Commit Graph
12 Commits
Author SHA1 Message Date
Adel Zaalouk 472e23f96a fix(proxy): include OPA deny reason in CONNECT 403 response (#2363)
* fix(proxy): include OPA deny reason in CONNECT 403 response

When a CONNECT request was denied by OPA policy, the 403 response
used a generic "not permitted by policy" message for both "endpoint
not in policy" and "endpoint matched but binary didn't match." Users
had no way to distinguish the two without reading supervisor logs.

The OPA policy already computes a detailed deny_reason (e.g.,
"binary '/usr/bin/node' not allowed in policy 'X'") but the proxy
was not including it in the HTTP response.

Now the CONNECT deny response includes a "reason" field with the
OPA deny reason when available. When the reason is empty, the field
is omitted for backward compatibility.

Fixes #2355

Signed-off-by: Adel Zaalouk <azaalouk@redhat.com>

* docs(observability): document optional reason field in CONNECT 403 response

The proxy now includes a reason field in the JSON body of denied
CONNECT responses when the policy engine provides a specific denial
cause. Update the Proxy Error Responses section to show the field
and describe when it is present vs omitted.

Signed-off-by: Adel Zaalouk <azaalouk@redhat.com>

---------

Signed-off-by: Adel Zaalouk <azaalouk@redhat.com>
2026-07-21 16:14:32 +00:00
Derek Carr 5952a5a23f feat(workspace): add workspace resource model with scoping, membershi… (#2243)
* feat(workspace): implement workspace model (Phase 1 of RFC 0011)

Implements workspace and membership model providing hard isolation
boundaries for multi-player OpenShell deployments.

Workspace CRUD with Kubernetes-style Terminating phase for graceful
deletion. All resources scoped by workspace via ObjectMeta. Membership
RPCs for workspace access control. Persistence migration shifts name
uniqueness to (object_type, workspace, name). Provider profiles support
platform and workspace scoping. Service routing uses workspace-prefixed
DNS labels. Inference routes renamed and workspace-scoped with
DeleteInferenceRoute RPC. Python SDK with WorkspaceClient, two-method
list pattern (workspace-scoped and for_all_workspaces), and workspace
parameter on all methods. CLI workspace flags, TUI workspace cycling.
K8s driver filters unmanaged CRs and uses delete preconditions. Podman
driver uses immutable container IDs. Label serialization fixed across
all put_if call sites.

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(cli): delegate sandbox upload command to existing upload function

The standalone `sandbox upload` command reimplemented upload logic
inline with two bugs: it used `Path::exists()` which follows symlinks
(rejecting dangling symlinks), and it ran git-aware filtering on
symlink sources. The `run::sandbox_upload()` function already handles
both cases correctly via `sandbox_upload_plan()`. Replace the inline
logic with a call to the existing function.

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(e2e): shorten sandbox names and fix test compatibility

Shorten the sandbox name in initial_sparse_policy_is_acknowledged_as_loaded
from 'e2e-2159-sparse-enrich' (22 chars) to 'e2e-sparse-enrich' (17 chars)
to comply with MAX_ROUTABLE_NAME_LEN (19 chars).

Also capture stderr in create_keep_with_args so future sandbox creation
failures include the actual CLI error instead of reporting empty output.

Signed-off-by: Derek Carr <decarr@redhat.com>

* test(workspace): add test coverage for workspace CRUD and persistence isolation

Add unit tests for workspace create happy path, get round-trip, get
not-found, get empty-name rejection, already-exists error, and
resolve_workspace not-found. Add persistence test proving cross-workspace
name uniqueness (same name in different workspaces produces separate
records). Add workspace name max-length boundary tests. Fix e2e harness
to include stderr in name-parse-failure error path. Align Python e2e
test_workspace_crud with try/finally pattern. Document provider profile
catalog workspace scoping gap in RFC 0011.

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(examples): update examples for workspace model compatibility

Shorten sandbox names in demo scripts to fit the 19-character
MAX_ROUTABLE_NAME_LEN limit: policy-demo prefix to pd-, multi-agent
notepad derives a short SANDBOX_TAG from the run ID, governance
interceptor uses gs-PID-RANDOM. Update vscode-remote-sandbox.md SSH
host aliases from openshell-{name} to openshell-{name}.{workspace}
format.

Signed-off-by: Derek Carr <decarr@redhat.com>

* feat(sdk): add workspace-scoped client and workspace CRUD

Add WorkspaceScopedClient modeled after kube::Api::namespaced — captures
workspace once and injects it into every sandbox request. Add workspace
CRUD methods (create, get, list, delete) and list_sandboxes_all_workspaces
on OpenShellClient. Extend SandboxRef with workspace field and add
WorkspaceRef type. Include mock tests for all new operations.

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(lint): resolve clippy warnings in workspace test assertions

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(docs): convert indented code blocks to fenced in RFC 0011

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(lint): resolve clippy warnings and apply cargo fmt across workspace

Auto-format with cargo fmt and fix clippy warnings exposed by the
reformat: unnecessary qualifications, map_unwrap_or, identical match
arms, unused variable prefix, dead code annotations, and let-unit-value
in e2e harness.

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(workspace): address workspace scoping issues from review

- Add workspace field to settings JSON output (CLI)
- Skip Podman containers missing workspace label instead of defaulting
  to empty string, matching K8s driver behavior
- Add resource_version to list_by_scope SELECT in both SQLite and
  Postgres backends, with regression test
- Gate PolicyLocalContext proposal/lookup routes on workspace readiness,
  returning 503 when workspace is not yet discovered
- Block sandbox and provider creation in TUI all-workspaces mode
- Clear workspace vectors in TUI reset_sandbox_state

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(workspace): make provider profile catalog workspace-aware

Thread workspace through snapshot_catalog so the
EffectiveProviderProfileCatalog enforces workspace boundaries on both
read and write paths. UserProviderProfileSource now loads platform-scoped
profiles (workspace "") plus the target workspace's profiles, preventing
cross-workspace duplicate profile ID collisions that previously caused
global catalog failures.

Update RFC 0011 to reflect catalog scoping is implemented in Phase 1
rather than deferred to future work.

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(persistence): include workspace column in atomic policy revision INSERT

put_policy_revision_atomic omitted the workspace column from the INSERT
into the objects table in both SQLite and Postgres backends, causing
atomically-written policy revisions to lose their workspace association.
Add workspace field to AtomicPolicyRevisionWrite and thread it through
both backend INSERT statements, matching the non-atomic put_policy_revision
path which already included it.

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(proxy): skip ancestor walk when socket owner is the entrypoint

collect_ancestor_identities walked the entire process tree above the
entrypoint when the connecting process was the entrypoint itself,
SHA256-hashing every ancestor binary (IDE, shell, container runtime).
On dev machines with large binaries in the ancestor chain this exceeded
the 30-second test timeout. When start_pid == stop_pid there are no
intermediate ancestors to verify, so return an empty list immediately.

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(workspace): make provider profile catalog scope-aware

Allow the same profile ID at platform and workspace scopes by
introducing layered catalog entries where workspace profiles shadow
platform profiles. Add source and scope fields to the ProviderProfile
proto and CLI output. Migrate List/Get handlers to the catalog,
fixing divergence with runtime profile resolution.

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(e2e): align podman e2e labels with centralized driver constants

The podman driver moved its container labels to the centralized
openshell.ai/ prefix, but the e2e test harness and cleanup script
still referenced the old openshell.sandbox-* keys, causing the
local_driver_token_restart test to fail on container lookup.

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(e2e): align python profile isolation test with scope-aware catalog

Platform profiles are now visible in workspace listings as fallbacks
per the layered catalog design. Update the assertion to match.

Signed-off-by: Derek Carr <decarr@redhat.com>

* fix(workspace): honor profile_workspace in runtime profile resolution

Runtime profile lookups now consult provider.profile_workspace via
get_type_profile_for_scope. Providers created with --global-profile
(profile_workspace="") resolve to the platform profile even when a
workspace profile shadows the same ID. All 6 runtime call sites
updated; type-only call sites remain scope-agnostic.

Signed-off-by: Derek Carr <decarr@redhat.com>

---------

Signed-off-by: Derek Carr <decarr@redhat.com>
2026-07-21 00:59:18 +00:00
Piotr Mlocek d556748771 feat(supervisor-middleware): add network egress middleware (#2027)
Signed-off-by: Piotr Mlocek <pmlocek@nvidia.com>
2026-07-16 17:47:49 -07:00
Shiju fcc9db3074 refactor(jsonrpc): carry typed inspection errors (#2244)
Signed-off-by: Shiju <shiju@nvidia.com>
2026-07-13 10:17:15 -07:00
Tony Luo 40194f935e fix(network): fail closed when credential placeholders cannot be rewritten (#2162)
* fix(network): fail closed when credential placeholders cannot be rewritten

When the credential rewriter degrades internally, the proxy forwarded the
literal `openshell:resolve:env:<NAME>` placeholder (or its provider alias
marker) to the upstream instead of the resolved secret, leaking the reserved
token on the wire and causing upstream auth failures (#2161).

Two fail-open paths are closed:

- secrets: `rewrite_http_header_block` returned the header block verbatim when
  no `SecretResolver` was available, so the fail-closed marker scan (which ran
  only on the resolved path) never saw the placeholder. It now scans the
  header region for reserved markers even with no resolver and returns
  `UnresolvedPlaceholderError` when one is present. Marker-free traffic still
  passes through unchanged.

- proxy: when TLS was detected on a CONNECT but `tls_state` was `None`
  (ephemeral CA generation or CA file write failed at startup), the handler
  fell back to a raw `copy_bidirectional` tunnel, bypassing credential
  rewrite. Inside the proxy handler `tls_state` is `None` only on CA-init
  failure (`mode != Proxy` never starts the handler, and `tls: skip` is
  handled earlier), so it now refuses the connection with a 503 and a
  High-severity denial event instead of tunneling. The two startup CA-failure
  logs are raised from Medium to High.

Tests: resolver=None with a placeholder in the request line, a header value,
and the provider-alias form now fail closed; marker-free passthrough is
unchanged; the relay integration test asserts the request is rejected before
any byte reaches upstream; and the 503 fail-closed response contract is
locked.

Signed-off-by: Tony Luo <xialuo@nvidia.com>

* fix(network): refuse CONNECT before 200 when TLS termination is unavailable

The fail-closed refusal for a terminating CONNECT with no TLS termination
state (ephemeral CA init failed) was written after the 200 Connection
Established response. Because a CONNECT client only sends its TLS
ClientHello after reading the 200, the peek-based TLS detection is
inherently post-200, so the 503 landed inside the established tunnel and
surfaced to the client as a TLS protocol error rather than a readable
status. An 'allowed CONNECT' event was also logged first.

Move the decision to a pre-200 gate: query_tls_mode resolves purely from
the policy decision + host/port (no peeked bytes), so the route's TLS
treatment is known before the tunnel is acknowledged. When TLS state is
absent and the route is not tls: skip, write the 503 as the first bytes
on the socket, emit the High-severity Denied event, and close. tls: skip
routes tunnel raw exactly as before, and no allowed-CONNECT event is
emitted on the refusal path.

The now-unreachable post-200 branch is kept as defense in depth but no
longer writes an in-tunnel 503; it fails closed by dropping the
connection instead.

Add connection-level regression tests over a real loopback socket: the
gate refuses with HTTP/1.1 503 as the first bytes for a terminating
route, and writes nothing when TLS termination is present or the route is
tls: skip.

Signed-off-by: Tony Luo <xialuo@nvidia.com>

* fix(network): order the CONNECT TLS-unavailable refusal after SSRF

Addresses the gator re-check on #2162.

Ordering: the pre-200 fail-closed refusal ran before SSRF/allowed_ips
validation, so during CA-init failure an internal-address CONNECT got a
503 tls_termination_unavailable instead of the normal 403 ssrf_denied,
weakening operator visibility in degraded state. The SSRF branches now
return validated addresses; the refusal runs after that validation (an
internal address has already been denied with 403) but still before the
upstream connect and before 200 Connection Established. effective_tls_skip
is still resolved up front since the refusal consumes it.

Tests: add connection-level regressions through the real
handle_tcp_connection, driving a CONNECT from a child /bin/bash copy so
the /proc process-identity binding resolves it against a permissive
policy (the hot-swap test's identity pattern). They assert the first
bytes are HTTP/1.1 503 for a terminating route with no TLS state, a 403
(not 503) for an internal address, and no refusal for a tls: skip route.
These are gated to Linux at runtime (evaluate_opa_tcp needs /proc); a
companion test verifies the OPA policy shape (glob allow, tls mode) on
every platform so the precondition is locked where /proc is unavailable.

rest.rs: tighten the fail-closed relay test to assert the forwarded
buffer is_empty() rather than merely lacking the placeholder/secret.

Signed-off-by: Tony Luo <xialuo@nvidia.com>

* test(network): keep the CONNECT handler test client fork-free

The handler regression tests forked cat to read the proxy reply, so the
client socket fd was inherited by a second process with a different
binary. The identity resolver correctly denies that as ambiguous
shared-socket ownership (the same invariant
resolve_process_identity_denies_fork_exec_shared_socket_ambiguity pins),
so the tests exercised the deny path instead of the allow path — and on
busy CI runners the deny-path /proc fallback scan exceeded the test
budget and looked like a hang. The client script now uses only bash
builtins (exec, printf, read -d '') so exactly one process owns the
socket, and the child is left to exit on EOF instead of being killed
mid-read.

Signed-off-by: Tony Luo <xialuo@nvidia.com>

* test(network): drive the CONNECT handler tests with an in-process client

The child-process client (even fork-free) made the handler tests
environment-sensitive: on CI runners with a busy or restricted /proc,
resolving the child's socket ownership degraded into the whole-/proc
fallback scan and a deny, which surfaced as a hang. The client is now an
in-process TcpStream and the test policy allows current_exe(), so
identity resolution binds the socket to the test process itself in the
descendant scan — the same in-process pattern the passing
resolve_process_identity tests rely on.

The tls: skip test additionally asserts that the handler emitted no
DenialEvent at any stage, so it can no longer pass vacuously on a
policy or identity deny. Refusal budgets widened to 30s as a belt for
slow runners; the refusals themselves return in milliseconds.

Signed-off-by: Tony Luo <xialuo@nvidia.com>

* test(core): pin the percent-encoded marker no-resolver fail-closed path

The no-resolver scan already catches the percent-encoded canonical
marker through its decoded pass; this regression pins it: a request
line carrying openshell%3Aresolve%3Aenv%3AKEY with no resolver must
fail closed with UnresolvedPlaceholderError { location: header }.

Signed-off-by: Tony Luo <xialuo@nvidia.com>

---------

Signed-off-by: Tony Luo <xialuo@nvidia.com>
2026-07-11 09:40:36 -07:00
Taylor MutchandSeth Jennings 8eacb4779f feat(kubernetes): add sidecar supervisor topology (#2076)
* feat(kubernetes): add sidecar supervisor topology

Add the Kubernetes sidecar supervisor topology, its Helm/Skaffold configuration, topology documentation, and sidecar e2e matrix coverage. Skip root-only sandbox identity rewriting when process enforcement is network-only so the low-permission sidecar process container can start successfully.

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(supervisor): avoid similar process id names

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(supervisor): avoid similar process id names

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(sandbox): avoid similar proxy id names

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* docs(kubernetes): clarify sidecar topology limits

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(kubernetes): keep sidecar process leaf capless

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(kubernetes): refresh sidecar provider env snapshots

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* test(supervisor): align hot-swap identity regression

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(kubernetes): stage sidecar mtls files before proxy chown

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(kubernetes): simplify sidecar supervisor topology

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* chore(helm): reuse sidecar skaffold values

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(supervisor): avoid similar iptables helper names

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(e2e): harden kube gateway wrapper setup

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(supervisor): avoid nft batch rollback on OCP

Run nftables setup as individual commands so optional conntrack and log expressions can fail without rolling back required table, chain, and reject rules.

Signed-off-by: Seth Jennings <sjenning@redhat.com>
Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(kubernetes): preserve process identity in sidecar topology

Render sidecar pods with a shared process namespace, keep binary-aware network policy enabled, and move Kubernetes sidecar settings under the nested sidecar config table.

Also apply unprivileged Landlock/seccomp setup in NetworkOnly supervisor mode so sidecar topology keeps sandbox child hardening without privileged process setup.

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* refactor(kubernetes): replace sidecar snapshots with control socket

Coordinate sidecar policy and provider bootstrap over a local Unix socket so the process leaf no longer reads policy/provider snapshot files.

Report entrypoint startup through the control channel and keep gateway credentials confined to the network sidecar.

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* feat(kubernetes): support relaxed sidecar network identity

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(sandbox): satisfy sidecar clippy lint

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* refactor(kubernetes): standardize topology naming

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(sandbox): satisfy linux clippy timeout import

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(kubernetes): support kata sidecar on ipv4 pods

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(kubernetes): satisfy linux clippy for sidecar fallback

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* chore(kubernetes): remove stale supervisor topology references

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(kubernetes): enable sidecar binary policy inspection

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(kubernetes): harden sidecar control boundary

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

* fix(kubernetes): couple sidecar supervisor lifecycles

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>

---------

Signed-off-by: Taylor Mutch <taylormutch@gmail.com>
Signed-off-by: Seth Jennings <sjenning@redhat.com>
Co-authored-by: Seth Jennings <sjenning@redhat.com>
2026-07-10 13:01:39 -07:00
Shane Utt 420a855ddc test(supervisor-network): add proxy hostname parser regression tests (#2197)
Add regression coverage for parser differentials in the egress proxy's
CONNECT hostname handling and OPA wildcard policy matching.

Signed-off-by: Shane Utt <shaneutt@linux.com>
2026-07-09 14:34:40 -07:00
krishicksandddurst 7bce1223dc feat(policy): add JSON-RPC and MCP L7 policies (#1865)
Add policy schema, proto, provider profile, OPA, and L7 proxy support for
`protocol: json-rpc` and `protocol: mcp`. Generic JSON-RPC endpoints match
exact method names only, with `method: "*"` as the all-method sentinel;
wildcard/glob methods and params matchers are rejected.

Parse JSON-RPC request bodies and batches in the forward proxy, deny
response-shaped client frames, limit receive-stream GET allowance to MCP
endpoints, and redact params in decision logs. Preserve L7 rule params on the
proto load path so MCP `tools/call` tool filters behave like YAML-loaded
policies.

Add MCP conformance coverage, JSON-RPC L7 e2e coverage, and docs for the new
protocols and current matcher limitations.

Signed-off-by: Kris Hicks <khicks@nvidia.com>
Co-authored-by: ddurst <267424412+ddurst-nvidia@users.noreply.github.com>
2026-06-26 15:52:16 -07:00
Jesse JaggarsandRussell Bryant f569a0ade6 feat(sandbox): proxy-side AWS SigV4 credential signing for CONNECT tunnels (#1638)
Signed-off-by: Jesse Jaggars <jjaggars@redhat.com>
Co-authored-by: Russell Bryant <russell.bryant@gmail.com>
2026-06-26 10:52:24 -07:00
Calum Murray 4b78b442e6 fix(openshell-network-supervisor): gate proxy accept on symlink resolution readiness (#1968)
* fix(openshell-network-supervisor): gate proxy accept on symlink resolution readiness

Signed-off-by: Calum Murray <cmurray@redhat.com>

* fix(openshell-network-supervisor): skip symlink resolution gate when process supervisor is disabled

Signed-off-by: Calum Murray <cmurray@redhat.com>

---------

Signed-off-by: Calum Murray <cmurray@redhat.com>
2026-06-26 09:17:07 -07:00
ddurst-nvidia d64542f69d fix(supervisor-network): block h2c L7 tunnel escape (#1967)
Signed-off-by: ddurst <267424412+ddurst-nvidia@users.noreply.github.com>
2026-06-22 15:48:55 -07:00
rhubenovandEvan Lezar 1ca23bc5c8 refactor(openshell-sandbox): Split sandbox into process and network subcrates. (#1650)
* refactor(sandbox): extract run_networking from run_sandbox

Lifts TLS state generation, network namespace setup, proxy startup,
bypass monitor spawn, and SSH-side proxy URL / netns FD computation
out of run_sandbox into a sibling async fn `run_networking` that
returns a Networking struct. The identity cache moves with it (only
consumed by the proxy). Entrypoint PID allocation moves just above
the call site so it can be passed in.

No behavior changes — same OCSF emits, same async order, same RAII
lifetimes for the proxy and bypass-monitor handles, now held by the
returned Networking value in run_sandbox's frame.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(sandbox): extract run_process and lift netns to run_sandbox

Lifts the post-networking tail of `run_sandbox` (zombie reaper, SSH
server, supervisor session, process spawn, OPA probe, policy poll loop,
denial aggregator, wait/exit) into a sibling async fn `run_process`.

Also moves network namespace creation out of `run_networking` into a new
`create_netns_for_proxy` helper invoked from `run_sandbox`, so
`run_networking` is purely the proxy component (OPA evaluation, TLS
interception, credential injection, inference routing, gRPC control
API). The netns is then borrowed into both `run_networking` and
`run_process`.

No behavior change.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* chore(workspace): scaffold openshell-supervisor-networking and openshell-supervisor-process crates

Add empty placeholder crates that subsequent commits will populate as the
sandbox decomposition proceeds. Both crates compile clean as part of the
workspace and are picked up automatically by the existing
`members = ["crates/*"]` glob.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(core): lift DenialEvent to openshell-core

The DenialEvent struct is emitted by both the proxy/L7 layer (networking-side)
and the bypass monitor (process-side), and crosses the run_networking ->
run_process API boundary. Move it to openshell-core so the eventual
supervisor-networking and supervisor-process crates can both reference it
without depending on each other. DenialAggregator and the channel/flush
helpers stay in openshell-sandbox for now.

A thin `pub use openshell_core::DenialEvent;` re-export from
denial_aggregator.rs keeps every existing `crate::denial_aggregator::DenialEvent`
call site resolving without further edits.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(core): lift normalize_path to openshell-core

Move the lexical path-normalization helper from openshell-policy to
openshell-core::paths so it can be reached from crates that sit below
openshell-policy in the dependency graph. openshell-policy keeps its
existing public API via a `pub use` re-export, so all current call sites
(e.g. openshell-sandbox/src/policy.rs) continue to resolve unchanged.

This is a prerequisite for lifting openshell-sandbox/src/policy.rs into
openshell-core: that file's `From<ProtoFilesystemPolicy>` impl calls
normalize_path, and lifting it as-is would cycle through openshell-policy.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(core): lift SandboxPolicy and friends to openshell-core

Move openshell-sandbox/src/policy.rs (SandboxPolicy, NetworkPolicy,
ProxyPolicy, FilesystemPolicy, LandlockPolicy, ProcessPolicy, NetworkMode,
LandlockCompatibility, plus their Proto* TryFrom/From impls) to
openshell-core/src/policy.rs.

Both prospective supervisor leaves (networking and process) dispatch on
SandboxPolicy. Hosting it in openshell-core lets either leaf reach for it
without depending on the other (or on the future orchestrator).

The From<ProtoFilesystemPolicy> impl now calls the in-crate
openshell_core::paths::normalize_path lifted in the previous commit, which
is what made this move cycle-free.

Update all crate::policy::* call sites in openshell-sandbox to
openshell_core::policy::*.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move child_env from openshell-sandbox

child_env (proxy_env_vars, tls_env_vars) is process-side only — consumed
by process.rs and ssh.rs. With the orchestrator staying in
openshell-sandbox (Shape A), openshell-sandbox depends on the new leaf
crates, so process-only modules can land in
openshell-supervisor-process directly.

Add openshell-supervisor-process as a path dependency of
openshell-sandbox. Update process.rs and ssh.rs to import from
openshell_supervisor_process::child_env.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move skills from openshell-sandbox

Move the static skills installer (and its embedded resource directory)
out of openshell-sandbox into openshell-supervisor-process. The module
is process-side only — invoked once during sandbox start to drop
agent skill files into the workspace — and has no cross-leaf consumers.

Adds miette as a dependency and tempfile as a dev-dependency on
openshell-supervisor-process.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-networking): move mechanistic_mapper from openshell-sandbox

Move the mechanistic mapper (HTTP method/path → operation classifier
that derives policy proposals from connection summaries) out of
openshell-sandbox into openshell-supervisor-networking. Single internal
caller (run_policy_poll_loop in lib.rs) and only depends on
openshell-core + tracing — no cross-leaf entanglement.

First population of the openshell-supervisor-networking crate; adds
openshell-core and tracing as dependencies.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(core): lift procfs to openshell-core

Move procfs (PID lookups, ancestor walking, /proc/net/tcp socket-owner
resolution, file SHA256 hashing) from openshell-sandbox into
openshell-core. The module is consumed cross-leaf — by bypass_monitor
on the process side and by identity / proxy on the networking side —
so it has to sit below both leaves.

Adds tracing, sha2, and hex as dependencies on openshell-core.
Updates the three call sites in openshell-sandbox to import from
openshell_core::procfs.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-networking): move identity from openshell-sandbox

Move BinaryIdentityCache (path → SHA256 cache used to identify the
process behind an outbound connection) from openshell-sandbox into
openshell-supervisor-networking. The cache is consumed only by the
networking-side proxy and the orchestrator; with procfs already in
openshell-core there are no remaining cross-leaf dependencies.

Adds miette as a dependency and tempfile as a dev-dependency on
openshell-supervisor-networking. Adds a Default impl for
BinaryIdentityCache to satisfy clippy::new_without_default now that
the type is publicly exposed across crates.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move agent-proposals flag from openshell-sandbox

Move AGENT_PROPOSALS_ENABLED, agent_proposals_enabled(), and the
test-only ProposalsFlagGuard out of openshell-sandbox into
openshell-supervisor-process::proposals. The flag is read only by the
process-side policy_local route handler and the orchestrator; lifting
it to openshell-core would have made core carry sandbox-owned runtime
state without buying anything.

The test-only ProposalsFlagGuard is still consumed from networking-side
l7/rest tests today (until the wider Q2 OCSF/gRPC injection work lands).
Expose it via a new optional `test-helpers` feature on
openshell-supervisor-process so test crates opt in explicitly without
pulling tokio sync primitives into production builds.

openshell-sandbox keeps its existing crate-private path
(`crate::AGENT_PROPOSALS_ENABLED`, `crate::test_helpers`) via re-exports
so call sites and tests are unchanged.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(core): lift secrets to openshell-core

Move crates/openshell-sandbox/src/secrets.rs to crates/openshell-core/src/secrets.rs so both supervisor leaves can reach SecretResolver and the placeholder helpers without depending on openshell-sandbox.

Add base64 to openshell-core deps (only stdlib + base64 are used). Promote previously pub(crate) constructors and methods on SecretResolver to pub since cross-crate callers (provider_credentials, proxy/L7 tests) now name them across the crate boundary. Update import paths in proxy.rs, l7/{rest,relay,websocket}.rs, and provider_credentials.rs from crate::secrets to openshell_core::secrets.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(core): lift provider_credentials to openshell-core

Move crates/openshell-sandbox/src/provider_credentials.rs to crates/openshell-core/src/provider_credentials.rs. Both supervisor leaves now name ProviderCredentialState in their function signatures (run_networking takes &ProviderCredentialState, run_process takes ProviderCredentialState by value), and under Shape A leaves can't depend on openshell-sandbox, so the type must live in openshell-core.

The orchestrator (run_sandbox in openshell-sandbox) remains the only writer: it constructs ProviderCredentialState::from_environment and the policy poll loop calls install_environment on credential rotation. Both leaves stay pure readers via snapshot()/resolver().

Update import paths in proxy.rs, ssh.rs, and lib.rs from crate::provider_credentials to openshell_core::provider_credentials.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* style: rustfmt import ordering

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(ocsf): move SandboxContext singleton from openshell-sandbox

Move the process-wide OCSF SandboxContext OnceLock + LazyLock fallback + getter from openshell-sandbox/src/lib.rs into a new openshell-ocsf::ctx module. The type already lives in openshell-ocsf, so its singleton lives next to it.

Add openshell_ocsf::ctx::set_ctx() and openshell_ocsf::ctx::ctx(). The orchestrator (run_sandbox) now calls set_ctx during startup. Sandbox keeps a pub(crate) use openshell_ocsf::ctx::ctx as ocsf_ctx; re-export so the 138 existing crate::ocsf_ctx() call sites resolve unchanged.

When the sandbox modules themselves migrate into the leaf crates, they'll import openshell_ocsf::ctx directly and the re-export goes away.

Under Shape A neither leaf can depend on openshell-sandbox; both already depend on openshell-ocsf to construct events, so this adds no new dep edge.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(core): lift grpc_client to openshell-core

Both prospective leaves (supervisor-networking and supervisor-process)
need CachedOpenShellClient, AuthedChannel, and the connect/fetch
helpers. Under Shape A the leaves cannot depend on openshell-sandbox,
so the type has to live below them. openshell-core already pulls in
tonic and miette; this enables tonic's channel/tls features and adds
tokio as a direct dep.

Updates all crate::grpc_client::* call sites in openshell-sandbox to
openshell_core::grpc_client::*. No re-export shim — the call-site
count was small enough to update directly.

See architecture/plans/sandbox-split-design-choices.md for the full
rationale and trade-offs.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-networking): move denial_aggregator from openshell-sandbox

DenialAggregator and FlushableDenialSummary belong with the proxy and L7
layer that emit denials. Moves the file into openshell-supervisor-networking;
adds tokio as a regular dep there since DenialAggregator uses
tokio::sync::mpsc.

Drops the pub use openshell_core::DenialEvent re-export inside the moved
file (no longer needed cross-crate). Updates bypass_monitor.rs, proxy.rs,
and lib.rs to import openshell_core::DenialEvent directly.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move log_push from openshell-sandbox

LogPushLayer is a process-side tracing layer that streams sandbox logs
to the gateway via gRPC. Moves into openshell-supervisor-process; adds
openshell-core, openshell-ocsf, tokio-stream, tracing, and
tracing-subscriber as direct deps there.

Updates the only external call site (openshell-sandbox/src/main.rs) to
import from openshell_supervisor_process::log_push.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move bypass_monitor from openshell-sandbox

bypass_monitor reads /dev/kmsg for nftables drop log lines and emits
denial events. Pure process-side concern, called only from
run_networking which spawns it on the netns. Moves into
openshell-supervisor-process; all deps (openshell-core, openshell-ocsf,
tokio, tracing) were already declared there.

Replaces crate::ocsf_ctx() shim calls inside the moved file with
openshell_ocsf::ctx::ctx() — first leaf-side caller to import the OCSF
context singleton directly instead of going through openshell-sandbox's
re-export.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move debug_rpc from openshell-sandbox

debug_rpc is the CLI subcommand handler that exercises authenticated
gRPC calls (issue-token, refresh-token, get-config, etc.). Pure
process-side concern, called only from openshell-sandbox/main.rs.

Adds base64, hex, serde_json, sha2, and tonic (with channel/tls
features) as direct deps on openshell-supervisor-process. Updates the
single call site in main.rs.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move supervisor_session from openshell-sandbox

supervisor_session opens a bidirectional gRPC stream that lets the
gateway initiate shells inside the sandbox. Pure process-side concern,
called only from run_process. Adds uuid as a direct dep on
openshell-supervisor-process.

Replaces crate::ocsf_ctx() shim calls inside the moved file with
openshell_ocsf::ctx::ctx() — same pattern as bypass_monitor.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): lift managed_children tracker from openshell-sandbox

The MANAGED_CHILDREN set tracks PIDs of supervisor-spawned children
(entrypoint + SSH sessions) so the orchestrator's SIGCHLD reaper can
distinguish them from incidental zombies. Pure process-side concern,
moves to openshell_supervisor_process::managed_children with three
public fns: register, unregister, is_managed.

Updates lib.rs reaper, process.rs, and ssh.rs to call through the new
module path. Drops the now-unused HashSet import from lib.rs.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move sandbox hardening from openshell-sandbox

Lift the process-only hardening pieces (landlock, seccomp, PreparedSandbox,
prepare/enforce, log_sandbox_readiness, top-level apply, and
apply_supervisor_startup_hardening) from crates/openshell-sandbox/src/sandbox/
to crates/openshell-supervisor-process/src/sandbox/.

Leave netns.rs and nft_ruleset.rs in openshell-sandbox for now, since both
eventual leaf crates (supervisor-networking and supervisor-process) read from
NetworkNamespace and its final home is decided when run_networking and
run_process are extracted.

Replace crate::ocsf_ctx() shims in landlock.rs and the new linux/mod.rs with
direct openshell_ocsf::ctx::ctx() calls. Update call sites in lib.rs,
process.rs, and ssh.rs to import sandbox from openshell_supervisor_process
while keeping the netns import unchanged.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(core): lift proposals flag from openshell-supervisor-process

Move proposals.rs (AGENT_PROPOSALS_ENABLED OnceLock + agent_proposals_enabled
reader + test_helpers::ProposalsFlagGuard) from openshell-supervisor-process
to openshell-core so both eventual leaf crates can read it without depending
on each other.

The flag is process-wide singleton state initialised once during sandbox
startup and read by both the policy.local route (networking-side) and the
skills installer (process-side) — same shape as openshell_ocsf::ctx.

Move the test-helpers Cargo feature alongside it: openshell-core gains the
feature, openshell-supervisor-process loses it, and openshell-sandbox's
dev-dependency now enables openshell-core/test-helpers. Update the sandbox
re-export shim to point at openshell_core::proposals.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(core): lift netns + nft_ruleset from openshell-sandbox

Move NetworkNamespace and the nft_ruleset bypass-rule generator from
crates/openshell-sandbox/src/sandbox/linux/ to crates/openshell-core/src/netns/.
Both eventual leaf crates (supervisor-networking and supervisor-process) read
from NetworkNamespace, so it must live somewhere both can depend on without
violating the Shape A no-leaf-to-leaf rule.

Replace crate::ocsf_ctx() shims in netns with direct openshell_ocsf::ctx::ctx()
calls, matching the pattern used in already-migrated process modules. Update
super::nft_ruleset references inside netns to nft_ruleset since the module
is now a sibling sub-module of netns/mod.rs.

Add openshell-ocsf and uuid as linux-only dependencies of openshell-core, and
gate pub mod netns on target_os = "linux" since the implementation uses
netlink, ip(8), and namespace fds. Delete the now-empty sandbox/{mod.rs,
linux/mod.rs} stubs and update NetworkNamespace import paths in lib.rs and
process.rs to point at openshell_core::netns.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move process.rs and ssh.rs from openshell-sandbox

Lift the entrypoint process spawn module and the embedded SSH server
module into openshell-supervisor-process. openshell-sandbox now
re-exports ProcessHandle/ProcessStatus and calls
openshell_supervisor_process::ssh::run_ssh_server directly.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-networking): move proxy, l7, opa, policy_local from openshell-sandbox

Lift the egress proxy, L7 enforcement modules, OPA engine, and policy.local
advisor API into openshell-supervisor-networking. Move accompanying data
files (sandbox-policy.rego), test fixtures (testdata/), and integration
tests (system_inference, websocket_upgrade). Sandbox lib.rs now references
these via openshell_supervisor_networking::* and ProxyHandle::start_with_bind_addr
is exposed as pub for the orchestrator call site.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(sandbox): hoist policy poll loop and denial aggregator into orchestrator

Move the symlink-resolver, policy poll loop, and denial-aggregator flush
spawns out of run_process and into run_sandbox so run_process no longer
needs OpaEngine, retained_proto, the local policy context, the sandbox
name, the gateway endpoint for telemetry, the OCSF flag, or the denial
receiver. These long-running orchestrator-owned tasks now live alongside
the other sandbox-startup wiring, matching the design log decision in
architecture/plans/sandbox-split-design-choices.md (Q5).

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move run_process from openshell-sandbox

Lift the workload supervision entry point (zombie reaper, SSH server
spawn, supervisor session, entrypoint child spawn, exit-with-timeout)
into its own module in openshell-supervisor-process. The orchestrator
in openshell-sandbox now calls openshell_supervisor_process::run::run_process
directly. With this move run_process names only types from openshell-core,
openshell-ocsf, openshell-supervisor-process itself, std, and tokio —
no openshell-supervisor-networking dependency.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-networking): move bypass_monitor from supervisor-process

Bypass detection is network-policy enforcement: it parses nftables LOG
entries from /dev/kmsg and emits OCSF NetworkActivity / DetectionFinding
events plus DenialEvents into the same channel the proxy feeds. Its
lifetime is tied to the network namespace, not to the workload child.
Moving it to openshell-supervisor-networking puts it next to the proxy
and the denial aggregator that consume its output, and unblocks moving
run_networking out of openshell-sandbox without a leaf-to-leaf dep.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-networking): move inference route helpers from openshell-sandbox

Move build_inference_context, partition_routes, bundle_to_resolved_routes,
spawn_route_refresh, the InferenceRouteSource enum, and the route refresh
interval helpers into a new openshell-supervisor-networking::inference_routes
module along with their unit tests. The orchestrator now calls into the
networking leaf for inference context construction; the leaf owns its own
route bundle resolution end-to-end.

The new module is named inference_routes to avoid colliding with the
existing l7::inference module, which handles request-time HTTP parsing
and pattern matching rather than route bundle setup.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-networking): move run_networking from openshell-sandbox

Move the Networking handle struct, run_networking, and the Linux-only
create_netns_for_proxy helper into a new openshell-supervisor-networking::run
module. The orchestrator in openshell-sandbox now invokes
openshell_supervisor_networking::run::{create_netns_for_proxy, run_networking}
and reads the Networking fields directly; the leaf owns the entire
networking-stack startup path (CA generation, proxy task, bypass monitor,
inference context, denial channel) end-to-end.

The Networking RAII handle fields (proxy, bypass_monitor) are now public
without leading underscores so the public API satisfies clippy's
pub_underscore_fields lint while still serving as drop guards held by the
orchestrator's frame.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* fix(workspace): align Cargo deps and call sites for split crates

The recent module lifts left two Linux-only gaps that the macOS host
workspace check skipped:

- openshell-core's netns module needs libc, tempfile, and nix on Linux,
  but only openshell-ocsf and uuid were carried over.
- openshell-supervisor-process's seccomp/landlock modules need landlock
  and seccompiler, which still lived on openshell-sandbox.
- openshell-sandbox's runtime_pid_limit branch referenced an unqualified
  process:: that pointed at the old in-crate module.

Move landlock/seccompiler to supervisor-process, add the missing core
deps, qualify the call sites, and drop sandbox deps that no longer have
runtime users (landlock, seccompiler, target-gated tempfile/uuid, the
unix libc/rustix block).

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-network): rename openshell-supervisor-networking to openshell-supervisor-network

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-network): own denial-aggregator flush end-to-end

Move the denial-aggregator spawn and flush_proposals_to_gateway out of
run_sandbox and into run_networking. The networking leaf already owns
every other input (proxy + bypass_monitor as producers, denial channel,
mechanistic_mapper, denial_aggregator) and already opens its own gRPC
connections (inference_routes, policy_local) — the orchestrator was the
only piece left straddling the boundary.

Networking now drives the full path: producers -> channel -> aggregator
-> flush -> gateway. Drops denial_rx from Networking; adds sandbox_name
to run_networking so SubmitPolicyAnalysis can resolve by sandbox name
(falls back to ID when unset). Same shape as log_push in the process leaf.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-network): own symlink-resolution task

Move the OPA binary-symlink resolver out of run_sandbox and into
run_networking. The task probes /proc/<entrypoint_pid>/root/ until the
workload's mount namespace is accessible, then rebuilds the OPA engine
with resolved binary paths so policy rules match canonical names instead
of symlinks.

Both inputs (Arc<OpaEngine>, retained_proto) are networking-leaf concerns
and were already plumbed into run_networking; the entrypoint_pid Arc is
read lazily after the process leaf populates it. Adds retained_proto as
a parameter and spawns the resolver early in run_networking so the probe
loop starts before the proxy comes up.

Same shape as the denial-flush move: networking owns its own background
task end-to-end; the orchestrator stops hosting work that doesn't
conceptually belong to it.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move seccomp install into run_process

The supervisor seccomp prelude is part of "set up the workload-side
process tree", not part of orchestration. Move the call site from
run_sandbox into the top of run_process and drop the now-unused
re-export from openshell-sandbox::lib.

Timing is preserved: by the time the orchestrator calls run_process,
run_networking has already returned, so netns + nftables setup is
complete.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move check_runtime_pid_limit into run_process

The PID-limit precondition is process-side: it gates whether the workload
child can be spawned at all. Move the call from run_sandbox into the top
of run_process, alongside the seccomp prelude. Same shape as the seccomp
move — function already lives process-side, only the call site relocates.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move validate_sandbox_user to process crate

The sandbox-user check is a precondition for privilege-dropping the
workload child; it has no relevance to networking. Move the function
next to drop_privileges in openshell-supervisor-process::process and
call it from the top of run_process.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move prepare_filesystem to process crate

Creating and chowning read_write directories is workload-side
preparation, not orchestration. Move prepare_filesystem and its
prepare_read_write_path helper (plus tests) into
openshell-supervisor-process::process and call from run_process,
alongside validate_sandbox_user.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-process): move startup skill install into run_process

The eager initial-settings fetch + agent skill install is process-side:
the install materializes files the workload's filesystem sees. The
orchestrator still owns the AGENT_PROPOSALS_ENABLED OnceLock init
because the policy poll loop also reads it; only the early fetch and
install hop into run_process.

Behavior unchanged. Best-effort: any RPC or install failure is logged
but does not fail startup.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-network): own PolicyLocalContext construction

Move the PolicyLocalContext construction from run_sandbox into
run_networking. The orchestrator was building it solely to thread it into
the networking leaf and to share it with the policy poll loop; now
run_networking builds it from inputs it already takes (retained_proto,
openshell_endpoint, sandbox_name|sandbox_id) and exposes it on the
returned Networking struct.

The orchestrator's poll loop now grabs the Arc clone from
networking.policy_local_ctx, so the orchestrator no longer imports
openshell_supervisor_network::policy_local.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* feat(supervisor): add --mode flag to gate network/process leaves

Add a --mode flag (default "network,process") that selects which
supervisor leaves run in the current process. Two new shapes are
unlocked without splitting the binary:

  --mode=network             # network-only sidecar
  --mode=process             # process-only supervisor
  --mode=network,process     # combined (default; current behavior)

In network-only mode the orchestrator skips run_process and waits on
SIGINT/SIGTERM before tearing down the proxy. The entrypoint PID stays
at 0 for the lifetime of the process, which silently degrades the
proxy's binary-identity TOFU and the bypass monitor's PID enrichment;
this is correct in a split-pod topology where the workload's /proc
lives in another pod.

In process-only mode run_networking is skipped entirely. SSH sessions
get no proxy URL, no netns FD, and no CA paths, matching what a
split-pod consumer would expect when network enforcement is delegated
to a sidecar.

The policy poll loop continues to run unconditionally; its OPA-reload
and policy.local hooks already gate on the resources only present when
network is enabled, and the env-refresh / proposals-toggle hooks
remain active in process mode.

Closes a step toward the RFC-0001 supervisor topology proposed in
issue #1305 by drew.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* style(supervisor-process): rustfmt long debug! line

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-network): pull DenialEvent down from core

DenialEvent is only emitted and consumed inside openshell-supervisor-network
(proxy, bypass monitor, denial aggregator). It never crossed the leaf
boundary, so the earlier lift to openshell-core was speculative. Move it
back into the network crate where its only callers live.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-network): pull procfs down from core

procfs was lifted to openshell-core under the assumption it would be
shared cross-leaf, but on the current branch all three callers
(bypass_monitor, identity, proxy) live in openshell-supervisor-network.
No file in openshell-supervisor-process imports it. Move the module to
the network crate and drop sha2/hex from openshell-core, which were
pulled in only for procfs.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* style(supervisor-network): run cargo fmt

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* fix(supervisor-network): add libc dev-dependency for procfs tests

The procfs/bypass_monitor/proxy test modules use libc::{fork, exec,
fcntl, kill, waitpid} but the dep wasn't declared in this crate's
Cargo.toml. It was previously satisfied transitively when these
modules lived in openshell-core; the move left the test target
unable to resolve libc.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(sandbox): move denial aggregator to orchestrator

The denial aggregator and mechanistic mapper consume denial events
produced by the proxy and (subsequently) the bypass monitor. With both
supervisor leaves becoming pure producers of `DenialEvent`, the
consumer-side aggregation belongs in the orchestrator, not in either
leaf.

Move `denial_aggregator.rs` and `mechanistic_mapper.rs` from
`openshell-supervisor-network` to `openshell-sandbox` (the
orchestrator). The orchestrator now owns the unbounded denial channel:
it constructs `(tx, rx)`, hands `tx` to `run_networking` for the proxy
to clone, drains `rx` via the aggregator task, and runs the gateway
flush helper itself.

`run_networking`'s signature gains a `denial_tx` parameter and loses
its internal channel construction, aggregator spawn, and
`flush_proposals_to_gateway` helper. `DenialEvent` stays in
`openshell-supervisor-network` for now; a follow-up commit will lift
it to `openshell-core` alongside the bypass monitor relocation.

* refactor(supervisor-process): pull bypass monitor down from network

`bypass_monitor` is process-isolation machinery: it tails the kernel
log via `dmesg --follow`, parses nftables LOG lines emitted from the
workload's network namespace, resolves PIDs via `/proc`, and emits
OCSF events plus optional `DenialEvent`s. None of this touches the
proxy, OPA, TLS, or any other supervisor-network state — it only
shared the denial channel because both feed the same aggregator.

Move `bypass_monitor.rs` from `openshell-supervisor-network` to
`openshell-supervisor-process` (as `bypass_monitor/mod.rs`). Spawn it
in `run_process` where the netns name and entrypoint PID are already
in scope. The orchestrator hands an extra `bypass_denial_tx` clone of
the denial channel sender to `run_process` for this purpose.

Lift `DenialEvent` from `openshell-supervisor-network` to
`openshell-core`. Both supervisor leaves now produce it, so it needs
a shared location that neither leaf depends on. This reverses an
earlier commit that pulled the type into the network leaf when it was
the only producer.

Copy the minimal subset of `/proc` parsers used by `bypass_monitor`
into a private `bypass_monitor::procfs` submodule. The alternative —
extracting a shared procfs crate — is a much larger refactor that
this commit does not need; supervisor-network's `procfs.rs` continues
to serve the proxy and identity cache.

* refactor(supervisor-process): derive ssh netns fd inside run_process

The ssh_netns_fd was computed in run_networking purely to forward it
through the Networking struct and back into run_process. supervisor-network
never read it. Move the derivation to run_process where the
NetworkNamespace handle is already in scope.

* refactor(supervisor-process): derive ssh proxy url inside run_process

The ssh_proxy_url was computed in run_networking purely to forward it
through the Networking struct and back into run_process. supervisor-network
never read it. Move the derivation to run_process where the
NetworkNamespace handle and SandboxPolicy are already in scope.

After this commit the Networking struct no longer carries any SSH-shaped
fields, and supervisor-network reads only host_ip from the netns (for the
proxy bind address).

* refactor(supervisor-network): take proxy bind ip directly instead of netns

run_networking only ever read host_ip from the netns it was passed (the
SSH plumbing reads moved to run_process in earlier commits). Replace the
NetworkNamespace parameter with a plain Option<IpAddr> the orchestrator
extracts. supervisor-network's run module no longer references the netns
type for any consumer, only for create_netns_for_proxy (which still lives
in this crate; relocates next).

* refactor(supervisor-process): move netns ownership out of core

Relocates the NetworkNamespace handle, nft ruleset builder, and
create_netns_for_proxy constructor into openshell-supervisor-process.
The orchestrator (openshell-sandbox) phantom-owns the RAII handle for
the duration of run_sandbox; supervisor-network no longer references
the type at all.

Drops uuid, libc, nix, openshell-ocsf, and tempfile from core's Linux
target deps (all were exclusive to netns). tempfile becomes a Linux
runtime dep on supervisor-process for nft ruleset application.

* chore(sandbox): prune leaf-only deps from orchestrator manifest

cargo-machete flagged 26 direct dependencies that were carried over
from the pre-split monolith and are no longer used by the orchestrator
itself: regorus, russh, rcgen, tokio-rustls, ipnet, apollo-parser,
openshell-router, anyhow, base64, bytes, flate2, glob, hex, hmac, nix,
rand_core, rustls-pemfile, serde, serde_yml, sha1, sha2, thiserror,
tokio-stream, uuid, webpki-roots.

These now live (transitively) in openshell-supervisor-network and
openshell-supervisor-process where they are actually consumed.

* chore(deps): prune unused deps from supervisor crates

- Drop unused `url` from openshell-supervisor-network.
- Mark `prost` and `prost-types` as cargo-machete-ignored in
  openshell-core: they have no source-level `use`, but the tonic-
  generated proto code references them via `::prost::Message` etc.
- openshell-supervisor-process is already clean.

* fix(supervisor-network): wait for entrypoint PID before symlink probe

The OPA symlink-resolution task reads entrypoint_pid once at the top
of the spawned closure. Because the spawn happens before run_process
publishes the workload PID, the load returns 0, the probe path bakes
in as /proc/0/root/, and the loop exhausts its retries against a path
that does not exist on Linux. The reload never fires, so policies that
whitelist symlinked binaries (e.g. /usr/bin/python3 → python3.11) get
silent denials when the workload exec's the realpath.

Split the wait into two phases: 5s polling entrypoint_pid for a
non-zero value, then the existing 5s window probing /proc/<pid>/root/.
Distinct warn messages on each timeout so future debugging can tell
"PID never published" apart from "container fs never appeared".

* fix(sandbox): restore GPU procfs baseline (#1522)

Signed-off-by: Evan Lezar <elezar@nvidia.com>
(cherry picked from commit 5102cb9413)
Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* fix(supervisor-process): use renamed tonic tls-native-roots feature

Upstream renamed the tonic `tls` feature to `tls-native-roots`. The
supervisor-process Cargo.toml still referenced the old name, which broke
the workspace build after merging upstream.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* refactor(supervisor-network): relocate token_grant and spiffe_endpoint

Upstream's SPIFFE-backed token grant feature landed in
crates/openshell-sandbox/src/. After the supervisor split, the L7
enforcement code in supervisor-network calls into token_grant, which
would require supervisor-network to depend back on sandbox.

Move token_grant.rs and spiffe_endpoint.rs into supervisor-network
where the only callers live, add the reqwest and spiffe deps to
supervisor-network's Cargo.toml, and drop them from sandbox.

Also fix two stale `openshell_core::proto::` self-references in
openshell-core (a pre-existing breakage that surfaced once the rest of
the merge compiled).

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

* fix(supervisor-process): broaden Path import cfg to all unix targets

The `Path` import was gated on `cfg(any(test, target_os = "linux"))`,
but `prepare_read_write_path` is gated on `cfg(unix)` — broader. On
non-Linux unix the function still referenced `&std::path::Path`
explicitly, so upstream's qualified path was load-bearing.

After the supervisor split, lint runs on Linux where `Path` IS in
scope, so `unused_qualifications` fires. Broaden the import cfg to
match the function's cfg and use the bare `Path` name everywhere.

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>

---------

Signed-off-by: Radoslav Hubenov <rrhubenov@gmail.com>
Signed-off-by: Evan Lezar <elezar@nvidia.com>
Co-authored-by: Evan Lezar <elezar@nvidia.com>
2026-06-15 15:16:23 -04:00