deleteExpiredNtfs trimmed each notifier's message list but never removed
the outer NtfStore map key, so one empty entry per notifier queue that
ever received a notification was retained forever (grows with the active
notifier set, never shrinks).
Remove the outer key when its list becomes empty, and make storeNtf fully
atomic so it cannot race the removal and write a notification to an
orphaned TVar. Verified with the load bench (ntfexp): after expiry
ntfStore_keys drops from the queue count to 0 instead of staying flat.
Standalone smp-mem-bench executable that starts an in-process SMP server
and drives churn workloads, reporting GHC live-heap residency per
checkpoint after a forced major GC. Store selectable via BENCHSTORE
(pgmsg/pgjournal/journal).
Phases: plain, svc, svcrace, ntf, conc, svcsubs, getp, link, and leak
repros - stuck (delivery threads blocked forever on a full sndQ),
certchurn (serviceLocks/services grow per distinct service certificate),
and ntfexp (NtfStore keys retained after notifications expire).
Add an exception-guarded periodic thread that logs a single greppable
"LEAKDIAG" line censusing every growable in-memory structure: live
threads, per-client endThreads and subscriptions (by SubThread state),
subscriber maps, ntf store, store entity/loaded counts, and proxy agent
maps with in-flight sentCommands. Interval via SMP_LEAKDIAG_SEC
(default 60), no RTS flags required.
Adds pClientSentCommandsCount and getAgentLeakStats accessors.
Service subscription counters (totalServiceSubs, serviceSubsCount,
ntfServiceSubsCount) are TVar (Int64, IdsHash). modifyTVar' only forces
the pair to WHNF, so `n +/- n'` and `idsHash <> idsHash'` stay
unevaluated and accumulate an unbounded thunk chain under subscription
and delivery churn (the IdsHash chain also retains a bytestring per
update) - a space leak proportional to the number of updates.
Force both components in addServiceSubs/subtractServiceSubs. Verified
with the load bench: svc churn drops from +5.4 KiB/iter (linear) to flat.
* smp-server: namespaces resolver scaffolding
* smp-server: Names resolver hardening + cleanup
* smp-server: fuse parallel dispatchers
* smp-server: JSON wire format for NameRecord + Names.hs restructure
* smp-server: redact RpcAuth in Show
* smp-server: JSON wire fixups + spec rewrite + small cleanups
* plan: prepend implementation-diverged banner
* move SimplexName into shared module
* smp-server: name + contract whitelist on RSLV
* smp-server: address audit findings (canonical JSON, INI guards, SSRF, TLD case, shutdown)
* smp-server: round 2 audit fixes (label case, response cap, ipv6 link-local)
* smp-server: round 3 audit fixes (SSRF coverage, drop noop closeManager, CSV order)
* smp-server: round 4 audit fixes (0X-hex host, expanded IPv6 forms, pingEndpoint timeout)
* smp-server: hardcode TldRegistries (drop registry_tld_* INI keys)
* smp-server: round 6 audit fixes (IPv6 SSRF, redirects, ASCII labels)
- Reject IPv6 aliases of 169.254.169.254 (IPv4-compatible / IPv4-mapped /
6to4 / NAT64) via numeric range check on parsed IPv6.
- Disable HTTP redirects on the Eth RPC request.
- Restrict SimplexName labels to ASCII (Cyrillic/Greek/full-width otherwise
hash to different on-chain records and diverge from UTS-46 registrars).
- pingEndpoint: only JsonRpcErr means "reachable"; transport/decode failures
fail startup. boundedIniInt: readMaybe over partial read.
- Add 127.0.0.0/8 and 0.0.0.0 to isLoopback.
- Replace hand-rolled hex helpers with Data.ByteArray.Encoding; raise
managerConnCount to match rpcMaxConcurrency; hex Show for NameOwner.
- Fuse parallel http/https when into unless+case; drop reverse/re-reverse
in mkDomain TLDWeb; first AbiInvariantViolated; Nothing <$ decodeAddress;
forM_ (eitherToMaybe ...); >>= chain in NameOwner FromJSON.
- Drop dead imports/exports/pragmas and two restating comments.
- Tests: factor unsafeOwner/unsafeLink, addr1/2/3, testNamesConfig; add
non-ASCII label rejection coverage.
* namespace: bound parser input to 253 bytes (DoS defense)
The bare-name fallback and bareDomain parser would otherwise consume
arbitrarily many non-space bytes via takeWhile1 before any validation
or length check. A crafted multi-megabyte token would be decoded as
UTF-8 and re-parsed in full before being rejected.
Introduce `boundedNonSpace` (scan with 253-byte cap) at the two
takeWhile1 sites. Inputs longer than 253 bytes leave residue that
parseOnly's implicit endOfInput rejects, so the parser fails fast
without ever allocating the full input.
The bound is the DNS full-domain limit, chosen for being a familiar
ceiling generous enough to cover any realistic SimpleX name (longest
plausible @user.subdomain.simplex stays well under 100 bytes). No
per-label cap — SimpleX names don't go through DNS label resolution
and there's no semantic reason to constrain individual labels.
* namespace: switch to Python HTTP resolver + agent plumbing (#1796)
* namespace: relax resolver_endpoint validation (path prefix, http without auth)
validateUrl gains two operator-friendly relaxations and a regression test:
- Allow a path prefix (e.g. https://gw.example.com:443/snrc) for a resolver
behind a reverse-proxy sub-path; /resolve/<name> and /health are appended
(HttpResolver already strips one trailing slash, so root and sub-path
behave identically). Query/fragment/userinfo stay rejected.
- Off-loopback, reject only http WITH resolver_auth (the Authorization header
would travel in cleartext). http without auth is now allowed (no secret to
leak; resolver data is public — also lets dev setups reach a host resolver
via http://host.docker.internal). https is always allowed, with or without
auth. Plain http has no response integrity; intended for trusted/local
networks only.
Exports validateUrl and adds validateUrlSpec (11 cases) to SMPNamesTests.
* namespace: NameRecord links as arrays (multi-link, cap 5)
* namespace: distinct RSLV error responses
RSLV collapsed every non-hit (no resolver, malformed name, not found,
backing-store failure) to ERR AUTH, so a client iterating its configured
servers could not tell "this router has no resolver, try the next" from
"name not registered, stop", and a transient backend error read as an
authoritative miss.
Names capability is runtime config, orthogonal to the linear SMP version
(a future v21 router without [NAMES] must still advertise v21), so it is
signalled by a command-time error like allowSMPProxy, not by the version
range:
no resolver configured -> ERR CMD PROHIBITED (client skips, tries next)
backing-store failure -> ERR INTERNAL (transient: retry/surface)
not found / malformed -> ERR AUTH (authoritative "no such name")
Update the protocol spec error table and add agent tests for the
no-resolver (CMD PROHIBITED) and backend-failure (INTERNAL) paths.
* refactor(names): server role + one error type
Addresses epoberezkin's review (PR #1784). Name resolution becomes a
server role like proxy; the agent owns resolution + server selection;
one error type flows through the whole stack.
- ServerRoles gains `names`; UserServers gains `nameSrvs` (opt-in list);
resolveSimplexName drops the explicit server arg and picks a
names-capable server via getNextServer.
- RSLV carries SimplexNameDomain (was RslvRequest): no JSON on the wire,
contract dropped, name validated at parse (invalid -> CMD SYNTAX).
- Version check moves from the encoder to Client.hs (no ERR to server).
- ErrorType.NAME {nameErr :: NameErrorType} (+ AgentErrorType.NAME),
wire- and JSON-encoded; resolver errors surface with diagnostics.
Success response renamed NAME -> RNAME to free the collision.
- NameOwner -> EthAddress (record selector); NameRecord derives FromJSON
and gains field-ordered Encoding; per-field caps removed.
- Remove newEnvWithNames / runSMPServerBlockingWithNames test seams;
stub resolver folded into ServerConfig.namesResolverCall_.
* test(server): update stats backup line count
NameResolverStatsData adds 6 lines to the server stats backup (the
"rslvStats:" header plus the reqs/succ/notFound/resolverErrs/disabled
fields), so testRestoreMessages' expected stats-backup line count is
95 -> 101.
* feat(names): public-namespace resolution via RSLV/RNAME
SNRC names resolver role: RSLV command -> HTTP resolver -> RNAME record.
Agent owns server selection (ServerRoles.names); NAME error family; async,
concurrency-bounded resolution; length-prefixed extensible wire; spec.
* remove comments
Co-authored-by: Evgeny <evgeny@poberezkin.com>
* simplify
* move tests name
* simplify: text addresses, Tail JSON, drop admitRslv
* fix
* remove spaghetti
* reduce diff
* async again, refactor
* different threads limit for name resolutions
* remove comment
* FromField instance for SimplexNameInfo
* remove comments
* unStrJSON
* add sameConnShortLink
* remove scheme prefix
* remove unused import
* remove connecttarget tests
* remove comment
* comment
---------
Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com>
Co-authored-by: Evgeny @ SimpleX Chat <259188159+evgeny-simplex@users.noreply.github.com>
* docs: plan for service subscriptions memory leak
* fix: remove leaked service delivery subscriptions
The CSAEndServiceSub handler decremented subscription counters but did
not remove the per-queue delivery Sub from the service client's
subscriptions map. Over queue churn a long-lived service connection
accumulated orphaned Sub entries until disconnect, leaking memory.
Mirror CSAEndSub via endServiceQueueSub (reusing endSub) so the entry
is removed and its delivery thread cancelled.
Add a regression test with white-box access to the server Env via
runSMPServerBlocking_; verified failing without the fix.
* test: remove service subs leak regression test
Remove testServiceSubsRemovedOnQueueDelete and the test-only Env
exposure (runSMPServerBlocking_, withSmpServerConfigEnvOn,
serviceSubsMapSize), leaving only the server fix.
* refactor: simplify unsubPrev with applicative
Express the cancel-if-present logic as sequence_ (unsub_ <*> s_).
* tests: add SMP proxy relay reconnection tests
Reproduces the proxy failing to reconnect to a destination relay when the
sender disconnects mid-connection (empty session var left in smpClients).
* fix: bracket session var creation to drop it on interrupt
getSessVar inserts an empty session var that the connect path then fills with
putTMVar. If the connecting thread is killed by an async exception before that
fill (a proxy worker on client disconnect, an agent worker on cancel), the empty
var was left in the map forever and every later request for that server blocked
on it until timing out (permanent PCEResponseTimeout).
Wrap get-or-create with withGetSessVar (bracketOnError) at the call sites, so the
cleanup is established where the var is created and covers the whole connect: on
interrupt before fill the still-empty var is dropped and the next request
reconnects. This closes the window between getSessVar and the fill that a handler
installed inside the connect function cannot cover.
* test: cover session var leak on interrupted connect
UtilTests: tryAllErrors rethrows ThreadKilled/StackOverflow (the mechanism
that skips putTMVar). SMPProxyTests: agent client reconnection after a
cancelled connect, plus a control proving the stalling relay alone does not
cause the failure; refine the relay reconnection tests.
* refactor
---------
Co-authored-by: Evgeny Poberezkin <evgeny@poberezkin.com>
* add REST API to resolve SNRC
* fix unset fields
* support multi-TLD deployments
* update for mainnet tests
* haskell-friendly fieldnames
* add subname hint
* resolver: dockerize
* support multiple fallback links for splx contact and channels
* add test
* change url separator to semicolon
---------
Co-authored-by: sh <github.shum@liber.li>
* Disable APNS test provider in production
* refactor(ntf): extract guardPushProvider for test-provider guard
* test(ntf): fix APNS test provider test compilation
* ntf server: use ifM for push provider guard (review)
---------
Co-authored-by: Paul Bottinelli <paul.bottinelli@trailofbits.com>
* crypto: BBS scheme for anonymous credentials with multiple presentations
* verify
* add files to sources
* more files
* more files, use cabal 3.0
* fix path
* extensions
* switch libbbs to fork
* return either from keygen
* use only secret key to sign
* improve FFI
* simplify
* update libbbs to support iOS
* add commoncrypto flag
* bump libbbs
* reject input of wrong length
* ci: get submodules
---------
Co-authored-by: Evgeny @ SimpleX Chat <259188159+evgeny-simplex@users.noreply.github.com>
sh