLOB_SIZE {
bail!("data blob too large ({} bytes).", data.len()); bail!("data blob too large ({} bytes).", data.len());
} }
@ -163,7 +165,7 @@ impl DataBlob {
return Ok(self.raw_data[data_start..].to_vec()); return Ok(self.raw_data[data_start..].to_vec());
} else if magic == &COMPRESSED_BLOB_MAGIC_1_0 { } else if magic == &COMPRESSED_BLOB_MAGIC_1_0 {
let data_start = std::mem::size_of::<DataBlobHeader>(); let data_start = std::mem::size_of::<DataBlobHeader>();
let data = zstd::block::decompress(&self.raw_data[data_start..], 16*1024*1024)?; let data = zstd::block::decompress(&self.raw_data[data_start..], MAX_BLOB_SIZE)?;
return Ok(data); return Ok(data);
} else if magic == &ENCR_COMPR_BLOB_MAGIC_1_0 || magic == &ENCRYPTED_BLOB_MAGIC_1_0 { } else if magic == &ENCR_COMPR_BLOB_MAGIC_1_0 || magic == &ENCRYPTED_BLOB_MAGIC_1_0 {
let header_len = std::mem::size_of::<EncryptedDataBlobHeader>(); let header_len = std::mem::size_of::<EncryptedDataBlobHeader>();
@ -215,7 +217,7 @@ impl DataBlob {
compress: bool, compress: bool,
) -> Result<Self, Error> { ) -> Result<Self, Error> {
if data.len() > 128*1024*1024 { if data.len() > MAX_BLOB_SIZE {
bail!("data blob too large ({} bytes).", data.len()); bail!("data blob too large ({} bytes).", data.len());
} }