Replace lexical Rust fragments with real modules

crates/lazaret-client/src/coordinator_backend.rs

@@ -506,6 +506,7 @@ mod tests {
     use std::collections::BTreeMap;
     use std::fs;
     use std::io::Read;
+    use std::os::fd::AsRawFd;
     use std::os::unix::ffi::OsStringExt;
     use std::os::unix::fs::PermissionsExt;
     use std::os::unix::net::{UnixListener, UnixStream};
@@ -517,11 +518,18 @@ mod tests {
     };
     use lazaret_core::records::{GenerationIdentity, ProtocolPublicationIdentity, ProtocolVersion};
 
+    fn test_artifact_root() -> std::path::PathBuf {
+        let root =
+            std::path::PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("../../target/t/client");
+        fs::create_dir_all(&root).unwrap();
+        root.canonicalize().unwrap()
+    }
+
     #[test]
     fn replaced_domain_roots_cannot_redirect_client_lock_or_control_authority() {
         let persistent_tree = tempfile::Builder::new()
             .prefix("lz-")
-            .tempdir_in("/tmp")
+            .tempdir_in(test_artifact_root())
             .unwrap();
         let persistent_configuration = configuration(persistent_tree.path());
         let persistent_path = path(
@@ -543,7 +551,7 @@ mod tests {
 
         let runtime_tree = tempfile::Builder::new()
             .prefix("lz-")
-            .tempdir_in("/tmp")
+            .tempdir_in(test_artifact_root())
             .unwrap();
         let runtime_configuration = configuration(runtime_tree.path());
         let runtime_path = path(
@@ -568,7 +576,7 @@ mod tests {
     fn confined_control_discovery_connects_through_the_retained_root() {
         let tree = tempfile::Builder::new()
             .prefix("lz-")
-            .tempdir_in("/tmp")
+            .tempdir_in(test_artifact_root())
             .unwrap();
         let configuration = configuration(tree.path());
         let runtime_path = path(
@@ -577,7 +585,9 @@ mod tests {
                 .canonical_label()
                 .as_bytes(),
         );
-        let listener = UnixListener::bind(runtime_path.join("c.sock")).unwrap();
+        let runtime = fs::File::open(&runtime_path).unwrap();
+        let socket_path = PathBuf::from(format!("/proc/self/fd/{}/c.sock", runtime.as_raw_fd()));
+        let listener = UnixListener::bind(&socket_path).unwrap();
         fs::set_permissions(
             runtime_path.join("c.sock"),
             fs::Permissions::from_mode(0o600),
@@ -622,10 +632,10 @@ mod tests {
         let (server, _) = listener.accept().unwrap();
 
         assert_eq!(observed, publication);
-        assert!(control_socket_is_live(&runtime_path.join("c.sock")));
+        assert!(control_socket_is_live(&socket_path));
         let (probe, _) = listener.accept().unwrap();
         drop((authority, client, server, probe, listener));
-        assert!(!control_socket_is_live(&runtime_path.join("c.sock")));
+        assert!(!control_socket_is_live(&socket_path));
     }
 
     #[test]

crates/lazaret-core/src/configuration.rs

@@ -18,6 +18,8 @@ use crate::records::{
     ResolvedNetworkReadinessV1, ResolvedVolume, TRUSTED_HOST_CONFIGURATION_SCHEMA_ID,
     TrustedHostConfigurationV1, VolumeAccess, VolumeKind,
 };
+use confined_io::{io_error, open_absolute_directory, validate_executable};
+use validation::validate_sandbox_path;
 
 pub const MAX_CONFIGURATION_BYTES: usize = 1_048_576;
 
@@ -714,7 +716,12 @@ impl ResolvedDomainConfiguration {
     }
 }
 
-include!("configuration/loading.rs");
+mod confined_io;
-include!("configuration/validation.rs");
+mod loading;
-include!("configuration/confined_io.rs");
+mod validation;
-include!("configuration/tests.rs");
+
+pub use loading::{load_trusted_configuration, parse_trusted_configuration};
+pub use validation::{derive_configuration_fingerprint, derive_domain_id};
+
+#[cfg(test)]
+mod tests;

crates/lazaret-core/src/configuration/confined_io.rs

@@ -1,4 +1,18 @@
-fn validate_host_base(path: &Path, name: &str) -> Result<(), ConfigurationError> {
+use super::validation::{
+    validate_declared_host_path, validate_environment_name, validate_sandbox_path,
+};
+use super::{
+    AsRawFd, BTreeMap, BTreeSet, ConfigurationError, ConfigurationErrorKind,
+    ConfigurationLoadRequest, ConfinedPathPlan, ConfinedPathType, EnvironmentReference,
+    EnvironmentValue, File, FileType, HostPath, Ipv4Prefix, MAX_CONFIGURATION_BYTES, Mode,
+    NetworkProbeTargetConfigurationV1, NetworkReadinessConfigurationV1, OFlags, OsStrExt, OsString,
+    OwnedFd, Path, PathBuf, ProfileConfigurationV1, Read, ResolveFlags, ResolvedAutoApprovalRule,
+    ResolvedDnsProbeTargetV1, ResolvedNetworkProbeTargetV1, ResolvedNetworkReadinessV1,
+    ResolvedVolume, Seek, SeekFrom, Stat, TrustedHostConfigurationV1, VolumeAccess, VolumeKind,
+    fmt, openat2,
+};
+
+pub(super) fn validate_host_base(path: &Path, name: &str) -> Result<(), ConfigurationError> {
     if !path.is_absolute()
         || path.as_os_str().is_empty()
         || path.as_os_str().as_bytes().contains(&0)
@@ -11,7 +25,7 @@ fn validate_host_base(path: &Path, name: &str) -> Result<(), ConfigurationError>
     Ok(())
 }
 
-fn config_home(request: &ConfigurationLoadRequest) -> PathBuf {
+pub(super) fn config_home(request: &ConfigurationLoadRequest) -> PathBuf {
     request
         .xdg_config_home
         .as_ref()
@@ -20,7 +34,7 @@ fn config_home(request: &ConfigurationLoadRequest) -> PathBuf {
         .unwrap_or_else(|| request.home.join(".config"))
 }
 
-fn data_home(request: &ConfigurationLoadRequest) -> PathBuf {
+pub(super) fn data_home(request: &ConfigurationLoadRequest) -> PathBuf {
     request
         .xdg_data_home
         .as_ref()
@@ -29,7 +43,7 @@ fn data_home(request: &ConfigurationLoadRequest) -> PathBuf {
         .unwrap_or_else(|| request.home.join(".local/share"))
 }
 
-fn expand_host_path(
+pub(super) fn expand_host_path(
     declaration: &str,
     home: &Path,
     profile: Option<&Path>,
@@ -49,7 +63,9 @@ fn expand_host_path(
     Ok(PathBuf::from(declaration))
 }
 
-fn read_stable_configuration(plan: &ConfinedPathPlan) -> Result<Vec<u8>, ConfigurationError> {
+pub(super) fn read_stable_configuration(
+    plan: &ConfinedPathPlan,
+) -> Result<Vec<u8>, ConfigurationError> {
     let path_descriptor = plan.open_authority()?;
     let before = rustix::fs::fstat(&path_descriptor).map_err(io_error)?;
     validate_configuration_stat(&before)?;
@@ -93,7 +109,7 @@ fn read_stable_configuration(plan: &ConfinedPathPlan) -> Result<Vec<u8>, Configu
     Ok(first)
 }
 
-fn validate_configuration_stat(stat: &Stat) -> Result<(), ConfigurationError> {
+pub(super) fn validate_configuration_stat(stat: &Stat) -> Result<(), ConfigurationError> {
     let uid = rustix::process::getuid().as_raw();
     if !FileType::from_raw_mode(stat.st_mode).is_file()
         || stat.st_nlink != 1
@@ -130,7 +146,7 @@ fn same_file_snapshot(left: &Stat, right: &Stat) -> bool {
         && left.st_ctime_nsec == right.st_ctime_nsec
 }
 
-fn confined_existing(
+pub(super) fn confined_existing(
     canonical: &Path,
     expected: ConfinedPathType,
     executable: bool,
@@ -147,7 +163,7 @@ fn confined_existing(
     Ok(plan)
 }
 
-fn open_absolute_directory(path: &Path) -> Result<OwnedFd, ConfigurationError> {
+pub(super) fn open_absolute_directory(path: &Path) -> Result<OwnedFd, ConfigurationError> {
     openat2(
         rustix::fs::CWD,
         path,
@@ -158,7 +174,7 @@ fn open_absolute_directory(path: &Path) -> Result<OwnedFd, ConfigurationError> {
     .map_err(io_error)
 }
 
-fn ensure_owned_directory(path: &Path, uid: u32) -> Result<PathBuf, ConfigurationError> {
+pub(super) fn ensure_owned_directory(path: &Path, uid: u32) -> Result<PathBuf, ConfigurationError> {
     validate_host_base(path, "Lazaret root")?;
     if path.exists() {
         let canonical = std::fs::canonicalize(path).map_err(io_error)?;
@@ -235,7 +251,7 @@ fn validate_owned_directory(descriptor: &OwnedFd, uid: u32) -> Result<(), Config
     Ok(())
 }
 
-fn validate_persistent_destinations(
+pub(super) fn validate_persistent_destinations(
     destinations: &[String],
     protected: &BTreeSet<String>,
 ) -> Result<Vec<String>, ConfigurationError> {
@@ -250,7 +266,7 @@ fn validate_persistent_destinations(
     Ok(destinations.to_vec())
 }
 
-fn require_clear_of_protected(
+pub(super) fn require_clear_of_protected(
     destination: &str,
     protected: &BTreeSet<String>,
 ) -> Result<(), ConfigurationError> {
@@ -267,7 +283,7 @@ fn require_clear_of_protected(
     }
 }
 
-fn require_strict_child_of_one(
+pub(super) fn require_strict_child_of_one(
     destination: &str,
     parents: &[String],
 ) -> Result<(), ConfigurationError> {
@@ -285,7 +301,7 @@ fn require_strict_child_of_one(
     }
 }
 
-fn require_pairwise_non_ancestral<'a>(
+pub(super) fn require_pairwise_non_ancestral<'a>(
     paths: impl IntoIterator<Item = &'a str>,
     kind: ConfigurationErrorKind,
 ) -> Result<(), ConfigurationError> {
@@ -319,7 +335,7 @@ fn sandbox_is_strict_descendant(child: &str, parent: &str) -> bool {
         .is_some_and(|suffix| suffix.starts_with('/'))
 }
 
-fn require_pairwise_disjoint(
+pub(super) fn require_pairwise_disjoint(
     paths: &[&Path],
     authorities: &[&ConfinedPathPlan],
     kind: ConfigurationErrorKind,
@@ -343,15 +359,15 @@ fn require_pairwise_disjoint(
     Ok(())
 }
 
-fn paths_intersect(left: &Path, right: &Path) -> bool {
+pub(super) fn paths_intersect(left: &Path, right: &Path) -> bool {
     left == right || left.starts_with(right) || right.starts_with(left)
 }
 
-fn is_strict_descendant(child: &Path, parent: &Path) -> bool {
+pub(super) fn is_strict_descendant(child: &Path, parent: &Path) -> bool {
     child != parent && child.starts_with(parent)
 }
 
-fn resolve_network(
+pub(super) fn resolve_network(
     configuration: &TrustedHostConfigurationV1,
     selected: &ProfileConfigurationV1,
 ) -> Result<(Vec<Ipv4Prefix>, Vec<Ipv4Prefix>), ConfigurationError> {
@@ -386,7 +402,7 @@ fn resolve_network(
 }
 
 const MAX_READINESS_TARGETS: usize = 32;
-fn resolve_network_readiness(
+pub(super) fn resolve_network_readiness(
     readiness: &NetworkReadinessConfigurationV1,
     allow: &[Ipv4Prefix],
     deny: &[Ipv4Prefix],
@@ -552,7 +568,7 @@ fn prefix_contains(prefix: Ipv4Prefix, address: [u8; 4]) -> bool {
     u32::from_be_bytes(address) & mask == u32::from_be_bytes(prefix.address)
 }
 
-fn parse_ipv4_prefix(value: &str) -> Result<Ipv4Prefix, ConfigurationError> {
+pub(super) fn parse_ipv4_prefix(value: &str) -> Result<Ipv4Prefix, ConfigurationError> {
     let (address, prefix) = value.split_once('/').ok_or_else(|| {
         ConfigurationError::new(
             ConfigurationErrorKind::InvalidNetwork,
@@ -595,7 +611,7 @@ fn parse_ipv4_prefix(value: &str) -> Result<Ipv4Prefix, ConfigurationError> {
     })
 }
 
-fn resolve_environment_references(
+pub(super) fn resolve_environment_references(
     selected: &ProfileConfigurationV1,
 ) -> Result<Vec<EnvironmentReference>, ConfigurationError> {
     selected
@@ -618,7 +634,7 @@ fn resolve_environment_references(
         .collect()
 }
 
-fn resolve_environment_values(
+pub(super) fn resolve_environment_values(
     references: &[EnvironmentReference],
     environment: &BTreeMap<String, OsString>,
 ) -> Result<BTreeMap<String, EnvironmentValue>, ConfigurationError> {
@@ -645,7 +661,10 @@ fn resolve_environment_values(
         .collect()
 }
 
-fn validate_executable(descriptor: &OwnedFd, uid: u32) -> Result<(), ConfigurationError> {
+pub(super) fn validate_executable(
+    descriptor: &OwnedFd,
+    uid: u32,
+) -> Result<(), ConfigurationError> {
     let stat = rustix::fs::fstat(descriptor).map_err(io_error)?;
     let executable_by_invoking_user = if stat.st_uid == uid {
         stat.st_mode & 0o100 != 0
@@ -673,7 +692,7 @@ fn validate_executable(descriptor: &OwnedFd, uid: u32) -> Result<(), Configurati
     Ok(())
 }
 
-fn encode_volume(volume: &ResolvedVolume) -> Result<Vec<u8>, ConfigurationError> {
+pub(super) fn encode_volume(volume: &ResolvedVolume) -> Result<Vec<u8>, ConfigurationError> {
     let mut encoded = Vec::new();
     push_bytes(&mut encoded, volume.canonical_host_source.as_bytes())?;
     push_bytes(&mut encoded, volume.container_path.as_bytes())?;
@@ -689,7 +708,9 @@ fn encode_volume(volume: &ResolvedVolume) -> Result<Vec<u8>, ConfigurationError>
     Ok(encoded)
 }
 
-fn encode_auto_approval(rule: &ResolvedAutoApprovalRule) -> Result<Vec<u8>, ConfigurationError> {
+pub(super) fn encode_auto_approval(
+    rule: &ResolvedAutoApprovalRule,
+) -> Result<Vec<u8>, ConfigurationError> {
     let mut encoded = Vec::new();
     push_bytes(&mut encoded, rule.canonical_executable.as_bytes())?;
     push_declared_list(
@@ -704,18 +725,18 @@ fn encode_auto_approval(rule: &ResolvedAutoApprovalRule) -> Result<Vec<u8>, Conf
     Ok(encoded)
 }
 
-fn push_bytes(target: &mut Vec<u8>, bytes: &[u8]) -> Result<(), ConfigurationError> {
+pub(super) fn push_bytes(target: &mut Vec<u8>, bytes: &[u8]) -> Result<(), ConfigurationError> {
     let length = u32::try_from(bytes.len()).map_err(|_| fingerprint_overflow())?;
     target.extend_from_slice(&length.to_be_bytes());
     target.extend_from_slice(bytes);
     Ok(())
 }
 
-fn push_bool(target: &mut Vec<u8>, value: bool) {
+pub(super) fn push_bool(target: &mut Vec<u8>, value: bool) {
     target.push(u8::from(value));
 }
 
-fn push_sorted_list(
+pub(super) fn push_sorted_list(
     target: &mut Vec<u8>,
     items: impl IntoIterator<Item = Result<Vec<u8>, ConfigurationError>>,
 ) -> Result<(), ConfigurationError> {
@@ -748,11 +769,11 @@ fn fingerprint_overflow() -> ConfigurationError {
     )
 }
 
-fn host_path(path: &Path) -> HostPath {
+pub(super) fn host_path(path: &Path) -> HostPath {
     HostPath::new(path.as_os_str().as_bytes().to_vec())
 }
 
-fn hex_lower(bytes: &[u8]) -> String {
+pub(super) fn hex_lower(bytes: &[u8]) -> String {
     const HEX: &[u8; 16] = b"0123456789abcdef";
     let mut output = String::with_capacity(bytes.len() * 2);
     for byte in bytes {
@@ -762,6 +783,6 @@ fn hex_lower(bytes: &[u8]) -> String {
     output
 }
 
-fn io_error(error: impl fmt::Display) -> ConfigurationError {
+pub(super) fn io_error(error: impl fmt::Display) -> ConfigurationError {
     ConfigurationError::new(ConfigurationErrorKind::Io, error.to_string())
 }

crates/lazaret-core/src/configuration/loading.rs

@@ -1,3 +1,22 @@
+use super::confined_io::{
+    config_home, confined_existing, data_home, ensure_owned_directory, expand_host_path, hex_lower,
+    host_path, io_error, is_strict_descendant, paths_intersect, read_stable_configuration,
+    require_clear_of_protected, require_pairwise_disjoint, require_pairwise_non_ancestral,
+    require_strict_child_of_one, resolve_environment_references, resolve_environment_values,
+    resolve_network, resolve_network_readiness, validate_configuration_stat, validate_executable,
+    validate_host_base, validate_persistent_destinations,
+};
+use super::validation::{
+    validate_profile_name, validate_sandbox_path, validate_structural_configuration, validate_text,
+};
+use super::{
+    ConfigurationError, ConfigurationErrorKind, ConfigurationFingerprintRecordV1,
+    ConfigurationLoadRequest, ConfinedPathPlan, ConfinedPathType, MAX_CONFIGURATION_BYTES, OFlags,
+    OsStrExt, PathBuf, ResolvedAutoApproval, ResolvedAutoApprovalRule, ResolvedDomainConfiguration,
+    ResolvedVolume, ResolvedVolumeAuthority, TrustedHostConfigurationV1, VolumeKind,
+    derive_configuration_fingerprint, derive_domain_id,
+};
+
 /// Parses the closed trusted-host configuration document without resolving host authority.
 ///
 /// # Errors

crates/lazaret-core/src/configuration/tests.rs

@@ -1,9 +1,8 @@
-#[cfg(test)]
+use super::validation::validate_path_suffix;
-mod tests {
+use super::{DescriptorIdentity, descriptor_identities_alias};
-    use super::{DescriptorIdentity, descriptor_identities_alias, validate_path_suffix};
 
-    #[test]
+#[test]
-    fn bind_mount_identity_aliases_across_distinct_mount_ids() {
+fn bind_mount_identity_aliases_across_distinct_mount_ids() {
     let original = DescriptorIdentity {
         device: 7,
         inode: 11,
@@ -19,13 +18,13 @@ mod tests {
     };
     assert!(descriptor_identities_alias(original, bind_alias));
     assert!(!descriptor_identities_alias(original, distinct));
-    }
+}
 
-    #[test]
+#[test]
-    fn path_suffix_rejects_every_expansion_and_shell_metacharacter() {
+fn path_suffix_rejects_every_expansion_and_shell_metacharacter() {
     for metacharacter in [
-            '*', '?', '[', ']', '{', '}', '$', '~', '\\', '`', '\'', '"', ';', '|', '&', '<', '>',
+        '*', '?', '[', ']', '{', '}', '$', '~', '\\', '`', '\'', '"', ';', '|', '&', '<', '>', '(',
-            '(', ')', '!', '\n', '\r', '\t',
+        ')', '!', '\n', '\r', '\t',
     ] {
         assert!(
             validate_path_suffix(&format!("safe{metacharacter}suffix")).is_err(),
@@ -33,5 +32,4 @@ mod tests {
         );
     }
     assert!(validate_path_suffix("safe path/with+literal@characters").is_ok());
-    }
 }

crates/lazaret-core/src/configuration/validation.rs

@@ -1,3 +1,13 @@
+use super::confined_io::{
+    encode_auto_approval, encode_volume, parse_ipv4_prefix, push_bool, push_bytes,
+    push_sorted_list, require_pairwise_non_ancestral,
+};
+use super::{
+    ConfigurationError, ConfigurationErrorKind, ConfigurationFingerprint,
+    ConfigurationFingerprintRecordV1, Digest, DomainId, Sha256,
+    TRUSTED_HOST_CONFIGURATION_SCHEMA_ID, TrustedHostConfigurationV1,
+};
+
 /// Derives the specification-framed v1 Domain ID.
 ///
 /// # Errors
@@ -96,7 +106,7 @@ pub fn derive_configuration_fingerprint(
     ))
 }
 
-fn validate_structural_configuration(
+pub(super) fn validate_structural_configuration(
     configuration: &TrustedHostConfigurationV1,
 ) -> Result<(), ConfigurationError> {
     if configuration.schema_id() != TRUSTED_HOST_CONFIGURATION_SCHEMA_ID {
@@ -186,7 +196,7 @@ fn validate_image_reference(reference: &str) -> Result<(), ConfigurationError> {
     }
 }
 
-fn validate_profile_name(name: &str) -> Result<(), ConfigurationError> {
+pub(super) fn validate_profile_name(name: &str) -> Result<(), ConfigurationError> {
     let bytes = name.as_bytes();
     let valid = (1..=64).contains(&bytes.len())
         && bytes[0].is_ascii_alphanumeric()
@@ -204,7 +214,7 @@ fn validate_profile_name(name: &str) -> Result<(), ConfigurationError> {
     }
 }
 
-fn validate_environment_name(name: &str) -> Result<(), ConfigurationError> {
+pub(super) fn validate_environment_name(name: &str) -> Result<(), ConfigurationError> {
     let mut bytes = name.bytes();
     let valid = bytes
         .next()
@@ -220,7 +230,7 @@ fn validate_environment_name(name: &str) -> Result<(), ConfigurationError> {
     }
 }
 
-fn validate_text(value: &str, field: &str) -> Result<(), ConfigurationError> {
+pub(super) fn validate_text(value: &str, field: &str) -> Result<(), ConfigurationError> {
     if value.contains('\0') {
         Err(ConfigurationError::new(
             ConfigurationErrorKind::InvalidProfile,
@@ -231,7 +241,7 @@ fn validate_text(value: &str, field: &str) -> Result<(), ConfigurationError> {
     }
 }
 
-fn validate_declared_host_path(
+pub(super) fn validate_declared_host_path(
     declaration: &str,
     allow_profile: bool,
 ) -> Result<(), ConfigurationError> {
@@ -256,7 +266,7 @@ fn validate_declared_host_path(
     validate_path_suffix(suffix)
 }
 
-fn validate_sandbox_path(path: &str) -> Result<(), ConfigurationError> {
+pub(super) fn validate_sandbox_path(path: &str) -> Result<(), ConfigurationError> {
     validate_text(path, "sandbox path")?;
     let suffix = path.strip_prefix('/').ok_or_else(|| {
         ConfigurationError::new(
@@ -267,7 +277,7 @@ fn validate_sandbox_path(path: &str) -> Result<(), ConfigurationError> {
     validate_path_suffix(suffix)
 }
 
-fn validate_path_suffix(suffix: &str) -> Result<(), ConfigurationError> {
+pub(super) fn validate_path_suffix(suffix: &str) -> Result<(), ConfigurationError> {
     if suffix.is_empty()
         || suffix.ends_with('/')
         || suffix

crates/lazaret-core/src/records/lifecycle.rs

@@ -845,4 +845,14 @@ pub struct DomainStore {
     pub session_terminals: Vec<SessionTerminal>,
     pub mailboxes: Vec<Mailbox>,
 }
-include!("lifecycle/ownership.rs");
+mod ownership;
+
+pub use ownership::{
+    GitRoutingOwnership, HelperOwnership, NetworkOwnership, ParticipantOwnership,
+    PreparedLowerOwnership, PublicationOwnership, SandboxOwnership, StateAnchorOwnership,
+    StateAnchorReleaseEvidence,
+};
+use ownership::{
+    validate_existing_process_progress, validate_option_progress, validate_participant_activation,
+    validate_participant_progress, validate_participant_release, validate_process_progress,
+};

crates/lazaret-core/src/records/lifecycle/ownership.rs

@@ -1,3 +1,10 @@
+use super::{
+    BundleDigest, ContainerId, DerivedPolicyDigest, Deserialize, DeviceId, GenerationId, HostPath,
+    InodeId, MountIdentity, NamespaceIdentity, NetworkReadinessEvidence, NetworkSidecarId,
+    ParticipantRole, ParticipantState, PersistedHostProcessOwnership, PidfsProcessIdentityV1,
+    PreparedArtifactId, ReadinessFingerprint, RecordTransitionError, Serialize, SourceIdentity,
+};
+
 #[derive(Clone, Debug, Deserialize, Eq, PartialEq, Serialize)]
 pub enum ParticipantOwnership {
     PreparedLower(PreparedLowerOwnership),
@@ -49,7 +56,7 @@ impl ParticipantOwnership {
         }
     }
 
-    fn is_intent(&self) -> bool {
+    pub(super) fn is_intent(&self) -> bool {
         match self {
             Self::PreparedLower(ownership) => ownership
                 .lease_state
@@ -58,7 +65,7 @@ impl ParticipantOwnership {
         }
     }
 
-    fn is_release_intent(&self) -> bool {
+    pub(super) fn is_release_intent(&self) -> bool {
         match self {
             Self::PreparedLower(ownership) => ownership
                 .lease_state
@@ -67,7 +74,11 @@ impl ParticipantOwnership {
         }
     }
 
-    fn is_active_for(&self, state: ParticipantState, generation_id: GenerationId) -> bool {
+    pub(super) fn is_active_for(
+        &self,
+        state: ParticipantState,
+        generation_id: GenerationId,
+    ) -> bool {
         match (self, state) {
             (Self::PreparedLower(ownership), ParticipantState::LeaseHeld) => {
                 ownership.is_lease_held()
@@ -84,7 +95,7 @@ impl ParticipantOwnership {
         }
     }
 
-    fn cleared(&self) -> Self {
+    pub(super) fn cleared(&self) -> Self {
         Self::empty(self.role())
     }
 
@@ -564,7 +575,7 @@ impl PublicationOwnership {
     }
 }
 
-fn validate_participant_progress(
+pub(super) fn validate_participant_progress(
     old: Option<&ParticipantOwnership>,
     next: Option<&ParticipantOwnership>,
 ) -> Result<(), RecordTransitionError> {
@@ -577,7 +588,7 @@ fn validate_participant_progress(
     }
 }
 
-fn validate_participant_release(
+pub(super) fn validate_participant_release(
     old: Option<&ParticipantOwnership>,
     next: Option<&ParticipantOwnership>,
 ) -> Result<(), RecordTransitionError> {
@@ -587,7 +598,7 @@ fn validate_participant_release(
     }
 }
 
-fn validate_participant_activation(
+pub(super) fn validate_participant_activation(
     old: Option<&ParticipantOwnership>,
     next: Option<&ParticipantOwnership>,
 ) -> Result<(), RecordTransitionError> {
@@ -613,7 +624,7 @@ fn validate_prepared_lower_lease_progress(
     }
 }
 
-fn validate_option_progress<T: Eq>(
+pub(super) fn validate_option_progress<T: Eq>(
     old: Option<&T>,
     next: Option<&T>,
 ) -> Result<(), RecordTransitionError> {
@@ -625,7 +636,7 @@ fn validate_option_progress<T: Eq>(
     }
 }
 
-fn validate_process_progress(
+pub(super) fn validate_process_progress(
     old: &PersistedHostProcessOwnership,
     next: &PersistedHostProcessOwnership,
 ) -> Result<(), RecordTransitionError> {
@@ -661,7 +672,7 @@ fn validate_process_progress(
     }
 }
 
-fn validate_existing_process_progress(
+pub(super) fn validate_existing_process_progress(
     old: &PersistedHostProcessOwnership,
     next: &PersistedHostProcessOwnership,
 ) -> Result<(), RecordTransitionError> {

crates/lazaret-core/tests/configuration.rs

@@ -30,7 +30,11 @@ struct TestTree(PathBuf);
 impl TestTree {
     fn new() -> Self {
         let sequence = NEXT_TREE.fetch_add(1, Ordering::Relaxed);
-        let path = std::env::temp_dir().join(format!(
+        let parent = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+            .join("../../target/test-artifacts/configuration");
+        fs::create_dir_all(&parent).unwrap();
+        let parent = parent.canonicalize().unwrap();
+        let path = parent.join(format!(
             "lazaret-configuration-{}-{sequence}",
             std::process::id()
         ));

crates/lazaret-host-coordinator/src/cold_start.rs

@@ -420,6 +420,17 @@ fn require_inputs(inputs: &ColdStartInputs<'_>) -> Result<(), ColdStartError> {
     Ok(())
 }
 
-include!("cold_start/git_routing.rs");
+mod git_routing;
-include!("cold_start/runtime_staging.rs");
+mod runtime_staging;
-include!("cold_start/tests.rs");
+
+use git_routing::GitRoutingLayout;
+#[cfg(test)]
+use git_routing::parse_global_excludes_path;
+pub(crate) use runtime_staging::RuntimeStaging;
+use runtime_staging::{
+    FileIdentity, confined_resolve_flags, hex, host_path, open_or_create_private_directory,
+    remove_staging_directory, require_private_file,
+};
+
+#[cfg(test)]
+mod tests;

crates/lazaret-host-coordinator/src/cold_start/git_routing.rs

@@ -1,11 +1,20 @@
-struct GitRoutingLayout {
+use super::{
+    AtFlags, ColdStartError, ContainerId, File, FileIdentity, HostPath, Mode, OFlags, OsString,
+    OsStringExt, OwnedFd, Path, PathBuf, PipeFlags, Read, ResolveFlags,
+    ResolvedDomainConfiguration, RuntimeGitRoutingAuthority, RuntimeGitRoutingLaunch,
+    TargetCommand, child_broker, confined_resolve_flags, failure, fchmod, git_common_directory,
+    hex, host_path, open_or_create_private_directory, openat2, pipe_with, remove_staging_directory,
+    require_private_file, statat,
+};
+
+pub(super) struct GitRoutingLayout {
     _runtime_directory: RuntimeGitRoutingDirectory,
     workspace: File,
     workspace_label: PathBuf,
     isolated: File,
     isolated_label: PathBuf,
     mountpoint: File,
-    mountpoint_label: PathBuf,
+    pub(super) mountpoint_label: PathBuf,
     git_common: File,
     git_common_label: PathBuf,
     transient_hooks: File,
@@ -17,7 +26,7 @@ struct GitRoutingLayout {
 }
 
 impl GitRoutingLayout {
-    fn create(
+    pub(super) fn create(
         configuration: &ResolvedDomainConfiguration,
         container_id: ContainerId,
         invoking_uid: u32,
@@ -122,7 +131,7 @@ impl GitRoutingLayout {
         }))
     }
 
-    fn launch_authority(
+    pub(super) fn launch_authority(
         &self,
         configuration: &ResolvedDomainConfiguration,
     ) -> Result<RuntimeGitRoutingLaunch, ColdStartError> {
@@ -148,7 +157,7 @@ impl GitRoutingLayout {
         .map_err(failure)
     }
 
-    fn mountpoint(&self) -> HostPath {
+    pub(super) fn mountpoint(&self) -> HostPath {
         HostPath::new(
             self.mountpoint_label
                 .as_os_str()
@@ -157,11 +166,11 @@ impl GitRoutingLayout {
         )
     }
 
-    fn host_root(&self) -> HostPath {
+    pub(super) fn host_root(&self) -> HostPath {
         HostPath::new(self.workspace_label.as_os_str().as_encoded_bytes().to_vec())
     }
 
-    fn isolated_root(&self) -> HostPath {
+    pub(super) fn isolated_root(&self) -> HostPath {
         HostPath::new(self.isolated_label.as_os_str().as_encoded_bytes().to_vec())
     }
 }
@@ -212,7 +221,7 @@ fn global_excludes_path(workspace: &Path) -> Result<Option<PathBuf>, ColdStartEr
     parse_global_excludes_path(workspace, &output)
 }
 
-fn parse_global_excludes_path(
+pub(super) fn parse_global_excludes_path(
     workspace: &Path,
     output: &[u8],
 ) -> Result<Option<PathBuf>, ColdStartError> {
@@ -242,4 +251,3 @@ fn default_global_excludes_path() -> Option<PathBuf> {
         })
         .map(|home| home.join("git/ignore"))
 }
-

crates/lazaret-host-coordinator/src/cold_start/runtime_staging.rs

@@ -1,3 +1,10 @@
+use super::{
+    AsFd, AtFlags, ColdStartError, ConfinedPathPlan, ContainerId, File, FileExt, FileType, Mode,
+    MountIdentity, OFlags, OsStr, OsString, OsStringExt, OwnedFd, PathBuf, PermissionsExt, RawDir,
+    RegularFileMailbox, ResolveFlags, Write, failure, fchmod, fstat, mkdirat, mount_identity,
+    openat2, statat, unlinkat,
+};
+
 pub(crate) struct RuntimeStaging {
     runsc_root: OwnedFd,
     bundles: OwnedFd,
@@ -60,7 +67,7 @@ impl RuntimeStaging {
         Ok((credentials, requests, results))
     }
 
-    fn create(
+    pub(crate) fn create(
         runtime_domain: &ConfinedPathPlan,
         container_id: ContainerId,
         escalation_client: &File,
@@ -145,7 +152,7 @@ impl RuntimeStaging {
         Ok(())
     }
 
-    fn write_bundle(&self, bytes: &[u8]) -> Result<(), ColdStartError> {
+    pub(crate) fn write_bundle(&self, bytes: &[u8]) -> Result<(), ColdStartError> {
         let descriptor = openat2(
             &self.bundle,
             "config.json",
@@ -208,13 +215,13 @@ fn require_executable_regular_file(source: &File, label: &str) -> Result<(), Col
 }
 
 #[derive(Clone, Copy)]
-struct FileIdentity {
+pub(super) struct FileIdentity {
     device: u64,
     inode: u64,
 }
 
 impl FileIdentity {
-    fn capture(descriptor: impl AsFd) -> Result<Self, ColdStartError> {
+    pub(super) fn capture(descriptor: impl AsFd) -> Result<Self, ColdStartError> {
         let metadata = fstat(descriptor).map_err(failure)?;
         Ok(Self {
             device: metadata.st_dev,
@@ -250,7 +257,7 @@ impl Drop for RuntimeStaging {
     }
 }
 
-fn open_or_create_private_directory(
+pub(super) fn open_or_create_private_directory(
     parent: impl AsFd,
     name: impl AsRef<std::ffi::OsStr>,
     invoking_uid: u32,
@@ -293,7 +300,7 @@ fn require_private_directory(
     Ok(())
 }
 
-fn require_private_file(
+pub(super) fn require_private_file(
     descriptor: impl AsFd,
     invoking_uid: u32,
     mode: u32,
@@ -311,7 +318,7 @@ fn require_private_file(
     Ok(())
 }
 
-fn remove_staging_directory(
+pub(super) fn remove_staging_directory(
     parent: impl AsFd,
     name: &std::ffi::OsStr,
     directory: impl AsFd,
@@ -369,18 +376,18 @@ fn remove_children(directory: impl AsFd) -> std::io::Result<()> {
     Ok(())
 }
 
-fn confined_resolve_flags() -> ResolveFlags {
+pub(super) fn confined_resolve_flags() -> ResolveFlags {
     ResolveFlags::BENEATH
         | ResolveFlags::NO_MAGICLINKS
         | ResolveFlags::NO_SYMLINKS
         | ResolveFlags::NO_XDEV
 }
 
-fn host_path(bytes: &[u8]) -> PathBuf {
+pub(super) fn host_path(bytes: &[u8]) -> PathBuf {
     PathBuf::from(OsString::from_vec(bytes.to_vec()))
 }
 
-fn hex(bytes: &[u8]) -> String {
+pub(super) fn hex(bytes: &[u8]) -> String {
     use std::fmt::Write as _;
 
     bytes.iter().fold(String::new(), |mut output, byte| {
@@ -388,4 +395,3 @@ fn hex(bytes: &[u8]) -> String {
         output
     })
 }
-

crates/lazaret-host-coordinator/src/cold_start/tests.rs

@@ -1,29 +1,27 @@
-#[cfg(test)]
+use std::fs::File;
-mod tests {
+use std::os::fd::OwnedFd;
-    use std::fs::File;
-    use std::os::fd::OwnedFd;
 
-    use rustix::pipe::{PipeFlags, pipe_with};
+use rustix::pipe::{PipeFlags, pipe_with};
 
-    use super::BootstrapOwnerGuard;
+use super::BootstrapOwnerGuard;
 
-    #[test]
+#[test]
-    fn bootstrap_owner_guard_tracks_the_exact_inherited_pipe() {
+fn bootstrap_owner_guard_tracks_the_exact_inherited_pipe() {
     let (reader, writer) = pipe_with(PipeFlags::CLOEXEC).unwrap();
     let guard = BootstrapOwnerGuard::from_inherited(reader).unwrap();
     assert!(guard.is_live().unwrap());
     drop(writer);
     assert!(!guard.is_live().unwrap());
-    }
+}
 
-    #[test]
+#[test]
-    fn bootstrap_owner_guard_refuses_non_pipe_authority() {
+fn bootstrap_owner_guard_refuses_non_pipe_authority() {
     let descriptor: OwnedFd = File::open("/dev/null").unwrap().into();
     assert!(BootstrapOwnerGuard::from_inherited(descriptor).is_err());
-    }
+}
 
-    #[test]
+#[test]
-    fn repository_relative_global_excludes_are_workspace_relative() {
+fn repository_relative_global_excludes_are_workspace_relative() {
     let root = tempfile::tempdir().unwrap();
     let workspace = root.path().join("workspace");
 
@@ -32,5 +30,4 @@ mod tests {
         Some(workspace.join("policy/ignore"))
     );
     assert!(super::parse_global_excludes_path(&workspace, b"bad\0path\n").is_err());
-    }
 }

crates/lazaret-host-coordinator/src/control.rs

@@ -649,7 +649,26 @@ impl SessionLifecycleAdapter for Arc<SessionRegistry> {
     }
 }
 
-include!("control/execution.rs");
+mod execution;
-include!("control/staging.rs");
+mod publication;
-include!("control/publication.rs");
+mod staging;
-include!("control/tests.rs");
+
+pub(crate) use execution::AcceptedControlConnection;
+use execution::{ControlPaths, ExecutionUnavailable, InteractiveExecutionUnavailable};
+pub use execution::{
+    InteractiveControlSession, InteractiveSessionExecutor, NonInteractiveSessionExecutor,
+    PublishedControlFace, RunscNonInteractiveExecutor,
+};
+#[cfg(test)]
+use execution::{NonInteractiveCommandRunner, hex_lower};
+#[cfg(test)]
+use publication::require_peer_uid;
+use publication::{
+    certificate_digest, enrollment_binding, is_live_session, leaf_parameters, random_signing_key,
+    remove_if_identity_matches, sha256, short_identity,
+};
+pub use staging::StagedControlFace;
+use staging::publication_recovery_ownership;
+
+#[cfg(test)]
+mod tests;

crates/lazaret-host-coordinator/src/control/execution.rs

@@ -1,15 +1,26 @@
-struct ControlPaths {
+use super::{
-    root: PathBuf,
+    Arc, AsFd, CONTROL_SOCKET_NAME, ContainerId, ControlError, File, FileIdentity,
-    root_file: File,
+    InteractiveSessionBatch, InteractiveSessionEvent, InteractiveSessionRequest, MetadataExt, Mode,
-    root_identity: FileIdentity,
+    NonInteractiveSessionMessage, NonInteractiveSessionRequest, OFlags, OpenOptions, OsStr,
-    socket: PathBuf,
+    OsString, OsStringExt, PUBLICATION_IDENTITY_NAME, Path, PathBuf, ProcessExit,
-    identity: PathBuf,
+    ProtocolPublicationIdentity, Read, RunscCommand, STAGED_CONTROL_SOCKET_NAME,
-    staged_socket: PathBuf,
+    STAGED_PUBLICATION_IDENTITY_NAME, ServerConfig, SessionExit, SessionId, SessionRegistry,
-    staged_identity: PathBuf,
+    TargetCommand, TrustAnchor, Write, child_broker, fchmod, fmt, io, openat,
+    remove_if_identity_matches,
+};
+
+pub(super) struct ControlPaths {
+    pub(super) root: PathBuf,
+    pub(super) root_file: File,
+    pub(super) root_identity: FileIdentity,
+    pub(super) socket: PathBuf,
+    pub(super) identity: PathBuf,
+    pub(super) staged_socket: PathBuf,
+    pub(super) staged_identity: PathBuf,
 }
 
 impl ControlPaths {
-    fn open(root: &Path, uid: u32) -> Result<Self, ControlError> {
+    pub(super) fn open(root: &Path, uid: u32) -> Result<Self, ControlError> {
         if !root.is_absolute() {
             return Err(ControlError::InvalidPath(
                 "runtime Domain root is not absolute",
@@ -43,7 +54,7 @@ impl ControlPaths {
         })
     }
 
-    fn validate_root(&self, uid: u32) -> Result<(), ControlError> {
+    pub(super) fn validate_root(&self, uid: u32) -> Result<(), ControlError> {
         let descriptor = self.root_file.metadata()?;
         let current = std::fs::symlink_metadata(&self.root)?;
         if FileIdentity::from_metadata(&descriptor) != self.root_identity
@@ -57,7 +68,7 @@ impl ControlPaths {
         Ok(())
     }
 
-    fn create_named_identity(
+    pub(super) fn create_named_identity(
         &self,
         name: &str,
         bytes: &[u8],
@@ -90,7 +101,7 @@ impl ControlPaths {
         Ok((file, identity))
     }
 
-    fn validate_identity(
+    pub(super) fn validate_identity(
         &self,
         file: &File,
         expected: FileIdentity,
@@ -100,7 +111,7 @@ impl ControlPaths {
         self.validate_identity_at(&self.identity, file, expected, uid, expected_length)
     }
 
-    fn validate_identity_at(
+    pub(super) fn validate_identity_at(
         &self,
         path: &Path,
         file: &File,
@@ -131,23 +142,23 @@ impl ControlPaths {
 }
 
 pub struct PublishedControlFace {
-    listener: std::os::unix::net::UnixListener,
+    pub(super) listener: std::os::unix::net::UnixListener,
-    paths: ControlPaths,
+    pub(super) paths: ControlPaths,
-    socket_identity: FileIdentity,
+    pub(super) socket_identity: FileIdentity,
-    identity_file: File,
+    pub(super) identity_file: File,
-    identity_file_identity: FileIdentity,
+    pub(super) identity_file_identity: FileIdentity,
-    publication_identity: ProtocolPublicationIdentity,
+    pub(super) publication_identity: ProtocolPublicationIdentity,
-    publication_bytes: Vec<u8>,
+    pub(super) publication_bytes: Vec<u8>,
-    uid: u32,
+    pub(super) uid: u32,
-    anchor: TrustAnchor,
+    pub(super) anchor: TrustAnchor,
-    server_config: Arc<ServerConfig>,
+    pub(super) server_config: Arc<ServerConfig>,
-    registry: Arc<SessionRegistry>,
+    pub(super) registry: Arc<SessionRegistry>,
-    executor: Arc<dyn NonInteractiveSessionExecutor>,
+    pub(super) executor: Arc<dyn NonInteractiveSessionExecutor>,
-    interactive_executor: Arc<dyn InteractiveSessionExecutor>,
+    pub(super) interactive_executor: Arc<dyn InteractiveSessionExecutor>,
 }
 
 pub(crate) struct AcceptedControlConnection {
-    socket: std::os::unix::net::UnixStream,
+    pub(super) socket: std::os::unix::net::UnixStream,
 }
 
 impl AcceptedControlConnection {
@@ -166,7 +177,7 @@ pub trait NonInteractiveSessionExecutor: Send + Sync {
     ) -> Result<SessionExit, ControlError>;
 }
 
-struct ExecutionUnavailable;
+pub(super) struct ExecutionUnavailable;
 
 impl NonInteractiveSessionExecutor for ExecutionUnavailable {
     fn execute(
@@ -196,7 +207,7 @@ pub trait InteractiveSessionExecutor: Send + Sync {
     ) -> Result<Box<dyn InteractiveControlSession>, ControlError>;
 }
 
-struct InteractiveExecutionUnavailable;
+pub(super) struct InteractiveExecutionUnavailable;
 
 impl InteractiveSessionExecutor for InteractiveExecutionUnavailable {
     fn start(
@@ -208,13 +219,13 @@ impl InteractiveSessionExecutor for InteractiveExecutionUnavailable {
 }
 
 pub struct RunscNonInteractiveExecutor {
-    program: OsString,
+    pub(super) program: OsString,
-    global_arguments: Vec<OsString>,
+    pub(super) global_arguments: Vec<OsString>,
-    container: OsString,
+    pub(super) container: OsString,
-    runner: Arc<dyn NonInteractiveCommandRunner>,
+    pub(super) runner: Arc<dyn NonInteractiveCommandRunner>,
 }
 
-trait NonInteractiveCommandRunner: Send + Sync {
+pub(super) trait NonInteractiveCommandRunner: Send + Sync {
     fn run(
         &self,
         target: &TargetCommand,
@@ -343,7 +354,7 @@ fn emit_available(
     }
 }
 
-fn hex_lower(bytes: &[u8]) -> String {
+pub(super) fn hex_lower(bytes: &[u8]) -> String {
     use fmt::Write as _;
 
     bytes.iter().fold(String::new(), |mut output, byte| {
@@ -351,4 +362,3 @@ fn hex_lower(bytes: &[u8]) -> String {
         output
     })
 }
-

crates/lazaret-host-coordinator/src/control/publication.rs

@@ -1,3 +1,20 @@
+use super::{
+    AcceptedControlConnection, Arc, AsFd, AsRawFd, CONTROL_ALPN, CONTROL_SOCKET_NAME,
+    CertificateDigest, CertificateParams, ClientConfig, ClientConnection, ClientEnrollmentResponse,
+    ClientId, ConfinedPathPlan, ControlClient, ControlError, ControlPaths, ControlRequest,
+    ControlResponse, ControlSessionAdmission, Digest, DistinguishedName, DnType, Duration,
+    ExecutionUnavailable, ExtendedKeyUsagePurpose, File, FileExt, FileIdentity, FileTypeExt,
+    GenerationIdentity, HostCoordinatorDomainStore, InteractiveSessionBatch,
+    InteractiveSessionEvent, InteractiveSessionExecutor, InteractiveSessionMessage, IsCa,
+    KeyUsagePurpose, MAX_CONTROL_BYTES, MAX_ENROLLMENT_BYTES, MetadataExt, Mode,
+    NonInteractiveSessionExecutor, NonInteractiveSessionMessage, OFlags, OffsetDateTime,
+    PUBLICATION_IDENTITY_NAME, Path, PathBuf, PrivateKeyDer, ProtocolPublicationIdentity,
+    ProtocolVersion, PublicationOwnership, PublishedControlFace, Read, ServerConnection,
+    SessionBinding, SessionId, SessionPhase, SessionRegistrationResponse, SessionRegistry, Sha256,
+    SigningKey, StagedControlFace, TlsCredential, TrustAnchor, Write, decode, encode, fmt, io,
+    issue_session_capability, openat, publication_recovery_ownership, socket_peercred,
+};
+
 impl PublishedControlFace {
     pub(crate) fn recovery_ownership(&self) -> Result<PublicationOwnership, ControlError> {
         publication_recovery_ownership(&self.paths)
@@ -511,9 +528,7 @@ impl PublishedControlFace {
     /// # Errors
     /// Returns framing, size, decoding, or TLS I/O failures.
     pub fn receive<
-        Response: lazaret_core::records::SchemaType
+        Response: lazaret_core::records::SchemaType + serde::de::DeserializeOwned + serde::Serialize,
-            + serde::de::DeserializeOwned
-            + serde::Serialize,
     >(
         stream: &mut impl Read,
     ) -> Result<Response, ControlError> {
@@ -552,7 +567,7 @@ fn remove_exact_if_identity_matches(
     }
 }
 
-fn remove_if_identity_matches(path: &Path, expected: FileIdentity) {
+pub(super) fn remove_if_identity_matches(path: &Path, expected: FileIdentity) {
     if std::fs::symlink_metadata(path)
         .ok()
         .is_some_and(|metadata| FileIdentity::from_metadata(&metadata) == expected)
@@ -632,7 +647,7 @@ fn require_interactive_batch(
     Ok(())
 }
 
-fn leaf_parameters(
+pub(super) fn leaf_parameters(
     common_name: &str,
     usage: ExtendedKeyUsagePurpose,
     now: OffsetDateTime,
@@ -650,13 +665,13 @@ fn leaf_parameters(
     Ok(params)
 }
 
-fn random_signing_key() -> Result<SigningKey, ControlError> {
+pub(super) fn random_signing_key() -> Result<SigningKey, ControlError> {
     let mut bytes = [0_u8; 32];
     getrandom::fill(&mut bytes).map_err(|_| ControlError::InvalidCertificateProfile)?;
     Ok(SigningKey::from_bytes(&bytes))
 }
 
-fn enrollment_binding(
+pub(super) fn enrollment_binding(
     generation_identity: &GenerationIdentity,
     cli_id: ClientId,
 ) -> Result<String, ControlError> {
@@ -664,15 +679,15 @@ fn enrollment_binding(
         .map_err(ControlError::from)
 }
 
-fn certificate_digest(certificate: impl AsRef<[u8]>) -> CertificateDigest {
+pub(super) fn certificate_digest(certificate: impl AsRef<[u8]>) -> CertificateDigest {
     CertificateDigest::new(sha256(certificate.as_ref()))
 }
 
-fn sha256(bytes: &[u8]) -> [u8; 32] {
+pub(super) fn sha256(bytes: &[u8]) -> [u8; 32] {
     Sha256::digest(bytes).into()
 }
 
-fn short_identity(bytes: &[u8; 32]) -> String {
+pub(super) fn short_identity(bytes: &[u8; 32]) -> String {
     hex(&bytes[..8])
 }
 
@@ -685,7 +700,7 @@ fn hex(bytes: &[u8]) -> String {
     encoded
 }
 
-fn require_peer_uid(actual: u32, expected: u32) -> Result<(), ControlError> {
+pub(super) fn require_peer_uid(actual: u32, expected: u32) -> Result<(), ControlError> {
     if actual == expected {
         Ok(())
     } else {
@@ -693,7 +708,7 @@ fn require_peer_uid(actual: u32, expected: u32) -> Result<(), ControlError> {
     }
 }
 
-fn is_live_session(phase: SessionPhase) -> bool {
+pub(super) fn is_live_session(phase: SessionPhase) -> bool {
     matches!(
         phase,
         SessionPhase::Registering
@@ -704,9 +719,7 @@ fn is_live_session(phase: SessionPhase) -> bool {
 }
 
 fn read_frame<
-    Record: lazaret_core::records::SchemaType
+    Record: lazaret_core::records::SchemaType + serde::de::DeserializeOwned + serde::Serialize,
-        + serde::de::DeserializeOwned
-        + serde::Serialize,
 >(
     reader: &mut impl Read,
     maximum: usize,

crates/lazaret-host-coordinator/src/control/staging.rs

@@ -1,3 +1,13 @@
+use super::{
+    Arc, CONTROL_SOCKET_NAME, ControlError, ControlPaths, DeviceId, ExecutionUnavailable, File,
+    FileIdentity, FileTypeExt, HostPath, InodeId, InteractiveExecutionUnavailable,
+    InteractiveSessionExecutor, MetadataExt, MountIdentity, NonInteractiveSessionExecutor,
+    PUBLICATION_IDENTITY_NAME, Path, PermissionsExt, ProtocolPublicationIdentity,
+    PublicationOwnership, PublishedControlFace, STAGED_CONTROL_SOCKET_NAME,
+    STAGED_PUBLICATION_IDENTITY_NAME, ServerConfig, SessionRegistry, TrustAnchor, encode,
+    mount_identity, remove_if_identity_matches,
+};
+
 pub struct StagedControlFace {
     listener: Option<std::os::unix::net::UnixListener>,
     paths: ControlPaths,
@@ -194,7 +204,7 @@ impl Drop for StagedControlFace {
     }
 }
 
-fn publication_recovery_ownership(
+pub(super) fn publication_recovery_ownership(
     paths: &ControlPaths,
 ) -> Result<PublicationOwnership, ControlError> {
     let socket_path = if paths.staged_socket.exists() {
@@ -233,4 +243,3 @@ fn publication_path_identity(
         inode: InodeId::new(metadata.ino()),
     })
 }
-

crates/lazaret-host-coordinator/src/control/tests.rs

@@ -1,17 +1,15 @@
-#[cfg(test)]
+use std::ffi::OsString;
-mod tests {
+use std::sync::Arc;
-    use std::ffi::OsString;
+use std::thread;
-    use std::sync::Arc;
-    use std::thread;
 
-    use lazaret_core::identity::{
+use lazaret_core::identity::{
     ConfigurationFingerprint, CoordinatorId, DomainId, GenerationId, SandboxId,
-    };
+};
-    use rustls::pki_types::{CertificateDer, PrivateKeyDer, PrivatePkcs8KeyDer, ServerName};
+use rustls::pki_types::{CertificateDer, PrivateKeyDer, PrivatePkcs8KeyDer, ServerName};
 
-    use super::*;
+use super::*;
 
-    fn generation() -> GenerationIdentity {
+fn generation() -> GenerationIdentity {
     GenerationIdentity {
         agent_profile: "trusted".into(),
         domain_id: DomainId::new([1; 32]),
@@ -20,13 +18,13 @@ mod tests {
         coordinator_id: CoordinatorId::new([3; 32]),
         sandbox_id: SandboxId::new([4; 32]),
     }
-    }
+}
 
-    fn client_config_with_certificate(
+fn client_config_with_certificate(
     anchor: &TrustAnchor,
     certificate: CertificateDer<'static>,
     private_key: PrivatePkcs8KeyDer<'static>,
-    ) -> ClientConfig {
+) -> ClientConfig {
     let mut roots = RootCertStore::empty();
     roots.add(anchor.tls_ca_der.clone()).unwrap();
     let mut config = ClientConfig::builder_with_protocol_versions(&[&rustls::version::TLS13])
@@ -36,14 +34,13 @@ mod tests {
     config.alpn_protocols = vec![CONTROL_ALPN.to_vec()];
     config.resumption = rustls::client::Resumption::disabled();
     config
-    }
+}
 
-    fn handshake_pair(
+fn handshake_pair(
     server_config: ServerConfig,
     client_config: ClientConfig,
-    ) -> (Result<(), rustls::Error>, Result<(), rustls::Error>) {
+) -> (Result<(), rustls::Error>, Result<(), rustls::Error>) {
-        let (mut server_socket, mut client_socket) =
+    let (mut server_socket, mut client_socket) = std::os::unix::net::UnixStream::pair().unwrap();
-            std::os::unix::net::UnixStream::pair().unwrap();
     let server = thread::spawn(move || {
         let mut connection = ServerConnection::new(Arc::new(server_config)).unwrap();
         while connection.is_handshaking() {
@@ -67,23 +64,23 @@ mod tests {
         Ok(())
     })();
     (server.join().unwrap(), client)
-    }
+}
 
-    #[test]
+#[test]
-    fn exact_peer_uid_is_required() {
+fn exact_peer_uid_is_required() {
     assert!(require_peer_uid(1_000, 1_000).is_ok());
     assert!(matches!(
         require_peer_uid(1_001, 1_000),
         Err(ControlError::UnauthorizedPeer)
     ));
-    }
+}
 
-    struct RecordingRunner {
+struct RecordingRunner {
     observed: Mutex<Option<(OsString, Vec<OsString>)>>,
     exit: ProcessExit,
-    }
+}
 
-    impl NonInteractiveCommandRunner for RecordingRunner {
+impl NonInteractiveCommandRunner for RecordingRunner {
     fn run(
         &self,
         target: &TargetCommand,
@@ -94,10 +91,10 @@ mod tests {
             Some((target.program().to_owned(), target.arguments().to_vec()));
         Ok(self.exit)
     }
-    }
+}
 
-    #[test]
+#[test]
-    fn runsc_exec_uses_the_command_as_the_first_post_container_argument() {
+fn runsc_exec_uses_the_command_as_the_first_post_container_argument() {
     let runner = Arc::new(RecordingRunner {
         observed: Mutex::new(None),
         exit: ProcessExit {
@@ -142,10 +139,10 @@ mod tests {
             ]
         )
     );
-    }
+}
 
-    #[test]
+#[test]
-    fn rustls_refuses_client_leaf_with_server_role() {
+fn rustls_refuses_client_leaf_with_server_role() {
     let anchor = TrustAnchor::create(generation()).unwrap();
     let key = KeyPair::generate_for(&PKCS_ED25519).unwrap();
     let certificate = leaf_parameters(
@@ -163,10 +160,10 @@ mod tests {
     );
     let (server, client) = handshake_pair(anchor.server_config().unwrap(), client_config);
     assert!(server.is_err() || client.is_err());
-    }
+}
 
-    #[test]
+#[test]
-    fn rustls_refuses_server_leaf_with_client_role() {
+fn rustls_refuses_server_leaf_with_client_role() {
     let anchor = TrustAnchor::create(generation()).unwrap();
     let key = KeyPair::generate_for(&PKCS_ED25519).unwrap();
     let certificate = leaf_parameters(
@@ -177,8 +174,7 @@ mod tests {
     .unwrap()
     .signed_by(&key, &anchor.tls_ca)
     .unwrap();
-        let server_config =
+    let server_config = ServerConfig::builder_with_protocol_versions(&[&rustls::version::TLS13])
-            ServerConfig::builder_with_protocol_versions(&[&rustls::version::TLS13])
         .with_no_client_auth()
         .with_single_cert(
             vec![certificate.der().clone()],
@@ -189,5 +185,4 @@ mod tests {
         PublishedControlFace::client_config(&anchor.publication_identity(), None).unwrap();
     let (server, client) = handshake_pair(server_config, client_config);
     assert!(server.is_err() || client.is_err());
-    }
 }

crates/lazaret-host-coordinator/src/escalation.rs

@@ -986,5 +986,9 @@ impl EscalationCoordinator {
     }
 }
 
-include!("escalation/service.rs");
+mod local_ownership;
-include!("escalation/local_ownership.rs");
+mod service;
+
+pub use local_ownership::LocalExecutionOwnership;
+use local_ownership::{acknowledgment_prefix, validate_executable};
+pub(crate) use service::{EscalationService, EscalationServiceHandle, EscalationServiceInputs};

crates/lazaret-host-coordinator/src/escalation/local_ownership.rs

@@ -1,10 +1,15 @@
-fn acknowledgment_prefix(request_id: RequestId) -> Vec<u8> {
+use super::{
+    AsFd, ExecutionOwnershipRecorder, FileType, Mode, OsStrExt, ProcessOwnershipCommitAck,
+    RequestId, StagedProcessOwnership, acknowledgment_file_name, fstat, io,
+};
+
+pub(super) fn acknowledgment_prefix(request_id: RequestId) -> Vec<u8> {
     let example = acknowledgment_file_name(request_id, 0);
     let bytes = example.as_bytes();
     bytes[..bytes.len() - 26].to_vec()
 }
 
-fn validate_executable(executable: impl AsFd, invoking_uid: u32) -> io::Result<()> {
+pub(super) fn validate_executable(executable: impl AsFd, invoking_uid: u32) -> io::Result<()> {
     let stat = fstat(executable)?;
     let file_type = FileType::from_raw_mode(stat.st_mode);
     let mode = Mode::from_raw_mode(stat.st_mode);