Skip to content

Commit

Permalink
solana-dos can now DoS gossip nodes (solana-labs#9652)
Browse files Browse the repository at this point in the history
automerge
  • Loading branch information
mvines authored Apr 23, 2020
1 parent 504160b commit d1cbccd
Show file tree
Hide file tree
Showing 5 changed files with 62 additions and 38 deletions.
61 changes: 38 additions & 23 deletions core/src/gossip_service.rs
Original file line number Diff line number Diff line change
Expand Up @@ -63,7 +63,7 @@ impl GossipService {
}
}

/// Discover Nodes and Archivers in a cluster
/// Discover Validators and Archivers in a cluster
pub fn discover_cluster(
entrypoint: &SocketAddr,
num_nodes: usize,
Expand All @@ -76,16 +76,17 @@ pub fn discover_cluster(
None,
None,
)
.map(|(_all_peers, validators, archivers)| (validators, archivers))
}

pub fn discover(
entrypoint: Option<&SocketAddr>,
num_nodes: Option<usize>,
num_nodes: Option<usize>, // num_nodes only counts validators and archivers, excludes spy nodes
timeout: Option<u64>,
find_node_by_pubkey: Option<Pubkey>,
find_node_by_gossip_addr: Option<&SocketAddr>,
my_gossip_addr: Option<&SocketAddr>,
) -> std::io::Result<(Vec<ContactInfo>, Vec<ContactInfo>)> {
) -> std::io::Result<(Vec<ContactInfo>, Vec<ContactInfo>, Vec<ContactInfo>)> {
let exit = Arc::new(AtomicBool::new(false));
let (gossip_service, ip_echo, spy_ref) = make_gossip_node(entrypoint, &exit, my_gossip_addr);

Expand All @@ -98,7 +99,7 @@ pub fn discover(

let _ip_echo_server = ip_echo.map(solana_net_utils::ip_echo_server);

let (met_criteria, secs, tvu_peers, storage_peers) = spy(
let (met_criteria, secs, all_peers, tvu_peers, storage_peers) = spy(
spy_ref.clone(),
num_nodes,
timeout,
Expand All @@ -115,15 +116,15 @@ pub fn discover(
secs,
spy_ref.contact_info_trace()
);
return Ok((tvu_peers, storage_peers));
return Ok((all_peers, tvu_peers, storage_peers));
}

if !tvu_peers.is_empty() {
info!(
"discover failed to match criteria by timeout...\n{}",
spy_ref.contact_info_trace()
);
return Ok((tvu_peers, storage_peers));
return Ok((all_peers, tvu_peers, storage_peers));
}

info!("discover failed...\n{}", spy_ref.contact_info_trace());
Expand Down Expand Up @@ -178,9 +179,16 @@ fn spy(
timeout: Option<u64>,
find_node_by_pubkey: Option<Pubkey>,
find_node_by_gossip_addr: Option<&SocketAddr>,
) -> (bool, u64, Vec<ContactInfo>, Vec<ContactInfo>) {
) -> (
bool,
u64,
Vec<ContactInfo>,
Vec<ContactInfo>,
Vec<ContactInfo>,
) {
let now = Instant::now();
let mut met_criteria = false;
let mut all_peers: Vec<ContactInfo> = Vec::new();
let mut tvu_peers: Vec<ContactInfo> = Vec::new();
let mut storage_peers: Vec<ContactInfo> = Vec::new();
let mut i = 1;
Expand All @@ -191,26 +199,32 @@ fn spy(
}
}

all_peers = spy_ref
.all_peers()
.into_iter()
.map(|x| x.0)
.collect::<Vec<_>>();
tvu_peers = spy_ref.all_tvu_peers().into_iter().collect::<Vec<_>>();
storage_peers = spy_ref.all_storage_peers();

let mut nodes: Vec<_> = tvu_peers.iter().chain(storage_peers.iter()).collect();
nodes.sort();
nodes.dedup();

let found_node_by_pubkey = if let Some(pubkey) = find_node_by_pubkey {
nodes.iter().any(|x| x.id == pubkey)
all_peers.iter().any(|x| x.id == pubkey)
} else {
false
};

let found_node_by_gossip_addr = if let Some(gossip_addr) = find_node_by_gossip_addr {
nodes.iter().any(|x| x.gossip == *gossip_addr)
all_peers.iter().any(|x| x.gossip == *gossip_addr)
} else {
false
};

if let Some(num) = num_nodes {
// Only consider validators and archives for `num_nodes`
let mut nodes: Vec<_> = tvu_peers.iter().chain(storage_peers.iter()).collect();
nodes.sort();
nodes.dedup();

if nodes.len() >= num {
if found_node_by_pubkey || found_node_by_gossip_addr {
met_criteria = true;
Expand All @@ -234,6 +248,7 @@ fn spy(
(
met_criteria,
now.elapsed().as_secs(),
all_peers,
tvu_peers,
storage_peers,
)
Expand Down Expand Up @@ -295,21 +310,21 @@ mod tests {

let spy_ref = Arc::new(cluster_info);

let (met_criteria, secs, tvu_peers, _) = spy(spy_ref.clone(), None, Some(1), None, None);
let (met_criteria, secs, _, tvu_peers, _) = spy(spy_ref.clone(), None, Some(1), None, None);
assert_eq!(met_criteria, false);
assert_eq!(secs, 1);
assert_eq!(tvu_peers, spy_ref.tvu_peers());

// Find num_nodes
let (met_criteria, _, _, _) = spy(spy_ref.clone(), Some(1), None, None, None);
let (met_criteria, _, _, _, _) = spy(spy_ref.clone(), Some(1), None, None, None);
assert_eq!(met_criteria, true);
let (met_criteria, _, _, _) = spy(spy_ref.clone(), Some(2), None, None, None);
let (met_criteria, _, _, _, _) = spy(spy_ref.clone(), Some(2), None, None, None);
assert_eq!(met_criteria, true);

// Find specific node by pubkey
let (met_criteria, _, _, _) = spy(spy_ref.clone(), None, None, Some(peer0), None);
let (met_criteria, _, _, _, _) = spy(spy_ref.clone(), None, None, Some(peer0), None);
assert_eq!(met_criteria, true);
let (met_criteria, _, _, _) = spy(
let (met_criteria, _, _, _, _) = spy(
spy_ref.clone(),
None,
Some(0),
Expand All @@ -319,11 +334,11 @@ mod tests {
assert_eq!(met_criteria, false);

// Find num_nodes *and* specific node by pubkey
let (met_criteria, _, _, _) = spy(spy_ref.clone(), Some(1), None, Some(peer0), None);
let (met_criteria, _, _, _, _) = spy(spy_ref.clone(), Some(1), None, Some(peer0), None);
assert_eq!(met_criteria, true);
let (met_criteria, _, _, _) = spy(spy_ref.clone(), Some(3), Some(0), Some(peer0), None);
let (met_criteria, _, _, _, _) = spy(spy_ref.clone(), Some(3), Some(0), Some(peer0), None);
assert_eq!(met_criteria, false);
let (met_criteria, _, _, _) = spy(
let (met_criteria, _, _, _, _) = spy(
spy_ref.clone(),
Some(1),
Some(0),
Expand All @@ -333,11 +348,11 @@ mod tests {
assert_eq!(met_criteria, false);

// Find specific node by gossip address
let (met_criteria, _, _, _) =
let (met_criteria, _, _, _, _) =
spy(spy_ref.clone(), None, None, None, Some(&peer0_info.gossip));
assert_eq!(met_criteria, true);

let (met_criteria, _, _, _) = spy(
let (met_criteria, _, _, _, _) = spy(
spy_ref.clone(),
None,
Some(0),
Expand Down
4 changes: 2 additions & 2 deletions dos/src/main.rs
Original file line number Diff line number Diff line change
Expand Up @@ -91,7 +91,7 @@ fn run_dos(
}

fn main() {
solana_logger::setup();
solana_logger::setup_with_default("solana=info");
let matches = App::new(crate_name!())
.about(crate_description!())
.version(solana_clap_utils::version!())
Expand Down Expand Up @@ -148,7 +148,7 @@ fn main() {
let data_type = value_t_or_exit!(matches, "data_type", String);

info!("Finding cluster entry: {:?}", entrypoint_addr);
let (nodes, _archivers) = discover(
let (nodes, _validators, _archivers) = discover(
Some(&entrypoint_addr),
None,
Some(60),
Expand Down
29 changes: 16 additions & 13 deletions gossip/src/main.rs
Original file line number Diff line number Diff line change
Expand Up @@ -205,7 +205,7 @@ fn main() -> Result<(), Box<dyn error::Error>> {
}),
);

let (nodes, _archivers) = discover(
let (_all_peers, validators, _archivers) = discover(
entrypoint_addr.as_ref(),
num_nodes,
timeout,
Expand All @@ -216,28 +216,28 @@ fn main() -> Result<(), Box<dyn error::Error>> {

if timeout.is_some() {
if let Some(num) = num_nodes {
if nodes.len() < num {
if validators.len() < num {
let add = if num_nodes_exactly.is_some() {
""
} else {
" or more"
};
eprintln!(
"Error: Insufficient nodes discovered. Expecting {}{}",
"Error: Insufficient validators discovered. Expecting {}{}",
num, add,
);
exit(1);
}
}
if let Some(node) = pubkey {
if nodes.iter().find(|x| x.id == node).is_none() {
if validators.iter().find(|x| x.id == node).is_none() {
eprintln!("Error: Could not find node {:?}", node);
exit(1);
}
}
}
if let Some(num_nodes_exactly) = num_nodes_exactly {
if nodes.len() > num_nodes_exactly {
if validators.len() > num_nodes_exactly {
eprintln!(
"Error: Extra nodes discovered. Expecting exactly {}",
num_nodes_exactly
Expand All @@ -251,7 +251,7 @@ fn main() -> Result<(), Box<dyn error::Error>> {
let all = matches.is_present("all");
let entrypoint_addr = parse_entrypoint(&matches);
let timeout = value_t_or_exit!(matches, "timeout", u64);
let (nodes, _archivers) = discover(
let (_all_peers, validators, _archivers) = discover(
entrypoint_addr.as_ref(),
Some(1),
Some(timeout),
Expand All @@ -260,7 +260,7 @@ fn main() -> Result<(), Box<dyn error::Error>> {
None,
)?;

let rpc_addrs: Vec<_> = nodes
let rpc_addrs: Vec<_> = validators
.iter()
.filter_map(|contact_info| {
if (any || all || Some(contact_info.gossip) == entrypoint_addr)
Expand Down Expand Up @@ -291,23 +291,26 @@ fn main() -> Result<(), Box<dyn error::Error>> {
.unwrap()
.parse::<Pubkey>()
.unwrap();
let (nodes, _archivers) = discover(
let (_all_peers, validators, _archivers) = discover(
entrypoint_addr.as_ref(),
None,
None,
Some(pubkey),
None,
None,
)?;
let node = nodes.iter().find(|x| x.id == pubkey).unwrap();
let validator = validators.iter().find(|x| x.id == pubkey).unwrap();

if !ContactInfo::is_valid_address(&node.rpc) {
eprintln!("Error: RPC service is not enabled on node {:?}", pubkey);
if !ContactInfo::is_valid_address(&validator.rpc) {
eprintln!(
"Error: RPC service is not enabled on validator {:?}",
pubkey
);
exit(1);
}
println!("\nSending stop request to node {:?}", pubkey);
println!("\nSending stop request to validator {:?}", pubkey);

let result = RpcClient::new_socket(node.rpc).validator_exit()?;
let result = RpcClient::new_socket(validator.rpc).validator_exit()?;
if result {
println!("Stop signal accepted");
} else {
Expand Down
4 changes: 4 additions & 0 deletions system-test/stability-testcases/gossip-dos-test.sh
Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,10 @@ bootstrapInstall() {
}

bootstrapInstall "edge"
solana-install-init --version
solana-install-init edge
solana-gossip --version
solana-dos --version

killall solana-gossip || true
solana-gossip spy --gossip-port 8001 > "$logDir"/gossip.log 2>&1 &
Expand Down
2 changes: 2 additions & 0 deletions system-test/stability-testcases/gossip-dos-test.yml
Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
steps:
- command: "system-test/stability-testcases/gossip-dos-test.sh"
label: "Gossip DoS Test"
artifact_paths:
- "system-test/stability-testcases/logs/*"

0 comments on commit d1cbccd

Please sign in to comment.