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Close hostile recovery and concurrency gaps

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ms2k 2026-07-18 05:47:15 +09:00
commit 3f9b1b3543
1 changed files with 306 additions and 113 deletions
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24
crates/lazaret-client/src/production.rs
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@ -84,6 +84,9 @@ impl ProductionClientBackend {
Ok((authority, socket_path, publication))
if publication_matches(configuration, &publication) =>
{
if !control_socket_is_live(&socket_path) {
return Ok(Discovery::Stale);
}
Ok(Discovery::Ready(Box::new(ControlEndpoint::confined(
socket_path,
publication,
@ -177,8 +180,7 @@ impl ProductionClientBackend {
loop {
match self.discover().map_err(ClientError::Backend)? {
Discovery::Ready(endpoint) => return Ok(*endpoint),
Discovery::Stale => return Err(ClientError::StaleCoordinator),
Discovery::Absent => {}
Discovery::Stale | Discovery::Absent => {}
}
if self
.coordinator
@ -231,11 +233,7 @@ impl ClientBackend for ProductionClientBackend {
Discovery::Stale => return Ok(DomainStatus::Stale),
Discovery::Absent => {}
}
if self.domain_lock_is_available()? {
Ok(DomainStatus::Absent)
} else {
Ok(DomainStatus::Starting)
}
Ok(DomainStatus::Absent)
}
fn acquire_bootstrap(&mut self) -> Result<BootstrapAcquisition, Self::Error> {
@ -273,8 +271,7 @@ impl ClientBackend for ProductionClientBackend {
loop {
match self.discover().map_err(ClientError::Backend)? {
Discovery::Ready(endpoint) => return Ok(*endpoint),
Discovery::Stale => return Err(ClientError::StaleCoordinator),
Discovery::Absent => {}
Discovery::Stale | Discovery::Absent => {}
}
match std::os::unix::net::UnixStream::connect(&socket) {
Ok(mut stream) => {
@ -407,6 +404,10 @@ pub(crate) fn open_private_domain_lock(root: &impl AsFd) -> Result<File, Product
Ok(file)
}
fn control_socket_is_live(socket_path: &std::path::Path) -> bool {
std::os::unix::net::UnixStream::connect(socket_path).is_ok()
}
fn publication_matches(
configuration: &ResolvedDomainConfiguration,
publication: &lazaret_core::records::ProtocolPublicationIdentity,
@ -587,7 +588,10 @@ mod tests {
let (server, _) = listener.accept().unwrap();
assert_eq!(observed, publication);
drop((authority, client, server));
assert!(control_socket_is_live(&runtime_path.join("c.sock")));
let (probe, _) = listener.accept().unwrap();
drop((authority, client, server, probe, listener));
assert!(!control_socket_is_live(&runtime_path.join("c.sock")));
}
#[test]