Files
VerseVDI-Data-Plane/core/tests/abi_contract.rs
T

908 lines
30 KiB
Rust

#![allow(
unsafe_code,
clippy::borrow_as_ptr,
clippy::cast_possible_truncation,
clippy::items_after_statements,
clashing_extern_declarations
)]
use std::cell::RefCell;
use std::collections::HashMap;
use std::ffi::c_void;
use std::mem::{offset_of, size_of};
use std::ptr;
use std::sync::atomic::{AtomicBool, AtomicU32, AtomicUsize, Ordering};
use std::sync::{Arc, Condvar, Mutex};
use std::thread;
use std::time::{Duration, Instant};
use rustls::sign::SigningKey;
use rustls::SignatureScheme;
#[path = "gateway_oracle.rs"]
mod gateway_oracle;
thread_local! {
static CORE_CONTEXTS: RefCell<HashMap<usize, usize>> = RefCell::new(HashMap::new());
static ORACLES: RefCell<HashMap<usize, gateway_oracle::Oracle>> = RefCell::new(HashMap::new());
}
const ABI_V1: u32 = 1;
const OK: u32 = 0;
const INVALID_ARGUMENT: u32 = 1;
const INVALID_STATE: u32 = 2;
const UNSUPPORTED_ABI: u32 = 3;
const AUTHORITY_REJECTED: u32 = 4;
const TLS: u32 = 5;
const QUEUE_FULL: u32 = 9;
const CANCELLED: u32 = 10;
const REENTRANT: u32 = 11;
const BUSY: u32 = 12;
const INTERNAL: u32 = 13;
const STATE_CONNECTING: u32 = 1;
const STATE_CONNECTED: u32 = 2;
const STATE_CANCELLED: u32 = 3;
const INPUT_KEYBOARD: u32 = 1;
#[repr(C)]
struct Core {
_private: [u8; 0],
}
#[repr(C)]
#[derive(Clone, Copy)]
struct BytesView {
data: *const u8,
length: usize,
}
#[repr(C)]
struct StateEvent {
struct_size: u32,
abi_version: u32,
state: u32,
reason: u32,
}
#[repr(C)]
struct ErrorEvent {
struct_size: u32,
abi_version: u32,
code: u32,
retryable: u32,
phase: u32,
reserved: u32,
}
#[repr(C)]
struct StatsEvent {
struct_size: u32,
abi_version: u32,
dropped_callbacks: u64,
dropped_media_units: u64,
dropped_input_events: u64,
}
#[repr(C)]
struct MediaEvent {
struct_size: u32,
abi_version: u32,
channel: u32,
sequence: u32,
timestamp_ms: u64,
encoded_unit: BytesView,
}
#[repr(C)]
struct ControlEvent {
struct_size: u32,
abi_version: u32,
kind: u32,
reserved: u32,
payload: BytesView,
}
type SignFn = unsafe extern "C" fn(*mut c_void, BytesView, *mut u8) -> u32;
type StateFn = unsafe extern "C" fn(*mut c_void, *const StateEvent);
type ErrorFn = unsafe extern "C" fn(*mut c_void, *const ErrorEvent);
type StatsFn = unsafe extern "C" fn(*mut c_void, *const StatsEvent);
type MediaFn = unsafe extern "C" fn(*mut c_void, *const MediaEvent);
type ControlFn = unsafe extern "C" fn(*mut c_void, *const ControlEvent);
#[repr(C)]
struct Config {
struct_size: u32,
abi_version: u32,
context: *mut c_void,
sign_admission: Option<SignFn>,
sign_tls_ed25519: Option<SignFn>,
on_state: Option<StateFn>,
on_error: Option<ErrorFn>,
on_stats: Option<StatsFn>,
on_media: Option<MediaFn>,
on_control: Option<ControlFn>,
}
#[repr(C)]
struct ConnectRequest {
struct_size: u32,
abi_version: u32,
manifest_json: BytesView,
tunnel_credential_json: BytesView,
}
#[repr(C)]
struct InputEvent {
struct_size: u32,
abi_version: u32,
kind: u32,
flags: u32,
values: [i32; 12],
}
unsafe extern "C" {
fn verse_core_abi_version() -> u32;
fn verse_core_create_v1(config: *const Config, out_core: *mut *mut Core) -> u32;
fn verse_core_connect_v1(core: *mut Core, request: *const ConnectRequest) -> u32;
fn verse_core_send_input_v1(core: *mut Core, event: *const InputEvent) -> u32;
fn verse_core_request_idr_v1(core: *mut Core) -> u32;
fn verse_core_cancel_v1(core: *mut Core) -> u32;
fn verse_core_destroy_v1(core: *mut Core, timeout_ms: u32) -> u32;
}
const MANIFEST: &[u8] = br#"{
"version":"1","purpose":"launch","session_id":"session","reconnect_sequence":0,
"gateway":{"id":"gateway","addresses":["gateway.test:443"],"public_identity":"gateway.test"},
"tunnel":{"versions":["verse-gateway-v1/1"],"features":["control.v1","input.absolute.v1","input.scroll.v1"]},
"profile":{"id":"standard","bounds":{"minimum_kbps":1000,"target_kbps":5000,"maximum_kbps":10000},"display_mode":{"resolution_width":1920,"resolution_height":1080,"fps":60}},
"grant":{"opaque_value":"ggggggggggggggggggggggggggggggggggggggggggg","expires_at":"2099-01-01T00:00:00Z","audience":"audience"},
"correlation_id":"correlation"
}"#;
const CREDENTIAL: &[u8] = br#"{"client_device_id":"device","device_key_id":"key","certificate_chain_pem":"-----BEGIN CERTIFICATE-----\nAQID\n-----END CERTIFICATE-----","trust_bundle_pem":"-----BEGIN CERTIFICATE-----\nAQID\n-----END CERTIFICATE-----","expires_at":"2099-01-01T00:00:00Z"}"#;
struct Context {
core: AtomicUsize,
admission_calls: AtomicUsize,
tls_calls: AtomicUsize,
admission_status: AtomicU32,
tls_status: AtomicU32,
admission_input: Mutex<Vec<u8>>,
tls_input: Mutex<Vec<u8>>,
states: Mutex<Vec<u32>>,
wake: Condvar,
reentry_cancel: AtomicU32,
reentry_send: AtomicU32,
reentry_destroy: AtomicU32,
block_callbacks: AtomicBool,
release_callbacks: AtomicBool,
callback_active: AtomicUsize,
callback_max: AtomicUsize,
cancel_on_connecting: AtomicBool,
reentry_target: AtomicUsize,
reentry_results: Mutex<Vec<u32>>,
admission_key: Mutex<Option<Arc<dyn SigningKey>>>,
tls_key: Mutex<Option<Arc<dyn SigningKey>>>,
}
impl Default for Context {
fn default() -> Self {
Self {
core: AtomicUsize::new(0),
admission_calls: AtomicUsize::new(0),
tls_calls: AtomicUsize::new(0),
admission_status: AtomicU32::new(OK),
tls_status: AtomicU32::new(OK),
admission_input: Mutex::new(Vec::new()),
tls_input: Mutex::new(Vec::new()),
states: Mutex::new(Vec::new()),
wake: Condvar::new(),
reentry_cancel: AtomicU32::new(u32::MAX),
reentry_send: AtomicU32::new(u32::MAX),
reentry_destroy: AtomicU32::new(u32::MAX),
block_callbacks: AtomicBool::new(false),
release_callbacks: AtomicBool::new(false),
callback_active: AtomicUsize::new(0),
callback_max: AtomicUsize::new(0),
cancel_on_connecting: AtomicBool::new(false),
reentry_target: AtomicUsize::new(0),
reentry_results: Mutex::new(Vec::new()),
admission_key: Mutex::new(None),
tls_key: Mutex::new(None),
}
}
}
unsafe fn context<'a>(raw: *mut c_void) -> &'a Context {
// Test invariant: every callback receives the live Box<Context> supplied at create.
unsafe { &*raw.cast::<Context>() }
}
unsafe extern "C" fn sign_admission(raw: *mut c_void, input: BytesView, output: *mut u8) -> u32 {
// Test invariant: ABI promises input is readable for input.length during this callback.
let bytes = unsafe { std::slice::from_raw_parts(input.data, input.length) };
let ctx = unsafe { context(raw) };
ctx.admission_calls.fetch_add(1, Ordering::SeqCst);
*ctx.admission_input.lock().expect("admission lock") = bytes.to_vec();
let status = ctx.admission_status.load(Ordering::SeqCst);
if status != OK {
return status;
}
let key = ctx.admission_key.lock().expect("admission key");
let Some(key) = key.as_ref() else {
return INTERNAL;
};
let signer = key
.choose_scheme(&[SignatureScheme::ED25519])
.expect("Ed25519 admission signer");
let signature = signer.sign(bytes).expect("admission signature");
assert_eq!(signature.len(), 64);
// Test invariant: ABI promises a writable 64-byte Rust-owned signature buffer.
unsafe { ptr::copy_nonoverlapping(signature.as_ptr(), output, signature.len()) };
OK
}
unsafe extern "C" fn sign_tls(raw: *mut c_void, input: BytesView, output: *mut u8) -> u32 {
// Test invariant: ABI promises input is readable for input.length during this callback.
let bytes = unsafe { std::slice::from_raw_parts(input.data, input.length) };
let ctx = unsafe { context(raw) };
ctx.tls_calls.fetch_add(1, Ordering::SeqCst);
*ctx.tls_input.lock().expect("tls lock") = bytes.to_vec();
let status = ctx.tls_status.load(Ordering::SeqCst);
if status != OK {
return status;
}
let key = ctx.tls_key.lock().expect("TLS key");
let Some(key) = key.as_ref() else {
return INTERNAL;
};
let signer = key
.choose_scheme(&[SignatureScheme::ED25519])
.expect("Ed25519 TLS signer");
let signature = signer.sign(bytes).expect("TLS signature");
assert_eq!(signature.len(), 64);
// Test invariant: ABI promises a writable 64-byte Rust-owned signature buffer.
unsafe { ptr::copy_nonoverlapping(signature.as_ptr(), output, signature.len()) };
OK
}
unsafe extern "C" fn sign_admission_probes_global_reentry(
raw: *mut c_void,
input: BytesView,
output: *mut u8,
) -> u32 {
let ctx = unsafe { context(raw) };
let target = ctx.reentry_target.load(Ordering::SeqCst) as *mut Core;
let results = [
unsafe { verse_core_abi_version() },
unsafe { verse_core_create_v1(ptr::null(), ptr::null_mut()) },
unsafe { verse_core_connect_v1(target, ptr::null()) },
unsafe { verse_core_send_input_v1(target, ptr::null()) },
unsafe { verse_core_request_idr_v1(target) },
unsafe { verse_core_cancel_v1(target) },
unsafe { verse_core_destroy_v1(target, 0) },
];
ctx.reentry_results
.lock()
.expect("signer reentry results")
.extend(results);
unsafe { sign_admission(raw, input, output) }
}
unsafe extern "C" fn on_state_probes_global_reentry(raw: *mut c_void, event: *const StateEvent) {
let ctx = unsafe { context(raw) };
// Test invariant: ABI promises a readable state record for the callback duration.
let state = unsafe { (*event).state };
ctx.states.lock().expect("states lock").push(state);
ctx.wake.notify_all();
if state != STATE_CONNECTED {
return;
}
let origin = ctx.core.load(Ordering::SeqCst) as *mut Core;
let other = ctx.reentry_target.load(Ordering::SeqCst) as *mut Core;
let results = [
unsafe { verse_core_abi_version() },
unsafe { verse_core_create_v1(ptr::null(), ptr::null_mut()) },
unsafe { verse_core_connect_v1(origin, ptr::null()) },
unsafe { verse_core_send_input_v1(origin, ptr::null()) },
unsafe { verse_core_request_idr_v1(origin) },
unsafe { verse_core_cancel_v1(other) },
unsafe { verse_core_destroy_v1(origin, 0) },
unsafe { verse_core_cancel_v1(origin) },
];
ctx.reentry_results
.lock()
.expect("event reentry results")
.extend(results);
}
unsafe extern "C" fn on_state(raw: *mut c_void, event: *const StateEvent) {
let ctx = unsafe { context(raw) };
let active = ctx.callback_active.fetch_add(1, Ordering::SeqCst) + 1;
ctx.callback_max.fetch_max(active, Ordering::SeqCst);
// Test invariant: ABI promises a readable state record for the callback duration.
let state = unsafe { (*event).state };
ctx.states.lock().expect("states lock").push(state);
ctx.wake.notify_all();
if state == STATE_CONNECTING && ctx.cancel_on_connecting.load(Ordering::SeqCst) {
let core = ctx.core.load(Ordering::SeqCst) as *mut Core;
ctx.reentry_cancel
.store(unsafe { verse_core_cancel_v1(core) }, Ordering::SeqCst);
}
if ctx.block_callbacks.load(Ordering::SeqCst) && !ctx.release_callbacks.load(Ordering::SeqCst) {
let mut states = ctx.states.lock().expect("states lock");
while !ctx.release_callbacks.load(Ordering::SeqCst) {
states = ctx.wake.wait(states).expect("callback wait");
}
}
if state == STATE_CONNECTED && ctx.reentry_cancel.load(Ordering::SeqCst) == u32::MAX {
let core = ctx.core.load(Ordering::SeqCst) as *mut Core;
// Test invariant: the stored handle is live until this callback and its destroy complete.
ctx.reentry_cancel
.store(unsafe { verse_core_cancel_v1(core) }, Ordering::SeqCst);
let event = keyboard_event();
// Test invariant: event and handle remain valid for the synchronous call.
ctx.reentry_send.store(
unsafe { verse_core_send_input_v1(core, &event) },
Ordering::SeqCst,
);
// Test invariant: the callback intentionally probes the documented reentry rejection.
ctx.reentry_destroy
.store(unsafe { verse_core_destroy_v1(core, 1) }, Ordering::SeqCst);
}
ctx.callback_active.fetch_sub(1, Ordering::SeqCst);
}
unsafe extern "C" fn sign_admission_reenters(
raw: *mut c_void,
input: BytesView,
output: *mut u8,
) -> u32 {
let ctx = unsafe { context(raw) };
ctx.reentry_cancel.store(
unsafe { verse_core_cancel_v1(ctx.core.load(Ordering::SeqCst) as *mut Core) },
Ordering::SeqCst,
);
unsafe { sign_admission(raw, input, output) }
}
unsafe extern "C" fn sign_admission_waits_for_cancel(
raw: *mut c_void,
input: BytesView,
output: *mut u8,
) -> u32 {
let ctx = unsafe { context(raw) };
let deadline = Instant::now() + Duration::from_secs(2);
while ctx.reentry_cancel.load(Ordering::SeqCst) == u32::MAX {
assert!(
Instant::now() < deadline,
"connecting callback did not cancel"
);
thread::yield_now();
}
unsafe { sign_admission(raw, input, output) }
}
fn config(ctx: &mut Context) -> Config {
Config {
struct_size: size_of::<Config>() as u32,
abi_version: ABI_V1,
context: ptr::from_mut(ctx).cast(),
sign_admission: Some(sign_admission),
sign_tls_ed25519: Some(sign_tls),
on_state: Some(on_state),
on_error: None,
on_stats: None,
on_media: None,
on_control: None,
}
}
fn request(manifest: &[u8], credential: &[u8]) -> ConnectRequest {
ConnectRequest {
struct_size: size_of::<ConnectRequest>() as u32,
abi_version: ABI_V1,
manifest_json: BytesView {
data: manifest.as_ptr(),
length: manifest.len(),
},
tunnel_credential_json: BytesView {
data: credential.as_ptr(),
length: credential.len(),
},
}
}
fn keyboard_event() -> InputEvent {
let mut values = [0; 12];
values[0] = 1;
values[2] = 30;
InputEvent {
struct_size: size_of::<InputEvent>() as u32,
abi_version: ABI_V1,
kind: INPUT_KEYBOARD,
flags: 0,
values,
}
}
fn create(ctx: &mut Context) -> *mut Core {
let mut core = ptr::null_mut();
let config = config(ctx);
// Test invariant: config/out pointers remain valid for the synchronous create call.
assert_eq!(unsafe { verse_core_create_v1(&config, &mut core) }, OK);
assert!(!core.is_null());
register(core, ctx);
core
}
fn register(core: *mut Core, ctx: &mut Context) {
ctx.core.store(core as usize, Ordering::SeqCst);
CORE_CONTEXTS.with(|contexts| {
contexts
.borrow_mut()
.insert(core as usize, ptr::from_mut(ctx) as usize);
});
}
fn connect(core: *mut Core, manifest: &[u8], credential: &[u8]) -> u32 {
connect_mode(core, "", manifest, credential)
}
fn connect_mode(core: *mut Core, mode: &str, manifest: &[u8], credential: &[u8]) -> u32 {
connect_with_oracle(core, mode, |oracle| {
let manifest = if manifest == MANIFEST {
oracle.ready.manifest.as_bytes()
} else {
manifest
};
let credential = if credential == CREDENTIAL {
oracle.ready.credential.as_bytes()
} else {
credential
};
let request = request(manifest, credential);
// Test invariant: request and backing byte slices remain valid for the synchronous call.
unsafe { verse_core_connect_v1(core, &request) }
})
}
fn connect_with_oracle(
core: *mut Core,
mode: &str,
action: impl FnOnce(&gateway_oracle::Oracle) -> u32,
) -> u32 {
let oracle = gateway_oracle::Oracle::start(mode);
CORE_CONTEXTS.with(|contexts| {
let raw = *contexts
.borrow()
.get(&(core as usize))
.expect("registered ABI context");
// Test invariant: context outlives the core and is removed only after destroy succeeds.
let ctx = unsafe { &*(raw as *const Context) };
*ctx.admission_key.lock().expect("admission key") =
Some(gateway_oracle::test_key(&oracle.ready.admission_key));
*ctx.tls_key.lock().expect("TLS key") =
Some(gateway_oracle::test_key(&oracle.ready.client_key));
});
let status = action(&oracle);
if status == OK {
ORACLES.with(|oracles| {
oracles.borrow_mut().insert(core as usize, oracle);
});
}
status
}
fn wait_for(ctx: &Context, predicate: impl Fn(&[u32]) -> bool) {
let deadline = Instant::now() + Duration::from_secs(2);
let mut states = ctx.states.lock().expect("states lock");
while !predicate(&states) {
let remaining = deadline.saturating_duration_since(Instant::now());
assert!(
!remaining.is_zero(),
"callback deadline exceeded: {states:?}"
);
(states, _) = ctx
.wake
.wait_timeout(states, remaining)
.expect("callback wait");
}
}
fn destroy(core: *mut Core) -> u32 {
// Test invariant: caller retains the handle until destroy reports success.
let status = unsafe { verse_core_destroy_v1(core, 2_000) };
if status == OK {
ORACLES.with(|oracles| {
oracles.borrow_mut().remove(&(core as usize));
});
CORE_CONTEXTS.with(|contexts| {
contexts.borrow_mut().remove(&(core as usize));
});
}
status
}
#[test]
fn arm64_c_layout_is_exact_and_version_is_fixed() {
assert_eq!(versevdi_core::session::INPUT_QUEUE_CAPACITY, 64);
assert_eq!(size_of::<BytesView>(), 16);
assert_eq!(size_of::<Config>(), 72);
assert_eq!(offset_of!(Config, sign_admission), 16);
assert_eq!(size_of::<ConnectRequest>(), 40);
assert_eq!(offset_of!(ConnectRequest, manifest_json), 8);
assert_eq!(size_of::<InputEvent>(), 64);
assert_eq!(size_of::<StateEvent>(), 16);
assert_eq!(size_of::<ErrorEvent>(), 24);
assert_eq!(size_of::<StatsEvent>(), 32);
assert_eq!(size_of::<MediaEvent>(), 40);
assert_eq!(size_of::<ControlEvent>(), 32);
// Test invariant: no pointer arguments are involved.
assert_eq!(unsafe { verse_core_abi_version() }, ABI_V1);
}
#[test]
fn create_validates_prefix_callbacks_output_and_trailing_bytes() {
let mut ctx = Context::default();
let mut core = ptr::dangling_mut::<Core>();
let mut cfg = config(&mut ctx);
cfg.struct_size = 7;
// Test invariant: config/out are readable/writable for this call.
assert_eq!(
unsafe { verse_core_create_v1(&cfg, &mut core) },
INVALID_ARGUMENT
);
assert!(core.is_null());
cfg = config(&mut ctx);
cfg.abi_version = 2;
assert_eq!(
unsafe { verse_core_create_v1(&cfg, &mut core) },
UNSUPPORTED_ABI
);
assert!(core.is_null());
cfg = config(&mut ctx);
cfg.sign_tls_ed25519 = None;
assert_eq!(
unsafe { verse_core_create_v1(&cfg, &mut core) },
INVALID_ARGUMENT
);
assert!(core.is_null());
#[repr(C)]
struct Extended {
base: Config,
ignored: [u8; 32],
}
let extended = Extended {
base: config(&mut ctx),
ignored: [0xEE; 32],
};
let mut extended = extended;
extended.base.struct_size = size_of::<Extended>() as u32;
assert_eq!(
unsafe { verse_core_create_v1(&extended.base, &mut core) },
OK
);
assert_eq!(destroy(core), OK);
}
#[test]
fn connect_copies_inputs_and_calls_purpose_specific_signers_once() {
let mut ctx = Context::default();
let core = create(&mut ctx);
let mut manifest = MANIFEST.to_vec();
let mut credential = CREDENTIAL.to_vec();
assert_eq!(connect(core, &manifest, &credential), OK);
manifest.fill(b'x');
credential.fill(b'y');
assert_eq!(ctx.admission_calls.load(Ordering::SeqCst), 1);
assert_eq!(ctx.tls_calls.load(Ordering::SeqCst), 1);
let admission = ctx.admission_input.lock().expect("admission");
let tls = ctx.tls_input.lock().expect("tls");
assert!(admission.starts_with(b"versevdi/tunnel-admission/v1"));
assert!(!tls.is_empty());
assert_ne!(&*admission, &*tls);
assert_eq!(destroy(core), OK);
}
#[test]
fn tables_and_slices_reject_short_unsupported_null_and_oversized_inputs() {
let mut ctx = Context::default();
ctx.reentry_cancel.store(OK, Ordering::SeqCst);
let core = create(&mut ctx);
let mut req = request(MANIFEST, CREDENTIAL);
req.struct_size = 7;
assert_eq!(
unsafe { verse_core_connect_v1(core, &req) },
INVALID_ARGUMENT
);
req.struct_size = size_of::<ConnectRequest>() as u32;
req.abi_version = 2;
assert_eq!(
unsafe { verse_core_connect_v1(core, &req) },
UNSUPPORTED_ABI
);
req.abi_version = ABI_V1;
req.manifest_json = BytesView {
data: ptr::null(),
length: 1,
};
assert_eq!(
unsafe { verse_core_connect_v1(core, &req) },
INVALID_ARGUMENT
);
req.manifest_json = BytesView {
data: ptr::null(),
length: 0,
};
assert_eq!(
unsafe { verse_core_connect_v1(core, &req) },
INVALID_ARGUMENT
);
req.manifest_json.length = 1_048_577;
assert_eq!(
unsafe { verse_core_connect_v1(core, &req) },
INVALID_ARGUMENT
);
let mut input = keyboard_event();
input.struct_size = 7;
assert_eq!(
unsafe { verse_core_send_input_v1(core, &input) },
INVALID_ARGUMENT
);
input.struct_size = size_of::<InputEvent>() as u32;
input.abi_version = 2;
assert_eq!(
unsafe { verse_core_send_input_v1(core, &input) },
UNSUPPORTED_ABI
);
#[repr(C)]
struct ExtendedRequest {
base: ConnectRequest,
ignored: [u8; 24],
}
assert_eq!(
connect_with_oracle(core, "", |oracle| {
let mut trailing_request = ExtendedRequest {
base: request(
oracle.ready.manifest.as_bytes(),
oracle.ready.credential.as_bytes(),
),
ignored: [0xEE; 24],
};
trailing_request.base.struct_size = size_of::<ExtendedRequest>() as u32;
unsafe { verse_core_connect_v1(core, &trailing_request.base) }
}),
OK
);
#[repr(C)]
struct ExtendedInput {
base: InputEvent,
ignored: [u8; 24],
}
let mut trailing_input = ExtendedInput {
base: keyboard_event(),
ignored: [0xEE; 24],
};
trailing_input.base.struct_size = size_of::<ExtendedInput>() as u32;
assert_eq!(
unsafe { verse_core_send_input_v1(core, &trailing_input.base) },
OK
);
assert_eq!(destroy(core), OK);
}
#[test]
fn callback_order_is_serial_and_only_cancel_is_reentrant() {
let mut ctx = Context::default();
let core = create(&mut ctx);
assert_eq!(connect(core, MANIFEST, CREDENTIAL), OK);
wait_for(&ctx, |states| states.contains(&STATE_CANCELLED));
assert_eq!(
ctx.states.lock().expect("states").as_slice(),
[STATE_CONNECTING, STATE_CONNECTED, STATE_CANCELLED]
);
assert_eq!(ctx.reentry_cancel.load(Ordering::SeqCst), OK);
assert_eq!(ctx.reentry_send.load(Ordering::SeqCst), REENTRANT);
assert_eq!(ctx.reentry_destroy.load(Ordering::SeqCst), REENTRANT);
assert_eq!(ctx.callback_max.load(Ordering::SeqCst), 1);
assert_eq!(destroy(core), OK);
}
#[test]
fn signer_callbacks_cannot_reenter_even_cancel() {
let mut ctx = Context::default();
let mut cfg = config(&mut ctx);
cfg.sign_admission = Some(sign_admission_reenters);
let mut core = ptr::null_mut();
assert_eq!(unsafe { verse_core_create_v1(&cfg, &mut core) }, OK);
register(core, &mut ctx);
assert_eq!(connect(core, MANIFEST, CREDENTIAL), OK);
assert_eq!(ctx.reentry_cancel.load(Ordering::SeqCst), REENTRANT);
assert_eq!(destroy(core), OK);
}
#[test]
fn signer_callback_rejects_every_stateful_api_across_handles() {
let mut other_ctx = Context::default();
other_ctx.reentry_cancel.store(OK, Ordering::SeqCst);
let other = create(&mut other_ctx);
let mut ctx = Context::default();
ctx.reentry_cancel.store(OK, Ordering::SeqCst);
ctx.reentry_target.store(other as usize, Ordering::SeqCst);
let mut cfg = config(&mut ctx);
cfg.sign_admission = Some(sign_admission_probes_global_reentry);
let mut core = ptr::null_mut();
assert_eq!(unsafe { verse_core_create_v1(&cfg, &mut core) }, OK);
register(core, &mut ctx);
assert_eq!(connect(core, MANIFEST, CREDENTIAL), OK);
assert_eq!(
ctx.reentry_results
.lock()
.expect("signer results")
.as_slice(),
[ABI_V1, REENTRANT, REENTRANT, REENTRANT, REENTRANT, REENTRANT, REENTRANT]
);
assert_eq!(destroy(core), OK);
assert_eq!(connect(other, MANIFEST, CREDENTIAL), OK);
assert_eq!(destroy(other), OK);
}
#[test]
fn event_callback_allows_only_originating_handle_cancel() {
let mut other_ctx = Context::default();
other_ctx.reentry_cancel.store(OK, Ordering::SeqCst);
let other = create(&mut other_ctx);
let mut ctx = Context::default();
ctx.reentry_target.store(other as usize, Ordering::SeqCst);
let mut cfg = config(&mut ctx);
cfg.on_state = Some(on_state_probes_global_reentry);
let mut core = ptr::null_mut();
assert_eq!(unsafe { verse_core_create_v1(&cfg, &mut core) }, OK);
register(core, &mut ctx);
assert_eq!(connect(core, MANIFEST, CREDENTIAL), OK);
wait_for(&ctx, |states| states.contains(&STATE_CANCELLED));
assert_eq!(
ctx.reentry_results
.lock()
.expect("event results")
.as_slice(),
[ABI_V1, REENTRANT, REENTRANT, REENTRANT, REENTRANT, REENTRANT, REENTRANT, OK]
);
assert_eq!(destroy(core), OK);
assert_eq!(connect(other, MANIFEST, CREDENTIAL), OK);
assert_eq!(destroy(other), OK);
}
#[test]
fn signer_statuses_are_purpose_specific_and_unknown_values_are_internal() {
for (admission, expected) in [
(OK, OK),
(AUTHORITY_REJECTED, AUTHORITY_REJECTED),
(CANCELLED, CANCELLED),
(INTERNAL, INTERNAL),
(TLS, INTERNAL),
(u32::MAX, INTERNAL),
] {
let mut ctx = Context::default();
ctx.reentry_cancel.store(OK, Ordering::SeqCst);
ctx.admission_status.store(admission, Ordering::SeqCst);
let core = create(&mut ctx);
assert_eq!(connect(core, MANIFEST, CREDENTIAL), expected);
assert_eq!(destroy(core), OK);
}
for (tls, expected) in [
(OK, OK),
(TLS, TLS),
(CANCELLED, CANCELLED),
(INTERNAL, INTERNAL),
(AUTHORITY_REJECTED, INTERNAL),
(u32::MAX, INTERNAL),
] {
let mut ctx = Context::default();
ctx.reentry_cancel.store(OK, Ordering::SeqCst);
ctx.tls_status.store(tls, Ordering::SeqCst);
let core = create(&mut ctx);
assert_eq!(connect(core, MANIFEST, CREDENTIAL), expected);
assert_eq!(destroy(core), OK);
}
}
#[test]
fn cancel_during_connect_preserves_state_order_and_stops_before_tls_signing() {
let mut ctx = Context::default();
ctx.cancel_on_connecting.store(true, Ordering::SeqCst);
let mut cfg = config(&mut ctx);
cfg.sign_admission = Some(sign_admission_waits_for_cancel);
let mut core = ptr::null_mut();
assert_eq!(unsafe { verse_core_create_v1(&cfg, &mut core) }, OK);
register(core, &mut ctx);
assert_eq!(connect(core, MANIFEST, CREDENTIAL), CANCELLED);
wait_for(&ctx, |states| states.contains(&STATE_CANCELLED));
assert_eq!(
ctx.states.lock().expect("states").as_slice(),
[STATE_CONNECTING, STATE_CANCELLED]
);
assert_eq!(ctx.tls_calls.load(Ordering::SeqCst), 0);
assert_eq!(destroy(core), OK);
}
#[test]
fn send_input_is_nonblocking_bounded_and_cancel_is_idempotent() {
let mut ctx = Context::default();
ctx.reentry_cancel.store(OK, Ordering::SeqCst);
let core = create(&mut ctx);
assert_eq!(connect_mode(core, "slow-input", MANIFEST, CREDENTIAL), OK);
let event = keyboard_event();
let started = Instant::now();
let mut sent = 0;
let saturated = loop {
match unsafe { verse_core_send_input_v1(core, &event) } {
OK => sent += 1,
QUEUE_FULL => break true,
status => panic!("unexpected input status {status}"),
}
if sent == 10_000 || started.elapsed() > Duration::from_secs(1) {
break false;
}
};
assert!(saturated, "real slow consumer did not expose bounded queue");
assert!(started.elapsed() < Duration::from_secs(1));
assert_eq!(unsafe { verse_core_cancel_v1(core) }, OK);
assert_eq!(unsafe { verse_core_cancel_v1(core) }, OK);
assert_eq!(unsafe { verse_core_send_input_v1(core, &event) }, CANCELLED);
assert_eq!(destroy(core), OK);
}
#[test]
fn destroy_timeout_keeps_ownership_suppresses_late_callbacks_and_allows_retry() {
let mut ctx = Context::default();
ctx.reentry_cancel.store(OK, Ordering::SeqCst);
ctx.block_callbacks.store(true, Ordering::SeqCst);
let core = create(&mut ctx);
assert_eq!(connect(core, MANIFEST, CREDENTIAL), OK);
wait_for(&ctx, |states| !states.is_empty());
assert_eq!(unsafe { verse_core_destroy_v1(core, 1) }, BUSY);
let count_at_timeout = ctx.states.lock().expect("states").len();
ctx.release_callbacks.store(true, Ordering::SeqCst);
ctx.wake.notify_all();
assert_eq!(destroy(core), OK);
assert_eq!(ctx.states.lock().expect("states").len(), count_at_timeout);
}
#[test]
fn preconnect_and_postcancel_state_checks_are_stable() {
let mut ctx = Context::default();
ctx.reentry_cancel.store(OK, Ordering::SeqCst);
let core = create(&mut ctx);
let event = keyboard_event();
assert_eq!(
unsafe { verse_core_send_input_v1(core, &event) },
INVALID_STATE
);
assert_eq!(unsafe { verse_core_request_idr_v1(core) }, INVALID_STATE);
assert_eq!(unsafe { verse_core_cancel_v1(core) }, OK);
assert_eq!(connect(core, MANIFEST, CREDENTIAL), CANCELLED);
assert_eq!(destroy(core), OK);
}