Validate the genesis config downloaded over RPC before accepting it
This commit is contained in:
parent
fbf78b83c4
commit
d5a7867087
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@ -80,39 +80,25 @@ fn new_spinner_progress_bar() -> ProgressBar {
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progress_bar
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}
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fn download_tar_bz2(
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rpc_addr: &SocketAddr,
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archive_name: &str,
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download_path: &Path,
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is_snapshot: bool,
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) -> Result<(), String> {
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let archive_path = download_path.join(archive_name);
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if archive_path.is_file() {
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return Ok(());
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fn download_file(url: &str, destination_file: &Path, not_found_ok: bool) -> Result<(), String> {
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if destination_file.is_file() {
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return Err(format!("{:?} already exists", destination_file));
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}
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fs::create_dir_all(download_path).map_err(|err| err.to_string())?;
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let temp_archive_path = {
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let mut p = archive_path.clone();
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p.set_extension(".tmp");
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p
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};
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let url = format!("http://{}/{}", rpc_addr, archive_name);
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let download_start = Instant::now();
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fs::create_dir_all(destination_file.parent().unwrap()).map_err(|err| err.to_string())?;
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let temp_destination_file = destination_file.with_extension(".tmp");
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let progress_bar = new_spinner_progress_bar();
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progress_bar.set_message(&format!("{}Downloading {}...", TRUCK, url));
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let client = reqwest::blocking::Client::new();
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let response = client
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.get(url.as_str())
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.send()
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.map_err(|err| err.to_string())?;
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let response = client.get(url).send().map_err(|err| err.to_string())?;
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if is_snapshot && response.status() == reqwest::StatusCode::NOT_FOUND {
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if response.status() == reqwest::StatusCode::NOT_FOUND && not_found_ok {
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progress_bar.finish_and_clear();
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warn!("Snapshot not found at {}", url);
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info!("Archive not found at {}", url);
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return Ok(());
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}
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@ -159,10 +145,10 @@ fn download_tar_bz2(
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response,
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};
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let mut file = File::create(&temp_archive_path)
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.map_err(|err| format!("Unable to create {:?}: {:?}", temp_archive_path, err))?;
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let mut file = File::create(&temp_destination_file)
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.map_err(|err| format!("Unable to create {:?}: {:?}", temp_destination_file, err))?;
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std::io::copy(&mut source, &mut file)
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.map_err(|err| format!("Unable to write {:?}: {:?}", temp_archive_path, err))?;
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.map_err(|err| format!("Unable to write {:?}: {:?}", temp_destination_file, err))?;
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source.progress_bar.finish_and_clear();
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info!(
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@ -176,25 +162,29 @@ fn download_tar_bz2(
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)
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);
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if !is_snapshot {
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info!("Extracting {:?}...", archive_path);
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std::fs::rename(temp_destination_file, destination_file)
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.map_err(|err| format!("Unable to rename: {:?}", err))?;
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Ok(())
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}
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fn extract_archive(archive_filename: &Path, destination_dir: &Path) -> Result<(), String> {
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info!("Extracting {:?}...", archive_filename);
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let extract_start = Instant::now();
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let tar_bz2 = File::open(&temp_archive_path)
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.map_err(|err| format!("Unable to open {}: {:?}", archive_name, err))?;
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fs::create_dir_all(destination_dir).map_err(|err| err.to_string())?;
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let tar_bz2 = File::open(&archive_filename)
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.map_err(|err| format!("Unable to open {:?}: {:?}", archive_filename, err))?;
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let tar = BzDecoder::new(std::io::BufReader::new(tar_bz2));
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let mut archive = tar::Archive::new(tar);
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archive
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.unpack(download_path)
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.map_err(|err| format!("Unable to unpack {}: {:?}", archive_name, err))?;
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.unpack(destination_dir)
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.map_err(|err| format!("Unable to unpack {:?}: {:?}", archive_filename, err))?;
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info!(
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"Extracted {} in {:?}",
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archive_name,
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"Extracted {:?} in {:?}",
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archive_filename,
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Instant::now().duration_since(extract_start)
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);
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}
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std::fs::rename(temp_archive_path, archive_path)
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.map_err(|err| format!("Unable to rename: {:?}", err))?;
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Ok(())
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}
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@ -296,23 +286,22 @@ fn get_rpc_node(
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.collect();
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let rpc_peers_blacklisted = rpc_peers_total - rpc_peers.len();
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if rpc_peers_blacklisted == rpc_peers_total {
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// If all nodes are blacklisted and no additional nodes are discovered after 60 seconds,
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// remove the blacklist and try them all again
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if blacklist_timeout.elapsed().as_secs() > 60 {
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info!("Node blacklist timeout expired");
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blacklisted_rpc_nodes.clear();
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continue;
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}
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} else {
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blacklist_timeout = Instant::now();
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}
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info!(
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"Total {} RPC nodes found. {} blacklisted ",
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rpc_peers_total, rpc_peers_blacklisted
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);
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if rpc_peers_blacklisted == rpc_peers_total {
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// If all nodes are blacklisted and no additional nodes are discovered after 60 seconds,
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// remove the blacklist and try them all again
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if blacklist_timeout.elapsed().as_secs() > 60 {
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info!("Blacklist timeout expired");
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blacklisted_rpc_nodes.clear();
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}
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continue;
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}
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blacklist_timeout = Instant::now();
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let mut highest_snapshot_hash: Option<(Slot, Hash)> = None;
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let eligible_rpc_peers = if snapshot_not_required {
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rpc_peers
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@ -358,8 +347,14 @@ fn get_rpc_node(
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}
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Some(highest_snapshot_hash) => {
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info!(
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"Highest available snapshot slot is {}, available from {:?}",
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"Highest available snapshot slot is {}, available from {} node{}: {:?}",
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highest_snapshot_hash.0,
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eligible_rpc_peers.len(),
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if eligible_rpc_peers.len() > 1 {
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"s"
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} else {
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""
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},
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eligible_rpc_peers
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.iter()
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.map(|contact_info| contact_info.id)
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@ -452,38 +447,49 @@ fn check_vote_account(
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fn download_genesis(
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rpc_addr: &SocketAddr,
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rpc_client: &RpcClient,
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ledger_path: &Path,
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validator_config: &mut ValidatorConfig,
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) -> Result<(), String> {
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let genesis_hash = rpc_client
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.get_genesis_hash()
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.map_err(|err| format!("Failed to get genesis hash: {}", err))?;
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let genesis_package = ledger_path.join("genesis.tar.bz2");
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let genesis_config = if !genesis_package.exists() {
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let tmp_genesis_path = ledger_path.join("tmp-genesis");
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let tmp_genesis_package = tmp_genesis_path.join("genesis.tar.bz2");
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let _ignored = fs::remove_dir_all(&tmp_genesis_path);
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download_file(
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&format!("http://{}/{}", rpc_addr, "genesis.tar.bz2"),
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&tmp_genesis_package,
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false,
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)?;
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extract_archive(&tmp_genesis_package, &ledger_path)?;
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let tmp_genesis_config = GenesisConfig::load(&ledger_path)
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.map_err(|err| format!("Failed to load downloaded genesis config: {}", err))?;
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if let Some(expected_genesis_hash) = validator_config.expected_genesis_hash {
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if expected_genesis_hash != genesis_hash {
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return Err(format!(
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"Genesis hash mismatch: expected {} but local genesis hash is {}",
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expected_genesis_hash, genesis_hash,
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));
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}
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}
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download_tar_bz2(&rpc_addr, "genesis.tar.bz2", &ledger_path, false)
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.map_err(|err| format!("Failed to download genesis config: {}", err))?;
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let genesis_config = GenesisConfig::load(&ledger_path)
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.map_err(|err| format!("Failed to load genesis config: {}", err))?;
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if genesis_config.hash() != genesis_hash {
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if expected_genesis_hash != tmp_genesis_config.hash() {
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return Err(format!(
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"Genesis hash mismatch: expected {} but downloaded genesis hash is {}",
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genesis_hash,
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genesis_config.hash(),
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expected_genesis_hash,
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tmp_genesis_config.hash(),
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));
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}
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}
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validator_config.expected_genesis_hash = Some(genesis_hash);
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std::fs::rename(tmp_genesis_package, genesis_package)
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.map_err(|err| format!("Unable to rename: {:?}", err))?;
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tmp_genesis_config
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} else {
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GenesisConfig::load(&ledger_path)
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.map_err(|err| format!("Failed to load genesis config: {}", err))?
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};
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if validator_config.expected_genesis_hash.is_none() {
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info!("Expected genesis hash set to {}", genesis_config.hash());
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// If no particular genesis hash is expected use the one that's here
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validator_config.expected_genesis_hash = Some(genesis_config.hash());
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}
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Ok(())
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}
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@ -501,13 +507,15 @@ fn download_snapshot(
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fs::remove_file(&snapshot_package)
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.map_err(|err| format!("error removing {:?}: {}", snapshot_package, err))?;
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}
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download_tar_bz2(
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download_file(
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&format!(
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"http://{}/{}",
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rpc_addr,
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snapshot_package.file_name().unwrap().to_str().unwrap(),
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snapshot_package.parent().unwrap(),
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snapshot_package.file_name().unwrap().to_str().unwrap()
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),
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&snapshot_package,
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true,
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)
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.map_err(|err| format!("Failed to fetch snapshot: {:?}", err))?;
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)?;
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Ok(())
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}
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@ -1117,11 +1125,25 @@ pub fn main() {
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.and_then(|_| {
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download_genesis(
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&rpc_contact_info.rpc,
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&rpc_client,
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&ledger_path,
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&mut validator_config,
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)
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})
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.and_then(|_| {
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if let Some(expected_genesis_hash) = validator_config.expected_genesis_hash {
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// Sanity check that the RPC node is using the expected genesis hash before
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// downloading a snapshot from it
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let rpc_genesis_hash = rpc_client
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.get_genesis_hash()
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.map_err(|err| format!("Failed to get genesis hash: {}", err))?;
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if expected_genesis_hash != rpc_genesis_hash {
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return Err(format!("Genesis hash mismatch: expected {} but RPC node genesis hash is {}",
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expected_genesis_hash, rpc_genesis_hash));
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}
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}
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Ok(())
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})
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.and_then(|_| download_snapshot(&rpc_contact_info.rpc, &ledger_path, snapshot_hash))
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.and_then(|_| {
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if !validator_config.voting_disabled && !no_check_vote_account {
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