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chunk readers: ensure chunk/index CryptMode matches

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an encrypted Index should never reference a plain-text chunk, and an
unencrypted Index should never reference an encrypted chunk.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
This commit is contained in:
Fabian Grünbichler
2020-08-10 13:25:07 +02:00
committed by Dietmar Maurer
parent 2d55beeca0
commit 14f6c9cb8b
8 changed files with 88 additions and 22 deletions
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14
src/bin/proxmox-backup-client.rs
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@ -1182,6 +1182,7 @@ fn complete_backup_source(arg: &str, param: &HashMap<String, String>) -> Vec<Str
async fn dump_image<W: Write>(
client: Arc<BackupReader>,
crypt_config: Option<Arc<CryptConfig>>,
crypt_mode: CryptMode,
index: FixedIndexReader,
mut writer: W,
verbose: bool,
@ -1189,7 +1190,7 @@ async fn dump_image<W: Write>(
let most_used = index.find_most_used_chunks(8);
let chunk_reader = RemoteChunkReader::new(client.clone(), crypt_config, most_used);
let chunk_reader = RemoteChunkReader::new(client.clone(), crypt_config, crypt_mode, most_used);
// Note: we avoid using BufferedFixedReader, because that add an additional buffer/copy
// and thus slows down reading. Instead, directly use RemoteChunkReader
@ -1340,7 +1341,12 @@ async fn restore(param: Value) -> Result<Value, Error> {
.map_err(|err| format_err!("unable to pipe data - {}", err))?;
}
} else if archive_type == ArchiveType::Blob {
return Ok(Value::Null);
}
let file_info = manifest.lookup_file_info(&archive_name)?;
if archive_type == ArchiveType::Blob {
let mut reader = client.download_blob(&manifest, &archive_name).await?;
@ -1365,7 +1371,7 @@ async fn restore(param: Value) -> Result<Value, Error> {
let most_used = index.find_most_used_chunks(8);
let chunk_reader = RemoteChunkReader::new(client.clone(), crypt_config, most_used);
let chunk_reader = RemoteChunkReader::new(client.clone(), crypt_config, file_info.chunk_crypt_mode(), most_used);
let mut reader = BufferedDynamicReader::new(index, chunk_reader);
@ -1412,7 +1418,7 @@ async fn restore(param: Value) -> Result<Value, Error> {
.map_err(|err| format_err!("unable to open /dev/stdout - {}", err))?
};
dump_image(client.clone(), crypt_config.clone(), index, &mut writer, verbose).await?;
dump_image(client.clone(), crypt_config.clone(), file_info.chunk_crypt_mode(), index, &mut writer, verbose).await?;
}
Ok(Value::Null)