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* feat(mxc): ETW->OCSF audit consumer + Windows OCSF JSONL parity (cp6 P1) Add a Windows MXC ETW->OCSF audit trail in openshell-driver-mxc: a real-time Sandboxing-provider ETW consumer that decodes events (TDH), attributes each to an OpenShell sandbox_id, and maps them to OCSF (lifecycle 6002, config 5019, process 1007, finding 2004). cp6 Phase 1 - durable OCSF JSONL audit-file parity with Linux: - openshell-ocsf: add emit_ocsf_event_routed (populates the event-bridge thread-local AND stamps sandbox_id+message in one dispatch) plus public set/clear_current_event; OS-aware device (Device::windows/for_current_os) so device.os.name reflects the host instead of a hardcoded Linux stub. - etw_consumer: emit via the routed emit (previously fired a bare info! that never populated the bridge, so the structured event was dropped). - openshell-server: install OcsfJsonlLayer over a synchronous daily-rotated appender (durable under force-kill), gated by OPENSHELL_OCSF_JSON, path via %PROGRAMDATA%\OpenShell\logs (override OPENSHELL_OCSF_LOG_DIR). - device.hostname now resolves to the real gateway machine name. Box-proven on 7F203-MXC-001: JSONL lines == shorthand OCSF rows, all valid OCSF JSON, per-sandbox attribution intact, disabled state writes nothing. Signed-off-by: Akber Raza <akberr@nvidia.com> * feat(mxc): map remaining Sandboxing ETW events to OCSF Close the last three ETW->OCSF gaps so the audit trail covers the full set of events the Sandboxing provider emits (12/12): - ProcessLaunched -> Process Activity [1007] "Launch" (confirmed start; carries the real processId/threadId, the twin of CreateProcessInSandbox which only has the request + command line). - SandboxProxyConfigured -> Device Config State Change [5019] (the one network-plane setup event; surfaces proxyPort, "no proxy" when 0). - SandboxConsoleReferencePlumbed -> Device Config State Change [5019] (console-handle plumbing). map_config_state now handles the full config/hardening/setup family and carries proxyPort/hasConsoleReference/creationFlags as unmapped fields. Verified on 7F203-MXC-001: 11/12 event types emit OCSF without a proxy (SandboxProxyConfigured requires proxy config to fire). Signed-off-by: Akber Raza <akberr@nvidia.com> * fix(mxc): seed ETW attribution under registry lock + Device tests Address CodeRabbit review on !31: - Prevent stale ETW attribution on a delete/launch race: register the wxc-exec pid while holding the registry lock, and bail if the sandbox entry is already gone. Previously the attribution key could be seeded after `delete` had removed the sandbox, leaving a stale key that could misroute later Sandboxing ETW events to a dead sandbox_id. Lock order (registry -> attribution) matches the delete path, so no deadlock. - Add unit tests for the new Device::windows and Device::for_current_os constructors to harden Windows/Linux OCSF device parity. Signed-off-by: Akber Raza <akberr@nvidia.com> * fix(mxc-etw): buffer+replay racing events and harden attribution keys Addresses two ETW->OCSF attribution review items (Shailendra #1, #2). #2 early-event loss: ETW delivers the sandbox create/config burst the instant wxc-exec starts, which can beat the driver's register_launch (now under the registry lock post-Ready). process_event previously dropped anything unresolved, losing the racing burst. Add a bounded, time-bounded pending buffer (PENDING_MAX=4096, PENDING_TTL=5s): unresolved events are held and replayed once attribution lands, aged-out ones dropped. Consumer switched to a timed recv_timeout(200ms) so the buffer is re-driven after each event and on a tick. Emit path factored into shared emit_resolved(). #1 attribution collisions: a Windows PID is recycled after exit and a command line is commonly identical across sandboxes. register_launch now rebinds by_pid on reuse and clears the stale last_pid_sid hint (warns if the PID still pointed at a different, leaked sandbox); command line is held in by_cmd only while unique and demoted to a new ambiguous_cmds set on a second owner, so a duplicate command refuses to resolve rather than misroute. Unit tests: buffer replay (direct + cross-link), buffer bound, PID-reuse rebind, duplicate-cmd non-resolution. Box-verified on 7F203-MXC-001 (5 sandboxes, identical cmd -> 5 isolated sandbox_ids, 50/50 OCSF/JSONL, BuffersLost=0). Signed-off-by: Akber Raza <akberr@nvidia.com> * docs(mxc-etw): note cmd_line is captured raw with no privacy filtering Review item #3 (Shailendra): add a PRIVACY NOTE on map_process_launch stating cmd_line is copied verbatim into OCSF process.cmd_line with no redaction, so secrets/PII on a command line land unredacted in the durable audit trail (deliberate audit-fidelity trade-off; treat the log as sensitive). Redaction is owned by an upstream privacy layer, not this path; no general audit-output PII scrubber exists today (openshell_core::secrets [CREDENTIAL] redaction is scoped to the proxy HTTP-target logging, a separate egress path). Signed-off-by: Akber Raza <akberr@nvidia.com> * fix(mxc-etw): open ETW trace on caller thread so start_session reports real status Review item #4 (Shailendra): start_session previously returned Ok(EtwSession) as soon as the pump thread was spawned, but OpenTraceW ran later inside that thread; if it failed we still handed back a live-looking session and logged 'consumer started' (silent failure = false audit coverage). Split the two Win32 calls instead of adding a channel handshake (avoids any lost-wakeup/hang risk): the quick, synchronous OpenTraceW now runs on the caller thread (open_trace), and only the blocking ProcessTrace runs on the pump thread (run_trace). start_session returns Err if OpenTraceW fails (reclaiming the boxed Sender so the consumer disconnects, stopping the session, joining the consumer) and returns Ok/logs 'started' only once capture is genuinely open. Opened handle + LoggerName buffer + boxed Sender are carried to the pump via a Send OpenedTrace so they outlive ProcessTrace. Box-verified on 7F203-MXC-001: consumer started=True, failed-to-start=False, 50 OCSF rows / 50 JSONL, BuffersLost=0 (no regression to capture/emit). Signed-off-by: Akber Raza <akberr@nvidia.com> * fix(mxc-etw): guard pending-event replay against PID recycling CodeRabbit flagged that drain_resolved() re-resolved buffered events against the live by_pid map, so if Windows recycled a wxc-exec PID within PENDING_TTL a stale event from the dead sandbox could be emitted under the new owner. Stamp each by_pid registration with its Instant and add resolve_replay(), used only on the buffered/replay path. It (a) never falls back to the recycle-/ambiguity-prone by_cmd or last_pid_sid keys, and (b) trusts a PID match only when the registration is not newer than the buffered event by more than REPLAY_PID_GRACE (2s) - a recycled PID's registration lands well outside that window, so the stale event ages out instead of misattributing. The legitimate #2 seed race (registration lands ~immediately) still replays. Adds unit tests for the recycle-refusal, in-grace acceptance, and weak-fallback exclusion. Signed-off-by: Akber Raza <akberr@nvidia.com> * fix(mxc-etw): surface unexpected ProcessTrace termination (review #4) start_session already returns Err on OpenTraceW failure (runs on the caller thread since e41a7701), closing the first half of Shailendra's #4. This closes the second half: ProcessTrace's result was discarded, so if capture died mid-run the backend had no way to know. Add a shared CaptureHealth (stopped/stopping/exit_code) between the pump thread and EtwSession. run_trace now records ProcessTrace's WIN32_ERROR and, when the pump returns without a deliberate stop, logs at ERROR that MXC OCSF capture is no longer running. EtwSession::stop() sets `stopping` before teardown so a normal shutdown isn't misreported, and EtwSession::is_capture_alive() exposes the state for status/diagnostics. Box-verified on 7F203-MXC-001: 5 sandboxes, 50 attributed OCSF rows, JSONL parity 50/50, BuffersLost=0, clean start/stop (no false failure). Signed-off-by: Akber Raza <akberr@nvidia.com> * feat(mxc-ocsf): add ETW->OCSF audit-trail example kit; fix proxy-configured message Add a runnable OCSF audit-trail example under examples/ (run-ocsf-audit.ps1, mxc-ocsf-audit.toml, ocsf-audit.yaml, README) that spins up sandboxes with the in-process ETW consumer and egress proxy on, emitting a full OCSF JSONL audit trail across all four classes (6002/5019/1007/2004). Fix SandboxProxyConfigured mapping to log "MXC sandbox proxy configured" instead of a misleading "(no proxy)" when the provider reports proxyPort=0; the event's presence already indicates proxy configuration. Verified on-box: 26 events, all mapped ETW event types present. Signed-off-by: Akber Raza <akberr@nvidia.com> * feat(mxc-ocsf): clearer audit report + client-safe run-ocsf-audit.ps1 Improve the ETW to OCSF audit-trail example output and make it safe to ship. Report: - Add an event-type coverage count ("N of M expected event types fired"); the denominator auto-adjusts (8 with proxy on, 7 with -NoProxy). - Split the checklist into expected event types vs anomaly findings (ActivityError/FallbackError), which are reported separately and not counted toward coverage (a clean run may emit none). - Verdict is now coverage-based (all expected types must fire) instead of the looser "at least 3 OCSF classes". - Call out the absolute path to the durable OCSF JSONL log prominently. Client-safety: - Default -ShareOut to empty (no auto-copy); pass -ShareOut a UNC path to opt in. Removes a hardcoded internal share path from a published example. - Drop internal-team wording ("Hand that zip back for evaluation", "BUNDLE:") in favor of neutral "Results bundle:". - Update README-ocsf-audit.txt to match the opt-in -ShareOut behavior. Verified on both MXC boxes: 7F203-MXC-001 (base-container) -> PASS, 8 of 8 event types, 26 OCSF events across 4 classes; 7F203-MXC-003 (AppContainer fallback) -> reduced set as expected, clean output. Signed-off-by: Akber Raza <akberr@nvidia.com> * fix(mxc): configure OCSF audit workloads per sandbox - remove unsupported gateway-scoped workload fields from the shipped MXC audit example. - build the command, working directory, and filesystem grant from each run's ShareDir - pass the workload through --driver-config-json. - preserve the host CONNECT proxy configuration and conditional audit coverage for the future host_connect_proxy merge - require the workload output when determining the audit verdict. Signed-off-by: Akber Raza <akberr@nvidia.com> * fix(mxc): omit command arguments from OCSF audit logs - record only the executable basename for MXC CreateProcessInSandbox audit events - leave process.cmd_line unset so workload arguments cannot reach shorthand or JSONL logs - cover tokens, passwords, signed URLs, and PII with a secret-leak regression test - update the audit example, architecture guidance, and published logging documentation - preserve ETW attribution and future host_connect_proxy enforcement behavior Signed-off-by: Akber Raza <akberr@nvidia.com> * feat(etw): enhance ETW session management with distinct naming for concurrent gateways * fix(etw): bound the audit queue during overload - replace the unbounded ETW callback channel with count- and byte-bounded buffering - keep the ETW callback non-blocking and count records rejected during overload - emit immediate, rate-limited warnings that identify resulting audit coverage gaps - make the audit example fail when queue overload causes dropped ETW records - cover stalled consumers, oversized events, and warning throttling with unit tests Signed-off-by: Akber Raza <akberr@nvidia.com> * fix(etw): harden sandbox audit attribution - remove command-line and persistent per-PID fallback keys from live and replay resolution - retire the driver-owned wxc-exec PID before publishing child completion - retain established identity, activity, and correlation-vector links only for the five-second late-event window - prevent buffered records from crossing rapid PID retirement and reuse boundaries - add resolver and lifecycle coverage and document the attribution trust boundary Signed-off-by: Akber Raza <akberr@nvidia.com> * chore(mxc): address rebase follow-ups Signed-off-by: Drew Newberry <anewberry@nvidia.com> * fix(mxc): align OCSF audit example with driver config - remove unsupported egress proxy settings - stop requiring the unavailable proxy audit event - update example documentation for supported event coverage Signed-off-by: Akber Raza <akberr@nvidia.com> * fix(etw): redact command-line secrets in DecodedEtwEvent summary * fix(etw): enhance PID resolution and event attribution logic for ETW records * fix(ocsf): restrict gateway-local JSONL sink to Windows/MXC path with opt-in configuration * address rebase issues * fix(mxc): address ETW audit review feedback Signed-off-by: Drew Newberry <anewberry@nvidia.com> * fix(mxc): fail closed across ambiguous PID reuse Signed-off-by: Drew Newberry <anewberry@nvidia.com> * fix(mxc): bind ETW attribution to process generation Signed-off-by: Drew Newberry <anewberry@nvidia.com> --------- Signed-off-by: Akber Raza <akberr@nvidia.com> Signed-off-by: Drew Newberry <anewberry@nvidia.com> Co-authored-by: Jamie King <jamiek@nvidia.com> Co-authored-by: Drew Newberry <anewberry@nvidia.com>